Elastic Module, Elastic Pad, and Furniture

This application claims priority to Chinese patent application number 202410501945.5, filed on Apr. 25, 2024. Chinese patent application number 202410501945.5 is incorporated herein by reference.

The present disclosure relates to the technical field of furniture products, and in particular relates to an elastic module, an elastic pad, and furniture.

With the gradual improvement of material life of people, the requirements for household goods also vary day by day. Especially for products that require users to sit and lie down for a long time, such as mattresses, sofas, and seats, the requirements of the user are not only increasing, but the requirements also tend to diversify. It should be known that in the current market of the household products, the mattresses are clearly divided into high-grade mattresses and low-grade mattresses. The low-grade mattresses are usually thinner and easier to carry and store, while not capable of meeting the requirements of the user according to comfort at a certain extent. However, the high-grade mattresses usually feature complex internal structures, exquisite workmanship, and increased thickness, resulting in the user feeling superior comfort when sitting and lying down. However, the high-grade mattresses are integrated and cannot be disassembled due to the complex internal structures. The integrated mattresses lead to inconvenience of users when the mattresses are relocated and stored. Further, if some components of the high-grade mattresses age, the user cannot perform targeted maintenance, and the mattresses can only be discarded as a whole, thus causing a certain waste. Further, the existing high-grade mattresses are one-piece structures, so the user can not adjust a firmness level of the high-grade mattresses. Further, the existing mattresses are generally assembled to adapt to the size of the main body of a bed frame. Thus there exists a common problem of poor universality in the size and the model.

The present disclosure provides an elastic module for improving the technical problem of poor adjustability in a firmness of the traditional elastic pads.

In order to solve the afore-mentioned technical problems, the present disclosure provides an elastic module, the elastic module comprises upper springs, lower springs, and connection modules, first connection portions are disposed on bases of the upper springs and upper covers of the lower springs, the first connection portions are connected to second connection portions disposed on upper end surfaces and lower end surfaces of the connection modules to connect the upper springs and the lower springs to form elastic units, the upper springs and the lower springs are pre-compression springs wrapped in flexible sleeves, third connection portions are disposed on side surfaces of the connection modules, and multiple of the elastic units are connected to form the elastic module by the third connection portions.

In a preferred embodiment, the first connection portions disposed on the bases of the upper springs and the upper covers of the lower springs are buckles, the second connection portions disposed on the upper end surfaces and the lower end surfaces of the connection modules are buckling grooves, and the buckles cooperate with the buckling grooves.

In a preferred embodiment, the buckling grooves comprise first portions into which the buckles are buckled and second portions in communication with the first portions and extending along circumferential directions of the connection modules, a pair of the buckles are disposed on each of the bases of the upper springs and the upper covers of the lower springs, the buckles inserted into first portions of the buckling grooves rotate towards the second portions of the buckling grooves, and the buckles fit with the second portions of the buckling grooves.

In a preferred embodiment, the third connection portions are disposed with insertion members and grooves disposed on a same side of the connection modules, elastic arms extending outward into the grooves are disposed on the insertion members, one of the insertion members on a first one of the third connection portions of the elastic units is inserted into a corresponding one of the grooves on a second one of the third connection portions of the elastic units, and one of the insertion members on the first one of the third connection portions of the elastic units elastically abut a corresponding one of the elastic arms on the second one of the third connection portions of the elastic units and fit a corresponding one of wall surfaces of the grooves on a second one of the third connection portions of the elastic units.

In a preferred embodiment, positioning portions are disposed on the wall surfaces of the grooves, and protrusion blocks configured to cooperate with the positioning portions are disposed on the insertion members.

In a preferred embodiment, the bases of the upper springs and the upper covers of the lower springs comprise outer compression rings and inner fixing rings, the inner fixing rings are disposed inside the flexible sleeves and fit wires of the upper springs and the lower springs, the outer compression rings are disposed outside the flexible sleeves, the inner fixing rings and the outer compression rings are nested to enable the flexible sleeves to be clamped, and the first connection portions are disposed on the outer compression rings.

In a preferred embodiment, the inner fixing rings comprise outer ring walls and inner rings extending inwardly from the outer ring walls, the outer compression rings comprise inner ring walls and outer rings extending outwardly from the inner ring walls, the inner rings of the inner fixing rings abut the inner ring walls of the outer compression rings, and the outer rings of the outer compression rings abut the outer ring walls of the inner fixing rings.

In a preferred embodiment, heights of the upper springs and the lower springs are equal or not equal.

In a preferred embodiment, the upper springs and the lower springs are tapered springs, small end-surface rings of the tapered springs are connected to the bases of the upper springs and the upper covers of the lower springs by detachable structures, large end-surface rings of the tapered springs abut and support the flexible sleeves with preset initial compression forces, and diameters of the small end-surface rings of the tapered springs are smaller than diameters of the large end-surface rings of the tapered springs.

In a preferred embodiment, the detachable structures are fastening grooves disposed on the bases of the upper springs and the upper covers of the lower springs.

In a preferred embodiment, the third connection portions comprise first connection structures and second connection structures, and the first connection structures and second connection structures are disposed on adjacent side surfaces of the third connection portions.

In a preferred embodiment, insertion members used as the first connection structures are disposed on the third connection portions, the third connection portions comprise sockets used as the second connection structures, one of the insertion members on a first one of the connection modules is connected to a corresponding one of the sockets on a second one of the connection modules by a male-female connection to realize a connection between the elastic units.

In a preferred embodiment, the insertion members and the sockets are alternatively disposed, or the insertion members are disposed on two first opposite sides of the connection modules, and the sockets are disposed on two second opposite sides of the connection modules.

In a preferred embodiment, buckling structures are disposed on the insertion members, the buckling structures form positioning fit with side walls of the sockets, the buckling structures have elasticities, release members configured to push the elasticities of the buckling structures are disposed on positions of the side walls of the sockets corresponding to the buckling structures, and the release members are pressed to drive buckling structures to release the positioning fit with the sockets to achieve a disassembly of adjacent ones of the elastic units.

In a preferred embodiment, the buckling structures are protrusion blocks disposed on upper sides of the insertion members, and upper side walls of the sockets comprise spaces into which the protrusion blocks are inserted to achieve the positioning fit of the buckling structures and the sockets.

In a preferred embodiment, the buckling structures are protrusion blocks disposed on both sides or a single side of the insertion members, and the release members and the side walls of the sockets form spaces into which the protrusion blocks are buckled to achieve the positioning fit of the buckling structures and the sockets.

In a preferred embodiment, the insertion members are T-shaped protrusions, the sockets are concave holes, push buttons configured to move up and down in a vertical direction are sleeved over the concave holes, the push buttons comprise buckling holes corresponding to the concave holes, position-limiting holes with diameters smaller than that of the buckling holes are disposed on upper sides of the buckling holes, one of the T-shaped protrusions on a first one of the connection modules of the elastic units passes through a corresponding one of the buckling holes on a second one of the connection modules of the elastic units and is buckled into a corresponding one of the concave holes on the second one of the connection modules of the elastic units, and a corresponding one of the push buttons on the second one of the connection modules of the elastic units is pressed until the one of the T-shaped protrusions on the first one of the connection modules of the elastic units is locked by the corresponding one of the buckling holes on the second one of the connection modules of the elastic units, enabling the elastic units to be connected to each other.

In a preferred embodiment, the insertion members are protrusions, the sockets are grooves, knobs are sleeved over the grooves, the knobs comprise spaces through which the protrusions are buckled into the grooves, and the knobs rotate until the protrusions are locked, enabling the elastic units to be connected to each other.

In a preferred embodiment, the third connection portions comprise first connection structures and second connection structures, the first connection structures and the second connection structures are disposed on different ones of the elastic units respectively, one of the first connection structures on a first one of the elastic units is connected to a corresponding one of the second connection structures on a second one of the elastic units to achieve a connection of the elastic module.

In a preferred embodiment, the first connection structures are configured to be insertion members, the second connection structures are configured to be sockets, the insertion members are connected to the sockets in male-female connections to achieve a connection between the elastic units, the insertion members are rotatable protrusions, the sockets are concave holes, when the rotatable protrusions rotate to be misaligned with the concave holes, the first connection structures are connected to the second connection structures, and when the rotatable protrusions rotate to be aligned with the concave holes, connections of the first connection structures and the second connection structures are released.

The present disclosure further discloses an elastic pad, the elastic pad comprises an additional surface layer, and the elastic module, the additional surface layer is configured to be laid on the elastic module.

In a preferred embodiment, flexible bands are disposed on a periphery of the additional surface layer at intervals, first ends of the flexible bands are fixedly connected to the additional surface layer, second ends of the flexible bands are connected to insertion buckling seats, and the insertion buckling seats are buckled to corresponding ones of the third connection portions on a periphery of the elastic module to fix the additional surface layer.

In a preferred embodiment, the additional surface layer is an elastic layer.

The present disclosure further discloses furniture, the furniture comprises at least one of the elastic module or the elastic pad.

In a preferred embodiment, the furniture is a bed or a chair.

Compared with the existing techniques, the technical solution has the following advantages.

The present disclosure provides the elastic module. The internal tapered pre-compression springs can be detachably installed through the buckling grooves, and a purpose of adjusting a firmness level of the elasticity pad can be achieved by replacing the elastic units with different tension levels for the user, so as to improve the technical problem of the poor adjustability in the firmness of the traditional one-piece elastic structural pad.

The present disclosure provides the elastic module. Adjacent ones of the elastic units in the same plane are detachably spliced through the connection modules, disassembly and assembly are convenient, and the plane assembly way is more flexible at the same time. The user can flexibly adjust of a geometric shape of the elastic module according to the actual requirements, so as to overcome the limitation that the existing mattresses can only be customized according to a size of a main frame of a bed frame or directionally procured. Thus, the general problem of the poor adaptability of the traditional one-piece elastic structural pad size model is well solved.

The technical solutions of the embodiments of the present disclosure will be clearly and completely described below in combination with the drawings of the embodiments of the present disclosure. It should be obvious that the embodiments described below are merely some of the embodiments of the present disclosure instead of all embodiments. All other embodiments fall into the protection scope of the present disclosure provided that they are obtained by a person of skill in the art based on the embodiments of the present disclosure without creative works.

In the description of the present disclosure, it should be noted that terms, such as “upper”, “lower”, “inner”, “outer”, “top”, “bottom”, and the like, refer to orientations or positional relationships based on the orientations and the positional relationships shown in the drawings. These terms are used for convenience in describing the present disclosure and simplifying the description, rather than indicating or implying that the device or the element should have a specified orientation or should be constructed or operated in the specified orientation, and should not be interpreted as a limitation of the present disclosure. Additionally, the terms “first” and “second” are merely used for descriptive purposes and should not be understood to indicate or imply relative importance.

In the description of the present disclosure, unless otherwise clearly stated or limited, terms, such as “installed”, “disposed”, “mounted”, “sleeved”, and “connected”, should develop broad understandings. For example, “connected” can refer to a wall-mounted connection, a detachable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or an internal communication between two components. The specified meaning of the terms in the present disclosure can be understood by those of skill in the art based on the specified conditions.

Referring to, this embodiment provides elastic units, and each of the elastic unitscomprises an upper spring, a corresponding one of connection modules, and a lower springin sequence along a height direction downwardly. The upper springand the lower springare pre-compression springs wrapped by flexible sleeves A made of cloth or other flexible materials. To be precise, the upper springand the lower springare tapered springs with large end-surface rings tapering down to small end-surface rings. Construction of a base of the upper springand an upper cover of the lower springis the same, and each comprises an outer compression ringand an inner fixing ringthat form a nested cooperation. The outer compression ringand the inner fixing ringform the nested cooperation to compress and secure a relative position of a corresponding one of the flexible sleeves A.

Specifically, referring to, the inner fixing ring, disposed inside the corresponding one of the flexible sleeves A, comprises an outer ring walland an inner ringextending inward from the outer ring wall. The outer compression ring, disposed outside the corresponding one of the flexible sleeves A, comprises an inner ring walland an outer ringextending from the inner ring wall. The inner ringof the inner fixing ringabuts the inner ring wallof the outer compression ring, and the outer ringof the outer compression ringabuts the outer ring wallof the inner fixing ring. That is, both of the base of the upper springand the upper cover of the lower springsurround and are nested to openings of the flexible sleeves A to form enclosed spaces surrounding the tapered springs. Within each of the enclosed spaces, a corresponding one of the tapered springs is detachably mounted in a fastening grooveon the inner fixing ringof a corresponding one of the base of the upper springand the upper cover of the lower springby a corresponding one of the small end-surface rings of the tapered springs, and a corresponding one of the large end-surface rings of the tapered springs extends in a direction away from the inner fixing ring. With this internal arrangement, the inner fixing ringand the outer compression ringthat are nested together are not only stressed as an integrated structure and used as a positioning support, but the user can also adjust a firmness of the elastic pad by replacing pre-compression springs with different tension levels using the fastening grooveas a detachable connection structure. Alternatively, in a case where an elastic relaxation of a wire of one of the pre-compression springs occurs after a long time due to crush fatigue, the wire of the one of the pre-compression springs can be replaced by a wire of a new pre-compression spring using the detachable connection structure to solve waste of resources caused by discarding an entirety of the traditional one-piece elastic structural pad due to no targeted maintenance for some aging parts of the traditional one-piece elastic structural pad, so as to improve practicality and durability of a product. Each of the large end-surface rings of the pre-compression springs extends in a direction away from the inner fixing ringto abut and expand a corresponding one of the flexible sleeves A using a predetermined initial compression force. The flexible sleeves A undergo passive stress, and flexible materials of main bodies of the flexible sleeves A are expanded to be stretched at the same time. This enables the flexible sleeves A and the pre-compression springs that are nested together to be more tightly fitted together to ensure that elastic coils spirally disposed on the tapered springs at intervals are integrated along radial slopes, and the torsional deformation resistance of the corresponding one of elastic unitsis further improved.

Both of the upper springand the lower springare detachably connected to the corresponding one of the connection moduleson a middle position of the corresponding one of the elastic unitsthrough rotational position-limiting structures and combine to form the corresponding one of the elastic unitsextending along its own height direction. Specifically, the upper springand the lower springare respectively connected to second connection portions on top and bottom surfaces of the corresponding one of the connection modulesthrough first connection portions on the base of the upper springand the upper cover of the lower springto obtain a detachable connection. Constructively, the first connection portions are buckles, and the second connection portions are buckling groovesthat cooperate with the buckles. The bucklesare rotatably locked to the buckling groovesto enable the corresponding one of the elastic unitsto be assembled.

Referring to, each of the bucking groovesforms position-limiting structure. The position-limiting structure comprises a first portionconfigured to enable a corresponding one of the bucklesto be inserted into the first portionand a second portionin communication with the first portionand extending in a circumferential direction of each of the buckling grooves. When each of the bucklesmoves into the second portionwithin a corresponding one of the buckling grooves, each of the bucklesforms a positioning fit with the second portionopposite to an insertion direction of the corresponding one of the buckles. The position-limiting structure of each of the buckling groovesis designed to facilitate quick disassembly or assembly between the upper spring or the lower spring and the corresponding one of the connection modulesby the user by rotational twisting.

Adjacent ones of the elastic unitsare in the same plane and are connected through third connection portionssurrounding peripheries of the connection modules. Insertion membersare disposed on first sides of the third connection portions, and second sides of the third connection portionscomprise grooves. Elastic armsextending outward to the groovesare disposed on first ends of the insertion members. When one of the insertion memberson a first one of the elastic unitsis inserted into a corresponding one of the groovesof the third connection portionson a second one of the elastic units, the one of the insertion memberson the first one of the elastic unitselastically abuts a corresponding one of the elastic armson the second one of the elastic unitsand tightly fits a wall of the corresponding one of the grooveson the second one of the elastic units. Second ends of the insertion memberspass through notches of ends of the third connection portionsto form operating portions. As position-limiting portionsare disposed on the walls of the grooves, the position-limiting portionsare positioned to and cooperate with protrusion blocksof the operating portions, and the protrusion blocksrotate from first positions to second positions under an external force applied to the operating portions. When each of the protrusion blocksis at a corresponding one of the first portions, two corresponding adjacent ones of the third connection portionsthat are connected oppositely cooperate by buckling. When each of the protrusion blocksis at a corresponding one of the second positions, the two corresponding adjacent ones of the third connection portionsthat are connected oppositely are released from buckling.

Each of the elastic unitscomprises the upper spring, the corresponding one of the connection modules, and the lower springin sequence along the height direction downwardly. Each of the elastic unitsthat has been assembled is shown in, and a top and a bottom of each of the elastic unitsare the large end-surface rings of the tapered springs. This structural configuration effectively improves a stressed area and a support area, and an installation balance and an assembly stability of the elastic unitare further enhanced. Considering different requirements of the user on a thickness of the elastic pad, heights of the upper springand the lower springconnected by the corresponding one of the connection modulesin this embodiment are not limited. That is, the heights of the upper springand the lower springcan be equal or unequal, and the user can selectively configure heights or a number of layers according to his own usage habits. In other words, the user can merely selectively configure the upper springused as the elastic pad in a single-layer, can selectively configure both of the upper springand the lower springin upper and lower layers used as the elastic pad in a double layer, and/or can adjust a thickness and a comfort level of a body of the elastic pad by selecting tension levers of the upper springand the lower springin the upper and lower layers.

Referring to, this embodiment provides an elastic module formed by combining and assembling the elastic units. An inner side of the elastic module comprises multiple of the elastic units, and adjacent ones of the elastic unitsare connected by the third connection portionsdisposed on the peripheries of the connection modulesfor a locked connection. When the elastic module is assembled, the elastic unitsto be installed are firstly placed flat; the elastic unitsin adjacent positions are then adjusted and aligned according to a placement direction of the third connection portions; preset squeezing forces are then applied in opposite directions to two adjacent ones of the elastic unitswith the positions already adjusted to push two of the insertion memberson the two adjacent ones of the elastic unitsinto two of the grooveson the two adjacent ones of the elastic units, and the two adjacent ones of the elastic unitsare connected in opposite directions. At this time, two of the operating portionsextend outward. An assembly of the two adjacent ones of the elastic unitsthat are connected in opposite directions is complete by then, subsequent installation steps of remaining ones of the elastic unitsare completed using the same operation action, and the remaining ones of the elastic unitsare connected in opposite directions. When the assembled elastic modules are to be disassembled, merely the two of the operation portionsthat are symmetrically disposed are pressed at the same time, and a squeezing force from pressing causes the insertion membersto misalign along slope directions, so as to drive the protrusion blocksdisposed on the operation portionsto be separated from a position limitation of the position-limiting portions, and a disassembly of the two adjacent ones of the elastic unitsthat are connected in opposite directions is complete. This assembly method is flexible and convenient, and a geometric shape of the elastic module can be flexibly adjusted according to actual use requirements of the user, so as to overcome the limitation that the existing elastic pad (the existing mattress) can merely be customized or directionally procured according to a size of a main frame of a bed frame, and the common problem that a size and a model of the elastic pad of the traditional one-piece elastic structural pad have poor universality.

Referring to, this embodiment provides the elastic pad and furniture configured with the elastic pad. The elastic pad comprises an additional surface layer, and the elastic module formed by a spliced assembly of the elastic unitsin Embodiments 1 and 2. The additional surface layercan be laid on and covers the elastic module formed by the elastic units. As corresponding ones of the elastic unitson an upper part of the elastic module define inverted tapered shapes, multiple of the inverted tapered shapes that are assembled together are prone to topple and bend when being subjected to stress. This embodiment brings stressed surfaces of the corresponding ones of the elastic unitson the upper part of the elastic module together by including the additional surface layerto solve an overall stressed problem of the structure, thus effectively improving denseness and compactness of the overall structure.

Flexible strapsare disposed on a periphery of the additional surface layerat intervals. First ends of the flexible strapsare fixedly connected to the additional surface layer, and second ends of the flexible strapsare connected to insertion buckling seats. The insertion buckling seatscan be connected to the third connection portionson a periphery of the elastic module to fix the additional surface layerto a top of the elastic module.

Referring to, this embodiment mainly differs from Embodiment 1 in that the third connection portionsdescribed in this embodiment comprise first connection structures and second connection structures, and the first connection structures and the second connection structures are alternatively disposed on adjacent side surfaces of the third connection portions. The first connection structures and the second connection structures are disposed adjacent to each other on different side surfaces around each of the connection modules. More specifically, in this embodiment, insertion membersused as the first connection structures are disposed on two first opposing side surfaces of the different side surfaces of a corresponding one of the connection modules, and two second opposing side surfaces of the different side surfaces of the corresponding one of the connection modulescomprise socketsused as the second connection structures. Protrusion blocksare disposed on upper sides of the insertion membersand used as buckling structures, and upper walls of the socketscomprise spaces into which the protrusion blocksare buckled. When the insertion membersare inserted into the sockets, the protrusion blocksare buckled into the spaces. At this time, positioning fit of the insertion membersand the socketsenables the elastic unitsto be connected. The protrusion blocksused as the buckling structures have elasticities, and positions of the upper walls of the socketscorresponding to the protrusion blocksare disposed with release membersconfigured to push the elasticities of the protrusion blocks. The release membersare pressed to drive the protrusion blocksto be separated from the spaces of the upper walls of the socketsto release the positioning fit of the insertion membersand the socketsto achieve a disassembly of the elastic module. When the elastic module is assembled, one of the insertion memberson a first one of the connection modulesof the elastic unitsis inserted into a corresponding one of the socketson a second one of the connection modulesof the elastic units, and a corresponding one of the protrusion blocksis buckled into a corresponding one of the spaces of the upper walls of the socketsto enable the elastic unitsto be connected. When the elastic module is disassembled, one of the release membersis pressed to drive a corresponding one of the protrusion blocksto be separated from a corresponding one of the spaces of the upper walls of the sockets, and the positioning fit of the socketsand the insertion membersis released to disassemble the elastic units.

Referring to, this embodiment mainly differs from Embodiment 1 in that the insertion membersare inserted into the socketsfrom an upper side, i.e., from a height direction of the elastic units. The socketscomprise openings in an insertion direction of the insertion membersand also comprise openings in a direction opposite to the elastic units, so that the socketsare more elastic to enable fits between the insertion membersand the socketsto be more compact. The insertion membersand the socketsare detachably disposed on peripheries of the connection modules. Protrusion blocksused as buckling structures are disposed on two sides or a single side of the insertion members, and release membersare disposed on positions of two side walls of the socketscorresponding to the protrusion blocks. The release membersand the two side walls of the socketsform spaces in which the protrusion blocksare buckled. The insertion membersare inserted into the socketsfrom a vertical direction, and the protrusion blocksare buckled into the spaces on the two side walls of the sockets. At this time, the insertion membersare positioned to and cooperate with the socketsto enable the elastic unitsto be connected. The release membersare pressed to push the protrusion blocksto be separated from the spaces on the two side walls of the socketsto disassemble two of the elastic units.

Referring to, this embodiment mainly differs from Embodiment 1 in that T-shaped protrusionsof insertion members used as first connection structures are disposed on two first opposite sides on peripheries of the connection modules, and two second opposite sides on the peripheries of the connection modulescomprise concave holes of sockets. Push buttonsare sleeved over the concave holes and are configured to move up and down in a vertical direction and be locked to the T-shaped protrusions, and a combination of the concave holes and the push buttonsare used as second connection structures. Specifically, the push buttonscomprise buckling holescorresponding to the concave holes, and position-limiting holeshaving diameters smaller than that of the buckling holesare disposed on upper sides of the buckling holes. When the elastic unitsare connected, one of the T-shaped protrusionsof the connection moduleson a first one of the elastic unitsis inserted into a corresponding one of the concave holes of the connection moduleson a second one of the elastic unitsafter passing through a corresponding one of the buckling holesof the push buttonson the second one of the elastic units. In this state, the T-shaped protrusionspass through both of the concave holes of the sockets and the buckling holesof the push buttons, and the push buttonsare then pressed downward until the T-shaped protrusionsare locked by the position-limiting holesto enable the elastic unitsto be connected each other. When the elastic module is disassembled, the push buttonsare lifted upward to enable the buckling holesto be aligned with the concave holes to be unlocked, and a connection between the elastic unitsis released by removing the T-shaped protrusionsfrom the concave holes.

Referring to, this embodiment mainly differs from Embodiment 1 in that T-shaped protrusionsof insertion members used as first connection structures are disposed on two first opposite sides on peripheries of the connection modules, and two second opposite sides on the peripheries of the connection modulescomprise groovesand knobsof sockets. The knobsare sleeved over the grooves, and the knobsand the groovescombine to be used as second connection structures. The knobscomprise spaces through which the T-shaped protrusionsare buckled into the grooves. When the elastic unitsare connected, one of the T-shaped protrusionson a first one of the elastic unitsis buckled into a corresponding one of the grooveson a second one of the elastic unitsthrough a corresponding one of the knobson the second one of the elastic units. At this time, the T-shaped protrusionsare positioned to and cooperate with the groovesin a horizontal direction. The knobsrotate until the T-shaped protrusionsare positioned to and cooperate with the knobsin a vertical direction. At this time, the T-shaped protrusionsare locked by the knobsto achieve a connection between adjacent ones of the elastic units. When the elastic module is disassembled, the knobsrotate until the T-shaped protrusionsare unlocked by the knobs, and the T-shaped protrusionsare taken out to release the connection between the adjacent ones of the elastic units.

Referring to, this embodiment mainly differs from Embodiment 1 in that the third connection portions disposed on peripheries of the connection modulescomprise first connection structuresand second connection structures, and the first connection structuresand the second connection structuresare respectively disposed on different ones of the elastic units. In detail, peripheries of the second connection structurescomprise connection seats extending outwardly to form first extension portions, and concave holesused as sockets are disposed on the extension portions. Peripheries of the first connection structuresalso extend outwardly to form second extension portions, and rotatable protrusionsused as insertion members are disposed on the second extension portions. When the elastic unitsare connected, the rotatable protrusionsof the first connection structuresare inserted into the concave holesof the second connection structures, and the rotatable protrusionsare positioned to and cooperate with the concave holesin a horizontal direction. The rotatable protrusionsrotate to be misaligned with the concave holes, and the rotatable protrusionsare positioned to and cooperate with the concave holesin a vertical direction, so as to achieve a connection between the elastic units. When the elastic module is disassembled, the rotatable protrusionsrotate to be aligned with the concave holes, and the rotatable protrusionscan be disengaged from the concave holesto release the connection between the elastic unitsat this time.

The preceding description of the specification and the embodiments is used to explain the protection scope of the present disclosure, while the protection scope of the present disclosure is not limited thereto. Modifications, equivalent substitutions, or other improvements of the embodiments of the present disclosure or some of the technical features thereof fall into the protection scope of the present disclosure provided that they are obtained by a person of ordinary skill in the art through logical analysis, reasoning, or limited experimentation by combining common knowledge, ordinary technical knowledge in the art, and/or the existing techniques through the revelation of the present disclosure or the preceding embodiments.