Elastic Module and Elastic Cushion

This application claims priority to Chinese patent application number 202410501946.X, filed on Apr. 25, 2024. Chinese patent application number 202410501946.X is incorporated herein by reference.

The present disclosure relates to the field of furniture, particularly to an elastic module and an elastic cushion.

Furniture, such as mattresses, are characterized by large volume and difficulty in transportation. Most existing mattresses lack disassembly functionality or cannot be easily restored after disassembly. However, with the evolution of modern lifestyles, furniture, like mattresses, increasingly requires frequent assembly and disassembly to accommodate population migration and outdoor leisure needs.

Currently, some detachable mattresses have been developed, where each spring unit is independent and interconnectable. However, a mattress typically employs a large number of independent spring units. Even when disassembled, these units occupy significant space during transportation and are challenging to manually transport quickly.

Therefore, there is a need to redesign spring units to reduce their spatial footprint during transportation and facilitate manual handling.

Additionally, users have varying preferences for mattress firmness—some prefer soft mattresses, while others favor firm ones. To replace springs with different firmness levels, users must disassemble and reinstall all components of the independent spring units, which is highly inconvenient and prone to damage.

The present invention provides an elastic module and an elastic cushion that reduce an occupied space during disassembled transportation, facilitate manual handling, and allow users to replace springs with varying firmness levels according to their needs without disassembling the spring units.

In order to solve the above technical problems, the present disclosure provides an elastic module, and the elastic module comprises a plurality of spring units. The plurality of spring units are configured to be spliced together to form the elastic module, and each of the plurality of spring units comprises a first spring and a second spring. The first spring is configured to be axially compressed to a locking position, and an upper end of the first spring is disposed with an end cover. The second spring is detachably connected to the end cover to form a corresponding one of the plurality of spring units.

In a preferred embodiment, a bottom of the second spring is disposed with a bottom cover, and the bottom cover of the second spring is connected to the end cover by rotation, insertion, or threads.

In a preferred embodiment, the bottom cover of the second spring is symmetrically provided with two rotation-connecting members, and each of the two rotation-connecting members comprises a first part and a second part. The first part extends axially from a bottom of a base, and the second part is located at an end of the first part and extends radially outward from a center of the first part.

In a preferred embodiment, a top of the end cover comprises two sliding rails corresponding to the two rotation-connecting members in a one-to-one correspondence as a mounting structure, and each of the two sliding rails is a strip-shaped recessed hole. A width of the strip-shaped recessed hole gradually narrows along a rotation direction of the two rotation-connecting members, and a width of a narrowest part of the strip-shaped recessed hole is smaller than a width of the second part.

In a preferred embodiment, a bottom of the bottom cover of the second spring is disposed with an insertion member.

In a preferred embodiment, a top of the end cover of the first spring comprises an insertion groove configured to correspond to the insertion member.

In a preferred embodiment, the bottom of the bottom cover of the second spring is disposed with a conical insertion member with a gradually decreasing radius along an insertion direction of the conical insertion member. The conical insertion member is configured to be inserted into the insertion groove to enable the conical insertion member to be self-locked along a vertical direction.

In a preferred embodiment, the bottom of the bottom cover is symmetrically provided with two tapered insertion members with a gradually decreasing width along an insertion direction of the two tapered insertion members, and a tapered groove is formed between the two tapered insertion members. Two sides of the top of the end cover comprise two tapered insertion grooves configured to cooperate with the two tapered insertion members, and a tapered protrusion is formed between the two tapered insertion grooves. The two tapered insertion members are configured to be inserted into the two tapered insertion grooves, and a double-conical surface structure formed by the two tapered insertion members and the tapered protrusion is self-locked along a vertical direction.

In a preferred embodiment, an inside the end cover comprises a threaded connecting member, and outer threads are provided on an outer wall of the threaded connecting member. The bottom cover is a circular ring, and an inner wall of the circular ring is provided with inner threads. The bottom cover of the second spring is threadedly connected to the threaded connecting member.

In a preferred embodiment, the plurality of spring units are arranged in a staggered arrangement to form a hexagonal distribution.

The present disclosure provides an elastic module, and the elastic module comprises a plurality of spring units and a connecting plate. The plurality of spring units are configured to be spliced together to form the elastic module, and each of the plurality of spring units comprises a first spring and a second spring. The first spring is configured to be axially compressed to a locking position, and an upper end of the first spring is disposed with an end cover. A bottom of the second spring is disposed with a bottom cover, and the end covers of the first springs of the plurality of spring units and the bottom covers of the second springs of the plurality of spring units are respectively connected to two sides of the connecting plate to form the elastic module.

In a preferred embodiment, a lower side of the connecting plate comprises a first insertion structure into which the end cover of the first spring is inserted, and an upper side of the connecting plate comprises a second insertion structure into which the bottom cover of the second spring is inserted.

In a preferred embodiment, the first springs of the plurality of spring units are arranged in a transverse direction and a longitudinal direction to be in a matrix arrangement, or the first springs of the plurality of spring units are arranged in a staggered arrangement to form a hexagonal distribution.

In a preferred embodiment, the second springs of the plurality of spring units are arranged in a transverse direction and a longitudinal direction to be in a matrix arrangement, or the second springs of the plurality of spring units are arranged in a staggered arrangement to form a hexagonal distribution.

In a preferred embodiment, the upper side and the lower side of the connecting plate each comprises a plurality of circular protruding rings extending along a vertical direction, and the end cover and the bottom cover each comprises a recessed hole that is interference-fitted with a corresponding one of the plurality of circular protruding rings.

In a preferred embodiment, the upper side and the lower side of the connecting plate are each formed with a plurality of annular insertion grooves, and an inside of each of the plurality of annular insertion grooves comprises a tapered insertion member configured to be connected to the bottom cover or the end cover to be self-locked along an axial direction of the first spring.

The present disclosure provides an elastic module, and the elastic module comprises a plurality of spring units. Each of the plurality of spring units comprises a first spring and a second spring, and the first spring is configured to be axially compressed to a locking position. An upper end of the first spring is disposed with an end cover, and the second spring is detachably connected to the end cover. The plurality of spring units are arranged in a transverse direction and a longitudinal direction to be in a matrix arrangement to enable adjacent rows or columns of the plurality of spring units to be formed with gaps, and one or more third springs are inserted into one or more of the gaps to form the elastic module.

In a preferred embodiment, the second spring is in an inverted conical shape, and the one or more third springs are in a positive conical shape.

In a preferred embodiment, the second spring and the one or more third springs are cylindrical in a same size.

The present disclosure provides an elastic module, and the elastic module comprises a plurality of spring units. The plurality of spring units are configured to be spliced together to form the elastic module, and each of the plurality of spring units comprises a first spring and at least two second springs. The first spring is configured to be axially compressed to a locking position, and an upper end of the first spring is disposed with an end cover. The at least two second springs are detachably connected to the end cover to form a corresponding one of the plurality of spring units.

In a preferred embodiment, the end cover comprises at least two mounting structures, and the at least two second springs are connected to the end cover through the at least two mounting structures by insertion or rotation.

In a preferred embodiment, the second spring is configured to be axially compressed to a locking position.

In a preferred embodiment, the second spring is a hollow structure, and the second springs of the plurality of spring units are configured to be stacked to each other along an axial direction of the second springs.

In a preferred embodiment, a flexible spring top cover is provided on an upper side of the second spring, and the flexible spring top cover is inserted into the hollow structure.

In a preferred embodiment, an end of the first spring facing the end cover is disposed with a base, and a lower end of the end cover is disposed with a first buckling structure extending along a spring compression direction. An upper end of the base is disposed with a second buckling structure extending along the spring compression direction. When the first spring is in the locking position, the first buckling structure and the second buckling structure are buckled to each other.

In a preferred embodiment, two hooks are symmetrically provided on a lower end surface of the end cover in the spring compression direction as the first buckling structure. Each of the two hooks comprises a connecting portion and a hook portion, and the hook portion is disposed on an outer side of the connecting portion.

In a preferred embodiment, two sides of the base extend toward a center of the base to form two buckling members as the second buckling structure, and each of the two buckling members comprises a connecting arm and a buckling portion. The buckling portion is located at a distal end of the connecting arm, and the buckling portion is suspended so that the two buckling members have elasticity to be pushed up by the two hooks. When the first spring is in the locking position, the hook portion and the buckling portion are axially interlocked with each other to achieve a buckling connection.

In a preferred embodiment, a distance between the buckling portion and a central axis of the first spring gradually decreases along the spring compression direction of the first spring, so that the buckling portion forms an inclined surface. Due to an external force, the hook portion slides down along the inclined surface to be buckled to a bottom end of the buckling portion, so that the two hooks and the two buckling members are axially interlocked with each other.

In a preferred embodiment, due to the external force, the hook portion pushes the buckling portion until the hook portion is separated from the buckling portion to release the buckling connection.

In a preferred embodiment, a lower end surface of the end cover is disposed with a pushing member extending along the spring compression direction of the first spring, and two sides of the pushing member are respectively disposed with one or more elastic position-limiting members as the first buckling structure.

In a preferred embodiment, an upper end surface of the base is disposed with a position-limiting groove configured to cooperate with the one or more elastic position-limiting members as the second buckling structure, and a side wall of the position-limiting groove is formed with a position-limiting wall. Due to an external force, the pushing member drives the one or more elastic position-limiting members to slide into the position-limiting groove, so that the one or more elastic position-limiting members are stuck by the position-limiting wall to achieve a buckling connection.

In a preferred embodiment, the first spring comprises a spring and a cloth cover, and the cloth cover is wrapped on an outside of the spring. An outside of the cloth cover at a top of the spring is disposed with a ring, and a lower surface of the ring is recessed inward along a vertical direction to form an annular groove. A bottom surface of the end cover is disposed with a positioning structure, and the positioning structure is buckled to the annular groove to be interlocked with the ring.

In a preferred embodiment, the ring comprises a first portion and a second portion, and the second portion is disposed on an inside of the cloth cover. The first portion is disposed on the outside of the cloth cover, and the first portion and the second portion are buckled and fixed to the spring.

In a preferred embodiment, the first spring comprises a spring and a cloth cover, and the cloth cover is wrapped on an outside of the spring. An outside of the cloth cover at a bottom of the spring is disposed with a ring, and an outside of the ring comprises a protrusion. A radial outside of the base forms a U-shaped groove, and a top of an outer wall of the U-shaped groove forms a positioning structure. The ring is buckled to the U-shaped groove, and the U-shaped groove and the ring are axially interlocked with each other.

In a preferred embodiment, a spring in the second spring is detachable.

In a preferred embodiment, an elastic cushion comprises the elastic module.

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

Compared with the existing techniques, the beneficial effects of the present disclosure are as follows. The elastic module of the present disclosure allows each of the plurality of spring units to be disassembled into the first spring and the second spring, which are detachably installed. The first spring can be compressed axially to a locking position, thereby reducing the occupied space during disassembled transportation and facilitating manual handling. Additionally, the second spring, designed for direct contact with a human body, can be replaced without disassembling the entire spring unit, enabling users to customize firmness levels by the second springs of varying stiffness, thus meeting diverse user demands.

The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present disclosure, and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

In the description of the present disclosure, it should be noted that the terms “upper”, “lower”, “inner”, “inner”, “outer”, “top end”, “bottom end”, etc. indicate the orientation or positional relationship based on the orientation shown in the drawings. The positional relationship is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the referenced device or element must have a specific orientation, be constructed, and be operated in a specific orientation. Therefore, the positional relationship should not be understood as a limitation of the present disclosure. Additionally, the terms “first” and “second” are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

In the description of the present disclosure, it is noted that unless otherwise explicitly defined or limited, terms such as “mounted,” “provided with,” “sleeved”, “fitted,” and “connected” shall be interpreted broadly. For example, “connected” may refer to wall-mounted connections, detachable connections, integral connections, mechanical connections, or electrical connections. It may involve direct attachment, indirect linkage via an intermediary medium, or internal communication between two components. To those of ordinary skill in the art, the specific meanings of these terms in the context of the present disclosure may be understood based on practical circumstances.

Referring to, an elastic module is provided in this embodiment, and the elastic module comprises a plurality of spring units. Each of the plurality of spring unitscomprises a first springand a second spring, and the first springis configured to be axially compressed to a locking position due to an external force.

Specifically, the first springcomprises a spring, a cloth cover, and an end cover, which are similar to those disclosed in Embodiment. The cloth coveris wrapped on an outside of the spring. The end coveris installed on a top of the springand an outside of the cloth coverto enable the cloth coverto be fixed to form a pocket spring. All sides of the end covercomprise a plurality of connecting structures, and adjacent ones of the first springsof the plurality of spring unitsare configured to be spliced together through the plurality of connecting structures. The second springcomprises a bottom cover, and the bottom coverof the second springis detachably connected to the end coverthrough a mounting structure on the end cover, so that the second springis installed on the first springto form a corresponding one of the plurality of spring units. The plurality of spring unitsare spliced together through the plurality of connecting structureson the all sides of the first springto form the elastic module.