Foldable Support, Foldable Chair and Foldable Table

The present disclosure relates to the technical field of outdoor leisure products, and in particular to a foldable support, a foldable chair, and a foldable table.

Recently, a foldable chair frame of a triangular frame structure has emerged on the market, including a triangular frame, a lower support leg assembly detachably connected to the triangular frame, and an upper support rod assembly detachably connected to the triangular frame. The triangular frame includes a rear connecting block, two front connecting blocks, two side connecting rods, and a front connecting rod, where the two front connecting blocks are symmetrically arranged in front of the rear connecting block, one end of either of the two side connecting rods is rotatably connected to the rear connecting block, and the other ends of the two side connecting rods are fixedly connected to the two front connecting blocks. The front connecting rod is provided with a first end and a second end opposite to the first end, the first end of the front connecting rod is rotatably connected to one of the front connecting blocks, and the second end of the front connecting rod is locked in the other front connecting block through a locking mechanism. When the locking mechanism is released from the second end of the front connecting rod, the second end of the front connecting rod can rotate backward to detach from the other front connecting block, and the two side connecting rods can converge towards each other with the rear connecting block as a fulcrum. However, in the prior art, locking mechanisms of such foldable chair frames still have the defects such as structural complexity, excess of parts and components, poor reliability and the like, thereby requiring improvement by relevant practitioners.

In order to overcome the defects in the prior art, an objective of the present disclosure is to provide a foldable support that has the advantages such as a simple structure, easy locking, high reliability, and convenient unlocking, as well as a foldable chair and a foldable table with the foldable support.

The objective of the present disclosure is achieved through the following technical solution:

A foldable support, including a foldable triangular frame, a lower support leg assembly that is detachably connected to the triangular frame, and an upper support rod assembly that is detachably connected to the triangular frame, where the triangular frame includes a first connecting block, a second connecting block, a third connecting block, a first connecting rod, a second connecting rod, and a third connecting rod, where the second connecting block and the third connecting block are symmetrically arranged on one side of the first connecting block, one end of the first connecting rod and one end of the second connecting rod are rotatably connected to the first connecting block respectively, and the other ends of the first connecting rod and the second connecting rod are fixedly connected to the second connecting block and the third connecting block respectively; the third connecting rod is provided with a first end and a second end opposite to the first end, the first end of the third connecting rod is rotatably connected to the second connecting block, the second end of the third connecting rod is provided with a limiting elastic column and an unlocking button, the third connecting block is provided with a connecting groove, a locking hole is formed in a side wall of the connecting groove, and the second end of the third connecting rod enters the connecting groove and is snap-fitted into the locking hole by means of the limiting elastic column, thereby being tightly locked in the third connecting block; and the unlocking button is in linked connection with the limiting elastic column, and the unlocking button is pressed to disengage the limiting elastic column from the locking hole, such that the second end of the third connecting rod is unlocked in the third connecting block, and in this case, the second end of the third connecting rod can be detached from the connecting groove, and the triangular frame is folded.

Further, the unlocking button is arranged at a position of the second end of the third connecting rod that is offset from the third connecting block, such that when the second end of the third connecting rod enters the connecting groove, the unlocking button is located at a certain distance from an inner side of the third connecting block.

Further, a spring plate is arranged inside the second end of the third connecting rod, one end of the unlocking button and one end of the limiting elastic column respectively extend into inside of the second end of the third connecting rod and abut against the spring plate, the other ends of the unlocking button and the limiting elastic column, under the action of an elastic force from the spring plate, are exposed outside the second end of the third connecting rod, and a peripheral wall of the second end of the third connecting rod is provided with a first hole for exposing the unlocking button and a second hole for exposing the limiting elastic column.

Further, the spring plate is curved and includes a first end arm and a second end arm that are arranged opposite to each other, the first end arm abuts against a side of the inside of the second end of the third connecting rod that is opposite to the first hole and the second hole, the second end arm abuts against a same side of the inside of the second end of the third connecting rod where the first hole and the second hole are located, and extending ends of the unlocking button and the limiting elastic column abut against the second end arm respectively.

Further, a length of the second end arm is greater than that of the first end arm.

Further, the unlocking button and the limiting elastic column are linearly spaced apart from each other at the second end of the third connecting rod, the unlocking button is arranged closer to an inner side of the second end of the third connecting rod, and the limiting elastic column is arranged closer to an outer side of the second end of the third connecting rod.

Further, the locking hole is a through hole formed in an upper side wall of the connecting groove, and correspondingly, the unlocking button and the limiting elastic column are both arranged on an upper side of the second end of the third connecting rod.

A foldable chair includes a flexible chair surface and a chair frame, where the chair frame is the foldable support described above, and the second connecting block and the third connecting block are symmetrically arranged in front of the first connecting block; the lower support leg assembly includes two front support legs and two rear support legs, and the upper support rod assembly includes two front support rods and two rear support rods, where the two front support legs are respectively inserted into lower ends of the second connecting block and the third connecting block, the two rear support legs are respectively inserted into both sides of a lower end of the first connecting block, the two front support rods are respectively inserted into upper ends of the second connecting block and the third connecting block, the two rear support rods are respectively inserted into both sides of an upper end of the first connecting block, and lengths of the two rear support rods are greater than those of the two front support rods; the flexible chair surface rises from front to back, two first plug-in sleeves are arranged on both sides of a front end of the flexible chair surface, and two second plug-in sleeves are arranged on both sides of a rear end of the flexible chair surface, where the two second plug-in sleeves are higher than the two first plug-in sleeves, upper ends of the two front support rods are respectively inserted into the two first plug-in sleeves, and upper ends of the two rear support rods are respectively inserted into the two second plug-in sleeves.

A foldable chair includes a flexible chair surface and a chair frame, where the chair frame is the foldable support described above, and the second connecting block and the third connecting block are symmetrically arranged behind the first connecting block; the lower support leg assembly includes two front support legs and two rear support legs, and the upper support rod assembly includes two front support rods and two rear support rods, where the two front support legs are respectively inserted into both sides of a lower end of the first connecting block, the two rear support legs are respectively inserted into lower ends of the second connecting block and the third connecting block, the two front support rods are respectively inserted into both sides of an upper end of the first connecting block, the two rear support rods are respectively inserted into upper ends of the second connecting block and the third connecting block, and lengths of the two rear support rods are greater than those of the two front support rods; and the flexible chair surface rises from front to back, two first plug-in sleeves are arranged on both sides of a front end of the flexible chair surface, and two second plug-in sleeves are arranged on both sides of a rear end of the flexible chair surface, where the two second plug-in sleeves are higher than the two first plug-in sleeves, upper ends of the two front support rods are respectively inserted into the two first plug-in sleeves, and upper ends of the two rear support rods are respectively inserted into the two second plug-in sleeves.

A foldable table includes a tabletop, two support beams, and a support frame, where the two support beams are arranged in parallel on both sides of a lower end of the tabletop from front to back to support the tabletop, and the support frame is the foldable support described above; the second connecting block and the third connecting block are symmetrically arranged on a left or right side of the first connecting block; the lower support leg assembly includes two first support legs that are respectively inserted into both sides of the lower end of the first connecting block and two second support legs that are respectively inserted into the lower ends of the second connecting block and the third connecting block; the upper support rod assembly includes two first support rods that are respectively inserted into both sides of the upper end of the first connecting block and two second support rods that are respectively inserted into the upper ends of the second connecting block and the third connecting block, where a snap-fit piece is arranged at an upper end of each of the two first support rods and the two second support rods, and the two first support rods and the two second support rods are snap-fitted into corresponding end portions of the two support beams through their respective snap-fit pieces.

Compared with the prior art, the present disclosure has the beneficial effects as follows:

In the present disclosure, to facilitate the connection between the second end of the third connecting rod and the third connecting block, a locking structure with the advantages such as a simple structure, easy locking, high reliability, and convenient unlocking. Specifically, in an aspect, the second end of the third connecting rod enters the connecting groove of the third connecting block and is automatically snap-fitted into the locking hole by means of the limiting elastic column, which achieves easy, highly reliable and stable locking with less possibility of loosening; in a further aspect, the unlocking button in linked connection with the limiting elastic column is pressed to disengage the limiting elastic column from the locking hole, which facilitates the pressing of the unlocking button for unlocking and enhances the convenience of unlocking; and in yet another aspect, the entire locking structure is very simple with few parts and components make it more convenient to manufacture and install locking components while reducing manufacturing costs of the locking components.

The present disclosure will be further described in detail below with reference to the examples shown in the accompanying drawings.

As illustrated in, in an example of the present disclosure, there is provided a foldable support, and the foldable support includes a foldable triangular frame, a lower support leg assemblythat is detachably connected to the triangular frame, and an upper support rod assemblythat is detachably connected to the triangular frame.

The triangular frameincludes a first connecting block, a second connecting block, a third connecting block, a first connecting rod, a second connecting rod, and a third connecting rod. The second connecting blockand the third connecting blockare symmetrically arranged on one side of the first connecting block, one end of the first connecting rodand one end of the second connecting rodare rotatably connected to the first connecting blockrespectively, and the other ends of the first connecting rodand the second connecting rodare fixedly connected to the second connecting blockand the third connecting blockrespectively. The third connecting rodis provided with a first endand a second endopposite to the first end, the first endof the third connecting rodis rotatably connected to the second connecting block, the second endof the third connecting rodis provided with a limiting elastic columnand an unlocking button, the third connecting blockis provided with a connecting groove, a locking holeis formed in a side wall of the connecting groove, and the second endof the third connecting rodenters the connecting grooveand is snap-fitted into the locking holeby means of the limiting elastic column, thereby being tightly locked in the third connecting block.

The unlocking buttonis in linked connection with the limiting elastic column, and the unlocking buttonis pressed to disengage the limiting elastic columnfrom the locking hole, such that the second endof the third connecting rodis unlocked in the third connecting block. In this case, the second endof the third connecting rodcan be detached from the connecting groove, and the triangular frameis folded. Specifically, when the second endof the third connecting rodis unlocked, the second endof the third connecting rod, with the first endas a fulcrum, can rotate toward the first connecting blockto detach from the connecting groove, and the first connecting rodand the second connecting rod, with the first connecting blockas a fulcrum, rotate toward each other to achieve folding of the triangular frame.

In a preferred example of the present disclosure, in order to avoid interference by the first connecting rodand the second connecting rodwhen the third connecting rodrotates, a plane of the third connecting rodis lower than planes of the first connecting rodand the second connecting rod.

In a preferred example of the present disclosure, the unlocking buttonis arranged at a position of the second endof the third connecting rodthat is offset from the third connecting block, such that when the second endof the third connecting rodenters the connecting groove, the unlocking buttonis located at a certain distance from an inner side of the third connecting block. Such design can prevent the third connecting blockfrom interfering with pressing of the unlocking buttonfor unlocking.

In a preferred example of the present disclosure, a spring plateis arranged inside the second endof the third connecting rod, one end of the unlocking buttonand one end of the limiting elastic columnrespectively extend into inside of the second endof the third connecting rodand abut against the spring plate, the other ends of the unlocking buttonand the limiting elastic column, under the action of an elastic force from the spring plate, are exposed outside the second endof the third connecting rod, and a peripheral wall of the second endof the third connecting rodis provided with a first holefor exposing the unlocking buttonand a second holefor exposing the limiting elastic column. That is, in this preferred example, the unlocking buttonand the limiting elastic columnare in linked connection as they respectively abut against with the spring plate, one exposed end of the limiting elastic columncan be snap-fitted into the locking holein case of locking, and one exposed end of the unlocking buttonis configured for pressing by a user for unlocking.

Further, the spring plateis curved and includes a first end armand a second end armthat are arranged opposite to each other, a length of the second end armis greater than that of the first end arm, the first end armabuts against a side of the inside of the second endof the third connecting rodthat is opposite to the first holeand the second hole, the second end armabuts against a same side of the inside of the second endof the third connecting rodwhere the first holeand the second holeare located, and extending ends of the unlocking buttonand the limiting elastic columnabut against the second end armrespectively.

In a preferred example of the present disclosure, the unlocking buttonand the limiting elastic columnare linearly spaced apart from each other at the second endof the third connecting rod, the unlocking buttonis arranged closer to an inner side of the second endof the third connecting rod, and the limiting elastic columnis arranged closer to an outer side of the second endof the third connecting rod. Such arrangement facilitates the linked connection between the unlocking buttonand the limiting elastic columnthrough the spring plate.

In a preferred example of the present disclosure, the locking holeis a through hole formed in an upper side wall of the connecting groove, and correspondingly, the unlocking buttonand the limiting elastic columnare both arranged on an upper side of the second endof the third connecting rod. The locking holeis arranged to be a through hole, which helps the limiting elastic columnto penetrate through an entire upper side wall of the connecting grooveduring the locking, thereby enhancing reliability and stability of the locking. The unlocking buttonis arranged on the upper side of the second endof the third connecting rod, which facilitates the pressing of the unlocking buttonfor unlocking. The limiting elastic columnand the locking holeare also arranged on the upper side of the second endof the third connecting rod, which facilitates observation of fit between the limiting elastic columnand the locking hole.

As described above, to store the foldable support, in an aspect, the triangular framecan be folded, and in a further aspect, the lower support leg assemblyand the upper support rod assemblycan be disassembled from the triangular frameand stored together with the folded triangular frame, which reduces a storage volume of the foldable support and facilitates carrying and storage.

As illustrated in, in an example of the present disclosure, there is provided a foldable chair of a certain structure, and the foldable chair includes a flexible chair surfaceand a chair frame, where the chair frameis the foldable support described above. The second connecting blockand the third connecting blockare symmetrically arranged in front of the first connecting block. The lower support leg assemblyincludes two front support legsand two rear support legs, and the upper support rod assemblyincludes two front support rodsand two rear support rods, where the two front support legsare respectively inserted into lower ends of the second connecting blockand the third connecting block, the two rear support legsare respectively inserted into both sides of a lower end of the first connecting block, the two front support rodsare respectively inserted into upper ends of the second connecting blockand the third connecting block, the two rear support rodsare respectively inserted into both sides of an upper end of the first connecting block, and lengths of the two rear support rodsare greater than those of the two front support rods. The flexible chair surfacerises from front to back, two first plug-in sleevesare arranged on both sides of a front end of the flexible chair surface, and two second plug-in sleevesare arranged on both sides of a rear end of the flexible chair surface, where the two second plug-in sleevesare higher than the two first plug-in sleeves, upper ends of the two front support rodsare respectively inserted into the two first plug-in sleeves, and upper ends of the two rear support rodsare respectively inserted into the two second plug-in sleeves. To store the foldable chair, in an aspect, the flexible chair surfacecan be removed from the chair framefor rolling up, and in a further aspect, the chair framecan be folded, which reduces a storage volume of the foldable chair and facilitates carrying and storage.

As illustrated in, in an example of the present disclosure, there is provided a foldable chair of another structure, and the foldable chair includes a flexible chair surfaceand a chair frame, where the chair frameis the foldable support described above. The second connecting blockand the third connecting blockare symmetrically arranged behind the first connecting block. The lower support leg assemblyincludes two front support legsand two rear support legs, and the upper support rod assemblyincludes two front support rodsand two rear support rods, where the two front support legsare respectively inserted into both sides of a lower end of the first connecting block, the two rear support legsare respectively inserted into lower ends of the second connecting blockand the third connecting block, the two front support rodsare respectively inserted into both sides of an upper end of the first connecting block, the two rear support rodsare respectively inserted into upper ends of the second connecting blockand the third connecting block, and lengths of the two rear support rodsare greater than those of the two front support rods. The flexible chair surfacerises from front to back, two first plug-in sleevesare arranged on both sides of a front end of the flexible chair surface, and two second plug-in sleevesare arranged on both sides of a rear end of the flexible chair surface, where the two second plug-in sleevesare higher than the two first plug-in sleeves, upper ends of the two front support rodsare respectively inserted into the two first plug-in sleeves, and upper ends of the two rear support rodsare respectively inserted into the two second plug-in sleeves. To store the foldable chair, in an aspect, the flexible chair surfacecan be removed from the chair framefor rolling up, and in a further aspect, the chair framecan be folded, which reduces a storage volume of the foldable chair and facilitates carrying and storage.

As illustrated in, in an example of the present disclosure, there is provided a foldable table, and the foldable table includes a tabletop, two support beams, and a support frame, where the two support beamsare arranged in parallel on both sides of a lower end of the tabletopfrom front to back to support the tabletop. The tabletopis formed by splicing together a plurality of foldable tabletop units in a length direction, either of the two support beamsis formed by splicing together at least two detachable rod units, and the support frameis the foldable support described above. The second connecting blockand the third connecting blockare symmetrically arranged on a left or right side of the first connecting block. The lower support leg assemblyincludes two first support legsthat are respectively inserted into both sides of the lower end of the first connecting blockand two second support legsthat are respectively inserted into the lower ends of the second connecting blockand the third connecting block. The upper support rod assemblyincludes two first support rodsthat are respectively inserted into both sides of the upper end of the first connecting blockand two second support rodsthat are respectively inserted into the upper ends of the second connecting blockand the third connecting block, where a snap-fit pieceis arranged at an upper end of each of the two first support rodsand the two second support rods, and the two first support rodsand the two second support rodsare snap-fitted into corresponding end portions of the two support beamsthrough their respective snap-fit pieces. To store the foldable table, in an aspect, the tabletopcan be disassembled from the two support beamsfor folding, in a further aspect, the two support beamscan be disassembled from the support framefor separate storage, and in yet another aspect, the support frameitself can also be folded, which reduces a storage volume of the foldable table and facilitates carrying and storage.

The above described examples are merely preferred examples of the present disclosure, and the scope of implementations of the present disclosure shall not be defined thereby, that is, all simple equivalent changes and modifications made with respect to the patent scope and the description of the present disclosure shall fall within the scope of the present disclosure.