Novel folding support

Abstract

The utility model discloses a novel folding support. Comprising a first connecting piece, a second connecting piece, a fourth connecting piece and a third connecting piece, wherein the second connecting piece is rotationally connected with the end part of the first connecting piece through a second adapter piece; the fourth connecting piece is rotationally connected with the other end of the second connecting piece through a third adapter piece; one end of the third connecting piece is rotationally connected onto the second adapter piece and the other end of the third connecting piece is rotationally connected onto the fourth connecting piece through a first adapter piece; a kidney-shaped hole is formed in the second connecting piece, the second adapting piece sequentially penetrates through the third connecting piece and the kidney-shaped hole to be connected with the first connecting piece in an adapting mode, a first adapting limiting structure is arranged at the adapting position of the first connecting piece and the second connecting piece, and a second adapting limiting structure is arranged at the adapting position of the second connecting piece and the fourth connecting piece. The folding support can effectively avoid the phenomenon that any side of the folding support is suddenly folded due to acting force, and is good in concealment after being unfolded, simple in structure, easy and convenient to install and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the field of machinery manufacturing, in particular to a novel folding bracket. Background Art

[0002] At present, in order to facilitate storage and save volume space, tables, chairs, beds and other items are often connected through various folding mechanisms, and the items are folded and retracted through the folding mechanisms. Moreover, the folding bracket generally adopts the principle of joints and forms a U-shaped or n-shaped storage structure after folding, so that it is convenient and practical, and the items are easy to carry and store, bringing convenience to people's lives. However, the existing folding structure generally adopts a structure that can be folded separately on both sides, resulting in its own self-locking function, and it is very easy to fold when subjected to external forces, resulting in the folding connection of the item bulging to one side. When it acts on the bottom of the panel of a dining table, coffee table, etc., it is very easy to cause the placed items to turn over. Moreover, the folding bracket with a joint design generally has an inclined support arm, which forms a triangular structure for support after being unfolded, resulting in a downward convex phenomenon after being unfolded, affecting the concealment. Summary of the Invention

[0003] In order to solve certain or some technical problems existing in the prior art, the purpose of this application is to provide a novel folding bracket, which can effectively avoid the sudden folding of the folding bracket due to the action of force on any side, has good concealment after being unfolded, and has a simple structure, is easy to install, and has a low manufacturing cost.

[0004] In order to solve the above-mentioned existing technical problems, the purpose of the present application is achieved by adopting the following technical solutions: a new folding bracket, including a first connecting piece, a second connecting piece connected to the end of the first connecting piece through a second adapter, a fourth connecting piece connected to the other end of the second connecting piece through a third adapter, and a third connecting piece with one end connected to the second adapter and the other end connected to the fourth connecting piece through the first adapter, the second connecting piece is provided with a waist-shaped hole, the second adapter passes through the third connecting piece, the waist-shaped hole and the first connecting piece in sequence, a first transfer limiting structure is provided at the transition between the first connecting piece and the second connecting piece, and a second transfer limiting structure is provided at the transition between the second connecting piece and the fourth connecting piece. When the folding bracket is unfolded, the first transfer limiting structure limits the transition between the first connecting piece and the second connecting piece, and the second transfer limiting structure limits the transition between the second connecting piece and the fourth connecting piece. The second transfer piece on the third connecting piece slides to the bottom end in the waist-shaped hole, so that the support strength of the unfolded folding bracket is high, which can effectively prevent the folding bracket from suddenly folding due to the force on any side, and has good concealment after unfolding; when the folding bracket is folded, the second transfer piece on the third connecting piece slides to the top end in the waist-shaped hole, and the second connecting piece, the third connecting piece and the fourth connecting piece form a triangular structure to achieve self-locking, with a simple structure, easy installation and low manufacturing cost.

[0005] Preferably, the first transfer limiting structure includes a first limiting post provided on the first connecting piece, and a first limiting protrusion provided on the second connecting piece and cooperating with the first limiting post. When the folding bracket is unfolded, the first limiting protrusion cooperates with the first limiting post to limit the position and cannot be further turned over, so that the support strength of the unfolded folding bracket is high.

[0006] Preferably, the first transfer limiting structure also includes a second limiting post provided at the back of the second connecting piece, a fan-shaped limiting piece provided at the end of the first connecting piece and slidingly cooperating with the outer edge of the second limiting post, and a second limiting protrusion and a limiting card slot cooperating with the second limiting post for limiting respectively at both ends of the fan-shaped limiting piece. When the folding bracket is unfolded, the second limiting post slides along the edge of the fan-shaped limiting piece and finally snaps into the limiting card slot, cooperating with the first transfer limiting structure to increase the supporting strength of the folding bracket; when the folding bracket is folded, the second limiting post slides along the edge of the fan-shaped limiting piece, and finally the second limiting protrusion cooperates with the second limiting post for limiting, so that the second connecting piece, the third connecting piece and the fourth connecting piece form a triangular structure with stable structure.

[0007] Preferably, the fan-shaped limit plate is provided with a first transfer hole, and the second transfer piece passes through the third connecting plate, the waist-shaped hole and the first transfer hole in sequence. While the second transfer piece transfers the third connecting plate and the first transfer hole, it can move up and down in the waist-shaped hole, so as to realize the switching between unfolding and folding of the folding bracket.

[0008] Preferably, the second transfer limiting structure includes an arc-shaped edge provided at the end of the second connecting piece and mating and sliding with the outer edge of the first transfer member, and a third limiting protrusion provided at the tail of the arc-shaped edge and mating and limiting with the first transfer member. When the folding bracket is unfolded, the first transfer member slides along the edge of the arc-shaped edge, and finally the third limiting protrusion mates and limits with the first transfer member, making it impossible to continue flipping, so that the unfolded folding bracket has high support strength.

[0009] Preferably, a second transfer hole is provided on the second connecting piece, a third transfer hole is provided on the fourth connecting piece, and the third transfer member passes through the second transfer hole and the third transfer hole for transfer. The structure is simple, the rotation is convenient, and the manufacturing cost is low.

[0010] Preferably, a fourth transfer hole is provided on the fourth connecting piece, and the first transfer member passes through the third connecting piece and the fourth transfer hole for transfer. The structure is simple, the rotation is convenient, and the manufacturing cost is low.

[0011] Preferably, a plurality of assembly holes for connecting with an external folding member are provided on both the first connecting piece and the fourth connecting piece. It is convenient to install with the external folding member, so as to realize the switching between the unfolding and folding of the external folding member.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] For the novel folding bracket adopting the above technical scheme, when the folding bracket is unfolded, the first transfer limiting structure limits the transfer position between the first connecting piece and the second connecting piece, the second transfer limiting structure limits the transfer position between the second connecting piece and the fourth connecting piece, and the second transfer member on the third connecting piece slides to the bottom end in the waist-shaped hole, so that the unfolded folding bracket has high support strength, can effectively avoid the phenomenon that the folding bracket suddenly folds due to the action force on any side, and has good concealment after unfolding; when the folding bracket is folded, the second transfer member on the third connecting piece slides to the top end in the waist-shaped hole, and the second connecting piece, the third connecting piece and the fourth connecting piece form a triangular structure to realize self-locking. The structure is simple, the installation is convenient, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model when unfolded;

[0015] Figure 2 is a schematic structural diagram of the present utility model when folded;

[0016] Figure 3 is a schematic structural diagram of the first connecting piece in the present utility model;

[0017] Figure 4 is a schematic structural diagram of the second connecting piece in the present utility model;

[0018] Figure 5 Structural schematic diagram of the fourth connecting piece in the present utility model;

[0019] In the figure: 1. First connecting piece; 11. First transfer hole; 12. First limiting post; 13. Sector-shaped limiting piece; 14. Second limiting bump; 15. Limiting card slot; 2. Second connecting piece; 21. First limiting bump; 22. Waist-shaped hole; 23. Arc edge; 24. Second limiting post; 25. Second transfer hole; 26. Third limiting bump; 3. Third connecting piece; 4. Fourth connecting piece; 41. Third transfer hole; 42. Fourth transfer hole; 5. First transfer piece; 6. Second transfer piece; 7. Third transfer piece; 8. Assembly hole. Specific embodiments

[0020] Next, in combination with the accompanying drawings and specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0022] Such as Figures 1 to 5As shown in the figure, the new folding bracket includes a first connecting piece 1, a second connecting piece 2 whose end is connected to the first connecting piece 1 through a second adapter 6, a fourth connecting piece 4 whose other end is connected to the second connecting piece 2 through a third adapter 7, and a third connecting piece 3 whose one end is connected to the second adapter 6 and the other end is connected to the fourth connecting piece 4 through a first adapter 5. A waist-shaped hole 22 is provided on the second connecting piece 2. The second adapter 6 passes through the third connecting piece 3, the waist-shaped hole 22 and the first connecting piece 1 in sequence for connection. A first connection limit structure is provided at the connection between the first connecting piece 1 and the second connecting piece 2, and a second connection limit structure is provided at the connection between the second connecting piece 2 and the fourth connecting piece 4. When the folding bracket is unfolded, the first connection limit structure limits the connection between the first connecting piece 1 and the second connecting piece 2, and the second connection limit structure limits the connection between the second connecting piece 2 and the fourth connecting piece 4. The second adapter 6 on the third connecting piece 3 slides to the bottom in the waist-shaped hole 22, so that the unfolded folding bracket has high support strength, can effectively avoid the sudden folding of the folding bracket due to the force on any side, and has good concealment after unfolding; when the folding bracket is folded, the second adapter 6 on the third connecting piece 3 slides to the top in the waist-shaped hole 22, and the second connecting piece 2, the third connecting piece 3 and the fourth connecting piece 4 form a triangular structure to achieve self-locking. The structure is simple, the installation is convenient, and the manufacturing cost is low.

[0023] The third adapter 7 is a rivet, and the length of the rivet is greater than the thickness of the second connecting piece 2 plus the fourth connecting piece 4 to ensure the normal connection; the first adapter 5 and the second adapter 6 both use the same riveting post, and the length of the riveting post is greater than the thickness of the first connecting piece 1 plus the second connecting piece 2 plus the third connecting piece 3 to ensure the normal connection.

[0024] The first connection limit structure includes a first limit post 12 provided on the first connecting piece 1 and a first limit convex block 21 provided on the second connecting piece 2 and cooperating with the first limit post 12. When the folding bracket is unfolded, the first limit convex block 21 cooperates with the first limit post 12 for limiting and cannot continue to flip, so that the unfolded folding bracket has high support strength.

[0025] The first transfer limiting structure further includes a second limiting post 24 provided on the back of the second connecting piece 2, and a sector-shaped limiting piece 13 provided at the end of the first connecting piece 1 and slidingly engaged with the outer edge of the second limiting post 24. Second limiting bumps 14 and limiting slots 15 for cooperating with the second limiting post 24 are respectively provided at both ends of the sector-shaped limiting piece 13. When the folding bracket is unfolded, the second limiting post 24 slides along the edge of the sector-shaped limiting piece 13 and finally snaps into the limiting slot 15, cooperating with the first transfer limiting structure to increase the support strength of the folding bracket; when the folding bracket is folded, the second limiting post 24 slides along the edge of the sector-shaped limiting piece 13, and finally the second limiting bump 14 cooperates with the second limiting post 24 for limiting, so that the second connecting piece 2, the third connecting piece 3 and the fourth connecting piece 4 form a triangular structure, and the structure is stable.

[0026] A first transfer hole 11 is provided on the sector-shaped limiting piece 13, and the second transfer member 6 sequentially passes through the third connecting piece 3, the waist-shaped hole 22 and the first transfer hole 11 for transfer. While the second transfer member 6 transfers the third connecting piece 3 and the first transfer hole 11, it can move up and down in the waist-shaped hole 22, so as to realize the switching between the unfolding and folding of the folding bracket.

[0027] The second transfer limiting structure includes an arc-shaped edge 23 provided at the end of the second connecting piece 2 and slidingly engaged with the outer edge of the first transfer member 5, and a third limiting bump 26 provided at the tail of the arc-shaped edge 23 and cooperating with the first transfer member 5 for limiting. When the folding bracket is unfolded, the first transfer member 5 slides along the edge of the arc-shaped edge 23, and finally the third limiting bump 26 cooperates with the first transfer member 5 for limiting and cannot be further flipped, so that the support strength of the unfolded folding bracket is high.

[0028] A second transfer hole 25 is provided on the second connecting piece 2, and a third transfer hole 41 is provided on the fourth connecting piece 4. The third transfer member 7 passes through the second transfer hole 25 and the third transfer hole 41 for transfer. The structure is simple, the rotation is convenient, and the manufacturing cost is low. A fourth transfer hole 42 is provided on the fourth connecting piece 4, and the first transfer member 5 passes through the third connecting piece 3 and the fourth transfer hole 42 for transfer. The structure is simple, the rotation is convenient, and the manufacturing cost is low.

[0029] A plurality of assembly holes 8 for connecting with an external folding member are provided on both the first connecting piece 1 and the fourth connecting piece 4. It is convenient for the installation of the external folding member, so as to realize the switching between the unfolding and folding of the external folding member.

[0030] The above embodiments are only the preferred embodiments of the present application, and the protection scope of the present application cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present application belong to the protection scope required by the present application.

Claims

1. A novel folding bracket, characterized in that: It includes a first connecting piece (1), a second connecting piece (2) whose end is connected to the first connecting piece (1) through a second adapter (6), a fourth connecting piece (4) whose other end is connected to the second connecting piece (2) through a third adapter (7), and a third connecting piece (3) with one end connected to the second adapter (6) and the other end connected to the fourth connecting piece (4) through a first adapter (5). An oblong hole (22) is provided on the second connecting piece (2). The second adapter (6) passes through the third connecting piece (3), the oblong hole (22) and the first connecting piece (1) in sequence for connection. A first connection limit structure is provided at the connection between the first connecting piece (1) and the second connecting piece (2), and a second connection limit structure is provided at the connection between the second connecting piece (2) and the fourth connecting piece (4).

2. The novel folding bracket according to claim 1, wherein: The first connection limit structure includes a first limit post (12) provided on the first connecting piece (1) and a first limit convex block (21) provided on the second connecting piece (2) and cooperating with the first limit post (12).

3. The novel folding bracket according to claim 2, wherein: The first connection limit structure further includes a second limit post (24) provided on the back of the second connecting piece (2) and a fan-shaped limit piece (13) provided at the end of the first connecting piece (1) and slidingly cooperating with the outer edge of the second limit post (24). Second limit convex blocks (14) and limit card slots (15) for cooperating with the second limit post (24) are respectively provided at both ends of the fan-shaped limit piece (13).

4. The novel folding bracket according to claim 3, wherein: A first connection hole (11) is provided on the fan-shaped limit piece (13). The second adapter (6) passes through the third connecting piece (3), the oblong hole (22) and the first connection hole (11) in sequence for connection.

5. The novel folding bracket according to claim 1, characterized in that: The second connection limit structure includes an arc-shaped edge (23) provided at the end of the second connecting piece (2) and slidingly cooperating with the outer edge of the first adapter (5), and a third limit convex block (26) provided at the tail of the arc-shaped edge (23) and cooperating with the first adapter (5) for limiting.

6. The novel folding bracket according to claim 5, wherein: A second connection hole (25) is provided on the second connecting piece (2), and a third connection hole (41) is provided on the fourth connecting piece (4). The third adapter (7) passes through the second connection hole (25) and the third connection hole (41) for connection.

7. The novel folding bracket according to claim 6, characterized in that: A fourth connection hole (42) is provided on the fourth connecting piece (4). The first adapter (5) passes through the third connecting piece (3) and the fourth connection hole (42) for connection.

8. The novel folding bracket according to claim 1, characterized in that: A number of assembly holes (8) for connecting to an external folding piece are provided on both the first connecting piece (1) and the fourth connecting piece (4).

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