Buckle structure for table and chair

Abstract

The utility model belongs to the technical field of tables and chairs, particularly relates to a buckle structure for tables and chairs, and aims to solve the problems that when an existing folding table and chair is used, due to the fact that a clamping limiting mechanism for supporting legs does not exist, the instability phenomenon is prone to occurring when the table and chair is placed, and the use of the table and chair is affected. The number of the supporting legs is four, the four supporting legs are symmetrically arranged, the four supporting legs are rotatably installed at the bottom of the table board, the two supporting legs on the same side are rotatably connected, the same positioning shaft tube is rotatably connected between the four supporting legs, two positioning plates are fixedly installed on the positioning shaft tube, and a pull rod is slidably connected into the positioning shaft tube; and the clamping mechanism is mounted on the positioning plate. The folding table is simple in structure and convenient to use, angle clamping and fixing can be conveniently carried out on the folding table, stable placing and fixing can be conveniently carried out, and people can conveniently use the folding table.

Description

Technical Field

[0001] This utility model relates to the field of table and chair technology, and in particular to a snap-fit ​​structure for tables and chairs. Background Technology

[0002] In existing furniture manufacturing technology, foldable structures are widely used. Folding tables and chairs are favored by consumers because they are easy to move and take up less space, making them suitable for home, office, and camping use. However, their foldable support structure lacks sufficient sturdiness. Often, when the table and chair are under stress, uneven stress on different parts can cause deformation and damage to the support legs or other components. There are two most commonly used folding structures for folding tables and chairs. One type has a support frame composed of four non-intersecting support legs, each of which is connected to the tabletop.

[0003] Existing folding tables and chairs are prone to instability when placed because they lack a locking and limiting mechanism for the support legs, which affects their usability. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that existing folding tables and chairs are prone to instability when placed due to the lack of a locking and limiting mechanism for the supporting legs, which affects the use of the tables and chairs. Therefore, a buckle structure for tables and chairs is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The snap-fit ​​structure for tables and chairs includes:

[0007] There are two tabletops arranged symmetrically.

[0008] The support legs are symmetrically arranged in four parts, and the four support legs are rotatably installed on the bottom of the table. Two support legs on the same side are rotatably connected, and the four support legs are rotatably connected to the same positioning shaft tube. Two positioning plates are fixedly installed on the positioning shaft tube, and a pull rod is slidably connected inside the positioning shaft tube.

[0009] A clamping mechanism is mounted on the positioning plate and is connected to the pull rod drive.

[0010] A positioning mechanism is installed on the pull rod.

[0011] Furthermore, the mounting mechanism includes two mounting plates, both of which are slidably connected to corresponding positioning plates, and the mounting plates cooperate with the corresponding two support legs.

[0012] Furthermore, a pressure plate is fixedly installed at one end of the pull rod, and a push plate is installed on the pull rod. The pressure plate and the push plate are respectively fixedly connected to the corresponding clamping plates, and a return spring is fixedly installed on one side of the pressure plate. One end of the return spring is fixedly connected to the corresponding positioning plate.

[0013] Furthermore, the positioning shaft tube has two sliding holes, and connecting blocks are slidably connected to the inner walls of the sliding holes. The push plate has movable holes, which are slidably connected to the positioning shaft tube, and the two connecting blocks are fixedly connected to the inner walls of the movable holes.

[0014] Furthermore, the positioning mechanism includes a rotating plate, which is rotatably mounted on one end of the pull rod, and a baffle is fixedly mounted on one end of the positioning shaft tube, with the baffle and the rotating plate cooperating with each other.

[0015] Furthermore, a handle is fixedly installed on the top of the rotating plate, and a right-angle plate is fixedly installed on the bottom of the rotating plate, with the right-angle plate cooperating with the baffle.

[0016] Furthermore, the support leg is provided with an L-shaped bend, which cooperates with the two tabletops.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This design incorporates a rotatable connection between the positioning shaft tube and the four support legs, and the pull rod positions the four support legs via a locking plate. This allows for angle fixation when the four support legs are placed, preventing wobbling, and also provides secure storage during folding, making them easy to retrieve.

[0019] This utility model has a simple structure and is easy to use. It can easily fix the folding table at an angle, thus facilitating stable placement and fixation, making it convenient for people to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the snap-fit ​​structure for tables and chairs proposed in this utility model;

[0021] Figure 2 This is a top view of the positioning shaft tube and positioning plate of the snap-fit ​​structure for tables and chairs proposed in this utility model.

[0022] Figure 3 This is a side cross-sectional view of the push plate structure of the snap-fit ​​structure for tables and chairs proposed in this utility model.

[0023] In the diagram: 1. Tabletop; 2. Support leg; 3. Positioning shaft tube; 4. Pull rod; 5. Baffle; 6. Right angle plate; 7. Handle; 8. Rotating plate; 9. Sliding hole; 10. Push plate; 11. Connecting block; 12. Movable hole; 13. Clamping plate; 14. Pressure plate; 15. Return spring; 16. Positioning plate; 17. L-shaped bend. Detailed Implementation

[0024] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this embodiment, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-3 The snap-fit ​​structure for tables and chairs includes:

[0027] Tabletop 1, there are two symmetrically arranged;

[0028] Support legs 2, four in total, are symmetrically arranged and are rotatably mounted on the bottom of the tabletop 1. Two support legs 2 on the same side are rotatably connected, and the four support legs 2 are rotatably connected by the same positioning shaft tube 3. Two positioning plates 16 are fixedly installed on the positioning shaft tube 3, and a pull rod 4 is slidably connected inside the positioning shaft tube 3.

[0029] The clamping mechanism is installed on the positioning plate 16 and is connected to the pull rod 4 for transmission.

[0030] The positioning mechanism is installed on the pull rod 4.

[0031] In this embodiment, the clamping mechanism includes two clamping plates 13, both of which are slidably connected to corresponding positioning plates 16. The clamping plates 13 cooperate with the corresponding two support legs 2. A pressure plate 14 is fixedly installed on one end of the pull rod 4, and a push plate 10 is installed on the pull rod 4. The pressure plate 14 and the push plate 10 are respectively fixedly connected to the corresponding clamping plates 13. A return spring 15 is fixedly installed on one side of the pressure plate 14, and one end of the return spring 15 is fixedly connected to the corresponding positioning plate 16. Two sliding holes 9 are opened on the positioning shaft tube 3, and a connecting block 11 is slidably connected to the inner wall of the sliding hole 9. The 10 has a movable hole 12, which is slidably connected to the positioning shaft tube 3. Two connecting blocks 11 are fixedly connected to the inner wall of the movable hole 12. The positioning shaft tube 3 is rotatably connected to the four support legs 2, thereby positioning the corresponding two support legs 2. At the same time, the moving pull rod 4 drives the pressure plate 14 to move, and the pull rod 4 drives the push plate 10 to move through the connecting block 11. The moving pressure plate 14 and push plate 10 can drive the clamping plate 13 to clamp and fix the corresponding two support legs 2. At the same time, the reset spring 15 can reset the pull rod 4 and push it in the opposite direction.

[0032] In this embodiment, the positioning mechanism includes a rotating plate 8, which is rotatably mounted on one end of the pull rod 4. A baffle 5 is fixedly mounted on one end of the positioning shaft tube 3. The baffle 5 and the rotating plate 8 cooperate with each other. A handle 7 is fixedly mounted on the top of the rotating plate 8, and a right-angle plate 6 is fixedly mounted on the bottom of the rotating plate 8. The right-angle plate 6 and the baffle 5 cooperate with each other. An L-shaped bend 17 is provided on the support leg 2. The L-shaped bend 17 cooperates with the two tabletops 1. The handle 7 can push the rotating plate 8 to change its angle. The rotating plate 8 actuates the right-angle plate 6 to change its angle. When the right-angle plate 6 contacts the baffle 5, the angle of the rotating plate 8 can be positioned, thereby positioning the position of the pull rod 4. At the same time, the diameter change when the angle of the rotating plate 8 changes will push the pull rod 4 to move.

[0033] Working principle: During operation, handle 7 can push rotating plate 8 to change angle. The diameter change of rotating plate 8 during angle change pushes pull rod 4 to move. Rotating plate 8 actuates right angle plate 6 to change angle, thereby positioning pull rod 4. The moving pull rod 4 drives pressure plate 14 to move, and pull rod 4 drives push plate 10 to move through connecting block 11. The moving pressure plate 14 and push plate 10 can drive clamping plate 13 to lock and fix the corresponding two support legs 2. At the same time, the setting of return spring 15 can reset and push pull rod 4 in the opposite direction. The setting of L-shaped bend 17 on support leg 2 can facilitate the storage and placement of table board 1.

[0034] Example 2

[0035] The difference between this embodiment and Embodiment 1 is that a rubber pad is installed at the bottom of the support leg 2. The rubber pad can help to cushion the support leg 2 and prevent damage to the ground. All structures in this application can be selected in terms of material and length according to actual use. The attached drawings are schematic structural diagrams, and the actual dimensions can be adjusted appropriately.

[0036] The above description is only a preferred embodiment of this practice, but the scope of protection of this embodiment is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this embodiment, based on the technical solution and the inventive concept of this embodiment, should be covered within the scope of protection of this embodiment.

Claims

1. A snap structure for a table chair, characterized by, include: Tabletop (1), two are symmetrically arranged; Support legs (2) are symmetrically arranged in four, and the four support legs (2) are rotatably installed on the bottom of the table (1). Two support legs (2) on the same side are rotatably connected, and the four support legs (2) are rotatably connected by the same positioning shaft tube (3). Two positioning plates (16) are fixedly installed on the positioning shaft tube (3), and a pull rod (4) is slidably connected inside the positioning shaft tube (3). The clamping mechanism is installed on the positioning plate (16) and is connected to the pull rod (4) for transmission. The positioning mechanism is installed on the pull rod (4).

2. The buckle structure for a table chair according to claim 1, wherein The mounting mechanism includes two mounting plates (13), both of which are slidably connected to the corresponding positioning plates (16), and the mounting plates (13) cooperate with the corresponding two support legs (2).

3. The buckle structure for a table chair according to claim 2, wherein A pressure plate (14) is fixedly installed at one end of the pull rod (4), and a push plate (10) is installed on the pull rod (4). The pressure plate (14) and the push plate (10) are respectively fixedly connected to the corresponding card plate (13). A reset spring (15) is fixedly installed on one side of the pressure plate (14), and one end of the reset spring (15) is fixedly connected to the corresponding positioning plate (16).

4. The buckle structure for a table chair according to claim 3, wherein The positioning shaft tube (3) has two sliding holes (9), and a connecting block (11) is slidably connected to the inner wall of the sliding hole (9). The push plate (10) has a movable hole (12), which is slidably connected to the positioning shaft tube (3). The two connecting blocks (11) are fixedly connected to the inner wall of the movable hole (12).

5. The buckle structure for a table chair according to claim 1, wherein The positioning mechanism includes a rotating plate (8), which is rotatably mounted on one end of the pull rod (4), and a baffle (5) is fixedly mounted on one end of the positioning shaft tube (3), with the baffle (5) cooperating with the rotating plate (8).

6. The buckle structure for a table chair according to claim 5, wherein A handle (7) is fixedly installed on the top of the rotating plate (8), and a right-angle plate (6) is fixedly installed on the bottom of the rotating plate (8). The right-angle plate (6) and the baffle (5) cooperate with each other.

7. The buckle structure for a table chair according to claim 1, wherein The support leg (2) is provided with an L-shaped bend (17), which cooperates with the two tabletops (1).

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