A folding chair

Abstract

The utility model relates to a folding chair, including folding chair main part, seat front leg, first connecting rod, movable bolt, connecting support, guide slot and connecting bolt, the both sides below of folding chair main part symmetry is equipped with seat front leg, the outer wall between seat front leg is connected with first connecting rod threadedly, both sides of first connecting rod all have the movable bolt of sleeve joint, and the movable bolt one end is connected on the outer wall of seat front leg threadedly, one side fixed connection of seat front leg has connecting support, and the one side of connecting support is penetrated in the inside of folding chair main part, the utility model is folded to the back of chair, the chair leg, seat cushion, and the convenient storage is carried out when not using, and can effectively save the packing volume to reach the purpose of saving transportation cost. In addition, the backrest structure that can angle adjustment and has the elastic return function can effectively increase the comfort of user.

Description

Technical Field

[0001] This utility model relates to the field of folding chair technology, and in particular to a folding chair. Background Technology

[0002] A chair is a piece of everyday furniture, a seat with a backrest and armrests. Modern chairs pursue aesthetics and fashion, and some chairs are no longer just for sitting. With the integration of technology, they make human life more convenient, and folding chairs are one of them. However, existing folding chairs still have a large volume after folding, which occupies a lot of storage and transportation space, making them inconvenient to use and increasing transportation costs. Moreover, existing folding chairs do not have adjustable backrest angles or spring return functions, so the comfort is not good when the user leans against the backrest. Utility Model Content

[0003] The problem solved by this utility model is to provide a folding chair that can fold the backrest, legs and seat cushion, making it convenient to store and save space when not in use. The packaging is small, which can save transportation costs. Moreover, the backrest structure has an elastic return device. When the user leans against the backrest, the backrest will tilt back slightly with the backward force. When the backward force is released, the backrest will return to its original position, thereby increasing the comfort of the folding chair.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a folding chair, comprising a folding chair body, seat front legs, a first connecting rod, movable bolts, a connecting bracket, a guide groove, and connecting bolts. Seat front legs are symmetrically installed on the lower sides of both sides of the folding chair body. A first connecting rod is threaded onto the outer wall between the seat front legs. Movable bolts are sleeved on both sides of the first connecting rod, and one end of each movable bolt is threaded onto the outer wall of the seat front leg. A connecting bracket is fixedly connected to one side of each seat front leg, and one side of the connecting bracket extends through the interior of the folding chair body. Connecting bolts are distributed and sleeved on the top of the connecting bracket, and the bottom end of each connecting bolt is threaded onto the inner wall of the folding chair body. A guide groove is provided on the connecting bracket corresponding to the position of the movable bolt.

[0005] Preferably, a movable backrest is rotatably connected to one side of the front leg of the seat, and a rear leg of the seat is rotatably connected to both outer walls of the movable backrest. A connecting shaft is plastically attached to the inner wall of one side of the rear leg of the seat, and one side of the connecting shaft is connected through to the inner wall of the movable backrest. A torsion spring is sleeved on the inner wall of one side of the rear leg of the seat, and the other end of the torsion spring is sleeved on the inner wall of the movable backrest. A positioning block is fixedly connected to the inner wall of one side of the rear leg of the seat, and a limit groove is formed in the movable backrest corresponding to the position of the positioning block. A second connecting rod is fixedly connected to the outer wall of one end of the connecting shaft.

[0006] Preferably, a plastic seat cushion is installed at the top of the folding chair body, and a backrest cushion is fixed to the outer wall of one side of the movable backrest.

[0007] Preferably, the connecting bracket is L-shaped, and the guide groove is L-shaped and distributed in an arc shape.

[0008] The beneficial effects of this invention are: the chair back, legs, and seat cushion can be folded for easy storage when not in use, and it can effectively save packaging volume, thereby saving transportation costs. In addition, the backrest structure, which is angle-adjustable and has a spring-loaded return function, can effectively increase user comfort. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0010] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0011] Figure 3 This utility model Figure 2 Partial 3D structural diagram;

[0012] Figure 4 This is a three-dimensional structural diagram of the rear leg of the seat of this utility model;

[0013] Figure 5 This utility model Figure 3 Partial three-dimensional structural diagram;

[0014] Figure 6 This is a first folding structural diagram of the present invention;

[0015] Figure 7 This is a second folding structure diagram of the present invention;

[0016] Figure 8 This is a diagram of the third fold structure of this utility model.

[0017] Legend:

[0018] 1. Folding chair body; 2. Plastic seat cushion; 3. Front leg of the seat; 4. First connecting rod; 5. Movable bolt; 6. Connecting bracket; 7. Guide groove; 8. Connecting bolt; 9. Movable backrest; 10. Limiting groove; 11. Backrest cushion; 12. Rear leg of the seat; 13. Connecting shaft; 14. Torsion spring; 15. Positioning block; 16. Second connecting rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Specific implementation examples are given below.

[0021] See Figures 1-8 A folding chair includes a folding chair body 1, seat front legs 3, a first connecting rod 4, movable bolts 5, a connecting bracket 6, a guide groove 7, and connecting bolts 8. Seat front legs 3 are symmetrically installed on the lower sides of the folding chair body 1. The first connecting rod 4 is threaded onto the outer wall between the seat front legs 3. Movable bolts 5 are sleeved on both sides of the first connecting rod 4, and one end of the movable bolt 5 is threaded onto the outer wall of the seat front leg 3. A connecting bracket 6 is fixedly connected to one side of the seat front leg 3, and one side of the connecting bracket 6 extends through the interior of the folding chair body 1. Connecting bolts 8 are sleeved on the top of the connecting bracket 6, and the bottom end of the connecting bolt 8 is threaded onto the inner wall of the folding chair body 1. A guide groove 7 is provided on the connecting bracket 6 corresponding to the position of the movable bolt 5. The seat front leg 3 can be rotated... The chair has a movable backrest 9, and seat legs 12 are rotatably connected to the outer walls of both sides of the movable backrest 9. A connecting shaft 13 is fixed to the inner wall of one side of the seat legs 12, and one side of the connecting shaft 13 is connected to the inner wall of the movable backrest 9. A torsion spring 14 is sleeved on the inner wall of one side of the seat legs 12, and the other end of the torsion spring 14 is sleeved on the inner wall of the movable backrest 9. A positioning block 15 is fixed to the inner wall of one side of the seat legs 12. A limit groove 10 is opened in the movable backrest 9 corresponding to the position of the positioning block 15. A second connecting rod 16 is fixedly connected to the outer wall of one end of the connecting shaft 13. A plastic seat cushion 2 is installed at the top of the folding chair body 1. A cushion 11 is fixed to the outer wall of the top of one side of the movable backrest 9. The connecting bracket 6 is L-shaped, and the guide groove 7 is L-shaped and arc-shaped.

[0022] Working principle: When the chair needs to be folded, first press down on the plastic seat cushion 2 on the main body 1 of the folding chair. This causes the connecting bracket 6 to move relative to the guide groove 7 and bolt 5, which in turn drives the front leg 3 to rotate around the connecting shaft 13, folding the front leg 3 and the rear leg 12 of the chair. Then, rotate the movable backrest 9 around the connecting shaft 13. When the movable backrest 9 rotates to the plastic seat cushion 2 on the main body 1 of the folding chair, the backrest is folded. When the user sits on the plastic seat cushion 2 on the main body 1 of the folding chair and leans back against the cushion 11 on the movable backrest 9, the movable backrest 9 rotates backward around the connecting shaft 13, thus achieving a reclining angle. The purpose of adjustment is that when the backrest 9 rotates around the connecting shaft 13, it simultaneously drives the torsion spring 14 to tighten and rotate. Under the action of the spring torque, it provides support for the user's back. When the backrest 9 rotates around the connecting shaft 13, the limiting groove 10 rotates to the edge of the positioning block 10, thereby limiting the angle of the movable backrest 9. When the user is not leaning on the movable backrest 9, under the action of the torsion spring 14, the movable backrest 9 rotates back around the connecting shaft 13, and the limiting groove 10 returns to its original position in the positioning block 15. Folding the chair backrest, legs, and seat cushion makes it convenient to store when not in use and can effectively save packaging volume, thereby saving transportation costs. In addition, the backrest structure with angle adjustment and elastic return function can effectively increase the user's comfort.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A folding chair, characterized in that, Including the main body of the folding chair, The folding chair body has symmetrically installed front legs at the bottom and a seat cushion at the top. A movable backrest is rotatably connected to one side of the front leg of the seat, and the rear legs of the seat are rotatably connected to both outer walls of the movable backrest.

2. A folding chair according to claim 1, characterized in that, A first connecting rod is threaded onto the outer wall between the front legs of the seat. Movable bolts are fitted onto both sides of the first connecting rod, and one end of the movable bolt is threaded onto the outer wall of the front leg of the seat.

3. A folding chair according to claim 2, characterized in that, A connecting bracket is fixedly connected to one side of the front leg of the seat, and one side of the connecting bracket extends through the interior of the folding chair body. Connecting bolts are distributed and sleeved on the top of the connecting bracket, and the bottom end of the connecting bolt is threaded to the inner wall of the folding chair body. A guide groove is provided on the connecting bracket corresponding to the position of the movable bolt.

4. A folding chair according to claim 3, characterized in that, A connecting shaft is plastically attached to one side of the inner wall of the rear leg of the seat, and one side of the connecting shaft is connected to the inner wall of the movable backrest. A torsion spring is sleeved on one side of the inner wall of the rear leg of the seat, and the other end of the torsion spring is sleeved on the inner wall of the movable backrest. A positioning block is fixedly attached to one side of the inner wall of the rear leg of the seat.

5. A folding chair according to claim 4, characterized in that, A limiting groove is provided inside the movable backrest at the position corresponding to the positioning block, and a second connecting rod is fixedly connected to the outer wall of one end of the connecting shaft.

6. A folding chair according to claim 5, characterized in that, A cushion is fixed to the outer wall of one top edge of the movable backrest.

7. A folding chair according to claim 6, characterized in that, The connecting bracket is L-shaped, and the guide groove is L-shaped and distributed in an arc.

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