Foldable dining chair structure convenient to carry

Abstract

The utility model relates to the technical field of child dining chairs, in particular to a foldable dining chair structure convenient to carry, and a joint structure comprises a key, a limiting block, a spring and a connecting piece; the connecting piece is fixed on the front supporting leg; a key groove is formed in the connecting piece; the rear supporting legs are inserted into the open slots; the rear supporting legs and the limiting blocks are rotationally connected to the joint structures through rotating shafts; positioning strips matched with the positioning holes are arranged on the limiting blocks; the limiting block is arranged in the sliding hole; the spring is connected between the inner bottom wall of the sliding hole and the limiting block; the key is connected in the key groove in a sliding manner; an ejector rod is arranged on the key; an ejector rod passing hole through which the ejector rod passes is formed in the key groove; the ejector rod right faces the limiting block. When the folding chair is used, the limiting blocks and the rear supporting legs can rotate around the connecting pieces, so that the rear supporting legs can be unfolded or folded on the front supporting legs; the dining chair is easy to fold and carry, and the folding structure is compact and small.

Description

Technical Field

[0001] The utility model relates to the technical field of children's dining chairs, and particularly relates to a foldable dining chair structure which is convenient to carry. Background Art

[0002] A children's dining chair is an item that facilitates a child to dine at the same table with adults. It mainly consists of a seat body and support legs connected to the table and chair body. Since some restaurants and hotels do not provide children's dining chairs, it is often necessary to carry a dining chair when going out to dine with children. In the existing dining chair structure, the front support legs and the rear support legs of the dining chair are fixed to the chair and cannot be folded, which is inconvenient to carry. Content of the Utility Model

[0003] The purpose of the utility model is to provide a foldable dining chair structure which is convenient to carry in view of the defects and deficiencies of the prior art.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0005] A foldable dining chair structure which is convenient to carry according to the utility model comprises a seat body, a connecting rod and front support feet fixed on the seat body; two parallel rear support legs are connected to the rear surface of the front support feet; both of the two rear support legs are fixed on the connecting rod; one of the rear support legs is hinged to the front support feet; the other rear support leg is connected to the front support feet through a joint structure;

[0006] The joint structure comprises a button, a limit block, a spring and a connecting piece; the connecting piece is fixed on the front support feet; a button groove is formed in the connecting piece; an opening groove is formed in the bottom of the rear support leg; the rear support leg is inserted into the opening groove; both the rear support leg and the limit block are rotatably connected to the joint structure through a rotating shaft; a top rod through hole and a plurality of positioning holes are formed in the surface of the joint structure; the positioning holes are circumferentially distributed on the connecting piece; a positioning strip matched with the positioning holes is arranged on the limit block; a sliding hole is arranged inside the rear support leg; the limit block is arranged inside the sliding hole;

[0007] A plurality of guiding grooves are arranged on the side wall of the sliding hole; a sliding strip matched with the guiding grooves is arranged on the side wall of the limit block; the spring is connected between the inner bottom wall of the sliding hole and the limit block; the button is slidably connected in the button groove; a top rod is arranged on the button; a top rod through hole for passing through the top rod is arranged in the button groove; the top rod is arranged opposite to the limit block.

[0008] Furthermore, the number of the positioning holes and the number of the positioning strips are both two; the positioning holes and the positioning strips are both circumferentially distributed.

[0009] Furthermore, a buckle is provided at the end of the ejector rod; the buckle is snapped into and fixed on the inner end face of the ejector rod through-hole to position the button in the button slot.

[0010] Furthermore, a footrest is fixed on the front support feet.

[0011] Furthermore, the cross-section of the positioning bar is circular.

[0012] After adopting the above structure, the beneficial effects of the present utility model are as follows: When using the present utility model, the elastic force of the spring pushes the limiting block outwards, so that the positioning bar is inserted into the positioning hole for positioning; in addition, the sliding bar can only slide in the guiding groove and cannot rotate relative to the guiding groove, so that the rear support leg is fixed and positioned on the joint structure; when it is necessary for the rear support leg to swing around the front support foot, press the button, the ejector rod overcomes the elastic force of the spring, and pushes the limiting block to slide along the length direction of the guiding groove, so that the positioning bar is pulled out of the positioning hole; the limiting block and the rear support leg can rotate around the connecting piece, realizing the opening or folding of the rear support leg on the front support foot; making the dining chair easy to fold and carry, and this folding structure is compact and small. Description of the Drawings

[0013] Figure 1 is the structural diagram of the dining chair in the use state;

[0014] Figure 2 is the structural diagram of the dining chair in the folded state;

[0015] Figure 3 is the exploded view of the rear support leg and the joint structure;

[0016] Figure 4 is the cross-sectional view after the rear support leg and the joint structure are connected;

[0017] Figure 5 is the structural diagram of the button;

[0018] Figure 6 is the structural diagram of the limiting block;

[0019] Figure 7 is the first perspective three-dimensional view of the connecting piece;

[0020] Figure 8 is the second perspective three-dimensional view of the connecting piece;

[0021] Description of the Reference Numerals:

[0022] 1, seat body; 2, footrest; 3, front support foot; 4, rear support leg; 401, sliding hole;

[0023] 402, guiding groove; 5, joint structure; 501, button; 501a, ejector rod; 501b, buckle;

[0024] 502. Limit block; 502a. Slide bar; 502b. Positioning bar; 503. Spring; 504. Connector;

[0025] 504a. Button slot; 504b. Thumb rod through hole; 504c. Positioning hole; 504d. Opening slot;

[0026] 505. Rotating shaft; 6. Connecting rod. Detailed implementation manner

[0027] The present utility model will be further described below with reference to the accompanying drawings.

[0028] As Figures 1 to 8 shown, a foldable dining chair structure convenient to carry according to the present utility model includes a seat body 1, a connecting rod 6, and a front support leg 3 fixed on the seat body 1; the rear surface of the front support leg 3 is connected with two parallel rear support legs 4; both of the two rear support legs 4 are fixed on the connecting rod 6; one of the rear support legs 4 is hinged to the front support leg 3; the other rear support leg 4 is connected to the front support leg 3 through a joint structure 5;

[0029] The joint structure 5 includes a button 501, a limit block 502, a spring 503, and a connector 504; the connector 504 is fixed on the front support leg 3; a button slot 504a is formed on the connector 504; an opening slot 504d is formed at the bottom of the rear support leg 4; the rear support leg 4 is inserted into the opening slot 504d; both the rear support leg 4 and the limit block 502 are rotatably connected to the joint structure 5 through a rotating shaft 505; a thumb rod through hole 504b and a plurality of positioning holes 504c are formed on the surface of the joint structure 5; the positioning holes 504c are circumferentially distributed on the connector 504; a positioning bar 502b matching the positioning holes 504c is arranged on the limit block 502; a sliding hole 401 is arranged inside the rear support leg 4; the limit block 502 is arranged inside the sliding hole 401;

[0030] A plurality of guide grooves 402 are arranged on the side wall of the sliding hole 401; a slide bar 502a matching the guide grooves 402 is arranged on the side wall of the limit block 502; the spring 503 is connected between the inner bottom wall of the sliding hole 401 and the limit block 502; the button 501 is slidably connected in the button slot 504a; a thumb rod 501a is arranged on the button 501; a thumb rod through hole 504b for passing through the thumb rod 501a is arranged in the button slot 504a; the thumb rod 501a is arranged opposite to the limit block 502;

[0031] The elastic force of the spring 503 pushes the limit block 502 outwards, so that the positioning strip 502b is inserted into the positioning hole 504c for positioning; in addition, the sliding strip 502a can only slide in the guiding groove 402 and cannot rotate relative to the guiding groove 402, so that the rear support leg 4 is fixed and positioned on the joint structure 5;

[0032] When the rear support leg 4 needs to swing around the front support foot 3, press the button 501, the ejector rod 501a overcomes the elastic force of the spring 503, and pushes the limit block 502 to slide along the length direction of the guiding groove 402, so that the positioning strip 502b is pulled out from the positioning hole 504c; the limit block 502 and the rear support leg 4 can rotate around the connecting piece 504, realizing the opening or folding of the rear support leg 4 on the front support foot 3; making the dining chair easy to fold and carry, and this folding structure is compact and small.

[0033] As a preferred embodiment of the present invention, the number of the positioning holes 504c and the number of the positioning strips 502b are both two; the positioning holes 504c and the positioning strips 502b are both distributed in a circular pattern; the two positioning holes 504c are symmetrically arranged on both sides of the rotating shaft 505, and the two positioning strips 502b are also symmetrically arranged on both sides of the rotating shaft 505; in the use state, the two positioning strips 502b are respectively inserted into the two positioning holes 504c for positioning, and the two positioning strips 502b share the pressure respectively.

[0034] As a preferred embodiment of the present invention, a buckle 501b is provided at the end of the ejector rod 501a; the buckle 501b is snapped into the inner end face of the ejector rod through hole 504b to realize the positioning of the button 501 in the button slot 504a, and the inner end face of the ejector rod through hole 504b is hooked and positioned by the hook part of the buckle 501b, which is convenient for the assembly of the button 501 and the connecting piece 504.

[0035] As a preferred embodiment of the present invention, a footrest 2 is fixed on the front support foot 3.

[0036] As a preferred embodiment of the present invention, the cross section of the positioning strip 502b is circular.

[0037] The above are only the preferred embodiments of the present invention, so all equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A foldable dining chair structure that is easy to carry, characterized in that: It comprises a seat body (1), a connecting rod (6) and a front supporting leg (3) fixed to the seat body (1); the rear surface of the front supporting leg (3) is connected to two mutually parallel rear supporting legs (4); the two rear supporting legs (4) are both fixed to the connecting rod (6); one of the rear supporting legs (4) is hinged to the front supporting leg (3); and the other rear supporting leg (4) is connected to the front supporting leg (3) via a joint structure (5); The joint structure (5) comprises a button (501), a limit block (502), a spring (503) and a connecting member (504); the connecting member (504) is fixed to the front supporting leg (3); a button slot (504a) is provided on the connecting member (504); an opening slot (504d) is provided at the bottom of the rear supporting leg (4); the rear supporting leg (4) is inserted into the opening slot (504d); the rear supporting leg (4) and the limit block (502) are both connected via a rotating shaft (50 5) is rotatably connected to the joint structure (5); a push rod through hole (504b) and a plurality of positioning holes (504c) are provided on the surface of the joint structure (5); the positioning holes (504c) are distributed in a circumferential manner on the connecting member (504); a positioning strip (502b) matching the positioning holes (504c) is provided on the limiting block (502); a sliding hole (401) is provided inside the rear supporting leg (4); the limiting block (502) is arranged in the sliding hole (401); A plurality of guide grooves (402) are arranged on the side wall of the sliding hole (401); a sliding bar (502a) matching the guide grooves (402) is arranged on the side wall of the limiting block (502); the spring (503) is connected between the inner bottom wall of the sliding hole (401) and the limiting block (502); the key (501) is slidably connected in the key groove (504a); a push rod (501a) is arranged on the key (501); a push rod passing hole (504b) for the push rod (501a) to pass through is arranged in the key groove (504a); and the push rod (501a) is arranged opposite to the limiting block (502).

2. The portable foldable dining chair structure according to claim 1, characterized in that: The number of the positioning holes (504c) and the number of the positioning bars (502b) are both two; and the positioning holes (504c) and the positioning bars (502b) are both distributed in a circular pattern.

3. The portable foldable dining chair structure according to claim 1 is characterized in that: The end of the push rod (501a) is provided with a buckle (501b); the buckle (501b) is snapped into and fixed on the inner end surface of the push rod through hole (504b) to achieve positioning of the key (501) in the key slot (504a).

4. The portable foldable dining chair structure according to claim 1 is characterized in that: A foot pedal (2) is fixed on the front supporting foot (3).

5. The portable foldable dining chair structure according to claim 1 is characterized in that: The cross section of the positioning strip (502b) is circular.

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