CN220236435U - Folding chair capable of freely swinging up and down for backrest - Google Patents

Abstract

The utility model discloses a folding chair capable of freely swinging up and down aiming at a backrest, which belongs to the technical field of folding chairs and comprises a chair frame body and a backrest component, wherein the chair frame body comprises: the folding armrest comprises two backrest sliding seats, two front foot pipes which are rotationally connected with the backrest sliding seats, and folding armrest pipes which are rotationally connected with the tops of the two front foot pipes respectively, wherein the backrest component comprises: the two swing seats are connected with the backrest sliding seat in a sliding manner, the swing connecting seats are respectively installed at the tops of the two swing seats in a rotating manner, one end of each swing connecting seat is connected with a folding pipe in a rotating manner, and the other end of each swing connecting seat is connected with a swing pipe in a rotating manner. This folding chair to back upper and lower free swing, folding pipe and swinging tube pass through swing connecting seat rotation automatically regulated comfort angle, and the waist of user obtains the support, and the muscle of waist can relax, and lazy waist and have comfortable relaxation for the user.

Description

Folding chair capable of freely swinging up and down for backrest

Technical Field

The utility model belongs to the technical field of folding chairs, and particularly relates to a folding chair capable of freely swinging up and down aiming at a backrest.

Background

Currently, the backrest of commercial seats is generally a stationary product, such that the seat comfort is low, especially for indoor and camping sedentary persons. The noon break time of general staff is short, and many staff select to have a rest or fall asleep, but the back of office chair can't be adjusted, when leaning on the back, human waist and back can be in unsettled state for a long time, can not get the support, and long time so can cause lumbar muscle strain, the problem such as waist ache.

There is a need for a new type of folding chair that swings freely up and down with respect to the back rest.

Disclosure of Invention

The utility model aims to provide a folding chair capable of freely swinging up and down aiming at a backrest so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a folding chair to back upper and lower free swing, includes chair support body and back subassembly, the chair support body includes: the two backrest sliding seats, two front foot pipes which are rotationally connected with the backrest sliding seats, and a folding handrail pipe which is rotationally connected with the tops of the two front foot pipes respectively;

the backrest assembly includes: the two swing seats are connected with the backrest sliding seat in a sliding manner, the swing connecting seats are respectively installed at the tops of the two swing seats in a rotating manner, one end of each swing connecting seat is connected with a folding pipe in a rotating manner, and the other end of each swing connecting seat is connected with a swing pipe in a rotating manner.

Preferably, the bottom of each swing seat is provided with a backrest pipe in a limiting sliding connection manner, and each front foot pipe is fixedly sleeved with limiting plastic and the sliding sleeve is provided with sliding plastic.

Preferably, each limiting plastic is rotationally connected with a front cross pipe, and the middle parts of the two front cross pipes are connected through a rotating shaft.

Preferably, the middle part of every the backrest pipe is all rotated and is connected with the seatpad pipe, every seatpad pipe all the slip cap is equipped with the slip joint seat, every the slip plastic is all rotated and is connected with the support combination, and the support combination is connected through the pivot with the slip joint seat.

Preferably, the top end of each front cross pipe is rotationally connected with the sliding connection seat, one end of each folding handrail pipe far away from the backrest sliding seat is fixedly provided with a supporting seat, and the supporting seat is contacted with the top of the supporting combination.

Preferably, the bottom of each backrest tube is rotatably connected with a back cross tube, the middle parts of the two back cross tubes are connected through a rotating shaft, and the bottom of each back cross tube is rotatably connected with the backrest sliding seat.

Compared with the prior art, the utility model has the technical effects and advantages that:

when the folding chair is used, the chair frame body is unfolded, the sliding connecting seat slides along the seat cushion pipe in the unfolding process, the sliding plastic slides along the front foot pipe, then the folding handrail pipe is rotated to be horizontal, the supporting seat of the folding handrail pipe is contacted with the top of the supporting combination, and then the chair cloth is arranged on the seat cushion pipe, the folding pipe and the swinging pipe, so that the folding chair is convenient to store due to the folding arrangement of the chair frame body;

this folding chair to back upper and lower free swing, when adjusting, hold back sliding seat and upwards pull swing seat adjustment back subassembly highly adapt to different human bodies, rotatory swing connecting seat to this angle of adjusting the back of the chair, back folding tube and swing tube can swing, the free angle of adjustment improves the comfort level of use, when the user leans on the back of the chair to rest, folding tube and swing tube pass through swing connecting seat rotation automatically regulated comfort angle, the waist of user obtains the support, the muscle of waist can be relaxed, for the lazy waist of user and have comfortable relaxation.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a front view of an embodiment of the present utility model;

FIG. 3 is a side view of an embodiment of the present utility model;

fig. 4 is a schematic diagram illustrating a folding process according to an embodiment of the utility model.

Reference numerals illustrate:

in the figure: 01. a chair frame; 02. a backrest assembly;

10. a backrest sliding seat; 11. a swinging seat; 12. a connecting seat; 13. limiting plastic; 14. a support assembly; 15. a seat cushion tube; 16. sliding plastic; 17. folding the handrail tube; 18. a front foot tube; 19. a backrest tube; 21. swinging the connecting seat; 22. folding the tube; 23. swinging the tube; 26. a back cross tube; 27. a front cross tube.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.

Unless the directions indicated by the individual definitions are used, the directions of up, down, left, right, front, rear, inner and outer are all directions of up, down, left, right, front, rear, inner and outer in the drawings shown in the present utility model, and are described herein together.

The connection mode can adopt the prior modes such as bonding, welding, bolting and the like, and is based on the actual requirement.

In order to promote the travelling comfort of position of sitting, a folding chair as shown in fig. 1 to 4 to the back free swing from top to bottom, back folding tube 22 and swinging tube 23 can swing, adjust the angle at will, improve the comfort level of use, when the user leans on the back of the chair to rest, folding tube 22 and swinging tube 23 rotate the comfortable angle of automatically regulated through swing connecting seat 21, the waist of user obtains the support, the muscle of waist is relaxed, for the lazy waist of user and have comfortable relaxation, including chair support 01 and backrest module 02, chair support 01 includes: the two backrest sliding seats 10, two front foot pipes 18 which are both rotationally connected with the backrest sliding seats 10, and a folding handrail pipe 17 which is respectively rotationally connected with the tops of the two front foot pipes 18.

The bottom of each swing connecting seat 21 is provided with a backrest pipe 19 in a limiting sliding connection manner, and each front foot pipe 18 is fixedly sleeved with a limiting plastic 13 and the sliding sleeve is provided with a sliding plastic 16. Each limiting plastic 13 is rotatably connected with a front cross pipe 27, and the middle parts of the two front cross pipes 27 are connected through a rotating shaft. The middle part of each backrest pipe 19 is all rotationally connected with a seat cushion pipe 15, each seat cushion pipe 15 is all sleeved with a sliding connecting seat 12 in a sliding way, each sliding plastic 16 is all rotationally connected with a supporting combination 14, and the supporting combination 14 is connected with the sliding connecting seat 12 through a rotating shaft. The top end of each front cross tube 27 is rotatably connected with the sliding connection seat 12, one end of each folding armrest tube 17 far away from the backrest sliding seat 10 is fixedly provided with a supporting seat, and the supporting seat is contacted with the top of the supporting combination 14. The swing connecting seat 21 performs limit sliding through a through groove of the swing connecting seat and a bolt fixed on the backrest pipe 19.

In use, the chair frame 01 is unfolded, the sliding connecting seat 12 slides along the seat cushion pipe 15 in the unfolding process, the sliding plastic 16 slides along the front foot pipe 18, then the folding handrail pipe 17 is rotated to be horizontal, and the supporting seat of the folding handrail pipe 17 is contacted with the top of the supporting combination 14.

The backrest assembly 02 includes: two swing seats 11 which are both in sliding connection with the backrest sliding seat 10, and swing connecting seats 21 which are respectively installed at the tops of the two swing seats 11 in a rotating mode, wherein one end of each swing connecting seat 21 is connected with a folding pipe 22 in a rotating mode, and the other end of each swing connecting seat 21 is connected with a swing pipe 23 in a rotating mode. The middle of each swing pipe 23 is bent. The backrest sliding seat 10 and the swinging seat 11 are both plastic products, and a large external force is needed between the two to slide.

When the chair is used, after the chair frame body 01 is unfolded, the backrest sliding seat 10 is held, the swinging seat 11 is pulled upwards, the height of the backrest component 02 is adjusted to adapt to different human bodies, and the swinging connecting seat 21 is rotated, so that the angle of the chair back is adjusted.

The bottom of each backrest tube 19 is rotatably connected with a back cross tube 26, the middle parts of the two back cross tubes 26 are connected through a rotating shaft, and the bottom of each back cross tube 26 is rotatably connected with the backrest sliding seat 10. The front cross tube 27 and the rear cross tube 26 are used for integral structural connection.

Principle of operation

When the folding chair for freely swinging the backrest up and down is used, the chair frame body 01 is unfolded, the sliding connecting seat 12 slides along the seat cushion pipe 15 in the unfolding process, the sliding plastic 16 slides along the front foot pipe 18, then the folding handrail pipe 17 is rotated to be horizontal, the supporting seat of the folding handrail pipe 17 is contacted with the top of the supporting combination 14, and then the chair cloth is arranged on the seat cushion pipe 15, the folding pipe 22 and the swinging pipe 23;

when in adjustment, the backrest sliding seat 10 is held, the swinging seat 11 is pulled upwards to adjust the height of the backrest component 02 to adapt to different human bodies, and the swinging connecting seat 21 is rotated, so that the angle of the backrest is adjusted, and the sitting posture is more comfortable.

It should be noted that relational terms such as one and two are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a folding chair to back upper and lower free swing, includes chair support body (01) and back subassembly (02), its characterized in that: the chair frame (01) comprises: the two backrest sliding seats (10), two front foot pipes (18) which are both rotationally connected with the backrest sliding seats (10) and a folding handrail pipe (17) which is respectively rotationally connected with the tops of the two front foot pipes (18);

the backrest assembly (02) comprises: the two swing seats (11) are slidably connected with the backrest sliding seat (10), the swing connecting seats (21) are rotatably installed at the tops of the two swing seats (11) respectively, one end of each swing connecting seat (21) is rotatably connected with a folding pipe (22), and the other end of each swing connecting seat (21) is rotatably connected with a swing pipe (23).

2. A folding chair according to claim 1, wherein the chair is configured to swing freely up and down with respect to the backrest, wherein: the bottom of each swing seat (11) is provided with a backrest pipe (19) in a limiting sliding connection mode, and each front foot pipe (18) is fixedly sleeved with limiting plastic (13) and the sliding sleeve is provided with sliding plastic (16).

3. A folding chair according to claim 2, wherein the chair is configured to swing freely up and down with respect to the backrest, wherein: and each limiting plastic (13) is rotationally connected with a front cross pipe (27), and the middle parts of the two front cross pipes (27) are connected through a rotating shaft.

4. A folding chair according to claim 3, wherein the backrest is free to swing up and down, characterized in that: the middle part of every backrest pipe (19) all rotates and is connected with seatpad pipe (15), every seatpad pipe (15) all slip cap is equipped with slip joint seat (12), every slip plastic (16) all rotates and is connected with support combination (14), and support combination (14) are connected through the pivot with slip joint seat (12).

5. A folding chair according to claim 4, wherein the backrest is free to swing up and down, characterized in that: the top end of each front cross tube (27) is rotationally connected with the sliding connecting seat (12), one end, far away from the backrest sliding seat (10), of each folding handrail tube (17) is fixedly provided with a supporting seat, and the supporting seat is contacted with the top of the supporting combination (14).

6. A folding chair according to claim 2, wherein the chair is configured to swing freely up and down with respect to the backrest, wherein: the bottom of each backrest tube (19) is rotatably connected with a back cross tube (26), the middle parts of the two back cross tubes (26) are connected through a rotating shaft, and the bottom of each back cross tube (26) is rotatably connected with a backrest sliding seat (10).