Office chair

Abstract

The utility model relates to the technical field of office supplies, and discloses an office chair which comprises a supporting seat, a rotating structure is arranged in the middle of the upper surface of the supporting seat, a rotating plate is arranged on the upper surface of the rotating structure, and a group of first rotating seats and a group of second rotating seats are fixedly arranged on one side of the upper surface of the rotating plate. A connecting plate is rotationally connected to the inner walls of the first rotating seats, a third rotating seat is rotationally connected to one end of the connecting plate, a fixing plate is fixedly connected to the third rotating seat, and two through grooves are formed in the surface of the connecting plate. According to the office chair disclosed by the utility model, the office chair has a better buffering and damping effect, the femur of a user is effectively prevented from being injured, and meanwhile, the office chair also has the effect of correcting the humpback of the user.

Description

Technical Field

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

[0002] Office chairs can be considered an essential office supply, providing great convenience for people while working, and are thus considered one type of office equipment.

[0003] Currently, most office chairs generate a certain impact force when the user contacts the chair, which can easily lead to femoral injury. Additionally, many people unconsciously hunch over while seated, which can cause lumbar spine damage over time. Therefore, those skilled in the art have provided an office chair to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an office chair that has good cushioning and shock absorption, effectively preventing femoral injuries to users, and also has the effect of correcting hunchbacks in users.

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

[0006] An office chair includes a support base. A rotating structure is provided at the middle of the upper surface of the support base. A rotating plate is provided on the upper surface of the rotating structure. A set of first rotating seats and a set of second rotating seats are fixedly provided on one side of the upper surface of the rotating plate. A connecting plate is rotatably connected to the inner wall of the set of first rotating seats. A set of third rotating seats is rotatably connected to one end of the connecting plate. A fixing plate is fixedly connected to the set of third rotating seats. Two sets of through slots are formed on the surface of the connecting plate. A set of fourth rotating seats is fixedly provided on the lower surface of the fixing plate. A damper is rotatably connected to the inner wall of both the set of second and fourth rotating seats, and a spring is sleeved on the outer wall of the damper. One end of each set of dampers is rotatably connected to the inner wall of the corresponding through slot.

[0007] Through the above technical solution, the first rotating seat, the third rotating seat, and the connecting plate cooperate with each other to facilitate the connection between the rotating plate and the fixed plate. Under the action of the second rotating seat and the fourth rotating seat, the damper and the spring cooperate with each other to not only provide support, but also to buffer and reduce shock.

[0008] Furthermore, a streamlined backrest is fixedly connected to the rear end face of the fixed plate, and two first constraint straps are fixedly provided at the upper position of the front end face of the streamlined backrest. Each of the two first constraint straps is connected to a connecting buckle at its lower end, and each of the two connecting buckles is fixedly connected to a connecting strap at its lower end. Each of the two connecting straps is fixedly connected to a locking pin at its lower end.

[0009] The above technical solution allows for easy adjustment of the length of the first restraint strap according to the user's body shape through the cooperation between the first restraint strap and the connecting buckle.

[0010] Furthermore, two buckles are fixedly provided on the lower side of the front end face of the streamlined backrest, and the two buckles are respectively engaged with corresponding locking pins;

[0011] The above technical solution, through the cooperation of buckles and pins, makes it easy to fit the user's shoulders tightly against the streamlined backrest, thereby preventing the user from hunching over when using it.

[0012] Furthermore, the upper surface of the fixed plate is provided with two limiting grooves, and the inner walls of the two limiting grooves are slidably provided with limiting blocks, and the two limiting blocks are fixedly connected to the lifting plate.

[0013] Through the above technical solution, the lifting plate can be limited by the action of the limiting block.

[0014] Furthermore, a lifting structure is fixedly installed at the middle position of the lower surface of the fixed plate, and the output end of the lifting structure is fixedly connected to the lifting plate;

[0015] The above technical solution allows the lifting platform to move up and down via a lifting structure, making it easy to adjust flexibly according to the user's height.

[0016] Furthermore, casters are fixedly installed at the four corners of the lower surface of the support base;

[0017] The above technical solution, by incorporating casters, makes it easier to move the seat.

[0018] Furthermore, the two sets of dampers are parallel to each other;

[0019] The above technical solutions facilitate a better supporting role.

[0020] This utility model has the following beneficial effects:

[0021] 1. The office chair proposed in this utility model, compared with the existing office chair, facilitates the connection between the rotating plate and the fixed plate through the cooperation of the first rotating seat, the connecting plate and the third rotating seat. The fixed plate and the connecting plate are supported by the cooperation of the second rotating seat and the fourth rotating seat, using dampers and springs. This effectively buffers and reduces shock when the user contacts the chair, thereby protecting the user's femur.

[0022] 2. The office chair proposed in this utility model, compared with the existing office chair, can tightly bind the user's shoulders to the streamlined backrest by means of the cooperation between the first restraint strap, connecting buckle, pin and buckle when it is put into use, thereby effectively preventing the user from hunching over.

[0023] 3. The office chair proposed in this utility model, compared with the existing office chair, can flexibly adjust the height of the chair according to the user's height through the cooperation of the limiting block and the limiting groove and the air pressure pump, thereby greatly improving the practicality and flexibility of the chair. Attached Figure Description

[0024] Figure 1 This is a side view of an office chair proposed in this utility model;

[0025] Figure 2 This is a front view of an office chair proposed in this utility model;

[0026] Figure 3 This is a partial exploded view of an office chair proposed in this utility model;

[0027] Figure 4 This is a partial structural schematic diagram of an office chair proposed in this utility model;

[0028] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Support base; 2. Rotating structure; 3. Casters; 4. Rotating plate; 5. First rotating seat; 6. Second rotating seat; 7. Spring; 8. Damper; 9. Fixing plate; 10. Lifting plate; 11. Third rotating seat; 12. Streamlined backrest; 13. Connecting plate; 14. Through groove; 15. Limiting groove; 16. Limiting block; 17. First constraint belt; 18. Connecting buckle; 19. Connecting belt; 20. Locking pin; 21. Buckle; 22. Fourth rotating seat; 23. Lifting structure. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-5 An embodiment of this utility model provides an office chair, including a support base 1. A rotating structure 2 is provided at the middle of the upper surface of the support base 1. A rotating plate 4 is provided on the upper surface of the rotating structure 2. A set of first rotating seats 5 and a set of second rotating seats 6 are fixedly provided on one side of the upper surface of the rotating plate 4. A connecting plate 13 is rotatably connected to the inner wall of the set of first rotating seats 5. A set of third rotating seats 11 is rotatably connected to one end of the connecting plate 13. A fixing plate 9 is fixedly connected to the set of third rotating seats 11. Two sets of through grooves 14 are opened on the surface of the connecting plate 13. A fixing plate 9 is fixedly provided on the lower surface of the fixing plate 9. There is a set of fourth rotating seats 22. The inner walls of the second rotating seats 6 and the fourth rotating seats 22 are rotatably connected to dampers 8, and the outer walls of the dampers 8 are fitted with springs 7. One end of each set of dampers 8 is rotatably connected to the inner wall of the corresponding through groove 14. The first rotating seat 5, the third rotating seat 11, and the connecting plate 13 cooperate with each other to facilitate the connection between the rotating plate 4 and the fixed plate 9. Under the action of the second rotating seat 6 and the fourth rotating seat 22, the dampers 8 and the springs 7 cooperate with each other to not only provide support, but also to buffer and reduce shock.

[0033] A streamlined backrest 12 is fixedly connected to the rear end face of the fixed plate 9. Two first constraint straps 17 are fixedly installed at the upper position of the front face of the streamlined backrest 12. Each of the two first constraint straps 17 has a connecting buckle 18 at its lower end, and each of the two connecting buckles 18 has a connecting strap 19 fixedly connected to its lower end. Each of the two connecting straps 19 has a locking pin 20 fixedly connected to its lower end. The first constraint straps 17 and connecting buckles 18 work together to allow for adjustment of the length of the first constraint straps 17 according to the user's body shape. Two buckles 21 are fixedly installed on the lower side of the front face of the streamlined backrest 12. Each buckle 21 engages with a corresponding locking pin 20. The engagement of the buckles 21 and locking pins 20 ensures a tight fit between the user's shoulders and the streamlined backrest 12, preventing discomfort during use. To address the issue of hunched back, the upper surface of the fixed plate 9 is provided with two limiting grooves 15. Each limiting groove 15 has a sliding limiting block 16 on its inner wall. The two limiting blocks 16 are fixedly connected to the lifting plate 10, which limits the movement of the lifting plate 10. A lifting structure 23 is fixedly installed at the center of the lower surface of the fixed plate 9. The output end of the lifting structure 23 is fixedly connected to the lifting plate 10. The lifting structure 23 allows the lifting plate 10 to move up and down, facilitating flexible adjustment according to the user's height. Universal wheels 3 are fixedly installed at the four corners of the lower surface of the support seat 1, making seat movement easier. The two sets of dampers 8 are parallel to each other, providing better support.

[0034] Working principle: When in use, the damper 8 and spring 7 are provided at the lower end of the seat. When the user comes into contact with the seat, they can effectively buffer and reduce shock, thereby protecting the user's femur. Then, the latch 20 passes through the user's shoulder and engages with the buckle 21 under the armpit. This can effectively prevent the user from bending over and hunching over, which could lead to spinal injury. Then, according to the user's height, the height of the lifting plate 10 is adjusted by the lifting structure 23 under the action of the limiting block 16, thereby making the user more comfortable and greatly improving the practicality of the seat.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An office chair, comprising a support seat (1), characterized in that: A rotating structure (2) is arranged at the middle position of the upper surface of the support seat (1), a rotating plate (4) is arranged on the upper surface of the rotating structure (2), a group of first rotating seats (5) and a group of second rotating seats (6) are fixedly arranged on one side of the upper surface of the rotating plate (4), the inner wall of the group of the first rotating seats (5) is rotatably connected to a connecting plate (13), one end of the connecting plate (13) is rotatably connected to a group of third rotating seats (11), a group of the third rotating seats (11) is fixedly connected to a fixed plate (9), two groups of through grooves (14) are opened on the surface of the connecting plate (13), a group of fourth rotating seats (22) is fixedly arranged on the lower surface of the fixed plate (9), the inner walls of the group of the second rotating seats (6) and the fourth rotating seats (22) are both rotatably connected to dampers (8), and the outer walls of the dampers (8) are sleeved with springs (7), and one end of the two groups of dampers (8) are both rotatably connected to the inner walls of the corresponding through grooves (14).

2. An office chair according to claim 1, characterized in that: The rear end surface of the fixing plate (9) is fixedly connected to a streamlined backrest (12), and two first restraining belts (17) are fixedly provided at an upper position of the front end surface of the streamlined backrest (12), the lower ends of the two first restraining belts (17) are connected to connecting buckles (18), the lower ends of the two connecting buckles (18) are fixedly connected to connecting belts (19), and the lower ends of the two connecting belts (19) are fixedly connected to bayonet pins (20).

3. An office chair according to claim 2, characterized in that: Two buckles (21) are fixedly arranged on the lower side of the front end surface of the streamlined backrest (12), and the two buckles (21) are respectively engaged with corresponding bayonet pins (20).

4. An office chair according to claim 1, characterized in that: The upper surface of the fixed plate (9) is provided with two limit grooves (15), the inner walls of the two limit grooves (15) are both slidably provided with limit blocks (16), and the two limit blocks (16) are jointly fixedly connected with the lifting plate (10).

5. An office chair according to claim 1, characterized in that: A lifting structure (23) is fixedly arranged at the middle position of the lower surface of the fixed plate (9), and the output end of the lifting structure (23) is fixedly connected to the lifting plate (10).

6. An office chair according to claim 1, characterized in that: Universal wheels (3) are fixedly arranged at four corners of the lower surface of the support seat (1).

7. An office chair according to claim 1, characterized in that: The two groups of dampers (8) are parallel to each other.

Images