Adjustable seat

Abstract

The utility model discloses an adjustable seat in the field of seats, which comprises a seat frame, an adjusting assembly, a seat cushion and a seat back, the adjusting assembly comprises a sliding rail fixedly arranged on the seat frame and a sliding piece arranged on the sliding rail in a sliding manner to realize the front-back movement of the seat cushion and the seat back, and the two ends of the sliding rail are bent outwards to form clamping parts. The two ends of the sliding piece are bent outwards to form sliding parts, the sliding parts are in sliding connection with the clamping parts, a positioning plate perpendicular to the sliding piece is fixedly arranged on the surface of the sliding piece, and the side face of the positioning plate extends outwards to form positioning parts perpendicular to the positioning plate; according to the adjustable seat disclosed by the utility model, the front-back movement of the seat cushion and the seat back is realized through the sliding connection of the sliding rail and the sliding piece, and a user can adjust the angles of the seat cushion and the seat back by simply pressing the push rod by arranging structures such as the positioning plate, the side plate, the supporting plate, the meshing plate, the connecting plate and the push rod, so that the requirements of different users are met.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to an adjustable seat. Background Art

[0002] A seat is a sitting tool with a seat cushion and a backrest, and some seats also have armrests. With the development and continuous improvement of the material life, multi-functional seats are becoming more and more common in daily life. Whether at work, study or leisure, seats are needed, and maintaining the same sitting posture for a long time will also have an impact on the health of the human body. Therefore, people have higher and higher requirements for the health care and comfort of seats.

[0003] The seats in the prior art are generally integral seats, usually including a seat frame, a seat cushion and a backrest. The seat cushion and the backrest are perpendicular to each other and fixed on the seat frame. The seat frame and the seat cushion cannot be adjusted, and the seat cushion and the backrest cannot be adjusted. When used for work or study, the seat cushion and the backrest of the seat are usually at a right angle, which is convenient for the user to provide support for the back, buttocks and thighs at the same time, and is convenient for relaxing the muscles of the whole body.

[0004] Since the existing integral seats cannot increase the included angle between the seat cushion and the backrest, the force application points on the buttocks and thighs of the user cannot be changed whether at work or at rest. After long-term use, the buttocks and thighs will be fatigued, and the angles of the seat cushion and the backrest cannot be adjusted. In addition, the front-back movement of the seat cushion and the backrest cannot be realized for flexible adjustment, which causes the user unable to make personalized adjustments according to his own height, body shape and sitting posture habits when using the seat, thus affecting the comfort of use. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art solutions, the utility model provides an adjustable seat, which can effectively solve the technical problems of poor flexibility, inconvenient angle adjustment and inconvenient front-back adjustment of the existing seats.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: an adjustable seat, including a seat frame, an adjustment component, a seat cushion, and a backrest. The adjustment component includes a slide rail fixedly arranged on the seat frame, and a sliding member slidably arranged on the slide rail to realize the front-back movement of the seat cushion and the backrest. Both ends of the slide rail are bent outward to form engaging portions, and both ends of the sliding member are bent outward to form sliding portions. The sliding portions are slidably connected to the engaging portions. A positioning plate perpendicular to the sliding member is fixedly arranged on the surface of the sliding member. A positioning portion perpendicular to the positioning plate extends outward from the side surface of the positioning plate. A side plate perpendicular to the positioning portion is arranged on the surface of the positioning portion. An arc-shaped groove is formed on the surface of the side plate. A support plate is arranged on the side surface of the positioning plate. One end of the support plate extends outward to form an engaging portion. A toothed plate meshing with the engaging portion is arranged on the side surface of the positioning plate through a screw. A connecting plate is arranged on the side surface of the toothed plate through a screw. A connecting portion is formed by bending the side surface of the connecting plate. A push rod is arranged on the connecting plate. The surface of the push rod is connected to the connecting portion. A backrest plate is arranged on the side surface of the backrest. A convex column protrudes outward from the side surface of the backrest plate. The convex column extends out of the arc-shaped groove. When the push rod is pressed to move, the push rod drives the toothed plate to rotate, so that the backrest plate slides from the upper end of the arc-shaped groove to the lower end of the arc-shaped groove, so as to realize the adjustment of the angles of the seat cushion and the backrest.

[0007] Further, pull rods are fixedly arranged on both sides of the sliding member. When the pull rods are adjusted to move, the sliding member slides back and forth along the slide rail.

[0008] Further, a fixing portion extends outward from the side surface of the positioning plate. The fixing portion is connected to the side plate through a screw.

[0009] Further, a limiting rod for limiting the excessive adjustment angle of the backrest is connected to the side surface of the seat frame through a screw. The limiting rod is inclined downward. Two mounting plates are arranged on the surface of the limiting rod. The two mounting plates are symmetrically distributed.

[0010] Further, a headrest is arranged on the top of the backrest through a screw. A U-shaped portion is formed by inward depression on the surface of the headrest.

[0011] Further, a sponge layer is arranged inside the seat cushion. A number of pocket springs are installed in the sponge layer. A silica gel thin layer is arranged on the surface of the sponge layer.

[0012] Further, the seat cushion is composed of one or more pieces spliced together.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The adjustable seat of the present utility model realizes the front-back movement of the seat cushion and the backrest through the sliding connection between the slide rail and the sliding member, greatly improving the flexibility of the seat. By setting structures such as a positioning plate, side plates, support plates, meshing plates, connecting plates, and push rods, users can adjust the angles of the seat cushion and the backrest by simply pressing the push rod, thus meeting the needs of different users and improving the comfort of use. Description of the Drawings

[0014] Figure 1 is a perspective view of the adjustable seat of the present utility model;

[0015] Figure 2 is a perspective view of the adjustment assembly of the adjustable seat of the present utility model;

[0016] Figure 3 is a schematic structural view of the positioning plate of the adjustable seat of the present utility model;

[0017] Figure 4 is a schematic structural view of the positioning plate and the support plate of the adjustable seat of the present utility model;

[0018] Figure 5 is a schematic structural view of the sliding member of the adjustable seat of the present utility model;

[0019] Figure 6 is a schematic structural view of the slide rail of the adjustable seat of the present utility model;

[0020] Figure 7 is a schematic internal structural view of the seat cushion of the adjustable seat of the present utility model.

[0021] Reference numerals in the drawings:

[0022] 1 - backrest; 2 - seat cushion; 3 - seat frame; 4 - headrest; 5 - U-shaped part; 6 - limit rod; 7 - adjustment assembly; 8 - side plate; 9 - arc groove; 10 - convex column; 11 - pull rod; 12 - push rod; 13 - sliding member; 14 - slide rail; 15 - backrest plate; 16 - pocket spring; 17 - support plate; 18 - meshing plate; 19 - sliding part; 20 - engaging part; 21 - sponge layer; 22 - silicone thin layer; 23 - positioning plate; 24 - positioning part; 25 - meshing part; 26 - connecting plate; 27 - connecting part; 28 - mounting plate; 29 - fixing part. Detailed Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figures 1-7 shown, the adjustable seat includes a seat frame 3, an adjustment assembly 7, a seat cushion 2 and a backrest 1. The adjustment assembly 7 includes a slide rail 14 fixedly arranged on the seat frame 3, and a sliding member 13 slidably arranged on the slide rail 14 to realize the front-back movement of the seat cushion 2 and the backrest 1. The seat frame 3 serves as the support structure of the entire seat, providing a stable installation foundation for structures such as the seat cushion 2 and the backrest 1. Both ends of the slide rail 14 are bent outward to form engaging portions 20, and both ends of the sliding member 13 are bent outward to form sliding portions 19. The sliding portions 19 are slidably connected to the engaging portions 20. A positioning plate 23 perpendicular to the sliding member 13 is fixedly arranged on the surface of the sliding member 13. A positioning portion 24 perpendicular to the positioning plate 23 extends outward from the side surface of the positioning plate 23. A side plate 8 perpendicular to the positioning portion 24 is arranged on the surface of the positioning portion 24. The fixing portion 29 extending from the side surface of the positioning plate 23 is connected to the side plate 8 by screws, which not only enhances the stability of the seat structure but also facilitates the installation and disassembly of the side plate 8 and the positioning plate 23, making it convenient for maintenance and replacement. An arc-shaped groove 9 is formed on the surface of the side plate 8. A support plate 17 is arranged on the side surface of the positioning plate 23. One end of the support plate 17 extends outward to form an engaging portion 25. An engaging plate 18 meshing with the engaging portion 25 is arranged on the side surface of the positioning plate 23 by screws. A connecting plate 26 is arranged on the side surface of the engaging plate 18 by screws. The side surface of the connecting plate 26 is bent to form a connecting portion 27. A push rod 12 is arranged on the connecting plate 26. The surface of the push rod 12 is connected to the connecting portion 27. A backrest plate 15 is arranged on the side surface of the backrest 1. A convex column 10 protrudes outward from the side surface of the backrest plate 15. The convex column 10 extends out of the arc-shaped groove 9. When the push rod 12 is pressed to move, the push rod 12 drives the engaging plate 18 to rotate, so that the backrest plate 15 slides from the upper end of the arc-shaped groove 9 to the lower end of the arc-shaped groove 9 to realize the adjustment of the angles of the seat cushion 2 and the backrest 1. Pull rods 11 are fixedly arranged on both sides of the sliding member 13. When the pull rods 11 are adjusted to move, the sliding member 13 slides back and forth along the slide rail 14. The pull rods 11 arranged on both sides of the sliding member 13 facilitate the user to manually adjust the position of the sliding member 13 on the slide rail 14, thereby easily realizing the front-back movement of the seat cushion 2 and the backrest 1, enhancing the adjustment function and practicability of the seat.

[0025] A fixing part 29 extends outward from the side surface of the positioning plate 23, and the fixing part 29 is connected to the side plate 8 by screws.

[0026] A limiting rod 6 for restricting the excessive adjustment angle of the chair back 1 is connected to the side surface of the seat frame 3 by screws. The limiting rod 6 is inclined downward. The limiting rod 6 provided on the side surface of the seat frame 3 can limit the excessive adjustment angle of the chair back 1, prevent the chair back 1 from tilting excessively and causing the user to lose balance or damage the seat, improving the safety and stability of the seat. The two mounting plates 28 on the surface of the limiting rod 6 are symmetrically distributed, enhancing the stability of the limiting rod 6. Two mounting plates 28 are provided on the surface of the limiting rod 6, and the two mounting plates 28 are symmetrically distributed. A backrest 4 is provided on the top of the chair back 1 by screws. A U-shaped part 5 is formed by inward depression on the surface of the backrest 4. The backrest 4 provided on the top of the chair back 1 can provide better back support for the user, reducing the fatigue caused by long-term sitting. The U-shaped part 5 on the surface of the backrest 4 is designed more ergonomically, making the back force more uniform and improving the comfort of use. A sponge layer 21 is provided inside the seat cushion 2. A number of pocket springs 16 are installed in the sponge layer 21. A silica gel thin layer 22 is provided on the surface of the sponge layer 21. The sponge layer 21 and the pocket springs 16 provided inside the seat cushion 2 can provide better elasticity and support force, enabling the user to remain comfortable even in a long-term sitting position. The setting of the silica gel thin layer 22 can increase the breathability of the seat cushion 2, further improving the comfort of use. The seat cushion 2 is composed of one or more pieces spliced together, facilitating the user to select and combine according to actual needs, meeting the personalized needs of different users.

[0027] For the adjustable seat of this embodiment, through the sliding connection between the slide rail 14 and the sliding part 13, the front-back movement of the seat cushion 2 and the chair back 1 is realized, greatly improving the flexibility of the seat. By setting structures such as the positioning plate 23, the side plate 8, the support plate 17, the meshing plate 18, the connecting plate 26 and the push rod 12, the user can adjust the angles of the seat cushion 2 and the chair back 1 by simply pressing the push rod 12, thereby meeting the needs of different users and improving the comfort of use.

[0028] During use, the front-back movement of the seat cushion 2 and the chair back 1 can be realized by adjusting the pull rod 11 to meet the needs of different heights and sitting postures. At the same time, the user can also adjust the angle of the chair back 1 by pressing the push rod 12 to make the chair back 1 more conform to the user's back curve, improving the comfort of use.

[0029] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An adjustable seat, comprising a seat frame, an adjustment assembly, a seat cushion and a backrest, characterized in that: The adjusting component includes a slide rail fixedly arranged on the seat frame and a sliding member slidably arranged on the slide rail to realize the front-back movement of the seat cushion and the backrest. Both ends of the slide rail are bent outward to form engaging portions, and both ends of the sliding member are bent outward to form sliding portions. The sliding portions are slidably connected to the engaging portions. A positioning plate perpendicular to the sliding member is fixedly arranged on the surface of the sliding member. A positioning portion perpendicular to the positioning plate extends outward from the side surface of the positioning plate. A side plate perpendicular to the positioning portion is arranged on the surface of the positioning portion. An arc-shaped groove is formed on the surface of the side plate. A support plate is arranged on the side surface of the positioning plate. One end of the support plate extends outward to form an engaging portion. A toothed plate engaged with the engaging portion is arranged on the side surface of the positioning plate through screws. A connecting plate is arranged on the side surface of the toothed plate through screws. A connecting portion is formed by bending the side surface of the connecting plate. A push rod is arranged on the connecting plate. The surface of the push rod is connected to the connecting portion. A backrest plate is arranged on the side surface of the backrest. A convex column protrudes outward from the side surface of the backrest plate. The convex column extends out of the arc-shaped groove. When the push rod is pressed to move, the push rod drives the toothed plate to rotate, so that the backrest plate slides from the upper end of the arc-shaped groove to the lower end of the arc-shaped groove, so as to realize the adjustment of the angles of the seat cushion and the backrest.

2. The adjustable seat according to claim 1, wherein: Pull rods are fixedly arranged on both sides of the sliding member. When the pull rods are adjusted to move, the sliding member slides back and forth along the slide rail.

3. The adjustable seat according to claim 1, wherein: A fixing portion extends outward from the side surface of the positioning plate. The fixing portion is connected to the side plate through screws.

4. The adjustable seat according to claim 1, wherein: A limiting rod for limiting the excessive adjustment angle of the backrest is connected to the side surface of the seat frame through screws. The limiting rod is inclined downward. Two mounting plates are arranged on the surface of the limiting rod. The two mounting plates are symmetrically distributed.

5. The adjustable seat according to claim 1, characterized in that: A headrest is arranged on the top of the backrest through screws. A U-shaped portion is formed by inward depression on the surface of the headrest.

6. The adjustable seat according to any one of claims 1-5, characterized in that: A sponge layer is arranged inside the seat cushion. A number of pocket springs are installed in the sponge layer on average. A silica gel thin surface layer is arranged on the surface of the sponge layer.

7. The adjustable seat according to any one of claims 1-5, characterized in that: The seat cushion is composed of one or more pieces spliced together.

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