A multifunctional office chair

Abstract

The utility model discloses a multi -functional office chair, including pentagonal support leg and base, the bottom fixedly connected with universal wheel of pentagonal support leg, pentagonal support leg top fixedly connected with stand, and the inside wall of stand is provided with the sliding slot, and the inside wall sliding connection of sliding slot has the sliding block, and the side wall fixedly connected with movable rod of sliding block, and the top fixedly connected with base of movable rod, and the surface detachable connection of base has the cushion, and the side wall still fixedly connected with telescopic frame of base, and the movable end fixedly connected with handrail of telescopic frame, and the side wall of telescopic frame is provided with the adjusting button for spacing, the utility model discloses office chair height adjustment is convenient, and the stability is strong, and the lift stroke is big, can satisfy the use demand of different height staff, and the adaptability is strong, and the saddle shape design of backrest, waist support and head support accords with ergonomics, and the waist back partition, effectively alleviates the pressure of spine and neck, provides elastic support, and the waist support is self -adaptation before and after, and the front inclination pursues the waist, and the back leans against, further promote the comfortable degree of leaning on.

Description

Technical Field

[0001] This utility model relates to the field of office chair technology, specifically a multifunctional office chair. Background Technology

[0002] In modern office environments, office chairs are essential equipment used by employees for extended periods. Traditional office chairs have limited functionality, often with limited height adjustment range and poor stability, failing to meet the needs of users of different heights. This leads to unnatural postures for some users, easily causing fatigue and injury to the lower back and neck. Furthermore, the armrests of traditional office chairs are usually fixed, making it difficult to adapt to different users' arm placement habits and needs, causing discomfort after prolonged use. In addition, the backrest, lumbar support, and headrest designs of traditional office chairs are often unreasonable, lacking conformity to the body's curves and failing to effectively distribute body pressure. Moreover, the materials used have poor breathability, leading to stuffiness and discomfort during extended use, significantly impacting office comfort and work efficiency. Therefore, those skilled in the art have provided a multifunctional office chair to address the problems mentioned in the background. Utility Model Content

[0003] The purpose of this utility model is to provide a multifunctional office chair to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multifunctional office chair includes pentagonal legs and a base. Universal casters are fixedly connected to the bottom of the pentagonal legs, and a column is fixedly connected to the top of the pentagonal legs. A sliding groove is formed on the inner side wall of the column, and a slider is slidably connected to the inner side wall of the groove. A movable rod is fixedly connected to the side wall of the slider, and a base is fixedly connected to the top of the movable rod. A seat cushion is detachably connected to the surface of the base. A telescopic frame is also fixedly connected to the side wall of the base, and an armrest is fixedly connected to the movable end of the telescopic frame. An adjustment knob for limiting the position is provided on the side wall of the telescopic frame. A back panel is fixedly connected to the side wall of the base, and a backrest is fixedly connected to the side wall of the back panel.

[0006] Furthermore, the movable rod has a threaded inner cavity, and a threaded rod is threadedly connected to the inner wall of the threaded inner cavity. A first bevel gear is fixedly connected to the bottom end of the threaded rod.

[0007] Furthermore, a transmission rod is rotatably connected to the inner side wall of the column, and a second bevel gear is fixedly connected to the surface of the transmission rod, with the first bevel gear meshing with the second bevel gear.

[0008] Furthermore, a handle is rotatably connected to the side wall of the column, and the handle shaft end is fixedly connected to one end of the transmission rod.

[0009] Furthermore, the back panel sidewall is also fixedly connected to a first elastic bracket and a second elastic bracket. One end of the first elastic bracket is fixedly connected to a lumbar support, which is located below the backrest. One end of the second elastic bracket is fixedly connected to a headrest, which is located above the backrest.

[0010] Furthermore, the backrest, lumbar support, and headrest are all saddle-shaped designs, and are made of double-layer three-dimensional breathable mesh.

[0011] By adopting the above technical solution

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The design of the telescopic frame and adjustment knob allows the armrest position to be adjusted according to the user's habits, providing comfortable support for the arms and helping to relieve fatigue caused by long hours of office work. Through the cooperation of the handle, transmission rod, bevel gear set and threaded rod, the height of the office chair can be conveniently adjusted. The threaded rod transmission has a self-locking property, strong stability, and a large lifting stroke, which can meet the usage needs of staff of different heights and has strong adaptability.

[0014] 2. The saddle-shaped design of the backrest, lumbar support, and headrest conforms to ergonomics, with lumbar and back sections that closely fit the curves of the back, waist, and head, effectively reducing pressure on the spine and neck. The elastic support provided by the first and second elastic supports, the adaptive lumbar support forward and backward, the forward tilt to follow the waist, and the backward lean to fit snugly, further enhances the comfort of leaning. The double-layer three-dimensional breathable mesh material can maintain air circulation, avoid stuffiness from sitting for a long time, and improve the comfort of long-term office work. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a multifunctional office chair;

[0016] Figure 2 This is a side view of a multi-functional office chair;

[0017] Figure 3 This is a rear view of a multi-functional office chair;

[0018] Figure 4 This is a schematic diagram of the internal structure of the upright column in a multifunctional office chair.

[0019] In the diagram: 1. Pentagonal support leg; 2. Casters; 3. Column; 4. Slide rail; 5. Slider; 6. Movable rod; 7. Base; 8. Telescopic frame; 9. Armrest; 10. Adjustment knob; 11. Seat cushion; 12. Back panel; 13. Backrest; 14. First elastic support; 15. Lumbar support; 16. Second elastic support; 17. Headrest; 18. Threaded rod; 19. First bevel gear; 20. Transmission rod; 21. Second bevel gear; 22. Handle. Detailed Implementation

[0020] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Please see Figures 1-4This utility model provides an embodiment of a multifunctional office chair, including pentagonal legs 1 and a base 7. The bottom of the pentagonal legs 1 is fixedly connected to casters 2, and the top of the pentagonal legs 1 is fixedly connected to a column 3. A groove 4 is formed on the inner side wall of the column 3, and a slider 5 is slidably connected to the inner side wall of the groove 4. A movable rod 6 is fixedly connected to the side wall of the slider 5, and the top of the movable rod 6 is fixedly connected to the base 7. A seat cushion 11 is detachably connected to the surface of the base 7. A telescopic frame 8 is also fixedly connected to the side wall of the base 7, and an armrest 9 is fixedly connected to the movable end of the telescopic frame 8. The side wall of the telescopic frame 8 is provided with useful... The adjustable knob 10 is positioned at the limit. A back plate 12 is fixedly connected to the side wall of the base 7. A backrest 13 is fixedly connected to the side wall of the back plate 12. A threaded inner cavity is opened inside the movable rod 6. A threaded rod 18 is threadedly connected to the inner wall of the threaded inner cavity. A first bevel gear 19 is fixedly connected to the bottom end of the threaded rod 18. A transmission rod 20 is rotatably connected to the inner wall of the column 3. A second bevel gear 21 is fixedly connected to the surface of the transmission rod 20, and the first bevel gear 19 and the second bevel gear 21 are meshed together. A handle 22 is rotatably connected to the side wall of the column 3. The shaft end of the handle 22 is fixedly connected to one end of the transmission rod 20. Regarding height adjustment, turning handle 22 causes transmission rod 20 to rotate, which in turn rotates the second bevel gear 21 on transmission rod 20. The first bevel gear 19, meshing with the second bevel gear 21, also rotates, causing the threaded rod 18 to rotate and move up and down within the threaded cavity of the movable rod 6. Since the movable rod 6 is connected to the slider 5, the slider 5 slides within the groove 4 of the column 3, thus achieving height adjustment of components such as the base 7 and seat 11. The armrest 9 is adjusted using the telescopic frame 8. Turning the adjustment knob 10 can loosen or lock the telescopic frame 8. After adjusting the position of the armrest 9 according to their own needs, tightening the adjustment knob 10 will complete the limit. The design of the telescopic frame 8 and the adjustment knob 10 allows the position of the armrest 9 to be adjusted according to the user's habits, providing comfortable support for the arms and helping to relieve fatigue caused by long hours of office work. Through the cooperation of the handle 22, transmission rod 20, bevel gear set and threaded rod 18, the height of the office chair can be conveniently adjusted. The threaded rod 18 transmission has a self-locking property, strong stability, and a large lifting stroke, which can meet the usage needs of staff of different heights and has strong adaptability.

[0022] In this embodiment, a first elastic bracket 14 and a second elastic bracket 16 are fixedly connected to the side wall of the back panel 12. One end of the first elastic bracket 14 is fixedly connected to a lumbar support 15, which is located below the backrest 13. One end of the second elastic bracket 16 is fixedly connected to a headrest 17, which is located above the backrest 13. The backrest 13, lumbar support 15, and headrest 17 are all saddle-shaped designs, and are made of double-layered three-dimensional breathable mesh. In terms of comfort, the saddle-shaped design of the backrest 13, lumbar support 15, and headrest 17 conforms to the human body curve. Meanwhile, the first elastic bracket 14 and the second elastic bracket 16 are respectively the lumbar support 15... The headrest 17 provides elastic support and effectively distributes pressure when the body leans against it. The double-layer three-dimensional breathable mesh material used in all three components promotes air circulation and improves comfort during long periods of sitting. The saddle-shaped design of the backrest 13, lumbar support 15, and headrest 17 conforms to ergonomics, with lumbar and back sections that closely fit the curves of the back, waist, and head, effectively reducing pressure on the spine and neck. The elastic support provided by the first elastic support 14 and the second elastic support 16, along with the lumbar support 15's adaptive forward and backward movement, further enhances leaning comfort by tilting forward to follow the waist and leaning back to fit snugly. The double-layer three-dimensional breathable mesh material maintains air circulation, preventing stuffiness from prolonged sitting and improving comfort during long hours of office work.

[0023] Regarding height adjustment, turning the handle 22 causes the transmission rod 20 to rotate, which in turn rotates the second bevel gear 21 on the transmission rod 20. The first bevel gear 19, which meshes with the second bevel gear 21, also rotates, causing the threaded rod 18 to rotate and move up and down in the threaded cavity of the movable rod 6. Since the movable rod 6 is connected to the slider 5, the slider 5 slides in the groove 4 of the column 3, thereby achieving height adjustment of components such as the base 7 and the seat cushion 11. The adjustment of the armrest 9 is achieved by the telescopic frame 8. Turning the adjustment knob 10 can loosen or fix the telescopic frame 8. After adjusting the position of the armrest 9 according to their own needs, tightening the adjustment knob 10 will complete the limit. In terms of comfort, the saddle-shaped design of the backrest 13, lumbar support 15, and headrest 17 conforms to the curve of the human body. At the same time, the first elastic support 14 and the second elastic support 16 provide elastic support for the lumbar support 15 and the headrest 17, respectively. When the human body leans against them, they can effectively distribute pressure. The double-layer three-dimensional breathable mesh material used in the three components helps air circulation and improves comfort when sitting for a long time.

[0024] The design of the telescopic frame 8 and adjustment knob 10 allows the armrest 9 to be adjusted according to the user's habits, providing comfortable support for the arms and helping to relieve fatigue from long hours of office work. The combination of the handle 22, transmission rod 20, bevel gear set and threaded rod 18 enables convenient height adjustment of the office chair. The threaded rod 18 has a self-locking function, strong stability, and a large lifting stroke, which can meet the needs of users of different heights and has strong adaptability. The saddle-shaped design of the backrest 13, lumbar support 15 and headrest 17 conforms to ergonomics, with lumbar and back sections that closely fit the curves of the back, waist and head, effectively reducing pressure on the spine and neck. The elastic support provided by the first elastic support 14 and the second elastic support 16, the lumbar support 15 self-adapting forward and backward, tilting forward to follow the waist, and leaning back to fit the body, further enhances the comfort of leaning. The double-layer three-dimensional breathable mesh material can maintain air circulation, avoid stuffiness from sitting for a long time, and improve the comfort of long hours of office work.

[0025] This specification describes embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multifunctional office chair, characterized in that, The device includes a pentagonal support leg (1) and a base (7). The bottom of the pentagonal support leg (1) is fixedly connected to a caster wheel (2). The top of the pentagonal support leg (1) is fixedly connected to a column (3). The inner side wall of the column (3) is provided with a sliding groove (4). The inner side wall of the sliding groove (4) is slidably connected to a slider (5). The side wall of the slider (5) is fixedly connected to a movable rod (6). The top of the movable rod (6) is fixedly connected to a base (7). The surface of the base (7) is detachably connected to a cushion (11). The side wall of the base (7) is also fixedly connected to a telescopic frame (8). The movable end of the telescopic frame (8) is fixedly connected to an armrest (9). The side wall of the telescopic frame (8) is provided with an adjustment knob (10) for limiting the position. The side wall of the base (7) is fixedly connected to a back panel (12). The side wall of the back panel (12) is fixedly connected to a backrest (13).

2. A multifunctional office chair according to claim 1, characterized in that, The movable rod (6) has a threaded inner cavity inside, and a threaded rod (18) is threadedly connected to the inner wall of the threaded inner cavity. The bottom end of the threaded rod (18) is fixedly connected to a first bevel gear (19).

3. A multifunctional office chair according to claim 1, characterized in that, The inner wall of the column (3) is rotatably connected to a transmission rod (20), and a second bevel gear (21) is fixedly connected to the surface of the transmission rod (20), and the first bevel gear (19) meshes with the second bevel gear (21).

4. A multifunctional office chair according to claim 1, characterized in that, The side wall of the column (3) is rotatably connected to a handle (22), and the shaft end of the handle (22) is fixedly connected to one end of the transmission rod (20).

5. A multifunctional office chair according to claim 1, characterized in that, The back panel (12) is also fixedly connected to a first elastic bracket (14) and a second elastic bracket (16). One end of the first elastic bracket (14) is fixedly connected to a lumbar support (15), and the lumbar support (15) is located below the backrest (13). One end of the second elastic bracket (16) is fixedly connected to a headrest (17), and the headrest (17) is located above the backrest (13).

6. A multifunctional office chair according to claim 5, characterized in that, The backrest (13), lumbar support (15) and headrest (17) are all saddle-shaped designs, and the backrest (13), lumbar support (15) and headrest (17) are all made of double-layer three-dimensional breathable mesh.

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