Streamline office chair fitting human body structure

Abstract

The utility model provides a streamline office chair fitting the human body structure, which comprises a base, the top of the base is fixedly connected with a backrest, the rear side of the backrest is fixedly connected with a fixed box, the inside of the fixed box is rotatably connected with a rotating rod, the outside of the rotating rod is fixedly connected with a gear, and the gear is fixedly connected with a motor. A connecting plate is slidably connected to the interior of the fixed box, a headrest is fixedly connected to the front side of the connecting plate, a telescopic column is fixedly connected to the bottom of the headrest, a rack is fixedly connected to the inner wall of the right side of the connecting plate, a rotating circular plate is fixedly connected to the exterior of a rotating rod, and a clamping ring is fixedly connected to the rear side of the rotating circular plate; and the rear side of the fixed box is fixedly connected with a fixed column. According to the utility model, the lifting of the headrest of the streamline office chair fitting the human body structure is realized, so that the comfort of the office chair is improved, and fatigue and discomfort caused by improper head support are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to office chair technical field especially relates to a kind of office chairs of conforming to human body structure streamline. BACKGROUND

[0002] Office chair is a kind of seat designed for office, for the person who needs to sit in office 6 hours or more even longer every day, ordinary office chair can cause the discomfort of different parts of body, such as waist soreness, neck stiffness etc. Office chair of conforming to human body structure streamline can better support each part of body, comply with human natural curve, reduce the pressure brought by long sitting. For example, the curve design of chair back can conform to the natural bending of human spine, provide good waist support, reduce waist fatigue.

[0003] Through the search, Chinese patent literature publication number: CN221997376U discloses an office chair, including chassis, bearing seat, chair body, telescopic plate and lifting cylinder, lifting cylinder is arranged in the mounting hole of chassis, bearing seat is connected with the top movable end of lifting cylinder, chair body is fixedly installed on bearing seat, telescopic plate is movably arranged below chair body, the bearing seat includes L-shaped steel frame, the bottom of L-shaped steel frame is provided with through hole to make the movable end of lifting cylinder penetrate and fix, the front end of L-shaped steel frame is welded with beam body which is inclined upward in central position, the bottom end of beam body is fixedly installed with U-shaped mounting table, the both ends of U-shaped mounting table extend horizontally backward, the chair body is fixedly installed on the U-shaped mounting table by fastening bolt. Beam body is rotatably installed with adjusting rod, one end of adjusting rod extends to the adjusting switch on the top of lifting cylinder, the chassis includes wheel frame and moving wheel, wheel frame is formed by the circumferentially uniform distribution of multiple rod bodies, moving wheel is arranged on wheel frame.

[0004] The patent specification mentioned above mentions that "by setting the bearing seat to include an L-shaped steel frame, a through hole is formed in the bottom of the L-shaped steel frame to allow the movable end of the lifting cylinder to pass through and be fixed, a beam body is welded to the central position of the front end of the L-shaped steel frame and inclined upward, a U-shaped mounting table is fixedly installed at the bottom end of the beam body, the two ends of the U-shaped mounting table extend horizontally backward, and the chair body is fixedly installed on the U-shaped mounting table through fastening bolts. Thus, the structure of the bearing seat is simplified, the bearing strength is improved, the installation convenience is improved, the operation difficulty is reduced, and better use experience is brought to the user. Although the above patent can improve the bearing strength, in the prior art, the headrest of some office chairs that fit the human body structure and have a streamlined shape is difficult to lift, the body proportions and habits of each person are different, and the height requirements of the headrest of the office chair are also different. Some people may need a slightly higher headrest to relieve neck pressure, and some people may prefer a lower headrest position. The headrest that cannot be lifted cannot meet these personalized needs, reducing the overall comfort of the office chair. Inadaptation can easily cause emotional irritability, further reducing work efficiency. People are likely to become restless and irritable when sitting on an uncomfortable office chair for a long time, which can cause resistance to work. Therefore, in view of the above problems, an office chair that fits the human body structure and has a streamlined shape is provided. Content of the utility model

[0005] The utility model aims at the insufficient of prior art, provides a kind of office chair that fits the human body structure and has a streamlined shape, to improve the headrest of some office chairs that fit the human body structure and have a streamlined shape in prior art is difficult to lift the problem.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] An office chair that fits the human body structure and has a streamlined shape includes a base, a backrest is fixedly connected to the top of the base, a fixed box is fixedly connected to the back of the backrest, a rotating rod is rotatably connected inside the fixed box, a gear is fixedly connected to the outside of the rotating rod, a connecting plate is slidably connected inside the fixed box, a headrest is fixedly connected to the front side of the connecting plate, an extension column is fixedly connected to the bottom of the headrest, a rack is fixedly connected to the right side inner wall of the connecting plate, a rotating disc is fixedly connected to the outside of the rotating rod, a snap ring is fixedly connected to the back of the rotating disc, a fixed column is fixedly connected to the back of the fixed box, a sliding plate is slidably connected inside the fixed column, a return spring is fixedly connected to the back of the sliding plate, a sliding column is slidably connected inside the fixed column, a clamping block is fixedly connected to the front side of the sliding column, a bearing column is rotatably connected to the bottom of the base, and a disassembly assembly is fixedly connected to the bottom of the bearing column.

[0008] Further description of the above technical scheme:

[0009] The dismounting assembly comprises a disc, the top of the disc is fixedly connected to the bottom of the load-bearing column, five supports are fixedly connected to the outer portion of the disc, a support rod is fixedly connected to the bottom of the support, a telescopic rod is rotationally connected to the inner wall of the support rod, a telescopic spring is sleeved to the outer portion of the telescopic rod, a pull rod is rotationally connected to the other side of the telescopic rod, a clamping column is detachably connected to the inner wall of the support rod, a clamping groove is formed in the inner portion of the clamping column, and a wheel is fixedly connected to the bottom of the clamping column.

[0010] As a further description of the above technical solution:

[0011] One side of the pull rod is rotationally connected to the inner wall of the support rod, an arc-shaped opening is formed in the inner portion of the front side of the support rod, and the outer portion of the pull rod is slidingly connected to the inner wall of the arc-shaped opening.

[0012] As a further description of the above technical solution:

[0013] The outer portion of the pull rod is clamped with the inner wall of the clamping groove.

[0014] As a further description of the above technical solution:

[0015] The front side of the clamping block is clamped with the outer portion of the clamping ring, and the outer portion of the sliding plate is slidingly connected to the inner portion of the rear side of the fixed box.

[0016] As a further description of the above technical solution:

[0017] The outer portion of the rotating rod is fixedly connected with a rotating handle, and the bottom of the telescopic column is fixedly connected to the top of the backrest.

[0018] As a further description of the above technical solution:

[0019] The inner portion of the fixed box is fixedly connected with square rods on the left and right sides, square openings are formed in the inner portion of the left and right sides of the connecting plate, and the outer portion of the square rod is slidingly connected to the inner wall of the square opening.

[0020] As a further description of the above technical solution:

[0021] The outer teeth of the gear are in meshing connection with the outer teeth of the rack, and the outer portion of the sliding column is slidingly connected to the inner portion of the rear side of the fixed box.

[0022] The utility model discloses beneficial effects lie in that:

[0023] (1) The utility model discloses a sliding column is pulled, and the sliding column drives the sliding plate to slide, and the sliding plate drives the reset spring to move, and the sliding column drives the clamping block to slide, and then rotates the rotary handle, and the rotary handle drives the rotating rod to rotate, and the rotating rod drives the gear to rotate, and the gear drives the rack to rotate, and the rack drives the connecting plate to move, and the connecting plate drives the headrest to move, and after the sliding column is loosened, the headrest of the office chair of the human body structure streamline type is lifted, and then the comfort of the office chair is improved, and the fatigue and discomfort caused by improper head support are reduced.

[0024] (2) The utility model discloses a rotating pull rod, realizes that the pull rod drives the telescopic rod to rotate, reaches the pull rod drives the telescopic spring to compress, and after the clamping column is separated from the through hole of support rod, the new wheel is placed into the through hole of support rod, and the pull rod is loosened, realizes the replacement of the wheel, and then the replacement of the worn wheel is convenient, and the speed of replacing the wheel is improved.

[0025] In conclusion, the utility model has the advantages of headrest lifting, wheel replacement and the like. DRAWINGS

[0026] Figure 1 It is the whole structure schematic diagram of the utility model;

[0027] Figure 2 It is the structure schematic diagram of the office chair of the human body structure streamline type fixed box inside of the utility model;

[0028] Figure 3 It is the rotating rod structure schematic diagram of the office chair of the human body structure streamline type of the utility model;

[0029] Figure 4 It is Figure 3 The enlarged view of A in

[0030] Figure 5 It is the support rod structure schematic diagram of the office chair of the human body structure streamline type of the utility model. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] In the description of the utility model, it is understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the directions or positional relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0033] Embodiment

[0034] As Figures 2 to 4 shown, the utility model provides a kind of office chair of conforming to human body structure streamline, including base 1, base 1 as the support structure of entire office chair, its main role is to carry the weight of all components in upper portion.Base 1 provides stable base, ensure that the overall structure of chair is firm and reliable, while preventing chair from tilting or collapsing due to center of gravity change in use process.Through the connection with other components (such as load-bearing column 20, disassembly component etc.), base 1 also has certain anti-seismic effect, improves the comfort and safety of chair, and the top of base 1 is fixedly connected with backrest 2, and backrest 2 is fixedly connected with the top of base 1, and its main role is to support the back of user, provide comfortable backrest 2 experience.The design of backrest 2 accords with ergonomics, and through suitable angle and support design, it helps to reduce back fatigue brought by long time sitting posture.The fixed connection of backrest 2 ensures that it does not loosen during use, provides stable support, and the rear side of backrest 2 is fixedly connected with fixed box 3, and fixed box 3 is located at the rear side of backrest 2, and the main role is to accommodate and fix rotating rod 4, gear 5, rack 9 and other movement components.Fixed box 3 plays the role of stable support and force transmission through the combination with these movement components.In addition, the internal structure design of fixed box 3 enables each component to be accurately docked and slid, ensures smooth movement and is not easy to be damaged, and rotating rod 4 is rotatably connected in the inside of fixed box 3, and gear 5 is fixedly connected to the outside of rotating rod 4.

[0035] The inside of the fixed box 3 is slidingly connected with the connecting plate 6, the front side of the connecting plate 6 is fixedly connected with the headrest 8, the rotating rod 4 is rotatably connected with the inside of the fixed box 3, and plays a role in driving movement. Its outside is fixedly connected with the gear 5, and the gear 5 rotates with the rotating rod 4, thereby driving the rack 9 to move. The design of the rotating rod 4 enables the chair to accurately adjust the positions of various components through rotation when adjusting, realizes the lifting adjustment of the headrest 8 and other parts, and the bottom of the headrest 8 is fixedly connected with the telescopic column 7. The headrest 8 is located at the top of the backrest 2 and plays a role in supporting the head of the user. The lifting function of the headrest 8 can be adjusted through the structures such as the connecting plate 6, the rack 9 and the gear 5, so that the user of the chair can adjust the height of the headrest 8 according to individual needs. The comfortable design of the headrest 8 can effectively relieve the fatigue of the neck and shoulders, improve the comfort of the office chair, and the right inner wall of the connecting plate 6 is fixedly connected with the rack 9. The rack 9 functions to convert the rotary motion of the gear 5 into linear motion. It realizes the pushing action on the connecting plate 6 through meshing with the gear 5, thereby driving the lifting adjustment of the headrest 8.

[0036] The outside of the rotating rod 4 is fixedly connected with the rotating circular plate 17, the rear side of the rotating circular plate 17 is fixedly connected with the snap ring 10, the rotating circular plate 17 is connected with the outside of the rotating rod 4, and the rotating handle 16 is rotated to realize rotation. The rotating circular plate 17 functions to drive the rotating rod 4 through rotation, thereby controlling the operation of the entire adjusting device. The rotating circular plate 17 makes the adjusting process more convenient and provides an efficient headrest 8 adjustment mode. The rear side of the rotating circular plate 17 is fixedly connected with the snap ring 10, the rear side of the fixed box 3 is fixedly connected with the fixed column 11, the inside of the fixed column 11 is slidingly connected with the sliding plate 12, the rear side of the sliding plate 12 is fixedly connected with the return spring 13, the fixed column 11 is located at the rear side of the fixed box 3 and plays a role in supporting the sliding plate 12 and the sliding column 14. The fixed column 11 is internally slidingly connected, thereby ensuring the stability and accuracy of the sliding plate 12 and the sliding column 14. Through the design of the fixed column 11, the sliding plate 12 and the sliding column 14 can move smoothly, thereby realizing the adjustment function of the entire chair. The main function of the return spring 13 is to push the sliding plate 12 back to the initial position through the elastic force, thereby ensuring that the adjusting device of the chair will not be stuck during the adjustment process. The inside of the fixed column 11 is slidingly connected with the sliding column 14, the sliding column 14 is slidingly connected with the rear side of the fixed box 3, and mainly functions to drive the sliding of the clamping block 15. Through the forward and backward movement of the sliding column 14, the lifting function of the headrest 8 can be controlled. When the sliding column 14 is pulled, it will push the sliding plate 12 and simultaneously drive the clamping block 15 to move, thereby accurately adjusting the position of the headrest 8. The front side of the sliding column 14 is fixedly connected with the clamping block 15, the bottom of the base 1 is rotatably connected with the bearing column 20, and the bottom of the bearing column 20 is fixedly connected with the disassembly assembly.

[0037] Referring to Figure 1 ,Figure 5 The disassembly assembly includes a disc 21 fixedly connected at the top of the load-bearing column 20 fixedly connected at the bottom of the base 1, which is one of the support core components of the office chair, and the load-bearing column 20 bears the weight of the entire chair. Through the rotary connection, the load-bearing column 20 provides stable support and ensures that the chair can withstand different weights and pressure changes, ensuring the stability of the chair during long-term use. The outer part of the disc 21 is fixedly connected with five supports 22, the bottom of the support 22 is fixedly connected with a support rod 29, the inner wall of the support rod 29 is rotatably connected with a telescopic rod 23, the outer part of the telescopic rod 23 is sleeved with a telescopic spring 24, the other side of the telescopic rod 23 is rotatably connected with a pull rod 25, and the pull rod 25 is rotatably connected with the inner wall of the support rod 29. When operating, the telescopic rod 23 and the telescopic spring 24 are driven. The function of the pull rod 25 is to unlock the clamping column 26 by rotating, so that it is separated from the through hole of the support rod 29, thereby facilitating the disassembly and replacement of the wheels. The inner wall of the support rod 29 is detachably connected with the clamping column 26, the inner part of the clamping column 26 is provided with a clamping groove 27, the bottom of the clamping column 26 is fixedly connected with a wheel 28, and the disassembly assembly includes the disc 21 and the supports 22, the support rod 29, the telescopic rod 23, the telescopic spring 24, the pull rod 25 and the clamping column 26, etc. connected thereto. The main function is to realize the replacement of the wheels at the bottom of the chair. By rotating the pull rod 25, the telescopic rod 23 is pulled to compress the telescopic spring 24, and the disassembly assembly can conveniently take out the old wheels and replace new wheels, ensuring that the user can easily complete the replacement operation of the wheels.

[0038] Referring to Figures 3 to 5 One side of the pull rod 25 is rotatably connected to the inner wall of the support rod 29, the front side of the support rod 29 is provided with an arc-shaped opening, the outer part of the pull rod 25 is slidably connected to the inner wall of the arc-shaped opening, the outer part of the pull rod 25 is engaged with the inner wall of the clamping groove 27, the front side of the clamping block 15 is engaged with the outer part of the clamping ring 10, the outer part of the sliding plate 12 is slidably connected to the inner part of the rear side of the fixed box 3, the outer part of the rotating rod 4 is fixedly connected with a rotating handle 16, and the rotating handle 16 is connected to the outer part of the rotating rod 4. The user adjusts each part of the chair by rotating the handle 16. The design of the rotating handle 16 simplifies the adjustment process, so that the user can adjust the height and other parameters of the chair by simple rotation operation, greatly improving the usability of the chair. The bottom of the telescopic column 7 is fixedly connected to the top of the backrest 2, the inner part of the fixed box 3 is fixedly connected with a square rod 19 on the left and right sides, the inner part of the connecting plate 6 is provided with a square opening 18 on the left and right sides, the outer part of the square rod 19 is slidably connected to the inner wall of the square opening 18, the outer teeth of the gear 5 are meshingly connected with the outer teeth of the rack 9, and the outer part of the sliding column 14 is slidably connected to the inner part of the rear side of the fixed box 3.

[0039] Working steps

[0040] Step one, by pulling the sliding column 14, the sliding column 14 drives the sliding plate 12 to slide, the sliding plate 12 drives the reset spring 13 to move, so that the sliding column 14 drives the clamping block 15 to slide, then rotating the rotary handle 16, the rotary handle 16 drives the rotating rod 4 to rotate, the rotating rod 4 drives the gear 5 to rotate, the gear 5 drives the rack 9 to rotate, the rack 9 drives the connecting plate 6 to move, the connecting plate 6 drives the headrest 8 to move, after releasing the sliding column 14, under the action of the reset spring 13, the reset spring 13 drives the sliding plate 12 to slide, the sliding plate 12 drives the clamping block 15 to move, the headrest 8 of the office chair which is fitted to the human body structure streamline is realized to be lifted, and then the comfort of the office chair is improved, fatigue and discomfort caused by improper head support are reduced.

[0041] Step two, when the wheel needs to be replaced, rotating the pull rod 25, the pull rod 25 drives the telescopic rod 23 to rotate, the pull rod 25 drives the telescopic spring 24 to compress, after the clamping column 26 is separated from the through hole of the supporting rod 29, the new wheel is placed in the through hole of the supporting rod 29, the pull rod 25 is released, under the action of the telescopic spring 24, the telescopic spring 24 drives the pull rod 25 to rotate, the wheel 28 is replaced, then the worn wheel 28 is replaced, and the speed of replacing the wheel 28 is improved.

[0042] The above only describes the preferred embodiments of the present application, and does not limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An office chair with a streamlined body-fitting shape, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a backrest (2), the rear side of the backrest (2) is fixedly connected with a fixed box (3), the inside of the fixed box (3) is rotatably connected with a rotating rod (4), the outside of the rotating rod (4) is fixedly connected with a gear (5), the inside of the fixed box (3) is slidably connected with a connecting plate (6), the front side of the connecting plate (6) is fixedly connected with a headrest (8), the bottom of the headrest (8) is fixedly connected with an extension column (7), the right side inner wall of the connecting plate (6) is fixedly connected with a rack (9), the outside of the rotating rod (4) is fixedly connected with a rotating circular plate (17), the rear side of the rotating circular plate (17) is fixedly connected with a clamping ring (10), the rear side of the fixed box (3) is fixedly connected with a fixed column (11), the inside of the fixed column (11) is slidably connected with a sliding plate (12), the rear side of the sliding plate (12) is fixedly connected with a return spring (13), the inside of the fixed column (11) is slidably connected with a sliding column (14), the front side of the sliding column (14) is fixedly connected with a clamping block (15), the bottom of the base (1) is rotatably connected with a bearing column (20), and the bottom of the bearing column (20) is fixedly connected with a dismounting assembly.

2. The office chair of claim 1, wherein: The dismounting assembly comprises a disc (21), the top of the disc (21) is fixedly connected with the bottom of the bearing column (20), the outside of the disc (21) is fixedly connected with five supports (22), the bottom of the support (22) is fixedly connected with a supporting rod (29), the inner wall of the supporting rod (29) is rotatably connected with an extension rod (23), the outside of the extension rod (23) is sleeved with an extension spring (24), the other side of the extension rod (23) is rotatably connected with a pull rod (25), the inner wall of the supporting rod (29) is detachably connected with a clamping column (26), the inside of the clamping column (26) is provided with a clamping groove (27), and the bottom of the clamping column (26) is fixedly connected with a wheel (28).

3. The office chair of claim 2, wherein: One side of the pull rod (25) is rotatably connected with the inner wall of the supporting rod (29), the front side of the supporting rod (29) is internally provided with an arc-shaped opening, and the outside of the pull rod (25) is slidably connected with the inner wall of the arc-shaped opening.

4. The office chair of claim 2, wherein: The outside of the pull rod (25) is clamped with the inner wall of the clamping groove (27).

5. The streamlined office chair that fits the human body structure according to claim 1, characterized in that: The front side of the clamping block (15) is clamped with the outside of the clamping ring (10), and the outside of the sliding plate (12) is slidably connected with the rear side inside of the fixed box (3).

6. The office chair of claim 1, wherein: The outside of the rotating rod (4) is fixedly connected with a rotating handle (16), and the bottom of the extension column (7) is fixedly connected with the top of the backrest (2).

7. The office chair of claim 1, wherein: The inside of the fixed box (3) is fixedly connected with square rods (19) on the left and right sides, the inside of the connecting plate (6) is provided with square openings (18) on the left and right sides, and the outside of the square rod (19) is slidably connected with the inner wall of the square opening (18).

8. The office chair of claim 1, wherein: The outside teeth of the gear (5) are in meshing connection with the outside teeth of the rack (9), and the outside of the sliding column (14) is slidably connected with the rear side inside of the fixed box (3).

Images