Seat structure with adjustable backrest
By combining the rotating adjustment handle with the motor-driven threaded shaft, the problems of inaccurate seat back adjustment and deformation are solved, achieving stable adjustment and continuous support.
Patent Information
- Application Number
- CN202422645127.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing seat back adjustment methods cannot precisely control the angle, and the backrest is prone to deformation after prolonged use, affecting the support effect.
By rotating the adjustment handle, the rotating shaft and rotating sleeve can be driven to achieve stable adjustment within a small range; when the backrest deforms, the motor drives the threaded shaft to move the sleeve and rotating plate to maintain the support effect.
It achieves stable backrest adjustment and effective support, ensuring that the seat maintains its optimal performance during long-term use.
Smart Images
Figure CN223452993U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to chair technical field, concretely is a backrest adjustable chair structure. BACKGROUND
[0002] At present, the seat on market is various, its seat generally has the adjustment function, its adjustment mode adopts hand press handle, separates through buckle and backrest, people through backrest extrusion backrest of the chair and carry out the adjustment of backrest, its adjustment mode has the following disadvantages: first, people backrest extrusion seat backrest, its adjustment angle cannot be controlled, often appears instantaneous adjustment excessive situation, backrest cannot reach the angle of people most comfortable, second, seat backrest although has certain camber, is used for supporting people's back, but in long -term use process, the soft pad of backrest is easy to deform, gradually support effect is worse and worse, therefore, aiming at above -mentioned problem puts forward a backrest adjustable chair structure. UTILITARIAN CONTENT
[0003] The utility model discloses a backrest adjustable chair structure to solve the problems in the background art.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] As an optional scheme of the backrest adjustable chair structure, the backrest adjustable chair structure comprises a seat, an adjusting back and a backrest,
[0006] One side of the seat is rotatably connected with the adjusting back, and one side of the adjusting back is fixedly connected with a supporting mechanism, the other end of the supporting mechanism is fixedly connected with the backrest, and one side of the backrest is fixedly connected with the adjusting back.
[0007] The side of the seat is rotatably connected with an adjusting mechanism, and the other end of the adjusting mechanism is rotatably connected with the adjusting back.
[0008] The adjusting mechanism comprises a rotating frame, an adjusting handle and a rotating shaft, the outside of the rotating frame is rotatably connected with the seat, one side of the adjusting handle is fixedly connected with the rotating shaft, the other end of the rotating shaft is fixedly connected with a rotating sleeve, the inside of the rotating sleeve is spirally connected with a moving rod, the other side of the moving rod is rotatably connected with a rotating column, and one side of the rotating column is fixedly connected with the adjusting back.
[0009] As an optional scheme of the backrest adjustable chair structure, the outside of the rotating shaft is fixedly connected with a rotating disc, and the outside of the rotating disc is rotatably connected with the rotating frame.
[0010] The seat on the market is various, and the seat generally has an adjusting function, the adjusting mode adopts hand pressing a handle, the seat back is separated from a backrest through buckling, people adjust the backrest by extruding the backrest of the seat, and the adjusting mode has the following disadvantages: firstly, people extrude the seat back, the adjusting angle cannot be controlled, instant over-adjustment often occurs, the backrest cannot reach the most comfortable angle of people, and secondly, the seat back has a certain curvature for supporting the back of people, but the soft pad of the backrest is prone to deformation in a long-term use process, and the supporting effect is gradually poorer, the seat back is controlled to be slowly and stably adjusted in a small range through the hand-held rotating adjusting handle, the adjusting back is stably adjusted, and the adjusting back can quickly reach the best state for use of the worker.
[0011] As an optional solution of the backrest-adjustable seat structure, the supporting mechanism comprises an installation frame, a motor and a threaded shaft, the outer side of the installation frame is fixedly connected with the adjusting back, the inner side of the installation frame is fixedly connected with the motor, the main shaft tail end of the motor is fixedly connected with the threaded shaft, the other end of the threaded shaft is rotationally connected with the installation frame, the outer side of the threaded shaft is spirally connected with a moving sleeve, the outer side of the moving sleeve is rotationally connected with a rotating plate, the other end of the rotating plate is rotationally connected with a moving block, the other end of the moving block is fixedly connected with a supporting plate, and the outer side of the supporting plate is fixedly connected with the backrest.
[0012] As an optional solution of the backrest-adjustable seat structure, the outer side of the moving block is slidingly connected with the installation frame.
[0013] As an optional solution of the backrest-adjustable seat structure, the surface of the threaded shaft is provided with threads, and the threads on the two sides of the threaded shaft are oppositely arranged.
[0014] As an optional solution of the backrest-adjustable seat structure, the number of the moving sleeve and the rotating plate is two.
[0015] When the seat is used for a long time, the backrest may be deformed, thereby affecting the supporting effect on the back, at this time, the motor is started to drive the threaded shaft to rotate, the moving sleeve on the outer side of the threaded shaft is moved to conveniently drive the rotating plate to move the moving block, and the supporting plate plays an effective supporting role on the backrest, thereby guaranteeing the supporting role of the backrest on the back of people.
[0016] Compared with the prior art, the backrest-adjustable seat structure has the following beneficial effects:
[0017] The utility model discloses a slow stable adjustment of small -range is carried out to the mobile pole through the rotation of the rotating sleeve, and then the adjustment back can be quickly in the best state of use of the staff, and the adjustment back can be quickly in the best state of use of the staff.
[0018] When the seat is used for a long time, the backrest can be deformed, and then the support effect on the back is affected, at this time, the rotating plate drives the moving block to move through the rotation of the moving sleeve on the outer side of the threaded shaft driven by the motor, and then the support plate plays an effective supporting role on the backrest, and the support effect of the backrest on the back of people is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the whole structure schematic diagram of the utility model;
[0020] Figure 2 It is the side view of the utility model;
[0021] Figure 3 It is the structure schematic diagram of the adjusting mechanism of the utility model;
[0022] Figure 4 It is the structure schematic diagram of the supporting mechanism of the utility model.
[0023] In the drawing: 1, seat; 2, adjustment back; 3, backrest; 4, adjusting mechanism; 401, rotating frame; 402, adjusting handle; 403, rotating shaft; 404, rotating disc; 405, rotating sleeve; 406, mobile pole; 407, rotating column; 5, supporting mechanism; 501, mounting frame; 502, motor; 503, threaded shaft; 504, moving sleeve; 505, rotating plate; 506, moving block; 507, support plate. DETAILED DESCRIPTION
[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0025] Embodiment 1: please refer to Figure 1 、 Figure 2 and Figure 3 The utility model provides a technical scheme:
[0026] A backrest-adjustable seat structure, comprising a seat 1, an adjustment back 2 and a backrest 3,
[0027] The adjusting back 2 is rotatably connected to one side of the seat 1, and the adjusting back 2 is fixedly connected with a supporting mechanism 5, one end of the supporting mechanism 5 is fixedly connected with a backrest 3, and the other side of the backrest 3 is fixedly connected with the adjusting back 2;
[0028] The adjusting mechanism 4 is rotatably connected to one side of the seat 1, and the other end of the adjusting mechanism 4 is rotatably connected with the adjusting back 2;
[0029] The adjusting mechanism 4 comprises a rotating frame 401, an adjusting handle 402 and a rotating shaft 403, the outer side of the rotating frame 401 is rotatably connected with the seat 1, one side of the adjusting handle 402 is fixedly connected with the rotating shaft 403, the other end of the rotating shaft 403 is fixedly connected with a rotating sleeve 405, the inside of the rotating sleeve 405 is spirally connected with a moving rod 406, the other side of the moving rod 406 is rotatably connected with a rotating column 407, and one side of the rotating column 407 is fixedly connected with the adjusting back 2.
[0030] The outer side of the rotating shaft 403 is fixedly connected with a rotating disc 404, and the outer side of the rotating disc 404 is rotatably connected with the rotating frame 401.
[0031] At present, there are various kinds of seats on the market, and the seats generally have adjusting function, the adjusting mode adopts hand pressing handle, the backrest is separated from the chair through buckle, and people adjust the backrest by extruding the backrest of the chair, the adjusting mode has the following disadvantages: first, people extrude the backrest of the seat with the back, the adjusting angle cannot be controlled, and the backrest cannot reach the most comfortable angle of people, second, the backrest of the seat has a certain curvature for supporting the back of people, but in the long-term use process, the soft pad of the backrest is easy to deform, and gradually the supporting effect becomes worse, in use, the power is turned on, the adjusting handle 402 is rotated by hand, the rotating shaft 403 is driven to rotate by the adjusting handle 402, the rotating sleeve 405 is driven to rotate by the rotating shaft 403, so that the moving rod 406 is controlled to be slowly and stably adjusted in a small range, and then the adjusting back 2 is stably adjusted, so that the adjusting back 2 can quickly reach the best state for use of the staff;
[0032] In the embodiment, the rotating disc 404 can ensure rotation with the rotating frame 401, and ensure that the adjusting handle 402 will not be displaced, and when adjusting the adjusting back 2, the rotating frame 401 can rotate by itself.
[0033] Embodiment 2: The embodiment is an improvement on embodiment 1, please refer to Figure 3Specifically, the supporting mechanism 5 comprises a mounting frame 501, a motor 502 and a threaded shaft 503, the outer side of the mounting frame 501 is fixedly connected with the adjusting back 2, the inner side of the mounting frame 501 is fixedly connected with the motor 502, the terminal end of the main shaft of the motor 502 is fixedly connected with the threaded shaft 503, the other end of the threaded shaft 503 is rotationally connected with the mounting frame 501, the outer side of the threaded shaft 503 is spirally connected with a moving sleeve 504, the outer side of the moving sleeve 504 is rotationally connected with a rotating plate 505, the other end of the rotating plate 505 is rotationally connected with a moving block 506, the other end of the moving block 506 is fixedly connected with a supporting plate 507, and the outer side of the supporting plate 507 is fixedly connected with the backrest 3.
[0034] The outer side of the moving block 506 is slidingly connected with the mounting frame 501.
[0035] The surface of the threaded shaft 503 is provided with threads, and the threads on the two sides of the threaded shaft 503 are oppositely arranged.
[0036] The number of the moving sleeve 504 and the rotating plate 505 is two.
[0037] When the seat is used for a long time, the backrest 3 may be deformed, thereby affecting the supporting effect on the back, at this time, the motor 502 is started to drive the threaded shaft 503 to rotate, the moving sleeve 504 on the outer side of the threaded shaft 503 moves to facilitate the rotating plate 505 to drive the moving block 506 to move, thereby the supporting plate 507 plays an effective supporting role on the backrest 3, and the supporting role of the backrest 3 on the back of people is ensured.
[0038] In the embodiment, since the threads on the two sides of the threaded shaft 503 are oppositely arranged, the threaded shaft 503 is rotated to drive the moving sleeves 504 on the two sides to oppositely or oppositely move, to drive the rotating plate 505 to move, thereby controlling the moving block 506 to drive the supporting plate 507 to move, to support the backrest 3, so as to match the back arc of people, and the effective supporting purpose is achieved.
[0039] It should be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A backrest-adjustable seat structure, characterized in that: comprising a seat (1), an adjusting back (2) and a backrest (3), one side of the seat (1) is rotatably connected with the adjusting back (2), and one side of the adjusting back (2) is fixedly connected with a supporting mechanism (5), the other end of the supporting mechanism (5) is fixedly connected with the backrest (3), and one side of the backrest (3) is fixedly connected with the adjusting back (2); one side of the seat (1) is rotatably connected with an adjusting mechanism (4), and the other end of the adjusting mechanism (4) is rotatably connected with the adjusting back (2); the adjusting mechanism (4) comprises a rotating frame (401), an adjusting handle (402) and a rotating shaft (403), one side of the adjusting handle (402) is fixedly connected with the rotating shaft (403), the other end of the rotating shaft (403) is fixedly connected with a rotating sleeve (405), the inside of the rotating sleeve (405) is spirally connected with a moving rod (406), the other side of the moving rod (406) is rotatably connected with a rotating column (407), and one side of the rotating column (407) is fixedly connected with the adjusting back (2).
2. The seat structure according to claim 1, wherein: one side of the rotating shaft (403) is fixedly connected with a rotating disc (404), and one side of the rotating disc (404) is rotatably connected with the rotating frame (401).
3. The seat structure according to claim 1, wherein: the supporting mechanism (5) comprises a mounting frame (501), a motor (502) and a threaded shaft (503), one side of the mounting frame (501) is fixedly connected with the adjusting back (2), the inside of the mounting frame (501) is fixedly connected with the motor (502), and the main shaft end of the motor (502) is fixedly connected with the threaded shaft (503), the other end of the threaded shaft (503) is rotatably connected with the mounting frame (501), the outside of the threaded shaft (503) is spirally connected with a moving sleeve (504), one side of the moving sleeve (504) is rotatably connected with a rotating plate (505), the other end of the rotating plate (505) is rotatably connected with a moving block (506), the other end of the moving block (506) is fixedly connected with a supporting plate (507), and one side of the supporting plate (507) is fixedly connected with the backrest (3).
4. The seat structure according to claim 3, wherein: one side of the moving block (506) is slidably connected with the mounting frame (501).
5. The seat structure according to claim 3, wherein: the surface of the threaded shaft (503) is provided with threads, and the threads on both sides of the threaded shaft (503) are oppositely arranged.
6. The seat structure according to claim 3, wherein: the number of the moving sleeve (504) and the rotating plate (505) is two.