Automobile seat rear placing device
By designing a rear seat folding device for automobiles, and utilizing a gearbox and motor drive system to adjust the backrest angle, the problem of existing seats being unable to adapt to different seating habits is solved, improving seating comfort and avoiding fatigue in the lower back and back.
Patent Information
- Application Number
- CN202423301593.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing rear seats of cars are of a one-piece structure, and the backrest angle cannot be adjusted according to needs, which causes passengers to sit in an upright position, which can easily lead to fatigue in the waist and back during long periods of sitting.
A rear seat folding device for automobiles was designed, which uses a gearbox and motor drive system to adjust the angle of the support frame, allowing passengers to adjust the backrest support angle according to their needs.
Passengers can adjust the backrest angle according to their own needs to adapt to different riding habits and avoid fatigue in the waist and back.
Smart Images

Figure CN223919158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat technology, and more specifically, to a rear seat folding device for automobiles. Background Technology
[0002] Car seats are an important part of a car's interior, typically consisting of headrests, backrests, and seat cushions. Some seats also include armrests, seat adjustment buttons, and seatbelt systems. Early car seats used soft materials like cotton as filling, with backrests constructed from wooden strips and planks. Current rear seats are of a single, fixed design, lacking adjustable backrest angles. This means they may not be suitable for passengers with different seating habits, and passengers are often in a relatively upright position, which can easily lead to lower back and back fatigue during long journeys. Utility Model Content
[0003] The main purpose of this utility model is to provide a car seat rear seat folding device, which can effectively solve the problem that the rear seats of cars in the background art are of an integral structure and cannot adjust the backrest angle according to needs. This makes it impossible for existing car rear seats to adapt to passengers with different sitting habits. At the same time, the passenger's body will be in a relatively upright position, which can easily lead to fatigue in the waist and back after sitting for a long time.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A car seat rear seat folding device includes a first gearbox, a horizontal shaft rotatably mounted between the two sides of the inner wall of the first gearbox, and a first gear sleeved and fixed on one side of the horizontal shaft.
[0006] A drive assembly for driving the horizontal shaft to rotate is provided on one side of the first gearbox;
[0007] A support frame is fitted and fixed on the side of the horizontal shaft away from the first gear.
[0008] Preferably, the drive assembly includes a driven shaft, which is rotatably mounted between the two sides of the inner wall of the first gearbox. A second gear is sleeved and fixed on one side of the driven shaft, and the second gear meshes with the first gear.
[0009] A second gearbox is fixedly installed at one end of the driven shaft. One end of the driven shaft extends into the interior of the second gearbox and is fitted with a first bevel gear. A control structure for controlling the rotation of the driven shaft is provided on one side of the second gearbox.
[0010] Preferably, the control structure includes a vertical shaft, which is rotatably mounted between the two sides of the inner wall of the second gearbox. A second bevel gear is sleeved and fixed on one side of the vertical shaft, and the second bevel gear meshes with the first bevel gear.
[0011] A motor is fixedly mounted on the lower surface of the second gearbox, and the lower end of the vertical shaft passes through the second gearbox and is fixedly connected to the output shaft end of the motor.
[0012] Preferably, the lower end of the support frame is provided with a base, and one side of the upper surface of the base is provided with a support structure for support.
[0013] Preferably, the support structure includes two support plates, which are respectively fixedly installed on both sides of the base, and the support frame is disposed between the two support plates.
[0014] Preferably, each of the two support plates has a support hole through it on one side of its opposite surface, and a rotating ring is rotatably installed in each of the two support holes via a bearing, with the horizontal axis extending into the interior of the corresponding rotating ring.
[0015] The support frame is fixedly installed between the two rotating rings.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] (1) The staff starts the motor, which drives the vertical shaft to rotate. Under the meshing action of the second bevel gear and the first bevel gear, the first bevel gear drives the driven shaft to rotate, which in turn drives the second gear to rotate. Under the meshing action of the second gear and the first gear, the horizontal shaft drives the support frame to rotate, so that the user can adjust the angle of the support frame according to their own needs, thereby adapting to different customers and avoiding lumbar fatigue. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a car seat rear seat folding device according to the present invention;
[0019] Figure 2 This is a top view of a car seat rear seat folding device according to the present invention;
[0020] Figure 3 This utility model relates to a car seat rear seat folding device. Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0021] Figure 4 This utility model relates to a car seat rear seat folding device. Figure 3 Enlarged schematic diagram of the structure at point A;
[0022] Figure 5This utility model relates to a car seat rear seat folding device. Figure 3 Enlarged schematic diagram of the structure at point B.
[0023] In the diagram: 1. First gearbox; 2. Horizontal shaft; 3. First gear; 4. Drive assembly; 401. Driven shaft; 402. Second gear; 403. Second gearbox; 404. First bevel gear; 405. Control structure; 4051. Vertical shaft; 4052. Second bevel gear; 4053. Motor; 5. Support frame; 6. Base; 7. Support structure; 701. Support plate; 8. Support hole; 9. Rotary ring. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0025] like Figures 1-5 As shown, a car seat rear seat folding device includes a first gearbox 1, a horizontal shaft 2 is rotatably mounted between the two sides of the inner wall of the first gearbox 1, and a first gear 3 is sleeved and fixed on one side of the shaft body of the horizontal shaft 2;
[0026] A drive assembly 4 for driving the horizontal shaft 2 to rotate is provided on one side of the first gearbox 1;
[0027] A support frame 5 is fixedly mounted on the side of the horizontal shaft 2 away from the first gear 3.
[0028] Drive assembly 4 includes driven shaft 401, which is rotatably mounted between the two sides of the inner wall of the first gearbox 1. A second gear 402 is sleeved and fixed on one side of the shaft of driven shaft 401, and the second gear 402 meshes with the first gear 3.
[0029] A second gearbox 403 is fixedly installed at one end of the driven shaft 401. One end of the driven shaft 401 extends into the interior of the second gearbox 403 and is fitted with a first bevel gear 404. A control structure 405 for controlling the rotation of the driven shaft 401 is provided on one side of the second gearbox 403.
[0030] The control structure 405 includes a vertical shaft 4051, which is rotatably mounted between the two sides of the inner wall of the second gearbox 403. A second bevel gear 4052 is sleeved and fixed on one side of the shaft of the vertical shaft 4051, and the second bevel gear 4052 meshes with the first bevel gear 404.
[0031] A motor 4053 is fixedly mounted on the lower surface of the second gearbox 403, and the lower end of the vertical shaft 4051 passes through the second gearbox 403 and is fixedly connected to the output shaft end of the motor 4053.
[0032] The operator starts the motor 4053, causing its output shaft to drive the vertical shaft 4051 to rotate. Under the meshing action of the second bevel gear 4052 and the first bevel gear 404, the first bevel gear 404 drives the driven shaft 401 to rotate, which in turn drives the second gear 402 to rotate. Under the meshing action of the second gear 402 and the first gear 3, the horizontal shaft 2 drives the support frame 5 to rotate, allowing the user to adjust the angle of the support frame 5 according to their own needs, thereby adapting to different customers and avoiding lower back fatigue.
[0033] In another embodiment of this utility model, a base 6 is provided at the lower end of the support frame 5, and a support structure 7 for support is provided on one side of the upper surface of the base 6.
[0034] The support structure 7 includes two support plates 701, which are fixedly installed on both sides of the base 6, and the support frame 5 is arranged between the two support plates 701.
[0035] Two support plates 701 have support holes 8 through their respective surfaces. A rotating ring 9 is installed in each of the two support holes 8 via a bearing. The horizontal shaft 2 extends into the corresponding rotating ring 9.
[0036] The support frame 5 is fixedly installed between the two rotating rings 9.
[0037] By setting up the rotating ring 9 and the support plate 701, the support plate 701 can support the support frame 5 without affecting its rotation, making the support frame 5 more stable when rotating.
[0038] The working principle of a car seat rear seat folding device:
[0039] When in use, the operator starts the motor 4053, causing its output shaft to drive the vertical shaft 4051 to rotate. Under the meshing action of the second bevel gear 4052 and the first bevel gear 404, the first bevel gear 404 drives the driven shaft 401 to rotate, which in turn drives the second gear 402 to rotate. Under the meshing action of the second gear 402 and the first gear 3, the horizontal shaft 2 drives the support frame 5 to rotate, allowing the user to adjust the angle of the support frame 5 according to their own needs, thereby adapting to different customers and avoiding lower back fatigue.
[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A device for reclining the rear seats of a motor vehicle, comprising a first gear box (1), characterized in that: The horizontal shaft (2) is rotatably installed between the inner walls of the first gear box (1), and a first gear (3) is fixedly sleeved on one side of the shaft body of the horizontal shaft (2); The first gear box (1) is provided with a driving assembly (4) for driving the horizontal shaft (2) to rotate on one side; The support frame (5) is fixedly sleeved on the side of the shaft body of the horizontal shaft (2) away from the first gear (3); The driving assembly (4) comprises a driven shaft (401), the driven shaft (401) is rotatably installed between the inner walls of the first gear box (1), and a second gear (402) is fixedly sleeved on one side of the shaft body of the driven shaft (401), the second gear (402) is engaged with the first gear (3); The driven shaft (401) is fixedly installed at one end of the shaft body of the driven shaft (401), and a first bevel gear (404) is fixedly sleeved on the driven shaft (401) extending into the second gear box (403), and a control structure (405) is arranged on one side of the second gear box (403) for controlling the rotation of the driven shaft (401); The control structure (405) comprises a vertical shaft (4051), the vertical shaft (4051) is rotatably installed between the inner walls of the second gear box (403), and a second bevel gear (4052) is fixedly sleeved on one side of the shaft body of the vertical shaft (4051), the second bevel gear (4052) is engaged with the first bevel gear (404); The second gear box (403) is fixedly installed on the lower surface of the second gear box (403), and the lower end of the vertical shaft (4051) penetrates through the second gear box (403) and is fixedly connected with the output shaft end of the motor (4053).
2. The device according to claim 1, wherein: The support frame (5) is provided with a base (6) at the lower end, and a support structure (7) is arranged on one side of the upper surface of the base (6) for supporting.
3. A device for reclining the rear seats of a vehicle according to claim 2, characterized in that: The support structure (7) comprises two support plates (701), and the two support plates (701) are fixedly installed on both sides of the base (6), and the support frame (5) is arranged between the two support plates (701).
4. The device according to claim 3, wherein: The support holes (8) are formed on the opposite side surfaces of the two support plates (701), and the rotating rings (9) are rotatably installed in the support holes (8) through bearings. The support frame (5) is fixedly installed between the two rotating rings (9).