Backrest movable mechanical part

Abstract

The utility model discloses a backrest movable mechanical part which comprises a fixing plate, the fixing plate is provided with an adjusting groove, a sliding shaft is connected in the adjusting groove in a sliding mode, the sliding shaft is connected with a rotating plate in a sleeved mode, gears are integrally connected to the two sides of the rotating plate, and limiting pieces for limiting rotation of the gears are arranged on the inner side of the fixing plate. The adjusting device has the advantage of being convenient to adjust.

Description

Technical Field

[0001] This utility model relates to the field of backrest accessories, specifically a movable mechanical component for a backrest. Background Technology

[0002] Currently, vehicle seats are equipped with adjustable height and backrest angles to achieve a more comfortable seating experience. For example, mechanical, electric, or hydraulic methods are used to raise or lower the seat height, and angle adjusters are used to adjust the backrest angle. However, current seat backrest angle adjustments are mostly manual, which often results in slow adjustment speeds, a heavy feel, and inconvenient operation. Utility Model Content

[0003] The purpose of this utility model is to provide a movable mechanical component for a backrest to solve the problems mentioned in the background art, which has the advantage of being easy to adjust.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a movable mechanical component for a backrest, including a fixed plate, the fixed plate being provided with an adjustment groove, a sliding shaft being slidably connected in the adjustment groove, a rotating plate being sleeved on the sliding shaft, gears being integrally connected to both sides of the rotating plate, and a limiting member for restricting the rotation of the gears being provided on the inner side of the fixed plate.

[0005] As a further embodiment of this utility model: the limiting member includes a fixed shaft that is fixedly connected to the middle part of the fixed plate.

[0006] As a further improvement of this utility model: the fixed shaft is sleeved with a spring, and the spring is fixedly connected to the sliding shaft.

[0007] As a further embodiment of this utility model: the fixed shaft is sleeved with an adjusting plate, the adjusting plate is provided with an elongated groove for accommodating the fixed shaft, the adjusting plate is sleeved on the movable shaft, and the movable shaft is sleeved with two torsion springs, one end of the torsion spring is connected to the adjusting plate, and the other end of the torsion spring is connected to the rotating plate.

[0008] As a further improvement of this utility model: the adjusting plate is provided with a through groove that passes through the adjusting plate, and one end of the torsion spring passes through the through groove.

[0009] By adopting the above technical solution, the through groove serves to limit the movement of the torsion spring.

[0010] As a further improvement of this utility model, both the adjusting plate and the rotating plate are provided with snap-fit ​​grooves.

[0011] By adopting the above technical solution, the snap-fit ​​groove facilitates the snap-fit ​​of the adjustment plate and the rotating plate with external objects.

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

[0013] Pressing the adjusting plate moves the sliding shaft within the adjusting groove, thereby moving the rotating plate mounted on the sliding shaft. During this process, the fixed shaft remains within the long groove, limiting the movement trajectory of the adjusting plate. After the rotating plate moves, it drives the fixed plate gear to move, causing the gear to separate from the fixed shaft. At this point, the gear is no longer restricted by the fixed shaft and can rotate freely. After adjusting the angle as needed, the adjusting plate is no longer pressed. Under the action of the spring, the adjusting plate will return to its original position, thereby driving the sliding shaft to return to its original position within the adjusting groove, and then driving the adjusting plate to return to its original position. The movement of the adjusting plate drives the gear to move until the gear re-engages with the fixed shaft, ending the dynamic adjustment. The adjusting plate and the fixed plate are then positioned at the desired angle. The torsion spring ensures that when the gear is not engaged with the fixed shaft, the adjusting plate returns to its original state under the action of the torsion spring. Therefore, when rotating the rotating plate, it is necessary to overcome the force of the torsion spring. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0015] Figure 2 This is a top view of an embodiment;

[0016] Figure 3 This is a bottom view of an embodiment;

[0017] Figure 4 for Figure 1 A structural diagram from another perspective;

[0018] Figure 5 This is a schematic diagram of the structure after removing the adjustment plate in the embodiment;

[0019] Figure 6 This is a schematic diagram of the rotating plate in the embodiment;

[0020] Figure 7 This is a schematic diagram of the adjustment plate in the embodiment.

[0021] In the diagram: 1. Fixed plate; 2. Adjusting groove; 3. Sliding shaft; 4. Rotating plate; 5. Gear; 6. Fixed shaft; 7. Spring; 8. Adjusting plate; 9. Long groove; 10. Torsion spring; 11. Through groove; 12. Snap-fit ​​groove. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model are described clearly and completely below. 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 skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In this embodiment of the utility model,

[0024] A backrest moving mechanical component, such as Figures 1-7 As shown, it includes a fixed plate 1, the fixed plate 1 is provided with an adjustment groove 2, a sliding shaft 3 is slidably connected in the adjustment groove 2, a rotating plate 4 is sleeved on the sliding shaft 3, gears 5 are integrally connected to both sides of the rotating plate 4, and a limiting member is provided on the inner side of the fixed plate 1 to restrict the rotation of the gears 5.

[0025] The limiting component includes a fixed shaft 6 that is fixedly connected to the middle of the fixed plate 1.

[0026] The fixed shaft 6 is fitted with a spring 7, and the spring 7 is fixedly connected to the sliding shaft 3.

[0027] The fixed shaft 6 is sleeved with an adjusting plate 8. The adjusting plate 8 is provided with a long groove 9 for accommodating the fixed shaft 6. The adjusting plate 8 is sleeved on the moving shaft. The moving shaft is sleeved with two torsion springs 10. One end of the torsion spring 10 is connected to the adjusting plate 8, and the other end of the torsion spring 10 is connected to the rotating plate 4.

[0028] The adjusting plate 8 is provided with a through groove 11 that passes through the adjusting plate 8, and one end of the torsion spring 10 passes through the through groove 11.

[0029] Both the adjusting plate 8 and the rotating plate 4 are provided with snap-fit ​​grooves 12.

[0030] Working principle:

[0031] Pressing the adjusting plate 8 moves the sliding shaft 3 within the adjusting groove 2, thereby moving the rotating plate 4 mounted on the sliding shaft 3. During this process, the fixed shaft 6 remains within the elongated groove 9, limiting the movement trajectory of the adjusting plate 8. After the rotating plate 4 moves, it moves the gear 5 of the fixed plate 1, causing the gear 5 to separate from the fixed shaft 6. At this point, the gear 5 is no longer restricted by the fixed shaft 6 and can rotate freely. After adjusting the angle as needed, the adjusting plate 8 is no longer pressed. Under the action of the spring 7, the adjusting plate 8 returns to its original position, thereby moving the sliding shaft 3 within the adjusting groove 2 back to its original position, and then moving the adjusting plate 8 back to its original position. The movement of the adjusting plate 8 moves the gear 5 until the gear 5 re-engages with the fixed shaft 6, ending the dynamic adjustment. The adjusting plate 8 and the fixed plate 1 are then positioned at the desired angle. The torsion spring 10 ensures that when the gear 5 is not engaged with the fixed shaft 6, the adjusting plate 8 returns to its original state under the action of the torsion spring 10. Therefore, when rotating the rotating plate 4, it is necessary to overcome the force of the torsion spring 10.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A backrest kinematic mechanism comprising a fixed plate (1), characterized in that: The fixed plate (1) is provided with an adjustment groove (2), and a sliding shaft (3) is slidably connected in the adjustment groove (2). A rotating plate (4) is sleeved on the sliding shaft (3). Gears (5) are integrally connected to both sides of the rotating plate (4). A limiting member for restricting the rotation of the gears (5) is provided on the inner side of the fixed plate (1).

2. The backrest living mechanism component of claim 1, wherein: The limiting member includes a fixed shaft (6) that is fixedly connected to the middle of the fixed plate (1).

3. The backrest living mechanism component of claim 2, wherein: The fixed shaft (6) is fitted with a spring (7), and the spring (7) is fixedly connected to the sliding shaft (3).

4. The backrest living mechanism component of claim 3, wherein: The fixed shaft (6) is fitted with an adjusting plate (8), the adjusting plate (8) is provided with a long groove (9) for accommodating the fixed shaft (6), the adjusting plate (8) is fitted on the moving shaft, the moving shaft is fitted with two torsion springs (10), one end of the torsion spring (10) is connected to the adjusting plate (8), and the other end of the torsion spring (10) is connected to the rotating plate (4).

5. The backrest living mechanism component of claim 4, wherein: The adjusting plate (8) is provided with a through groove (11) that passes through the adjusting plate (8), and one end of the torsion spring (10) passes through the through groove (11).

6. The backrest living mechanism component of claim 4, wherein: Both the adjusting plate (8) and the rotating plate (4) are provided with snap-fit ​​grooves (12).

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