Seat armrest holding mechanism

Abstract

The utility model relates to the field of automobile equipment, and particularly discloses a seat armrest retaining mechanism which comprises an armrest assembly, an angle adjusting assembly, a retaining assembly, a backrest framework and a cushion framework, an angle adjusting driving motor drives a fixing rod and the backrest framework to rotate relatively, the fixing rod is fixedly connected with the cushion framework, and the retaining assembly is fixedly connected with the cushion framework. The armrest framework is rotationally connected with the backrest framework through an armrest rotating shaft, a rotating gear is fixedly arranged on the armrest rotating shaft, the movable bevel gear and the movable worm rotate on the backrest framework in a limited mode, the movable bevel gear and the fixed bevel gear are in meshed transmission, and the movable worm and the rotating gear are in meshed transmission. One end of the transmission flexible shaft is fixedly connected with the axis of the movable bevel gear, and the other end is fixedly connected with the axis of the movable worm. By arranging the retaining assembly, when the angle of the backrest framework is adjusted, the armrest frameworks adaptively and synchronously rotate through the meshing transmission combinations, and the relative angle between the armrest frameworks and the cushion framework is maintained.

Description

A seat armrest retaining mechanism Technical Field

[0001] This utility model relates to the field of automotive equipment, and in particular to automotive seats. Background Technology

[0002] Currently, many car seats are equipped with armrests to improve passenger comfort. However, existing armrests are typically fixed to the seat back, and the angle between the armrest and the seat back remains constant. Even when the angle between the seat back and the seat cushion changes, the armrest maintains the original angle with the seat back. If a cup is mounted on the armrest, this can lead to spillage of liquids.

[0003] The technical problem to be solved by this application is: how to adjust the angle between the seat armrest and the seat back in order to adapt to the angle between the seat back and the seat cushion. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a seat armrest holding mechanism.

[0005] The technical solution adopted by this utility model is as follows: a seat armrest holding mechanism, including an armrest assembly, an angle adjustment component, a holding component, a backrest frame, and a seat cushion frame. The angle adjustment component includes a fixed rod, a fixed bevel gear, and an angle adjustment drive motor. The angle adjustment drive motor drives the fixed rod to rotate relative to the backrest frame. The fixed rod is fixedly connected to the seat cushion frame. The armrest assembly includes an armrest frame and an armrest pivot. The armrest frame is rotatably connected to the backrest frame through the armrest pivot. The armrest pivot is fixedly provided with a rotating gear. The holding component includes a movable bevel gear, a movable worm gear, and a transmission flexible shaft. The movable bevel gear and the movable worm gear rotate at the upper limit of the backrest frame. The movable bevel gear and the fixed bevel gear mesh and transmit power. The movable worm gear meshes and transmits power with the rotating gear. One end of the transmission flexible shaft is fixedly connected to the axis of the movable bevel gear, and the other end is fixedly connected to the axis of the movable worm gear.

[0006] In some implementations, the fixed end of the angle adjustment drive motor is fixedly connected to the backrest frame, and the output end is fixedly connected to the fixed rod.

[0007] In some embodiments, the backrest frame is provided with a connecting frame, which is located at the bottom of the backrest frame. The movable bevel gear is connected to the connecting frame through a fixing member, and the movable bevel gear rotates at the upper limit of the fixing member.

[0008] In some implementations, a ball bearing shaft is provided between the armrest assembly and the backrest frame, with the armrest shaft passing through the ball bearing shaft.

[0009] In some embodiments, the fixing rod is a square tube, and the inner ring of the fixing bevel gear matches the circumferential surface shape of the fixing rod.

[0010] In some implementations, the movable worm gear is connected to the backrest frame via a fixed bracket, the fixed bracket is fixedly connected to the backrest frame, and the movable worm gear rotates at its upper limit on the fixed bracket.

[0011] In some embodiments, the armrest assembly includes a cup holder located at the end of the armrest frame away from the backrest frame.

[0012] The beneficial effects of this utility model are as follows:

[0013] This type of seat armrest holding mechanism, by setting a holding component, ensures that when the backrest frame is adjusted, the armrest frame rotates adaptively and synchronously through various meshing transmission combinations, maintaining the relative angle between the armrest frame and the seat cushion frame, and preventing liquid from spilling when the armrest holds a cup. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 is a structural diagram showing the hidden part of the backrest frame;

[0016] Figure 3 is an enlarged schematic diagram of the structure labeled A in Figure 2;

[0017] The labels and names in the diagram correspond as follows: 1. Armrest assembly; 2. Angle adjustment component; 4. Backrest frame; 5. Seat cushion frame; 11. Armrest frame; 12. Ratchet box; 13. Cup holder; 14. Armrest pivot; 15. Rotating gear; 21. Fixed rod; 22. Fixed bevel gear; 23. Angle adjustment drive motor; 31. Movable bevel gear; 32. Movable worm gear; 33. Transmission flexible shaft; 34. Fixing component; 35. Fixed bracket; 41. Connecting frame; 42. Ball bearing pivot. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please refer to Figure 1. This utility model provides a technical solution: a seat armrest holding mechanism, including an armrest assembly 1, an angle adjustment component 2, a holding component, a backrest frame 4, and a seat cushion frame 5. The bottom end of the backrest frame 4 is rotatably connected to the seat cushion frame 5. The angle adjustment component 2 is disposed on the backrest frame 4 and is responsible for adjusting the angle between the backrest frame 4 and the seat cushion frame 5. The armrest assembly 1 is disposed on the backrest frame 4, and one end of the armrest assembly 1 is rotatably connected to the backrest frame 4.

[0020] The angle adjustment assembly 2 includes a fixed rod 21, a fixed bevel gear 22, and an angle adjustment drive motor 23. The fixed rod 21 is limited to rotate within the backrest frame 4 and passes through the backrest frame 4, being fixedly connected to the seat cushion frame 5. The backrest frame 4 rotates around the fixed rod 21 on the seat cushion frame 5. The angle adjustment drive motor 23 is a motor with a rotating output end. The fixed end of the angle adjustment drive motor 23 is fixedly connected to the backrest frame 4, and the output end is fixedly connected to the fixed rod 21. Relative rotation occurs between the fixed end and the output end of the angle adjustment drive motor 23, that is, relative rotation occurs between the backrest frame 4 and the fixed rod 21. When the angle adjustment drive motor 23 is working, since the fixed rod 21 and the seat cushion frame 5 are fixed, the angle adjustment drive motor 23 drives the backrest frame 4 to rotate. The fixed bevel gear 22 is fixedly sleeved on the fixed rod 21. To avoid relative radial movement between the fixed rod 21 and the fixed bevel gear 22, the fixed rod 21 is a square tube, and the inner ring of the fixed bevel gear 22 matches the circumferential surface shape of the fixed rod 21.

[0021] The armrest assembly 1 includes an armrest frame 11, a ratchet box 12, a cup holder 13, and an armrest pivot 14. The ratchet box 12 is located at the end where the armrest frame 11 connects to the backrest frame 4. The ratchet box 12 functions to lock the angle of the armrest frame 11; this is prior art and will not be elaborated further, but can be found in CN210478469U. The armrest frame 11 is rotatably connected to the backrest frame 4 via the armrest pivot 14, and the armrest frame 11 is fixedly connected to the armrest pivot 14. The armrest frame 11 rotates around the armrest pivot 14 as its axis, and the armrest pivot 14 also passes through the ratchet box 12. The end of the armrest pivot 14 closest to the backrest frame 4 passes through the backrest frame 4, and the armrest pivot 14 rotates at its upper limit within the backrest frame 4. A rotating gear 15 is provided at one end of the armrest pivot 14 near the backrest frame 4. The rotating gear 15 is fixedly sleeved on the circumferential surface of the armrest pivot 14, and the rotating gear 15 and the armrest pivot 14 rotate coaxially. The cup holder 13 is provided at the end of the armrest frame 11 away from the backrest frame 4.

[0022] The retaining assembly includes a movable bevel gear 31, a movable worm gear 32, and a transmission flexible shaft 33. The backrest frame 4 has a connecting frame 41 located at its bottom. The movable bevel gear 31 is connected to the connecting frame 41 via a fixing member 34, which is fixedly connected to the connecting frame 41. The movable bevel gear 31 rotates at its upper limit on the fixing member 34 and engages with the fixed bevel gear 22 for transmission. The movable worm gear 32 is connected to the backrest frame 4 via a fixed bracket 35, which is fixedly connected to the backrest frame 4. The movable worm gear 32 rotates at its upper limit on the fixed bracket 35 and engages with the rotating gear 15 for transmission. One end of the transmission flexible shaft 33 is fixedly connected to the axis of the movable bevel gear 31, and the other end is fixedly connected to the axis of the movable worm gear 32. The movable bevel gear 31 achieves transmission rotation through the transmission flexible shaft 33 and the movable worm gear 32.

[0023] In order to improve the smoothness of rotation between the armrest assembly 1 and the backrest frame 4, in this embodiment, preferably, a ball bearing shaft 42 is provided between the armrest assembly 1 and the backrest frame 4, the ball bearing shaft 42 is disposed on the backrest frame 4, and the armrest shaft 14 passes through the ball bearing shaft 42.

[0024] The working principle and usage process of this utility model are as follows: The angle adjustment drive motor 23 drives the backrest frame 4 to rotate, the fixed rod 21 rotates relative to the backrest frame 4, the fixed bevel gear 22 rotates relative to the movable bevel gear 31, the movable bevel gear 31 rotates, and synchronously drives the transmission flexible shaft 33 and the movable worm gear 32 to rotate, thereby driving the rotating gear 15 and the armrest shaft 14 to rotate, and finally making the backrest frame 4 and the armrest assembly 1 rotate synchronously, maintaining the relative angle between the armrest assembly 1 and the seat cushion frame 5.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A seat armrest retaining mechanism, characterized in that, The system includes an armrest assembly (1), an angle adjustment component (2), a retaining component, a backrest frame (4), and a seat cushion frame (5). The angle adjustment component (2) includes a fixing rod (21), a fixing bevel gear (22), and an angle adjustment drive motor (23). The angle adjustment drive motor (23) drives the fixing rod (21) to rotate relative to the backrest frame (4). The fixing rod (21) is fixedly connected to the seat cushion frame (5). The armrest assembly (1) includes an armrest frame (11) and an armrest pivot (14). The armrest frame (11) is connected to the backrest frame via the armrest pivot (14). (4) Rotary connection: The armrest pivot (14) is fixedly provided with a rotating gear (15). The retaining assembly includes a movable bevel gear (31), a movable worm (32), and a transmission flexible shaft (33). The movable bevel gear (31) and the movable worm (32) rotate at the upper limit on the backrest frame (4). The movable bevel gear (31) and the fixed bevel gear (22) mesh and drive each other. The movable worm (32) meshes and drives the rotating gear (15). One end of the transmission flexible shaft (33) is fixedly connected to the axis of the movable bevel gear (31), and the other end is fixedly connected to the axis of the movable worm (32).

2. A seat armrest retention mechanism according to claim 1, wherein The fixed end of the angle adjustment drive motor (23) is fixedly connected to the backrest frame (4), and the output end is fixedly connected to the fixed rod (21).

3. A seat armrest retention mechanism according to claim 1, wherein The backrest frame (4) is provided with a connecting frame (41), which is located at the bottom of the backrest frame (4). The movable bevel gear (31) is connected to the connecting frame (41) through a fixing member (34), and the movable bevel gear (31) rotates at the upper limit of the fixing member (34).

4. The seat armrest holding mechanism according to claim 1, characterized in that, A ball bearing shaft (42) is provided between the armrest assembly (1) and the backrest frame (4), and the armrest shaft (14) passes through the ball bearing shaft (42).

5. A seat armrest retention mechanism according to claim 1, wherein, The fixing rod (21) is a square tube, and the inner ring of the fixing bevel gear (22) matches the circumferential surface shape of the fixing rod (21).

6. A seat armrest holding mechanism according to claim 1, characterized in that, The movable worm gear (32) is connected to the backrest frame (4) via a fixed bracket (35). The fixed bracket (35) is fixedly connected to the backrest frame (4), and the movable worm gear (32) rotates at the upper limit of the fixed bracket (35).

7. A seat armrest retention mechanism according to claim 1, wherein The armrest assembly (1) includes a cup holder (13) which is located at the end of the armrest frame (11) away from the backrest frame (4).

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