Automobile seat adjusting mechanism

Abstract

The utility model discloses an automobile seat adjusting mechanism, and particularly relates to the technical field of automobile seats, the automobile seat adjusting mechanism comprises a seat and a fixed seat, the top of the fixed seat is rotatably connected with a rotating seat back, a rotating shaft of the rotating seat back is provided with a coaxial through hole, and the inner wall of the through hole of the rotating seat back is coaxially and fixedly connected with a plurality of inner gear rings; a plurality of inner gear rings are arranged at equal intervals, a fixed ring is coaxially and fixedly connected in each round hole in the two ends of the rotary chair back, the two fixed rings are jointly connected with a coaxial square column in a sliding mode, the square column is coaxially and fixedly sleeved with a plurality of outer gear rings matched with the inner gear rings, and the round holes in the two ends of the fixed seat are plugged with a hexagonal threaded cover and a through hole threaded cover respectively. The hexagonal threaded cover elastically abuts against the circular plate end of the square column, the square head end of the square column is fixedly connected with a driven column, the through hole threaded cover is rotationally connected with a driver for driving the driven column to move, and when the automobile seat adjusting mechanism is impacted by external force, the fixing mechanism is not prone to failure.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle seats, and particularly relates to a vehicle seat adjusting mechanism. Background Technique

[0002] The tilt adjustment of a vehicle seat mainly refers to the angle adjustment of the seat back relative to the seat cushion, aiming to help drivers and passengers find a comfortable and safe sitting posture.

[0003] Existing vehicle seats achieve the rotation adjustment and fixation of the seat back through an angle adjuster. However, the existing adjusters are usually arranged on both sides or one side of the seat, and the adjuster is relatively thin, with a small contact surface of the fixing mechanism and low fixing strength. In the event of a vehicle collision, the fixing mechanism of the angle adjuster may fail and harm passengers. Therefore, a new type of vehicle seat adjusting mechanism is needed. Summary of the Utility Model

[0004] To solve the above problems, the utility model discloses a vehicle seat adjusting mechanism.

[0005] To achieve the above object, the technical solution of the utility model is as follows:

[0006] A vehicle seat adjusting mechanism includes a seat and a fixed seat fixedly connected to one end of the seat. A rotating seat back is rotatably connected to the top of the fixed seat. A through hole coaxial with the axis is provided on the rotating shaft of the rotating seat back, and a plurality of internal gear rings are coaxially fixedly connected to the inner wall of the through hole of the rotating seat back. The plurality of internal gear rings are equidistant from each other. A fixing ring is coaxially fixedly connected to each of the circular holes at both ends of the rotating seat back, and a coaxial square column is slidably connected to the two fixing rings. A plurality of external gear rings adapted to the internal gear rings are coaxially fixedly sleeved on the square column, and the distance between the plurality of external gear rings is equal to the distance between the internal gear rings. The circular holes at both ends of the fixed seat are respectively plugged with a hexagonal threaded cap and a through hole threaded cap, and the hexagonal threaded cap elastically abuts against the circular plate end of the square column. A driven column is fixedly connected to the square head end of the square column, and a driver for driving the driven column to move is rotatably connected to the through hole threaded cap.

[0007] As a preferred technical solution of the utility model, the driven column is in sliding contact with the fixed seat. A semi-circular groove coaxial with itself is provided in the driven column, and the depth of the semi-circular groove changes gradually. The driver is coaxially rotatably connected to the through hole threaded cap, and the driving rod of the driver is inserted into the semi-circular groove of the driven column.

[0008] As a preferred technical solution of the utility model, a wrench perpendicular to its own rotation axis extends from one end of the driver away from the driven column.

[0009] As a preferred technical solution of the utility model, the hexagonal threaded cover and the through-hole threaded cover are both threadedly connected to the fixing seat.

[0010] As a preferred technical solution of the utility model, a hexagonal ring groove is provided on a side of the through hole threaded cover away from the driven column.

[0011] As a preferred technical solution of the utility model, the number of the inner gear rings and the outer gear rings is the same, and the linear sliding range of the square column is equal to the spacing between the inner gear rings.

[0012] As a preferred technical solution of the present utility model, the number of edges of the square column is greater than or equal to three.

[0013] As a preferred technical solution of the utility model, the hexagonal threaded cover is connected with a spring, and the other end of the spring is pressed against the circular plate end of the square column.

[0014] The beneficial effects of the utility model are:

[0015] 1. When adjusting the angle of the car seat, pull the wrench of the driver upward to separate the inner gear ring and the outer gear ring, and stagger the outer gear ring with the inner gear ring. Then freely rotate the swivel seat back to adjust to a suitable angle, and then release the wrench of the driver. Under the elastic force of the spring, the driven column, the outer gear ring and the square column return to their original positions. The inner gear ring and the outer gear ring are plugged together one by one, so that the swivel seat back is fixed and cannot rotate. Thanks to the use of multiple inner gear rings and outer gear rings plugged together to fix the angle of the car seat, the contact surface of the fixing mechanism is larger and the strength is relatively high. The fixing mechanism is not easy to fail when subjected to external force impact, which improves the safety of the car seat.

[0016] 2. The car seat adjustment mechanism is driven by pulling the wrench upward, which is easy to operate and has a simple and reliable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of another angle of the embodiment of the utility model;

[0019] Figure 3 It is a cross-sectional view of a fixed seat, a rotating chair back, a hexagonal threaded cover, a spring, a square column, a fixed ring, an inner gear ring, an outer gear ring, a driven column, a through-hole threaded cover and a driver according to an embodiment of the utility model;

[0020] Figure 4 An exploded view of a hexagonal threaded cover, a spring, a square column, a fixing ring, an inner gear ring, an outer gear ring, a driven column, a through-hole threaded cover and a driver according to an embodiment of the utility model;

[0021] Figure 5 Exploded view of the embodiment of the present utility model, the driven column, the through-hole thread cover and the driver;

[0022] Figure 6 Schematic structural diagram of the driver in the embodiment of the present utility model;

[0023] Figure 7 Exploded view of the internal gear ring and the external gear ring in the embodiment of the present utility model.

[0024] List of drawing reference numerals:

[0025] 1. Seat; 2. Fixed seat; 3. Rotating backrest; 4. Hexagonal thread cover; 5. Spring; 6. Square column; 7. Fixed ring; 8. Internal gear ring; 9. External gear ring; 10. Driven column; 11. Through-hole thread cover; 12. Driver; 13. Cushion; 14. Backrest cushion; 15. Headrest. Detailed implementation manners

[0026] The present utility model will be further clarified below in conjunction with the drawings and the detailed implementation manners. It should be understood that the following detailed implementation manners are only used to illustrate the present utility model and not to limit the scope of the present utility model.

[0027] Please refer to Figure 1-7 , an automobile seat adjusting mechanism, including a seat 1 and a fixed seat 2 fixedly connected to one end of the seat 1. The top of the fixed seat 2 is rotatably connected with a rotating backrest 3. A cushion 13 is installed on the top of the seat 1. A backrest cushion 14 and a headrest 15 are installed on the side of the rotating backrest 3 facing the passenger, wherein the backrest cushion 14 bulges at the waist of the passenger, and the headrest 15 is installed on the top of the rotating backrest 3.

[0028] The rotating shaft of the rotating backrest 3 is provided with a through-hole coaxially, and a plurality of internal gear rings 8 are coaxially fixedly connected to the inner wall of the through-hole of the rotating backrest 3. The plurality of internal gear rings 8 are equidistant from each other. A fixed ring 7 is coaxially fixedly connected to each of the circular holes at both ends of the rotating backrest 3, and a coaxial square column 6 is slidably connected by the two fixed rings 7. The fixed ring 7 cannot move or rotate. A plurality of external gear rings 9 adapted to the internal gear rings 8 are coaxially fixedly sleeved on the square column 6, and the distance between the plurality of external gear rings 9 is equal to the distance between the internal gear rings 8. The number of the internal gear rings 8 and the external gear rings 9 is the same, and the linear sliding range of the square column 6 is equal to the distance between the internal gear rings 8. Rounding is provided at both ends of each tooth circle of the internal gear ring 8 and the external gear ring 9 to facilitate the insertion of the internal gear ring 8 and the external gear ring 9 together. When the internal gear ring 8 and the external gear ring 9 are inserted together, the external gear ring 9 cannot rotate. The two ends of the fixed seat 2 are respectively blocked by a hexagonal thread cover 4 and a through-hole thread cover 11, and the hexagonal thread cover 4 elastically abuts against the circular plate end of the square column 6. The square head end of the square column 6 is fixedly connected with a driven column 10, and a driver 12 for driving the movement of the driven column 10 is rotatably connected to the through-hole thread cover 11.

[0029] The driven column 10 is in sliding contact with the fixed seat 2. The driven column 10 is provided with a semi-annular groove coaxial with itself, and the depth of the semi-annular groove is gradually changed. The driver 12 is coaxially connected to the through-hole threaded cover 11 for rotation, and the driving rod of the driver 12 is inserted into the semi-annular groove of the driven column 10. A wrench perpendicular to its own rotation axis extends from one end of the driver 12 away from the driven column 10, and the driver 12 cannot move linearly along its own rotation axis relative to the through-hole threaded cover 11. The end of the driving rod inserted into the semi-annular groove is a round head. When the hexagonal threaded cover 4 elastically presses against the circular plate end of the square column 6, the inner gear ring 8 and the outer gear ring 9 are plugged together one by one, and the driving rod of the driver 12 is inserted into the deepest part of the semi-annular groove, and the angle of the rotating chair back 3 remains fixed. By pulling the wrench of the driver 12 upward, the driving rod of the driver 12 rotates, and the insertion depth of the driving rod in the semi-annular groove gradually becomes shallower, thereby pushing the driven column 10, the outer gear ring 9 and the square column 6 to move linearly together, so that the inner gear ring 8 and the outer gear ring 9 are separated, and the outer gear ring 9 is staggered with the inner gear ring 8, so that the chair back 3 can be freely rotated to adjust the angle.

[0030] The hexagonal threaded cover 4 and the through-hole threaded cover 11 are both threadedly connected to the fixing seat 2. A hexagonal ring groove is provided on the side of the through-hole threaded cover 11 away from the driven column 10. The hexagonal threaded cover 4 is provided with a hexagonal groove and is tightened on the fixing seat 2 using a hexagonal wrench. The through-hole threaded cover 11 is provided with a hexagonal ring groove and is tightened on the fixing seat 2 using a special wrench.

[0031] The square column 6 is a multi-prism, and the number of edges of the square column 6 is greater than or equal to 3. The square column 6 can only slide in a straight line, and the fixing ring 7 is provided with a through hole that fits the outer wall, so that the square column 6 cannot rotate around its own axis.

[0032] There are many ways to elastically press the hexagonal threaded cover 4 against the round plate end of the square column 6, and a common spring or spring sheet can be used. Specifically, the hexagonal threaded cover 4 is connected to a spring 5, and the other end of the spring 5 presses against the round plate end of the square column 6. The hexagonal threaded cover 4 elastically presses against the round plate end of the square column 6, so that the inner gear ring 8 and the outer gear ring 9 are plugged together one by one, and the swivel chair back 3 cannot rotate.

[0033] Working principle:

[0034] When a passenger adjusts the angle of the vehicle seat, the wrench of the driver 12 is pulled upward, the driving rod of the driver 12 rotates, and the insertion depth of the driving rod in the semi-circular groove gradually becomes shallower, thereby pushing the driven column 10, the external gear ring 9 and the square column 6 to move linearly together, so that the internal gear ring 8 and the external gear ring 9 are separated, and the external gear ring 9 is staggered with the internal gear ring 8. Then, the rotating backrest 3 is freely rotated to an appropriate angle. Then, the wrench of the driver 12 is released. Under the elastic force of the spring 5, the driven column 10, the external gear ring 9 and the square column 6 return to their original positions, and the internal gear ring 8 and the external gear ring 9 are inserted into each other one by one, so that the rotating backrest 3 is fixed and cannot rotate. At the same time, the driver 12 rotates and resets, and the driving rod of the driver 12 is inserted into the deepest part of the semi-circular groove.

[0035] It should be noted that the above content only illustrates the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements all fall within the protection scope of the claims of the present invention.

Claims

1. An automobile seat adjusting mechanism, comprising a seat (1) and a fixed seat (2) fixedly connected to one end of the seat (1), characterized in that, A rotating chair back (3) is rotatably connected to the top of the fixed seat (2). A through hole coaxial with the axis is provided on the rotating shaft of the rotating chair back (3), and a plurality of internal gear rings (8) are coaxially and fixedly connected to the inner wall of the through hole of the rotating chair back (3). The plurality of internal gear rings (8) are equidistantly spaced. A fixing ring (7) is coaxially and fixedly connected to each of the circular holes at both ends of the rotating chair back (3), and a coaxial square column (6) is slidably connected by the two fixing rings (7). A plurality of external gear rings (9) adapted to the internal gear rings (8) are coaxially and fixedly sleeved on the square column (6), and the spacing between the plurality of external gear rings (9) is equal to the spacing between the internal gear rings (8). The circular holes at both ends of the fixed seat (2) are respectively plugged with a hexagonal threaded cap (4) and a through hole threaded cap (11), and the hexagonal threaded cap (4) elastically abuts against the circular plate end of the square column (6). A driven column (10) is fixedly connected to the square head end of the square column (6), and a driver (12) for driving the driven column (10) to move is rotatably connected to the through hole threaded cap (11).

2. The automotive seat adjusting mechanism according to claim 1, wherein, The driven column (10) is in sliding contact with the fixed seat (2). A semi-circular groove coaxial with itself is provided in the driven column (10), and the depth of the semi-circular groove changes gradually. The driver (12) is rotatably connected to the through hole threaded cap (11) coaxially, and the driving rod of the driver (12) is inserted into the semi-circular groove of the driven column (10).

3. The automotive seat adjustment mechanism according to claim 2, characterized in that, One end of the driver (12) away from the driven column (10) extends with a wrench perpendicular to its own rotation axis.

4. The adjustment mechanism of an automotive seat according to claim 1, characterized in that, Both the hexagonal threaded cap (4) and the through hole threaded cap (11) are threadedly connected to the fixed seat (2).

5. An automobile seat adjusting mechanism according to claim 4, characterized in that, A hexagonal ring groove is provided on one side of the through hole threaded cap (11) away from the driven column (10).

6. The adjustment mechanism of an automotive seat according to claim 1, characterized in that, The number of the internal gear rings (8) is the same as that of the external gear rings (9), and the linear sliding range of the square column (6) is equal to the spacing between the internal gear rings (8).

7. The automotive seat adjusting mechanism according to claim 6, characterized in that, The number of edges of the square column (6) is greater than or equal to three.

8. The automotive seat adjusting mechanism according to claim 1, characterized in that, The hexagonal threaded cap (4) is connected with a spring (5), and the other end of the spring (5) abuts against the circular plate end of the square column (6).

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