High-stability automobile seat adjusting chassis

Abstract

The utility model belongs to the technical field of automobiles, and particularly relates to a high-stability automobile seat adjusting chassis which comprises a fixed base fixedly connected with an automobile body, and a mounting bracket, a driving assembly, a seat mounting plate and a limiting assembly which are arranged on the fixed base, the rear end of the seat mounting plate is hinged to the fixed base through a hinge shaft, the front end of the seat mounting plate has the degree of freedom of rotating along the hinge shaft through a driving assembly, the driving assembly comprises a driving motor, a rotating sleeve and a lead screw, the rotating sleeve and the lead screw are matched with each other, the driving motor is hinged to the mounting support, and the lead screw is in driving connection with the driving motor. The rotating sleeve is installed at the front end of the seat installation plate in a hinged mode, the adjusting precision is high, good stability is achieved, the angle of the seat is stable and free of pause feeling during adjustment, the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and in particular relates to a high-stability automobile seat adjustment chassis. Background Art

[0002] With the development and progress of science and technology, cars have become the main means of transportation for travel, so people spend more and more time in cars, and the requirements for car riding comfort are getting higher and higher. Traditional car seats can be moved forward and backward as a whole and the seat back angle can be adjusted to increase the riding space or realize the reclining angle of the passengers to increase the comfort of the passengers when riding in the car, but the angle of the seat cushion cannot be adjusted, and the riding comfort of the passengers when resting and relaxing in the car still needs to be improved. Therefore, a mechanism that can adjust the angle of the entire seat is needed, but if the structure of the mechanism is complex, it is easy to cause an increase in the manufacturing cost of the vehicle, which will greatly increase the selling price of the vehicle and affect the sales volume of the vehicle. Therefore, a mechanism that can adjust the angle of the car seat with a simple structure and low manufacturing cost is needed, and the stability of the mechanism during the adjustment process directly affects the riding experience of the passengers. Utility Model Content

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a high-stability automobile seat adjustment chassis with high adjustment accuracy and good stability. The seat angle can be adjusted smoothly without any sense of frustration. It has a simple structure and low manufacturing cost, and is suitable for vigorous promotion and application.

[0004] The specific technical solution adopted by the utility model is:

[0005] A high-stability automobile seat adjustment chassis includes a fixed base fixed to a vehicle body and a seat mounting plate connected to the fixed base. The key point is that it also includes a mounting bracket, a drive assembly and a limit assembly arranged on the fixed base. The rear end of the seat mounting plate is hinged to the fixed base by means of a hinge shaft, and the front end has the freedom to rotate along the hinge shaft by means of the drive assembly. The drive assembly includes a drive motor, and a rotating sleeve and a screw that match each other. The drive motor is hinged to the mounting bracket, the screw is drivingly connected to the drive motor, and the rotating sleeve is hingedly mounted on the front end of the seat mounting plate.

[0006] Driving components are respectively arranged on both sides of the seat mounting plate.

[0007] The limit assembly includes a front protrusion and a rear protrusion respectively arranged on the mounting bracket, a first connecting rod and a second connecting rod hinged in series between the seat mounting plate and the mounting bracket, and a first limit rod and a second limit rod respectively forming a limit cooperation with the front protrusion and the rear protrusion, the first limit rod is connected to the seat mounting plate, and the second limit rod is arranged on a suspended hinged chain formed by hinged connection of the first connecting rod and the second connecting rod.

[0008] The left and right sides of the seat mounting plate are respectively provided with limit position components.

[0009] The mounting brackets are respectively located on the left and right sides of the seat mounting plate, and the front ends and rear ends of the mounting brackets are respectively fixedly connected by means of connecting plates.

[0010] The driving motor and the lead screw are connected by means of a reducer, the reducer is hinged to the mounting bracket, and the axial direction of the driving motor is arranged parallel to the left and right directions of the mounting bracket.

[0011] The beneficial effects of the utility model are:

[0012] The utility model adopts a lead screw and a rotating sleeve as the drive for adjusting the angle of the seat mounting plate, and the lifting angle and the falling angle of the seat mounting plate are limited by a limiting component to prevent the seat from rotating excessively and affecting the riding experience of the passengers; the driving motor of the lead screw is hinged to the mounting bracket, and the rotating sleeve is hinged to the seat mounting plate, and a linkage mechanism is formed among the driving motor, the mounting bracket, the rotating sleeve and the seat mounting plate to convert the linear motion into the curved motion, and drive the seat mounting plate hinged to the rotating sleeve to rotate smoothly along the hinge axis, so as to realize the change of the angle between the seat mounted on the seat mounting plate and the chassis, and realize the adjustment of multiple modes of the seat; the driving component has a simple structure and low cost, and the lead screw and the rotating sleeve are in surface contact, and the structure is stable, and the rotational motion is converted into linear motion, so that the angle adjustment is more precise, and the seat mounting plate can be smoothly rotated along the hinge axis during the driving process, which effectively reduces the sense of frustration during the seat angle adjustment process, improves the riding experience, and is suitable for vigorous promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of Example 1;

[0014] Figure 2 It is a structural schematic diagram of the seat mounting plate in a lifted state;

[0015] Figure 3 is a top view of Example 1;

[0016] Figure 4 for Figure 3 Sectional view along AA direction;

[0017] Figure 5 It is a structural schematic diagram of Example 2;

[0018] Figure 6 It is a structural schematic diagram of Example 3;

[0019] In the accompanying drawings, 1. fixed base, 2. mounting bracket, 3. driving assembly, 31. driving motor, 32. rotating sleeve, 33. screw, 34. reducer, 4. seat mounting plate, 5. limiting assembly, 51. front protrusion, 52. rear protrusion, 53. first connecting rod, 54. second connecting rod, 55. first limiting rod, 56. second limiting rod, 6. articulated shaft, 7. connecting plate. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0021] Embodiment 1, as Figure 1-4 As shown, a high-stability automobile seat adjustment chassis comprises a fixed base 1 fixedly connected to the vehicle body and a seat mounting plate 4 connected to the fixed base 1, the seat is mounted on the seat mounting plate 4, and the key is that it also comprises a mounting bracket 2, a driving assembly 3 and a limiting assembly 5 arranged on the fixed base 1, the rear end of the seat mounting plate 4 is hinged to the fixed base 1 by means of a hinge shaft 6, and the front end has the freedom to rotate along the hinge shaft 6 by means of the driving assembly 3, the driving assembly 3 comprises a driving motor 31, and a rotating sleeve 32 and a lead screw 33 that match each other, the driving motor 31 is hinged to the mounting bracket 2, the lead screw 33 is drivingly connected to the driving motor 31, and the rotating sleeve 32 is hingedly mounted on the front end of the seat mounting plate 4; the driving motor 31 drives the lead screw 33 to rotate, and the rotating sleeve 32 makes a linear motion along the axis of the lead screw 33, because the driving motor 31 is hinged to the mounting bracket 2, and the rotating sleeve 32 is hinged to the seat mounting plate 4, the driving motor 31, the mounting bracket 2, the rotating sleeve 32 and the seat mounting plate 4 are hinged, and the driving motor 31, the mounting bracket 2, the rotating sleeve 32 and the seat mounting plate 4 are hinged. A linkage mechanism is formed between the rotating sleeve 32 and the seat mounting plate 4, which converts linear motion into curved motion, so that the seat mounting plate 4 rotates smoothly along the hinge shaft 6, realizes the change of the angle between the seat mounted on the seat mounting plate 4 and the chassis, and realizes the adjustment of various modes such as the normal mode of the seat, the rest mode of swinging back 16°-28°, and the zero gravity mode of swinging back 36°-60°. The driving component 3 has a simple structure and low manufacturing cost, and the lead screw 33 and the rotating sleeve 32 are in surface contact, the structure is stable, and the rotational motion is converted into linear motion, so that the angle adjustment is more precise, which is convenient for passengers to find the seat angle that suits them. During the driving process of the lead screw 33, the seat mounting plate 4 rotates and swings smoothly along the hinge shaft 6, effectively reducing the sense of frustration during the seat angle adjustment process and improving the riding experience. The limit component 5 limits the lifting angle and the falling angle of the seat mounting plate 4, that is, the seat, to prevent the seat from rotating excessively and affecting the riding experience of the passengers.

[0022] The lead screw 33 and the rotating sleeve 32 have a self-locking effect, which can prevent the seat from changing its angle due to the bumps of the car or the shaking of the passengers, thereby further improving the stability of the seat.

[0023] In this embodiment, the driving assembly 3 is only arranged on one side of the seat mounting plate 4, thereby saving manufacturing costs.

[0024] The limiting assembly 5 includes a front protrusion 51 and a rear protrusion 52 respectively arranged on the mounting bracket 2, a first connecting rod 53 and a second connecting rod 54 which are hinged in series between the seat mounting plate 4 and the mounting bracket 2, and a first limiting rod 55 and a second limiting rod 56 which respectively form limiting cooperation with the front protrusion 51 and the rear protrusion 52. The first limiting rod 55 is connected to the seat mounting plate 4, and the second limiting rod 56 is arranged on a suspended hinge chain formed by hingedly connecting the first connecting rod 53 and the second connecting rod 54. Specifically, the second limiting rod 56 is connected to the first connecting rod 53 and the second connecting rod 54. 4 is connected at the hinge point, which is easy to process, install and reasonably arrange; the front protrusion 51 is matched with the first limiting rod 55, and the rear protrusion 52 is matched with the second limiting rod 56 to form a limit to the maximum swingable angle of the seat mounting plate 4 around the hinge shaft 6. The front protrusion 51 and the rear protrusion 52 are set on the mounting bracket 2, and the second limiting rod 56 is set on the second connecting rod 54. During the swinging process of the seat mounting plate 4, the first connecting rod 53 and the second connecting rod 54 are matched to open and close, so as to realize the forward and backward movement of the second limiting rod 56, so that the layout of the limiting assembly 5 is reasonable and the space under the seat is reduced. During operation, the seat mounting plate 4 is lifted and rotated backward, and the second limiting rod 56 contacts the rear protrusion 52, and the rear protrusion 52 limits the maximum angle of the lifting of the seat mounting plate 4 to prevent the seat mounting plate 4 from being lifted excessively; the seat mounting plate 4 falls back, and the first limiting rod 55 contacts the front protrusion 51, and the front protrusion 51 limits the falling position of the seat mounting plate 4. The limiting component 5 provides support for the seat during the limiting process, further improving the stability of the seat.

[0025] Among them, the left and right sides of the seat mounting plate 4 are respectively provided with limiting components 5, the left and right sides of the seat mounting plate 4 are respectively connected with the first connecting rod 53, and the left and right sides of the mounting bracket 2 are respectively connected with the second connecting rod 54, wherein the two ends of the first limiting rod 54 are respectively connected to the left and right side walls of the seat mounting plate 4, and the two ends of the second limiting rod 53 are respectively connected to the second connecting rod 32 on the left and right sides of the seat mounting plate 4, so as to improve the strength of the first limiting rod 54 and the second limiting rod 53, and at the same time ensure the synchronous movement of the second connecting rod 54; a pair of matching front protrusions 51 and rear protrusions 52 are respectively provided on the left and right sides of the mounting bracket 2; when the seat mounting plate 4 is lifted to the maximum angle, the two sides are respectively limited by the rear protrusions 52; when the seat mounting plate 4 falls back to the initial position, the two sides are respectively limited by the front protrusions 51, which effectively improves the stability of the seat.

[0026] Furthermore, the drive motor 31 and the lead screw 33 are connected by means of a reducer 34. The reducer 34 is hinged to the mounting bracket 2. The axial direction of the drive motor 31 is arranged parallel to the left and right directions of the mounting bracket 2. This arrangement rationally utilizes the space under the seat mounting plate 4, and can reduce the spatial height between the seat mounting plate 4 and the fixed base 1, which is convenient for the rational layout of the vehicle body and other components.

[0027] Embodiment 2, as Figure 5 As shown, it is basically the same as Example 1, and the only difference is that the driving components 3 are respectively provided on both sides of the seat mounting plate 4, that is, the left and right sides of the seat mounting plate 4 are respectively provided with driving components 3, when adjusting the seat angle, the driving motors 31 on the left and right sides simultaneously drive their respective matching connecting screws 33 to rotate, and the rotating sleeves 32 on the left and right sides simultaneously drive the seat mounting plate 4 to rotate along the hinge shaft 6, and the driving process is more stable and reliable.

[0028] Embodiment 3, as Figure 6 As shown, it is basically the same as Example 1, and the only difference is that the mounting bracket 2 is respectively located on the left and right sides of the seat mounting plate 4 and the front end and the rear end of the mounting bracket 2 are respectively fixedly connected by means of a connecting plate 7, and the mounting bracket 2 forms a frame. The mounting bracket 2 has good integrity and improves the installation strength.

Claims

1. A high-stability automobile seat adjustment chassis, comprising a fixed base (1) fixedly connected to a vehicle body and a seat mounting plate (4) connected to the fixed base (1), characterized in that: The invention also comprises a mounting bracket (2), a driving assembly (3) and a limiting assembly (5) which are arranged on the fixed base (1); the rear end of the seat mounting plate (4) is hinged to the fixed base (1) by means of a hinge shaft (6); the front end has the freedom to rotate along the hinge shaft (6) by means of the driving assembly (3); the driving assembly (3) comprises a driving motor (31), and a rotating sleeve (32) and a lead screw (33) which are matched with each other; the driving motor (31) is hinged to the mounting bracket (2); the lead screw (33) is drivingly connected to the driving motor (31); and the rotating sleeve (32) is hingedly mounted on the front end of the seat mounting plate (4).

2. The high stability automobile seat adjustment chassis according to claim 1, characterized in that: Driving components (3) are respectively arranged on both sides of the seat mounting plate (4).

3. The high stability automobile seat adjustment chassis according to claim 1, characterized in that: The limiting assembly (5) comprises a front protrusion (51) and a rear protrusion (52) respectively arranged on the mounting bracket (2), a first connecting rod (53) and a second connecting rod (54) which are hinged in series between the seat mounting plate (4) and the mounting bracket (2), and a first limiting rod (55) and a second limiting rod (56) which respectively form limiting cooperation with the front protrusion (51) and the rear protrusion (52), wherein the first limiting rod (55) is connected to the seat mounting plate (4), and the second limiting rod (56) is arranged on a suspended hinge chain formed by hinged connection of the first connecting rod (53) and the second connecting rod (54).

4. The high stability automobile seat adjustment chassis according to claim 1, characterized in that: The left and right sides of the seat mounting plate (4) are respectively provided with limit position components (5).

5. The high stability automobile seat adjustment chassis according to claim 1, characterized in that: The mounting brackets (2) are respectively located on the left and right sides of the seat mounting plate (4), and the front ends and rear ends of the mounting brackets (2) are respectively fixedly connected by means of connecting plates (7).

6. The high stability automobile seat adjustment chassis according to claim 1, characterized in that: The drive motor (31) and the lead screw (33) are connected by transmission via a reducer (34), the reducer (34) is hinged to the mounting bracket (2), and the axial direction of the drive motor (31) is arranged parallel to the left and right directions of the mounting bracket (2).

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