Seat height adjusting push rod motor mounting structure

Abstract

The utility model relates to the technical field of automobile seats, in particular to a seat height adjusting push rod motor installation structure which comprises a base, a cushion frame, an installation frame, a moving mechanism, a step screw and two bushings, the moving mechanism can drive the cushion frame on the base to ascend or descend when working, and when the moving mechanism rotates during working, the step screw drives the two bushings to rotate. The step screw, the two bushings and the mounting frame are tightly matched, axial and radial gaps are effectively eliminated, impact abnormal sound and abnormal sound caused by the gaps when the motor is started or rotates reversely are reduced, the mounting stability of the moving mechanism is improved through the tightly-matched mounting structure, the accuracy and reliability of the height adjusting function are ensured, and the service life of the moving mechanism is prolonged. Therefore, the riding comfort is improved, and the safety and reliability of the seat are enhanced. And under the conditions of emergency braking or sharp turning and the like, the seat can be better kept stable, and the problem that the motor rotates at a small angle at the mounting end to generate impact abnormal sound due to the torque at the moment of starting the motor is solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a seat height adjustment push rod motor mounting structure. Background Technology

[0002] Height adjustment is a common feature in car seat configurations and functions. Typically, height adjustment relies on a four-bar linkage, driven by a motor through gears or a lead screw. In the case of a motor-driven lead screw adjustment, the screw at the motor output and the moving nut engage in a rotational motion.

[0003] The motor generates a large torque at the moment of starting. Since the motor mounting end is a bolted hinge, the torque at the moment of starting will cause the motor to rotate at a small angle at the mounting end, thus producing an impact noise. Utility Model Content

[0004] The purpose of this utility model is to provide a seat high-adjustment push rod motor mounting structure, which aims to solve the problem that the torque at the moment of motor start-up will cause the motor to rotate at a small angle at the mounting end, resulting in impact noise.

[0005] To achieve the above objectives, this utility model provides a seat height adjustment push rod motor mounting structure, including a base, a seat cushion frame, a mounting bracket, a moving mechanism, a step screw, and two bushings;

[0006] The seat cushion frame is mounted on the base, the mounting bracket is mounted on the seat cushion frame, the step screw passes through the mounting bracket and is located on the mounting bracket, the two bushings are respectively riveted to the mounting bracket, the moving mechanism is mounted between the two bushings and connected to the base.

[0007] The base includes two front mounting brackets, two rear mounting brackets, two front connecting rods, and two rear connecting rods. The two front connecting rods are rotatably connected to the two front mounting brackets and are respectively located on the two front mounting brackets. The two rear connecting rods are rotatably connected to the two rear mounting brackets and are respectively located on the two rear mounting brackets.

[0008] The seat frame includes a front horizontal tube, a rear horizontal tube, and two side plates. The front horizontal tube is fixedly connected to the two front connecting rods and welded to the mounting bracket, and is located between the two front connecting rods. The rear horizontal tube is fixedly connected to the two rear connecting rods and is located between the two rear connecting rods. The two side plates are respectively fixedly connected to the front horizontal tube and to the rear horizontal tube.

[0009] The moving mechanism comprises a motor, a screw rod, a moving nut and a connecting rod, the motor penetrates through the stepped screw, is installed between the two bushings, the screw rod is fixedly connected with the output end of the motor, the moving nut is threadedly connected with the screw rod and is located around the screw rod, and the connecting rod is fixedly connected with the moving nut and is connected with the rear connecting rod.

[0010] The screw rod is provided with a limiting block, and the limiting block is fixedly connected with the screw rod and is located on the side of the screw rod away from the motor.

[0011] The seat height adjustment push rod motor mounting structure of the utility model provides mounting conditions for the cushion frame, the cushion frame provides mounting conditions for the mounting frame, the mounting frame provides mounting conditions for the stepped screw, the stepped screw provides mounting conditions for the two bushings and the moving mechanism, and the moving mechanism can drive the cushion frame on the base to be raised or lowered when working; when the moving mechanism works and rotates, the stepped screw, the two bushings and the mounting frame are tightly matched, axial and radial clearances are effectively eliminated, impact noise and abnormal noise caused by clearances during motor starting or reversing are reduced, the tightly matched mounting structure improves the mounting stability of the moving mechanism, ensures the accuracy and reliability of the height adjustment function, thereby improving the riding comfort, and the safety and reliability of the seat are also enhanced. In the case of emergency braking or sharp turning, the seat can be better kept stable, the safety of passengers is protected, and the problem that the torque at the moment of motor starting can cause the motor to rotate at a small angle at the mounting end and produce impact noise is solved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.

[0013] Fig. 1 is a structural schematic view of the seat height adjustment push rod motor mounting structure of the utility model.

[0014] Fig. 2 is a structural schematic view of the mounting frame, the stepped screw, the bushing, the motor, the screw rod and the limiting block.

[0015] In the drawing: 1-mounting frame, 2-stepped screw, 3-bushing, 4-front mounting support, 5-rear mounting support, 6-front connecting rod, 7-rear connecting rod, 8-front cross pipe, 9-rear cross pipe, 10-side plate, 11-motor, 12-screw rod, 13-moving nut, 14-connecting rod, 15-limiting block. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0017] Please refer to Figs. 1-2 The utility model provides a seat high -tune push rod motor 11 mounting structure, including base, cushion frame, mounting frame 1, moving mechanism, step screw 2 and two bushings 3,

[0018] The cushion frame is installed on the base, the mounting frame 1 is installed on the cushion frame, the step screw 2 penetrates the mounting frame 1 and is located on the mounting frame 1, and the two bushings 3 are riveted on the mounting frame 1 respectively, the moving mechanism is installed between the two bushings 3 and is connected with the base.

[0019] In the embodiment, the base provides installation conditions for the cushion frame, the cushion frame provides installation conditions for the mounting frame 1, the mounting frame 1 provides installation conditions for the step screw 2, and the step screw 2 provides installation conditions for the two bushings 3 and the moving mechanism. The moving mechanism can drive the cushion frame on the base to rise or lower when working. When the moving mechanism works, the step screw 2, the two bushings 3 and the mounting frame 1 are tightly matched, effectively eliminating the axial and radial clearances, reducing the impact noise and noise caused by the clearances when the motor 11 starts or reverses, and the tightly matched mounting structure improves the installation stability of the moving mechanism, ensures the accuracy and reliability of the height adjustment function, thereby improving the riding comfort, and enhances the safety and reliability of the seat. In the case of emergency braking or sharp turning, the seat can better maintain stability and protect the safety of passengers, solving the problem that the torque at the moment of starting the motor 11 causes the motor 11 to rotate at a small angle at the installation end and produce impact noise.

[0020] Further, the base includes two front mounting brackets 4, two rear mounting brackets 5, two front connecting rods 6 and two rear connecting rods 7, the two front connecting rods 6 are respectively rotatably connected with the two front mounting brackets 4 and are respectively located on the two front mounting brackets 4, and the two rear connecting rods 7 are respectively rotatably connected with the two rear mounting brackets 5 and are respectively located on the two rear mounting brackets 5.

[0021] In the embodiment, the two front mounting brackets 4 and the two rear mounting brackets 5 provide mounting conditions for the two front connecting rods 6 and the two rear connecting rods 7, the two front mounting brackets 4 and the two rear mounting brackets 5 can fix the seat on the vehicle body, and the two front connecting rods 6 and the two rear connecting rods 7 can mount the front cross pipe 8 and the rear cross pipe 9.

[0022] Further, the seat cushion frame comprises the front cross pipe 8, the rear cross pipe 9 and the two side plates 10, the front cross pipe 8 is fixedly connected with the two front connecting rods 6 and is welded with the mounting frame 1 and located between the two front connecting rods 6, the rear cross pipe 9 is fixedly connected with the two rear connecting rods 7 and located between the two rear connecting rods 7, and the two side plates 10 are respectively fixedly connected with the front cross pipe 8 and the rear cross pipe 9.

[0023] In the embodiment, the front cross pipe 8 provides mounting conditions for the mounting frame 1, and the front cross pipe 8 and the rear cross pipe 9 provide mounting conditions for the two side plates 10.

[0024] Further, the moving mechanism comprises the motor 11, the lead screw 12, the moving nut 13 and the connecting rod 14, the motor 11 penetrates through the step screw 2 and is installed between the two bushings 3, the lead screw 12 is fixedly connected with the output end of the motor 11, the moving nut 13 is threadedly connected with the lead screw 12 and located around the lead screw 12, and the connecting rod 14 is fixedly connected with the moving nut 13 and connected with the rear connecting rod 7.

[0025] In the embodiment, the motor 11 can drive the lead screw 12 to rotate, the rotation of the lead screw 12 can drive the connecting rod 14 on the moving nut 13 to push the rear connecting rod 7 to rotate, thereby realizing height adjustment of the seat.

[0026] Further, the lead screw 12 has the limiting block 15, the limiting block 15 is fixedly connected with the lead screw 12 and located on the side of the lead screw 12 away from the motor 11.

[0027] In the embodiment, the limiting block 15 can prevent the moving nut 13 from moving out of the range of the lead screw 12.

[0028] Beneficial effects:

[0029] I. Eliminate installation gap:

[0030] The stepped screw is tightly fitted with the motor to eliminate the axial gap. The stepped part of the screw is tightly fitted with the mounting bracket through the bushing to eliminate the radial gap. This design forms a whole with the motor and the stepped screw, reducing the noise caused by the installation gap when the motor starts or reverses, thereby reducing the abnormal noise.

[0031] II. Improve installation stability: The stepped screw is used to tighten the motor axially, and the bushing is used to fit radially to ensure that the motor is more stable during startup and operation, reducing the impact noise caused by installation gap.

[0032] III. Enhance ride comfort:

[0033] By reducing the noise when the motor starts, the comfort of the ride is improved, especially during vehicle startup and driving, passengers can experience a more quiet and comfortable ride.

[0034] IV. Improve safety and reliability:

[0035] By reducing the impact noise when the motor starts, the invention not only improves the comfort of the ride, but also enhances the safety and reliability of the seat. In the case of emergency braking or sharp turns, the seat can better maintain stability and protect the safety of passengers.

[0036] The above disclosure is only one or more preferred embodiments of the present application, and cannot limit the scope of the present application. Those skilled in the art can understand that the implementation of all or part of the above-mentioned embodiments, and the equivalent changes made according to the claims of the present application, still belong to the scope covered by the present application.

Claims

1. A seat height adjustment push rod motor mounting structure, characterized in that, It comprises a base, a cushion frame, a mounting bracket, a moving mechanism, a step screw and two bushings; The cushion frame is mounted on the base, the mounting bracket is mounted on the cushion frame, the step screw penetrates through the mounting bracket and is located on the mounting bracket, two bushings are riveted on the mounting bracket respectively, and the moving mechanism is mounted between the two bushings and connected with the base.

2. The seat height adjustment push rod motor mounting structure of claim 1, characterized in that, The base comprises two front mounting supports, two rear mounting supports, two front connecting rods and two rear connecting rods, the two front connecting rods are rotatably connected with the two front mounting supports respectively and are located on the two front mounting supports respectively, and the two rear connecting rods are rotatably connected with the two rear mounting supports respectively and are located on the two rear mounting supports respectively.

3. The seat height adjustment push rod motor mounting structure of claim 2, characterized in that, The cushion frame comprises a front cross pipe, a rear cross pipe and two side plates, the front cross pipe is fixedly connected with the two front connecting rods, is welded with the mounting bracket and is located between the two front connecting rods, the rear cross pipe is fixedly connected with the two rear connecting rods and is located between the two rear connecting rods, and the two side plates are fixedly connected with the front cross pipe respectively and are fixedly connected with the rear cross pipe respectively.

4. The seat height adjustment push rod motor mounting structure of claim 2, characterized in that, The moving mechanism comprises a motor, a lead screw, a moving nut and a connecting rod, the motor penetrates through the step screw and is mounted between the two bushings, the lead screw is fixedly connected with the output end of the motor, the moving nut is threadedly connected with the lead screw and is located around the lead screw, and the connecting rod is fixedly connected with the moving nut and is connected with the rear connecting rod.

5. The seat height adjustment push rod motor mounting structure of claim 4, characterized in that, The lead screw has a limiting block, the limiting block is fixedly connected with the lead screw and is located on the side of the lead screw away from the motor.

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