Seat frame skeleton with height adjusting function

By combining the front support assembly, rear support assembly, drive assembly, and auxiliary assembly, and utilizing the synergistic effect of the motor drive screw and gas spring, the problem of car seat swaying on bumpy roads is solved, achieving stable lifting and lowering function and improving the comfort of the seat.

CN223850479UActive Publication Date: 2026-01-30LIUZHOU SHUANGYING CO LTD
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Patent Information

Application Number
CN202520427747.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-01-30
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing car seats experience significant back-and-forth movement of the seat frame on bumpy roads, and the single-sided drive configuration results in insufficient restraint.

Method used

The design employs a combination of front support assembly, rear support assembly, drive assembly, motion nut, and auxiliary components. Through the coordinated action of the motor-driven lead screw and gas spring, the seat achieves stable lifting and lowering on both sides.

Benefits of technology

It effectively reduces the back-and-forth swaying of the seat on bumpy roads, improving the stability and comfort of the driving experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile seats, in particular to a seat frame framework with a height adjusting function, which comprises a front support component, two cushion side plates, a rear support component, a driving component, a moving nut, a connecting frame and an auxiliary component. The connecting frame provides mounting conditions for the moving nut, when the height of the seat needs to be adjusted, the driving assembly is started, the driving assembly cooperates with the moving nut to push the front support assembly and the rear support assembly to move, the front support assembly and the rear support assembly drive the two cushion side plates to be lifted towards the side away from a vehicle body, and meanwhile the auxiliary assembly stretches out and draws back to adjust the height of the seat. The front support assembly and the rear support assembly are supported in an auxiliary mode till the seat is adjusted to the preset height, on the contrary, the seat can be lowered, and therefore the problem that a seat frame of an existing automobile seat shakes severely in the front-back direction on a bumpy road section is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, especially to a sitting frame skeleton with height adjusting function. BACKGROUND

[0002] As an indispensable part of automobile accessories, the comfort and functionality of automobile seats have an important influence on the driving experience. In the configuration and function of automobile seats, height adjustment function is relatively common. Usually, the height adjustment function relies on four-bar linkage as the basis, and is realized through motor-driven gear or screw rod.

[0003] However, the existing high-tuning motor is usually arranged on one side of the sitting frame, and is realized through driving the rear connecting rod or the front connecting rod to lift. This one-side driving arrangement causes the sitting frame on one side to be in a locked state, and the other side lacks limitation, resulting in large front and rear shaking of the sitting frame on a bumpy road section. SUMMARY

[0004] The utility model aims at providing a sitting frame skeleton with height adjusting function, aiming at solving the problem of large front and rear shaking of the sitting frame on a bumpy road section of the existing automobile seat.

[0005] To achieve the above-mentioned purpose, the utility model provides a sitting frame skeleton with height adjusting function, which comprises a front support assembly, two cushion edge plates, a rear support assembly, a driving assembly, a moving nut, a connecting frame and an auxiliary assembly.

[0006] Two cushion edge plates are respectively installed on the front support assembly, the rear support assembly is installed on one side of the two cushion edge plates, the driving assembly is installed between the rear support assembly and the front support assembly, the moving nut is installed on the driving assembly, the connecting frame is welded with the moving nut and is installed on the rear support assembly through a stepped bolt, and the auxiliary assembly is installed between the front support assembly and the rear support assembly.

[0007] Among them, the front support assembly comprises two front mounting supports, two front connecting rods and a front cross pipe; the front cross pipe is welded with the two cushion edge plates and is located between the two cushion edge plates, the two front connecting rods are respectively installed on the front cross pipe, and the two front mounting supports are connected with the two front connecting rods through stepped bolts.

[0008] Among them, the rear support assembly comprises a rear cross pipe, two rear connecting rods and two rear mounting supports, the rear cross pipe is riveted with the two cushion edge plates, the two rear connecting rods are respectively welded with the rear cross pipe and are respectively located on the rear cross pipe, and the two rear mounting supports are connected with the two rear connecting rods through stepped bolts.

[0009] The driving assembly comprises a mounting frame one, a motor and a screw rod, the mounting frame one is welded on the front transverse pipe, the motor is installed on one side of the mounting frame one, the screw rod is fixedly connected with the output end of the motor and is threadedly connected with the moving nut.

[0010] The auxiliary assembly comprises a mounting frame two and a gas spring, the mounting frame two is installed on the front transverse pipe through a stepped bolt, and the gas spring is installed on one side of the mounting frame two, and the output end of the gas spring is connected with the rear connecting rod.

[0011] The front support assembly and the rear support assembly provide mounting conditions for two seat cushion side plates, the connecting frame provides a mounting condition for the moving nut, when height adjustment of the seat is needed, the driving assembly is started, the driving assembly drives the front support assembly and the rear support assembly to move in cooperation with the moving nut, the front support assembly and the rear support assembly drive the two seat cushion side plates to lift to the side away from the vehicle body, meanwhile, the auxiliary assembly is telescopic, the front support assembly and the rear support assembly are assisted and supported, the front and rear shaking of the seat frame of the existing automobile seat on a bumpy road section is prevented, until the seat is adjusted to a preset height, and vice versa, the seat can be lowered, thereby solving the problem of large front and rear shaking of the seat frame of the existing automobile seat on a bumpy road section. 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 embodiment or prior art description will be briefly introduced.

[0013] Fig. 1 is a structural schematic view of the seat frame skeleton with height adjustment function of the utility model.

[0014] Fig. 2 is another direction structural schematic view of the seat frame skeleton with height adjustment function of the utility model.

[0015] In the figure: 1-front transverse pipe, 2-rear transverse pipe, 3-seat cushion side plate, 4-front connecting rod, 5-front mounting support, 6-rear connecting rod, 7-rear mounting support, 8-mounting support two, 9-gas spring, 10-mounting frame one, 11-motor, 12-screw rod, 13-moving nut, 14-connecting frame. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described in detail below, 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 have height function's seat frame skeleton, including front support subassembly, two seat cushion edge board 3, rear support subassembly, drive subassembly, motion nut 13, connecting frame 14 and auxiliary assembly,

[0018] Two seat cushion edge board 3 are installed on front support subassembly respectively, rear support subassembly is installed to one side of two seat cushion edge board 3, drive subassembly is installed between rear support subassembly and front support subassembly, motion nut 13 is installed on drive subassembly, connecting frame 14 is welded with motion nut 13, and is installed on rear support subassembly through step bolt, auxiliary assembly is installed between front support subassembly and rear support subassembly.

[0019] In the embodiment, the front support subassembly and the rear support subassembly provide installation conditions for the two seat cushion edge boards 3, the connecting frame 14 provides installation conditions for the motion nut 13, when height adjustment of the seat is needed, the drive subassembly is started, the drive subassembly cooperates with the motion nut 13 to push the front support subassembly and the rear support subassembly to move, the front support subassembly and the rear support subassembly drive the two seat cushion edge boards 3 to lift away from the vehicle body, and the auxiliary assembly is telescopic to assist support the front support subassembly and the rear support subassembly until the seat is adjusted to the preset height, and vice versa to lower the seat, thereby solving the problem of large front and rear shaking of the seat frame on the bumpy road.

[0020] Further, the front support subassembly includes two front mounting brackets 5, two front connecting rods 4, and a front cross pipe 1. The front cross pipe 1 is welded with the two seat cushion edge boards 3 and located between the two seat cushion edge boards 3. The two front connecting rods 4 are respectively installed on the front cross pipe 1. The two front mounting brackets 5 are connected with the two front connecting rods 4 through step bolts.

[0021] In the embodiment, the two front mounting brackets 5 can fix the seat on the vehicle body. The two front connecting rods 4 can drive the front cross pipe 1 to rise or fall. The front cross pipe 1 can drive the two seat cushion edge boards 3 to rise and fall.

[0022] Further, the rear support assembly comprises a rear cross pipe 2, two rear connecting rods 6 and two rear mounting supports 7, the rear cross pipe 2 is riveted with two seat cushion side plates 3, two rear connecting rods 6 are respectively welded with the rear cross pipe 2 and are respectively located on the rear cross pipe 2, and two rear mounting supports 7 are respectively connected with two rear connecting rods 6 through step bolts.

[0023] In the embodiment, the seat can be fixed on the vehicle body through two rear mounting supports 7, the rear cross pipe 2 can be lifted or lowered through two rear connecting rods 6, and two seat cushion side plates 3 can be lifted or lowered through the rear cross pipe 2.

[0024] Further, the driving assembly comprises a mounting bracket 10, a motor 11 and a lead screw 12, the mounting bracket 10 is welded on the front cross pipe 1, the motor 11 is installed on one side of the mounting bracket 10, the lead screw 12 is fixedly connected with the output end of the motor 11 and is threadedly connected with the moving nut 13.

[0025] In the embodiment, the mounting bracket 10 provides mounting conditions for the motor 11, the motor 11 can drive the lead screw 12 to rotate forward or reverse, and the lead screw 12 cooperates with the moving nut 13 to drive two front connecting rods 4 on the front cross pipe 1 and two rear connecting rods 6 on the rear cross pipe 2 to rotate.

[0026] Further, the auxiliary assembly comprises a mounting bracket 8 and a gas spring 9, the mounting bracket 8 is installed on the front cross pipe 1 through a step bolt, and the gas spring 9 is installed on one side of the mounting bracket 8, and the output end of the gas spring 9 is connected with the rear connecting rod 6.

[0027] In the embodiment, the mounting bracket provides mounting conditions for the gas spring 9, and when the rear connecting rod 6 and the front connecting rod 4 move, the gas spring 9 can be extended or retracted to assist in guiding and limiting the rear connecting rod 6 and the front connecting rod 4.

[0028] When it is necessary to adjust the height of the seat, the motor 11 is started, the motor 11 drives the lead screw 12 to rotate, the lead screw 12 cooperates with the moving nut 13 to drive two front connecting rods 4 and two rear connecting rods 6 to rotate, two front connecting rods 4 and two rear connecting rods 6 drive two seat cushion side plates 3 on the front cross pipe 1 and the rear cross pipe 2 to be lifted away from the vehicle body, and at the same time, the gas spring 9 is extended or retracted to support the front cross pipe 1 and the rear connecting rod 6, so as to prevent the seat from shaking forward and backward on a bumpy road section, until the seat is adjusted to a preset height, that is, the adjustment is completed, and vice versa, so as to solve the problem that the existing automobile seat shakes greatly forward and backward on a bumpy road section.

[0029] The above disclosure only shows 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 frame with height adjustment function, characterized in that, it comprises a front support assembly, two seat cushion side plates, a rear support assembly, a drive assembly, a movement nut, a connecting frame and an auxiliary assembly; two said seat cushion side plates are respectively installed on said front support assembly, said rear support assembly is installed on one side of two said seat cushion side plates, said drive assembly is installed between said rear support assembly and said front support assembly, said movement nut is installed on said drive assembly, said connecting frame is welded with said movement nut and is installed on said rear support assembly through a stepped bolt, and said auxiliary assembly is installed between said front support assembly and said rear support assembly.

2. The seat frame with height adjustment function according to claim 1, characterized in that, said front support assembly comprises two front mounting supports, two front connecting rods and a front cross pipe; said front cross pipe is welded with two said seat cushion side plates and is located between two said seat cushion side plates, two said front connecting rods are respectively installed on said front cross pipe, and two said front mounting supports are connected with two said front connecting rods through stepped bolts.

3. The seat frame with height adjustment function according to claim 2, characterized in that, said rear support assembly comprises a rear cross pipe, two rear connecting rods and two rear mounting supports; said rear cross pipe is riveted with two said seat cushion side plates, two said rear connecting rods are respectively welded with said rear cross pipe and are respectively located on said rear cross pipe, and two said rear mounting supports are connected with two said rear connecting rods through stepped bolts.

4. The seat frame with height adjustment function according to claim 3, characterized in that, said drive assembly comprises a mounting frame one, a motor and a lead screw; said mounting frame one is welded on said front cross pipe, said motor is installed on one side of said mounting frame one, said lead screw is fixedly connected with an output end of said motor and is threadedly connected with said movement nut.

5. The seat frame with height adjustment function according to claim 4, characterized in that, said auxiliary assembly comprises a mounting frame two and a gas spring; said mounting frame two is installed on said front cross pipe through a stepped bolt, said gas spring is installed on one side of said mounting frame two, and an output end of said gas spring is connected with said rear connecting rod.