A high-tune mechanism for a car seat screw rod

Abstract

This utility model relates to a height adjustment mechanism for an automotive seat, comprising: a seat height adjustment mechanism driven by a lead screw motor, wherein the seat height adjustment mechanism is used to drive the seat cushion frame to adjust its height on a slide rail bracket; the seat height adjustment mechanism includes: a second rear LINK bracket, a second front LINK bracket, and a second zero-gravity linkage installed between the second seat cushion side plate and the second slide rail bracket; the two second front LINK brackets, the second seat cushion side plate, the second rear LINK bracket, the second zero-gravity linkage, and the second slide rail bracket form a five-bar linkage supporting the two sides of the second seat cushion side plate; when the seat controller receives a height adjustment signal, the lead screw motor pushes the second rear horizontal tube connecting the two second seat cushion side plates, thereby raising the second seat cushion side plate to achieve seat height adjustment; the advantages of this utility model are: it meets the needs of various seat function adjustments and different usage scenarios.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to an automotive seat lead screw height adjustment mechanism. Background Technology

[0002] In car seat design, seat height adjustment is an important function, accommodating the needs of drivers and passengers of different heights and body types, thus improving seating comfort and driving safety. However, existing car seat height adjustment mechanisms have the following shortcomings: 1. Some height-adjustable seats have a limited range of adjustment, failing to meet the needs of occupants of different sizes; 2. Some seat height-adjustable structures are complex and cannot perfectly integrate with other seat posture adjustment functions, thereby affecting the occupant's riding experience. Utility Model Content

[0003] In view of the above problems, the purpose of this utility model is to provide a car seat screw height adjustment mechanism that can simultaneously meet multiple seat function adjustments, so as to overcome the shortcomings of the prior art.

[0004] This utility model provides a height adjustment mechanism for a car seat screw, including: a seat height adjustment mechanism driven by a screw motor, wherein the seat height adjustment mechanism is used to drive the seat cushion frame to adjust the height on the slide rail bracket;

[0005] The seat height adjustment mechanism includes: a second rear LINK bracket, a second front LINK bracket, and a second zero-gravity linkage installed between the second seat cushion side plate and the second slide rail bracket. The two second front LINK brackets, the second seat cushion side plate, the second rear LINK bracket, the second zero-gravity linkage, and the second slide rail bracket form a five-bar linkage that supports the two second seat cushion side plates. When the seat controller receives the height adjustment signal, the lead screw motor pushes the second rear horizontal tube connecting the two second seat cushion side plates, thereby raising the second seat cushion side plates to achieve seat height adjustment.

[0006] As a preferred embodiment of this utility model, the rear ends of the two symmetrically arranged second seat cushion side plates are connected to the parallel arranged second rear horizontal tube, one end of the two second rear LINK brackets is hinged to the second rear horizontal tube, and the other end of the two second rear LINK brackets is hinged to the third connecting seat of the second slide rail bracket.

[0007] As a preferred embodiment of this utility model, one end of each of the two second front LINK brackets is hinged to the front end of each of the two second seat cushion side panels, the other end of each of the two second front LINK brackets is hinged to the upper end of each of the two second zero gravity connecting rods, the lower end of each of the two second zero gravity connecting rods is hinged to the fourth connecting seat of the second slide rail bracket, and the lower end of each of the two second zero gravity connecting rods is fixedly connected by a horizontally arranged zero gravity front horizontal tube.

[0008] As a preferred embodiment of this utility model, the tail end of the lead screw motor is fixedly connected to the zero-gravity front horizontal tube via a fixed seat, and the lead screw end of the lead screw motor is hinged to the second rear LINK bracket. The lead screw motor pushes the second rear LINK bracket, and the second rear LINK bracket drives the two second seat cushion side panels to rise through the second rear horizontal tube.

[0009] The beneficial effects of this utility model are as follows: it can solve the problems of limited adjustment range of existing high-adjustment structures and inability to match other adjustment functions of the seat, and meet the needs of multiple seat function adjustments and different usage scenarios. Attached Figure Description

[0010] Figure 1 This is one of the overall structural schematic diagrams of Example 1.

[0011] Figure 2 This is the second schematic diagram of the overall structure of Example 1.

[0012] Figure 3 This is a schematic diagram of Example 1.

[0013] Figure 4 This is a schematic diagram of the overall structure of Example 2.

[0014] Figure 5 This is a schematic diagram of Example 2.

[0015] Reference numerals in the attached drawings: 1. First seat cushion side panel; 2. First slide rail bracket; 201. First connecting seat; 202. Second connecting seat; 3. First rear LINK bracket; 4. Tooth plate bracket; 5. First front LINK bracket; 6. First zero-gravity linkage; 7. Angle adjustment motor; 8. First rear cross tube; 9. Second seat cushion side panel; 10. Second slide rail bracket; 10. Third connecting seat; 1001. Fourth connecting seat; 1002. Second rear LINK bracket; 11. Second front LINK bracket; 12. Second zero-gravity linkage; 13. Lead screw motor; 14. Zero-gravity front cross tube; 15. Second rear cross tube; 16. Detailed Implementation

[0016] Example 1

[0017] See Figure 4-5As shown, this embodiment provides a car seat height adjustment mechanism with a lead screw, including: a seat height adjustment mechanism driven by a lead screw motor, which is used to drive the seat cushion frame to adjust its height on a slide rail bracket; the seat height adjustment mechanism includes: a second rear LINK bracket 11, a second front LINK bracket 12, and a second zero-gravity link 13 installed between the second seat cushion side plate 9 and the second slide rail bracket 10. The two second front LINK brackets 12, the second seat cushion side plate 9, the second rear LINK bracket 11, the second zero-gravity link 13, and the second slide rail bracket 10 form a five-bar linkage that supports the two second seat cushion side plates 9. When the seat controller receives a height adjustment signal, the lead screw motor 14 pushes the second rear horizontal tube 16 connecting the two second seat cushion side plates 9, thereby raising the second seat cushion side plates 9 to achieve seat height adjustment. The rear ends of the two symmetrically arranged second seat cushion side panels 9 are connected to the parallel second rear horizontal tube 16. One end of the two second rear LINK brackets 11 is hinged to the second rear horizontal tube 16, and the other end of the two second rear LINK brackets 11 is hinged to the third connecting seat 1001 of the second slide rail bracket 10. One end of the two second front LINK brackets 12 is respectively hinged to the front end of the two second seat cushion side panels 9, and the other end of the two second front LINK brackets 12 is respectively hinged to the upper end of the two second zero gravity connecting rods 13. The lower end of the two second zero gravity connecting rods 13 is hinged to the fourth connecting seat 1002 of the second slide rail bracket 10, and the lower end of the two second zero gravity connecting rods 13 is fixedly connected by the transversely arranged zero gravity front horizontal tube 15. The tail of the lead screw motor 14 is fixedly connected to the zero-gravity front horizontal tube 15 through a fixed seat. The lead screw end of the lead screw motor 14 is hinged to the front end of the second rear LINK bracket 11. The lead screw motor 14 pushes the second rear LINK bracket 11, and the rear end of the second rear LINK bracket 11 drives the two second seat cushion side plates 9 to rise through the second rear horizontal tube 16.

[0018] Working principle: The lead screw of the lead screw motor 14 pushes the second rear horizontal tube 16 through the second rear LINK bracket 11. The second rear horizontal tube 16 drives the first seat cushion side plate 1 to adjust its height. At the same time, the second front LINK bracket 12 and the second zero gravity linkage 13 at the front end of the first seat cushion side plate 1 are linked together to realize the simultaneous adjustment of the front and rear height of the first seat cushion side plate 1.

[0019] Example 2

[0020] See Figure 1-3As shown in the figure, this embodiment provides a height adjustment mechanism for an automotive seat angle adjustment motor, including: a seat height adjustment mechanism driven by an angle adjustment motor, the seat height adjustment mechanism being used to drive the seat cushion frame to adjust its height on a slide rail bracket; the seat height adjustment mechanism includes: a first rear LINK (connection) bracket 3, a toothed plate bracket 4, a first front LINK bracket 5, and a first zero-gravity connecting rod 6 installed between a first seat cushion side plate 1 and a first slide rail bracket 2, the toothed plate bracket 4, the first seat cushion side plate 1 with an angle adjustment motor 7 on one side, the first rear LINK bracket... The frame 3, the first zero-gravity link 6, and the first slide rail bracket 2 form an active five-bar linkage that supports one side of the first seat cushion side plate 1. The first front LINK bracket 5, the other side of the first seat cushion side plate 1 without the angle adjustment motor 7, the first rear LINK bracket 3, the first zero-gravity link 6, and the first slide rail bracket 2 form a driven five-bar linkage that supports the other side of the first seat cushion side plate 1. When the seat controller receives the high-adjustment posture adjustment signal, the angle adjustment motor 7 drives the toothed plate bracket 4, and the toothed plate bracket 4 drives the first seat cushion side plate 1 to rise to achieve seat height adjustment. The rear ends of the two symmetrically arranged first seat cushion side panels 1 are fixedly connected by parallel first rear horizontal tubes 8. The first rear LINK bracket 3 is connected to the first rear horizontal tube 8 near one end of the first seat cushion side panel 1 without the angle adjustment motor 7. The other end of the first rear LINK bracket 3 is hinged to the first connecting seat 201 of the first slide rail bracket 2. The rear end of the toothed plate bracket 4 is connected to the first rear horizontal tube 8 near one end of the first seat cushion side panel 1 with the angle adjustment motor 7. The front end of the toothed plate bracket 4 is hinged to the first connecting seat 201 of the first slide rail bracket 2. The output gear of the angle adjustment motor 7 meshes with the toothed end of the toothed plate bracket 4 and drives the toothed plate bracket 4 to rotate. The toothed plate bracket 4 drives the first seat cushion side panel 1 to rise through the first rear horizontal tube 8. The toothed plate bracket 4 has a waist-shaped hole. A positioning pin is fixedly connected to the first seat cushion side panel 1 with the angle adjustment motor 7 at the position corresponding to the waist-shaped hole. The angle adjustment pin is placed in the waist-shaped hole to limit the adjustment height of the first seat cushion side panel 1. One end of each of the two first front LINK brackets 5 is hinged to the front end of each of the two first seat cushion side panels 1. The other end of each of the two first front LINK brackets 5 is hinged to the upper end of each of the two first zero gravity connecting rods 6. The lower end of each of the two first zero gravity connecting rods 6 is hinged to the second connecting seat 202 of the first slide rail bracket 2. The lower ends of the two first zero gravity connecting rods 6 are fixedly connected by a horizontally arranged zero gravity front connecting tube.

[0021] Working principle: The output gear of the angle adjustment motor 7 drives the toothed plate bracket 4, and the toothed plate bracket 4 drives the active five-link and the driven five-link to move synchronously through the first rear horizontal tube 8 to realize the height adjustment of the first seat cushion side plate 1.

[0022] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A height adjustment mechanism for a car seat lead screw, characterized in that, include: A seat height adjustment mechanism driven by a lead screw motor, the seat height adjustment mechanism being used to drive the seat cushion frame to adjust the height on the slide rail bracket; The seat height adjustment mechanism includes: a second rear LINK bracket, a second front LINK bracket, and a second zero-gravity linkage installed between the second seat cushion side plate and the second slide rail bracket. The two second front LINK brackets, the second seat cushion side plate, the second rear LINK bracket, the second zero-gravity linkage, and the second slide rail bracket form a five-bar linkage that supports the two second seat cushion side plates. When the seat controller receives the height adjustment signal, the lead screw motor pushes the second rear horizontal tube connecting the two second seat cushion side plates, thereby raising the second seat cushion side plates to achieve seat height adjustment.

2. The automotive seat lead screw height adjustment mechanism according to claim 1, characterized in that, The rear ends of the two symmetrically arranged second seat cushion side panels are connected to the parallel arranged second rear cross tubes. One end of the two second rear LINK brackets is hinged to the second rear cross tubes, and the other end of the two second rear LINK brackets is hinged to the third connecting seat of the second slide rail bracket.

3. The automotive seat lead screw height adjustment mechanism according to claim 1, characterized in that, One end of each of the two second front LINK brackets is hinged to the front end of each of the two second seat cushion side panels. The other end of each of the two second front LINK brackets is hinged to the upper end of each of the two second zero gravity links. The lower end of each of the two second zero gravity links is hinged to the fourth connecting seat of the second slide rail bracket. The lower ends of the two second zero gravity links are fixedly connected by a horizontally arranged zero gravity front horizontal tube.

4. The automotive seat lead screw height adjustment mechanism according to claim 1, characterized in that, The tail of the lead screw motor is fixed to the zero-gravity front horizontal tube via a fixed base. The lead screw end of the lead screw motor is hinged to the second rear LINK bracket. The lead screw motor pushes the second rear LINK bracket, and the second rear LINK bracket drives the two second seat cushion side panels to rise through the second rear horizontal tube.

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