CN217320130U

CN217320130U - Vehicle seat with adjustable backrest height

Info

Publication number: CN217320130U
Application number: CN202220358327.6U
Authority: CN
Inventors: 胡建
Original assignee: Wuxi Yuanjing Locomotive Parts Co ltd
Current assignee: Wuxi Yuanjing Locomotive Parts Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-08-30
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a car seat with adjustable back height, the on-line screen storage device comprises a base, base fixedly connected with motor, the output shaft of motor has the seat through fore-set sliding connection, the upper end fixedly connected with back of seat, the lower extreme symmetry of seat is equipped with electric telescopic handle, the fore-set is connected with two-way screw rod through the drive assembly meshing, electric telescopic handle passes through two-way screw rod and seat sliding connection. The utility model has the advantages that the top column is arranged, the stress support between the upper surface of the top column and the support plate replaces the connecting rod connection mode in the traditional seat adjustment, the bending damage of the support structure in the long-term use process of a user is avoided, and the use safety of the seat is improved; through setting up electric telescopic handle for the seat controls the electric telescopic handle at seat both ends after the altitude mixture control is accomplished and stretches out and draws back the action, makes the seat can carry out the angle change, promotes the travelling comfort that the user drove experience.

Description

Vehicle seat with adjustable backrest height

Technical Field

The utility model belongs to the technical field of the car, especially, relate to a car seat with adjustable back height.

Background

With the rapid development of the technology level, the automobile has gradually entered the family and becomes one of the common tools for people to go out and work, but with the higher and higher requirements on the comfort and safety of automobile driving, the defects of the automobile seat in the actual use process of the automobile are also needed to be improved urgently.

Through the retrieval, chinese patent No. CN107953807A discloses a height-adjustable car seat, including backrest, seat cushion, the backrest lower extreme is connected with the vehicle floor, and the seat cushion pastes the backrest setting, and the seat cushion is connected with the vehicle floor through a plurality of linking bridge, and the linking bridge sets up to quadrangle hinge connecting rod structure, and the linking bridge includes four connecting rods, and the connecting rod and the vehicle floor fixed connection of every linking bridge lower extreme set up multichannel spout bottom the seat cushion.

In view of the above related technologies, the inventor thinks that the height adjustment control of the device mainly works in a connecting rod supporting mode in the actual use process, but the connecting rod still has the situation of bending damage in the long-term use process, which affects the safety of seat adjustment support, and meanwhile, the seat cannot be adjusted at a certain angle according to the actual requirement after the height adjustment, so that the comfort and the practicability of the seat use are reduced.

To this end, we propose a car seat with an adjustable backrest height that solves the above mentioned problems.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a car seat with adjustable back height, the device can to propose among the solution above-mentioned background art that the support effect is poor and can't carry out angular adjustment's problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a vehicle seat with an adjustable backrest height comprises a base, wherein a motor is fixedly connected to the base, an output shaft of the motor is connected with the seat in a sliding mode through a top column, the upper end of the seat is fixedly connected with a backrest, electric telescopic rods are symmetrically arranged at the lower end of the seat, the top column is connected with a two-way screw rod in a meshing mode through a transmission assembly, and the electric telescopic rods are connected with the seat in a sliding mode through the two-way screw rod;

the transmission assembly comprises a worm and a worm wheel which are meshed with each other, the worm is fixedly connected with the ejection column in a coaxial mode, and the worm wheel is fixedly connected with the bidirectional screw.

Furthermore, the curved surface of the top pillar adopts an Archimedes spiral line structure, the base is provided with a groove, and the top pillar is rotatably connected with the groove.

Furthermore, the middle position of seat fixedly connected with backup pad, the backup pad rotates through the connecting rod and is connected with the slider, slider and fore-set sliding connection.

Furthermore, the slider adopts spherical structure, the slider passes through guide rail and fore-set sliding connection, the maximum diameter size of slider is greater than the opening diameter size of guide rail.

Furthermore, one end of the electric telescopic rod is rotatably connected with the base, and the other end of the electric telescopic rod is slidably connected with the base through a limiting block.

Furthermore, the base is symmetrically provided with T-shaped grooves, and the limiting blocks are connected with the T-shaped grooves in a sliding mode through two-way screws.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the top column, the stressed support between the upper surface of the top column and the support plate replaces the connecting rod connection mode in the traditional seat adjustment, so that the bending damage of the support structure in the long-term use process of a user is avoided, and the use safety of the seat is improved;

2. through setting up electric telescopic handle for the seat is controlled the electric telescopic handle at seat both ends and is stretched out and drawn back the action after the altitude mixture control is accomplished, makes the seat carry out the angle change, promotes the travelling comfort that the user drove experience.

Drawings

Fig. 1 is a schematic structural view of a vehicle seat with an adjustable backrest height according to the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

fig. 3 is a partial sectional structural view of fig. 1.

In the figure: 1. a base; 11. a groove; 12. a T-shaped slot; 2. a motor; 3. a top pillar; 31. a guide rail; 4. a seat; 5. a backrest; 6. an electric telescopic rod; 61. a limiting block; 7. a transmission assembly; 71. a worm; 72. a worm gear; 8. a bidirectional screw; 9. a support plate; 91. a connecting rod; 92. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, a car seat with adjustable backrest height comprises a base 1, wherein a motor 2 is fixedly connected to the base 1, an output shaft of the motor 2 is slidably connected to a seat 4 through a top post 3, it should be noted that the motor 2 adopts a common brake control motor 2 on the market, the motor is fixed to one side of the base 1 and used for driving the top post 3, a groove 11 is formed in the base 1, and a rotating shaft of the top post 3 is rotatably connected with two sides of the groove 11 through a bearing.

It is worth mentioning that as shown in fig. 1 and 3, the curved surface of the top pillar 3 adopts an archimedes spiral line structure, the middle position of the seat 4 is fixedly connected with a supporting plate 9, the supporting plate 9 is rotatably connected with a slider 92 through a connecting rod 91, the slider 92 is slidably connected with the top pillar 3, wherein the slider 92 adopts a spherical structure, the slider 92 is provided with a notch, the connecting rod 91 is rotatably connected with the notch through a rotating shaft, the slider 92 is slidably connected with the top pillar 3 through a guide rail 31, the maximum diameter size of the slider 92 is larger than the opening diameter size of the guide rail 31, so that the top pillar 3 drives the supporting plate 9 to lift through the curved surfaces with different heights in the rotating process, further the height adjustment work of the seat 4 is realized, the bending damage of the supporting structure in the long-term use process is avoided through the mode that the connecting rod 91 is replaced by the stressed support between the upper surface of the top pillar 3 and the supporting plate 9, the safety of the use of the seat 4 is improved.

As shown in fig. 1, the upper end fixedly connected with back 5 of seat 4, the lower extreme symmetry of seat 4 are equipped with electric telescopic handle 6, it should be noted that, electric telescopic handle 6's concrete structure be prior art with the utility model discloses an innovation point is irrelevant, and electric telescopic handle 6's one end and base 1 rotate to be connected, electric telescopic handle 6's the other end and base 1 sliding connection.

As shown in fig. 2, the top pillar 3 is engaged with a bidirectional screw 8 through a transmission assembly 7, the electric telescopic rod 6 is slidably connected with the seat 4 through the bidirectional screw 8, it should be noted that the transmission assembly 7 includes a worm 71 and a worm wheel 72 which are engaged with each other, the worm 71 is coaxially and fixedly connected with the top pillar 3, the worm wheel 72 is fixedly connected with the bidirectional screw 8, so that the top pillar 3 can drive the bidirectional screw 8 to rotate through the worm 71 and the worm wheel 72 during the rotation process, wherein, the base 1 is symmetrically provided with T-shaped grooves 12, the two-way screw rods 8 are rotationally connected with two ends of the T-shaped grooves 12 through bearings, the electric telescopic rod 6 is movably connected with the two-way screw rods 8 through a limiting block 61, the limiting blocks at two ends of the same two-way screw rod 8 are provided with screw holes with the same screw pitch and opposite directions, when the bidirectional screw 8 rotates, the limiting block 61 can drive the bottom of the electric telescopic rod 6 to move towards one end close to each other or move towards one end away from each other.

Now, the operation principle of the present invention is described as follows:

when the device is used, the motor 2 is started, the motor 2 drives the top post 3 and the groove 11 of the base 1 to rotate, the supporting plate 9 slides through the spherical sliding block 92 and the guide rail 31 in the rotating process of the top post 3, the seat 4 is jacked up or pulled down along with the curved surfaces of the top post 3 with different heights, the worm 71 fixedly connected with the two ends of the top post 3 drives the two-way screw 8 to rotate through the worm wheel 72 in meshing connection, the two-way screw 8 drives the limiting block 61 and the T-shaped groove 12 to slide, so that the bottom of the electric telescopic rod 6 moves towards one end close to each other or one end far away from each other, synchronous lifting adjustment of the positions of the middle and two ends of the seat 4 is realized, when a user needs to adjust the angle of the seat 4, the electric telescopic rods 6 at the two ends of the seat 4 are controlled to stretch through the control device, and the sliding block 92 and the guide rail 31 fixedly connected with the supporting plate 9 rotate at the moment, the seat 4 is changed in angle, and comfort and safety of driving experience of a user are improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The vehicle seat with the height-adjustable backrest comprises a base (1) and is characterized in that the base (1) is fixedly connected with a motor (2), an output shaft of the motor (2) is connected with a seat (4) in a sliding mode through a top column (3), the upper end of the seat (4) is fixedly connected with a backrest (5), the lower end of the seat (4) is symmetrically provided with electric telescopic rods (6), the top column (3) is connected with a bidirectional screw rod (8) in a meshing mode through a transmission assembly (7), and the electric telescopic rods (6) are connected with the seat (4) in a sliding mode through the bidirectional screw rod (8);

the transmission assembly (7) comprises a worm (71) and a worm wheel (72) which are meshed with each other, the worm (71) is coaxially and fixedly connected with the ejection column (3), and the worm wheel (72) is fixedly connected with the bidirectional screw (8).

2. The car seat with the adjustable backrest height as claimed in claim 1, characterized in that the curved surface of the top pillar (3) adopts an Archimedes spiral structure, the base (1) is provided with a groove (11), and the top pillar (3) and the groove (11) are rotatably connected.

3. The vehicle seat with the adjustable backrest height as claimed in claim 1, characterized in that a supporting plate (9) is fixedly connected to the middle position of the seat (4), a sliding block (92) is rotatably connected to the supporting plate (9) through a connecting rod (91), and the sliding block (92) is slidably connected with the top column (3).

4. A car seat with adjustable backrest height according to claim 3, characterized in that the slider (92) is of a spherical structure, the slider (92) is slidably connected with the top pillar (3) through a guide rail (31), and the maximum diameter dimension of the slider (92) is larger than the opening diameter dimension of the guide rail (31).

5. The vehicle seat with the adjustable backrest height as claimed in claim 1, characterized in that one end of the electric telescopic rod (6) is rotatably connected with the base (1), and the other end of the electric telescopic rod (6) is slidably connected with the base (1) through a limit block (61).

6. The vehicle seat with the adjustable backrest height as claimed in claim 5, characterized in that the base (1) is symmetrically provided with T-shaped grooves (12), and the limiting blocks (61) are slidably connected with the T-shaped grooves (12) through two-way screws (8).