CN217074135U

CN217074135U - Automobile leg support driver

Info

Publication number: CN217074135U
Application number: CN202123176103.8U
Authority: CN
Inventors: 池瑞伟; 舒易久; 陈亦俭
Original assignee: Zhejiang Ruiwei Mechanical And Electrical Technology Co ltd
Current assignee: Zhejiang Ruiwei Mechanical And Electrical Technology Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-07-29
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses an automobile leg support driver, which comprises a box body, a support frame, a motor and a driver component, wherein the motor is arranged in the box body; the motor is in transmission connection with a driver assembly, and the driver assembly consists of a worm, a bevel gear shaft and a screw; the output shaft of motor connects the worm, skewed tooth axle and screw rod transmission in proper order connect and constitute second grade auto-lock structure, through worm and skewed tooth axle speed reduction, skewed tooth axle and screw rod constitute lead screw nut drive mechanism, the front end of screw rod is connected on seat leg holds in the palm the support in order to output thrust. The driver of the utility model can realize two-stage self-locking, realize the stability of the mechanism, and ensure the stability and safety of the performance when the seat is impacted and bumped; through configuration optimization design, the utility model discloses a motor has the noise little, vibrates little characteristics.

Description

Automobile leg support driver

Technical Field

The utility model belongs to the technical field of auto-parts technique and specifically relates to a car leg holds in palm driver is related to.

Background

The seat leg support adjustment is derived from seat leg support adjustment on an airplane, and leg fatigue of long-time sitting can be relieved. Leg rests have also been derived from car seats and are primarily used to assist in increasing the leg support area for the occupant to improve the comfort of the ride. The chair leg support can be adjusted to support the crus by adjusting the angle, and is divided into the leg support adjustment of a front-row chair and a rear-row chair. However, the existing automobile seat leg support mostly adopts a one-level self-locking structure, and the safety of the seat when the seat is impacted and bumped cannot be guaranteed; in addition, the noise generated by the motor during operation can also reduce the experience of the rider.

SUMMERY OF THE UTILITY MODEL

In order to overcome the disadvantages of the prior art, the present invention provides a leg support driver for a vehicle to solve the problems mentioned in the background art.

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

an automobile leg support driver comprises a box body, a supporting frame, a motor and a driver assembly, wherein the motor is arranged in the box body; the motor is in transmission connection with a driver assembly, and the driver assembly consists of a worm, a bevel gear shaft and a screw; an output shaft of the motor is connected with a worm, the worm, a bevel gear shaft and a screw are sequentially in transmission connection to form a secondary self-locking structure, the worm and the bevel gear shaft decelerate, the bevel gear shaft and the screw form a screw nut transmission mechanism, and the front end of the screw is connected to the seat leg support bracket to output thrust.

Preferably, the worm is in transmission connection with a bevel gear shaft through a gear, and the bevel gear shaft is in transmission connection with the screw rod through a thread.

Preferably, the output shaft of the motor is fixedly arranged in the box body through a motor bearing; a stop plate is arranged between the box body and the support frame and is installed on the support frame through screws.

Preferably, the bevel gear shaft further comprises a first shaft sleeve and a first flat gasket, the first shaft sleeve and the first flat gasket are sequentially installed in the shaft hole of the box body, one end of the bevel gear shaft penetrates through the first flat gasket and the first shaft sleeve, and the end face of the tooth of the bevel gear shaft is in contact with the end face of the first flat gasket.

More preferably, the bevel gear further comprises a saddle-shaped spacer which penetrates the other end of the bevel gear shaft and is in face contact with the other tooth end of the bevel gear shaft.

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

the device consists of a motor and a driver assembly, wherein the driver assembly consists of a worm, a helical gear and a screw rod. The driver is simple in integral assembly, the speed is reduced through the worm and the helical gear, and then the helical gear and the lead screw form a lead screw nut transmission mechanism to output thrust outwards; the driver component can realize two-stage self-locking, realize the stability of the mechanism, guarantee the stability and safety of the performance when the seat is bumped; through the structural optimization design, the vibration-damping device has the characteristics of low noise and low vibration.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of an embodiment of the present invention.

In the figures, the various reference numbers are:

1-a motor; 2-a worm; 3-motor bearings; 4-screw rod sleeve; 5-a box body; 6-lower screw; 7-screwing; 8-a support frame; 9-a first sleeve; 10-a first flat gasket; 11-bevel gear shaft; 12-saddle-shaped shim; 13-a second flat gasket; 14-a second bushing; 15-rear cover; 16-a screw; 17-stop plate.

Detailed Description

In order to explain the present invention more clearly, the present invention will be described in further detail with reference to the following embodiments and drawings. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; they may be directly connected to each other, indirectly connected to each other through an intermediate member, or connected to each other through the inside of two members. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example (b):

as shown in fig. 1, the automobile leg rest driver comprises a box body 5, a support frame 8, a motor 1 and a driver assembly, wherein the motor 1 is installed in the box body 5, and the box body 5 is installed in the support frame 8; the motor 1 is in transmission connection with a driver assembly, and the driver assembly consists of a worm 2, a bevel gear shaft 11 and a screw 16; an output shaft of the motor 1 is connected with a worm 2, the worm 2, a bevel gear shaft 11 and a screw 16 are sequentially in transmission connection and form a secondary self-locking structure, the speed is reduced through the worm 2 and the bevel gear shaft 11, the bevel gear shaft 11 and the screw 16 form a screw nut transmission mechanism, and the front end of the screw 16 is connected to a seat leg support bracket to output thrust.

The worm 2 is in transmission connection with a bevel gear shaft 11 through a gear, and the bevel gear shaft 11 is in transmission connection with a screw 16 through a thread. An output shaft of the motor 1 is fixedly arranged in the box body 5 through a motor bearing 3; a stop plate 17 is arranged between the box body 5 and the support frame 8, and the stop plate 17 is installed on the support frame through screws and comprises two lower screws 6 and one upper screw 7. The bevel gear box further comprises a first shaft sleeve 9 and a first flat gasket 10, the first shaft sleeve 9 and the first flat gasket 10 are sequentially installed in a shaft hole of the box body 5, one end of a bevel gear shaft 11 penetrates through the first flat gasket 10 and the first shaft sleeve 9, and the end face of the tooth of the bevel gear shaft 11 is in contact with the end face of the first flat gasket 10. And a saddle-shaped spacer 12, the saddle-shaped spacer 12 penetrating the other end of the bevel gear shaft 11 and contacting the other tooth end surface of the bevel gear shaft 11. The box body is characterized by further comprising a rear cover 15, a second shaft sleeve 14 and a second flat gasket 13, wherein the rear cover 15 is provided with a shaft hole, the second shaft sleeve 14 and the second flat gasket 13 are sequentially installed in the shaft hole of the rear cover 15, and the rear cover 15, the second shaft sleeve 14 and the second flat gasket 13 are installed in the box body 5; the box body 5 and the rear cover 15 are assembled and then sleeved into the inner hole of the support frame 8. The screw 16 successively passes through one end of the side hole of the support frame 8, the rear cover 15, the bevel gear shaft 11 and the box body 5 and then passes through the other end of the side hole of the support frame 8, and the other end of the screw 16 is riveted with the screw sleeve 4.

The working process of the embodiment is as follows:

the front end of the screw 16 is connected to the leg support bracket of the seat, when the motor 1 works, the worm 2 on the motor 1 rotates the bevel gear shaft 11 to operate, the bevel gear shaft 11 pushes the screw 16 to do linear motion, and the screw 16 pushes the leg support bracket to move up and down; when the screw 16 pushes the leg support bracket to ascend and descend, the screw 16 drives the screw sleeve 4, the box body 5, the first shaft sleeve 9, the first flat gasket 10, the bevel gear shaft 11, the saddle gasket 12, the third flat gasket 13, the second shaft sleeve 14 and the rear cover 15 to rotate around the circle center of the inner hole of the support bracket 8.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention more clearly, and are not limiting to the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above description, and all the embodiments cannot be exhaustive, and all the obvious variations or changes are still within the scope of the present invention.

Claims

1. An automobile leg support driver is characterized by comprising a box body, a supporting frame, a motor and a driver assembly, wherein the motor is installed in the box body; the motor is in transmission connection with a driver assembly, and the driver assembly consists of a worm, a bevel gear shaft and a screw; the output shaft of motor connects the worm, skewed tooth axle and screw rod transmission in proper order connect and constitute second grade auto-lock structure, through worm and skewed tooth axle speed reduction, skewed tooth axle and screw rod constitute lead screw nut drive mechanism, the front end of screw rod is connected on seat leg holds in the palm the support in order to output thrust.

2. The leg rest actuator of claim 1, wherein the worm is in geared connection with a bevel shaft, and wherein the bevel shaft is in threaded connection with a screw.

3. The automobile leg rest driver as claimed in claim 1, wherein the output shaft of the motor is fixedly mounted in the box body through a motor bearing; a stop plate is arranged between the box body and the support frame and is installed on the support frame through screws.

4. The automobile leg rest driver as claimed in claim 1, further comprising a first bushing and a first flat gasket, wherein the first bushing and the first flat gasket are sequentially installed in the shaft hole of the box body, one end of the bevel gear shaft penetrates through the first flat gasket and the first bushing, and a tooth end surface of the bevel gear shaft contacts with an end surface of the first flat gasket.

5. The leg rest driver for cars of claim 4, characterized by further comprising a saddle washer passing through the other end of the bevel gear shaft and contacting the other tooth end face of the bevel gear shaft.