CN210478630U

CN210478630U - Adjustable automobile safety belt lock catch

Info

Publication number: CN210478630U
Application number: CN201921160349.6U
Authority: CN
Inventors: 舒金报; 宁蓉; 唐正强; 陈雷; 韩文元; 马悦; 何康锋; 张海平; 朱劲锋
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-05-08
Anticipated expiration: 2029-07-22

Abstract

The utility model aims at providing a car blet hasp with adjustable, including the hasp, the hasp links to each other with elevating system, and the reciprocating motion of direction about elevating system drive hasp was made. In the scheme, before the passenger fastens the safety belt, the lifting mechanism drives the lock catch to move upwards to a position convenient for fastening the safety belt; after the safety belt is fastened, the lifting mechanism drives the lock catch to move downwards to a comfortable position where the passenger can not be interfered when taking the seat, and therefore the requirement of different people on the comfort of wearing the safety belt is met.

Description

Adjustable automobile safety belt lock catch

Technical Field

The utility model relates to a car blet field, concretely relates to safety belt hasp that can upper and lower adjusting position.

Background

Safety belts are generally used in automobiles as safety facilities, and the safety belts are normally unlocked and fastened by the matching relationship of the inserting tongues and the lock catches when in use. The safety belt lock catch used in the prior automobile is generally connected with a seat framework through a steel plate support or a steel wire rope, can be adjusted in a front-back small range, but cannot be adjusted up and down. In the design process of the lock catch, if the lock catch is designed to be always higher than the passenger seat, the safety belt can be conveniently and smoothly fastened, but a passenger sitting on the seat is easily pressed by the lock catch; if the height position of the lock catch is designed to be lower, the riding comfort of passengers can be improved in the using process of the vehicle, but due to the obstruction of the seat, the safety belt lock tongue cannot be conveniently inserted into the lock catch, and particularly, the influence is more obvious for people wearing wadded jacket or obese people in winter.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can adjust device of safety belt hasp position from top to bottom.

In order to realize the purpose, the utility model discloses a technical scheme be: an adjustable automobile safety belt lock catch comprises a lock catch, wherein the lock catch is connected with a lifting mechanism, and the lifting mechanism drives the lock catch to do reciprocating motion in the vertical direction.

In the scheme, before the passenger fastens the safety belt, the lifting mechanism drives the lock catch to move upwards to a position convenient for fastening the safety belt; after the safety belt is fastened, the lifting mechanism drives the lock catch to move downwards to a comfortable position where the passenger can not be interfered when taking the seat, and therefore the requirement of different people on the comfort of wearing the safety belt is met.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the assembly of the worm and the fixed base;

FIG. 4 is a schematic view of a cannula;

fig. 5 is a cross-sectional view of fig. 1.

Detailed Description

An adjustable automobile safety belt lock catch comprises a lock catch 10, wherein the lock catch 10 is connected with a lifting mechanism, and the lifting mechanism drives the lock catch 10 to reciprocate in the vertical direction. Before the passenger fastens the safety belt, the lifting mechanism drives the lock catch 10 to move upwards to a position convenient for fastening the safety belt; after the safety belt is fastened, the lifting mechanism drives the lock catch 10 to move downwards to a comfortable position where the passenger does not interfere with the seat, so that the requirement of different people on the comfort of wearing the safety belt is met.

Preferably, as shown in fig. 1 to 5, the lifting mechanism includes a worm 30 vertically disposed on the lead, a lower end of the worm 30 is connected to an output shaft of the motor 20, a sleeve 40 is sleeved on an outer periphery of the worm 30, a lower end of the sleeve 40 is connected to the motor 20, the latch 10 is fixed to an upper end of the sleeve 40, a fixing base 50 is sleeved on an outer periphery of the sleeve 40, the fixing base 50 includes a mounting portion 51 connected to the seat frame and a limiting sleeve 52 sleeved on an outer periphery of the sleeve 40, a gear 521 is disposed on an inner wall of the limiting sleeve 52, and the gear 521 extends from a missing portion 41 formed on the sleeve 40 and engages with a spiral gear of the worm 30 to form a worm and gear mechanism.

Firstly, the fixed base 50 is fixedly connected to the seat frame through the mounting portion 51, that is, the fixed base 50 can neither move up and down nor rotate, and the position is fixed, the gear teeth 521 of the position limiting sleeve 52 are engaged with the helical teeth of the worm 30 to form a worm gear mechanism, the output shaft of the motor 20 rotates to drive the worm 30 to rotate, because the position of the position limiting sleeve 52 is fixed, the worm 30 is communicated with the motor 20 to move up and down, and because the lower end of the sleeve 40 is connected with the housing of the motor 20, the sleeve 40 does not rotate but moves up and down along with the motor 20, that is, the lock catch 10 at the upper end of the sleeve 40 is driven to move up and down. Meanwhile, the worm 30 is self-locking, so that the transmission is more stable, the spiral teeth of the worm 30 are continuous, the spiral teeth are also continuous when being meshed with the gear teeth 521, and the spiral teeth do not enter and exit the meshing process, so that the transmission is stable and the noise is low.

In order to prevent the sleeve 40 from rotating circumferentially, a flat surface 42 is provided on the outer wall of the sleeve 40 outside the missing portion 41, a limit plate 53 extends upward from the upper end of the limit sleeve 52, and the limit plate 53 abuts against the flat surface 42 to limit the circumferential rotation of the sleeve 40. Because the outer walls of the sleeve 40 on both sides of the plane 42 are arc surfaces, the arc surfaces interact with the plane on the limit plate 53 to limit the circumferential rotation of the sleeve 40.

Because the gear teeth 521 on the stop collar 52 outside the sleeve 40 are engaged with the helical teeth on the worm 30 inside the sleeve 40, the missing part 41 extends upwards from the middle-lower position of the sleeve 40 to the upper end of the sleeve 40 and is in a long strip shape, and the width of the missing part 41 is matched with the width of the gear teeth 521. The helical teeth on the worm 30 corresponding to the missing part 41 are engaged with the gear teeth 521 to adjust the position of the lock catch 10, and the missing part 41 can further limit the circumferential rotation of the sleeve 40.

In order to install the lock catch 10, a lock catch mounting plate 43 is disposed on the outer wall of the upper end of the sleeve 40, and a mounting hole 431 is opened on the plate surface of the mounting plate 43.

The worm 30 may tilt when rotating in the sleeve 40, and the upper end of the worm 30 is connected to a worm bush 31, and the worm bush 31 forms a rotating fit with the sleeve 40. The worm bush 31 is equivalent to a bearing seat, and plays a role of supporting the upper end of the worm 30, and the lower end of the worm 30 is connected with the motor 20, thereby ensuring that the worm 30 does not incline when rotating.

The latch 10 is connected to a connector 60 for connection to an electronic control unit which controls forward/reverse rotation of the motor 20. Before the passenger uses the vehicle, the motor 20 is controlled by an electric control unit signal to drive the worm 30 to rotate in the forward direction, and the sleeve 40 and the lock catch 10 move upwards, so that the passenger can conveniently fasten a safety belt; when a passenger fastens the safety belt, the internal signal of the lock catch 10 is transmitted to the electronic control unit through the lock catch connector 60, the electronic control unit sends a command to reversely rotate through the motor 20, and the sleeve 40 and the lock catch 10 move downwards to reach a position where the passenger does not interfere with the comfort of the passenger sitting on the seat. The locking mechanism can be stopped at any position in the adjustable stroke of the sleeve 40, and the comfort requirement of different people for fastening the safety belt can be met.

Claims

1. The utility model provides a car blet hasp with adjustable which characterized in that: the lifting lock comprises a lock catch (10), wherein the lock catch (10) is connected with a lifting mechanism, and the lifting mechanism drives the lock catch (10) to do reciprocating motion in the vertical direction.

2. The adjustable lap belt buckle of claim 1, wherein: elevating system including being located vertical worm (30) of arranging of plumbous, the lower extreme of worm (30) links to each other with the output shaft of motor (20), the periphery cover of worm (30) is equipped with sleeve pipe (40), the lower extreme and the motor (20) of sleeve pipe (40) are connected, hasp (10) are fixed in the upper end of sleeve pipe (40), the periphery cover of sleeve pipe (40) is equipped with fixed baseplate (50), fixed baseplate (50) are including installation department (51) be connected with seat skeleton and the stop collar (52) of cover pipe (40) periphery are established to the cover, be provided with teeth of a cogwheel (521) on the inner wall of stop collar (52), the missing part (41) of seting up on sleeve pipe (40) of teeth of a cogwheel (521) stretch into and constitute worm gear with the spiral tooth meshing of worm (30).

3. The adjustable car seatbelt buckle as claimed in claim 2, wherein: the outer wall of the sleeve (40) outside the missing part (41) is provided with a plane (42), the upper end of the limiting sleeve (52) extends upwards to be provided with a limiting plate (53), and the limiting plate (53) is attached to the plane (42) to limit the circumferential rotation of the sleeve (40).

4. The adjustable car seatbelt buckle as claimed in claim 2, wherein: the missing part (41) extends upwards to the upper end of the sleeve (40) from the middle-lower part of the sleeve (40) and is in a long strip shape, and the width of the missing part (41) is matched with the width of the gear teeth (521).

5. The adjustable car seatbelt buckle as claimed in claim 2, wherein: the outer wall of the upper end of the sleeve (40) is provided with a lock catch mounting plate (43), and the surface of the mounting plate (43) is provided with a mounting hole (431).

6. The adjustable lap belt buckle of claim 1, wherein: the upper end of the worm (30) is fixedly connected with a worm bush (31), and the worm bush (31) and the sleeve (40) form a rotating fit.

7. The adjustable lap belt buckle of claim 1, wherein: the lock catch (10) is connected with a plug connector (60) used for being connected with an electric control unit, and the electric control unit controls the forward/reverse rotation of the motor (20).