CN219115292U

CN219115292U - Automobile seat backrest lock capable of reducing abrasion of buffer block

Info

Publication number: CN219115292U
Application number: CN202320081336.XU
Authority: CN
Inventors: 谢震
Original assignee: Shanghai Mingqing Plastic Co ltd
Current assignee: Shanghai Mingqing Plastic Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-06-02
Anticipated expiration: 2033-01-13

Abstract

The utility model provides a can reduce car seat back lock of buffer block wearing and tearing, includes the back lock body, the back lock body include the bottom plate, be provided with opening decurrent notch in the bottom plate, the bottom of notch is provided with a buffer block, the side of buffer block is provided with one row of triangle-shaped tooth, be provided with first fixed column on the bottom plate, it has the pawl to articulate through first fixed column on the bottom plate, be provided with the torsional spring between first fixed column and the pawl, the torsional spring biases the pawl anticlockwise, be provided with opening bayonet socket and the stop groove to the right on the pawl, it has the stop hook to articulate through the second fixed column on the bottom plate to the right of pawl. According to the utility model, the wear caused by the instant impact of the lock catch on the buffer block is reduced by adopting the triangular teeth on the contact surface of the buffer block and the lock catch, so that the lock catch and the buffer block form multi-point contact, the buffer effect is effectively realized in long-term use, the wear surface can be compensated, the opening and closing of the lock is converted from rigidity to flexibility, and the use adaptability is greatly improved.

Description

Automobile seat backrest lock capable of reducing abrasion of buffer block

Technical Field

The utility model relates to the field of machinery, in particular to an automobile seat, and particularly relates to an automobile seat backrest lock capable of reducing abrasion of a buffer block.

Background

The automobile seat backrest lock is used for locking the backrest after the backrest angle is adjusted. The seat back lock in the prior art comprises a bottom plate, wherein a notch is formed in the bottom plate, a rubber buffer block is arranged at the bottom of the notch and used for limiting a lock catch, the lock catch enters the notch when being opened or closed or locked, the buffer block is subjected to instant rapid impact of the lock catch, and because the buffer block is in point contact, after long-term use, the contact surface of the rubber block is worn to generate a gap, so that the buffer effect of the buffer block is greatly reduced, and noise is easily generated on a bumpy road surface.

Disclosure of Invention

The utility model aims to provide an automobile seat back lock capable of reducing abrasion of a buffer block, which aims to solve the technical problem that the buffer block of the back lock in the prior art is easy to abrade.

The utility model discloses an automobile seat backrest lock capable of reducing abrasion of a buffer block, which comprises a backrest lock body, wherein the backrest lock body comprises a bottom plate, a notch with a downward opening is arranged in the bottom plate, the bottom of the notch is provided with the buffer block, the side surface of the buffer block is provided with a row of triangle teeth, a first fixed column is arranged on the bottom plate, a pawl is hinged on the bottom plate through the first fixed column, a torsion spring is arranged between the first fixed column and the pawl, the pawl is biased to the anticlockwise direction by the torsion spring, a bayonet with a rightward opening and a stop groove are arranged on the pawl, the stop groove is positioned above the bayonet, a stop block matched with the stop groove is hinged on the bottom plate on the right of the pawl through a second fixed column, the upper end of the stop hook is connected with a pulling mechanism, a tension spring is connected between the upper end of the stop hook and the upper end of the pawl, and a limit column is arranged on the bottom plate on the left side of the pawl.

Further, the buffer block is a rubber block.

Compared with the prior art, the utility model has positive and obvious effects. According to the utility model, the wear caused by the instant impact of the lock catch on the buffer block is reduced by adopting the triangular teeth on the contact surface of the buffer block and the lock catch, so that the lock catch and the buffer block form multi-point contact, the buffer effect is effectively realized in long-term use, the wear surface can be compensated, the opening and closing of the lock is converted from rigidity to flexibility, and the use adaptability is greatly improved.

Drawings

FIG. 1 is a schematic view of a removable bottom of a vehicle seat back lock of the present utility model that reduces bumper wear.

FIG. 2 is a schematic view of an inclusion lock bottom of a vehicle seat back lock that reduces bumper wear in accordance with the present utility model.

Detailed Description

The present utility model is further described below with reference to the drawings and examples, but the present utility model is not limited to the examples, and all the similar structures and similar variations using the present utility model should be included in the protection scope of the present utility model. The use of the directions of up, down, front, back, left, right, etc. in the present utility model is only for convenience of description, and is not a limitation of the technical scheme of the present utility model.

As shown in fig. 1 and 2, the automobile seat backrest lock capable of reducing abrasion of the buffer block comprises a backrest lock body, wherein the backrest lock body comprises a bottom plate 1, a notch 2 with a downward opening is arranged in the bottom plate 1, a buffer block 12 is arranged at the bottom of the notch 2, a row of triangular teeth 13 is arranged on the side surface of the buffer block 12, a first fixed column is arranged on the bottom plate 1, a pawl 4 is hinged on the bottom plate 1 through the first fixed column, a torsion spring 3 is arranged between the first fixed column and the pawl 4, the pawl 4 is biased in the anticlockwise direction by the torsion spring 3, a bayonet 5 with the rightward opening and a stop groove 6 are arranged on the pawl 4, the stop groove 6 is positioned above the bayonet 5, a stop block 8 matched with the stop groove 6 is arranged on the bottom plate 1 at the right of the pawl 4 through a second fixed column in a hinged mode, a pulling mechanism 9 is connected to the upper end of the stop hook 7, a limit column 11 is arranged on the bottom plate 1 at the left side of the pawl 4.

Further, the buffer block 12 is a rubber block.

Specifically, the backrest lock body, the buffer block 12, the triangular teeth 13, the pawl 4, the torsion spring 3, the stop hook 7, the stop block 8, the pulling mechanism 9, the tension spring 10, and the like in this embodiment all adopt the known schemes in the prior art, and those skilled in the art will understand that the description is omitted herein.

The working principle of the embodiment is as follows:

the working principle of the embodiment is as follows: the seat back of the car is connected with a latch 14. In the initial state, the backrest is in a 0-degree state, at the moment, the lock catch 14 is not clamped into the backrest lock, when the backrest angle is required to be adjusted (the backrest is erected to 90 degrees), the stop hook 7 is pulled by the pulling mechanism 9, the stop hook 7 rotates clockwise, the stop block 8 is separated from the stop groove 6, meanwhile, the stop hook 7 drives the pawl 4 to rotate clockwise against the elastic force of the torsion spring 3 through the tension spring 10, the pawl 4 is unlocked, then the backrest angle is adjusted, the lock catch 14 is clamped into the notch 2, the pulling mechanism 9 is released, the pawl 4 rotates anticlockwise to return by virtue of the elastic force of the torsion spring, the stop block 8 is driven to enter the stop groove 6 through the tension spring 10, the pawl 4 and the lock catch 14 are locked, and the backrest angle is fixed. And then, when the angle of the backrest is required to be adjusted, the unlocking action is repeated, the pawl 4 is unlocked, the lock catch 14 is separated from the notch 2, and the backrest is restored to the 0-degree state.

According to the utility model, the wear caused by the instant impact of the lock catch 14 on the buffer block 12 is reduced by adopting the triangular teeth 13 on the contact surface of the buffer block 12 and the lock catch 14, so that the lock catch 14 and the buffer block 12 form multi-point contact, the buffer effect is effectively realized in long-term use, the wear surface can be compensated, the lock opening and closing are converted from rigidity to flexibility, and the use adaptability is greatly improved.

Claims

1. The utility model provides a can reduce car seat back lock of buffer block wearing and tearing, includes back lock body, its characterized in that: the backrest lock body comprises a bottom plate (1), a notch (2) with a downward opening is arranged in the bottom plate (1), a buffer block (12) is arranged at the bottom of the notch (2), a row of triangular teeth (13) are arranged on the side face of the buffer block (12), a first fixing column is arranged on the bottom plate (1), a pawl (4) is hinged to the bottom plate (1) through the first fixing column, a torsion spring (3) is arranged between the first fixing column and the pawl (4), the pawl (4) is biased in the anticlockwise direction by the torsion spring (3), a bayonet (5) with a rightward opening and a stop groove (6) are arranged on the pawl (4), the stop groove (6) is located above the bayonet (5), a stop hook (7) is hinged to the right of the pawl (4) through a second fixing column on the bottom plate (1), a stop block (8) matched with the stop groove (6) is arranged on the left side of the stop hook (7), a pulling mechanism (9) is connected to the upper end of the stop hook (7), a tension spring (10) is connected between the upper end of the stop hook (7) and the upper end of the pawl (4), and the left side of the bottom plate (4) is provided with a stop post (11).

2. A car seat back lock capable of reducing buffer block wear as in claim 1, wherein: the buffer block (12) is a rubber block.