CN110539718B

CN110539718B - Pre-tightening lock shock-absorbing connector for automobile safety belt

Info

Publication number: CN110539718B
Application number: CN201910802817.3A
Authority: CN
Inventors: 徐霄飞
Original assignee: Zf Automotive Passive Safety System Shanghai Co ltd
Current assignee: Zf Automotive Passive Safety System Shanghai Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2023-10-20
Anticipated expiration: 2039-08-28
Also published as: CN110539718A

Abstract

The invention discloses an automobile safety belt pre-tightening lock shock-absorbing connector, which comprises a plastic protective shell, a plurality of metal PIN needles, shock-absorbing devices and a wire harness connecting part, wherein PIN needle mounting holes which are in one-to-one correspondence with the metal PIN needles are formed in the plastic protective shell; the plastic protection shell is connected with the automobile seat connector, the metal PIN needle heads are connected with a metal copper sheet on the automobile seat in a fastening mode, the slot at the top of the plastic protection shell is fastened with the lock tongue of the pretension lock in an inner buckling mode, and the damping device is fixed on the automobile seat.

Description

Pre-tightening lock shock-absorbing connector for automobile safety belt

Technical Field

The invention relates to the technical field of automobile safety belt pretension lock shock absorption, in particular to an automobile safety belt pretension lock (BPT) shock absorption connector.

Background

The pre-tightening function of the automobile safety belt is widely used in the prior household automobile, and is characterized in that when an automobile collides, an occupant can first tighten the webbing when the occupant does not move forward, immediately bind the occupant on a seat, and then lock the webbing to prevent the body of the occupant from tilting forward, thereby effectively protecting the safety of the occupant. Besides the retractor, which plays a main role in the pretensioned safety belt, the pretensioned lock can also achieve this function, and when the vehicle speed changes sharply, the restraint force on the occupant can be enhanced by about 0.1s, and the control device and the pretensioning device for achieving this function need a connector with the vehicle seat. Therefore, the safety reliability of such connectors is particularly important.

Disclosure of Invention

In order to ensure objective adverse factors caused by unavoidable vibration in the long-term automobile driving process, the pre-tightening lock shock-absorbing connector of the automobile safety belt is provided, and a shock-absorbing device for preventing vibration and falling is additionally arranged at the connector position, so that the product is more reliable.

The invention solves the technical problems by the following technical proposal:

the invention provides a pre-tightening lock shock-absorbing connector of an automobile safety belt, which is characterized by comprising a plastic protective shell, a plurality of metal PIN needles, shock-absorbing devices and a wire harness connecting part, wherein the plastic protective shell is provided with PIN needle mounting holes corresponding to the metal PIN needles one by one, the metal PIN needles are inserted in the PIN needle mounting holes in the directions that the heads face the outer side of the plastic protective shell and the roots face the inner side of the plastic protective shell, the bottom of the plastic protective shell is provided with a sliding groove type barb fastening groove, the sliding groove type barb fastening groove is provided with the shock-absorbing devices in a sliding mode, and the plastic protective shell is provided with the wire harness connecting part;

the plastic protection shell is connected with the automobile seat connector, the metal PIN needle heads are connected with a metal copper sheet on the automobile seat in a fastening mode, the slot at the top of the plastic protection shell is fastened with the lock tongue of the pretension lock in an inner buckling mode, and the damping device is fixed on the automobile seat.

Preferably, the chute type barb fastening groove comprises a chute, barbs are fixed at the tops of two side walls of the chute inwards, the damping device comprises a sliding block, a buckle fastened with the barbs is arranged at the top of the sliding block, a cylinder is fixed at the bottom of the sliding block through a limiting block, an elastic clamping ring is sleeved and fixed on the outer circumference of the cylinder from the top to the bottom in sequence, the elastic clamping ring is fastened in a mounting hole on the automobile seat, a positioning column is further fixed at the bottom of the sliding block, and the positioning column is positioned in a positioning hole on the automobile seat.

Preferably, the end face of the metal PIN head is flush with the outer surface of the plastic protective shell, and the root is abutted to the inner surface of the plastic protective shell.

Preferably, the plastic protective shell is made of polyamide and nylon materials.

On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.

The invention has the positive progress effects that:

the invention has the advantages of effectively preventing vibration from falling off, having strong fastening performance, preventing manual disassembly, having strong durability and the like.

Drawings

Fig. 1 is a schematic structural view of a pre-tensioned lock damper connector for an automotive seat belt according to a preferred embodiment of the present invention.

Fig. 2 is a cross-sectional view of a car seat belt pretension lock shock absorbing connector of a preferred embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1, this embodiment provides a pre-tightening lock shock-absorbing connector for an automobile safety belt, which comprises a plastic protective shell 1, a plurality of metal PIN needles 2, a shock-absorbing device 3 and a wire harness connecting portion 4, PIN needle mounting holes corresponding to the metal PIN needles 2 one by one are formed in the plastic protective shell 1, the metal PIN needles 2 are inserted in the PIN needle mounting holes in the directions of the heads towards the outer side of the plastic protective shell 1 and the roots towards the inner side of the plastic protective shell 1, the end faces of the heads of the metal PIN needles 2 are flush with the outer surface of the plastic protective shell 1, the roots are abutted to the inner surface of the plastic protective shell 1, a sliding groove type barb fastening groove 5 is formed in the bottom of the plastic protective shell 1, the shock-absorbing device 3 is arranged on the sliding groove type barb fastening groove 5, and the wire harness connecting portion 4 is arranged on the plastic protective shell 1.

The plastic protection shell 1 is connected with the automobile seat joint, the heads of the metal PIN needles 2 are connected with a metal copper sheet on the automobile seat in a fastening mode, a slot at the top of the plastic protection shell 1 is fastened with a lock tongue of the pretension lock in an inner buckling mode, and the damping device 3 is fixed on the automobile seat.

Further, the chute type barb fastening groove 4 comprises a chute, and barbs are inwards fixed at the tops of two side walls of the chute.

Further, the damping device 3 includes a slider 31, the top of the slider 31 is provided with a buckle 32 fastened with the barb, the bottom of the slider 31 is fixed with a column 34 through a limiting block 33, an elastic collar 35 is sleeved and fixed on the outer circumference of the column 34 from top to bottom in sequence, the elastic collar 35 is fastened in a mounting hole on the automobile seat, a positioning column 36 is further fixed on the bottom of the slider 31, and the positioning column 36 is positioned in a positioning hole on the automobile seat.

The plastic protective housing 1 is made of polyamide (PS 66) and nylon 6/6 materials, has the characteristics of light weight, excellent crease resistance, good durability, heat resistance and the like, and meets the design requirements.

The plastic protective shell of the automobile pre-tightening lock (BPT) shock absorption connector and the connecting end of the shock absorption device connecting part are provided with the sliding groove type barb fastening groove, so that falling and manual disassembly are effectively avoided and prevented.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims

1. The utility model provides a car safety belt pretension lock shock attenuation connector, its characterized in that includes plastic protective housing, a plurality of metal PIN needle, damping device and pencil connecting portion, be equipped with the PIN needle mounting hole that corresponds with these metal PIN needles one by one on the plastic protective housing, the metal PIN needle is pegged graft in the PIN needle mounting hole with the head towards the outside of plastic protective housing, the root towards the direction of plastic protective housing inboard, the bottom of plastic protective housing is equipped with spout formula barb fastening groove, slide on spout formula barb fastening groove and be furnished with damping device, the plastic protective housing is equipped with pencil connecting portion;

the plastic protective shell is connected with the automobile seat connector, the metal PIN needle heads are connected with a metal copper sheet on the automobile seat in a fastening mode, the slot at the top of the plastic protective shell is fastened with the lock tongue of the pretensioned lock in an inner buckling mode, and the damping device is fixed on the automobile seat;

the sliding chute type barb fastening groove comprises a sliding chute, barbs are inwards fixed at the tops of two side walls of the sliding chute, the damping device comprises a sliding block, a buckle which is fastened with the barbs is arranged at the top of the sliding block, a column body is fixed at the bottom of the sliding block through a limiting block, an elastic clamping ring is sequentially sleeved and fixed on the outer circumference of the column body from top to bottom, the elastic clamping ring is fastened in a mounting hole on an automobile seat, a positioning column is further fixed at the bottom of the sliding block, and the positioning column is positioned in a positioning hole on the automobile seat;

the end face of the metal PIN needle part is flush with the outer surface of the plastic protective shell, and the root part is abutted against the inner surface of the plastic protective shell;

the plastic protective shell is made of polyamide and nylon materials.