CN211139247U

CN211139247U - Automobile safety belt pretension lock shock-absorbing connector

Info

Publication number: CN211139247U
Application number: CN201921411787.5U
Authority: CN
Inventors: 徐霄飞
Original assignee: Shanghai Trw Automotive Safety Systems Co ltd
Current assignee: Shanghai Trw Automotive Safety Systems Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-07-31
Anticipated expiration: 2029-08-28

Abstract

The utility model discloses a car blet pretension lock shock attenuation connector, including plastic protection shell, a plurality of metal PIN needles, damping device and pencil connecting portion, be equipped with the PIN needle mounting hole with these metal PIN needles one-to-one on the plastic protection shell, metal PIN needle is pegged graft in PIN needle mounting hole with head towards the plastic protection shell outside, root towards the direction of plastic protection shell inboard, the bottom of plastic protection shell is equipped with chute formula barb fastening groove, sliding fit with damping device on the chute formula barb fastening groove, the plastic protection shell is equipped with the pencil connecting portion; the plastic protective shell is connected with the joint of the automobile seat, the head parts of the metal PIN needles are connected with the metal copper sheet on the automobile seat in a fastening mode, the inserting groove in the top of the plastic protective shell is fastened with the spring bolt of the pre-tensioning lock in an inner buckling mode, and the damping device is fixed on the automobile seat.

Description

Automobile safety belt pretension lock shock-absorbing connector

Technical Field

The utility model relates to a car blet pretension lock shock attenuation technical field especially relates to a car blet pretension lock (BPT) shock attenuation connector.

Background

At present, household automobiles begin to use automobile safety belts for pretensioning, and the pretensioning function is characterized in that when a passenger does not move forward at the moment of a collision accident of the automobiles, the pretensioning function firstly tensions the woven belts, the passenger is immediately and tightly bound on the seat, and then the woven belts are locked to prevent the body of the passenger from tilting forward, so that the safety of the passenger is effectively protected. The pretensioning lock, which is the main function of the pretensioned safety belt, can also fulfill this function in addition to the retractor, in order to increase the restraint force on the occupant in the region of 0.1s when there is a rapid change in vehicle speed, and the control device and pretensioning device for fulfilling this function require a connection to the vehicle seat. Therefore, the safety and reliability of the connector are important.

SUMMERY OF THE UTILITY MODEL

In order to ensure objective adverse factors caused by inevitable vibration in the long-term automobile driving process, the automobile safety belt pretension lock damping connector is provided, and the vibration-proof falling damping device is additionally arranged at the position of the connector, so that the product is more reliable.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the utility model provides a car blet pretension lock shock attenuation connector, its characteristics are that, it includes plastic protection shell, a plurality of metal PIN needles, damping device and pencil connecting portion, be equipped with the PIN needle mounting hole with these metal PIN needles one-to-one on the plastic protection shell, metal PIN needle is pegged graft in PIN needle mounting hole with head towards the plastic protection shell outside, root towards the direction of plastic protection shell inboard, the bottom of plastic protection shell is equipped with chute formula barb fastening groove, the last damping device that has been furnished with of chute formula barb fastening groove, the plastic protection shell is equipped with the pencil connecting portion;

the plastic protective shell is connected with the joint of the automobile seat, the head parts of the metal PIN needles are connected with the metal copper sheet on the automobile seat in a fastening mode, the inserting groove in the top of the plastic protective shell is fastened with the spring bolt of the pre-tensioning lock in an inner buckling mode, and the damping device is fixed on the automobile seat.

Preferably, slotted barb fastening groove includes the spout, the both sides wall top inward fixation of spout has the barb, damping device includes the slider, the top of slider is equipped with the buckle with barb looks lock joint, the bottom of slider is fixed with the cylinder through the stopper, the outer circumference of cylinder is established by top to bottom cover in proper order and is fixed with the elasticity rand, the elasticity rand lock joint is in the mounting hole on car seat, the bottom of slider still is fixed with the reference column, the reference column is located in the locating hole on car seat.

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

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in:

the utility model has the advantages of prevent effectively that vibrations from droing, fastening nature is strong, prevent artifical dismantlement, durability is strong.

Drawings

Fig. 1 is a schematic structural view of a vehicle seat belt pretension lock shock-absorbing connector according to a preferred embodiment of the present invention.

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

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment provides a damping connector for a pretensioning lock of an automobile safety belt, which includes a plastic protective shell 1, a plurality of metal PIN 2, a damping device 3 and a harness connection portion 4, wherein PIN mounting holes corresponding to the metal PIN 2 are formed in the plastic protective shell 1 one by one, the metal PIN 2 is inserted into the PIN mounting holes in a direction that a head portion of the metal PIN faces the outside of the plastic protective shell 1 and a root portion of the metal PIN faces the inside of the plastic protective shell 1, an end face of the head portion of the metal PIN 2 is flush with the outer surface of the plastic protective shell 1, the root portion of the metal PIN abuts against 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 damping device 3 is slidably fitted on the sliding groove type barb fastening groove 5.

The plastic protective shell 1 is connected with a joint of the automobile seat, the heads of the metal PIN needles 2 are connected with a metal copper sheet on the automobile seat in a fastening mode, the inserting grooves in the top of the plastic protective shell 1 are fastened with the lock tongues of the pre-tensioning locks in an inner buckling mode, and the damping device 3 is fixed on the automobile seat.

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

Further, damping device 3 includes slider 31, the top of slider 31 is equipped with the buckle 32 of buckling mutually with the barb, the bottom of slider 31 is fixed with cylinder 34 through stopper 33, the outer circumference of cylinder 34 is fixed with elasticity rand 35 by top to bottom cover in proper order, elasticity rand 35 lock joint is in the mounting hole on the car seat, the bottom of slider 31 still is fixed with reference column 36, reference column 36 is located the locating hole on the car seat.

The plastic protective shell 1 is made of polyamide (PS66) 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 pretensioning lock (BPT) shock absorption connector is provided with a sliding groove type barb fastening groove at the connecting end of the connecting part of the shock absorption device, so that falling off and manual disassembly are effectively avoided and prevented.

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present 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 spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The shock absorption connector for the pre-tensioned lock of the automobile safety belt is characterized by comprising a plastic protective shell, a plurality of metal PIN needles, a shock absorption device and a wiring 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 metal PIN needles are inserted into the PIN needle mounting holes in a direction that the head parts of the metal PIN needles face the outer side of the plastic protective shell and the root parts of the metal PIN needles face the inner side of the plastic protective shell, a sliding groove type barb fastening groove is formed in the bottom of the plastic protective shell, the shock absorption device is matched with the sliding groove type barb fastening groove in a sliding mode;

2. The automotive seat belt pre-tensioning lock shock-absorbing connector as claimed in claim 1, wherein the sliding groove type barb fastening groove comprises a sliding groove, barbs are fixed inwards at the tops of two side walls of the sliding groove, the shock-absorbing 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 sequentially sleeved and fixed on the outer circumference of the cylinder from top to bottom, the elastic clamping ring is fastened in a mounting hole in an automotive seat, and a positioning column is further fixed at the bottom of the sliding block and positioned in a positioning hole in the automotive seat.

3. The automotive seatbelt pre-tension lock shock absorbing coupler of claim 1, wherein the metal PIN head portion has an end face flush with the outer surface of the plastic protective shell and a heel portion abutting against the inner surface of the plastic protective shell.