Tow hook installation structure

Abstract

The invention provides a tow hook installation structure, which comprises a through hole formed at the bottom of the groove of the front anti-collision beam for the tow bar to pass through, a nut seat is arranged behind the through hole, and a threaded section of the tow bar in the vehicle length direction is provided. An expansion unit is arranged immediately in front of the unit. After the threaded section of the trailer rod is screwed into the nut seat, the rear end of the expansion unit and the nut seat are squeezed to drive the front end of the expansion unit to open, and the front end of the expansion unit is opened. The bottom of the groove constitutes a limit fit for restricting the forward displacement of the tow bar relative to the front crash beam. The common threaded pipe installation structure is cancelled, so as to prevent the excessively long rigid threaded pipe structure from occupying the compression space of the energy-absorbing box, and at the same time, a nut seat is reduced on the basis of the solution of the applicant's previous application, which makes the trailer When the hook is installed, only one nut seat is required to avoid mutual interference when multiple nut seats are installed together.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a tow hook installation structure. Background technique [0002] The tow hook is the trailer and towing device of the car. Many brands of cars have a tow hook when they leave the factory. The car tow hook has become a must-have part of the car. [0003] The applicant's prior application publication number is CN110962513A, which discloses a trailer coupler nut box, which cancels the common nut tube structure by setting the front and rear two nut seats, so as to avoid the threaded tube arranged in front of the energy absorbing box. Occupying the compression space of the energy-absorbing box ensures that the energy-absorbing box can fully compress and absorb energy when the vehicle is hit. Yet in this application, there are front and rear nut seats, which need to be threaded with the front and rear two nut seats when screwed into the tow hook. When the tow hook is screwed into the front n...

AI Technical Summary

Problems solved by technology

Yet in this application, there are front and rear nut seats, which need to be threaded with the front and rear two nut seats when screwed into the tow hook. When the tow hook is screwed into the front nut seat, it continues to screw forward. When the threaded end of the hook reaches the rear nut seat, it is easy to produce a position deviation. At this time, idle rotation will occur on the rear nut seat. During the rotation of the tow hook, the tow hook extends into the front nut seat and its end fails to rotate in time. Insert the rear nut seat, so that the end of the tow hook will press against the rear nut seat. It is necessary to repeatedly unscrew the tow hook and screw it in to align with the rear nut seat. When the rear nut seat is pressed, the position of the rear nut seat will be shifted, which will further affect the screwing in of the tow hook

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