Self-locking rope tow hook device

Abstract

The invention discloses a self-locking rope tow hook device and belongs to the technical field of trailer equipment. The self-locking rope tow hook device comprises a rotating wheel and a supporting frame; a self-locking device is connected to the supporting frame; and one end of a steel wire rope is wound on the rotating wheel after penetrating through the self-locking device. The self-locking rope tow hook device is characterized in that the self-locking device comprises a U-shaped fixed plate and a rolling wheel; the U-shaped fixed plate comprises an upper side plate and a lower side plate;a pair of L-shaped groove holes are formed in the same positions of the side plates; a wheel axle is arranged at the axis of the rolling wheel; the two ends of the wheel axle and the L-shaped grooveholes form a sliding fit structure; included angles between the length directions of the L-shaped groove holes and the U-shaped groove bottom of the U-shaped fixed plate are acute angles; wheel teethare arranged on the rolling wheels; and minimum clearances between the wheel teeth of the rolling wheel and the U-shaped groove bottom are less than the diameter of the steel wire rope. Functions thatthe length of a tow rope is adjustable, the rope can be self-locked and so on are realized.

Description

technical field [0001] The invention belongs to the field of trailer equipment, in particular to a self-locking rope trailer hook device. Background technique [0002] Since the birth of trucks, tow hooks have become an essential part of trucks. Truck tow hooks can be divided into front tow hooks and rear tow hooks according to their positions. At present, the commonly used tow hooks on the market are roughly divided into two structures: one is the hook and ring type, and the other is the assembled type of threaded pipe and tow ring. It is an essential tool for the car to be towed by other vehicles or other vehicles are trapped and needs to be towed by the car. Some other special vehicles are trapped and need to be towed by the vehicle. Due to the special task of some special vehicles, the towing device only involves the rear tow hook when designing. Many passenger cars and pickups have canceled the rear tow hook, and the tow hook has become an optional part. [0003] Whe...

AI Technical Summary

Problems solved by technology

[0003] When the vehicle breaks down or gets stuck in the mud, it is necessary to tie the tow rope. The towing vehicle has no rear tow hook or the towed vehicle has no front tow hook, so the tow rope has to be tied to the main beam or suspension of the vehicle. Because the rope is repeatedly impacted by the traction force, it is easy to cause a dead knot on the tow rope. It is quite troublesome and difficult to remove the tow rope after the towed vehicle is out of danger. The tow rope cannot be removed and has to be cut, resulting in damage to the tow rope

[0004] Moreover, during the vehicle towing process, due to the different slackness of the tow rope ropes of the two vehicles, the tow rope is repeatedly impacted by the traction force, and the instantaneous failure stress increases to 2-3 times the weight of the towed vehicle (the weight does not exceed 3500kg. ), it is easy to cause the tow rope to break and bring many difficulties

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