A trailer device with two-way buffer function

Abstract

The invention relates to a vehicle dragging device with a bidirectional buffer function, which effectively solves the problem of no buffer function in the existing vehicle dragging device. The vehicledragging deviceis characterized by comprising a box body, wherein a resetable rope winding wheel is arranged in the box body; piston cylinders are respectively arranged at the left side and right side of the box body; a first circular pipe is arranged in each piston cylinder; the part, in the piston cylinder, of each first circular pipe is sheathed with a piston which can be moved left and right;a first check valve is arranged at the outer end of each piston cylinder, and can only be used for air exhausting; a second check valve is arranged at the inner end of each piston cylinder, and can only used for air intake; a second piston pipe is arranged at one end, away from the box body, of each piston; a magnetic ball is fixed at the other end of each second circular pipe; a magnetic coat isarranged at the outer end of each magnetic ball, and the interior of each magnetic coat is fixed with a rope; the other end of the rope is connected with the rope winding wheel; a first press springis arranged at the part, in each second circular pipe, of the rope, and is used for resetting the rope towards the rope winding wheel. The vehicle dragging device has the advantages that the conception is novel, the structure is skillful, and the practicality is high.

Description

technical field [0001] The invention relates to the field of trailer equipment, in particular to a trailer device with two-way buffering function. Background technique [0002] Cars have become an indispensable means of transportation in modern people's lives, but in life, it is inevitable that cars will run out of oil, or break down and break down. For emergency rescue, there are many types of tow trucks. There are professional tow trucks, which lift the car as a whole and transport it away. This kind of tow truck requires professional tow truck personnel and professional tow truck equipment, and the cost of tow trucks is high. In the face of general minor faults In the case of breaking down, still use a tow rope or a tow bar to tow the vehicle. [0003] The tow rope has the problems of being light, cheap, long towing distance, and easy to carry and install. However, because the tow rope is in flexible contact with the vehicle, it is easy for the vehicle behind to rear-end...

AI Technical Summary

Problems solved by technology

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a trailer device with a two-way buffer function, which effectively solves the problem that the existing trailer device does not have a buffer function

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