The invention provides a trailer connecting device which comprises a ball neck member, a bent member, a transition member, and an assembly element. The bent member is used for maintaining the ball neck member, the transition member is connected with the bent member, the assembly element is connected with the transition member, the other side of the assembly element can be assembled at the tail end of an automobile body, and a shake-preventive locking device is arranged at a position where the assembly element is connected with the transition member, surrounds the outer surface of the position and is fixed on the assembly element by utilizing a fixing hole in the shake-preventive locking device; the ball neck member sequentially comprises a ball head, a neck portion, an annular boss and a threaded section from top to bottom, a dustproof cover is arranged on the surface of the ball head, one end of the dustproof cover is connectedly fixed through a clamping spring, and an annular groove for the clamping spring to be clamped in is formed in the peripheral wall of the annular boss. The trailer connecting device can effectively prevent shaking in the process of traveling, thereby having damping effect, the ball head is protected effectively, service life of each part of the connecting device is prolonged finally, and the trailer connecting device is suitable for various automobile models and high in universality.
Trailer connecting device
2015-05-20
Patent
Electronic Resource
English
IPC: | B60D Fahrzeugverbindungen , VEHICLE CONNECTIONS |