The invention discloses a retractable tractor box step device. The vehicle ladder comprises a fixing frame, a rotating shaft, a locking block, a vehicle ladder main body, a locking hole, a rotating head, a groove, a stop block and a tractor main body, wherein a fixed frame is mounted at one end of the tractor main body; a rotating head is mounted on the fixed frame through a rotating shaft; a vehicle ladder main body is mounted at one end of the rotating head; a lock hole is formed in one end of the rotating head; a locking block is welded to one end of the fixing frame. The locking block is matched with the locking hole; protruding blocks are evenly installed at one end of the surface of the tractor body. A stop block is welded to the middle of the surface of the fixing frame. According to the vehicle ladder, after the vehicle ladder main body is turned upwards to the limit position, the hand is loosened, and the gravity of the vehicle ladder main body is downward, so that the lock block is automatically clamped into the lock hole, self-locking is completed while the vehicle ladder main body is retracted, and dangerous accidents caused by swinging generated by vibration of a vehicle body are avoided.
本发明公开了一种可收放的拖拉机车梯装置,包括固定架、转动轴、锁块、车梯主体、锁孔、转动头、凹槽、挡块和拖拉机主体,所述拖拉机主体的一端安装有固定架,所述固定架通过转动轴安装有转动头,所述转动头一端安装有车梯主体,所述转动头一端开设有锁孔,所述固定架一端焊接有锁块,且锁块与锁孔相配合,所述拖拉机主体表面一端均匀安装有凸块,所述固定架表面中间焊接有挡块,所述转动头一端位于锁孔一侧开设有凹槽,所述凹槽与锁块相配合,本发明,把车梯主体往上翻至极限位置后再松手,车梯主体重力向下,使得锁块自动卡入锁孔,收回车梯主体的同时也完成了自锁,不因车身振动产生摇摆而发生危险事故。
Retractable tractor box step device
一种可收放的拖拉机车梯装置
14.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |