The dumper rear tail door locking device comprises a shell, one side wall of the shell is fixed to a dumper frame, the left side and the right side of the shell are open, and the interior of the shell is hollow; the rotary fixing seat comprises a shaft and a pull ring fixed at one end of the shaft, the shaft penetrates through the two side walls of the shell and can rotate on the shell, and a through hole is formed in the shaft; one end of the screw penetrates through the through hole in the shaft and is fixed through limiting nuts, the limiting nuts comprise the first limiting nut located on the left side of the through hole and the second limiting nut located on the right side of the through hole, and the other end of the screw is connected with the container through a tail hook assembly; when the container is in a completely falling state or a semi-lifting state, the first limiting nut is in contact and fixed with the left side of the through hole; when the container is in a completely-lifted state, the second limiting nut makes contact with and is fixed to the right side of the through hole. The problem of breakage of the iron chain can be effectively solved, safety accidents caused by rapid descending of a container due to sudden failure of the lifting oil cylinder are prevented, and the whole vehicle backward turning accident caused by excessive lifting is avoided.
本发明公开一种自卸车后尾门锁紧装置及自卸车,包括:壳体,一侧壁固定在车架上,壳体的左右侧为开口式,内部中空;旋转固定座,包括轴、固定在轴一端的拉环,轴穿过壳体的两个侧壁并能在壳体上旋转,轴上开有通孔;螺杆,一端穿过轴上的通孔并通过限位螺母固定,限位螺母包括位于通孔左侧的第一限位螺母和位于通孔右侧的第二限位螺母,螺杆的另一端通过尾钩组件与货箱连接;当货箱处于完全落下状态或半举升状态时,第一限位螺母与通孔的左侧接触固定;当货箱处于完全举起状态时,第二限位螺母与通孔的右侧接触固定。本发明可以有效避免铁链断裂的问题,防止举升油缸突发故障导致货箱急速下降导致的安全事故,避免举升过头导致的整车后翻事故。
Dumper rear tail door locking device and dumper
一种自卸车后尾门锁紧装置及自卸车
2025-02-11
Patent
Electronic Resource
Chinese
IPC: | B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS |
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