The invention relates to a dumper carriage rear door locking mechanism which is characterized in that a rear door is arranged at the rear end of a carriage, the upper edge of a port of the rear end of the carriage is rotatably connected with the upper edge of the rear door, the rear door locking mechanism comprises two upper supports and two lower supports in one-to-one correspondence with the two upper supports, and lock hook rotating shafts are rotatably connected to the upper supports; a first telescopic rod is arranged between the front end of the lock hook and the lower support, a limiting concave ring is arranged at the end, away from the upper support, of the lock hook limiting block, two grooves are symmetrically formed in the outer edge of the limiting concave ring, the lock hook limiting block is rotationally sleeved with a positioning cylinder, two sliding rods are slidably connected to the positioning cylinder, and lock rods are fixed to the lower ends of the sliding rods. The first telescopic rod and the second telescopic rod are pushed to stretch out and draw back through oil pressure of hydraulic oil, the lock hook is prevented from swinging when the rear door is closed through the limiting effect of the lock rod, the first telescopic rod is prevented from being kept in the working state for a long time, the workload of the first telescopic rod is reduced, and meanwhile the safety of the locking mechanism is improved.
本发明涉及一种自卸车车厢后门锁止机构,车厢后端设置有后门,车厢后端端口上边缘与后门上边缘转动连接,后门锁止机构包括两个上支座、与两个上支座一一对应的两个下支座,上支座上转动连接有锁钩转轴,锁钩前端与下支座之间设置有第一伸缩杆,锁钩限位块背离上支座的一端设置有限位凹环,限位凹环外边缘对称设置有两个凹槽,锁钩限位块上转动套接有定位筒,定位筒上滑动连接有两根滑杆,滑杆下端固定有锁杆,本发明利用液压油的油压推动第一伸缩杆和第二伸缩杆伸缩,利用锁杆的限定作用,防止后门关闭时,锁钩摆动,避免第一伸缩杆长期保持工作状态,减小了第一伸缩杆的工作负担,同时提升了锁止机构的安全性。
Dumper carriage rear door locking mechanism
一种自卸车车厢后门锁止机构
2023-12-08
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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