The invention provides a landing leg of a semitrailer, and relates to the technical field of semitrailers, the landing leg comprises a cylinder body, a piston rod, a hydraulic oil tank, a hydraulic oil pump, an electromagnetic valve and an anti-falling liquid tank, the anti-falling liquid tank is filled with non-Newtonian fluid, the anti-falling liquid tank is communicated with one of the spaces through a pipeline, and the space is filled with the non-Newtonian fluid. The hydraulic oil pump is communicated with the other space through a pipeline, and the other space is filled with hydraulic oil. When the electromagnetic valve breaks down and loses efficacy, the semitrailer has a sudden change trend of downward movement under the action of gravity, so that the pressure generated by the first piston block on the non-Newtonian fluid is suddenly changed, the first piston block is limited to rapidly move relative to the cylinder body by means of the fluid mechanical property of the non-Newtonian fluid, and the first piston block slowly and stably moves relative to the cylinder body; in the process that the semitrailer slowly descends, other supporting tools or locking pieces can be used for locking the height position of the semitrailer, and the technical problem that the semitrailer falls due to the fact that the locking pieces fail is solved.
本申请提供了一种半挂车的支腿,涉及半挂车技术领域,其包括缸体、活塞杆、液压油箱、液压油泵、电磁阀、还包括防坠落液箱,防坠落液箱内装有非牛顿流体,防坠落液箱通过管路与其中一个空间连通并在该空间内充满非牛顿流体,液压油泵通过管路与另一个空间连通并在该另一个空间内充满液压油。当电磁阀出现故障失效后,半挂车在重力作用下具有向下运动的骤变趋势,使第一活塞块对非牛顿流体产生的压力发生骤变,依靠非牛顿流体的流体力学性质限制第一活塞块相对缸体急速运动,而是相对缸体缓慢平稳的运动,在半挂车缓慢下降的过程中,可使用其他支撑工具或锁止件对半挂车的高度位置进行锁止,解决了半挂车因锁止件失效导致半挂车下坠的技术问题。
Supporting leg of semitrailer
一种半挂车的支腿
2023-04-25
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
Supporting framework of semitrailer tank body and liquid tank semitrailer
European Patent Office | 2025
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