The invention discloses a structure-improved electric hydraulic device of a jack and belongs to the technical field of jacks. Which comprises a motor, an oil pump, a valve body and an oil cylinder, and is characterized by further comprising an oil cylinder column retraction control mechanism, and the oil cylinder column retraction control mechanism is arranged on the valve body and communicated with the oil cylinder through an oil duct in the valve body; the motor is in transmission connection with the oil pump, the oil pump and the motor are arranged on the left side of the valve body in a horizontal state, the oil cylinder is arranged on the right side or the left side of the valve body in a horizontal state, and the oil pump is communicated with the oil cylinder through an oil channel formed in the valve body. The device has the advantages that the load can be lowered as long as the oil cylinder column retraction control mechanism is electrified, so that the condition that retraction of the oil cylinder column is controlled by reverse working of a motor can be avoided; the oil duct structure in the valve body is obviously simplified, the machining difficulty of the valve body is reduced, the machining efficiency is improved, the machining cost is saved, and action noise and part abrasion are reduced.

    一种结构改进的千斤顶的电动液压装置,属于千斤顶技术领域。包括电机、油泵、阀体和油缸,特点是:还包括有一油缸柱缩回控制机构,该油缸柱缩回控制机构设置在所述阀体上并且通过阀体内的油道与所述油缸相通;所述电机与所述油泵传动连接并且由油泵连同电机以卧置状态同设在所述阀体的左侧,而所述油缸同样以卧置状态设置在阀体的右侧或左侧,所述油泵通过开设于阀体内的油道与所述油缸相通。优点:只要使油缸柱缩回控制机构得电,便可使负载下降,从而能摆脱油缸柱的缩回受电机的反向工作控制的情形;显著简化阀体内的油道结构、降低对阀体的加工难度、提高加工效率并且节省加工成本以及有利于减小动作噪声以及减轻部件磨损。


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    Title :

    Electric hydraulic device of jack with improved structure


    Additional title:

    结构改进的千斤顶的电动液压装置


    Contributors:
    SHEN YI (author) / WANG JINGFANG (author) / SHI XIAOMING (author)

    Publication date :

    2025-04-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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