According to the present invention, a potable hydraulic jack comprises: a base unit having a hydraulic cylinder; a hydraulic pump installed in the base unit to operate the hydraulic cylinder; a driving motor to operate the hydraulic pump; and a power supply unit, which operates the driving motor and the hydraulic pump, supplying power. The hydraulic cylinder includes a hydraulic cylinder main unit, and a piston rod installed to be inserted into and withdrawn from the hydraulic cylinder main unit, and lifted/lowered by a fluid compressively transferred by the hydraulic pump. One or more auxiliary hydraulic cylinders to increase a stroke distance are installed in the piston rod. According to the present invention, a separate auxiliary hydraulic cylinder is installed in the inside of the hydraulic cylinder, so an enough stroke distance can be ensured. Moreover, as the piston rod and the auxiliary piston rod forming the auxiliary hydraulic cylinder are inserted into the inside of the hydraulic cylinder, a unit stroke distance of the piston rod and an auxiliary piston rod gets shorter, so miniaturization is realized.

    본 발명의 휴대용 유압잭은 유압실린더가 설치된 베이스부와, 베이스부에 설치되어 유압실린더를 구동시키기 위한 유압펌프와, 유압펌프를 구동시키기 위한 구동모터와, 구동모터 및 상기 유압펌프를 구동시키기 위한 것으로 전원을 공급하는 전원공급부를 구비하고, 유압실린더는 유압실린더 본체와 상기 유압실린더 본체에 인입 및 인출가능하게 설치되고 상기 유압펌프에 의해 압송되는 유체에 의해 승강되는 피스톤로드를 구비하고, 피스톤로드에 행정거리를 늘리기 위한 적어도 하나 이상의 보조유압실린더를 구비한 것을 특징으로 한다. 본 발명의 휴대용 유압잭은 유압실린더 내부에 별도의 보조유압실린더가 설치되어 충분한 행정거리 확보가 가능하며, 보조유압실린더를 이루는 피스톤로드 및 보조피스톤로드가 유압실린더 내부로 삽입되면서 피스톤로드 및 보조피스톤로드의 단위행정거리가 짧아져 소형화가 가능하다는 장점이 있다.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    POTABLE HYDRAULIC JACKING DEVICE


    Weitere Titelangaben:

    휴대용 유압잭


    Beteiligte:
    CHA YONG HOON (Autor:in) / SUNG BAEK SUB (Autor:in)

    Erscheinungsdatum :

    2016-08-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    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



    Hydraulic jacking device

    LI YONGMING / WANG HUAIRUI / LUO BIN et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Dustproof hydraulic jacking device

    CHEN YU / ZHANG JUNHUA / ZHAO YANFANG et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Hydraulic jacking cross beam device

    SHAN SHUANGBO / CHENG JIANTANG / YANG JIANFENG et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Hydraulic jacking system

    DUAN MINGZHI / ZHANG YONG / HU MIN et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Hydraulic jacking column

    CHEN YE | Europäisches Patentamt | 2020

    Freier Zugriff