The invention discloses a pumice stone inspection crowbar with the adjustable length. The pumice stone inspection crowbar comprises a main steel pipe, a first auxiliary steel pipe and a second auxiliary steel pipe, one end of the main steel pipe is in threaded connection with the first auxiliary steel pipe, the other end of the main steel pipe is rotationally connected with a casing, the casing isin threaded connection with the second auxiliary steel pipe, a handle is welded to one end of the first auxiliary steel pipe, and a connector is welded to one end of the second auxiliary steel pipe.The length of the pumice stone inspection crowbar can be changed by arranging the main steel pipe and the second auxiliary steel pipe, the problem that pumice detection prying is difficult due to different heights of roadway roofs and over-short or over-long inappropriate pumice stone crowbars is solved, in addition, a protruding block, a groove and the casing are arranged, the protruding block isinserted into the groove in the using process, the groove plays a role in limiting the protruding block, therefore, the second auxiliary steel pipe is prevented from being loosened from the main steel pipe in the using process, and the effect of further strengthening connection between the main steel pipe and the second auxiliary steel pipe is achieved.

    本发明公开了一种可调节长度的浮石检撬棍,包括主钢管、第一副钢管以及第二副钢管,所述主钢管的一端螺纹连接有第一副钢管,所述主钢管的另一端转动连接有套管,所述套管与所述第二副钢管螺纹连接,所述第一副钢管的一端焊接有把手,所述第二副钢管的一端焊接有连接头;本发明通过设有主钢管和第二副钢管,能够改变浮石检撬棍的长度,解决了因巷道顶板高低不同,浮石撬棍过短或过长不合适,而造成浮石检撬困难的情况,另外,通过设有凸块、凹槽和套管,在使用时,将凸块插进凹槽的内部,凹槽对凸块起到限位的作用,从而能够防止在使用时,第二副钢管从主钢管上松开,起到进一步加强主钢管与第二副钢管之间连接的作用。


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    Titel :

    Pumice stone inspection crowbar with adjustable length


    Weitere Titelangaben:

    一种可调节长度的浮石检撬棍


    Beteiligte:
    ZHOU QINGGONG (Autor:in) / ZHENG WEI (Autor:in) / ZONG XIANGUO (Autor:in)

    Erscheinungsdatum :

    2020-12-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    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



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