The invention discloses a pneumatic control valve for an air pipe of a pneumatic balance crane, and relates to the field of pneumatic balance crane control, the pneumatic control valve comprises an anti-falling valve and a balance valve which are arranged at a working port at the side end of the pneumatic balance crane, the anti-falling valve is arranged on the side surface of the balance valve and is connected with a pneumatic loop of the working port of the pneumatic balance crane; the anti-falling valve comprises a valve body, a cylindrical mounting groove is formed in one side in the valve body, a plug is inserted into the bottom end of the cylindrical mounting groove, and a siphon air channel, a working air channel and an air inlet channel are arranged in the valve body; the valve rod is movably installed in the cylindrical installation groove in one side in the valve body, the periphery of the valve rod is sleeved with a valve element, and the outer wall of the valve element is in sliding connection with the inner wall of the cylindrical installation groove; the sealing plug is fixedly installed at the bottom end of the valve element and used for maintaining the sealing performance of the joint of the bottom end of the valve element and the inner wall of the cylindrical installation groove. The pneumatic control valve for the pneumatic balance lifting air pipe can prevent a lifted object from suddenly falling due to sudden burst of the air pipe, and reduces potential safety hazards.

    本发明公开了一种用于气动平衡吊气管的气控阀,涉及气动平衡吊控制领域,该气控阀包括安装于气动平衡吊侧端工作口处的防坠落阀和平衡阀,防坠落阀安装于平衡阀的侧面,且与气动平衡吊的工作口的气动回路相连,防坠落阀包括:阀体,阀体内一侧开设有柱形安装槽,且柱形安装槽底端插装有堵头,阀体内设置有虹吸气道、工作气道和进气道;阀杆,阀杆活动安装于阀体内一侧的柱形安装槽内,且阀杆的外围套装有阀芯,阀芯的外壁与柱形安装槽的内壁滑动连接;密封塞,密封塞固定安装于阀芯的底端,用于维持阀芯底端与柱形安装槽内壁连接处的密封性;本发明一种用于气动平衡吊气管的气控阀,可以阻止气管突然爆裂而产生的被吊物突然坠落,减少安全隐患。


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    Title :

    Pneumatic control valve for pneumatic balance crane air pipe


    Additional title:

    一种用于气动平衡吊气管的气控阀


    Contributors:
    WU ZHANG (author)

    Publication date :

    2023-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66D Haspeln , CAPSTANS



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