The invention relates to a plug pin device, a frame and a crane. The pin inserting and pulling device comprises a first annular piece and a second annular piece, the second annular piece is arranged on the inner side of the first annular piece; the at least two plug connectors are arranged in the circumferential direction of the second annular piece at intervals, and the at least two plug connectors are configured to stretch out in the radial direction of the second annular piece at the same time so as to connect the second annular piece and the first annular piece, or retract in the radial direction at the same time so as to release the connection between the second annular piece and the first annular piece; and the transmission assembly is connected with the at least two plug connectors, and the transmission assembly is configured to move in the axial direction of the second annular piece so as to drive the at least two plug connectors to stretch out in the radial direction at the same time or retract in the radial direction at the same time. The pin plugging and unplugging device can realize synchronous plugging and unplugging actions of a plurality of plug connectors, and is simple in structure, low in control difficulty, convenient to operate and high in practicability and economical efficiency.

    本公开涉及一种插拔销装置、车架及起重机。其中,插拔销装置包括:第一环形件;第二环形件,设于所述第一环形件的内侧;至少两个插接件,沿所述第二环形件的周向间隔设置,所述至少两个插接件被配置为同时沿所述第二环形件的径向伸出,以连接所述第二环形件和所述第一环形件,或同时沿所述径向缩回,以解除所述第二环形件与所述第一环形件的连接;以及传动组件,分别与所述至少两个插接件连接,所述传动组件被配置为沿所述第二环形件的轴向运动,以驱动所述至少两个插接件同时沿所述径向伸出,或同时沿所述径向缩回。该插拔销装置可实现多个插接件的同步插拔动作,结构简单,控制难度小,便于操作,实用性及经济性高。


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    Title :

    Pin inserting and pulling device, frame and crane


    Additional title:

    插拔销装置、车架及起重机


    Contributors:
    SHANG JUNHUI (author) / MENG JINJUN (author) / ZHU XIANGYANG (author)

    Publication date :

    2023-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B62D MOTOR VEHICLES , Motorfahrzeuge / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



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