The invention discloses a supporting leg telescopic structure and a crane. The supporting leg telescopic structure comprises a fixed supporting leg (10); the multi-stage telescopic supporting leg (20) is telescopically arranged in the fixed supporting leg (10), and the total length of the multi-stage telescopic supporting leg (20) in the telescopic direction is adjusted through stretching and retracting; wherein a lap joint block matching structure is arranged between every two adjacent stages of telescopic supporting legs in the multiple stages of telescopic supporting legs (20); the lap joint block matching structure comprises a first lap joint block set (50) located on the outer surface (2o) of a web of the telescopic supporting leg on the inner side of the adjacent-stage telescopic supporting legs and a second lap joint block set (60) located on the inner surface (2i) of a web of the telescopic supporting leg on the outer side of the adjacent-stage telescopic supporting legs. The first lap joint block set (50) and the second lap joint block set (60) are kept in lap joint fit at any position between the allowable maximum extending position and the set extending position of the inner side telescopic supporting leg relative to the outer side telescopic supporting leg.

    一种支腿伸缩结构及起重机,支腿伸缩结构包括:固定支腿(10);和多级伸缩支腿(20),可伸缩地设置在所述固定支腿(10)内,并通过伸缩调整在伸缩方向上的总长;其中,所述多级伸缩支腿(20)中相邻级伸缩支腿之间设有搭接块配合结构,所述搭接块配合结构包括位于所述相邻级伸缩支腿中内侧伸缩支腿的腹板外表面(2o)上的第一搭接块组(50)和位于所述相邻级伸缩支腿中外侧伸缩支腿的腹板内表面(2i)上的第二搭接块组(60),所述第一搭接块组(50)和所述第二搭接块组(60)在所述内侧伸缩支腿相对于所述外侧伸缩支腿的允许最大伸出位置和设定伸出位置之间任意位置保持搭接配合。


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    Title :

    Supporting leg telescopic structure and crane


    Additional title:

    支腿伸缩结构及起重机


    Contributors:
    JIA XIAOJIE (author) / JI GUANGKE (author) / LIU BAOLUAN (author) / XU YUXI (author) / CHENG JING'AI (author) / WANG ZHIMING (author)

    Publication date :

    2024-08-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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