The invention provides a lock pin device for preventing a horizontal supporting leg of engineering machinery from extending outwards. The device comprises a locking plate and a lock pin assembly; thelocking plate is fixedly connected to a movable supporting leg box; a locking clamping groove is formed in the end face of the side, away from the movable supporting leg box, of the locking plate; anopening is formed in the far end face of a sleeve of the lock pin assembly; the sleeve is fixed on a fixed supporting leg box; the near end of a pin shaft stretches into the sleeve; the far end of thepin shaft penetrates through the sleeve and the fixed supporting leg box and stretches out towards the direction of the locking plate; a baffle ring extends in the middle of the pin shaft; a spring sleeves the outer wall of the pin shaft in the sleeve; two ends of the spring abut against the baffle ring and the inner wall of the sleeve respectively; the locking plate moves along with the movablesupporting leg box; and the moving track of the locking clamping groove passes through the far end of the pin shaft. The device has the advantages that a user does not need to repeatedly insert and pull out a horizontal supporting leg lock pin; safety accidents caused by forgetting to insert and pull out the pin are avoided; installation is flexible, and the lock pin device can be installed at anyproper position of a movable supporting leg; and a working device is very simple, cost is low and maintenance is convenient.

    本发明给出了一种防止工程机械水平支腿外伸的锁销装置;包括锁止板和锁销组件;锁止板固定连接在固定在活动支腿箱上,锁止板远离活动支腿箱一侧的端面上开有锁止卡槽;锁销组件的套筒远端面设有开口,套筒固定在固定支腿箱上,销轴近端伸入套筒内,销轴远端穿过套筒和固定支腿箱向锁止板方向伸出,销轴中部延伸有挡环,弹簧套装在处于套筒内的销轴外壁上,弹簧两端分别抵靠在挡环和套筒内壁上;锁止板跟随活动支腿箱运动,锁止卡槽的移动轨迹经过销轴远端。优点为:用户不需要再反复插、拔水平支腿锁销;更不会因忘记插、拔销而导致安全事故;安装灵活,本锁销装置可以在活动支腿任何合适位置安装;工作装置非常简单,成本低廉,维修方便。


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    Title :

    Lock pin device for preventing horizontal supporting leg of engineering machinery from extending outwards


    Additional title:

    防止工程机械水平支腿外伸的锁销装置


    Contributors:
    XU LI (author) / ZHANG SHENGNAN (author) / LI WENLONG (author)

    Publication date :

    2020-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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