The differential type spin lock device comprises a shell, a sleeve is fixed in the shell, a lifting rod is arranged in the sleeve, the top end of the lifting rod is rotationally connected with a bearing seat, a pair of limiting bosses are symmetrically arranged on the portions, on the upper side and the lower side of the bearing seat, of the lifting rod, and a pair of sliding blocks are symmetrically arranged on the outer wall of the bearing seat in a protruding mode; a plurality of low-position grooves and a plurality of high-position grooves are formed in the inner wall of the sleeve, the low-position grooves and the high-position grooves are annularly arranged at intervals one by one, the adjacent low-position grooves and high-position grooves are communicated through sliding grooves, the sliding blocks are in sliding connection with the high-position grooves, the low-position grooves and the sliding grooves, and the sliding blocks can slide into the low-position grooves or the high-position grooves along the sliding grooves. According to the spin lock device, through structural cooperation, a lock head part is omitted, the spin lock structure is simplified, rotation state switching is improved into high-low differential state switching, the reliability of spin lock operation is improved, the size of the spin lock is further compressed, and the spin lock device can be better adapted to various small lifting appliances with narrow installation spaces.
本申请公开了一种差分式旋锁装置,包括壳体,壳体内固定有套筒,套筒内设有升降杆,升降杆的顶端转动连接有轴承座,轴承座上下两侧的升降杆上对称设有一对限位凸台,轴承座的外壁上对称凸设有一对滑块,套筒的内壁上设有多个低位槽和多个高位槽,多个低位槽和多个高位槽呈环形一一间隔设置,相邻低位槽和高位槽之间通过滑槽连通,滑块与高位槽、低位槽及滑槽滑动连接,滑块可沿滑槽滑入低位槽或高位槽内。该旋锁装置通过结构配合,取消了锁头部分,简化了旋锁结构,将旋转状态切换改进为高低差分状态切换,增加了转锁运行的可靠性,并且进一步压缩了转锁的体积,使其可以更好的适配在各种安装空间狭小的小型吊具中。
Differential spin lock device
差分式旋锁装置
2023-03-07
Patent
Electronic Resource
Chinese