The invention provides a double-shuttle-shaped telescopic opening and closing device, and relates to the technical field of slings, the double-shuttle-shaped telescopic opening and closing device comprises a beam body, an upper box body and a support, the upper box body is arranged at the middle position above the beam body, a double-shuttle-shaped disc is rotatably arranged at the middle position in the upper box body, and concave positions and convex positions are arranged on the two sides of the double-shuttle-shaped disc; opening and closing of the lifting appliance are achieved through rapid opening and closing, the rotating lifting piece inclines towards one side by more than 90 degrees to drive the lifting shaft to rotate, the lifting shaft drives the ratchet wheel to rotate, the ratchet wheel rotates by more than 90 degrees, the upper ratchet and the lower ratchet cross the pawl and stop still, then the rotating lifting piece ascends and resets, the ratchet wheel rotates, and the pawl is driven by the ratchets to rotate along with the ratchet wheel. The pawl drives the double-shuttle-shaped disc to rotate, due to the fact that the thicknesses of concave positions and convex positions on the double-shuttle-shaped disc are different, the elastic rod assembly can stretch out and retract, then unlocking and limiting locking of the elastic rod assembly and a limiting plate of the support are achieved, and the design requirements for opening and closing of the lifting appliance are met.
本发明提供了一种双梭形伸缩式开闭装置,涉及吊索具技术领域,包括梁体、上箱体和支架,所述上箱体设在梁体上方的中间位置处,且上箱体内部的中间位置处转动设有双梭形圆盘,所述双梭形圆盘的两侧均设有凹位和凸位;本发明通过快速开闭实现吊具的打开与闭合,转动吊攀向一侧倾斜大于90°带动吊轴转动,吊轴带动棘轮转动,棘轮转动大于90°,上下一个棘齿越过棘爪,停止不动,接着转动吊攀上升复位,棘轮转动,通过棘齿带动棘爪跟随转动,棘爪带动双梭形圆盘旋转,由于双梭形圆盘上的凹位、凸位厚度不同,致使弹性杆组件能够出现伸出与缩回两种状态,进而做到了与支架的限位板解除锁定与限位锁定,满足吊具打开与闭合的设计要求。
Double-shuttle-shaped telescopic opening and closing device
一种双梭形伸缩式开闭装置
2025-03-14
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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