The invention relates to an umbrella type ladder inner circle lifting appliance. The umbrella type ladder inner circle lifting appliance comprises clamping jaws 1 and a clamping jaw control part 2; the at least three strip-shaped clamping jaws 1 are located on the same horizontal plane of the lower end of the lifting appliance, and one end of each clamping jaw 1 is rotationally and fixedly connected with the lifting appliance; the clamping jaw control part 2 comprises a handle 21 and a moving device 22; one end of the handle 21 is rotationally and fixedly connected to the lifting appliance, the other end of the handle 21 is connected with one end of the moving device 22, and the other end of the moving device 22 is connected with the same position of each clamping jaw; and when the end, connected with the lifting appliance, of the handle 21 rotates, the other end of the handle 21 drives the moving device 22 to move, and the other end of each clamping jaw 1 moves upwards. The lifting appliance has the advantages of being simple in structure, convenient to use, stable in lifting, high in safety and the like.
本发明涉及一种伞式阶梯內圆吊具,包括:卡爪1及卡爪控制部件2;卡爪1为条形,数量为至少三个,各个卡爪1位于吊具的下端同一水平面上且一端与吊具转动固定连接;卡爪控制部件2包括把手21和移动装置22;把手21一端转动固定连接在吊具上,另一端与移动装置22的一端连接,移动装置22的另一端与各个卡爪的相同位置处均分别连接;把手21与吊具连接的一端转动时,另一端带动移动装置22产生位移,使各个卡爪1的另一端向上移动,具有结构简单、使用方便、吊运平稳及安全性高等优点。
Umbrella type ladder inner circle lifting appliance
一种伞式阶梯內圆吊具
2021-07-09
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
Unpowered inner supporting type lifting appliance and control method thereof
Europäisches Patentamt | 2023
|