An electrical switch and a trigger assembly are arranged at the top of a shell, the trigger assembly comprises a telescopic electromagnet, a switch beating plate and a trigger plate, a telescopic rod penetrates through the switch beating plate and extends to one side of a contact of the electrical switch, and a limiting column is further arranged on the telescopic rod; the other end of the switch beating plate penetrates through the top of the shell, extends into the shell and is connected with a trigger plate, one end of the trigger plate is rotatably connected to the rotating rod, the other end of the trigger plate is provided with a trigger part, the throwing piece is provided with a protrusion, and the trigger plate is further connected with an auxiliary touch plate. One end of the auxiliary touch plate is connected to the trigger plate, and the other end extends between the telescopic rod and the contact of the electric appliance switch; after the electromagnet is electrified, the action of the telescopic rod triggers the switch beating plate, the trigger plate and the auxiliary touch plate, so that the switch beating plate, the trigger plate and the auxiliary touch plate drive the throwing piece to rise, then the closing of an electrical switch contact and the triggering of the mechanical action of the throwing piece are realized, the rope wheel is enabled to act normally during testing, and the device is applied to conventional testing and safety testing before leaving a factory.
本发明涉及自动检测型电梯限速器,壳体顶部设置有电气开关和触发组件,触发组件包括伸缩电磁铁、开关打板和触发板,伸缩杆贯穿开关打板并延伸至电气开关的触头一侧,伸缩杆上还设置有限位柱,开关打板的另一端贯穿壳体顶部延伸至壳体内并与触发板连接,触发板的一端可转动地连接在转动杆上,触发板的另一端设置有触发部,甩片上设置有凸起,触发板上还连接有副触板,副触板一端连接在触发板上、另一端延伸至伸缩杆和电器开关的触头之间;本发明将电磁铁通电后,伸缩杆的动作就回随即触发开关打板、触发板和副触板,使其带动甩片扬起,进而实现电气开关触头关闭和甩片机械动作的触发,测试时,使得绳轮正常动作即可,应用于常规的测试以及出厂前的安全测试。
Automatic detection type elevator speed limiter
一种自动检测型电梯限速器
2024-03-22
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |