The invention discloses an elevator operation safety protection mechanism which comprises a guide rail and an elevator car, an upper limiting mechanism and a lower limiting mechanism are installed on the upper portion and the lower portion of the guide rail respectively, a lower collision bow matched with the lower limiting mechanism is installed on the lower portion of the elevator car, and an upper collision bow matched with the upper limiting mechanism is installed on the upper portion of the elevator car. In the maintenance operation state, the two second supports stretch in place to immediately trigger the travel switch verifying that the second supports stretch in place to act, only after the travel switch acts, the elevator can be operated to operate in the maintenance state, and if the travel switch does not act, the elevator cannot operate in the maintenance state; when the elevator cancels maintenance operation and recovers normal operation, the second support can be shrunk and reset immediately, the travel switch which verifies that the second support is shrunk in place can be triggered to act immediately when the second support is shrunk in place, the elevator can recover normal operation only after the travel switch acts, and if the travel switch does not act, the elevator cannot run normally.
本发明公开了一种电梯运行安全保护机构,包括导轨和轿厢,所述导轨上部和下部分别安装有上限位机构和下限位机构,所述轿厢下部安装有与下限位机构配合的下撞弓,所述轿厢上部安装有与上限位机构配合的上撞弓。本发明,检修运行状态下,上述两个第二支架伸展到位会立即触发验证其伸展到位的行程开关动作,只有该行程开关动作后,才能操纵电梯以检修状态运行,如该行程开关未动作,电梯无法以检修状态运行;电梯取消检修运行恢复正常运行时,第二支架会立即收缩复位,收缩到位会立即触发验证其收缩到位的行程开关动作,只有该开关动作后,电梯才能恢复正常运行,如该开关未动作,电梯无法正常运行。
Elevator operation safety protection mechanism
一种电梯运行安全保护机构
2022-11-22
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
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