The invention discloses an additional elevator safety circuit. When an action switch of a safety system is turned off, maintaining operation can only be carried out after an upper stop action switch,a lower stop action switch and a guardrail stretching switch are all in place; besides, when a lower auxiliary limiting switch is cut off, an elevator can only be subjected to upward maintaining operation and cannot be subjected to downward maintaining operation; and when action of an upper auxiliary limiting switch is cut off, the elevator can only be subjected to downward maintaining operation and cannot be subjected to upward maintaining operation. When a reset switch of the safety system is in a reset state, normal operation can only be restored after an upper stop reset switch, a lower stop reset switch, a protection corner withdrawing switch and a guard rail withdrawing switch are all in place. The invention further discloses the elevator safety system including the additional elevator safety circuit. The action and reset functions of the elevator safety system can be achieved without the participation of software, and all control functions described in the GB 28621-2012 standardcan be achieved.

    本发明公开了一种附加电梯安全回路,当安全系统动作开关闭合后,必须上止停动作开关、下止停动作开关、护栏伸展开关全部到位后,才能够进行检修运行,并且当辅下部限位开关断开时,电梯仅能向上检修运行,无法向下检修运行,当辅上部限位开关动作断开时,电梯仅能向下检修运行,无法向上检修运行;当安全系统复位开关为复位状态,必须上止停复位开关、下止停复位开关、护脚板收回开关、护栏收回开关全部到位后,才能够恢复正常运行。本发明还公开了包括所述附加电梯安全回路的电梯安全系统,不需要软件参与,即可实现电梯安全系统的动作及复位功能,并且能够实现GB 28621‑2012标准所述的各项控制功能。


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    Titel :

    Additional elevator safety circuit and elevator safety system


    Weitere Titelangaben:

    附加电梯安全回路及电梯安全系统


    Beteiligte:
    DONG DEJING (Autor:in) / ZHANG LEI (Autor:in)

    Erscheinungsdatum :

    2020-05-08


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



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