Reciprocating electromagnetic lock for platform door: Fid-Bau Portal

Reciprocating electromagnetic lock for platform door

CAI YOUGUI / LIU PENG

The invention discloses a reciprocating electromagnetic lock for a platform door and relates to the field of rail transit. The reciprocating electromagnetic lock comprises an electromagnet, a position detection block, a detection switch and a reset spring which are arranged in a housing, the electromagnet is composed of a fixed frame and a black iron shaft capable of doing reciprocating motion on the fixed frame, one end of the black iron shaft extends out of the housing to serve as a spring bolt of the electromagnetic lock, and the other end of the black iron shaft is coaxially connected with the reset spring and is further connected with a position detection block capable of moving together with the reset spring, and the position detection block is movably contacted with the detection switch. Compared with the prior art, the reciprocating electromagnetic lock has the characteristics of small volume, simple structure, few parts, good leakproofness and no maintenance in the use process.

一种站台门用往复运动电磁锁，涉及轨道交通领域。本发明包括置于罩壳内的电磁铁、位置检测块、检测开关和复位弹簧。所述电磁铁由固定架及能在固定架上往复运动的玄铁轴组成。所述玄铁轴的一端延伸出罩壳作为电磁锁的锁舌，玄铁轴的另一端与复位弹簧同轴连接，同时还连接能与其一同位移的位置检测块。所述位置检测块与检测开关活接触。同现有技术相比，本发明具有体积小，结构简单，零件少，密闭性好，使用过程中免维护的特点。

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