To provide a pump gate which detects the trouble of a submerged pump and detects the pinching of foreign matter to a flap valve by detecting the closing state of the flap valve during drainage.
The submerged pump (14) which is detachably attached to the flap valve (9) is connected with a flap gate (7) incorporated in a gate door body (5) of a pump gate (3). An opening and closing detection device (10) is arranged in the gate door body (5), and a detection arm (11) is fixed to the flap valve (9) and brought into contact with the opening and closing detection device (10). An abnormality of the submerged pump (14) during operation is detected by the flap valve (9), so that the inspection and repair of the submerged pump (14) can be carried out in an emergency and the pinching of forein matters of the flap valve is detected. The opening and closing detection device (10) mounted at the gate door body (5) is easily replaced when a trouble occurs. The opening and closing detection device (10) is arranged in the gate door body (5) separated from the flow of a river, so that the opening and closing detection device (10) is not affected by floating matters in flowing water.
SUMIMORI KENJI
JP2004044316A | 2004-02-12 | |||
JP2001342999A | 2001-12-14 | |||
JPS6381935U | 1988-05-30 |