Intercepting device

The utility model discloses a cut-off device which comprises a portal frame, two sliding grooves are fixedly formed in the inner side of the portal frame, a motor and two connecting bases are fixedly connected to the top of the portal frame, a shaft rod is jointly and rotationally connected between the two connecting bases, and two winding rollers are fixedly connected to the outer surface of the shaft rod. The device has the advantages that in the working process of the device, a water source is intercepted through the arranged intercepting plate, then an alarm switch is pushed through the arranged buoyancy plate and the push rod when the water level reaches a warning line, and therefore constructors are reminded; the water level does not need to be manually monitored and is convenient to adjust, so that the construction cost is reduced. 本实用新型公布了一种截流装置，包括龙门架，所述龙门架的内侧固定安装有两个滑槽，所述龙门架的顶部固定连接有电机与两个连接座，两个所述连接座之间共同转动连接有轴杆，所述轴杆的外表面固定连接有两个绕线辊，所述绕线辊的外表面固定绕接有钢丝绳，本实用新型的有益效果是，本装置在工作的过程中，通过设置的截流板对水源进行截流，然后通过设置的浮力板与推杆在水位到