Closed water test device for municipal pipeline

The utility model discloses a closed water test device for municipal pipelines, which comprises a water level graduated scale, a detection end of the water level graduated scale is provided with two metal probes, a gap is arranged between the two metal probes, a fixed end of the water level graduated scale is provided with an alarm device and a power supply, the alarm device is connected with the power supply, and the power supply is connected with the water level graduated scale. And the two metal probes are electrically connected with the alarm device respectively. The problems of difficulty in observation, inconvenience in operation, poor potential safety hazard and the like of a traditional closed water test are solved. 本实用新型公开了一种用于市政管道的闭水试验装置，包括水位刻度尺，所述水位刻度尺的探测端设有两个金属探头，两个金属探头之间具有间隙，所述水位刻度尺的固定端设有报警装置和电源，所述报警装置与电源连接，两个金属探头分别与报警装置电性连接。解决了传统闭水试验的观测困难、操作不便及存在安全隐患差等问题。