A bi -polar water pressure control single loop blocks up water detection instrument for overlying strata crack is surveyed

The utility model discloses a bi -polar water pressure control single loop blocks up water detection instrument for overlying strata crack is surveyed, which comprises a carriage body, bottom of the car body is equipped with the gyro wheel, one side of automobile body is equipped with the pushing hands, be equipped with the controller in the pushing hands, the top surface of automobile body is equipped with the load board, be equipped with weighing sensor between load board and the automobile body, weighing sensor is connected with the input of controller. The utility model discloses weighing device is set up on the dolly, approveing and weighing the material on the dolly can be realized, setting up strutting arrangement below the load board, can supporting load board before weighing, weighing sensor is out of work when guaranteeing to load and unload the material on to the dolly, guarantees to weigh precision and increase of service life. 本实用新型公开了种用于覆岩裂隙探测的双端水压控制单回路堵水探测仪，包括车体，所述车体底部设有滚轮，所述车体的侧设有推手，所述推手上设有控制器