Flow velocity measuring device for hydraulic engineering

The utility model belongs to the field of flow velocity measurement, and particularly relates to a flow velocity measuring device for hydraulic engineering, which solves the problems in the prior art that the angle of a measurer cannot be adjusted and equipment cannot be kept horizontal all the time, and comprises a shell, a box door and a first screw rod are respectively and rotatably mounted on the shell, and a sliding block is assembled in the shell in a sliding manner; a display is installed on the box door, one end of a first screw is fixedly connected with a fixing plate through a screw, the first screw is in threaded connection with a sliding sleeve, and the sliding sleeve and a sliding block are jointly and fixedly connected with a vertical rod through screws. One end of the second screw pushes the push rod, the push rod drives the sliding block to move leftwards, the sliding block slides in the sliding groove, the stand column rotates clockwise under the action of the sliding block, different angles