Water gauge

The water gauge comprises an installation support and a gauge body, the installation support is provided with a clamping groove penetrating in the length direction of the installation support, the gauge body comprises a gauge plate and a clamping part connected to the back of the gauge plate, the clamping part is movably matched in the clamping groove, and when the clamping part moves to the end of the installation support, the clamping part is clamped in the clamping groove. And the clamping part can be separated from the clamping groove. According to the water gauge, the gauge plate can be detachably connected with the mounting bracket through the clamping part which is in sliding fit with the interior of the clamping groove, so that when the gauge body is replaced, a worker does not need to disassemble a bolt for fixing the water gauge in the traditional technology; and the scale body can be disassembled and assembled on the mounting bracket only by pushing and pulling the scale plate to drive the clamping