Portable flow measuring weir plate

The utility model belongs to the technical field of flow measurement, and particularly relates to a portable flow measurement weir plate which comprises a weir plate body, an upstream face and an observation face are arranged on the front side and the rear side of the weir plate body respectively, reinforcing plates are installed on the two sides of the weir plate body, an installation block is further installed on the front surface of the observation face, and a connecting ring is arranged on the surface of the installation block. A positioning groove is formed in the surface of the upstream face, and a magnet is installed on the back of the reinforcing plate. According to the portable flow measuring weir plate, the design that the reinforcing plate can be matched with the connecting shaft to overturn backwards and is fixedly attached to the back of the weir plate main body through the positioning groove and the magnet is utilized, so that the size of the weir plate during carrying is effectively reduced; me