Protective assembly based on electric meter for instrument

An electric energy meter body is placed in a box body, buckling grooves are formed in the tops of the two sets of side faces of the electric energy meter body, two sets of threaded holes are formed in one surface of the box body, bolts are arranged in the threaded holes, one end of each bolt is fixedly provided with a bearing sleeve, and the other end of each bolt is fixedly provided with a protective cover. Clamping teeth are arranged on the edges of the bearing sleeves, clamping strips are correspondingly installed on the clamping teeth in a meshed mode, buckling blocks are arranged on one sides of the clamping strips, screws are installed between the buckling blocks and the clamping strips, the buckling blocks and the clamping strips are detachably arranged, and a cylinder is installed on the lower portion in the box body in a sliding mode. The electric energy meter box has the advantages that instruments with different sizes can be limited, wires can be conveniently stored, and the electric energy meter c