Inverter case opened and closed by using hinge lock catch

The inverter case opened and closed through the hinge and the lock catch comprises a case body and a case cover which are matched with each other, the hinge is fixedly arranged on one side of the case body and the case cover, and the lock catch is arranged on the other side of the case body and the case cover; the hinge comprises a fixed seat, a fixed strip and a pin shaft, the fixed seat comprises a fixed sheet and a pin shaft seat, the pin shaft seat is provided with a through shaft hole, a vacant section is arranged in the middle of the pin shaft seat, and the fixed seat is fixedly mounted on one side edge of the box body through the fixed sheet; a protruding seat is arranged in the middle of the fixing strip which is fixedly connected with one side of the box cover. The raised seat is arranged in the vacant section of the pin shaft seat, and the pin shaft is inserted into and penetrates through the shaft hole; the lock catch comprises a lock body and a retaining ring, the lock body comprises a pin seat an