Rectifier convenient to disassemble and assemble

The utility model relates to the technical field of rectifiers, and discloses a rectifier convenient to disassemble and assemble, which comprises a rectifier body, a shell is arranged at the upper end of the rectifier body, and a fixing structure is arranged on the side wall of the rectifier body. The fixing structure comprises a fixing frame, an L-shaped clamping block, a positioning block, an L-shaped notch, a fixing cylinder, a limiting spring, a pulling rod, a first air bag, an annular plate, a second air bag, a moving rod, a pressed plate, an extrusion plate and a reset spring, and when the lower end of the L-shaped clamping block is connected with the L-shaped notch, the L-shaped clamping block can extrude the pressed plate, so that the pressed plate moves, and the pressing plate is fixed through the fixing cylinder. The pressed plate moves to drive a moving rod and an extrusion plate on the side wall of the pressed plate to move, the extrusion plate moves to extrude a first air bag, at the moment, air