COUPLING STRUCTURE FOR TANK BODY AND TANK COVER

摘要

PURPOSE: A coupling structure between a tank body and a tank cover is provided to couple the tank cover and the tank body without using a bolt, and to easily attach and detach the tank cover to and from the tank body. CONSTITUTION: A coupling structure between a tank body(10) and a tank cover(30) comprises the tank body, the tank cover, and locking wings(20). The tank body stores water in an internal space surrounded by a side wall and a bottom plate. The top of the tank body is open. The tank cover covers the top of the tank body, and has coupling parts along the circumference of the tank cover so that the tank body can be attached and detached. The locking wings are turnably formed on the top of the side wall of the tank body. The locking wings turn to be coupled to the coupling parts so that the tank cover can be coupled to the tank body. By turning and joining the lock wings to the connecting part, the tank cover is coupled to the tank body.