Patent ID: 7789437

Claim:
A lockable door assembly for covering and sealing an opening of a housing, wherein the housing has a rib formed thereon, the lockable door assembly comprising: a door pivoted to the housing for covering the opening; a first sliding member movably disposed on the door and arranged to slide between a first position and a second position on the door, wherein the first sliding member has a latching portion, an accommodation portion, and at least one nick, wherein the nick extends from the accommodation portion, and wherein the latching portion is engaged with the rib when the first sliding member is in the first position thereof, so as to stop the door from rotating relative to the housing; at least one second sliding member movably disposed on the door, the second sliding member arranged to slide between a first position and a second position located within the accommodation portion when the first sliding member is in the first position thereof, wherein the sliding paths of the second sliding member and the first sliding member are intersected, and wherein the first sliding member and the second sliding member are arranged such that when the second sliding member is in the first position thereof and the first sliding member in the first position thereof, at least a portion of the second sliding member is inserted into the nick to prevent the first sliding member from departing from the first position thereof, and wherein when the second sliding member is in the second position thereof and the first sliding member in the first position thereof, said portion of the second sliding member is removed from the nick but remains within the accommodation portion, and the first sliding member can depart from the first position.