Three-dimensional soundproof and fireproof door used as one-open or both-open door

摘要

PURPOSE: A cubic soundproof and fireproof door used as a one-sided door or a double sided door is provided to secure a person's privacy, and to maximize the time of flame propagation. CONSTITUTION: The cubic soundproof and fireproof door consists of a large door composed of a front plate(10) having a wide cup shaped profile, a rear plate(20) having an inversed wide cup shaped profile, an outer front decorative plate(30) similar to the front plate, and an outer rear decorative plate(40) similar to the rear plate; a small door composed of a front plate having a wide cup shaped profile, a rear plate having an inversed wide cup shaped profile, an outer front decorative plate similar to the front plate, and an outer rear decorative plate similar to the rear plate; front and rear auxiliary plates(100) provided between the large door and the small door so as to form a desired space therebetween; a reinforcement plate(110) inserted into the interior of the auxiliary plate; and groove fitness plates on both sides of the doors.