| 摘要 |
PURPOSE: A soundproof door is provided to improve fire resistance and adiabatic efficiency as well as sound-absorbing power, also to simplify structure and promote mass production. CONSTITUTION: The soundproof door is composed of: a stair-shaped structure(112) necessary to cut out noises; a frame(110) provided with concaved grooves(114); a framed structure(120) comprising numbers of horizontal reinforcing bars(122a,122b) and numbers of vertical reinforcing bars(124a,124b) and arranged at regular distances; a polymer mortar layer(130) covering the reinforcing bar; a patterned-wood layer(140) attached to the polymer mortar layer by adhesives; a spacing bar(126) attached to the horizontal reinforcing bars and the vertical reinforcing bars.
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