Sound insulation door

By adopting a composite layer structure for the soundproof door panel and sealing strip design, the problem of door hinge burden caused by thick steel plates is solved, achieving lightweight and efficient sound insulation and extending service life.

CN224326230UActive Publication Date: 2026-06-05ZEBRA EASYGOU E-COMMERCE CO LTD +1
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Patent Information

Application Number
CN202521297052.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-24
Publication Date
2026-06-05
Estimated Expiration
2035-06-24

AI Technical Summary

Technical Problem

In existing soundproof door designs, thick steel plates increase the burden on the door hinges, making the door difficult to open and close, and may even damage the hinges.

Method used

The door panel adopts a composite layer structure, including a panel, sound insulation and heat insulation pads, medium density fiberboard and fiber sound-absorbing board, which are connected by damping adhesive. The door frame uses LVL board and MDF board, and sealing strips are set at the contact points to improve the sound insulation effect.

Benefits of technology

It achieves excellent sound insulation while reducing the weight of the door, improving the ease of opening and closing and extending its service life.

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Abstract

The utility model discloses a sound insulation door which comprises a door frame and a door plate, the door plate is rotatably connected with the door frame, and the door plate is of a composite layer structure and sequentially comprises a panel, a sound insulation and heat preservation gasket, a medium-density fiberboard and a fiber acoustic board from outside to inside. The panel, the sound insulation and heat preservation gasket and the medium-density fiberboard are symmetrically arranged on the two sides of the fiber sound absorption board, and the door board further comprises multiple layers of damping glue used for connecting all material layers. The sound insulation door has the advantages of being good in sound insulation performance, light in weight and convenient to open and close due to the fact that the door plate is arranged to be of the composite layer structure.
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