Wooden heat-insulation fireproof primary-secondary door
A technology of mother-in-command doors and sub-doors, which is applied in the field of fire doors, can solve problems such as the impact resistance needs to be improved, the fire performance cannot be achieved, and the strength of fire doors is poor, so as to provide sealing effects, improve fire protection effects, and good sealing effects Effect
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[0028] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:
[0029] Such as figure 1 , figure 2 As shown, a wooden heat-insulated and fireproof composite door includes a door frame 1, a sub door 2a, and a mother door 2b; The sub-door 2a and the parent door 2b have the same structure. The door leaf 2 includes a framework 21 around the door leaf and an inner framework 22 of the door leaf; the framework 21 around the door leaf is divided into multiple regions by the inner framework 22 of the door leaf. Expanded perlite fireproof boards 23 are filled in multiple areas to form a door core, a first magnesium-silicon fireproof board 24 is fixed on the surface of the door core, and a flame-retardant plywood 25 is fixed on the surface of the first magnesium-silicon fireproof board 24 .
[0030] The ...
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