Threshold-free civil defense door of doorway
A technology of entrance and exit and civil air defense door, applied in the field of civil air defense door, can solve the problem of inconvenient access for personnel and vehicles, and achieve the effect of convenient application, flexible switch and good airtight performance
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[0031] Examples see Figure 1-3 As shown, this kind of entrance and exit door without threshold is set at the entrance and exit of the civil air defense project, including door leaf 1, door frame 2, lock 3, hinge 4, sealing beam 5 and sealing beam lifting mechanism 6, and the door leaf 1 and door frame 2 Seals are arranged between. In this embodiment, the door leaf 1 has a double-leaf door structure. The door leaf includes a front steel plate, a back steel plate, and a profile steel frame sandwiched between the front steel plate and the back steel plate, and the door leaf abdominal cavity 38 is formed between the front steel plate and the back steel plate.
[0032] See Figure 4-6 The sealing beam 5 is a flip-type sealing beam, including a hinge base 10 fixedly connected to the back of the door leaf, a rocker 11 hingedly connected to the hinge base, a flip beam 12 fixedly connected to the rocker, and a flip beam fixed on the flip beam The ground seal 13 matched with the ground, a...
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