Cleaning type ventilation protection air-tight door
A technology for airtight doors and cleaning, which is applied in the direction of ventilation arrangement, door/window fittings, wing leaf arrangement, etc. It can solve the problems of poor sealing between the inner airtight door and the rectangular installation frame, and achieve a good closing effect
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[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0036] refer to figure 1 , is a kind of clean ventilated protective airtight door disclosed by the present invention, comprising a door leaf 1, two upper and lower rectangular mounting frames 11 are arranged on the inner surface of the door leaf 1, and inner airtight doors 2 are covered on the rectangular mounting frames 11, One side of the inner airtight door 2 is provided with a vertical rotating shaft 3, and the rotating shaft 3 is connected to the inner surface of the door leaf 1 in rotation, and an opening and closing device 4 is connected to each inner airtight door, and the opening and closing device 4 is installed on the door leaf 1 , the door leaf 1 is opened or closed by the opening and closing device 4 and the rectangular installation frame 11 is closed.
[0037] refer to figure 2 , the opening and closing device 4 comprises a main shaft 41, a c...
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