Civil air defense door rotating arm
The utility model relates to a civil air defense door rotating arm which comprises a door frame, a door groove is formed in the door frame, a door body is arranged in the door groove, a driving mechanism used for driving the door body to rotate is arranged on one side of the door groove, and a first...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a civil air defense door rotating arm which comprises a door frame, a door groove is formed in the door frame, a door body is arranged in the door groove, a driving mechanism used for driving the door body to rotate is arranged on one side of the door groove, and a first sealing frame is arranged on one side of the front face of the door frame. A second sealing frame is fixedly connected to the side, close to the driving mechanism, of the front face of the door body, a sealing insertion block is fixedly connected to the end, close to the second sealing frame, of the first sealing frame, and a sealing groove matched with the sealing insertion block is formed in the end, close to the first sealing frame, of the second sealing frame. The door frame is further provided with a moving mechanism used for driving the first sealing frame to be close to or away from the second sealing frame. According to the civil air defense door rotating arm device, the sealing performance between the civ |
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