Civil air defense closed sleeve

• Main Author: SUN CHUNLEI
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2020
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR DAMPING VIBRATION; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SHOCK-ABSORBERS; SPRINGS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a civil air defense closed sleeve. The device comprises a wall, a movable pipe and a second airbag, a protection pipe is arranged on the inner side of the wall body; a closed sleeve main body is arranged on the inner side of the protection pipe; a covered channel is formed in the surface of the inner side of the closed sleeve main body; flange plates are arranged at thetwo ends of the closed sleeve body, a movable pipe is arranged on the inner side of the closed sleeve body, a first air bag is bonded to the outer side of the movable pipe, a second air bag is arranged on the inner side of the movable pipe, a connecting pipe is connected between the second air bag and the first air bag, and a pipeline body is arranged on the inner side of the movable pipe. According to the civil air defense closed sleeve, effective damping and protection can be conducted on the pipeline main body through the arranged protection pipe and the second air bag, damage to a pipeline in the pipeline main bo