Air pressure type protecting hood

• Main Author: LIU JIANMAO
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2014
• Subjects: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING; FIRE-FIGHTING; HUMAN NECESSITIES; LIFE-SAVING

The utility model provides an air pressure type protecting hood which comprises a soft hood body with the open lower end. The neck portion of the hood body is fixedly provided with a soft annular air chamber. The periphery of the annular air chamber and the inner wall face of the neck portion of the hood body are mutually bonded. An air inlet pipe is arranged at the bonding position of the annular air chamber and the neck portion of the hood body and can inflate the annular air chamber. The swelled annular air chamber can wrap the neck of a worker. The hood body is bound on the head in a sleeved mode, and air tightness can be achieved between the annular air chamber and the neck of the human body. The annular air chamber is provided with a first pressure relief device which can supply air in the annular air chamber into the hood body. In the pressure relieving process, the air inlet pipe can continuously supply the fresh air into the annular air chamber so that the annular air chamber can keep the swelling st