• CN 104,640,606 A
  • Filed: 08/09/2013
  • Published: 05/20/2015
  • Est. Priority Date: 08/21/2012
  • Status: Active Application
First Claim
Patent Images

1. a respiratory protective equipment, has:

  • With the compressed air source (2) of compressed air source valve (4),The breathing regulator (6) be connected with described compressed air source valve, described breathing regulator has pressure reducer (7) and heart-lung machine (8),Respiratory protection cover (10), described respiratory protection covers on first and enters that interface (11) is upper directly or via flexible pipe to be connected with described heart-lung machine,Second air-source (14), described second air-source or enter interface (12) with second of described respiratory protection cover and be connected, or be connected with the interface that described heart-lung machine is directly connected,Band governor motion (20;

         21) switching mechanism (20,22;

    21,22), the operation of described governor motion realizes breathing from the compressed air of described compressed air source via described heart-lung machine and from the switching between the breathing of described second air-source,Be connected to the outlet valve (30) on described respiratory protection cover, described outlet valve can regulate between the first running status and the second running status, wherein, under described second running status, compare under described first running status, higher interior pressure is had to work in described respiratory protection coverIt is characterized in that,Described breathing regulator (6) devises described switching mechanism (20,22;

    21,22) described governor motion (20;

         21), wherein, described switching mechanism constructs as follows, namely, described switching mechanism activates described heart-lung machine when switching to compressed air and breathing and described outlet valve (30) is adjusted to described second running status, and described switching mechanism makes described heart-lung machine out of service when switching to the breathing via described second air-source (14) and described outlet valve (30) is adjusted to described first running status.

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