| 摘要 |
<p>An asphyxia rescuring apparatus includes a case and a fixing strap which fixed the case on a person. There are an air inlet pipe, a ventilating pipe and oxygen supplying pipe in the inner chamber of the case. Three of the pipes are all set on the case, the inner end of the said air inlet pipe connects to the motion source gas circuit switch valve and oxygen source gas circuit switch valve; An air cylinder is located in the inner chamber of the case. A piston rod of the air cylinder sets through the case, and there is a compression board at the outer end of the piston rod. The said motion source gas circuit switch valve has two air outlet holes which connect to two air inlet holes of the air cylinder; the said air outlet pipe and oxygen supplying pipe are both connect to the oxygen source gas circuit switch valve.</p> |
