| 摘要 |
PURPOSE: A fire extinguisher is provided to prevent backflow of an extinguishing powder by installing a heat resistant plate. CONSTITUTION: A fire extinguisher includes an extinguishing powder strength control portion(210) and a heat resistant plate(300). The extinguishing powder strength control portion is formed behind an extinguishing powder spraying portion(200) of a fire extinguisher body(100). The extinguishing powder strength control portion controls the injection of extinguishing powder. The heat resistant plate surrounds the extinguishing powder spraying portion.
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