Automatic folding fan type fire extinguisher

Abstract

The invention relates to the technical field of fire extinguishing devices and particularly discloses an automatic folding fan type fire extinguisher. The fire extinguisher comprises a gas bottle filled with a fire extinguishing object; the fire extinguishing object is sprayed from a spray nozzle on a gas bottle operating part through pressure; a spray pipe for forming the spray nozzle is arranged on in gas bottle operating part; a plurality of fan blades are arranged on the spray pipe; a plurality of linkage rings are arranged at roots of the fan blades; a circular hollow assembly barrel is formed by the linkage rings; linkage structures which are sequentially connected to form chain driving are arranged on the linkage rings; the assembly barrel is sleeved on the spray pipe; and a pneumatic device for driving the first fan blade is arranged between the spray pipe and the assembly barrel. The fire extinguisher disclosed by the invention is reasonable in structure and has the advantages that part of air pressure is guided into the assembly barrel via an air hole when the fire extinguisher sprays; a poking plate is pushed and the fan blades are sequentially unfolded to form a transparent protective screen and shield smoke dust; the fan blades are driven by a reset spring to be sequentially folded after the fire extinguisher is used, so that the fire extinguisher is capable of effectively avoiding smoke dust influencing the view of users and reducing the influence of harmful matters in the smoke dust on the health of the users.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing devices, in particular to an automatic folding fan fire extinguisher. Background technique [0002] A fire extinguisher is a portable fire extinguishing tool. Chemicals for extinguishing the fire source are placed in the fire extinguisher. It is one of the common fire prevention facilities. It is stored in public places or places where fires may occur. Different types of fire extinguishers have different ingredients. , are designed for different fire causes. The driving source of traditional fire extinguishers mostly adopts the pressure jet type. When the fire extinguishing components are sprayed during use, a liquid or mist gas barrier will be generated. The smoke generated by the combustion of the fire source contains a lot of dust particles and harmful gases. When the fire extinguisher sprays at high speed The mixture of gas, dust, mist and particles flies up with the airflow and fi...

AI Technical Summary

Problems solved by technology

The driving source of traditional fire extinguishers mostly adopts the pressure jet type. When the fire extinguishing components are sprayed during use, a liquid or mist gas barrier will be generated. The smoke generated by the combustion of the fire source contains a lot of dust particles and harmful gases. When the fire extinguisher sprays at high speed The mixture of gas, dust, mist and particles flies up with the airflow and fills the user's front and surrounding environment. It is easy to confuse the firefighters' vision and cause the firefighters to be in a dangerous situation. Once the operator inhales these mixed substances, it will also be harmful to health.

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