Multifunctional water mist negative pressure smoke exhaust fire extinguishing device

By designing a multifunctional water mist negative pressure smoke exhaust fire extinguishing device, including an adjustable angle spray head and broken window assembly, the problem that existing devices cannot effectively exhaust smoke in anti-theft network scenarios is solved, safety and durability are improved, and effective smoke exhaust is achieved.

CN222623589UActive Publication Date: 2025-03-18许环锐 +2
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Patent Information

Application Number
CN202421142118.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-23
Publication Date
2025-03-18
Estimated Expiration
2034-05-23

AI Technical Summary

Technical Problem

When the existing negative pressure smoke exhaust device faces a scene with an anti-theft net, it is impossible to adjust the angle of the spray head, which causes firefighters to use it diagonally below the window, and the spray head cannot be extended into the anti-theft net to work, and the windows inside the anti-theft net cannot be broken, thereby achieving the smoke exhaust effect, and the safety of firefighters is low.

Method used

A multifunctional water mist negative pressure smoke exhaust fire extinguishing device is designed, including connecting pipes, support bends, rotary joints, spray heads and broken window components. By manually rotating the support bend, adjusting the angle of the spray head, and breaking the window through the broken window assembly, fire water is sprayed through the device to form a negative pressure to discharge the smoke.

Benefits of technology

The device can adjust the angle of the spray head in the scene with an anti-theft net, and penetrate into the broken window of the anti-theft net to realize the smoke exhaust function, improve the safety of firefighters and the durability of the device, and lock the support bend and spray head through the positioning component, reducing its shaking during work.

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Abstract

The utility model discloses a multifunctional water mist negative-pressure smoke-discharging and fire-extinguishing device, which relates to the technical field of smoke-discharging and fire-extinguishing rotating shafts, and has the advantages that aiming at scenes with burglar meshes, the angle of a spray head of the device can be adjusted, firefighters stand obliquely below windows, and the device extends into the burglar meshes to break the windows, so that the smoke-discharging function is realized, and the safety of the device is improved. According to the technical scheme, the device is characterized by comprising a connecting pipe and a supporting bent pipe, an elbow is fixed to one end of the connecting pipe, a rotating connector is fixed to the end, away from the connecting pipe, of the elbow, one end of the supporting bent pipe extends into the rotating connector and is rotationally connected with the rotating connector, and a corner positioning gear fixed to the rotating connector is embedded in the circumferential outer wall of the rotating connector; the corner positioning gear extends out of the supporting bent pipe, and a corner positioning pin seat located beside the corner positioning gear is fixed to the outer wall of the circumference of the supporting bent pipe.
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