External gas circuit, air fire extinguishing cannon and using method of air fire extinguishing cannon

• Main Authors: NAOKATSU ITARU, JIN SONGJI, FAN BAILIN
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS,e.g. CANNONS; BLASTING; FIRE-FIGHTING; HARPOON GUNS; HEATING; HUMAN NECESSITIES; LAUNCHERS FOR ROCKETS OR TORPEDOES; LIFE-SAVING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention provides an external gas circuit, an air fire extinguishing cannon and a using method of the external gas circuit, the air fire extinguishing cannon comprises a bomb pushing device, a locking device, a firing device, the external gas circuit and a cannon body, the bomb pushing device pushes a fire extinguishing bomb to a bore locking device to be locked, so that the bore is closed; air pressures in two air chambers of the firing device are unequal through an external air path and the firing device, so that high-pressure air enters a bore to launch a fire extinguishing bomb, and after launching is finished, an external control end controls all the devices to reset to prepare for next-time launching; the air fire extinguishing cannon can be controlled by a vehicle or a robot to launch a fire extinguishing bomb through air pressure, the launching air pressure can be adjusted according to different sites and requirements to change the firing range, the fire extinguishing cannon is suitable for long-