A gas gun breech block device for sealing high-pressure gas

Abstract

A gas cannon breech block device for sealing high-pressure gas relates to the field of gas cannons. The gas gun breech block device used to seal high-pressure gas includes a screw bolt, an expansion hook fixing sleeve, a sealing plug arranged in a smooth bore barrel, at least two expansion hooks, a firing device, a spring seat connected with the screw bolt, and two ends respectively resisting Press the spring seat and the spring of the trigger, and the bolt is connected to the tail of the smoothbore barrel of the gas gun; the expansion hook fixing sleeve is located between the bolt and the sealing plug and is coaxially connected with the bolt; the middle part of the expansion hook is fixed with the expansion hook The sleeve is hinged and configured to snap into or disengage from the sealing plug when rotating; the trigger slides through the bolt and is configured to resist the pressure expansion hook to rotate and engage or disengage from the sealing plug when it moves axially toward or away from the sealing plug; the bolt, sealing The plug cooperates with the inner wall of the smoothbore barrel to form a sealed cavity communicated with the pressurized gas pipe of the gas cannon. The gas cannon breech block device used for sealing high-pressure gas can realize the automatic loading and rear loading of the gas cannon, which saves manpower and is easy to operate.

Description

technical field [0001] The present application relates to the field of gas guns, and in particular, to a gas gun breech block device for sealing high-pressure gas. Background technique [0002] In order to verify the performance of parachute types such as recovery parachute, aerial bomb parachute, seat stabilization parachute, resistance parachute, etc., such as parachute opening procedure, parachute opening speed, strength, etc., it is necessary to provide a speed 15° in the range of 18°~60° firing angle. ~250m / s and a launcher with a maximum ballistic height of more than 200m to meet the airborne time of the test carrier. If the propellant of a conventional gun is used for firing, the generated gunpowder gas will burn the textile material of the test umbrella and cause the test to fail. Therefore, the traditional test projectile firing mode cannot be used, and a gas gun that relies on gas as a power source for firing is required. Carrying out the test, in order to achieve...

AI Technical Summary

Problems solved by technology

If the propellant of conventional artillery is used for launching, the gunpowder gas produced will burn the textile material of the canopy used in the test and cause the test to fail. Therefore, the traditional test projectile launch mode cannot be used, and a gas cannon that relies on gas as the power source for launch is required. In order to achieve the initial launch velocity, the gas sealing performance and reliable firing of the gas cannon are very critical

[0003] At present, the sealing method of the existing gas cannon is to rely on the cowhide bowl filled in front of the muzzle for sealing. Since the angle of the cannon body is fixed, the test bomb can only be filled manually, and automatic filling cannot be realized, resulting in low loading and firing efficiency. Low

Images