Air pressure ejector device

Abstract

The invention discloses an air pressure ejector device, which comprises a launching barrel, wherein the lunching barrel is a cylindrical barrel of which the bottom is sealed and the top is provided with an opening; a compressed air bottle, a check valve, an air reservoir and a sandbag are arranged in the lunching barrel; the compressed air bottle is positioned on the bottom of the launching barrel; the upper part of the compressed air bottle is connected with the check valve; the upper part of the check valve is connected with the air reservoir; the compressed air bottle conveys high-pressure air into the air reservoir via the check valve; the upper part of the air reservoir is provided with a solenoid valve; the conveying of the air in the air reservoir to the outside is controlled by the solenoid valve. According to the air pressure ejector device, a push shot device is additionally arranged between the sandbag and the launching barrel, direct friction between the sandbag and the lunching barrel is effectively avoided, and the projection distance of the sandbag is further. The launching barrel and the push shot device are tightly combined to avoid the phenomenon that a great quantity of compression air is wasted since more gaps exist between the sandbag and the lunching barrel in the prior art, and cost is effectively lowered. The valve of the air reservoir adopts the solenoid valve which replaces an original hand valve, and high-pressure gas in the air reservoir can be quickly released since the solenoid valve can be more quickly opened than the hand valve so as to greatly improve launching efficiency and the use ratio of the compressed air.

Description

technical field

[0001] The invention relates to a catapult device, in particular to a pneumatic catapult device. Background technique

[0002] The air pressure catapult device is a device used to throw the rope to the designated position. The traditional air pressure catapult device does not have equipment to counteract the friction between the projectile and the launch tube, so that there is a huge friction between the projectile and the launch tube. friction, thereby reducing the launch distance. The gap between the projectile and the launch tube of the traditional air pressure catapult device is relatively large. When the projectile is thrown by the compressed air, a large part of the compressed air is exposed between the projectile and the launch tube, which greatly reduces the Emission efficiency and compressed air utilization are improved. The exhaust valve of the air storage chamber of the pneumatic catapult device is a manual valve, and the opening of the manual va...

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