Patent ID: 7637406

Claim:
A nail shooter driven by a high-pressurized gas in liquid state, the nail shooter comprising: a shooter body and a handle connected with the same, the shooter body being provided with a trigger mechanism, a firing pin used for striking a nail to get it shot, a piston mechanism used for pushing the firing pin, and a switch mechanism used for releasing the driving gas toward the piston mechanism under control of the piston mechanism; wherein: the handle is provided with a coupling tube; the coupling tube is provided in lower part of a cavity with an intake joint used for connection with a cylinder containing high-pressurized gas in liquid state to introduce the high-pressure gas; the coupling tube is provided in central part of the cavity with a decompressor that is connected with the intake joint and decompresses the introduced high-pressure gas so as to keep gas pressure in upper part of the cavity of the coupling tube within a predetermined range; and under control of the trigger mechanism, the gas decompressed in the coupling tube can drive the piston mechanism via the switch mechanism, and further push the firing pin to strike the nail at a high speed to get it shot; wherein the shooter body comprises the following components: a main body used for mounting of the switch mechanism, the main body being connected with the handle and provided inside with a switch cavity; a piston tube used for mounting of the piston mechanism, the piston tube being mounted in the front of the main body and provided inside with a piston cavity; and a nail-shooting table positioned in front of the piston tube, and used for fit connection with a nail box containing nails; and wherein: a female thread is provided at lower opening of the coupling tube for screwing the cylinder; a hollow eject rod is positioned at lower part of the intake joint and can be connected with the cylinder to introduce the high-pressure gas; a cylinder is used for containing the high-pressurized gas in liquid state; a cylinder joint is positioned at opening of the cylinder; a cylinder rod is positioned in the cylinder joint and can move up and down; a cylinder sealing is positioned at lower part of the cylinder rod and can seal/open a gas port inside the cylinder joint with the cylinder rod moving up/down; a male thread is provided on external diameter of the cylinder joint; and the cylinder can be screwed to lower part of the coupling tube through matching of the male and female threads; in the structure, the hollow protruding rod can push against an intake rod provided with the cylinder to make the intake rod move down, thus opening the cylinder sealing to introduce the high-pressure gas in the cylinder into the coupling tube.