Gun barrel

Abstract

A gun barrel is provided, including: a barrel body, having a passage therethrough, the passage being provided for a bullet member to be received and pass therethrough, two opposite ends of the passage of the barrel body being respectively formed with a bullet inlet and a bullet outlet formed by an inner wall of the barrel body surroundingly and continuously arranged, a circumferential face of the barrel body being formed with an opening, the opening being near the bullet inlet; a tangential portion, disposed at the opening restrictedly and partially movably protrusive into the passage, the tangential portion for providing friction with a surface of the bullet member tangentially; at least one vent hole, disposed through the barrel body and being near the bullet outlet.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a tube member, and more particularly to a gun barrel.[0003]2. Description of the Prior Art[0004]Usually, a conventional gun barrel structure as disclosed in TWM480667 at least includes a barrel body, and two sides of the barrel body have an opening respectively. One of the openings is a conic opening tapered inward, and the other end of the openings is formed with two protruding ribs. A gun barrel can be put into the barrel body and push a bullet member through high pressure air. The bullet member is pressed by the two protruding ribs to produce a great tangential force so as to make the bullet member spin.[0005]However, the gun barrel structure mentioned above does not have a structure for guiding and positioning the bullet member, so the preciseness and stability need to be improved. For example, when the bullet member enters the gun barrel and is pressed by the two protruding ribs, th...

AI Technical Summary

Benefits of technology

The present invention provides a gun barrel that helps to stabilize the flight of a bullet by guiding the air flow inside it. The arrangement of vent holes can be adjusted to work with different gun barrel structures. The gun barrel also has ramps to support the surface of the bullet and make it stable and balanced, which helps to elevate the shot range and prevent errors.

Problems solved by technology

However, the gun barrel structure mentioned above does not have a structure for guiding and positioning the bullet member, so the preciseness and stability need to be improved.

For example, when the bullet member enters the gun barrel and is pressed by the two protruding ribs, the position and direction of the bullet member may deviate so that the bullet member is unable to move smoothly in the gun barrel.

Furthermore, the kinetic energy of the bullet member may decrease due to friction and collision with an inner wall of the gun barrel, so a shot range of the bullet member may decrease, and a user may mishit a target.

In addition, an inner air pressure a conventional gun barrel is too great; therefore, when the bullet member is fired, the bullet member is influenced by the air pressure and becomes unstable.

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