Airtight structure for barrel of revolver
By adopting a movable barrel structure that can move forward and backward in the revolver, the worm gear and worm gear can be converted and moved to achieve a close fit between the barrel and the runner, the problem of poor air tightness of the barrel is solved, and the initial velocity of the bullet and the shooting safety are improved.
Patent Information
- Application Number
- CN202510579357.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2025-06-20
AI Technical Summary
The barrel of existing revolvers is poorly airtight, causing energy leakage of gunpowder explosion, affecting the initial velocity and shooting accuracy of the bullet, and may cause damage to the shooter.
The movable barrel structure that can move forward and backward is adopted. The index rotational movement of the rotary wheel shaft is converted into the rearward linear movement of the barrel through the worm gear, so as to achieve a close fit between the rear end face of the barrel and the front end face of the wheel, thereby eliminating the gap.
It effectively eliminates the gap between the barrel and the nest to be fired, avoids the leakage of gunpowder explosion and gas, improves the initial speed and range of the bullet, and protects the shooter's sight and safety.
Smart Images
Figure CN120176485A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a revolver, in particular to an airtight structure of a revolver barrel, and belongs to the field of firearms. Background Art
[0002] A revolver is a multi-shot non-automatic firearm. Its main feature is that a cylindrical revolver magazine with 5-7 cylinders (mostly 6) is installed in the revolver chamber of the gun body through a revolver rocker. When firing, the bullets in each cylinder rotate clockwise around the revolver axis with the revolver magazine under the action of the ratchet mechanism and aim at the barrel one by one. Since the revolver magazine swings to the left and comes out under the drive of the revolver rocker when loading bullets, it is also called a revolver.
[0003] In order to facilitate the flexible rotation of the revolver magazine, a certain gap needs to be reserved between the front end face of the revolver magazine and the rear end face of the barrel of the revolver. As a result, the gunpowder explosion energy will leak from the gap, which not only affects the initial velocity of the bullet, but the leaked high-explosive combustion gas can also easily affect the shooter's line of sight, reduce shooting accuracy, and even cause burns to the shooter.
[0004] To this end, some people have proposed special improvement measures for the defect of poor air tightness of revolver barrels: such as Nagant revolvers and S&W M629 hunter series revolvers. The main feature of the Nagant revolver is that when firing, a special mechanism pushes the entire revolver magazine forward a certain distance to reduce the gap between the front end of the revolver magazine and the rear end of the barrel, thereby reducing the leakage of gunpowder gas and improving the air tightness of the barrel. However, this revolver not only has a complex structure and poor mechanical reliability, but also because the revolver magazine cannot swing to the left to escape, it is more troublesome to unload and reload, and its promotion and application are subject to certain restrictions. The main feature of the S&W M629 hunter series revolver is that the gap between the front end of the revolver magazine and the rear end of the barrel is small (only 0.006 inches ≈ 0.1524 mm). Although the structure is simpler than that of the Nagant revolver, it still cannot achieve complete sealing. In addition, to achieve a smaller gap, the processing accuracy of parts must be greatly improved, which will lead to a significant increase in manufacturing costs. Third, the small gap will also form carbon deposits on the gunpowder gas, which can easily cause the revolver magazine to get stuck, increasing the difficulty of cleaning and maintenance.
[0005] In view of the defects existing in the prior art, the present invention aims to provide a revolver barrel airtight structure which is convenient for replacing ammunition and has good explosion airtightness.
[0006] To achieve the above object, the present invention adopts the following technical solutions: It includes a barrel, a rotating wheel mounted on the gun body through a rotating wheel rocker arm, and a rotating wheel shaft fixed on the rotating wheel. A barrel sleeve is fixed at the front end of the gun body. The barrel with a turbine fixed on its surface is supported in the barrel sleeve through its two ends. There is a spring mounted on the barrel between the turbine and the barrel sleeve. A notch is provided at the position corresponding to the turbine below the barrel sleeve, and a cap is fixed at the front port of the barrel sleeve; below the turbine, there is a worm fixed on the rotating wheel shaft and meshing with the turbine, and five avoidance grooves are evenly distributed on the outer cylindrical surface of the worm.
[0007] In the above technical solution, the end face of the barrel adjacent to the rotating wheel has an outer conical surface structure, and the end face of each cartridge chamber adjacent to the barrel has an inner conical surface adapted to the outer conical surface.
[0008] In the above technical solution, there is a bracket fixed integrally with the barrel sleeve below the barrel sleeve, and a receiving groove is provided on one side of the bracket adjacent to the swinging and disengaging direction of the rotating wheel rocker arm.
[0009] Compared with the prior art, since the present invention adopts the above technical solutions, it has the following advantages: 1) The originally fixed barrel structure is changed to a movable structure that can move back and forth. The indexing rotational motion of the rotating wheel shaft is converted into the backward linear motion of the barrel through a worm and worm gear. Therefore, it can be cleverly realized that the rear end face of the barrel is closely attached to the front end face of the rotating wheel, effectively eliminating the gap between the barrel and the cartridge chamber to be fired, and completely avoiding the defect of energy loss caused by the leakage of ammunition explosion gas; it not only increases the initial velocity and range of the bullet, but also effectively avoids the influence on the shooter's line of sight or burns caused by the leakage of ammunition explosion.
[0010] 2) Since the present invention only improves the barrel and the rotating wheel shaft, the rotating wheel can still swing out to the left through the rotating wheel rocker arm, so it does not affect the operation of unloading and loading ammunition of a traditional revolver.
[0011] 3) Since the rear end face of the barrel is changed to an outer conical surface structure and the front end face of the cartridge chamber is changed to an inner conical surface structure adapted to the outer conical surface, not only the airtightness between the barrel and the cartridge chamber is further improved, but also the coaxiality between the barrel and the cartridge chamber is increased, reducing the hidden danger of bullet jamming or chamber explosion. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is Figure 1 the A - A cross-sectional view in Figure 3 is Figure 1 the enlarged view at I in
[0013] In the figure: cap 1, barrel sleeve 2, barrel 3, turbine 4, spring 5, gun body 6, cartridge chamber 7, rotary wheel 8, rotary wheel chamber 9, pin shaft 10, rotary wheel rocker arm 11, rotary wheel shaft 12, worm 13, receiving groove 14, bracket 15, avoidance groove 16, mating sealing conical surface 17. Detailed implementation manner
[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0015] As Figures 1 to 3 shown: A barrel sleeve 2 is fixed to the front end of the gun body 6, and the barrel 3 with the turbine 4 fixed on its surface is supported in the barrel sleeve 2 through its two ends, and there is a spring 5 installed on the barrel 3 between the turbine 4 and the barrel sleeve. A notch (not marked in the figure) is opened at the position corresponding to the turbine 4 below the barrel sleeve 2, and the lower edge of the turbine 4 protrudes from the notch. A cap 1 for preventing the barrel 3 from protruding forward is fixed at the front port of the barrel sleeve 2. The rotary wheel rocker arm 11 is hinged to the gun body 6 through a pin shaft 10, and the rotary wheel 8 is rotatably installed on the rotary wheel rocker arm 11 through a rotary wheel shaft 12; below the turbine 4 is a worm 13 fixed on the rotary wheel shaft 12 and meshing with the turbine, and five avoidance grooves 16 are evenly distributed on the outer cylindrical surface of the worm.
[0016] In order to improve airtightness, the right end face (the end face close to the rotary wheel 8) of the barrel 3 has an outer conical surface structure (not marked in the figure), and the left end face (the end face close to the barrel 3) of each cartridge chamber 7 has an inner conical surface (not marked in the figure) adapted to the outer conical surface; the outer conical surface and the inner conical surface together form a mating sealing conical surface 17.
[0017] In order to increase the rigidity and stability of the barrel sleeve 2, a bracket 15 fixedly connected to it is provided below the barrel sleeve. A receiving groove 14 is opened on one side of the bracket close to the swinging and disengaging direction of the rotary wheel rocker arm 11, and the receiving groove communicates with the notch.
[0018] Working principle: Pull the trigger (not marked in the figure), the ratchet mechanism (not shown in the figure) drives the rotary wheel 8 and the rotary wheel shaft 12 to rotate synchronously, so the worm will drive the barrel 3 to move backward through the turbine 4 ( Figure 1 to the right in the figure); when the center line of the cartridge chamber 7 rotates to the position aligned with the center line of the barrel 3 (the bullet is in the critical state of being ready to be fired), the rear end face (outer conical surface) of the barrel 3 just fits with the front end face (inner conical surface) of the cartridge chamber 7; continue to pull the trigger, and the hammer (not marked in the figure) will strike the bullet in the cartridge chamber 7 through the firing pin (not shown in the figure) under the action of the firing spring (not shown in the figure). After shooting, the worm 13 continues to rotate driven by the rotary wheel 8. At this time, the center line of the avoidance groove 16 on the worm 13 is exactly aligned with the center line of the lower edge of the turbine 4, so the barrel 3 moves forward under the action of the spring 5 (Figure 1 The gun barrel 3 is reset by moving leftward in the middle (moving leftward), so that the right end surface of the gun barrel 3 is out of contact with the left end surface of the cylinder 7.
[0019] Pull the trigger again to fire the second round of bullets, and repeat the cycle until all bullets are fired.
[0020] When changing the bullet, release the wheel locking mechanism (not shown in the figure) and move it to the left (i.e. Figure 1 The rotating wheel rocker arm 11 is pushed to drive the rotating wheel 8 to swing out of the rotating wheel cavity 9, so as to realize rapid bullet withdrawal and loading; after loading, the rotating wheel rocker arm 11 is reversed to make the rotating wheel 8 stuck in the rotating wheel cavity 9 and locked.
Claims
1. A revolver barrel airtight structure, comprising a barrel, a revolver mounted on a gun body through a revolver rocker arm, and a revolver shaft fixed on the revolver, characterized in that: A gun barrel sleeve (2) is fixed at the front end of a gun body (6); a gun barrel (3) having a turbine (4) fixed on its surface is supported in the gun barrel sleeve (2) through its two ends; a spring (5) installed on the gun barrel (3) is provided between the turbine (4) and the gun barrel sleeve; a notch is provided below the gun barrel sleeve (2) corresponding to the position of the turbine (4); a cap (1) is fixed at the front end of the gun barrel sleeve (2); a worm (13) is provided below the turbine (4) and is fixed on a rotating wheel shaft (12) and meshes with the turbine; five avoidance grooves (16) are evenly distributed on the outer cylindrical surface of the worm.
2. The revolver barrel airtight structure according to claim 1, characterized in that: The end surface of the gun barrel (3) adjacent to the rotating wheel (8) is in the form of an outer conical surface structure, and the end surface of each cartridge (7) adjacent to the gun barrel (3) has an inner conical surface adapted to the outer conical surface.
3. The revolver barrel airtight structure according to claim 1 or 2, characterized in that: A bracket (15) is fixedly connected to the barrel sleeve (2) below the barrel sleeve (2), and a receiving groove (14) is provided on the side of the bracket adjacent to the swinging and disengaging direction of the rotary rocker arm (11).