A barrel offset, rigid locking mechanism for a pistol

Abstract

The invention discloses a gun barrel offset type rigid locking mechanism of a pistol, comprising a bolt and a gun barrel, wherein the bolt is provided with a first locking support surface, the gun barrel is provided with a second locking support surface, an unlocking tenon and a locking tenon are provided at the bottom of the rear end of the gun barrel, the unlocking tenon is arranged in front of the locking tenon, and an unlocking and locking seat is also provided, which is arranged below the gun barrel and fixedly connected to the bottom grip of the gun, and the unlocking and locking seat has a first unlocking inclined surface and a first locking inclined surface along the radial direction of the gun barrel, and the first unlocking inclined surface is close to the unlocking tenon of the gun barrel The first locking inclined surface is close to the barrel locking tenon. When the bolt and the barrel recoil, the barrel unlocking tenon collides and contacts with the first unlocking inclined surface of the unlocking and locking seat, guiding the barrel to deflect, so that the second locking support surface of the barrel is separated from the first locking support surface of the bolt and unlocked. When the bolt and the barrel return, the barrel locking tenon collides and contacts with the first locking inclined surface of the unlocking and locking seat, guiding the barrel to deflect in the opposite direction, so that the second locking support plane of the barrel is engaged with the first locking support plane of the bolt to form a rigid lock.

Description

Technical Field

[0001] The invention belongs to the technical field of firearms and relates to a barrel offset type rigid locking mechanism of a pistol. Background Art

[0002] At present, there are three main locking methods for pistols in the world: free style, semi-free style and rigid locking. For high-powered pistols, rigid locking is used (such as Glock, Browning, SIG Sauer, Type 54, Colt M1911, Beretta 92F and other pistols). Among the rigid locking methods, most of them adopt Browning locking (i.e. barrel swinging) (such as early products such as Type 54 pistol, M1911 pistol, Browning High Power pistol, etc.). This locking method has a simple structure, but the locking surface will wear out after long-term use, which will cause the accuracy to decrease. There are factors such as uneven and asymmetric forces on the parts when opening and locking, which will affect the service life of the automatic parts. Pistols that use the card swinging rigid locking (such as the Beretta 92F pistol) have a more complex structure, the moving parts are subject to structural restrictions, and the strength of the parts is low. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a new type of pistol barrel offset and rigid locking mechanism, which can not only effectively seal the chamber during the high pressure period of the internal ballistics to avoid the safety problem caused by the early unlocking of the pistol, but also can adjust the bolt movement speed by adjusting the free movement distance of the bolt, so as to achieve the purpose of reducing the bolt recoil impact speed and improving the shooting comfort, so that the pistol automatic machine moves smoothly and reliably, which is beneficial to improving the shooting accuracy, reliability and service life of the pistol.

[0004] The object of the present invention is achieved in that:

[0005] A barrel offset, rigid locking mechanism for a pistol, comprising a bolt and a barrel sleeved in the bolt, wherein a first locking support surface is provided in the middle of the bolt, and a second locking support surface is provided in the middle of the barrel, the bolt and the barrel are locked by engaging the first locking support surface and the second locking support surface, an unlocking tenon and a locking tenon are provided at the bottom of the rear end of the barrel, the unlocking tenon is placed in front of the locking tenon, and an unlocking and locking seat is further provided, the unlocking and locking seat is arranged below the barrel and fixedly connected to the bottom grip of the pistol, the unlocking and locking seat has a first unlocking inclined surface and a first locking inclined surface along the radial direction of the barrel, and the first unlocking inclined surface The inclined surface is close to the unlocking tenon of the barrel, and the first locking inclined surface is close to the locking tenon of the barrel. When the bolt and the barrel recoil together, the unlocking tenon of the barrel collides and contacts with the first unlocking inclined surface of the unlocking and locking seat, guiding the barrel to deflect, so that the rigidly engaged second locking support surface of the barrel is separated from the first locking support surface of the bolt to form unlocking. When the bolt and the barrel recoil together under the action of the recoil spring, the locking tenon of the barrel collides and contacts with the first locking inclined surface of the unlocking and locking seat, guiding the barrel to deflect in the opposite direction, so that the second locking support plane of the barrel is engaged with the first locking support plane of the bolt to form a rigid lock.

[0006] Furthermore, the rear end of the unlocking tenon has a second unlocking slope, and the front end of the locking tenon has a second locking slope. When the barrel and the bolt recoil together, the second unlocking slope touches the first unlocking slope of the unlocking and locking seat, so that the barrel is forced to deflect and unlocking is completed. When the bolt and the barrel return together, the second locking slope touches the first locking slope of the unlocking and locking seat, so that the barrel is forced to deflect in the opposite direction and locking is completed.

[0007] Furthermore, the opening and closing lock seat is fixedly connected to the pistol frame through a pin.

[0008] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0009] 1. The rigid locking mechanism of the present invention is provided with opening and locking tenons on the gun barrel, an opening and closing lock seat fixedly connected to the frame is provided below the gun barrel, and opening and locking inclined surfaces are provided on the opening and closing lock seat along the radial direction of the gun barrel. During the joint recoil of the bolt and the barrel, the opening and closing lock seat and the gun barrel opening tenon work together to guide the gun barrel to deflect, so that the rigidly buckled gun barrel and the locking support surface of the bolt are separated to form an unlocking. During the joint recoil of the bolt and the barrel, the locking inclined surface of the opening and closing lock seat guides the gun barrel to deflect in the opposite direction, so that the locking support surface of the gun barrel is buckled with the bolt to form a rigid lock;

[0010] 2. A pistol that fires high-powered pistol bullets can effectively seal the chamber during the high-pressure period of the internal ballistics, avoiding safety issues such as shell and chamber explosion caused by premature unlocking of the pistol. The bolt movement speed can be adjusted by adjusting the free movement distance of the bolt. The pistol's automatic movement is smooth and reliable, and the parts are evenly stressed, which is beneficial to improving the shooting accuracy, reliability and service life of the pistol. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a cross-sectional view of the locking mechanism of the present invention;

[0012] Figure 2 It is a structural schematic diagram of the locking mechanism of the present invention;

[0013] Figure 3 It is a schematic diagram of the structure of the bolt;

[0014] Figure 4 It is a schematic diagram of the structure of the gun barrel;

[0015] Figure 5 It is a structural diagram of the opening and closing lock seat;

[0016] Figure 6 It is a state diagram after the locking mechanism of the present invention is unlocked.

[0017] Reference numerals

[0018] In the attached figure, 1 is the bolt, 2 is the barrel, and 3 is the opening and closing lock seat.

[0019] 101 is the first locking support surface, 201 is the second locking support surface, 202 is the unlocking tenon,

[0020] 203 is a locking tenon, 204 is a second unlocking slope, 205 is a second locking slope,

[0021] 301 is the first unlocking slope, 302 is the first locking slope DETAILED DESCRIPTION

[0022] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, with the pistol shooting direction being the front.

[0023] See also Figure 1-Figure 6A barrel offset, rigid locking mechanism of a pistol comprises a bolt 1 and a barrel 2 sleeved in the bolt 1, wherein the bolt 1 is provided with a first locking support surface 101 in the middle, and the barrel 2 is provided with a second locking support surface 201 in the middle, and the bolt 1 and the barrel 2 are locked by the first locking support surface 101 and the second locking support surface 201, and an unlocking tenon 202 and a locking tenon 203 are provided at the bottom of the rear end of the barrel 2, wherein the unlocking tenon 202 is arranged in front of the locking tenon 203, and the rear end of the unlocking tenon 202 has a second unlocking inclined surface 204, and the front end of the locking tenon 203 has a second locking inclined surface 205, and further comprises an unlocking and locking seat 3, wherein the unlocking and locking seat 3 is arranged below the barrel 2 and is fixedly connected to the frame of the pistol by a pin, such as Figure 5 As shown, Figure 5 a in the middle is a schematic diagram of the structure of the opening and closing lock seat at -45° direction. Figure 5 b in the figure shows the structural diagram of the opening and closing lock seat at a positive 45° direction. Figure 5 Reference numeral c in the middle represents a schematic diagram of the structure of the unlocking and locking seat. As can be seen from the figure, the unlocking and locking seat 3 has a first unlocking slope 301 and a first locking slope 302 along the radial direction of the barrel. The first unlocking slope 301 is close to the second unlocking slope 204 of the unlocking tenon 202 of the barrel, and the first locking slope 302 is close to the second locking slope 205 of the locking tenon 203 of the barrel.

[0024] The initial state of the entire mechanism is as follows Figure 1 As shown, the lock holder is fixedly connected to the gun grip and can be regarded as a fixed part. The bolt and the barrel recoil as a whole under the action of the gunpowder energy after the bullet is fired. After moving for a certain distance, the second unlocking inclined surface on the unlocking tenon of the barrel contacts the first unlocking inclined surface of the lock holder. The first unlocking inclined surface forces the barrel to deflect and separate from the first locking support surface of the bolt, and the bolt continues to recoil (as shown in FIG. Figure 6 As shown in the figure, after completing the aforementioned series of actions, the gun recoils under the action of the recoil spring and contacts the barrel. During the continued recoil process, the first locking slope of the lock seat acts on the second locking slope of the barrel locking tenon to force the barrel to deflect in the opposite direction, and the second locking support surface of the barrel is buckled with the first locking support surface of the bolt to form a rigid connection, thereby completing the locking.

[0025] In addition, Figure 3 As shown, a recoil spring support is provided on the bolt, and a recoil spring is provided between the bolt and the frame to absorb energy when the bolt recoils, and to use stored energy to provide recoil energy when the bolt recoils.

[0026] In the barrel offset type and rigid locking mechanism of the pistol of the present invention, the pistol firing high-powered pistol bullets can effectively seal the chamber during the high pressure period of the internal ballistics, thereby avoiding safety problems such as shell explosion and chamber explosion caused by premature unlocking of the pistol, and the bolt movement speed can be adjusted by adjusting the free movement distance. The pistol automatic machine moves smoothly and reliably, and the machine parts are evenly stressed, which is beneficial to improving the shooting accuracy, reliability and service life of the pistol.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A barrel offset, rigid locking mechanism for a pistol, comprising a bolt and a barrel sleeved within the bolt, characterized in that: A first locking support surface is provided in the middle of the bolt, and a second locking support surface is provided in the middle of the barrel. The bolt and the barrel are locked by buckling together the first locking support surface and the second locking support surface. An unlocking tenon and a locking tenon are provided at the bottom of the rear end of the barrel. The unlocking tenon is placed in front of the locking tenon. An unlocking and locking seat is also included. The unlocking and locking seat is arranged below the barrel and fixedly connected to the bottom grip of the pistol. The unlocking and locking seat has a first unlocking inclined surface and a first locking inclined surface along the radial direction of the barrel. The first unlocking inclined surface is close to the unlocking tenon of the barrel, and the first locking inclined surface is close to the unlocking tenon of the barrel. The surface is close to the locking tenon of the barrel. When the bolt and the barrel recoil together, the unlocking tenon of the barrel collides and contacts with the first unlocking inclined surface of the unlocking and locking seat, guiding the barrel to deflect, so that the rigidly buckled second locking support surface of the barrel is separated from the first locking support surface of the bolt to form unlocking. When the bolt and the barrel return together under the action of the recoil spring, the locking tenon of the barrel collides and contacts with the first locking inclined surface of the unlocking and locking seat, guiding the barrel to deflect in the opposite direction, so that the second locking support plane of the barrel is buckled with the first locking support plane of the bolt to form a rigid lock.

2. A barrel offset, rigid locking mechanism for a pistol according to claim 1, characterized in that: The rear end of the unlocking tenon has a second unlocking slope, and the front end of the locking tenon has a second locking slope. When the gun barrel and the bolt recoil together, the second unlocking slope touches the first unlocking slope of the unlocking and locking seat, so that the gun barrel is forced to deflect and unlock. When the bolt and the gun barrel return together, the second locking slope touches the first locking slope of the unlocking and locking seat, so that the gun barrel is forced to deflect in the opposite direction and lock.

3. The barrel offset, rigid locking mechanism for a pistol according to claim 1, characterized in that: The opening and closing lock seat is fixedly connected to the pistol handle through a pin.

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