A new type of gun model that uses pre-stored compressed gas as power to achieve automatic retraction and firing

Abstract

The present invention relates to the technical field of gun models, and discloses a novel gun model that uses pre-stored compressed gas as a power source to achieve automatic reload and firing. The model comprises: a gun body, a slide slidably disposed on the upper portion of the gun body; a barrel assembly disposed at the front of the gun body; a reset assembly disposed at the lower portion of the barrel assembly; a middle frame assembly disposed at a rear position of the reset assembly; a trigger mounted on the middle frame assembly; a connecting rod assembly connected to the trigger; a circulation assembly disposed at the rear of the gun body and connected to the connecting rod assembly; an air cartridge assembly disposed between the connecting rod assembly and the circulation assembly, a BB (battery charge) feed assembly disposed on one side of the air cartridge assembly, and the BB (battery charge) feed assembly extending to the barrel assembly; and a piston assembly disposed within the slide and communicating with the air cartridge assembly. The present invention utilizes a novel structure to achieve automatic reload and firing, and is suitable for both small-scale and full-scale gun models.

Description

Technical Field

[0001] The present invention relates to the technical field of gun molds, in particular to a novel gun mold which uses pre-stored compressed gas as power to realize automatic retraction and firing. Background Art

[0002] Air guns are a general term for firearms that use pressurized gas as a power source to launch projectiles. They do not use gunpowder as a power source to launch projectiles, but rely on the pressure of compressed air or pre-stored gas to launch projectiles.

[0003] The existing gas-operated pistols on the market that use pre-stored gas as power to achieve automatic reloading and firing generally adopt the method of releasing the hammer to hit the gas valve to release the gas, and the gas drives the firing and the slide to reload and press the hammer down to reload; the hammer extends to the slide position, and the trigger is pulled, which drives the sear to release the hammer through the intermediate linkage mechanism, instantly opening the gas valve, releasing gas, and firing the projectile. The airtight space is formed under the principle of rear negative pressure, and the gas drives the slide to reload. At the same time, the slide presses down the hammer until it is caught by the sear, and the slide resets again and feeds the next bullet, and then waits, forming an airtight space.

[0004] However, in the use of small-scale (1:2) gun models, it is difficult to directly apply the above-mentioned hammer structure in order to realize the functions of firing and automatic retraction powered by pre-stored gas. The above-mentioned hammer structure is widely used in full-scale airguns. Even when using relatively low-pressure gas R134A, due to the small space of the small-scale gun model, when the above-mentioned hammer structure is applied, the smaller hammer spring is difficult to drive the smaller hammer to smoothly knock open the gas valve under gas pressure. Even if the hammer spring is strengthened, due to the smaller gas output and the extremely short hammer torsion arm, the force generated when the gas is released cannot effectively drive the slide to fully return to the chamber and press the hammer down until it is caught by the sear to form a cycle when driving the retraction; at the same time, the traditional automatic structure with a hammer requires gas to drive the slide back and press the hammer down to form a standby state at the same time, which will result in more force loss and require more gas consumption.

[0005] Therefore, improvements need to be made to this. Summary of the Invention

[0006] The technical problem solved by the present invention is to address the defects existing in the above-mentioned prior art and provide a new type of gun model that uses pre-stored compressed gas as power to achieve automatic retraction and firing. Its main purpose is to design a new type of retraction and firing structure and redesign the overall structure, so that it can be applied to small-scale gun models to achieve automatic retraction and firing, or can be used in full-scale air guns to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a new type of gun module that uses pre-stored compressed gas as power to achieve automatic reloading and firing, comprising: a gun body, a slide, the slide is slidably arranged on the upper part of the gun body; a barrel assembly, the barrel assembly is arranged at the front part of the gun body; a reset assembly, the reset assembly is arranged at the lower part of the barrel assembly, and the reset assembly is used to drive the slide to reset; the middle frame assembly, the middle frame assembly is arranged at the rear position of the reset assembly; the trigger, the trigger is mounted on the middle frame assembly; the connecting rod assembly, the connecting rod assembly is connected to the trigger on the middle frame assembly; the circulation assembly, the circulation assembly is arranged at the rear part of the gun body, and the circulation assembly is connected to the connecting rod assembly; the gas cartridge assembly, the gas cartridge assembly is arranged between the connecting rod assembly and the circulation assembly, and a BB bullet supply assembly is provided on one side of the gas cartridge assembly, and the BB bullet supply assembly extends to the barrel assembly; the piston assembly, the piston assembly is arranged in the slide, and the piston assembly is communicated with the gas cartridge assembly.

[0008] Furthermore, the circulation assembly includes a circulation housing, a secondary lever arranged in the circulation housing, a firing pin arranged on one side of the secondary lever, a main lever arranged on the lower side of the secondary lever, a main lever sear arranged on one side of the main lever, a shift rod sear arranged on one side of the main lever sear, and a shift rod arranged on the upper part of the circulation housing.

[0009] Furthermore, a first return spring, a second return spring and a third return spring are provided in the circulation housing; the first return spring is arranged on one side of the firing pin, and at least a portion of the first return spring is connected to the firing pin, the second return spring is arranged on one side of the main lever, and at least a portion of the second return spring is in contact with the main lever, the third return spring is arranged on one side of the main lever sear, and at least a portion of the third return spring is in contact with the main lever sear, and at least a portion of the third return spring is in contact with the shift rod sear.

[0010] Furthermore, the circulation assembly includes a gas cutting piece, which is arranged on one side of the circulation housing. The gas cutting piece includes a fourth return spring and a stop piece arranged on the fourth return spring, and at least a portion of the stop piece is in contact with the firing pin.

[0011] Furthermore, the middle frame assembly includes a force storage assembly, which includes force storage springs respectively arranged on both sides of the middle frame shell and a round ball arranged on the force storage spring, wherein the round ball is against the side wall of the trigger.

[0012] Furthermore, the piston assembly includes a hollow piston shell, a fifth return spring arranged at the front end of the piston shell, a negative pressure valve arranged at the end of the fifth return spring, a fixed shaft arranged at the piston shell, and a sixth return spring respectively connecting the fixed shaft and the tail of the slide; the air outlet of the air cartridge assembly is communicated with the piston shell, and the air outlet of the air cartridge assembly drives the BB to be ejected, wherein the negative pressure valve moves forward under the action of negative pressure, and the slide moves backward driven by the air outlet of the air cartridge assembly.

[0013] Furthermore, the barrel assembly includes a barrel mounting seat, a BB bullet launching tube arranged on the barrel mounting seat, and an outer barrel sleeved on the BB bullet launching tube, wherein the BB bullet launching tube is connected to the port of the piston housing.

[0014] Furthermore, the reset assembly includes a recoil rod group installed on the barrel mounting seat and a seventh reset spring mounted on the recoil rod group. At least a portion of the slide is placed on the recoil rod group, and the slide is reset by the action of the seventh reset spring.

[0015] Furthermore, the connecting rod assembly includes a connecting rod and an eighth return spring, one end of the eighth return spring is connected to the middle frame assembly, the eighth return spring is connected to one end of the connecting rod, and the other end of the connecting rod extends to the circulation assembly; the connecting rod has a hinged portion, a transverse portion connected to the hinged portion, a hook portion arranged on the transverse portion, and a convex portion arranged at the end of the transverse portion, wherein the hinged portion is arranged at the trigger position, the hook portion is connected to the eighth return spring, and the convex portion cooperates with the shift rod.

[0016] Furthermore, a first groove cooperating with the shift rod and a second groove cooperating with the gas cutting member are respectively provided on both sides of the interior of the slide, a limiting member is installed on the side wall of the slide, and a limiting groove cooperating with the limiting member is provided on the side wall of the piston housing.

[0017] Compared with the prior art, the beneficial effect of the present invention is that: by designing a new type of circulation assembly, in the loaded state, the trigger is driven by external force, and the main lever drives the secondary lever to rotate through the main lever sear of the circulation assembly, and the secondary lever rotates to drive the firing pin to trigger the gas valve. At the same time, the gas stop is lifted up to lock the firing pin to continuously supply gas, and the gas valve releases gas into the piston assembly, and the gas drives the BB bullet at the outlet of the end of the piston assembly to be fired through the launch tube, and then an airtight space is formed under the negative pressure principle, and then the slide outside the piston assembly expands backward under the gas pressure, pressing the lever down to re-engage the lever and the lever sear, pressing the gas stop down to unlock the firing pin and cut off the gas supply, and then the piston assembly is retracted into the slide assembly chamber, the slide is reset and the next projectile is fed, the trigger is released, and the next cycle continues, wherein the said force storage structure can make the force acting on the trigger accumulate, so that the gas valve can be quickly opened to ensure effective return to the chamber, wherein the said gas cut assembly can ensure continuous gas supply during the return to the chamber when using lower pressure gas, to ensure effective return to the chamber.

[0018] The above-mentioned new structure can be installed in a small-scale gun model, and uses gas as power to realize the mechanical characteristics of automatic return and firing of loading-firing-automatic reloading-refiring that simulates a real gun, providing a new automatic return and firing structure. Compared with the traditional hammer structure, the external force driving the trigger directly acts on the gas valve to open the gas valve. The system is small in size, there is no hammer to take up space, there is no pressure on the circulation group shell when the hammer is on standby, there is no hammer release to knock the circulation group shell to deform and damage it, and no firing will occur if the trigger is not pulled. The force required to press down the lever and cut the gas during return is greatly reduced compared to pressing down the hammer, and the gas loss during the cycle is lower. Under the same system size, there is more space available for the cylinder, which is more conducive to full return. In the small-scale (1:2) gun models / firearms with extremely limited space, in addition to gunpowder as the power, another new function with automatic retraction and firing is realized; the automatic operation mechanical characteristics of the real gun are simulated; compared with the gunpowder-powered small guns, it has a low kinetic energy limit, no lethality, and is safer; it is more economical to use environmentally friendly gas as the power; compared with the 1:1 full-scale simulation air guns on the market, it is small in size, has small modification potential, low kinetic energy, and is safer; compared with the small-scale gun models currently on the market, it is a new type of small-scale air gun that is more playable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0021] Figure 3 It is a structural diagram of the air box assembly.

[0022] Figure 4 It is a structural diagram of the air box assembly.

[0023] Figure 5 It is a schematic cross-sectional structural diagram of the present invention.

[0024] Figure 6 It is a structural diagram of the loop component.

[0025] Figure 7 This is a structural diagram of the loop component from another angle.

[0026] Figure 8 This is a schematic diagram of the internal structure of the loop component.

[0027] Figure 9 This is a schematic diagram of the internal structure of the loop component.

[0028] Figure 10 This is a schematic diagram of the internal structure of the loop component.

[0029] Figure 11 This is a schematic diagram of the internal structure of the loop component.

[0030] Figure 12 This is a schematic diagram of the internal structure of the loop component.

[0031] Figure 13 It is a structural diagram of the power storage component.

[0032] Figure 14 It is a structural diagram of the power storage component.

[0033] Figure 15 It is a schematic diagram of the cross-sectional structure of the piston assembly.

[0034] Figure 16 It is a structural diagram of the barrel assembly.

[0035] Figure 17 It is a structural diagram of the reset component.

[0036] Figure 18 Schematic diagram of the midframe assembly structure.

[0037] Figure 19 It is a structural diagram of the connecting rod assembly.

[0038] Figure 20 It is a structural diagram of the connecting rod.

[0039] Figure 21 It is a structural diagram of the slide.

[0040] Figure 22 It is a structural diagram of the slide.

[0041] Figure 1: 1. gun body; 2. slide; 3. barrel assembly; 4. reset assembly; 5. middle frame assembly; 6. trigger; 7. connecting rod assembly; 8. circulation assembly; 9. gas cartridge assembly; 10. BB bullet feeding assembly; 11. piston assembly; 12. circulation housing; 13. auxiliary lever; 14. firing pin; 15. main lever; 16. main lever sear; 17. lever sear; 18. lever; 19. first reset spring; 20. second reset spring; 21. third reset spring; 22. gas cutter; 23. fourth reset spring Position spring; 24. Stop member; 25. Storage assembly; 26. Storage spring; 27. Ball; 28. Piston housing; 29. Fifth return spring; 30. Negative pressure valve; 31. Fixed shaft; 32. Sixth return spring; 33. Barrel mounting seat; 34. BB bullet launching tube; 35. Outer barrel; 36. Return rod group; 37. Seventh return spring; 38. Connecting rod; 39. Eighth return spring; 40. Hinge; 41. Horizontal part; 42. Hook; 43. Protrusion; 44. First groove; 45. Second groove. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" or "multiple" means two or more, unless otherwise specifically defined. In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. A person skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them. Furthermore, "above," "above," and "above" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher level than the second feature. "Below," "below," and "below" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a lower level than the second feature.

[0044] In view of the technical problems recorded in the background technology, such as Figure 1-5As shown, a new type of gun module that uses pre-stored compressed gas as power to achieve automatic reloading and firing is provided, comprising: a gun body 1, a slide 2, the slide 2 being slidably arranged on the upper part of the gun body 1; a barrel assembly 3, the barrel assembly 3 being arranged at the front part of the gun body 1; a reset assembly 4, the reset assembly 4 being arranged at the lower part of the barrel assembly 3, the reset assembly 4 being used to drive the slide 2 to reset; a middle frame assembly 5, the middle frame assembly 5 being arranged at the rear position of the reset assembly 4; a trigger 6, the trigger 6 being installed on the middle frame assembly 5; a connecting rod assembly 7 ... trigger 6, the trigger 6 being installed on the middle frame assembly 5; a trigger 6, the trigger 6 being installed on the middle frame assembly 5; a trigger 6, the trigger 6 being installed on the middle frame assembly 5; a trigger 6, the trigger 6 being installed on the middle frame assembly 5; a trigger 6, the trigger 6 being installed on the middle frame assembly 5; a trigger 6, the trigger 6 being installed on the middle frame assembly 5; a trigger 6, the trigger 6 The connecting rod assembly 7 is connected to the trigger 6 of the middle frame assembly 5; the circulation assembly 8, the circulation assembly 8 is arranged at the rear of the gun body 1, and the circulation assembly 8 is connected to the connecting rod assembly 7; the gas cartridge assembly 9, the gas cartridge assembly 9 is arranged between the connecting rod assembly 7 and the circulation assembly 8, and a BB bullet supply assembly 10 is provided on one side of the gas cartridge assembly 9, and the BB bullet supply assembly 10 extends to the barrel assembly 3; the piston assembly 11, the piston assembly 11 is arranged in the slide 2, and the piston assembly 11 is communicated with the gas cartridge assembly 9.

[0045] Among them, the circulation assembly 8 includes a circulation housing 12, a secondary lever 13 arranged in the circulation housing 12, a firing pin 14 arranged on one side of the secondary lever 13, a main lever 15 arranged on the lower side of the secondary lever 13, a main lever sear 16 arranged on one side of the main lever 15, a shift rod sear 17 arranged on one side of the main lever sear 16, and a shift rod 18 arranged on the upper part of the circulation housing 12.

[0046] In view of the problems existing in the background art, the traditional hammer-type recoil firing structure used in full-scale gun models has more sufficient installation space and can be designed with a sufficient hammer lever arm length. The hammer opens the gas valve and fires, and then the slide recoils and presses the hammer down to be caught by the sear again, achieving automatic recoil and reloading. However, in small-scale (1:2) gun models, due to the extremely small installation space, it is difficult to directly install and use the traditional hammer structure. At the same time, the smaller hammer spring cannot easily drive the smaller hammer to successfully knock open the gas valve under gas pressure. Even if the hammer spring is strengthened, due to the smaller gas output and the extremely short hammer torque arm, the force generated when the gas is released cannot effectively drive the slide to fully recoil and press the hammer down until it is caught by the sear, thus forming a cycle.

[0047] In this regard, the above-mentioned technical solution is adopted, and its operation process is explained below: the piston assembly 11 cooperates with the slide 2 to form a cylinder structure, the barrel assembly 3 is used to launch BB bullets, the reset assembly 4 is used to drive and reset the slide, the middle frame assembly 5 is used to install the trigger and the reset assembly 4, the circulation assembly 8 is used to realize automatic return and firing, the gas box assembly 9 mainly includes a gas box for storing compressed gas and an exhaust valve. In the loaded state, the lever sear 17 hooks the lever 18 to form a standby state. When the trigger 6 is pulled to a certain position, the end of the connecting rod assembly 7 contacts the main lever sear 16, and the main lever 15 is linked and drives the auxiliary lever 13 in the circulation assembly 8. The auxiliary lever 13 presses down the firing pin 14, and the firing pin 14 pre-presses the exhaust valve in the gas box assembly 9 to a certain position and stands by. Continue to pull the trigger 6, and the trigger 6 can continue to move backward, and then the main lever 15 can continue to drive the auxiliary lever 13 Then, the piston assembly 11 is retracted into the chamber of the slide 2, the slide 2 is reset and the next projectile is fed into the chamber, the trigger 6 is released, and the next cycle is continued.

[0048] like Figure 6-12 As shown, a first return spring 19, a second return spring 20 and a third return spring 21 are provided in the circulation housing 12; the first return spring 19 is arranged on one side of the firing pin 14, and at least a portion of the first return spring 19 is connected to the firing pin 14, the second return spring 20 is arranged on one side of the main lever 15, and at least a portion of the second return spring 20 is in contact with the main lever 15, the third return spring 21 is arranged on one side of the main lever sear 16, and at least a portion of the third return spring 21 is in contact with the main lever sear 16, and at least a portion of the third return spring 21 is in contact with the shift rod sear 17.

[0049] The trigger 6 inertially moves to a certain position to cut off the hooking state of the shift rod sear 17 and the shift rod 18, the shift rod 18 resets upward, the head of the connecting rod 38 moves upward, the main lever 15 and the main lever sear 16 are reset under the action of the second reset spring 20, the shift rod sear 17 is reset under the action of the third reset spring 21, the firing pin 14 and the auxiliary lever 13 are reset under the rebound action of the first reset spring 19 and the gas box assembly 9, and are ready to be loaded again; then when the trigger 6 resets forward, the end of the connecting rod 38 presses down the main lever sear 16 to move forward smoothly to the standby state, during which the main lever sear 16 is reset under the action of the third reset spring 21, among which the first reset spring 19, the second reset spring 20 and the third reset spring 21 can select appropriate shapes according to actual usage.

[0050] The circulation assembly 8 includes a gas cutting piece 22, which is arranged on one side of the circulation housing 12. The gas cutting piece 22 includes a fourth return spring 23 and a stop piece 24 arranged on the fourth return spring 23. At least a portion of the stop piece 24 is in contact with the firing pin 14.

[0051] The gas cutting piece 22 is used to limit the firing pin 14 to ensure that the gas outlet valve is in an open state to form a stable gas supply. Its working process is that when in use, when the firing pin 14 presses the gas outlet valve of the gas box assembly 9, the stop piece 24 of the gas cutting piece 22 moves upward under the action of the fourth reset spring 23. The position of the stop piece 24 limits the position of the firing pin 14, forming a stable airflow output. Under the reset action of the slide 2, the stop piece 24 is pressed and reset, the limit of the stop piece 24 on the firing pin 14 is released, and the gas output is cut off.

[0052] refer to Figure 13-14 As shown, the middle frame assembly 5 includes a force storage assembly 25, and the force storage assembly 25 includes force storage springs 26 respectively arranged on both sides of the middle frame shell and a ball 27 arranged on the force storage spring 26, wherein the ball 27 is against the side wall of the trigger 6.

[0053] In actual use, due to the driving method of the existing gun model, the trigger is directly pulled over the resistance structure to drive the firing pin to instantly trigger the outlet valve in the gas cartridge assembly. In this regard, in this technical solution, a new type of force storage assembly structure is provided, and its use process is as follows: a notch is set on the side wall of the trigger 6. During the initial pulling process of the trigger 6, it is a pre-compression operation. During the continued pulling process, due to the restriction of the position of the notch of the trigger 6, the trigger 6 needs to apply a greater force, forcing the side walls of the trigger 6 to press the ball 27, compressing the force storage spring 26, and the trigger 6 passes over the ball 27, further driving the connecting rod 38 to trigger the outlet valve, thereby achieving the effect of instantly triggering the outlet valve.

[0054] like Figure 15As shown, the piston assembly 11 includes a hollow piston housing 28, a fifth return spring 29 arranged at the front end of the piston housing 28, a negative pressure valve 30 arranged at the end of the fifth return spring 29, a fixed shaft 31 arranged at the piston housing 28, and a sixth return spring 32 respectively connecting the fixed shaft 31 and the tail of the slide 2; the air outlet of the air cartridge assembly 9 is communicated with the piston housing 28, and the air discharge of the air cartridge assembly 9 drives the BB to be ejected, wherein the negative pressure valve 30 moves forward under the action of negative pressure, and the slide 2 moves backward through the air discharge drive of the air cartridge assembly 9.

[0055] In this technical solution, a piston assembly 11 and a slide 2 are used to form a cylinder structure, and its specific usage process is as follows: when the outlet valve of the gas cartridge assembly 9 is opened, the compressed gas enters the barrel assembly 3 and ejects the BB. Under the action of negative pressure, the negative pressure valve 30 moves forward to block the barrel assembly 3, so that the compressed gas enters from the inside of the piston housing 28, and the slide 2 expands and moves backward under the gas pressure. At this time, the sixth return spring 32 is in a stretched state, and then, under the action of the sixth return spring 32, the piston housing 28 is driven to reset to the position of the slide 2. At the same time, the BB bullet on the gas cartridge assembly and the BB bullet of the supply assembly 10 are loaded.

[0056] Furthermore, the barrel group 3 includes a barrel mounting seat 33 , a BB bullet launching tube 34 provided on the barrel mounting seat 33 , and an outer barrel 35 sleeved on the BB bullet launching tube 34 , wherein the BB bullet launching tube 34 is connected to the port of the piston housing 12 .

[0057] like Figure 16 As shown, the barrel assembly 3 is used to launch BB bullets, wherein the BB bullet launching tube 34 is a hollow structure, and the BB bullet launching tube 34 is connected to the end of the piston housing 28. Then, when the piston housing 28 moves backward, the BB bullet feeding assembly 10 of the air box assembly 9 loads the BB bullet into the chamber.

[0058] like Figure 17 As shown, the reset assembly 4 includes a recoil rod group 36 installed on the barrel mounting seat 33 and a seventh reset spring 37 mounted on the recoil rod group 36. At least a portion of the slide 2 is placed on the recoil rod group 36, and the slide 2 is reset by the action of the seventh reset spring 37.

[0059] In practice, the reset assembly 4 is used to reset the slide 2, and a seventh reset spring 37 is sleeved on the return rod group 4. When the slide 2 moves backward, the slide 2 moves forward and resets under the action of the seventh reset spring 37.

[0060] refer to Figure 18-20As shown, the connecting rod assembly 7 includes a connecting rod 38 and an eighth return spring 39, one end of the eighth return spring 39 is connected to the middle frame assembly 5, the eighth return spring 39 is connected to one end of the connecting rod 38, and the other end of the connecting rod 38 extends to the circulation assembly 8; the connecting rod 38 has a hinge portion 40, a transverse portion 41 connected to the hinge portion 40, a hook portion 42 arranged on the transverse portion 41 and a convex portion 43 arranged at the end of the transverse portion 41, wherein the hinge portion 40 is arranged at the trigger 6 position, the hook portion 42 is connected to the eighth return spring 39, and the convex portion 43 cooperates with the shift rod 18.

[0061] The above is a feasible structure of the connecting rod assembly 7. The hinge portion 40 of the connecting rod 38 extends to the position of the trigger 6. When the trigger 6 is pulled, the connecting rod 38 moves, and the protrusion 43 of the connecting rod 38 moves along the guide curve provided on the lower edge of the shift lever 18. The end of the connecting rod 38 collides with the main lever sear 16. Under the action of the main lever sear 16, the main lever 15 is driven to rotate. The main lever 15 rotates to drive the secondary lever 13, and then the secondary lever 13 drives the firing pin 14. Under the inertia of the trigger 6, the connecting rod 38 continues to move backward, pushing the main lever sear 16 to push the shift lever sear 17. The lever 18 is released from the hooked state, the lever 18 moves upward, the end of the connecting rod 38 moves upward, and the contact with the main lever sear 16 is released, the main lever sear 16 and the main lever 15 are reset, and when the slide 2 presses down the lever 18 and is hooked by the lever sear 17 again, under the action of the eighth reset spring 39, the connecting rod 38 is reset forward; at this time, if the lever 18 is not pressed down to the lever sear 17 and is hooked, the front end of the connecting rod 38 is hooked with the right side protrusion of the circulation housing 12, forming a rear locked state of the trigger 6 and the connecting rod 38, and the slide 2 needs to be pulled backward to load and unlock again.

[0062] Specifically, if Figure 21-22 As shown, a first groove 44 cooperating with the shift rod 18 and a second groove 45 cooperating with the gas cutting member 22 are respectively provided on both sides of the interior of the slide 2, a limiting member 46 is installed on the side wall of the slide 2, and a limiting groove 47 cooperating with the limiting member 46 is provided on the side wall of the piston housing 28.

[0063] A first groove 44 and a second groove 45 are respectively provided on both sides of the slide. The first groove 44 is used to press down the upwardly moving lever 18, and the second groove 45 is used to press down the stop 24 of the gas cutting member 22. When in use, due to pulling the trigger 6, the stop 24 of the gas cutting member 22 locks the firing pin 14. At the same time, as the trigger 6 continues to move, the lever 18 moves upward. Furthermore, through the first groove 44 and the second groove 45 designed in the slide 2, the ends of the first groove 44 and the second groove 45 are set to a structural form from shallow to deep. Therefore, when the slide 2 moves backward under the action of compressed gas, the first groove 44 and the second groove 45 press down the lever 18 and the stop 24 respectively. When the lever 28 is pressed down, the lever 18 is again in a hooked state with the lever sear 17. When the stop 24 is pressed down, the limiting state of the stop 24 on the firing pin 14 is released.

[0064] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A new type of gun model that uses pre-stored compressed gas as power to achieve automatic reloading and firing, characterized by: include: Gun body, a slide, the slide being slidably disposed on the upper portion of the gun body; a barrel assembly, the barrel assembly being arranged at the front portion of the gun body; A reset assembly, the reset assembly being provided at the lower portion of the barrel assembly and being used to drive the slide to reset; a middle frame assembly, the middle frame assembly being arranged at a rear position of the reset assembly; a trigger, the trigger being mounted on the middle frame assembly; a connecting rod assembly, the connecting rod assembly being connected to the trigger on the middle frame assembly; a circulation assembly, the circulation assembly being disposed at the rear of the gun body and connected to the connecting rod assembly; An air cartridge assembly is disposed between the connecting rod assembly and the circulation assembly. A BB bullet supply assembly is provided on one side of the air cartridge assembly, and the BB bullet supply assembly extends to the barrel assembly. The air cartridge assembly mainly includes an air cartridge for storing compressed gas and an air outlet valve. A piston assembly, the piston assembly being disposed in the slide cylinder and communicating with the air cartridge assembly; The circulation assembly includes a circulation housing, a secondary lever arranged in the circulation housing, a firing pin arranged on one side of the secondary lever, a main lever arranged on the lower side of the secondary lever, a main lever sear arranged on one side of the main lever, a shift rod sear arranged on one side of the main lever sear and a shift rod arranged on the upper part of the circulation housing; in the loaded state, the shift rod sear hooks the shift rod to form a standby state, when the trigger is pulled to a certain position, the end of the connecting rod assembly contacts the main lever sear, the main lever is linked and drives the secondary lever in the circulation assembly, the secondary lever presses down the firing pin, the firing pin pre-presses the outlet valve in the gas cartridge assembly to a certain position and waits, continues to pull the trigger, the trigger is able to continue to move backward, and then the main lever is able to continue to drive the secondary lever, the secondary lever is able to continue to press down the firing pin, the firing pin continues to move, the firing pin is able to open the outlet valve in the gas cartridge assembly, the pre-stored gas in the gas cartridge assembly is released, and the BB bullet at the end outlet of the piston assembly is driven to be fired through the barrel assembly position.

2. The novel gun model according to claim 1, which uses pre-stored compressed gas as power to achieve automatic retraction and firing, is characterized by: A first return spring, a second return spring and a third return spring are provided in the circulation housing; the first return spring is arranged on one side of the firing pin, and at least a portion of the first return spring is connected to the firing pin; the second return spring is arranged on one side of the main lever, and at least a portion of the second return spring is in contact with the main lever; the third return spring is arranged on one side of the main lever sear, and at least a portion of the third return spring is in contact with the main lever sear; and at least a portion of the third return spring is in contact with the shift rod sear.

3. The novel gun model according to claim 2, which uses pre-stored compressed gas as power to achieve automatic retraction and firing, is characterized in that: The circulation assembly includes a gas cutting piece, which is arranged on one side of the circulation housing. The gas cutting piece includes a fourth return spring and a stop piece arranged on the fourth return spring, and at least a portion of the stop piece is in contact with the firing pin.

4. The novel gun model according to claim 3, which uses pre-stored compressed gas as power to achieve automatic retraction and firing, is characterized in that: The middle frame assembly includes a force storage assembly, which includes force storage springs respectively arranged on both sides of the shell of the middle frame assembly and a round ball arranged on the force storage spring, wherein the round ball is against the side wall of the trigger.

5. The novel gun model according to claim 4, which uses pre-stored compressed gas as power to achieve automatic retraction and firing, is characterized in that: The piston assembly includes a hollow piston shell, a fifth return spring arranged at the front end of the piston shell, a negative pressure valve arranged at the end of the fifth return spring, a fixed shaft arranged at the piston shell, and a sixth return spring respectively connecting the fixed shaft and the tail of the slide; the air outlet of the air cartridge assembly is communicated with the piston shell, and the air outlet of the air cartridge assembly drives the BB to be ejected, wherein the negative pressure valve moves forward under the action of negative pressure, and the slide is driven to move backward by the air outlet of the air cartridge assembly.

6. The novel gun model according to claim 5, which uses pre-stored compressed gas as power to achieve automatic retraction and firing, is characterized in that: The barrel assembly includes a barrel mounting seat, a BB bullet launching tube arranged on the barrel mounting seat, and an outer barrel sleeved on the BB bullet launching tube, wherein the BB bullet launching tube is connected to the port of the piston housing.

7. The novel gun model according to claim 6, which uses pre-stored compressed gas as power to achieve automatic retraction and firing, is characterized in that: The reset assembly includes a recoil rod group installed on the barrel mounting seat and a seventh reset spring mounted on the recoil rod group. At least a portion of the slide is placed on the recoil rod group, and the slide is reset by the action of the seventh reset spring.

8. The novel gun model according to claim 7, which uses pre-stored compressed gas as power to achieve automatic retraction and firing, is characterized in that: The connecting rod assembly includes a connecting rod and an eighth return spring, one end of the eighth return spring is connected to the middle frame assembly, the eighth return spring is connected to one end of the connecting rod, and the other end of the connecting rod extends to the circulation assembly; the connecting rod has a hinged portion, a transverse portion connected to the hinged portion, a hook portion arranged on the transverse portion, and a convex portion arranged at the end of the transverse portion, wherein the hinged portion is arranged at the trigger position, the hook portion is connected to the eighth return spring, and the convex portion cooperates with the shift rod.

9. The novel gun model according to claim 8, which uses pre-stored compressed gas as power to achieve automatic retraction and firing, is characterized in that: A first groove cooperating with the shift rod and a second groove cooperating with the gas cutting member are respectively provided on both sides of the interior of the slide cylinder. A limiting member is installed on the side wall of the slide cylinder, and a limiting groove cooperating with the limiting member is provided on the side wall of the piston housing.

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