Electric air gun gearbox

Abstract

The utility model discloses an electric air gun gearbox, and particularly relates to the field of simulated shooting accessories, the electric air gun gearbox comprises a gun shell main body composed of a gun shell I and a gun shell II, the gun shell I and the gun shell II are fixed through a fixing bolt, an inner cavity of the gun shell main body is fixedly provided with a cylinder sleeve and a fixing column, the fixing column is sleeved with a power spring, and the power spring is connected with the cylinder sleeve. An air cylinder piston is arranged between the end, away from the fixing column, of the power spring and the air cylinder sleeve, and the power spring is sleeved with the air cylinder piston. By means of the design of the split type sleeve and the split type air gun pipe, noise of airflow resonance generated when high-speed airflow in the electric air gun rapidly flows through a narrow channel such as the air gun pipe or a necking opening in a closed air cylinder sleeve space is effectively prevented, and the explosion reed is additionally arranged and can explode under the acting force of the high-speed airflow. The simulation degree in the design training aspect is improved, automatic movement is achieved, percussion is achieved, and the sense of reality of percussion can be felt in the using process.

Description

Technical Field

[0001] This utility model relates to the field of simulated shooting accessories technology, and more specifically, to an electric air gun gearbox. Background Technology

[0002] Air guns, as a type of simulated shooting device, are widely used in competitive sports, military training, and recreational fields. Their core power system has undergone several technological iterations: early air guns primarily relied on spring pistons or compressed gas (such as CO2 canisters) to drive the projectiles, but such systems suffered from drawbacks such as unstable energy output, cumbersome operation (e.g., manually compressing the spring), and sensitivity to ambient temperature (gas pressure is affected by temperature). With the popularization of electric technology, automatic electric air guns have gradually become mainstream. Their core component, the "gearbox," uses a motor to drive a gear set to compress springs or cylinders, enabling continuous projectile firing, significantly improving shooting efficiency and user experience.

[0003] However, existing electric air rifle gearboxes suffer from inadequate noise and vibration control. The noise generated by gear meshing impact, mechanical collisions during spring release, and high-speed motor operation severely impacts the user experience. This is especially true during high-speed shooting training, where noise from airflow and leakage further diminishes the perception of continuous shooting, resulting in a loss of realism. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide an electric air gun gearbox. The technical problem to be solved by this invention is: how to improve the realism of using electric air gun gearboxes in simulation and enhance training perception.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric air gun gearbox, comprising a gun body consisting of a gun shell I and a gun shell II, wherein the gun shell I and gun shell II are fixed together by fixing bolts; a cylinder liner and a fixing post are fixedly provided in the inner cavity of the gun body; a power spring is sleeved on the outside of the fixing post; a cylinder piston is provided between the end of the power spring away from the fixing post and the cylinder liner; the cylinder piston is sleeved on the outside of the power spring; a control switch, a drive assembly, and a transmission gear set are also provided in the inner cavity of the gun body; the transmission gear set includes a bevel gear, a main gear, and a half-gear; the bevel gear and the half-gear mesh with the main gear for transmission; the half-gear meshes with the outer wall of the cylinder piston for transmission; the cylinder liner includes a split sleeve and a split air gun barrel; a detonation spring is filled inside the split air gun barrel.

[0006] In a preferred embodiment, the split-type sleeve includes a combined outer cylinder and a barrel connector, and a shock-absorbing sealing gasket is snapped into the connection between the combined outer cylinder and the barrel connector; the split-type air gun barrel includes an inner barrel and an outer barrel, the outer barrel is inserted into the inner barrel, and the tail end of the inner barrel is snapped into the center of the barrel connector; the detonation spring is located at the end of the inner barrel away from the barrel connector, and one end of the detonation spring is snapped into the inner side of the outer barrel, and a movable groove with a width greater than the thickness of the detonation spring is formed on the inner side of the outer barrel.

[0007] In a preferred embodiment, the drive assembly includes a high-speed motor, the output end of which is fixedly provided with a bevel gear, which meshes with a bevel gear for transmission; a central shaft is fixedly provided at the center of the bevel gear, the main gear, and the half gear.

[0008] In a preferred embodiment, both gun housing I and gun housing II include a main housing. A snap-fit ​​groove is provided at the connection between the main housing and the cylinder liner. A limiting protrusion is also fixedly provided on the inner wall of the main housing. An installation groove is provided at the connection between the inner wall of the main housing and the end of the central shaft.

[0009] In a preferred embodiment, the cylinder piston includes a main tube with an inner diameter larger than the outer diameter of the power spring. A plug protrusion is fixedly provided at one end of the main tube, and the outer diameter of the plug protrusion is equal to the inner diameter of the combined outer tube. A sealing gasket is fixedly provided on the outer wall of the plug protrusion. Transverse positioning grooves are fixedly provided on both outer walls of the main tube. The transverse positioning grooves are aligned with and slidably connected to the limiting protrusions. A meshing tooth is provided transversely on the bottom outer wall of the main tube, and the half gear meshes with the meshing tooth for transmission.

[0010] In a preferred embodiment, the high-speed motor is externally driven by a power supply and is electrically connected to a control switch, which controls the starting and stopping of the high-speed motor.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] This utility model, through the design of a split sleeve and a split air gun barrel, effectively prevents the noise generated by airflow resonance when the high-speed airflow in the electric air gun flows rapidly through narrow channels or constrictions such as the air gun barrel in the closed cylinder liner space. In addition, the added popping spring can form a sound similar to a gunshot under the action of high-speed airflow, which improves the simulation degree in design training. It not only realizes the automatic movement to achieve firing, but also allows users to feel the realism of firing during use.

[0013] This invention combines a drive assembly with a transmission gear set. A high-speed motor operates, and the gear engagement of the transmission gear set achieves a speed reduction and torque increase effect. Because only half of the gear has teeth, the cylinder piston loses the engagement limit lock of the half gear and is released. Under the action of the rebound force of the power spring, the gas is rapidly compressed inside the combined outer cylinder, thus generating high-pressure, high-speed gas. This completes one gas compression action. After a single compression action is completed, the power spring and cylinder piston return to the position shown in the figure, providing the positional requirement for recharging again, forming a continuous firing training action. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model (excluding the gun casing I).

[0016] Figure 3 This is a schematic diagram of the gun casing II structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the combined structure of the drive component and transmission gear set of this utility model.

[0018] Figure 5 This is a cross-sectional view of the cylinder liner of this utility model.

[0019] Figure 6 This is a schematic diagram of the cylinder piston structure of this utility model.

[0020] Figure 7 This is a schematic diagram of the air gun charging structure of this utility model.

[0021] Figure 8 This is a schematic diagram of the air gun energy release structure of this utility model.

[0022] The attached figures are labeled as follows: 1 Gun casing I, 2 Gun casing II, 3 Fixing bolt, 4 Control switch, 5 Drive assembly, 6 Transmission gear set, 7 Fixing column, 8 Power spring, 9 Cylinder liner, 10 Cylinder piston;

[0023] 51 High-speed motor; 52 Bevel gear;

[0024] 61. Bevel gear; 62. Main gear; 63. Half gear; 64. Central shaft.

[0025] 91 Combined outer barrel, 92 Barrel connector, 93 Shock-absorbing sealing gasket, 94 Inner barrel, 95 Outer barrel, 96 Explosion spring;

[0026] 101 Main tube, 102 Plug, 103 Sealing gasket, 104 Lateral positioning groove, 105 Engaging teeth;

[0027] 01 Main housing, 02 Snap-fit ​​groove, 03 Limiting protrusion, 04 Mounting groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides, for example Figure 1-2 The electric air gun gearbox shown includes a main body consisting of a gun housing I1 and a gun housing II2. The gun housing I1 and gun housing II2 are fixed together by fixing bolts 3. A cylinder liner 9 and a fixing post 7 are fixedly installed inside the main body of the gun housing. A power spring 8 is sleeved on the outside of the fixing post 7. A cylinder piston 10 is installed between the end of the power spring 8 away from the fixing post 7 and the cylinder liner 9. The cylinder piston 10 is sleeved on the outside of the power spring 8. A control switch 4, a drive assembly 5, and a transmission gear set 6 are also provided inside the main body of the gun housing. This electric air gun gearbox is a component used to generate high-pressure, high-speed gas in an electric air gun and is a major component of the electric air gun. It contains a transmission gear set 6 consisting of multiple metal reduction gears. Driven by a high-speed motor 51, it can complete more than ten gas compression actions per second.

[0030] like Figure 2 and 4 As shown, the transmission gear set 6 includes a bevel gear 61, a main gear 62, and a half-gear 63. Both the bevel gear 61 and the half-gear 63 mesh with the main gear 62 for transmission, and the half-gear 63 meshes with the outer wall of the cylinder piston 10 for transmission. The drive assembly 5 includes a high-speed motor 51, which is externally connected to a drive power source and electrically connected to a control switch 4. The control switch 4 controls the start and stop of the high-speed motor 51. A bevel gear 52 is fixedly provided at the output end of the high-speed motor 51, and the bevel gear 52 meshes with the bevel gear 61 for transmission. A central shaft 64 is fixedly provided at the center of each of the bevel gear 61, the main gear 62, and the half-gear 63.

[0031] like Figure 6The cylinder piston 10 includes a main pipe 101, the inner diameter of which is larger than the outer diameter of the power spring 8. A plug protrusion 102 is fixedly provided at one end of the main pipe 101. The outer diameter of the plug protrusion 102 is equal to the inner diameter of the combined outer cylinder 91. A sealing gasket 103 is fixedly provided on the outer wall of the plug protrusion 102. A transverse positioning slide groove 104 is fixedly provided on both outer walls of the main pipe 101. The transverse positioning slide groove 104 is aligned with and slidably connected to the limiting protrusion 03. A meshing tooth 105 is provided transversely on the bottom outer wall of the main pipe 101. The half gear 63 meshes with the meshing tooth 105 for transmission.

[0032] Specifically, after the high-speed motor 51 is powered on and started by the control switch 4, it drives the bevel gear 61, main gear 62, and half-gear 63 to rotate via the bevel gear 52. Through the gear engagement of the transmission gear set 6, a speed reduction and torque increase effect is achieved. After the half-gear 63 rotates to a certain angle, it drives the cylinder piston 10 to move backward. The fixed column 7 restricts the position of the power spring 8, causing the length of the power spring 8 to begin to compress (the specific operation is as follows...). Figure 7 (The arrow indicates this). Because only half of the gear 63 has teeth, when the last tooth of the half gear 63 disengages from the last tooth of the meshing tooth 105 fixed on the bottom wall of the cylinder piston 10, the cylinder piston 10 loses the meshing limit lock of the half gear 63 and is released. Under the action of the rebound force of the power spring 8, the lateral positioning groove 104 and the limiting protrusion 03 ensure lateral movement, causing the cylinder piston 10 to quickly rush into the inner cavity of the cylinder liner 9. Because the combination of the plug protrusion 102 and the sealing gasket 103 is equal to the inner diameter of the combined outer cylinder 91, the gas can be quickly compressed in the combined outer cylinder 91, thereby generating high-pressure and high-speed gas, thus completing one gas compression action (such as...). Figure 8 As shown), after a single compression action, the positions of the power spring 8 and the cylinder piston 10 return to normal. Figure 7 The position, once again, provides the necessary posture for charging.

[0033] like Figure 5 The cylinder liner 9 includes a split sleeve and a split air gun barrel. The split air gun barrel is filled with a detonation spring 96. The split sleeve includes a combined outer cylinder 91 and a barrel connector 92. A shock-absorbing sealing washer 93 is snapped into place at the connection between the combined outer cylinder 91 and the barrel connector 92. The split air gun barrel includes an inner barrel 94 and an outer barrel 95. The outer barrel 95 is inserted into the inner barrel 94, and the tail end of the inner barrel 94 is snapped into the center of the barrel connector 92. The detonation spring 96 is located at the end of the inner barrel 94 away from the barrel connector 92, and one end of the detonation spring 96 is snapped into the outer barrel 95. A movable groove with a width greater than the thickness of the detonation spring 96 is opened on the inner side of the outer barrel 95.

[0034] like Figure 3Both gun casing I1 and gun casing II2 include a main casing 01. A snap-fit ​​groove 02 is provided at the connection between the main casing 01 and the cylinder liner 9. A limiting protrusion 03 is also fixedly provided on the inner wall of the main casing 01. An installation groove 04 is provided at the connection between the inner wall of the main casing 01 and the end of the central shaft 64.

[0035] like Figure 5 and 8 As shown, the specific implementation method is as follows: When the cylinder piston 10 rapidly compresses the gas in the combined outer cylinder 91, the separate design of the combined outer cylinder 91 and the gun barrel connector 92 avoids the resonance that easily occurs in a one-piece pipe or container, which would lead to increased noise. The sealing protection of the shock-absorbing sealing gasket 93 prevents unstable vibration caused by high-pressure gas passing through the cylinder liner 9, thereby reducing noise. The design of the separate sleeve and the separate air gun barrel effectively prevents the noise of airflow resonance when the high-speed airflow in the electric air gun flows rapidly through narrow channels or constrictions such as the air gun barrel in the closed space of the cylinder liner 9. In addition, the added popping spring 96 can form a sound similar to a gunshot under the action of high-speed airflow, which improves the simulation degree in design training. It not only realizes the automatic movement to achieve firing, but also allows users to feel the realism of firing during use.

[0036] Finally, several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may change. Second, the accompanying drawings of the embodiments disclosed in this utility model only involve structures relevant to the embodiments disclosed in this utility model. Other structures can refer to common designs. Where there is no conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally, the above descriptions are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electric air gun gearbox, comprising a gun body consisting of a gun housing I (1) and a gun housing II (2), wherein the gun housing I (1) and the gun housing II (2) are fixed together by fixing bolts (3), characterized in that: The inner cavity of the gun casing is fixedly provided with a cylinder liner (9) and a fixing post (7). A power spring (8) is sleeved on the outside of the fixing post (7). A cylinder piston (10) is provided between the end of the power spring (8) away from the fixing post (7) and the cylinder liner (9). The cylinder piston (10) is sleeved on the outside of the power spring (8). The gun casing body is also equipped with a control switch (4), a drive assembly (5), and a transmission gear set (6) in its inner cavity. The transmission gear set (6) includes a bevel gear (61), a main gear (62) and a half gear (63). The bevel gear (61) and the half gear (63) are both meshed with the main gear (62) for transmission, and the half gear (63) is meshed with the outer wall of the cylinder piston (10) for transmission. The cylinder liner (9) includes a split sleeve and a split air gun barrel, wherein the split air gun barrel is filled with a detonation reed (96).

2. The electric air gun gearbox according to claim 1, characterized in that: The split-type sleeve includes a combined outer cylinder (91) and a gun barrel connector (92), and a shock-absorbing sealing gasket (93) is snapped into place at the connection between the combined outer cylinder (91) and the gun barrel connector (92). The split-type air gun barrel includes an inner barrel (94) and an outer barrel (95). The outer barrel (95) is inserted into the inner barrel (94), and the tail end of the inner barrel (94) is snapped into the center of the barrel connector (92). The detonation spring (96) is located at the end of the inner barrel (94) away from the barrel connector (92), and one end of the detonation spring (96) is engaged with the inner barrel (95). The inner side of the outer barrel (95) has a movable groove with a width greater than the thickness of the detonation spring (96).

3. The electric air gun gearbox according to claim 1, characterized in that: The drive assembly (5) includes a high-speed motor (51), and a bevel gear (52) is fixedly provided at the output end of the high-speed motor (51). The bevel gear (52) meshes with a bevel gear (61) for transmission. A central shaft (64) is fixed at the center of each of the bevel gear (61), main gear (62), and half gear (63).

4. The electric air gun gearbox according to claim 3, characterized in that: Both the gun casing I (1) and the gun casing II (2) include a main casing (01). A snap-fit ​​groove (02) is provided at the connection between the main casing (01) and the cylinder liner (9). A limiting protrusion (03) is also fixedly provided on the inner wall of the main casing (01). An installation groove (04) is provided at the connection between the inner wall of the main casing (01) and the end of the central shaft (64).

5. The electric air gun gearbox according to claim 4, characterized in that: The cylinder piston (10) includes a main tube (101), the inner diameter of which is larger than the outer diameter of the power spring (8), and a plug (102) is fixedly provided at one end of the main tube (101). The outer diameter of the plug (102) is equal to the inner diameter of the combined outer tube (91), and a sealing gasket (103) is fixedly provided on the outer wall of the plug (102). The outer walls on both sides of the main tube (101) are fixedly provided with transverse positioning grooves (104), which are aligned with and slidably connected to the limiting protrusions (03); The bottom outer wall of the main tube (101) is provided with meshing teeth (105), and the half gear (63) meshes with the meshing teeth (105) for transmission.

6. The electric air gun gearbox according to claim 3, characterized in that: The high-speed motor (51) is connected to an external driving power supply, and the high-speed motor (51) is electrically connected to the control switch (4), and the control switch (4) controls the start and stop of the high-speed motor (51).

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