Gas cylinder puncturing assembly with deflation function and air rifle

Abstract

The invention discloses a gas cylinder puncturing assembly with a deflation function and a gas rifle, the puncturing assembly is mounted at the rear end of a gas pipe with a limiting mechanism, and comprises a locking sleeve which is in threaded connection with the gas pipe and is in sealing fit with the gas pipe, and a puncturing needle which is arranged on the locking sleeve and is used for puncturing a gas cylinder at a fixed position in the gas pipe; the locking kit is provided with an axial penetrating channel, the pricking needle is connected into the channel in a sliding mode, a matched sealing mechanism is arranged between the pricking needle and the channel, a position adjusting mechanism is arranged on the locking kit, and the position adjusting mechanism makes contact with the pricking needle to adjust the position of the pricking needle in the channel, so that the pricking needle is located at the sealing position or the opening position. At the sealing position, the sealing mechanism is in sealing fit to prevent gas in the channel from passing through, and at the opening position, the gas can pass through the channel. According to the gas cylinder puncturing assembly with the deflation function and the air rifle, the puncturing assembly can exhaust gas which is not used up in a gas cylinder, air pressure inside and outside an air pipe is balanced, and the puncturing assembly can be unscrewed in a labor-saving mode.

Description

Technical Field

[0001] The invention relates to a gas cylinder puncturing component with a deflation function and an air rifle, belonging to the technical field of air rifles. Background Art

[0002] An airgun is a low-power gun that relies on the pressure of compressed air or gas to fire small metal bullets. There are three main types of common airgun power: spring-piston, pneumatic, and carbon dioxide. Among them, the carbon dioxide kinetic airgun uses compressed carbon dioxide gas as power, which has the advantages of long range, low noise, small recoil, simple use, convenient later maintenance, and high safety. It has gradually become a popular sports shooting and entertainment product. Different types of airguns have different ways of installing gas cylinders. Among them, the rear part of the rifle airgun is equipped with an air pipe, the front end of the air pipe is the exhaust and shooting end, which is equipped with a valve assembly, and the rear end is the gas cylinder insertion end. A limiting mechanism is set in the air pipe to place the gas cylinder in a fixed position in the air pipe. Before shooting, put the gas cylinder into the air pipe from the rear end. At a fixed position in the trachea, a puncture assembly with a puncture needle is installed at the rear end of the trachea, wherein the puncture assembly is connected to the trachea thread and cooperates with the trachea seal. During installation, the puncture assembly is gradually screwed into the trachea so that the puncture needle punctures the gas cylinder, and the carbon dioxide in the gas cylinder is released into the trachea. The trachea is filled with high-pressure carbon dioxide gas. As the trigger is pulled, the valve assembly switch discharges the carbon dioxide gas from the front end of the trachea one by one to fire the bullet. When the shooting is completed and the carbon dioxide in the trachea has not been used up, there is still high pressure in the trachea acting on the threaded connection surface between the puncture assembly and the trachea, generating a large clamping force, making it difficult to unscrew the puncture assembly, and the trigger needs to be pulled continuously until the high-pressure carbon dioxide in the trachea is exhausted, causing inconvenience in operation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a gas cylinder puncturing component and an air rifle with a deflation function. The puncturing component can discharge the unused gas in the gas cylinder, balance the air pressure inside and outside the trachea, and make the puncturing component easy to unscrew, thereby solving the shortcomings of the prior art.

[0004] The technical solution of the present invention is: a gas cylinder puncturing assembly with a deflation function, installed at the rear end of a trachea with a limiting mechanism, comprising a locking kit that is threadedly connected to the trachea and sealed, and a puncture needle arranged on the locking kit for puncturing the gas cylinder at a fixed position in the trachea, the locking kit having an axially penetrating channel, the puncture needle slidingly connected in the channel, a matching sealing mechanism between the puncture needle and the channel, a positioning mechanism being provided on the locking kit, the positioning mechanism adjusting the position of the puncture needle in the channel by contacting with the puncture needle, so that the puncture needle is in a sealing position or an open position, when in the sealing position, the sealing mechanism sealingly cooperates to block the passage of gas in the channel, and when in the open position, gas can pass through the channel.

[0005] Furthermore, the puncture needle is adjusted from the open position to the sealed position during the process of moving inwardly along the channel and then punctures the gas cylinder placed at a fixed position in the trachea, and is adjusted from the sealed position to the open position during the process of moving outwardly along the channel.

[0006] Furthermore, the positioning mechanism includes an adjusting screw threadedly connected to the channel and in contact with the rear end of the puncture needle. The adjusting screw and the locking kit have the same thread rotation direction. The locking kit is provided with a connecting mechanism that cooperates with the adjusting screw. When the puncture needle is in the open position, the adjusting screw continues to move outward and connects with the connecting mechanism, driving the locking kit to rotate and loosen synchronously.

[0007] Furthermore, the positioning mechanism includes an elastic reset member installed in the channel and in contact with the thorn needle. When the thorn needle moves inward under the push of the adjusting screw, the elastic reset member further deforms to generate an elastic force that pushes the thorn needle to move outward. When the adjusting screw moves outward, the elastic force pushes the thorn needle outward so that the thorn needle is always in contact with the adjusting nut.

[0008] Furthermore, an air inlet is provided in the needle, the air inlet of the air inlet is located at the front end of the needle, and the air outlet is located on the side wall of the needle.

[0009] An air rifle comprises a butt with an air pipe arranged therein and a support cover fitted on the end of the butt, wherein the air pipe is provided with the above-mentioned gas cylinder puncturing assembly, and the support cover is provided with a wrench matched with the adjusting screw.

[0010] By implementing the present invention, the gas cylinder is put into the trachea from the rear end of the trachea, and is placed at a fixed position in the trachea by contacting with the limiting mechanism. The puncture component is installed at the rear end of the trachea through the locking kit and the trachea thread connection. The locking kit and the trachea are sealed and matched. The positioning mechanism pushes the puncture needle to move inward so that the sealing mechanism seals and cooperates to block the gas from passing through the channel. The puncture needle punctures the trachea placed at a fixed position in the trachea, so that the released gas can only be discharged from the front end of the trachea to achieve the firing of the bullet. When the gas cylinder is removed when the gas is not used up, the positioning mechanism and the puncture needle move outward so that the puncture needle is in an open position, and the unused gas is released from the channel, and the locking kit can be easily loosened to remove the puncture component. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the needle of the present invention in an open position;

[0012] Figure 2 It is a schematic diagram of the lancet of the present invention in a sealing position;

[0013] Figure 3 for Figure 2 A magnified image of point A;

[0014] Figure 4 This is a schematic diagram of the buttstock and butt cover.

[0015] As shown in the figure: air pipe 1; gas cylinder 2; sealing ring 3; channel 4; puncture needle 5; needle tip section 6; opening section 7; sealing section 8; limiting section 9; locking sleeve 10; adjusting screw 11; screw 12; movable compression spring 13; air bleed channel 14; sealing component group 15; buttstock 16; butt cover 17; wrench 18. DETAILED DESCRIPTION

[0016] Embodiments of the present invention: Figures 1 to 3 As shown, a gas cylinder puncturing assembly with a deflation function is installed at the rear end of a trachea 1 with a limiting mechanism. The limiting mechanism is a stopper located in the trachea 1. When the gas cylinder 2 is placed in the trachea 1, the stopper stops it so that it is placed in a fixed position in the trachea 1. The puncturing assembly includes a locking kit on the rear end of the trachea 1, a puncture needle 5 and an adjusting screw 11 installed on the locking kit, and the locking kit includes a locking sleeve 10 threadedly connected to the trachea 1, a sealing ring 3 arranged on the outer wall of the locking sleeve 10, and a locking screw 11 installed on the locking sleeve 10. The copper sleeve 19 at the front end of the tight sleeve 10, the sealing component group 15 limited between the locking sleeve 10 and the copper sleeve 19, the locking set has an axially penetrating channel 4, the channel 4 is a stepped hole, the cross section of the puncture needle 5 is stepped, and it is slidably connected in the channel 4. The puncture needle 5 has a needle tip section 6, an opening section 7, a sealing section 8, and a limiting section 9 with increasing diameters from the front end to the rear end. The adjustment mechanism includes an adjusting screw 11 threadedly connected to the rear end of the channel 4. When in use, the gas cylinder 2 is placed into the trachea 1 from the rear end of the trachea 1, and the gas cylinder 2 is inserted into the trachea 1 through the trachea 1. The needle 5 is placed at a fixed position in the trachea 1 by contacting with the limiting mechanism. The puncture component is threadedly connected with the trachea 1 through the locking kit and installed at the rear end of the trachea 1. The sealing cooperation with the trachea 1 is realized through the sealing ring 3. The adjusting screw 11 is rotated to move inward to push the needle 5 inward. When the opening section 7 passes through the sealing component group 15, the needle 5 is in the opening position. The needle 5 continues to move inward so that the sealing section 8 passes through the sealing component group 15 to realize the sealing cooperation of the sealing mechanism, blocking the passage of gas in the channel 4. The needle 5 is in the opening position. The needle tip section 6 of the needle 5 punctures the gas cylinder 2, and the gas in the gas cylinder 2 is released. The released gas can only be discharged from the front end of the trachea 1 to realize the firing of the bullet. When the gas cylinder is removed from the gas cylinder when the gas is not used up, the adjusting screw 11 is reversed to move it outward. The needle 5 is also moved outward under the pressure of the high-pressure gas in the trachea 1 so that the needle 5 is in the opening position. The unused gas is released from the channel 4. The threaded connection between the locking kit and the trachea 1 is not affected by the high pressure, so the locking kit can be easily unscrewed to remove the puncture component.

[0017] As a preferred embodiment, the adjusting screw 11 is a hexagon socket screw with the same thread direction as the locking kit, and a screw 12 that cooperates with the adjusting screw 11 is provided near the outer end of the channel 4. After the locking kit is tightened and installed on the trachea 1, the adjusting screw 11 is rotated inward so that the locking kit will not loosen. When the adjusting screw 11 is reversed and moved outward to the position where it is resisted by the screw 1, the needle 5 is in an open position, and the unused gas is released from the channel 4. The adjusting screw 11 is continued to be reversed. The adjusting screw will not rotate relative to the locking kit but will drive the locking kit to be reversed and loosened together. By reversing the adjusting screw 11, deflation and unscrewing the locking kit are completed in one step.

[0018] As a preferred embodiment, the positioning mechanism includes a movable compression spring 13 installed in the channel 4 and in contact with the puncture needle 5. The movable compression spring 13 is the elastic reset member, which is sleeved outside the puncture needle 5 and limited between the stepped surface of the channel 4 and the limiting section 9. The movable compression spring 13 cooperates with the adjusting screw 11 to limit the puncture needle 5 on the one hand, that is, the puncture assembly is more stable when used as a whole. Since the movable compression spring 13 and the adjusting screw 11 limit the two sides of the puncture needle 5, the puncture needle 5 will not slip or shake. On the other hand, it plays a role in ensuring that the gas in the trachea 1 is exhausted. When there is not much gas left in the gas cylinder and the pressure in the trachea 1 is not very high, it may not be possible to rely on the pressure to push the puncture needle 5 back to the open position. However, through the elastic force of the movable compression spring 13, when the adjusting screw 11 moves outward, the elastic force ensures that the puncture needle 5 is pushed outward to the open position.

[0019] As a preferred embodiment, in order to ensure that gas can be smoothly discharged when the puncture needle 5 pierces the gas cylinder, an air inlet channel 14 is provided in the puncture needle 5. The air inlet of the air inlet channel 14 is located at the front end of the puncture needle 5, and the air outlet is located on the side wall of the puncture needle 5. When the puncture needle 5 pierces the gas cylinder 2 and seals the piercing opening, the gas in the gas cylinder 2 can also be released into the trachea 1 through the air inlet channel 14.

[0020] An air rifle, such as Figure 4 As shown, it includes a buttstock 16 with an air tube 1 inside, and a support cover 17 that fits on the end of the buttstock 16. The air tube 1 is provided with the above-mentioned gas cylinder puncturing component, and the support cover 17 is provided with a wrench 18 that cooperates with the adjusting screw 11. Since the support cover 17 needs to be disassembled and assembled when replacing the gas cylinder 2, the wrench 18 is fixed on the support cover 17, and the support cover 17 is used as a wrench as a whole, which is convenient, labor-saving and will not be forgotten.

Claims

1. A gas cylinder puncturing assembly with a deflation function, installed at the rear end of a trachea with a limiting mechanism, comprising a locking kit threadedly connected to the trachea and sealingly matched, and a puncture needle arranged on the locking kit for puncturing the gas cylinder at a fixed position in the trachea, characterized in that: The locking kit has an axially penetrating channel, the puncture needle is slidably connected in the channel, and a matching sealing mechanism is provided between the puncture needle and the channel. The locking kit is provided with a positioning mechanism, which adjusts the position of the puncture needle in the channel by contacting the puncture needle, so that the puncture needle is in a sealing position or an open position. When in the sealing position, the sealing mechanism seals and cooperates to block the passage of gas in the channel, and when in the open position, gas can pass through the channel.

2. The gas cylinder puncturing assembly with deflation function according to claim 1, characterized in that: The puncture needle is adjusted from the open position to the sealed position during the process of moving inwardly along the channel and then punctures the gas cylinder placed at a fixed position in the trachea. The puncture needle is adjusted from the sealed position to the open position during the process of moving outwardly along the channel.

3. The gas cylinder puncturing assembly with deflation function according to claim 2, characterized in that: The positioning mechanism includes an adjusting screw threadedly connected to the channel and in contact with the rear end of the puncture needle. The adjusting screw and the locking kit have the same thread rotation direction. The locking kit is provided with a connecting mechanism that cooperates with the adjusting screw. When the puncture needle is in the open position, the adjusting screw continues to move outward and connects with the connecting mechanism, driving the locking kit to rotate and loosen synchronously.

4. The gas cylinder puncturing assembly with deflation function according to claim 3, characterized in that: The positioning mechanism includes an elastic reset member installed in the channel and in contact with the thorn needle. When the thorn needle moves inward under the push of the adjusting screw, the elastic reset member further deforms to generate an elastic force that pushes the thorn needle to move outward. When the adjusting screw moves outward, the elastic force pushes the thorn needle to move outward so that the thorn needle is always in contact with the adjusting nut.

5. The gas cylinder puncturing assembly with deflation function according to any one of claims 1 to 4, characterized in that: An air inlet is arranged in the needle, an air inlet of the air inlet is located at the front end of the needle, and an air outlet is located on the side wall of the needle.

6. An air rifle, comprising a buttstock with an air pipe therein and a butt cover fitted on the end of the buttstock, characterized in that: The gas cylinder puncturing assembly according to any one of claims 1 to 5 is arranged in the air pipe, and a wrench cooperating with the adjusting screw is arranged on the support cover.

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