A high-flow gas valve for gas gun launching device

Abstract

A high-flow rate air valve for a gas cannon launching device is disclosed. By opening an air intake switch of an external high-pressure air source, compressed air is allowed to enter a cavity between a tail cover and a valve core through an air intake passage, and then the compressed air enters a cavity A. Finally, the compressed air in cavity A enters a gas storage bottle through an air charging hole for storage. When the gas storage bottle is full of compressed air, the air intake switch of the external high-pressure air source is closed. When it is necessary to deflate, the deflation switch of the external high-pressure air source is opened, and the compressed air is discharged from the valve body along the air intake passage. During the compressed air discharge process, the valve core moves toward the tail cover until the deflation hole is correspondingly connected to the deflation passage. Finally, the compressed air in the gas storage bottle is output at a high speed from the deflation passage to provide kinetic energy for the gas cannon shell. By calculating the flow rate of the compressed gas, the impact force exerted by the compressed air on the shell can be calculated, and then the damage amount of the armor shell can be easily calculated, and the error of the damage amount is small.

Description

Technical Field

[0001] The invention relates to the technical field of air flow valves, and in particular to a high-flow rate air valve used in an air gun launching device. Background Art

[0002] As is known, the outer shell armor of tanks, the deck armor of aircraft carriers and the outer shell of missiles need to undergo a series of tests before use. When testing the hardness of these armor shells, the traditional method is to use explosives to explode or to use light gas guns to fire shells for measurement. When the armor shell is damaged by the explosion of explosives, although the explosion equivalent can be used as a measure of the maximum damage data that the armor shell can withstand, the impact force generated by the explosion of explosives is relatively dispersed, so the damage amount of the armor shell will be less than the explosion equivalent of the explosives, resulting in a large error in the damage amount of the armor shell detected;

[0003] When the shell fired by the light gas gun is fired at the armor shell, although the impact force of the shell on the armor shell is relatively concentrated, the launching device of the light gas gun generally uses compressed air as a power source, and there are two ways to generate compressed air. One way is to generate compressed air by burning gunpowder to promote the launching of the shell. Since the gunpowder needs to be refilled each time the shell is launched, the operation is relatively cumbersome when using this method, and the thrust generated by this method is unstable, so it is impossible to judge the magnitude of the force of the compressed air on the shell; the other way is to release compressed air from a gas cylinder. Although this method can calculate the force of the compressed air on the shell, due to the high pressure in the gas cylinder, the compressed air needs to be reduced by a pressure reducing valve before being output. In this way, the compressed air pressure output is relatively small, thereby limiting the power of the shell. In summary, there is a need in the market for a device that can make the operation of the light gas gun simple and easy, and can also control the force that promotes the launching of the shell, so as to accurately obtain the damage amount of the armor shell. Summary of the invention

[0004] In order to overcome the deficiencies in the background technology, the present invention discloses a high-flow rate gas valve for a gas gun launching device.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] A high-flow rate air valve for an air gun launching device comprises an outer shell, a valve core assembly and a tail cover; the outer shell is a hollow cylindrical structure with an open tail end, a head end surface of the outer shell is provided with an air release channel, one end of the air release channel is correspondingly connected to an inner cavity of the outer shell, and the other end of the air release channel is connected to an external air gun launching device through a pipeline, the head end of the tail cover is correspondingly sealed and connected to the tail end of the outer shell, the tail cover is provided with an air intake channel and an air charging hole, one end of the air intake channel is correspondingly connected to an output end of an external high-pressure air source and the external atmosphere through a three-way solenoid valve, and the other end of the air intake channel is correspondingly connected to the inner cavity of the outer shell;

[0007] The valve core assembly is located in the inner cavity of the shell, and the valve core assembly includes a valve core sleeve and a valve core that can move along the axis in the valve core sleeve. The valve core is set as a cylindrical structure, and the valve core is provided with an outlet channel whose air outlet is located on the outer edge surface of the valve core. The head end surface of the valve core is in contact with the inner side surface of the head end of the shell, and the outer edge surface of the head end of the valve core is set as an annular step. The head end surface of the valve core can block the inner port of the exhaust channel. The tail end surface of the valve core is provided with a one-way valve, and the air inlet end of the one-way valve faces the port of the air inlet channel of the tail cover. The air outlet end of the one-way valve is located in the valve core and is correspondingly connected with the air outlet channel.

[0008] The valve core sleeve is sleeved outside the valve core, and the body of the valve core sleeve is provided with an air outlet hole and an air release hole, the orifice of the air outlet hole corresponds to the port of the air outlet channel, the orifice of the air release hole corresponds to the annular step at the head end of the valve core, the head end of the valve core sleeve is fixedly connected to the inner side surface of the head end of the shell, and the tail end of the valve core sleeve is sealed and abutted against the head end surface of the tail cover; the cavity between the outer wall surface of the valve core sleeve and the inner wall surface of the shell is set as cavity A, and cavity A is correspondingly connected to the orifice at one end of the tail cover inflation hole, and the other end of the inflation hole is correspondingly connected to the external gas storage bottle through a pipeline;

[0009] Preferably, the vertical step surface of the annular step at the valve core head end is set as an inclined surface, and the inclined surface corresponds to the orifice of the vent hole;

[0010] Preferably, the inflation holes are configured as a plurality of arc-shaped waist holes, and the plurality of arc-shaped waist holes are arranged in a circle;

[0011] Preferably, the air outlet channels are provided in plurality, and the plurality of air outlet channels are correspondingly connected to the air outlet of the one-way valve, and the air outlet holes are provided in plurality, and the orifices of the plurality of air outlet holes correspond one-to-one to the ports of the plurality of air outlet channels;

[0012] Preferably, an anti-rotation mechanism for preventing the valve core sleeve from rotating is provided between the valve core sleeve head end and the inner side of the housing head end;

[0013] Preferably, the air inlet of the one-way valve is smaller than the corresponding port of the air inlet passage;

[0014] Preferably, the outer edge surface of the valve core is provided with a guide wear-resistant ring;

[0015] Preferably, a sealing ring is provided at the corresponding position of the inner side surface of the housing head end and the valve core head end;

[0016] Preferably, the head end surface of the tail cover is provided with a buffer ring corresponding to the tail end of the valve core, and the end surface of the buffer ring protrudes from the end surface of the tail cover;

[0017] Preferably, the housing is provided with a pressure gauge for detecting the air pressure in cavity A.

[0018] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0019] The high-flow rate air valve for an air gun launching device disclosed by the present invention adjusts the solenoid valve to the air intake state, connects the external high-pressure air source with the air intake channel, so that the compressed air generated by the external high-pressure air source enters the cavity between the tail cover and the valve core through the air intake channel, and then the compressed air enters the cavity A through the one-way valve, the air outlet channel and the air outlet hole, and finally the compressed air in the cavity A enters the gas storage bottle through the charging hole for storage, and when the gas storage bottle is full of compressed air, the operation of the external high-pressure air source is stopped; when it is necessary to deflate, the solenoid valve is adjusted to the deflation state, and the external atmosphere is correspondingly connected with the air intake channel. Due to the action of the one-way valve, the compressed air in the cavity between the tail cover and the valve core will be discharged from the valve body along the air intake channel. In the process of compressed air discharge, the compressed air in the cavity A hits the annular platform at the head end of the valve core through the deflation hole. Under the thrust generated by the step, the valve core will move toward the tail cover. When a gap appears between the head end face of the valve core and the inner side face of the head end of the shell, the compressed air in cavity A will flow rapidly into the vent channel through the vent port, thereby quickly pushing the valve core toward the tail cover, thereby completely connecting the vent hole with the vent channel. Finally, the compressed air in the gas storage bottle will be output at high speed through cavity A, the vent hole and the vent channel, providing kinetic energy for the gas gun shells. Since the movement of the valve core in the valve core sleeve can be achieved only by the solenoid valve control of the valve body, that is, the switching between the inflation state and the deflation state can be achieved, thereby controlling the flow rate of the compressed air, making the operation of the light gas gun more convenient, and by calculating the flow rate of the compressed gas, the impact force exerted by the compressed air on the shells can be calculated, and then the damage to the armor shell can be easily calculated, and the error of the damage is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the tail cover.

[0022] In the figure: 1. Shell; 1.1. Vent channel; 1.2. Sealing ring; 1.3. Pressure gauge; 2. Tail cover; 2.1. Inlet channel; 2.2. Inflation hole; 2.3. Buffer ring; 3. Valve core; 3.1. Outlet channel; 3.2. One-way valve; 3.3. Guide wear-resistant ring; 4. Valve core sleeve; 4.1. Outlet hole; 4.2. Vent hole; 5. Cavity A; 6. Three-way solenoid valve; 7. High-pressure gas source. DETAILED DESCRIPTION

[0023] The present invention can be explained in detail by the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0024] Combined with Figure 1-2 The high-flow rate air valve for an air gun launching device comprises an outer shell 1, a valve core assembly and a tail cover 2; the outer shell 1 is set to be a hollow cylindrical structure with an open tail end, a head end surface of the outer shell 1 is provided with an air release channel 1.1, one end of the air release channel 1.1 is correspondingly connected to the inner cavity of the outer shell 1, and the other end of the air release channel 1.1 is connected to the external air gun launching device through a pipeline, the head end of the tail cover 2 is correspondingly sealed and connected to the tail end of the outer shell 1, and as needed, a buffer ring 2.3 corresponding to the tail end of the valve core 3 is provided on the head end surface of the tail cover 2, and the end surface of the buffer ring 2.3 protrudes from the end surface of the tail cover 2, when the valve core 3 moves toward the direction of the tail cover 2, the buffer ring 2.3 can reduce the force when the valve core 3 contacts the end surface of the tail cover 2, thereby effectively protecting the valve core 3 and the tail cover 2, and the tail cover 2 is provided with an air inlet channel 2.1 and an air charging hole 2.2, one end of the air inlet channel 2.1 is respectively connected to the output end of an external high-pressure air source 7 and the external atmosphere through a three-way solenoid valve 6;

[0025] The valve core assembly is located in the inner cavity of the housing 1, and the valve core assembly includes a valve core sleeve 4 and a valve core 3 that can move along the axis in the valve core sleeve 4. The valve core 3 is set as a columnar structure. In addition, the outer edge surface of the valve core 3 is provided with a guide wear-resistant ring 3.3, through which the valve core 3 can avoid the rotation of the valve core 3 when moving in the valve core sleeve 4, thereby preventing the air outlet channel 3.1 from not corresponding to the air outlet hole 4.1. The outer edge surface of the valve core 3 is provided with an air outlet channel 3.1. According to needs, a plurality of air outlet channels 3.1 are provided, and the plurality of air outlet channels 3.1 are connected to the one-way valve 3. .2 is connected to the gas outlet, the gas outlet holes 4.1 are arranged in a plurality, and the openings of the plurality of gas outlet holes 4.1 correspond to the ports of the plurality of gas outlet channels 3.1 one by one, so that the compressed gas enters the cavity A5 faster through the plurality of gas outlet channels 3.1 and the gas outlet holes 4.1, thereby improving the gas storage speed of the gas storage bottle; the head end face of the valve core 3 is in contact with the inner side face of the head end of the shell 1, and the head end face of the valve core 3 can block the inner port of the deflation channel 1.1, which is in the inflation state at this time, and the head end of the valve core 3 blocks the deflation channel 1.1 to allow the compressed air to enter the gas storage bottle from the cavity A5;

[0026] According to the needs, a sealing ring 1.2 is provided at the corresponding position of the inner side surface of the head end of the shell 1 and the head end of the valve core 3. The sealing ring 1.2 can make the head end of the valve core 3 block the deflation channel 1.1 more tightly, further improving the sealing performance of the valve body. A one-way valve 3.2 is provided on the tail end face of the valve core 3. The one-way valve 3.2 can prevent the compressed air from flowing back, so that the valve core 3 can move toward the tail cover 2 in the deflated state, and the air inlet end of the one-way valve 3.2 faces the port of the air inlet channel 2.1 of the tail cover 2. In addition, the air inlet port of the one-way valve 3.2 is smaller than the corresponding port of the air inlet channel 2.1. When the deflated state is changed to the inflated state, since the port of the air inlet channel 2.1 is larger, the compressed air will also generate a force on the tail end face of the valve core 3 when it is input, so that the valve core 3 moves faster. The air outlet end of the one-way valve 3.2 is located in the valve core 3 and is correspondingly connected to the air outlet channel 3.1.

[0027] The valve core sleeve 4 is sleeved outside the valve core 3, and the body of the valve core sleeve 4 is provided with an air outlet hole 4.1 and an air release hole 4.2. The orifice of the air outlet hole 4.1 corresponds to the port of the air outlet channel 3.1. The air release hole 4.2 is located at the head end of the valve core sleeve 4, and when the valve core 3 moves to the tail end of the valve core sleeve 4, the air release hole 4.2 can be correspondingly connected with the air release channel 1.1. According to needs, the outer edge surface of the head end of the valve core 3 is set as an annular step, and the vertical step surface of the step corresponds to the orifice of the air release hole 4.2 and is set as an inclined surface. When the valve body is in a deflated state, the compressed air in the cavity A5 will generate a force on the inclined surface, and cooperate with the air inlet channel 2.1 to exhaust outwards, so that the valve core 3 can quickly move toward the tail cover 2, so that the air release hole 4.2 can quickly connect with the air release channel 1.1, and then the compressed air can be output from the air release channel 1.1 at a high speed, and finally provide launching power for the shells;

[0028] The head end of the valve core sleeve 4 is fixedly connected to the inner side surface of the head end of the shell 1. In particular, an anti-rotation mechanism for preventing the valve core sleeve 4 from rotating is provided between the head end of the valve core sleeve 4 and the inner side of the head end of the shell 1, which can further enhance the stability of the valve core sleeve 4. The tail end of the valve core sleeve 4 is sealed and abutted against the head end surface of the tail cover 2. The valve core sleeve 4 separates the valve core 3 from the cavity A5, so that the air inlet channel 2.1 can be connected to the cavity A5 through the air inlet hole only when it is inflated; the cavity between the outer wall surface of the valve core sleeve 4 and the inner wall surface of the shell 1 is set as an empty Cavity A5, as required, the housing 1 is provided with a pressure gauge 1.3 for detecting the air pressure of the cavity A5, by comparing the detected pressure value of the cavity A5 with the gas cylinder or the external high-pressure gas source, it can be judged whether the valve body works normally, the cavity A5 is correspondingly connected with one end opening of the gas charging hole 2.2 of the tail cover 2, and the other end opening of the gas charging hole 2.2 is correspondingly connected with the external gas cylinder through a pipeline, in addition, the gas charging hole 2.2 is set as a plurality of arc-shaped waist holes, and the plurality of arc-shaped waist holes are arranged in a circle, and the arc-shaped waist holes can further enhance the gas storage speed of the gas cylinder;

[0029] To sum up, since the conversion of the inflation state and the deflation state of the air valve can be controlled only by the switch of the solenoid valve, and the execution of the action is ensured to be in place and the reliability and safety of repetition are ensured, the device also has the characteristics of easy operation, strong sealing performance, simple structure and low failure rate.

[0030] The parts not described in detail in this invention are prior art.

Claims

1. A high-flow rate gas valve for a gas gun launching device, characterized in that: The invention comprises a shell (1), a valve core assembly and a tail cover (2); the shell (1) is a hollow cylindrical structure with an open tail end; a deflation channel (1.1) is provided on the head end surface of the shell (1); one end of the deflation channel (1.1) is correspondingly connected to the inner cavity of the shell (1); the other end of the deflation channel (1.1) is connected to an external gas cannon launching device through a pipeline; the head end of the tail cover (2) is correspondingly sealed and connected to the tail end of the shell (1); the tail cover (2) is provided with an air intake channel (2.1) and an air charging hole (2.2); one end of the air intake channel (2.1) is correspondingly connected to the output end of an external high-pressure gas source (7) and the external atmosphere through a three-way solenoid valve (6); the other end of the air intake channel (2.1) is correspondingly connected to the inner cavity of the shell (1); The valve core assembly is located in the inner cavity of the housing (1), and comprises a valve core sleeve (4) and a valve core (3) that can move along the axis in the valve core sleeve (4); the valve core (3) is set as a columnar structure, and the valve core (3) is provided with an outlet channel (3.1) whose outlet is located on the outer edge surface of the valve core (3); the head end surface of the valve core (3) is in contact with the inner side surface of the head end of the housing (1), and the outer edge surface of the head end of the valve core (3) is set as an annular step; the head end surface of the valve core (3) can block the inner port of the exhaust channel (1.1); the tail end surface of the valve core (3) is provided with a one-way valve (3.2); the air inlet end of the one-way valve (3.2) faces the port of the air inlet channel (2.1) of the tail cover (2), and the air outlet end of the one-way valve (3.2) is located in the valve core (3) and is correspondingly connected to the air outlet channel (3.1); The valve core sleeve (4) is sleeved outside the valve core (3), and the body of the valve core sleeve (4) is provided with an air outlet hole (4.1) and an air release hole (4.2), the orifice of the air outlet hole (4.1) corresponds to the port of the air outlet channel (3.1), the orifice of the air release hole (4.2) corresponds to the annular step at the head end of the valve core (3), the head end of the valve core sleeve (4) is fixedly connected to the inner side surface of the head end of the shell (1), and the tail end of the valve core sleeve (4) is sealed and abutted against the head end surface of the tail cover (2); the cavity between the outer wall surface of the valve core sleeve (4) and the inner wall surface of the shell (1) is set as a cavity A (5), the cavity A (5) is correspondingly connected to the orifice of one end of the inflation hole (2.2) of the tail cover (2), and the other end of the inflation hole (2.2) is correspondingly connected to the external gas storage bottle; The vertical step surface of the annular step at the head end of the valve core (3) is set as an inclined surface, and the inclined surface corresponds to the orifice of the air release hole (4.2); a plurality of the air outlet channels (3.1) are provided, and the plurality of air outlet channels (3.1) are all correspondingly connected to the air outlet of the one-way valve (3.2); a plurality of the air outlet holes (4.1) are provided, and the orifices of the plurality of air outlet holes (4.1) correspond one-to-one to the ports of the plurality of air outlet channels (3.1).

2. The high-flow rate gas valve for a gas gun launching device as claimed in claim 1, characterized in that: The inflation holes (2.2) are configured as a plurality of arc-shaped waist holes, and the plurality of arc-shaped waist holes are arranged in a circle.

3. The high-flow rate gas valve for a gas gun launching device as claimed in claim 1, characterized in that: An anti-rotation mechanism for preventing the valve core sleeve (4) from rotating is provided between the head end of the valve core sleeve (4) and the inner side of the head end of the housing (1).

4. The high-flow rate gas valve for a gas gun launching device as claimed in claim 1, characterized in that: The air inlet of the one-way valve (3.2) is smaller than the corresponding port of the air inlet channel (2.1).

5. The high-flow rate gas valve for a gas gun launching device as claimed in claim 1, characterized in that: The outer edge surface of the valve core (3) is provided with a guide wear-resistant ring (3.3).

6. The high-flow rate gas valve for a gas gun launching device as claimed in claim 1, characterized in that: A sealing ring (1.2) is provided at corresponding positions of the inner side surface of the head end of the housing (1) and the head end of the valve core (3).

7. The high-flow rate gas valve for a gas gun launching device as claimed in claim 1, characterized in that: The head end surface of the tail cover (2) is provided with a buffer ring (2.3) corresponding to the tail end of the valve core (3), and the end surface of the buffer ring (2.3) protrudes from the end surface of the tail cover (2).

8. The high-flow rate gas valve for a gas gun launching device as claimed in claim 1, characterized in that: The housing (1) is provided with a pressure gauge (1.3) for detecting the air pressure in the cavity A (5).

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