Piston type air excitation cannon

Abstract

The utility model discloses a piston type air excitation cannon which comprises an air inlet pipeline, a deflation valve, an electromagnetic excitation valve, an air outlet pipeline and an inverted bucket which are sequentially connected through an air path, one end of the air inlet pipeline is connected with an air compressor for pressurizing and inflating, and meanwhile the air inlet pipeline serves as a high-pressure air storage unit; a piston is arranged in the deflation valve, and the deflation valve comprises an excitation air inlet and an air outlet valve opening which are formed in the two end faces. The other end of the air inlet pipeline is connected with the excitation air inlet, and the other end of the air outlet pipeline is connected with the air outlet valve port; the electromagnetic excitation valve is in gas circuit connection with the deflation valve through an excitation gas outlet; compressed gas is injected into the deflation valve, so that the piston is pushed by the compressed gas to block the air outlet valve port, when air pressure in the deflation valve reaches a certain pressure, the compressed gas is discharged through the excitation air outlet communicated with the electromagnetic excitation valve to change the pressure of the deflation valve, the piston is pushed back, and the compressed gas is released through the air outlet valve port to impact the inverted bucket. Therefore, strong impact force is generated.

Description

Technical Field

[0001] The utility model relates to the technical field of air cannons, in particular to a piston-type air excitation cannon. Background Art

[0002] In film and television works, shocking special effects scenes of explosions often appear, and the production of such explosion scenes is generally achieved through gunpowder blasting. Although this blasting method can produce relatively realistic and shocking explosion special effects scenes, it requires a large amount of gunpowder to produce a strong blasting scene. It is very dangerous and prone to accidents. In addition, a large amount of chemical substances are produced after the explosion, which will cause great pollution to the environment. At present, air cannons can be used as an alternative. Air cannons can compress and store high-pressure air and instantly release high-pressure air to create the effect of impact blasting. They have the characteristics of low energy consumption, low cost, and easy maintenance.

[0003] In the prior art, the air cannon mainly used is a diaphragm-type air cannon, which collects compressed gas by connecting to an external high-pressure air source or an air compressor, and stores the compressed gas entering the air cannon. The air cannon is provided with an air release valve for storing compressed gas. When high-pressure air is injected, it will be blocked and stored by the diaphragm inside the air release valve. When the compressed gas volume accumulates to a certain pressure, the compressed gas breaks through the diaphragm and explodes to the outside world, causing a blasting effect. However, the compressed gas pressure stored in the diaphragm-type air cannon can actually only reach about 10 kilograms, and it is impossible to achieve high-pressure air storage. Therefore, the actual air ejection effect caused by the diaphragm-type air cannon is weak, and it can actually only be used as an entertainment toy in an amusement park, and cannot achieve a more powerful blasting effect. Therefore, there is an urgent need for an air cannon with a reasonable structure to solve the above-mentioned technical problems. Utility Model Content

[0004] Aiming at the shortcoming in the above-mentioned technology that the compressed gas pressure output by the diaphragm-type air cannon is relatively low, the utility model provides a piston-type air excitation cannon.

[0005] To achieve the above-mentioned object, the utility model provides a piston-type air excitation cannon, comprising an air inlet pipe, an air excitation component, and an air outlet pipe connected in sequence by air paths, wherein one end of the air inlet pipe away from the air excitation component is connected to an external air compressor; an inverted bucket is provided at one end of the air outlet pipe away from the air excitation component, and the inverted bucket is arranged opposite to the pipe opening of the air outlet pipe;

[0006] The air excitation component includes an air release valve and an electromagnetic excitation valve, the air release valve includes an excitation cavity and an excitation air inlet and an air outlet valve port arranged on both end surfaces, a piston is provided in the excitation cavity, and the piston reciprocates in the air release valve to control the opening and closing of the air outlet valve port; the other end of the air outlet pipe is connected to the air outlet valve port; an excitation air outlet connected to the excitation cavity is provided on the side of the air release valve, and the electromagnetic excitation valve is connected to the excitation air outlet; the air release valve is also formed with a middle cavity airway connected to the air outlet valve port, and the other end of the air inlet pipe is connected to the excitation air inlet and the middle cavity airway;

[0007] When the external air compressor compresses gas and injects it into the air release valve, the compressed gas passes through the excitation air inlet into the air release valve to impact the piston, squeeze and seal the air outlet valve port, and fills the air release valve through the middle cavity air channel, so that the air release valve stores compressed gas. The electromagnetic excitation valve operates to open the excitation air outlet, and the compressed gas in the excitation cavity flows into the electromagnetic excitation valve to make the piston retreat, and the air outlet valve port releases the compressed gas to impact the bucket.

[0008] As an improved solution of the present invention, the end surface of the piston is provided with a spring groove, a compression spring is provided in the spring groove, and the two ends of the compression spring are respectively connected to the bottom surface of the spring groove and the exhaust valve has the excitation inlet

[0009] When the gas in the air release valve is completely released, the air release valve is balanced with the external air pressure, and the compression spring stretches and rebounds to allow the piston to block the air outlet valve port.

[0010] As an improved solution of the present invention, it further includes at least one sealing ring, which is sleeved on the piston. When the piston blocks the air outlet valve, the sealing ring is used to seal the gap between the piston and the air outlet valve.

[0011] As an improved solution of the present invention, the air release valve is outer-mounted with a protective box body, and the protective box body is provided with a pressure relief port for pressure relief.

[0012] As an improved solution of the present invention, the diameter of the excitation air inlet is smaller than the diameter of the excitation air outlet, so that the air pressure through the excitation air inlet is lower than the air pressure through the excitation air outlet.

[0013] As an improved solution of the present invention, the air release valve is threadedly connected to the air inlet pipe and the air outlet pipe.

[0014] As an improved solution of the present invention, an air intake valve for controlling the on-off of the air intake pipe is provided on the air intake pipe.

[0015] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention provides a piston-type air excitation cannon, comprising an air intake assembly, an air excitation assembly and an air outlet assembly connected in sequence by air paths, the air intake assembly comprising an air intake pipe, one end of the air intake pipe being connected to an external high-pressure air source and serving as a high-pressure air storage unit; the air outlet assembly comprising an inverted bucket and an air outlet pipe, the inverted bucket being arranged at one end of the air outlet pipe; the air excitation assembly comprising an air release valve and an electromagnetic excitation valve, a piston being arranged in the air release valve, the air release valve comprising an excitation air inlet and an air outlet valve port arranged at both end surfaces, the piston performing reciprocating motion in the air release valve to Control the opening and closing of the air outlet valve; an excitation outlet is provided on the side of the air release valve, the other end of the air inlet pipe is connected to the excitation inlet, and the other end of the air outlet pipe is connected to the air outlet valve; the electromagnetic excitation valve is connected to the air path of the air release valve through the excitation outlet; the utility model injects compressed gas into the air release valve so that the piston is pushed by the compressed gas to seal the air outlet valve; when the air pressure inside the air release valve reaches a certain pressure, the excitation outlet is opened through the electromagnetic excitation valve to change the pressure of the excitation cavity, so that the piston is pushed back, and the compressed gas is released through the air outlet valve to hit the bucket, thereby causing a strong impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model;

[0017] Figure 2 This is the first stereogram of the present utility model;

[0018] Figure 3 This is a cross-sectional view of the air release valve of the present utility model;

[0019] Figure 4 An exploded view of the utility model;

[0020] Figure 5 This is the second stereoscopic view of the present invention.

[0021] The main component symbols are described as follows:

[0022] 1. Air excitation assembly; 11. Air release valve; 12. Solenoid excitation valve; 13. Piston; 14. Spring slot; 15. Compression spring; 16. Excitation cavity; 17. Excitation air inlet; 18. Excitation air outlet; 19. Middle cavity airway; 2. Air inlet pipe; 21. Air inlet valve; 3. Air outlet pipe; 4. Bucket; 5. Protective box; 51. Pressure relief port. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0024] In the following description, examples are provided to provide a deeper understanding of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. It should be understood that the specific embodiments described are only for the purpose of explaining the present invention and are not intended to limit the present invention.

[0025] It should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the stated features, integers, steps, operations, elements or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.

[0026] See also Figure 1-Figure 5The utility model is a piston-type air excitation cannon, comprising an air inlet pipe 2, an air excitation component 1 and an air outlet pipe 3 connected in sequence by air paths, the air inlet pipe 2 is connected to an air compressor or an external high-pressure air source at one end away from the air excitation component 1; the air outlet pipe 3 is provided with an inverted bucket 4 at one end away from the air excitation component 1, and the inverted bucket 4 is arranged opposite to the pipe opening of the air outlet pipe 3; the air excitation component 1 comprises an air release valve 11 and an electromagnetic excitation valve 12, the air release valve 11 comprises an excitation cavity 16 and an excitation air inlet 17 and an air outlet valve port arranged at both end surfaces, a piston is provided in the excitation cavity, the piston 13 makes a reciprocating motion in the air release valve 11 to control the opening and closing of the air outlet valve port, and the air outlet valve port can be effectively blocked by the piston 13 , to prevent the compressed gas from leaking, and then to achieve the compression storage of compressed gas with a higher pressure. The air release valve 11 can store at most about 200kg of compressed gas to create a stronger impact effect; an excitation outlet 18 is provided on the side of the air release valve 11, and the other end of the air outlet pipe 3 is connected to the air outlet valve port. An excitation outlet 18 connected to the excitation cavity 16 is provided on the side of the air release valve 11, and the electromagnetic excitation valve 12 is connected to the excitation outlet 18. The air release valve 11 is also formed with a middle cavity airway 19 connected to the air outlet valve port. The other end of the air inlet pipe 2 is connected to the excitation inlet 17 and the middle cavity airway. duct 19; the air release valve 11 is threadedly connected to the air inlet pipe 2 and the air outlet pipe 3; the electromagnetic excitation valve 12 is connected to the air path of the air release valve 11 through the excitation outlet port 18. Since the electromagnetic excitation valve 12 is connected to the internal air path of the air release valve 11, when the external high-pressure gas source injects compressed gas, the compressed gas passes through the excitation air inlet 16 to the air release valve 11 to impact the piston 13 to squeeze and block the air outlet valve port, so that the air pressure of the excitation cavity 16 and the middle cavity air channel 19 is equal, and the air release valve 11 stores compressed gas. When the external gas source is disconnected, the air inlet pipe 2 acts as a high-pressure gas storage unit. When the air cannon is released, the electromagnetic excitation valve 12 is first operated to open the excitation outlet 17 to discharge the compressed gas in the excitation cavity 16 from the electromagnetic excitation valve 12. At this time, the air pressure in the excitation cavity 16 and the middle cavity air duct 19 are different. The pressure in the excitation cavity 16 cannot push the piston 13 to block the outlet valve port. Therefore, the outlet valve port is opened, and the compressed gas in the middle cavity air duct 19 and the air inlet pipe 2 is released and impacts the bucket 4. The utility model can accumulate up to 120kg of high-pressure gas, which can have a shocking visual impact effect in actual application scenarios.

[0027] When the electromagnetic excitation valve 12 controls the excitation outlet 18 to open, part of the compressed gas in the excitation cavity 16 is poured into the excitation outlet 18 to the electromagnetic excitation valve 12 and discharged out of the valve, and the piston 13 is weakened by the thrust of the compressed gas, while the gas in the middle cavity air channel 19 pushes the piston 13 toward the direction of the intake pipe 2. At this time, the outlet valve is opened, and the compressed gas accumulated in the intake pipe flows out from the gap of the outlet valve through the middle cavity air channel 19, and instantly impacts the bucket 4 from the outlet pipe 3, causing a strong impact effect. Inflammable materials, such as gasoline and combustible mixture, can be placed on the bucket 4. In actual application scenarios, when the compressed gas impacts the bucket 4, the gasoline is impacted by the compressed gas. The gas can be spread into the air, and then the floating gasoline is ignited by a pre-set igniter, thereby achieving the effect of instantaneous explosion. Compared with gunpowder detonation, the instantaneous explosion effect created by dispersing gasoline through air cannon impact is safer and more environmentally friendly. At the same time, the cost will be lower than that of gunpowder blasting, and the air cannon can be reused, and the product is more practical. Mud or light imitation mud and sand and other materials can also be added to the bucket 4. When the compressed gas impacts the bucket 4, the effect of object explosion and projection can be achieved. Or the air cannon can be placed on the bottom of the water. When the compressed gas impacts the bucket 4 or the outlet of a similar bucket-shaped structure, the compressed gas will disperse the water, generating high and fast waves, thereby achieving the visual effect of underwater explosion.

[0028] The working principle of this utility model is:

[0029] First, one end of the air intake pipe 2 is connected to the air compressor or an external high-pressure air source, and the other end is connected to the air release valve 11. The air intake valve 21 is opened, and the compressed gas enters from the air intake pipe 2 and fills the excitation cavity 16 and the middle cavity air channel 19 of the air release valve 11. After closing the air intake valve 21, the air intake pipe 2 now acts as a high-pressure gas storage unit. The high-pressure gas is stored in the air intake pipe. At this time, it takes a certain amount of time for the compressed gas to completely fill the excitation cavity 16 of the air release valve 11. The compressed gas injected into the excitation cavity 16 will push the piston 13 in the excitation cavity 16 to seal the air outlet valve port. At this time, compressed gas is continuously injected into the air release valve 11 to form a high-pressure environment. When the internal air pressure reaches a certain level, the external air compressor stops injecting compressed gas, and the air cannon is on standby. When the ignition valve is turned on, the air inlet 17 of the air release valve 11 is turned off, and the air inlet 17 of the air release valve is turned off, and the air inlet 17 of the air release valve is turned off, so that the air inlet 17 of the air release valve turns off, and the air inlet 17 of the air release valve turns off, and the air inlet 17 of the air release valve turns off, so that the air inlet 17 of the air release valve turns off, and the air inlet 17 of the air release valve turns off, and the air inlet 17 of the air release valve turns off, so that the air inlet 17 of the air release valve turns off, and the air inlet 17 of the air release valve turns off, turns off, and the air inlet 17 of the air release valve turns off.

[0030] See also Figure 3In this embodiment, the diameter of the excitation air inlet 17 is smaller than the diameter of the excitation air outlet 18. Since the diameter of the excitation air inlet 17 is much smaller than the diameter of the excitation air outlet 18, the diameter ratio of the excitation air inlet 17 to the excitation air outlet 18 is approximately 1:20, but it is not limited to this. The diameter ratio of the two can be adjusted to control the flow rate of the compressed gas. Therefore, when the excitation air outlet 18 is opened, the internal gas will flow into the electromagnetic excitation valve and be discharged out of the valve, and the rapid release of pressure will cause the pressure of the excitation cavity 16 to be much smaller than the pressure of the middle cavity air channel 19 to form a pressure difference. The pressure of the middle cavity air channel 19 is greater than the pressure of the excitation cavity 16, so that the piston 13 is pushed out of the valve port by the compressed gas in the middle cavity air channel 19, so that the compressed gas in the middle cavity air channel 19 near the outlet valve port can flush the piston 13 and be quickly released from the outlet valve port, and finally the internal and external pressure difference of the air release valve 11 When the electromagnetic excitation valve 12 controls the excitation outlet 18 to open, the compressed gas is discharged from the electromagnetic excitation valve 12, and the pressure of the excitation cavity 16 is instantly reduced. Part of the compressed gas in the air release valve 11 is also poured into the excitation cavity 16, but because the excitation air inlet 17 of the excitation cavity 16 has a very small diameter and the excitation outlet 18 is already opened, the amount of compressed gas entering is very limited. At this time, the pressure in the excitation cavity 16 is not enough to support the piston 13, causing the piston 13 to move rapidly toward the direction of the air inlet pipe 2. At this time, the air outlet valve is quickly opened, and the compressed gas stored inside continuously squeezes and pushes the piston 13, flowing out from the gap between the air outlet valve and the piston 13 and instantly impacting the bucket 4, causing a strong impact effect, thereby realizing various different applications.

[0031] See also Figure 1 and Figure 3In this embodiment, a spring groove 14 is provided on the end face of the piston 13, and a compression spring 15 is provided in the spring groove 14. The two ends of the compression spring 15 are respectively fixedly connected to the bottom surface of the spring groove 14 and the inner wall surface of the excitation air inlet 17 of the air release valve 11; when the gas in the air release valve 11 is released, the air pressure of the air release valve 11 is balanced with the external air pressure, and the compression spring 15 stretches and rebounds to make the piston 13 block the air outlet valve port; the compression spring 15 in the utility model is in a compressed state. When the piston 13 is impacted by the compressed gas, the piston 13 is squeezed to block the air outlet valve port. At this time, the air pressure at both ends of the piston 13 remains balanced, and the elasticity of the compression spring 15 The thrust of the force combined with the air pressure is greater than the other end of the piston 13, so that the piston 13 is compressed. When the compressed gas is stopped being injected into the air release valve 11, the electromagnetic excitation valve 12 opens and excites the air outlet 18 to change the air pressure on the side of the compression spring 15, so that the air pressure on this side of the piston 13 and the compression spring 15 is less than the air pressure on the other side of the piston 13. Therefore, the piston 13 is pushed away from the air outlet valve port by the gas gushing out from the middle cavity airway 1919. At this time, the compression spring 15 is further compressed. When the compressed gas is exhausted, the compression spring 15 provides elastic force to push the piston 13 back to the air outlet valve port and seal it, so that the inside of the air release valve 11 is sealed under normal pressure, which can also prevent foreign matter from entering the air release valve 11.

[0032] See also Figure 1-Figure 2 In this embodiment, the air release valve 11 is provided with a protective box body 5, and the protective box body 5 is provided with a pressure relief port 51 for pressure relief. By setting the pressure relief port 51 connected to the outside world, it is ensured that the air release valve 11 can reduce pressure through the electromagnetic excitation valve 12 to ensure safety.

[0033] See also Figure 1-Figure 2 In this embodiment, an intake valve 21 is provided on the intake pipe 2 to control the on-off of the intake pipe 2. When compressed gas of sufficient pressure is injected into the exhaust valve 11, the compressed gas is blocked by closing the valve of the intake valve 21, and the compressed gas is released in combination with the electromagnetic excitation valve 12 to further cause a stronger impact.

[0034] In this embodiment, at least one sealing ring is further included, which is sleeved on the piston. When the piston blocks the air outlet valve port, the sealing ring is used to seal the gap between the piston and the air outlet valve port. In the present utility model, the air tightness of the air cannon is increased by increasing the number of sealing rings. The sealing ring can also be set on the piston cylinder to seal the gap between the piston and the cylinder body. The sealing ring can also be set on the inner joint surface of the air intake pipe 2 and the air intake pipe end cover and the valve body of the air release valve 11 to seal the gap between the two pipes and the air release valve 11. The above settings can well increase the air tightness of this product.

[0035] The advantages of this utility model are:

[0036] 1) The utility model injects compressed gas through the air release valve and sets a piston inside the air release valve to block the air outlet of the air release valve and store the compressed gas at a pressure of up to 120kg. The electromagnetic excitation valve is used to change the internal air pressure of the air release valve to release the compressed gas, resulting in a powerful impact effect.

[0037] The above disclosures are only a few specific embodiments of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A piston-type air-excitation cannon, characterized in that: include: An air inlet pipe, an air excitation component, and an air outlet pipe are connected in sequence by air circuits, wherein one end of the air inlet pipe away from the air excitation component is connected to an external air compressor; an end of the air outlet pipe away from the air excitation component is provided with an inverted bucket, and the inverted bucket is arranged opposite to the pipe opening of the air outlet pipe; The air excitation component includes an air release valve and an electromagnetic excitation valve, the air release valve includes an excitation cavity and an excitation air inlet and an air outlet valve port arranged on both end surfaces, a piston is provided in the excitation cavity, and the piston reciprocates in the air release valve to control the opening and closing of the air outlet valve port; the other end of the air outlet pipe is connected to the air outlet valve port; an excitation air outlet connected to the excitation cavity is provided on the side of the air release valve, and the electromagnetic excitation valve is connected to the excitation air outlet; the air release valve is also formed with a middle cavity airway connected to the air outlet valve port, and the other end of the air inlet pipe is connected to the excitation air inlet and the middle cavity airway; When the external air compressor compresses the gas and injects it into the air release valve, the compressed gas passes through the excitation air inlet into the air release valve to impact the piston, squeeze and seal the air outlet valve port, and fills the air release valve through the middle cavity air channel, so that the air release valve stores compressed gas. The electromagnetic excitation valve operates to open the excitation air outlet, and the compressed gas in the excitation cavity flows into the electromagnetic excitation valve to make the piston retreat, and the air outlet valve port releases the compressed gas to impact the bucket.

2. A piston-type air excitation cannon according to claim 1, characterized in that: The end face of the piston is provided with a spring groove, and a compression spring is provided in the spring groove. The two ends of the compression spring are respectively fixedly connected to the bottom surface of the spring groove and the inner wall surface of the air release valve having the excitation air inlet; when the gas in the air release valve is released, the air release valve is balanced with the external air pressure, and the compression spring stretches and rebounds to make the piston seal the air outlet valve port.

3. A piston-type air excitation cannon according to claim 1, characterized in that: It also includes at least one sealing ring, which is sleeved on the piston. When the piston blocks the air outlet valve, the sealing ring is used to seal the gap between the piston and the air outlet valve.

4. A piston-type air excitation cannon according to claim 1, characterized in that: The air release valve is outer-circuited with a protection box body, and the protection box body is provided with a pressure relief port for pressure relief.

5. A piston-type air excitation cannon according to claim 1, characterized in that: The diameter of the excitation air inlet is smaller than that of the excitation air outlet, so that the air pressure passing through the excitation air inlet is lower than the air pressure passing through the excitation air outlet.

6. A piston-type air excitation cannon according to claim 1, characterized in that: The air release valve is threadedly connected to the air inlet pipe and the air outlet pipe.

7. A piston-type air excitation cannon according to claim 1, characterized in that: The air intake pipe is provided with an air intake valve for controlling the on-off of the air intake pipe.

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