Gas cylinder type display shell and its detonation method

Abstract

The present application belongs to the technical field of fireworks products, and particularly relates to a gas cylinder type display shell, which comprises a shell, a head, a gas cylinder, a micro ignition circuit and effect stars; the gas cylinder is arranged in the shell and connected with the micro ignition circuit through a release wire; a plurality of firing holes are formed on the surface of the head, the effect stars are arranged at the inner side end of the firing holes, and a firing head is arranged at the center of the head to synchronously ignite the plurality of effect stars; the micro ignition circuit supports radio remote control and pre-programmed countdown dual-mode triggering, and is provided with a delay mechanism to ensure that the stars are ignited and then release high-pressure gas, so that the stars are pushed out through the firing holes to form a fireworks effect. The present application uses a high-pressure gas cylinder to replace open bag explosives, greatly reduces the safety hazards of the product, avoids smoke emission of the open explosives, and enables the shell to fall as a whole after the opening of the explosives, thereby reducing the cleaning burden of the site and having the comprehensive advantages of safety, environmental protection, precision and easy maintenance.

Description

Technical Field

[0001] This invention relates to the field of fireworks technology, specifically to a gas cylinder-type firework shell and its detonation method. Background Technology

[0002] Firework shells are the core component of large-scale fireworks displays. The traditional production and use of fireworks shells has followed a logic that has persisted for decades. Their core propulsion and detonation system rely entirely on gunpowder. The entire system requires three types of gunpowder: propellant, detonating charge (opening charge), and effect stars. The propellant propels the shell to a predetermined altitude, while the detonating charge, through a powerful explosion and shockwave, disperses the effect stars into the air, ultimately creating light and shadow effects as they burn. This type of technology, because the detonating charge cannot be omitted, suffers from the following drawbacks: 1. Opened explosives are highly explosive hazardous materials, and their production, transportation, storage, and ignition must be strictly controlled throughout the entire process. This not only significantly increases operating costs but also poses extremely high safety hazards. In recent years, environmental and safety control policies for fireworks and firecrackers have been continuously tightened in various regions, further limiting the application scenarios of traditional gunpowder-based fireworks shells. 2. The setting off of traditional fireworks shells produces three types of smoke: ground-based smoke from the burning propellant, airborne smoke from the explosion of the propellant, and effect smoke from the burning of the effect stars. Among them, the propellant accounts for 30%-40% of the total propellant in traditional fireworks shells and is the main source of airborne smoke. Large-scale setting off of fireworks shells can easily cause local air pollution and reduced visibility, which not only affects the viewing experience but also does not meet the requirements of green and low-carbon development. 3. Traditional fireworks shells mostly use paper shells and are produced in a semi-automated manner, resulting in large weight tolerances in the finished products. This makes it difficult to match precise ballistic calculations and meet the requirements of new fireworks displays such as formation flight and fixed-point formations. At the same time, the explosion process of the explosive charge is uncontrollable, which can easily lead to problems such as uneven dispersion of sparks and deviations in detonation height. In addition, after traditional fireworks shells explode, the shell is completely shattered, and paper debris is scattered over a large area, significantly increasing the burden of site cleaning.

[0003] Therefore, there is an urgent need to design a new type of firework shell that can break through the limitations of the traditional gunpowder detonation system, achieve detonation without using traditional detonating powder, and take into account the three requirements of safety, accuracy and environmental protection. Summary of the Invention

[0004] The purpose of this invention is to overcome at least one of the shortcomings of the prior art and provide a gas cylinder-type firework shell.

[0005] To achieve the above objectives, the present invention employs a gas cylinder-type fireworks shell, comprising a shell and a projectile. The shell contains a gas cylinder filled with high-pressure gas. The gas cylinder has a release line; when energized, the gas cylinder releases the high-pressure gas. The projectile is hemispherical, with several launch holes, all pointing outwards from the center of the projectile. An effect star is positioned at one end of the launch hole near the center of the projectile. A mesh and an ignition head are also provided at the center of the projectile. The mesh catches the gas cylinder plug that pops out after the gas cylinder is triggered. The ignition head is connected to the effect star and ignites it. A miniature ignition circuit is also provided within the shell, electrically connected to the ignition head via an ignition wire. The miniature ignition circuit is electrically connected to the release line.

[0006] Furthermore, the miniature ignition circuit includes a wireless signal receiving module.

[0007] Furthermore, the miniature ignition circuit supports two detonation modes: radio remote control and pre-programmed countdown. In the radio remote control mode, the miniature ignition circuit triggers the ignition head after receiving an external wireless detonation signal. In the pre-programmed countdown mode, the miniature ignition circuit internally times the time after the firework leaves the launch port, and automatically triggers the ignition head when the preset time point is reached.

[0008] Furthermore, the miniature ignition circuit is also equipped with a gas cylinder delay mechanism, which starts timing after the ignition head ignites the celestial body, and after a preset time, the release line is energized to trigger the gas cylinder.

[0009] Furthermore, a pressure plate is provided in the launch hole to prevent the effect star from falling out from the outer end of the launch hole during transportation and storage.

[0010] Furthermore, the ignition head is connected to multiple effect stars via a quick-connect wire.

[0011] Furthermore, the fast fuses are arranged radially from the ignition head, with each fast fuse corresponding to multiple effect stars. After the ignition head ignites the fast fuses, the fast fuses will instantly spread outwards and simultaneously ignite each effect star.

[0012] Furthermore, the cartridge case is a hard shell, and the entire cartridge case falls off after the fireworks explode.

[0013] Furthermore, the cartridge case is equipped with a parachute, which is triggered by a micro-ignition circuit within a predetermined time after detonation. The parachute consists of a canopy and a compressed gas canister. The compressed gas canister is connected to the micro-ignition circuit. Upon receiving a signal from the micro-ignition circuit, the compressed gas canister is triggered to release gas, thus expanding the canopy and slowing the cartridge case's descent. The parachute can also employ any other existing technology or structure capable of achieving a slow descent of the cartridge case.

[0014] Furthermore, the diameter of the launch port near the center of the warhead is smaller than that of the effect star, to prevent the effect star from falling out from the end near the center of the warhead.

[0015] Furthermore, two warheads can be provided, one at each end of the cartridge case, to create a spherical firework effect. The two warheads can be opened separately using a separate gas cylinder, or they can be opened using the same gas cylinder.

[0016] This invention also provides a method for detonating the above-mentioned gas cylinder-type fireworks shell, comprising the following steps: S1. Launch the fireworks into the air; S2. When the miniature ignition circuit receives a wireless detonation signal or reaches a pre-programmed countdown node, the ignition head ignites the star. S3. After a preset time, starting from the ignition head igniting the effect star, the micro ignition circuit energizes the release line to trigger the gas cylinder, causing the high-pressure gas to quickly push the fully ignited effect star out through the launch hole, forming a firework effect in the air. S4. The cartridge case falls as a whole. If the cartridge case is equipped with a parachute, the micro ignition circuit will trigger the parachute to deploy after a preset time, causing the cartridge case to fall slowly.

[0017] The advantages of this invention compared to the prior art are as follows: 1. This invention eliminates the 30%-40% of the opening charge in traditional fireworks shells, greatly reducing the safety hazards of high explosives in the production, transportation, storage and ignition stages; it significantly reduces the safety management costs and compliance difficulties throughout the entire life cycle of fireworks shell products, and broadens the application scenarios of fireworks shells; 2. This invention eliminates the "airborne explosion smoke" caused by the explosion of the propellant by replacing the opening charge with a gas cylinder. If further combined with a low-smoke sulfur-free formula effect star and a compressed air launch system, it can simultaneously remove the "ground-based rising smoke" generated by the propellant and the combustion smoke of the effect star, achieving a near-smokeless combustion effect throughout the entire process. This effectively avoids local air pollution and reduced visibility caused by large-scale combustion, greatly enhances the viewing experience, and conforms to the development trend of green environmental protection. 3. This invention enables standardized production to achieve uniform gravity distribution and minimal weight tolerance in fireworks shells, allowing for precise matching of trajectory calculations and providing a hardware foundation for complex and challenging fireworks displays such as formation flight and fixed-point formations. Simultaneously, the miniature ignition circuit allows for dual triggering modes: radio remote control or pre-programmed countdown. This enables precise detonation at a designated height. Combined with the stable and controllable gas thrust from the gas cylinder, replacing the uncontrollable explosive shockwave, this effectively solves the problems of uneven dispersion and detonation height deviation in traditional fireworks shells, ensuring the integrity and consistency of the fireworks formations. 4. The present invention is equipped with a gas cylinder delay mechanism. After the ignition head ignites the effect star, a fixed time is reserved to ensure that the effect star is fully burned before the gas cylinder is triggered to release gas. This mechanism effectively avoids the "misfire" phenomenon caused by the star being pushed out before it is ignited, and greatly improves the reliability and success rate of the product's ignition. 5. The present invention can use a hard material shell, so that the shell can fall with its overall integrity after detonation, which is different from the large area of ​​debris scattered after traditional paper fireworks explode; it reduces the burden of site cleanup and reduces the residual environmental impact on urban core areas and ecological protection areas; in some embodiments, a parachute can also be equipped on the shell to further reduce the impact of the shell falling and improve the convenience of recovery. 6. This invention can connect the ignition head to multiple effect stars through radially arranged rapid fuses. At the moment of ignition, the flame spreads outward along the rapid fuses instantly, achieving synchronous ignition of dozens of effect stars, ensuring the synchronicity of the combustion of effect stars and the consistency of visual effects when the fireworks explode. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the fireworks shell in Embodiment 1 of the present invention; Figure 2 This is a cross-sectional schematic diagram of the firework shell in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of an explosion of a firework shell in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the dual-headed firework shell in Embodiment 2 of the present invention; In the diagram: 1. Cartridge casing; 2. Projectile; 21. Launch port; 3. Gas cylinder; 4. Miniature ignition circuit; 5. Ignition wire; 6. Release wire; 7. Parachute. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art. Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as commonly understood by those skilled in the art.

[0020] Example 1

[0021] like Figure 1-3As shown, this embodiment is a gas cylinder-type fireworks shell, including a shell 1 and a projectile 2. A gas cylinder 3, filled with high-pressure gas, is disposed inside the shell 1. The gas cylinder 3 is equipped with a release line 6, which, when energized, releases the high-pressure gas. The projectile 2 is hemispherical, with several firing holes 21, all pointing outwards from the center of the projectile 2. An effect star is positioned at one end of the firing hole 21 near the center of the projectile 2. A mesh and an ignition head are also provided at the center of the projectile 2. The mesh is used to catch the gas cylinder plug that pops out after the gas cylinder 3 is triggered. The ignition head is connected to the effect star. A miniature ignition circuit 4 is also disposed inside the shell 1, electrically connected to the ignition head via an ignition wire 5. The miniature ignition circuit 4 is electrically connected to the release line 6.

[0022] In this embodiment, the miniature ignition circuit 4 includes a wireless signal receiving module. This enables the miniature ignition circuit 4 to support two detonation modes: radio remote control and pre-programmed countdown. In the radio remote control mode, the miniature ignition circuit 4 triggers the ignition head after receiving an external wireless detonation signal. In the pre-programmed countdown mode, the miniature ignition circuit 4 internally times the timer after the firework leaves the launch port, automatically triggering the ignition head after reaching a preset time point. The miniature ignition circuit 4 also includes a gas cylinder delay mechanism, which starts timing after the ignition head ignites the effect star, and after a preset time, energizes the release line 6 to trigger the gas cylinder 3.

[0023] In this embodiment, a pressure plate is also provided in the emission hole 21. The pressure plate is used to prevent the effect star from falling out from the outer end of the emission hole 21 during transportation and storage.

[0024] In this embodiment, the ignition head is connected to multiple effect stars via quick-release leads. The quick-release leads are arranged radially around the ignition head, with each quick-release lead corresponding to multiple effect stars. After the ignition head ignites the quick-release leads, the quick-release leads will instantly spread outward and simultaneously ignite each effect star.

[0025] In this embodiment, the cartridge case 1 is a rigid shell, and the cartridge case 1 falls as a whole after the fireworks explode. The cartridge case 1 is also equipped with a parachute 7, and the miniature ignition circuit 4 triggers the deployment of the parachute 7 within a set time after the explosion is completed.

[0026] The detonation method of the Type 3 firework shell in this embodiment includes the following steps: S1. Launch the fireworks into the air; specifically, compressed gas can be used for launching to further reduce smoke emissions; S2. When the miniature ignition circuit 4 receives the wireless detonation signal or reaches the pre-programmed countdown node, the ignition head ignites the rapid fuse, and then the rapid fuse synchronously ignites multiple effect stars. S3. After a preset time, starting from the ignition head igniting the effect star, the micro ignition circuit 4 energizes the release line 6 to trigger the gas cylinder 3, so that the high-pressure gas quickly pushes the fully ignited effect star out through the launch hole 21 to form a firework effect in the air. S4. The cartridge case 1 falls as a whole. If the cartridge case 1 is equipped with a parachute 7, the micro ignition circuit 4 will trigger the parachute 7 to deploy after a preset time, causing the cartridge case 1 to fall slowly.

[0027] Example 2

[0028] like Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that two warheads 2 are provided, one at each end of the cartridge case 1. Each of the two warheads 2 is opened through a gas cylinder 3. The double-warhead fireworks shell in this embodiment can form spherical fireworks in the air after detonation.

[0029] The above are only some embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various combinations and modifications of the aforementioned technical features. Any improvements, modifications, equivalent substitutions, or applications of the structure or method of the present invention to other fields to achieve the same effect without departing from the spirit and scope of the present invention shall fall within the protection scope of the present invention.

Claims

1. A gas cylinder-type fireworks shell, comprising a shell casing and a projectile, characterized in that: The cartridge case contains a gas cylinder filled with high-pressure gas; the gas cylinder is equipped with a release line, which, when energized, causes the gas cylinder to release the high-pressure gas. The warhead is hemispherical and has several firing holes, all pointing outwards from the center of the warhead. An effect star is placed at one end of the firing hole near the center of the warhead. A grid and an ignition head are also placed at the center of the warhead. The ignition head is connected to the effect star. A miniature ignition circuit is also provided inside the cartridge case, which is electrically connected to the ignition head via an ignition wire; the miniature ignition circuit is also electrically connected to the release wire.

2. The gas cylinder-type firework shell according to claim 1, characterized in that: The miniature ignition circuit includes a wireless signal receiving module, enabling the miniature ignition circuit to support two detonation modes: radio remote control and pre-programmed countdown. In the radio remote control mode, the miniature ignition circuit triggers the ignition head after receiving an external wireless detonation signal. The pre-programmed countdown mode is a countdown timer that is generated internally by a miniature ignition circuit after the firework leaves the launch port, and the ignition head is automatically triggered when the preset time point is reached.

3. The gas cylinder-type firework shell according to claim 2, characterized in that: The miniature ignition circuit is also equipped with a gas cylinder delay mechanism, which starts timing after the ignition head ignites the effect star, and after a preset time, the release line is energized to trigger the gas cylinder.

4. The gas cylinder-type firework shell according to claim 1, characterized in that: A pressure plate is also provided in the firing port, which is used to prevent the effect star from falling out from the outer end of the firing port during transportation and storage.

5. The gas cylinder-type firework shell according to claim 1, characterized in that: The ignition head is connected to multiple effect stars via a quick-connect wire.

6. The gas cylinder-type firework shell according to claim 5, characterized in that: The rapid fuses are arranged radially from the ignition head, with each rapid fuse corresponding to multiple effect stars. After the ignition head ignites the rapid fuses, the rapid fuses will instantly spread outward and simultaneously ignite each effect star.

7. The gas cylinder-type firework shell according to claim 1, characterized in that: The cartridge case is a hard shell, and the entire cartridge case falls off after the fireworks explode.

8. The gas cylinder-type firework shell according to claim 7, characterized in that: The cartridge case is also equipped with a parachute, and the miniature ignition circuit triggers the parachute to deploy within a set time after detonation.

9. The gas cylinder-type firework shell according to claim 1, characterized in that: There are two projectiles, one at each end of the cartridge case.

10. A method for detonating a gas cylinder-type firework shell, used for any one of claims 1-9, characterized in that, Includes the following steps: S1. Launch the fireworks into the air; S2. When the miniature ignition circuit receives a wireless detonation signal or reaches a pre-programmed countdown node, the ignition head ignites the star. S3. The timing starts from the ignition head igniting the effect star. After a preset time, the micro ignition circuit energizes the release line to trigger the gas cylinder, causing the high-pressure gas to quickly push the fully ignited effect star out through the launch hole, forming a firework effect in the air. S4. The cartridge case falls as a whole. If the cartridge case is equipped with a parachute, the micro ignition circuit will trigger the parachute to deploy after a preset time, causing the cartridge case to fall slowly.

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