Gas explosion device, gas explosion system and detonation method applied to film and television firework special effect

Abstract

The application provides a gas explosion device, a gas explosion system and an ignition method applied to a film and television fireworks special effect. The gas explosion device comprises: a combustible medium container for storing combustible medium; a driving assembly comprising a driving assembly body with a first cavity and a moving piece, the moving piece being located in the first cavity, the moving piece comprising a puncture part; a driving piece arranged in the first cavity and located on one side of the moving piece, used for generating driving kinetic energy to push the moving piece to move; and a first charge arranged in the puncture part of the moving piece, used for ignition after the puncture part pierces into the combustible medium container, so as to ignite the combustible medium in the combustible medium container. The gas explosion device, the gas explosion system and the ignition method are used to achieve the effect of instantaneous complete explosion under the condition of meeting safety.

Description

Technical Field

[0001] This application relates to the technical field of pyrotechnic special effects devices and explosive devices, and in particular to a gas explosion device, gas explosion system and detonation method for use in film and television pyrotechnic special effects. Background Technology

[0002] Film and television pyrotechnics refers to various artistic pyrotechnic effects, including smoke, fog, fire, light, sound, and explosions, presented in film and television scenes and live performances. In film and television production and large-scale live performances, pyrotechnic effects are a key means of creating visual scenes such as explosions, gunfights, and fantasy. The ignition point refers to the point at which a flammable substance is ignited, producing an instantaneous deflagration effect. Commonly used flammable media include powders (such as carbon powder), liquid fuels (such as gasoline and diesel), and liquefied flammable gases (such as butane and propane).

[0003] Liquefied gas ignition points, due to their relatively gentle explosive force, small shock wave, and short minimum safe distance, are particularly suitable for close-up filming of actors or scenes with high safety requirements. Traditional flammable gas ignition points typically employ external detonation, placing a liquefied gas storage tank (such as a butane tank) at the ignition point and detonating it using pyrotechnics (i.e., an electric igniter or explosive charge) placed externally. The explosive energy acts on the gas tank in two main ways: 1) directly rupturing the tank; 2) driving mechanical components (such as a firing pin) to puncture the tank, subsequently igniting the leaking flammable gas.

[0004] However, with traditional detonation methods, liquefied combustible gases often fail to completely and rapidly vaporize at the moment of explosion due to heat absorption during vaporization and sudden pressure changes, resulting in some combustible media remaining in liquid form. This causes continuous and unexpected combustion at the blast site after the explosion, which does not match the visual effect of "instantaneous combustion and explosion" and poses a fire hazard. Furthermore, a large amount of combustible media does not participate in the violent combustion and explosion reaction, resulting in insufficient energy release, leading to a small flame ball, short duration, and weakened visual impact, i.e., "weakened blast site effect."

[0005] Therefore, there is an urgent need for a ignition point generating device that can improve the utilization rate of liquefied combustible gas, ensure instantaneous complete combustion, and provide higher safety. Summary of the Invention

[0006] The gas explosion device, gas explosion system, and detonation method provided in this application embodiment for use in film and television pyrotechnic effects are designed to achieve an instantaneous and complete explosion effect while meeting safety requirements.

[0007] In a first aspect, embodiments of this application provide a gas explosion device, comprising: a combustible medium container for storing combustible medium; a driving assembly including a driving assembly body having a first cavity and a movable member, the movable member being located within the first cavity and including a puncture portion; a driving member disposed within the first cavity and located on one side of the movable member, for generating driving kinetic energy to drive the movable member to move; and a first explosive charge disposed within the puncture portion of the movable member, for igniting after the puncture portion punctures the combustible medium container, thereby detonating the combustible medium within the combustible medium container.

[0008] The gas explosion device provided in this application combines the mechanical propulsion of the driving component with the internal detonation of the first explosive charge. This allows the piercing part to first directionally penetrate the flammable medium container, and then directly apply the detonation energy to the inside of the flammable medium container. This establishes a more direct combustion triggering path within the flammable medium container, causing the liquefied gas inside the flammable medium container to be instantly vaporized and ignited, resulting in an instantaneous and complete explosion.

[0009] In one possible embodiment, the movable element is sealed and slidably disposed within the first cavity.

[0010] By sealing and sliding the movable component within the first cavity, the gas released by the driving component can more effectively propel the movable component forward. The piercing part carried by the movable component can acquire sufficient kinetic energy within a shorter stroke to reliably pierce the flammable medium container, thereby improving the piercing success rate and the timeliness of the internal detonation of the flammable medium container, while reducing pressure loss and energy waste.

[0011] In one possible embodiment, the puncture site includes a puncture site body having a second cavity for receiving a first drug pack, and the puncture site body having a sharp end.

[0012] By incorporating a second cavity and a sharp tip into the puncture head, the sharp tip reduces penetration resistance, while the second cavity provides a stable containment space for the first explosive charge. This ensures puncture reliability, improves the accuracy of the first explosive charge's detonation, makes the flame release position more controllable and the deflagration more complete, and helps reduce flammable medium residue and trailing combustion, thereby enhancing the repeatability and safety adaptability of the gas explosion device in film and television shooting and stage performances.

[0013] In one possible embodiment, the puncture site body has a first through hole.

[0014] The gas explosion device provided in this application provides gas exchange and pressure balance conditions for the internal ignition of the flammable medium container by distributing first through holes in the puncture section body. The energy after the first explosive charge is ignited is no longer limited to the local enclosed space but can more fully act on the flammable medium inside the container, promoting its vaporization and combustion. This improves the integrity of the deflagration and the concentration of the flame, reducing liquid residue and trailing combustion phenomena. The optimization of the pressure release path by the first through holes also allows the puncture, ignition, and explosion processes to be completed stably according to a predetermined sequence. While ensuring the strength of the puncture section, it improves the ignition efficiency and energy transfer effect of the first explosive charge, thereby enhancing the consistency of the flame performance and the safety of use of the gas explosion device.

[0015] In one possible embodiment, the gas explosion device further includes a safety chamber for containing a flammable medium container and having one side open; the safety chamber is in communication with the drive assembly body so that the moving part moves to the safety chamber under the drive of the drive assembly and the piercing part pierces into the flammable medium container.

[0016] The embodiments of this application, by opening one side of the safety chamber and connecting it to the drive component body, provide positioning support for the flammable medium container and also create a constraint space outside the container. This limits the dispersion of fragmented parts to non-target areas during deflagration, causing flames and jet streams to concentrate and release along the predetermined opening direction. This improves deflagration completeness and flame formation stability while reducing the impact risk to personnel, equipment, and surrounding structures. It also improves the transmission efficiency of detonation within the flammable medium container, facilitating a more concentrated, consistent, and controllable ignition point effect.

[0017] In one possible embodiment, a protective plate is also included, which covers the open side of the safety compartment and has a second through hole to allow the explosive flame of the flammable medium to be ejected in a directional manner.

[0018] The embodiments provided in this application utilize a protective plate with a second through-hole. This protective plate covers the open side of the safety chamber, allowing the high-temperature flames and impact gas generated by the deflagration to exit along the path defined by the second through-hole. The flame pattern is more concentrated and the spray direction is more defined under the guidance and constraint of the protective plate, thus facilitating the formation of a predictable flame profile and reducing the probability of debris escape. Through the cooperation of the protective plate and the second through-hole, this application enables the flames generated after detonation inside the container to be released in a designated direction. This improves the directionality and repeatability of the flame effects, enhances safety and controllability during on-site use, and is particularly suitable for gas explosion special effects scenarios with high requirements for flame direction, camera performance, and surrounding protection.

[0019] In one possible embodiment, the driving component is a second explosive charge, which contains a first igniter. The driving component body has a third through hole, and a first wire is connected to the first igniter through the third through hole. Power is supplied to the first wire to ignite the second explosive charge.

[0020] The embodiments provided in this application, by setting a first igniter in the second explosive charge and opening a third through hole in the drive component body for the first wire to pass through, realize the connection between the first wire and the first igniter, making the ignition path direct and the energy transfer clear, the ignition time of the second explosive charge easier to control precisely, thereby making the starting response of the moving part more stable, and also helping to improve the consistency of subsequent puncture actions and the overall reliability of the device.

[0021] In one possible embodiment, the first medicine pack contains a second igniter, the drive assembly body has a fourth through hole, and the second wire is connected to the second igniter through the fourth through hole.

[0022] The second wire is used to receive power to ignite the first explosive charge after the puncture site is inserted into the flammable medium container.

[0023] By installing a second igniter inside the first explosive charge and creating a fourth through hole on the drive assembly body for the second wire to pass through, the second wire is connected to the second igniter. This allows the second wire to receive external power, and the current is transmitted through the fourth through hole to the second igniter inside the first explosive charge. Upon heating, the second igniter triggers the first explosive charge to detonate inside the container. Because the detonation point is inside the flammable medium container, the flammable medium can be pressurized, dispersed, and vaporized in a shorter time, forming a more complete deflagration reaction inside the container or its adjacent area. This process concentrates the energy release of the flammable medium, making it easier to coordinate the flame direction, duration, and integrity of the flame cloud with the structure of the safety chamber and protective plate. This ensures directional flame propulsion while reducing the risk of scattering, improving the consistency of repeated use and on-site safety of the gas explosion device in film and television shooting and stage performances.

[0024] In one possible embodiment, it further includes a first contact element and a second contact element, a third igniter is provided inside the first medicine pack, the third igniter is connected to the first contact element via a second wire, and the second contact element is connected to a power source.

[0025] The drive component body has a fifth through hole, through which the first contact member is connected to the moving member.

[0026] The first contact element moves to the second contact element under the action of the moving element and comes into contact with the second contact element, thereby connecting the second wire to the power supply to ignite the first explosive pack.

[0027] The embodiments of this application ignite the first explosive charge by setting a cooperative relationship between the first and second contact elements. This allows the ignition of the first explosive charge to be completed through mechanical displacement, with its timing highly matched to the completed puncture state. Therefore, it reduces the probability of accidental ignition and improves issues such as residual liquefied flammable media, flame dispersion, and poor repeatability. The first contact element achieves restricted guidance through a fifth through-hole, while the second contact element remains fixed, which also helps improve conductivity reliability and device reset consistency. This makes the embodiments of this application highly applicable to scenarios requiring precise flame timing, such as film shooting and stage performances.

[0028] Secondly, embodiments of this application provide a gas explosion system, including the aforementioned gas explosion device for film and television pyrotechnic effects, and a control system, wherein the gas explosion device and the control system are electrically connected.

[0029] The gas explosion system provided in this application embodiment, by setting up a control system electrically connected to the gas explosion device, facilitates linkage with the rhythm signals of film and television shooting or stage performance, so that the flame effect is accurately released at a predetermined time, thereby improving the consistency and repeatability of deflagration. Therefore, it is beneficial to improve the fullness, brightness and controllability of the flame ball, and can reduce the problems of false triggering, timing mismatch and residual combustion and safety boundary instability caused by external detonation.

[0030] Thirdly, this application provides an ignition method applied to the aforementioned gas explosion device used for film and television pyrotechnic effects, with the following steps.

[0031] Activate the drive unit to drive the moving part to puncture the flammable medium container.

[0032] Detonate the first explosive charge to ignite the flammable medium inside the flammable medium container.

[0033] The gas explosion device, gas explosion system, and ignition method provided in this application can improve the flame volume, brightness, and fullness of the combustible medium in the ignited combustible medium container, reduce the risk of liquid residue and trailing combustion, thereby improving the consistency, controllability, and on-site safety of the flame effect.

[0034] The gas explosion device, gas explosion system, and detonation method provided in this application for film and television pyrotechnic effects, by setting up a flammable medium container for storing flammable media, and using a driving component in the driving assembly to drive a moving component with a piercing part to move, so that the piercing part acts on the flammable medium container, and placing a first explosive charge inside the piercing part, and igniting the first explosive charge after the piercing part pierces into the flammable medium container, can achieve internal detonation of the flammable medium inside the flammable medium container, improve the deflagration completeness and energy release efficiency of the flammable medium, thereby improving the brightness, volume and effect stability of the flame, and reducing the use risks caused by the residue of flammable medium, continuous combustion and fragmentation. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0036] Figure 1 This application provides a schematic diagram of the structure of a gas explosion device without a protective plate embodiment;

[0037] Figure 2 A cross-sectional structural schematic diagram of the gas explosion device in the embodiment of the unprotected plate provided in this application;

[0038] Figure 3 A schematic diagram of the structure of the gas explosion device with a protective plate provided in this application;

[0039] Figure 4 A schematic diagram of the puncture site provided in this application;

[0040] Figure 5 A first cross-sectional view of the first working position of the gas explosion device provided in this application;

[0041] Figure 6 A first cross-sectional view of the second working position of the gas explosion device provided in this application;

[0042] Figure 7 A second cross-sectional view of the first working position of the gas explosion device provided in this application;

[0043] Figure 8 for Figure 7 A magnified structural diagram of part A in the middle;

[0044] Figure 9 A partial structural diagram of the first working position of the gas explosion device provided in the application;

[0045] Figure 10 A partial structural diagram of the first working position of the gas explosion device provided in the application;

[0046] Figure 11 A cross-sectional structural schematic diagram of the third embodiment of the ignition setting for the first propellant pack provided in the application;

[0047] Figure 12 for Figure 11 A magnified structural diagram of part B in the middle section;

[0048] Figure 13 A flowchart illustrating the detonation method provided in this application.

[0049] Figure label:

[0050] 100. Gas explosion device; 110. Drive assembly; 111. Drive assembly body; 1111. Third through hole; 1112. Fourth through hole; 112. Moving part; 113. Puncture part; 1131. Puncture part body; 1132. First through hole; 120. Safety chamber; 130. Combustible medium container; 140. Second explosive pack; 150. First explosive pack; 151. Second wire; 160. Protective plate; 161. Second through hole; 170. First contact element; 180. Second contact element.

[0051] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0052] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0053] Gas explosion special effects technology is mainly used in film and television shooting, stage performances, and other occasions that require instantaneous flame effects. It is especially suitable for close-up interactions between actors, fixed-point explosion demonstrations, and fire and explosion scenes with high requirements for flame shape and safety boundaries. In such applications, it is usually necessary to arrange flammable media, detonating components, and triggering mechanisms in a limited space so that the device can quickly release energy at a predetermined time to form a visual flame effect, while minimizing the impact on personnel, props, and surrounding equipment.

[0054] Based on the above scenarios, it can be seen that in the relevant technologies, when the flammable medium container 130 is ruptured or vented and then ignited through external detonation, there is a technical problem that the flammable medium cannot be fully vaporized and exploded, thus failing to achieve instantaneous explosion.

[0055] The gas explosion device 100, gas explosion system, and detonation method provided in this application for film and television pyrotechnic effects combine the pushing action with internal container detonation, so that the detonation effect can be applied more directly to the combustible medium inside the container, thereby improving the completeness of deflagration, improving the flame effect, and reducing the problems of residual combustion and unstable effects caused by external detonation.

[0056] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0057] like Figure 1 and Figure 3 A gas explosion device 100 is shown, including a combustible medium container 130, a drive assembly 110, a second explosive charge 140, and a first explosive charge 150.

[0058] Flammable medium container 130 is used to store flammable media.

[0059] The drive assembly 110 includes a drive assembly body 111 having a first cavity and a moving member 112, the moving member 112 being located within the first cavity and including a puncture portion 113.

[0060] The driving component, located in the first cavity and on one side of the moving component 112, is used to generate driving kinetic energy to push the moving component 112 to move.

[0061] The first explosive charge 150 is disposed in the puncture part 113 of the movable part 112 and is used to ignite after the puncture part 113 punctures into the flammable medium container 130, so as to ignite the flammable medium in the flammable medium container 130.

[0062] like Figure 2 and Figure 5 As shown, the flammable medium container 130 is used to store flammable media and serve as a carrier for deflagration media. The drive assembly 110 is used to drive the moving member 112 axially under the action of the drive member. The moving member 112 is provided with a puncture portion 113 for piercing the flammable medium container 130. The drive member is disposed within the first cavity of the drive assembly body 111 and located on one side of the moving member 112, so as to push the moving member 112 to move after ignition. A first explosive charge 150 is disposed within the puncture portion 113, so as to ignite after the puncture portion 113 pierces the flammable medium container 130, and trigger deflagration of the flammable medium inside the flammable medium container 130.

[0063] Specifically, the combustible medium container 130 is used to encapsulate and store the carrier component of the combustible medium to be ignited, providing a stable fuel source for the gas explosion process.

[0064] The combustible medium container 130 can be arranged within the safety chamber 120 of the gas explosion device 100, and its puncture-prone area corresponds to the movement axis of the drive assembly 110, so that the puncture part 113 enters the interior of the combustible medium container 130 in a predetermined direction. The combustible medium container 130 can be a standard gas cylinder, a cylindrical tank, a shell-type container, or a customized container with local weak points. Its material can be a thin-walled metal container, a composite metal container, an aluminum alloy container, or a high-strength polymer-reinforced container. Preferably, a small clearance fit is formed between the outer diameter of the combustible medium container 130 and the inner cavity of the safety chamber 120 to achieve stable positioning and repeatable arrangement.

[0065] The combustible medium can be combustible powder (such as carbon powder), liquid fuel (such as gasoline and diesel), or liquefied combustible gas (such as butane and propane), with liquefied combustible gas being preferred. Liquefied combustible gas has advantages such as relatively gentle explosive force, small shock wave, and short minimum safe distance, and is particularly suitable for close-up shooting of actors or explosion scenes with high safety requirements.

[0066] The drive assembly 110 is an actuator that converts the pressure energy generated by the combustion of the explosive charge into mechanical linear thrust, providing initial power for the puncture action and establishing the motion path for the subsequent implosion triggering of the combustible medium container 130.

[0067] The drive assembly 110 includes a drive assembly body 111 having a first cavity and a movable member 112 located within the first cavity. The drive assembly body 111 is connected to the safety chamber 120. The movable member 112 is axially movable along the first cavity. The movable member 112 includes a movable member 112 body and a puncture part 113. The movable member 112 body and the puncture part 113 form an integrated or detachable transmission relationship.

[0068] The drive assembly body 111 can be a cylindrical shell, a rectangular cavity shell, or a split closed cavity structure, and the material can be a steel cylinder, an aluminum alloy shell, or a pressure-resistant composite material.

[0069] The movable component 112 can be a piston, slider, or push rod structure, and the material can be a metal piston, an engineering plastic skeleton covering a metal head, or a wear-resistant composite component. Preferably, a sealed sliding fit is formed between the outer periphery of the movable component 112 and the inner wall of the first cavity. The outer diameter of the movable component 112 is slightly smaller than the inner diameter of the first cavity, which can improve the guiding accuracy, sealing performance, and smooth advancement of the movable component 112.

[0070] The moving part 112 is an intermediate force transmission component located in the first cavity and undergoing linear displacement under the drive of the driving part. It can receive and transmit the impact pressure released by the driving part, and drive the piercing part 113 to complete the piercing of the combustible medium container 130.

[0071] Specifically, such as Figure 2As shown, the movable part 112 is disposed in the first cavity, the driving part is located on one side of the movable part 112, and the other side of the movable part 112 is provided with a puncture part 113 to form a continuous propulsion path.

[0072] The moving part 112 can be in the form of a piston with a sealing ring groove, a slider with a guide plane, or a push rod with a bearing step, etc. The material can be a metal matrix, a metal and engineering plastic composite structure, or a wear-resistant material with surface hardening treatment. In terms of size and proportion, the length, mass and force-bearing area of ​​the moving part 112 can be matched and set according to the required stroke, puncture resistance and volume of the first cavity, so as to ensure that sufficient propulsion displacement can be obtained in the limited space of the first cavity under the drive of the driving part.

[0073] like Figure 2 and Figure 4 As shown, the puncture part 113 is located at the end of the moving part 112 away from the driving part, and is used to puncture the combustible medium container 130 and send the first explosive charge 150 into the combustible medium container 130. The puncture part 113 establishes an initiation channel inside the container at the mechanical structure level, so that the subsequent detonation of the first explosive charge 150 can directly act on the combustible medium.

[0074] The puncture section 113 is located on the side of the movable part 112 facing the flammable medium container 130, and can be integrally formed with the body of the movable part 112 or fixedly connected by means of screwing, snap-fitting, welding, etc. Figure 4 As shown, the puncture part 113 can adopt a conical tip, a needle-like tip, a conical-cylindrical composite tip, or a tip with serrated edges, and the material can be high-hardness steel, hard alloy, quenched stainless steel, or a metal material with a hard coating on the surface. The radius of curvature of the tip of the puncture part 113 should be set to be relatively small to improve the puncture efficiency of the combustible medium container 130. The length of the puncture part 113 can be set according to the wall thickness of the combustible medium container 130, the expected puncture depth, and the arrangement space of the first explosive pack 150.

[0075] The driving component is located in the first cavity and is used to generate driving kinetic energy and drive the moving component 112 to move. It provides the initial power source for the entire gas explosion device 100 and forms a thrust in the first cavity to push the puncture part 113 forward.

[0076] The driving component is located in the first cavity and on the side of the moving component 112 away from the first explosive charge 150, so that the power of the driving component can act on the moving component 112 along the axial direction of the first cavity, driving the moving component 112 to move axially and drive the piercing part 113 to pierce into the flammable medium container 130, so that the first explosive charge 150 is pushed into the flammable medium container 130 and ignited, detonating the flammable medium in the flammable medium container 130, and the explosion is instantaneous and complete.

[0077] The driving component is a driving member that propels the moving component 112. It can be a gas-driven, electromagnetic-driven, spring-driven, hydraulic-driven, or other driving component. It can also be a cylindrical propellant pack, a granular propellant pack, a sheet-like propellant pack, or a capsule-type propellant body. The propellant can be an ignition propellant, a propellant, or a composite pyrotechnic agent. In embodiments where the driving component is a propellant pack, an outer coating material can be used to improve the stability of filling and ignition.

[0078] In the embodiment where the driving component is a medicine pack, the amount and length of the medicine pack are matched with the volume of the first cavity, the mass of the moving component 112, and the target stroke. A certain expansion space can be reserved in the first cavity to facilitate the rapid establishment of driving pressure by the gas without causing unnecessary jamming.

[0079] The first explosive charge 150 is located inside the puncture section 113. After entering the combustible medium container 130 through the puncture section 113, it is ignited as the main detonating explosive charge. After entering the container, it directly triggers deflagration on the combustible medium, causing the combustible medium to rapidly vaporize inside the container and form a directional flame effect.

[0080] The first explosive charge 150 is disposed in the second cavity of the puncture section 113 and moves synchronously with the puncture section 113. After the puncture section 113 pierces the container wall of the flammable medium container 130, the first explosive charge 150 is in a predetermined position inside the flammable medium container 130 so as to complete ignition under controlled timing.

[0081] The first explosive pack 150 can be a micro-particle, capsule pack, strip pack, or encapsulation core. The explosive can be a high-energy pyrotechnic powder, an ignition core, a composite explosive agent, or a heat-resistant encapsulation shell, etc.

[0082] The outer dimensions of the first explosive charge 150 are smaller than the inner diameter of the second cavity to ensure reliable assembly and enable it to release energy rapidly after ignition. Its length and charge amount can be adapted according to the target flame shape and the volume of the combustible medium container 130.

[0083] The gas explosion device 100 provided in this application combines the mechanical propulsion of the driving component with the internal detonation of the first explosive charge 150. This allows the piercing part 113 to first directionally penetrate the combustible medium container 130, and then directly apply the detonation energy to the interior of the combustible medium container 130. This establishes a more direct combustion triggering path within the combustible medium container 130, causing the liquefied gas inside the combustible medium container 130 to be instantly vaporized and ignited, resulting in an instantaneous and complete explosion.

[0084] When the gas explosion device 100 needs to be activated, the driving component is ignited in the first cavity and releases high-pressure gas. This high-pressure gas pushes the moving component 112 to move rapidly along the axial direction of the first cavity. The moving component 112 then moves the piercing part 113 toward the combustible medium container 130 and pierces the container wall of the combustible medium container 130, allowing the first explosive charge 150 to enter the interior of the combustible medium container 130. The first explosive charge 150 is ignited and releases energy inside the container, causing the combustible medium inside the combustible medium container 130 to rapidly vaporize and form an instantaneous high-temperature and high-pressure deflagration in the confined space. The combustion gas is directionally ejected from the container opening and the locally ruptured area, thereby forming a concentrated, full, and consistent flame effect.

[0085] The deflagration effect of the gas explosion device 100 provided in this application embodiment mainly occurs inside the combustible medium container 130, which can reduce the trailing combustion phenomenon caused by liquid residue and uneven spraying, and help reduce the risk of fuel adhesion to the outer surface of the container or surrounding props. The directional advancement of the puncture part 113, in conjunction with the internal triggering of the first explosive charge 150, makes the flame generation position, spray direction and timing more controllable, and therefore more suitable for gas explosion scenarios that require stable flame patterns, such as film and television shooting, stage performances and others.

[0086] Furthermore, the movable part 112 is sealed and slidably disposed within the first cavity.

[0087] The movable component 112 and the first cavity form a mating relationship that allows for relative sliding while maintaining the cavity's sealing. This allows the movable component 112 to move axially along the first cavity under the drive of the drive component, minimizing leakage of working gas within the first cavity. This improves the driving efficiency of the drive component, enhances the driving force, and reduces pressure loss, thereby ensuring that the puncture section 113 has sufficient advancing speed and puncture capability.

[0088] The moving member 112 is a pushing member that is located in the first cavity and moves linearly under pressure under the action of the driving member. Its surface and the inner wall of the first cavity can form a follow-up fit through a sealing structure such as an elastic seal, thereby maintaining the pressure concentration in the first cavity during the movement.

[0089] When the driving component generates kinetic energy, the kinetic energy acts on the side of the moving component 112 away from the puncture part 113, causing the moving component 112 to slide rapidly along the axial direction in the first cavity. The sealing structure can prevent most of the gas from escaping between the outer periphery of the moving component 112 and the inner wall of the cavity, thereby effectively converting the pressure into a propulsive force on the moving component 112.

[0090] By sealing and sliding the movable member 112 within the first cavity, the kinetic energy released by the driving member can more effectively propel the movable member 112 forward. The piercing part 113 carried by the movable member 112 can obtain sufficient kinetic energy to reliably pierce the flammable medium container 130 within a shorter stroke, thereby improving the piercing success rate of the piercing part 113 and the timeliness of the internal detonation of the flammable medium container 130, while reducing pressure loss and energy waste.

[0091] Furthermore, the puncture portion 113 includes a puncture portion body 1131, which has a second cavity for accommodating the first drug pack 150, and the puncture portion body 1131 has a sharp end.

[0092] The piercing part body 1131 is the main structural component at the front end of the movable part 112, used to pierce and accommodate the detonating charge. It has both piercing and bearing functions for the first charge 150. After the movable part 112 is pushed by the driving component, it pierces the container wall of the combustible medium container 130 and brings the first charge 150 into the interior of the combustible medium container 130 to achieve internal ignition and deflagration. The piercing part body 1131 can be located at one end of the movable part 112 near the combustible medium container 130 and coaxially connected to the movable part 112 to ensure stable piercing direction during linear advancement.

[0093] like Figure 4 As shown, the puncture head body 1131 has a second cavity inside, which is used to accommodate the first explosive charge 150. When necessary, it can also accommodate an ignition fuse, a delay element, or a packaging component for fixing the first explosive charge 150. This ensures that the first explosive charge 150 remains in a stable position during movement, assembly, and initial advancement.

[0094] The end of the puncture head 1131 near the end of the combustible medium container 130 is a sharp end. The sharp end is used to reduce the contact area and puncture resistance when it comes into contact with the container wall of the combustible medium container 130, so as to achieve rapid puncture under a small driving force.

[0095] Specifically, the puncture head 1131 can adopt a hollow cone shape, a hollow needle tube body, a stepped cone that is thinner at the front and thicker at the back, or a tubular body with a constricted front end. Among them, the hollow cone shape is conducive to forming a smooth insertion transition while maintaining high axial stiffness; the hollow needle tube body is suitable for reducing puncture resistance and facilitating the setting of a longer second cavity; the stepped cone that is thinner at the front and thicker at the back facilitates the formation of a sharp puncture head at the front end and provides a large space for drug pack installation at the rear end; and the tubular body with a constricted front end can achieve the internal placement of the first drug pack 150 without significantly increasing the overall volume.

[0096] By providing a second cavity and a sharp end to the puncture head body 1131, the sharp end of the puncture head body 1131 can reduce the puncture resistance, and the second cavity can provide a stable containment space for the first explosive charge 150. This can ensure puncture reliability, improve the accuracy of the first explosive charge 150's detonation, make the flame release position more controllable and the deflagration more complete, and help reduce the residue of combustible media and trailing combustion, thereby improving the repeatability and safety adaptability of the gas explosion device 100 in film and television shooting and stage performances.

[0097] Furthermore, the puncture section body 1131 is provided with a first through hole 1132.

[0098] like Figure 4 As shown, the first through hole 1132 is a through channel provided on the wall of the puncture part body 1131, which is used to connect the internal second cavity of the puncture part body 1131 with the external environment. After the first explosive pack 150 is ignited, it provides a release path for gas, heat and pressure, and when the puncture part 113 is inserted into the combustible medium container 130, it can help form a more stable ignition transmission path.

[0099] The first through hole 1132 can be set on the side wall of the puncture part body 1131, in the area near the sharp end, or in the circumferential area around the axis of the second cavity. It can be distributed as a single opening, multiple array holes, or a symmetrically arranged group of holes along the axial or circumferential direction as needed, so as to improve the transmission efficiency of the combustion and explosion energy of the first explosive charge 150 without significantly weakening the overall strength of the puncture part 113.

[0100] The first through hole 1132 can be a round hole, an elliptical hole, a long slot hole, an oblique hole, or a hole array composed of multiple micro-holes.

[0101] The gas explosion device 100 provided in this application embodiment, by distributing first through holes 1132 on the puncture part body 1131, provides gas exchange and pressure balance conditions for the internal ignition of the combustible medium container 130. The energy after the first explosive charge 150 is ignited is no longer limited to the local enclosed space, but can more fully act on the combustible medium inside the container and promote its vaporization and combustion, thereby improving the integrity of the deflagration and the concentration of the flame, and reducing liquid residue and trailing combustion phenomena. The optimization of the pressure release path by the first through holes 1132 also allows the puncture, ignition, and explosion processes to be completed stably according to a predetermined sequence. While ensuring the strength of the puncture part 113, it improves the ignition efficiency and energy transfer effect of the first explosive charge 150, thereby enhancing the consistency of the flame performance and the safety of use of the gas explosion device 100.

[0102] Furthermore, the gas explosion device 100 also includes a safety chamber 120 for accommodating the flammable medium container 130 and is open on one side.

[0103] The safety chamber 120 is connected to the drive assembly body 111 so that the moving part 112 moves to the safety chamber 120 under the drive of the drive assembly and the piercing part 113 pierces into the flammable medium container 130.

[0104] Specifically, the safety chamber 120 is an external protective cavity used to position, isolate, and restrain the flammable medium container 130 from deflagration. It forms a containment space that covers the flammable medium container 130 and reserves a deflagration outlet in a predetermined direction. While meeting the filling requirements of the flammable medium container 130 and the puncture requirements of the moving part 112, it restrains the direction of fragments and flames generated after the flammable medium container 130 ruptures.

[0105] like Figure 2 and Figure 5 As shown, the safety chamber 120 can be disposed on the outer periphery of the flammable medium container 130 and is axially connected to the drive assembly body 111, so that the moving part 112 can enter the safety chamber 120 along a predetermined path under the drive of the drive part and puncture the container.

[0106] The open structure on one side of the safety compartment 120 facilitates the insertion or removal of the flammable medium container 130 from the opening direction. The safety compartment 120 is connected to the drive assembly body 111, which facilitates accurate alignment of the outlet end of the drive assembly body 111 with the puncture point of the container during assembly.

[0107] The safety compartment 120 can be box-shaped, cylindrical, semi-enclosed shell, or protective compartment with observation window. The material can be steel plate, aluminum alloy plate, high temperature resistant composite plate, flame retardant glass fiber reinforced plate, or multi-layer sandwich protective material. The inner wall can also be equipped with heat-resistant lining, energy-absorbing layer, or replaceable protective lining as needed to enhance the ability to withstand high temperature and fragment impact.

[0108] The inner dimensions of the safety chamber 120 are usually larger than the outer dimensions of the combustible medium container 130, and a safety clearance sufficient to accommodate the assembly tolerances and deflagration expansion of the combustible medium container 130 is reserved. Its opening size is matched with the detachable protective plate 160, the chamber door or the limiting edge to ensure that the combustible medium container 130 is placed stably and to limit the spread of the flame ball in non-target directions.

[0109] The connection between the safety compartment 120 and the drive component body 111 can be any one or a combination of open docking, guide channel connection, mounting flange connection, screw connection, plug connection or snap-fit ​​connection, so as to limit the movement trajectory of the moving part 112 to the puncture direction corresponding to the combustible medium container 130.

[0110] The embodiments of this application, by opening one side of the safety chamber 120 and connecting it to the drive component body 111, allow the safety chamber 120 to provide positioning support for the combustible medium container 130 and also form a constraint space outside the combustible medium container 130. This can limit the dispersion of fragmented parts to non-target areas during deflagration, causing flames and jet streams to be released more concentratedly along the predetermined opening direction. This improves deflagration completeness and flame formation stability while reducing the impact risk to personnel, equipment, and surrounding structures. It can also improve the transmission efficiency of detonation within the combustible medium container 130, facilitating a more concentrated, consistent, and controllable ignition point effect.

[0111] Furthermore, the gas explosion device 100 also includes a protective plate 160, which covers the open side of the safety chamber 120. The protective plate 160 has a second through hole 161 to allow the explosion flame of the flammable medium to be ejected in a directional manner.

[0112] It should be noted that the gas explosion device 100 may or may not have a protective plate 160. Having a protective plate 160 is one embodiment of the gas explosion device 100, such as... Figure 3 As shown. In this embodiment, the protective plate 160 is a plate-shaped protective member used to cover the opening of the safety compartment 120 and guide and constrain the deflagration flame. After the combustible medium container 130 is detonated, it limits the direction of the flame jet and shields the debris from scattering, thereby reducing the disturbance of the deflagration to the surrounding environment and improving the controllability of the flame effect.

[0113] The protective plate 160 is located on the open side of the safety compartment 120 and can be matched with the opening edge of the safety compartment 120. It is usually installed on the safety compartment 120 by screw connection, snap connection, hinge connection or detachable locking structure, so that it can be opened when filling the flammable medium container 130 and closed to cover during operation, thereby improving assembly convenience and operational reliability.

[0114] like Figure 3 As shown, the second through hole 161 is provided on the protective plate 160, corresponding to the deflagration area of ​​the combustible medium container 130 in the safety chamber 120, so that when the explosion occurs, the high temperature flame and the impact airflow are directionally ejected through the predetermined channel to form a directional flame effect.

[0115] The protective plate 160 can be made into a flat plate, an arc-shaped plate, or a composite plate structure with a flow guide. The second through hole 161 can be a round hole, a fan-shaped hole, a long strip slit, or a trumpet-shaped opening, so as to adjust the spray beam width and spray angle according to the required flame pattern. The material of the protective plate 160 can be steel plate, aluminum alloy plate, heat-resistant ceramic plate, composite fireproof plate, or metal mesh sandwich plate to ensure that it still has sufficient structural strength and heat resistance stability under high temperature impact.

[0116] The periphery of the second through hole 161 can be reinforced with a rolled edge or a heat-resistant liner to prevent deformation of the opening caused by high-temperature erosion. The opening area of ​​the second through hole 161 is usually smaller than the total area of ​​the protective plate 160. The specific hole diameter, number of holes, or opening ratio can be selected according to the required flame jet range, container specifications, and on-site safety distance, so that the flame remains focused while satisfying the visual effect.

[0117] The embodiments provided in this application utilize a protective plate 160 with a second through hole 161. The protective plate 160 covers the open side of the safety chamber 120. The high-temperature flame and impact gas generated by the deflagration are ejected along the path defined by the second through hole 161. Under the guidance and constraint of the protective plate 160, the flame shape is more concentrated and the ejection direction is more defined, which is conducive to forming a predictable flame outline and reducing the probability of debris escape. Through the cooperation of the protective plate 160 and the second through hole 161, this application enables the flame generated after the container is detonated to be released in a designated direction, which not only improves the directionality and repeatability of the flame effect, but also enhances the safety and controllability during on-site use. It is especially suitable for gas explosion special effects scenes with high requirements for flame direction, camera performance, and surrounding protection.

[0118] Furthermore, the driving component is a second explosive charge 140, which contains a first igniter. The driving component body 111 has a third through hole 1111, and a first wire is connected to the first igniter through the third through hole 1111. The first wire is powered to ignite the second explosive charge 140.

[0119] It should be noted that the driving component is set as the second drug pack 140. The second drug pack 140 has a fast response speed, a large driving force and does not require external energy, which makes the structure of the driving component simple and compact, with high safety in the ready state, strong environmental adaptability and reliable timing control.

[0120] Specifically, the first igniter is an electric ignition element that converts external electrical energy into heat energy and ignites the second charge 140. After receiving the current transmitted by the first wire, it heats up rapidly, so that the second charge 140 can be reliably ignited at a predetermined time, thereby driving the moving part 112 located in the first cavity to produce axial movement.

[0121] The first igniter can be located inside the second propellant charge 140, within the covering layer of the second propellant charge 140, or adjacent to the ignition end of the second propellant charge 140, so that after power is applied, the heat can be applied as directly as possible to the ignition area of ​​the propellant charge, reducing energy loss and improving the consistency of the ignition response.

[0122] like Figure 5As shown, the third through hole 1111 is opened on the wall of the drive assembly body 111 to provide a passage for the first wire, so that the first wire can be introduced into the first cavity from the power supply terminal outside the drive assembly 110 and electrically connected to the first igniter.

[0123] The first igniter can take the form of a resistance wire igniter, a bridge wire igniter, an ignition cap, a miniature glow plug, or a thin film ignition plate. The resistance wire igniter can be made of nickel-chromium alloy wire, tungsten wire, or platinum wire. The bridge wire igniter can form a thin bridge-shaped heating section on an insulating substrate. The ignition cap can be encapsulated with a metal shell and a sensitive heating agent. The miniature glow plug can integrate the heating core, insulating sleeve, and conductive terminal. The thin film ignition plate can achieve ignition through the resistance heating of a conductive ceramic film or metal film.

[0124] The first conductor can be made of high-temperature resistant wire, shielded wire, double-core wire, or flexible conductive wire, and can be covered with a heat-resistant insulating layer to adapt to the internal thermal environment of the device and the assembly bending requirements. The length, cross-sectional area, and resistance value of the heating section of the first igniter are usually matched with the charge, agent sensitivity, and heat flux density required for ignition of the second charge 140.

[0125] The diameter of the third through hole 1111 should be such that it can stably accommodate the passage of the first conductor and facilitate the installation of a sealant. Usually, a small amount of filling space is reserved in the circumferential direction of the outer diameter of the first conductor, on the premise of ensuring smooth wire threading, so as to reduce the impact of dust, gas and impact pressure on the external circuit through potting compound, sealing ring or heat-resistant sealing material.

[0126] When the gas explosion device 100 is working, the external power supply supplies power to the first igniter through the first wire. The first igniter heats up quickly and ignites the second explosive charge 140. The first wire itself does not participate in mechanical movement, but only passes through the third through hole 1111 in the wiring state and maintains an electrical connection with the first igniter.

[0127] The first igniter can also be replaced by a pyroelectric ignition tube, a miniature electric heating film, a laser ignition coupling head, or a wireless induction ignition module. The third through hole 1111 can also be replaced by a wire trough, a sealed wiring port, or a conduit, depending on the assembly requirements.

[0128] The first igniter can ignite the second propellant charge 140 and, in conjunction with the combustion characteristics of the second propellant charge 140, achieve a shorter ignition delay and higher repeatability, thereby enabling the second propellant charge 140 to ignite rapidly within a defined time window after receiving an electrical signal.

[0129] When the gas explosion device 100 needs to be activated, the external control circuit applies a preset voltage and current to the first wire. The electrical energy is transmitted to the first igniter through the first wire and converted into heat energy. The first igniter heats up rapidly and ignites the second explosive charge 140. After the second explosive charge 140 burns, it forms a pushing pressure in the first cavity, which in turn drives the moving part 112 to move axially along the first cavity and pushes the puncture part 113 toward the combustible medium container 130.

[0130] The embodiments provided in this application, by setting a first igniter in the second explosive charge 140 and opening a third through hole 1111 in the drive component body 111 for the first wire to pass through, realize the connection between the first wire and the first igniter, making the ignition path direct and the energy transfer clear, the ignition time of the second explosive charge 140 easier to control precisely, thereby making the start-up response of the moving part 112 more stable, and also helping to improve the consistency of subsequent puncture actions and the overall reliability of the device.

[0131] Furthermore, the first explosive charge 150 is provided with a second igniter, and the drive assembly body 111 is provided with a fourth through hole 1112. The second wire 151 is connected to the second igniter through the fourth through hole 1112. The second wire 151 is used to receive power to ignite the first explosive charge 150 after the puncture part 113 punctures into the combustible medium container 130.

[0132] It should be noted that a fourth through hole 1112 is provided in the drive component body 111, and the second wire 151 is connected to the second igniter through the fourth through hole 1112, which is a first embodiment for setting up the igniter for the first charge 150.

[0133] In this embodiment, the second igniter is an ignition element disposed inside the first explosive charge 150 and ignited by electricity after the first explosive charge 150 enters the combustible medium container 130. It is an internal ignition element used to trigger the first explosive charge 150 to detonate inside the container, which can ensure that the first explosive charge 150 is activated in time after the puncture action is completed, thereby achieving implosion ignition.

[0134] The way the second igniter is set inside the first propellant pack 150 can be the same as the way the first igniter is set inside the second propellant pack 140. The way the fourth through hole 1112 is set on the drive assembly body 111 can be the same as the way the third through hole 1111 is set on the drive assembly body 111, and will not be described again here.

[0135] The second conductor 151 remains stationary during operation or undergoes limited bending displacement with the moving part 112, and forms a reliable electrical connection with the second igniter through the fourth through hole 1112 to ensure that it can receive power and ignite the first explosive charge 150 in a timely manner after the puncture is completed, so as to avoid accidental detonation when the puncture is not completed, which would affect the structural safety.

[0136] By installing a second igniter inside the first explosive charge 150 and opening a fourth through hole 1112 on the drive assembly body 111 for the second wire 151 to pass through, the second wire 151 is connected to the second igniter. This allows the second wire 151 to receive external power, and the current is transmitted through the fourth through hole 1112 to the second igniter located inside the first explosive charge 150. Upon heating, the second igniter triggers the first explosive charge 150 to detonate inside the container. Because the detonation point is located inside the combustible medium container 130, the combustible medium can be pressurized, dispersed, and vaporized in a shorter time, forming a more complete deflagration reaction inside the container or its adjacent area. This process makes the energy release of the combustible medium more concentrated, and makes the flame ejection direction, duration, and integrity of the flame cluster more easily compatible with the structure of the safety chamber 120 and the protective plate 160. This ensures directional flame ejection while reducing the risk of scattering, improving the reusability and on-site safety of the gas explosion device 100 in film and television shooting and stage performances.

[0137] Furthermore, it also includes a first contact element 170 and a second contact element 180. The first medicine pack 150 is provided with a third igniter, which is connected to the first contact element 170 through a second wire 151. The second contact element 180 is connected to a power source. The drive assembly body 111 has a fifth through hole, through which the first contact element 170 is connected to the moving part 112. The first contact element 170 moves to the second contact element 180 under the drive of the moving part 112 and touches the second contact element 180 to realize the second wire is electrically connected to the power source, so as to ignite the first medicine pack 150.

[0138] The gas explosion device 100 is equipped with a first contact member 170 and a second contact member 180. The contact between the first contact member 170 and the second contact member 180 is used to connect the second wire 151 to the power supply, thereby igniting the first explosive charge 150. This is a second embodiment of setting up the ignition of the first explosive charge 150.

[0139] In this embodiment, the first contact 170 is a trigger contact disposed on the movable member 112. After the movable member 112 completes the piercing action, the first contact 170 converts the mechanical displacement into electrical connection. The second contact 180 is a fixed contact electrically connected to the power supply. After being touched by the first contact 170, the second contact 180 outputs ignition current to the third igniter.

[0140] The third igniter is an electrically triggered ignition element located inside the first explosive charge 150. The third igniter receives electrical energy generated by contact and produces sufficient thermal energy or pyrotechnic ignition energy to ignite the first explosive charge 150. The first contact element 170 and the second contact element 180 cooperate to form an electrically activated structure triggered by movement displacement, so that the first explosive charge 150 can be accurately ignited at a predetermined time after the moving element 112 completes the puncture, thereby matching the timing with the aforementioned puncture action and preventing the first explosive charge 150 from detonating too early or too late.

[0141] Specifically, such as Figures 7-9 As shown, the first contact member 170 can be fixed on the body of the moving member 112, or it can be integrally formed with the moving member 112 and pass through the fifth through hole on the driving component body 111 to the outside of the driving component body 111.

[0142] The fifth through hole is opened on the wall of the drive assembly body 111 to provide guidance and external extension channel for the first contact 170, while limiting the axial swing offset of the first contact 170 to ensure that it can stably reach the position of the second contact 180 during movement.

[0143] The second contact 180 can be fixed to the outer wall of the drive assembly body 111, the side wall of the safety compartment 120, or an adjacent power input terminal, and remain relatively stationary so as to form reliable contact when the first contact 170 moves into position.

[0144] like Figure 8 As shown, the second wire 151 electrically connects the first contact 170 to the third igniter inside the first explosive charge 150. One end of the second wire 151 can be soldered, crimped, or plugged into the first contact 170, and the other end extends into the first explosive charge 150 and is connected to the lead end of the third igniter.

[0145] like Figure 9 and Figure 10 As shown, the fifth through hole can be a round hole, an oblong hole, or a guide hole with an insulating bushing. Its diameter is usually slightly larger than the outer diameter of the first contact member 170 to balance smooth passage and guiding accuracy. The protruding length of the first contact member 170 should be adapted to the effective stroke of the moving member 112 so that it can accurately contact the second contact member 180 after the moving member 112 is fully in place, while maintaining a sufficient gap in the inactive state to avoid accidental triggering.

[0146] The first contact element 170 can be any one or more of the following forms: metal contact pin, conductive sheet, contact post, elastic contact sheet or ball-type conductive end. The second contact element 180 can be correspondingly set as a spring, conductive post, metal target sheet or ring contact ring, etc., to adapt to different installation spaces and contact methods.

[0147] The third igniter can be a resistance wire igniter, a miniature igniter cap, a thermal trigger core, or a thin-film igniter, which can be selected according to the charge characteristics and ignition requirements of the first charge 150.

[0148] The outer diameter, thickness, or contact area of ​​the first contact element 170 should meet the conduction current requirements. It can usually be designed to be in the range of millimeters to centimeters depending on the power of the device. Its effective extension length should match the stroke of the moving element 112, the thickness of the fifth through hole, and the installation position of the second contact element 180. The contact area of ​​the second contact element 180 should preferably be slightly larger than the end contact area of ​​the first contact element 170 to improve contact reliability and reduce contact resistance.

[0149] It should be noted that, as Figure 8 As shown, the first contact member 170 has a wire channel through which the second wire 151 passes, and the wire channel extends into the moving member 112 to the puncture part 113, so that the second wire 151 can be connected from the end of the first contact member 170 located outside the driving assembly body 111 to the second cavity of the puncture part 113, thereby realizing the connection between the second wire 151 and the first medicine pack 150.

[0150] When the gas explosion device 100 is running, the initial state of the moving part 112 is as follows: Figure 5 , Figure 7 and Figure 9 As shown, after the second explosive charge 140 is ignited, it pushes the moving part 112 to move rapidly along the direction of the first cavity and the safety chamber 120. Driven by the piercing part 113, the moving part 112 completes the piercing action on the flammable medium container 130. Simultaneously, the first contact member 170 located on the moving part 112 passes through the fifth through hole and moves towards the second contact member 180. As the moving part 112 continues to advance, the first contact member 170 gradually approaches the second contact member 180 and forms a contact electrical connection with the second contact member 180 at the end of a predetermined stroke. The state of the moving part 112 is as follows: Figure 6 and Figure 10 As shown, at this time, the power supply supplies power to the third igniter through the second contact 180, the first contact 170, and the second wire 151. After receiving power, the third igniter rapidly heats up or generates triggering energy, thereby igniting the first explosive charge 150. After the first explosive charge 150 is detonated in a controlled manner inside the puncture section 113, it can further act on the inside of the punctured combustible medium container 130, allowing the combustible medium to achieve more complete energy release and more concentrated discharge within the container, thereby forming a stable, full flame effect with good directionality.

[0151] The gas explosion device 100 is equipped with a first contact element 170 and a second contact element 180. The second contact element 180 is a switch. The second wire 151 is electrically connected to the second contact element 180. The first contact element 170 is used as a mechanical pressing structure. When the second contact element 180 is pressed, the second wire 151 is connected to the power supply, thereby igniting the first explosive pack 150. This is a third embodiment for setting up the ignition of the first explosive pack 150.

[0152] In this embodiment, such as Figure 11 and Figure 12 As shown, one end of the second wire 151 is connected to the third igniter through the wire channel in the first contact member 170, and the other end is electrically connected to the second contact member 180.

[0153] When the first contact member 170 moves with the moving member 112 to the second contact member 180, the piercing part 113 has pierced into the flammable medium container 130. The first explosive charge 150 is located inside the flammable medium container 130. The first contact member 170 touches and presses the second contact member 180 to realize the electrical conduction of the power supply, the second wire 151 and the third igniter, thereby realizing the ignition of the first explosive charge 150, and thus igniting the flammable medium inside the flammable medium container 130.

[0154] The gas explosion device 100 provided in this embodiment ignites the first explosive pack 150 by mechanically pressing the first contact member 170 and the second contact member 180, which allows for precise timing control, high safety, and a compact structure.

[0155] The embodiments of this application ignite the first explosive charge 150 by setting the cooperative relationship between the first contact member 170 and the second contact member 180. This allows the ignition of the first explosive charge 150 to be completed through mechanical displacement, with its timing highly matched to the completed puncture state, thus reducing the probability of accidental ignition. The first contact member 170 achieves restricted guidance through the fifth through-hole, while the second contact member 180 remains fixed, which also helps improve conductivity reliability and device reset consistency. This makes the embodiments of this application highly applicable to scenarios requiring precise flame timing, such as film shooting and stage performances.

[0156] An embodiment of this application also provides a gas explosion system, including the gas explosion device 100 for film and television pyrotechnic effects provided above, and a control system, wherein the gas explosion device 100 is electrically connected to the control system.

[0157] Specifically, after the control system is electrically connected to the gas explosion device 100, it can uniformly control the triggering sequence, action interval and execution status of the second explosive charge 140 and the first explosive charge 150, so that the drive component 110 first pushes the puncture part 113 into the combustible medium container 130, and then the first explosive charge 150 detonates the combustible medium inside the container, thereby ensuring that the detonation process proceeds stably according to the predetermined logic.

[0158] The gas explosion system provided in this application embodiment is electrically connected to the gas explosion device 100 via a control system, facilitating synchronization with rhythm signals in film and television shooting or stage performances. This ensures that the flame effect is accurately released at a predetermined time, thereby improving the consistency and repeatability of the deflagration. Therefore, it not only enhances the fullness, brightness, and controllability of the flame cluster but also reduces problems such as false triggering, timing mismatch, and residual combustion and safety boundary instability caused by external detonation.

[0159] An embodiment of this application also provides an detonation method applied to the gas explosion device 100 for film and television pyrotechnic effects provided above, the steps of which are as follows.

[0160] like Figure 13 As shown, S100: Start the drive unit to drive the moving unit 112 to drive the piercing part 113 to pierce into the combustible medium container 130.

[0161] S200: Detonate the first explosive charge 150 to detonate the flammable medium inside the flammable medium container 130.

[0162] Specifically, in the embodiment where the driving force is the second explosive charge 140, after the second explosive charge 140 is detonated, it releases the driving force, pushing the moving part 112 to move in a predetermined direction, and the piercing part 113 completes the piercing of the combustible medium container 130, thereby allowing the first explosive charge 150 to enter the container through the piercing part 113. Subsequently, the first explosive charge 150 is detonated, so that the detonation effect is directly applied to the combustible medium inside the container, allowing the combustible medium to be ignited more quickly inside the container and participate in deflagration, thereby improving the completeness of gasification and combustion.

[0163] Therefore, the gas explosion device 100, gas explosion system and ignition method provided in this application can improve the flame volume, brightness and fullness of the combustible medium in the combustible medium container 130, reduce the risk of liquid residue and trailing combustion, thereby improving the consistency, controllability and on-site safety of the flame effect.

[0164] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A gas explosion device for use in film and television pyrotechnic effects, characterized in that, include: A flammable medium container (130) for storing flammable media; The drive assembly (110) includes a drive assembly (110) body having a first cavity and a moving part (112) located in the first cavity, the moving part (112) including a puncture part (113). A driving component, disposed within the first cavity and located on one side of the moving component (112), is used to generate driving kinetic energy to push the moving component (112) to move; The first explosive charge (150) is disposed in the puncture part (113) of the movable part (112) and is used to ignite after the puncture part (113) punctures the flammable medium container (130) to ignite the flammable medium inside the flammable medium container (130).

2. The gas explosion device according to claim 1, characterized in that, The movable element (112) is sealed and slidably disposed within the first cavity.

3. The gas explosion device according to claim 1, characterized in that, The puncture part (113) includes a puncture part (113) body, the puncture part (113) body having a second cavity for accommodating the first medicine pack (150), and the puncture part (113) body having a sharp end.

4. The gas explosion device according to claim 3, characterized in that, The puncture part (113) has a first through hole (1132) distributed on its body.

5. The gas explosion device according to claim 1, characterized in that, Also includes: A safety compartment (120) is provided for accommodating the flammable medium container (130) and is open on one side; The safety chamber (120) is connected to the main body of the drive assembly (110) so that the moving part (112) moves to the safety chamber (120) under the drive of the drive assembly and the piercing part (113) pierces into the flammable medium container (130).

6. The gas explosion device according to claim 5, characterized in that, It also includes a protective plate (160) which covers the open side of the safety chamber (120) and has a second through hole (161) to allow the explosion flame of the flammable medium to be ejected in a directional manner.

7. The gas explosion device according to claim 1, characterized in that, The driving component is a second medicine pack (140), and a first igniter is provided inside the second medicine pack (140). The driving component (110) body has a third through hole (1111), and a first wire is connected to the first igniter through the third through hole (1111). The first wire is powered to ignite the second explosive charge (140).

8. The gas explosion device according to claim 7, characterized in that, The first medicine pack (150) is provided with a second igniter, and the main body of the drive assembly (110) is provided with a fourth through hole (1112). The second wire (151) is connected to the second igniter through the fourth through hole (1112). The second wire (151) is used to receive power to ignite the first drug pack (150) after the puncture part (113) is punctured into the flammable medium container (130).

9. The gas explosion device according to claim 1, characterized in that, It also includes a first contact (170) and a second contact (180). The first medicine pack (150) is provided with a third igniter. The third igniter is connected to the first contact (170) through a second wire (151). The second contact (180) is connected to a power source. The drive assembly (110) body has a fifth through hole, and the first contact member (170) is connected to the moving member (112) through the fifth through hole; The first contact element (170) moves to the second contact element (180) under the action of the moving element (112) and touches the second contact element (180) to realize the second wire (151) being electrically connected to the power source so as to ignite the first medicine pack (150).

10. A gas explosion system, characterized in that, Including the gas explosion device for film and television pyrotechnic effects as described in any one of claims 1-9, and The control system is electrically connected to the gas explosion device.

11. A detonation method, characterized in that, The gas explosion device for film and television pyrotechnic effects, as described in any one of claims 1-9, comprises the following steps: The drive unit is activated to drive the moving part (112) to drive the piercing part (113) to pierce into the flammable medium container (130). The first explosive charge (150) is detonated to detonate the flammable medium inside the flammable medium container (130).

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