Firework launching tube structure

Abstract

The utility model relates to a firework launching tube structure, including ignition module, including module base body, the charge cavity that forms by the module base body top recess inward, and set up in the fire channel of module base body inside, the bottom of charge cavity is equipped with the air permeation structure to make charge cavity with fire channel intercommunication, the launching tube body, the sleeve that sets up in ignition module outside, its inside forms and is used for accommodating firework bullet containing chamber, the detachable installation of lead wire passes through lead wire fixing member with ignition module, can according to the setting off arrangement, quick installation, adjustment or replacement lead wire, improve the layout flexibility, has promoted the layout efficiency and accuracy when the multiple tube combination setting off, in addition, effectively prevented the lead wire displacement or drop due to vibration, pulling in the transportation and installation process, fundamentally guaranteed the reliability and punctuality of ignition, greatly improved the security and accuracy of entire setting off system.

Description

Technical Field

[0001] This utility model belongs to the field of fireworks launching tubes, and specifically relates to a fireworks launching tube structure. Background Technology

[0002] Fireworks, specifically aerial displays, are typically propelled to a predetermined height using a launch tube. Traditional fireworks launch tubes have a relatively simple structure, usually consisting of a tube closed at one end, with the ignition powder and fuse located near the closed end. This traditional structure has several inherent drawbacks: Poor ignition reliability and the fact that the fuse is often fixed by simple plugging or gluing can easily loosen, fall off or shift position during transportation, handling or installation, leading to ignition failure or delay, seriously affecting the ignition effect and even causing safety accidents.

[0003] When multiple tubes are combined for ignition, the lead wire is usually drawn out from the center of the bottom of the tube, resulting in messy and tangled wiring. It is also inconvenient to quickly adjust the lead wire length and ignition position according to the ignition sequence, resulting in low installation efficiency and easy errors.

[0004] The fuses are mostly produced as a single unit with the fireworks launch tubes. When multiple tubes are combined for firing, the fixed fuse position and the inability to change the length make it impossible to control the firing sequence of the multiple tubes. Utility Model Content

[0005] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a fireworks launching tube structure.

[0006] The technical solution adopted in this utility model includes: An ignition module includes a module base, a charge cavity formed by an inward indentation from the top of the module base, and a ignition channel disposed inside the module base. The bottom of the charge cavity is provided with a ventilated structure to connect the charge cavity with the ignition channel. The launch tube body is fitted outside the ignition module, and its interior has a receiving cavity for accommodating the firework shell; A lead wire fixing component is disposed on the ignition module for fixing the lead wire and positioning one end of the lead wire at or near the entrance of the charge chamber.

[0007] As a preferred embodiment of the present invention, the bottom of the module base extends outward to form a limiting portion, the transmitting tube body is sleeved on the module base, and its end abuts against the limiting portion.

[0008] As a preferred embodiment of this utility model, the limiting part is a limiting ring arranged around the module base; the limiting part has a lead wire notch for the lead wire to pass through.

[0009] As a preferred embodiment of this utility model, the ignition channel and the module base are integrally formed; the ignition channel extends along its bottom toward the charging cavity to form a through groove.

[0010] As a preferred embodiment of this utility model, the lead wire fixing component is a fixing cap, which is detachably connected to the fire transmission channel by means of a sleeve, a snap-fit, or a threaded connection.

[0011] As a preferred embodiment of this invention, the breathable structure is a porous plate formed at the bottom of the loading cavity.

[0012] As a preferred embodiment of this invention, the porous plate is a metal mesh or a ceramic mesh.

[0013] As a preferred embodiment of this invention, the end of the launching tube away from the ignition module is provided with a first sealing member; the top of the propellant chamber is provided with a second sealing member for isolating the receiving chamber.

[0014] As a preferred embodiment of this invention, the first sealing element and / or the second sealing element are paper sheets or plastic films.

[0015] As a preferred embodiment of this invention, the transmitting tube is made of glass or metal.

[0016] The beneficial effects of this utility model are as follows: This utility model, as a fireworks launcher structure, allows for the detachable installation of the lead wire to the ignition module via a lead wire fixing component. This enables quick installation, adjustment, or replacement of the lead wire according to the fireworks display schedule, improving layout flexibility and enhancing the efficiency and accuracy of multi-tube combined fireworks displays. Furthermore, it effectively prevents lead wire displacement or detachment due to vibration or pulling during transportation and installation, fundamentally ensuring the reliability and timeliness of ignition and greatly improving the safety and accuracy of the entire fireworks display system.

[0017] The permeable structure at the bottom of the propellant chamber serves as a flame transfer surface, which can instantly and evenly ignite the propellant in the entire propellant chamber, avoiding the problems of incomplete combustion or unstable pressure peak caused by single-point ignition. This provides continuous and stable thrust for the fireworks projectile, ensuring the consistency of initial launch velocity and launch altitude.

[0018] The lead wire notch on the limiting part allows the lead wire to be led out from the side, avoiding the problem of messy bottom lead wires when multiple tubes are arranged in parallel, making the circuit clear, easy to manage and inspect, and further improving the safety and convenience of operation. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a structural schematic diagram of the ignition module of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1-Ignition module; 11-Base; 111-Limiting part; 112-Lead wire notch; 12-Charging chamber; 13-Ignition channel; 131-Through groove; 14-Ventilating structure; 141-Porous plate; 2- Launch tube body; 21- Receiving cavity; 3-Lead wire fixing component; 31-Fixing cap. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] The following is combined with Figure 1-3 This invention describes a specific embodiment of a fireworks launcher structure, comprising: The ignition module 1 includes a module base 11, a propellant cavity 12 formed by an inward indentation from the top of the module base 11, and a ignition channel 13 disposed inside the module base 11. The bottom of the propellant cavity 12 has a ventilated structure 14 that connects the propellant cavity 12 to the ignition channel 13. Propellant is filled into the propellant cavity 12. After the fuse is ignited, the flame travels through the ignition channel 13 and then through the ventilated structure 14 at the bottom of the propellant cavity 12 to ignite the propellant. The instantaneous combustion of the main propellant generates high-pressure gas, providing power for the launch of the projectile. The ventilated structure 14 allows the flame to pass smoothly while also holding the solid propellant particles above it, preventing them from leaking into the ignition channel 13. Furthermore, because it is connected to the outside air, it also provides oxygen for the combustion of the propellant.

[0025] The launching tube 2 is fitted outside the ignition module 1, and has a receiving cavity 21 inside for accommodating the firework shell. The receiving cavity 21 is used to hold the firework shell, such as a fireworks shell, and to confine the high-pressure gas generated by the ignition module 1 in a closed space, thereby generating thrust to launch the firework shell.

[0026] A lead wire fixing component 3, disposed on the ignition module 1, is used to fix the lead wire and position one end of the lead wire at or near the entrance of the charging chamber 12. The lead wire fixing component 3 is used to fix the position of the lead wire, allowing for detachable installation and removal of the lead wire from the ignition module 1. During production, the ignition module 1 and the launching tube body 2 can be produced simultaneously. In actual use, multiple launching tubes are fixedly connected to the ignition device. The ignition device can combine multiple launching tubes in various arrangements to form Chinese characters, numbers, letters, or graphics, creating different visual effects. In the installation layout of multiple launch tubes, due to the different ignition sequence and ignition position, the length and ignition position of the launch tube lead need to be adjusted to ensure that the end of the lead ignites the gunpowder loaded in the charge chamber 12 at the optimal ignition position and ignition time. The lead is detachably installed with the ignition module 1 through the lead fixing part 3, so that the layout can be adjusted according to actual needs. In addition, during the ignition process, there is a possibility of ignition failure due to lead displacement or detachment during transportation and handling. The convenient installation of the lead during ignition greatly improves the safety and reliability of the product.

[0027] In some embodiments, please refer to Figures 1-2 As shown, the bottom of the module base 11 extends outward to form a limiting part 111, and the transmitting tube 2 is sleeved on the module base 11, with its end abutting against the limiting part 111.

[0028] Specifically, when the launch tube 2 is fitted onto the ignition module 1, its end abuts against the limiting part 111 to prevent the launch tube 2 from sliding further inward on the ignition module 1, ensuring the stability of the internal structure and the consistency of the assembly. Furthermore, the tight fit between the two provides a pressure-bearing and sealing foundation for launch. At the moment of launch, the high-pressure gas will force the launch tube 2 to tend to move outward. The limiting part 111, through its cooperation with the end of the launch tube 2, bears part of the axial force, providing support for the sealing and stability of the entire structure. It should be noted that the high-pressure gas will force the launch tube 2 to have a tendency to move. In actual use, the launch tube 2 of each launch tube will be reinforced and supported by other fixed structures to provide support for the launch tube and avoid related safety issues such as tipping or movement during launch.

[0029] In this embodiment, please refer to Figures 2-3As shown, the limiting part 111 is a limiting ring surrounding the module base 11; the limiting part 111 has a lead wire notch 112 for the lead wire to pass through. The lead wire notch 112 allows the lead wire to be led out from the side, avoiding leading out from the bottom center. This allows the lead wires to be neatly gathered from the side when multiple transmitter tubes are arranged side by side, avoiding messy wiring. It also reduces the wear or pulling that may be caused by the lead wire being accidentally pressed against the bottom of the transmitter tube, improving the laying efficiency and operational safety.

[0030] This embodiment is preferred; please refer to [the relevant documentation]. Figure 2 As shown in Figure 3, the ignition channel 13 and the module base 11 are integrally formed; the ignition channel 13 extends along its bottom towards the propellant chamber 12, forming a through groove 131. The integral formation of the ignition channel 13 and the module base 11 eliminates the assembly gaps that may exist in a split structure, fundamentally preventing the risk of gas leakage from the vicinity of the ignition channel 13 and ensuring airtightness. It also better withstands the impact during launch.

[0031] For details, please refer to Figures 2-3 As shown, the lead wire fixing component 3 is a fixing cap 31, which is detachably connected to the ignition channel 13 by means of a sleeve, snap-fit, or threaded connection. The fixing cap 31, as the lead wire fixing component 3, is sleeved on the lead wire channel, with its end pressing tightly to fix the lead wire to the ignition channel 13, and seals the outlet of the ignition channel 13 to prevent gas leakage, ensuring that all pressure is used to propel the firework. The connection between the fixing cap 31 and the ignition channel 13 can be a detachable connection method such as a sleeve, snap-fit, or threaded connection, improving the ease of assembly and disassembly. In actual use, if improper installation of the lead wire is found or replacement is needed, the fixing cap 31 can be easily removed for adjustment, and then tightened again.

[0032] For further details in this embodiment, please refer to... Figure 3 As shown, the permeable structure 14 is a porous plate 141 formed at the bottom of the propellant chamber 12. The porous plate 141 has a large number of uniformly distributed micropores, which together form high-speed channels for the flame and combustion gases. On the one hand, it provides support for the gunpowder in the propellant chamber 12, withstanding vibrations during production, pressing, and transportation; on the other hand, its porous nature ensures that the ignition flame can penetrate and ignite the gunpowder in the entire propellant chamber 12 in a large area, quickly, and uniformly, thereby obtaining a stable and consistent combustion effect and ensuring the uniformity of the initial velocity and altitude of the launch. It should be noted that most of the gunpowder in the propellant chamber 12 is granular and will not leak through the gaps.

[0033] In the first embodiment of the porous plate 141, please refer to Figure 3As shown, metal mesh can be used, taking advantage of its high strength, high temperature resistance, resistance to combustion impact and non-deformation properties, which can improve the stability during combustion.

[0034] In another preferred embodiment of the porous plate 141, please refer to Figure 3 As shown, the ceramic mesh possesses extremely high fire resistance and chemical stability, making it completely unaffected by corrosion from combustion products. In both of the above embodiments, the permeable structure 14 effectively ensures its structural integrity and functional reliability under combustion conditions, improving product durability and safety.

[0035] In this embodiment, please refer to Figure 1 As shown, the launch tube 2 has a first sealing element at the end away from the ignition module 1; the top of the propellant chamber 12 has a second sealing element for isolating the receiving chamber 21. The first sealing element is located at the open end of the launch tube 2 and is used to seal the receiving chamber 21 to prevent the fireworks shells inside from getting damp or dusty, and to reliably position the fireworks shells inside the tube before launch. The second sealing element is located at the top of the propellant chamber 12 and is used for physical isolation between the propellant chamber 12 and the launch shells inside the receiving chamber 21. This can prevent the gunpowder or components of the upper fireworks shell from falling into the lower propellant chamber 12 and affecting the combustion performance of the propellant; at the same time, it can also provide an initial pressure accumulation process during propellant combustion, and when the pressure reaches a certain threshold, it will break through the sealing element.

[0036] For details, please refer to Figure 1 As shown, the first sealing element and / or the second sealing element are paper sheets or plastic films.

[0037] In a preferred embodiment of the first sealing element and / or the second sealing element, it can be a piece of paper, specifically a traditional and economical material such as kraft paper or sealing paper, which has a certain strength and fragility, can meet the basic sealing and pressure-bearing requirements, and is inexpensive.

[0038] In another preferred embodiment of the first and / or second sealing element, the sealing element may be a plastic film, specifically a polyethylene film, which has moisture-proof and sealing properties, effectively protecting the internal medication from humidity.

[0039] In both of the above implementation methods, the pressure generated during launch can be broken through without creating excessive resistance to the launch.

[0040] Please refer to Figures 1-2 As shown, the emitter tube 2 is made of glass or metal.

[0041] In the first embodiment of the launching tube 2, a glass tube can be used, preferably tempered glass or acrylic glass, which has high transparency, making it easy to observe the state of the internal fireworks projectile, and has high strength and a smooth inner wall, which is beneficial for launching.

[0042] In the second embodiment of the launching tube body 2, a metal tube can be used, which has the highest strength and durability, can withstand higher launching pressure and frequency of use, and is suitable for professional fireworks or occasions that require reuse.

[0043] Working principle of this utility model: Before ignition, the operator first loads the firework shells into the receiving cavity 21 of the launch tube 2, and seals it with the first sealing member. The propellant chamber 12 is pre-filled with granular propellant and is isolated from the receiving cavity 21 above by the second sealing member.

[0044] During ignition, an external ignition signal is transmitted via a lead wire. The lead wire is reliably fixed to the ignition module 1 by the lead wire fastener 3, and its end is precisely guided to the entrance of the ignition channel 13 or the optimal position adjacent to the entrance of the charge chamber 12. After the lead wire is ignited, the flame enters the ignition channel 13. Because the ignition channel 13 and the module base 11 are integrally formed, the sealing of the flame during transmission is ensured, preventing pressure leakage.

[0045] After the flame reaches the bottom of the charging chamber 12, it penetrates evenly and rapidly throughout the entire charging chamber 12 through the venting structure 14. The micropores of the venting structure 14 can effectively support the solid gunpowder particles above, preventing them from leaking prematurely, and can also provide sufficient passage area and combustion oxygen for the flame, ensuring that the propellant inside the charging chamber 12 is instantly and completely ignited.

[0046] After the gunpowder is ignited, it burns rapidly within the sealed space of the propellant chamber 12 and the ignition channel 13, generating high-pressure gas. This high-pressure gas first accumulates pressure until it breaks through the second sealing member above. Subsequently, the high-pressure gas enters the receiving cavity 21 of the launching tube body 2, propelling the firework projectile upwards as a whole, and finally breaking through the first sealing member, launching the firework projectile to the target height with a predetermined initial velocity and angle.

[0047] Throughout the launch process, the launch tube 2, fitted outside the ignition module 1, is tightly abutted against the limiting part 111 of the module base 11. This ensures the stability and consistency of the assembly and also bears part of the axial force generated by the gas at the moment of launch. Working together with the fixing structure of the external ignition device, it ensures the stability of the launch tube, preventing it from moving or tipping over, and ensuring the safety of the ignition. At the same time, the fuse fixing part 3 seals the outlet of the ignition channel 13, effectively preventing gas leakage from the bottom and ensuring that all energy is used to propel the firework shell.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims of this application, they should all fall within the protection scope of this utility model.

Claims

1. A fireworks launcher structure, characterized in that, include: The ignition module (1) includes a module base (11), a charge cavity (12) formed by the inward indentation of the top of the module base (11), and a fire transmission channel (13) disposed inside the module base (11). The bottom of the charge cavity (12) is provided with a ventilated structure (14) to connect the charge cavity (12) with the fire transmission channel (13). The launching tube body (2) is fitted outside the ignition module (1), and its interior has a receiving cavity (21) for accommodating the firework shell; A lead wire fixing member (3) is provided on the ignition module (1) for fixing the lead wire and placing one end of the lead wire at or near the entrance of the charge chamber (12).

2. The structure of a fireworks launching tube according to claim 1, characterized in that: The bottom of the module base (11) extends outward to form a limiting part (111), and the transmitting tube (2) is sleeved on the module base (11), with its end abutting against the limiting part (111).

3. The structure of a fireworks launching tube according to claim 2, characterized in that: The limiting part (111) is a limiting ring provided around the module base (11); the limiting part (111) is provided with a lead wire notch (112) for the lead wire to pass through.

4. The structure of a fireworks launching tube according to claim 1, characterized in that: The fire transmission channel (13) and the module base (11) are integrally formed; the fire transmission channel (13) extends along its bottom toward the charge chamber (12) to form a through groove (131).

5. The structure of a fireworks launching tube according to claim 1, characterized in that: The lead wire fixing component (3) is a fixing cap (31), which is detachably connected to the fire transmission channel (13) by a sleeve, snap-fit, or threaded connection.

6. The structure of a fireworks launching tube according to claim 1, characterized in that: The breathable structure (14) is a porous plate (141) formed at the bottom of the charge chamber (12).

7. A fireworks launching tube structure according to claim 6, characterized in that: The porous plate (141) is a metal mesh or a ceramic mesh.

8. The structure of a fireworks launching tube according to claim 1, characterized in that: The launch tube body (2) is provided with a first sealing member at one end away from the ignition module (1); the top of the charge chamber (12) is provided with a second sealing member for isolating the receiving chamber (21).

9. A fireworks launching tube structure according to claim 8, characterized in that: The first sealing element and / or the second sealing element are paper sheets or plastic films.

10. A fireworks launching tube structure according to claim 1, characterized in that: The launch tube (2) is made of glass or metal.

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