High-thrust firework

Abstract

The utility model relates to the field of fireworks, and discloses a high-thrust firework which comprises a launching cylinder, sealing paper is fixedly connected to the top end of the inner wall of the launching cylinder, an ignition assembly is arranged on the upper portion of the sealing paper, and a launching assembly is arranged in the launching cylinder. The launching assembly comprises an effect inner cylinder, the effect inner cylinder is pressed at the bottom end of the inner wall of the launching cylinder, a blocking paper sheet is fixedly connected to the middle section of the inner wall of the effect inner cylinder, and a cavity is formed in the inner wall of the effect inner cylinder; the portion, located above the blocking paper piece, in the effect inner cylinder is sequentially filled with propellant powder, clay knots and acousto-optic powder from bottom to top. According to the utility model, the propellant powder is filled in the lengthened effect inner cylinder, so that the thrust transmission path is shortened, the energy loss caused by a gap between the launching cylinder and the effect inner cylinder is reduced, and under the condition of the same propellant powder amount, larger upward thrust can be generated, and the firework launching height can be increased.

Description

Technical Field

[0001] This utility model relates to the field of fireworks, and in particular to a high-thrust firework. Background Technology

[0002] In the structural design of traditional fireworks, the propellant is usually filled at the bottom of the launch tube and sealed with paper before the effect inner tube is installed inside. This structure relies on the assembly relationship between the launch tube and the effect inner tube to realize the launch function of the fireworks.

[0003] However, this assembly method has some shortcomings in actual use of fireworks and needs to be improved.

[0004] On the one hand, the thrust generated by the propellant is easily affected by the gap between the launch tube and the effect inner tube during transmission, resulting in energy loss and limiting the launch height of the fireworks; on the other hand, the effect inner tube is prone to tumbling during the ascent due to uneven force and other factors, affecting the stability and visual appeal of the fireworks.

[0005] Therefore, a high-thrust firework was proposed to solve the above problems. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a high-thrust firework, which aims to improve the problem of large energy loss in the transmission of propellant thrust in the prior art, thus limiting the launch height of the firework.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a high-thrust firework, comprising a launch tube, wherein a sealing paper is fixedly connected to the top of the inner wall of the launch tube, an ignition component is provided on the upper part of the sealing paper, and a launch component is provided inside the launch tube;

[0008] The launching assembly includes an effect inner cylinder, which is press-fitted to the bottom of the inner wall of the launching tube. A sealing paper is fixedly connected to the middle section of the inner wall of the effect inner cylinder. A cavity is opened in the inner wall of the effect inner cylinder. The effect inner cylinder is filled with propellant, clay fragments and sound and light propellant in sequence from bottom to top, located above the sealing paper.

[0009] As a further description of the above technical solution:

[0010] The ignition assembly includes a lead wire for igniting the propellant, the lead wire penetrating the inner surface of the sealing paper.

[0011] As a further description of the above technical solution:

[0012] The inner wall of the inner cylinder is provided with a top seal, and an ignition wire is also provided inside the inner cylinder.

[0013] As a further description of the above technical solution:

[0014] The cavity is located below the sealing paper. The propellant, clay joint, and acoustic-optical propellant are connected in pairs. The lower surface of the propellant is attached to the upper surface of the sealing paper, and the clay joint is bonded to the inner wall of the effect inner cylinder.

[0015] As a further description of the above technical solution:

[0016] One end of the lead wire passes through the upper surface of the launch tube, and the other end of the lead wire passes through the right surface of the inner tube and is connected to the propellant.

[0017] As a further description of the above technical solution:

[0018] The ignition wire passes through the clay section, and its two ends are connected to the acoustic-optical propellant and the propellant, respectively.

[0019] As a further description of the above technical solution:

[0020] The lower surface of the inner cylinder top seal is attached to the upper surface of the acoustic and light-emitting drug.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by filling the propellant into the extended effect inner tube, the thrust transmission path is shortened, and the energy loss caused by the gap between the launch tube and the effect inner tube is reduced. Under the same amount of propellant, a greater upward thrust can be generated, which can increase the launch height of fireworks.

[0023] 2. In this utility model, the extended effect inner cylinder structure optimizes the force distribution, and under the action of the cavity, the upward thrust can be evenly applied to the effect inner cylinder, keeping the effect inner cylinder upright during the rising process, ensuring the stability and visual appeal of the fireworks, and further increasing the launch height of the fireworks. Attached Figure Description

[0024] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;

[0025] Figure 2 This is a three-dimensional cross-sectional view of the launching tube in this utility model;

[0026] Figure 3 This is a three-dimensional cross-sectional view of the transmitting component in this utility model.

[0027] Legend:

[0028] 1. Launch tube; 2. Sealing paper; 3. Ignition assembly; 31. Lead wire; 4. Launch assembly; 41. Effect inner tube; 42. Sealing paper; 43. Propellant; 44. Clay joint; 45. Acoustic and visual propellant; 46. Top sealing of inner tube; 47. Ignition wire; 401. Cavity. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-2 The present invention provides an embodiment of a high-thrust firework, comprising a launch tube 1, which is a tubular structure for supporting and launching an inner tube 41. A sealing paper 2 for maintaining the stability of the inside of the launch tube 1 is fixedly connected to the top of the inner wall of the launch tube 1. The sealing paper 2 is a component that seals the opening at the top of the launch tube 1, and through physical barrier, prevents the internal propellant 43, sound and light propellant 45 and other components from coming into contact with moisture in the air (the pyrotechnics are easily degraded when exposed to moisture). An ignition component 3 for igniting the firework is provided on the upper part of the sealing paper 2, and a launching component 4 is provided inside the launch tube 1.

[0031] Reference Figures 1-3 The launching assembly 4 includes an effect inner cylinder 41, which is elongated and longer than a conventional effect inner cylinder 41. The effect inner cylinder 41 is press-fitted to the bottom end of the inner wall of the launching tube 1. A sealing paper 42 for isolating the propellant 43 and the cavity 401 is fixedly connected to the middle section of the inner wall of the effect inner cylinder 41. The inner wall of the effect inner cylinder 41 has a cavity 401, which is sealed and does not contact the outside. The effect inner cylinder 41 is filled with, from bottom to top, the following materials located above the sealing paper 42: The fireworks include a propellant 43 that powers the fireworks, a clay section 44 that isolates the propellant 43 from the sound and light powder 45, and a sound and light powder 45 that produces sound and light effects. The propellant 43 is the power source for the fireworks launch. It generates high-pressure gas through controlled combustion, which provides launch thrust to the effect inner tube 41. The top of the inner wall of the effect inner tube 41 is provided with an inner tube top seal 46 for sealing the top of the effect inner tube 41. The effect inner tube 41 is also provided with a fuse 47 for igniting the propellant 43 and the sound and light powder 45.

[0032] Reference Figures 1-3The cavity 401 is located below the sealing paper 42. The propellant 43, clay joint 44 and sonic-optical propellant 45 are connected in pairs to maintain tightness and ensure the stability of the high-pressure gas generated by combustion. The lower surface of the propellant 43 is attached to the upper surface of the sealing paper 42. The clay joint 44 is attached to the inner wall of the effect inner cylinder 41. The ignition wire 47 passes through the clay joint 44. The two ends of the ignition wire 47 are connected to the sonic-optical propellant 45 and the propellant 43 respectively to ignite the sonic-optical propellant 45. The lower surface of the top sealing 46 of the inner cylinder is attached to the upper surface of the sonic-optical propellant 45.

[0033] Reference Figures 1-3 The ignition assembly 3 includes a fuse 31 for igniting fireworks. The fuse 31 is used to ignite the propellant 43. The fuse 31 passes through the inner surface of the sealing paper 2. One end of the fuse 31 passes through the upper surface of the launch tube 1, and the other end of the fuse 31 passes through the right surface of the effect inner tube 41 and is connected to the propellant 43. When the fuse 31 is ignited and burns to the point of contact with the propellant 43, it will ignite the propellant 43.

[0034] Working principle: First, the fuse 31 is lit. The flame passes through the sealing paper 2 along the fuse 31 and extends into the effect inner tube 41, igniting the propellant 43. The propellant 43 burns and generates high-pressure gas. Because the effect inner tube 41 is an extended structure and is pressed into the bottom of the launch tube 1, the gas pressure acts directly on the bottom of the launch tube 1.

[0035] High-pressure gas propels the inner cylinder 41 to rise vertically along the axial direction of the launch tube 1. The cavity 401 can evenly apply the force of the high-pressure gas to the inner cylinder 41, preventing it from rolling over. The clay section 44 buffers pressure fluctuations and ensures stable thrust. During the ascent of the inner cylinder 41, the propellant 43 ignites the fuse 47, which gradually burns. When it reaches a certain height, it comes into contact with the sound and light propellant 45 and ignites it. The top seal 46 of the inner cylinder is opened by the internal air pressure or flame, and the sound and light propellant 45 explodes or burns, presenting light and sound effects.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-thrust firework, comprising a launch tube (1), characterized in that: A sealing paper (2) is fixedly connected to the top of the inner wall of the launching tube (1), an ignition component (3) is provided on the upper part of the sealing paper (2), and a launching component (4) is provided inside the launching tube (1). The launching assembly (4) includes an effect inner cylinder (41), which is pressed onto the bottom end of the inner wall of the launching cylinder (1). A sealing paper piece (42) is fixedly connected to the middle section of the inner wall of the effect inner cylinder (41). A cavity (401) is opened in the inner wall of the effect inner cylinder (41). The effect inner cylinder (41) is filled with propellant (43), clay knot (44) and sound and light propellant (45) from bottom to top above the sealing paper piece (42).

2. The high-thrust firework according to claim 1, characterized in that: The ignition assembly (3) includes a lead wire (31) for igniting the propellant (43) and the lead wire (31) penetrates the inner surface of the sealing paper (2).

3. A high-thrust firework according to claim 1, characterized in that: The inner wall of the inner wall of the inner effect cylinder (41) is provided with an inner cylinder top seal (46), and the inner wall of the inner effect cylinder (41) is also provided with a fuse (47).

4. A high-thrust firework according to claim 1, characterized in that: The cavity (401) is located below the sealing paper (42). The propellant (43), clay joint (44) and acoustic-optical propellant (45) are connected in pairs. The lower surface of the propellant (43) is attached to the upper surface of the sealing paper (42). The clay joint (44) is bonded to the inner wall of the effect inner cylinder (41).

5. A high-thrust firework according to claim 2, characterized in that: One end of the lead wire (31) passes through the upper surface of the launch tube (1), and the other end of the lead wire (31) passes through the right surface of the inner tube (41) and is connected to the propellant (43).

6. A high-thrust firework according to claim 3, characterized in that: The ignition wire (47) passes through the clay section (44), and the two ends of the ignition wire (47) are connected to the acoustic and optical propellant (45) and the propellant (43), respectively.

7. A high-thrust firework according to claim 3, characterized in that: The lower surface of the inner cylinder top seal (46) and the upper surface of the acoustic and light drug (45) are attached.

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