A snowflake-shaped fireworks shell

Abstract

The application discloses a snowflake-shaped effect shell, wherein the effect component in the effect shell body is an effect lead wire, the effect lead wire is composed of an outer coating and a pyrotechnic composition wrapped by the outer coating, and the effect lead wire is provided with a fireproof coating; the effect shell shell body is provided with an opening explosive and a plurality of effect lead wires, and is filled with a light fireproof filler. After the effect shell is launched, ignited and scattered in the high altitude, the combustion of the pyrotechnic composition forms intermittent white light points with bright and dark alternation, and the light points are visible within 1 km. Due to the light point flicker and the moving state in the high altitude, the effect shell does not need to be made into a U-shaped roll or a circular ring shape, and the shape of each light point is similar to the shape of the snowflakes falling; a large number of light points can also form a realistic snowflake dancing effect in the visual field of the audience; and the preparation and installation are simple and easy to implement, and the production cost is low.

Description

Technical Field

[0001] This invention relates to a type of firework shell. Background Technology

[0002] Effect components refer to pyrotechnic materials or individual objects containing pyrotechnic materials that are manufactured through a process. These include bare pyrotechnic effect components such as pellets, columns, blocks, and balls; and non-bare pyrotechnic effect components such as powder packs, inner effect tubes, and fuses. Effect fuses consist of an outer sheath and the pyrotechnic material encased within it. They can be produced using the same manufacturing process as fireworks fuses (ignition wires) by automated equipment (fuse-making machines). The finished product from the fuse-making machine is a long strip of fuse, which is wound up for later use and cut to the appropriate length as needed.

[0003] The effect fuse is lightweight and possesses a certain degree of self-propulsion during combustion, resulting in a longer airtime and making it easy to create a floating and falling effect. It is often used in combination fireworks products to create simulated falling effects, such as falling leaves, falling flowers, or falling snow. Examples include patent documents: "Colorful Falling Leaf Shaped Combination Fireworks" (CN201311243Y); "Red Flower and Falling Leaf Shaped Combination Fireworks" (CN201311242Y); "Snowflake Fireworks" (CN201575755U); and "Chrysanthemum Fireworks" (CN200944023Y).

[0004] The drawbacks of existing technology are:

[0005] Firstly, the application of simulated falling ignition effects of effect fuses in fireworks is currently limited to combination fireworks, especially small firework products, and cannot be applied to firework shells. As mentioned in the patent documents above, they are all applied to combination fireworks.

[0006] Because the two types of products differ in parameters such as launch height (see "Safety Technical Regulations for Large-Scale Fireworks Displays - GB24284-2009"): depending on the projectile specifications and launch tube caliber, the launch height of large-scale fireworks ranges from 90 to 260 meters, with a coverage radius varying from 25 to 30 meters to 95 to 105 meters, and a minimum safe distance for spectators ranging from 100 to 300 meters; small fireworks launch heights are approximately between 10 and 60 meters, with a minimum safe distance for spectators of 50 meters. These differences result in a significant difference in the viewing distance for the two types of fireworks.

[0007] Meanwhile, existing effect fuses primarily use burning explosives, resulting in small propellant charges, low luminescence, and poor brightness. At greater distances, spectators often find it difficult to appreciate their effects. Therefore, effect fuses are only suitable for low-altitude, close-range ignition of combination fireworks (small firework displays).

[0008] Secondly, in existing applications of simulated falling effects using effect fuses, each fuse needs to be manually made into a U-shaped coil or ring shape. This allows the fuse to rotate in the air due to the combustion and spray of the propellant, creating shapes resembling falling leaves, drifting flowers, or falling snow. This rotation significantly increases the difficulty of production. While its use in small quantities within combination fireworks is acceptable, the large capacity and wide coverage of firework shells, along with the far greater number of effect components compared to combination fireworks, make it difficult for firework shell manufacturers to accept, especially given the high labor costs. Summary of the Invention

[0009] To address the aforementioned drawbacks, the technical problem this invention aims to solve is to provide an effect fuse suitable for firework shells, capable of producing a snowflake-like ignition effect. To solve this problem, the technical solution adopted by this invention is a snowflake-shaped firework shell, comprising a shell body. The effect fuse within the shell body is composed of an outer layer and pyrotechnic materials encased in that layer, and the effect fuse is provided with a fire-retardant coating. The shell casing contains detonating agents and several effect fuses, and is filled with a lightweight fire-retardant filler.

[0010] Preferably, the effect lead is not U-shaped or circular.

[0011] Preferably, the pyrotechnic agent of the effect fuse is selected from one of the following formulations:

[0012] The composition and weight ratio of Formula A are as follows: 30-70 parts of barium sulfate or barium nitrate; 5-20 parts of potassium nitrate or ammonium perchlorate; 3-10 parts of strong adhesive powder; 15-35 parts of aluminum-magnesium alloy powder; and 5-20 parts of sulfur.

[0013] The composition and weight ratio of Formula B are as follows: 95-105 parts barium nitrate, 6-10 parts aluminum powder, 4-6 parts potassium nitrate, 4-6 parts sulfur, and 8-12 parts magnesium powder.

[0014] The composition and weight ratio of Formula C are as follows: 85-120 parts barium nitrate, 15-35 parts aluminum-magnesium alloy powder, 4-6 parts potassium dichromate, and 4-5 parts magnesium powder.

[0015] Preferably, the composition and weight ratio of the formula A are as follows: 50 parts barium sulfate or barium nitrate; 10 parts potassium nitrate or ammonium perchlorate; 6 parts strong adhesive powder; 24 parts aluminum-magnesium alloy powder; and 10 parts sulfur.

[0016] Preferably, the composition and weight ratio of formula B are: 100 parts barium nitrate, 8 parts aluminum powder, 5 parts potassium nitrate, 5 parts sulfur, and 10 parts magnesium powder. Preferably, the aluminum powder is bright anodized aluminum powder.

[0017] Preferably, the composition and weight ratio of the formula C are: 100 parts barium nitrate, 25 parts aluminum-magnesium alloy, 5 parts potassium dichromate, and 3 parts magnesium.

[0018] The powdered pyrotechnic materials mentioned above are mixed evenly using standard methods. The finished product, processed using ignition-making equipment, is a long strip of fuse, which is then wound up for later use. This long strip of fuse is cut into effect fuses of suitable length and inserted into the inner cavity of the firework shell according to the installation method for firework effect components; it does not need to be made into a U-shaped coil or ring shape. Preferably, one end of the effect fuse is adhered to the ignition powder or inserted into the ignition fuse. In cases of large-scale use in firework shells, ensuring the ignition of the effect fuse is crucial.

[0019] The ignition agent is a pyrotechnic agent with a low ignition point.

[0020] The beneficial effects of this invention are as follows: after the fireworks shell is launched and detonates, the effect fuse is ignited and scattered in the high sky. The burning of the pyrotechnics alternates between bright and dark, forming intermittently flashing white light spots, which are visible within 1 kilometer. Because the light spots are flashing and moving in the high sky, they do not need to be made into U-shaped or circular shapes. The shape of each light spot is similar to the shape of falling snowflakes. A large number of light spots can also create a realistic snowflake effect in the eyes of the audience. The preparation and installation are simple and easy, and the production cost is low.

[0021] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the principle structure of the fireworks shell in Embodiment 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of the principle structure of the effect lead wire in Embodiment 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the principle structure of the fireworks shell in Embodiment 2 of the present invention;

[0027] Figure 4 This is a schematic diagram of the principle structure of the effect lead wire in Embodiment 2 of the present invention. Detailed Implementation

[0028] Example 1, see appendix Figure 1 , 2 This invention describes a specific structure of a snowflake-shaped firework shell, comprising a shell body consisting of a first spherical shell 5 and a second spherical shell 2. The effect element within the shell body is an effect fuse 1, which consists of an outer sheath 102 and pyrotechnic powder 101 encased within it. The outer sheath 102 of the effect fuse 1 has a fire-retardant coating. One end of the effect fuse 1 is inserted into a ignition fuse 103. The effect fuse 1 does not need to be formed into a U-shaped coil or a ring shape.

[0029] In this example, the pyrotechnic composition and weight ratio of the effect fuse are as follows: 50 parts barium sulfate or barium nitrate; 10 parts potassium nitrate or ammonium perchlorate; 6 parts strong adhesive powder; 24 parts aluminum-magnesium alloy powder; and 10 parts sulfur. All the above powdered pyrotechnics are mixed evenly using conventional methods. The finished product, processed using a fuse-making device, is a long strip of fuse, which is then wound up for later use. The long strip of fuse is cut into effect fuses of suitable length and installed into the inner cavity of the firework shell according to the installation method for firework shell effect components: the detonating explosive 3 is centrally located inside the firework shell, and a large number of effect fuses 1 are distributed around the circumference of the detonating explosive 3. The outer periphery of the effect fuses 1 is filled with a lightweight fireproof filler 4 (such as rice husks or cottonseed husks).

[0030] Example 2, see appendix Figure 3 , 4 This reflects another specific structure of the present invention, which differs from Embodiment 1 in that:

[0031] 1. One end of the effect fuse 9, which consists of an outer layer 902 and the pyrotechnic material 901 enclosed by the outer layer 902, is attached with ignition material 903 and is not inserted into the ignition fuse. The ignition material is composed of potassium nitrate, charcoal powder, and sulfur.

[0032] 2. The first shell 6 of the fireworks shell contains an explosive charge and is surrounded by a lightweight fireproof filler 7; the second shell 8 contains a large number of effect fuses 9 and is surrounded by a lightweight fireproof filler 7.

[0033] 3. In this example, the pyrotechnic composition and weight ratio of the effect fuse are: 100 parts barium nitrate, 8 parts aluminum powder, 5 parts potassium nitrate, 5 parts sulfur, and 10 parts magnesium powder. Preferably, the aluminum powder is bright anodized aluminum powder.

[0034] Example 3 differs from Example 1 in that the pyrotechnic composition and weight ratio of the pyrotechnic agent for the effect fuse are: 100 parts barium nitrate, 25 parts aluminum-magnesium alloy, 5 parts potassium dichromate, and 3 parts magnesium.

[0035] The above-described implementation methods are merely for clearly illustrating the technical solution of the present invention and should not be construed as imposing any limitations on the present invention. The present invention has many known alternatives or modifications in this technical field, and all such modifications or modifications fall within the protection scope of the present invention without departing from its essential meaning.

Claims

1. A snowflake-shaped firework shell, comprising a firework shell body, characterized in that, The effect component inside the firework shell is an effect fuse (1), which consists of an outer sheath (102) and pyrotechnic powder (101) wrapped in the outer sheath (102). The effect fuse (1) is provided with a fireproof coating. The firework shell contains an explosive charge and several effect fuses (1), and is filled with a lightweight fireproof filler. One end of the effect fuse is attached with an ignition charge or inserted into a ignition fuse. The composition and weight ratio of the pyrotechnic powder (101) in the effect fuse (1) are selected from one of the following three formulations: Formula 1. 30-70 parts barium sulfate or barium nitrate; 5-20 parts potassium nitrate or ammonium perchlorate; 3-10 parts strong adhesive powder; 15-35 parts aluminum-magnesium alloy powder; 5-20 parts sulfur. Formula 2. 85-120 parts barium nitrate, 15-35 parts aluminum-magnesium alloy powder, 4-6 parts potassium dichromate, and 4-5 parts magnesium powder; Formula 3. Barium nitrate 95-105 parts, aluminum powder 6-10 parts, potassium nitrate 4-6 parts, sulfur 4-6 parts, magnesium powder 8-12 parts; The powdered pyrotechnic materials are mixed evenly using general methods. The finished product, processed by the ignition-making equipment, is a long strip of fuse, which is then rolled up for later use. The long strip of fuse is cut into effect fuses of suitable length and installed into the inner cavity of the firework shell according to the installation method of the firework shell effect parts. It is not necessary to make it into a U-shaped coil or a ring shape. After the firework shell is launched and detonates, the effect fuse is ignited and scattered in the high sky. The burning of the pyrotechnic materials creates intermittent flashing white light spots by alternating between bright and dark.

2. The snowflake-shaped firework shell as described in claim 1, characterized in that, The composition and weight ratio of the pyrotechnic agent formula one for the effect fuse are as follows: 50 parts barium sulfate or barium nitrate; 10 parts potassium nitrate or ammonium perchlorate; 6 parts strong adhesive powder; 24 parts aluminum-magnesium alloy powder; and 10 parts sulfur.

3. The snowflake-shaped firework shell as described in claim 1, characterized in that, The composition and weight ratio of the pyrotechnic agent formula three for the effect fuse are: 100 parts barium nitrate, 8 parts aluminum powder, 5 parts potassium nitrate, 5 parts sulfur, and 10 parts magnesium powder.

4. The snowflake-shaped firework shell as described in claim 3, characterized in that, The aluminum powder used is aluminum powder that has undergone bright anodizing treatment.

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