Effect piece positioning structure of compression molding firework inner cylinder

Abstract

The utility model discloses an effect piece positioning structure of a compression-molded firework inner cylinder, a sealing layer of a bottom port of the inner cylinder and an inner cylinder body are of an integrated compression-molded structure, the sealing layer is provided with a lead hole for installing a fire-passing lead, and the sealing layer is composed of a cylinder lower part for sealing the bottom port and a positioning upper part. The positioning upper portion is located in the center of the column lower portion, an effect piece is placed in an annular cavity between the positioning upper portion and the inner side barrel wall of the inner barrel, and the explosive covers the effect piece. Quantitative effect pieces are poured into the inner cavity of the inner barrel, the poured effect pieces are naturally and annularly distributed along the annular cavity under the action of the positioning upper part, production and assembly are simple, and the production efficiency is improved; after the inner cylinder is launched to the high altitude, along with the explosion of the explosive, the effect piece diffuses from the explosion original point to the periphery, and the circumferential symmetrical arrangement shape of the bright spots in the air can be conveniently and reliably formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a positioning structure of effect part of combined firework inner tube. BACKGROUND

[0002] The combined firework is a firework product combined by multiple outer tubes, and the inner tube is loaded into the inner cavity of the outer tube. Two kinds of pyrotechnic materials, namely, the initiating explosive and the effect explosive, need to be filled in the inner tube. The initiating explosive is ignited by the ignition wire, and explodes after being launched to high altitude, so that the tube body is broken and ignites and throws the effect explosive. The effect explosive shows the preset fireworks effect at high altitude. The effect explosive (pyrotechnic charge) is a pyrotechnic material used to produce light, sound, color, shape, smoke, etc. The effect explosive in the inner tube generally exists in the form of bright beads and explosive columns, which is also called effect part in the industry. In the traditional process, the bottom port of the inner tube is closed by a mud head layer formed by mud and a pressing mold, and the upper port is closed by a fixed ignition agent or a paper board (paper bar).

[0003] In order to realize the ring effect in the air by a single inner tube, the existing technology generally adopts the method of adding a cylindrical member in the center of the inner tube, such as the center cartridge in the "pyrotechnic charge positioning mechanism of combined firework inner tube" disclosed in the Chinese invention patent document with the authorization announcement number CN 106895747 B; the center tube in the "firework structure with air ring effect" disclosed in the Chinese invention patent document with the application publication number CN 111649627 A; and the center tube cavity in the "firework inner tube with double-color ring effect" disclosed in the Chinese utility model patent document with the authorization announcement number CN 215725474 U.

[0004] The disadvantage of the existing technology is that the new component needs to be centrally positioned, which leads to complex production and assembly of the inner tube, and the inner tube cannot be produced by molding, so the production efficiency is low. UTILITY MODEL CONTENT

[0005] The utility model provides an effect part positioning structure of mould pressing forming firework inner tube, can realize the annular effect in the air through single inner tube, effectively improves the production efficiency of firework inner tube, in order to solve above-mentioned technical problem, the technical scheme that the utility model adopts is an effect part positioning structure of mould pressing forming firework inner tube, including inner tube body, fills and opens the explosive and effect part in the inner tube, and the upper end of inner tube is closed with solid lead agent or paper board, its characterized in that, the sealing layer of inner tube bottom end is the integrated structure of mould pressing forming with inner tube body, the lead wire hole of installing overfire lead wire is equipped in sealing layer, sealing layer is composed of the cylinder lower part of closed bottom end and positioning upper part, positioning upper part is located in the center of cylinder lower part, and the annular cavity between positioning upper part and inner tube inner side cylinder wall is built in effect part, and the effect part is covered by the explosive.

[0006] The utility model discloses the beneficial effect lies in, the sealing layer and inner tube body are the integrated structure of mould pressing forming, quantitative effect part is poured into the inner cavity of inner tube, under the action of positioning upper part, the effect part of pouring is natural along the annular cavity annular distribution, and simple production and assembly are favorable to the improvement of production efficiency, after the inner tube is launched to high altitude, along with the explosion of the explosive, the effect part spreads to all around from the explosion origin, can conveniently and reliably form the circumferential symmetry arrangement modeling of aerial bright spot.

[0007] Preferably, the structure of the positioning upper part is selected from one of a conical upper part, a cylindrical upper part, and a spherical upper part. Further, the upper end of the cylindrical upper part is provided with a chamfer, a round head, or a tapered tip. This is conducive to guiding the effect part into the annular cavity.

[0008] To further improve the processing efficiency, preferably, the effect part positioning structure further comprises a quantitative medicine spoon for the effect part. The capacity of the quantitative medicine spoon is determined according to the number of effect parts that can be accommodated in the annular cavity.

[0009] Preferably, the center of the cylinder lower part and the positioning upper part is provided with a lead wire hole for installing an overfire lead wire. This is convenient for processing.

[0010] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time.

[0011] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. 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 term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. When an element is referred to as being "attached to" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intervening element. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the inner cylinder structure of Example 1;

[0013] Figure 2 for Figure 1 A schematic diagram of the structure of section AA shown;

[0014] Figure 3 This is a schematic diagram of the assembly structure of the sealing layer and effect component in Example 1;

[0015] Figure 4 This is a schematic diagram of the sealing layer structure in Example 2;

[0016] Figure 5 This is a schematic diagram of the sealing layer structure in Example 3.

[0017] Figure 6 This is a schematic diagram of the sealing layer structure in Example 4;

[0018] Figure 7 This is a schematic diagram of the sealing layer structure in Example 5;

[0019] Figure 8 This is a schematic diagram of the sealing layer structure in Example 6. Detailed Implementation

[0020] See appendix Figures 1-3 This describes a specific structure of the present invention. It is a positioning structure for the effect component of a molded fireworks inner tube, including an inner tube 1 body, an explosive charge 2 and effect beads 3 filled in the inner cavity of the inner tube 1, and the bottom port of the inner tube 1 is sealed with a sealing layer, which is an integral structure molded with the inner tube body.

[0021] The sealing layer is composed of a column lower part 4 closing the bottom port and a positioning upper part, in the example, the positioning upper part is a conical upper part 5. The conical upper part 5 is located in the center of the column lower part 4, and a ring of effect bright beads 3 is placed in the annular cavity between the conical upper part 5 and the inner side wall of the inner cylinder 1, and the opening explosive 2 covers the effect bright beads 3. In the example, the center of the column lower part 4 and the conical upper part 5 of the sealing layer is provided with a lead hole 7 for installing the over-fire lead 6, and the upper port of the inner cylinder is closed by the solidifying agent layer 8.

[0022] In production, the sealing layer composed of the column lower part 4 and the conical upper part 5 is integrally formed with the inner cylinder body by mold pressing. A certain amount of effect bright beads 3 is poured into the inner cavity of the inner cylinder 1 from the upper port, and the poured effect bright beads 3 are naturally distributed in a ring shape along the annular cavity under the action of the conical upper part 5. In order to further improve the processing efficiency, a quantitative medicine spoon (not shown in the figure) can also be provided in production, and the capacity of the quantitative medicine spoon is determined according to the number of effect bright beads that can be accommodated in the annular cavity. In operation, the effect bright beads are poured into the inner cylinder by using the quantitative medicine spoon to scoop up the full spoon of effect bright beads. Then, the opening explosive 2 is loaded into the inner cylinder 1 according to the general method, and the opening explosive 2 covers the effect bright beads 3; the upper port of the inner cylinder is closed by the solidifying agent layer 8. That is, the production of the inner cylinder is completed.

[0023] After the inner cylinder of the embodiment is loaded into the outer cylinder and launched to high altitude, with the explosion of the opening explosive 2, each effect bright bead 3 distributed in a ring shape along the annular cavity spreads from the explosion origin to the surrounding, and the circumferentially symmetrical arrangement pattern of the air bright spot can be conveniently and reliably formed.

[0024] Embodiment 2: refer to the attached Figure 4 , reflecting another specific structure of the sealing layer of the utility model. The sealing layer is also composed of a column lower part 101 closing the bottom port and a positioning upper part, which is different from embodiment 1 in that the structure of the positioning upper part is a cylindrical upper part 102; the center of the column lower part 101 and the cylindrical upper part 102 of the sealing layer is provided with a lead hole 103 for installing the over-fire lead. The rest is the same as embodiment 1, and will not be repeated here.

[0025] Embodiment 3: refer to the attached Figure 5 , reflecting another specific structure of the sealing layer of the utility model. The sealing layer is composed of a column lower part 203 and a cylindrical upper part 202, which is different from embodiment 2 in that the upper end of the cylindrical upper part 202 is provided with a round head 201. It is beneficial to guide the effect part into the annular cavity.

[0026] Embodiment 4: refer to the attached Figure 6 , reflecting another specific structure of the sealing layer of the utility model. The sealing layer is composed of a column lower part 301 and a cylindrical upper part 302, which is different from embodiment 2 in that the upper end of the cylindrical upper part 302 is provided with a conical tip 303. It is beneficial to guide the effect part into the annular cavity.

[0027] Embodiment 5: see attached Figure 7 , reflecting another specific structure of the sealing layer of the utility model. The sealing layer is composed of a lower columnar part 401 and an upper columnar part 402, which is different from that of Embodiment 2 in that the upper end of the upper columnar part 402 is provided with a chamfer 403. It is beneficial to guide the effect component into the annular cavity.

[0028] Embodiment 6: see attached Figure 8 , reflecting another specific structure of the sealing layer of the utility model. The sealing layer is also composed of a lower columnar part 501 closing the bottom port and a positioning upper part, which is different from that of Embodiment 1 in that the structure of the positioning upper part is a spherical upper part 502.

[0029] The above disclosed embodiments of the utility model are only used to help explain the utility model. The embodiments do not describe all the details and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and combines the drawings to specifically describe these embodiments, in order to better explain the principles and practical application of the utility model, so that the skilled in the art can well understand and utilize the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model. Therefore, the utility model is limited by the claims and their entire scope and equivalents, not by the disclosed specific embodiments.

Claims

1. A positioning structure for effect components in a molded fireworks inner tube, comprising an inner tube body, an inner tube filled with explosive charge and effect components, and an upper end of the inner tube sealed with a bonding agent or cardboard, characterized in that, The sealing layer of the inner cylinder bottom end port and the inner cylinder body are integrally formed by mold pressing, the sealing layer is provided with a lead hole for installing a lead wire, the sealing layer is composed of a column lower part for closing the bottom end port and a positioning upper part, the positioning upper part is located at the center of the column lower part, an effect part is placed in the annular cavity between the positioning upper part and the inner cylinder inner wall, and the effect part is covered by an explosive.

2. The positioning structure for effect pieces of an inner tube of a molded firework according to claim 1, wherein The structure of the positioning upper part is selected from one of a conical upper part, a cylindrical upper part and a spherical upper part.

3. The positioning structure for effect pieces of an inner tube of a molded firework according to claim 2, wherein The upper end of the cylindrical upper part is provided with a chamfer, a round head or a tapered tip, which is beneficial to guide the effect part into the annular cavity.

4. The positioning structure for effect pieces of an inner tube of a molded firework according to any one of claims 1 to 3, wherein The center of the column lower part and the conical upper part is provided with a lead hole for installing a lead wire.

5. The positioning structure for effect pieces of an inner tube of a molded firework according to any one of claims 1 to 3, wherein The effect part is further provided with a dosing spoon, and the capacity of the dosing spoon is determined according to the number of effect parts that can be accommodated by the annular cavity.

6. The effect piece positioning structure for a molded fireworks inner tube according to claim 4, wherein The effect part is further provided with a dosing spoon, and the capacity of the dosing spoon is determined according to the number of effect parts that can be accommodated by the annular cavity.

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