Effect piece positioning structure of combined firework paper inner cylinder

Abstract

The utility model discloses an effect piece positioning structure of a combined firework paper inner cylinder, which is characterized in that an explosive and an effect piece are filled in the inner cylinder, the bottom port of the inner cylinder is sealed by a mud head layer, the mud head layer is provided with a lead hole for installing a fire lead, and the upper port of the inner cylinder is sealed by a solid primer or a paperboard. The mud head layer is composed of a cylinder lower portion with a closed bottom end opening and a positioning upper portion. 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. A mud head layer composed of the lower cylinder portion and the upper positioning portion can be obtained only by transforming a mud head layer pressing die, quantitative effect pieces are poured into an inner cavity of the inner cylinder, the poured effect pieces are naturally distributed annularly along the annular cavity under the action of the upper positioning portion, and after the inner cylinder is launched to the high altitude, a circumferential symmetrical distribution model of aerial bright spots is formed. No additional components are needed, no inner cylinder production procedure needs to be changed, and the difficulty of inner cylinder assembly cannot be increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of positioning structure of effect component in combined firework paper inner tube. BACKGROUND

[0002] Combination fireworks 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, initiating explosive and 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, causing the cylinder to break and ignite and throw the effect explosive. The effect explosive displays 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 component in the industry. The bottom port of the inner tube is closed by a mud head layer made by laminating a mold with mud and mud head, and the upper port is closed by a fixed ignition agent or paperboard (paper barba).

[0003] In order to achieve the ring effect in the air by a single inner tube, the existing technology generally adopts the method of adding a cylindrical component in the center of the inner tube, such as the center cartridge in the "pyrotechnic charge positioning mechanism of combination fireworks 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; the center cylinder cavity in the "double-color ring effect fireworks inner tube" disclosed in the Chinese utility model patent document with the authorization announcement number CN 215725474 U, etc.

[0004] The drawbacks of the existing technology are that the addition of the new component changes the production process of the inner tube; the cylindrical component needs to be centrally positioned, which increases the difficulty of assembling the inner tube; and it is not conducive to cost control. UTILITY MODEL CONTENT

[0005] To address the aforementioned drawbacks, the technical problem this utility model aims to solve is to provide a positioning structure for effect components in a combined firework paper inner tube, enabling the creation of a ring-shaped effect in the air using a single inner tube without requiring additional components, altering the inner tube production process, or increasing the difficulty of inner tube assembly. To solve this technical problem, the present utility model adopts a positioning structure for effect components in a combined firework paper inner tube, comprising an inner tube body, an inner tube filled with explosive charge and effect components, a bottom port of the inner tube sealed with a mud layer, the mud layer having a lead hole for installing a ignition fuse, and an upper port of the inner tube sealed with a igniter or cardboard. The mud layer is characterized by comprising a lower cylindrical part sealing the bottom port and a positioning upper part; the positioning upper part is located at the center of the lower cylindrical part, and the effect component is placed within an annular cavity between the positioning upper part and the inner wall of the inner tube, with the explosive charge covering the effect component.

[0006] The beneficial effects of this utility model are that, by simply modifying the mud-layer pressing mold, the mud layer consisting of the lower part of the column and the upper positioning part can be obtained by following the general inner cylinder production process. A certain amount of effect parts are poured into the inner cavity of the inner cylinder. Under the action of the upper positioning part, the poured effect parts are naturally distributed in a ring along the annular cavity. After the inner cylinder is launched into the air, with the explosion of the explosive, the effect parts diffuse from the explosion origin to the surrounding areas, which can conveniently and reliably form a symmetrical arrangement of aerial bright spots. No new components are required, no changes are needed to the inner cylinder production process, and the difficulty of assembling the inner cylinder is not increased.

[0007] Preferably, the upper positioning part is selected from one of a conical upper part, a cylindrical upper part, or a spherical upper part. Further, the upper end of the cylindrical upper part is provided with a chamfer, a rounded head, or a conical tip. This facilitates the guidance of the effect component into the annular cavity.

[0008] To further improve processing efficiency, preferably, a measuring spoon for the effect components is also included, the capacity of which is determined according to the number of effect components that the annular cavity can accommodate.

[0009] Preferably, the lower part of the column and the upper part of the positioning section are provided with lead holes for installing fire-resistant leads. This facilitates processing.

[0010] Preferably, the upper mold of the pressing mold for the mud layer has a cavity centered in the mold head, the shape of which is the same as the upper positioning part, and an upper lead hole is centrally located in the cavity, communicating with the cavity. The lower mold has a lower lead hole in its mold head.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time.

[0012] In the description of the present specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by a person skilled in the art to which the present application belongs. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. When an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a mediating element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or a mediating element can be present at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic view of the outer appearance structure of the inner tube of Example 1;

[0014] Figure 2 is a schematic view of the structure of the A-A section shown in Figure 1

[0015] Figure 3 is a schematic view of the assembly structure of the mud head layer and the effect member of Example 1;

[0016] Figure 4 is a schematic view of the principle structure of the mold for pressing the mud head layer of Example 1;

[0017] Figure 5 is a schematic view of the mud head layer structure of Example 2;

[0018] Figure 6 is a schematic view of the mud head layer structure of Example 3

[0019] Figure 7 is a schematic view of the mud head layer structure of Example 4;

[0020] Figure 8 is a schematic view of the mud head layer structure of Example 5;

[0021] Figure 9 is a schematic view of the mud head layer structure of Example 6. DETAILED DESCRIPTION

[0022] Example 1: Referring to the attached drawings, Figures 1-4 ​, reflect a specific structure of the utility model. It is a kind of effect component positioning structure of combined firework paper inner tube, including inner tube 1 body, the inner cavity of inner tube 1 is filled with open explosive 2 and effect bright bead 3, the bottom port of inner tube 1 is closed with mud head layer, the mud head layer is composed of the lower part 4 of column body and positioning upper part, in the example, the positioning upper part adopts the upper part 5 of cone body.The upper part 5 of cone body is located in the center of the lower part 4 of column body, and a circle of effect bright bead 3 is placed in the annular cavity between the upper part 5 of cone body and the inner tube wall of inner tube 1, and the open explosive 2 covers the effect bright bead 3.In the example, the lower part 4 of column body and the center of the upper part 5 of cone body are provided with a lead hole 7 for installing overfire lead 6, and the upper port of inner tube is closed with solid lead agent layer 8.

[0023] In production, only the mud head layer pressing die needs to be reformed, in the example, the upper die 10 of mud head layer pressing die is provided with a cavity 11 in the center of the cylindrical die head, the shape of cavity 11 is same as the upper part 5 of cone body, and the cavity 11 is provided with an upper lead hole 12 in the center, and the upper lead hole 12 is communicated with the cavity 11.The die head of lower die 13 is provided with a lower lead hole 14.

[0024] The lower end of overfire lead 6 is inserted into the lower lead hole 14, and the die head of lower die 13 is inserted into the bottom port of inner tube 1, and then a proper amount of mud is added from the upper port, and the die head of upper die 10 is inserted into inner tube 1 by oil press (not shown in the figure), and the mud head layer composed of lower part 4 of column body and upper part 5 of cone body can be obtained by pressing the mud head layer by upper die and lower die.

[0025] In the above process, when the upper end of overfire lead 6 is inserted into the upper lead hole 12 of upper die 10, the cavity 11 can also play a guiding role, so that the upper end of overfire lead 6 cannot be smoothly inserted into the upper lead hole 12 and is buried in the mud head layer.

[0026] A proper amount of effect bright bead 3 is poured into the inner cavity of inner tube 1 from the upper port, and the poured effect bright bead 3 is naturally distributed in a ring shape along the annular cavity under the action of the upper part 5 of cone body.In order to further improve the processing efficiency, a quantitative medicine spoon (not shown in the figure) can also be included in the example, 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, only the effect bright beads in the spoon are poured into the inner tube by using the quantitative medicine spoon.Therefore, the technical scheme of the utility model does not need to add new components, does not need to change the production process of inner tube, and does not increase the difficulty of assembling the inner tube.

[0027] Then, the open explosive 2 is loaded into the inner tube 1 according to the general method, and the open explosive 2 covers the effect bright bead 3; and the upper port of inner tube is closed with solid lead agent layer 8. That is, the production of inner tube is completed. In the example, the outer port of lead hole 7 is dotted with tail explosive 9, and the tail effect is generated when ascending. In other embodiments, the tail explosive 9 can also not be dotted.

[0028] The inner cylinder of the embodiment is loaded into the outer cylinder, and after being launched to high altitude, with the explosion of the initiating explosive 2, each effect bright bead 3 distributed in a ring shape along the annular cavity spreads from the explosion origin to the periphery, so that the circumferentially symmetrical arrangement of the air bright spots can be conveniently and reliably formed.

[0029] Embodiment 2: refer to the attached Figure 5 , reflecting another specific structure of the mud head layer of the utility model. The mud head layer is also composed of the columnar lower part 101 with a closed bottom port and the positioning upper part, which is different from the embodiment 1 in that the structure of the positioning upper part is a columnar upper part 102; the center of the columnar lower part 101 and the columnar upper part 102 of the mud head layer is provided with a lead hole 103 for mounting the overfire lead. The rest is the same as the embodiment 1, and will not be repeated here.

[0030] Embodiment 3: refer to the attached Figure 6 , reflecting another specific structure of the mud head layer of the utility model. The mud head layer is composed of a columnar lower part 203 and a columnar upper part 202, which is different from the embodiment 2 in that the upper end of the columnar upper part 202 is provided with a round head 201. It is beneficial to guide the effect component into the annular cavity.

[0031] Embodiment 4: refer to the attached Figure 7 , reflecting another specific structure of the mud head layer of the utility model. The mud head layer is composed of a columnar lower part 301 and a columnar upper part 302, which is different from the embodiment 2 in that the upper end of the columnar upper part 302 is provided with a tapered tip 303. It is beneficial to guide the effect component into the annular cavity.

[0032] Embodiment 5: refer to the attached Figure 8 , reflecting another specific structure of the mud head layer of the utility model. The mud head layer is composed of a columnar lower part 401 and a columnar upper part 402, which is different from the embodiment 2 in that the upper end of the columnar upper part 402 is provided with a chamfer 403. It is beneficial to guide the effect component into the annular cavity.

[0033] Embodiment 6: refer to the attached Figure 9 , reflecting another specific structure of the mud head layer of the utility model. The mud head layer is also composed of the columnar lower part 501 with a closed bottom port and the positioning upper part, which is different from the embodiment 1 in that the structure of the positioning upper part is a spherical upper part 502.

[0034] The above disclosed embodiments of the utility model are only used for helping to set forth the utility model. The embodiments do not describe all the details exhaustively, and also do not limit the utility model to only 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 principle and practical application of the utility model, so that the person 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 the person skilled in the art can make similar improvements without deviating from the connotation of the utility model, so the utility model is limited by the claims and the entire scope and equivalents thereof, and is not limited by the disclosed specific embodiments.

Claims

1. A positioning structure for the effect component of a combined firework paper inner tube, comprising an inner tube body, an inner tube filled with explosive and effect components, the bottom port of the inner tube being sealed with a mud layer, the mud layer having a lead hole for installing a ignition fuse, and the upper port of the inner tube being sealed with a ignition fixative or cardboard, characterized in that, The mud head layer is composed of a column lower part closing the bottom port and a positioning upper part; the positioning upper part is located in the center of the column lower part, and the effect piece is placed in the annular cavity between the positioning upper part and the inner cylinder inner wall, and the opening explosive covers the effect piece.

2. The effect piece positioning structure for a paper inner cylinder of a combination 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 effect piece positioning structure for a paper inner cylinder of a combination 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.

4. A positioning structure of effect pieces for a paper inner cylinder of a combination firework according to any one of claims 1 to 3, characterized in that, The center of the column lower part and the positioning upper part is provided with a lead hole for installing a fire lead.

5. A positioning structure of effect pieces for a paper inner cylinder of a combination firework according to any one of claims 1 to 3, characterized in that, The die head of the upper die of the mud head layer pressing die is provided with a cavity in the center, the shape of the cavity is the same as that of the positioning upper part, the cavity is provided with an upper lead hole in the center, the upper lead hole is through the cavity, and the die head of the lower die is provided with a lower lead hole.

6. The effect piece positioning structure for a paper inner cylinder of a combination firework according to claim 4, wherein The die head of the upper die of the mud head layer pressing die is provided with a cavity in the center, the shape of the cavity is the same as that of the positioning upper part, the cavity is provided with an upper lead hole in the center, the upper lead hole is through the cavity, and the die head of the lower die is provided with a lower lead hole.

7. A positioning structure of effect pieces of a paper inner cylinder of a combination firework according to any one of claims 1 to 3 and 6, characterized in that, The quantitative medicine spoon also includes the effect piece, and the capacity of the quantitative medicine spoon is determined according to the number of effect pieces that can be accommodated by the annular cavity.

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