Effect piece annular positioning structure of combined firework inner cylinder

Abstract

The utility model discloses an effect member annular positioning structure of a combined firework inner cylinder, the inner cylinder is filled with an explosive and an effect member, the bottom port of the inner cylinder is sealed by a mud head layer, the center of the mud head layer is provided with a lead hole for installing a fire-passing lead, and the end face of the mud head layer in the inner cavity of the inner cylinder is provided with a plurality of concave areas. The concave areas are evenly distributed around the circumference of the lead hole, and the concave areas can partially or completely contain the effect piece. The mud head layer with a plurality of concave areas can be obtained by only transforming a mud head layer pressing mold according to a common inner barrel production process, and a circumferential symmetrical arrangement model of bright spots in the air can be conveniently and reliably formed; no newly-added components are needed, no inner cylinder production procedure needs to be changed, and raw material cost and assembling labor cost cannot be increased. The mould can be transformed only by adding a plurality of bulges corresponding to the concave areas on the upper mould, and the mould is simple and easy to transform.

Description

Technical Field

[0001] The utility model relates to a positioning structure of an effect part in a paper inner cylinder of a combined firework. Background Art

[0002] A combined firework is a firework product composed of multiple outer cylinders, and an inner cylinder is placed in the inner cavity of the outer cylinder. Two kinds of pyrotechnic drugs, namely blasting charge and effect charge, need to be filled in the inner cylinder. The blasting charge is ignited by a firing fuse, explodes after being launched into the air, breaks the cylinder body and ignites and throws out the effect charge; the effect charge shows a preset firework effect in the air. The effect charge (Pyrotechnic charge) is a pyrotechnic drug used to produce effects such as light, sound, color, shape, and smoke. The effect charge in the inner cylinder generally exists in the form of bright beads, medicine columns, etc., and is also called an effect part in the industry. The bottom port of the inner cylinder is sealed with a mud head layer formed by pressing a mud and mud head layer pressing mold, and the upper port is sealed with a fixing agent or cardboard (paper baba). The mud head layer pressing mold includes an upper mold and a lower mold. The mold heads of the upper mold and the lower mold are both cylinders corresponding to the size of the inner cavity of the inner cylinder. The working ends of the two cylinders are both provided with a lead hole in the center. The lower end of the firing fuse is inserted into the lead hole of the lower mold. The mold head of the lower mold is stuffed into the bottom port of the inner cylinder. Appropriate amount of mud is added from the upper port. The oil press drives the mold head of the upper mold to insert into the inner cylinder from the upper port. The upper end of the firing fuse is correspondingly inserted into the lead hole of the upper mold. The upper and lower mold heads cooperate to press and form the mud head layer.

[0003] In order to achieve an aerial circular effect through a single inner cylinder in a combined firework, in the prior art, a method of adding a cylindrical member in the center of the inner cylinder is mostly adopted. For example, the central cartridge in the "pyrotechnic drug positioning mechanism of a combined firework inner cylinder" disclosed in the Chinese invention patent document with the authorization announcement number CN 106895747 B; another example is the central tube in the "firework structure with an aerial circular effect" disclosed in the Chinese invention patent application publication number CN 111649627 A; the central tube cavity in the "firework inner cylinder with a two-color circular effect" disclosed in the Chinese utility model patent document with the authorization announcement number CN 215725474 U, etc.

[0004] The disadvantages of the prior art are that the addition of new components leads to changes in the production process of the inner cylinder and increases in raw material costs and assembly labor costs. Content of the Utility Model

[0005] To address the above drawbacks, the technical problem to be solved by the present utility model is to provide an annular positioning structure for effect components in the inner cylinder of a combined fireworks, which can achieve an annular effect in the air through a single inner cylinder without adding new components, without changing the inner cylinder production process, and without increasing the raw material cost and assembly labor cost. To solve the above technical problem, the technical solution adopted by the present utility model is an annular positioning structure for effect components in the inner cylinder of a combined fireworks, including an inner cylinder body. The inner cylinder is filled with blasting powder and effect components. The bottom port of the inner cylinder is sealed with a clay head layer, and a lead hole for installing a firing lead is provided in the center of the clay head layer. It is characterized in that a plurality of concave areas are provided on the end face of the clay head layer located in the inner cavity of the inner cylinder, and the concave areas are evenly distributed around the circumference of the lead hole, and the size of the concave areas can partially or completely accommodate the effect components.

[0006] The beneficial effect of the present utility model is that only by modifying the clay head layer pressing mold, a clay head layer with a plurality of concave areas can be obtained according to the general inner cylinder production process. Pour a fixed amount of effect components into the inner cavity of the inner cylinder, and the effect components poured based on gravity fall into each concave area and are annularly distributed. After the inner cylinder is launched into the air, with the explosion of the blasting drug, the effect components diffuse from the explosion origin to the surrounding, and can conveniently and reliably form a circumferentially symmetric arrangement pattern of bright spots in the air; without adding new components, without changing the inner cylinder production process, and without increasing the raw material cost and assembly labor cost. The modification of the mold only needs to add a plurality of protrusions corresponding to the concave areas on the upper mold, and the mold modification is simple and easy to implement.

[0007] The shape of the concave area can be any shape that can partially or completely accommodate the effect component. In one embodiment, the concave area is a circular blind hole. In one embodiment, the size of the circular blind hole can at least accommodate one-third of a single effect component.

[0008] To further improve the processing efficiency, preferably, it further includes a dosing spoon for the effect components, and the number of effect components that the dosing spoon can hold is determined according to the number of the concave areas.

[0009] In one embodiment, the edges of two adjacent concave areas are close to each other. This can prevent the retention of effect components between the two concave areas and affect the filling efficiency of the annular effect components.

[0010] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages.

[0011] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0012] It should be understood that the orientation or positional relationships indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0013] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0014] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0015] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0016] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the combined fireworks inner cylinder for Embodiment 1.

[0018] Figure 2 For Figure 1 It is a schematic diagram of the longitudinal sectional structure of the A-A plane shown.

[0019] Figure 3 It is a schematic diagram of the top view structure of the mud head layer for Embodiment 1.

[0020] Figure 4 It is a schematic diagram of the mold structure for Embodiment 1.

[0021] Figure 5 It is a schematic diagram of the top view structure of the mud head layer for Embodiment 2. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Embodiment 1: Refer to the attached Figures 1-4 , which reflects a specific structure of the present utility model. The effect part annular positioning structure of the combined fireworks inner cylinder includes an inner cylinder 1, an explosion-opening charge 2 and a bright bead effect part 3 are filled in the inner cylinder 1, the bottom port of the inner cylinder 1 is closed by a mud head layer 4, and a lead hole 6 for installing an overfire lead 5 is provided in the center of the mud head layer 4.

[0023] Six concave areas 7 are provided on the end surface of the mud head layer 4 located in the inner cavity of the inner cylinder 1, the concave areas 7 are evenly distributed around the circumference of the lead hole 6, and the size of the concave areas 7 can partially or completely accommodate the bright bead effect part 3. In the example, the edges of two adjacent concave areas 7 are close to each other to avoid the retention of effect parts between the two concave areas 7.

[0024] The shape of the concave area 7 can be any shape that can partially or completely accommodate a single effect piece. In the example, the concave area 7 is a circular blind hole, and the size of the circular blind hole can accommodate one third of a single bright bead effect piece 3.

[0025] By adopting the above technical solution, it is only necessary to modify the pressing mold of the mud layer 4, such as Figure 4 As shown, the modification of the mold only requires adding six protrusions 103 corresponding to the concave areas 7 on the die head of the upper mold 101 (not shown in the figure). According to the general inner tube production process, a mud head layer with several concave areas can be obtained. The mold modification is simple and easy: the hydraulic press drives the die head of the upper mold to insert into the inner cavity of the inner tube 1 from the upper port of the inner tube 1, and the fire lead 5 is correspondingly inserted into the lead holes 104 of the upper and lower molds. The upper mold 101 and the lower mold 102 cooperate to press the mud head layer 4 into shape, and the above-mentioned mud head layer 4 with six concave areas 7 can be obtained.

[0026] After the mud layer 4 is formed, a quantitative medicine spoon (not shown in the figure) that can only scoop up six bright bead effect pieces 3 is used to pour six bright bead effect pieces 3 into the inner cavity of the inner tube 1. The bright bead effect pieces 3 poured in by gravity fall into six concave areas 7 in a circular distribution. The size of the circular blind hole can accommodate one-third of a single bright bead effect piece 3, which can ensure that the bright bead effect piece 3 falls into the concave area 7 reliably.

[0027] Then the explosive charge 2 is filled, and the upper end of the inner tube 1 is sealed with a solid primer 8.

[0028] After the inner tube 1 is launched into the sky, as the explosive 2 explodes, the bright bead effect parts 3 spread from the explosion origin to the surrounding areas, which can easily and reliably form a circularly symmetrical arrangement of bright spots in the sky - that is, a ring effect; during the entire process, no new components need to be added, and the inner tube production process does not need to be changed, which will not lead to an increase in raw material costs and assembly labor costs.

[0029] In other embodiments, other effect parts can be buried in the explosive charge 2 above the bright bead effect part 3, and the other effect parts refer to effect parts that are different from the firing effect of the bright bead effect part 3. The firing effect includes two aspects: shape (such as willow, flash, wave, coconut, crown, etc.) and light color (such as gold, silver, red, green, etc.), which can be completely different in both aspects or only one aspect can be different. A single inner tube can achieve the combination of annular effect and other effects, and construct more types of aerial firing shapes.

[0030] Example 2: See attached Figure 5 , reflecting another specific structure of the utility model. The difference from Example 1 is that, in the example, the shape of the concave area 12 provided on the end surface of the mud layer 11 in the inner cavity of the inner tube 10 is a trapezoid. The trapezoidal concave area 12 can partially accommodate the bright bead effect piece 13.

[0031] In other embodiments, the shape of the concave area may be any shape capable of partially or fully accommodating the effect member.

[0032] The embodiments of the present utility model disclosed above are only used to help explain the present utility model. The embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and combines the accompanying drawings to specifically describe these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. However, the present 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 present utility model. Therefore, the present utility model is only limited by the claims and their full scope and equivalents, and is not limited by the specific embodiments disclosed.

Claims

1. An annular positioning structure for effect parts of a combined firework inner tube, comprising an inner tube body, wherein the inner tube is filled with explosive and effect parts, the bottom end of the inner tube is sealed with a mud layer, and a lead hole for installing a pyrotechnic fuse is provided in the center of the mud layer, characterized in that: A plurality of concave areas are arranged on the end surface of the mud layer in the inner cavity of the inner tube. The concave areas are evenly distributed around the circumference of the lead-in hole, and the size of the concave areas can partially or completely accommodate the effect part.

2. The annular positioning structure of the effect piece of the combined firework inner tube as claimed in claim 1, characterized in that: The recessed area is a circular blind hole.

3. The annular positioning structure of the effect piece of the combined firework inner tube as claimed in claim 2, characterized in that: The size of the circular blind hole can at least accommodate one third of a single effect component.

4. The annular positioning structure of the effect piece of the combined firework inner tube according to any one of claims 1 to 3, characterized in that: The edges of two adjacent concave areas are close to each other.

5. The annular positioning structure for effect parts of the combined firework inner tube according to any one of claims 1 to 3, characterized in that: It also includes a quantitative medicine spoon for the effect parts, and the number of effect parts that can be accommodated by the quantitative medicine spoon is determined according to the number of the concave areas.

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