Firework inner cylinder pyrotechnic composition positioning mechanism with annular effect

Abstract

The utility model discloses a firework inner cylinder pyrotechnic composition positioning mechanism with an annular effect, a central cartridge case for accommodating an explosive is arranged at the central axis position of an inner cavity of a firework inner cylinder, a fire passing channel is arranged on the side wall of the central cartridge case, and a plurality of partition plates are distributed on the outer side wall of the central cartridge case; the partition plates divide the area between the center cartridge case and the inner side barrel wall of the inner barrel into a plurality of filling units for loading effect pieces, and the filling units are evenly distributed around the periphery of the center cartridge case. The air annular effect formed by multiple effect pieces can be achieved, work is reliable, and assembling is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a firework inner tube's firework powder positioning mechanism. BACKGROUND

[0002] In the prior art, a Chinese patent document with the authorization announcement number CN106895747A discloses a "firework powder positioning mechanism of combined firework inner tube" inner cavity middle shaft position of inner tube is equipped with the center cartridge containing the opening explosive, the side wall of the center cartridge is provided with the fire passageway, the lower end of the center cartridge is closed, and the upper end of the center cartridge can be inserted into the fire lead; the device effect part is arranged between the center cartridge and the inner tube inner side cylinder wall, and the effect part is evenly distributed around the center cartridge. The center cartridge fills the opening explosive, and the effect part is limited between the center cartridge and the inner tube inner side cylinder wall. After the inner tube is launched to high altitude, with the center explosion of the opening explosive, the effect part spreads from the explosion origin to the four directions, which can conveniently and reliably form the regular circumferential symmetry arrangement modeling of the air bright spot (explosion point, burning point) or trajectory (tail trace). That is, the single firework realizes the air ring effect.

[0003] The disadvantage of the prior art is that the air ring effect is composed of one effect part, and the air ring effect composed of multiple effect parts cannot be realized. The burning effect is relatively monotonous. UTILITY MODEL CONTENT

[0004] In order to solve the above-mentioned disadvantages, the technical problem to be solved by the utility model is to provide a firework inner tube firework powder positioning mechanism, which can realize the air ring effect composed of multiple effect parts. In order to solve the above-mentioned technical problem, the utility model adopts the technical scheme of a ring effect firework inner tube firework powder positioning mechanism, the middle shaft position of the inner cavity of the firework inner tube is provided with a center cartridge containing the opening explosive, the side wall of the center cartridge is provided with a fire passageway, characterized in that a plurality of partitions are distributed on the outer side wall of the center cartridge, the partitions separate the area between the center cartridge and the inner tube inner side cylinder wall into a plurality of filling units loading effect parts, and the plurality of filling units are evenly distributed around the outer periphery of the center cartridge.

[0005] The utility model has the beneficial effects that the air ring effect composed of multiple effect parts can be realized, the work is reliable, and the assembly is convenient.

[0006] Preferably, the upper end or the lower end of the center cartridge is provided with a positioning seat for positioning the center cartridge on the inner tube axis, the positioning seat is nested in the inner cavity of the inner tube, and a through hole is arranged in the center of the positioning seat for the fire lead to pass through. The assembly is convenient.

[0007] The fire-passing channel provided on the side wall of the center cartridge can be in various forms such as a hole, a slit, etc., as long as the ignited bursting charge can ignite the effect charge outside through the channel. Preferably, the fire-passing channel is a plurality of round holes distributed on the side wall of the center cartridge. The center cartridge has good fire-passing performance.

[0008] Of course, any product implementing the present application does not necessarily need to achieve all the advantages mentioned above at the same time.

[0009] In the description of the present application, the description of the terms "one embodiment", "example", "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 description, 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 those 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 related listed items. When an element is referred to as "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 "connected to" another element, it can be directly connected to the other element or there can be a mediating element. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The first view schematic diagram of the principle structure of the center cartridge of the embodiment;

[0011] Figure 2 The second view schematic diagram of the principle structure of the center cartridge of the embodiment;

[0012] Figure 3 The assembly principle structure schematic diagram of the center cartridge and the inner tube of the firework of the embodiment;

[0013] Figure 4 The overall principle structure schematic diagram of the inner tube of the firework of the embodiment. DETAILED DESCRIPTION

[0014] Referring to the accompanying drawings Figures 1-4, reflect a specific structure of the utility model. The ring effect's firework inner tube firework powder positioning mechanism, the inner cavity's central axis position of firework inner tube 1 is equipped with the center cartridge 2 containing the opening explosive, the side wall of center cartridge 2 is distributed with several round holes 3 and is formed into the fire passageway. The outer side wall of center cartridge 2 is distributed with four baffle plates 4, the baffle plate 4 separates the area between center cartridge 2 and the inner side cylinder wall of inner tube 1 into four filling units, and the four filling units are evenly distributed around the outer periphery of center cartridge 2. Different kinds of bright beads 5 are filled in the four filling units respectively,

[0015] In the example, the lower end of the center cartridge 2 is provided with a positioning seat 6 for positioning the center cartridge 2 on the central axis of the inner tube 1. The cylindrical positioning seat 6 is nested in the inner cavity of the inner tube 1, and the center of the positioning seat 6 is provided with a through hole 8 for the passage of the fire lead 7.

[0016] In use, the center cartridge 2 is filled with opening explosive (not shown in the figure), and four different effect bright beads 5 are respectively limited in the four filling units between the center cartridge 2 and the inner side cylinder wall of the inner tube 1. The top end of the inner tube 1 above the center cartridge 2 is closed by an upper mud layer 9; the inner cavity of the inner tube 1 below the positioning seat 6 is closed by a lower mud layer 10, and the inner tube 1 below the lower mud layer 10 can be further provided with an ignition firework 12 and a launching firework 13. One end of the fire lead 14 is buried in the launching firework 13, and the other end sequentially passes through the ignition firework 12, the lower mud layer 10, the through hole 8 and is buried in the opening explosive of the center cartridge 2.

[0017] The inner tube 1 is inverted (i.e. the end of the fire lead 13 faces downward) in the outer tube (not shown in the figure), and the outer tube is assembled according to the traditional process. After igniting the ignition lead 15, the launching firework 13 explodes and does work to launch the inner tube 1 to high altitude, and the fire lead 13 transmits fire to make the opening explosive in the center of the inner tube 1 explode, and the four effect bright beads 5 spread from the explosion origin to all directions, and combine to form an aerial ring effect, i.e. the aerial bright spots (explosion points, ignition points) or trajectories (trails) are regularly arranged in a circumferential symmetry pattern.

[0018] 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 the utility model is not limited to the specific implementation 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 applications of the utility model, so that the technicians in the field 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 technicians in the field can make similar improvements without deviating from the connotation of the utility model. Therefore, the utility model is limited by the claims and their entire scope and equivalents, and is not limited by the disclosed specific embodiments.

Claims

1. A ring-shaped fireworks inner tube pyrotechnic powder positioning mechanism, wherein a central cartridge for accommodating bursting powder is provided at the central axis of the inner cavity of the fireworks inner tube, and a fire passage is provided on the side wall of the central cartridge, characterized in that: A number of partitions are distributed on the outer wall of the central cartridge, and the partitions divide the area between the central cartridge and the inner wall of the inner cartridge into a number of filling units for loading effect parts, and the number of filling units are evenly distributed around the outer circumference of the central cartridge; a positioning seat is provided at the upper end or the lower end of the central cartridge to position the central cartridge on the central axis of the inner cartridge, and the positioning seat is nested in the inner cavity of the inner cartridge, and a through hole is provided in the center of the positioning seat for the passage of the fire fuse, and the inner cavity of the inner cartridge below the positioning seat is closed by the lower mud layer.

2. The pyrotechnic powder positioning mechanism for the inner tube of a ring-shaped firework according to claim 1, characterized in that: The fire passages are a plurality of circular holes distributed on the side wall of the central cartridge.

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