Integrated sleeve for preventing firework gunpowder from leaking
By sealing the inside of the fire passage of the fireworks sleeve with a thin film and using high-temperature resistant materials, the problems of gunpowder leakage and safety hazards were solved, thus improving safety and the display effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-10
AI Technical Summary
In traditional fireworks sleeves, gunpowder is prone to leaking out of the holes during storage and transportation, resulting in insufficient gunpowder and safety hazards during ignition. Sealing the holes leads to poor ignition effect and high temperature inside the sleeve.
Design an integrated sleeve with a fire passage on the side wall of the sleeve and an inner membrane sealed with the membrane. The membrane is integrally formed with the sleeve and made of high-temperature resistant plastic material. Limiting parts and radial positioning rods are provided at the bottom and top to improve stability.
It effectively prevents gunpowder leakage, improves the safety and effect of ignition, and enhances processing efficiency and stability.
Smart Images

Figure CN224108725U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the fireworks field especially is related to a prevent fireworks gunpowder from leaking integrated sleeve. BACKGROUND
[0002] Fireworks is the raw material of fireworks, is used to produce entertainment goods of sound and light, and the fireworks is mainly wrapped by the sleeve, and the traditional sleeve is mostly rolled by paper and is used for containing fireworks, and the cylindrical fireworks burns when setting off, and the gunpowder needs to burn outward from the hole on the sleeve wall.
[0003] However, in the storage and transportation process, the gunpowder can overflow outward from the hole, and the gunpowder in the sleeve is insufficient when setting off, and the setting off effect is poor, if the hole on the sleeve wall is closed, the sleeve content is easy to high temperature when setting off, and there is a security risk. INVENTION CONTENTS
[0004] The utility model provides a technical scheme to overcome the above-mentioned situation and solve the above-mentioned problems.
[0005] A kind of prevent fireworks gunpowder from leaking integrated sleeve, including barrel body;
[0006] The barrel body is the cylindrical shell structure that passes through up and down, and a plurality of pass-through channels consisting of holes are formed on the side wall of the barrel body, and a film is arranged on the inner side of the pass-through channel in the barrel body.
[0007] The film and the barrel body are integrally formed.
[0008] As a further scheme of the utility model: the bottom of the barrel body is provided with a base, and a plurality of limiting pieces are arranged on the outer side of the base along the circumferential side wall.
[0009] As a further scheme of the utility model: a plurality of radial positioning rods are arranged on the upper part of the barrel body along the circumferential side wall.
[0010] As a further scheme of the utility model: the barrel body is made of high-temperature-resistant plastic material.
[0011] Compared with the prior art, the utility model has the beneficial effects that: by arranging a film on the inner side of the pass-through channel, the pass-through channel can be closed to prevent the gunpowder from overflowing outward from the pass-through channel, and when in use, the gunpowder can quickly burn through the film, and the gunpowder burns outward through the pass-through channel, improving safety.
[0012] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0014] Fig. 1 It is a structural schematic diagram of the utility model.
[0015] Fig. 2 It is a use state diagram of the utility model.
[0016] As shown in the figure: 1, barrel body; 2, pass through the channel; 3, film; 4, base; 5, limiting piece; 6, radial positioning rod. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments only constitute some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0018] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0019] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0020] In the embodiments of the utility model, unless there are explicit provisions and limitations, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according of specific circumstances.
[0021] Please refer to Figs. 1-2 A kind of integrated sleeve for preventing fireworks powder leakage, including barrel 1;
[0022] Barrel 1 is the cylindrical shell structure that passes through up and down, the side wall of barrel 1 is provided with multiple fire passageways 2 formed by holes, the inside of barrel 1 is provided with film 3 on the inside of fire passageway 2;
[0023] Film 3 and barrel 1 are integrally formed structure.
[0024] By being provided with film 4 on the inside of fire passageway 2, fire passageway 2 can be closed, to avoid powder from fire passageway 2 to overflow outward, when using, powder combustion can quickly burn film 3, powder burns outward through fire passageway 2, improve safety;Film 3 and barrel 1 adopt integrally formed structure, which can effectively improve the processing efficiency of sleeve.
[0025] Further scheme: the bottom of barrel 1 is provided with base 4, and multiple limiting pieces 5 are arranged on the outer side of base 4 along the circumferential side wall.
[0026] It can be convenient to limit and fix barrel 1 in the inside of fireworks shell, improve stability.
[0027] Further scheme: multiple radial positioning rods 6 are arranged on the upper portion of barrel 1 along the circumferential side wall.
[0028] The upper portion of barrel 1 can be limited and fixed, to avoid inclination, improve stability and safety.
[0029] Further scheme: barrel 1 is made of high-temperature-resistant plastic material.
[0030] Including any one of nylon, polyformaldehyde, polyphenylene sulfide;It can take into account strength, temperature resistance, chemical resistance and cost, improve the safety of barrel 1.
[0031] It is also to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components, and the term "an element" can include comparable reference to a plurality of elements. Additionally, the term "or" as used herein means any one member of a logical disjunction (i.e., it is equivalent to "or" and "or else") and not a logical exclusion. Also, the terms "comprise," "comprising," "include," "including," and the like mean "including but not limited to." Furthermore, the description herein uses terms such as first and second to denote different elements, but the applicants do not intend these terms to denote an ordering, because some of these elements can, in fact, precede other ones in some of the implementations.
[0032] The above description of disclosed embodiments provides examples, and is not intended to be limiting. Numerous alternatives that are encompassed by the broadest possible scope of equivalents, will be readily apparent to those of ordinary skill in the art having the benefit of this disclosure. Therefore, the true scope of the present application is not to be limited to the embodiments disclosed herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An integrated sleeve for preventing the egress of pyrotechnic charge, characterized by: The application relates to a fireproofing device. The cylinder body (1) is a through upper and lower cylindrical shell structure, a plurality of fire passing channels (2) formed by holes are arranged on the side wall of the cylinder body (1), and a film (3) is arranged on the inner side of the fire passing channels (2) in the cylinder body (1). The film (3) and the cylinder body (1) are integrally formed.
2. The one-piece sleeve for preventing the egress of fireworks powder according to claim 1, characterized in that: A base (4) is arranged at the bottom of the cylinder body (1), and a plurality of limiting pieces (5) are arranged on the outer side of the base (4) along the circumferential side wall.
3. The one-piece sleeve for preventing the egress of pyrotechnic charge according to claim 1, wherein: A plurality of radial positioning rods (6) are arranged on the upper part of the cylinder body (1) along the circumferential side wall.
4. The one-piece sleeve for preventing the egress of pyrotechnic charge according to claim 1, wherein: The cylinder body (1) is made of high-temperature-resistant plastic material.