Launching cylinder structure of combined fireworks

Abstract

The utility model discloses a combined firework launch canister structure which comprises a canister body and a top cover, a clamping groove is formed in the inner wall of the canister body, the canister body and the top cover are both made of plastic materials, a connecting base is arranged at the bottom of the top cover, a buckle is arranged at the bottom of the connecting base, the buckle is fixedly clamped in the clamping groove in an embedded mode, a sealing groove is formed in the top of the canister body, and a sealing ring is fixedly embedded in the outer side of the bottom of the top cover. According to the utility model, the cylinder body and the top cover are made of plastic materials, so that the condition that the cylinder body and the top cover are deformed after being affected with damp can be avoided, meanwhile, the top cover and the cylinder body can be quickly fixed through the matching of the buckles and the clamping grooves, glue is not needed, and the cylinder body and the top cover are convenient to use. The situation that the sealing effect between a traditional paper tube and a hard paper cover becomes poor due to the fact that glue is affected with damp and loses efficacy is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks manufacturing, in particular to a launching tube structure of combined fireworks. Background Art

[0002] Fireworks have a long history in my country and are deeply loved by people for their colorful appearance. The launch tube of traditional cylindrical fireworks is composed of a single paper tube as the basic launch unit. Firework raw materials are placed in the paper tube during production, and the paper tube is sealed with a cardboard cover. Since the paper tube and the cardboard cover are both paper products, which are easily affected by moisture and deformed after being affected by moisture, the paper tube and the cardboard cover are usually bonded with glue, but the glue will fail after being affected by moisture, resulting in a failure to form a good sealing effect between the paper tube and the cardboard cover, which affects the launch effect of the fireworks and has safety hazards such as oblique flying, horizontal flying, and random explosion during launch. Therefore, a launch tube structure of combined fireworks is proposed. Utility Model Content

[0003] The purpose of the utility model is to solve any one of the problems in the above-mentioned technologies, and thus proposes a launching tube structure of a combined firework, comprising a tube body and a top cover, wherein a slot is provided on the inner wall of the tube body, a connecting seat is provided at the bottom of the top cover, a buckle is provided at the bottom of the connecting seat, and the buckle is embedded and fixed in the slot.

[0004] Furthermore, a sealing groove is provided at the top of the cylinder, and a sealing ring is embedded and fixed on the outer side of the bottom of the top cover.

[0005] Furthermore, the sealing ring corresponds to the position of the sealing groove, and the sealing ring can be embedded and fixed in the sealing groove.

[0006] Furthermore, the outer diameter of the connecting seat is the same as the inner diameter of the cylinder, and the outer diameter of the buckle top is larger than the inner diameter of the cylinder.

[0007] Furthermore, the number of the connecting seats and buckles are both four, which are equidistantly arranged around the bottom of the top cover.

[0008] Furthermore, the outer side wall of the buckle is an arc-shaped structure, the connecting seat is made of elastic material, and the buckle can be bent along the connecting seat.

[0009] Furthermore, the cylinder body and the top cover are both made of plastic.

[0010] Beneficial effect: The utility model makes the cylinder and the top cover of plastic material, which will not be deformed after being exposed to moisture. At the same time, the top cover and the cylinder can be quickly fixed through the cooperation of buckles and slots without the use of glue, effectively avoiding the situation where the sealing effect between the traditional paper tube and the cardboard cover becomes poor due to the failure of glue due to moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a partial cross-sectional view of the utility model;

[0013] Figure 3 It is an exploded view of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the top cover of the utility model;

[0015] Reference numerals: cylinder 1; slot 101; sealing slot 102; top cover 2; connecting seat 3; buckle 4; sealing ring 5. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention.

[0018] The launch tube structure of the combined fireworks according to the embodiment of the utility model is described below with reference to the accompanying drawings. Figures 1 to 3 As shown, the launching tube structure of the combined fireworks includes a tube body 1 and a top cover 2. A slot 101 is provided on the inner wall of the tube body 1, a connecting seat 3 is provided at the bottom of the top cover 2, and a buckle 4 is provided at the bottom of the connecting seat 3. The buckle 4 is embedded and fixed in the slot 101 to realize the fixing of the top cover 2 on the tube body 1.

[0019] Preferably, a sealing groove 102 is provided at the top of the cylinder body 1 , and a sealing ring 5 is embedded and fixed on the outer side of the bottom of the top cover 2 .

[0020] Preferably, the sealing ring 5 corresponds to the position of the sealing groove 102 . When the top cover 2 is installed on the cylinder body 1 , the sealing ring 5 will be embedded and fixed in the sealing groove 102 , thereby improving the sealing performance of the connection between the top cover 2 and the cylinder body 1 .

[0021] Preferably, the outer diameter of the connecting seat 3 is the same as the inner diameter of the cylinder 1 , and the outer diameter of the top of the buckle 4 is larger than the inner diameter of the cylinder 1 .

[0022] Preferably, there are four connecting seats 3 and four buckles 4 equidistantly arranged around the bottom of the top cover 2 , and a multi-petal structure with a gap is formed between the connecting seats 3 and the buckles 4 .

[0023] Preferably, the outer wall of the buckle 4 is an arc-shaped structure, the connecting seat 3 is made of elastic material, and the buckle 4 can be bent along the connecting seat 3.

[0024] Preferably, the cylinder body 1 and the top cover 2 are both made of plastic. By making the cylinder body 1 and the top cover 2 of plastic, they have the advantages of being not easily deformed and not affected by moisture. The raw materials can be plastic waste in life, mixed plastics, such as plastic bottles, plastic packaging bags, which is conducive to the recycling of waste and promotes environmental protection. At the same time, after the fireworks are set off, the cylinder body 1 can be recycled and reused to reduce damage to the environment.

[0025] In a specific embodiment: when the top cover 2 is installed on the cylinder body 1, the buckle 4 at the bottom of the top cover 2 is inserted into the cylinder body 1. During the insertion process, the buckle 4 is squeezed by the inner wall of the cylinder body 1 and shrinks inward. When the top cover 2 is fully inserted, the top of the buckle 4 and the groove 101 on the inner wall of the cylinder body 1 are at the same height. At this time, the buckle 4 is no longer squeezed by the inner wall of the cylinder body 1, and is reset by relying on the elasticity of the connecting seat 3 to achieve the buckle 4 being embedded and fixed in the buckle 101, thereby fixing the top cover 2 on the cylinder body 1 without using glue, effectively avoiding the situation where the sealing effect between the traditional paper tube and the cardboard cover becomes poor due to the failure of the glue due to moisture.

[0026] Working principle: When in use, after the gunpowder inside the cylinder 1 is ignited, high-pressure gas is generated that sprays upward. The high-pressure gas will contact the curved side wall of the buckle 4, generating an inward thrust on the buckle 4. Since the connecting seat 3 is made of elastic material, the buckle 4 will bend along the connecting seat 3. After the buckle 4 is bent, its top will come out of the slot 101 in the cylinder 1. Then the top cover 2 will be pushed away by the high-pressure gas in the cylinder 1 and fall off from the top of the cylinder 1 to achieve normal firing of the fireworks in the cylinder 1. The top cover 2 and the cylinder 1 can be quickly fixed through the cooperation of the buckle 4 and the slot 101 without the use of glue, effectively avoiding the situation where the sealing effect between the traditional paper tube and the cardboard cover becomes poor due to the failure of the glue due to moisture.

Claims

1. A combined firework launch tube structure, comprising a tube body (1) and a top cover (2), wherein the inner wall of the tube body (1) is provided with a slot (101), characterized in that: A connecting seat (3) is provided at the bottom of the top cover (2), a buckle (4) is provided at the bottom of the connecting seat (3), and the buckle (4) is embedded and fixed in the clamping groove (101).

2. The launch tube structure of combined fireworks according to claim 1, characterized in that: A sealing groove (102) is provided on the top of the cylinder (1), and a sealing ring (5) is embedded and fixed on the outer side of the bottom of the top cover (2).

3. The launching tube structure of combined fireworks as claimed in claim 2, characterized in that: The sealing ring (5) corresponds to the position of the sealing groove (102), and the sealing ring (5) can be embedded and fixed in the sealing groove (102).

4. The launching tube structure of combined fireworks according to claim 1, characterized in that: The outer diameter of the connecting seat (3) is the same as the inner diameter of the cylinder (1), and the outer diameter of the top of the buckle (4) is larger than the inner diameter of the cylinder (1).

5. The launching tube structure of combined fireworks according to claim 1, characterized in that: The number of the connecting seats (3) and the buckles (4) are both four, and they are arranged equidistantly around the bottom of the top cover (2).

6. The launching tube structure of combined fireworks as claimed in claim 5, characterized in that: The outer wall of the buckle (4) is an arc-shaped structure, the connecting seat (3) is made of elastic material, and the buckle (4) can be bent along the connecting seat (3).

7. The launching tube structure of combined fireworks according to claim 1, characterized in that: The cylinder (1) and the top cover (2) are both made of plastic.

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