Fixing cylinder and firework setting-off device convenient to assemble

Abstract

The utility model discloses a fixing cylinder and a firework setting-off device convenient to assemble. The firework setting-off device comprises a cylinder body and a fixing piece used for limiting the firework cylinder. A mounting cavity for mounting the firework cylinder is formed in the cylinder body; the fixing piece is provided with an avoiding hole used for exposing a launching opening of the firework cylinder. Wherein one of the cylinder body and the fixing piece is provided with a connecting groove; a connecting part matched with the connecting groove is arranged on the other end of the fixing part, the fixing part is connected with the cylinder body, and the connecting part is matched in the connecting groove; thus, during assembly, the firework cylinders are arranged in the mounting cavities and limited through the fixing pieces, the firework cylinders of the combined fireworks can be effectively assembled, the shock resistance in the transportation and use process is higher, and particularly, the assembly speed is high, the efficiency is high, and the stability of the firework cylinders is high.

Description

Technical Field

[0001] The utility model relates to the technology of fireworks field, in particular to a fireworks setting device with a fixed tube and convenient assembly. Background Art

[0002] As is known, combination fireworks are usually made by assembling multiple cylindrical paper tubes, aligning them, and then assembling and fixing them. When fixing them, paper boxes or paper racks are generally used for fixing them. They are ground fireworks products that produce effects such as sound, light, color, and floating objects when ignited.

[0003] The prior art discloses an assembly frame for a combined fireworks tube row, comprising a base plate, a support rod, a connecting rod, a fixing rod and a supporting ring, wherein the top of the base plate is respectively provided with four support rods extending upward, the support rods are provided with at least one connecting rod, the connecting rods are provided with fixing rods distributed equidistantly, the fixing rods are provided with fixing rings for fixing paper tubes distributed equidistantly, the fixing rings are provided with fixing devices for preventing the paper tubes from slipping, the top of the base plate is provided with a buffer device for buffering the paper tubes, and the base plate is equipped with a punching device for punching holes in the paper tubes; the tube row of the combined fireworks is effectively assembled, so that the earthquake resistance during transportation and use is stronger, but the assembly frame of the fireworks tube row has the following defects:

[0004] For example, the base plate, support rods, connecting rods, fixed rods and support rings are affected by their own structures, resulting in the assembly frame being heavy, occupying a large space and being expensive; secondly, due to the large space occupied by the assembly frame, it is inconvenient to transport and the cost is also high; especially, there are many parts between the support rods, connecting rods, fixed rods, support rings and the base plate, which makes assembly troublesome, requires a lot of manpower during the assembly process, and is inefficient.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a fireworks setting device with a fixed tube and easy assembly. Through the structural design of the fixed tube, the present invention effectively solves the problems in traditional technology of heavy assembly frames, large space occupation, high cost, inconvenient transportation, large number of parts and troublesome assembly.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A fixing tube includes a tube body and a fixing member for limiting the position of a fireworks tube; the tube body is provided with an installation cavity for installing the fireworks tube; the fixing member is provided with an avoidance hole for exposing the launch port of the fireworks tube;

[0009] Among them, one of the cylinder and the fixing member is provided with a connecting groove; the other is provided with a connecting portion adapted to fit with the connecting groove, the fixing member is connected to the cylinder, and the connecting portion fits into the connecting groove.

[0010] As a preferred solution, the fixing member and the cylinder are both made of paper-plastic material.

[0011] As a preferred solution, the connecting groove is arranged from one end of the fixing member toward the cylinder; and the connecting portion is arranged toward one end of the fixing member.

[0012] As a preferred solution, a guide portion is provided on one side of the connecting groove, and at least a portion of the guide portion is connected to the outside of the connecting groove.

[0013] As a preferred solution, the fixing member includes an upper fixing member and a lower fixing member, and the connecting groove includes an upper connecting groove and a lower connecting groove; the upper fixing member includes an upper outer ring portion and an upper inner ring portion, and an upper connecting groove is formed between the inner side wall of the upper outer ring portion and the outer side wall of the upper inner ring portion; the lower fixing member includes a lower outer ring portion and a lower inner ring portion, and a lower connecting groove is formed between the inner side wall of the lower outer ring portion and the outer side wall of the lower inner ring portion;

[0014] The connecting part includes an upper connecting part and a lower connecting part, and the upper connecting part and the lower connecting part are respectively arranged at the upper and lower ends of the cylinder; the upper fixing part and the lower fixing part respectively cooperate with the upper connecting part and the lower connecting part through the upper connecting groove and the lower connecting groove to form an installation positioning with the cylinder.

[0015] As a preferred solution, the avoidance hole is provided on the upper fixing member; the inner end surface of the upper fixing member is provided with a limiting portion extending toward the installation cavity near the avoidance hole for limiting the outside of the firework tube.

[0016] As a preferred solution, the limiting portion includes a vertical portion and a hook portion, the vertical portion extends from the inner end surface of the upper fixing member toward the installation cavity, and the hook portion is arranged at the lower end of the vertical portion; the side of the hook portion away from the vertical portion is recessed with an arc-shaped portion for the outer wall surface of the fireworks tube to abut against.

[0017] As a preferred solution, the cylinder is installed on the lower fixing piece, and an installation cavity is formed between the inner wall of the cylinder and the inner wall of the lower inner ring; the lower fixing piece is provided with several installation parts for installing and positioning the lower end face of the fireworks tube, and the several installation parts are centrally protruded on the lower fixing piece.

[0018] As a preferred solution, the upper inner ring portion and the lower inner ring portion are both provided with extension portions for improving the installation stability of the cylinder, and the extension portions extend into the installation cavity and abut against the inner wall surface of the cylinder.

[0019] A fireworks setting device which is easy to assemble comprises a plurality of fireworks tubes and a fixing tube. The fixing tube is any one of the fixing tubes described above. The plurality of fireworks tubes are arranged in the fixing tube.

[0020] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it is mainly achieved through the structural design and coordination of the fixing tube. One of the cylinder body and the fixing piece is provided with a connecting groove; the other is provided with a connecting portion for adapting to the connecting groove. The fixing piece is connected to the cylinder body, and the connecting portion is adapted to the connecting groove. In this way, when assembling, the fireworks tube is installed in the installation cavity and limited by the fixing piece, which can effectively assemble the fireworks tube of the combined fireworks, making it more shock-resistant during transportation and use. In particular, the assembly speed is fast, the efficiency is high, and the stability of the fireworks tube is high.

[0021] In addition, the fixing parts and the cylinder are made of paper plastic material, which makes it cheap and takes up little space.

[0022] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of the fixing cylinder of the embodiment of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the fixed cylinder of an embodiment of the present utility model;

[0025] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0026] Figure 4 This is an exploded view of the fixing cylinder of the embodiment of the present utility model;

[0027] Figure 5 This is another exploded view of the fixing cylinder of the embodiment of the present utility model;

[0028] Figure 6 This is another exploded view of the fixing cylinder of the embodiment of the present utility model;

[0029] Figure 7 This is a first perspective view of an embodiment of the present utility model;

[0030] Figure 8 It is a cross-sectional view of an embodiment of the present utility model;

[0031] Figure 9 This is an exploded view of an embodiment of the present utility model;

[0032] Figure 10 This is a third perspective view of an embodiment of the present utility model;

[0033] Figure 11 This is a fourth perspective view of an embodiment of the present utility model;

[0034] Figure 12 This is a fifth perspective view of an embodiment of the present invention.

[0035] Description of the accompanying drawings:

[0036] 10. Cylinder 11. Installation cavity

[0037] 12. Connecting part 13. Extended part

[0038] 121. Upper connecting portion 122. Lower connecting portion

[0039] 20. Fixing 21. Avoidance hole

[0040] 22. Connecting groove 221. Upper connecting groove

[0041] 222, lower connecting groove 23, upper fixing piece

[0042] 24. Lower fixing member 231, upper outer ring

[0043] 232, upper inner ring 233, limit part

[0044] 234, vertical portion 235, hook portion

[0045] 236. Arc

[0046] 241, lower outer ring 242, lower inner ring

[0047] 243, mounting portion 25, guide portion

[0048] 30. Firework tube 40. Fixed tube

[0049] 50. Positioning parts. DETAILED DESCRIPTION

[0050] Please refer to Figures 1 to 12 As shown, it shows the specific structure of an embodiment of the present utility model.

[0051] In the description of the present invention, it should be noted that directional words, such as the terms "up", "down", "front", "back", "left", "right", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the drawings or during normal wear and use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0052] A fixing cylinder includes a cylinder body 10 and a fixing member 20.

[0053] The fixing member 20 is used to limit the position of the firework tube 30; preferably, the fixing member 20 and the tube body 10 are both made of paper plastic material, which makes it low in cost and takes up little space.

[0054] The barrel 10 is provided with an installation cavity 11 for installing the fireworks tube 30; the fixing piece 20 is provided with an avoidance hole 21 for exposing the launch port of the fireworks tube 30; wherein, one of the barrel 10 and the fixing piece 20 is provided with a connecting groove 22; the other is provided with a connecting portion 12 for adapting to the connecting groove 22, the fixing piece 20 is connected to the barrel 10, and the connecting portion 12 is adapted to the connecting groove 22.

[0055] Preferably, the connecting groove 22 is provided from one end of the fixing member 20 toward the cylinder 10; the connecting portion 12 is provided toward one end of the fixing member 20. Preferably, a guide portion 25 is provided on one side of the connecting groove 22, and at least a portion of the guide portion 25 is connected to the outside of the connecting groove 22. The design of the guide portion facilitates the subsequent assembly of the cylinder 10.

[0056] Preferably, the fixing member 20 includes an upper fixing member 23 and a lower fixing member 24, and the connecting groove 22 includes an upper connecting groove 221 and a lower connecting groove 222; the upper fixing member 23 includes an upper outer ring portion 231 and an upper inner ring portion 232, and the upper connecting groove 221 is formed between the inner side wall of the upper outer ring portion 231 and the outer side wall of the upper inner ring portion 232; the lower fixing member 24 includes a lower outer ring portion 241 and a lower inner ring portion 242, and the lower connecting groove 222 is formed between the inner side wall of the lower outer ring portion 241 and the outer side wall of the lower inner ring portion 242;

[0057] The connecting portion 12 includes an upper connecting portion 121 and a lower connecting portion 122, and the upper connecting portion 121 and the lower connecting portion 122 are respectively arranged at the upper and lower ends of the cylinder 10; the upper fixing member 23 and the lower fixing member 24 respectively cooperate with the upper connecting portion 121 and the lower connecting portion 122 through the upper connecting groove 221 and the lower connecting groove 222 to form an installation positioning with the cylinder 10.

[0058] Preferably, the barrel 10 is installed on the lower fixing piece 24, and a mounting cavity 11 is formed between the inner wall of the barrel 10 and the inner wall of the lower inner ring portion 242; the lower fixing piece 24 is provided with a plurality of mounting portions 243 for mounting and positioning the lower end surface of the fireworks tube 30, and the plurality of mounting portions 243 are centrally protruded on the lower fixing piece 24.

[0059] Preferably, both the upper inner ring portion 232 and the lower inner ring portion 242 are provided with an extension portion 13 for improving the installation stability of the cylinder 10. The extension portion 13 extends into the installation cavity 11 and abuts against the inner wall surface of the cylinder 10. The design of the extension portion 13 can increase the contact area between the cylinder 10 and the fixing member 20, thereby increasing the contact friction between the two, and ultimately improving the installation stability of the cylinder 10 on the fixing member 20.

[0060] Preferably, the avoidance hole 21 is provided on the upper fixing member 23 ; and a limiting portion 233 for limiting the outside of the firework tube 30 is provided on the inner end surface of the upper fixing member 23 , close to the avoidance hole 21 and extending toward the installation cavity 11 .

[0061] Preferably, the limiting portion 233 includes a vertical portion 234 and a hook portion 235. The vertical portion 234 extends from the inner end surface of the upper fixing member 23 toward the mounting cavity 11, and the hook portion 235 is disposed at the lower end of the vertical portion 234. A side of the hook portion 235, away from the vertical portion 234, is recessed with an arcuate portion 236 for abutting against the outer wall of the firework tube 30. The design of the limiting portion 233 limits the outer portion of the firework tube 30 and, in conjunction with the upper fixing member 23, provides a double locking and limiting effect on the firework tube 30.

[0062] A fireworks setting device that is easy to assemble includes a plurality of fireworks tubes 30 and a fixed tube 40, wherein the fixed tube 40 is the fixed tube 40 mentioned above. The plurality of fireworks tubes 30 are arranged in the fixed tube 40; wherein;

[0063] like Figures 7 to 12 As shown, the fixing tube 40 is circular, triangular, polygonal, arc-shaped, square, etc. It can be designed into the required shape according to actual needs, which will not be described in detail here.

[0064] Several fireworks tubes 30 are fixed within the mounting cavity 11, with their bottom ends mounted and fixed to the mounting portions 243. The outer walls of the fireworks tubes 30 abut against the curved portion 236, and the upper end surfaces of the fireworks tubes 30 are partially restrained by the upper fixing member 23. The firing ports of the fireworks tubes 30 are exposed outside the avoidance hole 21. In this embodiment, the firing ports of the fireworks tubes 30 are exposed outside the avoidance hole 21, and the lead wire ends of the fireworks tubes 30 are connected and exposed outside the barrel 10. This ensures that the firing ports do not obstruct the end surface of the upper fixing member 23, thereby preventing the fireworks tubes 30 from properly igniting.

[0065] Preferably, a positioning member 50 is further provided between the plurality of firework tubes 30 , and a plurality of assembly positions are arranged at intervals on the positioning member 50 , and parts of the exterior of the plurality of firework tubes 30 are confined within the assembly positions.

[0066] The key design features of the present invention lie in the structural design and coordination of the fixing tube. One of the tube body and the fixing member is provided with a connecting groove; the other is provided with a connecting portion adapted to fit within the connecting groove. The fixing member is connected to the tube body, and the connecting portion fits within the connecting groove. Thus, during assembly, the fireworks tube is installed within the mounting cavity and positioned by the fixing member, effectively assembling the combined fireworks tube. This enhances earthquake resistance during transportation and use, and in particular, provides rapid assembly, high efficiency, and high stability.

[0067] In addition, the fixing parts and the cylinder are made of paper plastic material, which makes it cheap and takes up little space.

[0068] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fixed cylinder, characterized in that: The firework tube comprises a cylinder and a fixing member for limiting the position of the firework tube; the cylinder is provided with an installation cavity for installing the firework tube; the fixing member is provided with an avoidance hole for exposing the launch port of the firework tube; Among them, one of the cylinder and the fixing member is provided with a connecting groove; the other is provided with a connecting portion adapted to fit with the connecting groove, the fixing member is connected to the cylinder, and the connecting portion fits into the connecting groove.

2. The fixing tube according to claim 1, wherein: The fixing piece and the cylinder are both made of paper-plastic material.

3. The fixing tube according to claim 1, wherein: The connecting groove is arranged from one end of the fixing piece toward the cylinder body; and the connecting portion is arranged toward one end of the fixing piece.

4. The fixing tube according to claim 1, wherein: A guide portion is provided on one side of the connecting groove, and at least a portion of the guide portion is connected to the outside of the connecting groove.

5. The fixing tube according to claim 1, wherein: The fixing member includes an upper fixing member and a lower fixing member, and the connecting groove includes an upper connecting groove and a lower connecting groove; the upper fixing member includes an upper outer ring portion and an upper inner ring portion, and an upper connecting groove is formed between the inner side wall of the upper outer ring portion and the outer side wall of the upper inner ring portion; the lower fixing member includes a lower outer ring portion and a lower inner ring portion, and a lower connecting groove is formed between the inner side wall of the lower outer ring portion and the outer side wall of the lower inner ring portion; The connecting part includes an upper connecting part and a lower connecting part, and the upper connecting part and the lower connecting part are respectively arranged at the upper and lower ends of the cylinder; the upper fixing part and the lower fixing part respectively cooperate with the upper connecting part and the lower connecting part through the upper connecting groove and the lower connecting groove to form an installation positioning with the cylinder.

6. The fixing tube according to claim 5, characterized in that: The avoidance hole is provided on the upper fixing piece; the inner end surface of the upper fixing piece is provided with a limiting portion extending toward the installation cavity near the avoidance hole and used to limit the outside of the firework tube.

7. The fixing tube according to claim 6, characterized in that: The limiting portion includes a vertical portion and a hook portion, the vertical portion extends from the inner end surface of the upper fixing piece toward the installation cavity, and the hook portion is arranged at the lower end of the vertical portion; the hook portion is recessed on the side away from the vertical portion for the outer wall surface of the fireworks tube to abut against.

8. The fixing tube according to claim 5, wherein: The cylinder is installed on the lower fixing piece, and an installation cavity is formed between the inner wall of the cylinder and the inner wall of the lower inner ring; the lower fixing piece is provided with several installation parts for installing and positioning the lower end surface of the fireworks tube, and the several installation parts are centrally protruded on the lower fixing piece.

9. The fixing tube according to claim 5, wherein: The upper inner ring portion and the lower inner ring portion are both provided with extension portions for improving the installation stability of the cylinder. The extension portions extend into the installation cavity and abut against the inner wall surface of the cylinder.

10. A fireworks display device that is easy to assemble, characterized by: The invention comprises a plurality of firework tubes and a fixing tube, wherein the fixing tube is the fixing tube according to any one of claims 1 to 9, and the plurality of firework tubes are arranged in the fixing tube.

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