Reciprocating movement structure of fireworks

Abstract

The utility model discloses a back-and-forth movement structure of fireworks, which relates to the technical field of fireworks and comprises a lower-layer driving module and an upper-layer driving module which are connected and fixed through a buckle, the outer part of the lower-layer driving module is connected with a plurality of lower-layer gunpowder barrels, and the outer part of the upper-layer driving module is connected with a plurality of upper-layer gunpowder barrels. And a plurality of middle-layer gunpowder barrels are obliquely distributed and fixed in an inner cavity formed after the lower-layer driving module and the upper-layer driving module are assembled. According to the back-and-forth movement structure of the fireworks, the lower-layer driving module and the upper-layer driving module rotate synchronously through impact force generated when the middle-layer gunpowder barrel is ignited, the gunpowder barrels are driven to swing up and down in a reciprocating mode, and in cooperation with up-and-down reciprocating deflection of first barrel bases in the upper-layer and lower-layer reciprocating swing mechanisms, the aesthetic feeling of firework setting-off can be greatly improved; and more wonderful and unique visual experience is brought to audiences.

Description

Technical Field

[0001] This utility model relates to the field of fireworks technology, specifically to a reciprocating motion structure for fireworks. Background Technology

[0002] Traditional fireworks structures often offer limited visual effects, failing to meet the public's demand for aesthetic appeal and diversity. As people's expectations for the fireworks viewing experience continue to rise, innovating fireworks structures to achieve more unique and dazzling effects has become an urgent problem to solve.

[0003] Most existing fireworks devices can only achieve simple straight-line or rotating sprays, lacking richer dynamic expressions. During the release of fireworks, their trajectory is relatively fixed, making it difficult to create complex and varied visual effects, which greatly reduces the viewing experience and enjoyment of fireworks displays. For example, some common fireworks, after being ignited, simply spray in a preset single direction or pattern, which can easily cause visual fatigue for viewers after a period of time. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a reciprocating motion structure for fireworks, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reciprocating motion structure for fireworks, comprising a lower drive module and an upper drive module fixed by snap-fit ​​connections. The lower drive module is externally connected to several lower-level gunpowder cartridges, and the upper drive module is externally connected to several upper-level gunpowder cartridges. Several middle-level gunpowder cartridges are obliquely distributed and fixed within the internal cavity of the assembled lower and upper drive modules. These lower, upper, and middle-level gunpowder cartridges are connected in series by gunpowder fuses. The impact force generated by igniting the middle-level gunpowder cartridges causes the lower and upper drive modules to rotate synchronously, driving the lower and upper gunpowder cartridges to reciprocate up and down.

[0006] Furthermore, the upper drive module includes an upper box, and an upper reciprocating swing mechanism is rotatably connected inside the upper box. The lower drive module includes a lower box that is fixed to the upper box by a snap-fit ​​connection. The lower box is rotatably connected to the lower reciprocating swing mechanism inside the lower box by a bearing. The upper box and the lower box have the same structure and can rotate synchronously. The upper reciprocating swing mechanism and the lower reciprocating swing mechanism have the same structure.

[0007] Furthermore, the upper reciprocating swing mechanism includes a column rotatably disposed inside the upper box. A guide groove is pre-formed on the outside of the column. A sleeve is rotatably fitted on the outside of the column and at a position corresponding to the guide groove. A slider is rotatably connected inside the sleeve. The end of the slider is set in a crescent shape. The crescent shape is located inside the guide groove, and the slider can slide along the trajectory of the guide groove when the sleeve rotates.

[0008] Furthermore, the sleeve is rotatably connected to several swing arms, the ends of the swing arms are rotatably connected to a first sleeve seat, and the bottom end of the first sleeve seat is rotatably connected to the upper box.

[0009] Furthermore, the bottom end of the lower drive module is fixedly connected to a support rod, the bottom end of the support rod is fixedly connected to a base, and the top end of the upper drive module is connected to a top gunpowder cartridge. The top gunpowder cartridge and the upper gunpowder cartridge are also connected in series by gunpowder fuses.

[0010] Furthermore, both the lower and upper boxes are triangular structures, and after assembly, a pre-drilled hole is opened at each end of the triangle. Several middle-layer gunpowder cartridges are obliquely fixed inside the lower box, and the free ends of the middle-layer gunpowder cartridges extend to the outside of the lower box through the pre-drilled holes and are fixed by barbs connected to the edges of the lower and upper boxes.

[0011] Furthermore, a tripod can be connected to the bottom of the support rod.

[0012] This invention provides a reciprocating motion structure for fireworks. Compared with the prior art, it has the following advantages:

[0013] The reciprocating motion structure of this firework utilizes the impact force generated by the ignition of the middle gunpowder tube to cause the lower and upper drive modules to rotate synchronously, which in turn drives the gunpowder tube to swing up and down. Combined with the up and down swing of the first tube seat in the reciprocating swing mechanism of the upper and lower layers, it can greatly enhance the aesthetics of the fireworks display and bring a more exciting and unique visual experience to the audience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the assembly structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the disassembled structure of the upper and lower driving modules in this utility model;

[0017] Figure 4 This is a schematic diagram showing the disassembled structure of the upper reciprocating swing mechanism in this utility model;

[0018] Figure 5 This is a schematic diagram of the guide groove and slider in this utility model;

[0019] Figure 6 This is a schematic diagram of the assembly structure of the upper and lower driving modules in this utility model.

[0020] Figure 7 This is a schematic diagram of the structure of the present invention as a tripod.

[0021] In the diagram: 1. Base; 2. Support rod; 3. Lower drive module; 31. Lower box; 32. Lower reciprocating swing mechanism; 33. Bearing; 4. Upper drive module; 41. Upper box; 42. Upper reciprocating swing mechanism; 421. Column; 422. Guide groove; 423. Sleeve; 424. Slider; 425. Swing arm; 426. First cylinder seat; 427. Second cylinder seat; 5. Lower gunpowder cartridge; 6. Upper gunpowder cartridge; 7. Middle gunpowder cartridge; 8. Top gunpowder cartridge; 9. Reserved hole; 10. Barb; 11. Tripod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a technical solution: a reciprocating motion structure for fireworks, including a lower drive module 3 and an upper drive module 4 fixed by snap-fit ​​connection. The lower drive module 3 is externally connected to several lower gunpowder tubes 5, and the upper drive module 4 is externally connected to several upper gunpowder tubes 6. In the internal cavity of the lower drive module 3 and the upper drive module 4 after assembly, several middle gunpowder tubes 7 are obliquely distributed and fixed. The lower gunpowder tubes 5, upper gunpowder tubes 6 and middle gunpowder tubes 7 are connected in series by gunpowder fuses. Relying on the impact force generated by the ignition of the middle gunpowder tubes 7, the lower drive module 3 and the upper drive module 4 can rotate synchronously and drive the lower gunpowder tubes 5 and upper gunpowder tubes 6 to swing up and down reciprocally.

[0024] The upper drive module 4 includes an upper box 41, and the upper reciprocating swing mechanism 42 is rotatably connected inside the upper box 41. The lower drive module 3 includes a lower box 31 that is fixed to the upper box 41 by a snap-fit ​​connection. The lower box 31 is rotatably connected to the lower reciprocating swing mechanism 32 through a bearing 33. The upper box 41 and the lower box 31 have the same structure and can rotate synchronously. The upper reciprocating swing mechanism 42 and the lower reciprocating swing mechanism 32 have the same structure.

[0025] The upper reciprocating swing mechanism 42 includes a column 421 rotatably disposed inside the upper box 41. A guide groove 422 is pre-formed on the outside of the column 421. A sleeve 423 is rotatably sleeved on the outside of the column 421 and at a position corresponding to the guide groove 422. A slider 424 is rotatably connected inside the sleeve 423. The end of the slider 424 is crescent-shaped and located inside the guide groove 422. When the sleeve 423 rotates, it can slide along the trajectory of the guide groove 422. Several swing arms 425 are rotatably connected to the outside of the sleeve 423. The ends of the swing arms 425 are rotatably connected to a first cylinder seat 426. The bottom end of the first cylinder seat 426 is rotatably connected to the upper box 41.

[0026] The bottom end of the lower drive module 3 is fixedly connected to the support rod 2, and the bottom end of the support rod 2 is fixedly connected to the base 1. The top end of the upper drive module 4 is connected to the top gunpowder cartridge 8. The top gunpowder cartridge 8 and the upper gunpowder cartridge 6 are also connected in series by gunpowder fuses. The lower box 31 and the upper box 41 are both triangular structures. After assembly, a reserved hole 9 is opened at each end of the triangle. Several middle gunpowder cartridges 7 are inclinedly fixed inside the lower box 31, and the free end of the middle gunpowder cartridge 7 extends to the outside of the lower box 31 through the reserved hole 9 and is locked by the barbs 10 connected to the edges of the lower box 31 and the upper box 41.

[0027] During the ignition process, the fuse of the firework extends from the through holes reserved in the upper box 41 and the lower box 31. The fuse is first connected in series with several middle-layer gunpowder tubes 7, then connected in series with several lower-layer gunpowder tubes 5 and upper-layer gunpowder tubes 6 respectively, and finally connected in series with the top gunpowder tube 8. In other words, when the fuse is lit, several middle-layer gunpowder tubes 7 are lit first. Since the firework spray end of each middle-layer gunpowder tube 7 extends outward at a fixed angle, the impact force generated when several middle-layer gunpowder tubes 7 are lit at the same time will cause the lower box 31 and the upper box 41 to rotate synchronously.

[0028] The principle of the lower drive module 3 is the same as that of the upper drive module 4. Taking the upper drive module 4 as an example, when the upper box 41 rotates, it will drive the sleeve 423, slider 424, swing arm 425, and first tube seat 426 to rotate synchronously. When the sleeve 423 drives the slider 424 to rotate, the slider 424 will move up and down along the trajectory of the guide groove 422. That is, the sleeve 423 will move up and down. Assuming that the sleeve 423 moves up, it will pull the first tube seat 426 upward through the swing arm 425. During the deflection process, the rotation center is the first tube seat 426 and the rotating part of the upper box 41. In this way, when the upper gunpowder tube 6 is ignited and the fireworks are sprayed out, it will also follow the first tube seat 426 to swing up and down. Similarly, in conjunction with the up and down swing of the first tube seat 426 in the lower reciprocating swing mechanism 32, the aesthetics of the fireworks display can be greatly improved.

[0029] Additionally, please see Figure 7 Alternatively, the cross-shaped base 1 can be replaced with a tripod 11, which will greatly improve the stability during the release of fireworks.

Claims

1. A back-and-forth movement structure of a firework, characterized by comprising: The application relates to a driving module, which comprises a lower driving module (3) and an upper driving module (4) fixed through snap connection, a plurality of lower firecracker tubes (5) are connected to the outside of the lower driving module (3), a plurality of upper firecracker tubes (6) are connected to the outside of the upper driving module (4), a plurality of middle firecracker tubes (7) are fixed in the internal cavity of the assembled lower driving module (3) and upper driving module (4) and are distributed in an inclined mode, the lower firecracker tubes (5), the upper firecracker tubes (6) and the middle firecracker tubes (7) are connected in series through firecracker leading wires, the lower driving module (3) and the upper driving module (4) are synchronously rotated by the impact force generated by the ignition of the middle firecracker tubes (7), and the plurality of lower firecracker tubes (5) and the plurality of upper firecracker tubes (6) are reciprocatingly swung up and down.

2. The back-and-forth movement structure of fireworks according to claim 1, wherein, The upper driving module (4) comprises an upper box (41), the upper box (41) is rotationally connected with an upper reciprocating swinging mechanism (42) in the inside, the lower driving module (3) comprises a lower box (31) fixed with the upper box (41) through snap connection, the lower box (31) is rotationally connected with a lower reciprocating swinging mechanism (32) in the inside through a bearing (33), the upper box (41) and the lower box (31) have the same structure and can be synchronously rotated, and the upper reciprocating swinging mechanism (42) and the lower reciprocating swinging mechanism (32) have the same structure.

3. The back-and-forth movement structure of the firework according to claim 2, wherein, The upper reciprocating swinging mechanism (42) comprises a stand (421) rotationally arranged in the inside of the upper box (41), a guide groove (422) is reserved and formed in the outside of the stand (421), a sleeve (423) is rotationally arranged on the outside of the stand (421) and corresponds to the position of the guide groove (422), the inside of the sleeve (423) is rotationally connected with a sliding block (424), the end of the sliding block (424) is arranged in a crescent shape, the crescent shape is located in the inside of the guide groove (422), and the sliding block (424) can slide along the track of the guide groove (422) when the sleeve (423) rotates.

4. The back-and-forth movement structure of the firework according to claim 3, wherein, The outside of the sleeve (423) is rotationally connected with a plurality of swinging arms (425), the end of the swinging arm (425) is rotationally connected with a first cylinder seat (426), and the bottom end of the first cylinder seat (426) is rotationally connected with the upper box (41).

5. The back-and-forth movement structure of fireworks according to claim 1, wherein, The bottom end of the lower driving module (3) is fixedly connected with a supporting rod (2), the bottom end of the supporting rod (2) is fixedly connected with a base (1), the top end of the upper driving module (4) is connected with a top firecracker tube (8), and the top firecracker tube (8) is connected in series with the upper firecracker tubes (6) through firecracker leading wires.

6. The back-and-forth movement structure of fireworks according to claim 2, wherein, The lower box (31) and the upper box (41) are triangular structures, and a reserved hole (9) is reserved and formed in each end of the triangular structure after assembly, the plurality of middle firecracker tubes (7) are fixed in the inside of the lower box (31) in an inclined mode, the free end of the middle firecracker tube (7) extends to the outside of the lower box (31) through the reserved hole (9), and is fixed through the clamping of a barb (10) connected to the edges of the lower box (31) and the upper box (41).

7. The back-and-forth movement structure of the firework according to claim 5, wherein, The bottom of the support pole (2) can also be connected to a tripod (11).

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