Vertical rotating ground rotating firework

Abstract

The utility model discloses a vertical rotating ground rotating firework which comprises a firework cylinder and an ignition lead, firework powder is filled in the firework cylinder, transverse firework spraying holes are formed in the side face of a cylinder body, and the lower end of the firework cylinder is sleeved with a round head base. Two ports of the firework cylinder are closed, the upper port of the firework cylinder is provided with a vertical firework spraying hole, and the inner port of the vertical firework spraying hole is provided with a temporary plugging layer; the transverse firework spraying holes are not formed in the radial direction of the cylinder body of the firework cylinder. The recoil force of the high-temperature and high-pressure gas jetted from the transverse firework spraying holes at high speed in a non-radial direction can reliably push the firework cylinder with the round-head base to rotate at a high speed in a vertical posture; high-temperature and high-pressure gas ablates and breaks through the temporary plugging layer to be sprayed out from the vertical firework spraying holes, and the firework barrel can achieve the three-dimensional set-off effect of combining transverse firework spraying and vertical firework spraying by combining the rotating firework spraying effect around the transverse firework spraying holes.

Description

Technical Field

[0001] The utility model relates to a vertically rotating ground-rotating firework. Background Art

[0002] The upright posture of the firework tube of the ground rotating fireworks with one end of the tube touching the ground is called the vertical posture; the posture with the side of the tube touching the ground is called the horizontal posture.

[0003] In the prior art, ground rotating fireworks are mainly made by filling a firework tube with pyrotechnics and opening a spray hole on the side of the tube. A fuse is inserted into the spray hole. When ignited, gas is ejected through the spray hole to drive the horizontally lying tube to rotate.

[0004] In the prior art, in order to achieve the combination of horizontal spraying effect and vertical spraying effect, a three-dimensional firing effect of upward spraying combined with surrounding rotating spraying is formed. It is necessary to use a base as a rotating base, and combine several spraying flowers on the base. For example, the "petal-shaped rotating fireworks" disclosed in the Chinese utility model patent document with the publication (announcement) number: CN204007349U; the "ground rotating fireworks device with a flying saucer structure" disclosed in the Chinese utility model patent document with the publication (announcement) number: CN211855072U.

[0005] The disadvantage of the prior art is that it is difficult to realize the rotation of the cylinder in a vertical posture; it is difficult for a spray cylinder to realize the combination of horizontal spraying and vertical spraying. Utility Model Content

[0006] In order to solve the above-mentioned drawbacks, the technical problem to be solved by the utility model is to provide a vertically rotating ground rotating firework, in which a spray tube can realize the combination of horizontal spray and vertical spray. In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is a vertically rotating ground rotating firework, including a firework tube and an ignition fuse, the firework tube is filled with pyrotechnics and a horizontal spray hole is arranged on the side of the tube body, characterized in that a round head base is mounted on the lower end of the firework tube; the two ends of the firework tube are closed, the upper end is provided with a vertical spray hole, and the inner end of the vertical spray hole is provided with a temporary blocking layer; the horizontal spray hole is not opened along the radial direction of the tube body of the firework tube.

[0007] The beneficial effect of the utility model is that the recoil force of the high-temperature and high-pressure gas rapidly ejected in a non-radial manner from the horizontal spray holes can reliably drive the firework tube provided with a round-head base to rotate at high speed in a vertical posture; the high-temperature and high-pressure gas ablates and breaks through the temporary blocking layer to be ejected from the vertical spray holes, and combined with the rotating spray effect around the horizontal spray holes, a firework tube can form a three-dimensional firing effect combining horizontal and vertical sprays.

[0008] In order to facilitate the realization of vertical rotation, in one embodiment, the sealing layer of the lower end of the firework tube is a soil sealing layer or a solid attractant sealing layer.

[0009] The horizontal spray hole is not opened along the radial direction of the cylinder of the firework tube, which means that the angle H between the axis of the horizontal spray hole and the radial direction corresponding to the cylinder of the firework tube is greater than zero. In order to facilitate the realization of vertical rotation, in one embodiment, the angle H between the axis of the horizontal spray hole and the radial direction of the cylinder of the firework tube is in the range of 65 degrees ≤ H ≤ 85 degrees. It is better to be 68 degrees ≤ H ≤ 78 degrees. It is best to be H = 73 ± 3 degrees.

[0010] In order to better realize vertical spraying, in one embodiment, the vertical spraying hole is a tapered hole with a larger top and a smaller bottom. Furthermore, the diameter ratio of the upper port to the lower port of the tapered hole is 3-7:1-3. The height of the tapered hole is 0.5-0.7 cm. The thickness of the temporary blocking layer is 0.1-0.2 cm.

[0011] In one embodiment, a plurality of the ground rotating fireworks are set off in combination. Specifically, the ignition fuses of the plurality of the ground rotating fireworks are connected in series through a fire transmission fuse and set off in combination. Alternatively, a base is provided with a plurality of fixed positions, and the plurality of the ground rotating fireworks are respectively positioned at the fixed positions and set off in combination.

[0012] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time.

[0013] In the description of this specification, the description of reference terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation 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 those generally understood by technicians in the technical field of the utility model. 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 also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a central element at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the appearance structure of Example 1;

[0015] Figure 2 Schematic diagram of the internal structure of Example 1 ( Figure 1 BB longitudinal section shown);

[0016] Figure 3 Schematic diagram of the principle structure of the angle H of Example 1 ( Figure 1 AA cross section shown is enlarged);

[0017] Figure 4 This is a schematic diagram of the appearance structure of Example 2. DETAILED DESCRIPTION

[0018] Example 1: See attached Figure 1-3 , reflecting a specific structure of the utility model. The vertical rotating ground rotating fireworks are filled with pyrotechnics 2 and a horizontal spray hole 3 is set on the side of the cylinder, and the horizontal spray hole 3 is inserted into the ignition fuse 4. The horizontal spray hole 3 is not opened along the radial direction of the cylinder of the fireworks tube 1 - see Figure 3 , the horizontal spray hole 3 has an opening on the inner wall of the cylinder of the firework tube 1, and the line connecting the center of the opening and the center of the cylinder is the corresponding radial direction line 101. The angle H between the axis of the horizontal spray hole 3 and the radial direction line 101 corresponding to the cylinder of the firework tube 1 is greater than zero. In order to facilitate the realization of vertical rotation, in some embodiments, the value range of the angle H is: 65 degrees ≤ H ≤ 85 degrees. Preferably, 68 degrees ≤ H ≤ 78 degrees. The best is H = 73 ± 3 degrees.

[0019] In the example, a round head base 5 is mounted on the lower part of the firework tube 1; the upper and lower ports of the firework tube 1 are closed, a vertical spray hole 7 is centrally provided in the upper port closing layer 6, and a temporary blocking layer 8 is provided at the inner port of the vertical spray hole 7; the temporary blocking layer 8 is preferably a mud layer.

[0020] In order to facilitate the realization of vertical rotation, in one embodiment, the lower end sealing layer 9 of the firework tube 1 is a soil sealing layer or a solid attractant sealing layer. The center of gravity of the entire ground rotating firework is located at the lower part of the firework tube.

[0021] In order to better realize vertical spraying, in the example, the vertical spraying hole 7 is a tapered hole with a larger top and a smaller bottom. The diameter of the upper end of the tapered hole is 0.3 to 0.7 cm, and the diameter of the lower end is 0.1 to 0.3 cm. The height of the tapered hole is 0.5 to 0.7 cm. The thickness of the temporary blocking layer is 0.1 to 0.2 cm.

[0022] By adopting the above scheme, the high-temperature and high-pressure gas generated after the ignition fuse 4 ignites the pyrotechnics 2 is ejected from the horizontal spray hole 3. Since the horizontal spray hole 3 is not a radial hole and one end of the cylinder is a round head base 5, the recoil force of the rapid injection of high-pressure gas can reliably push the firework tube 1 to rotate at a high speed in a vertical posture, and the flame ejected from the horizontal spray hole 3 constitutes a surrounding rotating spray effect; and as the combustion of the pyrotechnics 2 progresses, the high-temperature and high-pressure gas ablates and breaks through the temporary blocking layer 8 to be ejected from the vertical spray hole 7, and the ejected flame constitutes an upward spray effect, which is combined with the above-mentioned surrounding rotating spray effect to constitute a three-dimensional firing effect combining horizontal spray and vertical spray.

[0023] The ground rotating fireworks can be placed on the ground and set off individually or one by one. A plurality of ground rotating fireworks can also be set off in combination. In one embodiment, the ignition fuses 4 of a plurality of ground rotating fireworks are connected in series through a fire transfer fuse, and igniting the fire transfer fuse can transfer fire to ignite the ignition fuses 4 of each ground rotating fireworks, thereby forming a combined setting off effect in which a plurality of ground rotating fireworks are set off simultaneously.

[0024] In one embodiment, it also includes a base with several fixed positions, and several of the ground rotating fireworks are respectively positioned at the fixed positions. After the ground rotating fireworks are ignited one by one through a fire transfer fuse or manually, a combined firing effect of multiple ground rotating fireworks being ignited simultaneously is formed.

[0025] Example 2: See attached Figure 4 , which is different from the first embodiment, is that the sleeve 203 of the round head base 202 mounted on the lower end of the firework tube 201 extends to or near the top of the firework tube 201. The side wall of the sleeve 203 is provided with an opening 205 corresponding to the horizontal spray hole 204. The round head base is more tightly and firmly combined with the firework tube, and can also better protect the firework tube.

[0026] The embodiments of the utility model disclosed above are only used to help illustrate the utility model. The embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and describes these embodiments in detail in conjunction with the accompanying drawings in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can understand and use the utility model well. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is only limited by the claims and their full scope and equivalents, and is not limited by the specific embodiments disclosed.

Claims

1. A vertical rotating ground-mounted firework, comprising a firework tube and an ignition fuse, wherein the firework tube is filled with pyrotechnics and a horizontal spray hole is arranged on the side of the tube, characterized in that: The lower end of the firework tube is provided with a round head base; the two ends of the firework tube are closed, the upper end is provided with a vertical spray hole, and the inner end of the vertical spray hole is provided with a temporary blocking layer; the horizontal spray hole is not opened along the radial direction of the cylinder body of the firework tube.

2. A vertical rotating ground-rotating firework as claimed in claim 1, characterized in that: The value range of the angle H between the axis of the transverse spray hole and the radial direction of the cylinder body of the firework tube is: 65 degrees ≤ H ≤ 85 degrees.

3. A vertical rotating ground-rotating firework as claimed in claim 2, characterized in that: The value range of the angle H is: 68 degrees ≤ H ≤ 78 degrees.

4. A vertical rotating ground-rotating firework as claimed in claim 3, characterized in that: The value range of the angle H is: H=73±3 degrees.

5. The vertical rotating ground-rotating fireworks according to claim 1, characterized in that: The vertical spray hole is a tapered hole that is larger at the top and smaller at the bottom.

6. A vertical rotating ground-rotating firework as claimed in claim 5, characterized in that: The diameter ratio of the upper port to the lower port of the tapered hole is 3-7:1-3.

7. A vertical rotating ground-rotating firework as claimed in claim 6, characterized in that: The height of the tapered hole is 0.5 to 0.7 centimeters.

8. A vertical rotating ground-rotating firework according to any one of claims 1 to 7, characterized in that: The thickness of the temporary blocking layer is 0.1 to 0.2 cm.

9. A vertical rotating ground-rotating firework according to any one of claims 1 to 7, characterized in that: The sealing layer of the lower end of the firework tube is a soil sealing layer or a solid attractant sealing layer.

10. A vertical rotating ground-rotating firework according to any one of claims 1 to 7, characterized in that: The ignition fuses of a plurality of the ground rotating fireworks are connected in series through a fire transfer fuse and are combined and ignited; or a base is provided with a plurality of fixed positions, and a plurality of the ground rotating fireworks are respectively positioned on the fixed positions and are combined and ignited.

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