CN109595993B - Electronic firework spraying control device and electronic firework spraying system - Google Patents
Electronic firework spraying control device and electronic firework spraying system Download PDFInfo
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- CN109595993B CN109595993B CN201910100027.0A CN201910100027A CN109595993B CN 109595993 B CN109595993 B CN 109595993B CN 201910100027 A CN201910100027 A CN 201910100027A CN 109595993 B CN109595993 B CN 109595993B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
- F42B4/18—Simulations, e.g. pine cone, house that is destroyed, warship, volcano
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Abstract
An electronic firework spraying control device and an electronic firework spraying system comprise a first liquid storage tank, wherein a first opening is formed in the top of the first liquid storage tank; the pressurizing mechanism is used for inflating the first liquid storage tank; the first spraying mechanism comprises a first spraying pipe and a first spraying head cover, and the first spraying pipe and the first spraying head cover form a first spraying path; the starting mechanism comprises a starting motor and a first one-way valve arranged on the first injection path, and the starting motor is used for opening the first one-way valve to enable the feed liquid in the first liquid storage tank to be sprayed out through the first injection path; the first light-emitting mechanism comprises an LED lamp, the LED lamp is driven to emit light, and the liquid in the first spraying path is irradiated to conduct light guiding of light rays. The device and the system of the application can spray safe and harmless feed liquid, realize the safe and flameless liquid firework spraying effect, not only avoid hidden dangers such as fire caused by the use of open fire of the existing firework, but also avoid potential safety hazards such as explosion caused during transportation.
Description
Technical Field
The application relates to simulated fireworks, in particular to an electronic firework spraying control device and an electronic firework spraying system.
Background
The firework with fire is used for celebrating holidays, is a traditional custom for thousands of years in China, and is also loved by a plurality of people around the world.
At present, two kinds of fireworks exist in the market, one is the fireworks of traditional gunpowder agent, also called fireworks, and the fireworks are sprayed with various colors after being ignited, the ignition point is between 800 and 1200 ℃, and the present invention has the advantage of good visual effect of flame combustion. The disadvantage is that the set-off environment requires a fireproof environment, otherwise fire is easy, and a large amount of dense smoke is emitted after combustion, which has serious pollution to the environment and is easy to cause harm to human body due to high temperature of combustion. Meanwhile, the manufacturing, production and transportation processes are easy to generate danger. The other is cold fireworks which are processed by metal powder with lower ignition point, the ignition point is 60-80 ℃, the cold fireworks have the advantages of low ignition point temperature and poor visual effect, meanwhile, the cold fireworks still need to be ignited by fire, and the ignition environment still requires fireproof environment. In addition, if the cold fireworks are burnt in the setting-off process, the burning temperature can reach 600 ℃ and the environmental safety and the personal safety can be dangerously damaged. The environment of the cold fireworks needs to be careful to avoid chemical reactions of other gases in the air, and even explosion risks are caused when the chemical reactions are serious, for example, if entertainment products such as colored foam spray are used in the environment of igniting the cold fireworks, the chemical reactions and even the explosion are easy to occur.
Disclosure of Invention
The application provides an electronic firework spraying control device and an electronic firework spraying system.
According to a first aspect of the present application, the present application provides an electronic firework injection control device, comprising:
the liquid storage device comprises a first liquid storage tank, a second liquid storage tank and a liquid storage tank, wherein the liquid storage tank is used for containing liquid, the liquid comprises water, and a first opening is formed in the top of the first liquid storage tank;
the pressurizing mechanism comprises an inflator pump and is used for inflating the first liquid storage tank;
the first spraying mechanism comprises a first spraying pipe and a first spraying head cover, the first spraying head cover is arranged on the first opening, one end of the first spraying pipe is connected with the bottom of the first liquid storage tank, the other end of the first spraying pipe is connected with the first spraying head cover, and the first spraying pipe and the first spraying head cover form a first spraying path;
the starting mechanism comprises a first one-way valve, a starting motor and a starting control circuit, the first one-way valve is arranged on the first injection path, the starting control circuit is used for being electrically connected with the starting motor, and the starting motor is used for opening the first one-way valve to enable feed liquid in the first liquid storage tank to be sprayed out through the first injection path;
the first light-emitting mechanism comprises an LED lamp, and the starting control circuit is further used for driving the LED lamp to emit light and irradiating the feed liquid in the first injection path to conduct light guiding of light rays.
According to a second aspect of the present application, the present application provides an electronic firework spraying system, including the above-mentioned electronic firework spraying control device, gas circuit connecting pipe and a plurality of electronic firework spraying device, the gas circuit connecting pipe is connected respectively electronic firework spraying control device with electronic firework spraying device, electronic firework spraying device includes:
the second liquid storage tank is used for containing liquid, the liquid comprises water, and a second opening is formed in the top of the second liquid storage tank;
the inflator pump is also used for inflating the second liquid storage tank through the gas circuit connecting pipeline;
the second spraying mechanism comprises a second spraying pipe and a second spraying head cover, the second spraying head cover is arranged on the second opening, one end of the second spraying pipe is connected with the bottom of the second liquid storage tank, the other end of the second spraying pipe is connected with the second spraying head cover, and the second spraying pipe and the second spraying head cover form a second spraying path;
the starting mechanism further comprises a second one-way valve, the second one-way valve is arranged on the second injection path, and the second one-way valve is opened through the pressure difference of the liquid storage tank at the upper stage, so that the liquid in the second liquid storage tank is injected through the second injection path;
the second light-emitting mechanism comprises a second LED lamp, and the starting control circuit is further used for driving the second LED lamp to emit light and irradiating the material body in the second spraying path to conduct light guiding of light rays.
Due to the adoption of the technical scheme, the beneficial effects of the application are that:
the embodiment of the application comprises a first liquid storage tank, wherein a first opening is formed in the top of the first liquid storage tank; the pressurizing mechanism is used for inflating the first liquid storage tank; a first spray mechanism comprising a first spray tube and a first spray head cover, the first spray tube and the first spray head cover forming a first spray path; the starting mechanism comprises a starting motor and a first one-way valve arranged on the first injection path, and the starting motor is used for opening the first one-way valve to enable the feed liquid in the first liquid storage tank to be sprayed out through the first injection path; the first light-emitting mechanism comprises an LED lamp, the LED lamp is driven to emit light, and the liquid in the first spraying path is irradiated to conduct light guiding of light rays. The device and the system of the application can spray safe and harmless feed liquid, realize the safe and flameless liquid firework spraying effect, not only avoid hidden dangers such as fire caused by the use of open fire of the existing firework, but also avoid potential safety hazards such as explosion caused during transportation.
According to the embodiment of the application, the safe and fireless liquid color firework spraying effect is formed by adjusting materials with diffuse reflection or light absorption characteristics for light, such as plant starch mixed in the feed liquid.
The device and the system of this application embodiment can used repeatedly, and when the pressure of jar body reduced to being close atmospheric pressure, the pressure differential of the jar body of next level produced again drives the jar body of next level and sprays, can produce continuous automatic injection effect, need not high temperature combustion, does not produce open flame, safe environmental protection.
Drawings
FIG. 1 is a schematic diagram of the structure of an electronic firework emission control device according to the present application in one embodiment;
FIG. 2 is a schematic structural view of an electronic firework spraying device according to the present application in one embodiment;
FIG. 3 is a front view of an electronic firework injection system of the present application in one embodiment;
FIG. 4 is a top view of an electronic firework injection system of the present application in one embodiment;
fig. 5 is an enlarged schematic view of the portion a in fig. 4.
Detailed Description
The invention will be described in further detail below with reference to the drawings by means of specific embodiments. This application may be embodied in many different forms and is not limited to the implementations described in this example. The following detailed description is provided to facilitate a more thorough understanding of the present disclosure, in which words of upper, lower, left, right, etc., indicating orientations are used solely for the illustrated structure in the corresponding figures.
However, one skilled in the relevant art will recognize that the detailed description of one or more of the specific details may be omitted, or that other methods, components, or materials may be used. In some instances, some embodiments are not described or described in detail.
The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning.
Furthermore, the features and aspects described herein may be combined in any suitable manner in one or more embodiments. It will be readily understood by those skilled in the art that the steps or order of operation of the methods associated with the embodiments provided herein may also be varied. Thus, any order in the figures and examples is for illustrative purposes only and does not imply that a certain order is required unless explicitly stated that a certain order is required.
Embodiment one:
as shown in fig. 1, an electronic firework emission control apparatus 100 of the present application includes:
the first liquid storage tank 110 is used for containing liquid, the liquid comprises water, and a first opening is formed in the top of the first liquid storage tank 110.
The pressurizing mechanism includes an inflator 121 for inflating the first reservoir 110.
The first spraying mechanism comprises a first spraying pipe 131 and a first spraying head cover 132, the first spraying head 132 is arranged on the first opening, one end of the first spraying pipe 131 is connected with the bottom of the first liquid storage tank 110, the first spraying mechanism can be particularly arranged near the bottom of the first liquid storage tank 110, the other end of the first spraying pipe 131 is connected with the first spraying head cover 132, and the first spraying pipe 131 and the first spraying head cover 132 form a first spraying path.
The starting mechanism comprises a first one-way valve 141, a starting motor 142 and a starting control circuit 143, wherein the first one-way valve 141 is arranged on the first injection path, the starting control circuit 143 is electrically connected with the starting motor 142, and the starting motor 142 is used for opening the first one-way valve 141 to enable the feed liquid in the first liquid storage tank 110 to be injected through the first injection path.
The first light emitting mechanism comprises an LED lamp 151, and the start control circuit 143 is further used for driving the LED lamp 151 to emit light, and irradiating the feed liquid in the first injection path to conduct light guiding. In one embodiment, the feed solution may also include vegetable starch and/or an organic fluorescent pigment. The LED lamp 151 may include a single-color or full-color LED lamp.
In one embodiment, the electronic firework injection control apparatus 100 of the present application may further include a first liquid level switch mechanism disposed within the first liquid reservoir 110, the first liquid level switch mechanism being electrically connected to the activation control circuit 143.
The first check valve 141 includes an inner cavity, a seal spring 1411 and a bead spring 1412, the seal spring 1411 and the bead spring 1412 are disposed in the inner cavity, a limiting step 1413 is disposed in the inner cavity, when the first check valve 141 is opened, the seal spring 1411 is compressed, the bead spring 1412 moves down and ejects the bead, and the limiting step 1413 clamps the bead spring 1412.
After the first check valve 141 is opened, the upper end is propped against, and only the downward movement is possible, when the downward movement is possible, the beads of the bead spring 1412 are sprung out by the spring to clamp the limiting step 1413, the first check valve 141 is opened, the bead spring 1412 does not spring back, the injection pipe is communicated, and the injection of the feed liquid can be performed.
The start control circuit 143 of this application controls starter motor 142 or mechanical telescopic link, and starter control circuit 143 can be through delay circuit or mechanical clockwork delay mode or bluetooth or the cell-phone APP of cell-phone carry out the remote control, starts fireworks, and after the start, start haulage rope 144 or telescopic link by pulling, drives first check valve 141, opens first check valve 141, realizes starting. The injection mechanism is a first injection path formed by the liquid injection output pipe 145 passing through the first check valve 141, the first injection pipe 131 and the first nozzle cover 132, and after the first check valve 141 is opened by the starting circuit, the liquid is injected by the air pressure in the tank body through the liquid injection output pipe 145 and is pressed into the injection path. The first light emitting mechanism comprises an LED lamp 151, the LED lamp 151 can be a color light lamp, the starting control circuit 143 is further used for driving the LED lamp to conduct light guiding on liquid in the spraying path, diffuse reflection when the liquid is mixed with a plant starch type diffuse reflection material and diffuse reflection when the liquid is mixed with an organic fluorescent powder type light absorption and light emitting material, and therefore the effect of spraying the liquid with color light is achieved. The first liquid level switch mechanism comprises a float mechanism and a micro switch 164, the float mechanism comprises a float limiting pipe 161, a float rod 162 and a float 163, when liquid is not sprayed or before the liquid is not sprayed, the position of the float 163 is a high position, the micro switch 164 on the float mechanism is normally open, when the liquid is sprayed, the float 163 descends along with the height of the liquid, the float rod 162 drives the micro switch 164, the micro switch 164 is disconnected, and the circuit of the integral firework after the spraying is completed is closed.
Embodiment two:
as shown in fig. 1 to 5, an implementation manner of the electronic firework spraying system of the present application includes an electronic firework spraying control device 100, a gas path connection pipeline and a plurality of electronic firework spraying devices 200, where the electronic firework spraying control device 100 is disclosed in embodiment one, and is not described in detail in this embodiment. The gas circuit connecting pipeline is connected with the electronic firework spraying control device and the electronic firework spraying device respectively, and the electronic firework spraying device comprises:
a second liquid storage tank 210 for containing a liquid, wherein the liquid comprises water, and a second opening is arranged at the top of the second liquid storage tank 210;
the inflator 121 is further configured to inflate the second liquid storage tank 210 through the air path connection pipe;
the second spraying mechanism comprises a second spraying pipe 231 and a second spraying head cover 232, the second spraying head cover 232 is arranged on the second opening, one end of the second spraying pipe 231 is connected with the bottom of the second liquid storage tank 210, the other end of the second spraying pipe 231 is connected with the second spraying head cover 232, and the second spraying pipe 231 and the second spraying head cover 232 form a second spraying path;
the starting mechanism further comprises a second one-way valve 241, the second one-way valve 241 is arranged on the second injection path, and the second one-way valve 241 is opened by the pressure difference of the liquid storage tank at the previous stage, so that the liquid in the second liquid storage tank 210 is sprayed out through the second injection path;
the second light emitting mechanism includes a second LED lamp 251, and the start control circuit 143 is further configured to drive the second LED lamp 251 to emit light, and irradiate the feed liquid in the second injection path to perform light guiding.
The gas path connection pipe includes a plurality of first tee joints 310 and a plurality of second tee joints 320, and the number of the first tee joints 310 and the second tee joints 320 can be determined according to the number of the electronic firework spraying devices 200. The first tee 310 comprises a first main pipeline 311 and a first branch pipeline 312, the second tee 320 comprises a second main pipeline 321 and a second branch pipeline 322, the first main pipelines 311 are connected end to end, the second main pipeline 321 is respectively connected with two adjacent electronic firework spraying devices 200, the first branch pipeline 312 is connected with the second branch pipeline 322, and the second branch pipeline 322 is provided with a switching device 330. Because in the electronic firework spraying system of the present application, the electronic firework spraying control device 100 and the electronic firework spraying devices 200 may be placed according to needs, for example, the distance between the two first main pipes 311 is too long, and the two first main pipes 311 may also be connected through a connecting pipe. Similarly, if the distance between the two second main pipes 321 is too long, the two first main pipes 321 may be connected by a connection pipe. The switch device 330 may be any of a variety of switches, and in this embodiment, the switch device 330 is a bead spring.
In one embodiment, the electronic firework spraying device 200 of the present application may further include a second liquid level switch mechanism disposed within the second liquid reservoir 210, the first liquid level switch mechanism being electrically connected to the activation control circuit 143.
The second liquid level switch mechanism may include a float mechanism and a micro switch 264, the float mechanism includes a float limit pipe 261, a float rod 262 and a float 263, when the liquid is not injected or before the liquid is not injected, the position of the float 263 is at a high position, the micro switch 264 on the float mechanism is normally open, when the liquid is injected, the float 263 descends along with the height of the liquid, the float rod 262 drives the micro switch 264, and the micro switch 264 is disconnected.
The second check valve 241 includes an inner cavity and a bead spring 2411, the bead spring 2411 being disposed within the inner cavity.
According to the electronic firework spraying system, the electronic firework spraying control device 100 and the electronic firework spraying devices 200 can be placed at different positions according to different appearance shape requirements or spraying shape requirements to be combined, linkage products for linkage control of valve switches are carried out through air pressure differences between different spaces, and a fireless firework system of the combined linkage spraying device of a mutual linkage spraying mode is completed. The electronic firework spraying control device 100 in the electronic firework spraying system is used for starting the electronic firework spraying system.
The inflator includes an electric inflator or a manual inflator for inflating the first and second tanks 110, 210, such as a balloon or a tire of a bicycle, with low pressure of air pressure, which is safe and reliable. And the firework is started on the main tank body through the pressure difference of the upper tank body.
The second check valve 241 of the electronic firework spraying device 200 is provided with an independent sealing space, the sealing space is connected to the upper-stage tank body through a pipeline, when the air pressure is reduced to be close to the atmospheric pressure after the liquid in the upper-stage tank body is sprayed, the second check valve 241 of the sealing space is automatically pushed due to the pressure difference between the tank body and the upper-stage tank body, the second check valve 241 is opened, meanwhile, the switch of the second check valve 241 is automatically conducted, a colorful light source is lightened, the spraying process and the color rendering process of the liquid are completed, and the spraying effect of the colorful firework is realized. When the liquid is sprayed, the float descends along with the height of the liquid, the float rod drives the switch to turn off the switch, the tank body is not sprayed any more, and when the pressure of the tank body is reduced to be close to the atmospheric pressure, the tank body of the next stage is driven to spray by the pressure difference generated by the pressure of the tank body of the next stage. Thus, a continuous automatic interlocking injection effect is achieved.
The holographic mode created in the optical transmission process designed through the visual sense of human eyes does not have any fire source in the setting-off process, and the setting-off effect of fireworks can be shown. The environment is protected to the greatest extent, the air pollution is reduced, the personal safety of consumers and the safety of the setting-off environment are protected, the replacement requirement of the firework market is filled, and the market blank of the environment for prohibiting setting-off of the firework is filled. The electronic firework is a high-simulation firework, and can be visually seen by consumers, meanwhile, the used spray is only safe liquid, such as water, for example, water added with plant starch and organic fluorescent powder, and the like, so that the electronic firework is completely safe and environment-friendly, and meanwhile, the device and the system can be repeatedly used, and the requirement of safe and fireless firework is met. The liquid color firework spraying device adopts the pneumatic pushing structure, the photoelectric structure and the mechanical structure, liquid is sprayed, and meanwhile, materials with diffuse reflection or light absorption characteristics on optics are mixed by adjusting plant starch and the like in the liquid, so that the safe and flameless liquid color firework spraying effect can be achieved from the aspects of system structure and optics, and safe spraying is carried out.
The foregoing is a further detailed description of the present application in connection with the specific embodiments, and it is not intended that the practice of the present application be limited to such descriptions. It will be apparent to those skilled in the art to which the present application pertains that several simple deductions or substitutions may be made without departing from the spirit of the present application.
Claims (9)
1. An electronic firework spraying system is characterized by comprising an electronic firework spraying control device, a gas path connecting pipeline and a plurality of electronic firework spraying devices, wherein the gas path connecting pipeline is respectively connected with the electronic firework spraying control device and the electronic firework spraying devices,
the electronic firework injection control device comprises:
the liquid storage device comprises a first liquid storage tank, a second liquid storage tank and a liquid storage tank, wherein the liquid storage tank is used for containing liquid, the liquid comprises water, and a first opening is formed in the top of the first liquid storage tank;
the pressurizing mechanism comprises an inflator pump and is used for inflating the first liquid storage tank;
the first spraying mechanism comprises a first spraying pipe and a first spraying head cover, the first spraying head cover is arranged on the first opening, one end of the first spraying pipe is connected with the bottom of the first liquid storage tank, the other end of the first spraying pipe is connected with the first spraying head cover, and the first spraying pipe and the first spraying head cover form a first spraying path;
the starting mechanism comprises a first one-way valve, a starting motor and a starting control circuit, the first one-way valve is arranged on the first injection path, the starting control circuit is used for being electrically connected with the starting motor, and the starting motor is used for opening the first one-way valve to enable feed liquid in the first liquid storage tank to be sprayed out through the first injection path;
the first light-emitting mechanism comprises an LED lamp, and the starting control circuit is also used for driving the LED lamp to emit light and irradiating the feed liquid in the first injection path to conduct light guide of light rays;
the electronic firework spraying device comprises:
the second liquid storage tank is used for containing liquid, the liquid comprises water, and a second opening is formed in the top of the second liquid storage tank;
the inflator pump is also used for inflating the second liquid storage tank through the gas circuit connecting pipeline;
the second spraying mechanism comprises a second spraying pipe and a second spraying head cover, the second spraying head cover is arranged on the second opening, one end of the second spraying pipe is connected with the bottom of the second liquid storage tank, the other end of the second spraying pipe is connected with the second spraying head cover, and the second spraying pipe and the second spraying head cover form a second spraying path;
the starting mechanism further comprises a second one-way valve, the second one-way valve is arranged on the second injection path, and the second one-way valve is opened through the pressure difference of the liquid storage tank at the upper stage, so that the liquid in the second liquid storage tank is injected through the second injection path;
the second light-emitting mechanism comprises a second LED lamp, and the starting control circuit is further used for driving the second LED lamp to emit light and irradiating the material body in the second spraying path to conduct light guiding of light rays.
2. The electronic firework spraying system of claim 1 wherein the gas path connecting pipeline comprises a plurality of first tee joints and a plurality of second tee joints, wherein the first tee joints comprise a first main pipeline and a first branch pipeline, the second tee joints comprise a second main pipeline and a second branch pipeline, the plurality of first main pipelines are connected end to end, the second main pipeline is respectively connected with two adjacent electronic firework spraying devices, the first branch pipeline is connected with the second branch pipeline, and the second branch pipeline is provided with a switching device.
3. An electronic firework spraying system as claimed in claim 2, wherein the switch means comprises a second bead spring.
4. The electronic firework spraying system of claim 1, further comprising a second liquid level switch mechanism disposed within the second liquid reservoir, the second liquid level switch mechanism being electrically connected to the activation control circuit, the second liquid level switch mechanism for opening a second one-way valve.
5. The electronic firework spraying system of claim 1 wherein the second one-way valve comprises an interior cavity and a bead spring disposed within the interior cavity.
6. The electronic firework spraying system of claim 1, further comprising a first liquid level switch mechanism disposed within the first liquid reservoir, the first liquid level switch mechanism being electrically connected to the activation control circuit, the first liquid level switch mechanism for opening a first one-way valve.
7. The electronic firework spraying system of claim 1, wherein the feed liquid in the first and/or second liquid tanks further comprises plant starch and/or organic fluorescent pigment.
8. The electronic firework spraying system of claim 1 wherein the LED lamp comprises a single color or full color LED lamp.
9. The electronic firework spraying system of claim 1 wherein the first one-way valve comprises an inner cavity, a sealing spring and a bead spring, the sealing spring and the bead spring being disposed within the inner cavity, the inner cavity being provided with a limiting step, the sealing spring being compressed when the first one-way valve is opened, the bead spring moving downward and ejecting a bead, the limiting step capturing the bead spring.
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| CN201910100027.0A CN109595993B (en) | 2019-01-31 | 2019-01-31 | Electronic firework spraying control device and electronic firework spraying system |
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| CN201910100027.0A CN109595993B (en) | 2019-01-31 | 2019-01-31 | Electronic firework spraying control device and electronic firework spraying system |
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| CN109595993B true CN109595993B (en) | 2023-05-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109916238B (en) * | 2019-04-30 | 2021-05-14 | 深圳市金泰坦科技有限公司 | Electronic firework injection device |
| CN118031728A (en) * | 2020-02-08 | 2024-05-14 | 爆米科技(深圳)有限公司 | Firework with disinfection effect |
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| CN205403616U (en) * | 2016-03-15 | 2016-07-27 | 田先农 | Device is touched off to fireworks based on extreme misery arrow |
| CN205561664U (en) * | 2016-03-30 | 2016-09-07 | 北京儿童创客教育科技有限公司 | Environmental protection fireworks |
| CN108653785A (en) * | 2017-04-05 | 2018-10-16 | 深圳市里阳电子有限公司 | A kind of fragrance generating means, fumigation device and electric candle |
| CN106959060A (en) * | 2017-04-20 | 2017-07-18 | 浙江大学 | One kind removes haze electronic fireworks and its method |
| CN107774079A (en) * | 2017-11-20 | 2018-03-09 | 彭奕昕 | City dedusting drop haze system |
| CN208390330U (en) * | 2018-04-19 | 2019-01-18 | 西安六通机电工程有限公司 | A kind of pressure liftable fountain apparatus |
| CN109238031A (en) * | 2018-10-26 | 2019-01-18 | 江西中天景观有限公司 | A kind of Artificial fireworks light show system |
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| CN109595993A (en) | 2019-04-09 |
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