CN113295054B - Explosive charging structure for ring-type fireworks - Google Patents
Explosive charging structure for ring-type fireworks Download PDFInfo
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- CN113295054B CN113295054B CN202110726145.XA CN202110726145A CN113295054B CN 113295054 B CN113295054 B CN 113295054B CN 202110726145 A CN202110726145 A CN 202110726145A CN 113295054 B CN113295054 B CN 113295054B
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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
- F42B4/30—Manufacture
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Abstract
The invention discloses an explosive charge structure for ring-blasting fireworks, which relates to the technical field of fireworks processing and comprises a base shell, wherein an explosive charge partition plate and a partition plate are sequentially arranged in the base shell from top to bottom, the explosive charge partition plate and the partition plate divide the interior of the base shell into a transmitting filler area and a buffering filler area from top to bottom, an explosive charge spherical shell is arranged at the top end of the base shell, the explosive charge partition plate comprises a horizontal plate connected with the inner wall of the base shell, a plurality of charge grooves are formed in the horizontal plate, an inclined plate is arranged on the upper side of the horizontal plate, the surfaces of the inclined plate and the horizontal plate are inclined towards the charge grooves, the explosive charge partition plate is further arranged in the base shell, the inclined plate is arranged in the explosive charge partition plate, and the propellant powder can be blown to the interior of the transmitting filler area through an exhaust pipe in a filler device, so that the problem of wall hanging of the propellant can be prevented, and the explosive charge spherical shell can be prevented from being damaged by the propellant when the propellant is launched.
Description
Technical Field
The invention relates to the technical field of firework processing, in particular to an explosive charging structure for ring-type fireworks.
Background
Fireworks and firecrackers take pyrotechnic compositions as raw materials and are used for entertainment supplies generating sound, light and sound when combined with fireworks and inner barrel parts of fireworks, wherein the inner barrel parts of the combined fireworks and the inner barrel parts are provided with blasting powder and bright beads which are arranged together to generate effects of light, sound and the like when ignited, the blasting powder is divided into two categories of metal-containing components and metal-free components, and the fireworks and the firecrackers take the pyrotechnic compositions containing the blasting powder as power to launch fireworks components.
Through retrieval, the Chinese patent discloses a firework powder charging device (publication number: CN 203246596U), which comprises a quantitative plate and a powder leakage plate, wherein the quantitative plate is arranged on a workbench of a powder charging machine, the lower end of a quantitative hole in the quantitative plate is provided with a valve, and one edge of the valve is hinged on the quantitative plate and is connected with a valve opening and closing mechanism; the medicine leakage plate is arranged below the quantitative plate and is arranged on the frame, and the lower part of the medicine leakage hole of the medicine leakage plate is a small hole while the upper part is a large hole. The valve opening and closing mechanism can be an air cylinder, an oil cylinder, an electromagnet, a cam or a connecting rod mechanism. When the quantitative plate is provided with a plurality of rows of quantitative holes, the lower end of each row of quantitative holes is provided with a valve, the side edge of each valve is fixedly connected with a plate with a long slotted hole, and the other push-pull plate is provided with a plurality of small columns, and each small column is inserted into the long slotted hole of the plate fixedly connected with the side edge of the valve.
When the existing fireworks are charged, the problem of wall hanging easily occurs to gunpowder inside the fireworks, so that the gunpowder is easily adhered to the outer side when the explosive spherical shell is installed, and the shell of the explosive spherical shell is easily damaged by the gunpowder when the explosive spherical shell is launched.
Disclosure of Invention
In order to solve the technical problems that gunpowder in fireworks is easy to hang on the wall when the existing fireworks are loaded, so that the gunpowder is easy to adhere to the outer side when the explosive ball shell is installed, and the shell of the explosive ball shell is easy to damage by the gunpowder when the explosive ball shell is launched, the invention aims to provide the explosive loading structure for the ring-type fireworks.
The purpose of the invention can be realized by the following technical scheme:
an explosive charge structure for ring-type fireworks comprises a base shell, wherein an explosive loading partition plate and a partition plate are sequentially arranged in the base shell from top to bottom, the explosive loading partition plate and the partition plate divide the interior of the base shell into an emission filler area and a buffer filler area from top to bottom, and an explosive spherical shell is arranged at the top end of the base shell;
the powder charging partition plate comprises a horizontal plate connected with the inner wall of the base shell, a plurality of charging grooves are formed in the horizontal plate, an inclined plate is arranged on the upper side of the horizontal plate, and the surfaces of the inclined plate and the horizontal plate are inclined towards the charging grooves and are used for preventing powder from being pushed to be accumulated on the upper side of the powder charging partition plate;
a buffer filler area: the delay powder is filled inside, a first ignition lead is installed inside the delay powder, and one end of the delay powder extends to the outer side of the base shell;
an emission filling area: the inner part of the delay powder is filled with the propelling powder, a delay lead is arranged in the propelling powder, and the delay lead penetrates through the partition plate and extends to the inner part of the delay powder;
and a second ignition lead is arranged on the side surface of the explosive spherical shell, penetrates through the explosive filling partition plate and the second ignition lead and extends to the inside of the buffer filling area.
As a further scheme of the invention: the lower surface of the base shell is provided with a plurality of supporting blocks, the distance between the supporting blocks is the same, and the supporting blocks are used for supporting the base shell.
As a further scheme of the invention: the diameter and material of the second ignition lead are the same as the delay lead, and the length of the second ignition lead is 2-2.5 times of the length of the delay lead, so that the time difference of final combustion of the second ignition lead and the delay lead is realized.
As a further scheme of the invention: the outer side of the second ignition lead is sleeved with a blocking sleeve, and the bottom end of the second ignition lead extends to the outer side of the blocking sleeve and is used for preventing the middle part of the second ignition lead from being ignited by the pushed gunpowder.
As a further scheme of the invention: the included angles between the charging grooves and the vertical direction are the same, and are all 0-35 degrees, and the included angles are used for changing the acting force angle for pushing gunpowder.
As a further scheme of the invention: the upper surface of the base shell is fixedly connected with an assembly plate, the assembly plate is attached to the side surface of the explosive ball shell, and the upper surface of the assembly plate does not exceed the middle line of the explosive ball shell in the horizontal direction.
As a further scheme of the invention: the use method of the explosive charge structure comprises the following steps:
the method comprises the following steps: installing one end of a first ignition lead into the buffer filling area, and filling delay powder into the buffer filling area;
step two: installing the delay lead and the second ignition lead into the partition plate, and then installing the partition plate in the base shell and tightly attaching the partition plate to the upper side of the delay powder;
step three: placing a plurality of base shells on the upper side of a conveyor belt and conveying the base shells to the interior of a filling device;
step four: starting a first group of clamping fixtures on the lower side of the explosive loader, fixing a plurality of base shells, starting a first air cylinder, embedding an explosive loading pipe into the base shells, and filling the propellant powder into an emission filling area through a charging chute;
step five: the base shells are moved to the lower sides of the expansion supporting pipes, the second air cylinders are started, the bottom ends of the exhaust pipes are embedded into the inner portions of the base shells, the fourth air cylinders are started again, the expansion supporting pipes slide along the exhaust pipes, the expansion supporting pipes are lowered into the base shells of the lower sides, the expansion supporting pipes are fixed, the high-pressure air blower is started, and the residual delay gunpowder on the surface of the powder filling partition plate is cleaned to a transmitting filling area.
As a further scheme of the invention: the filling device comprises a processing table, wherein a conveying belt is fixedly connected to the upper surface of the processing table, a processing frame is fixedly connected to one side, close to the conveying belt, of the upper surface of the processing table, a medicine loading device is fixedly connected to the inside of processing, the medicine loading device is provided with a plurality of discharge ports, medicine loading pipes are connected to the outer sides of the discharge ports in a sliding mode, the medicine loading pipes are connected with one another, and first air cylinders are fixedly connected between the medicine loading pipes on two sides and the processing frame;
processing frame side is close to one side fixedly connected with high pressure positive blower of charge ware, and the inside downside that is close to high pressure positive blower of processing frame is provided with the ventilation case, fixedly connected with a plurality of second cylinder between the side of ventilation case and the processing frame, and through the connecting pipe intercommunication between ventilation case and the high pressure positive blower, a plurality of air outlet has been seted up to the lower surface of ventilation case, the equal fixedly connected with exhaust pipe of a plurality of air outlet, a plurality of the equal sliding connection in the outside of exhaust pipe has the inflation stay tube, a plurality of interconnect between the inflation stay tube, and two sets of equal fixedly connected with fourth cylinder between inflation stay tube and the processing frame.
As a further scheme of the invention: clamping and fixing devices are arranged on the upper surface of the processing table and close to the lower sides of the medicine loading device and the ventilation box;
the centre gripping fixer includes two sets of fixed plates, and is two sets of the fixed plate all with processing platform fixed connection and distribute in the both sides of conveyer belt, the equal fixedly connected with a plurality of third cylinder in inside of fixed plate, a plurality of the output of third cylinder all is towards conveyer belt and fixedly connected with grip block.
As a further scheme of the invention: the bottom of exhaust pipe is provided with the inflation mouth, the inflation mouth is round platform shape.
As a further scheme of the invention: the expansion supporting pipe comprises a main pipe body, wherein the main pipe body is sleeved on the outer side of the exhaust pipe, the bottom end of the main pipe is fixedly connected with a connecting belt, a plurality of assembling blocks and a plurality of assembling blocks are fixedly connected to the lower surface of the connecting belt, an expansion belt and a plurality of expansion belts are connected to the assembling blocks in an adhesion mode, and the top ends of the expansion belts are connected with the connecting belt.
As a further scheme of the invention: an inner groove is formed between the assembly blocks and the expansion belt, and the diameter of the inner groove is smaller than that of the bottom of the expansion opening, so that when the expansion supporting pipe descends, the inner groove can be opened by the expansion opening, and the base shell is fixed.
The invention has the beneficial effects that:
the interior of a firework is divided into a buffer filling area and a transmitting filling area, the buffer filling area and the transmitting filling area are connected through a delay lead, meanwhile, a lead of an explosive starting spherical shell extends into delay gunpowder, the material of the delay gunpowder is the same as that of a second ignition lead, the same combustion speed can be kept, and a barrier sleeve is sleeved on the outer side of the second ignition lead, so that the second ignition lead can be prevented from being damaged by pushed gunpowder;
meanwhile, a powder charging partition plate is further arranged inside the base shell, an inclined plate is arranged in the powder charging partition plate, and the pushing powder can be blown to the inside of the emission filling area through an exhaust pipe in the filling device, so that the problem of wall hanging of the pushing powder is solved, and the explosion-proof powder ball shell is prevented from being damaged by the powder when the explosion-proof powder ball shell is emitted;
on the other hand, the filling device is also provided with the expansion supporting tube, so that the base shell can be reinforced during processing, the problem of sliding of the base shell is prevented, and the processing quality can be improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a base housing of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1 in accordance with the present invention;
FIG. 3 is a front view of the packing assembly of the present invention;
FIG. 4 is a sectional view of the exhaust duct and the expansion support tube of the present invention.
In the figure: 1. a base housing; 2. a supporting block; 3. a partition plate; 4. a charge baffle; 5. a first ignition lead; 6. a delay lead; 7. a second ignition lead; 8. assembling a plate; 9. blasting the explosive spherical shell; 10. delaying gunpowder; 11. propelling the gunpowder; 12. a processing table; 13. a conveyor belt; 14. a holding fixture; 15. a medicine loading device; 16. a medicine loading pipe; 17. a first cylinder; 18. a high pressure fan; 19. a ventilation box; 20. an exhaust duct; 21. an expansion support tube; 22. a second cylinder; 23. a fourth cylinder; 41. a horizontal plate; 42. a charging chute; 43. an inclined plate; 141. a fixing plate; 142. a third cylinder; 143. a clamping plate; 201. an expansion port; 211. a main pipe; 212. a connecting belt; 213. assembling the blocks; 214. an expansion band.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an explosive charge structure for ring-type fireworks comprises a base shell 1, wherein a charge partition plate 4 and a partition plate 3 are sequentially arranged in the base shell 1 from top to bottom, the charge partition plate 4 and the partition plate 3 divide the interior of the base shell 1 into a launch filler area and a buffer filler area from top to bottom, and an explosive ball shell 9 is arranged at the top end of the base shell 1;
the powder filling partition plate 4 comprises a horizontal plate 41 connected with the inner wall of the base shell 1, a plurality of charging grooves 42 are formed in the horizontal plate 41, an inclined plate 43 is arranged on the upper side of the horizontal plate 41, the surfaces of the inclined plate 43 and the horizontal plate 41 incline towards the charging grooves 42, and the charging grooves 42 are vertically distributed;
a buffer filler zone: the interior is filled with the delay powder 10, the interior of the delay powder 10 is provided with a first ignition lead 5, and one end of the delay powder 10 extends to the outer side of the base shell 1;
an emission filling area: the inner part is filled with the propelling powder 11, the inner part of the propelling powder 11 is provided with a delay lead 6, and the delay lead 6 penetrates through the partition plate 3 and extends to the inner part of the delay powder 10;
and a second ignition lead 7 is installed on the side surface of the explosive spherical shell 9, and the second ignition lead 7 penetrates through the explosive partition plate 4 and the second ignition lead 7 and extends to the inside of the buffer filling area.
The lower surface of base shell 1 installs a plurality of supporting shoe 2, and the interval between a plurality of supporting shoe 2 is the same, through a plurality of supporting shoe 2 for support base shell 1.
The diameter and the material of the second ignition lead 7 are the same as those of the delay lead 6, the length of the second ignition lead 7 is 2.3 times that of the delay lead 6, the outer side of the second ignition lead 7 is sleeved with a barrier sleeve, the bottom end of the second ignition lead 7 extends to the outer side of the barrier sleeve and is used for preventing the middle part of the second ignition lead 7 from being ignited by the propellant powder 11, and the second ignition lead 7 is longer than the delay lead 6, so that the explosion time of the explosive charge bulb shell 9 can be delayed, and the height of fireworks can be controlled.
The upper surface of base shell 1 is fixedly connected with assembly board 8, and the side at explosive charge shell 9 is laminated to assembly board 8, and the upper surface of assembly board 8 is no longer than the intermediate line of explosive charge shell 9 horizontal direction, prevents to cause the hindrance to explosive charge shell 9 when launching.
Referring to fig. 3-4, the filling device includes a processing table 12, a conveyor belt 13 is fixedly connected to the upper surface of the processing table 12, a processing frame is fixedly connected to one side of the upper surface of the processing table 12, which is close to the conveyor belt 13, a charging device 15 is fixedly connected to the inside of the processing, the charging device 15 is provided with a plurality of discharge ports, charging pipes 16 are slidably connected to the outer sides of the plurality of discharge ports, the charging pipes 16 are connected to each other, first air cylinders 17 are fixedly connected between the charging pipes 16 on the two sides and the processing frame, and the charging device 15 can adopt a charging device commonly used in the prior art, so that the production cost is reduced;
processing frame side is close to one side fixedly connected with high pressure positive blower 18 of charge ware 15, and the inside downside that is close to high pressure positive blower 18 of processing frame is provided with ventilation box 19, fixedly connected with a plurality of second cylinder 22 between ventilation box 19's the side and the processing frame, and through the connecting pipe intercommunication between ventilation box 19 and the high pressure positive blower 18, a plurality of air outlet has been seted up to ventilation box 19's lower surface, the equal fixedly connected with exhaust pipe 20 of a plurality of air outlet, the equal sliding connection in outside of a plurality of exhaust pipe 20 has inflation support tube 21, interconnect between a plurality of inflation support tube 21, and equal fixedly connected with fourth cylinder 23 between two sets of inflation support tube 21 and the processing frame.
The upper surface of the processing table 12 is provided with a clamping fixer 14 close to the lower sides of the medicine loader 15 and the ventilation box 19;
the clamping fixer 14 comprises two sets of fixing plates 141, the two sets of fixing plates 141 are fixedly connected with the processing table 12 and distributed on two sides of the conveying belt 13, a plurality of third cylinders 142 are fixedly connected to the inside of the fixing plates 141, the output ends of the plurality of third cylinders 142 face the conveying belt 13 and the clamping plate 143, and the base shell 1 can be clamped and fixed through the clamping fixer 14.
The bottom end of the exhaust duct 20 is provided with an expansion port 201, the expansion port 201 is in a circular truncated cone shape, and the larger diameter end of the expansion port 201 faces downwards.
An inner groove is formed between the assembly blocks 213 and the expansion band 214, and the diameter of the inner groove is smaller than that of the bottom of the expansion opening 201, so that when the expansion support pipe 21 descends, the expansion opening 201 can expand the inner groove to fix the base shell 1.
The working principle of the invention is as follows:
one end of a first ignition lead 5 is arranged in the buffer filling area, and then delay powder 10 is filled in the buffer filling area;
installing a delay lead 6 and a second ignition lead 7 into the inside of the partition plate 3, and then installing the partition plate 3 into the inside of the base shell 1 and tightly attaching to the upper side of the delay powder 10;
placing a plurality of base shells 1 on the upper side of a conveyor belt 13 and conveying the base shells to the interior of a filling device;
starting a first group of clamping fixtures 14 on the lower side of a charging device 15, fixing a plurality of base shells 1, starting a first air cylinder 17, embedding a charging pipe 16 into the inner part of the base shells 1, and filling propelling gunpowder 11 into the inner part of a propellant charge area through a charging chute 42;
the base shells 1 are moved to the lower side of the expansion supporting pipe 21, the second air cylinder 22 is started, the bottom end of each exhaust pipe 20 is embedded into each base shell 1, the fourth air cylinder 23 is started, each expansion supporting pipe 21 slides along the exhaust pipe 20, the expansion supporting pipe 21 descends into the base shell 1 on the lower side, after an assembly block 213 in the expansion supporting pipe 21 touches an expansion opening 201 of the exhaust pipe 20, the expansion belt 214 is stretched to expand the inner diameter, the base shell 1 is fixed, the high-pressure fan 18 is started, and the residual delay gunpowder 10 on the surface of the powder charging partition plate 4 is cleaned to a propellant filling area.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (5)
1. An explosive charge structure for ring-blasting fireworks comprises a base shell (1) and is characterized in that explosive loading partition plates (4) and partition plates (3) are sequentially arranged in the base shell (1) from top to bottom, the explosive loading partition plates (4) and the partition plates (3) divide the interior of the base shell (1) into an emission filler area and a buffer filler area from top to bottom, and an explosive ball shell (9) is arranged at the top end of the base shell (1);
the explosive loading partition plate (4) comprises a horizontal plate (41) connected with the inner wall of the base shell (1), a plurality of charging grooves (42) are formed in the horizontal plate (41), an inclined plate (43) is mounted on the upper side of the horizontal plate (41), and chamfer structures matched with each other are arranged on the surfaces of the inclined plate (43) and the horizontal plate (41);
a buffer filler area: the interior of the base shell is filled with a delay powder charge (10), a first ignition lead (5) is installed inside the delay powder charge (10), and one end of the first ignition lead (5) extends to the outer side of the base shell (1);
an emission filling area: the inner part is filled with the propellant powder (11), a delay lead (6) is arranged in the propellant powder (11), and the delay lead (6) penetrates through the partition plate (3) and extends to the inner part of the delay powder (10);
a second ignition lead (7) is installed on the side face of the explosive spherical shell (9), and the second ignition lead (7) penetrates through the explosive filling partition plate (4) and the partition plate (3) and extends to the inside of the buffer filling area;
the use method of the explosive charge structure comprises the following steps:
the method comprises the following steps: one end of a first ignition lead (5) is arranged in the buffer filling area, and then delay powder (10) is filled in the buffer filling area;
step two: installing a delay lead (6) and a second ignition lead (7) into the inside of the partition plate (3), then installing the partition plate (3) into the inside of the base shell (1) and clinging to the upper side of the delay powder (10);
step three: placing a plurality of base shells (1) on the upper side of a conveyor belt (13) and conveying the base shells to the interior of a filling device;
step four: starting a first group of clamping fixtures (14) on the lower side of a charging device (15), fixing a plurality of base shells (1), starting a first air cylinder (17), embedding a charging pipe (16) into the base shells (1), and filling pushing gunpowder (11) into a launching and filling area through a charging chute (42);
step five: the method comprises the steps of moving a plurality of base shells (1) to the lower side of expansion supporting pipes (21), starting a second air cylinder (22), embedding the bottom end of each exhaust pipe (20) into the base shells (1), starting a fourth air cylinder (23), sliding each expansion supporting pipe (21) along the exhaust pipe (20), descending the expansion supporting pipes (21) into the base shells (1) on the lower side, fixing the expansion supporting pipes, starting a high-pressure fan (18), and cleaning the residual delay gunpowder (10) on the surfaces of powder filling partition plates (4) to a transmitting filling area.
2. The charge structure of the blasting charge for ring-fried fireworks according to claim 1, characterized in that the bottom surface of the base shell (1) is installed with a plurality of supporting blocks (2), and the intervals between the supporting blocks (2) are the same.
3. An explosive charge structure for ring-fried fireworks according to claim 1, characterized in that the diameter and material of the second ignition lead (7) are the same as the delay lead (6), and the length of the second ignition lead (7) is 2-2.5 times the length of the delay lead (6).
4. An explosive charge structure for ring-fried fireworks according to claim 1, characterized in that several of said charge chutes (42) are at the same angle to the vertical, all at 0-35 °.
5. The explosive charge structure for the ring-type fireworks according to claim 1, characterized in that the upper surface of the base shell (1) is fixedly connected with an assembly plate (8), the assembly plate (8) is attached to the side surface of the explosive ball shell (9), and the upper surface of the assembly plate (8) does not exceed the middle line of the explosive ball shell (9) in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110726145.XA CN113295054B (en) | 2021-06-29 | 2021-06-29 | Explosive charging structure for ring-type fireworks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110726145.XA CN113295054B (en) | 2021-06-29 | 2021-06-29 | Explosive charging structure for ring-type fireworks |
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| Publication Number | Publication Date |
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| CN113295054A CN113295054A (en) | 2021-08-24 |
| CN113295054B true CN113295054B (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110726145.XA Active CN113295054B (en) | 2021-06-29 | 2021-06-29 | Explosive charging structure for ring-type fireworks |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1823255A (en) * | 2003-07-15 | 2006-08-23 | 安德烈亚斯·福格特 | Pyrotechnical system, pyrotechnical object and burn off method |
| CN200989752Y (en) * | 2006-12-12 | 2007-12-12 | 湖南汇通贸易有限公司 | Fireworks cartridge |
| CN207600311U (en) * | 2017-07-18 | 2018-07-10 | 陈露 | A kind of firework structure |
| CN208998653U (en) * | 2018-09-28 | 2019-06-18 | 长沙市汇百金花炮有限公司 | A kind of cylindricality bullet firework structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9885549B2 (en) * | 2016-02-04 | 2018-02-06 | Jake's Fireworks Inc. | Fireworks aerial display shell and method of use |
-
2021
- 2021-06-29 CN CN202110726145.XA patent/CN113295054B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1823255A (en) * | 2003-07-15 | 2006-08-23 | 安德烈亚斯·福格特 | Pyrotechnical system, pyrotechnical object and burn off method |
| CN200989752Y (en) * | 2006-12-12 | 2007-12-12 | 湖南汇通贸易有限公司 | Fireworks cartridge |
| CN207600311U (en) * | 2017-07-18 | 2018-07-10 | 陈露 | A kind of firework structure |
| CN208998653U (en) * | 2018-09-28 | 2019-06-18 | 长沙市汇百金花炮有限公司 | A kind of cylindricality bullet firework structure |
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| CN113295054A (en) | 2021-08-24 |
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