CN101240993B - Fireworks burning launcher pressure-dividing device - Google Patents
Fireworks burning launcher pressure-dividing device Download PDFInfo
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- CN101240993B CN101240993B CN2008100577530A CN200810057753A CN101240993B CN 101240993 B CN101240993 B CN 101240993B CN 2008100577530 A CN2008100577530 A CN 2008100577530A CN 200810057753 A CN200810057753 A CN 200810057753A CN 101240993 B CN101240993 B CN 101240993B
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Abstract
The invention relates to a partial pressure device of a launching bracket for lighting firework, which includes the launching bracket, a partial pressure chamber is arranged in a middle part of the launching bracket, a top part of the partial pressure chamber is connected with a propellant powder combustion chamber, a chamber piston which can act from top to bottom is arranged on the lower part of the partial pressure chamber, an adjustment link is connected with a lower part of the chamber piston, the adjustment link arranges a gear keyslot, the gear keyslot is connected with a rocker arm through a bevel gear, pressure is determined according to calculated gas flow data before launching firework, the chamber piston is dried by the adjustment link and moved from top to bottom through shaking the rocker arm, therefore, volume of the partial pressure chamber is changed and gas consumption in the partial pressure chamber is controlled, then a thrust force which pushes a pyrotechnic shell upwards is changed, and a splashe of the pyrotechnic shell in the sky is determined. The invention has the advantage that range setting of the pyrotechnic shell is achieved through the partial pressure chamber of the invention, a number of the inventions are constituted and launched together, and a beautiful established pattern or words are able to appear.
Description
Technical field
The present invention relates to a kind of bleeder mechanism, say further to relate to a kind of gun pressure bleeder mechanism that is used for the fireworks burning launcher, belong to fireworks burning device technique field.
Background technology
Letting off fireworks is the multiple combination of effects that integrates sound, light, shape, look, has unique artistic charm, bring people with enjoyment and happy, also be people whenever the wedding and funeral arrangements marriage, on New Year's Day or other festivals, repair the house and make in room, the business activity important way that increases grand atmosphere commonly used, for a country, great celebration activity, Receiving Foreign Guests etc. all will with let off fireworks, salvo is as the important way of courtesy.As native place---the China of gunpowder invention, its making and the technology that lets off fireworks have a long history and pass on, and the infiltration in very long years is gone through in the pyrotechnics manufacturing, and current techique has suitable maturity.Because fireworks burning emission, relate to multidisciplinary, various complex art, for a long time, substantive breakthroughs have been failed for conventional art, during traditional in the past fireworks burning, the pressure gas that propellant powder is lighted generation is to enter launching tube along transmit direction, the promotion bullet travels forward, because the factor of the traditional pyrotechnics emission of influence comprises: the impulse charge amount, pyrotechnic shell weight, launching tube length and diameter, pyrotechnic shell and emission barrel gap etc., these factor cross correlations, influence each other, control difficulty, and decide the Cheng Gengjia difficulty, make and accurately decide journey and launch and become technical barrier.
Summary of the invention
In order to overcome the defective of above-mentioned prior art, the present invention discloses a kind of by the control of launcher dividing potential drop thorax cavity pressure size being realized deciding the launcher bleeder mechanism of journey launching fireworks, make and be transmitted into the aerial pyrotechnic shell point of impact in sky on the three dimensions point that presets, several these devices are combined emission simultaneously, will middlely on high form beautiful pattern or the literal that presets.
Technical scheme of the present invention is achieved in that a kind of bleeder mechanism of fireworks burning launcher, comprise launcher, the middle part of described launcher is provided with dividing potential drop thorax chamber, top, described dividing potential drop thorax chamber is connected with the gun propellant combustion chamber, the bottom be provided with can be up and down thorax chamber piston, piston lower end, described thorax chamber connects adjusts connecting rod, described adjustment connecting rod is provided with the gear keyway, described gear keyway is connected with rocking arm by a bevel gear, when shaking rocking arm, bevel gear rotates and drives the adjustment connecting rod that is provided with the gear keyway and moves up and down, and the thorax chamber piston of this moment also moves up and down, owing to moving up and down of thorax chamber piston, thereby changed the volume size in dividing potential drop thorax chamber, also realized the pressure size in dividing potential drop thorax chamber, the pressure size in dividing potential drop thorax chamber is determining the point of impact of pyrotechnic shell emission, has realized deciding journey.
And the wall in described dividing potential drop thorax chamber is provided with and is used for wall pressure compensate opening that dividing potential drop thorax cavity pressure is compensated, be provided with operated pneumatic valve in the described wall pressure compensate opening, the inner end of described wall pressure compensate opening links to each other with described dividing potential drop thorax chamber, the outer end communicates with atmosphere, according to initialize data, the wall pressure compensate opening plays the pressure pay-as-you-go operation of dividing potential drop thorax chamber and ambient atmosphere, has further guaranteed the accurate point of impact of pyrotechnic shell.
And described thorax chamber piston is provided with at least one piston pressure compensate opening, described piston pressure compensate opening is preferably four, also play the pay-as-you-go operation of dividing potential drop thorax cavity pressure and external atmospheric pressure, the point of impact of pyrotechnic shell is also played crucial effect.
The present invention has following advantage with respect to prior art:
1, the present invention is by changing the volume that changes dividing potential drop thorax chamber that moves up and down of thorax chamber piston, thereby changed the pressure in dividing potential drop thorax chamber, promote the also change thereupon of air-flow thrust that pyrotechnic shell makes progress when making emission, the point of impact of pyrotechnic shell also changes thereupon, has realized deciding journey.
2, be provided with thorax chamber compensate opening and piston compensated hole on the dividing potential drop thorax of the present invention chamber, during emission, realized the dynamic equilibrium of dividing potential drop thorax chamber stream pressure and external atmospheric pressure, further guaranteed the skyborne point of impact of pyrotechnic shell, it is more reliable to realize deciding journey.
Description of drawings
Fig. 1 is the bleeder mechanism floor map of a kind of fireworks burning launcher of the present invention.
The specific embodiment
In order to make one of ordinary skill in the art know technical scheme of the present invention, existing in conjunction with the accompanying drawings to further explanation at large of technical scheme do of the present invention.
A kind of bleeder mechanism of fireworks burning launcher, as Fig. 1, comprise launcher 1, the middle part of launcher 1 is provided with dividing potential drop thorax chamber 2,2 tops, dividing potential drop thorax chamber are connected with gun propellant combustion chamber 10, the bottom be provided with can be up and down thorax chamber piston 3, thorax chamber piston 3 is similar with the engine piston of known technology, piston 3 lower ends, thorax chamber connect adjusts connecting rod 4, thorax chamber piston 6 is fixed on adjusts connecting rod 4 upper ends, adjust connecting rod 4 and be provided with gear keyway 5, gear keyway 5 is arranged on the plane adjusting connecting rod 4 sides, and gear keyway 5 is connected with rocking arm 7 by a bevel gear 6 and is engaged, when shaking rocking arm 7, bevel gear 6 rotates and drives the adjustment connecting rod 4 that is provided with gear keyway 5 and moves up and down, and the thorax chamber piston 3 of this moment also moves up and down, owing to moving up and down of thorax chamber piston 3, thereby changed the volume size in dividing potential drop thorax chamber 2, also realized the pressure size in dividing potential drop thorax chamber 2, the pressure size in dividing potential drop thorax chamber 2 is determining the point of impact of pyrotechnic shell emission, has realized deciding journey.Before the emission,, determine thorax chamber volume size by the thorax cavity pressure size that presets, thereby and change thorax chamber volume and change the thorax cavity pressure by shaking rocking arm 7, make that point of impact realized determining when pyrotechnics launched.
And the wall in dividing potential drop thorax chamber 2 is provided with and is used for wall pressure compensate opening 8 that dividing potential drop thorax chamber 2 pressure are compensated, wall pressure compensate opening 8 inner ends are communicated with described dividing potential drop thorax chamber 2, the outer end communicates with atmosphere, according to initialize data, wall pressure compensate opening 8 plays the pressure dynamic equilibrium of dividing potential drop thorax chamber 2 and ambient atmosphere, has further guaranteed the accurate point of impact of pyrotechnic shell.
And thorax chamber piston 3 is provided with at least one piston pressure compensate opening 9, and piston pressure compensates 9 holes and is preferably four, also plays the pay-as-you-go operation of dividing potential drop thorax chamber 2 internal pressures and external atmospheric pressure, and the point of impact of pyrotechnic shell is also played crucial effect.
For the person of ordinary skill of the art, other advantage and modification all are conspicuous.Therefore, the present invention embodiment of not merely being defined in the specification to be put down in writing.Any disengaging by claim and its various changes that are equal to the spirit and scope of the present invention that partly limit all can realize.
Claims (3)
1. the bleeder mechanism of a fireworks burning launcher, comprise launcher (1), it is characterized in that, the middle part of described launcher (1) is provided with dividing potential drop thorax chamber (2), top, described dividing potential drop thorax chamber (2) is connected with gun propellant combustion chamber (10), the bottom be provided with can be up and down thorax chamber piston (3), described thorax chamber piston (3) lower end connects adjusts connecting rod (4), and described adjustment connecting rod (4) is provided with gear keyway (5), and described gear keyway (5) is connected with rocking arm (7) by a bevel gear (6).
2. the bleeder mechanism of a kind of fireworks burning launcher according to claim 1, it is characterized in that, the wall in described dividing potential drop thorax chamber (2) is provided with and is used for wall pressure compensate opening (8) that dividing potential drop thorax chamber (2) pressure is compensated, described wall pressure compensate opening (8) inner end links to each other with described dividing potential drop thorax chamber (2), and the outer end communicates with atmosphere.
3. the bleeder mechanism of a kind of fireworks burning launcher according to claim 1 is characterized in that, described thorax chamber piston (3) is provided with at least one piston pressure compensate opening (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100577530A CN101240993B (en) | 2008-02-15 | 2008-02-15 | Fireworks burning launcher pressure-dividing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100577530A CN101240993B (en) | 2008-02-15 | 2008-02-15 | Fireworks burning launcher pressure-dividing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101240993A CN101240993A (en) | 2008-08-13 |
| CN101240993B true CN101240993B (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100577530A Active CN101240993B (en) | 2008-02-15 | 2008-02-15 | Fireworks burning launcher pressure-dividing device |
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| CN (1) | CN101240993B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017107706A1 (en) * | 2017-04-10 | 2018-10-11 | Avl List Gmbh | Length-adjustable connecting rod with a cylinder-piston unit with anti-rotation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202969U (en) * | 1987-03-12 | 1988-01-13 | 兵器工业部第二○八研究所 | High-low pressure double-film-type salvo bomb |
| EP0694753A1 (en) * | 1994-07-19 | 1996-01-31 | Etienne Lacroix - Tous Artifices Sa | Pyrotechnic device for launching at least one projectile |
| CN1447091A (en) * | 2002-03-26 | 2003-10-08 | 拉菲尔军械发展公司 | Low characteristic shooting system and method for bullet |
| US20040159259A1 (en) * | 2003-02-19 | 2004-08-19 | Walker Ronald R. | Method and apparatus for smokeless pyrotechnic display |
| CN201155950Y (en) * | 2008-02-15 | 2008-11-26 | 陈延文 | Fireworks burning launcher pressure-dividing device |
-
2008
- 2008-02-15 CN CN2008100577530A patent/CN101240993B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202969U (en) * | 1987-03-12 | 1988-01-13 | 兵器工业部第二○八研究所 | High-low pressure double-film-type salvo bomb |
| EP0694753A1 (en) * | 1994-07-19 | 1996-01-31 | Etienne Lacroix - Tous Artifices Sa | Pyrotechnic device for launching at least one projectile |
| CN1447091A (en) * | 2002-03-26 | 2003-10-08 | 拉菲尔军械发展公司 | Low characteristic shooting system and method for bullet |
| US20040159259A1 (en) * | 2003-02-19 | 2004-08-19 | Walker Ronald R. | Method and apparatus for smokeless pyrotechnic display |
| CN201155950Y (en) * | 2008-02-15 | 2008-11-26 | 陈延文 | Fireworks burning launcher pressure-dividing device |
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| Publication number | Publication date |
|---|---|
| CN101240993A (en) | 2008-08-13 |
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