CN104474652A - Shelling projection type forest fire extinguisher - Google Patents
Shelling projection type forest fire extinguisher Download PDFInfo
- Publication number
- CN104474652A CN104474652A CN201410718483.9A CN201410718483A CN104474652A CN 104474652 A CN104474652 A CN 104474652A CN 201410718483 A CN201410718483 A CN 201410718483A CN 104474652 A CN104474652 A CN 104474652A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- umbrella cover
- body portion
- fire extinguisher
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C19/00—Hand fire-extinguishers in which the extinguishing substance is expelled by an explosion; Exploding containers thrown into the fire
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
- A62C3/0228—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft
- A62C3/025—Fire extinguishing bombs; Projectiles and launchers therefor
Abstract
The invention discloses a vehicle-mounted air-drop type forest fire extinguisher which comprises a cylindrical main body part, an air cap, an umbrella cover and a tail wing, wherein the air cap is arranged at the front end of the cylindrical main body part; the umbrella cover is arranged at the rear end of the cylindrical main body part; the tail wing is arranged at the tail part of the umbrella cover; the air cap is separated from the cylindrical main body part by virtue of a pressure-bearing seat; the cylindrical main body part is separated from the umbrella cover by virtue of an ejection seat; a fuze of which the section is convex is arranged in the umbrella cover, the protruding part props against the end part of the conical inner surface of the umbrella cover, and the bottom of the fuze is fixedly arranged on the bearing seat; a gap between the bearing seat and the ejection seat is filled with a fire extinguishing agent; one end of a long-strip-shaped central detonator is fixed together with the bearing seat, and the other end of the central detonator is suspended in the fire extinguishing agent; the interior of the umbrella cover is filled with a brake parachute; a bomb-parachute connector connected with the brake parachute is fixedly arranged in the middle of the end surface, which faces the umbrella cover, of the ejection seat; and a cutting rope is arranged at the upper end, which faces the umbrella cover, of the ejection seat. According to the fire extinguisher disclosed by the invention, each part is reliable in connection, and the filling quantity of the fire extinguishing agent is increased, so that the fire extinguishing efficiency is high.
Description
Technical field
The present invention relates to technical field of fire control, particularly relate to one and bombard throwing formula forest fire fire extinguisher.
Background technology
Forest fire, particularly large-area forest fire, be considered to one of global major natural disasters.It has wide, sudden strong, the features such as difficulty of putting out a fire to save life and property of generation.Once forest fire occurs will cause people and animals' heavy casualties and huge property loss, and ecological environment is damaged.
Current countries in the world have developed a large amount of forest fire prevention and control equipments.These device categories are various, Various Functions.Existing far field forest fire extinguisher can carry out extinguishing operation by various transmitter in the place of long distance duration and degree of heating, extinguishing chemical in body can permeate in the scene of a fire rapidly, uniformly under detonating agent effect, fire hydrant can be pressed, control developing fire, have fire-fighting efficiency high, be swift in response, by the little feature of the influence of topography.
Existing forest fire fire extinguisher, such as notification number is the Chinese patent of CN203203478U, the multi-functional body of its open a kind of electric shock hairdo, comprises and emits the formula wind wing, bullet main body and electric shock hair slide seat, can not leave over shell case in rifle body after body is launched.But this kind of structure extinguishing chemical loading is less.This kind of extinguishing cannonball is when case fragmentation simultaneously, and housing easily sputters everywhere, causes personnel hazard.
Summary of the invention
Technical problem to be solved by this invention is, for the above-mentioned deficiency of prior art, propose a kind of compact conformation, extinguishing chemical loadings larger bombard throwing formula forest fire fire extinguisher.
The technical scheme that the present invention solves the employing of its technical problem is, propose one and bombard throwing formula forest fire fire extinguisher, it comprises cylinder body portion, is arranged at the blast cap of front end, cylinder body portion, is arranged at the umbrella cover of rear end, cylinder body portion and is arranged at the empennage of umbrella cover afterbody; Described blast cap and cylinder body portion are separated by Pressure Block, and described cylinder body portion and umbrella cover are separated by bullet seat; Cross section is that the fuse of convex shape is arranged in umbrella cover, and its protuberance supports umbrella cover cone-shaped inner surface end, and bottom is fixed on load bearing seat; Be filled with extinguishing chemical between described load bearing seat and bullet seat, strip central booster one end and load bearing seat are fixed, and the other end is suspended in extinguishing chemical; Described umbrella cover inside is filled with drag parachute, and described bullet seat is installed with the bullet umbrella connector be connected with drag parachute in the middle part of the end face of umbrella cover, and described bullet seat is provided with flexible linear shaped charge towards the upper end of umbrella cover.
Further, each parameter in described cylinder body portion meets following formula:
Wherein, u
cfor pine pool coefficient, the r of extinguishing chemical are cylinder body portion radius, d is cylinder body portion wall thickness, and l is cylinder body minister degree, m
1for cylinder body portion quality, m is fire extinguisher gross mass, the yield limit value of the material that σ adopts for cylinder body portion.
Further, the part that described bullet seat contacts with cylinder body portion inner surface is also provided with sealing ring.
Further, described bullet umbrella connector comprises bolt, the nut be sheathed on bolt, is arranged at the T-shaped nut of nut end, also comprises the rotating disk be sheathed on nut, be provided with ball bearing between described rotating disk and T-shaped nut, described rotating disk end is also provided with limit screw cap; Described rotating disk is connected with drag parachute, and limit screw cap restriction rotating disk moves.
The present invention bombards throwing formula forest fire fire extinguisher each several part and connects reliable, drag parachute is placed in cylinder body subordinate end, makes full use of the space between empennage and cylinder body portion, increase the loadings of extinguishing chemical, make fire-fighting efficiency higher.Further, the invention still further relates to each size in cylinder body portion, after the relation between mass parameter and Materials Yield Limit value makes fire extinguisher be launched, a large amount of lethal fragments when cylinder body portion is popped, can not be caused.
Accompanying drawing explanation
Fig. 1 is the generalized section that the present invention bombards throwing formula forest fire fire extinguisher;
Fig. 2 is that Fig. 1 is hit by a bullet the cross-sectional schematic of umbrella connector;
Fig. 3 is that each parameter in cylinder body portion of the present invention calculates schematic diagram.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Please refer to Fig. 1, Fig. 2, the present invention bombards throwing formula forest fire fire extinguisher, it empennage 40 comprising cylinder body portion 10, be arranged at the blast cap 20 of front end, cylinder body portion, be arranged at the umbrella cover 30 of rear end, cylinder body portion and be arranged at umbrella cover afterbody.
Described blast cap 20 is separated by Pressure Block 50 with cylinder body portion 10, and described cylinder body portion 10 is separated by bullet seat 60 with umbrella cover 30; Cross section is that the fuse 70 of convex shape is arranged in umbrella cover 30, and its protuberance supports umbrella cover 30 cone-shaped inner surface end, and bottom is fixed on load bearing seat 50.
Be filled with extinguishing chemical 100 between described load bearing seat 50 and bullet seat 60, strip central booster 80 one end and load bearing seat 50 are fixed, and the other end is suspended in extinguishing chemical 100.
Described umbrella cover 30 inside is filled with drag parachute 90, and described bullet seat 60 is installed with the bullet umbrella connector 200 be connected with drag parachute 90 in the middle part of the end face of umbrella cover, and described bullet seat 60 is provided with flexible linear shaped charge 300 towards the upper end of umbrella cover.
The course of work that the present invention bombards throwing formula forest fire fire extinguisher is described below:
Bombard after throwing formula forest fire fire extinguisher is launched, the fire extinguisher flight certain predetermined time, umbrella cover 30 is opened, flexible linear shaped charge 300 makes drag parachute 90 open thus the flying speed of fire extinguisher is reduced, after fire extinguisher drop to predeterminated position, the fuse 70 of blast cap 20 makes central booster 80 explode, and fire is extinguished by the extinguishing chemical 100 be stored in cylinder body portion 10.
Preferably, for making sealing property better, the part that the present invention also contacts with cylinder body portion 10 inner surface at bullet seat 60 is also provided with sealing ring 11.
In addition, due in the present invention, drag parachute 90 is arranged at rear end, cylinder body portion, and in order to make drag parachute 90 energy smooth opening, the structure of bullet umbrella connector 200 of the present invention as shown in Figure 2.In Fig. 2, bullet umbrella connector 200 comprises bolt 210, the nut 220 be sheathed on bolt 210, be arranged at the T-shaped nut 230 of nut 220 end, also comprise the rotating disk 240 be sheathed on nut 230, be provided with ball bearing 250 between described rotating disk 240 and T-shaped nut 230, described rotating disk 240 end is also provided with limit screw cap 260; Described rotating disk 240 is connected with drag parachute 90, and limit screw cap 260 limits rotating disk 240 and moves.
After flexible linear shaped charge 300 works, drag parachute 90 is inflated, and rotating disk 230 is subject to the pulling force of drag parachute 90, its bottom surface contacts with ball bearing 250, added on the inner face being pressed in T-shaped nut 230 by shaft strength, make bearing in running order, ensure the flexible rotating of drag parachute 90.
Preferably, please refer to Fig. 3, Fig. 3 is the calculating schematic diagram that the present invention bombards the cylinder body portion of throwing formula forest fire fire extinguisher.Owing to bombarding throwing formula forest fire fire extinguisher when landing, empennage and umbrella cover etc. have departed from, therefore when calculating without the need to considering.
The present invention bombards throwing formula forest fire fire extinguisher after being launched, land ignite time, need on the one hand to make cylinder body portion produce breach to make extinguishing chemical energy out injected, the fragmentation of cylinder body portion can not be made to become a large amount of fragment and form potential safety hazard on the other hand.
For head it off, first Water demand bombard throwing formula forest fire fire extinguisher launch after the inertia force that brings of acceleration on the impact in cylinder body portion, secondly analyze extinguishing chemical under acceleration extinguishing agent pressure on the impact in cylinder body portion.
According to elastic theory, bombard throwing formula forest fire fire extinguisher launch after the impact of inertia force on cylinder body portion that bring of acceleration meet following formula:
Extinguishing chemical extinguishing agent pressure under acceleration meets following formula:
In above-mentioned formula (1) and formula (2), u
cfor pine pool coefficient, the r of extinguishing chemical are cylinder body portion radius, d is cylinder body portion wall thickness, and l is cylinder body minister degree, m
1for cylinder body portion quality, m is fire extinguisher gross mass.
Experimentally, when extinguishing agent pressure acts on cylinder body portion jointly under acceleration for the inertia force that the acceleration after bombarding throwing formula forest fire fire extinguisher and launching brings and extinguishing chemical, if the product of two power is greater than the limit yield strength σ of cylinder body portion material, then can break in cylinder body portion, and extinguishing chemical can be able to leak from cylinder body portion.
Still possess larger acceleration and inertia owing to bombarding throwing formula forest fire fire extinguisher when landing and igniting, the change that therefore cylinder body portion parameter is trickle is exaggerated under this acceleration and inertia, produces many beyond thought results.
In the present embodiment, through great many of experiments and trial, finally bombard throwing formula forest fire fire extinguisher launch after the inertia force that brings of acceleration and the product of extinguishing chemical extinguishing agent pressure under acceleration meet following formula:
Also the limit yield strength that namely product of F and P should be greater than cylinder body portion material is still less than 1.25 to 1.45 times of the limit yield strength of cylinder body portion material.
With this understanding, extinguishing chemical can discharge from cylinder body portion smoothly, and cylinder body portion also can not be broken into the fragment of a large amount of splashes simultaneously.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (4)
1. bombard a throwing formula forest fire fire extinguisher, it is characterized in that: comprise cylinder body portion, be arranged at the blast cap of front end, cylinder body portion, be arranged at the umbrella cover of rear end, cylinder body portion and be arranged at the empennage of umbrella cover afterbody; Described blast cap and cylinder body portion are separated by Pressure Block, and described cylinder body portion and umbrella cover are separated by bullet seat; Cross section is that the fuse of convex shape is arranged in umbrella cover, and its protuberance supports umbrella cover cone-shaped inner surface end, and bottom is fixed on load bearing seat; Be filled with extinguishing chemical between described load bearing seat and bullet seat, strip central booster one end and load bearing seat are fixed, and the other end is suspended in extinguishing chemical; Described umbrella cover inside is filled with drag parachute, and described bullet seat is installed with the bullet umbrella connector be connected with drag parachute in the middle part of the end face of umbrella cover, and described bullet seat is provided with flexible linear shaped charge towards the upper end of umbrella cover.
2. according to claim 1ly bombard throwing formula forest fire fire extinguisher, it is characterized in that: each parameter in described cylinder body portion meets following formula:
Wherein, u
cfor pine pool coefficient, the r of extinguishing chemical are cylinder body portion radius, d is cylinder body portion wall thickness, and l is cylinder body minister degree, m
1for cylinder body portion quality, m is fire extinguisher gross mass, the yield limit value of the material that σ adopts for cylinder body portion.
3. according to claim 1ly bombard throwing formula forest fire fire extinguisher, it is characterized in that: the part that described bullet seat contacts with cylinder body portion inner surface is also provided with sealing ring.
4. according to claim 1ly bombard throwing formula forest fire fire extinguisher, it is characterized in that: described bullet umbrella connector comprises bolt, the nut be sheathed on bolt, be arranged at the T-shaped nut of nut end, also comprise the rotating disk be sheathed on nut, be provided with ball bearing between described rotating disk and T-shaped nut, described rotating disk end is also provided with limit screw cap; Described rotating disk is connected with drag parachute, and limit screw cap restriction rotating disk moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718483.9A CN104474652A (en) | 2014-12-02 | 2014-12-02 | Shelling projection type forest fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718483.9A CN104474652A (en) | 2014-12-02 | 2014-12-02 | Shelling projection type forest fire extinguisher |
Publications (1)
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| CN104474652A true CN104474652A (en) | 2015-04-01 |
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Family Applications (1)
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| CN201410718483.9A Pending CN104474652A (en) | 2014-12-02 | 2014-12-02 | Shelling projection type forest fire extinguisher |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362335A (en) * | 2016-08-02 | 2017-02-01 | 北京电子工程总体研究所 | Fire extinguishing bomb based on aerial throwing mode |
| TWI605855B (en) * | 2015-10-20 | 2017-11-21 | The 202Nd Arsenal Materiel Production Center | Bullet structure improved |
| CN107537108A (en) * | 2016-06-23 | 2018-01-05 | 中国人民解放军军械工程学院 | Airborne water mists fire-fighting bomb for forest |
| CN107537106A (en) * | 2016-06-23 | 2018-01-05 | 中国人民解放军军械工程学院 | The airborne water mists fire-fighting bomb for forest system of flexible connection formula |
| CN107537107A (en) * | 2016-06-23 | 2018-01-05 | 中国人民解放军军械工程学院 | The airborne water mists fire-fighting bomb for forest system of the formula that is rigidly connected |
| CN112278280A (en) * | 2020-10-28 | 2021-01-29 | 广西都安壮志雄心科技发展有限公司 | Fire control breaks window bullet and unmanned aerial vehicle thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI605855B (en) * | 2015-10-20 | 2017-11-21 | The 202Nd Arsenal Materiel Production Center | Bullet structure improved |
| CN107537108A (en) * | 2016-06-23 | 2018-01-05 | 中国人民解放军军械工程学院 | Airborne water mists fire-fighting bomb for forest |
| CN107537106A (en) * | 2016-06-23 | 2018-01-05 | 中国人民解放军军械工程学院 | The airborne water mists fire-fighting bomb for forest system of flexible connection formula |
| CN107537107A (en) * | 2016-06-23 | 2018-01-05 | 中国人民解放军军械工程学院 | The airborne water mists fire-fighting bomb for forest system of the formula that is rigidly connected |
| CN106362335A (en) * | 2016-08-02 | 2017-02-01 | 北京电子工程总体研究所 | Fire extinguishing bomb based on aerial throwing mode |
| CN112278280A (en) * | 2020-10-28 | 2021-01-29 | 广西都安壮志雄心科技发展有限公司 | Fire control breaks window bullet and unmanned aerial vehicle thereof |
| CN112278280B (en) * | 2020-10-28 | 2022-05-13 | 广西都安壮志雄心科技发展有限公司 | Fire control breaks window bullet and unmanned aerial vehicle thereof |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20160928 Address after: Liuyang City, Hunan province 410305 Changsha Dahu Town Stone Village Applicant after: Liuyang DaHu Art Fireworks Display Group Co., Ltd. Address before: Liuyang City, Hunan province 410305 Changsha Dahu Town Stone Village Applicant before: Dragon's fountain security protection Equipment Limited, Hunan |
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Application publication date: 20150401 |