CN2259921Y

CN2259921Y - Hand throwing type powder fire extinguisher

Info

Publication number: CN2259921Y
Application number: CN 96213854
Authority: CN
Inventors: 于德秀
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-25
Filing date: 1996-06-25
Publication date: 1997-08-20
Anticipated expiration: 2006-06-25

Abstract

The utility model relates to a hand throwing type powder fire extinguisher belonging to a fire extinguishment apparatus, and is composed of a safety system, a switch system, a pressure system, an ignition delay system, a dry powder fire-extinguishing agent and a shell body. The safety system comprises a switch handle and a safety damp-proof cover in which the switch system is arranged; the switching system comprises a suspended umbrella, a suspended ring and a sliding body; the ignition timing system comprises a battery wire, an ignition head and a conical pressure overflow hole; the pressure system comprises a pressure pipe, an anti-static layer, an upper and a lower tools for screwing plugs, a connection pipe, a quick and a slow lead wires for a fuse wire, and military propellant powder. The utility model adopts reasonable break-trench slot structure; thus, the fragments are uniform and consistent after the shell body is exploded; the utility model has good effect, high safety and easy storage and use.

Description

A kind of air-drop formula dry powder extinguisher

The utility model relates to a kind of dry-chemical fire extinguishing equipment, especially a kind of air-drop formula dry powder Automatic Fire Extinguisher.

At present, fire distinguisher is varied both at home and abroad, but putting out a fire to save life and property of forest fire seemed powerless.U.S. Pat 3980139 disclosed a kind of fire extinguisher bombs, body is that glass is made, interior dress chemical liquid, chance heat, fire can be ignited, its body outer wall is the square that a plurality of right-angled intersection grooves surround, body embedded metal net, and obvious this fire extinguisher bomb transportation problem is bigger.The disclosed fire-fighting bomb for forest of Chinese patent CN87214195U is made up of the body and the explosive chamber of splendid attire extinguishing fluid.Divide air-drop, suspension and hand throwing type, its gunpowder chamber is at the center of body, also can be located in the collet of body bottom, fuse cord links to each other with the explosive chamber and is exposed to outside the body, hook or the like is arranged on the body, also have a kind of hand-throw type and automatically-controlled multifunctional dry powder extinguisher (application number 89208163.5) and a kind of high-effecient dry-powder foam extinguishing bomb CN86101060A.These several inventions are after body is blown, and extinguishing fluid or dry powder can not evenly scatter fully, and the fire extinguishing effect is not satisfactory.

The purpose of this utility model provides a kind of rational in infrastructure, effective, safe and reliable fire distinguisher, and the advantage of the above several inventions of abundant reference also compensates its defect.

The utility model makes housing fragment uniformity after blast owing to adopt the groove Rational structure that ruptures, and good extinguishing effect, and its igniting of security insurance is reliable, is convenient to produce, and stores and use.

The purpose of this utility model is achieved in that

Air-drop formula dry powder extinguisher is made up of insurance system, switching system, pressure system, spark delay system and powder extinguishing agent, housing.Insurance system is made up of the switch handle that is positioned at the fire extinguisher top, insurance dampproof cover, and switch handle links to each other with dampproof cover, and switching system is housed in the dampproof cover, and switching system is formed by hanging umbrella, suspension ring, gliding mass.Umbrella and gliding mass are hung in the suspension ring connection, the ignition timing system be positioned at switching system below, form by battery, lead, igniter head, the excessive hole of pressing of taper, pressure system is positioned at the centre of fire extinguisher, by force pipe, antistatic backing, gascheck, tube connector, fuse cord speed lead-in wire and military propellant powder are formed up and down, the fuse cord speed goes between and military propellant powder is filled in the force pipe.

Embodiment of the present utility model and concrete structure are provided by accompanying drawing:

Fig. 1. figure is partly cutd open in structural representation of the present utility model;

Fig. 2. ignition system circuit figure.

Below in conjunction with drawings and Examples the utility model is described further:

Each component names is as follows in Fig. 1 schematic diagram:

1. switch handle 12. tightens plug

2. insure dampproof cover 18. tube connectors

3. suspension ring 14. force pipes

4. hang umbrella 15. propellant powder

5. gliding mass 16. speeds go between

6. safety plug jack 17. housings

7. conductive contact is tightly filled in for 18. times

8. battery case 19. locating holes

9. loam cake 20. bases

10. spiral shell buckle closure 21. energy consume groove

11. igniting pond

As shown in Figure 1, dry powder extinguisher is made up of insurance system, switching system, pressure system, spark delay system and housing 17 and powder extinguishing agent; Insurance system is made up of the switch handle 1 that is positioned at the fire extinguisher top, insurance dampproof cover 2, and switch handle 1 links to each other with dampproof cover 2, in the dampproof cover 2 switching system is housed, and switching system is formed by hanging umbrella 4, suspension ring 3, gliding mass 5, and umbrella 4 and gliding mass 5 are hung in suspension ring 3 connections.Suspension ring 3 cross sections are circular, smooth surface, and the umbrella rope is in time when guaranteeing that hanging umbrella opens, and gliding mass 5 is a T shape, and a safety plug jack 6 is arranged on the gliding mass, and a safety plug is arranged in the hole, pulls up safety plug during use and gets final product.A red copper conductive spacer 25 is fixed at gliding mass step place, and when umbrella hung, suspension ring drove on the gliding mass and move, and conductive spacer 25 is connected circuit, causes the spark delay system.

The spark delay system is positioned at below the switching system, is overflow by battery lead 24, igniter head 23, taper and presses hole 26 to form.

Fig. 2 is ignition system circuit figure, and battery 22 is placed in the battery case 8, and it provides igniter head 23 energy requirements, and the 1.5V battery just can make igniter head get angry usually, in order to guarantee reliability and long term storage, adopts two button cells to improve the igniting safety factor.Lead 24 length are 20--60cm, and outer attached insulation sleeve, conductive filament diameter are 12mm, steel or copperly all can.Conductive spacer 25 is bonded on the step of gliding mass 5, is connected with a conductive contact 7 with lead 24, and there is obvious convex closure at the position, contact, and when guaranteeing to move on the gliding mass, conductive spacer 25 reliably contacts with conductive contact 7, makes circuit communication.Ignite smoothly in order the to light a fire lead-in wire slowly of the little fuse cord of time-delay is fixed on igniter head and the little fuse cord of time-delay in the igniting pond 11 with military propellant powder, igniter head 23 military ignition charge that ignites during effect, and the little fuse cord of delaying time again ignites.In order to make time-delay accurately, the interior powder pressure of assurance cavity is kept in balance constant substantially, is provided with individual the overflowing of 2--5 in the loam cake 9 and presses hole 26, in igniting, overflow and press stopple ejected voluntarily by the gas pressure effect, discharge powder gases, fuse cord combustion speed is almost constant, and predetermined ignitor firing time is accurate.

Pressure system is positioned at the centre of fire extinguisher, by force pipe 14, antistatic backing 27, tighten plug 12, down tight plug 18, tube connector 13, fuse cord speed lead-in wire 16 and military propellant powder 15 are formed, the fuse cord speed go between 16 and military propellant powder 15 be filled in the force pipe.Pressure system is unique energy of this fire extinguisher, is the core of work done.It is engineering plastics that force pipe 14, upper-lower seal are tightly filled in material, and tube connector 13 internal diameters are the plastic flexible pipe of Φ 3--Φ 4mm, and length is 50-200mm.Longitudinal fracture groove 10-60 bar is established in the force pipe outside, in be coated with antistatic backing 27, the purposes of force pipe 14 is the military propellant powder mixtures of splendid attire, tight plug 12, the 18 tight plugs of upper-lower seal are at the two ends of force pipe, when working, pressure system can bear enough pressure, guarantee military propellant powder mixture burns simultaneity, avoid taking place half quick-fried phenomenon.The gas pressure equilibrium that produces during burning, force pipe is broken consistent, and the fragment that forms more than 80% less than 2 square centimeters, cause extinguishing chemical under the effect of gas pressure, force housing 17 fragmentations, adopt the fracture groove structures, so around just throwing to uniformly when broken because housing 17 is inboard.The effect of antistatic backing 27 is to prevent because of shaking, rubbing generation of static electricity is arranged in links such as assembling transportation, causes contingency to take place, and is one of safety measure.The tight plug 12,18 of upper-lower seal is used for fixing fuse cord, seals military propellant powder mixture, and it is reduced because of the moist combustibility that causes reduces, and cooperates with force pipe 14 and to bear certain powder pressure.The effect of tube connector 13 is that two time-delay fuse cords go between slowly and ignite fast lead-in wire of igniting of the fuse cord of military propellant powder mixture and 4--10 root chloracid potassium is fixed together; it is reliable to guarantee to pass fire; be convenient to the assembling of pressure system simultaneously, fuse cord has been played protective effect again.Military propellant powder 15 mixture Main Ingredients and Appearances have military little cigarette medicine, single basic particle medicine, 1# black powder etc., and it is to mix in proportion, and its combustion speed is fast, easily light, be not subjected to the restriction of environment temperature, the gas that the burning back generates is many, but 10 years combustibilities of long term storage are constant under air-proof condition; Store not spontaneous combustion under 80 ℃ of conditions of high temperature, do not decompose, physics and chemical stability are more stable, generate big pressure and gas when its effect is burning, by expansion, extinguishing chemical is thrown loose to certain limit.

Extinguishing chemical is alkaline dry powder, is filled in the housing, is used for starvation to reach the purpose that fights a fire; Base 20, go up the tight plug 12 of sealing, lower seal tightly fill in 18 and the material of loam cake 9 be plastics or bakelite, base locating hole 19 guarantees that the position of force pipe is placed in the middle and produces uniformity in enormous quantities; Base 20 is provided with energy and consumes groove 21, and effect is that the kinetic energy when consuming fire extinguisher and landing protects housing not to be damaged; Base 20, spiral shell buckle closure 10 and housing 17 form the volume that 4--50 rise, and are used for the splendid attire powder extinguishing agent, can bear certain pressure, improve the capacity for work of pressure system.

Claims

1. an air-drop formula dry powder extinguisher comprises powder extinguishing agent, housing (17), and it is characterized in that: it also comprises insurance system, switching system, pressure system, spark delay system; Insurance system is by the switch handle that is positioned at the fire extinguisher top (1), insurance dampproof cover (2) is formed, switch handle (1) links to each other with dampproof cover (2), dampproof cover is equipped with switching system in (2), switching system is by hanging umbrella (4), suspension ring (3), gliding mass (5) is formed, umbrella (4) and gliding mass (5) are hung in suspension ring (3) connection, the ignition timing system is positioned at below the switching system, by battery lead (24), igniter head (23), taper is overflow and is pressed hole (26) to form, pressure system is positioned at the centre of fire extinguisher, by force pipe (14), antistatic backing (27), tightly fill in (12 up and down, 18), tube connector (13), fuse cord speed lead-in wire (16) and military propellant powder (15) are formed, and fuse cord speed lead-in wire (16) and military propellant powder (15) are filled in the force pipe.

2. fire extinguisher according to claim 1 is characterized in that: force pipe (14) outside is the fracture groove, and fire extinguisher housing (17) is inboard to be the fracture groove.

3. fire extinguisher according to claim 1 is characterized in that: gliding mass (5) is a T shape, on a safety plug jack (6) is arranged, a bonding conductive spacer (25) on gliding mass (5) step.

4. fire extinguisher according to claim 1 is characterized in that: the military propellant powder in the force pipe (14) is to adopt military little cigarette medicine, 1# black powder, single-base powder formulated in proportion.

5. according to the described fire extinguisher of claim 1, it is characterized in that: force pipe (14) built-in antistatic backing (27).

6. according to the described fire extinguisher of claim 1, it is characterized in that: in the force pipe fuse cord speed lead-in wire (16) by the little fuse cord of time-delay, ignite the propellant powder fuse cord and fast lead-in wire form.

7. according to the described fire extinguisher of claim 1, it is characterized in that: housing (17) base (20) is provided with locating hole (19), and base (20) root edge is provided with energy and consumes groove (21).

8. according to the described fire extinguisher of claim 1, it is characterized in that: igniter head (23) and the little fuse cord of time-delay are fixed in the igniting pond (11) with propellant powder.

9. according to the described fire extinguisher of claim 1, it is characterized in that: having on the loam cake (9) overflows presses hole (26), and overflowing to press in the hole has stopple.