CN2468514Y - Portable and pulsation type jetting fire extinguishing gun - Google Patents

Abstract

The utility model relates to a portable pulse spraying counter-fire gun, which is characterized in that: an extinguishing agent with pressure enters into extinguishing agent cavity to drive a piston move afterwards; the pressure gas enters into a cylinder to push the piston move forward by pulling a trigger; when the pressure of extinguishing agent exceeds the enactment pressure of an pressure-adjusting bolt, a nozzle is clashed open and sprayed out; an air intake is closed by loosening the trigger; when the piston move forwards and contact a relief valve, a relief hole is opened and the pressure gas in the cylinder is taken off; when the piston move afterwards, the gas relief hole is closed and the inlet of the extinguishing agent is opened. Then a pulse type spray is formed by the repeat. Only a little extinguishing agent is needed to extinguish the fire in a short time, and the utility model is convenient to be used.

Description

A kind of portable impulse jet fire gun

The utility model belongs to fire-fighting fire extinguishing equipment technical field, is specifically related to mechanical pulsed extinguishing device.

Existing fire-extinguishing gun generally takes the long-time continuous spray fire extinguishing agent to stamp out a fire with the critical value that reaches fire extinguishing, this not only needs to consume a large amount of extinguishing chemicals, and bring action, inconvenient operation because of carrying a large amount of extinguishing chemicals, the fire extinguishing needs that can not maneuverability ground adapt to various fire hazard environments, fire extinguishing is renderd a service low, also can cause severe contamination to environment.

Though in recent years both at home and abroad relevant for the exploratory theoretical research of adopting fine mist fire-fighting mechanism, and the report of some experimental studies arranged, but on market, yet there are no the Related product that adopts fine mist fire-fighting, and the shortcoming of continuous injection fire extinguishing does not obtain the essence change.

By retrieval, existing portable fire-extinguishing gun has only and adopts powder extinguishing agent, and not seeing has the portable fire-extinguishing gun that adopts liquid extinguisher, and more not see have the report that adopts the impulse jet type fire gun.

The utility model provides a kind of portable impulse jet fire gun, with its fire-fighting efficiency height, can save extinguishing chemical greatly, and easy to use, flexible.

Accompanying drawing 1 is the structural principle schematic diagram of the portable impulse jet fire gun of the utility model.

This kind Portable pulse ejecting extinguishing rifle is characterized in that passing through pressure by fire extinguishing rifle rifle body (1) and extinguishing chemical voltage supply bag (2) Gas delivery tube (32), extinguishing chemical transfer tube (33) connect and compose; The rifle core (5) of fire extinguishing rifle is the cylinder of a hollow, the middle part If cylinder (25), in-built front piston (20) and rear piston (21) are the oily chamber (7) that is marked with lubricating oil between the two-piston; Cylinder (25) Valve seat (27) is housed in the inner chamber at rear portion, and the spool (28) that is set with spring (29) is installed in the valve seat (27); Trigger (30) with With the turnable pin-connect of rivet, pacify with pin (3) by the upper end of trigger (30) on the crosspoint for the valve rod (31) of spool (28) rear end Be contained on the fire extinguishing rifle rifle core (5); Wall at rifle core (5) middle part, valve seat (27) front end was provided with by leading to that inside check valve consists of To the interior pressed gas air inlet (26) of cylinder (25), this air inlet (26) is positioned at spool (28) front end when trigger (30) is decontroled Can be with its shutoff and the position that air inlet (26) can be opened when pulling trigger (30); At the gas near valve seat (27) front end Casing wall is provided be used to the protruding shoulder (6) that stops piston; Gas release duct entrance (24) is opened and is being arranged in cylinder (25) near protruding shoulder (6) on the cylinder wall of front, and by the gas release duct (23) of opening in wall, through unloading pressure valve (19), be communicated to rifle core (5) The relief port of front end (14); Be connected with fire extinguishing rifle nozzle (12) behind the import end pocketed springs (10) of extinguishing chemical outlet valve (11), Use protecgulum (15) encapsulation to be fixed on the front end of rifle core (5), the port of export of extinguishing chemical outlet valve (11) is equipped with regulator bolts (13) again; Be extinguishing chemical chamber (8) between the import end of extinguishing chemical outlet valve (11) and the front piston (20), extinguishing chemical chamber (8) the most anterior in What be equipped with on the wall that the touching control high pressure gas release duct (23) of piston (20) before utilizing opens and closes unloads pressure valve (19), and this unloads pressure valve (19) be installed in release duct (23) behind the cylinder pocketed springs (18) by in the inboard wall groove of position, unload pressure valve (19) cylinder The tail end of protrusion more than cylinder inner wall is high inclined-plane (16) before rear the hanging down, and has the tail end inclined-plane that protrudes when cylinder on the cylinder The release valve opening road (17) that release duct (23) can be connected when all being pressed into the cylinder inner wall groove by front piston (20), and current Piston (20) retreats and removes the post tail inclined-plane (16) that unloads pressure valve (19), unloads pressure valve (19) cylinder and ejected by spring (18) and make tail end When protruding from cylinder inner wall, this release valve opening road (17) is shifted and gas release duct (23) is closed; Upper at rifle core (5) In near unloading on the wall in pressure valve (19) extinguishing chemical chamber (8) afterwards, be provided with the extinguishing chemical import (9) that is consisted of by inside check valve;

Extinguishing chemical voltage supply bag (2) comprises extinguishing chemical bottle (40) and pressure cylinder (41) composition; Switch (35) is housed on the pressure cylinder (41), and a road of switch (35) is connected with the air inlet (26) of fire gun (1) by pressed gas transfer tube (32) through Pressure gauge (34); Another road is connected with space more than the extinguishing chemical liquid level in pressure limiting valve (37) is connected to extinguishing chemical bottle (40) by transfer tube (36); Lower ending opening extends the transfer tube (42) of extinguishing chemical bottle (40) bottom, and its upper end is connected with the extinguishing chemical import (9) of fire gun (1) through switch (39), Pressure gauge (38) and extinguishing chemical transfer tube (33).

During use, open pressure cylinder switch 35 in the extinguishing chemical voltage supply bag 2 earlier, be adjusted to Pressure gauge 34 and show suitable pressure (as 25 bar pressures), open switch 39 then, regulate pressure limiting valve 37 to Pressure gauge 38 and show suitable pressure (as 6 bar pressures); Extinguishing chemical in the extinguishing chemical bottle 40 is under the pressure effect that pressure cylinder 41 provides, through transfer tube 42, Pressure gauge 38, transfer tube 33 to the extinguishing chemical import 9 of fire gun 1, enter extinguishing chemical chamber 8, promote piston 20 and then promote piston 21 to move backward, fill with extinguishing chemical, back piston 21 arrival convex shoulders 6 up to extinguishing chemical cavity 8; Pull trigger 30, valve rod 31 is being with spool 28 to move down and is being compressed spring 29 and pressed gas air inlet 26 is opened, the pressed gas that is provided by pressure cylinder 41 enters cylinder 25 by transfer tube 32 from air inlet 26, promoting back piston 21 moves forward, thereby promoting secondary piston 20 travels forward, extinguishing chemical in the extinguishing chemical cavity 8 is compressed and the pressure rising, when the pressure of extinguishing chemical surpasses the controlled pressure of the extinguishing chemical outlet valve of being set by regulator bolts 13 adjustings 11, extinguishing chemical outlet valve 11 is washed open rapidly, and extinguishing chemical ejects from fire gun nozzle 12; When extinguishing chemical begins to spray, can unclamp trigger 30, compressed spring 29 resiliences make to move on the spool 28 closes air inlet 26; Along with the injection of extinguishing chemical, the pressure in the extinguishing chemical chamber 8 reduce, and secondary piston 20 continues reach and bruising is protruded tail end inclined-plane 16 more than cylinder inner wall to pressure-relief valve 19 cylinders, and and then compression spring 10; Spring 18 was compressed when cylinder tail end inclined-plane 16 was pressed into the cylinder inner wall groove by secondary piston 20, it is that pressure-relief valve 19 is opened that release duct 23 is connected in pressure-relief valve duct 17, and the gases at high pressure in the cylinder 25 are from release duct inlet 24, lay down by pressure-relief valve 19 to the relief port 14 of rifle core 5 front ends through release duct 23; Along with the pressure in the cylinder 25 reduces, be subjected to the rebound effect of spring 10 simultaneously, secondary piston 20 moves backward, when secondary piston 20 retreats when making tail end protrude from cylinder inner wall and the post tail inclined-plane 16, pressure-relief valve 19 cylinders that leave pressure-relief valve 19 are ejected by spring 18, the displacement in pressure-relief valve duct 17 is closed gas release duct 23; When secondary piston 20 moved to above extinguishing chemical import 9 backward, extinguishing chemical import 9 promptly was opened, and extinguishing chemical enters extinguishing chemical cavity 8 via extinguishing chemical import 9 once more, had so just finished the pulsatile once formula and had sprayed.

Repeat like this later on, the extinguishing chemical that forms many pulseds sprays.

Pulsing jet is a kind of interruption jet of noncontinuity, and the image of the jet of this discontinuous is similar to bullet very much, and it can be the form that cumulative puts suddenly and produces.Owing in several milliseconds time, extinguishing chemical is penetrated with pulse mode, the extinguishing chemical band very big kinetic energy, with very high speed directive fire kitchen range, penetrate fireball, only need a spot of extinguishing chemical with its fire extinguishing, can extinguish the blaze in a short period of time, not only reduce the fire extinguishing cost, and significantly reduce pollution environment; Because impulse jet fire-fighting efficiency height, foamite amount is few, so can make the portable liquid pulse ejecting extinguishing rifle of wearing extinguishing chemical voltage supply bag, easy to use, flexible, be applicable to the small size fire that puts out in the room, oil fire, forest fires, and put out automobile and rubber tyre fire.

The portable impulse jet fire gun of the utility model can be applicable to the most liquid extinguishers that comprise water.When adopting water to be extinguishing chemical, owing to adopt higher pressure to produce the water column that noncontinuity pulse water smoke has replaced the big flow of common spray fire gun, the pulse fire gun does not use the spray painting head, the generation of thin water smoke is to lean on the collision of air and hydrone to realize, does not therefore have the blockage problem of existing spray painting head fire extinguisher; Simultaneously, the effect of rapid refrigeration and isolated burning object place oxygen is played in tiny water smoke pearl evaporation, reduce the temperature on comburant surface, thereby reach the purpose of fire extinguishing, the tap continuous injection fire extinguishing that the pulse mist fire-fighting of this high-pressure low-flow is commonly used can be economized on water more than 90%.In addition, existing solid stream of water extinguishing method can not adopt because of the safety problem of the meeting conduction fire to charging zone, and the pulsing jet water smoke of this noncontinuity that the utility model produces can not conduct electricity, so also can be used for the fire extinguishing of charging zone fire.

Specify embodiment of the present utility model below in conjunction with accompanying drawing.

Embodiment 1:

The portable impulse jet fire gun of present embodiment is connected and composed by fire gun rifle body 1 and extinguishing chemical voltage supply bag 2 transfer tube 32,33 by compression resistance; The rifle core 5 of fire gun is made with the steel cylinder of hollow, interior dress secondary piston 20 and back piston 21, and the gap between the two-piston is an oil pocket 7 of filling with lubricating oil; In the inner chamber at cylinder 25 rear portions valve seat 27 is housed, the spool 28 of pocketed springs 29 is installed in the valve seat 27; With the turnable pin-connect of rivet, the upper end of trigger 30 is installed on the fire gun rifle core 5 with pin 3 valve rod 31 of trigger 30 and spool 28 rear ends on the crosspoint; On the wall of rifle core 5 middle parts, valve seat 27 forward positions, install as air inlet 26 to internal check valve, this air inlet 26 is positioned at that when trigger 30 is decontroled spool 28 front ends can be blocked it and air inlet 26 can be opened when pulling trigger 30 position; Be provided with the convex shoulder 6 that is used to stop piston near on the cylinder wall of valve seat 27 front ends; Near opening gas release duct inlet 24 on cylinder 25 walls of convex shoulder 6 anterior locations, to the wall between the relief port 14 of rifle core 5 front ends, open a gas release duct 23 through pressure-relief valve 19; Entrance point pocketed springs 10 backs of extinguishing chemical outlet valve 11 are connected with fire gun nozzle 12, are fixed on the front end of rifle core 5 again with protecgulum 15 encapsulation, and the port of export of extinguishing chemical outlet valve 11 is installed regulator bolts 13, is used to regulate suitable extinguishing chemical expulsion pressure; The pressure-relief valve 19 of touching control gases at high pressure release duct 23 switchings that utilize secondary piston 20 is housed on the inwall of extinguishing chemical chamber 8 forefronts, be installed in behind the cylinder pocketed springs 18 of this pressure-relief valve 19 in the inboard wall groove through the position in release duct 23, the tail end that pressure-relief valve 19 cylinders protrude more than cylinder inner wall is high inclined-plane 16 before hang down a back, have the pressure-relief valve duct 17 that when the tail end inclined-plane that cylinder protrudes all is pressed into the cylinder inner wall groove by secondary piston 20, release duct 23 can be connected on the cylinder, retreat the post tail inclined-plane 16 of removing pressure-relief valve 19 and work as secondary piston 20, when pressure-relief valve 19 cylinders are made tail end protrude from cylinder inner wall by spring 18 ejections, this pressure-relief valve duct 17 is shifted gas release duct 23 is closed; On rifle core 5, be positioned on the position after 8 front portions, extinguishing chemical chamber, the pressure-relief valve 19, be provided with by the extinguishing chemical import 9 that constitutes to internal check valve.

Two sling swivels 4 using for braces can be installed in the rear and front end of the top of rifle body 1, and rifle body 1 inferoanterior can be installed the handle 21 for grasped.

Extinguishing chemical voltage supply bag 2 comprises extinguishing chemical bottle 40 and pressure cylinder 41 compositions, pressure cylinder switch 35 is housed on the pressure cylinder 41, one port of export of switch 35 is connected with the entrance point of Pressure gauge 34, and the port of export of Pressure gauge 34 is connected with the air inlet 26 of fire gun 1 by withstand voltage transfer tube 32; Another port of export of switch 35 is by the top of withstand voltage transfer tube 36 extinguishing chemical liquid level in pressure limiting valve 37 is connected to extinguishing chemical bottle 40; Extinguishing chemical transfer tube 42 is installed in the extinguishing chemical bottle 40, after the import that its lower port is in the top of bottom, transfer tube 42 of extinguishing chemical liquid and gauge tap 39 is connected, is connected with the extinguishing chemical import 9 of fire gun 1 by withstand voltage transfer tube 33 through Pressure gauge 38.Whole extinguishing chemical voltage supply bag 2 is contained in one and can carries on the back at back or carry on the arm in piggyback the knapsack.

When present embodiment makes water as extinguishing chemical, the extinguishing chemical voltage supply bag 2 of a Backpack type can one 12 liters bucket as extinguishing chemical bottle 40, the gas cylinder of 2 liters of pressure cylinder 41 employing capacity, withstand voltage 300 crust, can be filled with compressed air in advance in the gas cylinder, but also inflated with nitrogen or other anti-flammability gas, by by-pass cock 35 and pressure-regulating valve 37, provide 6 pressure that cling to through transfer tube to bucket, the pressure of 25 crust are provided to fire gun.

During fire extinguishing, extinguishing chemical in the extinguishing chemical voltage supply bag 2 in the extinguishing chemical bottle 40 is under the 6 bar pressure pressure effects that pressure cylinder 41 provides, through transfer tube 42, Pressure gauge 38, transfer tube 33, when entering extinguishing chemical chamber 8 by extinguishing chemical import 9, promote piston 20 and then promote piston 21 to move backward, up to extinguishing chemical cavity 8 fill with extinguishing chemical, back piston 21 retreats to convex shoulder 6; Pull trigger 30, valve rod 31 is being with spool 28 to move down and air inlet 26 is opened and is being compressed spring 29, provide by pressure cylinder 41 and to have 25 bar pressure air and enter cylinder 25 from air inlet 26 by transfer tube 32, promoting back piston 21 moves forward, thereby promoting secondary piston 20 travels forward, extinguishing chemical in the extinguishing chemical cavity 8 is compressed, and extinguishing chemical can not reflux and form high pressure; When the pressure of extinguishing chemical surpassed the controlled pressure of the extinguishing chemical outlet valve of being set by regulator bolts 13 adjustings 11, extinguishing chemical outlet valve 11 can be opened in the extremely short time, the water smoke of ejection 30-150 μ m, and speed can reach 120-200m/s.When the extinguishing chemical in the extinguishing chemical chamber has sprayed soon, unclamp trigger 30, compressed spring 29 resiliences make to move on the spool 28 closes air inlet 26; Pressure in course of injection in the extinguishing chemical chamber 8 reduces, secondary piston 20 reach and bruising high inclined-plane 16 before pressure-relief valve 19 tail ends back low, spring 18 was compressed when pressure-relief valve 19 was opened, pressure-relief valve duct 17 is connected with release duct 23, gases at high pressure in the cylinder 25 14 are laid down from the relief port by pressure-relief valve 19 through release duct 23, simultaneously secondary piston 20 compression springs 10; Under the rebound effect of spring 10, secondary piston 20 moves backward, when secondary piston 20 retreats that post tail inclined-plane 16, pressure-relief valve 19 cylinders of removing pressure-relief valve 19 are ejected by spring 18 and when making tail end protrude from cylinder inner wall, this pressure-relief valve duct 17 is shifted and gas release duct 23 is closed; When secondary piston 20 moved to above extinguishing chemical import 9 backward, extinguishing chemical import 9 promptly was opened, and extinguishing chemical enters extinguishing chemical cavity 8 via extinguishing chemical import 9 once more, had finished the pulsatile once formula and had sprayed.

This portable impulse jet fire gun of present embodiment, every pulse can be launched the extinguishing chemical that 0.25-1 rises, and range is 1-15m, and is easy to use, flexible, and be all very effective to indoor outer fire extinguishing.Be specially adapted to put out the small size fire in the room, oil fire, forest fires, and put out automobile and rubber tyre fire.

Claims (1)

1, a kind of portable impulse jet fire gun is characterized in that being connected and composed by pressed gas transfer tube (32), extinguishing chemical transfer tube (33) by fire gun rifle body (1) and extinguishing chemical voltage supply bag (2); The rifle core (5) of fire gun is the cylinder of a hollow, and cylinder (25) is established at the middle part, and interior dress secondary piston (20) and back piston (21) are the oil pocket (7) that is marked with lubricating oil between the two-piston; In the inner chamber at cylinder (25) rear portion valve seat (27) is housed, the spool (28) that is set with spring (29) is installed in the valve seat (27); With the turnable pin-connect of rivet, the upper end of trigger (30) is installed on the fire gun rifle core (5) with pin (3) valve rod (31) of trigger (30) and spool (28) rear end on the crosspoint; Be provided with on the wall of rifle core (5) middle part, valve seat (27) front end by the pressed gas air inlet (26) in the cylinder (25) of leading to that constitutes to internal check valve, this air inlet (26) is positioned at when trigger (30) is decontroled spool (28) front end can be with its shutoff and the position that air inlet (26) can be opened when pulling trigger (30); Be provided with the convex shoulder (6) that is used to stop piston near on the cylinder wall of valve seat (27) front end; Gas release duct inlet (24) is opened and is being arranged in cylinder (25) near on the cylinder wall of convex shoulder (6) front, and by the gas release duct (23) of opening in wall, through pressure-relief valve (19), is communicated to the relief port (14) of rifle core (5) front end; Entrance point pocketed springs (10) back of extinguishing chemical outlet valve (11) is connected with fire gun nozzle (12), uses protecgulum (15) encapsulation to be fixed on the front end of rifle core (5) again, and the port of export of extinguishing chemical outlet valve (11) is equipped with regulator bolts (13); Be extinguishing chemical chamber (8) between the entrance point of extinguishing chemical outlet valve (11) and the secondary piston (20), the pressure-relief valve (19) of touching control gases at high pressure release ducts (23) switching that utilizes secondary piston (20) is housed on the inwall of extinguishing chemical chamber (8) forefront, be installed in release duct (23) behind the cylinder pocketed springs (18) of this pressure-relief valve (19) by in the inboard wall groove of position, the tail end that pressure-relief valve (19) cylinder protrudes more than cylinder inner wall is high inclined-plane (16) before hang down a back, have the pressure-relief valve duct (17) that when the tail end inclined-plane that cylinder protrudes all is pressed into the cylinder inner wall groove by secondary piston (20), release duct (23) can be connected on the cylinder, retreat the post tail inclined-plane (16) of removing pressure-relief valve (19) and work as secondary piston (20), when pressure-relief valve (19) cylinder is made tail end protrude from cylinder inner wall by spring (18) ejection, this pressure-relief valve duct (17) is shifted and gas release duct (23) is closed; Being positioned on the rifle core (5), be provided with by the extinguishing chemical import (9) that constitutes to internal check valve near on the wall in pressure-relief valve (19) extinguishing chemical chamber (8) afterwards;

Extinguishing chemical voltage supply bag (2) comprises extinguishing chemical bottle (40) and pressure cylinder (41) composition; Switch (35) is housed on the pressure cylinder (41), and a road of switch (35) is connected with the air inlet (26) of fire gun (1) by pressed gas transfer tube (32) through Pressure gauge (34); Another road is connected with space more than the extinguishing chemical liquid level in pressure limiting valve (37) is connected to extinguishing chemical bottle (40) by transfer tube (36); Lower ending opening extends the transfer tube (42) of extinguishing chemical bottle (40) bottom, and its upper end is connected with the extinguishing chemical import (9) of fire gun (1) through switch (39), Pressure gauge (38) and extinguishing chemical transfer tube (33).

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