CN1089613C - Pneumatic fire-fighting fire extinguishing gun - Google Patents

Abstract

The present invention relates to a pneumatic fire-protection fire-extinguishing gun which mainly comprises a gun tube, a recoil cylinder, a sighting device, a trigger mechanism and a high-pressure air cylinder, wherein the tail end of the gun tube is provided with an air valve. A first buffer spring and a secondary buffer spring are arranged in the recoil cylinder. The trigger mechanism is mainly composed of a press hook, a press block, a pull rod, a bracket, a push rod and a trigger handle, wherein the end of the press hook has a bevel corresponding to the cone head bevel of the front end of a fire extinguishing bomb. The press hook is controlled by the trigger handle for release. The outer wall of the back end of the gun tube is provided with an air inlet pipe joint connected with the air source of compressed air through a hose. The present invention has the advantages of small size, safe use, long and high emitting distance, high hitting rate and wide application range, and the gun can be put on the shoulder of a single person for emission, and can be arranged on a bracket for emission.

Description

Pneumatic fire-fighting fire extinguishing gun

The present invention relates to the fire-fighting fire extinguishing equipment, concrete is a kind of Pneumatic fire-fighting fire extinguishing gun.

Along with the economic construction development, fire-fighting work becomes more important, the particularly fast development of skyscraper and large scale industry, commercial facility, have higher requirement to fire-fighting equipment, traditional tap and extinguishing chemical are applicable to closely fire extinguishing, and for far away, higher fire district, and the possible fire district of dangerous product blast, the fire fighter is difficult to close, this just needs the remote fire-proof apparatus that uses, and therefore the fire extinguishing big gun arises at the historic moment, in the prior art, the fire extinguishing big gun that has uses rocket fire-extinguishing bullet, costs an arm and a leg.Though the air pressure fire monitor is also arranged, the complex structure that has needs vehicle-mounted carrying.The range that has is nearer, can not satisfy the extinguishment requirement in high building, long distance fire district.

The purpose of this invention is to provide a kind of Pneumatic fire-fighting fire extinguishing gun, volume is little, can singlely bear emission, is power with the Compressed Gas, and is safe in utilization, penetrates apart from higher, far away, and it is bigger, applied widely to order accurate rate.

The object of the present invention is achieved like this:

A kind of Pneumatic fire-fighting fire extinguishing gun mainly is made up of gun tube, recoil cylinder, gunsight, firing lock and gas cylinder, it is characterized in that:

Gun tube has the cylindrical shell of hollow cylinder, its tail end is with the nut that has been threaded, this center, nut rear end is with the gland that has been threaded, in the gland central stepped air valve is housed, the cylinder of this air valve front end stretches into the back-moving spring center, this back-moving spring is contained in the gland big order-opening, the sealing bulge loop at described air valve middle part becomes to be sealed and matched with the terrace of gland big order-opening, have two transverse holes and centre bore connect to constitute air flue on the valve rod that passes hole, the little rank of gland at air valve rear portion, this two transverse holes distance suitably and when valve rod moves in the hole, little rank along gland with the gas in the gun tube by valve rod air flue and exterior;

The cylindrical shell of recoil cylinder is a hollow cylinder, and its front end is equipped with piston and fixes with transverse axis, and its middle part is equipped with dividing plate and is fixed by screw, and this dividing plate center has through hole to pass for the push rod of firing lock; Its rear end be equipped with the lining post and by the cover piping support, this sleeve pipe is by horizontal holder axle location, the axial elongated slot that this holder axle is contained in cylindrical shell is interior removable, buffer spring is housed in the cylindrical shell between piston and dividing plate one time, in the cylindrical shell between the post secondary buffer spring is housed at dividing plate and lining, at the tail end of cylindrical shell buttstrap is housed, the upper end and the sleeve pipe of this buttstrap are affixed, the lower end of this buttstrap becomes Elastic Contact by steel ball with cylindrical shell, below the front end of cylindrical shell lever is housed;

Firing lock mainly is made up of pressure hook, briquetting, pull bar, support, push rod and percussion handle; The end of pressure hook has the conehead inclined-plane of inclined-plane and fire extinguisher bomb front end corresponding; This pressure hook middle part is articulated in the bearing that is fixed on the gun tube front end with bearing pin, the rear end of pressure hook is pressed on the telescopic briquetting, this briquetting is connected in pull bar, it is spacing by the support plate that is fixed in gun tube at the pull bar front end sleeve compression spring to be housed, described briquetting also is limited in stop screw and reverses the spring mandrel, be set with torsion spring on this mandrel, the upper end of this torsion spring is pressed in the upper back of pressure hook; The rear end of described pull bar is connected in joint, this joint is articulated in the upper end of support with bearing pin, this mid-stent is articulated in gun barrel with bearing pin, the support bottom contacts in push rod, this push rod passes the dividing plate in the recoil cylinder, in the mating holes of push rod and dividing plate back-moving spring is housed, the bottom of push rod contacts in the galianconism of percussion handle, this percussion handle is the curved lever of being made up of long-armed and galianconism, be articulated on the support that is fixed on recoil cylinder, the long-armed sagging trigger-like that is of this push rod is provided with the trigger backplate that is fixed in recoil cylinder at this long-armed rear;

Described gun barrel rear end downside is connected with "T"-shaped slide rail, and this slide rail penetrates the "T"-shaped chute that is fixed in recoil cylinder and becomes slidably to connect, and described gun barrel rear end outer wall is equipped with the air inlet pipe joint, and this pipe joint communicates with compressed-air actuated source of the gas by flexible pipe.

The present invention has following actively useful effect:

1, volume is little, and is in light weight, and full big gun heavily is no more than 25kg, is adapted to the fire fighter one man operation;

2, easy to use, this fire extinguishing big gun can be suitable for any place, as long as 1.5m is arranged ²But the above just operation issue of area can be born, portable, also can add support, also can be erected on the fire fighting truck, and mobility and selectivity are good;

3, safe in utilization, the power that this fire extinguishing bubble uses is Compressed Gas, compares with rocket fire-extinguishing bullet, does not have the hidden danger of causing danger once more, and is equipped with advanced retiring from active military service and the buttstrap device, the launching crew is had 100% safety coefficient;

4, far firing range, under general condition, long-range reaching more than the 120m, vertical height can reach more than 60 meters;

5, widely applicable, it is applicable to skyscraper, forest lack of water and do not have the pool, reaches the interior fire extinguishing purpose of limited range that the people can't arrive;

6, the accurate rate height of life, this fire extinguishing big gun is in height 70m and long-range 130m, and ordering accurate rate is more than 90%.

Now in conjunction with the accompanying drawings with preferred embodiment:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is the structural representation of gun tube afterbody nut air valve among Fig. 1;

Fig. 4 is the structural representation of buttstrap among Fig. 1;

Fig. 5 is the structural representation of recoil cylinder among Fig. 1;

Fig. 6 is the B-B cutaway view of Fig. 5;

Fig. 7 is the C-C cutaway view of Fig. 5;

Fig. 8 is a kind of embodiment of the compressed gas source that uses of the present invention;

Fig. 9 is the structural representation of firing lock among Fig. 1;

Figure 10 is the vertical view of Fig. 9, has only drawn the front end part.

Accompanying drawing number

1. gun tube 101. cylindrical shells 102. nuts

103. gland 104. air valves 1041. cylinders

1042. sealing bulge loop 1043. valve rods 1044. horizontal pores

1045. horizontal pore 1046. central airway 105. back-moving springs

106. pushing cover 107. sealing gaskets 108. air inlet pipe joints

109.T type slide rail

2. recoil cylinder 201. cylindrical shells 202. pistons

203. transverse axis 204. dividing plates 205. lining posts

206. sleeve pipe 207. holder axles 208. elongated slots

209. buffer spring 210. secondary buffer springs 211. buttstraps

212. steel ball 213. lever 214.T type chutes

215. screw

3. gunsight

4. firing lock 401. pressure hooks 402. briquettings

403. pull bar 404. supports 405. push rods

406. percussion handle 4061. galianconism 4062. long-armed (trigger)

407. bearing pin 408. bearings 409. compression reseting springs

410. support plate 411. stop screws

412. reverse spring mandrel 413. torsion springs 414. joints

415. bearing pin 416. rack pin shafts 417. back-moving springs

418. support 419. trigger backplates 420. guard shields

5. compressed air gas source 501. gas cylinders 502. valves

503. Pressure gauge 6. fire extinguisher bombs

Please refer to Fig. 1, Pneumatic fire-fighting fire extinguishing gun of the present invention mainly is made up of gun tube 1, recoil cylinder 2, gunsight 3, firing lock 4 and gas cylinder 5;

Please be simultaneously with reference to Fig. 3, gun tube 1 has the cylindrical shell 101 of hollow cylinder, its tail end is with the nut 102 that has been threaded, this center, nut rear end is with the gland 103 that has been threaded, air valve 104 is housed in the gland central stepped, the cylinder 1041 of this air valve front end stretches into back-moving spring 105 centers, this back-moving spring 105 is contained in the big order-opening of gland 103, the sealing bulge loop 1042 at described air valve middle part becomes to be sealed and matched with the terrace of gland big order-opening, on the valve rod 1043 that passes hole, the little rank of gland at air valve 104 rear portions two transverse holes 1044 are arranged, 1045 connect with centre bore 1046 and to constitute air flues, this two transverse holes distance suitably and when valve rod 1043 moves in hole, gland 103 little rank with the gas in the gun tube by valve rod air flue and exterior;

Please refer to Fig. 5 Fig. 6 Fig. 7, the cylindrical shell 201 of recoil cylinder 2 is a hollow cylinder, and its front end is equipped with piston 202 and fixing with transverse axis 203, and dividing plate 204 and fixing by screw 215 is equipped with at its middle part, and this dividing plate center has through hole to pass for the push rod 405 of firing lock; Its rear end is equipped with lining post 205 and is supported by sleeve pipe 206, this sleeve pipe 206 is by horizontal holder axle 207 location, this holder axle is contained in the axial elongated slot 208 of cylindrical shell removable, buffer spring 209 is housed one time in the cylindrical shell between piston 202 and dividing plate 204, in the cylindrical shell between dividing plate 204 and lining post 205 secondary buffer spring 210 is housed, tail end at cylindrical shell is equipped with buttstrap 211, the upper end of this buttstrap and sleeve pipe 206 are affixed, the lower end of this buttstrap becomes Elastic Contact to see Fig. 4 by steel ball 212 with cylindrical shell, and lever 213 is housed below the front end of cylindrical shell;

Please refer to Fig. 9 Figure 10 and Fig. 5, firing lock 4 mainly is made up of pressure hook 401, briquetting 402, pull bar 403, support 404, push rod 405 and percussion handle 406; The end of pressure hook 401 has the conehead inclined-plane of inclined-plane and fire extinguisher bomb 6 front ends corresponding; This pressure hook middle part is articulated in the bearing 408 that is fixed on the gun tube front end with bearing pin 407, the rear end of pressure hook is pressed on the telescopic briquetting 402, this briquetting 402 is connected in pull bar 403, at the pull bar front end sleeve compression spring 409 is housed, spacing by the support plate 410 that is fixed in gun tube, described briquetting also is limited in stop screw 411 and reverses spring mandrel 412, is set with torsion spring 413 on this mandrel 412, and the upper end of this torsion spring 413 is pressed in the upper back of pressure hook 401; The rear end of described pull bar 403 is connected in joint 414, this joint is articulated in the upper end of support 404 with bearing pin 415, these support 404 middle parts are articulated in gun barrel with bearing pin 416, support 416 bottoms contact in push rod 405 sees Fig. 5, this push rod 405 passes the dividing plate 204 in the recoil cylinder, back-moving spring 417 is housed in the mating holes of push rod and dividing plate, the bottom of push rod 405 contacts in the galianconism 4061 of percussion handle 406, this percussion handle is by long-armed 4062 and the curved lever formed of galianconism 4061, be articulated on the support that is fixed on recoil cylinder, this push rod long-armed 4062 sagging trigger-like that are are provided with the trigger backplate 419 that is fixed in recoil cylinder at this rear of long-armed 4062;

Please refer to Fig. 7 Fig. 9, described gun barrel rear end downside is connected with "T"-shaped slide rail 109, this slide rail penetrates the "T"-shaped chute that is fixed in recoil cylinder and slidably connects for 214 one-tenth, please refer to Fig. 2 Fig. 8, described gun barrel rear end outer wall is equipped with air inlet pipe joint 108, and this pipe joint communicates with compressed-air actuated source of the gas 5 by flexible pipe.

Described gunsight 3 can adopt the existing structure of firearms, and this specification does not describe in detail.

Operation principle of the present invention:

Be filled into fire extinguisher bomb 6 by gun barrel 1 front end during work, dress extinguishing chemical in this fire extinguisher bomb contacts the front end inclined-plane of the pressure hook 401 of firing lock with the front end conehead inclined-plane of fire extinguisher bomb 6, and the pressure hook rear end is compressed by torsion spring 413 by briquetting 402 supports, upper end.Open source of the gas 5, compressed air enters gun barrel 1 by pipe joint 108, and compressed-air actuated pressure acts on the afterbody of fire extinguisher bomb, enters armed state.Pull the trigger 4062 of percussion handle during emission, by push rod 405, support 404 and the pulling pull bar 403, briquetting 402 is pulled out for 401 times from pressure hook, pressure hook 401 upwards lifts on its front end inclined-plane under torsion spring 413 effects, and the fire extinguisher bomb front end is released, under the compressed air thrust of high pressure, fire extinguisher bomb is launched forward, and its kick is subdued by first and second buffer spring 209,210 in the recoil cylinder.

When fire extinguisher bomb is in the armed state of gas pressure, if need the cancellation emission, can close source of the gas 5 earlier, press pushing cover 106 with hand then, promote air valve 104 and move forward, the compressed air in the gun barrel releases in the air flue 1044,1046,1045 of air valve 104.

Described source of the gas 5 can be backpack, comprises that gas cylinder 501, valve 502, Pressure gauge 503 see Fig. 8, joins by the air inlet pipe joint 108 on flexible pipe and the gun tube cylindrical shell 101; Also can use other forms of source of the gas during enforcement.

Can bear when the present invention operates, portable, also can add support, also can be erected on the fire fighting truck.

Described fire extinguisher bomb is a prior art.

Claims (1)

1, a kind of Pneumatic fire-fighting fire extinguishing gun mainly is made up of gun tube (1), recoil cylinder (2), gunsight (3), firing lock (4) and gas cylinder (5); It is characterized in that:

Gun tube (1) has the cylindrical shell (101) of hollow cylinder, its tail end is with the nut that has been threaded (102), this center, nut rear end is with the gland that has been threaded (103), air valve (104) is housed in the gland central stepped, the cylinder of this air valve front end (1041) stretches into back-moving spring (105) center, this back-moving spring (105) is contained in the big order-opening of gland (103), the sealing bulge loop (1042) at described air valve middle part becomes to be sealed and matched with the terrace of gland big order-opening, on the valve rod (1043) that passes hole, the little rank of gland at air valve (104) rear portion two transverse holes (1044) are arranged, (1045) connect to constitute air flue with centre bore (1046), this two transverse holes distance suitably and when valve rod (1043) moves in hole, the little rank of gland (103) with the gas in the gun tube by valve rod air flue and exterior;

The cylindrical shell (201) of recoil cylinder (2) is a hollow cylinder, and its front end is equipped with piston (202) and fixing with transverse axis (203), and dividing plate (204) and fixing by screw (215) is equipped with at its middle part, and this dividing plate center has through hole to pass for the push rod (405) of firing lock; Its rear end is equipped with lining post (205) and is supported by sleeve pipe (206), this sleeve pipe (206) is by horizontal holder axle (207) location, the axial elongated slot (208) that this holder axle is contained in cylindrical shell is interior removable, in the cylindrical shell between piston (202) and dividing plate (204) buffer spring (209) is housed, in the cylindrical shell between dividing plate (204) and lining post (205) secondary buffer spring (210) is housed, tail end at cylindrical shell is equipped with buttstrap (211), the upper end of this buttstrap and sleeve pipe (206) are affixed, the lower end of this buttstrap becomes Elastic Contact by steel ball (212) with cylindrical shell, and lever (213) is housed below the front end of cylindrical shell;

Firing lock (4) mainly is made up of pressure hook (401), briquetting (402), pull bar (403), support (404), push rod (405) and percussion handle (406); The end of pressure hook (401) has the conehead inclined-plane of inclined-plane and fire extinguisher bomb (6) front end corresponding; This pressure hook middle part is articulated in the bearing (408) that is fixed on the gun tube front end with bearing pin (407), the rear end of pressure hook is pressed on the telescopic briquetting (402), this briquetting (402) is connected in pull bar (403), at the pull bar front end sleeve compression spring (409) is housed, spacing by the support plate that is fixed in gun tube (410), described briquetting also is limited in stop screw (411) and reverses spring mandrel (412), be set with torsion spring (413) on this mandrel (412), the upper end of this torsion spring (413) is pressed in the upper back of pressure hook (401); The rear end of described pull bar (403) is connected in joint (414), this joint is articulated in the upper end of support (404) with bearing pin (415), this support (404) middle part is articulated in gun barrel with bearing pin (416), support (416) bottom contacts in push rod (405), this push rod (405) passes the dividing plate (204) in the recoil cylinder, back-moving spring (417) is housed in the mating holes of push rod and dividing plate, the bottom of push rod (405) contacts in the galianconism (4061) of percussion handle (406), this percussion handle is the curved lever of being made up of long-armed (4062) and galianconism (4061), be articulated on the support that is fixed on recoil cylinder, the sagging trigger-like that is of this push rod long-armed (4062) is provided with the trigger backplate (419) that is fixed in recoil cylinder at the rear of these long-armed (4062);

Described gun barrel rear end downside is connected with "T"-shaped slide rail (109), and this slide rail penetrates the "T"-shaped chute (214) that is fixed in recoil cylinder and becomes slidably to connect;

Described gun barrel rear end outer wall is equipped with air inlet pipe joint (108), and this pipe joint communicates with compressed-air actuated source of the gas (5) by flexible pipe.

Images