CN2113791U - Portable fire extinguisher - Google Patents

Abstract

The utility model relates to a portable fire extinguisher, which is suitable for the specification of one to ten kg and is capable of filling with various gases, liquids and solid dry powders. The utility model is characterized in that a head part adopts a thin wall cup valve installed in the floating mode, a group of seal components, a tubular valve rod for leading out the fire fighting agent and a cup valve mechanism composed of bends. The utility model has the advantages that the utility model does not use the copper material, a plurality of parts are thin sheet punching parts or injection moulding parts, the products are produced in the technology of punching and injection moulding, the production efficiency can be increased in the duplication mode and the utility model is low in cost, saving in copper and the energy and reduced in pollution. The cup valve is a gyroidal thin casing whose weight only is two g. The cup valve is installed in the full floating and non-interference mode and the sealing capability is better. The utility model can supply for the people to select the developmental and replaceable product of the fire extinguisher.

Description

Portable fire extinguisher

The utility model relates to a kind of stored-pressure type hand extinguisher.

In known technology, the device head part of stored-pressure type hand extinguisher follows to get off in history, adopts copper solid casting to forge valve both at home and abroad traditionally always.But every on this copper valve needs with 0.4-0.5 kilogram copper material, and the copper material thousands of tons of will be consumed every year in the whole nation for this reason, and the cast forging process energy consumption is big, contaminated environment, and labour intensity is big, and valve body also needs through the machine-shaping of multiple tracks cutting process, and technology is numerous and diverse, the cost height.In addition, the copper valve of this monoblock type is because form and position tolerances such as many places perpendicularity, coaxial degree, awl end face beat are difficult for guaranteeing in processing and the assembling, so product hermeticity can be also bad.Chinese utility model patent 89219403.0 " the portable fire extinguisher of vehicle " the applicant application and that granted patent, though adopted Gyro Shell body structure valve, realized the target of fire extinguisher product without copper material, but because it is that one hand is got the pistol trigger-type structure of holding, only be applicable to the small portable fire extinguisher of 3 kilograms of following specifications, still inapplicable for the fire extinguisher of 4-10 kilogram specification.

The purpose of this utility model is to overcome the weak point that exists in the known technology and a kind of novel thin-walled cup valve stored-pressure type hand extinguisher is provided.Its device head part adopts the cup valve system and the pressure-raising wushu mode of operation formed with sheet stamping member and moulding without copper material of the noiseless highly reliable type valve sealing structure of full-floating type, is suitable for 1-10 kilogram specification series product.

The purpose of this utility model realizes by following scheme:

The device head part of fire extinguisher adopts the cup valve system of being made up of following one group of stamping parts and seal, promptly have on the inner stopper step of fire extinguisher steel cylinder bottleneck upper end successively closed assembly and withhold with the bottleneck nut at the dish-shaped parcel post that buckles, button that the inversion stairstepping Gyro Shell body base on the bottleneck, outward flange are wrapped in the base flange squeeze soft seal washer in dish-shaped parcel post, place on the annular zone face of dish-shaped parcel post outer ring with the bottleneck seam in " O " shape sealing ring, circular cover and upper end and the fire extinguisher carrying handle stairstepping branch sleeve that becomes riveting to be connected; The cone shaped spring that also has in base the thin-walled cup valve of coaxial unsteady installation and support cup valve with it; Also have coaxially with it in the cup valve to be inserted into the tubular valve rod that 2-4 runner hole arranged around glass its lower end of valve bottom, and on the valve rod with on its horizontal body that is connected with screw thread a vertical gathering sill is arranged, laterally export threaded 90 ° of elbows.

The utility model has the advantages that: because a base and a cup valve are the Gyro Shell body, cup valve particularly, its weight has only 2 grams, compares with the solid valve of tradition casting forge copper matter, can save copper material in a large number.Most part of the present utility model is sheet stamping member and nonmetal moulding, produces with the punching press Shooting Technique, and good product quality, highly polished, the dimensional uniformity good stability, labour intensity is low, and production efficiency can be doubled and redoubled, reduce product cost, joint copper is energy-conservation, reduces environmental pollution.In addition, this cup valve is that the full floating self-centering is from resetting installation, there are not perpendicularity, coaxial degree and beat etc. that Geometrical Tolerance Principle is installed, belong to no external cause interference type hermetically-sealed construction, so its sealing is very reliable, this point can make the sealing property of stored pressure fire extinguisher improve a grade.Also have the utility model to adopt pressure-raising wushu mode of operation, therefore be suitable for specification and can expand to 1-10 kilogram scope.

Description of drawings:

Fig. 1 is a general assembly schematic diagram of the present utility model;

Fig. 2 is the local enlarged diagram of Fig. 1.

Below in conjunction with accompanying drawing embodiment of the present utility model is described further:

Be filled with the coaxial bottleneck 17 that is welded with in top of the steel cylinder 1 of gas, liquid or solid powder extinguishing agent and pressurized nitrogen in inside, on the inner stopper step of bottleneck upper end successively closed assembly have and be inverted the dish-shaped parcel post 4 that buckles, the button that stairstepping Gyro Shell body base 18, outward flange be wrapped in the base flange and squeeze soft seal washer 3, " O " shape sealing ring 6 and circular cover 7 in dish-shaped parcel post, bottleneck nut 5 screws mutually with the bottleneck external screw thread, and by the lower flange of stairstepping branch sleeve 14 above-mentioned each closed assembly spare is withheld on bottleneck.A thin-walled siphon pipe 2 that adopts the method suit of edging is arranged on the cylindrical of base lower end, float coaxial with it is equipped with thin-walled cup valve 16 and cone shaped spring 19 in the base, spring and pressure of the inside of a bottle upwards hold up the cup valve forces a glass valve port end face to be held on the lower plane of soft seal washer 3, form necessary sealing valve port specific pressure, guarantee the sealing of fire extinguisher.Tubular valve rod 15 passes above-mentioned each closed assembly spare straight cutting to cup valve bottom on vertical axis, valve rod upper end has on the horizontal body that is connected with screw thread a vertical gathering sill D is arranged, laterally outlet has 90 ° of elbows 13 of screw thread L, 2-4 runner hole K arranged around the valve rod lower end, valve rod can slide up and down along its vertical axis and gathering sill D apart from interior in qualification together with elbow, so as to realizing the switching motion of valve.Fire extinguisher carrying handle 8 becomes riveting to be connected with stairstepping branch sleeve 14 upper ends, and the keying pressure handle 11 of fire extinguisher is hinged by hinge 12 and carrying handle, safety plug 10 is inserted in the insurance pin-and-hole on the fire extinguisher carrying handle and with lead sealing and seals, valve rod upper limit spacer pin 9 rivet clasps are on the fire extinguisher carrying handle, and taper thread Pressure gauge 20 is in order to the display bottle internal pressure.

During operation, pull out safety plug 10 earlier, press down fire extinguisher again and open and close pressure handle 11, pressure handle promptly around its hinge 12 along clockwise direction to lower swing, the A point on the pressure handle is pressed to the B point on the elbow, and this downforce is passed to tubular valve rod 15 by curved head body, borrow valve rod lower ends downward pushing tow cup valve 16 bottoms, thereby by cup valve body compression spring 19 and overcome pressure of the inside of a bottle and force a glass valve to move down, a cup valve port can break away from soft seal washer 3, forms a valve opening amount.Extinguishing chemical will enter in the siphon pipe and along siphon pipe from siphon pipe 2 lower ends under the pressure of the inside of a bottle effect and rise this moment, cup valve port through having opened enters in glass valve 16, enter in the tubular valve rod through the hole of tubular valve rod lower end K again and continue to rise, through the 90 ° of along continuous straight runs ejections of turning back of 90 ° of elbows 13.Loosen pressure handle, the cup valve can automatically reset under spring and interior pressure effect, cuts off air-flow.Optionally, can adopt the operation of depressing pressure handle or loosening pressure handle, with continuous injection or the interrupted injection operation of finishing fire extinguisher.90 ° of elbows laterally outlet by its screw thread L continued access nozzle or jet hose as required.But taper thread Pressure gauge 20 is the display bottle internal pressure at any time, so as to judging the state of the art of fire extinguisher.

Claims (1)

1, a kind of thin-walled cup valve stored-pressure type hand extinguisher, by the steel cylinder at the bottom of the outer salient point bottle; thin-walled sleeve type siphon pipe; cup valve system device head; pressure-raising wushu operating mechanism; taper thread Pressure gauge and safeties are formed; it is characterized in that on the inner stopper step of bottleneck upper end that closed assembly successively has with the bottleneck nut withholds inversion stairstepping Gyro Shell body base on bottleneck; outward flange is wrapped in the dish-shaped parcel post that buckles of base flange; button squeezes the soft seal washer in dish-shaped parcel post; place on the annular zone face of dish-shaped parcel post outer ring and " 0 in the bottleneck seam " the shape sealing ring, circular cover with and upper end and the fire extinguisher carrying handle stairstepping branch sleeve that becomes riveting to be connected; The cone shaped spring that also has in base the thin-walled cup valve of coaxial unsteady installation and support cup valve with it; Also have in the cup valve with its coaxial be inserted on tubular valve rod that 2-4 runner hole arranged around glass its lower end of valve bottom and the valve rod with its horizontal body that is connected with screw thread on a vertical gathering sill is arranged, laterally export threaded 90 ° of elbows.

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