CN212439789U - Portable compressed air foam fire extinguisher - Google Patents

Abstract

The utility model discloses a portable compressed air foam fire extinguisher, from the top down including connecting gradually and handle valve, manual ball valve, proportioner and the mixed fluid reservoir of inside intercommunication, install the check valve on proportioner's the lateral wall and aerify and connect soon and the manometer, the check valve aerifys to connect soon and the manometer all with mixed fluid reservoir inside cavity intercommunication, proportioner and mixed fluid reservoir are detachable connection. The utility model applies the carbon fiber tank body to the portable fire extinguisher, and has light weight; the tank body is externally sleeved with a portable sleeve frame, so that the tank body is convenient to move; an independent mixer is arranged above the fire extinguisher, so that the foaming effect is better; the mixer and the tank body are tightly sealed by the screwing thread, so that the mixer can be disassembled conveniently and can be automatically filled with mixed liquid for reuse after being used; the mixer is provided with an air inflation quick connector, so that the air inflation is convenient; the fire extinguisher has good overall foaming effect, long spraying distance and good fire extinguishing effect of foam covering.

Description

Portable compressed air foam fire extinguisher

Technical Field

The utility model belongs to the technical field of the fire extinguisher, in particular to portable compressed air foam fire extinguisher.

Background

With the popularization of fire fighting consciousness in the current society, the portable canned fire extinguisher becomes a necessary fire-fighting article in some places. Common portable canned fire extinguishers are dry powder extinguishers and mechanical foam extinguishers. The common dry powder fire extinguisher drives the dry powder fire extinguishing agent to be sprayed to the surface of the combustible through compressed inert gas, and the dry powder and the inert gas can isolate air to achieve the purpose of fire extinguishing after covering the combustible. When in actual use, the dry powder can not reduce the temperature of the combustible integrally, so that the combustible is easy to reburn; the dry powder is easy to be absorbed into human body and has a barrier to health; the dry powder is dispersed after fire extinguishing, and the cleaning at the later period is troublesome. The fire extinguishing principle of the common foam fire extinguisher is that the sprayed foam covers the combustible, the temperature of the combustible is reduced, and the combustible is wrapped to isolate the rest air, so that the necessary condition of combustion is destroyed, and the purpose of fire extinguishing is achieved. Because the common chemical foam fire extinguisher is eliminated due to environmental pollution, the common mechanical (water-based) foam fire extinguisher foams after absorbing air in the process of collision and dispersion of mixed liquid sprayed from a nozzle at a high speed and the air, and the foaming rate is low. The sprayed foam can quickly flow away after covering the combustible, and can not really cover the combustible, so that the combustible is frequently reburnt, and the fire extinguishing capability is very limited. And the two common portable fire extinguishers are disposable, and empty cans are required to be filled by professional manufacturers after being used, so that the cans cannot be filled by themselves.

SUMMERY OF THE UTILITY MODEL

The utility model provides a portable compressed air foam fire extinguisher to the problem that exists of above-mentioned prior art.

The utility model discloses a following technical means realizes solving above-mentioned technical problem:

the utility model provides a portable compressed air foam fire extinguisher, from the top down is including connecting gradually and inside handle valve, manual ball valve, proportional mixer and the mixed fluid reservoir that communicates, install the check valve on proportional mixer's the lateral wall and aerify connect soon and the manometer, the check valve aerifys connect soon and the manometer all with mixed fluid reservoir inside cavity intercommunication, proportional mixer and mixed fluid reservoir are detachable connection.

Furthermore, a safety valve is further installed on the side wall of the proportional mixer and communicated with the inner cavity of the mixed liquid tank.

Further, the proportioner comprises a mixer top plug, a mixer main body, a mixer compact heap and a siphon pipe which are connected in sequence, a foam mixing chamber is formed between the mixer main body and the mixer top plug, a mixing chamber liquid inlet hole communicated with the siphon pipe is formed between the foam mixing chamber and the siphon pipe, a quick-connection matched inflation connector is arranged on the side wall of the mixer main body and is inflated with a one-way valve, the inflation connector extends into the mixing tank to form an inflation channel, and the inflation connector extends into the foam mixing chamber to form a mixing chamber air inlet hole.

Further, the mixer pressing block is connected with the mixed liquid tank in a sealing mode through threads.

Further, the mixed liquid tank is a carbon fiber cylindrical tank body.

Furthermore, both ends of the mixed liquid tank are hemispherical, and the top of the mixed liquid tank is provided with a bottle mouth.

Further, the portable liquid mixing tank further comprises a handheld sleeve frame, and a hemispherical groove matched with the liquid mixing tank is formed in the inner side of the bottom of the handheld sleeve frame.

Furthermore, the outer side of the bottom of the handheld sleeve frame is a plane.

Furthermore, a long handle is arranged on the side surface of the handheld sleeve frame.

Furthermore, the handheld sleeve frame is made of plastic materials.

The utility model has the advantages that: the utility model applies the carbon fiber tank body to the portable fire extinguisher, and has light weight; the tank body is externally sleeved with a portable sleeve frame, so that the tank body is convenient to move; an independent mixer is arranged above the fire extinguisher, so that the foaming effect is better; the mixer and the tank body are tightly sealed by the screwing thread, so that the mixer can be disassembled conveniently and can be automatically filled with mixed liquid for reuse after being used; the mixer is provided with an air inflation quick connector, so that the air inflation is convenient; the fire extinguisher has good overall foaming effect, long spraying distance and good fire extinguishing effect of foam covering.

Drawings

FIG. 1 is a schematic perspective view of a portable compressed air foam fire extinguisher according to an embodiment;

FIG. 2 is a schematic perspective view of a proportional mixer in an embodiment;

FIG. 3 is a schematic diagram showing two cross-sectional structures of a proportional mixer in the embodiment;

FIG. 4 is a schematic perspective view of a mixer main body in the embodiment;

FIG. 5 is a view showing two sectional structures of a mixer main body in the embodiment;

FIG. 6 is a schematic view of the portable compressed air foam fire extinguisher filled with mixed liquid according to the embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in figures 1-6, a portable compressed air foam fire extinguisher comprises a handle valve 5, a manual ball valve 4, a proportional mixer 3 and a mixed liquid tank 2 which are sequentially connected and are internally communicated from top to bottom, wherein a one-way valve inflation quick connector 12 and a pressure gauge 11 are installed on the side wall of the proportional mixer 3, the one-way valve inflation quick connector 12 and the pressure gauge 11 are both communicated with the inner cavity of the mixed liquid tank 2, and the proportional mixer 3 and the mixed liquid tank 2 are detachably connected.

The manual ball valve 4 is provided with a quick reaction knob in the prior art, and the opening angle of an internal valve core can be controlled to realize stepless regulation and control of the flow of the sprayed compressed air foam.

The handle valve 5 is provided with a safety pin, and the fire extinguisher can be opened to spray compressed air foam by pressing the valve handle after the valve handle is pulled out.

In actual use, when the fire extinguisher is empty, the proportioner 3 is removed from the mixture tank 2, the mixture of water and foam concentrate is filled into the mixture tank 2, and then the proportioner 3 is installed, so that the inside of the mixture tank 2 is partitioned into a compressed air chamber 23 and a mixture chamber 22 as shown in fig. 6. And then the check valve is used for inflating the quick connector 12 to the inside of the mixed liquid tank 2, compressed gas enters the compressed air cavity 23 through the inflation quick connector 18 of the check valve inflation quick connector 12 to store the compressed gas, and meanwhile, the pressure gauge 11 connected to the pressure gauge connecting hole 15 can display the system pressure until the system pressure meets the working requirement of the fire extinguisher.

And a safety valve 13 is further installed on the side wall of the proportioning mixer 3, and the safety valve 13 is communicated with the inner cavity of the mixed liquid tank 2. The safety valve 13 mainly plays a role in safety protection, and the safety valve 13 can release pressure when an inflation system fails or the compressed air cavity 23 has overpressure, so that equipment and personal safety are guaranteed.

Proportional mixer 3 includes blender compact heap 8, blender main part 9, blender top stopper 10, sealing washer 7 and siphon 6, blender top stopper 10, blender main part 9 and blender compact heap 8 from the top down coaxial fixed connection in proper order and the center is provided with the through-hole that link up, blender top stopper 10 links to each other with manual ball valve 4, blender compact heap 8 passes through threaded connection with mixture fluid reservoir 2, sealing washer 7 nestification is on the outer wall of blender compact heap 8, 2 jar mouths of mixture fluid reservoir have with sealing washer 7 complex sealed step face, the upper end of siphon 6 is fixed on the lower terminal surface of blender main part 9.

A mixer top plug mounting hole 16 matched with the mixer top plug 10 is formed in one end of the mixer main body 9, a foam mixing chamber 21 is formed between the mixer main body 9 and the mixer top plug 10, and a mixing chamber liquid inlet hole 20 is formed between the foam mixing chamber 21 and the siphon 6; the other end of the mixer main body 9 is provided with a siphon pipe insertion opening 14 matched with the siphon pipe 6; the side wall of the mixer main body 9 is provided with a pressure gauge connecting hole 15, a safety valve connecting hole 19 and an inflation quick-connection connecting port 18, the pressure gauge connecting hole 15 and the safety valve connecting hole 19 both extend into the mixed liquid tank 2 to form a channel, the inflation quick-connection connecting port 18 extends into the mixed liquid tank 2 to form an inflation channel, and the inflation quick-connection connecting port 18 extends into the foam mixing chamber 21 to form a mixing chamber air inlet 17.

When the fire extinguisher based on the technical scheme is used, the manual ball valve 4 is opened and adjusted firstly, and the total flow is adjusted by adjusting the opening and closing size of the valve core; after a handle valve 5 of the fire extinguisher is opened, compressed air in a contracted air cavity 23 downwards presses mixed liquid in a mixed liquid cavity 22 into a siphon 6, the mixed liquid sequentially enters a siphon insertion opening 14, a mixed chamber liquid inlet hole 20 and a foam mixing chamber 21 from the siphon 6, the compressed air in the contracted air cavity 23 upwards directly enters the foam mixing chamber 21 through a mixing chamber air inlet hole 17, the compressed air and the mixed liquid are mixed in the foam mixing chamber 21 in proportion, the size of the gas-liquid proportion is controlled through the aperture ratio of the mixing chamber air inlet hole 17 to the mixing chamber liquid inlet hole 20, the mixed compressed air foam enters the manual ball valve 4 through an inner hole of a mixer top plug 10 arranged on a mixer top plug mounting hole 16, and finally the mixed compressed air foam is sprayed out through the handle valve 5. The working characteristics are that the air inlet 17 of the mixing chamber and the inflation channel are a channel, on one hand, the external connection check valve inflation quick connection 12 can control the air flow to flow in a single direction to fill high-pressure air into the mixed liquid tank 2, on the other hand, the air flow is used as an air backflow channel to provide high-pressure air into the foam mixing chamber 21 during working, and the air mixing chamber has multiple purposes and high integration degree.

The mixed liquid tank 2 is a carbon fiber columnar tank body, the two ends of the mixed liquid tank 2 are hemispheric, a bottle mouth is arranged at the top of the hemispheric, and the bottle mouth is made of stainless steel and is provided with a sealing step surface.

The compressed air foam fire extinguisher further comprises a handheld sleeve frame 1, the inner side of the bottom of the handheld sleeve frame 1 is a hemispherical groove matched with the mixed liquid tank 2, the outer side of the bottom of the handheld sleeve frame 1 is a plane, and a long handle is arranged on the side face of the handheld sleeve frame 1. Handheld cover frame 1 and the laminating of mixed fluid reservoir 2 bottom act as the collet to place subaerial, conveniently place and take through the bottom plane of handheld cover frame 1.

The handheld sleeve frame 1 is made of plastic.

The utility model applies the carbon fiber tank body to the portable fire extinguisher, and has light weight; the tank body is externally sleeved with a portable sleeve frame, so that the tank body is convenient to move; an independent mixer is arranged above the fire extinguisher, so that the foaming effect is better; the mixer and the tank body are tightly sealed by the screwing thread, so that the mixer can be disassembled conveniently and can be automatically filled with mixed liquid for reuse after being used; the mixer is provided with an air inflation quick connector, so that the air inflation is convenient; the fire extinguisher has good overall foaming effect, long spraying distance and good fire extinguishing effect of foam covering.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a portable compressed air foam fire extinguisher, its characterized in that, from the top down is including connecting gradually and inside handle valve (5), manual ball valve (4), proportioner (3) and the mixture fluid reservoir (2) that communicate, install the check valve on the lateral wall of proportioner (3) and aerify and connect (12) and manometer (11) soon, the check valve aerifys to connect (12) and manometer (11) all with mixture fluid reservoir (2) internal cavity intercommunication soon, proportioner (3) are detachable with mixture fluid reservoir (2) and are connected.

2. A portable compressed air foam fire extinguisher according to claim 1, characterized in that a safety valve (13) is further installed on the side wall of said proportioner (3), said safety valve (13) communicating with the internal cavity of the mixture tank (2).

3. A hand-held compressed air foam fire extinguisher according to claim 1 or 2, the proportional mixer (3) comprises a mixer top plug (10), a mixer main body (9), a mixer compact block (8) and a siphon (6) which are connected in sequence, a foam mixing chamber (21) is formed between the mixer main body (9) and the mixer top plug (10), a mixing chamber liquid inlet hole (20) communicated with the foam mixing chamber (21) and the siphon (6) is arranged between the foam mixing chamber and the siphon, an inflation quick-connection connecting port (18) matched with the one-way valve inflation quick-connection (12) is arranged on the side wall of the mixer main body (9), the inflation quick connection port (18) extends into the mixed liquid tank (2) to form an inflation channel, the inflation quick connection port (18) extends to the foam mixing chamber (21) to form a mixing chamber air inlet hole (17).

4. A portable compressed air foam fire extinguisher according to claim 3, characterised in that said mixer compact block (8) is in threaded sealing connection with the mix tank (2).

5. A portable compressed air foam fire extinguisher according to claim 1 or 2, characterised in that said mix tank (2) is a carbon fibre cylindrical tank.

6. A portable compressed air foam fire extinguisher according to claim 5, characterised in that the ends of said mix tank (2) are hemispherical and the top is provided with a bottle mouth.

7. The portable compressed air foam fire extinguisher according to claim 6, further comprising a handheld sleeve frame (1), wherein the inner side of the bottom of the handheld sleeve frame (1) is provided with a hemispherical groove matched with the mixed liquid tank (2).

8. A portable compressed air foam fire extinguisher according to claim 7, characterised in that the outside of the bottom of said hand held shroud frame (1) is flat.

9. A portable compressed air foam fire extinguisher according to claim 8, characterised in that said hand held shroud (1) is flanked by long handles.

10. A portable compressed air foam fire extinguisher according to claim 9, characterised in that said hand held shroud (1) is of plastics material.

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