CN113926119A

CN113926119A - Sectional pulse type foam fire extinguisher

Info

Publication number: CN113926119A
Application number: CN202111225166.XA
Authority: CN
Inventors: 周永升; 许彩云; 王强; 谷雨; 田歌
Original assignee: Zhoukou Normal University
Current assignee: Zhoukou Normal University
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-01-14
Anticipated expiration: 2041-10-21
Also published as: CN113926119B

Abstract

The invention relates to the technical field of fire-fighting equipment, in particular to a segmented pulse type foam fire extinguisher; the fire extinguisher comprises a tank cover, a tank body and a base which are sequentially detachably and fixedly installed from top to bottom, and further comprises a throwing assembly arranged in the tank body, wherein the tank body is a blind pipe which is opened up and closed down, a supporting ring body is arranged on the inner wall of the tank body close to the upper end of the tank body, a limiting ring body is arranged on the inner wall of the tank body close to the lower end of the tank body, an accommodating cavity is formed in the bottom wall of the tank body, a handle is arranged on the outer side wall of the tank body, the throwing assembly comprises a carrying column, a sealing cover, a gear disc, a glass liner, a stepping motor, an air bag and an air pump, a spray pipe is arranged at the top of the tank cover, a pressure valve and a handle are arranged on the spray pipe, an air pressure adjusting assembly and an interaction assembly are also arranged on the tank body, and the throwing assembly, the air pressure adjusting assembly and the interaction assembly are all controlled by a control assembly; the invention can effectively solve the problems of poor safety, serious waste and the like in the prior art.

Description

Sectional pulse type foam fire extinguisher

Technical Field

The invention relates to the technical field of fire-fighting equipment, in particular to a segmented pulse type foam fire extinguisher.

Background

A fire extinguisher is a device that extinguishes a fire using the cooling effect of a fire extinguishing agent or the effect of isolating oxygen.

Fire extinguishers can be classified into large-sized fire extinguishers having a fire extinguishing capacity of 10 or 20 units or more, or small-sized fire extinguishers having a fire extinguishing capacity of 1 unit or more, but the small-sized fire extinguishers are smaller than the large-sized fire extinguishers. Small fire extinguishers are generally designed for use in homes, workshops, offices, etc. due to their convenience in handling and transportation.

Fire extinguishers may also be classified into foam extinguishers, liquid-intensified extinguishers, halogen extinguishers, carbon dioxide extinguishers or dry powder extinguishers, etc. according to the type of extinguishing agent filled in the body thereof. Since fire extinguishing agents are generally expensive, fire extinguishers using other fire extinguishing agents than dry powder fire extinguishing agents are generally used only for special occasions.

The foam extinguisher is filled with a mixed solution of sodium bicarbonate and foaming agent, and is also provided with a glass bottle inner container filled with an aluminum sulfate aqueous solution. When the device is used in a common mode, the cylinder body is turned upside down, the sodium bicarbonate solution and the aluminum sulfate solution are mixed to generate a chemical action, carbon dioxide gas foam is generated, the volume of the foam expands by 7-10 times, and the foam can be sprayed for about 10m generally. When some current large-scale foam extinguisher were depositing, because the foam extinguisher puts out a fire through the carbon dioxide that sodium bicarbonate solution and aluminium sulfate solution chemical reaction produced, the glass bottle that the jar was placed is usually in open state, and then when the foam extinguisher took place to empty, the phenomenon that the aluminium sulfate solution that leads to placing in the glass bottle to appear leaking easily, and then makes sodium bicarbonate solution and aluminium sulfate solution take place the mixing reaction, and then has influenced the safety of foam extinguisher and has deposited.

In the application number: the patent document of CN201921322253.5 discloses a portable foam fire extinguisher, including framework and barrel, the inside of framework is provided with the barrel, and the bottom cover of barrel is equipped with the base, all attached have rubber splint on the left and right sides wall of barrel, the central point department of putting at barrel top inlays and has the valve body, and the right side at valve body top is fixed with the carrying handle, the department of putting of the inside central point of valve body alternates there is the valve rod, the bottom of valve rod extends to the bottom of valve body and is fixed with the valve clack, and the bottom cover of valve clack is equipped with the silica gel piece, the bottom of valve body is fixed with the body, and the top of body is provided with the cavity, the middle part of body alternates there is T type pole, the siphon is installed to the bottom of body. This portable foam fire extinguisher not only has dual function of sealing and spacing resetting, has improved the inside sealing performance of foam fire extinguisher, has diversified buffering shock-absorbing structure moreover, has guaranteed taking of foam fire extinguisher and has put safety.

However, the method still has the problems of poor safety and serious waste in the actual use process: the glass liner is broken by shaking the bottle body forcibly when the fire extinguisher in the comparison document is used, so that the sodium bicarbonate solution and the aluminum sulfate solution are mixed and then generate chemical action to generate carbon dioxide gas foam with volume expansion of 7-10 times, and after the fire extinguisher in the comparison document is used, a nozzle of the fire extinguisher needs to be placed downwards and horizontally on the ground (because the high-pressure foam fire extinguishing agent is not sprayed out in the fire extinguisher), so that the fire extinguisher in the comparison document is used once and all, and the use cost is not increased.

Disclosure of Invention

The present invention is directed to solving the problems of the prior art, and the problems set forth in the background above.

In order to achieve the purpose, the invention adopts the following technical scheme: a segmented pulse type foam fire extinguisher comprises a tank cover, a tank body and a base which are detachably and fixedly arranged in sequence from top to bottom, and further comprises a throwing component arranged in the tank body;

the tank body is a blind pipe which is opened at the upper part and closed at the lower part, a supporting ring body is arranged on the inner wall of the tank body close to the upper end of the tank body, a limiting ring body is arranged on the inner wall of the tank body close to the lower end of the tank body, an accommodating cavity is formed in the bottom wall of the tank body, and a handle is arranged on the outer side wall of the tank body;

the throwing assembly comprises a loading column, a sealing cover, a gear plate, a glass inner container, a stepping motor, an air bag and an air pump, wherein the loading column is in a cylindrical shape, the outer side wall of the loading column is in sealed fit with the inner side wall of the tank body, a diversion trench penetrates through the loading column in a coaxial manner, an annular groove coaxial with the loading column is further formed in the part, close to the lower end, of the loading column, a group of magazine penetrating through the upper end and the lower end of the loading column is distributed in an equidistant manner by taking the central axis of the loading column as the symmetric axis, the magazine and the diversion trench are isolated from each other, the annular groove is isolated from the diversion trench, the gear plate is rotatably connected in the annular groove in a coaxial manner, a through hole matched with the magazine is formed in the gear plate, a hinged support is arranged at the position, at which the bottom wall of the upper end of the loading column is positioned in each magazine, a sealing cover matched with the magazine opening of the magazine is rotatably connected on the hinged support, the air bag is attached to the inner wall of the magazine, the glass inner container is arranged inside the magazine and is extruded and fixed by the air bag, the air pump and the stepping motor are both arranged in the cavity inside the loading column, and the air bag and the gear disc are respectively driven by the air pump and the stepping motor.

Furthermore, the top of the tank cover is provided with a spray pipe, the spray pipe is provided with a pressure valve and a handle, the handle is provided with a safety needle which can be plugged in and out, the tank cover is in a stepped tubular shape with a wide upper part and a narrow lower part, the narrow pipe orifice at the lower end of the tank cover completely supports the object carrying column on the supporting ring body, the wide pipe orifice at the lower end of the tank cover completely supports the pipe orifice of the tank body, and the outer side wall of the narrow pipe orifice at the lower end of the pipe cover is in sealed fit with the inner side wall of the tank body.

Furthermore, the edges of the narrow pipe opening and the wide pipe opening of the tank cover are provided with sealing gaskets.

Furthermore, the top of the carrying column is detachably and fixedly provided with an annular pressing plate matched with the sealing cover.

Furthermore, the distance between two magazines at the head end and the tail end of the annular array is at least 2 times of the distance between any two adjacent magazines on the annular array.

Furthermore, the glass liner is cylindrical, two mutually isolated storage cavities are arranged inside the glass liner, and the two storage cavities in the same glass liner are respectively pre-filled with a foam extinguishing agent A and a foam extinguishing agent B.

Furthermore, a hollow interlayer isolated from the storage cavity is arranged in the glass liner body, pressure sensitive gunpowder is filled in the hollow interlayer, a notch for communicating the hollow interlayer is formed in the bottom of the glass liner, and a flexible diaphragm is arranged at the notch in a sealing manner.

Furthermore, a first electrical connector matched with a first electrical interface at the bottom of the tank body is arranged at the bottom of the base, a second electrical connector matched with a second electrical interface at the bottom of the lower end of the object carrying column is arranged on the bottom wall of the upper end of the supporting ring body, a group of limiting grooves symmetrically penetrate through the base, limiting rods corresponding to the limiting grooves one by one are arranged at the bottom of the tank body, the limiting rods just penetrate through the limiting grooves, transverse sliding grooves penetrate through the rod bodies of the limiting rods at the outer ends of the limiting grooves, ejection springs are fixed on the bottom walls of the sliding grooves, sliding columns in sliding connection in the sliding grooves are fixed at the other ends of the ejection springs, and the sliding columns abut against the bottom of the base;

the bottom of base still be equipped with first electric property joint complex control assembly, still be equipped with atmospheric pressure adjusting part and mutual subassembly on the jar body, put in subassembly, atmospheric pressure adjusting part and mutual subassembly and control by control assembly.

Furthermore, the air pressure adjusting assembly comprises a ventilation groove, a piston, a reset spring, a permanent magnet, an electromagnet and an air pressure sensor, the ventilation groove is formed in the side wall of the tank body close to the bottom end of the tank body, the piston is connected in a sliding mode in the tank body between the supporting ring body and the limiting ring body, two ends of the reset spring are respectively fixed to the bottom of the piston and the bottom wall of the tank body, the permanent magnet is embedded in the piston in a mode that the magnetic field direction is along the central axis direction of the tank body, the electromagnet is embedded in the bottom end of the tank body in a mode that the magnetic field direction is along the central axis direction of the tank body, and the air pressure sensor is arranged at the top of the carrier column;

the interaction assembly comprises a display screen, a key module and a third electrical interface which are arranged on the handle;

the control assembly comprises a control box arranged at the bottom of the base, a power module and a PCB board, wherein the power module and the PCB board are arranged in the control box.

Furthermore, a group of firing pins are uniformly distributed on the top of the piston; the reset spring is made of non-magnetic materials, and the upper end and the side end of the permanent magnet and the lower end and the side end of the electromagnet are respectively coated with a magnetic shielding cover matched with the permanent magnet.

Compared with the prior art, the invention has the advantages and positive effects that,

the invention adds a tank cover, a tank body and a base which are fixedly arranged in a detachable way in sequence from top to bottom, and also comprises a throwing component arranged in the tank body, wherein the throwing component comprises a carrying column, a sealing cover, a gear disc, a glass liner, a stepping motor, an air bag and an air pump, the glass liner is cylindrical, two mutually isolated storage cavities are arranged in the glass liner, a foam extinguishing agent A and a foam extinguishing agent B are respectively pre-filled in the two storage cavities in the same glass liner, a hollow interlayer isolated from the storage cavities is arranged in a glass liner body, pressure sensitive gunpowder is filled in the hollow interlayer, a gap for communicating the hollow interlayer is arranged at the bottom of the glass liner, a flexible diaphragm is arranged at the gap in a sealing way, a control component matched with a first electric connector is also arranged at the bottom of the base, and an air pressure adjusting component and an interaction component are also arranged on the tank body, the throwing component, the air pressure adjusting component and the interaction component are all controlled by the control component.

Therefore, the foam extinguishing agent A and the foam extinguishing agent B in the original fire extinguisher can be divided into a plurality of parts by the feeding assembly, only one part of the foam extinguishing agent A and the foam extinguishing agent B is used when the fire extinguisher is used, and only when the last part of the foam extinguishing agent A and the foam extinguishing agent B are used, the control assembly instructs the feeding assembly to use the next part of the foam extinguishing agent A and the next part of the foam extinguishing agent B.

The fire extinguisher has the advantages that the safety of the fire extinguisher in the actual use process is effectively improved, and meanwhile, the resource waste can be effectively reduced.

Drawings

FIG. 1 is a pictorial view of the present invention from a first perspective;

FIG. 2 is an exploded partial view of the present invention from a second perspective;

FIG. 3 is a schematic view of a tank bottom limiting rod of the invention in a third view, partially cut away;

FIG. 4 is a schematic view of a partially sectioned can body at a fourth viewing angle of the present invention;

FIG. 5 is a pictorial view, partially in section, of the piston at a fifth angle of view in accordance with the present invention;

FIG. 6 is a partial exploded view of the projection assembly from a sixth perspective of the present invention;

FIG. 7 is a schematic view of a seventh viewing angle of the present invention showing a carrier column separated from a gear plate, a stepping motor and an air pump after being partially cut away;

FIG. 8 is a partially sectioned pictorial view of a glass liner at an eighth viewing angle in accordance with the present invention;

FIG. 9 is a pictorial view of the base at a ninth perspective of the present invention;

FIG. 10 is a pictorial view, partially in section, of a control pod at a tenth viewing angle in accordance with the present invention;

FIG. 11 is a pictorial view of the permanent magnet and electromagnet separated from their upper magnetic shields at an eleventh viewing angle in accordance with the present invention;

FIG. 12 is an enlarged view of area A of FIG. 3;

FIG. 13 is an enlarged view of area B of FIG. 4;

FIG. 14 is an enlarged view of area C of FIG. 4;

the reference numerals in the drawings denote: 1-can cover; 2-tank body; 3-a base; 4-a support ring body; 5-a limiting ring body; 6-a handle; 7-carrying column; 8-sealing cover; 9-a gear disc; 10-glass liner; 11-a stepper motor; 12-an air bag; 13-an air pump; 14-a diversion trench; 15-ring groove; 16-a magazine; 17-a through hole; 18-a nozzle; 19-a pressure valve; 20-a handle; 21-safety needle; 22-a sealing pad body; 23-an annular platen; 24-a storage chamber; 25-a hollow interlayer; 26-a flexible membrane; 27-a first electrical interface; 28-a first electrical contact; 29-striker; 30-a magnetic shield; 31-a limiting groove; 32-a limiting rod; 33-an ejector spring; 34-a slide column; 35-a ventilation groove; 36-a piston; 37-a return spring; 38-a permanent magnet; 39-an electromagnet; 40-a barometric pressure sensor; 41-display screen; 42-a key module; 43-a third electrical interface; 44-a control box; 45-a power module; 46-PCB board.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

The sectional impulse type foam fire extinguisher of the embodiment is as follows with reference to fig. 1-14: the fire extinguisher includes from last to down detachable fixed mounting's cover 1, jar body 2 and base 3 in proper order, still including setting up throwing in subassembly, atmospheric pressure adjusting part and mutual subassembly on jar body 2, still including setting up the control assembly in 3 bottoms of base to throw in subassembly, atmospheric pressure adjusting part and mutual subassembly and control by the control assembly.

A,

(one-one)

The tank body 2 is a blind pipe which is opened up and closed down, a supporting ring body 4 is arranged on the inner wall of the tank body 2 close to the upper end of the tank body, a limiting ring body 5 is arranged on the inner wall of the tank body 2 close to the lower end of the tank body, and a containing cavity is formed in the bottom wall of the tank body 2.

In order to put out a fire with the fire extinguisher at the user, the person of facilitating the use carries the fire extinguisher, need be equipped with handle 6 on the lateral wall of jar body 2 (because the fire extinguisher can produce strong recoil when spouting, traditional fire extinguisher user can only hold the fire extinguisher through the handle 20 at fire extinguisher top, this can make the fire extinguisher body produce great rocking, this lets the user appear taking unstable situation easily, also do not do benefit to the user to carry the fire extinguisher fast and safety simultaneously (safety here means that the user carries the fire extinguisher and does not take place to drop at the removal process, because the inside glass inner bag 10 of foam extinguisher will take place cracked when receiving strong impact, thereby let the inside high pressure that gets into of fire extinguisher in advance) reach the condition of a fire point).

(one-two)

The top of cover 1 is equipped with spray tube 18, be equipped with pressure valve 19 and handle 20 on the spray tube 18, be equipped with the safety needle 21 of plug on the handle 20, cover 1 is wide ladder tubulose down, the narrow mouth of pipe of cover 1 lower extreme supports the year thing post 7 that is in on the support ring body 4 completely, and the wide mouth of pipe of cover 1 lower extreme supports the mouth of pipe of jar body 2 completely, and the narrow orificial lateral wall of pipe cover lower extreme and the inside wall sealed laminating of jar body 2.

The sealing gaskets 22 made of rubber are arranged on the edges of the narrow pipe orifice and the wide pipe orifice of the tank cover 1, so that the sealing performance of the tank cover 1 when being installed on the tank body 2 can be effectively ensured.

In the embodiment, the tank cover 1 and the tank body 2 are fixedly connected by adopting a bolt and nut mode, and in order to protect the bolt and nut from oxidation corrosion, chemical corrosion or electrochemical corrosion in the daily storage process of the fire extinguisher, sealing wax can be filled in the tank body where the bolt and nut are positioned.

(one-three)

The bottom of the base 3 is provided with a first electrical connector 28 matched with a first electrical connector 27 at the bottom of the tank body 2, the bottom wall of the upper end of the support ring body 4 is provided with a second electrical connector matched with a second electrical connector at the bottom wall of the lower end of the object carrying column 7, a group of limiting grooves 31 symmetrically penetrate through the base 3, the bottom of the tank body 2 is provided with limiting rods 32 corresponding to the limiting grooves 31 one by one, the limiting rods 32 just penetrate through the limiting grooves 31, transverse sliding grooves penetrate through the rod bodies of the limiting rods 32 at the outer ends of the limiting grooves 31, the bottom walls of the sliding grooves are fixed with ejection springs 33, the other ends of the ejection springs 33 are fixed with sliding columns 34 in the sliding grooves in a sliding manner, and main bodies of the sliding columns 34 extending out of the sliding grooves are just abutted against the bottom of the base 3; thus, the base 3 and the tank 2 can be conveniently assembled or disassembled.

II,

(two-one)

The throwing component comprises a loading column 7, a sealing cover 8, a gear plate 9, a glass inner container 10, a stepping motor 12, an air bag 12 and an air pump 13, the loading column 7 is in a cylindrical shape, the outer side wall of the loading column 7 is hermetically attached to the inner side wall of the tank body 2, a diversion trench 14 coaxially penetrates through the loading column 7, a ring groove 15 coaxial with the loading column 7 is further formed in the loading column 7 close to the lower end, a group of magazine 16 penetrating through the loading column and the lower end of the loading column 7 at equal intervals by taking the central axis of the loading column as a symmetric axis, the magazine 16 and the diversion trench 14 are mutually isolated, the ring groove 15 is isolated from the diversion trench 14, the gear plate 9 is coaxially and rotatably connected in the ring groove 15, a through hole 17 matched with the magazine 16 is formed in the gear plate 9, a hinged support is arranged at the position, at the position of the position, at the position, of the bottom wall, of the upper end of the loading column 7, of each hinged support, a sealing cover 8 matched with the magazine 16, the air bag 12 is attached to the inner wall of the magazine 16, the glass inner container 10 is arranged inside the magazine 16 and is extruded and fixed by the air bag 12, the air pump 13 and the stepping motor 12 are both arranged in a cavity inside the carrying column 7, and the air bag 12 and the gear disc 9 are respectively driven by the air pump 13 and the stepping motor 12.

It is worth noting that: the top of the carrier column 7 is also detachably and fixedly provided with an annular pressing plate 23 matched with the sealing cover 8, so that the sealing cover 8 can be effectively prevented from being bounced open, and the sealing performance inside the magazine 16 is improved.

It is worth noting that: the distance between two magazines 16 at the head and the tail of the annular array is at least 2 times of the distance between any two adjacent magazines 16 on the annular array, so as to ensure that the gear plate 9 has an initial state, namely, the through hole 17 is not communicated with any magazine 16 in the initial state.

It is worth noting that: the glass liner 10 is cylindrical, two mutually isolated storage cavities 24 are arranged inside the glass liner 10, and the two storage cavities 24 in the same glass liner 10 are respectively pre-filled with a foam extinguishing agent A and a foam extinguishing agent B; wherein, the reaction between the foam extinguishing agent A and the foam extinguishing agent B can not only generate a large amount of foam, but also generate a large amount of carbon dioxide gas.

It is worth noting that: the glass liner 10 is provided with a hollow interlayer 25 isolated from the storage cavity 24 in the body, the pressure sensitive gunpowder is filled in the hollow interlayer 25, the bottom of the glass liner 10 is provided with a notch communicated with the hollow interlayer 25, and the notch is provided with a flexible diaphragm 26 in a sealing manner, so that when the glass liner 10 falls out of the magazine 16, the bottom of the glass liner 10 is in contact with the piston 36, the pressure sensitive gunpowder is triggered to explode, the glass liner 10 is completely exploded through the strict and limited explosion, and the foam extinguishing agent A and the foam extinguishing agent B are in full contact reaction to generate a large amount of foam and carbon dioxide gas. The reason for this is that the impact of the glass liner 10 as it falls from the magazine 16 onto the piston 36 is not effective to completely break the glass liner 10, i.e., the reservoir 24 may not rupture. Of course, the glass liner 10 may also be designed to completely burst when impacted, such as: impurities are mixed in the bottom stress area of the glass liner 10, so that the overall structural stability of the glass liner 10 is damaged (the principle of the glass liner is the same as that of tempered glass which contains impurities and bursts in real life); or the glass inner container 10 is designed to have a structure similar to the structure of the glass inner container by using the tear principle of Lubert and the like.

(two-two)

The air pressure adjusting assembly comprises an air permeable groove 35, a piston 36, a reset spring 37, a permanent magnet 38, an electromagnet 39 and an air pressure sensor 40, wherein the air permeable groove 35 is formed in the side wall of the tank body 2 close to the bottom end of the tank body 2, the piston 36 is slidably connected inside the tank body 2 between the supporting ring body 4 and the limiting ring body 5, two ends of the reset spring 37 are respectively fixed to the bottom of the piston 36 and the bottom wall of the tank body 2, the permanent magnet 38 is embedded inside the piston 36 in a mode of a magnetic field direction along the central axis direction of the tank body 2, the electromagnet 39 is embedded inside the bottom end of the tank body 2 in a mode of the magnetic field direction along the central axis direction of the tank body 2, and the air pressure sensor 40 is arranged at the top of the loading column 7.

It is worth noting that: a plurality of firing pins 29 are uniformly distributed on the top of the piston 36, so that the firing pins 29 can effectively ensure that the pressure sensitive powder in the hollow interlayer 25 on the glass liner 10 is triggered.

It is worth noting that: the return spring 37 is made of a non-magnetic material, so that the return spring 37 is prevented from being magnetized, and the normal operation of the air pressure adjusting assembly is influenced.

It is worth noting that: the upper end and the side end of the permanent magnet 38 and the lower end and the side end of the electromagnet 39 are coated with magnetic shields 30 matched with the permanent magnet and the electromagnet; this can effectively prevent the magnetic fields generated by the permanent magnet 38 and the electromagnet 39 from interfering with the outside and other electrical components. In the present embodiment, the magnetic shield 30 is made of a ferromagnetic (soft magnetic) material having a high magnetic permeability, such as a permalloy or a nickel-iron alloy.

It is worth noting that: in order to further avoid the interference of the magnetic fields generated by the permanent magnets 38 and the electromagnets 39 to the outside and the performance of the electrical components, the can body 2 itself is made of a magnetic shielding material, and in this embodiment, the specific production process of the can body 2 is to plate the outer wall of the can body 2 with a coating made of the magnetic shielding material.

(two-three)

The interaction assembly comprises a display 41 arranged on the handle 6, a key module 42 and a third electrical interface 43.

It should be noted that the power module 45 is charged with the external power source through the third electrical interface 43; the electromagnet 39 and the air pressure sensor 40 are matched through the first electrical interface 27 and the first electrical connector 28, so that power is supplied by the power module 45 and is controlled by the PCB 46; the stepping motor 12 and the air pump 13 are matched with the second electrical connector through the second electrical interface, so that power is supplied by the power module 45 and is controlled by the PCB 46.

(two-four)

The control assembly comprises a control box 44 arranged at the bottom of the base 3, and a power module 45 and a PCB 46 which are arranged inside the control box 44; wherein, the PCB 46 comprises electric components such as a singlechip, a memory and the like; wherein, the memory is pre-stored with corresponding control program and data.

(III)

The working principle is as follows:

in a first step, the user pulls off safety needle 21.

In a second step, the user holds the handle 6 and the grip 20 with one hand and presses the grip 20, thereby opening the pressure valve 19 on the spout 18.

Thirdly, the user starts the singlechip to execute the control program in the memory through the key module 42.

Fourthly, the PCB 46 instructs the stepping motor 12 to drive the gear plate 9 to rotate by a designated angle, so that the through hole 17 is coaxially aligned with the magazine 16, and then the PCB 46 instructs the air pump 13 to deflate the air bag 12 in the magazine 16, so that the glass liner 10 in the magazine 16 falls onto the piston 36.

Fifth, when the glass liner 10 drops onto the piston 36, the striker 29 of the piston 36 strikes the gunpowder through the flexible diaphragm 26, so that the gunpowder explodes to fully burst the glass liner 10, so that the foam extinguishing agent A and the foam extinguishing agent B are sufficiently contacted and reacted to generate a large amount of foam and carbon dioxide gas, and the generated foam and carbon dioxide gas are rapidly ejected from the nozzle 18.

It should be noted that during the fifth step, the PCB 46 monitors the air pressure inside the can 2 in real time through the air pressure sensor 40, and adjusts the operation of the electromagnet 39 to drive the piston 36 to move upward through the monitored air pressure data, so as to ensure that the air pressure at the upper end inside the can 2 maintains a constant high pressure.

Sixthly, when the PCB 46 detects that the foam extinguishing agent in the tank 2 is completely sprayed in the fifth step (that is, when the PCB 46 detects that the air pressure in the tank 2 is lower than the set value for a long time through the air pressure sensor 40), the PCB 46 instructs the electromagnet 39 to be energized reversely, so that the piston 36 is rapidly reset under the action of the reset spring 37, then the PCB 46 instructs the stepping motor 12 to drive the gear plate 9 to rotate by a specified angle, so that the through hole 17 is coaxially aligned with the magazine 16 of the next stage, and then the PCB 46 instructs the air pump 13 to deflate the air bag 12 in the magazine 16, so that the glass inner container 10 in the magazine 16 falls onto the piston 36.

The seventh step is the same as the fifth step.

Eighth, when the user finishes using the fire extinguisher, the PCB 46 instructs the electromagnet 39 to be de-energized, thereby allowing the piston 36 to move downward under the action of the return spring 37 to be restored in the can 2, thereby reducing the pressure inside the can 2.

It is worth noting that: the display screen 41 displays contents including, but not limited to, the power of the power module 45, the air pressure inside the can 2, how many glass liners 10 remain on the carrier 7, and the like.

It should be noted that, in the process of the first step to the eighth step, the user can manually select the number of the glass inner containers 10 falling each time through the key module 42 according to the actual fire.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a segmentation pulsed foam extinguisher, the fire extinguisher includes from last cover (1), jar body (2) and base (3) to down detachable fixed mounting in proper order, its characterized in that: the feeding assembly is arranged in the tank body (2);

the tank body (2) is a blind pipe which is opened up and closed down, a supporting ring body (4) is arranged on the inner wall of the tank body (2) close to the upper end of the tank body, a limiting ring body (5) is arranged on the inner wall of the tank body (2) close to the lower end of the tank body, a containing cavity is formed in the bottom wall of the tank body (2), and a handle (6) is arranged on the outer side wall of the tank body (2);

the feeding assembly comprises a loading column (7), a sealing cover (8), a gear disc (9), a glass inner container (10), a stepping motor (11), an air bag (12) and an air pump (13), wherein the loading column (7) is in a cylindrical shape, the outer side wall of the loading column (7) is in sealed fit with the inner side wall of the tank body (2), a diversion trench (14) penetrates through the loading column (7) in a coaxial manner, a ring groove (15) coaxial with the loading column is also formed in the part, close to the lower end, of the loading column (7), the loading column (7) is distributed in a group of magazine magazines (16) which penetrate through the upper end and the lower end of the loading column and are equidistant by taking the central axis as the symmetric axis, the magazine magazines (16) and the diversion trench (14) are mutually isolated, the ring groove (15) is isolated from the diversion trench (14), the gear disc (9) is connected in the ring groove (15) in a coaxial manner in a rotating manner, a through hole (17) matched with the magazine (16) is formed in the gear disc (9), carry the bin mouth department that thing post (7) upper end diapire is in every magazine (16) and all be equipped with the free bearing, all rotate on the free bearing and be connected with sealed lid (8) of bullet magazine (16) bin mouth complex, gasbag (12) are attached to on the inner wall of magazine (16), glass inner bag (10) set up inside magazine (16) and by gasbag (12) extrusion fixed, air pump (13) and step motor (11) all set up in carrying the inside cavity of thing post (7), gasbag (12), toothed disc (9) are driven by air pump (13), step motor (11) respectively.

2. The sectional pulse type fire extinguisher according to claim 1, characterized in that a spray pipe (18) is arranged at the top of the tank cover (1), a pressure valve (19) and a handle (20) are arranged on the spray pipe (18), a pluggable safety needle (21) is arranged on the handle (20), the tank cover (1) is in a stepped tubular shape with a wide top and a narrow bottom, a narrow pipe orifice at the lower end of the tank cover (1) completely abuts against a carrier column (7) on a supporting ring body (4), a wide pipe orifice at the lower end of the tank cover (1) completely abuts against a pipe orifice of the tank body (2), and the outer side wall of the narrow pipe orifice at the lower end of the pipe cover is in sealing fit with the inner side wall of the tank body (2).

3. A sectional impulse type fire extinguisher according to claim 2, characterized in that the narrow tube mouth and the wide tube mouth of the tank cover (1) are provided with sealing cushions (22).

4. A segmental pulse type foam fire extinguisher according to claim 1, characterized in that the top of the carrying column (7) is also detachably and fixedly provided with an annular pressing plate (23) matched with the sealing cover (8).

5. A segmented pulsed foam extinguisher according to claim 1, characterized in that the distance between two said magazines (16) at the beginning and end of the annular array is at least 2 times the distance between any two adjacent magazines (16) on the annular array.

6. The sectional impulse type fire foam extinguisher according to claim 1, wherein the glass inner container (10) is cylindrical, two storage cavities (24) isolated from each other are arranged inside the glass inner container (10), and the two storage cavities (24) in the same glass inner container (10) are pre-filled with a fire foam agent A and a fire foam agent B respectively.

7. The sectional impulse type fire foam extinguisher according to claim 6, characterized in that a hollow interlayer (25) isolated from the storage cavity (24) is arranged in the glass liner (10), the interior of the hollow interlayer (25) is filled with pressure sensitive powder, the bottom of the glass liner (10) is provided with a gap for communicating the hollow interlayer (25), and the gap is hermetically provided with a flexible diaphragm (26).

8. The sectional impulse type fire extinguisher according to claim 1, characterized in that the bottom of the base (3) is provided with a first electrical connector (28) which is matched with a first electrical connector (27) at the bottom of the tank body (2), the upper end bottom wall of the supporting ring body (4) is provided with a second electrical connector which is matched with a second electrical connector at the lower end bottom wall of the object carrying column (7), the base (3) is symmetrically penetrated with a group of limiting grooves (31), the bottom of the tank body (2) is provided with limiting rods (32) which are in one-to-one correspondence with the limiting grooves (31), the limiting rods (32) are just penetrated in the limiting grooves (31), the rod body of the limiting rods (32) at the outer ends of the limiting grooves (31) is penetrated with a transverse sliding groove, the bottom wall of the sliding groove is fixed with an ejection spring (33), and the other end of the ejection spring (33) is fixed with a sliding column (34) which is slidably connected in the sliding groove, the sliding column (34) is abutted against the bottom of the base (3);

the bottom of base (3) still be equipped with first electrical property joint (28) complex control assembly, still be equipped with atmospheric pressure adjusting part and mutual subassembly on jar body (2), put in subassembly, atmospheric pressure adjusting part and mutual subassembly and control by control assembly.

9. The sectional pulse type foam fire extinguisher according to claim 8, wherein the air pressure adjusting assembly comprises a ventilation groove (35), a piston (36), a return spring (37), a permanent magnet (38), an electromagnet (39) and an air pressure sensor (40), the ventilation groove (35) is formed in the side wall of the tank body (2) close to the bottom end of the tank body, the piston (36) is connected in the tank body (2) between the support ring body (4) and the limit ring body (5) in a sliding mode, two ends of the return spring (37) are respectively fixed to the bottom of the piston (36) and the bottom wall of the tank body (2), the permanent magnet (38) is embedded in the piston (36) in a mode that the magnetic field direction is along the central axis direction of the tank body (2), the electromagnet (39) is embedded in the bottom end of the tank body (2) in a mode that the magnetic field direction is along the central axis direction of the tank body (2), the air pressure sensor (40) is arranged at the top of the carrying column (7);

the interaction assembly comprises a display screen (41) arranged on the handle (6), a key module (42) and a third electrical interface (43);

the control assembly comprises a control box (44) arranged at the bottom of the base (3), and a power module (45) and a PCB (46) which are arranged inside the control box (44).

10. A segmented pulsed foam extinguisher according to claim 9, characterized in that a set of firing pins (29) are evenly distributed on the top of the piston (36); the return spring (37) is made of non-magnetic materials, and the upper end and the side end of the permanent magnet (38) and the lower end and the side end of the electromagnet (39) are coated with magnetic shielding covers (30) matched with the permanent magnet.