CN212235703U

CN212235703U - Portable fire extinguisher

Info

Publication number: CN212235703U
Application number: CN202020271835.1U
Authority: CN
Inventors: 肖军帅; 彭洋波; 邢江林; 刘军; 韦秀快; 钱伟杰
Original assignee: Hunan Nanling Fire Technology Co ltd
Current assignee: Hunan Nanling Fire Technology Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-12-29
Anticipated expiration: 2030-03-06

Abstract

A portable fire extinguisher comprises a shell, wherein an ignition device and a fire extinguishing cylinder are arranged in the shell, an opening is formed in the front end of the shell, the ignition device is arranged at the tail end of the shell and is connected with the fire extinguishing cylinder, the fire extinguishing cylinder comprises a chemical bin and a cooling bin which are connected with each other, the chemical bin is a metal ring with threads at one end, a chemical column is arranged in the chemical bin, and the other end of the chemical bin is sealed by a heat-insulating fireproof material; one end of the cooling bin is connected with the threaded end of the medicine bin, the other end of the cooling bin is provided with a nozzle, and the nozzle is matched with the opening position of the front end of the shell. Utilize the utility model discloses, can effectively solve the problem of fire extinguisher spout jam, improve the security that the fire extinguisher used.

Description

Portable fire extinguisher

Technical Field

The utility model relates to a fire extinguishing apparatus technical field, concretely relates to portable fire extinguisher.

Background

At present, the common portable dry powder fire extinguisher on the market generally has the whole weight of four kilograms or five kilograms, and needs to be operated by two hands, and also needs to be inspected annually at regular intervals to prevent the pressure relief failure. By carrying out fire extinguishing, high-temperature, spraying tests, temperature tests and the like on products on the market, we find that part of the products have no cooling bin in structural design, so that the temperature of a nozzle is overhigh when the products are started, even open fire is sprayed out, secondary damage to a user can be caused, and even combustible materials can be ignited; in addition, a part of products adopt a mode of filling cooling substances to cool aerosol gas, but cooling particles (coolant or cooling ceramic) have certain probability to block the nozzle, and once the nozzle is seriously blocked, explosion risks exist during use.

In summary, the conventional portable dry powder fire extinguisher has three problems: (1) the aerosol medicament is unstable in combustion and has a deflagration risk, namely a large amount of gas can be generated instantly, so that a nozzle cannot release the gas in time, the pressure in the device is too high, the bearing limit of the device is broken through, and further explosion occurs; (2) the temperature of the nozzle is too high, even the open fire is sprayed, and the fire extinguishing capability is poor; (3) the filling of the cooling particles is unreasonable, so that the explosion risk exists, and the use safety is poor.

Disclosure of Invention

The utility model aims to solve the technical problem that the not enough of prior art is overcome, provide a fire extinguishing ability reinforce, the difficult jam of spout, and the portable fire extinguisher that the safety in utilization is good.

The technical scheme that the utility model solves the technical problem adopts is that, a portable fire extinguisher comprises a shell, an ignition device and a fire extinguishing cylinder are arranged in the shell, the front end of the shell is provided with an opening, the ignition device is arranged at the tail end of the shell and is connected with the fire extinguishing cylinder, the fire extinguishing cylinder comprises a medicine bin and a cooling bin which are connected with each other, the medicine bin is a metal ring with a thread at one end, a medicine column is arranged in the medicine bin, and the other end is sealed by a heat-insulating fireproof material; one end of the cooling bin is connected with the threaded end of the medicine bin, the other end of the cooling bin is provided with a nozzle, and the nozzle is matched with the opening position of the front end of the shell.

Furthermore, a first spring and a second spring are respectively arranged at two ends of the interior of the cooling bin, a cooling chamber is arranged in the middle of the cooling bin, the cooling chamber is a metal ring, the cooling chamber is separated from the first spring and the second spring through a second metal separation net and a third metal separation net, and a coolant is arranged in the cooling chamber.

Further, ignition includes piezoelectric igniter and electric initiator, the casing tail end cavity is located to piezoelectric igniter major structure, the button of piezoelectric igniter stretches out outside the casing, the electric initiator is fixed in the recess of powder column afterbody, piezoelectric igniter and electric initiator pass through the percussion circuit and connect.

Further, a first metal isolation net is arranged at the joint of the medicine bin and the cooling bin.

Further, the coolant is granular, and the size of the granules is larger than the mesh sizes of the second metal isolation net and the third metal isolation net and smaller than the size of the nozzle.

Further, the casing end is equipped with pull ring and safety lock, and the safety lock is connected to the spacing hole of piezoelectric ignition ware in the casing through the iron wire, takes place the percussion when restriction piezoelectric ignition ware accident receives pressure.

Further, the grain material is aerosol.

Furthermore, a plug is arranged at the nozzle.

Furthermore, operation instruction information, product name information and warning words are arranged on the outer side of the shell.

The utility model discloses under the combined action of aerosol grain and coolant decomposition thing, the particle of putting out a fire that erupts ability of putting out a fire is strong, can effectively solve the problem that fire extinguisher spout blockked up, improves the security that the fire extinguisher used.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a left side view of the embodiment shown in fig. 1.

In the figure: 1. the fire extinguisher comprises a shell, 1-1 parts of pull rings, 1-2 parts of safety buckles, 2 parts of an ignition device, 2-1 parts of a piezoelectric igniter, 2-11 parts of buttons, 2-2 parts of an electric initiator, 2-3 parts of a firing line, 3 parts of a fire extinguishing cylinder, 4 parts of an opening of a shell, 5 parts of a medicine cabin, 5-1 parts of a heat-insulating fireproof material, 5-2 parts of a medicine cabin thread, 5-3 parts of a medicine cabin gap, 6 parts of a cooling cabin, 6-1 parts of a nozzle, 7 parts of a medicine column, 7-1 parts of a groove at the tail part of the medicine column, 7-2 parts of a PVC sheet, 8 parts of a first metal isolation net, 9 parts of a first spring, 10 parts of a second spring, 11 parts of a cooling chamber, 11-1 parts of a coolant, 12 parts of a second metal isolation net, 13 parts of a third metal isolation net, 14 parts of plugs and 15 parts of.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to the attached drawings, the fire extinguishing device comprises a shell 1, an ignition device 2 and a fire extinguishing cylinder 3 are arranged in the shell 1, an opening 4 is formed in the front end of the shell 1, the ignition device 2 is arranged at the tail end of the shell 1 and connected with the fire extinguishing cylinder 3, the fire extinguishing cylinder 3 comprises a chemical bin 5 and a cooling bin 6 which are connected with each other, the chemical bin 5 is a metal ring with threads at one end, a chemical column 7 is wrapped in the chemical bin 5, the other end of the chemical bin is sealed by a heat-insulating fireproof material 5-1, and the heat-insulating fireproof material is resin glue; one end of the cooling bin 6 is connected with the medicine bin thread 5-2 end through a connecting piece 15, the other end is provided with a nozzle 6-1, and the nozzle 6-1 is matched with the opening 4 at the front end of the shell 1.

A first metal isolation net 8 is arranged at the joint of the medicine bin 5 and the cooling bin 6. The two ends of the interior of the cooling bin 6 are respectively provided with a first spring 9 and a second spring 10, and the middle of the interior of the cooling bin is provided with a cooling chamber 11. The cooling chamber 11 is separated from the first spring 9 and the second spring 10 by a second metal separation net 12 and a third metal separation net 13 respectively, and a coolant 11-1 is arranged in the cooling chamber 11. The coolant 11-1 is granular, and the size of the granules is slightly larger than the mesh sizes of the second metal isolation net 12 and the third metal isolation net 13 and is smaller than the size of the nozzle 6-1. The cooling chamber 11 is a metal ring with an outer diameter smaller than the inner diameter of the cooling bin 6, and the outer diameters of the first metal isolation net 8, the second metal isolation net 12 and the third metal isolation net 13 are all smaller than the inner diameter of the cooling bin.

The ignition device 2 comprises a piezoelectric igniter 2-1 and an electric initiator 2-2. The main structure of the piezoelectric igniter 2-1 is arranged in a cavity at the tail end of the shell 1, a button 2-11 of the piezoelectric igniter 2-1 extends out of the shell 1, and the electric initiator 2-2 is arranged in a groove 7-1 at the tail part of the explosive column and is pressed in the groove through a transparent PVC sheet 7-2. The piezoelectric igniter 2-1 and the electric initiator 2-2 are connected through a firing line 2-3, the firing line 2-3 penetrates through the outer side of the medicine bin 5 and is connected to the electric initiator 2-2 sunken in the medicine column 7 through a notch 5-3 in the medicine bin 5. The tail end of the shell 1 is provided with a pull ring 1-1 and a safety catch 1-2, and the safety catch 1-2 is connected to a limiting hole of the piezoelectric igniter in the shell 1 through an iron wire to limit the piezoelectric igniter from being triggered when the piezoelectric igniter is accidentally stressed.

A plug 14 is arranged at the spout 6-1.

The outer side of the shell is provided with operation instruction information, product name information and warning words.

The material of the grain 7 is aerosol.

In the embodiment, by improving the assembly mode of the aerosol grain, the grain 7 is wrapped by a metal material, and the bottom of the grain 7 is sealed by a heat-insulating fireproof material PVC7-2 sheet, so that the grain uniformly and layer by layer burns downwards, high-energy fire extinguishing particles are stably released, and the spraying time is stable; the first metal isolation net 8 is additionally arranged in the cavity in front of the chemical bin 5 and the cooling bin 6 to filter fire extinguishing particles, so that flame generated by combustion of aerosol chemical columns 7 is dispersed, the height of the flame is effectively reduced, and the flame is controlled not to be directly sprayed out from a nozzle; meanwhile, the cooling bin 6 is internally provided with coolant particles, so that the temperature of high-heat aerosol gas is effectively reduced, and the high-temperature aerosol gas decomposes the coolant particles to generate

And

(steam) participates in fire extinguishing, so that the fire extinguishing capability of the device is further improved; the second and third

metal separation nets

12 and 13 separate the coolant by changing the size and assembly of the coolant11-1 is fixed in the cooling bin 6; the particle size of the coolant 11-1 is slightly larger than the mesh size of the second metal separation net 12 and the third metal separation net 13 and the size of the nozzle 6-1, so that the nozzle 6-1 is prevented from being blocked while the cooling effect is ensured; when the device is started, the pressure generated by the combustion of the grain 7 can form a buffer zone in the cooling bin 6 through the elastic deformation of the first compression spring 9 and the second spring 10, and the fire extinguishing particles are uniformly released.

The working process is as follows:

when the utility model is needed to be started, the safety buckle 1-2 at the tail end of the fire extinguisher is firstly released, the start button 2-11 is pressed to act on the piezoelectric igniter 2-1, the electric energy is transmitted to the electric initiator 2-2 through the firing line 2-3, the sparks generated by the electric initiator 2-2 directly act on the explosive column 7 in the explosive bin 5, the aerosol explosive column 7 is ignited, under the common protection of the metal explosive bin 5 and the heat-insulating fireproof material PVC sheet 7-2, the aerosol explosive column 7 burns layer by layer to release high-energy fire extinguishing particles, and the burning flame disperses the flame through the first metal separation net 8 to reduce the height of the flame; high-energy fire extinguishing particles are generated, high pressure is formed in the cooling bin 6, the first spring 9 pushes the cooling bin 6 to buffer towards the position of the nozzle 6-1, a large number of high-energy fire extinguishing particles pass through the cooling bin 6, the coolant 11-1 is decomposed, meanwhile, the temperature of aerosol gas is reduced, after the pressure in the cooling bin 6 is restored to be balanced, the cooling bin 6 resets under the action of the second pressure spring 10, the pressure in the cooling bin 6 pushes the plug 14 at the nozzle 6-1 open, and low-temperature aerosol fire extinguishing particles are sprayed towards the opening 4 of the shell 1.

Various modifications and variations of the embodiments of the present invention may be made by those skilled in the art, and they are still within the scope of the present invention, provided they are within the scope of the claims and their equivalents.

What is not described in detail in the specification is prior art that is well known to those skilled in the art.

Claims

1. The utility model provides a portable fire extinguisher, includes the casing, be equipped with ignition and a fire extinguishing section of thick bamboo in the casing, the casing front end is equipped with the opening, ignition locates the casing tail end and is connected its characterized in that with a fire extinguishing section of thick bamboo: the fire extinguishing cylinder comprises a chemical bin and a cooling bin which are connected with each other, the chemical bin is a metal circular ring with one end provided with threads, a chemical column is arranged in the chemical bin, and the other end of the chemical bin is sealed by a heat-insulating fireproof material; one end of the cooling bin is connected with the threaded end of the medicine bin, the other end of the cooling bin is provided with a nozzle, and the nozzle is matched with the opening position of the front end of the shell.

2. The portable fire extinguisher as claimed in claim 1, wherein: the cooling chamber is a metal ring, the cooling chamber is separated from the first spring and the second spring through a second metal isolation net and a third metal isolation net, and a coolant is arranged in the cooling chamber.

3. The portable fire extinguisher according to claim 1 or 2, wherein: ignition includes piezoelectric ignition ware and electric initiator, the casing tail end cavity is located to piezoelectric ignition ware major structure, the button of piezoelectric ignition ware stretches out outside the casing, the electric initiator is fixed in the recess of powder column afterbody, piezoelectric ignition ware and electric initiator pass through the firing circuit and connect.

4. The portable fire extinguisher according to claim 1 or 2, wherein: and a first metal isolation net is arranged at the joint of the medicine bin and the cooling bin.

5. The portable fire extinguisher as claimed in claim 3, wherein: and a first metal isolation net is arranged at the joint of the medicine bin and the cooling bin.

6. The portable fire extinguisher as claimed in claim 2, wherein: the coolant is granular, and the size of the granules is larger than the mesh sizes of the second metal isolation net and the third metal isolation net and smaller than the size of the nozzle.

7. The portable fire extinguisher according to claim 1 or 2, wherein: the casing end is equipped with pull ring and safety lock, and the safety lock is connected to the spacing hole of piezoelectric ignition ware in the casing through the iron wire, takes place the percussion when restriction piezoelectric ignition ware accident receives pressure.

8. The portable fire extinguisher according to claim 1 or 2, wherein: the grain material is aerosol.

9. The portable fire extinguisher according to claim 1 or 2, wherein: and a plug is arranged at the nozzle.