KR101860229B1 - Nozzle for fire extinguisher - Google Patents

Nozzle for fire extinguisher Download PDF

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Publication number
KR101860229B1
KR101860229B1 KR1020160158301A KR20160158301A KR101860229B1 KR 101860229 B1 KR101860229 B1 KR 101860229B1 KR 1020160158301 A KR1020160158301 A KR 1020160158301A KR 20160158301 A KR20160158301 A KR 20160158301A KR 101860229 B1 KR101860229 B1 KR 101860229B1
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KR
South Korea
Prior art keywords
tube
nozzle
water
pipe
fire
Prior art date
Application number
KR1020160158301A
Other languages
Korean (ko)
Inventor
김창
오석범
Original Assignee
주식회사 파이어시스
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Publication date
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Priority to KR1020160158301A priority Critical patent/KR101860229B1/en
Application granted granted Critical
Publication of KR101860229B1 publication Critical patent/KR101860229B1/en

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/10—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in the form of a fine jet, e.g. for use in wind-screen washers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/40—Filters located upstream of the spraying outlets

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)

Abstract

Provided is a nozzle for a fire extinguisher having non-spray and spray functions. The nozzle for the fire extinguisher comprises: a fixed tube mounted and fixed on a nozzle body and having a flow path formed inside the fixed tube for passing fire water through the nozzle body; a variably revolving tube screw-coupled to an outer diameter part of the fixed tube and moving in forward and backward directions along the fixed tube while rotating in forward and backward directions; a spray head mounted and fixed on the front of the variably revolving tube and having a spray nozzle mounted at the center and at least one non-spray nozzle formed along the outer circumferential surface thereof; a pattern regulating tube inserted into an inner space of the variably revolving tube and mounted and fixed to the front of the fixed tube; a direct flow channel penetrating through the inside of the pattern regulating tube to supply fire water to the spray nozzle depending on rotation and movement of the variably revolving tube; at least one spray channel formed along the outer circumference of the pattern regulating tube to supply the fire water passing the direct flow channel to the non-spray nozzle depending on rotation and movement of the variably revolving tube; and a wire filter closely fixed on the inner face of the direct flow channel to filter foreign matters contained in the fire water passing through the spray channel. Therefore, the nozzle for the fire extinguisher is capable of lengthening the lifespan of the filter by automatically discharging deposits accumulated on the filter to the outside.

Description

{NOZZLE FOR FIRE EXTINGUISHER} WITH FINE SPILL AND SPRAYING FUNCTION

The present invention relates to a nozzle for fire extinguishing which has a pulverizing and spraying function. More particularly, the present invention relates to a fire extinguisher having a function of spraying a foreign substance contained in fire extinguishing water through a filter, The present invention relates to a nozzle for fire extinguishing which has a pulverizing and spraying function for increasing the service life of the filter by automatically discharging it to the outside through a jetting nozzle.

As is well known, the fire-fighting injection nozzle means means for injecting high-pressure fire-fighting water into a fire site. The fire-fighting injection nozzle includes a fire extinguishing nozzle having a vertically connected vertical A sprinkler used in connection with piping, and a nozzle connected to a fire hose provided in a fire truck or a fire hydrant.

As a representative technique related to the latter nozzle (hereinafter referred to as a fire nozzle), there is a registered utility model registration No. 0226925 (name: fire nozzle) of the Korean Intellectual Property Office.

However, the nozzle shown in the above publication has a problem in that it can not be used only in the area where the oil fire occurs. Therefore, in case of oil fires, it is suppressed not by water but by halon or carbonic acid gas. The halon or carbonic acid gas is harmful to the human body. In particular, carbonic acid gas has a fatal effect on the apparatus, .

On the other hand, as a prior art for solving the above-mentioned problem, Korean Patent Application Publication No. 10-2007-0103795 (hereinafter referred to as prior art) is exemplified.

The prior art includes a handle, a distributor pipe coupled to the distal end of the handle, an injection passage formed in the distribution pipe and communicating with the water discharge pipe for the fire fighting water, first and second differential oil- And a second rotary shaft which is connected to the first rotary shaft and the second rotary shaft and passes through the first rotary shaft and the second rotary shaft, A first and a second non-fluid coupling flow path and a first and second non-fluid coupling flow paths which selectively communicate with the closed injection flow path and the first and second non-fluid flow paths; A spray pipe which is installed in the non-split pipe and through which the water for fire fighting inflow through the spray passage is passed, and a spray pipe for spraying water on the tip of the spray pipe, And and that is configured to include the fine powder-free, and the differential for discharging the number of fire-fighting passed through the pipe to a fine powder-free form solid, a nozzle head has nozzle openings are formed for one discharge the number of fire to the spray form has passed through the spray pipe to the base.

However, since the digestive water used for the evolution of fire is not a drinking water that can be directly consumed by a person, it is injected directly into the fire-generating area without passing through a separate purification function, so that the foreign matter mixed in the digestive- There is a problem that the spraying function is not implemented well.

Conventional fire extinguishing fire extinguishing fire extinguishers are designed to regulate the amount of radiation and angle of fire by adjusting the reflector of one central conduit, so that it is difficult to inject fire extinguisher in a form suitable for the size and shape of the fire because the radiation pattern is monotonous. The second damage is serious because of fire suppression because it emits water.

For this reason, in a place where expensive equipment such as a semiconductor factory or a communication equipment room is located, there is a fear of secondary damage due to fire suppression in the initial fire, so that the conventional fire hydrant nozzle can not be used effectively. When using the conventional fire hydrant nozzle, it spreads to a large fire because it can not suppress the initial fire because of the spread of fire.

Therefore, there is a desperate need for a nozzle for exclusive use of micropowder which has the radiation amount and function of the conventional hydrant nozzle and can be pulverized at a low pressure.

Document 1: Registered Utility Model Registration No. 0226925 Document 2: Korean Patent Application Publication No. 10-2007-0103795

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a fire extinguisher having a fine particle spraying function and a spraying function for preventing clogging of the non-atomizing nozzle by filtering foreign matters contained in the water for fire extinguishing. .

Another object of the present invention is to provide a fire extinguisher having a fine particle spraying function and a spraying function for automatically discharging sediments accumulated on a filter to outside through a direct spraying nozzle.

Another technical problem to be solved by the present invention is to provide a fire extinguishing system which has a spraying property and has the same operation method as that of a fire injection nozzle, And to provide a fire extinguishing system with a technical task as a convenience.

According to an aspect of the present invention, there is provided a fire extinguishing gun having a pulverizer and a spraying function, the fire extinguisher having a nozzle body and a fixing pipe fixedly installed on the nozzle body and having a passage through which the water is passed through the nozzle body, A variable rotary tube that is threadedly coupled to the outer diameter of the fixed tube and moves forward and backward while riding in the fixed tube in the forward and reverse directions while being fixed to the front of the variable rotary tube, A pattern control tube fixedly installed in front of the fixed tube in a state of being inserted into a space formed inside the variable rotation tube; And a direct flow passage for supplying the water for fire fighting to the injection nozzle according to the rotational movement of the variable rotary pipe, A spray passage formed at least one passage formed along an outer diameter of the pattern control tube and supplied with water for fire fighting to pass through the direct flow passage in accordance with rotational movement of the variable rotary tube to the fine mist nozzle and an inner face of the direct flow passage, And a wire filter for filtering foreign matter contained in the water for fire extinguishing through the spray passage.

The protruding piece for supplying and cutting off the water for the fire water is further protruded from the outer circumference of the pattern control tube in close contact with and close to the inner surface of the space of the variable rotary tube according to the forward and backward rotational movement of the variable rotary tube, .

And a blocking plate for opening and closing the inlet of the direct flow passage in accordance with the forward and backward movement of the variable rotary tube is further provided on the inner surface of the injection head.

In the present invention, a cylindrical wire filter is provided on the inner surface of the direct-current flow path of the pattern control tube to remove foreign matter contained in the water for fire-fighting water supplied to the micropump nozzle, thereby solving the problems such as clogging of the micropump nozzle The sediment accumulated on the wire filter is automatically washed away by the water pressure of the water for fire water supplied to the injection nozzle, thereby increasing the service life of the wire filter and eliminating the maintenance inconveniences such as replacing the filter.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a three-dimensional exploded view of a configuration of a nozzle according to a preferred embodiment of the present invention; FIG.
Fig. 2 is an exploded sectional view of Fig. 1; Fig.
Figure 3 is an assembled sectional view of Figure 2;
4 is a view showing the state of use of the nozzle for spraying the water for fire fighting water into a mist form.
5 is a view showing the state of use of the nozzle for spraying the water for fire fighting in the direct form.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments which may be presented by the present invention are replaced by descriptions in the constitution of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a nozzle in accordance with a preferred embodiment of the present invention; FIG. 2 is an exploded cross-sectional view of FIG. 1;

1 to 3, the fire extinguisher having the pulverizing and spraying function of the present invention mainly includes a nozzle body 10, a fixing pipe 20, a variable rotary pipe 30, an injection head 40, And a pattern control tube 50. [

The nozzle body 10 constitutes the external shape of the nozzle for fire extinguishing having a pulverizing and spraying function. The pipe for supplying water for fire extinguishing water is connected to the rear of the nozzle body 10, and the fire extinguishing water supplied from the pipe is sprayed Or means for differentiating into mist form is provided.

The fixing pipe 20 is a tube that is screwed and fixed to the front of the nozzle body 10 and a passage for passing the water to be supplied from the nozzle body 10 is formed in the fixing pipe 20 .

A male screw thread 24 is formed on the outer diameter of the fixed tube 20 and a female screw thread 34 formed on the inner surface of the inner space 32 of the variable rotary tube 30 is fastened to the male screw thread 24, The variable rotary pipe 30 is screwed into the outer diameter of the fixed pipe 20 so that the variable rotary pipe 30 is rotated (i.e., spirally moved) in the forward and backward directions from the outer diameter of the fixed pipe 20, Possibly configure the connection.

The variable rotary pipe 30 is screwed on the outer diameter of the fixed pipe 20 and moves in the forward and backward directions by riding the male thread 24 of the fixed pipe 20 according to forward and reverse rotation, .

The variable rotation tube 30 is formed with a space 32 through which the fixing pipe 20 is inserted so that a female thread 34 is formed along the inner surface of the space 32, 34 are screwed into the rinsing thread 24 formed on the outer diameter of the fixing pipe 20.

It is preferable that the front of the space 32 formed in the variable rotary pipe 30 is formed so as to be diffused so that the diameter of the space is gradually widened. So that it can be effectively supplied to the non-atomizing nozzle 44 formed on the outer circumferential surface of the injection head 40.

The injection head 40 is fastened and screwed to the front of the variable rotation pipe 30. The injection head 40 causes the water for spraying water to be pulverized or sprayed or simultaneously pulverized and sprayed.

A spray nozzle 42 is formed at the front center of the spray head 40. The injection nozzle 42 injects the fire water supplied through the direct flow passage 52 of the pattern control pipe 50 into the fire occurrence area in a direct manner.

At least one or more non-dispersion nozzles 44 are formed on the front outer circumferential surface of the injection head 40. The non-aqueous spray nozzle 44 differentiates the fire-fighting water supplied through the spray passage 54 of the pattern control tube 50 into a fire occurrence area in the form of a mist.

A blocking plate (46) is provided at the rear center of the ejection head (40). The blocking plate 46 selectively contacts the direct flow passage 52 of the pattern control tube 50 and opens and closes the direct flow passage 52 as the variable rotary tube 30 moves forward and backward.

The pattern control pipe 50 selectively supplies the water for fire protection which has passed through the flow path 22 of the fixing pipe 20 to the injection nozzle 42 or the mist nozzle 44 of the injection head 40, And is simultaneously supplied to the spray nozzle 42 and the non-dispersion nozzle 44.

The pattern adjusting pipe 50 is formed in the shape of a pipe in the form of a cylinder and has a straight passage 52 formed at the center thereof and at least one spray passage 54 communicating with the direct passage 52 through the passage.

The pattern control tube 50 is fixed to the front of the fixing tube 20 in a state of being inserted into the space 32 of the variable rotation tube 30. The pattern control tube 50 and the fixing tube 20 Are screwed together to fix the pattern adjusting pipe 50 in front of the fixing pipe 20.

A projecting piece 56 protrudes from the central portion of the pattern control tube 50. The protruding piece 56 is closely contacted with the inner surface of the space 32 of the variable rotary tube 30 and is released from the inner surface of the space 32 while the variable rotary tube 30 is rotationally moved forward And the water for fire fighting is passed through the mist nozzle 44.

A chamber 55 for primarily storing the water for spraying the water passed through the spray passage 54 is formed between the spray passage 54 of the pattern control tube 50 and the space 32 of the variable rotary tube 30 And the water for fire prevention stored in the chamber 55 is released from the contact between the projecting piece 56 and the inner surface of the space 32 of the variable rotary pipe 30, 44, respectively.

A cylindrical wire filter 60 is inserted into the direct flow passage 52 of the pattern control tube 50. The wire filter 60 is closely attached to the inner surface of the direct flow path 52 of the pattern control tube 50 and flows into the direct flow path 52 of the pattern control tube 50, It is possible to filter various kinds of foreign substances contained in the water for fire supply supplied to the non-aqueous spray nozzle 44 of the spray head 40 through the spray passage 54 and to block the use of the non-spray nozzle 44 It is a means provided for the purpose of prevention.

Particularly, in the present invention, since the wire filter 60 is formed in a cylindrical shape and is closely attached to the inner surface of the direct flow path 52 of the pattern control tube 50, The accumulated sediment is automatically washed away by the water pressure of the water for fire water supplied to the spray nozzle 42 through the direct flow path 52, so that accumulation of sediment in the wire filter 60 can be naturally removed, The service life of the wire filter 60 can be increased without the same work hassle.

The wire filter 60 is inserted and fixed on the inner surface of the direct flow passage 52 of the pattern control tube 50. The wire filter 60 is fastened to the wire filter 60 by a water- (57) are formed integrally.

Hereinafter, with respect to the operation of jetting the water for fire fighting water in the form of mist or sprayed in the form of mist or the spraying of the water in the form of mist and straight powder through the fire extinguishing nozzle having the pulverizing and spraying function of the present invention, Will be described with reference to FIGS.

4 is a view showing the use state of the nozzle for spraying the water for fire fighting into mist form.

As shown in FIG. 4, when the water for fire fighting water is to be finely dispersed in mist form using the nozzle of the present invention, if the variable rotary pipe 30 is held in one direction (counterclockwise in the drawing) The inner surface of the space 32 of the variable rotary tube 30 and the projecting pieces 56 of the pattern control tube 50 are released from contact with each other.

When the nozzle body 10 is operated in this state, the water for fire water flows into the direct flow path 52 of the pattern control tube 50 through the flow path 22 of the fixed tube 20, The protrusions 56 of the pattern control tube 50 and the space 32 of the variable rotation tube 30 are separated from each other after being temporarily stored in the chamber 55 through the spray passage 54 formed in the outer diameter. Is supplied to the mist nozzle 44 of the spray head 40 via a gap formed between the inner surfaces of the spray nozzle 40 and then flows into the mist nozzle 44 to be misted to suppress the fire. At this time, the water is passed through the direct current passage 52 of the pattern control tube 50 before passing through the spray passage 54, and the foreign matter is filtered by the wire filter 60, Thereby eliminating the problem of being clogged by foreign matter.

5 is a view showing a use state of the nozzle for spraying the water for fire fighting in a straight shape.

As shown in FIG. 5, when the fire water is injected in a straight shape using the nozzle, if the variable rotary tube 30 is rotated in the other direction (clockwise direction in the drawing) by holding the variable rotary tube 30, So that the inner surface of the space 32 of the variable rotary tube 30 and the projecting pieces 56 of the pattern control tube 50 are in close contact again.

When the lever of the nozzle body 10 is pulled in this state, the water for fire water flows into the direct flow passage 52 of the pattern control pipe 50 through the flow passage 22 of the fixing pipe 20, And is sprayed in the form of a straight line through the injection nozzle 42 of the spray gun.

At this time, the water for fire fighting inflow into the direct flow path 52 of the pattern control tube 50 is discharged to the outside through the spray passage 54 formed in the outer diameter of the pattern control tube 50, The water is not supplied to the non-dispersion nozzle by the inner surface of the space 32 and the projecting pieces 56 of the pattern control tube 50, so that the water is sprayed only in the direct shape.

In addition, the deposition layer of foreign matter accumulated on the inner surface of the wire filter 60 is naturally released by the water pressure of the water for fire prevention while spraying the water for fire protection in the direct form, and is sprayed to the outside through the injection nozzle 42, The wire filter 60 can be used for a long time even if it is not separately managed.

Meanwhile, when spraying the water for fire fighting water simultaneously in the form of mist and straight powder using the nozzle of the present invention, the variable rotation pipe 30 is appropriately rotated as shown in FIG. 3, A clearance is formed between the rotary valve 56 and the space 32 of the variable rotary pipe 30 and the direct flow passage 52 of the pattern control pipe 50 is not blocked by the blocking plate 46, The water for fire fighting is simultaneously supplied to the injection nozzle 42 and the mist nozzle 44 of the injection head 40 so that the water for fire fighting can be sprayed simultaneously in the form of mist and direct.

10: casing body 20: fixed pipe
22: Euro 24: Male threads
30: variable rotating tube 32: space
34 Female thread 40: Injection head
42: jet nozzle 44: differential nozzle
50: pattern control tube 52:
54: Spray flow channel 56:
60: Wire filter

Claims (3)

In a fire extinguisher having a pulverizing and spraying function,
A casing body (10);
A fixed pipe (20) fixed to the nozzle body (10) and having a passage (22) passing through the nozzle body (10) through which the water flows;
A variable rotary pipe (30) screwed on the outer diameter of the fixed pipe (20) and rotating forward and backward on the fixed pipe (20) while rotating in the forward and reverse directions;
An injection head fixed to the front of the variable rotary pipe 30 and provided at the center thereof with an injection nozzle 42 and at least one or more non-dispersion nozzles 44 along the outer peripheral surface thereof;
A pattern control pipe 50 fixedly installed in front of the fixed pipe 20 in a state of being inserted into a space 32 formed inside the variable rotary pipe 30;
A direct flow passage (52) penetrating the inside of the pattern control pipe (50) and supplying the water to the injection nozzle (42) in accordance with the rotation of the variable rotation pipe (30);
At least one passage formed along the outer diameter of the pattern adjusting pipe 50 and supplying the water for fire fighting water passing through the direct flow passage 52 to the fine mist nozzle 44 in accordance with the rotation of the variable rotary pipe 30 A spraying flow path 54 for spraying the water;
And a wire filter (60) made in a cylindrical shape and tightly fixed to the inner surface of the direct flow path (52) and filtering out foreign matters contained in the water for fire extinguishing through the spray flow path (54);
The outer diameter of the pattern control tube 50 is closely and tightly adhered to the inner surface of the space 32 of the variable rotation tube 30 in accordance with the forward and backward rotational movements of the variable rotation tube 30, A protruding piece 56 protruding to cut off supply and supply of the water for fire fighting;
A blocking plate 46 is provided on the inner surface of the injection head 40 to open and close the inlet of the direct flow passage 52 in accordance with the forward and backward movement of the variable rotary pipe 30;
A stepped portion 57 for fastening the wire filter 60 is integrally formed on the inner surface of the direct flow passage 52 of the pattern control tube 50 so that the wire filter 60 is not pushed by the water pressure of the water for fire fighting ;
A chamber 55 for primarily storing the water for spraying the water passed through the spray passage 54 is disposed between the spray passage 54 of the pattern control tube 50 and the space 32 of the variable rotary tube 30 Characterized in that the fire extinguisher has a pulverizing and spraying function.





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KR1020160158301A 2016-11-25 2016-11-25 Nozzle for fire extinguisher KR101860229B1 (en)

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Application Number Priority Date Filing Date Title
KR1020160158301A KR101860229B1 (en) 2016-11-25 2016-11-25 Nozzle for fire extinguisher

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KR101860229B1 true KR101860229B1 (en) 2018-06-29

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102075290B1 (en) * 2019-04-11 2020-02-07 주식회사 파이어스 Fire fighting nozzle having mixing air
WO2021206205A1 (en) * 2020-04-10 2021-10-14 주식회사 파이어시스 Collision-type fine spray fire-fighting fog nozzle
KR102462943B1 (en) 2022-05-18 2022-11-04 (주) 오행 Anti-twisting and axial light pipe window nozzles rotatable with fire hose connected
KR20230168712A (en) 2022-06-08 2023-12-15 김여운 Fire-fighting nozzle
WO2024001446A1 (en) * 2022-06-30 2024-01-04 烟台市北海海洋工程技术有限公司 Nozzle structure used for fire-fighting, and helicopter platform fire-fighting system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5229573B2 (en) * 2009-04-28 2013-07-03 株式会社Ｌｉｘｉｌ Strainer unit and strainer cleaning method
KR101585877B1 (en) * 2015-07-08 2016-01-22 주식회사 파이어스 A nozzles for fire extinguishing with mist spray function

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5229573B2 (en) * 2009-04-28 2013-07-03 株式会社Ｌｉｘｉｌ Strainer unit and strainer cleaning method
KR101585877B1 (en) * 2015-07-08 2016-01-22 주식회사 파이어스 A nozzles for fire extinguishing with mist spray function

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102075290B1 (en) * 2019-04-11 2020-02-07 주식회사 파이어스 Fire fighting nozzle having mixing air
WO2021206205A1 (en) * 2020-04-10 2021-10-14 주식회사 파이어시스 Collision-type fine spray fire-fighting fog nozzle
KR20210126279A (en) * 2020-04-10 2021-10-20 주식회사 파이어시스 impact type water mist fire nozzle
KR102466642B1 (en) * 2020-04-10 2022-11-15 주식회사 파이어시스 impact type water mist fire nozzle
KR102462943B1 (en) 2022-05-18 2022-11-04 (주) 오행 Anti-twisting and axial light pipe window nozzles rotatable with fire hose connected
KR20230168712A (en) 2022-06-08 2023-12-15 김여운 Fire-fighting nozzle
WO2024001446A1 (en) * 2022-06-30 2024-01-04 烟台市北海海洋工程技术有限公司 Nozzle structure used for fire-fighting, and helicopter platform fire-fighting system

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