CN109224353A - A kind of fire-fighting fountain head for deduster - Google Patents

A kind of fire-fighting fountain head for deduster Download PDF

Info

Publication number
CN109224353A
CN109224353A CN201811027117.3A CN201811027117A CN109224353A CN 109224353 A CN109224353 A CN 109224353A CN 201811027117 A CN201811027117 A CN 201811027117A CN 109224353 A CN109224353 A CN 109224353A
Authority
CN
China
Prior art keywords
plate
hole
fire
deduster
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811027117.3A
Other languages
Chinese (zh)
Other versions
CN109224353B (en
Inventor
何利锋
欧阳明辉
张志霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU RENHE ENVIRONMENTAL EQUIPMENTS CO Ltd
Original Assignee
JIANGSU RENHE ENVIRONMENTAL EQUIPMENTS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU RENHE ENVIRONMENTAL EQUIPMENTS CO Ltd filed Critical JIANGSU RENHE ENVIRONMENTAL EQUIPMENTS CO Ltd
Priority to CN201811027117.3A priority Critical patent/CN109224353B/en
Publication of CN109224353A publication Critical patent/CN109224353A/en
Application granted granted Critical
Publication of CN109224353B publication Critical patent/CN109224353B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • A62C37/08Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10Releasing means, e.g. electrically released
    • A62C37/11Releasing means, e.g. electrically released heat-sensitive
    • A62C37/16Releasing means, e.g. electrically released heat-sensitive with thermally-expansible links
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C31/00Delivery of fire-extinguishing material
    • A62C31/28Accessories for delivery devices, e.g. supports

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention discloses a kind of fire-fighting fountain heads for deduster, including spray head frame and splash box, spray head frame lower end is equipped with pedestal, first through hole is offered in the pedestal, the splash box includes disk and the equally distributed splatter slot of disk surrounding, the disk is fixedly connected with the upper end of spray head frame, the pedestal is equipped with slot, the open end of the first through hole is equipped with the plate matched with the slot, and the plate is equipped with the second through-hole matched with the first through hole position;The base top surface is equipped with the bimetal part contacted with plate, and one end of plate is arranged in the bimetal part, and contradicts with it, for pushing plate to be aligned the second through-hole on plate with first through hole.Heated component is used as using the bimetal part of Self-resetting, it is resistance to fall, it is hardly damaged, fire behavior is eliminated temperature and reduced, and bimetal part resets, and the manual plate that slides is again sealed off through-hole, and no replacement is required for fire-fighting fountain head, can reuse.

Description

A kind of fire-fighting fountain head for deduster
Technical field
The present invention relates to fire-fighting equipment technical fields, and in particular to a kind of fire-fighting fountain head for deduster.
Background technique
Fire-fighting spraying head is used for spraying system of fire fighting, and when a fire, water is spilt by spray head splash box to go out Fire.Applicator under the action of heat, is started automatically by scheduled temperature range, or is opened according to fire signal by control equipment It is dynamic, and by a kind of spray head of the watering shape of design and flow fire extinguishing water, bulb sprinkler head is a kind of common fire-fighting Spray head, temperature-sensitive element be glass marble, when spray head is heated, since the working solution in glass marble is had an effect, make sphere burst and It opens.But vitreum bursts, which only reinstalls new fire-fighting fountain head, moreover, because in fire-fighting fountain head Equipped with vitreum, glass is fragile, is easily damaged during transport or installation, prevents fountain head from using, can only pacify again New fountain head is filled, the waste of fountain head is caused, increases cost.
Summary of the invention
It is an object of the present invention to overcome defect existing in the prior art, providing one kind can be reused, and transport The defeated fire-fighting fountain head for deduster conveniently, safely, the spray head is in the case where fire behavior is destroyed, additionally it is possible to answer plate Position reuses.
To achieve the above object, the technical scheme is to design a kind of fire-fighting fountain heads for deduster, including Spray head frame and splash box, spray head frame lower end are equipped with pedestal, offer first passed through for water flow in the pedestal Through-hole, the splash box include disk and the equally distributed splatter slot of disk surrounding, and the upper end of the disk and spray head frame is solid Fixed connection, the axis of the disk are overlapped with the axis of through-hole, and the pedestal is equipped with slot, and setting matches in the slot Plate, the plate is equipped with the second through-hole for matching with the first through hole position;The base top surface is equipped with and inserts The bimetal part of plate contact, one end of plate is arranged in the bimetal part, and contradicts with it, for pushing plate to make to insert The second through-hole on plate is aligned with first through hole.Fountain head is mounted on the top in room, warehouse or other spaces, when generation fire When, indoor temperature increases, and the coefficient of expansion of bimetallic section active layers is greater than the coefficient of expansion of passive layer, the shape of active layers Become larger in the deformation of passive layer, to keep bimetallic section whole to passive layer curving, plate is pushed to slide along slot, the Two through-holes are aligned with first through hole, and water sprays out, and sprinkling diffusion around, realizes the work of fire extinguishing under the action of splash box With.When fire behavior is destroyed, and air themperature reduces, the reduction of bimetallic section resets, and hand-reset plate recloses through-hole, inserts The trough rim of slot and the edge of plate contradict, and downward pressure is generated to plate, improve plate to the leakproofness of first through hole.
Preferred technical solution is that the bimetal part includes bimetal leaf and support frame, and the bimetal leaf includes Welding section and bimetallic section, the welding section is fixed with tube chamber welds with base or welding section is welded and fixed with support frame, the bimetallic Section includes active layers and passive layer, and the passive layer is contradicted towards plate, and with plate one end.
Preferred technical solution is that the bimetal part includes bimetal leaf, the push rod perpendicular to base plane setting With the body cradle being arranged on base top surface, the bimetal leaf includes the welding section of upper end and the bimetallic section of lower end, described Bimetallic section includes active layers and passive layer, and the welding section of the bimetal leaf is weldingly fixed on spray head frame or body cradle, One end of the push rod and passive layer contradict and are parallel to the plane of the bimetallic section, and the other end of the push rod is inserted with described One end of plate contradicts, and the body cradle and push rod constitute rotation articulated section, and the rotation articulated section and push rod are close to plate one end Distance be less than rotation articulated section and push rod far from plate one end at a distance from.Push rod combines the structure to form similar lever with body cradle Part is pressed in one end of push rod after bimetallic section deformation, the other end and plate end thereof contacts of push rod simultaneously push plate, makes second to lead to Hole is aligned with first through hole, and water sprays out, and the component of similar lever, the deformation strength for being exaggerated bimetal leaf pushes away plate It is dynamic, the amount of water sprayed of fountain head is improved, the performance of fire extinguishing is increased.
Further preferred technical solution is that the slot is equipped with postive stop baffle far from one end of the bimetal part, The postive stop baffle is equal to the plate far from bimetal part one end and the second through-hole at a distance from the first through hole center of circle The distance between center of circle.Postive stop baffle can limit the sliding distance for stopping plate, avoid excessive slip, make second on plate to lead to Hole is not overlapped or partially overlaps with first through hole, influences the water yield in through-hole, reduces extinguishing property.
Further preferred technical solution is that the end of the plate is equipped with handle.Plate is equipped with handle, convenient for plate Reset artificially is stirred, reseals through-hole.
Further preferred technical solution is that the bimetallic section midline position is equipped with through hole, and the through hole is circle Shape or curved shape or rectangle.The intermediate position of bimetallic section is equipped with hole, reduces bimetallic section in the material at intermediate position, is formed The flex area of one easy bending, can critical point quick response to temperature change, bimetallic section reaction precision can be improved.
Further preferred technical solution is that the through hole is set as multiple, and is distributed in linear array.Multiple through-holes Setting make bimetallic section be easier to bend, further increase precision, avoid accidentally spraying, delay spray or the case where do not spray, together When, the cost of bimetal part manufacture is also reduced, is increased economic efficiency.
Further preferred technical solution is, the edge of the splatter slot is equipped with several comb teeth, and the comb teeth is perpendicular to splashing Scattered groove bottom is uniformly distributed.Comb teeth can effective dispersing water flow, increase the spraying range of spray head, improve the fire extinguishing of spray head Performance.
Further preferred technical solution is that the first through hole periphery is equipped with annular groove, and the annular groove is embedded If sealing ring, the outer side contacts of the second through-hole on the sealing ring and the plate.The setting of sealing ring improves plate and first Sealing performance between through-hole reduces the case where water is leaked from plate edge, further improves the stabilization of fountain head Property.
Further preferred technical solution is, the bottom surface first through hole of the pedestal is externally provided with the thread barrel for installation. It is attached using thread barrel and fire extinguisher canvas hose, realizes the fixed effect of fountain head Fast Installation, save the peace of fountain head ETL estimated time of loading improves work efficiency.
The advantages and beneficial effects of the present invention are: the configuration of the present invention is simple it is firm, it is safe and reliable, uniformly discharge it is excellent Point is used as heated component using the bimetal part of Self-resetting, resistance to fall, and is hardly damaged, after fire behavior is eliminated, temperature is reduced, double Metal component resets, and slides plate manually and is again sealed off first through hole, no replacement is required for fire-fighting fountain head, can reuse.It is double Metal segments middle position be equipped with through-hole, make bimetallic section be easier bend, further increase precision, avoid accidentally spray, delay spray or The case where not spraying, meanwhile, the cost of bimetal part manufacture is also reduced, is increased economic efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 1 fountain head pedestal of the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 2;
In figure: 1, pedestal;2, slot;3, plate;4, the second through-hole;5, bimetal part;501, active layers;502, passive Layer;503, welding section;6, support frame, 7, postive stop baffle;8, first through hole;9, push rod;10, body cradle;11, articulated section is rotated.
Specific embodiment
With reference to the accompanying drawings and examples, further description of the specific embodiments of the present invention.Following embodiment is only For clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment 1
As shown in Figure 1, the present invention is a kind of fire-fighting fountain head for deduster, including spray head frame and splash box, institute It states spray head frame lower end and is equipped with pedestal 1, offer the first through hole passed through for water flow, the splash box packet in the pedestal 1 Disk and the equally distributed splatter slot of disk surrounding are included, the disk is fixedly connected with the upper end of spray head frame, the disk Axis is overlapped with the axis of through-hole, and the pedestal 1 is equipped with slot 2, and the plate 3 that setting matches in the slot 2 is described to insert Plate 3 is equipped with the second through-hole 4 matched with the first through hole position;The base top surface is equipped with the double gold contacted with plate Metal elements, one end of plate is arranged in the bimetal part, and contradicts with it, for pushing plate to make second on plate to lead to Hole is aligned with first through hole.
The bimetal part includes bimetal leaf 5 and support frame 6, and the bimetal leaf 5 includes welding section 503 and double gold Belong to section, the welding section is fixed with tube chamber welds with base or welding section is welded and fixed with support frame, and the bimetallic section includes active layers 501 and passive layer 502, the passive layer is contradicted towards plate, and with plate one end.
The slot 2 is equipped with postive stop baffle 7 far from one end of the bimetal part, the postive stop baffle 7 and described the The distance of one through hole center is equal to the plate 3 far from the distance between bimetal part one end and the second through hole center.
First through hole can be identical or not identical with the second through-hole radius, and radius is identical, and first through hole is logical with second When hole is aligned, water yield is maximum
Active layers are preferably made of the manganese-nickel alloy material with high expansion coefficient, and passive layer is preferably by with low The Ferro-nickel alloy material of the coefficient of expansion is made, and nickel content is preferably 36-45%.
Bimetal leaf can also be vertically welded on base top surface, by the passive layer of bimetallic section towards plate.
Plate can also select plastic part, and plastic part light weight is easier to be pushed by bimetal part.
Bimetallic section with a thickness of 0.18-0.2mm, be divided into active layers and passive layer, the thickness of active layers is greater than passive layer Thickness, the more conducively bending of component, deformation can be according to different fire-fighting grades, and different operating temperatures selects unlike material Or the bimetal leaf or more sheet metals of different-thickness ratio, change the strain sensitivity of fountain head, improves fire-fighting efficiency, simultaneously It avoids accidentally spraying, reduces loss.
Embodiment 2
As shown in Figure 1, the present invention is a kind of fire-fighting fountain head for deduster, including spray head frame and splash box, institute It states spray head frame lower end and is equipped with pedestal 1, offer the first through hole 8 passed through for water flow, the splash box packet in the pedestal 1 Disk and the equally distributed splatter slot of disk surrounding are included, the disk is fixedly connected with the upper end of spray head frame, the disk Axis is overlapped with the axis of through-hole, and the pedestal 1 is equipped with slot 2, and the plate 3 that setting matches in the slot 2 is described to insert Plate 3 is equipped with the second through-hole 4 matched with the first through hole position;The base top surface is equipped with the double gold contacted with plate Metal elements, one end of plate is arranged in the bimetal part, and contradicts with it, for pushing plate to make second on plate to lead to Hole 4 is aligned with first through hole 8.
The bimetal part includes the bimetal leaf perpendicular to base plane setting, push rod 9 and is arranged in base top surface On body cradle 10, the bimetal leaf includes the welding section 503 of upper end and the bimetallic section of lower end, and the bimetallic section includes The welding section 503 of active layers 501 and passive layer, the bimetal leaf is welded and fixed on body cradle 10, one end of the push rod 9 with Passive layer contradicts and is parallel to the plane of the bimetallic section, one end conflict of the other end of the push rod and the plate 3, institute It states body cradle 10 and push rod 9 constitutes rotation articulated section 11, the rotation articulated section 11 and push rod are small at a distance from plate one end At a distance from rotation articulated section and push rod are far from plate one end.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of fire-fighting fountain head for deduster, including spray head frame and splash box, spray head frame lower end is equipped with bottom , the first through hole passed through for water flow is offered in the pedestal, the splash box includes that disk and disk surrounding are uniformly divided The splatter slot of cloth, the disk are fixedly connected with the upper end of spray head frame, and the axis of the disk is overlapped with the axis of through-hole, It is characterized in that, the pedestal is equipped with slot, the plate that setting matches in the slot, and the plate is equipped with and described the The second through-hole that one lead to the hole site matches;The base top surface is equipped with the bimetal part contacted with plate, the bimetallic One end of plate is arranged in component, and contradicts with it, for pushing plate to be aligned the second through-hole on plate with first through hole.
2. the fire-fighting fountain head according to claim 1 for deduster, which is characterized in that the bimetal part includes Bimetal leaf and support frame, the bimetal leaf include welding section and bimetallic section, the welding section and tube chamber welds with base fix or Welding section is welded and fixed with support frame, and the bimetallic section includes active layers and passive layer, the passive layer towards plate, and with Plate one end contradicts.
3. the fire-fighting fountain head according to claim 1 for deduster, which is characterized in that the bimetal part includes Perpendicular to bimetal leaf, push rod and the body cradle being arranged on base top surface of base plane setting, the bimetal leaf includes The welding section of upper end and the bimetallic section of lower end, the bimetallic section include active layers and passive layer, the weldering of the bimetal leaf It connects section to be weldingly fixed on spray head frame or body cradle, one end of the push rod and passive layer contradict and be parallel to the bimetallic One end of the plane of section, the other end of the push rod and the plate contradicts, and the body cradle and push rod constitute rotation articulated section, The rotation articulated section and push rod be less than at a distance from plate one end rotation articulated section and push rod far from plate one end at a distance from.
4. the fire-fighting fountain head any one of according to claim 1 to 3 for being used for deduster, which is characterized in that the slot is remote One end from the bimetal part is equipped with postive stop baffle, and the postive stop baffle is equal to institute at a distance from the first through hole center of circle Plate is stated far from the distance between bimetal part one end and the second through hole center.
5. the fire-fighting fountain head according to claim 4 for deduster, which is characterized in that the end of the plate is equipped with Handle.
6. the fire-fighting fountain head any one of according to claim 5 for being used for deduster, which is characterized in that the bimetallic section Midline position is equipped with through hole, and the through hole is round or curved shape or rectangle.
7. the fire-fighting fountain head according to claim 6 for deduster, which is characterized in that the through hole is set as more It is a, and be distributed in linear array.
8. any one described in -3 or 5-7 is used for the fire-fighting fountain head of deduster according to claim 1, which is characterized in that described The edge of splatter slot is equipped with several comb teeth, and the comb teeth is uniformly distributed perpendicular to splatter groove bottom.
9. the fire-fighting fountain head according to claim 8 for deduster, which is characterized in that the first through hole periphery is set There is annular groove, sealing ring is embedded in the annular groove, the outer side contacts of the second through-hole on the sealing ring and the plate.
10. the fire-fighting fountain head according to claim 9 for deduster, which is characterized in that the bottom surface of the pedestal One through-hole is externally provided with the thread barrel for installation.
CN201811027117.3A 2018-09-04 2018-09-04 Fire-fighting water spray head for dust remover Active CN109224353B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811027117.3A CN109224353B (en) 2018-09-04 2018-09-04 Fire-fighting water spray head for dust remover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811027117.3A CN109224353B (en) 2018-09-04 2018-09-04 Fire-fighting water spray head for dust remover

Publications (2)

Publication Number Publication Date
CN109224353A true CN109224353A (en) 2019-01-18
CN109224353B CN109224353B (en) 2024-03-22

Family

ID=65067274

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811027117.3A Active CN109224353B (en) 2018-09-04 2018-09-04 Fire-fighting water spray head for dust remover

Country Status (1)

Country Link
CN (1) CN109224353B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110136458A (en) * 2019-05-21 2019-08-16 俞芳芳 A kind of traffic lights with dedusting function
CN110663392A (en) * 2019-09-19 2020-01-10 杭州中艺生态环境工程有限公司 Loosening-proof ecological greening local plant planting blanket for saline-alkali soil discharge

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757866A (en) * 1971-11-08 1973-09-11 Grinnell Corp On-off sprinkler
US4040304A (en) * 1976-04-13 1977-08-09 Mccabe Francis J Clutch motor for use in resettable fire damper
US20020088624A1 (en) * 2001-01-10 2002-07-11 Waligorski Gordon J. Sprinkler head cover
CN201260860Y (en) * 2008-09-17 2009-06-24 陈贤明 Temperature-sensing rotary type sprinkling and fire-fighting nozzle
CN104225851A (en) * 2014-10-23 2014-12-24 常景泓 Fire protection sprayer capable of starting and stopping quickly and repeatedly
CN204034108U (en) * 2014-06-11 2014-12-24 浙江恒安消防安全设备有限公司 A kind of erect type shower nozzle
CN205964785U (en) * 2016-08-24 2017-02-22 南安市恒南消防器材有限公司 Two splash box fire control shower nozzles
CN107875554A (en) * 2017-11-08 2018-04-06 高邮市盛鑫消防科技有限公司 Flow automatic regulation water cannon shower nozzle
CN107899168A (en) * 2017-11-19 2018-04-13 龙文凯 Infrared detection early warning extinguishing device
CN207768986U (en) * 2017-12-28 2018-08-28 福建南安天航消防设备有限公司 A kind of fire-fighting spray gun with hydraulic pressure regulatory function
CN209316904U (en) * 2018-09-04 2019-08-30 江苏人和环保设备有限公司 A kind of fire-fighting fountain head for deduster

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757866A (en) * 1971-11-08 1973-09-11 Grinnell Corp On-off sprinkler
US4040304A (en) * 1976-04-13 1977-08-09 Mccabe Francis J Clutch motor for use in resettable fire damper
US20020088624A1 (en) * 2001-01-10 2002-07-11 Waligorski Gordon J. Sprinkler head cover
CN201260860Y (en) * 2008-09-17 2009-06-24 陈贤明 Temperature-sensing rotary type sprinkling and fire-fighting nozzle
CN204034108U (en) * 2014-06-11 2014-12-24 浙江恒安消防安全设备有限公司 A kind of erect type shower nozzle
CN104225851A (en) * 2014-10-23 2014-12-24 常景泓 Fire protection sprayer capable of starting and stopping quickly and repeatedly
CN205964785U (en) * 2016-08-24 2017-02-22 南安市恒南消防器材有限公司 Two splash box fire control shower nozzles
CN107875554A (en) * 2017-11-08 2018-04-06 高邮市盛鑫消防科技有限公司 Flow automatic regulation water cannon shower nozzle
CN107899168A (en) * 2017-11-19 2018-04-13 龙文凯 Infrared detection early warning extinguishing device
CN207768986U (en) * 2017-12-28 2018-08-28 福建南安天航消防设备有限公司 A kind of fire-fighting spray gun with hydraulic pressure regulatory function
CN209316904U (en) * 2018-09-04 2019-08-30 江苏人和环保设备有限公司 A kind of fire-fighting fountain head for deduster

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110136458A (en) * 2019-05-21 2019-08-16 俞芳芳 A kind of traffic lights with dedusting function
CN110136458B (en) * 2019-05-21 2021-10-01 江苏鸿康智能科技有限公司 Traffic signal lamp with dust removal function
CN110663392A (en) * 2019-09-19 2020-01-10 杭州中艺生态环境工程有限公司 Loosening-proof ecological greening local plant planting blanket for saline-alkali soil discharge
CN110663392B (en) * 2019-09-19 2022-01-04 杭州中艺生态环境工程有限公司 Loosening-proof ecological greening local plant planting blanket for saline-alkali soil discharge

Also Published As

Publication number Publication date
CN109224353B (en) 2024-03-22

Similar Documents

Publication Publication Date Title
US20080087446A1 (en) Self-activated fire extinguisher
US7841418B2 (en) Extended coverage horizontal sidewall sprinkler
US6805203B2 (en) Cover plate for concealed sprinkler
US7712218B2 (en) Method of making a flow shaper for a sprinkler assembly
CA2384904C (en) Residential sprinkler arrangement
CA2599927C (en) Automatic fire protection sprinkler with extended body
CN109224353A (en) A kind of fire-fighting fountain head for deduster
US7841420B2 (en) Self-activated fire extinguisher
US20200368567A1 (en) Multi-head array fire sprinkler system for storage applications
KR20080103067A (en) Special application sprinkler for use in fire protection
US11938359B2 (en) Concealable window sprinkler
US3716103A (en) Sprinkler head
US20210094051A1 (en) Sprinkler Head
JP6704478B2 (en) Fire fighting sprinklers and deflectors
US20050178564A1 (en) Fast response sprinkler assembly for a fire extinguishing system
CN209316904U (en) A kind of fire-fighting fountain head for deduster
US20160030787A1 (en) Radiation-activated sprinkler and related methods
WO2019187473A1 (en) Sprinkler head
JP2018166855A (en) Sprinkler head
JP4418843B2 (en) Mounting structure and mounting method of annular spring for water stop
JP3129854U (en) Sprinkler head seal structure
JPH02126956A (en) Sprinkler head
KR102575365B1 (en) Side Wall Type Dry Pendant Sprinkler having a seatholder unit
US20210260423A1 (en) Sprinkler Head
TWI464006B (en) A low pressure water mist fire sprinkler apparatus

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant