CN108277854A - A kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant - Google Patents
A kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant Download PDFInfo
- Publication number
- CN108277854A CN108277854A CN201810327509.5A CN201810327509A CN108277854A CN 108277854 A CN108277854 A CN 108277854A CN 201810327509 A CN201810327509 A CN 201810327509A CN 108277854 A CN108277854 A CN 108277854A
- Authority
- CN
- China
- Prior art keywords
- valve
- anticollision
- valve body
- fixedly connected
- pressure
- 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.)
- Pending
Links
- 230000002528 anti-freeze Effects 0.000 title claims abstract description 19
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/025—Taps specially designed for outdoor use, e.g. wall hydrants, sill cocks
- E03B9/027—Taps specially designed for outdoor use, e.g. wall hydrants, sill cocks with features preventing frost damage
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/04—Column hydrants
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/14—Draining devices for hydrants
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of antifreeze anticollision pressure-regulating type outdoor fire hydrants, critical piece includes body, anticollision lockable mechanism, elbow, valve body, automatic drainage valve and anti-collision rubber circle, upper end, which is fixed, in the valve body is equipped with stabilizing base, so that lead screw, anti-reducing sleeve, flap, valve component is formed independent lockable mechanism, plays anticollision sealing function.The inside of the body is installed with drive rod, connecting rod, upper coupling and lower coupler, and lower coupler is fixedly connected with the lead screw in valve body, forms complete switching mechanism.A kind of anticollision pressure-regulating type outdoor fire hydrant of the present invention, is improved on the basis of common bolt and to its key position, and pressure regulation, antifreeze and collision prevention function are made it have by the effect of the above part structures.
Description
Technical field
The present invention relates to fire-fighting fire extinguishing equipment field, more particularly to a kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant.
Background technology
With the fast development of China's economy, property loss is also increasing caused by fire, and governments at all levels are into one thus
Step strengthens the element task of security against fire, residential area, market town, the mating fire-fighting infrastructure of industrial and mining enterprises and public place
It is gradually improved, suitable above ground hydrant is assembled in traffic convenience and important place, laid for security against fire good
Basis；Existing above ground hydrant is made of the part such as stopper, body, valve body, elbow, operating lever, spool and valve seat, and water outlet connects
Mouth is arranged on upper bolt, and when encountering fire behavior, by being connect with fire hose, valve can be opened to implement to go out by screwing spanner
Fire, but there are following three points deficiencies, first, above ground hydrant is typically mounted at fire-fighting vehicle disengaging conveniently place, therefore
Public vehicles passage constitutes grave danger to above ground hydrant, accidentally touches and accidentally the accident of hitting occurs repeatedly, hit late gate and be in
Open state, a large amount of tap water are gushed from lower bolt, not only cause water resource serious waste, but also go on a journey to the surrounding masses
It brings inconvenience, water supply line need to depressurize or cut off the water when influencing traffic safety, and repairing replacement, lead to water supply line range
Interior user cannot just commonly use water, second is that underground piping hydraulic pressure is generally larger, the fireman for being in fire demand water controls
Hydraulic giant is discharged there are some potential safety problems, third, north cold area, if fire hydrant aerial part has ponding easily to freeze, it will
The normal keying of fire hydrant is influenced, there are some potential safety problemss, for this purpose, it is proposed that disappearing outside a kind of antifreeze anticollision pressure-regulating type room
Fiery bolt.
Invention content
The technical problem to be solved by the present invention is to overcome the defect of the prior art, provide outside a kind of antifreeze anticollision pressure-regulating type room
Fire hydrant.
In order to solve the above technical problem, the present invention provides the following technical solutions.
A kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant of the present invention, critical piece includes body, anticollision lockable mechanism, curved
Head, valve body, automatic drainage valve and anti-collision rubber circle, upper end, which is fixed, in the valve body is equipped with stabilizing base, make lead screw, anti-reducing sleeve,
Flap, valve component form independent lockable mechanism, play anticollision sealing function.The inside of the body is installed with driving
Bar, connecting rod, upper coupling and lower coupler, lower coupler are fixedly connected with the lead screw in valve body, form complete switching on and shutting down
Structure.The anti-collision rubber circle is bolted to connection among body, valve body, and anti-collision rubber encloses anticollision cushioning effect, valve
Body lower flange is connect with elbow, and automatic drainage valve is housed on valve body, and playing remaining water in drain valve has antifreeze effect, the valve
Valve, valve component are made of two kinds of mating large and small line with rubber flaps, copper valve seats respectively, are mounted in valve body by lead screw connection
Pressure regulation is played the role of according in valve by source pressure size by portion.Disappear outside a kind of antifreeze anticollision pressure-regulating type room of the present invention
Fiery bolt is improved on the basis of common bolt and to its key position, and tune is made it have by the effect of the above part structures
Pressure, antifreeze and collision prevention function.
Preferably, the upper end of the body is furnished with spanner, and the outer surface of spanner is equipped with silica gel sheath, the outer surface of silica gel sheath
Equipped with screw thread.
Preferably, bolts and nuts, bolt are equipped at the body and the connection and fixed installation of valve body, valve body and bend pipe
Quantity with nut is several groups, and the lower end outer surface of the bend pipe is equipped with pedestal.
The advantageous effect that is reached of the present invention is：The antifreeze anticollision pressure-regulating type outdoor fire hydrant, by stabilizing base, valve rod,
The matching design of anti-reducing sleeve, lead screw, valve rod, big line with rubber flap, big valve seat, small line with rubber flap and small valve seat, reaches tune
Pressure, antifreeze, anticollision function.
1. big line with rubber flap moves up and down in valve rod position of polished rod, small flap is then fixedly connected with valve rod, is opening valve rod
In the process, segmentation is opened under the active force of pipeline pressure water, plays lower primary school's line with rubber valve valve and open, big line with rubber flap is in pipeline pressure
It is in closing seam state with big valve seat under the action of power water, water is by between small line with rubber flap and big line with rubber flap at this time
Gap enters fire hydrant by inlet opening, when valve rod is opened to certain position, big line with rubber flap is pushed to open, and fire water is from big line with rubber
Gap between flap and big valve seat flows into, to which the device just effectively plays the role of pressure regulation in opening process.Make
During opening fire hydrant with spanner, the high pressure fire fighting water of fire protection pipeline enters the gap size of fire hydrant by regulator
Just no longer fixed, but constantly change under the action of pipeline hydraulic pressure, when fire protection pipeline hydraulic pressure is more than the pressure in fire hydrant cavity
When power, big line with rubber flap is pushed to move upwards, with big valve seat fitted seal, become smaller at this time into water space, when fire protection pipeline hydraulic pressure
When reduction, big line with rubber flap moves downward, and becomes larger into water space, so as to complete dynamic voltage stabilizing process.
2. the spring in automatic drainage valve uses mechanical motion mechanism, when pressure is more than 0.1MPa in bolt, valve is automatically close
Envelope is closed.When pressure is less than 0.1Mpa in bolt, device opens water more than quickly exclusion intracavitary, to prevent equipment position to be mounted on
The above position of frozen soil layer freezes, and influences to fetch water, and plays antifreeze effect.
3. being designed with anti-collision rubber circle, cushioning effect is played, the damage for avoiding small collision usually from bringing component.If touching
Hit that impact force is excessive to cause valve body to be severed with upper bit, upper coupling will be detached with lower coupler at this time, be fixed on valve body
Stabilizing base still maintain the original state, so that valve is in sealing state, hydraulic pressure also functions to certain power-assisted sealing function in pipeline, from
And reach the watertight function of fire hydrant anticollision, practical, entire fire hydrant structure is simple, easy to operate, and protection effect is good.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings.
Fig. 1 is a kind of overall structure diagram of anticollision pressure-regulating type outdoor fire hydrant of the present invention.
In figure：1, spanner；2, drive rod；3, connecting rod；4, body；5, upper coupling；6, lower coupler；7, stabilizing base；
8, lead screw；9, anti-reducing sleeve；10, valve rod；11, big valve seat；12, big line with rubber flap；13, small valve seat；14, small line with rubber flap；15、
Elbow；16, valve body；17, automatic drainage valve；18, anti-collision rubber circle.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
As shown in Figure 1, a kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant, critical piece includes body 4, anticollision lockable mechanism
7 ~ 14, elbow 15, valve body 16, automatic drainage valve 17 and anti-collision rubber circle 18,.Drive rod 2 is rotated counterclockwise using spanner 1, is led to
Crossing connecting rod 3 drives upper coupling 5 to be rotated with lower coupler 6, to drive lead screw 8 to rotate, so that anticollision is connect under screw drive
Set 9 moves downward, and makes valve rod 10 that small line with rubber flap 14 be driven to move downward, and water inlet is opened to reach valve.Big line with rubber valve at this time
Valve 12 will be between small line with rubber flap 14 and big line with rubber flap 12 with 11 closing seam of big valve seat, water source under the promotion of pressure water
Gap intakes.When valve is opened to certain position, valve rod 10 is designed with step at this time, and big line with rubber flap 12 will be pushed to move downward,
Keep big line with rubber flap 12 in the open state with big valve seat 11, water source just will be between big line with rubber flap 12 and big valve seat 11 at this time
Gap intakes, and voltage regulation function is realized in this valve opening process.Rotating clockwise spanner 1 makes valve completely close, in valve certainly at this time
Dynamic relief valve 17 will rush automatic pressure relief valve 17 with the water of upper bit and be discharged, and avoid that there are ponding icings in the north, play antifreeze effect.
Valve is designed with anti-collision rubber circle 18, plays cushioning effect, the damage for avoiding small collision usually from bringing component.If collision impact
Power is excessive to cause valve body to be severed with upper bit, and upper coupling 5 will be detached with lower coupler 6 at this time, is fixed on steady on valve body
Reservation 7 still keeps original state, and valve is made to be in sealing state, and hydraulic pressure also functions to certain power-assisted sealing function in pipeline, from
And reach the watertight function of fire hydrant anticollision, play the role of anticollision.With simple in structure, installation, easy to operate, safeguard function
Strong effect.
It should be noted that the present invention is a kind of antifreeze anticollision pressure-regulating outdoor fire hydrant, when in use, first, anticollision rubber
Cushion rubber 18 is positioned between body 4 and valve body 16, and big valve seat 11 is bonded in by anaerobism glue at the interior grooves of valve body 16, on
Shaft coupling 5 is docked with 6 three-jaw of lower coupler, and the top of upper coupling 5 is connected by bolts and nuts with connecting rod 3, silk
The top of bar 8 passes through bottom connection of the stabilizing base 7 by bolts and nuts and lower coupler 6, stabilizing base 7 to pass through hexagon socket head cap screw
It being fixedly mounted on valve body 16, copper nut is mounted on the top of anti-reducing sleeve 9 by screw-thread fit, and junction of the edges of two sheets of paper screw is used in combination to fix,
Lead screw 8 drives anti-reducing sleeve 9 to move up and down by screw-thread fit, and then, the top of valve rod 10 by bolts and nuts and is prevented
The bottom connection of reducing sleeve 9, meanwhile, small valve seat 13 is bonded in by anaerobism glue on big line with rubber flap 12, the bottom of valve rod 10
Big line with rubber flap 12 is may pass through, and the smooth bar part of valve rod 10 will limit big 12 movement locus of line with rubber flap, the bottom of valve rod 10
Connect with small line with rubber flap 14 by screw-thread fit, and big line with rubber flap 12 can the 10 following position in middle part of valve rod freely up and down
Activity, finally, the spring in automatic drainage valve 17 use mechanical movement, and when pressure is less than 0.1Mpa in bolt, device is opened fast
Speed excludes water more than intracavitary, to prevent equipment position freezing mounted on the above position of frozen soil layer, plays antifreeze effect.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant, it is characterised in that：Including body（4）, anticollision lockable mechanism, elbow
（15）, valve body（16）, automatic drainage valve（17）With anti-collision rubber circle（18）, the anticollision lockable mechanism includes being fixedly mounted on institute
State the stabilizing base of valve inner upper end（7）, lead screw（8）Top passes through stabilizing base（7）, bottom and anti-reducing sleeve（9）Screw thread is connected
It connects, anti-reducing sleeve（9）Bottom and valve rod（10）It is fixedly connected；Valve rod（10）It is then passed through big valve flap（12）With small flap（14）Screw thread
It is fixedly connected；Big valve seat（11）It is fixedly mounted in valve body, small valve seat（13）It is fixedly mounted on big valve flap（12）On；The body
（4）Top be installed with drive rod（2）, drive rod（2）Bottom is fixedly connected with connecting rod（3）, connecting rod（3）Bottom with
Upper coupling（5）It is fixedly connected, upper coupling（5）With lower coupler（6）It is engaged and is coordinated by tooth, lower coupler（6）With valve body
Interior lead screw（8）It is fixedly connected；The anti-collision rubber circle（18）It is fixedly connected on body（4）On, valve body（16）It is upper to be equipped with automatically
Drain valve（17）, valve body（16）Lower flange and elbow（15）It is fixedly connected.
2. a kind of anticollision pressure-regulating outdoor fire hydrant according to claim 1, it is characterised in that：The body（4）Upper end
Equipped with spanner（1）, and spanner（1）Outer surface be equipped with silica gel sheath, the outer surface of silica gel sheath is equipped with screw thread.
3. a kind of anticollision pressure-regulating outdoor fire hydrant according to claim 1, it is characterised in that：The body（4）With valve body
（16）, valve body（16）With bend pipe（15）Bolts and nuts are equipped at connection and fixed installation, if the quantity of bolts and nuts is
Dry group, the bend pipe（15）Lower end outer surface be equipped with pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327509.5A CN108277854A (en) | 2018-04-12 | 2018-04-12 | A kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327509.5A CN108277854A (en) | 2018-04-12 | 2018-04-12 | A kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108277854A true CN108277854A (en) | 2018-07-13 |
Family
ID=62811420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810327509.5A Pending CN108277854A (en) | 2018-04-12 | 2018-04-12 | A kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108277854A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295803A (en) * | 2019-07-11 | 2019-10-01 | 浙江创力电子股份有限公司 | A kind of intelligence fire hydrant cap lock |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201546263U (en) * | 2009-09-12 | 2010-08-11 | 黄清池 | Improvement structure of outdoor pressure regulating fire hydrant |
| CN102587456A (en) * | 2012-03-26 | 2012-07-18 | 华东交通大学 | Two-stage pressure-adjusting multifunctional outdoor fire hydrant |
| CN205348285U (en) * | 2016-01-18 | 2016-06-29 | 孙占标 | Frostproofing crashproof pressure regulating fire hydrant of ground following formula |
| CN205502133U (en) * | 2016-04-13 | 2016-08-24 | 沧州市消防器材厂 | Crashproof overflow fire hydrant |
| KR200481708Y1 (en) * | 2015-11-30 | 2016-11-02 | (주)화이어대상 | Fire hydrant with easy maintenance |
| CN206928373U (en) * | 2017-03-23 | 2018-01-26 | 沪消消防科技有限公司 | A kind of ground anticollision pressure-regulating fire hydrant |
| CN208472846U (en) * | 2018-04-12 | 2019-02-05 | 沪航消防科技有限公司 | A kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant |
-
2018
- 2018-04-12 CN CN201810327509.5A patent/CN108277854A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201546263U (en) * | 2009-09-12 | 2010-08-11 | 黄清池 | Improvement structure of outdoor pressure regulating fire hydrant |
| CN102587456A (en) * | 2012-03-26 | 2012-07-18 | 华东交通大学 | Two-stage pressure-adjusting multifunctional outdoor fire hydrant |
| KR200481708Y1 (en) * | 2015-11-30 | 2016-11-02 | (주)화이어대상 | Fire hydrant with easy maintenance |
| CN205348285U (en) * | 2016-01-18 | 2016-06-29 | 孙占标 | Frostproofing crashproof pressure regulating fire hydrant of ground following formula |
| CN205502133U (en) * | 2016-04-13 | 2016-08-24 | 沧州市消防器材厂 | Crashproof overflow fire hydrant |
| CN206928373U (en) * | 2017-03-23 | 2018-01-26 | 沪消消防科技有限公司 | A kind of ground anticollision pressure-regulating fire hydrant |
| CN208472846U (en) * | 2018-04-12 | 2019-02-05 | 沪航消防科技有限公司 | A kind of antifreeze anticollision pressure-regulating type outdoor fire hydrant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295803A (en) * | 2019-07-11 | 2019-10-01 | 浙江创力电子股份有限公司 | A kind of intelligence fire hydrant cap lock |
| CN110295803B (en) * | 2019-07-11 | 2024-04-19 | 浙江创力电子股份有限公司 | Intelligent hydrant top cover lock |
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| CB02 | Change of applicant information |
Address after: 362000 Fujian Quanzhou Nanan City Mei Mei successful development zone Applicant after: HUHANG FIRE-FIGHTING TECHNOLOGY Co.,Ltd. Address before: 362000 Fujian Quanzhou Nanan City Mei Mei successful development zone Applicant before: FUJIAN HUHANG FIRE FIGHTING TECHNOLOGY CO.,LTD. |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20240130 Address after: No.11, Meiyu Road, Meiyu valve garden, Luncang, Nan'an City, Quanzhou City, Fujian Province, 362300 Applicant after: HUHANG TECHNOLOGY GROUP Co.,Ltd. Country or region after: China Address before: 362000 Fujian Quanzhou Nanan City Mei Mei successful development zone Applicant before: HUHANG FIRE-FIGHTING TECHNOLOGY Co.,Ltd. Country or region before: China |