CN102961836B - CO2 fire-extinguisher cylinder and machining method thereof - Google Patents
CO2 fire-extinguisher cylinder and machining method thereof Download PDFInfo
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- CN102961836B CN102961836B CN201210476215.1A CN201210476215A CN102961836B CN 102961836 B CN102961836 B CN 102961836B CN 201210476215 A CN201210476215 A CN 201210476215A CN 102961836 B CN102961836 B CN 102961836B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003754 machining Methods 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 16
- 238000007711 solidification Methods 0.000 claims abstract description 13
- 230000008023 solidification Effects 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims description 28
- 238000003672 processing method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- 238000005422 blasting Methods 0.000 claims description 7
- 230000004323 axial length Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 abstract description 31
- 238000005507 spraying Methods 0.000 abstract description 9
- 238000007590 electrostatic spraying Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000576 coating method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000013556 antirust agent Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Abstract
The invention discloses a CO2 fire-extinguisher cylinder and a machining method thereof. The CO2 fire-extinguisher cylinder comprises a cylinder body, the bottom of the cylinder body is provided with an inclined blocking section and a diameter-reducing section, the diameter of the inclined blocking section is gradually shrunk, and the diameter of the diameter-reducing section is further shrunk until being closed, the periphery of the diameter-reducing section is sleeved with a bottom ring, and the transition part of the diameter-reducing section and the bottom ring is provided with a plastic-layer sealing ring. The machining method comprises the following steps: carrying out bottom shrinkage and port shrinkage on a seamless steel tube so as to obtain a cylinder body, sleeving a bottom ring on the diameter-reducing section at the bottom of the cylinder body, carrying out plastic spraying treatment on the cylinder body and the bottom ring, placing a CO2 fire-extinguisher cylinder upside down after plastic spraying treatment, uniformly distributing thermosetting plastic powder on the transition part of the diameter-reducing section and the bottom ring through using a vibrating screen, then placing the CO2 fire-extinguisher cylinder upside down and feeding the inverted CO2 fire-extinguisher cylinder into a drying tunnel in a suspended manner to carry out solidification, and finally forming a plastic-layer sealing ring i at the transition part of the diameter-reducing section and the bottom ring after the CO2 fire-extinguisher cylinder is dried in the drying tunnel. According to the invention, the problem that the electrostatic spraying cannot be carried out in place when the transition part of the cylinder body and bottom of the cylinder is subjected to plastic spraying is solved.
Description
Technical field
The present invention relates to CO
2extinguisher cylinder manufacturing technology field, particularly relates to a kind of CO
2extinguisher cylinder and processing method thereof.
Background technology
CO
2fire extinguisher be mainly used in putting out a fire to save life and property expensive equipment, archives material, instrument and meter, less than 600 volts electrical equipments and oils from the beginning of fire, be widely used in industry, agricultural, boats and ships, scientific research, medical treatment, health, the fields such as fire-fighting.
Such as, application number be 200620105670.0 Chinese patent literature disclose a kind of Portable light fire-fighting, comprise steel cylinder, small gas cylinder, valve body, spanner and safeties are provided with in valve body, the valve stem slides passage and extinguishing chemical injection channel that interconnect is provided with in valve body, sealing device is provided with between valve rod top and valve body, the bottom of valve rod is connected with little pricker, valve stem top coordinates with spanner, bottom coordinates with the gas joint being provided with gas port be fixed on valve body, be socketed on small gas cylinder bottleneck bottom gas joint, in gas joint, be provided with spring.Valve body lower portion and powder absorbing pipe affixed, powder absorbing pipe inwall is provided with places the brace rod of small gas cylinder, and valve rod is in primary importance, and extinguishing chemical injection channel and powder absorbing pipe are closed, and valve rod is in the second place, and extinguishing chemical injection channel is communicated with powder absorbing pipe.Offset with bottom of steel cylinder bottom powder absorbing pipe, bottom powder absorbing pipe, be provided with bottom plug, leave between bottom plug and powder absorbing pipe for CO
2the gap that gas passes through.
CO
2its die bed structure of fire extinguisher has two large classes, and a class is conventional concave bottom, the another kind of structure for adding foundation ring at the bottom of convex, and the latter's structure is subject to the foreign customers particularly accreditation of European client and favor deeply.
Present most of sunken bottom bottle polycrystalline substance as shown in Figure 2, its diagonal cleat section 3 angle is larger, size is shorter, and the foundation ring 2 matched adopts the mode of interior chamfering or non-chamfering, first cannot ensure closely cooperating between bottom of steel cylinder necking segment 5 and foundation ring 2, because diagonal cleat section 3 angle is comparatively large, size is shorter, when filling molding powder, ratio is easier to occur bubble, affects presentation quality.
Current domestic CO
2several large enterprises that fire extinguisher is produced, for the frame mode adding foundation ring at the bottom of convex, usual cylindrical shell and foundation ring have hot jacket to coordinate with two kinds of technology modes of colding pressing, the spraying coating process of the transition position of foundation ring and cylindrical shell all realizes with the electrostatic plastic spraying of routine, the principle of its electrostatic plastic spraying is that electrostatic generator produces negative high voltage (about 10KV), corona discharge phenomenon is utilized to make powdery paints be adsorbed on metal works, powdery paints borrows compressed air gas to send into spray gun by powder-supply system, the negative high voltage that HV generator produces is added with in spray gun front end, due to corona discharge, produce intensive electric charge in its vicinity, when powder is sprayed by rifle mouth, form charged coating particle, it is by the effect of electrostatic force, be adsorbed to metal works to get on, powder melts is made through heating, and natural cooling curing, hard film is formed at surface of the work.
But because cylindrical shell and foundation ring transition position are electrostatic blind area, electric charge to carry out short disconnected, cannot penetrate, electrostatic force cannot be shown, coating particle is caused not to be adsorbed onto transition region, electrostatic spraying is not in place, product is after air-tight test, transition region has water stain, be add antirust agent in air-tight test groove, antirust agent is because of the restriction by the antirust time limit, again because of foundation ring in use procedure and earth surface, by the impact of surrounding environment, namely occurred getting rusty at transition position, corrosion, presentation quality is poor, high-end customer requirement can not be met, and had a strong impact on the final utilization life-span of product.
Summary of the invention
The invention provides a kind of CO
2extinguisher cylinder and processing method thereof, solve when cylindrical shell and bottom transition district plastic-blasting because cylindrical shell and foundation ring transition position are electrostatic blind area, and electric charge has carried out short disconnected and cannot penetrate and cause coating particle can not be adsorbed onto transition region, the problem that electrostatic spraying is not in place.
A kind of CO
2extinguisher cylinder, comprise bottle, the oblique gear section that the bottom of this bottle is shunk gradually with diameter and diameter shrink further until the undergauge section closed, and have foundation ring in the outer race of described undergauge section, the intermediate location of described undergauge section and foundation ring is with moulding a layer sealing ring.
The closing in of bottle employing seamless steel pipe, the receipts end, process, the bottom outwardly convex of bottle forms sunken bottom, the outer sheathed foundation ring of sunken bottom, reduce at the base diameter of bottle and first form one section of diagonal cleat section, diagonal cleat section tilts certain angle, reduces diameter further and form bottom at the bottom of bottle below diagonal cleat section, this part is undergauge section, the intermediate location contacted with foundation ring in undergauge section is arranged moulds a layer sealing ring, makes foundation ring and the peripheral close contact of undergauge section, is not easy to get rusty.
As preferably, the angle of inclination of described oblique gear section is 10 ~ 30 degree.
More preferably, the angle of inclination of described oblique gear section is 10 ~ 15 degree.
Most preferably, the angle of inclination of described oblique gear section is 12 degree.
The present invention changes the angle of inclination of diagonal cleat section, it is made to transform 10 ~ 30 degree as from traditional 45 degree, after the angle of inclination of diagonal cleat section diminishes, the round and smooth degree of undergauge section at the bottle end is more smooth, more seal with coordinating of foundation ring, reduce pore and bottom angled, thus the steel cylinder concentricity obtained after foundation ring is assembled is high, junction gapless.
Undergauge section at the bottle end is tightr with coordinating between foundation ring, and the perpendicularity of whole steel cylinder is better, good looking appearance after plastic-blasting.
The angle of inclination of described diagonal cleat section is in the scope of 10 ~ 30 degree, angle of inclination is less, make undergauge section and coordinating between foundation ring tightr, when being conducive to spraying, molding powder enters, the bubble produced after reducing baking, therefore, in the present invention, the angle of inclination of diagonal cleat section is preferably 10 ~ 15 degree, is more preferably 12 degree.
As preferably, the described axial length of oblique gear section and the diameter ratio of bottle are 1 ~ 3:20.
More preferably, the described axial length of oblique gear section and the diameter ratio of bottle are 1:10.
While making the angle of inclination of described diagonal cleat section diminish, improve the height of diagonal cleat section, the height of diagonal cleat section increased, when undergauge section with coordinate between foundation ring after, vacate unnecessary diagonal cleat section, make it no longer tilt, undergauge section is tightr with coordinating between foundation ring.
The present invention is by reducing the angle of inclination of diagonal cleat section, increase the height of diagonal cleat section simultaneously, especially when the angle of inclination of diagonal cleat section reduce to 12 degree, the height of diagonal cleat section to be increased to it be 1 ~ 10 with the diameter ratio of bottle time, undergauge section is the tightst with coordinating between foundation ring, after carrying out filling out and moulding process, undergauge section and foundation ring transition position can not produce pore.
As preferably, the top of described foundation ring outer wall is along with outer chamfering.Make the flat seal fastening bottom when coordinating.
Present invention also offers a kind of as described in CO
2the processing method of extinguisher cylinder, comprising: adopt seamless steel pipe to make bottle through the receipts end, closing in step, in the outer sheathed foundation ring of the undergauge section of bottle body bottom, carries out plastic-blasting process to described bottle and foundation ring;
By the CO after described plastic-blasting process
2extinguisher cylinder is inverted, and by vibratory sieve, thermosetting molding powder is evenly distributed on the intermediate location of described bottle and foundation ring, then by CO
2extinguisher cylinder hang upside down is sent in drying tunnel and is cured, and the intermediate location namely in described bottle and foundation ring after drying in drying tunnel is formed moulds a layer sealing ring.
As preferably, the temperature of described solidification is 160 ~ 200 DEG C.
As preferably, the time of described solidification is 15 ~ 30nin.
Beneficial effect of the present invention:
The diagonal cleat section angle comparatively large (being generally 45 degree) of traditional steel cylinder bottom adopts the mode of interior chamfering or non-chamfering, closely cooperating between bottom of steel cylinder necking segment and foundation ring cannot be ensured, when filling molding powder, ratio is easier to occur bubble, affects presentation quality.
The present invention is by the improvement to bottle body bottom structure, and make diagonal cleat size elongated, angle diminishes, and outer chamfering is done in foundation ring, makes to closely cooperate between bottom of steel cylinder necking down position and foundation ring, and finished product perpendicularity is good, good looking appearance after plastic-blasting.
Traditional spraying coating process adopts electrostatic spraying, not in place to the transition region electrostatic spraying of foundation ring and bottle, easily occurs water stain, affects the quality of steel cylinder.
The steel cylinder bottle that processes of the present invention goes out and the good airproof performance of foundation ring transition region, after air-tight test, transition region can not retain any water stain, during kiss the earth, transition position can not get rusty, corrode, and be not subject to the impact of humid climate and environment, spraying puts in place without dead angle, and presentation quality is better, while meeting high-end customer requirement, also substantially increases the product final utilization life-span.
Accompanying drawing explanation
Fig. 1 is the structural representation of steel cylinder of the present invention.
Fig. 2 is the bottle body bottom structural representation of existing steel cylinder.
Fig. 3 is the bottle body bottom structural representation of steel cylinder shown in this Fig. 1.
Fig. 4 is the partial enlarged drawing of part A described in Fig. 1.
Fig. 5 is the process schematic diagram moulding layer sealing ring of the present invention.
Shown in figure, Reference numeral is as follows:
1-bottle 2-foundation ring 3-diagonal cleat section
The outer chamfering 5-undergauge section 6-of 4-moulds a layer sealing ring
7-thermosetting molding powder 8-hanging basket 9-CO
2extinguisher cylinder
10-conveyer belt.
Detailed description of the invention
As shown in Fig. 1 ~ 4, a kind of CO
2extinguisher cylinder, comprise bottle 1, foundation ring 2 and be positioned at foundation ring 2 and bottle 1 transition region mould layer sealing ring 6.
The agent structure of bottle 1 adopts existing bottle, the bottom of bottle 1 is diagonal cleat section 3 and undergauge section 5, diagonal cleat section 3 slopes inwardly, make reduced diameter, the angle of inclination of diagonal cleat section 3 is 10 ~ 30 degree, is more preferably 10 ~ 15 degree, in present embodiment, be arranged to 12 degree, traditional angle of inclination is 45 degree.
The height of diagonal cleat section 3 is 1 ~ 3/20 with the diameter ratio of bottle 1 main part, 1/20 is set in present embodiment, diameter as bottle 1 main body in present embodiment is 150mm, and the height of the diagonal cleat section 3 in present embodiment is set to 15mm, and the height of traditional diagonal cleat section 3 is 4mm.
Undergauge section 5 is inwardly shunk further, and close the bottom of bottle 1, periphery and the foundation ring 2 of undergauge section 5 closely cooperate, and the top of the outer wall of foundation ring 2, along with outer chamfering 4, fastens the flat seal of bottom when cooperation.
The transition region that foundation ring 2 is combined with undergauge section 5 has moulds layer sealing ring 6.
After the height increase of diagonal cleat section 3, the external series gap between bottle 1 and foundation ring 2 is become greatly, is conducive to fully entering of molding powder, vacate unnecessary angle after sealing with foundation ring 2, it is no longer tilted.In order to increase closely cooperating of foundation ring 2 and necking segment 5, the chamfering of foundation ring 2 changes outer chamfering into by chamfering in original, reduces necking segment 5 and the gap of foundation ring 2, reduces the pore filled out and produce when moulding.
CO of the present invention
2the processing method of extinguisher cylinder is as follows:
Adopt seamless steel pipe, steel cylinder manufacturing process flow routinely, through closing up, receiving, end step makes bottle 1, adopts the mode of hot jacket to coordinate bottle 1 and foundation ring 2, steel cylinder manufacturing process flow requires to carry out inside and outside ball blast to bottle 1, shoulder reconditioning and beat steel seal routinely.
Then by CO
2extinguisher cylinder 9 is inverted, the thermosetting molding powder 7(loading doses in the transition region with undergauge section 5 of foundation ring 2 change according to product diameter adjust dosage in good time), and with reciprocating sieve, thermosetting molding powder 7 is sieved even, make thermosetting molding powder 7 be uniformly distributed in transition region every nook and cranny.
Then as shown in Figure 5, by CO
2extinguisher cylinder 9 is inverted in hanging basket 8, sends in drying tunnel by conveyer belt 10, is cured by thermosetting molding powder 7, and solidification temperature is 160 ~ 200 DEG C; Hardening time is 15 ~ 30nin.
After solidification process in drying tunnel, transition region namely between foundation ring 2 and undergauge section 5 forms one and encloses and firmly mould layer sealing ring 6.
Embodiment 1
Adopt seamless steel pipe, steel cylinder manufacturing process flow routinely, through closing up, receiving, end step makes bottle 1, adopts the mode of hot jacket to coordinate bottle 1 and foundation ring 2, steel cylinder manufacturing process flow requires to carry out inside and outside ball blast to bottle 1, shoulder reconditioning and beat steel seal routinely.
Then by CO
2extinguisher cylinder 9 is inverted, the thermosetting molding powder 7(loading doses in the transition region with undergauge section 5 of foundation ring 2 change according to product diameter adjust dosage in good time), and with reciprocating sieve, thermosetting molding powder 7 is sieved even, make thermosetting molding powder 7 be uniformly distributed in transition region every nook and cranny.
Then as shown in Figure 5, by CO
2extinguisher cylinder 9 is inverted in hanging basket 8, sends in drying tunnel by conveyer belt 10, is cured by thermosetting molding powder 7, and solidification temperature is 160 DEG C; Hardening time is 30nin.
After solidification process in drying tunnel, transition region namely between foundation ring 2 and undergauge section 5 forms one and encloses and firmly mould layer sealing ring 6.
Embodiment 2
Adopt seamless steel pipe, steel cylinder manufacturing process flow routinely, through closing up, receiving, end step makes bottle 1, adopts the mode of hot jacket to coordinate bottle 1 and foundation ring 2, steel cylinder manufacturing process flow requires to carry out inside and outside ball blast to bottle 1, shoulder reconditioning and beat steel seal routinely.
Then by CO
2extinguisher cylinder 9 is inverted, the thermosetting molding powder 7(loading doses in the transition region with undergauge section 5 of foundation ring 2 change according to product diameter adjust dosage in good time), and with reciprocating sieve, thermosetting molding powder 7 is sieved even, make thermosetting molding powder 7 be uniformly distributed in transition region every nook and cranny.
Then as shown in Figure 5, by CO
2extinguisher cylinder 9 is inverted in hanging basket 8, sends in drying tunnel by conveyer belt 10, is cured by thermosetting molding powder 7, and solidification temperature is 180 DEG C; Hardening time is 20nin.
After solidification process in drying tunnel, transition region namely between foundation ring 2 and undergauge section 5 forms one and encloses and firmly mould layer sealing ring 6.
Embodiment 3
Adopt seamless steel pipe, steel cylinder manufacturing process flow routinely, through closing up, receiving, end step makes bottle 1, adopts the mode of hot jacket to coordinate bottle 1 and foundation ring 2, steel cylinder manufacturing process flow requires to carry out inside and outside ball blast to bottle 1, shoulder reconditioning and beat steel seal routinely.
Then by CO
2extinguisher cylinder 9 is inverted, the thermosetting molding powder 7(loading doses in the transition region with undergauge section 5 of foundation ring 2 change according to product diameter adjust dosage in good time), and with reciprocating sieve, thermosetting molding powder 7 is sieved even, make thermosetting molding powder 7 be uniformly distributed in transition region every nook and cranny.
Then as shown in Figure 5, by CO
2extinguisher cylinder 9 is inverted in hanging basket 8, sends in drying tunnel by conveyer belt 10, is cured by thermosetting molding powder 7, and solidification temperature is 200 DEG C; Hardening time is 15nin.
After solidification process in drying tunnel, transition region namely between foundation ring 2 and undergauge section 5 forms one and encloses and firmly mould layer sealing ring 6.
The foregoing is only better implementation example of the present invention, be not limited to the present invention, all within the present invention's spirit and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a CO
2the processing method of extinguisher cylinder, comprising: adopt seamless steel pipe to make bottle through the receipts end, closing in step, in the outer sheathed foundation ring of the undergauge section of bottle body bottom, carries out plastic-blasting process to described bottle and foundation ring;
It is characterized in that, by the CO after described plastic-blasting process
2extinguisher cylinder is inverted, and by vibratory sieve, thermosetting molding powder is evenly distributed on the intermediate location of described bottle and foundation ring, then by CO
2extinguisher cylinder hang upside down is sent in drying tunnel and is cured, and the intermediate location namely in described bottle and foundation ring after drying in drying tunnel is formed moulds a layer sealing ring;
Process the CO obtained
2the structure of extinguisher cylinder comprises bottle, the oblique gear section that the bottom of this bottle is shunk gradually with diameter and diameter shrink further until the undergauge section closed, have foundation ring in the outer race of described undergauge section, the intermediate location of described undergauge section and foundation ring is with moulding a layer sealing ring.
2. processing method according to claim 1, is characterized in that, the temperature of described solidification is 160 ~ 200 DEG C.
3. processing method according to claim 1, is characterized in that, the time of described solidification is 15 ~ 30nin.
4. processing method according to claim 1, is characterized in that, the angle of inclination of described oblique gear section is 10 ~ 30 degree.
5. processing method according to claim 4, is characterized in that, the angle of inclination of described oblique gear section is 10 ~ 15 degree.
6. processing method according to claim 5, is characterized in that, the angle of inclination of described oblique gear section is 12 degree.
7. processing method according to claim 6, is characterized in that, the described axial length of oblique gear section and the diameter ratio of bottle are 1 ~ 3:20.
8. processing method according to claim 7, is characterized in that, the described axial length of oblique gear section and the diameter ratio of bottle are 1:10.
9. processing method according to claim 8, is characterized in that, the edge, top of described foundation ring outer wall is with outer chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210476215.1A CN102961836B (en) | 2012-11-21 | 2012-11-21 | CO2 fire-extinguisher cylinder and machining method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210476215.1A CN102961836B (en) | 2012-11-21 | 2012-11-21 | CO2 fire-extinguisher cylinder and machining method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102961836A CN102961836A (en) | 2013-03-13 |
| CN102961836B true CN102961836B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210476215.1A Active CN102961836B (en) | 2012-11-21 | 2012-11-21 | CO2 fire-extinguisher cylinder and machining method thereof |
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| CN (1) | CN102961836B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752489B (en) * | 2014-01-16 | 2016-05-11 | 天广消防股份有限公司 | A kind of process of surface treatment of hand fire extinguisher |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228174Y (en) * | 1995-09-04 | 1996-05-29 | 北京天海工业有限公司 | Steel seamless gas cylinder with tubular concave bottom |
| CN2463668Y (en) * | 2001-01-08 | 2001-12-05 | 上海青浦消防器材股份有限公司 | Carbon dioxide aluminium bottle for food |
| FR2866242B1 (en) * | 2004-02-18 | 2006-04-28 | Eurofeu Sa | PORTABLE EXTINGUISHER |
| CN202516202U (en) * | 2012-05-09 | 2012-11-07 | 宁波能林消防器材有限公司 | Integrally-molded fire extinguisher cylinder |
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2012
- 2012-11-21 CN CN201210476215.1A patent/CN102961836B/en active Active
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Address after: 312369, No. three, No. five Chaoyang Road, Hangzhou Bay Industrial Park, Shaoxing, Zhejiang, Shangyu Patentee after: Zhejiang Jindun Fire Equipment Co.,Ltd. Address before: 312369, No. three, No. five Chaoyang Road, Hangzhou Bay Industrial Park, Shaoxing, Zhejiang, Shangyu Patentee before: ZHEJIANG JINDUN FIRE-FIGHTING EQUIPMENT Co.,Ltd. |
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Address after: No. 5 Chaoyang 3rd Road, Hangzhou Bay Economic and Technological Development Zone, Shangyu District, Shaoxing City, Zhejiang Province, China 312369 Patentee after: Zhejiang Nuodun Fire Protection Co.,Ltd. Country or region after: China Address before: No. 5 Chaoyang 3rd Road, Dongyi District, Shangyu Economic and Technological Development Zone, Hangzhou Bay, Shaoxing City, Zhejiang Province, China 312369 Patentee before: Zhejiang Norton Fire Technology Co.,Ltd. Country or region before: China Address after: No. 5 Chaoyang 3rd Road, Dongyi District, Shangyu Economic and Technological Development Zone, Hangzhou Bay, Shaoxing City, Zhejiang Province, China 312369 Patentee after: Zhejiang Norton Fire Technology Co.,Ltd. Country or region after: China Address before: No. 5 Chaoyang 3rd Road, Dongyi District, Hangzhou Bay Industrial Park, Shangyu City, Shaoxing City, Zhejiang Province 312369 Patentee before: Zhejiang Jindun Fire Equipment Co.,Ltd. Country or region before: China |
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