CN102392923B - Clamping-type stainless steel protective device of pipe connection piece - Google Patents
Clamping-type stainless steel protective device of pipe connection piece Download PDFInfo
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- CN102392923B CN102392923B CN201110366380.7A CN201110366380A CN102392923B CN 102392923 B CN102392923 B CN 102392923B CN 201110366380 A CN201110366380 A CN 201110366380A CN 102392923 B CN102392923 B CN 102392923B
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- stainless steel
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- pipe
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- 239000010935 stainless steel Substances 0.000 title claims abstract description 72
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 72
- 230000001681 protective effect Effects 0.000 title claims abstract description 20
- 239000012530 fluid Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 239000000567 combustion gas Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 235000012206 bottled water Nutrition 0.000 claims description 5
- 239000003651 drinking water Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 238000005253 cladding Methods 0.000 abstract 1
- 238000011900 installation process Methods 0.000 abstract 1
- 238000002788 crimping Methods 0.000 description 17
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003550 marker Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 229920006168 hydrated nitrile rubber Polymers 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention relates to a clamping-type stainless steel protective device of a pipe connection piece. The protective device is composed of a stainless steel pipe fitting (1), a stainless steel pipe joint (3), a pipeline seal ring (2), a protective clothing (4) and a protective cover (5). The installation process comprises the steps of cladding the stainless steel pipe joint (3) on the stainless steel pipe fitting (1) and the pipeline seal ring (2) after the pipeline seal ring (2) is sleeved on the stainless steel pipe fitting (1), wherein the excircle of the convex ring of the pipeline seal ring (2) out of the stainless steel joint (3) is provided with the protective clothing (4); the protective clothing (4) is cladded on the excircle of the convex ring of the pipeline seal ring (2) out of the stainless steel joint (3); a port of the stainless steel joint (3) is provided with a protective cover (5); and the protective cover (5) is connected with the port of the stainless steel joint (3). By using the clamping-type stainless steel protective device, pipeline leakage resulting from missing clamping can be effectively prevented, and dust and other foreign matters at construction sites can be effectively prevented from entering pipe fittings to be installed, and thus ensuring an pipeline to be unblocked.
Description
Technical field
The present invention relates to pipe fitting, particularly a kind of stainless steel clamp-press type connector for pipeline protective equipment.
Background technique
Stainless steel feedwater piping is " the green tubing of 21st century ", has pollution-free, high strength, long lifetime, fluid resistance is little, comprehensive cost is low, the feature such as attractive in appearance, is the desirable substitute products of other class tubing, also by the final selection that is feedwater piping.Be mainly used in hot and cold water, direct drinking feedwater piping, also adapt to for the civilian low-pressure fluid such as heating, air-conditioning, fire-fighting, combustion gas and carry stainless steel pipeline engineering construction, can also adapt to the low-pressure fluid conveyance conduit engineering construction for industries such as medicine, beverage, food, chemical industry.CN101943294A denomination of invention: " clamp-press type ring compression mould "; CN301251463S denomination of invention: " pipe fitting ring compression mould "; CN201818927U denomination of invention: " argon tungsten-arc welding of GB stainless steel pipeline socket joint connects structure "; CN201827546U denomination of invention: " stainless steel pipe ring press to connect structure and annulus pressure mould for jam-on type tube fitting " discloses the related art scheme that special rubber seal is housed in the U-shaped bulge loop of inventor's stainless steel pressure welding pipe fittings, during installation, Stainless Steel Tube is inserted to bellmouth pipe fitting to positioning step position, with special-purpose card press tool, the card splenium position of U-shaped groove and U-shaped groove one or both sides is pushed simultaneously.Rubber seal seals after being squeezed, and in the time of card splenium position pipe fitting and tubing, location fixation is played in contraction deformation, thereby has effectively realized the connection of stainless steel pipeline.
Clamp-press type pipe is universal gradually in national star hotel, hospital and high-end residential community gradually in recent years, all superior functions due to Stainless Steel Tube, use field also from the earliest only in the ducted use of water supply and drainage, extend in pipelines such as expanding to gas pipeline, solar energy conveyance conduit and extraordinary oil and use.Characteristic for different fluid, at first the chlorinated butyl using in feedwater piping (CIIR) seal ring, be subject to the restriction of its material capability, can not meet the service condition of other pipelines, for reaching various fluid line, maximize working life, the stainless steel clamp-press type seal for pipe joints circle hydrogenation fourth fine (HNBR) that meets gas pipeline requirement and the solar pipe seal ring fluorine rubber (FKM) that meets high-temperature-hot-water have successively been released, for the ease of distinguishing all kinds of seal rings, respectively seal ring being made into black chlorinated butyl (CIIR) feedwater piping uses, yellow hydrogenation fourth fine (HNBR) gas pipeline is used, use with brown fluorine rubber (FKM) solar pipe.But because the kind of O-ring seal increases, during assembling, seal ring is placed on the bulge loop inside of pipe fitting, and the stainless steel pipe appearance characteristics of same size is identical, during factory mass assembling, easily go wrong, the seal ring pipe fitting that different performance is housed is mixed, so that deliver to while using building site, installer cannot distinguish, wrong pipe fitting being arranged on pipeline, causing shorten the working life of pipeline, is technical problem demanding prompt solution.
Summary of the invention
The problem existing in order to solve prior art, the object of the present invention is to provide a kind of stainless steel clamp-press type connector for pipeline protective equipment, according to the fluid characteristics of pipeline, on pipe fitting bulge loop cylindrical, be provided with color and be divided into indigo plant, Huang, red etc. protecting cover, represent respectively the signs such as potable water, combustion gas, solar heating, effectively solved the differentiation of different usability pipe fittings, when pressure welding pipe fittings, can give operation error an obvious warning marker, and can effectively prevent from causing pipe leakage because omitting crimping.
To achieve these goals, technological scheme of the present invention is:
A kind of stainless steel clamp-press type connector for pipeline protective equipment, comprise stainless steel pipe 1, stainless steel joint for pipeline 3, seal for pipe joints circle 2, be set with pipeline seal ring 2 on stainless steel pipe 1 after, stainless steel joint for pipeline 3 is coated on stainless steel pipe 1 and seal for pipe joints circle 2, by special tool card, press and connect, it is characterized in that: on the seal for pipe joints circle 2 bulge loop cylindricals of stainless steel joint for pipeline 3, be provided with protecting cover 4, protecting cover 4 is coated on the seal for pipe joints circle 2 bulge loop cylindricals of stainless joint 3, protecting cover 4 is hot shortness's plastic materials, the color of protecting cover 4 is blue yellow or red according to the fluid characteristics of pipeline, at stainless steel steel joint 3 ports, be provided with protecting cover 5, protecting cover 5 is connected with the port of stainless steel joint for pipeline 3.
Preferably, described stainless steel joint for pipeline 3 is single deck tape-recorder pressure pipe joint or double card pressure pipe joint, the bore DN10-DN100 of pipe joint, and specification is straight-through or elbow or threeway or four-way.
Preferably, described protecting cover 4, is respectively blue, yellow, red according to the color of the fluid characteristics protecting cover 4 of pipeline, and its cobalt blue represents that potable water, yellow represent that combustion gas, redness represent solar heating.
Preferably, described protecting cover 5 by protecting cover body 5a, protecting cover Drop-proof barb 5c, tear sheet 5d and protecting cover hand draw ring 5b forms, protecting cover body 5a is tubulose, on protecting cover body 5a tubular body, be provided with the barb 5c of Drop-proof, at one of them port of protecting cover body 5a tubular body, be provided with and tear sheet 5d, tearing sheet 5d part is connected with protecting cover body 5a tubular body, on protecting cover body 5a tubular body, be provided with protecting cover hand draw ring 5b, protecting cover hand draw ring 5b is connected for local with protecting cover body 5a tubular body.
Beneficial effect of the present invention, owing to adopting technique scheme, use special tool coated coloured protecting cover on the seal for pipe joints circle bulge loop cylindrical of stainless steel joint for pipeline, its role is to: one, the different performance seal ring in the seal for pipe joints circle bulge loop cylindrical of the color of protecting cover and stainless steel joint for pipeline is corresponding, utilize the color difference (blue, yellow, red) of protecting cover to distinguish the different purposes (water, combustion gas, solar energy) of pipe fitting, very clear, effectively to have solved different usability pipe fittings differentiation.Two, when pressure welding pipe fittings, can give operation error (omission crimping) an obvious warning marker, can effectively prevent from causing pipe leakage because omitting crimping.Thousands of of the few persons of usage quantity of an engineering pipe fitting, up to ten thousand of many persons, workman misses the wherein crimping of several pipe joints in crimping construction, also not at all surprising, while waiting until last acceptance of work pipeline pressure test, pipeline has leak source, and pressure does not increase, check one by one pipe coupling, leaking appears in the pipe joint of just finding not crimping, crimping again, and the progress that not only affects engineering has been wasted again manpower and materials simultaneously.Another useful effect of the present invention's coated coloured protecting cover performance on the seal for pipe joints circle bulge loop cylindrical of stainless steel joint for pipeline is: crimping warning marker not, pipe joint because of all crimping, the coloured protecting cover being coated on seal for pipe joints circle bulge loop cylindrical has been crimped instrument extruding breakage and has dropped, and not intact being coated on seal for pipe joints circle bulge loop cylindrical that remain unchanged of the coloured protecting cover on the pipe joint of crimping, estimate simple and clear, therefore workman is when construction, there is this obvious warning marker, just can not miss the crimping of pipe joint, make project installation to checking and accepting disposable passing through.Its three, during tool using pressure welding pipe fittings, the protecting cover at seal for pipe joints circle bulge loop position plays certain lubrication, and the frictional force of pipe fitting and instrument is diminished, crimping sealing effect is better.Because the raw material of stainless steel clamp-press type pipe are high-quality stainless steel SUS304 and SUS316 material, be made, belong to chrome-nickel steel.And the material of crimping tool also belongs to high-intensity Tool Alloy steel, crimping tool is when the bulge loop of compacting stainless steel clamp-press type pipe, and two kinds of alloy steel materials crash together, until crimping tool overcomes the yield strength of pipe fitting, make its closure.Between this, between the bulge loop of pipe fitting surface and the groove surfaces of instrument, there is violent friction law, because violent friction pipe fitting bulge loop is surperficial and there is scratch in various degree on tool receptacle surface more, cause the life-span of pipe fitting surface breakdown and instrument to shorten, belong to very stiff and demanding a kind of state completely, protecting cover of the present invention has effectively separated direct the contacting of crimping tool with pipe fitting bulge loop surface, avoided the scratch of pipe fitting and tool surfaces to destroy, the working life of greatly having improved instrument.Four, port-guard lid can effectively prevent that job site dust and other foreign matters from entering in pipe fitting to be installed, affects the sanitation performance of pipe fitting.The present invention has been installed protecting cover additional in stainless steel pipe port position, and its tubular front end at protecting cover is provided with the barb of Drop-proof, and when protecting cover covers the port position of pipe fitting, Drop-proof barb is just stuck on the seal ring in pipe fitting bulge loop, prevents from dropping.In the time will using pipe fitting, need take off the protecting cover of pipe port, now only with hand refers to fasten the hand draw ring of protecting cover, slightly firmly once drawing, can take off protecting cover.Because port-guard lid can effectively prevent that job site dust and other foreign matters from entering in pipe fitting to be installed, played the straightway effect of guaranteeing pipeline.Using scope of the present invention is pressed the type classification of stainless steel clamp-press type pipe, comprises single deck tape-recorder pressure pipe joint and double card pressure pipe joint, and pipe fitting bore is from DN10-DN100, arbitrary specification that specification comprises is straight-through, elbow, threeway and stainless steel joint for pipeline comprise.The present invention is with low cost, and technique is simple, not only multiple functional, has guaranteed the quality of product, has improved greatly the class of product, achieves many things at one stroke.
Accompanying drawing explanation
Fig. 1 is the organigram of a kind of stainless steel clamp-press type connector for pipeline protective equipment of invention;
Fig. 2 is the A--A view of Fig. 1;
Fig. 3 is double card pressure pipe joint organigram of the present invention;
Fig. 4 is that schematic diagram is looked on Fig. 3 left side;
Fig. 5 is single deck tape-recorder pressure pipe joint organigram of the present invention;
Fig. 6 is protecting cover organigram of the present invention;
Fig. 7 is that the present invention takes off the schematic diagram of protecting cover at hand draw ring;
Fig. 8 is that protecting cover master of the present invention looks schematic diagram;
Fig. 9 is that schematic diagram is looked on a left side of Fig. 8;
Figure 10 is that protecting cover of the present invention partly cuts open schematic diagram;
Figure 11 is the stereogram of protecting cover of the present invention.
Attached number in the figure:
1. stainless steel pipe, 2. seal for pipe joints circle, 3. stainless steel joint for pipeline, 4. protecting cover, 5. protecting cover, 5. hexagonal nuts, 5a. protecting cover body, 5b. protecting cover hand draw ring, the barb of 5c. Drop-proof, 5d. tears sheet.
Embodiment
Below in conjunction with Figure of description, the embodiment of a kind of stainless steel clamp-press type connector for pipeline of the present invention protective equipment is further described.
As Fig. 1, shown in Fig. 2: a kind of stainless steel clamp-press type connector for pipeline protective equipment of the present invention, by stainless steel pipe 1, stainless steel joint for pipeline 3, seal for pipe joints circle 2, protecting cover 4 and protecting cover 5 form, be set with pipeline seal ring 2 on stainless steel pipe 1 after, stainless steel joint for pipeline 3 is coated on stainless steel pipe 1 and seal for pipe joints circle 2, on the seal for pipe joints circle 2 bulge loop cylindricals of stainless steel joint for pipeline 3, be provided with protecting cover 4, protecting cover 4 is coated on the seal for pipe joints circle 2 bulge loop cylindricals of stainless joint 3, at stainless steel steel joint 3 ports, be provided with protecting cover 5, protecting cover 5 is connected with the port of stainless steel joint for pipeline 3.
As shown in Figure 3, Figure 4: stainless steel joint for pipeline 3 is double card straightening connection for bbreather pipe.
As shown in Figure 5: stainless steel joint for pipeline 3 is single deck tape-recorder pressure pipe joint.
As shown in Fig. 8-11: protecting cover 4 is blue yellow or red according to the color of the fluid characteristics protecting cover 4 of pipeline, and its cobalt blue represents that potable water, yellow represent that combustion gas, redness represent solar heating, and protecting cover 4 is hot shortness's plastic materials.
As shown in Fig. 4-7: protecting cover 5 by protecting cover body 5a, protecting cover Drop-proof barb 5c, tear sheet 5d and protecting cover hand draw ring 5b forms, protecting cover body 5a is tubulose, on protecting cover body 5a tubular body, be provided with the barb 5c of Drop-proof, at one of them port of protecting cover body 5a tubular body, be provided with and tear sheet 5d, tearing sheet 5d part is connected with protecting cover body 5a tubular body, on protecting cover body 5a tubular body, be provided with protecting cover hand draw ring 5b, protecting cover hand draw ring 5b is connected for local with protecting cover body 5a tubular body.
The present invention is provided with color and is divided into indigo plant, Huang, red etc. protecting cover 4 on pipe fitting bulge loop cylindrical according to the fluid characteristics of pipeline, represent respectively the signs such as potable water, combustion gas, solar heating, effectively solved the differentiation of different usability pipe fittings, when pressure welding pipe fittings, can give operation error an obvious warning marker, and can effectively prevent from causing pipe leakage because omitting crimping.
The present invention has been installed protecting cover 5 additional in stainless steel pipe port position, its tubular front end at protecting cover is provided with the barb 5c of Drop-proof, when protecting cover 5 covers the port position of pipe fitting, the barb 5c of Drop-proof is just stuck on the seal ring in pipe fitting bulge loop, prevents from dropping.In the time will using pipe fitting, need take off the protecting cover 5 of pipe port, now only with hand refers to fasten protecting cover hand draw ring 5b, slightly firmly once drawing, can take off protecting cover 5, because port-guard lid 5 can effectively prevent that job site dust and other foreign matters from entering in pipe fitting to be installed, played the straightway effect of guaranteeing pipeline.
Above one embodiment of the present of invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the present patent application scope and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (3)
1. a stainless steel clamp-press type connector for pipeline protective equipment, comprise stainless steel pipe (1), stainless steel joint for pipeline (3), seal for pipe joints circle (2), stainless steel pipe (1) upper suit pipeline seal ring (2) afterwards stainless steel joint for pipeline (3) be coated on stainless steel pipe (1) and seal for pipe joints circle (2), by special tool card, press and connect, it is characterized in that: on seal for pipe joints circle (2) the bulge loop cylindrical of stainless steel joint for pipeline (3), be provided with protecting cover (4), protecting cover (4) is coated on seal for pipe joints circle (2) the bulge loop cylindrical of stainless joint (3), protecting cover (4) is hot shortness's plastic material, the color of protecting cover (4) is blue yellow or red according to the fluid characteristics of pipeline, at stainless steel steel joint (3) port, be provided with protecting cover (5), protecting cover (5) is connected with the port of stainless steel joint for pipeline (3), described protecting cover (5) is by protecting cover body (5a), protecting cover Drop-proof barb (5c), tearing sheet (5d) and protecting cover hand draw ring (5b) forms, protecting cover body (5a) is tubulose, on protecting cover body (5a) tubular body, be provided with the barb (5c) of Drop-proof, at one of them port of protecting cover body (5a) tubular body, be provided with and tear sheet (5d), tearing sheet (5d) part is connected with protecting cover body (5a) tubular body, on protecting cover body (5a) tubular body, be provided with protecting cover hand draw ring (5b), protecting cover hand draw ring (5b) is connected for local with protecting cover body (5a) tubular body.
2. a kind of stainless steel clamp-press type connector for pipeline protective equipment according to claim 1, it is characterized in that: stainless steel joint for pipeline (3) is single deck tape-recorder pressure pipe joint or double card pressure pipe joint, the bore DN10-DN100 of pipe joint, specification is straight-through or elbow or threeway or four-way.
3. a kind of stainless steel clamp-press type connector for pipeline protective equipment according to claim 1, it is characterized in that: the color of described protecting cover (4) is for blue yellow or red, and its cobalt blue represents that potable water, yellow represent that combustion gas, redness represent solar heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110366380.7A CN102392923B (en) | 2011-11-18 | 2011-11-18 | Clamping-type stainless steel protective device of pipe connection piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110366380.7A CN102392923B (en) | 2011-11-18 | 2011-11-18 | Clamping-type stainless steel protective device of pipe connection piece |
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| Publication Number | Publication Date |
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| CN102392923A CN102392923A (en) | 2012-03-28 |
| CN102392923B true CN102392923B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110366380.7A Active CN102392923B (en) | 2011-11-18 | 2011-11-18 | Clamping-type stainless steel protective device of pipe connection piece |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650362A (en) * | 2016-02-16 | 2016-06-08 | 成都格瑞思文化传播有限公司 | Water conservancy pipeline structure |
| CN109114310A (en) * | 2018-09-20 | 2019-01-01 | 西安华杰管道有限公司 | Double card presses anti-bacteria stainless steel pipeline and preparation method thereof |
| CN109161655A (en) * | 2018-09-20 | 2019-01-08 | 西安华杰管道有限公司 | Single deck tape-recorder presses anti-bacteria stainless steel pipeline and preparation method thereof |
| CN114033902B (en) * | 2021-11-09 | 2023-06-13 | 浙江天庆管业有限公司 | Novel clamping and pressing pipe end connecting joint |
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| CN2436759Y (en) * | 2000-08-04 | 2001-06-27 | 浙江铭仕管业有限公司 | Clamp-press type pipe element with protective sleeve |
| CN2839784Y (en) * | 2005-08-23 | 2006-11-22 | 浙江金德阀门有限公司 | Bayonet pressing aluminium plastic composite pipe fittings |
| CN201810921U (en) * | 2010-07-07 | 2011-04-27 | 浙江新大塑料管件有限公司 | Transitional joint for connection of steel pipeline and plastic pipeline |
| CN202381914U (en) * | 2011-11-18 | 2012-08-15 | 余张法 | Protective device for stainless steel compressing type pipeline connector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060191102A1 (en) * | 2005-02-15 | 2006-08-31 | Hayes Charles W Ii | Color-coded stainless steel fittings and ferrules |
| CN202001751U (en) * | 2011-03-29 | 2011-10-05 | 四川成双防腐材料有限公司 | Lightning protection connecting piece of gas pipe network |
| CN102168778A (en) * | 2011-05-09 | 2011-08-31 | 徐焕松 | Electromagnetic melting connection structure for plastic pipeline |
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2011
- 2011-11-18 CN CN201110366380.7A patent/CN102392923B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2436759Y (en) * | 2000-08-04 | 2001-06-27 | 浙江铭仕管业有限公司 | Clamp-press type pipe element with protective sleeve |
| CN2839784Y (en) * | 2005-08-23 | 2006-11-22 | 浙江金德阀门有限公司 | Bayonet pressing aluminium plastic composite pipe fittings |
| CN201810921U (en) * | 2010-07-07 | 2011-04-27 | 浙江新大塑料管件有限公司 | Transitional joint for connection of steel pipeline and plastic pipeline |
| CN202381914U (en) * | 2011-11-18 | 2012-08-15 | 余张法 | Protective device for stainless steel compressing type pipeline connector |
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| CN102392923A (en) | 2012-03-28 |
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Effective date of registration: 20180418 Address after: 325000 room 506, 5 new education village, Dou men residential district, Lucheng, Wenzhou, Zhejiang. Patentee after: Cai Bangyong Address before: 317604 Yuhuan County Zhugang Town, Taizhou City, Zhejiang province Zhejiang ZOJE Pipe Industry Co., Ltd. Patentee before: Yu Zhangfa |
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Effective date of registration: 20200415 Address after: 317600 bingang industrial city, Yuhuan City, Zhejiang Province Patentee after: Yu Zhangfa Address before: 325000 room 506, 5 new education village, Dou men residential district, Lucheng, Wenzhou, Zhejiang. Patentee before: Cai Bangyong |
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Effective date of registration: 20201020 Address after: 317600 bingang industrial city, Yuhuan City, Zhejiang Province Patentee after: ZHEJIANG BANNINGER PIPING SYSTEM Ltd. Address before: 317600 bingang industrial city, Yuhuan City, Zhejiang Province Patentee before: Yu Zhangfa |
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Address after: 153 Renhe Road, bingang industrial city, Yuhuan City, Zhejiang Province, 317600 Patentee after: Zhejiang bainigo intelligent pipe network Co.,Ltd. Address before: 317600 bingang industrial city, Yuhuan City, Zhejiang Province Patentee before: ZHEJIANG BANNINGER PIPING SYSTEM Ltd. |