CN110260058A - Composite delivery pipeline - Google Patents
Composite delivery pipeline Download PDFInfo
- Publication number
- CN110260058A CN110260058A CN201910697642.4A CN201910697642A CN110260058A CN 110260058 A CN110260058 A CN 110260058A CN 201910697642 A CN201910697642 A CN 201910697642A CN 110260058 A CN110260058 A CN 110260058A
- Authority
- CN
- China
- Prior art keywords
- assembly
- sealing
- sealing cover
- assembly protrusion
- inner tube
- 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
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 57
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000010779 crude oil Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/115—Caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of composite delivery pipelines, including an outer tube and an inner tube, said inner tube is vacantly set in the hollow cavity of outer tube, first sealing cover is arranged in the side of the outer tube, the other side of outer tube is provided with second sealing cover, first sealing cover, the two sides of whole outer tube of second seal cap sealing, there is an interior transfer passage among said inner tube, the medial end of first sealing cover is provided with the first assembly protrusion, the medial end of second sealing cover is provided with the second assembly protrusion, first assembly protrusion and the second assembly protrusion seal transfer passage in entire, more than one sealing device is equidistantly installed in interior transfer passage, one section of soft section is provided among first assembly protrusion.Present invention is especially suited for trandfer fluid class products, such as petroleum etc., can be filtered to crude oil, and can guarantee its mobility, and if be cut off among pipeline, the problem of oil leak will not occur, it can be achieved that quickly blocking, reduce the waste of resource.
Description
Technical field
The present invention relates to a kind of pipelines, and in particular to a kind of composite delivery pipeline.
Background technique
Pipeline is liquid, the common conveying member of gas, but the structure of pipeline generally all compares single, transports stone at present
The pipeline of oil is easy solidification since petroleum is pre-chilled, and mobility is deteriorated, it is therefore desirable to which applying certain heat and pressure could be defeated
It send, in addition there are a large amount of particle in petroleum, needs to carry out it pre-filtering, and pipeline is easy to lead after being cut off by external force
The a large amount of processes of substance for causing delivered inside, cause serious economic loss, these are all some shortcomings existing for current pipeline.
Summary of the invention
The technical problem to be solved by the present invention is to a kind of composite delivery pipelines, using a kind of completely new structure, Neng Gouyou
The solution of effect many deficiencies in the prior art.
The present invention is achieved through the following technical solutions: a kind of composite delivery pipeline, including an outer tube and one
Inner tube, said inner tube are vacantly set in the hollow cavity of outer tube, and first sealing cover is arranged in the side of the outer tube, outside
The other side of pipe is provided with second sealing cover, and the two sides of whole the first sealing cover, the second seal cap sealing outer tube are described interior
There is an interior transfer passage, the medial end of the first sealing cover is provided with the first assembly protrusion, the second sealing cover among pipe
Medial end is provided with the second assembly protrusion, and the first assembly protrusion and the second assembly protrusion seal transfer passage in entire,
More than one sealing device is equidistantly installed, first assembly is provided with one section of softness among protrusion in interior transfer passage
Section plays whole inner tube by the first assembly protrusion and the second assembly protrusion flying shore.
The first assembly protrusion is provided with a support portion on the bottom surface of the hollow cavity as a preferred technical solution,
The side of support portion support inner tube.
An arc groove is provided at the top of the support portion as a preferred technical solution, under the inner tube of face arc groove
End face is provided with curved rod, and arc bar part buckles into arc groove.
The first assembly protrusion and the second assembly protrusion are rigid plastics as a preferred technical solution, described soft
Soft segment is made of flexible rubber material, and soft section two sides are adhesively fixed with the first department of assembly two sides respectively.
It is an integral structure between first sealing cover, the first assembly protrusion as a preferred technical solution, among it
With a feed inlet, it is an integral structure between second sealing cover and the second assembly protrusion, there is one to go out among it
Material mouth.
The sealing device includes a fixed hub as a preferred technical solution, opens up one two among fixed hub
The assembly cavity of end opening, one filter screen of sealing installation in assembly cavity are provided with the first aperture of multiple row on the filter screen, respectively arrange the
It is disposed in parallel relation to one another between one aperture, the fixed hub bottom of the first aperture of face each column opens up a through slot, inserts in through slot
Enter a diaphragm seal, the first aperture that the column are corresponded on diaphragm seal is provided with the second orifice of equal number, the side of diaphragm seal
The side face contact in face and filter screen, when the first aperture faces second orifice, entire sealing device or so end is mutually conducted.
One end of the diaphragm seal stretches out in the outside of inner tube as a preferred technical solution, and the external of diaphragm seal stretches out
One arc-like sheet of end connection, forms a spatia, one group or more of spring is provided in the spatia between arc-like sheet and outer tube,
Spring one end adhering and sealing piece, the other end are bonded arc-like sheet, and spring ejects arc-like sheet outward, the other end bottom of diaphragm seal with
A gap section is formed between assembly cavity bottom surface.
The diaphragm seal is all made of a hard plastic sheet as a preferred technical solution, outside wrap up one layer of silica gel
Sealant, it is in sealing contact by silica gel sealing layer and through slot inner wall.
The beneficial effects of the present invention are: the one, present invention uses the structure of inner and outer pipes, inner tube is vacantly set among outer tube,
Therefore heat-proof quality is good, can be adapted for the conveying for keeping the temperature class product；
Two, the present invention can make the place at fracture port be effectively sealed after pipeline is integrally cut in half,
It prevents from continuing conveying；
Three, the present invention has multiple groups filtering, can effectively filter out the particulate matter among conveying object, play coarse filtration
Purpose.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is end face structure figure of the invention.
Specific embodiment
As depicted in figs. 1 and 2, this composite delivery pipeline, including an outer tube 1 and an inner tube 9, inner tube 9 are vacantly arranged
In hollow cavity 3 inside outer tube 1, first sealing cover 11 is arranged in the side of outer tube 1, and the other side of outer tube 1 is provided with one
A second sealing cover 18, the first sealing cover 11, the second sealing cover 18 seal the two sides of whole outer tube 1, have one among inner tube 9
Interior transfer passage 16, the medial end of the first sealing cover 11 are provided with the first assembly protrusion 12, the inner end of the second sealing cover 18
Portion is provided with the second assembly protrusion 17, and the first assembly protrusion 12 and the second assembly protrusion 17 seal transfer passage in entire
16, more than one sealing device is equidistantly installed in interior transfer passage 16, is provided with one section of softness among the first assembly protrusion
Section 13 plays whole inner tube 9 by the first assembly protrusion 12 and the second assembly 17 flying shore of protrusion.
In the present embodiment, first assembly protrusion 12 is provided with a support portion 14, the support portion on the bottom surface of hollow cavity 3
The side of 14 support inner tubes 9, the top of support portion 14 are provided with an arc groove, and the inner tube lower end surface of face arc groove is provided with arc
Shape bar 15,15 part of curved rod buckle into arc groove, and when inner tube 9 normally conveys, inner tube softness section side becomes in order to prevent
Shape, therefore it is provided with the rotary support portion 14, it can be used as the support of side in normal transmission, so that inner tube is vacantly set
It is placed in outer tube.
Wherein, the first assembly protrusion 12 and the second assembly protrusion 17 are rigid plastics, and soft section 13 is flexible rubber material
Material is made, and soft 13 two sides of section are adhesively fixed with 12 two sides of the first department of assembly respectively, by the way that soft section 13 is arranged, works as inner tube in this way
After 9 middle positions are cut off, cutting one end of inner tube 9 is fallen, and is contacted with outer tube bottom surface, and the flexible portion far from section one end becomes
Shape bending, at this time under the effect of gravity, sealing device sealing, whole at this time inner tube cannot continue to convey, and block the loss of resource.
Wherein, it is an integral structure between the first sealing cover 11, first assembly protrusion 12, there is a feed inlet among it
(not shown) is an integral structure between the second sealing cover 18 and the second assembly protrusion 17, has a discharge port (not among it
Diagram).
Wherein, as shown in Figure 1, sealing device includes a fixed hub 5, a both ends open is opened up among fixed hub 5
Assembly cavity 51, one filter screen 2 of sealing installation in assembly cavity 51 is provided with the first aperture of multiple row 4, each column first on filter screen 2
It is disposed in parallel relation to one another between aperture 4, the fixed hub bottom of the first aperture of face each column 4 opens up a through slot, inserts in through slot
Enter a diaphragm seal 6, the first aperture that the column are corresponded on diaphragm seal 6 is provided with the second orifice 61 of equal number, diaphragm seal 6
The side face contact of one side and filter screen 2, when the first aperture 4 faces second orifice 61, entire sealing device or so end is mutual
It is conducted, one end of diaphragm seal 6 stretches out in the outside of inner tube 9, and the external extension end of diaphragm seal connects an arc-like sheet 8, arc-like sheet 8
A spatia is formed between outer tube, is provided with one group or more of spring 7 in the spatia, 7 one end adhering and sealing piece of spring,
The other end is bonded arc-like sheet 8, and spring 7 ejects arc-like sheet outward, shape between the other end bottom and assembly cavity bottom surface of diaphragm seal 6
At a gap section.When normal transmission, under the action of spring 7, the second orifice on diaphragm seal faces the first aperture, this
When can be discharged with normally, once inner tube be broken, bottom of inner tube push, nearest sealing device and outer tube at fracture port
Bottom surface contact, at this time under the effect of gravity, the sealing device insertion contacted with outer tube wall, so that the second orifice on diaphragm seal
It misplaces with the first aperture, i.e. salable fluid, prevents from continuing to discharge, reduce the loss of resource at this time.In normal transmission, aperture
It can be used as filtering to use, achieve the purpose that coarse filtration.
In the present embodiment, diaphragm seal 6 is all made of a hard plastic sheet, outside wrap up one layer of silica gel sealing layer, pass through
Silica gel sealing layer and through slot inner wall are in sealing contact.
The beneficial effects of the present invention are: the one, present invention uses the structure of inner and outer pipes, inner tube is vacantly set among outer tube,
Therefore heat-proof quality is good, can be adapted for the conveying for keeping the temperature class product；
Two, the present invention can make the place at fracture port be effectively sealed after pipeline is integrally cut in half,
It prevents from continuing conveying；
Three, the present invention has multiple groups filtering, can effectively filter out the particulate matter among conveying object, play coarse filtration
Purpose.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention
Protection scope should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of composite delivery pipeline, it is characterised in that: including an outer tube and an inner tube, said inner tube is vacantly set to outer
In hollow cavity inside pipe, first sealing cover is arranged in the side of the outer tube, and the other side of outer tube is provided with one second
Sealing cover, the two sides of whole the first sealing cover, the second seal cap sealing outer tube, said inner tube centre have conveying in one logical
Road, the medial end of the first sealing cover are provided with the first assembly protrusion, and the medial end of the second sealing cover is provided with the second assembly
Protrusion, the first assembly protrusion and the second assembly protrusion seal transfer passage in entire, are equidistantly equipped in interior transfer passage
More than one sealing device, first assembly are provided with one section of soft section among protrusion, pass through the first assembly protrusion and the
Two assembly protrusion flying shores play whole inner tube.
2. composite delivery pipeline as described in claim 1, it is characterised in that: close to the first assembly on the bottom surface of the hollow cavity
Protrusion is provided with a support portion, which supports the side of inner tube.
3. composite delivery pipeline as claimed in claim 2, it is characterised in that: be provided with an arc at the top of the support portion
Slot, the inner tube lower end surface of face arc groove are provided with curved rod, and arc bar part buckles into arc groove.
4. composite delivery pipeline as described in claim 1, it is characterised in that: the first assembly protrusion and the second assembly protrusion
Be rigid plastics, it is described softness section be made of flexible rubber material, soft section two sides respectively with two side bonds of the first department of assembly
It is fixed.
5. composite delivery pipeline as described in claim 1, it is characterised in that: first sealing cover, first assembly protrusion it
Between be an integral structure, among it have a feed inlet, second sealing cover and second assembly protrusion between be integral type
Structure has a discharge port among it.
6. composite delivery pipeline as described in claim 1, it is characterised in that: the sealing device includes a fixed hub, Gu
The intermediate assembly cavity for opening up a both ends open of dead axle set, the interior sealing of assembly cavity are installed a filter screen, are arranged on the filter screen
There is the first aperture of multiple row, is disposed in parallel relation to one another between each the first aperture of column, the fixed hub bottom of the first aperture of face each column is equal
A through slot is opened up, a diaphragm seal is inserted into through slot, the first aperture that the column are corresponded on diaphragm seal is provided with equal number
Second orifice, the one side of diaphragm seal and the side face contact of filter screen, it is entirely close when the first aperture faces second orifice
Seal apparatus or so end is mutually conducted.
7. composite delivery pipeline as claimed in claim 6, it is characterised in that: one end of the diaphragm seal stretches out in the outer of inner tube
The external extension end in portion, diaphragm seal connects an arc-like sheet, forms a spatia between arc-like sheet and outer tube, sets in the spatia
It is equipped with one group or more of spring, spring one end adhering and sealing piece, the other end is bonded arc-like sheet, and spring ejects arc-like sheet outward,
A gap section is formed between the other end bottom and assembly cavity bottom surface of diaphragm seal.
8. composite delivery pipeline as claimed in claim 6, it is characterised in that: the diaphragm seal is all made of a hard plastic sheet,
One layer of silica gel sealing layer is wrapped up outside it, it is in sealing contact by silica gel sealing layer and through slot inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697642.4A CN110260058B (en) | 2019-07-30 | 2019-07-30 | Composite conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697642.4A CN110260058B (en) | 2019-07-30 | 2019-07-30 | Composite conveying pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110260058A true CN110260058A (en) | 2019-09-20 |
| CN110260058B CN110260058B (en) | 2020-11-24 |
Family
ID=67912420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910697642.4A Active CN110260058B (en) | 2019-07-30 | 2019-07-30 | Composite conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110260058B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852351A (en) * | 2020-06-23 | 2020-10-30 | 肖云东 | Oil field special buckle oil pipe short joint |
| CN113719676A (en) * | 2021-09-06 | 2021-11-30 | 安徽地矿建设工程有限责任公司 | Seepage-proofing method for easy-to-break part of long-distance PE (polyethylene) dragging pipe pipeline interface |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120008422U (en) * | 2011-05-31 | 2012-12-10 | 김창호 | A hose connector with improved sealing properties |
| CN205948457U (en) * | 2016-08-11 | 2017-02-15 | 四川绿宝园林景观工程有限公司 | Self -interacting formula sewage filter |
| CN208619877U (en) * | 2018-06-23 | 2019-03-19 | 成都惟尚建筑设计有限公司 | A kind of support of duct |
| CN109915665A (en) * | 2019-03-22 | 2019-06-21 | 俞权锋 | A kind of sewage pipe |
| CN109973755A (en) * | 2019-04-08 | 2019-07-05 | 王曙光 | Double-layer composite pipe |
-
2019
- 2019-07-30 CN CN201910697642.4A patent/CN110260058B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120008422U (en) * | 2011-05-31 | 2012-12-10 | 김창호 | A hose connector with improved sealing properties |
| CN205948457U (en) * | 2016-08-11 | 2017-02-15 | 四川绿宝园林景观工程有限公司 | Self -interacting formula sewage filter |
| CN208619877U (en) * | 2018-06-23 | 2019-03-19 | 成都惟尚建筑设计有限公司 | A kind of support of duct |
| CN109915665A (en) * | 2019-03-22 | 2019-06-21 | 俞权锋 | A kind of sewage pipe |
| CN109973755A (en) * | 2019-04-08 | 2019-07-05 | 王曙光 | Double-layer composite pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852351A (en) * | 2020-06-23 | 2020-10-30 | 肖云东 | Oil field special buckle oil pipe short joint |
| CN111852351B (en) * | 2020-06-23 | 2022-02-25 | 大庆市奈固石油机械设备制造有限公司 | Oil field special buckle oil pipe short joint |
| CN113719676A (en) * | 2021-09-06 | 2021-11-30 | 安徽地矿建设工程有限责任公司 | Seepage-proofing method for easy-to-break part of long-distance PE (polyethylene) dragging pipe pipeline interface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110260058B (en) | 2020-11-24 |
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Address after: 322000 intellectual property gathering area 204-1, building 2a, science and technology entrepreneurship Park, 968 Xuefeng West Road, Yiwu City, Jinhua City, Zhejiang Province Applicant after: Yiwu danhang Technology Co.,Ltd. Address before: 322000 second floor, No.8, building 8, no.359, Tangxi Road, Jiangdong Street, Yiwu City, Jinhua City, Zhejiang Province Applicant before: Yiwu danhang Technology Co.,Ltd. |
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Effective date of registration: 20201106 Address after: 322000 second floor, No.8, building 8, no.359, Tangxi Road, Jiangdong Street, Yiwu City, Jinhua City, Zhejiang Province Applicant after: Yiwu danhang Technology Co.,Ltd. Address before: 322105 Pantian Village, Geshan Town, Dongyang City, Jinhua City, Zhejiang Province, No. 1-42 Applicant before: Wu Hangjun |
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