CN103527848B - Ultra-large caliber PE pipe hauling construction drawing head - Google Patents
Ultra-large caliber PE pipe hauling construction drawing head Download PDFInfo
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- CN103527848B CN103527848B CN201310535881.2A CN201310535881A CN103527848B CN 103527848 B CN103527848 B CN 103527848B CN 201310535881 A CN201310535881 A CN 201310535881A CN 103527848 B CN103527848 B CN 103527848B
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Classifications
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- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to non-excavating construction equipment technical field, more particularly, to a kind of ultra-large caliber PE pipe hauling construction drawing head.It solves the problems such as existing drawing head connection is not firm enough.This drawing head includes that PE pipe body ends and tubular traction cylinder can be plugged in, the outer wall of described traction cylinder leans with described PE pipe inboard wall of tube body, it is provided with and is used for the connected fixed mechanism of traction cylinder and PE pipes body on traction cylinder, described traction barrel end, which is fixed with, to be provided with bail by the traction end cap of described PE pipe body end-encloseds, described traction end cap end.Compared with prior art, this ultra-large caliber PE pipe hauling construction is with the advantages of drawing head：Simple in construction, intensity is high, is connected firmly, and is not easy to depart from body during traction, can bear, compared with large traction, body uniform force, to be not likely to produce fracture, body is not easy to be scraped off, and plugging effect is good, is not easy to be contaminated in body, easy for installation.
Description
Technical field
The invention belongs to non-excavating construction equipment technical field, is used more particularly, to a kind of ultra-large caliber PE pipe hauling construction
Drawing head.
Background technology
No-excavation construction method is the late nineteen eighties to introduce China, is used for during the no-dig directional driller introduced at that time
The dilatory pipe of the smaller Φ 80 of some calibers, Φ 110, Φ 160.After China is introduced into, no-excavation construction method is by China
Every profession and trade adopted, for example, telecommunications industry, water supply industry, power industry, draining, emission industry etc..As reform is opened
The continuity put, the basic facilities that the Urbanization Construction in China constantly accelerates urbanization are in place and perfect, to be laid in Urban Underground
One pipe network is to be increasingly difficult to, and only non-excavating construction is unique selection.As urban population density is increasing, super large caliber
The non-excavation laying of pipeline is more and more, and this is just very high to the drawing head requirement for pulling body.Existing drawing head is more
Using a kind of " tapered cap ", i.e., several holes are beaten with " tapered cap " tubing, be fixed on snap bolt in " tapered cap ", just
Hauling construction.Some simply make a call to four holes on PE pipes, directly put on steel wire rope buckle well it is just dilatory, " tapered cap " not yet
With.After so drawing, cleaning in pipeline must spend many water to rinse well, cause water resource waste, add pipe laying
Cost, in addition existing drawing head also there is：Structural strength is low, is easily slipped when dilatory, body easy fracture when drawing,
Body easily scratches, and body closure is poor, the problems such as body discontinuity.
In order to solve the problems, such as that prior art is present, people have carried out long-term exploration, it is proposed that miscellaneous solution
Scheme.For example, Chinese patent literature discloses a kind of traction tube [application number：201020685354.1], including outer tube, blocking
Piece, steel reinforced pipe and punching bolt, the external diameter and wall thickness of its middle external tube are identical with trailed MPP pipelines, blocking piece it is straight
The external diameter of footpath and reinforced pipe is identical with the internal diameter of outer tube respectively, and blocking piece is fixedly connected on one in the inner chamber of outer tube and with outer tube
Rise, reinforced pipe inserts the outer end of blocking piece, outer tube it is mutually neat with the external port of reinforced pipe and at external port 1/3rd with
Radial direction through hole is respectively equipped with 2/3rds, the axis of 2 radial direction through hole is mutually orthogonal, and punching bolt is 2, respectively penetrates 2
Individual radial direction through hole, the both ends of each punching bolt are stretched out the outer wall of outer tube and fastened respectively with nut respectively.
Such scheme solves the problems, such as existing traction tube plugging effect difference to a certain extent, but the program is still
There is：Structural strength is low, and connection is not firm enough, is easily slipped when dilatory, and body easy fracture when drawing, body easily scratches, body
Plugging effect is poor, the problem of body discontinuity.
The content of the invention
Regarding the issue above, the present invention provides it is a kind of simple and reasonable, it is connected firmly, plugging effect is good
Ultra-large caliber PE pipe hauling construction drawing head.
To reach above-mentioned purpose, present invention employs following technical proposal：This ultra-large caliber PE pipe hauling construction is drawn
Head, it is characterised in that this drawing head includes that PE pipe body ends and tubular traction cylinder, described pull cylinder can be plugged in
The outer wall of body leans with described PE pipe inboard wall of tube body, is provided with traction cylinder and is used to consolidate traction cylinder and PE pipe bodys
Fixed mechanism even, described traction barrel end is fixed with can be by the traction end cap of described PE pipe body end-encloseds, institute
The traction end cap end stated is provided with bail.It can be not susceptible to depart from by PE pipe body fixations, during traction using the structure,
PE pipe bodys are not likely to produce fracture, while the PE pipes tubular body after traction is without cleaning.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, described fixed mechanism include it is some can radially
The fixture being located on traction cylinder and PE pipe bodys, each fixture are in a discrete distribution along helix.Obviously, each fixation
Helically line distribution is set part so that fixture is radially with axially not on straight line, ensureing that pulling force disperses during traction, draws
When PE pipe bodys it is not easy to break.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, each fixture is on traction cylinder cross section
Projection is respectively positioned on same circumference and is uniformly distributed in a circumferential direction.PE pipe body uniform forces when the structure to draw,
Traction is more laborsaving.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, described fixture includes radially being located in traction
Cylindrical pin with external thread on cylinder and PE pipe bodys, the welding of traction cylinder inboard wall is inherently welded in the end sleeve of cylindrical pin with external thread
Nut, be also connected the clamp nut being set up in parallel with welded nut in the end of cylindrical pin with external thread.Welded nut makes in the structure
Cylindrical pin with external thread is easier for installation, clamp nut causes the fixation of cylindrical pin with external thread, while during in order to reduce traction
Resistance, the outer end of cylindrical pin with external thread flush with the outer wall of PE pipe bodys.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, the screw thread segment length of described cylindrical pin with external thread is
2-3 times of welded nut thickness；The quantity of described fixture is 4-16.The length of thread segment ensure that fastening in the structure
The normal mounting of nut, as a kind of preferred scheme, the quantity of fixture here is 8.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, described traction end cap includes being fixed on pull cylinder
Body end portion and tapered end cap skeleton, described end cap skeleton are provided with the shrouding in cone.It ensure that in distraction procedure
In, the mud of grouting will not enter in PE pipe bodys, avoid pollution PE pipe tubular bodies, it is not required that rushed with substantial amounts of water
Wash.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, described end cap skeleton includes some in circumference side
To the equally distributed body of rod, the described body of rod includes the first company being connected by welding manner with the inwall of described traction cylinder
Socket part, described first connecting portion are connected with the rake being obliquely installed, and the end of each rake is come together in traction cylinder
Axis extended line and second connecting portion is formed in rake end, each second connecting portion set parallel to traction cylinder axis and
It is connected with bail.The structure make it that the structural strength of end cap skeleton is higher, in order to avoid bail and second connects during traction
Socket part departs from, and bail here is connected by welding manner with second connecting portion.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, the one end of described shrouding away from bail is provided with
Cylinder is protected, described protection cylinder one end is connected with described shrouding, and the other end is fitted on PE pipe bodys.In order to ensure to lead
Protect cylinder indeformable when drawing, be additionally provided with supporting construction in protection cylinder body, traction cylinder is locally plugged on PE pipe pipes during installation
In vivo, protection cylinder body is not plugged on the periphery of the part of PE pipe bodys positioned at traction cylinder.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, described protection cylinder includes tubular straight
Portion, the diameter of described flat part is equal with the diameter of PE pipe bodys, and described flat part upper end is provided with arc choke, and institute
The arc choke stated is connected by welding manner with described shrouding.Preferably, flat part and PE pipe bodys pair here
Connect, so as to ensure being normally carried out for traction so that flat part can protect PE pipe bodys, avoid its surface tear, arc choke
Full circle is played a part of in the hole that can be drilled to orientation, while reduces the mill resistance coefficient of hole wall and PE pipe bodys；Flat part can also
Extend on PE pipe body lateral walls.
In above-mentioned ultra-large caliber PE pipe hauling construction drawing head, some difference are additionally provided with described pull cylinder body
The support bar being distributed along the different diameter of traction cylinder, the both ends distribution of each support bar are connected and respectively with the inwall of traction cylinder
Support bar is uniformly distributed in a circumferential direction；The end of described first connecting portion contacts with support bar.This arrangement enhances lead
Draw the structural strength of cylinder, prevent from being deformed in distraction procedure.
Compared with prior art, this ultra-large caliber PE pipe hauling construction is with the advantages of drawing head：It is simple in construction, by force
Degree is high, is connected firmly, and is not easy to depart from body during traction, can bear, compared with large traction, body uniform force, to be not likely to produce disconnected
Split, body is not easy to be scraped off, and plugging effect is good, is not easy to be contaminated in body, easy for installation.
Brief description of the drawings
Fig. 1 is structural representation provided by the invention.
Fig. 2 is sectional view provided by the invention.
In figure, PE pipes body 1, traction cylinder 2, traction end cap 3, shrouding 31, the body of rod 32, first connecting portion 321, rake
322nd, second connecting portion 323, bail 4, fixture 5, cylindrical pin with external thread 51, welded nut 52, clamp nut 53, protection cylinder
6th, flat part 61, arc choke 62, support bar 7.
Embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1-2, this ultra-large caliber PE pipe hauling construction drawing head, including the end of PE pipes body 1 can be plugged in
And tubular traction cylinder 2, the outer wall of traction cylinder 2 lean with the inwall of PE pipes body 1, are provided with and use on traction cylinder 2
It is fixed with and the end of PE pipes body 1 can be sealed in by the connected fixed mechanism of traction cylinder 2 and PE pipes body 1, traction cylinder 2 end
The traction end cap 3 closed, traction end cap 3 end are provided with bail 4.Can be by the fixation of PE pipes body 1, during traction using the structure
It is not susceptible to depart from, PE pipes body 1 is not likely to produce fracture, while the inside of PE pipes body 1 after traction is without cleaning.
As a kind of preferred scheme, the fixed mechanism in the present embodiment includes some can radially be located in and draws cylinder 2
With the fixture 5 on PE pipes body 1, each fixture 5 is in a discrete distribution along helix so that the radial direction of fixture 5 and axial direction
Not on the straight line, ensure that pulling force disperses during traction, PE pipes body 1 is not easy to break during traction.Further, each fixture
5 projection on traction cylinder 2 cross section is respectively positioned on same circumference and is uniformly distributed in a circumferential direction.The structure to lead
The uniform force of PE pipes body 1 when drawing, traction are more laborsaving.Fixture 5 includes radially being located in traction cylinder 2 and PE pipes body 1
On cylindrical pin with external thread 51, cylindrical pin with external thread 51 end sleeve inherently be welded on traction the inwall of cylinder 2 welded nut 52,
The end of cylindrical pin with external thread 51 is also connected the clamp nut 53 being set up in parallel with welded nut 52, the side of welded nut 52 in the structure
Cylindrical pin with external thread 51 installation, clamp nut 53 cause cylindrical pin with external thread 51 fixation, while in order to reduce traction
When resistance, the outer end of cylindrical pin with external thread 51 flushes with the outer wall of PE pipes body 1.The screw thread segment length of cylindrical pin with external thread 51 is welding
2-3 times of the thickness of nut 52；The quantity of fixture 5 is 4-16.The length of thread segment ensure that clamp nut 53 in the structure
Normal mounting, as a kind of preferred scheme, the quantity of fixture 5 here is 8.
Traction end cap 3 in the present embodiment includes being fixed on the traction end of cylinder 2 and tapered end cap skeleton, end cap bone
Frame is provided with the shrouding 31 in cone, ensure that in distraction procedure, and the mud of grouting will not enter in PE pipes body 1, keep away
Exempt from inside pollution PE pipes body 1, it is not required that rinsed with substantial amounts of water.End cap skeleton includes some uniform in circumferencial direction
The body of rod 32 of distribution, the body of rod 32 include the first connecting portion being connected by welding manner with the inwall of described traction cylinder 2
321, first connecting portion 321 is connected with the rake 322 being obliquely installed, and the end of each rake 322 comes together in traction cylinder 2
Axis extended line and the end of rake 322 formed second connecting portion 323, each second connecting portion 323 parallel to traction cylinder 2
Axis sets and is connected with bail 4, and the structure make it that the structural strength of end cap skeleton is higher, in order to avoid being led during traction
Draw ring 4 with second connecting portion 323 to depart from, bail 4 here is connected by welding manner with second connecting portion 323.Shrouding 31
One end away from bail 4 is provided with protection cylinder 6, and protection one end of cylinder 6 is connected with described shrouding 31, and the other end is fitted in PE
Protect cylinder 6 indeformable on pipe body 1, during in order to ensure traction, protect in cylinder 6 and be additionally provided with supporting construction, will lead during installation
Draw the part of cylinder 2 to be plugged in PE pipes body 1, protection cylinder 6 is not plugged on the part of PE pipes body 1 positioned at traction cylinder 2
Periphery.Protection cylinder 6 includes tubular flat part 61, and the diameter of flat part 61 is equal with the diameter of PE pipes body 1, flat part
61 upper ends are provided with arc choke 62, and arc choke 62 is connected by welding manner with described shrouding 31, here flat
Straight portion 61 is docked with PE pipes body 1, so as to ensure being normally carried out for traction so that flat part 61 can protect PE pipes body 1, avoid
Its surface tear, full circle is played a part of in the hole that arc choke 62 can be drilled to orientation, while reduces hole wall and PE pipes body 1
Mill resistance coefficient；Flat part 61 can also be extended on the lateral wall of PE pipes body 1.It is strong in order to improve the structure of traction cylinder 2
Degree, prevents from being deformed in distraction procedure, draws and some diameters different respectively along traction cylinder 2 are additionally provided with cylinder 2
The support bar 7 of distribution, each support bar 7 both ends distribution with traction cylinder 2 inwall be connected and each support bar 7 in a circumferential direction
It is uniformly distributed；The end of first connecting portion 321 contacts with support bar 7.
During installation, first the part for drawing cylinder 2 is plugged in PE pipes body 1, being drilled out out of welded nut 52 to pass through
The through hole of the side wall of PE pipes body 1 is worn, reaming then is carried out to through hole from the lateral wall of PE pipes body 1, then by cylindrical pin with external thread 51
Insert in through hole, the end of cylindrical pin with external thread 51 is connected with welded nut 52 and clamp nut 53 respectively, so as to realize traction cylinder 2
With being fixedly linked for PE pipes body 1, bail 4 is connected with haulage gear, so as to realize the traction of PE pipe bodys.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although PE pipes body 1, traction cylinder 2, traction end cap 3, shrouding 31, the body of rod 32, first have more been used herein
It is connecting portion 321, rake 322, second connecting portion 323, bail 4, fixture 5, cylindrical pin with external thread 51, welded nut 52, tight
Gu the terms such as nut 53, protection cylinder 6, flat part 61, arc choke 62, support bar 7, but be not precluded from using other terms
Possibility.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；It is construed as appointing
A kind of what additional limitation is all disagreed with spirit of the present invention.
Claims (6)
1. a kind of ultra-large caliber PE pipe hauling construction drawing head, it is characterised in that this drawing head includes that PE pipe pipes can be plugged in
Body (1) end and tubular traction cylinder (2), the outer wall of described traction cylinder (2) and described PE pipes body (1) inwall
Lean, be provided with cylinder (2) is drawn and be used to that the fixed mechanism that cylinder (2) and PE pipes body (1) are connected will to be drawn, it is described
Traction cylinder (2) end is fixed with can be by the traction end cap (3) of described PE pipes body (1) end-enclosed, described traction end
Lid (3) end is provided with bail (4)；Described fixed mechanism includes some can radially be located in and draws cylinder (2) and PE pipes
Fixture (5) on body (1), each fixture (5) are in a discrete distribution along helix；Each fixture (5) is in pull cylinder
Projection on body (2) cross section is respectively positioned on same circumference and is uniformly distributed in a circumferential direction；Described traction end cap (3) bag
Include and be fixed on traction cylinder (2) end and tapered end cap skeleton, described end cap skeleton is provided with the shrouding in cone
(31)；Described end cap skeleton includes logical including some in the equally distributed body of rod of circumferencial direction (32), the described body of rod (32)
Cross the first connecting portion (321) that welding manner is connected with the inwall of described traction cylinder (2), described first connecting portion
(321) rake (322) being obliquely installed is connected with, the end of each rake (322) comes together in the axis of traction cylinder (2)
Extended line and rake (322) end formed second connecting portion (323), each second connecting portion (323) parallel to traction cylinder
(2) axis sets and is connected with bail (4).
2. according to the ultra-large caliber PE pipe hauling construction drawing head described in claim 1, it is characterised in that described fixture
(5) cylindrical pin with external thread (51) being radially located on traction cylinder (2) and PE pipes body (1) is included, in cylindrical pin with external thread (51)
End sleeve be inherently welded on traction cylinder (2) inwall welded nut (52), the end of cylindrical pin with external thread (51) also be connected
The clamp nut (53) being set up in parallel with welded nut (52).
3. according to the ultra-large caliber PE pipe hauling construction drawing head described in claim 2, it is characterised in that described thread cylinder
The screw thread segment length for selling (51) is 2-3 times of welded nut (52) thickness；The quantity of described fixture (5) is 4-16.
4. according to the ultra-large caliber PE pipe hauling construction drawing head described in claim 1 or 2 or 3, it is characterised in that described envelope
The one end of plate (31) away from bail (4) is provided with protection cylinder (6), described protection cylinder (6) one end and described shrouding
(31) it is connected, the other end is fitted on PE pipes body (1).
5. according to the ultra-large caliber PE pipe hauling construction drawing head described in claim 4, it is characterised in that described protection cylinder
(6) tubular flat part (61) is included, the diameter of described flat part (61) is equal with the diameter of PE pipes body (1), described
Flat part (61) upper end be provided with arc choke (62), and described arc choke (62) by welding manner with it is described
Shrouding (31) is connected.
6. according to the ultra-large caliber PE pipe hauling construction drawing head described in claim 4, it is characterised in that described traction cylinder
(2) support bar (7) that some diameters different respectively along traction cylinder (2) are distributed, the both ends of each support bar (7) are additionally provided with
Distribution is connected with the inwall of traction cylinder (2) and each support bar (7) is uniformly distributed in a circumferential direction；Described first connecting portion
(321) end contacts with support bar (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310535881.2A CN103527848B (en) | 2013-11-01 | 2013-11-01 | Ultra-large caliber PE pipe hauling construction drawing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310535881.2A CN103527848B (en) | 2013-11-01 | 2013-11-01 | Ultra-large caliber PE pipe hauling construction drawing head |
Publications (2)
| Publication Number | Publication Date |
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| CN103527848A CN103527848A (en) | 2014-01-22 |
| CN103527848B true CN103527848B (en) | 2018-01-16 |
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| CN201310535881.2A Active CN103527848B (en) | 2013-11-01 | 2013-11-01 | Ultra-large caliber PE pipe hauling construction drawing head |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3027195A1 (en) * | 2016-06-11 | 2017-12-14 | Corrpro Companies, Inc. | System and method for protecting one or more pipes against corrosion and corrosion-protected pipe |
| CN110260052B (en) * | 2019-06-17 | 2021-04-02 | 中国一冶集团有限公司 | Group pipe laying device at exit of pipe gallery on two sides of road and using method thereof |
| CN110763298B (en) * | 2019-10-31 | 2021-09-28 | 广船国际有限公司 | Depth measuring tube |
| CN111720623A (en) * | 2020-07-07 | 2020-09-29 | 海南前途工程设计有限公司 | Non-excavation lead-in pipe construction method |
| CN112344090B (en) * | 2020-09-25 | 2022-03-01 | 中国化学工程第六建设有限公司 | Multilayer piping lane poling mould |
| CN114754196B (en) * | 2021-01-08 | 2024-04-30 | 中国石油天然气集团有限公司 | Special drag head for sea pipe landing directional drill and sea pipe landing directional drill system |
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| US4318639A (en) * | 1980-05-12 | 1982-03-09 | Schosek William O | Connector fitting for use in installing underground plastic pipes |
| US6098708A (en) * | 1997-04-02 | 2000-08-08 | Terra Ag Fuer Tiefbautechnik | Apparatus for pulling a pipe into an earth bore |
| RU2359164C1 (en) * | 2008-02-28 | 2009-06-20 | Федеральное государственное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) | Device for trenchless replacement of underground pipelines |
| CN202228786U (en) * | 2011-09-22 | 2012-05-23 | 淮南联合大学 | MPP (Modified Polypropylene) traction pipe |
| CN203656362U (en) * | 2013-11-01 | 2014-06-18 | 浙江富浩管业有限公司 | Dragging and construction drawing head for ultra large caliber PE pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003060282A2 (en) * | 2002-01-14 | 2003-07-24 | Earth Tool Company, L.L.C. | Method and apparatus for replacement of underground pipe |
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2013
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4318639A (en) * | 1980-05-12 | 1982-03-09 | Schosek William O | Connector fitting for use in installing underground plastic pipes |
| US6098708A (en) * | 1997-04-02 | 2000-08-08 | Terra Ag Fuer Tiefbautechnik | Apparatus for pulling a pipe into an earth bore |
| RU2359164C1 (en) * | 2008-02-28 | 2009-06-20 | Федеральное государственное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) | Device for trenchless replacement of underground pipelines |
| CN202228786U (en) * | 2011-09-22 | 2012-05-23 | 淮南联合大学 | MPP (Modified Polypropylene) traction pipe |
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| CN103527848A (en) | 2014-01-22 |
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| ASS | Succession or assignment of patent right |
Owner name: ZHOU QIYAN Free format text: FORMER OWNER: ZHEJIANG FUHAO PIPE INDUSTRY CO., LTD. Effective date: 20140812 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 311826 SHAOXING, ZHEJIANG PROVINCE TO: 311817 SHAOXING, ZHEJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20140812 Address after: 311817 Zhejiang city of Shaoxing province Zhuji City Ying Dian Jie Zhen Chong Zhu Cun Applicant after: Zhou Qiyan Address before: 311826, Qingshan village, Ruan Town, Shaoxing City, Zhejiang, Zhuji Applicant before: Zhejiang Fu Hao Pipe Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Owner name: GANSU PIONEER PIPELINE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: ZHOU QIYAN Effective date: 20141104 |
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Inventor after: Huang Nanwei Inventor after: Chen Zhongwei Inventor after: Chen Zeke Inventor before: Huang Nanwei Inventor before: Huang Yingsong Inventor before: Lu Yinfei Inventor before: Qian Chaoyong |
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Free format text: CORRECT: INVENTOR; FROM: HUANG NANWEI HUANG YINGSONG LU YINFEI QIAN CHAOYONG TO: HUANG NANWEI CHEN ZHONGWEI CHEN ZEKE Free format text: CORRECT: ADDRESS; FROM: 311817 SHAOXING, ZHEJIANG PROVINCE TO: 730104 LANZHOU, GANSU PROVINCE |
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Effective date of registration: 20141104 Address after: Bing Jia Wan Cun, Yuzhong County, Gansu province 730104 Jin Ya Zhen Lanzhou City Applicant after: Zhejiang Fuhao Pipe Industry Co., Ltd. Address before: 311817 Zhejiang city of Shaoxing province Zhuji City Ying Dian Jie Zhen Chong Zhu Cun Applicant before: Zhou Qiyan |
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