CN203656362U - Dragging and construction drawing head for ultra large caliber PE pipe - Google Patents
Dragging and construction drawing head for ultra large caliber PE pipe Download PDFInfo
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- CN203656362U CN203656362U CN201320687475.3U CN201320687475U CN203656362U CN 203656362 U CN203656362 U CN 203656362U CN 201320687475 U CN201320687475 U CN 201320687475U CN 203656362 U CN203656362 U CN 203656362U
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Abstract
The utility model belongs to the technical field of non-excavation construction equipment, particularly relates to a dragging and construction drawing head for an ultra large caliber PE pipe, and solves the problems that the connection of the conventional drawing head is not solid and the like. The drawing head comprises a barrel-shaped drawing barrel body inserted at the end part of the PE pipe body, wherein the outer wall of the drawing barrel body leans against the inner wall of the PE pipe body; a fixture mechanism used for fixedly connecting the drawing barrel body and the PE pipe body is arranged on the drawing barrel body; a drawing end cover, which can close the end part of the PE pipe body, is fixed at the end part of the drawing barrel body; a drawing ring is arranged at the end part of the drawing end cover. Compared with the prior art, the dragging and construction drawing head is simple in structure, high in strength, solid in connection, not easy to separate from the pipe body when being drawn, not easy to crack, convenient to mount and good in blocking effect, can bear strong drawing force; the stress exerted on the pipe body is uniform; the pipe body is not easy to be scratched and not polluted interiorly.
Description
Technical field
The utility model belongs to non-excavating construction equipment technical field, especially relates to a kind of ultra-large caliber PE pipe hauling construction drawing head.
Background technique
No-excavation construction method is to introduce China the late nineteen eighties, when the no-dig directional driller of introducing at that time, draws pipe for some calibers smaller Φ 80, Φ 110, Φ 160.After being introduced into China, no-excavation construction method is adopted by the every profession and trade of China, for example, and telecommunications industry, water supply industry, power industry, draining, blowdown industry etc.Along with the continuity of reform and opening-up, the basic facilities that the Urbanization Construction of China is constantly accelerated urbanization put in place and are perfect, and it is more and more difficult laying a pipe network at Urban Underground, and only having non-excavating construction is unique selection.Along with urban population density is increasing, the non-excavation laying of super large caliber pipeline is more and more, and this just requires very high to the drawing head for tractive body.Existing drawing head adopts one " tapered cap " more, uses on " tapered cap " tubing and beats several holes, is fixed on " tapered cap " upper with snap bolt, with regard to hauling construction.Some simply makes a call to four holes on PE pipe, directly puts on just to buckle well with wire rope and draws, and " tapered cap " also need not.After dilatory like this, in pipeline, clean to such an extent that spend a lot of water to rinse well, cause water resource waste, increased the cost of pipe laying, in addition existing drawing head also exists: structural strength is low, easy slippage when dilatory, body easy-rupturing when dilatory, the problems such as body easily scratches, and body encapsulation is poor, body discontinuity.
The problem existing in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.For example, Chinese patent literature discloses a kind of traction tube [application number: 201020685354.1], comprise outer tube, blocking sheet, steel reinforced pipe and punching bolt, the external diameter of its middle external tube is identical with trailed MPP pipeline with wall thickness, the diameter of blocking sheet is identical with the internal diameter of outer tube respectively with the external diameter of reinforced pipe, blocking sheet is fixed together in the inner chamber of outer tube and with outer tube, reinforced pipe is inserted the outer end of blocking sheet, the external port of outer tube and reinforced pipe is neat and be respectively equipped with radial direction through hole apart from external port 1/3rd places and 2/3rds places mutually, the axis of 2 radial direction through hole is mutually orthogonal, punching bolt is 2, penetrate respectively 2 radial direction through hole, the two ends of each punching bolt are stretched out respectively the outer wall of outer tube and are used respectively fastening nuts.
Such scheme has solved the poor problem of existing traction tube plugging effect to a certain extent, but this scheme still exists: structural strength is low, connects firm not, easy slippage when dilatory, body easy-rupturing when dilatory, body easily scratches, body plugging effect is poor, the problem of body discontinuity.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of simple and reasonable, be connected firmly, and the ultra-large caliber PE pipe hauling construction drawing head that plugging effect is good.
For achieving the above object, the utility model has adopted following technical proposal: this ultra-large caliber PE pipe hauling construction drawing head, it is characterized in that, this drawing head comprises can be plugged in PE pipe body end and tubular traction cylindrical shell, the outer wall of described traction cylindrical shell and described PE pipe inboard wall of tube body lean, be provided with the fixed mechanism for traction cylindrical shell and PE pipe body are connected on cylindrical shell in traction, described pull cylinder end of body is fixed with can be by the traction end cap of described PE pipe body end-enclosed, and described traction end cap end is provided with draw ring.Adopt this structure can be by the fixation of PE pipe body, be difficult for departing from when traction, PE pipe body be difficult for producing fracture, and the PE pipe body inside after simultaneously drawing is without cleaning.
At above-mentioned ultra-large caliber PE pipe hauling construction, with in drawing head, described fixed mechanism comprises some fixed blocks that can radially be located on traction cylindrical shell and PE pipe body, and each fixed block is in a discrete distribution along helix.Obviously, each fixed block is helix and distributes and arrange, make fixed block radially be not axially all positioned on straight line, guarantee that when traction pulling force disperses, not easy-rupturing of PE pipe body when traction.
At above-mentioned ultra-large caliber PE pipe hauling construction, with in drawing head, the projection of each fixed block on traction cylindrical shell cross section is all positioned on same circumference and is uniformly distributed in a circumferential direction.When this structure makes to draw, PE pipe body is stressed evenly, draws more laborsaving.
Use in drawing head at above-mentioned ultra-large caliber PE pipe hauling construction, described fixed block comprises the cylindrical pin with external thread being radially located on traction cylindrical shell and PE pipe body, at the intrinsic welded nut that is welded on traction cylinder inboard wall of end cover of cylindrical pin with external thread, the tightening nut that is also connected in the end of cylindrical pin with external thread and is set up in parallel with welded nut.In this structure, welded nut makes cylindrical pin with external thread easier for installation, and tightening nut makes the fixation of cylindrical pin with external thread, the resistance when while draws in order to reduce, and the outer end of cylindrical pin with external thread flushes with the outer wall of PE pipe body.
At above-mentioned ultra-large caliber PE pipe hauling construction, with in drawing head, the thread section length of described cylindrical pin with external thread is 2-3 times of welded nut thickness; The quantity of described fixed block is 4-16.In this structure, the length of thread section has guaranteed the normal mounting of tightening nut, and as a kind of preferred version, the quantity of the fixed block is here 8.
At above-mentioned ultra-large caliber PE pipe hauling construction, with in drawing head, described traction end cap comprises and is fixed on pull cylinder end of body and tapered end cap skeleton, and described end cap skeleton is provided with and is conical shrouding.Guaranteed in distraction procedure, the mud of grouting can not enter in PE pipe body, has avoided pollution PE pipe body inside, does not need to rinse with a large amount of water yet.
Use in drawing head at above-mentioned ultra-large caliber PE pipe hauling construction, described end cap skeleton comprises some at the equally distributed body of rod of circumferencial direction, the described body of rod comprises the first joint being connected with the inwall of described traction cylindrical shell by welding manner, the first described joint is connected with the rake being obliquely installed, the end of each rake comes together in the medial axis elongation line of traction cylindrical shell and forms the second joint in rake end, and each the second joint is parallel to traction cylindrical shell medial axis and arranges and be all connected with draw ring.This structure makes the structural strength of end cap skeleton higher, and during for fear of traction, draw ring and the second joint depart from, and the draw ring is here connected with the second joint by welding manner.
At above-mentioned ultra-large caliber PE pipe hauling construction, with in drawing head, described shrouding is provided with protection cylindrical shell away from one end of draw ring, and described protection cylindrical shell one end is connected with described shrouding, and the other end is fitted on PE pipe body.To protect cylindrical shell when guaranteeing to draw indeformable, in protection cylindrical shell, to be also provided with supporting structure, when installation, traction cylindrical shell part is plugged in PE pipe body, protection cylinder body is positioned at the periphery of drawing cylindrical shell and be not plugged on the part of PE pipe body.
Use in drawing head at above-mentioned ultra-large caliber PE pipe hauling construction, described protection cylindrical shell comprises tubular straight part, the equal diameters of the diameter of described straight part and PE pipe body, described straight part upper end is provided with arc choke, and described arc choke is connected with described shrouding by welding manner.As preferably, the straight part here docks with PE pipe body, thereby guarantees normally carrying out of traction, make straight part can protect PE pipe body, avoid its surface tear, arc choke can play to the good hole of Directional Drilling the effect of full circle, reduces the mill resistance coefficient of hole wall and PE pipe body simultaneously; Straight part also can extend on PE pipe body outer side wall.
Use in drawing head at above-mentioned ultra-large caliber PE pipe hauling construction, in described traction cylindrical shell, be also provided with some struts that distribute along the different diameter of traction cylindrical shell respectively, the two ends distribution of each strut is connected with the inwall of traction cylindrical shell and each strut is uniformly distributed in a circumferential direction; The end of the first described joint contacts with strut.This structure has improved the structural strength of traction cylindrical shell, prevents from producing distortion in distraction procedure.
Compared with prior art, this ultra-large caliber PE pipe hauling construction is by the advantage of drawing head: simple in structure, intensity is high, is connected firmly, when traction, be difficult for departing from body, can bear compared with large traction, body is stressed evenly, is difficult for producing fracture, body is difficult for by scratch, plugging effect is good, is difficult for contaminated, easy for installation in body.
Accompanying drawing explanation
The structural representation that Fig. 1 provides for the utility model.
The sectional view that Fig. 2 provides for the utility model.
In figure, PE pipe body 1, traction cylindrical shell 2, traction end cap 3, shrouding 31, the body of rod 32, the first joint 321, rake 322, the second joint 323, draw ring 4, fixed block 5, cylindrical pin with external thread 51, welded nut 52, tightening nut 53, protection cylindrical shell 6, straight part 61, arc choke 62, strut 7.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1-2, this ultra-large caliber PE pipe hauling construction drawing head, comprise and can be plugged in PE pipe body 1 end and tubular traction cylindrical shell 2, outer wall and PE pipe body 1 inwall of traction cylindrical shell 2 lean, be provided with the fixed mechanism for traction cylindrical shell 2 and PE pipe body 1 are connected on cylindrical shell 2 in traction, traction cylindrical shell 2 ends are fixed with can be by the traction end cap 3 of PE pipe body 1 end-enclosed, and traction end cap 3 ends are provided with draw ring 4.Adopt this structure can be by 1 fixation of PE pipe body, be difficult for departing from when traction, PE pipe body 1 be difficult for producing fracture, and PE pipe body 1 inside after simultaneously drawing is without cleaning.
As a kind of preferred version, fixed mechanism in the present embodiment comprises some fixed blocks 5 that can radially be located on traction cylindrical shell 2 and PE pipe body 1, each fixed block 5 is in a discrete distribution along helix, make fixed block 5 radially be not axially all positioned on straight line, while guaranteeing traction, pulling force disperses, not easy-rupturing of PE pipe body 1 when traction.Further, the projection of each fixed block 5 on traction cylindrical shell 2 cross sections is all positioned on same circumference and is uniformly distributed in a circumferential direction.When this structure makes to draw, PE pipe body 1 is stressed evenly, draws more laborsaving.Fixed block 5 comprises the cylindrical pin with external thread 51 being radially located on traction cylindrical shell 2 and PE pipe body 1, at the intrinsic welded nut 52 that is welded on traction cylindrical shell 2 inwalls of the end of cylindrical pin with external thread 51 cover, the tightening nut 53 being set up in parallel with welded nut 52 is also connected in the end of cylindrical pin with external thread 51, in this structure, welded nut 52 has facilitated the installation of cylindrical pin with external thread 51, tightening nut 53 makes the fixation of cylindrical pin with external thread 51, resistance when while draws in order to reduce, the outer end of cylindrical pin with external thread 51 flushes with the outer wall of PE pipe body 1.The thread section length of cylindrical pin with external thread 51 is 2-3 times of welded nut 52 thickness; The quantity of fixed block 5 is 4-16.In this structure, the length of thread section has guaranteed the normal mounting of tightening nut 53, and as a kind of preferred version, the quantity of the fixed block 5 is here 8.
When installation, first the part of traction cylindrical shell 2 is plugged in PE pipe body 1, in welded nut 52, get out the through hole that can run through PE pipe body 1 sidewall, then from PE pipe body 1 outer side wall, through hole is carried out to reaming, then cylindrical pin with external thread 51 is inserted in through hole, cylindrical pin with external thread 51 ends are connected with tightening nut 53 with welded nut 52 respectively, thereby realize being fixedly linked of traction cylindrical shell 2 and PE pipe body 1, draw ring 4 is connected with haulage gear, thereby realizes the traction of PE pipe body.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as PE pipe body 1, traction cylindrical shell 2, traction end cap 3, shrouding 31, the body of rod 32, the first joint 321, rake 322, the second joint 323, draw ring 4, fixed block 5, cylindrical pin with external thread 51, welded nut 52, tightening nut 53, protection cylindrical shell 6, straight part 61, arc choke 62, strut 7 herein, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (10)
1. a ultra-large caliber PE pipe hauling construction drawing head, it is characterized in that, this drawing head comprises can be plugged in PE pipe body (1) end and tubular traction cylindrical shell (2), the outer wall of described traction cylindrical shell (2) and described PE pipe body (1) inwall lean, on traction cylindrical shell (2), be provided with the fixed mechanism being connected for drawing cylindrical shell (2) and PE pipe body (1), described traction cylindrical shell (2) end is fixed with can be by the traction end cap (3) of described PE pipe body (1) end-enclosed, described traction end cap (3) end is provided with draw ring (4).
2. according to ultra-large caliber PE pipe hauling construction drawing head claimed in claim 1, it is characterized in that, described fixed mechanism comprises some fixed blocks (5) that can radially be located on traction cylindrical shell (2) and PE pipe body (1), and each fixed block (5) is in a discrete distribution along helix.
3. according to ultra-large caliber PE pipe hauling construction drawing head claimed in claim 2, it is characterized in that, the projection of each fixed block (5) on traction cylindrical shell (2) cross section is all positioned on same circumference and is uniformly distributed in a circumferential direction.
4. according to the ultra-large caliber PE pipe hauling construction drawing head described in claim 2 or 3, it is characterized in that, described fixed block (5) comprises the cylindrical pin with external thread (51) being radially located on traction cylindrical shell (2) and PE pipe body (1), at the intrinsic welded nut (52) that is welded on traction cylindrical shell (2) inwall of end cover of cylindrical pin with external thread (51), the tightening nut (53) that is also connected in the end of cylindrical pin with external thread (51) and is set up in parallel with welded nut (52).
5. according to ultra-large caliber PE pipe hauling construction drawing head claimed in claim 4, it is characterized in that, the thread section length of described cylindrical pin with external thread (51) is 2-3 times of welded nut (52) thickness; The quantity of described fixed block (5) is 4-16.
6. according to the ultra-large caliber PE pipe hauling construction drawing head described in claim 1 or 2 or 3, it is characterized in that, described traction end cap (3) comprises and is fixed on traction cylindrical shell (2) end and tapered end cap skeleton, and described end cap skeleton is provided with and is conical shrouding (31).
7. according to ultra-large caliber PE pipe hauling construction drawing head claimed in claim 6, it is characterized in that, described end cap skeleton comprises some at the equally distributed body of rod of circumferencial direction (32), the described body of rod (32) comprises the first joint (321) being connected with the inwall of described traction cylindrical shell (2) by welding manner, described the first joint (321) is connected with the rake (322) being obliquely installed, the end of each rake (322) comes together in the medial axis elongation line of traction cylindrical shell (2) and forms the second joint (323) in rake (322) end, each the second joint (323) is parallel to traction cylindrical shell (2) medial axis and arranges and be all connected with draw ring (4).
8. according to ultra-large caliber PE pipe hauling construction drawing head claimed in claim 7, it is characterized in that, described shrouding (31) is provided with protection cylindrical shell (6) away from one end of draw ring (4), described protection cylindrical shell (6) one end is connected with described shrouding (31), and the other end is fitted on PE pipe body (1).
9. according to ultra-large caliber PE pipe hauling construction drawing head claimed in claim 8, it is characterized in that, described protection cylindrical shell (6) comprises tubular straight part (61), the diameter of described straight part (61) and the equal diameters of PE pipe body (1), described straight part (61) upper end is provided with arc choke (62), and described arc choke (62) is connected with described shrouding (31) by welding manner.
10. according to ultra-large caliber PE pipe hauling construction drawing head claimed in claim 7, it is characterized in that, in described traction cylindrical shell (2), be also provided with some struts (7) that distribute along the different diameter of traction cylindrical shell (2) respectively, the two ends distribution of each strut (7) is connected with the inwall of traction cylindrical shell (2) and each strut (7) is uniformly distributed in a circumferential direction; The end of described the first joint (321) contacts with strut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687475.3U CN203656362U (en) | 2013-11-01 | 2013-11-01 | Dragging and construction drawing head for ultra large caliber PE pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687475.3U CN203656362U (en) | 2013-11-01 | 2013-11-01 | Dragging and construction drawing head for ultra large caliber PE pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656362U true CN203656362U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320687475.3U Withdrawn - After Issue CN203656362U (en) | 2013-11-01 | 2013-11-01 | Dragging and construction drawing head for ultra large caliber PE pipe |
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| CN (1) | CN203656362U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527848A (en) * | 2013-11-01 | 2014-01-22 | 浙江富浩管业有限公司 | Drawing head for dragging construction of ultra-large-diameter poly ethylene (PE) pipe |
| CN105987224A (en) * | 2015-02-13 | 2016-10-05 | 中国建筑第七工程局有限公司 | Pipeline back drag device |
| CN110274088A (en) * | 2019-05-31 | 2019-09-24 | 武汉市武昌市政建设(集团)有限公司 | A kind of road construction non-excavation type inspection shaft pipeline construction method |
-
2013
- 2013-11-01 CN CN201320687475.3U patent/CN203656362U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527848A (en) * | 2013-11-01 | 2014-01-22 | 浙江富浩管业有限公司 | Drawing head for dragging construction of ultra-large-diameter poly ethylene (PE) pipe |
| CN103527848B (en) * | 2013-11-01 | 2018-01-16 | 甘肃先锋管道制造有限公司 | Ultra-large caliber PE pipe hauling construction drawing head |
| CN105987224A (en) * | 2015-02-13 | 2016-10-05 | 中国建筑第七工程局有限公司 | Pipeline back drag device |
| CN110274088A (en) * | 2019-05-31 | 2019-09-24 | 武汉市武昌市政建设(集团)有限公司 | A kind of road construction non-excavation type inspection shaft pipeline construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GANSU PIONEER PIPELINE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: ZHEJIANG FUHAO PIPE INDUSTRY CO., LTD. Effective date: 20141105 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
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 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 311826 SHAOXING, ZHEJIANG PROVINCE TO: 730104 LANZHOU, GANSU PROVINCE Free format text: CORRECT: INVENTOR; FROM: HUANG NANWEI HUANG YINGSONG LU YINFEI QIAN CHAOYONG TO: HUANG NANWEI CHEN ZHONGWEI CHEN ZEKE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141105 Address after: Bing Jia Wan Cun, Yuzhong County, Gansu province 730104 Jin Ya Zhen Lanzhou City Patentee after: Zhejiang Fuhao Pipe Industry Co., Ltd. Address before: 311826, Qingshan village, Ruan Town, Shaoxing City, Zhejiang, Zhuji Patentee before: Zhejiang Fu Hao Pipe Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20180116 |