CN204647717U - A kind of draw-bar - Google Patents
A kind of draw-bar Download PDFInfo
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- CN204647717U CN204647717U CN201520161208.1U CN201520161208U CN204647717U CN 204647717 U CN204647717 U CN 204647717U CN 201520161208 U CN201520161208 U CN 201520161208U CN 204647717 U CN204647717 U CN 204647717U
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Abstract
The utility model relates to a kind of draw-bar, comprise the draw-bar body of rod and the drawing head being fixed on draw-bar body of rod one end, described drawing head has taper connection section, drawing head and draw-bar body of rod joint establish inner screw sheath and external thread sleeve to be threaded connection, and are fixedly connected with between inner screw sheath with drawing head, between external thread sleeve with the draw-bar body of rod by link.Taper connection section is tightened up to draw-bar body of rod side gradually from drawing head side, and drawing head outermost end establishes taper to introduce section, and taper connection section and taper are introduced between section and established cylindrical transition section.The draw-bar body of rod is made up of carbon fiber reinforce plastic material, and drawing head is made up of stainless steel material.Compared with prior art, the beneficial effects of the utility model are: structure is simple, and join strength is high, adopt during carbon fiber reinforce plastic material and have very high tensile strength and toughness, for drawing UHMW-PE pipe in pipeline rehabilitation construction, below DN100 pipeline rehabilitation can be realized.
Description
Technical field
The utility model relates to a kind of draw-bar, particularly relates to high strength draw-bar during a kind of pipe-repairing.
Background technique
Various pipeline, after running for many years, because burn into operation management such as to be not good at the reason, inevitably to produce various damage and leakage, brings serious economic loss, but more renews pipeline completely, and not only engineering work load is huge, and cost is large, the engineering phase is long.How economical and efficient, quickly recovery pipe safety run and receive very big concern both domestic and external, and therefore the research tool of pipe rehabilitation technology is of great significance.
The method of pipeline rehabilitation has a variety of, adopt the method for interspersed repairing used pipeline to obtain because of advantages such as construction are fast, digging-free, rehabilitation expense are low in recent years to apply, it is inserted by traction by the new pipe of suitable dimension in the old pipeline that needs to repair, utilizes the shock resistance of original old pipeline, corrosion-resistant, the antiwear characteristic of anti-pressure ability and new pipeline form the multiple tube with overall characteristic.
Application number is that the Chinese patent of 03126240.6 (applying date is on July 4th, 2003) discloses one " crosslinked high density polyethylene (HDPE) and and the construction process of interspersed repairing used pipeline ", wherein detailed description is done to the construction process of pipeline rehabilitation, the description of " the crosslinked HDPE pipe after being shaped by undergauge with tractor is drawn in old pipeline to be repaired " is had in its " claims ", but explicitly point out simultaneously " be suitable for caliber be DN100 ~ DN1200, once execute lining length at about 1000 meters." in fact; in the industry; generally adopt at present pipeline robot traction iron wire to pass; again by iron wire haulage cable; wire rope draws the method for polyethylene pipe again; but cannot pass through due to small-caliber pipeline robot, and wire rope tensile strength is limited, so below DN100 manages cannot adopt Insertion method reparation all the time.
Summary of the invention
The utility model provides a kind of draw-bar, and structure is simple, and join strength is high, adopts during carbon fiber reinforce plastic material and has very high tensile strength and toughness, for drawing UHMW-PE pipe in pipeline rehabilitation construction, can realize below DN100 pipeline rehabilitation.
In order to achieve the above object, the utility model realizes by the following technical solutions:
A kind of draw-bar, comprise the draw-bar body of rod and the drawing head being fixed on draw-bar body of rod one end, described drawing head has taper connection section, drawing head and draw-bar body of rod joint establish inner screw sheath and external thread sleeve to be threaded connection, and are fixedly connected with between inner screw sheath with drawing head, between external thread sleeve with the draw-bar body of rod by link.
Described taper connection section is tightened up to draw-bar body of rod side gradually from drawing head side, and cone angle is 15 ° ~ 60 °; Drawing head outermost end establishes taper to introduce section, and cone angle is 5 ° ~ 15 °, and taper connection section and taper are introduced between section and established cylindrical transition section.
The described draw-bar body of rod is made up of carbon fiber reinforce plastic material, its tensile strength > 2.0GPa, elastic modulus G reatT.GreaT.GT 200GPa; Drawing head is made up of stainless steel material.
Compared with prior art, the beneficial effects of the utility model are:
Structure is simple, and join strength is high, adopts during carbon fiber reinforce plastic material and has very high tensile strength and toughness, for drawing UHMW-PE pipe in pipeline rehabilitation construction, can realize below DN100 pipeline rehabilitation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1. the section 3b. cylindrical transition section 3c. taper connection section 4. elastic cylindrical pin 5. lock screw 6. inner screw sheath 7. external thread sleeve 8. strengthening sleeve 9. draw-bar body of rod is introduced in old pipeline 2.UHMW-PE pipe 3. drawing head 3a. taper
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Seeing Fig. 1, is structural representation of the present utility model.A kind of draw-bar of the utility model, comprise the draw-bar body of rod 9 and the drawing head 3 being fixed on the draw-bar body of rod 9 one end, described drawing head 3 has taper connection section 3c, drawing head 3 and the draw-bar body of rod 9 joint establish inner screw sheath 6 and external thread sleeve 7 to be threaded connection, and are fixedly connected with between inner screw sheath 6 with drawing head 3, between external thread sleeve 7 with the draw-bar body of rod 9 by link.
Described taper connection section 3c tightens up to the draw-bar body of rod 9 side gradually from drawing head 3 side, and cone angle is 15 ° ~ 60 °; Drawing head 3 outermost end establishes taper to introduce section 3a, and cone angle is 5 ° ~ 15 °, and taper connection section 3c and taper are introduced between section 3a and established cylindrical transition section 3b.
The described draw-bar body of rod 9 is made up of carbon fiber reinforce plastic material, its tensile strength > 2.0GPa, elastic modulus G reatT.GreaT.GT 200GPa; Drawing head 3 is made up of stainless steel material.
Ultra-high molecular weight polyethylene (UHMW-PE) material, the memory function of the long molecular chain of polyethylene to embryonal structure can be relied on to reconfigure, therefore after UHMW-PE pipe 2 undergauge, diameter can arrive reset condition gradually naturally, UHMW-PE pipe 2 has the performances such as corrosion-resistant, wear-resisting, friction factor is little, succeeding in developing of it is generally considered one of 20th century ten large scientific and technological achievement, has wide market prospects in engineer applied.Automatically the characteristic of original physical shape can be recovered after utilizing superhigh molecular weight polyethylene pipe 2 (UHMW-PE pipe) to be out of shape, with multistage size reducing machine, slightly larger than the UHMW-PE pipe 2 of old internal diameter of the pipeline, undergauge is carried out to external diameter, after undergauge, utilize draw-bar to draw in old pipeline 1 by UHMW-PE pipe 2 fast under certain tractive force and speed; After 24 hours, UHMW-PE pipe 2 returns to original diameter, now UHMW-PE pipe 2 outer wall interference is attached at old pipeline 1 inwall, formed and there is wear-resisting and composite pipe that is corrosion-resistant high strength simultaneously, thus old pipeline 1 is repaired, interference fit simultaneously, serves strengthening rigidity to old pipeline 1, improves the effect of bearing capacity.
A kind of draw-bar body of rod of the utility model is made up of carbon fiber reinforce plastic material, its Main Ingredients and Appearance is carbon fiber, glass fibre, superelevation fiber etc., we are currently used is the finished product that specialized factory produces, its tensile strength > 2.0GPa, elastic modulus G reatT.GreaT.GT 200GPa.The draw-bar that this carbon fiber reinforce plastic material is made has enough intensity when sending into pipeline and traction UHMW-PE pipe 2.Drawing head 3 adopts taper connection structure, can reduce the resistance of draw-bar in old pipeline 1.
Use the utility model a kind of draw-bar carry out pipeline rehabilitation detailed process as follows:
Dig an operation hole at oriented old pipeline 1 two ends respectively, old pipeline 1 is cleaned; Multistage size reducing machine is adopted to carry out undergauge slightly larger than the UHMW-PE pipe 2 of old pipeline 1 internal diameter external diameter; In operation hole, side, tractor is installed, the draw-bar body of rod 9 is pushed, until the draw-bar body of rod 9 stretches out from the other end in old pipeline 1 one end of having installed tractor;
UHMW-PE pipe 2 pipe end after undergauge is introduced section 3a side from drawing head taper and is introduced and be sleeved on drawing head 3, be spliced into superimposed for UHMW-PE pipe 2 pipe end the cone shape adapted with drawing head taper connection section 3c part by the splicing seams of longitudinal direction, then fix at radial direction lock screw 5.After fixing by screw thread to inner screw sheath 6 and external thread sleeve 7, being fixedly connected with of inner screw sheath 6 and drawing head 3 is realized again by radial elastic cylindrical pin 4, fix by adopting radial lock screw 5 between external thread sleeve 7 and the draw-bar body of rod 9, namely the connection between drawing head 3 and the draw-bar body of rod 9 is achieved, for gaining in strength further, strengthening sleeve 8 can be set up between external thread sleeve 7 and the draw-bar body of rod 9.
Pull the afterbody of draw-bar with tractor, UHMW-PE pipe 2 is drawn in old pipeline 1 under the traction of drawing head 3, until all covered by old pipeline 1 inwall; Leave standstill more than 24 hours, treat UHMW-PE pipe 2 diameter clear-cutting forestland and fit tightly with old pipeline 1 inwall, formed and there is composite pipe that is wear-resisting, anticorrosion, high-strength characteristic.
Claims (3)
1. a draw-bar, it is characterized in that, comprise the draw-bar body of rod and the drawing head being fixed on draw-bar body of rod one end, described drawing head has taper connection section, drawing head and draw-bar body of rod joint establish inner screw sheath and external thread sleeve to be threaded connection, and are fixedly connected with between inner screw sheath with drawing head, between external thread sleeve with the draw-bar body of rod by link.
2. a kind of draw-bar according to claim 1, is characterized in that, described taper connection section is tightened up to draw-bar body of rod side gradually from drawing head side, and cone angle is 15 ° ~ 60 °; Drawing head outermost end establishes taper to introduce section, and cone angle is 5 ° ~ 15 °, and taper connection section and taper are introduced between section and established cylindrical transition section.
3. a kind of draw-bar according to claim 1, is characterized in that, the described draw-bar body of rod is made up of carbon fiber reinforce plastic material, its tensile strength > 2.0GPa, elastic modulus G reatT.GreaT.GT 200GPa; Drawing head is made up of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161208.1U CN204647717U (en) | 2015-03-20 | 2015-03-20 | A kind of draw-bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520161208.1U CN204647717U (en) | 2015-03-20 | 2015-03-20 | A kind of draw-bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647717U true CN204647717U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520161208.1U Active CN204647717U (en) | 2015-03-20 | 2015-03-20 | A kind of draw-bar |
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| Country | Link |
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| CN (1) | CN204647717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038351A (en) * | 2018-07-05 | 2018-12-18 | 国网天津市电力公司 | A kind of cable duct bank prosthetic device |
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2015
- 2015-03-20 CN CN201520161208.1U patent/CN204647717U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038351A (en) * | 2018-07-05 | 2018-12-18 | 国网天津市电力公司 | A kind of cable duct bank prosthetic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191226 Address after: Bajiabao village, Yahe office, Xiuyan Manchu Autonomous County, Anshan City, Liaoning Province Patentee after: Liaoning Hengsheng Environmental Engineering Co., Ltd Address before: 114003 Xiuyan Town, Xiuyan Manchu Autonomous County, Liaoning City, Anshan Province Patentee before: Liaoning Sanhe Environmental Engineering Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201230 Address after: 114300 Group 8, Babao village, Yahe Township, Xiuyan Manchu Autonomous County, Anshan City, Liaoning Province Patentee after: Liaoning Xuyuan Environmental Engineering Co.,Ltd. Address before: 114000 bajiabao village, Yahe office, Xiuyan Manchu Autonomous County, Anshan City, Liaoning Province Patentee before: Liaoning Hengsheng Environmental Engineering Co.,Ltd. |