CN212428631U - Flexible connection pipe dragging device of horizontal directional drill - Google Patents
Flexible connection pipe dragging device of horizontal directional drill Download PDFInfo
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- CN212428631U CN212428631U CN202021226420.9U CN202021226420U CN212428631U CN 212428631 U CN212428631 U CN 212428631U CN 202021226420 U CN202021226420 U CN 202021226420U CN 212428631 U CN212428631 U CN 212428631U
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Abstract
The utility model discloses a level directional drilling flexible coupling pipe dragging device, the device include the enlarger that one end and drilling rod are connected, the transfer case of being connected with the other end of enlarger, a flexible coupling nozzle stub for realizing following the direction orbit and returning the dragging, the tube drawing head, return and drag the pipeline, the flexible coupling nozzle stub is located between transfer case and the tube drawing head, through first articulate between transfer case and the flexible coupling nozzle stub, the flexible coupling nozzle stub passes through the second connector with the one end of tube drawing head and is connected, the other end of tube drawing head and return and drag the pipe connection, be connected through the third connector between enlarger and the transfer case. The utility model discloses a device can prevent effectively that the underground from passing through the pipeline and can not bend smoothly at the section of making one's slope and advance according to the arc orbit, or in the dead and unmovable pipe condition of dragging of different stratum interface pipeline hole "step" department card.
Description
Technical Field
The utility model belongs to horizontal directional drilling field, concretely relates to horizontal directional drilling flexible coupling towing pipe device.
Background
In the engineering is crossed to the directional boring of level, need the rig to lead to, the reaming, return and drag technology operation such as, wherein return and drag and involve the pipe dragging device, traditional pipe dragging device is including parts such as reamer, U-shaped connector, transfer case, stay tube head, its problem lies in: 1. when the horizontal pipeline is dragged back to the deflecting section (the arc section with a certain curvature radius), the pipeline can horizontally move forward by inertia due to the self rigidity, and the pipeline is bent to enter the deflecting section with certain engineering difficulty. 2. When different stratums exist in the horizontal directional drilling crossing section, the hole is not concentric at the interface of the different stratums to form a step phenomenon in the hole expanding process, and particularly the step phenomenon caused by the hole expanding process of large hole diameter is more obvious. The pipeline is dragged back to the 'step', so that the risk of being stuck and pulling the pipeline still is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to present pipe device that drags for directional brill flexible coupling of level drags pipe device for solve the pipeline that drags the pipeline in-process appearance back and get into the difficult and dead problem of pipeline card of oblique section of making.
The utility model discloses a level directional brill flexible coupling pipe dragging device, it includes the enlarger that one end and drilling rod are connected, the transfer case of being connected with the other end of enlarger, a flexible coupling nozzle stub for realizing following the direction orbit and returning the dragging, the tube drawing head, return and drag the pipeline, the flexible coupling nozzle stub is located between transfer case and the tube drawing head, through first articulate between transfer case and the flexible coupling nozzle stub, the flexible coupling nozzle stub is passed through the second connector with the one end of tube drawing head and is connected, the other end of tube drawing head and return and drag the pipe connection (for example welded connection), be connected through the third connector between enlarger and the transfer case.
Furthermore, the diameter of the flexible short connecting pipe is the same as that of the back-dragging pipe, the length of the flexible short connecting pipe is 2-3 meters, the flexible short connecting pipe is a steel pipe, and the flexible short connecting pipe is generally directly made of the back-dragging pipe, such as L485M.
Further, the first connector, the second connector and the third connector are each independently a U-shaped connector, the U-shaped connector is usually made of a metal material such as steel, and includes a U-shaped ring, two ends of the U-shaped ring have corresponding holes, a bolt is used to fasten the U-shaped ring through the holes at the two ends, the U-shaped ring can be formed by steel with a diameter of 15mm, the height of the U-shaped ring is 105mm for example, and the distance between the two ends of the U-shaped ring is 33mm for example.
Furthermore, circular end enclosures are adopted at two ends of the soft connecting short pipe, the circular end enclosures at the two ends are used for moving forwards in the hole along the hole and reducing the friction resistance, and the soft connecting short pipe is used for enabling the back-dragging pipeline to move forwards according to a guide track in the back-dragging process, so that the deviation is prevented and the pipeline hole step-shaped part is prevented from being clamped at the interface of different strata.
The connection of the first connector, the flexible short connecting pipe and the second connector increases the flexibility of the pipe dragging device when entering the deflecting section, so that the crossing pipeline can be smoothly bent to move forward according to an upward inclined line track or an arc line track.
The utility model discloses a use method of level directional drilling flexible coupling towing pipe device:
with the drilling rod with the utility model discloses a pipe dragging device's enlarger is connected, and the pipe head returns the new pipe welding that drags with the needs laid, then the rig begins to return and drags the drilling rod, when getting into the section of deflecting, under the drive of first connector, flexible coupling nozzle stub and second connector for the pipe head gets into smoothly with the back pipeline of dragging and makes the section of deflecting, and the drilling rod drags pipe dragging device and new pipe to preset position in proper order.
The utility model has the advantages that:
the utility model discloses a level directional brill flexible coupling drags a tub device can prevent effectively that the underground from crossing the pipeline and can not bend smoothly at the section of making one's inclination and advance according to the arc orbit, or in the dead and dragging the motionless pipe condition of different stratum interface pipeline hole "step" department card, improvement efficiency of construction.
Drawings
Fig. 1 is a schematic structural view of the flexible connection pipe dragging device of the horizontal directional drill of the present invention.
Reference numerals:
the drilling rod comprises a drilling rod 1, a reamer 2, a transfer case 3, a flexible connecting short pipe 4, a first connector 5, a pipe drawing head 6, a second connector 7, a back dragging pipeline 8 and a third connector 9.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, in one embodiment, the utility model discloses a horizontal directional drilling flexible coupling pipe dragging device, it includes reamer 2 that one end is connected with drilling rod 1, transfer case 3 of being connected with the other end of reamer 2, be used for realizing following flexible coupling nozzle 4 that the direction orbit dragged back, draw tube head 6, drag pipeline 8, flexible coupling nozzle 4 is located between transfer case 3 and the draw tube head 6, be connected through first connector 5 between transfer case 3 and the flexible coupling nozzle 4, flexible coupling nozzle 4 is connected through second connector 7 with the one end of draw tube head 6, the other end of draw tube head 6 is connected with dragging pipeline 8 (for example welded connection), be connected through third connector 9 between reamer 2 and the transfer case 3.
The diameter of the flexible short connecting pipe 4 is the same as that of the back-dragging pipe 8, the length of the flexible short connecting pipe 4 is 2-3 m, the flexible short connecting pipe 4 is made of steel pipe materials, and the flexible short connecting pipe 4 is generally directly made of the back-dragging pipe materials, such as L485M.
The first connector 5, the second connector 7 and the third connector 9 are respectively U-shaped connectors. The U-shaped connecting head is made of steel and comprises a U-shaped ring, two ends of the U-shaped ring are provided with corresponding holes, a bolt is used for buckling the U-shaped ring through the holes at the two ends, the U-shaped ring is made of the steel with the diameter of 15mm, the height of the U-shaped ring is 105mm, and the distance between the two ends of the U-shaped ring is 33 mm. Connecting pieces are respectively arranged at one end of two parts connected by the U-shaped connector, and corresponding holes are arranged on the connecting pieces for inserting and fixing the U-shaped ring or the bolt.
The two ends of the soft connecting short pipe 4 are circular end sockets which are used for moving forward in the hole along the hole and reducing the friction resistance, and the soft connecting short pipe is used for moving forward the back dragging pipeline according to the guiding track in the back dragging process so as to prevent deviation and blocking at the step of the pipeline hole at the interface of different strata.
The connection of the first connector 5, the flexible short connecting pipe 4 and the second connector 7 increases the flexibility of the pipe dragging device when entering the deflecting section, so that the crossing pipeline can be smoothly bent and advanced according to the guiding track of the deflecting section.
The utility model discloses a use method of level directional drilling flexible coupling towing pipe device:
with drilling rod 1 with the utility model discloses a reamer 2 of pipe dragging device is connected, and the pipe drawing head 6 with by laid back drag pipeline 8 welding, then the rig begins to return and drags drilling rod 1, when getting into the section of deflecting, under the drive of first connector 5, flexible coupling nozzle stub 4 and second connector 7 for back and drag the smooth entering of pipeline and make the section of deflecting, the drilling rod drags the pipe dragging device and back and drag the pipeline in proper order to preset position.
The above description is of the preferred embodiments of the present invention, however, it should be understood that the above description is exemplary and not intended to limit the present invention in any way. Numerous changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the appended claims.
Claims (4)
1. The utility model provides a horizontal directional drilling flexible coupling pipe dragging device which characterized in that, it includes the enlarger that one end is connected with the drilling rod, the transfer case of being connected with the other end of enlarger, be used for realizing following the flexible coupling nozzle stub that the direction orbit dragged back, the tube drawing head, back and drag the pipeline, flexible coupling nozzle stub is located between transfer case and the tube drawing head, be connected through first connector between transfer case and the flexible coupling nozzle stub, flexible coupling nozzle stub is connected through the second connector with the one end of tube drawing head, the other end of tube drawing head is connected with back and drags the pipeline, be connected through the third connector between enlarger and the transfer case.
2. The horizontally-oriented drill flexible connection pipe dragging device according to claim 1, wherein the diameter of the flexible connection short pipe is the same as that of the back dragging pipeline, the length of the flexible connection short pipe is 2-3 m, and the flexible connection short pipe is a steel pipe.
3. The horizontally-oriented drill flexible coupling tug pipe device of claim 1 or 2, wherein the first connector, the second connector and the third connector are each independently a U-shaped connector.
4. The horizontally-oriented drill flexible connection towing pipe device as claimed in claim 1 or 2, wherein two ends of the flexible connection short pipe are circular end sockets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021226420.9U CN212428631U (en) | 2020-06-29 | 2020-06-29 | Flexible connection pipe dragging device of horizontal directional drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021226420.9U CN212428631U (en) | 2020-06-29 | 2020-06-29 | Flexible connection pipe dragging device of horizontal directional drill |
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| Publication Number | Publication Date |
|---|---|
| CN212428631U true CN212428631U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021226420.9U Active CN212428631U (en) | 2020-06-29 | 2020-06-29 | Flexible connection pipe dragging device of horizontal directional drill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901079A (en) * | 2021-02-02 | 2021-06-04 | 陕西中科非开挖技术股份有限公司 | Pipeline returns to dragging is connected and is used protection device |
| CN113482530A (en) * | 2021-08-20 | 2021-10-08 | 北京城建亚泰建设集团有限公司 | Site-limited long-distance large-aperture horizontal directional drilling pipeline back-dragging construction process |
-
2020
- 2020-06-29 CN CN202021226420.9U patent/CN212428631U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901079A (en) * | 2021-02-02 | 2021-06-04 | 陕西中科非开挖技术股份有限公司 | Pipeline returns to dragging is connected and is used protection device |
| CN113482530A (en) * | 2021-08-20 | 2021-10-08 | 北京城建亚泰建设集团有限公司 | Site-limited long-distance large-aperture horizontal directional drilling pipeline back-dragging construction process |
| CN113482530B (en) * | 2021-08-20 | 2022-10-14 | 北京城建亚泰建设集团有限公司 | Site-limited long-distance large-aperture horizontal directional drilling pipeline back-dragging construction process |
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