CN205936422U - Double -walled drilling rod - Google Patents
Double -walled drilling rod Download PDFInfo
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- CN205936422U CN205936422U CN201620895056.2U CN201620895056U CN205936422U CN 205936422 U CN205936422 U CN 205936422U CN 201620895056 U CN201620895056 U CN 201620895056U CN 205936422 U CN205936422 U CN 205936422U
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Abstract
The utility model discloses a double -walled drilling rod, its technical scheme main points are that outside drill pipe includes the unanimous outer pole of external diameter to it can dismantle sealing connection's outer pole female joint and outer pole male joint to reach outer pole both ends, set up inner drill stem in the outside drill pipe, it includes interior pole to and public seal cover of interior two end screw thread connection's on the pole interior pole and the female seal cover of interior pole, its both ends also have the stairstepping ka tai with above -mentioned the two grafting, and it has the seal groove to block the bench, has the sealing washer in the seal groove, sets up the bayonet joint on the public seal cover of interior pole, and the female seal cover of interior pole sets up the spliced eye, sets up the seal groove on the bayonet joint outer wall, and the seal groove sets up the sealing washer, it is used for radial fixed spline to set up on the female seal cover of public seal cover of interior pole and interior pole, form annular fill water cavity between inner drill stem and outside drill pipe, be equipped with the laser channel chamber in the inner drill stem. The utility model discloses big moment of torsion be can transmit, dedicated laser channel and rivers passageway are provided with, it is sealed mutually between two passageways, have dismantlement, the quick advantage of simple to operate.
Description
Technical field
This utility model is related to a kind of address exploring equipment technical field, and in particular, it is related to a kind of double-wall drill pipe.
Background technology
Horizontal directional drilling machine is under conditions of not excavating earth surface face, lays multiple subsurface utilities (pipeline, cable
Deng) a kind of construction machinery, it be widely used in the pipe installations such as water supply, electric power, telecommunication, natural gas, coal gas, oil construction
In, it is applied to the ground such as sandy soil, clay, cobble condition, and China all can construct in most of non-hard rock area.Operating ambient temperature be-
15℃~+45℃.Horizontal Directional Drilling is to combine the Technology of Directional Drilling of petroleum industry and traditional pipeline construction method
A construction technique together, it has, and speed of application is fast, construction precision is high, low cost and other advantages, is widely used in supplying
In the pipe installation construction work such as water, coal gas, electric power, telecommunication, natural gas, oil.Horizontal directional drilling equipment, between the more than ten years
Also obtain and develop rapidly, become emerging industry in developed country.At present its development trend just towards maximize and miniaturization,
Stacking is connected self-lubricate, protection against electric shock system etc. with extraction, drilling rod automatically to adapt to hard rock operation, self-contained type's anchor system, drilling rod
The feature growth such as automated job function, the monitoring of ultra-deep guiding, applied range.This kind of equipment applies in general to caliber φ
The steel pipe of 300 ~ φ 1200mm, PE pipe, maximum pipe laying length, up to 1500m, is adapted to weak soil to the multiple edaphic condition of hard rock, should
With having a extensive future.
In no-dig technique orientation jacking construction, in order to control bury a little with the offset accuracy of unearthed point, traditional construction party
Method is by carrying guiding probe in drill bit, launching infrared ray by probe, be transmitted to the guide instrument accepter on ground, thus coming
The trend of subterranean drill bit is detected.This traditional method can not meet in the Sewage Pipe-Jacking Construction of underground, to control accuracy 5 centimeters with
Interior engineering.
Based in above construction, to the requirement in precision techniques, detection meanss are changed to send out using laser at drill power head end
Emitter, launches laser, and drill bit one end is provided with laser pick-off target, and laser needs the endoporus in drilling rod to pass through.
This is accomplished by a kind of drilling rod, can transmitting large torque while, both can guarantee that drilling rod had water to pass through, before being transmitted to
It is ensured that the outer soil property of drill bit is loose under water impact at drill with ferrule head, reduce soil property hardness, also lower the temperature for drill bit simultaneously, it is to avoid bore
Laser pick-off instrument in head is destroyed.Additionally, drilling rod also should design specialized passage also by laser, simultaneously in order to ensure to swash
Light straight-line pass, can not have the cut-off of other materials such as water, the passing through of blocking laser.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of double-wall drill pipe, and it can pass
Pass high pulling torque, be provided with special laser channeling and water stream channel, two interchannels are sealed to each other, have dismounting, installation side simultaneously
Just quick advantage.
For achieving the above object, this utility model provides following technical scheme：A kind of double-wall drill pipe, including outer drilling rod,
Described outer drilling rod includes the consistent outer bar of external diameter, and outer bar female joint and the outer bar public access being connected to the two ends of described outer bar
Head, described outer bar female joint and outer bar male joint removable seal connect；It is provided with interior drilling rod, described interior brill in described outer drilling rod
Bar includes interior bar, and is threaded in the male sealing shroud of interior bar and interior bar mother's sealing shroud at the two ends of described interior bar, described interior bar
Two ends be additionally provided with for sealing shroud male with described interior bar and described interior bar mother sealing shroud grafting stairstepping chuck, described rank
Some seal grooves are provided with trapezoidal chuck, in described seal groove, are provided with sealing ring, described interior bar public affairs sealing shroud is provided with
Connection-peg, described interior bar mother's sealing shroud is provided with the spliced eye with described connection-peg grafting, described connection-peg outer wall is arranged
There are some seal grooves, in described seal groove, be provided with sealing ring；Set on the male sealing shroud of described interior bar and described interior bar mother's sealing shroud
It is equipped with radially fixed for the described interior drilling rod spline to described outer drilling rod center；Form ring between described interior drilling rod and described outer drilling rod
Shape is used for the water flowing chamber of water flowing, is provided with poroid laser channeling chamber in interior drilling rod.
By adopting technique scheme, the outer bar two ends of outer drilling rod are respectively welded outer bar male joint and outer bar mother connects
Head, outer bar male joint can be connected with outer bar female joint removable seal.Screw thread and interior bar are passed through in the two ends of the interior bar of interior drilling rod
Male sealing shroud and interior bar mother's sealing shroud connect, simultaneously by seal groove and the sealing ring of setting in the chuck of notch cuttype and chuck
Complete the sealing between the male sealing shroud of interior bar and interior bar mother's sealing shroud and interior bar.The male sealing shroud of interior bar and interior bar mother's sealing shroud pass through to insert
Connect in succession, simultaneously setting seal groove and sealing ring on plug, in order to complete to seal.The male sealing shroud of interior bar and interior bar mother are close simultaneously
Spline is provided with big envelope, by spline defined position by radially fixed for described interior drilling rod to outer drilling rod center.Thus including
Form, between drilling rod and outer drilling rod, the water flowing chamber that ring-type is used for water flowing, be provided with interior drilling rod for poroid laser channeling chamber.Right
When multiple double-wall drill pipes are installed, interior drilling rod completes to install by grafting, completes to seal by sealing ring.Pass through simultaneously
Outer drilling rod outer bar female joint and outer bar male joint removable seal connect, and therefore form connection and the water flowing chamber sealing and laser lead to
Road chamber, disclosure satisfy that the needs in production.
This utility model is further arranged to：Described outer bar female joint and outer bar male joint are connected by taper thread.
By adopting technique scheme, outer bar female joint and outer bar male joint are connected by taper thread, due to taper thread
There is good sealing it is thus possible to avoid the water in water flowing chamber to reveal.
This utility model is further arranged to：Described outer bar female joint and outer bar male joint grafting, described outer bar male joint
On be provided with all directions plug, described outer bar female joint is provided with all directions jack, described all directions plug is inserted with described all directions jack
Connect.
By adopting technique scheme, outer bar female joint and outer bar male joint are completed by all directions plug and all directions jack
Be detachably connected, because larger moment of torsion can be transmitted in all directions, thus be more suitable in the bore operation of high pulling torque.
This utility model is further arranged to：Described all directions plug is provided with circular plug, and described all directions jack is provided with
Circular socket holes, described circular plug and described circular socket holes grafting, described circular plug is provided with some seal grooves, described close
It is provided with sealing ring in sealing groove.
By adopting technique scheme, the sealing in order to avoid all directions plug and all directions jack can not meet sealing
Property demand, setting circular socket holes and circular plug, and some seal grooves are arranged on circular plug, and arranging in seal groove
Sealing ring, can improve sealing further after grafting.
This utility model is further arranged to：It is provided with locating slot, described all directions on one side of described all directions plug
Be provided with location hole on jack, described location hole is connected with positioning key, described positioning key be arranged in described location hole and with described
Locating slot clamping, described location hole direction is axially vertical with described outer bar, and it is fixed that described locating slot and described positioning in the hole are provided with
Position key.
By adopting technique scheme, locating slot is provided with a side of all directions plug, all directions jack sets
Be equipped with connection location hole, and positioning in the hole install corresponding positioning key, positioning key simultaneously with locating slot clamping, therefore, it is possible to complete
Become the fixation of the axial direction between two neighboring double-wall drill pipe, it is to avoid in use, all directions plug and all directions jack produce and depart from
Deng the axial normal operation of moving influence.
This utility model is further arranged to：Described location hole is circle, and the section of described locating slot is semicircle, described
Positioning key is the positioning key of cylindrical shape, and described location hole, described locating slot, described positioning key are centrally located at same straight line
On.
By adopting technique scheme, location hole is provided in round, and positioning slot cross-section is set to semicircle, and positioning key is
The positioning key of cylindrical shape, three is centrally located on same straight line, said structure have the advantages that manufacture, easy for installation.
This utility model is further arranged to：Described outer bar female joint or outer bar male joint inwall are provided for described interior
Drilling rod carries out the positioning chuck of axially position, described positioning chuck and described spline clamping.
By adopting technique scheme, setting positioning chuck, can be completed for interior brill by positioning chuck and spline
The positioning of bar, thus easily internally drilling rod carries out grafting installation.
This utility model is further arranged to：It is provided with for back-up ring in described outer bar female joint or outer bar male joint inwall
Groove, is detachably connected hole back-up ring in described circlip groove, described hole back-up ring and described positioning chuck are complete with described spline clamping
The axial restraint of described interior drilling rod in pairs.
By adopting technique scheme, positioning chuck passes through the fixation in one direction of the internal drilling rod of spline, in order to
Prevent from skidding off on interior drilling rod other direction, setting circlip groove and in circlip groove providing holes back-up ring, by hole back-up ring for
The barrier effect of spline, thus reach the purpose avoiding interior drilling rod to skid off.
This utility model is further arranged to：Along the circumferential direction consistent seal is connected with three screws to described outer bar, described
Screw supports and is set to, in interior bar, described interior bar is fixed to described outer bar center, described interior bar is provided with for described screw card
The annular groove connecing.
By adopting technique scheme, using three screws equally distributed in outer bar, the interior bar in outer bar is carried out
Fixing, corresponding annular groove is arranged on interior bar simultaneously, therefore three screws can support and be set in annular groove, and can carry out with annular groove
Clamping, interior bar can either be fixed to outer bar center by therefore three screws, and can complete axial fixation, this structure dismounting peace
Dress is simple and fixation is more stable.
This utility model is further arranged to：It is provided with radially fixed for described interior drilling rod in described interior bar to described outer brill
The rubber ring at bar center, described rubber ring arranges the elastic that oriented water (flow) direction is obliquely installed, described elastic naturalness
Lower supporting is located at described outer drilling rod inwall, and along water (flow) direction, water makes elastic be formed to interior bar Direction distortion elastic extruding
Cross water space；Contrary with water (flow) direction, water makes elastic support elastic extruding and sets outer drilling rod inwall.
By adopting technique scheme, rubber ring is arranged on interior bar simultaneously for being fixed to interior bar in outer bar
The heart, further can be supported for interior bar, arrange elastic on rubber ring simultaneously, and elastic tilts to set to water (flow) direction
Put, can support under elastic naturalness and be set on the inwall of outer drilling rod, when there being current to pass through, the extruding due to water makes bullet
Property portion's deformation and then produce so that the gap passed through of current is it is thus possible to so that current pass through, when stopping when supplying water, elasticity
Portion supports and is set on outer drilling rod inwall, thus water can not flow backwards, therefore, this elastic ring have so that current can only unidirectional to probing
Operating direction flows, and is more beneficial for the normal operation of drilling rod.
In sum, this utility model has the advantages that：This utility model can transmitting large torque, be provided with specially
Laser channeling and water stream channel, two interchannels are sealed to each other, have dismounting, quick advantage easy for installation simultaneously.
Brief description
Fig. 1 is the structural representation of embodiment one；
Fig. 2 is A-A direction sectional view in Fig. 1；
Fig. 3 is partial enlarged drawing at B in Fig. 2；
Fig. 4 is the structural representation of outer bar female joint in embodiment one；
Fig. 5 is the structural representation of outer bar male joint in embodiment one；
Fig. 6 is the structural representation of interior bar public affairs sealing shroud in embodiment one；
Fig. 7 is the structural representation of interior bar mother sealing shroud in embodiment one；
Fig. 8 is the structural representation of embodiment one mesopore back-up ring；
Fig. 9 is the structural representation of embodiment two；
Figure 10 is the attachment structure schematic diagram of outer bar male joint and outer bar female joint in embodiment two；
Figure 11 is the perspective view of embodiment three；
Figure 12 is the internal structure schematic diagram of embodiment three；
Figure 13 is partial enlarged drawing at H in Figure 11；
Figure 14 is the configuration schematic diagram of embodiment three.
In figure：1st, outer bar；2nd, outer bar female joint；3rd, outer bar male joint；4th, interior bar；5th, interior bar public affairs sealing shroud；6th, interior bar is female
Sealing shroud；7th, stairstepping chuck；8th, seal groove；9th, sealing ring；10th, connection-peg；11st, spliced eye；12nd, spline；13rd, water flowing chamber；
14th, laser channeling chamber；15th, all directions plug；16th, all directions jack；17th, circular plug；18th, circular socket holes；19th, location hole；20th, fixed
Position key；21st, position chuck；22nd, circlip groove；23rd, hole back-up ring；24th, rubber ring；25th, elastic；26th, screw；27th, annular groove；
28th, locating slot.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Embodiment one：A kind of double-wall drill pipe, as shown in Figures 1 to 7, including outer drilling rod, it is consistent that outer drilling rod includes external diameter
Outer bar 1, that is, outer flat, and outer bar female joint 2 and the outer bar male joint 3 being connected to the two ends of outer bar 1.Flat setting enables to outward
Less resistance can be produced in bore operation it is thus possible to save probing power, increase drilling efficiency.
The two ends of outer bar 1 are welded to connect with outer bar male joint 3 with outer bar female joint 2 respectively, and outer bar female joint 2 and outer bar are public
Joint 3 is connected by taper thread.Outer bar female joint 2 and outer bar male joint 3 are connected by taper thread, because taper thread has well
Sealing it is thus possible to avoid the water in water flowing chamber 13 to reveal.
Be provided with interior drilling rod in outer drilling rod, interior drilling rod includes interior bar 4, and be threaded in interior bar (4) two ends interior
The male sealing shroud of bar 5 and interior bar mother's sealing shroud 6, the two ends of interior bar 4 are additionally provided with for sealing shroud 5 male with interior bar and interior bar mother simultaneously
The stairstepping chuck 7 of sealing shroud 6 grafting, stairstepping chuck 7 is provided with some seal grooves 8, is provided with sealing ring in seal groove 8
9, thus ensureing that there is good sealing.
Connection-peg 10 is provided with interior bar public affairs sealing shroud 5, interior bar mother's sealing shroud 6 is provided with slotting with connection-peg 10 grafting
Connect hole 11, connection-peg 10 outer wall is provided with some seal grooves 8, be provided with sealing ring 9 in seal groove 8 such that it is able to strengthen two
The sealing that person connects.
Additionally, being provided with radially fixed for interior drilling rod to outer drilling rod center on the male sealing shroud of interior bar 5 and interior bar mother's sealing shroud 6
Spline 12, thus meeting the requirement of the axiality of interior drilling rod and outer drilling rod in use.
Outer bar female joint 2 or outer bar male joint 3 inwall are provided for the positioning chuck 21 that internal drilling rod carries out axially position,
Positioning chuck 21 and the clamping of described spline 12, outer bar female joint simultaneously 2 or outer bar male joint 3 inwall are provided with for circlip groove
22, it is provided with hole back-up ring 23 in circlip groove 22.Placement positioning chuck 21 can by position chuck 21 and spline 12 complete for
The positioning of interior drilling rod, thus easily internally drilling rod carries out grafting installation.Positioning chuck 21 passes through spline 12 to interior drilling rod one
Fixation on individual direction, in order to prevent interior drilling rod from skidding off on other direction, setting circlip groove 22 simultaneously sets in circlip groove 22
Put hole back-up ring 23, by hole with back-up ring 23 for spline 12 barrier effect, thus reaching the purpose avoiding interior drilling rod to skid off.
After installing, form, between interior drilling rod and outer drilling rod, the water flowing chamber 13 that ring-type is used for water flowing, in interior drilling rod, be provided with hole
The laser channeling chamber 14 of shape.
This double-wall drill pipe in use, needs to connect together multiple drilling rods thus carrying out drilling operation.Due to
Multiple outer drilling rods are connected by taper thread, and multiple interior drilling rods complete to connect by grafting, have set special sealing structure simultaneously, because
This enough transmitting large torque, laser channeling and water stream channel sealing, have dismounting, quick advantage easy for installation simultaneously.
Embodiment two：A kind of double-wall drill pipe, as shown in Figure 8 and Figure 9, is outer bar public access with embodiment one compared with difference
3 and the connected mode of outer bar female joint 2.
Outer bar female joint 2 and outer bar male joint 3 grafting, outer bar male joint 3 is provided with all directions plug 15, outer bar female joint
It is provided with all directions jack 16, all directions plug 15 and all directions jack 16 grafting on 2.Because larger moment of torsion can be transmitted in all directions, because
And be more suitable in the bore operation of high pulling torque.
In order to preferably ensure sealing, it is provided with circular plug 17 before all directions plug 15, is provided with after all directions jack 16
Circular socket holes 18, circular plug 17 and circular socket holes 18 grafting, circular plug 17 are provided with some seal grooves 8, in seal groove 8
It is provided with sealing ring 9.The sealing of outer drilling rod can preferably be ensured by sealing ring 9.
Being provided with section on a side of all directions plug 15 is semicircular locating slot 28, and all directions jack 16 is arranged
Have circle location hole 19, and location hole 19 in installation corresponding positioning key 20, positioning key 20 simultaneously with locating slot 28 clamping,
Therefore, it is possible to complete the fixation of the axial direction between two neighboring double-wall drill pipe, it is to avoid in use, all directions jack 16 and from all directions
Jack 16 produces the normal operation of moving influence of the axial direction such as disengaging.
Used in the present embodiment all directions plug 15 all directions jack 16 can also replace with six side's plugs, six side's jacks or
The equal connected structures such as cubic plug, cubic jack.
Embodiment three：A kind of double-wall drill pipe, as shown in Figure 10, Figure 11, Figure 12 and Figure 13, compared with embodiment one, its area
It is not：In order to interior bar 4 is relatively fixed to outer bar 1 center, reach the fixation in axial direction, in the circumference of outer bar 1 all simultaneously
Even be provided with three screws 26, three screws 26 are set to interior heavy screw, and three screws 26 are tightly connected with outer bar 1, and support
It is set on one end of interior bar 4, therefore, it is possible to interior bar 4 is fixed to center, in order to preferably carry out axial fixation, including
The corresponding position of bar 4 arrange annular groove 27, screw 26 support be set in annular groove 27, simultaneously annular groove 27 screw 26 can be produced certain
Clamping acts on, thus reaches the purpose that interior bar 4 is relatively fixed in outer bar 1.It is arranged such simple to operate, the connection simultaneously realized
Firm.
Rubber ring 24 is also set up on the other end of interior bar 4 simultaneously for interior drilling rod being fixed to the center of outer drilling rod, energy
Enough further supported for interior drilling rod, elastic 25 is arranged on rubber ring 24 simultaneously, elastic 25 is tilted to water (flow) direction
Setting, can support under elastic 25 naturalness and be set on the inwall of outer drilling rod, when there being current to pass through, the extruding due to water makes
Elastic 25 deforms and then produces so that the gap passed through of current is it is thus possible to so that current pass through, when stopping of supplying water
When, elastic 25 is supported and is set on outer drilling rod inwall, thus water can not flow backwards, and therefore, this elastic ring has so that current can only
Unidirectional to drilling operation direction flowing, be more beneficial for the normal operation of double-wall drill pipe.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonging under this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of without departing from this utility model principle and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of double-wall drill pipe it is characterised in that：Including outer drilling rod, described outer drilling rod includes the consistent outer bar of external diameter (1), and
It is connected to outer bar female joint (2) and the outer bar male joint (3) at the two ends of described outer bar (1), described outer bar female joint (2) and outer bar
Male joint (3) removable seal connects；It is provided with interior drilling rod, described interior drilling rod includes interior bar (4), and spiral shell in described outer drilling rod
Stricture of vagina is connected to the male sealing shroud of interior bar (5) and interior bar mother's sealing shroud (6) at the two ends of described interior bar (4), the two ends of described interior bar (4)
It is additionally provided with the stairstepping chuck (7) for sealing shroud (5) male with described interior bar and mother's sealing shroud (6) grafting of described interior bar, institute
State and some seal grooves (8) are provided with stairstepping chuck (7), in described seal groove (8), be provided with sealing ring (9), described interior bar
Connection-peg (10) is provided with public sealing shroud (5), described interior bar mother's sealing shroud (6) is provided with and described connection-peg (10) grafting
Spliced eye (11), described connection-peg (10) outer wall is provided with some seal grooves (8), is provided with close in described seal groove (8)
Seal (9)；Being provided with the male sealing shroud (5) of described interior bar and described interior bar mother's sealing shroud (6) will be radially fixed for described interior drilling rod
Spline (12) to described outer drilling rod center；Form the water flowing chamber that ring-type is used for water flowing between described interior drilling rod and described outer drilling rod
(13), it is provided with poroid laser channeling chamber (14) in interior drilling rod.
2. double-wall drill pipe according to claim 1 it is characterised in that：Described outer bar female joint (2) and outer bar male joint (3)
Connected by taper thread.
3. double-wall drill pipe according to claim 1 it is characterised in that：Described outer bar female joint (2) and outer bar male joint (3)
Grafting, described outer bar male joint (3) is provided with all directions plug (15), described outer bar female joint (2) is provided with all directions jack
(16), described all directions plug (15) and jack (16) grafting of described all directions.
4. double-wall drill pipe according to claim 3 it is characterised in that：Described all directions plug (15) is provided with circular plug
(17), described all directions jack (16) is provided with circular socket holes (18), and described circular plug (17) is inserted with described circular socket holes (18)
Connect, described circular plug (17) is provided with some seal grooves (8), in described seal groove (8), is provided with sealing ring (9).
5. double-wall drill pipe according to claim 3 it is characterised in that：Arrange on one side in described all directions plug (15)
There is locating slot (28), described all directions jack (16) is provided with location hole (19), described location hole (19) is connected with positioning key
(20), described positioning key (20) be arranged in described location hole (19) and with described locating slot (28) clamping, described location hole (19)
Direction is axially vertical with described outer bar (1), is provided with positioning key (20) in described locating slot (28) and described location hole (19).
6. double-wall drill pipe according to claim 5 it is characterised in that：Described location hole (19) is circle, described locating slot
(28) section is semicircle, and described positioning key (20) is the positioning key (20) of cylindrical shape, described location hole (19), described
Locating slot (28), described positioning key (20) are centrally located on same straight line.
7. the double-wall drill pipe according to claim 1-6 any one it is characterised in that：Described outer bar female joint (2) or outer
Bar male joint (3) inwall is provided for described interior drilling rod is carried out with the positioning chuck (21) of axially position, described positioning chuck
(21) with the clamping of described spline (12).
8. double-wall drill pipe according to claim 7 it is characterised in that：Described outer bar female joint (2) or outer bar male joint (3)
It is provided with inwall for circlip groove (22), in described circlip groove (22), be detachably connected hole back-up ring (23), described hole gear
Circle (23) and described positioning chuck (21) complete the axial restraint to described interior drilling rod with the clamping of described spline (12).
9. the double-wall drill pipe according to claim 1-6 any one it is characterised in that:Described outer bar (1) is along the circumferential direction
Consistent seal is connected with three screws (26), described in described screw (26) is supported and is set to interior bar (4) in and is fixed to described interior bar (4)
Outer bar (1) center, described interior bar (4) is provided with for the annular groove (27) with described screw (26) clamping.
10. double-wall drill pipe according to claim 9 it is characterised in that：It is provided with described interior drilling rod on described interior bar (4)
The radially fixed rubber ring (24) to described outer drilling rod center, described rubber ring (24) arranges what oriented water (flow) direction was obliquely installed
Elastic (25), supports under described elastic (25) naturalness and is located at described outer drilling rod inwall, along water (flow) direction, water is to elastic
(25) extruding makes elastic (25) form water space to interior bar (4) Direction distortion；Contrary with water (flow) direction, water is to elastic
(25) extruding makes elastic (25) support and sets outer drilling rod inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895056.2U CN205936422U (en) | 2016-08-17 | 2016-08-17 | Double -walled drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620895056.2U CN205936422U (en) | 2016-08-17 | 2016-08-17 | Double -walled drilling rod |
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| Publication Number | Publication Date |
|---|---|
| CN205936422U true CN205936422U (en) | 2017-02-08 |
Family
ID=57919245
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620895056.2U Active CN205936422U (en) | 2016-08-17 | 2016-08-17 | Double -walled drilling rod |
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| CN (1) | CN205936422U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106894769A (en) * | 2017-03-06 | 2017-06-27 | 中国石油大学(华东) | A kind of fast joint type double-layer drill rod |
| CN107965274A (en) * | 2018-01-08 | 2018-04-27 | 西南石油大学 | Spline slip-type drill string coupling arrangement |
| CN109882092A (en) * | 2019-03-25 | 2019-06-14 | 无锡市安曼工程机械有限公司 | Two fluid grouting drilling tool |
| CN111155935A (en) * | 2020-01-21 | 2020-05-15 | 浙江乔兴建设集团有限公司 | Drilling device for liquefying saturated soil |
| CN111441729A (en) * | 2020-04-23 | 2020-07-24 | 东营威玛石油钻具有限公司 | Detachable high-sealing double-wall drill rod |
| CN111456647A (en) * | 2020-04-29 | 2020-07-28 | 邹城兖矿泰德工贸有限公司 | Fireproof glue injection steel pipe |
| CN111749618A (en) * | 2020-07-20 | 2020-10-09 | 中山市智合环境技术有限责任公司 | Laser guide drilling method and system based on double-wall drill rod |
| CN111852349A (en) * | 2020-08-28 | 2020-10-30 | 黄伟健 | Drilling drill rod for oil exploitation |
| CN111963075A (en) * | 2020-09-24 | 2020-11-20 | 韶关市铁友建设机械有限公司 | Double-wall guide drill rod |
| CN112483019A (en) * | 2019-09-11 | 2021-03-12 | 航天科工惯性技术有限公司 | Drill collar with stepped sealing structure |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894769B (en) * | 2017-03-06 | 2019-06-21 | 中国石油大学(华东) | A kind of fast joint type double-layer drill rod |
| CN106894769A (en) * | 2017-03-06 | 2017-06-27 | 中国石油大学(华东) | A kind of fast joint type double-layer drill rod |
| CN107965274A (en) * | 2018-01-08 | 2018-04-27 | 西南石油大学 | Spline slip-type drill string coupling arrangement |
| CN109882092A (en) * | 2019-03-25 | 2019-06-14 | 无锡市安曼工程机械有限公司 | Two fluid grouting drilling tool |
| CN112483019A (en) * | 2019-09-11 | 2021-03-12 | 航天科工惯性技术有限公司 | Drill collar with stepped sealing structure |
| CN112483019B (en) * | 2019-09-11 | 2023-01-31 | 航天科工惯性技术有限公司 | Drill collar with stepped sealing structure |
| CN111155935A (en) * | 2020-01-21 | 2020-05-15 | 浙江乔兴建设集团有限公司 | Drilling device for liquefying saturated soil |
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| CN111749618A (en) * | 2020-07-20 | 2020-10-09 | 中山市智合环境技术有限责任公司 | Laser guide drilling method and system based on double-wall drill rod |
| CN111852349A (en) * | 2020-08-28 | 2020-10-30 | 黄伟健 | Drilling drill rod for oil exploitation |
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