CN205532463U - Anchoring device in pit of oil pipe shutoff instrument - Google Patents
Anchoring device in pit of oil pipe shutoff instrument Download PDFInfo
- Publication number
- CN205532463U CN205532463U CN201620314137.9U CN201620314137U CN205532463U CN 205532463 U CN205532463 U CN 205532463U CN 201620314137 U CN201620314137 U CN 201620314137U CN 205532463 U CN205532463 U CN 205532463U
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- hole
- claw
- slide block
- outer tube
- oil pipe
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Abstract
The utility model discloses an anchoring device in pit of oil pipe shutoff instrument, the device includes the outer tube, the inner wall of outer tube is equipped with prevents changeing the feather key, is equipped with the slider in the outer tube, is equipped with anti -rotating groove on the slider, the slider is the frustum structure, is equipped with the screw thread through -hole on the axis of slider, and the screw thread through -hole is connected with screw drive, be equipped with on the conical surface of slider along the dovetail of circumference equipartition, the dovetail key sliding connection of dovetail and jack catch one end, the jack catch other end are equipped with the anchoring tooth, the anchoring tooth one end of jack catch from the jack catch hole on the outer tube stretch out and with jack catch hole sliding connection, the slider bottom is equipped with the spring. The utility model discloses simple structure, easy dismounting, automatically controlled anchoring, the anchor station is accurate reliable, but the anchoring inefficacy is avoided in reverse pressure -bearing auto -lock. Receiving the claw chronozone function of skidding, can avoiding excessively tightening up, it can be in the anchoring everywhere of oil pipe optional position behind the claw to open.
Description
Technical field
This utility model relates to the down-hole anchoring device of a kind of oil pipe capping tools, belongs to downhole instrument structure technology neck
Territory.
Background technology
Generally use tubing string blocking technology to contain pit shaft overflow during water injection well Operating Pressure, in tubing string, specifically put into envelope
Stifled instrument realizes closure.But tripping out during due to operation and there is vibration in Tubing During Running, pressure reduction and pressure oscillation, in order to prevent envelope
Stifled tool failures fly out, and bring potential safety hazard, need to increase anchor mechanism on capping tools and are fixed by capping tools.Existing
Blocking technology can not carry out grappling in optional position in tubing string, can not carry out grappling in the above position of tool segment especially.Therefore, existing
The down-hole anchored mode of some oil pipe capping toolses or not ideal enough, still can not meet the needs of production.
Utility model content
The purpose of this utility model is, it is provided that the down-hole anchoring device of a kind of oil pipe capping tools, with at water flooding well pipe
In post, optional position carries out quick grappling, thus overcomes the deficiencies in the prior art.
The technical solution of the utility model is achieved in that
The down-hole anchoring device of a kind of oil pipe capping tools of the present utility model is that this device includes outer tube；Outer tube interior
Wall is provided with anti-rotation feather key, is provided with slide block in outer tube, and slide block is provided with anti-rotation groove；Anti-rotation groove is axially slided with the anti-rotation feather key on outer tube
It is dynamically connected；Slide block is frustum structure, and the axis of slide block is provided with tapped through hole, and tapped through hole is connected with screw drive；Slide block
The conical surface is provided with the dovetail groove being uniformly distributed along the circumference, and dovetail groove is slidably connected with the dovetail key of claw one end, and the claw other end is provided with
Grappling tooth, claw hole from outer tube, the grappling tooth one end of claw is stretched out and is slidably connected with claw hole；Slider bottom is provided with bullet
Spring.
In aforementioned means, described dovetail groove is arcuate groove, and corresponding with the radian of the frustum top edge of slide block.
In aforementioned means, described dovetail key is the taper key corresponding with slide block tapering.
In aforementioned means, the shape in described claw hole is corresponding with the cross sectional shape of claw.
In aforementioned means, the stroke range that the reach on described screw rod moves along screw rod with slide block is corresponding, its remaining part
Being divided into polished rod, the diameter of polished rod is less than footpath, the end size of screw thread.
Owing to have employed technique scheme, compared with prior art, this utility model has structure letter to this utility model
List, easy accessibility, can carry out easily automatically controlled grappling and anchor station accurately and reliably, reverse pressure-bearing can self-locking, can effectively keep away
Exempt from the advantages such as grappling inefficacy.Additionally, this utility model also has band skidding function when receiving pawl, can be prevented effectively from and excessively tighten up,
After pawl can grappling tube inner wall also can grappling injection well downhole flow regulator passage, the advantages such as grappling can be carried out the most everywhere.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram of claw contraction state；
Fig. 3 is the schematic diagram that claw stretches out state；
Fig. 4 is the claw schematic diagram being uniformly distributed along the circumference；
Fig. 5 is the structural representation of slide block；
Fig. 6 is the structural representation of outer tube.
Being labeled as in figure: 1 outer tube, 2 anti-rotation feather keys, 3 slide blocks, 4 anti-rotation grooves, 5 skidding steps, 6 spiral shells
Stricture of vagina through hole, 7 screw rods, 8 dovetail grooves, 9 claws, 10 dovetail keies, 11 grappling teeth, 12 claw holes, 13 springs.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, but not as new to this practicality
Any restriction of type.
This utility model is that the down-hole anchorage method according to following a kind of oil pipe capping tools is constituted, such as Fig. 1-3
Shown in: the method drives the slide block 3 in outer tube 1 axially to move up and down by screw rod 7；Slide block 3 is frustum, the conical surface of slide block 3
Being provided with the claw 9 being uniformly distributed along the circumference, be slidably connected by dovetail groove 8 and dovetail key 10 between claw 9 and slide block 3, claw 9 is another
One end is provided with grappling tooth 11 the pipe string internal wall grappling through outer tube 1 with down-hole；Original state, claw 9 is positioned at slide block 3 top end
In rounding state；When screw rod 7 rotates forward and moves on band movable slider 3, claw 9 is protruding under the promotion of slide block 3 conical surface, until with
The pipe string internal wall contact of down-hole grappling；Otherwise when screw rod 7 invert band movable slider 3 move down time, claw 9 is dovetail groove 8 in slide block 3
Pulling under to contract, it is achieved release grappling.The stroke model that reach on screw rod 7 moves up and down along screw rod 7 with slide block 3
Enclosing correspondence, remainder is polished rod；The diameter of polished rod is less than footpath, the end size of screw thread；Reversion screw rod is continued after releasing grappling,
Until after the anchored end of claw 9 is contracted in the external diametrical extent of outer tube 1 completely, the screw thread on screw rod 7 just with the interior spiral shell of slide block 3
Stricture of vagina disengages, it is achieved screw rod 7 skid, prevents claw 9 from excessively drawing in stuck with screw rod 7.Described slider bottom is provided with spring 13,
By the upper top power of spring 13, after making the thread segment on screw rod 7 disengage with the female thread on slide block 3, energy when again rotating forward screw rod 7
Engage with the female thread on slide block 3 rapidly.The anchored end of claw 9 is provided with grappling tooth 11, to increase friction guarantee anchorage force and anchor
Determine effect；And the external tensility of the biggest claw of pressures below 9 is the biggest at grappling, grappling is more firm, it is achieved grappling self-locking.
According to the down-hole anchoring device of of the present utility model a kind of oil pipe capping tools that said method is constituted, such as Fig. 1-3
Shown in, this device includes outer tube 1；The inwall of outer tube 1 is provided with anti-rotation feather key 2, is provided with slide block 3 in outer tube 1, and slide block 3 is provided with anti-
Turn trough 4；Anti-rotation groove 4 is in axial sliding connection with the anti-rotation feather key 2 on outer tube 1；Slide block 3 is frustum structure, and the axis of slide block 3 sets
Tapped through hole 6, tapped through hole 6 is had to be in transmission connection with screw rod 7；The conical surface of slide block 3 is provided with the dovetail groove 8 being uniformly distributed along the circumference, swallow
Stern notch 8 is slidably connected with the dovetail key 10 of claw 9 one end, and claw 9 other end is provided with grappling tooth 11, the grappling tooth 11 1 of claw 9
End claw hole 12 from outer tube 1 is stretched out and is slidably connected with claw hole 12；Spring 13 it is provided with bottom slide block 3.Dovetail groove 8 is arc
Shape groove, and corresponding with the radian of the frustum top edge of slide block 3.Dovetail key 10 is the taper key corresponding with slide block 3 tapering.Claw hole
The shape of 12 is corresponding with the cross sectional shape of claw 9.The stroke range pair that reach on screw rod 7 moves along screw rod 7 with slide block 3
Should, remainder is polished rod, and the diameter of polished rod is less than footpath, the end size of screw thread.
Embodiment
As Figure 1-3, the slide block 3 of this example and screw rod 7 are by trapezoidal thread transmission, and slide block 3 can be in outer tube 1 centre bore
Slide, at the uniform dovetail groove 8 having certain slope of slide block 3 circumferencial direction, outer tube 1 circumference is also evenly equipped with and claw 9 phase
The hole coordinated, under trapezoidal thread transmission, slide block 3 moves axially, it is achieved claw 9 is pushed open or drawn in.Slide block 3 slide downward is drawn in
After claw 9, disengage with the screw thread on screw rod 7, skid can be realized, it is to avoid claw 9 excessively draws in stuck with screw rod 7.Sliding
Block 3 bottom is provided with spring 13, and when slide block 3 upward sliding pushes claw 9 open, spring 13 can ensure that screw thread pair engages rapidly.Card
Pawl 9 open with tube inner wall or injection well downhole flow regulator channel contact after grappling, the anchored end of claw 9 is provided with grappling tooth 11, it is possible to increase rub
Wiping and ensure anchorage force and anchoring effect, when there is pressure reduction, whole capping tools stress, claw 9 contacts inclined-plane with slide block 3 and can realize
Self-locking, claw 9 movement tendency is more toward overhanging, and grappling is more firm.
Claims (5)
1. a down-hole anchoring device for oil pipe capping tools, including outer tube (1)；It is characterized in that: the inwall of outer tube (1) is provided with
Anti-rotation feather key (2), is provided with slide block (3) in outer tube (1), slide block (3) is provided with anti-rotation groove (4)；On anti-rotation groove (4) and outer tube (1)
Anti-rotation feather key (2) be in axial sliding connection；Slide block (3) is frustum structure, and the axis of slide block (3) is provided with tapped through hole (6), spiral shell
Stricture of vagina through hole (6) is in transmission connection with screw rod (7)；The conical surface of slide block (3) is provided with the dovetail groove (8) being uniformly distributed along the circumference, dovetail groove (8)
Being slidably connected with the dovetail key (10) of claw (9) one end, claw (9) other end is provided with grappling tooth (11), the grappling tooth of claw (9)
(11) claw hole (12) from outer tube (1), the one end is stretched out and is slidably connected with claw hole (12)；Slide block (3) bottom is provided with spring
(13).
The down-hole anchoring device of oil pipe capping tools the most according to claim 1, it is characterised in that: described dovetail groove (8) is
Arcuate groove, and corresponding with the radian of the frustum top edge of slide block (3).
The down-hole anchoring device of oil pipe capping tools the most according to claim 1, it is characterised in that: described dovetail key (10) is
The taper key corresponding with slide block (3) tapering.
The down-hole anchoring device of oil pipe capping tools the most according to claim 1, it is characterised in that: described claw hole (12)
Shape is corresponding with the cross sectional shape of claw (9).
The down-hole anchoring device of oil pipe capping tools the most according to claim 1, it is characterised in that: on described screw rod (7)
Reach is corresponding along the stroke range of screw rod (7) movement with slide block (3), and remainder is polished rod, and the diameter of polished rod is less than spiral shell
Footpath, the end size of stricture of vagina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620314137.9U CN205532463U (en) | 2016-04-15 | 2016-04-15 | Anchoring device in pit of oil pipe shutoff instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620314137.9U CN205532463U (en) | 2016-04-15 | 2016-04-15 | Anchoring device in pit of oil pipe shutoff instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532463U true CN205532463U (en) | 2016-08-31 |
Family
ID=56792792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620314137.9U Active CN205532463U (en) | 2016-04-15 | 2016-04-15 | Anchoring device in pit of oil pipe shutoff instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214224A (en) * | 2017-06-30 | 2017-09-29 | 东风（十堰）汽车管业有限公司 | A kind of raised fixture of upsetting pipe end |
| CN111059401A (en) * | 2019-12-17 | 2020-04-24 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Transversely-installed longitudinal sealing plug |
-
2016
- 2016-04-15 CN CN201620314137.9U patent/CN205532463U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214224A (en) * | 2017-06-30 | 2017-09-29 | 东风（十堰）汽车管业有限公司 | A kind of raised fixture of upsetting pipe end |
| CN111059401A (en) * | 2019-12-17 | 2020-04-24 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Transversely-installed longitudinal sealing plug |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |