CN206693967U - D type coupling type lock cores - Google Patents
D type coupling type lock cores Download PDFInfo
- Publication number
- CN206693967U CN206693967U CN201720414917.5U CN201720414917U CN206693967U CN 206693967 U CN206693967 U CN 206693967U CN 201720414917 U CN201720414917 U CN 201720414917U CN 206693967 U CN206693967 U CN 206693967U
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- CN
- China
- Prior art keywords
- lock core
- outer barrel
- mandrel
- core key
- key
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Abstract
The utility model discloses a kind of D types coupling type lock core, including interior fishing neck and outer barrel, interior fishing neck is sheathed on outer barrel one end, the outer barrel other end couples variable buckle by extension sleeve and cartridge and elastic claw is connected, outer barrel, resilient sleeve is from top to bottom arranged with successively in the cavity that connection variable buckle and cartridge are formed, lock core key mandrel, mandrel and seal cones, lock core key is equipped with the keyway that outer tube inner wall opens up, lock core key one end is extended between outer barrel and lock core the key mandrel, its other end stretches out from outer barrel, and lock core key mandrel is spacing to the progress of lock core key, resilient sleeve upper end is provided with extension sleeve, resilient sleeve upper end is cut open into the telescopic claw of more valves, extension sleeve can be at diverse location in the telescopic claw of resilient sleeve under external force.The lock core sealing effectiveness is good, and settling down for accurate location can be realized as needed by realizing any collar location in any coupling type oil pipe.
Description
Technical field
The utility model belongs to underground control flow engineering device technique field, and in particular to a kind of D types coupling type lock core.
Background technology
D type coupling type lock cores are for the steel wire operation lock core instrument in collar oil line.Lock core is controlled for various undergrounds
The device of flow, such as blanking plug, storm valve, subsurface choke, isolating tool etc. provide underground fixation, while lock core exists
Its outer surface directly provides sealing with work tube inner surface.But existing coupling type lock core can not in tubing coupling any position
Positioning is put, and sealing effectiveness is bad.
Utility model content
The utility model solves the deficiencies in the prior art, there is provided a kind of good D type coupling type lock cores of sealing effectiveness, realizes
Any collar location positioning in any coupling type oil pipe.
Technical scheme is used by the utility model：A kind of D types coupling type lock core, including interior fishing neck and outer barrel, institute
State interior fishing neck and be sheathed on outer barrel one end, the outer barrel other end couples variable buckle by cartridge and elastic claw by extension sleeve
It is connected, is from top to bottom arranged with resilient sleeve, lock in the cavity that the outer barrel, connection variable buckle and cartridge are formed successively
Core key mandrel, mandrel and seal cones, lock core key are equipped with the keyway that the outer tube inner wall opens up, described lock core key one end is prolonged
Between extending outer barrel and lock core the key mandrel, its other end is stretched out from outer barrel, and the lock core key mandrel is carried out to lock core key
Spacing, the resilient sleeve upper end is provided with extension sleeve, and the resilient sleeve upper end is cut open into the telescopic claw of more valves, described
Extension sleeve under external force can be in the telescopic claw of resilient sleeve at diverse location.
Preferably, it is folded with sealing ring between the mandrel and seal cones.
Preferably, the extension sleeve upper surface connects with interior fishing neck lower surface.
Preferably, the elastic claw is sheathed on cartridge outer rim, and lower end of the upper surface of elastic claw with coupling variable buckle
Face is adjacent to.
Preferably, the male cone (strobilus masculinus) of the seal cones connects with cartridge lower surface.
Compared to prior art, the utility model has the advantage that：Lock core underground locking is by lock core key in oil
Positioned in pipe box cupling, any collar location realized in any coupling type oil pipe can realize accurate location as needed
Settle down.Sealing is sealed by lower end cartridge and tube inner wall, and optimal sealing effectiveness is provided for the lock core.Interior salvaging
Neck provides the interior salvaging structure of standard for the dispensing and salvaging of lock core, can be applied using standard fishing tool (adding special feeler lever)
Work industry, convenient to launch fishing.Above-mentioned 3 points are combined with the lock core and synchronously realize well.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of D types coupling type lock core, structure is as shown in figure 1, including interior fishing neck 1 and outer barrel 2, interior 1 set of the fishing neck
Located at the one end of outer barrel 2, the other end of outer barrel 2 couples variable buckle 8 by extension sleeve and is connected in cartridge 11 and elastic claw 10
Together, the outer barrel 2, connection variable buckle 8 and cartridge 11 formed cavity in be from top to bottom arranged with successively resilient sleeve 4,
Lock core key mandrel 5, mandrel 7 and seal cones 9, lock core key 6, the lock are equipped with the keyway 21 that the inwall of outer barrel 2 opens up
The one end of core key 6 is extended between outer barrel 2 and lock core the key mandrel 5, and its other end stretches out from outer barrel 2, and the lock core key core
Axle 5 carries out spacing to lock core key 6, and the upper end of resilient sleeve 4 is provided with extension sleeve 3, and the upper end of resilient sleeve 4 is cut open
Into the telescopic claw 41 of more valves, the extension sleeve 3 under external force can be in the telescopic claw 41 of resilient sleeve 4 in a variety of
, can basis when simultaneous retractable sleeve 3 moves up and down in resilient sleeve 4 at diverse location (lock core, which is opened, withdraws different conditions)
The withdrawal that struts of the telescopic claw 41 of resilient sleeve 4 is realized.
Sealing ring 12 is folded between the mandrel 7 and seal cones 9.
The upper surface of extension sleeve 3 connects with the interior lower surface of fishing neck 1.The elastic claw 10 is sheathed on cartridge 11
Outer rim, and the upper surface of elastic claw 10 is adjacent to coupling the lower surface of variable buckle 8.The male cone (strobilus masculinus) and fluid sealant of the seal cones 9
11 lower surfaces of cylinder connect.
Wherein, lock core key 6 is ejected in the presence of lock core key mandrel 5 and is locked in box cupling.Lock core key mandrel is about 5 simultaneously
The withdrawal that diverse location can limit lock core key 6 is opened.
The lock core is settled down settles down by lock core key 6 at box cupling.
The sealing of oil pipe is strutted by seal cones 9 by cartridge 11 and formed in tube inner wall
Sealing.The up and down motion of lock core key mandrel 5 and mandrel 7 ensure that the withdrawal of lock core key 6
With opening and cartridge 11 struts.
Its operation principle is：Interior fishing neck 1 is designed for lock core dispensing and salvaging, and delivery tool is locked in interior beat
Drag in the salvaging groove of neck 1, delivery tool is linked as with the lock core together with, due to the effect of delivery tool, lock core key core when going into the well
Axle 5 moves down into front end and touched with coupling the end face of variable buckle 8, and now lock core key 6 can be recovered to outer barrel 2 under tube inner wall effect
In keyway 21.Lock core rigid body full-size is 58mm, trouble-free operation can be launched in 62mm oil pipe.
Operation carries instrument upwards to postponing in advance, and lock core key 6 produces relative displacement with outer barrel 2, and lock core key 6 ejects, and touch oil
Inside pipe wall, until be slipped in tubing coupling, continue above to carry, lock core key mandrel 5 moves up, until it maximum cylindrical is moved to
At the keyway 21 of outer barrel 2, lock core key mandrel 5 opens the top completely of lock core key 6, and lock core key 6 is not withdrawn.
Continue above to carry tool string, mandrel 7 drives seal cones 9 to move up, until cartridge 9 is strutted in oil completely
On inside pipe wall, so as to complete to seal.
Above-described embodiment, simply preferred embodiment of the present utility model, not it is used for limiting implementation model of the present utility model
Enclose, therefore all equivalent variations done with content described in the utility model claims, all should be included in the utility model right will
Within the scope of asking.
Claims (5)
1.D type coupling type lock cores, it is characterised in that including interior fishing neck (1) and outer barrel (2), the interior fishing neck (1) is sheathed on
Outer barrel (2) one end, outer barrel (2) other end couple variable buckle (8) by cartridge (11) and elastic claw by extension sleeve
(10) it is connected, is from top to bottom covered successively in the cavity that the outer barrel (2), connection variable buckle (8) and cartridge (11) are formed
Provided with resilient sleeve (4), lock core key mandrel (5), mandrel (7) and seal cones (9), keyway that outer barrel (2) inwall opens up
(21) lock core key (6) is equipped with, described lock core key (6) one end is extended between the outer barrel (2) and lock core key mandrel (5), its
The other end stretches out from outer barrel (2), and the lock core key mandrel (5) carries out spacing, the resilient sleeve (4) to lock core key (6)
Upper end is provided with extension sleeve (3), and resilient sleeve (4) upper end is cut open into the telescopic claw (41) of more valves, the telescopic
Cylinder (3) under external force can be in the telescopic claw (41) of resilient sleeve (4) at diverse location.
2. D types coupling type lock core according to claim 1, it is characterised in that between the mandrel (7) and seal cones (9)
It is folded with sealing ring (12).
3. D types coupling type lock core according to claim 2, it is characterised in that extension sleeve (3) upper surface is beaten with interior
Neck (1) lower surface is dragged for connect.
4. D types coupling type lock core according to claim 3, it is characterised in that the elastic claw (10) is sheathed on fluid sealant
Cylinder (11) outer rim, and the upper surface of elastic claw (10) is adjacent to coupling the lower surface of variable buckle (8).
5. D types coupling type lock core according to claim 4, it is characterised in that the male cone (strobilus masculinus) of the seal cones (9) with it is close
Sealing cylinder (11) lower surface connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720414917.5U CN206693967U (en) | 2017-04-20 | 2017-04-20 | D type coupling type lock cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720414917.5U CN206693967U (en) | 2017-04-20 | 2017-04-20 | D type coupling type lock cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206693967U true CN206693967U (en) | 2017-12-01 |
Family
ID=60445437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720414917.5U Active CN206693967U (en) | 2017-04-20 | 2017-04-20 | D type coupling type lock cores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206693967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611055A (en) * | 2018-12-07 | 2019-04-12 | 柳江 | A kind of passive solvable bridge plug of disintegration formula |
| CN113494259A (en) * | 2020-04-01 | 2021-10-12 | 中国石油天然气集团有限公司 | Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method |
-
2017
- 2017-04-20 CN CN201720414917.5U patent/CN206693967U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611055A (en) * | 2018-12-07 | 2019-04-12 | 柳江 | A kind of passive solvable bridge plug of disintegration formula |
| CN109611055B (en) * | 2018-12-07 | 2021-05-18 | 山东兆鑫石油工具有限公司 | Passive disintegration type soluble bridge plug |
| CN113494259A (en) * | 2020-04-01 | 2021-10-12 | 中国石油天然气集团有限公司 | Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method |
| CN113494259B (en) * | 2020-04-01 | 2023-11-28 | 中国石油天然气集团有限公司 | Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method |
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