CN208267820U - A kind of blanking plug - Google Patents
A kind of blanking plug Download PDFInfo
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- CN208267820U CN208267820U CN201820673723.1U CN201820673723U CN208267820U CN 208267820 U CN208267820 U CN 208267820U CN 201820673723 U CN201820673723 U CN 201820673723U CN 208267820 U CN208267820 U CN 208267820U
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Abstract
Blanking plug provided by the embodiment of the utility model, including blanking plug ontology, elastic shaft sleeve, thrust ring, limiting device, first positioning tube and the second positioning tube, first positioning elastic claw and the second positioning elastic claw make blanking plug that can only complete to set in specific type face, thrust ring and limiting device are fixed on blanking plug ontology by shear pin, elastic shaft sleeve is movably disposed in blanking plug ontology, the upper end of elastic shaft sleeve and the first positioning elastic claw cooperation, middle part is equipped with step surface, lower end is equipped with limiting section, first positioning elastic claw can make elastic shaft sleeve and the second positioning tube relatively fixed, or make elastic shaft sleeve with the second positioning tube relative displacement so that step surface offsets with the second positioning elastic claw, limiting section and limiting device cooperation limit, set blanking plug formation, after the completion of operation, coiled tubing, which above mentions blanking plug by release control, makes its deblocking, and It is final to take out.
Description
Technical field
The utility model relates to oilfield applications, and in particular, to a kind of blanking plug.
Background technique
Continuous oil pipe operation plays vital effect in exploration of oil and gas field and exploitation, and blanking plug is continuous oil
Important component in pipe operation, conventional blanking plug are unable to automatic identification and set type face, cannot also be accurately positioned, the company of affecting
The efficiency of continuous oil pipe operation is only used in well-flushing work, application range is small in addition, conventional blanking plug purposes is single.
Utility model content
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of blanking plug, and the blanking plug cocoa is certainly
Dynamic identification sets type face, accurate positionin, reliable operation, is widely used in the fields such as well-flushing, drilling well, complete well and well logging.
In order to reach the purpose of this utility model, the technical solution that the utility model is taken is as follows:
The utility model embodiment provides a kind of blanking plug, including blanking plug ontology, elastic shaft sleeve, thrust ring, limit
Device, the first positioning tube and the second positioning tube, first positioning tube and second positioning tube are fixed on the blanking plug sheet
On body, it is provided with the first positioning elastic claw on first positioning tube, the second positioning elastic claw, institute are provided on second positioning tube
It states thrust ring and the limiting device to be fixed on the blanking plug ontology by shear pin, the elastic shaft sleeve is movably disposed
In the blanking plug ontology, and the lower end of the elastic shaft sleeve is fixed with the thrust ring；
The upper end of the elastic shaft sleeve is equipped with step surface with the first positioning elastic claw cooperation, the middle part of the elastic shaft sleeve,
The lower end of the elastic shaft sleeve is equipped with limiting section, and the first positioning elastic claw can make the elastic shaft sleeve and second positioning tube
It is relatively fixed, or make the elastic shaft sleeve and the second positioning tube relative displacement so that the step surface and second positioning
Elastic claw offsets, the limiting section and limiting device cooperation limit.
Optionally, the upper end of the elastic shaft sleeve is equipped with clamping portion, and second positioning tube is equipped with corresponding auxiliary section,
The clamping portion is squeezed when the first positioning elastic claw rebound, the clamping portion and the auxiliary section are detached from, and make the elastic shaft
Set can axially move.
Optionally, the limiting section is set as protrusion, and the limiting device is equipped with the groove with the male cooperation.
Optionally, the middle part of the elastic shaft sleeve is annular canister, and the step surface is the outside that the annular canister is arranged in
Annular step surface on wall surface, the top of the annular canister are equipped with multiple first extensions, and the clamping portion setting is described the
On one extension, the lower part of the annular canister is equipped with multiple second extensions, and the limiting section is arranged in second extension
On.
Optionally, core pipe is provided on the inside of the elastic shaft sleeve and first positioning tube.
Optionally, the blanking plug ontology includes top connection, connecting cylinder, lower contact and external seal connector, the top connection
It is set to the blanking plug upper end, the top connection is connected with one end of the connecting cylinder, the other end of the connecting cylinder and institute
The one end for stating external seal connector is connected, and the other end of the external seal connector is connected with first positioning tube, the lower contact
It is set on the outside of the limiting device.
Optionally, the shear pin includes the first shear pin and the second shear pin, and the thrust ring and the lower contact pass through described
The connection of first shear pin, the limiting device are connect with the lower contact by second shear pin.
Optionally, sealing device is provided in the top connection.
Optionally, V-seal part is provided between the connecting cylinder and the external seal connector.
Optionally, the connecting cylinder is equipped with positioning end, and the outer diameter of the positioning end is greater than seating nipple undergauge diameter shrinkage part
Internal diameter.
The technical solution of the utility model compared with prior art, has the following beneficial effects:
Blanking plug provided by the embodiment of the utility model, including blanking plug ontology, elastic shaft sleeve, thrust ring, limiting device,
First positioning tube and the second positioning tube, the first positioning tube and the second positioning tube are fixed on blanking plug ontology, on the first positioning tube
It is provided with the first positioning elastic claw, the second positioning elastic claw, the first positioning elastic claw and the second positioning elastic claw are provided on the second positioning tube
It set blanking plug can only in specific type face, automatic identification, accurate positioning increase the practicability of blanking plug, elastic shaft sleeve
It is movably disposed in blanking plug ontology, wherein the first positioning elastic claw makes elastic shaft sleeve can be relatively fixed with the second positioning tube,
Or make elastic shaft sleeve and the second positioning tube can relative displacement, when blanking plug is after specific type face is set, the first positioning elastic claw makes
Relatively fixed releasing between elastic shaft sleeve and the second positioning tube, enables elastic shaft sleeve to be displaced relative to the second positioning tube；Only
Throw-out collar and limiting device are fixed on blanking plug ontology by shear pin, can be cut shear pin by applying a certain size power, be made
Release control can drive thrust ring mobile, and then the elastic shaft sleeve for releasing fixation is driven to be axially moveable, the platform in the middle part of elastic shaft sleeve
Terrace offsets with the second positioning elastic claw, prevents the second positioning elastic claw automatic rebounding, blanking plug is fixed, at this point, elastic shaft sleeve
Limiting section and the limiting device cooperation of lower end limit, and set blanking plug completion.The blanking plug accurate positioning, effectively identification need to be into
The type face that sets of row, avoids the case where non-setting type face is set, and can bear after the completion of setting centainly above mention and under
Power is put, while can realize that electric pump produces in mobile coiled tubing, tamper is taken out of by starting electric pump production, is effectively improved
De-plugging operating efficiency is rinsed, the risk that coiled tubing meets card is reduced, the operation well off-time is reduced, enhances the timeliness of field operation
Property, and the blocking is safe and reliable, simple and reasonable, manufacturing cost is low, which can be sent into big by coiled tubing
In Wells or horizontal well, solves the drawbacks of conventional blanking plug can only be applied in the shaft, therefore, which is widely applied
In multiple fields such as well-flushing, drilling well, complete well and well loggings.
The upper end of elastic shaft sleeve is equipped with clamping portion, and the second positioning tube is equipped with corresponding auxiliary section, the first positioning
Elastic claw squeezes clamping portion when springing back, clamping portion and auxiliary section are detached from, and can axially move elastic shaft sleeve, when elastic shaft sleeve downlink
When, step surface offsets with the second positioning elastic claw, prevents the second positioning elastic claw from springing back, cooperates with seating nipple inner wall and position, blocks up
Plug device completion is set.When the first positioning elastic claw is not sprung back, elastic shaft sleeve position is fixed, and makes the second positioning elastic claw can be free
Rebound, blanking plug integrally can be moved up and down freely, and the setting of the second positioning elastic claw helps to improve blanking plug and accurately identifies positioning
The ability in type face.
The limiting section of elastic shaft sleeve lower end is the protrusion being arranged outward, and limiting device is recessed equipped with cooperating with limiting section
Slot, when elastic shaft sleeve moves down, the groove on limiting section and limiting device is engaged by clamping, and limits to elastic shaft sleeve,
Its position is fixed, meanwhile, the step surface of elastic shaft sleeve resists the second positioning elastic claw, prevents it from springing back, blanking plug has been set
At.
The annular step surface at middle part can resist the second positioning elastic claw on elastic shaft sleeve, prevent it from springing back, to make to block
Device positions in seating nipple, the clamping portion on the first extension of annular canister, for cooperating with the auxiliary section on the second positioning tube, control
Whether elastic shaft sleeve processed moves in the axial direction, the limiting section on the second extension of annular canister, is used for and limiting device one
It is limited with to elastic shaft sleeve.
It is provided with core pipe on the inside of elastic shaft sleeve and the first positioning tube, elastic shaft sleeve is set in outside core pipe, along the axis of core pipe
It is slided up and down to direction.
Blanking plug ontology includes that top connection, connecting cylinder, lower contact and external seal connector, top connection are set on blanking plug
End, top connection are connected with one end of connecting cylinder, and the other end of connecting cylinder is connected with one end of external seal connector, external seal connector
The other end is connected with the first positioning tube, and lower contact is set on the outside of limiting device, and blanking plug body construction is relatively easy, and connection is tight
It is close, it can reliably work in the complex environment of underground.
Shear pin is divided into the first shear pin and the second shear pin, and thrust ring is connect with lower contact by the first shear pin, limiting device with
Lower contact is connected by the second shear pin, and the power by applying a certain size can cut shear pin, makes limiting device and blanking plug sheet
Body, thrust ring and blanking plug ontology can do opposite sliding.Also, quantity the setting come stopper for regulating of change shear pin can be passed through
With deblocking power, makes setting and unseal power and can adjusting according to actual needs for blanking plug, considerably increase the practicability of blanking plug.
It is provided with sealing device in top connection, increases the sealing performance between blanking plug and coiled tubing, makes blanking plug
After completing to set at seating nipple, effectively coiled tubing is sealed, convenient for being completed while coiled tubing put-on and delegated
The operations such as well-flushing, well logging.
It is provided with V-seal part between connecting cylinder and external seal connector, keeps sealing between blanking plug and seating nipple tight, into
One step strengthens the sealing performance of blanking plug, is conducive to well-flushing, logging operation is gone on smoothly.
Connecting cylinder is equipped with positioning end, when being advanced into seating nipple under blanking plug, since the outer diameter of positioning end is greater than work
The internal diameter of cylinder diameter shrinkage part, prevents blanking plug from continuing traveling downwardly, and is ready for starting to set at this time.The outer diameter of positioning end is
71.37mm, the seating nipple diameter shrinkage part internal diameter are 68-70mm, are guaranteeing positioning end diameter greater than in seating nipple diameter shrinkage part
While diameter, make at blanking plug overall dimensions in the reasonable scope.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solutions of the utility model, and constitutes part of specification,
It is used to explain the technical solution of the utility model together with embodiments herein, not constitute to technical solutions of the utility model
Limitation.
Fig. 1 is the structural schematic diagram of blanking plug described in the utility model embodiment；
Fig. 2 is the enlarged diagram of the portion A structure in Fig. 1；
Fig. 3 is the enlarged diagram of the portion B structure in Fig. 1；
Fig. 4 is the enlarged diagram of the portion C structure in Fig. 1.
Wherein, the relationship in Fig. 1-Fig. 4 between appended drawing reference and component names are as follows:
1 blanking plug ontology, 11 top connections, 12 connecting cylinders, 121 positioning ends, 13 lower contacts, 14 external seal connectors, 2 elastic shafts
Set, 21 clamping portions, 22 step surfaces, 23 limiting sections, 24 core pipes, 3 limiting devices, 31 grooves, 4 first positioning tubes, 41 first positioning
Elastic claw, 5 second positioning tubes, 51 second positioning elastic claws, 511 auxiliary sections, 6 thrust rings, 7V type sealing element, 8 first shear pins, 9 second
Shear pin.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing to this
The embodiment of utility model is described in detail.It should be noted that in the absence of conflict, embodiment in the application and
Feature in embodiment can mutual any combination.
The utility model embodiment provides a kind of blanking plug, as shown in Figure 1, include blanking plug ontology 1, elastic shaft sleeve 2,
Thrust ring 6, limiting device 3, the first positioning tube 4 and the second positioning tube 5, first positioning tube 4 and second positioning tube 5 are solid
It is scheduled on the blanking plug ontology 1, is provided with the first positioning elastic claw 41 on first positioning tube 4, on second positioning tube 5
It is provided with the second positioning elastic claw 51, the thrust ring 6 and the limiting device 3 and the blanking plug ontology 1 is fixed to by shear pin
On, the elastic shaft sleeve 2 is movably disposed in the blanking plug ontology 1, and the lower end of the elastic shaft sleeve 2 is stopped with described
Throw-out collar 6 is fixed, and the upper end of the elastic shaft sleeve 2 cooperates with the first positioning elastic claw 41, and the middle part of the elastic shaft sleeve 2 is equipped with platform
Terrace 22, the lower end of the elastic shaft sleeve 2 are equipped with limiting section 23, the first positioning elastic claw 41 can make the elastic shaft sleeve 2 with
The second positioning elastic claw 51 is relatively fixed, or make the elastic shaft sleeve 2 with second positioning 51 relative displacement of elastic claw so that
The step surface 22 offsets with the second positioning elastic claw 51, the limiting section and the limiting device 3 cooperation limit.The blocking
Device can be detached from before reaching Y-shaped connector positioning with coiled tubing, continued traveling downwardly coiled tubing carrying operation instrument and completed to test,
Blanking plug can propose together ground with coiled tubing and operation instrument after operation.
Blanking plug provided by the utility model embodiment, groundwork process are as follows: the first positioning tube 4 and the second positioning
The first positioning elastic claw 41 and the second positioning elastic claw 51 on cylinder 5 can reach the outside of blanking plug, and coiled tubing is taken by release control
During band blanking plug downlink, two groups of positioning elastic claws are resilient, do not influence the process of going into the well, up to blanking plug tripping in seating nipple position
When setting, the positioning end 121 on blanking plug connecting cylinder 12 is limited by seating nipple diameter shrinkage part, prevents blanking plug from continuing traveling downwardly, this
When blanking plug the first positioning elastic claw 41 compressed that (the first positioning elastic claw 41 is equipped with 2 upper end of elastic shaft sleeve by seating nipple undergauge
Clamping structure, only when the first positioning elastic claw 41 is compressed, elastic shaft sleeve 2 can just be moved down), the second positioning elastic claw 51 is in certainly
By state, state at this moment is set for the starting of blanking plug, continues to push coiled tubing, the first shear pin 8 is cut by shearing force,
The elastic shaft sleeve 2 inside blanking plug moves down at this time, and the limiting section 23 of 2 lower end of elastic shaft sleeve enters limiting device 3, elastic shaft sleeve 2
The step surface 22 in middle position prevents the rebound of the positioning elastic claw 51 of blanking plug second, and blanking plug formation sets and is sealed, together
When do not influence put-on and delegated and rotation of coiled tubing etc. movement.When needing to take out blanking plug after the completion of underground work, above mention
Coiled tubing drives release control and blanking plug uplink, blanking plug external seal connector is separated with seating nipple sealing surface, makes blanking plug
Upper and lower ends pressure is identical, forms self-balancing, continues above to mention coiled tubing at this time, and release control drives 6 uplink of thrust ring, thrust ring
6 elastic shaft sleeve 2 by fixing with itself pushes limiting device 3 to cut the second shear pin 9, to release 3 pairs of elasticity of limiting device
The limit of axle sleeve 2,2 uplink of elastic shaft sleeve, the rebound space of (step surface 22) release the second positioning elastic claw, among elastic shaft sleeve 2
The step surface 22 of position is no longer prevented from the rebound of the second positioning elastic claw 51, so that release control is driven blanking plug on the whole to complete deblocking
Row, finally takes out blanking plug.
Optionally, as shown in Fig. 2, the upper end of elastic shaft sleeve 2 is equipped with clamping portion 21, the second positioning tube 5 is equipped with corresponding
Auxiliary section 511, the first positioning elastic claw 41 squeeze clamping portion 21 when springing back, clamping portion 21 and auxiliary section 511 are detached from, and make elastic shaft sleeve
2 can axially move.
The upper end of elastic shaft sleeve 2 is equipped with clamping portion 21, and the second positioning tube 5 is equipped with corresponding auxiliary section 511, the
One positioning elastic claw 41 squeezes clamping portion 21 when springing back, clamping portion 21 and auxiliary section 511 are detached from, and makes elastic shaft sleeve 2 can be along axial shifting
Dynamic, when 2 downlink of elastic shaft sleeve, step surface 22 offsets with the second positioning elastic claw 51, prevents the second positioning elastic claw 51 from springing back,
Cooperate with seating nipple inner wall and positions.When the first positioning elastic claw 41 is not sprung back, 2 position of elastic shaft sleeve is fixed, and makes second to determine
Position elastic claw 51 can freely be sprung back, and blanking plug integrally can be moved up and down freely, and the setting of the second positioning elastic claw 51 helps to improve stifled
Plug device accurately identifies the ability in location type face.
As shown in figure 3, the limiting section 23 of 2 lower end of elastic shaft sleeve is the protrusion being arranged outward, limiting device 3 is equipped with and limit
The groove 31 that position portion 23 cooperates, when elastic shaft sleeve 2 moves down, limiting section 23 is matched with the clamping of groove 31 on limiting device 3
It closes, elastic shaft sleeve 2 is limited, its position is fixed, meanwhile, the step surface 22 of elastic shaft sleeve 2 resists the second positioning elastic claw
51, prevent it from springing back, blanking plug sets completion.
Optionally, the middle part of elastic shaft sleeve 2 is annular canister, and step surface is the annular being arranged on the outer side surface of annular canister
Step surface, the top of annular canister are equipped with multiple first extensions, and clamping portion 21 is arranged on the first extension, the lower part of annular canister
Equipped with multiple second extensions, limiting section 23 is arranged on the second extension.
As shown in figure 4, the annular step surface at middle part can resist the second positioning elastic claw on elastic shaft sleeve, prevent it from springing back,
To making blanking plug position in seating nipple, the clamping portion on the first extension of annular canister, for matching on the second positioning tube
Conjunction portion cooperation, control elastic shaft sleeve whether move in the axial direction, the limiting section on the second extension of annular canister, for and
Limiting device together limits elastic shaft sleeve.
Optionally, as shown in Figure 1, the inside of elastic shaft sleeve 2 and the first positioning tube 4 is provided with core pipe 24.
The inside of elastic shaft sleeve 2 and the first positioning tube 4 is provided with core pipe 24, and elastic shaft sleeve 2 is set in outside core pipe 24, along core
The axial direction of pipe 24 slides up and down.
Optionally, blanking plug ontology 1 includes top connection 11, connecting cylinder 12, lower contact 13 and external seal connector 14, top connection
11 are set to blanking plug upper end, and top connection 11 is connected with one end of connecting cylinder 12, the other end and external seal connector of connecting cylinder 12
14 one end is connected, and the other end of external seal connector 14 is connected with the first positioning tube 4, and lower contact 13 is set in outside limiting device 3
Side.
1 structure of blanking plug ontology is simple, is completely embedded, and can reliably work in the complex environment of underground.
Optionally, as shown in Figure 1, shear pin is divided into the first shear pin 8 and the second shear pin 9, thrust ring 6 and lower contact 13 pass through the
The connection of one shear pin 8, limiting device 3 are connect with lower contact 13 by the second shear pin 9.
Shear pin is divided into the first shear pin 8 and the second shear pin 9, and the first shear pin 8 enters limiting device 3 through lower contact 13, and second
Shear pin 9 enters thrust ring 6 through lower contact 13, and limiting device 3 is connected with blanking plug ontology 1 by shear pin with thrust ring 6, is cut
Nail can be cut by a certain size power, make limiting device 3 and blanking plug ontology 1, thrust ring 6 and blanking plug ontology 1 can
Do opposite sliding.Also, power can be set and be unsealed come stopper for regulating by changing the quantity of shear pin, considerably increase blocking
The practicability of device.
Optionally, as shown in Figure 1, being provided with sealing device in top connection 11.
It is provided with sealing device in top connection 11, increases the sealing performance between blanking plug and coiled tubing, such as adopt
With combined movable sealing structure, sealed reliable, wearability is good, after making blanking plug complete to set at seating nipple, effectively to even
Continuous oil pipe is sealed, and is convenient for completing the operations such as well-flushing, well logging while coiled tubing put-on and delegated.
Optionally, as shown in Figure 1, being provided with V-seal part 7 between connecting cylinder 12 and external seal connector 14.
It is provided with V-seal part 7 between connecting cylinder 12 and external seal connector 14, makes to seal between blanking plug and seating nipple tight
It is close, the sealing performance of blanking plug is further enhanced, going on smoothly for the operations such as well-flushing, well logging is conducive to.
Optionally, as shown in Figure 1, connecting cylinder 12 is equipped with positioning end 121, the outer diameter of positioning end 121 contracts greater than seating nipple
The internal diameter of path portion.
Connecting cylinder 12 is equipped with positioning end 121, when being advanced into seating nipple under blanking plug, due to the outer diameter of positioning end 121
Greater than the internal diameter of seating nipple diameter shrinkage part, prevent blanking plug from continuing traveling downwardly, is ready for starting to set at this time.
Optionally, the outer diameter of positioning end 121 is 71.37mm, and seating nipple diameter shrinkage part internal diameter is 68-70mm.
While guaranteeing that 121 diameter of positioning end is greater than seating nipple diameter shrinkage part internal diameter, blanking plug overall dimensions is made to be in conjunction
It manages in range.
When blanking plug is lowered into seating nipple diameter shrinkage part, coiled tubing cuts the first shear pin 8 when pressing to setting pressure,
Completion is set；After the completion of operation, coiled tubing is above mentioned, when release control reaches blanking plug position, crosses to mention to setting pressure and cut
Second shear pin 9, complete deblocking, continue on extract blanking plug.
Before well operations under blanking plug, the work of following several respects should be done: 1. checking for corrosion or mechanical damage；
2. external seal is intact in confirming；3. release control front end and dispensing rod rear end are dismantled, release control front end is from blanking plug
(upper end that one end locating for top connection is blanking plug) insertion is held, rear end is inserted into and release control upper end phase from blanking plug lower end
Even；4. release control front end is connected by 1 " AMMT BOX with coiled tubing.
The blanking plug should be noted that the following before assembly: 1. all processing parts want deburring, cleaning；2. hole is matched
It closes, the cooperation of screw thread needs pre-assembled；3. assembling process need to refer to BOM table and assembling schematic diagram.
The specific installation step of blanking plug are as follows:
1. by sealing device (such as O-ring, sealing ring, sealing support frame) installation to top connection；
2. installing O-ring additional in connecting cylinder；
3. connecting cylinder is connected with top connection, screw；
4. external seal connector is connected with connecting cylinder lower end, V-seal part 7 is set in the junction of the two and by the two
It screws；
5. elastic shaft sleeve is put into from the first positioning tube positioning tube upper end, elastic shaft sleeve lower end should be exposed to the second positioning tube
(being connected with the first positioning tube lower end) lower end；
6. installing core pipe according to shown in attached drawing to elastic shaft sleeve；
7. the first positioning tube is connected with external seal connector, screw；
8. limiting device is put into lower contact as shown in Figure 1, to good shear pin hole site, the second shear pin is installed, is symmetrically installed；
9. thrust ring is placed at elastic shaft sleeve as shown in Figure 1；
10. keeping the position of thrust ring, lower contact is connected with the second positioning tube, is screwed；
11. adjusting the position of thrust ring, to the shear pin hole site of good thrust ring and lower contact, the first shear pin is installed, symmetrically
Installation；
12. after installation, removing the impression of bench vice and spanner.
The specific demounting procedure of blanking plug are as follows:
1. being threadedly coupled between lower contact and the second positioning tube, lower contact is screwed and is removed, removes the shear pin of cutting；
2. limiting device and thrust ring are removed from elastic shaft sleeve lower end, it is residual to remove used shear pin in shear pin hole
It stays；
3. top connection is disassembled from connecting cylinder, sealing device is taken out；
4. removing connecting cylinder from external seal connector, V-seal part 7 is removed；
5. removing external seal connector from the first positioning tube；
6. core pipe and elastic shaft sleeve are taken out；
7. removing whole O-rings；
8. cleaning and checking whether all components wear or destroy.
In addition, blanking plug provided in this embodiment can be stored under dry environment for a long time indoors, material is using high-strength
Stainless steel is spent, corrosion resistance is splendid, wherein non-metallic seal can remove when not used, be protected from light under the conditions of rated temperature
It saves.Blanking plug can also overall package it is good after store, it should be noted that the protection of non-metallic seal, and use bracket traverse, avoid
Positioning elastic claw is compressed for a long time to influence its resilience performance.
In the description of the present application, directional terminology "upper" "lower" refers to, along the direction that sets of blanking plug, front side is
"lower", rear side are "upper".
Embodiment described above only expresses the several embodiment of the utility model, and description is more specific and detailed
Carefully, but the content only the utility model and the embodiment that uses for ease of understanding, it is not intended to limit the utility model.
Technical staff in any the utility model fields, in the premise for not departing from spirit and scope disclosed by the utility model
Under, any modification and variation, but the scope of patent protection of the utility model can be carried out in the form and details of implementation, still
The appended claims that must be subject to is defined.
Claims (10)
1. a kind of blanking plug, it is characterised in that: including blanking plug ontology, elastic shaft sleeve, thrust ring, limiting device, the first positioning
Cylinder and the second positioning tube, first positioning tube and second positioning tube are fixed on the blanking plug ontology, and described first
It is provided with the first positioning elastic claw on positioning tube, the second positioning elastic claw, the thrust ring and institute are provided on second positioning tube
It states limiting device to be fixed on the blanking plug ontology by shear pin, the elastic shaft sleeve is movably disposed at the blanking plug
In ontology, and the lower end of the elastic shaft sleeve is fixed with the thrust ring；
The upper end of the elastic shaft sleeve and the first positioning elastic claw cooperation, the middle part of the elastic shaft sleeve is equipped with step surface, described
The lower end of elastic shaft sleeve is equipped with limiting section, and the first positioning elastic claw can make the elastic shaft sleeve opposite with second positioning tube
It is fixed, or make the elastic shaft sleeve and the second positioning tube relative displacement so that the step surface and the second positioning elastic claw
It offsets, the limiting section and limiting device cooperation limit.
2. blanking plug according to claim 1, it is characterised in that: the upper end of the elastic shaft sleeve is equipped with clamping portion, described
Second positioning tube is equipped with corresponding auxiliary section, and the first positioning elastic claw squeezes the clamping portion, the clamping portion when springing back
It is detached from the auxiliary section, can axially move the elastic shaft sleeve.
3. blanking plug according to claim 2, it is characterised in that: the limiting section is set as protrusion, the limiting device
It is equipped with the groove with the male cooperation.
4. blanking plug according to claim 2, it is characterised in that: the middle part of the elastic shaft sleeve be annular canister, described
Terrace is the annular step surface being arranged on the outer side surface of the annular canister, and the top of the annular canister is equipped with multiple first and prolongs
Extending portion, the clamping portion are arranged on first extension, and the lower part of the annular canister is equipped with multiple second extensions, described
Limiting section is arranged on second extension.
5. blanking plug as claimed in any of claims 1 to 4, it is characterised in that: the elastic shaft sleeve and described the
Core pipe is provided on the inside of one positioning tube.
6. blanking plug as claimed in any of claims 1 to 4, it is characterised in that: the blanking plug ontology includes upper
Connector, connecting cylinder, lower contact and external seal connector, the top connection are set to the blanking plug upper end, the top connection and institute
The one end for stating connecting cylinder is connected, and the other end of the connecting cylinder is connected with one end of the external seal connector, and the external seal connects
The other end of head is connected with first positioning tube, and the lower contact is set on the outside of the limiting device.
7. blanking plug according to claim 6, it is characterised in that: the shear pin includes the first shear pin and the second shear pin, institute
It states thrust ring and is connect with the lower contact by first shear pin, the limiting device and the lower contact pass through described second
Shear pin connection.
8. blanking plug according to claim 6, it is characterised in that: be provided with sealing device in the top connection.
9. blanking plug according to claim 6, it is characterised in that: be arranged between the connecting cylinder and the external seal connector
There is V-seal part.
10. blanking plug according to claim 6, it is characterised in that: the connecting cylinder is equipped with positioning end, the positioning end
Outer diameter be greater than seating nipple diameter shrinkage part internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820673723.1U CN208267820U (en) | 2018-05-07 | 2018-05-07 | A kind of blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820673723.1U CN208267820U (en) | 2018-05-07 | 2018-05-07 | A kind of blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208267820U true CN208267820U (en) | 2018-12-21 |
Family
ID=64682001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820673723.1U Active CN208267820U (en) | 2018-05-07 | 2018-05-07 | A kind of blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208267820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961647A (en) * | 2022-05-16 | 2022-08-30 | 练志欣 | Oil pipe plug for oil exploitation and use method thereof |
| CN115749666A (en) * | 2022-11-01 | 2023-03-07 | 四川圣诺油气工程技术服务有限公司 | Underground ratchet type blanking plug |
-
2018
- 2018-05-07 CN CN201820673723.1U patent/CN208267820U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961647A (en) * | 2022-05-16 | 2022-08-30 | 练志欣 | Oil pipe plug for oil exploitation and use method thereof |
| CN115749666A (en) * | 2022-11-01 | 2023-03-07 | 四川圣诺油气工程技术服务有限公司 | Underground ratchet type blanking plug |
| CN115749666B (en) * | 2022-11-01 | 2023-04-07 | 四川圣诺油气工程技术服务有限公司 | Underground ratchet type blanking plug |
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