CN104534218B - Dynamic expansion oil pipe joint for low oil pressure - Google Patents
Dynamic expansion oil pipe joint for low oil pressure Download PDFInfo
- Publication number
- CN104534218B CN104534218B CN201410644668.XA CN201410644668A CN104534218B CN 104534218 B CN104534218 B CN 104534218B CN 201410644668 A CN201410644668 A CN 201410644668A CN 104534218 B CN104534218 B CN 104534218B
- Authority
- CN
- China
- Prior art keywords
- oil
- ring
- connector
- pressure
- spacing ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001737 promoting effect Effects 0.000 claims description 22
- 230000008961 swelling Effects 0.000 claims description 13
- 230000000452 restraining effect Effects 0.000 claims description 6
- 230000003205 diastolic effect Effects 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229920003266 Leaf® Polymers 0.000 description 6
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a dynamic expansion oil pipe joint for low oil pressure. The dynamic expansion oil pipe joint mainly comprises an oil pipe joint body, and a driving block arranged in the oil pipe joint body, wherein multiple pressure bearing pieces are arranged in the driving block, and are communicated with a relatively slipping inclined surface mechanism; multiple pushing keys projected on the wall surface of the oil pipe joint body are arranged on the outer wall of the driving block; the surfaces of the pushing keys are inclined surfaces; when oil pressure is increased, the pushing keys are displaced, and drive a rubber ring coating the outer wall of the oil pipe joint body to expand so as to increase the binding force between the oil pipe joint and the oil pipe wall surface; and the pressure bearing pieces solve the problem that pushing blocks can be driven through higher oil pressure due to weak pressure bearing and movement sensitivity.
Description
Technical field
The present invention relates to a kind of low oil pressure dynamic swelling oil connection, belong to oil pressure unit fuel feeding pipe joint field.
Background technology
More and more faster with present industrial development, maximization equipment also gets more and more, and in many fields driving or bearing a heavy burden, the use of hydraulic pressure is widely；
First in building field, in order to reduce the impact to local environment for the construction site（The dust that such as cement flour brings）, typically now all prefabricated component is carried out using the place beyond building site, is then moved to by big machinery and assembled on construction site；
Furthermore in mineral products industry, the demand of colliery and building stones is also increasing now, traditional small-sized excavation mechinery can not meet present demand, and if relevant device is built in local production, though can be cost-effective, but greatly can extend the duration, thus now much large-scale mineral reserve equipment be all elsewhere produce finish after, transported to by big machinery and assembled on building site；
In above-mentioned operating mode, it is required for using the relatively large hydraulic pressure weight lifting machinery of ratio, this kind of large hydraulic machinery is very high for the stability of oil connection and pressure-bearing property requirement, so the pressure-bearing property of oil pipe and oil connection directly determines the load-bearing property of hydraulic pressure weight lifting machinery；
ZL201110074024.8 propose a kind of can be with the pipe joint of straight cutting, this oil connection is locked to pipeline wall by the ratchet of lock ring, if but the hardness of the ratchet of this kind of structure is more than the hardness of pipe surface, ratchet itself can cause certain damage to duct wall, if the hardness of ratchet is less than the hardness of pipe surface, so its lock ability can be had a greatly reduced quality, and the pipe joint mentioned in the displosure document, its sealability is determined by the hardness of pipeline and the hardness of ratchet and density, its sealing force cannot be reacted with the unexpected increase of oil pressure,（The sealing force of its own cannot be increased while oil pressure increases）Once oil pressure exceedes suddenly scope of design, pipeline rupture will be produced or come off, once the oil pressure of weight lifting equipment is lost, will related generation accident, said structure is more complicated simultaneously, part is more, can be poor to the tolerance of environment, in the more feelings of the impurity such as sandy soil, whole locking mechanism is easy to occur stuck；
For another example the oil connection that ZL201220170360.2 is previously mentioned, wherein using double socket joint types and employ a Clip Reed and be fixed, in the range of the pressure-bearing of Clip Reed, because opposing force, with the expansion of oil pipe, its sealing force can gradually step up, but its pressure-bearing scope also suffers from the restriction of Clip Reed, once pressure is excessive, Clip Reed still can fall off, and causes danger.
Content of the invention
The technical problem to be solved in the present invention is：Overcome sealing mechanism bearing capacity in prior art limited, and baroque technical problem, some dynamic swelling joint requirements to oil pressure simultaneously existing are higher, be not suitable for the higher working environment of sensitivity requirement, provide a kind of can be according to the oil connection of tubing pressure adjust automatically tightness.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of low oil pressure dynamic swelling oil connection, 1. includes connecting portion, drive division, closure；
Described connecting portion includes joint body, and one end of joint body is provided with equipment connector, and the other end of joint body is provided with connector of oil pipes of oil, and described connector of oil pipes of oil includes a fixation surface for contacting with tube inner wall；
Described drive division includes being arranged on the drive block of connector of oil pipes of oil inwall and promotes ring, described drive block is hollow cylindrical, the outer wall annular array of drive block is provided with some projection keys, the axis of described projection key and the diameter parallel of drive block, it is additionally provided with promotion key on the top of described projection key, the described upper surface promoting key is an inclined-plane, it is connected by a connection ring between described promotion ring and drive block end, the external diameter of described connection ring is less than the external diameter of drive block, and the acute angle of described promotion key is oriented to the side of drive block dorsad connection ring；
In described connector of oil pipes of oil inwall, the side promoting ring is provided with a spacing ring B，The side dorsad promoting ring in connector of oil pipes of oil inwall arranges restraining position ring block A，Restraining position ring block C is set between spacing ring A and spacing ring B，The described outer wall of spacing ring C is fixedly connected with the inwall of connector of oil pipes of oil，The described inwall of spacing ring C and the outer wall of connection ring are slidably connected，The internal diameter of described spacing ring C is less than the external diameter promoting ring，It is provided with an expansion spring between described promotion ring and spacing ring B，It is provided with an annular protrusion between described promotion ring and spacing ring C，The section of described annular protrusion is right angled triangle，One right-angle side of described annular protrusion is located on the inwall of connector of oil pipes of oil，On the inwall of described drive block, annular array has some expanding blocks，Described expanding block includes pressure-bearing plate and the sidesway block of tile，The arc center of circle of the pressure-bearing plate of tile is located on the axis of connector of oil pipes of oil，Sidesway block is arranged on the side in the pressure-bearing plate dorsad center of circle，In described connection ring, the fixed position annular array of corresponding expanding block is provided with some sliding trays，The section of described sidesway block is all right angled triangle，The triangular ramp A of described sidesway block is contacted through sliding tray with annular protrusion triangular ramp B，When sidesway block moves towards connector of oil pipes of oil inwall under the drive of pressure-bearing plate，There is relative slip with triangular ramp B in triangular ramp A，Thus promoting drive block to move towards spacing ring A，In described pressure-bearing plate, the side in the center of circle is provided with the groove of one or more，It is fixed together by a flexible fastening ring being embedded in each pressure-bearing plate groove between described pressure-bearing plate；
Described connector of oil pipes of oil internal face, be located at and between spacing ring A and spacing ring C, be additionally provided with the keyway A making linear slide for raised key, the top of keyway A is provided with the keyway B for promoting key to slide, the height of described keyway B is less than the average height promoting key inclined-plane, the length of described drive block is L with the length difference of keyway A, and the length of described promotion ring deducts the thickness of spacing ring C equal to L；
Position annular array between the corresponding spacing ring C and spacing ring A of described connector of oil pipes of oil outer wall is provided with some flexible connection pieces, has a rubber ring in aforementioned flexible connection sheet outer wrap.
As the innovation further of the present invention, described spring leaf is spring leaf, and described spring leaf is plugged on connector of oil pipes of oil outer wall.
As the innovation further of the present invention, described equipment connector and connector of oil pipes of oil are integral type, and described equipment connector is located at the side of connector of oil pipes of oil afterbody, dorsad spacing ring A.
As the innovation further of the present invention, threaded end is arranged on the afterbody inwall of described connector of oil pipes of oil, described equipment connector is the aforesaid end of thread.
As the innovation further of the present invention, spacing ring B is connected with connector of oil pipes of oil inwall by screw thread.
As the innovation further of the present invention, on the internal face of described spacing ring B, annular array is provided with some fixture blocks.
As the innovation further of the present invention, the maximum Diastolic Force of described expansion spring is equal to the minimum deformation power of oil pipe wall.
As the innovation further of the present invention, the outer wall of described connector of oil pipes of oil is additionally provided with one for carrying out spacing spacing garter spring to oil pipe superficial expansion, is provided with the toroidal cavity for accommodating oil pipe wall between described spacing garter spring and rubber ring.
The invention has the beneficial effects as follows：
1st, the present invention is by a drive division being driven by fluid pressure, by fluid pressure, promote pressure-bearing plate, make to occur between triangular ramp A and triangular ramp B relative to sliding so that drive division moves, the promotion key of drive division outer surface drives rubber ring outward expansion, thus increasing the fixing force between tube inner wall and connector of oil pipes of oil, drive division can be made using metal, and no matter pressure is much, and the pressure-bearing limit of joint is all determined by the limit of expansion of oil pipe；Pressure-bearing plate is bigger compared to the pressure-bearing contact surface of pushing block simultaneously, so it is possible to realize the driving of drive division under relatively low oil pressure condition；The present invention, after reduced pressure, by flexible connection piece, so that drive division return, after preventing the long-time expansion of oil pipe, occurs aging or damaged, pressure-bearing plate can improve integrally-built pressure-sensitivity simultaneously.
2nd, the flexure strip of the present invention is the spring leaf of plug-in type, can be conveniently replaceable, and improves the durability of joint, reduces maintenance cost.
3rd, the equipment connector of integral type and connector of oil pipes of oil can improve resistance to compression and the leak resistance of joint further.
4th, the connector of screw-type connects convenient and stablizes.
5th, spacing ring is threadably secured in that context it may be convenient to be dismantled drive block, can easily adjust the precompressed value of expansion spring simultaneously.
6th, the internal face in spacing ring is provided with some fixture blocks, by sleeve corresponding with fixture block in that context it may be convenient to spacing ring is adjusted.
7th, the maximum Diastolic Force of expansion spring is equal to the minimum deformation power of oil pipe wall, when oil pressure is constant, so that oil pipe wall is in relaxation state, improves durability and the life-span of oil pipe.
8th, the spacing garter spring of the present invention can carry out spacing to the expansion space of oil pipe, and when preventing from expanding excessive, oil pipe, towards after-contraction, falls off.
Brief description
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the transverse sectional view of connector of oil pipes of oil；
Fig. 2 is the longitudinal sectional view of connector of oil pipes of oil；
Fig. 3 is the horizontal section schematic diagram of drive block；
Fig. 4 is the side schematic view of drive block；
Fig. 5 is the structure total figure of the present invention；
Fig. 6 is the schematic diagram of spacing ring B；
In figure：1st, connector；2nd, spacing ring C；3rd, keyway A；4th, spacing ring A；, 5, keyway B；6th, spacing ring B；7th, drive block；8th, raised key；9th, promote key；10th, promote ring；11st, connection ring；12nd, fixture block；13rd, spacing garter spring；14th, annular protrusion；15th, sidesway block；16th, pressure-bearing plate；17th, flexible fastening ring.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, the basic structure of the present invention are only described in a schematic way, therefore it only shows the composition relevant with the present invention.
Embodiment 1
As shown in Fig. 1 ~ 6, this product is a kind of oil connection of self-expanding, and body is a columnar joint body, in a kind of one end of joint body low oil pressure dynamic swelling oil connection, including connecting portion, drive division, closure；
Described connecting portion includes joint body, and one end of joint body is provided with equipment connector 1, and the other end of joint body is provided with connector of oil pipes of oil, and described connector of oil pipes of oil includes a fixation surface for contacting with tube inner wall；
Described drive division includes being arranged on the drive block 7 of connector of oil pipes of oil inwall and promotes ring 10, described drive block 7 is hollow cylindrical, the outer wall annular array of drive block 7 is provided with some projection keys 8, the axis of described projection key 8 and the diameter parallel of drive block 7, it is additionally provided with promotion key 9 on the top of described projection key 8, the described upper surface promoting key 9 is an inclined-plane, it is connected by a connection ring 11 between described promotion ring 10 and drive block 7 end, the external diameter of described connection ring 11 is less than the external diameter of drive block 7, the described acute angle promoting key 9 is oriented to the side of drive block 7 dorsad connection ring 11；
In described connector of oil pipes of oil inwall, the side promoting ring 10 is provided with a spacing ring B6, the side dorsad promoting ring 10 in connector of oil pipes of oil inwall arranges restraining position ring block A4, restraining position ring block C2 is set between spacing ring B6 and spacing ring A4, the described outer wall of spacing ring C2 is fixedly connected with the inwall of connector of oil pipes of oil, the inwall of described spacing ring C2 and the outer wall of connection ring 11 are slidably connected, the internal diameter of described spacing ring C2 is less than the external diameter promoting ring 10, it is provided with an expansion spring between described promotion ring 10 and spacing ring B6, the afterbody that wherein equipment connector 1 is arranged on connector of oil pipes of oil is integral type structure, it is machined with the screw thread for being connected with oil-servicing facilities in the inwall of equipment connector 1；
It is provided with an annular protrusion 14 between described promotion ring and spacing ring C2，The section of described annular protrusion 14 is right angled triangle，One right-angle side of described annular protrusion 14 is located on the inwall of connector of oil pipes of oil，On the inwall of described drive block, annular array has some expanding blocks，Described expanding block includes pressure-bearing plate 16 and the sidesway block 15 of tile，The arc center of circle of the pressure-bearing plate 16 of tile is located on the axis of connector of oil pipes of oil，Sidesway block 15 is arranged on the side in the pressure-bearing plate 16 dorsad center of circle，In described connection ring, the fixed position annular array of corresponding expanding block is provided with some sliding trays，The section of described sidesway block 15 is all right angled triangle，The triangular ramp A of described sidesway block 15 is contacted through sliding tray with annular protrusion 14 triangular ramp B，When sidesway block 15 moves towards connector of oil pipes of oil inwall under the drive of pressure-bearing plate 16，There is relative slip with triangular ramp B in triangular ramp A，Thus promoting drive block to move towards spacing ring A4，In described pressure-bearing plate 16, the side in the center of circle is provided with the groove of one or more，It is fixed together by a flexible fastening ring 17 being embedded in each pressure-bearing plate 16 groove between described pressure-bearing plate 16；
Spacing ring B6 is connected with connector of oil pipes of oil inwall by screw thread；Dismantle for convenience, annular array is provided with some fixture blocks 12 on the internal face of spacing ring B6, by the special rotating spanner being provided with some keyways, with the cooperation of fixture block 12 array, realize adjustment and the dismounting of spacing ring B6；
Described connector of oil pipes of oil internal face, be located at and between spacing ring A4 and spacing ring C2, be additionally provided with the keyway A3 making linear slide for raised key 8, the top of keyway A3 is provided with the keyway B5 for promoting key 9 to slide, the height of described keyway B5 is less than the average height promoting key 9 inclined-plane, the length of described drive block 7 and the length difference of keyway A3 are L, and the length of described promotion ring 10 deducts the thickness of spacing ring C2 equal to L；
Position annular array between the corresponding spacing ring C2 and spacing ring A4 of described connector of oil pipes of oil outer wall is provided with some spring leafs, described spring leaf is fixed on the outer pars intramuralis of connector of oil pipes of oil by grafting, there is a rubber ring in the outer wrap of described spring chip arrays, in order to ensure the uniform of oil pipe stress under normal conditions, prevent oil pipe from being expanded for a long time and deform upon or aging, the maximum Diastolic Force of expansion spring is equal to the minimum deformation power of oil pipe wall；
It is additionally provided with one in the outer wall of connector of oil pipes of oil for oil pipe superficial expansion is carried out with spacing spacing garter spring, it is provided with the toroidal cavity for accommodating oil pipe wall, spacing garter spring is threadedly secured on the outer wall of connector of oil pipes of oil between described spacing garter spring and rubber ring.
During installation：
1st, spacing garter spring is removed on outer wall at the equipment connector 1 of joint body；
2nd, position-limited hoop ring set is connected on oil pipe；
3rd, oil pipe set is connected at the connector of oil pipes of oil outer wall of joint body；
4th, spacing garter spring is reinstalled on the outer wall of equipment connector 1；
5th, joint body is passed through being threadably secured on oil-servicing facilities at equipment connector 1.
When using, normal state at ordinary times（Oil pressure is in constant operation value）Under, oil pipe because being frictionally held on joint body of spacing garter spring and rubber ring, or when equipment because when oil pipe occurs bending equipment load-bearing excessive, oil pressure can occur larger floating（Oil pressure exceedes constant operation value and is even more than rated pressure value）When, promote ring 10 pressurized promotion drive block 7 to move along keyway A3（Direction is towards spacing ring A4）The now change of oil pressure can promote pressure-bearing plate 16 to move towards oil connection inwall direction, make to occur between triangular ramp A and triangular ramp B relatively to slide, wherein triangular ramp B is to fix, triangular ramp A is to slide, so drive block can be promoted to be moved, promotes key 9 to be synchronized with the movement simultaneously, promote key 9 that rubber ring is expanded so that the pressure between oil pipe and rubber ring and spacing garter spring increases（Frictional force increases）, thus dynamically increasing the fixing force between joint body and oil pipe, when preventing pressure excessive, oil pipe falls off.
When pressure recovery is to normal value, promote key 9 because the centripetal elasticity of oil pipe is so that promote key 9 to promote drive block 7 return, pressurized generation is aging or damaged for a long time to prevent oil pipe, improves the life-span of oil pipe.
By special rotating spanner, it is inserted into spacing ring B center, the groove making rotating spanner surface snaps onto in fixture block, rotary motion spanner, can achieve the dismounting to spacing ring B or adjustment, spacing ring B, towards during spacing ring A movement, can increase the precompressed of expansion spring, so that this joint adapts to the occasion of higher oil pressure.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff can carry out various change and modification completely in the range of without departing from this invention technological thought.The content that the technical scope of this invention is not limited on specification it is necessary to determine its technical scope according to right.
Claims (8)
1. a kind of low oil pressure dynamic swelling oil connection, is characterized in that：Including connecting portion, drive division, closure；
Described connecting portion includes joint body, and one end of joint body is provided with equipment connector, and the other end of joint body is provided with connector of oil pipes of oil, and described connector of oil pipes of oil includes a fixation surface for contacting with tube inner wall；
Described drive division includes being arranged on the drive block of connector of oil pipes of oil inwall and promotes ring, described drive block is hollow cylindrical, the outer wall annular array of drive block is provided with some projection keys, the axis of described projection key and the diameter parallel of drive block, it is additionally provided with promotion key on the top of described projection key, the described upper surface promoting key is an inclined-plane, it is connected by a connection ring between described promotion ring and drive block end, the external diameter of described connection ring is less than the external diameter of drive block, and the acute angle of described promotion key is oriented to the side of drive block dorsad connection ring；
In described connector of oil pipes of oil inwall, the side promoting ring is provided with a spacing ring B，The side dorsad promoting ring in connector of oil pipes of oil inwall arranges restraining position ring block A，Restraining position ring block C is set between spacing ring A and spacing ring B，The described outer wall of spacing ring C is fixedly connected with the inwall of connector of oil pipes of oil，The described inwall of spacing ring C and the outer wall of connection ring are slidably connected，The internal diameter of described spacing ring C is less than the external diameter promoting ring，It is provided with an expansion spring between described promotion ring and spacing ring B，It is provided with an annular protrusion between described promotion ring and spacing ring C，The section of described annular protrusion is right angled triangle，One right-angle side of described annular protrusion is located on the inwall of connector of oil pipes of oil，On the inwall of described drive block, annular array has some expanding blocks，Described expanding block includes pressure-bearing plate and the sidesway block of tile，The arc center of circle of the pressure-bearing plate of tile is located on the axis of connector of oil pipes of oil，Sidesway block is arranged on the side in the pressure-bearing plate dorsad center of circle，In described connection ring, the fixed position annular array of corresponding expanding block is provided with some sliding trays，The section of described sidesway block is all right angled triangle，The triangular ramp A of described sidesway block is contacted through sliding tray with annular protrusion triangular ramp B，When sidesway block moves towards connector of oil pipes of oil inwall under the drive of pressure-bearing plate，There is relative slip with triangular ramp B in triangular ramp A，Thus promoting drive block to move towards spacing ring A，In described pressure-bearing plate, the side in the center of circle is provided with the groove of one or more，It is fixed together by a flexible fastening ring being embedded in each pressure-bearing plate groove between described pressure-bearing plate；
Described connector of oil pipes of oil internal face, be located at and between spacing ring A and spacing ring C, be additionally provided with the keyway A making linear slide for raised key, the top of keyway A is provided with the keyway B for promoting key to slide, the height of described keyway B is less than the average height promoting key inclined-plane, the length of described drive block is L with the length difference of keyway A, and the length of described promotion ring deducts the thickness of spacing ring C equal to L；
Position annular array between the corresponding spacing ring C and spacing ring A of described connector of oil pipes of oil outer wall is provided with some flexible connection pieces, has a rubber ring in aforementioned flexible connection sheet outer wrap.
2. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 1, is characterized in that：Described spring leaf is spring leaf, and described spring leaf is plugged on connector of oil pipes of oil outer wall.
3. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 1, is characterized in that；Described equipment connector and connector of oil pipes of oil are integral type, and described equipment connector is located at the side of connector of oil pipes of oil afterbody, dorsad spacing ring A.
4. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 3, is characterized in that：Threaded end is arranged on the afterbody inwall of described connector of oil pipes of oil, described equipment connector is the aforesaid end of thread.
5. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 4, is characterized in that：Spacing ring B is connected with connector of oil pipes of oil inwall by screw thread.
6. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 1, is characterized in that：On the internal face of described spacing ring B, annular array is provided with some fixture blocks.
7. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 1, is characterized in that：The maximum Diastolic Force of described expansion spring is equal to the minimum deformation power of oil pipe wall.
8. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 1, is characterized in that：The outer wall of described connector of oil pipes of oil is additionally provided with one for carrying out spacing spacing garter spring to oil pipe superficial expansion, is provided with the toroidal cavity for accommodating oil pipe wall between described spacing garter spring and rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410644668.XA CN104534218B (en) | 2014-11-14 | 2014-11-14 | Dynamic expansion oil pipe joint for low oil pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410644668.XA CN104534218B (en) | 2014-11-14 | 2014-11-14 | Dynamic expansion oil pipe joint for low oil pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104534218A CN104534218A (en) | 2015-04-22 |
| CN104534218B true CN104534218B (en) | 2017-02-08 |
Family
ID=52849804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410644668.XA Expired - Fee Related CN104534218B (en) | 2014-11-14 | 2014-11-14 | Dynamic expansion oil pipe joint for low oil pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104534218B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826449B (en) * | 2019-03-15 | 2023-11-10 | 程帅奇 | Inserted steel structure hole aligning equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6716152A (en) * | 1966-12-01 | 1968-06-04 | ||
| GB1143668A (en) * | 1966-12-12 | 1969-02-26 | Hepworth Iron Co Ltd | Improvements in or relating to clayware piping |
| US3674292A (en) * | 1969-10-15 | 1972-07-04 | Amp Inc | Tubular connection devices |
| JP2003214584A (en) * | 2002-01-22 | 2003-07-30 | Nitto Kohki Co Ltd | Tube coupling |
| CA2483173A1 (en) * | 2003-10-03 | 2005-04-03 | Inoue Sudare Co., Ltd. | Pipe joint |
| DE102007059329A1 (en) * | 2006-12-11 | 2008-06-19 | Johannes Schäfer vorm. Stettiner Schraubenwerke GmbH & Co. KG | Plug-in connector for piping, has spring unit arranged between radial shoulder and outer part, and retaining unit pushed out from recess at spigot or in opening of outer part in locking position, so that spigot is detached from outer part |
| CN102691836A (en) * | 2011-03-22 | 2012-09-26 | 安隆化成株式会社 | Pipe joint |
| CN103988009A (en) * | 2011-08-22 | 2014-08-13 | 维克托里克公司 | Expansion joint |
-
2014
- 2014-11-14 CN CN201410644668.XA patent/CN104534218B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6716152A (en) * | 1966-12-01 | 1968-06-04 | ||
| GB1143668A (en) * | 1966-12-12 | 1969-02-26 | Hepworth Iron Co Ltd | Improvements in or relating to clayware piping |
| US3674292A (en) * | 1969-10-15 | 1972-07-04 | Amp Inc | Tubular connection devices |
| JP2003214584A (en) * | 2002-01-22 | 2003-07-30 | Nitto Kohki Co Ltd | Tube coupling |
| CA2483173A1 (en) * | 2003-10-03 | 2005-04-03 | Inoue Sudare Co., Ltd. | Pipe joint |
| DE102007059329A1 (en) * | 2006-12-11 | 2008-06-19 | Johannes Schäfer vorm. Stettiner Schraubenwerke GmbH & Co. KG | Plug-in connector for piping, has spring unit arranged between radial shoulder and outer part, and retaining unit pushed out from recess at spigot or in opening of outer part in locking position, so that spigot is detached from outer part |
| CN102691836A (en) * | 2011-03-22 | 2012-09-26 | 安隆化成株式会社 | Pipe joint |
| CN103988009A (en) * | 2011-08-22 | 2014-08-13 | 维克托里克公司 | Expansion joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104534218A (en) | 2015-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10066446B2 (en) | Tapered spline connection for drill pipe, casing, and tubing | |
| EP1802907B1 (en) | Method for manufacturing a tubular connection | |
| US10006255B2 (en) | Tapered spline connection for drill pipe, casing, and tubing | |
| US20070200299A1 (en) | Spring/seal element | |
| AU2014270449B2 (en) | Assembly for producing a threaded connection for drilling and operating hydrocarbon wells, and resulting threaded connection | |
| WO2012059469A3 (en) | Expandable packer | |
| US4720113A (en) | Multilayer, multihardness seal | |
| CN108301804B (en) | Slip expansion type deepwater packer | |
| CN104534218B (en) | Dynamic expansion oil pipe joint for low oil pressure | |
| CN104405987B (en) | A kind of high sensitivity dynamic swelling oil connection | |
| CN104455814B (en) | A kind of dynamic swelling oil connection | |
| EP1292791B1 (en) | Tubular connection floating shoulder ring | |
| CN104455831B (en) | A kind of self-expanding connector of oil pipes of oil and its application method | |
| WO2017001496A1 (en) | Expanding well tubulars interconnected by pin-box assemblies optimized for expansion | |
| CN104534201B (en) | A kind of fast disassembly type dynamic swelling oil connection | |
| CN102937008A (en) | Top multistage pressure-bearing expansion pipe expansion construction device | |
| CN109441365A (en) | A kind of link formula ocean threaded drillpipe | |
| CN111663907B (en) | Heat-preservation type lining underground tubing coupling and installation method thereof | |
| MX2015000498A (en) | High pressure seal back-up. | |
| CN202937212U (en) | Top multistage pressure bearing type expandable construction device for expandable pipes | |
| CN219933351U (en) | Portable plugging mechanism for pipeline construction | |
| CN204532230U (en) | The protective device of packing element | |
| CN215672128U (en) | Subminiature soluble bridge plug assembly | |
| CN101592275A (en) | A kind of pipeline axial force elimination type pipe fitting | |
| CN202252482U (en) | Water feed expansion joint with internal screw thread |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Feng Inventor after: Guo Naihong Inventor before: Qian Guodong |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161021 Address after: 224042 Dagang Town of Jiangsu province Yancheng City salt District Metallurgical Industrial Park Applicant after: YANCHENG XIONGYING PRECISION MACHINERY Co.,Ltd. Address before: 214000 Huang Xing Road, Zhengyang village, Wuxi, Xishan District, Jiangsu, China Applicant before: WUXI LEHUA AUTOMATION TECHNOLOGY Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 |