CN104455814B - A kind of dynamic swelling oil connection - Google Patents
A kind of dynamic swelling oil connection Download PDFInfo
- Publication number
- CN104455814B CN104455814B CN201410644783.7A CN201410644783A CN104455814B CN 104455814 B CN104455814 B CN 104455814B CN 201410644783 A CN201410644783 A CN 201410644783A CN 104455814 B CN104455814 B CN 104455814B
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- CN
- China
- Prior art keywords
- oil
- ring
- spacing ring
- connector
- spacing
- 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
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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
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
Abstract
The present invention relates to a kind of dynamic swelling oil connection, the invention mainly comprises oil connection body and be arranged on the intrinsic drive block of oil connection, some prominent promotion keys with oil connection body wall it are provided with on drive block, promotion key surface is inclined-plane, when oil pressure increases, promote key to be moved, promote key that the rubber ring being coated on oil connection body outer wall can be driven to expand while movement, thus increase the adhesion of oil connection and oil pipe wall.
Description
Technical field
The present invention relates to a kind of dynamic swelling oil connection, belong to oil pressure unit fuel feed pump joint field.
Background technology
Along with present industrial development is increasingly faster, maximization equipment also gets more and more, and in the field of many drivings or heavy burden, the use of hydraulic pressure is widely；
First, in building field, in order to reduce the construction site impact (dust that such as cement flour brings) on local environment, the most all use the place beyond building site to carry out prefabricated component, then moved to assemble on construction site by big machinery；
Furthermore in mineral products industry, the demand of colliery and building stones is the most increasing now, traditional small-sized excavation mechinery can not meet present demand, and if locality produces and builds relevant device, though can be cost-effective, but the duration can be extended greatly, so present a lot of large-scale mineral reserve equipment is all after producing elsewhere, be transported to by big machinery and assemble on building site；
In above-mentioned operating mode, it is required for using the hydraulic pressure weight lifting machinery than relatively large, this kind of large hydraulic machinery is the highest for stability and the pressure-bearing property requirement of oil connection, so the pressure-bearing property of oil pipe and oil connection directly determines the load-bearing property of hydraulic pressure weight lifting machinery；
nullZL201110074024.8 propose a kind of can be with the pipe joint of straight cutting，Pipeline wall is locked by this oil connection 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，Duct wall can be caused certain damage by ratchet itself，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 this open source literature，Its sealability is determined by the hardness of pipeline and the hardness of ratchet and density，Its sealing force cannot be reacted along with increasing suddenly of oil pressure，(sealing force of himself 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 toleration of environment，When the feelings that the impurity such as sandy soil are more，Whole locking mechanism is easy to occur stuck；
For another example the oil connection that ZL201220170360.2 is previously mentioned, wherein use double socket joint type and employ a Clip Reed and be fixed, in the range of the pressure-bearing of Clip Reed, because opposing force, along 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, and Clip Reed still can fall off, and causes danger.
Summary 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, it is provided that a kind of oil connection that can automatically adjust tightness according to tubing pressure.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of 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 union joint, and the other end at joint body is provided with connector of oil pipes of oil, and described connector of oil pipes of oil includes one for the fixing surface contacted with tube inner wall；
Described drive division includes the drive block being arranged on connector of oil pipes of oil inwall and promotes ring, described drive block is hollow cylindrical, outer wall annular array at drive block is provided with some protruding keys, the axis of described protruding key is parallel with the axis of drive block, it is additionally provided with promotion key on the top of described protruding key, the upper surface of described promotion key is an inclined-plane, it is connected ring by one between described promotion ring and drive block end to connect, 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 drive block and connects the side of ring dorsad；
At described connector of oil pipes of oil inwall, the side promoting ring is provided with a spacing ring B, the side of ring is promoted to be provided with spacing ring A dorsad at connector of oil pipes of oil inwall, spacing ring C it is provided with between spacing ring A and spacing ring B, the outer wall of described spacing ring C is fixing with the inwall of oil connection to be connected, the inwall of described spacing ring C is slidably connected with the outer wall being connected ring, the internal diameter of described spacing ring C, less than the external diameter of promotion ring, is provided with an expansion spring between described promotion ring and spacing ring B；
At the internal face of described oil connection, between spacing ring A and spacing ring C, it is additionally provided with the keyway A supplying protruding key to make linear slide, the keyway B for promoting key to slide it is provided with on the top of keyway A, 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 described connector of oil pipes of oil outer wall correspondence spacing ring C and spacing ring A is provided with some flexible connection pieces, and the outer wrap at described flexible connection piece array has a rubber ring.
As the further innovation of the present invention, described flexible connection piece is spring leaf, and described spring leaf is plugged on connector of oil pipes of oil outer wall.
As the further innovation of the present invention, described equipment union joint and connector of oil pipes of oil are integral type, and described equipment union joint is positioned at the side of connector of oil pipes of oil afterbody, dorsad spacing ring A.
As the further innovation of the present invention, being provided with screw thread on the afterbody inwall of described connector of oil pipes of oil, described equipment union joint is the aforesaid end of thread.
As the further innovation of the present invention, spacing ring B is connected with connector of oil pipes of oil inwall by screw thread.
As the further innovation of the present invention, on the internal face of described spacing ring B, annular array is provided with some fixture blocks.
As the further innovation 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 further innovation of the present invention, the outer wall of described connector of oil pipes of oil be additionally provided with one for oil pipe superficial expansion being carried out spacing spacing garter spring, be 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:
1, the present invention is by a drive division driven by fluid pressure, pass through fluid pressure, the promotion key of drive division outer surface drives rubber ring outward expansion, thus increase the bed knife between tube inner wall and connector of oil pipes of oil, drive division can use metal to make, no matter pressure is much, and the pressure-bearing limit of joint is all determined by the limit of expansion of oil pipe；Oil pipe is intrinsic pressure the biggest simultaneously, and the displacement of drive division is the biggest so that the adhesion between tube inner wall and rubber ring is the biggest, and when can effectively prevent oil pressure from increasing suddenly, connector of oil pipes of oil exceedes the danger that design standard failure causes；The present invention is after pressure reduces simultaneously, by flexible connection piece, so that drive division return, after preventing oil pipe from expanding for a long time, occurs aging or damaged.
2, the flexure strip of the present invention is the spring leaf of plug-in type, can be conveniently replaceable, and improves the ruggedness of joint, reduces maintenance cost.
3, the equipment union joint of integral type and connector of oil pipes of oil can improve resistance to compression and the leakageresistance of joint further.
4, the connector of screw-type connects convenient and stable.
5, spacing ring is threadably secured, in that context it may be convenient to dismantled by drive block, can regulate the precompressed value of expansion spring easily simultaneously.
6, the internal face at spacing ring is provided with some fixture blocks, by the sleeve corresponding with fixture block, in that context it may be convenient to spacing ring is adjusted.
7, 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.
8, the expansion space of oil pipe can be carried out spacing by the spacing garter spring of the present invention, and when preventing expanding excessive, oil pipe, towards after-contraction, falls off.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
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 that the structure of the present invention is always schemed；
Fig. 6 is the schematic diagram of spacing ring A；
In figure: 1, union joint；2, spacing ring C；3, keyway A；4, spacing ring A；, 5, keyway B；6, spacing ring B；7, drive block；8, protruding key；9, key is promoted；10, ring is promoted；11, ring is connected；12, fixture block；13, spacing garter spring.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
Embodiment 1
As shown in Fig. 1 ~ 6, this product is the oil connection of a kind of self-expanding, and body is a columnar joint body, at one end one dynamic swelling oil connection of joint body, including connecting portion, drive division, closure；
Described connecting portion includes joint body, and one end of joint body is provided with equipment union joint 1, and the other end at joint body is provided with connector of oil pipes of oil, and described connector of oil pipes of oil includes one for the fixing surface contacted with tube inner wall；
Described drive division includes the drive block 7 being arranged on connector of oil pipes of oil inwall and promotes ring 10, described drive block 7 is hollow cylindrical, outer wall annular array at drive block 7 is provided with some protruding keys 8, the axis of described protruding key 8 is parallel with the axis of drive block 7, it is additionally provided with promotion key 9 on the top of described protruding key 8, the upper surface of described promotion key 9 is an inclined-plane, it is connected ring 11 by one between described promotion ring 10 with drive block 7 end to connect, the external diameter of described connection ring 11 is less than the external diameter of drive block 7, the acute angle of described promotion key 9 is oriented to drive block 7 and connects the side of ring 11 dorsad；
At described connector of oil pipes of oil inwall, the side promoting ring 10 is provided with a spacing ring B6, the side of ring 10 is promoted to be provided with spacing ring A4 dorsad at connector of oil pipes of oil inwall, spacing ring C2 it is provided with between spacing ring B6 and spacing ring A4, the outer wall of described spacing ring C2 is fixing with the inwall of oil connection to be connected, the inwall of described spacing ring C2 is slidably connected with the outer wall being connected ring 11, the internal diameter of described spacing ring C2 is less than the external diameter promoting ring 10, an expansion spring it is provided with between described promotion ring 10 and spacing ring B6, wherein equipment union joint 1 is arranged on the afterbody of connector of oil pipes of oil is integral type structure, inwall at equipment union joint 1 is machined with the screw thread for being connected with oil-servicing facilities；
Spacing ring B6 is connected with connector of oil pipes of oil inwall by screw thread；Dismantling for convenience, on the internal face of spacing ring B6, annular array is provided with some fixture blocks 12, by the special rotating spanner being provided with some keyways, coordinates with fixture block 12 array, it is achieved the adjustment of spacing ring and dismounting；
At the internal face of described oil connection, between spacing ring A4 and spacing ring C2, it is additionally provided with the keyway A3 supplying protruding key 8 to make linear slide, the keyway B5 for promoting key 9 to slide it is provided with on the top of keyway A3, 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 described connector of oil pipes of oil outer wall correspondence spacing ring C2 and spacing ring A4 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, outer wrap at described flexible connection piece array has a rubber ring, in order to ensure the uniform of oil pipe stress under normal conditions, preventing 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；
Outer wall at connector of oil pipes of oil is additionally provided with one for oil pipe superficial expansion carries out spacing spacing garter spring, being provided with the toroidal cavity for accommodating oil pipe wall between described spacing garter spring and rubber ring, spacing garter spring is threadedly secured on the outer wall of connector of oil pipes of oil.
During installation:
1, spacing garter spring is removed on outer wall at the equipment union joint 1 of joint body；
2, position-limited hoop ring set is received on oil pipe；
3, oil pipe set is received at the connector of oil pipes of oil outer wall of joint body；
4, spacing garter spring is reinstalled on the outer wall of equipment union joint 11；
5, by joint body by being threadably secured on oil-servicing facilities at equipment equipment union joint 1.
In use, at ordinary times under normal state (oil pressure is in constant operation value), oil pipe is because being frictionally held on joint body of spacing garter spring and rubber ring, during when equipment because or oil pipe occurs bending equipment load-bearing excessive, when oil pressure can occur bigger floating (oil pressure exceedes constant operation value and is even more than rated pressure value), ring 10 pressurized is promoted to promote drive block 7 to move (direction towards spacing ring A4) along keyway A3, key 9 is now promoted to be synchronized with the movement, promote key 9 that rubber ring is expanded, the pressure between oil pipe and rubber ring and spacing garter spring is made to increase (frictional force increase), thus increase the bed knife between joint body and oil pipe dynamically, when preventing pressure excessive, oil pipe falls off.
When pressure recovery to normal value, promote key 9 because the centripetal elasticity of oil pipe so that promote key 9 to promote drive block 7 return, prevent the long-time pressurized of oil pipe from occurring aging or damaged, improve 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, the dismounting to spacing ring B or adjustment can be realized, spacing ring B towards spacing ring A move time, the precompressed of expansion spring can be increased so that this joint adapt to higher oil pressure occasion.
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 amendment completely in the range of without departing from this invention technological thought.The content that the technical scope of this invention is not limited in description, it is necessary to determine its technical scope according to right.
Claims (8)
1. a dynamic swelling oil connection, including connecting portion, drive division, closure；Described connecting portion includes joint body, one end of joint body is provided with equipment union joint, the other end at joint body is provided with connector of oil pipes of oil, described connector of oil pipes of oil includes one for the fixing surface contacted with tube inner wall, it is characterized in that: 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, outer wall annular array at drive block is provided with some protruding keys, the axis of described protruding key is parallel with the axis of drive block, it is additionally provided with promotion key on the top of described protruding key, the upper surface of described promotion key is an inclined-plane, it is connected ring by one between described promotion ring and drive block end to connect, the external diameter of described connection ring is less than the external diameter of drive block, the acute angle of described promotion key is oriented to drive block and connects the side of ring dorsad；At described connector of oil pipes of oil inwall, the side promoting ring is provided with a spacing ring B, the side of ring is promoted to be provided with spacing ring A dorsad at connector of oil pipes of oil inwall, spacing ring C it is provided with between spacing ring A and spacing ring B, the outer wall of described spacing ring C is fixing with the inwall of oil connection to be connected, the inwall of described spacing ring C is slidably connected with the outer wall being connected ring, the internal diameter of described spacing ring C, less than the external diameter of promotion ring, is provided with an expansion spring between described promotion ring and spacing ring B；At the internal face of described oil connection, between spacing ring A and spacing ring C, it is additionally provided with the keyway A supplying protruding key to make linear slide, the keyway B for promoting key to slide it is provided with on the top of keyway A, 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 described connector of oil pipes of oil outer wall correspondence spacing ring C and spacing ring A is provided with some flexible connection pieces, and the outer wrap at described flexible connection piece array has a rubber ring.
2. a kind of dynamic swelling oil connection as described in claim 1, is characterized in that: described flexible connection piece is spring leaf, described spring leaf is plugged on connector of oil pipes of oil outer wall.
3. a kind of dynamic swelling oil connection as described in claim 1, is characterized in that；Described equipment union joint and connector of oil pipes of oil are integral type, and described equipment union joint is positioned at the side of connector of oil pipes of oil afterbody, dorsad spacing ring A.
4. a kind of dynamic swelling oil connection as described in claim 3, is characterized in that: be provided with screw thread on the afterbody inwall of described connector of oil pipes of oil, and described equipment union joint is the aforesaid end of thread.
5. a kind of dynamic swelling oil connection as described 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 dynamic swelling oil connection as described 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 dynamic swelling oil connection as described 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 dynamic swelling oil connection as described in claim 1, it is characterized in that: the outer wall of described connector of oil pipes of oil be additionally provided with one for oil pipe superficial expansion being carried out spacing spacing garter spring, be 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 |
|---|---|---|---|
| CN201410644783.7A CN104455814B (en) | 2014-11-14 | 2014-11-14 | A kind of dynamic swelling oil connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410644783.7A CN104455814B (en) | 2014-11-14 | 2014-11-14 | A kind of dynamic swelling oil connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455814A CN104455814A (en) | 2015-03-25 |
| CN104455814B true CN104455814B (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410644783.7A Expired - Fee Related CN104455814B (en) | 2014-11-14 | 2014-11-14 | A kind of dynamic swelling oil connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455814B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892205A (en) * | 2018-07-30 | 2018-11-27 | 刘玉友 | A kind of application method of the no filtrate sewage-treatment plant of oil field gathering and transportation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05296379A (en) * | 1992-04-23 | 1993-11-09 | Matsushita Electric Works Ltd | Pipe coupling |
| GB0024278D0 (en) * | 2000-10-04 | 2000-11-15 | Bsw Ltd | A device for gripping a pipe or bar |
| WO2006112604A1 (en) * | 2005-04-22 | 2006-10-26 | Andong Zion Foudation Of Social Welfare Facilities | Rubber packing for pipe connection |
| CN201293160Y (en) * | 2008-10-08 | 2009-08-19 | 书元机械企业(昆山)有限公司 | Seal ring for pipe fitting sealing connection |
| CN102691836B (en) * | 2011-03-22 | 2015-12-16 | 安隆化成株式会社 | Pipe joint |
| CN202532059U (en) * | 2012-04-20 | 2012-11-14 | 南京肯特复合材料有限公司 | Oil pipe joint |
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2014
- 2014-11-14 CN CN201410644783.7A patent/CN104455814B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104455814A (en) | 2015-03-25 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190109 Address after: 213000 Room 7 of Xintai Standard Factory Building of Changfeng Village, Dingyan Street, Wujin District, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU HAITONG PETROLEUM TUBE Co.,Ltd. Address before: 214000 Huang Xing Road, Zhengyang village, Northeast Village, Xishan District, Wuxi, Jiangsu Patentee before: WUXI LEHUA AUTOMATION TECHNOLOGY Co.,Ltd. |
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| 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: 20161130 Termination date: 20211114 |