CN104534218A - Dynamic expansion oil pipe joint for low oil pressure - Google Patents
Dynamic expansion oil pipe joint for low oil pressure Download PDFInfo
- Publication number
- CN104534218A CN104534218A CN201410644668.XA CN201410644668A CN104534218A CN 104534218 A CN104534218 A CN 104534218A CN 201410644668 A CN201410644668 A CN 201410644668A CN 104534218 A CN104534218 A CN 104534218A
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- Prior art keywords
- oil
- ring
- connector
- pressure
- limited ring
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- 230000008961 swelling Effects 0.000 claims description 13
- 230000001737 promoting effect Effects 0.000 claims description 7
- 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 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 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
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process 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
- 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
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002689 soil Substances 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
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 supply line joint field.
Background technique
Along with present industrial development is more and more faster, maximization equipment also gets more and more, and in the field of many drivings or heavy burden, the use of hydraulic pressure widely;
First in building field, in order to reduce the impact (dust that such as cement flour brings) of building site on local environment, generally all adopting the place beyond building site to carry out prefabricated component now, then being moved on building site by big machinery and assemble;
Moreover in mineral products industry, the demand of present colliery and building stones is also increasing, traditional small-sized excavation mechinery can not meet present demand, and the words of building relevant device are produced in locality, though can cost be saved, but the duration can be extended greatly, so present a lot of large-scale mineral reserve equipment is all after other local productions, is transported on building site by big machinery and assembles;
In above-mentioned operating mode, all need to use than relatively large hydraulic pressure weight lifting machinery, this kind of mechanical stability for oil connection of large hydraulic and pressure-bearing property require very high, 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 the pipe coupling 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 greater than the hardness of pipe surface, ratchet itself can cause certain damage to tube 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 coupling 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 the unexpected increase of oil pressure, (sealing force of himself cannot be increased while oil pressure increases), once oil pressure exceedes scope of design suddenly, pipeline rupture will be produced or come off, once the oil pressure of weight lifting equipment is lost, will related generation accident, said structure more complicated simultaneously, part is more, can be poor to the tolerance of environment, when the feelings that the impurity such as sandy soil are more, it is stuck that whole locking mechanism is easy to generation,
For another example the oil connection mentioned of ZL201220170360.2, wherein adopt two socket joint type and employ a Clip Reed and be fixed, within the scope of the pressure-bearing of Clip Reed, because opposing force, along with the expansion of oil pipe, its sealing force can improve gradually, but its pressure-bearing scope is still subject to the restriction of Clip Reed, once pressure is excessive, Clip Reed still can come 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, more existing dynamic swelling joint requirements to oil pressure are simultaneously higher, be not suitable for the working environment that sensitivity requirement is higher, a kind of oil connection that automatically can adjust tightness according to tubing pressure is provided.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of low oil pressure dynamic swelling oil connection, comprises joint, drive portion, closure;
Described joint comprises joint body, and one end of joint body is provided with equipment connection head, and the other end of joint body is provided with connector of oil pipes of oil, and described connector of oil pipes of oil comprises a fixed surface for contacting with tube inner wall;
Described drive portion comprises the driving block and pushing ring that are arranged on connector of oil pipes of oil inwall, described driving block is hollow cylindrical, the outer wall annular array of driving block is provided with some protruding keys, the described axis of protruding key and the axis being parallel of driving block, promotion key is also provided with on the top of described protruding key, the upper surface of described promotion key is an inclined-plane, be connected by a connecting ring between described pushing ring with driving block end, the external diameter of described connecting ring is less than the external diameter of driving block, and the acute angle of described promotion key is oriented to the side of driving block connecting ring dorsad;
At described connector of oil pipes of oil inwall, the side of pushing ring is provided with a limited ring B, the side of connector of oil pipes of oil inwall pushing ring is dorsad provided with limited ring A, limited ring C is provided with between limited ring A and limited ring B, the described outer wall of limited ring C is fixedly connected with the inwall of oil connection, the described inwall of limited ring C and the outer wall of connecting ring are slidably connected, the internal diameter of described limited ring C is less than the external diameter of pushing ring, an expansion spring is provided with between described pushing ring and limited ring B, an annular protrusion is provided with between described pushing ring and limited ring C, the cross section of described annular protrusion is right-angled triangle, a right angle side of described annular protrusion is positioned on the inwall of oil connection, on the inwall of described driving block, annular array has some expanding blocks, described expanding block comprises pressure-bearing plate and the sidesway block of tile, the arc center of circle of the pressure-bearing plate of tile is positioned on the axis of oil connection, sidesway block is arranged on the side in the pressure-bearing plate center of circle dorsad, on described connecting ring, the fixed position annular array of corresponding expanding block is provided with some sliding-grooves, the cross section of described sidesway block is all right-angled triangle, the triangular ramp A of described sidesway block contacts with annular protrusion triangular ramp B through sliding-groove, when moving towards connector of oil pipes of oil inwall under the drive of sidesway block at pressure-bearing plate, there is relative sliding in triangular ramp A and triangular ramp B, thus promotion driving block moves towards limited ring A, be provided with the groove of one or more towards the side in the center of circle at described pressure-bearing plate, the flexible fastening ring be embedded in each pressure-bearing plate groove by one between described pressure-bearing plate is fixed together,
At the internal face of described oil connection, between limited ring A and limited ring C, be also provided with the keyway A making linear slide for protruding key, the keyway B for promoting key slip 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 driving block and the length difference of keyway A are L, and the length of described pushing ring equals the thickness that L deducts limited ring C;
Position annular array between the corresponding limited ring C and limited ring A of described connector of oil pipes of oil outer wall is provided with some flexible connection pieces, has a rubber ring in the outer wrap of described flexible connection piece array.
As further innovation of the present invention, described flexible connection piece is spring sheet, and described spring sheet is plugged on connector of oil pipes of oil outer wall.
As further innovation of the present invention, described equipment connection head and connector of oil pipes of oil are integral type, and described equipment connection head is positioned at the side of connector of oil pipes of oil afterbody, dorsad limited ring A.
As further innovation of the present invention, the afterbody inwall of described connector of oil pipes of oil is provided with screw thread, described equipment connection head is aforesaid threaded end.
As further innovation of the present invention, limited ring B is connected with connector of oil pipes of oil inwall by screw thread.
As further innovation of the present invention, on the internal face of described limited ring B, annular array is provided with some fixture blocks.
As further innovation of the present invention, the maximum Diastolic Force of described expansion spring equals the minimum deformation power of oil pipe wall.
As further innovation of the present invention, the outer wall of described connector of oil pipes of oil is also provided with one for carrying out spacing spacing garter spring to oil pipe superficial expansion, is provided with the toroidal cavity for holding oil pipe wall between described spacing garter spring and rubber ring.
The invention has the beneficial effects as follows:
1, the drive portion that driven by fluid pressure by one of the present invention, pass through fluid pressure, promote pressure-bearing plate, make, between triangular ramp A and triangular ramp B, relative sliding occurs, drive portion is moved, the promotion key of drive portion outer surface drives rubber ring outwards to expand, thus the retention force increased between tube inner wall and connector of oil pipes of oil, drive portion can adopt metal to make, and no matter pressure is much, and the pressure-bearing limit of joint is all determined by the limit of expansion of oil pipe; Simultaneously pressure-bearing plate is larger compared to the pressure-bearing surface of contact of pushing block, so comparatively in low oil pressure situation, just can realize the driving of drive portion; The present invention is simultaneously after pressure reduces, and by flexible connection piece, can make drive portion return, after preventing oil pipe from expanding for a long time, occur aging or damaged, pressure-bearing plate can improve integrally-built pressure sensitivity.
2, spring sheet of the present invention is the spring sheet of plug-in type, so that change, can improve the serviceability of joint, reduce maintenance cost.
3, the equipment connection head of integral type and connector of oil pipes of oil can improve resistance to compression and the leak resistance of joint further.
4, the connection mouth connection of thread type is convenient and stable.
5, limited ring is fixed by screw thread, can be dismantled by driving block easily, can regulate the precompressed value of expansion spring easily simultaneously.
6, the internal face of limited ring is provided with some fixture blocks, by the sleeve corresponding with fixture block, can adjusts by limited ring easily.
7, the maximum Diastolic Force of expansion spring equals the minimum deformation power of oil pipe wall, when oil pressure is constant, oil pipe wall can be made to be in relaxation state, improves durability and the life-span of oil pipe.
8, 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 aftershrinkage, comes off.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
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 driving block;
Fig. 4 is the side schematic view of driving block;
Fig. 5 is that structure of the present invention is always schemed;
Fig. 6 is the schematic diagram of limited ring A;
In figure: 1, connecting head; 2, limited ring C; 3, keyway A; 4, limited ring A; , 5, keyway B; 6, limited ring B; 7, driving block; 8, protruding key; 9, key is promoted; 10, pushing ring; 11, connecting ring; 12, fixture block; 13, spacing garter spring; 14, annular protrusion; 15, sidesway block; 16, pressure-bearing plate; 17, flexible fastening ring.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation 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, and in one end of joint body, a kind of low oil pressure dynamic swelling oil connection, comprises joint, drive portion, closure;
Described joint comprises joint body, and one end of joint body is provided with equipment connection head 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 comprises a fixed surface for contacting with tube inner wall;
Described drive portion comprises the driving block 7 and pushing ring 10 that are arranged on connector of oil pipes of oil inwall, described driving block 7 is hollow cylindrical, the outer wall annular array of driving block 7 is provided with some protruding keys 8, the axis of described protruding key 8 and the axis being parallel of driving block 7, also be provided with on the top of described protruding key 8 and promote key 9, the upper surface of described promotion key 9 is an inclined-plane, be connected by a connecting ring 11 between described pushing ring 10 with driving block 7 end, the external diameter of described connecting ring 11 is less than the external diameter of driving block 7, the acute angle of described promotion key 9 is oriented to the side of driving block 7 connecting ring 11 dorsad,
At described connector of oil pipes of oil inwall, the side of pushing ring 10 is provided with a limited ring B6, the side of connector of oil pipes of oil inwall pushing ring 10 is dorsad provided with limited ring A4, limited ring C2 is provided with between limited ring B6 and limited ring A4, the described outer wall of limited ring C2 is fixedly connected with the inwall of oil connection, the inwall of described limited ring C2 and the outer wall of connecting ring 11 are slidably connected, the internal diameter of described limited ring C2 is less than the external diameter of pushing ring 10, an expansion spring is provided with between described pushing ring 10 and limited ring B6, wherein equipment connection head 1 is arranged on the afterbody of connector of oil pipes of oil is integral type structure, the screw thread for being connected with oil-servicing facilities is processed with at the inwall of equipment connection head 1,
An annular protrusion 14 is provided with between described pushing ring and limited ring C2, the cross section of described annular protrusion 14 is right-angled triangle, a right angle side of described annular protrusion 14 is positioned on the inwall of oil connection, on the inwall of described driving block, annular array has some expanding blocks, described expanding block comprises 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 positioned on the axis of oil connection, sidesway block 15 is arranged on the side in pressure-bearing plate 16 center of circle dorsad, on described connecting ring, the fixed position annular array of corresponding expanding block is provided with some sliding-grooves, the cross section of described sidesway block 15 is all right-angled triangle, the triangular ramp A of described sidesway block 15 contacts with annular protrusion 14 triangular ramp B through sliding-groove, when sidesway block 15 moves towards connector of oil pipes of oil inwall under the drive of pressure-bearing plate 16, there is relative sliding in triangular ramp A and triangular ramp B, thus promotion driving block moves towards limited ring A4, be provided with the groove of one or more towards the side in the center of circle at described pressure-bearing plate 16, the flexible fastening ring 17 be embedded in each pressure-bearing plate 16 groove by one between described pressure-bearing plate 16 is fixed together,
Limited ring B6 is connected with connector of oil pipes of oil inwall by screw thread; Conveniently dismantle, on the internal face of limited 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, realizes adjustment and the dismounting of limited ring;
At the internal face of described oil connection, between limited ring A4 and limited ring C2, be also provided with the keyway A3 making linear slide for protruding key 8, the keyway B5 for promoting key 9 slip 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 driving block 7 and the length difference of keyway A3 are L, and the length of described pushing ring 10 equals the thickness that L deducts limited ring C2;
Position annular array between the corresponding limited ring C2 and limited ring A4 of described connector of oil pipes of oil outer wall is provided with some spring sheets, described spring sheet is fixed on the outer pars intramuralis of connector of oil pipes of oil by grafting, a rubber ring is had in the outer wrap of described flexible connection piece array, in order to ensure that oil pipe is stressed even under normal conditions, prevent oil pipe from being expanded for a long time and deformation or aging occurs, the maximum Diastolic Force of expansion spring equals the minimum deformation power of oil pipe wall;
One is also provided with for carrying out spacing spacing garter spring to oil pipe superficial expansion at the outer wall of connector of oil pipes of oil, be provided with the toroidal cavity for holding oil pipe wall between described spacing garter spring and rubber ring, spacing garter spring is fixed on the outer wall of connector of oil pipes of oil by screw thread.
During installation:
1, equipment connection head 1 outer wall of spacing garter spring from joint body is removed;
2, position-limited hoop ring set is received on oil pipe;
3, oil pipe cover is received the connector of oil pipes of oil outer wall place of joint body;
4, spacing garter spring is reinstalled on the outer wall of equipment connection head 11;
5, the screw thread of joint body by equipment equipment connection head 1 place is fixed on oil-servicing facilities.
In use, at ordinary times under normal state (oil pressure is in constant operation value), oil pipe is because the frictional force of spacing garter spring and rubber ring is fixed on joint body, when equipment because when or the load-bearing of oil pipe generation bending equipment is excessive, when can there is larger floating (oil pressure exceedes constant operation value and even exceedes rated pressure value) in oil pressure, pushing ring 10 pressurized promotes driving block 7 and moves (direction is towards limited ring A4) along keyway A3, the now change of oil pressure can promote pressure-bearing plate 16 and move towards oil connection inwall direction, make, between triangular ramp A and triangular ramp B, relative sliding occurs, wherein triangular ramp B is fixing, triangular ramp A is for sliding, be moved so driving block can be promoted, promote key 9 to be synchronized with the movement simultaneously, promoting key 9 makes rubber ring expand, make oil pipe and the pressure increase between rubber ring and spacing garter spring (frictional force increases), thus the dynamic retention force increased between joint body and oil pipe, when preventing pressure excessive, oil pipe comes off.
When pressure recovery is to normal value, promotes key 9 because the centripetal elasticity of oil pipe, make to promote key 9 and promote driving 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, be inserted into limited ring B center, the groove on rotating spanner surface is made to snap onto in fixture block, rotary motion spanner, the dismounting to limited ring B or adjustment can be realized, when limited ring B moves towards limited ring A, the precompressed of expansion spring can be increased, thus make this joint adapt to the occasion of high oil pressure.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (8)
1. a low oil pressure dynamic swelling oil connection, is characterized in that: comprise joint, drive portion, closure;
Described joint comprises joint body, and one end of joint body is provided with equipment connection head, and the other end of joint body is provided with connector of oil pipes of oil, and described connector of oil pipes of oil comprises a fixed surface for contacting with tube inner wall;
Described drive portion comprises the driving block and pushing ring that are arranged on connector of oil pipes of oil inwall, described driving block is hollow cylindrical, the outer wall annular array of driving block is provided with some protruding keys, the described axis of protruding key and the axis being parallel of driving block, promotion key is also provided with on the top of described protruding key, the upper surface of described promotion key is an inclined-plane, be connected by a connecting ring between described pushing ring with driving block end, the external diameter of described connecting ring is less than the external diameter of driving block, and the acute angle of described promotion key is oriented to the side of driving block connecting ring dorsad;
At described connector of oil pipes of oil inwall, the side of pushing ring is provided with a limited ring B, the side of connector of oil pipes of oil inwall pushing ring is dorsad provided with limited ring A, limited ring C is provided with between limited ring A and limited ring B, the described outer wall of limited ring C is fixedly connected with the inwall of oil connection, the described inwall of limited ring C and the outer wall of connecting ring are slidably connected, the internal diameter of described limited ring C is less than the external diameter of pushing ring, an expansion spring is provided with between described pushing ring and limited ring B, an annular protrusion is provided with between described pushing ring and limited ring C, the cross section of described annular protrusion is right-angled triangle, a right angle side of described annular protrusion is positioned on the inwall of oil connection, on the inwall of described driving block, annular array has some expanding blocks, described expanding block comprises pressure-bearing plate and the sidesway block of tile, the arc center of circle of the pressure-bearing plate of tile is positioned on the axis of oil connection, sidesway block is arranged on the side in the pressure-bearing plate center of circle dorsad, on described connecting ring, the fixed position annular array of corresponding expanding block is provided with some sliding-grooves, the cross section of described sidesway block is all right-angled triangle, the triangular ramp A of described sidesway block contacts with annular protrusion triangular ramp B through sliding-groove, when moving towards connector of oil pipes of oil inwall under the drive of sidesway block at pressure-bearing plate, there is relative sliding in triangular ramp A and triangular ramp B, thus promotion driving block moves towards limited ring A, be provided with the groove of one or more towards the side in the center of circle at described pressure-bearing plate, the flexible fastening ring be embedded in each pressure-bearing plate groove by one between described pressure-bearing plate is fixed together,
At the internal face of described oil connection, between limited ring A and limited ring C, be also provided with the keyway A making linear slide for protruding key, the keyway B for promoting key slip 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 driving block and the length difference of keyway A are L, and the length of described pushing ring equals the thickness that L deducts limited ring C;
Position annular array between the corresponding limited ring C and limited ring A of described connector of oil pipes of oil outer wall is provided with some flexible connection pieces, has a rubber ring in the outer wrap of described flexible connection piece array.
2. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 1, is characterized in that: described flexible connection piece is spring sheet, and described spring sheet 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 connection head and connector of oil pipes of oil are integral type, and described equipment connection head is positioned at the side of connector of oil pipes of oil afterbody, dorsad limited ring A.
4. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 3, it is characterized in that: on the afterbody inwall of described connector of oil pipes of oil, be provided with screw thread, described equipment connection head is aforesaid threaded end.
5. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 4, is characterized in that: limited 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 limited 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 equals the minimum deformation power of oil pipe wall.
8. a kind of low oil pressure dynamic swelling oil connection as claimed in claim 1, it is characterized in that: the outer wall of described connector of oil pipes of oil is also provided with one for carrying out spacing spacing garter spring to oil pipe superficial expansion, is provided with the toroidal cavity for holding 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 true CN104534218A (en) | 2015-04-22 |
| CN104534218B CN104534218B (en) | 2017-02-08 |
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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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826449A (en) * | 2019-03-15 | 2019-05-31 | 程帅奇 | Insert-type steel structure device to hole equipment |
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| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826449A (en) * | 2019-03-15 | 2019-05-31 | 程帅奇 | Insert-type steel structure device to hole equipment |
| CN109826449B (en) * | 2019-03-15 | 2023-11-10 | 程帅奇 | Inserted steel structure hole aligning equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104534218B (en) | 2017-02-08 |
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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. |
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