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CN104405987A - High-sensitivity dynamic expansion oil pipe joint - Google Patents

High-sensitivity dynamic expansion oil pipe joint Download PDF

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Publication number
CN104405987A
CN104405987A CN201410644692.3A CN201410644692A CN104405987A CN 104405987 A CN104405987 A CN 104405987A CN 201410644692 A CN201410644692 A CN 201410644692A CN 104405987 A CN104405987 A CN 104405987A
Authority
CN
China
Prior art keywords
oil
ring
connector
limited ring
driving block
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.)
Granted
Application number
CN201410644692.3A
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Chinese (zh)
Other versions
CN104405987B (en
Inventor
尤为
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Tailian Auto Parts Co ltd
Original Assignee
Wuxi Epic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Epic Technology Co Ltd filed Critical Wuxi Epic Technology Co Ltd
Priority to CN201410644692.3A priority Critical patent/CN104405987B/en
Publication of CN104405987A publication Critical patent/CN104405987A/en
Application granted granted Critical
Publication of CN104405987B publication Critical patent/CN104405987B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/08Joints with sleeve or socket with additional locking means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The invention relates to a high-sensitivity dynamic expansion oil pipe joint which mainly comprises an oil pipe joint body and a driving block arranged in the oil pipe joint body, wherein the driving block is provided with a plurality of push keys protruded from the wall surface of the oil pipe joint body; the push keys are internally provided with helical fins used for bearing pressure, and the surfaces of the push keys are inclined surfaces. When oil pressure is increased, the push keys move, and can drive a rubber ring wrapping the outer wall of the oil pipe joint body to expand in the process of moving, so that the binding force of the oil pipe joint and the wall surface of an oil pipe is increased.

Description

A kind of high sensitivity dynamic swelling oil connection
Technical field
The present invention relates to a kind of high sensitivity 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 its initial oil pressure of general dynamic sealing mechanisms is larger, sensitivity is low, be not suitable for the civil equipment that oil pressure is told somebody what one's real intentions are, 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 high sensitivity 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, the acute angle of described promotion key is oriented to the side of driving block connecting ring dorsad, the inside of driving block is provided with spiral distributing fin, spiral water conservancy diversion duct is formed between the surface of described distributing fin and the internal face of driving block,
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, is provided with an expansion spring between described pushing ring and limited ring B;
The inner headed face of described limited ring A has been threaded a top pressure ring, and described top pressure ring comprises a top and is pressed in annular relief in pushing ring;
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 the present invention is driven by fluid pressure by one, in the drive portion of hydraulic pressure, be provided with a helical fin simultaneously, the guide channel of hydraulic oil is formed between helical fin and drive portion inwall, pass through fluid pressure, 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, the setting of helical fin adds the sensitivity to hydraulic coupling, even if be on civilian and indoor hydraulic equipment, also good fastening force can be ensured, drive portion can adopt metal to make, no matter pressure is much, the pressure-bearing limit of joint is all determined by the limit of expansion of oil pipe, simultaneously in oil pipe, pressure is larger, and the displacement amount of drive portion is also larger, makes the combination force between tube inner wall and rubber ring also larger, and when can effectively prevent oil pressure from increasing suddenly, connector of oil pipes of oil exceedes design standard and to lose efficacy the danger caused, the present invention is simultaneously after pressure reduces, pass through flexible connection piece, drive portion return can be made, after preventing oil pipe from expanding for a long time, occur aging or damaged, simultaneously because its expansion of oil pipe of different materials has the limit, in order to prevent breaking of overexpansion generation oil pipe, top pressure ring can limit the mobile position of driving block, prevent oil pipe overexpansion damage or aging.
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, distributing fin; 15, pressure ring is pushed up; 16, annular relief.
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 high sensitivity 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, the inside of driving block 7 is provided with spiral distributing fin 14, spiral water conservancy diversion duct is formed between the surface of described distributing fin 14 and the internal face of driving block,
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, the inner headed face of described limited ring A has been threaded a top pressure ring, described top pressure ring comprises a top and is pressed in annular relief in pushing ring, 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,
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, helical fin 14 and pushing ring 10 pressurized promote driving block 7 and move (direction is towards limited ring A4) along keyway A3, now promote key 9 to be synchronized with the movement, 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 rotating top pressure ring, the limit position of pushing block can be changed, prevent pushing block from moving excessive, cause pipeline rupture.
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 high sensitivity 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, the acute angle of described promotion key is oriented to the side of driving block connecting ring dorsad, the inside of driving block is provided with spiral distributing fin, spiral water conservancy diversion duct is formed between the surface of described distributing fin and the internal face of driving block,
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, is provided with an expansion spring between described pushing ring and limited ring B;
The inner headed face of described limited ring A has been threaded a top pressure ring, and described top pressure ring comprises a top and is pressed in annular relief in pushing ring;
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 high sensitivity 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 high sensitivity 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 high sensitivity 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 high sensitivity 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 high sensitivity 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 high sensitivity 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 high sensitivity 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.
CN201410644692.3A 2014-11-14 2014-11-14 A kind of high sensitivity dynamic swelling oil connection Expired - Fee Related CN104405987B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410644692.3A CN104405987B (en) 2014-11-14 2014-11-14 A kind of high sensitivity dynamic swelling oil connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410644692.3A CN104405987B (en) 2014-11-14 2014-11-14 A kind of high sensitivity dynamic swelling oil connection

Publications (2)

Publication Number Publication Date
CN104405987A true CN104405987A (en) 2015-03-11
CN104405987B CN104405987B (en) 2017-12-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108595065A (en) * 2018-05-10 2018-09-28 深圳市志凌伟业技术股份有限公司 A kind of visual effect optimization device based on the design of grid circuit
CN114941756A (en) * 2022-07-26 2022-08-26 南通希尔顿博世流体设备有限公司 Fastening joint for fluid pipeline connection

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Publication number Priority date Publication date Assignee Title
US3601361A (en) * 1968-08-09 1971-08-24 Wolf Geraete Gmbh Plug-in coupling for garden and other hoses
US3692336A (en) * 1970-10-27 1972-09-19 Wavin Bv Pipe construction
US5782501A (en) * 1995-03-21 1998-07-21 Armaturenfabrik Hermann Voss Gmbh & Co. Connecting mechanism for connecting a pipeline to a unit part
JP2002195482A (en) * 2000-12-27 2002-07-10 Bridgestone Flowtech Corp Pipe joint
CN101036017A (en) * 2004-08-16 2007-09-12 金石允 Pipe fixing system
EP1840434A2 (en) * 2006-03-30 2007-10-03 Kaimer GmbH & Co. Holding KG Connector
CN202252513U (en) * 2011-09-07 2012-05-30 宁波日月制冷设备有限公司 Clamp connector
CN102691836A (en) * 2011-03-22 2012-09-26 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
CN203940145U (en) * 2014-07-22 2014-11-12 宁波安信德亿塑业科技有限公司 A kind of Bite type fittings

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601361A (en) * 1968-08-09 1971-08-24 Wolf Geraete Gmbh Plug-in coupling for garden and other hoses
US3692336A (en) * 1970-10-27 1972-09-19 Wavin Bv Pipe construction
US5782501A (en) * 1995-03-21 1998-07-21 Armaturenfabrik Hermann Voss Gmbh & Co. Connecting mechanism for connecting a pipeline to a unit part
JP2002195482A (en) * 2000-12-27 2002-07-10 Bridgestone Flowtech Corp Pipe joint
CN101036017A (en) * 2004-08-16 2007-09-12 金石允 Pipe fixing system
EP1840434A2 (en) * 2006-03-30 2007-10-03 Kaimer GmbH & Co. Holding KG Connector
CN102691836A (en) * 2011-03-22 2012-09-26 安隆化成株式会社 Pipe joint
CN202252513U (en) * 2011-09-07 2012-05-30 宁波日月制冷设备有限公司 Clamp connector
CN202532059U (en) * 2012-04-20 2012-11-14 南京肯特复合材料有限公司 Oil pipe joint
CN203940145U (en) * 2014-07-22 2014-11-12 宁波安信德亿塑业科技有限公司 A kind of Bite type fittings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108595065A (en) * 2018-05-10 2018-09-28 深圳市志凌伟业技术股份有限公司 A kind of visual effect optimization device based on the design of grid circuit
CN108595065B (en) * 2018-05-10 2021-03-30 深圳市志凌伟业技术股份有限公司 Internal protection structure of touch screen based on grid line design
CN114941756A (en) * 2022-07-26 2022-08-26 南通希尔顿博世流体设备有限公司 Fastening joint for fluid pipeline connection
CN114941756B (en) * 2022-07-26 2022-10-21 南通希尔顿博世流体设备有限公司 Fastening joint for connecting fluid pipeline

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