CN107725938A - A kind of rack-and-pinion joint of flexible pipe - Google Patents
A kind of rack-and-pinion joint of flexible pipe Download PDFInfo
- Publication number
- CN107725938A CN107725938A CN201711043981.8A CN201711043981A CN107725938A CN 107725938 A CN107725938 A CN 107725938A CN 201711043981 A CN201711043981 A CN 201711043981A CN 107725938 A CN107725938 A CN 107725938A
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- China
- Prior art keywords
- rack
- joint
- fixed cover
- thread segment
- changeover portion
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Classifications
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- 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
- F16L33/04—Hose-clips tightened by tangentially-arranged threaded pin and nut
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of rack-and-pinion joint of flexible pipe, including joint pipe body and 2 nut sleeves, the both ends of joint pipe body are respectively equipped with socket changeover portion, middle part body is fixedly connected with 1 fixed cover respectively close to two close ends of socket changeover portion, axial annular is evenly equipped with through hole in the side wall of fixed cover, 2 movable sleeves are provided between 2 fixed covers, movable sleeve includes rack segments and thread segment, rack segments include the uniform rack of some annulars, the rack of the movable sleeve of homonymy is correspondingly inserted in the through hole of fixed cover, at least provided with the guiding groove of an axial direction on the inner peripheral surface of thread segment, the outer wall of middle part body, which is provided with, is oriented to fin, the outer circumference surface of thread segment is provided with external screw thread, nut sleeve includes taper surface and inner threaded surface, the external screw thread of thread segment is adapted with the internal thread in the inner threaded surface of nut sleeve.Compared with prior art, the beneficial effects of the invention are as follows：Installation and removal are convenient, easy to operate, laborsaving, and are not easy to leak, less easy to fall off.
Description
Technical field
The present invention relates to a kind of rack-and-pinion joint of flexible pipe.
Background technology
At the production operation scene of enterprise, often there are some equipment using gas or liquid-working-medium, the conveying of medium
Pipeline uses flexible pipe, the connection of all kinds of high and low pressure flexible pipes using being a kind of commonplace phenomenon, especially with oxygen, combustion gas,
Compressed air and nitrogen, hydrogen, argon, carbon dioxide etc. are even more so for the hot-working unit of working media.The connection side of flexible pipe
Formula is typically all using iron wire binding or pipe collar (including being squeezed into pattern pipe collar and screw tension-type pipe collar) connection, this three kinds connections
The common feature of mode is tied or banding flexible pipe is produced internal withdraw type crimp, by the inner surface or inner tube of flexible pipe
Inner surface, it is anti-slip between tube core (back taper surface pipe joint or smooth straight joint with concentric reducer diameter) outer surface with being connected
Frictional resistance realizes sealing and connection, and its attachment force only results from pipe internal surface, in the case of without using special tooling, instrument
Its bonding strength, sealing are not easy to ensure, easily leaked, or even come off, and charge and discharge operations are cumbersome, laborious.
CN201010242427.4 discloses a kind of hose coupling, is combined by tube expansion bolt, banded penstock nut, connection nut living
Form；The tube expansion bolt has integrally-built thread segment and cylindric bolt head, the external diameter of thread segment and connected flexible pipe
Internal diameter match, there is longitudinal hole at the center of the bolt, and the cross sectional shape of the through hole has two kinds, wherein corresponding thread segment part is
Circular hole, corresponding bolt head part is regular polygon driving hole；The endoporus of the banded penstock nut is shoulder hole, and reduced diameter section is screw thread
Hole, match with the screw thread of tube expansion bolt, the inner wall surface of enlarged diameter section is non slip surface, is matched with the external diameter of connected flexible pipe, soft
Manage in the gap between the enlarged diameter section and tube expansion bolt thread section；The endoporus of the connection nut living is shoulder hole, small
Diameter segment is unthreaded hole, and for empty set on the cylinder of tube expansion bolt thread Duan Wai gardens, aperture is slightly larger than the external diameter of tube expansion bolt thread section,
Enlarged diameter section is screwed hole, is matched with the external screw thread of connected frock, instrument, the internal diameter of the screwed hole is slightly larger than tube expansion bolt spiral shell
The external diameter of bolt head, bolt head are located in the screwed hole.
Its advantage is：Bonding strength is high, good seal performance, is not easy to leak, less easy to fall off, and loading, unloading are without special
It is easy to operate, quick, laborsaving with instrument, it can complete by hand.
But its shortcoming is：It is divided into three parts, needs size to cooperate between each other, process is cumbersome.
CN200780048258.7 discloses a kind of pipe joint, and it includes the convex shape of cylindrical shape, inserted for above-mentioned convex shape
Cylindric concave body, the locking and above-mentioned convex shape of combination and the elastic annular fixture structural unit of above-mentioned concave body entered, wherein, on
Stating convex shape includes the first cylindrical portion from its root towards front end, has with above-mentioned first cylindrical portion identical external diameter or than above-mentioned
Second cylindrical portion of the small external diameter of the first cylindrical portion, from the inside inclined outside tapered portion in side of above-mentioned second cylindrical portion；It is above-mentioned convex
Body also has endless groove between above-mentioned first cylindrical portion and above-mentioned second cylindrical portion；Above-mentioned concave body is inserted with above-mentioned convex from it
The opening portion of body towards it is internal include and be inserted with above-mentioned convex shape when contacted with above-mentioned first cylindrical portion the first internal face, with it is upper
State the second internal face of the second cylindrical portion contact, from the above-mentioned inclined inner side tapered portion of the inward-facing side of second inwall；Above-mentioned spill
Body is also configured with above-mentioned elastic annular fixture structural unit between above-mentioned first internal face and above-mentioned second internal face, and with by upper
The two-stage that the holding tank for stating the locking groove of opening portion side and above-mentioned private side is adjacent and is formed；The radius of above-mentioned holding tank is formed
The radius of above-mentioned second cylindrical portion must be more than plus length, above-mentioned ring-type obtained from the diameter of above-mentioned elastic annular fixture structural unit
The depth of depth and above-mentioned locking groove away from above-mentioned first internal face of above-mentioned first cylindrical portion of slot pitch is formed larger than above-mentioned elasticity
The diameter of ring-type fixture structural unit；Above-mentioned elastic annular fixture structural unit has a part for cutting away ring-type and the gap that is formed, in it
All diameters are formed smaller than the external diameter of above-mentioned second cylindrical portion；Between the wall and axis of the above-mentioned front of above-mentioned endless groove
Angle is 90 °~45 °, angle between the wall and axis of the above-mentioned opening portion side of above-mentioned locking groove be more than or equal to 30 ° and
Less than 90 °；Angle between the wall and axis of the above-mentioned front of above-mentioned endless groove is set more than above-mentioned locking groove
Angle between the wall and axis of above-mentioned opening portion side；Above-mentioned convex shape has in the above-mentioned front of above-mentioned outside tapered portion
3rd cylindrical portion；Above-mentioned concave body is when the above-mentioned private side of above-mentioned inner side tapered portion has and is inserted with above-mentioned convex shape with above-mentioned the
3rd internal face of three cylindrical portions contact；The pipe joint has the sealing for accommodating the elastic annular containment member for being used to seal fluid
Component holding tank, the containment member holding tank is across above-mentioned 3rd internal face or across above-mentioned 3rd internal face and above-mentioned the
Both three cylindrical portions；Above-mentioned elastic ring is configured with the above-mentioned containment member holding tank being formed on above-mentioned 3rd internal face
Shape containment member；Length on the axis direction of above-mentioned second cylindrical portion is being set to A, from the identical outer of above-mentioned 3rd cylindrical portion
The front end of path portion is to after the above-mentioned root side of above-mentioned elastic annular containment member and the contact portion of above-mentioned 3rd cylindrical portion
When length on the axis direction at end is set to B, meet A ＞ B relation.
Its shortcoming is that structure is excessively complicated.
The content of the invention
The present invention needs to solve the problems, such as to be to be directed to above-mentioned the deficiencies in the prior art, and provides a kind of rack-and-pinion of flexible pipe and connect
Head.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of rack-and-pinion joint of flexible pipe, including joint pipe body and 2 nut sleeves, joint pipe body are in hollow cylinder, joint
The both ends of body are respectively equipped with socket changeover portion, are socketed external diameter of the external diameter more than the middle part body of joint pipe body of changeover portion, in
Portion's body is fixedly connected with 1 fixed cover respectively close to two close ends of socket changeover portion, axial annular in the side wall of fixed cover
Through hole is evenly equipped with, 2 movable sleeves are provided between 2 fixed covers, movable sleeve includes rack segments and thread segment, and rack segments direction is fixed
Set, rack segments include the uniform rack of some annulars, and the end of rack is curved, and the rack of the movable sleeve of homonymy is corresponding to be inserted
In the through hole of fixed cover, the side that socket changeover portion corresponds to through hole is provided with arc surface, on the inner peripheral surface of thread segment at least provided with
The guiding groove of one axial direction, the outer wall of middle part body are provided with the guiding fin being adapted with being oriented to groove, thread segment it is outer
Periphery is provided with external screw thread, and the inner peripheral surface of nut sleeve is divided axially into taper surface and inner threaded surface along the longitudinal axis, taper surface it is big
End is towards the center of joint pipe body, and inner threaded surface is towards the center of joint pipe body, the external screw thread of thread segment and the interior spiral shell of nut sleeve
Internal thread on line face is adapted.
The external diameter of fixed cover is adapted with the internal diameter of flexible pipe waiting.
Be socketed changeover portion longitudinal section it is tapered, small end outwardly, and be socketed changeover portion outer circumference surface be provided with anti-slide saw
Tooth, center of the saw cutting edge of a knife or a sword towards joint pipe body of anti-skidding sawtooth.
The length of rack is more than the width of fixed cover.
The width of nut sleeve adds the sum of the width of thread segment more than the width of fixed cover.
Compared with prior art, the beneficial effects of the invention are as follows：Installation and removal are convenient, easy to operate, laborsaving, and are not easy
Leakage, it is less easy to fall off.
Brief description of the drawings
Fig. 1 is the structural representation of the rack-and-pinion joint of the flexible pipe of the present invention.
Wherein, 1- joint pipe bodies, 2- socket changeover portions, 3- fixed covers, 4- movable sleeves, 5- nut sleeves, 6- thread segments, 7- teeth
Bar, 8- are oriented to fin, 9- taper surfaces, 10- inner threaded surfaces.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Figure is included with lower component：Joint pipe body 1, socket changeover portion 2, fixed cover 3, movable sleeve 4, nut sleeve 5, thread segment
6th, rack 7, guiding fin 8, taper surface 9 and inner threaded surface 10.
As shown in figure 1, a kind of rack-and-pinion joint of flexible pipe, including joint pipe body and 2 nut sleeves, joint pipe body is in hollow
Cylinder, the both ends of joint pipe body are respectively equipped with socket changeover portion, and the external diameter for being socketed changeover portion is more than the middle part of joint pipe body
The external diameter of body, middle part body are fixedly connected with 1 fixed cover, the side of fixed cover respectively close to two close ends of socket changeover portion
Axial annular is evenly equipped with through hole in wall, is provided with 2 movable sleeves between 2 fixed covers, movable sleeve includes rack segments and thread segment, tooth
Bar section is towards fixed cover, and rack segments include the uniform rack of some annulars, and the end of rack is curved, the movable sleeve of homonymy
Rack is correspondingly inserted in the through hole of fixed cover, and the side that socket changeover portion corresponds to through hole is provided with arc surface, the inner periphery of thread segment
It is convex provided with the guiding being adapted with guiding groove at least provided with the guiding groove of an axial direction, the outer wall of middle part body on face
Rib, the outer circumference surface of thread segment are provided with external screw thread, and the inner peripheral surface of nut sleeve is divided axially into taper surface and internal thread along the longitudinal axis
Face, the big end of taper surface towards the center of joint pipe body, inner threaded surface towards the center of joint pipe body, the external screw thread of thread segment with
Internal thread in the inner threaded surface of nut sleeve is adapted.
The external diameter of fixed cover is adapted with the internal diameter of flexible pipe waiting.
Be socketed changeover portion longitudinal section it is tapered, small end outwardly, and be socketed changeover portion outer circumference surface be provided with anti-slide saw
Tooth, center of the saw cutting edge of a knife or a sword towards joint pipe body of anti-skidding sawtooth.
The length of rack is more than the width of fixed cover.
The width of nut sleeve adds the sum of the width of thread segment more than the width of fixed cover.
In use, first 2 nut sleeves are respectively sleeved on two sections flexible pipe waiting, the inner threaded surface of nut sleeve outwardly, then
Two section flexible pipes waiting are covered to the both ends of joint pipe body respectively, at mouthpiece cover to the fixed cover of flexible pipe waiting, then by nut sleeve
Screwed with thread segment, be actively set on and be oriented to groove and move closer to be socketed changeover portion under the guide effect of guiding fin, rack
End moves closer to socket changeover portion, until protruded by arcwall face extruding, the end of the rack protruded is by flexible pipe waiting
Tube wall is squeezed on taper surface, and during dismounting, thread segment and nut sleeve are unscrewed, and makes the movable sleeve of homonymy away from socket changeover portion,
Recovered by protruding state to non-protruding state rack end, you can drag down flexible pipe waiting from socket changeover portion.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (5)
- A kind of 1. rack-and-pinion joint of flexible pipe, it is characterised in that：Including joint pipe body and 2 nut sleeves, joint pipe body is in hollow Cylinder, the both ends of joint pipe body are respectively equipped with socket changeover portion, and the external diameter for being socketed changeover portion is more than the middle part of joint pipe body The external diameter of body, middle part body are fixedly connected with 1 fixed cover, the side of fixed cover respectively close to two close ends of socket changeover portion Axial annular is evenly equipped with through hole in wall, is provided with 2 movable sleeves between 2 fixed covers, movable sleeve includes rack segments and thread segment, tooth Bar section is towards fixed cover, and rack segments include the uniform rack of some annulars, and the end of rack is curved, the movable sleeve of homonymy Rack is correspondingly inserted in the through hole of fixed cover, and the side that socket changeover portion corresponds to through hole is provided with arc surface, the inner periphery of thread segment It is convex provided with the guiding being adapted with guiding groove at least provided with the guiding groove of an axial direction, the outer wall of middle part body on face Rib, the outer circumference surface of thread segment are provided with external screw thread, and the inner peripheral surface of nut sleeve is divided axially into taper surface and internal thread along the longitudinal axis Face, the big end of taper surface towards the center of joint pipe body, inner threaded surface towards the center of joint pipe body, the external screw thread of thread segment with Internal thread in the inner threaded surface of nut sleeve is adapted.
- 2. the rack-and-pinion joint of flexible pipe according to claim 1, it is characterised in that：The external diameter of fixed cover and flexible pipe waiting Internal diameter is adapted.
- 3. the rack-and-pinion joint of flexible pipe according to claim 1, it is characterised in that：The longitudinal section of changeover portion is socketed in cone Shape, outwardly, and the outer circumference surface for being socketed changeover portion is provided with anti-skidding sawtooth to small end, and anti-skidding sawtooth saws cutting edge of a knife or a sword towards joint pipe body Center.
- 4. the rack-and-pinion joint of flexible pipe according to claim 1, it is characterised in that：The length of rack is more than the width of fixed cover Degree.
- 5. the rack-and-pinion joint of flexible pipe according to claim 1, it is characterised in that：The width of nut sleeve is more than fixed cover Width adds the sum of the width of thread segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043981.8A CN107725938B (en) | 2017-10-31 | 2017-10-31 | A kind of rack-and-pinion connector of hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043981.8A CN107725938B (en) | 2017-10-31 | 2017-10-31 | A kind of rack-and-pinion connector of hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725938A true CN107725938A (en) | 2018-02-23 |
| CN107725938B CN107725938B (en) | 2019-11-22 |
Family
ID=61202469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711043981.8A Active CN107725938B (en) | 2017-10-31 | 2017-10-31 | A kind of rack-and-pinion connector of hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725938B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780863A (en) * | 2021-01-12 | 2021-05-11 | 陈俏俏 | Two-way PP pipe joint |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344635Y (en) * | 1998-07-20 | 1999-10-20 | 高成庚 | Soft plastic waterpipe end-to-end fixing device |
| CN102537562A (en) * | 2012-02-08 | 2012-07-04 | 宁波国通汽车零部件有限公司 | Vehicle oil-pipe connecting structure |
| CN102985742A (en) * | 2010-07-14 | 2013-03-20 | 惠普发展公司，有限责任合伙企业 | Mounting apparatus and system thereof |
| CN104976466A (en) * | 2015-06-24 | 2015-10-14 | 严传 | Novel soft elastic water pipe connector |
| CN205534757U (en) * | 2016-02-02 | 2016-08-31 | 浙江工业职业技术学院 | Pipeline connecting device |
| CN106062456A (en) * | 2014-03-05 | 2016-10-26 | 富世华股份有限公司 | Clamping nut for quick hose coupling |
| CN206723667U (en) * | 2017-05-12 | 2017-12-08 | 河南恒星液压有限公司 | Withhold flexible pipe built-up joint |
-
2017
- 2017-10-31 CN CN201711043981.8A patent/CN107725938B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344635Y (en) * | 1998-07-20 | 1999-10-20 | 高成庚 | Soft plastic waterpipe end-to-end fixing device |
| CN102985742A (en) * | 2010-07-14 | 2013-03-20 | 惠普发展公司，有限责任合伙企业 | Mounting apparatus and system thereof |
| CN102537562A (en) * | 2012-02-08 | 2012-07-04 | 宁波国通汽车零部件有限公司 | Vehicle oil-pipe connecting structure |
| CN106062456A (en) * | 2014-03-05 | 2016-10-26 | 富世华股份有限公司 | Clamping nut for quick hose coupling |
| CN104976466A (en) * | 2015-06-24 | 2015-10-14 | 严传 | Novel soft elastic water pipe connector |
| CN205534757U (en) * | 2016-02-02 | 2016-08-31 | 浙江工业职业技术学院 | Pipeline connecting device |
| CN206723667U (en) * | 2017-05-12 | 2017-12-08 | 河南恒星液压有限公司 | Withhold flexible pipe built-up joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780863A (en) * | 2021-01-12 | 2021-05-11 | 陈俏俏 | Two-way PP pipe joint |
| CN112780863B (en) * | 2021-01-12 | 2022-09-23 | 浙江富亿管业有限公司 | Two-way PP pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107725938B (en) | 2019-11-22 |
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