CN203718249U - Conduit joint with threaded insert - Google Patents
Conduit joint with threaded insert Download PDFInfo
- Publication number
- CN203718249U CN203718249U CN201420070137.XU CN201420070137U CN203718249U CN 203718249 U CN203718249 U CN 203718249U CN 201420070137 U CN201420070137 U CN 201420070137U CN 203718249 U CN203718249 U CN 203718249U
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- CN
- China
- Prior art keywords
- threaded insert
- pipe coupling
- face
- baffle ring
- insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to a pipe fitting, in particular to a conduit joint with a threaded insert. The conduit joint with the threaded insert comprises a hollow plastic shell; the hollow plastic shell is provided with a connecting opening end; the connecting opening end is provided with the threaded insert made of metal; the threaded insert is provided with a baffle ring positioned on the end face of the connecting opening end; the baffle ring and the threaded insert are connected integrally; the axial end face of the baffle ring is provided with a plurality of anti-separation grooves; the end face of the connecting opening end is provided with anti-separation blocks positioned in the anti-separation grooves. The conduit joint with the threaded insert ensures that the insert and the plastic shell are difficultly separated, and solves the problem that the insert and the plastic shell are separated due to expansion caused by heat and contraction caused by cold in the conduit joint with the threaded insert in the prior art.
Description
Technical field
The utility model relates to pipe fitting, relates in particular to a kind of pipe coupling that is provided with threaded insert.
Background technique
Pipeline is a kind of conventional article.The connection of pipeline realizes by pipe coupling.China Patent No. be 201120485894X, notice of authorization day are July 11 in 2012 day, in being called the patent documentation of " a kind of insulation feedwater piping and insulation water supply piping system ", a kind of pipeline is disclosed.The material of making pipe coupling has a lot, wherein the pipe coupling of plastic material lightweight owing to having, can, by corrosion, low cost and other advantages, not apply very extensively weary.
The pipe coupling of plastic material has threaded and not threaded two kinds of structural types.Not threaded pipe coupling is by with glue, pipe coupling being connected and sealed together with pipe bonding, and this Placement exists the deficiency that can not dismantle.Threaded pipe coupling has overcome the not non-removable deficiency of threaded permanent joint, but because the intensity of plastics is lower, threaded pipe coupling easily produces in assembly process the phenomenon being torn.In China Patent No., be 2008200849386, notice of authorization day be February 14 in 2009 day, be called in the patent documentation of " water pipe adapter " and disclose a kind of threaded pipe coupling.
In order to overcome the deficiency being easily torn in threaded pipe coupling assembly process, designed the pipe coupling of threaded inserts.The basic structure form of the pipe coupling of threaded inserts, for the interface end interlocking inserts in pipe coupling, inserts adopt on Design of Screw Thread that metallic material (being generally copper) was made, the connected use inner peripheral surface or outer circumferential face at inserts, produces and tears phenomenon while avoiding connecting.In China Patent No., be 2007100696821, within open day, be that the patent document that November 28 in 2007, day, were called " water pipe adapter " discloses a kind of pipe coupling that is provided with threaded insert.
But the existing pipe coupling that is provided with threaded insert has the following disadvantages: because the expansion coefficient of metal and plastics is inconsistent, time generation layering break-off between metal and plastics while expanding with heat and contract with cold, causes inserts to come off or the joint of plastics and metal produces leakage phenomenon; Pipe joint end end face bare area is larger, easily produces aging; During connection, by interface end end face (parts of plastics), contact, and plastics are because hardness is low, are easily scratched and occur unevenly, produce that both to have affected planarization attractive in appearance, while also causing docking after uneven poor; During use, inserts inner peripheral surface bare area is large, easily produces corrosion phenomena, and for fear of producing corrosion phenomena, inserts can only adopt the metallic material that is not easy corrosion to make as copper, makes to make the kind generic restriction of the material of inserts.
Model utility content
First object of the present utility model aims to provide the pipe coupling that is provided with threaded insert that is not easy to produce break-off between a kind of inserts and plastic casing, solved can be separated while expanding with heat and contract with cold between inserts in the existing pipe coupling that is provided with threaded insert and plastic casing problem.
The basis that second object of the present utility model is intended to first object is the less pipe coupling that is provided with threaded insert of bare area that a kind of interface end end face is further provided, and has solved the problem that the existing pipe coupling end face that is provided with threaded insert easily produces deterioration phenomenon.
The basis that the 3rd object of the present utility model is intended to second object is the pipe coupling that is provided with threaded insert contacting by inserts when a kind of connection is further provided, the poor problem of planarization while having solved the existing pipe coupling docking that is provided with threaded insert.
The basis that the 4th object of the present utility model is intended to first object is the little pipe coupling that is provided with threaded insert of inserts internal surface bare area when a kind of use is further provided, and has solved the existing pipe coupling that is provided with threaded insert large and problem of the easy corrosion that causes of inserts internal surface exposed part area while using.
Above technical problem solves by following technical proposal: a kind of pipe coupling that is provided with threaded insert, the plastic casing that comprises hollow, described plastic casing is provided with interface end, described interface end is provided with the threaded insert that metal is made, described threaded insert is provided with the baffle ring being positioned on interface end end face, described baffle ring and described threaded insert integrative-structure link together, and the axial end of described baffle ring is provided with some dislocation preventing slots, and interface end end face is provided with the stop block that is positioned at described dislocation preventing slot.When expanding with heat and contract with cold, cause interface end when producing separation trend between inserts, stop block returns along with interface end (parts of plastics) moves together, now because stop block is arranged in dislocation preventing slot, dislocation preventing slot has limited leaving separately of stop block, thereby plays the effect that prevents that inserts and interface end from producing segregation phenomenon.
As preferably, described dislocation preventing slot is the circular groove along the circumferential extension of described threaded insert.Easy to make, anti-detachment better effects if.
As preferably, described dislocation preventing slot has twice at least.Flow resistance while can increase after producing segregation phenomenon, fluid being flowed through inserts and shell junction surface, is also not easy to produce leakage phenomenon even if make to produce segregation phenomenon.
As preferably, the width of described baffle ring is the more than 3/4ths of described interface end end face width.Can reduce the bare area of interface section end face, realize second goal of the invention.When strengthening due to shelves ring in addition, in the process screwing in installation, can reduce greatly the outer tension force of inserts, thereby reduce inserts Decrepitation Phenomena in the process screwing in installation.
As preferably, described baffle ring protrudes from described interface end end face.During connection, be that the end face by baffle ring contacts, realized the 3rd goal of the invention.
As preferably, described threaded insert interior edge face is provided with the annular capillary groove circumferentially extending along threaded insert, and described housing is provided with the falling-resistant ring being filled in described capillary groove.While expanding with heat and contract with cold, the inner of inserts is with also not producing segregation phenomenon between shell, thereby can effectively prevent leakage phenomenon.
As preferably, the radial inner end of described threaded insert interior edge face is provided with step, and described capillary groove is arranged on described step.Can increase inserts the inner with the area of contact between plastic casing, play the effect of further raising waterproofing effect.
As preferably, described housing is provided with the lining that simultaneously covers described threaded insert interior edge face and inner peripheral surface, and described lining and described housing are structure as a whole.Can reduce the bare area of inserts internal surface while using, realize the 4th goal of the invention.
As preferably, described threaded insert is inner screw thread insert, and the span between the screw thread on described lining and described threaded insert is less than 2 millimeters.If lining has covered on screw thread, represent that the span between the screw thread on lining and described threaded insert is negative.In the time of can either making inserts use the bare area of internal surface little, can not interfere again the use of the screw thread in inserts.
Preferred as another, described threaded insert is external screw thread insert, and the length of described lining is the more than 1/2nd of described threaded insert length.Can take into account the convenience while making.
The utlity model has following advantage: by the stop block that dislocation preventing slot is set on baffle ring, baffle ring and is positioned at dislocation preventing slot in interface end setting is set on inserts, while expanding with heat and contract with cold, inserts is not easy come off or separately, connect reliable and leakage-preventing effective from shell; By making the width of baffle ring, be the more than 3/4ths of interface end end face width, can reduce the bare area of interface end end face, delay the aging of interface end; By making baffle ring protrude from interface end end face, can improve the planarization while connecting; By the lining covering with inserts internal surface is set, can delay the corrosion of inserts internal surface.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment one schematic diagram.
Fig. 2 is the utility model embodiment two schematic diagram.
Fig. 3 is the utility model embodiment three schematic diagram.
Fig. 4 is the utility model embodiment four schematic diagram.
Fig. 5 is the utility model embodiment five schematic diagram.
In figure: the span W3 between the screw thread on the screw thread 23 on plastic casing 1, interface end 11, interface end end face 111, stop block 112, lining 12, falling-resistant ring 13, threaded insert 2, baffle ring 21, dislocation preventing slot 211, step 22, capillary groove 221, threaded insert, the width W 1 of baffle ring, interface end end face width W 2, lining and threaded insert, the length W4 of lining, threaded insert length W5.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
Embodiment one, and referring to Fig. 1, a kind of pipe coupling that is provided with threaded insert, comprises the plastic casing 1 of hollow.Plastic casing 1 is provided with interface end 11.Interface end end face 111 is provided with stop block 112.Stop block 112 only has one.Stop block 112 is the loop configuration along the circumferential extension of interface end 11.The inside of interface end 11 is provided with lining 12.Housing 1, interface end 11, stop block 112 and lining 12 are integrated molding and forming.Interface end 11 is provided with the threaded insert 2 being made by metal.Threaded insert 2 is inner screw thread insert.Threaded insert 2 is provided with baffle ring 21.Baffle ring 21 and threaded insert 2 link together in the mode of integrative-structure.Baffle ring 21 is positioned on interface end end face 111.Baffle ring 21 protrudes from interface end end face 111.The width W 1 of baffle ring is half of interface end end face width W 2.The axial end of baffle ring 21 is provided with dislocation preventing slot 211.Dislocation preventing slot 211 only has one.Dislocation preventing slot 211 is the circular groove along the circumferential extension of threaded insert 2.Dislocation preventing slot 211 stuffing box glands are located on stop block 112.The radial inner end of threaded insert 2 interior edge faces is provided with step 22.Lining 12 covers the inner of interior edge face and the internal surface of threaded insert 2.Span W3 between screw thread on lining and threaded insert equals 5 millimeters.Lining 12 only covers on step 22.The anti-corrosion effect of this design double thread inserts of lining is poor.
Embodiment two, referring to Fig. 2, are: step 22 is provided with capillary groove 221 with embodiment one difference.Capillary groove 221 is the circular groove circumferentially extending along threaded insert 2.Housing 1 is provided with the falling-resistant ring 13 being filled in capillary groove.Falling-resistant ring 13 and housing 1 are structure as a whole.Falling-resistant ring 13 is sealed connected together with capillary groove 221.Lining 12 covered step 22.Span W3 between screw thread on lining and threaded insert equals 2 millimeters.Dislocation preventing slot 211 has twice.Stop block 112 has twice accordingly.The width W 1 of baffle ring is 3/4ths of interface end end face width W 2.
Embodiment three, referring to Fig. 3, are: the span between the screw thread 23 on lining 12 and threaded insert equals 0 with embodiment two difference.Dislocation preventing slot 211You tri-roads.Stop block 112You tri-roads accordingly.The width W 1 of baffle ring is 7/8ths of interface end end face width W 2.
Embodiment four, referring to Fig. 4, with embodiment three difference, are: threaded insert 2 is external screw thread insert.The length W4 of lining is 1/2nd of threaded insert length W5.
Embodiment five, referring to Fig. 5, with embodiment four difference, are: the length of lining 12 and threaded insert 2 equal in length.
Claims (10)
1. a pipe coupling that is provided with threaded insert, the plastic casing that comprises hollow, described plastic casing is provided with interface end, described interface end is provided with the threaded insert that metal is made, it is characterized in that, described threaded insert is provided with the baffle ring being positioned on interface end end face, and described baffle ring and described threaded insert integrative-structure link together, the axial end of described baffle ring is provided with some dislocation preventing slots, and interface end end face is provided with the stop block that is positioned at described dislocation preventing slot.
2. the pipe coupling that is provided with threaded insert according to claim 1, is characterized in that, described dislocation preventing slot is the circular groove along the circumferential extension of described threaded insert.
3. the pipe coupling that is provided with threaded insert according to claim 2, is characterized in that, described dislocation preventing slot has twice at least.
4. according to the pipe coupling that is provided with threaded insert described in claim 1 or 2 or 3, it is characterized in that, the width of described baffle ring is the more than 3/4ths of described interface end end face width.
5. the pipe coupling that is provided with threaded insert according to claim 4, is characterized in that, described baffle ring protrudes from described interface end end face.
6. according to the pipe coupling that is provided with threaded insert described in claim 1 or 2 or 3, it is characterized in that, described threaded insert interior edge face is provided with the annular capillary groove circumferentially extending along threaded insert, and described housing is provided with the falling-resistant ring being filled in described capillary groove.
7. the pipe coupling that is provided with threaded insert according to claim 6, is characterized in that, the radial inner end of described threaded insert interior edge face is provided with step, and described capillary groove is arranged on described step.
8. according to the pipe coupling that is provided with threaded insert described in claim 1 or 2 or 3, it is characterized in that, described housing is provided with the lining that simultaneously covers described threaded insert interior edge face and inner peripheral surface, and described lining and described housing are structure as a whole.
9. the pipe coupling that is provided with threaded insert according to claim 8, is characterized in that, described threaded insert is inner screw thread insert, and the span between the screw thread on described lining and described threaded insert is less than 2 millimeters.
10. the pipe coupling that is provided with threaded insert according to claim 8, is characterized in that, described threaded insert is external screw thread insert, and the length of described lining is the more than 1/2nd of described threaded insert length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070137.XU CN203718249U (en) | 2014-02-19 | 2014-02-19 | Conduit joint with threaded insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070137.XU CN203718249U (en) | 2014-02-19 | 2014-02-19 | Conduit joint with threaded insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718249U true CN203718249U (en) | 2014-07-16 |
Family
ID=51157399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070137.XU Expired - Fee Related CN203718249U (en) | 2014-02-19 | 2014-02-19 | Conduit joint with threaded insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718249U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351121A (en) * | 2015-11-30 | 2016-02-24 | 重庆小康工业集团股份有限公司 | Gas inlet tube bracket |
| CN106756224A (en) * | 2017-02-27 | 2017-05-31 | 诸暨市宏哲机械有限公司 | A kind of water pipe head inlay card part and the alloy material for producing water pipe head inlay card part |
| CN108612932A (en) * | 2018-07-11 | 2018-10-02 | 江苏星河集团有限公司 | A kind of plastic elbow joint that anti-inserts slips |
-
2014
- 2014-02-19 CN CN201420070137.XU patent/CN203718249U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351121A (en) * | 2015-11-30 | 2016-02-24 | 重庆小康工业集团股份有限公司 | Gas inlet tube bracket |
| CN105351121B (en) * | 2015-11-30 | 2017-12-12 | 重庆小康工业集团股份有限公司 | Air inlet tube bracket |
| CN106756224A (en) * | 2017-02-27 | 2017-05-31 | 诸暨市宏哲机械有限公司 | A kind of water pipe head inlay card part and the alloy material for producing water pipe head inlay card part |
| CN108612932A (en) * | 2018-07-11 | 2018-10-02 | 江苏星河集团有限公司 | A kind of plastic elbow joint that anti-inserts slips |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20210219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |