CN2494913Y - Inserting pipe joint - Google Patents
Inserting pipe joint Download PDFInfo
- Publication number
- CN2494913Y CN2494913Y CN 01253334 CN01253334U CN2494913Y CN 2494913 Y CN2494913 Y CN 2494913Y CN 01253334 CN01253334 CN 01253334 CN 01253334 U CN01253334 U CN 01253334U CN 2494913 Y CN2494913 Y CN 2494913Y
- Authority
- CN
- China
- Prior art keywords
- cutting ferrule
- fittings body
- pipe joint
- plane
- locking nut
- 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
Links
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 14
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 6
- 239000002131 composite material Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001061264 Astragalus Species 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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- Joints With Sleeves (AREA)
Abstract
The utility model provides an inserting pipe joint which belongs to a tube. The utility model solves the problems of the tube joint used in the novel hard tube in terms of unstable connection and poor sealing effectiveness. The inserting pipe joint comprises a joint body and a locking nut which is connected with the joint body through screw thread. The end of the joint body is provided with a blocking sheath and a sealing ring. The blocking sheath and the sealing ring are arranged in the locking nut. At the inner bottom of the locking nut is a slanting surface. The external surface of the blocking sheath is a cone surface which is the same as the slanting surface in pitch. The internal side of the joint body is provided with an internal-slanting surface. The contacting surface of the blocking sheath and the sealing ring is a plane. The surface of the blocking sheath is provided with a slanting surface which is the same as the internal-slanting surface at the end of the joint body in pitch. The utility model has the advantage that the blocking sheath and the sealing ring can simultaneously produce static sealing and dynamic sealing which enables the connection between the tube joint and the tube to be of good sealing performance; at the same time, the cross section of the sealing ring is in flat oval shape. The utility model has reasonable structure.
Description
Technical field
The utility model belongs to a kind of pipe fitting, particularly a kind of embedded pipe joint.
Background technique
In the oil gas pipeline of water supply pipe or industrial use, galvanized pipe is eliminated gradually because of getting rusty easily and rotting.Simultaneously, have environment protection type, flowing water resistance little, wait warm nature and can constantly come out by good novel tube, be applied more and more widely.Tubing that these are novel such as stainless steel composite pipe etc., its end does not generally connect by screw thread.Therefore, the pipe joint of present various new structure constantly occurs.Use the back to find by reality, the existing pipe joint that is used for novel hard tube such as stainless steel composite pipe exists following point mostly: 1, connect insecurely, pipe connects the back and breaks away from easily, and anti-load property is poor; 2, sealability is undesirable, the seepage phenomenon often occurs in installation or after using.These problems that occur in the pipe joint make the advantage of novel tube be difficult to obtain embody, and directly influence being extensive use of of novel tube.The structure of a kind of pipe joint that occurs is made up of gland nut, fittings body and adapter sleeve recently, and its adapter sleeve is a cylindrical shape, and two ends are the conical surface, cooperate with gland nut and fittings body respectively.Although this pipe joint simple in structure, connect more firmly, also exist the shortcoming of poor sealing performance.
Summary of the invention
The purpose of this utility model is in order to solve the problem of the insecure and poor sealing performance of the existing connection of the pipe joint that is used for novel hard tube, a kind of structure improved embedded pipe joint to be provided.
The purpose of this utility model realizes by following technical proposal: this embedded pipe joint comprises fittings body and the locking nut that is connected with fittings body by screw thread, the end of fittings body is provided with cutting ferrule and seal ring, cutting ferrule and seal ring all are positioned at locking nut, the inner bottom part of locking nut has the inclined-plane, the outer surface of cutting ferrule has the conical surface of inclined-plane same slope therewith, the inboard, end of fittings body is provided with interior inclined-plane, and the surface with the seal ring contacting point on the cutting ferrule is the plane.
Above-mentioned cutting ferrule surface is provided with the inclined-plane with the interior inclined-plane same slope of fittings body end.
When this pipe joint uses, at first locking nut is placed on the pipe; The end that cutting ferrule and seal ring are inserted in pipe successively then, the internal diameter of cutting ferrule and seal ring is basic identical with the tube outer diameter that will connect generally speaking; At last as long as tube end is inserted in the fittings body, locking nut is twisted on fittings body get final product.Be screwed in the process of fittings body at locking nut, the interior inclined-plane of the inclined-plane of locking nut inner bottom part and inboard, fittings body end cooperatively interacts, extruding cutting ferrule and seal ring, make cutting ferrule and seal ring constantly shrink the banding pipe, the inclined-plane and the conical surface on the cutting ferrule in the final locking nut are fitted, and fitting in the interior inclined-plane of fittings body end and the inclined-plane on the cutting ferrule, forms static seal, seal ring is subjected to full its narrow space of extruding of fittings body, cutting ferrule and pipe three simultaneously, forms motive sealing.Because the surface of cutting ferrule and seal ring contacting point is the plane, thus in cutting ferrule crush seal circle process, can make the seal ring position stability, and can not cause seal ring to damage.
The cross section of above-mentioned seal ring preferably is flat ellipse.This shape will help in installation process, between seal ring embedding fittings body and the pipe, make seal ring insert the full and formation drag in back, improve its sealability.
It is that material is made that above-mentioned cutting ferrule adopts red copper usually.
Compare with existing pipe joint, the utlity model has following advantage:
1, Placement is simple, and is convenient to operation.
2, at this pipe joint with after pipe is connected, form static seal between cutting ferrule and locking nut and the fittings body, make the joint seepage can not occur; Simultaneously, even twist,, will guarantee that its sealability can not be affected because of seal ring formed motive sealing between fittings body, cutting ferrule and pipe three at installation process middle joint place.
3, when connecting, owing to utilize locking nut and fittings body to cooperatively interact, make cutting ferrule constantly shrink banding, therefore be connected firmly, the pipe disengaging can not occur or become flexible phenomenon.
4, seal ring adopts cross section to be flat elliptical shape, and is rational in infrastructure, can fully improve its sealability.
Description of drawings
Fig. 1 is the structural representation of this embedded pipe joint when being connected with pipe.
Fig. 2 is the sectional view of cutting ferrule in this embedded pipe joint.
Fig. 3 is the sectional view of seal ring in this embedded pipe joint.
Embodiment
As shown in Figure 1, embedded pipe joint is made up of fittings body 1, locking nut 2, cutting ferrule 4 and seal ring 3.In the present embodiment, this pipe joint is used for being connected with composite metal-plastic pipe 5.Composite metal-plastic pipe 5 is to coat layer of metal outward by plastic tube to make, and has advantages such as good mechanical property, long service life.Used metal adopts stainless steel usually.When connecting, at first be the connecting end that locking nut 2, cutting ferrule 4 and seal ring 3 are inserted in composite pipe 5 successively, be drive fit between cutting ferrule 4 and seal ring 3 and the composite pipe 5 wherein, promptly the internal diameter of cutting ferrule 4 and seal ring 3 equals the external diameter of composite pipe 5; Then composite pipe 5 is inserted in the fittings body 1; By screw thread locking nut 2 is screwed into the end of fittings body 1 at last.Be screwed in the process at locking nut 2, on the conical surface 40 of the inclined-plane 20 extruding cutting ferrules 4 of locking nut 2 inner bottom parts, the interior inclined-plane 10 of fittings body 1 end pushes the inclined-plane 42 and the seal ring 3 of cutting ferrules 4 simultaneously.Along with locking nut 2 is screwed into propelling, force aperture surface that cutting ferrule 4 contacts with composite pipe 5 to form the contraction of a whole astragal, until banding composite pipe 5 along composite pipe 5 outer wall.
The sectional shape of cutting ferrule 4 as shown in Figure 2, the conical surface 40 on the cutting ferrule 4 contacts with locking nut 2, inclined-plane 42 contacts with fittings body 1, plane 41 contacts with seal ring 3.Cutting ferrule 4 contact with seal ring 3 and extrusion process in, cutting ferrule 4 can not have any damage to seal ring 3, can make seal ring 3 keep excellent sealing performance.The softer red copper of cutting ferrule 4 general employing materials is that material is made, being connected back cutting ferrule 4 with composite pipe 5 at pipe joint can fully contact with composite pipe 5, the conical surface 40 on the cutting ferrule 4 is fitted fully with the inclined-plane of locking nut 2, also fits fully with the interior inclined-plane 10 of fittings body 1 in the inclined-plane 42 on the cutting ferrule 4.Like this, can firmly connect, have better seal again.
As shown in Figure 3, in the present embodiment, the cross section of seal ring 3 adopts flat elliptical shape.This shape can guarantee that seal ring can fully embed the gap between fittings body 1 and the composite pipe 5, and makes its full back form drag, improves the sealability of this pipe joint.Seal ring 3 general employing rubber are material, preferably adopt fluorine rubber to make.
As shown in Figure 1, also be provided with an annular shoulder block 11 on the inner side surface of fittings body 1, annular shoulder block 11 is connected as a single entity with fittings body 1.After composite pipe 5 inserted fittings body 1 when connecting, roof pressure was on annular shoulder block 11.11 pairs of composite pipes 5 of annular shoulder block play positioning action, can not be dark excessively when composite pipe 5 is inserted, and can make the fixed-site of composite pipe 5 composite pipe 5 be difficult to move vertically again, guarantee pipe joint position stability in use.
Claims (5)
1, a kind of embedded pipe joint, comprise fittings body (1) and the locking nut (2) that is connected with fittings body (1) by screw thread, the end of fittings body (1) is provided with cutting ferrule (4) and seal ring (3), cutting ferrule (4) and seal ring (3) all are positioned at locking nut (2), the inner bottom part that it is characterized in that described locking nut (2) has inclined-plane (20), the outer surface of cutting ferrule (4) has the conical surface (40) of inclined-plane (20) same slope therewith, the inboard, end of fittings body (1) is provided with interior inclined-plane (10), and cutting ferrule (4) is gone up and the surface of seal ring (3) contacting point is plane (41).
2, embedded pipe joint according to claim 1 is characterized in that described cutting ferrule (4) surface is provided with and the inclined-plane (42) of interior inclined-plane (10) same slope of fittings body (1) end.
3, embedded pipe joint according to claim 1 and 2 is characterized in that the cross section of described seal ring (3) is flat ellipse.
4, embedded pipe joint according to claim 1 and 2 is characterized in that it is that material is made that described cutting ferrule (4) adopts red copper.
5, embedded pipe joint according to claim 1 and 2 is characterized in that the inner side surface of described fittings body (1) is provided with an annular shoulder block (11), and annular shoulder block (11) is connected as a single entity with fittings body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253334 CN2494913Y (en) | 2001-08-26 | 2001-08-26 | Inserting pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253334 CN2494913Y (en) | 2001-08-26 | 2001-08-26 | Inserting pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2494913Y true CN2494913Y (en) | 2002-06-12 |
Family
ID=33662850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01253334 Expired - Fee Related CN2494913Y (en) | 2001-08-26 | 2001-08-26 | Inserting pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2494913Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563276A (en) * | 2012-01-10 | 2012-07-11 | 葛文宇 | Biconical ring for articulated pipe fitting |
| CN103418626A (en) * | 2013-08-05 | 2013-12-04 | 安徽金星预应力工程技术有限公司 | Special connector for drawing machine |
| CN107314142A (en) * | 2016-04-26 | 2017-11-03 | 全球能源互联网研究院 | A kind of DC converter valve cooling water channel corrosion protection device for preventing leakage |
| CN108953791A (en) * | 2018-09-06 | 2018-12-07 | 乐清市赛德斯气动有限公司 | A kind of fast twist-on head of the pneumatic hose-rigid pipe of all-metal |
-
2001
- 2001-08-26 CN CN 01253334 patent/CN2494913Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563276A (en) * | 2012-01-10 | 2012-07-11 | 葛文宇 | Biconical ring for articulated pipe fitting |
| CN103418626A (en) * | 2013-08-05 | 2013-12-04 | 安徽金星预应力工程技术有限公司 | Special connector for drawing machine |
| CN107314142A (en) * | 2016-04-26 | 2017-11-03 | 全球能源互联网研究院 | A kind of DC converter valve cooling water channel corrosion protection device for preventing leakage |
| CN107314142B (en) * | 2016-04-26 | 2024-03-19 | 全球能源互联网研究院 | A DC converter valve cooling waterway corrosion protection and anti-leakage device |
| CN108953791A (en) * | 2018-09-06 | 2018-12-07 | 乐清市赛德斯气动有限公司 | A kind of fast twist-on head of the pneumatic hose-rigid pipe of all-metal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |