CN206320438U - A kind of fast connecting joint of insertion slot type steel-plastics composite pipe - Google Patents
A kind of fast connecting joint of insertion slot type steel-plastics composite pipe Download PDFInfo
- Publication number
- CN206320438U CN206320438U CN201621463286.8U CN201621463286U CN206320438U CN 206320438 U CN206320438 U CN 206320438U CN 201621463286 U CN201621463286 U CN 201621463286U CN 206320438 U CN206320438 U CN 206320438U
- Authority
- CN
- China
- Prior art keywords
- multiple tube
- inwall
- insertion slot
- slot type
- face
- 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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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model is related to a kind of fast connecting joint of insertion slot type steel-plastics composite pipe, the inwall of multiple tube has posted inwall modeling layer, radially a flange is formed with the end of left multiple tube, right multiple tube, the bulge loop of an axial direction is made in the end face of left multiple tube, an annular groove is made in the end face of right multiple tube, the bulge loop of multiple tube coaxially patches the annular groove of right multiple tube, the moving inner screw-threaded set of coaxial package one on right multiple tube, external screw thread is formed with the flange outer face of left multiple tube, moving inner screw-threaded set is connected with external screw thread engagement.Connection between this multiple tube uses insertion slot type structure, the connection between two multiple tubes is not only set to keep coaxial, the docking for also making inwall mould between layer simultaneously can also be realized coaxially, thereby ensure that being tightly connected between multiple tube, inwall between two multiple tubes is moulded layer and keep effective uniformity, it is to avoid the leakage of connecting portion.
Description
Technical field
The utility model belongs to field of metallurgy, is related to steel-plastics composite pipe, especially a kind of insertion slot type steel-plastics composite pipe it is fast
Fast jointing.
Background technology
Steel-plastics composite pipe is to be formed by coating steel pipe after overcoating modeling layer and/or inwall modeling layer, by coating steel pipe
Overcoating modeling layer, can effectively improve the anti-inside and outside corrosion function of coating steel pipe, thus extend the service life of coating steel pipe.But it is existing
Some multiple tubes, the connection of its steel tubing portions is relatively easy to, but the connection sealing of inwall modeling layer is more difficult.Although can use
Adapter of plastic is solved, but due to the effect expanded with heat and contract with cold, the coefficient of expansion between the multiple tube and adapter of plastic of steel is not
Together, it is very easy to cause between joint because of the difference formation gap of the coefficient of expansion, or even comes off.Therefore, existing multiple tube
Connection has had a strong impact on the overall corrosion resistance of multiple tube, so as to influence the service life of multiple tube.
By retrieval, following two related patent documents are found：
1st, a kind of steel plastic compount steel pipe (CN200986078Y) with anti-corrosion connectivity port, including steel plastic compount steel pipe master
Body and anti-corrosion connectivity port, the anti-corrosion connectivity port are to be done be fabricated to by rule or engineering preliminary dimension in advance before anti-corrosion by pipeline
The connection terminal of shape is constituted with its port corrosion-inhibiting coating.Anti-corrosion connectivity port is plough groove type or spigot-and-socket.
2nd, a kind of flanged steel plastic compount steel pipe and flanged pipe, the connection sealing device (CN203115345U) of pipe fitting, its
Including flange plate, pad, lining plastic tube layer, wherein flange plate is welded on the outside of the tube wall of steel plastic compount steel pipe, lining plastic tube layer
Be inlaid in the inner side of steel plastic compount steel pipe, pad is inlaid between two flange plates to be connected, lining plastic tube layer for once into
Type bound edge casts and is coated on pipe end.
By the contrast of technical characteristic, although above-mentioned two patent documents can realize connection between multiple tube and
Sealing, but its complex structure, install inconvenient, have larger difference with the present utility model application.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art to connect quick, good seal performance there is provided a kind of
The fast connecting joint of insertion slot type steel-plastics composite pipe.
The utility model solves the scheme that its technical problem used：
A kind of fast connecting joint of insertion slot type steel-plastics composite pipe, the inwall of multiple tube has posted inwall modeling layer, multiple on a left side
Close pipe, the end of right multiple tube is radially formed with a flange, it is characterised in that：The convex of an axial direction is made in the end face of left multiple tube
Ring, an annular groove is made in the end face of right multiple tube, and the bulge loop of multiple tube coaxially patches the annular groove of right multiple tube；Left multiple tube it is interior
Wall modeling layer bending envelopes bulge loop lower surface upwards, and the inwall modeling layer bending of right multiple tube envelopes the lower surface of annular groove upwards,
The moving inner screw-threaded set of coaxial package one on right multiple tube, external screw thread, moving inner screw-threaded set are formed with the flange outer face of left multiple tube
It is connected with external screw thread engagement.
Moreover, being coaxially installed with a sealing ring between the made flange of left multiple tube, the end face of the made flange of right multiple tube
Axial anti-slideway is formed with moreover, being uniformly spaced at the outer rim position that moving inner screw-threaded covers.
Advantage of the present utility model and good effect are：
1st, the connection between this multiple tube uses insertion slot type structure, the connection between two multiple tubes is kept same
Axle, while the docking for also making inwall mould between layer can also be realized coaxially, thereby ensures that being tightly connected between multiple tube, makes
Inwall modeling layer between two multiple tubes keeps effective uniformity, it is to avoid the leakage of connecting portion.
2nd, a moving inner screw-threaded set is set between the flange of this multiple tube connecting portion, the interior silk braid and another compound pipe flange
Made external screw thread engagement connection, it is possible thereby to it is quick using connection is tightened manually, it is fast and reliable.
3rd, a sealing ring is installed between the flange of this multiple tube connecting portion, passes through the sealing ring, and inwall modeling layer
Elasticity, the bonding strength between adjustment connecting portion can be made；Meanwhile, the sealing ring can with butt joint carry out secondary seal,
It is prevented effectively from leakage problem.
Brief description of the drawings
Fig. 1 is structural front view of the present utility model；
Fig. 2 for Fig. 1 A-A to cross-sectional view.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by specific embodiment, following examples are to retouch
The property stated, be not limited, it is impossible to limit protection domain of the present utility model with this.
A kind of fast connecting joint of insertion slot type steel-plastics composite pipe, the inwall of multiple tube 5 has posted inwall modeling layer 4, on a left side
Multiple tube, the end of right multiple tube are radially formed with a flange 3.
Innovative point of the present utility model is：
1st, an axial bulge loop 9 is made in the end face of left multiple tube, an annular groove 8 is made in the end face of right multiple tube, is combined
The bulge loop of pipe can coaxially patch the annular groove of right multiple tube, realize coaxially connected.The inwall modeling layer bending of left multiple tube is coated upwards
Firmly bulge loop lower surface, the inwall modeling layer bending of right multiple tube envelopes the lower surface of annular groove upwards, referring to Fig. 2 label 7, the mark
Numbers 7 be the dogleg section that inwalls mould floor so that left and right multiple tube is relative connect when, not only coaxially connect between left and right multiple tube
Sealing is connect, and the inwall modeling layer of left and right multiple tube also realizes end face seal, thereby ensures that the connection between two multiple tubes
And sealing.
2nd, the moving inner screw-threaded of coaxial package one set 2 on right multiple tube, external screw thread is formed with the flange outer face of left multiple tube,
Moving inner screw-threaded covers to be connected with external screw thread engagement, easy to connect quick.In addition, in order to tighten reliability manually, in moving inner screw-threaded set
Outer rim position uniformly interval be formed with axial anti-slideway 1.
3rd, a sealing ring 6 is coaxially installed between the made flange of left multiple tube, the end face of the made flange of right multiple tube, should
Sealing ring can realize the secondary seal at multiunit tube joint position.
In addition, the utility model is flexible due to inwall modeling layer, when covering fastening using moving inner screw-threaded between two flanges,
The inwall of left and right multiple tube can be made to mould layer and realize the sealing of effective elastic terminal surface, during so that inwall moulding layer aging, can by after
Continuous moving inner screw-threaded of tightening covers the dogleg section for further compressing two inwalls modeling layers, it is to avoid leakage, extends making for multiunit tube joint
Use the life-span.
Claims (3)
1. a kind of fast connecting joint of insertion slot type steel-plastics composite pipe, the inwall of multiple tube has posted inwall modeling layer, compound on a left side
Pipe, the end of right multiple tube are radially formed with a flange, it is characterised in that：The convex of an axial direction is made in the end face of left multiple tube
Ring, an annular groove is made in the end face of right multiple tube, and the bulge loop of multiple tube coaxially patches the annular groove of right multiple tube；Left multiple tube it is interior
Wall modeling layer bending envelopes bulge loop lower surface upwards, and the inwall modeling layer bending of right multiple tube envelopes the lower surface of annular groove upwards,
The moving inner screw-threaded set of coaxial package one on right multiple tube, external screw thread, moving inner screw-threaded set are formed with the flange outer face of left multiple tube
It is connected with external screw thread engagement.
2. the fast connecting joint of insertion slot type steel-plastics composite pipe according to claim 1, it is characterised in that：In left multiple tube
A sealing ring is coaxially installed between made flange, the end face of the made flange of right multiple tube.
3. the fast connecting joint of insertion slot type steel-plastics composite pipe according to claim 1, it is characterised in that：In moving inner screw-threaded
Uniformly interval is formed with axial anti-slideway at the outer rim position of set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621463286.8U CN206320438U (en) | 2016-12-29 | 2016-12-29 | A kind of fast connecting joint of insertion slot type steel-plastics composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621463286.8U CN206320438U (en) | 2016-12-29 | 2016-12-29 | A kind of fast connecting joint of insertion slot type steel-plastics composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320438U true CN206320438U (en) | 2017-07-11 |
Family
ID=59261665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621463286.8U Expired - Fee Related CN206320438U (en) | 2016-12-29 | 2016-12-29 | A kind of fast connecting joint of insertion slot type steel-plastics composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320438U (en) |
-
2016
- 2016-12-29 CN CN201621463286.8U patent/CN206320438U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20191229 |