CN210510566U - Pipe connection structure - Google Patents
Pipe connection structure Download PDFInfo
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- CN210510566U CN210510566U CN201921013301.2U CN201921013301U CN210510566U CN 210510566 U CN210510566 U CN 210510566U CN 201921013301 U CN201921013301 U CN 201921013301U CN 210510566 U CN210510566 U CN 210510566U
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- Prior art keywords
- pipe
- wall
- plastic
- sleeve
- structure according
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- 229910000831 Steel Inorganic materials 0.000 claims description 38
- 239000010959 steel Substances 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 12
- 238000005485 electric heating Methods 0.000 description 11
- 230000005674 electromagnetic induction Effects 0.000 description 7
- 230000004927 fusion Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model relates to a pipe connection structure belongs to the connection structure technical field of pipeline, relates to being connected of plastic tubing and connecting pipe, and the joint of connecting pipe is including the outer tube and the interior sleeve pipe of coaxial setting, the mold insert is buried underground to the inner perisporium of outer tube, form axial extension's annular gap between interior sleeve pipe outer wall and the outer sleeve pipe inner wall, insert annular gap the outer wall and the mold insert contact of plastic tubing, the mold insert receives the response and generates heat and make outer sleeve pipe inner wall and plastic tubing outer wall melting combine. And the inner wall of the inner sleeve is also provided with a supporting core pipe. This application is simple structure not only, the simple operation, and extensive applicability, leakproofness are strong moreover.
Description
Technical Field
The utility model relates to a pipe connection structure belongs to the connection structure technical field of pipeline.
Background
The pipeline connection refers to the connection of two pipelines, and for plastic pipelines, electric hot melting is usually adopted to connect pipe fittings at present. The electric heating fusion connecting pipe fitting is a connecting method for fusing the contact surfaces into a whole by utilizing the high temperature generated after an electric heating element embedded on the inner surface of the pipe fitting is electrified, and the electric heating element usually adopts an electric heating wire. The electric heating wire framework is a plastic coil inserting frame which is made of plastic with the same material as the pipeline and has a certain width, and the electric heating wire forming a loop is embedded in the groove on the outer surface of the plastic coil inserting frame. The electric heating wire framework wound with the electric heating wire is arranged on the inner wall of the port of the pipe fitting injection mold, the pipe fitting is injected into the pipe fitting, a special power supply is adopted to electrify the electric heating wire, the electric heating wire melts the inner wall of the pipe fitting and the outer wall of the pipe fitting to form a hot melting strip due to the electric heating effect of current, the hot melting strip is melted and integrated, and reliable connection is formed after cooling.
However, the heating wire used in the existing electric hot melt connecting pipe fitting is wound from one end of the pipe fitting to the other end, and two electrodes connected with the heating wire are respectively arranged at two ends of the pipe fitting, so that the structure is complex; and the circular telegram back, both ends butt fusion simultaneously, among this connection structure, the both ends of pipe fitting must the butt fusion simultaneously, and the heat that the heating wire at both ends produced is inhomogeneous for both ends butt fusion effect is not necessarily the same, and the leakproofness is poor.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a pipe connection structure aiming at the prior art, which not only has simple structure but also is convenient to operate; and the sealing performance is strong, and the applicability is wide.
The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a pipe connection structure, includes connecting pipe and plastic tubing, the connecting pipe tip have with plastic tubing assorted hot melt type connect, connect and be used for connecting pipe and plastic tubing sealing connection, connect outer tube and interior sleeve pipe including coaxial setting, the mold insert is buried underground to outer tube internal perisporium, form axial extension's annular gap between interior sleeve pipe outer wall and the outer sleeve pipe inner wall, insert annular gap the outer wall and the mold insert contact of plastic tubing, the mold insert receives the response and generates heat messenger outer sleeve pipe inner wall and plastic tubing outer wall fusion combines.
The mold insert is a hollowed annular metal grid which comprises a square hole separation net, a round hole separation net and a rhombic separation net.
The inner wall of the inner sleeve is also provided with a support core tube for preventing the inner sleeve from deforming.
The supporting core pipe is a brass pipe fitting, and the induced heating temperature of the supporting core pipe is lower than that of the insert.
The deep part of the annular gap limits the extending end of the plastic pipe.
In an axial direction, the inner sleeve is retracted inwardly relative to the outer sleeve.
Furthermore, the plastic pipe is a steel framework pipe with a tubular steel net rack embedded in the pipe body. In the process of carrying out hot melting on the insert by induction, the tubular steel net rack at the core part of the steel framework is simultaneously heated by induction to soften the connecting pipe.
Furthermore, the plastic pipe is a steel wire mesh pipe in which a tubular steel wire frame formed by interweaving an inner layer steel wire and an outer layer steel wire is embedded in a pipe body.
Compared with the prior art, the utility model has the advantages of: the utility model provides a sealing connection of plastic tubing and connecting pipe is realized to pipe connection structure, connecting pipe tip have this joint, through stretch into the plastic tubing this annular gap who connects in, heat the melting to the metal graticule mesh through the electromagnetic induction heating coil. Not only simple structure, the simple operation, extensive applicability, leakproofness are strong moreover.
Drawings
Fig. 1 is a schematic view of a pipe connection structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of the connection structure of the three-way connection tube and the plastic tube;
FIG. 3 is a schematic view of a connection structure of the elbow type connection pipe and the plastic pipe;
FIG. 4 is a schematic view of the connection structure of the special-shaped connection tube and the plastic tube;
FIG. 5 is a schematic view of a connection structure of a flange type connection pipe and a plastic pipe;
FIG. 6 is a schematic structural diagram of a metal grid;
FIG. 7 is a schematic view of a connection structure of a steel skeleton pipe and a connection pipe;
fig. 8 is a schematic view of the connection structure of the wire mesh tube and the connection tube.
In the figure, 1 connecting pipe, 2 joints, 2.1 outer sleeves, 2.2 inner sleeves, 2.3 supporting core pipes, 3 plastic pipes, 5 metal grids, 6 electromagnetic induction heating coils, 7 steel skeleton pipes and 8 steel wire mesh pipes are arranged.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the pipe connection structure in this embodiment includes a straight-through connection pipe 1 and plastic pipes 3, the plastic pipes 3 are respectively disposed at two ends of the straight-through connection pipe 1, connectors 2 matched with the plastic pipes 3 are respectively disposed at two ends of the connection pipe 1, and the connection pipe 1 and the corresponding plastic pipe 3 are hermetically connected by the two connectors 2. The joint 2 comprises an outer sleeve 2.1, an inner sleeve 2.2 and a supporting core tube 2.3 which are coaxially arranged, the inner sleeve 2.2 is arranged on the inner side of the outer sleeve 2.1, and in the axial direction, the inner sleeve retracts inwards along the outer sleeve, so that the end parts of the inner sleeve and the outer sleeve are not coplanar.
The metal grid 5 is buried underground to the inner perisporium of outer tube 2.1, forms axially extended annular clearance between inner tube 2.2 outer wall and outer tube 2.1 inner wall, inserts plastic tubing 3 in the annular clearance and the annular clearance deep constitutes spacingly to plastic tubing 3 stretches into the end. The metal grid 5 is in contact with the outer wall of the plastic tube 3. An electromagnetic induction heating coil 6 is arranged outside the outer sleeve 2.1 in the annular direction, so that the metal grid 5 is heated by induction, the metal grid 5 makes the inner peripheral wall of the outer sleeve 2.1 and the outer peripheral wall of the plastic pipe 3 contacted with the metal grid locally melt and bond respectively, and the plastic pipe 3 is melted and fixed in the annular gap of the joint 2 after cooling. Set up support core pipe 2.3 in inner tube 2.2, support core pipe 2.3 and adopt the brass pipe fitting preparation to form, when electromagnetic induction heating coil 6 to with metal graticule mesh 5 heat, play the supporting role to inner tube 2.2, prevent that inner tube 2.2 from collapsing the deformation, ensure that the official cavity of joint 2 does not warp. In the axial direction, the inner jacket tube 2.2 is retracted inwardly along the outer jacket tube 2.1, so that the ends of the inner jacket tube 2.2 and the outer jacket tube 2.1 are not in the same vertical plane, preventing the plastic tube 3 from bending when heated by induction.
As shown in fig. 6, the metal grid 5 is a hollow annular metal grid, and includes a square-hole separation net, a round-hole separation net, a diamond separation net, and the like.
Example 2
The connecting joint structure of the plastic pipe 3 and the connecting pipe 1 is also suitable for a steel wire mesh framework pipe 7 and a connecting pipe 1, as shown in fig. 7, the connecting joint structure of the steel wire mesh framework pipe and the connecting pipe comprises a straight-through type connecting pipe 1 and a steel wire mesh framework pipe 7, the steel wire mesh framework pipe 7 is respectively arranged at two ends of the straight-through type connecting pipe 1, the two ends of the connecting pipe 1 are respectively provided with a joint 2 matched with the steel wire mesh framework pipe 7, and the connecting pipe 1 and the corresponding steel wire mesh framework pipe 7 are hermetically connected through the two joints 2. The joint 2 comprises an outer sleeve 2.1, an inner sleeve 2.2 and a supporting core tube 2.3 which are coaxially arranged, the inner sleeve 2.2 is arranged on the inner side of the outer sleeve 2.1, and in the axial direction, the inner sleeve retracts inwards along the outer sleeve, so that the end parts of the inner sleeve and the outer sleeve are not coplanar. The metal grid 5 is buried in the inner peripheral wall of the outer sleeve 2.1, an annular gap extending axially is formed between the outer wall of the inner sleeve 2.2 and the inner wall of the outer sleeve 2.1, the steel wire mesh framework pipe 7 is inserted into the annular gap, and the deep part of the annular gap limits the extending end of the steel wire mesh framework pipe 7. The metal grid 5 is contacted with the outer wall of the steel wire mesh framework pipe 7. An electromagnetic induction heating coil 6 is arranged outside the outer sleeve 2.1 in the annular direction, the metal grid 5 is heated by the induction heating coil 6 to rise the temperature, the inner peripheral wall of the outer sleeve 2.1 contacting with the metal grid 5 and the outer peripheral wall of the steel wire mesh skeleton pipe 7 are locally bonded respectively, and the steel wire mesh skeleton pipe 7 is melted and fixed in the annular gap of the joint 2 after cooling. Set up support core pipe 2.3 in inner tube 2.2, support core pipe 2.3 and adopt the brass pipe fitting preparation to form, when electromagnetic induction heating coil 6 heats metal graticule mesh 5, support core pipe 2.3 plays the supporting role to inner tube 2.2, prevents that inner tube 2.2 from collapsing the deformation, ensures that the lumen of joint 2 does not warp. In the axial direction, the inner sleeve 2.2 is retracted inwards along the outer sleeve 2.1, so that the ends of the inner sleeve 2.2 and the outer sleeve 2.1 are not coplanar, and the steel wire mesh skeleton pipe 7 is prevented from bending when heated by induction.
In addition, as another modification of this embodiment, the plastic pipe 3 may also be a steel wire mesh pipe 8, as shown in fig. 8, the plastic pipe 3 is a steel wire mesh pipe 8 in which a tubular steel wire frame formed by interweaving inner steel wires and outer steel wires is embedded in the pipe body. The inner layer spiral steel wire and the outer layer spiral steel wire form a steel mesh frame with a rhombic mesh structure.
Other embodiments
As shown in fig. 1, 2, 3, 4, and 5, the connection pipe 1 may have other structures such as a straight pipe type, a three-way type, a flange type, an elbow type, and a special type, the joints 2 are respectively provided at the ends of the connection pipe 1, and the metal grid inside the joints is heated by the electromagnetic induction heating coil 6, so that the connection pipe 1 is hermetically connected with the plastic pipe 3 or the steel wire mesh skeleton pipe 7, and the operation is convenient. The connector 2 has wide applicability and strong sealing property.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a pipe connection structure, includes connecting pipe (1) and plastic tubing (3), connecting pipe (1) tip have with plastic tubing (3) assorted hot melt type connect (2), connect (2) and be used for connecting pipe (1) and plastic tubing (3) sealing connection, its characterized in that: the joint (2) comprises an outer sleeve (2.1) and an inner sleeve (2.2) which are coaxially arranged, an insert (5) is embedded in the inner peripheral wall of the outer sleeve (2.1), an annular gap extending axially is formed between the outer wall of the inner sleeve (2.2) and the inner wall of the outer sleeve (2.1), the outer wall of the plastic pipe (3) is contacted with the insert (5) when the annular gap is inserted, and the insert (5) is heated by induction to enable the inner wall of the outer sleeve (2.1) to be fused and combined with the outer wall of the plastic pipe (3).
2. A pipe connecting structure according to claim 1, wherein: the mold insert is a hollowed annular metal grid which comprises a square hole separation net, a round hole separation net and a rhombic separation net.
3. A pipe connecting structure according to claim 1, wherein: and a support core pipe (2.3) is also arranged on the inner wall of the inner sleeve (2.2).
4. A pipe connecting structure according to claim 3, wherein: the supporting core pipe (2.3) is a brass pipe fitting.
5. A pipe connecting structure according to claim 1, wherein: the deep part of the annular gap limits the extending end of the plastic pipe (3).
6. A pipe connecting structure according to claim 1, wherein: in the axial direction, the inner sleeve (2.2) is retracted inwardly relative to the outer sleeve (2.1).
7. A pipe connecting structure according to claim 1, wherein: the plastic pipe (3) is a steel framework pipe with a tubular grid steel frame embedded in the pipe body.
8. A pipe connecting structure according to claim 1, wherein: the plastic pipe (3) is a steel wire mesh pipe with a tubular steel wire frame formed by interweaving an inner layer steel wire and an outer layer steel wire and embedded in a pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013301.2U CN210510566U (en) | 2019-07-01 | 2019-07-01 | Pipe connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013301.2U CN210510566U (en) | 2019-07-01 | 2019-07-01 | Pipe connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210510566U true CN210510566U (en) | 2020-05-12 |
Family
ID=70581672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921013301.2U Expired - Fee Related CN210510566U (en) | 2019-07-01 | 2019-07-01 | Pipe connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210510566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296293A (en) * | 2019-07-01 | 2019-10-01 | 江苏云皓塑料管件有限公司 | A kind of pipe connecting structure |
-
2019
- 2019-07-01 CN CN201921013301.2U patent/CN210510566U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296293A (en) * | 2019-07-01 | 2019-10-01 | 江苏云皓塑料管件有限公司 | A kind of pipe connecting structure |
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| 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: 20200512 |