CN107940124A - A kind of plastic-steel composite three-way pipe fitting and preparation method thereof - Google Patents
A kind of plastic-steel composite three-way pipe fitting and preparation method thereof Download PDFInfo
- Publication number
- CN107940124A CN107940124A CN201711414358.9A CN201711414358A CN107940124A CN 107940124 A CN107940124 A CN 107940124A CN 201711414358 A CN201711414358 A CN 201711414358A CN 107940124 A CN107940124 A CN 107940124A
- Authority
- CN
- China
- Prior art keywords
- plastic tube
- tube body
- metal shell
- plastic
- perforate
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 109
- 229920003023 plastic Polymers 0.000 claims abstract description 109
- 238000003466 welding Methods 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 77
- 229910052751 metal Inorganic materials 0.000 claims description 77
- 238000007789 sealing Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000037237 body shape Effects 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
Classifications
-
- 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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- 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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/10—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe the extremity of the pipe being screwed into the wall
Abstract
The invention discloses a kind of plastic-steel composite three-way pipe fitting and preparation method thereof, the connector of second plastic tube body bottom is inserted directly into the perforate II of the first plastic tube body side wall by the present invention, the each several part stress balance of second plastic tube body, phenomena such as being not in deformation, even if perforate II is shunk, it also only the more can be connected the more tight with connector, the situation reduced without aperture；Further, it is plug-type connection mode between the first plastic tube body and the second plastic tube body, easier, more firm than traditional welding mode, service life is longer.
Description
Technical field
The present invention relates to a kind of tee pipe fitting, and in particular to a kind of plastic-steel composite three-way pipe fitting and preparation method thereof.
Background technology
Plastic steel composite pipe part is the lining plastic layer in metal shell, combines metal tube intensity height, plastic inner lining tube wall
The features such as smooth, corrosion-resistant, non-corrosive, be a kind of up-and-coming construction material.But existing plastic-steel composite three-way pipe fitting leads to
Frequently with such as lower structure：It includes the first metal shell, is arranged in the first metal shell the first plastic tube body, be arranged on
The perforate of one metal shell and the first plastic tube body side wall and the second metal shell and the second plastics being connected in the perforate
Tube body, since the remaining stress of tapping is larger, and under the action of Fluid pressure, the aperture of perforate can be gradually reduced, especially
It it is the early period used, its speed reduced reaches average monthly 3-5mm, and aperture reduces the reduction for not only resulting in flow, also has
The risk of pipe shaft explosion, it is therefore desirable to be improved to product.
The content of the invention
The plastic-steel composite three-way pipe fitting and its making that a kind of connective stability provided by the present invention is high, aperture will not reduce
Method.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of plastic-steel composite three-way pipe fitting, including the first metal shell, be arranged in the first metal shell the first plastic tube body,
The perforate I of the first metal shell side wall is arranged on, the perforate II of the first plastic tube body side wall is arranged on, is connected in perforate I
Second metal shell and the second plastic tube body being connected in perforate II, the periphery of the perforate II are equipped with outwardly ring
Shape boss, second plastic tube body includes plastic tube main body, to be arranged on plastic tube bottom part body downwardly projecting and be inserted into perforate
Connector in II, the annular rib for being arranged on connector top and being pressed on annular convex platform and it is arranged on plastic tube body top
Flange, the perforate I are equipped with connecting tube, and second metal shell is set in plastic tube main body and is connected with connecting tube.
In the present invention, the contact surface of the annular convex platform and annular rib is equipped with sealing ring.
In the present invention, the lower part of second metal shell is pressed on annular rib.
In the present invention, the plastic tube main body is equipped with annular groove, is equipped with bushing in annular groove, outside second metal
Shell is fixedly connected with bushing.
A kind of production method of plastic-steel composite three-way pipe fitting, it is characterised in that comprise the following steps：
Step 1, the first plastic tube body and the second plastic tube body are made using polyethylene, using metal be made the first metal shell,
Connecting tube and the second metal shell, hold perforate I successfully on the first metal shell；The connecting tube carries internal thread, and described
Two plastic tube bodies include plastic tube main body, are arranged on the downwardly projecting connector of plastic tube bottom part body, are arranged on connector top
Annular rib and the flange for being arranged on plastic tube body top；
Step 2, treats that tapping welding polyethylene makes the increase of its thickness, then by the first plastic tube body in the first plastic tube body
It is inserted into the first metal shell, the both ends of the first plastic tube body is then carried out by flange by flange body；
Step 3, local heating is carried out at perforate I to the side wall of the first plastic tube body, then is made the side wall shaping by mould
It forms the perforate II with annular convex platform, and the internal diameter of the perforate II is more than the outside diameter of the connector of the second plastic tube body；
Step 4, connecting tube is welded in perforate I, and just surrounds annular convex platform；
Step 5, the second metal shell is fixedly connected with the second plastic tube body, and the bottom of second metal shell is equipped with outer
The connector of second plastic tube body bottom, is then inserted into perforate II by screw thread, and the second metal shell of rotation makes itself and connecting tube
Connection, so as to complete the making of plastic-steel composite three-way pipe fitting.
In the present invention, in step 5, mill out annular groove in the upper surface of annular convex platform and be put into sealing ring, then again
By in the connector insertion perforate II of the second plastic tube body bottom.
In the present invention, in step 5, it is as follows that the second metal shell with the second plastic tube body is fixedly connected with mode：It is described
The internal diameter of second metal shell is less than the outside diameter of annular rib, and the second metal shell is from top to bottom sleeved on the second plastic tube body directly
It is pressed in the bottom of the second metal shell on annular rib, the top of the second plastic tube body then is carried out flange again makes the second gold medal
Belong to shell be axially and radially fixedly connected with the second plastic tube body.
In the present invention, in step 5, it is as follows that the second metal shell with the second plastic tube body is fixedly connected with mode：Institute
State plastic tube main body and be equipped with annular groove, be equipped with bushing in annular groove, the second metal shell is sleeved on the second plastic tube body, then
Bushing and the second metal shell are welded.
The beneficial effects of the invention are as follows：The connector of second plastic tube body bottom is inserted directly into the first plastic tube body by the present invention
In the perforate II of side wall, phenomena such as each several part stress balance of the second plastic tube body is not in deformation, even if perforate II carries out
Shrink, also only the more can be connected the more tight with connector, the situation reduced without aperture；Further, the first plastic tube body and
It is plug-type connection mode between two plastic tube bodies, easier, more firm than traditional welding mode, service life is longer.
Brief description of the drawings
The present invention is further described with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the structure diagram of embodiment one；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the part A enlarged drawing of Fig. 1；
Fig. 4 is the production process figure of embodiment one；
Fig. 5 is the structure diagram of embodiment two.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.Therefore, the reality of the invention to providing in the accompanying drawings below
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, belongs to the scope of protection of the invention.
Embodiment one：Referring to the drawings 1 to Fig. 4, the described a kind of plastic-steel composite three-way pipe fitting of the present embodiment, including first
Metal shell 1, the first plastic tube body 2 being arranged in the first metal shell 1, the perforate I for being arranged on 1 side wall of the first metal shell
3rd, the second metal shell 5 for be arranged on the perforate II 4 of 2 side wall of the first plastic tube body, being connected in perforate I 3 and it is connected to out
The second plastic tube body 6 on hole II 4, the periphery of the perforate II 4 are equipped with outwardly annular convex platform 7, second plastics
Tube body 6 include plastic tube main body, be arranged on plastic tube bottom part body it is downwardly projecting and be inserted into perforate II 4 connector 8, be arranged on
8 top of connector is simultaneously pressed in the annular rib 9 on annular convex platform 7 and is arranged on the flange of plastic tube body top, the perforate I
3 are equipped with connecting tube 10, and the connection mode of 10 and first metal shell 1 of connecting tube is welding, and the top of connecting tube 10 is set
There is internal thread, the lower part of the second metal shell 5 is equipped with external screw thread, and the second metal shell 5 is set in plastic tube main body and with connecting
Adapter 10 connects, and being twisted between the second metal shell 5 and connecting tube 10 must be tighter, then the second plastic tube body 6 and the first plastic tube body 2
Connect closer.
To strengthen leakproofness, the contact surface of the annular convex platform 7 and annular rib 9 is equipped with sealing ring 11, for ease of right
Sealing ring 11 is positioned, and the top of the annular convex platform 7 is equipped with the annular groove for being used for placing sealing ring 11.In the present embodiment
In, the internal diameter of second metal shell 5 is less than the outside diameter of annular rib 9, and the second metal shell 5 is from top to bottom sleeved on the second modeling
On the expects pipe body 6 until bottom of the second metal shell 5 is pressed on annular rib 9, then again by the top of the second plastic tube body 6 into
Row flange makes the second metal shell 5 be axially and radially fixedly connected with the second plastic tube body 6.
The production method of the present embodiment is as follows：
Step 1, is made the first plastic tube body 2 and the second plastic tube body 6 using polyethylene, is made using metal outside the first metal
Shell 1,10 and second metal shell 5 of connecting tube, perforate I 3 is held successfully on the first metal shell 1；The connecting tube 10 is with interior
Screw thread, second plastic tube body 6 include plastic tube main body, are arranged on the downwardly projecting connector 8 of plastic tube bottom part body, set
8 top of connector annular rib 9 and be arranged on the flange of plastic tube body top, realize the first plastic tube body 2 and second
Plastic tube body 6 is axially and radially being fixedly connected；
Step 2, treats that tapping welding polyethylene makes the increase of its thickness, its increased thickness is 1.5 in the first plastic tube body 2
First plastic tube body 2, is then inserted into the first metal shell 1 by 2 wall thickness of the first plastic tube body again, then will by flange body
The both ends of first plastic tube body 2 carry out flange；
Step 3, carries out the side wall of the first plastic tube body 2 at perforate I 3 local heating, then by mould by the side wall shaping
The perforate II 4 with annular convex platform 7 is formed it into, the internal diameter of the perforate II 4 is more than the outside diameter of the connector 8 of the second plastic tube body 6,
The height that the annular convex platform 7 protrudes is more than the pipe thickness of the second metal shell 5.
Step 4, connecting tube 10 is welded in perforate I 3, and just surrounds annular convex platform 7；
Step 5, the internal diameter of second metal shell 5 are less than the outside diameter of annular rib 9, and the second metal shell 5 from top to bottom covers
Until the bottom of the second metal shell 5 is pressed on annular rib 9, then again by the second plastic tube body 6 on the second plastic tube body 6
Top carry out flange the second metal shell 5 is axially and radially being fixedly connected with the second plastic tube body 6；Second metal
The bottom of shell 5 is equipped with external screw thread, mills out annular groove in the upper surface of annular convex platform 7 and is put into sealing ring 11, then by second
The connector 8 of 6 bottom of plastic tube body is inserted into perforate II 4, and rotating the second metal shell 5 makes it be connected with connecting tube 10, so that
Complete the making of plastic-steel composite three-way pipe fitting.
Embodiment two：Referring to the drawings 5, the structure and principle and embodiment one of the present embodiment are essentially identical, its difference
It is the connection mode of the second metal shell 5 and the second plastic tube body 6.In the present embodiment, the second metal shell 5 and the second modeling
It is as follows that expects pipe body 6 is fixedly connected with mode：It is equipped with annular groove in the plastic tube main body, is equipped with bushing 12 in annular groove, second
Metal shell 5 is sleeved on the second plastic tube body 6, is then welded bushing 12 and the second metal shell 5.
The foregoing is merely the preferred embodiments of the present invention, as long as realizing the skill of the object of the invention with essentially identical means
Art scheme is belonged within protection scope of the present invention.
Claims (8)
1. a kind of plastic-steel composite three-way pipe fitting, including the first metal shell（1）, be arranged on the first metal shell（1）Interior first
Plastic tube body（2）, be arranged on the first metal shell（1）The perforate I of side wall（3）, be arranged on the first plastic tube body（2）Side wall is opened
Hole II（4）, be connected to perforate I（3）On the second metal shell（5）And it is connected to perforate II（4）On the second plastic tube body
（6）, it is characterised in that：The perforate II（4）Periphery be equipped with outwardly annular convex platform（7）, second plastic tube body
（6）Including plastic tube main body, to be arranged on plastic tube bottom part body downwardly projecting and be inserted into perforate II（4）Interior connector（8）, set
In connector（8）Top is simultaneously pressed in annular convex platform（7）On annular rib（9）And the flange of plastic tube body top is arranged on,
The perforate I（3）It is equipped with connecting tube（10）, second metal shell（5）Be set in plastic tube main body and and connecting tube
（10）Connection.
A kind of 2. plastic-steel composite three-way pipe fitting according to claim 1, it is characterised in that：The annular convex platform（7）With ring
Shape rib（9）Contact surface be equipped with sealing ring（11）.
A kind of 3. plastic-steel composite three-way pipe fitting according to claim 1 or 2, it is characterised in that：Second metal shell
（5）Lower part be pressed in annular rib（9）On.
A kind of 4. plastic-steel composite three-way pipe fitting according to claim 1 or 2, it is characterised in that：In the plastic tube main body
Equipped with annular groove, bushing is equipped with annular groove（12）, second metal shell（5）With bushing（12）It is fixedly connected.
5. a kind of production method of plastic-steel composite three-way pipe fitting, it is characterised in that comprise the following steps：
Step 1, the first plastic tube body is made using polyethylene（2）With the second plastic tube body（6）, the first gold medal is made using metal
Belong to shell（1）, connecting tube（10）And second metal shell（5）, in the first metal shell（1）On hold perforate I successfully（3）；It is described
Connecting tube（10）With internal thread, second plastic tube body（6）Including plastic tube main body, be arranged on plastic tube bottom part body to
The connector of lower protrusion（8）, be arranged on connector（8）The annular rib on top（9）And it is arranged on the flange of plastic tube body top；
Step 2, in the first plastic tube body（2）Treat tapping welding polyethylene make its thickness increase, then by the first plastic tube
Body（2）It is inserted into the first metal shell（1）It is interior, then by flange body by the first plastic tube body（2）Both ends carry out flange；
Step 3, in perforate I（3）Place is to the first plastic tube body（2）Side wall carry out local heating, then by mould by the side wall
Shaping forms it into band annular convex platform（7）Perforate II（4）, the perforate II（4）Internal diameter be more than the second plastic tube body（6）'s
Connector（8）Outside diameter；
Step 4, by connecting tube（10）It is welded to perforate I（3）On, and just surround annular convex platform（7）；
Step 5, by the second metal shell（5）With the second plastic tube body（6）It is fixedly connected, second metal shell（5）Bottom
Portion is equipped with external screw thread, then by the second plastic tube body（6）The connector of bottom（8）It is inserted into perforate II（4）It is interior, and rotate the second metal
Shell（5）Make itself and connecting tube（10）Connection, so as to complete the making of plastic-steel composite three-way pipe fitting.
A kind of 6. production method of plastic-steel composite three-way pipe fitting according to claim 5, it is characterised in that：In step 5
In, in annular convex platform（7）Upper surface mill out annular groove and be put into sealing ring（11）, then again by the second plastic tube body（6）Bottom
The connector in portion（8）It is inserted into perforate II（4）It is interior.
A kind of 7. production method of plastic-steel composite three-way pipe fitting according to claim 5, it is characterised in that：In step 5
In, the second metal shell（5）With the second plastic tube body（6）It is as follows to be fixedly connected with mode：Second metal shell（5）Internal diameter
Less than annular rib（9）Outside diameter, the second metal shell（5）From top to bottom it is sleeved on the second plastic tube body（6）Above until the second gold medal
Belong to shell（5）Bottom be pressed in annular rib（9）On, then again by the second plastic tube body（6）Top carry out flange make second
Metal shell（5）With the second plastic tube body（6）Axially and radially it is being fixedly connected.
A kind of 8. production method of plastic-steel composite three-way pipe fitting according to claim 5, it is characterised in that：In step 5
In, the second metal shell（5）With the second plastic tube body（6）It is as follows to be fixedly connected with mode：Ring is equipped with the plastic tube main body
Shape groove, annular groove is interior to be equipped with bushing（12）, the second metal shell（5）It is sleeved on the second plastic tube body（6）On, then by bushing（12）
With the second metal shell（5）Welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711414358.9A CN107940124A (en) | 2017-12-25 | 2017-12-25 | A kind of plastic-steel composite three-way pipe fitting and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711414358.9A CN107940124A (en) | 2017-12-25 | 2017-12-25 | A kind of plastic-steel composite three-way pipe fitting and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107940124A true CN107940124A (en) | 2018-04-20 |
Family
ID=61938853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711414358.9A Pending CN107940124A (en) | 2017-12-25 | 2017-12-25 | A kind of plastic-steel composite three-way pipe fitting and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107940124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953387A (en) * | 2021-10-14 | 2022-01-21 | 陕西科技大学 | Three-way pipe forming method and device based on pipe flanging and thick-direction extrusion composite deformation |
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