CN213177145U - Composite reinforced plastic pipe connecting joint with end capable of being butt-welded - Google Patents
Composite reinforced plastic pipe connecting joint with end capable of being butt-welded Download PDFInfo
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- CN213177145U CN213177145U CN202021936181.6U CN202021936181U CN213177145U CN 213177145 U CN213177145 U CN 213177145U CN 202021936181 U CN202021936181 U CN 202021936181U CN 213177145 U CN213177145 U CN 213177145U
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- joint
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- 239000002990 reinforced plastic Substances 0.000 title claims abstract description 14
- 239000002131 composite material Substances 0.000 title claims description 16
- 230000004323 axial length Effects 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000005253 cladding Methods 0.000 abstract description 16
- 239000004033 plastic Substances 0.000 abstract description 12
- 229920003023 plastic Polymers 0.000 abstract description 12
- 238000003466 welding Methods 0.000 abstract description 7
- 230000002968 anti-fracture Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000035618 desquamation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model provides a but end butt welding's compound reinforced plastic tubular product attach fitting, include: the pipe comprises a pipe body and a joint connector, wherein a connecting section is arranged at the end part of the pipe wall of the pipe body and is divided into a flaring section and a flat section, the overall shape of the flaring section is conical, the flat section and the pipe body are concentric, and the joint connector covers the connecting section. The utility model discloses an utilize and mould plastics the formation of moulding plastics to pipe ends inside and outside wall and connect, realize the trilateral complete cladding of pipe ends, need the sheathed length part with the tubular product inlayer to flare into straight section mouth, correct the ovality, revise the internal diameter size, straight section inlayer and outer cladding thickness are unanimous when guaranteeing to mould plastics, make the joint design of cladding have stronger stretch-proofing anti fracture ability, and the security performance is better, prevents the fracture of section interface more effectively.
Description
Technical Field
The utility model relates to a pipe connection technical field particularly, relates to a but end butt welding's compound reinforced plastic tubular product attach fitting.
Background
The polyethylene steel wire framework reinforced pipe, the mesh steel belt reinforced plastic pipe, the aluminum-plastic composite pipe, the polyester reinforced composite pipe, the glass fiber cloth winding reinforced composite pipe and the like are novel products which can improve the compression strength of the plastic pipe, reduce creep deformation, improve the use temperature and widen the use field, and are widely applied to many fields of water supply, drainage, fire fighting, crude oil transportation, gas, electric power, communication, chemical industry and the like. The existing composite pipes of polyethylene water supply steel wire framework reinforced pipes, mesh steel belt reinforced pipes, aluminum-plastic reinforced pipes and the like can not be butt-welded, only flanges, haversian, electric melting pipe connection and other modes can be adopted, the cost is high, leakage is easy to occur due to the fact that the electric melting welding time, temperature and gaps of large diameters are not well mastered, and the existing steel framework composite pipes with plastic ends, which are adopted in the same technology, have two-side and three-side coating, and have no coating on two sides and an inner layer, water is easy to seep from end faces, the butt welding strength is used for a long time, and the strength of the butt welding pipe can not exceed the body strength and can not bear larger axial force. To trilateral cladding, the inlayer needs to reduce the internal diameter size of cladding part and just can realize, because tubular product has certain ovality, the internal diameter is inhomogeneous when handling, needs to correct, otherwise the problem of ovality is difficult to solve, and it is complicated to solve the process, and production efficiency is low, can not solve the inlayer cladding degree of consistency difference, easy desquamation scheduling problem.
SUMMERY OF THE UTILITY MODEL
For solving prior art not enough, the utility model discloses a to the heating of tubular product tip, need the sheathed length part with the tubular product inlayer to flare into straight section mouth, the internal diameter flaring also can be for toper (the internal diameter entrance point is little, the tip internal diameter is big) or back taper), corrects the ovality, revises the internal diameter size, guarantees that inlayer and outer cladding thickness are unanimous, also can be according to the size of flaring internal diameter at will, adjusts inlayer cladding thickness and outer cladding thickness.
The embodiment of the utility model discloses a realize through following technical scheme:
a butt weldable composite reinforced plastic pipe connector comprising: the pipe comprises a pipe body and a joint connector, wherein a connecting section is arranged at the end part of the pipe wall of the pipe body and is divided into a flaring section and a flat section, the overall shape of the flaring section is conical, the flat section and the pipe body are concentric, and the joint connector covers the connecting section.
The axial length of the straight section is at least 3 times the axial length of the flared section.
The joint connector is fixed at the end of the pipe body through an injection molding process.
The joint connector is in a ring shape.
The inner diameter circle of the joint connector in the shape of a circular ring is concentric with the inner diameter circle of the pipe body.
The connecting section is a part formed by flaring the end part of the pipe body.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
the utility model discloses an utilize and mould plastics the formation of moulding plastics to pipe ends inside and outside wall and connect, realize the trilateral complete cladding of pipe ends, the length part that needs the cladding with the tubular product inlayer flares into straight section mouth, correct the ovality, revise the internal diameter size, straight section inlayer is unanimous with outer cladding thickness when guaranteeing to mould plastics, the joint design that makes the cladding has stronger anti-stretching anti fracture ability, also can adjust the size of flaring external diameter, adjustment inlayer cladding thickness and outer cladding thickness, thereby can realize the effective butt joint of tip micro deformation pipeline, therefore, the suitability is strong. The produced pipe with the welded joint has the advantages that the connection strength exceeds the strength of the body, the production is simple, the production efficiency is high, the safety performance is better, and the fracture of a section interface is effectively prevented.
Drawings
FIG. 1 is a schematic view of an unprocessed pipe;
FIG. 2 is a schematic view of the end of the tube after flaring;
FIG. 3 is a schematic view of the injection molded joint connector;
FIG. 4 is a schematic view of a tube weld;
icon: 1-pipe body, 2-connecting section, 3-joint connector, 4-welding point, 201-flaring section, 202-straight section
Detailed Description
Referring to fig. 2 and 3, a butt weldable composite reinforced plastic pipe connection joint includes: the pipe comprises a pipe body 1 and a joint connector 3, wherein a connecting section 2 is arranged at the end part of the pipe wall of the pipe body 1, the connecting section 2 is divided into a flaring section 201 and a flat section 202, the overall shape of the flaring section 201 is conical, the flat section 202 is concentric with the pipe body 1, the connecting section 2 is a part formed by flaring of the end part of the pipe body 1, the flaring is similar to a bell mouth, the joint connector 3 is fixed at the end part of the pipe body 1 through an injection molding process, and the joint connector 3 completely covers the connecting section 2 at the end part of the pipe body 1 during injection molding, so that a pipe with a welding joint.
The axial length of the straight section 202 is at least 3 times greater than the axial length of the flared section 201, so that the length of the cladding of the joint connector 3 is sufficiently long, and the clad joint structure has stronger tensile and fracture resistance.
The joint connector 3 is formed in a circular ring shape because it is injection-molded along the end pipe wall. The injection-molded joint connector 3 completely covers the connecting section 2, and also partially covers the outer wall of the pipe body 1 to form a stable joint structure.
In the preferred embodiment, the inner diameter circle of the circular ring shape of the joint connector 3 is concentric with the inner diameter circle of the pipe body 1, and because the outer diameter of the flaring segment 201 can be adjusted during manufacturing, the covered joint connector 3 can be adjusted to a larger inner diameter size, so that two pipe bodies 1 with different calibers can be butted.
The preparation method of the composite reinforced plastic pipe connecting structure with the end capable of being butt-welded comprises the following steps:
1. the end of the tube is first heated, see fig. 1.
2. The heated end tubing is then straightened and flared into a bell mouth, see fig. 2.
3. And maintaining the injection molding pressure or the extrusion pressure, and cooling and shaping.
4. And (4) loosening the movable die, withdrawing the pipe or extracting the die core, and forming the pipe, referring to fig. 3.
Referring to fig. 4, two pipes with welded joints can be connected by means of a welded joint connector 3, the injection molding material of the joint connector 3 is preferably polypropylene, and plastic welding is a connection method that the contact surfaces of two plastic parts are fused at the same time by a heating method so that the two plastic parts are combined into a whole.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention, which is defined by the appended claims and their equivalents.
Claims (6)
1. A butt weldable composite reinforced plastic pipe connector comprising: the pipe comprises a pipe body (1) and a joint connector (3), and is characterized in that a connecting section (2) is arranged at the end part of the pipe wall of the pipe body (1), the connecting section (2) is divided into an expanding section (201) and a flat section (202), the integral shape of the expanding section (201) is conical, the flat section (202) is concentric with the pipe body (1), and the joint connector (3) covers the connecting section (2).
2. The butt weldable composite reinforced plastic pipe connection of claim 1, wherein the straight section (202) has an axial length at least 3 times greater than an axial length of the flared section (201).
3. The butt weldable composite reinforced plastic pipe connector according to claim 1, wherein the connector (3) is fixed to the end of the pipe body (1) by an injection molding process.
4. The butt weldable composite reinforced plastic pipe connecting joint according to claim 1, wherein the joint connecting body (3) is in the shape of a circular ring.
5. The butt weldable composite reinforced plastic pipe connecting joint according to claim 4, wherein the annular inner diameter circle of the joint connector (3) is concentric with the inner diameter circle of the pipe body (1).
6. The butt weldable composite reinforced plastic pipe connecting joint according to claim 1, wherein the connecting section (2) is a portion formed by flaring an end of the pipe body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936181.6U CN213177145U (en) | 2020-09-07 | 2020-09-07 | Composite reinforced plastic pipe connecting joint with end capable of being butt-welded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936181.6U CN213177145U (en) | 2020-09-07 | 2020-09-07 | Composite reinforced plastic pipe connecting joint with end capable of being butt-welded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213177145U true CN213177145U (en) | 2021-05-11 |
Family
ID=75771410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021936181.6U Active CN213177145U (en) | 2020-09-07 | 2020-09-07 | Composite reinforced plastic pipe connecting joint with end capable of being butt-welded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213177145U (en) |
-
2020
- 2020-09-07 CN CN202021936181.6U patent/CN213177145U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 611230 north section of Hongye Road, Chongzhou Economic Development Zone, Chengdu, Sichuan Patentee after: Kangtai Plastic Technology Co.,Ltd. Address before: 611230 north section of Hongye Road, Chongzhou Economic Development Zone, Chengdu, Sichuan Patentee before: Kangtai Plastic Technology Group Co.,Ltd. |