CN2426793Y - Hot melt connecting cross-linked polyethylene pipe - Google Patents
Hot melt connecting cross-linked polyethylene pipe Download PDFInfo
- Publication number
- CN2426793Y CN2426793Y CN 00220438 CN00220438U CN2426793Y CN 2426793 Y CN2426793 Y CN 2426793Y CN 00220438 CN00220438 CN 00220438 CN 00220438 U CN00220438 U CN 00220438U CN 2426793 Y CN2426793 Y CN 2426793Y
- Authority
- CN
- China
- Prior art keywords
- polyethylene pipe
- hot melt
- linked polyethylene
- crosslinked polyethylene
- plastic layer
- 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.)
- Ceased
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Abstract
The utility model relates to a hot melt connecting cross-linked polyethylene pipe, which belongs to the technology that a hot melt connection method is used for connecting cross-linked polyethylene pipes. The hot melt connecting cross-linked polyethylene pipe is characterized in that a layer of thermoplastic plastic layer is arranged outside the cross-linked polyethylene pipe, and a thermoplastic hot melt joint and the thermoplastic plastic layer of the cross-linked polyethylene pipe are mutually connected by a hot melt method. A step which is inwards extended along a radial direction is arranged in the connecting end of the thermoplastic hot melt joint. The end part of the cross-linked polyethylene pipe is extended to the position of the step, wherein, an outer layer of the cross-linked polyethylene pipe is the thermoplastic plastic layer, the inner layer of the aluminum-plastic composite pipe is a polyethylene plastic layer, and an aluminum pipe is arranged between the thermoplastic plastic layer and the polyethylene plastic layer. After the hot melt connecting cross-linked polyethylene pipe is used, the has large connection intensity, convenient operation, and simple structure.
Description
The utility model belongs to a kind of technology of utilizing hot melting and connecting method to connect crosslinked polyethylene pipe.
Crosslinked polyethylene pipe mainly with high density polyethylene (HDPE) as primary raw material, by the effect of high-energy ray or chemical initiator, change the linear macromolecule structure into the space network structure; The cross-linked polyethylene pipe of producing, can under-75 ℃～+ 110 ℃ and 0.6～2MPa pressure, use for a long time, green tubing as a kind of a new generation, the crosslinked polythene pipe has good wholesomeness and comprehensive physical, as broad application temperature range, anti-compressive resistance height, resistance to corrosive chemicals is good, environmental stress crack resistance is excellent, non-corrosive, and do not go mouldy, not breed bacteria, inner wall smooth, good fluidity, heat insulating ability is excellent and in light weight or the like.Therefore be subjected to generally liking of domestic and international users.
But existing crosslinked polyethylene pipe is when connecting, and the dedicated pipe joint that a kind of structure commonly used is quite complicated interconnects various pipe fitting, shown in ZL93206405.1.The disadvantage that this pipe joint brought is a troublesome poeration, and a little less than the bonding strength, sealing is poor, and seepage is also very easily damaged in addition easily, influences its service life.
The purpose of this utility model is the crosslinked polyethylene pipe that utilizes hot melt to connect of a kind of bonding strength height of design, good airproof performance, long service life.
Its main technical schemes is that the thicker thermoplastic plastic layer of one deck is arranged in the end of crosslinked polyethylene pipe, and the thermoplastic plastic layer of thermoplasticity hot melting connector and crosslinked polyethylene pipe utilizes hot melt to interconnect.
Another feature of the present utility model is in the inside of the link of thermoplasticity hot melting connector the step that radially extends internally to be arranged, the end of crosslinked polyethylene pipe extends this step place, wherein, the skin of crosslinked polyethylene pipe is the thermoplastic plastic layer, and internal layer is the crosslinked polyethylene layer.
Another feature of the present utility model is that the inner surface at thermoplasticity hot melting connector linkage section is embedded with the wire that is used to heat, and has two binding posts at least at its outer surface.
The utility model has the advantages that because one deck thermoplastic plastic layer is arranged outside the crosslinked polyethylene layer, thereby can utilize the hot melt connecting tube, with original comparing, its bonding strength is big, easy to operate, good airproof performance, and kept the various advantages that crosslinked polyethylene pipe had again; Secondly, be provided with step-like structure after, be convenient to the location, can improve it and connect precision; In addition, its light-proofness is good, tubing is because the requirement or the drinking water hygiene index request of fluid can not penetrate light, must use the color shading, and the part that directly contacts with fluid can not have other additives such as color because of hygienic requirements, after adopting composite structure of the present utility model, make the ectonexine of tubing can be with different materials, thereby can satisfy the light-proofness requirement, can satisfy non-pigmented requirement again, simultaneously, can also be according to the pipeline of different purposes, adopt different colors, the pipeline of using as combustion gas adopts pipeline red, drinking-water usefulness to adopt green or the like.
Fig. 1 is a kind of structure chart of the present utility model.
As shown in the figure: the linkage section inwall at thermoplasticity hot melting connector 2 has the step 1 that radially extends internally, the linkage section of crosslinked polyethylene pipe stretches into inside, its end contacts with step 1, the skin of crosslinked polyethylene pipe is thermoplastic plastic layer 3, internal layer is a crosslinked polyethylene layer 4, outer surface at thermoplasticity hot melting connector 2 is provided with binding post 5, and inner surface is provided with heating wires.During connection, connect power supply, make thermoplasticity hot melting connector 2 and the mutual welding of crosslinked polyethylene pipe jail.Its heating arrangement is seen ZL95204126.x.
Claims (3)
1, the crosslinked polyethylene pipe of hot melt connection is characterized in that in the end of crosslinked polyethylene pipe the thicker thermoplastic plastic layer of one deck (3) being arranged, and thermoplasticity hot melting connector (2) utilizes hot melt to interconnect with the thermoplastic plastic layer (3) of crosslinked polyethylene pipe.
2, crosslinked polyethylene pipe according to claim 1, it is characterized in that the step (1) that radially extends internally being arranged in the inside of the link of thermoplasticity hot melting connector (2), the end of crosslinked polyethylene pipe extends this step (1) and locates, wherein, the skin of crosslinked polyethylene pipe is thermoplastic plastic layer (3), and internal layer is crosslinked polyethylene layer (4).
3, crosslinked polyethylene pipe according to claim 1 is characterized in that being embedded with the wire that is used to heat at the inner surface of thermoplasticity hot melting connector (2) linkage section, has two binding posts (5) at least at its outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220438 CN2426793Y (en) | 2000-05-25 | 2000-05-25 | Hot melt connecting cross-linked polyethylene pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220438 CN2426793Y (en) | 2000-05-25 | 2000-05-25 | Hot melt connecting cross-linked polyethylene pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2426793Y true CN2426793Y (en) | 2001-04-18 |
Family
ID=33585481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00220438 Ceased CN2426793Y (en) | 2000-05-25 | 2000-05-25 | Hot melt connecting cross-linked polyethylene pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2426793Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404942C (en) * | 2005-12-22 | 2008-07-23 | 甘国工 | Pipe network for connecting metal composite plastic pipe and plastic pipe |
| CN100429448C (en) * | 2004-01-26 | 2008-10-29 | 株式会社Acorn | Heat melting assembling connector for pipeline |
| CN100449192C (en) * | 2005-12-22 | 2009-01-07 | 甘国工 | Pipe network for connecting holed metal skeleton reinforced plastic composite pipe and plastic connector |
| CN108621434A (en) * | 2018-04-30 | 2018-10-09 | 上海英泰塑胶股份有限公司 | The high pressure resistant interface pipe fitting group of continuous fiber reinforced thermoplastic pipeline and its manufacturing method |
-
2000
- 2000-05-25 CN CN 00220438 patent/CN2426793Y/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429448C (en) * | 2004-01-26 | 2008-10-29 | 株式会社Acorn | Heat melting assembling connector for pipeline |
| CN100404942C (en) * | 2005-12-22 | 2008-07-23 | 甘国工 | Pipe network for connecting metal composite plastic pipe and plastic pipe |
| CN100449192C (en) * | 2005-12-22 | 2009-01-07 | 甘国工 | Pipe network for connecting holed metal skeleton reinforced plastic composite pipe and plastic connector |
| CN108621434A (en) * | 2018-04-30 | 2018-10-09 | 上海英泰塑胶股份有限公司 | The high pressure resistant interface pipe fitting group of continuous fiber reinforced thermoplastic pipeline and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20030528 Decision number of declaring invalidation: 5065 |