CN201202922Y - Plastic pipe sealing joint - Google Patents
Plastic pipe sealing joint Download PDFInfo
- Publication number
- CN201202922Y CN201202922Y CNU2008200880425U CN200820088042U CN201202922Y CN 201202922 Y CN201202922 Y CN 201202922Y CN U2008200880425 U CNU2008200880425 U CN U2008200880425U CN 200820088042 U CN200820088042 U CN 200820088042U CN 201202922 Y CN201202922 Y CN 201202922Y
- Authority
- CN
- China
- Prior art keywords
- metal connecting
- pipe
- plastic
- seal
- tube
- 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 - Lifetime
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model belongs to the pipeline joint technology field, in particular to a plastic pipe seal joint. A metal connecting pipe is nested at the plastic pipe connecting end, and the seal joint is characterized in that two or more inverted tooth maze grooves are arranged on the pipe wall of the metal connecting pipe which is nested in the plastic pipe. Because two or more inverted tooth maze grooves are arranged on the pipe wall of the metal connecting pipe which is nested in the plastic pipe, the plastic pipe seal joint can make the plastic pipe be more tightly connected with the metal connecting pipe. And adding a seal groove at the metal connecting pipe end and installing a special O shape seal ring further improve the seal performance of the joint. The plastic seal joint does not have leakage phenomenon under high temperature, and has fine seal effect, thereby being suitable for population and application.
Description
Technical field
The utility model belongs to the pipe coupling technical field, is specially the plastic tube SEALING FITTING.
Background technique
Under the policy background of China's " to mould Dai Gang ", the PPR pipe has obtained in the cold and hot water supply system using widely in building with its excellent performance.As the important component part that the PPR pipe-line system connects, whether the connection of PPR band inserts pipe fitting reliably has a far reaching influence.PPR band copper insert pipe fitting directly adopts the copper insert and the PPR material that contain twice rectangle maze trough to pass through mold injection molding in traditional processing technology.Because PPR material and copper insert linear expansion are in different size, when pipe fitting uses under high-temperature and high-pressure conditions, water electrode is easily from inserts and plastics mating face seepage, add that the PPR pipeline is mainly used in concealed work, the later period maintenance difficulty is big, therefore, develop a kind of technical support pipe fitting sealing and just seem very important.
The model utility content
At the above-mentioned problems in the prior art, the purpose of this utility model is to design the technological scheme that a kind of plastic tube SEALING FITTING is provided, and its good airproof performance the seepage phenomenon can not occur under high-temperature and high-pressure conditions.
Described plastic tube SEALING FITTING, plastic tube connecting end interlocking are provided with metal connecting tube, it is characterized in that rabbeting twice or twice being set with upper inverted tooth shape maze trough on the metal connecting tube tube wall in plastic tube.
Described plastic tube SEALING FITTING is characterized in that the tube wall tail end of metal connecting tube is equipped with seal groove, and O-ring seals is installed in the seal groove.
Described plastic tube SEALING FITTING is characterized in that on the metal connecting tube front end tube wall connecting thread being set.
Above-mentioned plastic tube SEALING FITTING, twice or twice are set with upper inverted tooth shape maze trough on the metal connecting tube tube wall of interlocking in plastic tube, it is tightr to make that plastic tube engages with metal connecting tube, and increase by a road sealing groove at the metal connecting tube tail end, and a special-purpose O-ring seals is installed, further strengthened the sealability of joint.This plastic tube SEALING FITTING the seepage phenomenon can not occur under high-temperature and high-pressure conditions, good sealing effect is suitable for applying.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Among the figure: 1-plastic tube, 2-pawl shape maze trough, 3-metal connecting tube, 3a-connecting thread, 4-O shape seal ring, 5-seal groove.
Embodiment
The utility model is described in further detail below in conjunction with Figure of description:
As shown in the figure, the interlocking of plastic tube 1 connecting end is provided with metal connecting tube 3, twice or twice are set with upper inverted tooth shape maze trough 2 on metal connecting tube 3 tube walls of interlocking in plastic tube 1, change existing inserts twice rectangle maze trough into twice or the pawl shape maze trough 2 more than the twice, make plastic tube 1 engage tightr with metal connecting tube 3.The tube wall tail end of metal connecting tube 3 is equipped with seal groove 5, and O-ring seals 4 is installed in the seal groove 5, has further strengthened the sealability of joint.On the metal connecting tube 3 front end tube walls connecting thread 3a is set, is used for being spirally connected with water tap or other pipeline.Under normal temperature and 2.0MPa test pressure condition, the seepage phenomenon appears in 20 sealing sample joints ends, thoroughly solves the seepy question of traditional plastic joint.
Claims (3)
1, plastic tube SEALING FITTING, the interlocking of plastic tube (1) connecting end is provided with metal connecting tube (3), it is characterized in that being provided with on metal connecting tube (3) tube wall of interlocking in plastic tube (1) twice or twice with upper inverted tooth shape maze trough (2).
2, plastic tube SEALING FITTING as claimed in claim 1 is characterized in that the tube wall tail end of metal connecting tube (3) is equipped with seal groove (5), and O-ring seals (4) is installed in the seal groove (5).
3, plastic tube SEALING FITTING as claimed in claim 1 is characterized in that on metal connecting tube (3) the front end tube wall connecting thread (3a) being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200880425U CN201202922Y (en) | 2008-05-30 | 2008-05-30 | Plastic pipe sealing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200880425U CN201202922Y (en) | 2008-05-30 | 2008-05-30 | Plastic pipe sealing joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202922Y true CN201202922Y (en) | 2009-03-04 |
Family
ID=40425233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200880425U Expired - Lifetime CN201202922Y (en) | 2008-05-30 | 2008-05-30 | Plastic pipe sealing joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201202922Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881242A (en) * | 2010-03-25 | 2010-11-10 | 山东华盛农业药械股份有限公司 | Vibration reduction inlet pipe for gasoline engine |
| CN101988607A (en) * | 2009-07-30 | 2011-03-23 | 上海龙胜实业有限公司 | Strengthened sealing structure for metal insert in plastic pipe fitting |
| CN102102787A (en) * | 2011-02-21 | 2011-06-22 | 河北建投宝塑管业有限公司 | Flexible composite connection pipe fitting for large-aperture plastic pipeline |
| CN103562611A (en) * | 2011-09-26 | 2014-02-05 | 帕沃·艾多德维奇·麦呢科夫 | Pipe fitting element for connecting a polypropylene pipe and a metal pipe |
| CN104110552A (en) * | 2014-06-11 | 2014-10-22 | 王茂峰 | Steel-plastic transition pipe fitting for fuel gas delivery pipeline |
-
2008
- 2008-05-30 CN CNU2008200880425U patent/CN201202922Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988607A (en) * | 2009-07-30 | 2011-03-23 | 上海龙胜实业有限公司 | Strengthened sealing structure for metal insert in plastic pipe fitting |
| CN101881242A (en) * | 2010-03-25 | 2010-11-10 | 山东华盛农业药械股份有限公司 | Vibration reduction inlet pipe for gasoline engine |
| CN102102787A (en) * | 2011-02-21 | 2011-06-22 | 河北建投宝塑管业有限公司 | Flexible composite connection pipe fitting for large-aperture plastic pipeline |
| CN103562611A (en) * | 2011-09-26 | 2014-02-05 | 帕沃·艾多德维奇·麦呢科夫 | Pipe fitting element for connecting a polypropylene pipe and a metal pipe |
| CN103562611B (en) * | 2011-09-26 | 2016-08-17 | 帕沃·艾多德维奇·麦呢科夫 | For connecting the pipe fitting of polypropylene pipe and metallic conduit |
| CN104110552A (en) * | 2014-06-11 | 2014-10-22 | 王茂峰 | Steel-plastic transition pipe fitting for fuel gas delivery pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |
|
| CX01 | Expiry of patent term |