CN201335217Y - Trapezoidal threads O-shaped ring sealing connecting pipe fitting of glass reinforced plastic pipeline - Google Patents
Trapezoidal threads O-shaped ring sealing connecting pipe fitting of glass reinforced plastic pipeline Download PDFInfo
- Publication number
- CN201335217Y CN201335217Y CNU2009200989314U CN200920098931U CN201335217Y CN 201335217 Y CN201335217 Y CN 201335217Y CN U2009200989314 U CNU2009200989314 U CN U2009200989314U CN 200920098931 U CN200920098931 U CN 200920098931U CN 201335217 Y CN201335217 Y CN 201335217Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- pipe fitting
- trapezoidal
- shaped ring
- reinforced plastic
- 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 - Fee Related
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Abstract
The utility model relates to a trapezoidal threads O-shaped ring sealing connecting pipe fitting of a glass reinforced plastic pipeline. The pipe fitting comprises an inner threaded fitting and an outer threaded fitting which are sleeved and overlapped in threaded connection. The inner threaded fitting and the outer threaded fitting are connected in the same taper, tooth face lines of threads in meshed connection with the pipe fitting are trapezoidal, a circumferential groove is formed at the head part of the outer threaded fitting, and an elastic O-shaped sealing ring is embedded in the groove. The utility model has the beneficial effects that firstly, the trapezoidal thread O-shaped ring sealing connecting pipe fitting is connected with peculiar threads with large thread pitch and sealed, and also adopts the scheme of double-sealing for sealing of the O-shaped ring; secondly, the connection with peculiar threads with large thread pitch of trapezoidal thread O-shaped ring sealing connecting pipe fitting improves the connection intensity between the pipelines, so that the pipelines are not damaged at the connection part under high pressure; and thirdly, the double-sealing scheme ensures the reliability of sealing pipelines, and even if the first sealing is ineffective due to accidental factors, the second sealing still can ensure the sealing reliability of pipelines.
Description
Technical field
The utility model belongs to the seal arrangement that fiber reinforced plastic pipe connects, and particularly relates to a kind of fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting.
Background technique
At present, known fiber reinforced plastic pipe connects has with seal form: flanged ends face, socket joint be bonding to be connected and sealing, socket joint O type circle seal, API screw thread and seal gease are tightly connected.All there is the pressure rating joint dimension in above-mentioned Connecting format or the narrow limitation of effect is installed, and during greater than 250 millimeters fiber reinforced plastic pipe, because of thrust load is big, then can cause the loosening or pull-off of joint greater than 7MPa, pipe diameter when being applied to pressure.Thereby cause the leakage of pipeline.
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art, and a kind of fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting is provided, and this connection pipe fitting not only join strength height, sealing is reliable, and make easy, easy for installation.
Fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting of the present utility model, be by internal thread tube piece and male element mutually intussusception be threaded and constitute.The intussusception that internal thread tube piece and male element are identical tapering connects, the tooth peak of its connecting thread that is meshed is trapezoidal, at the head of male element all grooves of ring is arranged, and is embedded in elasticity O V-shaped ring at groove.
As further improvement of the utility model, the trapezoidal upper and lower end at described tooth peak, is all greater than trapezoidal height.
Fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting of the present utility model has solved the fiber reinforced plastic pipe diameter and connected the reliability of sealing greater than 250 millimeters, working pressure greater than the fiber reinforced plastic pipe of 7MPa, and is simple in structure easy for installation.Its beneficial effect is: 1, adopt the large screw pitch special thread to connect and sealing, and also have the double-sealing scheme of O type circle sealing; 2, the large screw pitch special thread connects, and has improved the join strength between the pipeline, makes the unlikely damage in pipeline joint when bearing high pressure; 3, the double-sealing scheme has guaranteed the reliability of seal for pipe joints, even first sealing was lost efficacy because of unexpected factor, second sealing still can guarantee the reliability of seal for pipe joints.
Description of drawings
Figure of description is the structural representation of fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting of the present utility model.
Embodiment
Fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting of the present utility model, be by internal thread tube piece 1 and male element 2 mutually intussusception be threaded and constitute.The intussusception that internal thread tube piece 1 and male element 2 are identical tapering connects, the tooth peak 3 of its connecting thread that is meshed is for trapezoidal, at the head of male element 2 all grooves 4 of ring is arranged, and is embedded in elasticity O V-shaped ring 5 at groove 4.
Fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting of the present utility model, be by internal thread tube piece 1 and male element 2 mutually intussusception be threaded and constitute.Internal thread tube piece 1 connects with the intussusception that male element 2 is identical tapering, the tooth peak 3 of its connecting thread that is meshed is trapezoidal and trapezoidal upper and lower hanging down all greater than trapezoidal height, head in male element 2 has all grooves 4 of ring, is embedded in elasticity O V-shaped ring 5 at groove 4.
Claims (2)
1, fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting, be by internal thread tube piece (1) and male element (2) the intussusception formation that is threaded mutually, it is characterized in that internal thread tube piece (1) and male element (2) are the tooth peak (3) of the intussusception connection of identical tapering, its connecting thread that is meshed for trapezoidal, head in male element (2) has ring all grooves (4), is embedded in elasticity O V-shaped ring (5) at groove (4).
2, fiber reinforced plastic pipe trapezoidal thread seal with O ring connection pipe fitting as claimed in claim 1 is characterized in that the trapezoidal upper and lower end, tooth peak (3) is all greater than trapezoidal height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200989314U CN201335217Y (en) | 2009-01-14 | 2009-01-14 | Trapezoidal threads O-shaped ring sealing connecting pipe fitting of glass reinforced plastic pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200989314U CN201335217Y (en) | 2009-01-14 | 2009-01-14 | Trapezoidal threads O-shaped ring sealing connecting pipe fitting of glass reinforced plastic pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335217Y true CN201335217Y (en) | 2009-10-28 |
Family
ID=41286868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200989314U Expired - Fee Related CN201335217Y (en) | 2009-01-14 | 2009-01-14 | Trapezoidal threads O-shaped ring sealing connecting pipe fitting of glass reinforced plastic pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335217Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384791A (en) * | 2010-08-06 | 2013-11-06 | 滨特尔水务有限公司 | High pressure pipe joint |
-
2009
- 2009-01-14 CN CNU2009200989314U patent/CN201335217Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384791A (en) * | 2010-08-06 | 2013-11-06 | 滨特尔水务有限公司 | High pressure pipe joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20091028 Termination date: 20170114 |