CN204692696U - With the high-temperature resistant ball valve of plastic joint - Google Patents
With the high-temperature resistant ball valve of plastic joint Download PDFInfo
- Publication number
- CN204692696U CN204692696U CN201520350695.6U CN201520350695U CN204692696U CN 204692696 U CN204692696 U CN 204692696U CN 201520350695 U CN201520350695 U CN 201520350695U CN 204692696 U CN204692696 U CN 204692696U
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- CN
- China
- Prior art keywords
- flange
- valve body
- plastic joint
- joint
- ball valve
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of high-temperature resistant ball valve with plastic joint, comprise valve body, be provided with ball valve core in valve body, spool is controlled by handle by valve rod, by the switch control rule ball valve opening and closing of handle.Described valve body one end end face has been fitted and connected the first plastic joint, and the first plastic joint and valve body end face end of fitting is provided with flange; Be provided with annular groove outside described flange, annular groove is embedded in the flange be located at inside the first locking nut, and the first locking nut is threaded the screw thread of valve body periphery.The flange that the utility model is connected inside the first locking nut by the annular groove on turnup structure, form a kind of buckle structure, not only considerably increase tightening force, prevent under high pressure getting loose fault, circular groove structure is at the thickness objectively decreasing flange on the other hand, namely decrease the distortion allowance of plastic joint, avoid at high temperature being out of shape, and this flange surplus is that more can not being out of shape of pressurized causes leakage.
Description
Technical field
The utility model relates to a kind of valve of pipe-line equipment, specifically a kind of high-temperature resistant ball valve with plastic joint.
Background technique
The valve of pipe-line equipment has numerous use history and vast customer demand, existing in the medium transport process of some High Temperature High Pressure, the plastic joint at valve two ends is rely on locking nut to be pressed abd fixed on the end face of valve due to it, can there is distortion in plastics under high-temperature high-pressure state, particularly deliquescing plastic joint can be caused thus under high pressure to go out, depart from valve or on connecting end surface, occur that gap causes the appearance of water leakage fault.Appearance departs from, water leakage fault is the object that those skilled in the art study always how to avoid plastic joint to be at high temperature out of shape.
Summary of the invention
The utility model provides that a kind of structure is simple, the high-temperature resistant ball valve with plastic joint of favorable sealing property.
With a high-temperature resistant ball valve for plastic joint, comprise valve body, be provided with ball valve core in valve body, spool is controlled by handle by valve rod, by the switch control rule ball valve opening and closing of handle.Described valve body one end end face has been fitted and connected the first plastic joint, and the first plastic joint and valve body end face end of fitting is provided with flange; Be provided with annular groove outside described flange, annular groove is embedded in the flange be located at inside the first locking nut, and the first locking nut is threaded the screw thread of valve body periphery.This kind is with the first plastic joint of turnup structure, because it is provided with the flange that annular groove is connected inside the first locking nut on outer side surface, define a kind of buckle structure, this kind of fastening structure not only considerably increases tightening force, prevent under high pressure getting loose fault, circular groove structure is at the thickness objectively decreasing flange on the other hand, namely decrease the distortion allowance of plastic joint, avoid at high temperature being out of shape, and this flange surplus is that more can not being out of shape of pressurized causes leakage.
The described valve body the other end is connected with spool erection joint by internal thread, and spool erection joint end face outside has been fitted and connected the second plastic joint, and the second plastic joint and spool erection joint end face end of fitting is provided with flange; Be provided with annular groove outside described flange, annular groove is embedded in the flange be located at inside the second locking nut, and the second locking nut is threaded the screw thread of spool erection joint periphery.This kind of technical pattern facilitates installation, the assembling of spool by spool erection joint, flange and same employing circular groove structure is connected inside the second locking nut, define a kind of buckle structure, not only considerably increase tightening force, prevent under high pressure getting loose fault, circular groove structure is at the thickness objectively decreasing flange on the other hand, namely decrease the distortion allowance of plastic joint, avoid at high temperature being out of shape, and this flange surplus is that more can not being out of shape of pressurized causes leakage.
Be provided with the polygon-prism hole on more than 4 limits inside described spool erection joint, facilitate the annexation between instrument locking spool erection joint and valve.
Described valve body and the first plastic joint end face of fitting is provided with the first groove having installed the first seal ring, increases sealability.
Described spool erection joint end face outside laminating is provided with the second groove having installed the second seal ring, increases sealability.
The utility model is by the flange inside first, second locking nut that is connected respectively with the circular groove structure on the first plastic joint of turnup structure and the second plastic joint, define a kind of buckle structure and considerably increase tightening force, prevent under high pressure getting loose fault, circular groove structure is at the thickness objectively decreasing flange on the other hand, namely decrease the distortion allowance of plastic joint, avoid at high temperature being out of shape, and this flange surplus is that more can not being out of shape of pressurized causes leakage.
Accompanying drawing explanation
Fig. 1 is the high-temperature resistant ball valve sectional structure schematic diagram of the utility model with plastic joint.
Embodiment
A kind of high-temperature resistant ball valve with plastic joint as shown in Figure 1, comprise valve body 6, be provided with ball valve core 5 in valve body 6, spool 5 is controlled by handle 4 by valve rod 3, valve body 6 one end end face has been fitted and connected the first plastic joint, and the first plastic joint and valve body 6 end face end of fitting is provided with flange.Be provided with annular groove outside flange, annular groove is embedded in the flange be located at inside the first locking nut, and the first locking nut is threaded the screw thread of valve body periphery.
Be connected with spool erection joint 8 as structure preferred valve body 6 the other end by internal thread, spool erection joint 8 end face outside has been fitted and connected the second plastic joint 1, second plastic joint 1 and spool erection joint 8 end face end of fitting and has been provided with flange.Be provided with annular groove outside flange, annular groove is embedded in the flange be located at inside the second locking nut 2, and the second locking nut 2 is threaded the screw thread of spool erection joint 8 periphery.Circular groove structure is connected the flange inside the second locking nut 2, define a kind of buckle structure, not only considerably increase tightening force, prevent under high pressure getting loose fault, circular groove structure is at the thickness objectively decreasing flange on the other hand, namely decrease the distortion allowance of plastic joint, avoid at high temperature being out of shape, and this flange surplus is that more can not being out of shape of pressurized causes leakage.
Be provided with the polygon-prism hole on more than 4 limits inside spool erection joint 8, facilitate the annexation between instrument locking spool erection joint 8 and valve.
Valve body 6 and the first plastic joint end face of fitting is provided with the first groove having installed the first seal ring.Same spool erection joint 8 end face outside laminating is provided with the second groove having installed the second seal ring 7, to improve sealability.
Claims (5)
1. the high-temperature resistant ball valve with plastic joint, comprise valve body, be provided with ball valve core in valve body, spool is controlled by handle by valve rod, it is characterized in that: described valve body one end end face has been fitted and connected the first plastic joint, the first plastic joint and valve body end face end of fitting is provided with flange; Be provided with annular groove outside described flange, annular groove is embedded in the flange be located at inside the first locking nut, and the first locking nut is threaded the screw thread of valve body periphery.
2. as claimed in claim 1 with the high-temperature resistant ball valve of plastic joint, it is characterized in that: the described valve body the other end is connected with spool erection joint by internal thread, spool erection joint end face outside has been fitted and connected the second plastic joint, and the second plastic joint and spool erection joint end face end of fitting is provided with flange; Be provided with annular groove outside described flange, annular groove is embedded in the flange be located at inside the second locking nut, and the second locking nut is threaded the screw thread of spool erection joint periphery.
3., as claimed in claim 2 with the high-temperature resistant ball valve of plastic joint, it is characterized in that: the polygon-prism hole being provided with more than 4 limits inside described spool erection joint.
4. as claimed in claim 1 with the high-temperature resistant ball valve of plastic joint, it is characterized in that: described valve body and the first plastic joint end face of fitting is provided with the first groove having installed the first seal ring.
5. as claimed in claim 2 with the high-temperature resistant ball valve of plastic joint, it is characterized in that: described spool erection joint end face outside laminating is provided with the second groove having installed the second seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350695.6U CN204692696U (en) | 2015-05-18 | 2015-05-18 | With the high-temperature resistant ball valve of plastic joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350695.6U CN204692696U (en) | 2015-05-18 | 2015-05-18 | With the high-temperature resistant ball valve of plastic joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692696U true CN204692696U (en) | 2015-10-07 |
Family
ID=54232991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520350695.6U Expired - Fee Related CN204692696U (en) | 2015-05-18 | 2015-05-18 | With the high-temperature resistant ball valve of plastic joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467992A (en) * | 2021-06-11 | 2022-12-13 | 中国石油管道局工程有限公司 | Special valve strengthening device and valve for pipeline maintenance and emergency repair |
-
2015
- 2015-05-18 CN CN201520350695.6U patent/CN204692696U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467992A (en) * | 2021-06-11 | 2022-12-13 | 中国石油管道局工程有限公司 | Special valve strengthening device and valve for pipeline maintenance and emergency repair |
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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 |
Granted publication date: 20151007 Termination date: 20170518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |