CN204784833U - Sealing device of ball valve - Google Patents
Sealing device of ball valve Download PDFInfo
- Publication number
- CN204784833U CN204784833U CN201520432027.8U CN201520432027U CN204784833U CN 204784833 U CN204784833 U CN 204784833U CN 201520432027 U CN201520432027 U CN 201520432027U CN 204784833 U CN204784833 U CN 204784833U
- Authority
- CN
- China
- Prior art keywords
- valve body
- ball core
- valve
- screw thread
- adapter
- 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.)
- Active
Links
Abstract
Sealing device of ball valve, including the valve body, one end system of valve body has a left side to take over, and a left side is taken over the inboard and is set up left ball core O type circle and left ball core sealing washer, and another of valve body sets up the right side and takes over, and the right side is taken over the inboard and is set up right ball core O type circle and right ball core sealing washer, sets up the ball core in the valve body, and ball core and left and right ball core sealing washer sealing contact set up the valve rod at the upside of valve body, and the valve rod directly is connected with the ball core, another connection handle of valve rod, its characterized in that: right side one end system of taking over have the spliced pole, the outer wall system of spliced pole has external screw thread and O type circle groove, sets up the O type of taking over circle in the O type circle groove, has the internal thread in valve body right side inner wall system, for the screw thread passes through the dead band, the length L that the screw thread passed through the dead band is 17mm between internal thread and the valve body tip, the external screw thread of spliced pole is connected with the internal thread of valve body, the takeover O type of spliced pole encloses and the screw thread of valve body passes through dead band inner wall sealing contact.
Description
Technical field
The utility model relates to ball valve, particularly relates to the seal arrangement of ball valve.
Background technique
The structure of ball valve generally comprises valve body, and the joint of valve body and wherein side is integrally manufactured shaping, and opposite side split joint is then connected with valve body by screw thread.Existing valve body 1 ' is by being shaped with bulge loop 3 ' at split joint 2 ' outer wall with the sealing (as shown in Figure 1) of split joint 2 ', seal groove 4 ' is shaped with in bulge loop, O type circle 5 ' is set in seal groove, O type circle contacts with the end part seal of valve body one, and compared with the ball valve of large gauge (if ball valve joint external diameter is about 240mm, ball valve height about 310mm) shrinkage larger, if after valve body shortens, valve body and split joint are together with Screw assembly, the end of valve body cannot contact with O type circle, then can affect the sealing effect at this place, if after valve body extends, valve body and split joint are together with Screw assembly, the spacing of the right ball core seal ring in the left ball core seal ring in valve body and split joint is excessive again, then cause a left side, right ball core seal ring cannot seal with ball core and contact, have impact on the sealing effect of ball core, therefore cause during installation and have a large amount of substandard products, the up-to-standard rate of product is low.
Summary of the invention
The purpose of this utility model is the shortcoming existed to overcome prior art, provides a kind of and improves product installation qualification rate, increase work efficiency, reduce cost of production, be conducive to the seal arrangement of the ball valve that product is produced in enormous quantities.
The technological scheme of the seal arrangement of the utility model ball valve is: comprise valve body, one of valve body is shaped with left adapter, left adapter inner side arranges left ball core O type circle and left ball core seal ring, the other end of valve body arranges right adapter, right adapter inner side arranges right ball core O type circle and right ball core seal ring, ball core is set in valve body, ball core is with left, right ball core seal ring sealing contact, in the upside of valve body, valve rod is set, valve rod one is connected with ball core, valve rod other end connecting handle, it is characterized in that: one of described right adapter is shaped with attachment post, the outer wall of attachment post is shaped with outside thread and O type ring recess, adapter O type circle is set in O type ring recess, on the right side of valve body, inwall is shaped with internal thread, it is screw thread transmission section between internal thread and valve end, the length L of screw thread transmission section is 17mm, the outside thread of attachment post is connected with the internal thread of valve body, the adapter O type circle of attachment post contacts with the screw thread transmission section inner wall sealing of valve body.
The utility model discloses a kind of seal arrangement of ball valve, main feature is on the attachment post of right adapter, be shaped with O type ring recess, O type ring recess is positioned at externally threaded rear side, adapter O type circle is set in O type ring recess, and between the internal thread of valve body and valve end, be screw thread transmission section, the length L of screw thread transmission section is 17mm, valve end and right adapter keep certain gap, if valve body shortens like this, longer screw thread transmission section can keep sealing with adapter O type circle all the time and contacts, if valve body extends, because its end and right adapter have certain gap, thus do not affect valve body and a right nozzle interior left side, the spacing of right ball core seal ring, therefore valve body elongates or shortens the sealability after not affecting ball valve installation, improve ball valve installation qualification rate, increase work efficiency, reduce cost of production, be conducive to ball valve to produce in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the structural representation of the seal arrangement of existing ball valve;
Fig. 2 is the structural representation of the seal arrangement of the utility model ball valve;
Fig. 3 is the A place close-up schematic view of Fig. 2.
Embodiment
The utility model relates to a kind of seal arrangement of ball valve, as shown in Fig. 2-Fig. 3, comprise valve body 1, one of valve body is shaped with left adapter 2, left adapter inner side arranges left ball core O type circle 3 and left ball core seal ring 4, the other end of valve body arranges right adapter 5, right adapter inner side arranges right ball core O type circle 6 and right ball core seal ring 7, ball core 8 is set in valve body 1, ball core is with left, right ball core seal ring 4, 7 sealing contacts, in the upside of valve body, valve rod 9 is set, valve rod one is connected with ball core, valve rod other end connecting handle 10, it is characterized in that: one of described right adapter 5 is shaped with attachment post 11, the outer wall of attachment post is shaped with outside thread and O type ring recess 13, adapter O type circle 14 is set in O type ring recess, on the right side of valve body 1, inwall is shaped with internal thread, it is screw thread transmission section 16 between internal thread and valve end, the length L of screw thread transmission section is 17mm, the outside thread of attachment post is connected with the internal thread of valve body, the adapter O type circle 14 of attachment post 11 contacts with screw thread transmission section 16 inner wall sealing of valve body 1.Main feature is on the attachment post 11 of right adapter 5, be shaped with O type ring recess 13, O type ring recess is positioned at externally threaded rear side, adapter O type circle 14 is set in O type ring recess 13, and between the internal thread of valve body 1 and valve end, be screw thread transmission section 16, the length L of screw thread transmission section is 17mm, valve end and right adapter 5 keep certain gap, if valve body 1 shortens like this, longer screw thread transmission section 16 can keep sealing with adapter O type circle 14 all the time and contacts, if valve body extends, because its end and right adapter 5 have certain gap, thus it is left with right nozzle interior not affect valve body 1, right ball core seal ring 3, the spacing of 4, therefore valve body elongates or shortens the sealability after not affecting ball valve installation, improve ball valve installation qualification rate, increase work efficiency, reduce cost of production, be conducive to ball valve to produce in enormous quantities.
Claims (1)
1. the seal arrangement of ball valve, comprise valve body (1), one of valve body is shaped with left adapter (2), left adapter inner side arranges left ball core O type circle (3) and left ball core seal ring (4), the other end of valve body arranges right adapter (5), right adapter inner side arranges right ball core O type circle (6) and right ball core seal ring (7), ball core (8) is set in valve body (1), ball core is with left, right ball core seal ring (4, 7) sealing contact, valve rod (9) is set in the upside of valve body, valve rod one is connected with ball core, valve rod other end connecting handle (10), it is characterized in that: one of described right adapter (5) is shaped with attachment post (11), the outer wall of attachment post is shaped with outside thread and O type ring recess (13), adapter O type circle (14) is set in O type ring recess, on valve body (1) right side, inwall is shaped with internal thread, it is screw thread transmission section (16) between internal thread and valve end, the length L of screw thread transmission section is 17mm, the outside thread of attachment post is connected with the internal thread of valve body, adapter O type circle (14) of attachment post (11) contacts with screw thread transmission section (16) inner wall sealing of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520432027.8U CN204784833U (en) | 2015-06-23 | 2015-06-23 | Sealing device of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520432027.8U CN204784833U (en) | 2015-06-23 | 2015-06-23 | Sealing device of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784833U true CN204784833U (en) | 2015-11-18 |
Family
ID=54524883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520432027.8U Active CN204784833U (en) | 2015-06-23 | 2015-06-23 | Sealing device of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784833U (en) |
-
2015
- 2015-06-23 CN CN201520432027.8U patent/CN204784833U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204784833U (en) | Sealing device of ball valve | |
| CN203585701U (en) | Compounded pipe hydraulic expansion device | |
| CN202888751U (en) | Simple device for threading seal of cable provided with joint | |
| CN203383954U (en) | Diesel engine high-pressure oil pipe | |
| CN203979723U (en) | Bellows gas range connector | |
| CN204118676U (en) | Seal isolation joint | |
| CN204554164U (en) | A kind of low voltage experiment machine butt joint | |
| CN207830789U (en) | A kind of fastening-pressing type hose attachment device | |
| CN203836461U (en) | Stainless steel liner cross pipe fitting | |
| CN205504332U (en) | Connecting head | |
| CN205689982U (en) | A kind of union elbow assembly of 360 ° of adjustment direction | |
| CN204554169U (en) | A kind of butt joint | |
| CN105952994A (en) | Extrusion connecting device | |
| CN204239920U (en) | Slip-knot pipe fitting | |
| CN203383955U (en) | Diesel engine high-pressure oil pipe | |
| CN203442112U (en) | Cylinder barrel and cylinder cover connecting structure | |
| CN204129274U (en) | For the waterproof plug of the optic fibre exit of image intensifer | |
| CN203585501U (en) | Sealing structure of high-pressure injection needle valve cylinder | |
| CN208816897U (en) | A kind of thread-changing joint with protective device | |
| CN202668923U (en) | Special gas needle for external gas auxiliary injection molding | |
| CN203463820U (en) | Inner joint repairing connector | |
| CN220037848U (en) | Sealing assembly for oil cylinder nozzle | |
| CN204127046U (en) | A kind of connecting rod | |
| CN203322553U (en) | Interpolation compressing type thin-wall stainless steel pipe connecting device | |
| CN209245233U (en) | Booster blocks tooling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: Huangyan Economic Development Zone, Taizhou City, Zhejiang province 318020 Dai Xi Road No. 2 Patentee after: Ad Co.,Ltd. Address before: Huangyan Economic Development Zone, Taizhou City, Zhejiang province 318020 Dai Xi Road No. 2 Patentee before: YONGGAO Co.,Ltd. |