CN205745622U - A kind of with the valve sealing structure - Google Patents
A kind of with the valve sealing structure Download PDFInfo
- Publication number
- CN205745622U CN205745622U CN201521144012.8U CN201521144012U CN205745622U CN 205745622 U CN205745622 U CN 205745622U CN 201521144012 U CN201521144012 U CN 201521144012U CN 205745622 U CN205745622 U CN 205745622U
- Authority
- CN
- China
- Prior art keywords
- valve
- annular groove
- annular
- sealing
- thrust ring
- 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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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a kind of with the valve sealing structure, described valve includes valve rod, upper cover and valve plate, valve body, sealing structure it is provided with between described valve rod and valve body, described sealing structure includes box nut, thrust ring, the first seal groove it is disposed with from top to bottom in described upper box nut, first annular groove and the second annular groove, first sealing ring is used in combination with described first seal groove, described first annular groove and the second annular groove are used in combination with the first annular projection being arranged on valve rod and the second annular lug respectively, it is provided with thrust ring below described upper box nut, utilize structure of the present utility model can reach preferable sealing effectiveness, it is easy to be extended and applied.
Description
Technical field
This utility model relates to the valve technology field that control piper cut-offs, and particularly relates to a kind of with the valve sealing structure.
Background technology
Valve in transport flow medium pipeline, traditional sealing means is the deflection of airtight and watertight padding by filling between valve rod and upper cover and reaches valve stem seal.Making airtight and watertight padding produce abrasion owing to the revolving valve rod of valve rod produces spin friction with airtight and watertight padding, after causing valve to use for a long time, sealing function is lost, thus in causing valve, medium leaks outside.
Utility model content
The purpose of this utility model is for technological deficiency present in prior art, and provides a kind of with the valve sealing structure.
nullFor realizing the purpose of this utility model，This utility model be the technical scheme is that a kind of with the valve sealing structure，Described valve includes valve rod、Upper cover and valve plate、Valve body，Sealing structure it is provided with between described valve rod and valve body，Described sealing structure includes box nut、Thrust ring，The first seal groove it is disposed with from top to bottom in described upper box nut、First annular groove and the second annular groove，Described first sealing ring is used in combination with described first seal groove，Described first annular groove and the second annular groove are used in combination with the first annular projection being arranged on valve rod and the second annular lug respectively，It is provided with thrust ring below described upper box nut，It is provided with the second sealing ring between described upper box nut and thrust ring，Described thrust ring lateral wall is connected with described upper cover inwall，The 3rd annular groove and fourth annular groove it is provided with in described thrust ring，Described 3rd annular groove and fourth annular groove are used in combination with the 3rd annular lug being arranged on valve rod and fourth annular projection respectively，The 3rd sealing ring it is provided with below described thrust ring.
Compared with prior art, the beneficial effects of the utility model are: utilize structure of the present utility model can reach preferable sealing effectiveness, it is simple to promotion and application.
Accompanying drawing explanation
Fig. 1 show the structural representation of this utility model first embodiment；
Fig. 2 show the structural representation of the upper box nut that this utility model provides；
Fig. 3 show the structural representation of the thrust ring that this utility model provides；
In figure: 1-valve rod, 2-the first sealing ring, the upper box nut of 3-, 4-the second sealing ring, 5-upper cover, 6-thrust ring, 7-the 3rd sealing ring.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Should be noted that, " connection " described herein and be used for expressing the word of " connection ", such as " being connected ", " being connected " etc., it both may refer to a certain parts and had been directly connected to another parts, it is also possible to refers to a certain parts and is connected with another parts by miscellaneous part.
Embodiment 1
nullAs shown in Figure 1-Figure 3，The present embodiment provides a kind of with the valve sealing structure，Described valve includes valve rod、Upper cover and valve plate、Valve body，Sealing structure it is provided with between described valve rod and valve body，Described sealing structure includes box nut、Thrust ring，The first seal groove it is disposed with from top to bottom in described upper box nut、First annular groove and the second annular groove，Described first sealing ring is used in combination with described first seal groove，Described first annular groove and the second annular groove are used in combination with the first annular projection being arranged on valve rod and the second annular lug respectively，It is provided with thrust ring below described upper box nut，It is provided with the second sealing ring between described upper box nut and thrust ring，Described thrust ring lateral wall is connected with described upper cover inwall，The 3rd annular groove and fourth annular groove it is provided with in described thrust ring，Described 3rd annular groove and fourth annular groove are used in combination with the 3rd annular lug being arranged on valve rod and fourth annular projection respectively，The 3rd sealing ring it is provided with below described thrust ring.
In order to strengthen the sealing between upper cover and valve body, bottom face at described upper cover is provided with annular shoulder, the upper surface of described valve body is provided with valve body recess, described annular shoulder is used in combination with described valve body recess, and it is provided with sealing ring between the two, good sealing effectiveness can be realized by this structure.
The lower end of described valve rod is provided with screw thread, and described valve rod is connected with described valve plate by screw thread, the when of use, by rotary screw, valve plate is risen or fallen.
Embodiment 2
In order to prevent from existing below valve plate on valve body groove in the present embodiment, so that stockpile more material in groove, thus affecting sealing, valve plate bottom face is set to the structure with arcuate groove by the present embodiment, on the corresponding position of valve body, the structure arc bump being used in combination with arcuate groove is set, use such structure, both can realize sealing effectiveness well, and, arc bump structure is set, also will not hinder the flowing of medium.
Embodiment 3
Owing to valve cannot observe the Guan Bi degree of valve plate effectively, therefore, in the present embodiment, valve rod arranges graduation mark, it is thus possible to effectively monitor the Guan Bi degree of valve plate.
Embodiment 4
In order to realize automatically controlling of ball valve in the present embodiment, the present embodiment provides a kind of simple in construction, the preferable control structure of effect, and valve rod top is provided with travelling gear, and travelling gear is connected with driving rack, driving rack is connected with the piston rod of cylinder, and described cylinder is connected with air pump.Controlling tooth bar stretching motion by cylinder, thus control travelling gear and realize the opening and closing of ball valve, both simple in construction, cost is the lowest, and effect might as well.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; on the premise of without departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (1)
- null1. the valve with sealing structure，It is characterized in that，Described valve includes valve rod、Upper cover and valve plate、Valve body，Sealing structure it is provided with between described valve rod and valve body，Described sealing structure includes box nut、Thrust ring，The first seal groove it is disposed with from top to bottom in described upper box nut、First annular groove and the second annular groove，First sealing ring is used in combination with described first seal groove，Described first annular groove and the second annular groove are used in combination with the first annular projection being arranged on valve rod and the second annular lug respectively，It is provided with thrust ring below described upper box nut，It is provided with the second sealing ring between described upper box nut and thrust ring，Described thrust ring lateral wall is connected with described upper cover inwall，The 3rd annular groove and fourth annular groove it is provided with in described thrust ring，Described 3rd annular groove and fourth annular groove are used in combination with the 3rd annular lug being arranged on valve rod and fourth annular projection respectively，The 3rd sealing ring it is provided with below described thrust ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521144012.8U CN205745622U (en) | 2015-12-31 | 2015-12-31 | A kind of with the valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521144012.8U CN205745622U (en) | 2015-12-31 | 2015-12-31 | A kind of with the valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205745622U true CN205745622U (en) | 2016-11-30 |
Family
ID=57387543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521144012.8U Expired - Fee Related CN205745622U (en) | 2015-12-31 | 2015-12-31 | A kind of with the valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205745622U (en) |
-
2015
- 2015-12-31 CN CN201521144012.8U patent/CN205745622U/en not_active Expired - Fee Related
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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: 20161130 Termination date: 20211231 |