CN2514186Y - Self-positioning sealing valve - Google Patents
Self-positioning sealing valve Download PDFInfo
- Publication number
- CN2514186Y CN2514186Y CN 01221845 CN01221845U CN2514186Y CN 2514186 Y CN2514186 Y CN 2514186Y CN 01221845 CN01221845 CN 01221845 CN 01221845 U CN01221845 U CN 01221845U CN 2514186 Y CN2514186 Y CN 2514186Y
- Authority
- CN
- China
- Prior art keywords
- valve plate
- sealing
- eccentric wheel
- opening
- closing
- 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 discloses a self-positioning sealing valve, which is mainly applied to opening or closing fluid, such as gas, liquid, etc., conveyed in a pipeline. The utility model consists of a sealing seat ring, a valve body shell (I), a valve body shell (II), the driving shaft controlling the opening and closing of a sealed valve plate, a flat key, an eccentric wheel, connecting screw bolts and the sealed valve plate. By means of the flat key (4), the inner hole of the eccentric wheel (5) is arranged on the driving shaft (3),the clearance is formed between the inner hole and the driving shaft, and the sealed valve plate (8) is mounted on the outer circle of the eccentric wheel (5) and can circle the eccentric wheel (5) to make revolution and axial motion at a certain degree. In the course of closing, the sealed valve plate (8) can be nicely jointed with the sealing seat ring (1), thus realizing the self positioning, and the pressure distributed on an annular sealing band is even, thus realizing the optimal sealing performance and eliminating the irreversible plastic deformation caused by the pressure concentration on the annular sealing band.
Description
Affiliated technical field
The utility model is a kind of self-align sealed valve, and it mainly is applicable to opens or be closed in the fluid of carrying in the pipeline (gas, liquid etc.).
Background technique
At present, known butterfly valve (valve a kind of) structure is made up of seal holder ring, valve shell, sealing valve plate driven for opening and closing axle, sealing valve plate.Seal holder ring is fixedly mounted on the valve shell, the sealing valve plate is fixedly mounted on the sealing valve plate driven for opening and closing axle, sealing valve plate driven for opening and closing axle is installed on the valve shell, and corresponding mounting hole is Spielpassung connection (seals valve plate driven for opening and closing axle can around self rotational) on sealing valve plate driven for opening and closing axle and the valve shell.Valve fits by rotation drive sealing valve plate and the seal holder ring that seals valve plate driven for opening and closing axle when closing, and forms an annular sealing strip, and valve is promptly closed; Valve is separated by reverse rotation drive sealing valve plate and the seal holder ring that seals valve plate driven for opening and closing axle when opening, and valve is promptly opened.But also exist some shortcomings, be that valve is when closing, seal holder ring and the sealing valve plate formed annular sealing strip that contacts, exist local contact earlier, all the other major parts have the situation of micro gap, make the pressure distribution on the annular sealing strip extremely inhomogeneous, cause the local irreversible plastic deformation that produces, cause seal failure and premature wear easily, do not reach the normal working life of valve.From the situation of maintenance, the plastic deformation of annular sealing strip has accounted for sizable ratio.
Summary of the invention
In order to overcome existing valve annular sealing strip upward pressure problem pockety, the purpose of this utility model is to provide a kind of self-align sealed valve, it can not only realize the switching of valve, and when closing, seal holder ring is very even with the pressure distribution that the sealing valve plate contacts on the formed annular sealing strip.
The technological scheme that its technical problem that solves the utility model adopts is: the face that is used to seal on the seal holder ring is the part of conical surface, and the face that is used to seal on the sealing valve plate is the part of sphere; Seal holder ring is fixedly mounted on the valve shell, sealing valve plate driven for opening and closing axle is installed on the valve shell, sealing valve plate driven for opening and closing axle and valve shell are that Spielpassung connects (seal valve plate driven for opening and closing axle can around self rotational), between sealing valve plate and the sealing valve plate driven for opening and closing axle eccentric wheel (eccentric interior axially bored line does not overlap with the cylindrical axis) is set, eccentric endoporus interference is installed on the sealing valve plate driven for opening and closing axle and with flat key and is fixedly connected, and the sealing valve plate is installed on the eccentric cylindrical and can certain rotation be arranged and moves axially around eccentric wheel.
The utility model is in the process of closing, though there is seal holder ring and the sealing valve plate formed annular sealing strip that contacts to exist the local situation appearance that all the other major parts have micro gap that contact earlier, but with respect to eccentric wheel certain rotation is arranged and move axially owing to exist the sealing valve plate, in the process that continues to close, sealing valve plate and seal holder ring can be good at mutual applying, realized self-align, the pressure that is distributed on the annular sealing strip is very even, reached the optimal seal performance, eliminated on the annular sealing strip and concentrated the irreversible plastic deformation that is produced because of pressure.
The beneficial effects of the utility model are, valve is in the process of closing, sealing valve plate and seal holder ring can be good at mutual applying, the pressure that is distributed on the annular sealing strip is very even, improved sealability, prolonged working life of the present utility model, especially for gas seal, compare with existing valve, sealing effect is more obvious.Under identical seal request, the machining accuracy of component can suitably reduce.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further specified.
Fig. 1 is a top cross-sectional view of the present utility model.
1. seal holder rings among Fig. 1,2. valve shell I, 3. sealing valve plate driven for opening and closing axle, 4. flat key, 5. eccentric wheel, 6. valve shell II, 7. attachment bolt, 8. sealing valve plate.
Embodiment
The utility model as shown in Figure 1, seal holder ring (1) is fixedly mounted on the valve shell I (2), sealing valve plate driven for opening and closing axle (3) is installed on the valve shell II (6), sealing valve plate driven for opening and closing axle (3) is that Spielpassung connects (seal valve plate driven for opening and closing axle (3) can around self rotational) with valve shell II (6), the endoporus interference of eccentric wheel (5) is installed in sealing valve plate driven for opening and closing axle (3) and upward and with flat key (4) is fixedly connected, sealing valve plate (8) is installed on the cylindrical of eccentric wheel (5) and can certain rotation be arranged and moves axially around eccentric wheel (5), the face that is used to seal on the sealing valve plate (8) is the part of sphere, reaches the optimal seal effect.
The utility model is in the process of closing, though there is seal holder ring (1) and sealing valve plate (8) the formed annular sealing strip that contacts to exist the local situation appearance that all the other major parts have micro gap that contact earlier, but with respect to eccentric wheel (5) certain rotation is arranged and move axially owing to exist sealing valve plate (8), in the process that continues to close, sealing valve plate (8) can be good at mutual applying with seal holder ring (1), realized self-align, the pressure that is distributed on the annular sealing strip is very even, reached the optimal seal performance, eliminated on the annular sealing strip and concentrated the irreversible plastic deformation that is produced, prolonged working life of the present utility model because of pressure.
Claims (2)
1. self-align sealed valve, it comprises seal holder ring, valve shell I, sealing valve plate driven for opening and closing axle, flat key, eccentric wheel, valve shell II, attachment bolt and sealing valve plate, it is characterized in that: eccentric endoporus interference is installed on the sealing valve plate driven for opening and closing axle and with flat key and is fixedly connected, and the sealing valve plate is installed on the eccentric cylindrical and can certain rotation be arranged and moves axially around eccentric wheel.
2. self-align sealed valve according to claim 1 is characterized in that sealing the part that the face that is used to seal on the valve plate is a sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221845 CN2514186Y (en) | 2001-04-26 | 2001-04-26 | Self-positioning sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221845 CN2514186Y (en) | 2001-04-26 | 2001-04-26 | Self-positioning sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2514186Y true CN2514186Y (en) | 2002-10-02 |
Family
ID=33638961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01221845 Expired - Fee Related CN2514186Y (en) | 2001-04-26 | 2001-04-26 | Self-positioning sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2514186Y (en) |
-
2001
- 2001-04-26 CN CN 01221845 patent/CN2514186Y/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 | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Liming Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |