CN200993245Y - Resilient-sealed ball valve - Google Patents
Resilient-sealed ball valve Download PDFInfo
- Publication number
- CN200993245Y CN200993245Y CN 200620157770 CN200620157770U CN200993245Y CN 200993245 Y CN200993245 Y CN 200993245Y CN 200620157770 CN200620157770 CN 200620157770 CN 200620157770 U CN200620157770 U CN 200620157770U CN 200993245 Y CN200993245 Y CN 200993245Y
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- CN
- China
- Prior art keywords
- valve
- ball
- valve body
- soft sealing
- seal 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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Abstract
The utility model discloses a soft airproof ball plug, which relates to a ball valve. The utility model comprises a valve body, a valve ball arranged in the valve body, a valve pole whose extremity is arranged on the upper point of the valve ball, a hand shank and a sealing ring between the valve ball and the valve body; the valve pole passes through the valve body, the outside end extends the valve body and fixedly links to the hand shank. The soft sealing ring also comprises a protection insert arranged inside the sealing ring. The utility model has the advantages of that: as the sealing ring inside increases a protection insert, in effect blocks the erosion and scouring the medium to the sealing ring; adopting the technology proposal prolongs the ball valve useful time.
Description
Technical field
The utility model relates to a kind of ball valve, relates in particular to a kind of soft sealing ball valve.
Background technique
Traditional soft sealing ball valve mainly is made up of parts such as the seal ring between valve body, valve ball, valve rod, valve ball and the valve body, handles.The lower end of valve rod is connected with valve ball, the upper end of valve rod connects handle, through hole on the valve ball and the through hole on the valve body constitute the medium passage of (medium herein refers to gas, liquid, granular solid) jointly, and handle and valve rod drive the valve ball rotation to realize the switching of ball valve.As shown in Figure 1, because seal ring A directly contacts with medium, when medium enters ball valve inside by the access port on the ball valve, can corrode and wash away seal ring.Especially when ball valve is in half-open, semi-closure state, seal ring and valve ball lose and contact and be exposed in the medium fully, under the effect of medium, produce bending deflection and be damaged, particularly when medium is graininess, to the erosion on seal ring surface with wash away more seriously, if seal ring is impaired, medium will leak from here, cause ball valve unavailable, so the working life of ball valve is very short.
The model utility content
In order to solve the problems referred to above that existing ball valve exists, the utility model provides a kind of soft sealing ball valve, can anti-ly wash away, and makes the longer service life of ball valve.
To achieve these goals, the utility model is taked following technological scheme:
A kind of soft sealing ball valve comprises that valve body, the valve ball in valve body, end are connected in the seal ring between valve rod, handle, valve ball and the valve body of valve ball upper end, and described valve rod passes valve body, and its outer end is stretched out valve body and fixedlyed connected with handle.Described soft sealing ball valve also includes the protection edge circle that is positioned at the seal ring inboard.
Because the technological scheme above having adopted, the beneficial effects of the utility model are: owing to increased protection edge circle in the seal ring inboard, can effectively stop medium to the erosion of seal ring with wash away, employing of the present utility model has prolonged the working life of ball valve.
Description of drawings
Fig. 1 is the structural representation of traditional soft seal ball-valve;
Fig. 2 is in the structural representation of opening state for the utility model soft sealing ball valve;
Fig. 3 is in the structural representation of closed condition for the utility model soft sealing ball valve.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is described in detail.
Soft sealing ball valve of the present utility model comprises that valve body, the valve ball in valve body, end are connected in seal ring between valve rod, handle, valve ball and the valve body of valve ball upper end, are positioned at the protection edge circle of seal ring inboard; Valve rod passes valve body, and its outer end is stretched out valve body and fixedlyed connected with handle.Wherein, valve body comprises left valve barrel, right valve barrel again.
As shown in Figure 2; soft sealing ball valve of the present utility model comprises left valve barrel 1, right valve barrel 2, be connected in seal ring 13 between valve rod 4, handle 5, valve ball 3 and the valve body of valve ball 3 upper ends and the protection edge circle 6 that is positioned at seal ring 13 inboards at valve ball 3, ends in the middle of left valve barrel 1, the right valve barrel 2; valve rod 4 passes valve body, and its outer end is stretched out valve body and fixedlyed connected with handle 5.Left valve barrel 1 is fixedlyed connected by screw 7 with right valve barrel 2, and is provided with sealing gasket 12 in the joint of the two and leaks from here to prevent medium.
Left valve barrel 1 is provided with seal groove 8,9, and seal groove 8 is used for placing seal ring 13, and the material of sealing circle 13 is a teflon; Seal groove 9 is used for placing protection edge circle 6; its material is a stainless steel, can be the 1Cr18Ni9 stainless steel, and described protection edge circle 6 is arranged on seal ring 13 inboards; prevent that seal ring 13 from directly contacting with medium, can effectively stop medium to the erosion of seal ring 13 with wash away.
Also be provided with seal groove 8,9 on the right valve barrel 2, seal groove 8 is used for placing the seal ring of being made by teflon 13, is used for placing the protection edge circle of being made by 1Cr18Ni9 in the seal groove 9, is placed with the Packing seat of being made by teflon 14 in the packing groove 10.The top of right valve barrel 2 also is provided with packing groove 10.
Ball valve also includes Gland 11, it is provided with through hole, and this Gland 11 is enclosed within on the valve rod 4 and is pressed on the top of Packing seat 14, utilizes bolt to be connected with right valve barrel and compresses Packing seat 14, thereby reach sealing, the fixing purpose of valve rod 4, prevent that medium from leaking from here.
Above-mentioned seal ring 13 and protection edge circle 6 are the curved surface sealing with the sphere of valve ball 3, and seal ring 13 and protection edge circle 6 are sphere with the surface of contact of valve ball 3, and its curvature equals the spheric curvature of valve ball 3.
Valve ball 3 is positioned at the centre of left valve barrel 1 and right valve barrel 2, valve ball 3 is provided with the through hole by medium, the equal diameters of the through hole on this through-hole diameter and the left and right valve body, under the ball valve opening state, the through hole of through hole on the left and right valve body and valve ball 3 constitutes the passage of medium.The top of valve ball 3 is provided with the device of socket joint valve rod 4.
Valve rod 4 passes Gland 11 and Packing seat 14, the upper end of its lower end socket joint valve ball 3 and extend right valve barrel 2 outward and be connected with handle 5.The diameter of the upper end of valve rod 4 lower ends and valve ball 3 joints is provided with packing groove 10 greater than valve rod 4 upper part diameter between valve rod 4 and the valve body, in establish Packing seat 14.Packing seat 14 tops are provided with Gland 11, and Gland 11 is enclosed within and utilizes bolt to compress Packing seat 14 on the valve rod 4.Like this, when handle with sleeve 5, valve rod 4 drives valve ball 3 rotations, to open and close ball valve.
As shown in Figure 3, be in the structural representation of closed condition for soft sealing ball valve of the present utility model.Handle with sleeve 5, valve rod 4 drive valve balls 3 rotations, and this moment, the passage of medium was cut off owing to the change of the through hole direction on the valve ball 3, thereby reached the purpose of closing ball valve.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those skilled in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (6)
1. soft sealing ball valve; comprise that valve body, the valve ball in valve body, end are connected in the seal ring between valve rod, handle, valve ball and the valve body of valve ball upper end; described valve rod passes valve body; its outer end is stretched out valve body and is fixedlyed connected with handle; it is characterized in that; described soft sealing ball valve also includes protection edge circle, is positioned at the seal ring inboard.
2. soft sealing ball valve as claimed in claim 1 is characterized in that described valve body comprises left valve barrel and right valve barrel, and the two connects by screw.
3. soft sealing ball valve as claimed in claim 2 is characterized in that described right valve barrel is provided with packing groove, is provided with Packing seat in it.
4. soft sealing ball valve as claimed in claim 3 is characterized in that described ball valve also comprises the Gland that is arranged on described Packing seat top.
5. soft sealing ball valve as claimed in claim 4 is characterized in that, described seal ring and protection edge circle are the curved surface sealing with valve ball.
6. as each described soft sealing ball valve in the claim 1 to 5, it is characterized in that the material of described protection edge circle is a stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620157770 CN200993245Y (en) | 2006-11-10 | 2006-11-10 | Resilient-sealed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620157770 CN200993245Y (en) | 2006-11-10 | 2006-11-10 | Resilient-sealed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993245Y true CN200993245Y (en) | 2007-12-19 |
Family
ID=38946320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620157770 Expired - Fee Related CN200993245Y (en) | 2006-11-10 | 2006-11-10 | Resilient-sealed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993245Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782488A (en) * | 2016-04-27 | 2016-07-20 | 邱忠孝 | Novel ball valve |
-
2006
- 2006-11-10 CN CN 200620157770 patent/CN200993245Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782488A (en) * | 2016-04-27 | 2016-07-20 | 邱忠孝 | Novel ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20131110 |