CN207111971U - A kind of ball valve - Google Patents
A kind of ball valve Download PDFInfo
- Publication number
- CN207111971U CN207111971U CN201720728895.XU CN201720728895U CN207111971U CN 207111971 U CN207111971 U CN 207111971U CN 201720728895 U CN201720728895 U CN 201720728895U CN 207111971 U CN207111971 U CN 207111971U
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- China
- Prior art keywords
- valve
- ball
- annular groove
- seat
- valve seat
- 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 kind of ball valve, including：Valve body, valve ball, valve seat and valve rod in valve body, the valve ball is rotatably installed in valve body by valve rod, and cooperatively forms sealing surface with valve seat；It is provided with the valve body for spacing to valve seat, avoid valve seat due to valve ball pressurization and the boss of displacement, side wall of the boss away from valve ball is provided with first annular groove, and elastic sack body is provided with the first annular groove, and the elastic sack body connects with valve body inner high voltage side.Technical purpose of the present utility model is to provide one kind being capable of the more preferable ball valve of sealing property.
Description
Technical field
Valve technology field is the utility model is related to, more particularly to a kind of ball valve.
Background technology
Ball valve (ball valve) come out in the 1950s, with science and technology rapid development, production technology and
Product structure is updated, and has been developed rapidly as a kind of main valve class.Ball valve is mainly used to cut off in pipeline, divided
Match somebody with somebody and change the flow direction of medium, it only needs just be closed tightly with the operation being rotated by 90 ° and the rotating torque of very little,
But ball valve opening force in opening and closing is larger, when particularly wanting cutoff high fluid, valve ball will have larger power between valve seat
Excellent sealing can be formed, therefore, ball valve can be improved so that the sealing effectiveness of ball valve is more preferable.
Utility model content
Technical purpose of the present utility model is to provide one kind being capable of the more preferable ball valve of sealing property.
The utility model is achieved through the following technical solutions：
Ball valve of the present utility model, including：Valve body, valve ball, valve seat and valve rod in valve body, the valve ball pass through
Valve rod is rotatably installed in valve body, and cooperatively forms sealing surface with valve seat；It is spacing to valve seat provided with being used in the valve body, avoid
Valve seat due to valve ball pressurization and the boss of displacement, side wall of the boss away from valve ball are provided with first annular groove, described first
Elastic sack body is installed, the elastic sack body connects with valve body inner high voltage side in annular groove.
Ball valve of the present utility model, the contact surface of the valve seat and valve ball are provided with the second annular groove, second annular
The sealing ring for being raised in valve base surface is installed in groove.
Ball valve of the present utility model, the quantity of second annular groove and sealing ring is 1~3.
Ball valve of the present utility model, the material of the sealing ring is PTFE materials.
Ball valve of the present utility model, the height of the sealing ring protrusion valve base surface is 0.5~2mm.
Ball valve of the present utility model, the elastic sack body is connected with valve body by the pipeline provided with control valve, in control valve
Pipeline between elastic sack body is provided with branch pipe, and the branch pipe is provided with bleeder valve.
The beneficial effects of the utility model are：
By provided with first annular groove and first annular groove in elastic sack body, elastic bag ball valve closing after, valve
Sealing surface is formed between ball and valve seat, then opens control valve, bleeder valve is closed so that is entered on high-tension side medium
Into elastic bag so that elastic bag expands so that bigger seal pressure is formed between valve seat and valve ball, so as to improve ball
Valve sealing property；And when needing to open valve, first control valve to be closed, opens bleeder valve so that highly pressurised liquid flows out, from
And make it that the pressure between valve seat and valve ball reduces, so that the opening and closing power of valve reduces, valve ball and valve can be substantially reduced
Rubbed between seat, improve the service life of valve.
Brief description of the drawings
Fig. 1 is the structural representation of ball valve.
Marked in figure：1 it is valve body, 2 be valve ball, 3 be valve seat, 4 be bleeder valve, 5 be valve rod, 6 be boss, 7 is elastomeric bladder
Body, 8 be first annular groove, 9 be sealing ring, 10 be the second annular groove, 11 be pipeline, 12 be control valve.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Ball valve as shown in Figure 1, including：Valve body 1, valve ball 2, valve seat 3 and valve rod 5 in valve body 1, the valve ball
2 are rotatably installed in valve body 1 by valve rod 5, and cooperatively form sealing surface with valve seat 3；It is provided with and is used for valve seat in the valve body 1
It is spacing, valve seat 3 is avoided due to the pressurization of valve ball 2 and the boss 6 of displacement, the side wall of the boss 6 away from valve ball 2 are provided with the first ring
Shape groove 8, elastic sack body 7 is installed in the first annular groove 8, the elastic sack body 7 connects with the inner high voltage side of valve body 1, high pressure
When side is that valve is closed, the high side of pressure, the material of elastic sack body 7 is fluorubber or nitrile rubber.
The contact surface of the valve seat 3 and valve ball is provided with the second annular groove 10, is provided with second annular groove 10 convex
Arise from the sealing ring 9 on the surface of valve seat 3.The quantity of second annular groove 10 and sealing ring 9 is 1~3, can be 2, Neng Gougeng
So that the sealing effectiveness of ball valve is more preferable.The material of the sealing ring 9 is PTFE materials, and the sealing ring of PTFE materials enables to valve
The opening and closing power of door is smaller, also make it that sealing is more preferable, being capable of high temperature resistant and low temperature.
The height that the sealing ring 9 protrudes the surface of valve seat 3 is 0.5~2mm, preferably 1mm, so as to increase sealing
Reliability, will not also make it that the opening and closing power of valve is excessive.
The elastic sack body 7 is connected with valve body 1 by the pipeline 11 provided with control valve 12, in control valve 12 and elastic sack body
Pipeline 11 between 7 is provided with branch pipe, and the branch pipe is provided with bleeder valve 4.
By provided with first annular groove 8 and first annular groove 8 in elastic sack body 7, elastic bag 7 ball valve close
Afterwards, sealing surface is formed between valve ball 2 and valve seat 3, then opens control valve 12, bleeder valve 4 is closed so that in high-pressure side
Medium enter in elastic bag 7 so that elastic bag 7 is expanded so that bigger sealing is formed between valve seat 3 and valve ball 2
Pressure, so as to improve ball valve sealing performance；And when needing to open valve, first control valve 12 is closed, opens bleeder valve 4,
So that highly pressurised liquid flows out, so that the pressure between valve seat 3 and valve ball 2 reduces, so that the opening and closing power of valve reduces,
It can substantially reduce and be rubbed between valve ball 2 and valve seat 3, improve the service life of valve.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (6)
- A kind of 1. ball valve, it is characterised in that including：Valve body (1), valve ball (2), valve seat (3) and valve rod in valve body (1) (5), the valve ball (2) is rotatably installed in valve body (1) by valve rod (5), and cooperatively forms sealing surface with valve seat (3)；It is described Be provided with valve body (1) be used for it is spacing to valve seat, avoid valve seat (3) due to valve ball (2) pressurization and displacement boss (6), it is described Side wall of the boss (6) away from valve ball (2) is provided with first annular groove (8), and elastic sack body is provided with the first annular groove (8) (7), the elastic sack body (7) connects with valve body (1) inner high voltage side.
- 2. ball valve according to claim 1, it is characterised in that the valve seat (3) and the contact surface of valve ball are provided with second Annular groove (10), second annular groove (10) is interior to be provided with the sealing ring (9) for being raised in valve seat (3) surface.
- 3. ball valve according to claim 2, it is characterised in that the quantity of second annular groove (10) and sealing ring (9) For 1~3.
- 4. the ball valve according to Claims 2 or 3, it is characterised in that the material of the sealing ring (9) is PTFE materials.
- 5. ball valve according to claim 4, it is characterised in that the height on the sealing ring (9) protrusion valve seat (3) surface is 0.5~2mm.
- 6. ball valve according to claim 4, it is characterised in that the elastic sack body (7) is with valve body (1) by provided with control The pipeline (11) of valve (12) is connected, and branch pipe, the branch are provided with the pipeline (11) between control valve (12) and elastic sack body (7) Pipe is provided with bleeder valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720728895.XU CN207111971U (en) | 2017-06-21 | 2017-06-21 | A kind of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720728895.XU CN207111971U (en) | 2017-06-21 | 2017-06-21 | A kind of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111971U true CN207111971U (en) | 2018-03-16 |
Family
ID=61578665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720728895.XU Expired - Fee Related CN207111971U (en) | 2017-06-21 | 2017-06-21 | A kind of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111971U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426055A (en) * | 2018-02-24 | 2018-08-21 | 江苏盐电阀门有限公司 | Half cun of metal sealing floating ball valve |
| CN109404557A (en) * | 2018-12-20 | 2019-03-01 | 启东市冶金机械有限公司 | Flexible sealing pulverized coal spraying ball valve |
| CN111623137A (en) * | 2020-06-11 | 2020-09-04 | 精工阀门有限公司 | Quick-release sealing ball valve |
| CN113236811A (en) * | 2021-04-30 | 2021-08-10 | 浙江联大锻压有限公司 | All-welded ball valve cover |
-
2017
- 2017-06-21 CN CN201720728895.XU patent/CN207111971U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426055A (en) * | 2018-02-24 | 2018-08-21 | 江苏盐电阀门有限公司 | Half cun of metal sealing floating ball valve |
| CN109404557A (en) * | 2018-12-20 | 2019-03-01 | 启东市冶金机械有限公司 | Flexible sealing pulverized coal spraying ball valve |
| CN111623137A (en) * | 2020-06-11 | 2020-09-04 | 精工阀门有限公司 | Quick-release sealing ball valve |
| CN113236811A (en) * | 2021-04-30 | 2021-08-10 | 浙江联大锻压有限公司 | All-welded ball valve cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20180621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |