CN103016758A - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN103016758A CN103016758A CN2012105338231A CN201210533823A CN103016758A CN 103016758 A CN103016758 A CN 103016758A CN 2012105338231 A CN2012105338231 A CN 2012105338231A CN 201210533823 A CN201210533823 A CN 201210533823A CN 103016758 A CN103016758 A CN 103016758A
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- CN
- China
- Prior art keywords
- valve
- double
- rod
- spool
- gland nut
- 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.)
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Abstract
The invention discloses a ball valve which comprises a valve seat, a valve cover, a valve core and a valve rod and is characterized in that the valve core is spherical, extending lines of the valve rod and a locating rod do not pass through a sphere core, the valve core rotates around the locating rod, the valve core is in instant separation contact with an outlet, and when the leakage is caused by abrasion after long-term frequent operation, the valve core rotate only along a closing direction so that the leakage is stopped by using eccentric rotation of the valve core. The ball valve has the advantages of simple structure, difficulty in leakage, high reliability, and capability of being frequently operated.
Description
Affiliated technical field
The present invention relates to a kind of valve, especially a kind ofly can remedy the ball valve that spool wearing and tearing cause leakage.
Background technique
At present, the long-time frequent operation mouth of known ball valve is easy to wearing and tearing and causes leakage, because fluid is used widely socially, thereby the valve that causes controlling the fluid conveying is used in a large number, through development for many years, the kind of valve becomes varied, and the leakage problem of valve also becomes more and more thorny simultaneously.Existing valve and valve outlet port distance are definite value, long-time operation is easy to wearing and tearing and causes leakage, can only change spool or valve after leaking, also occur the high durable valve of complex structure on the market, but its high price and complicated structure cause it to be widely used in life.Existing Chinese patent discloses a kind of swinging ball valve such as swinging ball valve (1884881), comprises valve body, valve seat, spheroid, valve rod, valve gap; Between the fluid input of valve body and fluid output, form the inner chamber of an opening upwards, described valve seat is fixedly installed in the body cavity on the fluid output direction madial wall, form sealing between this valve cup bottom facial plane and the valve interior wall, the fluid passage of valve seat is communicated with the fluid passage of valve body, described spheroid is movably placed between the fluid input direction inwall and sealing surface of seat of body cavity, form sealing pair between the sealing surface of spheroid (outer spherical surface) and the valve seat end face, spheroid is connected with valve handle activity, and control it along the ball valve main shaft to swing by valve rod, roll along sealing surface of seat afterwards, be provided with fluid through-hole in the spheroid neutral position, behind the spheroid 90-degree rotation, its fluid through-hole is connected with the fluid passage of valve body and valve seat.
But above-mentioned existing ball valve remains, complex structure, the shortcoming that frequent operation leaks easily.
Summary of the invention
Remain in order to overcome existing ball valve, complex structure, frequent shortcoming of leaking easily the invention provides a kind of ball valve.
The technical solution adopted for the present invention to solve the technical problems is: a kind of ball valve, its composition comprises: valve seat, valve gap, spool, valve rod, it is characterized in that: spool is for spherical, the elongation line of valve rod and positioning rod does not pass through the centre of sphere, spool rotates around positioning rod in valve pocket, spool and outlet disengage, passage connects entrance and exit, positioning rod cooperates with valve pocket bottom positioning hole, valve pocket is positioned at valve seat and connection outlet and entrance, be combined with valve gap on the valve seat, be combined with gland nut on the double-screw bolt of valve gap, valve rod stretches out valve gap and gland nut; The valve gap upper surface is provided with double-screw bolt, and double-screw bolt is that the centre is provided with a vertical through hole and runs through double-screw bolt and valve gap, and valve gap and valve seat contacting part are provided with sealing gasket; The valve gap double-screw bolt is combined with gland nut, is provided with a through hole and diameter in the gland nut top more than or equal to stem diameter, and the gland nut bottom is provided with the tapped hole and the tapped hole that cooperate with double-screw bolt and links to each other with nut top through hole; The valve seat outlet is provided with the wear-resistant seal layer with the spool contact position; The valve rod middle part is provided with disk, and disk upper surface is combined with sealing gasket, and the sealing gasket other end cooperates with at the bottom of the gland nut tapped hole.
The invention has the beneficial effects as follows: simple in structure, be difficult for leaking, reliability is high, but frequent operation.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a kind of ball-valve structure schematic representation of the present invention.
Fig. 2 is a kind of ball valve of the present invention valve pocket schematic top plan view when opening.
Fig. 3 is a kind of ball valve of the present invention schematic top plan view when closing.
Fig. 4 is a kind of ball valve ball valve of the present invention sequence of movement schematic representation.
Fig. 5 is a kind of ball valve gland nut of the present invention structural representation.
Embodiment
In Fig. 1-Fig. 5, valve seat 1 is provided with valve pocket 14, valve pocket 14 is communicated with outlet 9 and entrance 2, valve pocket 14 bottoms are provided with positioning hole 12, be combined with positioning rod 11 with positioning hole 12, positioning rod 11 is provided with the centre of sphere by spool 13 of spherical valve core 13 and positioning rod 11 elongation lines, spool 13 is provided with the through-hole passage 17 vertical with positioning rod 11, when closing spool 13, spool 13 is provided with wear-resistant seal layer 10 with outlet 9 contact position, spool 13 tops and the positioning rod 11 corresponding valve rods 4 that are provided with, valve rod 4 middle parts are provided with positioning disk 7, valve seat 1 top is combined with valve gap 3, valve gap 3 is provided with seal ring 8 with valve seat 1 contact position, valve gap 3 is pressed on the valve seat 1 by bolt 7, valve rod 4 passes valve gap 3 hollow double-screw bolts 15, positioning disk 7 tops and sealing gasket 16 closely cooperate, valve gap 3 double-screw bolts 15 are combined with gland nut 5, be provided with a through hole 19 and diameter in gland nut 5 tops more than or equal to valve rod 4 diameters, gland nut 5 bottoms are provided with the tapped hole 18 and the tapped hole 18 that cooperate with double-screw bolt 15 and link to each other with gland nut 5 top through holes 19, gland nut 5 tapped holes 18 bottoms are combined with the sealing gasket 16 that contacts with positioning disk 7, when opening valve since spool 13 rotate around the positioning rod 11 of off-centre, spool 13 disengagings contact with outlet 9, passage 17 connects entrance 2 and outlet 9, and the position of spool course of action is followed successively by position a during valve open, position b, position c, position d.
Claims (5)
1. ball valve, its composition comprises: valve seat, valve gap, spool, valve rod is characterized in that: spool is for spherical, and the elongation line of valve rod and positioning rod does not pass through the centre of sphere, spool rotates around positioning rod in valve pocket, spool and outlet disengage, and passage connects entrance and exit, and positioning rod cooperates with valve pocket bottom positioning hole, valve pocket is positioned at valve seat and connection outlet and entrance, be combined with valve gap on the valve seat, be combined with gland nut on the double-screw bolt of valve gap, valve rod stretches out valve gap and gland nut.
2. a kind of ball valve according to claim 1, it is characterized in that: the valve gap upper surface is provided with double-screw bolt, and double-screw bolt is that the centre is provided with a vertical through hole and runs through double-screw bolt and valve gap, and valve gap and valve seat contacting part are provided with sealing gasket.
3. according to claim 1 or a kind of ball valve claimed in claim 2, it is characterized in that: the valve gap double-screw bolt is combined with gland nut, be provided with a through hole and diameter in the gland nut top more than or equal to stem diameter, the gland nut bottom is provided with the tapped hole and the tapped hole that cooperate with double-screw bolt and links to each other with nut top through hole.
4. a kind of ball valve according to claim 1 is characterized in that: the valve seat outlet is provided with the wear-resistant seal layer with the spool contact position.
5. a kind of ball valve according to claim 1 is characterized in that: the valve rod middle part is provided with disk, and disk upper surface is combined with sealing gasket, and the sealing gasket other end cooperates with at the bottom of the gland nut tapped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105338231A CN103016758A (en) | 2012-12-12 | 2012-12-12 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105338231A CN103016758A (en) | 2012-12-12 | 2012-12-12 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103016758A true CN103016758A (en) | 2013-04-03 |
Family
ID=47965689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105338231A Pending CN103016758A (en) | 2012-12-12 | 2012-12-12 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016758A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214363A (en) * | 2014-08-29 | 2014-12-17 | 温州市阳泰紧固件有限公司 | Single-mouth ball valve and manufacturing process thereof |
| CN108953658A (en) * | 2018-08-23 | 2018-12-07 | 赵旭锋 | A kind of ball valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062392U (en) * | 1989-09-10 | 1990-09-19 | 陈烁 | Level drop anti-freezing cock valve |
| CN2174602Y (en) * | 1993-11-04 | 1994-08-17 | 青岛市崂山区港西阀门厂 | Ball valve |
| CN2231748Y (en) * | 1995-06-15 | 1996-07-24 | 刘树范 | High-pressure small-bore globe valve |
| CN101191560A (en) * | 2007-03-21 | 2008-06-04 | 杭州先锋电子技术有限公司 | Eccentric electric ball valve |
| CN202992247U (en) * | 2012-12-12 | 2013-06-12 | 苏州萃智新技术开发有限公司 | Ball valve |
-
2012
- 2012-12-12 CN CN2012105338231A patent/CN103016758A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062392U (en) * | 1989-09-10 | 1990-09-19 | 陈烁 | Level drop anti-freezing cock valve |
| CN2174602Y (en) * | 1993-11-04 | 1994-08-17 | 青岛市崂山区港西阀门厂 | Ball valve |
| CN2231748Y (en) * | 1995-06-15 | 1996-07-24 | 刘树范 | High-pressure small-bore globe valve |
| CN101191560A (en) * | 2007-03-21 | 2008-06-04 | 杭州先锋电子技术有限公司 | Eccentric electric ball valve |
| CN202992247U (en) * | 2012-12-12 | 2013-06-12 | 苏州萃智新技术开发有限公司 | Ball valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214363A (en) * | 2014-08-29 | 2014-12-17 | 温州市阳泰紧固件有限公司 | Single-mouth ball valve and manufacturing process thereof |
| CN104214363B (en) * | 2014-08-29 | 2016-06-15 | 温州市阳泰紧固件有限公司 | A kind of single mouth ball valve and manufacturing process thereof |
| CN108953658A (en) * | 2018-08-23 | 2018-12-07 | 赵旭锋 | A kind of ball valve |
| CN108953658B (en) * | 2018-08-23 | 2019-09-10 | 远大阀门集团有限公司 | A kind of ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |