CN203297657U - Ball valve for fixing ball - Google Patents
Ball valve for fixing ball Download PDFInfo
- Publication number
- CN203297657U CN203297657U CN201320322874XU CN201320322874U CN203297657U CN 203297657 U CN203297657 U CN 203297657U CN 201320322874X U CN201320322874X U CN 201320322874XU CN 201320322874 U CN201320322874 U CN 201320322874U CN 203297657 U CN203297657 U CN 203297657U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- ball
- spheroid
- groove
- 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 - Lifetime
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Abstract
The utility model provides a ball valve for a fixing ball. The ball valve for the fixing ball comprises a valve body, a spring, a pressing board, a valve seat, a sealing ring, an upper valve rod, a ball body and a lower valve rod. The upper end of the ball body is fixedly connected with the upper valve rod, and the lower end of the ball body is fixedly connected with the lower valve rod; the two sides of the ball body on the valve body are respectively provided with a valve body groove, and the valve seat is arranged in the valve body groove and can slide along the valve body groove; a groove is formed in the outer circle of the valve seat, and the sealing ring used for sealing the valve seat and the valve body is mounted in the groove; the pressing board is arranged on one end portion, away from the ball body, of the valve seat, and abuts against the sealing ring; the spring is arranged between the pressing board and the bottom end face of the valve body groove. Due to the fact that the spring is arranged at the tail end of the valve seat, the fact that the sealing ring always has enough pre-tightening force is ensured; if the sealing surface is abraded during the using process of the valve, the valve can still be well sealed under the action of the spring, and therefore the ball valve for the fixing ball is high in sealing reliability.
Description
Technical field
The utility model belongs to the ball valve field, is specifically related to a kind of fixedly spherical ball valve.
Background technique
Fixedly spherical ball valve is high-performance ball valve of new generation, is applicable to long-distance transport pipes and general industry pipeline, and its intensity, Security, adverse environment resistant etc. have carried out special consideration when design, be applicable to various corrosivity and non-aggressive medium.It is compared with floating ball valve, during work, the active force that before valve, hydrodynamic pressure produces on spheroid all passes to bearing, spheroid is moved to valve seat, thereby valve seat can not bear excessive pressure, so the torque of fixing ball valve is little, the valve seat distortion is little, sealability is stable, long service life, is applicable to high pressure, heavy caliber occasion.At present, the phenomenons such as seal failure easily appear in fixedly spherical ball valve on the market after work a period of time, and this has directly affected the working life of ball valve.
The model utility content
The utility model is for above-mentioned the deficiencies in the prior art, and better fixing spherical ball valve of a kind of sealability is provided.
The utility model is achieved by the following technical solution:
A kind of fixedly spherical ball valve, comprise valve body, spring, pressing plate, valve seat, seal ring, upper valve rod, spheroid and lower valve rod, be provided with liquid entering hole and liquid outlet on valve body, spheroid is in valve body in the inner chamber between liquid entering hole and liquid outlet, the upper end of spheroid is fixedly connected with upper valve rod, and the lower end of spheroid is fixedly connected with lower valve rod; Be respectively arranged with a valve body groove on valve body in the both sides of spheroid, valve seat is arranged in the valve body groove, and can slide along described valve body groove; Be provided with a groove on the cylindrical of valve seat, the seal ring for seal valve seat and valve body is installed in described groove; An end away from spheroid of valve seat is fixed with pressing plate, described pressing plate and seal ring butt; Be provided with spring between the bottom end of described pressing plate and valve body groove.
Further setting of the present utility model is, described spring is helical spring or belleville spring.
Further setting of the present utility model is, upper valve rod, lower valve rod and spheroid are structure as a whole.
Further setting of the present utility model is, described valve body comprises left and right two valve gaps and upper and lower two sealing seats, and upper and lower two sealing seats all link together left and right two valve gaps by stay bolt.
In fixedly spherical ball valve described in the utility model, spheroid, by upper and lower valve rod supporting and location, is done the used time at pressure medium, and spheroid is without the displacement of valve axis direction.Two valve seats can slide in the valve body groove, the sphere push valve seat slides and the Compress Spring distortion in the valve body groove when the spheroid expanded by heating, makes the unlikely stuck akinesia of spheroid; The utility model arranges spring at the valve seat tail end, can guarantee on seal ring to have all the time enough pretightening forces, if valve in use during sealing surface wear, still can continue to guarantee excellent sealing at the spring action lower valve, therefore the sealing reliability of fixedly spherical ball valve described in the utility model is higher.
Description of drawings
Fig. 1 is the structural drawing of fixedly spherical ball valve described in the utility model;
In figure, each label is: valve body 1, spring 2, pressing plate 3, valve seat 4, seal ring 5, upper valve rod 6, spheroid 7, lower valve rod 8.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model provides a kind of fixedly spherical ball valve, comprise valve body 1, spring 2, pressing plate 3, valve seat 4, seal ring 5, upper valve rod 6, spheroid 7 and lower valve rod 8, be provided with liquid entering hole and liquid outlet on valve body 1, in the inner chamber of spheroid 7 between the interior liquid entering hole of valve body 1 and liquid outlet, the upper end of spheroid 7 is fixedly connected with upper valve rod 6, and the lower end of spheroid 7 is fixedly connected with lower valve rod 8; Be respectively arranged with a valve body groove on valve body 1 in the both sides of spheroid 7, valve seat 4 is arranged in the valve body groove, and can slide along described valve body groove; Be provided with a groove on the cylindrical of valve seat 4, be equipped with in described groove for the seal ring 5 of seal valve seat 4 with valve body 1; An end away from spheroid 7 of valve seat 4 is fixed with pressing plate 3, described pressing plate 3 and seal ring 5 butts; Be provided with spring 2 between the bottom end of described pressing plate 3 and valve body groove, described spring 2 is helical spring or belleville spring.
In the utility model, upper valve rod 6, lower valve rod 8 and spheroid can be Split type structure, also can be structure as a whole.Described valve body 1 comprises left and right two valve gaps and upper and lower two sealing seats, and upper and lower two sealing seats all link together left and right two valve gaps by stay bolt, the inner valve pocket that forms.
Claims (4)
1. fixing spherical ball valve, it is characterized in that, comprise valve body (1), spring (2), pressing plate (3), valve seat (4), seal ring (5), upper valve rod (6), spheroid (7) and lower valve rod (8), valve body is provided with liquid entering hole and liquid outlet on (1), spheroid (7) is arranged in the inner chamber between valve body (1) liquid entering hole and liquid outlet, the upper end of spheroid (7) is fixedly connected with upper valve rod (6), and the lower end of spheroid (7) is fixedly connected with lower valve rod (8); Valve body (1) is upper is respectively arranged with a valve body groove in the both sides of spheroid (7), and valve seat (4) is arranged in the valve body groove, and can slide along described valve body groove; Be provided with a groove on the cylindrical of valve seat (4), be equipped with in described groove for the seal ring (5) of seal valve seat (4) with valve body (1); An end away from spheroid (7) of valve seat (4) is fixed with pressing plate (3), described pressing plate (3) and seal ring (5) butt; Be provided with spring (2) between the bottom end of described pressing plate (3) and valve body groove.
2. fixedly spherical ball valve according to claim 1, is characterized in that, described spring (2) is helical spring or belleville spring.
3. fixedly spherical ball valve according to claim 1, is characterized in that, upper valve rod (6), lower valve rod (8) and spheroid are structure as a whole.
4. fixedly spherical ball valve according to claim 1, is characterized in that, described valve body (1) comprises left and right two valve gaps and upper and lower two sealing seats, and upper and lower two sealing seats all link together left and right two valve gaps by stay bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320322874XU CN203297657U (en) | 2013-06-04 | 2013-06-04 | Ball valve for fixing ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320322874XU CN203297657U (en) | 2013-06-04 | 2013-06-04 | Ball valve for fixing ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297657U true CN203297657U (en) | 2013-11-20 |
Family
ID=49573665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320322874XU Expired - Lifetime CN203297657U (en) | 2013-06-04 | 2013-06-04 | Ball valve for fixing ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570488A (en) * | 2016-02-03 | 2016-05-11 | 台州苏捷制阀有限公司 | DC low-voltage IC card electric ball valve |
| CN108953650A (en) * | 2017-05-22 | 2018-12-07 | 湖南北科通用阀门有限公司 | A kind of electric magnetic ball valve for being not easy to reveal |
-
2013
- 2013-06-04 CN CN201320322874XU patent/CN203297657U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570488A (en) * | 2016-02-03 | 2016-05-11 | 台州苏捷制阀有限公司 | DC low-voltage IC card electric ball valve |
| CN108953650A (en) * | 2017-05-22 | 2018-12-07 | 湖南北科通用阀门有限公司 | A kind of electric magnetic ball valve for being not easy to reveal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |