CN2333844Y - Forced sealing ball valve - Google Patents
Forced sealing ball valve Download PDFInfo
- Publication number
- CN2333844Y CN2333844Y CN 98229556 CN98229556U CN2333844Y CN 2333844 Y CN2333844 Y CN 2333844Y CN 98229556 CN98229556 CN 98229556 CN 98229556 U CN98229556 U CN 98229556U CN 2333844 Y CN2333844 Y CN 2333844Y
- Authority
- CN
- China
- Prior art keywords
- valve
- ball core
- ball
- valve rod
- valve body
- 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 forced sealing ball valve, comprising a valve body, a valve seat which is positioned in the valve body, a ball core which is matched with the valve seat, a seal component, and a lifting mechanism which is connected with the ball core and is composed of a valve cap, a support frame, a valve rod and a hand wheel. The lower part of the ball core is provided with a swinging head which is positioned in the valve body, and the upper part of the ball core is provided with an axle pin which is used for enabling the ball core to swing. The lower end of the valve rod is provided with an inclined plane structure which is provided axially with 180 DEG, and the inclined plane on the lower end of the valve rod is matched with the shaft pin on the ball core in a sliding way. The utility model has the advantages of sealing reliability, long service life, being suitable for being used as a stop valve in oil and gas gathering and transporting pipes and chemical flow pipes.
Description
The utility model relates to a kind of valve, particularly relates to a kind of forced seal ball valve.
At present, industrial ball valve is generally the floating ball ball valve of universal design and fixing two kinds of forms of spherical ball valve, its sealing is the sealing force that relies on the pressure of the pretension of seating spring and medium to produce, ball core and valve seat fit tightly in the opening and closing operations process, produce very big frictional force (being sealing force) and act on the seal ring on the valve seat, easily cause the wearing and tearing of sealing pair, thereby make valve produce interior the leakage.
The purpose of this utility model is to provide the forced seal of a kind of dependence mechanical force, and ball core and valve base sealing ring do not have rubbing contact in the switching process, reliable sealing forced seal ball valve.
The utility model forced seal ball valve is achieved in that it comprises valve body, is positioned at the valve seat of valve body, the ball core that cooperates with valve seat, the lifting gear that is connected with the ball core, and Sealing.Wherein lifting gear is by the valve gap that is installed on the valve body, the support that is connected with valve gap, and the valve rod that cooperates with spool, handwheel that cooperates with valve rod and Stem Mut are formed.Ball core bottom is provided with the swing head that is assemblied on the valve body, and top is provided with the pivot pin of realizing the swing of ball core.There is the ramp structure that is axial 180 ° of layouts the valve rod lower end, and the gradient difference on two inclined-planes, and the pivot pin on the inclined-plane of valve rod lower end and the ball core is slidingly matched, and plays guiding.Be guides stem, guide finger is installed on support, valve rod is provided with and cooperates with guide finger and be the spiral chute of pi/2 radian.The Sealing that is arranged on the valve seat is a seal ring, can adopt different soft material build-ins in last according to different operating modes, forms high performance sealing pair with the ball core.The Sealing at other position is with general ball valve.
The working procedure of the utility model forced seal ball valve is that the ball core does not contact with valve seat when opening.When closing ball valve, rotation hand wheel, the ramp structure of valve rod lower end and the effect of ball core in the process that valve rod moves downward, simultaneously, guide finger on the support moves in the spiral chute of the pi/2 radian at valve rod middle part and leads, make ball core half-twist and closing passage, the effect because of the inclined-plane, lower end simultaneously makes the swing of ball core closely press to valve seat, forms a sealing pair that relies on mechanical force and fluid medium pressure to produce with seal ring on the valve seat.In the closed procedure of whole pass, the ball core does not contact with valve seat, so there is not friction; Otherwise Open valve too because said structure, makes the ball core be swung away from valve seat earlier, again half-twist and open passage.
The advantage of the utility model forced seal ball valve is that sealing is reliable, operate lightly, and working life is long, is applicable in oil-gas gathering and transportation and chemical-process install pipes to make stop valve usefulness.
Describe the utility model embodiment in detail below in conjunction with accompanying drawing.
Fig. 1: the utility model structural representation
The utility model forced seal ball valve comprises valve body 1, is positioned at the valve seat 2 of valve body 1, the ball core 3 that cooperates with valve seat 2, the lifting gear that is connected with ball core 3.Lifting gear by with the valve gap 4 that is installed on the valve body 1, the support 5 that is connected with valve gap 4, the valve rod 6 that cooperates with spool 3, the handwheel 7 that cooperates with valve rod 6 and Stem Mut 8 formed.Ball core 3 bottoms are provided with the swing that is assemblied on the valve body 19, and top is provided with the pivot pin 10 of realizing 3 swings of ball core.The ramp structure 11 that valve rod 6 lower ends have the gradient that is axial 180 ° of layouts not wait, the inclined-plane 11 of valve rod 6 lower ends is slidingly matched with the pivot pin 10 on the ball core 3, guide finger 12 is installed on the support 5, valve rod 6 is provided with and cooperates with guide finger 12 and be the spiral chute 13 of pi/2 radian, is embedded with seal ring 14 on the valve seat 2.
Claims (2)
1, a kind of forced seal ball valve, comprise valve body, be positioned at the valve seat of valve body, the ball core that cooperates with valve seat, the lifting gear that is connected with the ball core and forms by valve gap, support, valve rod, handwheel and Stem Mut, and Sealing, it is characterized in that ball core bottom is provided with the swing head that is assemblied on the valve body, top is provided with the pivot pin of realizing the swing of ball core; There is the ramp structure that is axial 180 ° of layouts the valve rod lower end, and the pivot pin on the inclined-plane of valve rod lower end and the ball core is slidingly matched.
2, forced seal ball valve as claimed in claim 1, its feature is provided with guide finger in support, has on the valve rod to cooperate with guide finger and be the spiral chute of pi/2 radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229556 CN2333844Y (en) | 1998-09-23 | 1998-09-23 | Forced sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229556 CN2333844Y (en) | 1998-09-23 | 1998-09-23 | Forced sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2333844Y true CN2333844Y (en) | 1999-08-18 |
Family
ID=33979432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229556 Expired - Lifetime CN2333844Y (en) | 1998-09-23 | 1998-09-23 | Forced sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2333844Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387805A (en) * | 2017-08-30 | 2017-11-24 | 刘晓琦 | A kind of forced seal ball valve and its valve ball height adjustment mechanism |
| CN109990110A (en) * | 2019-05-05 | 2019-07-09 | 凯瑞特阀业有限公司 | Forced seal ball valve |
| CN110608297A (en) * | 2019-10-25 | 2019-12-24 | 沪航科技集团有限公司 | Eccentric half ball valve |
-
1998
- 1998-09-23 CN CN 98229556 patent/CN2333844Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387805A (en) * | 2017-08-30 | 2017-11-24 | 刘晓琦 | A kind of forced seal ball valve and its valve ball height adjustment mechanism |
| CN109990110A (en) * | 2019-05-05 | 2019-07-09 | 凯瑞特阀业有限公司 | Forced seal ball valve |
| CN110608297A (en) * | 2019-10-25 | 2019-12-24 | 沪航科技集团有限公司 | Eccentric half ball valve |
| CN110608297B (en) * | 2019-10-25 | 2024-04-16 | 沪航科技集团有限公司 | Eccentric hemisphere 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 | ||
| CX01 | Expiry of patent term |