CN2221694Y - End-sealed ball valve - Google Patents
End-sealed ball valve Download PDFInfo
- Publication number
- CN2221694Y CN2221694Y CN 95233636 CN95233636U CN2221694Y CN 2221694 Y CN2221694 Y CN 2221694Y CN 95233636 CN95233636 CN 95233636 CN 95233636 U CN95233636 U CN 95233636U CN 2221694 Y CN2221694 Y CN 2221694Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- ball
- spheroid
- diameter
- 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 relates to an end-sealed ball valve which belongs to the improvement of a ball valve structure. The utility model is characterized in that a valve body is an integral; a ball body is arranged in the inner cavity of the valve body; a valve seat is clamped between the ball body and the valve body; the diameter of the side opening of the valve body is larger the diameter of the ball body, and internal screw threads of the opening is connected with external screw threads of a end cover; a valve seat and a seal ring are clamped between the end cover and the ball body; the upper part of the ball body is connected with a valve rod, and also is connected with a handle; the valve body is provided with a fixing pin which can fix the handle position, and can control the opening and the closing of the valve. The utility model has the advantages of compact structure, small volume, steel saving, low cost, little space occupation, great sealing performance, labor saving in operating, and long service life.
Description
The utility model relates to a kind of improvement of ball-valve structure, is a kind of end seal ball-valve specifically.
In the manufacturing mechanism and pipeline of industries such as food, chemical industry, oil refining, medicine, ball valve is used widely.The major defect that at present used ball-valve structure exists is that volume is big, and valve body is made up of two halves, and is very heavy, and the sealing between valve rod and the valve body is to realize with the packing that is entangled on the valve rod, the operation effort, and the cost height, it is many to consume steel.
The utility model purpose is to overcome the shortcoming in the above-mentioned technology, and ball-valve structure is improved, and proposes a kind of end seal ball-valve of new structure, making its valve body is an integral body, improves valve rod and valve seal form, makes the end seal ball-valve simple in structure, weight reduction, easy to operate, sealing is reliable.
The present utility model purpose is realized by following technological scheme: this end seal ball-valve, a valve body is arranged, body cavity is equipped with spheroid, in valve body one side the hole of a diameter less than sphere diameter arranged, between this side valve body and spheroid, accompany valve seat, spheroid top connects valve rod, with nut valve rod is fixedlyed connected with handle, a fixing pin is housed with the fixed handle position above the valve body, the switch of energy control valve, valve body is as a whole, the another side opening diameter of valve body is greater than the diameter of spheroid, and the internal thread of institute's perforate is connected with the end cap outside thread, accompanies valve seat between end cap and the spheroid, accompany seal ring between end cap and the valve body, the outer side surface of end cap is the sealing surface of valve body.
Valve body is as a whole, compact structure, and volume is little, and is in light weight.The opening diameter of a side is convenient to spheroid is installed in the valve body greater than sphere diameter, reinstalls valve seat and end cap after installing spheroid.Valve seat has two halves, makes between spheroid and the valve body, between spheroid and the end cap seal action is arranged.In addition, the seal ring between end cap and the valve body has increased the once sealing effect again, prevents that the highly pressurised liquid that passes through in the ball valve from oozing out from the joint.
Stem lower portion has a boss that diameter is bigger, accompanies sealing gasket between boss and valve body, in addition, belleville spring is being housed also on the valve rod between nut and the valve body, boss on the valve rod is compressed and valve body between sealing gasket, good airproof performance.This sealing has replaced the old-fashioned sealing means that twines the packing bar on valve rod, and both simple in structure, good sealing effect is operated laborsaving again.
The utility model has the advantages that structure is simple relatively because valve body is an integral body, compactness, volume is little, and is in light weight, saves steel, reduces cost, and the time save space is installed, and good seal performance is easy to operate, laborsaving.
Embodiment of accompanying drawings:
Fig. 1 is an end seal ball-valve structural drawing.
Valve body (1) is made with carbon steel or stainless steel, and nominal diameter is the DN40 millimeter, and nominal pressure is PN1.6MPa, and structure length is about 1/3 of original ball valve body length, has saved the valve body rolled steel dosage.Openings at one side accompanies the valve seat made from fluoroplastic (3) less than the diameter of spheroid (2) between spheroid (2) and the valve body (1).Valve body (1) the other end opening is greater than the diameter of spheroid (2), and the opening internal thread is connected tightly with the outside thread of end cap (5), accompanies second half of valve seat (3) between end cap (5) and the spheroid (2).Also be pressed with seal ring (4) between end cap (5) and the valve body (1).Accompany sealing gasket (6) between the boss of valve rod (7) and the valve body (1), accompany belleville spring (8) being positioned on the valve rod (7) between nut (9) and the valve body (1), can give the sealing gasket (6) between tight valve rod (7) and valve body (1), and the wearing and tearing of compensation sealing pad.Handle (11) can the control end seal ball-valve switch, locating stud (10) is installed on the valve body (1), by with the switching position that cooperates control valve of handle (11).
Claims (3)
1, a kind of end seal ball-valve, a valve body is arranged, body cavity is equipped with spheroid, in valve body one side the hole of a diameter less than sphere diameter arranged, between this side valve body and spheroid, accompany valve seat, spheroid top connects valve rod, with nut valve rod is fixedlyed connected with handle, the switch of a fixing pin with fixed handle position energy control valve is housed above the valve body, it is characterized in that valve body is as a whole, the another side opening diameter of valve body is greater than the diameter of spheroid, the internal thread of institute's perforate is connected with the end cap outside thread, accompany valve seat between end cap and the spheroid, accompany seal ring between end cap and the valve body, the outer side surface of end cap is the sealing surface of valve body.
2,, it is characterized in that stem lower portion has a boss that diameter is bigger, accompanies sealing gasket between boss and valve body according to the described end seal ball-valve of claim 1.
3,, it is characterized in that on the valve rod between nut and the valve body, belleville spring being housed according to the described end seal ball-valve of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95233636 CN2221694Y (en) | 1995-04-13 | 1995-04-13 | End-sealed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95233636 CN2221694Y (en) | 1995-04-13 | 1995-04-13 | End-sealed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2221694Y true CN2221694Y (en) | 1996-03-06 |
Family
ID=33877736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95233636 Expired - Fee Related CN2221694Y (en) | 1995-04-13 | 1995-04-13 | End-sealed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2221694Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309979C (en) * | 2000-08-09 | 2007-04-11 | 帕克-汉尼芬有限公司 | Valve and its assembling method |
| WO2007041892A1 (en) * | 2005-10-08 | 2007-04-19 | Yongsheng Song | A shut-off valve |
| CN102011876A (en) * | 2010-12-06 | 2011-04-13 | 无锡四方友信股份有限公司 | Ton packaging corrosion resistance emptying ball valve |
| CN104154269A (en) * | 2014-07-30 | 2014-11-19 | 玉环铜博士阀门有限公司 | Valve body and valve connected with same via joint cap |
-
1995
- 1995-04-13 CN CN 95233636 patent/CN2221694Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309979C (en) * | 2000-08-09 | 2007-04-11 | 帕克-汉尼芬有限公司 | Valve and its assembling method |
| WO2007041892A1 (en) * | 2005-10-08 | 2007-04-19 | Yongsheng Song | A shut-off valve |
| CN101405526B (en) * | 2005-10-08 | 2012-08-22 | 宋永生 | Valve closing member |
| CN102011876A (en) * | 2010-12-06 | 2011-04-13 | 无锡四方友信股份有限公司 | Ton packaging corrosion resistance emptying ball valve |
| CN104154269A (en) * | 2014-07-30 | 2014-11-19 | 玉环铜博士阀门有限公司 | Valve body and valve connected with same via joint cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |