CN2744905Y - End face sealed leak-proof ball valve - Google Patents
End face sealed leak-proof ball valve Download PDFInfo
- Publication number
- CN2744905Y CN2744905Y CN 200420091001 CN200420091001U CN2744905Y CN 2744905 Y CN2744905 Y CN 2744905Y CN 200420091001 CN200420091001 CN 200420091001 CN 200420091001 U CN200420091001 U CN 200420091001U CN 2744905 Y CN2744905 Y CN 2744905Y
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- CN
- China
- Prior art keywords
- valve body
- valve
- groove
- ball
- bulge loop
- 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 discloses a valve for a pipeline, in particular to an end face sealed leak-proof ball valve. The end face sealed leak-proof ball valve is composed of a valve body, a valve cap, a left ball pad, a ball core, a right ball pad, a centre shaft, a sealing ring, an O-shaped ring, a compression nut, a handle and a nut. The right ball pad, the ball core and the left ball pad is sequentially arranged in the valve body, and the valve body is screwed with the valve cap; one end of the centre shaft is connected with the ball core, the other end is connected with the handle via the nut, and the centre shaft is arranged in the valve body; the centre shaft is sequentially provided with the O-shaped ring and the sealing ring, the compression nut is mounted on the centre shaft, and the compression nut tightly compresses the sealing ring after being screwed with the valve body; the junction part which is on the valve body between the valve body and the valve cap is provided with an annular groove; the valve cap is provided with a bulge loop, the area of the groove from the section view in an axial direction is smaller than the area of the nose of the bulge loop from the section view in the axial direction, the valve cap is screwed in the valve body, and the nose of the bulge loop can have an elastic deformation after forced; the bulge loop and the groove tightly contacts together, and the sealing is obtained thereby. While the end face sealed leak-proof ball valve is used, the leakage can be prevented; also, the structure is simple, and the process is easy.
Description
Technical field
The utility model relates to the valve that uses on the pipeline, specifically is a kind of end face seal leakproof ball valve.
Background technique
Ball valve since switch rapid, easy to operate, fluid resistance is little, structure is uncomplicated, industry and civilian on have been widely used.It mainly is made up of valve body, valve gap, ball core, axis, tightening nut and handle etc.Notification number CN2189244Y, title " ball valve ", its valve body and valve gap are assembled into one by bolt, nut, on the junction plane of valve body and valve gap packing ring are arranged.This complex structure, and valve gap and valve body are prone to misalignment of axe.The ball valve body that also has is to be threaded with valve gap, in order to improve its sealing, seals with adhesive at connection part, but along with after these positions of growth of service time are heated, because of the thermal expansion coefficient difference, the adhesive of its junction plane is lost efficacy, and leaks.
Summary of the invention
The utility model purpose is that to be connected with valve cover chamber at above-mentioned valve body be to be assembled into one by the bolts and nuts fastening piece, and complex structure is prone to valve gap and valve axis deviation; Or valve body and valve cover chamber be with being threaded, and bonding with adhesive, can not effectively prevent the defective of leaking.The utility model purpose is such realization: it is made up of valve body, valve gap, ball core, left ball pad, right ball pad, axis, O type circle, seal ring, gland nut, handle, nut, right ball pad, ball core, in valve body, valve body is threaded with valve gap left ball pad successively; Axis one end is connected with the ball core, the other end is connected with handle by nut, also have O type circle, seal ring on the axis, by the gland nut that the penetrates axis back compression seal circle that is threaded with valve body, it is characterized in that described valve body and valve gap end face junction, annular groove is arranged on valve body, bulge loop is arranged on valve gap, analyse and observe the area of the area of groove groove less than the bulge loop plush copper vertically, the groove depth of groove is less than the height of bulge loop, and the groove width of groove is greater than the width of bulge loop.It is isosceles triangle that described groove is axially analysed and observe, and it is the isosceles triangle of drift angle less than groove that described bulge loop is axially analysed and observe; There is flakelet described axis and valve body junction, and flakelet places on the axis, and its end face is close to valve body.
The beneficial effects of the utility model be valve body and valve gap by after being threaded, its two in conjunction with on the end face, the valve gap plush copper generation resiliently deformable that combines with valve body recess when screwing, the two is closely contacted reach sealing, can prevent from during use to leak, and structure is uncomplicated, difficulty of processing is not high.
Accompanying drawing title and explanation thereof
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an A portion zoomed-in view.
Fig. 3 is the Type B detached body figure of valve body and valve gap junction plane in the A portion zoomed-in view.
Fig. 4 is the C type detached body figure of valve body and valve gap junction plane in the A portion zoomed-in view.
Fig. 5 is the D type detached body figure of valve body and valve gap junction plane in the A portion zoomed-in view.
The symbol of figure and explanation thereof
The 1st, valve body, the 2nd, valve gap, the 3rd, left ball pad, the 4th, ball core, the 5th, axis, the 6th, O type circle, the 7th, seal ring, the 8th, gland nut, the 9th, handle, the 10th, nut, the 11st, flakelet, the 12nd, right ball pad, the 13rd, block, the 14th, projection, the 15th, groove, the 16th, bulge loop, the 17th, projection.
Embodiment
Set forth embodiment of the present utility model below in conjunction with accompanying drawing.It is made up of valve body 1, valve gap 2, left ball pad 3, ball core 4, right ball pad 12, axis 5, seal ring 7, O type circle 6, flakelet 11, gland nut 8, handle 9, nut 10, right ball pad 12, ball core 4, in valve body 1, valve body 1 is threaded with valve gap 2 left ball pad 3 successively.Axis 5 one ends are connected with ball core 4, the other end is connected with handle 9 by nut 10, and be arranged in valve body 1, also have O type circle 6 and seal ring 7 on the axis 5 successively, gland nut 8 is contained on the axis 5, and the back compression seal circle 7 that is threaded with valve body 1, being contained in O type circle 6 on the axis 5 and seal ring 7 after gland nut 8 screws, the liquid that can not in the ball valve leaks from axis 5.Block 13 is arranged on valve body 1, projection 14,17 is arranged on the handle 9, the two is in conjunction with playing position-limiting action, there is flakelet 11 junction at axis 5 and valve body 1, in valve body 1 and end face that valve gap 2 combines, fluted 15 on the valve body 1, bulge loop 16 is arranged on the valve gap 2, the groove depth of groove 15 is less than the height of bulge loop 16, and the groove width of groove 15 is greater than the width of bulge loop 16.It is isosceles triangle that groove 15 is analysed and observe vertically, and it is isosceles triangle that bulge loop 16 is analysed and observe vertically.First kind of scheme is: the isosceles triangle drift angle of groove 15 is 90 °, and height is 0.45mm; The isosceles triangle drift angle of bulge loop 16 is 70 °, and height is 0.7mm.Second kind of scheme: the isosceles triangle drift angle of groove 15 is 70 °, and height is 0.45mm; The isosceles triangle drift angle of bulge loop 16 is 50 °, and height is 0.7mm.The third scheme: the isosceles triangle drift angle of groove 15 is 90 °, and height is 0.45mm, and circular arc is arranged on the drift angle, and described radius of arc is 0.2mm; The isosceles triangle drift angle of bulge loop 16 is 70 °, and height is 0.7mm, and the circular arc with groove 15 same radius is arranged on the drift angle, and described circular arc is 0.2mm.As long as rotatory handling 9, the axis 5 that is connected with handle 9 rotates during use, and axis 5 the other ends drive ball core 4 and rotate, and during projection 14 contact blocks 13 on the handle 9, the interior axially bored line of ball core 4 and the axis of valve body 1 are on the same straight line, are full-gear; In the time of need closing, backward rotation handle 9 makes the projection 17 on the handle 9 be close to block 13 the other ends.
Claims (7)
1, a kind of end face seal leakproof ball valve of forming by valve body (1), valve gap (2), left ball pad (3), ball core (4), right ball pad (12), axis (5), seal ring (7), O type circle (6), gland nut (8), handle (9), nut (10), right ball pad (12), ball core (4), in valve body (1), valve body (1) is threaded with valve gap (2) left ball pad (3) successively; Axis (5) one ends are connected with ball core (4), the other end is connected with handle (9) by nut (10), axis (5) is gone up also has O type circle (6), seal ring (7), by the gland nut that penetrates axis (5) (8) be threaded with valve body (1) back compression seal circle (7), it is characterized in that described valve body (1) and valve gap (2) end face junction, annular groove (15) is arranged on valve body (1), bulge loop (16) is arranged on valve gap (2), analyse and observe the area of the area of groove (15) groove vertically less than bulge loop (16) plush copper, the groove depth of groove (15) is less than the height of bulge loop (16), and the groove width of groove (15) is greater than the width of bulge loop (16).
2, a kind of end face seal leakproof ball valve according to claim 1 is characterized in that it is isosceles triangle that described groove (15) is axially analysed and observe, and it is the isosceles triangle of drift angle less than groove that described bulge loop (16) is axially analysed and observe.
3, a kind of end face seal leakproof ball valve according to claim 2 is characterized in that the isosceles triangle drift angle that described groove (15) is axially analysed and observe is 90 °, and height is 0.45mm; The isosceles triangle drift angle that bulge loop (16) is axially analysed and observe is 70 °, and height is 0.7mm.
4, a kind of end face seal leakproof ball valve according to claim 2 is characterized in that the isosceles triangle drift angle that described groove (15) is axially analysed and observe is 70 °, and height is 0.45mm; The isosceles triangle drift angle that bulge loop (16) is axially analysed and observe is 50 °, and height is 0.7mm.
5, a kind of end face seal leakproof ball valve according to claim 2, it is characterized in that the isosceles triangle drift angle that described groove (15) is axially analysed and observe is 90 °, height is 0.45mm, on the isosceles triangle drift angle, circular arc is arranged, the isosceles triangle drift angle that bulge loop (16) is axially analysed and observe is 70 °, height is 0.7mm, and the identical circular arc of isosceles triangle drift angle with groove (15) is arranged on the isosceles triangle drift angle.
6, a kind of end face seal leakproof ball valve according to claim 5 is characterized in that described radius of arc is 0.2mm.
7, a kind of end face seal leakproof ball valve according to claim 1 is characterized in that flakelet (11) in addition, and flakelet (11) places on the axis (5), and its end face is close to valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420091001 CN2744905Y (en) | 2004-10-14 | 2004-10-14 | End face sealed leak-proof ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420091001 CN2744905Y (en) | 2004-10-14 | 2004-10-14 | End face sealed leak-proof ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744905Y true CN2744905Y (en) | 2005-12-07 |
Family
ID=35579686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420091001 Expired - Lifetime CN2744905Y (en) | 2004-10-14 | 2004-10-14 | End face sealed leak-proof ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744905Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547991A (en) * | 2018-07-17 | 2018-09-18 | 江苏应流机械制造有限责任公司 | A kind of valve deck of forging ball valve |
-
2004
- 2004-10-14 CN CN 200420091001 patent/CN2744905Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547991A (en) * | 2018-07-17 | 2018-09-18 | 江苏应流机械制造有限责任公司 | A kind of valve deck of forging ball 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 |
Expiration termination date: 20141014 Granted publication date: 20051207 |