CN101718350B - Double-power hard sealing spherical valve - Google Patents
Double-power hard sealing spherical valve Download PDFInfo
- Publication number
- CN101718350B CN101718350B CN200910186806.3A CN200910186806A CN101718350B CN 101718350 B CN101718350 B CN 101718350B CN 200910186806 A CN200910186806 A CN 200910186806A CN 101718350 B CN101718350 B CN 101718350B
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- transmission cylinder
- valve body
- hemisphere
- groove
- inner hole
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Abstract
The invention discloses a double-power hard sealing spherical valve which comprises a valve body, wherein two semispheres are arranged in the valve body; through holes are arranged in the semispheres; cylindrical protrusions at the bottom ends of the semispheres are positioned in a circular groove of the valve body; a big-end-up opening is formed between square protrusions at the upper ends of the semispheres; the lower end of an internal hole thread rod is connected with an external thread increasing key; the shape of the external thread increasing key corresponds to the opening; the external thread increasing key is positioned in the opening at the upper ends of the two semispheres; the upper end of a transmission cylinder is vertically connected with a switch positioning handle; the transmission cylinder is sleeved at the lower end of the internal hole thread rod; a groove at the lower end of the transmission cylinder is matched and connected with the two protrusions at the upper ends of the two semispheres; the upper end of the internal hole thread rod is connected with a hand wheel; and the external surface of the transmission cylinder is hermetically connected with an upper cover in the middle of the valve body. The invention has the advantage that when the valve is opened, the sphere can be reduced, thereby achieving the purpose of separating the sealing surface of a sealing ring from the spherical surface.
Description
Technical field
The present invention relates to a kind of ball valve.
Background technique
The spool of existing ball valve is all generally a whole ball, and the sealing between sphere and valve body is easy to wear, and sealing effect is bad, leakiness, and also the switch resistance of valve is large, difficulty operates, effect is undesirable.
Summary of the invention
For existing technical deficiency, the invention provides a kind of novel double-power hard sealing spherical valve.
To achieve these goals, the measure that the present invention takes is:
Double-power hard sealing spherical valve, comprise valve body, in valve body, be provided with two hemisphere, in hemisphere, there is through hole, the cylindrical projection of two hemisphere bottoms is positioned at the circular groove of valve body, between the square projection in upper end of two hemisphere, form a up big and down small opening, inner hole thread bar lower end is connected with outside thread and increases key, shape and the opening of outside thread increase key are corresponding, outside thread increases key mapping in the opening of two hemisphere upper ends, transmission cylinder upper end is vertically connected with switch position fixing handle, inner hole thread bar lower end cover has transmission cylinder, two projections of the groove of transmission cylinder lower end and two hemispheres upper end are matchedly connected, inner hole thread bar upper end is connected with handwheel, transmission cylinder outer surface and valve body Zhong road upper cover are tightly connected, transmission cylinder internal surface and inner hole thread rod outer surface are tightly connected, on transmission cylinder, be provided with sealing gland, transmission cylinder overcoat has lower seal gland, and lower seal gland is between switch position fixing handle and valve body Zhong road upper cover, lower seal gland is connected on valve body Zhong road and is covered by screw, transmission cylinder periphery has draw-in groove, in draw-in groove, card has transmission cylinder positioning ring, described inner hole thread bar periphery is provided with draw-in groove, in draw-in groove, card has positioning ring.
Between two described hemisphere, be connected with extension spring.
Beneficial effect of the present invention: during valve opening, spheroid can dwindle, and reaches seal ring sealing surface separated with sphere; Two-way hard seal is in gapped state, so switch is light, has solved domestic hard seal ball threshold switch resistance large, and annex spring etc. are heatproof not, many difficult problems such as sealing surface wear; During valve closing, by spheroid, expand, thereby reach the real metal hard-sealing of sphere, meanwhile, sealing surface heatproof is equivalent to the level of valve body material heatproof peer, and anti-hydrodynamic pressure is increased to limit.
Accompanying drawing explanation
Fig. 1, structural representation of the present invention.
Embodiment
Refer to accompanying drawing its implementation process be described:
Double-power hard sealing spherical valve, comprise valve body 1, in valve body 1, be provided with two hemisphere 2, in hemisphere 2, there is through hole, the cylindrical projection of hemisphere 2 bottoms is positioned at the circular groove of valve body 1, between the square projection in upper end of hemisphere 2, form a up big and down small opening, inner hole thread bar 7 lower ends are connected with outside thread and increase key 10, shape and the opening of outside thread increase key 10 are corresponding, outside thread increases the opening that key 10 is positioned at two hemisphere 2 upper ends, transmission cylinder 5 upper ends are vertically connected with switch position fixing handle 4, inner hole thread bar 7 lower end covers have transmission cylinder 5, two projections of the groove of transmission cylinder 5 lower ends and two hemisphere 2 upper ends are matchedly connected, inner hole thread bar 7 upper ends are connected with handwheel 3, transmission cylinder 5 outer surfaces and valve body 1 Zhong road upper cover are tightly connected, transmission cylinder 5 internal surfaces and inner hole thread bar 7 outer surfaces are tightly connected, on transmission cylinder 5, be provided with sealing gland 13, transmission cylinder 5 overcoats have lower seal gland 12, and lower seal gland 12 is between switch position fixing handle 4 and valve body 1 Zhong road upper cover, lower seal gland 12 is connected on valve body 1 Zhong road and is covered by screw 11, transmission cylinder 5 peripheries have draw-in groove, in draw-in groove, card has transmission cylinder positioning ring 8, described inner hole thread bar 7 peripheries are provided with draw-in groove, in draw-in groove, card has positioning ring 6.Between two described hemisphere 2, be connected with extension spring 9.
During use, only need rotating switch position fixing handle 4, switch position fixing handle 4 drives transmission cylinder 5, groove below transmission cylinder 5 and the projection on two hemisphere 2 are matchedly connected, so just interlock has driven hemisphere 2 to move together, when the through hole of hemisphere 2 and the latus rectum of valve are when in alignment, valve open, the through hole of hemisphere 2 rotates 90 °, valve closing.Now, between hemisphere 2 and the inwall of valve body, also has gap, it not also absolute sealing, only need to rotate handwheel 3, promote inner hole thread bar 7 and rotate, outside thread increases key 10 and moves downward in the opening of two hemisphere 2, thereby forces two hemisphere 2 to both sides jam-packed, two hemisphere 2 seal with valve body 1 inwall latus rectum seal face, can not reveal.While opening valve, opposite direction.
This ball body of valve flexible, separated with seal sealing surface, make sphere and seal face forever without wearing and tearing.By spheroid, expand, thereby reach the real metal hard-sealing effect of sphere seal face.The high temperature resistant heatproof limit of valve body material that directly rises to own.Anti-pressure ability boils over, the light non-resistance of switch.
Claims (1)
1. double-power hard sealing spherical valve, comprise valve body (1), in valve body (1), be provided with two hemisphere (2), hemisphere has through hole in (2), it is characterized in that, the cylindrical projection of hemisphere (2) bottom is positioned at the circular groove of valve body (1), between the square projection in upper end of hemisphere (2), form a up big and down small opening, inner hole thread bar (7) lower end is connected with outside thread and increases key (10), shape and the opening of outside thread increase key (10) are corresponding, outside thread increases the opening that key (10) is positioned at two hemisphere (2) upper end, transmission cylinder (5) upper end is vertically connected with switch position fixing handle (4), inner hole thread bar (7) lower end cover has transmission cylinder (5), two projections of the groove of transmission cylinder (5) lower end and two hemisphere (2) upper end are matchedly connected, inner hole thread bar (7) upper end is connected with handwheel (3), transmission cylinder (5) outer surface and valve body (1) Zhong road upper cover are tightly connected, transmission cylinder (5) internal surface and inner hole thread bar (7) outer surface are tightly connected, on transmission cylinder (5), be provided with sealing gland (13), transmission cylinder (5) overcoat has lower seal gland (12), and lower seal gland (12) is positioned between switch position fixing handle (4) and valve body (1) Zhong road upper cover, lower seal gland (12) is connected on valve body (1) Zhong road and is covered by screw (11), transmission cylinder (5) periphery has draw-in groove, in draw-in groove, card has transmission cylinder positioning ring (8), described inner hole thread bar (7) periphery is provided with draw-in groove, in draw-in groove, card has positioning ring (6), between described two hemisphere (2), be connected with extension spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186806.3A CN101718350B (en) | 2009-12-25 | 2009-12-25 | Double-power hard sealing spherical valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186806.3A CN101718350B (en) | 2009-12-25 | 2009-12-25 | Double-power hard sealing spherical valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101718350A CN101718350A (en) | 2010-06-02 |
| CN101718350B true CN101718350B (en) | 2014-01-22 |
Family
ID=42432962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910186806.3A Expired - Fee Related CN101718350B (en) | 2009-12-25 | 2009-12-25 | Double-power hard sealing spherical valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101718350B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013100247A1 (en) * | 2013-01-11 | 2014-07-17 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Valve, valve device and method of assembling a valve device |
| CN106855133A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of New forced seal ball-valve |
| CN106855134B (en) * | 2015-12-09 | 2020-01-17 | 王翔 | Ball body of ball valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085884U (en) * | 1990-10-26 | 1991-10-02 | 鞍山钢铁公司 | Adjustable specific pressure type water seal ball valve |
| CN2204895Y (en) * | 1994-11-04 | 1995-08-09 | 宋淑棉 | High sealed ball valve |
| CN2259535Y (en) * | 1996-04-10 | 1997-08-13 | 孙永忱 | Combined valve |
| RU2147704C1 (en) * | 1998-07-14 | 2000-04-20 | Магнитогорская государственная горно-металлургическая академия им.Г.И.Носова | Gate valve |
| CN2630587Y (en) * | 2003-06-24 | 2004-08-04 | 浙江浙东高中压阀门制造有限公司 | Lifting type plug-valve |
-
2009
- 2009-12-25 CN CN200910186806.3A patent/CN101718350B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085884U (en) * | 1990-10-26 | 1991-10-02 | 鞍山钢铁公司 | Adjustable specific pressure type water seal ball valve |
| CN2204895Y (en) * | 1994-11-04 | 1995-08-09 | 宋淑棉 | High sealed ball valve |
| CN2259535Y (en) * | 1996-04-10 | 1997-08-13 | 孙永忱 | Combined valve |
| RU2147704C1 (en) * | 1998-07-14 | 2000-04-20 | Магнитогорская государственная горно-металлургическая академия им.Г.И.Носова | Gate valve |
| CN2630587Y (en) * | 2003-06-24 | 2004-08-04 | 浙江浙东高中压阀门制造有限公司 | Lifting type plug-valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101718350A (en) | 2010-06-02 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20191225 |