CN201059368Y - Dual-channel sealing eccentric hemisphere valve - Google Patents
Dual-channel sealing eccentric hemisphere valve Download PDFInfo
- Publication number
- CN201059368Y CN201059368Y CNU2007200724206U CN200720072420U CN201059368Y CN 201059368 Y CN201059368 Y CN 201059368Y CN U2007200724206 U CNU2007200724206 U CN U2007200724206U CN 200720072420 U CN200720072420 U CN 200720072420U CN 201059368 Y CN201059368 Y CN 201059368Y
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- eccentric
- crown
- seal
- 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
Links
Images
Abstract
The utility model provides a dual channel eccentric half-ball valve, comprising a valve body, valve levers arranged on the upper and the lower part of the valve body and a ball crown arranged in the valve body, wherein, an eccentric axis by which the ball crown and the valve levers are connected is arranged in the inner part of the valve body, the axial line of the eccentric axis is deviated from the central line of the valve flow passage and is not crossed with the central line and a secondary seal by which the ball crown and the valve seat are sealed is arranged on the ball crown. The secondary seal is arranged on the contact surface of the ball crown and the valve seat. The eccentric axis is driven to rotate by the rotation of the valve lever and the crown ball is driven to rotate by the eccentric axis. Due to the secondary seal arranged on the ball crown, when the valve is stopped, the secondary seal is compressed first and then a primary seal is done by the ball crown and the valve seat. At the same time, the frication is reduced during the start and stop and the service life is greatly increased. The start-stop moment is small and the stop effect is good. No water is leaked after stopping the valve. Besides, the caliber of the valve can be enlarged. The utility model has the advantages of both the hard seal eccentric half-ball valve and the soft seal eccentric half-ball valve.
Description
Technical field
The utility model relates to valve technology field, a kind of specifically double sealing eccentric half-ball valve with twice sealing, and wherein soft seal can make sealing effect more perfect as hard replenishing of sealing.
Background technique
The application of eccentric technology in valve begins from butterfly valve the earliest, owing to adopt eccentric technology, makes valve opening and the moment of closing diminish, and reduced the friction between spool and the valve seat that eccentric valve only has friction in the moment of opening and closing.Prolonged working life widely.Therefore eccentric technology ball valve, butterfly valve, etc. obtained using widely in the design of valve.
Eccentric half-ball valve approximately has only time of decades from importing China abroad into, and its seal form has only two kinds.Soft seal and hard sealing, though because the eccentric class ball valve of technology limitation soft seal sealing effect is fine, bore can not be done greatly.Though the hard seal eccentric semi ball valve bore can be done greatlyyer, however the sealing can not accomplish watertight, the effect relative mistake some.
The model utility content
The purpose of this utility model is to provide a kind of double sealing eccentric half-ball valve that can overcome above-mentioned defective.
In order to achieve the above object, the technical solution of the utility model is such, a kind of double sealing eccentric half-ball valve, the spherical crown that comprises valve body, is installed in the valve rod of valve body upper and lower position and base and valve seat and is positioned at valve inner, it is characterized in that, described valve inner has the eccentric shaft of a connection spherical crown and valve rod, and the axis runout valve flowing channel center line of described eccentric shaft and non-intersect has the pair sealing that can seal spherical crown and valve seat on the described spherical crown.
Described secondary sealing is arranged on the surface of contact of spherical crown and valve seat.
The cross section of described secondary sealing is the dovetail groove shape.
The utility model drives the eccentric shaft rotation by the rotation of valve rod, and eccentric shaft drives the spherical crown rotation, owing to have secondary sealing on the spherical crown, when valve closing, the at first secondary sealing of compression, being sealed by spherical crown and valve seat is primary seal again.Reduce the friction when opening and closing simultaneously, prolonged service time greatly.
The beneficial effects of the utility model, it is little to open and close moment, closes effectively, can accomplish watertightly behind the valve closing, and the bore of valve can do greatly, has the advantage of hard seal eccentric semi ball valve and soft seal eccentric half-ball valve simultaneously.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the structural representation of a kind of double sealing eccentric half-ball valve of the utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
Referring to Fig. 1 and Fig. 2, a kind of double sealing eccentric half-ball valve, comprise valve body 1, base 2, spherical crown 3, valve seat 4, trim ring 5, eccentric shaft 6, valve rod 7, secondary sealing 8, valve gap 9, base 2 is installed in the bottom of valve body 1 and holds in the palm the eccentric shaft 6 that is installed in the valve body 1 to support by fastening piece 10 and seal ring, valve rod 7 is installed on the valve gap 9 by fastening flange 11, adjustment nut 12, fastening screw nut 13, seal ring 14 and axle sleeve 15, adjusts nut 12 in order to adjust valve rod 7 upper-lower positions.Valve gap 9 is installed in valve body 1 top by fastening piece 16, trim ring 5 is installed on the valve body 1 and with valve seat 4 by fastening piece 17 and is pressed on the valve body 1, the bottom of valve rod 7 is connected with eccentric shaft 6 by fixing pin 18, the axis runout valve flowing channel center line of eccentric shaft 6 and non-intersect has the pair sealing 8 that can seal spherical crown 3 and valve seat 4 on the spherical crown 3.The cross section of secondary sealing 8 is the dovetail groove shape.
The utility model drives eccentric shaft 6 rotations by the rotation of valve rod 7, and eccentric shaft 6 drives spherical crown 3 rotations, owing to have secondary sealing 8 on the spherical crown 3, when valve closing, the at first secondary sealing 8 of compression, being sealed by spherical crown 3 and valve seat 4 is primary seal again.Reduce the friction when opening and closing simultaneously, prolonged service time greatly.
A kind of double sealing eccentric half-ball valve of the utility model, it is little to open and close moment, closes effectively, can accomplish watertightly behind the valve closing, and the bore of valve can do greatly, has the advantage of hard seal eccentric semi ball valve and soft seal eccentric half-ball valve simultaneously.
Although the foregoing description is described the utility model, for the technician of the industry, still can do multiple variation to present embodiment, therefore, every employing similar variation of the present utility model all should be listed protection domain of the present utility model in.
Claims (3)
1. double sealing eccentric half-ball valve, the spherical crown that comprises valve body, is installed in the valve rod of valve body upper and lower position and base and valve seat and is positioned at valve inner, it is characterized in that, described valve inner has the eccentric shaft of a connection spherical crown and valve rod, the axis runout valve flowing channel center line of described eccentric shaft and non-intersect has the pair sealing that can seal spherical crown and valve seat on the described spherical crown.
2. a kind of double sealing eccentric half-ball valve according to claim 1 is characterized in that, described secondary sealing is arranged on the surface of contact of spherical crown and valve seat.
3. a kind of double sealing eccentric half-ball valve according to claim 1 and 2 is characterized in that, the cross section of described secondary sealing is the dovetail groove shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200724206U CN201059368Y (en) | 2007-07-12 | 2007-07-12 | Dual-channel sealing eccentric hemisphere valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200724206U CN201059368Y (en) | 2007-07-12 | 2007-07-12 | Dual-channel sealing eccentric hemisphere valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059368Y true CN201059368Y (en) | 2008-05-14 |
Family
ID=39407839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200724206U Expired - Lifetime CN201059368Y (en) | 2007-07-12 | 2007-07-12 | Dual-channel sealing eccentric hemisphere valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059368Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216631A (en) * | 2013-04-01 | 2013-07-24 | 无锡富盛阀业有限公司 | Valve |
| CN107202175A (en) * | 2017-07-28 | 2017-09-26 | 泉州市沪航阀门制造有限公司 | Horizontal large-diameter semi-ball valve |
| KR20190047236A (en) * | 2017-10-27 | 2019-05-08 | 주식회사 대한시브이디 | Semi ball type dome valve with threaded welded type ultra hard segment |
-
2007
- 2007-07-12 CN CNU2007200724206U patent/CN201059368Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216631A (en) * | 2013-04-01 | 2013-07-24 | 无锡富盛阀业有限公司 | Valve |
| CN107202175A (en) * | 2017-07-28 | 2017-09-26 | 泉州市沪航阀门制造有限公司 | Horizontal large-diameter semi-ball valve |
| KR20190047236A (en) * | 2017-10-27 | 2019-05-08 | 주식회사 대한시브이디 | Semi ball type dome valve with threaded welded type ultra hard segment |
| KR102002870B1 (en) * | 2017-10-27 | 2019-10-17 | (주)대한시브이디 | Semi ball type dome valve with threaded welded type ultra hard segment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202733009U (en) | Flange two-way pressure hard sealing butterfly valve | |
| CN201059368Y (en) | Dual-channel sealing eccentric hemisphere valve | |
| CN201475404U (en) | Metallic hard sealed ball valve used under high temperature and high pressure | |
| CN102644760B (en) | Sealing structure of ultrahigh-pressure needle valve | |
| CN202001646U (en) | Cage type regulating valve with single seat | |
| CN202118294U (en) | High-pressure hard seal ball valve | |
| CN202252163U (en) | High-pressure check valve | |
| CN202140670U (en) | Impacting hand wheel for valves | |
| CN201925492U (en) | Double-wishbone spreading type butterfly valve | |
| CN110848429A (en) | Cut-off double-purpose valve | |
| CN204962008U (en) | Two packing seal valves | |
| CN201137716Y (en) | Upper mounting type ball-valve | |
| CN103016762B (en) | Bidirectional sealed butterfly valve | |
| CN207999518U (en) | A kind of natural gas valve with gas leakage automatic protection | |
| CN202561148U (en) | Inclined disk type collision-free check valve | |
| CN102678937B (en) | Pull rod type water tap | |
| CN206246745U (en) | A kind of weaving machine with water spraying check valve | |
| CN208605644U (en) | Floating type high-performance butterfly valve | |
| CN208281520U (en) | A kind of valve base sealing structure of middle line butterfly valve | |
| CN207999523U (en) | A kind of wear resistant three-way fixing ball valve | |
| CN205918936U (en) | Ball valve | |
| CN201772092U (en) | Eccentric half-ball valve | |
| CN204153232U (en) | Rock gas Swing check valve | |
| CN204175976U (en) | A kind of sewage draining exit opens and closes the reliable pneumatic ball valve of operation | |
| CN204300391U (en) | A kind of two way sealed high-performance butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |
|
| CX01 | Expiry of patent term |