CN102996844A - Limiting ball valve - Google Patents
Limiting ball valve Download PDFInfo
- Publication number
- CN102996844A CN102996844A CN201210559250XA CN201210559250A CN102996844A CN 102996844 A CN102996844 A CN 102996844A CN 201210559250X A CN201210559250X A CN 201210559250XA CN 201210559250 A CN201210559250 A CN 201210559250A CN 102996844 A CN102996844 A CN 102996844A
- Authority
- CN
- China
- Prior art keywords
- spheroid
- valve
- ball
- valve rod
- ball 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.)
- Pending
Links
Images
Abstract
The invention discloses a limiting ball valve capable of being accurately opened and closed. The limiting ball valve comprises a valve body, a ball body and a valve rod, wherein the ball body is positioned in the valve body; the valve rod is used for driving the ball body to rotate, and the valve rod is arranged in a sealing ferrule fixedly connected with the valve body; the end surface of the ball body is provided with a valve rod connecting hole; the valve rod is connected with the ball body through the valve rod connecting hole; the ball body is provided with two ball body limiting structures which respectively include a ball body opening limiting structure and a ball body closing limiting structure; and an opening positioning structure and a closing positioning structure which are fixedly connected with the valve body and are in one-to-one correspondence to the two ball body limiting structures along the rotating direction of the ball body are arranged in the valve body. The limiting ball valve disclosed by the invention can be ensured to be accurately opened and closed no matter how the volume of the ball body to be changed because the limiting ball valve is not influenced by the volume size of the ball body. Thus, when the limiting ball valve is designed, the diameter of the ball body can reach minimum, and required input torque is reduced, therefore the manufacturing cost is reduced.
Description
Technical field
The present invention relates to a kind of ball valve, relate in particular to a kind of spacing ball valve.
Background technique
In the prior art, spheroid rotates required torque force and derives from the torsion that acts on valve rod, realizes rotating by the keyway on the key on the valve rod or inclined to one side square toes and the spheroid or folk prescription hole.Again owing to the reason that is subjected to the ball valve fit on no matter be that key connecting or folk prescription head connect on all positions and all can produce a fit up gap and design gaps, because the existence of this gap, the limit stoper of conventional design is installed in the valve body outside, for example: the location that connects the ball valve switch position that has the crescent moon of one or two symmetry annular groove to cooperate with key on the valve rod on the dish and form.Because will appearring in the existence of fit up gap and design gaps spheroid and valve rod when rotation valve rod, its size of an outer corner difference changes with the variation of the size of fit up gap and design gaps, this differential seat angle can affect the correct switching position of valve, and the sealing that can affect valve when the gyration error is larger when off-position is that the outside has put in place and spheroid rotates and do not put in place.This phenomenon often can occur, and conventional design is to overcome the diameter with the valve seal position that this phenomenon can have a mind to show in when design to increase to overcome and state angular errors, and the sphere diameter of this moment is also along with increase, and required input torque is also along with increase.Manufacture cost is also along with increasing like this.
For example Chinese patent 201120535184.3 discloses a kind of ball valve, this ball valve comprises the valve body that is provided with medium channel, be positioned at the spheroid of described valve body and be used for driving the valve rod that described spheroid rotates, the top of described valve rod is provided with the valve body boss, described valve rod passes the valve rod hole on the described valve body boss, the inner end connects described spheroid, the outer end extends to outside the described valve body and is connected with valve actuator, the upper-end surface of described valve body boss is provided with one or more unthreaded holes, described drive unit be provided with at least one can with described unthreaded hole at least one unthreaded hole and same pin be complementary and realize the lockhole of angle location.This ball valve is exactly that the locking framework that will be used for the location spheroid is arranged on the valve body outside.So the problem of above-mentioned analysis still can appear in this ball valve.
Summary of the invention
The technical problem that the present invention solves provides a kind of spacing ball valve of accurately opening and closing.
The technical solution adopted for the present invention to solve the technical problems is: spacing ball valve, comprise valve body, be positioned at the spheroid of valve body and be used for driving the valve rod that spheroid rotates, in the sealing ring that described valve rod is arranged on valve body is fixedly connected with, be provided with the valve rod attachment hole on the described spheroid end face, valve rod links to each other with spheroid by the valve rod attachment hole, is provided with two spheroid limit structures on the described spheroid, is respectively spheroid unlatching limit structure and spheroid and closes limit structure; The inside of described valve body is provided with sense of rotation and described two the spheroid limit structures along the spheroid that are fixedly connected with valve body and opens one to one position structure and close position structure.Because the standard-sized sheet of spheroid and full close position are to open limit structure and spheroid by the spheroid on the spheroid to close the unlatching position structure on limit structure and the valve body and close position structure and limit, there is not the problem of fit up gap between valve rod and the spheroid in the centre.Therefore compared with prior art, the present invention a kind ofly directly carries out spacingly to spheroid, rather than indirectly spheroid is carried out spacingly by the locking framework on the valve rod, can effectively guarantee limit accuracy, namely can make spheroid accurately be positioned at opening state and closed condition.
Further be: described sealing ring is provided with the sealing ring arc boss that central angle is 180 degree on the end face of an end of spheroid, the two ends of described sealing ring arc boss form respectively described unlatching position structure and close position structure, being provided with central angle on the end face of the valve rod attachment hole on the described spheroid is the spheroid arc boss of 90 degree, and the two ends of described spheroid arc boss form respectively described spheroid unlatching limit structure and spheroid is closed limit structure.
The invention has the beneficial effects as follows: can guarantee accurately opening and closing of ball valve.And because ball valve of the present invention is not subjected to the impact of the volume size of spheroid, namely no matter how the spheroid volume changes, and all can guarantee the accurate opening and closing of ball valve.When therefore designing, can make sphere diameter reach minimum, required input torque is also along with reducing.Manufacture cost also can decrease like this.
Description of drawings
Fig. 1 is the schematic representation of spacing ball valve of the present invention;
Fig. 2 is the plan view of spheroid;
Fig. 3 is provided with the schematic representation that central angle is the spheroid arc boss of 90 degree on the end face of valve rod attachment hole of spheroid;
Fig. 4 is the plan view of sealing ring;
Fig. 5 is that sealing ring is provided with the schematic representation that central angle is the sealing ring arc boss of 180 degree on the end face of an end of spheroid;
Fig. 6 is spheroid arc boss and sealing ring arc boss matching relationship schematic representation;
Be labeled as among the figure: valve rod 1, valve body 2, sealing ring 3, end 4, spheroid arc boss 5, spheroid is opened limit structure 51, and spheroid is closed limit structure 52, spheroid 6, valve rod attachment hole 7, sealing ring arc boss 8 is opened position structure 81, closes position structure 82.
Embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
Extremely shown in Figure 6 such as Fig. 1, spacing ball valve, comprise valve body 2, be positioned at the spheroid 6 of valve body and be used for driving the valve rod 1 that spheroid rotates, described valve rod 1 is arranged in the sealing ring 3 that is fixedly connected with valve body, is provided with valve rod attachment hole 7 on the described spheroid end face, and valve rod 1 links to each other with spheroid 6 by valve rod attachment hole 7, be provided with two spheroid limit structures on the described spheroid, be respectively spheroid unlatching limit structure 51 and spheroid and close limit structure 52; The inside of described valve body 2 is provided with sense of rotation and described two the spheroid limit structures along the spheroid 6 that are fixedly connected with valve body 2 and opens one to one position structure 81 and close position structure 82.
Above-mentioned spheroid is opened limit structure 51 and is opened position structure 81 corresponding settings, and spheroid is closed limit structure 52 and closed position structure 82 corresponding settings.Spheroid 6 rotates under valve rod 1 drives, when spheroid open limit structure 51 turn to spheroid 6 with open position structure 81 and contact after, this ball valve is in complete opening state.When spheroid close limit structure 52 turn to spheroid 6 close position structure 82 contact after, this ball valve is in buttoned-up status.Because what said structure adopted is the spheroid direct location mode, can not occur of the prior art because the positioning error that the fit up gap produces.Therefore compared with prior art, can significantly improve the Location accuracy of spheroid, can realize the fully unlatching of spheroid and close fully.
Above-mentioned unlatching position structure 81 has multiple with the set-up mode of closing position structure 82, for example can be set directly on the inwall of valve body, namely be fixedly connected with two limiting stoppers at valve interior wall, two limiting stoppers can be the integral type structure with valve body, and these two limiting stoppers are respectively to be opened position structure 81 and close position structure 82.But also two limiting stoppers of relative set on the upper-end surface of spheroid then are respectively that spheroid is opened limit structure 51 and spheroid is closed limit structure 52.Preferred implementation is: extremely shown in Figure 6 such as Fig. 1, described sealing ring 3 is provided with the sealing ring arc boss 8 that central angle is 180 degree on the end face of an end 4 of spheroid, the two ends of described sealing ring arc boss 8 form respectively described unlatching position structure 81 and close position structure 82, being provided with central angle on the end face of the valve rod attachment hole 7 on the described spheroid is the spheroid arc boss 5 of 90 degree, and the two ends of described spheroid arc boss 5 form respectively described spheroid unlatching limit structure 51 and spheroid is closed limit structure 52.Preferred and the sealing ring 3 of above-mentioned sealing ring arc boss 8 is the integral type structure.Preferred and the spheroid of above-mentioned spheroid arc boss 5 is the integral type structure.Integral structure is conducive to guarantee quality of fit.Provided the use phase diagram among Fig. 6, spheroid arc boss 5 rotates with spheroid, and its two ends can be respectively and two end in contact of sealing ring arc boss 8, thus the location of realizing spheroid.Sealing ring 3 in the said structure can not move with valve rod owing to be fixedly connected with valve body 2, and therefore in the ball valve using process, sealing ring 3 can not be moved, and can guarantee the Location accuracy of spheroid 6, and then can guarantee that the ball valve opening and closing are accurate.And, adopt said structure to be convenient to manufacturing and installation.
Claims (2)
1. spacing ball valve, comprise valve body (2), be positioned at the spheroid (6) of valve body and be used for driving the valve rod (1) that spheroid rotates, described valve rod (1) is arranged in the sealing ring (3) that is fixedly connected with valve body, be provided with valve rod attachment hole (7) on the described spheroid end face, valve rod (1) links to each other with spheroid (6) by valve rod attachment hole (7), it is characterized in that: be provided with two spheroid limit structures on the described spheroid, be respectively spheroid unlatching limit structure (51) and spheroid and close limit structure (52); The inside of described valve body (2) is provided with sense of rotation and described two the spheroid limit structures along the spheroid (6) that are fixedly connected with valve body (2) and opens one to one position structure (81) and close position structure (82).
2. spacing ball valve as claimed in claim 1, it is characterized in that: described sealing ring (3) is provided with the sealing ring arc boss (8) that central angle is 180 degree on the end face of an end of spheroid, the two ends of described sealing ring arc boss (8) form respectively described unlatching position structure (81) and close position structure (82), being provided with central angle on the end face of the valve rod attachment hole (7) on the described spheroid is the spheroid arc boss (5) of 90 degree, and the two ends of described spheroid arc boss (5) form respectively described spheroid unlatching limit structure (51) and spheroid is closed limit structure (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559250XA CN102996844A (en) | 2012-12-20 | 2012-12-20 | Limiting ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559250XA CN102996844A (en) | 2012-12-20 | 2012-12-20 | Limiting ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996844A true CN102996844A (en) | 2013-03-27 |
Family
ID=47925787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210559250XA Pending CN102996844A (en) | 2012-12-20 | 2012-12-20 | Limiting ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996844A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114243A (en) * | 2017-06-22 | 2019-01-01 | 大田精密工业股份有限公司 | Tap with integrated ball valve |
| CN111197663A (en) * | 2020-02-25 | 2020-05-26 | 四川精控阀门制造有限公司 | Two-body type fixed ball valve and manufacturing method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10311869A1 (en) * | 2003-03-17 | 2004-09-30 | C. Rob. Hammerstein Gmbh & Co. Kg | Multiple seat for a vehicle esp. a double seat arrangement where the seat back and the seat surface are pivotal about different axes |
| DE10318699A1 (en) * | 2003-04-24 | 2004-11-25 | Reinert-Ritz Gmbh | Plastic stop valve for fluid pipes comprises a valve body provided with diametrically opposite neck sections installed in bearing sleeves which are insertable through a radial bore in the valve housing |
| CN201121731Y (en) * | 2007-12-07 | 2008-09-24 | 江苏神通阀门股份有限公司 | Limiting mechanism of ball valve |
| CN201246487Y (en) * | 2008-08-19 | 2009-05-27 | 浙江盾安禾田金属有限公司 | Ball valve switch structure |
| CN201330864Y (en) * | 2008-12-05 | 2009-10-21 | 北京市阀门总厂(集团)有限公司 | Metal hard seal ball valve provided with flexible sealing system |
| CN201339725Y (en) * | 2009-01-23 | 2009-11-04 | 浙江鸿森机械有限公司 | Spacing ring for valve and valve adopting spacing ring |
| CN201354863Y (en) * | 2009-03-04 | 2009-12-02 | 林继良 | Water control switch |
| WO2011133121A1 (en) * | 2010-04-22 | 2011-10-27 | Valf Sanayii A.S. | Ball valve with stop |
| WO2012075692A1 (en) * | 2010-12-10 | 2012-06-14 | 上海鸿润科技有限公司 | Valve and valve core assembly thereof |
-
2012
- 2012-12-20 CN CN201210559250XA patent/CN102996844A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10311869A1 (en) * | 2003-03-17 | 2004-09-30 | C. Rob. Hammerstein Gmbh & Co. Kg | Multiple seat for a vehicle esp. a double seat arrangement where the seat back and the seat surface are pivotal about different axes |
| DE10318699A1 (en) * | 2003-04-24 | 2004-11-25 | Reinert-Ritz Gmbh | Plastic stop valve for fluid pipes comprises a valve body provided with diametrically opposite neck sections installed in bearing sleeves which are insertable through a radial bore in the valve housing |
| CN201121731Y (en) * | 2007-12-07 | 2008-09-24 | 江苏神通阀门股份有限公司 | Limiting mechanism of ball valve |
| CN201246487Y (en) * | 2008-08-19 | 2009-05-27 | 浙江盾安禾田金属有限公司 | Ball valve switch structure |
| CN201330864Y (en) * | 2008-12-05 | 2009-10-21 | 北京市阀门总厂(集团)有限公司 | Metal hard seal ball valve provided with flexible sealing system |
| CN201339725Y (en) * | 2009-01-23 | 2009-11-04 | 浙江鸿森机械有限公司 | Spacing ring for valve and valve adopting spacing ring |
| CN201354863Y (en) * | 2009-03-04 | 2009-12-02 | 林继良 | Water control switch |
| WO2011133121A1 (en) * | 2010-04-22 | 2011-10-27 | Valf Sanayii A.S. | Ball valve with stop |
| WO2012075692A1 (en) * | 2010-12-10 | 2012-06-14 | 上海鸿润科技有限公司 | Valve and valve core assembly thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114243A (en) * | 2017-06-22 | 2019-01-01 | 大田精密工业股份有限公司 | Tap with integrated ball valve |
| CN111197663A (en) * | 2020-02-25 | 2020-05-26 | 四川精控阀门制造有限公司 | Two-body type fixed ball valve and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9279505B2 (en) | Valve core assembly and valve adopting the valve core assembly | |
| AU2019257395B2 (en) | Valve | |
| WO2017202151A1 (en) | Forced seal ball valve | |
| CN102996844A (en) | Limiting ball valve | |
| CN202140582U (en) | Butterfly valve with sealing mechanism and limiting locking device | |
| CN105240545A (en) | Dual-drive friction-free hard-seal butterfly valve | |
| CN102537392B (en) | Pilot operated gate valve | |
| CN204609812U (en) | Coordinated type continuous circulation valve | |
| CN202266691U (en) | Forged steel ball valve structure with lock | |
| CN104141798A (en) | Balance type stop valve | |
| CN203979614U (en) | A kind of inside screw non-rising stem type gate valve that can lock and indicate open/close states | |
| CN105387268A (en) | Device for locking fully opening position or fully closing position of mechanical valve | |
| CN104613183A (en) | High-pressure butterfly valve | |
| CN207648167U (en) | A kind of gate valve easy to operation | |
| CN201866292U (en) | Lightly-opened gate valve | |
| CN205660187U (en) | Right angle valve drilling aligning device | |
| CN202469034U (en) | Pilot-operated gate valve | |
| CN202992202U (en) | Valve in hinged connection with valve element | |
| CN204437353U (en) | A kind of ball valve valve rod assembly stopped ball valve and leak | |
| CN105059693A (en) | Propped-open type container seal plug | |
| CN110671510A (en) | Assembling method of corrugated pipe sealing track ball valve with split type valve rod structure | |
| CN104088838A (en) | Hydraulic control unscrewed one-way valve | |
| CN103498942A (en) | Valve | |
| CN2828307Y (en) | Arrow drilling tool check valve | |
| CN203532801U (en) | Triple-eccentric hard-seal butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130327 |