CN204083332U - A kind of ball valve with check function - Google Patents
A kind of ball valve with check function Download PDFInfo
- Publication number
- CN204083332U CN204083332U CN201420531344.0U CN201420531344U CN204083332U CN 204083332 U CN204083332 U CN 204083332U CN 201420531344 U CN201420531344 U CN 201420531344U CN 204083332 U CN204083332 U CN 204083332U
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- CN
- China
- Prior art keywords
- valve
- spool
- valve seat
- ball
- ball core
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- 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
A kind of ball valve with check function, comprise valve body, handle, valve rod and ball core, safety check is provided with in the inner chamber of ball core, safety check comprises valve seat, spring, push rod and spool, one end of spool is provided with annular groove, be provided with seal ring in groove, the other end of spool is provided with post holes, and one end end face in the seal ring on spool and ball in-core chamber forms the valve port of safety check; The other end in ball in-core chamber is provided with the internal thread suitable with valve seat outside thread, valve seat is fixed on the one end in ball in-core chamber by screw thread, push rod is fixed on one end of valve seat by screw thread, and the other end of push rod is positioned at the post holes of spool, and the push rod between spool and valve seat is provided with returning spring.The utility model reliability is high, and easy for installation, and namely it saved the installation and operation cost of pipeline, turn avoid to deposit that many places machinery is raw connects the hidden danger causing and ooze dew point and exist, and pipeline fitting operation is simple, namely saves manpower, saves cost again.
Description
Technical field
The utility model relates to valve technology field, is specifically related to the ball valve being with check device.
Background technique
Ball valve is most widely used now, and valve is a kind of pipeline guillotine changing up pass soon.Rotarily drive valve rod bull stick by handle, thus drive ball core to rotate to reach and coordinate with the sealing pair in valve body, realize the open and close function of valve.The current ball valve of current existing ball must be all the state of standard-sized sheet or complete shut-down in opening, to reach the working life of valve.It is a kind of novel valve being suitable for various pressure, various medium, various flow in various pipeline.Compared with the stop valve of same purpose, gate valve, there is the features such as volume is little, lightweight, opening and closing is fast.But existing manual ball valve does not have the shortcoming of automatically closing.In reality is produced, some pipeline does not allow down pressure, realizes if will realize avoiding the phenomenon of the medium back flow caused because loine pressure is poor just must increase a safety check again in pipeline.The cost of whole pipe-line system will increase, and so just have floor space large, invest high, and the connection of safety check and pipeline seals by screw thread mechanicalness, just causes the existence of oozing dew point.
The modal ball valve with check function is install flap on the inner chamber of ball core, and flap, as check device, flows backwards to prevent medium.In use, flap is easily stuck the ball valve with check function of this structure, poor reliability, affects working life.Also have the check device structure of installing integration on the inner chamber of ball core, its installation needs special tool, assembling and inconvenience thereof, maintenance trouble.
Model utility content
The purpose of this utility model is the shortcoming in order to overcome above-mentioned prior art, a kind of structure of the ball valve with check device is provided, safety check and ball valve are combined, namely the installation and operation cost of pipeline has been saved, turn avoid and deposit that many places machinery is raw connects the hidden danger causing and ooze dew point and exist, its structural reliability is high, easy to installation and maintenance simultaneously.
The technological scheme that the technical problem that the utility model solves adopts is:
A kind of ball valve with check function, comprise valve body 4, handle 1, valve rod 2 and ball core 3, valve body 4 is provided with water intake 42 and water outlet 41, ball core 3 is located in valve body 4, ball core 3 is fixedly connected with valve rod 2, valve rod 2 upper end is connected with handle 1, ball core 3 is provided with through inner chamber 5, the rotational of valve rod 2 drives the rotation of ball core 3, realize closedown and the conducting of water intake 42 and water outlet 41, safety check is provided with in the inner chamber 5 that it is characterized in that ball core 4, safety check comprises valve seat 6, spring 7, push rod 8 and spool 10, one end of spool 10 is provided with annular groove, seal ring 9 is provided with in groove, the other end of spool 10 is provided with post holes 101, seal ring 9 on spool 10 and one end end face 31 of ball core 3 inner chamber 5 form the valve port of safety check, valve seat 6 outer wall is provided with outside thread, valve seat 6 inwall is provided with internal thread, the other end of ball core 4 inner chamber 5 is provided with the internal thread suitable with valve seat 6 outside thread, valve seat 6 is fixed on one end of ball core 3 inner chamber 5 by screw thread, one end of push rod 8 is provided with the outside thread suitable with valve seat 6 internal thread, push rod 8 is fixed on one end of valve seat 6 by screw thread, the other end of push rod 8 is positioned at the post holes 101 of spool 10, spool 10 can move left and right, push rod 8 between spool 10 and valve seat 6 is provided with returning spring 7, in ball core 3 open mode, water outlet 41 communicates with the inner chamber 5 of ball core 3 through valve seat 6.
Handle 1 rotating band ovable valve stem 2 circumferencial direction rotates, and the rotational of valve rod 2 drives the rotation of ball core 3, and ball core 3 and the sealing surface of valve body 4 carry out contacting and being separated, and realize closedown and the conducting of water intake 42 and water outlet 41.When the on state of water intake 42 and water outlet 41, the medium of water intake 42 withstands on spool 10, seal ring 9 on spool 10 separates with one end end face 31 of ball core 3 inner chamber 5, the valve port of safety check is opened, due in ball core 3 open mode, water outlet 41 communicates with the inner chamber 5 of ball core 3 through valve seat 6, and medium energy normal stream leads to water outlet 41.When producing pressure difference in pipeline, medium, from banishing in the other direction, under the effect of the spring force of medium and spring 7, makes the seal ring 9 on spool 10 contact with one end end face 31 sealing pair of ball core 3 inner chamber 5, the valve port of safety check is closed, and reaches the effect preventing medium from flowing backwards.The ball valve of the utility model band check device have changed the structure of existing ball valve, namely the ball valve of this model utility band check device of ball valve and safety check being combined has saved the installation and operation cost of pipeline, turn avoid to deposit that many places machinery is raw connects the hidden danger causing and ooze dew point and exist.Pipeline fitting operation is simple, namely saves manpower, saves cost again.
The utility model utilizes the elastic force of spring and the out-of-date pressure of MEDIA FLOW to reach the effect preventing medium from flowing backwards, and its reliability is high, is not easy to lose efficacy, long service life; In addition, because safety check of the present utility model comprises valve seat 6, spring 7, push rod 8 and spool 10, valve seat 6 is fixedly connected with ball core 3 inner chamber 5 screw thread, and push rod 8 is fixedly connected with valve seat 6 screw thread, and it is installed and convenience.
During concrete enforcement, valve seat 6 is provided with spring seat 61, and one end of spring 7 is positioned at spring seat 61.
The beneficial effects of the utility model are: the utility model is provided with safety check in the inner chamber of ball core, safety check adopts the structure of valve seat, spring, push rod and spool, its reliability is high, and it is easy for installation, namely it saved the installation and operation cost of pipeline, turn avoid to deposit that many places machinery is raw connects the hidden danger causing and ooze dew point and exist, and pipeline fitting operation is simple, namely save manpower, save cost again.
Embodiment
In Fig. 1 to Fig. 2, a kind of ball valve with check function, comprise valve body 4, handle 1, valve rod 2 and ball core 3, valve body 4 is provided with water intake 42 and water outlet 41, ball core 3 is located in valve body 4, ball core 3 is fixedly connected with valve rod 2, valve rod 2 upper end is connected with handle 1, ball core 3 is provided with through inner chamber 5, the rotational of valve rod 2 drives the rotation of ball core 3, realize closedown and the conducting of water intake 42 and water outlet 41, safety check is provided with in the inner chamber 5 of ball core 4, safety check comprises valve seat 6, spring 7, push rod 8 and spool 10, one end of spool 10 is provided with annular groove, O-ring seals 9 is provided with in groove, the other end of spool 10 is provided with post holes 101, O-ring seals 9 on spool 10 and one end end face 31 of ball core 3 inner chamber 5 form the valve port of safety check, valve seat 6 is provided with spring seat 61, valve seat 6 outer wall is provided with outside thread, valve seat 6 inwall is provided with internal thread, the other end of ball core 4 inner chamber 5 is provided with the internal thread suitable with valve seat 6 outside thread, valve seat 6 is fixed on one end of ball core 3 inner chamber 5 by screw thread, one end of push rod 8 is provided with the outside thread suitable with valve seat 6 internal thread, push rod 8 is fixed on one end of valve seat 6 by screw thread, the other end of push rod 8 is positioned at the post holes 101 of spool 10, spool 10 can move left and right, push rod 8 between spool 10 and valve seat 6 is provided with returning spring 7, one end of spring 7 is positioned at spring seat 61, in ball core 3 open mode, water outlet 41 communicates with the inner chamber 5 of ball core 3 through valve seat 6.
During use, handle 1 rotating band ovable valve stem 2 circumferencial direction rotates, and the rotational of valve rod 2 drives the rotation of ball core 3, and ball core 3 and the sealing surface of valve body 4 carry out contacting and being separated, and realize closedown and the conducting of water intake 42 and water outlet 41.When the direction of handle 1 is vertical with the direction of valve body 4, valve is in closed condition, is that valve is in opening state when the direction of handle 1 is parallel with the direction of valve body 4.Fig. 1 structural drawing is the opening state of valve.When the on state of water intake 42 and water outlet 41, the medium of water intake 42 withstands on spool 10, O-ring seals 9 on spool 10 separates with one end end face 31 of ball core 3 inner chamber 5, the valve port of safety check is opened, due in ball core 3 open mode, water outlet 41 communicates with the inner chamber 5 of ball core 3 through valve seat 6, and medium energy normal stream leads to water outlet 41.When producing pressure difference in pipeline, medium, from banishing in the other direction, under the effect of the spring force of medium and spring 7, makes the O-ring seals 9 on spool 10 contact with one end end face 31 sealing pair of ball core 3 inner chamber 5, the valve port of safety check is closed, and reaches the effect preventing medium from flowing backwards.The ball valve of the utility model band check device have changed the structure of existing ball valve, namely the ball valve of this model utility band check device of ball valve and safety check being combined has saved the installation and operation cost of pipeline, turn avoid to deposit that many places machinery is raw connects the hidden danger causing and ooze dew point and exist.Pipeline fitting operation is simple, namely saves manpower, saves cost again.
The utility model utilizes the elastic force of spring and the out-of-date pressure of MEDIA FLOW to reach the effect preventing medium from flowing backwards, and its reliability is high, is not easy to lose efficacy, long service life; In addition, because safety check of the present utility model comprises valve seat 6, spring 7, push rod 8 and spool 10, valve seat 6 is fixedly connected with ball core 3 inner chamber 5 screw thread, and push rod 8 is fixedly connected with valve seat 6 screw thread, and it is installed and convenience.
Finally, it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all should think and belong to protection domain of the present utility model.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, model utility is further illustrated.
Fig. 1 is the structure schematic diagram of the utility model embodiment.
Fig. 2 is the decomposition texture schematic diagram of the utility model embodiment ball core and safety check.
In figure: 1, handle 2, valve rod 3, ball core 4, valve body 5, inner chamber 6, valve seat 7, spring 8, push rod 9, seal ring 10, spool 31, end face 41, water outlet 42, water intake 61, spring seat 101, post holes.
Claims (2)
1. one kind has the ball valve of check function, comprise valve body (4), handle (1), valve rod (2) and ball core (3), valve body (4) is provided with water intake (42) and water outlet (41), ball core (3) is located in valve body (4), ball core (3) is fixedly connected with valve rod (2), valve rod (2) upper end is connected with handle (1), ball core (3) is provided with through inner chamber (5), the rotational of valve rod (2) drives the rotation of ball core (3), realize closedown and the conducting of water intake (42) and water outlet (41), safety check is provided with in the inner chamber (5) that it is characterized in that ball core (4), safety check comprises valve seat (6), spring (7), push rod (8) and spool (10), one end of spool (10) is provided with annular groove, seal ring (9) is provided with in groove, the other end of spool (10) is provided with post holes (101), seal ring (9) on spool (10) forms the valve port of safety check with one end end face (31) of ball core (3) inner chamber (5), valve seat (6) outer wall is provided with outside thread, valve seat (6) inwall is provided with internal thread, the other end of ball core (4) inner chamber (5) is provided with the internal thread suitable with valve seat (6) outside thread, valve seat (6) is fixed on one end of ball core (3) inner chamber (5) by screw thread, one end of push rod (8) is provided with the outside thread suitable with valve seat (6) internal thread, push rod (8) is fixed on one end of valve seat (6) by screw thread, the other end of push rod (8) is positioned at the post holes (101) of spool (10), spool (10) can move left and right, push rod (8) between spool (10) and valve seat (6) is provided with returning spring (7), in ball core (3) open mode, water outlet (41) communicates with the inner chamber (5) of ball core (3) through valve seat (6).
2. a kind of ball valve with check function according to claim 1, is characterized in that valve seat (6) is provided with spring seat (61), and one end of spring (7) is positioned at spring seat (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531344.0U CN204083332U (en) | 2014-09-16 | 2014-09-16 | A kind of ball valve with check function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531344.0U CN204083332U (en) | 2014-09-16 | 2014-09-16 | A kind of ball valve with check function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083332U true CN204083332U (en) | 2015-01-07 |
Family
ID=52176053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420531344.0U Expired - Fee Related CN204083332U (en) | 2014-09-16 | 2014-09-16 | A kind of ball valve with check function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083332U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611574A (en) * | 2018-11-28 | 2019-04-12 | 谷向荣 | A kind of combination ball valve with adjusting pressure apparatus |
| CN110274045A (en) * | 2019-06-28 | 2019-09-24 | 上海化工院检测有限公司 | A kind of ball valve with non-return structure |
| CN111649154A (en) * | 2020-06-04 | 2020-09-11 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
| CN113154094A (en) * | 2021-04-02 | 2021-07-23 | 浙江机电职业技术学院 | Pipeline type membrane check valve |
-
2014
- 2014-09-16 CN CN201420531344.0U patent/CN204083332U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611574A (en) * | 2018-11-28 | 2019-04-12 | 谷向荣 | A kind of combination ball valve with adjusting pressure apparatus |
| CN109611574B (en) * | 2018-11-28 | 2019-12-10 | 江苏海达船用阀业有限公司 | Composite ball valve with pressure regulating device |
| CN110274045A (en) * | 2019-06-28 | 2019-09-24 | 上海化工院检测有限公司 | A kind of ball valve with non-return structure |
| CN111649154A (en) * | 2020-06-04 | 2020-09-11 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
| CN111649154B (en) * | 2020-06-04 | 2022-02-15 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
| CN113154094A (en) * | 2021-04-02 | 2021-07-23 | 浙江机电职业技术学院 | Pipeline type membrane check valve |
| CN113154094B (en) * | 2021-04-02 | 2023-11-14 | 浙江机电职业技术学院 | Pipeline type film check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20170916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |