CN211875186U - Double-ball check valve - Google Patents
Double-ball check valve Download PDFInfo
- Publication number
- CN211875186U CN211875186U CN202020456706.XU CN202020456706U CN211875186U CN 211875186 U CN211875186 U CN 211875186U CN 202020456706 U CN202020456706 U CN 202020456706U CN 211875186 U CN211875186 U CN 211875186U
- Authority
- CN
- China
- Prior art keywords
- ball
- annular channel
- valve body
- liquid outlet
- check valve
- 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 - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Check Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a two ball check valves, include: the valve comprises a valve body, a driving ball and a driven ball; the valve body comprises a liquid inlet pipeline, a liquid outlet pipeline and a middle body, a spherical accommodating cavity with the upper end and the lower end communicated with the liquid outlet pipeline and the liquid inlet pipeline is arranged in the middle body, the driven ball is arranged in the spherical accommodating cavity, and a vertical channel is arranged in the driven ball in the diameter direction; the body is equipped with the annular channel of both ends and liquid outlet pipe and feed liquor pipeline intercommunication about the spherical outer side of holding chamber in the middle of, and the annular channel includes upper segment annular channel, hypomere annular channel and connects the arc wall between the two, and the initiative ball is embedded in the surface of follower ball and locates in the arc wall. The utility model discloses there is silence and the durable characteristics of zero loss more for other check valves, moreover because the metal between driven ball and the middle body seals the form firmly for the leakproofness of check valve is outstanding more.
Description
Technical Field
The utility model belongs to the technical field of the valve, a check valve is related to, a two ball check valves is provided very much.
Background
The check valve is a valve which can block the media from flowing backwards. The common baffle check valve in the existing market, its inside adopts the form of baffle to block fluid refluence, if the water pressure is too big in the pipeline, the water pump opens and stops too fast, the in-process of check valve switch, probably causes the baffle to acutely open and shut, not only produces great noise and vibration, also has certain damage to check valve itself and connecting tube and annex moreover.
Therefore, there is a need for a check valve structure with better performance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two ball check valves, can effectual solution above-mentioned problem.
The technical scheme of the utility model is that: a dual ball check valve comprising: a valve body 100, a driving ball 200, and a driven ball 300; the valve body 100 comprises a liquid inlet pipeline 101 arranged at the lower part, a liquid outlet pipeline 102 arranged at the upper part and a middle body 103 connected between the liquid inlet pipeline and the liquid outlet pipeline 102, a spherical accommodating cavity 103a with the upper end and the lower end communicated with the liquid outlet pipeline 102 and the liquid inlet pipeline 101 is arranged in the middle body 103, the driven ball 300 is arranged in the spherical accommodating cavity 103a, and a vertical channel 301 is arranged in the driven ball 300 in the diameter direction; an annular channel with the upper end and the lower end communicated with the liquid outlet pipeline 102 and the liquid inlet pipeline 101 is arranged on the middle body 103 at one side outside the spherical accommodating cavity 103a, the annular channel comprises an upper section annular channel 103b, a lower section annular channel 103c and an arc-shaped groove 103d connecting the upper section annular channel and the lower section annular channel, and the driving ball 200 is embedded in the surface of the driven ball 300 and is arranged in the arc-shaped groove 103 d; when the water pump is started, the driving ball 200 is blocked at the lower end of the upper annular channel 103b under the action of pressure, and drives the driven ball 300 to roll, so that the vertical channel 301 is communicated with the liquid inlet pipeline 101 and the liquid outlet pipeline 102, when the water pump is stopped, the driving ball 200 is blocked at the upper end of the lower annular channel 103c under the action of gravity, and drives the driven ball 300 to roll, so that the vertical channel 301 is not communicated with the liquid inlet pipeline 101 and the liquid outlet pipeline 102.
Further, the radius of the driving ball 200 is smaller than that of the driven ball 300.
Further, the outer surface of the middle body 103 is formed by two hemispheres with different radii.
Further, the valve body 100 is formed by connecting two valve body units which are symmetrically arranged up and down, so as to form the whole sealing valve body structure.
Furthermore, the upper valve body unit and the lower valve body unit which are symmetrically arranged are welded.
Furthermore, the upper valve body unit and the lower valve body unit which are symmetrically arranged are formed by connecting a sealing element and a flange.
Further, the valve body 100 is made of a105 carbon steel, and the driving ball 200 and the driven ball 300 are made of 304 stainless steel.
The utility model discloses following profitable effect has:
the utility model discloses a form sealed firmly because the driven ball agrees with each other with middle body, when the fluid backward flow, the clearance is less between driven ball and the middle body to when blocking fluid, have silence and the durable characteristics of zero loss more for other check valves, owing to the metal form sealed firmly between driven ball and the middle body, make the more outstanding of leakproofness of check valve moreover.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 100. a valve body; 101. a liquid inlet pipeline; 102. a liquid outlet pipeline; 103. a middle body; 103a, a spherical accommodating cavity; 103b, an upper annular channel; 103c, a lower annular channel; 103d, an arc-shaped groove; 200. an active ball; 300. and (4) a driven ball.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, a double ball check valve includes: valve body 100, driving ball 200, and driven ball 300.
The valve body 100 comprises a liquid inlet pipeline 101 arranged at the lower part, a liquid outlet pipeline 102 arranged at the upper part and a middle body 103 connected between the liquid inlet pipeline 102 and the liquid outlet pipeline 102, a spherical accommodating cavity 103a with the upper end and the lower end communicated with the liquid outlet pipeline 102 and the liquid inlet pipeline 101 is arranged in the middle body 103, the driven ball 300 is arranged in the spherical accommodating cavity 103a, and a vertical channel 301 is arranged in the driven ball 300 in the diameter direction. The middle body 103 at one side outside the spherical accommodating cavity 103a is provided with an annular channel with upper and lower ends communicated with the liquid outlet pipeline 102 and the liquid inlet pipeline 101, the annular channel comprises an upper section annular channel 103b, a lower section annular channel 103c and an arc-shaped groove 103d connecting the upper section annular channel and the lower section annular channel, and the driving ball 200 is embedded in the surface of the driven ball 300 and arranged in the arc-shaped groove 103 d. When the water pump is started, the driving ball 200 is blocked at the lower end of the upper annular channel 103b under the action of pressure, and drives the driven ball 300 to roll, so that the vertical channel 301 is communicated with the liquid inlet pipeline 101 and the liquid outlet pipeline 102, when the water pump is stopped, the driving ball 200 is blocked at the upper end of the lower annular channel 103c under the action of gravity, and drives the driven ball 300 to roll, so that the vertical channel 301 is not communicated with the liquid inlet pipeline 101 and the liquid outlet pipeline 102.
In an embodiment of the present invention, the radius of the driving ball 200 is smaller than the radius of the driven ball 300.
In the embodiment of the present invention, the outer surface of the middle body 103 is formed by two hemispheres with different radii. However, the present invention is not limited thereto, and the outer surface of the middle body 103 may have other shapes.
In the embodiment of the present invention, the valve body 100 is formed by connecting two valve body units symmetrically arranged up and down, and constitutes the whole sealing valve body structure. However, the present invention is not limited thereto, and the valve body 100 may be formed by connecting two valve body units symmetrically arranged in the horizontal direction.
The embodiment of the utility model provides an in, the valve body unit that two upper and lower symmetries set up can weld and form, also can form through sealing member and flange joint. However, the present invention is not limited to this, and the valve body units symmetrically arranged up and down can also be formed by adopting other connection methods.
In the embodiment of the present invention, the valve body 100 is made of a105 carbon steel, and the driving ball 200 and the driven ball 300 are made of 304 stainless steel. However, the present invention is not limited thereto, and the valve body 100, the driving ball 200, and the driven ball 300 may be made of other materials.
The working principle of the utility model is as follows:
after the water pump is started, fluid in the pipeline flows from bottom to top, the driving ball 200 is pushed to roll to the lower end of the upper-section annular channel 103b due to upward pressure formed in the lower-section annular channel 103c, hard seal is formed between the lower end of the upper-section annular channel 103b and the driving ball 200, the driven ball 300 rolls along with the rolling of the driving ball 200, the vertical channel 301 of the driven ball 300 is enabled to be in the same direction with the liquid inlet pipeline 101 and the liquid outlet pipeline 102, and the fluid in the liquid inlet pipeline 101 and the liquid outlet pipeline 102 flows upwards through the vertical channel 301 of the driven ball 300; when the water pump stops, the driving ball 200 rolls downwards to the upper end of the lower section annular channel 103c along the arc-shaped groove 103d through self gravity, hard seal is formed between the upper end of the lower section annular channel 103c and the driving ball 200, the driven ball 300 rolls along with the driving ball 200, the vertical channel 301 of the driven ball 300 is staggered with the liquid inlet pipeline 101 and the liquid outlet pipeline 102, and meanwhile, hard seal is formed between the driven ball 300 and the middle body 103, so that the function of a check valve is achieved.
The utility model discloses a form sealed firmly because driven ball 300 agrees with middle body 103 each other, when the fluid backward flow, the clearance is less between driven ball 300 and the middle body 103 to when blocking the fluid, have more silence and the durable characteristics of zero loss for other check valves, owing to the metal form sealed firmly between driven ball 300 and the middle body 103, make the leakproofness of check valve outstanding more moreover.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A dual ball check valve, comprising: the ball valve comprises a valve body (100), a driving ball (200) and a driven ball (300); the valve body (100) comprises a liquid inlet pipeline (101) arranged at the lower part, a liquid outlet pipeline (102) arranged at the upper part and a middle body (103) connected between the liquid inlet pipeline and the liquid outlet pipeline, a spherical accommodating cavity (103a) with the upper end and the lower end communicated with the liquid outlet pipeline (102) and the liquid inlet pipeline (101) is arranged in the middle body (103), the driven ball (300) is arranged in the spherical accommodating cavity (103a), and a vertical channel (301) is arranged in the driven ball (300) in the diameter direction; an annular channel with the upper end and the lower end communicated with the liquid outlet pipeline (102) and the liquid inlet pipeline (101) is arranged on the middle body (103) at one side outside the spherical accommodating cavity (103a), the annular channel comprises an upper section annular channel (103b), a lower section annular channel (103c) and an arc-shaped groove (103d) connected between the upper section annular channel and the lower section annular channel, and the driving ball (200) is embedded into the surface of the driven ball (300) and is arranged in the arc-shaped groove (103 d); when the water pump is started, the driving ball (200) is plugged at the lower end of the upper section annular channel (103b) under the action of pressure, and drives the driven ball (300) to roll, so that the vertical channel (301) is communicated with the liquid inlet pipeline (101) and the liquid outlet pipeline (102), when the water pump is closed, the driving ball (200) is plugged at the upper end of the lower section annular channel (103c) under the action of gravity, and drives the driven ball (300) to roll, so that the vertical channel (301) is disconnected with the liquid inlet pipeline (101) and the liquid outlet pipeline (102).
2. A dual ball check valve as claimed in claim 1, wherein said master ball (200) has a smaller radius than the slave ball (300).
3. A double ball check valve according to claim 1, wherein the outer surface of the intermediate body (103) is formed by two hemispherical surfaces of different radii.
4. A double ball check valve as claimed in claim 1, wherein said valve body (100) is formed by connecting two valve body units arranged symmetrically up and down to constitute a whole sealed valve body structure.
5. A double ball check valve as defined in claim 4 wherein said upper and lower symmetrically disposed valve body units are welded.
6. The double ball check valve according to claim 4, wherein said upper and lower two symmetrically disposed valve body units are connected by a sealing member and a flange.
7. A dual ball check valve according to claim 1 wherein said valve body (100) is a105 carbon steel and said drive ball (200) and said driven ball (300) are 304 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020456706.XU CN211875186U (en) | 2020-04-01 | 2020-04-01 | Double-ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020456706.XU CN211875186U (en) | 2020-04-01 | 2020-04-01 | Double-ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211875186U true CN211875186U (en) | 2020-11-06 |
Family
ID=73256177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020456706.XU Expired - Fee Related CN211875186U (en) | 2020-04-01 | 2020-04-01 | Double-ball check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211875186U (en) |
-
2020
- 2020-04-01 CN CN202020456706.XU patent/CN211875186U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210705 Address after: 110000 Wangnan village, Wangjia street, Shenfu New District, Shenyang City, Liaoning Province Patentee after: Liaoning Datang International Shenfu Thermal Power Co.,Ltd. Address before: 110000 1-2-1, No. 33-3, Fumin South Street, Hunnan District, Shenyang City, Liaoning Province Patentee before: Wang Yufu |
|
| 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: 20201106 |