CN104712796A - Series multiple type check valve - Google Patents
Series multiple type check valve Download PDFInfo
- Publication number
- CN104712796A CN104712796A CN201310705621.5A CN201310705621A CN104712796A CN 104712796 A CN104712796 A CN 104712796A CN 201310705621 A CN201310705621 A CN 201310705621A CN 104712796 A CN104712796 A CN 104712796A
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- CN
- China
- Prior art keywords
- check valve
- series multiple
- multiple formula
- fluid
- formula check
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/042—Check valves with guided rigid valve members shaped as balls with a plurality of balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention provides a series multiple type check valve. The series multiple type check valve comprises a first single body and a second single body which are connected in series and communicated. The first single body is provided with a first sealing set and a first elastic body, wherein the first sealing set opens an inlet through the fluid pressure effect, and the first elastic body is forced to abut against the first sealing set to seal the inlet in an abutting mode. The second single body is provided with a passageway and at least one second sealing set adjacent to the passageway, wherein the passageway allows inflow and outflow of fluid, the second sealing set is provided with a containing chamber which is communicated with the passageway and contains a spherical part, and the spherical part opens or seals the passageway under the pressure effect. Thus, the first sealing set which is good in sealing effect and high in response speed is utilized to maintain the pressure of the fluid entering the check valve and the spherical part which is high in response speed, under the condition that the flow speed of the fluid is not affected, the fluid can flow through the check valve only after reaching required fluid pressure, the good check effect is achieved, and the stability of the fluid pressure can be maintained.
Description
Technical field
The present invention relates to a kind of check valve, particularly relate to and a kind ofly receiving the series multiple formula check valve used under up-flow amount to microlitre flow.
Background technique
Consult Fig. 1, announce the check valve 1 of M366624 for TaiWan, China, it is with most check valve is identical on the market, mainly has a sleeve 11, sealing group 12, and an elastic component 13.This sleeve 11 have for fluid into and out of an entrance 111 and one export 112.Sealing group 12 is contained in this sleeve 11, and has a positioning block 121, and is arranged on a packing ring 122 of this positioning block 121.This elastic component 13 is arranged on this positioning block 121 and is in reverse to an end face of this entrance 111 and this entrance 111 displacement relative of this positioning block 121 of ejection, closes this entrance 111 to this packing ring 122 and this sleeve 11 1 internal surface air tight contact.
Whereby, when fluid is entered by this entrance 111 and hydrodynamic pressure is greater than the elastic acting force of this elastic component 13, hydrodynamic pressure will this positioning block 121 of ejection with this packing ring 122 away from this entrance 111, and the check valve 1 that release fluids is passed through.Contrary, when fluid is entered by this outlet 112, hydrodynamic pressure can be formed to add with the elastic acting force of this elastic component 13 takes advantage of effect, this positioning block 121 of ejection together with this packing ring 122 more with this sleeve 11 internal surface air tight contact, anti-fluid refluxes.
But, because fluid only need after the elastic acting force overcoming this elastic component 13, just this check valve 1 can be passed through, therefore, if aforementioned check valve 1 be applied in by receive up-flow amount enter systematic environment (as the high pressure liquid analysis system) of microlitre flow time, hydrodynamic pressure will be caused to produce fluctuation because volume becomes large, have the situation that hydrodynamic pressure is stable not.
Summary of the invention
The object of the present invention is to provide a kind of series multiple formula check valve that can maintain hydrodynamic pressure stability.
Series multiple formula check valve of the present invention, comprise first monomer and a second comonomer.This first monomer have enter for fluid an entrance, by this fluid pressure action towards opening first sealing group of this entrance away from this Way in displacement, and compel to support this first sealing group closes this entrance elastomer towards this Way in displacement.This second comonomer and this first monomer are contacted and are interconnected, and have and for fluid into and out of a runner, and at least one second sealing group of this runner adjacent, this second sealing group has with this flow passage and the room supplying a ball element accommodating, this ball element is when this room fluid pressure is greater than runner fluid pressure, close this runner, and when room fluid pressure is less than runner fluid pressure, open this runner.
Series multiple formula check valve of the present invention, this first monomer has first sleeve supplying this first sealing group, this elastomer accommodating.
Series multiple formula check valve of the present invention, this first sealing group has the heart seat be set in this first sleeve, and is arranged on this heart seat surface to an end face of this entrance and around a packing ring of this entrance.
Series multiple formula check valve of the present invention, this first sealing group also has and is combined and a spigot of retainer portion packing ring with this heart seat, this packing ring by under the pressure of this heart seat with exposed part outside this spigot and this first sleeve internal surface air tight contact.
Series multiple formula check valve of the present invention, this first monomer also has the several ditch gaps being formed in and flowing between this heart seat and this first sleeve internal surface and for this fluid.
Series multiple formula check valve of the present invention, aforementioned ditch gap is formed in this heart seat outer surface.
Series multiple formula check valve of the present invention, this heart seat has the several chases be formed in towards this elastomeric end face.
Series multiple formula check valve of the present invention, this second sealing group has two groups.
Series multiple formula check valve of the present invention, this second comonomer has for accommodating second sleeve of this second sealing group.
Series multiple formula check valve of the present invention, this second sealing group also has and forms a positioning seat of this runner, and form this room and with a position limit socket of this flow passage.
Series multiple formula check valve of the present invention, this series multiple formula check valve also includes a series winding seat, this series winding seat has and connects and close first joint of this first monomer, connection and close second joint of this second comonomer, and run through this first joint with this second joint and be communicated with a through hole of this first monomer and this second comonomer, this elastomer is contained between this first joint and this first sealing group.
Series multiple formula check valve of the present invention, this series multiple formula check valve also includes around an axis and encapsulates a shell of this first monomer, this second comonomer, and close these shell two ends and respectively direct fluid into and out of two joints of this first monomer and this second comonomer.
Beneficial effect of the present invention is: utilize good sealing effect but slow the first sealing group of reaction velocity, maintain the pressure that fluid enters check valve, and with the fast ball element of reaction velocity, when not affecting rate of flow of fluid, make the hydrodynamic pressure that fluid must reach required, just by check valve, not only there is good check effect, and the stability of hydrodynamic pressure can be maintained.
Accompanying drawing explanation
Fig. 1 is a sectional view, illustrates that TaiWan, China announces M366624 case;
Fig. 2 is a three-dimensional exploded view, and a preferred embodiment of the present invention one series multiple formula check valve is described;
Fig. 3 is a three-dimensional exploded view, and one first monomer, a second comonomer and a string seated in this preferred embodiment are described;
Fig. 4 is a combination stereogram of this preferred embodiment;
Fig. 5 is the sectional view along Fig. 4 straight line V-V direction cutting;
Fig. 6 is an amplification view, illustrates that in this preferred embodiment, one first sealing group closes an entrance;
Fig. 7 is an amplification view, illustrates that in this preferred embodiment, 2 second sealing group close a runner;
Fig. 8 is an amplification view, illustrates that the first sealing group in this preferred embodiment opens this entrance;
Fig. 9 is an amplification view, illustrates that the second sealing group in this preferred embodiment opens this runner.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Consult Fig. 2, Fig. 3, Fig. 4, and Fig. 5, a preferred embodiment of series multiple formula check valve of the present invention, comprises first monomer 2, second comonomer 3, series winding seat 4, shell 5, and two joints 6,7.
This first monomer 2 has first sleeve 21, first sealing group 22 sequentially placed along an axis X direction in this first sleeve 21, and an elastomer 23.This first sleeve 21 has direct fluid and enters and an entrance 211 of this first sealing group 22 relatively.This first sealing group 22 has a heart seat 221, be arranged on this heart seat 221 towards an end face of this entrance 211 and around this entrance 211 a packing ring 222, be formed in this heart seat 221 1 outer surfaces and relatively this first sleeve 21 1 internal surfaces several ditch gaps 223, be formed in the several chases 224 of this heart seat 221 towards an end face of this elastomer 23, and to screw togather and a spigot 225 of retainer portion packing ring 222 along this axis X and this heart seat 221.This elastomer 23 has the perforation 231 run through along this axis X.
This second comonomer 3 has second sleeve 31, places two second sealing group 32 into this second sleeve 31 along this axis X, and closes an end cap 33 of this second sleeve 31 one end.This second sleeve 31 has direct fluid and is in reverse to an outlet 311 of this first monomer 2 entrance 211.Aforementioned second sealing group 32 has respectively mutually and neighbour positioning seat 321 and a position limit socket 322, run through along this axis X this positioning seat 321 a runner 323, be formed in this position limit socket 322 and the room 324 be communicated with this runner 323, the ball element 325 be contained in this room 324 along this axis X, and be formed in several grooves 326 of this room 324 1 internal surfaces.
This series winding seat 4 have connect and close this first sleeve 21 first joint 41, connect and close second joint 42 of this second sleeve 31 the other end, and run through this first joint 41 with this second joint 42 and be communicated with this first monomer 2 bore a hole 231 and this second comonomer 3 export 311 a through hole 43.This first joint 41 limits this elastomer 23 further and urges this heart seat 221 and close this entrance 211 with this packing ring 222.
This shell 5 is around this axis X and encapsulate this first monomer 2, this second comonomer 3 and this series winding seat 4.
These shell 5 two ends closed by aforementioned joint 6,7 and direct fluid enters this first monomer 2 by the entrance 211 of this first monomer 2 and flows out this second comonomer 3 by the outlet 311 of this second comonomer 3 respectively.
Consult Fig. 5, Fig. 6, and Fig. 7, what deserves to be explained is, at check valve of the present invention in a system (as high pressure liquid analysis system)) in the process of transmitting fluid, if stop by joint 6 input fluid on the left of drawing, or when the hydrodynamic pressure of internal system is greater than the hydrodynamic pressure inputted by this joint 6, aforementioned second ball element 325 being sealed group 32 can when aforementioned room 324 fluid pressure be greater than runner 323 fluid pressure, with this runner 323 close contact and close this runner 323, simultaneously, this elastomer 23 also can compel to support this heart seat 221 with its elastic acting force, this packing ring 222 is subject under the pressure of this heart seat 221 with exposed part outside this spigot 225 and this first sleeve 21 internal surface air tight contact, and close this entrance 211, reach anti-fluid by the right side of drawing to the effect of reverse flow on the left of drawing.
Consult Fig. 5, Fig. 8, and Fig. 9, when fluid to be entered by the joint 6 on the left of drawing and towards drawing right side flow, and the hydrodynamic pressure at this entrance 211 place is when being greater than the elastic force summation of the hydrodynamic pressure of this first sleeve 21 inside and this elastomer 23, fluid can overcome the elastic force effect of this elastomer 23, push this packing ring 222 and this heart seat 221 along this axis X towards away from displacement on the right side of the direction of this entrance 211 and drawing, fluid is made to enter this first sleeve 21 by the gap of this packing ring 222 and the first sleeve 21 internal surface, and follow aforementioned ditch gap 223 through aforementioned chase 224, this perforation 231, the through hole 43 of this series winding seat 4 enters the runner 323 of this second comonomer 3.
When the hydrodynamic pressure in this room 324 is less than the hydrodynamic pressure in this runner 323, fluid can promote this ball element 325 along this axis X towards away from displacement on the right side of the direction of this runner 323 and drawing, make this ball element 325 depart from this runner 323 and open this runner 323, for the runner 323 of fluid by one of them the second sealing group 32 on the left of drawing, the runner 323 of another the second sealing group 32 on the right side of drawing is entered through former trenches 326, same after ejection ball element 325 departs from this runner 323, make fluid by this outlet 311 towards drawing right side flow.Whereby, with the ball element 325 that reaction velocity is fast, when not affecting rate of flow of fluid, make the hydrodynamic pressure that fluid must reach required, just by this second comonomer 3.
In sum, series multiple formula check valve of the present invention has following advantages and Gong Xiao ︰
The present invention can utilize good sealing effect but slow the first sealing group 22 of reaction velocity, maintain the pressure that fluid enters check valve, and with the fast ball element 325 of reaction velocity, when not affecting rate of flow of fluid, make the hydrodynamic pressure that fluid must reach required, just by check valve, whereby, not only there is good check effect, and not in guard system the flow of fluid how to change, fluid can both be made to maintain the stability of pressure.
Claims (12)
1. a series multiple formula check valve, is characterized in that this series multiple formula check valve comprises:
First monomer, have enter for fluid an entrance, by this fluid pressure action towards opening first sealing group of this entrance away from this Way in displacement, and compel to support this first sealing group closes this entrance elastomer towards this Way in displacement; And
A second comonomer, contact with this first monomer and be interconnected, and have for fluid into and out of a runner, and at least one second sealing group of this runner adjacent, this second sealing group has with this flow passage and the room supplying a ball element accommodating, and this ball element, when this room fluid pressure is greater than runner fluid pressure, closes this runner, and when room fluid pressure is less than runner fluid pressure, open this runner.
2. series multiple formula check valve according to claim 1, is characterized in that, this first monomer has first sleeve supplying this first sealing group, this elastomer accommodating.
3. series multiple formula check valve according to claim 2, is characterized in that, this first sealing group has the heart seat be set in this first sleeve, and is arranged on this heart seat surface to an end face of this entrance and around a packing ring of this entrance.
4. series multiple formula check valve according to claim 3, it is characterized in that, this first sealing group also has and is combined and a spigot of retainer portion packing ring with this heart seat, this packing ring by under the pressure of this heart seat with exposed part outside this spigot and this first sleeve internal surface air tight contact.
5. series multiple formula check valve according to claim 3, is characterized in that, this first monomer also has the several ditch gaps being formed in and flowing between this heart seat and this first sleeve internal surface and for this fluid.
6. series multiple formula check valve according to claim 5, is characterized in that, aforementioned ditch gap is formed in this heart seat outer surface.
7. the series multiple formula check valve according to claim 5 or 6, is characterized in that, this heart seat has the several chases be formed in towards this elastomeric end face.
8. series multiple formula check valve according to claim 1, is characterized in that, this second sealing group has two groups.
9. the series multiple formula check valve according to claim 1 or 8, is characterized in that, this second comonomer has for accommodating second sleeve of this second sealing group.
10. series multiple formula check valve according to claim 9, is characterized in that, this second sealing group also has and forms a positioning seat of this runner, and form this room and with a position limit socket of this flow passage.
11. series multiple formula check valves according to claim 9, it is characterized in that, this series multiple formula check valve also includes a series winding seat, this series winding seat has and connects and close first joint of this first monomer, connection and close second joint of this second comonomer, and run through this first joint with this second joint and be communicated with a through hole of this first monomer and this second comonomer, this elastomer is contained between this first joint and this first sealing group.
12. series multiple formula check valves according to claim 1, it is characterized in that, this series multiple formula check valve also includes around an axis and encapsulates a shell of this first monomer, this second comonomer, and close these shell two ends and respectively direct fluid into and out of two joints of this first monomer and this second comonomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705621.5A CN104712796A (en) | 2013-12-16 | 2013-12-16 | Series multiple type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705621.5A CN104712796A (en) | 2013-12-16 | 2013-12-16 | Series multiple type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712796A true CN104712796A (en) | 2015-06-17 |
Family
ID=53412385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310705621.5A Pending CN104712796A (en) | 2013-12-16 | 2013-12-16 | Series multiple type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135532A (en) * | 2021-10-11 | 2022-03-04 | 烟台艾迪精密机械股份有限公司 | Parallel integrated multi-stage one-way valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3171440A (en) * | 1961-01-04 | 1965-03-02 | Pellegrino E Napolitano | Bleeder valve |
| US3661167A (en) * | 1970-05-25 | 1972-05-09 | A & D Fabricating Co | Chemical feed pump with improved valve means |
| CN2321994Y (en) * | 1998-01-18 | 1999-06-02 | 刘必汉 | Combined explosion wave proof check valve |
| CN2687455Y (en) * | 2004-03-04 | 2005-03-23 | 温州市润新机械制造有限公司 | Double non-return valve |
| JP2010190295A (en) * | 2009-02-17 | 2010-09-02 | Jtekt Corp | Valve device |
| CN201672111U (en) * | 2010-04-27 | 2010-12-15 | 宁波华成阀门有限公司 | Double-check inverse flow preventing device |
| CN103148225A (en) * | 2011-12-06 | 2013-06-12 | 道尼克斯索芙特隆公司 | Control valve, in particular for switching a fluid under high pressure |
-
2013
- 2013-12-16 CN CN201310705621.5A patent/CN104712796A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3171440A (en) * | 1961-01-04 | 1965-03-02 | Pellegrino E Napolitano | Bleeder valve |
| US3661167A (en) * | 1970-05-25 | 1972-05-09 | A & D Fabricating Co | Chemical feed pump with improved valve means |
| CN2321994Y (en) * | 1998-01-18 | 1999-06-02 | 刘必汉 | Combined explosion wave proof check valve |
| CN2687455Y (en) * | 2004-03-04 | 2005-03-23 | 温州市润新机械制造有限公司 | Double non-return valve |
| JP2010190295A (en) * | 2009-02-17 | 2010-09-02 | Jtekt Corp | Valve device |
| CN201672111U (en) * | 2010-04-27 | 2010-12-15 | 宁波华成阀门有限公司 | Double-check inverse flow preventing device |
| CN103148225A (en) * | 2011-12-06 | 2013-06-12 | 道尼克斯索芙特隆公司 | Control valve, in particular for switching a fluid under high pressure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135532A (en) * | 2021-10-11 | 2022-03-04 | 烟台艾迪精密机械股份有限公司 | Parallel integrated multi-stage one-way valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |
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| WD01 | Invention patent application deemed withdrawn after publication |