CN103062448B - Anti-leaking check valve - Google Patents
Anti-leaking check valve Download PDFInfo
- Publication number
- CN103062448B CN103062448B CN201210592604.0A CN201210592604A CN103062448B CN 103062448 B CN103062448 B CN 103062448B CN 201210592604 A CN201210592604 A CN 201210592604A CN 103062448 B CN103062448 B CN 103062448B
- Authority
- CN
- China
- Prior art keywords
- check valve
- valve seat
- leakage
- boilor
- return flap
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Images
Landscapes
- Check Valves (AREA)
Abstract
The invention discloses an anti-leaking check valve which comprises a valve body, a valve cover and a stopping component fixed in the valve body. The stopping component comprises a stopping valve clack and a stopping valve seat, a water inlet and a water outlet are arranged on the valve body, the stopping valve seat gradually contracts from the water inlet to the water outlet, the stopping valve clack is annular, one end of the stopping valve clack is fixedly connected with the valve body, and an inner wall of the other end of the stopping valve clack clings to a lateral wall of the stopping valve seat. The anti-leaking check valve is big in forward flow area, good in reverse sealing performance, free of collision during sealing and free of noise.
Description
Technical field
The present invention relates to a kind of leakage-preventing check valve.
Background technique
Before measure water-meter, common installation leakage-preventing check valve reaches and has the current water meter just can measure, and the non-water flow water meter is with regard to non-metering purpose.The patent No. is: ZL200720111885.8 " a kind of energy-conservation induction Drop-proof valve " discloses a kind of energy-conservation induction Drop-proof valve, comprise valve body, valve gap and spool, described spool comprises the valve core be fixedly connected on valve body, valve core is a tube structure, and the valve core upper shed is communicated with water intake, and valve core bottom sidewall is provided with the hole be communicated with water outlet, valve core inside is provided with the slide block that can slide up and down, and slider side wall is provided with the intercommunicating pore corresponding with the hole on described valve core.Slide to realize the switch of valve by slide block, yet, because the hole flow area of valve core bottom sidewall is little, cause flow also little, can not meet the demand of system to flow; The motion of slide block is not easy to control, and can not arrive the zero leakage effect in lower in reverse fluid flow and pressure; During slide block movement, easily with valve core produce collision, the noise of generation is large and affect working life of valve.
Summary of the invention
That technical problem to be solved by this invention just is to provide is simple in structure, the forward circulation area large, oppositely absence of collision, noiseless a kind of leakage-preventing check valve when good seal performance and sealing.
For solving the problems of the technologies described above, the present invention adopts following technological scheme, a kind of leakage-preventing check valve, comprise valve body, valve gap and be fixed on the retaining element in valve body, described retaining element comprises non-return flap and Boilor check valve seat, and described valve body is provided with water intake and water outlet, described Boilor check valve seat is shunk to water outlet gradually by water intake, described non-return flap is shell-like, and the one end is fixedly connected with described valve body, and the inwall of the other end is close to the sidewall of described Boilor check valve seat.
Preferably, the outer wall rounding off of described non-return flap is to the sidewall of described Boilor check valve seat.
Preferably, the conical surface that the sidewall of described Boilor check valve seat is outwardly convex.
Preferably, described a kind of leakage-preventing check valve also is provided with and makes described non-return flap inhale the driving structure to described Boilor check valve seat.
Preferably, described driving structure comprises the steel ring that is located at described non-return flap wall body inside and the magnet that is located at described Boilor check valve seat inside.
Preferably, described steel ring is located at the middle part of described non-return flap.
Preferably, described Boilor check valve seat is embedded with protruding axle, and described protruding axle is fixedly connected with described valve gap.
Preferably, described protruding axle is copper down part, and described Boilor check valve seat is working of plastics.
Preferably, the cross section of described Boilor check valve seat is oval or circular.
Preferably, described valve body is provided with the water hammer energy-dissipating structure, and described water hammer energy-dissipating structure comprises the sleeve that is located at described valve body outer side surface, and described sleeve is communicated with described valve body by pressure transmission hole, establishes the energy dissipating mechanism that piston and spring form in described sleeve.
A kind of leakage-preventing check valve of the present invention, when forward is through-flow, medium acts on non-return flap and Boilor check valve seat, and the non-return flap is washed open from the Boilor check valve seat sidewall, medium flows through from the space between non-return flap and Boilor check valve seat, flow area is larger, while oppositely sealing, due to the shape design of conical shape check valve lobe and Boilor check valve seat, the non-return flap is adsorbed on Boilor check valve seat, good sealing effect, and when sealing Boilor check valve seat and non-return flap absence of collision, can not produce noise.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is a kind of leakage-preventing check valve structural representation of the present invention;
Fig. 2 is that in Fig. 1, Boilor check valve seat coordinates schematic diagram with the non-return flap;
Fig. 3 is non-return valve flap structure schematic diagram in Fig. 1;
Fig. 4 is non-return valve seat construction schematic diagram in Fig. 1;
The cross-sectional schematic that Fig. 5 is Fig. 4;
The local enlarged diagram that Fig. 6 is Fig. 1.
Embodiment
As shown in Figures 1 to 5, be a kind of leakage-preventing check valve of the present invention, comprise valve body 14, valve gap 1 and be fixed on the retaining element in valve body 14.Described valve 14 bodies are provided with water intake 141 and water outlet 142, and described valve gap 1 is fixedly connected with described water intake 141.Described retaining element comprises non-return flap 12 and Boilor check valve seat 5, described Boilor check valve seat 5 is shunk to water outlet gradually by water intake, described Boilor check valve seat 5 is embedded with protruding axle 4, described protruding axle 4 is fixedly connected with described valve gap 1, concrete, described protruding axle 4 is provided with outside thread, and described protruding axle 4 passes described valve gap 1, and fixing by nut 2 and elastic washer 3.Described protruding axle 4 is copper down part, and described Boilor check valve seat 5 is working of plastics, and described protruding axle 4 copper products can guarantee the reliability connected, and be compared to working of plastics and be difficult for losing efficacy, and described Boilor check valve seat 5 can be cost-saving for working of plastics.Described Boilor check valve seat 5 combines by Shooting Technique and described protruding axle 4, is provided with boss on the junction plane of described Boilor check valve seat 5 and described protruding axle 4 and strengthens the combination force between described Boilor check valve seat 5 and described protruding axle 4 with the structure that depression matches.
Described non-return flap 12 is ring-type, and the one end is fixedly connected with described valve body 14, and the inwall of the other end is close to the sidewall of described Boilor check valve seat 5.In present embodiment, described non-return flap 12 is adopted as tapered collar, and its large end is fixedly connected with described valve body 14, and the inwall of its small end is close to the sidewall of described Boilor check valve seat 5.The large end of described non-return flap 12 is an annulus, and annulus is folded between described valve gap 1 and described valve body 14, and described annulus is provided with boss, and described boss matches with the groove on described valve gap 1, plays seal action.Described non-return flap 12 is NBR (nitrile butadiene rubber, nitrile butadiene rubber) rubber material, has wear resistance and tightness.Described non-return flap 12 can also adopt the profile of other shell-likes,
The outer wall arc transition of described non-return flap 12 is to the sidewall of described Boilor check valve seat 5.By this arc transition, play reverse sealing when the medium reverse flow.
The conical surface that the sidewall of described Boilor check valve seat 5 is outwardly convex, during the medium forward flow, resistance is less.
Described a kind of leakage-preventing check valve also is provided with the driving structure that described non-return flap 12 is inhaled to described Boilor check valve seat 5.Described driving structure comprises the steel ring 13 that is located at described non-return flap 12 wall body inside and the magnet 6 that is located at described Boilor check valve seat 5 inside.Described steel ring 13 is located at the middle part of described non-return flap, and described Boilor check valve seat 5 inside are provided with the holding cavity of accommodating described magnet 6, and described magnet 6 is sealed in described holding cavity inside by epoxy resin pad 7.Described magnet 6 is sealed in described Boilor check valve seat 5, not with medium contact, avoids getting rusty, and can increase the service life.The cross section of described Boilor check valve seat 5 is oval or circular, and when ellipse or circle all can make medium through-flow, resistance is less.
When normal water, at the larger pressure reduction of the right and left formation of valve, medium is washed described non-return flap 12 open, between described non-return flap 12 and described Boilor check valve seat 5, flows through, and valve is in opening state, and water meter normally measures.After water tap is closed, the valve two ends are without pressure difference, and described non-return flap 12 is close to the sidewall of described Boilor check valve seat again, and described steel ring 13 and described magnet 6 attract each other, make described non-return flap 12 further be close to described Boilor check valve seat 5, valve is in closed condition.And, in above-mentioned unlatching and closing process, due to the characteristic of described non-return flap 12 with the structure and material of described Boilor check valve seat 5, described Boilor check valve seat 5 and non-return flap 12 absence of collision, can not produce noise.When reverse differential pressure appears in the valve two ends, can make described steel ring 13 inhale to described magnet 6, reach the effect of sealing non-return.Water meter can not dally and reverse yet, and reaches and has the current water meter just can measure, and the non-water flow water meter is with regard to non-metering effect.
As shown in Figure 6, described valve body 14 is provided with the water hammer energy-dissipating structure, described water hammer energy-dissipating structure comprises the sleeve 143 that is located at described valve body 14 outer side surfaces, and described sleeve 143 is communicated with described valve body by pressure transmission hole 144, establishes the energy dissipating mechanism that piston 10 and spring 9 form in described sleeve.Described piston outer wall has two grooves, and described groove, with O-ring seals 11 is installed, seals.Described piston 10 underparts have a groove to match with the external diameter of described spring 9, and the other end of described spring 9 and a friction top 8 offset, and friction top 8 inwalls also have a groove to match with the external diameter of described spring 9.Described friction top is provided with outside thread and matches with the internal thread of described sleeve 143.Described friction top 8 outer walls are provided with six side's step holes in; for screwing described friction top 8; compress certain effect power that described spring 9 can produce while screwing described friction top 8 and be used for the reaction force of balance water hammer while producing to described piston 10; reach and can eliminate ducted water hammer, effectively protect the effect of the miscellaneous part in described non-return flap 12 and described Boilor check valve seat 5 and system.
Claims (7)
1. a leakage-preventing check valve, comprise valve body, valve gap and be fixed on the retaining element in valve body, described retaining element comprises non-return flap and Boilor check valve seat, described valve body is provided with water intake and water outlet, described Boilor check valve seat is shunk to water outlet gradually by water intake, described non-return flap is ring-type, the one end is fixedly connected with described valve body, the inwall of the other end is close to the sidewall of described Boilor check valve seat, described leakage-preventing check valve also is provided with and makes described non-return flap inhale the driving structure to described Boilor check valve seat, it is characterized in that: described driving structure comprises the steel ring that is located at described non-return flap wall body inside and the magnet that is located at described Boilor check valve seat inside, described steel ring is located at the middle part of described non-return flap.
2. a kind of leakage-preventing check valve according to claim 1 is characterized in that: the outer wall rounding off of described non-return flap is to the sidewall of described Boilor check valve seat.
3. a kind of leakage-preventing check valve according to claim 1, is characterized in that: the conical surface that the sidewall of described Boilor check valve seat is outwardly convex.
4. a kind of leakage-preventing check valve according to claim 1, it is characterized in that: described Boilor check valve seat is embedded with protruding axle, and described protruding axle is fixedly connected with described valve gap.
5. a kind of leakage-preventing check valve according to claim 4, it is characterized in that: described protruding axle is copper down part, and described Boilor check valve seat is working of plastics.
6. a kind of leakage-preventing check valve according to claim 1 is characterized in that: the cross section of described Boilor check valve seat is for oval or circular.
7. a kind of leakage-preventing check valve according to claim 1, it is characterized in that: described valve body is provided with the water hammer energy-dissipating structure, described water hammer energy-dissipating structure comprises the sleeve that is located at described valve body outer side surface, described sleeve is communicated with described valve body by pressure transmission hole, establishes the energy dissipating mechanism that piston and spring form in described sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592604.0A CN103062448B (en) | 2012-12-29 | 2012-12-29 | Anti-leaking check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592604.0A CN103062448B (en) | 2012-12-29 | 2012-12-29 | Anti-leaking check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103062448A CN103062448A (en) | 2013-04-24 |
| CN103062448B true CN103062448B (en) | 2014-01-08 |
Family
ID=48105224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210592604.0A Active CN103062448B (en) | 2012-12-29 | 2012-12-29 | Anti-leaking check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062448B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976363A (en) * | 2015-06-25 | 2015-10-14 | 北京奥盛兰石油技术服务有限公司 | High-pressure valve |
| CN105715835A (en) * | 2016-04-29 | 2016-06-29 | 潘豪杰 | Check valve |
| CN111536272B (en) * | 2020-05-06 | 2021-09-14 | 珠海格力电器股份有限公司 | Valve and water supply system |
| CN114396526B (en) * | 2022-02-25 | 2025-09-09 | 青岛海湾化学股份有限公司 | Anti-drip structure and EDC return line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2223389Y (en) * | 1995-06-12 | 1996-03-27 | 兰运光 | Anti-leak water tap |
| CN2284326Y (en) * | 1996-10-23 | 1998-06-17 | 杨文华 | Butterfly slowly-closed check valve |
| CN2709742Y (en) * | 2004-07-21 | 2005-07-13 | 上海奥新阀门制造有限公司 | Check valve |
| US20090256101A1 (en) * | 2008-04-09 | 2009-10-15 | Hatton Jason D | Valve Assembly |
| CN202392201U (en) * | 2012-02-21 | 2012-08-22 | 重庆市智能水表有限责任公司 | Anti-drip check valve |
-
2012
- 2012-12-29 CN CN201210592604.0A patent/CN103062448B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2223389Y (en) * | 1995-06-12 | 1996-03-27 | 兰运光 | Anti-leak water tap |
| CN2284326Y (en) * | 1996-10-23 | 1998-06-17 | 杨文华 | Butterfly slowly-closed check valve |
| CN2709742Y (en) * | 2004-07-21 | 2005-07-13 | 上海奥新阀门制造有限公司 | Check valve |
| US20090256101A1 (en) * | 2008-04-09 | 2009-10-15 | Hatton Jason D | Valve Assembly |
| CN202392201U (en) * | 2012-02-21 | 2012-08-22 | 重庆市智能水表有限责任公司 | Anti-drip check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103062448A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103062448B (en) | Anti-leaking check valve | |
| CN205244403U (en) | Two way seal control valve | |
| CN103343826B (en) | Non-return valve | |
| CN104728509A (en) | Solenoid valve and refrigeration system with same | |
| CN201884700U (en) | High-performance pressure balance type bushing plug valve | |
| CN201228774Y (en) | Structure improved stop valve | |
| CN201396488Y (en) | Novel check valve | |
| CN202081763U (en) | Floor spring with simple structure | |
| CN202852086U (en) | Double-valve-clack muffle check valve | |
| CN201687997U (en) | Hydraulic pressure one-way control valve | |
| CN204961861U (en) | Stop valve | |
| CN210510460U (en) | Refrigeration valve | |
| CN211624277U (en) | Improved high-performance ball valve | |
| CN201739553U (en) | Elastic valve seat of ball valve | |
| CN203115111U (en) | Safe stop valve | |
| CN208106709U (en) | Automatic exhaust valve device | |
| CN201764040U (en) | Stop check valve | |
| CN202927161U (en) | Water pump control valve with good sealing performance | |
| CN222163598U (en) | Anti-scouring stop valve | |
| CN207064738U (en) | The check valve assembly of Novel garden pump | |
| CN205978616U (en) | Poor reversing valve core of non -pressure | |
| CN218543296U (en) | Electromagnetic one-way valve | |
| CN202520283U (en) | Check valve for oil well | |
| CN210950029U (en) | Three-way ball valve | |
| CN201593611U (en) | High-temperature high-pressure temperature-pressure-reducing 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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 311835 Zhuji port industrial area, Zhejiang Patentee after: ZHEJIANG DUNAN VALVE Co.,Ltd. Address before: 311835 Zhuji City, Zhejiang Province Industrial Zone, mouth shop Patentee before: ZHEJIANG DUNAN VALVE Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 311800 Zhejiang city in Shaoxing Province town of Zhuji city shop Industrial Zone Patentee after: Zhejiang deai Intelligent Control Technology Co.,Ltd. Address before: 311835 Zhuji port industrial area, Zhejiang Patentee before: ZHEJIANG DUNAN VALVE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Drip proof check valve Effective date of registration: 20211220 Granted publication date: 20140108 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang deai Intelligent Control Technology Co.,Ltd. Registration number: Y2021980015397 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230724 Granted publication date: 20140108 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang deai Intelligent Control Technology Co.,Ltd. Registration number: Y2021980015397 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |