CN201521438U - Novel flexible one-way valve for bottom valve - Google Patents
Novel flexible one-way valve for bottom valve Download PDFInfo
- Publication number
- CN201521438U CN201521438U CN2009203057472U CN200920305747U CN201521438U CN 201521438 U CN201521438 U CN 201521438U CN 2009203057472 U CN2009203057472 U CN 2009203057472U CN 200920305747 U CN200920305747 U CN 200920305747U CN 201521438 U CN201521438 U CN 201521438U
- Authority
- CN
- China
- Prior art keywords
- valve
- flexible
- water
- flap
- valve clack
- 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
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to a novel flexible one-way valve for a bottom valve and used in coordination with a drainage pump. The one-way valve comprises a valve body and a valve clack, wherein the valve clack is fixed on the valve body, and is in the shape of a flexible duckbill; and a sealing surface is arranged at the top of the valve clack. When a water pump is started for pumping a liquid medium, the liquid medium props the sealing surface of the valve clack open under the action of upper-and-lower pressure difference, so that water drains from the flexible bottom valve; and on the contrary, the water pump is stopped, the liquid medium flows back, the sealing surface of the valve clack is bonded with the back surface of the whole valve clack under pressure, so that water sealing is achieved. The valve clack adopts a flexible rubber structure, and has the characteristics of rust resistance, seizure prevention, sedimentation prevention and winding prevention, no manual maintenance, long service life and the like. The one-way valve is widely applicable to various drain equipment.
Description
Technical field
The utility model relates to a kind of and the matching used one-way valve of draining pump, particularly relates to a kind of bottom valve of draining pump.
Background technique
Bottom valve is an important component part in the drainage equipment; the bottom valve that uses is by flap at present; valve body; parts such as filter screen are formed; it is actually the one-way cock of a flap along the bottom valve axial motion; to prevent when the water and the leakage of water when shutting down; when pump operation; form vacuum in the suction sleeve; extraneous air pressure impels flap to open along moving a segment distance on the bottom valve axis; thereby water is extracted out; when water pump shut down, the water in the suction sleeve produced pressure to the flap back side, and flap is closed; the bottom valve of this structure is because the opening ways of flap is to move horizontally; and flap is positioned at the center position of runner, and the water that sucks bottom valve is forced on the flap and collides; flow out from the surrounding of flap the friction back, and resistance is very big; increase the net positive suction head in the suction sleeve, thereby influenced the suction lift of water pump.At this situation, the bottom valve that people's development makes new advances, (notification number is CN2084113U as Chinese patent, application number is 91212196.3) a kind of " Energy saving foot valve " disclosed, it comprises valve, three parts of valve body and valve seat, valve is by valve gap, coupling shaft, valve pad and pressing plate are formed, valve gap is provided with equilibrium block and is connected axis hole, pressing plate is installed in the valve pad on the valve gap by screw, valve gap is installed on the axle bed of valve body and can sways by coupling shaft, the cavity that the equilibrium block when valve body is provided with valve opening and closing on the valve gap sways, and valve seat is provided with water intake, filter screen and axle bed, valve body is connected with valve seat with pad by bolt, it reduces the friction of water and valve, has improved the suction lift of water pump, still, valve body is owing to have the cavity that equilibrium block rotates, therefore its out-of-shape is difficult for making, and volume is big simultaneously, Heavy Weight, be unfavorable for installing and using, cost is higher.And for example (notification number is CN2118176U to Chinese patent; application number is 92214211.4) a kind of " Centrifugal water pump recloser bottom valve " disclosed; it has a double flowing tube and a rotating flap; when drawing water; flap is by inhaling on the end face of the small flow channels of double flowing tube; formation is similar to the state that draws water of without bottom valve; utilize the impact force of recirculation water during shutdown, flap is gone back to, force it to close at last through small flow channels; when it draws water; flap is similar to erectility, and the resistance of water is little, but the complex structure of its double flowing tube; be difficult for making; use the impact force of small flow channels water to close flap in addition, sensitivity is not high, exists volume big simultaneously yet; Heavy Weight; be unfavorable for installing and using the defective that cost is higher.
The model utility content
The utility model purpose is to provide a kind of flexible one-way valve of bottom valve of new structure, adopts flexible Duckbill type flap, have simple in structure, make and installation, cost is lower, obturation effect is good characteristics easily.
The technological scheme that realizes the utility model purpose is:
The flexible one-way valve of a kind of novel bottom valve comprises valve body and flap, and described flap is fixed on the described valve body, it is characterized in that: described flap is flexible Duckbill type, and a sealing surface is arranged at its top.
The utility model compared with prior art has following advantage:
1. uncovered down, the sealing surface of flap up.When starting mode of pump pumping liquid medium, because inlet pipeline forms negative pressure, liquid medium struts the sealing surface of flap, flexible bottom valve water outlet under differential pressure action up and down.Otherwise liquid medium falls after rise after the termination of pumping, and the sealing surface of flap and whole flap back side pressurized are fitted, and realizes sealing and closes water.
2. flap adopts the flexible rubber structure, has corrosion resistant, anti-clamping stagnation, anti-alluvial and antiwind, need not the manual maintenance maintenance, working life characteristics such as height, ordinary rubber can keep the life-span more than 25 years under water, special rubber even can keep the life-span in 50 years.
3. utilize oppositely to close to press and realize reliable sealing, improved the anti-back flow effect with self elasticity.
4. cracking pressure is little, and loss of head is little, is about 1/10 of existing bottom valve.
5. applied widely, clear water, sewage, high and low temperature medium all can use.
Description of drawings
Fig. 1 is the structural representation of novel bottom valve described in the utility model with flexible one-way valve
Structural representation when Fig. 2 is a novel bottom valve described in the utility model with flexible one-way valve water outlet
1. valve body 2. flaps 3. sealing surfaces
Embodiment
As can be seen, the flexible one-way valve of a kind of novel bottom valve comprises valve body 1 and flap 2 from Fig. 1 and Fig. 2, and described flap 2 is fixed on the described valve body 1, it is characterized in that: described flap 2 is flexible Duckbill type, and a sealing surface 3 is arranged at its top.Flap 2 is uncovered down, sealing surface up.When starting mode of pump pumping liquid medium, because inlet pipeline forms negative pressure, liquid medium struts the sealing surface 3 of flap 2, flexible bottom valve water outlet under differential pressure action up and down.Otherwise liquid medium falls after rise after the termination of pumping, and the sealing surface 3 of flap 2 and whole flap 2 back side pressurizeds are fitted, and realize sealing and close water.
Claims (1)
1. the flexible one-way valve of novel bottom valve comprises valve body (1) and flap (2), and described flap (2) is fixed on the described valve body (1), it is characterized in that: described flap (2) is flexible Duckbill type, and a sealing surface (3) is arranged at its top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203057472U CN201521438U (en) | 2009-07-07 | 2009-07-07 | Novel flexible one-way valve for bottom valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203057472U CN201521438U (en) | 2009-07-07 | 2009-07-07 | Novel flexible one-way valve for bottom valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521438U true CN201521438U (en) | 2010-07-07 |
Family
ID=42507615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203057472U Expired - Fee Related CN201521438U (en) | 2009-07-07 | 2009-07-07 | Novel flexible one-way valve for bottom valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521438U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244405A (en) * | 2011-07-15 | 2013-08-14 | 赛乐姆知识产权控股有限责任公司 | Diaphragm pump using duckbill and other types of valves |
| CN103867429A (en) * | 2012-12-07 | 2014-06-18 | 胡军 | Novel valve body and piezoelectric pump with same |
| CN104675681A (en) * | 2014-12-20 | 2015-06-03 | 华南理工大学 | Miniature air-liquid pump |
| CN105595861A (en) * | 2015-12-25 | 2016-05-25 | 四川绵竹科力技术发展有限公司 | Automatic water outlet cork of vacuum bottle |
| CN105741890A (en) * | 2016-04-15 | 2016-07-06 | 新核（北京）能源科技有限公司 | Passive pressurized water reactor protection system and differential-pressure self-operated valves |
| CN106703447A (en) * | 2017-01-20 | 2017-05-24 | 广州三环保有限公司 | Mobile environment-friendly public restroom |
| CN108703815A (en) * | 2018-07-24 | 2018-10-26 | 舒可士（深圳）科技有限公司 | A kind of liquid stream check valve and water toothpick |
| US10253899B2 (en) | 2016-11-08 | 2019-04-09 | Yuhuan Jianglin Plumbing Hose & Parts Co., Ltd. | Flow rate safety valve |
-
2009
- 2009-07-07 CN CN2009203057472U patent/CN201521438U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244405A (en) * | 2011-07-15 | 2013-08-14 | 赛乐姆知识产权控股有限责任公司 | Diaphragm pump using duckbill and other types of valves |
| CN103244405B (en) * | 2011-07-15 | 2018-03-16 | 赛乐姆知识产权控股有限责任公司 | Use the membrane pump of duckbill valve |
| CN103867429A (en) * | 2012-12-07 | 2014-06-18 | 胡军 | Novel valve body and piezoelectric pump with same |
| CN103867429B (en) * | 2012-12-07 | 2016-10-26 | 胡军 | A kind of valve body and there is the piezoelectric pump of this valve body |
| CN104675681A (en) * | 2014-12-20 | 2015-06-03 | 华南理工大学 | Miniature air-liquid pump |
| CN105595861A (en) * | 2015-12-25 | 2016-05-25 | 四川绵竹科力技术发展有限公司 | Automatic water outlet cork of vacuum bottle |
| CN105741890A (en) * | 2016-04-15 | 2016-07-06 | 新核（北京）能源科技有限公司 | Passive pressurized water reactor protection system and differential-pressure self-operated valves |
| US10253899B2 (en) | 2016-11-08 | 2019-04-09 | Yuhuan Jianglin Plumbing Hose & Parts Co., Ltd. | Flow rate safety valve |
| CN106703447A (en) * | 2017-01-20 | 2017-05-24 | 广州三环保有限公司 | Mobile environment-friendly public restroom |
| CN108703815A (en) * | 2018-07-24 | 2018-10-26 | 舒可士（深圳）科技有限公司 | A kind of liquid stream check valve and water toothpick |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201521438U (en) | Novel flexible one-way valve for bottom valve | |
| CN201363426Y (en) | Vacuum interface valve capable of automatically cleaning sealing surface by adopting fluid rotation | |
| CN101614292B (en) | Backflow preventer | |
| CN2802220Y (en) | Check valve | |
| CN214577730U (en) | High-efficiency energy-saving vertical single-stage centrifugal water pump | |
| CN111473004B (en) | High-lift pump | |
| CN1727692B (en) | Bottom valve of draining pump | |
| CN2821237Y (en) | Energy saving type water drain pump bottom valve | |
| CN206802399U (en) | Lossless glueballs cage check-valves | |
| CN209278160U (en) | Blowdown pump lift self-checking device | |
| CN208966621U (en) | A kind of Novel flushing pressure type agricultural pump | |
| CN201547347U (en) | Backflow preventer | |
| CN208152176U (en) | A kind of flushing device for toilet electromagnetic valve component | |
| CN206175243U (en) | A self priming pump | |
| CN201228808Y (en) | Ball-cock | |
| CN103883766B (en) | Check valve for self-priming system | |
| CN213332567U (en) | Bottom valve | |
| CN2895927Y (en) | Quick-closing hammer-free energy-saving non-return valve | |
| CN220415703U (en) | Double-suction pump capable of preventing groove from accumulating water | |
| CN210484703U (en) | Novel mute check valve | |
| CN215980994U (en) | Full latus rectum high efficiency check valve | |
| CN215410213U (en) | Check valve convenient to dismouting | |
| CN220620328U (en) | Flush device of embedded closestool | |
| CN206582117U (en) | A kind of new centrifugal pump of horizontal axis peculiar to vessel | |
| CN220354553U (en) | Low resistance backflow preventer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TAIZHOU SHENGHE WATER TREATMENT EQUIPMENT MANUFACTURING CO., LTD. Assignor: Dai Wenping Contract record no.: 2013320010042 Denomination of utility model: Novel flexible one-way valve for bottom valve Granted publication date: 20100707 License type: Exclusive License Record date: 20130320 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| 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: 20100707 Termination date: 20170707 |