CN106224599B - A kind of multistage check-valves - Google Patents
A kind of multistage check-valves Download PDFInfo
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- CN106224599B CN106224599B CN201610744907.8A CN201610744907A CN106224599B CN 106224599 B CN106224599 B CN 106224599B CN 201610744907 A CN201610744907 A CN 201610744907A CN 106224599 B CN106224599 B CN 106224599B
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- shell
- fixedly connected
- flap
- spring
- rubber
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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
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of multistage check-valves, including valve housing, valve housing includes first shell, second shell and third housing, the shape of first shell is L-shaped, one end of first shell is fixedly connected with the top of second shell, the shape of second shell is truncated cone-shaped, the bottom end of second shell is fixedly connected with the surface of third housing, the inner wall of first shell, which is from left to right fixedly connected sequentially, spring base, ring block and guide pipe, the side of spring base is fixedly connected with spring, one end of spring is fixedly connected with flap, and the surface of flap is provided with rubber ring.The present invention is by setting spring, flap and ring block, when the hydraulic pressure of water inlet end in first shell being made to be more than water outlet hydraulic pressure, so that liquid pushes flap open, by spring-compressed, liquid is flowed out by water outlet, when the hydraulic pressure of water inlet end is less than water outlet hydraulic pressure, spring pushes flap to be close to ring block, and check-valves is allow to prevent liquid reflux.
Description
Technical field
The present invention relates to valve technology field, specially a kind of multistage check-valves.
Background technology
Valve is to apply to zero component common in fluid science and technology, and valve is divided into many types, wherein non-return according to use
Valve is a kind of a kind of valve for preventing ex vivo from flowing backwards and using；Check-valves in the market usually with hydraulic pressure principle, works as water inlet end
When hydraulic pressure is more than water outlet hydraulic pressure, flap, which is under pressure, to be opened, water body proper flow, when water inlet end hydraulic pressure is less than water outlet water
During pressure, flap is closed, and prevents the reflux of liquid；However such check-valves not can effectively prevent pressure water from branch pipe reflux to main pipe
And the backflow phenomenon occurred, if applied in domestic water water supply network, backflow pollution, which occurs, can greatly endanger human health.
Invention content
The purpose of the present invention is to provide a kind of multistage check-valves, have the advantages of multistage subsection anti-backflow, solve
Conventional check valves not can effectively prevent the problem of liquid reflux.
To achieve the above object, the present invention provides following technical solution：A kind of multistage check-valves, including valve housing, institute
It states valve housing and includes first shell, second shell and third housing, the shape of the first shell is L-shaped, the first shell
One end of body is fixedly connected with the top of second shell, and the shape of the second shell is truncated cone-shaped, the bottom of the second shell
End is fixedly connected with the surface of third housing, and the inner wall of the first shell is from left to right fixedly connected sequentially and has spring base, ring
Shape block and guide pipe, the side of the spring base are fixedly connected with spring, and one end of the spring is fixedly connected with flap, described
The surface of flap is provided with rubber ring, and the one side of the flap is fixedly connected with guide rod, and the guide rod is socketed in guiding
The inside of pipe, the inner wall of the second shell are fixedly connected with the first rubber layer, and the second shell is internally provided with floating ball,
The inner wall of the third housing is fixedly connected with rubber membrane.
Preferably, the ring block includes rubber block and ring set, and one end of the rubber block and one end of ring set, which are fixed, to be connected
It connects, and ring block generally streamlined structure.
Preferably, the surface of the floating ball is provided with the second rubber layer, and the plastic sphere that floating ball is hollow sealing.
Preferably, the surface of the rubber membrane is cut with cross crotch.
Preferably, the upper surface area of the second shell is 2 times of lower surface area, the maximum secting area of the floating ball
It is 1.5 times of second shell lower surface area.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, the present invention has achieved the effect that multistage anti-backflow by setting flap, floating ball and rubber membrane.
2nd, the present invention makes the hydraulic pressure of water inlet end in first shell be more than water outlet by setting spring, flap and ring block
During hydraulic pressure so that liquid pushes flap open, and by spring-compressed, liquid is flowed out by water outlet, when the hydraulic pressure of water inlet end is less than water outlet
During hydraulic pressure, spring pushes flap to be close to ring block, check-valves is allow to prevent liquid reflux, by setting floating ball, second shell
Body and the first rubber layer, make the liquid of second shell bottom hold up floating ball, open fluid flow paths, if fluid pressure mistake
Low, then floating ball is pushed by gravity, is contacted with second shell, fluid flow paths are closed, by setting rubber membrane, rubber membrane
Surface is cut with cross crotch, by hydraulic pressure that rubber membrane is open-top, flows liquid into, and hydraulic pressure is too low, then rubber membrane leans on natural resiliency
Elastic recovery is generated, makes liquid that can not flow into.
Description of the drawings
Fig. 1 is the cross-sectional view of front view of the present invention.
In figure：1 valve housing, 101 first shells, 102 second shells, 103 third housings, 2 spring bases, 3 ring blocks, 31
Rubber block, 32 ring sets, 4 guide pipes, 5 springs, 6 flaps, 7 rubber rings, 8 guide rods, 9 first rubber layers, 10 floating balls, 11 rubber
Film, 12 second rubber layers.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of multistage check-valves, including valve housing 1, valve housing 1 includes first shell 101, second
Housing 102 and third housing 103, the shape of first shell 101 are L-shaped, one end and the second shell 102 of first shell 101
Top is fixedly connected, and the shape of second shell 102 is truncated cone-shaped, and the upper surface area of second shell 102 is the 2 of lower surface area
Times, the bottom end of second shell 102 is fixedly connected with the surface of third housing 103, and the inner wall of first shell 101 is from left to right successively
Spring base 2, ring block 3 and guide pipe 4 are fixedly connected with, ring block 3 includes rubber block 31 and ring set 32, one end of rubber block 31
It is fixedly connected with one end of ring set 32, and the generally streamlined structure of ring block 3, rubber block 31 is set, makes device obturation effect
More preferably, and the generally streamlined of ring block 3, make liquid head loss reduction, the side of spring base 2 is fixedly connected with spring 5, bullet
One end of spring 5 is fixedly connected with flap 6, and the surface of flap 6 is provided with rubber ring 7, by setting spring 5, flap 6 and ring block
3, when the hydraulic pressure of water inlet end in first shell 101 being made to be more than water outlet hydraulic pressure so that liquid pushes flap 6 open, and spring 5 is compressed,
Liquid is flowed out by water outlet, and when the hydraulic pressure of water inlet end is less than water outlet hydraulic pressure, spring 5 pushes flap 6 to be close to ring block 3,
Make its closure, prevent liquid reflux, the one side of flap 6 is fixedly connected with guide rod 8, and guide rod 8 is socketed in the interior of guide pipe 4
Portion sets guide rod 8 and guide pipe 4, flap 6 is allow the offset due to flap 6 to be avoided to make poorly sealed along linear motion
Real, the inner wall of second shell 102 is fixedly connected with the first rubber layer 9, and second shell 102 is internally provided with floating ball 10, floating ball
10 surface is provided with the second rubber layer 12, and the plastic sphere that floating ball 10 is hollow sealing, and floating ball 10 is hollow sealing plastics
Ball makes its weightening that will not intake, and the buoyancy needed is relatively low, reduces head loss, the maximum secting area of floating ball 10 is second shell
1.5 times of 102 lower surface areas by setting floating ball 10,102 and first rubber layer 9 of second shell, make 102 bottom of second shell
The liquid in portion holds up floating ball 10, opens fluid flow paths, if fluid pressure is too low, floating ball 10 is pushed by gravity, with
Second shell 102 contacts, and fluid flow paths are closed, and the inner wall of third housing 103 is fixedly connected with rubber membrane 11, rubber membrane
11 surface is cut with cross crotch, and by setting rubber membrane 11, the surface of rubber membrane 11 is cut with cross crotch, by hydraulic pressure by rubber
Glued membrane 11 is open-top, flows liquid into, and hydraulic pressure is too low, then rubber membrane 11 generates elastic recovery by natural resiliency, makes liquid that can not flow
Enter.
In use, liquid is flowed by water inlet end, open rubber membrane 11 by hydraulic pressure, liquid flows into second shell 102, will
Floating ball 10 is held up, and continues to flow into first shell 101, and hydraulic pressure is more than water outlet then compressed spring 5, opens flap 6, so as to make liquid
Body flows out, and when water feeding pressure is less than water outlet hydraulic pressure, spring 5 pushes flap 6, rubber ring 7 is made to be in close contact with rubber block 31, will
Channel is closed, while floating ball 10 is pushed by gravity, and the second rubber layer 12 and the first rubber layer 9 for making its surface are combined closely,
The reflux of water is avoided, while the film valve elastic deformation of rubber membrane 11 is replied, multistage fluid stopping prevents liquid reflux.
In summary：The multistage check-valves by setting flap 6, floating ball 10 and the multistage non-return structure of rubber membrane 11, solves
The problem of logical common check-valves non-return is ineffective.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of multistage check-valves, including valve housing（1）, it is characterised in that：The valve housing（1）Including first shell
（101）, second shell（102）With third housing（103）, the first shell（101）Shape for L-shaped, the first shell
（101）One end and second shell（102）Top be fixedly connected, the second shell（102）Shape for truncated cone-shaped, it is described
Second shell（102）Bottom end and third housing（103）Surface be fixedly connected, the first shell（101）Inner wall from a left side
Being fixedly connected sequentially to the right side has spring base（2）, ring block（3）And guide pipe（4）, the spring base（2）Side be fixedly connected
There is spring（5）, the spring（5）One end be fixedly connected with flap（6）, the flap（6）Surface be provided with rubber ring
（7）, the flap（6）One side be fixedly connected with guide rod（8）, the guide rod（8）It is socketed in guide pipe（4）It is interior
Portion, the second shell（102）Inner wall be fixedly connected with the first rubber layer（9）, the second shell（102）Inside setting
There is floating ball（10）, the third housing（103）Inner wall be fixedly connected with rubber membrane（11）；
The ring block（3）Including rubber block（31）And ring set（32）, the rubber block（31）One end and ring set（32）One
End is fixedly connected, and ring block（3）Generally streamlined structure；The floating ball（10）Surface be provided with the second rubber layer
（12）, and floating ball（10）Plastic sphere for hollow sealing.
2. a kind of multistage check-valves according to claim 1, it is characterised in that：The rubber membrane（11）Surface be cut with
Cross crotch.
3. a kind of multistage check-valves according to claim 1, it is characterised in that：The second shell（102）Upper surface
Area is 2 times of lower surface area, the floating ball（10）Maximum secting area be second shell（102）The 1.5 of lower surface area
Times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744907.8A CN106224599B (en) | 2016-08-29 | 2016-08-29 | A kind of multistage check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744907.8A CN106224599B (en) | 2016-08-29 | 2016-08-29 | A kind of multistage check-valves |
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| Publication Number | Publication Date |
|---|---|
| CN106224599A CN106224599A (en) | 2016-12-14 |
| CN106224599B true CN106224599B (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610744907.8A Active CN106224599B (en) | 2016-08-29 | 2016-08-29 | A kind of multistage check-valves |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360382B (en) * | 2019-07-30 | 2020-12-08 | 涡阳县康仕达机电有限公司 | Composite liquid flow pipe joint |
| CN113323890B (en) * | 2021-06-29 | 2022-04-12 | 江苏凯泉泵业制造有限公司 | Three-stage check valve for sewage pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210140A (en) * | 1987-09-24 | 1989-06-01 | Barberi Aldo | A non-return valve |
| CN2321994Y (en) * | 1998-01-18 | 1999-06-02 | 刘必汉 | Combined explosion wave proof check valve |
| EP1604071A1 (en) * | 2003-03-14 | 2005-12-14 | Alfred Kärcher GmbH & Co. KG | Device for preventing backflow |
| CN202182214U (en) * | 2011-08-03 | 2012-04-04 | 潍坊百乐卫浴制品有限公司 | Non-return apparatus of check valve |
| CN204213419U (en) * | 2014-11-03 | 2015-03-18 | 新昌县派尔克机电制造有限公司 | Novel diaphragm type one-way valve |
| CN204387404U (en) * | 2014-12-02 | 2015-06-10 | 厦门绿延节水科技有限公司 | A kind of check valve |
| CN105757298A (en) * | 2016-04-22 | 2016-07-13 | 周有根 | Elbow check valve |
| CN105822801A (en) * | 2016-04-18 | 2016-08-03 | 唐行中 | One-way valve and food processer using one-way valve |
| CN206017900U (en) * | 2016-08-29 | 2017-03-15 | 约翰斯顿流体科技（无锡）有限公司 | A kind of multistage check-valves |
-
2016
- 2016-08-29 CN CN201610744907.8A patent/CN106224599B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210140A (en) * | 1987-09-24 | 1989-06-01 | Barberi Aldo | A non-return valve |
| CN2321994Y (en) * | 1998-01-18 | 1999-06-02 | 刘必汉 | Combined explosion wave proof check valve |
| EP1604071A1 (en) * | 2003-03-14 | 2005-12-14 | Alfred Kärcher GmbH & Co. KG | Device for preventing backflow |
| CN202182214U (en) * | 2011-08-03 | 2012-04-04 | 潍坊百乐卫浴制品有限公司 | Non-return apparatus of check valve |
| CN204213419U (en) * | 2014-11-03 | 2015-03-18 | 新昌县派尔克机电制造有限公司 | Novel diaphragm type one-way valve |
| CN204387404U (en) * | 2014-12-02 | 2015-06-10 | 厦门绿延节水科技有限公司 | A kind of check valve |
| CN105822801A (en) * | 2016-04-18 | 2016-08-03 | 唐行中 | One-way valve and food processer using one-way valve |
| CN105757298A (en) * | 2016-04-22 | 2016-07-13 | 周有根 | Elbow check valve |
| CN206017900U (en) * | 2016-08-29 | 2017-03-15 | 约翰斯顿流体科技（无锡）有限公司 | A kind of multistage check-valves |
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| Publication number | Publication date |
|---|---|
| CN106224599A (en) | 2016-12-14 |
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Effective date of registration: 20220524 Address after: 1301, 13th floor, yanchuang building, 1 YinBai Road, Liyuan Development Zone, Binhu District, Wuxi City, Jiangsu Province, 214000 Patentee after: WUXI LAMOTON TECHNOLOGY CO.,LTD. Address before: No. 605, Lianfu Road, Xishan Economic and Technological Development Zone, Wuxi, Jiangsu 214000 Patentee before: JOHNSTON FLOW TECHNOLOGIES (WUXI) Co.,Ltd. |