CN206017900U - A kind of multistage check-valves - Google Patents
A kind of multistage check-valves Download PDFInfo
- Publication number
- CN206017900U CN206017900U CN201620963656.8U CN201620963656U CN206017900U CN 206017900 U CN206017900 U CN 206017900U CN 201620963656 U CN201620963656 U CN 201620963656U CN 206017900 U CN206017900 U CN 206017900U
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- China
- Prior art keywords
- housing
- fixedly connected
- spring
- flap
- rubber
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of multistage check-valves, including valve housing, valve housing includes the first housing, the second housing and the 3rd housing, the profile of the first housing is L-shaped, one end of first housing is fixedly connected with the top of the second housing, the profile of the second housing is truncated cone-shaped, the bottom of the second housing is fixedly connected with the surface of the 3rd housing, the inwall of the first housing 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 utility model is by arranging spring, flap and ring block, when making the hydraulic pressure of water inlet end in first shell body be more than water side hydraulic pressure, so that liquid pushes flap open, by spring-compressed, liquid is flowed out by water side, when the hydraulic pressure of water inlet end is less than water side hydraulic pressure, spring promotes flap to be close to ring block, allows check-valves to prevent liquid from flowing back.
Description
Technical field
The utility model is related to valve technology field, specially a kind of multistage check-valves.
Background technology
Valve is to apply to common zero component 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 on market generally with hydraulic pressure principle, works as water inlet end
When hydraulic pressure is more than water side hydraulic pressure, flap is under pressure and is opened, water body proper flow, when water inlet end hydraulic pressure is less than water side water
During pressure, flap is closed, and prevents the backflow of liquid；But this kind of check-valves can not effectively prevent press water from arm reflux to main
And the backflow phenomenon for occurring, if being applied in domestic water water supply network, there is backflow pollution and then can greatly endanger human health.
Utility model content
The purpose of this utility model is to provide a kind of multistage check-valves, possesses the advantage of the anti-backflow of multistage subsection, solution
Conventional check valves of having determined can not effectively prevent the problem that liquid flows back.
For achieving the above object, the utility model provides following technical scheme：A kind of multistage check-valves, including valve shell
Body, the valve housing include the first housing, the second housing and the 3rd housing, and the profile of first housing is L-shaped, described the
One end of one housing is fixedly connected with the top of the second housing, and the profile of second housing is truncated cone-shaped, second housing
Bottom be fixedly connected with the surface of the 3rd housing, the inwall of first housing is from left to right fixedly connected sequentially and has spring
Seat, ring 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 valve
Lobe, the surface of the flap are provided with rubber ring, and the one side of the flap is fixedly connected with guide post, the guide post socket
In the inside of guide pipe, the inwall of second housing is fixedly connected with the first rubber layer, and the inside of second housing is arranged
The inwall for having ball float, the 3rd housing is fixedly connected with rubber membrane.
Preferably, the ring block includes that block rubber and ring set, one end of the block rubber are connected with one end fixation of ring set
Connect, and ring block generally streamlined structure.
Preferably, the surface of the ball float is provided with the second rubber layer, and ball float is the plastic sphere of hollow sealing.
Preferably, the surface of the rubber membrane is cut with cross crotch.
Preferably, the upper surface area of second housing is 2 times of lower surface area, the maximum secting area of the ball float
It is 1.5 times of the second housing lower surface area.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, the utility model has reached the effect of multistage anti-backflow by arranging flap, ball float and rubber membrane.
2nd, the utility model makes the hydraulic pressure of water inlet end in first shell body be more than by arranging spring, flap and ring block
During water end (W.E.) hydraulic pressure so that liquid pushes flap open, spring-compressed, liquid are flowed out by water side, when the hydraulic pressure of water inlet end is less than out
During water end (W.E.) hydraulic pressure, spring promotes flap to be close to ring block, allows check-valves to prevent liquid from flowing back, by setting ball float, the
Two housings and the first rubber layer, make the liquid of the second housing bottom hold up ball float, open fluid flow paths, if liquid pressure
Power is too low, then ball float is pushed by gravity, contacts with the second housing, fluid flow paths are closed, by arranging rubber membrane, rubber
The surface of film is cut with cross crotch, backs down rubber membrane by hydraulic pressure, flows liquid into, and hydraulic pressure is too low, then rubber membrane leans on itself
Elasticity produces elastic recovery, liquid is flowed into.
Description of the drawings
Cross-sectional views of the Fig. 1 for the utility model front view.
In figure：1 valve housing, 101 first housings, 102 second housings, 103 the 3rd housings, 2 spring bases, 3 ring blocks, 31
Block rubber, 32 ring sets, 4 guide pipes, 5 springs, 6 flaps, 7 rubber rings, 8 guide posts, 9 first rubber layers, 10 ball floats, 11 rubber
Film, 12 second rubber layers.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Embodiment in based on the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1 is referred to, a kind of multistage check-valves, including valve housing 1, valve housing 1 includes the first housing 101, second
Housing 102 and the 3rd housing 103, the profile of the first housing 101 is L-shaped, one end of the first housing 101 and the second housing 102
Top is fixedly connected, and the profile of the second housing 102 is truncated cone-shaped, and the upper surface area of the second housing 102 is the 2 of lower surface area
Times, the bottom of the second housing 102 is fixedly connected with the surface of the 3rd housing 103, and the inwall of the first housing 101 is from left to right successively
Spring base 2, ring block 3 and guide pipe 4 is fixedly connected with, ring block 3 includes block rubber 31 and ring set 32, one end of block rubber 31
It is fixedly connected with one end of ring set 32, and the generally streamlined structure of ring block 3, block rubber 31 is set, makes device obturation effect
More preferably, and the generally streamlined of ring block 3, reduce the liquid loss of flood peak, 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 arranging spring 5, flap 6 and ring block
3, when making the hydraulic pressure of water inlet end in the first housing 101 be more than water side hydraulic pressure so that liquid pushes flap 6 open, and spring 5 is compressed,
Liquid is flowed out by water side, and when the hydraulic pressure of water inlet end is less than water side hydraulic pressure, spring 5 promotes flap 6 to be close to ring block 3,
Close which, prevent liquid backflow, the one side of flap 6 from being fixedly connected with guide post 8, guide post 8 is socketed in the interior of guide pipe 4
Portion, arranges guide post 8 and guide pipe 4, allows flap 6 along linear motion, it is to avoid due to the skew of flap 6 make poorly sealed
Real, the inwall of the second housing 102 is fixedly connected with the first rubber layer 9, and the second housing 102 is internally provided with ball float 10, ball float
10 surface is provided with the second rubber layer 12, and ball float 10 is the plastic sphere of hollow sealing, and ball float 10 is hollow sealing plastics
Ball makes its weightening of will not intaking, and the buoyancy of needs is relatively low, reduces the loss of flood peak, and the maximum secting area of ball float 10 is the second housing
1.5 times of 102 lower surface areas, by arranging ball float 10, the second housing 102 and the first rubber layer 9, make 102 bottom of the second housing
Ball float 10 is held up by the liquid in portion, opens fluid flow paths, if fluid pressure is too low, ball float 10 is pushed by gravity, with
Second housing 102 is contacted, and fluid flow paths are closed, and the inwall of the 3rd housing 103 is fixedly connected with rubber membrane 11, rubber membrane
11 surface is cut with cross crotch, and by arranging rubber membrane 11, the surface of rubber membrane 11 is cut with cross crotch, by hydraulic pressure by rubber
Glued membrane 11 is backed down, and is flowed liquid into, and hydraulic pressure is too low, then rubber membrane 11 produces elastic recovery by natural resiliency, liquid is flowed
Enter.
During use, liquid is flowed into by water inlet end, opens rubber membrane 11 by hydraulic pressure, and liquid flows into second shell body 102, will
Ball float 10 holds up, and continues to flow into the first housing 101, and hydraulic pressure is more than water side then compression spring 5, opens flap 6, so that liquid
Body flows out, and when water feeding pressure is less than water side hydraulic pressure, spring 5 is promoted flap 6, rubber ring 7 is in close contact with block rubber 31, will
Pathway closure, while ball float 10 is pushed by gravity so as to which second rubber layer 12 on surface is combined closely with the first rubber layer 9,
The backflow of water is avoided, while the film lobe elastic deformation of rubber membrane 11 is replied, multistage fluid stopping prevents liquid from flowing back.
In sum：The multistage check-valves, by arranging flap 6,11 multistage non-return structure of ball float 10 and rubber membrane, solves
The problem of usual check-valves non-return effect on driving birds is not good.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
Be appreciated that these embodiments can be carried out multiple changes in the case of without departing from principle of the present utility model and spirit, repair
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of multistage check-valves, including valve housing（1）, it is characterised in that：The valve housing（1）Including the first housing
（101）, the second housing（102）With the 3rd housing（103）, first housing（101）Profile be L-shaped, first housing
（101）One end and the second housing（102）Top be fixedly connected, second housing（102）Profile be truncated cone-shaped, described
Second housing（102）Bottom and the 3rd housing（103）Surface be fixedly connected, first housing（101）Inwall 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 post（8）, the guide post（8）It is socketed in guide pipe（4）Interior
Portion, second housing（102）Inwall be fixedly connected with the first rubber layer（9）, second housing（102）Inside arrange
There is ball float（10）, the 3rd housing（103）Inwall be fixedly connected with rubber membrane（11）.
2. a kind of multistage check-valves according to claim 1, it is characterised in that：The ring block（3）Including block rubber
（31）And ring set（32）, the block rubber（31）One end and ring set（32）One end be fixedly connected, and ring block（3）Generally
Streamlined structure.
3. a kind of multistage check-valves according to claim 1, it is characterised in that：The ball float（10）Surface be provided with
Two rubber layers（12）, and ball float（10）Plastic sphere for hollow sealing.
4. 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.
5. a kind of multistage check-valves according to claim 1, it is characterised in that：Second housing（102）Upper surface
Area is 2 times of lower surface area, the ball float（10）Maximum secting area be the second housing（102）The 1.5 of lower surface area
Times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963656.8U CN206017900U (en) | 2016-08-29 | 2016-08-29 | A kind of multistage check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963656.8U CN206017900U (en) | 2016-08-29 | 2016-08-29 | A kind of multistage check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017900U true CN206017900U (en) | 2017-03-15 |
Family
ID=58252885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620963656.8U Expired - Fee Related CN206017900U (en) | 2016-08-29 | 2016-08-29 | A kind of multistage check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224599A (en) * | 2016-08-29 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | Multi-stage check valve |
-
2016
- 2016-08-29 CN CN201620963656.8U patent/CN206017900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224599A (en) * | 2016-08-29 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | Multi-stage check valve |
| CN106224599B (en) * | 2016-08-29 | 2018-07-10 | 约翰斯顿流体科技（无锡）有限公司 | A kind of multistage check-valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20170315 Termination date: 20170829 |