CN209245374U - Check-valve for filter - Google Patents
Check-valve for filter Download PDFInfo
- Publication number
- CN209245374U CN209245374U CN201920812732.9U CN201920812732U CN209245374U CN 209245374 U CN209245374 U CN 209245374U CN 201920812732 U CN201920812732 U CN 201920812732U CN 209245374 U CN209245374 U CN 209245374U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve block
- annular
- check
- filter
- 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
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- Check Valves (AREA)
Abstract
The utility model discloses a kind of check-valve for filter, including the annular valve block for being mounted on the annular valve body inside filter with being connected to valve body periphery, the annular valve block is bowl structure, the outer surface of annular valve block and inner surface are the arcwall face of outwardly convex, thickness is gradually reduced annular valve block from inside to outside, the top of the valve body is integrally attached to the inside edge of annular valve block, the internal diameter of valve body and the internal diameter of valve block are equal, the portion integral of valve body is connected with foundation ring, the internal diameter of foundation ring is less than the internal diameter of valve block, the outer diameter of foundation ring is equal with valve body outer diameter, there is the conical surface being gradually expanded from inside to outside between the inner ring and outer ring of foundation ring.The bowl-shape valve block of the utility model is big with filter end face contact area after being squeezed and deformed, so that valve block and the adsorption capacity of filter end face are big, therefore seals closely.Valve block is gradually reduced from center to edge thickness, and simply by the presence of pressure difference, valve block edge can be very easily adsorbed on end cover of filter.
Description
Technical field
The utility model relates to a kind of check-valve for filter, belong to filter technical field.
Background technique
Filter is the important component in engine lubrication system, is to be filtered to the impurity in machine oil, makes cleaning
Engine oil supplying engine movements component, to extend the service life of engine component.When engine does not work in order to prevent, filter
Machine oil in clear device drains off, and the filter of the prior art is arranged check-valves in housing end plug, this check-valves include valve body and
Valve block, valve body are fixed in filter, and valve block is at cone structure, in filter under the action of oil pressure, valve block inside edge with
End cap contact guarantees whenever filter inside is full of machine oil to prevent machine oil from leaking from the fuel feed hole on end cap, when
Machine oil almost can reach engine block with moment and be lubricated when engine is again started up.Notification number is in CN103557350A
State's patent disclosure is also such check-valves, and valve block is also that ring structure is filled using circular cone, this from section
Valve block consistency of thickness from inside to outside, valve block section is linear, and this valve block is in use, and when engine oil pressure is smaller, valve block is not
It can be in close contact with end cap, cause sealing not close, check-valves valve block is easy to separate from filter end face in use,
Sealing is caused to fail.
Summary of the invention
It can be tightly attached on end cover of filter, be not easy from filter end face the purpose of this utility model is to provide a kind of
Isolated check-valve for filter, the check-valves valve block to solve the prior art seal skill that is not close, being easy sealing failure
Art problem.
The utility model adopts the following technical solution: check-valve for filter, including for being mounted on inside filter
Annular valve body and the annular valve block for being connected to valve body periphery, the annular valve block are bowl structure, the outer surface of annular valve block with
Inner surface is the arcwall face of outwardly convex, and thickness is gradually reduced annular valve block from inside to outside, and the top of the valve body integrally connects
The inside edge in annular valve block is connect, the internal diameter of valve body and the internal diameter of valve block are equal, and the portion integral of valve body is connected with foundation ring, bottom
The internal diameter of circle is less than the internal diameter of valve block, and the outer diameter of foundation ring is equal with valve body outer diameter, has between the inner ring and outer ring of foundation ring by interior
The conical surface being gradually expanded outward.
There is arc transition between the outer surface and inner surface of the outer edge of the annular valve block.
There is arc transition at the inner ring of the annular valve block.
The position that the lower surface of the annular valve block and valve body combine has arc transition.
The foundation ring and valve body inner ring junction have arc transition.
The outer ring edge of the foundation ring has arc transition.
The arc radius of the annular valve block outer surface is 31mm, the distance of center circle annular valve block of annular valve block outer surface circular arc
The distance of axis is 14.8mm, and the arc radius of annular plate valve plate inner surface is 25.9mm, the center of circle of annular plate valve plate inner surface circular arc
Distance away from annular valve shaft line is 17.1mm.
The valve block internal diameter is 31.9mm, and the outer diameter of valve body is 34.3mm, and the foundation ring internal diameter is 24mm.
The check-valves is formed by silicon rubber or nitrile rubber integral production.
The shore hardness of the check-valves is 70 ± 3A.
The utility model has the beneficial effects that it is the bowl-shape of arc surface that the valve block of the utility model check-valves, which is surfaces externally and internally,
Structure, under oil pressure effect, the valve block internal gas of bowl structure is extruded, and valve block is adsorbed on end cover of filter, thus will
Fuel feed hole blocks, and prevents oil leak.In use, gradually the gas in thinning valve block easier can be extruded, bowl-shape valve block is squeezed
It is big with filter end face contact area after compressive strain, so that valve block and the adsorption capacity of filter end face are big, therefore seal very tight
It is close.In addition, the utility model middle valve plate is gradually reduced from center to edge thickness, simply by the presence of pressure difference, valve block edge energy
It is very easily adsorbed on end cover of filter, sealing is also able to achieve when oil pressure is smaller.The utility model is very suitable to various oil
The technical issues of pressure use, sealing is close, and the check-valves valve block for solving the prior art seals not close, easy sealing failure.
Preferably, the arc transition of annular valve block outer edge can make valve block edge is easier to be fitted in end cover of filter
On.
Preferably, the check-valves of silicon rubber or nitrile rubber integral production is good with oil resistivity, the anti-morphotropism that deflects is good, makes
With the feature that the service life is long.
Detailed description of the invention
Fig. 1 is a kind of perspective view of the check-valve for filter of embodiment of the utility model；
Fig. 2 is the plan view of Fig. 1；
Fig. 3 is the A-A cross-sectional view of Fig. 2.
In figure, 1- valve body, the foundation ring 11-, 2- valve block, the outer surface 21-, 22- inner surface.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
A kind of structure of the check-valve for filter of embodiment of the utility model is as shown in Figure 1 to Figure 3, the filter of the present embodiment
Clear device check-valves including the annular valve body 1 for being mounted on inside filter and is connected to the peripheral annular valve block 2 of valve body 1,
The annular valve block 2 is bowl structure, and the outer surface 21 of annular valve block 2 and inner surface 22 are the arcwall face of outwardly convex, ring
Thickness is gradually reduced shape valve block 2 from inside to outside, and the top of the valve body 1 is integrally attached to the inside edge of annular valve block 2, valve body
1 internal diameter is equal with the internal diameter of valve block 2, the portion integral of valve body 1 is connected with foundation ring 11, and the internal diameter of foundation ring 11 is less than valve block
The outer diameter of internal diameter, foundation ring 11 is equal with 11 outer diameter of valve body, has between the inner ring and outer ring of foundation ring 11 and is gradually expanded from inside to outside
The conical surface.There is arc transition between the outer surface 21 and inner surface 22 of the outer edge of the annular valve block 2.The annular plate valve
There is arc transition at the inner ring of piece 2.The position that the lower surface 22 of the annular valve block 2 and valve body 1 combine has arc transition.
The foundation ring 11 and 1 inner ring junction of valve body have arc transition.The outer ring edge of the foundation ring 11 has arc transition.
In the present embodiment, the arc radius of annular 2 outer surface of valve block is 31 ± 0.1mm, annular 2 outer surface circular arc of valve block
The distance of distance of center circle annular valve shaft line is 14.8 ± 0.1mm, and the arc radius of annular 2 inner surface of valve block is 25.9 ± 0.1mm,
The distance of the distance of center circle annular valve shaft line of annular 2 inner surface circular arc of valve block is 17.1 ± 0.1mm.Annular 2 inner ring of valve block and outer
Difference in height between ring is 5.6mm.
In the present embodiment, 1 internal diameter of valve body is 31.9 ± 0.15mm, and the outer diameter of valve body 1 is 34.3 ± 0.15mm, and valve body 1 is thick
Degree is 4 ± 0.1mm, and 11 internal diameter of foundation ring is 24mm, and foundation ring 11 is with a thickness of 3mm.
The check-valves is formed by silicon rubber or nitrile rubber integral production, silicon rubber or nitrile rubber integral production only
Returning valve has the characteristics of oil resistivity is good, the anti-morphotropism that deflects is good, long service life, and the shore hardness of check-valves is 70 ± 3A, is made
Valve block is easy to be fitted on end cover of filter.
The valve block of the present embodiment check-valves is the bowl structure that surfaces externally and internally is arc surface, bowl-shape under oil pressure effect
The valve block internal gas of structure is extruded, and valve block is adsorbed on end cover of filter, so that fuel feed hole be blocked, prevents oil leak.Make
In, gradually the gas in thinning valve block easier can be extruded, and bowl-shape valve block connects after being squeezed and deformed with filter end face
Contacting surface product is big, so that valve block and the adsorption capacity of filter end face are big, therefore seals closely.In addition, valve in the utility model
Piece is gradually reduced from center to edge thickness, and simply by the presence of pressure difference, valve block edge can very easily be adsorbed on filter
On end cap, sealing is also able to achieve when oil pressure is smaller.The arc transition of annular valve block outer edge can make valve block edge easier
It is fitted on end cover of filter.
The filter that the check-valves of the present embodiment is very suitable to various oil pressure uses, and sealing effect is good, solves existing skill
The check-valves valve block sealing of art is not close, is easy the technical issues of sealing failure.
Claims (10)
1. check-valve for filter, including the annular for being mounted on the annular valve body inside filter with being connected to valve body periphery
Valve block, it is characterised in that: the annular valve block is bowl structure, and the outer surface of annular valve block and inner surface are outwardly convex
Arcwall face, thickness is gradually reduced annular valve block from inside to outside, and the top of the valve body is integrally attached to the inward flange of annular valve block
Place, the internal diameter of valve body and the internal diameter of valve block are equal, and the portion integral of valve body is connected with foundation ring, and the internal diameter of foundation ring is less than the interior of valve block
The outer diameter of diameter, foundation ring is equal with valve body outer diameter, has the conical surface being gradually expanded from inside to outside between the inner ring and outer ring of foundation ring.
2. check-valve for filter according to claim 1, it is characterised in that: outside the outer edge of the annular valve block
There is arc transition between surface and inner surface.
3. check-valve for filter according to claim 1, it is characterised in that: there is circle at the inner ring of the annular valve block
Arc transition.
4. check-valve for filter according to claim 1, it is characterised in that: the lower surface of the annular valve block and valve body
In conjunction with position have arc transition.
5. check-valve for filter according to claim 1, it is characterised in that: the foundation ring and valve body inner ring junction tool
There is arc transition.
6. check-valve for filter according to claim 1, it is characterised in that: the outer ring edge of the foundation ring has circle
Arc transition.
7. check-valve for filter according to claim 1, it is characterised in that: the circular arc half of the annular valve block outer surface
Diameter is 31mm, and the distance of the distance of center circle annular valve shaft line of annular valve block outer surface circular arc is 14.8mm, annular plate valve plate inner surface
Arc radius be 25.9mm, the distance of the distance of center circle annular valve shaft line of annular plate valve plate inner surface circular arc is 17.1mm.
8. check-valve for filter according to claim 1, it is characterised in that: the valve block internal diameter is 31.9mm, valve body
Outer diameter be 34.3mm, the foundation ring internal diameter be 24mm.
9. according to claim 1 to check-valve for filter described in 8 any one, it is characterised in that: the check-valves is by silicon
Rubber or nitrile rubber integral production form.
10. check-valve for filter according to claim 9, it is characterised in that: the shore hardness of the check-valves is 70
±3A。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812732.9U CN209245374U (en) | 2019-05-31 | 2019-05-31 | Check-valve for filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812732.9U CN209245374U (en) | 2019-05-31 | 2019-05-31 | Check-valve for filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209245374U true CN209245374U (en) | 2019-08-13 |
Family
ID=67537524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920812732.9U Expired - Fee Related CN209245374U (en) | 2019-05-31 | 2019-05-31 | Check-valve for filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209245374U (en) |
-
2019
- 2019-05-31 CN CN201920812732.9U patent/CN209245374U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190813 Termination date: 20200531 |