CN208519170U - A kind of seal washer of banjo union - Google Patents
A kind of seal washer of banjo union Download PDFInfo
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- CN208519170U CN208519170U CN201820006764.5U CN201820006764U CN208519170U CN 208519170 U CN208519170 U CN 208519170U CN 201820006764 U CN201820006764 U CN 201820006764U CN 208519170 U CN208519170 U CN 208519170U
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- washer
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- rubber washer
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Abstract
The utility model discloses a kind of seal washers of banjo union, belong to the sealing structure of pipe-line system, including metal washer and rubber washer, the internal diameter of the metal washer is identical as the outer diameter of the rubber washer, the rubber washer is bonded on the inside of the metal washer, the thickness of the metal washer is equal with the thickness of the rubber washer outer ring, and the thickness of the rubber washer has from outer ring to inner ring from the change procedure for increasing to reduction.The utility model can eliminate the gap between two joint surfaces, prevent joint surface that leakage occurs and even leak, reduce pretightning force.
Description
Technical field
The utility model relates to a kind of sealing structure of pipe-line system, especially a kind of seal washer of banjo union.
Background technique
The leakage of pipeline, leakage be mechanical equipment frequent occurrence or one of existing potential faults.And these pipelines are let out
Leakage, leakage occur mainly in the various interfaces of pipeline.It is most basic close that interface, which is carried out directly sealing, in pipe-line system
Seal structure, and a sealing surface is certainly existed between the two sides sealed.Therefore the reason of leakage, leakage are caused in actual production life
It mainly includes two aspects that first is that since machining is as a result, the surface of engineering goods certainly exists various defects and shape and ruler
Therefore very little deviation inevitably results from gap in machine components connection place；Second is that there are pressure difference, work for sealing two sides
Leakage or slowly leakage will occur by gap for medium.
Existing problems are sealed for above-mentioned current pipe-line system split shed, it is necessary to provide a kind of novel sealing
Structure or device not only can reduce various defects and shape and dimensional discrepancy institute band existing for two joint surfaces for needing to seal
The influence come, can also reduce the pretightning force between two joint surfaces of sealing.
Utility model content
The utility model technical issues that need to address are to provide a kind of seal washer of banjo union, eliminate two and connect
Gap between conjunction face prevents joint surface that leakage occurs and even leaks, reduces pretightning force.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of seal washer of banjo union, including metal washer and rubber washer, the internal diameter of the metal washer with
The outer diameter of the rubber washer is identical, and the rubber washer is bonded on the inside of the metal washer, the thickness of the metal washer
Equal with the thickness of the rubber washer outer ring, the thickness of the rubber washer has from outer ring to inner ring from the change for increasing to reduction
Change process.
Technical solutions of the utility model further improvement lies in that: the outer diameter of the metal washer is than the metal washer
Internal diameter is 3 millimeters to 4 millimeters big.
Technical solutions of the utility model further improvement lies in that: the outer diameter of the rubber washer is than the rubber washer
Internal diameter is 4 millimeters to 6 millimeters big.
Technical solutions of the utility model further improvement lies in that: the vulcanization of the outer ring periphery of the rubber washer is bonded in
The inner ring periphery of the metal washer.
Technical solutions of the utility model further improvement lies in that: the metal washer with a thickness of 1.8 millimeters to 2.2 milli
Rice.
Technical solutions of the utility model further improvement lies in that: the thickness maximum of the rubber washer is than the metal
The thickness of washer is 0.4 millimeter to 3.6 millimeters big.
Technical solutions of the utility model further improvement lies in that: the thickness of the rubber washer from outer ring to inner ring, first
Maximum is incrementally increased, section is the isosceles trapezoidal structure of symmetrical protrusion, is directly reduced to the thickness with metal washer afterwards
Equal sizes are simultaneously kept, and section becomes rectangular configuration.
Technical solutions of the utility model further improvement lies in that: the thickness of the rubber washer from outer ring to inner ring, first
After stablizing the first pre-determined distance, the tow sides of the rubber washer reduce the rubber washer along predetermined angle inwardly
Then thickness increases the thickness of the rubber washer to the angle opposite with the predetermined angle to the first preset thickness
Two preset thickness, then the second pre-determined distance is stablized with second preset thickness, institute is still finally reduced with the predetermined angle
The thickness of rubber washer is stated to the first preset thickness.
Technical solutions of the utility model further improvement lies in that: second preset thickness is greater than the rubber washer
Initial thickness；Second pre-determined distance is greater than first pre-determined distance；The predetermined angle is to arrive with 45 ° of horizontal sextant angle
70°。
Technical solutions of the utility model further improvement lies in that: the metal washer is made of No. 10 steel, the rubber
Washer is made of nitrile rubber, butadiene-styrene rubber or fluorubber.
By adopting the above-described technical solution, the technological progress that the utility model obtains is:
Metal washer and rubber washer are used in combination, rubber washer is enclosed in the inner adhesion one of metal washer, utilizes
The material is soft for rubber washer itself, and coating performance is good, and sealing effect can be given full play under lesser pretightning force；And this skill
The thickness of rubber washer has the compression ratio that rubber is utilized from the change procedure for increasing to reduction in art scheme, and passes through periphery
Metal washer protection, avoid rubber generate it is radial shake or permanent deformation, reach desirable seal under suitable pretightning force
Effect.
The difference of the internal-and external diameter of rubber washer is greater than the difference of the internal-and external diameter of metal washer, more takes full advantage of rubber washer itself
Leakproofness, rubber is to two joint surfaces sealing of needs, and the roughness requirements such as flange face are much lower, this is because rubber sheet
Body is easily deformed, and can be blocked such as the defects of processing knife mark, to prevent from leaking.
It is bonded by vulcanization, metal washer and rubber washer secure bond, prevents from, by rubber extruding, causing when compressing
Permanent deformation occurs for rubber, influences sealing effect.
Suitable metal washer thickness is configured, when rubber washer deformation reaches maximum, the metal gasket of rubber washer periphery
Circle starts to contact with joint surface；Because metal washer intensity is higher, when preventing pretightning force excessive, rubber washer is damaged.
The thickness maximum of rubber washer is bigger than the thickness of metal washer, takes full advantage of the compression ratio of rubber, makes rubber
Joint surface is sufficient filling with and blocked when compressive deformation certainly exists geomery deviation between various defects, lines and two junction
Generated gap achievees the effect that sufficiently sealed.
Rubber washer section has the isosceles trapezoidal structure of protrusion, or has first to reduce with a predetermined angle and be further added by thickness
Structure, the extruding force and the shearing extruding force of rubber washer axial direction being decomposed between rubber washer and metal washer
Power is more uniformly stressed rubber washer itself, will not generate largely deformation, reduces the risk of rubber washer failure, mentions
High connection reliability and service life.
Rubber washer is become larger structure using the thickness that is not restricted to one pattern, reduces the production requirement to rubber washer, be easy to plus
Work, product qualification rate are high.
Metal washer is made of No. 10 steel, and rubber washer is made of nitrile rubber, butadiene-styrene rubber or fluorubber, is reduced
Single soft washer is used, such as the cost of copper gasket；Meanwhile the pretightning force between two joint surfaces is reduced, it increases
Leakproofness.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of an embodiment of the present invention；
Fig. 2 is the diagrammatic cross-section of another embodiment of the utility model；
Fig. 3 is the section partial enlargement diagram of another embodiment of the utility model；
Wherein, 1, metal washer, 2, rubber washer.
Specific embodiment
The utility model is described in further details below with reference to embodiment:
As shown in Figure 1, a kind of seal washer for banjo union that an embodiment of the present invention provides, including metal gasket
Circle 1 and rubber washer 2, the internal diameter of the metal washer 1 is identical as the outer diameter of the rubber washer 2, and the rubber washer 2 bonds
In 1 inside of metal washer, the thickness of the metal washer 1 is equal with the thickness of 2 outer ring of rubber washer, the rubber
The thickness of washer 2 first incrementally increases maximum from outer ring to inner ring, and section is the isosceles trapezoidal structure of symmetrical protrusion, rear straight
It connects and is reduced to the thickness equal sizes with metal washer 1 and keeps, section becomes rectangular configuration.
Specifically, the outer diameter of the metal washer 1 is 22 millimeters, the internal diameter of the metal washer 1 is 18 millimeters, the rubber
The outer diameter of rubber gasket 2 is also 18 millimeters；The thickness of the metal washer 1 is equal with the thickness of 2 outer ring of rubber washer, is
2 millimeters；The thickness of the rubber washer 2 first incrementally increases maximum from outer ring to inner ring, with a thickness of 5.6 millimeters, this section of institute
The section for stating rubber washer 2 is the isosceles trapezoidal structure of symmetrical protrusion, this diameter for putting the rubber washer 2 is 16 millimeters；So
The thickness of the rubber washer 2 is directly reduced to thickness equal sizes i.e. 2 millimeter with the metal washer 1 afterwards, and remains to
The inner ring of the rubber washer 2；The internal diameter of the rubber washer 2 is 14 millimeters, and the section of this section of rubber washer 2 becomes 2
× 1 rectangular configuration；The thickness maximum of the rubber washer 2 is 3.6 millimeters bigger than the thickness of the metal washer 1.
The outer diameter of the metal washer 1, the internal diameter of the metal washer 1 and the outer diameter of the rubber washer 2
Size can be according to the error for needing to change size, while allowing to have -0.2 millimeter of sealing attaching；The thickness of the rubber washer 2
The diameter of degree maximum can also have -0.2 millimeter of error；But the internal diameter of the rubber washer 2 should prepare to cooperate with it
The outer diameter of the hollow bolt of attaching is identical, is in the present embodiment 14 millimeters of standard, to prevent the rubber washer 2 from diameter occur
To shaking, sealing effect is influenced.
As shown in Fig. 2, a kind of rubber washer 2 that another embodiment of the utility model provides, the thickness of the rubber washer 2
From outer ring to inner ring, after first stablizing the first pre-determined distance, the tow sides of the rubber washer 2 subtract along predetermined angle inwardly
The thickness of the small rubber washer 2 is to the first preset thickness, then described in the angle increase opposite with the predetermined angle
The thickness of rubber washer 2 stablizes the second pre-determined distance to the second preset thickness, then with second preset thickness, finally still with
The predetermined angle reduces the thickness of the rubber washer 2 to the first preset thickness.
Second preset thickness is greater than the initial thickness of the rubber washer 2；Second pre-determined distance is greater than described
First pre-determined distance；The predetermined angle be and 45 ° to 70 ° of horizontal sextant angle.
Specifically, as shown in figure 3, the rubber washer 2 for the section partial enlargement that another embodiment of the utility model provides, institute
The original depth for stating rubber washer 2 is 2 millimeters, and from outer ring to inner ring, after first stablizing 0.25 millimeter, the rubber washer 2 is just
Anti- two sides is inwardly along the thickness with 60 ° of the horizontal sextant angle reduction rubber washers 2 to 1.4 millimeters, then with outward
Stablize 1 millimeter to 2.6 millimeters, then with 2.6 millimeters of thickness along the thickness for increasing the rubber washer 2 with 60 ° of horizontal sextant angle, most
The tow sides of the rubber washer 2 are inwardly along the thickness with 60 ° of the horizontal sextant angle reduction rubber washers 2 to 1.4 afterwards
Millimeter；The thickness maximum of the rubber washer 2 is 0.6 millimeter bigger than the thickness of the metal washer 1.
The original depth of the rubber washer 2 allows ± 0.2 millimeter of error, and the range of first pre-determined distance is
0.25 millimeter to 1 millimeter, the range of second pre-determined distance is 1 millimeter to 1.75 millimeters, the model of first preset thickness
Enclosing is 1 millimeter to 1.6 millimeters, and the range of second preset thickness is 2.4 millimeters to 3 millimeters.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among still in the protection scope of the utility model.
Claims (7)
1. a kind of seal washer of banjo union, it is characterised in that: including metal washer (1) and rubber washer (2), the gold
The internal diameter for belonging to washer (1) is identical as the outer diameter of the rubber washer (2), and the rubber washer (2) is bonded in the metal washer
(1) inside, the thickness of the metal washer (1) is equal with the thickness of the rubber washer (2) outer ring, the rubber washer (2)
Thickness have from outer ring to inner ring from the change procedure for increasing to reduction；
The thickness of the rubber washer (2) first incrementally increases maximum from outer ring to inner ring, section be symmetrical protrusion etc.
Waist trapezium structure is directly reduced to the thickness equal sizes with metal washer (1) afterwards and keeps, and section becomes rectangular configuration；
The thickness of the rubber washer (2) is from outer ring to inner ring, after first stablizing the first pre-determined distance, the rubber washer (2)
Tow sides reduce the thickness of the rubber washer (2) to the first preset thickness along predetermined angle inwardly, then with
It is pre- to the second preset thickness, then with described second that the opposite angle of the predetermined angle increases the thickness of the rubber washer (2)
If thickness stablizes the second pre-determined distance, finally still with the thickness of the predetermined angle reduction rubber washer (2) to first
Preset thickness；
Second preset thickness is greater than the initial thickness of the rubber washer (2)；Second pre-determined distance is greater than described the
One pre-determined distance；The predetermined angle be and 45 ° to 70 ° of horizontal sextant angle.
2. a kind of seal washer of banjo union according to claim 1, it is characterised in that: the metal washer (1)
Outer diameter it is 3 millimeters to 4 millimeters bigger than the internal diameter of the metal washer (1).
3. a kind of seal washer of banjo union according to claim 1, it is characterised in that: the rubber washer (2)
Outer diameter it is 4 millimeters to 6 millimeters bigger than the internal diameter of the rubber washer (2).
4. a kind of seal washer of banjo union according to claim 1, it is characterised in that: the rubber washer (2)
The vulcanization of outer ring periphery be bonded in the inner ring periphery of the metal washer (1).
5. a kind of seal washer of banjo union according to claim 1, it is characterised in that: the metal washer (1)
With a thickness of 1.8 millimeters to 2.2 millimeters.
6. a kind of seal washer of banjo union according to claim 1, it is characterised in that: the rubber washer (2)
Thickness maximum it is 0.4 millimeter to 3.6 millimeters bigger than the thickness of the metal washer (1).
7. a kind of seal washer of banjo union according to claim 1, it is characterised in that: the metal washer (1)
It is made of No. 10 steel, the rubber washer (2) is made of nitrile rubber, butadiene-styrene rubber or fluorubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006764.5U CN208519170U (en) | 2018-01-03 | 2018-01-03 | A kind of seal washer of banjo union |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006764.5U CN208519170U (en) | 2018-01-03 | 2018-01-03 | A kind of seal washer of banjo union |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208519170U true CN208519170U (en) | 2019-02-19 |
Family
ID=65326756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820006764.5U Active CN208519170U (en) | 2018-01-03 | 2018-01-03 | A kind of seal washer of banjo union |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208519170U (en) |
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2018
- 2018-01-03 CN CN201820006764.5U patent/CN208519170U/en active Active
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