CN208670050U - Double density gasket - Google Patents
Double density gasket Download PDFInfo
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- CN208670050U CN208670050U CN201821198617.9U CN201821198617U CN208670050U CN 208670050 U CN208670050 U CN 208670050U CN 201821198617 U CN201821198617 U CN 201821198617U CN 208670050 U CN208670050 U CN 208670050U
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- annular groove
- upper layer
- gasket
- circle
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Abstract
The utility model provides double density gasket, including gasket body, and fire prevention gasket further includes the upper layer gasket for being pressed together on gasket body upper surface and the underlying shims that gasket body lower surface is arranged in；Upper layer gasket is equipped with the upper layer first annular groove and upper layer second annular groove being arranged along upper layer gasket circumferencial direction；Underlying shims are equipped with the lower layer's first annular groove and lower layer's second annular groove being arranged along underlying shims circumferencial direction, the distance in lower layer's first annular groove to the center of circle is less than lower layer's second annular groove to the distance in the center of circle, is equipped with spring energy-storage sealing ring in upper layer first annular groove and lower layer's first annular groove；Rubber o-ring is equipped in upper layer second annular groove and lower layer's second annular groove；The upper surface of rubber o-ring is higher by the surface of upper layer gasket and underlying shims, forms the sealing surface of protrusion.The utility model structure is simple, high pressure resistant, and for dual-seal circle as safety measures, sealing performance is fine, and can be used for the operating condition of high pressure medium.
Description
Technical field
The utility model relates to petroleum, chemical industry sealing element, in particular to double density gasket.
Background technique
In the Process Equipment of every field industrial department, gasket seal is occupied an important position, especially in petroleum, change
In the connecting pipe of industrial and commercial bank's industry, the gasket seal that needs that there is insulation performance toward contact.And modern industrial equipment is to gasket seal
Reliability more stringent requirements are proposed.The resin material intensity that currently used insulated enclosure gasket uses is not high, and usually
All there was only one of sealing ring, gasket is easy to damage in the very high pressure piping system of sealing requirements, and sealing effect is bad,
Easily cause safety and economic loss.
Utility model content
It is simple, high pressure resistant that the technical problem to be solved by the present invention is to provide a kind of structures, and there is dual-seal circle to make
For safety measures, sealing performance is fine, and can be used for the double density gasket of the operating condition of high pressure medium.
In order to achieve the above objectives, the technical solution of the utility model is as follows:
Double density gasket, including gasket body, the double density gasket further include:
The upper layer gasket for being pressed together on gasket body upper surface and the underlying shims that gasket body lower surface is set；
Upper layer gasket is equipped with the second annular of upper layer first annular groove and upper layer being arranged along upper layer gasket circumferencial direction
The distance of groove, upper layer first annular groove to the center of circle is less than distance of the upper layer second annular groove to the center of circle, the first ring of upper layer
Connected in star is vertical plane close to the side in the center of circle, and side of the upper layer first annular groove far from the center of circle is inclined-plane；The second ring of upper layer
Connected in star is vertical plane close to the side in the center of circle, and side of the upper layer second annular groove far from the center of circle is inclined-plane；
Underlying shims are equipped with the second annular of lower layer's first annular groove and lower layer being arranged along underlying shims circumferencial direction
The distance of groove, lower layer's first annular groove to the center of circle is less than distance of lower layer's second annular groove to the center of circle, the first ring of lower layer
Connected in star is vertical plane close to the side in the center of circle, and side of lower layer's first annular groove far from the center of circle is inclined-plane；The second ring of lower layer
Connected in star is vertical plane close to the side in the center of circle, and side of lower layer's second annular groove far from the center of circle is inclined-plane；
Spring energy-storage sealing ring, spring energy-storage sealing are equipped in upper layer first annular groove and lower layer's first annular groove
The upper surface of circle is higher by the surface of upper layer gasket and underlying shims, forms the sealing surface of protrusion；
Rubber o-ring, the upper surface of rubber o-ring are equipped in upper layer second annular groove and lower layer's second annular groove
It is higher by the surface of upper layer gasket and underlying shims, forms the sealing surface of protrusion
In one embodiment of the utility model, gasket body is made of stainless steel material.
In one embodiment of the utility model, upper layer gasket and underlying shims are by epoxy glass-fibre reinforced resin material
It is made.
In one embodiment of the utility model, spring energy-storage sealing ring is made of polytetrafluoroethylene material.
Through the above technical solutions, the beneficial effects of the utility model are:
The utility model structure is simple, high pressure resistant, and for dual-seal circle as safety measures, sealing performance is fine, and can use
In the operating condition of high pressure medium.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the cross section stereo schematic diagram of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the cross-sectional view of the utility model；
10, gasket body 20, upper layer gasket 21, upper layer first annular groove 22, upper layer second annular groove 30, under
Layer gasket 31, lower layer's first annular groove 32, lower layer's second annular groove 40, vertical plane 50, inclined-plane 60, spring energy-storage
Sealing ring 70, sealing surface 80, rubber o-ring 90, gap.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Referring to shown in Fig. 1 to Fig. 3, the utility model is prevented fires gasket, including gasket body 10, gasket body by it is high-intensitive not
Rust Steel material is made；Fire prevention gasket further includes being pressed together on the upper layer gasket 20 of 10 upper surface of gasket body and being arranged in gasket master
The underlying shims 30 of body lower surface, upper layer gasket 10 and underlying shims 30 are by the good epoxy glass-fibre reinforced resin of insulation performance
Material is made, and the two sides of gasket body 10 presses upper and lower layer gasket, will not fall off gasket body, good exhausted providing
It ensure that the intensity of gasket body while edge performance.
Upper layer gasket 20 is equipped with the upper layer first annular groove 21 being arranged along upper layer gasket circumferencial direction and upper layer second
The distance of annular groove 22, upper layer first annular groove to the center of circle is less than distance of the upper layer second annular groove to the center of circle, upper layer
First annular groove is vertical plane 40 close to the side in the center of circle, and side of the upper layer first annular groove far from the center of circle is inclined-plane 50；
Underlying shims 30 are equipped with the lower layer's first annular groove 31 and lower layer's second annular groove being arranged along underlying shims circumferencial direction
32, the distance of lower layer's first annular groove to the center of circle is less than lower layer's second annular groove to the distance in the center of circle, and lower layer is first annular
Groove is vertical plane 40 close to the side in the center of circle, and side of lower layer's first annular groove far from the center of circle is inclined-plane 50；Upper layer first
Spring energy-storage sealing ring 60 is equipped in annular groove and lower layer's first annular groove, spring energy-storage sealing ring is by polytetrafluoroethylene (PTFE)
Material is made, and the upper surface of spring energy-storage sealing ring is higher by the surface of upper layer gasket and underlying shims, forms the sealing of protrusion
Face 70；Rubber o-ring 80, the upper table of rubber o-ring 80 are equipped in upper layer second annular groove and lower layer's second annular groove
Face is higher by the surface of upper layer gasket and underlying shims, forms the sealing surface 70 of protrusion.
Upper layer first annular groove, upper layer second annular groove, lower layer's first annular groove, in lower layer's second annular groove
Spring energy-storage sealing ring can be installed simultaneously, rubber o-ring can also be installed simultaneously.
Angle between the utility model inclined-plane 50 and horizontal plane is 70 °, upper layer first annular groove 21, the second ring of upper layer
Connected in star, lower layer's first annular groove 31, the ratio of the depth of lower layer's second annular groove and width are 3:4, which can be with
Prevent spring energy-storage sealing ring 60 and rubber o-ring 80 from falling off；Upper layer first annular groove 21, upper layer second annular groove, under
Layer first annular groove 31, the structure of lower layer's second annular groove are all the same, upper layer first annular groove 21, the second annular of upper layer
Groove 22, lower layer's first annular groove 31, the ratio of the depth of lower layer's second annular groove 32 and width are 4:5, which mentions
The high integral strength of fire prevention gasket, and it is easy to produce.
There are gap 90 between spring energy-storage sealing ring 60, rubber o-ring 80 and vertical plane 40, the size in gap is
1.2mm, when spring energy-storage sealing ring 60, rubber o-ring 80 are pressed into upper layer first annular groove 21, the second annular of upper layer by flange
Groove 22, lower layer's first annular groove 31, in lower layer's second annular groove 32 when, spring energy-storage sealing ring 60, rubber o-ring 80
The part being extruded can obtain space compensation at the gap 90, therefore will not generate extrusion and destroy, and improve service life.
When the utility model is installed on flange, flange sealing surface is simultaneously by spring energy-storage sealing ring 60 and rubber o-ring
80 convex portion is pressed into upper and lower layer first annular groove and upper and lower layer second annular groove, in spring energy-storage sealing ring 60
The spring in portion generates elastic force and withstands spring energy-storage sealing ring, it is made to form good leakproofness between flange sealing surface；RUBBER O type
Circle 60 also forms good leakproofness since itself has good resilience performance between flange sealing surface.In this way, being padded on upper layer
Two seals are formd between piece 20 and underlying shims 30 and flange sealing surface, first of sealing is that spring energy-storage sealing ring 60 loses
Effect generates leakage, and second sealing at this time is that rubber o-ring 80 still ensures that good sealing effect.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. double density gasket, including gasket body, which is characterized in that the double density gasket further include:
The upper layer gasket for being pressed together on gasket body upper surface and the underlying shims that gasket body lower surface is set；
Upper layer gasket is equipped with the upper layer first annular groove and upper layer second annular groove being arranged along upper layer gasket circumferencial direction,
The distance in upper layer first annular groove to the center of circle is less than distance of the upper layer second annular groove to the center of circle, upper layer first annular groove
Side close to the center of circle is vertical plane, and side of the upper layer first annular groove far from the center of circle is inclined-plane；Upper layer second annular groove
Side close to the center of circle is vertical plane, and side of the upper layer second annular groove far from the center of circle is inclined-plane；
Underlying shims are equipped with the lower layer's first annular groove and lower layer's second annular groove being arranged along underlying shims circumferencial direction,
The distance in lower layer's first annular groove to the center of circle is less than distance of lower layer's second annular groove to the center of circle, lower layer's first annular groove
Side close to the center of circle is vertical plane, and side of lower layer's first annular groove far from the center of circle is inclined-plane；Lower layer's second annular groove
Side close to the center of circle is vertical plane, and side of lower layer's second annular groove far from the center of circle is inclined-plane；
Spring energy-storage sealing ring is equipped in upper layer first annular groove and lower layer's first annular groove, spring energy-storage sealing ring
Upper surface is higher by the surface of upper layer gasket and underlying shims, forms the sealing surface of protrusion；
Rubber o-ring is equipped in upper layer second annular groove and lower layer's second annular groove, the upper surface of rubber o-ring is high
The surface of upper layer gasket and underlying shims out forms the sealing surface of protrusion.
2. double density gasket according to claim 1, which is characterized in that gasket body is made of stainless steel material.
3. double density gasket according to claim 1, which is characterized in that upper layer gasket and underlying shims are by epoxy glass
Reinforced resin material is made.
4. double density gasket according to claim 1, which is characterized in that spring energy-storage sealing ring is by polytetrafluoroethylene material
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821198617.9U CN208670050U (en) | 2018-07-26 | 2018-07-26 | Double density gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821198617.9U CN208670050U (en) | 2018-07-26 | 2018-07-26 | Double density gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670050U true CN208670050U (en) | 2019-03-29 |
Family
ID=65831821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821198617.9U Active CN208670050U (en) | 2018-07-26 | 2018-07-26 | Double density gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670050U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196885A (en) * | 2020-10-09 | 2021-01-08 | 嘉兴钰丰汽车零部件有限公司 | Metal gasket convenient to dismouting |
| WO2021088413A1 (en) * | 2019-11-05 | 2021-05-14 | 台州艾特密封科技股份有限公司 | High-adsorption reinforced silicone rubber gasket |
-
2018
- 2018-07-26 CN CN201821198617.9U patent/CN208670050U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088413A1 (en) * | 2019-11-05 | 2021-05-14 | 台州艾特密封科技股份有限公司 | High-adsorption reinforced silicone rubber gasket |
| CN112196885A (en) * | 2020-10-09 | 2021-01-08 | 嘉兴钰丰汽车零部件有限公司 | Metal gasket convenient to dismouting |
| CN112196885B (en) * | 2020-10-09 | 2022-06-14 | 嘉兴钰丰汽车零部件股份有限公司 | Metal gasket convenient to dismouting |
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