CN208919511U - A kind of rubber gasket of long life - Google Patents
A kind of rubber gasket of long life Download PDFInfo
- Publication number
- CN208919511U CN208919511U CN201821622752.1U CN201821622752U CN208919511U CN 208919511 U CN208919511 U CN 208919511U CN 201821622752 U CN201821622752 U CN 201821622752U CN 208919511 U CN208919511 U CN 208919511U
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- CN
- China
- Prior art keywords
- rubber
- pad body
- seal pad
- rubber seal
- gasket
- 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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Abstract
The utility model discloses the rubber gaskets of long life a kind of, belong to gasket technical field.Rubber seal pad body (1) including annular；Rubber seal pad body (1) inner ring, which is enclosed with tetrafluoroethene layer (2), to be made to form the annular convex platform with flange cooperation on the inside of its tow sides, and tow sides and tetrafluoroethene layer (2) joint of the rubber seal pad body (1) are equipped with concentric corrugated teeth (3).The gasket wraps up one layer of tetrafluoroethene layer in the inside of conventional rubber gasket, and tetrafluoroethene layer can reduce high temperature, high pressure and other corrosive materials to the aging of rubber and can reduce its deformation；By the setting of corrugated teeth, it can not only increase in conjunction with effect, can also increase the roughness of tetrafluoroethene layer, while also make force dispersion and uniformly to improve sealing effect.The rubber gasket is especially suitable for the use of convex flange, relative to the General Purpose Rubber gasket of same specification, 1.6 times of life longer or more.
Description
Technical field
The utility model belongs to gasket technical field, in particular to a kind of rubber gasket of long life, especially
It is related to a kind of suitable for face-flange and convex flange and rubber gasket with long service life.
Background technique
Rubber sheet gasketing is a kind of gasket for sealing.The major product of rubber gasket has: silicagel pad, butyronitrile rubber
Rubber mat, fluorubber pad and other rubber pads etc..Rubber gasket has oil resistant, acid and alkali-resistance, resistance to fever and chills and the performances such as ageing-resistant, extensively
It is general to be applied to the industries such as automobile, electronics, chemical industry, antistatic, fire-retardant and food.
Common rubber gasket is annular gasket made of rubber, but due to rubber itself, for a long time or
Easily occur larger deformation after the uses such as high pressure or high temperature and can not spring back, itself occur damaged or gap occurs with sealing surface,
Cause to need replacing after a period of use, especially service life is shorter in the presence of a harsh environment.
Summary of the invention
To solve the above-mentioned problems, the utility model embodiment provides the rubber gasket of long life a kind of,
There is longer service life relative to General Purpose Rubber gasket.The technical solution is as follows:
The utility model embodiment provides the rubber gasket of long life a kind of, the rubber gasket including annular
Ontology 1；1 inner ring of rubber seal pad body, which is enclosed with tetrafluoroethene layer 2, to be made to be formed on the inside of its tow sides and flange cooperation
Annular convex platform, the tow sides of the rubber seal pad body 1 and 2 joint of tetrafluoroethene layer are equipped with concentric corrugated teeth 3.
Wherein, the rubber seal pad body 1 in the utility model embodiment with a thickness of 2.5-4.0mm, the tetrafluoro second
Alkene layer 2 with a thickness of 0.3-0.8mm.
Specifically, the rubber seal pad body 1 in the utility model embodiment with a thickness of 3.0mm, the tetrafluoroethene
Layer 2 with a thickness of 0.5mm.
Wherein, the tetrafluoroethene layer 2 on the rubber seal pad body 1 in the utility model embodiment is constituted outwardly open
C-shaped configuration.
Wherein, the outer rim of the annular convex platform in the utility model embodiment is round and it is same with rubber seal pad body 1
The heart, the outer diameter of the rubber seal pad body 1 are greater than the diameter of the seal groove of convex flange, and the outer diameter of the annular convex platform is less than
The diameter of the seal groove of convex flange.
Further, rubber seal pad body 1 in the utility model embodiment annular convex platform front and back it is outer
Diameter is equal.
Technical solution provided by the embodiment of the utility model has the benefit that the utility model embodiment provides
A kind of rubber gasket of long life, the gasket wrap up one layer of tetrafluoroethene in the inside of conventional rubber gasket
Layer, tetrafluoroethene layer can reduce high temperature, high pressure and other corrosive materials to the aging of rubber and can reduce its deformation；Pass through wave
The setting of line tooth can not only increase in conjunction with effect, can also increase the roughness of tetrafluoroethene layer, at the same also make force dispersion and
Uniformly to improve sealing effect.The rubber gasket is especially suitable for convex flange, relative to the General Purpose Rubber gasket of same specification,
1.6 times of its life longer or more.
Detailed description of the invention
Fig. 1 is the positive structure schematic of the rubber gasket of long life provided by the embodiment of the utility model；
Fig. 2 is the cross-sectional view of the rubber gasket of long life provided by the embodiment of the utility model.
In figure: 1 rubber seal pad body, 2 tetrafluoroethene layers, 3 corrugated teeths.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
Referring to Fig. 1 and 2, the utility model embodiment provides the rubber gasket of long life a kind of, including annular
Rubber seal pad body 1, rubber seal pad body 1 be generally annular shape comprising annular (sealing surface) front and back.
Aforementioned structure and existing rubber gasket are essentially identical, the difference is that: in the rubber seal pad body 1 in the present embodiment
Circle package (on the inside of the inner edge of package rubber seal pad body 1, positive inside and reverse side) has tetrafluoroethene layer 2 to make its tow sides
Inside forms the annular convex platform with flange cooperation, then the front and back sides of the rubber gasket of the present embodiment are depression of order from the inside to the outside
Ring ladder structure.The tow sides of rubber seal pad body 1 are equipped with concentric corrugated teeth 3(with 2 joint of tetrafluoroethene layer can
It is integrally formed when being produced by rubber seal pad body 1) so that annular convex platform is formed asperities, corrugated teeth 3 can not only increase combination
Effect, can also increasing the roughness of tetrafluoroethene layer 2, (under normal conditions, tetrafluoroethene surface is smooth cannot be used for convex surface method
It is blue), while also making force dispersion and uniformly to improve sealing effect.
Further, in this embodiment rubber seal pad body 1 tied with tetrafluoroethene layer 2 by thermal bonding process
It closes, not only avoids the introducing of glue, annular convex platform is also made to form asperities.When processing, using rubber seal pad body 1 and with
The tetrafluoroethene pipe of 1 internal diameter of rubber seal pad body cooperation is plugged in rubber gasket in the middle part of tetrafluoroethene pipe as raw material
In ontology 1, so that tetrafluoroethene pipe both ends is tiled respectively by thermal bonding process and be bonded in rubber seal pad body 1 front with
Reverse side forms annular convex platform.
Wherein, the rubber seal pad body 1 in the utility model embodiment with a thickness of 2.5-4.0mm, tetrafluoroethene layer 2
With a thickness of 0.3-0.8mm, the tooth height of corrugated teeth 3 is less than 0.5mm.
Specifically, the rubber seal pad body 1 in the utility model embodiment with a thickness of 3.0mm, tetrafluoroethene layer 2
With a thickness of 0.5mm, a height of 0.3mm of the tooth of corrugated teeth 3.
Specifically, the material of the rubber seal pad body 1 in the utility model embodiment can be silicon rubber, the fine rubber of fourth
Glue, fluorubber, natural rubber, neoprene, ethylene propylene diene rubber or acrylic rubber etc., preferably nitrile rubber.
Wherein, referring to fig. 2, the tetrafluoroethene layer 2 on the rubber seal pad body 1 in the utility model embodiment constitute to
The C-shaped configuration of outward opening.
Wherein, the outer rim of the annular convex platform in the utility model embodiment is round and it is same with rubber seal pad body 1
The heart, the outer diameter of rubber seal pad body 1 are greater than the diameter of the seal groove of convex flange, and the outer diameter of annular convex platform is less than convex flange
Seal groove diameter.Specifically, the outer diameter of rubber seal pad body 1 is designed according to actual needs, outside annular convex platform
Diameter 3-8mm usually small compared with the diameter of seal groove.For face-flange, no particular/special requirement
Further, rubber seal pad body 1 in the utility model embodiment annular convex platform front and back it is outer
Diameter is equal in order to installing.
Through testing, for the convex flange of DN175 pipeline, at 2.45MPa and 325-340 DEG C of pressure, circulation medium is
The concentrated sulfuric acid, the service life for the rubber gasket that this patent provides are 2.1-2.4 times of traditional rubber gasket.For other pipes
Diameter and under other lower pressures, lower temperature or/and mild ambient condition, the rubber gasket that this patent provides use the longevity
Life is at least 1.6 times of traditional rubber gasket.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of rubber gasket of long life, the rubber seal pad body (1) including annular；It is characterized in that, described
Rubber seal pad body (1) inner ring, which is enclosed with tetrafluoroethene layer (2), to be made to form the annular with flange cooperation on the inside of its tow sides
Boss, tow sides and tetrafluoroethene layer (2) joint of the rubber seal pad body (1) are equipped with concentric corrugated teeth (3).
2. the rubber gasket of long life according to claim 1, which is characterized in that the rubber seal pad body
(1) with a thickness of 2.5-4.0mm, the tetrafluoroethene layer (2) with a thickness of 0.3-0.8mm.
3. the rubber gasket of long life according to claim 1, which is characterized in that the rubber seal pad body
(1) with a thickness of 3.0mm, the tetrafluoroethene layer (2) with a thickness of 0.5mm.
4. the rubber gasket of long life according to claim 1, which is characterized in that the rubber seal pad body
(1) the tetrafluoroethene layer (2) on constitutes outwardly open C-shaped configuration.
5. the rubber gasket of long life according to claim 1, which is characterized in that the outer rim of the annular convex platform
For round and it is concentric with rubber seal pad body (1), the outer diameter of the rubber seal pad body (1) is greater than the close of convex flange
The diameter of sealing groove, the outer diameter of the annular convex platform are less than the diameter of the seal groove of convex flange.
6. the rubber gasket of long life according to claim 5, which is characterized in that the rubber seal pad body
(1) outer diameter of annular convex platform front and back is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622752.1U CN208919511U (en) | 2018-10-08 | 2018-10-08 | A kind of rubber gasket of long life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622752.1U CN208919511U (en) | 2018-10-08 | 2018-10-08 | A kind of rubber gasket of long life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919511U true CN208919511U (en) | 2019-05-31 |
Family
ID=66708296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821622752.1U Expired - Fee Related CN208919511U (en) | 2018-10-08 | 2018-10-08 | A kind of rubber gasket of long life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919511U (en) |
-
2018
- 2018-10-08 CN CN201821622752.1U patent/CN208919511U/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: 20190531 Termination date: 20211008 |