CN203614738U - Sealing gasket - Google Patents
Sealing gasket Download PDFInfo
- Publication number
- CN203614738U CN203614738U CN201320784711.3U CN201320784711U CN203614738U CN 203614738 U CN203614738 U CN 203614738U CN 201320784711 U CN201320784711 U CN 201320784711U CN 203614738 U CN203614738 U CN 203614738U
- Authority
- CN
- China
- Prior art keywords
- shim body
- district
- contact
- gasket 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
Links
- 238000007789 sealing Methods 0.000 title abstract description 12
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000010008 shearing Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 239000010721 machine oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a sealing gasket comprising a gasket body matched with a to-be-sealed surface in shape, wherein a plurality of bolt holes are formed in the gasket body in the circumferential direction, a contact surface pressure increase region is located in the middle part between two adjacent bolt holes of the gasket body, and the contact surface pressure increase region is formed by reducing the width of the gasket body in the corresponding position. As the contact area of the gasket body in the middle part between the bolt holes is reduced, the unit area pressure on the gasket body is increased under the same axial force of a bolt; in other words, the contact surface pressure of the gasket is increased; as long as the axial force is increased, the formation of a certain seal zone between the gasket and the surface of a flange is ensured and the sealing property can be guaranteed.
Description
Technical field
The utility model relates to a kind of gasket seal, particularly relates to a kind of nonmetal gasket seal.
Background technique
Due to the spatial constraints of diesel engine sealing station, cause bolt arrangement often can not meet seal request, there is oil leakage fault as example in the pad place of observing cover plate take a kind of diesel engine, find by test, the sealing means of this position, place mainly relies on 8 bolts of cover plate to produce sealing load, its main sealing load is positioned at around bolt, but larger in lower half portion machine oil storage volume of cover plate pad, and two bolt intermediate portion contact stress are less.In diesel engine using process, due to the impact of the factors such as vibration, less sealing surface is pressed, and makes pad cannot meet seal request, therefore very easily occurs Leakage.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of gasket seal.
For solving the problems of the technologies described above, the utility model comprises the shim body adapting with to be sealed shape, described shim body is circumferentially with multiple bolts hole along it, it is characterized in that described shim body is provided with surface of contact and presses increase district at the middle part of adjacent two bolts hole, described surface of contact is pressed and is increased district by reducing the width formation of relevant position shim body.
Described surface of contact presses the minimum width that increases district to be more than or equal to 1/2nd of shim body Extreme breadth.
Described surface of contact press the length that increases district be greater than adjacent two bolts hole distance 1/2nd.
Described surface of contact presses increase district to make by the outer rim of shearing relevant position shim body.
Described surface of contact is pressed and is increased the outer rim in district and the outer rim smooth transition of both sides shim body.
Described shim body is rectangular, and Qi Sijiao is equipped with chamfering, forms surface of contact pressure increase district thereby the diameter R1 of the outer rim of two chamferings bottom being positioned at is all greater than the diameter R2 of its inner rim in chamfering position.
Described shim body is circular.
Adopt after said structure, because reduced the area of contact of shim body at bolt hole intermediate portion, under identical bolt axis power, the compressive load per unit area that shim body is subject to just increases, the surface of contact that is pad is pressed increase, surface of contact just can guarantee to form certain sealing strip between pad and flanged surface after pressing and increasing, and guarantees sealability.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model.
Embodiment
Gasket seal comprises the shim body 1 adapting with to be sealed shape, shim body 1 is made up of nonmetallic material, as asbestos, rubber etc., shim body 1 is circumferentially with multiple bolts hole 2 along it, shim body 1 is provided with surface of contact and presses increase district 3 at the middle part of adjacent two bolts hole 2, surface of contact presses increase district 3 all to arrange at the middle part between every adjacent two bolts hole, the in use larger position of pressurized also can be only set, and surface of contact is pressed and is increased district 3 by reducing the width formation of relevant position shim body 1.Surface of contact of the present utility model presses increase district 3 to make by the outer rim of shearing relevant position shim body 1, because the outer rim of shim body 1 can not produce and contact with the medium of sealing place, lower to its required precision, can reduce the fabricating cost of gasket seal, surface of contact is pressed and is increased the outer rim in district 3 and the outer rim smooth transition of both sides shim body 1, in use stress is too concentrated can to prevent like this shearing place, reduces the intensity of gasket seal.Surface of contact presses the minimum width that increases district 3 to be more than or equal to 1/2nd of shim body 1 Extreme breadth.Surface of contact press increase the length in district 3 be greater than adjacent two bolts hole 2 distance 1/2nd, be less than the distance of adjacent two bolts hole 2, surface of contact presses the edge that increases district 3 preferably to keep certain distance far from bolt hole 2, prevents from reducing the gasket strength at bolt hole 2 places.The utility model calculates surface of contact by ABAQUS professional software and presses the surface of contact that increases district 3 to press, and the surface of contact of the intermediate portion between two bolts hole 2 is pressed obviously and improved, and can meet the requirement of sealing.
As shown in Figure 1, so that be used in diesel engine, to observe the gasket seal at cover plate place be that example describes to the utility model.Because lower half portion machine oil storage volume of cover plate pad is larger, so surface of contact presses increase district 3 can only be arranged on the bottom of pad.The present embodiment Intermediate gasket body 1 is rectangular, its four jiaos are equipped with chamfering, thereby the diameter R1 that is positioned at the outer rim of two chamferings of bottom is all greater than the diameter R2 of its inner rim to press and increases district 3 at chamfering position formation surface of contact, is also provided with surface of contact and presses increase district 3 between its two bolts hole 2 in bottom.
The utility model only need be changed surface of contact and press the shape of little position in pad course of working, without changing structure and the bolt arrangement of part to be sealed or changing better gasket material, be convenient to mechanization production, under the prerequisite of improving sealing effect, can not increase cost.
It is circular that the utility model shim body 1 also can be.Its concrete shape and to be sealed 's structure adapts.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model.Previous embodiment has been described in detail the utility model, and for a person skilled in the art, its technological scheme that still can record aforementioned each embodiment is modified, or part technical characteristics is wherein equal to replacement.In every case within inventive concept scope of the present utility model, any modification of making, be equal to replacement, improvement etc., within being all included in protection domain of the present utility model.
Claims (7)
1. a gasket seal, comprise the shim body (1) adapting with to be sealed shape, described shim body (1) is circumferentially with multiple bolts hole (2) along it, it is characterized in that described shim body (1) is provided with surface of contact and presses increase district (3) at the middle part of adjacent two bolts hole (2), described surface of contact is pressed and is increased district (3) by reducing the width formation of relevant position shim body (1).
2. gasket seal according to claim 1, is characterized in that the minimum width that described surface of contact pressure increases district (3) is more than or equal to 1/2nd of shim body (1) Extreme breadth.
3. gasket seal according to claim 1, it is characterized in that described surface of contact press the length that increases district (3) be greater than adjacent two bolts hole (2) distance 1/2nd.
4. according to the gasket seal described in claims 1 to 3 any one, it is characterized in that described surface of contact pressure increases district (3) and makes by the outer rim of shearing relevant position shim body (1).
5. gasket seal according to claim 4, is characterized in that described surface of contact pressure increases the outer rim in district (3) and the outer rim smooth transition of both sides shim body (1).
6. gasket seal according to claim 4, it is characterized in that described shim body (1) is rectangular, its four jiaos are equipped with chamfering, form surface of contact pressure increase district thereby the diameter R1 of the outer rim of two chamferings bottom being positioned at is all greater than the diameter R2 of its inner rim in chamfering position.
7. gasket seal according to claim 1, is characterized in that described shim body (1) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784711.3U CN203614738U (en) | 2013-12-04 | 2013-12-04 | Sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784711.3U CN203614738U (en) | 2013-12-04 | 2013-12-04 | Sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614738U true CN203614738U (en) | 2014-05-28 |
Family
ID=50767387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320784711.3U Expired - Fee Related CN203614738U (en) | 2013-12-04 | 2013-12-04 | Sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678366A (en) * | 2017-03-28 | 2017-05-17 | 咸阳海龙密封复合材料有限公司 | Material decreasing and pressure increasing type sealing gasket for sealing face fastening force small part installation |
-
2013
- 2013-12-04 CN CN201320784711.3U patent/CN203614738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678366A (en) * | 2017-03-28 | 2017-05-17 | 咸阳海龙密封复合材料有限公司 | Material decreasing and pressure increasing type sealing gasket for sealing face fastening force small part installation |
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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 |
Granted publication date: 20140528 |