CN204647625U - A kind of exhaust pipe seal gasket - Google Patents
A kind of exhaust pipe seal gasket Download PDFInfo
- Publication number
- CN204647625U CN204647625U CN201520342403.4U CN201520342403U CN204647625U CN 204647625 U CN204647625 U CN 204647625U CN 201520342403 U CN201520342403 U CN 201520342403U CN 204647625 U CN204647625 U CN 204647625U
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- CN
- China
- Prior art keywords
- exhaust pipe
- annular corrugated
- seal gasket
- pipe seal
- pad
- 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.)
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Abstract
The utility model relates to seal arrangement technical field, disclose a kind of exhaust pipe seal gasket, comprise upper strata pad, underlying shims and interlayer shim, and above-mentioned three layers of pad are fixed together by the retaining circle of intermediate throughholes, with described interlayer shim for symmetry plane, the outer surface of described upper strata pad and described underlying shims is provided with symmetrically annular corrugated, and described annular corrugated near described intermediate throughholes along described intermediate throughholes circumferentially.In this exhaust pipe seal gasket, add annular corrugated sealing configuration, during assembling, annular corrugated compression with flanged surface is out of shape, and possesses good seal action, avoids leaking, the phenomenon such as gas leakage.
Description
Technical field
The utility model relates to seal arrangement technical field, particularly relates to a kind of exhaust pipe seal gasket.
Background technique
In order to the convenience of transporting and assembling, the gas exhaust piping of motor car engine is divided into several sections of settings usually, adopts Flange joint between each section of gas exhaust piping, in order to improve the sealing of Flange joint, between the flange of two pipelines, is provided with sealing gasket.
Gasket structure conventional in prior art as shown in Figure 1, it includes three-decker, upper strata 1', lower floor 2' are sheet metal, mesosphere 3' is the packing be made up of the flexible material such as asbestos, graphite, for improving the bond strength of flexible material, usual flexible material inside also has one deck iron sheet skeleton, and three-decker is forced together by the retaining circle 4' of sealing gasket intermediate hole.During use, upper and lower layer sheet metal contacts with exhaust flange face, easily high temperature deformation after exhaust flange welds with outlet pipe, and therefore surface of contact easily produces the phenomenon of poor sealing, also because leaking gas, leaking, can cause corrosion and abnormal sound.
Therefore, those skilled in the art need to improve existing gasket structure, to solve the above-mentioned problems in the prior art.
Model utility content
The purpose of this utility model is to provide a kind of exhaust pipe seal gasket, to improve the sealing that gas exhaust tube flange connects, avoids phenomenons such as leaking gas, leak, prevents corrosion and abnormal sound.
To achieve these goals, the utility model provides following technological scheme:
A kind of exhaust pipe seal gasket, comprise upper strata pad, underlying shims and interlayer shim, and above-mentioned three layers of pad are fixed together by the retaining circle of intermediate throughholes, with described interlayer shim for symmetry plane, the outer surface of described upper strata pad and described underlying shims is provided with symmetrically annular corrugated, and described annular corrugated near described intermediate throughholes along described intermediate throughholes circumferentially.
Preferably, described annular corrugated be one or more groups, and many groups described annular corrugated be that concentric circle is annular corrugated.
Preferably, described annular corrugated be two groups.
Preferably, often organizing described annular corrugated width is 2.5mm, is highly 0.7mm, and center distance annular corrugated described in two groups is 3.5mm.
Preferably, the thickness of described exhaust pipe seal gasket is 0.6 ~ 1.2mm.
Preferably, described upper strata pad, described underlying shims and described interlayer shim are stainless steel gasket.
Preferably, the thickness of described interlayer shim is greater than the thickness of described upper strata pad, and is greater than the thickness of described underlying shims.
Preferably, described exhaust pipe seal gasket is ovaloid seal pad, and is respectively equipped with mounting hole at the two ends that its major axis is relative.
Preferably, described mounting hole is waist-shaped hole.
Preferably, described upper strata pad and described underlying shims are punching press integrated formed structure.
The exhaust pipe seal gasket that the utility model provides, comprise upper strata pad, underlying shims and interlayer shim, and above-mentioned three layers of pad are fixed together by the retaining circle of intermediate throughholes, and with described interlayer shim for symmetry plane, the outer surface of described upper strata pad and described underlying shims is provided with symmetrically annular corrugated, described annular corrugated near described intermediate throughholes along described intermediate throughholes circumferentially, in use, on, annular corrugated on underlying shims abuts with the flanged surface of both sides respectively, distortion after compressing, the high temperature deformation of flanged surface is served to the effect of compensation, good seal action can be played, compared with directly contacting with flanged surface with layer pad upper and lower in prior art, improve the sealability of sealing gasket, can effectively prevent from leaking, the phenomenon such as gas leakage, avoid and corrosion and abnormal sound occur.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, being briefly described to the accompanying drawing used required in embodiment below, and will being described in further detail specific embodiments of the invention by reference to the accompanying drawings, wherein:
Fig. 1 is the sectional view of exhaust pipe seal gasket in prior art;
The plan view of the exhaust pipe seal gasket that Fig. 2 provides for the utility model;
Fig. 3 is the sectional view of exhaust pipe seal gasket in Fig. 2;
Fig. 4 is the using state schematic diagram of exhaust pipe seal gasket in Fig. 2.
Label declaration wherein in above-mentioned accompanying drawing is as follows:
1'-upper strata, 2'-lower floor, 3'-mesosphere, 4'-retaining circle;
1-upper strata pad, 2-underlying shims, 3-interlayer shim;
A-intermediate throughholes, b-is annular corrugated, c-mounting hole; A-flange, B-exhaust pipe seal gasket.
Embodiment
In order to make those skilled in the art understand the technical solution of the utility model better, do to introduce in detail further to this programme below in conjunction with specific embodiment.
Referring to figs. 2 and 3, the utility model embodiment provides a kind of novel exhaust pipe seal gasket structure, comprise upper strata pad 1, underlying shims 2 and interlayer shim 3, and above-mentioned three layers of pad are fixed together by the retaining circle 4 of intermediate throughholes a, and with described interlayer shim 3 for symmetry plane, the outer surface of described upper strata pad 1 and described underlying shims 2 is provided with annular corrugated b symmetrically, described annular corrugated b near described intermediate throughholes a and along described intermediate throughholes a circumferentially, described annular corrugated b can be 3 ~ 5mm apart from the distance at the edge of described central through bore a.
With reference to figure 4, during use, exhaust pipe seal gasket B is pressed between two flange A, annular corrugated b on described upper strata pad 1 and described underlying shims 2 abuts with the surface of the flange A of both sides respectively, after compression, annular corrugated b stress deformation, is adjacent on the surface of described flange A, the high temperature deformation of flanged surface is compensated, thus improves the sealability of sealing gasket.
In the present embodiment specific implementation process, described annular corrugated b is one or more groups, and the described annular corrugated b of many groups is that concentric circle is annular corrugated.
Preferably, described annular corrugated b is two groups, and coordinates with described retaining circle 4, form respectively three seals ring on the surface of upper and lower layer pad, and structure is simple, and can possess good seal action.
In a preferred embodiment, the width often organizing described annular corrugated b is preferably 2.5mm, is highly 0.7mm, and described in two groups, the center distance of annular corrugated b is 3.5mm, ensures that annular corrugated b can produce enough compress variations.
In the prior art, the mesosphere of exhaust pipe seal gasket is the flexible material such as asbestos, graphite, under the long-time impact of vent systems high temperature, corrosive gas, easy ablation comes off and loses seal action, exhaust sealing pad surface of contact is caused to leak gas, leak, cause corrosion and abnormal sound, and asbestos have been listed in taboo regulated substance, therefore, on the basis of the above-mentioned technical solutions of this embodiment, described upper strata pad 1, described underlying shims 2 and described interlayer shim 3 all elect stainless steel gasket as, preferred SUS304 stainless steel sealing gasket.
Further, the thickness of described interlayer shim 3 is greater than the thickness of described upper strata pad 1, and be greater than the thickness of described underlying shims 2, the thickness of described upper strata pad 1 and described underlying shims 2 is preferably 0.2mm respectively, described interlayer shim 3 is preferably 0.3mm, and the total thickness of described exhaust pipe seal gasket is about 0.6 ~ 1.2mm.Upper and lower layer pad is thinner, can ensure, under impacting force effect, deformation preferably to occur; And interlayer shim thickness is comparatively large, be beneficial to the intensity improving whole pad.
When described exhaust pipe seal gasket is in the present embodiment produced, described upper strata pad 1 and described underlying shims 2 are all preferably punching press integrated formed structure, and easy to process, intensity is higher.
In the present embodiment, described exhaust pipe seal gasket is preferably ovaloid seal pad, and is respectively equipped with mounting hole c at the two ends that its major axis is relative, and the installation for sealing gasket is fixed; Described mounting hole c is waist-shaped hole, to facilitate adjustment assembly error.
Structure of the present invention, feature and action effect is described in detail above according to graphic shown embodiment; the foregoing is only preferred embodiment of the present invention; but the present invention does not limit practical range with shown in drawing; every change done according to conception of the present invention; or be revised as the Equivalent embodiments of equivalent variations; do not exceed yet specification with diagram contain spiritual time, all should in protection scope of the present invention.
Claims (10)
1. an exhaust pipe seal gasket, comprise upper strata pad (1), underlying shims (2) and interlayer shim (3), and above-mentioned three layers of pad are fixed together by the retaining circle (4) of intermediate throughholes (a), it is characterized in that, with described interlayer shim (3) for symmetry plane, the outer surface of described upper strata pad (1) and described underlying shims (2) is provided with annular corrugated (b) symmetrically, and described annular corrugated (b) is near described intermediate throughholes (a) along described intermediate throughholes (a) circumferentially.
2. exhaust pipe seal gasket according to claim 1, is characterized in that, described annular corrugated (b) is one or more groups, and many groups described annular corrugated (b) for concentric circle annular corrugated.
3. exhaust pipe seal gasket according to claim 2, is characterized in that, described annular corrugated (b) is two groups.
4. exhaust pipe seal gasket according to claim 3, is characterized in that, the width often organizing described annular corrugated (b) is 2.5mm, is highly 0.7mm, and described in two groups, the center distance of annular corrugated (b) is 3.5mm.
5. exhaust pipe seal gasket according to claim 4, is characterized in that, its thickness is 0.6 ~ 1.2mm.
6. the exhaust pipe seal gasket according to any one of Claims 1 to 5, is characterized in that, described upper strata pad (1), described underlying shims (2) and described interlayer shim (3) are stainless steel gasket.
7. exhaust pipe seal gasket according to claim 6, is characterized in that, the thickness of described interlayer shim (3) is greater than the thickness on described upper strata pad (1), and is greater than the thickness of described underlying shims (2).
8. exhaust pipe seal gasket according to claim 1, is characterized in that, it is ovaloid seal pad, and is respectively equipped with mounting hole (c) at the two ends that its major axis is relative.
9. exhaust pipe seal gasket according to claim 8, is characterized in that, described mounting hole (c) is waist-shaped hole.
10. exhaust pipe seal gasket according to claim 1, is characterized in that, described upper strata pad (1) and described underlying shims (2) are punching press integrated formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520342403.4U CN204647625U (en) | 2015-05-25 | 2015-05-25 | A kind of exhaust pipe seal gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520342403.4U CN204647625U (en) | 2015-05-25 | 2015-05-25 | A kind of exhaust pipe seal gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647625U true CN204647625U (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520342403.4U Expired - Fee Related CN204647625U (en) | 2015-05-25 | 2015-05-25 | A kind of exhaust pipe seal gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647625U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185798A (en) * | 2019-06-24 | 2019-08-30 | 江苏省特种设备安全监督检验研究院 | A kind of self-sealed alloy double bellow seal Composition spacer |
| CN110195880A (en) * | 2019-06-21 | 2019-09-03 | 沈阳化建通用设备有限公司 | Smoke impervious baffle door |
| CN112555536A (en) * | 2020-12-17 | 2021-03-26 | 江西五十铃汽车有限公司 | Flange sealing gasket structure |
-
2015
- 2015-05-25 CN CN201520342403.4U patent/CN204647625U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195880A (en) * | 2019-06-21 | 2019-09-03 | 沈阳化建通用设备有限公司 | Smoke impervious baffle door |
| CN110185798A (en) * | 2019-06-24 | 2019-08-30 | 江苏省特种设备安全监督检验研究院 | A kind of self-sealed alloy double bellow seal Composition spacer |
| CN110185798B (en) * | 2019-06-24 | 2024-02-27 | 江苏省特种设备安全监督检验研究院 | Self-sealing alloy dual-corrugated sealing composite gasket |
| CN112555536A (en) * | 2020-12-17 | 2021-03-26 | 江西五十铃汽车有限公司 | Flange sealing gasket structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| 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: 20150916 Termination date: 20190525 |