CN207673859U - Tooth form compound gasket - Google Patents
Tooth form compound gasket Download PDFInfo
- Publication number
- CN207673859U CN207673859U CN201721723050.8U CN201721723050U CN207673859U CN 207673859 U CN207673859 U CN 207673859U CN 201721723050 U CN201721723050 U CN 201721723050U CN 207673859 U CN207673859 U CN 207673859U
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- CN
- China
- Prior art keywords
- tooth
- tooth form
- ontology
- form compound
- gasket
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- 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
A kind of tooth form compound gasket belongs to sealing element technical field, including flat shim ontology, and the ontology upper and lower ends face is equipped with evenly distributed tooth form, and for the tooth peak height of innermost circle in other teeth about 0.5mm 1mm, other tooth heights are identical.The ontology medial surface is machined with dovetail groove, the body surface and side are covered with the elastic layer being made of flexible graphite sheet material, and the elastic layer splices in the medial surface of ontology, and stitching portion is dovetail-shape and is filled in the dovetail groove, and unfilled entire dovetail groove, there are gaps.The design that the utility model passes through high tooth and dovetail groove, dovetail slot space, which becomes smaller, when compressed makes elastic layer tighten, prevent gasket from falling apart, internal pressure is excessive, understrressing when dovetail groove internal expansion, high tooth is set more to be bonded with flange face, achieve the effect that self-tightening sealing, the problem of effective solution tooth form compound gasket easily falls apart, moreover it is possible to make the gasket there is self-tightening sealing characteristic.
Description
Technical field
The utility model is related to a kind of gasket seals, relate generally to one kind and are not easy to fall apart, and have the tooth form group of self-tightening sealing
Close gasket.
Background technology
Tooth form compound gasket is general to process concentric ditch in two faces of metal stainless steel flat shim with accurate lathe
Slot may be selected soft graphite, PTFE, without asbestos board or some other soft metal, be pasted onto the two of gasket according to different media
Face.Also it can directly be used without sealant, play good sealing effect.
Most of tooth form compound gaskets currently on the market do not have the function of self-tightening sealing, it is desirable that very high pretightning force, ruler
Also there is also the defects easily fallen apart, be easily crushed for very little larger tooth form compound gasket.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, adapts to reality and need, design one kind is not easy to fall apart,
There is the tooth form compound gasket of self-tightening sealing.
In order to realize that the utility model aim, the utility model use following technical solution：
A kind of tooth form compound gasket is designed, it includes flat shim ontology, and the upper and lower surface of ontology is machined with evenly distributed
Tooth form, the medial surface of flat shim is machined with annular groove；
Body surface and side cover elasticity layer, and elastic layer is flexible graphite sheet material（Or other bullets elasticity is excellent non-
Metal material）, in the medial surface splicing of ontology, stitching portion is filled in the annular groove elastic layer；
Preferably, the height of the tooth form has difference, is in particular in：The tooth peak height of innermost circle is in other teeth about 0.5mm-
1mm, other tooth heights are identical；
Preferably, the section of the annular groove is swallow-tail form；
Preferably, the slot bottom of the dovetail groove is in the centre position of two teeth of innermost circle；
Preferably, the elastic layer stitching portion is dovetail-shape；
Preferably, the stitching portion is filled in annular groove, and unfilled annular groove, and there are gaps；
Preferably, the elastic layer connecting method is only contact rather than other modes connection.
The utility model uses the technical solution that elastic layer coats dentiform gasket entirely, and difference is combined with traditional tooth form
A pad only covering upper and lower surface, solve shim size it is larger when elastic layer and dentiform gasket be detached to make to be easy to make and fall apart
Defect, in addition the high tooth above dovetail groove mating groove can generate the effect of self-tightening sealing in actual operation.
Description of the drawings
Fig. 1 is the sectional view of the utility model；
Fig. 2 is the utility model skeleton sectional view；
Fig. 3 is the specific implementation schematic diagram of the utility model；
1 flat shim ontology, 2 elastic layers, 3 bottom shape teeth, 4 high shape teeth, 5 elastic layer stitching portions, 6 annular grooves, 61 annulars in figure
Trench bottom.
Specific implementation mode
The utility model is described in detail below in conjunction with the accompanying drawings：
Embodiment：A kind of tooth form compound gasket, referring to figs. 1 to Fig. 3, including flat shim ontology（1）, the ontology upper and lower two
End face is equipped with evenly distributed tooth form, and the height of tooth form has difference, is in particular in：The tooth peak height of innermost circle in other teeth about
0.5mm-1mm, other tooth heights are identical.
The ontology medial surface is machined with annular groove（6）, the section of the annular groove is swallow-tail form, the ring
Shape trench bottom（61）It is in high shape tooth and close to high shape tooth（4）The low shape tooth on side（3）Centre position.
The ontology（1）Surface and side are covered with the elastic layer being made of flexible graphite sheet material（2）, the elastic layer
（2）Splice in the medial surface of ontology, connecting method is only contact rather than other connections, elastic layer stitching portion（5）It is dovetail-shape simultaneously
It is filled in the annular groove（6）It is interior, and unfilled entire annular groove（6）, there are gaps.
In practical work process, after flange fastening, due to annular groove（6）Inside is elastic layer, Gao Xingchi（4）It can be to ring
Shape slot（6）Interior Direction distortion, when being deformed into and low shape tooth（3）When identical height, Gao Xingchi（4）Not redeformation.In high shape
Tooth（4）During being compressed into annular groove, annular groove（6）Space becomes smaller, elastic layer stitching portion（5）It is filled out due to being squeezed
Full entire annular groove（6）, make entire elastic layer（2）To annular groove（6）Internal direction is tightened, and then makes elastic layer（2）With it is interior
Portion's dentiform gasket is more bonded, and prevents gasket from falling apart.When internal pressure is excessive, compressed high shape tooth（4）By annular groove（6）It is internal
Expansive force and be more adjacent to flange face（The bigger patch of internal pressure it is tighter）, its inner sealing when making flange for gasket power deficiency
Will not be impacted, to achieve the effect that self-tightening sealing.
In conclusion the utility model, by designing the technical solution of dovetail groove and stage teeth, effective solution is existing
The problem of easily falling apart in tooth form compound gasket long process, and can also achieve the effect that self-tightening sealing, pretightning force is required low.
Above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
Other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope should all cover in the right of the utility model.
Claims (7)
1. a kind of tooth form compound gasket, it is characterised in that：Including flat shim ontology, the ontology upper and lower surface is machined with tooth form,
The medial surface of the ontology is machined with annular groove, and the surface of the ontology and side cover elasticity layer, and the elastic layer is at this
The medial surface of body splices, and stitching portion is filled in the annular groove.
2. a kind of tooth form compound gasket as described in claim 1, it is characterised in that：The height of the tooth form has difference, specifically
It shows：For the tooth peak height of innermost circle in other teeth about 0.5mm-1mm, other tooth heights are identical.
3. a kind of tooth form compound gasket as described in claim 1, it is characterised in that：The section of the annular groove is swallow-tail form.
4. a kind of tooth form compound gasket as claimed in claim 3, it is characterised in that：The slot bottom of the dovetail groove is in innermost circle
Two teeth centre position.
5. a kind of tooth form compound gasket as described in claim 1, it is characterised in that：The elastic layer stitching portion is dovetail-shape.
6. a kind of tooth form compound gasket as described in claim 1, it is characterised in that：The stitching portion is filled in dovetail groove,
And unfilled dovetail groove, there are gaps.
7. a kind of tooth form compound gasket as described in claim 1, it is characterised in that：The elastic layer connecting method is only to contact
Rather than other modes connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721723050.8U CN207673859U (en) | 2017-12-12 | 2017-12-12 | Tooth form compound gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721723050.8U CN207673859U (en) | 2017-12-12 | 2017-12-12 | Tooth form compound gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207673859U true CN207673859U (en) | 2018-07-31 |
Family
ID=62968156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721723050.8U Expired - Fee Related CN207673859U (en) | 2017-12-12 | 2017-12-12 | Tooth form compound gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207673859U (en) |
-
2017
- 2017-12-12 CN CN201721723050.8U patent/CN207673859U/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 |
Granted publication date: 20180731 Termination date: 20191212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |