CN206175887U - Novel metal O type is sealed to be filled up - Google Patents
Novel metal O type is sealed to be filled up Download PDFInfo
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- CN206175887U CN206175887U CN201621211269.5U CN201621211269U CN206175887U CN 206175887 U CN206175887 U CN 206175887U CN 201621211269 U CN201621211269 U CN 201621211269U CN 206175887 U CN206175887 U CN 206175887U
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Abstract
The utility model discloses a novel metal O type is sealed to be filled up, including two seal gasket, every seal gasket goes up circular boss of punching press play respectively, and the through -hole corresponding with internal diameter of the pipeline is seted up at the center of boss, and seal gasket sets up at the edge screw hole that passes the bolt, its characterized in that: inlaying between two circular bosss after two seal gasket's the marginal subtend spot welding and being equipped with an annular trimmer, the internal diameter of annular trimmer is the same with the internal diameter of through -hole. The utility model discloses a set up annular trimmer between seal gasket, after bolt tightening is being adopted at sealed both ends of filling up, can effectively reduce and go up lower flange area of contact, the increase locking force to can form the gridle around flange through hole, force sealed backing ring shape contact surface metal surface to mould the type and be not out of shape, thereby it be tight to make sealed pad and last lower flange closed -up surface paste, reaches sealed requirement.
Description
Technical field
This utility model is related to a kind of leakage-preventing sealing device in industrial circle, particularly a kind of O-shaped sealing gasket.
Background technology
Sealing gasket is a kind of for sealing spare part in machinery, equipment, pipeline etc., plays sealing function.The material of sealing gasket
There are wooden, cotton, papery, rubber, plastics, metal class and various macromolecular materials etc., these metals or nonmetallic tabular material
Sealing gasket is made after the technique such as cleaved, punching press or cutting.
In Engine Industry, because environmental requirement needs to be recycled high-temperature tail gas, it is cold that this is accomplished by installation EGR
But device is recycled to waste gas water cooling, and the seal request of pipeline connection is necessarily involved in the installation process of cooler for recycled exhaust gas, due to
Exhaust temperature is higher, and up to 720 degree, and high-temperature tail gas have pressure, thus sealing gasket to carry out Hard link using metallic gasket close
Envelope.
The structure of the O-shaped sealing gasket of conventional metals as depicted in figs. 1 and 2, including two panels gasket seal 31, on every pad point
Do not stamp out the boss 32 of Φ 78mm, high 0.3mm, then open up through hole corresponding with internal diameter of the pipeline at the center of boss, then
The screw hole of bolt was punched at the edge of two gasket seals, finally by the edge of two gasket seals to being welded into sealing gasket to point.Should
When the O-shaped sealing gasket of metal is applied to be installed in cooler for recycled exhaust gas, it is encased inside between upper flange 1 and lower flange 2, then by bolt successively
Through the fastening of upper flange, sealing gasket and lower flange, so as to force boss surrender to be adjacent to the metal covering of upper lower flange, play sealing and make
With as shown in Figure 3.However, the O-shaped sealing gasket of this kind of metal is in Assembling Production, exist after bolt tightens, the contact of upper lower flange
Face is larger, causes thrust to disperse, and thrust is reduced, and portioned product sealing property is not up to standard；Trace it to its cause, be thrust not
It is enough, cause sealing gasket to produce some micro gaps and form leakage with flange face.
The content of the invention
This utility model technical issues that need to address are to provide a kind of being applied to used in cooler for recycled exhaust gas installation process
The O-shaped sealing gasket of metal, can closely be adjacent to upper and lower flange surface, reach seal request.
To solve above-mentioned technical problem, technical solution adopted in the utility model is as follows.
A kind of O-shaped sealing gasket of novel metal, including two panels gasket seal, stamp out respectively a circle on every gasket seal
Shape boss, the center of boss opens up through hole corresponding with internal diameter of the pipeline, and gasket seal edge has the screw hole through bolt；
It is characterized in that：The edge of two gasket seal is to being embedded with an annular adjustment between two round boss to a postwelding
Piece, the internal diameter of annular tab is identical with the internal diameter of through hole.
A kind of O-shaped sealing gasket of above-mentioned novel metal, the height of the boss is 0.3mm, and the thickness of annular tab is
0.05mm~0.08mm。
A kind of O-shaped sealing gasket of above-mentioned novel metal, the gasket seal and annular tab are stainless steel substrates.
As a result of above technical scheme, technological progress acquired by this utility model is as follows.
This utility model by arranging annular tab between gasket seal, when sealing gasket two ends using bolt twist
After tight, upper and lower flange contact area is effectively reduced, increases coupling mechanism force, and endless belt can be formed around flange through hole,
Force sealing gasket annular contact surface metal surface plastotype not deformed, so that sealing gasket is closely adjacent to upper and lower flange surface, reach
To seal request.
Description of the drawings
Fig. 1 is the structural representation of the O-shaped sealing gasket of conventional metals；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the installation diagram of the O-shaped sealing gasket of conventional metals and flange；
Fig. 4 is structural representation of the present utility model；
Fig. 5 is the installation diagram of this utility model and flange.
Wherein：1. upper flange, 2. lower flange, 3. sealing gasket, 31. gasket seals, 32. boss, 33. annular tabs.
Specific embodiment
This utility model is further elaborated below in conjunction with the drawings and specific embodiments.
A kind of O-shaped sealing gasket of novel metal, including two panels gasket seal 31, stamp out respectively one on every gasket seal
Round boss 32, the height of boss is 0.3mm, and the center of boss opens up through hole corresponding with internal diameter of the pipeline, gasket seal edge
Offer the screw hole through bolt；The edge of two gasket seals to spot welding, after welding the round boss of two gasket seals it
Between be embedded with an annular tab 33, as shown in figure 4, the internal diameter of annular tab 33 is identical with the internal diameter of through hole, annular adjustment
The thickness of piece is 0.05mm ~ 0.08mm.In this utility model, gasket seal and annular tab are stainless steel substrates.
When this utility model is applied to be installed in cooler for recycled exhaust gas, it is encased inside between upper flange 1 and lower flange 2, then by bolt
The fastening of upper flange, sealing gasket and lower flange is sequentially passed through, as shown in figure 5, upper and lower flange contact area is effectively reduced, increase lock
Clamp force, and can make to form endless belt around flange through hole, force sealing gasket annular contact surface metal surface plastotype not deformed,
So that sealing gasket is closely adjacent to upper and lower flange surface, seal request is reached.
Claims (3)
1. a kind of O-shaped sealing gasket of novel metal, including two panels gasket seal（31）, stamp out one on every gasket seal respectively
Round boss（32）, the center of boss opens up through hole corresponding with internal diameter of the pipeline, and gasket seal edge has through bolt
Screw hole；It is characterized in that：The edge of two gasket seal between two round boss to a postwelding to being embedded with a ring
Shape tab（33）, annular tab（33）Internal diameter it is identical with the internal diameter of through hole.
2. the O-shaped sealing gasket of a kind of novel metal according to claim 1, it is characterised in that：The height of the boss is
0.3mm, the thickness of annular tab is 0.05mm ~ 0.08mm.
3. the O-shaped sealing gasket of a kind of novel metal according to claim 1, it is characterised in that：The gasket seal and annular
Tab is stainless steel substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211269.5U CN206175887U (en) | 2016-11-10 | 2016-11-10 | Novel metal O type is sealed to be filled up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211269.5U CN206175887U (en) | 2016-11-10 | 2016-11-10 | Novel metal O type is sealed to be filled up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175887U true CN206175887U (en) | 2017-05-17 |
Family
ID=58685102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621211269.5U Active CN206175887U (en) | 2016-11-10 | 2016-11-10 | Novel metal O type is sealed to be filled up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175887U (en) |
-
2016
- 2016-11-10 CN CN201621211269.5U patent/CN206175887U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |