CN104633116A - Metal sealing piece - Google Patents
Metal sealing piece Download PDFInfo
- Publication number
- CN104633116A CN104633116A CN201410738075.XA CN201410738075A CN104633116A CN 104633116 A CN104633116 A CN 104633116A CN 201410738075 A CN201410738075 A CN 201410738075A CN 104633116 A CN104633116 A CN 104633116A
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- mentioned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention provides a metal sealing piece and belongs to special-shaped and annular metal sealing pieces. By the adoption of the metal sealing piece, the degrees of sealing of the whole circumference are uniform. The shape of the cross section can be changed, so that the bending rigidity of a cantilever beam of a straight part (20) is larger than that of an R-shaped bent part (10).
Description
Technical field
The present invention relates to metal seal.
Background technique
In the past, the structure that as the metal seal of the sealing carried out between parallel opposed two planes, shape of cross section was U type, global shape is circle is known.
Patent documentation 1: JP 2009-No. 24838 publications when above-mentioned metal seal is in the past done integrally non-circular (also have be called abnormity situation), arrange, will carry out the sealing of periphery in this non-circular window portion along entirety non-circular window portion (opening portion), have the situation that overall sealability worsens.
Particularly, in the non-circular situation in R sigmoid portion with very little radius of curvature, there is the situation that can not obtain sufficient sealing (sealability) at the position of the straight line edge of residual part.
Summary of the invention
So the present invention is in the metal seal that global shape is loop-like, and its shape of cross section throughout complete cycle is not
Uniformly.
In addition, a kind of metal seal possesses base portion and a pair cantilever beam-like elastic foot sheet in cross-section, described a pair cantilever beam-like elastic foot sheet launches shape from this base portion with parallel or front end and projects, front end has the little teat of sealing crimping contacted respectively in opposed two parallel planes, described metal seal global shape is the ring-type of the abnormity with R sigmoid portion and straight line edge, make the outstanding size of above-mentioned cantilever beam-like elastic foot sheet, at least 1 in wall thickness dimension and pin sheet base portion thickening part different in the 1st central position in above-mentioned R sigmoid portion and the 2nd central position of straight line edge, the overhang flexural rigidity of above-mentioned cantilever beam-like elastic foot sheet is only compared with shape of cross section, above-mentioned 2nd central position is set larger than above-mentioned 1st central position.
In addition, from the 1st central position in above-mentioned R sigmoid portion towards the 2nd central position of above-mentioned straight line edge, only make
Increase to the above-mentioned overhang flexural rigidity step compared with shape of cross section and/or gradient, the above-mentioned overhang flexural rigidity of above-mentioned 2nd central position is set larger than above-mentioned 1st central position.
According to metal seal for the present invention, when entirety be abnormity loop-like, also can throughout whole
Surface of contact is made to press homogenization in week.Particularly, in the straight line edge and (less radius of curvature) R sigmoid portion of the ring-type of abnormity, crimp the surface of contact pressure equalization of little teat for opposed two parallel planes.Like this, surface of contact pressure is along whole periphery equalization, so the fluid that reliably can reduce Sealing entirety leaks, it is possible to significantly improve the sealability in the window portion (opening portion) of the R sigmoid portion existence as elongated racetrack or rectangular-shaped like that very little radius of curvature especially.
Accompanying drawing explanation
Fig. 1 is the plan view illustrated for the global shape of an example of metal seal for the present invention.
Fig. 2 is the plan view illustrated for the global shape of another example of metal seal.
Fig. 3 is the plotted curve surface of contact pressure ratio of the present invention and past case comparatively represented.
Fig. 4 is the sectional elevation of the 1st central position in the R sigmoid portion representing the 1st mode of execution of the present invention.
Fig. 5 is the sectional elevation of the 2nd central position of the straight line edge of the 1st mode of execution.
Embodiment
In Fig. 1 or Fig. 2, to represent that global shape is for having R sigmoid portion 10 and straight line edge (straight portion) 20
The metal seal 1 of the ring-type closed of abnormity (non-circular).Fig. 1 represents elongated run-track shaped, and Fig. 2 represents rectangular-shaped situation.
Fig. 4 represents the sectional elevation of the 1st mode of execution of the present invention, illustrate metal seal 1, described metal seal 1 is arranged in recessed rectangular-shaped seal groove 13 on the 1st parts 11, seals between (plane) the groove bottom 13A of this rectangular-shaped seal groove 13 of the 1st parts 11 and the 2nd plane parts 12.This metal seal 1 is so-called U type Sealing, in cross-section, and a pair cantilever beam-like elastic foot sheet 4,4 possessing base portion (bottom wall portion) 3 and project abreast from this base portion 3.
Above-mentioned elastic foot sheet 4 has the little teat 7 of sealing crimping, the little teat 7 of described sealing crimping contacts in opposed two parallel planes 5,6 respectively--in Fig. 4, the groove bottom 13A of the 1st parts 11 is equivalent to plane the 5,2nd parts 12 and is equivalent to another plane 6--on.In legend, the little teat 7 of this crimping is shape of cross sections of roundlet mountain type, but can be made three hornberg type or quadrilateral shape.
Further, comparison diagram 4 and Fig. 5 (A) known, make the outstanding size H of elastic foot sheet 4 at loop-like metal sealing
Different as follows on the circumferential position of part 1.Namely, in metal seal 1, by making the depth dimensions of groove 8 different, (under the original state that external diameter is measure-alike) makes outstanding size H different, and, in the metal seal 1 of or Integral rectangular shape run-track shaped in the entirety shown in Fig. 1 or Fig. 2, call it as the 1st central position at the central position M1(in R sigmoid portion 10) with central position M2, M2 ＇ (calling it as the 2nd central position) of straight line edge 20 in different.
That is, Fig. 4 is the cross section of the 1st central position M1, and Fig. 5 (A) is the cross section of the 2nd central position M2, M2 ＇,
When being compared by Fig. 4 and Fig. 5 (A), the outstanding size H of Fig. 4 is comparatively large, and thus, the overhang flexural rigidity G of cantilever beam-like elastic foot sheet 4 only compares with shape of cross section, and the 2nd central position M2, M2 ＇ is larger than the 1st central position M1.
In explanation of the present invention, so-called " only comparing overhang flexural rigidity with shape of cross section ", refer at Fig. 1, figure
When in 2, illustrative global shape is the abnormity with R sigmoid portion 10, the impact of the existence in R sigmoid portion 10 feeds through to the overhang flexural rigidity of elastic foot sheet 4, therefore, in the metal seal 1 of reality, " shape of cross section " and " circumferential position in the scope in R sigmoid portion 10 or have left how many circumferential positions from R sigmoid portion 10 " comprehensively must be decided, but here, ignore " circumferential position " of the latter, only compare overhang flexural rigidity with the former.
Then, comparison diagram 5(B) known with Fig. 4, for the wall thickness dimension T of elastic foot sheet 4, compared with the 1st central position M1 in (shown in Fig. 1, Fig. 2) R sigmoid portion 10, the 2nd central position M2, M2 ＇ of straight line edge 20 is set greatly.Like this, the overhang flexural rigidity G of elastic foot sheet 4 is when only comparing with shape of cross section, and the 2nd central position M2, M2 ＇ is larger than the 1st central position M1.
Although be illustrated embodiments of the present invention in specification, these mode of executions just as prompting, should not limit protection scope of the present invention.Carry out various omission, displacement and change without departing from the spirit and scope of the present invention all should be included in protection scope of the present invention.
Claims (3)
1. a metal seal, global shape is loop-like, it is characterized in that, its shape of cross section is not uniform throughout complete cycle.
2. a metal seal, possess base portion (3) and a pair cantilever beam-like elastic foot sheet (4 in cross-section, 4), described a pair cantilever beam-like elastic foot sheet (4, 4) launch shape from this base portion (3) with parallel or front end to project, front end has the two parallel planes (5 contacted respectively opposed, 6) the sealing little teat of crimping (7) on, it is characterized in that, global shape is the ring-type of the abnormity with R sigmoid portion (10) and straight line edge (20), make above-mentioned cantilever beam-like elastic foot sheet (4, 4) outstanding size (H), at least 1 in wall thickness dimension (T) and pin sheet base portion thickening part (N) at the 1st central position (M1) of above-mentioned R sigmoid portion (10) and the 2nd central position (M2 of straight line edge (20), M2 ＇) middle different, by above-mentioned cantilever beam-like elastic foot sheet (4, 4) overhang flexural rigidity (G) only compares with shape of cross section, by above-mentioned 2nd central position (M2, M2 ＇) set larger than above-mentioned 1st central position (M1).
3. the metal seal as described in claim 2, it is characterized in that, from the 1st central position (M1) of above-mentioned R sigmoid portion (10) towards the 2nd central position (M2) of above-mentioned straight line edge (20), above-mentioned overhang flexural rigidity (G) step that only compares with shape of cross section and/or gradient ground are increased, the above-mentioned overhang flexural rigidity (G) of above-mentioned 2nd central position (M2) is set than above-mentioned 1st central position (M1) greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738075.XA CN104633116A (en) | 2014-12-06 | 2014-12-06 | Metal sealing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738075.XA CN104633116A (en) | 2014-12-06 | 2014-12-06 | Metal sealing piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104633116A true CN104633116A (en) | 2015-05-20 |
Family
ID=53212190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410738075.XA Pending CN104633116A (en) | 2014-12-06 | 2014-12-06 | Metal sealing piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633116A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167439A (en) * | 2017-12-29 | 2018-06-15 | 北京化工大学 | A kind of novel metal U-shaped combination sealing ring structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090206558A1 (en) * | 2005-06-24 | 2009-08-20 | Hideto Nameki | Sealing Structure |
| CN102575771A (en) * | 2009-08-26 | 2012-07-11 | Nok株式会社 | Metal gasket and method for producing die for metal gasket |
| CN103216619A (en) * | 2012-01-23 | 2013-07-24 | 三菱电线工业株式会社 | Metal seal |
-
2014
- 2014-12-06 CN CN201410738075.XA patent/CN104633116A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090206558A1 (en) * | 2005-06-24 | 2009-08-20 | Hideto Nameki | Sealing Structure |
| CN102575771A (en) * | 2009-08-26 | 2012-07-11 | Nok株式会社 | Metal gasket and method for producing die for metal gasket |
| CN103216619A (en) * | 2012-01-23 | 2013-07-24 | 三菱电线工业株式会社 | Metal seal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167439A (en) * | 2017-12-29 | 2018-06-15 | 北京化工大学 | A kind of novel metal U-shaped combination sealing ring structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |