CN103644297A - Toothed composite pad with specially-shaped teeth and metal framework - Google Patents
Toothed composite pad with specially-shaped teeth and metal framework Download PDFInfo
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- CN103644297A CN103644297A CN201310661357.XA CN201310661357A CN103644297A CN 103644297 A CN103644297 A CN 103644297A CN 201310661357 A CN201310661357 A CN 201310661357A CN 103644297 A CN103644297 A CN 103644297A
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- tooth
- metal frame
- crescent
- specially
- pad
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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
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
Abstract
The invention discloses a toothed composite pad with specially-shaped teeth and a metal framework. A plurality of circles of specially-shaped teeth are concentrically distributed on the upper end face and the lower end face of the metal framework of the toothed composite pad in the radial direction, and are bent in the direction of a pressure source, and the metal framework is filled with nonmetal sealing materials in a covering mode. Compared with traditional sealing teeth, each crescent or bow-shaped specially-shaped tooth has two additional springback points and additional flexibility, stress concentration of a break point on the upper portion of each tooth and a break point on the root portion of the tooth is avoided, high bending resistance performance and high anti-fatigue performance are achieved, and the service life of the pad is prolonged. According to the design of the teeth, the semicircular top of each tooth cannot damage a flange on the situation that torsional deformation of each tooth occurs when the tooth is pressed. Due to the fact that a pressure stopping boss is designed to be arranged between every two adjacent specially-shaped teeth, the specially-shaped teeth are prevented from being damaged in a crushed mode due to overhigh pre-tightening force, and safety of sealing is ensured. Compared with the prior art, elasticity, toughness and crushing resistance of the toothed composite pad with the specially-shaped teeth and the metal framework are greatly improved, large springback force and the high pressure bearing capacity are achieved, the pad cannot be crushed, and the flange cannot be damaged.
Description
Technical field
The present invention relates to a kind of gasket seal, be specifically related to a kind of metal frame profile of tooth composite pad with heteromorphic teeth.
Background technique
(publication number is DE2437567 to tradition grooved metal gasket, title " a kind of gasket seal ") be metallic shim or the metal and nonmetal Composition spacer that has triangle pointed tooth to arrange on a kind of metal frame, triangle pointed tooth and metal frame are as a whole, generally with accurate lathe, on the two sides of flat metallic gasket, to be processed into a few 90 concentric degree angle ring gears, it is wedge angle contact with contacting of flanged surface, and grooved metal gasket can be made the Composition spacer of being with interior outer positioning ring and two sides to stick on Expanded graphite or ptfe sheet.Tradition grooved metal gasket is applicable to the operating mode of high pressure, high temperature, but also has some shortcomings: the angle of (1) 90 degree makes pressure be open, the sealing compensation power that substantially cannot utilize hydrodynamic pressure to produce; (2) the wedge angle easy damaged flanged surface of dentation; (3) triangle metal tooth self spring-back force is small, and the stationarity of flange precision and equipment working condition is had to higher requirement, is not suitable for the temperature, pressure violent operating mode that fluctuates.
Also have related documents to report a kind of metal serrated gasket, the concentric shape in two sides is provided with a plurality of inclination strip shape ring gears, and tooth is rectilinear projection, and contacting with flanged surface is the straight angle.The advantage of this grooved metal gasket is that the compression resilience of the strip shape straight-tooth of its inclination increases; The plane angle of its tooth top portion under static state can be parallel with flanged surface.Its shortcoming clearly (1) only depends on metal and flange to form the sealing of metal to metal, and sealing effect between common nonmetal sealing material and metal is far superior to the sealing between metal and metal; (2) strip shape ring gear elasticity is inadequate, and extra resilience can not be provided, and flexibility is also inadequate, and crushing resistance is poor, and easily conquassation breaks; (3) tooth root is that wedge angle formation stress is concentrated, and anti-fatigue performance is poor; (4) the metal tooth top straight angle, if when pressurized rotates, will form wedge angle with flange and contact, injury flange facing; (5) without the compressive sealed protection mechanism of secondary.Therefore rely on such helical teeth to be difficult to realize safe and reliable sealing.
For high pressure sealing, also have a kind of metal ring pad in addition, its cross section is generally octagon, ellipse, and other polygonal deriving etc.This full-metallic ring pad, although intensity is high, compression recovery performance is very low, requires flange to have the groove of special coupling, and requires flange to select harder metal material, could meet usage requirement.Even so, the long-term flange using is changed after metal ring pad, and the slight damage of flange groove also can cause seal failure, often needs again to repair flange facing.
In all above-mentioned designs, all ignore an important problem, that is: how to have prevented the problem of pad conquassation.Although the radial set collar of outer ring and tooth also have certain effect that prevents conquassation in theory, for continuously arranged tooth, the special only mechanism of pressure effect that has that obviously need to intert between continuous tooth; The height of this only press system should have clear and definite differentiation with common tooth and the height of positioning ring, if too high, can affect elasticity, the too low effect that does not prevent conquassation.
Summary of the invention
The invention provides a kind ofly in elasticity, toughness, crushing resistance, all have a kind of metal frame profile of tooth composite pad with heteromorphic teeth of very big raising.This pad can solve the problem that above-mentioned conventional spacers exists, and has essential difference with it, has higher spring-back force and pressure bearing capacity, and can conquassation, does not hinder flange.
The present invention has adopted following technological scheme:
A kind of metal frame profile of tooth composite pad with heteromorphic teeth, comprise metal frame and nonmetal sealing material with dentation, the multi-turn that radially distributes with one heart of metal frame upper and lower end face is to the crescent tooth of pressure source direction bending, and the root width of crescent tooth is greater than its upper width; Nonmetal sealing material is in conjunction with being arranged on metal frame; If come in contact in the situation that nonmetal sealing material is extruded between crescent tooth and flange contact facings, both surface of contact are semi circular surface.
Another technological scheme is:
A kind of metal frame profile of tooth composite pad with heteromorphic teeth, comprise metal frame and nonmetal sealing material with dentation, the multi-turn that radially distributes with one heart of metal frame upper and lower end face is to the tortuous bow shape tooth of pressure source direction bending, and the cross-sectional width of tortuous bow shape tooth is consistent; Nonmetal sealing material is in conjunction with being arranged on metal frame, if come in contact in the situation that nonmetal sealing material is extruded between tortuous bow shape tooth and flange contact facings, both surface of contact are semi circular surface.
Further, metal frame upper and lower end face radially, be provided with only belling platform with crescent tooth or tortuous bow shape tooth with one heart; Only the height of belling platform is the 30%-80% of adjacent teeth height, and higher than metal frame body, if when pad outside is provided with positioning ring, only the height of belling platform is also simultaneously higher than the height of positioning ring; The described only top of belling platform is non-wedge angle, and only belling platform does not tilt.
Wherein, crescent tooth or tortuous bow tooth are generally crooked towards the direction of pressure source, but bending direction in concrete application is not subject to design restriction.Crescent tooth or tortuous bow tooth top portion are semi circular surface towards the surface of contact of flange, this semi circular surface plays three effects: metal-toothed self elasticity extra radian elasticity is in addition provided, extra resistance to compression flexibility is provided, and in the situation that pressurized rotates, still keeps contacting with the non-wedge angle of flanged surface.Crescent tooth or tortuous bow tooth are also semi circular surface towards the inner side root of pressure source direction and the junction surface of metal frame basal plane, and this semi circular surface also provides additional flexibility and the flexibility beyond skeleton.The tip part of crescent tooth or tortuous bow tooth can be that sharp comer can be also fillet.
Only belling platform is non-wedge angle with flange contact facings, and its center line is vertical with anchor ring, that is to say, stopping belling platform can be similar square or ladder type, still should be to any lopsidedness, and this reason is support pressure to greatest extent only in this way.In design, must stop belling platform and the difference of common sealing tooth is come, only the height of belling platform must be significantly less than other sealing tooth, should other seal tooth height 30%～80%; The general only design of belling platform is each, or two, or three, but no more than three sealing teeth, just should intert one stop belling platform.In a kind of special design, if because sealing tooth seldom, thereby when only the design of belling platform is on the radial set collar at inner circle or cylindrical, only belling platform should form convex on inside and outside ring, height of projection too tooth height 30%～80% between.
Upper and lower end face at metal frame can respectively cover the nonmetal sealing materials such as graphite, teflon, forms nonmetal and sealing effect metal between metal and metal.Described nonmetal sealing material can not only be filled between metal-toothed, and as nonmetal sealing layer, covers on sealing tooth simultaneously; Also can only be filled between metal-toothed, or only cover on sealing tooth.
The present invention has the following advantages:
(1) in order to have solved the helical teeth of straight line or straight-tooth without extra rebound elasticity, the shortcoming of easy embrittlement, crescent tooth of the present invention or tortuous bow tooth provide two semi circular surface designs of tooth top portion and root inner side: these two semi circular surfaces provide tooth self elasticity extra two resilience points in addition with extra flexible, during pressurized, its crooked tooth arm is compared lineal shape tooth arm can disperse more stress, avoid the stress of top and two breaks of root to concentrate and caused surrender, there is good anti-fatigue performance.
(2) crescent tooth or tortuous bow tooth and flange contact facings are semi circular surface, the pressurized distortion that twists, surface of contact is along semicircle roll displacement, even in the situation that the nonmetal sealing medium of centre be extruded, do not damage flange, avoid forming wedge angle damage flange after straight angle rotation yet.
(3) three semi circular surfaces of the back of tooth and both sides tooth root form three resilience points, compare other straight-tooth, helical teeth, rake tooth etc., can obtain higher resilience.
(4) crescent tooth cross section is low wide and up narrow, compares the consistent design of upper and lower width, is conducive to improve tooth tip elastic deformability, strengthens the anti-surrender ability of tooth root, improves pad resilience simultaneously, improves its fatigue resistance, has extended the working life of pad.
(5) after crescent tooth or tortuous bow tooth pressurized, the tooth tip can with the adjacent teeth back of tooth or only belling platform contact formation arch-shaped, obtain extra support force, and can form continuous sealing surface, pad compression recovery performance for the second time is further provided; Prevent from rupturing and subsideing in trench gap after nonmetal sealing layer pressurized that tooth covers above simultaneously, destroy nonmetal sealing surfaces, affect sealing effect.
(6) multi-turn crescent tooth or tortuous bow tooth form a plurality of semiclosed resistance to compression cavitys towards pressure source opening, and making can step pressure reducing from the pressure of pressure source; And this crooked tooth inner chamber body utilizes hydrodynamic pressure, there is the trend that crooked tooth arm is opened, pad compression recovery performance is for the third time provided; Make tooth top and flange facing laminating tightr, produce effective sealing compensation power, improve the reliability of sealing.
(7) checking by experiment, only belling platform height design lower than 80% tooth depth can guarantee that crescent tooth or tortuous bow tooth obtain enough seal compression resiliences, and can guarantee that higher than the only belling platform height design of 30% tooth depth crescent tooth or tortuous bow tooth can not cause because of excessive pretightening force conquassation to damage, lose resilience sealability, the Security of strong assurance gasket seal.
(8) multi-turn is stopped belling platform cross-distribution in tooth, and in the time of can guaranteeing that extraneous flange facing injustice or preload pressure are uneven, every circle tooth can both uniform stressed, obtains protectiveness and supports, and can not damage, and pad can be reused.
(9) multi-turn is stopped belling platform cross-distribution in tooth, is being subject to excessive pretightening force, when crooked tooth has flattened, contacts form second line of seal with flange facing, and the extra compressive sealed protection mechanism of secondary is provided.
In sum, the present invention combines by above-mentioned different inventive point, compares with existing public technology, realized that a kind of pressure-strain sexuality greatly promotes metal frame profile of tooth composite pad.
Accompanying drawing explanation
Fig. 1 is the skeletal structure schematic diagram of existing grooved metal gasket.
Fig. 2 is the composite pad schematic cross-section that stops belling platform and crescent tooth employing 1+1+1+1+1+1 mode combined crosswise.
Fig. 3 is the composite pad stereogram that stops belling platform and crescent tooth employing 1+1+1+1+1+1 mode combined crosswise.
Fig. 4 is the composite pad stereogram that stops belling platform and tortuous bow tooth employing 1+1+1+1+1+1 mode combined crosswise.
Fig. 5 is that crescent tooth oppositely distributes also and stops the composite pad schematic cross-section of belling platform combined crosswise.
Fig. 6 is crescent tooth and stops the composite pad schematic cross-section that belling platform adopts 1+1+2+1+3 mode combined crosswise.
Fig. 7 is the composite pad schematic cross-section that belling platform and crescent tooth adopt 1+2+1+2 mode combined crosswise.
Fig. 8 is the composite pad schematic cross-section that stops belling platform and crescent tooth employing 1+3 mode combined crosswise.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
First, in order to have solved the helical teeth of straight line or straight-tooth without extra rebound elasticity, the shortcoming of easy embrittlement, the invention provides two semi circular surface designs of tooth top portion and root inner side: these two semi circular surfaces provide tooth self elasticity extra two resilience points in addition with extra flexible, have avoided the stress of top and two breaks of root to concentrate.And relative and wedge angle, or the top of the straight angle, semi-circular top design of the present invention, in the situation that pressurized twists distortion, does not still damage flange.Secondly, design feature as a supplement, the low wide and up narrow Cross section Design of crescent tooth disclosed by the invention, makes tooth have higher elasticity and anti-surrender anti-fatigue performance, has significantly improved the working life of pad.Again, as another one complementary design feature, the present invention has designed the only belling platform that a kind of height is starkly lower than sealing tooth, after crescent tooth or tortuous bow tooth pressurized, preventing from sealing tooth causes conquassation to damage because of excessive pretightening force, lose resilience sealability, thus the Security of strong assurance gasket seal.
Different from the existing triangle wedge angle of Fig. 1 grooved metal gasket, as shown in Figure 2 and Figure 3, metallic shim skeleton upper and lower end face radially with one heart by metalworking technology turning and crookedly go out multi-turn crescent tooth and the combined crosswise of belling platform only, as a whole and and and the parallel flange of metal frame and tooth.The crescent tooth 1 of pad of the present invention is crooked towards the direction of pressure source, and crescent tooth cross section root width is greater than upper width.Crescent tooth 1 is semi circular surface with the surface of contact 2 of flange facing, and the root 3 of crescent tooth 1 inner side is also semi circular surface with the junction surface of skeleton basal plane, and the tooth tip is half fillet.An only belling platform 4 is set in the middle of every two crescent teeth 1, and only belling platform 4 and crescent tooth 1 adopt 1+1+1+1+1+1 mode combined crosswise.Only belling platform 4 is plane with flange contact facings, and its center line is vertical with anchor ring.The only belling platform 4 in outside protrudes from outer positioning ring 5.Between the upper and lower end face of metal frame and tooth, all cover flexible graphite material 6, formed Composition spacer.
As shown in Figure 4, multi-turn tortuous bow tooth and only belling platform cross arrangement, only belling platform and facewidth degree tortuous bow tooth unanimous between the higher and lower levels adopts 1+1+1+1+1+1 mode combined crosswise.
As shown in Figure 5, crescent tooth oppositely distribute and and belling platform combined crosswise only, the tooth tip adopts pointed design, only belling platform is low wide and up narrow, to meet the needs of outside two way sealed in particular pressure equipment.The upper and lower end face of metal frame has respectively covered flexible graphite gasket, forms Composition spacer.
As shown in Fig. 6, Fig. 7, Fig. 8, crescent tooth and only belling platform be combined crosswise in many ways, and to meet the needs of different size and different pressures grade pad, the tip part of crescent tooth is fillet.Fig. 6 has shown when nonmetal sealing layer is extruded, and is semi circular surface between crescent tooth and flange contact facings.Fig. 7 and Fig. 8 have shown the situation of the full backlash of nonmetal sealing material filling.
Crescent tooth of the present invention or tortuous bow tooth are crooked towards the direction of pressure source, can make full use of hydrodynamic pressure and form effective sealing compensation power.Crescent tooth or tortuous bow tooth and flange contact facings are semi circular surface, and the pressurized distortion that twists, does not damage flange.Its crooked tooth arm of crescent tooth or tortuous bow tooth can disperse more stress, and inside and outside both sides tooth root portion semi circular surface, and non-wedge angle is avoided stress to concentrate and caused surrender.The low wide and up narrow Cross section Design of crescent tooth, has good anti-fatigue performance.Three semi circular surfaces of the back of tooth and both sides tooth root form three resilience points, thereby obtain higher resilience.After tooth pressurized, the tooth tip can or stop belling platform with adjacent teeth and contact formation arch support and continuous sealing face, has improved resilience; After the nonmetal sealing layer pressurized that simultaneously prevents from covering, fall into trench gap above, affect sealing effect.In crescent tooth or tortuous bow tooth, the only belling platform of cross-distribution, guarantees that tooth obtains enough seal compression resiliences, and can not cause because of excessive pretightening force conquassation to damage, and loses resilience sealability, guarantees the Security of gasket seal.And can be subject to excessive pretightening force, and when crooked tooth has flattened, contact with flange facing and form second line of seal, the extra compressive sealed protection mechanism of secondary is provided.
In addition, when using metal frame profile of tooth Composition spacer of the present invention, the nonmetallic material of metal ring top and bottom contact with seal element, can strengthen sealing effect, reduce wear rate, when clearing up, change or re-cover metallic shim, only the graphite on metal serrated gasket need be changed, this metal serrated gasket can continue to use simultaneously, improve utilization efficiency, reduced industrial application cost.
Claims (6)
1. a metal frame profile of tooth composite pad with heteromorphic teeth, comprise metal frame and nonmetal sealing material with dentation, it is characterized in that, the multi-turn that radially distributes with one heart of metal frame upper and lower end face is to the crescent tooth of pressure source direction bending, and the root width of crescent tooth is greater than its upper width; Nonmetal sealing material is in conjunction with being arranged on metal frame; If come in contact in the situation that nonmetal sealing material is extruded between crescent tooth and flange contact facings, both surface of contact are semi circular surface.
2. a metal frame profile of tooth composite pad with heteromorphic teeth, comprise metal frame and nonmetal sealing material with dentation, it is characterized in that, the multi-turn that radially distributes with one heart of metal frame upper and lower end face is to the tortuous bow shape tooth of pressure source direction bending, and the cross-sectional width of tortuous bow shape tooth is consistent; Nonmetal sealing material is in conjunction with being arranged on metal frame, if come in contact in the situation that nonmetal sealing material is extruded between tortuous bow shape tooth and flange contact facings, both surface of contact are semi circular surface.
3. a kind of metal frame profile of tooth composite pad with heteromorphic teeth according to claim 1 and 2, is characterized in that, metal frame upper and lower end face radially, be provided with only belling platform with crescent tooth or tortuous bow shape tooth with one heart; Only the height of belling platform is the 30%-80% of adjacent teeth height, and higher than metal frame body, if when pad outside is provided with positioning ring, only the height of belling platform is also simultaneously higher than the height of positioning ring; The described only top of belling platform is non-wedge angle, and only belling platform does not tilt.
4. a kind of metal frame profile of tooth composite pad with heteromorphic teeth according to claim 1 and 2, is characterized in that, described crescent tooth or tortuous bow shape tooth are semi circular surface towards the inner side root of pressure source direction and the junction surface of metal frame basal plane.
5. a kind of metal frame profile of tooth composite pad with heteromorphic teeth according to claim 3, it is characterized in that, described only belling platform interts between the sealing tooth of crescent tooth or tortuous bow shape tooth, and is no more than at most three sealing teeth and should interts an only belling platform is set.
6. a kind of metal frame profile of tooth composite pad with heteromorphic teeth according to claim 1 and 2, it is characterized in that, described nonmetal sealing material is filled between the sealing tooth of metal frame or integral body covers on sealing tooth and forms nonmetal sealing layer, or the two has.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661357.XA CN103644297B (en) | 2013-12-06 | 2013-12-06 | A kind of metal frame profile of tooth composite pad with heteromorphic teeth |
| PCT/CN2014/070247 WO2015081616A1 (en) | 2013-12-06 | 2014-01-07 | Toothed metal framework composite gasket having irregular teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661357.XA CN103644297B (en) | 2013-12-06 | 2013-12-06 | A kind of metal frame profile of tooth composite pad with heteromorphic teeth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103644297A true CN103644297A (en) | 2014-03-19 |
| CN103644297B CN103644297B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310661357.XA Active CN103644297B (en) | 2013-12-06 | 2013-12-06 | A kind of metal frame profile of tooth composite pad with heteromorphic teeth |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103644297B (en) |
| WO (1) | WO2015081616A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154229A (en) * | 2014-07-09 | 2014-11-19 | 镇江春环密封件集团有限公司 | Novel sealing gasket |
| WO2015081617A1 (en) * | 2013-12-06 | 2015-06-11 | 艾志（南京）环保管接技术股份有限公司 | Toothed metal gasket with alternating pressure-prevention steps |
| CN112443002A (en) * | 2019-08-30 | 2021-03-05 | 卡特彼勒公司 | Seal assembly for a levelling machine |
| CN113124159A (en) * | 2021-04-19 | 2021-07-16 | 大庆隆锋机械设备制造有限公司 | Metal packing seal ring gasket |
| US20220228663A1 (en) * | 2021-01-15 | 2022-07-21 | Environmental Gasket Company, Ltd. | Toothed metallic gasket interpenetrated with compression-resistant steps |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03209067A (en) * | 1990-01-10 | 1991-09-12 | Eagle Ind Co Ltd | Saw-teeth form metal gasket and its manufacture |
| GB2286861A (en) * | 1994-02-22 | 1995-08-30 | T & N Technology Ltd | Gasket |
| JP2000193090A (en) * | 1998-12-24 | 2000-07-14 | Daiwa Kasei Ind Co Ltd | Waterproofing packing |
| DE4139453C2 (en) * | 1990-11-30 | 2001-08-30 | Alfred H Jung | Sealing arrangement for a flange connection |
| EP2226544A1 (en) * | 2009-03-07 | 2010-09-08 | Kempchen Dichtungstechnik GmbH | Sealing ring with serrated profile |
| CN201924438U (en) * | 2011-01-19 | 2011-08-10 | 厦门市鹭声橡塑有限公司 | Fishbone-shaped seal ring for drainage pipe of water closet |
| CN101625027B (en) * | 2008-07-11 | 2011-12-21 | 株式会社山武 | Metal seal washer and regulation valve |
| CN103062541A (en) * | 2013-01-29 | 2013-04-24 | 艾志（南京）环保管接技术股份有限公司 | Metal gasket with fishbone-shaped section and inclined teeth |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526606Y (en) * | 2002-03-08 | 2002-12-18 | 石油大学(华东) | Trapezoidal wave tooth spacer |
| JP4877673B2 (en) * | 2007-04-12 | 2012-02-15 | 日本バルカー工業株式会社 | Serrated gasket with sheet layer |
| DE202011100506U1 (en) * | 2010-06-21 | 2011-07-13 | Alfred Jung | Seal for flange connection |
| CN203067774U (en) * | 2013-01-29 | 2013-07-17 | 艾志（南京）环保管接技术股份有限公司 | Fishbone helical tooth-shaped metallic gasket |
-
2013
- 2013-12-06 CN CN201310661357.XA patent/CN103644297B/en active Active
-
2014
- 2014-01-07 WO PCT/CN2014/070247 patent/WO2015081616A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03209067A (en) * | 1990-01-10 | 1991-09-12 | Eagle Ind Co Ltd | Saw-teeth form metal gasket and its manufacture |
| DE4139453C2 (en) * | 1990-11-30 | 2001-08-30 | Alfred H Jung | Sealing arrangement for a flange connection |
| GB2286861A (en) * | 1994-02-22 | 1995-08-30 | T & N Technology Ltd | Gasket |
| JP2000193090A (en) * | 1998-12-24 | 2000-07-14 | Daiwa Kasei Ind Co Ltd | Waterproofing packing |
| CN101625027B (en) * | 2008-07-11 | 2011-12-21 | 株式会社山武 | Metal seal washer and regulation valve |
| EP2226544A1 (en) * | 2009-03-07 | 2010-09-08 | Kempchen Dichtungstechnik GmbH | Sealing ring with serrated profile |
| CN201924438U (en) * | 2011-01-19 | 2011-08-10 | 厦门市鹭声橡塑有限公司 | Fishbone-shaped seal ring for drainage pipe of water closet |
| CN103062541A (en) * | 2013-01-29 | 2013-04-24 | 艾志（南京）环保管接技术股份有限公司 | Metal gasket with fishbone-shaped section and inclined teeth |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081617A1 (en) * | 2013-12-06 | 2015-06-11 | 艾志（南京）环保管接技术股份有限公司 | Toothed metal gasket with alternating pressure-prevention steps |
| CN104154229A (en) * | 2014-07-09 | 2014-11-19 | 镇江春环密封件集团有限公司 | Novel sealing gasket |
| CN112443002A (en) * | 2019-08-30 | 2021-03-05 | 卡特彼勒公司 | Seal assembly for a levelling machine |
| CN112443002B (en) * | 2019-08-30 | 2024-04-26 | 卡特彼勒公司 | Sealing assembly for a levelling machine |
| US20220228663A1 (en) * | 2021-01-15 | 2022-07-21 | Environmental Gasket Company, Ltd. | Toothed metallic gasket interpenetrated with compression-resistant steps |
| US11725731B2 (en) * | 2021-01-15 | 2023-08-15 | Environmental Gasket Company, Ltd. | Toothed metallic gasket interpenetrated with compression-resistant steps |
| CN113124159A (en) * | 2021-04-19 | 2021-07-16 | 大庆隆锋机械设备制造有限公司 | Metal packing seal ring gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103644297B (en) | 2015-12-02 |
| WO2015081616A1 (en) | 2015-06-11 |
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