CN202851942U - Double-C-shaped sealing ring - Google Patents
Double-C-shaped sealing ring Download PDFInfo
- Publication number
- CN202851942U CN202851942U CN 201220602181 CN201220602181U CN202851942U CN 202851942 U CN202851942 U CN 202851942U CN 201220602181 CN201220602181 CN 201220602181 CN 201220602181 U CN201220602181 U CN 201220602181U CN 202851942 U CN202851942 U CN 202851942U
- Authority
- CN
- China
- Prior art keywords
- shaped
- double
- shaped sealing
- sealing ring
- ring
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a double-C-shaped sealing ring which comprises two superposed C-shaped sealing rings, wherein the cross sections of the C-shaped sealing rings are composed of two plate-shaped parts and curved surface parts connected between the two plate-shaped parts through connecting, and the connected plate-shaped parts of the two C-shaped sealing rings are fixed through welding; and two openings are correspondingly formed in the two curved surface parts, and are positioned in the inner sides or the outer sides of the C-shaped sealing rings. According to the double-C-shaped sealing ring provided by the utility model, the two superposed C-shaped sealing rings are welded and fixed, and then the cross section of the double-C-shaped sealing ring is 'E'-shaped or reversed 'E'-shaped; when the double-C-shaped sealing ring is used, the two curved surface parts are stretched and tightened in a stretching and sealing process so as to form two sealing strips, namely the two curved surface parts are suffered from the external force, and the external forces applied on the two curved surface part are same, so that when the single C-shaped sealing ring is prevented from suffering from tilting force in use, and the double-C-shaped sealing ring is suitable for more novel sealing ring structures.
Description
Technical field
The utility model relates to a kind of sealing tool, specifically refers to a kind of double C shape seal ring.
Background technique
The hydraulic seal element is to belong to the hydraulic pressure auxiliary in hydraulic system, but also is an indispensable part.In working pressure and certain temperature range, should have good sealability, and along with the increase of pressure can the automatic lifting high sealing performance; Frictional force between seal arrangement and the movement parts is little, and friction factor will be stablized; Anti-corrosion capacity is strong, is difficult for wearing out, and long working life, wear resistance is good, to a certain extent can auto-compensation after the wearing and tearing.The type of seal arrangement has following several: clearance seal, clearance seal are to seal by the micro-gap between the relative movement part fitting surface, are usually used in the cylindrical fit pair of plunger, piston or valve; O-ring seals, O-ring seals is generally made with oil resistant rubber, and its cross section is rounded, and it has good sealability; Lip-type packing, lip-type packing can be divided into Y shape, V-arrangement, U-shaped, L shaped etc. according to the shape in cross section; Sealer with assembled is in the sealing that pipe joint connects, commonly used to three kinds of sealing means such as WD elastic packing, O RunddichtringO and hard sealings.In mechanical seal, seal ring is two ring-shaped work piecess of end face and relative sliding bonded to each other perpendicular to spin axis, it is the main Sealing of swivel joint, bear pressure medium and running shaft, housing friction during operation, the working life of the factor appreciable impact seal rings such as temperature, rotating speed and medium.Principle of hollow metal O-ring is to bend to circle or required form with tube materials such as thin-wall copper pipe, Stainless Steel Tube, monel metals, the highi degree of accuracy annular ring that two ends form the welding polishing, its hollow-core construction is mainly used in the pressure in the adjutage, and then reaches the purpose of improving sealability.Metal hollow 0 shape circle is a kind of special Sealing, have the large characteristics of elasticity, just tighten with lower fastening force and can play seal action, it is applicable to the sealing occasion under high temperature, high pressure, ultralow temperature, high vacuum, radiation, strong acid, highly basic, oil product, oil gas etc. the working condition, is widely used in the static seal position on the various high-precision machinery such as military engineering, atomic engineering, vacuum equipment, semiconductor associated mechanical, e-machine, stirrer, melt spinning device, hydraulic machinery, reactor, pressurized container.The resilience that principle of hollow metal O-ring produces after mainly flattening by pipe seals, and its seal pressure and springback capacity are relatively low, and under high pressure easy flat wrinkle is damaged, causes sealability to lose efficacy.
The model utility content
The purpose of this utility model is to provide a kind of double C shape seal ring, improves seal pressure and springback capacity, increases its practicability, overcomes the flat wrinkle disrepair phenomenon that the O V-shaped ring causes because of high pressure.
The purpose of this utility model is achieved through the following technical solutions:
A kind of double C shape seal ring, the C V-shaped ring that comprises two stacks, the cross section of C V-shaped ring is by two plate-like portions and be connected to two curved face part between the plate-like portion and be formed by connecting, the plate-like portion that two C V-shaped rings link to each other is by being welded and fixed, two openings of two the corresponding formation of curved face part, two openings are positioned at inboard or the outside of C V-shaped ring.C V-shaped ring integral body is circular, its inside is cavity structure, inboard or the outside at annulus offer opening, two C V-shaped rings connect into integral body in the axial direction stack of annulus, the cross section integral body of C V-shaped ring is annulus or irregular annulus, forms clitellum shape after its disappearance part, comprises two plate-like portions, between plate-like portion, be connected with a curved face part, form " C " font of " C " font or retrography; After two C V-shaped ring stacks are welded and fixed, its cross section is " E " font or retrography " E " font, during use, because in the process of sealing that stretches, two curved face part are subject to the tensioning that stretches, the sealing strip of its generation is two, namely two curved face part all are subject to external force, the external force that is subject to owing to two curved face part is identical, and the tilting force that is subject in the time of can avoiding single C V-shaped ring to use is so that it is applicable to more novel seal ring structure.
Described C V-shaped ring is formed by any one tubing in nickel-base alloy, stainless steel, the monel metal or strip material bending.Further, the C V-shaped ring is made by nickel-base alloy, nickel-base alloy refers to have a class alloy of higher intensity and certain combination properties such as antioxidant anticorrosive ability under 650～1000 ℃ of high temperature, be subdivided into again Refractoloy according to main performance, abros, the nickel-base antiwear alloy, Ni-based precise alloy and Ni-based marmem etc., refractory alloy is divided into iron-base superalloy according to the difference of matrix, nickel base superalloy and cobalt base superalloy, wherein nickel base superalloy is called for short nickel-base alloy, and nickel-base alloy has corrosion-resistant, the characteristics that rebound elasticity is strong can be used in seal ring, applied environment according to reality, material as an alternative also can adopt copper, stainless steel, monel metal is made, and section bar can be tubing, also can be sheet material, when using tubing to make, need crooked first, rear welding, last opening, crooked paper tube welds again to use sheet material to need first, all can realize.
Outer surface at described C V-shaped ring coats or is electroplate with metal layer.Further, as further improvement of the utility model, the structural type of layer of metal layer is set by the outer surface at the C V-shaped ring, metal layer can adopt the mode of plating, also can adopt parcel to paste the form of paying, when the C V-shaped ring is crushed, the C V-shaped ring produces additional rebounding force, and make the metal layer generation plastic deformation of C V-shaped ring outer surface, and filled up the tiny flaw on flange seal surface, further improve its sealability.
The utility model compared with prior art has following advantage and beneficial effect:
A kind of double C shape seal ring of 1 the utility model, after two C V-shaped ring stacks are welded and fixed, its cross section is " E " font or retrography " E " font, during use, because in the process of sealing that stretches, two curved face part are subject to the tensioning that stretches, the sealing strip of its generation is two, and namely two curved face part all are subject to external force, and the external force that is subject to owing to two curved face part is identical, the tilting force that is subject in the time of can avoiding single C V-shaped ring to use is so that it is applicable to more novel seal ring structure;
A kind of double C shape seal ring of 2 the utility model, the characteristics that nickel-base alloy has is corrosion-resistant, rebound elasticity is strong can be used in seal ring, according to the applied environment of reality, material as an alternative also can adopt copper, stainless steel, monel metal to make, section bar can be tubing, also can be sheet material, when using tubing to make, need first bending, rear welding, last opening, crooked paper tube welds again to use sheet material to need first, all can realize, is easy to processing;
A kind of double C shape seal ring of 3 the utility model, the structural type of layer of metal layer is set by the outer surface at the C V-shaped ring, metal layer can adopt the mode of plating, also can adopt parcel to paste the form of paying, when the C V-shaped ring was crushed, the C V-shaped ring produced additional rebounding force, and made the metal layer generation plastic deformation of C V-shaped ring outer surface, fill up the tiny flaw on flange seal surface, further improved its sealability.
Description of drawings
Fig. 1 is that the utility model is along its axial cross-sectional structure schematic representation.
Mark and corresponding component title in the accompanying drawing:
The 1-plate-like portion, 2-curved face part, 3-metal layer.
Embodiment
The utility model is described in further detail below in conjunction with embodiment, but mode of execution of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, a kind of double C shape seal ring of the utility model, comprise two C V-shaped rings, C V-shaped ring integral body is circular, its inside is cavity structure, inboard or the outside at annulus offer opening, two C V-shaped rings connect into integral body in the axial direction stack of annulus, the cross section integral body of C V-shaped ring is annulus or irregular annulus, form clitellum shape after its disappearance part, comprise two plate-like portions 1, between plate-like portion 1, be connected with a curved face part 2, form " C " font of " C " font or retrography; After two C V-shaped ring stacks were welded and fixed, its cross section was " E " font of " E " font or retrography; Electroplate layer of metal layer 3 at the outer surface of two C V-shaped rings, metal layer 3 has certain thickness, also can be with the structural type of parcel so that metal layer 3 pastes pays on two C V-shaped ring surfaces.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, any simple modification, the equivalent variations on every foundation technical spirit of the present utility model above embodiment done all fall within the protection domain of the present utility model.
Claims (3)
1. double C shape seal ring, it is characterized in that: the C V-shaped ring that comprises two stacks, the cross section of C V-shaped ring is formed by connecting by two plate-like portions (1) and the curved face part (2) that is connected between two plate-like portions (1), the plate-like portion (1) that two C V-shaped rings link to each other is by being welded and fixed, two openings of the corresponding formation of two curved face part (2), two openings are positioned at inboard or the outside of C V-shaped ring.
2. a kind of double C shape seal ring according to claim 1, it is characterized in that: described C V-shaped ring is formed by any one tubing in nickel-base alloy, stainless steel, the monel metal or strip material bending.
3. a kind of double C shape seal ring according to claim 1 and 2 is characterized in that: the outer surface at described C V-shaped ring coats or is electroplate with metal layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602181 CN202851942U (en) | 2012-11-15 | 2012-11-15 | Double-C-shaped sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602181 CN202851942U (en) | 2012-11-15 | 2012-11-15 | Double-C-shaped sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851942U true CN202851942U (en) | 2013-04-03 |
Family
ID=47983147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602181 Expired - Lifetime CN202851942U (en) | 2012-11-15 | 2012-11-15 | Double-C-shaped sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851942U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253139A (en) * | 2017-12-20 | 2018-07-06 | 北京控制工程研究所 | A kind of highly reliable flat seal modular construction |
| CN110578844A (en) * | 2019-08-22 | 2019-12-17 | 北京航天动力研究所 | Multistage self-tightening metal sealing structure |
| CN110594504A (en) * | 2019-08-20 | 2019-12-20 | 北京航天动力研究所 | Self-tightening type composite sealing structure |
-
2012
- 2012-11-15 CN CN 201220602181 patent/CN202851942U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253139A (en) * | 2017-12-20 | 2018-07-06 | 北京控制工程研究所 | A kind of highly reliable flat seal modular construction |
| CN110594504A (en) * | 2019-08-20 | 2019-12-20 | 北京航天动力研究所 | Self-tightening type composite sealing structure |
| CN110578844A (en) * | 2019-08-22 | 2019-12-17 | 北京航天动力研究所 | Multistage self-tightening metal sealing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203717926U (en) | Sealing assembly | |
| CN202851942U (en) | Double-C-shaped sealing ring | |
| CN101095001A (en) | Metal valve stem seal and sealing system | |
| CN202371170U (en) | High pressure and low pressure resistant Y-shaped sealing ring | |
| CN202867847U (en) | Metal O-shaped sealing ring | |
| CN202851941U (en) | Large-diameter alloy O-shaped seal ring | |
| CN203335856U (en) | Combined graphite packing ring | |
| CN202646749U (en) | High-temperature high-pressure large-diameter overall forging wedged gate valve | |
| CN202852263U (en) | Alloy O-shaped sealing ring | |
| CN201794536U (en) | Wash pipe assembly of top drive drilling equipment | |
| CN102465249A (en) | High-pressure resisting hard sealing manual flat valve | |
| CN2830821Y (en) | Hard sealed ball valve | |
| CN101907085B (en) | Reciprocating type hydraulic diaphragm pump without three-way valve device | |
| CN204437284U (en) | The withstand voltage graphite annulus of a kind of high strength | |
| CN203335857U (en) | Combined wear-resisting packing ring | |
| CN203516732U (en) | Composite sealing ring of flat valve seat | |
| CN202484306U (en) | Floating oil seal | |
| CN201810531U (en) | Reciprocating type hydraulic diaphragm pump of three-valve free device | |
| CN205446795U (en) | Ball valve structure that metal is sealed firmly | |
| CN202927448U (en) | Wear-resistant concave tube for track | |
| CN211738085U (en) | High-pressure ball valve for ultrahigh-pressure hydraulic pump | |
| CN216642648U (en) | Telescopic oil cylinder | |
| CN211693591U (en) | Novel double-gate high-temperature gate valve | |
| CN210890277U (en) | Medium-pressure combined main steam valve casing steel casting | |
| CN102678926B (en) | Wear-resisting carbon packing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |