CN2934855Y - Seal-ring dedicated for steel frame plastic composite tube - Google Patents
Seal-ring dedicated for steel frame plastic composite tube Download PDFInfo
- Publication number
- CN2934855Y CN2934855Y CN 200620118274 CN200620118274U CN2934855Y CN 2934855 Y CN2934855 Y CN 2934855Y CN 200620118274 CN200620118274 CN 200620118274 CN 200620118274 U CN200620118274 U CN 200620118274U CN 2934855 Y CN2934855 Y CN 2934855Y
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- face
- ring
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- oval
- shape
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- Expired - Lifetime
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Abstract
A special sealing ring of the steel skeleton plastic composite pipe includes a body; the device is characterized in that the body is a ring-shaped circle; the center of the body is provided with a strengthening skeleton; the cross section of the ring-shaped circle of the body is made by connecting the ''O'' shape surface and the elliptical surface; the extending line of the longer axis of the elliptical surface passes orderly through the center of the ''O'' shaped surface and the center of the ring-shaped circle of the body. The sealing ring is made of the metal skeleton; when the bolt pre-presses the load to exert the flange to press the gasket piece, the gasket piece will not be dislocated or deformed; moreover, the device is a special geometric surface shape by mutually compounding the ''0'' shaped surface and the elliptical surface, which has the double sealing effects and effectively prevents the leakage of the alternating flow carrier medium.
Description
Affiliated technical field
The utility model relates to a kind of Steel Skeleton double seal rubber sheet gasket that prevents the current-carrying dielectric leakage when steel skeleton plastic clad pipe and part nonmetallic pipe flange connect, more particularly a kind of steel skeleton plastic clad pipe special sealing ring of being exclusively used in.
Background technique
At present, the common flange of steel skeleton plastic clad pipe connects uses rubber sheet gasketing, and there is following problem in it: 1, exoskeletal.When bolt load under pretension condition imposed on flange with the pressure pad sheet, the pad deformation plance that can misplace caused sealing contact shape face structure unbalanced, and shape face bearing pressure is too small to occur leakage to the current-carrying medium because of part seals at the three-dimensional reorientation pressure at flange end angle.2, sealing shape face structure is single, can't resist the carrier fluid medium and turn to pressure and load pretightening force under three dimensional space, thereby occur leaking.3, because exoskeletal, after long-term the use, three-dimensional pressure and the load pretightening force of turning to of current-carrying medium can make gasket seal geometric form face generation gross distortion face, and bullet, plastic deformation face weaken, the depressurization effect.
Summary of the invention
The purpose of this utility model is: a kind of steel skeleton plastic clad pipe special sealing ring is provided, it can be according to the characteristic and the rigidity deformation plance of nonmetallic pipe, the special operation condition condition that is different from metal tube that creep resilience in the deformation plance process is produced, needs with the alternating download flow medium, the sealing circle adopts metal frame, when bolt load under pretension condition imposes on flange with the pressure pad sheet, dislocation or deformation plance can not take place in pad, and it is that the special geometric shape that mutually combined by " 0 " type and oval sealing shape face is planar, and the effect that has played double seal effectively stops the alternating download flow medium to leak.
The utility model is achieved in that a kind of steel skeleton plastic clad pipe special sealing ring comprises: the described body of body is an annular ring, in the body center portion enhancing skeleton is set, the cross section of described body annular ring by " O " shape face and oval face be formed by connecting, the major axis elongation line of described oval face successively by " O " center of shape face and the center of body annular ring.
The cross section of described body annular ring by interior for " O " the shape face is formed by connecting for the slyness of oval face by circular arc with outer.
Described " O " the shape face is rounded face or the oval face that stands up or the arc shaped surface of combination.
The enhancing skeleton of described body is arranged on the central part of oval face.
The utility model is rational in infrastructure, its the creep resilience in the deformation plance process is produced according to nonmetallic pipe special operation condition condition that is different from metal tube, needs with the alternating download flow medium, the sealing circle adopts metal frame, when bolt load under pretension condition imposed on flange with compress gasket, dislocation or deformation plance can not take place in pad, and it is planar with the special geometric shape that oval sealing shape face mutually combines by " O " type, play the effect of double seal, effectively stoped the alternating download flow medium to leak.It can carry bigger alternation fluid-load.After the release, the bullet of rubber, plastic deformation face change less, can reuse, thereby, reduce cost.
Below in conjunction with drawings and Examples the utility model is further specified.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that Fig. 1 cuts open shape face enlarged diagram.
Concrete implementing method
" the steel skeleton plastic clad pipe special sealing ring of O type circle mouth; its structure as shown in Figure 1: comprising: body 1; described body 1 is an annular ring; the shape face that cuts of described body 1 by " O " shape face 101 is formed by connecting with oval face 102, the major axis elongation line of described oval face 102 successively by " O " center of shape face 101 and the center of body 1 annular ring.
The shape face that cuts of described body 1 by interior for " O " shape face 101 is formed by connecting for the slyness of oval face 102 by circular arc with outer.
Described " O " shape face 101 is rounded face or the oval face that stands up or the arc shaped surface of combination.
The enhancing skeleton 2 of described body 1 is arranged on the central part of oval face 102.
Described enhancing skeleton 2 adopts metallic material, and body 1 adopts oil resistant butadiene-acrylonitrile rubber school, forms through special proportioning hot moulding.
In use, " O " type circle mouth is contact seal shape face at first, plays the effect of first resealing, and double seal is carried out in the contact of oval subsequently sealing shape face.Steel Skeleton play supporting role, when the steel skeleton plastic clad pipe current-carrying, produce deformation plance, hot swollen account, cold contraction, unexpected vibration, when alternating pressure load causes pipe flange face relative tilt to separate, " O " type circle mouth three dimensional space all with " O " cylindroid contends with, jet is invaded along flange shape face in the barrier tube, prevent that the cushion rubber deformation plance is excessive, cause the cushion rubber distortion.The sealing circle is because the existence of metal frame, when bolt load under pretension condition imposes on flange with the pressure pad sheet, dislocation or distortion can not take place in pad, and, played that the effect of double seal is effectively cloudy ends the alternating download flow medium and leak by the special geometry that " O " type circle and oval circle sealing shape face mutually combine.It can carry bigger alternation fluid-load.After the release, the bullet of rubber, plastic deformation face change less, can reuse, thereby, reduce cost.
Claims (4)
1, a kind of steel skeleton plastic clad pipe special sealing ring, comprise: body (1), it is characterized in that: described body (1) is an annular ring, enhancing skeleton (2) is set in body (1) center portion, the cross section of described body (1) annular ring by " O " shape face (101) and oval face (102) be formed by connecting, the major axis elongation line of described oval face (102) successively by " O " center of shape face (101) and the center of body (1) annular ring.
2, steel skeleton plastic clad pipe special sealing ring as claimed in claim 1 is characterized in that: the cross section of described body (1) annular ring by interior for " O " shape face (101) is formed by connecting for the slyness of oval face (102) by circular arc with outer.
3, steel skeleton plastic clad pipe special sealing ring as claimed in claim 1 or 2 is characterized in that: described " O " shape face (101) is rounded face or the oval face that stands up or the arc shaped surface of combination.
4, steel skeleton plastic clad pipe special sealing ring as claimed in claim 1 or 2 is characterized in that: the enhancing skeleton (2) of described body (1) is arranged on the central part of oval face (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620118274 CN2934855Y (en) | 2006-06-06 | 2006-06-06 | Seal-ring dedicated for steel frame plastic composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620118274 CN2934855Y (en) | 2006-06-06 | 2006-06-06 | Seal-ring dedicated for steel frame plastic composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2934855Y true CN2934855Y (en) | 2007-08-15 |
Family
ID=38351544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620118274 Expired - Lifetime CN2934855Y (en) | 2006-06-06 | 2006-06-06 | Seal-ring dedicated for steel frame plastic composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2934855Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058946A1 (en) * | 2010-11-05 | 2012-05-10 | 上海闰铭精密技术有限公司 | Composite seal ring for filtration and separation |
| EP3321546A1 (en) * | 2016-11-11 | 2018-05-16 | Klinger AG | Sealing ring made of elastomeric material with reinforced insert |
-
2006
- 2006-06-06 CN CN 200620118274 patent/CN2934855Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058946A1 (en) * | 2010-11-05 | 2012-05-10 | 上海闰铭精密技术有限公司 | Composite seal ring for filtration and separation |
| EP3321546A1 (en) * | 2016-11-11 | 2018-05-16 | Klinger AG | Sealing ring made of elastomeric material with reinforced insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070815 |
|
| EXPY | Termination of patent right or utility model |