CN216242265U - Novel combined seal - Google Patents
Novel combined seal Download PDFInfo
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- CN216242265U CN216242265U CN202122804946.1U CN202122804946U CN216242265U CN 216242265 U CN216242265 U CN 216242265U CN 202122804946 U CN202122804946 U CN 202122804946U CN 216242265 U CN216242265 U CN 216242265U
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Abstract
The utility model relates to the technical field of sealing assemblies, in particular to a novel combined seal, which comprises a sealing elastic ring and a sealing sliding ring, wherein a groove is arranged on the outer side of the sealing sliding ring, a sealing lip is arranged on the inner side of the sealing sliding ring, and the cross section of the groove sequentially comprises a first arc part, a first inclined part of the groove, a second arc part, a horizontal part of the groove, a third arc part, a second inclined part of the groove, a fourth arc part, a vertical part of the groove, a fifth arc part and a sixth arc part from left to right; the section of the sealing lip sequentially comprises a first inclined part of the sealing lip, a horizontal part of the sealing lip and a second inclined part of the sealing lip from left to right; the circle center of the section of the sealing elastic ring is positioned above the horizontal part of the sealing lip. The groove design of the utility model is more fit with the combination of the sealing elastic ring, the deformation of the first inclined part and the second inclined part of the sealing lip can be reduced, the installation is easier, and the possibility of damaging the sealing element due to the installation is reduced.
Description
Technical Field
The utility model relates to the technical field of sealing components, in particular to a novel combined seal.
Background
The utility model patent for CN2117508 discloses a right angle slip ring formula combination seal, its sealing ring is the thin lip of straight form, and structure self lacks the installation guide chamfer, very easily leads to the installation to damage, and the sealed radial force dispersion of straight form lip, and consequently the leakage quantity is great. Under the working conditions of poor lubricating conditions, poor roughness of the sealing surface and the like, the thin lip slip ring is worn quickly, so that the sealing is quickly failed.
Therefore, how to overcome the above technical problems and disadvantages is a problem to be solved.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a novel composite seal to solve the problems set forth above in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel combined seal, includes sealed elastic ring and sealed sliding ring, the sealed sliding ring outside sets up left protruding edge, right protruding edge and is located the left protruding edge and the right protruding slot between following, and the sealed sliding ring inboard is equipped with seal lip, its characterized in that: the cross section of the groove sequentially comprises a first arc part, a first inclined part, a second arc part, a horizontal part, a third arc part, a second inclined part, a fourth arc part, a vertical part, a fifth arc part and a sixth arc part from left to right; the section of the sealing lip sequentially comprises a first inclined part of the sealing lip, a horizontal part of the sealing lip and a second inclined part of the sealing lip from left to right.
Further, the circle center of the cross section of the sealing elastic ring is located above the horizontal part of the sealing lip.
Further, the circle center of the section of the sealing elastic ring is close to or positioned right above the middle of the horizontal part of the sealing lip.
Furthermore, the width of the left convex edge is 0.1-0.6mm, the radius of the first arc part, the radius of the second arc part, the radius of the third arc part and the radius of the sixth arc part are respectively 1-5mm, the radius of the fourth arc part is 0.25 times of the section line diameter of the sealing elastic ring, the radius of the fifth arc part is 0.5 times of the section line diameter of the sealing elastic ring, the inclination angle of the first inclined part is 10-30 degrees, and the inclination angle of the second inclined part of the groove is 10-30 degrees;
the width of the horizontal part of the sealing lip is 0.5-5mm, the inclination angle c of the first inclined part of the sealing lip is 5-40 degrees, the inclination angle d of the second inclined part of the sealing lip is 5-30 degrees, the distance between the horizontal part of the groove and the horizontal part of the sealing lip is 0.5-5mm, and the thickness of the sealing lip is 0.2-0.5 times of the distance between the horizontal part of the groove and the horizontal part of the sealing lip.
Compared with the prior art, the utility model has the beneficial effects that:
according to the novel combined seal, the internal structure of the groove is improved, the wrapping performance of the groove part on the elastic seal ring is stronger, and the problem that the posture of the elastic seal ring is changed in the installation process and the dynamic seal state is solved. In addition, the resilience force of the elastic sealing ring acts on the upper part of the sealing lip, so that the utility model has the advantages of good sealing performance, high pressure resistance and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a sealing slip ring of the present invention;
FIG. 3 is a schematic diagram illustrating parameter labeling of various parts of the sealing slip ring according to the present invention;
fig. 4 is a schematic structural diagram of the use state of the present invention.
Description of the main element symbols:
1-sealing elastic ring, 2-sealing slip ring, 3-first arc portion, 4-groove first inclined portion, 5-second arc portion, 6-groove horizontal portion, 7-third arc portion, 8-groove second inclined portion, 9-fourth arc portion, 10-groove vertical portion, 11-fifth arc portion, 12-sixth arc portion, 13-sealing lip first inclined portion, 14-sealing lip horizontal portion, 15-sealing lip second inclined portion, 16-left ledge, 17-part to be sealed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a novel combined seal, includes sealed elastic ring 1 and sealed sliding ring 2, sealed sliding ring 2 outside sets up left protruding edge 16, right side protruding edge and is located the protruding slot between following of left side and right side, and the slot cross-section includes first circular arc portion 3, the first rake 4 of slot, second circular arc portion 5, slot horizontal part 6, third circular arc portion 7, slot second rake 8, fourth circular arc portion 9, the vertical portion 10 of slot, fifth circular arc portion 11 and sixth circular arc portion 12 according to the preface from left to right.
The inner side of the sealing slip ring 2 is provided with a sealing lip, and the section of the sealing lip sequentially comprises a first inclined part 13 of the sealing lip, a horizontal part 14 of the sealing lip and a second inclined part 15 of the sealing lip from left to right.
The center of the cross section of the sealing elastic ring 1 is located above the sealing lip horizontal portion 14, and preferably, the center of the cross section of the sealing elastic ring 1 is located directly above the middle of the sealing lip horizontal portion 14.
The cross-sectional line diameter of the sealing elastic ring 1 is defined as d0, the width l 5 of the left convex edge 16 is 0.1-0.6mm, the radius r1 of the first circular arc part 3, the radius r2 of the second circular arc part 5, the radius r3 of the third circular arc part 7 and the radius r6 of the sixth circular arc part 12 are respectively 1-5mm, the radius r4 of the fourth circular arc part 9 is 0.25 x d0, the radius r5 of the fifth circular arc part 11 is 0.5 x d0, the inclination angle a of the first inclined part 4 of the groove is 10-30 degrees, and the inclination angle b of the second inclined part 8 of the groove is 10-30 degrees;
the width l 1 of the horizontal part 14 of the sealing lip is 0.5-5mm, the inclination angle c of the first inclined part 13 of the sealing lip is 5-40 degrees, the inclination angle d of the second inclined part 15 of the sealing lip is 5-30 degrees, the distance between the horizontal part 6 of the groove and the horizontal part 14 of the sealing lip is 0.5-5mm, and the thickness l4 of the sealing lip is (0.2-0.5) delta.
The sealing elastic ring 1 is an O-shaped ring, the sealing sliding ring 2 is made of polytetrafluoroethylene and reinforced materials thereof, and materials such as polyurethane, rubber and the like can also be used.
When the sealing device is used, the sealing elastic ring has certain elastic force, so that the sealing sliding ring keeps radial acting force constantly, the center of the sealing elastic ring is close to the middle of the sealing lip, the elastic force generated by the compression of the elastic ring acts on the middle of the lip, and the maximum sealing performance is ensured. The sealing elastic ring and the groove second inclined part form elastic extrusion, and the reaction force of the groove second inclined part to the sealing elastic ring is decomposed into downward force which acts on the sealing lip, so that the sealing performance is further improved. The sealing elastic ring is simultaneously surrounded by the groove first inclined part and the groove second inclined part and is supported by the groove horizontal part, and the structure is very stable.
Referring to fig. 4, arrows in the drawing indicate hydraulic oil pressure direction, the left convex edge, the fifth arc portion, the first arc portion, the second arc portion, the third arc portion, the fourth arc portion, the sixth arc portion and the sealing elastic ring are combined more properly, the acting force of the sealing elastic ring directly acts on the horizontal portion of the sealing lip, deformation of the first inclined portion and the second inclined portion of the sealing lip can be reduced, the sealing contact area between the sealing lip and the member to be sealed 17 is reduced, the permeability is increased, the installation is easier, and the possibility of damaging the sealing element due to installation is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a novel combined seal, includes sealed elastic ring and sealed sliding ring, the sealed sliding ring outside sets up left protruding edge, right protruding edge and is located the left protruding edge and the right protruding slot between following, and the sealed sliding ring inboard is equipped with seal lip, its characterized in that: the cross section of the groove sequentially comprises a first arc part, a first inclined part, a second arc part, a horizontal part, a third arc part, a second inclined part, a fourth arc part, a vertical part, a fifth arc part and a sixth arc part from left to right; the section of the sealing lip sequentially comprises a first inclined part of the sealing lip, a horizontal part of the sealing lip and a second inclined part of the sealing lip from left to right.
2. A novel combination seal as defined in claim 1, wherein: the circle center of the section of the sealing elastic ring is positioned above the horizontal part of the sealing lip.
3. A novel combination seal as defined in claim 2, wherein: the circle center of the section of the sealing elastic ring is close to or positioned right above the middle of the horizontal part of the sealing lip.
4. A novel combination seal as defined in claim 1, wherein: the width of the left convex edge is 0.1-0.6mm, the radius of the first arc part, the radius of the second arc part, the radius of the third arc part and the radius of the sixth arc part are respectively 1-5mm, the radius of the fourth arc part is 0.25 times of the section line diameter of the sealing elastic ring, the radius of the fifth arc part is 0.5 times of the section line diameter of the sealing elastic ring, the inclination angle of the first inclined part is 10-30 degrees, and the inclination angle of the second inclined part of the groove is 10-30 degrees;
the width of the horizontal part of the sealing lip is 0.5-5mm, the inclination angle c of the first inclined part of the sealing lip is 5-40 degrees, the inclination angle d of the second inclined part of the sealing lip is 5-30 degrees, the distance between the horizontal part of the groove and the horizontal part of the sealing lip is 0.5-5mm, and the thickness of the sealing lip is 0.2-0.5 times of the distance between the horizontal part of the groove and the horizontal part of the sealing lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122804946.1U CN216242265U (en) | 2021-11-16 | 2021-11-16 | Novel combined seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122804946.1U CN216242265U (en) | 2021-11-16 | 2021-11-16 | Novel combined seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216242265U true CN216242265U (en) | 2022-04-08 |
Family
ID=80942338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122804946.1U Active CN216242265U (en) | 2021-11-16 | 2021-11-16 | Novel combined seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216242265U (en) |
-
2021
- 2021-11-16 CN CN202122804946.1U patent/CN216242265U/en active Active
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