CN219954216U - Hydraulic cylinder piston rod sealing ring - Google Patents
Hydraulic cylinder piston rod sealing ring Download PDFInfo
- Publication number
- CN219954216U CN219954216U CN202321085546.2U CN202321085546U CN219954216U CN 219954216 U CN219954216 U CN 219954216U CN 202321085546 U CN202321085546 U CN 202321085546U CN 219954216 U CN219954216 U CN 219954216U
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing ring
- groove
- piston rod
- hydraulic cylinder
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 230000000694 effects Effects 0.000 abstract description 11
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Sealing Devices (AREA)
- Actuator (AREA)
Abstract
The utility model discloses a hydraulic cylinder piston rod sealing ring, which relates to the technical field of sealing rings and comprises the following components: the sealing ring comprises a sealing ring body, wherein the upper surface of the sealing ring body is provided with a sealing groove, the upper part of the sealing groove is provided with a sealing part, the inner side of the sealing groove, which is positioned on the upper surface of the sealing ring body, is provided with a deformation groove, the upper part of the sealing ring body is integrally formed with a convex ring, and the inner side of the convex ring is provided with a protruding part. Through seal groove, sealing part, deformation groove, bulge loop, the protruding portion that sets up, can increase radial deformation volume to improve radial pretightning force, improve the holistic sealed effect of sealing washer, sealed effect is good, and it is very durable to use.
Description
Technical Field
The utility model relates to the technical field of sealing rings, in particular to a hydraulic cylinder piston rod sealing ring.
Background
The sealing is a mechanism for preventing leakage of working medium and preventing external foreign matters from entering the hydraulic element and the hydraulic system, and although the sealing element is an auxiliary element in the hydraulic equipment, the quality of the sealing and the sealing device is one of keys which directly influence whether the hydraulic system can work normally, and the quality of the sealing element restricts the improvement of the performance and the reliability of the hydraulic element and the hydraulic system to a certain extent.
The existing sealing ring is generally annular, provides a sealing effect for the joint through elasticity of the sealing ring, but has limited elastic deformation quantity, so that radial pretightening force is small, and the sealing performance of the sealing ring is reduced, so that the sealing ring is not durable enough to use.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a sealing ring for a piston rod of a hydraulic cylinder, wherein radial deformation can be increased through a sealing groove, a sealing part, a deformation groove, a convex ring and a protruding part, so that radial pretightening force is improved, the overall sealing effect of the sealing ring is improved, the sealing effect is good, and the sealing ring is very durable in use.
One of the purposes of the utility model is realized by adopting the following technical scheme: the utility model provides a pneumatic cylinder piston rod sealing washer, includes the sealing washer circle body, the upper surface of the sealing washer circle body is provided with the seal groove, the upper portion of seal groove is provided with sealing portion, the inboard that the sealing washer circle body upper surface just is located the seal groove is provided with deformation groove, the upper portion integrated into one piece of the sealing washer circle body has the bulge loop, the inboard of bulge loop is provided with the protruding portion. Through seal groove, sealing part, deformation groove, bulge loop, the protruding portion that sets up, can increase radial deformation volume to improve radial pretightning force, improve the holistic sealed effect of sealing washer, sealed effect is good, and it is very durable to use.
According to the hydraulic cylinder piston rod sealing ring, the cross section of the sealing groove is arc-shaped. Is used for sealing.
According to the hydraulic cylinder piston rod sealing ring, the cross section of the deformation groove is V-shaped. The radial deformation resistance is reduced, and the radial deformation quantity is increased.
The hydraulic cylinder piston rod sealing ring is provided, and the cross section of the protruding part is hemispherical. For providing a radially deforming force.
According to the hydraulic cylinder piston rod sealing ring, the convex ring is positioned at the inner side of the deformation groove.
According to the hydraulic cylinder piston rod sealing ring, the height difference between the convex ring and the upper surface of the sealing ring body is 1-3 mm.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is a perspective view of a hydraulic cylinder piston rod seal ring of the present utility model;
FIG. 2 is a perspective view of a hydraulic cylinder piston rod seal ring from a lower perspective of the present utility model;
FIG. 3 is a cross-sectional view of a hydraulic cylinder piston rod seal ring according to the present utility model;
fig. 4 is an enlarged view of a portion of a piston rod seal of a hydraulic cylinder according to the present utility model.
Legend description:
101. a seal ring body; 102. a deformation groove; 103. sealing grooves; 104. a sealing part; 105. a convex ring; 106. a protruding part.
Description of the embodiments
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
Referring to fig. 1-4, the embodiment of the utility model provides a sealing ring for a piston rod of a hydraulic cylinder, which comprises a sealing ring body 101, wherein a sealing groove 103 is arranged on the upper surface of the sealing ring body 101, the cross section of the sealing groove 103 is arc-shaped and is used for sealing, a sealing part 104 is arranged at the upper part of the sealing groove 103, the upper surface of the sealing ring body 101 and the inner side of the sealing groove 103 are provided with deformation grooves 102, the cross section of the deformation grooves 102 is V-shaped, radial deformation resistance is reduced, radial deformation is increased, a convex ring 105 is integrally formed at the upper part of the sealing ring body 101, the convex ring 105 is positioned at the inner side of the deformation grooves 102, the height difference between the convex ring 105 and the upper surface of the sealing ring body 101 is 1-3 mm, a protruding part 106 is arranged at the inner side of the convex ring 105, and the cross section of the protruding part 106 is hemispherical and is used for providing radial deformation force. Through seal groove 103, sealing part 104, deformation groove 102, bulge loop 105, protruding portion 106 that set up, can increase radial deformation volume to improve radial pretightning force, improve the holistic sealed effect of sealing washer, sealed effect is good, and it is very durable to use.
Working principle: when the sealing ring body 101 is used, the sealing ring body 101 is mounted on a piston rod of a hydraulic cylinder, because the radius of the protruding part 106 is smaller, radial outward force can be generated, deformation quantity is enlarged through the deformation groove 102, the outer circular surface of the convex ring 105 is utilized for sealing the upper part, and when the sealing groove 103 receives pressure in the vertical direction, deformation in expansion directions of two sides is generated, so that the sealing effect of the sealing ring body 101 is improved, the sealing effect is good, and the sealing ring is very durable in use.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (6)
1. The utility model provides a pneumatic cylinder piston rod sealing washer, includes sealing washer circle body (101), its characterized in that, the upper surface of sealing washer circle body (101) is provided with seal groove (103), the upper portion of seal groove (103) is provided with sealing portion (104), sealing washer circle body (101) upper surface and the inboard that is located seal groove (103) are provided with deformation groove (102), the upper portion integrated into one piece of sealing washer circle body (101) has bulge loop (105), the inboard of bulge loop (105) is provided with protruding portion (106).
2. A hydraulic cylinder piston rod sealing ring according to claim 1, characterized in that the cross-section of the sealing groove (103) is circular arc-shaped.
3. A hydraulic cylinder piston rod sealing ring according to claim 2, characterized in that the shape of the cross section of the deformation groove (102) is V-shaped.
4. A hydraulic cylinder piston rod sealing ring according to claim 3, characterized in that the cross-section of the protrusion (106) is hemispherical in shape.
5. A hydraulic cylinder piston rod sealing ring according to claim 4, characterized in that the collar (105) is located inside the deformation groove (102).
6. A hydraulic cylinder piston rod sealing ring according to claim 5, characterized in that the height difference between the raised ring (105) and the upper surface of the sealing ring body (101) is 1-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321085546.2U CN219954216U (en) | 2023-05-08 | 2023-05-08 | Hydraulic cylinder piston rod sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321085546.2U CN219954216U (en) | 2023-05-08 | 2023-05-08 | Hydraulic cylinder piston rod sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219954216U true CN219954216U (en) | 2023-11-03 |
Family
ID=88538448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321085546.2U Active CN219954216U (en) | 2023-05-08 | 2023-05-08 | Hydraulic cylinder piston rod sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219954216U (en) |
-
2023
- 2023-05-08 CN CN202321085546.2U patent/CN219954216U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |