CN213064448U - Dustproof sealing ring - Google Patents
Dustproof sealing ring Download PDFInfo
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- CN213064448U CN213064448U CN202021961238.8U CN202021961238U CN213064448U CN 213064448 U CN213064448 U CN 213064448U CN 202021961238 U CN202021961238 U CN 202021961238U CN 213064448 U CN213064448 U CN 213064448U
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Abstract
The utility model relates to the technical field of sealing rings, in particular to a dustproof sealing ring, which comprises an annular rubber part, an annular framework and a spring; the annular rubber part is provided with a through hole along the axis, and the aperture of the through hole is gradually increased from one end to the other end of the axis of the annular rubber part; an annular sealing groove is formed in the other end, located on the axis of the annular rubber piece, of the through hole, an annular mounting groove is formed in the internal corner of the annular sealing groove, and the annular framework is embedded in the annular mounting groove; annular rubber spare for the outer wall of through-hole is located the one end of the axis of annular rubber spare is equipped with annular assembly groove, annular assembly groove for the lateral wall of through-hole is equipped with annular positioning groove, the spring with annular positioning groove joint. The utility model discloses guaranteed oil blanket structure's validity, prolonged the life of oil blanket, reduced the oil leak probability of bumper shock absorber.
Description
Technical Field
The utility model relates to a sealing washer technical field especially relates to a dustproof sealing ring.
Background
At present, most of aluminum alloy oil seal seats in shock absorbers adopt frameless rubber seal rings, the seal rings have the advantages that the production and manufacturing cost is low, but the silt prevention performance and the waterproof performance are general, and particularly, rubber lips are easy to age, so that the oil seal structure fails, the shock absorbers leak oil and the like.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing a dustproof sealing ring that leakproofness is good.
In order to solve the technical problem, the utility model discloses a technical scheme be: a dustproof sealing ring comprises an annular rubber part, an annular framework and a spring;
the annular rubber part is provided with a through hole along the axis, and the aperture of the through hole is gradually increased from one end to the other end of the axis of the annular rubber part;
an annular sealing groove is formed in the other end, located on the axis of the annular rubber piece, of the through hole, an annular mounting groove is formed in the internal corner of the annular sealing groove, and the annular framework is embedded in the annular mounting groove;
annular rubber spare for the outer wall of through-hole is located the one end of the axis of annular rubber spare is equipped with annular assembly groove, annular assembly groove for the lateral wall of through-hole is equipped with annular positioning groove, the spring with annular positioning groove joint.
In an optional embodiment, an included angle between the inner wall of the through hole and the axis of the annular rubber member ranges from 65 ° to 85 °.
In an alternative embodiment, the cross-sectional shape of the annular framework is matched with that of the annular mounting groove.
In an optional embodiment, the internal corner of the annular mounting groove and the external corner of the annular framework are provided with arc-shaped chamfers.
In an alternative embodiment, the free height of the spring is less than the circumference of the annular positioning groove.
The beneficial effects of the utility model reside in that: the utility model provides a dustproof sealing ring, including annular rubber spare, annular skeleton and spring, annular rubber spare is equipped with the through-hole along the axis, the inner wall of through-hole is the inclined plane, inner wall at the through-hole is equipped with the annular seal groove, the annular seal groove is used for the assembly, the annular seal groove is embedded to have annular skeleton, the annular skeleton plays the effect that improves the intensity of sealing washer, outer wall at the through-hole is equipped with the annular assembly groove, form the lip structure, be equipped with annular positioning groove on the annular assembly groove, the annular positioning groove is embedded to have the spring, the spring can adopt stainless steel material, the stainless steel spring can hold the piston rod tightly in advance, after the lip is ageing, can prevent silt, debris such as water get into inside the oil blanket, the validity of oil blanket structure has been guaranteed, the life of oil.
Drawings
Fig. 1 is a schematic structural view of a dustproof sealing ring according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a dust seal according to an embodiment of the present invention;
description of reference numerals:
1. an annular rubber member; 11. a through hole; 12. an annular seal groove; 13. an annular mounting groove; 14. an annular assembly groove; 15. an annular positioning groove;
2. an annular skeleton;
3. a spring.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, a dustproof sealing ring of the present invention includes an annular rubber member, an annular frame, and a spring;
the annular rubber part is provided with a through hole along the axis, and the aperture of the through hole is gradually increased from one end to the other end of the axis of the annular rubber part;
an annular sealing groove is formed in the other end, located on the axis of the annular rubber piece, of the through hole, an annular mounting groove is formed in the internal corner of the annular sealing groove, and the annular framework is embedded in the annular mounting groove;
annular rubber spare for the outer wall of through-hole is located the one end of the axis of annular rubber spare is equipped with annular assembly groove, annular assembly groove for the lateral wall of through-hole is equipped with annular positioning groove, the spring with annular positioning groove joint.
From the above description, the beneficial effects of the present invention are: the utility model provides a dustproof sealing ring, including annular rubber spare, annular skeleton and spring, annular rubber spare is equipped with the through-hole along the axis, the inner wall of through-hole is the inclined plane, inner wall at the through-hole is equipped with the annular seal groove, the annular seal groove is used for the assembly, the annular seal groove is embedded to have annular skeleton, the annular skeleton plays the effect that improves the intensity of sealing washer, outer wall at the through-hole is equipped with the annular assembly groove, form the lip structure, be equipped with annular positioning groove on the annular assembly groove, the annular positioning groove is embedded to have the spring, the spring can adopt stainless steel material, the stainless steel spring can hold the piston rod tightly in advance, after the lip is ageing, can prevent silt, debris such as water get into inside the oil blanket, the validity of oil blanket structure has been guaranteed, the life of oil.
Furthermore, the included angle range of the inner wall of the through hole and the axis of the annular rubber part is 65-85 degrees.
From the above description, it can be seen that the inner wall of the through hole is inclined, and through repeated experiments, the sealing effect on the piston rod assembled in the through hole is best when the spring in a stretching state is matched within the range of the included angle.
Furthermore, the section shape of the annular framework is matched with that of the annular mounting groove.
From the above description, the annular framework is in nested fit with the annular mounting groove, so that the strength of the sealing ring is improved, and the assembly sealing effect is enhanced.
Furthermore, the internal corner of the annular mounting groove and the external corner of the annular framework are both provided with arc chamfers.
From the above description, the arc-shaped chamfer plays the roles of avoiding protection and being convenient for disassembly and assembly.
Further, the free height of the spring is smaller than the circumference of the annular positioning groove.
It can be seen from the above description that the design is to ensure that the spring is always in a stretched state, so that the lip of the seal ring grips the piston rod.
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a dustproof sealing ring comprises an annular rubber part 1, an annular framework 2 and a spring 3;
the annular rubber part 1 is provided with a through hole 11 along the axis, and the aperture of the through hole 11 is gradually increased from one end to the other end of the axis of the annular rubber part 1;
an annular sealing groove 12 is formed in the other end, located on the axis of the annular rubber part 1, of the through hole 11, an annular mounting groove 13 is formed in the internal corner of the annular sealing groove 12, and the annular framework 2 is embedded in the annular mounting groove 13;
The included angle between the inner wall of the through hole 11 and the axis of the annular rubber member 1 ranges from 65 degrees to 85 degrees. The section shape of the annular framework 2 is matched with that of the annular mounting groove 13. The internal corner of the annular mounting groove 13 and the external corner of the annular framework 2 are both provided with arc chamfers. The free height of the spring 3 is smaller than the circumference of the annular positioning groove 15.
To sum up, the utility model provides a dust seal, including annular rubber spare, annular skeleton and spring, annular rubber spare is equipped with the through-hole along the axis, the inner wall of through-hole is the inclined plane, inner wall at the through-hole is equipped with the annular seal groove, the annular seal groove is used for the assembly, the annular seal groove is embedded to have annular skeleton, the annular skeleton plays the effect that improves the intensity of sealing washer, be equipped with the annular assembly groove at the outer wall of through-hole, form the lip structure, be equipped with annular positioning groove on the annular assembly groove, the annular positioning groove is embedded to have the spring, the spring can adopt stainless steel, the piston rod can be held tightly in advance to the stainless steel spring, after the lip is ageing, can prevent silt, debris such as water get into inside the oil blanket, the validity of oil blanket structure has been guaranteed, the service life of oil blanket.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (5)
1. A dustproof sealing ring is characterized by comprising an annular rubber part, an annular framework and a spring;
the annular rubber part is provided with a through hole along the axis, and the aperture of the through hole is gradually increased from one end to the other end of the axis of the annular rubber part;
an annular sealing groove is formed in the other end, located on the axis of the annular rubber piece, of the through hole, an annular mounting groove is formed in the internal corner of the annular sealing groove, and the annular framework is embedded in the annular mounting groove;
annular rubber spare for the outer wall of through-hole is located the one end of the axis of annular rubber spare is equipped with annular assembly groove, annular assembly groove for the lateral wall of through-hole is equipped with annular positioning groove, the spring with annular positioning groove joint.
2. The dust seal according to claim 1, wherein an angle between the inner wall of the through hole and the axis of the annular rubber member is in a range of 65 ° to 85 °.
3. The dust seal of claim 1, wherein the cross-sectional shape of the annular framework is adapted to the cross-sectional shape of the annular mounting groove.
4. The dust seal of claim 1, wherein the female corner of the annular mounting groove and the male corner of the annular framework are provided with arc-shaped chamfers.
5. The dust seal of claim 1, wherein the free height of the spring is less than the circumference of the annular retaining groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021961238.8U CN213064448U (en) | 2020-09-09 | 2020-09-09 | Dustproof sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021961238.8U CN213064448U (en) | 2020-09-09 | 2020-09-09 | Dustproof sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213064448U true CN213064448U (en) | 2021-04-27 |
Family
ID=75557386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021961238.8U Active CN213064448U (en) | 2020-09-09 | 2020-09-09 | Dustproof sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213064448U (en) |
-
2020
- 2020-09-09 CN CN202021961238.8U patent/CN213064448U/en active Active
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