CN220792097U - O-shaped ring for sealing end face of valve element - Google Patents
O-shaped ring for sealing end face of valve element Download PDFInfo
- Publication number
- CN220792097U CN220792097U CN202321651675.3U CN202321651675U CN220792097U CN 220792097 U CN220792097 U CN 220792097U CN 202321651675 U CN202321651675 U CN 202321651675U CN 220792097 U CN220792097 U CN 220792097U
- Authority
- CN
- China
- Prior art keywords
- shaped ring
- trapezoid
- ring
- valve core
- face
- 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 25
- 230000007704 transition Effects 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 8
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- -1 polyoxymethylene Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Abstract
The utility model discloses an O-shaped ring for sealing the end face of a valve core. The utility model relates to an O-shaped ring for sealing the end face of a valve core, which comprises an O-shaped ring trapezoid end and an O-shaped ring round end, wherein the O-shaped ring trapezoid end and the O-shaped ring round end are integrated as a whole when seen from a longitudinal section; the included angle between the trapezoid waist edge and the trapezoid bottom edge of the trapezoid end of the O-shaped ring is 80-88 degrees, so that the trapezoid end of the O-shaped ring can be quickly installed in a trapezoid groove of a corresponding valve core in an embedded mode; rounded corner transition is arranged between the trapezoid end of the O-shaped ring and the round end of the O-shaped ring. The utility model can prevent the O-shaped ring from changing in the assembling or moving process of the valve core through the trapezoid structure at the tail part of the valve core, and avoid sealing failure.
Description
Technical Field
The utility model belongs to the technical field of O-shaped rings, and particularly relates to an O-shaped ring for sealing an end face of a valve core.
Background
At present, most safety valves and one-way valves are sealed by means of line contact between a valve core and a valve body, and the abrasion degree between the valve core and the valve body is different along with the material and the surface hardness along with the increase of working time, so that the phenomenon that the safety valve or the one-way valve is leaked due to the fact that the sealing is not tight easily occurs. If the existing O-shaped ring is adopted for axial sealing, the O-shaped ring is easy to break due to elastic deformation of the O-shaped ring and cut edges of openings on two sides of the valve body. Therefore, an O-shaped ring for sealing the end face of the valve core is developed, and the O-shaped ring has important significance for changing the sealing performance of the existing valve core.
Related persons have studied and discussed the field of O-ring technology. Patent grant publication number CN204852344U discloses a coaxial type combined sealing ring for a piston rod, and solves the problems of easy extrusion leakage, structure distortion and easy abrasion of the existing sealing ring. However, the convex edge end of the O-shaped ring is made of polyoxymethylene material, the elastic deformation capability of the material is poor, the requirement of sealing the end face of the piston cannot be met, and the material is only suitable for axial sealing.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an O-shaped ring for sealing the end face of a valve core, which can prevent the posture of the O-shaped ring from changing in the movement process of the valve core and avoid sealing failure.
The aim of the utility model is realized by the following technical scheme:
the O-shaped ring for sealing the end face of the valve core comprises an O-shaped ring trapezoid end and an O-shaped ring round end as a whole when seen from the longitudinal section, wherein the O-shaped ring trapezoid end can be quickly arranged in a trapezoid groove of the corresponding valve core in an embedded mode.
Specifically, the included angle between the trapezoid waist edge and the trapezoid bottom edge of the trapezoid end of the O-shaped ring is 80-88 degrees, so that the O-shaped ring can lock the trapezoid end of the O-shaped ring through the trapezoid groove of the valve core, the O-shaped ring is prevented from being changed in the posture of the O-shaped ring due to oil impact in the moving process, and meanwhile, dislocation of the O-shaped ring due to gravity in the assembling process can be prevented, and sealing failure is caused.
Furthermore, the trapezoid end of the O-shaped ring and the round end of the O-shaped ring are transited through the round angle, so that the O-shaped ring is prevented from being subjected to stress concentration in the moving process and is repeatedly impacted by oil liquid to generate tearing.
Specifically, the longitudinal section of the circular end of the O-shaped ring is circular arc or rectangular.
Specifically, the O-shaped ring material is a high polymer with elastic deformation capability, so that when the O-shaped ring is contacted with the valve body groove, the O-shaped ring is contacted with the valve body groove through the elastic deformation capability.
Further, the O-shaped ring material is fluororubber.
Compared with the prior art, the O-shaped ring for sealing the end face of the valve core has the following advantages:
(1) By controlling the posture of the O-shaped ring in the moving process, the sealing performance of the end face of the valve core can be improved.
(2) The O-shaped ring is arranged on the end face of the valve core, the bottom of the O-shaped ring is contacted with the valve body, and the damage of the O-shaped ring by the trimming edges of holes on two sides of the valve body can be avoided, so that the sealing function of the O-shaped ring is ensured.
Drawings
FIG. 1 is a schematic view showing a longitudinal sectional structure of an O-ring according to an embodiment of the present utility model.
FIG. 2 is a schematic view showing a mounting cross-sectional structure of an O-ring according to an embodiment of the present utility model.
In the figure, 1a is an O-ring trapezoid end, 1b is a round angle, 1c is an O-ring round end, 1 is an O-ring, 2 is a valve body, and 3 is a valve core.
Detailed Description
For a better understanding of the structure, features and advantages of the present utility model, reference should be made to the following detailed description of the utility model taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1 and 2, the O-ring for sealing the end face of the valve core in this embodiment comprises an O-ring trapezoid end 1a and an O-ring round end 1c when viewed in a longitudinal section of the O-ring, the O-ring trapezoid end 1a and the O-ring round end 1c are integrated, and the O-ring trapezoid end 1a can be quickly installed in a trapezoid groove of a corresponding valve core 3 in an embedding manner.
In the embodiment, the included angle between the trapezoid waist edge and the trapezoid bottom edge of the trapezoid end 1a of the O-shaped ring is 85 degrees, the included angle between the trapezoid groove waist edge and the trapezoid bottom edge corresponding to the trapezoid groove waist edge in the valve core 3 is 85 degrees, when the O-shaped ring is embedded in the valve core 3, the O-shaped ring 1 is driven to move up and down together by the up-and-down movement of the valve core 3, so that the posture of the O-shaped ring is prevented from being changed in the up-and-down movement process of the valve core 3, and the end face seal of the valve core 3 is invalid.
In the embodiment, the trapezoid end 1a of the O-shaped ring and the round end 1c of the O-shaped ring are transited through the round angle 1b with the radius of 3 mm, so that the situation that the stress of the O-shaped ring is concentrated in the moving process and the O-shaped ring is repeatedly impacted by oil liquid to generate tearing is avoided.
The circular end 1c of the O-ring of this embodiment is a semicircle with a radius of 10 mm.
The O-shaped ring is made of high-temperature-resistant and oil-resistant fluororubber.
The working process of the utility model is as follows: when the oil pressure pushes up the valve core 3 with the O-shaped ring 1, oil flows out from the two ends of the valve body 2, at the moment, the oil can generate upward and leftward or rightward impact force on the O-shaped ring 1, the posture of the O-shaped ring 1 is easy to change, and as the trapezoid end 1a of the O-shaped ring is restrained by the trapezoid groove in the valve core 3, the O-shaped ring 1 can be ensured not to move left and right up and down when moving up and down along with the valve core 3, so that the posture of the O-shaped ring is fixed. When the valve core 3 descends, the fixed O-shaped ring 1 can fall into the groove of the valve body 2 again, so that the end face of the valve core 3 is sealed.
The foregoing is merely illustrative of the embodiments of the present utility model, and the scope of the present utility model is not limited thereto, and any changes or substitutions that may be made by those skilled in the art without inventive effort within the scope of the present utility model should be covered. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (4)
1. An O-ring for sealing the end face of a valve core, which is characterized in that: seen from a longitudinal section, the valve comprises an O-ring trapezoid end (1 a) and an O-ring round end (1 c), wherein the O-ring trapezoid end (1 a) and the O-ring round end (1 c) are integrated, and the O-ring trapezoid end (1 a) can be quickly arranged in a trapezoid groove of a corresponding valve core (3) in an embedding manner;
the included angle between the trapezoid waist edge and the trapezoid bottom edge of the trapezoid end (1 a) of the O-shaped ring is 80-88 degrees, so that the O-shaped ring can lock the trapezoid end (1 a) of the O-shaped ring through the trapezoid groove of the valve core (3);
the O-shaped ring trapezoid end (1 a) and the O-shaped ring round end (1 c) are in transition through a round angle (1 b).
2. The O-ring for spool end face sealing of claim 1, wherein: the longitudinal section of the circular end (1 c) of the O-shaped ring is circular arc-shaped or rectangular.
3. The O-ring for spool end face sealing of claim 1, wherein: the O-shaped ring material is a high molecular polymer with elastic deformation capability.
4. An O-ring for a spool end face seal as set forth in claim 3 wherein: the O-shaped ring material is fluororubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321651675.3U CN220792097U (en) | 2023-06-27 | 2023-06-27 | O-shaped ring for sealing end face of valve element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321651675.3U CN220792097U (en) | 2023-06-27 | 2023-06-27 | O-shaped ring for sealing end face of valve element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220792097U true CN220792097U (en) | 2024-04-16 |
Family
ID=90662062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321651675.3U Active CN220792097U (en) | 2023-06-27 | 2023-06-27 | O-shaped ring for sealing end face of valve element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220792097U (en) |
-
2023
- 2023-06-27 CN CN202321651675.3U patent/CN220792097U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |