CN210715926U - High-pressure V-shaped sealing assembly - Google Patents
High-pressure V-shaped sealing assembly Download PDFInfo
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- CN210715926U CN210715926U CN201921556851.9U CN201921556851U CN210715926U CN 210715926 U CN210715926 U CN 210715926U CN 201921556851 U CN201921556851 U CN 201921556851U CN 210715926 U CN210715926 U CN 210715926U
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- 238000007789 sealing Methods 0.000 title claims abstract description 130
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 11
- 238000005299 abrasion Methods 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a high-pressure V-shaped sealing assembly, a baffle ring, a V-shaped sealing ring and a compression ring are sequentially arranged in a sealing groove from left to right; a first V-shaped groove is formed in the right end face of the baffle ring, and the angle of the first V-shaped groove is the same as that of the contact position of the V-shaped sealing ring; a second V-shaped groove is formed in the right end face of the V-shaped sealing ring, the opening end of the second V-shaped groove is a sealing ring lip, and a first transition arc is arranged at the bottom of the second V-shaped groove; a sharp corner is arranged in the middle of the outer ring of the sealing ring lip, and the included angle of the sharp corner is an obtuse angle; the structure of any section on the compression ring is a transverse T-shaped block, and the middle extending end of the transverse T-shaped block is in contact with the first transition arc of the second V-shaped groove. The utility model has reasonable structure, low friction, extrusion resistance and lip protection device, and prevents the sealing ring lip from being extruded into the gap and damaged; the contact area between the lip of the sealing ring and the piston rod is reduced, the friction and the abrasion are reduced, and the service life is prolonged.
Description
Technical Field
The utility model belongs to the technical field of it is sealed, a fluid seal circle is related to, in particular to high pressure V type seal assembly.
Background
The structure of the existing product is shown in fig. 1, a piston rod 3 is installed in a cylinder body, a sealing groove is arranged on the inner wall of the cylinder body, a gap Z is arranged between the cylinder body at the left end of the sealing groove and the piston rod 3, and a gap a is arranged between the cylinder body at the right end of the sealing groove and the piston rod 3; the sealing assembly consists of a U-shaped sealing ring 1 and a rectangular retainer ring 2, the inner diameter of the U-shaped sealing ring 1 is slightly smaller than the diameter of the piston rod 3, and the initial sealing effect is ensured; the rectangular retainer ring 2 can prevent the root of the U-shaped sealing ring 1 from being squeezed into the gap Z under high pressure to damage the sealing ring and cause leakage.
The following technical defects exist in use: when the fluid pressure P is very high in the use process of the sealing ring, the pressure acts in the U-shaped groove of the U-shaped sealing ring to tightly press the inner diameter of the U-shaped sealing ring on the surface of the piston rod, so that the friction force between the U-shaped sealing ring and the piston rod is very large, the heat generated by friction can be increased, the abrasion of the lip of the U-shaped sealing ring is accelerated, and the sealing life is short; meanwhile, because the friction force between the lip of the U-shaped sealing ring and the piston rod is large, when the piston rod moves rightwards, the U-shaped sealing ring can be driven to move rightwards, the lip of the U-shaped sealing ring is extruded into the gap A, and the lip of the sealing ring is damaged.
How to design a high-pressure V-shaped sealing assembly and how to provide a V-shaped sealing assembly which has low friction and extrusion resistance and is provided with a lip opening protecting device becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages of the prior art, an object of the present invention is to provide a high-pressure V-shaped sealing assembly, which is used to solve the problem existing in the prior art that when the fluid pressure P is very high during the use of the sealing ring, the pressure acts on the U-shaped groove of the U-shaped sealing ring to tightly press the inner diameter of the U-shaped sealing ring against the surface of the piston rod, so that the friction between the U-shaped sealing ring and the piston rod is very large, the heat generated by friction can be increased and the wear of the lip of the U-shaped sealing ring is accelerated, resulting in a short sealing life; meanwhile, because the friction force between the lip of the U-shaped sealing ring and the piston rod is large, when the piston rod moves rightwards, the U-shaped sealing ring can be driven to move rightwards, so that the lip of the U-shaped sealing ring is extruded into a gap between the cylinder body and the piston rod, and the problem of sealing ring lip damage is caused.
In order to achieve the purpose, the utility model provides a high-pressure V-shaped sealing assembly, which comprises a cylinder body, wherein a piston rod is arranged in the cylinder body, a sealing groove is arranged on the inner wall of the cylinder body, a gap Z is arranged between the cylinder body at the left end of the sealing groove and the piston rod, and a gap A is arranged between the cylinder body at the right end of the sealing groove and the piston rod; a baffle ring, a V-shaped sealing ring and a pressure ring are sequentially arranged in the sealing groove from left to right;
a first V-shaped groove is formed in the right end face of the baffle ring, and the angle of the first V-shaped groove is the same as that of the contact position of the V-shaped sealing ring;
by adopting the technical scheme: the retaining ring plays a supporting role on the V-shaped sealing ring and prevents the root of the V-shaped sealing ring from being extruded into the gap Z; when the fluid pressure is very high, the baffle ring supports most of the area of the root part of the V-shaped sealing ring, so that the contact area of the V-shaped sealing ring and the piston rod is reduced, only one part of the lip of the sealing ring is in contact with the piston rod, the friction force is reduced, the heat generated by abrasion and friction is reduced, and the service life is prolonged;
a second V-shaped groove is formed in the right end face of the V-shaped sealing ring, the opening end of the second V-shaped groove is a sealing ring lip, and a first transition arc is arranged at the bottom of the second V-shaped groove; a sharp corner is arranged in the middle of the outer ring of the sealing ring lip, and the included angle of the sharp corner is an obtuse angle;
by adopting the technical scheme: the contact area between the sealing ring lip of the V-shaped sealing ring and the piston rod is reduced, the friction and the abrasion are reduced, and the service life is prolonged;
the structure of any section on the compression ring is a transverse T-shaped block, the middle extending end of the transverse T-shaped block is in contact with a first transition arc of a second V-shaped groove, and a gap is formed between the right end face of the transverse T-shaped block and the sealing groove;
by adopting the technical scheme: the compression ring fills the transverse gap of the V-shaped sealing ring in the sealing groove; when the piston rod moves rightwards, the pressing ring props against the V-shaped sealing ring, and the V-shaped sealing ring cannot move rightwards along with the piston rod, so that the sealing ring lip of the V-shaped sealing ring is prevented from being extruded into the gap A and being damaged.
In an embodiment of the present invention, the second transition arc is disposed at the bottom of the first V-shaped groove on the retaining ring.
In one embodiment of the present invention, the compression ring is provided with a plurality of oil grooves,
by adopting the technical scheme: the plurality of oil grooves enable fluid to enter the outer side from the inner side of the V-shaped sealing ring along the oil grooves, so that the fluid pressure can be uniformly distributed on the V-shaped sealing surface of the V-shaped sealing ring, and the sealing effect is ensured.
In an embodiment of the present invention, the pressing ring is provided with a plurality of oil grooves uniformly distributed around the circumference.
In an embodiment of the present invention, the pressing ring is provided with a plurality of oil grooves arranged along a circumferential direction.
In an embodiment of the present invention, the oil grooves are symmetrically arranged.
As mentioned above, the high-pressure V-shaped sealing assembly of the utility model has reasonable structure, low friction, extrusion resistance and a lip protector, and prevents the sealing lip from being extruded into the gap between the cylinder body and the piston rod to be damaged; the contact area between the lip of the sealing ring and the piston rod is reduced, the friction and the abrasion are reduced, the service life is prolonged, and the sealing ring has good economic and social benefits when being popularized and applied.
Drawings
Fig. 1 is a schematic view of a sealing ring mounting structure in the prior art.
Fig. 2 is a schematic view of the installation structure of the present invention.
In the figure: 1, a U-shaped sealing ring; 2. a rectangular retainer ring; 3. a piston rod; 4, a V-shaped sealing ring; 5. a baffle ring; 6. and (5) pressing a ring.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1-2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 2, the utility model provides a high-pressure V-shaped sealing assembly, which comprises a cylinder body, a piston rod 3 is arranged in the cylinder body, a sealing groove is arranged on the inner wall of the cylinder body, a gap Z is arranged between the cylinder body at the left end of the sealing groove and the piston rod 3, and a gap a is arranged between the cylinder body at the right end of the sealing groove and the piston rod 3; a baffle ring 5, a V-shaped sealing ring 4 and a pressing ring 6 are sequentially arranged in the sealing groove from left to right;
a first V-shaped groove is formed in the right end face of the baffle ring 5, and the angle of the first V-shaped groove is the same as that of the contact position of the V-shaped sealing ring 4; by adopting the technical scheme: the retaining ring plays a supporting role on the V-shaped sealing ring and prevents the root of the V-shaped sealing ring from being extruded into the gap Z; when the fluid pressure is very high, the baffle ring supports most of the area of the root part of the V-shaped sealing ring, so that the contact area of the V-shaped sealing ring and the piston rod is reduced, only one part of the lip of the sealing ring is in contact with the piston rod, the friction force is reduced, the heat generated by abrasion and friction is reduced, and the service life is prolonged;
a second V-shaped groove is formed in the right end face of the V-shaped sealing ring 4, the opening end of the second V-shaped groove is a sealing ring lip, and a first transition arc is arranged at the bottom of the second V-shaped groove; a sharp corner is arranged in the middle of the outer ring of the sealing ring lip, and the included angle of the sharp corner is an obtuse angle; by adopting the technical scheme: the contact area between the sealing ring lip of the V-shaped sealing ring and the piston rod is reduced, the friction and the abrasion are reduced, and the service life is prolonged;
the structure of any section on the compression ring 6 is a transverse T-shaped block, the middle extending end of the transverse T-shaped block is in contact with a first transition arc of a second V-shaped groove, and a gap is formed between the right end face of the transverse T-shaped block and the sealing groove; by adopting the technical scheme: the compression ring fills the transverse gap of the V-shaped sealing ring in the sealing groove; when the piston rod moves rightwards, the compression ring props against the V-shaped sealing ring, and the V-shaped sealing ring cannot move rightwards along with the piston rod, so that the sealing ring lip of the V-shaped sealing ring is prevented from being extruded into the gap A to be damaged;
a second transition arc is arranged at the bottom of the first V-shaped groove on the baffle ring 5;
the compression ring 6 is provided with a plurality of oil grooves,
by adopting the technical scheme: the plurality of oil grooves enable fluid to enter the outer side from the inner side of the V-shaped sealing ring along the oil grooves, so that the pressure of the fluid can be uniformly distributed on the V-shaped sealing surface of the V-shaped sealing ring, and the sealing effect is ensured;
the compression ring 6 is provided with a plurality of oil grooves uniformly distributed around the circumference;
the compression ring 6 is provided with a plurality of oil grooves arranged along the circumferential direction;
the oil grooves are symmetrically arranged.
When the sealing ring is used, the stop ring 5 can effectively prevent the root of the V-shaped sealing ring 4 from being extruded into the gap Z, and the sharp angle of the outer ring of the sealing ring lip reduces the contact area between the sealing ring lip of the V-shaped sealing ring 4 and the piston rod 3, so that the friction and the abrasion are reduced, and the service life is prolonged;
meanwhile, the compression ring 6 fills the transverse gap of the V-shaped sealing ring 4 in the sealing groove, so when the piston rod 3 moves rightwards, the compression ring 6 supports against the V-shaped sealing ring 4, the V-shaped sealing ring 4 cannot move rightwards along with the piston rod 3, and the sealing ring lip of the V-shaped sealing ring 4 is prevented from being extruded into the gap A to be damaged.
In summary, the utility model provides a high-pressure V-shaped sealing assembly, which has reasonable structure, low friction, extrusion resistance and a lip protection device, and prevents the sealing ring lip from being extruded into the gap between the cylinder body and the piston rod to be damaged; the contact area between the lip of the sealing ring and the piston rod is reduced, the friction and the abrasion are reduced, and the service life is prolonged. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a high pressure V type seal assembly, includes the cylinder body, installs piston rod (3) in the cylinder body, is provided with seal groove, its characterized in that on the inner wall of cylinder body: a baffle ring (5), a V-shaped sealing ring (4) and a pressing ring (6) are sequentially arranged in the sealing groove from left to right;
a first V-shaped groove is formed in the right end face of the baffle ring (5), and the angle of the first V-shaped groove is the same as that of the contact position of the V-shaped sealing ring (4);
a second V-shaped groove is formed in the right end face of the V-shaped sealing ring (4), the opening end of the second V-shaped groove is a sealing ring lip, and a first transition arc is arranged at the bottom of the second V-shaped groove; a sharp corner is arranged in the middle of the outer ring of the sealing ring lip, and the included angle of the sharp corner is an obtuse angle;
the structure of any section on the compression ring (6) is a transverse T-shaped block, the middle extending end of the transverse T-shaped block is in contact with a first transition arc of a second V-shaped groove, and a gap is formed between the right end face of the transverse T-shaped block and the sealing groove.
2. The high pressure V-seal assembly of claim 1, wherein: and a second transition arc is arranged at the bottom of the first V-shaped groove on the baffle ring (5).
3. The high pressure V-seal assembly of claim 1, wherein: the pressing ring (6) is provided with a plurality of oil grooves, so that fluid can enter the outer side from the inner side of the V-shaped sealing ring (4) along the oil grooves, and the pressure of the fluid can be uniformly distributed on the V-shaped sealing surface of the V-shaped sealing ring (4).
4. A high pressure V-seal assembly according to claim 3 wherein: the compression ring (6) is provided with a plurality of oil grooves uniformly distributed around the circumference.
5. The high pressure V-seal assembly of claim 4, wherein: the compression ring (6) is provided with a plurality of oil grooves arranged along the circumferential direction.
6. The high pressure V-seal assembly of claim 5, wherein: the oil grooves are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921556851.9U CN210715926U (en) | 2019-09-18 | 2019-09-18 | High-pressure V-shaped sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921556851.9U CN210715926U (en) | 2019-09-18 | 2019-09-18 | High-pressure V-shaped sealing assembly |
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| Publication Number | Publication Date |
|---|---|
| CN210715926U true CN210715926U (en) | 2020-06-09 |
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ID=70965102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921556851.9U Active CN210715926U (en) | 2019-09-18 | 2019-09-18 | High-pressure V-shaped sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210715926U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145709A (en) * | 2020-10-28 | 2020-12-29 | 宁波市鄞州超杰汽车零部件有限公司 | Speed regulating valve |
| CN113653877A (en) * | 2021-08-25 | 2021-11-16 | 苏州道森钻采设备股份有限公司 | A high-pressure sealing ring of a movable elbow connecting mechanism |
-
2019
- 2019-09-18 CN CN201921556851.9U patent/CN210715926U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145709A (en) * | 2020-10-28 | 2020-12-29 | 宁波市鄞州超杰汽车零部件有限公司 | Speed regulating valve |
| CN113653877A (en) * | 2021-08-25 | 2021-11-16 | 苏州道森钻采设备股份有限公司 | A high-pressure sealing ring of a movable elbow connecting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230808 Address after: Building 9, No. 18 Xinyuan Road, Chengxiang Town, Taicang City, Suzhou City, Jiangsu Province, 215411, 706-006 Patentee after: Suzhou Shande New Material Technology Co.,Ltd. Address before: 201199 room 173, building 1, 211 Xinling Road, Minhang District, Shanghai Patentee before: Shanghai Shande New Material Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |