CN111197656A - J-shaped sealing ring and quick opening structure using same - Google Patents
J-shaped sealing ring and quick opening structure using same Download PDFInfo
- Publication number
- CN111197656A CN111197656A CN202010150650.XA CN202010150650A CN111197656A CN 111197656 A CN111197656 A CN 111197656A CN 202010150650 A CN202010150650 A CN 202010150650A CN 111197656 A CN111197656 A CN 111197656A
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- Prior art keywords
- sealing
- ring
- flat cover
- foot
- sealing ring
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- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 198
- 238000009434 installation Methods 0.000 claims description 17
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 229920001973 fluoroelastomer Polymers 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 abstract description 10
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010070 extrusion (rubber) Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention belongs to the technical field of pressure vessel blind plate sealing, and particularly relates to a J-shaped sealing ring and a quick-opening structure using the same, wherein any cross section of the J-shaped sealing ring comprises: the mounting part, the sealing part and the outer warping foot; the mounting part is matched with a sealing groove formed at the bottom of the flat cover and used for mounting and fixing the J-shaped sealing ring; the sealing part is matched with a sealing structure at the bottom of the flat cover; the outward warped foot is in interference fit with an inner hole of the hubbed flange and used for providing radial initial sealing force. The J-shaped sealing ring provided by the embodiment of the invention can provide enough initial sealing force by arranging the mounting part; the length and the tortuosity of the sealing surface can be increased by arranging the sealing part, and the sealing property is improved; the radial initial sealing force can be provided by the provision of the upturned foot. The stress state of the sealing ring can be improved, the local extrusion and tearing of rubber are prevented, the service life of the sealing ring is prolonged, and sealing failure is prevented.
Description
Technical Field
The invention belongs to the technical field of pressure vessel blind plate sealing, and particularly relates to a J-shaped sealing ring and a quick-opening structure using the same.
Background
The lock ring type quick-opening blind plate is mainly applied to the end part of pressure vessel equipment or a pipeline, realizes the quick opening and closing of a sealed pressure-bearing structure through the design of a quick-opening mechanism, and is widely applied to the industrial fields of petroleum and natural gas, chemical industry, aerospace, electric power energy and the like. Compared with a common bolt flange structure, the quick-opening blind plate can open and close the door cover more quickly, and is suitable for industrial application occasions where the door cover needs to be frequently disassembled and assembled.
The quick-opening blind plate needs to use a sealing ring, and a common rubber ring with a lip-shaped (C-shaped) section requires a small gap for contacting a sealing surface, so that the adjustment space is limited when the door cover bearing quick-opening locking ring is assembled and disassembled, and the locking ring is difficult to assemble and disassemble due to the conditions of rubber extrusion, blockage of a lip-shaped cavity by impurities and the like; although the saddle-shaped section sealing ring has axial floatability to enable the locking ring to be assembled and disassembled easily, the extrusion state of the sealing ring is not favorable for disassembling the locking ring and has potential rubber tearing and sealing failure risks if the extrusion gap of the rubber ring is larger and cannot be effectively controlled.
It can be seen that the existing quick-opening blind plate sealing ring mainly comprises a C-shaped sealing ring, a saddle-shaped sealing ring and the like, the sealing rings are applied to products, the overall use condition is good, but the phenomena of serious local rubber extrusion and tearing can still occur due to the manufacturing process, the use condition and the like of a small amount of products, the service life of the sealing ring is shortened, and meanwhile, the potential sealing failure risk is avoided.
Disclosure of Invention
The invention aims to provide a J-shaped sealing ring, and aims to solve the problems that the existing quick-opening blind plate sealing ring mainly comprises a C-shaped sealing ring, a saddle-shaped sealing ring and the like, the sealing rings are applied to products, the general use condition is good, but the phenomenon that local rubber is seriously extruded and torn still occurs due to manufacturing processes, use conditions and other reasons of a small amount of products, the service life of the sealing ring is shortened, and meanwhile, the potential sealing failure danger is caused, and improvement is needed.
The embodiment of the invention is realized in such a way that any cross section of the J-shaped sealing ring comprises: the mounting part, the sealing part and the outer warping foot;
the mounting part is matched with a sealing groove formed at the bottom of the flat cover and used for mounting and fixing the J-shaped sealing ring;
the sealing part is matched with a sealing structure at the bottom of the flat cover;
the outward warped foot is in interference fit with an inner hole of the hubbed flange and used for providing radial initial sealing force.
It is another object of an embodiment of the present invention to provide a J-ring, any cross-section of which comprises: the mounting part, the sealing part and the outer warping foot;
the installation part is in interference fit with a sealing groove formed in the bottom of the flat cover and used for installing and fixing the J-shaped sealing ring, and the installation part is of a quadrilateral structure;
the sealing part is matched with a sealing structure at the bottom of the flat cover, and comprises a horizontal plane and a non-horizontal plane; the horizontal plane is connected with the sealing side of the outward warped foot; the non-horizontal plane is one side surface of the mounting part, and an included angle between the horizontal plane and the non-horizontal plane is larger than or equal to 90 degrees;
the outer warped foot is in interference fit with an inner hole of the high-neck flange and used for providing radial initial sealing force, and the bottom of the outer warped foot comprises an arc line section and an inward chamfer.
Another object of an embodiment of the present invention is to provide a quick-opening structure, including:
a J-ring seal as described in any one of the embodiments above;
the bottom of the flat cover is provided with a sealing groove matched with the mounting part of the J-shaped sealing ring, the J-shaped sealing ring is fixedly arranged at the bottom of the flat cover through a retaining ring, and the flat cover is also provided with a sealing structure matched with the sealing part;
the flat cover and the high-neck flange are detachably mounted through a lock ring, and the outer warping foot of the J-shaped sealing ring is in interference fit with the inner hole of the high-neck flange in a closed state of the flat cover.
By arranging the mounting part, the J-shaped sealing ring provided by the embodiment of the invention can provide enough initial sealing force no matter whether the flat cover is initially mounted or not, so that initial leakage is prevented; the length and the tortuosity of a sealing surface can be increased by arranging the sealing part matched with the sealing structure on the flat cover, so that the sealing performance of the sealing ring is improved; radial initial sealing force can be provided by arranging the outward warping foot, the use of the inward warping foot in the conventional sealing ring is reduced, and the material utilization rate is improved. The stress state of the sealing ring can be improved, the local extrusion and tearing of rubber are prevented, the service life of the sealing ring is prolonged, and sealing failure is prevented.
Drawings
Fig. 1 is a diagram illustrating a usage state of a J-shaped seal ring according to an embodiment of the present invention;
FIG. 2 is a partially enlarged view of a J-shaped seal ring according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a J-shaped seal ring according to an embodiment of the present invention.
In the drawings: 1. a J-shaped seal ring; 11. an installation part; 12. a sealing part; 13. tilting feet outwards; 14. a spring cage; 2. flattening the cover; 3. a neck flange; 4. a retainer ring; 5. and a locking ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 to 3, a structure diagram of a J-shaped seal ring 1 according to an embodiment of the present invention is provided, where any cross section of the J-shaped seal ring 1 includes: a mounting portion 11, a sealing portion 12 and an outward warping leg 13;
the mounting part 11 is matched with a sealing groove formed at the bottom of the flat cover 2 and used for mounting and fixing the J-shaped sealing ring 1;
the sealing part 12 is matched with a sealing structure at the bottom of the flat cover 2;
the raised feet 13 are in interference fit with the inner bore of the hubbed flange 3 for providing a radial initial sealing force.
In the embodiment of the present invention, the sealing ring is generally in a ring-shaped structure, and the cross section refers to a section obtained by cutting the ring-shaped structure through any plane passing through the axis of the ring-shaped structure. It will be appreciated that the annular configuration is merely a conventional shape of a seal ring and the invention is illustrated in this conventional shape only and is not limited to a J-seal ring 1 which is necessarily annular or which is necessarily of annular configuration.
In the embodiment of the present invention, it should be understood that the mounting portion 11, the sealing portion 12 and the outward tilting leg 13 are different portions of the cross section of the J-shaped sealing ring, and the three are connected into a whole to form the cross section of the J-shaped sealing ring.
The installation part 11 provided by the embodiment of the invention is matched with the sealing groove formed in the flat cover 2, and the installation and fixation of the J-shaped sealing ring are realized by embedding the installation part 11 into the sealing groove. In the invention, the sealing groove formed on the flat cover 2 is mainly used for mounting the J-shaped sealing ring 1, and the sealing groove is only named and does not represent the function of the groove as sealing; of course, the matching surface between the J-shaped sealing ring and the sealing groove has certain sealing function.
In the embodiment of the present invention, preferably, the diameter of the portion of the outward tilted leg 13 is smaller than the maximum diameter of the J-shaped seal ring 1. With reference to fig. 3, the arrangement is such that the J-ring 1 can be conveniently installed without the outward turned legs 13 being turned outwards when the hubbed flange 3 is installed.
In the embodiment of the invention, the sealing part 12 is a structure for realizing sealing between the J-shaped sealing ring and the flat cover 2; the outer warped foot 13 is a main structure for sealing between the J-shaped sealing ring and the high-neck flange 3, the outer warped foot 13 can be abutted against the inner wall of the high-neck flange 3, the outer warped foot 13 can be deformed after being installed through the limiting of the installation part 11, so that initial sealing force is formed, the size of the initial sealing force is related to the deformation of the outer warped foot 13 and the strength of the limiting effect of the installation part 11, and the reliable limiting is realized through the installation part 11, so that enough initial sealing force is provided. In the embodiment of the invention, the outward warped foot 13 can deform outwards under the pressure of gas or liquid in the pipeline, and the sealing effect between the outward warped foot and the high neck flange 3 is further increased.
According to the J-shaped sealing ring 1 provided by the embodiment of the invention, the installation part 11 is arranged, so that enough initial sealing force can be provided no matter whether the flat cover 2 is initially installed or not, and initial leakage is prevented; the length and the tortuosity of a sealing surface can be increased by arranging the sealing part 12 matched with the sealing structure on the flat cover 2, so that the sealing performance of the sealing ring is improved; radial initial sealing force can be provided by arranging the outward warping feet 13, the use of the inward warping feet in the conventional sealing ring is reduced, and the material utilization rate is improved. Can prevent that rubber part from extruding and tearing, improve the life of sealing washer, prevent sealed inefficacy.
As shown in fig. 2, as a preferred embodiment of the present invention, the mounting portion 11 is in interference fit with the sealing groove, and the mounting portion 11 has a quadrilateral structure.
In the embodiment of the invention, the interference fit installation can be realized by utilizing the deformation of the sealing ring material, and the interference fit can provide the sealing property of the installation surface. In the embodiment of the invention, the quadrilateral structure is approximate in structure, wherein the approximation comprises that a connecting line can be a straight line or a curve which is approximate to the straight line; the edge-to-edge corners may include small chamfers and are not strictly limited to four straight edges forming four corners. Furthermore, the quadrilateral structure may be a trapezoidal structure, and the short side (non-oblique side) of the trapezoidal structure is attached to the bottom edge of the sealing groove of the flat cover 2, which is beneficial to the installation of the J-shaped sealing ring.
As shown in fig. 3, as a preferred embodiment of the present invention, the sealing portion 12 includes a horizontal surface and a non-horizontal surface;
the horizontal plane is connected with the sealing side of the outward warped foot 13;
the non-horizontal surface is a side surface of the mounting portion 11.
In the embodiment of the invention, the sealing structure on the flat cover 2 also comprises a horizontal plane and a non-horizontal plane corresponding to the J-shaped sealing ring; in the embodiment of the present invention, the non-horizontal plane is preferably an inclined plane disposed obliquely to the horizontal plane rather than a vertical plane; preferably, the non-horizontal plane here may be a sloping side of the trapezoidal mounting portion 11, viewed in cross-section. Of course, this is merely one specific form of the seal portion 12 and is not intended to limit the scope of the present invention.
As shown in fig. 3, as a preferred embodiment of the present invention, the included angle between the horizontal plane and the non-horizontal plane is greater than or equal to 90 °.
As shown in fig. 3, as a preferred embodiment of the present invention, the bottom of the outward tilted leg 13 includes an arc segment and an inward chamfer.
In the embodiment of the invention, the outward tilting leg 13 can be prevented from being turned outwards when the J-shaped sealing ring is installed by arranging the inward chamfer.
As shown in fig. 3, as a preferred embodiment of the present invention, a spring skeleton 14 is embedded in the J-shaped sealing ring 1.
In the embodiment of the present invention, the spring frame 14 may increase the structural strength of the J-shaped sealing ring, preferably, the spring frame 14 may be made of a metal material, and the spring frame 14 is located in an inner region of the junction between the horizontal surface of the sealing portion 12 and the outer side of the outward tilted leg 13 in the above embodiment, and since the rubber in the region is easily deformed and extruded, the structural strength of the region may be enhanced by providing the spring frame 14 in the position. It should be understood that the spring frame 14 is not required, and another advantage of the present invention is that the use of the spring frame 14 can be eliminated, thereby reducing the cost, and the J-rings can be easily stacked and stored without the spring frame 14, and are not easily broken, but the strength can be improved by adding the spring frame 14, which provides two different alternatives of the present invention.
As a preferred embodiment of the invention, the J-shaped sealing ring 1 is made of fluororubber or nitrile rubber.
In the embodiment of the invention, the J-shaped sealing ring is preferably made of fluororubber or nitrile rubber, and the fluororubber or nitrile rubber has good chemical stability and is suitable for structures which are frequently required to be opened and closed.
As shown in fig. 1 to 3, an embodiment of the present invention further provides a J-shaped seal ring 1, where any cross section of the J-shaped seal ring 1 includes: a mounting portion 11, a sealing portion 12 and an outward warping leg 13;
the mounting part 11 is in interference fit with a sealing groove formed at the bottom of the flat cover 2 and used for mounting and fixing the J-shaped sealing ring 1, and the mounting part 11 is of a quadrilateral structure;
the sealing part 12 is matched with a sealing structure at the bottom of the flat cover 2, and the sealing part 12 comprises a horizontal plane and a non-horizontal plane; the horizontal plane is connected with the sealing side of the outward warped foot 13; the non-horizontal plane is one side surface of the mounting part 11, and an included angle between the horizontal plane and the non-horizontal plane is greater than or equal to 90 degrees;
the outer warped foot 13 is in interference fit with an inner hole of the hubbed flange 3 and used for providing radial initial sealing force, and the bottom of the outer warped foot 13 comprises an arc line section and an inward chamfer.
In the embodiments of the present invention, please refer to all the embodiments described above for the specific structure and function of the J-shaped sealing ring, which will not be described again in this embodiment. According to the J-shaped sealing ring 1 provided by the embodiment of the invention, the installation part 11 is arranged, so that enough initial sealing force can be provided no matter whether the flat cover 2 is initially installed or not, and initial leakage is prevented; the length and the tortuosity of a sealing surface can be increased by arranging the sealing part 12 matched with the sealing structure on the flat cover 2, so that the sealing performance of the sealing ring is improved; radial initial sealing force can be provided by arranging the outward warping feet 13, the use of the inward warping feet in the conventional sealing ring is reduced, and the material utilization rate is improved. Can prevent that rubber part from extruding and tearing, improve the life of sealing washer, prevent sealed inefficacy.
As shown in fig. 1 and 2, an embodiment of the present invention further provides a quick-open structure, where the quick-open structure includes:
the J-ring 1 according to any one of the above embodiments;
the bottom of the flat cover 2 is provided with a sealing groove matched with the mounting part 11 of the J-shaped sealing ring 1, the J-shaped sealing ring 1 is fixedly arranged at the bottom of the flat cover 2 through a retaining ring 4, and the flat cover 2 is further provided with a sealing structure matched with the sealing part 12;
the sealing structure comprises a high neck flange 3, wherein the flat cover 2 and the high neck flange 3 are detachably mounted through a lock ring 5, and the outer warped foot 13 of the J-shaped sealing ring 1 is in interference fit with an inner hole of the high neck flange 3 in a closed state of the flat cover 2.
In the embodiment of the present invention, the flat cover 2 and the neck flange 3 are both components in the existing quick-opening structure, and the structure and function thereof are not described again. Different from the prior art, the J-shaped sealing ring provided by the invention is fixed at the bottom of the flat cover 2 through the retaining ring 4, wherein the retaining ring 4 can be of an annular structure and is fixedly connected with the bottom of the flat cover 2 through screws and the like, and the mounting part 11 of the J-shaped sealing ring is pressed into the sealing groove of the flat cover 2 through the retaining ring 4 to realize fixed mounting. The lock ring 5 is connected with the high-neck flange 3 and the flat cover 2, can be opened or contracted, is opened in a working state, tightly supports the high-diameter flange 3, and cannot be opened by the flat cover 2; after pressure relief, the cover can be retracted inwards and separated from the neck flange 3, and the flat cover 2 can be opened. This is a direct application of the prior art and is not described in detail herein.
In the embodiment of the invention, the leap cover is also provided with a sealing structure, and the sealing structure is matched with a sealing part 12 of a J-shaped sealing ring to realize the sealing between the J-shaped sealing ring and the flat cover 2; and the cooperation of the outward warped foot 13 and the inner wall of the hubbed flange 3 realizes the sealing between the J-shaped sealing ring and the hubbed flange 3. For the structure and function of the J-shaped sealing ring, reference may be made to all the embodiments described above, and this embodiment is not described again.
The quick-opening structure provided by the embodiment of the invention comprises a J-shaped sealing ring 1, and the J-shaped sealing ring 1 can provide enough initial sealing force to prevent initial leakage no matter whether the flat cover 2 is initially installed or not by arranging the installation part 11; the length and the tortuosity of a sealing surface can be increased by arranging the sealing part 12 matched with the sealing structure on the flat cover 2, so that the sealing performance of the sealing ring is improved; radial initial sealing force can be provided by arranging the outward warping feet 13, the use of the inward warping feet in the conventional sealing ring is reduced, and the material utilization rate is improved. The stress state of the sealing ring can be improved, the local extrusion and tearing of rubber are prevented, the service life of the sealing ring is prolonged, and sealing failure is prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A J-ring, wherein any cross-section of the J-ring comprises: the mounting part, the sealing part and the outer warping foot;
the mounting part is matched with a sealing groove formed at the bottom of the flat cover and used for mounting and fixing the J-shaped sealing ring;
the sealing part is matched with a sealing structure at the bottom of the flat cover;
the outward warped foot is in interference fit with an inner hole of the hubbed flange and used for providing radial initial sealing force.
2. The J-ring seal of claim 1, wherein said mounting portion is an interference fit with said seal groove, said mounting portion having a quadrilateral configuration.
3. The J-ring seal of claim 1 wherein said seal portion includes a horizontal surface and a non-horizontal surface;
the horizontal plane is connected with the sealing side of the outward warped foot;
the non-horizontal surface is one side surface of the mounting part.
4. The J-ring seal of claim 3 wherein said horizontal plane is at an angle greater than or equal to 90 ° to said non-horizontal plane.
5. The J-ring as defined in claim 1 wherein the bottom of said upturned leg includes an arc segment and an inward chamfer.
6. The J-ring as defined in claim 1 wherein the J-ring has a spring skeleton embedded therein.
7. The J-ring seal of claim 1 wherein said J-ring seal is made of a fluoroelastomer or a nitrile rubber.
8. The J-ring seal of claim 1 wherein said raised foot portion has a diameter less than the largest diameter of said J-ring seal.
9. A J-ring, wherein any cross-section of the J-ring comprises: the mounting part, the sealing part and the outer warping foot;
the installation part is in interference fit with a sealing groove formed in the bottom of the flat cover and used for installing and fixing the J-shaped sealing ring, and the installation part is of a quadrilateral structure;
the sealing part is matched with a sealing structure at the bottom of the flat cover, and comprises a horizontal plane and a non-horizontal plane; the horizontal plane is connected with the sealing side of the outward warped foot; the non-horizontal plane is one side surface of the mounting part, and an included angle between the horizontal plane and the non-horizontal plane is larger than or equal to 90 degrees;
the outer warped foot is in interference fit with an inner hole of the high-neck flange and used for providing radial initial sealing force, and the bottom of the outer warped foot comprises an arc line section and an inward chamfer.
10. A quick-open structure, characterized in that it comprises:
the J-ring seal of any one of claims 1-9;
the bottom of the flat cover is provided with a sealing groove matched with the mounting part of the J-shaped sealing ring, the J-shaped sealing ring is fixedly arranged at the bottom of the flat cover through a retaining ring, and the flat cover is also provided with a sealing structure matched with the sealing part;
the flat cover and the high-neck flange are detachably mounted through a lock ring, and the outer warping foot of the J-shaped sealing ring is in interference fit with the inner hole of the high-neck flange in a closed state of the flat cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010150650.XA CN111197656A (en) | 2020-03-06 | 2020-03-06 | J-shaped sealing ring and quick opening structure using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010150650.XA CN111197656A (en) | 2020-03-06 | 2020-03-06 | J-shaped sealing ring and quick opening structure using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111197656A true CN111197656A (en) | 2020-05-26 |
Family
ID=70745502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010150650.XA Pending CN111197656A (en) | 2020-03-06 | 2020-03-06 | J-shaped sealing ring and quick opening structure using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111197656A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005848A (en) * | 1975-02-11 | 1977-02-01 | Fisher Controls Company, Inc. | Bidirectional pressure-assisted valve seal |
| DE102005041720A1 (en) * | 2004-12-13 | 2006-06-29 | Imo Momentenlager Gmbh | Sealing element for two parts rotating relative to each other has at least one second sealing ring fixed to second rotating part |
| CN204025649U (en) * | 2014-08-08 | 2014-12-17 | 王传坤 | Oil cylinder piston |
| CN204755916U (en) * | 2015-06-26 | 2015-11-11 | 南京金三力橡塑有限公司 | Exoskeletal rubber oil seal of lips mouth J type |
| CN205101554U (en) * | 2015-10-30 | 2016-03-23 | 中山凯旋真空技术工程有限公司 | Sealing device |
| CN105937624A (en) * | 2016-06-27 | 2016-09-14 | 江苏盛伟过滤设备有限公司 | Quick-opening blind plate sealing ring and quick-opening blind plate |
| CN212055825U (en) * | 2020-03-06 | 2020-12-01 | 北京化工大学 | J-shaped sealing ring and quick opening structure using same |
-
2020
- 2020-03-06 CN CN202010150650.XA patent/CN111197656A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005848A (en) * | 1975-02-11 | 1977-02-01 | Fisher Controls Company, Inc. | Bidirectional pressure-assisted valve seal |
| DE102005041720A1 (en) * | 2004-12-13 | 2006-06-29 | Imo Momentenlager Gmbh | Sealing element for two parts rotating relative to each other has at least one second sealing ring fixed to second rotating part |
| CN204025649U (en) * | 2014-08-08 | 2014-12-17 | 王传坤 | Oil cylinder piston |
| CN204755916U (en) * | 2015-06-26 | 2015-11-11 | 南京金三力橡塑有限公司 | Exoskeletal rubber oil seal of lips mouth J type |
| CN205101554U (en) * | 2015-10-30 | 2016-03-23 | 中山凯旋真空技术工程有限公司 | Sealing device |
| CN105937624A (en) * | 2016-06-27 | 2016-09-14 | 江苏盛伟过滤设备有限公司 | Quick-opening blind plate sealing ring and quick-opening blind plate |
| CN212055825U (en) * | 2020-03-06 | 2020-12-01 | 北京化工大学 | J-shaped sealing ring and quick opening structure using same |
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