CN220816753U - Swing type valve core structure suitable for vacuum valve - Google Patents
Swing type valve core structure suitable for vacuum valve Download PDFInfo
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- CN220816753U CN220816753U CN202322315524.7U CN202322315524U CN220816753U CN 220816753 U CN220816753 U CN 220816753U CN 202322315524 U CN202322315524 U CN 202322315524U CN 220816753 U CN220816753 U CN 220816753U
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- valve
- valve core
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- disc
- core structure
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- 238000007789 sealing Methods 0.000 claims abstract description 108
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a swinging valve core structure suitable for a vacuum valve, which belongs to the technical field of valve cores and comprises a tail cone, a sealing disc and a disc spring, wherein the tail cone is arranged on the back surface of the sealing disc, a sealing ring surface is formed on the outer surface of the sealing disc, a main shaft is connected to the inner side of the sealing disc, a valve rod of the vacuum valve is sleeved in the middle part of the main shaft, clamping gaskets are respectively arranged on two sides of the valve rod, and the disc spring is arranged between the clamping gaskets and the sealing disc. The beneficial effects of the utility model are as follows: the valve rod of the vacuum valve is connected with the swing valve core, the sealing ring surface on the valve core sealing disc is tightly pressed against the gasket on the valve body in the swing process, so that the valve channel is sealed, the whole valve core is stable in structure and small in fluid resistance, the valve core can be finely adjusted through the disc spring arranged between the sealing disc and the valve rod, the valve core has self-adaptability to the sealing ring surface, and the valve core can be finely adjusted to be completely attached to the sealing ring surface through the valve core, so that the reliable sealing of a powder medium is realized.
Description
Technical Field
The utility model relates to the technical field of valve cores, in particular to a swing type valve core structure suitable for a vacuum valve.
Background
The vacuum valve is a vacuum system element used for changing the direction of air flow, adjusting the air flow and cutting off or connecting a pipeline in the vacuum system, and is an important device in the uranium enrichment system. At present, a sliding valve core structure is adopted for a vacuum valve used in the system, sliding ways are arranged at two ends of a valve body, the valve core is shifted through a valve rod, and the valve core moves back and forth on the sliding ways to realize opening and closing of the valve.
The vacuum valve is mainly used in a section and a unit system in a centrifugal factory, and has the main effects that when the section and the unit are abnormal, the section or the unit system is connected by interlocking action with an accident protection sensor in the system to realize the bypass of the section or the unit system, and the bypass pipeline is opened in time to cut off the abnormal part of the system so as to meet the requirements of accident treatment and cascading operation.
The sliding valve core structure is used for a gaseous medium environment to realize good sealing, but in a medium containing solid powder, as the powder medium possibly adheres to a sealing ring surface to form an annular gap with a valve core with a fixed track, the sealing performance is affected, meanwhile, the prior art also lacks a swinging valve core structure suitable for a vacuum valve, and the stability and the durability of the valve core structure are required to be improved.
Disclosure of utility model
In order to overcome the problems that a sliding valve core structure in the prior art forms an annular gap with a valve core with a fixed track in a medium containing solid powder, so that the tightness of the valve core is influenced, a swinging valve core structure suitable for a vacuum valve is also lacking in the prior art, the stability and durability of the valve core structure are improved, and the like.
The valve rod of the vacuum valve is connected by the swing valve core for use, the sealing ring surface on the valve core sealing disc is tightly pressed against the gasket on the valve body in the swing process, the valve channel sealing is realized, the tail cone of the valve core is connected with the sealing disc through a bolt, the whole valve core is stable in structure and has streamline shape, the fluid resistance is small, the valve core can be finely adjusted through the disc spring arranged between the valve core sealing disc and the valve rod, the valve core has self-adaptability to the sealing ring surface, and the reliable sealing of a powder medium is realized by the fine adjustment of the valve core and the complete lamination of the sealing ring surface.
Preferably, the middle part of the sealing disc is hemispherical, and the edge of the sealing disc is outwards protruded to form the spherical sealing ring surface.
Preferably, an adjusting gasket is arranged between the clamping gasket and the disc spring, and two ends of the disc spring are respectively tightly attached to the inner wall of the sealing disc and the adjusting gasket.
The valve rod can be clamped through the clamping gaskets arranged on two sides of the valve rod, the radial position of the sealing disc is positioned, the axial position of the valve rod on the sealing disc is locked and positioned through the adjusting gaskets and the nuts, the axial and radial movements of the sealing disc on the valve rod are limited, and the stable valve core structure is realized.
Preferably, the two clamping gaskets are respectively provided with saw teeth at one side close to the valve rod.
Preferably, one end of the main shaft far away from the sealing disc is connected with a nut, and the nut is connected with a bolt penetrating through the outer surface of the tail cone through a bolt hole arranged in the nut.
Through the arrangement of the valve core tail cone, the valve core can play a role in guiding flow, and after being sleeved with the sealing disc, the stability of the valve core structure can be enhanced under the action of the stop washer.
Preferably, a sleeve is arranged at the bottom of the valve rod, the inner diameter of the sleeve is larger than the outer diameter of the main shaft, and two sides of the sleeve are tightly attached to the two clamping gaskets through a disc spring and a nut.
Preferably, a movable groove is formed at the position, right above the main shaft, of the top of the tail cone, and the valve rod is inserted into the movable groove.
Preferably, a plurality of mounting holes are formed in the middle of the outer surface of the sealing disc.
Preferably, a stop washer is mounted between the bolt and the outer surface of the caudal vertebra.
The counter force of the disc spring in the valve core can play a role in preventing the nut from loosening, and the stability and effectiveness of the structure are ensured.
The beneficial effects are that:
the technical scheme of the utility model has the following beneficial effects:
(1) The valve rod of the vacuum valve is connected by the swing valve core for use, the sealing ring surface on the valve core sealing disc is tightly pressed against the gasket on the valve body in the swing process, the valve channel sealing is realized, the tail cone of the valve core is connected with the sealing disc through a bolt, the whole valve core is stable in structure and has streamline shape, the fluid resistance is small, the valve core can be finely adjusted through the disc spring arranged between the valve core sealing disc and the valve rod, the valve core has self-adaptability to the sealing ring surface, and the reliable sealing of a powder medium is realized by the fine adjustment of the valve core and the complete lamination of the sealing ring surface.
(2) The valve rod can be clamped through the clamping gaskets arranged on two sides of the valve rod, the radial position of the sealing disc is positioned, the axial position of the valve rod on the sealing disc is locked and positioned through the adjusting gaskets and the nuts, the axial and radial movements of the sealing disc on the valve rod are limited, and the stable valve core structure is realized.
(3) Through the arrangement of the valve core tail cone, the valve core can play a role in guiding flow, and after being sleeved with the sealing disc, the stability of the valve core structure can be enhanced under the action of the stop washer.
(4) The counter force of the disc spring in the valve core can play a role in preventing the nut from loosening, and the stability and effectiveness of the structure are ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the swing valve core structure of the present utility model suitable for use in a vacuum valve;
FIG. 2 is a schematic illustration of the interior of a swing valve core structure of the present utility model adapted for use in a vacuum valve;
FIG. 3 is a schematic view of the back side of the swing valve core structure of the present utility model suitable for use in a vacuum valve;
FIG. 4 is a schematic front elevational view of a sealing disk of a swing type valve core structure of the present utility model adapted for use in a vacuum valve;
FIG. 5 is a schematic front view of the swing valve core structure tail cone applicable to the vacuum valve;
FIG. 6 is a schematic diagram of the connection structure of the sealing disk of the swing valve core structure of the vacuum valve;
FIG. 7 is a schematic diagram of the connection of the spindle and nut of the swing valve core structure of the present utility model to a vacuum valve;
Fig. 8 is a schematic structural view of a clamping gasket of a swing type valve core structure suitable for a vacuum valve.
In the figure: 1. caudal vertebrae; 2. a sealing plate; 3. a movable groove; 4. a valve stem; 5. a disc spring; 6. adjusting the gasket; 7. clamping the gasket; 8. a nut; 9. a bolt; 10. a main shaft; 11. a seal ring; 12. bolt holes; 13. a mounting hole; 14. a stop washer; 15. saw teeth.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
The valve rod of the vacuum valve is connected with the swing type valve core to be used, the sealing ring surface on the valve core sealing disc is tightly pressed against the gasket on the valve body in the swing process, the valve channel sealing is realized, the tail cone of the valve core is connected with the sealing disc through a bolt, the whole valve core is stable in structure and has streamline shape, the fluid resistance is small, the valve core can be finely adjusted through the disc spring arranged between the valve core sealing disc and the valve rod, the valve core has self-adaptability to the sealing ring surface, and the reliable sealing of a powder medium is realized through the fine adjustment of the valve core and the complete lamination of the sealing ring surface. The specific implementation mode is as follows:
As shown in fig. 1 to 8, a swing valve core structure suitable for a vacuum valve comprises a tail cone 1, a sealing disc 2 and a disc spring 5, wherein the tail cone 1 is arranged on the back surface of the sealing disc 2, a sealing ring surface 11 is formed on the outer surface of the sealing disc 2, a main shaft 10 is connected to the inner side of the sealing disc 2, a valve rod 4 of the vacuum valve is sleeved in the middle of the main shaft 10, clamping gaskets 7 are respectively arranged on two sides of the valve rod 4, and the disc spring 5 is arranged between the clamping gaskets 7 and the sealing disc 2. The valve rod 4 of the vacuum valve is connected by the swing type valve core for use, the sealing ring surface 11 on the sealing disc 2 of the valve core is tightly pressed against the gasket on the valve body in the swing process, the valve channel sealing is realized, the tail cone 1 of the valve core is connected with the sealing disc 2 through the bolt 9, the whole valve core is stable in structure and has streamline shape, the fluid resistance is small, the valve core can be finely adjusted through the disc spring 5 arranged between the sealing disc 2 of the valve core and the valve rod 4, the valve core has self-adaptability to the sealing ring surface 11, and the reliable sealing of a powder medium is realized through the fine adjustment of the valve core and the complete lamination of the sealing ring surface 11.
The middle part of sealing disk 2 is hemispherical, and the outside arch of edge of sealing disk 2 has spherical seal ring face 11, and spherical seal is the line seal, and the sealing force that needs is littleer, and sealing performance is better for the sealed effect of case obtains improving greatly.
An adjusting gasket 6 is arranged between the clamping gasket 7 and the disc spring 5, and two ends of the disc spring 5 are respectively tightly attached to the inner wall of the sealing disc 2 and the adjusting gasket 6. The valve rod 4 can be clamped through the clamping gaskets 7 arranged on two sides of the valve rod 4, the radial position of the sealing disc 2 is positioned, the axial position of the valve rod 4 on the sealing disc 2 is locked through the adjusting gaskets 6 and the nuts 8, and the axial and radial movement of the sealing disc 2 on the valve rod 4 is limited, so that the valve core is stable in structure.
The two clamping gaskets 7 are respectively provided with saw teeth 15 on one side close to the valve rod 4, and the clamping gaskets 7 can be used for clamping the valve rod 4 more firmly through the saw teeth 15, so that the anti-skid function can be achieved.
The end of the main shaft 10 remote from the sealing disk 2 is connected with a nut 8, and the nut 8 is connected with a bolt 9 penetrating through the outer surface of the tail cone 1 through a bolt hole 12 arranged in the nut 8. Through the arrangement of the valve core tail cone 1, the valve core can play a role in diversion, and after being sleeved with the sealing disc 2, the stability of the valve core structure can be enhanced under the action of the stop washer 14.
The bottom of valve rod 4 is provided with the sleeve pipe, and the internal diameter of sleeve pipe is greater than the external diameter of main shaft 10, and the telescopic both sides pass through disc spring 5 and nut 8 and two clamp gasket 7 closely laminating, and restricted by the valve structure, sealing disk 2 need pass valve rod 4 installation in the valve body, therefore, the sleeve pipe of valve rod 4 must be greater than the diameter of main shaft 10 on sealing disk 2, and the diameter difference brings the clearance between valve rod 4 and the sealing disk 2, and the clearance can produce sealing disk 2 radial motion.
The top of the tail cone 1 is provided with a movable groove 3 at a position right above the main shaft 10, a valve rod 4 is inserted in the movable groove 3, and the valve rod 4 can conveniently penetrate through the movable groove 3 and then is connected with a valve body gas structure.
The middle part of the outer surface of the sealing disk 2 is provided with a plurality of mounting holes 13, and the valve core can be conveniently mounted and fixed in the valve body through the mounting holes 13.
A stop washer 14 is arranged between the bolt 9 and the outer surface of the tail cone 1, the counter force of the disc spring 5 in the valve core can play a role in preventing the nut 8 from loosening, the stable and effective structure is ensured, and the firmness and the stability of the connection of the bolt 9 and the tail cone 1 can be enhanced through the stop washer 14.
Working principle: the valve rod of the vacuum valve is connected by the swing valve core, the spherical sealing ring surface on the valve core sealing disk is used in the swing process by compressing the gasket on the valve body, the valve channel sealing is realized, the tail cone of the valve core is connected with the sealing disk by a bolt, the whole valve core is stable in structure and has streamline shape, and small in fluid resistance, the valve core can be finely adjusted by the disc spring arranged between the valve core sealing disk and the valve rod, the valve core has self-adaptability to the sealing ring surface, the valve core can be finely adjusted to be completely attached to the sealing ring surface by the valve core, the reliable sealing of powder media is realized, the valve rod can be clamped by the clamping gaskets arranged on two sides of the valve rod, the radial position of the sealing disk is positioned, the axial position of the valve rod on the sealing disk is locked by the adjusting gaskets and the nuts, the axial and radial movement of the sealing disk is limited, the stable valve core structure is realized, the valve core tail cone is arranged, the flow guiding effect can be realized, the stability of the valve core structure can be enhanced by the disc is sleeved with the sealing disk, the counter-force inside the valve core can play the anti-loosening effect on the nuts, and the stable and effective structure is ensured.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The utility model provides a swing type case structure suitable for vacuum valve, its characterized in that, including tail cone (1), sealing disk (2) and dish spring (5), tail cone (1) are installed in the back of sealing disk (2), the surface of sealing disk (2) is formed with sealed anchor ring (11), the inboard of sealing disk (2) is connected with main shaft (10), the middle part cover of main shaft (10) is equipped with vacuum valve's valve rod (4), the both sides of valve rod (4) are provided with respectively and press from both sides tight gasket (7), press from both sides tight gasket (7) with be provided with dish spring (5) between sealing disk (2).
2. A valve core structure according to claim 1, characterized in that the middle part of the sealing disc (2) is hemispherical, and the edge of the sealing disc (2) protrudes outwards to form the spherical sealing ring surface (11).
3. The swing valve core structure suitable for the vacuum valve according to claim 1, wherein an adjusting gasket (6) is arranged between the clamping gasket (7) and the disc spring (5), and two ends of the disc spring (5) are respectively tightly attached to the inner wall of the sealing disc (2) and the adjusting gasket (6).
4. A valve core structure according to claim 1, characterized in that the two clamping washers (7) are provided with serrations (15) on the side close to the valve stem (4).
5. The swing valve core structure suitable for a vacuum valve according to claim 1, wherein one end of the main shaft (10) far away from the sealing disc (2) is connected with a nut (8), and the nut (8) is connected with a bolt (9) penetrating through the outer surface of the tail cone (1) through a bolt hole (12) arranged in the nut.
6. The swing valve core structure suitable for a vacuum valve according to claim 5, wherein a sleeve is arranged at the bottom of the valve rod (4), the inner diameter of the sleeve is larger than the outer diameter of the main shaft (10), and two sides of the sleeve are tightly attached to the two clamping gaskets (7) through a disc spring (5) and a nut (8).
7. The swing valve core structure suitable for a vacuum valve according to claim 1, wherein a movable groove (3) is formed at a position right above the main shaft (10) at the top of the tail cone (1), and the valve rod (4) is inserted into the movable groove (3).
8. A swing valve core structure suitable for a vacuum valve according to claim 1, characterized in that the middle part of the outer surface of the sealing disc (2) is provided with a plurality of mounting holes (13).
9. A valve core structure according to claim 5, characterized in that a stop washer (14) is mounted between the bolt (9) and the outer surface of the tail cone (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322315524.7U CN220816753U (en) | 2023-08-28 | 2023-08-28 | Swing type valve core structure suitable for vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322315524.7U CN220816753U (en) | 2023-08-28 | 2023-08-28 | Swing type valve core structure suitable for vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816753U true CN220816753U (en) | 2024-04-19 |
Family
ID=90705226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322315524.7U Active CN220816753U (en) | 2023-08-28 | 2023-08-28 | Swing type valve core structure suitable for vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816753U (en) |
-
2023
- 2023-08-28 CN CN202322315524.7U patent/CN220816753U/en active Active
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