CN217301617U - Novel vacuum valve structure - Google Patents
Novel vacuum valve structure Download PDFInfo
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- CN217301617U CN217301617U CN202221302298.8U CN202221302298U CN217301617U CN 217301617 U CN217301617 U CN 217301617U CN 202221302298 U CN202221302298 U CN 202221302298U CN 217301617 U CN217301617 U CN 217301617U
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Abstract
The utility model discloses a novel vacuum valve structure, which comprises a valve cover, a valve body, an adjusting valve core, a fixed valve seat and a transmission shaft; a medium channel is formed in the valve body, the fixed valve seat is installed in the medium channel, and the adjusting valve core sequentially penetrates through the valve cover and the valve body; the adjusting valve core is arranged at the transmission end of the transmission shaft, and the transmission shaft drives the adjusting valve core to reciprocate so as to close or open the medium channel; a metal sealing ring is arranged between the valve cover and the valve body, and the valve cover and the valve body are screwed and fixed through flange bolts; the upper surface and the lower surface of the metal sealing ring are both provided with a plurality of saw-toothed bulges, and the bulges deform under the extrusion of external force; the utility model discloses in, when the flange bolt was screwed up, the bellied prong in metal seal surface received the extrusion and takes place to warp, can ensure the abundant sealing between valve gap and the valve body, guarantees the vacuum between valve gap and the valve body.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to novel vacuum valve structure.
Background
The existing vacuum valve has more use times, the sealing position can be damaged, the leakage conductance is increased, and the processing and the assembly also need to be very fine.
A vacuum valve is a device that focuses on high insulation performance of a vacuum and performs on/off of current in a vacuum insulated state. In order to realize the on/off of the current in the vacuum valve while maintaining the high vacuum state in the valve, a bellows capable of expanding and contracting is disposed on the movable side, and the movable side is operated while maintaining a sealed state by the bellows.
The inside of the corrugated pipe is the atmosphere or the pressurized insulating gas, and the outside of the corrugated pipe is the inside of the vacuum valve, so the corrugated pipe is vacuum; in actual use, the corrugated pipe cracks due to the service life, and the sealing position of the vacuum valve is abraded after the use times of the vacuum valve are increased, so that the requirement on the sealing performance of the vacuum valve is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel vacuum valve structure.
In order to achieve the purpose of the utility model, the utility model adopts the technical proposal that: a novel vacuum valve structure comprises a valve cover, a valve body, an adjusting valve core, a fixed valve seat and a transmission shaft; a medium channel is formed in the valve body, the fixed valve seat is installed in the medium channel, and the adjusting valve core sequentially penetrates through the valve cover and the valve body; the adjusting valve core is arranged at the transmission end of the transmission shaft, and the transmission shaft drives the adjusting valve core to reciprocate so as to close or open the medium channel; a metal sealing ring is arranged between the valve cover and the valve body, and the valve cover and the valve body are screwed and fixed through flange bolts; the upper surface and the lower surface of the metal sealing ring are both provided with a plurality of saw-toothed bulges which deform under the extrusion of external force.
In the in-service use, when installation valve gap and valve body, the flange bolt is screwed up, and the bellied prong in metal seal surface receives the extrusion and takes place to warp, can ensure the abundant sealed between valve gap and the valve body, guarantees the vacuum between valve gap and the valve body.
Preferably, the valve further comprises a bellows which is arranged around the regulating valve core in an elastically contracted and extended manner.
Preferably, a first connecting part is formed at the top end of the corrugated pipe, and the first connecting part is welded on the lower surface of the valve cover in an argon arc mode; the bellows bottom forms the second connecting portion, first connecting portion argon arc welding is in the valve head department of adjusting valve core.
Preferably, the metal sealing ring and the bulge thereof are made of aluminum, have good ductility and can better adapt to the shapes of the valve cover and the valve body.
Preferably, the valve rod of the regulating valve core protrudes along the circumferential direction to form a limiting part.
Preferably, the bottom end of the valve cover is provided with a limiting groove corresponding to the limiting part.
When the medium channel is in a completely opened state, the limiting part is completely matched with the limiting groove to realize self-locking; namely, when the medium channel is in a closed state, the distance between the limiting groove and the limiting part is the stroke of the regulating valve core.
Preferably, a sealing gasket is arranged between the fixed valve seat and the valve body; the sealing gasket adopts the technology of PTFE + NI powder, so that the vacuum rate of the vacuum valve can be effectively ensured.
Preferably, a first sealing ring and a second sealing ring which are arranged up and down are arranged at the matching position between the valve cover and the adjusting valve core, the first sealing ring is arranged close to the top end of the valve cover, and the second sealing ring is arranged close to the bottom end of the valve cover; when the bellows produces the crack because of the life-span reason, first sealing washer, second sealing washer and metal seal circle will guarantee that the vacuum valve does not produce outer the hourglass.
Preferably, the stroke of the regulating valve core is smaller than the distance between the first sealing ring and the second sealing ring; and the sealing between the regulating valve core and the valve cover is ensured.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the utility model discloses a novel vacuum valve structure, when installing the valve cover and the valve body, the flange bolt is screwed, the tooth point of the surface protrusion of the metal sealing ring is extruded to deform, the sufficient sealing between the valve cover and the valve body can be ensured, and the vacuum degree between the valve cover and the valve body is ensured;
2. the utility model discloses a novel vacuum valve structure, which can realize the secondary sealing between a cover and a valve body through the secondary tightening of a flange bolt without replacement;
3. the utility model discloses a novel vacuum valve structure, the two ends of the corrugated pipe are respectively welded with a valve cover and an adjusting valve core through argon arc, the welding is more convenient, and the sealing effect is better;
4. the utility model discloses a novel vacuum valve structure, which has simple installation, strong reliability and long service life; the cost is low, and the method is suitable for popularization and application.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of the metal sealing ring of the present invention;
fig. 3 is the structure diagram of the matching position of the valve cover and the adjusting valve core of the present invention.
Wherein: 1. a valve cover; 2. a valve body; 3. adjusting the valve core; 4. a fixed valve seat; 5. a bellows; 6. a drive shaft; 7. a gasket; 8. a first connection portion; 9. a second connecting portion; 10. a metal seal ring; 11. a flange bolt; 12. a protrusion; 13. a limiting part; 14. a limiting groove; 15. a first seal ring; 16. and a second seal ring.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understandable, the present invention is further described in detail with reference to the accompanying drawings and the detailed description, wherein the drawings are simplified schematic drawings, which illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention, and it is to be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example 1
Referring to fig. 1, 2 and 3, a novel vacuum valve structure includes a valve cover 1, a valve body 2, an adjusting valve core 3, a fixed valve seat 4, a bellows 5 and a transmission shaft 6; a medium channel is formed in the valve body 2, the fixed valve seat 4 is installed in the medium channel, and the adjusting valve core 3 sequentially penetrates through the valve cover 1 and the valve body 2; the adjusting valve core 3 is arranged at the transmission end of the transmission shaft 6, and the transmission shaft 6 drives the adjusting valve core 3 to reciprocate so as to close or open the medium channel.
And a sealing gasket 7 is arranged between the fixed valve seat 4 and the valve body 2 to realize the sealing between the fixed valve seat 4 and the valve body 2 and ensure the vacuum degree of the fixed valve seat 4 and the valve body 2.
The bellows 5 is arranged around the regulating valve core 3 in an elastic contraction and extension mode;
a first connecting part 8 is formed at the top end of the corrugated pipe 5, and the first connecting part 8 is welded on the lower surface of the valve cover 1 in an argon arc manner; the bottom of bellows 5 forms second connecting portion 9, 8 argon arc welding of first connecting portion are in the valve head department of adjusting valve core 3, the valve rod part of adjusting valve core 3 runs through the top setting of bellows 5.
A metal sealing ring 10 is arranged between the valve cover 1 and the valve body 2, and the valve cover 1 and the valve body 2 are screwed and fixed through a flange bolt 11; the upper surface and the lower surface of the metal sealing ring 10 are both provided with a plurality of saw-toothed protrusions 12, and the protrusions 12 deform under the extrusion of external force.
The metal sealing ring 10 and the bulge 12 thereof are made of aluminum, have good ductility and can better adapt to the shapes of the valve cover 1 and the valve body 2.
In the in-service use, when installing valve gap 1 and valve body 2, flange bolt 11 screws up, and the protruding 12 prong in metal seal 10 surface receives the extrusion to take place to warp, can ensure the abundant sealed between valve gap 1 and the valve body 2, guarantees the vacuum between valve gap 1 and the valve body 2.
A valve rod of the adjusting valve core 3 is protruded along the circumferential direction of the valve rod to form a limiting part 13, so that the adjusting valve core 3 is prevented from being separated; correspondingly, the bottom end of the valve cover 1 is provided with a limit groove 14 corresponding to the limit part 13, so that the guide of the regulating valve core 3 is facilitated, and when the medium channel is in a completely opened state, the limit part 13 is completely matched with the limit groove 14, so that self-locking is realized.
When the valve head of the regulating valve core 3 is installed in cooperation with the fixed valve seat 4, that is, the medium channel is in a closed state, the distance between the limiting groove 14 and the limiting part 13 is the stroke of the regulating valve core 3.
The valve cap 1 is provided with a first sealing ring 15 and a second sealing ring 16 which are vertically arranged at the matching position between the valve cap 1 and the adjusting valve core 3, the first sealing ring 15 is arranged close to the top end of the valve cap 1, and the second sealing ring 16 is arranged close to the bottom end of the valve cap 1. The stroke of the regulating valve core 3 is smaller than the distance between the first sealing ring 15 and the second sealing ring 16.
When the corrugated pipe 5 cracks due to the service life, the first sealing ring 15, the second sealing ring 16 and the metal sealing ring 10 ensure that the vacuum valve does not leak.
The first sealing ring 15 and the second sealing ring 16 are O-shaped sealing rings, and the sealing gasket 7 adopts the technology of PTFE + NI powder, so that the vacuum rate of the vacuum valve can be effectively ensured.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A novel vacuum valve structure is characterized by comprising
The valve comprises a valve cover (1), a valve body (2), an adjusting valve core (3), a fixed valve seat (4) and a transmission shaft (6);
a medium channel is formed in the valve body (2), the fixed valve seat (4) is installed in the medium channel, and the adjusting valve core (3) sequentially penetrates through the valve cover (1) and the valve body (2); the adjusting valve core (3) is arranged at the transmission end of the transmission shaft (6), and the transmission shaft (6) drives the adjusting valve core (3) to reciprocate so as to realize the closing or opening of the medium channel;
a metal sealing ring (10) is arranged between the valve cover (1) and the valve body (2), and the valve cover (1) and the valve body (2) are screwed and fixed through flange bolts (11); a plurality of saw-toothed protrusions (12) are formed on the upper surface and the lower surface of the metal sealing ring (10), and the protrusions (12) deform under the extrusion of external force.
2. A new vacuum valve structure according to claim 1, characterized by further comprising a bellows (5), said bellows (5) being arranged around said regulating valve core (3) in an elastically contracting and expanding manner.
3. A novel vacuum valve structure as claimed in claim 2, characterized in that the top end of the bellows (5) forms a first connection portion (8), and the first connection portion (8) is argon arc welded on the lower surface of the valve cover (1); bellows (5) bottom forms second connecting portion (9), first connecting portion (8) argon arc welding is in the valve head department of adjusting valve core (3).
4. A new vacuum valve structure according to claim 1, characterized in that the metal sealing ring (10) and its protrusions (12) are made of aluminum.
5. A novel vacuum valve structure as claimed in claim 1, characterized in that the valve rod of the regulating valve core (3) is provided with a limiting part (13) along the circumferential projection (12).
6. A novel vacuum valve structure as claimed in claim 5, characterized in that the bottom end of the valve cover (1) is provided with a limit groove (14) corresponding to the limit portion (13).
7. A new vacuum valve structure, according to claim 1, characterized in that a sealing gasket (7) is provided between said fixed valve seat (4) and the valve body (2).
8. A novel vacuum valve structure as claimed in claim 1, wherein a first sealing ring (15) and a second sealing ring (16) are installed at the matching position between the valve cover (1) and the regulating valve core (3), the first sealing ring (15) is arranged near the top end of the valve cover (1), and the second sealing ring (16) is arranged near the bottom end of the valve cover (1).
9. A new vacuum valve construction, according to claim 8, characterized in that the stroke of the regulating valve core (3) is smaller than the distance between the first sealing ring (15) and the second sealing ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221302298.8U CN217301617U (en) | 2022-05-27 | 2022-05-27 | Novel vacuum valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221302298.8U CN217301617U (en) | 2022-05-27 | 2022-05-27 | Novel vacuum valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217301617U true CN217301617U (en) | 2022-08-26 |
Family
ID=82919239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221302298.8U Active CN217301617U (en) | 2022-05-27 | 2022-05-27 | Novel vacuum valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217301617U (en) |
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2022
- 2022-05-27 CN CN202221302298.8U patent/CN217301617U/en active Active
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