CN220622892U - Switching device and vacuumizing system - Google Patents
Switching device and vacuumizing system Download PDFInfo
- Publication number
- CN220622892U CN220622892U CN202322365971.3U CN202322365971U CN220622892U CN 220622892 U CN220622892 U CN 220622892U CN 202322365971 U CN202322365971 U CN 202322365971U CN 220622892 U CN220622892 U CN 220622892U
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- Prior art keywords
- boss
- vacuum
- valve body
- locking nut
- sealing
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 70
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 238000010030 laminating Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to the technical field of vacuum valves, in particular to a switching device and a vacuum pumping system. The switching device comprises: a first seal, a second seal, and a lock nut; the first sealing element comprises a first pipe body and a first boss formed by extending outwards in the radial direction along the axial direction, the second sealing element comprises a second pipe body and a second boss formed by extending outwards in the radial direction, the locking nut is tubular, one end of the locking nut is provided with an internal thread, and the other end of the locking nut is provided with a third boss formed by extending inwards in the radial direction; the vacuumizing valve body is provided with external threads, the locking nut is connected with the vacuumizing valve body through threads, the vacuumizing valve body is inserted into the first pipe body, the first boss is abutted to the port of the vacuumizing valve body, the first O-shaped sealing ring is sleeved on the vacuum joint sleeve, the first boss and the second boss are located on the upper side and the lower side of the first O-shaped sealing ring, and the second boss is attached to the third boss. The embodiment of the utility model provides a switching device which can connect vacuumizing valve bodies with different calibers with a vacuum connector.
Description
Technical Field
The utility model relates to the technical field of vacuum valves, in particular to a switching device and a vacuum pumping system.
Background
Vacuum environment is an environment indispensable to the current scientific research institute.
In the related art, the vacuumizing mainly depends on the matching of a vacuumizing valve body and a vacuum connector to vacuumize. However, the vacuum connectors have a large number of specifications, and the vacuum-pumping valve body cannot be matched with the vacuum connectors with various specifications.
Therefore, in order to solve the above-mentioned drawbacks, there is an urgent need for an adapter device that can connect vacuum-pumping valve bodies having different diameters to a vacuum joint.
Disclosure of Invention
The embodiment of the utility model provides a switching device which can connect vacuumizing valve bodies with different calibers with a vacuum connector.
In a first aspect, an embodiment of the present utility model provides an adapter device for connecting a vacuum valve body and a vacuum connector, the adapter device including: a first seal, a second seal, and a lock nut;
the first sealing piece comprises a first pipe body and a first boss formed by extending outwards in the radial direction along the axial direction, the second sealing piece comprises a second pipe body and a second boss formed by extending outwards in the radial direction, the locking nut is tubular, one end of the locking nut is provided with an internal thread, and the other end of the locking nut is provided with a third boss formed by extending inwards in the radial direction;
the utility model discloses a vacuum valve body, including the vacuum valve body, the locking nut, the vacuum valve body is provided with the external screw thread, lock nut with the vacuum valve body passes through threaded connection, first body inserts the vacuum valve body, first boss with the port butt of vacuum valve body, the vacuum joint cover is equipped with first O type sealing washer, first boss with the second boss is located the upper and lower both sides of first O type sealing washer, the second boss with the laminating of third boss makes through screwing lock nut first sealing member with second sealing member presss from both sides tightly first O type sealing washer, and makes first boss with the sealed laminating of one end of vacuum valve body.
In one possible design, a second O-ring seal is provided between the first boss and the evacuated valve body.
In a second aspect, a vacuum-pumping system, based on the adapter device of any one of the first aspects, comprises: the vacuum valve body, the vacuum connector and the switching device are used for connecting the vacuum valve body and the vacuum connector in a sealing mode.
Compared with the prior art, the utility model has at least the following beneficial effects:
in this embodiment, the upper portion of lock nut passes through threaded connection with the link of evacuation valve body, and lock nut's lower part is provided with the third boss of inwards extending, and the port of third boss and evacuation valve body link is with first sealing member, second sealing member centre gripping, and first sealing member and second sealing member are with first O type sealing washer centre gripping, and first O type sealing ring snare is located the vacuum joint outside, so, has realized the sealing connection of evacuation valve body and vacuum joint. The locking nut is screwed to enable the vacuumizing valve body and the vacuum connector to be stably connected, the first boss and the vacuumizing valve body are tightly attached, and sealing connection between the first sealing piece and the vacuumizing valve body is achieved. The first sealing element and the second sealing element are enabled to extrude the first O-shaped sealing ring to deform through screwing the locking nut, and then sealing connection among the first sealing element, the second sealing element and the vacuum connector is achieved. The switching device provided by the utility model can be suitable for vacuum connectors with different calibers, and when the vacuum connectors with different calibers are connected, the connection can be completed only by selecting the first sealing piece and the second sealing piece according to the vacuum connectors so that the outer diameter of the vacuum connectors is matched with the inner diameters of the first sealing piece and the second sealing piece.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a switching device and a vacuum pumping system provided by the utility model.
In the figure:
100-vacuumizing a valve body;
200-vacuum joint;
1-a first seal;
11-a first tube;
12-a first boss;
2-a second seal;
21-a second tube;
22-a second boss;
3-locking nuts;
31-a third boss;
4-a first O-shaped sealing ring;
and 5-a second O-shaped sealing ring.
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, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
In the description of embodiments of the present utility model, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance unless explicitly specified or limited otherwise; the term "plurality" means two or more, unless specified or indicated otherwise; the terms "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, it should be understood that the terms "upper", "lower", and the like used in the embodiments of the present utility model are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present utility model. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.
As shown in fig. 1, an embodiment of the present utility model provides a switching device for connecting a vacuum valve body 100 and a vacuum joint 200, the switching device comprising: a first seal 1, a second seal 2 and a lock nut 3;
the first sealing element 1 comprises a first pipe body 11 and a first boss 12 formed by extending outwards along the radial direction, the second sealing element 2 comprises a second pipe body 21 and a second boss 22 formed by extending outwards along the radial direction, the locking nut 3 is tubular, one end of the locking nut is provided with an internal thread, and the other end of the locking nut is provided with a third boss 31 formed by extending inwards along the radial direction;
the vacuumizing valve body 100 is provided with external threads, the lock nut 3 is connected with the vacuumizing valve body 100 through threads, the first pipe body 11 is inserted into the vacuumizing valve body 100, the first boss 12 is abutted to a port of the vacuumizing valve body 100, the first O-shaped sealing ring 4 is sleeved on the vacuum joint 200, the first boss 12 and the second boss 22 are located on the upper side and the lower side of the first O-shaped sealing ring 4, the second boss 22 is attached to the third boss 31, the first sealing piece 1 and the second sealing piece 2 are clamped by screwing the lock nut 3, and the first boss 12 is attached to one end of the vacuumizing valve body 100 in a sealing mode.
In this embodiment, the upper portion of the lock nut 3 is connected with the connection end of the vacuumizing valve body 100 through threads, the lower portion of the lock nut 3 is provided with a third boss 31 extending inwards, the ports of the connection ends of the third boss 31 and the vacuumizing valve body 100 clamp the first sealing element 1 and the second sealing element 2, the first sealing element 1 and the second sealing element 2 clamp the first O-shaped sealing ring 4, and the first O-shaped sealing ring 4 is sleeved outside the vacuum connector 200, so that the sealing connection between the vacuumizing valve body 100 and the vacuum connector 200 is realized. The locking nut 3 is screwed to enable the vacuumizing valve body 100 and the vacuum connector 200 to be stably connected, the first boss 12 is tightly attached to the vacuumizing valve body 100, and sealing connection between the first sealing piece 1 and the vacuumizing valve body 100 is achieved. By screwing the lock nut 3, the first sealing element 1 and the second sealing element 2 squeeze the first O-shaped sealing ring 4 to deform, so that the sealing connection among the first sealing element 1, the second sealing element 2 and the vacuum joint 200 is realized. The switching device provided by the utility model can be suitable for vacuum connectors 200 with different calibers, and when the vacuum connectors 200 with different calibers are connected, the connection can be completed only by selecting the first sealing piece 1 and the second sealing piece 2 according to the vacuum connectors 200 so that the outer diameter of the vacuum connectors 200 is matched with the inner diameters of the first sealing piece 1 and the second sealing piece 2.
In some embodiments of the utility model, a second O-ring 5 is disposed between the first boss 12 and the evacuated valve body 100.
In the present embodiment, by providing the second O-ring 5 between the first boss 12 and the evacuating valve body 100, the tightness between the first boss 12 and the evacuating valve body 100 is made stronger.
The embodiment of the utility model also provides a vacuum pumping system based on the switching device of any one of the above, and the vacuum pumping system comprises: the vacuum valve comprises a vacuum valve body 100, a vacuum connector 200 and a switching device, wherein the switching device is used for connecting the vacuum valve body 100 and the vacuum connector 200 in a sealing way.
It should be noted that, the vacuum pumping system provided by the present utility model and the switching device in the above embodiment are based on the same inventive concept, so that the same technical effects can be obtained. Please refer to the embodiment part of the above switching device for specific technical effects, and the specific technical effects are not described herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (3)
1. A switching device for connecting a vacuum valve body (100) and a vacuum fitting (200), comprising: a first sealing element (1), a second sealing element (2) and a locking nut (3);
the first sealing element (1) comprises a first pipe body (11) and a first boss (12) formed by extending outwards in the radial direction along the axial direction, the second sealing element (2) comprises a second pipe body (21) and a second boss (22) formed by extending outwards in the radial direction, the locking nut (3) is tubular, one end of the locking nut is provided with an internal thread, and the other end of the locking nut is provided with a third boss (31) formed by extending inwards in the radial direction;
the utility model provides a vacuum valve body (100) is provided with the external screw thread, lock nut (3) with vacuum valve body (100) pass through threaded connection, first body (11) are inserted vacuum valve body (100), first boss (12) with the port butt of vacuum valve body (100), vacuum joint (200) cover is equipped with first O type sealing washer (4), first boss (12) with second boss (22) are located the upper and lower both sides of first O type sealing washer (4), second boss (22) with third boss (31) laminating, through screwing lock nut (3) make first sealing member (1) with second sealing member (2) clamp first O type sealing washer (4), and make first boss (12) with the one end of vacuum valve body (100) seals the laminating.
2. The adapter device according to claim 1, characterized in that a second O-ring (5) is arranged between the first boss (12) and the evacuating valve body (100).
3. A vacuum evacuation system, characterized in that it comprises, based on the adapter device of any one of claims 1-2: the vacuum-pumping valve body (100), the vacuum connector (200) and the switching device are used for connecting the vacuum-pumping valve body (100) and the vacuum connector (200) in a sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322365971.3U CN220622892U (en) | 2023-08-31 | 2023-08-31 | Switching device and vacuumizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322365971.3U CN220622892U (en) | 2023-08-31 | 2023-08-31 | Switching device and vacuumizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622892U true CN220622892U (en) | 2024-03-19 |
Family
ID=90225076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322365971.3U Active CN220622892U (en) | 2023-08-31 | 2023-08-31 | Switching device and vacuumizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622892U (en) |
-
2023
- 2023-08-31 CN CN202322365971.3U patent/CN220622892U/en active Active
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| GR01 | Patent grant |