CN214957541U - Special fixing device for vacuum sealing of high-voltage connector - Google Patents
Special fixing device for vacuum sealing of high-voltage connector Download PDFInfo
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- CN214957541U CN214957541U CN202121538363.2U CN202121538363U CN214957541U CN 214957541 U CN214957541 U CN 214957541U CN 202121538363 U CN202121538363 U CN 202121538363U CN 214957541 U CN214957541 U CN 214957541U
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Abstract
The utility model discloses a special fixing device for vacuum sealing of a high-voltage connector, which comprises a substrate used for connecting the wall of a vacuum chamber; the substrate is provided with a fixed pressing part, and the fixed pressing part is used for fixing a high-voltage connector and tightly pressing a sealing ring of the high-voltage connector on the wall of the vacuum chamber; an adjusting part is arranged between the substrate and the fixed pressing part and is used for driving the fixed pressing part to do directional reciprocating movement; and guide parts are arranged on the two sides of the fixed pressing part on the substrate and are used for guiding the fixed pressing part to move in a reciprocating mode in a directional mode. The utility model discloses specially design for vacuum seal formula high voltage connector, sealing performance and insulating properties are superior in the use, stable in structure, reliable, the dismouting of being convenient for.
Description
Technical Field
The utility model relates to a high voltage power connector especially relates to high voltage power connector vacuum seal special fixing device.
Background
The main components of the mass spectrometer work in a vacuum environment, sample molecules are ionized in an ion source and then reach an electron multiplier tube through a mass analyzer, ions are converted into electronic signals to be output, the whole ion path is in a high vacuum environment, wherein the mass analyzer needs to be connected with high voltage to form a stable electric field to screen effective ions, and a high vacuum sealing connector is needed to transmit external voltage to the vacuum environment; moreover, ions are converted into electronic signals through the electron multiplier tube, high voltage is required to be added on a dynode and a detector in the electron multiplier tube, and meanwhile, the high-vacuum sealing high-voltage connector is used for avoiding discharge during high-voltage transmission so as to avoid affecting the signal stability of an instrument.
Chinese patent publication No. CN207217895U discloses a high vacuum sealing high-voltage connector, which uses a teflon flange as a sealing fixture of the high-voltage connector to seal and fix the high-voltage connector and the perforated wall of the vacuum chamber, and has better insulation property and can avoid high-voltage discharge. However, due to the insufficient rigidity of teflon, in long-term use, along with repeatedly opening and closing the instrument, the vacuum degree in the vacuum chamber is repeatedly increased from zero to high vacuum, so that the pressure difference born by two ends of the teflon sealing flange is frequently changed, the teflon sealing flange is frequently loosened to influence the sealing effect, and finally, the vacuum chamber of the mass spectrometer leaks air to cause the internal vacuum degree to be not up to the standard, so that the normal operation of the mass spectrometer is influenced. And meanwhile, the installation in a narrow space is not facilitated, and the disassembly and the assembly are inconvenient.
Disclosure of Invention
An object of the utility model is to provide a sealed effectual, the high special fixing device of high-pressure connector vacuum seal of stability.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model discloses a special fixing device for vacuum sealing of a high-voltage connector, which comprises a substrate used for connecting the wall of a vacuum chamber; the substrate is provided with a fixed pressing part, and the fixed pressing part is used for fixing a high-voltage connector and tightly pressing a sealing ring of the high-voltage connector on the wall of the vacuum chamber; an adjusting part is arranged between the substrate and the fixed pressing part and is used for driving the fixed pressing part to do directional reciprocating movement; and guide parts are arranged on the two sides of the fixed pressing part on the substrate and are used for guiding the fixed pressing part to move in a reciprocating mode in a directional mode.
Preferably, the fixed pressing part comprises a movable pressing block which is arranged on the substrate in a sliding mode, a large-diameter conical hole and a small-diameter conical hole are formed in the movable pressing block, and the large-diameter conical hole and the small-diameter conical hole are communicated through an aqueduct. The large-diameter conical hole is used for inserting the high-voltage connector, and the small-diameter conical hole is used for positioning the high-voltage connector.
Preferably, the adjusting part comprises a nut fixed on the base plate and a release screw arranged on the movable pressing block; the release screw is in threaded connection with the nut and used for driving the movable pressing block to axially reciprocate along the release screw when the release screw rotates reversely/clockwise.
Preferably, the guide part comprises a first guide rail and a second guide rail which are fixed on the base plates on two sides of the movable pressing block, and the contact surfaces of the first guide rail and the second guide rail and the two sides of the movable pressing block are in sliding fit.
Preferably, the first guide rail and the second guide rail are respectively provided with a guide groove along the axial direction thereof, and the two guide grooves are respectively arranged obliquely downwards towards the loosening-free screw direction; guide posts are respectively arranged on two side surfaces of the movable pressing block, and the two guide posts respectively penetrate through the corresponding guide grooves in a movable fit mode.
Preferably, return springs are respectively arranged between the two guide columns and the base plate along the axial direction of the guide rail.
Preferably, wear-resistant blocks/pieces are respectively arranged on two side surfaces of the movable pressing block.
The utility model discloses specially design for vacuum seal formula high voltage connector, sealing performance and insulating properties are superior in the use, stable in structure, reliable, the dismouting of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the substrate in fig. 1.
Fig. 3 is a schematic structural view of the movable block of fig. 1.
Fig. 4 is a schematic view of the usage state of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-4, the fixing device for vacuum sealing of high-voltage connector of the present invention comprises a substrate 1 for connecting a wall of a vacuum chamber; the base 1 is provided with a fixed pressing part for fixing the high-voltage connector 2, and the fixed pressing part is used for pressing the sealing ring 3 of the high-voltage connector 2 to be closely attached to the wall of the high-voltage connector installation window of the vacuum chamber 4.
As shown in fig. 1 and 3, the fixed compressing part comprises a movable pressing block 5 arranged on the substrate 1 in a sliding manner, the movable pressing block 5 is provided with a large-diameter conical hole 6 and a small-diameter conical hole 7, and the large-diameter conical hole 6 is communicated with the small-diameter conical hole 7 through an aqueduct, so that a compressing and fixing unit of the high-voltage connector 2 is completed; the large-diameter conical hole 6 is used for inserting the high-voltage connector 2, the small-diameter conical hole is used for positioning the high-voltage connector 2, and two pressing and fixing units are selected according to needs.
As shown in fig. 1, 2 and 3, an adjusting part is arranged between the substrate 1 and the fixed pressing part for driving the fixed pressing part to perform directional reciprocating movement; the adjusting part is composed of a nut 8 welded on the substrate 1 and a loose screw 9 arranged on the movable pressing block 5, the loose screw 9 is in threaded connection with the nut 8, and when the loose screw 9 rotates reversely/clockwise, the movable pressing block 5 is driven to move axially and reciprocally along the loose screw 9.
As shown in fig. 1, the base plate 1 is positioned on the left side and the right side of the movable pressing block 5, a first guide rail 11 and a second guide rail 12 are installed through a positioning pin 10, and the contact surfaces of the first guide rail 11 and the second guide rail 12 and the left side and the right side of the movable pressing block 5 are in sliding fit; as shown in fig. 3, in order to prolong the service life of the movable pressing block 5, wear-resistant blocks or wear-resistant pieces 13 are respectively fixed on the left and right sides of the movable pressing block 5.
As shown in fig. 1, in order to further enhance the tightness between the sealing ring 3 of the high-pressure connector 2 and the window wall of the vacuum chamber 4, the first and second guide rails 11 and 12 are respectively provided with a guide groove 14 along the axial direction thereof, and the two guide grooves 14 are respectively arranged obliquely downwards towards the direction of the release screw 9; as shown in fig. 3, guide posts 15 are respectively disposed on the left and right side surfaces of the movable pressing block 5, and the two guide posts 15 respectively movably fit through the corresponding guide slots 14. Therefore, when the release screw 9 is screwed counterclockwise (or clockwise), since the substrate 1 is fixed to the outer wall of the vacuum chamber 4, the nut 8 is not moved and the movable pressing piece 5 is moved toward the nut 8, and since the guide groove 14 is provided obliquely downward toward the release screw 9, the movable pressing piece 5 is moved toward the nut 8 while the packing 3 of the high-pressure connector 2 is further pressed against the window wall of the vacuum chamber 4.
As shown in fig. 1, for facilitating the installation and removal of the movable pressing block 5, return springs 16 are respectively disposed between the two guide posts 15 and the base plate 1 along the axial direction of the guide rails 15.
As shown in fig. 1 and 4, the installation steps of the present invention are as follows:
Claims (7)
1. The utility model provides a special fixing device of high pressure connector vacuum seal which characterized in that: comprises a substrate for connecting the walls of the vacuum chamber; the substrate is provided with a fixed pressing part, and the fixed pressing part is used for fixing a high-voltage connector and tightly pressing a sealing ring of the high-voltage connector on the wall of the vacuum chamber; an adjusting part is arranged between the substrate and the fixed pressing part and is used for driving the fixed pressing part to do directional reciprocating movement; and guide parts are arranged on the two sides of the fixed pressing part on the substrate and are used for guiding the fixed pressing part to move in a reciprocating mode in a directional mode.
2. The special fixture for vacuum sealing of high-pressure connector according to claim 1, wherein: the fixed pressing part comprises a movable pressing block which is arranged on the substrate in a sliding mode, a large-diameter conical hole and a small-diameter conical hole are formed in the movable pressing block, the large-diameter conical hole and the small-diameter conical hole are communicated through a aqueduct, the large-diameter conical hole is used for being inserted into the high-voltage connector, and the small-diameter conical hole is used for positioning the high-voltage connector.
3. The special fixture for vacuum sealing of high-pressure connector according to claim 2, wherein: the adjusting part comprises a nut fixed on the base plate and a release screw arranged on the movable pressing block; the release screw is in threaded connection with the nut and used for driving the movable pressing block to axially reciprocate along the release screw when the release screw rotates reversely/clockwise.
4. The special fixture for vacuum sealing of high-pressure connector according to claim 3, wherein: the guide part comprises a first guide rail and a second guide rail which are fixed on the base plates on two sides of the movable pressing block, and the first guide rail and the second guide rail are in sliding fit with the contact surfaces on two sides of the movable pressing block.
5. The special fixture for vacuum sealing of high-pressure connector according to claim 4, wherein: the first guide rail and the second guide rail are respectively provided with a guide groove along the axial direction of the first guide rail and the second guide rail, and the two guide grooves are respectively arranged downwards in an inclined way towards the direction of the captive screw; guide posts are respectively arranged on two side surfaces of the movable pressing block, and the two guide posts respectively penetrate through the corresponding guide grooves in a movable fit mode.
6. The special fixture for vacuum sealing of high-pressure connector according to claim 5, wherein: and return springs are respectively arranged between the two guide columns and the base plate along the axial directions of the first guide rail and the second guide rail.
7. The special fixture for vacuum sealing of high-pressure connector according to claim 4 or 5, wherein: and two side surfaces of the movable pressing block are respectively provided with a wear-resisting block/sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121538363.2U CN214957541U (en) | 2021-07-07 | 2021-07-07 | Special fixing device for vacuum sealing of high-voltage connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121538363.2U CN214957541U (en) | 2021-07-07 | 2021-07-07 | Special fixing device for vacuum sealing of high-voltage connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214957541U true CN214957541U (en) | 2021-11-30 |
Family
ID=79073219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121538363.2U Active CN214957541U (en) | 2021-07-07 | 2021-07-07 | Special fixing device for vacuum sealing of high-voltage connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214957541U (en) |
-
2021
- 2021-07-07 CN CN202121538363.2U patent/CN214957541U/en active Active
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