CN112628406A - Sealing assembly for degassing of electronic vacuum device by utilizing vacuum suction force self-clamping - Google Patents
Sealing assembly for degassing of electronic vacuum device by utilizing vacuum suction force self-clamping Download PDFInfo
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- CN112628406A CN112628406A CN202011449093.8A CN202011449093A CN112628406A CN 112628406 A CN112628406 A CN 112628406A CN 202011449093 A CN202011449093 A CN 202011449093A CN 112628406 A CN112628406 A CN 112628406A
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- vacuum
- fixedly connected
- suction
- side wall
- clamping
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- 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
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
- F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to the technical field of electronic vacuum device manufacturing, and discloses a sealing assembly for degassing of an electronic vacuum device, which is self-clamped by using vacuum suction. The damping plate carries out the centre gripping to the outer wall of vacuum hood, promote the seal of vacuum hood, and the vacuum degree in the sealed slot is big more, the position that the piston piece rises just also big more, the air quantity that makes the piston piece take out in with the slide just also big more, the inside displacement volume of drive block just also big more in making two, the drive block drives the outside pressure that applys to the vacuum hood of damping plate and also promotes thereupon in making, and then makes the device can carry out self-adaptation centre gripping dynamics according to vacuum degree, hoisting device's whole seal.
Description
Technical Field
The invention relates to the technical field of electronic vacuum device manufacturing, in particular to a sealing assembly for degassing of an electronic vacuum device, which is self-clamped by utilizing vacuum suction.
Background
Vacuum electronic devices refer to devices that convert one form of electromagnetic energy into another form of electromagnetic energy by means of interaction of electrons with electromagnetic fields in vacuum or gas, and currently, in the manufacturing process of electronic vacuum devices, vacuum equipment is required to pump out air in a vacuum enclosure, so that the sealing performance of electronic vacuum devices is high.
In the prior art, when the electronic vacuum device is sealed, when air in the vacuum cover is gradually pumped out, the pressure of the external atmospheric pressure on the vacuum cover is gradually increased, however, because the gap between the sealing slot and the vacuum cover is consistent, when the external pressure is increased, the air flow easily enters the gap, so that the sealing failure is caused, and the vacuum effect is further influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the sealing assembly for degassing of the electronic vacuum device, which is self-clamped by using vacuum suction, has the advantages of self-adapting to clamping force and improving the whole tightness of the device according to the vacuum state of equipment, and solves the problems that when air in a vacuum cover is gradually pumped out, the pressure of the external atmospheric pressure on the vacuum cover is gradually increased, but because the gaps between a sealing slot and the vacuum cover are consistent, the air flow easily enters the gaps when the external pressure is increased, the sealing is failed, and the vacuum effect is further influenced.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a sealing assembly for degassing an electronic vacuum device by utilizing vacuum suction force self-clamping comprises a sealing slot, wherein a vacuum cover is inserted into the sealing slot, the inner side wall of the sealing slot is fixedly connected with a suction tube, the top of the suction tube is provided with a suction groove, the inner side wall of the suction tube is fixedly connected with an electrode plate group, the inner side wall of the suction tube is slidably connected with a piston block, the top of the piston block is fixedly connected with a dielectric plate, the bottom of the piston block is fixedly connected with a first reset spring, the bottom of the suction tube is fixedly connected with a suction tube, the inside of the sealing slot is fixedly connected with a slide seat, the top of the slide seat is slidably connected with two slide blocks, the two slide blocks are provided with a second reset spring between the two slide blocks, the outer side wall of the slide block is hinged with a connecting rod, the bottom of the sliding block is fixedly connected with an inner driving block;
the flexible electrorheological fluid sealing device is characterized in that a flexible film is fixedly connected to the inner side wall of the sealing slot, electrorheological fluid is filled in the flexible film, a flexible electrode is fixedly connected to the inside of the flexible film, and a supporting spring is fixedly connected to the outer side wall of the flexible film.
Preferably, the inner side wall of the suction tube is fixedly connected with a rubber sleeve, the piston block is attached to the rubber sleeve, and the airtightness of the suction tube is improved by arranging the rubber sleeve.
Preferably, one end of the suction pipe is communicated with the air suction end of the sliding seat, and air in the sliding seat is sucked through the suction pipe.
Preferably, the inside of the sliding seat is provided with a cavity, and the inner driving block is positioned inside the sliding seat.
Preferably, twelve damping plates are arranged, twelve damping plates are attached to the outer side wall of the vacuum cover, and the damping plates clamp the vacuum cover.
Preferably, twelve flexible films are arranged, twelve flexible films are distributed in a centrosymmetric manner according to the circle center position of the sealing slot, and the flexible films clamp the vacuum cover.
Preferably, the electrical input end of the flexible electrode is electrically connected with the electrical output end of the electrode plate group through a lead, and the electrode plate group supplies power to the flexible electrode.
(III) advantageous effects
Compared with the prior art, the invention provides the sealing assembly for degassing of the electronic vacuum device, which is self-clamped by using vacuum suction, and has the following beneficial effects:
1. the sealing component for degassing of the electronic vacuum device self-clamped by utilizing vacuum suction force is characterized in that a suction tube is arranged between a vacuum cover and a sealing slot, when vacuum operation is carried out, air in the sealing slot is pumped out, so that the outside of the sealing slot forms a negative pressure state, the air in the suction tube is discharged through the suction slot under the action of the negative pressure, the negative pressure is formed in the suction tube, an internal piston block slides to the outer side of the suction tube under the action of the negative pressure, the air in a sliding seat is pumped out by the piston block through a suction tube, two symmetrical inner driving blocks in the sliding seat drive sliding blocks to slide inwards, a connecting rod on the sliding block drives a damping plate to expand outwards, the damping plate clamps the outer wall of the vacuum cover, the sealing performance of the vacuum cover is improved, the larger the vacuum degree in the sealing slot is, the larger the ascending position of the piston block is, and the larger the air quantity pumped out from the sliding seat by the piston block is, the more the inward displacement of two interior drive blocks is made, the more the pressure applied to the vacuum cover by the damping plate driven by the interior drive blocks is lifted, and the self-adaptive clamping force can be carried out according to the vacuum degree by the device, so that the whole tightness of the device is improved.
2. The sealing component for degassing electronic vacuum devices self-clamped by vacuum suction is characterized in that a dielectric plate is arranged above a piston block, when the piston block rises, the piston block drives the dielectric plate to approach the electrode plate group, so that the capacitance on the electrode plate group changes, the electric field intensity generated by the flexible electrode in the flexible film is improved, the electrorheological fluid in the flexible film is changed into a solid state under the action of the electric field, the whole flexible film is not flexible any more, and the flexible film is under the action of the supporting spring, can apply pressure on the inner wall of the vacuum cover, so that when the vacuum cover is in vacuum operation, the two sides of the vacuum cover are squeezed by the pressure, thereby achieving the purpose of further improving the tightness of the device, under the initial state, the electrorheological fluid in the flexible film is not affected by an electric field, so that the flexible film has flexibility, and the vacuum cover can be better inserted into the sealing slot.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the suction canister of the present invention with the vacuum cap not pumping air;
FIG. 3 is a cross-sectional view of the suction canister of the present invention with the vacuum cap beginning to pump air out;
FIG. 4 is a view showing the positional relationship between the connecting rod and the damping plate in the present invention, wherein the damping plate is not expanded outwardly;
FIG. 5 is a view showing the positional relationship between the connecting rod and the damping plate according to the present invention, in which the damping plate is expanded outwardly;
FIG. 6 is an enlarged view of FIG. 1 taken at A.
In the figure: 1. sealing the slot; 11. a vacuum hood; 2. a suction tube; 21. a suction groove; 22. a rubber sleeve; 23. a pole plate group; 24. a piston block; 25. a dielectric plate; 26. a first return spring; 27. a suction tube; 3. a slide base; 31. a slider; 32. a second return spring; 33. a connecting rod; 34. a damping plate; 35. an inner drive block; 4. a flexible film; 41. electrorheological fluid; 42. a flexible electrode; 43. supporting the spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a self-clamping electronic vacuum device degassing sealing assembly using vacuum suction comprises a sealing slot 1, a vacuum cover 11 is inserted into the sealing slot 1, a suction tube 2 is fixedly connected to the inner side wall of the sealing slot 1, a rubber sleeve 22 is fixedly connected to the inner side wall of the suction tube 2, a piston block 24 is attached to the rubber sleeve 22, the sealing performance of the suction tube 2 is improved by the rubber sleeve 22, a suction groove 21 is formed in the top of the suction tube 2, a pole plate group 23 is fixedly connected to the inner side wall of the suction tube 2, a piston block 24 is slidably connected to the inner side wall of the suction tube 2, a dielectric plate 25 is fixedly connected to the top of the piston block 24, a return spring 26 is fixedly connected to the bottom of the piston block 24, a suction tube 27 is fixedly connected to the bottom of the suction tube 2, a slide carriage 3 is fixedly connected to the inside of the sealing slot 1, and one end, the air in the sliding seat 3 is pumped out through the suction pipe 27, a containing cavity is arranged in the sliding seat 3, the inner driving block 35 is positioned in the sliding seat 3, the top of the sliding seat 3 is connected with two sliding blocks 31 in a sliding mode, a second return spring 32 is arranged between the two sliding blocks 31, the outer side wall of each sliding block 31 is hinged with a connecting rod 33, one end of each connecting rod 33 is hinged with a damping plate 34, the damping plates 34 are twelve, the twelve damping plates 34 are all attached to the outer side wall of the vacuum cover 11, the damping plates 34 clamp the vacuum cover 11, and the bottom of each sliding block 31 is fixedly connected with the inner driving block 35;
the inside wall fixedly connected with flexible film 4 of sealed slot 1, flexible film 4 is equipped with twelve altogether, twelve flexible film 4 locate central symmetry distribution with reference to the centre of a circle of sealed slot 1, flexible film 4 carries out the centre gripping to vacuum chamber 11, the inside packing of flexible film 4 has electrorheological fluids 41, the inside fixedly connected with flexible electrode 42 of flexible film 4, the electrical property input of flexible electrode 42 passes through the wire and is connected with the electrical property output electricity of polar plate group 23, polar plate group 23 is the power supply of flexible electrode 42, the lateral wall fixedly connected with supporting spring 43 of flexible film 4.
The working principle is as follows: when vacuum operation is carried out, air in the sealing slot 1 is pumped out, so that the outside of the sealing slot 1 forms a negative pressure state, air in the suction tube 2 is discharged through the suction groove 21 under the action of negative pressure, negative pressure is formed in the suction tube 2, the inner piston block 24 slides to the outer side of the suction tube 2 under the action of negative pressure, the air in the sliding seat 3 is pumped out by the piston block 24 through the suction tube 27, the two symmetrical inner driving blocks 35 in the sliding seat 3 drive the sliding block 31 to slide inwards, the connecting rod 33 on the sliding block 31 drives the damping plate 34 to expand outwards, the damping plate 34 clamps the outer wall of the vacuum cover 1, the tightness of the vacuum cover 11 is improved, the ascending position of the piston block 24 is larger as the vacuum degree in the sealing slot 1 is larger, the air quantity pumped out in the sliding seat 3 by the piston block 24 is larger, the inward displacement of the two inner driving blocks 35 is larger, the inner driving block 35 drives the damping plate 34 to apply pressure to the vacuum cover 11 outwards, and accordingly self-adaptive clamping force can be carried out on the device according to the vacuum degree, and the whole sealing performance of the device is improved.
Please refer to fig. 1 to 5 for the above structure and process.
When the piston block 24 rises, the piston block 24 drives the dielectric plate 25 to approach the electrode plate group 23, so that the capacitance on the electrode plate group 23 changes, the electric field intensity generated by the flexible electrode 42 in the flexible thin film 4 is improved, the electrorheological fluid 41 in the flexible thin film 4 is changed into a solid state under the action of the electric field, the whole flexible thin film 4 is not flexible any more, the flexible thin film 4 can apply pressure to the inner wall of the vacuum cover 11 under the action of the supporting spring 43, and when the vacuum cover 11 performs vacuum operation, both sides of the vacuum cover 11 are pressed by the pressure, so that the aim of further improving the tightness of the device is fulfilled.
Please refer to fig. 1, fig. 3 and fig. 6 for the above structure and process.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an utilize vacuum suction self-holding's electron vacuum device degasification to use seal assembly, includes sealed slot (1), the inside grafting of sealed slot (1) has vacuum cover (11), its characterized in that: the inner side wall of the sealed slot (1) is fixedly connected with a suction tube (2), the top of the suction tube (2) is provided with a suction groove (21), the inner side wall of the suction tube (2) is fixedly connected with an electrode plate group (23), the inner side wall of the suction tube (2) is slidably connected with a piston block (24), the top of the piston block (24) is fixedly connected with a dielectric plate (25), the bottom of the piston block (24) is fixedly connected with a first reset spring (26), the bottom of the suction tube (2) is fixedly connected with a suction tube (27), the inside of the sealed slot (1) is fixedly connected with a slide seat (3), the top of the slide seat (3) is slidably connected with a slide block (31), the slide block (31) is provided with two and two reset springs (32) between the slide blocks (31), and the outer side wall of the slide block (31) is hinged with, one end of the connecting rod (33) is hinged with a damping plate (34), and the bottom of the sliding block (31) is fixedly connected with an inner driving block (35);
the flexible electrorheological fluid sealing device is characterized in that a flexible film (4) is fixedly connected to the inner side wall of the sealing slot (1), electrorheological fluid (41) is filled in the flexible film (4), a flexible electrode (42) is fixedly connected to the inside of the flexible film (4), and a supporting spring (43) is fixedly connected to the outer side wall of the flexible film (4).
2. The sealing assembly for degasification of electronic vacuum devices self-clamping by vacuum suction as claimed in claim 1, wherein: the inside wall fixedly connected with rubber sleeve (22) of suction tube (2), piston block (24) with rubber sleeve (22) laminate each other.
3. The sealing assembly for degasification of electronic vacuum devices self-clamping by vacuum suction as claimed in claim 1, wherein: one end of the suction pipe (27) is communicated with the air suction end of the sliding seat (3).
4. The sealing assembly for degasification of electronic vacuum devices self-clamping by vacuum suction as claimed in claim 1, wherein: the inner part of the sliding seat (3) is provided with a containing cavity, and the inner driving block (35) is positioned in the sliding seat (3).
5. The sealing assembly for degasification of electronic vacuum devices self-clamping by vacuum suction as claimed in claim 1, wherein: twelve damping plates (34) are arranged, and twelve damping plates (34) are attached to the outer side wall of the vacuum cover (11).
6. The sealing assembly for degasification of electronic vacuum devices self-clamping by vacuum suction as claimed in claim 1, wherein: twelve flexible films (4) are arranged, and twelve flexible films (4) are distributed in a central symmetry mode according to the circle center position of the sealing slot (1).
7. The sealing assembly for degasification of electronic vacuum devices self-clamping by vacuum suction as claimed in claim 1, wherein: the electrical input end of the flexible electrode (42) is electrically connected with the electrical output end of the electrode plate group (23) through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449093.8A CN112628406A (en) | 2020-12-09 | 2020-12-09 | Sealing assembly for degassing of electronic vacuum device by utilizing vacuum suction force self-clamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449093.8A CN112628406A (en) | 2020-12-09 | 2020-12-09 | Sealing assembly for degassing of electronic vacuum device by utilizing vacuum suction force self-clamping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112628406A true CN112628406A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011449093.8A Withdrawn CN112628406A (en) | 2020-12-09 | 2020-12-09 | Sealing assembly for degassing of electronic vacuum device by utilizing vacuum suction force self-clamping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112628406A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211253A (en) * | 2021-12-30 | 2022-03-22 | 霍山嘉远智能制造有限公司 | Quick positioning and fixing device of numerical control boring and milling machine |
-
2020
- 2020-12-09 CN CN202011449093.8A patent/CN112628406A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211253A (en) * | 2021-12-30 | 2022-03-22 | 霍山嘉远智能制造有限公司 | Quick positioning and fixing device of numerical control boring and milling machine |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210409 |