CN210600478U - Sealing structure of vacuum chamber - Google Patents
Sealing structure of vacuum chamber Download PDFInfo
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- CN210600478U CN210600478U CN201921475113.1U CN201921475113U CN210600478U CN 210600478 U CN210600478 U CN 210600478U CN 201921475113 U CN201921475113 U CN 201921475113U CN 210600478 U CN210600478 U CN 210600478U
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- hole
- threading
- vacuum chamber
- cable
- sealing
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Abstract
The utility model relates to the technical field of sealing structures, and discloses a sealing structure of a vacuum chamber, which comprises a cavity with the vacuum chamber and a wire penetrating piece for penetrating a cable; the side wall of the cavity is provided with a through hole which is communicated with the vacuum cavity; the threading piece is inserted into the through hole, a first sealing ring is sleeved on the threading piece, and the first sealing ring seals a gap between the through hole and the periphery of the threading piece; the threading piece is provided with threading holes which are communicated with the vacuum chamber and the outside of the cavity; the cable passes through the threading hole, a second sealing ring is sleeved on the cable, and the second sealing ring seals a gap between the threading hole and the cable; the first sealing ring seals a gap between the through hole and the periphery of the threading piece, and the second sealing ring seals a gap between the threading hole and the cable; the sealing effect on the vacuum cavity is achieved through the sealing structure, so that the cable can penetrate through the cavity and be connected with the outside without being cut off, the sealing performance is good, and the vacuum cavity sealing structure is convenient and practical.
Description
Technical Field
The patent of the utility model relates to a seal structure's technical field particularly, relates to the seal structure of vacuum chamber.
Background
In manufacturing processes, many work products have special requirements on the processing environment, such as a vacuum environment. The air in the container is extracted out, so that the air pressure in the container is reduced to form a vacuum chamber, the workpiece is placed in the vacuum chamber for processing, the product meets the processing requirement, and the vacuum chamber has high sealing requirement.
The sealing structure of the existing vacuum chamber comprises an aviation plug, the aviation plug is fixed on the wall of the vacuum chamber, a cable in the vacuum chamber passes through the vacuum chamber and is connected with the outside, and the aviation plug is used for switching after being cut off and then is connected with the outside.
The sealing structure is completely inapplicable to certain cables which cannot be cut off, the cables cannot be connected with the outside through aviation plugs, and the cables directly penetrate through the cavity wall to destroy the sealing performance of the vacuum cavity, so that the sealing structure for the cables which cannot be cut off to penetrate through the vacuum cavity is lacked.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a seal structure of vacuum chamber aims at solving prior art, lacks a problem that is used for the unable cable of cutting to pass the seal structure of vacuum chamber.
The utility model is realized in such a way that the sealing structure of the vacuum chamber comprises a cavity body with the vacuum chamber and a wire threading piece for threading a cable; the side wall of the cavity is provided with a through hole which is communicated with the vacuum cavity; the threading piece is inserted into the through hole, a first sealing ring is sleeved on the threading piece, and the first sealing ring seals a gap between the through hole and the periphery of the threading piece; the threading piece is provided with threading holes which are communicated with the vacuum chamber and the outside of the chamber body; the cable passes through the threading hole is equipped with the second sealing washer on the cable, the second sealing washer is sealed clearance between threading hole and the cable.
Further, the first seal ring has an outer peripheral surface facing the inner wall surface of the through hole, and the outer peripheral surface of the first seal ring is in abutting contact with the inner wall surface of the through hole.
Further, the first seal ring has an inner peripheral surface facing the thread passing member, and the inner peripheral surface of the first seal ring is in close contact with an outer surface of the thread passing member.
Further, along deviating from the direction of vacuum chamber, threading spare extends outward to the outside of cavity forms the canned paragraph, the canned paragraph closing cap the through-hole just is fixed on the cavity.
Further, the cavity is provided with a front abutting surface facing the fixing section, the fixing section is provided with a rear abutting surface facing the front abutting surface, and the front abutting surface of the cavity is abutted with the rear abutting surface of the fixing section in a fit mode.
Further, the through hole has a circular cross section, and the part of the threading part embedded in the through hole forms an embedded section, and the embedded section is cylindrical.
Further, the second seal ring has an outer peripheral surface facing the inner wall surface of the threading hole, and the outer peripheral surface of the second seal ring is in abutting contact with the inner wall surface of the threading hole.
Further, the second seal ring has an inner peripheral surface facing the cable, and the inner peripheral surface of the second seal ring is in contact with the outer surface of the cable.
Furthermore, a fastener is fixed on the fixing section of the wire penetrating piece, the cable penetrates through the fastener, and the fastener fixes the cable.
Furthermore, the fastener is provided with a connecting hole for penetrating a cable, and the connecting hole of the fastener is opposite to the threading hole of the threading piece.
Compared with the prior art, the sealing structure of the vacuum chamber provided by the utility model has the advantages that the threading piece is inserted into the through hole of the cavity, the through hole is communicated with the vacuum chamber, the threading piece is sleeved with the first sealing ring, the first sealing ring seals the gap between the through hole and the periphery of the threading piece, and the vacuum chamber is prevented from being communicated with the outside through the through hole; the cable penetrates through the threading hole in the threading piece, the second sealing ring is sleeved on the cable, the second sealing ring seals a gap between the threading hole and the cable, and the vacuum chamber is prevented from being communicated with the outside through the threading hole; the sealing effect on the vacuum cavity is achieved through the sealing structure, so that the cable can penetrate through the cavity and be connected with the outside without being cut off, the sealing performance is good, and the vacuum cavity sealing structure is convenient and practical.
Drawings
Fig. 1 is a schematic perspective view of a sealing structure of a vacuum chamber provided by the present invention;
fig. 2 is an exploded schematic view of the sealing structure of the vacuum chamber provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-2, the preferred embodiment of the present invention is shown.
The sealing structure of the vacuum chamber provided in this embodiment can be applied to a vacuum chamber, and certainly, it can also be applied to other vacuum devices, and is not limited to the application in this embodiment.
The sealing structure of the vacuum cavity comprises a cavity body 11 with the vacuum cavity and a threading piece 12 for threading a cable; the side wall of the cavity 11 is provided with a through hole 13, and the through hole 13 is communicated with the vacuum cavity; the threading piece 12 is inserted into the through hole 13, a first sealing ring 14 is sleeved on the threading piece 12, and the first sealing ring 14 seals a gap between the through hole 13 and the periphery of the threading piece 12; the threading piece 12 is provided with threading holes 15, and the threading holes 15 are communicated with the vacuum chamber and the outside of the cavity 11; the cable passes through threading hole 15, and the cover is equipped with second sealing washer 16 on the cable, and second sealing washer 16 seals the clearance between threading hole 15 and the cable.
In the sealing structure of the vacuum chamber, the threading piece 12 is inserted into the through hole 13 of the cavity 11, the through hole 13 is communicated with the vacuum chamber, the threading piece 12 is sleeved with the first sealing ring 14, and the first sealing ring 14 seals a gap between the through hole 13 and the periphery of the threading piece 12, so that the vacuum chamber is prevented from being communicated with the outside through the through hole 13; the cable penetrates through a threading hole 15 in the threading piece 12, a second sealing ring 16 is sleeved on the cable, and the second sealing ring 16 seals a gap between the threading hole 15 and the cable, so that the vacuum chamber is prevented from being communicated with the outside through the threading hole 15; the sealing effect on the vacuum cavity is achieved through the sealing structure, so that the cable can penetrate through the cavity 11 and be connected with the outside without being cut off, the sealing performance is good, and the vacuum cavity sealing structure is convenient and practical.
The first seal ring 14 has an outer peripheral surface facing the inner wall surface of the through hole 13, and the outer peripheral surface of the first seal ring 14 is in surface-to-surface contact with the inner wall surface of the through hole 13.
The contact area between the first seal ring 14 and the through hole 13 is increased, the outer peripheral surface of the first seal ring 14 is tightly attached to the inner wall surface of the through hole 13, and the sealing performance between the first seal ring 14 and the through hole 13 is enhanced.
The first seal ring 14 has an inner peripheral surface facing the threading member 12, and the inner peripheral surface of the first seal ring 14 is in close contact with the outer surface of the threading member 12.
The contact area of the first sealing ring 14 and the threading piece 12 is increased, the inner circumferential surface of the first sealing ring 14 is tightly attached to the outer surface of the threading piece 12, the sealing performance between the first sealing ring 14 and the threading piece 12 is enhanced, and the first sealing ring 14 is enabled to seal the gap between the threading piece 12 and the through hole 13 by being abutted against the through hole 13.
In the direction away from the vacuum chamber, the threading member 12 extends outwards to the outside of the cavity 11 to form a fixing section 17, and the fixing section 17 covers the through hole 13 and is fixed on the cavity 11.
The fixing section 17 of the threading member 12 covers the through hole 13, so that foreign matters outside the cavity 11 are prevented from entering the through hole 13 and damaging the first sealing ring 14.
The cavity 11 has a front contact surface facing the fixing section 17, the fixing section 17 has a rear contact surface facing the front contact surface, and the front contact surface of the cavity 11 is in contact with the rear contact surface of the fixing section 17, so that the sealing performance of the through hole 13 is further enhanced.
The through hole 13 has a circular cross-section, and the part of the threading member 12 that is inserted into the through hole 13 forms an insertion section 18, which insertion section 18 is cylindrical.
The cylindrical embedding section 18 is embedded into the circular through hole 13, the surfaces of the embedding section 18 and the through hole 13 are not provided with edges, the first sealing ring 14 is attached to the threading piece 12 and the through hole 13 more tightly, and the sealing effect is better.
The second seal ring 16 has an outer peripheral surface facing the inner wall surface of the threading hole 15, and the outer peripheral surface of the second seal ring 16 is in contact with the inner wall surface of the threading hole 15.
The contact area between the second sealing ring 16 and the threading hole 15 is increased, the peripheral surface of the second sealing ring 16 is tightly attached to the inner wall surface of the threading hole 15, and the sealing performance between the second sealing ring 16 and the threading hole 15 is enhanced.
The second seal ring 16 has an inner peripheral surface facing the cable, and the inner peripheral surface of the second seal ring 16 is in close contact with the outer surface of the cable.
Increase the area of contact of second sealing washer 16 and cable, the inner peripheral surface of second sealing washer 16 closely laminates with the surface of cable, strengthens the leakproofness between second sealing washer 16 and the cable, combines the butt of second sealing washer 16 and through wires hole 15, guarantees that second sealing washer 16 seals the clearance between cable and the through wires hole 15.
The fixing section 17 of the wire threading member 12 is fixed with a fastener 19, the cable passes through the fastener 19, and the fastener 19 fixes the cable.
The fastener 19 fixes the cable, avoids the cable to remove in threading hole 15, leads to the second sealing washer 16 to drop from threading hole 15, destroys the sealed effect of second sealing washer 16 to the clearance between cable and the threading hole 15.
The fastening piece 19 is provided with a connecting hole 20 for penetrating the cable, the connecting hole 20 of the fastening piece 19 is arranged opposite to the threading hole 15 of the threading piece 12, and the cable is conveniently and directly connected with the outside through the connecting hole 20 and the threading hole 15 from the vacuum chamber.
The fastening piece 19 comprises a base and a locking piece which are fixed on the fixing section 17 of the threading piece 12, the base is provided with a connecting hole 20 for the cable to pass through, the base is provided with a notch for exposing the cable outside, and two sides of the notch are respectively provided with a buckling part; after the cable passes through the connecting hole 20, the locking piece is embedded into the notch and locked with the buckling part, so that the cable is fixed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The sealing structure of the vacuum chamber is characterized by comprising a cavity with the vacuum chamber and a wire penetrating piece for penetrating a cable; the side wall of the cavity is provided with a through hole which is communicated with the vacuum cavity; the threading piece is inserted into the through hole, a first sealing ring is sleeved on the threading piece, and the first sealing ring seals a gap between the through hole and the periphery of the threading piece; the threading piece is provided with threading holes which are communicated with the vacuum chamber and the outside of the chamber body; the cable passes through the threading hole is equipped with the second sealing washer on the cable, the second sealing washer is sealed clearance between threading hole and the cable.
2. The sealing structure of vacuum chamber according to claim 1, wherein the first seal ring has an outer peripheral surface facing the inner wall surface of the through hole, and the outer peripheral surface of the first seal ring is in close contact with the inner wall surface of the through hole.
3. The sealing structure of vacuum chamber according to claim 2, wherein the first seal ring has an inner peripheral surface facing the wire-passing member, and the inner peripheral surface of the first seal ring is in close contact with an outer surface of the wire-passing member.
4. The sealing structure of vacuum chamber according to claim 3, wherein the threading member extends outward to the outside of the chamber to form a fixing section which covers the through hole and is fixed to the chamber.
5. The sealing structure of vacuum chamber according to claim 4, wherein the cavity has a front abutment surface facing the fixing section, the fixing section has a rear abutment surface facing the front abutment surface, and the front abutment surface of the cavity abuts in a fitting manner with the rear abutment surface of the fixing section.
6. The sealing structure of vacuum chamber according to claim 5, wherein the through-hole is a circular through-hole, and a portion of the wire passing member inserted into the through-hole forms an insertion section, and the insertion section has a cylindrical shape.
7. The sealing structure of a vacuum chamber according to any one of claims 1 to 6, wherein the second seal ring has an outer peripheral surface facing an inner wall surface of the threading hole, and the outer peripheral surface of the second seal ring is in abutting contact with the inner wall surface of the threading hole.
8. The sealing structure of vacuum chamber according to claim 7, wherein the second sealing ring has an inner circumferential surface facing the cable, and the inner circumferential surface of the second sealing ring is in close contact with an outer surface of the cable.
9. The sealing structure of vacuum chamber according to any one of claims 4 to 6, wherein a fastening member is fixed to the fixing section of the wire passing member, and a cable passes through the fastening member, and the fastening member fixes the cable.
10. The sealing structure of vacuum chamber, as claimed in claim 9, wherein the fastening member has a connecting hole for passing the cable therethrough, the connecting hole of the fastening member being disposed opposite to the threading hole of the threading member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921475113.1U CN210600478U (en) | 2019-09-05 | 2019-09-05 | Sealing structure of vacuum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921475113.1U CN210600478U (en) | 2019-09-05 | 2019-09-05 | Sealing structure of vacuum chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210600478U true CN210600478U (en) | 2020-05-22 |
Family
ID=70698526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921475113.1U Active CN210600478U (en) | 2019-09-05 | 2019-09-05 | Sealing structure of vacuum chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210600478U (en) |
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2019
- 2019-09-05 CN CN201921475113.1U patent/CN210600478U/en active Active
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