CN202545825U - Labyrinth type automatic compensation sealing ring - Google Patents
Labyrinth type automatic compensation sealing ring Download PDFInfo
- Publication number
- CN202545825U CN202545825U CN2012201258604U CN201220125860U CN202545825U CN 202545825 U CN202545825 U CN 202545825U CN 2012201258604 U CN2012201258604 U CN 2012201258604U CN 201220125860 U CN201220125860 U CN 201220125860U CN 202545825 U CN202545825 U CN 202545825U
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- CN
- China
- Prior art keywords
- sealing
- vacuum
- type automatic
- circle
- automatic compensation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a labyrinth type automatic compensation sealing ring, aiming at solving the problem that the existing sealing ring is poor in sealing performance and likely to produce air leakage. The sealing ring provided by the utility model is manufactured by forming five sealing planes and one vacuum automatic expansion loop at an end face of a sealing box gate, namely a first sealing plane, a second sealing plane, a third sealing plane, a fourth sealing plane, a fifth sealing plane and the vacuum automatic expansion loop in sequence; and the five sealing planes are tightly contacted sealing planes. The vacuum automatic expansion loop can expand automatically at the vacuum state so as to compensate the transformation of the box gate, so that the sealing is realized more effectively, the air leakage is reduced, and the vacuum degree is improved.
Description
[technical field]
The utility model relates to a kind of mazy type automatic compensation sealing circle.
[background technique]
The design of present most of seal ring is that the surface of contact between chamber door and the casing adds a slat gum seal ring; The barometric pressure that relies on casing to vacuumize on the chamber door of back seals; Integral sealing effect is all by the sealing surface of middle one deck rubber, if the end face of chamber door or casing has distortion just not reach sealing effect slightly like this.
[model utility content]
The technical problem that the utility model will solve and the technical assignment of proposition are to overcome the not good defective of sealing effect that the seal face distortion causes.
The technological scheme of the utility model is:
A kind of labyrinth sealing circle comprises 5 sealing surfaces and the automatic expanding ring of vacuum, and these 5 sealing surfaces inwardly are followed successively by the automatic expanding ring of vacuum, primary sealing area, secondary sealing area, the 3rd sealing surface, the 4th sealing surface, the 5th sealing surface from the vacuum chamber door; Said 5 sealing surfaces are tight contact seal face.
Said mazy type automatic compensation sealing circle, automatically expanding ring is inner, must seal in inside a part of gas in advance up for safekeeping, and air pressure is-0.03MPa～-0.08MPa.
Said mazy type automatic compensation sealing circle, automatic expanding ring, internal diameter is φ 5mm～φ 8mm.
Said mazy type automatic compensation sealing circle, Expansion sealing circle sealing surface thickness size is 20mm～40mm automatically.
Described mazy type automatic compensation sealing circle, the four or five sealing surface is an interference fit, interference 0.1～0.3mm.
Described mazy type automatic compensation sealing circle, primary sealing area thickness is 5mm～15mm.
Described mazy type automatic compensation sealing circle, the second and the 3rd sealing surface is an interference fit, interference 0.1～0.3mm.
Described its material of mazy type automatic compensation sealing circle is an EPDM class material.
Model utility has more effectively realized sealing through formation mazy type automatic compensation structure between 5 sealing surfaces of design and 1 automatic expanding ring of vacuum and vacuum box seal face and the chamber door, has reduced gas leakage, has improved degree of vacuum.Basis is novel can die sinking carry out modularization processing, and processing and replacing are all very convenient.
[description of drawings]
Fig. 1 is the schematic representation that comprises the mazy type automatic compensation sealing circle of the utility model.
Label declaration among the figure: A-mazy type automatic compensation sealing circle, B-chamber door, the automatic expanding ring of C-vacuum, D-vacuum box, 1-primary sealing area, 2-secondary sealing area, 3-the 3rd sealing surface, 4-the 4th sealing surface, 5-the 5th sealing surface.
[embodiment]
Below in conjunction with Figure of description the utility model is further specified.
The seal ring of the utility model is to form 5 sealing surfaces and 1 automatic expanding ring of vacuum at itself and sealed container door end face, is followed successively by the automatic expanding ring of vacuum, primary sealing area, secondary sealing area, the 3rd sealing surface, the 4th sealing surface, the 5th sealing surface.These 5 sealing surfaces are tight contact seal face.Model utility has more effectively realized sealing through formation mazy type automatic compensation structure between 5 sealing surfaces of design and 1 automatic expanding ring of vacuum and vacuum box seal face and the chamber door.
Claims (8)
1. a labyrinth sealing circle comprises 5 sealing surfaces and the automatic expanding ring of vacuum, and these 5 sealing surfaces inwardly are followed successively by the automatic expanding ring of vacuum, primary sealing area, secondary sealing area, the 3rd sealing surface, the 4th sealing surface, the 5th sealing surface from the vacuum chamber door; Said 5 sealing surfaces are tight contact seal face.
2. like claim 1 said mazy type automatic compensation sealing circle, it is characterized in that automatic expanding ring (C) inside, must seal in inside a part of gas in advance up for safekeeping, air pressure is-0.03MPa～-0.08MPa.
3. like claim 1 said mazy type automatic compensation sealing circle, it is characterized in that the automatic expanding ring of vacuum (C), internal diameter is φ 5mm～φ 8mm.
4. like claim 1 said mazy type automatic compensation sealing circle, it is characterized in that the automatic Expansion sealing circle of vacuum (A) sealing surface thickness size is 20mm～40mm.
5. like claim 1 described labyrinth sealing circle, it is characterized in that: the four or five sealing surface is an interference fit, interference 0.1～0.3mm.
6. like claim 1 described labyrinth sealing circle, it is characterized in that: primary sealing area thickness is 5～15mm.
7. like claim 1 described labyrinth sealing circle, it is characterized in that: the second and the 3rd sealing surface is an interference fit, interference 0.1～0.3mm.
8. like claim 1 described mazy type automatic compensation sealing circle, it is characterized in that material is an EPDM class material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201258604U CN202545825U (en) | 2012-03-28 | 2012-03-28 | Labyrinth type automatic compensation sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201258604U CN202545825U (en) | 2012-03-28 | 2012-03-28 | Labyrinth type automatic compensation sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545825U true CN202545825U (en) | 2012-11-21 |
Family
ID=47166463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201258604U Expired - Fee Related CN202545825U (en) | 2012-03-28 | 2012-03-28 | Labyrinth type automatic compensation sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969769A (en) * | 2020-09-01 | 2020-11-20 | 浙江力屹机电有限公司 | High-efficient radiating Y2 motor casing |
-
2012
- 2012-03-28 CN CN2012201258604U patent/CN202545825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969769A (en) * | 2020-09-01 | 2020-11-20 | 浙江力屹机电有限公司 | High-efficient radiating Y2 motor casing |
| CN111969769B (en) * | 2020-09-01 | 2021-07-02 | 浙江力屹机电有限公司 | High-efficient radiating Y2 motor casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |