CN204664419U - Air-pressure type sealing device - Google Patents
Air-pressure type sealing device Download PDFInfo
- Publication number
- CN204664419U CN204664419U CN201520300476.7U CN201520300476U CN204664419U CN 204664419 U CN204664419 U CN 204664419U CN 201520300476 U CN201520300476 U CN 201520300476U CN 204664419 U CN204664419 U CN 204664419U
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- sealed groove
- sealing gasket
- air
- seal
- pressure type
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Abstract
The utility model discloses a kind of air-pressure type sealing device, comprise seal face, described seal face is provided with sealed groove, the pore be communicated with external air source is provided with in described sealed groove, described pore is connected with air valve, the flexible sealing gasket of floating packing in described sealed groove, the size of described elastic sealing gasket and sealed groove is suitable, forms seal chamber between described sealed groove and elastic sealing gasket.The utility model structure is simple, and long service life, good sealing effect, can realize lasting seals, can reduce the flatness requirement of seal face, can reduce user cost.
Description
Technical field
The utility model relates to a kind of seal arrangement, is specifically related to a kind of air-pressure type sealing device.
Background technique
At present, existing gas-insulateds etc. have in the device of airtight requirement, for the attachment face that plane connects, as valve, sealing cover etc., sealed by seal face, especially have in the tank body of air pressure, pipeline, during sealing, generally cylinder or valve can be adopted to seal according to the size of gas pressure in tank, at this moment seal face needs to adopt larger power to seal, and in long seal process, easily wear and tear, easily like this cause leakage; For improving sealing effect, seal ring is adopted at seal face, good seal action can be played over a period to come by seal ring, but long-time use inevitably makes rubber sealing ring physical deterioration, make gap become large, the elastic properties of materials that the higher side gas of air pressure can be made like this to overcome seal ring is under pressure from the contact segment of seal ring and sealing surface to low voltage side seepage, and inside and outside pressure difference is larger, the trend of this seepage is stronger, thus have impact on sealing effect.In addition, seal face out-of-flatness, easily reveals, and can only scrap, add cost.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, and provide a kind of structure simple, long service life, good sealing effect, can realize lasting seals, can reduce the flatness requirement of seal face, can reduce the air-pressure type sealing device of user cost.
Its technological scheme is: air-pressure type sealing device, comprise seal face, described seal face is provided with sealed groove, the pore be communicated with external air source is provided with in described sealed groove, described pore is connected with air valve, the flexible sealing gasket of floating packing in described sealed groove, the size of described elastic sealing gasket and sealed groove is suitable, forms seal chamber between described sealed groove and elastic sealing gasket.
Described sealed groove is the annular seal grooves coaxially arranged with end face.
Described elastic sealing gasket is silicagel pad.
The utility model compared with prior art, has the following advantages: structure is simple, and long service life, good sealing effect, can realize lasting seals, can reduce the flatness requirement of seal face, can reduce user cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the plan view of Fig. 1.
Embodiment
See figures.1.and.2, air-pressure type sealing device, comprise seal face 1, described seal face 1 is provided with sealed groove 2, be provided with the pore 3 be communicated with external air source in described sealed groove 2, described pore 3 is connected with air valve 4, the flexible sealing gasket 5 of floating packing in described sealed groove 2, described elastic sealing gasket 5 is suitable with the size of sealed groove 2, forms seal chamber between described sealed groove 2 and elastic sealing gasket 5.
Described sealed groove 2 is the annular seal grooves coaxially arranged with end face.
Described elastic sealing gasket 5 is silicagel pad.The cushion that also can be able to seal for gas.
In use, elastic sealing gasket 5 is filled in annular seal grooves 2, so when sealing is desired, seal face 1 is contacted with needing the device sealed, like this by the compression such as cylinder or valve, form enclosed cavity, due in the course of the work, the gas of closed chamber inside applies pressure to the top of seal face 1, pressure can be applied like this to the outer surface of elastic sealing gasket 5, at this moment, inflate in the seal chamber formed between sealed groove 2 and elastic sealing gasket 5 through pore 3 by air valve 4, like this when on high-tension side gas is to can first through the internal surface of elastic sealing gasket 5 during low voltage side seepage, and larger pressure is produced to it, this pressure acts on the internal surface of elastic sealing gasket 5, the body material of elastic sealing gasket 5 is exerted pressure in sealed groove 2, and in seal chamber, apply gas by air valve 4, it is made to apply pressure to another surface of elastic sealing gasket 5, the pressure on such both sides makes the outer distending of elastic sealing gasket 5 and closely presses on the contact surface, inner pressure is larger, the pressure that seal ring body material compresses surface of contact is also larger, thus ensure that good sealing effect.
Less gas can be applied by air valve 4, elastic sealing gasket 5 can be made to fit tightly on seal face 1 with opposite side seal arrangement, by applying the pressure of gas and the gas pressure of closed chamber, and the elastic force of elastic sealing gasket 5, make a concerted effort to cooperatively interact, machine is closed, can sealing effect be improved like this.And low to the flatness requirement of seal face 1, can labor intensity be reduced.Long when deployed, after sealing difference, inflate in seal chamber by air valve 4 and regulate pressure, elastic sealing gasket 5 is fitted between two end faces closely, thus recover closed leakproofness.Can require that Inflatable pressure-regulating is repeated multiple times according to end face like this, the working life of seal arrangement can be extended.
The utility model can be used for the machinery, valve etc. of the sealing of various hydraulic pressure installation, pneumatic shuttle and all kinds of needs, long service life, good sealing effect, can lasting seals be realized, the flatness requirement of seal face can be reduced, can user cost be reduced, application area is wide, superior performance.
Claims (3)
1. air-pressure type sealing device, it is characterized in that: comprise seal face, described seal face is provided with sealed groove, the pore be communicated with external air source is provided with in described sealed groove, described pore is connected with air valve, the flexible sealing gasket of floating packing in described sealed groove, the size of described elastic sealing gasket and sealed groove is suitable, forms seal chamber between described sealed groove and elastic sealing gasket.
2. air-pressure type sealing device according to claim 1, is characterized in that: described sealed groove is the annular seal grooves coaxially arranged with end face.
3. air-pressure type sealing device according to claim 1, is characterized in that: described elastic sealing gasket is silicagel pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300476.7U CN204664419U (en) | 2015-05-12 | 2015-05-12 | Air-pressure type sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300476.7U CN204664419U (en) | 2015-05-12 | 2015-05-12 | Air-pressure type sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664419U true CN204664419U (en) | 2015-09-23 |
Family
ID=54134802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520300476.7U Expired - Fee Related CN204664419U (en) | 2015-05-12 | 2015-05-12 | Air-pressure type sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811478A (en) * | 2020-12-22 | 2021-05-18 | 宿州市胜龙新材料科技有限公司 | Bromododecane process water recovery processing equipment |
-
2015
- 2015-05-12 CN CN201520300476.7U patent/CN204664419U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811478A (en) * | 2020-12-22 | 2021-05-18 | 宿州市胜龙新材料科技有限公司 | Bromododecane process water recovery processing equipment |
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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: 20150923 Termination date: 20160512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |