CN204298259U - The sealing structure of vacuum glass pumping hole - Google Patents
The sealing structure of vacuum glass pumping hole Download PDFInfo
- Publication number
- CN204298259U CN204298259U CN201420813069.1U CN201420813069U CN204298259U CN 204298259 U CN204298259 U CN 204298259U CN 201420813069 U CN201420813069 U CN 201420813069U CN 204298259 U CN204298259 U CN 204298259U
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- China
- Prior art keywords
- glass
- bleeding point
- wall pipe
- light
- sealing structure
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of sealing structure of vacuum glass pumping hole, it comprises two glass sheets of parallel placement, supporter is provided with in the middle of two glass sheets, peripheral sealing, a described wherein glass sheets is provided with bleeding point, a light-wall pipe is provided with in described bleeding point, one end of described light-wall pipe is closed, blind end is near the outside of described bleeding point place glass, described light-wall pipe does not exceed the outer surface of bleeding point place glass, and the gap between described light-wall pipe and bleeding point is sealed by low-melting glass.This sealing structure is simple, reliable, be easy to operation and realize, and outward appearance is more attractive in appearance.
Description
Technical field
The utility model relates to a kind of sealing structure of vacuum glass pumping hole.
Background technology
Vacuum glass is generally made up of two pieces or polylith plate glass plate, and glass plate surrounding seals, and centre is provided with small supporter, makes the air pressure in space between adjacent two pieces of glass plates lower than atmospheric pressure by bleeding.Because the convection action of gas reduces, therefore, vacuum glass has the effect of good heat insulation, sound insulation.
Usually, vacuum glass is after the edge of two sheet glass carries out soldering and sealing, and inside cavity gas is discharged by reserved air exhaust nozzle, makes its internal pressure be less than atmospheric pressure and form vacuum.The making of air exhaust nozzle is generally reserved aspirating hole on a sheet glass wherein, and in aspirating hole placing glass exhaust tube, by low-melting glass, exhaust tube is formed air exhaust nozzle together with glass solder.Subsequently exhaust tube is connected vacuum system to vacuumize, until glass formed inside cavity vacuum reach setting require time, the scorification of bleeding point one end is sealed.There is following problem in the method for sealing of this bleeding point: can stay higher than glass surface " tail " after the scorification of air exhaust nozzle end; in order to avoid air exhaust nozzle accidental damage causes vacuum glass to be scrapped; usual needs increase protective cap in addition and are covered by air exhaust nozzle, not only complex procedures, affect outward appearance but also still there is hidden danger.Meanwhile, when air exhaust nozzle makes, between glass exhaust tube and sheet glass, welding need use low-melting glass to heat monolithic glass, heating-up temperature is higher than 450 DEG C, can cause the annealing of safety glass, therefore, such preparation method can not produce toughened vacuum glass.
Utility model content
For solving the problem, the purpose of this utility model is the sealing structure providing a kind of vacuum glass pumping hole.
For achieving the above object, the utility model discloses a kind of sealing structure of vacuum glass pumping hole, this sealing structure comprises: two glass sheets of parallel placement, supporter is provided with in the middle of two glass sheets, peripheral sealing, wherein a glass sheets is provided with bleeding point, a light-wall pipe is provided with; one end of light-wall pipe is closed; blind end is near the outside of described bleeding point place glass; described light-wall pipe does not exceed the outer surface of bleeding point place glass, and the gap between described light-wall pipe and bleeding point is sealed by low-melting glass in described bleeding point.
Further, described light-wall pipe is glass tube or the fusing point metal higher than low-melting glass.
Further, described fusing point is kovar alloy higher than the metal of low-melting glass.
Further, described low-melting glass is graininess.
Further, the blind end outside of described light-wall pipe covers and is tightly connected with described bleeding point by described low-melting glass completely.
Like this, first place light-wall pipe at bleeding point, low-melting glass is placed in gap between light-wall pipe and bleeding point, bled by the close gap between bleeding point and light-wall pipe and low-melting glass, bleed reach setting vacuum after, heat low-melting glass, the low-melting glass of molten condition penetrates in the gap between light-wall pipe and bleeding point, realizes sealing bleeding point.This sealing structure is simple, reliable, be easy to operation and realize, and outward appearance is more attractive in appearance.Meanwhile, the mode of local heat when the low-melting glass between described light-wall pipe and bleeding point heats, can be adopted, avoid the annealing heating of monoblock armorplate glass being caused to armorplate glass, therefore also may be used for producing toughened vacuum glass.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
embodiment 1
As shown in Figure 1, a kind of sealing structure of vacuum glass pumping hole comprises: two glass sheets 1 of parallel placement, supporter 2 is provided with in the middle of two glass sheets 1, periphery is sealed by sealing-in limit 3, wherein a glass sheets is provided with bleeding point 4, be provided with the light-wall pipe 5 that an one end is closed in bleeding point 4, and make the blind end of this light-wall pipe 5 near the outside of bleeding point 4 place glass 1, light-wall pipe 5 does not exceed the outer surface of bleeding point place glass 1.The material of light-wall pipe 5 is glass or the fusing point metal higher than low-melting glass, and wherein metal is preferably kovar alloy.
During sealing-in, the low-melting glass 6 of molten condition constantly infiltrates the gap between light-wall pipe 5 and bleeding point 4, realizes light-wall pipe 5 and bleeding point 4 hermetic seal, and then realizes the sealing-in to bleeding point.
In addition, in order to realize sealing better, the blind end outside of light-wall pipe 5 can cover and be tightly connected with bleeding point 4 by low-melting glass 6 completely; Owing to being filled with more low-melting glass, the sealing-in area of low-melting glass and bleeding point is larger, so air-tightness is more excellent.
The thermal coefficient of expansion of the light-wall pipe in the present embodiment and glass are very close, thus when sealing-in heating or routine use, can realize the hermetic seal of bleeding point better, and longer service life.Wherein the wall thickness of light-wall pipe is determined according to the material of bleeding point size or glass plate, is generally 0.1-1mm.
Below only describe the preferred embodiment of the application by reference to the accompanying drawings, but the application is not limited thereto, every those of ordinary skill in the art are under the spirit not departing from the application, and any improvement made and/or distortion, all belong to the protection domain of the application.
Claims (5)
1. the sealing structure of a vacuum glass pumping hole, it comprises: two glass sheets of parallel placement, be provided with supporter, peripheral sealing in the middle of two glass sheets, wherein a glass sheets be provided with bleeding point, it is characterized in that, be provided with a light-wall pipe in described bleeding point, one end of light-wall pipe is closed, and blind end is near the outside of described bleeding point place glass, described light-wall pipe does not exceed described bleeding point, and the gap between described light-wall pipe and described bleeding point is sealed by low-melting glass.
2. sealing structure as claimed in claim 1, is characterized in that, described light-wall pipe is glass tube or the fusing point metal higher than low-melting glass.
3. sealing structure as claimed in claim 2, it is characterized in that, described fusing point is kovar alloy higher than the metal of low-melting glass.
4. sealing structure as claimed in claim 1, it is characterized in that, described low-melting glass is graininess.
5. sealing structure as claimed in claim 1, it is characterized in that, the blind end outside of described light-wall pipe covers and is tightly connected with described bleeding point by described low-melting glass completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813069.1U CN204298259U (en) | 2014-12-22 | 2014-12-22 | The sealing structure of vacuum glass pumping hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813069.1U CN204298259U (en) | 2014-12-22 | 2014-12-22 | The sealing structure of vacuum glass pumping hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204298259U true CN204298259U (en) | 2015-04-29 |
Family
ID=53103817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420813069.1U Expired - Fee Related CN204298259U (en) | 2014-12-22 | 2014-12-22 | The sealing structure of vacuum glass pumping hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204298259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984962A (en) * | 2021-02-05 | 2021-06-18 | 上海东富龙科技股份有限公司 | Experimental type freeze dryer glass casing box structure |
| US11060342B2 (en) | 2017-02-17 | 2021-07-13 | Vkr Holding A/S | Vacuum insulated glazing unit |
-
2014
- 2014-12-22 CN CN201420813069.1U patent/CN204298259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11060342B2 (en) | 2017-02-17 | 2021-07-13 | Vkr Holding A/S | Vacuum insulated glazing unit |
| CN112984962A (en) * | 2021-02-05 | 2021-06-18 | 上海东富龙科技股份有限公司 | Experimental type freeze dryer glass casing box structure |
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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: 20150429 Termination date: 20211222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |