CN201748096U - Glass flange type short spherical-surface joint - Google Patents
Glass flange type short spherical-surface joint Download PDFInfo
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- CN201748096U CN201748096U CN2010201559265U CN201020155926U CN201748096U CN 201748096 U CN201748096 U CN 201748096U CN 2010201559265 U CN2010201559265 U CN 2010201559265U CN 201020155926 U CN201020155926 U CN 201020155926U CN 201748096 U CN201748096 U CN 201748096U
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- flange
- glass
- spherical
- spherical surface
- utility
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Abstract
The utility model provides a glass flange type short spherical-surface joint, wherein the joint comprises an internal spherical surface and an external spherical surface that are coincident to each other; the internal spherical surface and the external spherical surface are large-diameter spherical surfaces; and the radian Alpha of the sealing surface ranges from 3 degrees to 20 degrees. The sealing unit of the glass flange type spherical-surface joint comprises a flange combination pair, a nonmetal bearing ring, a bolt pair and a pressurized spring, wherein the flange combination pair is sheathed on the bolt pair; the internal side of a flange is provided with the nonmetal bearing ring; and the pressurized spring is arranged between a nut and one side of the flange. In the utility model, by adopting the flange type connection, the contacting area of the spherical sealing surface can be reduced, the glass spherical surface can be flatter, the joint can be machined and manufactured more conveniently, and the system vacuum degree can achieve 1*10<-2> to 1*10<-4> Pa.
Description
Technical field
The utility model relates to a kind of seal arrangement, specifically is meant a kind of glass flange-type spherical joint.
Background technique
At present, general use standard ball-type joint and taper joint in the glass apparatus sealing, its sealed vacuum degree can only reach about 100Pa, is almost impossible so the short-range molecular distillation instrument system will reach condition of high vacuum degree 0.01Pa-0.0001Pa.And, the master ball plane tie is to utilize the spherical crown of 1/3-1/2 of ball as sealing surface, and processing has brought difficulty to sphere, and its grommet contact diameter that uses when connecting is inconsistent, thereby when flange connect to clamp unbalance stress, can not hold too tight (preventing to damage).In the high vacuum system, because standard is spherical and the taper ground connection requires interior external conical shape, the cooperation of inner ball surface and outer spherical surface requires very high, generally take the method for smearing the vacuum seal grease on the spherical and taper ground in standard, because vacuum system pressure ecto-entad, therefore, the incident of grease contamination system often takes place.
The model utility content
The technical problems to be solved in the utility model is the defective that overcomes prior art, provides a kind of processing and fabricating convenient, system vacuum degree height, the short ball plane tie and the sealing unit thereof of convenient attended operation.
In order to solve the problems of the technologies described above, the utility model provides following technological scheme:
Glass flange-type short ball plane tie comprises identical inner ball surface and outer spherical surface, and described inner ball surface and outer spherical surface are the major diameter sphere, and through frosted or polishing, the radian measure alpha of its sealing surface is 3 °～20 °, and the radian measure alpha of preferred sealing surface is 5 °～10 °.Described short ball plane tie material is high-boron-silicon glass or silica glass.
The sealing unit of glass flange-type spherical joint comprises flange combination pair, nonmetal supporting ring, bolt pair and pressing spring, and described flange combination pair is sheathed on the bolt pair, and the flange inboard is nonmetal supporting ring, between a nut and a side flange pressing spring is arranged.
Inner ball surface and outer spherical surface are the major diameter sphere, and its radius R connects diameter much larger than former GB GB ball, and are the flange-type connection.This flange-type ball joint structure form can reduce ball-type sealing surface area of contact, and the glass marble profile is more smooth, make its processing and fabricating convenient, make spherojoint in circularity, be easier to reach the standard-required under the condition of high vacuum degree on the degree of finish etc., the system vacuum degree can reach 1 * 10
-2～10
-4Pa.Simultaneously, this special-purpose sealing unit can convenient attended operation, and axis nonstraightness deviation still can effectively be sealed with interior at 10 degree, cushioning effect is in use arranged, can prolong glass apparatus working life greatly,, also not have grease contamination and take place owing to need not smear the vacuum seal grease when using.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with embodiment one of the present utility model, does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model glass flange-type short ball plane tie;
Fig. 2 is the structural representation that short ball plane tie of the present utility model and sealing unit are used in combination.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, glass flange-type short ball plane tie 1 comprises frosted and identical inner ball surface and outer spherical surface, and inner ball surface and outer spherical surface are the major diameter sphere, and the radian measure alpha of its sealing surface is 3 °, and short ball plane tie material is a high-boron-silicon glass.
The sealing unit of glass flange-type spherical joint, comprise flange combination pair 3, nonmetal supporting ring 2, bolt secondary 5 and pressing spring 4, the secondary cover 3 of flange combination is located on the bolt pair 5, and the flange inboard is nonmetal supporting ring 2, between a nut and a side flange pressing spring 4 is arranged.
As shown in Figure 2, the sealing unit of above-mentioned glass flange-type spherical joint and glass flange-type short ball plane tie are used in combination the method that obtains condition of high vacuum degree is, (1) 2 nonmetal supporting ring 2 is close to the outside of inner ball surface block 11 and the outside of outer spherical surface block 12 respectively, (2) in the middle of flange combination pair 3 is clamped on 2 nonmetal supporting rings 2, (3) thus bolt pair 5, pressing spring 4 cooperates and screws flange combination secondary 3 fixingly, the system vacuum degree can reach 1 * 10
-2～10
-4Pa.
As shown in Figure 1, glass flange-type short ball plane tie 1 comprises frosted and identical inner ball surface and outer spherical surface, and inner ball surface and outer spherical surface are the major diameter sphere, and the radian measure alpha of its sealing surface is 20 °, and short ball plane tie material is a silica glass.
The sealing unit of glass flange-type spherical joint, comprise flange combination pair 3, nonmetal supporting ring 2, bolt secondary 5 and pressing spring 4, the secondary cover 3 of flange combination is located on the bolt pair 5, and the flange inboard is nonmetal supporting ring 2, between a nut and a side flange pressing spring 4 is arranged.
As shown in Figure 2, the sealing unit of above-mentioned glass flange-type spherical joint and glass flange-type short ball plane tie are used in combination the method that obtains condition of high vacuum degree is, (1) 2 nonmetal supporting ring 2 is close to the outside of inner ball surface block 11 and the outside of outer spherical surface block 12 respectively, (2) in the middle of flange combination pair 3 is clamped on 2 nonmetal supporting rings 2, (3) thus bolt pair 5, pressing spring 4 cooperates and screws flange combination secondary 3 fixingly, the system vacuum degree can reach 1 * 10
-2～10
-4Pa.
As shown in Figure 1, glass flange-type short ball plane tie 1 comprises polishing and the inner ball surface and the outer spherical surface that coincide, and inner ball surface and outer spherical surface are the major diameter sphere, and the radian measure alpha of its sealing surface is 5 °, and short ball plane tie material is a silica glass.
The sealing unit of glass flange-type spherical joint, comprise flange combination pair 3, nonmetal supporting ring 2, bolt secondary 5 and pressing spring 4, the secondary cover 3 of flange combination is located on the bolt pair 5, and the flange inboard is nonmetal supporting ring 2, between a nut and a side flange pressing spring 4 is arranged.
As shown in Figure 2, the sealing unit of above-mentioned glass flange-type spherical joint and glass flange-type short ball plane tie are used in combination the method that obtains condition of high vacuum degree is, (1) 2 nonmetal supporting ring 2 is close to the outside of inner ball surface block 11 and the outside of outer spherical surface block 12 respectively, (2) in the middle of flange combination pair 3 is clamped on 2 nonmetal supporting rings 2, (3) thus bolt pair 5, pressing spring 4 cooperates and screws flange combination secondary 3 fixingly, the system vacuum degree can reach 1 * 10
-2～10
-4Pa.
Embodiment 4
As shown in Figure 1, glass flange-type short ball plane tie 1 comprises polishing and the inner ball surface and the outer spherical surface that coincide, and inner ball surface and outer spherical surface are the major diameter sphere, and the radian measure alpha of its sealing surface is 10 °, and short ball plane tie material is a high-boron-silicon glass.
The sealing unit of glass flange-type spherical joint, comprise flange combination pair 3, nonmetal supporting ring 2, bolt secondary 5 and pressing spring 4, the secondary cover 3 of flange combination is located on the bolt pair 5, and the flange inboard is nonmetal supporting ring 2, between a nut and a side flange pressing spring 4 is arranged.
As shown in Figure 2, the sealing unit of above-mentioned glass flange-type spherical joint and glass flange-type short ball plane tie are used in combination the method that obtains condition of high vacuum degree is, (1) 2 nonmetal supporting ring 2 is close to the outside of inner ball surface block 11 and the outside of outer spherical surface block 12 respectively, (2) in the middle of flange combination pair 3 is clamped on 2 nonmetal supporting rings 2, (3) thus bolt pair 5, pressing spring 4 cooperates and screws flange combination secondary 3 fixingly, the system vacuum degree can reach 1 * 10
-2～10
-4Pa.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. glass flange-type short ball plane tie comprises identical inner ball surface and outer spherical surface, it is characterized in that: described inner ball surface and outer spherical surface are the major diameter sphere, and the radian measure alpha of its sealing surface is 3 °～20 °.
2. glass flange-type short ball plane tie according to claim 1, it is characterized in that: described inner ball surface and outer spherical surface are frosting or burnishing surface.
3. glass flange-type short ball plane tie according to claim 1 is characterized in that: the radian measure alpha of described sealing surface is 5 °～10 °.
4. glass flange-type short ball plane tie according to claim 1 is characterized in that: described short ball plane tie material is high-boron-silicon glass or silica glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201559265U CN201748096U (en) | 2010-04-12 | 2010-04-12 | Glass flange type short spherical-surface joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201559265U CN201748096U (en) | 2010-04-12 | 2010-04-12 | Glass flange type short spherical-surface joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748096U true CN201748096U (en) | 2011-02-16 |
Family
ID=43582774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201559265U Expired - Fee Related CN201748096U (en) | 2010-04-12 | 2010-04-12 | Glass flange type short spherical-surface joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213353A (en) * | 2010-04-12 | 2011-10-12 | 蒋宏峰 | Glass flange type short spherical joint and sealing unit thereof |
-
2010
- 2010-04-12 CN CN2010201559265U patent/CN201748096U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213353A (en) * | 2010-04-12 | 2011-10-12 | 蒋宏峰 | Glass flange type short spherical joint and sealing unit thereof |
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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: 20110216 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |