CN203770632U - Axial sealing structure of radiation detector - Google Patents
Axial sealing structure of radiation detector Download PDFInfo
- Publication number
- CN203770632U CN203770632U CN201420124737.XU CN201420124737U CN203770632U CN 203770632 U CN203770632 U CN 203770632U CN 201420124737 U CN201420124737 U CN 201420124737U CN 203770632 U CN203770632 U CN 203770632U
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- CN
- China
- Prior art keywords
- sealing
- top pressure
- pressure closure
- top cover
- radiation detector
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of nuclear radiation detection and provides an axial sealing structure of a nuclear radiation detector. The axial sealing structure comprises a barrel casing, a sealing top cover, a sealing press cover and a sealing ring. The sealing top cover and the sealing press cover are arranged in the barrel casing, the sealing top cover is arranged on the end portion of the barrel casing, the sealing top cover and the sealing press cover are connected through a plurality of tensioning screws, and a sealing ring is arranged between the sealing top cover and the sealing press cover. The axial sealing structure is located on the inner side of a detector barrel, is compact in structure, cannot increase the outer diameter of a large detector barrel, has low requirements for machining accuracy, achieves sealing by extruding the sealing ring, and is adjustable in sealing tightness, reliable in sealing performance and convenient to install.
Description
Technical field
The utility model belongs to nuclear radiation detection technical field, relates to a kind of axial seal structure of radiation detector.
Background technique
In the cylindrical shell of nuclear radiation detector, control circuit board is often all installed, affect the electrical signal producing for the treatment of prober because of radiation environment.Axial seal structure, can prevent that airborne moisture and dust from entering prober inside reliably, thereby has ensured the dry and clean of inner control circuit board, and then has guaranteed the good detection performance of prober, and has extended the working life of prober.
At present, common axial seal structure has two kinds: one is " flange plate " structure, and one is " piston type " structure." flange plate " structure is to adopt the form of upper and lower flange compresses seal to reach the effect of sealing, and the flanged surface of this structure can increase the external diameter of prober, thereby its using scope is diminished; " piston type " structure is to adopt to slot in axle, after fixed seal ring, directly inserts in cylindrical shell, and this structure is very high to the requirement on machining accuracy of member, and the too little sealing of fixed seal ring incessantly, is too greatly installed difficulty.
Summary of the invention
The purpose of this utility model is exactly in order to overcome above-mentioned the deficiencies in the prior art part, and provides a kind of axial seal structure of radiation detector, this axial seal structure to be positioned at prober cylindrical shell inner side, and structure is compact, can not increase the external diameter of prober cylindrical shell; Requirement on machining accuracy is not high, realizes sealing by crush seal circle, and sealing degree of tightness is adjustable, and sealability is reliable, easy for installation.
The technological scheme that the utility model solves its technical problem employing is: a kind of axial seal structure of radiation detector, comprise cylinder shell, top pressure closure, sealing gland and seal ring, described top pressure closure and sealing gland are placed in cylinder shell, described top pressure closure is arranged on the end of cylinder shell, described top pressure closure is connected by some stretching screws with sealing gland, between described top pressure closure and sealing gland, is provided with seal ring.Screw stretching screw, impel the gap between top pressure closure and sealing gland constantly to reduce, and then crush seal circle it is expanded outward, thereby completely cut off the connection of the inside and outside air of cylindrical shell, reach the object of axial seal.
In technique scheme, described cylinder shell is connected by some locking countersunk head nails with top pressure closure.
The beneficial effects of the utility model are: this axial seal structure is positioned at prober cylindrical shell inner side, and structure is compact, can not increase the external diameter of prober cylindrical shell; Requirement on machining accuracy is not high, realizes sealing by crush seal circle, and sealing degree of tightness is adjustable, and sealability is reliable, easy for installation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1. cylinder shell, 2. locking countersunk head nail, 3. top pressure closure, 4. sealing gland, 5. stretching screw, 6. seal ring.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is further described.
As shown in Figure 1, a kind of axial seal structure of radiation detector, comprise cylinder shell 1, top pressure closure 3, sealing gland 4 and seal ring 6, described top pressure closure 3 is placed in cylinder shell 1 with sealing gland 4, described top pressure closure 3 is arranged on the end of cylinder shell 1, described top pressure closure 4 is connected by four stretching screws 5 with sealing gland 5, between described top pressure closure 3 and sealing gland 4, is provided with seal ring 6.
Described cylinder shell 1 is connected by six locking countersunk head nails 2 with top pressure closure 3.
While using the utility model, first, four stretching screws 5 of top pressure closure 3 and sealing gland 4 use are connected, and seal ring 6 is positioned between top pressure closure 3 and sealing gland 4, lock a little stretching screw, seal ring 6 is pressed between top pressure closure 3 and sealing gland 4 uniformly, thereby formation black box, black box is inserted in cylinder shell 1, with six locking countersunk heads nails 2, cylinder shell 1 is connected also fasteningly with top pressure closure 3, become an entirety.Then, screw stretching screw 5, thereby the gap between top pressure closure 3 and sealing gland 4 is constantly reduced, and then crush seal circle 6, seal ring 6 is squeezed, and distortion is outside expands, contact gradually with the inwall of cylinder shell 1 until the connection of the isolated inside and outside air of cylindrical shell, reach the object of axial seal.
Claims (2)
1. the axial seal structure of a radiation detector, comprise cylinder shell, top pressure closure, sealing gland and seal ring, it is characterized in that: described top pressure closure and sealing gland are placed in cylinder shell, described top pressure closure is arranged on the end of cylinder shell, described top pressure closure is connected by some stretching screws with sealing gland, between described top pressure closure and sealing gland, is provided with seal ring.
2. the axial seal structure of a kind of radiation detector according to claim 1, is characterized in that: described cylinder shell and top pressure closure are clenched and are solidly connected by some locking countersunk heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420124737.XU CN203770632U (en) | 2014-03-19 | 2014-03-19 | Axial sealing structure of radiation detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420124737.XU CN203770632U (en) | 2014-03-19 | 2014-03-19 | Axial sealing structure of radiation detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770632U true CN203770632U (en) | 2014-08-13 |
Family
ID=51287823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420124737.XU Expired - Fee Related CN203770632U (en) | 2014-03-19 | 2014-03-19 | Axial sealing structure of radiation detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606337A (en) * | 2021-07-30 | 2021-11-05 | 上海汉虹精密机械有限公司 | High vacuum sealing structure for inner circle of quartz cylinder |
-
2014
- 2014-03-19 CN CN201420124737.XU patent/CN203770632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606337A (en) * | 2021-07-30 | 2021-11-05 | 上海汉虹精密机械有限公司 | High vacuum sealing structure for inner circle of quartz cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151204 Address after: 19 No. 430205 Hubei province Wuhan city Jiangxia District Yangqiao Lake Avenue Patentee after: Wuhan Haiwang Nuclear Energy Equipment Engineering Co., Ltd. Address before: 430064 Zhongshan Road, Wuchang, Hubei, No. 450, Patentee before: No.719 Inst. China Shipping Heavy Industry Group Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20170319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |