CN201786866U - Shielding cover type combined nut - Google Patents
Shielding cover type combined nut Download PDFInfo
- Publication number
- CN201786866U CN201786866U CN2010202545414U CN201020254541U CN201786866U CN 201786866 U CN201786866 U CN 201786866U CN 2010202545414 U CN2010202545414 U CN 2010202545414U CN 201020254541 U CN201020254541 U CN 201020254541U CN 201786866 U CN201786866 U CN 201786866U
- Authority
- CN
- China
- Prior art keywords
- combined nut
- shielding cover
- utility
- cover type
- sphere
- Prior art date
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a shielding cover type combined nut. The combined nut comprises a hollow body with a shell similar to a hemisphere; standard threads are formed in the middle of the hollow body; small holes for pouring glue are further formed on the spherical surface above the standard threads; and at least two holes for fastening are formed on the spherical surface. The combined nut has the benefits of great mechanical strength and ideal electrode shape, and is convenient to mount.
Description
Technical field
The utility model relates to a kind of fixing shielding bell-type assembled nut of lower oil tank magnetic shielding that is used for, and relates in particular to the structure of this shielding bell-type assembled nut.
Background technique
As seen from Figure 1: be that mode by the 101 usefulness locking nuts 102 of the screw rod on the lower oil tank 10, large washer 103, small washer 104 and shielding cap 105 is (among the figure: magnetic shielding 106).But concentrating on less zone owing to packing ring is stressed greatly causes packing ring often to have the situation of fracture to take place, and this nut, packing ring and shielding cap are in the high field intensity zone of coil below, in case fracture takes place packing ring will be owing to the generation of bad connection guiding discharge phenomenon, in transformer, produce partial discharge, influence the performance index of transformer.Also exist component more, loaded down with trivial details drawback is installed, be not easy to the control of fastening quality.
Summary of the invention
The utility model technical issues that need to address have provided a kind of shielding bell-type assembled nut, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: shell is similar to hemispheric solid body; Centre at solid body has standard thread; On the sphere above the standard thread, also leave the aperture of encapsulating; On sphere, distribute at least two and be used for fastening auxiliary hole.
Compared with prior art, the beneficial effects of the utility model are: both convenient the installation has good mechanical intensity and desirable electrode shape again.
Description of drawings
Fig. 1 is that shielding bell-type assembled nut is assembled in structural representation on the lower oil tank in the prior art;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the attached view of Fig. 2;
Fig. 4 is that Fig. 3 E-E is to sectional view;
Fig. 5 is that Fig. 3 C-C is to sectional view.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
By Fig. 2-Fig. 5 as seen: the utility model comprises: shell is similar to hemispheric solid body 1; Have standard thread 2 in the centre of solid body 1; On the sphere above the standard thread 2, also leave the aperture 4 of encapsulating; On sphere, distribute at least two and be used for fastening auxiliary hole 3;
Described auxiliary hole 3 is 4;
Described 4 auxiliary holes 3 are evenly distributed on the sphere.
Appearance profile of the present utility model is similar to hemisphere, and arc transition is level and smooth, smooth surface, the middle standard thread specification that adopts, distributing on the sphere is used for 4 fastening auxiliary holes, utilizes instrument to screw nut by this hole during installation, and the top has aperture and is convenient to the injection of screw-threaded coupling glue is prevented thread looseness.
The efficient that adopts the utility model not only to install has improved greatly, and mechanical strength is better, does not have the possibility of fracture.
The utility model contacts with the surface of lower oil tank magnetic shielding and also becomes more reliable, because contact is reliable and electrode shape no longer includes the electric discharge phenomena generation again well.
Claims (3)
1. one kind shields the bell-type assembled nut, and it is characterized in that: comprising: shell is similar to hemispheric solid body; Centre at solid body has standard thread; On the sphere above the standard thread, also leave the aperture of encapsulating; On sphere, distribute at least two and be used for fastening auxiliary hole.
2. shielding bell-type assembled nut according to claim 1 is characterized in that: described auxiliary hole is 4.
3. shielding bell-type assembled nut according to claim 2 is characterized in that: described 4 auxiliary holes are evenly distributed on the sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202545414U CN201786866U (en) | 2010-07-09 | 2010-07-09 | Shielding cover type combined nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202545414U CN201786866U (en) | 2010-07-09 | 2010-07-09 | Shielding cover type combined nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786866U true CN201786866U (en) | 2011-04-06 |
Family
ID=43818830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202545414U Expired - Fee Related CN201786866U (en) | 2010-07-09 | 2010-07-09 | Shielding cover type combined nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917802A (en) * | 2017-02-27 | 2017-07-04 | 厦门理工学院 | A kind of shelf depreciation tests coupling bolt structure |
-
2010
- 2010-07-09 CN CN2010202545414U patent/CN201786866U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917802A (en) * | 2017-02-27 | 2017-07-04 | 厦门理工学院 | A kind of shelf depreciation tests coupling bolt structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI ELECTRIC ALSTOM BAOSHAN TRANSFORMERS CO., Free format text: FORMER NAME: SHANGHAI ELECTRIC AREVA BAOSHAN TRANSFORMERS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 200444 No. 3588 Hu Tai Road, Shanghai Patentee after: Shanghai Electric Alstom Baoshan Transformers Co., Ltd. Address before: 200444 No. 3588 Hu Tai Road, Shanghai Patentee before: Shanghai Electric Group Company AREVA Shanghai Transformer Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20130709 |