CN203420974U - Single-screw anti-rotation locking structure - Google Patents
Single-screw anti-rotation locking structure Download PDFInfo
- Publication number
- CN203420974U CN203420974U CN201320363822.7U CN201320363822U CN203420974U CN 203420974 U CN203420974 U CN 203420974U CN 201320363822 U CN201320363822 U CN 201320363822U CN 203420974 U CN203420974 U CN 203420974U
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- CN
- China
- Prior art keywords
- boss
- retainer
- locking structure
- rotation locking
- screw
- 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 - Lifetime
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Abstract
The utility model relates to a single-screw anti-rotation locking structure which comprises a piece to be fastened, a retainer and a screw. A boss is arranged on the piece to be fastened, a counter bore is formed in the retainer, the boss is not cylindrical, a threaded hole is formed in the boss, the counter bore is similar to the boss in shape, the boss is inserted into the counter bore, and the screw penetrates through the counter bore to enter the threaded hole in the boss so as to fix the retainer and the piece to be fastened. According to the single-screw anti-rotation locking structure, when the boss is inserted into the counter bore and the screw penetrates through the counter bore to enter the threaded hole in the boss so as to fix the retainer and the piece to be fastened, the retainer cannot rotate around the screw due to the fact that the boss is not cylindrical and the counter bore is similar to the boss is shape. Thus, relative rotation between the retainer and the piece to be fastened can be prevented.
Description
Technical field
The utility model relates to a kind of improvement of locking structure, refers in particular to the anti-rotation locking structure of a kind of single screw.
Background technique
In prior art, prevent that the rotation of a part from often needing plural screw locking or adding that pin carrys out the rotation of limit feature.In prior art, component are many, and processing, installation procedure is many, and cost is high.
Model utility content
The utility model object be in order to overcome the deficiencies in the prior art, provide a kind of simple in structure, component are few, processing, install simple, the anti-rotation locking structure of single screw that cost is low.
For achieving the above object, the technical solution adopted in the utility model is: the anti-rotation locking structure of a kind of single screw, comprises fastener, retainer, screw; On described fastener, be provided with boss; On described retainer, be provided with counter sink; Described boss is non-cylindrical; On described boss, be provided with tapped hole; Described counter sink is similar to the shape of boss; Described boss inserts in counter sink, and described screw enters in the tapped hole on boss retainer and fastener are fixed through counter sink.
Preferably, the cross section of described boss is triangle.
Preferably, the cross section of described boss is polygonal.
Preferably, the cross section of described boss is oval.
Preferably, the cross section of described boss is non-circular shape regularly.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
The anti-rotation locking structure of single screw described in the utility model scheme, when described boss inserts in counter sink, when described screw enters in the tapped hole on boss retainer and fastener fixedly through counter sink, because described boss is non-cylindrical, described counter sink is similar to the shape of boss, retainer can not rotate around screw like this, thereby can prevent relatively rotating of retainer and fastener.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is the partial sectional view of the anti-rotation locking structure of a kind of single screw described in the utility model;
Accompanying drawing 2 is the plan view of accompanying drawing 1;
Wherein: 1, fastener; 2, retainer; 3, screw; 4, boss.
embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing 1-2 is the anti-rotation locking structure of a kind of single screw described in the utility model, comprises fastener 1, retainer 2, screw 3; On described fastener 1, be provided with boss 4; On described retainer 2, be provided with counter sink (not marking); Described boss 4 is non-cylindrical; On described boss 4, be provided with tapped hole (not marking); Described counter sink is similar to the shape of boss 4; Described boss 4 inserts in counter sink, and described screw 3 enters in the tapped hole on boss 4 retainer 2 is fixing with fastener 1 through counter sink; The cross section of boss described in the present embodiment 4 is quadrangle.Certainly, the cross section of described boss 4 can be also triangle polygonal even; Or the cross section of described boss 4 can be also ellipse non-circular shape even regularly.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
The anti-rotation locking structure of single screw described in the utility model scheme, when described boss 4 inserts in counter sink, when described screw 3 enters in the tapped hole on boss 4 retainer and fastener fixedly through counter sink, because described boss 4 is non-cylindrical, described counter sink is similar to the shape of boss 4, retainer 2 can not rotate around screw 3 like this, thereby can prevent relatively rotating of retainer 2 and fastener 1.
Below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, within all dropping on the utility model rights protection scope.
Claims (5)
1. the anti-rotation locking structure of single screw, comprises fastener, retainer, screw; It is characterized in that: on described fastener, be provided with boss; On described retainer, be provided with counter sink; Described boss is non-cylindrical; On described boss, be provided with tapped hole; Described counter sink is similar to the shape of boss; Described boss inserts in counter sink, and described screw enters in the tapped hole on boss retainer and fastener are fixed through counter sink.
2. the anti-rotation locking structure of single screw according to claim 1, is characterized in that: the cross section of described boss is triangle.
3. the anti-rotation locking structure of single screw according to claim 1, is characterized in that: the cross section of described boss is polygonal.
4. the anti-rotation locking structure of single screw according to claim 1, is characterized in that: the cross section of described boss is for oval.
5. the anti-rotation locking structure of single screw according to claim 1, is characterized in that: the cross section of described boss is non-circular shape regularly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320363822.7U CN203420974U (en) | 2013-03-28 | 2013-06-25 | Single-screw anti-rotation locking structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320144610 | 2013-03-28 | ||
| CN201320144610.X | 2013-03-28 | ||
| CN201320363822.7U CN203420974U (en) | 2013-03-28 | 2013-06-25 | Single-screw anti-rotation locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420974U true CN203420974U (en) | 2014-02-05 |
Family
ID=50020073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320363822.7U Expired - Lifetime CN203420974U (en) | 2013-03-28 | 2013-06-25 | Single-screw anti-rotation locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321992A (en) * | 2013-03-28 | 2013-09-25 | 苏州优德通力电气有限公司 | Single-screw anti-rotating locking structure |
-
2013
- 2013-06-25 CN CN201320363822.7U patent/CN203420974U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321992A (en) * | 2013-03-28 | 2013-09-25 | 苏州优德通力电气有限公司 | Single-screw anti-rotating locking structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Cheng lake road Wuzhong Economic Development Zone of Suzhou City, Jiangsu Province, No. 7 215000 Patentee after: GP Enterprises Co.,Ltd. Address before: Cheng lake road Wuzhong Economic Development Zone of Suzhou City, Jiangsu Province, No. 7 215128 Patentee before: GP ENTERPRISES Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |