CN201525221U - Anti-skidding compass - Google Patents
Anti-skidding compass Download PDFInfo
- Publication number
- CN201525221U CN201525221U CN2009202539092U CN200920253909U CN201525221U CN 201525221 U CN201525221 U CN 201525221U CN 2009202539092 U CN2009202539092 U CN 2009202539092U CN 200920253909 U CN200920253909 U CN 200920253909U CN 201525221 U CN201525221 U CN 201525221U
- Authority
- CN
- China
- Prior art keywords
- compass
- circle
- skidding
- channel bar
- groove rod
- 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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- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The utility model discloses an anti-skidding compass which is provided with a suction cup. When drawing a circle, the circle center of the compass is fixed by the suction cup; a groove rod with scales is connected with the suction cup by a rotating shaft and a nut; the groove rod can rotate freely; the radius of the circle can be adjusted by the movement of a pencil holder on the groove rod with scales; and a bolt can move in a groove of the groove rod and can determine the radius of the circle after being fixed on the groove rod. The anti-skidding compass is convenient and practical to be used for drawing on a smooth blackboard, overcomes the defect that the ordinary compass is easy to skid and not easy to fix on a smooth surface, provides a convenient and practical drawing tool for teachers and also provides a novel compass.
Description
Technical field the utility model relates to anti-skidding compasses, be particularly suitable for the teacher with chalk at the blackboard upper drawing circle, can be used for also that clothes re-pack or the pincers worker blanking.
The common compasses bipod of background technology is pointed, draws on the blackboard that metal, glass, plastics are made and slides easily, and circle centre position is difficult for fixing, and the size of radius is change easily also, and not easy to operate, the circle that draws is nonstandard sometimes, imperfect.
The summary of the invention the purpose of this utility model will provide a kind of anti-skidding compasses exactly, and it can overcome common compasses non-type problem when the upper drawing circle of smooth plane effectively.
The purpose of this utility model is achieved in that to have sucker, drawing bowlder compasses circle centre position fixes with sucker, band scale channel bar is connected with nut by rotating shaft with sucker, channel bar is free to rotate, pen container moves on band scale channel bar can regulate radius, bolt can move in groove, can determine radius of a circle after being fixed on the channel bar.
The utility model is connected sucker with screw, nut with channel bar, can tightly can be loose, and loosening screw can make pen container slide on channel bar, tightens the screw and can fix pen container, and channel bar is free to rotate, and sucker is fixed in the rotating shaft.
Appended drawings is the structural representation of the anti-skidding compasses of the utility model, and the utility model is described in further detail below in conjunction with accompanying drawing.
Specific embodiment accompanying drawing shows the structure of the anti-skidding compasses of the utility model, has sucker 1, it is characterized in that: it is fixing with sucker 1 to draw bowlder compasses circle centre position, band scale channel bar 4 is connected with nut 2 by rotating shaft 3 with sucker 1, channel bar 4 is free to rotate, pen container 7 moves on band scale channel bar 4 can regulate radius, and bolt 5 can move in groove 6, can determine radius of a circle after being fixed on the channel bar 4.The utility model is drawn convenient and practical on smooth blackboard, and it is easily sliding on shiny surface to have overcome common compasses, is difficult for fixing shortcoming, for the teacher provides a kind of convenient and practical drawing tool, also provides a kind of new modeling of compasses.
Claims (1)
1. anti-skidding compasses, has sucker (1), it is characterized in that: it is fixing with sucker (1) to draw bowlder compasses circle centre position, band scale channel bar (4) is connected with nut (2) by rotating shaft (3) with sucker (1), channel bar (4) is free to rotate, pen container (7) is gone up to move at band scale channel bar (4) and can be regulated radius, and bolt (5) can move in groove (6), is fixed on and can determines radius of a circle after channel bar (4) is gone up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202539092U CN201525221U (en) | 2009-11-10 | 2009-11-10 | Anti-skidding compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202539092U CN201525221U (en) | 2009-11-10 | 2009-11-10 | Anti-skidding compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201525221U true CN201525221U (en) | 2010-07-14 |
Family
ID=42516518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202539092U Expired - Fee Related CN201525221U (en) | 2009-11-10 | 2009-11-10 | Anti-skidding compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201525221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284087A (en) * | 2017-07-19 | 2017-10-24 | 郑金风 | A kind of teaching aid compasses |
-
2009
- 2009-11-10 CN CN2009202539092U patent/CN201525221U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284087A (en) * | 2017-07-19 | 2017-10-24 | 郑金风 | A kind of teaching aid compasses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20101110 |