CN201721208U - Sucking-disc-type cyclograph - Google Patents
Sucking-disc-type cyclograph Download PDFInfo
- Publication number
- CN201721208U CN201721208U CN2010201976846U CN201020197684U CN201721208U CN 201721208 U CN201721208 U CN 201721208U CN 2010201976846 U CN2010201976846 U CN 2010201976846U CN 201020197684 U CN201020197684 U CN 201020197684U CN 201721208 U CN201721208 U CN 201721208U
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- CN
- China
- Prior art keywords
- sleeve
- rectangular
- sucking
- disc
- cyclograph
- 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)
- Toys (AREA)
Abstract
The utility model relates to a teaching aid, in particular to a sucking-disc-type cyclograph which consists of a sucking disc (1), a graduated scale (2), a screw rod (3), a fastening nut (4), a sleeve (5) and an elastic rubber ring (6). The sucking-disc-type cyclograph is characterized in that the bottom surface of one end of the graduated scale (2) with a rectangular through hole in the middle is rotatably connected with the sucking disc (1), the upper end of the screw rod (3) in the rectangular through hole is in threaded connection with the fastening nut (4), and the lower end thereof is perpendicularly connected with the bottom of the sleeve (5) with outer diameter larger than the width of the rectangular through hole; and the elastic rubber ring (6) with inner diameter smaller than the outer diameter of chalk is arranged on the inner wall of the sleeve (5). The utility model has the advantages that the structure is simple, the use is convenient, the cyclograph is firmly fixed on a blackboard and circles with required diameters can be drawn on the blackboard after the chalk is placed in the sleeve and the graduated scale is turned.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically a kind of sucked type cyclograph of using at the blackboard upper drawing circle.
Background technology
At present, teacher usually uses common compasses when the blackboard upper drawing circle, because that the iron pin on the common compasses leg is fixed on blackboard is insecure, usually skids, misplaces, and is wayward, uses very inconvenient.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of simple in structure, easy and simple to handle, the circular sucked type cyclograph of the rule of drawing on blackboard.
The purpose of this utility model is achieved in that this sucked type cyclograph is made up of sucker, rule, screw rod, clamp nut, sleeve, elastic caoutchouc circle, the rule one bottom face that the centre the is provided with rectangular through holes sucker that is being rotationally connected, screw rod upper end in the rectangular through holes is threaded with clamp nut, and the lower end directly links to each other with the sleeve tube dolly of external diameter greater than the rectangular through holes width; Sleeve lining is provided with the elastic caoutchouc circle of internal diameter less than the chalk external diameter.
During use, insert chalk in the sleeve and, after adjusting as requested and fixing the position of sleeve, sucker is adsorbed on the blackboard, hold screw rod and rotate the rule satisfactory circle of can drawing by the flexible fastening of elastic caoutchouc circle.
Advantage of the present utility model: simple in structure, easy to use, cyclograph is fixation on blackboard, places chalk in the sleeve back to rotate rule and can draw on blackboard and meet the circle of diameter requirement.
Description of drawings
Accompanying drawing is a structure cutaway view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail: this sucked type cyclograph is made up of sucker 1, rule 2, screw rod 3, clamp nut 4, sleeve 5, elastic caoutchouc circle 6, the rule 2 one bottom faces that the centre the is provided with rectangular through holes sucker 1 that is being rotationally connected, screw rod 3 upper ends in the rectangular through holes are threaded with clamp nut 4, and the lower end directly links to each other with external diameter 5 dollies of sleeve greater than the rectangular through holes width; Sleeve 5 inwalls are provided with the elastic caoutchouc circle 6 of internal diameter less than the chalk external diameter.
Claims (1)
1. sucked type cyclograph, form by sucker (1), rule (2), screw rod (3), clamp nut (4), sleeve (5), elastic caoutchouc circle (6), rule (2) the one bottom faces that are provided with rectangular through holes in the middle of the it is characterized in that sucker (1) that is being rotationally connected, screw rod (3) upper end in the rectangular through holes is threaded with clamp nut (4), and the lower end directly links to each other with sleeve (5) the tube dolly of external diameter greater than the rectangular through holes width; Sleeve (5) inwall is provided with the elastic caoutchouc circle (6) of internal diameter less than the chalk external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201976846U CN201721208U (en) | 2010-05-21 | 2010-05-21 | Sucking-disc-type cyclograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201976846U CN201721208U (en) | 2010-05-21 | 2010-05-21 | Sucking-disc-type cyclograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201721208U true CN201721208U (en) | 2011-01-26 |
Family
ID=43489502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201976846U Expired - Fee Related CN201721208U (en) | 2010-05-21 | 2010-05-21 | Sucking-disc-type cyclograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201721208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147208A (en) * | 2021-04-08 | 2021-07-23 | 宁天阳 | Printing ink printing equipment |
-
2010
- 2010-05-21 CN CN2010201976846U patent/CN201721208U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147208A (en) * | 2021-04-08 | 2021-07-23 | 宁天阳 | Printing ink printing equipment |
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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: 20110126 Termination date: 20110521 |