CN102529524A - Improved compasses - Google Patents
Improved compasses Download PDFInfo
- Publication number
- CN102529524A CN102529524A CN2010105801506A CN201010580150A CN102529524A CN 102529524 A CN102529524 A CN 102529524A CN 2010105801506 A CN2010105801506 A CN 2010105801506A CN 201010580150 A CN201010580150 A CN 201010580150A CN 102529524 A CN102529524 A CN 102529524A
- Authority
- CN
- China
- Prior art keywords
- pencil
- bull stick
- compasses
- base
- disk
- 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.)
- Pending
Links
Images
Landscapes
- Toys (AREA)
Abstract
The invention relates to a study article, in particular to a pair of improved compasses. The pair of improved compasses comprises a base, a rotation rod and a pencil, and is characterized in that: a disk with scale is fixed on the base; a center shaft is mounted at the middle of the disk; a press handle is arranged at the upper end of the center shaft; the middle of the center shaft is movably connected with the rotation rod with scale; the rotation rod is provided with the pencil capable of moving back and forth; and a block button is arranged at the tail end of the rotation rod. The pair of improved compasses provided by the invention has a simple structure, is convenient and practical, and can accurately draw circles with different radiuses or arcs with different radians according to the study needs, thereby being quick and simple.
Description
(1) technical field
The present invention relates to a kind of study article, particularly a kind of improvement compasses.
(2) background technology
Compasses all are indispensable study articles on mathematics class or geometry class; But existing compasses function is all more single; Decide the bowlder of radius when needing divider calipers; Must could draw circle with the length that ruler measures regulation, the circular arc of the regulation radian that can not draw as required, these are all made troubles to learning life.
(3) summary of the invention
The present invention provides a kind of improvement compasses that can accurately draw circle or circular arc in order to remedy the deficiency of prior art.
The present invention realizes through following technical scheme:
A kind of improvement compasses; Comprise base, bull stick and pencil, its special character is: be fixed with the disk of a band scale on the said base, the disk middle part is equipped with a central shaft; The central shaft upper end is provided with a handle; The central shaft middle part is connected with the bull stick of a band scale, and the pencil of activity back and forth is installed on the bull stick, and the bull stick end is provided with a catch button.
Said pencil is provided with a buckle, and pencil fixes through buckle and bull stick.
Said base lower end is provided with a locking pin.
Therefore, the invention has the beneficial effects as follows: these improvement compasses, simple in structure, convenient and practical, can fast save trouble again according to study needs accurately the draw circle of different radii or the circular arc of different radians.
(4) description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 looks sketch map for master of the present invention;
Fig. 2 is a schematic top plan view of the present invention.
Among the figure, 1 base, 2 disks, 3 central shafts, 4 handles, 5 bull sticks, 6 pencils, 7 buckles, 8 catch buttons, 9 locking pins.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises base 1, bull stick 5 and pencil 6, is fixed with the disk 2 of a band scale on the base 1, and disk 2 middle parts are equipped with a central shaft 3; Central shaft 3 upper ends are provided with a handle 4, and central shaft 3 middle parts are connected with the bull stick 5 of a band scale, and the pencil 6 of activity back and forth is installed on the bull stick 5; Bull stick 5 ends are provided with catch button 8; Pencil 6 is provided with a buckle 7, and pencil 6 fixes through buckle 7 and bull stick 5, and base 1 lower end is provided with a locking pin 9.
Adopt improvement compasses of the present invention, with locking pin 9 be fixed on the paper that will draw, according to the radius of concrete needs; Be moved to bull stick 5 corresponding scale value places to pencil 6; The buckle 7 that closes is fixing with pencil 6, and left hand is pinned handle 4, and the right hand rotates bull stick 5 and draws round getting final product; When drawing the circular arc of certain radian if desired, rotate bull stick 5 according to the scale of disk 2 and get final product to suitable radian.Therefore, the invention has the beneficial effects as follows: these improvement compasses, simple in structure, convenient and practical, can fast save trouble again according to study needs accurately the draw circle of different radii or the circular arc of different radians.
Claims (3)
1. improve compasses for one kind; Comprise base (1), bull stick (5) and pencil (6), it is characterized in that: be fixed with the disk (2) of a band scale on the said base (1), disk (2) middle part is equipped with a central shaft (3); Central shaft (3) upper end is provided with a handle (4); Central shaft (3) middle part is connected with the bull stick (5) of a band scale, and the pencil (6) of activity back and forth is installed on the bull stick (5), and bull stick (5) end is provided with a catch button (8).
2. improvement compasses according to claim 1 is characterized in that: said pencil (6) is provided with a buckle (7), and pencil (6) fixes through buckle (7) and bull stick (5).
3. improvement compasses according to claim 1 is characterized in that: said base (1) lower end is provided with a locking pin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105801506A CN102529524A (en) | 2010-12-09 | 2010-12-09 | Improved compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105801506A CN102529524A (en) | 2010-12-09 | 2010-12-09 | Improved compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102529524A true CN102529524A (en) | 2012-07-04 |
Family
ID=46338024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105801506A Pending CN102529524A (en) | 2010-12-09 | 2010-12-09 | Improved compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102529524A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264597A (en) * | 2013-06-01 | 2013-08-28 | 南昌大学 | Compasses convenient to use |
| CN104163064A (en) * | 2014-06-12 | 2014-11-26 | 刘娟 | Constant angle sizing compass |
-
2010
- 2010-12-09 CN CN2010105801506A patent/CN102529524A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264597A (en) * | 2013-06-01 | 2013-08-28 | 南昌大学 | Compasses convenient to use |
| CN104163064A (en) * | 2014-06-12 | 2014-11-26 | 刘娟 | Constant angle sizing compass |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102529524A (en) | Improved compasses | |
| CN201922774U (en) | Improved compasses | |
| CN202389046U (en) | Novel compasses | |
| CN102431362A (en) | Plotting device capable of quickly drawing cycloids, circles, arcs, angles and regular polygons at one stroke | |
| CN201105584Y (en) | Novel multifunctional ruler set | |
| CN201077280Y (en) | Ruler for schoolchild | |
| CN203293760U (en) | Pen capable of drawing straight lines and angles | |
| CN201833758U (en) | Compass with ruler | |
| CN202242586U (en) | Multifunctional ruler | |
| CN203185934U (en) | Multi-functional compasses | |
| CN202088745U (en) | Multifunctional compass | |
| CN202115197U (en) | Multi-functional surveying and mapping instrument | |
| CN203246224U (en) | Combined compasses | |
| CN202541123U (en) | Multifunctional compasses | |
| CN202896043U (en) | Pen with compass | |
| CN204526541U (en) | A kind of mathematic compasses chi of imparting knowledge to students | |
| CN202826859U (en) | Novel ruler | |
| CN203920163U (en) | Multi-functional Dotted line pen | |
| CN202439425U (en) | Compasses ruler | |
| CN201155960Y (en) | Circular hole interior diameter measuring apparatus | |
| CN201970711U (en) | Novel compass ruler | |
| CN209503238U (en) | Dual-wavelength laser marking machine | |
| CN202498909U (en) | Multifunctional ruler with folding scissors | |
| CN201021023Y (en) | Compasses ruler | |
| CN202866418U (en) | Multifunctional key |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |