CN2215415Y - Rolling type multi-function set square for teaching - Google Patents
Rolling type multi-function set square for teaching Download PDFInfo
- Publication number
- CN2215415Y CN2215415Y CN 94230867 CN94230867U CN2215415Y CN 2215415 Y CN2215415 Y CN 2215415Y CN 94230867 CN94230867 CN 94230867 CN 94230867 U CN94230867 U CN 94230867U CN 2215415 Y CN2215415 Y CN 2215415Y
- Authority
- CN
- China
- Prior art keywords
- set square
- roller
- teaching
- base
- utility
- 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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- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a rolling multifunctional set square for teaching. The utility model is composed of a set square, a protractor and a rolling wheel with graduation. Various angle lines, circles with different diameters and parallels with equidistance or non-equidistance can be drawn easily when the rolling multifunctional set square is used for teaching. The utility model is a convenient and practical teaching aid.
Description
The utility model relates to teaching set square, particularly a kind of roller multifunction teaching set square.
Math teacher often uses set square and other instruments to make various figure lines on blackboard when last mathematics class, when needs draw parallel lines or during angle line, be used just and can finish with multiple instrument, makes troubles to teaching, has taken the valuable class period.
Of the present utility model day the mathematics set square that just provides a kind of conveniently moving and serve many purposes.
The utility model adopts following technical scheme to realize: at the middle part on two isosceles limits of an isoceles triangle plate and the middle part on base a trundle is housed respectively, is convenient to move and draw parallel lines.The axial line that is located at two rollers on the isosceles limit parallels with the roller shaft on the base of set square, circumferential surface at trundle is shaped on graduation mark, the upper right corner at set square is provided with protractor, is furnished with movable pointer, on the base of set square, also be shaped on graduation mark, and have several through holes equidistantly, be used for the location and draw.
Advantage of the present utility model has: draw equidistantly or can not finish without other instrument during equidistant parallel line, and promote free and relaxedly, also have the picture angle line, functions such as the circle of different-diameter and measuring angle.
Further describe the utility model below in conjunction with accompanying drawing.
Accompanying drawing 1 is a set square roller installation diagram.
Accompanying drawing 2 is set square plane structure charts.
Isoceles triangle plate ［ 2 ］ adopts plastics to make, be shaped on scale and equidistant through hole ［ 3 ］ on the base, be provided with trundle ［ 4 ］ ［ 7 ］ ［ 8 ］ at the middle part on isosceles limit and the middle part on base, the central axis of two trundles on the isosceles limit parallels with the base roller shaft of set square, on the circumferential surface of roller ［ 4 ］, be shaped on scale, protractor ［ 5 ］ and rotating pointer ［ 6 ］ are located at the upper right corner of set square, one end of handle ［ 1 ］ is fixed on the base, and its other end is fixed on the intersection on isosceles limit.The installation site of three trundles is installed and is convenient to observe roller and moves the scale except that roller ［ 4 ］ protrudes the set square surface, and roller ［ 7 ］ ［ 8 ］ is installed in the bottom surface endoporus on set square isosceles limit, cannot see roller ［ 7 ］ ［ 8 ］ on the surface of set square.
Claims (3)
1, a kind of roller multifunction teaching set square, form by isoceles triangle plate and handle, it is characterized in that: on the two isosceles limits of isoceles triangle plate [2] and the middle part on base a trundle [4] [7] [8] is housed respectively, is provided with protractor [5] in the upper right corner of isoceles triangle plate and is furnished with rotating pointer [6].
2, a kind of roller multifunctional mathmatical set square according to claim 1, it is characterized in that: the circumferential surface at roller ［ 4 ］ is shaped on graduation mark, roller ［ 4 ］ projection is installed on the set square surface, be convenient to observe scale, roller ［ 7 ］ ［ 8 ］ is installed in the bottom surface endoporus on isosceles limit, cannot see roller ［ 7 ］ ［ 8 ］ on the surface of set square, the turning cylinder of roller ［ 7 ］ ［ 8 ］ parallels with the turning cylinder of base roller ［ 4 ］.
3, a kind of roller multifunction teaching set square according to claim 1 is characterized in that: be shaped on equidistant through hole ［ 3 ］ on the base of set square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230867 CN2215415Y (en) | 1994-11-23 | 1994-11-23 | Rolling type multi-function set square for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230867 CN2215415Y (en) | 1994-11-23 | 1994-11-23 | Rolling type multi-function set square for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2215415Y true CN2215415Y (en) | 1995-12-20 |
Family
ID=33842868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94230867 Expired - Fee Related CN2215415Y (en) | 1994-11-23 | 1994-11-23 | Rolling type multi-function set square for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2215415Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350912A (en) * | 2011-09-13 | 2012-02-15 | 费学斌 | Wear-resistant triangle |
| CN105599504A (en) * | 2016-03-03 | 2016-05-25 | 付俊 | Set square with rolling rod |
-
1994
- 1994-11-23 CN CN 94230867 patent/CN2215415Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350912A (en) * | 2011-09-13 | 2012-02-15 | 费学斌 | Wear-resistant triangle |
| CN105599504A (en) * | 2016-03-03 | 2016-05-25 | 付俊 | Set square with rolling rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |