CN201552910U - Multi-purpose teaching aid - Google Patents

Multi-purpose teaching aid Download PDF

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Publication number
CN201552910U
CN201552910U CN2009202583470U CN200920258347U CN201552910U CN 201552910 U CN201552910 U CN 201552910U CN 2009202583470 U CN2009202583470 U CN 2009202583470U CN 200920258347 U CN200920258347 U CN 200920258347U CN 201552910 U CN201552910 U CN 201552910U
Authority
CN
China
Prior art keywords
ruler
teaching aid
radius
straight line
rulers
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
Application number
CN2009202583470U
Other languages
Chinese (zh)
Inventor
王铁成
王运成
Original Assignee
王铁成
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 王铁成 filed Critical 王铁成
Priority to CN2009202583470U priority Critical patent/CN201552910U/en
Application granted granted Critical
Publication of CN201552910U publication Critical patent/CN201552910U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a multi-purpose teaching aid, and relates to teaching aids. the teaching aid is characterized in that the upper end parts of two rulers are movably connected with each other through a shaft; the lower end of each ruler adopts a compass leg; an angle gage is arranged at the upper end of one ruler; straight line meters are arranged on the outer sides of the rulers, and radius meters are arranged on the inner sides thereof, wherein, the straight line meters mean the straight line easy-to-read measurement markings; and the radius meters mean radius easy-to-read measurement markings. The utility model has the advantage that the teaching aid integrates the functions of a ruler, an angle gage and a compass as well as a set square, so that a user can conveniently make vertical lines, measure or draw an angle, and quickly draw a round with prescribed radius, so as to facilitate to improve teaching efficiency.

Description

The multipurpose teaching aid
Technical field:
The utility model relates to teaching aid, particularly collects ruler, protractor, set square, compasses etc. and is the multipurpose teaching aid of one.
Background technology:
Particularly the mathematics teacher is in the process of teaching for the teacher, and the stationery of use such as ruler, set square, protractor and compasses etc. are separate single stationery for a long time always, and structural change is little.But because they are independent separately, thereby when reality is used, often must bring all various stationery simultaneously.Simultaneously the teacher maps on blackboard, uses multiple instrument, troublesome poeration often, and accurate inadequately, wasted many valuable time, be unfavorable for improving efficiency of teaching.
Summary of the invention:
The purpose of this utility model is to provide a kind of multipurpose teaching aid, and it can be realized picture straight line, cross spider, measured angular easily and make multipurpose such as circle according to radius.
The purpose of this utility model realizes by following scheme: the multipurpose teaching aid, it is characterized in that: the upper end of two rulers flexibly connects by axle, the lower end of ruler is a compass foot, a ruler upper end is provided with protractor therein, arranged outside at ruler has the straight line meter, is provided with the radiuscope measuring device in the inboard of ruler.
The utility model also can further be realized by following scheme:
Straight line meter index is annotated in the straight line metering scale in the ruler outside.
Radiuscope measuring device index is annotated the radius metering scale in the ruler inboard; The radius metering scale is a non-uniform scale.
The center of circle of protractor is the hole of installation shaft.
The compass foot one is a pin, and another is the chalk seat.
Can be provided with the set square of hollow out on the ruler, the set square difference of the hollow out on two rulers.
Advantage of the present utility model is: the utility model integrates ruler, protractor and compasses (and set square), can make vertical line easily, certain angle of measuring or draw, and can draw apace and specify the circle of radius, thereby help improving efficiency of teaching.
Description of drawings:
Fig. 1 is the utility model structural representation.
Among the figure, 1 is ruler, and 2 is compass foot, and 3 is protractor, and 4 is axle, and 5 is the protractor index line, and 6 is the straight line metering scale, and 7 is the radius metering scale.
The specific embodiment:
Below in conjunction with embodiment, the utility model is done further narration.
Embodiment 1: as shown in Figure 1, the upper end of two rulers 1 (can be divided into ruler A and ruler B) flexibly connects by axle 4, the lower end of ruler is that (one is a pin to compass foot 2, another is the chalk seat), ruler B upper end is provided with protractor 3, protractor scale on the ruler B is aimed at ruler A and is gone up index line 5, can show the angle α of two rulers; The center of circle of protractor 3 is the hole of installation shaft 4.Because the angle that protractor 3 shows is the staggered angle α of two rulers, therefore, this chi can be used to measure arbitrary angle; In the outside of ruler 1, be provided with straight line metering scale 6 (it is even scale), be used to measure the length of straight line; Be provided with radius metering scale 7 in the inboard of ruler 1, the metering method of radius metering scale 7 is: when two rulers inboard is staggered, its position institute target numerical value is promptly represented the length (it is non-uniform scale, and this needs to mark in the inboard of ruler by measuring in advance) of compasses radius; Thereby can draw circle according to the length of radius easily.

Claims (7)

1. multipurpose teaching aid, it is characterized in that: the upper end of two rulers flexibly connects by axle, and the lower end of ruler is a compass foot, and a ruler upper end is provided with protractor therein, arranged outside at ruler has the straight line meter, is provided with the radiuscope measuring device in the inboard of ruler.
2. multipurpose teaching aid according to claim 1 is characterized in that: straight line meter index is annotated in the straight line metering scale in the ruler outside.
3. multipurpose teaching aid according to claim 1 is characterized in that: radiuscope measuring device index is annotated the radius metering scale in the ruler inboard.
4. multipurpose teaching aid according to claim 1 is characterized in that: the center of circle of protractor is the hole of installation shaft.
5. multipurpose teaching aid according to claim 1 is characterized in that: the compass foot one is a pin, and another is the chalk seat.
6. multipurpose teaching aid according to claim 3 is characterized in that: the radius metering scale is a non-uniform scale.
7. multipurpose teaching aid according to claim 1 is characterized in that: ruler is provided with the set square of hollow out.
CN2009202583470U 2009-11-24 2009-11-24 Multi-purpose teaching aid Expired - Fee Related CN201552910U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202583470U CN201552910U (en) 2009-11-24 2009-11-24 Multi-purpose teaching aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202583470U CN201552910U (en) 2009-11-24 2009-11-24 Multi-purpose teaching aid

Publications (1)

Publication Number Publication Date
CN201552910U true CN201552910U (en) 2010-08-18

Family

ID=42612586

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202583470U Expired - Fee Related CN201552910U (en) 2009-11-24 2009-11-24 Multi-purpose teaching aid

Country Status (1)

Country Link
CN (1) CN201552910U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104085231A (en) * 2014-06-13 2014-10-08 胡健强 Training aid capable of drawing elliptical arc angle line
CN106904029A (en) * 2017-01-25 2017-06-30 东莞产权交易中心 A kind of multifunctional compass
CN110044225A (en) * 2019-04-29 2019-07-23 长沙理工大学 A kind of product design drawing rule

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104085231A (en) * 2014-06-13 2014-10-08 胡健强 Training aid capable of drawing elliptical arc angle line
CN106904029A (en) * 2017-01-25 2017-06-30 东莞产权交易中心 A kind of multifunctional compass
CN110044225A (en) * 2019-04-29 2019-07-23 长沙理工大学 A kind of product design drawing rule

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100818

Termination date: 20111124

C17 Cessation of patent right