# CN202935034U - Movable ruler used in mathematics - Google Patents

## Info

Publication number
CN202935034U
CN202935034U CN 201220646705 CN201220646705U CN202935034U CN 202935034 U CN202935034 U CN 202935034U CN 201220646705 CN201220646705 CN 201220646705 CN 201220646705 U CN201220646705 U CN 201220646705U CN 202935034 U CN202935034 U CN 202935034U
Authority
CN
China
Prior art keywords
mathematics
ruler used
handle
movable ruler
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
CN 201220646705
Other languages
Chinese (zh)
Inventor

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN 201220646705 priority Critical patent/CN202935034U/en
Application granted granted Critical
Publication of CN202935034U publication Critical patent/CN202935034U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

## Landscapes

• Drawing Aids And Blackboards (AREA)

## Abstract

The utility model relates to a movable ruler used in mathematics, and belongs to a mathematics teaching appliance. The movable ruler used in mathematics is composed of two paralleled rulers and the two rulers are connected in a movable mode through a vertical shaft. The ruler used in mathematics is characterized in that a handle is mounted on the vertical shaft, an angle scale is mounted at a joint of the vertical shaft and the handle, sliding grooves are formed in the paralleled rulers, and chalk covers are arranged on the sliding grooves. The movable ruler used in mathematics has the advantages of being simple in design, convenient to use and carry, and capable of drawing lines, circles, and triangles with different angles.

## Description

A kind of mathematical activity chi
Technical field
The utility model relates to the teaching apparatus for mathematics field, relates in particular to a kind of mathematical activity chi.
Background technology
In the mathematical education process, usually need to setting-out on blackboard, draw circle or draw the figures of different angles, in order to satisfy the demand of teaching, before class teacher need to prepare more teaching aid, has caused the inconvenience of using and carrying, the patent No. 200920008753.1, although be also to be aided with a small amount of accessory by two chis arranged side by side to produce multinomial instructional function, this utility model complex structure, and the picture bowlder can not change size, and there is no handle, inconvenient operation.
Summary of the invention
The utility model provides a kind of mathematical activity chi for the prior art deficiency.
The technical solution of the utility model is: a kind of mathematical activity chi, be flexibly connected by vertical pivot by two chis arranged side by side, wherein mounting handle on described vertical pivot, be equipped with angle scale at vertical pivot and handle junction, being provided with chute on chi side by side, chalk sleeve is installed on chute.
The utlity model has following advantage: simplicity of design, use, easy to carry, but setting-out, draw circle, also can draw the triangle of different angles.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is made the following instructions.
As shown in Figure 1, a kind of mathematical activity chi is flexibly connected by vertical pivot 2 by two chis arranged side by side 1, and mounting handle 4 on described vertical pivot 2 wherein is equipped with angle scale 3 at vertical pivot 2 and handle 4 junctions, is being provided with chute 5 on chi 1 side by side, and chalk sleeve 6 is installed on chute 5.

## Claims (1)

1. a mathematical activity chi, be flexibly connected by vertical pivot by two chis arranged side by side, it is characterized in that: mounting handle on described vertical pivot, at vertical pivot and handle junction, angle scale is installed, and being provided with chute on chi side by side, chalk sleeve is installed on chute.
CN 201220646705 2012-11-30 2012-11-30 Movable ruler used in mathematics Expired - Fee Related CN202935034U (en)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220646705 CN202935034U (en) 2012-11-30 2012-11-30 Movable ruler used in mathematics

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220646705 CN202935034U (en) 2012-11-30 2012-11-30 Movable ruler used in mathematics

## Publications (1)

Publication Number Publication Date
CN202935034U true CN202935034U (en) 2013-05-15

# Family

## Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220646705 Expired - Fee Related CN202935034U (en) 2012-11-30 2012-11-30 Movable ruler used in mathematics

## Country Status (1)

CN (1) CN202935034U (en)

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105904885A (en) * 2016-05-22 2016-08-31 湖南城市学院 Teaching ruler for mathematics

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105904885A (en) * 2016-05-22 2016-08-31 湖南城市学院 Teaching ruler for mathematics

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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: 20130515

Termination date: 20131130