CN205439701U

CN205439701U - Teaching ruler

Info

Publication number: CN205439701U
Application number: CN201620138344.3U
Authority: CN
Inventors: 邱雪慈
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-02-24
Filing date: 2016-02-24
Publication date: 2016-08-10
Anticipated expiration: 2026-02-24

Abstract

The utility model relates to a teaching education articles for use provide a teaching ruler, and its structure includes ruler, movable auxiliary scale, the ruler is provided with first scale mark in both sides about openly, is equipped with a rectangular recess in the upper end at the ruler back, still is provided with a movable auxiliary scale in the recess, and positive intermediate position is carved with the orientation triangle, the openly corresponding movable auxiliary scale's of ruler semi -circular position downside is equipped with the angle line, ruler side lower extreme is inlayed and is had rectangular magnet, in needs painting angle degree line, just can take the protractor to remove the measurement angle degree on purpose, only need to access the recess with movable auxiliary scale, the angle line that corresponds the below according to the orientation triangle, transfer to required angle alright the light various angles of drawing up, utilize the magnetism of magnet, on the blackboard during drawing alright adsorb the ruler on having the magnetic blackboard, teacher's physical power expenditure has been alleviateed, and is advantaged by simple operation, the advantage that convenient to use and practicality are strong.

Description

A kind of teaching ruler

Technical field

This utility model relates to a kind of realia apparatus, is specifically related to a kind of teaching ruler.

Background technology

Our primary school math teaching it is frequently necessary on blackboard, draw some triangular forms, straight line and various angle, most are exactly ruler and carry out picture angle with protractor, but some blackboard areas are bigger, teacher also must carry out picture with bigger ruler, teacher needs a hand-held ruler when drawing, one hand-held chalk, that often draws because of ruler displacement is irregular, other schoolmarm's height is the highest, must stand on tiptoe and just can pin ruler, usage amount hornwork is also needed when drawing angle, frequently change the instructional blocks of time that drawing tools waste is valuable, can adsorb on blackboard it is thus desirable to a, draw the ruler of various angle.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of simple in construction, it is easy to location, can quickly draw the ruler of various straight line and angle.

For solving above-mentioned technical problem, this utility model adopts the following technical scheme that

A kind of teaching ruler, its structure includes ruler, dynamic chi, upper and lower both sides, described ruler front are provided with the first graduation mark, a rectangular groove it is provided with in the upper end at the ruler back side, described groove centre position is provided with a rotating pin, a dynamic chi it is additionally provided with in groove, the half of a length of groove length of described dynamic chi, dynamic chi width is equal with recess width, dynamic chi one end is linked together with ruler by rotating pin, it is semicircle below the connection end of dynamic chi, orientation triangle is carved with in position, middle, it is provided with the second graduation mark on described dynamic chi, the front correspondence of described ruler is moved and is provided with angle line on the downside of the semicircle position of chi.

As optimal technical scheme of the present utility model, lower end, described ruler side is inlaid with rectangular Magnet.

It is made up of transparent acrylic material as optimal technical scheme of the present utility model, described ruler and dynamic chi.

The beneficial effects of the utility model are: by being provided with dynamic chi on ruler, needs picture angle line when, protractor just can be specially taken to go to measure angle, only dynamic chi need to be recalled groove, according to the angle line below orientation triangle correspondence, it is adjusted to required angle and just can easily draw various angle, on ruler, additionally it is provided with Magnet, utilize the magnetic of Magnet, ruler absorption just can had on magnetic blackboard during drawing by blackboard, alleviate the muscle power expenditure of teacher, have simple to operate, easy to use and practical advantage.

Accompanying drawing explanation

Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, is not intended that restriction of the present utility model together with embodiment of the present utility model.

In the accompanying drawings:

Fig. 1 is the Facad structure schematic diagram of a kind of teaching ruler of this utility model；

Fig. 2 is the inverse layer structure schematic diagram of a kind of teaching ruler of this utility model；

Label in figure: 1, ruler, 2, Magnet, 3, dynamic chi, 4, rotating pin, 5, orientation triangle, 6, angle line, the 7, first graduation mark, 10, groove, the 11, second graduation mark.

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains this utility model, be not used to limit this utility model.

nullEmbodiment: refer to Fig. 1-2，This utility model one teaching ruler，Its structure includes ruler (1)、Dynamic chi (3)，Upper and lower both sides, described ruler (1) front are provided with the first graduation mark (7)，A rectangular groove (10) it is provided with in the upper end at ruler (1) back side，Described groove (10) centre position is provided with a rotating pin (4)，Groove (10) is inner is additionally provided with a dynamic chi (3)，The half of a length of groove (10) length of described dynamic chi (3)，Dynamic chi (3) width is equal with groove (10) width，Dynamic chi (3) one end is linked together with ruler (1) by rotating pin (4)，It is semicircle below the connection end of dynamic chi (3)，Orientation triangle (5) is carved with in position, middle，It is provided with the second graduation mark (11) on described dynamic chi (3)，The front correspondence of described ruler (1) is moved and is provided with angle line (6) on the downside of the semicircle position of chi (3)，Described ruler (1) lower end, side is inlaid with rectangular Magnet (2)，Described ruler (1) and dynamic chi (3) are made up of transparent acrylic material.

In use, by being provided with dynamic chi (3) on ruler (1), needs picture angle line when, protractor just can be taken to go to measure angle, only dynamic chi (3) need to be recalled groove (10), according to the angle line (6) below orientation triangle (5) correspondence, it is adjusted to required angle and just can easily draw various angle, on ruler (1), additionally it is provided with Magnet (2), utilize the magnetic of Magnet (2), ruler (1) absorption just can had on magnetic blackboard during drawing by blackboard, alleviate the muscle power expenditure of teacher, have simple to operate, easy to use and practical advantage.

Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this utility model, although this utility model being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims

null1. a teaching ruler，Its structure includes ruler (1)、Dynamic chi (3)，It is characterized in that: upper and lower both sides, described ruler (1) front are provided with the first graduation mark (7)，A rectangular groove (10) it is provided with in the upper end at ruler (1) back side，Described groove (10) centre position is provided with a rotating pin (4)，Groove (10) is inner is additionally provided with a dynamic chi (3)，The half of a length of groove (10) length of described dynamic chi (3)，Dynamic chi (3) width is equal with groove (10) width，Dynamic chi (3) one end is linked together with ruler (1) by rotating pin (4)，It is semicircle below the connection end of dynamic chi (3)，Orientation triangle (5) is carved with in position, middle，It is provided with the second graduation mark (11) on described dynamic chi (3)，The front correspondence of described ruler (1) is moved and is provided with angle line (6) on the downside of the semicircle position of chi (3).
A kind of teaching ruler the most according to claim 1, it is characterised in that: described ruler (1) lower end, side is inlaid with rectangular Magnet (2).
A kind of teaching ruler the most according to claim 1, it is characterised in that: described ruler (1) and dynamic chi (3) are made up of transparent acrylic material.