CN208035763U

CN208035763U - A kind of special measuring angle instrument of mathematics

Info

Publication number: CN208035763U
Application number: CN201820504900.3U
Authority: CN
Inventors: 任艳林
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-04-11
Filing date: 2018-04-11
Publication date: 2018-11-02
Anticipated expiration: 2028-04-11

Abstract

The utility model discloses a kind of special measuring angle instruments of mathematics, including iron side angle disk, ruler, connection ruler, rubber strip, figure groove and chalk fixing sleeve, the iron side angle disk centre position is equipped with shaft, ruler and connection ruler are installed in the shaft, the ruler is mounted on connection ruler upper end, the ruler other end is equipped with chalk fixing sleeve, installation offers mounting hole on the right side of the chalk fixing sleeve, rotary buckle is installed on the mounting hole, figure groove is installed, and figure groove number is multiple on the iron side angle disk.The utility model on iron dial by offering circular hole, weight can not only be mitigated, teacher is facilitated to carry, and iron side angle disk service life is long, by being equipped with chalk fixing sleeve, need picture bowlder, chalk can be placed in chalk fixing sleeve and be fixed, directly rotate ruler, it is fast and convenient, it is more practical, it is suitble to be widely popularized and uses.

Description

A kind of special measuring angle instrument of mathematics

Technical field

The utility model is related to a kind of measuring angle instrument, more particularly to a kind of special measuring angle instrument of mathematics.

Background technology

Currently, protractor is a kind of tool in life, even more a kind of learning tool of Mathematics Discipline, protractor are students The basis of angulation, common material are plastics or irony, can draw desired angle as needed, some protractors are semicircle, Existing in ancient times, it is typically all on classroom to be used for side angle degree in mathematics, and teacher is drawn using side angle device on blackboard required Angle consider and examine for student, how proper use of then teach students again, existing side angle device is generally plastic material, although gently Just, but service life is short, and the content of courses of each grade is different, and simple side angle device cannot draw other figures.Therefore, It is proposed that a kind of special measuring angle instrument of mathematics.

Utility model content

The main purpose of the utility model is to provide a kind of special measuring angle instruments of mathematics, can effectively solve background skill The problems in art.

To achieve the above object, the technical solution that the utility model is taken is：

A kind of special measuring angle instrument of mathematics, including iron side angle disk, ruler, connection ruler, rubber strip, figure groove and powder Fixing sleeve, the iron side angle disk centre position are equipped with shaft, and ruler and connection ruler are equipped in the shaft, described straight Ruler is mounted on connection ruler upper end, and the ruler other end is equipped with chalk fixing sleeve, installs and open up on the right side of the chalk fixing sleeve There is mounting hole, rotary buckle is installed on the mounting hole, figure groove, and figure groove are installed on the iron side angle disk Number is multiple, and the shape of multiple figure grooves is different, and circular hole, and circular hole number are offered on the iron side angle disk It is multiple.

Further, the connection ruler is made of section ruler A, section ruler B, section ruler C and junction button, the left and right ends the section ruler B It is separately installed with section ruler A and section ruler C, and section ruler A is connected by junction button with section ruler B, section ruler B with section ruler C.

Further, it is mounted on magnet piece at left and right sides of the iron side angle disk.

Further, the iron side angle disk lower end is equipped with hook circle.

Further, the iron side angle disk surrounding is equipped with scale strip.

Compared with prior art, the utility model has the advantages that：

1. the special measuring angle instrument of the mathematics of the utility model not only may be used by offering circular hole on iron dial To mitigate weight, teacher is facilitated to carry, and iron side angle disk service life is long.

2. the special measuring angle instrument of the mathematics of the utility model needs picture bowlder, can incite somebody to action by being equipped with chalk fixing sleeve Chalk is placed in chalk fixing sleeve and fixes, and directly rotates ruler, fast and convenient.

3. the special measuring angle instrument of the mathematics of the utility model, by being equipped with figure groove on iron side angle disk, often A figure groove is different, in teaching, when needing to draw respective graphical, can directly describe, can save the time of drawing, increase Working efficiency.

Description of the drawings

Fig. 1 is the overall structure diagram of the special measuring angle instrument of the utility model mathematics；

Fig. 2 is the chalk fixing sleeve structural schematic diagram of the special measuring angle instrument of the utility model mathematics.

In figure：1, ruler is connected；2, figure groove；3, shaft；4, rubber belt；5, circular hole；6, magnet piece；7, iron side angle Disk；8, hook circle；9, ruler；10, chalk fixing sleeve；11, section ruler C；12, section ruler A；13, section ruler B；14, junction button；15, fixed Hole；16, rotary buckle；17, scale strip.

Specific implementation mode

To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below In conjunction with specific implementation mode, the utility model is expanded on further.

As shown in Figs. 1-2, the special measuring angle instrument of a kind of mathematics, including iron side angle disk 7, ruler 9, connection ruler 1, rubber Band 4, figure groove 2 and chalk fixing sleeve 10, iron 7 centre position of side angle disk are equipped with shaft 3, pacify in the shaft 3 Equipped with ruler 9 and connection ruler 1, the ruler 9 is mounted on 1 upper end of connection ruler, and 9 other end of the ruler is equipped with chalk fixing sleeve 10,10 right side installation of the chalk fixing sleeve offers mounting hole 15, and rotary buckle 16, the iron are equipped on the mounting hole 15 Figure groove 2 is installed, and 2 numbers of figure groove are multiple on side angle disk 7 processed, the shapes of multiple figure grooves 2 is respectively not It is identical, circular hole 5 is offered on the iron side angle disk 7, and 5 numbers of circular hole are multiple.

Wherein, the connection ruler 1 is made of section ruler A12, section ruler B13, section ruler C11 and junction button 14, and the section ruler B13 is left Right both ends are separately installed with section ruler A12 and section ruler C11, and section ruler A12 and section ruler B13, section ruler B13 and section ruler C11 pass through company Buckle 14 connects, and can draw straight line or the angle of different angle, easy to use.

Wherein, 7 left and right sides of the iron side angle disk is mounted on magnet piece 6, convenient for being adsorbed on blackboard.

Wherein, iron 7 lower end of side angle disk is equipped with hook circle 8 and facilitates iron 7 hung on a wall of side angle disk, and reduction accounts for Ground area.

Wherein, iron 7 surrounding of side angle disk is equipped with scale strip 17, convenient for reading angle.

Operation principle：In use, the books attended class are placed on 4 lower end of rubber belt, after taking classroom to, books are taken Under, iron side angle disk 7 is placed on blackboard, the magnet piece 6 of the left and right sides can be adsorbed on blackboard, to needing the angle of side angle Side angle is carried out, mobile ruler 9 is directed at angle bottom line, then mobile connection ruler 1 is directed at angle upper end lines and can read angle Go out, when drawing straight line, connection ruler 1 is stretched, some common figures can directly compare corresponding figure groove 2 and draw, and need Bowlder is drawn, first chalk is placed in chalk fixing sleeve 10, is fixed with rotary buckle 16, circle can be drawn by directly rotating ruler 9 Shape.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims

1. a kind of special measuring angle instrument of mathematics, including iron side angle disk (7), ruler (9), connection ruler (1), rubber strip (4), figure Connected in star (2) and chalk fixing sleeve (10), it is characterised in that：Iron side angle disk (7) centre position is equipped with shaft (3), Ruler (9) and connection ruler (1) are installed, the ruler (9) is mounted on connection ruler (1) upper end, the ruler on the shaft (3) (9) other end is equipped with chalk fixing sleeve (10), is installed on the right side of the chalk fixing sleeve (10) and offers mounting hole (15), described Rotary buckle (16) is installed on mounting hole (15), figure groove (2), and figure groove are installed on the iron side angle disk (7) (2) number is multiple, and the shape of multiple figure grooves (2) is different, and circular hole is offered on the iron side angle disk (7) (5), and circular hole (5) number is multiple.

2. the special measuring angle instrument of mathematics according to claim 1, it is characterised in that：The connection ruler (1) is by section ruler A (12), section ruler B (13), section ruler C (11) and junction button (14) composition, section ruler B (13) left and right ends are separately installed with section ruler A (12) and section ruler C (11), and section ruler A (12) and section ruler B (13), section ruler B (13) and section ruler C (11) pass through junction button (14) even It connects.

3. the special measuring angle instrument of mathematics according to claim 1, it is characterised in that：Iron side angle disk (7) left and right Both sides are mounted on magnet piece (6).

4. the special measuring angle instrument of mathematics according to claim 1, it is characterised in that：Iron side angle disk (7) lower end Hook circle (8) is installed.

5. the special measuring angle instrument of mathematics according to claim 1, it is characterised in that：Iron side angle disk (7) surrounding Scale strip (17) is installed.