CN211280429U

CN211280429U - Multi-functional teaching aid for mathematical education

Info

Publication number: CN211280429U
Application number: CN201922430946.2U
Authority: CN
Inventors: 艾佳
Original assignee: Shaoxing Technical School
Current assignee: Shaoxing Technical School
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-18
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a multi-functional teaching aid for mathematical education relates to mathematics teaching aid field, including the ring that has the angle scale, the fixed ruler that has the straight line scale and change the chi, the fixed ruler is fixed to be set up on the footpath of ring, change the chi pin joint on the fixed ruler and the centre of a circle that the axle center corresponds the ring, the straight flute has been seted up along its length direction on the fixed ruler, slide fit has the slider on the straight flute, set up the straight line hole that is used for the holding chalk on the slider, it leads to the groove to set up the straight line that is used for drawing the angle line on the chi to change. This teaching aid for multi-functional mathematical education, the runner chi according to the angle scale on the ring and with the cooperation of solid fixed ruler, can be used to the angulation, draw angle line, straight line, pitch arc etc. have had the function of teaching aids such as ruler, set square, protractor simultaneously, convenient to carry uses conveniently.

Description

Multi-functional teaching aid for mathematical education

Technical Field

The utility model relates to a mathematics teaching aid technical field specifically is a multi-functional teaching aid for mathematical education.

Background

The teaching aid is a general term of various appliances used for enabling students to visually and vividly understand teaching contents and appliances used by teachers during teaching. The teaching aid can improve the learning interest of students, enrich the perceptual knowledge, help to form clear concepts and develop the observation ability and thinking ability of the students.

In the practice of mathematics learning, compasses, rulers, set squares, protractors and the like are used almost every day. These various teaching aids not only take up space, carry inconvenient, and the mr also is very inconvenient to use moreover, still can have compasses point or set square closed angle to injure people's accident emergence occasionally.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a teaching aid is used in multi-functional mathematical education has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a teaching aid for multi-functional mathematical education, is including the ring that has the angle scale, the fixed ruler that has the straight line scale and commentaries on classics chi, the fixed ruler is fixed to be set up on the footpath line of ring, change the chi pin joint on the fixed ruler and the axle center corresponds the centre of a circle of ring, the straight flute has been seted up along its length direction on the fixed ruler, sliding fit has the slider on the straight flute, offer the straight line hole that is used for the holding chalk on the slider, it leads to the groove to offer the straight line that is used for drawing the angle line on the commentaries on classics chi.

Preferably, one end of the rotating ruler is hollow and is movably connected with an extension rod, a supporting block is arranged at the end part of the extension rod, and a circle drawing hole for drawing a circle is formed in the supporting block.

Preferably, the extension rod can be respectively connected with the rotary ruler and the circular ring through a fixing mechanism.

Preferably, the fixing mechanism comprises a plurality of positioning holes formed in the extension rod, fixing holes formed in the rotary ruler, and locking holes formed in the ring, the positioning holes are arranged at equal intervals along the length direction of the extension rod, the fixing holes and the locking holes correspond to the positioning holes, and the fixing holes, the locking holes and the positioning holes are connected through fixing bolts.

Preferably, the top of the extension rod is provided with a marking hole along the length direction thereof for inserting chalk.

Preferably, one end of the extension rod, which is positioned in the rotary ruler, is provided with a semicircular groove matched with the linear through groove.

Preferably, the sliding block is provided with a pointer corresponding to the scale.

Preferably, the bottom of the circular ring is provided with a plurality of suckers used for being adsorbed on the blackboard.

(III) advantageous effects

The utility model provides a multi-functional teaching aid for mathematical education. The method has the following beneficial effects:

1. this teaching aid for multi-functional mathematical education, the runner chi according to the angle scale on the ring and with the cooperation of solid fixed ruler, can be used to the angulation, draw angle line, straight line, pitch arc etc. have had the function of teaching aids such as ruler, set square, protractor simultaneously, convenient to carry uses conveniently.

2. This teaching aid for multi-functional mathematical education draws the round hole through setting up to adjust radius length through the extension rod, can draw the accurate circle of drawing different radiuses, make this teaching aid possess the compasses function simultaneously, and do not have spine portion to injure and health.

3. This teaching aid for multi-functional mathematical education sets up the mark hole at the tip of extension rod, can adjust the extension length of extension rod to the longest, then will seal a pen and insert in the mark hole, the mr can be used for the device as the teaching rod use to mark on the blackboard.

Drawings

Fig. 1 is a schematic view of a fixing mechanism of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is an isometric view of the present invention;

fig. 4 is a schematic view of the circle drawing status of the present invention.

In the figure: 1 circular ring, 2 fixed ruler, 3 rotating ruler, 4 fixed mechanism, 41 positioning hole, 42 fixed hole, 43 locking hole, 44 fixed bolt, 5 straight groove, 6 slide block, 7 straight line hole, 8 straight line through groove, 9 extending rod, 10 supporting block, 11 drawing circular hole, 12 marking hole, 13 semi-circular groove, 14 pointer and 15 sucking disc.

Detailed Description

The embodiment of the utility model provides a multi-functional teaching aid for mathematical education, as shown in fig. 1-4, including ring 1 that has the angle scale, the fixed ruler 2 and the commentaries on classics chi 3 that have the straight line scale, the fixed ruler 2 is fixed to be set up on the footpath of ring 1, change 3 pin joints of chi on fixed ruler 2 and the axle center that the axle center corresponds ring 1, straight flute 5 has been seted up along its length direction on the fixed ruler 2, sliding fit has slider 6 on the straight flute 5, offer the straight line hole 7 that is used for the holding chalk on the slider 6, can draw the straight line along straight flute 5 directions after inserting the chalk in straight line hole 7. The slide 6 is provided with a pointer 14 corresponding to the scale. Can slide out of straight lines of different lengths precisely according to the indication of the pointer 14.

The rotating ruler 3 is provided with a straight through groove 8 for drawing an angle line. The angle of the rotary ruler 3 is adjusted according to the scales on the circular ring 1, then a line is drawn in the straight through groove 8, finally the straight line drawn in the straight through groove 8 and the straight line drawn in the straight through groove 5 are prolonged, and the angle line is manufactured.

The rotary ruler 3 is matched with the fixed ruler 2 according to the angle scales on the ring 1, can be used for measuring angles, drawing angle lines, straight lines, arc lines and the like, and simultaneously has the functions of teaching aids such as a straight ruler, a set square, a protractor and the like, and is convenient to carry and use.

The bottom of the ring 1 is provided with a plurality of suckers 15 which are used for being adsorbed on the blackboard. The suction cup 15 is a rubber suction cup, and is a commercially available product. After the ring 1 is adsorbed on the blackboard, the stability of drawing circles and lines can be improved.

The one end of commentaries on classics chi 3 is the cavity form, and swing joint has extension rod 9, and the tip of extension rod 9 is provided with supporting shoe 10, offers the circle hole 11 of drawing that is used for drawing the circle on the supporting shoe 10.

Through setting up drawing round hole 11 to adjust radius length through extension rod 9, can draw the accurate circle of drawing different radiuses, make this teaching aid possess the compasses function simultaneously, and do not have the spine portion to injure and the health.

The extension rod 9 can be respectively connected with the rotary ruler 3 and the ring 1 through the fixing mechanism 4.

The fixing mechanism 4 comprises a plurality of positioning holes 41 formed in the extension rod 9, fixing holes 42 formed in the rotary ruler 3 and locking holes 43 formed in the ring 1, the positioning holes 41 are arranged at equal intervals along the length direction of the extension rod 9, the fixing holes 42 and the locking holes 43 correspond to the positioning holes 41, and the fixing holes 42, the locking holes 43 and the positioning holes 43 are connected through fixing bolts 44.

When used for drawing a circle, the fixing pins 44 are simply screwed into the positioning holes 41 and the fixing holes 42, so that the rotary ruler 3 can still be rotated when drawing a circle. When the teaching stick is used, the fixing bolt 44 is screwed into the positioning hole 41, the fixing hole 42 and the locking hole 43, so that the rotary scale 3 cannot rotate when being used.

The top of the extension rod 9 is provided with a marking hole 12 for inserting chalk along the length direction.

The marking hole 12 is arranged at the end part of the extension rod 9, the extension length of the extension rod 9 can be adjusted to be the longest, then the sealing pen is inserted into the marking hole 12, and a teacher can use the device as a teaching rod and mark on a blackboard.

One end of the extension rod 9 positioned in the rotary ruler 3 is provided with a semicircular groove 13 matched with the straight through groove 8. When the chalk is used for drawing a circle or an arc with the radius smaller than that of the circular ring 1, the distance from the semicircular groove 13 on the extension rod 9 to the center of the circular ring 1 is adjusted, then the chalk is supported in the semicircular groove 13 to draw the circle or the arc, when the chalk is used for drawing the circle, two semicircular arcs on the upper side and the lower side of the fixed ruler 2 are drawn firstly, and then the two semicircular arcs are connected.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multi-functional teaching aid for mathematical education which characterized in that: including ring (1) that has the angle scale, fixed ruler (2) and the commentaries on classics chi (3) that have the straight line scale, fixed ruler (2) are fixed to be set up on the footpath line of ring (1), change chi (3) pin joint on fixed ruler (2) and the centre of a circle of axle center corresponding ring (1), straight flute (5) have been seted up along its length direction on fixed ruler (2), sliding fit has slider (6) on straight flute (5), offer straight line hole (7) that are used for the holding chalk on slider (6), it leads to groove (8) to offer the straight line that is used for drawing the angle line on commentaries on classics chi (3).

2. A multi-functional teaching aid for mathematical education as claimed in claim 1, wherein: one end of the rotary ruler (3) is hollow and is movably connected with an extension rod (9), a supporting block (10) is arranged at the end part of the extension rod (9), and a circle drawing hole (11) for drawing a circle is formed in the supporting block (10).

3. A multi-functional teaching aid for mathematical education as claimed in claim 2, wherein: the extension rod (9) can be respectively connected with the rotary ruler (3) and the circular ring (1) through the fixing mechanism (4).

4. A multi-functional teaching aid for mathematical education as claimed in claim 3, characterized in that: fixing mechanism (4) include a plurality of locating hole (41) of seting up on extension rod (9), set up fixed orifices (42) on commentaries on classics chi (3), set up locking hole (43) on ring (1), locating hole (41) are along the equidistant setting of length direction of extension rod (9), fixed orifices (42) and locking hole (43) all correspond with locating hole (41), fixed orifices (42), locking hole (43), locating hole (41) link to each other through gim peg (44).

5. A multi-functional teaching aid for mathematical education as claimed in claim 4, characterized in that: the top of the extension rod (9) is provided with a marking hole (12) for inserting chalk along the length direction.

6. A multi-functional teaching aid for mathematical education as claimed in claim 2, wherein: one end of the extension rod (9) positioned in the rotary ruler (3) is provided with a semicircular groove (13) matched with the straight through groove (8).

7. A multi-functional teaching aid for mathematical education as claimed in claim 1, wherein: and a pointer (14) corresponding to the scale is arranged on the sliding block (6).

8. A multi-functional teaching aid for mathematical education as claimed in claim 1, wherein: the bottom of the circular ring (1) is provided with a plurality of suckers (15) used for being adsorbed on the blackboard.