CN214112103U

CN214112103U - Novel multi-purpose mathematics teaching aid chi

Info

Publication number: CN214112103U
Application number: CN202120115068.XU
Authority: CN
Inventors: 宦杏初
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-16
Filing date: 2021-01-16
Publication date: 2021-09-03
Anticipated expiration: 2031-01-16

Abstract

The utility model discloses a novel multi-purpose mathematics teaching aid chi, including the set square, the center of set square runs through and is equipped with big circular slot, the inner wall fixedly connected with ring in big circular slot, the ring rotates and is connected with interior plectane, it is equipped with the cross slot to run through on the interior plectane, the center of cross slot is central groove, the upper and lower end of cross slot runs through respectively and is equipped with a plurality of first circular slots and a plurality of second circular slot, it is equipped with three fixed subsides hole site to run through on the set square, the upper end of set square runs through and is equipped with two parabolic troughs, the one end of set square runs through and is equipped with a plurality of round holes, be equipped with three stop gear on the set square. The utility model discloses, it is rational in infrastructure, at the required linear scale of drawing in-process, the scale, the symmetry axis chi, the set square, the compasses, all functions such as protractor collect in a chi, powerful, and be convenient for place the set square and not influence the scale.

Description

Novel multi-purpose mathematics teaching aid chi

Technical Field

The utility model relates to a teaching aid technical field especially relates to a novel multi-purpose mathematics teaching aid chi.

Background

The traditional teaching has the following obvious defects that the teaching is only limited to set squares with a plurality of common angles; drawing uses compasses to damage the book blackboard with a fixed point center; the protractor and the ruler are difficult to use in a split mode, and polygonal, hyperbolic and parabolic frameworks are limited to large and small cavities, so that the drawing procedure in a teaching book is broken away.

In order to solve the defects, a teaching aid with powerful function and high flexibility is needed to be designed, and then when the teaching aid is used for rest in a class room or is suspended, the teaching aid is generally directly placed on a desk, the teaching aid can be touched by mistake frequently, scales are abraded no matter the teaching aid is placed in a positive and negative mode, and therefore a novel multipurpose mathematics teaching aid ruler is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the novel multi-purpose mathematics teaching aid chi of proposing, its required sharp chi in the drawing process, scale, symmetry axis chi, set square, compasses, all functions such as protractor collect in a chi, powerful, and be convenient for place the set square and not influence the scale.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel multi-purpose mathematics teaching aid chi, includes the set square, the center of set square runs through and is equipped with the big circular slot, the inner wall fixedly connected with ring in big circular slot, the ring rotates and is connected with interior plectane, it is equipped with the cross slot to run through on the interior plectane, the center of cross slot is central groove, the upper and lower end of cross slot runs through respectively and is equipped with a plurality of first circular slots and a plurality of second circular slot, it is equipped with three fixed hole site of pasting to run through on the set square, the upper end of set square runs through and is equipped with two parabolic troughs, the one end of set square runs through and is equipped with a plurality of round holes, be equipped with three stop gear on the set square.

Preferably, three sides of the triangular ruler are respectively marked with a first scale, a second scale and a third scale, and the minimum distances among the first scale, the second scale and the third scale are sequentially increased.

Preferably, an elliptical groove and a hyperbolic groove are respectively arranged at two ends of the triangular ruler in a penetrating manner.

Preferably, a fourth scale is engraved on the surface of the large circular groove, and the fourth scale is arranged in degrees.

Preferably, four mounting holes are arranged on the inner circular plate in a penetrating manner.

Preferably, stop gear include with set square fixed surface's hollow circle piece, run through and sliding connection has the sliding block on the hollow circle piece, the upper end fixedly connected with round bar of sliding block, the upper end fixedly connected with circle piece of round bar, fixedly connected with spring between sliding block and the hollow circle piece.

Compared with the prior art, the utility model, its beneficial effect does:

1. when the pen is used, the straight line ruler, the scale ruler and the first scale, the second scale and the third scale are used, the pen point is inserted into different grooves, circles with different radiuses can be obtained, any polygon can be drawn through the matching of the inner circular plate and the fourth scale mark, and the pen is powerful in function.

2. When the use of suspending when not fixed with the blackboard, can be with the back of set square towards the desktop, three circular block of desktop compression, three circular block compression three spring and carry on spacingly to the set square, can prevent to miss often and bump the scale mark and cause the fuzziness of scale mark.

In conclusion, all functions of the linear ruler, the scale ruler, the symmetric axis ruler, the set square ruler, the compasses, the protractor and the like required in the drawing process are integrated into one ruler, so that the drawing ruler is powerful in function, and the set square is convenient to place without affecting the scales.

Drawings

Fig. 1 is a schematic structural view of a novel multipurpose mathematics teaching aid ruler provided by the utility model;

fig. 2 is the front view of the hollow round block in the novel multipurpose mathematics teaching aid ruler provided by the utility model.

In the figure: the multifunctional ruler comprises a set square 1, a set pasting hole position 2, a parabolic groove 3, a fourth scale 4, an inner circular plate 5, a transverse groove 6, a first circular groove 7, a second circular groove 8, a mounting hole 9, a circular ring 10, a hollow circular block 11, a circular block 12, a spring 13 and a sliding block 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a novel multipurpose mathematics teaching aid ruler comprises a triangular ruler 1, wherein three sides of the triangular ruler 1 are respectively marked with a first scale, a second scale and a third scale, the minimum distance between the first scale, the second scale and the third scale is sequentially increased, the proportion between the first scale, the second scale and the third scale and an actual object is respectively 1:1, 1:2 and 1:5, two ends of the triangular ruler 1 are respectively provided with an elliptical groove and a hyperbolic groove in a penetrating manner, the center of the triangular ruler 1 is provided with a large circular groove in a penetrating manner, the surface of the large circular groove is marked with a fourth scale 4, the fourth scale 4 is arranged in a 180-degree manner, the inner wall of the large circular groove is fixedly connected with a circular ring 10, the circular ring 10 is rotatably connected with an inner circular plate 5, a plurality of rolling balls are rotatably connected between the circular ring 10 and the inner circular plate 5, and the inner circular plate 5 can rotate in 360 degrees.

Run through on the interior plectane 5 and be equipped with horizontal groove 6, the center of horizontal groove 6 is central groove, and the upper and lower end of horizontal groove 6 runs through respectively and is equipped with a plurality of first circular slots 7 and a plurality of second circular slots 8, runs through on the interior plectane 5 and is equipped with four mounting holes 9, and four mounting holes 9 are used for the installation to inhale and paste blackboard parts, run through on the set square 1 and are equipped with three fixed subsides hole site 2 for the device is fixed pastes, is used for fixing set square 1 and blackboard.

The upper end of set square 1 runs through and is equipped with two parabolic grooves 3, the one end of set square 1 runs through and is equipped with a plurality of round holes, be equipped with three stop gear on the set square 1, stop gear include with set square 1 fixed surface's hollow circle piece 11, run through and sliding connection has sliding block 14 on the hollow circle piece 11, sliding block 14's upper end fixedly connected with round bar, the upper end fixedly connected with circle piece 12 of round bar, fixedly connected with spring 13 between sliding block 14 and the hollow circle piece 11, three spring 13 cushions three circle piece 12.

In the utility model, when in use, the linear scale, the proportional scale are used according to the first scale, the second scale and the third scale edge; setting the direction of the middle groove to the left and the right by using a symmetry axis ruler; when drawing a circle, inserting pen points into the first circular grooves 7 or the second circular grooves 8, pressing the triangular ruler 1 and keeping the triangular ruler immovable, and rotating the inner circular plate 5; the central point of the inner circular plate 5 is taken as zero of the central groove, the inner circular plate is moved to the left and the right to form a symmetrical scale, a line drawn by the transverse groove 6 can be taken as a bottom edge line, the obtained line segment is moved to the full ruler to enable the zero point to be superposed on any tip of the line end, the inner circular plate 5 is rotated by pressing the triangular ruler 1 to enable the central groove of the transverse groove 6 to align with the fourth scale 4, then the line is drawn in the transverse groove 6 to form an angle line, and the like, polygonal figures of any angle can be drawn, meanwhile, parabolas can be drawn through the two parabola grooves 3, ellipses can be drawn through the elliptic grooves, and hyperbola grooves can be drawn as hyperbolas.

When not fixed with the blackboard when the pause is used, can be with the back of set square 1 towards the desktop, three circular block 12 of desktop compression, three circular block 12 compression three spring 13 and carry on spacingly to set square 1, can prevent to bump the scale mark by mistake often and cause the fuzziness of scale mark.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel multi-purpose mathematics teaching aid chi, includes set square (1), its characterized in that, the center of set square (1) is run through and is equipped with the great circle groove, the inner wall fixedly connected with ring (10) of great circle groove, ring (10) rotate and are connected with interior plectane (5), it is equipped with cross slot (6) to run through on interior plectane (5), the center of cross slot (6) is central groove, the upper and lower end of cross slot (6) is run through respectively and is equipped with a plurality of first circular slots (7) and a plurality of second circular slots (8), it is equipped with three fixed subsides hole site (2) to run through on set square (1), the upper end of set square (1) is run through and is equipped with two parabolic grooves (3), the one end of set square (1) is run through and is equipped with a plurality of round holes, be equipped with three stop gear on set square (1).

2. The novel multipurpose mathematics teaching aid ruler according to claim 1, characterized in that three sides of said triangular ruler (1) are respectively marked with a first scale, a second scale and a third scale, and the minimum distance between said first scale, second scale and third scale increases in turn.

3. The novel multipurpose mathematics teaching ruler according to claim 1, characterized in that the two ends of said set square (1) are respectively provided with an elliptical groove and a hyperbolic groove.

4. The novel multipurpose mathematics teaching aid ruler according to claim 1, characterized in that the surface of said big circular groove is carved with a fourth scale (4), said fourth scale (4) is set at 180 degrees.

5. The novel multipurpose mathematics teaching aid ruler according to claim 1, characterized in that said inner circular plate (5) is provided with four mounting holes (9) therethrough.

6. The novel multipurpose mathematics teaching aid ruler according to claim 1, characterized in that said limiting mechanism comprises a hollow round block (11) fixed on the surface of the triangular ruler (1), a sliding block (14) is penetrated and slidably connected on the hollow round block (11), a round rod is fixedly connected on the upper end of the sliding block (14), a round block (12) is fixedly connected on the upper end of the round rod, and a spring (13) is fixedly connected between the sliding block (14) and the hollow round block (11).