CN211335326U

CN211335326U - Ruler for primary school mathematics teaching

Info

Publication number: CN211335326U
Application number: CN201921073044.1U
Authority: CN
Inventors: 刘诗泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-08-25
Anticipated expiration: 2029-07-10

Abstract

The utility model relates to a teaching equipment technical field especially relates to a ruler for primary school's mathematics teaching. The utility model comprises a first measuring scale, a second measuring scale, a third measuring scale and a sealing device, wherein the first measuring scale is connected with the second measuring scale through a first connecting device, and the second measuring scale is connected with the third measuring scale through a second connecting device; the first connecting device is also connected with a compasses drawing device, the second connecting device is also connected with a protractor and an angle measurement drawing device, and the first measuring scale is connected with the third measuring scale through a sealing device; the first connecting device and the second connecting device are rotatable fixing clips and devices. The utility model discloses not only synthesize ruler, compasses, set-square, protractor and protractor as an organic whole, can also adsorb on the magnetism blackboard, not only conveniently carry, the function is abundant, easy operation moreover, easy-to-handle.

Description

Ruler for primary school mathematics teaching

Technical Field

The utility model relates to a teaching equipment technical field especially relates to a ruler for primary school's mathematics teaching.

Background

In primary school's mathematical education, there are the study content of a lot of geometric figure, and the mr needs to draw the geometric figure hand on the blackboard and show to the student, helps the student to understand, and then improves the teaching effect.

The hand drawing needs a plurality of drawing tools to draw the standard, the carrying of the plurality of drawing tools is inconvenient for a mathematic teacher, the mathematic teacher chooses to visually draw the hand drawing for further improving the classroom efficiency in many times, the visual inspection of the hand drawing not only influences the tidiness of the blackboard writing, but also brings difficulty for students to understand in many times; in addition, when the geometric patterns are drawn by hands, a teacher needs to fix a drawing tool with one hand and draw a picture with the other hand, which is very inconvenient.

Therefore, a ruler for primary mathematics teaching is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a ruler for primary school mathematics teaching.

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

a ruler for primary school mathematics teaching comprises a first measuring ruler, a second measuring ruler, a third measuring ruler and a sealing device, wherein the first measuring ruler is connected with the second measuring ruler through a first connecting device, and the second measuring ruler is connected with the third measuring ruler through a second connecting device; the first connecting device is further connected with a compass drawing device, the second connecting device is further connected with a protractor and an angle measurement drawing device, and the first measuring scale is connected with the third measuring scale through the sealing device; the first connecting device and the second connecting device are rotatable fixing clamps and devices.

Further, first dipperstick, second dipperstick and third dipperstick length is the same, first dipperstick, second dipperstick and third dipperstick pass through the closing means splices into confined equilateral triangle, wherein the closing means includes first fixed interface and second fixed interface.

Further, a compass drawing and measuring device is arranged between the compass drawing device and the first measuring scale.

Further, one side of the first measuring scale, which is not connected with the second measuring scale, is also provided with a magnetic fixing device.

Further, first dipperstick, second dipperstick and the third dipperstick openly all is equipped with even scale.

Furthermore, a first magnetic anti-skid pad is arranged opposite to the scale surface of the first measuring scale, a second magnetic anti-skid pad is arranged opposite to the scale surface of the second measuring scale, and a third magnetic anti-skid pad is arranged opposite to the scale surface of the third measuring scale.

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

1. the ruler for primary school mathematics teaching integrates the straight ruler, the compasses, the set square, the protractor and the protractor into a whole, is convenient to carry, has rich functions, is simple to operate, is easy to master and has strong practicability;

2. this chi for primary school's mathematics teaching sets up the magnetism slipmat at first dipperstick, second dipperstick and third dipperstick reverse side, can adsorb this chi for primary school's mathematics teaching on the magnetism blackboard when drawing to set up the slipmat and can further increase frictional force, guaranteed when drawing that this chi for primary school's mathematics teaching fixes the stability at the blackboard with the chi.

Drawings

Fig. 1 is a schematic structural view of a ruler for primary school mathematics teaching according to the present invention in an unfolded state;

FIG. 2 is a schematic view of the structure of the closure device;

fig. 3 is a schematic structural view of a triangle plate state of a ruler for primary school mathematics teaching according to the present invention;

fig. 4 is a schematic side structure view of the first measuring tape.

In the figure: 1 first dipperstick, 2 second dipperstick, 3 third dipperstick, 4 second connecting device, 5 first connecting device, 6 protractors, 7 angle measurement draw device, 8 compasses drawing device, 9 compasses drawing measuring device, 10 closing device, 101 first magnetism slipmat, 102 magnetism fixing device, 201 second magnetism slipmat, 301 third magnetism slipmat, 1001 first fixed interface, 1002 second fixed interface.

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. 1-3, a ruler for primary school mathematics teaching comprises a first measuring ruler 1, a second measuring ruler 2, a third measuring ruler 3 and a sealing device 10, wherein the first measuring ruler 1 is connected with the second measuring ruler 2 through a first connecting device 5, a magnetic fixing device 102 is further arranged on one side, which is not connected with the second measuring ruler 2, of the first measuring ruler 1, and the second measuring ruler 2 is connected with the third measuring ruler 3 through a second connecting device 4; the first connecting device 5 is further connected with a compass drawing device 8, a compass drawing measuring device 9 is further arranged between the compass drawing device 8 and the first measuring scale 1, the second connecting device 4 is further connected with a protractor 6 and an angle measuring drawing device 7, and the first measuring scale 1 is connected with the third measuring scale 3 through a sealing device 10; the first connecting device 5 and the second connecting device 4 are rotatable fixing clamps and devices; first dipperstick 1, second dipperstick 2 and third dipperstick 3 openly all are equipped with even scale.

It should be noted that the devices connected to the first connecting device 5 and the second connecting device 4 can rotate 360 °, and the structure of the first connecting device 5 and the second connecting device 4 is a rotating button capable of rotating 360 °, which is a common knowledge in the art, for example, the structure described in "CN 200620115018.7, rotating button", and will not be described again.

First dipperstick 1, second dipperstick 2 and third dipperstick 3 length are the same, and first dipperstick 1, second dipperstick 2 and third dipperstick splice into confined equilateral triangle through closing device 10, and wherein closing device 10 includes first fixed interface 1001 and second fixed interface 1002.

It should be noted that the first fixing interface 1001 is connected to the first measuring ruler 1, and the second fixing interface 1002 is connected to the third measuring ruler 3, thereby fixedly connecting the first measuring ruler 1 and the third measuring ruler 3.

The opposite of first dipperstick 1 scale surface is equipped with first magnetism slipmat 101, the opposite of second dipperstick 2 scale surface is equipped with second magnetism slipmat 201, and the opposite of third dipperstick 3 scale surface is equipped with third magnetism slipmat 301.

It should be noted that, in operation, when the compasses function of the ruler for primary school mathematics teaching is needed, the ruler device for primary school mathematics teaching is vertically adsorbed on the magnetic blackboard through the magnetic fixing device 102 of the first measuring ruler 1, the radius of the drawn circle is set through the compasses drawing measuring device 9, and the compasses drawing device 8 of the ruler for primary school mathematics teaching is rotated by 360 degrees;

when this ruler angular surveying function for primary school's mathematics teaching needs to be used, rotatory third dipperstick makes the limit of third dipperstick and the coincidence of the angular surveying base of protractor, overlaps one side of required measurement angle and the limit of third dipperstick, and another limit of required measurement angle and compasses drawing device 8 coincidence observe the reading of compasses drawing device 8 on the protractor.

When need using this ruler set square function for primary school's mathematics teaching, couple together first dipperstick 1 and third dipperstick 3 through closing device 10, because first dipperstick, second dipperstick and third dipperstick length are the same, constitute equilateral triangle shaped board.

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. A ruler for primary school mathematics teaching comprises a first measuring ruler (1), a second measuring ruler (2), a third measuring ruler (3) and a sealing device (10), and is characterized in that the first measuring ruler (1) is connected with the second measuring ruler (2) through a first connecting device (5), and the second measuring ruler is connected with the third measuring ruler (3) through a second connecting device (4); the first connecting device (5) is further connected with a compasses drawing device (8), the second connecting device (4) is further connected with a protractor (6) and an angle measurement drawing device (7), and the first measuring scale (1) is connected with the third measuring scale (3) through the sealing device (10); the first connecting device (5) and the second connecting device (4) are rotatable fixing clamps and devices.

2. A ruler for primary school mathematics teaching according to claim 1, characterized in that said first measuring ruler (1), said second measuring ruler (2) and said third measuring ruler (3) are of the same length, said first measuring ruler (1), said second measuring ruler (2) and said third measuring ruler are spliced into a closed equilateral triangle by said closing means (10), wherein said closing means (10) comprises a first fixing interface (1001) and a second fixing interface (1002).

3. A ruler for teaching mathematics in an elementary school according to claim 1, characterized in that between said compass drawing means (8) and said first measuring ruler (1) there is also a compass drawing measuring means (9).

4. A ruler for teaching mathematics in an elementary school according to claim 1, characterized in that the side of said first measuring ruler (1) not connected to said second measuring ruler (2) is also provided with magnetic fixing means (102).

5. A ruler for teaching mathematics in an elementary school according to claim 1, characterized in that said first measuring ruler (1), said second measuring ruler (2) and said third measuring ruler (3) are provided with uniform scales on the front.

6. A ruler for teaching mathematics in an elementary school according to claim 1, wherein said first measuring ruler (1) is provided with a first magnetic non-slip mat (101) opposite to the graduated surface, said second measuring ruler (2) is provided with a second magnetic non-slip mat (201) opposite to the graduated surface, and said third measuring ruler (3) is provided with a third magnetic non-slip mat (301) opposite to the graduated surface.