CN210881471U - Drawing rule for mathematical education - Google Patents

Abstract

The utility model discloses a drawing rule for mathematical education, which comprises a main rule, an angle rule, a first auxiliary rule and a second auxiliary rule, the utility model has simple structure and convenient use, can facilitate the drawing of straight lines through the setting of the main rule, can facilitate the measurement of angles through the setting of the angle rule, can draw the angle of a required included angle through the setting of the first auxiliary rule and the second auxiliary rule, can fix the included angle between the first auxiliary rule and the second auxiliary rule through the setting of locking parts on the first auxiliary rule and the second auxiliary rule, is convenient for drawing, can put chalk into a pen placing cylinder through an adjustable pen placing cylinder on the first auxiliary rule, and can draw a pitch arc under the action of the first auxiliary rule in an unfixed state, can draw a fan shape by matching the first auxiliary rule and the second auxiliary rule, is convenient for holding the main rule through the setting of a holding ring on one side of the main rule, is convenient for drawing, a detachable eraser at the bottom of the main rule can be convenient for wiping in the drawing process, can be disassembled when not in use.

Description

Drawing rule for mathematical education

Technical Field

The utility model relates to a mathematical education technical field specifically indicates a mathematical education drawing rule.

Background

In the current classroom teaching, teachers use various teaching tools, although high-tech computers and projectors are provided, blackboards still occupy a great proportion in teaching, especially in mathematics classes, teachers can draw patterns by using various teaching rulers, but the teaching rulers are single in function and cannot meet the use requirements.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a drawing rule for mathematical education, includes main scale, bevel protractor, vice chi two, the bevel protractor sets up in main scale upper portion, the bevel protractor is hollow semi-circular chi, the bevel protractor inboard is equipped with the arc passageway that corresponds with the bevel protractor radian, vice chi, two one end of vice chi and main scale are close to the middle part connecting block rotatable coupling of bevel protractor one side, but the other end passes through sliding block and arc passageway sliding connection, vice chi one surface is provided with rectangular type passageway along vice chi length direction, it places a section of thick bamboo to run through on the rectangular type passageway to be equipped with a pen, a section of thick bamboo is hollow structure and a section of thick bamboo is placed to the pen can be followed rectangular type passageway and removed.

As an improvement, corresponding scale marks are arranged on one side, away from the angle ruler, of the main ruler, one side, close to the arc-shaped channel, of the angle ruler, one side, close to the auxiliary ruler II, of the auxiliary ruler I and one side, close to the auxiliary ruler I, of the auxiliary ruler II.

As the improvement, one side that the angle chi was kept away from to the arc passageway is equipped with inlet channel, arc passageway surface is equipped with outlet channel, the sliding block stretches out the arc passageway and is connected with the retaining member from outlet channel.

As an improvement, one end of the first auxiliary ruler and one end of the second auxiliary ruler, which are positioned in the arc-shaped channel, close to the scale marks are respectively provided with a ruler mark piece pointing to the angle ruler.

As an improvement, the pen placing barrel comprises a barrel body, a top clamping end and a bottom clamping end are respectively arranged at two ends of the barrel body, and a locking ring matched with the outer surface of the barrel body is arranged on the part, located between the upper surface of the auxiliary ruler and the top clamping end, of the barrel body.

As an improvement, one end of the main ruler is provided with a holding ring protruding outwards, and one side of the other end, which is far away from the angle ruler, is provided with a detachable eraser.

As an improvement, one side of the main ruler, which is far away from the angle ruler, is provided with an eraser connecting slide way, the eraser is provided with a connecting clamping piece corresponding to the eraser connecting slide way, and the eraser is matched with the slide plate connecting slide way through the connecting clamping piece to enable the eraser to be detachably connected with the main ruler.

After the structure more than adopting, the utility model has the advantages of as follows: the utility model discloses simple structure, high durability and convenient use, can make things convenient for drawing of straight line through the setting of main scale, can make things convenient for the measurement of angle through the setting of bevel protractor, through vice chi one, the angle of the required contained angle of drawing of being convenient for of setting up of vice chi two, through vice chi one, the setting of retaining member on the vice chi two can fix vice chi one, contained angle between the vice chi two, be convenient for draw, a section of thick bamboo is placed to pen with adjustable on the vice chi one, can put into a section of thick bamboo with the chalk, and under the effect of the vice chi one of non-stationary state, draw the pitch arc, cooperate vice chi one, vice chi two, can draw fan-shapedly, the setting of ring is gripped through main scale one side, the control of the main scale of being convenient for, convenient drawing, the removable blackboard eraser of main scale bottom can be convenient for the cleaning of drawing in-process.

Drawings

Fig. 1 is a schematic structural view of the drawing ruler for mathematical education of the present invention.

Fig. 2 is a schematic structural view of the bottom of the main scale in the drawing ruler for mathematical education.

Fig. 3 is a schematic view of the connection structure between the first auxiliary ruler and the arc channel of the drawing ruler for mathematical education.

Fig. 4 is the utility model relates to a sliding block set up the schematic diagram in the drawing ruler of mathematical education.

Fig. 5 is a schematic structural view of a pen container in the drawing ruler for mathematical education.

Fig. 6 is a schematic view of the installation structure of the detachable eraser in the drawing ruler for mathematics teaching of the present invention.

As shown in the figure: 1. the pen container comprises a main ruler, 2, an angle ruler, 3, auxiliary rulers I and I, 4, auxiliary rulers II and 5, an arc-shaped channel, 501, an inlet channel, 502, an outlet channel, 6, a middle connecting block, 7, a sliding block, 701, a locking part, 8, a strip-shaped channel, 9, a pen containing barrel, 901, a barrel body, 902, a top clamping end, 903, a bottom clamping end, 904, a locking ring, 10, a ruler mark part, 11, a holding ring, 12, a detachable eraser, 13, an eraser connecting slide way, 14 and a connecting clamping part.

Detailed Description

With reference to fig. 1 to 6, a drawing rule for mathematical education comprises a main rule 1, an angle rule 2, a first auxiliary rule 3 and a second auxiliary rule 4, wherein the angle rule 2 is arranged on the upper portion of the main rule 1, the angle rule 2 is a hollow semicircular rule, an arc-shaped channel 5 corresponding to the radian of the angle rule 2 is arranged on the inner side of the angle rule 2, one ends of the first auxiliary rule 3 and the second auxiliary rule 4 are rotatably connected with a middle connecting block 6 on one side of the main rule close to the angle rule 2, the other end of the first auxiliary rule is slidably connected with the arc-shaped channel 5 through a sliding block 7, a long-strip-shaped channel 8 is arranged on the surface of the first auxiliary rule 3 along the length direction of the first auxiliary rule 3, a pen placing cylinder 9 penetrates through the long-strip-shaped channel 8, the pen placing cylinder 9 is of a hollow structure, and the pen placing cylinder.

As a preferred embodiment of this embodiment, the side of the main scale 1 away from the angle ruler 2, the side of the angle ruler 2 close to the arc-shaped channel 5, the side of the secondary scale one 3 close to the secondary scale two 4, and the side of the secondary scale two 4 close to the secondary scale one 3 are all provided with corresponding scale marks.

As a preferred embodiment of the embodiment, the side of the arc-shaped channel 5 far away from the angle ruler 2 is provided with an inlet channel 501, the surface of the arc-shaped channel 5 is provided with an outlet channel 502, and the sliding block 7 extends out of the arc-shaped channel 5 from the outlet channel and is connected with a locking piece 701. Retaining member 701 is a threaded retaining member.

As a preferred embodiment of the present embodiment, the end of the first auxiliary ruler 3 and the second auxiliary ruler 4 located in the arc-shaped channel 5, which is close to the scale mark, is respectively provided with a ruler mark 10 pointing to the angle ruler 2.

As a preferred embodiment of this embodiment, the pen placing cylinder 9 includes a cylinder body 901, a top clamping end 902 and a bottom clamping end 903 are respectively disposed at two ends of the cylinder body 901, and a locking ring 904 engaged with the outer surface of the cylinder body 901 is disposed on a portion of the cylinder body 901 located between the upper surface of the first sub ruler 3 and the top clamping end 902. The locking ring 904 is a threaded locking ring.

As a preferred embodiment of the present embodiment, the main ruler 1 is provided with an outwardly protruding grip ring 11 at one end, and a detachable eraser 12 at the other end on the side away from the angle ruler 3.

As a preferred embodiment of this embodiment, an eraser connecting slide 13 is disposed on a side of the main scale 1 away from the bevel protractor 2, a connecting fastener 14 corresponding to the eraser connecting slide 13 is disposed on the eraser 12, and the eraser 12 is detachably connected to the main scale 1 by the connecting fastener 14 cooperating with the sliding plate connecting slide 13.

In the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly but via another feature. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the first feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (7)

1. The utility model provides a drawing rule for mathematical education, its characterized in that includes main scale, bevel protractor, vice chi two, the bevel protractor sets up in main scale upper portion, the bevel protractor is hollow semi-circular chi, the bevel protractor inboard is equipped with the arc passageway that corresponds with the bevel protractor radian, vice chi, two one end of vice chi and main scale are close to middle part connecting block rotatable coupling of bevel protractor one side, but the other end passes through sliding block and arc passageway sliding connection, vice chi one surface is provided with rectangular type passageway along vice chi length direction, it places a section of thick bamboo to run through on the rectangular type passageway to be equipped with a pen, a section of thick bamboo is hollow structure is placed to a pen just a section of thick bamboo can be followed rectangular type passageway and removed.

2. A drawing rule for mathematics teaching as claimed in claim 1, wherein the side of the main rule far from the angle rule, the side of the angle rule near the arc channel, the side of the first auxiliary rule near the second auxiliary rule and the side of the second auxiliary rule near the first auxiliary rule are all provided with corresponding scale marks.

3. A drawing rule for mathematics teaching as claimed in claim 1, wherein the side of the curved channel remote from the angle rule is provided with an inlet channel, the curved channel surface is provided with an outlet channel, and the sliding block extends out of the curved channel from the outlet channel and is connected with a locking element.

4. A drawing rule for mathematics teaching as claimed in claim 3, wherein the first and second auxiliary rules are located at the ends of the arc-shaped channel and have respective scale marks pointing to the angle rule on the sides close to the scale marks.

5. A drawing rule for mathematics teaching according to claim 1, wherein the pen container comprises a barrel body provided at both ends with a top clamping end and a bottom clamping end, respectively, and a locking ring fitted to the outer surface of the barrel body is provided at a portion of the barrel body between an upper surface of the sub rule and the top clamping end.

6. A drawing rule for mathematics teaching as claimed in claim 1, wherein the main rule is provided with an outwardly projecting gripping ring at one end and a removable eraser at the other end on the side remote from the angle rule.

7. The drawing ruler for mathematics teaching as claimed in claim 1, wherein the side of the main ruler far from the angle ruler is provided with an eraser connecting slide way, the eraser is provided with a connecting fastener corresponding to the eraser connecting slide way, and the eraser is detachably connected with the main ruler by the matching of the connecting fastener and the slide board connecting slide way.

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