CN215662692U

CN215662692U - Dipperstick is used in primary school's mathematics classroom

Info

Publication number: CN215662692U
Application number: CN202121324524.8U
Authority: CN
Inventors: 邓宁玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-01-28
Anticipated expiration: 2031-06-15

Abstract

The utility model relates to the technical field of learning tools, and discloses a measuring ruler for a primary school mathematics classroom, which comprises: the 360-degree protractor is characterized in that a first straight ruler is fixedly mounted on the 360-degree protractor, a second straight ruler is connected to the 360-degree protractor in a sliding mode, and a first compass supporting leg and a second compass supporting leg are connected to the second straight ruler in a sliding mode. The ruler is provided with 360-degree scale marks, so that the angle measurement is more accurate and convenient, the first ruler and the second ruler are matched, the drawing of straight lines and parallel lines is more rapid, circles can be drawn by rotating the support legs of the compasses, the ruler is integrated and multipurpose, and the trouble of carrying various tools is avoided.

Description

Dipperstick is used in primary school's mathematics classroom

Technical Field

The utility model relates to the technical field of learning tools, in particular to a measuring scale for a primary school mathematics classroom.

Background

At present, along with the development of modern scientific technology, a math class plays a vital role as a basic subject, learning stationery is used in the math class, the learning stationery is the most important branch of stationery, the learning stationery is mainly divided into student supplies and teaching supplies, a ruler, a protractor, a compass and the like are used for learning by students frequently in the math class, the ruler is used for drawing lines and measuring, the tools are single in use, the students are independent individuals and can not be used conveniently, the ruler is required to be replaced frequently during use and is not easy to carry, the loss of one tool can cause that the whole operation can not be carried out, and certain trouble is caused to pupils, so that technicians in the field provide a measuring ruler for a primary school math class to solve the problems provided in the background.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a measuring scale for a primary school mathematics classroom, which at least aims to solve the technical problems that the student supplies in the prior art are single in function, not easy to carry and required to be frequently replaced when in use.

In order to achieve the above object, an aspect of the present invention provides a measuring ruler for a primary school mathematics classroom, including: the 360-degree protractor is fixedly provided with a first straight ruler, the 360-degree protractor is provided with a first slideway and a second slideway, the second straight ruler is in sliding connection with the 360-degree protractor through the matching of the first slideway and the second slideway, a third slide way is arranged on the second ruler, the third slide way is provided with a first slide block and a second slide block, the first slide block is hinged with a first compass supporting leg through a first damping rotating shaft, the second slide block is hinged with a second compass supporting leg through a second damping rotating shaft, the first compass supporting leg is fixedly connected with a first pointer, the first telescopic rod is connected with the first compass supporting leg in a sliding way, first compasses landing leg demountable installation has first nib, second compasses landing leg fixed mounting has the second pointer, the second telescopic link with second compasses landing leg sliding connection, second compasses landing leg demountable installation has the second nib.

The technical scheme of the utility model provides a measuring scale for a primary school mathematics classroom, the measurable angle range of a protractor with 360-degree scales is enlarged, a first ruler and the 360-degree protractor are integrally formed to draw a straight line segment and measure the length, a first compass supporting leg and a second compass supporting leg are matched to draw a circle, the first compass supporting leg and the second compass supporting leg are connected to the second ruler through a sliding block, the second ruler is in sliding connection with the 360-degree protractor, the tool functionality is increased, and the measuring scale is of an integral structure and is convenient to carry.

Drawings

Fig. 1 is a schematic top view of a measuring ruler for a primary school mathematics classroom according to an embodiment of the present invention;

FIG. 2 is a schematic side sectional view of a measuring ruler for a primary school mathematics classroom according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of a portion B of FIG. 1;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

fig. 5 is an enlarged schematic view of the portion C of fig. 1.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

1360 protractor, 2 first ruler, 3 first slide way, 4 second ruler, 5 second slide way, 6 first slide block, 7 first compasses supporting leg, 8 third slide way, 9 second compasses supporting leg, 10 second slide block, 11 second pointer, 12 first telescopic link, 13 first limiting block, 14 second limiting block, 15 first damping rotating shaft, 16 first pointer, 17 first pen point clamping rod, 18 fastening screw, 19 fixing clamping block, 20 first pen point, 21 threaded hole, 22 second damping rotating shaft, 23 second pen point, 24 third limiting block, 25 fourth limiting block, 26 second telescopic link, 27 second pen point clamping rod.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A measuring ruler for an elementary school mathematics classroom according to some embodiments of the present invention will be described with reference to fig. 1 to 5.

Referring to fig. 1 and 2, a primary school mathematics classroom measuring scale according to some embodiments of the present invention includes a 360 ° protractor 1, a first ruler 2 is fixedly mounted on the 360 ° protractor 1, the first ruler 2 and the 360 ° protractor 1 are integrally formed, a first slideway 3 and a second slideway 5 are arranged on the inner wall of the 360 ° protractor 1 below the first ruler 2, the second ruler 4 is slidably connected with the 360 ° protractor 1 through the first slideway 3 and the second slideway 5, a third slideway 8 is arranged on the second ruler 4, the third slideway 8 is provided with a first slider 6 and a second slider 10, the first slider 6 is fixedly provided with a first damping rotating shaft 15, the first leg 7 is hinged with the first slider 6 through the first damping rotating shaft 15, the second slider 10 is fixedly provided with a second damping rotating shaft 22, the second leg 9 is hinged with the second slider 10 through the second damping rotating shaft 22, first pointer 16 of 7 fixedly connected with of first compasses landing leg, first

telescopic link

12 and 7 sliding connection of first compasses landing leg, first compasses landing leg 7 demountable installation has first pen point 20, first pointer 16 and first pen point 20 are on same water flat line, 9 fixed mounting of second compasses landing leg has second pointer 11, second

telescopic link

26 and 9 sliding connection of second compasses landing leg, 9 demountable installation of second compasses landing leg has second nib 23, second pointer 11 and second nib 23 are on same water flat line.

Optionally, the 360-degree protractor 1, the first ruler 2 and the second ruler 4 are all made of transparent materials, so that a user can conveniently measure and read the scale, and the outer side walls of the scale marks of the 360-degree protractor 1, the first ruler 2 and the second ruler 4 are coated with wear-resistant paint, so that the wear resistance of the ruler body is improved, and the service life is prolonged.

Optionally, the circle center of the 360-degree protractor 1 is hollowed, and the rectangular position between the first ruler 2 and the second ruler 4 is hollowed, so that the second ruler 4 can be conveniently moved up and down and the drawing can be conveniently measured and positioned.

Optionally, the first ruler 2 is located at the horizontal line positions of the 0 ° and 180 ° scales of the 360 ° protractor 1, which is beneficial for the user to measure the drawing.

In the embodiment of the disclosure, when the length needs to be measured or a straight line segment needs to be drawn, the first straight ruler 2 can be directly used for operation, when parallel lines need to be drawn, the first straight ruler 2 and the second straight ruler 4 are used for cooperation operation, and the second straight ruler 4 can move up and down through the first slideway 3 and the second slideway 5 to meet the parallel line spacing; when the angle measurement and drawing angle measurement are needed, the 360 ° protractor 1 can be directly used for measurement or drawing, for example: when drawing an acute angle of 60 degrees, determining a point as the vertex of the drawn acute angle of 60 degrees by using the circle center of the 360-degree protractor 1, determining a point as the point on one edge of the drawn acute angle of 60 degrees at the 0-degree scale of the 360-degree protractor 1, determining a point as the point on the other edge of the drawn acute angle of 60 degrees at the 60-degree scale of the 360-degree protractor 1, moving the 360-degree protractor 1 to enable the first straight rule 2 to be connected with the vertex and the point determined at the 0-degree scale to draw one edge of the acute angle of 60 degrees, and rotating the 360-degree protractor 1 to enable the first straight rule 2 to be connected with the vertex and the point determined at the 60-degree scale to draw the other edge of the acute angle of 60 degrees, so that an acute angle of 60 degrees is obtained; when needs use the compasses, rotate 90 earlier first compasses landing leg 7 and second compasses landing leg 9, can satisfy the drawing of different radius circles through the slider on second ruler 4 goes up the slip, behind the accurate radius of rethread pointer, use one of them compasses landing leg as the fixed point at last, the rotatory circle of drawing.

In some embodiments, as shown in fig. 3 to 5, a first limit block 13 and a second limit block 14 are fixedly mounted on the first slider 6, an included angle between extension lines of the first limit block 13 and the second limit block 14 is 90 °, the first telescopic rod 12 is slidably connected with the first compass leg 7, and the first pen point 20 is mounted on the first compass leg 7 through a clamping mechanism, wherein the clamping mechanism includes: the first compasses landing leg 7 is internally provided with a fixed clamping block 19 below the fastening screw 18, the first pen point 20 is fixedly connected with a first pen point clamping rod 17, and the fastening screw 18 and the fixed clamping block 19 are matched to clamp the first pen point clamping rod 17 to assemble, disassemble and replace the first pen point 20;

fixed mounting has third stopper 24, fourth stopper 25 on the second slider 10, and the extension line contained angle of third stopper 24 and fourth stopper 25 is 90, second

telescopic link

26 and 9 sliding connection of second compasses landing leg, and second nib 23 passes through clamping mechanism and installs on second compasses landing leg 9, and wherein, clamping mechanism includes: the fastening screw 18 is fixedly mounted on the second compass supporting leg 9 through the threaded hole 21, the fixing clamping block 19 is mounted below the fastening screw 18 in the second compass supporting leg 9, the second pen point 23 is fixedly connected with the second pen point clamping rod 27, the second pen point clamping rod 27 is clamped through the cooperation of the fastening screw 18 and the fixing clamping block 19, and the second pen point 23 is mounted, dismounted and replaced.

Optionally, when the first nib 20 is a nib, the second nib 23 is a compass tip; when the first pen point is a compass point, the second pen point 23 is a pen point.

In the embodiment of the disclosure, when the compasses supporting legs are used for drawing circles, the first compasses supporting leg 7 and the second compasses supporting leg 9 are firstly rotated by 90 degrees, namely, the first compass leg 7 rotates from the limit position of the second limit block 14 to the limit position of the first limit block 13 through the first damping rotating shaft 15, the second compass leg 9 rotates from the limit position of the third limit block 24 to the limit position of the fourth limit block 25 through the second damping rotating shaft 22, the first compass leg 7 is extended to a proper position through the first telescopic rod 12, the second compass leg 9 is extended to a proper position through the second telescopic rod 26, when the first compass leg 7 is taken as the compass tip, the second compass leg is taken as the pen point, and moves on the second ruler 4 through the sliding block, and determining the radius by using the pointer through the scales on the second ruler 4, and finally performing rotary drawing by using the compass supporting leg as the compass tip as the circle center and the compass supporting leg as the pen point as the radius to obtain the required circle.

In the present invention, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance: the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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 utility model. Throughout this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation 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.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting.

Claims

1. The utility model provides a dipperstick is used in primary school's mathematics classroom which characterized in that includes:

360 protractor (1), fixed mounting has first ruler (2) on 360 protractor (1), 360 protractor (1) sliding connection has second ruler (4), be equipped with third slide (8) on second ruler (4), install first slider (6), second slider (10) on third slide (8), install first compasses landing leg (7) on first slider (6), install second compasses landing leg (9) on second slider (10), first compasses landing leg (7) fixed connection has first pointer (16), first telescopic link (12) with first compasses landing leg (7) sliding connection, first compasses landing leg (7) demountable installation has first nib (20), second landing leg compasses (9) fixed mounting has second pointer (11), second telescopic link (26) with second compasses landing leg (9) sliding connection, and a second pen point (23) is detachably mounted on the second compass supporting leg (9).

2. The measuring ruler for primary school mathematics classroom according to claim 1, characterized in that: the first ruler (2) and the 360-degree protractor (1) are integrally formed.

3. The measuring ruler for primary school mathematics classroom according to claim 2, characterized in that: be equipped with first slide (3) and second slide (5) on 360 protractor (1) inner wall, second ruler (4) pass through first slide (3) second slide (5) with 360 protractor (1) sliding connection.

4. The measuring ruler for primary school mathematics classroom according to claim 3, characterized by that: the first compass supporting leg (7) is hinged to the first sliding block (6) through a first damping rotating shaft (15), and the second compass supporting leg (9) is hinged to the second sliding block (10) through a second damping rotating shaft (22).

5. The measuring ruler for primary school mathematics classroom according to claim 4, characterized by that: the first pointer (16) and the first pen point (20) are on the same horizontal line, the first pointer (16) is fixedly mounted at the center of the tail end of the first compass supporting leg (7), and the first pen point (20) is detachably mounted on a clamping mechanism of the first compass supporting leg (7).

6. The measuring ruler for primary school mathematics classroom according to claim 5, characterized by that: the second pointer (11) and the second pen point (23) are on the same horizontal line, the second pointer (11) is fixedly mounted at the center of the tail end of the second compass supporting leg (9), and the second pen point (23) is detachably mounted on the clamping mechanism of the second compass supporting leg (9).

7. The measuring ruler for primary school mathematics classroom according to claim 6, characterized by that: the clamping mechanism comprises: fastening screw (18), fastening screw (18) are in through screw hole (21) fixed mounting on first compasses landing leg (7), lie in fastening screw (18) below in first compasses landing leg (7) and install fixed clamp splice (19), fastening screw (18) with fixed clamp splice (19) cooperation, it is right first nib (20) second nib (23) are fixed spacingly.

8. The measuring ruler of claim 7, wherein: first nib (20) fixedly connected with first nib clamping rod (17), second nib (23) fixedly connected with second nib clamping rod (27), clamping machine constructs through pressing from both sides first nib clamping rod (17) second nib clamping rod (27) are right first nib (20) second nib (23) are fixed spacingly.