CN220220224U

CN220220224U - Rotary diagraph

Info

Publication number: CN220220224U
Application number: CN202321580567.1U
Authority: CN
Inventors: 魏伟娜; 魏法俊
Original assignee: Weifang Qingda Youyang New Material Technology Development Co ltd
Current assignee: Weifang Qingda Youyang New Material Technology Development Co ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-12-22
Anticipated expiration: 2033-06-20

Abstract

The utility model relates to the technical field of mathematical education equipment, in particular to a rotary diagraph. The rotary diagrammer comprises an angle scale with angle scales, wherein the central axis of the angle scale is hinged with a length scale with length scales through a rotary pipe, a sliding groove extending along the radial direction of the angle scale is formed in the length scale, a sliding pipe is connected in the sliding groove in a sliding manner, and the diameters of the two ends of the sliding pipe are larger than the diameter of the middle part of the sliding pipe. The angle scale can determine the rotation angle of the length scale, the slide tube determines the position of any rotation point, and the rotation of the length scale can be completed, so that the angle scale can be used for learning the concept of rotation and the basic property of the angle scale.

Description

Rotary diagraph

Technical Field

The utility model relates to the technical field of mathematical education equipment, in particular to a rotary diagraph.

Background

In the first few mathematics, the concept of rotation and the basic properties thereof need to be demonstrated, and in the prior art, tools such as a protractor, a compass, a graduated scale and the like need to be used respectively. As in example 1, ΔABC is rotated clockwise about point O by 30 to give ΔA ' B ' C '. The angle gauge is held by one hand of a teacher and the graduated scale is held by the other hand, the cooperation between the graduated scale and the angle gauge completely depends on the action stability of the teacher in the demonstration process, and the rotation center of the graduated scale is difficult to align with the center of the angle gauge in the actual operation process, so that the operation is inconvenient and the demonstration effect is poor.

Disclosure of Invention

The utility model aims to provide a rotary diagraph for completing the rotation of point, line and surface patterns, which can be used for learning concepts of rotation and basic properties thereof in a class.

In order to achieve the aim, the utility model discloses a rotary diagraph which comprises an angle dial with angle scales, wherein the central axis of the angle dial is hinged with a length scale with length scales through a rotary pipe, the length scale is provided with a sliding groove extending along the radial direction of the angle dial, the sliding groove is in sliding connection with a sliding pipe, and the diameters of the two ends of the sliding pipe are larger than the diameter of the middle part of the sliding pipe.

The angle scale can determine the rotation angle of the length scale, the slide tube determines the position of any rotation point, and the rotation of the length scale can be completed, so that the angle scale can be used for learning the concept of rotation and the basic property of the angle scale.

Preferably, the diameter of the two ends of the rotary tube is larger than the diameter of the middle part of the rotary tube.

The structure is convenient to manufacture and install and convenient to use.

Preferably, the distance between the rotary pipe and the sliding groove is smaller than the radius of the angle scale.

When the length scale is rotated, the angle scale can be observed through the chute, and the length scale can be conveniently adjusted to be aligned with the scale of the angle scale.

Preferably, the length scale is provided with an angle indication arrow mark extending along the radial direction of the angle scale.

When the length ruler is rotated, the angle scales can be aligned through the indication arrow mark, and the alignment of the length ruler and the scales of the angle scale can be conveniently adjusted.

Preferably, the rear end of the angle indication arrow mark is positioned at the rotary pipe, and the front end of the angle indication arrow mark is positioned at one end of the sliding groove close to the rotary pipe.

When in use, the length of the angle indication arrow mark is longer, the mark is more obvious, and the identification is convenient.

Preferably, one end of the sliding groove close to the rotary pipe is provided with a triangular indicating part.

When the length ruler is used, the angle scale can be aligned through the triangular indication part when the length ruler rotates, and the alignment of the length ruler and the scale of the angle scale can be conveniently adjusted.

Preferably, the angle scale is spliced by two semicircle instruments, and the back of the angle scale is provided with a back plate for connecting the two semicircle instruments.

The structure is convenient to manufacture and install and convenient to use.

Preferably, the back of the angle scale is connected with an angle scale magnet, and the back of the length scale is connected with a length scale magnet.

When in use, the angle scale and the length scale are conveniently adsorbed on the blackboard, and the blackboard is convenient to use.

Preferably, the number of the angle scale magnets is four, and the four angle scale magnets are uniformly arranged along the circumference of the angle scale.

When in use, the angle scale is conveniently adsorbed on the blackboard, and the fixation is firm.

Preferably, the length scale magnet is located at an end of the length scale remote from the rotary tube.

When in use, the length ruler is conveniently adsorbed on the blackboard, and is fixed firmly.

In summary, the beneficial effects of the utility model are as follows: the angle scale can determine the rotation angle of the length scale, the slide tube determines the position of any rotation point, and the rotation of the length scale can be completed, so that the angle scale can be used for learning the concept of rotation and the basic property of the angle scale.

Drawings

FIG. 1 is a schematic elevational view of a rotary plotter according to the present utility model;

FIG. 2 is a schematic view of the structure of section A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of the portion B of FIG. 2;

FIG. 4 is an enlarged schematic view of the portion C of FIG. 2;

FIG. 5 is an enlarged schematic view of the portion D of FIG. 1;

FIG. 6 is an enlarged schematic view of the portion E of FIG. 1;

fig. 7 is a schematic view of the back structure of a rotary plotter according to the present utility model.

In the figure: 1. an angle scale; 2. an angle scale; 3. a length scale; 4. a chute; 5. a slide tube; 6. a length scale; 7. an angle plate magnet; 8. a length scale magnet; 9. a back plate; 10. a rotary pipe; 11. an angle indication arrow mark; 12. triangle indication part.

Description of the embodiments

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The utility model is further described with reference to the drawings and detailed description which follow:

as shown in fig. 1 to 7, a rotary diagrammer comprises an angle scale 1 with an angle scale 2, wherein a length scale 3 with a length scale 6 is hinged on the central axis of the angle scale 1 through a rotary pipe 10, a sliding groove 4 extending along the radial direction of the angle scale 1 is arranged on the length scale 3, a sliding pipe 5 is connected in the sliding groove 4 in a sliding way, and the diameters of the two ends of the sliding pipe 5 are larger than the diameter of the middle part of the sliding pipe.

The angle scale 1 can determine the rotation angle of the length scale 3, the slide tube 5 determines the position of any rotation point, the rotation of the length scale 3 can be completed, and the rotation of the point, line and surface patterns can be completed, so that the angle scale can be used for learning the concept of the rotation and the basic properties of the angle scale.

When in use, the length ruler 3 is adjusted to be aligned with the 0 scale of the angle scale 1, and the rotary pipe 10 is aligned with the rotation center of the drawing required by the alignment; the slide tube 5 is aligned with the point on the graph to be rotated, so that the rotation center, the 0 scale and the point on the graph to be rotated are in a straight line; and (3) swinging the length ruler 3 to a rotated position according to the requirements of the rotation direction and the rotation angle, and marking by using chalk through the slide tube 5, namely the position of the rotated point.

As in example 1, ΔABC is rotated clockwise about point O by 30 to give ΔA ' B ' C '. Firstly, aligning a rotary pipe 10 with a point O on a blackboard, aligning an adjusting length ruler 3 with a 0 scale of an angle scale 1, and aligning a point A at the middle position of a chute 4; then, adjusting the position of the slide tube 5 to the vertex A, rotating the length scale 3 clockwise for 30 degrees to obtain the position of the rotated vertex A', and rotating other vertices forming the graph to be rotated according to the method to obtain the position of the rotated vertex; finally, the method includes the steps of; the rotated vertices a ', B', C 'are sequentially connected to obtain rotated Δa' B 'C'.

As in example 2, the point P is rotated counter-clockwise by 60 about the point O to obtain the corresponding point P'. Firstly, aligning a rotary pipe 10 with a point O on a blackboard, aligning an adjusting length ruler 3 with a 0 scale of an angle scale 1, and aligning a point P at the middle position of a chute 4; then, the position of the slide 5 to P is adjusted; finally, the length scale 3 is rotated 60 ° counterclockwise, and the position of the rotated vertex P' is obtained.

As in example 3, the known pattern is rotated by an angle α clockwise or counterclockwise about point O. Firstly, a graph to be rotated is placed on any position of the length scale 3, specifically, double-sided adhesive tape can be used for pasting, then the rotary tube 10 is aligned with a point O on a blackboard, the length scale 3 is aligned with the 0 scale of the angle scale 1, and finally, the length scale 3 can obtain the graph before and after rotation according to the anticlockwise rotation angle alpha.

The diameter of both ends of the rotary pipe 10 is larger than the diameter of the middle part thereof. Specifically, when the rotary pipe 10 is installed, firstly, the rotary pipe 10 passes through the angle scale 1 and the length scale 3; then, both ends of the rotary pipe 10 are bent outward.

The structure is convenient to manufacture and install and convenient to use.

The distance between the rotary pipe 10 and the chute 4 is smaller than the radius of the angle disc 1.

When the angle scale is used, when the length scale 3 rotates, the angle scale 2 can be observed through the chute 4, and the length scale 3 is conveniently adjusted to be aligned with the 0 scale of the angle scale 1.

The length scale 3 is provided with an angle indication arrow mark 11 extending along the radial direction of the angle scale 1.

When the length scale 3 is rotated, the angle scale 2 can be aligned through the indication arrow mark 11, and the alignment of the length scale 3 and the 0 scale of the angle scale 1 can be conveniently adjusted.

The rear end of the angle indication arrow mark 11 is positioned at the rotary pipe 10, and the front end of the angle indication arrow mark 11 is positioned at one end of the chute 4 close to the rotary pipe 10.

When in use, the length of the angle indication arrow mark 11 is longer, the mark is more obvious, and the identification is convenient.

The chute 4 has a triangular indicator 12 at one end near the rotary tube 10.

When the angle scale is used, when the length scale 3 rotates, the angle scale 2 can be aligned through the triangular indicating part 12, and the length scale 3 can be conveniently adjusted to be aligned with the 0 scale of the angle scale 1.

The angle scale 1 is formed by splicing two semicircular instruments, and a backboard 9 for connecting the two semicircular instruments is arranged on the back surface of the angle scale 1.

The structure is convenient to manufacture and install and convenient to use.

The back of the angle scale 1 is connected with an angle scale magnet 7, and the back of the length scale 3 is connected with a length scale magnet 8.

When in use, the angle scale 1 and the length scale 3 are conveniently adsorbed on the blackboard, and the use is convenient.

The number of the angle scale magnets 7 is four, and the four angle scale magnets 7 are uniformly arranged along the circumference of the angle scale 1.

When in use, the angle scale 1 is conveniently adsorbed on the blackboard, and the fixation is firm.

The length scale magnet 8 is located at the end of the length scale 3 remote from the rotary tube 10.

When in use, the length ruler 3 is conveniently adsorbed on the blackboard, and the fixation is firm.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. The rotary diagraph is characterized by comprising an angle dial (1) with angle scales (2), wherein a central axis of the angle dial (1) is hinged with a length scale (3) with length scales (6) through a rotary pipe (10), a sliding groove (4) extending along the radial direction of the angle dial (1) is formed in the length scale (3), a sliding pipe (5) is connected in the sliding groove (4) in a sliding manner, and the diameters of two ends of the sliding pipe (5) are larger than the diameter of the middle part of the sliding pipe;

the distance between the rotary pipe (10) and the chute (4) is smaller than the radius of the angle scale (1);

the length ruler (3) is provided with an angle indication arrow mark (11) extending along the radial direction of the angle scale (1);

one end of the sliding groove (4) close to the rotary pipe (10) is provided with a triangular indicating part (12).

2. The rotary plotter according to claim 1, characterized in that the diameter of both ends of the rotary tube (10) is larger than the diameter of the middle portion thereof.

3. The rotary plotter as claimed in claim 2, characterized in that the rear end of the angle indication arrow mark (11) is positioned at the rotary pipe (10), and the front end of the angle indication arrow mark (11) is positioned at one end of the chute (4) close to the rotary pipe (10).

4. A rotary plotter according to any one of claims 1-3, characterized in that the angle dial (1) is made by splicing two pieces of semicircular gauges, and that the back of the angle dial (1) is provided with a back plate (9) connecting the two pieces of semicircular gauges.

5. A rotary plotter according to any one of claims 1-3, characterized in that the angle scale (1) is connected with an angle scale magnet (7) at its back and the length scale (3) is connected with a length scale magnet (8) at its back.

6. The rotary plotter according to claim 5, characterized in that the number of the angle scale magnets (7) is four, and the four angle scale magnets (7) are uniformly arranged along the circumference of the angle scale (1).

7. The rotary plotter as claimed in claim 5, characterized in that the length scale magnet (8) is located at the end of the length scale (3) remote from the rotary tube (10).