CN209833120U

CN209833120U - Multifunctional ruler

Info

Publication number: CN209833120U
Application number: CN201920618610.6U
Authority: CN
Inventors: 管瑞新
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2019-12-24
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to a technical field of teaching articles for use, a multifunctional ruler, it includes the disc, lower disc, the ruler, ruler length direction's one side and last disc body coupling, be provided with a plurality of interval distribution's circular-arc draw-in groove on the rear side outer fringe along the ruler with running through, be provided with a plurality of interval distribution's card hole on the chi face of ruler with running through, the centre of a circle department of going up the disc is in the same place through rotatory subassembly rotatably installing with the centre of a circle department of lower disc, be provided with the angle datum line on going up the disc, be provided with round angle numerical value marking on the outside circumferencial direction of disc down along, at least fixedly connected with one magnet on the lower terminal surface of lower disc. The utility model has the advantages of reasonable and compact structure, collect ruler, compasses, protractor as an organic whole, simple to use, convenient to carry do not influence the continuity of teaching in the use, have fine practicality.

Description

Multifunctional ruler

Technical Field

The utility model relates to a technical field of teaching articles for use is a multi-functional ruler.

Background

Mathematics mr often involves drawing of circle, measuring of figure length, measurement of angle etc. at the teaching in-process, and to reach above-mentioned purpose, need to utilize three kinds of instruments of compasses, ruler, protractor comprehensively, mr need constantly change the instrument at the in-process of class, not only troublesome also do not do benefit to the continuity of teaching, because the kind of teaching instrument is many, consequently carry inconvenient.

Disclosure of Invention

The utility model provides a multi-functional ruler has overcome above-mentioned prior art not enough, and it can effectively solve the mathematics mr and need prepare multiple teaching tool before class, causes the teacher of lecture to carry inconvenient, troublesome to use, the inconsistent problem of teaching.

The purpose of the application is realized as follows: multi-functional ruler, its characterized in that: the ruler comprises an upper disc, a lower disc and a ruler, wherein the upper disc, the lower disc and the ruler are transparent plates, one side of the ruler in the length direction is integrally connected with the upper disc, the outer edges of the front side and the rear side of the ruler are respectively provided with a first length numerical value marking and a second length numerical value marking, a plurality of arc-shaped clamping grooves distributed at intervals are penetratingly arranged on the outer edge of the rear side of the ruler, the chord midpoint of each clamping groove corresponds to a specific second length numerical value marking, a plurality of clamping holes distributed at intervals are penetratingly arranged on the ruler surface of the ruler between the first length numerical value marking and the second length numerical value marking, the circle centers of the clamping holes correspond to the specific second length numerical value marking, a rotating assembly is arranged between the upper disc and the lower disc, the circle center of the upper disc and the circle center of the lower disc are rotatably installed together through the rotating assembly, and an angle, a circle of angle numerical scale lines are arranged along the circumferential direction of the outer side of the lower disc, and at least one magnet is fixedly connected to the lower end face of the lower disc.

The following are further optimization or/and improvement of the technical scheme of the utility model: furthermore, the multifunctional ruler further comprises a through hole, the through hole sequentially penetrates through the upper disc, the rotating assembly and the lower disc from top to bottom, and the circle center of the through hole is on the same straight line with the circle centers of the upper disc and the lower disc.

Further, the left side of the ruler is integrally connected with the right side of the upper disc, or the right side of the ruler is integrally connected with the left side of the upper disc.

Furthermore, the rotating assembly comprises a bearing and a rotating shaft, an upper hole is formed in the center of the upper disc in a penetrating mode, the outer ring of the bearing is fixedly connected into the upper hole, one end of the rotating shaft is fixedly connected with the center of the lower disc, the other end of the rotating shaft is installed on the inner ring of the bearing, a through hole is formed in the rotating shaft, and the through hole penetrates through the upper disc, the rotating shaft and the lower disc from top to bottom in sequence.

The utility model has the advantages of reasonable and compact structure, through set up second length numerical value marking, draw-in groove, card hole on the ruler, can draw out the circular of specific size, first length numerical value marking on the ruler can directly read out the length dimension by the side graphic, goes up the disc and can take place relative rotation through rotatory subassembly with lower disc, consequently through the angle numerical value marking on the angle datum line on the last disc and the lower disc, just can conveniently measure the angle at a certain angle, the utility model discloses collect ruler, compasses, protractor as an organic whole, simple to use, convenient to carry, do not influence the continuity of teaching in the use, have fine practicality.

Drawings

The specific structure of the application is given by the following figures and examples:

FIG. 1 is a front view of a multifunctional ruler;

fig. 2 is a schematic top view of the multi-functional gauge.

Legend: 1. go up disc, 2, lower disc, 3, ruler, 4, first length numerical value marking, 5, second length numerical value marking, 6, draw-in groove, 7, the card hole, 8, angle datum line, 9, angle numerical value marking, 10, magnet, 11, through-hole, 12, bearing, 13, pivot.

Detailed Description

The present application is not limited to the following examples, and specific implementations may be determined according to the technical solutions and practical situations of the present application.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 in the specification.

The invention will be further described with reference to the following examples and drawings, in which: as shown in attached figures 1 and 2, the multifunctional ruler comprises an upper disc 1, a lower disc 2 and a straight scale 3, wherein the upper disc 1, the lower disc 2 and the straight scale 3 are transparent plates, one side of the straight scale 3 in the length direction is integrally connected with the upper disc 1, the outer edges of the front side and the rear side of the straight scale 3 are respectively provided with a first length value marking 4 and a second length value marking 5, a plurality of arc-shaped clamping grooves 6 which are distributed at intervals are penetratingly arranged on the outer edge of the rear side of the straight scale 3, the chord midpoint of each clamping groove 6 corresponds to a specific second length value marking 5, a plurality of clamping holes 7 which are distributed at intervals are penetratingly arranged on the scale surface of the straight scale 3 between the first length value marking 4 and the second length value marking 5, the circle centers of the clamping holes 7 correspond to the specific second length value marking 5, a rotating assembly is arranged between the upper disc 1 and the lower disc 2, the circle center of the upper disc 1 and the circle center of the lower disc 2 are rotatably, an angle reference line 8 is arranged on the upper disc 1, a circle of angle numerical scale lines 9 is arranged along the circumferential direction of the outer side of the lower disc 2, and at least one magnet 10 is fixedly connected to the lower end face of the lower disc 2.

When a teacher needs to draw a circle on a blackboard, the lower disc 2 can be attracted and stuck on the board surface of the magnetic blackboard through the magnet 10, the ruler 3 is held by one hand, the chalk is held by the other hand and placed in the clamping hole 7 or the clamping groove 6, then the ruler 3 is rotated, a circle with a specific radius can be drawn on the blackboard, the circle can be read through the second length value marking 5, when the angle of a certain angle needs to be measured, only one side of the measured angle needs to be aligned with the angle datum line 8, then the angle datum line 8 is aligned with the other side of the measured angle through rotating the ruler 3, the angle value marking 9 corresponding to the angle datum line 8 is the angle corresponding to the measured angle, and when the length of a certain figure is measured, only the first length value marking 4 on the front side of the ruler 3 needs to be used for reading The compasses and the protractor are integrated, the use is simple, the carrying is convenient, the continuity of teaching is not influenced in the use process, and the compasses and the protractor have good practicability.

According to the actual needs, the multifunctional gauge is further optimized or/and improved: further, as shown in fig. 1 and 2, the multifunctional ruler further comprises a through hole 11, the through hole 11 sequentially penetrates through the upper disc 1, the rotating assembly and the lower disc 2 from top to bottom, and the circle center of the through hole 11 is on the same straight line with the circle centers of the upper disc 1 and the lower disc 2.

Through setting up through-hole 11, can be favorable to the mr before drawing the circle or draw the position of back definite centre of a circle, improve the accuracy of drawing.

Further, according to actual needs, the left side of the ruler 3 is integrally connected with the right side of the upper disc 1, or the right side of the ruler 3 is integrally connected with the left side of the upper disc 1.

In the preparation the utility model discloses the time, both will make ruler 3 and connect the left form in last disc 1, will make ruler 3 and connect the form on last disc 1 right side again, make things convenient for left-handed person or right-handed person to use like this more, also have more the hommization in the design.

Further, as shown in fig. 1 and 2, the rotating assembly includes a bearing 12 and a rotating shaft 13, an upper hole is formed in the center of the upper disc 1 in a penetrating manner, an outer ring of the bearing 12 is fixedly connected in the upper hole, one end of the rotating shaft 13 is fixedly connected with the center of the lower disc 2, the other end of the rotating shaft 13 is installed on an inner ring of the bearing 12, a through hole 11 is formed in the rotating shaft 13, and the through hole 11 sequentially penetrates through the upper disc 1, the rotating shaft 13 and the lower disc 2 from top to bottom.

The rotating assembly can be in other forms besides the form of the rotating shaft 13 and the bearing 12, as long as relative rotation between the upper disc 1 and the lower disc 2 can be realized, for example, the rotating assembly can also be a rotating shaft and an annular flange, the center of the lower disc 2 is provided with an insertion hole in a penetrating manner, one end of the rotating shaft is integrally connected with the center of the upper disc 1, the other end of the rotating shaft penetrates through the insertion hole and is fixedly provided with the annular flange, the outer diameter of the annular flange is larger than that of the insertion hole, and a through hole can be arranged for conveniently determining the position of the circle center and penetrates through the upper disc 1, the rotating shaft and the lower disc 2.

The foregoing description is by way of example only and is not intended as limiting the embodiments of the present application. All obvious variations and modifications of the present invention are within the scope of the present invention.

Claims

1. A multifunctional ruler is characterized by comprising an upper disc, a lower disc and a ruler, wherein the upper disc, the lower disc and the ruler are transparent plates, one side of the ruler in the length direction is integrally connected with the upper disc, outer edges of the front side and the rear side of the ruler are respectively provided with a first length numerical marking and a second length numerical marking, a plurality of arc-shaped clamping grooves distributed at intervals are penetratingly arranged on the outer edge of the rear side of the ruler, the chord midpoint of each clamping groove corresponds to a specific second length numerical marking, a plurality of clamping holes distributed at intervals are penetratingly arranged on the ruler surface of the ruler between the first length numerical marking and the second length numerical marking, the circle centers of the clamping holes correspond to the specific second length numerical marking, a rotating assembly is arranged between the upper disc and the lower disc, and the circle center of the upper disc and the circle center of the lower disc are rotatably installed together through the rotating assembly, an angle datum line is arranged on the upper disc, a circle of angle numerical scale lines are arranged along the circumferential direction of the outer side of the lower disc, and at least one magnet is fixedly connected to the lower end face of the lower disc.

2. The multifunctional ruler of claim 1 further comprising a through hole, wherein the through hole sequentially penetrates through the upper disc, the rotating assembly and the lower disc from top to bottom, and the center of the through hole is aligned with the center of the upper disc and the center of the lower disc.

3. A multi-function gauge according to claim 1, wherein the left side of the straightedge is integrally connected to the right side of the upper disc, or wherein the right side of the straightedge is integrally connected to the left side of the upper disc.

4. A multi-function gauge according to claim 2, wherein the left side of the straightedge is integrally connected to the right side of the upper disc, or wherein the right side of the straightedge is integrally connected to the left side of the upper disc.

5. The multifunctional ruler of claim 4, wherein the rotating assembly comprises a bearing and a rotating shaft, the center of the upper disc is provided with an upper hole through, the outer ring of the bearing is fixedly connected in the upper hole, one end of the rotating shaft is fixedly connected with the center of the lower disc, the other end of the rotating shaft is mounted on the inner ring of the bearing, the through hole is formed in the rotating shaft, and the through hole penetrates through the upper disc, the rotating shaft and the lower disc from top to bottom in sequence.

6. The multifunctional gauge according to claim 1 or 3, wherein the rotating assembly comprises a bearing and a rotating shaft, an upper hole is formed through the center of the upper disc, an outer ring of the bearing is fixedly connected in the upper hole, one end of the rotating shaft is fixedly connected with the center of the lower disc, the other end of the rotating shaft is mounted on an inner ring of the bearing, a through hole is formed in the rotating shaft, and the through hole sequentially penetrates through the upper disc, the rotating shaft and the lower disc from top to bottom.