CN210283691U

CN210283691U - Folder for mathematics

Info

Publication number: CN210283691U
Application number: CN201920605340.5U
Authority: CN
Inventors: 王立军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-04-10
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses a file for mathematics belongs to the office tool field, and its structure includes: semi-annular panel, left splint, side board and right splint, wherein: the both sides of side board are connected fixedly with left splint and right splint respectively, left splint connect fixed semi-ring shape panel again, two rotatory rulers of centre of a circle department warp beam axle center activity fixed of semi-ring shape panel, be equipped with the slot on the interior limit of semi-ring shape panel, the slot extends to left splint, constitute a circular slot on side board and the right splint, the end of two rotatory rulers is fixed and is made rotatory ruler can be individual circle at circular slot internal motion and motion trail at circular slot, be equipped with the loose-leaf binder on the splint of the right side, the fixed straight chi board in outside of side board, the straight chi board is rotatable to the side panel. The utility model discloses can carry teaching aids such as textbook, teaching plan and ruler, clock and watch on class and combine teaching aid as an organic whole, convenient to carry uses portably.

Description

Folder for mathematics

Technical Field

The utility model relates to an office tool technical field especially relates to a file for mathematics.

Background

Primary school mathematics teacher often draws pictures in class for easy understanding of students, and explains some clock knowledge through clock or clock. Therefore, teachers need to carry teaching aids such as textbooks, teaching plans, various rulers or clocks and the like during class practice, and the teaching aids are complex. In addition, each teaching aid needs to be taken out one by one when the teaching aid is used, so that the workload is increased, and the teaching quality is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve existing problem and provide a file for mathematics, can carry teaching aids such as textbook, teaching plan and ruler, clock and watch on class and combine as an organic whole, convenient to carry uses portably.

The utility model provides a technical scheme that its technical problem adopted does:

a mathematical file comprising: semi-annular panel, left splint, side board and right splint, wherein: the both sides of side board are connected fixedly with left splint and right splint respectively, the radius of connecting fixed semi-ring panel and semi-ring panel again and the wide unanimity with the width of right splint of left splint, the centre of a circle of semi-ring panel is located the long midpoint in the left side of left splint, the centre of a circle department of semi-ring panel is through two fixed rotary ruler of axle center activity, be equipped with the slot on the interior limit of semi-ring panel, constitute a circular slot on the slot extension to left splint, side board and the right splint, the end of two rotary ruler is fixed and is made rotary ruler move and the movement track be a circle in circular slot, be equipped with the loose-leaf binder on the splint of the right side, the fixed ruler board in the outside of side board, ruler board is rotatable to the side panel.

Further preferably, the annular panel is provided with angle scales.

Further preferably, an L-shaped fixing block is arranged on the annular panel through a rotating shaft, and a stop block is arranged at the end of the L-shaped fixing block and used for fixing the annular panel and the right clamping plate.

Further preferably, the height of the fixed block is consistent with the width of the ruler plate.

Further preferably, a clock scale is arranged at the edge of the circular groove.

It is further preferred that the two rotary rules do not have the same width for discrimination.

Further preferably, length scales are arranged on the ruler plate.

Further preferably, be equipped with the rectangular channel in the ruler board, the frame is equipped with the slide in the two limits of rectangular channel, is equipped with the slider in the slide and makes the slider can follow the balanced slip of slide, be equipped with the chalk hole in the slider.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model provides a pair of file for mathematics is equipped with annular panel on splint to have the rotation chi, can directly be used for making the sector drawing, be equipped with the angle scale on the annular panel, it is clear, the mapping is accurate.

2. The utility model provides a pair of file for mathematics increases circular slot and is equipped with the clock scale in the edge of circular slot, and rotatory chi is located circular slot for a clock model is constituteed with circular slot to rotatory chi, can conveniently carry out the understanding study of clock and watch show and clock and watch, and the width nonconformity of two rotatory chi is used for distinguishing hour hand and minute hand, the discernment of being convenient for.

3. The utility model provides a pair of file for mathematics is equipped with L type fixed block through the pivot on the annular panel, and the end of L type fixed block is equipped with the dog for it is fixed with right splint to fix the annular panel, prevents to use the file to deposit landing when books such as teaching notes.

4. The utility model provides a pair of file for mathematics, need expand the file half ring panel parallel with the blackboard when making fan-shaped picture, then by rotatory chi and the fan-shaped picture of half ring panel preparation again, owing to be equipped with the ruler board on the side board, the height of fixed block is unanimous with the width of ruler board, is convenient for be parallel with half ring panel and blackboard.

5. The utility model provides a pair of file for mathematics is equipped with the rectangular channel in the ruler inboard, and the frame is equipped with the slide in the two sides of rectangular channel, is equipped with the slider in the slide and makes the slider can follow the balanced slip of slide, is equipped with the chalk hole in the slider, and the straight line of being convenient for to draw and chalk bits can not stay on the file.

6. The utility model provides a pair of file for mathematics both can make tangent line picture, sector diagram can also be used to the use of clock and watch model, can also hold books such as teaching notes, and the function is various, convenient to use, labour saving and time saving, improves teaching efficiency.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is an expanded schematic view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a view of the utility model;

FIG. 4 is a cross-sectional view of a fixation block;

in the figure: 1 is the semi-annular panel, 2 is the angle scale, 3 is the rotation chi, 4 is left splint, 5 is the axle center, 6 is the side board, 7 is right splint, 8 is the loose-leaf binder, 9 is circular slot, 10 is the clock scale, 11 is the ruler board, 12 is the rectangular channel, 13 is the chalk hole, 14 is the slider, 15 is the fixed block, 16 is the pivot, 17 is the dog.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

As shown in fig. 1 to 4, the present embodiment provides a math folder including: semi-annular panel 1, left splint 4, side panel 6 and right splint 7, wherein: two sides of the side panel 6 are respectively connected and fixed with a left clamping plate 4 and a right clamping plate 7, the left clamping plate 4 is connected and fixed with a semi-annular panel 1, the radius of the semi-annular panel is consistent with the width of the left clamping plate 4 and the width of the right clamping plate 7, the circle center of the semi-annular panel 1 is positioned on the middle point of the left side length of the left clamping plate 4, the center of the semi-annular panel 1 is movably fixed with two rotary rulers 3 through an axis 5, the inner edge of the semi-annular panel 1 is provided with a groove, the groove is extended to the left clamping plate 4, the side plate 6 and the right clamping plate 7 to form a circular groove 9, the ends of the two rotary rulers 3 are fixed in the circular groove 9, so that the rotary rulers 3 can move in the circular groove 9 and the movement track is a circle, the right clamping plate 7 is provided with a loose-leaf binder 8, a ruler plate 11 is fixed outside the side panel 6, and the ruler plate 11 can rotate relative to the side panel 6.

In this embodiment, the semi-annular panel 1 is provided with angle scales 2.

In this embodiment, an L-shaped fixing block 15 is disposed on the semi-annular panel 1 via a rotating shaft 16, and a stopper 17 is disposed at an end of the L-shaped fixing block 15 and used for fixing the semi-annular panel 1 to the right clamping plate 7.

In this embodiment, the height h of the fixing block 15 is equal to the width of the ruler plate 11.

In this embodiment, a clock scale 10 is disposed at the edge of the circular groove 9.

In the present embodiment, the widths of the two rotary rulers 3 are not uniform for the purpose of distinction.

In this embodiment, the ruler plate 11 is provided with length scales.

In this embodiment, the ruler plate and the side panel are connected by soft rubber.

In this embodiment, be equipped with rectangular channel 12 in the ruler board 11, two interior borders of rectangular channel 12 are equipped with the slide, are equipped with slider 14 in the slide to make slider 14 can follow the balanced slip of slide, be equipped with chalk hole 13 in the slider 14.

When the file folder is used, when a straight line is manufactured, the file folder is closed, chalk is placed in the chalk hole 13 in the sliding block 14 through the ruler plate 11 on the side panel 6, and the sliding block 14 is moved in the chalk hole 13, so that a straight line graph can be formed, and the file folder is accurate and convenient; when the sector is manufactured, the folder is opened, the fixing block 15 and the straight ruler plate 11 are rotated, the fixing block 15 and the straight ruler plate 11 are enabled to be parallel to the semi-annular panel 1, the semi-annular panel 1 is placed on the blackboard, the semi-annular panel 1 is enabled to be parallel to the blackboard, the rotating ruler 3 is rotated according to needs, and an annular picture can be manufactured through the rotating ruler 3 and the inner edge of the semi-annular panel 1; when the clock demonstration is needed, the semi-annular panel 1 is placed on the blackboard, the left clamping plate 4, the side panel 6 and the right clamping plate 7 are unfolded, the demonstration is carried out through the circular groove 9, the two rotary rulers 3 and the clock scale 10, and the thickness design of the two rotary rulers 3 is different for distinguishing the hour hand and the minute hand; when holding textbooks, teaching notes, with the textbook teaching notes clip on the loose-leaf binder to rotate the fixed block 15 on the semi-annular panel 1 and press right splint 17 with dog 17, it is fixed firm, prevent that the interior thing landing of file. The utility model discloses both can make tangent line picture, sector diagram can also be used to the use of clock and watch model, can also hold books such as teaching notes, the function is various, convenient to use except that the description technical characteristic outside, all the other technical characteristics are technical personnel's known technology in the field, for outstanding the utility model discloses an innovative characteristics, all the other technical characteristics are no longer repeated here. In summary, the above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the specification of the present invention should still belong to the scope covered by the present invention.

Claims

1. A mathematical file comprising: semi-annular panel (1), left splint (4), side board (6) and right splint (7), its characterized in that: the two sides of the side panel (6) are respectively connected and fixed with the left clamping plate (4) and the right clamping plate (7), the left clamping plate (4) is connected and fixed with the semi-annular panel (1), the radius of the semi-annular panel is consistent with the width of the left clamping plate (4) and the width of the right clamping plate (7), the circle center of the semi-annular panel (1) is positioned at the middle point of the left side length of the left clamping plate (4), the circle center of the semi-annular panel (1) is movably fixed with the two rotary rulers (3) through the axis (5), the inner edge of the semi-annular panel (1) is provided with a groove, the groove is extended to the left clamping plate (4), the side panel (6) and the right clamping plate (7) to form a circular groove (9), the ends of the two rotary rulers (3) are fixed in the circular groove (9) to enable the rotary rulers (3) to move in the circular groove (9) and the movement track to be a circle, the hinge clamp (8) is arranged on, and a ruler plate (11) is fixed outside the side panel (6), and the ruler plate (11) can rotate relative to the side panel (6).

2. A mathematical file as defined in claim 1, wherein: and angle scales (2) are arranged on the semi-annular panel (1).

3. A mathematical file as defined in claim 1, wherein: an L-shaped fixing block (15) is arranged on the semi-annular panel (1) through a rotating shaft (16), and a stop block (17) is arranged at the end of the fixing block (15).

4. A mathematical file as defined in claim 3, wherein: the height of the fixed block (15) is consistent with the width of the ruler plate (11).

5. A mathematical file as defined in claim 1, wherein: and clock scales (10) are arranged at the edge of the circular groove (9).

6. A mathematical file as defined in claim 1, wherein: the widths of the two rotary rulers (3) are different.

7. A mathematical file as defined in claim 1, wherein: the ruler plate (11) is provided with length scales.

8. A mathematical file as defined in claim 1, wherein: be equipped with rectangular channel (12) in ruler board (11), two interior borders of rectangular channel (12) are equipped with the slide, are equipped with slider (14) in the slide and make slider (14) can follow the slide balanced slip, be equipped with chalk hole (13) in slider (14).