CN220562443U - Multipurpose ruler for mathematics - Google Patents
Multipurpose ruler for mathematics Download PDFInfo
- Publication number
- CN220562443U CN220562443U CN202321740764.5U CN202321740764U CN220562443U CN 220562443 U CN220562443 U CN 220562443U CN 202321740764 U CN202321740764 U CN 202321740764U CN 220562443 U CN220562443 U CN 220562443U
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- ruler
- sliding groove
- sliding block
- fixed angle
- chute
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- 238000005259 measurement Methods 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 3
- 238000013507 mapping Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a mathematical multipurpose ruler, which solves the problems that the existing mathematical ruler is single in function, a single ruler cannot simultaneously have the functions of drawing a straight line, drawing an arc shape and drawing a circle, and has no angle measurement function. The utility model comprises a fixed angle dial and a rotating disc, wherein the fixed angle dial and the rotating disc are arranged in a concentric circle, the fixed angle dial is provided with angle scales, the fixed angle dial is fixedly provided with a pin shaft, the rotating disc is provided with a slot hole which is penetrated up and down, the pin shaft is rotatably arranged in the slot hole, the rotating disc is made of transparent plastic material, and the rotating disc is provided with pointer scales. According to the utility model, the fixed angle dial is pressed by one hand, the pencil is inserted into the pencil perforation by the other hand, the pencil is rotated, and the pencil rotates along the pin shaft at the circle center of the fixed angle dial through the ruler, the connecting plate and the rotating disc, so that the device can draw an arc shape and a round shape on the basis of drawing a straight line.
Description
Technical Field
The utility model relates to the technical field of teaching aids, in particular to a multipurpose ruler for mathematics.
Background
In mathematical geometry, a ruler is a common and basic tool. It can help students accurately measure the length, angle and size of line segments, and draw straight lines, angles and other geometric figures. The mathematical ruler can be divided into: a ruler, a triangular ruler, a protractor and the like.
Different types of mathematical rules play an important role in mathematical learning and geometric mapping, and they can provide accurate measurement and mapping tools to help us understand and apply mathematics better.
However, the existing mathematical ruler has single function, and a single ruler cannot have the functions of drawing a straight line and drawing an arc shape and is not provided with an angle measurement function.
Disclosure of Invention
The utility model provides a mathematical multipurpose ruler, which aims to solve the problem that the existing mathematical ruler in the background technology is single in function and cannot have the functions of drawing a straight line and drawing an arc shape and a circle at the same time.
The technical scheme of the utility model is as follows: a mathematical multipurpose ruler comprises a fixed angle scale and a rotary disc;
the fixed angle disc and the rotating disc are arranged in concentric circles;
the fixed angle dial is provided with angle scales, and the fixed angle dial is fixedly provided with a pin shaft;
the rotating disc is provided with a slot hole which is penetrated up and down, and the pin shaft is rotatably arranged in the slot hole in a penetrating way;
the rotating disc is made of transparent plastic material, and pointer scales are arranged on the rotating disc;
a connecting plate is fixedly arranged on the peripheral surface of the rotating disc, a ruler extending along the left-right direction is fixedly arranged at one end of the connecting plate, which is far away from the rotating disc, a first linear scale is arranged on the ruler, the first linear scale is positioned at the edge of the ruler, and the first linear scale is a measurement scale extending from right to left;
the straight ruler is provided with a chute structure extending along the left-right direction, the chute structure is an up-down through structure, and a sliding block component capable of moving left and right is arranged in the chute structure;
the sliding block component is provided with a pencil through hole which penetrates up and down;
the sliding block component is provided with a locking mechanism which is used for fixing the relative positions of the sliding block component and the ruler.
Preferably, the chute structure comprises a first chute, a second chute and a third chute which are arranged on the ruler, and the first chute, the second chute and the third chute extend along the left-right direction;
the upper part of the second chute is of an opening structure, the lower part of the second chute is communicated with the first chute, and the chute width of the second chute is smaller than that of the first chute;
the sliding block component comprises a first sliding block which is arranged in the first sliding groove in a sliding way, a second sliding block is fixedly arranged on the first sliding block, and a pencil through hole which penetrates up and down is formed in the second sliding block;
the second sliding block is arranged in the second sliding groove in a sliding way, and the top end of the second sliding block is flush with the upper part of the ruler.
Preferably, the locking mechanism comprises a thread groove formed in the first sliding block, the thread groove is through up and down, a threaded rod in threaded connection is arranged in the thread groove in a penetrating mode, a rotating handle is fixedly arranged at the top end of the threaded rod, and the diameter of the rotating handle is larger than the groove width of the second sliding groove;
the screw rod is used for fixing the rotating handle on the ruler.
Preferably, the fixed angle disc and the pin shaft are provided with positioning holes which are penetrated up and down, and the positioning holes, the fixed angle disc and the rotating disc are arranged in concentric circles.
Preferably, the lower part of the third chute is of an opening structure, the upper part of the third chute is communicated with the first chute, the width of the third chute is smaller than that of the first chute, and the width of the third chute is equal to the diameter of the pencil perforation.
Preferably, a second linear scale is arranged on the ruler, and the second linear scale is a measurement scale which extends rightwards by taking the positioning hole as a starting point.
The utility model has the advantages that: be equipped with the ruler in this device, offered first straight line scale on the ruler and made it drawing straight line that can be accurate, pressed fixed angle scale through the single hand, the pencil is inserted into the pencil perforation to another hand, rotatory pencil, and the pencil passes through ruler, connecting plate and rotation disc and rotates along the round pin axle of fixed angle scale centre of a circle department, makes this device can also draw arc, circular under possessing the basis of drawing straight line.
When the device is used for drawing an arc, the arc with an angle can be accurately drawn by observing the position of the pointer scale on the rotating disc on the fixed angle disc.
Through remove the slider component along spout structure, the rethread locking mechanism is fixed the relative position of slider component and ruler, has realized adjusting the purpose of pencil perforation position, has changed the distance between pencil perforation and the fixed angle dish heart, can change according to the demand and draw arc, circular shape radius, has improved the practicality of device.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a multipurpose ruler for mathematics according to the present utility model;
FIG. 2 is an exploded view of the fixed angle dial of the present utility model;
FIG. 3 is a schematic view of the structure of the inventive ruler;
fig. 4 is a structural cross-sectional view of the stem of the present utility model.
In the figure: 1. fixing an angle scale; 2. a pin shaft; 3. rotating the disc; 301. positioning holes; 4. an angle scale; 5. a pointer scale; 6. a connecting plate; 7. a ruler; 8. a first line scale; 9. a second linear scale; 101. a first chute; 102. a second chute; 103. a third chute; 11. a first slider; 12. a second slider; 13. punching a pencil; 14. a screw; 15. a rotating handle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
Example 1: 1-4, the multipurpose ruler comprises a fixed angle dial 1 and a rotary disc 3, wherein the fixed angle dial 1 and the rotary disc 3 are arranged in concentric circles; the fixed angle scale 1 is provided with an angle scale 4, and the fixed angle scale 1 is fixedly provided with a pin shaft 2; the rotating disc 3 is provided with a slot hole which is penetrated up and down, and the pin shaft 2 is rotatably arranged in the slot hole in a penetrating way; the rotating disc 3 is provided with the pointer scale 5, and the rotating disc 3 is made of transparent plastic material, so that the position of the pointer scale 5 on the fixed angle scale 1 can be clearly observed; the fixed connecting plate 6 that is equipped with on the outer peripheral face of rotating disc 3, the one end that rotating disc 3 was kept away from to connecting plate 6 is fixed to be equipped with along the ruler 7 of controlling the orientation extension, has seted up first straight line scale 8 on the ruler 7, and first straight line scale 8 is located the edge of ruler 7, and first straight line scale 8 is the measurement scale that extends from right left, and first straight line scale 8 can make ruler 7 carry out length measurement and accurate drawing straight line.
The ruler 7 is provided with a chute structure extending along the left-right direction, the chute structure is an up-down through structure, and a sliding block component capable of moving left and right is arranged in the chute structure; the sliding block component is provided with a pencil through hole 13 which penetrates up and down; the slider member is provided with a lock mechanism for fixing the relative positions of the slider member and the ruler 7.
As shown in fig. 3 and 4, the chute structure includes a first chute 101, a second chute 102, and a third chute 103 that are provided on the ruler 7, and the first chute 101, the second chute 102, and the third chute 103 all extend in the left-right direction; the upper part of the second sliding groove 102 is of an opening structure, the lower part of the second sliding groove 102 is communicated with the first sliding groove 101, and the groove width of the second sliding groove 102 is smaller than that of the first sliding groove 101; the sliding block component comprises a first sliding block 11 which is arranged in a first sliding groove 101 in a sliding way, a second sliding block 12 is fixedly arranged on the first sliding block 11, and a pencil through hole 13 which penetrates up and down is formed in the second sliding block 12; the second slide block 12 is slidably arranged in the second slide groove 102, and the top end of the second slide block 12 is flush with the upper side of the ruler 7.
As shown in fig. 3 and 4, the locking mechanism comprises a thread groove formed in the first slider 11, the thread groove is through up and down, a threaded rod 14 in threaded connection is arranged in the thread groove in a penetrating manner, a rotating handle 15 is fixedly arranged at the top end of the threaded rod 14, and the diameter of the rotating handle 15 is larger than the groove width of the second sliding groove 102; the screw 14 is used to fix the knob 15 to the ruler 7.
As shown in fig. 1 and 2, the fixed angle disc 1 and the pin shaft 2 are provided with positioning holes 301 penetrating from top to bottom, the positioning holes 301, the fixed angle disc 1 and the rotating disc 3 are arranged in concentric circles, and the circle center can be conveniently positioned when a circle or an arc is drawn through the positioning holes 301.
As shown in fig. 3 and 4, the lower part of the third sliding groove 103 is in an opening structure, the upper part of the third sliding groove 103 is communicated with the first sliding groove 101, the groove width of the third sliding groove 103 is smaller than that of the first sliding groove 101, and the groove width of the third sliding groove 103 is equal to the diameter of the pencil through hole 13.
The third sliding groove 103 is aligned with one side of the angle by overlapping the intersection point of the positioning hole 301 and the angle, then the fixed angle scale 1 is pressed, the rotary ruler 7 aligns the third sliding groove 103 with the other side of the angle, then the position of the pointer scale 5 of the rotary disc 3 on the fixed angle scale 1 is observed, the degree of the angle can be measured, and the device has the function of angle measurement.
As shown in fig. 1 and 2, a second linear scale 9 is provided on the ruler 7, and the second linear scale 9 is a measurement scale extending rightward from the positioning hole 301.
The second straight line scale 9 is located pencil perforation 13 edge, and the arc is drawn to the regulation that the second straight line scale 9 can make the device more accurate, circular shape radius, and has seted up the scale mark on the second slider 12, and the scale mark passes the centre of a circle of pencil perforation 13, is on a parallel with second straight line scale 9, is convenient for more accurate regulation pencil perforation 13's position.
Working principle: be equipped with ruler 7 in this device, set up first straight line scale 8 on the ruler 7 and make it can be accurate draw straight line, press fixed angle scale 1 through the single hand, the pencil is inserted pencil perforation 13 with the pencil to the other hand, rotatory pencil, the pencil is rotatory along the round pin axle 2 of fixed angle scale 1 centre of a circle department through ruler 7, connecting plate 6 and rotating disc 3, make this device can also draw arc, circular under possessing the basis of drawing straight line, when drawing the arc, through observing the position of pointer scale 5 on rotating disc 3 on fixed angle scale 1, the arc that has the angle can be accurate be drawn.
Through second slider 12 and first slider 11 in the sliding block component along the spout structure, then rotatory runner 15, runner 15 drives screw rod 14 rotation, and runner 15 removes to ruler 7 one side and mutual extrusion is fixed with ruler 7, and runner 15 is fixed second slider 12 and first slider 11 through screw rod 14 simultaneously, has realized adjusting the purpose of pencil perforation 13 position, has changed the distance between pencil perforation 13 and the fixed angle scale 1 centre of a circle, can change drawing arc, circular radius according to the demand.
The third sliding groove 103 is aligned with one side of the angle by overlapping the intersection point of the positioning hole 301 and the angle, then the fixed angle scale 1 is pressed, the rotary ruler 7 aligns the third sliding groove 103 with the other side of the angle, then the position of the pointer scale 5 of the rotary disc 3 on the fixed angle scale 1 is observed, the degree of the angle can be measured, and the device has the function of angle measurement.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A multipurpose ruler for mathematics, which is characterized in that: comprises a fixed angle disc (1) and a rotary disc (3);
the fixed angle disc (1) and the rotary disc (3) are arranged in concentric circles;
an angle scale (4) is arranged on the fixed angle scale (1), and a pin shaft (2) is fixedly arranged on the fixed angle scale (1);
the rotating disc (3) is provided with a through slot hole from top to bottom, and the pin shaft (2) is rotatably arranged in the slot hole in a penetrating way;
the rotating disc (3) is made of transparent plastic, and pointer scales (5) are arranged on the rotating disc (3);
a connecting plate (6) is fixedly arranged on the outer peripheral surface of the rotating disc (3), a ruler (7) extending along the left-right direction is fixedly arranged at one end, far away from the rotating disc (3), of the connecting plate (6), a first linear scale (8) is arranged on the ruler (7), the first linear scale (8) is positioned at the edge of the ruler (7), and the first linear scale (8) is a measuring scale extending from right to left;
a sliding groove structure extending along the left-right direction is arranged on the ruler (7), the sliding groove structure is of an up-down through structure, and a sliding block component capable of moving left and right is arranged in the sliding groove structure;
the sliding block component is provided with a pencil perforation (13) which is penetrated up and down;
the sliding block component is provided with a locking mechanism which is used for fixing the relative positions of the sliding block component and the ruler (7).
2. A multipurpose mathematical ruler as claimed in claim 1, wherein: the chute structure comprises a first chute (101), a second chute (102) and a third chute (103) which are arranged on the ruler (7), wherein the first chute (101), the second chute (102) and the third chute (103) extend along the left-right direction;
the upper part of the second sliding groove (102) is of an opening structure, the lower part of the second sliding groove (102) is communicated with the first sliding groove (101), and the groove width of the second sliding groove (102) is smaller than that of the first sliding groove (101);
the sliding block component comprises a first sliding block (11) which is arranged in the first sliding groove (101) in a sliding way, a second sliding block (12) is fixedly arranged on the first sliding block (11), and a pencil through hole (13) which penetrates up and down is formed in the second sliding block (12);
the second sliding block (12) is arranged in the second sliding groove (102) in a sliding way, and the top end of the second sliding block (12) is flush with the upper part of the ruler (7).
3. A multipurpose mathematical ruler as claimed in claim 1 or claim 2, wherein: the locking mechanism comprises a thread groove which is formed in the first sliding block (11), the thread groove is through up and down, a threaded rod (14) in threaded connection is arranged in the thread groove in a penetrating mode, a rotating handle (15) is fixedly arranged at the top end of the threaded rod (14), and the diameter of the rotating handle (15) is larger than the groove width of the second sliding groove (102);
the screw (14) is used for fixing the rotary handle (15) on the ruler (7).
4. A multipurpose mathematical ruler as claimed in claim 1, wherein: the fixed angle dial (1) and the pin shaft (2) are provided with positioning holes (301) which are vertically transparent, and the positioning holes (301), the fixed angle dial (1) and the rotating disc (3) are arranged in concentric circles.
5. A multipurpose mathematical ruler as claimed in claim 1 or claim 2, wherein: the lower part of the third sliding groove (103) is of an opening structure, the upper part of the third sliding groove (103) is communicated with the first sliding groove (101), the groove width of the third sliding groove (103) is smaller than that of the first sliding groove (101), and the groove width of the third sliding groove (103) is equal to the diameter of the pencil through hole (13).
6. A multipurpose mathematical ruler as claimed in claim 1 or 4, wherein: a second linear scale (9) is arranged on the ruler (7), and the second linear scale (9) is a measurement scale which extends rightwards by taking the positioning hole (301) as a starting point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321740764.5U CN220562443U (en) | 2023-07-05 | 2023-07-05 | Multipurpose ruler for mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321740764.5U CN220562443U (en) | 2023-07-05 | 2023-07-05 | Multipurpose ruler for mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220562443U true CN220562443U (en) | 2024-03-08 |
Family
ID=90095692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321740764.5U Active CN220562443U (en) | 2023-07-05 | 2023-07-05 | Multipurpose ruler for mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220562443U (en) |
-
2023
- 2023-07-05 CN CN202321740764.5U patent/CN220562443U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |