CN115958910A - Multifunctional ruler and using method thereof - Google Patents

Abstract

The invention provides a multifunctional ruler and a using method thereof, and relates to the technical field of stationery. The utility model provides a multifunctional ruler, its characterized in that, including lower rule and the last chi that length and width are the same, the bolt and locate the locking piece of bolt, the lower rule is equipped with protractor scale, first straight line scale, the pivot, first spacing hole and bolt hole, the upper ruler is equipped with second straight line scale, the spacing hole of second, the bolt spout, mounting hole and datum line, 0 scale mark of protractor scale passes the centre of a circle of pivot and is parallel with the chi limit, the datum line passes the centre of a circle of mounting hole and is parallel with the chi limit. This multi-functional ruler can measure the angle of an contained angle and the distance of contained angle both sides length simultaneously, when the angle of portrayal, only need use an instrument just can accomplish the angle portrayal simultaneously, improves the precision of the angle of portrayal, can also directly use this multi-functional ruler to realize drawing a circle and supplementary user understanding and geometry right angle triangle's sin, cos, tan etc..

Description

Multifunctional ruler and using method thereof

Technical Field

The invention relates to the technical field of stationery, in particular to a multifunctional ruler and a using method thereof.

Background

The length ruler and the protractor are one of the most common measuring tools in daily life, and are the measuring tools used most. After investigation, many manufacturers in the market design the appearance of the length scale or the protractor, but there are few measuring tools having the functions of both the length scale and the protractor. In the market, only basic linear length measurement is provided, the requirements of the masses of users cannot be met, and more measurement is performed from the aspect design, but the measurement tools which really solve the use problems are few, the measurement tools with prominent functions are lacked, and the drawing requirements of users in the current society cannot be met.

In the course of teaching mathematics, drawing is a basic teaching course. At present, the angle is often carved by combining set squares, measuring points by using a protractor or by combining other measuring and drawing tools, and then the required angle can be carved. No matter what way is adopted to depict the angle, a plurality of steps are required to be distributed to complete the depicting of the angle, and the depicting steps of the angle are complicated. Because a plurality of tools are mutually matched or a plurality of steps are adopted to finish angle depicting, the step replacement and the tool replacement in the depicting process inevitably influence the accuracy of the angle, and the precision of the depicting angle is not high.

Disclosure of Invention

The invention aims to provide a multifunctional ruler, which can be used for simultaneously measuring the angle of an included angle and the distance between the lengths of two sides of the included angle, and can be used for finishing angle engraving by only using one tool when engraving the angle, so that the accuracy of the angle engraving is improved.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a multifunctional ruler, it includes length and the equal same lower rule of width and last chi, bolt and locate the locking piece of bolt, and the lower rule is equipped with protractor scale, first straight line scale, pivot, first spacing hole and bolt hole, goes up the chi and is equipped with the spacing hole of second straight line scale, second, bolt spout, mounting hole and datum line.

The bolt head is the circular cone shape, and the lower ruler is equipped with the standing groove with bolt head adaptation, and the centre of a circle of protractor scale is located to the pivot, and 0 scale mark of protractor scale is located the lower level of lower ruler, and the datum line is located the lower level of upper ruler, and 0 scale mark of protractor scale passes the centre of a circle of pivot and is parallel with the chi limit, and the datum line passes the centre of a circle of mounting hole and is parallel with the chi limit.

In some embodiments of the invention, when an angle is to be drawn, the body is placed on the page by rotating the upper rule relative to the lower rule so that a predetermined angle is formed between the upper rule and the lower rule, and the angle is drawn by a pen directly along the edge of the body.

In some embodiments of the invention, when the drawing of an equilateral geometric figure is to be performed repeatedly by drawing a fixed angle or by moving and rotating the fixed angle, the upper ruler is rotated relative to the lower ruler to form a target angle between the lower ruler and the upper ruler.

Pass the bolt in proper order through rotatory locking piece, make locking piece and last chi butt, bolt head embedding standing groove this moment, inwards extrude through bolt head and locking piece, with the frictional force between this increase upper ruler and the lower rule, through pivot embedding mounting hole, and the inseparable butt of mounting hole and pivot, frictional force between increase mounting hole and the pivot, further strengthen the frictional force between upper ruler and the lower rule, make upper ruler and lower rule relatively fixed, with this fixed angle of repeated drawing or through removing and this fixed angle completion equilateral geometry drawing.

In some embodiments of the invention, the reference line of the upper scale coincides with the 90 ° graduation line of the lower scale. The first linear scale is formed by extending the cross edge of the lower ruler body to the non-overlapping direction at the cross point of the two ruler edges, adding 0.5 mm to form a 0 scale, and extending towards the direction. The second straight line scale is 0 scale by 0.5 mm along the cross side of the upper ruler body in the non-overlapping direction at the cross point of the two ruler sides, and 0.5 mm is added in the direction in an extending way, which is beneficial to reducing the error of the length of the carving caused by the size of the pen point.

The first straight line scale and the second straight line scale are helpful for learning and understanding tan, cot, sin and cos geometrical knowledge when crossing at 90 degrees.

In some embodiments of the present invention, when a circle needs to be drawn, the distance between the first limiting hole and the second limiting hole is adjusted by adjusting the angle between the lower rule and the upper rule, and the distance between the first limiting hole and the second limiting hole is the length of the radius of the circle.

After the distance between the first limiting hole and the second limiting hole is adjusted, the lower ruler and the upper ruler are relatively fixed through the rotating locking piece, one pen is inserted into any one limiting hole, the corresponding ruler body is fixed as the circle center, the other pen is inserted into the other limiting hole, and the other limiting hole is driven to rotate through the moving pen point, so that the drawing of a circle is completed.

In some embodiments of the present invention, when drawing a circle, the first limiting hole is provided at a position close to the first linear scale of the lower ruler, and the second limiting hole is provided at a position close to the second linear scale of the upper ruler, and when the upper ruler is rotated relative to the lower ruler, the first limiting hole and the second limiting hole can be overlapped, so that a circle with a smaller diameter can be drawn.

The first limiting hole and the second limiting hole are arranged in the middle of the corresponding ruler body, so that the resistance on two sides of the lower ruler and the resistance on two sides of the upper ruler are balanced, and labor is saved during drawing.

In some embodiments of the invention, when the error needs to be reduced, the diameters of the first limiting hole and the second limiting hole are set to be the same as the diameters of most pen points, so that the pen points are prevented from shaking when drawing a circle, and the error is prevented.

In some embodiments of the invention, when the error needs to be reduced, the upper ruler is set to be a flexible ruler, so that the upper ruler can be pressed to be abutted with the drawing or measuring plane when in use, and the error is reduced.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the embodiment of the application provides a multifunctional ruler, including the lower rule and the upper ruler that rotate mutually and connect, lower rule one side is equipped with the protractor scale, and the lower rule opposite side is equipped with first straight line scale along lower rule extending direction, and the upper ruler is equipped with second straight line scale along upper ruler extending direction.

The rotating circle center of the upper ruler coincides with the circle center of the protractor scales, when the lower ruler coincides with the upper ruler, the first linear scales are arranged on one side above the lower ruler, and the second linear scales are arranged on one side below the upper ruler.

The lower rule left side of this embodiment is equipped with the protractor scale, and this protractor scale constitution semicircle just will evenly fall into 180 contained angles along this semicircle, and the centre of a circle of this semicircle is located the latter half of lower rule, and wherein 90 scale mark extend to with 0 scale extension line and 180 scale extension line link to each other perpendicularly.

The upper side of the right side of the lower ruler is provided with a first linear scale, the length of the first linear scale is 16cm, the first linear scale is evenly divided into 16 sections, the starting point of the first linear scale coincides with the 90-degree scale mark of the protractor scale, and the protractor scale is displayed and hidden in the coinciding part of the protractor scale and the first linear scale.

The lower part of the upper ruler of the embodiment is provided with a second straight-line scale, the length of the second straight-line scale is 13.5cm, and the second straight-line scale is evenly divided into 13.5 parts.

The lower ruler and the upper ruler of the embodiment are made of transparent materials, numerical marks are arranged on the protractor scales at intervals of 10 degrees, and numerical marks are arranged on the first straight line scales and the second straight line scales at intervals of 1 cm.

When the square edge is measured, the upper ruler is rotated to be vertically placed with the lower ruler, and the starting point of the second straight-line scale is coincided with the edge of the lower ruler. Perpendicular the formation right angle and two cathetuses of placing through last chi and lower rule to this is used for measuring the length of other geometric figure's two cathetuses through the scale on two cathetuses.

When measuring non-right-angle sides, for other angles of the geometric figure and the side length thereof, the angle of the included angle of the geometric figure can be measured through the protractor scale.

When the polygon needs to be drawn, one side is drawn first, the angle between the lower ruler and the upper ruler is adjusted, then the second side is drawn, the process is repeated, and the polygon is drawn through continuous edge drawing.

When not using, rotatory upper ruler makes upper ruler and lower rule coincide, so can reduce the area of this multi-functional ruler to this is convenient for accomodate and place.

The invention aims to provide a multifunctional ruler, which can realize the simultaneous measurement of the angle of an included angle and the distance between the lengths of two sides of the included angle by using the equipment, and can finish angle carving by using only one tool when the angle is carved, thereby improving the precision of the angle carving.

The upper half part of the bolt is of a conical structure, the back surface of the lower ruler is provided with a placing groove matched with the upper half part of the bolt, and the upper half part of the bolt can be completely embedded into the placing groove, so that the back surface of the lower ruler forms a plane. The multifunctional ruler body can be named as a ghost ruler.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a front view of a multifunctional ruler according to an embodiment of the present invention.

Fig. 2 is a front view of a lower rule provided by an embodiment of the present invention.

Fig. 3 is a front view of the upper ruler provided by the embodiment of the invention.

Fig. 4 is a front view of a latch assembly provided by an embodiment of the present invention.

Fig. 5 is a cross-sectional view of a locking assembly provided in an embodiment of the invention, taken along the axial direction of the bolt.

Icon: 1-lower rule, 2-upper rule, 3-protractor scale, 4-first straight line scale, 5-second straight line scale, 6-rotating shaft, 7-mounting hole, 8-locking piece, 9-bolt sliding groove, 10-bolt, 11-0 scale mark, 12-datum line, 13-first limiting hole, 14-second limiting hole and 15-positioning block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on an orientation or a positional relationship shown in the drawings, or an orientation or a positional relationship which is usually arranged when the product of the present invention is used, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the indicated element or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

Referring to fig. 1 to 5, in the present embodiment, when an angle of 60 ° needs to be drawn, the upper ruler 2 is rotated relative to the lower ruler 1, so that the reference line 12 of the upper ruler 2 is rotated to coincide with 60 ° of the protractor scale 3 of the lower ruler 1, the upper ruler 2 is pressed by one hand, so that the upper ruler 2 abuts against a drawing plane, the other hand holds a pen to draw along a space between the lower edge of the upper ruler 2 and the upper edge of the lower ruler 1, thereby forming an angle of 60 °, and so on.

Example 2

Referring to fig. 1 to 5, in this embodiment, when a circle with a radius of two cm needs to be drawn, two positioning points with a distance of 2cm are measured on a paper surface by using the lower ruler 1 or the upper ruler 2, one of the positioning points is selected as a circle center, the positioning point is placed in the first limiting hole 13 of the lower ruler 1, after the positioning point is fixed by a pen tip, the first limiting hole 13 is aligned with the other positioning point, the locking member 8 is rotated to enable the locking member 8 to be close to the end of the bolt 10, so that the pressure between the upper ruler 2 and the lower ruler 1 is increased, the friction between the rotating shaft 6 and the mounting hole 7 is added, the upper ruler 2 and the lower ruler 1 are relatively fixed, the other pen tip is inserted into the second limiting hole 14, the multifunctional ruler body is rotated relative to the first limiting hole 13, and the other pen tip inserted into the second limiting hole 14 is driven to rotate, so that a circle with a radius of 2cm is drawn, and circles with other radii are drawn.

Example 3

Referring to fig. 1 to 5, in the present embodiment, when a student needs to understand sin60 °, cos60 °, tan60 °, and cot6 ° 0, the student rotates the upper ruler 2 relative to the lower ruler 1, so that the reference line 12 coincides with 90 ° of the protractor scale 3 of the lower ruler 1, a 3cm side can be drawn along the second linear scale 5 of the upper ruler 2, and a 3cm side can be drawn along the first linear scale 4 of the lower ruler 1, so as to draw two right-angled sides, connect two ends of the two right-angled sides, and draw a right triangle, and measure a hypotenuse of the right triangle by using the first linear scale or the second linear scale, so that the hypotenuse can be found to be 6cm, thereby facilitating the student to understand sin60 °, cos60 °, tan60 °, and cot60 °, understand other angles, and so on.

Example 4

Referring to fig. 1 to 5, in the present embodiment, when a regular hexagon with a side length of 3cm needs to be drawn, the lower ruler 1 is placed on a plane, the upper ruler 2 is rotated relative to the lower ruler 1, so that the reference line 12 of the upper ruler 2 coincides with a 120 ° line of a protractor scale 3 of the lower ruler 1, one hand presses the upper ruler 2, so that the upper ruler 2 abuts against the drawing plane, the other hand holds a pen to draw along a space between the lower side of the upper ruler 2 and the upper side of the lower ruler 1, so as to form an angle of 120 °, after the angle is determined, the side length of 3cm can be measured and drawn through the second linear scale 5 of the upper ruler 2 or the first linear scale 4 of the lower ruler 1, at this time, the locking member 8 is rotated to make the locking member 8 approach the end of the bolt 10, so as to increase the pressure between the upper ruler 2 and the lower ruler 1, so as to increase the friction force between the upper ruler 2 and the lower ruler 1, and the friction force between the rotating shaft 6 and the mounting hole 7, so that the upper ruler 2 and the lower ruler 1 are relatively fixed, so as to draw a polygon along the side length of 120 ° line of the regular hexagon, and the other regular hexagon, so as to draw, and so as to draw a polygon with the other steps of the side length of the other regular hexagon.

The invention aims to provide a multifunctional ruler, which can realize the simultaneous measurement of the angle of an included angle and the distance between the lengths of two sides of the included angle by using the equipment, and can finish angle carving by using only one tool when the angle is carved, thereby improving the precision of the angle carving.

While the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the details of the foregoing illustrative embodiments, and that the invention 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 application 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. Various modifications and alterations to this invention will become apparent 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.

Claims (8)

1. A multifunctional ruler is characterized by comprising a lower ruler and an upper ruler which are the same in length and width, a bolt and a locking piece arranged on the bolt, wherein the lower ruler is provided with protractor scales, a first straight line scale, a rotating shaft, a first limiting hole and a bolt hole, and the upper ruler is provided with a second straight line scale, a second limiting hole, a bolt sliding groove, a mounting hole and a reference line;

the bolt head is conical, the lower ruler be equipped with the standing groove of bolt head adaptation, the pivot is located the centre of a circle of protractor scale, 0 scale mark of protractor scale is located the lower level of lower ruler, the datum line is located the lower level of upper ruler, 0 scale mark of protractor scale passes the centre of a circle of pivot is parallel with the chi limit, the datum line passes the centre of a circle of mounting hole is parallel with the chi limit.

2. The use method of the multifunctional ruler is characterized in that: the multifunctional ruler of claim 1, further comprising the steps of:

when the angle needs to be drawn, the upper ruler is rotated relative to the lower ruler, a preset angle is formed between the upper ruler and the lower ruler, the lower ruler is placed on the paper, and the angle is drawn by directly drawing a pen along the edge of the ruler body.

3. The use method of the multifunctional ruler according to claim 2, wherein when it is required to repeatedly draw a fixed angle or to draw an equilateral geometric figure by moving and rotating the fixed angle, the upper ruler is rotated relative to the lower ruler to form a target angle between the lower ruler and the upper ruler;

pass the bolt through rotatory locking piece in proper order, make locking piece and upper ruler butt, bolt head embedding standing groove this moment, inwards extrude through bolt head and locking piece, frictional force between with this increase upper ruler and the lower ruler, through pivot embedding mounting hole, and the inseparable butt of mounting hole and pivot, frictional force between increase mounting hole and the pivot, further strengthen the frictional force between upper ruler and the lower ruler, make upper ruler and lower ruler relatively fixed, draw a fixed angle or accomplish the drawing of equilateral geometry figure through removing and this fixed angle with this repetitious drawing.

4. The use method of the multi-functional ruler according to claim 2, wherein when the reference line of the upper ruler coincides with the 90 ° graduation line of the lower ruler; the first linear scale is formed by extending the crossed edge of the lower ruler body to the non-overlapping direction by using the crossed point of the two ruler edges, adding 0.5 mm to form 0 scale and extending towards the direction; the second straight line scale is 0 scale by extending the cross edge of the upper ruler body to the non-overlapping direction at the cross point of the two ruler edges, and 0.5 mm is added to the cross edge of the upper ruler body and extends towards the direction to help reduce the length error of the engraving caused by the size of the pen point;

the first straight line scale and the second straight line scale are helpful for learning and understanding tan, cot, sin and cos geometrical knowledge when crossing at 90 degrees.

5. The use method of the multifunctional ruler according to claim 2, wherein when a circle is to be drawn, the distance between the first limit hole and the second limit hole, which is the length of the radius of the circle, is adjusted by adjusting the angle between the lower ruler and the upper ruler;

after the distance between the first limiting hole and the second limiting hole is adjusted, the lower ruler and the upper ruler are relatively fixed through the rotary locking piece, one pen is inserted into any one limiting hole, the corresponding ruler body is fixed as the circle center, another pen is inserted into another limiting hole, and the other limiting hole is driven to rotate through the movable pen point, so that the circle is drawn.

6. The use method of the multifunctional ruler according to claim 5, wherein the first position-limiting hole is provided at a position close to the first linear scale of the lower ruler when drawing a circle, and the second position-limiting hole is provided at a position close to the second linear scale of the upper ruler, and when the upper ruler is rotated relative to the lower ruler, the first position-limiting hole and the second position-limiting hole can be overlapped, so that a circle with a smaller diameter can be drawn;

all set up the intermediate position at the chi body that corresponds with first spacing hole and the spacing hole of second, enable the both sides resistance balance of lower ruler and upper ruler, it is more laborsaving during the drawing.

7. The method for using the multifunctional ruler according to claim 2, wherein the first and second limiting holes have the same diameter as that of the most nib when the error is to be reduced, thereby preventing the nib from shaking and generating an error when drawing a circle.

8. The use method of the multifunctional ruler according to claim 2, wherein when the error is required to be reduced, the upper ruler is set as a flexible ruler, so that the upper ruler can be pressed to abut against the drawing or measuring plane when in use, thereby reducing the error.

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