CN209274225U - multifunctional drawing ruler - Google Patents

Abstract

The utility model belongs to office appliance field, it is related to a kind of multifunctional drawing ruler, it include: main scale and auxiliary scale, wherein, main scale includes pedestal, horizontal stripe, first connecting portion and annular interconnecting piece, pedestal passes through first connecting portion respectively with horizontal stripe both ends and annular interconnecting piece connects, and annular interconnecting piece is equipped with the gap parallel with horizontal stripe and pedestal, and the annular interconnecting piece inside position adjacent with gap is equipped with limit film；Auxiliary scale one end is equipped with the first circular arc projection and the second circular arc projection, and the thickness of the first circular arc projection is greater than the second circular arc projection, and an end face of the first circular arc projection is fixedly connected with disk；The distance between pedestal and horizontal stripe are identical as the height of the first circular arc projection, and the height of the second circular arc projection is less than or equal to the width of gap.There is exclusive circular groove overall structure according to the multifunctional drawing ruler of the utility model embodiment, multifunctional drawing ruler is folded, significantly reduces ruler and is taken up space, is convenient for carrying.

Description

multifunctional drawing ruler

technical field

The utility model belongs to the field of office supplies and relates to a multifunctional drawing ruler.

Background technique

The multi-functional drawing ruler is a teaching tool for drawing mathematical geometric figures by integrating basic drawing tools such as scales, compass boards, rulers, and protractors. It not only reduces the difficulty for students and teachers in mathematical drawing, but also makes the drawing tool simple, convenient and easy to carry. At the same time, the full-featured drawing ruler can stimulate students' interest in learning geometry and add support to education.

At present, the multifunctional drawing rulers on the market are mainly faced with the following three problems, firstly, the accuracy is not high enough, secondly, the functions are not complete enough, and thirdly, the structure is not simple enough, which is not conducive to carrying. Specifically, the main functions of the multi-function drawing ruler are the drawing of vertical lines and parallel lines, the measurement of line segments and the drawing of specified length line segments, the drawing and measurement of angles, and the drawing and measurement of slope gradients.

For vertical lines, the prior art is mainly a hole-digging method, that is, dig out a circular hole of an appropriate size on the ruler, insert a drawing pen into the hole, and utilize the movement of the ruler to drive the drawing pen to draw a vertical line. This technique has two significant disadvantages. One is that it is not possible to directly draw a vertical line of a specified length, and the other is that the movement of the ruler is likely to cause errors, which cannot meet the needs of the market.

For parallel lines, the existing technology is mainly the roller method. Install a roller on one side of the ruler, and use the sliding of the roller to draw a parallel line with a specified distance. This kind of production also has shortcomings. The size of the ruler is not convenient for storage.

For drawing and measuring angles, the existing technology mainly uses a protractor as an auxiliary measuring tool. They either have a single structure or are more complicated, but they all have the defects of large size and cumbersome devices. In this regard, we learn from each other, and only adopt its working principle and remove other unnecessary components to simplify the structure of the drawing ruler while achieving the function.

The common configuration (commercially available) for gradient measurement is mainly on equipment equipped with level gauges for some engineering construction measurements. But for paper graphics with small structures, we have not been able to find out a gradient drawing and measurement tool with mature principles and simple structures.

Utility model content

In order to overcome the deficiencies of the prior art, the embodiment of the utility model proposes a multifunctional drawing ruler.

According to one aspect of the present utility model, a multifunctional drawing ruler includes: a main ruler and an auxiliary ruler, wherein the main ruler includes a base, a horizontal bar, a first connecting part and an annular connecting part, and the two ends of the base and the horizontal bar respectively pass through The first connecting part is connected with the annular connecting part, and the annular connecting part is provided with a notch parallel to the horizontal bar and the base, and the inner side of the annular connecting part adjacent to the notch is provided with a limit piece; one end of the auxiliary ruler is provided with a first arc Protruding block and the second arc protruding block, the thickness of the first arc protruding block is greater than the second arc protruding block, one end surface of the first arc protruding block is fixedly connected with the disk; the distance between the base and the horizontal bar is the same as The heights of the first arc protrusions are the same, and the height of the second arc protrusions is less than or equal to the width of the notch.

According to an exemplary embodiment of the present invention, a slider is provided on the outside of the horizontal bar, and a protrusion is provided at a position corresponding to the slider and the auxiliary scale, and the height of the protrusion is 1 cm.

According to an exemplary embodiment of the present utility model, the side of the main ruler close to the auxiliary ruler has a scale, and both sides of the auxiliary ruler have scales.

According to an exemplary embodiment of the present utility model, an angle scale is provided on the outer side of the disc.

According to an exemplary embodiment of the present invention, the main ruler is provided with a measurement angle reference line near the disc.

According to an exemplary embodiment of the present invention, the thickness difference between the first arc protrusion and the second arc protrusion is greater than or equal to the thickness of the limiting piece.

According to an exemplary embodiment of the present invention, the base is aligned with one end surface of the horizontal bar, and the thickness of the horizontal bar is smaller than that of the base.

According to an exemplary embodiment of the present utility model, the auxiliary ruler is located above the base, and the projections of the auxiliary ruler and the main ruler on the base do not overlap.

According to an exemplary embodiment of the present invention, the thickness difference between the base and the horizontal bar is equal to the thickness of the sub-ruler.

According to an exemplary embodiment of the present invention, the radial length of the horizontal chute formed between the base and the horizontal bar is greater than or equal to the sum of the length of the subscale and the radial length of the slider.

To sum up, the multifunctional drawing ruler of the embodiment of the utility model has a unique overall structure of a circular groove, so that the multifunctional drawing ruler can be folded, which effectively reduces the space occupied by the ruler and is convenient to carry.

The production of the utility model can adapt to various size requirements without affecting the accuracy, is suitable for different purposes, and has high commercial value.

The utility model is equipped with a protractor at the side disc, which can be used for drawing and measuring figures of different angles.

The main ruler and the auxiliary ruler in the embodiment of the utility model have scales, which can be used for drawing vertical lines with a specific length and horizontal lines with a specific distance.

The utility model is equipped with a movable slide block of a specific length, cooperates with a sub-scale with a scale, and realizes the drawing of different gradients.

The multi-functional drawing ruler is a teaching tool for drawing mathematical geometric figures by integrating basic drawing tools such as scales, compass boards, rulers, and protractors. It not only reduces the difficulty for students and teachers in mathematical drawing, but also makes the drawing tool simple, convenient and easy to carry.

Description of drawings

Fig. 1 is a schematic diagram of the structure of one side of a multifunctional drawing ruler according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the structure of the other side of the multifunctional drawing ruler according to an embodiment of the present invention;

Fig. 3 is the front view of the main ruler of the multifunctional drawing ruler according to the embodiment of the present invention;

Fig. 4 is a schematic structural view of a multifunctional drawing ruler sub-ruler according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of an enlarged structure of the connecting part of the main ruler and the auxiliary ruler according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of the usage state of the multifunctional drawing ruler according to an embodiment of the present invention.

In the figure, A: main ruler; A1: ring connection part; A2: horizontal bar; A3: notch; A4: limit piece; A5: base; A6: reference line; B: auxiliary ruler; : disc; B3: first arc protrusion; B4: protrusion gap; B5: second arc protrusion; C: slider.

Detailed ways

The embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings. It is not difficult for those skilled in the art to understand that the following description is only used to illustrate the utility model, and should not be construed as a specific limitation to the utility model.

As shown in FIG. 1 and FIG. 2 , a multifunctional drawing ruler according to an embodiment of the present invention includes: a main ruler A, an auxiliary ruler B and a slider C.

As shown in Figure 3, the main ruler A includes a base A5, a horizontal bar A2, a first connecting part (right connecting part) and an annular connecting part A1 (left connecting part). A connection part and an annular connection part are connected. A horizontal chute is formed between the base A5 and the bar A2. A notch A3 parallel to the bar A2 and the base A5 is formed on the annular connecting portion A1, and the notch A3 is located above the bar A2. A limiting piece A4 is provided at a position adjacent to the notch A3 inside the annular connection portion A1.

As shown in Figure 4, one end (left end) of the auxiliary ruler B is provided with a first arc protrusion B3 and a second arc protrusion B5, the thickness of the first arc protrusion B3 is greater than that of the second arc protrusion B5, and the second arc protrusion B5 One end surface of an arc protrusion B3 is fixedly connected with the disc B2. There is a gap between the second arc protrusion B5 and the disk B2, so that the first arc protrusion B3 and the second arc protrusion B5 of the auxiliary scale can rotate in the annular connection portion A1 of the main scale.

As shown in FIG. 5 , the distance between the base A5 and the bar A2 is the same as the height of the first arc protrusion B3 , and the height of the second arc protrusion B5 is equal to the width of the notch A3 . As shown in Figure 5, when the main scale A and the auxiliary scale B are rotated to be vertical in the annular connection part A1, by sliding the auxiliary scale B to the right, the first arc protrusion B3 of the auxiliary scale B can be aligned with the base A5 and the horizontal Slide in the horizontal chute between the bars A2 (as shown in Figure 6), so as to realize the vertical sliding of the auxiliary ruler B relative to the main ruler A.

As shown in Figure 2, a slider C is provided on the outer side of the horizontal bar A2, and a protrusion is provided on the position corresponding to the slider C and the auxiliary scale B, and the height of the protrusion is 1 cm.

As shown in Figure 1, there is a scale on the side of the main ruler close to the auxiliary ruler (that is, the upper side of the horizontal bar A2 in Figure 1), and there are scales on both sides of the auxiliary ruler (that is, the upper and lower sides of the auxiliary ruler B in Figure 1).

As shown in FIG. 2 , the measuring angle scale B1 is provided on the outer side of the disc B2, and the measuring angle reference line A6 may be provided on the main scale near the disc. Initially, the zero scale of the protractor scale B1 coincides with the reference line A6. When drawing an angle or measuring an angle, refer to the principle of a protractor and just rotate the sub-scale B.

As shown in FIG. 4 , the thickness difference between the first arc protrusion B3 and the second arc protrusion B5 is greater than or equal to the thickness of the limiting piece A4 .

As shown in FIG. 1 , the base A5 is aligned with one end of the horizontal bar A2 , and the thickness of the horizontal bar A2 is smaller than that of the base A5 . The subscale B is located above the base A, and the projections of the subscale B and the bar A2 on the base A5 do not overlap. The thickness difference between the base A5 and the bar A2 is equal to the thickness of the sub-scale B.

As shown in Figure 2, the radial length (length in the horizontal direction) of the horizontal chute formed between the base A5 and the bar A2 is greater than or equal to the sum of the length of the subscale B and the radial length (length in the horizontal direction) of the slider C .

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. Within the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (10)

1. a kind of multifunctional drawing ruler, which is characterized in that the multifunctional drawing ruler includes: main scale and auxiliary scale, wherein main scale Including pedestal, horizontal stripe, first connecting portion and annular interconnecting piece, pedestal and horizontal stripe both ends pass through first connecting portion and ring respectively The connection of shape interconnecting piece, annular interconnecting piece be equipped with horizontal stripe and the gap parallel with pedestal, on the inside of annular interconnecting piece and gap Adjacent position is equipped with limit film；Auxiliary scale one end is equipped with the first circular arc projection and the second circular arc projection, the first circular arc projection Thickness is greater than the second circular arc projection, and an end face of the first circular arc projection is fixedly connected with disk；The distance between pedestal and horizontal stripe Identical as the height of the first circular arc projection, the height of the second circular arc projection is less than or equal to the width of gap.

2. multifunctional drawing ruler according to claim 1, which is characterized in that be equipped with sliding block, the cunning on the outside of the horizontal stripe Block position corresponding with auxiliary scale is equipped with protrusion, height of projection 1cm.

3. multifunctional drawing ruler according to claim 1, which is characterized in that main scale has scale, auxiliary scale close to auxiliary scale side There are scale in two sides.

4. multifunctional drawing ruler according to claim 1, which is characterized in that be equipped with angle measuring calibration on the outside of the disk.

5. multifunctional drawing ruler according to claim 4, which is characterized in that main scale is equipped with angulation benchmark at disk Line.

6. multifunctional drawing ruler according to claim 1, which is characterized in that the first circular arc projection and the second circular arc projection are thick The difference of degree is more than or equal to the thickness of limit film.

7. multifunctional drawing ruler according to claim 1, which is characterized in that one end of pedestal and horizontal stripe is in face of neat, horizontal stripe Thickness be less than pedestal thickness.

8. multifunctional drawing ruler according to claim 7, which is characterized in that auxiliary scale is located above pedestal, auxiliary scale and horizontal stripe Projection on pedestal is not overlapped.

9. multifunctional drawing ruler according to claim 8, which is characterized in that the difference of the thickness of pedestal and horizontal stripe is equal to auxiliary scale Thickness.

10. multifunctional drawing ruler according to claim 2, which is characterized in that the level formed between pedestal and horizontal stripe is sliding The radical length of slot is more than or equal to the sum of auxiliary scale length and sliding block radical length.