阅读说明：本技术 漫画绘制防失真透视型比例参照装置及其使用方法 (Anti-distortion perspective type proportion reference device for cartoon drawing and use method thereof ) 是由 徐姗 于 2020-12-02 设计创作，主要内容包括：本发明涉及漫画绘制防失真透视型比例参照装置及其使用方法,在画布限位框以及显示屏下方的主机上开设有滑槽,滑槽内活动安装有滑块,滑块的顶部活动安装有画布定位片,在滑槽下方的主机上均等设置有电源开关、第一景深开关、第二景深开关以及第三景深开关,在主机内安装有充电电池组,充电电池组通过导线与控制主板相连接,控制主板与显示屏相连接,在显示屏上显示有第一景深参照层、第二景深参照层以及第三景深参照层；克服了传统尺具灵活度小的限制,提供了一种全新的比例参照装置和方法,该方法严格利用装置的结构布局,将画纸限制在固定的区域内,利用画纸和显示屏的透射透视关系,在画纸上行程不同景深的参照线,绘画者根据景深参照线的参照实施比例关系的绘制作业。(The invention relates to a cartoon drawing distortion-proof perspective type proportion reference device and a use method thereof, wherein chutes are formed in a canvas limiting frame and a host below a display screen, sliding blocks are movably mounted in the chutes, canvas positioning sheets are movably mounted at the tops of the sliding blocks, a power switch, a first depth of field switch, a second depth of field switch and a third depth of field switch are uniformly arranged on the host below the chutes, a rechargeable battery pack is mounted in the host, the rechargeable battery pack is connected with a control mainboard through a wire, the control mainboard is connected with the display screen, and a first depth of field reference layer, a second depth of field reference layer and a third depth of field reference layer are displayed on the display screen; the method strictly utilizes the structural layout of the device to limit the drawing paper in a fixed area, utilizes the transmission perspective relation between the drawing paper and the display screen to travel the reference lines with different depths of field on the drawing paper, and draws the proportional relation according to the reference of the depth of field reference lines by a painter.)

1. The utility model provides a cartoon is drawn and is prevented distortion perspective type proportion and refer to device, includes host computer (1), installs display screen (3) on host computer (1), its characterized in that: host computer (1) in display screen (3) outside on fixed mounting have with display screen (3) outer along the spacing frame of matched with canvas (2) of N font structure, spout (4) have been seted up on spacing frame of canvas (2) and host computer (1) of display screen (3) below, movable mounting has slider (5) in spout (4), the top movable mounting of slider (5) has canvas spacer (7), impartially be provided with switch (8) on host computer (1) of spout (4) below, first depth of field switch (9), second depth of field switch (10) and third depth of field switch (11), install rechargeable battery group (28) in host computer (1), rechargeable battery group (28) are connected with control mainboard (30) through the wire, control mainboard (30) are connected with display screen (3), it has first depth of field to refer to layer (23) to show on display screen (3), A second depth-of-field reference layer (24) and a third depth-of-field reference layer (25).

2. The caricature drawing anti-distortion perspective type proportional reference device of claim 1, wherein: the main frame (1) is of a rectangular plate-shaped structure, the inner side surface of the canvas limiting frame (2) is provided with a folding ruler slide block mounting groove (21), a folding ruler slide block (22) is connected in the folding ruler slide block mounting groove (21) in a clamping manner, the inner end of the folding ruler slide block (22) is connected with a folding ruler group (15), the first depth of field reference layer (23) is composed of a plurality of first depth of field square reference display lines which are evenly distributed and are tiled on the display screen (3), the width and the length of the display screen (3) are multiples of the side length of the first depth of field square reference display lines, the second depth of field reference layer (24) is composed of two second depth of field reference display lines which are vertically intersected with the plane tiled inside the first depth of field square reference display lines, and two second depth of field reference display lines are arranged inside each first depth of field square reference display line, the third depth of field reference layer (25) is composed of third depth of field reference display lines of a meter-shaped structure which are tiled and displayed on the outer side of the second depth of field reference display line and the inner side of the first depth of field square reference display line, and four third depth of field reference display lines of a meter-shaped structure are equally arranged inside each first depth of field square reference display line.

3. The caricature drawing anti-distortion perspective type proportional reference device of claim 1, wherein: the device is characterized in that the chute (4) is of a rectangular groove-shaped structure, a chute bottom limiting box (26) is fixedly installed below the chute (4) in the host (1), the length and the width of the chute bottom limiting box (26) are respectively matched with the length and the width of the chute (4), the outer side of the bottom of the chute bottom limiting box (26) is fixedly connected with the host (1) through a limiting box fixing sheet (27), a power grounding terminal (31), a first depth of field switch terminal (32), a second depth of field switch terminal (33) and a third depth of field switch terminal (34) are arranged in the host (1) at the outer side of the chute bottom limiting box (26), a charging interface (29) is arranged at the outer side of the rechargeable battery pack (28), the charging interface (29) is electrically connected with the rechargeable battery pack (28) through a wire, and the rechargeable battery pack (28) is electrically connected with the power grounding terminal (31) through, the power supply grounding connection terminal (31) is electrically connected with the control main board (30) through a wire, the control main board (30) is electrically connected with the first depth of field switch connection terminal (32), the second depth of field switch connection terminal (33), the third depth of field switch connection terminal (34) and the rechargeable battery pack (28) through wires, a display connection terminal (35) is arranged on one side of the control main board (30), and the control main board (30) is connected with the display screen (3) through the display connection terminal (35).

4. The caricature drawing anti-distortion perspective type proportional reference device of claim 1, wherein: slider (5) be cylindrical structure, the bottom joint of slider (5) is in spout (4), the spacing rotation axis of slider (6) is installed at the top of slider (5), the outer edge of the spacing rotation axis of slider (6) is as an organic whole structure with canvas spacer (7), canvas spacer (7) are the rectangle sheet structure that can center on the spacing rotation axis of slider (6) level free rotation, the groove width of spout (4) equals with the width of the spacing frame of canvas (2), the length of canvas spacer (7) is not less than the inboard interval to between display screen (3) of spout (4), movable mounting has two slider (5) in spout (4), the equal movable mounting in top of every slider (5) has canvas spacer (7).

5. The caricature drawing anti-distortion perspective type proportional reference device according to claim 2, wherein: folding ruler slider mounting groove (21) set up in the well lower part position of canvas spacing frame (2) medial surface, the tank bottom of folding ruler slider mounting groove (21) is equal to the thickness of folding ruler group (15) to the distance of display screen (3) top surface, folding ruler slider (22) are spherical structure, the inner of folding ruler slider (22) is connected with folding ruler rotating shaft frame (14) through compensation connecting rod (13), the inner of folding ruler rotating shaft frame (14) is connected with folding ruler group (15), the total length of folding ruler group (15) equals with the length of display screen (3).

6. The caricature drawing anti-distortion perspective type proportional reference device according to claim 2 or 5, wherein: the folding rule group (15) is formed by movably connecting a plurality of short rulers, wherein a second depth of field reference display line compensation gap (19) is arranged between a first short ruler adjacent to a folding rule sliding block (22) and a second short ruler adjacent to the first short ruler and far away from the folding rule sliding block (22), a first rotary connecting sheet (17) is arranged in the second depth of field reference display line compensation gap (19), two ends of the first rotary connecting sheet (17) are respectively and movably connected with one end of the first short ruler and one end of the second short ruler, a first depth of field square reference display line compensation gap (20) is arranged between the second short ruler and a third short ruler adjacent to the second short ruler and far away from the folding rule sliding block (22), a second rotary connecting sheet (18) is arranged in the first depth of field square reference display line compensation gap (20), two ends of the second rotary connecting sheet (18) are respectively and movably connected with one end of the second short ruler and one end of the third short ruler, the arrangement sequence of other short rulers is sequentially provided with a first rotary connecting sheet (17) and a second rotary connecting sheet (18) in a circulating manner, the width of a second depth of field reference display line compensation gap (19) is equal to the line width of a second depth of field reference display line, the width of a first depth of field square reference display line compensation gap (20) is equal to the line width of a first depth of field square reference display line, and a scale mark line layer (16) is arranged on the folding rule group (15) according to the sum of the second depth of field reference display line compensation gap (19) and the first depth of field square reference display line compensation gap (20) and the sum of the total number of the short rulers.

7. The caricature drawing anti-distortion perspective type proportional reference device according to claim 2, wherein: the first depth of field square reference display line is a square reference display line, two adjacent first depth of field square reference display lines share one side, two second depth of field reference display lines which are intersected vertically in a plane are equally divided into four square areas in each first depth of field square reference display line, and a third depth of field reference display line in a structure shaped like a Chinese character 'mi' is displayed in the four square areas.

8. A method for using the caricature drawing anti-distortion perspective type proportional reference device according to claim 2, which is characterized by comprising the following steps: when the cartoon drawing device is used, transparent plastic drawing paper or paper drawing paper with transparency is laid above a display screen (3) on the inner side of a canvas limiting frame (2), then the drawing paper is fixed by a canvas positioning sheet (7), the drawing paper is placed in the middle of the area between the canvas limiting frame (2) and a sliding groove (4) when the drawing paper is fixed, the display area of the display screen (3) is completely covered by the drawing paper, the initial position of a folding ruler group (15) is positioned at the upper part of the canvas limiting frame (2), when the cartoon drawing operation is started, a power switch (8) is firstly turned on, then a first depth switch (9) is turned on, a first depth of field reference layer (23) is displayed on the display screen (3), a light source of a first depth of field square reference line penetrates through the drawing paper to the cartoon drawing area on the upper part of the drawing paper, and the square reference line is used for dividing the drawing paper into equal drawing areas, a user draws a cartoon proportional relation line closest to the user according to the prompt of the light source of the first depth of field square reference display line, when the cartoon proportional relation line farther away from the user is needed, the power switch (8) and the first depth of field switch (9) are kept turned on, the second depth of field switch (10) is turned on, the second depth of field reference layer (24) is displayed on the display screen (3), the light source of the first depth of field square reference display line and the light source of the second depth of field reference display line are transmitted to the drawn cartoon proportional relation line area closest to the distance on the upper portion of the drawing paper through the drawing paper, the user draws the cartoon proportional relation line farther away from the user in the drawn cartoon proportional relation line area closest to the distance according to the prompt of the light source of the second depth of field reference display line, and when the cartoon proportional relation line farthest away from the user is needed, the power switch (8) is kept, And the first depth of field switch (9), the second depth of field switch (10) are started, the third depth of field switch (11) is started, a third depth of field reference layer (25) is displayed on the display screen (3), a light source of the first depth of field square reference display line, a light source of the second depth of field reference display line and a light source of the third depth of field reference display line are transmitted to the drawn cartoon proportional relation line area with the shortest distance and the cartoon proportional relation line area with the farthest distance on the upper part of the drawing paper through the drawing paper, and a user draws the cartoon proportional relation line with the farthest distance in the drawn cartoon proportional relation line area with the prompt of the light source of the third depth of field reference display line, so that the cartoon proportional reference drawing operation is completed.

Technical Field

The invention belongs to the field of art, and particularly relates to an anti-distortion perspective type proportion reference device for cartoon drawing and a use method thereof.

Background

In the process of drawing the cartoon, the biggest problems encountered by beginners are not skilled in drawing skills, but also the problem of scale distortion is often caused, because the beginners do not well control the scale, and meanwhile, the drawing proficiency is not high, drawing operations with accurate scale are difficult to obtain, and the obtaining of the experiences can be finally improved only by repeated practice operations, which is a relatively long process, and the painter is difficult or greatly improved in a short period.

Some cartoon drawing proportion reference devices appear in the market at present, mostly adopt the ruler utensil with size measuring device to implement the proportion of drawing in-process and hold, on the plane of stipulation, adopt the drawing chi measuring device of different shapes and different specifications and usage, the manual drawing experience of cooperation painter combines, finally obtains the cartoon work that accords with conventional proportion. In the process of drawing the cartoon by adopting the traditional proportional reference device, certain defects exist, and the defects are concentrated and expressed as follows: firstly, the traditional ruler has various types, one work is drawn to be converted back and forth among various rulers when the ruler is used, the operation is complicated, and the whole workload is large; secondly, the traditional ruler has small flexibility, is controlled by the appearance of the ruler, and combines the special requirements that the cartoon needs to draw lines, when the traditional ruler is used, the proportion reference is lack of flexibility, the whole proportion perspective relation cannot be standardized on canvas, certain inconvenience is caused, and the judgment of the proportion of a beginner is influenced.

Therefore, the anti-distortion perspective type proportion reference device for cartoon drawing and the use method thereof are simple in structure, convenient to operate, rapid and simple to use, obvious in perspective effect and strong in flexibility, help cartoon beginners to establish proportion relation, provide accurate proportion reference integrally, have various auxiliary functions, are simple and easy to operate, and have wide market prospects.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the cartoon drawing anti-distortion perspective type proportional reference device and the use method thereof, wherein the device has the advantages of simple structure, convenience in operation, rapidness, simplicity and convenience in use, perspective effect, strong flexibility, contribution to a cartoon beginner to establishing a proportional relationship, accuracy in integrally providing proportional reference, multiple auxiliary functions, simplicity in use and easiness in operation, and is used for overcoming various defects in the prior art.

The technical scheme of the invention is realized as follows: the utility model provides a cartoon is drawn and is prevented distortion perspective type proportion and refer to device, including the host computer, install the display screen on the host computer, the host computer in the display screen outside on fixed mounting have with the display screen outer along the spacing frame of matched with canvas of N font structure, the spout has been seted up on the host computer of the spacing frame of canvas and display screen below, movable mounting has the slider in the spout, the top movable mounting of slider has the canvas spacer, impartially be provided with switch on the host computer of spout below, first depth of field switch, second depth of field switch and third depth of field switch, install rechargeable battery group in the host computer, rechargeable battery group is connected with the control mainboard through the wire, the control mainboard is connected with the display screen, it has first depth of field reference layer to show on the display screen, second depth of field reference layer and third depth of field reference layer.

The main machine is of a rectangular plate-shaped structure, the inner side surface of the canvas limiting frame is provided with a folding ruler slide block mounting groove, a folding ruler slide block is connected in the folding ruler slide block mounting groove in a clamping way, the inner end of the folding ruler slide block is connected with a folding ruler group, the first depth of field reference layer is composed of a plurality of first depth of field square reference display lines which are evenly distributed and are tiled on the display screen, the width and the length of the display screen are multiples of the side length of the first depth of field square reference display lines, the second depth of field reference layer is composed of two second depth of field reference display lines which are vertically intersected with the plane tiled inside the first depth of field square reference display lines, two second depth of field reference lines are arranged inside each first depth of field square reference display line, and the third depth of field reference layer is composed of a third depth of field reference line of a meter-shaped structure which is displayed outside the second depth of field reference display lines and inside the first depth of field square reference lines, and four third depth-of-field reference display lines in a structure shaped like a Chinese character 'mi' are equally arranged inside each first depth-of-field square reference display line.

The sliding groove is of a rectangular groove-shaped structure, a sliding groove bottom limiting box is fixedly mounted below the sliding groove in the host, the length and the width of the sliding groove bottom limiting box are matched with the length and the width of the sliding groove respectively, the bottom outer side of the sliding groove bottom limiting box is fixedly connected with the host through a limiting box fixing sheet, a power grounding connecting terminal, a first depth switch connecting terminal, a second depth switch connecting terminal and a third depth switch connecting terminal are arranged in the host outside the sliding groove bottom limiting box, a charging interface is arranged on the outer side of the rechargeable battery pack and electrically connected with the rechargeable battery pack through a wire, the rechargeable battery pack is electrically connected with the power grounding connecting terminal through a wire, the power grounding connecting terminal is electrically connected with the control mainboard through a wire, and the control mainboard is electrically connected with the first depth switch connecting terminal, the second depth, The third depth of field switch binding post and rechargeable battery group electric connection are provided with display binding post in one side of control mainboard, and the control mainboard passes through display binding post and is connected with the display screen outward.

The slider be cylindrical structure, the bottom joint of slider is in the spout, the spacing rotation axis of slider is installed at the top of slider, the outer edge of the spacing rotation axis of slider is as an organic whole structure with the canvas spacer, the canvas spacer is the rectangle sheet structure that can center on the horizontal free rotation of the spacing rotation axis of slider, the groove width of spout equals with the width of the spacing frame of canvas, the length of canvas spacer is not less than the inboard interval to between the display screen of spout, movable mounting has two sliders in the spout, the equal movable mounting in top of every slider has the canvas spacer.

Folding chi slider mounting groove set up in the well lower part position of canvas spacing frame medial surface, the tank bottom of folding chi slider mounting groove equals with the thickness of folding chi group to the distance of display screen top surface, folds the chi slider and be spherical structure, the inner of folding the chi slider is connected with folding chi rotating shaft frame through compensating the connecting rod, the inner of folding chi rotating shaft frame is connected with folding chi group, the total length of folding the chi group equals with the length of display screen.

The folding rule group is formed by movably connecting a plurality of short rulers, wherein a second depth of field reference display line compensation gap is arranged between a first short ruler adjacent to a folding rule sliding block and a second short ruler adjacent to the first short ruler and far away from the folding rule sliding block, a first rotary connecting sheet is arranged in the second depth of field reference display line compensation gap, two ends of the first rotary connecting sheet are respectively and movably connected with one end of the first short ruler and one end of the second short ruler, a first depth of field square reference display line compensation gap is arranged between the second short ruler and a third short ruler adjacent to the second short ruler and far away from the folding rule sliding block, a second rotary connecting sheet is arranged in the first depth of field square reference display line compensation gap, two ends of the second rotary connecting sheet are respectively and movably connected with one end of the second short ruler and one end of the third short ruler, and a first rotary connecting sheet and a second rotary connecting sheet are sequentially and circularly arranged in the arrangement sequence of other short rulers, the width of the second depth of field reference display line compensation gap is equal to the width of the second depth of field reference display line, the width of the first depth of field square reference display line compensation gap is equal to the width of the first depth of field square reference display line, and a scale mark line layer is arranged on the folding rule group according to the sum of the second depth of field reference display line compensation gap and the first depth of field square reference display line compensation gap and the sum of the short straight scales.

The first depth of field square reference display line is a square reference display line, two adjacent first depth of field square reference display lines share one side, two second depth of field reference display lines which are intersected vertically in a plane are equally divided into four square areas in each first depth of field square reference display line, and a third depth of field reference display line in a structure shaped like a Chinese character 'mi' is displayed in the four square areas.

The method for using the caricature drawing anti-distortion perspective type proportional reference device comprises the following steps: when the cartoon drawing device is used, transparent plastic drawing paper or paper drawing paper with transparency is laid above a display screen on the inner side of a canvas limiting frame, then the drawing paper is fixed by a canvas positioning sheet, the drawing paper is centrally laid in an area between the canvas limiting frame and a sliding groove when the drawing paper is fixed, the display area of the display screen is completely covered by the drawing paper, the initial position of a folding ruler group is positioned at the upper part of the canvas limiting frame, when the cartoon drawing operation is started, a power switch is firstly turned on, then a first depth of field switch is turned on, a first depth of field reference layer is displayed on the display screen, a light source of a first depth of field square reference display line transmits to the cartoon drawing area on the upper part of the drawing paper through the drawing paper, the drawing paper is divided into equal drawing areas by using a light source of the first depth of field square reference display line, and a user prompts to draw a closest cartoon proportional relation line according to the light source of the first depth of the first, when a cartoon scale relation line with a distance being increased is required, the power switch and the first depth of field switch are kept turned on, the second depth of field switch is turned on, a second depth of field reference layer is displayed on the display screen, a light source of the first depth of field square reference display line and a light source of the second depth of field reference display line are transmitted to a cartoon scale relation line area which is drawn to be the nearest distance on the upper portion of the drawing paper through the drawing paper, a user draws the cartoon scale relation line with the distance being increased in the cartoon scale relation line area which is drawn to be the nearest distance according to the prompt of the light source of the second depth of field reference display line, when the cartoon scale relation line with the distance being the farthest distance is required, the power switch, the first depth of field switch and the second depth of field switch are kept turned on, a third depth of field switch is turned on, a third depth of field reference layer is displayed on the display screen, the light source of the first depth of field square reference line, the light source of the second depth of field reference line and the light And transmitting the source to the drawn cartoon proportional relation line closest to the drawing paper and the drawn cartoon proportional relation line area farthest from the drawing paper through the drawing paper, and drawing the cartoon proportional relation line farthest from the drawn cartoon proportional relation line area closest to the drawing paper by the user according to the prompt of the light source of the third depth-of-field reference display line, so as to finish the cartoon proportional reference drawing operation.

The invention has the following positive effects: the product has simple structure and convenient operation, overcomes the defect that the conventional cartoon drawing proportion reference in the market is mostly a size measuring device, and directly provides a cartoon drawing distortion-proof proportion reference device realized by using a perspective principle, the product is a special device for proportion reference in cartoon drawing, the product utilizes a light source of a deep reference display line displayed on a display screen to be perspective-drawn on a drawing paper of the drawing, the stroke on the drawing paper utilizes a marking line transmitted by a light source, so that a user can conveniently refer to the proportion reference in the cartoon drawing process, the limited operation mode of the conventional ruler is abandoned, the limitation of small flexibility of the conventional ruler is overcome, and a brand new proportion reference device and a method are provided, the structural layout of the device is strictly utilized, the drawing paper is limited in a fixed area, the transmission perspective relation between the drawing paper and the display screen is utilized, the stroke on the drawing paper has reference lines with different depth of field, the drawing operation of the proportional relation is implemented by a painter according to the reference of the depth of field reference line, the product is simple in structure, convenient to operate, quick and simple to use, obvious in perspective effect, capable of distinguishing the reference line layers of the three-layer perspective relation, obvious in perspective effect, strong in flexibility, beneficial to a cartoon beginner to establish the proportional relation, accurate in integrally provided proportional reference, various in auxiliary function, simple in use method, easy to operate and good in social and economic benefits.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the folding rule slider mounting groove of the invention.

Fig. 3 is a structural diagram illustrating an open state of the first depth-of-field reference layer according to the present invention.

Fig. 4 is a structural diagram illustrating an on state of the second depth-of-field reference layer according to the present invention.

Fig. 5 is a structural diagram illustrating an open state of a third depth-of-field reference layer according to the present invention.

Fig. 6 is a schematic view of the internal structure of the present invention.

Fig. 7 is a schematic structural view of a folding rule set according to the present invention.

Detailed Description

As shown in figures 1, 2, 3, 4, 5, 6 and 7, the device for drawing the anti-distortion perspective type proportion reference of the cartoon comprises a host 1, a display screen 3 installed on the host 1, a canvas limiting frame 2 of an N-shaped structure matched with the outer edge of the display screen 3 is fixedly installed on the host 1 outside the display screen 3, a sliding groove 4 is formed in the host 1 below the canvas limiting frame 2 and the display screen 3, a sliding block 5 is movably installed in the sliding groove 4, a canvas positioning sheet 7 is movably installed at the top of the sliding block 5, a power switch 8, a first depth of field switch 9, a second depth of field switch 10 and a third depth of field switch 11 are equally arranged on the host 1 below the sliding groove 4, a rechargeable battery pack 28 is installed in the host 1, the rechargeable battery pack 28 is connected with a control mainboard 30 through a conducting wire, the control mainboard 30 is connected with the display screen 3, and a first depth of field reference layer 23 is displayed on the display screen 3, A second depth of field reference layer 24 and a third depth of field reference layer 25. The main frame 1 is of a rectangular plate-shaped structure, a folding ruler slide block mounting groove 21 is arranged on the inner side face of the canvas limiting frame 2, a folding ruler slide block 22 is connected in the folding ruler slide block mounting groove 21 in a clamping mode, the inner end of the folding ruler slide block 22 is connected with a folding ruler group 15, the first depth of field reference layer 23 is composed of a plurality of first depth of field square reference display lines which are evenly distributed and are displayed on the display screen 3 in a tiled mode, the width and the length of the display screen 3 are multiples of the side length of the first depth of field square reference display lines, the second depth of field reference layer 24 is composed of two second depth of field reference display lines which are vertically intersected with each other in a plane and are displayed in the first depth of field square reference display lines in a tiled mode, two second depth of field reference lines are arranged in each first depth of field square reference line, and the third depth of field reference layer 25 is composed of a meter-shaped structure which is displayed outside the second depth of field reference display lines And the inside of each first depth of field square reference display line is equally provided with four third depth of field reference display lines in a structure shaped like a Chinese character 'mi'.

The sliding chute 4 is of a rectangular groove-shaped structure, a sliding chute bottom limiting box 26 is fixedly installed below the sliding chute 4 in the host 1, the length and the width of the sliding chute bottom limiting box 26 are respectively matched with the length and the width of the sliding chute 4, the outer side of the bottom of the sliding chute bottom limiting box 26 is fixedly connected with the host 1 through a limiting box fixing piece 27, a power supply grounding terminal 31, a first depth of field switch terminal 32, a second depth of field switch terminal 33 and a third depth of field switch terminal 34 are arranged in the host 1 outside the sliding chute bottom limiting box 26, a charging interface 29 is arranged on the outer side of the charging battery pack 28, the charging interface 29 is electrically connected with the charging battery pack 28 through a wire, the charging battery pack 28 is electrically connected with the power supply grounding terminal 31 through a wire, and the power supply grounding terminal 31 is electrically connected, the control main board 30 is electrically connected with the first depth of field switch connection terminal 32, the second depth of field switch connection terminal 33, the third depth of field switch connection terminal 34 and the rechargeable battery pack 28 through wires, a display connection terminal 35 is arranged on one side of the control main board 30, and the control main board 30 is connected with the outside of the display screen 3 through the display connection terminal 35. Slider 5 be cylindrical structure, the bottom joint of slider 5 is in spout 4, the spacing rotation axis 6 of slider is installed at the top of slider 5, the outer edge of the spacing rotation axis 6 of slider is as an organic whole structure with canvas spacer 7, canvas spacer 7 is the rectangle sheet structure that can center on the 6 horizontal free rotations of the spacing rotation axis of slider, the groove width of spout 4 equals with the width of the spacing frame 2 of canvas, the length of canvas spacer 7 is not less than the inboard of spout 4 to the interval between the display screen 3, movable mounting has two sliders 5 in the spout 4, the equal movable mounting in top of every slider 5 has canvas spacer 7.

Folding ruler slider mounting groove 21 set up in the middle and lower part position of 2 medial surfaces of canvas spacing frame, the distance of the tank bottom of folding ruler slider mounting groove 21 to 3 top surfaces of display screen equals with the thickness of folding ruler group 15, folding ruler slider 22 is spherical structure, folding ruler slider 22's the inner is connected with folding ruler rotating shaft frame 14 through compensation connecting rod 13, folding ruler rotating shaft frame 14's the inner is connected with folding ruler group 15, folding ruler group 15's total length equals with the length of display screen 3. The folding rule group 15 is formed by movably connecting a plurality of short rulers, wherein a second depth-of-field reference display line compensation gap 19 is arranged between a first short ruler adjacent to a folding rule sliding block 22 and a second short ruler adjacent to the first short ruler and far away from the folding rule sliding block 22, a first rotary connecting sheet 17 is arranged in the second depth-of-field reference display line compensation gap 19, two ends of the first rotary connecting sheet 17 are respectively and movably connected with one end of the first short ruler and one end of the second short ruler, a first depth-of-field square reference display line compensation gap 20 is arranged between the second short ruler and a third short ruler adjacent to the second short ruler and far away from the folding rule sliding block 22, a second rotary connecting sheet 18 is arranged in the first depth-of-field square reference display line compensation gap 20, two ends of the second rotary connecting sheet 18 are respectively and movably connected with one end of the second short ruler and one end of the third short ruler, the first rotary connecting sheet 17 and the second rotary connecting sheet 18 are sequentially and circularly arranged in, the width of the second depth of field reference display line compensation gap 19 is equal to the width of the second depth of field reference display line, the width of the first depth of field square reference display line compensation gap 20 is equal to the width of the first depth of field square reference display line, and a scale mark layer 16 is provided on the folding rule group 15 according to the sum of the total number of the second depth of field reference display line compensation gaps 19 and the first depth of field square reference display line compensation gaps 20 and the sum of the total number of the short rulers. The first depth of field square reference display line is a square reference display line, two adjacent first depth of field square reference display lines share one side, two second depth of field reference display lines which are intersected vertically in a plane are equally divided into four square areas in each first depth of field square reference display line, and a third depth of field reference display line in a structure shaped like a Chinese character 'mi' is displayed in the four square areas.

The method for using the caricature drawing anti-distortion perspective type proportional reference device comprises the following steps: when in use, transparent plastic drawing paper or paper drawing paper with transparency is laid above the display screen 3 on the inner side of the canvas limiting frame 2, then the drawing paper is fixed by the canvas positioning sheet 7, the drawing paper is centrally laid in the area between the canvas limiting frame 2 and the chute 4 when the drawing paper is fixed, the display area of the display screen 3 is completely covered by the drawing paper, the initial position of the folding ruler group 15 is positioned at the upper part of the canvas limiting frame 2, when the cartoon drawing operation is started, the power switch 8 is firstly turned on, then the first depth of field switch 9 is turned on, the first depth of field reference layer 23 is displayed on the display screen 3, the light source of the first depth of field square reference display line penetrates through the drawing paper to the cartoon drawing area on the upper part of the drawing paper, the drawing paper is divided into equal drawing areas by the light source of the first depth of field square reference line, and a user draws the closest cartoon scale line according to the light source prompt of the first depth of the square display reference line, when a cartoon proportional relation line with a distance being increased is required, the power switch 8 and the first depth of field switch 9 are kept turned on, the second depth of field switch 10 is turned on, the second depth of field reference layer 24 is displayed on the display screen 3, the light source of the first depth of field square reference display line and the light source of the second depth of field reference display line are transmitted to the cartoon proportional relation line area which is drawn to be the nearest distance on the upper part of the drawing paper through the drawing paper, a user draws the cartoon proportional relation line with the distance being increased in the cartoon proportional relation line area which is drawn to be the nearest distance according to the prompt of the light source of the second depth of field reference display line, when the cartoon proportional relation line with the distance being the farthest is required, the power switch 8, the first depth of field switch 9 and the second depth of field switch 10 are kept turned on, the third depth of field switch 11 is turned on, and the third depth of field reference layer 25 is displayed on the display screen 3, and the user draws the cartoon scale relation line with the farthest distance in the drawn cartoon scale relation line area with the nearest distance and the cartoon scale relation line area with the farthest distance according to the prompt of the light source of the third depth-of-field reference display line, so as to finish the cartoon scale reference drawing operation.

When the product is in concrete operation, in order to further accurately obtain drawing operation of a proportional relation by a user and simultaneously in order to measure a drawing image after the drawing operation is finished by the user, the product is provided with a folding rule group 15, the folding rule group 15 is formed by movably connecting a plurality of short rulers, wherein a second depth of field reference display line compensation gap 19 is arranged between a first short ruler adjacent to a folding rule sliding block 22 and a second short ruler adjacent to the first short ruler and far away from the folding rule sliding block 22, a first rotary connecting sheet 17 is arranged in the second depth of field reference display line compensation gap 19, two ends of the first rotary connecting sheet 17 are respectively and movably connected with one end of the first short ruler and one end of the second short ruler, a first depth of field square reference display line compensation gap 20 is arranged between the second short ruler and a third short ruler adjacent to the second short ruler and far away from the folding rule sliding block 22, a second rotary connecting sheet 18 is arranged in the first depth of field square reference line compensation gap 20, two ends of a second rotary connecting sheet 18 are respectively movably connected with one end of a second short ruler and one end of a third short ruler, a first rotary connecting sheet 17 and the second rotary connecting sheet 18 are sequentially and circularly arranged in the arrangement sequence of other short rulers, the width of a second depth-of-field reference display line compensation gap 19 is equal to the width of a second depth-of-field reference display line, the width of a first depth-of-field square reference display line compensation gap 20 is equal to the width of a first depth-of-field square reference display line, and a scale mark layer 16 is arranged on the folding rule group 15 according to the sum of the total number of the second depth-of-field reference display line compensation gap 19 and the first depth-of-field square reference display line compensation gap 20 and the sum of the total number of the short rulers. When the ruler is used as a whole, the length reading of the scale mark line layer 16 is to calculate the length of the second depth of field reference display line compensation gap 19 and the first depth of field square reference display line compensation gap 20, when the ruler is used, an independent size mark line layer is arranged on each short ruler, and each short ruler and the folding ruler set 15 can be used independently as a whole. When the drawing operation is carried out or after the drawing operation is finished, the user uses the folding rule group 15 to measure the length of the finished product, firstly, the whole length and the width of the cartoon proportional relation line closest to the user are measured, then, the whole length and the width of the cartoon proportional relation line farther away from the user are measured, finally, the whole length and the width of the cartoon proportional relation line farthest away from the user are measured, and meanwhile, the local size of each cartoon proportional relation line can be measured.

Taking a character cartoon as an example: the hairline-the base of the nose-the chin are three divisions, and the distance between each section is about equal; the ear root-external canthus-internal canthus-external canthus-ear root are five eyes, and the distances between them are about equal. A standing adult is about seven heads tall, five heads long when sitting, and exactly three and a half heads long when squatting. The head of the child is large in proportion, and the height of the child is generally three to four when the child stands. The arms are opened and the length between the two middle fingers is approximately equal to the height of the person. The length of the arm is two heads long. The palm is two thirds long. The elbow just reaches the top of the head when the arm is raised. The shoulder width is two heads wide. The sole is one long head. Men are wider than their shoulders and women are wider than their hips.

In addition to the determination of the proportional size described above, the first depth-of-field reference layer 23, the second depth-of-field reference layer 24, and the third depth-of-field reference layer 25 are used to obtain a reference during the drawing process, and the measurement of the size can be performed by the reduced-scale group 15 after the drawing operation is completed.