CN113858872A

CN113858872A - Drawing device capable of being adjusted according to paper size for drawing

Info

Publication number: CN113858872A
Application number: CN202111254927.4A
Authority: CN
Inventors: 姚梅; 丁沂蒙; 张建萍
Original assignee: Linyi Vocational Colledge
Current assignee: Linyi Vocational Colledge
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2021-12-31

Abstract

The invention discloses a drawing device capable of being adjusted according to paper size for drawing, and relates to the technical field of drawing devices. The extension plate can be fixed at the rear end of the placing plate through the mutual matching of the inserted rod, the clamping block, the clamping groove and the first spring, the placing area of the device can be increased, the device can place drawing paper with different sizes, meanwhile, the extension plate can be quickly taken down from the device when the extension plate is not needed, the operation process is simple, the distance between the two adjusting and fixing mechanisms can be adjusted through the mutual matching of the square plate, the L-shaped adjusting plate, the first tooth-shaped block, the second tooth-shaped block, the pulling plate, the first sliding block, the first sliding groove, the second sliding groove, the telescopic rod and the second spring, the device can clamp and fix the drawing paper with different sizes, and the situation that the drawing paper moves in the using process is avoided.

Description

Drawing device capable of being adjusted according to paper size for drawing

Technical Field

The invention relates to a drawing device for drawing, in particular to a drawing device which can be adjusted according to the size of paper for drawing.

Background

The painting is an artistic form of forming images on planes such as paper, textile fabrics, wood boards, walls and the like by using tools such as pens, scrubbing brushes, knives, ink, pigments and the like, and with the improvement of living standard, more and more parents pay attention to various developments of children to give various training classes to the children, and the painting is one of the pictures, not only can cultivate sentiment, but also can exercise the tolerance and the observation of the children, thereby being beneficial to the intelligence development and development of the children.

The current painting device for painting still has some defects and shortcomings when in use, and the places needing improvement are as follows:

1. the area of the existing drawing device for placing the drawing paper is fixed, and the drawing paper is inconvenient to place when the area of the drawing paper is large, so that the drawing is difficult;

2. the fixed establishment of current drawing device to drawing paper generally all is fixed the setting, can not carry out appropriate regulation according to the difference of drawing paper size, and then can lead to the not good condition of the fixed effect of drawing paper, influences the experience in the use.

Disclosure of Invention

The invention aims to provide a drawing device capable of being adjusted according to paper size for drawing, and aims to solve the problems that the area of a piece of drawing paper placed in the conventional drawing device in the background art is fixed, the drawing paper cannot be placed conveniently when the area of the drawing paper is large, and further drawing is difficult, and meanwhile, the conventional drawing device is generally fixedly arranged on a fixing mechanism of the drawing paper, cannot be adjusted properly according to different sizes of the drawing paper, further causes the situation that the fixing effect of the drawing paper is poor, and influences the experience in the use process.

In order to achieve the purpose, the invention provides the following technical scheme: a drawing device capable of being adjusted according to paper size for drawing comprises a placing plate, wherein a moving groove is formed in the placing plate, two sliding grooves I are formed in the upper side surface and the lower side surface of the moving groove, a sliding block I is movably connected in the four sliding grooves I, the four sliding blocks I are fixedly connected to the upper end and the lower end of the opposite far side of two square plates in a group of two sliding blocks one by one respectively, an L-shaped adjusting plate is fixedly connected to the upper end of the opposite far side of the two square plates, an adjusting and fixing mechanism is fixedly connected to the opposite near end of the two L-shaped adjusting plates, the lower surfaces of the two adjusting and fixing mechanisms are tightly attached to the upper surface of the placing plate, clamping grooves are formed in the left side and the right side of the rear end of the placing plate, clamping blocks are movably connected in the two clamping grooves, and the rear ends of the two clamping blocks are fixedly connected to the left side and the right side of the front end of an extending plate respectively, and the front side surface of the extension plate is tightly attached to the rear side surface of the placing plate, the two clamping blocks are respectively movably connected with the two inserting rods through the inserting holes formed in the clamping blocks, the lower ends of the two inserting rods penetrate through the lower side walls of the two clamping grooves respectively and are arranged outside the placing plate, the two inserting rods are respectively sleeved with a first spring, the upper ends of the first springs are fixedly connected to the lower surface of the placing plate, and the lower ends of the first springs are fixedly connected to the lower sides of the two inserting rods respectively.

According to a preferable technical scheme of the invention, the front end and the rear end of each of the two square plates are fixedly connected with a first tooth-shaped block, the four first tooth-shaped blocks are arranged in the moving groove, the four first tooth-shaped blocks are respectively movably connected with four second tooth-shaped blocks, telescopic rods are respectively fixedly connected to the middle positions of the opposite far surfaces of the two groups of the four second tooth-shaped blocks, and the opposite far ends of the two groups of the four telescopic rods are respectively fixedly connected to the front side surface and the rear side surface of the moving groove.

As a preferred technical scheme of the invention, two springs are sleeved on four telescopic rods, two groups of four springs are fixedly connected with the front side surface and the rear side surface of the moving groove respectively at the opposite far ends of the two springs, two groups of four springs are fixedly connected with two groups of four toothed blocks at the opposite near ends of the two springs, the upper end and the lower end of the two toothed blocks are fixedly connected with two sliding blocks, and the two groups of eight sliding blocks are divided into two groups which are movably connected with the inner parts of two sliding grooves which are formed in the upper side surface and the lower side surface of the moving groove respectively.

According to a preferred technical scheme, pull plates are fixedly connected to the left side and the right side of the two opposite far surfaces of the two tooth-shaped blocks correspondingly, the four pull plates are arranged on the front side and the rear side of the two square plates in a group in pairs respectively, two fixing plates are fixedly connected to the front end and the rear end of the right side of the lower surface of the placing plate, and the four fixing plates are fixedly connected to the left end and the right end of the two fixing rods in a group in pairs respectively.

As a preferred technical scheme of the invention, the two fixing rods are respectively movably connected with two connecting blocks, the inner parts of which are provided with circular through holes, the lower ends of the two connecting blocks are respectively movably connected with connecting rods, the lower ends of the two connecting rods are respectively movably connected with the upper surface of the bottom plate through hinge seats, the placing plate is respectively movably connected with the upper ends of the two other connecting rods through another hinge seat arranged on the left side of the lower surface, and the lower ends of the two other connecting rods are respectively movably connected with the upper surfaces of the two supporting blocks.

As a preferred technical scheme, the relatively close ends of the two supporting blocks are fixedly connected with the front end and the rear end of the supporting plate respectively, the supporting plate is in threaded connection with a threaded rod through a threaded hole formed in the central position of the supporting plate, supporting seats are movably connected to the light rod parts on the left side and the right side of the threaded rod respectively, the two supporting seats are fixedly connected to the upper surface of the bottom plate, and a rotary table is fixedly connected to the right end of the threaded rod.

According to a preferred technical scheme, the adjusting and fixing mechanism comprises a fixing block, the fixing block is fixedly connected with an L-shaped adjusting plate, sliding rods are fixedly connected to the left side and the right side of the rear end face of the fixing block, the two sliding rods are movably connected to the left side and the right side of a square groove formed in the adjusting block respectively, three sliding blocks are fixedly connected to the upper side face and the lower side face of the rear end of each sliding rod respectively, and the four sliding blocks are connected to the inner portions of three sliding grooves formed in the upper side face and the lower side face of the two square grooves respectively in a group in a pairwise mode.

As a preferred technical scheme of the invention, the fixed block and the adjusting block are respectively movably connected with the two pull rods through circular through holes formed in the fixed block and the adjusting block, the lower ends of the two pull rods are respectively and fixedly connected with a circular clamping block, the lower surface of each circular clamping block is tightly attached to the upper surface of the placing plate, the two pull rods are respectively sleeved with a third spring, the lower ends of the three springs are respectively and fixedly connected to the upper surfaces of the two circular clamping blocks, the upper end of the third spring at the front side is fixedly connected to the lower surface of the fixed block, and the upper end of the third spring at the rear side is fixedly connected to the lower surface of the adjusting block.

Compared with the prior art, the invention has the beneficial effects that:

1. the extension plate can be fixed at the rear end of the placing plate through the mutual matching of the inserted rod, the clamping block, the clamping groove and the first spring, the placing area of the device can be increased, the device can place drawing paper with different sizes, meanwhile, the extension plate can be quickly taken down from the device when the extension plate is not needed, the operation process is simple, the distance between the two adjusting and fixing mechanisms can be adjusted through the mutual matching of the square plate, the L-shaped adjusting plate, the first tooth-shaped block, the second tooth-shaped block, the pulling plate, the first sliding block, the first sliding groove, the second sliding groove, the telescopic rod and the second spring, the device can clamp and fix the drawing paper with different sizes, and the situation that the drawing paper moves in the using process is avoided.

2. The distance between the fixed block and the adjusting block can be adjusted by arranging the sliding rod, the third sliding block, the third sliding groove and the square groove in a mutually matched mode, so that the distance between the two circular clamping blocks on the same adjusting and fixing mechanism can be adjusted, the adjusting and fixing mechanism can adjust the distance between the two circular clamping blocks arranged on the adjusting and fixing mechanism according to the difference of drawing paper, the clamping and fixing effects on the drawing paper with different sizes can be further met, the supporting block and the supporting plate can be driven to move up and down through the arranged rotary disc, the threaded rod, the connecting block and the fixing rod in a mutually matched mode, the whole height of the device can be adjusted, and the device can be suitable for users with different heights.

Drawings

FIG. 1 is a schematic view of a front sectional perspective structure of a placement board according to the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic top sectional perspective view of the placement board of the present invention;

FIG. 4 is a schematic view of a partially sectioned perspective structure of a placement board according to the present invention;

FIG. 5 is a schematic view of the right side cross-sectional three-dimensional structure of the placement board of the present invention;

FIG. 6 is an enlarged schematic view of the structure at A of the present invention;

fig. 7 is a schematic diagram of a right-view partially-sectioned enlarged three-dimensional structure of the adjusting and fixing mechanism of the invention.

In the figure: the device comprises a placing plate 1, a fixing plate 2, a connecting block 3, a fixing rod 4, a connecting rod 5, a bottom plate 6, a supporting seat 7, a supporting block 8, a threaded rod 9, a supporting plate 10, a rotating disc 11, a moving groove 12, a pulling plate 13, a square plate 14, a square plate 15L-shaped adjusting plate, an extending plate 16, a 17-adjusting fixing mechanism, a fixing block 171, a spring III 172, a pull rod 173, a round clamping block 174, a square groove 175, a sliding groove III 176, an adjusting block 177, a sliding rod 178, a sliding block III 179, a sliding groove I18, a sliding block I19, a tooth-shaped block I20, a tooth-shaped block II 21, a telescopic rod 22, a spring II 23, a clamping groove 24, an inserting rod 25, a clamping block 26, a spring I27, a sliding block II 28 and a sliding groove II 29.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

As shown in fig. 1 to 7, the present invention provides a technical solution: a drawing device capable of being adjusted according to paper size for drawing comprises a placing plate 1, wherein a moving groove 12 is formed in the placing plate 1, two sliding grooves I18 are formed in the upper side surface and the lower side surface of the moving groove 12, sliding blocks I19 are movably connected in the four sliding grooves I18, the four sliding blocks I19 are fixedly connected to the upper end and the lower end of the opposite close side of two square plates 14 respectively in a pairwise mode, the movement direction of the square plates 14 can be limited through the mutual matching between the arranged sliding blocks I19 and the sliding grooves I18, the maximum pulling distance of the two square plates 14 can be limited, the square plates 14 are prevented from being pulled out from the moving groove 12, L-shaped adjusting plates 15 are fixedly connected to the upper ends of the opposite far side of the two square plates 14, adjusting and fixing mechanisms 17 are fixedly connected to the opposite close ends of the two L-shaped adjusting plates 15, and the lower surfaces of the two adjusting and fixing mechanisms 17 are tightly attached to the upper surface of the placing plate 1, the L-shaped adjusting plate 15 can be supported and fixed by the arranged square plates 14, the two L-shaped adjusting plates 15 can be driven to move by driving the two square plates 14 to move, and the purpose of adjusting the positions of the two adjusting and fixing mechanisms 17 is further achieved, so that the device can adjust the two adjusting and fixing mechanisms 17 to proper positions according to the size of the drawing paper placed on the placing plate 1, thereby fixing the drawing paper, effectively avoiding the phenomenon that the drawing paper moves in the using process, clamping grooves 24 are respectively formed in the left side and the right side of the rear end of the placing plate 1, clamping blocks 26 are respectively and movably connected in the two clamping grooves 24, the rear ends of the two clamping blocks 26 are respectively and fixedly connected to the left side and the right side of the front end of the extending plate 16, the front side of the extending plate 16 is tightly attached to the rear side of the placing plate 1, and the two clamping blocks 26 are respectively and movably connected with the two inserting rods 25 through the inserting holes formed in the clamping blocks, the lower ends of the two insert rods 25 respectively penetrate through the lower side walls of the two clamping grooves 24 and are arranged outside the placing plate 1, the two insert rods 25 are respectively sleeved with the first springs 27, the upper ends of the first springs 27 are respectively fixedly connected to the lower surface of the placing plate 1, the lower ends of the first springs 27 are respectively fixedly connected to the lower sides of the two insert rods 25, the two insert rods 25 can be driven to move upwards through the arranged first springs 27, the two clamping blocks 26 can be respectively fixed inside the two clamping grooves 24 under the mutual matching of the insertion holes formed inside the two clamping blocks 26, so that the effect of fixing the extending plate 16 at the rear end of the placing plate 1 is achieved, the placing area of the device can be adjusted according to the size of the placed drawing paper, the extending plate 16 can be quickly detached from the placing plate 1 when the extending plate 16 is not needed, the front end and the rear end of each of the two square shaping plates 14 are respectively and fixedly connected with a tooth-shaped block 20, the four tooth-shaped blocks one 20 are all arranged inside the moving groove 12, the four tooth-shaped blocks one 20 are respectively movably connected with the four tooth-shaped blocks two 21, the telescopic rods 22 are fixedly connected to the opposite far surfaces of the four tooth-shaped blocks two 21 in a group, the opposite far ends of the four telescopic rods 22 in a group are respectively fixedly connected to the front side surface and the back side surface inside the moving groove 12, springs two 23 are sleeved on the four telescopic rods 22, the opposite far ends of the springs two 23 in a group are respectively fixedly connected to the front side surface and the back side surface inside the moving groove 12, the opposite near ends of the springs two 23 in a group are respectively fixedly connected with the four tooth-shaped blocks two 21, the upper end and the lower end of the four tooth-shaped blocks two 21 are respectively fixedly connected with sliding blocks two 28, the eight sliding blocks two 28 in a group are divided into two groups which are respectively movably connected to the inside four sliding grooves two 29 respectively formed in the upper side surface and the lower side surface inside the moving groove 12, and the tooth-shaped blocks two 21 can be matched with each other through the arranged sliding blocks two 28 and the sliding grooves two sliding blocks two 28 The direction plays a role of limiting, the two corresponding toothed blocks two 21 can be driven to be close to each other through the mutual matching between the arranged springs two 23 and the telescopic rods 22, further the toothed blocks two 21 can be meshed with the corresponding toothed blocks one 20, further the effect of limiting the movement of the square template 14 is achieved, pulling plates 13 are fixedly connected on the opposite far surfaces of the two toothed blocks two 21 corresponding to the left side and the right side, two groups of four pulling plates 13 are respectively arranged at the front side and the rear side of the two square templates 14, the corresponding toothed blocks two 21 can be driven to move through the pulling of the pulling plates 13 arranged, two fixed plates 2 are fixedly connected at the front end and the rear end of the right side of the lower surface of the placing plate 1, two groups of four fixed plates 2 are respectively fixedly connected with the left end and the right end of the two fixed rods 4, and the two fixed rods 4 are respectively movably connected with the two connecting blocks 3 with the circular through holes arranged inside, the fixing plate 2 can support and fix the fixing rod 4, the fixing rod 4 can support the connecting block 3, and can limit the movement direction of the connecting block 3, the lower ends of the two connecting blocks 3 are movably connected with the connecting rods 5, the lower ends of the two connecting rods 5 are respectively movably connected with the upper surface of the bottom plate 6 through the arranged hinge seats, the placing plate 1 is respectively movably connected with the upper ends of the two other connecting rods 5 through the two other hinge seats arranged on the left side of the lower surface, the lower ends of the two other connecting rods 5 are respectively movably connected with the upper surfaces of the two supporting blocks 8, the opposite near ends of the two supporting blocks 8 are respectively fixedly connected with the front end and the rear end of the supporting plate 10, the supporting plate 10 is in threaded connection with the threaded rod 9 through the threaded hole arranged in the supporting plate, and the left side and right side light rod parts of the threaded rod 9 are respectively movably connected with the supporting seats 7, two supporting seats 7 are fixedly connected to the upper surface of the bottom plate 6, the right end of the threaded rod 9 is fixedly connected with a rotary table 11, the threaded rod 9 can be supported by the arranged supporting seats 7, the threaded rod 9 can be driven to rotate by rotating the arranged rotary table 11, the supporting plate 10 can be driven to move leftwards under the limitation of the connecting rod 5 and the supporting block 8 by the rotation of the threaded rod 9, and further the placing plate 3 can be driven to move upwards under the mutual cooperation of the arranged connecting rod 5, the fixed rod 4 and the connecting block 3, so that the effect of adjusting the whole height of the device is achieved, the device can adapt to users with different heights, the adjusting and fixing mechanism 17 comprises a fixed block 171, the fixed block 171 is fixedly connected with an L-shaped adjusting plate 15, the left side and the right side of the rear end surface of the fixed block 171 are fixedly connected with sliding rods 178, and the two sliding rods 178 are respectively movably connected inside square grooves 175 which are respectively arranged on the left side and the right side inside the adjusting block 177, the upper side and the lower side of the rear end of each sliding rod 178 are fixedly connected with three sliding blocks 179, two of the three sliding blocks 179 are movably connected in a group in two sliding grooves 176 which are respectively arranged on the upper side and the lower side of the inner part of each square groove 175, the fixed block 171 and the adjusting block 177 are respectively movably connected with two pull rods 173 through circular through holes which are arranged in the fixed block and the adjusting block, the lower ends of the two pull rods 173 are respectively and fixedly connected with circular clamping blocks 174, the lower surface of each circular clamping block 174 is tightly attached to the upper surface of the placing plate 1, the two pull rods 173 are respectively sleeved with three springs 172, the lower ends of the three springs 172 are respectively and fixedly connected to the upper surfaces of the two circular clamping blocks 171, the upper end of the front spring three 172 is fixedly connected to the lower surface of the fixed block 171, the upper end of the rear spring three 172 is fixedly connected to the lower surface of the adjusting block 177, and the sliding grooves 176 are mutually matched to limit the movement direction of the sliding rods 178, meanwhile, the situation that the sliding rod 178 is pulled out of the corresponding square groove 175 can be avoided, the drawing paper can be fixed on the placing plate 1 through the mutual matching of the arranged fixing block 171, the adjusting block 177, the pull rod 172, the spring III 172 and the circular clamping plate 174, and therefore the phenomenon that the drawing paper moves in the surface drawing process can be avoided.

The method comprises the following operation steps:

when the device is used, drawing paper is placed on the placing plate 1, whether the extending plate 16 needs to be fixed at the rear end of the placing plate 1 is selected according to the size of the drawing paper, when the extending plate 16 needs to be installed, the two inserting rods 25 are pulled downwards respectively, then the two clamping blocks 26 arranged on the extending plate 16 are respectively inserted into the two clamping grooves 24, the pulled inserting rods 25 are loosened, the inserting rods 25 can be driven to move upwards under the action of the arranged springs 27, the two clamping blocks 26 can be fixed inside the two clamping grooves 24 respectively, the installation of the extending plate 16 is completed at the moment, then the two corresponding pulling plates 13 are pulled towards the front side and the rear side respectively according to the size of the drawing paper, the two corresponding tooth-shaped blocks 21 are driven to be away from each other, the tooth-shaped blocks 21 are not meshed with the corresponding tooth-shaped blocks 20 at the moment, the square plate 14 can be driven to move inside the moving groove 12, and then the two adjusting and fixing mechanisms 17 are driven to move towards the left side and the right side respectively under the action of the set L-shaped adjusting plate 15 The side moves to enable the two adjusting and fixing mechanisms 17 to respectively fix the left side and the right side of the drawing paper, and at the moment, the pulling plate 13 is loosened;

when the distance between the fixed block 171 and the adjusting block 177 needs to be adjusted to achieve better clamping and fixing of the drawing paper with different sizes, firstly, the two pull rods 173 arranged on the same adjusting and fixing mechanism 17 are respectively pulled upwards to drive the two circular clamping blocks 174 to move upwards, at the moment, the two circular clamping blocks 174 are not contacted with the upper surface of the placing plate 1, the adjusting block 177 is pulled backwards to achieve the distance between the fixed block 171 and the adjusting block 177, after the adjustment is completed, the set pull rods 173 are loosened to drive the circular clamping blocks 174 to move downwards under the action of the set springs three 172 to achieve the clamping and fixing effect of the drawing paper, so that the device can meet the fixing effect of the drawing paper with different sizes, when the overall height of the device needs to be adjusted, the rotating disc 11 which is rotationally drives the threaded rod 9 to rotate, and the placing plate 3 can be driven to move upwards under the mutual matching of the set connecting rod 5, the fixed rod 4 and the connecting block 3, thereby reach the effect of adjusting the device overall height for the device can adapt to the user of different heights.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drawing is with drawing device that can adjust according to paper size, is including placing board (1), its characterized in that: a moving groove (12) is formed in the placing plate (1), two sliding grooves I (18) are formed in the upper side face and the lower side face of the inner portion of the moving groove (12), four sliding grooves I (18) are movably connected with sliding blocks I (19) in the inner portion, every two sliding blocks I (19) are fixedly connected to the upper end and the lower end of the side, close to the two square plates (14), of the two square plates (14), the upper end, far away from the side, of the side, far away from the side, of the two square plates (14), is fixedly connected with an L-shaped adjusting plate (15), the opposite close end, close to the two L-shaped adjusting plates (15), is fixedly connected with adjusting and fixing mechanisms (17), the lower surfaces of the two adjusting and fixing mechanisms (17) are tightly attached to the upper surface of the placing plate (1), clamping grooves (24) are formed in the left side and the right side of the rear end of the placing plate (1), and clamping blocks (26) are movably connected in the two clamping grooves (24), the rear ends of the two fixture blocks (26) are fixedly connected to the left side and the right side of the front end of the extension plate (16) respectively, the front side of the extension plate (16) is tightly attached to the rear side of the placement plate (1), the two fixture blocks (26) are movably connected with the two insertion rods (25) through the insertion holes formed in the fixture blocks respectively, the lower ends of the two insertion rods (25) penetrate through the lower side walls of the two clamping grooves (24) respectively and are arranged outside the placement plate (1), the two insertion rods (25) are sleeved with the first springs (27), the two springs (27) are fixedly connected to the upper ends of the first springs (27) respectively and are fixedly connected to the lower sides of the two insertion rods (25).

2. A drawing device according to claim 1, wherein the drawing device is adjustable according to paper size: two equal fixedly connected with profile of tooth piece (20) in both ends around square plate (14), and four profile of tooth piece (20) all set up inside shifting chute (12), four profile of tooth piece (20) respectively with four profile of tooth piece two (21) swing joint, four equal fixedly connected with telescopic link (22) on two liang of its relative faces of keeping away from of profile of tooth piece two (21), four two liang of its relative ends of keeping away from of telescopic link (22) are fixed connection respectively on the inside front and back both sides face of shifting chute (12).

3. A drawing device according to claim 2, wherein the drawing device is adjustable according to paper size: four all cup jointed spring two (23) on telescopic link (22), four two liang of its relative ends of keeping away from of spring two (23) are fixed connection respectively on the inside front and back both sides face of shifting chute (12), four two liang of its relative ends of being close to of spring two (23) are respectively with four profile of tooth piece two (21) fixed connection, four equal fixedly connected with slider two (28) in both ends about profile of tooth piece two (21), eight four groups of two (28) of slider divide into two sets of difference swing joint and all set up inside four spout two (29) about shifting chute (12) inside both sides face.

4. A drawing device according to claim 2, wherein the drawing device is adjustable according to paper size: the left and right sides corresponds two equal fixedly connected with arm-tie (13), four on the relative distancing face of two (21) tooth-shaped blocks two liang a set of both sides around setting up at two square plate (14) respectively of arm-tie (13), place two fixed plates (2) of equal fixedly connected with in both ends around board (1) lower surface right side, four two liang a set of both ends fixed connection about with two fixed rods (4) respectively of fixed plate (2).

5. A painting apparatus according to claim 4, adapted for use with paintings and adapted to be adjusted according to the size of the paper, wherein: two dead lever (4) all set up the connecting block (3) swing joint of circular through-hole with two inside respectively, two the equal swing joint of lower extreme of connecting block (3) has connecting rod (5), two the lower extreme of connecting rod (5) is respectively through the articulated seat swing joint who sets up at the upper surface of bottom plate (6), place board (1) through two another articulated seats that lower surface left side set up respectively with the upper end swing joint of two another connecting rods (5), two another the lower extreme of connecting rod (5) is swing joint respectively at the upper surface of two supporting shoes (8).

6. A painting apparatus according to claim 5, characterised in that: the supporting blocks (8) are fixedly connected with the front end and the rear end of the supporting plate (10) at the opposite close ends respectively, the supporting plate (10) is in threaded connection with a threaded rod (9) through a threaded hole formed in the supporting plate, the supporting seats (7) are movably connected to the left side and the right side of the threaded rod (9), the supporting seats (7) are fixedly connected to the upper surface of the bottom plate (6), and the right end of the threaded rod (9) is fixedly connected with a turntable (11).

7. A drawing device according to claim 1, wherein the drawing device is adjustable according to paper size: adjust fixed establishment (17) including fixed block (171), fixed block (171) and L type regulating plate (15) fixed connection, fixed block (171) rear end face left and right sides equal fixedly connected with slide bar (178), two slide bar (178) swing joint respectively inside square groove (175) that regulating block (177) inside left and right sides all seted up two equal fixedly connected with slider three (179), four on the side face about slide bar (178) rear end two double-liang a set of respectively swing joint of slider three (179) inside three (176) of spout that the side face all seted up about two square groove (175) are inside.

8. A drawing device according to claim 1, wherein the drawing device is adjustable according to paper size: fixed block (171) and regulating block (177) all through its inside circular through hole of seting up respectively with two pull rod (173) swing joint, two the equal fixedly connected with circular clamp splice (174) of lower extreme of pull rod (173), and the upper surface of placing board (1) is all hugged closely to the lower surface of every circular clamp splice (174), two all cup jointed three (172) of spring on pull rod (173), two the lower extreme of three (172) of spring is fixed connection respectively at the upper surface of two circular clamp splices (171), the front side the upper end fixed connection of three (172) of spring is on the lower surface of fixed block (171), the rear side the upper end fixed connection of three (172) of spring is on the lower surface of regulating block (177).