CN113787868B

CN113787868B - Preschool education is with multi-functional drawing device

Info

Publication number: CN113787868B
Application number: CN202111277602.8A
Authority: CN
Inventors: 闫相伟
Original assignee: Dongying Vocational College Of Science & Technology
Current assignee: Dongying Vocational College Of Science & Technology
Priority date: 2021-10-30
Filing date: 2021-10-30
Publication date: 2022-05-24
Anticipated expiration: 2041-10-30
Also published as: CN113787868A

Abstract

The invention discloses a multifunctional drawing device for preschool education, and belongs to the technical field of preschool education. The utility model provides a preschool education is with multi-functional drawing device, includes anterior folded sheet, the rear of anterior folded sheet is connected with the rear portion folded sheet, the bottom of anterior folded sheet is connected with strutting arrangement, just strutting arrangement is located the bottom of rear portion folded sheet, the top of rear portion folded sheet is connected with the drawing board, the rear of rear portion folded sheet is connected with controlling means, the front end of rear portion folded sheet is equipped with the device that opens and shuts. The invention solves the problems that the traditional drawing board for preschool education has fewer functions and is inconvenient to carry.

Description

Preschool education is with multi-functional drawing device

Technical Field

The invention relates to the technical field of preschool education, in particular to a multifunctional drawing device for preschool education.

Background

Preschool education is education in which parents and young children systematically, programmatically and scientifically stimulate the brain of children to gradually improve the functions of various parts of the brain, and preschool education is one of important contents of preschool education and forms part of a scientific system of preschool education. Children are the basic stage of intelligence development of life and the fastest development period, and proper and correct preschool education plays a great role in the intelligence development of children and the development of children in the future. None of the development and development of very young children is associated with adequate and correct preschool education, particularly in the intelligence. Preschool intellectual education is a multi-aspect cultivation process. There is also a non-trivial amount of mental health concern for preschool children. Children of this age are extremely immature in mental development and require active guidance from parents and young teachers. Many of present children are solitary children, and self-awareness is very strong, lacks the concern to other people, does not understand the score and shares, consequently should guide children to learn to care about other people, learn to share, be happy to share as head of a family and preschool teacher, and preschool education drawing board is as an indispensable one in the preschool education instrument. The prior drawing board for preschool education has the following defects:

1. the traditional preschool education is used for the drawing board, and the drawing board cannot be folded, is inconvenient to move, can only be used indoors, and is inconvenient to use outdoors;

2. traditional preschool education is with drawing board function is less, can only use as ordinary drawing board, does not accord with multi-functional theory.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a multifunctional painting device for preschool education, which solves the problems in the background technology:

the traditional drawing board for preschool education has fewer functions and is inconvenient to carry.

2. Technical scheme

The utility model provides a preschool education is with multi-functional drawing device, includes anterior folded sheet, the rear of anterior folded sheet is connected with the rear portion folded sheet, the bottom of anterior folded sheet is connected with strutting arrangement, just strutting arrangement is located the bottom of rear portion folded sheet, the top of rear portion folded sheet is connected with the drawing board, the rear of rear portion folded sheet is connected with controlling means, the front end of rear portion folded sheet is equipped with the device that opens and shuts.

Preferably, the anterior folded sheet includes the front bezel, the front end gomphosis of front bezel is connected with two drawers, the front end of drawer is equipped with the kerve, the both sides rear end fixedly connected with of drawer removes the fastener, the inside of front bezel is equipped with the shifting chute, just it is located the inside of shifting chute to remove the fastener, the right side fixedly connected with of front bezel hangs the post, the outside of hanging the post is connected with the string, the other end of string is connected with the painting brush, just the front end of establishing at the front bezel is inserted to the painting brush.

Preferably, the rear portion folded sheet includes the back plate, the front end of back plate rotates and is connected with the main shaft, just the main shaft rotates with the rear end of front bezel to be connected, the rear end of back plate rotates and is connected with the major axis, the side channel has been seted up to the both sides of back plate, the side channel has also been seted up to the latter half both sides of front bezel.

Preferably, the supporting device comprises two supporting legs a and two supporting legs B, the top of the supporting legs a is movably inserted in the bottom of the front plate, the top of the supporting legs B is movably inserted in the bottom of the rear plate, a connecting shaft is inserted in the middle of the supporting legs a, the connecting shaft is inserted in the middle of the supporting legs B, two rotating shafts a are fixedly connected to the inner sides of the tops of the supporting legs a, semicircular blocks are fixedly connected to the other ends of the rotating shafts a and located inside the moving groove, rollers are movably connected to the bottoms of the supporting legs B, and the inner sides of the tops of the supporting legs B are connected through the rotating shafts B.

Preferably, the drawing board comprises a board body, side fasteners are fixedly arranged on two sides of the bottom of the board body, the side fasteners are inserted into the side grooves, two embedding grooves are formed in the rear portion of the board body, two movable rods are movably connected to the inner sides of the tops of the embedding grooves respectively, the bottoms of the movable rods are fixedly connected with the two ends of the long shaft respectively, an iron plate is arranged inside the board body, and the front end of the board body is connected with a magnetic suction block.

Preferably, controlling means includes the shell, shell fixed connection is at the rear middle part of backplate, the fixed cover in the middle part outside of major axis is equipped with sector gear, the bottom fixedly connected with bracing piece of backplate, the inboard of bracing piece is rotated and is connected with the minor axis, the fixed cover in the outside of minor axis is equipped with connecting gear, and connecting gear and sector gear meshing transmission, the fixed cover in the outside of pivot B is equipped with the driving gear, and the driving gear with connect gear meshing transmission.

Preferably, the opening and closing device comprises a groove, the groove is formed in the top of the rear plate and is embedded with the handle, a vertical groove is formed in the bottom of the groove, a bottom spring is fixedly connected to the inner wall of the bottom of the vertical groove, a lifting block is fixedly connected to the top of the bottom spring and is located at the bottom of the handle, a control groove is formed in the front end of the vertical groove, a control spring is fixedly connected to the inner wall of the front end of the control groove, a moving block is fixedly connected to the rear end of the control spring and is located above the lifting block, a pressing groove is formed in the top of the moving block, a button is inserted into the top of the rear plate, and the button is located above the pressing groove.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. the corners of the front plate and the back plate are polished to ensure the front plate and the back plate to be smooth and prevent children from being collided and injured, the front folding plate and the back folding plate can be folded together through the special structural design, meanwhile, the supporting foot A and the supporting foot B are folded and folded together, the carrying is convenient when the bicycle is going out, when the bicycle is used, the handle is lifted, the two sides of the front plate and the rear plate can sink and fold under the action of the supporting device and the self gravity, the two supporting feet can be stacked together in the folding process, the bottoms of the two supporting feet are provided with anti-skid grains to ensure the stability of the device when the device is opened, the bottom of the supporting foot B is movably connected with a roller, and the position of the roller is specially designed, when the device is unfolded on the ground, the device is not contacted with the ground, and when the device is folded together, the whole device can be inclined, and then a child can pull the handle to move under the action of the rollers.

2. The invention realizes the linkage of the device by utilizing the control device, so that the folding process of the device can be finished by only one step without manual multiple operations for folding the device, meanwhile, the device has various functions, not only can be used as a drawing board, but also can be used as a table for children, and also can be used as a stool for adults in special periods, three gears are arranged in the control device, the sector gear is respectively connected with the movable rod through a long shaft, the driving gear is connected with the supporting leg B through a rotating shaft B, the connecting gear is connected with the sector gear and the driving gear, the angle of the drawing board can be adjusted, the use by children is convenient, when the movable rod is completely folded in the embedding groove, the plate body is positioned at the last of the back plate, and the two form an angle of 90 degrees, at the moment, the latch of the sector gear is contacted with the latch of the connecting gear, because the supporting leg B is kept fixed when the device is unfolded, the driving gear can not rotate, so the sector gear can not rotate, the plate body can not rotate backwards, the device can be used as a desk for children and can also be used as a chair for adults, the plate body can be a backrest and can not turn backwards, when the device needs to be folded, an included angle between the supporting leg B and the rear plate is changed from 45 degrees to 170 degrees, 125 degrees is increased, meanwhile, an included angle between the plate body and the rear plate is changed from 90 degrees to 180 degrees, 90 degrees is increased, so the ratio of the radius of the sector gear to the radius of the driving gear needs to be set to be 25:18, synchronous rotation of the sector gear and the driving gear can be realized, the latch of the sector gear is designed to enable the drawing board to be just meshed with the connecting gear when the drawing board is pushed to the rearmost part of the rear plate, synchronous rotation can be realized when the drawing board is folded, the movable rod can freely rotate when the drawing board is unfolded, two drawers are inserted at the front end of the front plate, and can be used for placing pigments or other articles, the drawer can not be opened when the device is folded through special design, so that the drawer is prevented from being accidentally opened when the device is moved, and articles in the drawer can scatter.

3. The device comprises a groove, a lifting block, a pressing groove, a button, a moving block, a control spring, a pressing groove and a bottom spring, wherein the lifting block is arranged in the groove, the pressing groove is arranged at the bottom of the groove, the lifting block is arranged at the bottom of the groove, the pressing groove is arranged at the bottom of the groove, the handle is embedded into the groove when the device is changed from a folded state to an unfolded state, the handle presses the lifting block to move downwards, then the outer side of the lifting block is separated from the rear end of the moving block when the handle is moved to the bottommost part, the moving block moves backwards under the action of the control spring, the lifting block is clamped and cannot rise, when the device is changed from the unfolded state to the folded state, the button is pressed and can only vertically move downwards in the pressing groove, the pressing groove is in a trapezoid shape, the moving block is driven to move forwards and is separated from the top of the lifting block, the lifting block is upwards bounced under the action of the bottom spring, the handle is popped from the groove, and then the handle is pulled to realize the folding of the device.

Drawings

FIG. 1 is an overall view of the present invention when deployed;

FIG. 2 is another schematic view of the present invention at an expanded angle;

FIG. 3 is a general schematic view of the present invention when folded;

FIG. 4 is a cross-sectional view of the opening and closing device of the present invention;

FIG. 5 is an internal view of the control device of the present invention;

FIG. 6 is a cross-sectional view of a front plate of the present invention;

FIG. 7 is a diagram illustrating different states of a semicircle block according to the present invention.

The reference numbers in the figures illustrate: 1. a front folding plate; 101. a front plate; 102. a drawer; 103. groove drawing; 104. moving the clamping piece; 105. a moving groove; 106. hanging a column; 107. a string; 108. painting brushes; 109. a handle; 2. a rear folding plate; 201. a back plate; 202. a long axis; 203. a side groove; 204. a main shaft; 3. a support device; 301. supporting feet A; 302. a supporting leg B; 303. a connecting shaft; 304. a roller; 305. a rotating shaft B; 306. a rotating shaft A; 307. a semicircular block; 4. a drawing board; 401. a plate body; 402. side clamping pieces; 403. embedding a groove; 404. a movable rod; 405. a magnetic block; 5. a control device; 501. a housing; 502. a sector gear; 503. a connecting gear; 504. a minor axis; 505. a support bar; 506. a driving gear; 6. an opening and closing device; 601. a groove; 602. a vertical slot; 603. a bottom spring; 604. a lifting block; 605. a moving block; 606. pressing the groove; 607. a control spring; 608. a button; 609. and (4) controlling the groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, a multifunctional painting device for preschool education comprises a front folding plate 1, a rear folding plate 2 connected to the rear of the front folding plate 1, a supporting device 3 connected to the bottom of the front folding plate 1 and located at the bottom of the rear folding plate 2, a drawing board 4 connected to the top of the rear folding plate 2, a control device 5 connected to the rear of the rear folding plate 2, and an opening and closing device 6 arranged at the front end of the rear folding plate 2.

Front portion folding plate 1 includes front bezel 101, the front end gomphosis of front bezel 101 is connected with two drawers 102, the front end of drawer 102 is equipped with draw groove 103, drawer 102's both sides rear end fixedly connected with removes fastener 104, the inside of front bezel 101 is equipped with shifting chute 105, and remove fastener 104 and be located the inside of shifting chute 105, the right side fixedly connected with of front bezel 101 hangs post 106, the outside of hanging post 106 is connected with string 107, the other end of string 107 is connected with painting brush 108, and painting brush 108 inserts the front end of establishing at front bezel 101.

The rear folding plate 2 includes a rear plate 201, a main shaft 204 is rotatably connected to the front end of the rear plate 201, the main shaft 204 is rotatably connected to the rear end of the front plate 101, a long shaft 202 is rotatably connected to the rear end of the rear plate 201, side grooves 203 are formed in both sides of the rear plate 201, and the side grooves 203 are also formed in both sides of the rear half section of the front plate 101.

Strutting arrangement 3 includes two supporting legs A301 and two supporting legs B302, the bottom of establishing at front bezel 101 is inserted in the top activity of supporting legs A301, the bottom of establishing at backplate 201 is inserted in the top activity of supporting legs B302, the connecting axle 303 is inserted and is equipped with in the middle part of supporting legs A301, and the connecting axle 303 is inserted and is established at the middle part of supporting legs B302, the inboard equal fixedly connected with pivot A306 in top of two supporting legs A301, the other end fixedly connected with semicircle piece 307 of pivot A306, and semicircle piece 307 is located the inside of shifting chute 105, the bottom swing joint of supporting legs B302 has gyro wheel 304, the top inboard of two supporting legs B302 is connected through pivot B305.

The corners of the front plate 101 and the rear plate 201 are polished to ensure the corners to be smooth and round, and children are prevented from being collided and injured, the front folding plate 1 and the rear folding plate 2 can be folded together through a special structural design, and the supporting leg A301 and the supporting leg B302 are folded and folded together, so that the foldable children chair is convenient to carry when going out, and is specifically as follows: the rear folding plate 2 comprises a rear plate 201, the front end of the rear plate 201 is rotatably connected with a main shaft 204, the main shaft 204 is rotatably connected with the rear end of the front plate 101, the rear end of the rear plate 201 is rotatably connected with a long shaft 202, two sides of the rear plate 201 are provided with side grooves 203, two sides of the rear half section of the front plate 101 are also provided with the side grooves 203, the supporting device 3 comprises two supporting legs A301 and two supporting legs B302, the tops of the supporting legs A301 are movably inserted at the bottom of the front plate 101, the tops of the supporting legs B302 are movably inserted at the bottom of the rear plate 201, a connecting shaft 303 is inserted in the middle of the supporting legs A301, the connecting shaft 303 is inserted in the middle of the supporting legs B302, when the rear folding device is used, the front plate 101 and the rear plate 201 are lifted by a handle 109, two sides of the supporting device 3 and the two supporting legs are sunk and folded under the action of self gravity, the two supporting legs are also stacked together in the folding process, the bottoms of the two supporting legs are provided with anti-skid grains, and the stability of the folding device when the device is opened is ensured, the bottom of the supporting foot B302 is movably connected with a roller 304, the position of the roller 304 is specially designed, when the device is opened on the ground, the roller is not contacted with the ground, when the device is folded together, the whole device can be inclined, and then the child can pull the handle 109 to move by means of the roller 304.

Example 2:

referring to fig. 5-7, the difference between the embodiment 1 and the front folding plate 1 is that the front folding plate 1 includes a front plate 101, two drawers 102 are embedded and connected to the front end of the front plate 101, a pull groove 103 is disposed at the front end of each drawer 102, movable clips 104 are fixedly connected to the rear ends of the two sides of each drawer 102, a moving groove 105 is disposed inside the front plate 101, the movable clips 104 are located inside the moving groove 105, a hanging column 106 is fixedly connected to the right side of the front plate 101, a string 107 is connected to the outer side of the hanging column 106, a painting brush 108 is connected to the other end of the string 107, and the painting brush 108 is inserted and installed at the front end of the front plate 101.

Drawing board 4 includes plate body 401, and side fastener 402 has set firmly in plate body 401's bottom both sides, and side fastener 402 is inserted and is established in the inside of side groove 203, and two slots 403 of inlaying have been seted up at plate body 401's rear portion, and the equal swing joint in top inboard of two slots 403 has movable rod 404, and the bottom of two movable rod 404 respectively with the both ends fixed connection of major axis 202, plate body 401's inside is equipped with iron plate, and plate body 401's front end is connected with magnetism and inhales piece 405.

The control device 5 comprises a shell 501, the shell 501 is fixedly connected to the rear middle portion of the back plate 201, a sector gear 502 is fixedly sleeved on the outer side of the middle portion of the long shaft 202, a support rod 505 is fixedly connected to the bottom of the back plate 201, a short shaft 504 is rotatably connected to the inner side of the support rod 505, a connecting gear 503 is fixedly sleeved on the outer side of the short shaft 504, the connecting gear 503 is in meshing transmission with the sector gear 502, a driving gear 506 is fixedly sleeved on the outer side of the rotating shaft B305, and the driving gear 506 is in meshing transmission with the connecting gear 503.

The invention realizes the linkage of the device by using the control device 5, so that the folding process of the device can be finished by only one step without manual multiple operations for folding the device, meanwhile, the device has various functions, not only can be used as a painting board, but also can be used as a table for children, and also can be used as a stool for adults in special periods, three gears are arranged inside the control device 5, the three gears are respectively a sector gear 502 connected with a movable rod 404 through a long shaft 202, a driving gear 506 is connected with a supporting leg B302 through a rotating shaft B305, a connecting gear 503 is connected with the sector gear 502 and the driving gear 506, the angle of the painting board 4 can be adjusted, the angle of the supporting leg is convenient for children to use, when the movable rod 404 is completely folded inside the embedding groove, the board body 401 is positioned at the last of the back board 201, and the two form an angle of 90 degrees, at the moment, the latch of the sector gear 502 is contacted with the latch 403 of the connecting gear 503, and the B302 keeps fixed when the device is unfolded, the driving gear 506 cannot rotate, so the sector gear 502 cannot rotate, the plate body 401 cannot rotate backwards, the device can be used as a desk for children and a chair for adults, the plate body 401 can be a backrest and cannot turn backwards, when the device needs to be folded, an included angle between the supporting leg B302 and the rear plate 201 is changed from 45 degrees to 170 degrees, 125 degrees is increased, meanwhile, an included angle between the plate body 401 and the rear plate 201 is changed from 90 degrees to 180 degrees, 90 degrees is increased, so the ratio of the radius of the sector gear 502 to the radius of the driving gear 506 needs to be 25:18, synchronous rotation of the sector gear and the rear plate 201 can be realized, the latch of the sector gear 502 is designed to enable the drawing board 4 to be just meshed with the connecting gear 503 when being pushed to the rear of the rear plate 201, synchronous rotation can be realized when the drawing board is folded, the movable rod 404 can freely rotate when the drawing board is unfolded, two drawers 102 are inserted into the front end of the front plate 101, can place pigment or other articles for use, can realize through special design that drawer 102 can't open when the device is folded to prevent that drawer 102 unexpected opens and make its inside article scatter when the device removes, specifically: equal fixedly connected with pivot A306 in the top inboard of two supporting legs A301, the other end fixedly connected with semicircle piece 307 of pivot A306, and semicircle piece 307 is located the inside of shifting chute 105, when the device expandes, the plane one side of semicircle piece 307 coincides with the bottom of shifting chute 105 just, drawer 102 can freely push and pull this moment, when the device is folding, semicircle piece 307 rotates along with the rotation of pivot A306, semicircle piece 307 perk blocks up shifting chute 105 this moment, make drawer 102 can't be taken out, the inside object of drawer 102 can not scatter when guaranteeing the device to remove.

Example 3:

referring to fig. 4, the difference between the

embodiments

1 and 2 is that the opening and closing device 6 includes a groove 601, the groove 601 is disposed on the top of the rear plate 201, the groove 601 is engaged with the handle 109, the bottom of the groove 601 is disposed with a vertical groove 602, a bottom spring 603 is fixedly connected to an inner wall of the bottom of the vertical groove 602, a lifting block 604 is fixedly connected to the top of the bottom spring 603, the lifting block 604 is disposed at the bottom of the handle 109, a control groove 609 is disposed at a front end of the vertical groove 602, a control spring 607 is fixedly connected to an inner wall of a front end of the control groove 609, a moving block 605 is fixedly connected to a rear end of the control spring 607, the moving block 605 is disposed above the lifting block 604, a pressing groove 606 is disposed at the top of the moving block 605, a button 608 is inserted at the top of the rear plate 201, and the button 608 is disposed above the pressing groove 606.

The invention realizes the unfolding and folding of the device by utilizing the opening and closing device 6, when the device is changed from the folding state to the unfolding state, the handle 109 is inserted into the recess 601, and the handle 109 presses the lifter 604 to move downward, then, when the handle 109 is moved to the lowermost portion, the outer side of the lifting block 604 is disengaged from the rear end of the moving block 605, and the moving block 605 is moved rearward by the control spring 607, thereby locking the lifting block 604 from rising, and when the device is changed from the unfolded state to the folded state, when the button 608 is pressed, the button 608 can only move vertically downwards in the pressing groove 606, and the pressing groove 606 is trapezoidal in shape, so that the moving block 605 is driven to move forwards, thereby disengaging from the top of the elevator block 604, at which point the elevator block 604 springs upward under the action of the bottom spring 603, thus, the handle 109 is ejected from the inside of the groove 601, and the folding of the device is realized by pulling the handle 109.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a preschool education is with multi-functional drawing device which characterized in that: the foldable drawing board comprises a front foldable board (1), wherein a rear foldable board (2) is connected to the rear of the front foldable board (1), a supporting device (3) is connected to the bottom of the front foldable board (1), the supporting device (3) is located at the bottom of the rear foldable board (2), a drawing board (4) is connected to the top of the rear foldable board (2), a control device (5) is connected to the rear of the rear foldable board (2), and an opening and closing device (6) is arranged at the front end of the rear foldable board (2);

the front folding plate (1) comprises a front plate (101), two drawers (102) are connected to the front end of the front plate (101) in an embedded mode, a pull groove (103) is formed in the front end of each drawer (102), movable clamping pieces (104) are fixedly connected to the rear ends of the two sides of each drawer (102), a moving groove (105) is formed in the front plate (101), each movable clamping piece (104) is located in the corresponding moving groove (105), a hanging column (106) is fixedly connected to the right side of the front plate (101), a string (107) is connected to the outer side of each hanging column (106), the other end of each string (107) is connected with a painting brush (108), and the painting brush (108) is inserted into the front end of the front plate (101);

the rear folding plate (2) comprises a rear plate (201), the front end of the rear plate (201) is rotatably connected with a main shaft (204), the main shaft (204) is rotatably connected with the rear end of the front plate (101), the rear end of the rear plate (201) is rotatably connected with a long shaft (202), side grooves (203) are formed in two sides of the rear plate (201), and side grooves (203) are also formed in two sides of the rear half section of the front plate (101);

the supporting device (3) comprises two supporting legs A (301) and two supporting legs B (302), the top of the supporting legs A (301) is movably inserted into the bottom of the front plate (101), the top of the supporting legs B (302) is movably inserted into the bottom of the rear plate (201), a connecting shaft (303) is inserted into the middle of the supporting legs A (301), the connecting shaft (303) is inserted into the middle of the supporting legs B (302), a rotating shaft A (306) is fixedly connected to the inner sides of the tops of the two supporting legs A (301), a semicircular block (307) is fixedly connected to the other end of the rotating shaft A (306), the semicircular block (307) is located inside the moving groove (105), when the device is unfolded, one side of the plane of the semicircular block (307) coincides with the bottom of the moving groove (105) right, when the device is folded, the semicircular block (307) is tilted to block the moving groove (105), the bottom of the supporting foot B (302) is movably connected with a roller (304), and the inner sides of the tops of the two supporting feet B (302) are connected through a rotating shaft B (305).

2. The multifunctional painting device for preschool education as claimed in claim 1, wherein: drawing board (4) is including plate body (401), side fastener (402) have been set firmly to the bottom both sides of plate body (401), side fastener (402) are inserted and are established the inside in side groove (203), two inlay groove (403), two have been seted up at the rear portion of plate body (401) the equal swing joint in top inboard of inlaying groove (403) has movable rod (404), two the bottom of movable rod (404) respectively with the both ends fixed connection of major axis (202), the inside of plate body (401) is equipped with iron plate, the front end of plate body (401) is connected with magnetism and inhales piece (405).

3. The multifunctional painting device for preschool education as claimed in claim 1, wherein: the control device (5) comprises a shell (501), the shell (501) is fixedly connected with the middle part of the rear plate (201), a sector gear (502) is fixedly sleeved on the outer side of the middle part of the long shaft (202), a support rod (505) is fixedly connected with the bottom of the rear plate (201), the inner side of the supporting rod (505) is rotatably connected with a short shaft (504), the outer side of the short shaft (504) is fixedly sleeved with a connecting gear (503), and the connecting gear (503) is in meshed transmission with the sector gear (502), the outer side of the rotating shaft B (305) is fixedly sleeved with a driving gear (506), the driving gear (506) is in meshed transmission with the connecting gear (503), the ratio of the radius of the sector gear (502) to the radius of the driving gear (506) is set to be 25:18, the latch of the sector gear (502) is designed to be just meshed with the connecting gear (503) when the drawing board (4) is pushed to the rearmost part of the back board (201).

4. The multifunctional painting device for preschool education as claimed in claim 1, wherein: the opening and closing device (6) comprises a groove (601), the groove (601) is formed in the top of the rear plate (201), the groove (601) is embedded with the handle (109), a vertical groove (602) is formed in the bottom of the groove (601), a bottom spring (603) is fixedly connected to the inner wall of the bottom of the vertical groove (602), a lifting block (604) is fixedly connected to the top of the bottom spring (603), the lifting block (604) is located at the bottom of the handle (109), a control groove (609) is formed in the front end of the vertical groove (602), a control spring (607) is fixedly connected to the inner wall of the front end of the control groove (609), a moving block (605) is fixedly connected to the rear end of the control spring (607), the moving block (605) is located above the lifting block (604), a pressing groove (606) is formed in the top of the moving block (605), and the pressing groove (606) is trapezoidal in shape, a button (608) is inserted into the top of the rear plate (201), and the button (608) is positioned above the pressing groove (606).