CN111016526A - Outdoor environment art design drawing frame - Google Patents

Outdoor environment art design drawing frame Download PDF

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Publication number
CN111016526A
CN111016526A CN201911246757.8A CN201911246757A CN111016526A CN 111016526 A CN111016526 A CN 111016526A CN 201911246757 A CN201911246757 A CN 201911246757A CN 111016526 A CN111016526 A CN 111016526A
Authority
CN
China
Prior art keywords
art design
board main
drawing board
main body
shielding plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911246757.8A
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Chinese (zh)
Inventor
袁志宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Electronic Science and Technology of China Zhongshan Institute
Original Assignee
University of Electronic Science and Technology of China Zhongshan Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Electronic Science and Technology of China Zhongshan Institute filed Critical University of Electronic Science and Technology of China Zhongshan Institute
Priority to CN201911246757.8A priority Critical patent/CN111016526A/en
Publication of CN111016526A publication Critical patent/CN111016526A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44DPAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/18Boards or sheets with surfaces prepared for painting or drawing pictures; Stretching frames for canvases
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B27/00Drawing desks or tables; Carriers for drawing-boards

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  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Abstract

The invention discloses an outdoor environment art design drawing frame, and particularly relates to the field of environment art design devices. According to the invention, through the change of the mounting positions of the shielding plates on the storage rack and the positioning shaft rods, a user draws out the shielding plates from the third accommodating groove, respectively mounts the two shielding plates at the mounting groove positions of the positioning shaft rods on the two sides, pushes the shielding plates to drive the damping rotating shaft to rotate angularly through the rod body, can adjust the angular change between the shielding plates and the drawing board main body so as to adapt to light interference caused by sunlight irradiation angular change, does not need the user to adjust the whole angle of the easel, is convenient to adjust the angle, and ensures smooth drawing operation.

Description

Outdoor environment art design drawing frame
Technical Field
The invention relates to the technical field of environmental art design devices, in particular to an outdoor environmental art design easel.
Background
The environmental art is green art and science, and is harmonious and lasting art and science. Urban planning, urban design, architectural design, indoor design, urban carving, mural painting, small building and the like belong to the environmental art category. It is closely related to life, production, work and leisure of people. Along with the improvement of the living standard and living standard of people, the requirements of people on the quality of various environmental arts are higher and higher. The concept and practice of environmental art rise and develop in our country on the basis of the background and the practice. The rise and development of the modern environmental art in China are very important scientific culture art achievements in recent years in China. It is very meaningful to review the rise and development of environmental art in China and make objective evaluations thereof.
An easel is a stand-alone structure designed to hold a CANVAS (CANVAS) or a Palette (PANEL) by an artist during painting. Easels for use in paintrooms are usually fixed on square or rectangular bases by four rigid battens, the bases being equipped with foot wheels, two rigid struts intersecting at the top, and diagonal struts in the middle of the rear. The adjustable sliding groove is provided, and the spring hook of the adjustable sliding groove can be fixed in a segmented mode and supports the painting; the top end is fixed by a movable clamp. The sketching easel is made of wood or aluminum, has small volume, light weight and easy carrying, and can fold all accessories into compact volume; its design is between robust and portable. The most common sketching easel has three legs, two of which are at the front and support the post for painting, and the third of which is extended backwards to adjust the angle of the drawing board or canvas. The easel of a college or art class is more rigid than an easel of sketching, but is lighter than easels used in painting rooms. Most easels are collapsible for storage.
Environmental art's designer often needs to gather wind outdoors when carrying out the design, will inspire outdoors, build the picture, with the design and the idea of saving then, nevertheless draw the in-process outdoors because the change of illumination angle, can influence the visual effect of drawing personnel because the shining of part light, and then influence drawing effect, the transform that needs the user to follow sunshine constantly changes the pergola position, influence drawing process and scene collection sight angle, be unfavorable for the smooth and easy of drawing work to go on.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide an outdoor environment art design drawing frame, wherein two shielding plates are respectively installed at the installation groove positions of the positioning shaft levers at two sides, the shielding plates are pushed to drive the damping rotating shaft to rotate angularly through the rod body, and the angular change between the shielding plates and the drawing board main body can be adjusted to adapt to light interference caused by sunlight irradiation angle change, so as to ensure smooth drawing operation.
In order to achieve the purpose, the invention provides the following technical scheme: the outdoor environment art design drawing frame comprises a drawing board main body, a front support, a rear support and a connecting frame, wherein a storage frame is arranged on one side of the drawing board main body, two shielding plates are arranged inside the storage frame, and positioning shaft levers are arranged on two sides of the storage frame;
the storage rack comprises a rack body, wherein first accommodating grooves are formed in the two sides of the rack body, a limiting spring is arranged between the first accommodating groove and the drawing board main body, one end of the limiting spring is fixedly connected with the inner wall of the first accommodating groove, the other end of the limiting spring is fixedly connected with the drawing board main body, a second accommodating groove is formed in one side of the first accommodating groove, and a third accommodating groove is formed in the joint of the rack body and the shielding plate;
the shielding plate comprises a main body plate, and a frosting layer is arranged on one side of the main body plate;
the location axostylus axostyle includes the body of rod, body of rod one side is equipped with the mounting groove, all be connected through the damping pivot between body of rod both ends and the drawing board main part.
In a preferred embodiment, the shielding plate is an acrylic plate, the width of the shielding plate is 1/2 of the distance between the two third receiving grooves, and the length of the shielding plate is greater than the length of the third receiving groove.
In a preferred embodiment, the third accommodating groove and the mounting groove are both adapted to the thickness of the shielding plate, and the third accommodating groove and the mounting groove are both plugged into the shielding plate.
In a preferred embodiment, the drawing board main body and the connecting frame are the same in length, the front support and the rear support are the same in length, and fastening bolts are arranged at the joints of the drawing board main body, the front support, the rear support and the connecting frame.
In a preferred embodiment, the bottoms of the front bracket and the rear bracket are respectively provided with a non-slip mat, the non-slip mat is made of rubber materials, and the bottoms of the front bracket and the rear bracket and the non-slip mat are fixed through glue.
In a preferred embodiment, a storage cavity is arranged between the bottom surfaces of the front support and the rear support and the non-slip mat, and a positioning cone is arranged in the storage cavity.
In a preferred embodiment, the inner wall of the storage cavity is provided with a limiting pad, the limiting pad is made of a rubber material, and the limiting pad is bonded with the inner wall of the storage cavity through glue.
In a preferred embodiment, one end of the positioning cone is fixedly provided with a connecting block, and the joints of the front support and the connecting block, the rear support and the connecting block are provided with adjusting chutes which penetrate through the front support and the rear support to be connected with the accommodating cavity.
The invention has the technical effects and advantages that:
1. according to the invention, through the change of the mounting positions of the shielding plates on the storage rack and the positioning shaft rods, a user draws out the shielding plates from the third accommodating groove, respectively mounts the two shielding plates at the mounting groove positions of the positioning shaft rods on the two sides, pushes the shielding plates to drive the damping rotating shaft to rotate angularly through the rod body, can adjust the angular change between the shielding plates and the drawing board main body so as to adapt to light interference caused by sunlight irradiation angular change, does not need the user to adjust the whole angle of the easel, is convenient to adjust the angle, and ensures smooth drawing work;
2. according to the invention, the front support and the rear support are arranged, after the easel is assembled, if the easel is placed on a surface layer with soft texture such as soil, a user holds the front support or the rear support by hand, steps on the connecting block by feet to move downwards in the adjusting chute, drives the positioning cone to protrude out of the accommodating cavity and prick into the ground, so that the stability of placement of the easel is ensured, and after the drawing work is completed, the positioning cone is driven to be recovered into the accommodating cavity by only pulling the connecting block to move in the adjusting chute.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the positioning shaft of the present invention.
Fig. 3 is a schematic view of the storage rack of the present invention.
FIG. 4 is a schematic view of a shielding plate structure according to the present invention.
Fig. 5 is a structural diagram illustrating the unfolded state of the present invention.
Fig. 6 is a schematic structural view of the storage state of the present invention.
FIG. 7 is an enlarged view of portion A of FIG. 1 according to the present invention.
The reference signs are: 1 drawing board main part, 2 fore-stock, 21 slipmat, 22 accomodate the cavity, 23 location awl, 24 spacing pads, 25 connecting blocks, 26 adjust the spout, 3 after-poppet, 4 link, 5 storage rack, 51 support body, 52 first accomodate the groove, 53 spacing spring, 54 second accomodate the groove, 55 third accomodate the groove, 6 shielding plate, 61 main part board, 62 frosting, 7 location axostylus axostyle, 71 body of rod, 72 mounting grooves, 8 fastening bolt.
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.
The invention provides an outdoor environment art design drawing frame which comprises a drawing board main body 1, a front support 2, a rear support 3 and a connecting support 4, wherein a storage rack 5 is arranged on one side of the drawing board main body 1, two shielding plates 6 are arranged inside the storage rack 5, positioning shaft rods 7 are arranged on two sides of the storage rack 5, the length of the drawing board main body 1 is the same as that of the connecting support 4, the length of the front support 2 is the same as that of the rear support 3, and fastening bolts 8 are arranged at the joints among the drawing board main body 1, the front support 2, the rear support 3 and the connecting support 4;
the storage rack 5 comprises a rack body 51, first accommodating grooves 52 are formed in the inner portions of two sides of the rack body 51, a limiting spring 53 is arranged between the first accommodating groove 52 and the drawing board main body 1, one end of the limiting spring 53 is fixedly connected with the inner wall of the first accommodating groove 52, the other end of the limiting spring 53 is fixedly connected with the drawing board main body 1, a second accommodating groove 54 is formed in one side of the first accommodating groove 52, and a third accommodating groove 55 is formed in the joint of the rack body 51 and the shielding plate 6;
the shielding plate 6 comprises a main body plate 61, a frosted layer 62 is arranged on one side of the main body plate 61, the shielding plate 6 is arranged as an acrylic plate, the width of the shielding plate 6 is 1/2 of the distance between two third accommodating grooves 55, the length of the shielding plate 6 is greater than that of the third accommodating grooves 55, the third accommodating grooves 55 and the mounting grooves 72 are matched with the thickness of the shielding plate 6, and the third accommodating grooves 55 and the mounting grooves 72 are inserted into the shielding plate 6;
the positioning shaft rod 7 comprises a rod body 71, wherein one side of the rod body 71 is provided with a mounting groove 72, and two ends of the rod body 71 are connected with the drawing board main body 1 through damping rotating shafts.
As shown in fig. 1 to 4, the embodiment specifically is as follows: the user takes the shielding plate 6 out of the third accommodating groove 55, the two shielding plates 6 are respectively arranged at the positions of the mounting grooves 72 of the positioning shaft levers 7 at the two sides, the shielding plate 6 is pushed to drive the damping rotating shaft to rotate angularly through the rod body 71, the angular change between the shielding plate 6 and the drawing board main body 1 can be adjusted, the frosted layer 62 can reduce the light intensity of the main body plate 61 to adapt to the light interference caused by the change of the sunlight irradiation angle, the user is not required to adjust the whole angle of the easel, the angle is convenient to adjust, and the smooth operation of drawing work is ensured; in addition, after the drawing work is completed, the drawing paper is taken out from the top end opening of the second receiving groove 54, and then the shielding plate 6 is inserted back into the third receiving groove 55, the remaining drawing paper in the second accommodating groove 54 can be protected, the pollution of external dirt or water stain to the remaining drawing paper can be avoided, the drawing paper can be stored in the way without additionally arranging a drawing paper fixing device on the easel or worrying about the problem of unstable fixing of the drawing paper, meanwhile, the situation that the drawing work cannot be performed due to forgetting to take the drawing paper can be avoided, and if the drawing paper in the second accommodating groove 54 is used up, the user stimulates support body 51 and drives spacing spring 53 length extension, and the interval between increase support body 51 and the drawing board main part 1, the user puts into the second with the drawing paper of suitable number and accomodates groove 54, drives support body 51 and resets under spacing spring 53 resilience force effect afterwards, carries out the rigidity to the drawing paper of second in accomodating the groove 54 together with drawing board main part 1.
The bottom parts of the front support 2 and the rear support 3 are respectively provided with a non-slip mat 21, the non-slip mats 21 are made of rubber materials, the bottom surfaces of the front support 2 and the rear support 3 and the non-slip mats 21 are fixed through glue, a storage cavity 22 is arranged between the bottom surfaces of the front support 2 and the rear support 3 and the non-slip mats 21, a positioning cone 23 is arranged inside the storage cavity 22, the inner wall of the storage cavity 22 is provided with a limiting mat 24, the limiting mat 24 is made of rubber materials, the limiting mat 24 is bonded with the inner wall of the storage cavity 22 through the glue, one end of the positioning cone 23 is fixedly provided with a connecting block 25, the joint of the front support 2 and the rear support 3 with the connecting block 25 is provided with an adjusting chute 26, and the adjusting chute 26 penetrates through the front support 2 and the rear;
as shown in fig. 5 to 7, the embodiment is specifically as follows: when the easel is assembled, all the fastening bolts 8 are loosened, the drawing board main body 1, the front support 2, the rear support 3 and the connecting support 4 are connected into an inverted V shape (shown in figure 5), then the fastening bolts 8 at the connecting positions of the drawing board main body 1 and the front support 2 and the rear support 3 and the connecting support 4 are screwed and fixed, then the angle between the drawing board main body 1 and the connecting support 4 is changed to meet the requirement of a user on the height of drawing paper, after the height is adjusted, the fastening bolts 8 at the connecting positions of the drawing board main body 1 and the connecting support 4 are screwed for angle fixing, after the drawing is finished, all the fastening bolts 8 are loosened in sequence, the drawing board main body 1 and the connecting support 4 can be accommodated between the front support 2 and the rear support 3 (shown in figure 6), then the front support 2 and the rear support 3 are squeezed, the distance between the two is shortened, the occupied area is reduced, and the carrying by the user is convenient, after the easel is assembled, if the easel is placed on a stone or concrete surface with hard texture, the anti-skid pad 21 can increase the friction force of the contact point of the front support 2 and the rear support 3, thereby preventing the easel from slipping and shaking, if the easel is placed on a surface layer with soft texture such as soil, a user holds the front support 2 or the rear support 3 by hand, steps on the connecting block 25 by feet to move downwards in the adjusting chute 26, drives the positioning cone 23 to protrude out of the accommodating cavity 22 and prick into the ground, the stability of the placement of the easel is ensured, after the drawing work is finished, only the lifting connecting block 25 is required to move in the adjusting chute 26 to drive the positioning cone 23 to be recovered to the interior of the containing cavity 22, and slipmat 21 can be injectd location awl 23 and accomodating cavity 22 internal position, prevents that this easel transportation in-process location awl 23 from accomodating the safe accident that cavity 22 internal protrusion brought, guarantees the safety in utilization of this easel.
The working principle of the invention is as follows:
referring to the attached drawings 1-4 of the specification, two shielding plates 6 are arranged at the positions of the mounting grooves 72 of the positioning shaft levers 7 at two sides, the shielding plates 6 are pushed to drive the damping rotating shafts to rotate angularly through the rod bodies 71 so as to adapt to light interference caused by sunlight irradiation angle change, and after the drawing work is finished, the shielding plates 6 are inserted into the third accommodating grooves 55 to protect the residual drawing paper in the second accommodating grooves 54 and prevent the residual drawing paper from being polluted by external dirt or water stains;
further, referring to the attached figures 5-7 of the specification, if the easel is placed on a stone or concrete surface with hard texture, the anti-slip pad 21 can increase the friction force of the contact point of the front support 2 and the rear support 3, so that the problems of slipping and shaking of the easel are prevented, if the easel is placed on a surface layer with soft texture such as soil, the positioning cone 23 is pricked into the ground, and the stability of placing the easel is guaranteed.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. The utility model provides an outdoor environment art design drawing frame, includes drawing board main part (1), fore-stock (2), after-poppet (3) and link (4), its characterized in that: a storage rack (5) is arranged on one side of the drawing board main body (1), two shielding plates (6) are arranged inside the storage rack (5), and positioning shaft rods (7) are arranged on two sides of the storage rack (5);
the storage rack (5) comprises a rack body (51), first accommodating grooves (52) are formed in the inner portions of two sides of the rack body (51), a limiting spring (53) is arranged between each first accommodating groove (52) and the drawing board main body (1), one end of each limiting spring (53) is fixedly connected with the inner wall of each first accommodating groove (52), the other end of each limiting spring (53) is fixedly connected with the drawing board main body (1), a second accommodating groove (54) is formed in one side of each first accommodating groove (52), and a third accommodating groove (55) is formed in the joint of the rack body (51) and the shielding plate (6);
the shielding plate (6) comprises a main body plate (61), and one side of the main body plate (61) is provided with a frosted layer (62);
the positioning shaft lever (7) comprises a lever body (71), one side of the lever body (71) is provided with a mounting groove (72), and two ends of the lever body (71) are connected with the drawing board main body (1) through damping rotating shafts.
2. An outdoor environmental art design easel according to claim 1 and wherein: the shielding plate (6) is arranged to be an acrylic plate, the width of the shielding plate (6) is 1/2 of the distance between the two third accommodating grooves (55), and the length of the shielding plate (6) is larger than that of the third accommodating grooves (55).
3. An outdoor environmental art design easel according to claim 1 and wherein: groove (55) and mounting groove (72) are all accomodate with shielding plate (6) thickness looks adaptation to the third, groove (55) and mounting groove (72) are all accomodate with shielding plate (6) grafting to the third.
4. An outdoor environmental art design easel according to claim 1 and wherein: drawing board main part (1) is the same with link (4) length, fore-stock (2) are the same with after-poppet (3) length, drawing board main part (1), fore-stock (2), after-poppet (3) and link (4) junction each other all is equipped with fastening bolt (8).
5. An outdoor environmental art design easel according to claim 1 and wherein: the anti-skid device is characterized in that anti-skid pads (21) are arranged at the bottoms of the front support (2) and the rear support (3), the anti-skid pads (21) are made of rubber materials, and the bottom surfaces of the front support (2) and the rear support (3) are fixed with the anti-skid pads (21) through glue.
6. An outdoor environmental art design easel according to claim 5 and wherein: a storage cavity (22) is arranged between the bottom surfaces of the front support (2) and the rear support (3) and the non-slip mat (21), and a positioning cone (23) is arranged inside the storage cavity (22).
7. An outdoor environmental art design easel according to claim 6 and wherein: accomodate cavity (22) inner wall and be equipped with spacing pad (24), spacing pad (24) are made by rubber materials, spacing pad (24) and accomodate and bond through the glue solution between cavity (22) inner wall.
8. An outdoor environmental art design easel according to claim 6 and wherein: positioning cone (23) one end is fixed and is equipped with connecting block (25), fore-stock (2) and after-poppet (3) are equipped with regulation spout (26) with connecting block (25) junction, it runs through fore-stock (2) and after-poppet (3) and accomodates cavity (22) and links to each other to adjust spout (26).
CN201911246757.8A 2019-12-07 2019-12-07 Outdoor environment art design drawing frame Pending CN111016526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911246757.8A CN111016526A (en) 2019-12-07 2019-12-07 Outdoor environment art design drawing frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911246757.8A CN111016526A (en) 2019-12-07 2019-12-07 Outdoor environment art design drawing frame

Publications (1)

Publication Number Publication Date
CN111016526A true CN111016526A (en) 2020-04-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911246757.8A Pending CN111016526A (en) 2019-12-07 2019-12-07 Outdoor environment art design drawing frame

Country Status (1)

Country Link
CN (1) CN111016526A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112841885A (en) * 2021-01-11 2021-05-28 郑州升达经贸管理学院 Portable drawing board for art design and folding support thereof
CN113208274A (en) * 2021-05-28 2021-08-06 浙江水利水电学院 Assembled drawing workbench

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140107941A (en) * 2013-02-28 2014-09-05 정궁조 Built-up Easel
CN205631908U (en) * 2016-05-21 2016-10-12 郑州工业应用技术学院 Paint from life and use fine arts drawing box in open air
CN206383741U (en) * 2016-12-30 2017-08-08 陈建军 A kind of Foldable painting board
CN206586607U (en) * 2016-12-04 2017-10-27 贾冉 A kind of drawing table for the folding artistic design that is easy to carry
CN206664125U (en) * 2017-03-28 2017-11-24 崔雷波 A kind of fine arts Portable tool case
CN207291477U (en) * 2017-03-21 2018-05-01 江西服装学院 A kind of Art Sketch drawing board

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140107941A (en) * 2013-02-28 2014-09-05 정궁조 Built-up Easel
CN205631908U (en) * 2016-05-21 2016-10-12 郑州工业应用技术学院 Paint from life and use fine arts drawing box in open air
CN206586607U (en) * 2016-12-04 2017-10-27 贾冉 A kind of drawing table for the folding artistic design that is easy to carry
CN206383741U (en) * 2016-12-30 2017-08-08 陈建军 A kind of Foldable painting board
CN207291477U (en) * 2017-03-21 2018-05-01 江西服装学院 A kind of Art Sketch drawing board
CN206664125U (en) * 2017-03-28 2017-11-24 崔雷波 A kind of fine arts Portable tool case

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112841885A (en) * 2021-01-11 2021-05-28 郑州升达经贸管理学院 Portable drawing board for art design and folding support thereof
CN112841885B (en) * 2021-01-11 2022-03-25 郑州升达经贸管理学院 Portable drawing board for art design and folding support thereof
CN113208274A (en) * 2021-05-28 2021-08-06 浙江水利水电学院 Assembled drawing workbench

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Application publication date: 20200417

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