Drawing board for art teaching major

Abstract

The utility model discloses a drawing board for art teaching major, which belongs to the technical field of teaching appliances and comprises a base, the top of the base is fixedly connected with a pair of symmetrical supports, the interiors of the supports on the two sides are connected with sliding rods in a sliding mode, the tops of the sliding rods are fixedly connected with a protective shell, and an up-down fixing mechanism is arranged in the protective shell. According to the drawing board for the art teaching major, by starting the motor, the two-way threaded rod is driven to rotate, the pair of clamping plates is driven to fix and clamp the drawing board, the problem that in the prior art, the drawing board needs to be fixed with the assistance of hands is solved, and according to the size of drawing paper, the positions of the connecting blocks on the two sides are adjusted; and then the connecting block is fixed in the inner hole corresponding to the drawing paper through the elastic effect of the spring, and the drawing paper is fixed by driving the soft cushion through the screw rod by rotating the rotating handle, so that the problem that the drawing paper is damaged due to the fact that the drawing paper is fixed through an adhesive tape traditionally is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to a drawing board for art teaching. Background Art

[0002] In art teaching, the drawing board is one of the most commonly used teaching tools. It can be placed on the knees for painting, or it can be fixed on the easel for use. Usually, the drawing paper is fixed to the drawing board by pasting. In addition, paint, brushes, drawing paper and other painting tools are indispensable items in the painting process. Demonstration is a common practice in the teaching process, so it is particularly important to prepare various painting tools in advance and place them reasonably.

[0003] In the prior art, the announcement number is: (CN207931361U), and the patent name is a Chinese utility model patent for a multifunctional drawing board for art drawing. The multifunctional drawing board is disclosed. The patent records that the angle of the drawing board is adjusted by connecting and cooperating among a drawing board bracket, a first micro motor, an angle adjustment sleeve, an adjustment screw, a drawing board, a movable connecting piece, an adjustment pulley and an adjustment slide rail. It can be adjusted to an angle that is conducive to the comfort of the painter during teaching painting demonstrations, and multiple angles can be adjusted during demonstrations to allow each student to observe better, which is conducive to improving the efficiency of art teaching. Through the connection and cooperation among a paintbrush placement device, an adjustment placement board, a reinforcement support rod, a small washing box, a second micro motor, a cleaning stirring shaft, an arc brush, a paintbrush socket and a paintbrush placement table, the painting can be washed in time in class. The pen provides a more convenient function for teachers to show paint comparison, and is also conducive to the placement of paintbrushes, which can improve both teaching efficiency and teaching quality. Through the connection and cooperation between the base I-shaped bracket, micro-battery, universal wheel, shock-absorbing spring, fixed support plate, fixed screw, base suction cup and adjusting knob, the movable and fixed use function is realized, which is conducive to the multi-faceted use of the drawing board and alleviates the school's tight teaching funds. In this solution, the drawing board is adjusted by adjusting the bracket, but due to different drawing drawings, different sizes of drawing boards are required, which requires manual support from staff, reducing efficiency. However, the drawing paper needs to be fixed with tape, and the drawing paper will be damaged when it is removed. In order to solve this technical problem, the utility model proposes a multifunctional drawing board for art drawing. Utility Model Content

[0004] The main purpose of the utility model is to provide a drawing board for art teaching, which can effectively solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A drawing board for art teaching, including a base, a pair of symmetrical brackets fixedly connected to the top of the base, and sliding rods slidably connected inside the brackets on both sides, and a protective shell fixedly connected to the top of the sliding rod, an upper and lower fixing mechanism is arranged inside the protective shell, the upper and lower fixing mechanism includes a two-way threaded rod and a pair of clamps, and the clamps are threadedly connected to the outer wall of the two-way threaded rod, and a sliding groove corresponding to the clamp is opened inside the right side of the protective shell, and the clamp is slidably connected in the sliding groove, and a snap assembly is arranged inside the clamps on both sides, the snap assembly includes two pairs of connecting blocks and corresponding screws, and the screws are threadedly connected inside the bottom end of the connecting block.

[0007] Preferably, a pair of mounting plates are fixedly connected to the right outer wall of the protective shell, and a motor is fixedly connected to the outer side wall of the lower mounting plate, and the bottom end of the bidirectional threaded rod is fixedly connected to the output end of the motor, and the bidirectional threaded rod is rotatably connected to the inside of the mounting plates on both sides.

[0008] Preferably, grooves are provided inside the clamping plates on both sides, and the grooves correspond to one end of the top of the connecting block, and the connecting block is slidably connected inside the grooves, and a plurality of inner holes are provided inside the clamping plates on both sides.

[0009] Preferably, springs are fixed inside the upper and lower sides of the connection block, and a pin is fixedly connected to the other end of the spring. The diameter of the pin corresponds to the inner diameter of the inner hole, and the pin is slidably connected inside the inner hole.

[0010] Preferably, one end of the screw is fixedly connected to a turning handle, and the other end of the screw is fixedly connected to a cushion, and the direction of the cushion corresponds to the inside of the protective shell.

[0011] Preferably, two pairs of brake wheels are fixedly connected to the bottom of the base, and an electric push rod is fixedly connected to the top of the base, and the output end of the electric push rod is fixedly connected to a connecting rod, and both ends of the connecting rod are fixedly connected to sliding rods on both sides, and the sliding rod is slidably connected to the inside of the bracket.

[0012] Preferably, inner grooves are opened inside the upper and lower sides of the protective shell, and a protective cover is arranged on the outside of the protective shell. A pair of long rods corresponding to the inner grooves are fixedly connected to the inner side of the protective cover, and the protective cover is slidably connected to the protective shell through the long rods. At the same time, a collecting tube is fixedly connected to the bottom of the protective shell.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, by starting the motor, the bidirectional threaded rod is driven to rotate, and a pair of clamps are driven to fix and clamp the drawing board, which solves the problem of needing to use hands to help fix the drawing board in the past. According to the size of the drawing paper, the positions of the connecting blocks on both sides are adjusted, and the connecting blocks are fixed to the inner holes corresponding to the drawing paper through the elastic action of the springs. The turning handle is then used to drive the soft pad to fix the drawing paper through the screw, which solves the problem of traditional fixing of the drawing paper with tape and the possibility of damaging the drawing paper. With their cooperation, the effect of quickly fixing drawing boards of different sizes and drawing papers of different sizes is achieved, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a drawing board for art teaching professionals of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a protective shell of a drawing board for art teaching professionals in the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of a splint of a drawing board for art teaching professionals of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the internal structure of a connecting block of a drawing board for art teaching professionals.

[0019] In the figure: 1. base; 2. brake wheel; 3. electric push rod; 4. bracket; 5. connecting rod; 6. sliding rod; 7. protective shell; 8. protective cover; 9. inner groove; 10. mounting plate; 11. motor; 12. two-way threaded rod; 13. clamping plate; 14. slide groove; 15. groove; 16. inner hole; 17. connecting block; 18. spring; 19. latch; 20. turning handle; 21. screw; 22. cushion; 23. collecting tube. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-3As shown, a drawing board for art teaching majors includes a base 1, a pair of symmetrical brackets 4 are fixedly connected to the top of the base 1, and slide rods 6 are slidably connected inside the brackets 4 on both sides. The base 1 plays the role of fixing the brackets 4 and the slide rods 6, and a protective shell 7 is fixedly connected to the top of the slide rod 6, and the protective shell 7 is supported on the bracket 4 through the slide rod 6. An upper and lower fixing mechanism is arranged inside the protective shell 7, and the upper and lower fixing mechanism includes a two-way threaded rod 12 and a pair of clamping plates 13, and the clamping plates 13 are threadedly connected to the outer wall of the two-way threaded rod 12, and a sliding groove 14 corresponding to the clamping plate 13 is opened inside the right side of the protective shell 7, and the clamping plate 13 is slidably connected in the sliding groove 14, when the two-way threaded rod 12 rotates, the clamping plate 13 will be driven to move in the opposite direction, and the sliding groove 14 plays the role of limiting the clamping plate 13, and buckle components are arranged inside the clamping plates 13 on both sides, and the buckle components include two pairs of connecting blocks 17 and corresponding screws 21, and the screws 21 are threadedly connected to the bottom end of the connecting block 17, and the connecting block 17 plays the role of supporting the screw 21.

[0022] like Figure 1-3As shown, a pair of mounting plates 10 are fixedly connected to the outer wall of the right side of the protective shell 7, and a motor 11 is fixedly connected to the outer wall of the lower mounting plate 10, and the bottom end of the bidirectional threaded rod 12 is fixedly connected to the output end of the motor 11, and the bidirectional threaded rod 12 is rotatably connected to the inside of the mounting plates 10 on both sides. The mounting plates 10 play the role of fixing the motor 11 and supporting the bidirectional threaded rod 12, and the motor 11 plays the role of driving the bidirectional threaded rod 12. Grooves 15 are opened inside the clamping plates 13 on both sides, and the grooves 15 are connected to the connecting blocks. 17 corresponds to one end of the top, and the connecting block 17 is slidably connected to the inside of the groove 15, and the groove 15 plays the role of limiting the connecting block 17. A plurality of inner holes 16 are opened on both sides of the inside of the clamping plate 13. Springs 18 are fixed inside the upper and lower sides of the connecting block 17, and the other end of the spring 18 is fixedly connected to a latch 19. The spring 18 drives the latch 19 to move through elasticity. At the same time, the diameter of the latch 19 corresponds to the inner diameter of the inner hole 16, and the latch 19 is slidably connected to the inside of the inner hole 16, and the inner hole 16 plays the role of limiting the latch 19 The connecting block 17 is moved according to the position of the drawing paper, and is fixed in the designated inner hole 16 by the latch 19. One end of the screw rod 21 is fixedly connected to the turning handle 20, and the other end of the screw rod 21 is fixedly connected to the cushion 22. The direction of the cushion 22 corresponds to the inside of the protective shell 7. The drawing paper is fixed by the movement of the cushion 22. Two pairs of brake wheels 2 are fixedly connected to the bottom of the base 1, and the equipment is moved by the brake wheels 2. At the same time, an electric push rod 3 is fixedly connected to the top of the base 1, and the output end of the electric push rod 3 is fixedly connected to the connecting rod 5. At the same time, both ends of the connecting rod 5 are fixedly connected to the sliding rods 6 on both sides, and the sliding rods 6 are slidably connected to the inside of the bracket 4. The starting of the electric push rod 3 will drive the connecting rod 5 to move and drive the sliding rod 6 to adjust. Inner grooves 9 are opened inside the upper and lower sides of the protective shell 7, and a protective cover 8 is arranged on the outside of the protective shell 7. A pair of long rods corresponding to the inner grooves 9 are fixedly connected to the inside of the protective cover 8, and the protective cover 8 is slidably connected to the protective shell 7 through the long rods. At the same time, a collecting cylinder 23 is fixedly connected to the bottom of the protective shell 7.

[0023] It should be noted that in actual use of the device, when an art teacher uses a drawing board for painting teaching, the drawing board must first be placed in the middle of the upper and lower side clamps 13, and fixed according to the size of the drawing board. By starting the motor 11, the clamps 13 at both ends will be driven to move in the opposite direction under the action of the motor 11. When the clamps 13 on both sides move, the drawing board is clamped and fixed. After the drawing board is fixed, since drawing paper is required for painting, the drawing paper is first placed on the drawing board. First, according to the size of the drawing paper, the position of the surrounding connecting blocks 17 is adjusted to move the connecting block 17 to the position corresponding to the drawing paper. When moving, the spring 18 inside the connecting block 17 will elastically bounce the pin 19 into the specified position and the corresponding inner hole 16, thereby fixing the connecting block 17 on the clamp 13, and by turning the handle 20, the turning handle 20 The screw rod 21 is driven to rotate, thereby driving the soft pad 22 to move in the direction of the drawing paper, and fixing the drawing paper on the drawing board, which solves the problem of traditional fixing with tape. At the same time, the clamping effect of the clamping plates 13 on both sides has the effect of quickly fixing the drawing board. After the preparation is ready, the height of the protective shell 7 is adjusted according to the height requirements of different teachers. By starting the electric push rod 3 on the top of the base 1, the connecting rod 5 will be driven to move under the action of the electric push rod 3, and the sliding rods 6 on both sides will be driven to rise and fall under the action of the connecting rod 5, and the bracket 4 is used for limiting. When the sliding rod 6 rises and falls, the height of the protective shell 7 is adjusted. At the end of the class, if the drawing is not completed, the drawing board and the drawing paper can be kept inside the protective shell 7 by pulling the protective cover 8 to prevent external factors from destroying the homework. Through the cooperation between them, the work efficiency is greatly improved.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A drawing board for art teaching, characterized by: The invention comprises a base (1), wherein a pair of symmetrical brackets (4) are fixedly connected to the top of the base (1), and sliding rods (6) are slidably connected inside the brackets (4) on both sides, and a protective shell (7) is fixedly connected to the top of the sliding rod (6), and an upper and lower fixing mechanism is arranged inside the protective shell (7), and the upper and lower fixing mechanism comprises a bidirectional threaded rod (12) and a pair of clamping plates (13), and the clamping plates (13) are threadedly connected to the outer wall of the bidirectional threaded rod (12), and a sliding groove (14) corresponding to the clamping plate (13) is opened inside the right side of the protective shell (7), and the clamping plate (13) is slidably connected in the sliding groove (14), and buckle assemblies are arranged inside the clamping plates (13) on both sides, and the buckle assemblies comprise two pairs of connecting blocks (17) and corresponding screw rods (21), and the screw rods (21) are threadedly connected inside the bottom end of the connecting block (17).

2. The drawing board for art teaching according to claim 1, characterized in that: A pair of mounting plates (10) are fixedly connected to the right outer wall of the protective shell (7), and a motor (11) is fixedly connected to the outer wall of the lower mounting plate (10), and the bottom end of the bidirectional threaded rod (12) is fixedly connected to the output end of the motor (11), and the bidirectional threaded rod (12) is rotatably connected to the inside of the mounting plates (10) on both sides.

3. The drawing board for art teaching according to claim 2, characterized in that: Grooves (15) are provided inside the clamping plates (13) on both sides, and the grooves (15) correspond to one end of the top of the connecting block (17). The connecting block (17) is slidably connected inside the grooves (15). Multiple inner holes (16) are provided inside the clamping plates (13) on both sides.

4. The drawing board for art teaching according to claim 3, characterized in that: Springs (18) are fixed inside the upper and lower sides of the connection block (17), and a latch (19) is fixedly connected to the other end of the spring (18). The diameter of the latch (19) corresponds to the inner diameter of the inner hole (16), and the latch (19) is slidably connected inside the inner hole (16).

5. The drawing board for art teaching according to claim 3, characterized in that: One end of the screw rod (21) is fixedly connected to a turning handle (20), while the other end of the screw rod (21) is fixedly connected to a soft pad (22), and the direction of the soft pad (22) corresponds to the inside of the protective shell (7).

6. The drawing board for art teaching according to claim 3, characterized in that: The bottom of the base (1) is fixedly connected to two pairs of brake wheels (2), and the top of the base (1) is fixedly connected to an electric push rod (3), and the output end of the electric push rod (3) is fixedly connected to a connecting rod (5), and the two ends of the connecting rod (5) are fixedly connected to sliding rods (6) on both sides, and the sliding rods (6) are slidably connected to the inside of the bracket (4).

7. The drawing board for art teaching according to claim 3, characterized in that: The protective shell (7) has inner grooves (9) formed inside the upper and lower sides, and a protective cover (8) is provided outside the protective shell (7). A pair of long rods corresponding to the inner grooves (9) are fixedly connected to the inner side of the protective cover (8), and the protective cover (8) is slidably connected to the protective shell (7) via the long rods. A collecting cylinder (23) is fixedly connected to the bottom of the protective shell (7).

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