Folding drawing board for graphic design

Abstract

The utility model discloses a folding drawing board for graphic design, which is applied to the technical field of graphic design and comprises a first drawing board and a second drawing board, hinges are bolted on sides, close to each other, of the first drawing board and the second drawing board, and the first drawing board and the second drawing board are hinged with each other through the hinges. A sliding plate and a limiting insertion plate are slidably connected to the side, close to the hinge, of the first drawing board, a spring fixedly connected with the first drawing board is bolted to the end, close to the interior of the first drawing board, of the sliding plate, and a pinion rotationally connected with the first drawing board is arranged between the sliding plate and the limiting insertion plate. A sliding plate is automatically extruded into the first drawing board in the process of opening the second drawing board, so that a limiting insertion plate is driven to slide forwards to support and limit the back surfaces of the first drawing board and the second drawing board. Therefore, only manual control is needed when the drawing board is folded and retracted, the opened drawing board can be limited, manual adjustment is not needed, operation is convenient, and practicability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of graphic design technology, and specifically relates to a folding drawing board for graphic design. Background Technology

[0002] In graphic design, a drawing board is needed to allow users to draw their ideas onto paper.

[0003] Currently, Chinese utility model patent CN220096000U discloses a portable flat design drawing board. However, while existing drawing boards are foldable, they often require manual control of internal limiting structures to keep the board in place after unfolding, making operation cumbersome and impractical. Furthermore, securing the drawing paper to the board typically involves gluing the paper to the board or using thumbtacks, neither of which provides a quick and secure hold and can damage the paper's surface, further reducing its practicality. Utility Model Content

[0004] The purpose of this utility model is to provide a folding drawing board for graphic design, which has the advantages of automatically limiting the opening of the drawing board and quickly fixing the drawing paper to the drawing board.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a folding drawing board for graphic design, comprising a first drawing board and a second drawing board, wherein hinges are bolted to the sides of the first drawing board and the second drawing board that are close to each other, and the first drawing board and the second drawing board are hinged to each other by the hinges, wherein a sliding plate and a limiting plate are slidably connected to the side of the first drawing board that is close to the hinges, wherein a spring fixedly connected to the first drawing board is bolted to the end of the sliding plate that is close to the interior of the first drawing board, wherein a small gear that is rotatably connected to the first drawing board is provided between the sliding plate and the limiting plate, wherein tooth grooves that mesh with the small gear are provided on the sides of the sliding plate and the limiting plate that are close to each other, and a slot that is slidably inserted into the limiting plate is provided on the end of the second drawing board that is close to the hinges.

[0006] By employing the above technical solution, the sliding plate is automatically pressed into the interior of the first drawing board during the opening of the second drawing board. This causes the limiting plate to slide forward, supporting and limiting the back of both the first and second drawing boards. Therefore, manual control is only required when the drawing boards are folded back, allowing for precise positioning of the opened boards without the need for manual adjustment, simplifying operation. The paper is quickly secured by quickly moving the clamping blocks to clamp the four corners and then rotating the limiting bolts to further restrict their movement. When the paper needs to be removed, simply unscrew the limiting bolts and move the clamping blocks to one side, preventing damage to the paper surface and improving practicality.

[0007] The present invention is further configured such that: two rotating rods are symmetrically rotatably connected to the sides of the first and second drawing boards that are far apart from each other; a clamping block that is slidably connected to the first and second drawing boards is welded to the ends of the two rotating rods that are far away from the first and second drawing boards; and a limiting bolt that is threaded through and engages with the rotating rod is threaded through the top and bottom of the first and second drawing boards.

[0008] The above technical solution allows for quick fixation of the drawing paper without damaging its surface, thus improving its practicality.

[0009] The present invention is further configured such that a handle is bolted to the side of the second drawing board away from the first drawing board.

[0010] The above technical solution makes it easy to pick up and carry the folded first and second drawing boards.

[0011] The present invention is further configured such that: a hook is rotatably connected to the side of the second drawing board near the handle, and a locking rod is welded to the side of the first drawing board away from the second drawing board, which is engaged with the hook.

[0012] By using the above technical solution, the first and second drawing boards can be positioned by hooking the hook onto the drawing bar.

[0013] The present invention is further configured such that: an anti-slip groove is provided on the side of the limiting plate away from the pinion, and a limiting slider that is slidably connected to the first drawing board is welded to the side of the limiting plate away from the anti-slip groove.

[0014] The above technical solution facilitates the retraction of the limiting insert into the first drawing board, allowing the first and second drawing boards to be folded. At the same time, the limiting slider prevents the limiting insert from sliding out of the first drawing board.

[0015] The present invention is further configured such that an arc-shaped groove is provided at the end of the sliding plate away from the spring.

[0016] The above technical solution facilitates the second drawing board to press the sliding board, causing the sliding board to retract into the first drawing board.

[0017] The present invention is further configured such that: the end of the pressing block away from the rotating rod is a trapezoid with a wider top and a narrower bottom, and a rubber pad is adhered to the bottom of the pressing block.

[0018] The above technical solution makes it easier to press the drawing paper against the bottom of the pressing block, thereby increasing the friction when pressing the drawing paper.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. During the opening of the second drawing board, the sliding plate is automatically pressed into the interior of the first drawing board, causing it to slide forward and support the back of both the first and second drawing boards. Therefore, manual control is only required when the drawing boards are folded back, and the opened drawing board can be limited without manual adjustment, making it easy to operate.

[0021] 2. By moving the clamping blocks to clamp the four corners of the drawing paper, and turning the limiting bolts to limit the clamping blocks, the drawing paper can be quickly fixed. At the same time, when it is necessary to remove the drawing paper, simply turn off the limiting bolts and move the clamping blocks to one side, thus preventing damage to the surface of the drawing paper and improving its practicality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a sectional view of the side structure of the second drawing board of this utility model;

[0024] Figure 3 This is a top view of the structure of this utility model;

[0025] Figure 4 This is a partial structural schematic diagram of the present invention;

[0026] Figure 5 This is a utility model Figure 3 Enlarged view of point A in the image.

[0027] Reference numerals in the attached diagram: 1. First drawing board; 2. Second drawing board; 3. Clamping block; 4. Rotating rod; 5. Limiting bolt; 6. Hinge; 7. Sliding plate; 8. Spring; 9. Pinion; 10. Limiting insert plate; 11. Slot; 12. Tooth groove; 13. Rubber pad; 14. Hook; 15. Locking rod; 16. Handle; 17. Anti-slip groove; 18. Limiting slider. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1:

[0030] refer to Figure 1 , Figure 2 , Figure 3 , Figure 5A folding drawing board for graphic design includes a first drawing board 1 and a second drawing board 2. Hinges 6 are bolted to the sides of both the first and second drawing boards 1 and 2, which are close to each other. A sliding plate 7 and a limiting plate 10 are slidably connected to the side of the first drawing board 1 near the hinge 6. A spring 8, fixedly connected to the first drawing board 1, is bolted to the end of the sliding plate 7 near the interior of the first drawing board 1. A small gear 9, rotatably connected to the first drawing board 1, is provided between the sliding plate 7 and the limiting plate 10. Gear grooves 12, meshing with the small gear 9, are provided on the sides of both the sliding plate 7 and the limiting plate 10 near the interior. A slot 11, slidably inserted into the limiting plate 10, is provided on the end of the second drawing board 2 near the hinge 6. During the opening of the second drawing board 2, the sliding plate 7 is automatically pressed into the interior of the first drawing board 1, causing it to slide forward and support and limit the back of the first and second drawing boards 1 and 2. Therefore, manual control is only required when the drawing board is folded back, and the open drawing board can be limited without manual adjustment, making it easy to operate.

[0031] refer to Figure 1 A handle 16 is attached to the side of the second drawing board 2 away from the first drawing board 1. This makes it easy to lift and carry the folded first drawing board 1 and the second drawing board 2.

[0032] refer to Figure 5 The limiting plate 10 has an anti-slip groove 17 on the side away from the pinion 9, and a limiting slider 18 that is slidably connected to the first drawing board 1 is welded to the side of the limiting plate 10 away from the anti-slip groove 17. This facilitates the retraction of the limiting plate 10 into the first drawing board 1, allowing the first drawing board 1 and the second drawing board 2 to be folded. At the same time, the limiting slider 18 prevents the limiting plate 10 from sliding out of the first drawing board 1.

[0033] refer to Figure 5 An arc-shaped groove is provided at the end of the sliding plate 7 away from the spring 8. This facilitates the second drawing plate 2 to press the sliding plate 7, causing the sliding plate 7 to retract into the first drawing plate 1.

[0034] Brief description of the usage: By using hinge 6, the second drawing board 2 is rotated to be flush with the first drawing board 1. During the rotation of the second drawing board 2, the end closer to the first drawing board 1 will press the sliding plate 7 into the interior of the first drawing board 1, thereby causing the sliding plate 7 to mesh with the pinion 9 through the toothed groove 12. Then, the pinion 9 rotates and meshes with the limiting insert 10 through the toothed groove 12, causing the limiting insert 10 to slide in the opposite direction to the sliding plate 7, allowing the limiting insert 10 to slide into the slot 11, supporting and limiting the back of the first drawing board 1 and the second drawing board 2. Since the movement direction of the second drawing board 2 is rotation, it cannot push the limiting insert 10 back into the first drawing board 1, allowing the first drawing board 1 and the second drawing board 2 to be stably unfolded to support the drawing paper.

[0035] Example 2:

[0036] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A folding drawing board for graphic design is disclosed. Two rotating rods 4 are symmetrically connected to the opposite sides of a first drawing board 1 and a second drawing board 2. Each rotating rod 4 has a clamping block 3 welded to its opposite end, slidingly connected to the first and second drawing boards 1 and 2. Limiting bolts 5, threaded through the top and bottom of both the first and second drawing boards 1 and 2, engage with the rotating rods 4. By moving the clamping blocks 3, the four corners of the drawing paper are clamped; by rotating the limiting bolts 5, the clamping blocks 3 are locked in place, allowing for quick and easy fixing of the drawing paper. When the drawing paper needs to be removed, simply unscrew the limiting bolts 5 and move the clamping blocks 3 to one side, preventing damage to the surface of the drawing paper and improving practicality.

[0037] refer to Figure 1 , Figure 3 The second drawing board 2 is rotatably connected to a hook 14 on the side near the handle 16, and a locking rod 15, which engages with the hook 14, is welded to the side of the first drawing board 1 away from the second drawing board 2. By hooking the hook 14 onto the locking rod 15, the folded first drawing board 1 and the second drawing board 2 can be positioned.

[0038] refer to Figure 4 The end of the pressing block 3 furthest from the rotating rod 4 is trapezoidal, wider at the top and narrower at the bottom, and a rubber pad 13 is attached to the bottom of the pressing block 3. This facilitates pressing the drawing paper against the bottom of the pressing block 3 and increases the friction when pressing the drawing paper.

[0039] Brief description of usage: After opening the first drawing board 1 and the second drawing board 2, place the drawing paper on them. Then, move the clamping block 3 to rotate the rotating rod 4 inside the first and second drawing boards 1 and 2 respectively, causing the clamping block 3 to move to the four corners of the drawing paper and squeeze it. Afterwards, turn the limiting bolt 5 to lock the rotating rod 4, preventing the clamping block 3 from rotating, thus clamping the drawing paper onto the first and second drawing boards 1 and 2. To remove the drawing paper, simply turn the limiting bolt 5 and move the clamping block 3 to one side.

[0040] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A folding drawing board for graphic design, comprising a first drawing board (1) and a second drawing board (2), characterized in that: Hinges (6) are bolted to the sides of the first drawing board (1) and the second drawing board (2) that are close to each other. The first drawing board (1) and the second drawing board (2) are hinged to each other by the hinges (6). A sliding plate (7) and a limiting plate (10) are slidably connected to the side of the first drawing board (1) that is close to the hinge (6). A spring (8) that is fixedly connected to the first drawing board (1) is bolted to the end of the sliding plate (7) that is close to the inside of the first drawing board (1). A small gear (9) that is rotatably connected to the first drawing board (1) is provided between the sliding plate (7) and the limiting plate (10). A tooth groove (12) that meshes with the small gear (9) is opened on the side of the sliding plate (7) and the limiting plate (10) that are close to each other. A slot (11) that is slidably inserted into the limiting plate (10) is opened on the end of the second drawing board (2) that is close to the hinge (6).

2. The folding drawing board for graphic design according to claim 1, characterized in that: Two rotating rods (4) are symmetrically connected to the sides of the first drawing board (1) and the second drawing board (2) that are far apart from each other. The ends of the two rotating rods (4) that are far away from the first drawing board (1) and the second drawing board (2) are welded with clamping blocks (3) that are slidably connected to the first drawing board (1) and the second drawing board (2). The top and bottom of the first drawing board (1) and the second drawing board (2) are threadedly connected with limiting bolts (5) that are engaged with the rotating rods (4).

3. A folding drawing board for graphic design according to claim 1, characterized in that: A handle (16) is attached to the side of the second drawing board (2) away from the first drawing board (1).

4. A folding drawing board for graphic design according to claim 3, characterized in that: The second drawing board (2) is also rotatably connected to a hook (14) on the side near the handle (16), and the first drawing board (1) is welded to a rod (15) that engages with the hook (14) on the side away from the second drawing board (2).

5. A folding drawing board for graphic design according to claim 1, characterized in that: The limiting plate (10) has an anti-slip groove (17) on the side away from the pinion (9), and a limiting slider (18) that is slidably connected to the first drawing board (1) is welded to the side of the limiting plate (10) away from the anti-slip groove (17).

6. A folding drawing board for graphic design according to claim 1, characterized in that: The sliding plate (7) has an arc-shaped groove at the end away from the spring (8).

7. A folding drawing board for graphic design according to claim 2, characterized in that: The end of the clamping block (3) away from the rotating rod (4) is a trapezoid with a wider top and a narrower bottom, and a rubber pad (13) is glued to the bottom of the clamping block (3).

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