Adjustable drawing device

Abstract

The utility model discloses an adjustable drawing device which comprises a drawing board, a dovetail sliding groove is formed in the position, close to the edge of the upper end, of the front face of the drawing board, dovetail sliding blocks are symmetrically installed in the dovetail sliding groove in a sliding mode, elastic pressing plates are fixedly installed on the front faces of the dovetail sliding blocks, connecting lugs are fixedly installed on the back face of the drawing board, and the connecting lugs are fixedly connected with the dovetail sliding blocks. A connecting lug is fixedly installed on the drawing board, a connecting shaft is rotatably installed in the connecting lug, a supporting foot is fixedly installed on the connecting shaft, a limiting disc is fixedly installed at one end of the connecting shaft, a supporting base is fixedly installed at the position, located on one side of the connecting lug, of the rear face of the drawing board, and a through hole is formed in the supporting base. The elastic pressing plates are slidably installed on the front face of the drawing board through mutual cooperation of the dovetail sliding blocks and the dovetail sliding grooves, the elastic pressing plates are pulled upwards through the parts, extending out of the lower ends of the elastic pressing plates, at the moment, the elastic pressing plates can move at will, therefore, the distance between the two elastic pressing plates can be conveniently adjusted, and drawings of different sizes can be fixedly clamped.

Description

Technical Field

[0001] The utility model relates to a drawing board, in particular to an adjustable drawing device. Background Art

[0002] In traditional manual drawing, many drawing tools are needed, such as drawing boards, which can effectively improve drawing efficiency.

[0003] For example, the Chinese patent publication number CN214873868U discloses an angle-adjustable drawing device for product design, which includes a square plate, a first bracket and a second bracket fixedly connected to both ends of the square plate, and a drawing board movably connected to the first bracket and the second bracket. The four corners of the front surface of the drawing board are provided with snap-in grooves, and both sides of the drawing board are connected with snap-in components, and the rear side of the drawing board is also equipped with an adjustment mechanism. The utility model can quickly fasten the drawing paper to the drawing board through the snap-in component, and the fixed drawing paper is more conducive to subsequent drawing and ensures the drawing quality. At the same time, it greatly shortens the disassembly and assembly time of the drawing paper, and is easy to actually use the drawing paper. The adjustment mechanism can facilitate the user to adjust the use angle of the drawing board according to their own needs, and the scope of application has been greatly improved. In addition, the adjustment mechanism has good stability and is not easy to cause the drawing board to shake and other problems.

[0004] Some problems were found when using the angle-adjustable drawing device used in the above-mentioned existing product design. First, the way in which the support rod, the limit ring, and the mounting rod cooperate with each other, although it can effectively adjust the angle of the bracket, it makes the device as a whole a little bloated and inconvenient to carry. Secondly, the position of the clamping component is fixed and can only fix paper of a specified size. When the drawing size is small, the drawing cannot be effectively clamped and fixed. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable drawing device to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable drawing device, comprising a drawing board, a dovetail slot is provided on the front side of the drawing board and near the upper edge, a dovetail slider is symmetrically slidably installed in the dovetail slot, an elastic pressure plate is fixedly installed on the front side of the dovetail slider, a connecting ear is fixedly installed on the back of the drawing board, a connecting shaft is rotatably installed in the connecting ear, a support foot is fixedly installed on the connecting shaft, a limit disk is fixedly installed on one end of the connecting shaft, a support seat is fixedly installed on the back of the drawing board and on one side of the connecting ear, a through hole is provided in the support seat, a connecting column is slidably installed in the through hole, a chuck is fixedly installed on one end of the connecting column, and the chuck and the limit disk cooperate with each other.

[0007] Preferably, a handle is fixedly mounted on the drawing board.

[0008] Preferably, a non-slip rubber pad is fixedly installed under the elastic pressing plate.

[0009] Preferably, a limiting groove is provided on one side of the limiting disk, and a protrusion is fixedly mounted on the other side of the chuck, and the protrusion cooperates with the limiting groove.

[0010] Preferably, a limiting strip is fixedly mounted on the inner wall of the through hole, a limiting groove is provided on the outer wall of the connecting column, and the limiting strip and the limiting groove cooperate with each other.

[0011] Preferably, a return spring is sleeved on the connecting column, and a pull ring is fixedly installed on the other end of the connecting column.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The return spring provides a certain thrust for the chuck. The thrust drives the protrusion to be stuck into the limit groove. The protrusion cooperates with the limit groove to clamp the chuck and the limit plate together, thereby limiting the rotation of the support leg and fixing its angle. The connecting column is used to support the drawing board in an inclined state. Compared with the existing device, it occupies less space, making the overall device slightly simpler and lighter, and can be carried with the handle.

[0014] 2. The dovetail slider and the dovetail groove cooperate with each other to slide the elastic pressure plate on the front of the drawing board. The elastic pressure plate is pushed upward by the part extending from the lower end of the elastic pressure plate. At this time, the elastic pressure plate can be moved at will, so that the distance between the two elastic pressure plates can be easily adjusted, and drawings of different sizes can be fixed and clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the other side of the utility model;

[0017] Figure 3 This is a schematic diagram of the elastic pressure plate structure of the utility model;

[0018] Figure 4 It is a partial exploded view of the utility model.

[0019] In the figure: 1. drawing board; 101. dovetail slide; 102. handle; 103. connecting ear; 2. elastic pressure plate; 201. dovetail slider; 202. anti-skid rubber pad; 3. support foot; 301. connecting shaft; 302. limit plate; 303. limit groove; 4. support seat; 401. through hole; 402. limit strip; 5. connecting column; 501. chuck; 502. bump; 503. return spring; 504. limit groove; 505. pull ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: an adjustable drawing device, including a drawing board 1, a dovetail slot 101 is provided on the front side of the drawing board 1 and near the upper edge, a dovetail slider 201 is symmetrically slidably installed in the dovetail slot 101, an elastic pressing plate 2 is fixedly installed on the front side of the dovetail slider 201, a connecting ear 103 is fixedly installed on the back side of the drawing board 1, a connecting shaft 301 is rotatably installed in the connecting ear 103, a support leg 3 is fixedly installed on the connecting shaft 301, a limiting disk 302 is fixedly installed on one end of the connecting shaft 301, a supporting seat 4 is fixedly installed on the back side of the drawing board 1 and located on one side of the connecting ear 103, a through hole 401 is provided in the supporting seat 4, a connecting column 5 is slidably installed in the through hole 401, a chuck 501 is fixedly installed on one end of the connecting column 5, and the chuck 501 cooperates with the limiting disk 302.

[0022] In the present embodiment, the elastic pressure plate 2 is slidably installed on the front of the drawing board 1 through the cooperation between the dovetail slider 201 and the dovetail slot 101. The elastic pressure plate 2 is supported by a deformable material. In a normal state, the bottom of the elastic pressure plate 2 will contact the front of the drawing board 1, and the position of the elastic pressure plate 2 is fixed by friction. When it is necessary to move the elastic pressure plate 2, the elastic pressure plate 2 can be pushed upward by the part extending from the lower end of the elastic pressure plate 2 to release the contact with the front of the drawing board 1, thereby moving and adjusting the position of the elastic pressure plate 2. At the same time, the drawing can be pressed under the elastic pressure plate 2. The position of the elastic pressure plate 2 is adjustable and can fix drawings of different sizes. The support leg 3 is rotatably connected to the connecting ear 103 through the connecting shaft 301. The chuck 501 and the limit plate 302 cooperate with each other to limit the rotation of the connecting shaft 301, so that the support leg 3 can support the drawing board 1 at different angles.

[0023] In order to achieve the purpose of fixing the drawings, the device is implemented by the following technical solution: a handle 102 is fixedly installed on the drawing board 1, and an anti-slip rubber pad 202 is fixedly installed under the elastic pressure plate 2.

[0024] The handle 102 makes it easy to carry the device around, and the anti-skid rubber pad 202 can increase the friction between the drawing board 1 and the drawing, while fixing the position of the elastic pressure plate 2 and clamping the drawing on the front of the drawing board 1.

[0025] Among them, in order to achieve the purpose of fixing the connecting column 5, the present device is implemented by adopting the following technical scheme: a limiting groove 303 is provided on one side of the limiting disk 302, a protrusion 502 is fixedly installed on the other side of the chuck 501, the protrusion 502 and the limiting groove 303 cooperate with each other, a limiting strip 402 is fixedly installed on the inner wall of the through hole 401, a limiting groove 504 is provided on the outer wall of the connecting column 5, the limiting strip 402 and the limiting groove 504 cooperate with each other, a return spring 503 is sleeved on the connecting column 5, and a pull ring 505 is fixedly installed on the other end of the connecting column 5.

[0026] The limiting groove 504 cooperates with the limiting strip 402 to limit the rotation of the connecting column 5, and the return spring 503 can provide a certain thrust for the chuck 501. The chuck 501 is subjected to the thrust and the protrusion 502 is driven to be clamped into the limiting groove 303. The protrusion 502 cooperates with the limiting groove 303 to clamp the chuck 501 and the limiting plate 302 together. Since the connecting column 5 is restricted and cannot rotate, the rotation of the connecting shaft 301 is limited. Pulling the pull ring 505 drives the connecting column 5 to move. The movement of the connecting column 5 drives the chuck 501 to move out of the limiting groove 303, thereby releasing the restriction on the connecting shaft 301. At this time, the support leg 3 can be rotated at will to adjust the angle.

[0027] The working principle and use process of the utility model are as follows: when using, the device needs to be placed in a suitable position, the two elastic pressure plates 2 are moved to the edge positions on both sides, the drawing is placed at the center position of the front face of the drawing board 1, and the elastic pressure plate 2 is bent upward by the part extending from the lower end of the elastic pressure plate 2, so that the elastic pressure plate 2 is deformed and a gap appears between the front face of the drawing board 1. At this time, the elastic pressure plate 2 can be moved to the edge of the paper, and after loosening the elastic pressure plate 2, half of the elastic pressure plate 2 is pressed on the paper, and the other half is in contact with the front face of the drawing board 1, so that the paper is fixed on the front face of the drawing board 1, and the pull ring 505 is pulled to drive the connecting column 5 to move. The movement of the connecting column 5 will drive the chuck 501 to move out of the limiting groove 303, thereby releasing the restriction on the connecting shaft 301, and the support leg 3 can be rotated and adjusted to a suitable angle at will. When the pull ring 505 is loosened, the protrusion 502 will be reinserted into the limiting groove 303 under the push of the return spring 503, limiting the free rotation of the connecting shaft 301, thereby fixing the position of the support leg 3.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable drawing device, comprising a drawing board (1), characterized in that: A dovetail slot (101) is provided on the front side of the drawing board (1) near the upper edge, a dovetail slider (201) is symmetrically slidably mounted in the dovetail slot (101), an elastic pressure plate (2) is fixedly mounted on the front side of the dovetail slider (201), a connecting ear (103) is fixedly mounted on the back side of the drawing board (1), a connecting shaft (301) is rotatably mounted in the connecting ear (103), and a supporting rod (301) is fixedly mounted on the connecting shaft (301). A foot (3) is provided, a limit plate (302) is fixedly installed at one end of the connecting shaft (301), a support seat (4) is fixedly installed behind the drawing board (1) and on one side of the connecting ear (103), a through hole (401) is opened in the support seat (4), a connecting column (5) is slidably installed in the through hole (401), a chuck (501) is fixedly installed at one end of the connecting column (5), and the chuck (501) and the limit plate (302) cooperate with each other.

2. The adjustable drawing device according to claim 1, characterized in that: A handle (102) is fixedly mounted on the drawing board (1).

3. The adjustable drawing device according to claim 1, characterized in that: An anti-skid rubber pad (202) is fixedly mounted below the elastic pressure plate (2).

4. The adjustable drawing device according to claim 1, characterized in that: A limiting groove (303) is provided on one side of the limiting plate (302), and a protrusion (502) is fixedly mounted on the other side of the chuck (501), wherein the protrusion (502) and the limiting groove (303) cooperate with each other.

5. The adjustable drawing device according to claim 1, characterized in that: A limiting strip (402) is fixedly mounted on the inner wall of the through hole (401), a limiting groove (504) is provided on the outer wall of the connecting column (5), and the limiting strip (402) and the limiting groove (504) cooperate with each other.

6. The adjustable drawing device according to claim 1, characterized in that: A return spring (503) is sleeved on the connecting column (5), and a pull ring (505) is fixedly mounted on the other end of the connecting column (5).

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