Outdoor sketching easel with intelligent shading function

Abstract

This invention discloses an outdoor sketching easel with intelligent light-blocking function. It utilizes a hollow light-blocking main board and hollow light-blocking side panels to block light from the canvas. In strong light conditions, a micro-vacuum pump and a dust storage box soften the light; in weak light conditions, an adjustable light enhances the light. This intelligent light-blocking and dimming mechanism results in better painting effects. The easel is characterized by comprising a light-blocking and dimming device and a height adjustment device. The light-blocking and dimming device consists of a hollow light-blocking main board, an intelligent dimming box, a canvas, hollow light-blocking side panels, a connecting side tube, a light sensor, a dust storage box, a micro-vacuum pump, a connecting four-way connector, a connecting main tube, and an adjustable light. The intelligent dimming box is a square structure with an open top. The rear and left / right sides of the intelligent dimming box are made of transparent material. The canvas is placed on the inner bottom surface of the intelligent dimming box, and the size of the canvas is less than or equal to the size of the inner bottom surface of the intelligent dimming box.

Description

Technical Field

[0001] This invention relates to an outdoor sketching easel with intelligent light-blocking function. It belongs to the field of outdoor sketching easel technology and specifically relates to an outdoor sketching easel that uses a hollow light-blocking main board and hollow light-blocking side panels to block light from the drawing board. When the light is strong, a micro suction pump and a dust storage box soften the light, and when the light is weak, an adjustable lamp enhances the light. This intelligent light-blocking and light-adjusting outdoor sketching easel provides a better painting effect. Background Technology

[0002] Painters often need to go outdoors to sketch. Existing outdoor sketching easels generally only include an easel and a drawing board. When sketching outdoors, painters will encounter light of varying intensities. The light will shine directly onto the drawing board. Too strong or too weak light will affect the painter's vision. Too strong light will cause the painting to reflect light and make it difficult to capture details; too weak light will make the painting dark and the colors dull. The lack of intelligent light blocking and adjustment will result in the painting's light and shadow, brightness, and color not achieving the desired effect.

[0003] Publication No. CN217892384U discloses a portable painting device for art education, comprising: two support blocks arranged opposite each other, a drawing board for art teaching placed between the two support blocks, and a telescopic component fixedly installed on the drawing board to support it. The telescopic component supports the drawing board while also adjusting its height above the ground. When used outdoors in sunlight, this device uses a light-blocking frame and a light-blocking curtain to block sunlight. However, in strong light, it only blocks the sunlight and cannot further fine-tune the light to soften it. Furthermore, it is only suitable for sunlight; in weak light, it cannot enhance the light, and in excessively strong or weak light, it cannot intelligently adjust the brightness, still affecting the viewer's vision and causing the painting's light, shadow, and color to fail to achieve the desired effect. Summary of the Invention

[0004] To improve the above situation, the present invention provides an outdoor sketching easel with intelligent light-blocking function. It provides light-blocking for the drawing board through a hollow light-blocking main board and hollow light-blocking side panels. When the light is strong, it softens the light through a micro suction pump and a dust storage box. When the light is weak, it enhances the light through adjustable lights. It is an outdoor sketching easel with intelligent light-blocking and light-adjusting function, resulting in better painting effect.

[0005] The outdoor sketching easel with intelligent light-blocking function of this invention is implemented as follows: This invention provides an outdoor sketching easel with intelligent light-blocking function, which consists of a light-blocking and dimming device and a height adjustment device. The light-blocking and dimming device consists of a hollow light-blocking main board, an intelligent dimming box, a drawing board, hollow light-blocking side panels, a connecting side tube, a light sensor, a dust storage box, a miniature suction pump, a connecting four-way connector, a connecting main pipe, and an adjustment lamp. The intelligent dimming box has a square structure with an opening on the top. The rear and left and right sides of the intelligent dimming box are made of transparent material. The drawing board is placed on the inner bottom surface of the intelligent dimming box. The size of the drawing board is less than or equal to the size of the inner bottom surface of the intelligent dimming box. Preferably, the drawing board is detachably placed on the inner bottom surface of the intelligent dimming box. The front side of the drawing board is in contact with the front side of the intelligent dimming box. Preferably, the bottom surface of the intelligent dimming box has a structure that can extend laterally and longitudinally. Hollow light-shielding side panels are respectively placed on the left and right sides of the intelligent dimming box. The rear of the intelligent dimming box is equipped with a hollow light-shielding main board. The hollow light-shielding side panel is made of transparent material. The hollow light-shielding mainboard is made of transparent material. The dust storage box is located in the middle of the bottom surface of the intelligent dimming box. The air inlet of the miniature suction pump is located on the bottom surface of the dust storage box and is connected to the dust storage box. The four-way connector is located below the miniature suction pump. The air outlet of the miniature suction pump is connected to and communicates with the four-way connector. The hollow light-shielding side panels are respectively provided with one end of the connecting side tube, and are connected to one end of the connecting side tube. The other end of the connecting side pipe is connected to the connecting four-way valve respectively, and is in communication with the connecting four-way valve. One end of the main connecting pipe is connected to and communicates with the connecting four-way connector. The other end of the connecting pipe is placed on the hollow light-shielding main board and is connected to the hollow light-shielding main board. The intelligent dimming box has adjustable lights on its rear and left and right sides. Preferably, there are multiple adjustable lights, and the multiple adjustable lights are arranged at equal intervals along the length direction of the rear side and the left and right sides of the intelligent dimming box. The light sensor is located on the inner side of the smart dimming box. The bottom surface of the intelligent dimming box contains a signal converter, a data processor, and a controller. The light sensor is connected to the signal converter via a data transmission line. The miniature suction pump is connected to the controller via a data transmission line. The adjustable light is connected to the controller via a data transmission line. The signal converter is connected to the data processor via a data transmission line, and the data processor is connected to the controller via a data transmission line. The signal converter can convert the electrical signal of the light data in the smart dimming box collected by the light sensor into a digital signal. The controller can be implemented using one or more application-specific integrated circuits (ASICs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to execute instructions from a data processing device. The data processor and the signal converter interact with each other. The data processor stores a computer-readable storage medium, and when the computer-readable storage medium is executed, it performs the following steps: The received digital signal of the light data from the light sensor is processed, and the processed digital signal is compared with preset light data. If the digital signal of the light data is less than the preset light data, an execution command is sent to the controller. The controller then controls the adjustment lamp to turn on to adjust the light and enhance the light data in the intelligent dimming box until the light data equals the preset light data. At this point, the controller controls the adjustment lamp to stop adjusting the light and maintain the adjusted light to illuminate the canvas. If the digital signal of the light data is greater than the preset light data, an execution command is sent to the controller. The controller then controls the micro suction pump to start, and the micro suction pump draws dust from the dust storage box through the air inlet into the micro... A micro-pump is used to draw dust into the connecting four-way valve. Part of the dust enters the hollow light-shielding side plate through the connecting four-way valve and the connecting side pipe, while another part enters the hollow light-shielding main plate through the connecting four-way valve and the connecting main pipe. The dust entering the hollow light-shielding side plate and the hollow light-shielding main plate absorbs some sunlight while reflecting it in all directions, reducing the intensity of direct sunlight and softening the light. This weakens the lighting data in the intelligent dimming box until the lighting data equals the preset lighting data. At this point, the controller stops the micro-pump, maintaining the adjusted lighting to illuminate the canvas. This cycle repeats continuously, performing intelligent light shading and dimming, enabling the painting to achieve the desired effects in terms of light, shadow, brightness, and color.

[0006] Preferably, there are multiple adjustable lights, and all or only some of the adjustable lights can be turned on. The height adjustment device consists of height adjustment legs, anti-tipping feet, angle adjustment legs, and a connecting base. The bottom surface of the intelligent dimming box has a connecting seat rotatably mounted on each of its two sides. The other end of the connecting seat is respectively placed at one end of the height-adjustable support leg. The anti-tilt foot is located at the other end of the height-adjustable outrigger. The bottom center of the intelligent dimming box has a connecting base rotatably mounted at one end. The other end of the connecting seat is placed at one end of the angle-adjustable support leg. The anti-tilt foot is located at the other end of the angle-adjustable outrigger. Preferably, the bottom surface of the anti-tilting foot is uniformly provided with rubber anti-slip protrusions; Preferably, the anti-tilt foot is a cylindrical structure, and the diameter of the anti-tilt foot gradually increases from the top surface to the bottom surface; Furthermore, the bottom side of the height-adjustable outrigger is rotatably provided with an anti-tilt foot, and the bottom side of the angle-adjustable outrigger is rotatably provided with an anti-tilt foot. Preferably, there are multiple anti-tilt legs, and the multiple anti-tilt legs are arranged at equal intervals along the circumferential direction of the side of the height-adjustable leg, and the multiple anti-tilt legs are arranged at equal intervals along the circumferential direction of the side of the angle-adjustable leg. Furthermore, the four corners of the intelligent dimming box are respectively provided with insertion slots, and the two ends of the hollow light-shielding side plate are respectively provided with insertion posts. The insertion posts and insertion slots correspond to each other, and the insertion posts are inserted into the corresponding insertion slots. Beneficial effects

[0007] 1. The hollow light-blocking main board and hollow light-blocking side panels can block light and wind from the drawing board.

[0008] Second, when the light is strong, the micro suction pump and dust storage box can allow dust to enter the hollow light-blocking side panel and the hollow light-blocking main panel. While absorbing some of the sunlight, the dust reflects the light in all directions, which can reduce the intensity of direct sunlight and make the light in the intelligent dimming box softer, resulting in better painting effects.

[0009] Third, when the light is low, adjusting the lights can enhance the light inside the smart dimming box, resulting in better painting effects. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the outdoor sketching easel with intelligent light-blocking function of the present invention; Figure 2This is a structural schematic diagram of the outdoor sketching easel with intelligent light-blocking function of the present invention. Figure 3 This is a structural schematic diagram of the outdoor sketching easel with intelligent light-blocking function of the present invention, which only shows the structure of the adjustable lamp; Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention, which features an intelligent light-blocking easel. Figure 5 This is a schematic diagram of the structure of Embodiment 3 of the outdoor sketching easel with intelligent light-blocking function of the present invention. Attached Figure

[0011] The components include: a hollow light-blocking main board (1), an intelligent dimming box (2), a drawing board (3), a hollow light-blocking side panel (4), a connecting side tube (5), a height-adjustable support leg (6), an anti-tilt foot (7), an angle-adjustable support leg (8), a connecting seat (9), a light sensor (10), a dust storage box (11), a miniature suction pump (12), a connecting four-way connector (13), a connecting main pipe (14), an adjustable light (15), an anti-tilt foot (16), a plug-in post (17), and a plug-in slot (18). Detailed Implementation Example 1

[0012] The outdoor sketching easel with intelligent light-blocking function of this invention is implemented as follows: This invention provides an outdoor sketching easel with intelligent light-blocking function, which consists of a light-blocking and dimming device and a height adjustment device. The light-blocking and dimming device consists of a hollow light-blocking main board (1), an intelligent dimming box (2), a drawing board (3), a hollow light-blocking side plate (4), a connecting side pipe (5), a light sensor (10), a dust storage box (11), a micro suction pump (12), a connecting four-way connector (13), a connecting main pipe (14), and an adjustment lamp (15). The intelligent dimming box (2) has a square structure with an opening on the top surface. The rear and left and right sides of the intelligent dimming box (2) are made of transparent material. The drawing board (3) is placed on the inner bottom surface of the intelligent dimming box (2). The size of the drawing board (3) is less than or equal to the size of the inner bottom surface of the intelligent dimming box (2). Preferably, the drawing board (3) is detachably placed on the inner bottom surface of the intelligent dimming box (2). The front side of the drawing board (3) is in contact with the front side of the intelligent dimming box (2). Preferably, the bottom surface of the intelligent dimming box (2) has a structure that can be extended laterally and longitudinally. The smart dimming box (2) has hollow light-shielding side panels (4) on its left and right sides respectively. The intelligent dimming box (2) has a hollow light-shielding main board (1) on its rear side. The hollow light-shielding side panel (4) is made of transparent material. The hollow light-shielding main board (1) is made of transparent material. The dust storage box (11) is placed in the middle of the bottom surface of the intelligent dimming box (2). The air inlet of the miniature suction pump (12) is located on the bottom surface of the dust storage box (11) and is connected to the dust storage box (11). The four-way connector (13) is located below the miniature suction pump (12). The outlet of the micro suction pump (12) is connected to the connecting four-way connector (13) and is in communication with the connecting four-way connector (13). The hollow light-shielding side plate (4) is respectively provided with one end of the connecting side tube (5) and is connected to one end of the connecting side tube (5). The other end of the connecting side pipe (5) is connected to the connecting four-way connector (13) respectively, and is in communication with the connecting four-way connector (13). One end of the connecting main pipe (14) is connected to the connecting four-way connector (13) and is in communication with the connecting four-way connector (13). The other end of the connecting pipe (14) is placed on the hollow light-shielding main plate (1) and is connected to the hollow light-shielding main plate (1). The intelligent dimming box (2) is equipped with adjustment lights (15) on its rear side and both sides. Preferably, there are multiple adjustable lights (15), and the multiple adjustable lights (15) are arranged at equal intervals along the length direction of the rear side and the left and right sides of the intelligent dimming box (2). The light sensor (10) is placed on the inner side of the smart dimming box (2). The bottom surface of the intelligent dimming box (2) is equipped with a signal converter, a data processor, and a controller. The light sensor (10) is connected to the signal converter via a data transmission line. The miniature suction pump (12) is connected to the controller via a data transmission line. The regulating lamp (15) is connected to the controller via a data transmission line. The signal converter is connected to the data processor via a data transmission line, and the data processor is connected to the controller via a data transmission line. The signal converter can convert the electrical signal of the light data in the smart dimming box (2) collected by the light sensor (10) into a digital signal. The controller can be implemented using one or more application-specific integrated circuits (ASICs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to execute instructions from a data processing device. The data processor and the signal converter interact with each other. The data processor stores a computer-readable storage medium, and when the computer-readable storage medium is executed, it performs the following steps: The digital signal of the received illumination data from the illumination sensor (10) is processed, and the processed digital signal of the illumination data is compared with the preset illumination data. If the digital signal of the illumination data is less than the preset illumination data, an execution command is sent to the controller. The controller controls the adjustment lamp (15) to turn on to adjust the light and enhance the illumination data in the intelligent dimming box (2) until the illumination data is equal to the preset illumination data. Then, the controller controls the adjustment lamp (15) to stop adjusting the light and maintain the adjusted light to illuminate the drawing board (3). If the digital signal of the illumination data is greater than the preset illumination data, an execution command is sent to the controller. The controller controls the micro suction pump (12) to start. The micro suction pump (12) draws the dust in the dust storage box (11) through the air inlet to the micro suction pump (12). Dust enters the connecting four-way valve (13) from the outlet of the micro suction pump (12). Some dust enters the hollow light-shielding side plate (4) through the connecting side pipe (5) from the connecting four-way valve (13), and another part of dust enters the hollow light-shielding main plate (1) through the connecting main pipe (14) from the connecting four-way valve (13). The dust entering the hollow light-shielding side plate (4) and the hollow light-shielding main plate (1) absorbs some of the sunlight and reflects light in all directions, which can reduce the intensity of direct sunlight and make the light softer, thereby weakening the light data in the intelligent light-diffusing box (2) until the light data is equal to the preset light data. The controller controls the micro suction pump (12) to stop working, maintains the adjusted light, and illuminates the drawing board (3). This cycle repeats continuously, performing intelligent light shading and light adjustment, which can make the light, shadow, brightness, color, etc. of the painting achieve the expected effect.

[0013] Preferably, there are multiple adjustment lights (15), and all of the multiple adjustment lights (15) can be turned on or only some of them can be turned on. The height adjustment device consists of a height adjustment support leg (6), an anti-tilt foot (7), an angle adjustment support leg (8), and a connecting seat (9). The bottom surface of the intelligent dimming box (2) is respectively provided with one end of the connecting seat (9) which is rotatably placed on both sides. The other end of the connecting seat (9) is respectively placed at one end of the height-adjustable support leg (6). The anti-tilt foot (7) is located at the other end of the height-adjustable outrigger (6). One end of the connecting seat (9) is rotatably placed in the middle of the bottom surface of the intelligent dimming box (2). The other end of the connecting seat (9) is placed at one end of the angle adjusting leg (8). The anti-tilt foot (7) is placed at the other end of the angle-adjustable outrigger (8). Preferably, the bottom surface of the anti-tilting foot (7) is uniformly provided with rubber anti-slip protrusions; Preferably, the anti-tilt foot (7) is a cylindrical structure, and the diameter of the anti-tilt foot (7) gradually increases from the top surface to the bottom surface; In use, first adjust the height of the height adjustment leg (6) and the angle adjustment leg (8) respectively to make the height and angle of the drawing board (3) meet the painter's painting needs. Place the drawing paper or painting on the drawing board (3) for painting. The hollow light-blocking main board (1) and the hollow light-blocking side plate (4) provide light protection and wind protection for the drawing board (3). The light sensor (10) collects the light data in the intelligent dimming box (2) and transmits the light data to the signal converter. The signal converter converts the electrical signal of the light data into a digital signal and transmits the digital signal of the light data to the digital processor. The digital processor processes the received lighting data digital signal and compares the processed lighting data digital signal with the preset lighting data. If the lighting data digital signal is less than the preset lighting data, the data processor sends an execution command to the controller. The controller controls all or part of the adjustment lamps (15) to turn on to adjust the light and enhance the lighting data in the intelligent dimming box (2) until the lighting data equals the preset lighting data. Then, the controller controls the adjustment lamps (15) to stop adjusting the light and maintain the adjusted light to illuminate the drawing board (3). Illumination; if the digital signal of the illumination data is greater than the preset illumination data, the data processor sends an execution command to the controller, and the controller controls the micro suction pump (12) to start. The micro suction pump (12) draws the dust in the dust storage box (11) through the air inlet to the micro suction pump (12), and enters the connecting four-way valve (13) from the air outlet of the micro suction pump (12). A part of the dust enters the hollow light-shielding side plate (4) from the connecting four-way valve (13) through the connecting side pipe (5), and another part of the dust enters the hollow light-shielding side plate (4) from the connecting four-way valve (13) through the connecting main pipe (14). Inside the light main board (1), the dust entering the hollow light-blocking side plate (4) and the hollow light-blocking main board (1) absorbs some of the sunlight and reflects light in all directions, which can reduce the intensity of direct light and make the light softer, thereby weakening the lighting data in the intelligent light-diffusing box (2) until the lighting data equals the preset lighting data. The controller controls the micro suction pump (12) to stop working, maintains the adjusted light, and illuminates the drawing board (3). This cycle repeats continuously, performing intelligent light blocking and light adjustment, which can make the light, shadow, brightness, color, etc. of the painting achieve the expected effect. Example 2

[0014] The difference between this embodiment and embodiment 1 is that: the bottom side of the height-adjustable leg (6) is rotatably provided with anti-tilt feet (16), and the bottom side of the angle-adjustable leg (8) is rotatably provided with anti-tilt feet (16). There are multiple anti-tilt feet (16), and the multiple anti-tilt feet (16) are arranged equidistantly along the side of the height-adjustable leg (6) and the multiple anti-tilt feet (16) are arranged equidistantly along the side of the angle-adjustable leg (8). In use, the rotatable anti-tilt feet (16) can, on the one hand, cooperate with the anti-tilt feet (7) to provide better support for the height-adjustable leg (6) and the angle-adjustable leg (8) to prevent the easel from tilting; on the other hand, after the painter finishes painting, the anti-tilt feet (16) can be rotated back onto the height-adjustable leg (6) and the angle-adjustable leg (8), making it easier to carry and store. Example 3

[0015] The difference between this embodiment and embodiment 1 is that: the four corners of the intelligent dimming box (2) are respectively provided with insertion slots (18), and the two ends of the hollow light-shielding side plate (4) are respectively provided with insertion posts (17). The insertion posts (17) and the insertion slots (18) correspond to each other, and the insertion posts (17) are inserted into the corresponding insertion slots (18). When in use, when the painter is sketching outdoors, and the light is suitable and does not require shading or dimming, there is no need to install the hollow light-shielding main board (1) and the hollow light-shielding side plate (4), and the painter can directly paint on the drawing board (3). When the light is weak, there is no need to install the hollow light-shielding main board (1) and the hollow light-shielding side plate (4). The light-shielding main board (1) and the hollow light-shielding side panel (4) are connected by a controller to turn on the adjustment lamp (15) and adjust the light in the intelligent dimming box (2). When the light is too strong, the hollow light-shielding main board (1) and the hollow light-shielding side panel (4) are installed on the plug-in post (17) to shield the drawing board (3). The controller controls the micro suction pump (12) to start and adjust the light in the intelligent dimming box (2) to make the light soft. When the painter finishes painting, the hollow light-shielding main board (1) and the hollow light-shielding side panel (4) are removed from the plug-in post (17) for easier carrying and storage. The design of the drawing board (3) being detachably placed on the inner bottom surface of the intelligent dimming box (2) makes it easier for painters to change different sizes of drawing board (3) in the intelligent dimming box (2) according to their painting needs, and also makes it easier to carry and store the drawing board (3). The bottom of the intelligent dimming box (2) is designed to be horizontally and vertically retractable, which makes it easier for painters to install different sized drawing boards (3) in the intelligent dimming box (2) according to their painting needs. The intelligent dimming box (2) has a connecting seat (9) rotatably placed at the center of its bottom surface. On the one hand, when adjusting the angle adjustment feet and height adjustment feet, the intelligent dimming box (2) can rotate on the connecting seat (9) to adjust the angle and height. On the other hand, when the painter finishes painting, the angle adjustment feet and height adjustment feet can be rotated back to the bottom surface of the intelligent dimming box (2), making it easier to carry and store. The bottom surface of the anti-tilt foot (7) is uniformly provided with rubber anti-slip protrusions, which can increase the friction between the anti-tilt foot (7) and the ground, reduce the sliding of the anti-tilt foot (7), and provide better support and anti-tilt effect for the easel.

[0016] The goal is to achieve the purpose of intelligently blocking and adjusting the light, resulting in better painting effects, by using the hollow light-blocking main board (1) and the hollow light-blocking side plate (4) to block the light on the drawing board (3), softening the light when the light is strong by using the micro suction pump (12) and the dust storage box (11), and enhancing the light when the light is weak by using the adjustment lamp (15).

[0017] It should be noted that, unless otherwise explicitly specified and limited, the terms "placed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections such as folded edges, rivets, pins, adhesives, and welds; detachable connections such as threaded connections, snap-fit ​​connections, and hinges; integral connections; electrical connections; direct connections; or indirect connections via an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0018] It should be further noted that, in order to keep the description simple and clear, the above specific embodiments only describe the differences between them and other embodiments. However, those skilled in the art should know that the above specific embodiments are also independent technical solutions.

[0019] It should be noted that in this invention, "front," "rear," "left," and "right" are used in conjunction with the appendix. Figure 1 The terms "front", "back", "left", and "right" are used as references.

Claims

1. An outdoor sketching easel with intelligent light-blocking function, characterized in that: It consists of a light-blocking and dimming device and a height adjustment device. The light-blocking and dimming device comprises a hollow light-blocking main board, an intelligent dimming box, a drawing board, hollow light-blocking side panels, a connecting side tube, a light sensor, a dust storage box, a miniature suction pump, a connecting four-way connector, a connecting main pipe, and an adjustment lamp. The drawing board is placed on the inner bottom surface of the intelligent dimming box. Hollow light-blocking side panels are respectively placed on the left and right sides of the intelligent dimming box. The hollow light-blocking main board is placed on the rear side of the intelligent dimming box. The dust storage box is placed in the middle of the bottom surface of the intelligent dimming box. The air inlet of the miniature suction pump is placed on the bottom surface of the dust storage box and is connected to the height adjustment device. The dust storage box is connected to the connecting four-way valve located below the micro suction pump. The air outlet of the micro suction pump is connected to and communicates with the connecting four-way valve. Each of the hollow light-shielding side panels has a corresponding end of a connecting side pipe, which is connected to one end of the connecting side pipe. The other end of the connecting side pipe is connected to and communicates with the connecting four-way valve. One end of the connecting main pipe is connected to and communicates with the connecting four-way valve. The other end of the connecting main pipe is placed on the hollow light-shielding main plate and is connected to and communicates with the hollow light-shielding main plate. The intelligent dimming box is interconnected, with adjustable lights located on its rear and left / right sides. A light sensor is positioned on the inner side of the intelligent dimming box. A signal converter, a data processor, and a controller are located on the bottom of the intelligent dimming box. The light sensor is connected to the signal converter via a data transmission line. The micro-suction pump is connected to the controller via a data transmission line. The adjustable lights are connected to the controller via a data transmission line. The signal converter is connected to the data processor via a data transmission line. The data processor is connected to the controller via a data transmission line. The height adjustment device consists of a height adjustment leg, an anti-tilt foot, an angle adjustment leg, and a connecting base. One end of the connecting base is rotatably placed on each side of the bottom surface of the intelligent dimming box, and the other end of the connecting base is placed on one end of the height adjustment leg. The anti-tilt foot is placed on the other end of the height adjustment leg. One end of the connecting base is rotatably placed in the middle of the bottom surface of the intelligent dimming box, and the other end of the connecting base is placed on one end of the angle adjustment leg. The anti-tilt foot is placed on the other end of the angle adjustment leg.

2. The outdoor sketching easel with intelligent light-blocking function according to claim 1, characterized in that... The bottom side of the height-adjustable leg is rotatably provided with anti-tilt feet, and the bottom side of the angle-adjustable leg is rotatably provided with anti-tilt feet; there are multiple anti-tilt feet, and the multiple anti-tilt feet are equidistantly arranged along the circumferential direction of the side of the height-adjustable leg, and the multiple anti-tilt feet are equidistantly arranged along the circumferential direction of the side of the angle-adjustable leg.

3. An outdoor sketching easel with intelligent light-blocking function according to claim 1, characterized in that... The intelligent dimming box has four corresponding insertion slots at its four corners, and the hollow light-shielding side panel has insertion posts at both ends. The insertion posts and insertion slots correspond to each other, and the insertion posts are inserted into the corresponding insertion slots.

4. An outdoor sketching easel with intelligent light-blocking function according to claim 1, characterized in that... The intelligent dimming box is a square structure with an opening on the top surface, and the rear and left and right sides of the intelligent dimming box are made of transparent material.

5. An outdoor sketching easel with intelligent light-blocking function according to claim 1, characterized in that... The size of the drawing board is less than or equal to the size of the inner bottom surface of the smart dimming box. The drawing board is detachably placed on the inner bottom surface of the smart dimming box. The front side of the drawing board is in contact with the front side of the smart dimming box. The bottom surface of the smart dimming box has a structure that can be extended laterally and longitudinally.

6. An outdoor sketching easel with intelligent light-blocking function according to claim 1, characterized in that... The hollow light-shielding side panel is made of transparent material, and the hollow light-shielding main panel is made of transparent material.

7. An outdoor sketching easel with intelligent light-blocking function according to claim 1, characterized in that... There are multiple adjustable lights, which are arranged at equal intervals along the length of the rear side and the left and right sides of the intelligent dimming box.

8. An outdoor sketching easel with intelligent light-blocking function according to claim 1, characterized in that... The bottom surface of the anti-tilting feet is evenly covered with rubber anti-slip protrusions.

9. An outdoor sketching easel with intelligent light-blocking function according to claim 1 or 8, characterized in that... The anti-tilt foot is a cylindrical structure, and the diameter of the anti-tilt foot gradually increases from the top surface to the bottom surface.

10. An outdoor sketching easel with intelligent light-blocking function according to claim 1, characterized in that... The signal converter converts the electrical signal of the light data collected by the light sensor in the smart dimming box into a digital signal. The controller can be implemented by one or more application-specific integrated circuits (ASICs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to execute instructions from the data processing device. The data processor and the signal converter interact. The data processor stores a computer-readable storage medium. When executed, the computer-readable storage medium performs the following steps: processing the digital signal of the received light data from the light sensor, comparing the processed digital signal with preset light data; if the digital signal is less than the preset light data, sending an execution instruction to the controller; the controller then controls the adjustment lamp to turn on for light adjustment to enhance the light data in the smart dimming box until the light data equals the preset light data; finally, the controller controls the adjustment lamp to stop light adjustment, maintaining the adjusted light on the drawing board. Illumination is applied; if the digital signal of the illumination data is greater than the preset illumination data, an execution command is sent to the controller, which then controls the micro suction pump to start. The micro suction pump draws dust from the dust storage box through the air inlet, and the dust enters the connecting four-way connector from the air outlet. Part of the dust enters the hollow light-shielding side panel from the connecting four-way connector through the connecting side pipe, while another part of the dust enters the hollow light-shielding main board from the connecting four-way connector through the connecting main pipe, and then enters the hollow light-shielding side panel and the... The dust inside the hollow light-blocking main board absorbs some of the sunlight while reflecting it in all directions, reducing the intensity of direct sunlight and softening the light. This weakens the lighting data in the intelligent dimming box until the lighting data equals the preset lighting data. At this point, the controller stops the micro-suction pump, maintaining the adjusted lighting to illuminate the canvas. This cycle repeats continuously, performing intelligent light blocking and dimming, enabling the painting to achieve the desired effects in terms of light, shadow, brightness, and color. There are multiple adjustment lights, which can be turned on all at once or only partially.

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