A paint brush coating device with automatic discharge

Abstract

This invention discloses an automatic paint application device, belonging to the field of architectural decoration technology. The key technical point is that the automatic paint application device includes a feeding assembly and a brushing structure. The feeding assembly includes a storage tank and a feeding pipe. One end of the feeding pipe is connected to the storage tank, and a feeding pump is connected to the feeding pipe. The brushing structure includes a brush roller, a brush box, and a control assembly for controlling the paint output. The brush box is connected to the brush roller, and the end of the feeding pipe away from the storage tank is connected to the brush box. A discharge pipe is fixedly connected to the brush box, located above the brush roller. The control assembly is connected to both the discharge pipe and the brush roller, thereby improving brushing efficiency.

Description

Technical Field

[0001] This invention relates to the field of architectural decoration, and in particular to an automatic paint application device. Background Technology

[0002] Currently, as people's demands for quality of life increase, their requirements for buildings also increase. In order to improve building quality, architectural decoration is necessary. Architectural decoration is the process of treating the interior and exterior surfaces and spaces of a building with decorative materials or ornaments in order to protect the main structure of the building, improve its physical performance, functionality, and beautify it.

[0003] To make building walls more aesthetically pleasing and clean, paint is typically applied. However, when using a paint roller, workers need to repeatedly dip their brushes into the paint can, which is time-consuming and laborious. To reduce worker fatigue caused by repeated paint application and improve painting results, an automatic paint-dispensing device is used. This device includes a paint roller, a feed pipe, and a storage tank. One end of the feed pipe connects to the paint roller, and the other end connects to the storage tank. A feed pump is connected to the feed pipe to deliver the paint stored in the storage tank to the paint roller, ensuring a sufficient amount of paint on the roller for continuous painting.

[0004] Regarding the aforementioned technologies, when workers do not need to apply paint to the wall temporarily, the distance between the workers and the storage tank makes it inconvenient to turn off the supply pump. The supply pipe continues to deliver paint to the brush roller, resulting in excessive paint on the brush roller, which leads to paint waste and may pollute the surrounding environment. When painting again, excessive paint may result in poor wall painting effect, and if the paint remains in the storage tank for too long, it may clog the supply pipe, affecting normal painting and resulting in low painting efficiency. Summary of the Invention

[0005] To improve coating efficiency, this invention provides an automatic coating brushing device with automatic material discharge.

[0006] The automatic paint application device provided by this invention adopts the following technical solution:

[0007] An automatic paint application device includes a feeding assembly and a brushing structure. The feeding assembly includes a storage tank and a feeding pipe. One end of the feeding pipe is connected to the storage tank, and a feeding pump is connected to the feeding pipe. The brushing structure includes a brush roller, a brushing box, and a control assembly for controlling the paint output. The brushing box is connected opposite to the brush roller. The end of the feeding pipe away from the storage tank is connected to the brushing box. A discharge pipe is fixedly connected to the brushing box and is located above the brush roller. The control assembly is connected to the discharge pipe and the brush roller respectively.

[0008] By adopting the above technical solution, under the action of the feeding pump, the paint stored in the storage tank can be transported to the brushing box for temporary storage through the feeding pipe. The control component controls the discharge volume of the feeding pipe, which allows the staff to reduce or stop the continued supply of paint to the brush roller when brushing is not required. This saves paint and prevents paint from falling onto the surrounding area and affecting environmental hygiene. It also saves the staff time to clean up excess paint and improves brushing efficiency.

[0009] Preferably, the control component includes an adjusting block located above the feeding pipe and slidably connected to the bottom surface of the brush coating box. The bottom surface of the brush coating box has an adjusting groove for the adjusting block to slide. The bottom area of ​​the adjusting block is larger than the top area of ​​the feeding pipe, and the sliding direction of the adjusting block is perpendicular to the length direction of the feeding pipe.

[0010] By adopting the above technical solution, the bottom area of ​​the adjusting block is larger than the top area of ​​the feeding pipe, so that when the adjusting block is above the feeding pipe, it can block the feeding pipe and stop the paint from being delivered to the brush roller. During the sliding process of the adjusting block, the amount of paint flowing out is also different due to the different sizes of the overlapping parts between the adjusting block and the feeding pipe, which makes it convenient for the staff to adjust the amount of paint according to the work needs.

[0011] Preferably, the brushing structure includes a connecting rod that passes through the brush roller and is rotatably connected to it. The control component includes two first connecting rods and two second connecting rods. The two first connecting rods are located at both ends of the brush roller. The two ends of the connecting rod are fixedly connected to the two first connecting rods. Each first connecting rod is connected to a support rod. The two ends of the support rod are fixedly connected to the opposite sides of the two first connecting rods. The support rod is rotatably connected to the brushing box. A torsion spring for resetting the brush roller is connected to the support rod. One end of the second connecting rod on the same side is hinged to the end of the first connecting rod away from the brush roller. The end of the second connecting rod away from the first connecting rod for driving the adjusting block to slide is rotatably connected to the adjusting block.

[0012] By adopting the above technical solution, when the brush roller comes into contact with the wall, the first connecting rod rotates around the support rod, and the first connecting rod drives the second connecting rod to move, causing the second connecting rod to move the adjusting block away from the feed pipe, so that the paint stored in the paint box flows to the surface of the brush roller. After the brush roller is rolled until the paint is evenly distributed on the surface of the brush roller, the wall can be painted. When the worker stops painting, the brush roller is moved away from the wall, and the first and second connecting rods are reset under the action of the torsion spring, pulling the adjusting block to slide and block the feed pipe, so that the paint will not continue to flow out. This achieves the effect of controlling the flow of paint according to the work needs and improves the painting efficiency.

[0013] Preferably, the brush coating structure further includes a brush coating handle, one end of which is fixedly connected to the side wall of the brush coating box away from the brush roller.

[0014] By adopting the above technical solution, workers can more easily control the brush roller by holding the brush handle, ensuring stable contact between the brush roller and the wall surface. Paint flows through the feed pipe onto the brush roller for painting. Moving the brush handle away from the wall allows the brush roller to return to its original position under the action of a torsion spring, which in turn causes the adjusting block to block the feed pipe, preventing paint from flowing out of the brush box. This reduces paint dripping from the brush roller, decreasing the time workers spend cleaning the surrounding environment, improving work efficiency, saving paint, and reducing waste.

[0015] Preferably, a material supply switch is connected to the end of the brush handle away from the brush box, the material supply switch is electrically connected to a control module, and the control module is electrically connected to the material supply pump.

[0016] By adopting the above technical solution, when the paint in the brushing box is about to run out, the staff can press the supply switch to make the control module control the supply pump to transport the paint in the storage box to the brushing box, which can achieve the effect of quickly replenishing the paint and improving the brushing efficiency.

[0017] Preferably, the brush box is connected to a stirring assembly for stirring the paint inside the brush box.

[0018] By adopting the above technical solution, the mixing component can mix the paint stored inside the storage tank, thereby keeping the paint with good fluidity and preventing it from drying out and clogging the feed pipe or affecting the brushing effect, so that the brushing work can be carried out continuously and the brushing efficiency can be improved.

[0019] Preferably, the mixing assembly includes a mixing plate, which is located inside the brush coating box and slidably connected to the brush coating box.

[0020] By adopting the above technical solution, when the paint is stored in the storage bin, the mixing plate slides in the storage bin, which can agitate the paint and keep it in good fluidity, making it easier for workers to continuously paint the wall and improve the painting quality.

[0021] Preferably, the sidewalls of the mixing plate abut against the inner wall of the brushing box, and the top surface of the mixing plate has a plurality of filter holes for filtering the coating.

[0022] By adopting the above technical solution, when the paint is fed into the brushing box through the feed pipe, the filter holes on the mixing plate can filter out particles or impurities in the paint. When the mixing plate slides, the paint repeatedly passes through the filter holes, which can be more thoroughly mixed, making it less likely for the paint to clump in the storage box and thus affect the brushing effect.

[0023] Preferably, one end of the brush roller is fixedly connected to a fixed ring that rotates synchronously with the brush roller. The stirring assembly includes a first gear, a second gear, a linkage sprocket, and a stirring cam. The first gear is sleeved on the fixed ring and fixedly connected to the fixed ring. The second gear is located below the brush box and rotatably connected to the brush box. The linkage sprocket, which rotates synchronously with the second gear, is located above the second gear. The linkage sprocket is connected to a linkage chain, which engages with the second gear and the linkage sprocket respectively. A synchronizing rod is fixedly connected to the side wall of the linkage sprocket near the brush box. The end of the synchronizing rod away from the linkage sprocket is rotatably connected to the brush box. A cam for driving the stirring plate to slide abuts against the stirring plate.

[0024] By adopting the above technical solution, when it is necessary to paint the wall, the brush roller comes into contact with the wall, causing the brush roller to drive the first gear to move closer to the second gear, and the first gear meshes with the second gear. The brush roller, which is covered with paint, rolls and paints on the wall, driving the first gear and the second gear to rotate. Under the action of the linkage chain, the linkage sprocket rotates, which drives the stirring cam to rotate, thereby causing the stirring plate to slide and stirring the paint in the paint box, so that the paint maintains good fluidity and improves the painting effect and efficiency.

[0025] Preferably, a slider is fixedly connected to the side wall of the mixing plate, and a corresponding groove is provided on the inner wall of the brush box for the slider to slide. The slider is connected to a buffer spring, which is located in the groove. One end of the buffer spring is fixedly connected to the bottom surface of the slider, and the other end is fixedly connected to the brush box.

[0026] By adopting the above technical solution, the slider slides in the groove, which makes the sliding of the stirring plate more stable. Under the action of the buffer spring, the stirring cam can always be in contact with the stirring plate, thereby improving the stirring effect of the stirring plate.

[0027] In summary, the present invention has the following beneficial effects:

[0028] 1. The storage tank can store a large amount of paint. Activating the feed pump allows the paint to be temporarily stored in the paint box via the feed pipe. The control unit controls the flow of paint from the paint box to the discharge pipe, which then delivers it to the brush roller, ensuring even coverage. This facilitates stable painting of the wall surface by the worker. The worker can adjust the amount of paint output from the discharge pipe using the control unit, allowing them to reduce or stop paint output as needed, saving time on cleaning excess paint and improving painting efficiency and quality.

[0029] 2. Under the action of the first and second connecting rods, the adjusting block slides in the adjusting groove, thereby controlling the connection between the discharge port and the discharge pipe. When the brush roller moves to abut against the wall and the first connecting rod rotates, the adjusting block slides away from the discharge port, allowing the paint to enter the discharge pipe through the discharge port and be transported to the roller brush through the discharge pipe. When the brush roller releases from abutment against the wall, the adjusting block resets under the action of the torsion spring and blocks the discharge port, stopping the paint delivery, thus saving paint and improving brushing efficiency.

[0030] 3. When the brush roller moves to contact the wall and moves the adjusting block away from the feed port, the first gear and the second gear mesh. During the up-and-down movement of the brush roller by the operator, the fixing ring drives the first gear to rotate. Under the action of the first gear, the second gear, the linkage sprocket, and the synchronizing rod, the stirring cam drives the stirring plate to slide along the length of the chute, stirring the paint temporarily stored in the brush box, making it less prone to clumping, and improving the fluidity of the paint flowing to the surface of the brush roller, thus improving the brushing efficiency. Attached Figure Description

[0031] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0032] Figure 2 This embodiment of the application is intended to show a partial cross-sectional view of the stirring plate.

[0033] Figure 3 This is a schematic diagram of a partial structure of the control component, as shown in the embodiments of this application.

[0034] Figure 4 This is a partial cross-sectional view of the adjustment groove and transition groove in this embodiment of the application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Feeding assembly; 11. Storage bin; 111. Feed pipe; 12. Feeding pipe; 121. Feeding pump; 2. Brushing structure; 21. Brushing box; 211. Observation window; 212. Discharge port; 213. Discharge pipe; 214. Transition groove; 215. Adjustment groove; 216. Slide groove; 22. Brush handle; 221. Feeding switch; 23. Brush roller; 231. Fixing ring; 24. Connecting rod; 25. Control assembly; 2 51. First connecting rod; 2511. Support rod; 2512. Torsion spring; 252. Second connecting rod; 2521. Transition rod; 253. Adjusting block; 3. Stirring assembly; 31. First gear; 32. Second gear; 321. Fixing frame; 33. Linkage sprocket; 331. Linkage chain; 332. Synchronizing rod; 34. Stirring cam; 35. Stirring plate; 351. Filter hole; 352. Slider; 353. Buffer spring. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings.

[0038] An automatic paint application device, such as Figure 1 As shown, it includes a feeding assembly 1, a brushing structure 2, and a mixing assembly 3. The brushing structure 2, which is used to brush paint onto the wall, is connected to the feeding assembly 1, and the mixing assembly 3, which is used to mix the paint, is connected to the brushing assembly.

[0039] like Figure 1 As shown, the feeding assembly 1 includes a storage bin 11 and a feeding pipe 12. The storage bin 11, which is used to store paint, has an inlet pipe 111 on its top surface, and the inside of the inlet pipe 111 is connected to the inside of the storage bin 11. One end of the feeding pipe 12 is connected to the storage bin 11, and a feeding pump 121 is connected to the feeding pipe 12. The feeding pump 121 is fixedly connected to the storage bin 11, and the inlet end of the feeding pump 121 extends into the inside of the storage bin 11.

[0040] like Figure 2 and Figure 3 As shown, the brush coating structure 2 includes a brush coating box 21, a brush handle 22, a brush roller 23, a connecting rod 24, and a control assembly 25, and a feed pipe 12 (see reference). Figure 1 The end furthest from the storage tank 11 is fixedly connected to the brush coating box 21, so that when the feed pump 121 is started, the paint in the storage tank 11 can be transported to the brush coating box 21. The brush coating box 21 is provided with a transparent observation window 211 for the staff to observe the paint storage inside the brush coating box 21. The bottom of the brush coating box 21 is provided with a discharge port 212 for paint to flow out from the inside of the brush coating box 21. The cross-sectional area of ​​the discharge port 212 gradually decreases at the end closest to the outside. The bottom of the brush coating box 21 is fixedly connected to a discharge pipe 213. The cross-sectional area of ​​the inlet of the discharge pipe 213 is equal to the bottom area of ​​the discharge port 212. The inlet of the discharge pipe 213 is located below the discharge port 212. The discharge pipe 213 is inclined and its length direction is parallel to the length direction of the discharge port 212. The inside of the discharge pipe 213 is connected to the inside of the brush coating box 21.

[0041] like Figure 1 and Figure 2As shown, one end of the brush handle 22 is fixedly connected to the end of the brush box 21 near the inlet of the feed pipe 213. The end of the brush handle 22 away from the brush box 21 is tilted downward. A feed switch 221 is fixedly connected to the brush handle 22. The feed switch 221 is connected to a control module. The control module is electrically connected to the feed switch 221 and the feed pump 121 respectively. The outer surface of the brush roller 23 is provided with a sponge or brush for receiving paint and brushing the paint onto the wall. The hollow brush roller 23 is rotatably connected to the brush box 21. The length direction of the brush roller 23 is parallel to the length direction of the feed pipe 213. The brush roller 23 is located below the brush box 21 and near the outlet of the feed pipe 213. The connecting rod 24 passes through the brush roller 23 and is rotatably connected to the brush roller 23. The length direction of the connecting rod 24 is parallel to the length direction of the brush roller 23.

[0042] like Figure 3 As shown, the control component 25 includes a first connecting rod 251, a second connecting rod 252, and an adjusting block 253. The first connecting rod 251 is a plate-like structure with an L-shaped longitudinal section. There are two first connecting rods 251, which are located on both sides of the brush roller 23. One end of the first connecting rod 251 is fixedly connected to the connecting rod 24, and the other end is close to the feed pipe 213. The first connecting rod 251 is connected to a support rod 2511. The two ends of the support rod 2511 are fixedly connected to the opposite sides of the first connecting rod 251. The support rod 2511 passes through the bottom surface of the brush box 21 and is rotatably connected to the brush box 21. A torsion spring 2512 is connected to the support rod 2511 to reset the first connecting rod 251 and the brush roller 23. There are two torsion springs 2512, which are respectively sleeved on the two ends of the support rod 2511 and fixedly connected to the support rod 2511.

[0043] like Figure 3 As shown, there are two second connecting rods 252. The two second connecting rods 252 are located at both ends of the brush roller 23. One end of the second connecting rod 252 on the same side is hinged to the end of the first connecting rod 251 away from the brush roller 23. The end of the second connecting rod 252 away from the first connecting rod 251 is connected to a transition rod 2521. The two ends of the transition rod 2521 are fixedly connected to the opposite side of the second connecting rod 252. The brush coating box 21 is provided with a transition groove 214 for the transition rod 2521 to slide. The sliding direction of the transition rod 2521 is perpendicular to the length direction of the feed tube 213.

[0044] like Figure 2 and Figure 4As shown, the adjusting block 253 is sleeved on the transition rod 2521 and fixedly connected to the transition rod 2521. The length direction of the adjusting block 253 is parallel to the length direction of the discharge port 212. The bottom surface of the brush coating box 21 is provided with an adjusting groove 215 for the adjusting block 253 to slide, so that the adjusting block 253 is slidably connected to the brush coating box 21 in a direction perpendicular to the length direction of the discharge port 212. The adjusting groove 215 is connected to the discharge port 212, and the top area of ​​the adjusting block 253 is larger than the top area of ​​the discharge port 212.

[0045] When in use, the staff moves the storage box 11 to a position close to the wall, and delivers the paint into the storage box 11 through the feed pipe 111. They hold the brush handle 22 and press the feed switch 221. The feed switch 221 sends an electrical signal to the control module, which then controls the feed pump 121 to pump the paint into the brush box 21.

[0046] The operator holds the brush handle 22 to move the brush roller 23 to the area to be painted, so that the brush roller 23 comes into contact with the wall. The first connecting rod 251 rotates, driving the second connecting rod 252 and the transition rod 2521 to move, so that the adjusting block 253 slides in the adjusting groove 215 until the discharge port 212 is connected to the discharge pipe 213. The paint in the brush box 21 flows to the surface of the brush roller 23 through the discharge pipe 213, so that the brush roller 23 with paint evenly distributed on the surface can carry out the painting work on the wall. The operator can control the amount of paint delivered to the brush roller 23 by the angle between the first connecting rod 251 and the brush box 21.

[0047] When it is necessary to pause or end the painting work, release the contact between the brush roller 23 and the wall surface, so that the first connecting rod 251 returns to the initial position under the action of the torsion spring 2512. The adjusting block 253 slides to block the feed port 212, stopping the paint box 21 from continuing to feed paint to the brush roller 23. This allows the staff to adjust the amount of paint on the brush roller 23 according to the work needs, thereby improving the painting efficiency.

[0048] like Figure 3 and Figure 4As shown, the mixing assembly 3 includes a first gear 31, a second gear 32, a linkage sprocket 33, a mixing cam 34, and a mixing plate 35. One end of the connecting rod 24, extending out of the brush roller 23, is fitted with a fixing ring 231. The fixing ring 231 is coaxial with the connecting rod 24 and is fixedly connected to the connecting rod 24. The first gear 31 is fitted on the fixing ring 231 and fixedly connected to the fixing ring 231, so that the first gear 31 rotates synchronously when the brush roller 23 rotates. The second gear 32 is located below the brush box 21. The second gear 32 is close to the end of the brush roller 23 connected to the fixing ring 231. The second gear 32 is located on the side of the first gear 31 close to the adjusting block 253. The second gear 32 is connected to a fixing frame 321. One end of the fixing frame 321 is fixedly connected to the side wall of the brush box 21 close to the first gear 31, and the other end is rotatably connected to the second gear 32, so that when the brush roller 23 abuts against the wall until the paint flows out from the discharge port 212, the first gear 31 moves to mesh with the second gear 32.

[0049] like Figure 4 As shown, the linkage sprocket 33 is located above the second gear 32. The linkage sprocket 33 is connected to the linkage chain 331. The linkage chain 331 is respectively sleeved on the linkage sprocket 33 and the second gear 32, so that the linkage sprocket 33 and the second gear 32 rotate synchronously. The side of the second gear 32 near the brush coating box 21 is fixedly connected to the synchronizing rod 332. The length direction of the synchronizing rod 332 is parallel to the length direction of the discharge port 212. The synchronizing rod 332 passes through the brush coating box 21 and is rotatably connected to the brush coating box 21.

[0050] like Figure 2 and Figure 4 As shown, the stirring cam 34 is sleeved on the synchronizing rod 332 and fixedly connected to the synchronizing rod 332. The cross-sectional area of ​​the stirring plate 35 is equal to the cross-sectional area of ​​the internal space of the brush coating box 21, so that the side walls of the stirring plate 35 abut against the inner wall of the brush coating box 21. The stirring plate 35 has multiple filter holes 351 for the paint to pass through. The stirring plate 35 is located below the stirring cam 34 and abuts against the stirring cam 34. The side walls of the stirring plate 35 perpendicular to the length direction of the discharge port 212 are fixedly connected to sliders 352. The inner wall of the brush coating box 21 is correspondingly provided with a groove 216 for the sliders 352 to slide vertically. A buffer spring 353 is fixedly connected to the bottom surface of the slider 352. The buffer spring 353 is located in the groove 216. The end of the buffer spring 353 away from the slider 352 is fixedly connected to the bottom surface of the groove 216 to balance the force on the stirring plate 35, so that the stirring plate 35 always abuts against the stirring cam 34.

[0051] The process of using this invention is as follows:

[0052] In use, press the feed switch 221 to turn on the feed pump 121, allowing the paint in the storage tank 11 to be transported to the brush box 21 through the feed pipe 12. When the brush roller 23 abuts against the wall and the adjusting block 253 moves away from the discharge port 212, the first gear 31 gradually approaches and meshes with the second gear 32. The paint in the brush box 21 is then transported to the brush roller 23 through the discharge port 212. When the worker is painting the wall, the brush roller 23 rotates, driving the fixing ring 231 and the first gear 31 to rotate. Under the action of the linkage chain 331, the second gear... The sprocket 32 ​​rotates synchronously with the linkage sprocket 33, causing the synchronizing rod 332 to drive the stirring cam 34 to rotate. Under the action of the buffer spring 353, the stirring cam 34 continuously abuts against the stirring plate 35. When the stirring cam 34 rotates, it drives the stirring plate 35 to slide along the length of the slide groove 216, thereby stirring the paint inside the brush box 21. The filter hole 351 can filter some particles in the paint. The paint passes through multiple filter holes 351 and flows continuously, further enhancing the stirring effect, making the paint conveyed to the brush roller 23 more fluid and enhancing the brushing effect.

[0053] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic paint coating device, comprising a feeding assembly (1) and a coating structure (2), wherein the feeding assembly (1) comprises a storage tank (11) and a feeding pipe (12), one end of the feeding pipe (12) is connected to the storage tank (11), and a feeding pump (121) is connected to the feeding pipe (12); the coating structure (2) comprises a brush roller (23), characterized in that: The brush coating structure (2) further includes a brush coating box (21) and a control component (25) for controlling the amount of paint discharged. The brush coating box (21) is connected to the brush roller (23). The end of the feed pipe (12) away from the storage box (11) is connected to the brush coating box (21). The brush coating box (21) is fixedly connected to a discharge pipe (213). The discharge pipe (213) is located above the brush roller (23). The control component (25) is connected to the discharge pipe (213) and the brush roller (23) respectively. The control component (25) includes an adjusting block (253), which is located above the feeding pipe (213) and slidably connected to the bottom surface of the brush coating box (21). The bottom surface of the brush coating box (21) is provided with an adjusting groove (215) for the adjusting block (253) to slide. The bottom area of ​​the adjusting block (253) is larger than the top area of ​​the feeding pipe (213), and the sliding direction of the adjusting block (253) is perpendicular to the length direction of the feeding pipe (213). The brushing structure (2) includes a connecting rod (24) that passes through the brush roller (23) and is rotatably connected to it. The control component (25) includes two first connecting rods (251) and two second connecting rods (252). The two first connecting rods (251) are located at both ends of the brush roller (23). The two ends of the connecting rod (24) are fixedly connected to the two first connecting rods (251). The first connecting rods (251) are connected to support rods (2511). The two ends of the support rods (2511) are respectively connected to the two first connecting rods (251). The first connecting rod (251) is fixedly connected to the opposite side, the support rod (2511) is rotatably connected to the brush box (21), and a torsion spring (2512) for resetting the brush roller (23) is connected to the support rod (2511). One end of the second connecting rod (252) on the same side is hinged to the end of the first connecting rod (251) away from the brush roller (23). The end of the second connecting rod (252) for driving the adjustment block (253) to slide away from the first connecting rod (251) is rotatably connected to the adjustment block (253). The brush coating box (21) is connected to a stirring assembly (3) for stirring the paint in the brush coating box (21). The stirring assembly (3) includes a stirring plate (35). The stirring plate (35) is located inside the brush coating box (21) and is slidably connected to the brush coating box (21). The side walls of the stirring plate (35) abut against the inner wall of the brush coating box (21). The top surface of the stirring plate (35) is provided with a plurality of filter holes (351) for filtering the paint. One end of the brush roller (23) is fixedly connected to a fixed ring (231) that rotates synchronously with the brush roller (23). The stirring assembly (3) includes a first gear (31), a second gear (32), a linkage sprocket (33), and a stirring cam (34). The first gear (31) is sleeved on the fixed ring (231) and fixedly connected to the fixed ring (231). The second gear (32) is located below the brush box (21) and rotates relative to the brush box (21). The linkage sprocket (33) rotates synchronously with the second gear (32). Located above the second gear (32), the linkage sprocket (33) is connected to a linkage chain (331), the linkage chain (331) is engaged with the second gear (32) and the linkage sprocket (33) respectively, the linkage sprocket (33) is fixedly connected to a synchronizing rod (332) near the side wall of the brush box (21), the end of the synchronizing rod (332) away from the linkage sprocket (33) is rotatably connected to the brush box (21), and the stirring cam (34) used to drive the stirring plate (35) to slide abuts against the stirring plate (35); A slider (352) is fixedly connected to the side wall of the stirring plate (35). A groove (216) is opened on the inner wall of the brush box (21) for the slider (352) to slide. A buffer spring (353) is connected to the slider (352). The buffer spring (353) is located in the groove (216). One end of the buffer spring (353) is fixedly connected to the bottom surface of the slider (352), and the other end is fixedly connected to the brush box (21).

2. The self-discharging paint brush coating apparatus of claim 1, wherein: The brush coating structure (2) also includes a brush coating handle (22), one end of which is fixedly connected to the side wall of the brush coating box (21) away from the brush roller (23).

3. A self-discharging paint brush applicator device according to claim 2, wherein: The end of the brush handle (22) away from the brush box (21) is connected to a feed switch (221), the feed switch (221) is electrically connected to a control module, and the control module is electrically connected to the feed pump (121).

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