Exterior wall paint application device and method

Abstract

This application relates to the field of paint application, and in particular to an exterior wall paint application apparatus and method. The apparatus includes a frame, a paint assembly, and a lifting assembly. The lifting assembly includes a sliding screw and a lifting platform. The end of the sliding screw rotates on the end face of the frame, and the lifting platform is threadedly connected to the outer wall of the sliding screw. The paint assembly includes a spray nozzle, multiple paint rollers, and multiple clamping scrapers. The spray nozzle sprays paint onto the exterior wall surface. The multiple paint rollers are sequentially and rotatably connected to the end face of the lifting platform, with their surfaces making rolling contact with the exterior wall surface. The multiple clamping scrapers are sequentially and spaced apart and fixed to the end face of the lifting platform, each clamping scraper corresponding to a paint roller. The clamping scrapers remove excess paint from the paint roller surfaces. The use of paint rollers and clamping scrapers in this application improves the smoothness of the exterior wall coating surface. Excess paint is removed by the clamping scrapers, achieving the collection of excess paint from the exterior wall surface, reducing material waste, and lowering the processing cost of the exterior wall surface.

Description

Technical Field

[0001] This application relates to the field of coating application, and in particular to an exterior wall coating application apparatus and method. Background Technology

[0002] Paint, traditionally known as lacquer in China, is used to coat the surface of objects to be protected or decorated, forming a continuous film that adheres firmly to the object. Exterior wall paint is used to coat the exterior walls of buildings.

[0003] Currently, when applying paint to the exterior walls of buildings, a support frame is usually installed on the top of the building. A suspended platform is then installed on the support frame, and workers use a paint roller to apply the paint to the exterior walls of the building, thus completing the painting process.

[0004] When workers encounter strong winds during construction on the end face of the suspended platform, the platform is prone to swaying. This can lead to repeated painting or missed areas of the building's exterior walls when using a paint roller, resulting in reduced smoothness of the exterior coating. Furthermore, repeated painting wastes paint and increases the processing cost of the exterior walls. Summary of the Invention

[0005] To improve the smoothness of building exterior wall coatings, this application provides an exterior wall coating application device and application method.

[0006] Firstly, this application provides an exterior wall coating application device, which adopts the following technical solution: An exterior wall coating application device includes a frame, a coating assembly, and a lifting assembly. The lifting assembly includes a sliding screw and a lifting platform. The end of the sliding screw rotates on the end face of the frame, and the rotation axis of the sliding screw is parallel to the height of the exterior wall. The lifting platform is threadedly connected to the outer wall of the sliding screw. The coating assembly is connected to the end face of the lifting platform. The coating assembly includes a spray nozzle, multiple brush rollers, and multiple clamping scrapers. The spray nozzle's spraying end faces the end face of the exterior wall and is used to spray coating onto the exterior wall end face. The multiple brush rollers are sequentially and rotatably connected to the end face of the lifting platform, with their rotation axes perpendicular to the axis of the sliding screw. The roller surfaces of the brush rollers are in rolling contact with the exterior wall end face. The spray nozzle is located between adjacent brush rollers. The multiple clamping scrapers are sequentially and fixedly fixed to the end face of the lifting platform, each clamping scraper corresponding to a brush roller. The end of each clamping scraper abuts against the roller surface of the brush roller and is used to scrape off excess coating from the roller surface.

[0007] By adopting the above technical solution, during the exterior wall coating process, workers drive the scaffolding to the end face of the exterior wall to be coated. The paint rollers abut against the end face of the exterior wall, and the end of the sliding screw is rotatably connected to the end face of the scaffolding, causing the lifting platform to slide against the outer wall of the sliding screw. The spray nozzle is located between two adjacent paint rollers, with the spray tip facing the end face of the exterior wall. The spray nozzle sprays paint onto the end face of the exterior wall, and the paint rollers roll in contact with the exterior wall, evenly coating the end face of the exterior wall with paint and absorbing any excess paint. On the surface of the painting roller, a clamping scraper corresponds one-to-one with the painting roller, and the end of the clamping scraper presses against the surface of the painting roller. When the painting roller rotates, the end of the clamping scraper scrapes off the excess paint on the surface of the painting roller, realizing real-time cleaning of the surface of the painting roller. The surface of the painting roller stably collects excess paint from the exterior wall, making the coating on the end face of the exterior wall less uneven, thereby improving the smoothness of the coating end face of the exterior wall. The excess paint is scraped off by the clamping scraper, realizing the collection of excess paint on the end face of the exterior wall, reducing material waste, lowering the processing cost of the end face of the exterior wall, and embodying the concept of energy saving.

[0008] Optionally, the end face of the lifting platform is connected to a collection box, which is used to collect excess paint. The opening of the collection box is located below the end of the pressing scraper away from the paint roller. The end face of the pressing scraper is inclined towards the collection box. Excess paint on the paint roller surface enters the inner cavity of the collection box along the end face of the pressing scraper under its own weight.

[0009] By adopting the above technical solution, one end of the pressing scraper abuts against the surface of the painting roller, and the other end of the pressing scraper is located above the opening of the collection box. The end face of the pressing scraper is inclined towards the collection box. When the surface of the painting roller rolls into contact with the wall, the end of the pressing scraper presses against the surface of the painting roller and scrapes off the excess paint. The scraped excess paint enters the inner cavity of the collection box along the end face of the pressing scraper due to its own gravity, making it less likely for excess paint to accumulate on the end face of the pressing scraper. This improves the stability of the pressing scraper in scraping the surface of the painting roller, allowing the painting roller to stably and evenly apply paint to the end face of the exterior wall, thereby improving the smoothness of the exterior wall coating. At the same time, it achieves the collection of excess paint on the end face of the wall, reducing material waste and lowering the processing cost of the exterior wall.

[0010] Optionally, the end face of the lifting platform is connected with multiple storage components at intervals. Each storage component corresponds to a pressing scraper. Each storage component includes a storage box and a storage tube. One end of the storage tube is connected to the inner cavity of the storage box, and the other end of the storage box faces the opening of the collection box. The opening of the storage box faces the bottom of the pressing scraper. The paint on the surface of the pressing scraper and the paint roller enters the inner cavity of the storage box under its own weight. The paint in the inner cavity of the storage box enters the inner cavity of the collection box through the storage tube under its own weight.

[0011] By adopting the above technical solution, the end of the pressing scraper rolls into contact with the surface of the painting roller. Excess paint on the surface of the painting roller easily adheres to the bottom of the pressing scraper. The opening of the storage box faces the bottom of the pressing scraper, and the paint adhering to the bottom of the pressing scraper enters the inner cavity of the storage box under its own weight. The paint stored in the inner cavity of the storage box enters the inner cavity of the collection box through the storage tube. This makes it less likely for the paint adhering to the contact point between the pressing scraper and the surface of the painting roller to fall onto the end face of the lifting platform under its own weight, further improving the collection of excess paint, reducing paint waste, and reducing the processing cost of the exterior wall.

[0012] Optionally, the end of the storage box near the storage tube is inclined toward the collection box.

[0013] By adopting the above technical solution, the end of the storage box near the storage tube is inclined in the direction of being closer to the collection box. The paint in the inner cavity of the storage box is guided by its own gravity to flow along the inner wall of the storage box in the direction of being closer to the storage tube, so that the paint is not easy to accumulate in the storage box, thereby improving the stability of excess paint entering the inner cavity of the collection box.

[0014] Optionally, the end face of the scraper is provided with a plurality of filter holes at even intervals. The filter holes are connected to the inner cavity of the storage box, and the coating on the end face of the scraper enters the inner cavity of the storage box after being filtered through the filter holes.

[0015] By adopting the above technical solution, the excess paint scraped off by the pressing scraper flows along the end face of the pressing scraper under its own gravity. The paint on the end face of the pressing scraper enters the inner cavity of the storage box through the filter holes under its own gravity, thereby achieving the screening of the paint on the end face of the pressing scraper, making it less likely for impurities to be mixed into the paint, thus improving the quality of the stored excess paint.

[0016] Optionally, the coating assembly further includes a power pump and a coating tank, both of which are connected to the end face of the lifting platform. One end of the power pump is connected to the inner cavity of the coating tank, and the other end is connected to the spray nozzle. The power pump is used to drive the coating in the coating tank to be sprayed out from the spray nozzle. A drive assembly is connected to the collection box, and the drive assembly drives the coating in the collection box into the inner cavity of the coating tank for recycling.

[0017] By adopting the above technical solution, during the processing of the exterior wall coating, the power pump drives the paint in the paint tank to spray out from the spray nozzle, thereby achieving the coating of the exterior wall; at the same time, excess paint on the paint roller surface enters the collection box through the pressing scraper, and the drive component drives the paint stored in the collection box into the paint tank, thereby achieving the reuse of excess paint, reducing paint waste, and improving paint utilization rate.

[0018] Optionally, the paint tank end face is provided with an exhaust hole, which communicates with the inner cavity of the paint tank. The drive assembly includes a drive pipe one, a drive pipe two, a drive screw, a drive piston, at least two synchronous rollers, and a synchronous belt used in conjunction with the synchronous rollers. The end of the drive screw is rotatably connected to the inner wall of the collection box, and the rotation axis of the drive screw is parallel to the axis of the paint roller. The drive piston is threadedly connected to the outer wall of the drive screw and slidably connected to the inner cavity of the collection box along the axis of the drive screw. One of the synchronous rollers is coaxially connected to the rotation axis of one of the paint rollers, and the other... The synchronous roller is coaxially connected to the end of the drive screw. The synchronous belt tensions and connects the two synchronous rollers. One end of the drive tube is connected to the inner cavity of the collection box, and the other end of the drive tube is connected to the inner cavity of the paint tank. One end of the drive tube is connected to the inner cavity of the collection box, and the other end of the drive tube is connected to the inner cavity of the paint tank. The drive tubes are located at both ends of the drive screw axis. When the painting roller rolls into contact with the end face of the outer wall, it drives the drive screw to rotate. The drive piston slides on the inner wall of the collection box and drives the paint in the collection box to enter the inner cavity of the paint tank through the drive tube.

[0019] By adopting the above technical solution, one synchronous roller is coaxially connected to the rotating shaft of one of the painting rollers, and the other synchronous roller is coaxially connected to the end of the drive screw. The two synchronous rollers are tensioned by a synchronous belt. When the roller surface of the painting roller rolls into contact with the outer wall, it drives the drive screw to rotate and connect to the inner cavity of the collection box. This drives the drive piston to slide along the axis of the drive screw and connect to the inner cavity of the collection box. When the drive piston slides towards the first drive tube, it drives the paint in the inner cavity of the collection box to enter the inner cavity of the paint tank through the first drive tube, thus transferring the paint in the collection box to the inner cavity of the paint tank. When the drive piston slides towards the second drive tube, it drives the paint in the inner cavity of the collection box to enter the inner cavity of the paint tank through the second drive tube. This eliminates the need for manual operation to drive the paint in the collection box into the paint tank. At the same time, it drives the air in the paint tank to be discharged from the exhaust port, preventing the air pressure in the paint tank from becoming too high and causing an explosion. This improves the service life of the paint tank and reduces the installation of external power equipment in the exterior wall coating construction device, thereby reducing the processing cost of the exterior wall coating construction device and further reducing the processing cost of the exterior wall coating.

[0020] Optionally, a warning assembly is connected to the lifting platform. The warning assembly includes an elastic element one, an elastic element two, and a warning block. A warning hole is provided on the end face of the lifting platform for the warning block to slide through. The warning hole extends through the end face of the lifting platform. One end of the elastic element two in the elastic direction is connected to the inner wall of the warning hole, and the other end in the elastic direction is connected to the end face of the warning block. The elastic element two has the elastic force to drive the warning block to slide towards the paint tank, and the end face of the warning block tends to protrude from the end face of the lifting platform. A slider is connected to the bottom of the paint tank, and a warning hole is provided on the end face of the lifting platform. A sliding groove for sliding the slider is provided. One end of the elastic element in the direction of elastic force is connected to the inner wall of the sliding groove, and the other end of the elastic element in the direction of elastic force is connected to the end face of the slider. The elastic element has the elastic force to drive the slider to slide towards the warning block. The elastic element is located on the side of the paint tank away from the warning block. When the weight of the paint tank decreases, the elastic element drives the paint tank to slide towards the warning block. The bottom of the paint tank abuts against the end face of the warning block and drives the warning block to slide towards the warning hole. The end of the warning block protrudes from the bottom of the lifting platform.

[0021] By adopting the above technical solution, the power pump drives the paint in the paint tank to be sprayed out from the spray nozzle. As the amount of paint in the paint tank decreases, the friction between the bottom of the paint tank and the end face of the lifting platform decreases. The elastic element's elastic force drives the paint tank to slide closer to the warning block. The bottom of the paint tank abuts against the end of the warning block and drives the warning block to slide closer to the warning hole. The end of the warning block protrudes from the bottom of the lifting platform, thereby alerting the staff to replenish the paint in the paint tank in time, avoiding damage to the power pump due to dry running, and thus extending the service life of the power pump.

[0022] Optionally, the end face of the warning block protruding from the lifting platform is provided with a guide surface. The guide surface is in the shape of a circular arc protrusion. The guide surface is used to abut against the bottom of the paint tank and guide the warning block to slide towards the warning hole.

[0023] By adopting the above technical solution, when the paint box slides towards the warning block, the guide surface abuts against the bottom of the paint box and guides the warning block to slide towards the warning hole. The end of the warning block protrudes from the bottom of the lifting platform, thereby improving the stability of the warning block's sliding.

[0024] Secondly, this application provides an exterior wall coating application method, which adopts the following technical solution: The method for applying exterior wall coatings includes the following steps: Surface preparation: Clean the surface of the exterior wall. Apply an exterior wall putty layer by applying putty slurry to the exterior wall base surface to form an exterior wall putty layer; Applying a coating involves pouring paint into an exterior wall paint application device, which then applies the paint to the exterior wall putty layer to form a coating.

[0025] By adopting the above technical solution, an exterior wall putty layer is applied to the base surface, and then a coating is formed by applying paint to the end face of the exterior wall putty layer using an exterior wall paint application device. Excess paint is not easily solidified and fixed on the end face of the exterior wall putty layer, thereby improving the smoothness of the exterior wall coating.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The setting of the paint roller and the clamping scraper makes the coating on the end face of the exterior wall less uneven, thereby improving the smoothness of the coating end face of the exterior wall. Excess paint is scraped off by the clamping scraper, realizing the collection of excess paint on the end face of the exterior wall, reducing material waste, reducing the processing cost of the end face of the exterior wall, and reflecting the concept of energy saving. 2. The collection box allows the paint roller to stably and evenly apply paint to the end face of the exterior wall, thereby improving the smoothness of the exterior wall coating. At the same time, it can collect excess paint from the end face of the wall, reduce material waste, and lower the processing cost of the exterior wall. 3. Setting of the drive component: The drive component drives the paint stored in the collection box into the paint tank, realizing the reuse of excess paint, reducing paint waste, and improving paint utilization rate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a partial cross-sectional view of an embodiment of this application, mainly showing the lifting assembly and the coating assembly.

[0029] Figure 3 This is a partial cross-sectional view of the lifting platform in an embodiment of this application, mainly showing the drive components.

[0030] Explanation of reference numerals in the attached drawings: 1. Exterior wall; 2. Frame; 3. Paint assembly; 31. Power pump; 32. Paint tank; 321. Vent; 33. Spray nozzle; 331. Spraying section; 332. Spraying section; 34. Paint roller; 35. Pressing scraper; 351. Filter hole; 4. Lifting assembly; 41. Lifting motor; 42. Sliding screw; 43. Lifting platform; 431. Mounting section; 4311. Slide groove; 4312. Warning hole; 432. Support section; 5. Flexible pipe one; 6. Flexible pipe two; 7. Collection box; 8. Storage assembly; 81. Storage tube; 82. Storage box; 9. Drive assembly; 91. Drive tube one; 92. Drive tube two; 93. Drive screw; 94. Drive piston; 95. Synchronous roller; 96. Synchronous belt; 10. End cap; 11. Slider; 12. Warning assembly; 121. Warning block; 1211. Guide surface; 122. Flexible element two; 123. Flexible element one; 13. Roller. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] This application discloses an exterior wall coating application apparatus. (Refer to...) Figure 1 and Figure 2 The exterior wall coating application device includes a frame 2, a coating assembly 3, and a lifting assembly 4. The lifting assembly 4 includes a lifting motor 41, a sliding screw 42, and a lifting platform 43. The lifting motor 41 is fixed to the bottom of the frame 2 with screws, and the motor shaft axis of the lifting motor 41 is parallel to the height direction of the exterior wall 1. One end of the sliding screw 42 passes through the outer wall of the frame 2 and is coaxially welded and fixed to the end of the motor shaft of the lifting motor 41. The end of the lifting platform 43 is threaded to the outer wall of the sliding screw 42, and the lifting platform 43 is positioned close to or away from the end face of the frame 2 along the axis of the sliding screw 42. The coating assembly 3 is connected to the end face of the lifting platform 43 and is used to evenly spray coating onto the end face of the exterior wall 1, thereby improving the smoothness of the coating on the exterior wall 1.

[0033] Reference Figure 2 The lifting platform 43 includes an installation part 431 and two support parts 432. Both the installation part 431 and the support parts 432 are square plates. One end of the installation part 431 in the length direction is rotatably connected to the outer wall of the sliding screw 42. One end of the two support parts 432 in the width direction is welded and fixed to the two ends of the installation part 431 in the width direction. The length direction of the support parts 432 is parallel to the length direction of the installation part 431, and the support parts 432 are located on the side of the installation part 431 away from the frame 2.

[0034] Reference Figure 1 and Figure 2 The paint assembly 3 includes a power pump 31, a paint tank 32, a spray nozzle 33, two paint rollers 34, and two clamping scrapers 35. In this embodiment, the power pump 31 is a paint pump, which is fixed to the end face of the mounting part 431 by screws. The paint tank 32 is connected to the end face of the mounting part 431 and is located on the side of the power pump 31 away from the outer wall 1. The spray nozzle 33 includes a spraying part 331 and multiple spraying parts 332. In this embodiment, the spraying part 331 is a pipe, and the spraying parts 332 are nozzles. The two ends of the spraying part 331 in the axial direction are welded and fixed to the opposite end faces of the two support parts 432. The spraying part 331 is located on the side of the power pump 31 closer to the outer wall 1. The multiple spraying parts 332 are fixed at intervals on the end face of the spraying part 331 facing the outer wall 1. The inner cavity of the spraying part 332 is connected to the inner cavity of the spraying part 331.

[0035] Reference Figure 1 and Figure 2An elastic pipe 5 connects the input end of the power pump 31 to the paint tank 32. In this embodiment, the elastic pipe 5 is made of silicone and has a certain deformation capacity. An elastic pipe 6 connects the output end of the power pump 31 to the spraying section 331. In this embodiment, the elastic pipe 6 is also made of silicone and has a certain deformation capacity. The power pump 31 drives the paint in the paint tank 32 to pass sequentially through the elastic pipe 5, the elastic pipe 6, and the spraying section 331, and then spray it out from the spraying section 332. The paint sprayed from the spraying section 332 is evenly coated on the end face of the outer wall 1, thus completing the coating of the outer wall 1.

[0036] Reference Figure 1 and Figure 2 Two painting rollers 34 are rotatably connected at their two ends along their axes to the opposite end faces of two support parts 432. A spraying part 331 is located between the two painting rollers 34, with its axis parallel to the axes of the painting rollers 34. The roller surface of the painting rollers 34 is used for rolling contact with the end face of the exterior wall 1. The painting rollers 34 drive the paint to be evenly distributed on the end face of the exterior wall 1. Simultaneously, excess paint on the end face of the exterior wall 1 adheres to the roller surface of the painting rollers 34, achieving the collection of excess paint on the end face of the exterior wall 1, thus ensuring even distribution of paint on the end face of the exterior wall 1 and improving the smoothness of the coating on the exterior wall 1.

[0037] Reference Figure 2 The clamping scraper 35 is a square plate. The two ends of the clamping scraper 35 are welded and fixed to the opposite end faces of the support part 432. The clamping scraper 35 corresponds to the paint roller 34, and the end face of the clamping scraper 35 is located below the paint roller 34. One end of the clamping scraper 35 presses against the roller surface of the paint roller 34 and scrapes off the excess paint from the end face of the paint roller 34. The other end of the clamping scraper 35 is inclined towards the direction of the power pump 31. A collection box 7 is welded and fixed to the mounting part 431 facing the end face of the clamping scraper 35. The opening of the collection box 7 faces the end of the clamping scraper 35 away from the paint roller 34.

[0038] Reference Figure 1 and Figure 2 When the surface of the paint roller 34 rolls into contact with the exterior wall 1, excess paint from the exterior wall 1 adheres to the surface of the paint roller 34. One end of the pressing scraper 35 presses against the surface of the paint roller 34 and scrapes off the excess paint. The scraped excess paint is guided along the end face of the pressing scraper 35 into the inner cavity of the collection box 7, thereby collecting the excess paint and preventing it from accumulating at the contact point between the pressing scraper 35 and the paint roller 34. This ensures the stability of the pressing scraper 35 in cleaning excess paint from the surface of the paint roller 34.

[0039] Reference Figure 2Two storage components 8 are connected to the end face of the lifting platform 43. These components collect paint dripping from the contact point between the scraper 35 and the paint roller 34. Each storage component 8 corresponds to a scraper 35 and includes a storage box 82 and a storage tube 81. In this embodiment, the storage box 82 is square. Both ends of the storage box 82 are welded and fixed to the opposite end faces of the support portion 432 along its length. The opening of the storage box 82 faces the bottom of the scraper 35, one end of the storage box 82 faces the contact point between the scraper 35 and the paint roller 34, and the other end of the storage box 82 is inclined towards the collection box 7. One end of the storage tube 81 is welded and fixed to the inner cavity of the storage box 82 along its axis, and the other end of the storage tube 81 faces the opening of the collection box 7.

[0040] Reference Figure 2 Multiple filter holes 351 are evenly spaced on the end face of the pressing scraper 35, and the filter holes 351 penetrate the outer wall of the pressing scraper 35 along its own axis. The end of the pressing scraper 35 presses against the roller surface of the brush roller 34 and drives the excess paint on the roller surface of the brush roller 34 to flow along the end face of the pressing scraper 35. The paint flowing on the end face of the pressing scraper 35 enters the inner cavity of the storage box 82 through the filter holes 351 under its own gravity. At the same time, part of the paint at the point where the pressing scraper 35 and the brush roller 34 press against each other enters the inner cavity of the storage box 82 along the bottom wall of the pressing scraper 35. This realizes the collection of excess paint on the upper and lower end faces of the pressing scraper 35, reducing paint loss. Meanwhile, the paint in the inner cavity of the storage box 82 enters the inner cavity of the collection box 7 through the inner cavity of the storage tube 81 under its own gravity, realizing the unified collection of paint.

[0041] Reference Figure 2 and Figure 3 A drive assembly 9 is connected to the collection box 7. The drive assembly 9 is used to drive the paint in the collection box 7 into the inner cavity of the paint tank 32 for recycling. The drive assembly 9 includes a drive tube 1 91, a drive tube 2 92, a drive screw 93, a drive piston 94, two synchronous rollers 95, and a synchronous belt 96 used in conjunction with the synchronous rollers 95. An exhaust hole 321 is provided on the end face of the paint tank 32 away from the mounting part 431, and the exhaust hole 321 communicates with the inner cavity of the paint tank 32. In this embodiment, both drive tube 1 91 and drive tube 2 92 are made of silicone, which has a certain deformation capability. One end of drive tube 1 91 is fixed to the outer wall of paint tank 32, and the other end of drive tube 1 91 is fixed to the outer wall of collection box 7. The inner cavity of paint tank 32, the inner cavity of drive tube 1 91 and the inner cavity of collection box 7 are connected in sequence. One end of drive tube 2 92 is fixed to the outer wall of paint tank 32, and the other end of drive tube 2 92 is fixed to the outer wall of collection box 7. The inner cavity of paint tank 32, the inner cavity of drive tube 2 92 and the inner cavity of collection box 7 are connected in sequence. Drive tube 1 91 and drive tube 2 92 are located at both ends of the length direction of collection box 7.

[0042] Reference Figure 3The two ends of the drive screw 93 are rotatably connected to the inner walls of the collection box 7, which are directly opposite each other. The rotation axis of the drive screw 93 and the length direction of the collection box 7 are parallel to each other. The material of the drive piston 94 can be rubber or silicone. In this embodiment, the material of the drive piston 94 is rubber, which has a certain deformation capability. The drive piston 94 is threaded to the outer wall of the drive screw 93, and the outer wall of the drive piston 94 is pressed against the inner wall of the collection box 7 to form a seal.

[0043] Reference Figure 3 One of the synchronous rollers 95 is coaxially welded and fixed to the end of the rotating shaft of one of the paint rollers 34, and the other synchronous roller 95 is coaxially welded and fixed to one end of the drive screw 93 along the axial direction. The synchronous belt 96 tensions and connects the two synchronous rollers 95. The end face of the support part 432 is connected to the end cover 10 covering the two synchronous rollers 95 and the synchronous belt 96, so that external impurities are not easily interfered with the synchronous rollers 95 driving the synchronous belt 96 to slide, thereby improving the stability of the synchronous rotation of the two synchronous rollers 95.

[0044] Reference Figure 1 and Figure 3 When the lifting platform 43 slides away from the frame 2 along the sliding screw 42, the roller surface of the paint roller 34 rolls into contact with the outer wall 1, causing the drive screw 93 to rotate. The drive piston 94 slides along the axis of the drive screw 93 towards the drive tube 91, causing the paint in the collection box 7 to enter the inner cavity of the paint box 32 through the drive tube 91. When the lifting platform 43 slides away from the frame 2 along the sliding screw 42, the roller surface of the paint roller 34 rolls into contact with the outer wall 1, causing the drive screw 93 to rotate in the opposite direction. The drive piston 94 slides along the axis of the drive screw 93 towards the drive tube 92, causing the paint in the collection box 7 to enter the inner cavity of the paint box 32 through the drive tube 92. This eliminates the need for external power equipment to drive the paint in the collection box 7 into the paint box 32, enabling the reuse of excess paint, reducing material consumption, and embodying the concept of energy saving.

[0045] Reference Figure 3 The paint box 32 is slidably connected to the end face of the mounting part 431. The sliding direction of the paint box 32 is parallel to the length direction of the mounting part 431. Slider 11 is welded and fixed at both ends of the bottom length direction of the paint box 32. Two sliding grooves 4311 are opened on the end face of the mounting part 431. The two sliding grooves 4311 are located on both sides of the width direction of the mounting part 431. The slider 11 corresponds to the sliding groove 4311 one by one and the slider 11 is slidably connected to the inner wall of the sliding groove 4311. The sliding groove 4311 is a strip groove. The length direction of the sliding groove 4311 is parallel to the length direction of the mounting part 431.

[0046] Reference Figure 2 and Figure 3A warning component 12 is connected to the lifting platform 43. The warning component 12 includes a warning block 121, an elastic element 122, and two elastic elements 123. The elastic elements 123 can be compression springs or tension springs. In this embodiment, the elastic elements 123 are compression springs and have a certain deformation capability. The elastic elements correspond one-to-one with the slider 11. One end of the elastic element 123 in the direction of elastic force is welded and fixed to the inner wall of the slide groove 4311, and the other end of the elastic element 123 in the direction of elastic force is welded and fixed to the end face of the slider 11. The elastic element 123 is located on the side of the paint tank 32 near the power pump 31. The elastic element 123 has the elastic force to drive the slider 11 to slide away from the power pump 31 along the inner wall of the slide groove 4311.

[0047] Reference Figure 2 and Figure 3 A warning hole 4312 is provided on the end face of the mounting part 431. The warning hole 4312 is located on the side of the paint tank 32 away from the elastic element 123. The axis of the warning hole 4312 is parallel to the axis of the sliding screw 42. The warning hole 4312 passes through the outer wall of the mounting part 431 along its own axis. The warning block 121 is slidably connected to the inner wall of the warning hole 4312. The sliding direction of the warning block 121 is parallel to the axis of the warning hole 4312. The elastic element 122 can be a compression spring or a tension spring. In this embodiment, the elastic element 122 is a compression spring and has a certain deformation capacity. One end of the elastic element 122 in the elastic direction is welded and fixed to the inner wall of the warning hole 4312, and the other end of the elastic element 122 in the elastic direction is welded and fixed to the end face of the warning block 121. The elastic element 122 has the elastic force to drive the warning block 121 to slide towards the paint tank 32, and the end of the warning block 121 protrudes from the end face of the mounting part 431.

[0048] Reference Figure 2 and Figure 3 The end of the warning block 121 protruding from the end face of the mounting part 431 is provided with a guide surface 1211. The guide surface 1211 is arc-shaped and protrudes. The guide surface 1211 is used to abut against the bottom of the paint tank 32 and guide the warning block 121 to slide towards the warning hole 4312. The bottom of the warning block 121 tends to protrude from the bottom of the mounting part 431. When the paint in the paint tank 32 is used up, the friction between the bottom of the paint tank 32 and the end face of the mounting part 431 is less than the elastic force of the elastic element 123. The elastic force of the elastic element 123 drives the paint tank 32 to slide towards the warning block 121. The guide surface 1211 abuts against the bottom wall of the paint tank 32 and guides the warning block 121 to slide towards the warning hole 4312. The bottom of the warning block 121 protrudes from the bottom of the mounting part 431, thereby alerting the staff to refill the paint tank 32 with paint in time, avoiding damage to the power pump 31 due to dry running, and thus extending the service life of the power pump 31.

[0049] Reference Figure 1Rollers 13 are connected to the four corners of the bottom of the frame 2. The wheel surface of the roller 13 rolls in contact with the ground, and rolling friction replaces sliding friction. The thrust required for the staff to move the frame 2 is reduced, thereby improving the ease of moving the frame 2.

[0050] The implementation principle of the exterior wall coating application device in this application embodiment is as follows: When applying the coating to the end face of the exterior wall 1, the coating sprayed by the spraying part 332 is evenly applied to the end face of the exterior wall 1, thus completing the coating of the exterior wall 1. The roller surface of the brush roller 34 is used for rolling contact with the end face of the exterior wall 1. The brush roller 34 drives the coating to be evenly distributed on the end face of the exterior wall 1. At the same time, excess coating on the end face of the exterior wall 1 adheres to the roller surface of the brush roller 34. One end of the scraper 35 presses against the roller surface of the brush roller 34 and scrapes off the excess coating. Excess paint on the roller 34 and paint flowing on the end face of the scraper 35 are drawn into the inner cavity of the storage box 82 through the filter hole 351 by their own gravity. At the same time, some paint at the point where the scraper 35 and the paint roller 34 are pressed together enters the inner cavity of the storage box 82 along the bottom wall of the scraper 35. This achieves the collection of excess paint on the upper and lower end faces of the scraper 35, reduces paint consumption, lowers the processing cost of the exterior wall 1, and makes the paint evenly distributed on the end face of the exterior wall 1, thereby improving the smoothness of the coating of the exterior wall 1.

[0051] This application also discloses an exterior wall coating application method, including the following steps: Surface preparation: Clean the surface of the exterior wall. Apply an exterior wall putty layer by applying putty slurry to the exterior wall base surface to form an exterior wall putty layer; Applying a coating involves pouring paint into an exterior wall paint application device, which then applies the paint to the exterior wall putty layer to form a coating.

[0052] The implementation principle of an exterior wall coating construction method in this application embodiment is as follows: by applying an exterior wall putty layer to the base surface, and then applying paint to the end face of the exterior wall putty layer using an exterior wall coating construction device to form a coating layer, excess paint is not easily solidified and fixed on the end face of the exterior wall putty layer, thereby improving the smoothness of the coating of the exterior wall 1.

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

Claims

1. An exterior wall coating application device, characterized in that: The system includes a frame (2), a paint assembly (3), and a lifting assembly (4). The lifting assembly (4) includes a sliding screw (42) and a lifting platform (43). The end of the sliding screw (42) rotates on the end face of the frame (2). The axis of rotation of the sliding screw (42) is parallel to the height of the outer wall (1). The lifting platform (43) is threaded to the outer wall of the sliding screw (42). The paint assembly (3) is connected to the end face of the lifting platform (43). The paint assembly (3) includes a spray nozzle (33), multiple paint rollers (34), and multiple clamping scrapers (35). 3) The spraying end faces the end face of the outer wall (1). The spray nozzle (33) is used to spray paint onto the end face of the outer wall (1). Multiple painting rollers (34) are sequentially and rotatably connected to the end face of the lifting platform (43). The rotation axis of the painting roller (34) is perpendicular to the axis of the sliding screw (42). The roller surface of the painting roller (34) is in rolling contact with the end face of the outer wall (1). The spray nozzle (33) is located between adjacent painting rollers (34). Multiple clamping scrapers (35) are sequentially and spaced apart and fixed to the end face of the lifting platform (43). The clamping scrapers (35) and the painting rollers (34) are connected in sequence. In one corresponding configuration, the end of the clamping scraper (35) presses against the surface of the paint roller (34), and the clamping scraper (35) is used to scrape off excess paint from the surface of the paint roller (34); a collection box (7) is connected to the end face of the lifting platform (43), and the collection box (7) is used to collect excess paint. The opening of the collection box (7) is located below the end of the clamping scraper (35) away from the paint roller (34), and the end face of the clamping scraper (35) is inclined towards the collection box (7). Excess paint from the surface of the paint roller (34) enters the collection box (7) along the end face of the clamping scraper (35) under its own weight. The coating assembly (3) also includes a power pump (31) and a coating tank (32). The power pump (31) and the coating tank (32) are both connected to the end face of the lifting platform (43). One end of the power pump (31) is connected to the inner cavity of the coating tank (32), and the other end of the power pump (31) is connected to the spray nozzle (33). The power pump (31) is used to drive the coating in the coating tank (32) to spray out from the spray nozzle (33). A drive assembly (9) is connected to the collection box (7). The drive assembly (9) drives the coating in the collection box (7) to enter the inner cavity of the coating tank (32) for recycling.The paint box (32) has an exhaust hole (321) on its end face, which is connected to the inner cavity of the paint box (32). The drive assembly (9) includes a drive tube (91), a drive tube (92), a drive screw (93), a drive piston (94), at least two synchronous rollers (95), and a synchronous belt (96) used in conjunction with the synchronous rollers (95). The end of the drive screw (93) is rotatably connected to the inner wall of the collection box (7). The rotation axis of the drive screw (93) is parallel to the axis of the paint roller (34). The drive piston (94) is threaded to the outer wall of the drive screw (93). The drive piston (94) is slidably connected to the inner cavity of the collection box (7) along the axis of the drive screw (93). One of the synchronous rollers (95) is coaxially connected to the rotation axis of one of the paint rollers (34). Roller (95) is coaxially connected to the end of drive screw (93). The synchronous belt (96) tensions and connects two synchronous rollers (95). One end of drive tube one (91) is connected to the inner cavity of collection box (7), and the other end of drive tube one (91) is connected to the inner cavity of paint box (32). One end of drive tube two (92) is connected to the inner cavity of collection box (7), and the other end of drive tube two (92) is connected to the inner cavity of paint box (32). Drive tube one (91) and drive tube two (92) are located at both ends of the axis of drive screw (93). When the painting roller (34) rolls into contact with the end face of the outer wall (1), it drives the drive screw (93) to rotate. The drive piston (94) slides on the inner wall of collection box (7) and drives the paint in collection box (7) to enter the inner cavity of paint box (32) through drive tube one (91) or drive tube two (92).A warning component (12) is connected to the lifting platform (43). The warning component (12) includes an elastic element one (123), an elastic element two (122), and a warning block (121). A warning hole (4312) for sliding of the warning block (121) is opened on the end face of the lifting platform (43). The warning hole (4312) penetrates the end face of the lifting platform (43). One end of the elastic element two (122) in the elastic direction is connected to the inner wall of the warning hole (4312), and the other end of the elastic element two (122) in the elastic direction is connected to the end face of the warning block (121). The elastic element two (122) has the elastic force to drive the warning block (121) to slide towards the paint tank (32), and the end face of the warning block (121) tends to protrude from the end face of the lifting platform (43). A slider (11) is connected to the bottom of the paint tank (32). A warning hole (121) is opened on the end face of the lifting platform (43). There is a groove (4311) for sliding the slider (11). One end of the elastic element (123) in the elastic direction is connected to the inner wall of the groove (4311), and the other end of the elastic element (123) in the elastic direction is connected to the end face of the slider (11). The elastic element (123) has the tendency to drive the slider (11) to slide closer to the warning block (121). The elastic element (123) is located on the side of the paint tank (32) away from the warning block (121). When the weight of the paint tank (32) decreases, the elastic element (123) drives the paint tank (32) to slide closer to the warning block (121). The bottom of the paint tank (32) abuts against the end face of the warning block (121) and drives the warning block (121) to slide closer to the warning hole (4312). The end of the warning block (121) protrudes from the bottom of the lifting platform (43).

2. The exterior wall coating application device according to claim 1, characterized in that: Multiple storage components (8) are spaced apart on the end face of the lifting platform (43). Each storage component (8) corresponds to a pressing scraper (35). Each storage component (8) includes a storage box (82) and a storage tube (81). One end of the storage tube (81) is connected to the inner cavity of the storage box (82). The other end of the storage box (82) faces the opening of the collection box (7). The opening of the storage box (82) faces the bottom of the pressing scraper (35). The paint on the surface of the pressing scraper (35) and the paint roller (34) enters the inner cavity of the storage box (82) by its own gravity. The paint in the inner cavity of the storage box (82) enters the inner cavity of the collection box (7) by its own gravity through the storage tube (81).

3. The exterior wall coating application device according to claim 2, characterized in that: The storage box (82) is inclined at the end near the storage tube (81) toward the collection box (7).

4. The exterior wall coating application device according to claim 3, characterized in that: The end face of the pressing scraper (35) is provided with a plurality of filter holes (351) at even intervals. The filter holes (351) are connected to the inner cavity of the storage box (82). The coating on the end face of the pressing scraper (35) is filtered through the filter holes (351) and then enters the inner cavity of the storage box (82).

5. The exterior wall coating application device according to claim 1, characterized in that: The warning block (121) has a guide surface (1211) on the end face of the lifting platform (43). The guide surface (1211) is in the shape of a circular arc protrusion. The guide surface (1211) is used to abut against the bottom of the paint box (32) and guide the warning block (121) to slide towards the warning hole (4312).

6. An exterior wall coating application method, characterized in that: Includes the following steps: Surface preparation: Clean the surface of the exterior wall. Apply an exterior wall putty layer by applying putty slurry to the exterior wall base surface to form an exterior wall putty layer; Applying a coating involves pouring paint into the exterior wall paint application device according to any one of claims 1-5, whereby the exterior wall paint application device applies the paint to the exterior wall putty layer to form a coating.

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