A semi-automatic wall roller painting device
By designing a semi-automatic wall roller painting device, the problems of uneven paint application and low efficiency of manual operation have been solved, achieving uniform paint supply and improved painting effect, and adapting to the construction needs of walls of different heights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHANGJIAKOU ULAHADA WATER CONSERVANCY PROJECT CONSTRUCTION PROJECT CO LTD
- Filing Date
- 2026-04-28
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional wall roller devices are difficult to control precisely in terms of paint application, resulting in paint waste and uneven application. In addition, manual operation is inefficient and cannot meet the needs of high-efficiency construction.
A semi-automatic wall roller coating device was designed. It feeds material to the leveling roller through multiple equally spaced discharge pipes, and achieves semi-automatic feeding by combining the transmission of turntable, connecting rod and slide rod. The amount of coating is adjusted to ensure that the coating thickness on the surface of the coating roller is consistent. The leveling roller rotates relative to the coating roller to prevent coating sedimentation. The height of the device can be adjusted by a hand lever.
It achieves uniform coating distribution, reduces paint waste, improves construction efficiency, reduces labor intensity, ensures a smooth and even coating effect, and adapts to the painting needs of walls of different heights.
Smart Images

Figure CN122106256A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wall coating equipment technology, specifically a semi-automatic wall roller coating device. Background Technology
[0002] In building decoration and wall renovation projects, wall painting is a fundamental and crucial construction process. Paint rollers, as commonly used painting tools, are widely applied in various wall painting scenarios due to their ease of operation and wide applicability. Traditional wall roller devices are mostly manual structures, mainly consisting of a hand handle, paint holder, and paint roller. During use, the paint roller needs to be manually dipped into the paint bucket to pick up paint before applying it to the wall. This method of operation has many drawbacks in actual construction and cannot meet the demands for efficient and high-quality construction.
[0003] First, the amount of paint applied relies entirely on the operator's experience, making precise control difficult. This can easily lead to problems such as applying too much paint, causing drips and buildup on the wall, or applying too little, resulting in uneven application and missed spots. This not only affects the aesthetics and quality of the wall painting but also wastes paint. Second, the manual process of repeatedly applying paint is cumbersome and inefficient, especially in large-area wall painting operations. It involves high labor intensity for operators and a long construction period, making it difficult to meet the demands for efficient construction. Therefore, we need a semi-automatic wall roller painting device. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a semi-automatic wall roller coating device to achieve the aforementioned objectives.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a semi-automatic wall roller coating device, comprising: a coating rack, a coating roller rotatably connected to the inner wall of the coating rack, a leveling roller rotatably connected to the inner wall of the coating rack and to one side of the coating roller, a feeding assembly provided on one side of the coating rack, a hand handle provided at the lower end of the coating rack, and a storage box fixedly connected to one side of the coating rack.
[0006] The feeding assembly includes two supports fixedly connected to the upper end of the paint rack. A conveying pipe is fixedly connected to the upper end of the two supports. Multiple discharge pipes are fixedly connected to the outer wall of the conveying pipe, and the multiple discharge pipes are distributed at equal intervals. A feeding box is fixedly connected to one side of the paint rack. A piston plate is slidably connected to the inner wall of the feeding box. A sliding rod is fixedly connected to one side of the piston plate. An inlet and an outlet are fixedly connected to one side of the feeding box. The inlet is connected to the conveying pipe through a flexible hose.
[0007] Preferably, a one-way valve is installed on the outer wall of both the inlet and outlet, and the inlet is connected to the storage tank via a hose.
[0008] Preferably, the feeding assembly further includes a turntable, a groove is provided on one side of the turntable, a screw is rotatably connected to the inner wall of the groove, a rotating rod is rotatably connected to the outer wall of the turntable, the rotating rod passes through one side of the groove and is fixedly connected to the screw, a threaded sleeve is threadedly connected to the outer wall of the screw, a connecting rod is rotatably connected to one side of the threaded sleeve, and a sliding rod passes through one end of the feeding box and is rotatably connected to the connecting rod.
[0009] Preferably, a stirring rod is rotatably connected to the inner wall of the storage box, a stirring blade is fixedly connected to the outer wall of the stirring rod, and a pulley is fixedly connected to the outer wall of one end of the stirring rod that passes through the storage box and the paint rack.
[0010] Preferably, the two ends of the coating roller and the leveling roller are respectively fixedly connected to a rotating shaft one and a rotating shaft two. A housing is fixedly connected to one side of the coating frame. Four gears are rotatably connected to the inner wall of the housing, and all four gears are meshed. The gear on the left side is fixedly connected to the rotating shaft two. The rotating shaft two passes through one end of the housing and is fixedly connected to the turntable. The gear on the right side is fixedly connected to the rotating shaft one.
[0011] Preferably, a pulley two is fixedly connected to the outer wall of the end of the rotating shaft two away from the gear, and a belt is installed between the pulley two and the pulley one.
[0012] Preferably, a telescopic rod is slidably connected to the inner wall of the upper end of the handheld rod, a threaded rod is threadedly connected to the outer wall of the handheld rod, a plurality of threaded holes are equally spaced on the outer wall of the telescopic rod, the threaded rod passes through the telescopic rod and is threadedly connected to the inner wall of the threaded hole, and the upper end of the telescopic rod is fixedly connected to the paint rack.
[0013] Preferably, the leveling roller is located on one side of the coating roller and abuts against each other, and the plurality of discharge pipes are all located at the upper end of the leveling roller.
[0014] Compared with the prior art, the present invention provides a semi-automatic wall roller coating device, which has the following beneficial effects:
[0015] Multiple equally spaced discharge pipes can be used to feed material evenly to the leveling roller at multiple points. At the same time, the leveling roller and the paint roller collide with each other and rotate relative to each other, which can further spread and comb the paint, ensuring that the paint thickness on the paint roller surface is consistent, thus making the wall painting effect smooth and even.
[0016] Through the transmission and cooperation of the turntable, connecting rod and slide bar, the rotation of the paint roller is converted into the reciprocating power of the piston plate, realizing semi-automatic feeding, reducing the physical consumption of workers. At the same time, by rotating the rotating rod to drive the screw to rotate, the threaded sleeve can be driven to slide along the groove, changing the movement stroke of the connecting rod, and thus adjusting the sliding distance of the piston plate to regulate the amount of material supplied. This avoids the waste caused by excessive paint dripping, and also prevents the paint from being too little and affecting the painting effect, effectively improving the paint utilization rate and reducing construction costs.
[0017] The rotation of the material-equalizing roller drives the second pulley to rotate, which in turn drives the first pulley to rotate via a belt. This, in turn, causes the stirring rod to rotate the stirring blades, stirring the paint in the storage tank and effectively preventing the paint from settling and separating. The overall length of the device can be flexibly adjusted according to the construction height by using the extension and retraction of the hand handle and telescopic rod, adapting to the painting needs of walls of different heights. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 This is a schematic diagram of the coating rack structure from the front view of the present invention;
[0020] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0021] Figure 4 This is a schematic diagram of the paint rack structure from the rear view of the present invention;
[0022] Figure 5 This is a schematic cross-sectional view of the feeding box structure of the present invention;
[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the housing of the present invention.
[0024] In the diagram: 1. Paint rack; 2. Paint roller; 3. Spreading roller; 4. Feeding assembly; 5. Hand lever; 6. Storage box; 7. Housing; 8. Gear; 9. Belt; 401. Support; 402. Conveying pipe; 403. Discharge pipe; 404. Feeding box; 405. Piston plate; 406. Slide rod; 407. Feed inlet; 408. Discharge outlet; 41. Turntable; 42. Tank; 43. Screw; 44. Rotating rod; 45. Threaded sleeve; 46. Connecting rod; 601. Stirring rod; 602. Stirring blade; 603. Pulley one; 201. Rotating shaft one; 301. Rotating shaft two; 302. Pulley two; 501. Telescopic rod; 502. Threaded rod; 503. Threaded hole. Detailed Implementation
[0025] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.
[0026] Please see Figure 1-6 This invention provides a technical solution for a semi-automatic wall coating roller device, comprising: a coating rack 1, a coating roller 2 rotatably connected to the inner wall of the coating rack 1, a leveling roller 3 rotatably connected to the inner wall of the coating rack 1 and located on one side of the coating roller 2, a feeding assembly 4 provided on one side of the coating rack 1, a hand handle 5 provided at the lower end of the coating rack 1, a storage box 6 fixedly connected to one side of the coating rack 1, and a feeding port provided on one side of the storage box 6. In addition, an observation window is provided at the upper end of the storage box 6 for workers to check the remaining coating.
[0027] The feeding assembly 4 includes two supports 401 fixedly connected to the upper end of the paint rack 1. A conveying pipe 402 is fixedly connected to the upper end of the two supports 401. Multiple discharge pipes 403 are fixedly connected to the outer wall of the conveying pipe 402, and the discharge pipes 403 are evenly spaced. A feeding box 404 is fixedly connected to one side of the paint rack 1. A piston plate 405 is slidably connected to the inner wall of the feeding box 404. A sliding rod 406 is fixedly connected to one side of the piston plate 405. An inlet 407 and an outlet 408 are fixedly connected to one side of the feeding box 404, respectively. The inlet 407 is connected to the conveying pipe 402 via a flexible hose. The feeding assembly 4 evenly distributes the paint onto the surface of the paint roller 2, avoiding uneven wall coating caused by localized paint accumulation. The reciprocating sliding of the piston plate 405 within the feeding box 404 enables multiple equal-volume feedings. The multiple outlet pipes 403 feed the paint to the leveling roller 3, preventing uneven distribution caused by single-point feeding.
[0028] One-way valves are installed on the outer walls of both the inlet 407 and the outlet 408. The inlet 407 is connected to the storage tank 6 via a hose. The one-way valves prevent backflow of the paint and ensure unidirectional flow of the paint.
[0029] The feeding assembly 4 also includes a turntable 41. A groove 42 is formed on one side of the turntable 41. A screw 43 is rotatably connected to the inner wall of the groove 42, and a rotating rod 44 is rotatably connected to the outer wall of the turntable 41. The rotating rod 44 passes through one side of the groove 42 and is fixedly connected to the screw 43. A threaded sleeve 45 is threadedly connected to the outer wall of the screw 43. A connecting rod 46 is rotatably connected to one side of the threaded sleeve 45. A sliding rod 406 passes through one end of the feeding box 404 and is rotatably connected to the connecting rod 46. The rotation of the turntable 41 drives the connecting rod 46 to move, thereby causing the sliding rod 406 to slide back and forth. By rotating the rotating rod 44, the threaded sleeve 45 slides along the inner wall of the groove 42, thereby changing the movement distance of the connecting rod and thus adjusting the feeding amount.
[0030] A stirring rod 601 is rotatably connected to the inner wall of the storage tank 6, and a stirring blade 602 is fixedly connected to the outer wall of the stirring rod 601. A pulley 603 is fixedly connected to the outer wall of the end of the stirring rod 601 that passes through the storage tank 6 and the paint rack 1. The rotation of the pulley 603 drives the stirring rod 601 and the stirring blade 602 to rotate, thereby stirring the paint inside the storage tank 6, ensuring the uniformity of the paint and preventing sedimentation.
[0031] The paint roller 2 and the leveling roller 3 are respectively fixedly connected to two ends of a rotating shaft 201 and a rotating shaft 301. A housing 7 is fixedly connected to one side of the paint frame 1. Four gears 8 are rotatably connected to the inner wall of the housing 7, and all four gears 8 are meshed. The gear 8 on the left side is fixedly connected to the rotating shaft 301, which passes through one end of the housing 7 and is fixedly connected to the turntable 41. The gear 8 on the right side is fixedly connected to the rotating shaft 201. The paint roller 2 and the leveling roller 3 rotate relative to each other through the gears 8, and the rotation of the gears 8 drives the rotating shaft 301 and the pulley 302 to rotate.
[0032] A pulley 302 is fixedly connected to the outer wall of the end of the shaft 301 away from the gear 8. A belt 9 is installed between pulley 302 and pulley 603, and pulley 302 and pulley 603 are connected by belt 9. The rotation of pulley 302 drives pulley 603 to rotate through belt 9.
[0033] A telescopic rod 501 is slidably connected to the inner wall of the upper end of the handheld rod 5, and a threaded rod 502 is threadedly connected to the outer wall of the handheld rod 5. Multiple threaded holes 503 are evenly spaced on the outer wall of the telescopic rod 501. The threaded rod 502 passes through the telescopic rod 501 and is threadedly connected to the inner wall of the threaded hole 503. The upper end of the telescopic rod 501 is fixedly connected to the paint rack 1. The height of the paint rack 1 can be adjusted by sliding the telescopic rod 501 against the handheld rod 5. The threaded connection between the threaded rod 502 and the threaded hole 503 is used to lock the telescopic rod 501.
[0034] The leveling roller 3 is located on one side of the coating roller 2 and is in contact with it. Multiple discharge pipes 403 are located at the upper end of the leveling roller 3. The leveling roller 3 and the coating roller 2 rotate relative to each other to achieve leveling, ensuring that the coating thickness on the surface of the coating roller 2 is uniform. The coating is dripped onto the surface of the leveling roller 3 through the discharge pipes 403, and the coating is spread in conjunction with the rotation of the leveling roller 3.
[0035] In practical use, this invention serves as a semi-automatic wall coating roller device. Before coating, the coating is added to the storage tank 6 through the feeding port. During coating, the operator holds the handle 5 to press the coating roller 2 against the wall surface and pushes it up and down. At this time, the coating roller 2 rotates, which drives the right gear 8 to rotate via the first rotating shaft 201. The rotation of the right gear 8 drives the left gear 8 to rotate, which in turn causes the second rotating shaft 301 to rotate in the opposite direction. This causes the coating roller 2 and the leveling roller 3 to rotate relative to each other. The rotation of the second rotating shaft 301 drives the turntable 41 to rotate, which in turn pulls the sliding rod 406 back and forth linearly via the connecting rod 46. The sliding rod 406 drives the piston plate 405 to slide back and forth. When the piston plate 405 is pulled, the storage tank... The paint in 6 enters the feeding box 404 through the inlet 407; when the piston plate 405 pushes, the paint inside the feeding box 404 is transported to the conveying pipe 402 through the outlet 408, and then drips onto the surface of the leveling roller 3 through multiple outlet pipes 403. The leveling roller 3 and the paint roller 2 rotate relative to each other. The paint on the leveling roller 3 is applied to the surface of the paint roller 2 during the rotation process, ensuring that the paint thickness on the surface of the paint roller is consistent. When it is necessary to adjust the paint thickness or the amount of material supplied, the rotating rod 44 can be rotated to drive the screw 43 to rotate, so that the threaded sleeve 45 slides along the inner wall of the groove 42, changing the movement distance of the connecting rod 46, thereby adjusting the sliding distance of the piston plate 405, thus completing the adjustment of the amount of material supplied.
[0036] In addition, when the rotating shaft 2 301 rotates, it drives the pulley 2 302 to rotate, which in turn drives the pulley 1 603 to rotate via the belt 9. The pulley 1 603 drives the stirring rod 601 and the stirring blade 602 to rotate, thereby stirring the coating in the storage tank 6, preventing the coating from settling and ensuring the uniformity of the coating.
[0037] When it is necessary to adjust the height of the paint rack 1, the threaded rod 502 can be loosened to disengage it from the threaded hole 503, and then the telescopic rod 501 can be pushed to slide along the inner wall of the hand handle 5 to adjust the height of the paint rack 1. After adjustment, the threaded rod 502 can be threaded into the corresponding threaded hole 503 to lock the position of the telescopic rod 501 and ensure stability during the painting process.
[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A semi-automatic wall roller painting device, comprising: A paint rack (1) is characterized in that: a paint roller (2) is rotatably connected to the inner wall of the paint rack (1), a leveling roller (3) is rotatably connected to the inner wall of the paint rack (1) and located on one side of the paint roller (2), a feeding assembly (4) is provided on one side of the paint rack (1), a hand handle (5) is provided at the lower end of the paint rack (1), and a storage box (6) is fixedly connected to one side of the paint rack (1). The feeding assembly (4) includes two supports (401) fixedly connected to the upper end of the paint rack (1). The upper ends of the two supports (401) are fixedly connected to a conveying pipe (402). Multiple discharge pipes (403) are fixedly connected to the outer side wall of the conveying pipe (402), and the multiple discharge pipes (403) are distributed at equal intervals. A feeding box (404) is fixedly connected to one side of the paint rack (1). A piston plate (405) is slidably connected to the inner wall of the feeding box (404). A slide rod (406) is fixedly connected to one side of the piston plate (405). An inlet (407) and an outlet (408) are fixedly connected to one side of the feeding box (404). The inlet (407) is connected to the conveying pipe (402) through a hose.
2. The semi-automatic wall roller coating device according to claim 1, characterized in that: One-way valves are installed on the outer walls of the feed inlet (407) and the discharge outlet (408). The feed inlet (407) is connected to the storage tank (6) via a hose.
3. The semi-automatic wall roller coating device according to claim 1, characterized in that: The feeding assembly (4) also includes a turntable (41), a groove (42) is provided on one side of the turntable (41), a screw (43) is rotatably connected to the inner wall of the groove (42), a rotating rod (44) is rotatably connected to the outer wall of the turntable (41), the rotating rod (44) passes through one side of the groove (42) and is fixedly connected to the screw (43), a threaded sleeve (45) is threadedly connected to the outer wall of the screw (43), a connecting rod (46) is rotatably connected to one side of the threaded sleeve (45), and a sliding rod (406) passes through one end of the feeding box (404) and is rotatably connected to the connecting rod (46).
4. The semi-automatic wall roller coating device according to claim 1, characterized in that: The inner wall of the storage box (6) is rotatably connected to a stirring rod (601), and the outer wall of the stirring rod (601) is fixedly connected to a stirring blade (602). The outer wall of the stirring rod (601) that passes through the storage box (6) and the paint rack (1) is fixedly connected to a pulley (603).
5. A semi-automatic wall roller coating device according to claim 1, characterized in that: The two ends of the paint roller (2) and the leveling roller (3) are respectively fixedly connected to a rotating shaft one (201) and a rotating shaft two (301). A housing (7) is fixedly connected to one side of the paint rack (1). Four gears (8) are rotatably connected to the inner wall of the housing (7), and all four gears (8) are meshed. The gear (8) on the left side is fixedly connected to the rotating shaft two (301). The rotating shaft two (301) passes through one end of the housing (7) and is fixedly connected to the turntable (41). The gear (8) on the right side is fixedly connected to the rotating shaft one (201).
6. A semi-automatic wall roller coating device according to claim 5, characterized in that: A pulley two (302) is fixedly connected to the outer wall of the end of the shaft two (301) away from the gear (8), and a belt (9) is installed between the pulley two (302) and the pulley one (603).
7. A semi-automatic wall roller coating device according to claim 1, characterized in that: The upper inner wall of the handheld rod (5) is slidably connected to a telescopic rod (501), and the outer wall of the handheld rod (5) is threadedly connected to a threaded rod (502). The outer wall of the telescopic rod (501) is provided with multiple threaded holes (503) at equal intervals. The threaded rod (502) passes through the telescopic rod (501) and is threadedly connected to the inner wall of the threaded hole (503). The upper end of the telescopic rod (501) is fixedly connected to the paint rack (1).
8. A semi-automatic wall roller coating device according to claim 1, characterized in that: The leveling roller (3) is located on one side of the coating roller (2) and abuts against each other, and the multiple discharge pipes (403) are located at the upper end of the leveling roller (3).