Building outer wall brushing device capable of achieving uniform brushing

Abstract

The utility model relates to the technical field of building construction, and discloses a building outer wall brushing device with uniform brushing, which comprises a support shaft and a brush cylinder I rotationally connected to the outer surface of the support shaft, a brush cylinder II is attached to the side surface of the brush cylinder I, a fixed shaft is inserted in the center of the interior of the brush cylinder II, and the fixed shaft is fixedly connected with the support shaft. A positioning bolt is installed on the outer surface of the fixing shaft in a threaded mode. When a right-angle wall surface is painted, the first fixing column can drive the second brush cylinder to rotate to a proper angle by pulling the pull ring on the end face of the flexible steel wire rope, the toothed plate and the toothed ring are meshed at a fixed angle after loosening, bristles of the two brush cylinders are tightly attached by means of the first spring, one-time forming painting of a right-angle area is achieved, and construction efficiency is improved; and meanwhile, through the elastic effect of the first spring, the surfaces of the first brush cylinder and the second brush cylinder can abut against each other tightly, when a plane or angle wall is painted, uneven painting at the center line position is avoided, and the consistency and flatness of a wall coating are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically to a device for applying even coating to building exterior walls. Background Technology

[0002] The roller brush of an exterior wall painting device is a core component used for exterior wall coating construction. It is usually composed of a roller core, bristles (or sponge material), support shaft, etc. Its working principle is to make the paint adhere evenly to the wall surface by the rolling of the roller, avoiding problems such as brush marks and uneven thickness that occur when painting by hand. The bristles of the roller brush are made of various materials, commonly including synthetic fibers (such as nylon), wool or sponge. Different materials are suitable for different types of paint (such as latex paint, oil paint, etc.).

[0003] A search revealed that utility model patent CN220521868U discloses a roller brush for construction engineering, comprising a fixed cylinder, a first insertion hole on one side surface of the fixed cylinder, a pin installed on the inner side surface of the first insertion hole, a limit cover installed on one side surface of the pin, a third insertion hole on the inner side surface of the fixed cylinder, a fixed rod installed on the inner side surface of the fixed cylinder, a second insertion hole on one side surface of the fixed rod, and a first shock-absorbing pad installed on the bottom side surface of the fixed rod.

[0004] Traditional roller brushes in current prior art and patent documents mostly adopt a single-brush tube structure. This design has significant limitations when working on corners. Its operation mode is only suitable for parallel brushing on a single plane. When facing a 90-degree corner area formed by the intersection of two walls, it is necessary to first brush along one wall to the edge, and then turn to the other wall to repeat the operation. A single corner treatment requires at least two independent operations. Compared with the one-time brushing method, the construction efficiency is directly halved. In the construction scenario of high-rise building exterior walls, repeated brushing not only causes the roller to frequently go back and forth to pick up paint, but also requires the use of equipment such as suspended platforms and scaffolding to adjust the working position multiple times, further lengthening the construction cycle.

[0005] In addition, the physical structure of a single brush tube makes it difficult for its bristles to completely fit right-angle corners. Especially after the bristles wear down, the risk of missed coating at the inside corner of the wall increases significantly. When manually turning the brush, it is difficult to accurately control the roller pressure, which can easily cause paint to accumulate or be applied too thinly, resulting in obvious "joints" on the wall surface, which seriously affects the overall aesthetics of the exterior wall and the quality of the coating. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a building exterior wall coating device for uniform coating, so as to solve the problems existing in the background art.

[0007] The utility model provides the following technical solution: a building exterior wall painting device for uniform coating, comprising a support shaft and a brush cylinder one rotatably connected to the outer surface of the support shaft, a brush cylinder two attached to the side of the brush cylinder one, a fixed shaft inserted into the center of the brush cylinder two, a positioning bolt threaded on the outer surface of the fixed shaft, a positioning ring fixedly sleeved on the outer surface of the support shaft, a slider slidably connected inside the fixed shaft, a connecting rod fixedly connected to the surface of the slider, a spring one movably sleeved on the outer surface of the connecting rod, and a positioning component installed at the connection between the connecting rod and the support shaft.

[0008] Furthermore, the positioning assembly includes a fixed post one fixedly connected to the end face of a fixed shaft. A rotating shaft is rotatably connected inside the fixed post one. A rotating plate is fixedly connected to the surface of the rotating shaft. A toothed ring is fixedly connected to the inner wall of the fixed post one. The toothed ring is movably sleeved on the outer surface of the rotating shaft. A sealing groove is formed inside the rotating plate. A sealing block is slidably connected inside the sealing groove. A toothed plate is fixedly connected to the surface of the sealing block. A fixed post two is fixedly connected to the end face of the rotating plate away from the connecting rod. A sealing cavity communicating with the inside of the sealing groove is formed inside the sealing cavity. A sealing plate is slidably connected inside the sealing cavity. A flexible steel wire rope is fixedly connected to the center of the side of the sealing plate. A spring two is movably installed inside the sealing cavity. The end of the fixed post two away from the rotating plate is fixedly connected to the end face of a support shaft. The end of the flexible steel wire rope away from the sealing plate extends to the outside of the support shaft.

[0009] Furthermore, a groove is provided inside the fixed shaft, and the slider is slidably connected inside the groove. Under normal conditions, the slider slides away from the positioning component due to the elasticity of the spring.

[0010] Furthermore, a square groove is formed on the surface of the first fixed post near the second fixed post, and the surface of the toothed ring is fixedly connected inside the square groove.

[0011] Furthermore, the surface of the toothed plate is engaged with the surface of the toothed ring, and the outer surface of the toothed plate is non-sealed and slidably connected to the interior of the rotating plate.

[0012] Furthermore, under normal conditions, the elasticity of the second spring causes the sealing plate to slide towards the rotating plate, and a ring is fixedly connected to the end of the flexible steel wire rope away from the sealing plate.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model allows for the application of paint to right-angled walls. By pulling the end ring of the flexible steel wire rope, the toothed plate can be disengaged from the toothed ring, allowing the fixing post one to rotate the brush cylinder two freely to a suitable angle, ensuring that the two brush cylinders cover the two walls respectively. After releasing the pull ring, the spring two pushes the sealing plate to reset, and the toothed plate engages with the toothed ring to fix the angle of the brush cylinder two. With the help of the spring one, the bristles of the two brush cylinders are tightly attached, achieving one-time coating of the right-angle area without the need for two separate applications, greatly improving construction efficiency. At the same time, it avoids problems such as missed coating, paint accumulation, or excessive thinness at the corners of the wall with a single brush cylinder, effectively eliminating "joint marks" on the wall surface and ensuring the overall aesthetics and coating quality of the exterior wall.

[0015] 2. In this utility model, through the elastic action of spring one, the slider drives the fixed shaft to approach the support shaft via the connecting rod and positioning component, causing the surfaces of brush cylinder one and brush cylinder two to come into close contact, and the bristles of the two to fit tightly together. When painting on flat or angled walls, it can effectively avoid the problem of uneven painting at the center line position, and ensure the consistency and flatness of the wall coating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of brush cylinder one and brush cylinder two in this utility model;

[0018] Figure 3 This is a schematic diagram showing the connection of the support shaft, positioning component, and connecting rod in this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] The attached diagram is labeled as follows: 1. Support shaft; 2. Brush cylinder one; 3. Brush cylinder two; 4. Positioning ring; 5. Fixed shaft; 6. Positioning bolt; 7. Slide groove; 8. Slider; 9. Connecting rod; 10. Spring one; 11. Positioning assembly; 111. Fixed column one; 112. Rotating shaft; 113. Rotating plate; 114. Gear ring; 115. Sealing groove; 116. Sealing block; 117. Gear plate; 118. Fixed column two; 119. Sealing cavity; 1110. Sealing plate; 1111. Flexible steel wire rope; 1112. Spring two. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0022] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0023] A uniform coating device for building exterior walls includes a support shaft 1 and a brush cylinder 2 rotatably connected to the outer surface of the support shaft 1. A brush cylinder 3 is attached to the side of the brush cylinder 2. A fixed shaft 5 is inserted into the center of the brush cylinder 3. A positioning bolt 6 is threaded on the outer surface of the fixed shaft 5. A positioning ring 4 is fixedly sleeved on the outer surface of the support shaft 1. A slider 8 is slidably connected inside the fixed shaft 5. A connecting rod 9 is fixedly connected to the surface of the slider 8. A spring 10 is movably sleeved on the outer surface of the connecting rod 9. A positioning component 11 is installed at the connection between the connecting rod 9 and the support shaft 1.

[0024] In this implementation scheme, the fitting design of brush tube 12 and brush tube 23, combined with the elastic effect of spring 10, allows the two brush tubes to fit tightly against each other during painting, ensuring that brush tube 12 and brush tube 23 are connected at right angles and the bristles adhere to the wall surface, avoiding uneven painting at corners when using a single brush tube. The positioning ring 4 can restrict the axial position of brush tube 12 and ensure structural stability.

[0025] Specifically, the positioning assembly 11 includes a fixed post 111 fixedly connected to the end face of the fixed shaft 5. A rotating shaft 112 is rotatably connected inside the fixed post 111. A rotating plate 113 is fixedly connected to the surface of the rotating shaft 112. A toothed ring 114 is fixedly connected to the inner wall of the fixed post 111. The toothed ring 114 is movably sleeved on the outer surface of the rotating shaft 112. A sealing groove 115 is formed inside the rotating plate 113. A sealing block 116 is slidably connected inside the sealing groove 115. A toothed plate 117 is fixedly connected to the surface of the sealing block 116. The rotating plate 113 is located away from the connecting rod 9. A fixing post 118 is fixedly connected to the end face of the support shaft 1. The interior of the fixing post 118 is provided with a sealing cavity 119 that communicates with the interior of the sealing groove 115. A sealing plate 1110 is slidably connected inside the sealing cavity 119. A flexible steel wire rope 1111 is fixedly connected to the center of the side of the sealing plate 1110. A spring 1112 is movably installed inside the sealing cavity 119. The end of the fixing post 118 away from the rotating plate 113 is fixedly connected to the end face of the support shaft 1. The end of the flexible steel wire rope 1111 away from the sealing plate 1110 extends to the outside of the support shaft 1.

[0026] In this embodiment, when the end ring of the flexible steel wire rope 1111 is pulled, the sealing plate 1110 can be slid, causing the toothed plate 117 to disengage from the toothed ring 114. This allows the fixing column 111 to drive the brush cylinder 3 to rotate freely to a suitable angle (such as a 90-degree corner of a right-angle wall). After the pull ring is released, the spring 1112 pushes the sealing plate 1110 to reset, and the toothed plate 117 engages with the toothed ring 114, fixing the angle of the brush cylinder 3. This achieves one-time coating at the corner, improving construction efficiency and avoiding missed coating.

[0027] Specifically, the fixed shaft 5 has a groove 7 inside, and the slider 8 is slidably connected inside the groove 7. Under normal conditions, the slider 8 slides away from the positioning component 11 due to the elasticity of the spring 10.

[0028] In this embodiment, spring 10 pushes fixed shaft 5 through slider 8 and connecting rod 9, so that the bristles of brush tube 12 and brush tube 23 always remain in close contact, ensuring that the coating at the center line of the two brush tubes is uniform when painting on flat or angled walls, and avoiding thin coating or missed coating due to bristle separation.

[0029] Specifically, a square groove is provided on the surface of the first fixed post 111 near the second fixed post 118, and the surface of the toothed ring 114 is fixedly connected to the inside of the square groove.

[0030] In this embodiment, the square groove provides installation space for the toothed ring 114, so that the toothed ring 114 is firmly connected to the fixing post 111, ensuring that the angle of the brush cylinder 3 can be reliably fixed when the toothed plate 117 meshes with the toothed ring 114, avoiding angle deviation during rotation, and ensuring the accuracy of corner painting.

[0031] Specifically, the surface of the toothed plate 117 is engaged with the surface of the toothed ring 114, and the outer surface of the toothed plate 117 is non-sealed and slidably connected to the interior of the rotating plate 113.

[0032] In this embodiment, after the brush cylinder 2 3 is adjusted to the target angle, the meshing structure can fix the angle by the engagement of the toothed plate 117 and the toothed ring 114, preventing the brush cylinder 2 3 from rotating due to external force during the painting process, ensuring that the two brush cylinders cover the two planes of the right-angle wall respectively, and achieving one-time painting; the non-sealed sliding design allows the toothed plate 117 to move flexibly, and with the sliding of the sealing block 116 in the sealing groove 115, the smoothness of angle adjustment is guaranteed.

[0033] Specifically, under normal conditions, the elasticity of spring 1112 causes the sealing plate 1110 to slide towards the rotating plate 113, and a ring is fixedly connected to the end of the flexible steel wire rope 1111 away from the sealing plate 1110.

[0034] In this embodiment, spring 1112 pushes the sealing plate 1110 to reset, ensuring that the toothed plate 117 and the toothed ring 114 are always in an engaged state, maintaining the angle of the brush cylinder 3. The ring at the end of the flexible steel wire rope 1111 is easy for the operator to pull manually. By overcoming the elasticity of spring 1112 with external force, the toothed plate 117 is disengaged from the toothed ring 114, thereby realizing the angle adjustment of the brush cylinder 3. The operation is convenient and the structure is reliable.

[0035] The working principle and usage process of this utility model are as follows: During use, when painting a flat wall, the elasticity of spring 10 causes slider 8 to slide towards the support shaft 1 via connecting rod 9 and positioning assembly 11, thus ensuring that the surfaces of brush cylinder 1 2 and brush cylinder 2 3 are tightly pressed together, and the bristles on their surfaces are closely adhered. Therefore, uneven painting at the center line position is avoided during painting. When painting a right-angled wall, pulling the pull ring on the end of flexible steel wire rope 1111 causes it to slide the sealing plate 1110 to the right. At this time, the inside of the sealing groove 115 and the left end of the sealing cavity 119 are under negative pressure. Therefore, sealing block 116 drives toothed plate 117 to slide downwards, causing the surface of toothed plate 117 to detach from the surface of toothed ring 114. At this time, fixing post 111 can rotate freely outside the rotating plate 113. The connecting rod 9 drives the fixed shaft 5 and the second brush tube 3 to rotate. When rotating, a leftward pulling force is applied to the second brush tube 3 to increase the distance between the first brush tube 2 and the second brush tube 3, so that the second brush tube 3 will not be interfered with when rotating. After rotating the second brush tube 3 to a suitable angle, it is enough to ensure that the first brush tube 2 and the second brush tube 3 can completely coat the two walls. Then, stop applying external force to the flexible steel wire rope 1111. Through the elasticity of the second spring 1112, the sealing plate 1110 slides to the left. At this time, the pressure inside the sealing groove 115 increases, and the sealing block 116 drives the toothed plate 117 to mesh and connect to the surface of the toothed ring 114. At this time, the angle of the first fixed column 111 is fixed, and the angle of the second brush tube 3 is fixed. Then, through the elasticity of the first spring 10, the fixed shaft 5 slides towards the support shaft 1, so that the bristles on the surface of the second brush tube 3 are in close contact with the bristles on the surface of the first brush tube 2, ensuring that the right-angled edge can be evenly coated. At this time, the adjustment is completed, and the paint can be directly applied for painting.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A building exterior wall coating device for uniform coating, comprising a support shaft (1) and a brush cylinder (2) rotatably connected to the outer surface of the support shaft (1), characterized in that: Brush cylinder one (2) is attached to the side of brush cylinder two (3), a fixed shaft (5) is inserted into the center of the inside of brush cylinder two (3), a positioning bolt (6) is threaded on the outer surface of the fixed shaft (5), a positioning ring (4) is fixedly sleeved on the outer surface of the support shaft (1), a slider (8) is slidably connected inside the fixed shaft (5), a connecting rod (9) is fixedly connected to the surface of the slider (8), a spring one (10) is movably sleeved on the outer surface of the connecting rod (9), and a positioning component (11) is installed at the connection between the connecting rod (9) and the support shaft (1).

2. The building exterior wall coating device for uniform coating according to claim 1, characterized in that: The positioning assembly (11) includes a fixed post (111) fixedly connected to the end face of the fixed shaft (5). A rotating shaft (112) is rotatably connected inside the fixed post (111). A rotating plate (113) is fixedly connected to the surface of the rotating shaft (112). A toothed ring (114) is fixedly connected to the inner wall of the fixed post (111). The toothed ring (114) is movably sleeved on the outer surface of the rotating shaft (112). A sealing groove (115) is provided inside the rotating plate (113). A sealing block (116) is slidably connected inside the sealing groove (115). A toothed plate (117) is fixedly connected to the surface of the sealing block (116). The rotating plate (113) is located away from the connecting post. A fixed post 2 (118) is fixedly connected to the end face of the rod (9). The fixed post 2 (118) has a sealing cavity (119) that communicates with the inside of the sealing groove (115). A sealing plate (1110) is slidably connected inside the sealing cavity (119). A flexible steel wire rope (1111) is fixedly connected to the center of the side of the sealing plate (1110). A spring 2 (1112) is movably installed inside the sealing cavity (119). One end of the fixed post 2 (118) away from the rotating plate (113) is fixedly connected to the end face of the support shaft (1). One end of the flexible steel wire rope (1111) away from the sealing plate (1110) extends to the outside of the support shaft (1).

3. The building exterior wall coating device for uniform coating according to claim 1, characterized in that: The fixed shaft (5) has a groove (7) inside, and the slider (8) is slidably connected inside the groove (7). Under normal conditions, the slider (8) slides away from the positioning component (11) due to the elasticity of the spring (10).

4. The building exterior wall coating device for uniform coating according to claim 2, characterized in that: The surface of the first fixed post (111) near the second fixed post (118) has a square groove, and the surface of the toothed ring (114) is fixedly connected to the inside of the square groove.

5. The building exterior wall coating device for uniform coating according to claim 2, characterized in that: The surface of the toothed plate (117) is engaged with the surface of the toothed ring (114), and the outer surface of the toothed plate (117) is non-sealed and slidably connected to the interior of the rotating plate (113).

6. The building exterior wall coating device for uniform coating according to claim 2, characterized in that: Under normal conditions, the sealing plate (1110) slides towards the rotating plate (113) due to the elasticity of the second spring (1112). The flexible steel wire rope (1111) is fixedly connected to a ring at the end away from the sealing plate (1110).

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