An infiltration coating device

Abstract

The present invention relates to an infiltration coating device, which comprises a brush head and a brush handle. The brush head includes a bracket and at least two roller brushes arranged in parallel and spaced apart on the bracket. The roller brushes are rotatably connected to the bracket. A fixed pipe with both ends closed is arranged between two adjacent roller brushes. The axial direction of the fixed pipe is parallel to the plane where the axes of at least two roller brushes are located. The fixed pipe is slidably arranged on the bracket and can slide in a direction perpendicular to the plane where the axes of at least two roller brushes are located. A plurality of spray heads capable of communicating with the internal channel of the fixed pipe are arranged on the fixed pipe. The brush handle is fixed to the bracket, and a feeding channel capable of communicating with the internal channel of the fixed pipe is provided inside the brush handle. The infiltration coating device of the present invention combines spraying and roller coating, can spray to places such as gaps that cannot be reached by the roller brushes during roller coating, and can make the sprayed coating infiltrate into the concrete more fully, ensuring the coating effect.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge protection, and particularly to an infiltration coating device, which is particularly suitable for the infiltration coating of waterproof and anticorrosive materials for concrete bridges. Background Art

[0002] Due to the influence of adverse climatic conditions, roads in northern China are often covered with snow and ice in winter. During the process of ensuring traffic, maintenance departments use a large amount of chemical substances such as deicing salts and snow melting agents. Chemical substances such as sodium chloride, calcium chloride, magnesium chloride and their additives as snow melting agents directly erode and damage the road surface and bridge body. The concrete structure itself has pores and is dry and water-absorbent. Especially, the concrete structure with micro-cracks has stronger water-absorbing ability. The water body dissolved with harmful substances flows through the pores and cracks under the stress of freeze-thaw cycles, and the continuous damage to concrete components is long-term and deep-seated. The chemical corrosion components in deicing salts and snow melting agents migrate and penetrate into the concrete, and act together with water to produce salt freezing and salt corrosion, which not only damage the concrete surface layer, but also gradually develop and expand into the concrete interior, resulting in large-area serious erosion. Therefore, the protection of concrete bridges is urgent.

[0003] In order to prevent the freeze-thaw salt corrosion of concrete bridges. At present, the method of coating anticorrosive materials on the concrete surface is usually adopted to delay the service life of concrete. The currently commonly used coating method is manual coating with a roller brush. The existing roller brush is only an infiltration roller brush, and the material is coated on the surface by relying on the extrusion of the roller brush. The coating has no pressure, especially the gap part cannot be infiltrated in place.

[0004] Therefore, based on the experience and practice of being engaged in the relevant industry for many years, the inventor of the present invention proposes an infiltration coating device to overcome the defects of the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide an infiltration coating device, which adopts a combination of spraying and rolling coating, can spray to places such as gaps that cannot be reached by the roller brush rolling coating, and can make the sprayed coating infiltrate into the concrete more fully, ensuring the coating effect.

[0006] The purpose of the present invention is achieved as follows. An infiltration coating device includes:

[0007] A brush head, which includes a bracket and at least two roller brushes arranged in parallel and spaced apart on the bracket. The roller brushes are rotatably connected to the bracket; a fixed pipe with both ends closed is arranged between two adjacent roller brushes. The axial direction of the fixed pipe is parallel to the plane where the axes of at least two roller brushes are located; the fixed pipe is slidably arranged on the bracket and can slide in a direction perpendicular to the plane where the axes of at least two roller brushes are located. A plurality of nozzles that can communicate with the internal channel of the fixed pipe are arranged on the fixed pipe;

[0008] and a brush handle, the brush handle being fixed to the support, and the interior of the brush handle having a feed channel capable of communicating with the internal channel of the fixed tube.

[0009] In a preferred embodiment of the present invention, the position of each nozzle in the circumferential direction of the fixed tube can be adjusted.

[0010] In a preferred embodiment of the present invention, the fixed tube includes a plurality of first fixed tubes arranged at intervals in sequence. A second fixed tube is rotatably inserted between two adjacent first fixed tubes. The second fixed tube is connected to the first fixed tube by a first positioning screw, and the nozzle is detachably fixed to the second fixed tube.

[0011] In a preferred embodiment of the present invention, the inner diameters of both ends of the second fixed tube are the same as the inner diameter of the first fixed tube. The middle part of the second fixed tube protrudes outward to form a stepped tube with an enlarged inner diameter. A fixing hole is provided on one side wall of the stepped tube; a slider is radially slidably embedded in the stepped tube, and a spring is clamped between the inner wall on the other side of the stepped tube and one side wall of the slider; a first axial channel and a second axial channel penetrating through both ends of the slider are provided in the slider, and the second axial channel is arranged close to the fixing hole; a lateral hole is provided on the other side wall of the slider and at a position opposite to the fixing hole, and the lateral hole communicates with the second axial channel; the inner end of the nozzle can pass through the fixing hole and the lateral hole and be inserted into the second axial channel, and the spray cavity of the nozzle can communicate with the second axial channel.

[0012] In a preferred embodiment of the present invention, the slider is of a cylindrical structure, the cross-section of the first axial channel is circular, the cross-section of the second axial channel is crescent-shaped, and the inner end face of the nozzle is arc-shaped; the spray cavity of the nozzle is composed of a transverse channel and a longitudinal channel that are perpendicularly connected. The transverse channel penetrates both sides of the nozzle and the cross-section of the transverse channel is crescent-shaped; one end of the longitudinal channel is connected to the transverse channel, and the other end penetrates the outer end face of the nozzle.

[0013] In a preferred embodiment of the present invention, there are two roller brushes in total.

[0014] In a preferred embodiment of the present invention, the support includes a support plate and two mounting plates respectively located at both ends of the support plate. Each mounting plate includes a horizontal plate and a vertical plate that are perpendicularly arranged; the horizontal plate and the vertical plate are in the same horizontal plane and perpendicular to the support plate. The horizontal plate and the vertical plate form a T-shaped structure, and the vertical plate is connected to the support plate; the roller brush is rotatably connected to the horizontal plate, the fixed tube is slidably arranged on the vertical plate, and the brush handle is fixed to the support plate.

[0015] In a preferred embodiment of the present invention, a chute is provided on the vertical plate along its length direction. The end of the fixed tube is slidably inserted into the chute, and a first fastening screw is inserted into the chute and fixed to the end of the fixed tube.

[0016] In a preferred embodiment of the present invention, the distance between the roller brush and the fixed pipe can be adjusted.

[0017] In a preferred embodiment of the present invention, two short plates are telescopically and slidably inserted at both ends of the cross plate, and the cross plate and the short plates are connected by second positioning screws; a connecting shaft is fixedly connected between the two short plates disposed opposite to each other in the two mounting plates, and the roller brush is sleeved on the connecting shaft.

[0018] In a preferred embodiment of the present invention, the infiltration coating device further includes a paint bucket, a feeding pump, and a feeding pipe fixed on the bracket. One end of the feeding pump is connected to the paint bucket through a pipeline, and the other end of the feeding pump is connected to one end of the brush handle through a connecting pipe; the other end of the brush handle is detachably and fixedly connected to one end of the feeding pipe, both the connecting pipe and the feeding pipe can be communicated with the feeding channel, and the other end of the feeding pipe is fixed to the fixed pipe and communicated with the internal channel of the fixed pipe.

[0019] In a preferred embodiment of the present invention, the brush handle is a telescopic cylindrical structure.

[0020] In a preferred embodiment of the present invention, a switch capable of controlling the on-off of the feeding channel is fixed on the brush handle.

[0021] In a preferred embodiment of the present invention, a semi-circular protective cover is sleeved at intervals outside each roller brush, the semi-circular protective cover is fixedly connected to the bracket, a baffle extending along its axial direction is fixed on the inner wall of the semi-circular protective cover, and the inner end of the baffle is embedded in the outer edge of the roller brush; the infiltration coating device further includes a return pipe and a suction pump, one end of the return pipe is connected to the semi-circular protective cover and communicated with the interval area between the semi-circular protective cover and the roller brush, and the other end of the return pipe is connected to the paint bucket through the suction pump.

[0022] As described above, in the infiltration coating device of the present invention, the coating is carried out by the cooperation of the spray head and the roller brush, adopting the combination of spraying and rolling. Spraying is carried out during the moving rolling. Since the paint sprayed by using the spray head can have a certain pressure, it can be sprayed to places such as gaps that the roller brush cannot spray to, ensuring that each position can be infiltrated in place. At the same time, due to the rolling effect of the roller brush, the paint can stay on the bridge surface for a longer time, the bridge surface can absorb more paint, so that the sprayed paint can be more fully infiltrated into the concrete, and the bridge surface can be evenly infiltrated, thereby ensuring the coating effect and prolonging the corrosion time of the bridge concrete, so as to realize the protection of the bridge concrete. In addition, the fixed pipe can slide on the bracket, which is more convenient to adjust the distance between the spray head and the concrete surface to improve the coating effect. Moreover, the roller brush can also absorb the excess paint, prevent the excess paint from flowing and polluting, save materials, and is convenient for recycling. The whole device has a simple structure and is easy to operate, and can realize fast and convenient coating. Description of the Drawings

[0023] The following attached drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention. Among them:

[0024] Figure 1 : is the structural schematic diagram of the infiltration coating device provided by the present invention Figure 1 .

[0025] Figure 2 : is Figure 1 the partial enlarged view of part A in

[0026] Figure 3 : is the side view of the infiltration coating device provided by the present invention

[0027] Figure 4 : is Figure 3 the partial enlarged view of part B in

[0028] Figure 5 : is the structural schematic diagram of the infiltration coating device provided by the present invention Figure 2 .

[0029] Figure 6 : is Figure 5 the partial enlarged view of part C in

[0030] Figure 7 : is the cross-sectional view of the second fixed pipe provided by the present invention

[0031] Figure 8 : is the cross-sectional view of the slider provided by the present invention;

[0032] Figure 9 : is the cross-sectional view of the slider provided by the present invention

[0033] Figure 10 : is the cross-section of the nozzle provided by the present invention Figure 1 ;

[0034] Figure 11 : is the cross-section of the nozzle provided by the present invention Figure 2 .

[0035] Explanation of the reference numerals in the drawings:

[0036] 1. Bracket; 11. Support plate; 12. Mounting plate; 121. Horizontal plate; 122. Vertical plate; 1221. Chute; 123. First fastening screw; 124. Short plate; 125. Second positioning screw; 13. Connecting shaft;

[0037] 2. Rotary brush;

[0038] 3. Fixed pipe; 31. First fixed pipe; 32. Second fixed pipe; 321. Step pipe; 3211. Fixed hole; 33. First positioning screw; 34. Slide block; 341. First axial channel; 342. Second axial channel; 343. Lateral hole; 35. Spring

[0039] 4. Nozzle; 41. Transverse channel; 42. Longitudinal channel

[0040] 5. Brush handle; 51. Second fastening screw; 52. Switch

[0041] 6. Feed pipe

[0042] 7. Connecting pipe

[0043] 8. Semi-circular shield; 81. Baffle

[0044] 9. Return pipe Detailed implementation manner

[0045] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific implementation manner of the present invention will now be described with reference to the accompanying drawings

[0046] As Figures 1 to 11 shown, this embodiment provides an infiltration coating device, including a brush head and a brush handle 5

[0047] Among them, the brush head includes a bracket 1 and at least two roller brushes 2 arranged in parallel and spaced on the bracket 1. The roller brushes 2 are rotatably connected to the bracket 1. A fixed pipe 3 with both ends closed is arranged between two adjacent roller brushes 2. The axial direction of the fixed pipe 3 is parallel to the plane where the axes of at least two roller brushes 2 are located. The fixed pipe 3 is slidably arranged on the bracket 1 and can slide in a direction perpendicular to the plane where the axes of at least two roller brushes 2 are located. The fixed pipe 3 is provided with a plurality of nozzles 4 that can communicate with the internal channel of the fixed pipe 3. The brush handle 5 is fixed to the bracket 1, and the interior of the brush handle 5 has a feeding channel that can communicate with the internal channel of the fixed pipe 3

[0048] During use, first connect the brush handle 5 to the paint bucket so that its feeding channel can communicate with the paint bucket. At the same time, the fixed pipe 3 can be slid according to the on-site situation to adjust the distance between the nozzle 4 and the concrete surface. When coating, the nozzle 4 is used to spray the bridge surface, and the roller brushes 2 on both sides of the nozzle 4 can evenly coat the sprayed paint, and the nozzle 4 can spray into the gaps that the roller brushes 2 cannot coat

[0049] Therefore, in the wetting coating device of this embodiment, the coating is carried out by the cooperation of the spray head 4 and the roller brush 2. By adopting the combined method of spraying and rolling, spraying is carried out during the moving rolling. Since the sprayed coating can have a certain pressure when using the spray head 4 for spraying, it can be sprayed to places such as gaps that the roller brush 2 cannot spray to, ensuring that each position can be wetted in place. At the same time, due to the rolling effect of the roller brush 2, the coating can stay on the bridge surface for a longer time, the bridge surface can absorb more coating, so that the sprayed coating can be more fully wetted into the concrete, and the bridge surface can be evenly wetted, thus ensuring the coating effect and prolonging the corrosion time of the bridge concrete, so as to realize the protection of the bridge concrete. In addition, the fixed pipe 3 can slide on the bracket 1, which is more convenient for adjusting the distance between the spray head 4 and the concrete surface to improve the coating effect. Moreover, the roller brush 2 can also absorb the excess coating, prevent the excess coating from flowing and polluting, save materials and facilitate recycling. The whole device has a simple structure and is easy to operate, and can realize fast and convenient coating.

[0050] It should be noted that the wetting coating device in this embodiment can not only be used for coating the bridge surface, but also for coating operations on the surfaces of other objects, and can be wetted in place and ensure the coating effect.

[0051] In a specific implementation manner, in order to be more flexible in use, the position of each spray head 4 in the circumferential direction of the fixed pipe 3 can be adjusted, so as to adaptively adjust the angle of the spray head 4 according to the actual situation and obtain a better coating effect.

[0052] Specifically, as Figure 5 and Figure 6 shown, for the convenience of processing and installation, the fixed pipe 3 includes a plurality of first fixed pipes 31 arranged at intervals in sequence. A second fixed pipe 32 is rotatably inserted between two adjacent first fixed pipes 31. The second fixed pipe 32 is connected to the first fixed pipe 31 through a first positioning screw 33. The spray head 4 is detachably fixed on the second fixed pipe 32. Among them, the ends of the two first fixed pipes 31 at both ends far from the second fixed pipe 32 are closed to ensure that both ends of the entire fixed pipe 3 are closed.

[0053] In this way, both ends of the second fixed pipe 32 are respectively inserted into two adjacent first fixed pipes 31. Rotate the second fixed pipe 32 to a suitable position and fix it with the first positioning screw 33, then the purpose of adjusting the angle of the spray head 4 can be achieved, which is simple and convenient.

[0054] In practical applications, in order to facilitate replacing different spray heads 4 or adjusting the number of spray heads 4 according to needs, as Figures 5 to 11As shown, the inner diameters of both ends of the second fixed tube 32 are the same as those of the first fixed tube 31. The middle part of the second fixed tube 32 protrudes outward to form a stepped tube 321 with an enlarged inner diameter. A fixing hole 3211 is formed in one side wall of the stepped tube 321.

[0055] A slider 34 is radially slidably embedded in the stepped tube 321. A spring 35 is clamped between the inner wall on the other side of the stepped tube 321 and one side wall of the slider 34. A first axial channel 341 and a second axial channel 342 passing through both ends of the slider 34 are formed in the slider 34. The second axial channel 342 is arranged close to the fixing hole 3211. A lateral hole 343 is formed in the other side wall of the slider 34 at a position opposite to the fixing hole 3211. The lateral hole 343 is communicated with the second axial channel 342. The inner end of the nozzle 4 can pass through the fixing hole 3211 and the lateral hole 343 and be inserted into the second axial channel 342. The spray cavity of the nozzle 4 can be communicated with the second axial channel 342.

[0056] Among them, the internal channels of the first fixed tube 31 and the second fixed tube 32 constitute the internal channel of the entire fixed tube 3. By controlling the sizes of the first axial channel 341 and the second axial channel 342 in the slider 34, it can be ensured that the first axial channel 341 is always communicated with the internal channel of the fixed tube 3, while the second axial channel 342 can only be communicated with the internal channel of the fixed tube 3 after the nozzle 4 is installed. When the nozzle 4 is not installed, the second axial channel 342 is communicated with the outside and is not communicated with the internal channel of the fixed tube 3.

[0057] More specifically, when the nozzle 4 is not installed or the nozzle 4 is removed, under the elastic force of the spring 35, the slider 34 is pushed to move radially in the stepped tube 321 toward the direction close to the fixing hole 3211. The other side wall of the slider 34 is closely attached to one side inner wall of the stepped tube 321. At this time, only the first axial channel 341 in the slider 34 is communicated with the internal channel of the fixed tube 3, and the second axial channel 342 is not communicated with the internal channel of the fixed tube 3, so as to ensure that the paint in the fixed tube 3 will not leak to the outside when the nozzle 4 is not installed here.

[0058] When installing the nozzle 4, insert the inner end of the nozzle 4 through the fixing hole 3211 and the lateral hole 343 and then insert it into the second axial channel 342. The side wall of the nozzle 4 is in interference fit with the fixing hole 3211 to ensure that the nozzle 4 will not fall off after being inserted. The cooperation of the second axial channel 342 and the lateral hole 343 can further limit the nozzle 4 and ensure the stability of the nozzle 4. During the installation process of the nozzle 4, the nozzle 4 will push the slider 34 to move radially along the stepped pipe 321 away from the fixing hole 3211, so that the slider 34 compresses the spring 35. At this time, the second axial channel 342 will communicate with the internal channel of the fixed pipe 3, and the coating can enter the spray cavity of the nozzle 4 through the second axial channel 342 and then be sprayed out from the nozzle 4.

[0059] Therefore, through the cooperation of the slider 34 and the spring 35 in the second fixed pipe 32, the coating can be smoothly sprayed out from the nozzle 4 after the nozzle 4 is installed. When the nozzle 4 is not installed, the fixing hole 3211 of the second fixed pipe 32 can be blocked by the slider 34 to ensure that the coating will not leak. In this way, the number of nozzles 4 can be appropriately increased or decreased as needed, and different nozzles 4 can also be replaced. During the replacement or use process, no coating leakage will occur, and the installation and disassembly are convenient.

[0060] Furthermore, for the convenience of processing and assembly, as Figures 8 to 11 shown, the slider 34 is of a cylindrical structure, the cross-section of the first axial channel 341 is circular, the cross-section of the second axial channel 342 is crescent-shaped, and the inner end face of the nozzle 4 is an arc surface to match the shape of the second axial channel 342.

[0061] The spray cavity of the nozzle 4 is composed of a transverse channel 41 and a longitudinal channel 42 that are perpendicularly connected. The transverse channel 41 runs through both sides of the nozzle 4 and the cross-section of the transverse channel 41 is crescent-shaped, and it can communicate with the second axial channel 342 after the inner end of the nozzle 4 is inserted into the second axial channel 342; one end of the longitudinal channel 42 is connected to the transverse channel 41, and the other end runs through the outer end face of the nozzle 4.

[0062] In this way, after the nozzle 4 is installed, the inner end face of the nozzle 4 can fit with the inner wall of the second axial channel 342. At the same time, the transverse channel 41 of the nozzle 4 is just aligned and communicated with the second axial channel 342. The coating enters the transverse channel 41 of the nozzle 4 after passing through the second axial channel 342, and then is sprayed out through the longitudinal channel 42 of the nozzle 4.

[0063] In actual use, if the above-mentioned slider 34 and spring 35 are not provided, the above-mentioned fixing hole 3211 can be a threaded hole. When installing the nozzle 4, the side wall of the nozzle 4 can be threadedly fixed to the threaded hole; when the nozzle 4 is not installed, a plug can be fixed at the threaded hole to prevent paint leakage. Of course, the connection between the nozzle 4 and the fixed pipe 3 can also be in other ways, and this embodiment is only for illustrative purposes.

[0064] Furthermore, to reduce the volume and weight of the entire device and achieve better use effects, as Figure 1 shown, there are two roller brushes 2 in total to make the operation more convenient.

[0065] For the case where there are two roller brushes 2 in total, for the convenience of processing and installation, as Figures 1 to 3 shown, the bracket 1 includes a support plate 11 and two mounting plates 12 respectively located at both ends of the support plate 11. Each mounting plate 12 includes a horizontal plate 121 and a vertical plate 122 which are perpendicularly arranged. The horizontal plate 121 and the vertical plate 122 are in the same horizontal plane and perpendicular to the support plate 11. The horizontal plate 121 and the vertical plate 122 form a T-shaped structure, and the vertical plate 122 is connected to the support plate 11. The roller brush 2 is rotatably connected to the horizontal plate 121, the fixed pipe 3 is slidably arranged on the vertical plate 122, and the brush handle 5 is fixed to the support plate 11.

[0066] Specifically, to facilitate the adjustment of the position of the fixed pipe 3, a chute 1221 is provided on the vertical plate 122 along its length direction. The end of the fixed pipe 3 is slidably inserted into the chute 1221, and a first fastening screw 123 is inserted into the chute 1221. The first fastening screw 123 is fixed to the end of the fixed pipe 3, and thus it is possible to conveniently adjust the distance between the nozzle 4 on the fixed pipe 3 and the concrete surface.

[0067] During the specific use process, to facilitate the adjustment of the distance between the roller brush 2 and the nozzle 4 on the fixed pipe 3, the distance between the roller brush 2 and the fixed pipe 3 can be adjusted.

[0068] Specifically, for the convenience of adjustment, two short plates 124 are slidably inserted into both ends of the horizontal plate 121 in a telescopic manner. The horizontal plate 121 and the short plates 124 are connected by second positioning screws 125. A connecting shaft 13 is fixedly connected between the two short plates 124 which are oppositely arranged in the two mounting plates 12 (that is, a connecting shaft 13 is fixedly connected between the two short plates 124 which are symmetrically arranged left and right in the two mounting plates 12). The roller brush 2 is sleeved on the connecting shaft 13. In this way, by adjusting the telescopic length of the short plates 124 relative to the horizontal plate 121, the distance between the fixed pipe 3 and the roller brush 2 can be adjusted, which is simple and convenient.

[0069] Therefore, in this embodiment, the fixed pipe 3 can slide on the vertical plate 122, so that the distance between the nozzle 4 and the concrete surface can be adjusted; the angle of the nozzle 4 can be adjusted, and different nozzles 4 can be installed as needed; the distance between the roller brush 2 and the nozzle 4 can also be adjusted, so that the positions of the nozzle 4 and the roller brush 2 can be adjusted accordingly according to different construction site conditions to achieve the best coating effect.

[0070] Furthermore, to facilitate the smooth delivery of the coating material into the fixed pipe 3, the wetting coating device further includes a coating bucket, a feeding pump, and a feeding pipe 6 fixed to the bracket 1. One end of the feeding pump is connected to the coating bucket through a pipeline, and the other end of the feeding pump is connected to one end of the brush handle 5 through a connecting pipe 7. The other end of the brush handle 5 is detachably and fixedly connected to one end of the feeding pipe 6. Both the connecting pipe 7 and the feeding pipe 6 can communicate with the feeding channel, and the other end of the feeding pipe 6 is fixed to the fixed pipe 3 and communicates with the internal channel of the fixed pipe 3.

[0071] During use, by means of the pumping action of the feeding pump, the coating material can be pumped into the feeding channel of the brush handle 5, then enter the fixed pipe 3 through the feeding pipe 6 to supply the nozzle 4, and finally be sprayed out through each nozzle 4.

[0072] Among them, mounting holes are provided on the support plate 11 of the bracket 1. The other end of the feeding pipe 6 is inserted and fixed in the mounting holes, and after passing through the mounting holes, it is fixed to the fixed pipe 3 (specifically fixed to the first fixed pipe 31). To ensure the structural stability and facilitate the sliding of the fixed pipe 3, the part of the feeding pipe 6 from one end to the part installed in the mounting holes is a rigid pipe, and the part from the mounting holes to the part connected to the fixed pipe 3 is a flexible pipe. Generally, one end of the feeding pipe 6 is inserted into the other end of the brush handle 5 and fixed by a second fastening screw 51 to achieve the detachable fixation between the brush handle 5 and the feeding pipe 6. When the construction is completed, the brush handle 5 can be conveniently disassembled, which is more convenient for cleaning.

[0073] In practical applications, to facilitate the adjustment of the length of the brush handle 5 according to the construction conditions, the brush handle 5 is a telescopic cylinder structure. How to achieve the telescopic function of the telescopic cylinder structure is the prior art and will not be elaborated here.

[0074] For the convenience of operation, as Figure 1 shown, a switch 52 capable of controlling the on-off of the feeding channel is fixed on the brush handle 5.

[0075] Furthermore, for the convenience of recycling the coating material, as Figures 1 to 4As shown, a semi-circular shield 8 is sleeved outside each rolling brush 2 at intervals. The semi-circular shield 8 is fixedly connected to the support 1. A baffle 81 extending along its axial direction is fixed on the inner wall of the semi-circular shield 8, and the inner end of the baffle 81 is embedded in the outer edge of the rolling brush 2. The infiltration coating device further includes a return pipe 9 and a suction pump. One end of the return pipe 9 is connected to the semi-circular shield 8 and communicates with the interval area between the semi-circular shield 8 and the rolling brush 2. The other end of the return pipe 9 is connected to the above-mentioned paint bucket through the suction pump.

[0076] Among them, the semi-circular shield 8 is coaxially arranged with the rolling brush 2, and the semi-circular shield 8 is fixedly connected to the above-mentioned connecting shaft 13. Generally, the baffle 81 is arranged near the port of the return pipe 9 to facilitate the smooth flow of the extruded paint into the return pipe 9 and play a certain guiding role.

[0077] In this way, since the inner end of the baffle 81 is inserted into the outer edge of the rolling brush 2, a certain extrusion force can be generated on the rolling brush 2. When coating, the rolling brush 2 can absorb the excess paint. During the rotation of the rolling brush 2, the baffle 81 will be able to extrude the excess paint on the rolling brush 2. The extruded paint will flow back to the paint bucket from the return pipe 9 through the suction effect of the suction pump, playing a role in collecting and recycling the excess paint on the rolling brush 2 and preventing the pollution of the site by the excess paint. At the same time, the presence of the semi-circular shield 8 can also play a certain protective role when the nozzle 4 sprays, preventing the paint from splashing to the outside and causing pollution.

[0078] In summary, in the infiltration coating device of this embodiment, the brush handle 5 and the brush head are connected. One end of the brush handle 5 is connected to the paint bucket, and the brush head is placed at the position on the bridge that needs to be coated. Press the switch 52 on the brush handle 5, the nozzle 4 starts to spray, and push the brush handle 5, so that the rolling brush 2 on the brush head can evenly coat the sprayed paint on the bridge surface. The nozzle 4 can spray the inside of the gap, so that the inside of the gap can also be infiltrated and protected; the rolling brush 2 can ensure sufficient infiltration and is conducive to the absorption of concrete. The rolling brush 2 can also absorb the excess paint sprayed out, avoiding too much paint causing environmental pollution on the concrete surface and reducing the waste of paint, so that the concrete surface can obtain the best infiltration effect and extend the protection period.

[0079] At the same time, the brush handle 5 can be telescopic, and the switch 52 is located on the brush handle 5 and is used for use and control. The distance between the rolling brush 2 and the nozzle 4 is adjustable. The nozzle 4 can slide on the vertical plate 122. Therefore, the distance between the nozzle 4 and the concrete surface is adjustable. And the nozzle 4 can rotate on the fixed pipe 3, and different nozzles 4 can also be installed on the fixed pipe 3, so as to make the coating effect optimal.

[0080] In addition, the semi-circular shield 8 outside the rotary brush 2 can prevent paint from splashing. Moreover, the baffle 81 arranged inside the semi-circular shield 8 can squeeze the brush cloth on the rotary brush 2, scrape off the relatively large amount of paint adsorbed thereon, and recycle it through the return pipe 9, avoiding paint dripping in the construction environment and causing environmental pollution, and being able to save paint and ensure the smooth progress of coating.

[0081] The above are only illustrative specific embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An infiltration coating device, characterized in that, Comprising: A brush head, the brush head including a bracket and at least two roller brushes arranged in parallel and spaced apart on the bracket, the roller brushes being rotatably connected to the bracket; A fixed tube with both ends closed is provided between two adjacent roller brushes, the axis direction of the fixed tube being parallel to the plane where the axes of at least two roller brushes are located; the fixed tube is slidably arranged on the bracket and can slide in a direction perpendicular to the plane where the axes of at least two roller brushes are located, and a plurality of nozzles capable of communicating with the internal channel of the fixed tube are provided on the fixed tube; And a brush handle, the brush handle being fixed to the bracket, and the interior of the brush handle having a feeding channel capable of communicating with the internal channel of the fixed tube; Wherein, the position of each nozzle in the circumferential direction of the fixed tube can be adjusted; the fixed tube includes a plurality of first fixed tubes arranged sequentially and spaced apart, and a second fixed tube is rotatably inserted between two adjacent first fixed tubes, the second fixed tube being connected to the first fixed tube by a first positioning screw, and the nozzle is detachably fixed on the second fixed tube; The inner diameters of both ends of the second fixed tube are the same as the inner diameter of the first fixed tube, a stepped tube with an enlarged inner diameter is convexly provided in the middle of the second fixed tube, and a fixing hole is opened on one side wall of the stepped tube; a slider is radially slidably embedded in the stepped tube, and a spring is clamped between the inner wall on the other side of the stepped tube and one side wall of the slider; a first axial channel and a second axial channel penetrating through both ends of the slider are opened in the slider, and the second axial channel is arranged close to the fixing hole; a lateral hole is opened on the other side wall of the slider and at a position opposite to the fixing hole, and the lateral hole is communicated with the second axial channel; the inner end of the nozzle can pass through the fixing hole and the lateral hole and be inserted into the second axial channel, and the spray cavity of the nozzle can be communicated with the second axial channel; The infiltration coating device further includes a paint bucket, a feeding pump, and a feeding pipe fixed on the bracket, one end of the feeding pump is connected to the paint bucket through a pipeline, and the other end of the feeding pump is connected to one end of the brush handle through a connecting pipe; the other end of the brush handle is detachably and fixedly connected to one end of the feeding pipe, both the connecting pipe and the feeding pipe can be communicated with the feeding channel, and the other end of the feeding pipe is fixed to the fixed tube and is communicated with the internal channel of the fixed tube.

2. The infiltration coating device according to claim 1, wherein The slider is of a cylindrical structure, the cross-section of the first axial channel is circular, the cross-section of the second axial channel is crescent-shaped, and the inner end face of the nozzle is an arc surface; The spray cavity of the nozzle is composed of a transverse channel and a longitudinal channel that are perpendicularly communicated, the transverse channel penetrates through both sides of the nozzle and the cross-section of the transverse channel is crescent-shaped; one end of the longitudinal channel is communicated with the transverse channel, and the other end penetrates through the outer end face of the nozzle.

3. The infiltration coating device according to claim 1, wherein There are two roller brushes in total.

4. The infiltration coating device according to claim 3, wherein the bracket includes a support plate and two mounting plates respectively located at both ends of the support plate. Each mounting plate includes a horizontal plate and a vertical plate which are perpendicularly arranged; the horizontal plate and the vertical plate are in the same horizontal plane and perpendicular to the support plate, the horizontal plate and the vertical plate form a T-shaped structure, and the vertical plate is connected to the support plate; the rolling brush is rotatably connected to the horizontal plate, the fixed pipe is slidably arranged on the vertical plate, and the brush handle is fixed to the support plate.

5. The infiltration coating device according to claim 4, wherein a chute is arranged on the vertical plate along its length direction, the end of the fixed pipe is slidably inserted into the chute, and a first fastening screw is inserted into the chute and fixed to the end of the fixed pipe.

6. The infiltration coating device according to claim 4, wherein the distance between the rolling brush and the fixed pipe can be adjusted.

7. The infiltration coating device according to claim 6, wherein two short plates are slidably inserted into both ends of the horizontal plate in a telescopic manner, and the horizontal plate and the short plates are connected by second positioning screws; a connecting shaft is fixedly connected between the two short plates arranged opposite to each other in the two mounting plates, and the rolling brush is sleeved on the connecting shaft.

8. The infiltration coating device according to claim 1, wherein the brush handle is a telescopic cylinder structure.

9. The infiltration coating device according to claim 1, wherein a switch capable of controlling the on-off of the feeding channel is fixed on the brush handle.

10. The infiltration coating device according to claim 1, wherein semicircular shields are sleeved outside each rolling brush at intervals, the semicircular shields are fixedly connected to the bracket, baffles extending along the axial direction are fixed on the inner walls of the semicircular shields, and the inner ends of the baffles are embedded into the outer edges of the rolling brushes; the infiltration coating device further includes a return pipe and a suction pump. One end of the return pipe is connected to the semicircular shield and communicated with the interval area between the semicircular shield and the rolling brush, and the other end of the return pipe is connected to the paint bucket through the suction pump.

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