Spraying treatment device for building surface

Abstract

The invention provides a spraying treatment device for a building surface, and belongs to the technical field of building construction.The spraying treatment device for the building surface comprises a spraying base plate, a fixing column is fixedly connected to the center of the interior of the spraying base plate, the fixing column is sleeved with a rotating cylinder, and a fluted disc is fixedly connected to the edge of the bottom of the rotating cylinder; the top of the rotating cylinder is sleeved with a rotating ring, a driving assembly is fixedly connected to the edge of the upper surface of the fluted disc, a rotating shaft assembly is arranged in the rotating ring through a radial bearing, a corrugated pipe is arranged between the fluted disc and the rotating ring, and air spraying holes are formed in the rotating ring. The smooth surface of the rotating shaft makes contact with a coating, the flatness of the coating on the surface of a building is improved, the rough grinding surface of the rotating shaft makes contact with a protruding block or an attachment, when the rotating shaft rotates, the rough surface of the rotating shaft grinds and removes the protruding block or the attachment, the rotating shaft generates wind blowing force, air pressure in a corrugated pipe is compressed, dust on the surface of the building is blown away, and the coating is prevented from falling off. And spraying is prevented from being influenced.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a spraying treatment device for a building surface. Background Art

[0002] Construction projects are exposed to wind, sun, rain, wear, corrosion, etc. for a long time, and the surface is often the first to start to be damaged; in order to extend the service life of the construction, the surface of the building needs to be sprayed, generally using a sprayer for direct spraying to change the composition and microstructure of the building surface, so as to improve and enhance its performance and increase the service life of the building materials; however, when spraying the surface of the building, there are defects in the spraying and many problems arise. Often, a spraying treatment device is needed during spraying to assist in the smooth completion of the spraying work and improve the quality of the spraying on the building surface.

[0003] The structures of current building surface spray treatment devices are mostly the same. They all achieve spraying through a spray pump. The overall structure is complex, the volume is large, and it is inconvenient to carry. When the spray treatment device is in use, the paint is generally sprayed onto the building surface, and a wrinkled surface occurs, which easily causes the paint to be uneven; if there are bumps or attachments on the surface of the building, the spraying is affected, and the paint is easy to fall off. The bumps or attachments need to be polished off before spraying; if there is dust on the surface of the building, it affects the spraying. When the paint device polishes and removes the bumps or attachments of the building materials, dust will be generated. Some dust will adhere to the surface of the building. If the surface of the building is polished, the dust or dust is difficult to clean up, which affects the spraying. Summary of the invention

[0004] 1. Technical issues to be resolved The purpose of the present invention is to provide a spraying treatment device for building surfaces, aiming to solve the problem in the prior art that when paint is generally sprayed onto the building surface, a wrinkled surface occurs, which easily causes the paint to be uneven; if there are bumps or attachments on the surface of the building, the spraying is affected, and the paint is easy to fall off, and the bumps or attachments need to be polished off before spraying; if there is dust on the surface of the building, it affects the spraying. When the paint device polishes and removes the bumps or attachments of the building materials, dust will be generated, and some dust will adhere to the surface of the building. If the surface of the building is polished, the dust or dust is difficult to clean off, affecting the spraying and other problems.

[0005] (II) Technical solution To achieve the above object, the present invention provides the following technical solutions: A spraying treatment device for building surfaces, comprising a spraying substrate, a fixed column is fixedly connected at the center of the spraying substrate, a rotating cylinder is sleeved on the fixed column, a toothed disc is fixedly connected at the edge of the bottom of the rotating cylinder, a rotating ring is sleeved on the top of the rotating cylinder, and a driving assembly is fixedly connected at the edge of the upper surface of the toothed disc; The driving assembly includes a first telescopic rod, the free end of the first telescopic rod is fixed to the rotating ring, the free end of the first telescopic rod drives the rotating ring to rise and fall, a side surface of the first telescopic rod is fixedly connected to a support handle, the upper surface of the support handle is fixedly connected to a second telescopic rod, and the free end of the second telescopic rod is fixedly connected to a right-angle rack; A rotating shaft assembly is arranged inside the rotating ring via a radial bearing; The swivel assembly includes a rotating rod, the rotating rod is movably connected to the rotating ring through a bearing, a conversion gear is fixedly connected to the surface of the rotating rod, a swivel is fixedly connected to the end of the rotating rod, the conversion gear is meshed with a right-angle rack, the cross section of the swivel is elliptical, and the surface of the swivel is provided with a rough surface and a smooth surface; A bellows is arranged between the toothed disc and the rotating ring, an air jet hole is arranged on the rotating ring, and the air jet hole is communicated with the bellows, an air intake valve is arranged at the bottom of the bellows, and the air intake valve is fixed to the lower surface of the toothed disc.

[0006] Preferably, a guide rod is fixedly connected to the upper surface of the support handle, a hole is provided inside the right-angle rack, and the guide rod passes through the inside of the hole of the right-angle rack.

[0007] Preferably, a guide bar is fixedly connected to the surface of the rotating cylinder, a sliding shell is fixedly connected to the bottom of the rotating ring, and the guide bar is slidably connected to the rotating ring and the sliding shell.

[0008] Preferably, the driving components are arranged in a circular array around the axis of the rotating cylinder, the toothed disc drives the rotating cylinder to rotate, and the rotating cylinder drives the rotating ring to rotate.

[0009] Preferably, a thrust bearing is arranged between the spray-coated substrate and the toothed disc, a right-angle fixing plate is arranged at the edge of the upper surface of the spray-coated substrate, a servo motor is installed on the top of the right-angle fixing plate, the output end of the servo motor is fixedly connected to a main gear, and the main gear is meshed with the toothed disc.

[0010] Preferably, a spray hole is provided inside the rotating cylinder, a spray head is threadedly connected to the fixing column, and the spray head is adapted to the spray hole.

[0011] Preferably, a paint pump is installed on the lower surface of the spraying substrate through a sealing gasket, the output port of the paint pump is matched with the spraying hole, and the input port of the paint pump is provided with a hose.

[0012] Preferably, a handle No. 1 is fixedly connected to the lower surface of the spray-coated substrate, and a handle No. 2 is fixedly connected to the edge of the spray-coated substrate.

[0013] Preferably, a protective cover is fixedly connected to the edge of the upper surface of the spray-coated substrate, a thrust bearing is arranged between the spray-coated substrate and the rotating cylinder, and the thrust bearing is sleeved on a fixed column.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the servo motor of the present invention is started, the servo motor drives the main gear to rotate, so that the main gear drives the toothed disc to rotate, the toothed disc drives the rotating cylinder to rotate, the rotating ring is rotated by the guide bar, the rotating ring drives the rotating shaft to rotate, and the rotating shaft rotates around the axis of the rotating cylinder. When the rotating shaft rotates, the paint on the surface of the building can be scraped flat by the rotation of the rotating shaft itself. At this time, the smooth surface of the rotating shaft contacts the paint, thereby increasing the flatness of the paint on the surface of the building.

[0015] 2. When the servo motor of the present invention is started, the swivel rotates around the axis of the rotating cylinder. At this time, the free end of the second telescopic rod is started to extend, and the right-angle rack is lifted and lowered, so that the right-angle rack drives the conversion gear to rotate, and the conversion gear drives the rotating rod to rotate, and the rotating rod drives the swivel to flip, and the rough surface of the swivel is flipped from bottom to top. At this time, the coarse-ground surface of the swivel contacts the bump or attachment. When the swivel rotates, the rough surface of the swivel is ground and removed from the bump or attachment.

[0016] 3. The present invention starts the second telescopic rod so that the free end of the second telescopic rod drives the right-angle rack to rise and fall, and adjusts the inclination angle of the swivel by changing the gear. Since the cross-section of the swivel is elliptical, the swivel is at a fan blade angle. When the swivel rotates, the swivel generates wind blowing force to blow away the dust on the surface of the building.

[0017] 4. The present invention only needs to start the extension and retraction of the free end of the first telescopic rod, and then the rotating ring slides and rises on the rotating cylinder, and the rotating ring applies pressure to the bellows to compress the air pressure in the bellows, and the air inlet valve prevents the gas in the bellows from being discharged, thereby causing the gas in the bellows to be ejected from the air jet hole. When the bellows is stretched, external air enters the interior of the bellows through the air inlet valve, thereby further blowing away grinding dust or dust to avoid affecting spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention; Figure 2This is the second schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is one of the local structural schematic diagrams in the present invention; Figure 4 It is one of the cross-sectional structural schematic diagrams in the present invention; Figure 5 It is a front view structural schematic diagram of the present invention; Figure 6 This is the second schematic cross-sectional view of the present invention; Figure 7 This is the second schematic diagram of the local structure of the present invention; Figure 8 This is the third schematic diagram of the local structure in the present invention; Fig. 9 For the present invention Figure 8 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1, spraying substrate; 2, fixing column; 3, gear disc; 4, rotating ring; 5, driving assembly; 501, first telescopic rod; 502, supporting handle; 503, second telescopic rod; 504, right-angle rack; 505, guide rod; 6, swivel assembly; 601, rotating rod; 602, conversion gear; 603, swivel; 7, bellows; 8, jet hole; 9, intake valve; 10, guide bar; 11, sliding shell; 12, right-angle fixing plate; 13, servo motor; 14, main gear; 15, spray hole; 16, nozzle; 17, sealing gasket; 18, paint pump; 19, hose; 20, handle number one; 21, handle number two; 22, protective cover; 23, rotating cylinder. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0021] The present invention provides the following technical solutions (see Figure 1-9 ): refer to Figure 1 and Figure 7 The present invention provides a spraying treatment device for building surfaces, including a spraying substrate 1, a fixed column 2 is fixedly connected to the center of the spraying substrate 1, a rotating cylinder 23 is sleeved on the fixed column 2, a toothed disc 3 is fixedly connected to the edge of the bottom of the rotating cylinder 23, a rotating ring 4 is sleeved on the top of the rotating cylinder 23, and a driving component 5 is arranged at the edge of the upper surface of the toothed disc 3.

[0022] refer to Figure 8 and Fig. 9 The driving assembly 5 includes a first telescopic rod 501, the free end of the first telescopic rod 501 is fixed to the rotating ring 4, the free end of the first telescopic rod 501 drives the rotating ring 4 to rise and fall, a handle 502 is fixedly connected to one side of the first telescopic rod 501, the upper surface of the handle 502 is fixedly connected to the second telescopic rod 503, and the free end of the second telescopic rod 503 is fixedly connected to a right-angle rack 504.

[0023] refer to Figure 4 and Figure 7 A swivel assembly 6 is arranged inside the rotating ring 4 through a radial bearing; the swivel assembly 6 includes a rotating rod 601, which is movably connected to the rotating ring 4 through a bearing, a conversion gear 602 is fixedly connected to the surface of the rotating rod 601, a swivel 603 is fixedly connected to the end of the rotating rod 601, the conversion gear 602 is meshed with the right-angle rack 504, the cross-section of the swivel 603 is elliptical, and the surface of the swivel 603 is provided with a rough surface and a smooth surface.

[0024] More specifically, when the servo motor 13 is started, the servo motor 13 drives the main gear 14 to rotate, so that the main gear 14 drives the toothed disc 3 to rotate, the toothed disc 3 drives the rotating cylinder 23 to rotate, and the rotating ring 4 is rotated through the guide bar 10, and the rotating ring 4 drives the rotating shaft 603 to rotate, so that the rotating shaft 603 rotates around the axis of the rotating cylinder 23. When the rotating shaft 603 rotates, the paint on the surface of the building can be scraped flat by the rotation of the rotating shaft 603 itself. At this time, the smooth surface of the rotating shaft 603 is in contact with the paint, which increases the flatness of the paint on the surface of the building.

[0025] More specifically, when the servo motor 13 is started, the swivel 603 rotates around the axis of the rotating cylinder 23. At this time, the free end of the second telescopic rod 503 is started to extend, and the right-angle rack 504 is lifted and lowered, so that the right-angle rack 504 drives the conversion gear 602 to rotate, and the conversion gear 602 drives the rotating rod 601 to rotate, and the rotating rod 601 drives the swivel 603 to flip, and the rough surface of the swivel 603 is flipped from bottom to top. At this time, the coarse-ground surface of the swivel 603 contacts the bump or attachment. When the swivel 603 rotates, the rough surface of the swivel 603 is ground and removed.

[0026] More specifically, the second telescopic rod 503 is started so that the free end of the second telescopic rod 503 drives the right-angle rack 504 to rise and fall, and the inclination angle of the swivel 603 is adjusted by changing the gear 602. Since the cross-section of the swivel 603 is elliptical, the swivel 603 is at a fan blade angle. When the swivel 603 rotates, the swivel 603 generates wind force to blow away the dust on the surface of the building.

[0027] refer to Figure 6 and Figure 7 A bellows 7 is provided between the toothed disc 3 and the rotating ring 4 , an air jet hole 8 is provided on the rotating ring 4 , and the air jet hole 8 is communicated with the bellows 7 , an air intake valve 9 is provided at the bottom of the bellows 7 , and the air intake valve 9 is fixed to the lower surface of the toothed disc 3 .

[0028] More specifically, it is only necessary to start the extension and retraction of the free end of the first telescopic rod 501, and the rotating ring 4 slides and rises and falls on the rotating cylinder 23. The rotating ring 4 applies pressure to the bellows 7 to compress the air pressure in the bellows 7, and the air inlet valve 9 prevents the gas in the bellows 7 from being discharged, thereby causing the gas in the bellows 7 to be ejected from the air jet hole 8. When the bellows 7 is stretched, external air enters the interior of the bellows 7 through the air inlet valve 9, thereby further blowing away the grinding dust or dust to avoid affecting the spraying.

[0029] refer to Figure 8 and Fig. 9 A guide rod 505 is fixedly connected to the upper surface of the support handle 502 , a hole is provided inside the right-angle rack 504 , and the guide rod 505 passes through the inside of the hole of the right-angle rack 504 .

[0030] More specifically, when the right-angle rack 504 is raised or lowered, the guide rod 505 can increase the stability of the right-angle rack 504 .

[0031] refer to Figure 7 A guide bar 10 is fixedly connected to the surface of the rotating cylinder 23 , a sliding shell 11 is fixedly connected to the bottom of the rotating ring 4 , and the guide bar 10 is slidably connected to the rotating ring 4 and the sliding shell 11 .

[0032] More specifically, when the rotating ring 4 is lifted or lowered on the rotating cylinder 23 , the rotating ring 4 drives the sliding shell 11 to slide on the guide bar 10 , thereby increasing the stability of the rotating ring 4 through the cooperation between the guide bar 10 and the sliding shell 11 .

[0033] refer to Figure 5 , Figure 6 and Figure 7 A thrust bearing is arranged between the spraying substrate 1 and the toothed disc 3, a right-angle fixing plate 12 is arranged at the edge of the upper surface of the spraying substrate 1, a servo motor 13 is installed on the top of the right-angle fixing plate 12, and a main gear 14 is fixedly connected to the output end of the servo motor 13, and the main gear 14 is meshed with the toothed disc 3.

[0034] More specifically, when the servo motor 13 is started, the servo motor 13 drives the main gear 14 to rotate, so that the main gear 14 drives the gear plate 3 to rotate.

[0035] refer to Figure 2 , Figure 5 and Figure 6A spray hole 15 is provided inside the rotating cylinder 23, a nozzle 16 is threadedly connected to the fixed column 2, and the nozzle 16 is adapted to the spray hole 15, a paint pump 18 is installed on the lower surface of the spraying substrate 1 through a sealing gasket 17, the output port of the paint pump 18 is adapted to the spray hole 15, and a hose 19 is provided at the input port of the paint pump 18.

[0036] More specifically, through the coordinated arrangement of the spray hole 15, the nozzle 16, the paint pump 18 and the hose 19, the end of the hose 19 can be inserted into the paint, and the paint can enter the spray hole 15 by opening the paint pump 18, and then enter the nozzle 16 from the spray hole 15, and then the paint can be sprayed out by the nozzle 16. Through the arrangement of the sealing gasket 17, since the output port of the paint pump 18 is connected to the spray hole 15, the sealing gasket 17 can prevent the paint from overflowing.

[0037] refer to Figure 2 A first handle 20 is fixedly connected to the lower surface of the spray-coated substrate 1 , and a second handle 21 is fixedly connected to the edge of the spray-coated substrate 1 .

[0038] More specifically, by cooperating with the first handle 20 and the second handle 21 , the user can operate the device conveniently and the device is easy to carry.

[0039] refer to Figure 1 and 6 A protective cover 22 is fixedly connected to the edge of the upper surface of the spraying substrate 1 , a thrust bearing is arranged between the spraying substrate 1 and the rotating cylinder 23 , and the thrust bearing is sleeved on the fixed column 2 .

[0040] More specifically, by providing the protective cover 22, the protection and safety of the device can be increased.

[0041] The working principle and use process of the present invention are as follows: When the spraying treatment device is in use, the paint is sprayed onto the building surface through the nozzle 16, which may easily cause the paint to be uneven and wrinkled. When the servo motor 13 is started, the servo motor 13 drives the main gear 14 to rotate, so that the main gear 14 drives the toothed disc 3 to rotate, and the toothed disc 3 drives the rotating cylinder 23 to rotate. The rotating ring 4 is rotated through the guide bar 10, and the rotating ring 4 drives the rotating shaft 603 to rotate, so that the rotating shaft 603 rotates around the axis of the rotating cylinder 23. When the rotating shaft 603 rotates, the paint on the building surface can be scraped flat by the rotation of the rotating shaft 603 itself (at this time, the smooth surface of the rotating shaft 603 is in contact with the paint, such as Figure 7 As shown), it increases the smoothness of the paint on the building surface.

[0042] When the spraying treatment device is in use, if there are bumps or attachments on the surface of the building, which affect the spraying and make the paint fall off easily, it is necessary to grind and remove the bumps or attachments before spraying; when the servo motor 13 is started, the swivel 603 rotates around the axis of the rotating cylinder 23, and at this time, the free end of the second telescopic rod 503 is started to extend, and the right-angle rack 504 is raised and lowered, so that the right-angle rack 504 drives the conversion gear 602 to rotate, and the conversion gear 602 drives the rotating rod 601 to rotate, and the rotating rod 601 drives the swivel 603 to flip, and flip the rough surface of the swivel 603 from bottom to top (at this time, the coarse-ground surface of the swivel 603 contacts the bumps or attachments, such as Figure 7 As shown in FIG. 6A ), when the shaft 603 rotates, the rough surface of the shaft 603 is polished away to remove bumps or attachments.

[0043] When the spray treatment device is in use, if there is dust on the surface of the building, it will affect the spraying. When the coating device grinds and removes bumps or attachments on the building materials, dust will be generated. Some dust will adhere to the surface of the building and affect the spraying. Start the second telescopic rod 503 so that the free end of the second telescopic rod 503 drives the right-angle rack 504 to rise and fall, and adjust the inclination angle of the swivel 603 by changing the gear 602. Since the cross-section of the swivel 603 is elliptical, the swivel 603 is at a fan blade angle. When the swivel 603 rotates, the swivel 603 generates wind blowing force to blow away the dust on the surface of the building.

[0044] In addition, if the grinding dust or dust on the surface of the building is difficult to clean, the spray processing device should be slightly away from the building materials; it is only necessary to start the extension and retraction of the free end of the first telescopic rod 501, and the rotating ring 4 will slide and rise on the rotating cylinder 23, and the rotating ring 4 will apply pressure to the bellows 7 to compress the air pressure in the bellows 7, and the air inlet valve 9 prevents the gas in the bellows 7 from being discharged, so that the gas in the bellows 7 is ejected from the air jet hole 8. When the bellows 7 is stretched, the external air enters the interior of the bellows 7 through the air inlet valve 9, and the grinding dust or dust can be further blown away to avoid affecting the spraying.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spraying treatment device for a building surface, comprising a spraying substrate (1), characterized in that: A fixed column (2) is fixedly connected at the center of the spraying substrate (1), a rotating cylinder (23) is sleeved on the fixed column (2), a toothed disc (3) is fixedly connected at the edge of the bottom of the rotating cylinder (23), a rotating ring (4) is sleeved on the top of the rotating cylinder (23), and a driving component (5) is fixedly connected at the edge of the upper surface of the toothed disc (3); The driving assembly (5) comprises a first telescopic rod (501), the free end of the first telescopic rod (501) being fixed to the rotating ring (4), the free end of the first telescopic rod (501) driving the rotating ring (4) to move up and down, a support handle (502) being fixedly connected to one side of the first telescopic rod (501), the upper surface of the support handle (502) being fixedly connected to a second telescopic rod (503), and the free end of the second telescopic rod (503) being fixedly connected to a right-angle rack (504); A rotating shaft assembly (6) is arranged inside the rotating ring (4) via a radial bearing; The swivel assembly (6) comprises a rotating rod (601), a conversion gear (602) being fixedly connected to the surface of the rotating rod (601), a swivel (603) being fixedly connected to the end of the rotating rod (601), the conversion gear (602) being meshed with a right-angle rack (504), the swivel (603) having an elliptical cross section, and a rough surface and a smooth surface being provided on the surface of the swivel (603); and a bellows (7) being provided between the toothed disc (3) and the rotating ring (4).

2. A spraying treatment device for building surface according to claim 1, characterized in that: A guide rod (505) is fixedly connected to the upper surface of the support handle (502); a hole is provided inside the right-angle rack (504); and the guide rod (505) passes through the hole of the right-angle rack (504); and the rotating rod (601) is movably connected to the rotating ring (4) via a bearing.

3. A spraying treatment device for building surface according to claim 1, characterized in that: The rotating ring (4) is provided with an air injection hole (8), and the air injection hole (8) is connected to the bellows (7); the bottom of the bellows (7) is provided with an air intake valve (9), and the air intake valve (9) is fixed to the lower surface of the toothed disc (3); the surface of the rotating cylinder (23) is fixedly connected with a guide bar (10), the bottom of the rotating ring (4) is fixedly connected with a sliding shell (11), and the guide bar (10) is slidably connected to the rotating ring (4) and the sliding shell (11).

4. A spraying treatment device for building surface according to claim 1, characterized in that: The driving components (5) are arranged in a ring array around the axis of the rotating cylinder (23); the toothed disc (3) drives the rotating cylinder (23) to rotate, and the rotating cylinder (23) drives the rotating ring (4) to rotate.

5. The spraying treatment device for building surface according to claim 1, characterized in that: A thrust bearing is provided between the spray-coated substrate (1) and the toothed disc (3); a right-angle fixing plate (12) is provided at the edge of the upper surface of the spray-coated substrate (1); a servo motor (13) is installed on the top of the right-angle fixing plate (12); a main gear (14) is fixedly connected to the output end of the servo motor (13); and the main gear (14) is meshed with the toothed disc (3).

6. A spraying treatment device for building surface according to claim 1, characterized in that: A material spraying hole (15) is provided inside the fixed column (2), a spray head (16) is threadedly connected to the fixed column (2), and the spray head (16) is compatible with the material spraying hole (15).

7. A spraying treatment device for building surface according to claim 1, characterized in that: A paint pump (18) is installed on the lower surface of the spraying substrate (1) via a sealing gasket (17); the output port of the paint pump (18) is matched with the spray hole (15); and the input port of the paint pump (18) is provided with a hose (19).

8. The spraying treatment device for building surface according to claim 1, characterized in that: A first handle (20) is fixedly connected to the lower surface of the spray-coated substrate (1), and a second handle (21) is fixedly connected to the edge of the spray-coated substrate (1).

9. The spraying treatment device for building surface according to claim 1, characterized in that: A protective cover (22) is fixedly connected to the edge of the upper surface of the spray-coated substrate (1), a thrust bearing is provided between the spray-coated substrate (1) and the rotating cylinder (23), and the thrust bearing is sleeved on the fixed column (2).

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