Adjusting type paint scraping and coating device for building outer wall

Abstract

The invention provides an adjustable paint blade coating device for a building outer wall, and belongs to the technical field of outer wall primer spraying. The adjustable paint scraping and coating device for the building outer wall comprises an equipment box, moving wheels are arranged on the two sides of the equipment box correspondingly, driving motors are fixedly installed on the two sides of clamping frames correspondingly, extension plates are fixedly installed on one sides of the two clamping frames correspondingly, and a paint coating mechanism is arranged on the top face of one extension plate. According to the paint spraying device, a first motor is controlled to rotate to drive a positioning frame and the first motor to rotate, so that a paint spraying nozzle can achieve spraying adjustment of a left angle and a right angle, and an electric telescopic rod is controlled to stretch out and draw back to drive a fixed mounting disc to move up and down; and in the moving process, under the action of the L-shaped rod, the top frame can adjust the vertical angle along with rotation of the limiting shaft, and therefore the purpose of flexibly adjusting the vertical angle and the left-right angle of the painting spray head in the spraying process can be achieved.

Description

Technical Field

[0001] This invention relates to the field of exterior wall primer spraying technology, and more specifically, to an adjustable scraper paint application device for building exterior walls. Background Technology

[0002] The use of new-type clear colored stone exterior walls in building exterior decoration is a trend in green building development and is being vigorously promoted in the construction industry. Compared with traditional construction methods, this process has advantages such as convenient construction, high work efficiency, good decorative effect, reliable product quality, durability, and long service life. The decoration and finishing system is an important part of the traditional structure, and its performance is related to the overall decorative stability of the building. Currently used building exterior wall decoration systems can basically prevent the erosion of buildings by harsh external environments and extend the building's lifespan. Before applying the clear colored stone, the area of ​​the building wall to be covered needs to be pre-treated, such as using black primer instead of transparent primer. Each application of primer should be controlled within the width of two rollers, leaving a 1-2 cm gap from the film-forming area, and rolling back and forth multiple times. After there is no excess primer on the roller, the roller should be rolled to the film-forming area, ensuring a uniform and consistent paint film without any missed spots. The final finishing action of the primer should be from bottom to top, with the roller in parallel contact with the wall surface, using light pressure, ideally with the roller floating on the paint film surface. The joint paint should only be applied after the primer is completely dry.

[0003] In the process of primer spraying, a painting device is needed to spray the primer onto the exterior wall. However, existing painting devices still have some problems in actual use. For example, existing painting devices can only perform independent painting operations. After the paint is sprayed onto the exterior wall, a paint hanging operation is also required on the painted wall surface to improve the stability of the painting. How to integrate painting and paint hanging has become an urgent problem to be solved. To this end, the present invention provides a painting device that can realize the simultaneous painting and paint hanging. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides an adjustable scraping paint device for building exterior walls that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows: This invention provides an adjustable scraping and painting device for building exterior walls, comprising an equipment box, with casters on both sides of the equipment box, and a limit frame fixedly installed on the top surface of the equipment box. A locking bracket is attached to the outer side of each limit frame, and a drive motor is fixedly installed on both sides of each locking bracket. Rollers are fixedly installed at the output ends of each drive motor, with the outer surface of the rollers contacting one side of the limit frame. An extension plate is fixedly installed on one side of each locking bracket. A painting mechanism is provided on the top surface of one extension plate, and a material hanging mechanism is provided on the top surface of the other extension plate. A storage box is fixedly installed on the top surface of the equipment box, and a sealing cap is attached to the top of the storage box. The painting mechanism includes a disc frame, which is fixedly installed on the top surface of the extension plate. A paint spray nozzle is provided above the disc frame. The painting mechanism is used for painting the exterior walls of buildings.

[0006] In a preferred embodiment, a fixing frame is fixedly installed on the top surface of the disc frame, a fixing block is fixedly installed on the inner side of the fixing frame, a top frame is provided on the top surface of the fixing block, an mounting plate is fixedly installed on the top surface of the top frame, the paint spray head is fixedly installed on the top surface of the mounting plate, and a motor is fixedly installed on the top surface of the disc frame, with the output end of the motor rotatably installed inside the fixing block.

[0007] In a preferred embodiment, a positioning frame is provided on the top surface of the top frame, a limiting shaft is rotatably installed inside the positioning frame, the top frame is fixedly installed at both ends of the limiting shaft, and the output end of the first motor is fixedly connected to the bottom surface of the positioning frame.

[0008] In a preferred embodiment, an electric telescopic rod is fixedly installed on the top surface of the disc frame, and a fixed mounting plate is fixedly connected to the top end of the electric telescopic rod. A limiting groove is formed inside the fixed mounting plate. L-shaped rods are fixedly installed on both sides of the top frame. One end of the L-shaped rod is engaged inside the limiting groove, and a contact head is fixedly connected to the end of the L-shaped rod located inside the limiting groove.

[0009] In a preferred embodiment, the material hanging mechanism includes a T-shaped frame, with rectangular plates fixedly installed at both ends of the T-shaped frame, and uprights fixedly installed at both ends of the top surface of the rectangular plates. A connecting rod is movably inserted into the uprights, and a connecting frame is fixedly installed at one end of the connecting rod. A C-shaped frame is fixedly installed on one side of the connecting frame, and a paint roller is rotatably installed inside the C-shaped frame.

[0010] In a preferred embodiment, an installation sleeve is fixedly installed on the top surface of the upright, and an installation shaft is movably inserted into the interior of the installation sleeve. A rotating roller is fixedly installed at one end of the installation shaft, and a spiral groove is formed on the outer side of the rotating roller. An external frame is fixedly installed on the outer surface of the insertion rod located between the two uprights, and a spherical protrusion is fixedly installed on the top surface of the external frame. The spherical protrusion is engaged inside the spiral groove.

[0011] In a preferred embodiment, a second motor is fixedly mounted on one side of the T-shaped frame, and pulleys are fixedly mounted on both the output end of the second motor and one end of the mounting shaft. A transmission belt is sleeved between the three pulleys.

[0012] In a preferred embodiment, a collection box is provided below the paint roller, and the collection box is fixedly mounted on the connecting frame.

[0013] In a preferred embodiment, the storage box is provided with an anti-sedimentation mechanism, which includes a rotating shaft rotatably installed inside the storage box. An installation sleeve is fixedly installed on the outer surface of the rotating shaft inside the storage box. Multiple actuating plates are equidistantly installed on the outer surface of the installation sleeve, and a through groove is opened on one side of each of the multiple actuating plates.

[0014] In a preferred embodiment, a gear is fixedly installed at one end of the rotating shaft located outside the storage box, and a toothed plate is fixedly installed at the other end of the plug rod, the toothed plate meshing with the gear.

[0015] The present invention provides an adjustable scraping paint device for building exterior walls, the beneficial effects of which include: 1. By setting up a painting mechanism, the rotation of motor one drives the rotation of the positioning frame and motor one, enabling the painting nozzle to adjust the spraying angle to the left and right. Furthermore, by controlling the extension and retraction of the electric telescopic rod, the fixed mounting plate can move up and down. During the movement, the L-shaped rod allows the top frame to adjust its up and down angle as the limit shaft rotates. In other words, the extension and retraction of the electric telescopic rod can adjust the up and down spraying angle of the painting nozzle, thus achieving the goal of flexibly adjusting the up and down and left and right angles of the painting nozzle during the spraying process.

[0016] 2. By setting up a material hanging mechanism and controlling the second motor to start, the rotating roller is driven to rotate under the action of the pulley and transmission belt. Since the spherical protrusion is engaged inside the spiral groove, when the rotating roller rotates clockwise, it can drive the insertion rod to move towards the paint spray head until the paint hanging roller contacts the painted wall surface. Then, the clamping frame moves downward outside the limit frame. At this time, the paint hanging roller is in contact with the wall surface. During the downward movement of the paint hanging roller, the paint hanging operation on the wall surface can be realized, so that the primer sprayed by the paint spray head can better adhere to the wall surface, thereby achieving the purpose of spreading the sprayed primer paint.

[0017] 3. By setting an anti-settling mechanism, when the plug rod moves, it can drive the rotating shaft to rotate under the action of the gear and toothed plate, which in turn enables the second mounting sleeve and the agitator plate to rotate inside the storage box, agitating the primer paint stored inside the storage box and preventing the primer paint inside the storage box from settling. This achieves the purpose of agitating the primer paint inside the storage box during the painting process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall perspective view provided by an embodiment of the present invention; Figure 2 A schematic diagram of the overall front view structure provided for an embodiment of the present invention; Figure 3 A schematic diagram of the painting mechanism structure provided for an embodiment of the present invention; Figure 4 A schematic diagram of the fixed mounting disk structure provided for an embodiment of the present invention; Figure 5 A schematic diagram of the material hanging mechanism provided for an embodiment of the present invention; Figure 6 A schematic diagram of the collection box installation structure provided for an embodiment of the present invention; Figure 7 A schematic diagram of the spiral groove structure provided for an embodiment of the present invention; Figure 8 A schematic diagram of the anti-settling mechanism provided for an embodiment of the present invention.

[0020] In the diagram: 1. Equipment box; 2. Casters; 3. Stand; 4. Storage box; 5. Sealing cover; 6. Painting mechanism; 61. Disc frame; 62. Fixing frame; 63. Fixing block; 64. Top frame; 65. Mounting plate; 66. Paint nozzle; 67. Motor 1; 68. Positioning frame; 69. Limiting shaft; 611. Electric telescopic rod; 612. Fixed mounting plate; 613. Limiting groove; 614. L-shaped rod; 615. Contact head; 7. Material hanging mechanism; 71. T-shaped frame; 72. Rectangular plate; 73. Stand; 74. Plug-in connector 75. Rod; 76. Connecting frame; 77. C-shaped frame; 78. Paint roller; 79. Mounting sleeve one; 70. Mounting shaft; 710. Motor two; 711. Pulley; 712. Transmission belt; 713. Rotating roller; 714. Spiral groove; 715. External frame; 716. Spherical protrusion; 8. Anti-settling mechanism; 81. Rotating shaft; 82. Mounting sleeve two; 83. Actuating plate; 84. Through groove; 85. Gear; 86. Toothed plate; 9. Collection box; 10. Limiting frame; 11. Snap-fit ​​frame; 12. Drive motor; 13. Extension plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Reference Figures 1-8This invention provides a technical solution: an adjustable scraping and painting device for building exterior walls, comprising an equipment box 1, with casters 2 on both sides of the equipment box 1, a 3 fixedly mounted on the top surface of the equipment box 1, and limit frames 10 mounted on both sides of the 3. A locking frame 11 is engaged with the outer side of the limit frame 10, and a drive motor 12 is fixedly mounted on both sides of the locking frame 11. Rollers are fixedly mounted on the output ends of the drive motors 12, with the outer surface of the rollers contacting one side of the limit frame 10. An extension plate 13 is fixedly mounted on one side of each of the two locking frames 11, with a painting mechanism 6 mounted on the top surface of one extension plate 13, and the other extension plate 13... The top surface of the extension plate 13 is provided with a hanging mechanism 7, and the top surface of the equipment box 1 is fixedly installed with a storage box 4. The top of the storage box 4 is snapped with a sealing cap 5. During use, the primer paint can be added into the storage box 4 and the sealing cap 5 is put on to seal it. Then, the pipe is connected to the interface of the paint spray nozzle 66. Finally, the whole device is pushed to the position where it needs to be sprayed to carry out the spraying operation on the building wall. During the spraying process, the rotation of the drive motor 12 can be controlled to drive the snap-fit ​​frame 11 to move up and down along the outside of the limit frame 10 to achieve the spraying operation of the wall at different heights. The painting mechanism 6 includes a disc frame 61, which is fixedly installed on the top surface of the extension plate 13. A paint spray head 66 is arranged above the disc frame 61. The painting mechanism 6 is used for painting the exterior walls of buildings. A fixing frame 62 is fixedly installed on the top surface of the disc frame 61. A fixing block 63 is fixedly installed on the inner side of the fixing frame 62. A top frame 64 is arranged on the top surface of the fixing block 63. A mounting plate 65 is fixedly installed on the top surface of the top frame 64. The paint spray head 66 is fixedly installed on the top surface of the mounting plate 65. A motor 67 is fixedly installed on the top surface of the disc frame 61. The output end of the motor 67 is rotatably installed inside the fixing block 63. The top surface of the top frame 64... A positioning frame 68 is provided, with a limiting shaft 69 rotatably mounted inside the positioning frame 68. A top frame 64 is fixedly mounted at both ends of the limiting shaft 69. The output end of motor 67 is fixedly connected to the bottom surface of the positioning frame 68. An electric telescopic rod 611 is fixedly mounted on the top surface of the disc frame 61. A fixed mounting plate 612 is fixedly connected to the top end of the electric telescopic rod 611. A limiting groove 613 is opened inside the fixed mounting plate 612. L-shaped rods 614 are fixedly mounted on both sides of the top frame 64. One end of the L-shaped rod 614 is engaged inside the limiting groove 613. A contact head 615 is fixedly connected to the end of the L-shaped rod 614 inside the limiting groove 613.

[0023] During operation, the rotation of motor 67 drives the positioning frame 68 and motor 67 to adjust the spraying angle of the paint nozzle 66. Furthermore, the extension and retraction of the electric telescopic rod 611 moves the fixed mounting plate 612 up and down. During this movement, the L-shaped rod 614, along with the rotation of the limiting shaft 69, allows the top frame 64 to adjust its angle up and down. In other words, the extension and retraction of the electric telescopic rod 611 adjusts the spraying angle of the paint nozzle 66, thus achieving flexible adjustment of the up / down and left / right angles of the paint nozzle 66 during spraying, thereby improving the spraying effect on the building wall.

[0024] The material hanging mechanism 7 includes a T-shaped frame 71, with rectangular plates 72 fixedly installed at both ends of the T-shaped frame 71. Vertical supports 73 are fixedly installed at both ends of the top surface of the rectangular plates 72. A connecting rod 74 is movably inserted into the interior of the vertical support 73. A connecting frame 75 is fixedly installed at one end of the connecting rod 74. A C-shaped frame 76 is fixedly installed on one side of the connecting frame 75. A paint roller 77 is rotatably installed inside the C-shaped frame 76. An installation sleeve 78 is fixedly installed on the top surface of the vertical support 73. An installation shaft 79 is movably inserted into the interior of the installation sleeve 78. A rotating roller 713 is fixedly installed at one end. A spiral groove 714 is opened on the outer side of the rotating roller 713. An external frame 715 is fixedly installed on the outer surface of the plug rod 74 between the two uprights 73. A spherical protrusion 716 is fixedly installed on the top surface of the external frame 715. The spherical protrusion 716 is engaged inside the spiral groove 714. A second motor 710 is fixedly installed on one side of the T-shaped frame 71. A pulley 711 is fixedly installed at the output end of the second motor 710 and at one end of the mounting shaft 79. A transmission belt 712 is sleeved between the three pulleys 711.

[0025] During operation, after the wall surface is sprayed, such as after the paint sprayer 66 has finished spraying from bottom to top, the paint sprayer 66 can be turned off when it reaches the top. Then, the control motor 710 is started. During the start-up process of the motor 710, the pulley 711 and the transmission belt 712 drive the roller 713 to rotate. Since the spherical protrusion 716 is engaged inside the spiral groove 714, when the roller 713 rotates clockwise, it can drive the insertion rod 74 to move towards the paint sprayer 66 until the paint roller 77 contacts the sprayed wall surface. This allows the card holder 11 to move downwards outside the limit holder 10. At this time, the paint roller 77 is in contact with the wall surface. During the downward movement of the paint roller 77, the paint application operation on the wall surface can be achieved, so that the primer sprayed through the paint nozzle 66 can better adhere to the wall surface. This achieves the purpose of spreading the sprayed primer, making the primer adhere to the wall surface more smoothly. Furthermore, by controlling the distance between the paint roller 77 and the wall surface, the thickness of the paint can be flexibly adjusted, thereby further improving the overall practicality of the device.

[0026] This device has two operating modes. One mode allows the paint roller 77 to contact the wall surface while spraying, enabling simultaneous spraying and painting. The other mode allows painting to be performed separately after spraying is completed.

[0027] A collection box 9 is provided below the paint roller 77. The collection box 9 is fixedly installed on the connecting frame 75. As the paint roller 77 rolls along the paint surface, excess primer paint will fall into the collection box 9 for unified collection. After the overall spraying is completed, it can be reused to avoid waste of primer paint.

[0028] The storage box 4 is equipped with an anti-sedimentation mechanism 8. The anti-sedimentation mechanism 8 includes a rotating shaft 81, which is rotatably installed inside the storage box 4. An installation sleeve 82 is fixedly installed on the outer surface of the rotating shaft 81 inside the storage box 4. Multiple actuating plates 83 are equidistantly installed on the outer surface of the installation sleeve 82. A through groove 84 is opened on one side of each actuating plate 83. A gear 85 is fixedly installed on one end of the rotating shaft 81 outside the storage box 4, and a toothed plate 86 is fixedly installed on the other end of the plug rod 74. The toothed plate 86 and the gear 85 mesh with each other.

[0029] During operation, when the plug rod 74 moves, it can synchronously drive the toothed plate 86 to move. Since the toothed plate 86 and the gear 85 mesh with each other, when the plug rod 74 moves, it can drive the rotating shaft 81 to rotate under the action of the gear 85 and the toothed plate 86. This allows the mounting sleeve 82 and the agitator plate 83 to rotate inside the storage box 4, agitating the primer paint stored inside the storage box 4 and preventing the primer paint inside the storage box 4 from settling. This achieves the purpose of agitating the primer paint inside the storage box 4 during the painting process.

[0030] Specifically, the working process or principle of this adjustable scraper painting device for building exterior walls is as follows: When in use, the primer is uniformly added into the storage tank 4 and sealed with the sealing cap 5. Then, the device is connected to the spray nozzle 66 via a pipe. Finally, the entire device is pushed to the desired spraying position to perform the spraying operation on the building wall. During the spraying process, the rotation of the drive motor 12 can be controlled to move the clamping frame 11 up and down along the outside of the limiting frame 10, achieving spraying operations on walls at different heights. The rotation of motor 67 can drive the positioning frame 68 and motor 67 to rotate, allowing the paint spray head 66 to adjust its spraying angle left and right. Furthermore, controlling the extension and retraction of the electric telescopic rod 611 can drive the fixed mounting plate 612 to move up and down. During this movement, the L-shaped rod 614, along with the rotation of the limit shaft 69, allows the top frame 64 to adjust its angle up and down. In other words, the extension and retraction of the electric telescopic rod 611 can adjust the up and down spraying angle of the paint spray head 66. This can be achieved by controlling the start of motor 710. During the startup of motor 710, the roller 713 is driven to rotate by the pulley 711 and the transmission belt 712. Since the spherical protrusion 716 is engaged inside the spiral groove 714, when the roller 713 rotates clockwise, it can drive the insertion rod 74 to move towards the paint spray nozzle 66 until the paint roller 77 contacts the painted wall surface. Then, the clamping frame 11 moves downward outside the limiting frame 10. At this time, the paint roller 77 is in contact with the wall surface. During the downward movement of the paint roller 77, the paint can be applied to the wall surface. The operation allows the primer sprayed through the paint nozzle 66 to adhere better to the wall surface. When the plug rod 74 moves, it can synchronously drive the toothed plate 86 to move. Since the toothed plate 86 and the gear 85 mesh with each other, when the plug rod 74 moves, it can drive the rotating shaft 81 to rotate under the action of the gear 85 and the toothed plate 86. This allows the mounting sleeve 82 and the agitator plate 83 to rotate inside the storage box 4, agitating the primer stored inside the storage box 4 and preventing the primer inside the storage box 4 from settling.

[0031] It should be noted that the paint spray head 66 is a device or equipment existing in the prior art, or a device or equipment that can be implemented by the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

Claims

1. An adjustable scraper paint applicator for building exterior walls, comprising an equipment box (1), characterized in that, The equipment box (1) is provided with casters (2) on both sides. The top surface of the equipment box (1) is fixedly installed with (3). The two sides of the (3) are provided with limit frames (10). The outer side of the limit frame (10) is connected to a snap-fit ​​frame (11). The two sides of the snap-fit ​​frame (11) are fixedly installed with drive motors (12). The output end of the drive motor (12) is fixedly installed with rollers. The outer surface of the rollers is in contact with one side of the limit frame (10). The two snap-fit ​​frames (11) are fixedly installed with extension plates (13) on one side. The top surface of one extension plate (13) is provided with a painting mechanism (6). The top surface of the other extension plate (13) is provided with a hanging mechanism (7). The top surface of the equipment box (1) is fixedly installed with a storage box (4). The top of the storage box (4) is snapped with a sealing cover (5). The painting mechanism (6) includes a disc frame (61), which is fixedly installed on the top surface of the extension plate (13). A paint spray nozzle (66) is provided above the disc frame (61). The painting mechanism (6) is used for painting the exterior walls of the building.

2. The adjustable scraper painting device for building exterior walls according to claim 1, characterized in that, A fixing frame (62) is fixedly installed on the top surface of the disc frame (61). A fixing block (63) is fixedly installed on the inner side of the fixing frame (62). A top frame (64) is provided on the top surface of the fixing block (63). An installation plate (65) is fixedly installed on the top surface of the top frame (64). The paint spray nozzle (66) is fixedly installed on the top surface of the installation plate (65). A motor (67) is fixedly installed on the top surface of the disc frame (61). The output end of the motor (67) is rotatably installed inside the fixing block (63).

3. The adjustable scraper painting device for building exterior walls according to claim 2, characterized in that, The top surface of the top frame (64) is provided with a positioning frame (68), and a limiting shaft (69) is rotatably installed inside the positioning frame (68). The top frame (64) is fixedly installed at both ends of the limiting shaft (69), and the output end of the motor (67) is fixedly connected to the bottom surface of the positioning frame (68).

4. The adjustable scraper painting device for building exterior walls according to claim 3, characterized in that, An electric telescopic rod (611) is fixedly installed on the top surface of the disc frame (61). A fixed mounting plate (612) is fixedly connected to the top of the electric telescopic rod (611). A limiting groove (613) is opened inside the fixed mounting plate (612). L-shaped rods (614) are fixedly installed on both sides of the top frame (64). One end of the L-shaped rod (614) is engaged inside the limiting groove (613). A contact head (615) is fixedly connected to the end of the L-shaped rod (614) inside the limiting groove (613).

5. An adjustable scraper paint applicator for building exterior walls according to claim 4, characterized in that, The material hanging mechanism (7) includes a T-shaped frame (71), with rectangular plates (72) fixedly installed at both ends of the T-shaped frame (71), and uprights (73) fixedly installed at both ends of the top surface of the rectangular plates (72). A connecting rod (74) is movably inserted into the upright (73), and a connecting frame (75) is fixedly installed at one end of the connecting rod (74). A C-shaped frame (76) is fixedly installed on one side of the connecting frame (75), and a paint roller (77) is rotatably installed inside the C-shaped frame (76).

6. The adjustable scraper painting device for building exterior walls according to claim 5, characterized in that, The top surface of the support frame (73) is fixedly installed with an installation sleeve (78), and an installation shaft (79) is movably inserted into the inside of the installation sleeve (78). A rotating roller (713) is fixedly installed at one end of the installation shaft (79). A spiral groove (714) is opened on the outer side of the rotating roller (713). An outer frame (715) is fixedly installed on the outer surface of the insertion rod (74) between the two supports (73). A spherical protrusion (716) is fixedly installed on the top surface of the outer frame (715). The spherical protrusion (716) is engaged inside the spiral groove (714).

7. An adjustable scraper paint applicator for building exterior walls according to claim 6, characterized in that, A motor (710) is fixedly installed on one side of the T-shaped frame (71). A pulley (711) is fixedly installed on the output end of the motor (710) and one end of the mounting shaft (79). A transmission belt (712) is sleeved between the three pulleys (711).

8. An adjustable scraper paint applicator for building exterior walls according to claim 7, characterized in that, A collection box (9) is provided below the paint roller (77), and the collection box (9) is fixedly installed on the connecting frame (75).

9. An adjustable scraper paint applicator for building exterior walls according to claim 8, characterized in that, The storage box (4) is provided with an anti-sedimentation mechanism (8). The anti-sedimentation mechanism (8) includes a rotating shaft (81). The rotating shaft (81) is rotatably installed inside the storage box (4). An installation sleeve (82) is fixedly installed on the outer surface of the rotating shaft (81) inside the storage box (4). Multiple actuating plates (83) are equidistantly installed on the outer surface of the installation sleeve (82). A through groove (84) is opened on one side of each of the multiple actuating plates (83).

10. An adjustable scraper paint applicator for building exterior walls according to claim 9, characterized in that, A gear (85) is fixedly installed at one end of the rotating shaft (81) located outside the storage box (4), and a toothed plate (86) is fixedly installed at the other end of the plug rod (74). The toothed plate (86) and the gear (85) mesh with each other.

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