A wall painting structure for building construction and a painting method thereof

Abstract

The application belongs to the technical field of building construction equipment, and discloses a wall surface brushing structure for building construction, which comprises a handle, one end of the handle is fixedly connected with a pulling unit, one end of the pulling unit away from the handle is fixedly connected with a fixing unit, one end of the fixing unit away from the pulling unit is fixedly connected with a second fixing plate, and the inner wall of one end of the second fixing plate away from the fixing unit is fixedly connected with a limiting unit. The application realizes the control of the discharging amount of the brushing paint by the cooperation of the pulling unit, the movable unit and other structures, presses the sponge with the brushing paint, and the paint in the sponge enters the outer wall of the brushing cloth through the hollow groove, the pulling force of the pulling ring is controlled by the construction personnel, the pressing of the sponge by the fourth abutting plate is controlled, and the control of the discharging amount of the brushing paint is realized.

Description

Technical Field

[0001] This invention belongs to the field of building construction equipment technology, specifically a wall coating structure and coating method for building construction. Background Technology

[0002] In the construction industry, wall paint is used for decoration and protection, making building walls look beautiful and clean, while also protecting them and extending their lifespan. However, existing wall painting equipment used in construction still has drawbacks in practical use:

[0003] In practice, construction workers immerse paintbrushes in paint buckets, allowing the paint to adhere to and remain on the brush surface. They then roll the brush roller down the wall to apply the paint. However, due to differences in paint materials and desired paint thickness, workers need to carefully control the amount of paint applied to the brush. For thinner coats, the brush needs less contact with the wall, and only one coat is required. For thicker coats, multiple coats are needed, making the process cumbersome. Therefore, this paper proposes a wall painting structure for construction that allows for manual control of paint application and subsequent brushing, improving work efficiency. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a wall coating structure and its coating method for building construction, which solves the drawback of low work efficiency caused by the inability to control the amount of paint applied according to actual needs in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wall coating structure for building construction, comprising a handle, a pulling unit fixedly connected to one end of the handle, a fixing unit fixedly connected to the end of the pulling unit away from the handle, a second fixing plate fixedly connected to the end of the fixing unit away from the pulling unit, a limiting unit fixedly connected to the inner wall of the end of the second fixing plate away from the fixing unit, a hollow groove ring movably engaged with the inner wall of the limiting unit, an abutting unit movably connected inside the limiting unit, a pressing unit located on the inner wall of the hollow groove ring abutting the outer wall of the abutting unit, a coating cloth fixedly connected to the outer wall of the hollow groove ring, and movable units abutting the abutting units at both the upper and lower ends of the side wall of the pulling unit away from the handle.

[0006] Preferably, the inner end of the second fixing plate is fixedly connected to a protective arc plate corresponding to the coating cloth, and the side wall of the protective arc plate away from the pulling unit is smooth.

[0007] Preferably, the fixing unit includes a first fixing plate that is fixedly connected to the pulling unit and the second fixing plate, and a pulley that is in contact with the moving unit is fixedly connected to one end of the first fixing plate near the pulling unit.

[0008] Preferably, the limiting unit includes a limiting plate that engages with the hollowed-out groove ring, the inner wall of the limiting plate is movably connected to the abutment unit, the outer wall of the limiting plate away from the extrusion unit is fixedly connected to a connecting pipe, the inside of the connecting pipe is fixedly connected to a first connecting rope, and the end of the first connecting rope away from the connecting pipe is fixedly connected to the movable unit.

[0009] Preferably, the movable unit includes a second connecting rope movably connected to the inside of the fixed unit and the second fixed plate, and a mounting plate and a second telescopic abutment plate fixedly connected to the second fixed plate. The end of the second telescopic abutment plate away from the second fixed plate is fixedly connected to a first abutment plate that abuts against the abutment unit. The end of the first abutment plate away from the second telescopic abutment plate is fixedly connected to a first telescopic abutment plate that abuts against the limiting unit. The inner end of the first telescopic abutment plate is fixedly connected to the outer wall of the limiting unit. The top and bottom of the first abutment plate are both fixedly installed with baffles movably connected to the limiting unit. A spring telescopic cylinder is fixedly connected between the baffle and the mounting plate. The side of the first abutment plate that contacts the abutment unit has an angled opening.

[0010] Preferably, the abutting unit includes a second abutting plate movably connected to the limiting unit, a third abutting plate located inside the hollow groove ring is fixedly connected to the inner end of the second abutting plate, a bidirectional spring telescopic tube is fixedly connected to the inner wall of both third abutting plates, four stops that abut against the extrusion unit are fixedly installed at equal angles on the outer wall of the middle end of the bidirectional spring telescopic tube, and connecting telescopic tubes connected to the limiting unit are fixedly installed at the upper and lower ends of the third abutting plate near the side wall of the limiting unit.

[0011] Preferably, the extrusion unit includes a sponge that abuts against the inner wall of the hollow groove ring. The inner wall of the sponge is fixedly installed with four fourth abutting plates that abut against the abutting unit at equal angles. Both ends of the fourth abutting plates are provided with oblique angles that abut against the third abutting plates.

[0012] Preferably, the pulling unit includes a mounting rod fixedly connected to the handle and the fixed unit. A pulling ring is sleeved on the outer wall of the mounting rod away from the handle. The pulling ring is fixedly connected to the movable unit at the outer wall away from the handle. A flexible spring is movably sleeved on the outer wall of the mounting rod. The two ends of the flexible spring are fixedly connected to the pulling ring and the handle, respectively.

[0013] Preferably, the side wall of the second contact plate that contacts the movable unit has an angled opening, and the third contact plate has a frustum shape.

[0014] This application also proposes a method for painting walls during building construction, wherein the method for painting walls during building construction is as follows:

[0015] S1. Place the front end of the coating structure into the paint bucket and press down to allow the paint to enter the hollow groove ring from the inside of the connecting tube and immerse it into the inside of the sponge, thus storing the paint.

[0016] S2. Move the pull ring backward. The pull ring will cause the second connecting rope to move together inside the first fixed plate and the second fixed plate. The second connecting rope will pull the first abutment plate through the baffle to abut the outer end of the second abutment plate, causing the second abutment plate to move inward into the limiting plate. As the first abutment plate moves, the first connecting rope will pull the connecting tube so that its outer end abuts against the inner wall of the first telescopic abutment plate, thus achieving closure.

[0017] S3. When the second contact plate moves inside the hollow groove ring under the pressure of the first contact plate, the second contact plate will cause the third contact plate to contact the four fourth contact plates, so as to press the sponge with paint on it. After being pressed, the paint inside the sponge will enter the outer wall of the coating cloth through the hollow groove ring. When the coating cloth is applying paint, the sponge will be limited by the four blocks to prevent it from rotating, thus ensuring the stable position of the sponge inside the hollow groove ring.

[0018] S4. The worker's palm is positioned on the handle, and the thumb hooks onto the inner wall of both ends of the pull ring. The worker pulls the pull ring towards the handle using the thumb. The amount of paint discharged from the coating cloth is controlled by the continuous movement of the distance between the pull ring and the handle.

[0019] S5. During use, when the coating cloth of the coating device is applied to the wall, the protective arc plate will be located directly below the coating cloth and the wall, and will move downward together with the movement of the second fixed plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] This invention achieves control over the amount of paint discharged by setting up a pulling unit and a moving unit. Pulling the pulling ring will pull the second connecting rope, which will pull the first abutment plate through the baffle to abut the outer end of the second abutment plate and then to the four fourth abutment plates, thus pressing the sponge with paint on it. The pressed sponge will allow the paint inside to enter the outer wall of the coating cloth through the hollow groove ring. The construction personnel can control the pulling force of the pulling ring to control the pressure of the fourth abutment plates on the sponge, thereby achieving control over the amount of paint discharged.

[0022] This invention, through the combination of limiting units and abutment units, prevents paint from falling outwards after application and avoids paint sticking to the sponge and the hollow groove ring, thus preventing the sponge from conveying paint to the inner wall of the coating cloth. When the first abutment plate is pulled towards the handle, it will pull the first connecting rope to move together. The continuous pulling of the first connecting rope will cause the outer end of the connecting tube to abut the inner wall of the first telescopic abutment plate, achieving a sealing effect at the opening of the connecting tube. This prevents paint from falling downwards during the coating process after it has adhered to the inner cavity of the hollow groove ring. At the same time, when the coating cloth is being coated, the stop block will abut against the third abutment plate to limit and stabilize it. This will cause the wall of the hollow groove ring that is in contact with the sponge to move and rub continuously during the coating process, thereby preventing paint from sticking to the inner wall of the coating cloth. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the side cross-sectional structure of the present invention;

[0026] Figure 4 This is a schematic diagram of a partial cross-sectional view of the top of the present invention;

[0027] Figure 5 for Figure 4 A magnified schematic diagram of the partial structure at point A in the middle;

[0028] Figure 6 This is a schematic diagram showing the structural fit between the second fixing plate and the coating cloth of the present invention;

[0029] Figure 7 for Figure 6 A magnified view of the structure at point B in the middle;

[0030] Figure 8 This is a schematic diagram showing the structural fit between the coating cloth and the extrusion unit of the present invention;

[0031] Figure 9 for Figure 8 A magnified schematic diagram of the structure at point C.

[0032] In the diagram: 1. Handle; 2. Fixing unit; 21. First fixing plate; 22. Pulley; 3. Second fixing plate; 4. Limiting unit; 41. Limiting plate; 42. Connecting tube; 43. First connecting rope; 5. Coating cloth; 6. Movable unit; 61. First contact plate; 62. Baffle; 63. Second connecting rope; 64. Spring telescopic cylinder; 65. Mounting plate; 66. First telescopic contact plate; 67. Second telescopic contact plate; 7. Contact unit; 71. Second contact plate; 72. Third contact plate; 73. Bidirectional spring telescopic tube; 74. Stop block; 75. Connecting telescopic tube; 8. Squeezing unit; 81. Sponge; 82. Fourth contact plate; 9. Hollowed-out groove ring; 10. Protective arc plate; 11. Pulling unit; 111. Pulling ring; 112. Mounting rod; 113. Flexible spring. Detailed Implementation

[0033] 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, and 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.

[0034] like Figures 1 to 9 As shown, the present invention provides a wall coating structure for building construction, including a handle 1, a pulling unit 11 fixedly connected to one end of the handle 1, a fixing unit 2 fixedly connected to the end of the pulling unit 11 away from the handle 1, a second fixing plate 3 fixedly connected to the end of the fixing unit 2 away from the pulling unit 11, a limiting unit 4 fixedly connected to the inner wall of the end of the second fixing plate 3 away from the fixing unit 2, a hollow groove ring 9 movably engaged with the inner wall of the limiting unit 4, an abutting unit 7 movably connected inside the limiting unit 4, an extrusion unit 8 located on the inner wall of the hollow groove ring 9 abutting the outer wall of the abutting unit 7, a coating cloth 5 fixedly connected to the outer wall of the hollow groove ring 9, and movable units 6 fixedly connected to the upper and lower ends of the side wall of the pulling unit 11 away from the handle 1, which abut against the abutting unit 7.

[0035] The above solution achieves control over the amount of paint discharged by setting up structures such as the pulling unit 11 and the moving unit 6; and prevents the paint from falling outward after being applied by setting up structures such as the limiting unit 4 and the contact unit 7, and also prevents the paint from sticking to the wall of the sponge 81 and the hollow groove ring 9, thus preventing the sponge 81 from conveying the paint to the inner wall of the coating cloth 5.

[0036] like Figure 1 , Figure 5As shown, the inner end of the second fixing plate 3 is fixedly connected to a protective arc plate 10 corresponding to the coating cloth 5. The side wall of the protective arc plate 10 away from the pulling unit 11 is smooth. The fixing unit 2 includes a first fixing plate 21 fixedly connected to the pulling unit 11 and the second fixing plate 3. The end of the first fixing plate 21 near the pulling unit 11 is fixedly connected to a pulley 22 that abuts against the movable unit 6.

[0037] The above solution is adopted as follows: through the cooperation of the first fixing plate 21 and the pulley 22, the first fixing plate 21 will stably limit the second connecting rope 63 to ensure its subsequent pulling and use, while the pulley 22 will guide the movement of the second connecting rope 63; through the design of the protective arc plate 10, when the coating cloth 5 is used to paint the building construction wall, the protective arc plate 10 can block and collect the paint during the painting process, preventing it from falling to the ground for subsequent cleaning.

[0038] like Figure 7 As shown, the limiting unit 4 includes a limiting plate 41 that engages with the hollowed-out groove ring 9. The inner wall of the limiting plate 41 is movably connected to the abutting unit 7. A connecting tube 42 is fixedly connected to the outer wall of the limiting plate 41 away from the squeezing unit 8. A first connecting rope 43 is fixedly connected inside the connecting tube 42. One end of the first connecting rope 43 away from the connecting tube 42 is fixedly connected to the movable unit 6.

[0039] The above solution is adopted: through the cooperation of the limiting plate 41 and the first connecting rope 43, when the moving unit 6 moves, it will pull the connecting tube 42 through the first connecting rope 43, so that the outer end of the connecting tube 42 abuts against the inner wall of the first telescopic plate 66, thereby achieving the sealing effect of the connecting tube 42 and preventing the paint on the inner wall of the hollow groove ring 9 from falling outward during the painting process.

[0040] like Figure 7 As shown, the movable unit 6 includes a second connecting rope 63 that is movably connected to the interior of the fixed unit 2 and the second fixed plate 3, and an mounting plate 65 and a second telescopic abutment plate 67 that are fixedly connected to the second fixed plate 3. The end of the second telescopic abutment plate 67 away from the second fixed plate 3 is fixedly connected to a first abutment plate 61 that abuts against the abutment unit 7. The end of the first abutment plate 61 away from the second telescopic abutment plate 67 is fixedly connected to a first telescopic abutment plate 66 that abuts against the limiting unit 4. The inner end of the first telescopic abutment plate 66 is fixedly connected to the outer wall of the limiting unit 4. The top and bottom of the first abutment plate 61 are both fixedly installed with baffles 62 that are movably connected to the limiting unit 4. A spring telescopic cylinder 64 is fixedly connected between the baffles 62 and the mounting plate 65. The side of the first abutment plate 61 that contacts the abutment unit 7 is provided with an angle.

[0041] The above solution involves the cooperation of the first contact plate 61 and the second telescopic contact plate 67. When the pulling unit 11 pulls the second connecting rope 63, the second connecting rope 63 will pull the first contact plate 61 through the baffle 62. At this time, due to the restriction of the second telescopic contact plate 67 and the spring telescopic cylinder 64, the first contact plate 61 will move horizontally and squeeze the second contact plate 71, thus facilitating the subsequent use of the second contact plate 71 to squeeze the material out of the extrusion unit 8. At the same time, when the first contact plate 61 moves, it will pull the first connecting rope 43 to make the outer end of the connecting tube 42 abut against the inner wall of the first telescopic contact plate 66, thereby achieving the sealing effect of the opening of the connecting tube 42 through the first telescopic contact plate 66.

[0042] like Figure 7 , Figure 8 As shown, the contact unit 7 includes a second contact plate 71 that is movably connected to the limiting unit 4. The inner end of the second contact plate 71 is fixedly connected to a third contact plate 72 located inside the hollow groove ring 9. The inner walls of the two third contact plates 72 are fixedly connected to bidirectional spring telescopic tubes 73. The outer wall of the middle end of the bidirectional spring telescopic tube 73 is fixedly installed with four stops 74 that are in contact with the pressing unit 8 at equal angles. The upper and lower ends of the third contact plate 72 near the side wall of the limiting unit 4 are fixedly installed with connecting telescopic tubes 75 that are connected to the limiting unit 4.

[0043] The above solution involves the cooperation of the second contact plate 71 and the connecting telescopic tube 75. When the first contact plate 61 moves towards the pulling unit 11, it will squeeze the outer wall of the second contact plate 71. The second contact plate 71 will cause the third contact plate 72 to be squeezed inward inside the hollow groove ring 9. The coating material will flow out to the outer wall of the coating cloth 5 through the squeezing unit 8. The coating material is applied by squeezing, and the amount of coating material is controlled. At the same time, the stop block 74 and the connecting telescopic tube 75 will ensure that the sponge 81 will not rotate when the third contact plate 72 squeezes the squeezing unit 8. This prevents the sponge 81 from rotating when the coating cloth 5 rotates, thus preventing the coating material from solidifying and sticking to the wall of the sponge 81 in contact with the hollow groove ring 9.

[0044] like Figure 8 As shown, the extrusion unit 8 includes a sponge 81 that abuts against the inner wall of the hollow groove ring 9. The inner wall of the sponge 81 is fixedly installed with four fourth abutting plates 82 that abut against the abutting unit 7 at equal angles. Both ends of the fourth abutting plates 82 are provided with oblique angles that abut against the third abutting plate 72.

[0045] Using the above scheme: through the cooperation of the sponge 81 and the fourth contact plate 82 structure, when the third contact plate 72 is squeezed inward, the sponge 81 will be squeezed by the fourth contact plate 82, so that the coating inside the sponge 81 can be immersed into the outer wall of the coating cloth 5 through the hollow groove ring 9.

[0046] like Figure 5 , Figure 7 As shown, the pulling unit 11 includes a mounting rod 112 fixedly connected to the handle 1 and the fixed unit 2. A pulling ring 111 is sleeved on the outer wall of the mounting rod 112 away from the handle 1. The pulling ring 111 is fixedly connected to the movable unit 6 at the other end away from the handle 1. A flexible spring 113 is movably sleeved on the outer wall of the mounting rod 112. The two ends of the flexible spring 113 are fixedly connected to the pulling ring 111 and the handle 1, respectively. The side wall of the second contact plate 71 that contacts the movable unit 6 is provided with an angle. The third contact plate 72 is in the shape of a frustum.

[0047] The above solution is adopted: by limiting the angle of the second contact plate 71 and the shape of the third contact plate 72, the subsequent pressing and squeezing of the first contact plate 61 and the fourth contact plate 82 will be facilitated. The connection of the coating structure adopts a bolt connection method, which facilitates the subsequent cleaning of its interior. By cooperating with the pull ring 111 and the flexible spring 113, the pull ring 111 is pulled towards the handle 1, which drives the second connecting rope 63 to move at the same time. This will facilitate the subsequent pressing and squeezing. The flexible spring 113 will limit and buffer the movement of the pull ring 111.

[0048] This application also proposes a method for painting walls during building construction, wherein the method for painting walls during building construction is as follows:

[0049] S1. Place the front end of the coating structure into the paint bucket and press down to allow the paint to enter the hollow groove ring 9 from the inside of the connecting pipe 42 and immerse it into the inside of the sponge 81 to store the paint.

[0050] S2. Move the pull ring 111 backward. The pull ring 111 will drive the second connecting rope 63 to move together inside the first fixed plate 21 and the second fixed plate 3. The second connecting rope 63 will pull the first abutment plate 61 through the baffle 62 to abut the outer end of the second abutment plate 71, so that the second abutment plate 71 moves into the limit plate 41. As the first abutment plate 61 moves, the first connecting rope 43 will pull the connecting tube 42 so that its outer end abuts the inner wall of the first telescopic abutment plate 66, thereby achieving closure.

[0051] S3. When the second contact plate 71 is pressed by the first contact plate 61 and moves inside the hollow groove ring 9, the second contact plate 71 will cause the third contact plate 72 to contact the four fourth contact plates 82, so that it presses the sponge 81 with paint. After being pressed, the paint inside the sponge 81 will enter the outer wall of the coating cloth 5 through the hollow groove ring 9. When the coating cloth 5 is applying paint, the sponge 81 will be limited by the four blocks 74, so that it cannot rotate, ensuring the stable position of the sponge 81 inside the hollow groove ring 9.

[0052] S4. The worker's palm is positioned on the handle 1, and the thumb hooks onto the inner wall of both ends of the pull ring 111. The worker pulls the pull ring 111 towards the handle 1 using the thumb. The amount of paint discharged from the coating cloth 5 is controlled by the continuous movement of the distance between the pull ring 111 and the handle 1.

[0053] S5. During use, when the coating cloth 5 of the coating device is applied to the wall, the protective arc plate 10 will be located directly below the coating cloth 5 and the wall, and will move downward together with the movement of the second fixing plate 3.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wall coating structure for building construction, comprising a handle (1), characterized in that: One end of the handle (1) is fixedly connected to a pulling unit (11), and the end of the pulling unit (11) away from the handle (1) is fixedly connected to a fixing unit (2). The end of the fixing unit (2) away from the pulling unit (11) is fixedly connected to a second fixing plate (3). The inner wall of the end of the second fixing plate (3) away from the fixing unit (2) is fixedly connected to a limiting unit (4). The inner wall of the limiting unit (4) is movably engaged with a hollow groove ring (9). The inside of the limiting unit (4) is movably connected to a contact unit (7). The outer wall of the contact unit (7) is contacted by a squeezing unit (8) located on the inner wall of the hollow groove ring (9). The outer wall of the hollow groove ring (9) is fixedly connected to a coating cloth (5). The upper and lower ends of the side wall of the pulling unit (11) away from the handle (1) are both fixedly connected to movable units (6) that are in contact with the contact unit (7). The active unit (6) includes a second connecting rope (63) that is movably connected to the fixed unit (2) and the second fixed plate (3), and an installation plate (65) and a second telescopic abutment plate (67) that are fixedly connected to the second fixed plate (3). The end of the second telescopic abutment plate (67) away from the second fixed plate (3) is fixedly connected to a first abutment plate (61) that abuts against the abutment unit (7). The end of the first abutment plate (61) away from the second telescopic abutment plate (67) is fixedly connected to a first telescopic abutment plate (66) that abuts against the limiting unit (4). The inner end of the first telescopic abutment plate (66) is fixedly connected to the outer wall of the limiting unit (4). The top and bottom of the first abutment plate (61) are both fixedly installed with baffles (62) that are movably connected to the limiting unit (4). A spring telescopic cylinder (64) is fixedly connected between the baffle (62) and the installation plate (65). The side of the first abutment plate (61) that contacts the abutment unit (7) is provided with an angle. The extrusion unit (8) includes a sponge (81) that abuts against the inner wall of the hollow groove ring (9). The inner wall of the sponge (81) is fixedly installed with four fourth abutting plates (82) that abut against the abutting unit (7). Both ends of the fourth abutting plate (82) are provided with oblique angles that abut against the third abutting plate (72). The pulling unit (11) includes a mounting rod (112) fixedly connected to the handle (1) and the fixing unit (2). A pulling ring (111) is sleeved on the outer wall of the mounting rod (112) away from the handle (1). The pulling ring (111) is fixedly connected to the movable unit (6) at the other end away from the handle (1). A flexible spring (113) is movably sleeved on the outer wall of the mounting rod (112). The two ends of the flexible spring (113) are fixedly connected to the pulling ring (111) and the handle (1) respectively.

2. The wall coating structure for building construction according to claim 1, characterized in that: The inner end of the second fixing plate (3) is fixedly connected to a protective arc plate (10) corresponding to the coating cloth (5), and the side wall of the protective arc plate (10) away from the pulling unit (11) is smooth.

3. The wall coating structure for building construction according to claim 1, characterized in that: The fixing unit (2) includes a first fixing plate (21) that is fixedly connected to the pulling unit (11) and the second fixing plate (3). The first fixing plate (21) has a pulley (22) that is in contact with the moving unit (6) at one end near the pulling unit (11).

4. The wall coating structure for building construction according to claim 1, characterized in that: The limiting unit (4) includes a limiting plate (41) that engages with the hollow groove ring (9). The inner wall of the limiting plate (41) is movably connected to the contact unit (7). A connecting tube (42) is fixedly connected to the outer wall of the limiting plate (41) away from the extrusion unit (8). A first connecting rope (43) is fixedly connected inside the connecting tube (42). One end of the first connecting rope (43) away from the connecting tube (42) is fixedly connected to the movable unit (6).

5. The wall coating structure for building construction according to claim 1, characterized in that: The contact unit (7) includes a second contact plate (71) movably connected to the limiting unit (4). The inner end of the second contact plate (71) is fixedly connected to a third contact plate (72) located inside the hollow groove ring (9). The inner walls of the two third contact plates (72) are fixedly connected to bidirectional spring telescopic tubes (73). The outer wall of the middle end of the bidirectional spring telescopic tube (73) is fixedly installed with four stops (74) that are in contact with the extrusion unit (8). The upper and lower ends of the side wall of the third contact plate (72) near the limiting unit (4) are fixedly installed with connecting telescopic tubes (75) that are connected to the limiting unit (4).

6. The wall coating structure for building construction according to claim 5, characterized in that: The second contact plate (71) has an angled opening on one side wall that contacts the movable unit (6), and the third contact plate (72) has a frustum shape.

7. A method for painting walls during building construction, characterized in that: The method for painting walls used in building construction is as follows: S1. Place the front end of the coating structure in the paint bucket and press down so that the paint enters from the inside of the connecting pipe (42) into the inside of the hollow groove ring (9) and is immersed into the inside of the sponge (81) to store the paint. S2. Move the pull ring (111) backward. The pull ring (111) will drive the second connecting rope (63) to move together inside the first fixed plate (21) and the second fixed plate (3). The second connecting rope (63) will pull the first abutment plate (61) through the baffle (62) to abut the outer end of the second abutment plate (71), so that the second abutment plate (71) moves into the limit plate (41). With the movement of the first abutment plate (61), the first connecting rope (43) will pull the connecting tube (42) so that its outer end abuts the inner wall of the first telescopic abutment plate (66) to achieve closure. S3. When the second contact plate (71) is pressed by the first contact plate (61) and moves inside the hollow groove ring (9), the second contact plate (71) will cause the third contact plate (72) to contact the four fourth contact plates (82), so that it presses the sponge (81) with paint. After pressing, the sponge (81) will allow the paint inside to enter the outer wall of the coating cloth (5) through the hollow groove ring (9). When the coating cloth (5) is applying paint, the sponge (81) will be limited by the four blocks (74) so ​​that it cannot rotate, ensuring the stable position of the sponge (81) inside the hollow groove ring (9). S4. The worker's palm is positioned on the handle (1), and the thumb hooks onto the inner wall of both ends of the pull ring (111). The worker uses the thumb to pull the pull ring (111) towards the handle (1). The worker controls the amount of paint discharged from the coating cloth (5) by the continuous movement of the distance between the pull ring (111) and the handle (1). S5. During use, when the coating cloth (5) of the coating device is used to coat the wall, the protective arc plate (10) will be located directly below the coating cloth (5) and the wall, and will move downward together with the movement of the second fixing plate (3).

Images