A wall painting device for architectural decoration

Abstract

The present application relates to a wall paint painting device for building decoration, belonging to the technical field of building decoration, and includes a box body, a holding rod, and a coating roller. A conveying assembly for conveying paint and connected to the coating roller is provided on the box body. A dust suction roller for adsorbing impurities is rotatably provided on the holding rod. Both the dust suction roller and the coating roller are pressed against the wall surface. The dust suction roller is used to adsorb the dust on the wall surface, and the coating roller is used to apply paint to the wall surface after dust suction. A collection mechanism connected to the dust suction roller and used for collecting impurities is provided on the holding rod. In this application, the dust suction roller first adsorbs the dust on the wall surface, and then the coating roller applies paint to the wall surface after dust suction, thereby saving the time spent on applying paint and improving the painting efficiency. Moreover, by the support component formed by pressing the coating roller and the dust suction roller against the wall surface, the painting efficiency is further improved.

Description

Technical Field

[0001] This application relates to the technical field of building decoration, and in particular to a wall paint painting device for building decoration. Background Technique

[0002] Building decoration is the abbreviation of. Building decoration is a process of various treatments on the inner and outer surfaces and spaces of buildings by using decorative materials or ornaments to protect the main structure of the building, improve the service function of the building, and beautify the building.

[0003] Roll coating uses a rotating roller as the carrier of the paint. The paint forms a wet film with a certain thickness on the surface of the rotating roller, and then, by means of the contact between the rotating roller and the object to be painted during rotation, the paint is applied to the surface of the object to be painted. The roller used for roll coating is a hollow cylinder with a small diameter, and a coating made of a material with strong adsorption such as synthetic fiber or wool is usually provided on the surface layer, and the coating is used to adsorb the paint and then smear it on the wall.

[0004] When applying the paint, it is necessary to manually hold the roller body and place it in the paint so that the paint soaks into the roller body, and then move the roller body to smear the paint on the wall. Moreover, some dust is easily adhered to the wall before applying the paint, and it takes a lot of time to clean these impurities and apply the paint, thus reducing the application efficiency. Summary of the Invention

[0005] In order to improve the application efficiency, this application provides a wall paint painting device for building decoration.

[0006] A wall paint painting device for building decoration provided by this application adopts the following technical solutions:

[0007] A wall paint painting device for building decoration includes a box body filled with paint, a holding rod arranged on the box body, a painting roller rotatably arranged on the holding rod and used for applying paint, a conveying component arranged on the box body and connected to the painting roller and used for conveying paint, a dust suction roller rotatably arranged on the holding rod and used for adsorbing impurities, both the dust suction roller and the painting roller are pressed against the wall, the dust suction roller is used for adsorbing the dust on the wall and the painting roller is used for applying paint to the wall after dust suction, and a collection mechanism connected to the dust suction roller and used for collecting impurities is arranged on the holding rod.

[0008] By adopting the above technical solution, the staff holds the holding rod, so that both the dust suction roller and the coating roller are pressed against the wall surface. The dust suction roller adsorbs the dust on the wall surface, and the collection mechanism collects the dust. Moving the holding rod drives the coating roller to move and apply paint to the wall surface after dust suction, and the conveying component starts to supply paint to the coating roller; first, the dust suction roller adsorbs the dust on the wall surface, and then the coating roller applies paint to the wall surface after dust suction, thus saving the time spent on applying paint and improving the coating efficiency. Moreover, by pressing the coating roller and the dust suction roller against the wall surface to support the component, the probability of fatigue when holding a single roller for coating is reduced, further improving the coating efficiency; at the same time, the convenience of maintaining a certain pressure on the coating roller is also improved, and the coating effect is improved.

[0009] Optionally, the conveying component includes:

[0010] A delivery pump, which is arranged on the box body and communicated with the inside of the box;

[0011] A delivery hose, which is arranged on the delivery pump and communicated with the coating roller and is used for delivering paint.

[0012] By adopting the above technical solution, the delivery pump is started, and the paint enters the coating roller through the delivery hose for applying paint, thus realizing the feeding of the paint.

[0013] Optionally, the coating roller includes:

[0014] A roller body, which is arranged on the holding rod and has a delivery cavity communicated with the delivery hose inside;

[0015] A paint sleeve, which is rotatably sleeved on the roller body;

[0016] A coating layer, which is arranged on the outer side wall of the paint sleeve and is used for adsorbing paint to apply paint to the wall surface. A plurality of first material passing holes and second material passing holes are respectively formed on the paint sleeve and the roller body, so that the paint located in the delivery cavity enters the coating layer through the first material passing holes and the second material passing holes.

[0017] By adopting the above technical solution, the paint enters the delivery cavity, and then the paint enters the coating layer through the first material passing holes and the second material passing holes. After being extruded, the coating layer applies the paint to the wall surface, thus improving the uniformity of paint application and the coating effect; moreover, the roller body is fixed on the holding rod and communicated with the delivery pipe, so there is no need to rotatably connect the roller body with the delivery pipe, reducing the difficulty of avoiding using rotary seals in production, thus reducing the difficulty of manufacturing the painting device and the production cost of the painting device.

[0018] Optionally, a positioning mechanism for positioning the paint sleeve is arranged on the holding rod, and the positioning mechanism includes:

[0019] A positioning rod, which is slidably arranged on the holding rod;

[0020] A positioning spring, with both ends of the positioning spring connected to the holding rod and the positioning rod respectively. The positioning rod is inserted and installed on the coating sleeve under the action of the positioning spring for positioning, and the first material through hole and the second material through hole are mutually misaligned;

[0021] A pushing component, which is arranged on the holding rod and is used to push the positioning rod to move so that the positioning rod is separated from the coating sleeve.

[0022] By adopting the above technical solution, when the coating needs to be applied, the pushing component is activated to push the positioning rod away from the coating sleeve and separate it from the coating sleeve. Therefore, the coating sleeve can rotate freely; and

[0023] After the coating application is completed, the pushing component is released, and the positioning rod is pressed against the coating sleeve under the action of the positioning spring. Then, when the coating sleeve is rotated, the positioning rod can be inserted and installed on the coating sleeve for positioning, so that the first material through hole and the second material through hole are mutually misaligned, thereby blocking the coating. Therefore, the probability of coating loss after the coating application is stopped is reduced, and the waste of the coating is reduced while applying the coating.

[0024] Optionally, the pushing component includes:

[0025] A push block, which is slidably arranged on the holding rod and presses against the positioning rod and is used to push the positioning rod to move;

[0026] A pushing screw rod, which is rotatably arranged on the holding rod and is threadedly connected to the push block.

[0027] By adopting the above technical solution, the rotation of the pushing screw rod drives the push block to move, and the movement of the push block pushes the positioning rod to move, thereby realizing the movement of the positioning rod.

[0028] Optionally, a plurality of through holes for dust to pass through are formed in the dust suction roller, and the collection mechanism includes:

[0029] A collection pipe, which is arranged on the holding rod and is communicated with the through holes;

[0030] A collection cylinder, which is arranged on the holding rod and is communicated with the collection pipe;

[0031] A blower, which is arranged at one end of the collection cylinder far away from the collection pipe and enables the dust to pass through the through holes;

[0032] A collection component, which is arranged on the collection cylinder and is used to collect the dust passing through the through holes.

[0033] By adopting the above technical solution, when the fan starts, dust enters the collection component through the through holes and the collection pipe for collection, thereby achieving the collection of dust.

[0034] Optionally, the collection component includes:

[0035] A fixed pipe, which is arranged on the holding rod and communicated with the collection pipe, and the collection cylinder is threadedly connected to the fixed pipe;

[0036] A collection cloth bag, which is placed on the collection cylinder, and the fixed pipe and the collection cylinder cooperate to clamp the collection cloth bag for positioning.

[0037] By adopting the above technical solution, dust enters the collection cloth bag through the collection pipe and the fixed pipe for collection, and air is output through the collection cloth bag. When cleaning is required, the collection cylinder can be unscrewed to remove the collection cylinder and the collection cloth bag for cleaning. After cleaning, the collection cloth bag is put into the collection cylinder, so that the mouth of the collection cloth bag is turned over to cover the port of the collection cylinder, and then the collection cylinder is screwed onto the fixed pipe. The collection cylinder and the fixed pipe cooperate to clamp the collection cloth bag, thereby facilitating the replacement and fixation of the collection cloth bag, improving the convenience of replacing the collection cloth bag, and improving the coating efficiency.

[0038] Optionally, a moving plate is slidably arranged on the holding rod, a communicating pipe is rotatably arranged on the moving plate, a positioning ring is arranged on the communicating pipe, the fan is arranged on the moving plate and communicated with the inside of the communicating pipe, and the collection cylinder is threadedly connected to the communicating pipe and abuts against the positioning ring for positioning.

[0039] By adopting the above technical solution, turning the positioning ring drives the communicating pipe and the moving plate away from the collection cylinder, so that the communicating pipe is separated from the collection cylinder. Then, by continuing to rotate the collection cylinder, the collection cylinder can be removed from the fixed pipe. Then, the collection cloth bag is replaced. Next, the collection cylinder is threadedly connected to the fixed pipe. Then, the moving plate is pushed to drive the communicating pipe close to the collection cylinder, and the positioning ring is rotated to drive the communicating pipe to be threadedly connected to the collection cylinder, and the collection cylinder abuts against the positioning ring for positioning. Therefore, the fan will not be removed when the collection cylinder is removed, thereby improving the convenience during the installation of the fan and the replacement of the collection cylinder.

[0040] Optionally, a drying box is detachably arranged on the fixed pipe, and a desiccant for drying is contained in the drying box.

[0041] By adopting the above technical solution, the desiccant is used to absorb the moisture entering the collection cloth bag, thereby reducing the caking of dust on the collection cloth bag and blocking the air circulation. Therefore, the collection effect of dust is improved.

[0042] Optionally, an installation rack for placing the holding rod is arranged on the box body, and rollers for facilitating movement are rotatably arranged on the box body.

[0043] By adopting the above technical solution, the mounting bracket is used to place the holding rod, and the rollers facilitate the movement of the box body, thereby improving the convenience of moving the box body, and thus improving the convenience during application and the application efficiency.

[0044] In summary, the present application includes at least one of the following beneficial technical effects:

[0045] First, the dust suction roller adsorbs dust on the wall surface, and then the coating roller applies the coating to the wall surface after dust suction, thereby saving the time spent on applying the coating and improving the application efficiency. Moreover, by pressing the coating roller and the dust suction roller against the wall surface to provide supporting component forces, the application efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic three-dimensional structure diagram of the present application;

[0047] Figure 2 is an exploded view of the coating roller in the present application;

[0048] Figure 3 is a schematic structure diagram of the positioning mechanism in the present application, in which the first mounting block is partially sectioned;

[0049] Figure 4 is Figure 3 an enlarged view of part A in

[0050] Figure 5 is an exploded view of the collection mechanism in the present application.

[0051] Reference numerals: 1, box body; 11, rollers; 12, mounting bracket; 13, holding rod; 14, dust suction roller; 15, through hole; 16, first mounting rod; 17, second mounting rod; 2, coating roller; 21, roller body; 211, second material passing hole; 22, coating sleeve; 221, first material passing hole; 23, coating layer; 24, first mounting block; 25, second mounting block; 26, rotating groove; 27, sliding groove; 28, accommodating groove; 29, mounting groove; 3, conveying assembly; 31, conveying pump; 32, conveying hose; 4, positioning mechanism; 41, positioning rod; 42, positioning spring; 43, pushing assembly; 44, push block; 45, pushing screw; 46, positioning block; 47, pushing surface; 48, positioning groove; 5, collection mechanism; 51, collection pipe; 52, collection cylinder; 53, fan; 54, fixing plate; 55, moving plate; 56, mounting hole; 57, connecting pipe; 58, positioning ring; 6, collection assembly; 61, fixed pipe; 62, collection cloth bag; 63, threaded pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] The following further describes the present application in detail with reference to the attached Figures 1-5 drawings.

[0053] An embodiment of the present application discloses a wall paint brushing device for building decoration.

[0054] Referring to Figure 1 , the wall paint brushing device for building decoration includes a box body 1 filled with paint. A roller 11 rolling on the ground is rotatably installed at the bottom end of the box body 1. A holding rod 13 is installed on the box body 1. A coating roller 2 for applying paint is rotatably arranged on the holding rod 13. A dust suction roller 14 for adsorbing impurities is also rotatably installed on the holding rod 13. The staff holds the holding rod 13 and drives the dust suction roller 14 and the coating roller 2 to press against the wall. The dust suction roller 14 adsorbs the dust on the wall, and then the coating roller 2 moves to apply paint to the wall. A mounting rack 12 is fixedly installed on the upper surface of the box body 1. The staff can place the coating roller 2 and the dust suction roller 14 on the mounting rack 12 for placement and positioning by holding the holding rod 13. A conveying assembly 3 connected to the coating roller 2 and used for conveying paint is arranged on the box body 1. A collecting mechanism 5 connected to the dust suction roller 14 and used for collecting impurities is also arranged on the holding rod 13.

[0055] Referring to Figure 1 , the conveying assembly 3 includes a conveying pump 31 and a conveying hose 32. The conveying pump 31 is fixedly installed on the outer side wall of the box body 1 and is communicated with the inside of the box body 1. The holding rod 13 has an arc-shaped strip structure. First mounting rods 16 and second mounting rods 17 are respectively fixedly installed at both ends of the holding rod 13. The coating roller 2 is rotatably installed on the first mounting rod 16, and the dust suction roller 14 is rotatably installed on the second mounting rod 17. When the staff holds the holding rod 13 between the first mounting rod 16 and the second mounting rod 17 for coating, both the dust suction roller 14 and the coating roller 2 are in a horizontal state and their axes are parallel, and the length directions of both the first mounting rod 16 and the second mounting rod 17 are parallel to the axis of the dust suction roller 14.

[0056] Referring to Figure 1 and Figure 2 , the coating roller 2 includes a roller body 21, a paint sleeve 22 and a coating 23. First mounting blocks 24 and second mounting blocks 25 are fixedly installed on the side wall of the first mounting rod 16 away from the holding rod 13, and the first mounting blocks 24 and the second mounting blocks 25 are arranged at intervals along the length direction of the first mounting rod 16. The roller body 21 is fixedly installed on the side walls of the first mounting block 24 and the second mounting block 25 facing each other. A conveying cavity is formed inside the roller body 21. The conveying hose 32 is fixedly installed on the conveying pump 31, and the conveying hose 32 is fixedly connected to the roller body 21 and communicated with the inside of the conveying cavity. At the same time, the conveying hose 32 is made of a soft material, and the material can be soft plastic.

[0057] Referring to Figure 1 and Figure 2, a rotating groove 26 is coaxially formed on the outer sidewall of the roller body 21, and one end of the rotating groove 26 close to the first mounting block 24 penetrates the roller body 21. The coating sleeve 22 is rotatably sleeved on the rotating groove 26 and its outer sidewall extends outside the rotating groove 26. A plurality of first material passing holes 221 are arranged on the sidewall of the coating sleeve 22 in an array along the radial direction and the axis of the coating sleeve 22. A plurality of second material passing holes 211 are arranged on the sidewall of the rotating groove 26 in an array along the radial direction and the axis of the rotating groove 26. The plurality of first material passing holes 221 and the plurality of second material passing holes 211 are arranged in one-to-one correspondence. At the same time, the second material passing holes 211 are communicated with the conveying cavity. The coating layer 23 is coaxially and integrally arranged on the outer sidewall of the coating sleeve 22, and both ends of the coating layer 23 extend to be flush with both ends of the coating sleeve 22. The coating layer 23 is made of a material with strong adsorption such as synthetic fiber or wool.

[0058] Refer to Figure 1 and Figure 2 , grasp the holding rod 13 so that both the coating layer 23 and the dust suction roller 14 are pressed against the wall surface. Therefore, the dust suction roller 14 absorbs dust. At the same time, the conveying pump 31 is started, and the coating material enters the coating layer 23 through the conveying hose 32, the conveying cavity, the second material passing holes 211 and the first material passing holes 221. The coating layer 23 can adsorb the coating material. After squeezing the coating layer 23, the coating layer 23 can be smeared on the wall surface. Then, push the holding rod 13 to move, driving the coating layer 23 and the dust suction roller 14 to rotate and move. Therefore, the coating layer 23 smears the coating material on the wall surface after dust suction.

[0059] Refer to Figure 2 and Figure 3 , a positioning mechanism 4 for positioning the coating sleeve 22 is arranged on the first mounting block 24.

[0060] Refer to Figure 3 and Figure 4, the positioning mechanism 4 includes a positioning rod 41, a positioning spring 42 and a pushing component 43. A sliding groove 27 is formed on the side wall of the first mounting block 24 close to the paint sleeve 22. At the same time, a receiving groove 28 is formed on the side wall of the first mounting block 24 adjacent to the sliding groove 27 and away from the axis of the paint sleeve 22, and the receiving groove 28 communicates with the sliding groove 27. An installation groove 29 is formed on the side wall of the receiving groove 28 close to the paint sleeve 22. The installation groove 29 does not communicate with the sliding groove 27 and communicates with the side wall of the first mounting block 24 where the receiving groove 28 is formed; the positioning rod 41 is slidably installed on the sliding groove 27 along the axis direction of the paint sleeve 22, and the positioning rod 41 extends into the receiving groove 28. One end of the positioning spring 42 is fixedly installed on the side wall of the receiving groove 28 away from the paint sleeve 22, and the other end of the positioning spring 42 is fixedly connected to the end of the positioning rod 41 away from the paint sleeve 22. A positioning groove 48 is formed on the side wall of the paint sleeve 22 close to the positioning rod 41. The positioning rod 41 is inserted into the positioning groove 48 under the action of the positioning spring 42 to position the paint sleeve 22. At this time, the first material passage hole 221 and the second material passage hole 211 are misaligned with each other, so as to block the paint.

[0061] Refer to Figure 3 and Figure 4 , the pushing component 43 is arranged on the installation groove 29, and the pushing component 43 is used to push the positioning rod 41 to move so that the positioning rod 41 is separated from the positioning groove 48. The pushing component 43 includes a pushing block 44 and a pushing screw 45. The pushing block 44 is slidably installed on the installation groove 29 along the direction perpendicular to the sliding direction of the positioning rod 41. A positioning block 46 extending to one side of the pushing block 44 is integrally arranged on the positioning rod 41. The pushing block 44 and the positioning block 46 are pressed against each other and are provided with an inclined pushing surface 47. At the same time, the movement of the pushing block 44 can push the positioning rod 41 to be separated from the positioning groove 48 through the pushing surface 47; the pushing screw 45 is rotatably installed on the side wall of the installation groove 29 close to the positioning rod 41, and the pushing screw 45 is threadedly connected to the pushing block 44. At the same time, the rotation of the pushing screw 45 drives the pushing block 44 to move.

[0062] Refer to Figure 3 and Figure 4, Rotating the driving screw 45 drives the pushing block 44 to approach the positioning rod 41. The pushing block 44 pushes the positioning block 46 and the positioning rod 41 away from the positioning groove 48 through the pushing surface 47. When the pushing block 44 presses against the side wall of the mounting groove 29 close to the positioning rod 41, the positioning rod 41 disengages from the positioning groove 48. Therefore, the paint sleeve 22 and the coating 23 can rotate freely. When it is necessary to position the paint sleeve 22, rotating the driving screw 45 drives the pushing block 44 away from the positioning rod 41. Therefore, the positioning rod 41 moves back under the action of the positioning spring 42. The positioning rod 41 presses against the paint sleeve 22. Then rotate the paint sleeve 22 so that the positioning rod 41 is inserted and installed in the positioning groove 48 under the action of the positioning spring 42 to position the paint sleeve 22. Therefore, the first material passage hole 221 and the second material passage hole 211 are misaligned, thereby realizing the blocking of the paint and reducing the loss of the paint.

[0063] Refer to Figure 1 and Figure 5 , A dust suction cavity is provided inside the dust suction roller 14, and a plurality of through holes 15 are provided on the outer side wall of the dust suction roller 14 along the axis and the radial direction of the dust suction roller 14 for dust to pass through; The collection mechanism 5 includes a collection pipe 51, a collection cylinder 52, a fan 53 and a collection assembly 6; A fixing plate 54 and a moving plate 55 are installed on the side wall of the first mounting rod 16 away from the dust suction roller 14, and the fixing plate 54 and the moving plate 55 are arranged along the axis of the dust suction roller 14. At the same time, the moving plate 55 can move along the axis of the dust suction roller 14, and a mounting hole 56 is provided on the moving plate 55.

[0064] Refer to Figure 1 and Figure 5 , The collection assembly 6 is arranged on the fixing plate 54 and the moving plate 55, and the collection assembly 6 is used to collect the dust passing through the through holes 15; The collection assembly 6 includes a fixed pipe 61 and a collection cloth bag 62. The fixed pipe 61 is fixedly installed at one end of the fixing plate 54 away from the first mounting rod 16; One end of the collection pipe 51 passes through one end of the dust suction roller 14 and is communicated with the dust suction cavity. At the same time, the collection pipe 51 is rotatably connected to the dust suction roller 14, and the end of the collection pipe 51 away from the dust suction roller 14 is fixedly connected to the fixed pipe 61. A threaded pipe 63 is coaxially and fixedly installed at the end of the fixed pipe 61 away from the collection pipe 51, and the inside of the threaded pipe 63 is communicated with the inside of the collection pipe 51, and the diameter of the threaded pipe 63 is smaller than the outer diameter of the fixed pipe 61; A communicating pipe 57 is rotatably installed on the side wall of the moving plate 55 close to the threaded pipe 63, and the axes of the communicating pipe 57, the threaded pipe 63 and the mounting hole 56 coincide. At the same time, a positioning ring 58 is coaxially and fixedly installed on the outer side wall of the communicating pipe 57.

[0065] Refer to Figure 1 and Figure 5, both ends of the collection cylinder 52 are threadedly connected to the outer side walls of the threaded pipe 63 and the opposite end of the communicating pipe 57, and the collection cylinder 52 is pressed against the positioning ring 58 for positioning. At the same time, the outer diameter of the collection cylinder 52 is smaller than the outer diameter of the positioning ring 58; the fan 53 is fixedly installed on the mounting hole 56, and the fan 53 is located inside the communicating pipe 57. When the fan 53 is started, air and dust enter the collection cylinder 52 through the through hole 15 and the collection pipe 51.

[0066] Referring to Figure 1 and Figure 5 , the collection cloth bag 62 is placed inside the collection cylinder 52, and the port of the collection cloth bag 62 is turned over to cover the port of the collection cylinder 52. Then, the collection cylinder 52 is threadedly connected to the threaded pipe 63, and both the collection cylinder 52 and the fixed pipe 61 are pressed tightly against the collection cloth bag 62. Therefore, the port of the collection cylinder 52 and the fixed pipe 61 cooperate to clamp the collection cloth bag 62. When the fan 53 is started, air and dust enter the collection cloth bag 62 through the through hole 15 and the collection pipe 51 for storage, thereby realizing the collection of dust; a drying box is snap-fitted and installed on the inner side wall of the fixed pipe 61, and a desiccant for absorbing moisture is contained in the drying box, thereby realizing the drying of the moisture entering the collection cloth bag.

[0067] Referring to Figure 1 and Figure 5 , when it is necessary to remove the collection cloth bag 62, turn the positioning ring 58 to drive the communicating pipe 57 to rotate away from the collection cylinder 52, so that the moving plate 55 moves to separate the communicating pipe 57 from the collection cylinder 52. Then, turn the collection cylinder 52 to separate it from the threaded pipe 63. Then, the collection cloth bag 62 can be removed for replacement. Then, the collection cloth bag 62 is placed inside the collection cylinder 52, and the mouth of the collection cloth bag 62 is turned over so that the mouth of the collection cloth bag 62 covers the port of the collection cylinder 52. Then, the collection cylinder 52 is threadedly connected to the threaded pipe 63, so that the port of the collection cylinder 52 and the fixed pipe 61 cooperate to clamp the collection cloth bag 62, and at the same time, the collection cylinder 52 is also positioned. Then, push the moving plate 55 to drive the communicating pipe 57 to press against one end of the collection cylinder 52 away from the threaded pipe 63, and turn the positioning ring 58 so that the communicating pipe 57 is threadedly connected to the collection cylinder 52, so that the collection cylinder 52 is pressed tightly against the positioning ring 58 for positioning, so as to realize the replacement of the collection cloth bag 62.

[0068] The working principle of the embodiment of the present application is:

[0069] Grasp the holding rod 13 to drive both the coating 23 and the dust suction roller 14 to press against the wall surface. Start the conveying pump 31, and the paint sequentially enters the coating 23 through the conveying hose 32, the second material passing hole 211, and the first material passing hole 221. At the same time, start the blower 53, and the dust on the wall surface enters the collection cloth bag 62 for collection, so as to clean the dust on the wall surface. Push the holding rod 13 to drive the dust suction roller 14 and the coating 23 to rotate and move. Therefore, the coating 23 moves to the wall surface after the dust suction by the dust suction roller 14, and the paint in the coating 23 is extruded and smeared on the wall surface, so as to realize smearing the paint on the wall surface, thereby improving the smearing efficiency and smearing effect.

[0070] After the smearing is completed, turn the pushing screw rod 45 to drive the push block 44 to move. The movement of the push block 44 causes the positioning rod 41 to move back and press against the paint sleeve 22. Then rotate the paint sleeve 22 so that the positioning rod 41 is inserted and installed into the positioning groove 48 for positioning. Therefore, the first material passing hole 221 and the second material passing hole 211 are misaligned with each other, thereby reducing the probability of paint loss. When it is necessary to smear the paint, turn the pushing screw rod 45 to drive the push block 44 to move and press against the installation groove 29. The movement of the push block 44 drives the positioning rod 41 to disengage from the positioning groove 48. Therefore, the coating 23 can rotate freely, so as to reduce the paint loss while realizing the smearing of the paint.

[0071] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A wall paint brushing device for building decoration, characterized in that: It includes a box body (1) filled with paint, a holding rod (13) arranged on the box body (1), and a coating roller (2) rotatably arranged on the holding rod (13) and used for applying paint. A conveying component (3) connected to the coating roller (2) and used for conveying paint is arranged on the box body (1). A dust suction roller (14) used for adsorbing impurities is rotatably arranged on the holding rod (13). Both the dust suction roller (14) and the coating roller (2) are pressed against the wall surface. The dust suction roller (14) is used for adsorbing dust on the wall surface, and the coating roller (2) is used for applying paint to the wall surface after dust suction. A collection mechanism (5) connected to the dust suction roller (14) and used for collecting impurities is arranged on the holding rod (13); The coating roller (2) includes: A roller body (21), the roller body (21) is arranged on the holding rod (13) and a conveying cavity communicating with a conveying hose (32) is opened inside; A paint sleeve (22), the paint sleeve (22) is rotatably sleeved on the roller body (21); A coating layer (23), the coating layer (23) is arranged on the outer side wall of the paint sleeve (22) and used for adsorbing paint to apply paint to the wall surface. A plurality of first paint passing holes (221) and second paint passing holes (211) are respectively opened on the paint sleeve (22) and the roller body (21), so that the paint located in the conveying cavity infiltrates into the coating layer (23) through the first paint passing holes (221) and the second paint passing holes (211); A positioning mechanism (4) for positioning the paint sleeve (22) is arranged on the holding rod (13), and the positioning mechanism (4) includes: A positioning rod (41), the positioning rod (41) is slidably arranged on the holding rod (13); A positioning spring (42), both ends of the positioning spring (42) are respectively connected to the holding rod (13) and the positioning rod (41). The positioning rod (41) is inserted and installed on the paint sleeve (22) under the action of the positioning spring (42) for positioning, and the first paint passing holes (221) and the second paint passing holes (211) are mutually misaligned; A pushing component (43), the pushing component (43) is arranged on the holding rod (13) and used for pushing the positioning rod (41) to move so that the positioning rod (41) is separated from the paint sleeve (22).

2. The wall paint brushing device for building decoration according to claim 1, characterized in that: The conveying component (3) includes: A conveying pump (31), the conveying pump (31) is arranged on the box body (1) and communicated with the inside of the box body (1); A conveying hose (32), the conveying hose (32) is arranged on the conveying pump (31) and communicated with the coating roller (2) and used for conveying paint.

3. The wall paint brushing device for building decoration according to claim 1, characterized in that: The pushing component (43) includes: A push block (44), the push block (44) is slidably arranged on the holding rod (13) and pressed against the positioning rod (41) and used for pushing the positioning rod (41) to move; The pushing screw rod (45) is rotatably arranged on the holding rod (13) and is threadedly connected to the pushing block (44).

4. The wall paint brushing device for architectural decoration according to claim 1, characterized in that: A plurality of through holes (15) for dust to pass through are formed in the dust suction roller (14), and the collection mechanism (5) includes: A collection pipe (51) which is arranged on the holding rod (13) and is communicated with the through hole (15); A collection cylinder (52) which is arranged on the holding rod (13) and is communicated with the collection pipe (51); A blower (53) which is arranged at one end of the collection cylinder (52) away from the collection pipe (51) and enables the dust to pass through the through hole (15); A collection assembly (6) which is arranged on the collection cylinder (52) and is used for collecting the dust passing through the through hole (15).

5. The wall paint brushing device for architectural decoration according to claim 4, characterized in that: The collection assembly (6) includes: A fixed pipe (61) which is arranged on the holding rod (13) and is communicated with the collection pipe (51), and the collection cylinder (52) is threadedly connected to the fixed pipe (61); A collection cloth bag (62) which is placed on the collection cylinder (52), and the fixed pipe (61) and the collection cylinder (52) cooperate to clamp the collection cloth bag (62) for positioning.

6. The wall paint brushing device for architectural decoration according to claim 5, characterized in that: A moving plate (55) is slidably arranged on the holding rod (13), a communicating pipe (57) is rotatably arranged on the moving plate (55), a positioning ring (58) is arranged on the communicating pipe (57), the blower (53) is arranged on the moving plate (55) and is internally communicated with the communicating pipe (57), and the collection cylinder (52) is threadedly connected to the communicating pipe (57) and abuts against the positioning ring (58) for positioning.

7. The wall paint brushing device for architectural decoration according to claim 5, characterized in that: A drying box is detachably arranged on the fixed pipe (61), and a desiccant for drying is contained in the drying box.

8. The wall paint brushing device for architectural decoration according to claim 1, characterized in that: An installation rack (12) for placing the holding rod (13) is arranged on the box body (1), and rollers (11) for facilitating movement are rotatably arranged on the box body (1).

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