Wall painting device and method for constructional engineering

Abstract

The invention discloses a wall painting device and method for constructional engineering, the device comprises a supporting unit, an adjusting unit, a painting unit, a rapid solidification unit for rapidly solidifying mortar, a cleaning unit for cleaning the painting unit, a driving unit, a moving unit and a controller, and the adjusting unit comprises an electric telescopic rod; the painting unit comprises a brush bucket and a movable blocking cover, and the rapid hardening unit comprises a sleeve, an air guide fan installed in the center of the interior of the sleeve, a heating wire installed in a cavity, an air passing groove formed in the support and communicated with the cavity and an exhaust hole formed in the side, close to the wall face, of the support. The movement of the support in the horizontal direction is achieved, then the brush bucket is driven to adjust the position, the distance between the brush bucket and the wall to be painted is controlled, the painting thickness is adjusted, meanwhile, the rapid hardening unit is arranged to accelerate evaporation of moisture in mortar, the drying speed is increased, the waiting time is shortened, and the overall construction progress is accelerated.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction painting devices, and more specifically, relates to a wall painting device and method for building engineering. Background Art

[0002] With the continuous advancement of modern construction engineering technology and the increasing requirements of people for the aesthetics of living environment, it is necessary to paint concrete mortar on the wall during the decoration of buildings. This is convenient for improving the strength of the wall on the one hand, and improving the waterproofness of the wall on the other hand. Therefore, a painting device is needed when painting concrete mortar.

[0003] The Chinese invention patent with patent application number CN202011343142.X discloses a wall plastering machine for construction, which includes: a frame, four support rods are installed on the frame, and a mounting plate is arranged between the four support rods; a first mounting frame is arranged on the mounting plate, a lifting mechanism is installed on the first mounting frame, and a smearing mechanism is arranged on the lifting mechanism. Through the cooperation of the lifting mechanism and the smearing mechanism, it is convenient to smear the wall surface, and the upper part of the wall surface can be smeared by moving the placement box to the right, so that the wall surface can be fully smeared, thereby improving the efficiency of wall smearing. The wall plastering machine still has defects. It cannot adjust the distance between the hopper and the wall surface, and after painting the mortar, the painted mortar may fall off due to humid weather, and the drying speed of the mortar cannot be accelerated.

[0004] The Chinese invention patent with patent application number CN202011327225.X discloses a slurry lifting machine for construction, which includes a moving seat, a hopper mechanism, a guide seat mechanism and a material-patting mechanism. A lifting frame is installed on the top surface of the moving seat, and an electric hoist and a lifting seat are provided on the lifting frame. A support frame is welded to the front end of the lifting seat, and a first lifting rope connected between the electric hoist and the lifting seat is provided on the top pulley. It does not need to climb to a higher position manually to compact concrete, thereby improving work efficiency and saving labor. However, it cannot adjust the distance between the hopper and the wall, and cannot adjust the thickness of the painting. There may be a problem of mortar falling from both sides of the hopper during painting. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a wall painting device for construction projects, in which an adjustment unit is provided, and a screw rod and a slider are provided between the base and the connecting seat to realize the movement of the bracket, so that the bracket on the painting device can easily realize precise horizontal movement according to the requirements of the wall, thereby driving the brush bucket to flexibly adjust the position, accurately controlling the distance between the brush bucket and the wall to be painted, and ensuring that each painting process can achieve the ideal uniformity and coverage rate; at the same time, in conjunction with the lifting platform and the electric telescopic rod, the mobile baffle is always in contact with the wall, which solves the problem of concrete mortar falling from both sides of the brush bucket when the staff is guiding the material, which not only effectively prevents the side leakage of the mortar, but also greatly improves the thickness control accuracy of the painting layer, so that the final painting effect is smoother and more beautiful.

[0006] According to a first aspect of the present invention, there is provided a wall painting device for construction engineering, comprising a support unit, an adjustment unit arranged on the support unit, a painting unit, a quick-setting unit for rapidly solidifying mortar, a cleaning unit for cleaning the painting unit, a driving unit, a moving unit arranged at the bottom of the painting device, and a controller, wherein:

[0007] The support unit includes a base and a connecting base arranged on the top of the base;

[0008] The adjustment unit includes a bracket welded to the top of the connection seat, a lifting platform placed on the bracket, and an electric telescopic rod symmetrically fixedly installed on the lifting platform;

[0009] The painting unit includes a brush bucket and a movable shield fixedly sleeved on the output end of the electric telescopic rod.

[0010] The quick-setting unit includes a cavity opened inside the connecting seat, a sleeve installed on the top of the connecting seat and connected to the cavity, an air guide fan installed at the center of the sleeve, a heating wire installed inside the cavity, an air groove opened inside the bracket and connected to the cavity, and an exhaust hole opened on the wall side of the bracket.

[0011] In one embodiment of the present invention, the adjustment unit further includes a sliding groove opened on the top of the base, a lifting screw threadedly connected to the lifting platform, and a guide rod bolted between the top of the bracket and the connecting seat.

[0012] In one embodiment of the present invention, the cleaning unit includes a groove opened inside the brush bucket, a cleaning plate arranged in the groove, a movable frame bolted to the cleaning plate, a second limiting guide block and a second limiting guide groove.

[0013] In one embodiment of the present invention, a first limiting guide block is bolted to the brush bucket, and a first limiting guide groove used in conjunction with the first limiting guide block is provided on the movable shield.

[0014] In one embodiment of the present invention, the driving unit includes a first screw rod, a first servo motor fixedly mounted on the base through a fixing member, a second screw rod threadedly connected to the movable frame, a second servo motor fixedly mounted on the fixed seat, and a third servo motor, and a connecting block is threadedly connected to the surface of the first screw rod.

[0015] In one embodiment of the present invention, the base includes a moving groove extending through the top of the base and second sliding grooves symmetrically provided on both sides of the moving groove.

[0016] The connecting seat comprises a second sliding block symmetrically bolted to the bottom of the connecting seat, and the second sliding block is slidably connected to the second sliding groove.

[0017] In one embodiment of the present invention, the connecting block is symmetrically provided with a first sliding block, and a first sliding groove for use in conjunction with the first sliding block is provided inside the sliding groove.

[0018] In one embodiment of the present invention, a dustproof net is installed inside the sleeve through a fixing member;

[0019] The air guide fan is symmetrically bolted with a support block bolted to the sleeve.

[0020] In one embodiment of the present invention, the exhaust hole is communicated with the air outlet groove.

[0021] According to a second aspect of the present invention, there is provided a wall painting method for a construction project, the steps comprising:

[0022] S100: Painting operation: Push the painting device to the wall, make the brush bucket contact with the wall, introduce concrete mortar between the brush bucket and the wall, start the third servo motor, and make the lifting platform drive the brush bucket to move upward through the cooperation of the lifting screw rod and the guide rod, so as to apply the concrete mortar on the wall and complete the painting work;

[0023] S200: Adjust the thickness of the plaster: Start the first servo motor to drive the first screw to rotate, drive the connection block and the top connection seat to move on the base, and change the distance between the brush bucket and the wall by adjusting the bracket, so as to adjust the thickness of the plastered concrete mortar. At the same time, start the electric telescopic rod to make the mobile shield fit the wall to ensure that the two sides of the brush bucket block the material to prevent the mortar from leaking sideways;

[0024] S300: Accelerate mortar drying: Start the air guide fan and heating wire. The air guide fan draws external air into the cavity. The heating wire heats the air to form a heated air flow, which is discharged through the air groove and exhaust hole. The heated air flow directly acts on the newly applied concrete mortar, accelerating its drying speed and improving construction efficiency.

[0025] S400: Cleaning the brush bucket: Start the second servo motor to drive the second screw to rotate, so that the mobile frame moves inside the brush bucket. The mobile frame drives the cleaning plate to get out of the groove to clean the concrete mortar on the brush bucket. The cleaning plate pushes the mortar to one place, which is convenient for the staff to clean it uniformly to prevent the mortar from hardening and affecting the next use.

[0026] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0027] 1. A wall painting device for construction projects of the present invention, by setting an adjustment unit, is provided with a screw rod and a slider between a base and a connecting seat to realize the movement of a bracket, so that the bracket on the painting device can easily realize precise movement in the horizontal direction according to the requirements of the wall surface, thereby driving the brush bucket to flexibly adjust the position, accurately control the distance between the brush bucket and the wall to be painted, adjust the painting thickness, and ensure that each painting process can achieve the ideal uniformity and coverage rate; at the same time, in conjunction with the lifting platform and the electric telescopic rod, the mobile baffle is always in contact with the wall, which solves the problem that concrete mortar falls from both sides of the brush bucket when the staff guides the material, not only effectively preventing the side leakage of the mortar, but also greatly improving the thickness control accuracy of the painting layer, so that the final painting effect is smoother and more beautiful.

[0028] 2. A wall painting device for construction projects according to the present invention comprises a sleeve arranged on a connecting seat, an air guide fan arranged inside the sleeve, a heating wire arranged in the cavity of the connecting seat, and air is heated by the heating wire. The heated air is driven by the air guide fan and evenly discharged through exhaust holes arranged on the bracket, directly acting on the newly applied concrete mortar layer on the wall surface. This not only significantly accelerates the evaporation process of water in the mortar, thereby greatly improving its drying speed, effectively shortening the waiting time, and accelerating the overall construction progress; at the same time, the evenly distributed heated airflow can also promote the uniform solidification of the internal structure of the mortar layer, effectively avoiding quality problems such as cracking and falling off caused by uneven drying, thereby ensuring the quality of the wall painting operation.

[0029] 3. A wall painting device for construction projects of the present invention arranges a cleaning plate in the inner groove of the brush bucket. When the second servo motor in the painting device is started, it drives the second screw to rotate, and the pulling movable frame moves smoothly on a preset track, thereby driving the cleaning plate to move inside the brush bucket, scraping off and gathering the concrete mortar residues adhered to the surface of the brush bucket due to the operation. The staff no longer need to manually remove the stubborn mortar residues time-consuming and laborious, which not only effectively reduces the labor intensity, but also significantly improves the work efficiency of the painting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a wall painting device for construction engineering according to an embodiment of the present invention;

[0031] Figure 2 For the embodiment of the present invention Figure 1 A magnified image of point A;

[0032] Figure 3 For the embodiment of the present invention Figure 1 A magnified view of point B;

[0033] Figure 4 This is a schematic diagram of the structure of a movable frame in a wall painting device for construction engineering according to an embodiment of the present invention;

[0034] Figure 5 This is a top cross-sectional view of a base in a wall painting device for construction engineering according to an embodiment of the present invention;

[0035] Figure 6 A top cross-sectional view of a connecting seat in a wall painting device for construction engineering according to an embodiment of the present invention;

[0036] Figure 7 This is a cross-sectional view of a sleeve in a wall painting device for construction engineering according to an embodiment of the present invention;

[0037] Figure 8 This is a cross-sectional view of a bracket in a wall painting device for construction engineering according to an embodiment of the present invention;

[0038] Fig. 9 The present invention is a schematic flow chart of a painting method of a wall painting device used in a construction project according to an embodiment of the present invention.

[0039] In all the drawings, the same reference numerals represent the same technical features, specifically: 1-support unit, 11-base, 111-second slide groove, 112-moving groove, 12-connecting seat, 121-second slider;

[0040] 2-adjusting unit, 21-sliding groove, 211-first sliding block, 212-first sliding groove, 22-bracket, 23-lifting platform, 231-fixed seat, 24-electric telescopic rod, 25-lifting screw rod, 26-guide rod; 3-painting unit, 31-brush bucket, 311-first limiting guide block, 32-movable baffle cover, 321-first limiting guide groove;

[0041] 4-quick-setting unit, 41-cavity, 42-sleeve, 421-support block, 422-dust-proof net, 43-air guide fan, 44-heating wire, 45-air groove, 46-exhaust hole;

[0042] 5-cleaning unit, 51-groove, 52-cleaning plate, 53-moving frame, 54-second limiting guide block, 55-second limiting guide groove;

[0043] 6-driving unit, 61-first screw rod, 611-connecting block, 62-first servo motor, 63-second screw rod, 64-second servo motor, 65-third servo motor;

[0044] 7-Universal wheel, 8-Controller. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] In this patent, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0049] Depend on Figure 1-8 It can be seen that the present invention provides a wall painting device for construction projects, including a supporting unit 1, an adjusting unit 2 arranged on the supporting unit 1, a painting unit 3, a quick-setting unit 4 for quickly solidifying mortar, a cleaning unit 5 for cleaning the painting unit 3, a driving unit 6, a moving unit arranged at the bottom of the painting device, and a controller 8. The support unit 1 is used to carry the adjustment unit 2, the painting unit 3, and the quick-setting unit 4 to ensure that each unit remains balanced and stable during operation. The adjustment unit 2 is used to adjust the distance between the painting unit 3 and the wall. The painting unit 3 is used to directly contact the wall for painting. The quick-setting unit 4 is used to quickly dry the painted concrete mortar. The driving unit 6 is used to drive the screw rod to achieve the displacement of the bracket. The moving unit is used to move the wall painting device to a specified position. Specifically, the moving unit is a universal wheel 7, and the universal wheel 7 is equipped with a foot brake; the controller 8 is fixedly arranged on the top of the connecting seat, and a sleeve is arranged on one side thereof. By arranging the universal wheel 7 and the controller 8, it is convenient for the painting device to move and control the painting device to work.

[0050] Depend on Figure 1-8 It can be known that the support unit 1 includes a base 11 and a connecting base 12 arranged on the top of the base 11 .

[0051] The base 11 includes a movable groove 112 that passes through the top of the base 11 and a second sliding groove 111 that is symmetrically opened on both sides of the movable groove 112. The movable groove 112 extends vertically downward from the top surface of the base 11 to form a long open space, and its shape is linear, which is convenient for the connecting seat to move horizontally along the movable groove 112; the movable groove 112 is used in conjunction with the third servo motor 65. By setting the movable groove 112, it is convenient for the third servo motor 65 to move when the connecting seat 12 is adjusted on the base 11.

[0052] The connecting seat 12 includes a second sliding block 121 symmetrically bolted to the bottom of the connecting seat, and the second sliding block 121 is slidably connected to the second sliding groove 111 .

[0053] By setting the second slider 121 and the second slide groove 111, the second slider 121 is firmly fixed at the bottom of the connecting seat 12, and its shape and size are adapted to the second slide groove 111 to ensure a close fit with the second slide groove 111. When received, it can smoothly drive the connecting seat 12 to move along a preset path, which not only improves the smoothness and stability of the linear movement of the connecting seat 12, but also ensures precise control and sliding limit of the entire movement process.

[0054] Depend on Figure 1-8 It can be seen that the adjustment unit 2 includes a sliding groove 21 opened at the top of the base 11, a bracket 22 welded to the top of the connecting seat 12, a lifting platform 23 on the bracket 22, an electric telescopic rod 24 symmetrically fixedly installed on the lifting platform, a lifting screw rod 25 threadedly connected to the lifting platform 23, and a guide rod 26 bolted between the top of the bracket 22 and the connecting seat 12.

[0055] The bracket 22 is a door-shaped structure, on which a lifting platform 23 is arranged, and a lifting screw 25 is arranged in the middle. The lifting platform 23 is symmetrically bolted with a fixing seat 231. Both fixing seats 231 are rotatably connected to the second screw 63 through bearings.

[0056] The guide rod 26 is slidably connected to the lifting platform 23. By setting the guide rod 26, the lifting platform 23 can be slidably limited when it is lifted, ensuring the precise movement of the lifting platform 23 in the vertical direction. The guiding effect of the guide rod 26 also effectively limits the deviation or shaking of the lifting platform in non-preset directions, thereby improving the stability and safety of the overall system.

[0057] The driving unit 6 comprises a first screw rod 61, a connecting block 611 is threadedly connected to the surface of the first screw rod 61, a first slider 211 is symmetrically arranged on the connecting block 611, and a first slide groove 212 is provided inside the slide groove for use with the first slider 211. The first screw rod 61 is rotatably connected to the inside of the slide groove through a bearing.

[0058] It should be noted that the first sliding block 211 and the first sliding groove 212 have the same structure as the second sliding block 111 and the second sliding groove 112 .

[0059] By providing the connecting block, the first sliding block 211 and the first sliding groove 212, the connecting seat 12 can be driven to move when the first screw rod 61 rotates, and the first sliding block 211 and the first sliding groove 212 can slide and limit the movement of the connecting block.

[0060] In an embodiment of the present invention, an adjustment unit 2 is provided, and a screw rod and a slider are provided between the base 11 and the connecting seat 12 to realize the movement of the bracket 22, so that the bracket 22 on the painting device can easily realize precise horizontal movement according to the requirements of the wall, thereby driving the brush bucket 31 to flexibly adjust the position, accurately control the distance between the brush bucket 31 and the wall to be painted, and ensure that each painting process can achieve the ideal uniformity and coverage rate; at the same time, in conjunction with the lifting platform 23 and the electric telescopic rod 24, the mobile baffle 32 is always in contact with the wall, which solves the problem of concrete mortar falling from both sides of the brush bucket 31 when the staff is guiding the material. It not only effectively prevents the side leakage of the mortar, but also greatly improves the thickness control accuracy of the painting layer, making the final painting effect smoother and more beautiful.

[0061] The painting unit 3 includes a brush bucket 31 bolted between two fixing seats 231 and a movable shield 32 fixedly sleeved on the output end of the electric telescopic rod 24 .

[0062] The brush bucket 31 is bolted with a first limiting guide block 311, and the mobile shield 32 is provided with a first limiting guide groove 321 used in conjunction with the first limiting guide block 311. By setting the first limiting guide block 311 and the first limiting guide groove 321, when the electric telescopic rod 24 receives an instruction to start working, it will push the mobile shield 32 to move smoothly along a predetermined trajectory. During the movement, the first limiting guide block 311 slides in the first limiting guide groove 321, effectively limiting the deviation and shaking of the mobile shield 32, and ensuring the stability of the movement.

[0063] The quick-setting unit 4 includes a cavity 41 opened inside the connecting seat 12, a sleeve 42 installed on the top of the connecting seat 12 and connected to the cavity 41, an air guide fan 43 installed at the center of the sleeve 42, a heating wire 44 installed inside the cavity 41, an air groove 45 opened inside the bracket and connected to the cavity 41, and an exhaust hole 46 opened on the wall side of the bracket.

[0064] A dustproof net 422 is installed inside the sleeve 42 through a fixing part. The dustproof net 422 is made of a fine stainless steel wire mesh and can effectively block dust, particulate matter and other impurities in the outside air from entering the internal system, thereby protecting subsequent airflow processing equipment from pollution and improving the overall operating efficiency and service life.

[0065] The air guide fan 43 is symmetrically bolted with a support block 421 bolted to the sleeve 42 , thereby achieving a stable connection between the sleeve 42 and the air guide fan 43 and also playing a role in fixing and limiting the air guide fan 43 .

[0066] During installation, the air guide fan 43 is first placed at a preset position, accurately aligned using the support block 421, and fastened using high-strength bolts, and then the dust screen 422 is installed on the surface of the sleeve 42 using a tool.

[0067] It can be known that the exhaust hole 46 is connected to the air groove 45, ensuring that the internal heated gas can be efficiently and orderly discharged through the exhaust hole 46, while the air groove 45 serves as a channel for gas flow, further guiding and accelerating the flow of gas, thereby accelerating the drying of the wall mortar.

[0068] In the embodiment of the present invention, a sleeve 42 is provided on the connecting seat 12, and an air guide fan 43 is provided inside the sleeve 42, and a heating wire 44 is provided in the cavity 41 of the connecting seat 12. The air is heated by the heating wire 44, and the heated air is evenly discharged through the exhaust holes 46 provided on the bracket 22 under the drive of the air guide fan 43, and directly acts on the newly applied concrete mortar layer on the wall surface. This not only significantly accelerates the evaporation process of water in the mortar, thereby greatly improving its drying speed, effectively shortening the waiting time, and speeding up the overall construction progress; at the same time, the evenly distributed heated airflow can also promote the uniform solidification of the internal structure of the mortar layer, effectively avoiding quality problems such as cracking and falling off caused by uneven drying, thereby ensuring the quality of the wall painting operation.

[0069] The cleaning unit 5 includes a groove 51 opened inside the brush bucket 31 , a cleaning plate 52 disposed in the groove, a moving frame 53 bolted to the cleaning plate 52 , a second limiting guide block 54 and a second limiting guide groove 55 .

[0070] The cleaning plate 52 is in the shape of a flat plate, one side of which is seamlessly fitted with the brush bucket surface, so that the cleaning plate 52 can clean the remaining mortar. It not only increases the contact area, but also greatly improves the cleaning efficiency, so that the mortar remaining on the brush bucket surface can be scraped off thoroughly and efficiently.

[0071] A second limiting guide block 54 is bolted to the movable frame 53 , a second limiting guide groove 55 is formed on the top of the brush bucket 31 , and the second limiting guide block 54 and the second limiting guide groove 55 are slidably connected.

[0072] By setting the second limit guide block 54 and the second limit guide groove 55, when the second screw drives the movable frame 53 to perform stable and smooth linear movement, the second limit guide block 54 can slide smoothly along the predetermined trajectory of the second limit guide groove 55, thereby effectively limiting the moving direction of the movable frame 53 and preventing it from deviating from the predetermined path.

[0073] In the embodiment of the present invention, a cleaning plate 52 is provided in the internal groove 51 of the brush bucket 31. When the second servo motor 64 in the painting device is started, the second screw rod 63 is driven to rotate, and the moving frame 53 is pulled to move smoothly on the preset track, thereby driving the cleaning plate 52 to move inside the brush bucket 31, scraping off and gathering the concrete mortar residues adhering to the surface of the brush bucket due to the operation. The staff no longer need to spend time and effort to manually remove the stubborn mortar residues, which not only effectively reduces the labor intensity, but also significantly improves the work efficiency of the painting operation.

[0074] The driving unit 6 further includes a first servo motor 62 fixedly mounted on the base through a fixing member, a second screw rod 63 threadedly connected to the moving frame, a second servo motor 64 fixedly mounted on the fixing seat 231 , and a third servo motor 65 .

[0075] One end of the first screw rod 61 passes through the outside of the base 11 and is bolted to the first servo motor 62

[0076] One end of the second screw rod 63 passes through the other side of the fixing seat 231 and is bolted to the second servo motor 64

[0077] The third servo motor 65 is installed in the top slot of the connecting seat 12 through a fixing member. The lower side of the third servo motor 65 is a moving slot 112.

[0078] The output end of the third servo motor 65 is bolted with a lifting screw 25 rotatably connected to the bracket 22 via a bearing, and the lifting screw 25 is threadedly connected to the lifting platform 23 .

[0079] By providing the third servo motor 65 and the lifting screw 25 , the lifting platform 23 can be lifted and lowered inside the bracket 22 conveniently.

[0080] In another embodiment of the present invention, a wall painting method for a construction project is provided, the steps comprising:

[0081] S100: Painting operation: Push the painting device to the wall, make the brush bucket 31 contact with the wall, introduce concrete mortar between the brush bucket 31 and the wall, start the third servo motor 65, and through the cooperation of the lifting screw 25 and the guide rod 26, make the lifting platform 23 drive the brush bucket 31 to move upward, and apply the concrete mortar on the wall to complete the painting work.

[0082] S200: Adjusting the thickness of the plaster: Start the first servo motor 62 to drive the first screw 61 to rotate, drive the connecting block 611 and the top connecting seat 12 to move on the base 11, and change the distance between the brush bucket 31 and the wall by adjusting the bracket 22, so as to adjust the thickness of the plastered concrete mortar. At the same time, start the electric telescopic rod 24 to make the movable baffle 32 fit the wall to ensure that the two sides of the brush bucket 31 are blocked to prevent the mortar from leaking sideways.

[0083] S300: Accelerate the drying of mortar: Start the air guide fan 43 and the heating wire 44. The air guide fan 43 draws external air into the cavity 41. The heating wire 44 heats the air to form a heated airflow, which is discharged through the air groove 45 and the exhaust hole 46. The heated airflow directly acts on the newly applied concrete mortar, accelerates its drying speed, and improves construction efficiency.

[0084] S400: Cleaning the brush bucket: Start the second servo motor 64 to drive the second screw 63 to rotate, so that the movable frame 53 moves inside the brush bucket 31. The movable frame 53 drives the cleaning plate 52 to escape from the groove 51, and cleans the concrete mortar on the brush bucket 31. The cleaning plate 52 pushes the mortar to one place, which is convenient for the staff to clean it uniformly and prevents the mortar from hardening and affecting the next use.

[0085] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wall painting device for construction engineering, characterized in that: The device comprises a support unit (1), an adjustment unit (2) arranged on the support unit (1), a painting unit (3), a quick-setting unit (4) for quickly setting mortar, a cleaning unit (5) for cleaning the painting unit (3), a driving unit (6), a moving unit arranged at the bottom of the painting device, and a controller (8), wherein: The support unit (1) comprises a base (11) and a connecting base (12) arranged on the top of the base (11); The adjustment unit (2) comprises a bracket (22) welded to the top of the connection seat (12), a lifting platform (23) placed on the bracket (22), and an electric telescopic rod (24) symmetrically fixedly installed on the lifting platform; The painting unit (3) comprises a brush bucket (31) and a movable shield (32) fixedly sleeved on the output end of the electric telescopic rod (24). The quick-setting unit (4) comprises a cavity (41) opened inside the connecting seat (12), a sleeve (42) installed on the top of the connecting seat (12) and connected to the cavity (41), an air guide fan (43) installed at the center of the sleeve (42), a heating wire (44) installed inside the cavity (41), an air groove (45) opened inside the bracket and connected to the cavity (41), and an exhaust hole (46) opened on the side of the bracket close to the wall.

2. The wall painting device for construction engineering according to claim 1, characterized in that: The adjustment unit (2) further comprises a sliding groove (21) provided at the top of the base (11), a lifting screw rod (25) threadedly connected to the lifting platform (23), and a guide rod (26) bolted between the top of the bracket (22) and the connecting seat (12).

3. The wall painting device for construction engineering according to claim 2, characterized in that: The cleaning unit (5) comprises a groove (51) opened inside the brush bucket (31), a cleaning plate (52) arranged in the groove, a movable frame (53) bolted to the cleaning plate (52), a second limiting guide block (54) and a second limiting guide groove (55).

4. The wall painting device for construction engineering according to claim 3, characterized in that: The brush bucket (31) is bolted with a first limiting guide block (311), and the movable blocking cover (32) is provided with a first limiting guide groove (321) for use in conjunction with the first limiting guide block (311).

5. The wall painting device for construction engineering according to any one of claims 1 to 4, characterized in that: The driving unit (6) comprises a first screw rod (61), a first servo motor (62) fixedly mounted on a base via a fixing member, a second screw rod (63) threadedly connected to the moving frame, a second servo motor (64) fixedly mounted on the fixing seat (231), and a third servo motor (65); a connecting block (611) is threadedly connected to the surface of the first screw rod.

6. The wall painting device for construction engineering according to any one of claims 1 to 4, characterized in that: The base (11) comprises a moving groove (112) extending through the top of the base (11) and second sliding grooves (111) symmetrically arranged on both sides of the moving groove (112). The connecting seat (12) comprises a second sliding block (121) symmetrically bolted to the bottom of the connecting seat, and the second sliding block (121) is slidably connected to the second sliding groove (111).

7. The wall painting device for construction engineering according to claim 5, characterized in that: The connecting block (611) is symmetrically provided with a first sliding block (211), and a first sliding groove (212) for use in conjunction with the first sliding block (211) is provided inside the sliding groove.

8. The wall painting device for construction engineering according to any one of claims 1 to 4, characterized in that: A dustproof net (422) is installed inside the sleeve (42) via a fixing member; The air guide fan (43) is symmetrically bolted with a support block (421) bolted to the sleeve (42).

9. The wall painting device for construction engineering according to any one of claims 1 to 4, characterized in that: The exhaust hole (46) is communicated with the air outlet groove (45).

10. A wall painting method for construction engineering, which is implemented by the device according to any one of claims 1 to 9, characterized in that the steps include: S100: Painting operation: Push the painting device to the wall, make the brush bucket (31) contact the wall, introduce concrete mortar between the brush bucket (31) and the wall, start the third servo motor (65), and make the lifting platform (23) drive the brush bucket (31) to move upward through the cooperation of the lifting screw rod (25) and the guide rod (26), so as to apply the concrete mortar on the wall, and complete the painting operation; S200: Adjusting the thickness of the plaster: starting the first servo motor (62) to drive the first screw rod (61) to rotate, driving the connecting block (611) and the top connecting seat (12) to move on the base (11), and changing the distance between the brush bucket (31) and the wall by adjusting the bracket (22), thereby adjusting the thickness of the plastered concrete mortar, and at the same time starting the electric telescopic rod (24) to make the movable shield (32) fit the wall, ensuring that the two sides of the brush bucket (31) block the material to prevent the mortar from leaking sideways; S300: Accelerating the drying of the mortar: starting the air guide fan (43) and the heating wire (44), the air guide fan (43) sucks the external air into the cavity (41), the heating wire (44) heats the air to form a heated air flow, which is discharged through the air groove (45) and the exhaust hole (46), and the heated air flow directly acts on the newly applied concrete mortar, accelerating its drying speed and improving the construction efficiency; S400: cleaning the brush bucket: starting the second servo motor (64) to drive the second screw rod (63) to rotate, so that the movable frame (53) moves inside the brush bucket (31), and the movable frame (53) drives the cleaning plate (52) to escape from the groove (51), and clean the concrete mortar on the brush bucket (31). The cleaning plate (52) pushes the mortar to one place, so that the staff can clean it uniformly and prevent the mortar from hardening and affecting the next use.

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