A self-lifting intelligent construction platform based on a BIM system

Abstract

The application relates to the technical field of building construction automation, in particular to an automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system, which comprises a moving assembly, a support frame, a supporting assembly, a plastering assembly, an information control center and a controller, the moving assembly comprises a chassis and a roller, is used for driving the automatic plastering machine to turn and move linearly, the support frame comprises a support plate which is arranged on a horizontal and overhanging chassis in a supporting mode, and the supporting assembly is arranged on the support frame and is height-adjustable, the plastering assembly comprises a storage tank, a plastering head, a conveying pump and a conveying pipe and is used for plastering, the information control center comprises a BIM system which is established based on a building design scheme, the controller is arranged on the support plate, is used for transmitting data with the information control center, and collects and processes position information and working state information of the automatic plastering machine to control intelligent operation of the automatic plastering machine. The intelligent construction platform based on the BIM system has high intelligentization degree, high construction efficiency and reduced construction cost.

Description

Technical Field

[0001] This invention relates to the field of building construction automation technology, and in particular to an automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system. Background Technology

[0002] Plastering involves a large amount of wet mortar work, and construction standards impose high requirements on plastering quality. Traditional manual plastering is labor-intensive and requires a high level of skill from workers, making plasterers a relatively scarce occupation in the construction industry, often resulting in labor shortages. Furthermore, working in high-temperature and high-pollution environments for extended periods increases the risk of heatstroke, pneumoconiosis, and other occupational diseases. Traditional plastering also has high labor costs, low efficiency, inconsistent quality, and is accompanied by safety and occupational disease risks.

[0003] With technological advancements, existing plastering units can utilize semi-mechanized equipment to assist manual labor in basic plastering tasks. However, during the operation of existing plastering machines, each preparation and preparatory step for mechanical plastering still requires manual intervention, resulting in long processing times, low efficiency, and inconsistent accuracy. The machines cannot move automatically, and movement between steps relies on manual labor. Manual placement of plaster spots and screed strips is necessary as a baseline for plastering operations. Existing machines cannot recognize their own position, requiring manual alignment and positioning between each step. To ensure the verticality of the plaster, manual adjustments to the position and orientation of the plastering mechanism are required. Plaster thickness also requires manual positioning and adjustment. Furthermore, the machines often leave numerous blank areas during plastering operations, resulting in insufficient mechanical coverage. The plaster head cannot plaster at the bottom corners, necessitating manual finishing touches. Some plastering machines are designed to be too large, preventing them from freely entering confined spaces such as corridors and dressing rooms, hindering construction. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide an automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system, so as to solve the technical problem of low construction efficiency caused by the low level of intelligent construction of existing automatic plastering machines.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An automatic plastering machine for a BIM-based self-lifting intelligent construction platform includes:

[0007] The moving component includes a base frame and rollers. The length direction of the base frame is defined as the front-to-back direction, and the width direction of the base frame is defined as the left-to-right direction. The rollers are symmetrically arranged on the left and right sides of the base frame, and there are two sets in the front-to-back direction. One set of rollers on the front side of the base frame is a steering wheel, and the other set on the rear side of the base frame is a drive wheel. A steering mechanism is provided on the base frame corresponding to the steering wheel, and a drive mechanism is provided on the base frame corresponding to the drive wheel.

[0008] The support frame includes a support plate and a support column. The support plate is horizontally arranged, and the support column is fixedly connected between the support plate and the base frame. The width of the support plate is greater than the width of the roller in the left and right direction to be cantilevered. The cantilevered part is provided with support ribs that are connected to the support column.

[0009] The support assembly includes two sets of support rods and a connecting rod connecting the two support rods. Each support rod includes a first support section and a second support section. The first support section is fixedly installed on the left side of the top surface of the support plate, and the second support section is slidably assembled on the left side of the first support rod in the vertical direction.

[0010] The plastering assembly includes a storage bin, a plastering head, a conveying pump, and a conveying pipe. The storage bin is mounted on a support plate. The plastering head is slidably mounted on two second support sections in the vertical direction. The plastering head extends in the front-back direction and the outlet of the plastering head faces to the left. The conveying pump is located inside the storage bin. One end of the conveying pipe is connected to the conveying pump, and the other end is connected to the plastering head.

[0011] The information control center includes a BIM system built based on the architectural design scheme. The BIM system stores building model information. The information control center is used for remote monitoring and data transmission of the automatic plastering machine.

[0012] The controller, mounted on the support plate, includes a data receiving module, a data sending module, a data processing module, an action module, a data storage module, a data recording module, and a position detection module. The data receiving module receives building model data from the BIM system in the information control center. The signal sending module transmits the work data of the automatic plastering machine to the information control center. The data processing module is connected to the data receiving module, data sending module, action module, data storage module, data recording module, and position detection module to process and analyze the data. The action module controls the steering mechanism and drive mechanism to move the automatic plastering machine, controls the conveying pump to deliver mortar, controls the movement of the second support section relative to the first support section, and controls the movement of the plastering head relative to the second support section. The data storage module stores data. The data recording module records the position information of the plastering head when it starts or ends plastering. The position detection module locates the position of the automatic plastering machine within the construction floor and the distance between the automatic plastering machine and the construction wall.

[0013] The portable power supply is detachably mounted between the base frame and the support plate, and is electrically connected to the steering mechanism, drive mechanism, delivery pump and controller respectively.

[0014] Preferably, the first support section is provided with a first guide groove extending vertically in a convex cross-section, the opening of the first guide groove facing to the left, at least two first sliding blocks are slidably assembled in the first guide groove, the size of the first sliding blocks is adapted to the first guide groove, one end of the first sliding block facing the second support section is fixedly connected to the second support section, a screw extending vertically is threadedly connected to the first sliding block, the bottom end of the screw is rotatably connected to the support plate, a first drive motor is fixedly installed at the top of the first support section, the first drive motor is electrically connected to the controller, and a first coupling is provided between the output end of the first drive motor and the top end of the screw.

[0015] Preferably, the front and rear sides of the second support section are symmetrically provided with limiting grooves extending in the vertical direction, the left side of the second support section is provided with a second guide groove extending in the vertical direction, the second guide groove is provided with a rack plate extending in the vertical direction, and both ends of the second support section can be detachably connected with protective plates.

[0016] A drive block is fixedly installed on the side of the plastering head near the second support section. The drive block is provided with a third guide groove extending in the vertical direction. The third guide groove includes a convex-shaped limiting section and a rectangular mounting section. The limiting section is used to press against the left side of the second support section and engage with the limiting groove of the second support section. A drive gear that meshes with the rack plate is provided in the mounting section. A rotating shaft is fixedly connected to the drive gear in the axial direction. The rotating shaft passes through the drive block in the front-back direction and is rotatably connected to the drive block. A second drive motor is fixedly connected to the side of the drive block facing the other second support section. The second drive motor is electrically connected to the controller. A second coupling is provided between the output section of the second drive motor and the rotating shaft.

[0017] Preferably, the controller is electrically connected to a material storage detection unit, which includes a pressure sensor located at the bottom of the material storage tank. The pressure sensor signals to the data processing module to detect the remaining amount of mortar in the storage tank and transmit the data to the data processing module. When the mortar in the storage tank does not meet the plastering requirements, the controller sends a signal to the action module and the data recording module. The action module controls the delivery pump to stop working, and the data recording module records the current position and plastering height of the plastering machine.

[0018] Preferably, the plastering head includes a hopper and a cover plate. A discharge platform extending in the front-to-back direction is provided on the left side of the hopper. Stop strips extending in the left-to-right direction are provided on the front inner side wall and the rear inner side wall of the top of the hopper. A stop groove is provided on the front inner side and the rear inner side of the hopper near the right inner side. The cover plate is L-shaped. The vertical part of the cover plate abuts against the right inner side wall of the hopper, and the front and rear sides of the vertical part of the cover plate are respectively provided with limiting strips adapted to the size of the stop groove. The discharge port is formed between the discharge platform and the horizontal part of the cover plate. When the cover plate slides to the lowest position relative to the hopper, the horizontal part of the cover plate contacts the bottom of the discharge platform, and the discharge port is closed. When the cover plate slides upward a set distance relative to the hopper, there is a set distance between the horizontal part of the cover plate and the bottom of the discharge platform, and the discharge port is opened.

[0019] Preferably, scraper assemblies are provided on both the front and rear sides of the bottom of the discharge platform. The scraper assembly includes a fixed plate, an electro-hydraulic push rod, and a scraper. The fixed plate is fixedly installed at the bottom of the discharge platform. The fixed end of the electro-hydraulic push rod is connected to the fixed plate, and the axis of the electro-hydraulic push rod extends in the front-rear direction. The electro-hydraulic push rod is electrically connected to the controller. The scraper is L-shaped. The vertical part of the scraper is fixedly connected to the movable end of the electro-hydraulic push rod. The horizontal part of the scraper extends away from the electro-hydraulic push rod and is close to the bottom of the discharge platform. The left side of the horizontal part of the scraper is flush with the left side of the discharge platform. When the electro-hydraulic push rod is fully retracted, the distance from the vertical part of the scraper to the corresponding end of the hopper is not less than the length of the horizontal section of the scraper.

[0020] Preferably, the left side of the support plate is provided with a clearance groove, which is used to allow the conveying pipe to pass through when the height of the plastering head is lower than the height of the support plate.

[0021] Preferably, the controller is electrically connected to a positioning unit, which includes a laser rangefinder and a camera. The laser rangefinder is mounted on a base frame, and laser rangefinders are installed on all four sides of the base frame, with at least two laser rangefinders on each side. The laser rangefinder is used to measure the distance between the automatic plastering machine and the wall. The laser rangefinder is signal-connected to a data processing module to transmit data to the data processing module for analysis of the distance between the automatic plastering machine and the construction wall. The camera is mounted on the bottom of a support plate to record the construction environment. The camera is signal-connected to the data processing module to transmit data to the data processing module for comparison and analysis with the building model to determine the position of the automatic plastering machine within the construction floor.

[0022] The beneficial effects of the above technical solution are as follows: The automatic plastering machine of the self-lifting intelligent construction platform based on the BIM system of the present invention receives relevant dimensional data of the building model from the information control center through the data receiving module, compares and analyzes the spatial position of the automatic plastering machine through the position monitoring module, and controls the steering mechanism and drive mechanism through the action module to realize the steering and straight movement of the automatic plastering machine, ensuring that the distance between the plastering head on the plastering machine and the wall is the required plastering thickness. The overall construction of the wall to be plastered is ensured by the movement of the second support section relative to the first support section and the movement of the plastering head on the second support section. After the plastering head completes the single upward plastering, it can move to the lowest position under the action of the controller. At the same time, the controller controls the automatic plastering machine to move along the parallel wall by the same dimension as the plastering width to realize continuous plastering operation. During the construction process, the data processing module analyzes the distance between the plastering head and the adjacent wall components on both sides according to the position detection module on the automatic plastering machine to control whether the electric hydraulic push rod extends and the extension length. By monitoring the remaining amount of mortar in the storage tank, the phenomenon of empty pipe in the delivery pipe during the mortar pumping process is avoided, thus ensuring the quality of plastering work.

[0023] The automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system, as described in this invention, has the following advantages:

[0024] 1. The data receiving module and data sending module can retrieve the dimensional data of the construction mechanism. With the help of the data processing module, action module and position detection module, the automatic plastering machine can automatically adjust its position and perform continuous plastering operations, thereby improving the intelligent construction of the automatic plastering machine, reducing the use of manual labor and greatly reducing construction costs.

[0025] 2. By using a cantilevered support plate, the first and second support rods are positioned on one side of the automatic plastering machine. Through the movement of the first support section relative to the second support section, and the movement of the plastering head relative to the second support section, the plastering range is maximized, avoiding subsequent manual plastering and resulting in high construction efficiency.

[0026] 3. By installing a cover plate at the plastering head, the mortar is delivered into the silo through the conveying pipe before plastering. The mortar first fills the internal space of the silo, and then the cover plate is lifted to open the outlet. This ensures that mortar can appear at the outlet at the same time when the plastering head starts working, thus ensuring the plastering effect.

[0027] 4. By setting up a material storage detection unit, the remaining amount of mortar in the storage box is monitored to avoid empty pipes in the delivery pipes during mortar pumping, thus ensuring the quality of plastering work. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of the present invention;

[0029] Figure 2 This is a schematic diagram of the first support section of the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of the present invention;

[0030] Figure 3 This is a schematic diagram of the second support section in the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of the present invention;

[0031] Figure 4 This is a schematic diagram of the drive block in the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of the present invention;

[0032] Figure 5 This is a schematic diagram of the plastering head in the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of the present invention;

[0033] Figure 6 This is a schematic diagram of the scraper assembly in the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of the present invention.

[0034] Figure 7 This is a flowchart of the automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system, according to the present invention.

[0035] Explanation of reference numerals in the attached drawings: 1-Base frame, 2-Roller, 3-Support plate, 4-Support column, 5-Support rod, 6-First support section, 7-Second support section, 8-First guide groove, 9-First sliding block, 10-Screw, 11-First drive motor, 12-First coupling, 13-Limit groove, 14-Second guide groove, 15-Rack plate, 16-Protective plate, 17-Storage bin, 18-Plaster head, 19-Conveying pipe, 20-Drive block. 21-Third guide groove, 22-Limiting section, 23-Installation section, 24-Drive gear, 25-Second drive motor, 26-Hopper body, 27-Cover plate, 28-Discharge platform, 29-Stop bar, 30-Stop anti-slip groove, 31-Limiting bar, 32-Discharge port, 33-Allowing groove, 34-Fixing plate, 35-Electro-hydraulic push rod, 36-Scraper, 37-Laser rangefinder, 38-Camera, 39-Power bank, 40-Controller. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0037] A specific embodiment of the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of the present invention is as follows:

[0038] like Figures 1 to 7As shown, the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of the present invention includes a moving component, a support frame, a plastering component, an information control center, and a controller 40.

[0039] like Figure 1 As shown, the moving component includes a base frame 1 and rollers 2. The length direction of the base frame 1 is defined as the front-to-back direction, and the width direction of the base frame 1 is defined as the left-to-right direction. The rollers 2 are symmetrically arranged on the left and right sides of the base frame 1, with two sets arranged in the front-to-back direction. One set of rollers 2 on the front side of the base frame 1 is the steering wheel, and the other set on the rear side of the base frame 1 is the drive wheel. A steering mechanism (not shown in the figure) is provided on the base frame 1 corresponding to the steering wheel, and a drive mechanism (not shown in the figure) is provided on the base frame 1 corresponding to the drive wheel. It should be noted that the steering mechanism is used to control the travel direction of various wheeled or tracked vehicles. It generally consists of a steering gear and a steering linkage. When power steering is used, a hydraulic pump, control valve, actuating cylinder, and oil reservoir are also required, collectively known as a hydraulic power steering mechanism, which is existing technology and its specific structure and working principle will not be described in detail here. The drive mechanism is the drive assembly in the vehicle, including the engine, gearbox, and drive axle, etc., used to provide power to the drive wheels for rotation. The drive mechanism is existing technology and its specific structure and working principle will not be described in detail here.

[0040] like Figure 1 As shown, the support frame includes a support plate 3 and a support column 4. The support plate 3 is horizontally positioned, and the support column 4 is fixedly connected between the support plate 3 and the base frame 1. The width of the support plate 3 is greater than the width of the roller 2 in the left-right direction to allow it to be cantilevered, and the cantilevered portion is provided with support ribs that connect to the support column 4.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, the support assembly includes two sets of support rods 5 and a connecting rod connecting the two support rods 5. Each support rod 5 includes a first support section 6 and a second support section 7. The first support section 6 is fixedly disposed on the left side of the top surface of the support plate 3. The second support section 7 is slidably assembled on the left side of the first support rod 5 in the vertical direction. The first support section 6 has a first guide groove 8 with a convex cross-section extending vertically, and the opening of the first guide groove 8 faces left. Two first sliding blocks 9 are slidably assembled within the first guide groove 8. The dimensions of the first sliding blocks 9 are adapted to the first guide groove 8, and the end of the first sliding block 9 facing the second support section 7 is fixedly connected to the second support section 7. A screw 10 extending vertically is threaded onto the first sliding block 9, and the bottom end of the screw 10 is rotatably connected to the support plate 3. A first drive motor 11 is fixedly disposed on the top of the first support section 6. The first drive motor 11 is electrically connected to the controller 40. The output end of the first drive motor 11 extends axially in the vertical direction, and a first coupling 12 is coaxially disposed between it and the top end of the screw 10.

[0042] like Figure 1 and Figure 3 As shown, the second support section 7 has symmetrically arranged limiting grooves 13 extending vertically on both its front and rear sides. A second guide groove 14 extending vertically is provided on the left side of the second support section 7, and a rack plate 15 extending vertically is arranged within the second guide groove 14. Protective plates 16 are detachably connected to both the upper and lower ends of the second support section 7.

[0043] like Figure 1 and Figure 4 As shown, the plastering assembly includes a material storage tank 17, a plastering head 18, a delivery pump (not shown in the figure), and a delivery pipe 19. The material storage tank 17 is mounted on the support plate 3. The plastering head 18 is slidably mounted on the two second support sections 7 in the vertical direction. Specifically, a drive block 20 is fixedly provided on the side of the plastering head 18 near the second support section 7. The drive block 20 is provided with a third guide groove 21 extending in the vertical direction. The third guide groove 21 includes a convex-shaped limiting section 22 and a rectangular mounting section 23. The limiting section 22 is used to press against the left side of the second support section 7 and engage with the limiting groove 13 of the second support section 7. A drive gear 24 that meshes with the rack plate 15 is provided in the mounting section 23. A rotating shaft is fixedly connected to the axial direction of the drive gear 24. The rotating shaft passes through the drive block 20 in the front-back direction and is rotatably connected to the drive block 20. A second drive motor 25 is fixedly connected to the side of the drive block 20 facing the other second support section 7. The second drive motor 25 is electrically connected to the controller 40. A second coupling (not shown in the figure) is coaxially provided between the output section of the second drive motor 25 and the rotating shaft.

[0044] like Figure 1 and Figure 5As shown, the plastering head 18 extends in the front-to-back direction, and the discharge port 32 on the plastering head 18 faces to the left. The plastering head 18 includes a hopper body 26 and a cover plate 27. A discharge platform 28 extending in the front-to-back direction is provided on the left side of the hopper body 26. Stop strips 29 extending in the left-to-right direction are provided on the front inner side wall and the rear inner side wall of the top of the hopper body 26. A stop groove 30 is provided on the front inner side and the rear inner side of the hopper body 26 near the right inner side. The cover plate 27 is L-shaped. The vertical part of the cover plate 27 abuts against the right inner side wall of the hopper body 26, and the front and rear sides of the vertical part of the cover plate 27 are respectively provided with limiting strips 31 that are adapted to the size of the stop groove 30. A discharge port 32 is formed between the discharge platform 28 and the horizontal portion of the cover plate 27. When the cover plate 27 slides to its lowest position relative to the hopper 26, the horizontal portion of the cover plate 27 contacts the bottom of the discharge platform 28, and the discharge port 32 is closed. When the cover plate 27 slides upward a set distance relative to the hopper 26, a set distance exists between the horizontal portion of the cover plate 27 and the bottom of the discharge platform 28, and the discharge port 32 is opened. The conveying pump is installed inside the storage tank 17. One end of the conveying pipe 19 is connected to the conveying pump, and the other end is connected to the hopper 26. In this embodiment, a clearance groove 33 is provided on the left side of the support plate 3. The clearance groove 33 is used to allow the conveying pipe 19 to pass through when the height of the plaster head 18 is lower than the height of the support plate 3, thereby reducing the wear of the conveying pipe 19 and improving its service life.

[0045] like Figure 1 and Figure 6 As shown, in this embodiment, scraper assemblies are provided on both the front and rear sides of the bottom of the discharge platform 28. The scraper assembly includes a fixed plate 34, an electro-hydraulic push rod 35, and a scraper 36. The fixed plate 34 is fixedly installed at the bottom of the discharge platform 28. The fixed end of the electro-hydraulic push rod 35 is connected to the fixed plate 34, and the axis of the electro-hydraulic push rod 35 extends in the front-rear direction. The electro-hydraulic push rod 35 is electrically connected to the controller 40. The scraper 36 is L-shaped. The vertical part of the scraper 36 is fixedly connected to the movable end of the electro-hydraulic push rod 35. The horizontal part of the scraper 36 extends away from the electro-hydraulic push rod 35 and is close to the bottom of the discharge platform 28. The left side of the horizontal part of the scraper 36 is flush with the left side of the discharge platform 28. When the electro-hydraulic push rod 35 is fully retracted, the distance from the vertical part of the scraper 36 to the corresponding end of the bin 26 is not less than the length of the horizontal section of the scraper 36.

[0046] like Figure 7 As shown, the information control center includes a BIM system based on the architectural design scheme. The BIM system stores building model information and is used for remote monitoring and data transmission of the automatic plastering machine.

[0047] like Figure 1 and Figure 7As shown, the controller 40 is mounted on the support plate 3 and includes a data receiving module, a data sending module, a data processing module, an action module, a data storage module, a data recording module, and a position detection module. The data receiving module receives building model data from the BIM system in the information control center. The signal sending module transmits the automatic plastering machine's work data to the information control center. The data processing module is connected to the data receiving module, data sending module, action module, data storage module, data recording module, and position detection module to process and analyze the data. The action module controls the steering and drive mechanisms to move the automatic plastering machine, controls the mortar delivery pump, controls the movement of the second support section 7 relative to the first support section 6, and controls the movement of the plastering head 18 relative to the second support section 7. The data storage module stores data. The data recording module records the position information of the automatic plastering machine and the position information of the plastering head 18 when it starts or ends plastering. The position detection module locates the position of the automatic plastering machine within the construction floor and the distance between the automatic plastering machine and the construction wall.

[0048] In this embodiment, the controller 40 is electrically connected to a material storage detection unit. The material storage detection unit includes a pressure sensor (not shown in the figure), which is located at the bottom of the material storage tank 17. The pressure sensor signals to the data processing module to detect the remaining amount of mortar in the storage tank and transmits the data to the data processing module. When the mortar in the storage tank does not meet the plastering requirements, the controller 40 sends a signal to the action module and the data recording module. The action module controls the delivery pump to stop working, and the data recording module records the current position and plastering height of the plastering machine. It should be noted that the pressure sensor is existing technology, and its specific structure and working principle will not be described in detail here.

[0049] like Figure 1 As shown, in this embodiment, the controller 40 is electrically connected to a positioning unit, which includes a laser rangefinder 37 and a camera 38. The laser rangefinder 37 is mounted on the base frame 1, and at least two laser rangefinders 37 are mounted on each of the four sides of the base frame 1. The laser rangefinder 37 is used to measure the distance between the automatic plastering machine and the wall. The laser rangefinder 37 is signal-connected to the data processing module to transmit data to the data processing module for analysis of the distance between the automatic plastering machine and the construction wall. The camera 38 is mounted on the front and rear sides of the bottom of the support plate 3 to record the construction environment. The camera 38 is signal-connected to the data processing module to transmit data to the data processing module for comparison and analysis with the building model in the BIM system to determine the position of the automatic plastering machine within the construction floor. It should be noted that the laser rangefinder 37 and the camera 38 are existing technologies, and their specific structures and working principles will not be described in detail here.

[0050] The power bank 39 is detachably mounted between the base frame 1 and the support plate 3, and is electrically connected to the steering mechanism, the drive mechanism, the first drive motor 11, the second drive motor 25, the delivery pump, the controller 40, the pressure sensor, the laser rangefinder 37, and the camera 38.

[0051] The working principle of the automatic plastering machine for the self-lifting intelligent construction platform based on the BIM system of this invention is as follows:

[0052] The data receiving module receives relevant model and dimension data of the building model in the BIM system from the information control center. During the plastering preparation stage, the camera 38 records environmental information, which is analyzed by the data processing module to determine the location of the automatic plastering machine. The laser rangefinder 37 determines the distance between the automatic plastering machine and the wall to be constructed. Based on the model information in the BIM system, the travel route of the automatic plastering machine is planned. The data processing module sends instructions to the action module, which controls the steering mechanism and drive mechanism to move the automatic plastering machine to the construction position. The distance between the automatic plastering machines meets the plastering thickness required when the plastering head 18 is working. The action module controls the first drive motor 11 to rotate, so that the second support section 7 moves to the lowest position relative to the first support section 6. The action module controls the second drive motor 25 to rotate, so that the plastering head 18 moves to the lowest position relative to the second support section 7.

[0053] During the plastering process, the data processing module sends instructions to the action module, which controls the conveying pump to operate. Mortar reaches the silo 26 through the conveying pipe 19. Under the action of the cover plate 27, the mortar first fills the silo 26 and then lifts the cover plate 27 to open the discharge port 32. The data processing module uses the distance to the wall measured by the laser rangefinder 37 to determine the distance between the two ends of the discharge port 32 and the corresponding wall. When the distance is greater than the extension length of the scraper 36, the electro-hydraulic extension is controlled to extend the scraper 36. The action module controls the second drive motor 25 to rotate, causing the plastering head 18 to move upward relative to the second support section 7 to start the plastering operation. The data processing module determines the distance the plastering head 18 moves relative to the second support section 7 based on the operation time of the second drive motor 25. When the plaster head 18 moves to the top relative to the second support section 7, the action module controls the first drive motor 11 to rotate, causing the second support section 7 to move upward relative to the first support section 6. The data processing module determines the distance the second support section 7 moves relative to the first support section 6 based on the operation time of the first drive motor 11. When the plaster head 18 moves to the highest position relative to the construction wall, the action module controls the first drive motor 11 and the second drive motor 25 to rotate in opposite directions, causing the second support section 7 and the plaster head 18 to reset. The action module controls the electric hydraulic push rod 35 to retract to retract the scraper 36. The action module controls the drive mechanism to operate, causing the automatic plastering machine to move the plaster head 18 a distance parallel to the construction wall to perform plastering work on the next part of the construction wall.

[0054] During construction, the pressure sensor transmits the mortar pressure data measured in the storage tank 17 back to the data processing module. When the pressure reading is less than the pressure setting value that can meet the normal plastering volume, the data processing module sends a command to the action module. The action module controls the material pump to stop working, and the data recording module records the current position of the automatic plastering machine and the position of the plastering head 18. The action module controls the first drive motor 11 and the second drive motor 25 to work, resetting the second support section 7 and the plastering head 18. The data processing module transmits the data to the information control center to wait for the addition of mortar to the storage tank 17. After the mortar is added, the data processing module moves the automatic plastering machine to the interrupted construction position according to the data recording module, and controls the plastering head 18 to move to the interrupted plastering position through the action module, so as to continue the construction.

[0055] The automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system, as described in this invention, has the following advantages:

[0056] 1. The data receiving module and data sending module can retrieve the dimensional data of the construction mechanism. With the help of the data processing module, action module and position detection module, the automatic plastering machine can automatically adjust its position and perform continuous plastering operations, thereby improving the intelligent construction of the automatic plastering machine, reducing the use of manual labor and greatly reducing construction costs.

[0057] 2. By using a cantilevered support plate, the first and second support rods are positioned on one side of the automatic plastering machine. Through the movement of the first support section relative to the second support section, and the movement of the plastering head relative to the second support section, the plastering range is maximized, avoiding subsequent manual plastering and resulting in high construction efficiency.

[0058] 3. By installing a cover plate at the plastering head, the mortar is delivered into the silo through the conveying pipe before plastering. The mortar first fills the internal space of the silo, and then the cover plate is lifted to open the outlet. This ensures that mortar can appear at the outlet at the same time when the plastering head starts working, thus ensuring the plastering effect.

[0059] 4. By setting up a material storage detection unit, the remaining amount of mortar in the storage box is monitored to avoid empty pipes in the delivery pipes during mortar pumping, thus ensuring the quality of plastering work.

[0060] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system, characterized in that, include: The moving component includes a base frame and rollers. The length direction of the base frame is defined as the front-to-back direction, and the width direction of the base frame is defined as the left-to-right direction. The rollers are symmetrically arranged on the left and right sides of the base frame, and there are two sets in the front-to-back direction. One set of rollers on the front side of the base frame is a steering wheel, and the other set on the rear side of the base frame is a drive wheel. A steering mechanism is provided on the base frame corresponding to the steering wheel, and a drive mechanism is provided on the base frame corresponding to the drive wheel. The support frame includes a support plate and a support column. The support plate is horizontally arranged, and the support column is fixedly connected between the support plate and the base frame. The width of the support plate is greater than the width of the roller in the left and right direction to be cantilevered. The cantilevered part is provided with support ribs that are connected to the support column. The support assembly includes two sets of support rods and a connecting rod connecting the two support rods. Each support rod includes a first support section and a second support section. The first support section is fixedly installed on the left side of the top surface of the support plate, and the second support section is slidably assembled on the left side of the first support rod in the vertical direction. The plastering assembly includes a storage bin, a plastering head, a conveying pump, and a conveying pipe. The storage bin is mounted on a support plate. The plastering head is slidably mounted on two second support sections in the vertical direction. The plastering head extends in the front-back direction and the outlet of the plastering head faces to the left. The conveying pump is located inside the storage bin. One end of the conveying pipe is connected to the conveying pump, and the other end is connected to the plastering head. The information control center includes a BIM system built based on the architectural design scheme. The BIM system stores building model information. The information control center is used for remote monitoring and data transmission of the automatic plastering machine. The controller, mounted on the support plate, includes a data receiving module, a data sending module, a data processing module, an action module, a data storage module, a data recording module, and a position detection module. The data receiving module receives building model data from the BIM system in the information control center. The signal sending module transmits the work data of the automatic plastering machine to the information control center. The data processing module is connected to the data receiving module, data sending module, action module, data storage module, data recording module, and position detection module to process and analyze the data. The action module controls the steering mechanism and drive mechanism to move the automatic plastering machine, controls the conveying pump to deliver mortar, controls the movement of the second support section relative to the first support section, and controls the movement of the plastering head relative to the second support section. The data storage module stores data. The data recording module records the position information of the plastering head when it starts or ends plastering. The position detection module locates the position of the automatic plastering machine within the construction floor and the distance between the automatic plastering machine and the construction wall. The portable power bank is detachably mounted between the base frame and the support plate, and is electrically connected to the steering mechanism, the drive mechanism, the delivery pump, and the controller, respectively. The first support section is provided with a first guide groove extending vertically in a convex cross-section. The opening of the first guide groove faces to the left. At least two first sliding blocks are slidably assembled in the first guide groove. The size of the first sliding blocks is adapted to the size of the first guide groove. The end of the first sliding block facing the second support section is fixedly connected to the second support section. A screw extending vertically is threadedly connected to the first sliding block. The bottom end of the screw is rotatably connected to the support plate. A first drive motor is fixedly installed at the top of the first support section. The first drive motor is electrically connected to the controller. A first coupling is provided between the output end of the first drive motor and the top end of the screw.

2. The automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system according to claim 1, characterized in that: The second support section has symmetrically arranged limiting grooves extending vertically on both its front and rear sides. A second guide groove extending vertically is arranged on the left side of the second support section, and a rack plate extending vertically is arranged within the second guide groove. Protective plates can be detachably connected to both ends of the second support section. A drive block is fixedly arranged on the side of the plastering head closest to the second support section. A third guide groove extending vertically is arranged on the drive block. The third guide groove includes a convex limiting section and a rectangular mounting section. The limiting section is used to press against the left side of the second support section and engage with the limiting groove of the second support section. A drive gear meshing with the rack plate is arranged within the mounting section. A rotating shaft is fixedly connected axially to the drive gear. The rotating shaft passes through the drive block in the front-rear direction and is rotatably connected to the drive block. A second drive motor is fixedly connected to the side of the drive block facing the other second support section. The second drive motor is electrically connected to the controller. A second coupling is arranged between the output section of the second drive motor and the rotating shaft.

3. The automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system according to claim 2, characterized in that: The controller is electrically connected to a material storage detection unit, which includes a pressure sensor located at the bottom of the material storage tank. The pressure sensor sends signals to the data processing module to detect the remaining amount of mortar in the storage tank and transmits the data to the data processing module. When the mortar in the storage tank does not meet the plastering requirements, the controller sends signals to the action module and the data recording module. The action module controls the delivery pump to stop working, and the data recording module records the current position and plastering height of the plastering machine.

4. The automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system according to any one of claims 1-3, characterized in that: The plastering head includes a hopper and a cover plate. A discharge platform extending in the front-to-back direction is provided on the left side of the hopper. Stop strips extending in the left-to-right direction are provided on the front inner side wall and the rear inner side wall of the top of the hopper. A stop groove is provided on the front inner side and the rear inner side of the hopper near the right inner side. The cover plate is L-shaped. The vertical part of the cover plate abuts against the right inner side wall of the hopper, and the front and rear sides of the vertical part of the cover plate are respectively provided with limiting strips adapted to the size of the stop groove. The discharge port is formed between the discharge platform and the horizontal part of the cover plate. When the cover plate slides to the lowest position relative to the hopper, the horizontal part of the cover plate contacts the bottom of the discharge platform, and the discharge port is closed. When the cover plate slides upward a set distance relative to the hopper, there is a set distance between the horizontal part of the cover plate and the bottom of the discharge platform, and the discharge port is opened.

5. The automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system according to claim 4, characterized in that: Scraper assemblies are provided on both the front and rear sides of the bottom of the discharge platform. The scraper assembly includes a fixed plate, an electro-hydraulic push rod, and a scraper. The fixed plate is fixedly installed at the bottom of the discharge platform. The fixed end of the electro-hydraulic push rod is connected to the fixed plate, and the axis of the electro-hydraulic push rod extends in the front-rear direction. The electro-hydraulic push rod is electrically connected to the controller. The scraper is L-shaped. The vertical part of the scraper is fixedly connected to the movable end of the electro-hydraulic push rod. The horizontal part of the scraper extends away from the electro-hydraulic push rod and is close to the bottom of the discharge platform. The left side of the horizontal part of the scraper is flush with the left side of the discharge platform. When the electro-hydraulic push rod is fully retracted, the distance from the vertical part of the scraper to the corresponding end of the hopper is not less than the length of the horizontal section of the scraper.

6. The automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system according to any one of claims 1-3, characterized in that: The left side of the support plate is provided with a clearance groove, which is used to allow the conveying pipe to pass through when the height of the plaster head is lower than the height of the support plate.

7. The automatic plastering machine for a self-lifting intelligent construction platform based on a BIM system according to any one of claims 1-3, characterized in that: The controller is electrically connected to a positioning unit, which includes a laser rangefinder and a camera. The laser rangefinder is mounted on a base frame, with at least two laser rangefinders on each of the four sides of the base frame. The laser rangefinder is used to measure the distance between the automatic plastering machine and the wall. The laser rangefinder is signal-connected to a data processing module to transmit data to the data processing module for analysis of the distance between the automatic plastering machine and the construction wall. The camera is mounted on the bottom of a support plate to record the construction environment. The camera is signal-connected to the data processing module to transmit data to the data processing module for comparison and analysis with the building model to determine the position of the automatic plastering machine within the construction floor.

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