Outer wall heat insulation coating spraying detection device based on overhead working truck
By using a detection device carried by an aerial work platform to detect the microporosity of exterior wall thermal insulation coatings, the problems of high destructiveness and difficulty in detecting microstructure in existing technologies have been solved, achieving efficient and safe coating performance evaluation.
Patent Information
- Application Number
- CN202610135874.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-30
- Publication Date
- 2026-05-01
AI Technical Summary
Existing technologies for testing the quality of exterior wall thermal insulation coatings involve significant destructive processes and make it difficult to detect microstructures, especially microporosity, which affects coating performance and building safety.
Design a testing device for exterior wall thermal insulation coating spraying based on an aerial work platform. The aerial work platform is used as a mobile carrier to perform in-situ microporosity testing through testing components. Combined with protective components to protect the testing equipment, non-destructive testing is achieved.
It enables rapid and safe testing of exterior wall coatings on high-rise buildings, reduces testing difficulty and risks, improves testing accuracy and efficiency, and ensures accurate evaluation of coating performance.
Smart Images
Figure CN121954786A_ABST
Abstract
Description
A detection device for exterior wall thermal insulation coating spraying based on an aerial work platform. Technical Field
[0001] This application relates to the field of paint spraying inspection technology, and in particular to an external wall thermal insulation paint spraying inspection device based on an aerial work platform. Background Technology
[0002] Exterior wall thermal insulation coating spraying refers to the application of special coatings with heat-reflective or heat-barrier functions to the surface of building exterior walls, thereby reducing heat gain in the building envelope and improving energy efficiency. The quality of this coating directly affects the building's long-term energy performance, durability, and safety. Therefore, rigorous quality testing of the coating after construction is crucial to ensure uniform coating thickness, firm adhesion, and verification that its actual thermal insulation performance meets design standards, thus guaranteeing project quality and investment returns.
[0003] In existing technologies, conventional techniques for on-site testing of the quality of exterior wall thermal insulation coatings mainly fall into two categories: one is to destructively cut and sample the coating using a sampler or knife, bringing the sample back to the laboratory for analysis of composition, thickness, and adhesion; the other is to use equipment such as heat flow meters or infrared thermal imagers to conduct in-situ tests on the thermal insulation performance of the coated area. Existing technologies generally focus on the macroscopic physical properties of the coating and the final thermal insulation effect, with their testing logic aimed at verifying whether the coating "exists" and "is effective."
[0004] Regarding the aforementioned technologies, destructive sampling can damage the intact coating, affecting the building's appearance and waterproofing continuity. Furthermore, the limited sample size makes it difficult to represent the overall quality. Moreover, existing technologies typically lack effective detection of the coating's key microstructure—especially microporosity. Too low microporosity may lead to decreased coating flexibility and poor breathability, making it prone to cracking under temperature stress or hindering the dissipation of moisture from inside the wall, causing blistering and peeling. Too high microporosity will significantly reduce the coating's density, mechanical strength, and weather resistance, making it easier for moisture and corrosive media to penetrate. Therefore, improvements are needed. Summary of the Invention
[0005] To address the aforementioned problems, this application provides an external wall thermal insulation coating spraying detection device based on an aerial work platform vehicle.
[0006] This application provides an external wall thermal insulation coating spraying inspection device based on an aerial work platform, which adopts the following technical solution: An external wall thermal insulation coating spraying inspection device based on an aerial work platform includes a vehicle body, an extension arm is provided on the vehicle body, a horizontal adjustment platform is rotatably provided at the end of the extension arm away from the vehicle body, an installation platform is rotatably mounted on the horizontal adjustment platform, an adjustment mechanism is provided on the horizontal adjustment platform for adjusting the angle between the installation platform and the wall so that the installation platform is perpendicular to the wall to be inspected, a detection cylinder is provided on the installation platform, a detection component is provided inside the detection cylinder for detecting the internal microporosity of the coating on the wall that has been sprayed with thermal insulation coating, and a protective component is provided on the outer wall of the detection cylinder for protecting the detection component inside the detection cylinder.
[0007] By adopting the above technical solution, the vehicle body is moved below the detection area, and the extension arm is extended to the target height. The installation platform is rotated by the adjustment mechanism on the horizontal adjustment platform to keep it perpendicular to the wall. Then, the detection cylinder on the installation platform is brought close to the wall, and the internal detection components are used to detect the microporosity of the coating. This application can detect and judge the density of the coating by detecting the microporosity of the coating. If the density is too high, water vapor may not be able to escape, which may lead to internal bubbling, condensation in winter, etc. If the density is too low, the porosity will be high, affecting the heat insulation and waterproof performance. Moreover, compared with the prior art, which requires cutting and sending samples back to the laboratory for testing, this application uses an aerial work platform as a mobile and lifting carrier to achieve rapid arrival and in-situ testing of the exterior wall coating of high-rise buildings, and greatly reduces the difficulty and danger of high-altitude testing operations. In addition, the protective components prevent damage to the detection components from vehicle movement or vibration when the machine is stopped.
[0008] Optionally, the adjustment mechanism includes a first mounting ear plate, a second mounting ear plate, a first fixing rod, a second fixing rod, a first rotating plate, a rotating rod, a rotating rod, a second rotating plate, and a first telescopic cylinder. Two sets of the first mounting ear plates are provided, with both sets of the first mounting ear plates fixedly and parallel to the end of the extension arm away from the vehicle body. The two ends of the first fixing rod are respectively vertically fixed to the ends of the two sets of the first mounting ear plates near the extension arm. Two sets of the first rotating plates are provided in parallel, with one end of each set of the first rotating plates rotatably mounted on the first fixing rod. The rotating rod is fixedly mounted to the end of the two sets of the first rotating plates away from the first fixing rod. The two ends of the second fixing rod are respectively vertically fixed to the two sets of the first mounting ear plates and located on the first mounting ear plates away from the extension arm. At the end of the extendable arm, two sets of second mounting ears are provided, and the two sets of second mounting ears are fixedly and parallelly disposed on the end of the horizontal adjustment platform near the extendable arm. The ends of the second mounting ears away from the horizontal adjustment platform are rotatably connected to both ends of the second fixed rod. The rotating rod is vertically and fixedly disposed on the end of the second mounting ears near the horizontal adjustment platform. Two sets of second rotating plates are arranged in parallel, with one end of each set of second rotating plates rotatably connected to both ends of the rotating rod, and the other end rotatably connected to both ends of the rotating rod. Two sets of first telescopic cylinders are arranged in parallel, with the telescopic ends of each set of first telescopic cylinders rotatably connected to both ends of the rotating rod, and the fixed ends of each set of first telescopic cylinders rotatably connected to the end of the horizontal adjustment platform away from the extendable arm.
[0009] By adopting the above technical solution, the two sets of first telescopic cylinders extend or retract synchronously, driving the rotating rod to move. The rotating rod is pulled or pushed by the two sets of second rotating plates, thereby causing the horizontal adjustment platform connected by the second mounting lug to pitch and rotate around its hinge point with the second fixed rod. At the same time, the first rotating plate swings around the first fixed rod with the movement of the rotating rod, providing support and motion guidance for the entire linkage mechanism. This application not only provides sufficient adjustment torque to overcome the influence of high-altitude wind load and equipment self-weight, but also eliminates the jamming or off-center load that may be caused by single-point drive, ensuring that the angle adjustment process is smooth and vibration-free, thereby enabling the installation platform to be quickly and accurately adjusted to a state perpendicular to the wall at any tilt angle.
[0010] Optionally, the detection assembly includes a camera group, a convex lens, a glass plate, a ring light source, and a gas delivery pipe. The detection cylinder has a first cylindrical groove, a conical groove, and a second cylindrical groove. The conical groove is located between the first and second cylindrical grooves, and the first cylindrical groove, the conical groove, and the second cylindrical groove are connected. The diameter of the first cylindrical groove is the same as the diameter of the smaller end of the conical groove, and the diameter of the second cylindrical groove is the same as the diameter of the larger end of the conical groove. The second cylindrical groove is located close to the wall. The camera group is located within the first cylindrical groove, at the end of the first cylindrical groove furthest from the conical groove. The convex lens is located within the first cylindrical groove, at the end of the first cylindrical groove closest to the conical groove. The diameter of the glass plate is larger than that of the first cylindrical groove. The glass plate is disposed in the second cylindrical groove and located at the end of the second cylindrical groove near the conical groove. The diameter of the glass plate is the same as that of the second cylindrical groove. The ring light source is disposed in the second cylindrical groove and located on the side of the glass plate away from the convex lens. The gas delivery pipe is disposed at the end of the detection cylinder away from the wall. A gas delivery channel is opened in the detection cylinder. One end of the gas delivery channel is connected to the gas delivery pipe, and the other end is connected to the conical groove. When detecting the wall, the second cylindrical groove, the glass plate, and the wall form a sealed space. The camera group is used to perform image recognition of water droplets condensed on the glass plate and to monitor the temperature of the glass plate.
[0011] By adopting the above technical solution, during detection, a ring light source is turned on, and cold air is delivered to the gas delivery channel through a gas delivery pipe. The cold air enters the conical groove and cools the glass slide. When the temperature drops to the dew point of the air on the back of the coating, tiny dew droplets will begin to condense on the mirror surface. The camera group observes and receives the moment when the first dew droplet appears on the glass slide surface through a convex lens and magnifies it. The temperature of the mirror surface at this moment is immediately read, which is the dew point temperature. By combining the known temperature and humidity of the environment with the measured dew point temperature on the back of the coating, the permeability of water vapor through the coating can be calculated. In this way, the measured temperature difference can be directly converted into a qualitative classification of the coating porosity.
[0012] Optionally, the protective assembly includes a movable cylinder, a rotating cylinder, a fixed cylinder, a second telescopic cylinder, a push ring, a protective plate, a first limiting block, a second limiting block, and a rotating structure. The fixed cylinder is fixedly mounted on the mounting platform and sleeved on the outer wall of the detection cylinder away from the wall. The movable cylinder is sleeved on the outer wall of the detection cylinder near the wall and is inserted and connected to the fixed cylinder along the length of the detection cylinder. The rotating cylinder is sleeved on the outer wall of the fixed cylinder near the wall and is rotatably connected to the movable cylinder. Multiple sets of protective plates are provided, each set positioned between the movable cylinder and the rotating cylinder. Multiple sets of the first and second limiting blocks are provided corresponding to the protective plates. The first limiting block is fixedly mounted on the side of the protective plate near the movable cylinder, and the second limiting block is fixedly mounted on the side of the protective plate near the rotating cylinder. The movable cylinder has polygonal annular grooves on the side near the protective sheet corresponding to multiple sets of first limiting blocks. The rotating cylinder has multiple limiting grooves on the side near the protective sheet corresponding to multiple sets of second limiting blocks. The multiple limiting grooves are staggered with multiple sides of the polygonal annular grooves on the vertical projection plane. The second telescopic cylinder is fixedly mounted on the mounting platform. The pushing ring is mounted on the telescopic end of the second telescopic cylinder, and the end of the pushing ring away from the second telescopic cylinder is rotatably connected to the end of the rotating cylinder away from the wall. The rotating structure is located between the rotating cylinder and the fixed cylinder, and is used to drive the rotating cylinder to move along the length direction of the detection cylinder when the pushing ring pushes the rotating cylinder to move. A sealing layer is pasted on the side of the rotating cylinder near the wall to improve the sealing between the rotating cylinder and the wall when the rotating cylinder abuts against the wall.
[0013] By adopting the above technical solution, the second telescopic cylinder drives the rotating cylinder to move towards the wall by pushing the ring. The rotating structure converts this linear movement into a specific angle rotation of the rotating cylinder. When the rotating cylinder rotates, the limiting groove on it drives the protective plate to rotate through the second limiting block. The first limiting block on the protective plate is constrained in the polygonal annular groove of the moving cylinder and can only slide along the groove. This motion constraint forces multiple sets of protective plates to move radially in an unfolding or retracting manner. When the rotating cylinder moves forward until the sealing layer on its end face is pressed against the wall, the protective plate is completely retracted to the inner wall of the rotating cylinder, exposing the detection window. This protective component realizes the automatic, linkage-type opening, closing and sealing of the detection window. When the device is moving or in standby mode, the protective plate is in the unfolded state covering the front end of the detection cylinder, providing comprehensive physical protection for the glass plate and the ring light source, preventing bumps, scratches and contamination. After the sealing layer on the end face of the rotating cylinder is pressed against the wall, it can form a closed detection dark chamber together with the glass plate, effectively isolating external light interference and stabilizing the internal detection environment, greatly improving the accuracy and environmental adaptability of optical detection.
[0014] Optionally, the rotating structure includes a straight groove, an arc groove, and a movable protrusion. The straight groove is formed on the outer wall of the fixed cylinder along the length direction of the fixed cylinder. The arc groove is spirally formed on the outer wall of the fixed cylinder. The straight groove is located at the end of the arc groove away from the wall and communicates with the arc groove. The movable protrusion is fixedly disposed on the inner wall of the rotating cylinder and slidably disposed within the arc groove and the straight groove.
[0015] By adopting the above technical solution, when the second telescopic cylinder pushes the rotating cylinder to move axially, the movable protrusion fixed to the inner wall of the rotating cylinder first slides in the straight groove, at which time the rotating cylinder only performs linear motion; when the movable protrusion slides to the end of the straight groove and enters the arc groove, the continued axial thrust forces the movable protrusion to move along the spiral arc groove, thereby driving the rotating cylinder to generate rotational motion while continuing to move axially.
[0016] Optionally, each of the multiple sets of protective plates is provided with a clearance groove. When the multiple sets of protective plates are closed, the multiple sets of clearance grooves are connected to form a ring to avoid the ring light source. A wiping layer is provided on the side of the protective plate near the glass plate. A first drive motor is fixedly installed on the mounting platform. A first gear is fixedly sleeved on the output shaft of the first drive motor. A first toothed ring is fixedly sleeved on the outer wall of the end of the detection cylinder away from the wall. The first gear and the first toothed ring mesh with each other.
[0017] By adopting the above technical solution, when the protective plates are retracted and closed, the avoidance grooves on each protective plate are combined to form a complete annular space, which surrounds the annular light source to achieve avoidance. At this time, the wiping layer abuts against the outer surface of the glass plate. Then, the first drive motor is started, and through the meshing transmission of the first gear and the first gear ring, the detection cylinder is driven to rotate around its own axis, causing the glass plate to rotate synchronously and to slide and rub against the wiping layer. This can effectively remove water stains and dust adhering to the outer surface of the glass plate, ensuring the long-term cleanliness of the optical window and maintaining the best light transmittance and imaging clarity. After wiping is completed, the second telescopic cylinder drives the rotating cylinder to move towards the wall through the push ring until the moving protrusion moves to the end of the straight groove near the arc groove, thus realizing the separation of the wiping layer from the glass plate.
[0018] Optionally, a rotating shaft is rotatably mounted on the horizontal adjustment platform, the mounting platform is fixedly mounted on the rotating shaft, a second drive motor is mounted on the horizontal adjustment platform, a second gear is mounted on the output shaft of the second drive motor, and a second gear ring is mounted on the rotating shaft, with the second gear and the second gear ring meshing with each other.
[0019] By adopting the above technical solution, the second drive motor starts, driving the second gear on its output shaft to rotate. The second gear meshes with the second gear ring fixed on the rotating shaft, thereby transmitting the rotational motion of the motor to the rotating shaft. This drives the rotating shaft and the mounting platform fixedly connected to it to rotate horizontally around the axis of the rotating shaft. Combined with the extension and folding of the extension arm and the pitch adjustment mechanism, the detection device can reach and align with any position and angle on the wall in three-dimensional space. This expands the detection range after a single stop, reduces the number of times the aerial work platform needs to be moved and adjusted, and thus improves the overall efficiency and coverage of aerial inspection operations.
[0020] Optionally, a negative pressure cylinder is fixedly sleeved on the outer wall of the rotating cylinder, a negative pressure space is opened inside the negative pressure cylinder, an air extraction pipe is provided at the end of the negative pressure cylinder away from the wall, and multiple sets of negative pressure ports are opened at the end of the negative pressure cylinder close to the wall. The air extraction pipe, the negative pressure space and the negative pressure ports are connected.
[0021] By adopting the above technical solution, an external vacuum generator is connected through an air extraction pipe to extract air from the negative pressure space inside the negative pressure cylinder, creating a negative pressure inside. This negative pressure acts on the contact area between the negative pressure cylinder and the wall through multiple sets of negative pressure ports opened on the end face of the negative pressure cylinder. This effectively counteracts the possible slight swaying of the aerial work platform itself, the impact of high-altitude wind, and the weight of the device itself, ensuring a high relative positional stability between the detection cylinder and the detection point on the wall during the detection process, and reducing image blurring or data drift caused by equipment shaking.
[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The vehicle body is moved below the detection area, and the extension arm is extended to the target height. The installation platform is rotated by the adjustment mechanism on the horizontal adjustment platform to keep it perpendicular to the wall. Then, the detection cylinder on the installation platform is brought close to the wall, and the internal detection components are used to detect the microporosity of the coating. This application can detect and judge the density of the coating by detecting the microporosity of the coating. If the density is too high, water vapor may not be able to escape, which may lead to internal bubbling, condensation in winter, etc. If the density is too low, the porosity will be high, affecting the heat insulation and waterproof performance, etc. Moreover, compared with the prior art, which requires cutting and sending samples back to the laboratory for testing, this application uses an aerial work platform as a mobile and lifting carrier to achieve rapid arrival and in-situ testing of the exterior wall coating of high-rise buildings, and greatly reduces the difficulty and danger of high-altitude testing operations. In addition, the protective components prevent damage to the detection components caused by vehicle movement or vibration when the machine is stopped; 2. The ring light source is turned on during testing. The gas delivery pipe delivers cold air to the gas delivery channel. The cold air enters the conical groove and cools the glass slide. When the temperature drops to the dew point of the air behind the coating, tiny dewdrops begin to condense on the mirror surface. The camera group observes and magnifies the moment when the first dewdrop appears on the glass slide surface through the convex lens, and immediately reads the temperature of the mirror surface at this time, which is the dew point temperature. By combining the known temperature and humidity of the environment with the measured dew point temperature on the back of the coating, the permeability of water vapor through the coating can be calculated. Thus, the measured temperature difference can be directly converted into a qualitative classification of the coating porosity. 3. The protective component realizes the automatic, linkage-type opening, closing and sealing of the detection window. When the device is moving or in standby mode, the protective sheet is in the unfolded state, covering the front end of the detection cylinder, providing comprehensive physical protection for the glass slide and the ring light source, preventing bumps, scratches and contamination. After the sealing layer on the end face of the rotating cylinder is pressed against the wall, it can form a closed detection dark chamber together with the glass slide, effectively isolating external light interference and stabilizing the internal detection environment, greatly improving the accuracy of optical detection and environmental adaptability. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 is an enlarged schematic diagram of part A of Figure 1; Figure 3 is a schematic diagram of part of the structure of Figure 2; Figure 4 is a cross-sectional schematic diagram of part of the structure of Figure 3; Figure 5 is an exploded schematic diagram of part of the structure of Figure 3; Figure 6 is another perspective of Figure 5.
[0025] Reference numerals: 1. Vehicle body; 11. Extendable arm; 12. Horizontal adjustment platform; 13. Mounting platform; 131. Detection cylinder; 2. Adjustment mechanism; 21. First mounting lug; 22. Second mounting lug; 23. First fixing rod; 24. Second fixing rod; 25. First rotating plate; 26. Rotating rod; 27. Rotating rod; 28. Second rotating plate; 29. First telescopic cylinder; 3. Detection assembly; 31. Camera assembly; 32. Convex lens; 33. Glass plate; 34. Ring light source; 35. Gas delivery pipe; 4. Protective assembly; 41. Moving cylinder; 411. Polygonal annular groove; 42. Rotating cylinder; 421. Limiting groove; 43. Fixed cylinder; 44. Second telescopic cylinder; 45. Pushing ring; 46. Protective plate; 47. First limiting block; 48. Second limiting block; 49. Rotating structure; 491. Straight groove; 492. Arc groove; 493. Moving protrusion; 5. Clearance groove; 6. First drive motor; 61. First gear; 62. First gear ring; 7. Second drive motor; 71. Second gear; 72. Second gear ring; 8. Negative pressure cylinder; 81. Air extraction pipe. Detailed Implementation
[0026] The present application will be further described in detail below with reference to Figures 1-6.
[0027] This application discloses an external wall thermal insulation coating spraying inspection device based on an aerial work platform. Referring to Figures 1, 2, and 3, the device includes a vehicle body 1, an extension arm 11 mounted on the vehicle body 1, a horizontal adjustment platform 12 rotatably mounted at the end of the extension arm 11 away from the vehicle body 1, an installation platform 13 rotatably mounted on the horizontal adjustment platform 12, an adjustment mechanism 2 on the horizontal adjustment platform 12 for adjusting the angle between the installation platform 13 and the wall to make the installation platform 13 perpendicular to the wall being inspected, a detection cylinder 131 mounted on the installation platform 13, a detection component 3 inside the detection cylinder 131 for detecting the internal microporosity of the coating on the wall that has been sprayed with thermal insulation coating, and a protective component 4 on the outer wall of the detection cylinder 131 for protecting the detection component 3 inside the detection cylinder 131.
[0028] The vehicle body 1 is moved to a position below the testing area. The extension arm 11 is operated to extend its end to the target height. The installation platform 13 is driven to rotate by the adjustment mechanism 2 on the horizontal adjustment platform 12, making it perpendicular to the wall. Then, the testing cylinder 131 on the installation platform 13 is moved close to the wall, and the internal testing component 3 is used to test the microporosity of the coating. This application can detect and judge the density of the coating by detecting the microporosity of the coating. If the density is too high, water vapor may not be able to escape, which may lead to internal bubbling, condensation in winter, etc. If the density is too low, the porosity will be high, affecting the heat insulation and waterproof performance. Compared with the prior art, which requires cutting and sending samples back to the laboratory for testing, this application uses an aerial work platform as a mobile and lifting carrier to achieve rapid arrival and in-situ testing of the coating of the exterior wall of high-rise buildings, and greatly reduces the difficulty and danger of high-altitude testing operations. In addition, the protective component 4 prevents the testing component 3 from being damaged by vehicle movement or vibration when the machine is stopped.
[0029] Referring to Figure 2, the adjustment mechanism 2 includes a first mounting ear plate 21, a second mounting ear plate 22, a first fixing rod 23, a second fixing rod 24, a first rotating plate 25, a rotating rod 26, a rotating rod 27, a second rotating plate 28, and a first telescopic cylinder 29. Two sets of first mounting ear plates 21 are provided, with both sets fixedly mounted parallel to each other at the ends of the extension arm 11 away from the vehicle body 1. The two ends of the first fixing rod 23 are respectively vertically fixed to the ends of the two sets of first mounting ear plates 21 near the telescopic arm. Two sets of first rotating plates 25 are provided parallel to each other, with one end of each set rotatably mounted on the first fixing rod 23. The rotating rod 26 is fixedly mounted at the ends of the two sets of first rotating plates 25 away from the first fixing rod 23. The two ends of the second fixing rod 24 are respectively vertically fixed to the two sets of first mounting ear plates 21 and located on the first mounting ear plates. Two sets of second mounting ears 22 are provided at the end away from the extension arm 11, and the two sets of second mounting ears 22 are fixedly and parallelly provided at the end of the horizontal adjustment platform 12 near the extension arm 11. The ends of the second mounting ears 22 away from the horizontal adjustment platform 12 are rotatably connected to the two ends of the second fixed rod 24. The rotating rod 27 is vertically and fixedly provided at the end of the second mounting ears 22 near the horizontal adjustment platform 12. Two sets of second rotating plates 28 are provided in parallel. One end of the two sets of second rotating plates 28 is rotatably connected to the two ends of the rotating rod 26, and the other end is rotatably connected to the two ends of the rotating rod 27. Two sets of first telescopic cylinders 29 are provided in parallel. The telescopic ends of the two sets of first telescopic cylinders 29 are rotatably connected to the two ends of the rotating rod 26, and the fixed ends of the two sets of first telescopic cylinders 29 are rotatably connected to the end of the horizontal adjustment platform 12 away from the extension arm.
[0030] Two sets of first telescopic cylinders 29 extend or retract synchronously, driving the rotating rod 26 to move. The rotating rod 26 pulls or pushes the rotating rod 27 through two sets of second rotating plates 28, thereby causing the horizontal adjustment platform 12 connected by the second mounting ear plate 22 to pitch and rotate around its hinge point with the second fixed rod 24. At the same time, the first rotating plate 25 swings around the first fixed rod 23 with the movement of the rotating rod 26, providing support and motion guidance for the entire linkage mechanism. This application not only provides sufficient adjustment torque to overcome the influence of high-altitude wind load and equipment self-weight, but also eliminates the jamming or off-center load that may be caused by single-point drive, ensuring that the angle adjustment process is smooth and vibration-free, so as to quickly and accurately adjust the mounting platform 13 to a state perpendicular to the wall at any tilt angle.
[0031] Referring to Figures 3 and 4, the detection component 3 includes a camera group 31, a convex lens 32, a glass plate 33, a ring light source 34, and a gas delivery pipe 35. The detection cylinder 131 has a first cylindrical groove, a conical groove, and a second cylindrical groove. The conical groove is located between the first and second cylindrical grooves, and the first cylindrical groove, conical groove, and second cylindrical groove are connected. The diameter of the first cylindrical groove is the same as the diameter of the smaller end of the conical groove, and the diameter of the second cylindrical groove is the same as the diameter of the larger end of the conical groove. The second cylindrical groove is located close to the wall. The camera group 31 is located in the first cylindrical groove at the end of the first cylindrical groove away from the conical groove. The convex lens 32 is located in the first cylindrical groove at the end of the first cylindrical groove close to the conical groove. The diameter of the convex lens 32 is... The diameter of the glass plate 33 is larger than that of the first cylindrical groove. The glass plate 33 is located in the second cylindrical groove and is located at the end of the second cylindrical groove near the conical groove. The diameter of the glass plate 33 is the same as that of the second cylindrical groove. The ring light source 34 is located in the second cylindrical groove and is located on the side of the glass plate 33 away from the convex lens 32. The gas delivery pipe 35 is located at the end of the detection cylinder 131 away from the wall. A gas delivery channel is opened in the detection cylinder 131. One end of the gas delivery channel is connected to the gas delivery pipe 35, and the other end is connected to the conical groove. When detecting the wall, the second cylindrical groove, the glass plate 33 and the wall form a closed space. The camera group 31 is used to perform image recognition of water droplets condensed on the glass plate 33 and to monitor the temperature of the glass plate 33.
[0032] During testing, the ring light source 34 is turned on, and the gas delivery pipe 35 delivers cold air to the gas delivery channel. The cold air enters the conical groove and cools the glass plate 33. When the temperature drops to the dew point of the air on the back of the coating, tiny dew droplets will begin to condense on the mirror surface. The camera group 31 observes and receives the moment when the first dew droplet appears on the surface of the glass plate 33 through the convex lens 32 and immediately reads the temperature of the mirror surface at this time, which is the dew point temperature. By combining the known temperature and humidity of the environment with the measured dew point temperature on the back of the coating, the permeability of water vapor through the coating can be calculated. In this way, the measured temperature difference can be directly converted into a qualitative classification of the coating porosity.
[0033] Referring to Figures 4, 5, and 6, the protective assembly 4 includes a movable cylinder 41, a rotating cylinder 42, a fixed cylinder 43, a second telescopic cylinder 44, a push ring 45, a protective plate 46, a first limiting block 47, a second limiting block 48, and a rotating structure 49. The fixed cylinder 43 is fixedly mounted on the mounting platform 13 and sleeved on the outer wall of the detection cylinder 131 away from the wall. The movable cylinder 41 is sleeved on the outer wall of the detection cylinder 131 near the wall and is inserted and connected to the fixed cylinder 43 along the length of the detection cylinder 131. The rotating cylinder 42 is sleeved on the outer wall of the fixed cylinder 43 near the wall and is rotatably connected to the movable cylinder 41. Multiple sets of protective plates 46 are provided, and all sets of protective plates 46 are provided between the movable cylinder 41 and the rotating cylinder 42. Multiple sets of first limiting blocks 47 and second limiting blocks 48 are provided corresponding to the protective plates 46. The first limiting block 47 is fixedly mounted on the side of the protective plate 46 near the movable cylinder 41, and the second limiting block 48 is fixedly mounted on the side of the protective plate 46 near the rotating cylinder. On one side of 42, the movable cylinder 41 near the protective plate 46 has polygonal annular grooves 411 corresponding to multiple sets of first limiting blocks 47. On the side of the rotating cylinder 42 near the protective plate 46, multiple sets of limiting grooves 421 are provided corresponding to multiple sets of second limiting blocks 48. The multiple sets of limiting grooves 421 are staggered with multiple sides of the polygonal annular grooves 411 on the vertical projection plane. The second telescopic cylinder 44 is fixedly installed on the installation platform 13. The push ring 45 is installed on the telescopic end of the second telescopic cylinder 44, and the end of the push ring 45 away from the second telescopic cylinder 44 is rotatably connected to the end of the rotating cylinder 42 away from the wall. The rotating structure 49 is installed between the rotating cylinder 42 and the fixed cylinder 43. When the push ring 45 pushes the rotating cylinder 42 to move, it drives the rotating cylinder 42 to move and rotate along the length direction of the detection cylinder 131. A sealing layer is pasted on the side of the rotating cylinder 42 near the wall to improve the sealing between the rotating cylinder 42 and the wall.
[0034] The second telescopic cylinder 44 drives the rotating cylinder 42 to move towards the wall via the push ring 45. The rotating structure 49 converts this linear movement into a specific angular rotation of the rotating cylinder 42. When the rotating cylinder 42 rotates, the limiting groove 421 on it drives the protective plate 46 to rotate via the second limiting block 48. The first limiting block 47 on the protective plate 46 is constrained within the polygonal annular groove 411 of the moving cylinder 41 and can only slide along the groove. This motion constraint forces multiple sets of protective plates 46 to move radially in an unfolding or retracting manner. When the rotating cylinder 42 moves forward until the sealing layer at its end face is pressed against the wall, the protective plate 46... The protective component 4 is fully retracted to the inner wall of the rotating cylinder 42, exposing the detection window. This protective component 4 enables automatic and linked opening, closing, and sealing of the detection window. When the device is moving or in standby mode, the protective plate 46 is in an unfolded state, covering the front end of the detection cylinder 131, providing comprehensive physical protection for the glass plate 33 and the ring light source 34, preventing bumps, scratches, and contamination. After the sealing layer on the end face of the rotating cylinder 42 is pressed against the wall, it can form a closed detection dark chamber together with the glass plate 33, effectively isolating external light interference and stabilizing the internal detection environment, greatly improving the accuracy and environmental adaptability of optical detection.
[0035] Referring to Figures 5 and 6, the rotating structure 49 includes a straight groove 491, an arc groove 492, and a movable protrusion 493. The straight groove 491 is formed on the outer wall of the fixed cylinder 43 along the length direction of the fixed cylinder 43. The arc groove 492 is spirally formed on the outer wall of the fixed cylinder 43. The straight groove 491 is located at the end of the arc groove 492 away from the wall and communicates with the arc groove 492. The movable protrusion 493 is fixedly set on the inner wall of the rotating cylinder 42 and slidably set in the arc groove 492 and the straight groove 491.
[0036] When the second telescopic cylinder 44 pushes the rotating cylinder 42 to move axially, the movable protrusion 493 fixed to the inner wall of the rotating cylinder 42 first slides in the straight groove 491, at which time the rotating cylinder 42 only performs linear motion; when the movable protrusion 493 slides to the end of the straight groove 491 and enters the arc groove 492, the continued axial thrust forces the movable protrusion 493 to move along the spiral arc groove 492, thereby driving the rotating cylinder 42 to generate rotational motion while continuing to move axially.
[0037] Referring to Figure 4, each of the multiple sets of protective plates 46 has a clearance groove 5. When the multiple sets of protective plates 46 are closed, the multiple sets of clearance grooves 5 are connected to form a ring to avoid the ring light source 34. A wiping layer is provided on the side of the protective plate 46 near the glass plate 33. A first drive motor 6 is fixedly installed on the mounting platform 13. A first gear 61 is fixedly sleeved on the output shaft of the first drive motor 6. A first toothed ring 62 is fixedly sleeved on the outer wall of the end of the detection cylinder 131 away from the wall. The first gear 61 and the first toothed ring 62 mesh with each other.
[0038] When the protective plates 46 are retracted and closed, the clearance grooves 5 on each protective plate 46 are assembled to form a complete annular space, surrounding the annular light source 34 to achieve clearance. At this time, the wiping layer comes into contact with the outer surface of the glass plate 33. Then, the first drive motor 6 is started, and through the meshing transmission of the first gear 61 and the first gear ring 62, the detection cylinder 131 is driven to rotate around its own axis, causing the glass plate 33 to rotate synchronously and slide against the wiping layer. This effectively removes water stains and dust adhering to the outer surface of the glass plate 33, ensuring the long-term cleanliness of the optical window and maintaining the best light transmittance and imaging clarity. After wiping, the second telescopic cylinder 44 drives the rotating cylinder 42 to move towards the wall through the push ring 45 until the moving protrusion 493 moves to the end of the straight groove 491 near the arc groove 492, thus separating the wiping layer from the glass plate 33.
[0039] Referring to Figure 3, a rotating shaft is rotatably mounted on the horizontal adjustment platform 12, and the mounting platform 13 is fixedly mounted on the rotating shaft. A second drive motor 7 is mounted on the horizontal adjustment platform 12, and a second gear 71 is mounted on the output shaft of the second drive motor 7. A second gear ring 72 is sleeved on the rotating shaft, and the second gear 71 and the second gear ring 72 mesh with each other.
[0040] The second drive motor 7 starts, driving the second gear 71 on its output shaft to rotate. The second gear 71 meshes with the second gear ring 72 fixed on the rotating shaft, thereby transmitting the rotational motion of the motor to the rotating shaft. This drives the rotating shaft and the mounting platform 13 fixedly connected to it to rotate horizontally around the axis of the rotating shaft. Combined with the extension and folding of the extension arm 11 and the pitch of the adjustment mechanism 2, the detection device can reach and align with any position and angle on the wall in three-dimensional space. This expands the detection range after a single stop, reduces the number of times the aerial work platform needs to be moved and adjusted, and thus improves the overall efficiency and coverage of aerial inspection operations.
[0041] Referring to Figures 3 and 4, a negative pressure cylinder 8 is fixedly sleeved on the outer wall of the rotating cylinder 42. A negative pressure space is opened inside the negative pressure cylinder 8. An air extraction pipe 81 is provided at the end of the negative pressure cylinder 8 away from the wall. Multiple sets of negative pressure ports are opened at the end of the negative pressure cylinder 8 close to the wall. The air extraction pipe 81, the negative pressure space and the negative pressure ports are connected.
[0042] The air is drawn from the negative pressure space inside the negative pressure cylinder 8 by connecting the air extraction pipe 81 to an external vacuum generator, creating a negative pressure inside. This negative pressure acts on the contact area between the negative pressure cylinder 8 and the wall through multiple sets of negative pressure ports opened on the end face of the negative pressure cylinder 8. This effectively counteracts the possible slight shaking of the aerial work platform itself, the impact of high-altitude wind, and the weight of the device itself, ensuring that the detection cylinder 131 and the detection point on the wall maintain a high relative positional stability during the detection process, and reducing image blurring or data drift caused by equipment shaking.
[0043] The implementation principle of the external wall thermal insulation coating spraying detection device based on the aerial work platform in this application is as follows: When it is necessary to perform in-situ, non-destructive microporosity detection on the external wall thermal insulation coating, the operating vehicle 1 is moved to the area below the detection area, the extension arm 11 is operated to extend its end to the target height, and the detection cylinder 131 on the mounting platform 13 is operated to be close to the wall surface. Then, the ring light source 34 is turned on, and the gas delivery pipe 35 delivers cold air to the gas delivery channel. The cold air enters the conical groove and cools the glass plate 33. When the temperature drops to the dew point of the air on the back of the coating, tiny dew droplets will begin to condense on the mirror surface. The camera group 31 observes and receives the moment when the first dew droplet appears on the surface of the glass plate 33 through the convex lens 32 and immediately reads the temperature of the mirror surface at this time, which is the dew point temperature. By combining the known temperature and humidity of the environment with the measured dew point temperature on the back of the coating, the permeability of water vapor through the coating can be calculated. In this way, the measured temperature difference can be directly converted into a qualitative classification of the coating porosity.
[0044] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0045] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A device for detecting the spraying of exterior wall thermal insulation coatings based on an aerial work platform, characterized in that: The system includes a vehicle body (1), an extension arm (11) is provided on the vehicle body (1), a horizontal adjustment platform (12) is rotatably provided at the end of the extension arm (11) away from the vehicle body (1), an installation platform (13) is rotatably installed on the horizontal adjustment platform (12), an adjustment mechanism (2) is provided on the horizontal adjustment platform (12) for adjusting the angle between the installation platform (13) and the wall so that the installation platform (13) is perpendicular to the wall being tested, a detection cylinder (131) is provided on the installation platform (13), a detection component (3) is provided inside the detection cylinder (131) for detecting the internal microporosity of the coating on the wall that has been sprayed with heat insulation coating, and a protective component (4) is provided on the outer wall of the detection cylinder (131) for protecting the detection component (3) inside the detection cylinder (131).
2. The external wall thermal insulation coating spraying detection device based on an aerial work platform according to claim 1, characterized in that: The adjustment mechanism (2) includes a first mounting ear plate (21), a second mounting ear plate (22), a first fixing rod (23), a second fixing rod (24), a first rotating plate (25), a rotating rod (26), a rotating rod (27), a second rotating plate (28), and a first telescopic cylinder (29). Two sets of the first mounting ear plates (21) are provided, with the two sets of first mounting ear plates (21) fixedly and parallelly disposed at the ends of the extension arm (11) away from the vehicle body (1). The two ends of the first fixing rod (23) are respectively vertically fixed at the ends of the two sets of first mounting ear plates (21) near the telescopic arm. Two sets of the first rotating plates (25) are provided in parallel, with one end of each set of first rotating plates (25) rotatably disposed on the first fixing rod (23). The rotating rod (26) is fixedly disposed at the ends of the two sets of first rotating plates (25) away from the first fixing rod (23). The two ends of the second fixing rod (24) are respectively vertically fixed on the two sets of first mounting ear plates (21) and located at the first mounting ear plate. The plate (21) is located away from the end of the extension arm (11). Two sets of second mounting ear plates (22) are provided, and the two sets of second mounting ear plates (22) are fixedly and parallelly provided at the end of the horizontal adjustment platform (12) near the extension arm (11). The end of the second mounting ear plate (22) away from the horizontal adjustment platform (12) is rotatably connected to both ends of the second fixed rod (24). The rotating rod (27) is vertical and fixedly provided at the end of the second mounting ear plate (22) near the horizontal adjustment platform (12). Two sets of second rotating plates (28) are provided in parallel. One end of the two sets of second rotating plates (28) is rotatably connected to both ends of the rotating rod (26), and the other end is rotatably connected to both ends of the rotating rod (27). Two sets of first telescopic cylinders (29) are provided in parallel. The telescopic ends of the two sets of first telescopic cylinders (29) are rotatably connected to both ends of the rotating rod (26), and the fixed ends of the two sets of first telescopic cylinders (29) are rotatably connected to the end of the horizontal adjustment platform (12) away from the extension arm.
3. The external wall thermal insulation coating spraying detection device based on an aerial work platform according to claim 1, characterized in that: The detection component (3) includes a camera group (31), a convex lens (32), a glass plate (33), a ring light source (34), and a gas delivery pipe (35). The detection cylinder (131) has a first cylindrical groove, a conical groove, and a second cylindrical groove. The conical groove is located between the first cylindrical groove and the second cylindrical groove, and the first cylindrical groove, the conical groove, and the second cylindrical groove are connected. The diameter of the first cylindrical groove is the same as the diameter of the smaller end of the conical groove, and the diameter of the second cylindrical groove is the same as the diameter of the larger end of the conical groove. The second cylindrical groove is located close to the wall. The camera group (31) is located in the first cylindrical groove and at the end of the first cylindrical groove away from the conical groove. The convex lens (32) is located in the first cylindrical groove and at the end of the first cylindrical groove close to the conical groove. The diameter of the convex lens (32) is larger than that of the first cylindrical groove. The diameter of the glass plate (33) is set in the second cylindrical groove and located at the end of the second cylindrical groove near the conical groove. The diameter of the glass plate (33) is the same as the diameter of the second cylindrical groove. The ring light source (34) is set in the second cylindrical groove and located on the side of the glass plate (33) away from the convex lens (32). The gas delivery pipe (35) is set at the end of the detection cylinder (131) away from the wall. A gas delivery channel is opened in the detection cylinder (131). One end of the gas delivery channel is connected to the gas delivery pipe (35), and the other end is connected to the conical groove. When the wall is detected, the second cylindrical groove, the glass plate (33) and the wall form a closed space. The camera group (31) is used to perform image recognition on the water droplets condensed on the glass plate (33) and to monitor the temperature of the glass plate (33).
4. A device for detecting the spraying of exterior wall thermal insulation coating based on an aerial work platform according to claim 3, characterized in that: The protective assembly (4) includes a movable cylinder (41), a rotating cylinder (42), a fixed cylinder (43), a second telescopic cylinder (44), a push ring (45), a protective plate (46), a first limiting block (47), a second limiting block (48), and a rotating structure (49). The fixed cylinder (43) is fixedly mounted on the mounting platform (13) and sleeved on the outer wall of the detection cylinder (131) away from the wall. The movable cylinder (41) is sleeved on the outer wall of the detection cylinder (131) close to the wall and is inserted into the fixed cylinder (43) along the length of the detection cylinder (131). The rotating cylinder (42) is fitted onto the outer wall of the fixed cylinder (43) near the wall and is rotatably connected to the moving cylinder (41). Multiple sets of protective plates (46) are provided, and each set of protective plates (46) is provided between the moving cylinder (41) and the rotating cylinder (42). Multiple sets of first limiting blocks (47) and second limiting blocks (48) are provided corresponding to the protective plates (46). The first limiting block (47) is fixedly provided on the side of the protective plate (46) near the moving cylinder (41), and the second limiting block (48) is fixedly provided on the side of the protective plate (46) near the rotating cylinder. On one side of (42), the movable cylinder (41) near the protective plate (46) has polygonal annular grooves (411) corresponding to multiple sets of first limiting blocks (47), and the rotating cylinder (42) near the protective plate (46) has multiple sets of limiting grooves (421) corresponding to multiple sets of second limiting blocks (48). The multiple sets of limiting grooves (421) are staggered with multiple sides of the polygonal annular grooves (411) on the vertical projection plane. The second telescopic cylinder (44) is fixedly installed on the installation platform (13), and the push ring (45) is installed on the second telescopic cylinder (42). 4) On the telescopic end, the end of the push ring (45) away from the second telescopic cylinder (44) is rotatably connected to the end of the rotating cylinder (42) away from the wall. The rotating structure (49) is set between the rotating cylinder (42) and the fixed cylinder (43) for moving the rotating cylinder (42) when the push ring (45) pushes the rotating cylinder (42) to move, thereby driving the rotating cylinder (42) to move and rotate along the length direction of the detection cylinder (131). A sealing layer is pasted on the side of the rotating cylinder (42) close to the wall to improve the sealing between the rotating cylinder (42) and the wall.
5. A device for detecting the spraying of exterior wall thermal insulation coating based on an aerial work platform according to claim 4, characterized in that: The rotating structure (49) includes a straight groove (491), an arc groove (492), and a movable protrusion (493). The straight groove (491) is opened on the outer wall of the fixed cylinder (43) along the length direction of the fixed cylinder (43). The arc groove (492) is spirally opened on the outer wall of the fixed cylinder (43). The straight groove (491) is located at the end of the arc groove (492) away from the wall and is connected to the arc groove (492). The movable protrusion (493) is fixedly set on the inner wall of the rotating cylinder (42) and is slidably set in the arc groove (492) and the straight groove (491).
6. A device for detecting the spraying of exterior wall thermal insulation coating based on an aerial work platform according to claim 4, characterized in that: Multiple protective plates (46) are provided with clearance grooves (5). When multiple protective plates (46) are closed, multiple clearance grooves (5) are connected to form a ring to avoid the ring light source (34). A wiping layer is provided on the side of the protective plate (46) near the glass plate (33). A first drive motor (6) is fixedly installed on the mounting platform (13). A first gear (61) is fixedly sleeved on the output shaft of the first drive motor (6). A first toothed ring (62) is fixedly sleeved on the outer wall of the end of the detection cylinder (131) away from the wall. The first gear (61) and the first toothed ring (62) mesh with each other.
7. A device for detecting the spraying of exterior wall thermal insulation coating based on an aerial work platform according to claim 4, characterized in that: A rotating shaft is rotatably mounted on the horizontal adjustment platform (12), and the mounting platform (13) is fixedly mounted on the rotating shaft. A second drive motor (7) is mounted on the horizontal adjustment platform (12), and a second gear (71) is mounted on the output shaft of the second drive motor (7). A second gear ring (72) is mounted on the rotating shaft, and the second gear (71) and the second gear ring (72) mesh with each other.
8. A device for detecting the spraying of exterior wall thermal insulation coating based on an aerial work platform according to claim 4, characterized in that: A negative pressure cylinder (8) is fixedly fitted on the outer wall of the rotating cylinder (42). A negative pressure space is opened inside the negative pressure cylinder (8). An air extraction pipe (81) is provided at the end of the negative pressure cylinder (8) away from the wall. Multiple sets of negative pressure ports are opened at the end of the negative pressure cylinder (8) close to the wall. The air extraction pipe (81), the negative pressure space and the negative pressure ports are connected.