Green building material strength detection device

Abstract

The invention relates to the technical field of building material detection, and particularly discloses a green building material strength detection device which comprises a testing mechanism, a sample manufacturing mechanism, a controller, filling equipment and dust collection equipment, the testing mechanism is responsible for observing and testing the building materials; the sample manufacturing mechanism is arranged on the left side of the testing mechanism and is responsible for grabbing, cutting, trepanning and cleaning pretreatment work of building material samples. All detection procedures can be completed in the device, the full-automatic process from plate grabbing, trepanning, cleaning to pouring detection is achieved, damage and pollution caused by external transfer are avoided, a sample is longitudinally cut through automatic operation to form a flat section, and the detection efficiency is improved. The method realizes direct observation of the erosion degree of the sample profile soaked by different types of liquid, clearly presents the liquid permeation path, erosion depth and material internal structure change, improves the accuracy and objectivity of detection data, and provides a powerful basis for material performance evaluation.

Description

Technical Field

[0001] This invention relates to the field of building material testing technology, specifically to a strength testing device for green building materials. Background Technology

[0002] Traditional strength testing of green building materials relies on manual sample pretreatment, a cumbersome process that makes it difficult to ensure the flatness and perpendicularity of the cuts, resulting in insufficient precision in subsequent testing holes. This leads to large dispersion in test results, failing to accurately reflect the true strength of the material and affecting testing efficiency and reliability. Furthermore, the need to transfer samples between different workstations increases handling time and operational risks. In addition, traditional erosion testing of building materials often relies on surface observation or destructive sampling analysis, which cannot visually present the erosion path and depth inside the material, make it difficult to determine the degree of liquid penetration in the material pores, or analyze the erosion differences between different structural layers. While destructive sampling can obtain internal samples, it destroys the integrity of the material, and the samples are highly random and cannot represent the overall erosion state, resulting in significant bias in the test results and failing to provide comprehensive data support for material performance evaluation. Summary of the Invention

[0003] The purpose of this invention is to provide a strength testing device for green building materials, so as to at least solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a green building material strength testing device, comprising: a testing mechanism, a sample preparation mechanism, a controller, a pouring device, and a dust collection device; the testing mechanism is responsible for the observation and testing of building materials; the sample preparation mechanism is located on the left side of the testing mechanism and is responsible for the grasping, cutting, drilling, and cleaning pretreatment of building material samples; the controller is installed outside the testing mechanism; the pouring device is located on the right front of the testing mechanism, and the pouring device and the controller are electrically connected; the dust collection device is located on the right front of the sample preparation mechanism, and the dust collection device and the controller are electrically connected.

[0005] Preferably, the sample making mechanism includes: a second mounting frame and an opening and cleaning component, wherein the opening and cleaning component is disposed on the inner right end of the second mounting frame.

[0006] Preferably, the hole-opening and cleaning component includes: a fixed guide rail frame, a drilling module, a fourth electric telescopic rod, and a cleaning execution unit; the fixed guide rail frame has position adjustment components at both the front and rear ends on the right side; the drilling module is located to the right of the front position adjustment component, and the drilling module is electrically connected to the controller; the fourth electric telescopic rod is located to the right of the rear position adjustment component, and the fourth electric telescopic rod is electrically connected to the controller; the cleaning execution unit is located below the moving end of the fourth electric telescopic rod.

[0007] Preferably, the testing mechanism includes: a first mounting frame, an observation tank, a three-axis moving platform, and an infusion nozzle; the first mounting frame is disposed on the right side of the sample preparation mechanism in the front-back direction; the observation tank is fixedly installed inside the first mounting frame in the front-back direction; the three-axis moving platform is installed at the top of the first mounting frame, and the three-axis moving platform is electrically connected to a controller; the infusion nozzle is installed at the moving end of the three-axis moving platform, and the infusion nozzle can be connected to an infusion device through a connecting pipe, and the infusion nozzle is electrically connected to the controller.

[0008] Preferably, the testing mechanism further includes: a first fixed base, a rotating arm, a first motor, a slot frame, a pressure plate, and a first electric telescopic rod; there are two first fixed bases, which are respectively installed on the front and rear sides of the right top of the first mounting frame; there are two rotating arms, which are respectively rotatably connected to the inner sides of the front and rear first fixed bases via rotating shafts; there are two first motors, which are respectively installed on the outside of the front and rear first fixed bases, and the rotating ends of the two first motors are respectively connected to the shafts of the front and rear rotating arms, and the first motors are electrically connected to a controller; there are two slot frames, which are respectively installed on the left bottom of the front and rear rotating arms; there are two pressure plates, which are respectively inserted into the inner sides of the front and rear slot frames; there are two sets of first electric telescopic rods, with two first electric telescopic rods in each set, and the two sets of first electric telescopic rods are respectively installed on the front and rear sides of the top of the front and rear slot frames, and the telescopic ends of the two first electric telescopic rods are respectively connected to the front and rear sides of the top of the front and rear pressure plates, and the first electric telescopic rods are electrically connected to a controller.

[0009] Preferably, the sample preparation mechanism further includes: a dual-axis moving platform, a first mounting base, a second electric telescopic rod, a limiting slot seat, a moving frame, a U-shaped frame, and a position sensor; the second mounting frame is installed on the left side of the first mounting frame in the front-to-back direction; the dual-axis moving platform is fixedly installed on the top of the second mounting frame in the left-to-right direction, and the dual-axis moving platform is electrically connected to the controller; the first mounting base is installed at the bottom of the moving end of the dual-axis moving platform; the second electric telescopic rod is installed on the bottom inner side of the first mounting base in the left-to-right direction, and the telescopic end of the second electric telescopic rod extends from the right side opening of the first mounting base to the outside, and the second electric telescopic rod is electrically connected to the controller; there are two limiting slot seats, which are respectively installed on the left and right sides of the top inner side of the first mounting base; the moving frame is inserted into the inner side of the limiting slot seat in the left-to-right direction, and the telescopic end of the second electric telescopic rod is connected to the bottom right side of the moving frame; the U-shaped frame is installed on the right end of the moving frame; the position sensor is installed on the front side of the U-shaped frame through a bracket, and the position sensor is electrically connected to the controller.

[0010] Preferably, the sample preparation mechanism further includes: a first rotating frame, an electric suction cup, a second motor, and a bevel gear set; the first rotating frame is rotatably connected to the inner side of the U-shaped frame via bearings; there are two electric suction cups, with the two sets of electric suction cups respectively installed at the front and rear ends of the right side of the first rotating frame, and the electric suction cups are electrically connected to the controller; the second motor is installed at the rear end of the left side of the U-shaped frame, with the rotating end of the second motor extending into the inner side of the U-shaped frame, and the second motor is electrically connected to the controller; one end of the bevel gear set is installed outside the shaft of the first rotating frame, and the other end of the bevel gear set is installed at the rotating end of the second motor.

[0011] Preferably, the sample making mechanism further includes: a mounting frame, a third electric telescopic rod, a second mounting base, and a hot-cutting wire; the number of mounting frames is two, and the two mounting frames are respectively installed on the front and rear sides of the inner right end of the second mounting frame; the number of third electric telescopic rods is two, and the two third electric telescopic rods are respectively installed on the inner side of the two mounting frames, the telescopic ends of the third electric telescopic rods extending out of the lower surface of the mounting frame, and the third electric telescopic rods are electrically connected to the controller; the number of second mounting bases is two, and the two second mounting bases are respectively installed at the bottom of the telescopic ends of the front and rear third electric telescopic rods; the hot-cutting wire is installed on the inner side of the front and rear second mounting bases along the front-rear direction, and the hot-cutting wire is electrically connected to the controller.

[0012] Preferably, the cleaning execution unit includes: a housing, a square grooved rod, a circular grooved rod, a tank frame, a suction tube, a solenoid valve, a rotating seat, a micro motor, and a transmission belt assembly; the housing is installed at the bottom of the moving end of the fourth electric telescopic rod, and an installation groove is formed at the bottom of the inner cavity of the housing; the square grooved rod is disposed in the inner cavity of the installation groove of the housing in the vertical direction, and the top end of the square grooved rod extends into the inner cavity of the housing; the circular grooved rod is installed at the bottom of the square grooved rod in the vertical direction, and the bottom of the inner cavity of the square grooved rod communicates with the top of the inner cavity of the circular grooved rod; the tank frame is installed circumferentially at the bottom of the outer surface of the circular grooved rod; the suction tube passes through a bearing in the vertical direction. The suction tube is rotatably connected to the inner cavities of the square and round grooved rods, with its upper and lower ends extending outwards from the square and round grooved rods, respectively. A solenoid valve is connected to the top of the suction tube and is connected to the vacuum cleaner via a connecting pipe. The solenoid valve is electrically connected to the controller. A rotating seat is rotatably connected to the inner cavity of the mounting slot in the outer casing via a bearing. A micro motor is mounted on the rear bottom of the inner cavity of the outer casing via a bracket and is electrically connected to the controller. One end of the transmission belt assembly has a pulley that is interference-fitted onto the outer surface of the rotating seat, while the other end of the transmission belt assembly has its pulley shaft mounted on the rotating end of the micro motor.

[0013] Preferably, the cleaning execution unit further includes: a second fixed seat, a limiting frame, a miniature electric telescopic rod, a sleeve frame, a second rotating frame, a connecting rod, and a grinding disc; the number of second fixed seats is four, and the four second fixed seats are installed on the top of the outer surface of the square groove rod at 90-degree intervals along the circumference; the number of limiting frames is four, and one end of the four limiting frames is rotatably connected to the inner side of the four second fixed seats at 90-degree intervals along the circumference via a rotating shaft; the number of miniature electric telescopic rods is two, and the two miniature electric telescopic rods are respectively installed on the front and rear sides of the groove frame in the vertical direction, and the miniature electric telescopic rods are electrically connected to the controller; the sleeve frame covers... The four second rotating frames are connected to the outer wall of the circular groove rod. One end of each second rotating frame is rotatably connected to the inner side of the groove frame at 90-degree intervals along the circumference via a rotating shaft. The inner side of the other end of each of the four limiting frames is rotatably connected to the outer side of the other end of each of the four second rotating frames via a rotating shaft. The four connecting rods are connected to the outer side of the sleeve frame at 90-degree intervals along the circumference via a rotating shaft. The other end of each connecting rod is rotatably connected to the inner side of each of the four second rotating frames via a rotating shaft. The four grinding discs are rotatably connected to the outer side of each of the four second rotating frames via a rotating shaft.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The electric suction cup at the moving end of the dual-axis moving platform moves to a designated position above the insulation board. The second motor, driven by the bevel gear set, drives the first rotating frame to rotate inside the U-shaped frame, causing the first rotating frame to rotate the electric suction cup downwards to a horizontal position. The electric suction cup then adsorbs and grips the insulation board. The dual-axis moving platform drives the lower electric suction cup to move the board to a position below the hole-opening and cleaning component. The position adjustment component in the hole-opening and cleaning component drives the drilling module to open holes for the detection holes on the surface of the insulation board. The fourth electric telescopic rod moves the cleaning execution unit above the detection holes on the surface of the insulation board. The fourth electric telescopic rod extends, driving the cleaning execution unit to insert into the insulation board. The inner cavity of the plate inspection hole is driven by a miniature electric telescopic rod, which moves the sleeve frame downward along the outside of the circular groove rod. This causes the sleeve frame to move one end of the outer connecting rod downward, and then, with the cooperation of the four connecting rods, drives the four second rotating frames to rotate downward inside the groove frame. With the cooperation of the four limiting frames, the four grinding discs are driven to move outward and contact the inner wall of the inspection hole. The miniature motor drives the rotating seat to rotate under the transmission belt assembly, which in turn drives the square groove rod and the circular groove rod to rotate. Then, with the cooperation of the limiting frames and the second rotating frames, the grinding discs are driven to reciprocate and contact the inner wall of the inspection hole to achieve grinding. The grinding debris on the inner wall of the inspection hole is drawn into the dust collection equipment through the suction pipe for centralized collection.

[0015] 2. The dual-axis moving platform moves the sheet metal below the hot-cutting line. The third electric telescopic rod drives the second mounting base downwards, so that the second mounting base moves downwards along the center of the inspection hole of the sheet metal workpiece to melt the foam, thereby achieving longitudinal cutting of the sheet metal workpiece. The dual-axis moving platform moves the sheet metal workpiece to the same horizontal height position as the observation slot box. Under the limiting action of the limiting slot seat, the moving frame extends into the inner cavity of the observation slot box, and with the assistance of the electric suction cup, moves the sheet metal workpiece to the position below the pressure plate. The first electric telescopic rod extends and retracts, driving the pressure plate within the slot frame. The cavity extends to a specified length to match the height of the sheet metal workpiece. The first motor drives the rotating arm to rotate downwards, so that the rotating arm, in cooperation with the slot frame, drives the pressure plate to flip downwards and press the sheet metal workpiece into the corresponding position of the observation window inside the observation tank. The three-axis moving platform drives the injection nozzle to move in three-axis directions, so that the injection nozzle moves sequentially above the detection hole of the sheet metal workpiece. The injection equipment injects the internally stored detection liquid into the inner cavity of the detection hole through the injection nozzle, allowing the staff to observe and record the changes in the erosion degree inside the sheet metal workpiece through the observation window inside the observation tank.

[0016] In summary, this invention enables the entire testing process to be completed within the device, achieving a fully automated workflow from plate gripping, drilling, cleaning to injection testing. This avoids damage and contamination caused by external transfer. Furthermore, the automated operation longitudinally cuts the sample to form a flat cross-section, allowing direct observation of the degree of erosion on the sample cross-section after immersion in different types of liquids. This clearly presents the liquid penetration path, erosion depth, and changes in the internal structure of the material, improving the accuracy and objectivity of the test data and providing a strong basis for material performance evaluation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Exploded view of the testing facility in the image; Figure 3 for Figure 2 Enlarged view of point A in the image; Figure 4 for Figure 1 Exploded view of the sample preparation mechanism; Figure 5 for Figure 4 Enlarged view of point B in the image; Figure 6 for Figure 4 Enlarged view of point C in the image; Figure 7 for Figure 4 Exploded view of the opening cleaning component in the image; Figure 8 for Figure 7 Enlarged view of point D in the image; Figure 9 for Figure 7 Exploded view of the cleanup execution unit.

[0018] In the diagram: 1. Testing mechanism; 11. First mounting frame; 12. Observation tank; 13. Three-axis moving platform; 14. Injection nozzle; 15. First fixed seat; 16. Rotating arm; 17. First motor; 18. Slot frame; 19. Pressure plate; 110. First electric telescopic rod; 2. Sample preparation mechanism; 21. Second mounting frame; 22. Dual-axis moving platform; 23. First mounting seat; 24. Second electric telescopic rod; 25. Limiting slot seat; 26. Moving frame; 27. U-shaped frame; 28. Position sensor; 29. ​​First rotating frame; 210. Electric suction cup; 211. Second motor; 212. Bevel gear set; 213. Mounting frame; 214. Third electric telescopic rod; 215. Second mounting seat; 216. Hot cutting line; 3. Hole cleaning component; 31. Fixed guide rail frame; 32. Roller platform; 33. 34. First rack, 35. Third motor, 36. First gear, 37. Limiting roller, 38. Movable guide rail, 39. Fourth motor, 30. Second gear, 310. Second rack, 311. Slide housing, 312. Fifth motor, 313. Lead screw assembly, 314. Sliding seat, 315. Drilling module, 316. Fourth electric telescopic rod, 4. Cleaning execution unit, 41. Housing, 42. Square groove rod, 43. Round groove rod, 44. Groove frame, 45. Suction tube, 46. Solenoid valve, 47. Rotating seat, 48. Micro motor, 49. Transmission belt assembly, 410. Second fixed seat, 411. Limiting frame, 412. Micro electric telescopic rod, 413. Sleeve frame, 414. Second rotating frame, 415. Connecting rod, 416. Grinding disc, 5. Controller, 6. Injection equipment, 7. Dust collection equipment. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-9This invention provides a technical solution: a green building material strength testing device, comprising: a testing mechanism 1, a sample preparation mechanism 2, a controller 5, a pouring device 6, and a dust collection device 7; the testing mechanism 1 is responsible for the observation and testing of building materials; the sample preparation mechanism 2 is located on the left side of the testing mechanism 1 and is responsible for the grasping, cutting, drilling, and pre-processing of building material samples; the controller 5 is installed outside the testing mechanism 1, and the controller 5 has a built-in PLC control system and preset program, which realizes precise control of each mechanism through RS485 communication protocol, and receives data such as position and pressure from the internal sensors of each electrical component, and dynamically adjusts parameters such as the movement path; the pouring device 6 is located on the right front of the testing mechanism 1, for pouring... Device 6 and controller 5 are electrically connected. The filling device 6 includes a storage tank, a metering pump, and a pressure sensor. The storage tank can store special test liquids and can store different types of test liquids. The metering pump can deliver precise quantities under the command of controller 5. The pressure sensor monitors the pipeline pressure in real time to prevent overpressure leakage and ensure the safety and stability of the filling process. The dust collection device 7 is located at the right front of the sample preparation mechanism 2. The dust collection device 7 is electrically connected to controller 5. The dust collection device 7 adopts negative pressure dust collection technology and controls the opening and closing of the suction tube 45 through solenoid valve 46. The dust collection device 7 has a built-in three-stage filtration system that can separate debris and dust to avoid secondary pollution. The internal dust collection box automatically alarms when it is full, prompting staff to clean it.

[0021] As a preferred option, further, such as Figure 2 and Figure 3As shown, the testing mechanism 1 includes: a first mounting frame 11, an observation tank 12, a three-axis moving platform 13, an injection nozzle 14, a first fixed seat 15, a rotating arm 16, a first motor 17, a slot frame 18, a pressure plate 19, and a first electric telescopic rod 110. The first mounting frame 11 is located on the right side of the sample preparation mechanism 2 along the front-back direction. The first mounting frame 11 is welded from high-strength steel and constitutes the main support structure of the testing mechanism 1. The frame of the first mounting frame 11 has a pre-reserved standardized installation interface for precisely fixing the observation tank 12. The top is designed with a high-precision slide rail and mounting platform for installing the three-axis moving platform 13. The front and rear bolt holes on the top right side of the first mounting frame 11 are pre-set for fixing the first fixed seat 15. The observation box 12 is fixedly installed inside the first mounting frame 11 along the front-to-back direction. An observation window made of transparent, impact-resistant plexiglass is provided on the right side of the observation box 12, facilitating observation of the changes in the state of the building materials during the testing process. A three-axis moving platform 13 is installed at the top of the first mounting frame 11 and is electrically connected to the controller 5. The three-axis moving platform 13 consists of linear modules in the X, Y, and Z directions. Each module is equipped with a servo motor and a high-precision ball screw transmission mechanism. After receiving commands, the three-axis moving platform 13 drives the injection nozzle 14 to move in three-dimensional space. The injection nozzle 14 is installed at the moving end of the three-axis moving platform 13 and can interact with the injection equipment 6. The injection nozzle 14 and controller 5 are electrically connected via a connecting pipe. The injection nozzle 14 contains an electromagnetic control valve and a flow sensor, which can precisely control the start / stop and flow rate of the detection liquid according to the instructions of controller 5, ensuring that the detection liquid can be accurately injected into the detection hole cavity of the plate workpiece. There are two first fixing seats 15, which are respectively installed on the front and rear sides of the right top of the first mounting frame 11. High-precision bearings are embedded inside the first fixing seats 15 to provide stable rotational support for the rotating arms 16. There are two rotating arms 16, which are rotatably connected to the inner sides of the front and rear first fixing seats 15 via rotating shafts. The rotating arms 16 can rotate 90° around the axis. There are two first motors 17. Two first motors 17 are respectively installed on the outside of the front and rear first fixed seats 15. The rotating ends of the two first motors 17 are respectively connected to the shafts of the front and rear rotating arms 16. The first motors 17 are electrically connected to the controller 5. When the first motor 17 receives the start signal from the controller 5, the first motor 17 drives the rotating arm 16 to rotate downward, thereby driving the slot frame 18 and the pressure plate 19 to rotate synchronously, pressing the plate workpiece placed in the observation slot box 12 to the corresponding position of the observation window. There are two slot frames 18. The two slot frames 18 are respectively installed on the bottom left side of the front and rear rotating arms 16. The inner side of the slot frame 18 is designed with a rectangular slot for inserting the pressure plate 19. The slots are provided with guide grooves on both sides to guide the pressure plate 19 to be smoothly inserted and pulled out.There are two pressure plates 19, which are respectively inserted into the inner sides of the front and rear slot frames 18. The bottom surface of the pressure plates 19 is made of non-slip rubber to increase the friction with the surface of the plate and prevent damage to the plate during pressing. There are two sets of first electric telescopic rods 110, with two rods in each set. The two sets of first electric telescopic rods 110 are respectively installed on the front and rear sides of the top of the front and rear slot frames 18. The telescopic ends of the two first electric telescopic rods 110 are respectively connected to the front and rear sides of the top of the front and rear pressure plates 19. The first electric telescopic rods 110 are electrically connected to the controller 5. The controller 5 controls the extension or shortening of the first electric telescopic rods 110 according to the height of the plate workpiece, adjusting the extension length of the pressure plates 19 in the inner cavity of the slot frame 18, thereby adapting to plates of different thicknesses and ensuring reliable fixing regardless of the thickness of the plate.

[0022] As a preferred option, further, such as Figure 4 , Figure 5 and Figure 6As shown, the sample fabrication mechanism 2 includes: a second mounting frame 21, a dual-axis moving platform 22, a first mounting base 23, a second electric telescopic rod 24, a limit slot seat 25, a moving frame 26, a U-shaped frame 27, a position sensor 28, a first rotating frame 29, an electric suction cup 210, a second motor 211, a bevel gear set 212, a mounting frame 213, a third electric telescopic rod 214, a second mounting base 215, a hot-cutting line 216, and an opening and cleaning component 3. The second mounting frame 21 is installed on the left side of the first mounting frame 11 along the front-to-back direction. The second mounting frame 21 is welded from high-strength aluminum alloy profiles and has multiple mounting platforms inside, providing support for the dual-axis moving platform 22 and the opening and cleaning component 3. Provides stable support; the dual-axis moving platform 22 is fixedly installed on the top of the second mounting frame 21 along the left-right direction. The dual-axis moving platform 22 consists of X-axis (left-right direction) and Z-axis (up-down direction) linear modules, equipped with servo motors, belt assemblies, gear and rack assemblies, and linear guides. The dual-axis moving platform 22 receives commands from the controller 5 to drive the first mounting base 23 and its auxiliary components to achieve arbitrary positioning in the plane; the first mounting base 23 is installed at the bottom of the moving end of the dual-axis moving platform 22; the second electric telescopic rod 24 is installed on the inner bottom of the first mounting base 23 along the left-right direction. The telescopic end of the second electric telescopic rod 24 extends from the opening on the right side of the first mounting base 23 to the outside. 4 is electrically connected to the controller 5. The telescopic end of the second electric telescopic rod 24 pushes the movable frame 26 to slide within the limiting slot seat 25, realizing the lateral fine adjustment of the electric suction cup 210. When the plate is sent into the observation slot box 12, the second electric telescopic rod 24 precisely controls the entry position of the plate. There are two limiting slot seats 25, which are respectively installed on the left and right sides of the inner top of the first mounting base 23. The movable frame 26 is inserted into the inner side of the limiting slot seat 25 in the left and right direction. The telescopic end of the second electric telescopic rod 24 is connected to the bottom right side of the movable frame 26. The movable frame 26 can slide left and right within the limiting slot seat 25. The U-shaped frame 27 is installed on the right end of the movable frame 26. Position sensor 28 is mounted on the front side of U-shaped frame 27 via a bracket. Position sensor 28 is electrically connected to controller 5. Position sensor 28 uses a laser rangefinder to monitor the relative position of the board and each processing component in real time and feeds the data back to controller 5 for dynamic adjustment of the movement of dual-axis moving platform 22 to ensure processing accuracy. First rotating frame 29 is rotatably connected to the inside of U-shaped frame 27 via bearings. There are two electric suction cups 210. The two sets of electric suction cups 210 are respectively installed at the front and rear ends of the right side of first rotating frame 29. Electric suction cups 210 are electrically connected to controller 5. Electric suction cups 210 have built-in pressure sensors to monitor the suction force in real time to ensure that the board does not slip during handling.The second motor 211 is installed at the left rear end of the U-shaped frame 27. The rotating end of the second motor 211 extends into the inner side of the U-shaped frame 27. The second motor 211 is electrically connected to the controller 5. The second motor 211 is a servo motor equipped with an absolute encoder to achieve the angular control accuracy of the rotation of the first rotating frame 29. One end of the bevel gear set 212 is installed outside the shaft of the first rotating frame 29, and the other end of the bevel gear set 212 is installed at the rotating end of the second motor 211. There are two mounting brackets 213, which are respectively installed on the front and rear sides of the inner right end of the second mounting frame 21. There are two third electric telescopic rods 214, which are respectively installed inside the two mounting brackets 213. The telescopic movement of the third electric telescopic rods 214... The lower surface of the mounting bracket 213 extends from the end of the third electric telescopic rod 214, which is electrically connected to the controller 5. The third electric telescopic rod 214 drives the second mounting base 215 to move up and down by its own extension and retraction to control the cutting depth of the hot cutting wire 216. There are two second mounting bases 215, which are respectively installed at the bottom of the telescopic ends of the front and rear third electric telescopic rods 214. The hot cutting wire 216 is installed on the inner side of the front and rear second mounting bases 215 along the front-rear direction. The hot cutting wire 216 is electrically connected to the controller 5. The hot cutting wire 216 is made of nickel-chromium alloy wire, which heats up rapidly to over 600°C after being energized, which can quickly melt the foam material in the insulation board and ensure a smooth cut without burrs. The hole cleaning component 3 is located on the inner right end of the second mounting frame 21.

[0023] As a preferred option, further, such as Figure 7 and Figure 8As shown, the hole-opening and cleaning component 3 includes: a fixed guide rail frame 31, a drilling module 315, a fourth electric telescopic rod 316, and a cleaning execution unit 4. The fixed guide rail frame 31 is installed on the inner right side of the second mounting frame 21 along the front-rear direction. Position adjustment components are provided at both the front and rear ends of the right side of the fixed guide rail frame 31. The fixed guide rail frame 31 is integrally formed from high-strength aluminum alloy profiles, and the outer surface is designed with weight-reducing grooves to reduce weight while ensuring structural strength. A high-precision rack mounting surface is milled on the top right side of the fixed guide rail frame 31 along the front-rear direction to fix the first rack 33. The fixed guide rail frame 31 ensures the positioning accuracy of drilling and cleaning operations. The drilling module 315 is set at the front position adjustment. On the right side of the component, the drilling module 315 and the controller 5 are electrically connected. The drilling module 315 has a built-in pressure sensor. The controller 5 automatically adjusts the spindle speed and feed rate of the drilling module 315 according to the size of the plate. During the drilling process, the pressure sensor provides real-time feedback data. When the axial force exceeds the set threshold, the drilling module 315 automatically stops feeding and retracts to prevent the drill bit from jamming. The fourth electric telescopic rod 316 is located on the right side of the rear position adjustment component. The fourth electric telescopic rod 316 is electrically connected to the controller 5. The fourth electric telescopic rod 316 is driven by a ball screw and moves the cleaning execution unit 4 into the detection hole. The cleaning execution unit 4 is located below the moving end of the fourth electric telescopic rod 316.

[0024] More specifically, the position adjustment components include: a roller platform 32, a first rack 33, a third motor 34, a first gear 35, a limiting roller 36, a movable guide rail frame 37, a fourth motor 38, a second gear 39, a second rack 310, a slide groove housing 311, a fifth motor 312, a lead screw assembly 313, a sliding seat 314, a drilling module 315, and a fourth electric telescopic rod 316; there are two roller platforms 32, which are respectively installed on the front and rear sides of the fixed guide rail frame 31; the first rack 33 is installed on the top right side of the fixed guide rail frame 31 along the front and rear direction; there are two third motors 34, which are respectively installed on the front right side of the front and rear roller platforms 32, and the rotating end of the third motor 34... Extending to the left side of the roller platform 32, the third motor 34 and controller 5 are electrically connected. The third motor 34 is a servo motor equipped with an absolute encoder to achieve precise control of the rotation angle of the first gear 35. There are two first gears 35, which are respectively installed on the rotating ends of the front and rear first gears 35 and mesh with the first rack 33. The third motor 34 drives the first gears 35 to roll along the first rack 33, realizing the forward and backward movement of the roller platform 32. There are two sets of limit rollers 36, with four limit rollers in each set. The two sets of limit rollers 36 are respectively installed at the four right corners of the front and rear roller platforms 32. The limit rollers 36 adopt a V-groove design to precisely match the guide rail surfaces on both sides of the movable guide rail frame 37 to ensure lifting. The stability of the process; there are two movable guide rails 37, which are respectively engaged with the inner sides of two sets of limit rollers 36 in the vertical direction; there are two fourth motors 38, which are respectively installed on the left side of the front and rear roller platforms 32, and the rotating end of the fourth motor 38 extends to the right side of the roller platform 32. The fourth motor 38 is electrically connected to the controller 5. The fourth motor 38 is a servo motor equipped with an absolute encoder to achieve the rotation angle control accuracy of the second gear 39; there are two second gears 39, which are respectively installed on the right side of the rotating end of the front and rear fourth motors 38; there are two second racks 310, which are respectively installed in the vertical direction on the front and rear roller platforms 32. On the left front of the movable guide rail frame 37, two second gears 39 mesh with two second racks 310 respectively. The fourth motor 38 drives the second gears 39 to rotate. Through meshing with the second racks 310, the movable guide rail frame 37 moves up and down. There are two slide groove housings 311. The two slide groove housings 311 are installed on the right side of the front and rear movable guide rail frames 37 in the vertical direction. There are two fifth motors 312. The two fifth motors 312 are installed on the top of the front and rear slide groove housings 311 respectively. The rotating end of the fifth motor 312 extends into the inner cavity of the slide groove housing 311. The fifth motor 312 is electrically connected to the controller 5. The fifth motor 312 is a servo motor with a built-in brake device to prevent the sliding seat 314 from sliding down when the power is off.There are two lead screw assemblies 313, which are respectively installed in the inner cavities of the front and rear slide groove housings 311. The top ends of the lead screw shafts of the two lead screw assemblies 313 are respectively connected to the rotating ends of the two fifth motors 312. The lead screw assemblies 313 are ball screws. The fifth motors 312 drive the lead screws of the lead screw assemblies 313 to rotate, which drives the sliding seats 314 connected to their own lead screw nuts to move up and down along the inner cavity of the slide groove housing 311 to achieve double-stage lifting. The double-stage lifting design realizes the combination of the large-range coarse adjustment movable guide rail frame 37 and the high-precision fine adjustment sliding seats 314. There are two sliding seats 314, which are respectively installed in the inner cavities of the front and rear slide groove housings 311. The outer side of the sliding seats 314 extends out of the inner cavity of the slide groove housing 311. The inner side of the two sliding seats 314 is respectively connected to the lead screw nuts of the two lead screw assemblies 313. The right side of the sliding seats 314 is respectively connected to the drilling module 315 or the fourth electric telescopic rod 316. ;

[0025] As a preferred option, further, such as Figure 9As shown, the cleaning execution unit 4 includes: a housing 41, a square grooved rod 42, a round grooved rod 43, a groove frame 44, a suction tube 45, a solenoid valve 46, a rotating seat 47, a micro motor 48, a transmission belt assembly 49, a second fixed seat 410, a limit frame 411, a micro electric telescopic rod 412, a sleeve frame 413, a second rotating frame 414, a connecting rod 415, and a grinding disc 416. The housing 41 is installed at the bottom of the moving end of the fourth electric telescopic rod 316. The bottom of the inner cavity of the housing 41 has an installation groove. The housing 41 is made of high-strength stainless steel, and the internal installation groove is machined in a stepped manner. As the main frame of the cleaning execution unit 4, it is rigidly connected to the moving end of the fourth electric telescopic rod 316 by bolts to ensure that it can withstand high-speed rotation and telescopic movements. To maintain stability, a square grooved rod 42 is installed vertically within the mounting groove of the housing 41, with its top end extending into the housing 41. A circular grooved rod 43 is installed vertically at the bottom of the square grooved rod 42, with the bottom of the square grooved rod 42's inner cavity communicating with the top of the circular grooved rod 43's inner cavity. The surface of the circular grooved rod 43 is mirror-polished to reduce debris adhesion and improve collection efficiency. A trough frame 44 is circumferentially installed at the bottom of the outer surface of the circular grooved rod 43. A suction tube 45 is rotatably connected vertically to the inner cavities of the square grooved rod 42 and the circular grooved rod 43 via bearings. The upper and lower ends of the suction tube 45 extend out of the square grooved rod 42 and the circular grooved rod 43, respectively. The suction tube 45 is made of hollow stainless steel, and its tube body is manufactured using high-precision welding. An angular contact ball bearing is connected to the square groove rod 42 and the round groove rod 43 to ensure airtightness during high-speed rotation; a solenoid valve 46 is connected to the top of the suction pipe 45 and is connected to the vacuum cleaner 7 via a connecting pipe. The solenoid valve 46 is electrically connected to the controller 5. The solenoid valve 46 is a normally closed two-position two-way solenoid directional valve, which opens the connection channel between the suction pipe 45 and the vacuum cleaner 7 after being energized; a rotating seat 47 is rotatably connected to the mounting groove cavity of the housing 41 via a bearing. The rotating seat 47 is installed in the mounting groove of the housing 41 via a high-precision deep groove ball bearing. The rotating seat 47 has an internal mounting groove that mates with the external square groove rod 42 to achieve power transmission; a micro motor 48 is installed on the rear side of the bottom of the inner cavity of the housing 41 via a bracket. Electrically connected to controller 5, the micro motor 48 is a servo motor equipped with a planetary gear reducer, which can provide torque at low speeds; one end of the transmission belt assembly 49 has a pulley that is interference-fitted to the outer surface of the rotating seat 47, and the other end of the transmission belt assembly 49 has a pulley shaft mounted on the rotating end of the micro motor 48. The transmission belt assembly 49 uses a single-sided toothed synchronous belt to ensure that the rotating seat 47 rotates smoothly at a constant speed, while reducing vibration and noise; there are four second fixed seats 410, which are installed at 90-degree intervals around the circumference on the top of the outer surface of the square groove rod 42; there are four limit brackets 411, which are rotatably connected to the inner side of the four second fixed seats 410 at 90-degree intervals around the circumference via a rotating shaft;There are two miniature electric telescopic rods 412, which are installed on the front and rear sides of the tank frame 44 respectively in the vertical direction. The miniature electric telescopic rods 412 are electrically connected to the controller 5. The miniature electric telescopic rods 412 are driven by ball screws to move the sleeve frame 413 up and down. The sleeve frame 413 is sleeved on the outer wall of the circular groove rod 43 and can slide along the axial direction of the circular groove rod 43. There are four second rotating frames 414. One end of the four second rotating frames 414 is rotatably connected to the inner side of the tank frame 44 at 90-degree intervals in the circumferential direction through a rotating shaft. The inner side of the other end of the four limiting frames 411 is rotatably connected to the outer side of the other end of the four second rotating frames 414 through a rotating shaft. There are four connecting rods 415. One end of each connecting rod 415 is rotatably connected to the outside of the sleeve frame 413 via a pivot at 90-degree intervals along the circumference. The other ends of the four connecting rods 415 are rotatably connected to the inside of the four second rotating frames 414 via pivots. The sleeve frame 413, connecting rods 415, and second rotating frames 414 form a linkage mechanism. Through the lever action of the connecting rods 415, the linear motion of the sleeve frame 413 is converted into the rotational motion of the second rotating frames 414. There are four grinding discs 416, which are rotatably connected to the outside of the four second rotating frames 414 via pivots. The grinding discs 416 are made of alumina ceramic with a diamond coating on the surface. They are mounted on the second rotating frames 414 via quick-change pivots, allowing for quick replacement of worn grinding discs 416.

[0026] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and the specific work is as follows: Step 1: The worker places the insulation board at the designated position inside the second mounting frame 21. The controller 5's internal preset program controls the dual-axis moving platform 22, the second motor 211, the electric suction cup 210, the third motor 34, the fourth motor 38, the fifth motor 312, the drilling module 315, and the fourth electric telescopic rod 316 to start. The dual-axis moving platform 22 drives the electric suction cup 210 at its moving end to move to the designated position above the insulation board. The second motor 211, driven by the bevel gear set 212, drives the first rotating frame 29 to rotate in a U-shape. The frame 27 rotates inward, causing the first rotating frame 29 to drive the electric suction cup 210 to flip downward to a horizontal state. The electric suction cup 210 then adsorbs and grips the insulation board. The second motor 211, driven by the bevel gear set 212, drives the first rotating frame 29 to drive the electric suction cup 210 to flip the board upward to a vertical state. The dual-axis moving platform 22 drives the lower electric suction cup 210 to move the board to a position below the opening and cleaning component 3. The third motor 34 in the front and rear roller platforms 32 drives the first gear 35 at the corresponding position to rotate clockwise or counterclockwise. The first gear 35 rotates along the first rack 33, driving the roller platform 32 to move forward or backward along the outside of the fixed guide rail frame 31 to a designated position. The fourth motor 38 drives the second gear 39 to rotate clockwise or counterclockwise. Under the rotational force of the second gear 39, the second rack 310 drives the movable guide rail frame 37 to move up or down, realizing the first stage of lifting. The fifth motor 312 drives the lead screw in the lead screw assembly 313 to rotate clockwise or counterclockwise, causing the lead screw nut in the lead screw assembly 313 to drive the sliding seat 31. 4. Move up or down along the inner cavity of the slide groove shell 311 so that the front roller platform 32 drives the drilling module 315 at the corresponding position to move above the board. The drilling module 315 drills the detection holes on the surface of the insulation board. After drilling is completed, the above work steps are reversed so that the drilling module 31 is retracted. The rear roller platform 32 drives the fourth electric telescopic rod 316 to move the cleaning execution unit 4 above the detection holes on the surface of the insulation board. The fourth electric telescopic rod 316 extends and drives the cleaning execution unit 4 to insert into the inner cavity of the detection holes of the insulation board. Step 2: The controller 5's internal preset program controls the micro electric telescopic rod 412, micro motor 48, vacuum cleaner 7, solenoid valve 46, hot cutting line 216, and third electric telescopic rod 214 to start. The micro electric telescopic rod 412 shortens, pulling the sleeve frame 413 to slide downward along the circular groove rod 43, so that the sleeve frame 413 drives one end of the outer connecting rod 415 to move downward. Then, with the cooperation of the four side connecting rods 415, it pushes the four side second rotating frames 414 to rotate outward around the pivot connection point. At the same time, the limiting frame 411 assists in adjusting the angle, so that the four grinding discs 416 expand synchronously and fit tightly against the inner wall of the detection hole. The micro motor 48 drives the rotating seat 47 to rotate clockwise or counterclockwise under the transmission belt assembly 49, so that the rotating seat 47 drives the square groove rod 42 and the circular groove rod 43 to rotate. Then, the limiting frame 411 and the second rotating frame 414 rotate outward. With the cooperation of the drive grinding disc 416, the grinding disc reciprocates with the inner wall of the detection hole to achieve grinding treatment. The dust collection device 7 and the solenoid valve 46 are turned on. The grinding debris is gathered to the bottom suction hole of the suction tube 45 under the action of suction. It is then extracted from the detection hole by negative pressure and drawn into the dust collection device 7 for centralized collection. This avoids residual debris from the opening of the hole from clogging the hole and affecting the subsequent detection liquid penetration. After cleaning and grinding are completed, the above work steps are reversed to make the cleaning execution unit 4 retract. The dual-axis moving platform 22 moves the plate to below the hot cutting line 216. The resistance wire inside the hot cutting line 216 is energized and heated. The third electric telescopic rod 214 extends and drives the second mounting base 215 to move downward so that the second mounting base 215 moves downward with the hot cutting line 216 along the center position of the detection hole of the plate workpiece to melt the foam and achieve longitudinal cutting of the plate workpiece. Step 3: The dual-axis moving platform 22 moves the sheet metal workpiece to the same horizontal height position as the observation slot box 12. The controller 5's internal preset program controls the second electric telescopic rod 24, the first electric telescopic rod 110, the first motor 17, the three-axis moving platform 13, and the pouring nozzle 14 to start. The second electric telescopic rod 24 extends to drive the moving frame 26. Under the limiting action of the limiting slot seat 25, the moving frame 26 extends into the inner cavity of the observation slot box 12 and, with the cooperation of the electric suction cup 210, moves the sheet metal workpiece to a position below the pressure plate 19. The first electric telescopic rod 110 extends and retracts to drive the pressure plate 19 to extend out of the inner cavity of the slot frame 18. The specified length is adapted to the height of the sheet metal workpiece. The first motor 17 drives the rotating arm 16 to rotate downward, so that the rotating arm 16, in cooperation with the slot frame 18, drives the pressure plate 19 to flip downward and press the sheet metal workpiece into the corresponding position of the observation window in the inner cavity of the observation tank 12. The three-axis moving platform 13 drives the pouring nozzle 14 to move in the three-axis direction, so that the pouring nozzle 14 moves sequentially above the detection hole of the sheet metal workpiece. The pouring device 6 pours the detection liquid stored inside into the inner cavity of the detection hole through the pouring nozzle 14 in a quantitative manner, so that the staff can observe and record the changes in the erosion degree inside the sheet metal workpiece through the observation window inside the observation tank 12.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for green building materials, characterized in that, include: The testing agency (1) is responsible for the observation and testing of building materials; The sample preparation mechanism (2) is located on the left side of the testing mechanism (1) and is responsible for grabbing, cutting, drilling and cleaning pretreatment of building material samples; The controller (5) is installed outside the test mechanism (1); The infusion device (6) is located in front of the right side of the test mechanism (1), and the infusion device (6) and the controller (5) are electrically connected. A vacuuming device (7) is located in front of the sample making mechanism (2) on the right side, and the vacuuming device (7) and the controller (5) are electrically connected. The sample making mechanism (2) includes: a second mounting frame (21) and an opening cleaning component (3), wherein the opening cleaning component (3) is disposed on the inner right end of the second mounting frame (21); The opening cleaning component (3) includes: Fixed guide rail frame (31), with position adjustment components provided at both the front and rear ends of the right side of the fixed guide rail frame (31); A drilling module (315) is located on the right side of the front position adjustment component, and the drilling module (315) is electrically connected to the controller (5). The fourth electric telescopic rod (316) is located on the right side of the rear position adjustment component, and the fourth electric telescopic rod (316) is electrically connected to the controller (5); The cleaning execution unit (4) is located below the moving end of the fourth electric telescopic rod (316).

2. The green building material strength testing device according to claim 1, characterized in that, The testing facility (1) includes: The first mounting frame (11) is arranged on the right side of the sample making mechanism (2) in the front-back direction; Observe the slot box (12), which is fixedly installed inside the first mounting frame (11) along the front-back direction; A three-axis moving platform (13) is installed on the top of the first mounting frame (11), and the three-axis moving platform (13) is electrically connected to the controller (5); The injection nozzle (14) is installed on the moving end of the three-axis moving platform (13). The injection nozzle (14) can be connected to the injection device (6) through a connecting pipe. The injection nozzle (14) and the controller (5) are electrically connected.

3. The green building material strength testing device according to claim 2, characterized in that, The testing facility (1) also includes: The first fixing seat (15) has two units, and the two first fixing seats (15) are respectively installed on the front and rear sides of the top right side of the first mounting frame (11); Rotating arm (16), there are two rotating arms (16), and the two rotating arms (16) are respectively rotatably connected to the inner sides of the front and rear first fixed seats (15) through rotating shafts; The first motor (17) has two motors (17). The two motors (17) are respectively installed on the outside of the front and rear first fixed seats (15). The rotating ends of the two motors (17) are respectively connected to the shafts of the front and rear rotating arms (16). The first motor (17) and the controller (5) are electrically connected. Slot holder (18), there are two slot holders (18), and the two slot holders (18) are respectively installed on the bottom left side of the front and rear rotating arms (16); Two pressure plates (19) are used, and the two pressure plates (19) are respectively inserted into the inner side of the front and rear slot frames (18); The first electric telescopic rod (110) has two sets, with two first electric telescopic rods (110) in each set. The two sets of first electric telescopic rods (110) are respectively installed on the front and rear sides of the top of the front and rear slot frames (18). The telescopic ends of the two first electric telescopic rods (110) are respectively connected to the front and rear sides of the top of the front and rear pressure plates (19). The first electric telescopic rod (110) is electrically connected to the controller (5).

4. The strength testing device for green building materials according to claim 3, characterized in that, The sample preparation mechanism (2) also includes: A dual-axis moving platform (22) is fixedly installed on the top of the second mounting frame (21) in the left-right direction, and the dual-axis moving platform (22) and the controller (5) are electrically connected; The first mounting base (23) is installed at the bottom of the moving end of the dual-axis moving platform (22); The second electric telescopic rod (24) is installed on the inner bottom of the first mounting base (23) in the left-right direction. The telescopic end of the second electric telescopic rod (24) extends from the right side opening of the first mounting base (23) to the outside. The second electric telescopic rod (24) and the controller (5) are electrically connected. The limiting slot seat (25) has two positions, and the two limiting slot seats (25) are respectively installed on the left and right sides of the inner top of the first mounting seat (23); The movable frame (26) is inserted into the inner side of the limiting slot seat (25) in the left-right direction, and the telescopic end of the second electric telescopic rod (24) is connected to the right side of the bottom end of the movable frame (26); The U-shaped frame (27) is installed at the right end of the movable frame (26); A position sensor (28) is mounted on the front side of the U-shaped frame (27) via a bracket, and the position sensor (28) is electrically connected to the controller (5).

5. The strength testing device for green building materials according to claim 4, characterized in that, The sample preparation mechanism (2) also includes: The first rotating frame (29) is rotatably connected to the inner side of the U-shaped frame (27) via bearings; Two electric suction cups (210) are provided. The two sets of electric suction cups (210) are installed at the front and rear ends of the right side of the first rotating frame (29). The electric suction cups (210) and the controller (5) are electrically connected. The second motor (211) is installed at the left rear end of the U-shaped frame (27). The rotating end of the second motor (211) extends into the inner side of the U-shaped frame (27). The second motor (211) is electrically connected to the controller (5). A bevel gear set (212) is installed at one end outside the shaft of the first rotating frame (29), and the other end of the bevel gear set (212) is installed at the rotating end of the second motor (211).

6. The strength testing device for green building materials according to claim 5, characterized in that, The sample preparation mechanism (2) also includes: Mounting bracket (213), there are two mounting brackets (213), and the two mounting brackets (213) are respectively installed on the front and rear sides of the inner right end of the second mounting frame (21); The third electric telescopic rod (214) has two components. The two third electric telescopic rods (214) are respectively installed on the inner side of two mounting brackets (213). The telescopic end of the third electric telescopic rod (214) extends out of the lower surface of the mounting bracket (213). The third electric telescopic rod (214) is electrically connected to the controller (5). The second mounting base (215) has two units, and the two second mounting bases (215) are respectively installed at the bottom of the telescopic ends of the front and rear third electric telescopic rods (214); A heat-cutting wire (216) is installed on the inside of the two second mounting seats (215) in the front and rear directions, and the heat-cutting wire (216) is electrically connected to the controller (5).

7. The strength testing device for green building materials according to claim 6, characterized in that, The cleanup execution unit (4) includes: The outer shell (41) is installed at the bottom of the moving end of the fourth electric telescopic rod (316), and the bottom of the inner cavity of the outer shell (41) is provided with an installation groove; A square groove rod (42) is disposed in the mounting groove cavity of the housing (41) in the vertical direction, and the top end of the square groove rod (42) extends into the cavity of the housing (41). A circular grooved rod (43) is installed at the bottom of the square grooved rod (42) in the vertical direction, and the bottom of the inner cavity of the square grooved rod (42) is connected to the top of the inner cavity of the circular grooved rod (43). The groove frame (44) is circumferentially mounted on the bottom of the outer surface of the circular groove rod (43); The suction tube (45) is rotatably connected to the inner cavity of the square groove rod (42) and the circular groove rod (43) via bearings in the up-down direction. The upper and lower ends of the suction tube (45) extend out of the square groove rod (42) and the circular groove rod (43) respectively. A solenoid valve (46) is connected to the top of the suction tube (45). The solenoid valve (46) is connected to the vacuum cleaner (7) through a connecting tube. The solenoid valve (46) is electrically connected to the controller (5). Rotary seat (47) is rotatably connected to the inner cavity of the mounting groove of the outer casing (41) via a bearing; A micro motor (48) is mounted on the rear side of the bottom of the inner cavity of the housing (41) by a bracket, and the micro motor (48) is electrically connected to the controller (5); The transmission belt assembly (49) has a pulley at one end that is interference-fitted to the outer surface of the rotating seat (47), and the pulley shaft at the other end of the transmission belt assembly (49) is mounted on the rotating end of the micro motor (48).

8. The strength testing device for green building materials according to claim 7, characterized in that, The cleanup execution unit (4) further includes: The number of the second fixing seats (410) is four, and the four second fixing seats (410) are installed on the top of the outer surface of the square groove rod (42) at a circumferential interval of ninety degrees. The limiting frame (411) has four units, and one end of each of the four limiting frames (411) is rotatably connected to the inner side of the four second fixed seats (410) at ninety-degree intervals along the circumference via a rotating shaft. Miniature electric telescopic rod (412), the number of miniature electric telescopic rods (412) is two, the two miniature electric telescopic rods (412) are respectively installed on the front and rear sides of the trough frame (44) in the vertical direction, and the miniature electric telescopic rods (412) and the controller (5) are electrically connected. The sleeve frame (413) is sleeved on the outer wall of the circular groove rod (43); The second rotating frame (414) has four units. One end of each of the four second rotating frames (414) is rotatably connected to the inner side of the tank frame (44) at 90-degree intervals along the circumference via a rotating shaft. The inner side of the other end of each of the four limiting frames (411) is rotatably connected to the outer side of the other end of each of the four second rotating frames (414) via a rotating shaft. Connecting rod (415), there are four connecting rods (415), one end of the four connecting rods (415) is rotatably connected to the outside of the sleeve frame (413) at 90-degree intervals along the circumference through a rotating shaft, and the other end of the four connecting rods (415) is rotatably connected to the inside of the four second rotating frames (414) through a rotating shaft; The grinding discs (416) are four in number, and the four grinding discs (416) are rotatably connected to the outside of the four second rotating frames (414) via rotating shafts.

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