A wall strength detection device for construction engineering

Abstract

The utility model discloses a wall strength detection device for construction engineering relates to the field of construction engineering, including trolley and setting lift platform mechanism on trolley bottom plate, the lift platform mechanism includes the slippage horizontal board of vertical movement's triangle shape, every side middle part of slippage horizontal board has the installation riser that extends upwards and downwards integrally, the installation riser is perpendicular with the corresponding side of slippage horizontal board, and is vertically fixedly connected with electric push rod on the one side away from slippage horizontal board, through setting slippage horizontal board of triangle shape and the installation riser of each side, match electric push rod, automatic leveling mechanism, integrate acoustic flaw detection, cleaning, rebound detection function assembly, combine camera accurate positioning, do not need artificial repeated adjustment equipment, realize multifunctional integration detection, avoid repeated positioning, reduce manual operation dependence, reduce to detection personnel skill requirement, improve detection convenience.

Description

Technical Field

[0001] This utility model relates to the field of building engineering, and in particular to a wall strength testing device for construction projects. Background Technology

[0002] Wall strength testing in building construction is a core component of ensuring structural safety, directly impacting the overall stability and lifespan of a building. Its importance is primarily reflected in three aspects: First, it establishes a solid safety baseline by identifying insufficient wall material strength and construction defects early on, preventing later accidents such as cracking and collapse. Second, it controls project quality by ensuring wall strength meets design specifications and national standards, serving as a crucial basis for project acceptance. Third, it reduces maintenance costs; timely identification of potential hazards reduces post-construction repair expenses and extends the building's service life. Whether for quality control of new construction or safety assessment of older buildings, wall strength testing plays an irreplaceable role and is a vital part of the building construction quality and safety management system.

[0003] Existing wall strength testing technologies rely heavily on human experience, from equipment leveling and manual application of coupling agent to controlling impact pressure. Furthermore, ultrasonic and rebound testing require separate operations and repeated positioning. Data must be manually recorded and then imported for analysis, making real-time processing and automatic anomaly warning impossible. This results in high skill requirements for personnel, necessitating professional testing engineers and incurring significant training costs. Single-point testing is time-consuming, often requiring multiple people to collaborate, leading to substantial manpower investment. Human error can also cause rework, further increasing labor costs. Utility Model Content

[0004] In view of the problems mentioned in the background art, the present invention provides a wall strength testing device for construction projects.

[0005] The technical solution adopted by this utility model is: a wall strength testing device for construction projects, including a handcart and a lifting platform mechanism set on the bottom plate of the handcart. The lifting platform mechanism includes a triangular sliding horizontal plate that can move vertically. Each side of the sliding horizontal plate has an integrally formed mounting vertical plate extending upward and downward. The mounting vertical plate is perpendicular to the corresponding side of the sliding horizontal plate, and an electric push rod is vertically fixedly connected to the side facing away from the sliding horizontal plate. The telescopic ends of the electric push rods extend horizontally outward, and each telescopic end... Each of the mounting plates is equipped with an automatic leveling mechanism. Two adjacent automatic leveling mechanisms are respectively equipped with an acoustic flaw detection component for acoustic flaw detection and a cleaning component to assist the acoustic flaw detection component in its operation. The remaining automatic leveling mechanism is equipped with a rebound detection mechanism for measuring the wall strength. The automatic leveling mechanism includes a hinged ball fixedly connected to the telescopic end of the electric push rod. The ball head of the hinged ball is away from the electric push rod and a stepped disc-shaped leveling plate is movably hinged at the ball head end. A camera is fixedly connected to the center of the top surface of each mounting plate.

[0006] A further feature of this invention is that the leveling disc has three positioning pins arranged in a circular array at equal intervals around the axis of the leveling disc on the side away from the hinge ball. The non-pointed end of each positioning pin is slidably connected to the leveling disc. The arc surface of the positioning pin embedded in the leveling disc has a flange structure. A spring is sleeved on the positioning pin. The spring is located inside the leveling disc, and its two ends abut against the flange structure of the positioning pin and the inner bottom wall of the leveling disc, respectively. The present invention is further configured such that the lifting platform mechanism includes two fixed horizontal plates located on the upper and lower sides of the sliding horizontal plate respectively. The two fixed horizontal plates are parallel to the sliding horizontal plate and a plurality of guide rods are provided between the two fixed horizontal plates. Each guide rod passes through the sliding horizontal plate and its upper and lower ends are respectively fixed perpendicularly to the corresponding fixed horizontal plate. The bottom surface of the lower fixed horizontal plate is rotatably connected to the upper surface of the handcart base plate through a bearing.

[0007] The present invention is further configured such that the lifting platform mechanism includes a turntable motor embedded and fixed inside the bottom plate of the handcart. The output end of the turntable motor extends vertically upward and is fixedly connected to the center of the bottom surface of the fixed horizontal plate located below. A lifting motor is fixedly connected to the center of the top surface of the fixed horizontal plate located above. The output end of the lifting motor extends vertically downward through the corresponding fixed horizontal plate and is fixedly connected to a threaded rod at the extension end. The threaded rod is threadedly connected to the center of the sliding horizontal plate, and its lower end is rotatably connected to the top surface of the fixed horizontal plate below.

[0008] The present invention is further configured such that the acoustic flaw detection component includes an ultrasonic transducer that is embedded and fixed in the center of the corresponding leveling plate and whose detection end extends out of the leveling plate and points outward. A spray head is fixedly sleeved on the outer surface of the ultrasonic transducer. The spray head has a cavity structure inside. A plurality of spray holes communicating with the cavity structure inside the spray head are opened on the sleeved surface near the detection end of the ultrasonic transducer. Each spray hole is equidistantly arranged in a circular array around the axis of the ultrasonic transducer. A connection port communicating with the cavity inside the spray head is fixedly connected to the outer arc surface of the spray head.

[0009] A further feature of this invention is that the cleaning component includes a cleaning motor that is embedded and fixed within the center of the corresponding leveling plate and whose output end extends outward, and the output end of the cleaning motor is fixedly connected to a cleaning head.

[0010] A further feature of this invention is that the rebound detection mechanism includes a rebound spring fixedly embedded in the center of the corresponding leveling plate, and the detection end of the rebound spring extends out of the leveling plate and is perpendicular to the surface of the leveling plate away from the hinge ball.

[0011] A further feature of this invention is that a storage tank is fixedly connected to the top surface of the fixed horizontal plate located above, and a pump is fixedly connected to the outer wall of the storage tank near the ultrasonic flaw detection component. The inlet end of the pump is connected to the inside of the storage tank, and the outlet end is connected to the connection port of the injection head through the inside of the pipe.

[0012] A further feature of this invention is that an upward-facing sludge hopper is fixedly connected to the outer surface of the bottom plate of the handcart on the side away from the handle, the opening of the sludge hopper is flush with the top surface of the bottom plate of the handcart, and a placement rack is fixedly connected to the top surface of the bottom plate of the handcart near the handle.

[0013] The beneficial effects of this utility model are: In this invention, by setting a triangular sliding horizontal plate and mounting vertical plates on each side, combined with an electric push rod and an automatic leveling mechanism, it integrates acoustic flaw detection, cleaning, and rebound detection functional components. Combined with precise positioning by a camera, it eliminates the need for repeated manual adjustments to the equipment, achieving multi-functional integrated detection, avoiding repetitive positioning, reducing reliance on manual operation, lowering the skill requirements for inspection personnel, and improving the convenience of inspection.

[0014] In this invention, a leveling structure consisting of positioning pins and springs ensures precise contact between the testing components and the wall surface. The turntable motor and lifting motor enable multi-angle and multi-height adjustments. The cleaning component automatically removes impurities from the wall surface, the spray head evenly delivers the coupling agent, and the testing data is transmitted in real time, eliminating the need for manual recording and import. This shortens the testing time at a single point, reduces manpower input, lowers rework costs due to human error, and improves testing efficiency and accuracy. Attached Figure Description

[0015] Figure 1 This is an isometric structural diagram of the present invention in the rear-view direction; Figure 2 This is a cross-sectional three-dimensional structural diagram of the lifting platform mechanism and other parts in this utility model; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view of point B in the middle; Figure 5 This is an isometric structural diagram of the lifting platform mechanism and other parts of this utility model from the front view direction; Figure 6 yes Figure 5 A magnified view of point C in the middle.

[0016] Figure 7 This is a cross-sectional three-dimensional structural diagram of the rebound detection mechanism and other parts in this utility model.

[0017] The diagram is marked as follows: 1. Handcart; 2. Sewage hopper; 3. Sliding crossbar; 4. Guide rod; 5. Fixed crossbar; 6. Positioning pin; 7. Leveling plate; 8. Hinge ball; 9. Electric push rod; 10. Mounting vertical plate; 11. Camera; 12. Storage tank; 13. Lifting motor; 14. Threaded rod; 15. Rebound hammer; 16. Placement rack; 17. Cleaning head; 18. Ultrasonic transducer; 19. Injection head; 20. Cleaning motor; 21. Turntable motor; 22. Spring; 23. Injection hole; 24. Connection port; 25. Material pump. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] The following is in conjunction with the appendix Figure 1-7 The present invention will be further described below.

[0020] To address the problems existing in the background art, this application proposes the following technical solution: In this utility model, such as Figure 1 , Figure 2 , Figure 5 As shown, a wall strength testing device for construction projects includes a handcart 1 and a lifting platform mechanism mounted on the base of the handcart 1. The lifting platform mechanism includes a triangular sliding plate 3 capable of vertical movement. Each side of the sliding plate 3 has an integrally formed mounting vertical plate 10 extending upwards and downwards at its center. The mounting vertical plate 10 is perpendicular to the corresponding side of the sliding plate 3, and an electric push rod 9 is vertically fixedly connected to the side facing away from the sliding plate 3. The telescopic ends of the electric push rods 9 extend horizontally outwards, and each telescopic end is equipped with a self-... The automatic leveling mechanism includes two adjacent automatic leveling mechanisms, each equipped with an acoustic flaw detection component for acoustic flaw detection and a cleaning component to assist the acoustic flaw detection component in its operation. The remaining automatic leveling mechanism is equipped with a rebound detection mechanism for measuring the strength of the wall. The automatic leveling mechanism includes a hinged ball 8 fixedly connected to the telescopic end of the electric push rod 9. The ball head of the hinged ball 8 is away from the electric push rod 9 and a stepped disc-shaped leveling disc 7 is movably hinged at the ball head end. A camera 11 is fixedly connected to the center of the top surface of each mounting vertical plate 10.

[0021] In this technical solution, the device uses a handcart 1 as a mobile carrier, which facilitates flexible movement across the construction site and solves the problem of traditional testing equipment being bulky and difficult to transport. The triangular sliding horizontal plate 3 has a stable structure and can reasonably arrange the three functional components. The mounting vertical plate 10 is integrally formed with the sliding horizontal plate 3, and the connection is firm and not easy to loosen, providing a stable installation foundation for the electric push rod 9. The electric push rod 9 can accurately push the components close to the wall, and the automatic leveling mechanism can cope with uneven wall surfaces to ensure that the testing components fit the wall surface. The acoustic flaw detection component detects internal defects in the wall, the cleaning component removes residual coupling agent, and the rebound detection mechanism measures the surface strength, realizing all-round detection. The camera 11 captures images in real time, which helps to accurately locate the detection points, reduce the error of manual observation, and improve the detection efficiency and data accuracy.

[0022] The model and size of the handcart 1 can be customized as needed, and the camera 11 should be a model with an adjustable lens viewing angle to facilitate cooperation with the equipped computer and software to meet work needs.

[0023] In this utility model, such as Figure 1 , Figure 3 , Figure 4 As shown, three positioning pins 6 are arranged in a circular array at equal intervals around the axis of the leveling plate 7 on the side away from the hinge ball 8. The non-pointed end of the positioning pin 6 is slidably connected to the leveling plate 7. The arc surface of the positioning pin 6 embedded in the leveling plate 7 is provided with a flange structure. A spring 22 is sleeved on the positioning pin 6. The spring 22 is located inside the leveling plate 7, and its two ends abut against the flange structure of the positioning pin 6 and the inner bottom wall of the leveling plate 7, respectively.

[0024] In this technical solution, three positioning pins 6 are evenly distributed, which can sensitively detect the tilt of the wall. The positioning pins 6 can slide within the leveling plate 7 and work in conjunction with the spring 22. When they contact the wall, the positioning pin 6 that contacts the wall first will compress the spring 22. Under the reaction force of the spring 22, the leveling plate 7 adjusts its angle around the hinge ball 8 until all the positioning pins 6 are perpendicular to the wall, achieving automatic leveling. No manual adjustment is required, reducing the difficulty and labor intensity of operation, avoiding human leveling errors, and the buffering effect of the spring 22 can protect the wall and the positioning pins 6, extend the service life of the equipment, and ensure the accurate conduct of subsequent testing.

[0025] In this utility model, such as Figure 1 , Figure 2 As shown, the lifting platform mechanism also includes two fixed horizontal plates 5 located on the upper and lower sides of the sliding horizontal plate 3, respectively. Both fixed horizontal plates 5 are parallel to the sliding horizontal plate 3 and several guide rods 4 are provided between the two fixed horizontal plates 5. Each guide rod 4 passes through the sliding horizontal plate 3 and its upper and lower ends are respectively fixed perpendicularly to the corresponding fixed horizontal plate 5. The bottom surface of the lower fixed horizontal plate 5 is rotatably connected to the upper surface of the handcart 1 base plate through bearings.

[0026] In this technical solution, the upper and lower fixed horizontal plates 5 and the guide rod 4 form a stable frame. The guide rod 4 passes through the sliding horizontal plate 3 and can guide the sliding horizontal plate 3 to move smoothly up and down, preventing deviation or shaking during movement. The lower fixed horizontal plate 5 is connected to the handcart 1 through a bearing and can rotate flexibly to drive the upper components to switch directions, making it convenient for different functional components to be aligned with the same detection point without frequent movement of the handcart 1, simplifying the operation process. The bearing connection can also reduce friction during rotation, reduce equipment wear, and improve overall operational stability.

[0027] In this utility model, such as Figure 1 , Figure 2 As shown, the lifting platform mechanism also includes a turntable motor 21 embedded and fixed inside the base plate of the handcart 1. The output end of the turntable motor 21 extends vertically upward and is fixedly connected to the center of the bottom surface of the fixed horizontal plate 5 located below. A lifting motor 13 is fixedly connected to the center of the top surface of the fixed horizontal plate 5 located above. The output end of the lifting motor 13 extends vertically downward through the corresponding fixed horizontal plate 5 and is fixedly connected to a threaded rod 14 at the extension end. The threaded rod 14 is threadedly connected to the center of the sliding horizontal plate 3, and its lower end is rotatably connected to the top surface of the fixed horizontal plate 5 below.

[0028] In this technical solution, the turntable motor 21 drives the fixed horizontal plate 5 and the sliding horizontal plate 3 to rotate, which can quickly switch the detection position and make different components accurately aligned with the detection point. Compared with manual adjustment, it is more efficient and the angle is more accurate. The lifting motor 13 drives the sliding horizontal plate 3 to rise and fall through the threaded rod 14. The component height can be adjusted according to the detection requirements to adapt to the detection of walls of different heights. The threaded transmission method can accurately control the lifting distance and has a self-locking function, so that the component can be stably stopped at the specified height, avoiding accidental movement during the detection process and ensuring detection safety and data reliability.

[0029] In this utility model, such as Figure 1 , Figure 3 As shown, the acoustic flaw detection assembly includes an ultrasonic transducer 18 that is embedded and fixed in the center of the corresponding leveling plate 7 and whose detection end extends out of the leveling plate 7 and points outward. An injection head 19 is fixedly sleeved on the outer surface of the ultrasonic transducer 18. The injection head 19 has a cavity structure inside. Several injection holes 23 that communicate with the cavity structure inside the injection head 19 are opened on the sleeved surface near the detection end of the ultrasonic transducer 18. Each injection hole 23 is distributed in a circumferential array at equal intervals around the axis of the ultrasonic transducer 18. A connection port 24 that communicates with the cavity inside the injection head 19 is fixedly connected to the outer arc surface of the injection head 19.

[0030] In this technical solution, the ultrasonic transducer 18 is responsible for detecting defects such as cracks and voids inside the wall. The injection head 19 is fitted outside the transducer, and its internal cavity can store coupling agent. The circumferentially distributed nozzles can evenly spray the coupling agent between the transducer and the wall surface, eliminating air interference during ultrasonic wave propagation and improving detection accuracy. The connection port 24 is used to connect the coupling agent supply device to realize automatic supply of coupling agent, eliminating the need for manual application, reducing operation steps, avoiding uneven application that affects the detection effect, and improving the continuity and efficiency of the detection work.

[0031] In specific implementation, the working end of the injection head 19 with the injection hole 23 should be slightly longer than the limit length of the detection end of the ultrasonic transducer 18. Correspondingly, the natural relaxation length of the positioning pin 6 on the leveling plate 7 in the non-working state should be slightly longer than the limit length of the working end of the injection head 19, so as to ensure the normal operation of the corresponding automatic leveling mechanism.

[0032] In this utility model, such as Figure 4 As shown, the cleaning component includes a cleaning motor 20 that is embedded and fixed in the center of the corresponding leveling plate 7 and whose output end extends outward. The output end of the cleaning motor 20 is fixedly connected to a cleaning head 17.

[0033] In this technical solution, the cleaning motor 20 drives the cleaning head 17 to rotate at high speed, which can quickly remove the coupling agent remaining on the wall after sonic flaw detection, and prevent the coupling agent from drying and adhering to the wall, affecting the accuracy of subsequent rebound testing. Compared with manual cleaning, the cleaning is more thorough and efficient, and can accurately target the test points without damaging the surrounding wall surface. There is no need to carry additional cleaning tools, simplifying the testing process, making the connection between each link smoother, and improving the overall testing efficiency.

[0034] The main function of the cleaning head 17 is to clean the coupling agent remaining on the wall after ultrasonic testing. Therefore, its specific shape can be customized according to actual needs. For a specific shape reference, please refer to... Figure 4 As shown, it only needs to have a few scrapers, and the length of the working end of the cleaning head 17 used for cleaning should be shorter than the natural relaxation length of the positioning pin 6 when it is not in operation, so as to ensure the normal operation of the corresponding automatic leveling mechanism.

[0035] In this utility model, such as Figure 7 As shown, the rebound detection mechanism includes a rebound hammer 15 that is embedded and fixed in the center of the corresponding leveling plate 7. The detection end of the rebound hammer 15 extends out of the leveling plate 7 and is perpendicular to the surface of the leveling plate 7 away from the hinge ball 8.

[0036] In this technical solution, the rebound hammer 15 is fixed at the center of the leveling plate 7. With the help of the automatic leveling mechanism, it can be ensured that the rebound hammer 15 is perpendicular to the wall surface, avoiding data distortion caused by deviation in the contact angle. The fixed connection method enhances the stability of the rebound hammer 15, preventing it from shaking or shifting during testing. It eliminates the need for manual hand operation, reducing labor intensity. At the same time, it ensures that the pushing force of the rebound hammer 15 on the wall surface is consistent, making each test data comparable and improving the reliability of the test results.

[0037] Among them, the positioning pin 6 on the leveling plate 7 corresponding to the rebound hammer 15 should have a natural relaxation length that is slightly longer than the detection end length of the rebound hammer 15 when it is not in operation, so as to ensure the normal operation of the automatic leveling mechanism corresponding to it.

[0038] In this utility model, such as Figure 1 , Figure 5 , Figure 6 As shown, a storage tank 12 is fixedly connected to the top surface of the fixed horizontal plate 5 located above. A pump 25 is fixedly connected to the outer wall of the storage tank 12 near the ultrasonic flaw detection component. The feed end of the pump 25 is connected to the inside of the storage tank 12, and the discharge end is connected to the connection port 24 on the injection head 19 through the inside of the pipe.

[0039] In this technical solution, the storage tank 12 is used to store the coupling agent required for ultrasonic flaw detection. It has sufficient capacity to meet the needs of long-term continuous testing and avoids testing interruption caused by frequent addition of coupling agent. The pump 25 can accurately deliver the coupling agent in the storage tank 12 to the injection head 19, control the delivery speed and dosage, and ensure a stable and uniform supply of coupling agent. This not only ensures the testing effect but also reduces coupling agent waste, lowers testing costs, and improves the automation and practicality of the device.

[0040] The appropriate model of the pump 25 can be selected according to the properties of the coupling agent used, and the pipe connecting the pump 25 and the connection port 24 is a flexible hose.

[0041] In this utility model, such as Figure 1 , Figure 2 As shown, a sludge hopper 2 with its opening facing upward is fixedly connected to the outer surface of the bottom plate of the handcart 1 away from the handle. The opening of the sludge hopper 2 is flush with the top surface of the bottom plate of the handcart 1. A placement rack 16 is fixedly connected to the top surface of the bottom plate of the handcart 1 near the handle.

[0042] In this technical solution, the sludge hopper 2 is installed on the side close to the wall. The coupling agent removed by the cleaning component can fall directly into the sludge hopper 2, avoiding pollution of the construction site floor, reducing the amount of subsequent cleaning work, and meeting the requirements of civilized construction on the construction site. The shelf 16 is located near the handle of the handcart 1, which is convenient for storing items such as computers, power supply components, testing tools, and spare parts, making it more convenient for operators to work and improving work efficiency.

[0043] The length of the sludge hopper 2 after it is installed on the base plate of the handcart 1 should be slightly longer than the sum of the dimensions of the leveling mechanism and the electric push rod 9 in the unextended state (initial state). The installation position of the placement rack 16 should be outside the range that the dimensions of the electric push rod 9 and its components can reach.

[0044] The method of using this utility model is as follows: The user first pushes the handcart 1, which is equipped with various detection elements, close to the wall. The camera 11 on the vertical plate 10 captures the image of the test point on the wall in real time and transmits it to the computer, accurately guiding the operator to move the device to the designated detection position. After it is in place, the turntable motor 21 starts, driving the fixed horizontal plate 5 and the sliding horizontal plate 3 to rotate to a suitable angle. Then the electric push rod 9 extends, pushing the automatic leveling mechanism to move slowly towards the wall. If the wall is tilted, the three positioning pins 6 on the leveling plate 7 will contact the wall in turn. The positioning pin 6 that contacts first is pushed and compresses the internal spring 22. Under the reaction force of the spring 22, the leveling plate 7 tilts and adjusts flexibly around the hinge ball 8, so that the tips of all positioning pins 6 are perpendicular to the wall and the leveling plate 7 is parallel to the wall. After leveling is completed, the sound... The injection head 19 of the ultrasonic flaw detection component is closely attached to the wall surface. The coupling agent in the storage tank 12 is drawn by the pump 25 and transported through the pipeline to the cavity of the injection head 19. It is then evenly injected into the gap between the detection end of the ultrasonic transducer 18 and the wall surface through the circumferentially distributed nozzles. The ultrasonic transducer 18 simultaneously transmits the flaw detection data back to the computer. After the test is completed, the electric push rod 9 retracts, driving the component to reset. The turntable motor 21 rotates to switch positions, pushing the cleaning component to that position. The cleaning motor 20 drives the cleaning head 17 to rotate at high speed to remove the residual coupling agent on the wall surface. After completion, the cleaning component resets. Finally, the turntable motor 21 drives the rebound detection mechanism to position. The electric push rod 9 pushes the rebound hammer 15 to continuously push against the wall surface. The computer continues to collect and record the wall strength test data. The entire process can be repeated as needed.

[0045] The wiring diagrams for the electric push rod 9, camera 11, lifting motor 13, cleaning motor 20, turntable motor 21, and material pump 25 in this utility model are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the electric push rod 9, camera 11, lifting motor 13, cleaning motor 20, turntable motor 21, and material pump 25 in this utility model will not be explained in detail.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A wall strength testing device for construction projects, comprising a handcart (1) and a lifting platform mechanism mounted on the base of the handcart (1), characterized in that: The lifting platform mechanism includes a triangular sliding horizontal plate (3) that can move vertically; each side of the sliding horizontal plate (3) has an integrally formed mounting vertical plate (10) extending upward and downward, the mounting vertical plate (10) is perpendicular to the corresponding side of the sliding horizontal plate (3), and an electric push rod (9) is vertically fixedly connected to the side facing away from the sliding horizontal plate (3). The telescopic end of the electric push rod (9) extends horizontally outward and each telescopic end is provided with an automatic leveling mechanism, wherein two adjacent automatic leveling mechanisms are provided with Each is equipped with an acoustic flaw detection component for acoustic flaw detection and a cleaning component to assist the acoustic flaw detection component in its operation. The remaining automatic leveling mechanism is equipped with a rebound detection mechanism for measuring the strength of the wall. The automatic leveling mechanism includes a hinged ball (8) fixedly connected to the telescopic end of the electric push rod (9). The ball head of the hinged ball (8) is far away from the electric push rod (9) and a stepped disc-shaped leveling disc (7) is movably hinged at the ball head end. A camera (11) is fixedly connected to the middle of the top surface of each of the mounting vertical plates (10).

2. The wall strength testing device for construction projects according to claim 1, characterized in that: The leveling plate (7) away from the hinge ball (8) has three positioning pins (6) arranged in a circular array at equal intervals around the axis of the leveling plate (7). The non-pointed end of the positioning pin (6) is slidably connected to the leveling plate (7). The circular arc surface of the positioning pin (6) embedded in the leveling plate (7) has a flange structure. A spring (22) is sleeved on the positioning pin (6). The spring (22) is located inside the leveling plate (7), and its two ends abut against the flange structure of the positioning pin (6) and the inner bottom wall of the leveling plate (7), respectively.

3. The wall strength testing device for construction projects according to claim 1, characterized in that: The lifting platform mechanism also includes two fixed horizontal plates (5) located on the upper and lower sides of the sliding horizontal plate (3). The two fixed horizontal plates (5) are parallel to the sliding horizontal plate (3) and a number of guide rods (4) are provided between the two fixed horizontal plates (5). Each guide rod (4) passes through the sliding horizontal plate (3) and its upper and lower ends are respectively fixed perpendicularly to the corresponding fixed horizontal plate (5). The bottom surface of the lower fixed horizontal plate (5) is rotatably connected to the upper surface of the handcart (1) base plate through a bearing.

4. The wall strength testing device for construction projects according to claim 1, characterized in that: The lifting platform mechanism also includes a turntable motor (21) embedded and fixed inside the bottom plate of the handcart (1). The output end of the turntable motor (21) extends vertically upward and is fixedly connected to the center of the bottom surface of the fixed horizontal plate (5) located below. The center of the top surface of the fixed horizontal plate (5) located above is fixedly connected to a lifting motor (13). The output end of the lifting motor (13) extends vertically downward and penetrates the corresponding fixed horizontal plate (5). A threaded rod (14) is fixedly connected at the extension end. The threaded rod (14) is threadedly connected to the center of the sliding horizontal plate (3), and its lower end is rotatably connected to the top surface of the fixed horizontal plate (5) below.

5. The wall strength testing device for construction projects according to claim 1, characterized in that: The acoustic flaw detection assembly includes an ultrasonic transducer (18) that is embedded and fixed in the center of the corresponding leveling plate (7) and whose detection end extends out of the leveling plate (7) and points outward. An injection head (19) is fixedly sleeved on the outer surface of the ultrasonic transducer (18). The injection head (19) has a cavity structure inside. Several injection holes (23) communicating with the cavity structure inside the injection head (19) are opened on the sleeved surface near the detection end of the ultrasonic transducer (18). Each injection hole (23) is distributed in a circumferential array at equal intervals around the axis of the ultrasonic transducer (18). A connection port (24) communicating with the cavity inside the injection head (19) is fixedly connected to the outer arc surface of the injection head (19).

6. The wall strength testing device for construction projects according to claim 1, characterized in that: The cleaning component includes a cleaning motor (20) that is embedded and fixed in the center of the corresponding leveling plate (7) and whose output end extends outward. The output end of the cleaning motor (20) is fixedly connected to a cleaning head (17).

7. The wall strength testing device for construction projects according to claim 1, characterized in that: The rebound detection mechanism includes a rebound hammer (15) embedded in the center of the corresponding leveling plate (7).

8. A wall strength testing device for construction projects according to claim 4 or 5, characterized in that: A storage tank (12) is fixedly connected to the top surface of the fixed horizontal plate (5) located above. A pump (25) is fixedly connected to the outer wall of the storage tank (12) near the ultrasonic flaw detection component. The feed end of the pump (25) is connected to the inside of the storage tank (12), and the discharge end is connected to the connection port (24) on the injection head (19) through the inside of the pipe.

9. A wall strength testing device for construction projects according to claim 1, characterized in that: A sludge hopper (2) with its opening facing upwards is fixedly connected to the outer surface of the bottom plate of the handcart (1) away from the handle. The opening of the sludge hopper (2) is flush with the top surface of the bottom plate of the handcart (1). A placement rack (16) is fixedly connected to the top surface of the bottom plate of the handcart (1) near the handle.

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