Concrete quality detection device and method for engineering

Abstract

The invention belongs to the technical field of concrete quality detection, particularly relates to a concrete quality detection device and method for engineering, and aims to solve the problem that it is difficult to flexibly regulate and control output pressure according to a pressure imbalance condition. The following scheme is provided: the device comprises a workbench, the top end of the workbench is fixedly connected with a lifting column, and the top end of the lifting column is fixedly connected with a placement frame; a measuring assembly is arranged on the workbench, the placing plate is located in the middle of the measuring assembly, a pressure adjusting assembly is arranged at the top end of the placing plate, a supporting plate is arranged above the pressure adjusting assembly, a hydraulic rod is fixedly connected to the top end of the supporting plate, and a pressing frame is arranged below the supporting plate. According to the engineering concrete quality detection device and method disclosed by the invention, the output pressure can be flexibly adjusted according to the specific condition of pressure imbalance, the pressure test requirements of different concrete samples are met, the accurate adjustment of the pressure is realized, and the accuracy of the test result is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete quality detection, and in particular to a device and method for detecting the quality of engineering concrete. Background Art

[0002] An engineering concrete quality detection device is a device used to detect the quality of concrete. It usually includes multiple components and aims to evaluate the quality and performance of concrete through different detection methods and techniques. By applying pressure, the initial maximum bearing pressure is obtained, and then the quality of the concrete block is detected.

[0003] It is difficult to flexibly adjust the output pressure according to the actual situation of pressure imbalance. Facing the pressure test requirements of different concrete samples, the adaptability is poor, and the precise adjustment of pressure cannot be achieved, seriously affecting the accuracy of the test results. Summary of the Invention

[0004] The present invention discloses a device and method for detecting the quality of engineering concrete, aiming to solve the technical problems in the background art that it is difficult to flexibly adjust the output pressure according to the pressure imbalance situation, the adaptability to the pressure test requirements of different concrete samples is poor, the pressure cannot be precisely adjusted, and the accuracy of the test results is affected.

[0005] An engineering concrete quality detection device proposed by the present invention includes a workbench. A lifting column is fixedly connected to the top of the workbench. A placement rack is fixedly connected to the top of the lifting column. A measuring assembly is arranged on the workbench, and the placement plate is located in the middle of the measuring assembly. A pressure adjustment assembly is arranged on the top of the placement plate. A support plate is arranged above the pressure adjustment assembly. A hydraulic rod is fixedly connected to the top of the support plate. A pressing frame is arranged below the support plate. The pressure adjustment assembly is located above the pressing frame;

[0006] The pressure adjustment assembly includes a plurality of pressure sensors. A plurality of rectangular holes are formed in the pressing frame. The top ends of the pressure sensors are fixedly connected with pressing plates, and the outer sides of the pressing plates are movably connected with both sides inside the rectangular holes;

[0007] The measuring assembly includes symmetric scale plates. Slide holes are formed in the scale plates, and symmetric pointers are movably connected inside the slide holes. Baffles are fixedly connected to the opposite sides of the pointers.

[0008] In a preferred embodiment, the pressure regulating assembly further includes an air pump. An annular frame is fixedly connected to the outside of the air pump. The bottom end of the annular frame is fixedly connected to the top end of the pressing frame. A tracheal pipeline is fixedly connected to the front end of the air pump. A plurality of two-way shunt pipelines are fixedly connected to the outside of the tracheal pipeline. One end of each two-way shunt pipeline far from the tracheal pipeline is fixedly connected to a connecting pipe. One end of each connecting pipe far from the two-way shunt pipeline is fixedly connected to an air delivery pipe. The bottom ends of the plurality of air delivery pipes are all fixedly connected to a retaining pipe. The bottom end of the retaining pipe is fixedly connected to the top end of the telescopic rod. Fixed frames are fixedly connected to the outside of the retaining pipes. Telescopic tubes are fixedly connected to the top ends of the pressing plates. The bottom end of the fixed frame is fixedly connected to the top end of the telescopic tube. A tension spring is fixedly connected to the bottom end of each retaining pipe. The bottom end of the tension spring is fixedly connected to the top end of the pressing plate. The tension springs are all located inside the telescopic tubes. Seals are fixedly connected to the upper sides of the plurality of connecting pipes. Round holes are formed in the seals and the connecting pipes. Servo motors are fixedly connected above the seals. The power output shafts of the servo motors are all connected to a rotating rod through a coupling. The rotating rod is movably connected between the round holes. Rotating plates are fixedly connected to the outside of the rotating rod. The outside of the rotating plate is in contact with the inside of the connecting pipe.

[0009] By setting up a pressure regulating component, during the pressure test, the concrete sample is placed on the placement plate, the hydraulic rod drives the pressure regulating component to descend, so that the pressing frame contacts the upper part of the concrete sample. At this time, the pressure sensor is in place and ready to detect the pressure conditions on both sides above the concrete sample. The pressure test starts, and the pressure sensor continuously detects the pressure on both sides above the concrete sample. The sensor converts the detected pressure data into an electrical signal and transmits it to the control system for analysis and comparison. When the control system analyzes and finds that the pressures on both sides above the concrete sample are unbalanced, it triggers the adjustment operation of the pressing plate. First, the air pump is started, and compressed air is transported through the air pipe to multiple two-way shunt pipes. After the compressed air is shunted through the two-way shunt pipes, it enters the air delivery pipe through the connecting pipe, and then is transmitted to the retaining pipe. The compressed air entering the retaining pipe, along with the elongation of the telescopic pipe and the stretching of the tension spring, makes the pressing plate move downward in the rectangular hole, applying an additional pressure to the concrete sample to adjust the balance of the pressures on both sides. During the downward pressing process of the pressing plate, according to the specific pressure adjustment requirements, the servo motor can be started. The servo motor drives the rotating rod to rotate through the coupling, and the rotating plate on the rotating rod rotates in the connecting pipe accordingly. The rotation of the rotating plate can adjust the gas flow rate and pressure distribution in the connecting pipe, further precisely controlling the downward pressing degree and pressure adjustment effect of the pressing plate to ensure that the pressures on both sides above the concrete sample reach a balanced state. During the process of the pressing plate pressing down to adjust the pressure, the pressure sensor continuously monitors the pressure changes on both sides above the concrete sample and feeds the data back to the control system. The control system continuously adjusts parameters such as the output pressure of the air pump and the rotation angle of the servo motor according to the real-time pressure data until the pressures on both sides above the concrete sample reach a balance, completing the pressure adjustment process. During the process, the output pressure can be flexibly adjusted according to the specific situation of the pressure imbalance to adapt to the pressure test requirements of different concrete samples, realizing the precise adjustment of the pressure and ensuring the accuracy of the test results.

[0010] In a preferred solution, one side of the workbench is fixedly connected with an extension frame, the top of the workbench is fixedly connected with a plurality of support frames, and both the measuring component and the pressure regulating component are located among the plurality of support frames. The tops of the support frames are fixedly connected with top plates, and the bottom ends of the top plates are fixedly connected with the top ends of the hydraulic rods.

[0011] In a preferred embodiment, the measuring assembly further includes a bidirectional motor. The bottom end of the bidirectional motor is fixedly connected to the top end of the extension frame. Symmetrical limit frames are provided at the front end of the bidirectional motor, and the top ends of the limit frames are fixedly connected to both the workbench and the top end of the extension frame. A plurality of auxiliary round rods are fixedly connected to both ends inside the limit frames. The power output shaft of the bidirectional motor is connected to a bidirectional screw through a coupling. The outer ends of the bidirectional screw are movably connected to the inside of the limit frames close to the bidirectional motor. Two symmetrical sliding seats are movably connected to the outer sides of both the bidirectional screw and the auxiliary round rods. Connecting frames are fixedly connected to the top ends of the symmetrical sliding seats. Telescopic drive rods are fixedly connected to one side of the connecting frames close to the bidirectional motor, and the front ends of the telescopic drive rods are fixedly connected to one ends of the symmetrical baffles close to the bidirectional motor. Chute holes are formed in the connecting frames, and the baffles are movably connected between the inner parts of the chute holes. Pulling ropes are fixedly connected to the symmetrical baffles far from the bidirectional motor. One ends of the two pulling ropes are movably connected to rotating shafts. The rotating shafts are connected to drive motors through couplings on the side close to the bidirectional motor. Motor frames are fixedly connected to one sides of the drive motors, and the bottom ends of the motor frames are fixedly connected to one sides of the connecting frames. Expansion rods are fixedly connected to the inside of one side of the connecting frames. The expansion rods are located directly below the motor frames, and the front ends of the expansion rods are fixedly connected to one ends of the baffles close to the drive motors. The opposite sides of the connecting frames are fixedly connected to one sides of the scale plates.

[0012] By setting up a measuring component, after the concrete sample is placed on the placing plate and the measuring component starts to prepare for measuring its initial data, the bidirectional motor starts, driving the bidirectional screw to rotate. Since the thread directions at both ends of the bidirectional screw are opposite, when rotating, two symmetrical sliding seats will move towards each other along the bidirectional screw and the auxiliary round rod, making the baffle approach the concrete sample. The auxiliary round rod plays a role in guiding and stabilizing the movement of the sliding seat. As the sliding seat moves, the connecting frame also moves accordingly. The telescopic driving rod on the connecting frame pushes the baffle on the side close to the bidirectional motor towards the concrete sample. At the same time, the driving motor starts, driving the rotating shaft to rotate. The rotating shaft winds and pulls the rope, pulling the baffle on the side away from the bidirectional motor towards the concrete sample as well. When the baffles on both sides contact the two sides of the concrete material, the bidirectional motor and the driving motor stop operating. At this time, the position of the pointer in the sliding hole corresponds to the scale on the scale plate. By reading the position of the pointer on the scale plate, the initial data of the concrete sample can be obtained. After measuring the initial data, the bidirectional motor rotates in reverse, driving the sliding seats to move away from each other. The connecting frame moves accordingly, and the telescopic driving rod pulls the baffle on the side close to the bidirectional motor away from the concrete sample. At the same time, the driving motor rotates in reverse, and the rotating shaft releases the pulling rope. The baffle on the side away from the bidirectional motor also moves away from the concrete sample under the action of the telescopic rod (the telescopic rod plays a certain supporting and resetting role), making the entire measuring component move away from the concrete sample to make room for the pressure test. After the pressure test is completed, the bidirectional motor rotates forward again, repeating the steps in the initial measurement stage, making the baffles on both sides contact the two sides of the concrete sample again. At this time, the position of the pointer in the sliding hole will change due to the change of the concrete sample after the pressure test. Reading the position of the pointer on the scale plate again can obtain the relevant data of the concrete sample after the pressure test, so as to evaluate and analyze the performance of the concrete sample. During the process, measurements can be carried out before and after the pressure test, which is convenient for directly comparing the data and intuitively reflecting the change of the concrete sample under the action of pressure, helping to evaluate its performance.

[0013] A method for using a concrete quality detection device for engineering, using a concrete quality detection device for engineering as described above, including the following steps:

[0014] Step 1: Measure the initial data of the concrete sample. Place the concrete sample on the placing plate, make the baffles of the measuring component contact the two sides of the concrete material, and read the relevant data of the concrete sample through the scale plate. At this time, the measuring component completes the measurement of the data of the concrete sample in the initial state. Then the measuring component moves away from the concrete sample to prepare for the subsequent pressure test;

[0015] Step 2: Conduct a pressure test. Drive the pressure adjustment component to descend through the hydraulic rod so that the pressing frame contacts the upper part of the concrete sample. During the pressure test, the pressure sensor detects the pressure conditions on both sides above the concrete sample. When it detects that the pressures on both sides are unbalanced, control the pressing plate to press down to adjust the pressure and ensure the accuracy of the test. Continuously conduct the pressure test until the test requirements are met.

[0016] Step 3: Measure the data after the pressure test. After the pressure test is completed, the measuring component approaches and contacts the concrete sample again to measure the data of the concrete sample after the pressure test and obtain the relevant data change situation after being stressed, so as to evaluate the concrete quality later.

[0017] As can be seen from the above, an engineering concrete quality detection device provided by the present invention can flexibly adjust the output pressure according to the specific situation of pressure imbalance, adapt to the pressure test requirements of different concrete samples, achieve precise adjustment of pressure, and ensure the accuracy of the test results. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of an engineering concrete quality detection device proposed by the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the extension frame of an engineering concrete quality detection device proposed by the present invention;

[0020] Figure 3 It is a schematic diagram of the structure below the top plate of an engineering concrete quality detection device proposed by the present invention;

[0021] Figure 4 It is a schematic diagram of the structure above the workbench of an engineering concrete quality detection device proposed by the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the measuring component of an engineering concrete quality detection device proposed by the present invention;

[0023] Figure 6 It is a partial structure schematic diagram of the measuring component of an engineering concrete quality detection device proposed by the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the pressure adjustment component of an engineering concrete quality detection device proposed by the present invention;

[0025] Figure 8 It is a partial structure schematic diagram of the pressure adjustment component of an engineering concrete quality detection device proposed by the present invention.

[0026] In the figure: 1, workbench; 2, extension frame; 3, placement plate; 4, elevation column; 5, measurement component; 501, bidirectional motor; 502, bidirectional screw; 503, limit frame; 504, auxiliary round rod; 505, sliding seat; 506, connecting frame; 507, telescopic drive rod; 508, baffle; 509, pulling rope; 510, rotating shaft; 511, drive motor; 512, motor frame; 513, telescopic rod; 514, scale plate; 515, pointer; 6, support frame; 7, top plate; 8, support plate; 9, pressure adjustment component; 901, air pump; 902, annular frame; 903, air pipe; 904, two-way shunt pipe; 905, air delivery pipe; 906, retention pipe; 907, telescopic pipe; 908, fixed frame; 909, tension spring; 910, pressing plate; 911, pressure sensor; 912, connecting pipe; 913, servo motor; 914, seal; 915, rotating rod; 916, rotating plate; 10, hydraulic rod; 11, pressing frame. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] An engineering concrete quality detection device disclosed by the present invention is mainly applied to scenarios where it is difficult to flexibly adjust the output pressure for pressure imbalance conditions, has poor adaptability to the pressure test requirements of different concrete samples, cannot accurately adjust the pressure, and affects the accuracy of test results.

[0029] Refer to Figure 1-8 , an engineering concrete quality detection device, including a workbench 1, an elevation column 4 is fixedly connected to the top end of the workbench 1, a placement frame is fixedly connected to the top end of the elevation column 4, a measurement component 5 is arranged on the workbench 1, and the placement plate 3 is located in the middle of the measurement component 5. A pressure adjustment component 9 is arranged at the top end of the placement plate 3, a support plate 8 is arranged above the pressure adjustment component 9, a hydraulic rod 10 is fixedly connected to the top end of the support plate 8, a pressing frame 11 is arranged below the support plate 8, and the pressure adjustment component 9 is located above the pressing frame 11;

[0030] The pressure adjustment component 9 includes a plurality of pressure sensors 911. A plurality of rectangular holes are formed in the pressing frame 11. The top ends of the pressure sensors 911 are fixedly connected with pressing plates 910, and the outside of the pressing plates 910 is movably connected with both sides inside the rectangular holes;

[0031] The measurement component 5 includes symmetric scale plates 514. Slide holes are formed in the scale plates 514, and symmetric pointers 515 are movably connected inside the slide holes. Baffles 508 are fixedly connected to the opposite sides of the pointers 515.

[0032] Referring to Figure 1 、 Figure 3 、 Figure 7 and Figure 8 , the pressure regulating assembly 9 further includes an air pump 901. An annular frame 902 is fixedly connected to the outside of the air pump 901. The bottom end of the annular frame 902 is fixedly connected to the top end of the pressing frame 11. A tracheal duct 903 is fixedly connected to the front end of the air pump 901. And a plurality of two-way shunt ducts 904 are fixedly connected to the outside of the tracheal duct 903. One ends of the two-way shunt ducts 904 far from the tracheal duct 903 are fixedly connected to connecting pipes 912. One ends of the connecting pipes 912 far from the two-way shunt ducts 904 are fixedly connected to air delivery pipes 905. The bottom ends of the plurality of air delivery pipes 905 are fixedly connected to retaining pipes 906. The bottom ends of the retaining pipes 906 are fixedly connected to the top ends of the telescopic rods 513. Fixing frames 908 are fixedly connected to the outside of the retaining pipes 906. Telescopic tubes 907 are fixedly connected to the top ends of the pressing plates 910. The bottom ends of the fixing frames 908 are fixedly connected to the top ends of the telescopic tubes 907. And tension springs 909 are fixedly connected to the bottom ends of the retaining pipes 906. The bottom ends of the tension springs 909 are fixedly connected to the top ends of the pressing plates 910. The tension springs 909 are all located inside the telescopic tubes 907. Seals 914 are fixedly connected to the upper sides of the outside of the plurality of connecting pipes 912. Circular holes are formed in the seals 914 and the connecting pipes 912. Servo motors 913 are fixedly connected to the upper sides of the seals 914. The power output shafts of the servo motors 913 are connected to rotating rods 915 through couplings. The rotating rods 915 are movably connected between the circular holes. Rotating plates 916 are fixedly connected to the outside of the rotating rods 915. The outside of the rotating plates 916 is in contact with the inside of the connecting pipes 912.

[0033] Specifically, during the pressure test, the concrete sample is placed on the placement plate 3. The hydraulic rod 10 drives the pressure adjustment component 9 to descend, making the pressing frame 11 contact the upper part of the sample. The pressure sensor 911 is in place, and the test begins. The sensor detects the pressure on both sides of the sample in real time, converts the data into an electrical signal and transmits it to the control system. When the system determines that the pressures on both sides are unbalanced, it triggers the adjustment operation of the pressing plate 910. The air pump 901 starts, and the compressed air is sent into the retaining pipe 906 through the air pipe 903, the two-way shunt pipe 904, the connecting pipe 912, and the air delivery pipe 905. Under the elongation of the telescopic pipe 907 and the stretching of the tension spring 909, the pressing plate 910 moves downward to adjust the pressures on both sides. During the downward pressing process, the servo motor 913 starts as needed, drives the rotating plate 916 to rotate in the connecting pipe 912 through the rotating rod 915, adjusts the gas flow rate and pressure distribution, and precisely controls the downward pressing degree of the pressing plate 910. During this period, the pressure sensor 911 continuously feeds back the pressure changes, and the control system adjusts the output pressure of the air pump 901 and the rotation angle of the servo motor 913 accordingly until the pressures on both sides are balanced and the adjustment is completed.

[0034] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , one side of the workbench 1 is fixedly connected with an extension frame 2, the top of the workbench 1 is fixedly connected with a plurality of support frames 6, and both the measuring component 5 and the pressure adjustment component 9 are located among the plurality of support frames 6. The tops of the support frames 6 are all fixedly connected with a top plate 7, and a fixed connection is provided between the bottom end of the top plate 7 and the top end of the hydraulic rod 10.

[0035] Refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6, the measuring assembly 5 further includes a bidirectional motor 501. The bottom end of the bidirectional motor 501 is fixedly connected to the top end of the extension frame 2. Symmetric limiting frames 503 are provided at the front end of the bidirectional motor 501, and the top ends of the limiting frames 503 are fixedly connected to both the workbench 1 and the top end of the extension frame 2. A plurality of auxiliary round rods 504 are fixedly connected to both inner ends of the limiting frame 503. The power output shaft of the bidirectional motor 501 is connected to a bidirectional screw rod 502 through a coupling. The outer ends of the bidirectional screw rod 502 are movably connected to the inner sides of the limiting frames 503 close to the bidirectional motor 501. Two symmetric sliding seats 505 are movably connected to the outer sides of both the bidirectional screw rod 502 and the auxiliary round rods 504. Connecting frames 506 are fixedly connected to the top ends of the symmetric sliding seats 505. Telescopic drive rods 507 are fixedly connected to one side of the top ends of the connecting frames 506 close to the bidirectional motor 501, and the front ends of the telescopic drive rods 507 are fixedly connected to one ends of the symmetric baffles 508 close to the bidirectional motor 501. Chute holes are provided on the connecting frames 506, and the baffles 508 are movably connected between the inner parts of the chute holes. Pulling ropes 509 are fixedly connected to the symmetric baffles 508 far from the bidirectional motor 501. One ends of the two pulling ropes 509 are movably connected to rotating shafts 510. Driving motors 511 are connected to the sides of the rotating shafts 510 close to the bidirectional motor 501 through couplings. Motor frames 512 are fixedly connected to one sides of the driving motors 511, and the bottom ends of the motor frames 512 are fixedly connected to one sides of the connecting frames 506. Telescopic rods 513 are fixedly connected to the inner parts of one sides of the connecting frames 506. The telescopic rods 513 are located directly below the motor frames 512, and the front ends of the telescopic rods 513 are fixedly connected to one ends of the baffles 508 close to the driving motors 511. The opposite sides of the connecting frames 506 are fixedly connected to one sides of the scale plates 514.

[0036] Specifically, after the concrete sample is placed on the placement plate 3, the measuring assembly 5 starts to measure. The bidirectional motor 501 drives the bidirectional screw rod 502 to rotate, causing the symmetric sliding seats 505 to move towards each other along the bidirectional screw rod 502 and the auxiliary round rods 504. The connecting frame 506 then pushes the baffle 508 on the side close to the bidirectional motor 501 towards the sample. At the same time, the driving motor 511 drives the rotating shaft 510 to wind up the rope, pulling the baffle 508 on the other side towards the sample. After the two baffles 508 contact the sample, the motor stops, and the data on the scale plate 514 is read to complete the initial measurement. After the measurement is completed, the bidirectional motor 501 and the driving motor 511 reverse, and the sliding seats 505 and the baffles 508 move away from the sample to make room for the pressure test. After the pressure test is completed, the bidirectional motor 501 rotates forward again, repeating the above steps. The two baffles 508 contact the sample again, and the scale of the pointer 515 is read to obtain the data after the test, which is used to evaluate the performance of the sample.

[0037] A method for using a device for detecting the quality of engineering concrete. Using a device for detecting the quality of engineering concrete as described above, it includes the following steps:

[0038] Step 1: Measure the initial data of the concrete sample. Place the concrete sample on the placement plate 3, make the baffle 508 of the measuring component 5 contact both sides of the concrete material, and read the relevant data of the concrete sample through the scale plate 514. At this time, the measuring component 5 completes the measurement of the data of the concrete sample in its initial state. Then, the measuring component 5 moves away from the concrete sample to prepare for the subsequent pressure test.

[0039] Step 2: Conduct a pressure test. Drive the pressure adjustment component 9 to descend through the hydraulic rod 10, so that the pressing frame 11 contacts the upper part of the concrete sample. During the pressure test, the pressure sensor 911 detects the pressure conditions on both sides above the concrete sample. When it detects that the pressures on both sides are unbalanced, control the pressing plate 910 to press down to adjust the pressure and ensure the accuracy of the test. Continuously conduct the pressure test until the test requirements are met.

[0040] Step 3: Measure the data after the pressure test. After the pressure test is completed, the measuring component 5 approaches and contacts the concrete sample again to measure the data of the concrete sample after the pressure test and obtain the relevant data change conditions after it is stressed, so as to evaluate the quality of the concrete subsequently.

[0041] As mentioned above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A concrete quality detection device for engineering use, including a workbench (1), characterized in that, A lifting column (4) is fixedly connected to the top end of the workbench (1). A placement rack is fixedly connected to the top end of the lifting column (4). A measuring assembly (5) is arranged on the workbench (1), and the placement plate (3) is located in the middle of the measuring assembly (5). A pressure adjusting assembly (9) is arranged on the top end of the placement plate (3). A support plate (8) is arranged above the pressure adjusting assembly (9). A hydraulic rod (10) is fixedly connected to the top end of the support plate (8). A pressing frame (11) is arranged below the support plate (8). The pressure adjusting assembly (9) is located above the pressing frame (11). The pressure adjusting assembly (9) includes a plurality of pressure sensors (911). A plurality of rectangular holes are formed in the pressing frame (11). Pressing plates (910) are fixedly connected to the top ends of the pressure sensors (911), and the outer sides of the pressing plates (910) are movably connected to both sides inside the rectangular holes. The measuring assembly (5) includes symmetric scale plates (514). Slide holes are formed in the scale plates (514), and symmetric pointers (515) are movably connected inside the slide holes. Baffles (508) are fixedly connected to the opposite sides of the pointers (515).

2. The quality inspection device for engineering concrete according to claim 1, characterized in that, The pressure adjusting assembly (9) further includes an air pump (901). An annular frame (902) is fixedly connected to the outer side of the air pump (901). The annular frame (902) is fixedly connected to the top end of the pressing frame (11). An air pipe (903) is fixedly connected to the front end of the air pump (901), and a plurality of two-way shunt pipes (904) are fixedly connected to the outer side of the air pipe (903). The ends of the two-way shunt pipes (904) far away from the air pipe (903) are fixedly connected to connecting pipes (912), and the ends of the connecting pipes (912) far away from the two-way shunt pipes (904) are fixedly connected to air delivery pipes (905).

3. An engineering concrete quality detection device according to claim 2, characterized in that, The bottom ends of the plurality of air delivery pipes (905) are fixedly connected to retaining pipes (906). The retaining pipes (906) are fixedly connected to the top ends of the telescopic rods (513). Fixing frames (908) are fixedly connected to the outer sides of the retaining pipes (906). Telescopic pipes (907) are fixedly connected to the top ends of the pressing plates (910). The bottom ends of the fixing frames (908) are fixedly connected to the top ends of the telescopic pipes (907). Tensile springs (909) are fixedly connected to the bottom ends of the retaining pipes (906). The bottom ends of the tensile springs (909) are fixedly connected to the top ends of the pressing plates (910). The tensile springs (909) are all located inside the telescopic pipes (907).

4. An engineering concrete quality detection device according to claim 3, characterized in that, Above the outer sides of the plurality of the connecting pipes (912), sealing members (914) are fixedly connected. Round holes are formed in both the sealing members (914) and the connecting pipes (912). Above the sealing members (914), servo motors (913) are fixedly connected. The power output shafts of the servo motors (913) are connected to rotating rods (915) through couplings. The rotating rods (915) are movably connected between the inner parts of the round holes. On the outer sides of the rotating rods (915), rotating plates (916) are fixedly connected. The outer sides of the rotating plates (916) are in contact with the inner sides of the connecting pipes (912).

5. The engineering concrete quality detection device according to claim 4, characterized in that, On one side of the workbench (1), an extension frame (2) is fixedly connected. On the top end of the workbench (1), a plurality of support frames (6) are fixedly connected. And both the measuring assembly (5) and the pressure regulating assembly (9) are located among the plurality of support frames (6).

6. The engineering concrete quality detection device according to claim 5, characterized in that, On the top ends of the support frames (6), top plates (7) are fixedly connected. And between the bottom end of the top plate (7) and the top end of the hydraulic rod (10), a fixed connection is made.

7. An engineering concrete quality detection device according to claim 6, characterized in that, The measuring assembly (5) further includes a bidirectional motor (501). Between the bottom end of the bidirectional motor (501) and the top end of the extension frame (2), a fixed connection is made. At the front end of the bidirectional motor (501), symmetric limiting frames (503) are provided. And between the top ends of the limiting frames (503) and the workbench (1) and the extension frame (2), fixed connections are made. At both inner ends of the limiting frames (503), a plurality of auxiliary round rods (504) are fixedly connected. The power output shaft of the bidirectional motor (501) is connected to a bidirectional screw rod (502) through a coupling. Between the outer sides of the two ends of the bidirectional screw rod (502) and the inner sides of the limiting frames (503) close to the bidirectional motor (501), movable connections are made.

8. An engineering concrete quality detection device according to claim 7, characterized in that, On the outer sides of both the bidirectional screw rod (502) and the auxiliary round rods (504), two symmetric sliding seats (505) are movably connected. On the top ends of the symmetric sliding seats (505), connecting frames (506) are fixedly connected. On one side of the top ends of the connecting frames (506) close to the bidirectional motor (501), telescopic driving rods (507) are fixedly connected. And between the front ends of the telescopic driving rods (507) and one ends of the symmetric baffles (508) close to the bidirectional motor (501), fixed connections are made. On the connecting frames (506), chute holes are formed. The baffles (508) are movably connected between the inner parts of the chute holes. To the symmetric baffles (508) far from the bidirectional motor (501), pulling ropes (509) are fixedly connected.

9. An engineering concrete quality detection device according to claim 8, characterized in that, One end of each of the two pulling ropes (509) is movably connected to a rotating shaft (510). On the side of the rotating shaft (510) close to the bidirectional motor (501), a driving motor (511) is connected through a coupling. On one side of each driving motor (511), a motor bracket (512) is fixedly connected. And between the bottom end of the motor bracket (512) and one side of the connecting frame (506), a fixed connection is made. Inside one side of each connecting frame (506), a telescopic rod (513) is fixedly connected. The telescopic rod (513) is located directly below the motor bracket (512). Between the front end of the telescopic rod (513) and one end of the baffle (508) close to the driving motor (511), a fixed connection is made. Between the opposite sides of the connecting frame (506) and one side of the scale plate (514), a fixed connection is made.

10. A method for using a device for detecting the quality of engineering concrete, which uses a device for detecting the quality of engineering concrete according to claim 9, characterized in that, Including the following steps: Step 1: Measure the initial data of the concrete sample. Place the concrete sample on the placement plate (3), make the baffle (508) of the measuring component (5) contact both sides of the concrete material, and read the relevant data of the concrete sample through the scale plate (514). At this time, the measuring component (5) completes the measurement of the data of the concrete sample in the initial state. Then, the measuring component (5) moves away from the concrete sample to prepare for the subsequent pressure test. Step 2: Conduct the pressure test. Drive the pressure adjustment component (9) to descend through the hydraulic rod (10) so that the pressing frame (11) contacts the upper part of the concrete sample. During the pressure test, the pressure sensor (911) detects the pressure conditions on both sides above the concrete sample. When it detects that the pressures on both sides are unbalanced, control the pressing plate (910) to press down to adjust the pressure and ensure the accuracy of the test. Continuously conduct the pressure test until the test requirements are met. Step 3: Measure the data after the pressure test. After the pressure test is completed, the measuring component (5) approaches and contacts the concrete sample again to measure the data of the concrete sample after the pressure test and obtain the relevant data changes under stress, so as to evaluate the quality of the concrete subsequently.

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