Engineering concrete quality detection device and method

Abstract

The application belongs to the technical field of concrete quality detection, and particularly relates to a concrete quality detection device and method for engineering, which can flexibly regulate and control output pressure according to the specific situation of pressure imbalance, and adapt to the pressure test requirements of different concrete samples to realize accurate regulation of pressure and ensure the accuracy of test results.

Description

Technical Field

[0001] This invention relates to the field of concrete quality testing technology, and in particular to a concrete quality testing device and method for engineering applications. Background Technology

[0002] A concrete quality testing device for engineering is a device used to test the quality of concrete. It typically consists of multiple components and is designed to evaluate the quality and performance of concrete through different testing methods and techniques. It obtains the initial maximum bearing pressure by applying pressure, thereby testing the quality of the concrete block.

[0003] It is difficult to flexibly adjust the output pressure in response to actual pressure imbalances. It lacks adaptability to the pressure testing needs of different concrete samples and cannot achieve precise pressure adjustment, which seriously affects the accuracy of test results. Summary of the Invention

[0004] This invention discloses a concrete quality testing device and method for engineering applications, aiming to solve the technical problems in the prior art, such as difficulty in flexibly adjusting the output pressure to address pressure imbalances, poor adaptability to pressure testing requirements of different concrete samples, inability to accurately adjust pressure, and impact on the accuracy of test results.

[0005] The present invention proposes a concrete quality testing device for engineering applications, comprising a workbench, a lifting column fixedly connected to the top of the workbench, a placement frame fixedly connected to the top of the lifting column, a measuring component set on the workbench, a placement plate located in the middle of the measuring component, a pressure regulating component set at the top of the placement plate, a support plate set above the pressure regulating component, a hydraulic rod fixedly connected to the top of the support plate, a pressing frame set below the support plate, and the pressure regulating component located above the pressing frame.

[0006] The pressure regulating assembly includes multiple pressure sensors, and multiple rectangular holes are provided on the pressure frame. Each pressure sensor has a pressure plate fixedly connected to its top, and the outer side of the pressure plate is movably connected to the inner sides of the rectangular holes.

[0007] The measuring component includes symmetrical scale plates, each with a sliding hole, and symmetrical pointers are movably connected inside each sliding hole. A baffle is fixedly connected to the opposite side of each pointer.

[0008] In a preferred embodiment, the pressure regulating assembly further includes an air pump. An annular frame is fixedly connected to the outer side of the air pump, with the bottom end of the annular frame fixedly connected to the top end of the pressing frame. An air pipe is fixedly connected to the front end of the air pump, and multiple bidirectional diversion pipes are fixedly connected to the outer side of the air pipe. A connecting pipe is fixedly connected to the end of each bidirectional diversion pipe away from the air pipe, and an air supply pipe is fixedly connected to the end of each connecting pipe away from the bidirectional diversion pipe. A retaining pipe is fixedly connected to the bottom end of each of the multiple air supply pipes, with the bottom end of the retaining pipe fixedly connected to the top end of the telescopic rod. A fixing frame is fixedly connected to the outer side of each retaining pipe, and the top end of the pressing plate is fixedly... The system is connected to a telescopic tube. The bottom end of the fixed frame is fixedly connected to the top end of the telescopic tube, and the bottom end of the fixed tube is fixedly connected to a tension spring. The bottom end of the tension spring is fixedly connected to the top end of the pressure plate. The tension springs are all located inside the telescopic tube. A sealing element is fixedly connected to the upper outer side of each of the multiple connecting tubes. A circular hole is opened on both the sealing element and the connecting tube. A servo motor is fixedly connected above the sealing element. The power output shaft of the servo motor is connected to a rotating rod through a coupling. The rotating rods are movably connected inside the circular holes. A rotating plate is fixedly connected to the outer side of each rotating rod. The outer side of the rotating plate is in contact with the inner side of the connecting tube.

[0009] Equipped with a pressure regulating component, during pressure testing, a concrete sample is placed on a placement plate. A hydraulic rod lowers the pressure regulating component, bringing the pressure plate into contact with the top of the concrete sample. At this point, the pressure sensor is in place, ready to detect the pressure on both sides of the top of the concrete sample. The pressure test begins, and the pressure sensor continuously monitors the pressure on both sides of the top of the concrete sample. The sensor converts the detected pressure data into electrical signals and transmits them to the control system for analysis and comparison. When the control system detects an imbalance in pressure on both sides of the top of the concrete sample, it triggers an adjustment operation on the pressure plate. First, the air pump starts, delivering compressed air through air pipes to multiple bidirectional diversion pipes. After being diverted through the bidirectional diversion pipes, the compressed air enters the air supply pipe through a connecting pipe and is then transmitted to the stationary pipe. The compressed air entering the stationary pipe, as the telescopic pipe extends and the tension spring stretches, moves the pressure plate downwards within the rectangular hole, applying additional pressure to the concrete sample to adjust the pressure on both sides. To balance the lateral pressure, during the pressing process of the pressure plate, a servo motor can be activated according to specific pressure adjustment requirements. The servo motor drives a rotating rod to rotate via a coupling, and the rotating plate on the rotating rod rotates accordingly inside the connecting pipe. The rotation of the rotating plate can adjust the flow rate and pressure distribution of the gas inside the connecting pipe, further precisely controlling the pressing degree and pressure adjustment effect of the pressure plate, ensuring that the pressure on both sides of the concrete sample reaches a balanced state. During the pressure adjustment process, the pressure sensor continuously monitors the pressure changes on both sides of the concrete sample and feeds the data back to the control system. Based on the real-time pressure data, the control system continuously adjusts parameters such as the output pressure of the air pump and the rotation angle of the servo motor until the pressure on both sides of the concrete sample reaches a balance, completing the pressure adjustment process. During the process, the output pressure can be flexibly adjusted according to the specific situation of pressure imbalance to adapt to the pressure testing requirements of different concrete samples, achieving precise pressure adjustment and ensuring the accuracy of test results.

[0010] In a preferred embodiment, an extension frame is fixedly connected to one side of the workbench, and multiple support frames are fixedly connected to the top of the workbench. The measuring component and the pressure regulating component are both located in the middle of the multiple support frames. A top plate is fixedly connected to the top of each support frame, and the bottom end of the top plate is fixedly connected to the top end of the hydraulic rod.

[0011] In a preferred embodiment, the measuring assembly further includes a bidirectional motor, the bottom of which is fixedly connected to the top of the extension frame. A symmetrical limiting frame is provided at the front end of the bidirectional motor, and the top of the limiting frame is fixedly connected to both the worktable and the top of the extension frame. Multiple auxiliary round rods are fixedly connected to both ends of the inner side of the limiting frame. The power output shaft of the bidirectional motor is connected to a bidirectional screw via a coupling. The outer ends of the bidirectional screw are movably connected to the inner side of the limiting frame near the bidirectional motor. Two symmetrical sliding seats are movably connected to the outer sides of both the bidirectional screw and the auxiliary round rods. A connecting frame is fixedly connected to the top of each symmetrical sliding seat. A telescopic drive rod is fixedly connected to the top of each connecting frame near the bidirectional motor. The front end of the connector is fixedly connected to one end of the symmetrical baffle near the bidirectional motor. The connector has a sliding groove hole, and the baffles are movably connected inside the sliding groove hole. The symmetrical baffle away from the bidirectional motor is fixedly connected to two pulling ropes. One end of each pulling rope is movably connected to a rotating shaft. The side of the rotating shaft near the bidirectional motor is connected to a drive motor via a coupling. One side of the drive motor is fixedly connected to a motor frame, and the bottom end of the motor frame is fixedly connected to one side of the connector. A telescopic rod is fixedly connected inside one side of the connector. The telescopic rod is located directly below the motor frame. The front end of the telescopic rod is fixedly connected to the end of the baffle near the drive motor. The opposite side of the connector is fixedly connected to one side of the scale plate.

[0012] After the concrete sample is placed on the placement plate using the measuring component, the bidirectional motor starts, driving the bidirectional screw to rotate. Because the threads at both ends of the bidirectional screw are in opposite directions, during rotation, two symmetrical sliding seats move towards each other along the bidirectional screw and auxiliary rod, bringing the baffle closer to the concrete sample. The auxiliary rod guides and stabilizes the movement of the sliding seats. As the sliding seats move, the connecting frame also moves. The telescopic drive rod on the connecting frame pushes the baffle closer to the bidirectional motor towards the concrete sample. Simultaneously, the drive motor starts, driving the rotating shaft to rotate. The rotating shaft rewinds and pulls the rope, pulling the baffle away from the bidirectional motor towards the concrete sample. When both baffles contact the sides of the concrete material, the bidirectional motor and drive motor stop operating. At this point, 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... Reversing the motor causes the sliding seat to move in opposite directions, moving the connecting frame accordingly. The telescopic drive rod pulls the baffle on the side closest to the bidirectional motor away from the concrete sample. Simultaneously, the drive motor reverses, and the rotating shaft releases the pulling rope. The baffle on the side away from the bidirectional motor, under the action of the telescopic rod (which provides some support and reset), also moves away from the concrete sample, making space for the pressure test. After the pressure test, the bidirectional motor rotates forward again, repeating the steps of the initial measurement phase, so that the baffles on both sides contact the sides of the concrete sample again. At this time, the position of the pointer in the sliding hole will change due to the changes in the concrete sample after the pressure test. By reading the pointer position on the scale again, the relevant data of the concrete sample after the pressure test can be obtained, which can be used to evaluate and analyze the performance of the concrete sample. Measurements can be taken before and after the pressure test, facilitating direct data comparison and intuitively reflecting the changes in the concrete sample under pressure, which helps to evaluate its performance.

[0013] A method for using an engineering concrete quality testing device, comprising the following steps:

[0014] Step 1: Measure the initial data of the concrete sample. Place the concrete sample on the placement plate so that the baffle of the measuring component is in contact with both sides of the concrete material. Read the relevant data of the concrete sample through the scale plate. At this time, the measuring component has completed the measurement of the data of the concrete sample in the initial state. After that, the measuring component moves away from the concrete sample to prepare for the subsequent pressure test.

[0015] Step 2: Conduct a pressure test. The pressure adjustment component is lowered by the hydraulic rod so that the pressure frame contacts the top of the concrete sample. During the pressure test, the pressure sensor detects the pressure on both sides of the top of the concrete sample. When an imbalance in pressure is detected on both sides, the pressure plate is controlled to press down to adjust the pressure and ensure the accuracy of the test. The pressure test is continued 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 changes after being subjected to stress, so as to evaluate the quality of the concrete in the future.

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

[0018] Figure 1 This is a schematic diagram of the overall structure of a concrete quality testing device for engineering applications proposed in this invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the extension frame of an engineering concrete quality testing device proposed in this invention.

[0020] Figure 3 This is a schematic diagram of the structure below the top plate of an engineering concrete quality testing device proposed in this invention;

[0021] Figure 4 This is a schematic diagram of the structure above the workbench of an engineering concrete quality testing device proposed in this invention.

[0022] Figure 5 This is a schematic diagram of the measuring component structure of an engineering concrete quality testing device proposed in this invention.

[0023] Figure 6 This is a schematic diagram of the measuring component of an engineering concrete quality testing device proposed in this invention.

[0024] Figure 7 This is a schematic diagram of the pressure regulating component of an engineering concrete quality testing device proposed in this invention.

[0025] Figure 8 This is a schematic diagram of the pressure regulating component of an engineering concrete quality testing device proposed in this invention.

[0026] In the diagram: 1. Workbench; 2. Extension frame; 3. Placement plate; 4. Lifting column; 5. Measuring assembly; 501. Bidirectional motor; 502. Bidirectional screw; 503. Limiting 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 regulating assembly; 901. Air pump; 902. Ring frame; 903. Air pipe; 904. Two-way diversion pipe; 905. Air supply pipe; 906. Fixing pipe; 907. Telescopic pipe; 908. Fixing 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

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] The concrete quality testing device disclosed in this invention is mainly used in scenarios where it is difficult to flexibly adjust the output pressure to address pressure imbalances, where the device is not adaptable to the pressure testing requirements of different concrete samples, and where the pressure cannot be precisely adjusted, thus affecting the accuracy of the test results.

[0029] Reference Figure 1-8 A concrete quality testing device for engineering applications includes a workbench 1, a lifting column 4 fixedly connected to the top of the workbench 1, a placement frame fixedly connected to the top of the lifting column 4, a measuring component 5 on the workbench 1, a placement plate 3 located in the middle of the measuring component 5, a pressure regulating component 9 on the top of the placement plate 3, a support plate 8 above the pressure regulating component 9, a hydraulic rod 10 fixedly connected to the top of the support plate 8, a pressing frame 11 below the support plate 8, and the pressure regulating component 9 located above the pressing frame 11.

[0030] The pressure regulating assembly 9 includes multiple pressure sensors 911. Multiple rectangular holes are provided on the pressure frame 11. Each pressure sensor 911 is fixedly connected to a pressure plate 910 at its top end. The outer side of the pressure plate 910 is movably connected to the inner sides of the rectangular holes.

[0031] The measuring component 5 includes symmetrical scale plates 514, each scale plate 514 having a sliding hole, and each sliding hole having a symmetrical pointer 515 movably connected inside, with a baffle 508 fixedly connected to the opposite side of each pointer 515.

[0032] Reference Figure 1 , Figure 3 , Figure 7 and Figure 8 The pressure regulating assembly 9 also 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 pressure frame 11. An air pipe 903 is fixedly connected to the front end of the air pump 901. Multiple bidirectional diversion pipes 904 are fixedly connected to the outside of the air pipe 903. A connecting pipe 912 is fixedly connected to the end of each bidirectional diversion pipe 904 away from the air pipe 903. An air supply pipe 905 is fixedly connected to the end of each connecting pipe 912 away from the bidirectional diversion pipe 904. A retaining pipe 906 is fixedly connected to the bottom end of each of the multiple air supply pipes 905. The bottom end of the retaining pipe 906 is fixedly connected to the top end of the telescopic rod 513. A fixing frame 908 is fixedly connected to the outside of each retaining pipe 906. A telescopic pipe is fixedly connected to the top end of the pressure plate 910. 907, the bottom end of the fixed bracket 908 is fixedly connected to the top end of the telescopic tube 907, and the bottom end of the fixed tube 906 is fixedly connected to the tension spring 909. The bottom end of the tension spring 909 is fixedly connected to the top end of the pressure plate 910. The tension spring 909 is located inside the telescopic tube 907. The upper outer side of the multiple connecting tubes 912 is fixedly connected to the sealing element 914. The sealing element 914 and the connecting tube 912 are provided with round holes. The upper side of the sealing element 914 is fixedly connected to the servo motor 913. The power output shaft of the servo motor 913 is connected to the rotating rod 915 through the coupling. The rotating rod 915 is movably connected inside the round hole. The outer side of the rotating rod 915 is fixedly connected to the rotating plate 916. The outer side of the rotating plate 916 is in contact with the inner side of the connecting tube 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, allowing the pressure frame 11 to contact the top of the sample. The pressure sensor 911 is then in place, and the test begins. The sensor monitors the pressure on both sides of the sample in real time, converting the data into electrical signals and transmitting them to the control system. When the system determines that the pressure on both sides is unbalanced, it triggers the adjustment operation of the pressure plate 910, and the air pump 901 starts, sending compressed air through the air pipe 903, the bidirectional diversion pipe 904, the connecting pipe 912, and the air delivery pipe 905 into the stationary pipe. 906. Under the extension of the telescopic tube 907 and the tension of the tension spring 909, the pressing plate 910 moves down to adjust the pressure on both sides. During the pressing process, the servo motor 913 starts as needed and drives the rotating plate 916 to rotate in the connecting tube 912 through the rotating rod 915, adjusting the gas flow and pressure distribution, and precisely controlling the pressing degree of the pressing plate 910. During this period, the pressure sensor 911 continuously feeds back the pressure change, 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 pressure on both sides is balanced, thus completing the adjustment.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An extension frame 2 is fixedly connected to one side of the workbench 1, and multiple support frames 6 are fixedly connected to the top of the workbench 1. The measuring component 5 and the pressure regulating component 9 are both located in the middle of the multiple support frames 6. A top plate 7 is fixedly connected to the top of each support frame 6, and the bottom end of the top plate 7 is fixedly connected to the top end of the hydraulic rod 10.

[0035] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6The measuring component 5 also 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. A symmetrical limiting frame 503 is provided at the front end of the bidirectional motor 501, and the top end of the limiting frame 503 is fixedly connected to the top end of both the worktable 1 and the extension frame 2. Multiple auxiliary round rods 504 are fixedly connected to both ends of the inner side of the limiting frame 503. The power output shaft of the bidirectional motor 501 is connected to a bidirectional screw 502 through a coupling. The outer ends of the bidirectional screw 502 are movably connected to the inner side of the limiting frame 503 near the bidirectional motor 501. Two symmetrical sliding seats 505 are movably connected to the outer sides of the bidirectional screw 502 and the auxiliary round rods 504. A connecting frame 506 is fixedly connected to the top end of each symmetrical sliding seat 505. A telescopic drive rod 507 is fixedly connected to the top end of the connecting frame 506 near the bidirectional motor 501, and the front end of the telescopic drive rod 507 is connected to the side near the bidirectional motor. The symmetrical baffles 508 of 501 are fixedly connected at one end. The connecting frame 506 has a sliding groove hole. The baffles 508 are movably connected inside the sliding groove hole. The symmetrical baffles 508 away from the bidirectional motor 501 are fixedly connected with a pulling rope 509. One end of each pulling rope 509 is movably connected with a rotating shaft 510. The side of the rotating shaft 510 near the bidirectional motor 501 is connected to a drive motor 511 through a coupling. The side of the drive motor 511 is fixedly connected to a motor frame 512. The bottom end of the motor frame 512 is fixedly connected to one side of the connecting frame 506. The side of the connecting frame 506 is fixedly connected to a telescopic rod 513. The telescopic rod 513 is located directly below the motor frame 512. The front end of the telescopic rod 513 is fixedly connected to the end of the baffle 508 near the drive motor 511. The opposite side of the connecting frame 506 is fixedly connected to one side of the scale plate 514.

[0036] Specifically, after the concrete sample is placed on the placement plate 3, the measuring component 5 starts the measurement. The bidirectional motor 501 drives the bidirectional screw 502 to rotate, causing the symmetrical sliding seat 505 to move towards each other along the bidirectional screw 502 and the auxiliary round rod 504. The connecting frame 506 then pushes the baffle 508 on the side closest to the bidirectional motor 501 closer to the sample. At the same time, the drive motor 511 drives the rotating shaft 510 to wind up the rope, pulling the other baffle 508 closer to the sample. After both baffles 508 contact the sample, the motor stops, the data on the scale plate 514 is read, the initial measurement is completed, and the measurement ends. The bidirectional motor 501 and the drive motor 511 reverse, the sliding seat 505 and the baffle 508 move away from the sample, making room for the pressure test. The pressure test is completed, the bidirectional motor 501 rotates forward again, and the above steps are repeated. The two baffles 508 contact the sample again, the pointer 515 scale is read, and the post-test data is obtained for evaluating the sample performance.

[0037] A method for using an engineering concrete quality testing device, comprising the following steps:

[0038] Step 1: Measure the initial data of the concrete sample. Place the concrete sample on the placement plate 3 so that the baffle 508 of the measuring component 5 contacts both sides of the concrete material. 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. After that, the measuring component 5 moves away from the concrete sample to prepare for the subsequent pressure test.

[0039] Step 2: Conduct a pressure test. The hydraulic rod 10 drives the pressure adjustment component 9 to descend, so that the pressure frame 11 contacts the top of the concrete sample. During the pressure test, the pressure sensor 911 detects the pressure on both sides of the top of the concrete sample. When an imbalance in pressure is detected on both sides, the pressure plate 910 is controlled to press down to adjust the pressure and ensure the accuracy of the test. The pressure test is continued 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 changes after being subjected to force, so as to evaluate the quality of the concrete in the future.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A concrete quality testing device for engineering applications, comprising a workbench (1), characterized in that, The top of the workbench (1) is fixedly connected to a lifting column (4), the top of the lifting column (4) is fixedly connected to a placement frame, a measuring component (5) is provided on the workbench (1), and a placement plate (3) is located in the middle of the measuring component (5). A pressure regulating component (9) is provided at the top of the placement plate (3), a support plate (8) is provided above the pressure regulating component (9), a hydraulic rod (10) is fixedly connected at the top of the support plate (8), a pressing frame (11) is provided below the support plate (8), and the pressure regulating component (9) is located above the pressing frame (11). The pressure regulating assembly (9) includes multiple pressure sensors (911), and multiple rectangular holes are provided on the pressure frame (11). Each pressure sensor (911) is fixedly connected to a pressure plate (910), and the outer side of the pressure plate (910) is movably connected to the inner sides of the rectangular holes. The measuring component (5) includes symmetrical scale plates (514), each scale plate (514) has a sliding hole, and each sliding hole is movably connected to a symmetrical pointer (515), and each pointer (515) is fixedly connected to a baffle (508) on the opposite side. The pressure regulating assembly (9) also 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 pressure frame (11), an air pipe (903) is fixedly connected to the front end of the air pump (901), and multiple bidirectional diversion pipes (904) are fixedly connected to the outside of the air pipe (903). A connecting pipe (912) is fixedly connected to the end of the bidirectional diversion pipe (904) away from the air pipe (903), and an air supply pipe (905) is fixedly connected to the end of the connecting pipe (912) away from the bidirectional diversion pipe (904). Each of the gas supply pipes (905) has a fixed end connected to a retaining pipe (906). The bottom end of the retaining pipe (906) is fixedly connected to the top end of the telescopic rod (513). A fixing bracket (908) is fixedly connected to the outside of the retaining pipe (906). A telescopic pipe (907) is fixedly connected to the top end of the pressing plate (910). The bottom end of the fixing bracket (908) is fixedly connected to the top end of the telescopic pipe (907). A tension spring (909) is fixedly connected to the bottom end of the retaining pipe (906). The bottom end of the tension spring (909) is fixedly connected to the top end of the pressing plate (910). The tension spring (909) is located inside the telescopic pipe (907).

2. The concrete quality testing device for engineering applications according to claim 1, characterized in that, A sealing element (914) is fixedly connected to the upper outer side of each of the multiple connecting pipes (912). A circular hole is opened on both the sealing element (914) and the connecting pipe (912). A servo motor (913) is fixedly connected above the sealing element (914). The power output shaft of the servo motor (913) is connected to a rotating rod (915) through a coupling. The rotating rods (915) are movably connected between the circular holes. A rotating plate (916) is fixedly connected to the outer side of each rotating rod (915). The outer side of the rotating plate (916) is in contact with the inner side of the connecting pipe (912).

3. The concrete quality testing device for engineering applications according to claim 2, characterized in that, An extension frame (2) is fixedly connected to one side of the workbench (1), and multiple support frames (6) are fixedly connected to the top of the workbench (1). The measuring component (5) and the pressure regulating component (9) are both located in the middle of the multiple support frames (6).

4. The concrete quality testing device for engineering applications according to claim 3, characterized in that, The top of each support frame (6) is fixedly connected to a top plate (7), and the bottom of the top plate (7) is fixedly connected to the top of the hydraulic rod (10).

5. The concrete quality testing device for engineering applications according to claim 4, characterized in that, The measuring component (5) also includes a bidirectional motor (501), the bottom end of which is fixedly connected to the top end of the extension frame (2), the front end of which is provided with a symmetrical limiting frame (503), and the top end of the limiting frame (503) is fixedly connected to the top end of the worktable (1) and the extension frame (2), and multiple auxiliary round rods (504) are fixedly connected to both ends of the inner side of the limiting frame (503), the power output shaft of the bidirectional motor (501) is connected to a bidirectional screw (502) through a coupling, and the outer ends of the bidirectional screw (502) are movably connected to the inner side of the limiting frame (503) near the bidirectional motor (501).

6. The concrete quality testing device for engineering applications according to claim 5, characterized in that, The outer sides of the bidirectional screw (502) and the auxiliary round rod (504) are movably connected to two symmetrical sliding seats (505). The top of each symmetrical sliding seat (505) is fixedly connected to a connecting frame (506). The top of each connecting frame (506) is fixedly connected to a telescopic drive rod (507) on the side of the connecting frame (506) near the bidirectional motor (501). The front end of the telescopic drive rod (507) is fixedly connected to one end of a symmetrical baffle (508) near the bidirectional motor (501). The connecting frame (506) has a sliding groove hole. The baffles (508) are movably connected inside the sliding groove hole. The symmetrical baffle (508) away from the bidirectional motor (501) is fixedly connected to a pulling rope (509).

7. The concrete quality testing device for engineering applications according to claim 6, characterized in that, One end of each of the two pulling ropes (509) is movably connected to a rotating shaft (510). The side of the rotating shaft (510) near the bidirectional motor (501) is connected to a drive motor (511) via a coupling. One side of the drive motor (511) is fixedly connected to a motor frame (512). The bottom end of the motor frame (512) is fixedly connected to one side of the connecting frame (506). One side of the connecting frame (506) is fixedly connected to a telescopic rod (513). The telescopic rod (513) is located directly below the motor frame (512). The front end of the telescopic rod (513) is fixedly connected to the end of the baffle (508) near the drive motor (511). The opposite side of the connecting frame (506) is fixedly connected to one side of the scale plate (514).

8. A method of using an engineering concrete quality testing device, comprising using an engineering concrete quality testing device as described in claim 7, characterized in that, Includes the following steps: Step 1: Measure the initial data of the concrete sample. Place the concrete sample on the placement plate (3) so that the baffle (508) of the measuring component (5) contacts both sides of the concrete material. 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. After that, the measuring component (5) moves away from the concrete sample to prepare for the subsequent pressure test. Step 2: Perform a pressure test. The pressure adjustment component (9) is lowered by the hydraulic rod (10) so that the pressure frame (11) contacts the top of the concrete sample. During the pressure test, the pressure sensor (911) detects the pressure on both sides of the top of the concrete sample. When an imbalance in pressure is detected on both sides, the pressure plate (910) is controlled to press down to adjust the pressure and ensure the accuracy of the test. The pressure test is continued 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 after being subjected to force, so as to evaluate the quality of the concrete in the future.

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