Pressure testing equipment for concrete test block

Abstract

The utility model discloses pressure testing equipment for a concrete test block, and relates to the technical field of concrete detection. The device comprises a bottom plate, mounting frames are fixedly connected to the two sides of the top of the bottom plate, and a fixing plate is fixedly connected to the tops of the mounting frames. A concrete test block can be preliminarily positioned from the front end and the rear end through the first positioning block and the second positioning block, the second motor drives the second threaded rod to rotate, and the second threaded rod is in threaded connection with the second positioning block, so that the second positioning block can stably move front and back on the positioning table; the position of the second positioning block can be flexibly adjusted according to the length of the concrete test block, accurate positioning of test blocks of different sizes is achieved, the displacement sensor can monitor the displacement change of the test block in the pressed process in real time, the position accuracy of the test block in the testing process is further ensured, and a guarantee is provided for obtaining accurate testing data.

Description

Technical Field

[0001] This utility model belongs to the field of concrete testing technology, and in particular relates to a pressure testing device for concrete test blocks. Background Technology

[0002] In the field of construction engineering, the pressure test of concrete test blocks is a key step in ensuring that the quality of concrete meets the requirements of the project. Accurately measuring the compressive strength of concrete test blocks is essential for evaluating the performance of concrete in actual use and ensuring the safety of building structures.

[0003] Currently, traditional pressure testing equipment often suffers from inaccurate specimen placement, leading to uneven pressure application and affecting the accuracy of test results. Some equipment relies solely on simple grooves or fixing blocks for positioning, which cannot adapt to concrete specimens of different sizes and lacks flexibility. During pressure application, traditional equipment struggles to precisely control the magnitude and speed of pressure. Some equipment uses manual pressurization, which is significantly influenced by human factors, making it difficult to ensure consistent pressure change curves for each test. This results in poor repeatability and reliability of test data. Furthermore, traditional equipment typically lacks the ability to monitor specimen displacement and pressure changes in real time, making it impossible to obtain comprehensive and detailed data on the specimen during the compression process, which is detrimental to in-depth analysis of concrete performance.

[0004] To address these issues, we provide a pressure testing device for concrete test blocks. Utility Model Content

[0005] The purpose of this invention is to provide a pressure testing device for concrete test blocks. Through the cooperation of the testing components and the positioning mechanism, it solves the problem that the existing pressure testing devices do not have the function of real-time monitoring of the displacement and pressure changes of the test blocks, and cannot comprehensively obtain detailed data of the test blocks during the compression process, which is not conducive to in-depth analysis of concrete performance.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a pressure testing device for concrete test blocks, comprising a base plate, mounting brackets fixedly connected to both sides of the top of the base plate, a fixing plate fixedly connected to the top of the mounting brackets, a testing component fixedly connected to the bottom of the fixing plate, a positioning mechanism fixedly connected to the top of the base plate, and a testing component including a mounting plate. The top of the mounting plate is fixedly connected to the fixing plate, a first motor is fixedly connected to one side of the mounting plate, a first threaded rod is fixedly connected to the output end of the first motor, a threaded sleeve is threadedly connected to the surface of the first threaded rod, a sliding table is fixedly connected to the bottom of the threaded sleeve, a slide rail is slidably connected to the inner cavity of the sliding table, both ends of the slide rail are fixedly connected to the mounting plate, and a hydraulic cylinder is fixedly connected to the bottom of the sliding table. A pressure sensor is fixedly connected to the bottom of the pressure sensor, and a pressure block is fixedly connected to the bottom of the pressure sensor. The surface of the first threaded rod is threadedly connected to the threaded sleeve. As the first threaded rod rotates continuously, the threaded sleeve moves smoothly along the axial direction of the first threaded rod under the action of the thread. The bottom of the threaded sleeve is fixedly connected to the sliding table, driving the sliding table to move synchronously. The inner cavity of the sliding table is slidably connected to the slide rail. Both ends of the slide rail are firmly fixed to the mounting plate, so that the sliding table can accurately adjust its height position under the drive of the first motor, providing a stable motion foundation for subsequent pressure application. The pressure block is fixedly connected to the bottom of the pressure sensor to ensure that when pressure is applied to the concrete test block, the pressure can be evenly transmitted to the surface of the test block, avoiding damage to the test block or inaccurate test results due to uneven pressure.

[0008] The present invention is further configured such that the positioning mechanism includes a positioning platform, the bottom of which is fixedly connected to a base plate, a first positioning block is provided at the rear end of the top of the positioning platform, a second positioning block is fixedly connected to the front end of the top of the positioning platform, a second motor is fixedly connected to one side of the surface of the positioning platform, and a second threaded rod is fixedly connected to the output end of the second motor. The surface of the second threaded rod is threadedly connected to the second positioning block. When the second motor is started, the motor drives the second threaded rod to rotate. Since the second positioning block is threadedly connected to the second threaded rod and guided by the sliding rod, the second positioning block can move smoothly back and forth on the positioning platform. The position of the second positioning block can be flexibly adjusted according to concrete test blocks of different sizes to achieve accurate positioning of the test blocks and improve the adaptability of the equipment to test blocks of different specifications.

[0009] The present invention is further configured such that a sliding rod is fixedly connected to one side of the top of the positioning platform, and the surface of the sliding rod is slidably connected to the second positioning block. The sliding rod can limit the second positioning block and ensure the stability of the second positioning block during movement.

[0010] The present invention is further configured such that a mounting groove is provided on the top of the positioning platform, and a displacement sensor is fixedly connected to the inner cavity of the mounting groove. The displacement sensor can monitor the displacement change of the test block in real time during the compression process, providing a strong guarantee for obtaining accurate test data.

[0011] The present invention is further configured such that a limiting plate is fixedly connected to the rear end of the first positioning block, and a limiting hole is provided at the rear end of the top of the positioning platform. The limiting plate is threadedly connected to the limiting hole by a fastener. The position of the first positioning block can be conveniently adjusted by the cooperation of the limiting plate and the limiting hole. When it is necessary to adjust the position of the first positioning block, simply loosen the fastener, move the first positioning block to the appropriate position, and then tighten the fastener again.

[0012] The present invention is further configured such that a slide groove is provided on both sides of the slide rail, and a slider is fixedly connected to both sides of the inner cavity of the sliding table. The side of the slider away from the sliding table extends into the inner cavity of the slide groove. The slide groove and the slider are slidably connected, and the slider can slide smoothly in the slide groove, ensuring the stability and high precision of the sliding table movement.

[0013] The present invention is further configured such that a protective pad is fixedly connected to one side of the first positioning block and one side of the second positioning block. The protective pad is made of rubber. Rubber has good elasticity and cushioning performance. When positioning the test block, the protective pad can play a cushioning role and effectively prevent the surface of the test block from being damaged due to collision with the positioning block.

[0014] The present invention is further configured such that a controller is fixedly connected to the front end of the top of the base plate. The controller is electrically connected to the first motor, the second motor and the hydraulic cylinder respectively through wires. The controller can control the start and stop of the first motor, the second motor and the hydraulic cylinder, thereby achieving the purpose of convenient operation.

[0015] The present invention has the following beneficial effects.

[0016] This invention uses a first positioning block and a second positioning block to initially position the concrete test block from both the front and rear ends. A second motor drives a second threaded rod to rotate. Since the second threaded rod is threadedly connected to the second positioning block, the second positioning block can move smoothly back and forth on the positioning platform. The position of the second positioning block can be flexibly adjusted according to the length of the concrete test block to achieve precise positioning of test blocks of different sizes. The displacement sensor can monitor the displacement change of the test block in real time during the compression process, further ensuring the accuracy of the test block's position during the test and providing a guarantee for obtaining accurate test data.

[0017] This invention uses a pressure sensor to monitor the pressure in real time and feeds the data back to the controller. The controller then precisely controls the rotation speed of the first motor, thereby accurately adjusting the descent speed of the sliding table and achieving precise control of the pressure application speed. At the same time, based on the data fed back by the pressure sensor, the controller can adjust the pressure output of the hydraulic cylinder in real time to ensure the accuracy and stability of pressure application and improve the reliability and repeatability of test data. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a pressure testing device for concrete test blocks.

[0020] Figure 2 This is a three-dimensional view of a test component in a pressure testing device for concrete test blocks.

[0021] Figure 3 This is a three-dimensional view of the connection structure between the slide and the slider in a pressure testing device for concrete test blocks.

[0022] Figure 4 This is a three-dimensional view of the positioning mechanism in a pressure testing device for concrete test blocks.

[0023] Figure 5 This is a three-dimensional view of the first positioning block in a pressure testing device for concrete test blocks.

[0024] In the attached diagram: 1. Base plate; 2. Mounting bracket; 3. Fixing plate; 4. Test assembly; 401. Mounting plate; 402. First motor; 403. First threaded rod; 404. Threaded sleeve; 405. Sliding table; 406. Slide rail; 407. Hydraulic cylinder; 408. Pressure sensor; 409. Pressure block; 5. Positioning mechanism; 501. Positioning stage; 502. First positioning block; 503. Second positioning block; 504. Second motor; 505. Second threaded rod; 6. Slide rod; 7. Mounting groove; 8. Displacement sensor; 9. Limiting plate; 10. Slide groove; 11. Slider; 12. Controller. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1, please refer to Figure 1-5This utility model is a pressure testing device for concrete test blocks, including a base plate 1. Mounting brackets 2 are fixedly connected to both sides of the top of the base plate 1. A fixing plate 3 is fixedly connected to the top of the mounting brackets 2. A testing component 4 is fixedly connected to the bottom of the fixing plate 3. A positioning mechanism 5 is fixedly connected to the top of the base plate 1. The testing component 4 includes a mounting plate 401. The top of the mounting plate 401 is fixedly connected to the fixing plate 3. A first motor 402 is fixedly connected to one side of the mounting plate 401. A first threaded rod 403 is fixedly connected to the output end of the first motor 402. A threaded sleeve 404 is threadedly connected to the surface of the first threaded rod 403. A sliding table 405 is fixedly connected to the bottom of the threaded sleeve 404. A slide rail 406 is slidably connected to the inner cavity of the sliding table 405. Both ends of the slide rail 406 are fixedly connected to the mounting plate 401. A hydraulic cylinder 407 is fixedly connected to the bottom of the sliding table 405. A pressure sensor 408 is fixedly connected to the bottom of the hydraulic cylinder 407. A pressure block 409 is fixedly connected to the bottom of the pressure sensor 408.

[0027] Specifically: The surface of the first threaded rod 403 is threadedly connected to the threaded sleeve 404. As the first threaded rod 403 continues to rotate, the threaded sleeve 404 moves smoothly along the axial direction of the first threaded rod 403 under the action of the thread. The bottom of the threaded sleeve 404 is fixedly connected to the sliding table 405, driving the sliding table 405 to move synchronously. The inner cavity of the sliding table 405 is slidably connected to the slide rail 406. Both ends of the slide rail 406 are firmly fixed on the mounting plate 401, so that the sliding table 405 can accurately adjust its height position under the drive of the first motor 402, providing a stable motion basis for subsequent pressure application. The bottom of the pressure sensor 408 is fixedly connected to a pressure block 409 to ensure that when pressure is applied to the concrete test block, the pressure can be evenly transmitted to the surface of the test block, avoiding damage to the test block or inaccurate test results due to uneven pressure.

[0028] Example 2, please refer to Figure 1-5Based on Embodiment 1, the positioning mechanism 5 includes a positioning platform 501. The bottom of the positioning platform 501 is fixedly connected to the base plate 1. A first positioning block 502 is provided at the rear end of the top of the positioning platform 501. A second positioning block 503 is fixedly connected to the front end of the top of the positioning platform 501. A second motor 504 is fixedly connected to one side of the surface of the positioning platform 501. A second threaded rod 505 is fixedly connected to the output end of the second motor 504. The surface of the second threaded rod 505 is threadedly connected to the second positioning block 503. A slide rod 6 is fixedly connected to one side of the top of the positioning platform 501. The surface of the slide rod 6 is slidably connected to the second positioning block 503. An installation groove 7 is provided on the top of the positioning platform 501. A displacement sensor 8 is fixedly connected to the inner cavity of the installation groove 7. The rear end of the first positioning block 502 is fixedly connected to a limiting plate 9. The rear end of the top of the positioning platform 501 is provided with a limiting hole. The limiting plate 9 is threadedly connected to the limiting hole by fasteners. Both sides of the slide rail 406 are provided with slide grooves 10. Both sides of the inner cavity of the sliding platform 405 are fixedly connected to sliders 11. The side of the slider 11 away from the sliding platform 405 extends into the inner cavity of the slide groove 10. The slide groove 10 and the slider 11 are slidably connected. One side of the first positioning block 502 and one side of the second positioning block 503 are fixedly connected to protective pads. The protective pads are made of rubber. The front end of the top of the base plate 1 is fixedly connected to a controller 12. The controller 12 is electrically connected to the first motor 402, the second motor 504 and the hydraulic cylinder 407 respectively through wires.

[0029] Specifically: When the second motor 504 starts, it drives the second threaded rod 505 to rotate. Since the second positioning block 503 is threadedly connected to the second threaded rod 505 and guided by the slide rod 6, the second positioning block 503 can move smoothly back and forth on the positioning platform 501. The position of the second positioning block 503 can be flexibly adjusted according to concrete test blocks of different sizes, achieving precise positioning of the test blocks and improving the equipment's adaptability to test blocks of different specifications. The slide rod 6 can limit the movement of the second positioning block 503, ensuring its stability during movement. The displacement sensor 8 can monitor the displacement changes of the test block under pressure in real time, providing a strong guarantee for obtaining accurate test data. The position of the first positioning block 502 can be easily adjusted by the cooperation of the limiting plate 9 and the limiting hole. When it is necessary to adjust the position of the first positioning block 502, simply loosen the fastener, move the first positioning block 502 to the appropriate position, and then tighten the fastener. The slider 11 can slide smoothly in the slide groove 10, ensuring the stability and high precision of the movement of the sliding table 405. The protective pad is made of rubber, which has good elasticity and cushioning performance. When positioning the test block, the protective pad can play a cushioning role and effectively prevent the surface of the test block from being damaged due to collision with the positioning block. The controller 12 can control the start and stop of the first motor 402, the second motor 504 and the hydraulic cylinder 407, thereby achieving the purpose of convenient operation.

[0030] The working principle of this utility model is as follows: After adjusting the installation position of the first positioning block 502 by fasteners, the test block is placed above the positioning platform 501. The controller 12 starts the second motor 504, which drives the second threaded rod 505 to rotate. The second threaded rod 505 drives the second positioning block 503 to move. Due to the limiting effect of the slide rod 6, the second positioning block 503 achieves horizontal movement and cooperates with the first positioning block 502 to clamp and position the test block.

[0031] The controller 12 starts the first motor 402, which drives the first threaded rod 403 to rotate. The first threaded rod 403 drives the threaded sleeve 404 to move, the threaded sleeve 404 drives the sliding table 405 to move, the sliding table 405 drives the hydraulic cylinder 407 to move, and the hydraulic cylinder 407 drives the pressure sensor 408 and the pressure block 409 to move horizontally to adjust the test position for convenient and flexible adjustment. The hydraulic cylinder 407 drives the pressure sensor 408 to descend, and the pressure sensor 408 drives the pressure block 409 to descend, applying pressure to the test block through the pressure block 409. The pressure sensor 408 monitors the loading pressure, and the displacement sensor 8 detects whether displacement has occurred, thus completing the pressure test process.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to specific implementation methods. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A pressure testing apparatus for concrete test blocks comprising a base plate (1) characterised in that: Mounting brackets (2) are fixedly connected to both sides of the top of the base plate (1). A fixing plate (3) is fixedly connected to the top of the mounting bracket (2). A test component (4) is fixedly connected to the bottom of the fixing plate (3). A positioning mechanism (5) is fixedly connected to the top of the base plate (1). The test assembly (4) includes a mounting plate (401), the top of which is fixedly connected to a fixing plate (3). A first motor (402) is fixedly connected to one side of the mounting plate (401). A first threaded rod (403) is fixedly connected to the output end of the first motor (402). A threaded sleeve (404) is threadedly connected to the surface of the first threaded rod (403). A sliding table (405) is fixedly connected to the bottom of the threaded sleeve (404). A slide rail (406) is slidably connected to the inner cavity of the sliding table (405). Both ends of the slide rail (406) are fixedly connected to the mounting plate (401). A hydraulic cylinder (407) is fixedly connected to the bottom of the sliding table (405). A pressure sensor (408) is fixedly connected to the bottom of the hydraulic cylinder (407). A pressure block (409) is fixedly connected to the bottom of the pressure sensor (408).

2. A pressure testing apparatus for concrete test blocks as claimed in claim 1 wherein: The positioning mechanism (5) includes a positioning platform (501), the bottom of which is fixedly connected to the base plate (1). A first positioning block (502) is provided at the rear end of the top of the positioning platform (501), and a second positioning block (503) is fixedly connected to the front end of the top of the positioning platform (501). A second motor (504) is fixedly connected to one side of the surface of the positioning platform (501), and a second threaded rod (505) is fixedly connected to the output end of the second motor (504). The surface of the second threaded rod (505) is threadedly connected to the second positioning block (503).

3. A pressure testing apparatus for concrete test blocks as claimed in claim 2 wherein: A slide rod (6) is fixedly connected to one side of the top of the positioning platform (501), and the surface of the slide rod (6) is slidably connected to the second positioning block (503).

4. The pressure testing apparatus for concrete test blocks of claim 2, wherein: The top of the positioning platform (501) is provided with a mounting groove (7), and a displacement sensor (8) is fixedly connected to the inner cavity of the mounting groove (7).

5. The pressure testing apparatus for concrete test blocks of claim 2, wherein: The rear end of the first positioning block (502) is fixedly connected to a limiting plate (9), and a limiting hole is opened at the rear end of the top of the positioning platform (501). The limiting plate (9) is threadedly connected to the limiting hole by a fastener.

6. The pressure testing apparatus for concrete test blocks of claim 1, wherein: The slide rail (406) has a slide groove (10) on both sides, and a slider (11) is fixedly connected to both sides of the inner cavity of the slide table (405). The side of the slider (11) away from the slide table (405) extends into the inner cavity of the slide groove (10), and the slide groove (10) and the slider (11) are slidably connected.

7. The pressure testing apparatus for concrete test blocks of claim 2, wherein: Protective pads are fixedly connected to one side of the first positioning block (502) and one side of the second positioning block (503), and the protective pads are made of rubber.

8. The pressure testing apparatus for concrete test blocks of claim 2, wherein: A controller (12) is fixedly connected to the front end of the top of the base plate (1). The controller (12) is electrically connected to the first motor (402), the second motor (504) and the hydraulic cylinder (407) respectively through wires.

Images