A construction sample testing device

Abstract

The present invention relates to the field of sample detection technology, and in particular to a construction sample detection device, including a construction sample detection device, including a base, and also including: a position adjustment component; an environmental adjustment mechanism, the environmental adjustment component including a heating plate fixedly installed below the inside of a sealed box; a pretreatment mechanism, the pretreatment mechanism is installed on one side of the top surface of the base. The present invention uses a heating plate, a vacuum machine, a hydraulic push rod and other devices installed, and uses a vacuum machine to evacuate the inside of the sealed box through an air suction pipe, so that there is no air and dust, water vapor and other substances in the sealed box, which eliminates the influence of these factors on the laser, ensures that the laser energy is more concentratedly focused on the test block, and improves the accuracy of the detection. The test block can be heated by the set heating plate to evaporate the water inside the test block, and the boiling point of the water can be reduced in a vacuum environment, thereby accelerating the evaporation of water and improving efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of building construction sample detection, and in particular to building construction sample detection equipment. Background Art

[0002] Construction sample testing is an important part of ensuring construction quality, mainly including material testing (such as concrete, steel bars, bricks and tiles, asphalt, etc.), construction process testing (such as concrete pouring, steel bar binding, waterproof layer construction, etc.), structure testing (such as floor slabs, beams and columns, etc.) and environmental testing (such as air quality, noise, etc.). Through these tests, it can be ensured that the building materials and construction processes meet the design and specification requirements, thereby ensuring the safety and durability of the project.

[0003] After searching, the patent publication number CN118294614A discloses a construction sample detection device, which belongs to the field of wall reinforcement net detection technology, including a detection platform, with detection cylinders connected at both ends of the detection platform through a rotating support shaft, and a measuring clamp for fixing the wall reinforcement net sample on the detection cylinder, and end detection parts for detecting the uniformity and welding quality of the wall reinforcement net are set at both ends of the detection cylinder, and a pressure detection part is connected to the guide sliding column through a support rod connection. The present invention sets a pressure detection part on the detection cylinder, and when the detection cylinder is driven by a driving motor to rotate at a high speed, the centrifugal force of the pressure detection part is used to act on the wall reinforcement net, and the deformation data and the final bearing capacity size data of the reinforcement net are obtained through the numerical curve set on the internal displacement distance sensor, so as to ensure the comprehensive detection data of the wall reinforcement net obtained intuitively by the force, and significantly improve the detection efficiency.

[0004] Although the above patent has certain beneficial effects, it does not provide a mechanism for processing the test block itself and the test environment during testing. The lack of environmental improvement measures may cause the test results to be affected by environmental factors, thereby affecting the accuracy and reliability of the data. Changes in environmental conditions may cause changes in the performance of material samples, thereby affecting the stability and consistency of the test results.

[0005] At present, a traditional construction sample testing equipment usually has the following shortcomings. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a construction sample detection device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A construction sample detection device, including a base, a sealed box is arranged on one side of the base, and further including:

[0009] A position adjustment component, wherein the position adjustment component is installed inside the base;

[0010] The environment adjustment mechanism includes a heating plate fixedly installed at the lower part of the sealed box, a vacuum machine is installed on the side of the sealed box away from the light receiving tube, and the vacuum machine is connected to the sealed box through an air suction pipe, an air inlet hole is opened on one side of the structural plate, and air-proof cotton is placed inside the air inlet hole;

[0011] The pre-processing mechanism is installed on one side of the top surface of the base.

[0012] Preferably, the position adjustment component includes a slide rail, which is arranged inside the base, and a driving device is installed at one end of the slide rail away from the fixed frame, a sliding table is slidably arranged on the outer surface of the slide rail, and a laser detection component is fixedly connected to the top outer surface of the sliding table.

[0013] Preferably, the laser detection component comprises a transmitting component and a receiving component, and the transmitting component comprises a laser transmitter fixedly connected to the outer surface of the top of the sliding platform.

[0014] Preferably, the transmitting assembly includes a fixed table fixedly installed on the top of one side of the base away from the sliding table, and a sealing box is fixedly installed on the top of the fixed table, and a light receiving tube corresponding to the laser transmitter is arranged on the side of the sealing box close to the fixed table, a sliding groove is opened at the bottom of one side of the structural plate, four vibration receivers are arranged inside the sliding groove, and the tops of the four vibration receivers are slidably connected to the sliding groove through connecting rods, and the test block and the vibration receiver are placed tightly.

[0015] Preferably, a focusing lens is installed on the inner wall of the light receiving tube.

[0016] Preferably, the pretreatment mechanism includes a fixing frame fixedly connected to one side of the top surface of the base, and a hydraulic push rod is fixedly installed on the bottom outer surface of the fixing frame, a sealing box is arranged below the hydraulic push rod, the output end of the hydraulic push rod passes through the top surface of the sealing box and is fixedly connected to a lower pressure plate, a structural plate is fixedly installed on the bottom of the lower pressure plate, and a test block is placed below the inside of the structural plate.

[0017] Preferably, the outer surface of the suction pipe is covered with an elastic protective cover.

[0018] Preferably, the outer surface of the slide rail is provided with an anti-corrosion coating.

[0019] Preferably, the air inlet holes are multiple and evenly distributed.

[0020] Preferably, an elastic buffer pad is provided at the bottom of the structural plate.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] 1. The present invention installs a heating plate, a vacuum machine, a hydraulic push rod and other devices. The vacuum machine can evacuate the inside of the sealed box through an air suction pipe, so that there is no air and dust, water vapor and other substances in the sealed box. This eliminates the influence of these factors on the laser, ensures that the laser energy is more concentratedly focused on the test block, and improves the accuracy of the detection. The test block can be heated by the set heating plate to evaporate the moisture inside the test block. The boiling point of the moisture can be reduced in a vacuum environment, thereby accelerating the evaporation of the moisture and improving the efficiency.

[0023] 2. The present invention uses devices such as a hydraulic push rod and a lower pressure plate to drive the lower pressure plate and the structural plate at its bottom to move downward until they are in contact with the test block to fix the test block. This can close the pores inside the test block to a certain extent, reduce the scattering and reflection interference of these pores on the impact echo, and make the echo signal more clearly reflect the true internal structure and defects of the test block. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall axial structure of a construction sample detection device proposed by the present invention.

[0025] Figure 2 This is a schematic structural diagram of a base and a driving device of a construction sample detection device proposed by the present invention.

[0026] Figure 3 This is a schematic structural diagram of a laser transmitter and a sliding table of a construction sample detection device proposed by the present invention.

[0027] Figure 4 This is a schematic diagram of the structure of a fixing platform and a sealing box of a construction sample detection device proposed by the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of a lower pressure plate and a structural plate of a construction sample detection device proposed by the present invention.

[0029] Figure 6 This is a schematic diagram of the half-section structure of a sealed box of a construction sample detection device proposed by the present invention.

[0030] In the figure: 1. base; 2. slide rail; 3. drive device; 4. sliding table; 5. laser transmitter; 6. fixed table; 7. fixed frame; 8. hydraulic push rod; 9. sealing box; 10. vacuum machine; 11. suction pipe; 12. light receiving tube; 13. focusing lens; 14. lower pressure plate; 15. structural plate; 16. air inlet hole; 17. sliding groove; 18. slider; 19. connecting rod; 20. vibration receiver; 21. heating plate; 22. test block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-6 A construction sample detection device comprises a base 1, a fixing frame 7 is fixedly connected to one side of the top surface of the base 1, and a hydraulic push rod 8 is fixedly installed on the outer surface of the bottom of the fixing frame 7, a sealing box 9 is arranged below the hydraulic push rod 8, the output end of the hydraulic push rod 8 passes through the top surface of the sealing box 9 and is fixedly connected to a lower pressing plate 14, a structural plate 15 is fixedly installed at the bottom of the lower pressing plate 14, a test block 22 is placed below the inside of the structural plate 15, and starting the hydraulic push rod 8 can press the structural plate 15 downward through the lower pressing plate 14 until it fits with the test block 22 to fix the test block 22, and an elastic buffer pad is arranged at the bottom of the structural plate 15 to prevent wear when the structural plate 15 presses the test block 22 downward.

[0033] A slide rail 2 is arranged inside the base 1, and an anti-corrosion coating is arranged on the outer surface of the slide rail 2, which can effectively prevent rust and wear and extend the service life of the slide rail 2. A driving device 3 is installed at one end of the slide rail 2 away from the fixed frame 7, and a sliding table 4 is slidably arranged on the outer surface of the slide rail 2. A laser emitter 5 is fixedly connected to the top outer surface of the sliding table 4. A fixed table 6 is fixedly installed on the top of the side of the base 1 away from the sliding table 4. A light receiving tube 12 corresponding to the laser emitter 5 is arranged on the side of the sealing box 9 close to the fixed table 6, and a focusing lens 13 is installed on the inner wall of the light receiving tube 12. The fixed table 6 at the bottom is driven by the driving device 3 to move on the slide rail 2, so that the laser emitter 5 can be driven to move to adjust the distance between it and the light receiving tube 12, and then the laser is focused by the provided focusing lens 13 so that the laser is irradiated to the point marked by the test block 22.

[0034] A heating plate 21 is fixedly installed at the lower part of the interior of the sealed box 9, a vacuum machine 10 is installed on the side of the sealed box 9 away from the light receiving tube 12, and the vacuum machine 10 is connected to the sealed box 9 through an air intake pipe 11, and the outer surface of the air intake pipe 11 is provided with an elastic protective sleeve to prevent it from being damaged by external force when moving or using. Starting the vacuum machine 10 can form a vacuum environment inside the sealed box 9 through the air intake pipe 11. The air pressure decreases in the vacuum environment, which reduces the boiling point of water. At the same time, the heating plate 21 is started again to heat the test block 22, so that the moisture inside the test block 22 evaporates. A plurality of air inlet holes 16 are opened on one side of the structural plate 15, and the plurality of air inlet holes 16 are evenly distributed. The air inlet holes 16 are each provided with dew-isolating cotton. The water vapor generated by the test block 22 can enter the air inlet hole 16 and be absorbed by the dew-isolating cotton. The moisture content of the test block 22 can be detected by measuring the weight change of the dew-isolating cotton.

[0035] A sliding groove 17 is provided at the bottom of one side of the structural plate 15, and four vibration receivers 20 are arranged inside the sliding groove 17. The tops of the four vibration receivers 20 are slidably connected to the sliding groove 17 through a connecting rod 19. The test block 22 is placed closely to the vibration receiver 20. The vibration receiver 20 can receive the rebound wave inside the test block 22, and can accurately measure whether there are defects inside the test block 22 without damaging the test block 22.

[0036] In the present invention, the sealing box 9 is opened, and the test block 22 is placed under the structural plate 15, and the test surface of the test block 22 is tightly fitted to the vibration receiver 20. The slider 18 slides in the sliding groove 17, and the number and spacing of the vibration receivers 20 fitted on the test block 22 are adjusted according to the size of the test block 22; the fixed weight of the isolation cotton is stuffed into the structural plate 15.

[0037] After the test block 22 is positioned, the hydraulic push rod 8 is started, and the structural plate 15 is slightly pressed down by the lower pressing plate 14, so that the structural plate 15 is tightly attached to the top of the test block 22 to fix it, and a suitable pressure is applied without damaging the structure of the test block 22. This has the following advantages.

[0038] First, reasonable pre-stress can close the pores inside the test block 22 to a certain extent, reduce the scattering and reflection interference of these pores on the impact echo, and make the echo signal reflect the real internal structure and defects of the test block 22 more clearly.

[0039] Second: Stable fixation can avoid the change of the laser impact point position due to the movement of the test block 22, ensuring the consistency and repeatability of each test. If the test block 22 shakes during the test process, it will not only affect the focusing effect of the laser, but also cause errors in the reception and analysis of the echo signal.

[0040] The position of the laser emitter 5 on the sliding table 4 and the distance from the sliding table 4 to the fixed table 6 are adjusted to ensure that the laser can be emitted into the light receiving tube 12 and focused by the focusing lens 13 to be emitted to the point marked on the test block 22 .

[0041] First, start the heating plate 21 and the vacuum machine 10. The vacuum machine 10 sucks the air in the sealed box 9 through the suction pipe 11. After the air is sucked out, turn off the vacuum machine 10. The heating plate 21 quickly heats the test block 22. There is usually a certain amount of moisture inside the test block 22, which mainly comes from the water added during the concrete mixing process and the water generated by the cement hydration reaction. This has the following advantages.

[0042] First, when using laser as the impact source, moisture may absorb part of the laser energy, reducing the intensity and effect of the laser impact, resulting in a weakening of the impact echo signal, making it difficult for the detection equipment to accurately capture and analyze the signal, affecting the accuracy of the judgment of the internal structure of the test block 22. After evaporating the internal moisture, the accuracy of the detection can be improved.

[0043] Second, in a vacuum environment, the air pressure is extremely low. According to the principles of physics, the boiling point of water decreases as the air pressure decreases, which speeds up the phase change process of water from liquid to gas, thereby accelerating the evaporation of water inside the test block 22 .

[0044] Third: In a vacuum environment, there is no air and dust, water vapor and other substances in it, which eliminates the effects of these factors on the absorption, scattering and refraction of laser energy, ensuring that the laser energy is more concentratedly focused on the test block 22, thereby generating a stronger and more stable impact echo signal, which is conducive to improving the accuracy of detection.

[0045] Fourth: the water vapor generated by the heated test block 22 enters the structural plate 15 through the air inlet 16 and is absorbed by the isolation cotton. After the test is completed, the isolation cotton is taken out and the weight of the isolation cotton is measured again to measure the water content of the test block 22 itself.

[0046] The laser transmitter 5 is started to use the laser as an impact source to measure the internal defects of the test block 22 by the impact echo method. The vibration receiver 20 receives the rebound wave inside the test block 22, and can accurately measure whether there are defects inside the test block 22 without damaging the test block 22.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction sample detection device, comprising a base (1), wherein a sealing box (9) is arranged on one side of the interior of the base (1), characterized in that: Also includes: A position adjustment component, the position adjustment component being installed inside the base (1); An environmental adjustment mechanism, wherein the environmental adjustment component comprises a heating plate (21) fixedly installed at the lower part of the sealed box (9), a vacuum machine (10) is installed on the side of the sealed box (9) away from the light receiving tube (12), and the vacuum machine (10) is connected to the sealed box (9) through an air suction pipe (11), an air inlet hole (16) is opened on one side of the structural plate (15), and air-proof cotton is placed inside the air inlet hole (16); A pretreatment mechanism is installed on one side of the top surface of the base (1).

2. A construction sample detection device according to claim 1, characterized in that: The position adjustment component comprises a slide rail (2), the slide rail (2) is arranged inside the base (1), and a driving device (3) is installed at one end of the slide rail (2) away from the fixed frame (7), a slide table (4) is slidably arranged on the outer surface of the slide rail (2), and a laser detection component is fixedly connected to the top outer surface of the slide table (4).

3. A construction sample detection device according to claim 2, characterized in that: The laser detection component comprises a transmitting component and a receiving component, and the transmitting component comprises a laser transmitter (5) fixedly connected to the top outer surface of the sliding platform (4).

4. A construction sample detection device according to claim 3, characterized in that: The transmitting assembly comprises a fixed table (6) fixedly installed on the top of a side of the base (1) away from the sliding table (4), and a sealing box (9) is fixedly installed on the top of the fixed table (6), and a light receiving tube (12) corresponding to the laser transmitter (5) is arranged on the side of the sealing box (9) close to the fixed table (6), and a sliding groove (17) is opened at the bottom of one side of the structural plate (15), and four vibration receivers (20) are arranged inside the sliding groove (17), and the tops of the four vibration receivers (20) are slidably connected to the sliding groove (17) through a connecting rod (19), and the test block (22) is placed in close contact with the vibration receiver (20).

5. A construction sample detection device according to claim 4, characterized in that: A focusing lens (13) is installed on the inner wall of the light receiving tube (12).

6. A construction sample detection device according to claim 1, characterized in that: The pretreatment mechanism comprises a fixing frame (7) fixedly connected to one side of the top surface of the base (1), and a hydraulic push rod (8) is fixedly installed on the bottom outer surface of the fixing frame (7), a sealing box (9) is arranged below the hydraulic push rod (8), the output end of the hydraulic push rod (8) passes through the top surface of the sealing box (9) and is fixedly connected to a lower pressure plate (14), a structural plate (15) is fixedly installed at the bottom of the lower pressure plate (14), and a test block (22) is placed below the structure plate (15).

7. A construction sample detection device according to claim 1, characterized in that: The outer surface of the air intake pipe (11) is covered with an elastic protective sleeve.

8. A construction sample detection device according to claim 1, characterized in that: The outer surface of the slide rail (2) is provided with an anti-corrosion coating.

9. A construction sample detection device according to claim 1, characterized in that: The air inlet holes (16) are arranged in a plurality and are evenly distributed.

10. A construction sample detection device according to claim 6, characterized in that: An elastic buffer pad is arranged at the bottom of the structural plate (15).

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