Portable aerated concrete blank hardness tester

Abstract

The utility model discloses a portable hardness tester for an aerated concrete blank. The portable aerated concrete blank hardness tester comprises a bearing support, a plurality of probes, a gradienter and a gravity ball. The connecting end of each probe is connected with the bearing support, the penetrating end of each probe extends in the direction away from the bearing support, and the outer surface of each probe is divided into at least three continuous hardness indicating sections from the penetrating end to the connecting end. The gradienter is fixedly connected with the bearing support; and the gravity ball is detachably placed on the upper surface of the bearing support and is used for applying downward gravity to the probe. The device is simple in structure and convenient to carry. And the operation method is simple, is not easily influenced by human factors, and has low requirements on operators. The measurement result is accurate, and errors caused by in-vitro and in-vivo differences of the green body are avoided. The measurement fluctuation is small, and the influence of local difference on the measurement result is avoided.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, specifically to a portable aerated concrete billet hardness tester. Background Technology

[0002] In the production of aerated concrete, the hardness of the green body at demolding directly affects product quality. If the green body hardness is too low, it is prone to collapse and deformation; if the green body hardness is too high, the cutting wire is prone to breakage, and the green body is also prone to cutting defects such as chipping and corner breakage. Therefore, determining the optimal demolding hardness of the green body is crucial for the quality control of aerated concrete.

[0003] CN201710107841.6 discloses a device and method for measuring the hardness of aerated concrete block blanks. Although this device has high measurement accuracy and is unaffected by human factors, its complex structure makes it inconvenient to carry, repair, and maintain. CN202222454820.0 discloses a hardness tester for autoclaved aerated concrete blanks. This device has a simple structure, but the angle and speed at which the probe penetrates the blank affect the measured value, making it highly susceptible to human factors. Furthermore, current aerated concrete blank hardness testers primarily measure the surface hardness of the blank. However, in actual production, due to the large volume of the mold frame and the significant internal and external temperature difference of the blank, the surface hardness is always lower than the internal hardness. Therefore, evaluating the optimal demolding and cutting time by measuring the surface hardness of the blank has a large error.

[0004] In summary, existing hardness measuring devices suffer from technical problems such as complex structure, high operational requirements, and large errors. Utility Model Content

[0005] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a portable aerated concrete billet hardness tester to solve the technical problems of complex structure, high operation requirements and large error in the prior art.

[0006] To achieve the above-mentioned technical objectives, this application adopts the following technical solution:

[0007] This application provides a portable hardness tester for aerated concrete billets, including a load-bearing drag, multiple probes, a level, and a gravity ball.

[0008] Load-bearing trailer;

[0009] Multiple probes, each probe having a connecting end connected to the load-bearing tow and an insertion end extending away from the load-bearing tow, the outer surface of the probe being divided into at least three consecutive hardness indicator segments from the insertion end to the connecting end.

[0010] The level is fixedly connected to the load-bearing trailer;

[0011] A gravity ball, detachably placed on the upper surface of the load-bearing tow, is used to apply downward gravity to the probe.

[0012] In some embodiments of this application, one of the hardness indicator segments includes a pre-insertion segment and a measurement reference segment, the pre-insertion segment being located on the side of the measurement reference segment away from the other hardness indicator segments.

[0013] In some embodiments of this application, the outer surfaces of the plurality of hardness indicator segments are respectively coated with marking coatings of different colors.

[0014] In some embodiments of this application, at least one of the hardness indicator segments has an annular scale line on its outer surface.

[0015] In some embodiments of this application, a plurality of probes are evenly distributed along the circumference of the load-bearing trailer, and the axes of the plurality of probes are parallel to each other.

[0016] In some embodiments of this application, the outline of the load-bearing tractor is annular, and the inner diameter of the annulus is smaller than the minimum diameter of the gravity ball.

[0017] In some embodiments of this application, the plane on which the load-bearing drag lies is perpendicular to the axial direction of the probe.

[0018] In some embodiments of this application, the load-bearing tractor and the gravity ball are coaxially arranged.

[0019] In some embodiments of this application, the surface of the load-bearing tow facing the gravity ball is provided with anti-slip protrusions, and the surface of the gravity ball facing the load-bearing tow is provided with a limiting groove, the limiting groove cooperating with the anti-slip protrusions.

[0020] In some embodiments of this application, a hydraulic damper is also included, which is disposed between the gravity ball and the load-bearing tow.

[0021] Compared with the prior art, the beneficial technical effects of the technical solution provided in this application include:

[0022] The device in this application has a simple structure: functionally, it consists of four parts: a probe, a load-bearing drag, a level, and a gravity ball. Structurally, the probe, load-bearing drag, and level can be integrated into a single, non-disassembly unit, comprising only two parts for easy portability and requiring minimal maintenance. Operation is simple: it is not easily affected by human factors; only the verticality of the probe during insertion needs to be ensured. Since verticality can be checked with a level, the measurement results are not easily affected by human factors. Based on three hardness indicator segments, corresponding to excessive, appropriate, and insufficient hardness of the billet, operators can easily observe and make judgments, requiring minimal skill from operators. Measurement results are accurate: the probe can penetrate into the interior of the aerated concrete billet, thus the measurement results are not affected by differences between the inside and outside of the billet. Measurement fluctuations are small: during aerated concrete production, there are certain differences in the mixing and hardening processes, resulting in inconsistent hardness in different areas of the billet. This device has multiple probes covering a large area, which can evenly distribute pressure, preventing the probe from tipping over during its descent and effectively avoiding the influence of local differences on the measurement results, making the measured values ​​more representative of the entire billet. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the embodiments will be briefly described below:

[0024] Figure 1 This is a schematic diagram of a portable aerated concrete billet hardness tester provided in an embodiment of this application.

[0025] Figure label:

[0026] 1-Load-bearing tow bar, 2-Probe, 3-Level, 4-Gravity ball;

[0027] 21 - First hardness segment, 22 - Second hardness segment, 23 - Third hardness segment;

[0028] 211 - Preparatory insertion section, 212 - Measurement reference section. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] Those skilled in the art will understand that, in this specification, the term "comprising" is an open-ended expression, meaning that the stated feature is present but other features are excluded. Directional terms such as "upper," "lower," "left," and "right" refer to exemplary directions based on the accompanying drawings. Features specified as "first" or "second" implicitly include one or more of that feature. Singular expressions can also be used in plural forms. "Multiple" means two or more. The terms "installed," "connected," and "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection via an intermediate medium, and it can be a connection within two components. Furthermore, "linked" can include wireless connections.

[0031] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a portable aerated concrete billet hardness tester to solve the technical problems of complex structure, high operation requirements and large error in the prior art.

[0032] To achieve the above-mentioned technical objectives, this application adopts the following technical solution:

[0033] like Figure 1 As shown, this application provides a portable aerated concrete billet hardness tester, including a load-bearing drag 1, multiple probes 2, a level 3, and a gravity ball 4.

[0034] Each probe 2 is connected to the load-bearing trailer 1 at its connecting end, and its insertion end extends away from the load-bearing trailer 1. The outer surface of the probe 2 is divided into at least three continuous hardness indicator segments from the insertion end to the connecting end. In this embodiment, the plurality of hardness indicator segments include at least a first hardness segment 21, a second hardness segment 22, and a third hardness segment 23 in sequence, corresponding to hardness exceeding the standard, suitable, and insufficient, respectively.

[0035] The level 3 is fixedly connected to the load-bearing trailer 1.

[0036] Gravity ball 4 is detachably placed on the upper surface of the load-bearing tow 1 to apply downward gravity to the probe 2.

[0037] First, the insertion ends of multiple probes 2 are slowly and vertically inserted into the blank, reaching a preset hardness indicator segment (e.g., the first hardness segment 21). The verticality of the probes 2 is checked using a level 3 fixed to the load-bearing drag 1 to ensure that the probes 2 remain vertical during insertion, thus reducing measurement errors. Next, a gravity ball 4 is placed on the upper surface of the load-bearing drag 1. The gravity ball 4 applies a downward force to the probes 2 through the load-bearing drag 1, causing the probes 2 to penetrate further into the blank. After the probes 2 reach equilibrium under gravity, the position of the hardness indicator segment where the outer surface of the probes 2 intersects the surface of the blank is observed. The hardness of the blank is determined based on the position of the hardness indicator segment (e.g., the first hardness segment 21, the second hardness segment 22, and the third hardness segment 23). The corresponding hardness value is recorded based on the position of the hardness indicator segment, providing a basis for subsequent demolding and cutting.

[0038] If the surface of the aerated concrete billet is in the second hardness range 22 of probe 2, it means that the hardness of the billet is suitable for demolding and cutting; if it is in the third hardness range 23, it means that the billet is too soft and the static resting time needs to be extended; if it is in the first hardness range 21, it means that the billet is too hard and demolding and cutting need to be arranged immediately, otherwise the entire mold will be scrapped.

[0039] The device structure of this application is simple: functionally, it can be divided into four components: probe 2, load-bearing drag 1, level 3, and gravity ball 4. Structurally, probe 2, load-bearing drag 1, and level 3 can be manufactured as a single, non-disassembly unit, consisting of only two parts, making it easy to carry and requiring virtually no maintenance. The operation method is simple: it is not easily affected by human factors; only the perpendicularity of probe 2 during insertion needs to be ensured. Since perpendicularity can be checked by level 3, the measurement results are not easily affected by human factors. Based on the three hardness indication segments, corresponding to excessive, suitable, and insufficient hardness of the billet, operators can easily observe and make judgments, requiring minimal skill from operators. The measurement results are accurate: probe 2 can penetrate into the interior of the aerated concrete billet, so the measurement results will not be affected by differences between the inside and outside of the billet. Measurement fluctuations are small: during the production of aerated concrete, there are certain differences in the mixing process and the molding and hardening process, resulting in inconsistent hardness in different areas of the billet. This device has multiple probes 2, covering a large area, which can evenly distribute the pressure. This not only prevents the probes 2 from tipping over during the descent, but also effectively avoids the influence of local differences on the measurement results, making the measured values ​​more representative of the entire billet.

[0040] In some embodiments of this application, one of the hardness indication segments includes a pre-insertion segment 211 and a measurement reference segment 212, wherein the pre-insertion segment 211 is located on the side of the measurement reference segment 212 away from the other hardness indication segments.

[0041] For example, the first hardness segment 21 includes a pre-insertion segment 211 and a measurement reference segment 212, wherein the pre-insertion segment 211 is located on the side of the measurement reference segment 212 away from the second hardness segment 22.

[0042] Since the load-bearing device 1, the level 3, and the probe 2 all have a certain weight, when the measuring instrument is placed on the aerated concrete blank, the probe 2 will penetrate the blank to a certain depth under its own weight. The pre-insertion section 211 of the probe 2 is controlled to be completely submerged in the blank, so that the surface of the blank is precisely located at the measurement reference section 212. This step ensures that the starting point of the measurement is consistent, providing a reference for subsequent hardness determination.

[0043] By observing the relative position of the measuring reference segment 212 and the surface of the billet, the hardness of the billet can be preliminarily determined. If the billet is hard, the probe 2 will penetrate to a shallower depth; conversely, if the billet is soft, the probe 2 will penetrate to a deeper depth. After the initial hardness determination, a gravity ball 4 is placed to apply additional downward gravity, causing the probe 2 to penetrate the billet further. By observing the position of the hardness indicator segment where the outer surface of the probe 2 intersects the surface of the billet, the hardness of the billet can be determined more accurately.

[0044] By controlling the positions of the pre-insertion section 211 and the measurement reference section 212 of probe 2, the hardness of the billet can be quickly preliminarily determined without using the gravity ball 4, improving measurement efficiency. Since the position of the measurement reference section 212 is fixed, the starting point for each measurement is consistent, thus improving the consistency and comparability of the measurement results. Preliminary hardness determination avoids measurement errors caused by directly using the gravity ball 4 on billets with significant hardness differences. Operators can choose whether to continue using the gravity ball 4 for more precise measurements based on the preliminary determination results, making the operation more flexible.

[0045] If the surface of the billet remains within the measurement reference section 212 after applying the gravity ball 4, the billet will be found to have a higher hardness in the secondary judgment.

[0046] In some embodiments of this application, the outer surfaces of the plurality of hardness indicator segments are respectively coated with marking coatings of different colors.

[0047] The outer surface of each probe 2's multiple hardness indicator segments is coated with a different colored marking coating. These colors are distinguished according to hardness level; for example, red may indicate the harder first hardness segment 21, green may indicate the medium hardness segment 22, and yellow may indicate the softer third hardness segment 23.

[0048] Alternatively, black indicates the pre-insertion section 211, and red indicates the measurement reference section 212.

[0049] The probe 2 is inserted into the aerated concrete blank. Due to the weight of the probe 2 itself and the load-bearing trailer 1, the probe 2 will penetrate to a certain depth. By observing the color of the hardness indicator segment where the outer surface of the probe 2 intersects the surface of the blank, the hardness of the blank can be visually determined. For example, if the black segment is exposed, it indicates that the blank is relatively hard; if the green or yellow segment is exposed, it indicates that the blank is relatively soft. If the red segment is exposed, a secondary determination is made using the gravity ball 4.

[0050] For more precise measurements, a gravity ball 4 can be placed to allow the probe 2 to penetrate further into the billet, and then the color change can be observed again to obtain more accurate hardness information. If it remains red, the billet is relatively hard; if it is yellow, the billet is relatively soft; and if it is green, the hardness is appropriate.

[0051] Different colored markings make measurement results immediately clear, allowing operators to quickly and intuitively determine the hardness of the aerated concrete billet without the need for additional calculations or measuring tools. Color markings reduce human error in readings, improving measurement accuracy and consistency. Operators can obtain hardness information simply by observing the color, eliminating complex operating procedures and reducing operational difficulty and training costs. Color markings speed up measurement, improve production efficiency, and are particularly suitable for rapid quality control in large-scale production. By selecting different colors and corresponding hardness ranges, it is easy to adapt to aerated concrete billets of varying hardness, offering high flexibility.

[0052] In some embodiments of this application, at least one of the hardness indicator segments has an annular scale line on its outer surface.

[0053] At least one hardness indicator segment has annular graduations on its outer surface. These graduations are marked according to a specific depth or hardness grade to indicate the depth to which the probe 2 penetrates the blank or the corresponding hardness value.

[0054] By observing the annular scale line on the hardness indicator section where the outer surface of probe 2 intersects with the surface of the billet, the depth of probe 2 penetration can be accurately read, thereby determining the hardness of the billet.

[0055] If a more in-depth measurement is required, a gravity ball 4 can be placed to allow the probe 2 to penetrate the blank further, and then the scale lines can be observed again to obtain more accurate hardness information.

[0056] The circular scale provides precise depth or hardness readings, making measurements more accurate. The scale reduces subjective errors from human judgment, improving the objectivity and consistency of measurements. By setting scales at different locations, it can accommodate aerated concrete blocks of varying hardness, offering high flexibility.

[0057] In some embodiments of this application, a plurality of probes 2 are evenly distributed along the circumference of the load-bearing trailer, and the axes of the plurality of probes 2 are parallel to each other.

[0058] This design ensures that probe 2 is subjected to uniform force when penetrating the aerated concrete blank, improving the representativeness of the measurement. Probe 2 is inserted vertically into the aerated concrete blank, ensuring directional consistency of the measurement and reducing errors caused by angular deviations.

[0059] During the measurement process, the billet hardness tester is mainly subjected to downward gravity and upward frictional resistance. When the tester reaches mechanical equilibrium, the penetration depth of probe 2 (i.e., the depth to which probe 2 penetrates the billet) is inversely proportional to the hardness of the billet. By measuring the penetration depth of probe 2, the hardness of the billet can be determined. The smaller the penetration depth, the higher the hardness of the billet; conversely, the larger the penetration depth, the lower the hardness of the billet. Based on the hardness of the billet, the appropriate demolding and cutting time can be determined. When the hardness reaches a certain standard, it indicates that the billet has hardened sufficiently and can be demolded and cut.

[0060] Because the probes 2 are evenly distributed and penetrate vertically, the measurement results are more accurate and can truly reflect the hardness of the billet. Simultaneous measurement by multiple probes 2 covers a larger area, reducing the impact of local differences on the measurement results and making the measured values ​​more representative.

[0061] In some embodiments of this application, the outline of the load-bearing tow 1 is annular, and the inner diameter of the annulus is smaller than the minimum diameter of the gravity ball 4.

[0062] The outline of the load-bearing trolley 1 is ring-shaped, which allows it to form a stable support surface when placed on the billet. The gravity ball 4 is placed inside the ring-shaped load-bearing trolley 1, and its minimum diameter is larger than the inner diameter of the load-bearing trolley 1, ensuring that the gravity ball 4 will not fall off or shift during the measurement process.

[0063] The ring-shaped load-bearing support 1 provides a stable support surface, making the measuring instrument more stable during measurement and reducing measurement errors. The minimum diameter of the gravity ball 4 is larger than the inner diameter of the load-bearing support 1, ensuring the stability of the gravity ball 4 during measurement and avoiding inaccurate measurements caused by displacement or detachment. Due to the reasonable cooperation between the load-bearing support 1 and the gravity ball 4, the measuring instrument can apply a vertically downward force more accurately, thereby improving the accuracy of hardness measurement.

[0064] In some embodiments of this application, the plane of the load-bearing trailer 1 is perpendicular to the axial direction of the probe 2.

[0065] The plane of the load-bearing drag 1 is perpendicular to the axis of the probe 2, ensuring that the force applied to the probe 2 when it penetrates the billet is perpendicular to the billet surface, avoiding measurement errors caused by oblique force. Because the plane of the load-bearing drag 1 is perpendicular to the axis of the probe 2, the force applied by the load-bearing drag 1 to the billet surface can be evenly distributed to each probe 2, allowing each probe 2 to accurately reflect the hardness of its area. The gravity ball 4 evenly transmits gravity to each probe 2 through the load-bearing drag 1, ensuring that the depth of the probe 2 penetrating the billet is mainly affected by the hardness of the billet and gravity.

[0066] The vertical layout ensures the accuracy of the force direction on probe 2, improving the accuracy of hardness measurement. The planar design of the load-bearing drag 1 allows gravity to be evenly distributed on each probe 2, avoiding measurement errors caused by uneven local force. The vertical layout enhances the overall structural stability of the instrument, reducing shaking or tilting during the measurement process.

[0067] In some embodiments of this application, the load-bearing drag 1 and the gravity ball 4 are coaxially arranged, the surface of the load-bearing drag 1 facing the gravity ball 4 is provided with anti-slip protrusions, and the surface of the gravity ball 4 facing the load-bearing drag 1 is provided with a limiting groove, the limiting groove cooperating with the anti-slip protrusions.

[0068] The load-bearing tow 1 and the gravity ball 4 are coaxially arranged, which ensures that the position of the gravity ball 4 inside the load-bearing tow 1 is stable, so that gravity can be directly and accurately transmitted to the probe 2 through the load-bearing tow 1.

[0069] The surface of the load-bearing drag 1 facing the gravity ball 4 is provided with anti-slip protrusions. These protrusions increase the friction between the contact surface of the load-bearing drag 1 and the gravity ball 4, preventing the gravity ball 4 from sliding during measurement. The surface of the gravity ball 4 facing the load-bearing drag 1 is provided with limiting grooves. These grooves cooperate with the anti-slip protrusions of the load-bearing drag 1 to further ensure the stable position of the gravity ball 4 within the load-bearing drag 1, avoiding the displacement or rotation of the gravity ball 4.

[0070] The coaxial setup and limiting mechanism significantly enhance the stability between the gravity ball 4 and the load-bearing drag 1, ensuring accuracy during measurement. The anti-slip protrusions effectively prevent the gravity ball 4 from slipping during measurement, improving reliability. Due to the stable engagement between the gravity ball 4 and the load-bearing drag 1, the probe 2 experiences more uniform force, resulting in improved measurement accuracy.

[0071] In some embodiments of this application, a hydraulic damper is also included, which is disposed between the gravity ball 4 and the load-bearing tow 1.

[0072] The gravity ball 4 provides stable pressure through its own weight, which is transmitted to the probe 2 via the load-bearing tow 1. A hydraulic damper is installed between the gravity ball 4 and the load-bearing tow 1. When the probe 2 penetrates the billet, the hydraulic damper absorbs and buffers the impact force caused by uneven billet hardness or during operation. The hydraulic damper distributes the pressure of the gravity ball 4 evenly to the load-bearing tow 1 through its internal hydraulic oil, and then transmits it to the probe 2, ensuring that the probe 2 is subjected to uniform force.

[0073] The hydraulic buffer acts as a buffer, which on the one hand controls the speed and force of the probe 2 entering the billet, preventing damage to the billet caused by excessively fast or forceful insertion. On the other hand, it controls the insertion depth of the probe 2 to be mainly affected by the gravity of the device itself, eliminating the influence of different impulses caused by the different velocities carried by the gravity ball 4 at the moment of placement on the insertion depth.

[0074] The hydraulic buffer effectively reduces the impact force caused by uneven hardness of the billet or improper operation, protecting the measuring instrument and the billet. By uniformly distributing pressure, the hydraulic buffer improves the accuracy and consistency of the measurement. The buffering effect reduces the risk of wear and damage to probe 2, extending its service life.

[0075] The level 3 is a biaxial bubble level 3. The biaxial bubble level 3 contains two mutually perpendicular bubble tubes, used to detect the levelness of the equipment in two vertical directions. When the equipment is placed on the billet, gravity causes the bubbles to move within the bubble tubes of the level 3. By observing the positions of the bubbles in the two bubble tubes, it can be determined whether the equipment is level. If both bubbles are located at the center of the bubble tubes, the equipment is level; if the bubbles are off-center, the equipment is tilted. Based on the bubble positions, the operator can adjust the equipment position until the bubbles return to the center position, ensuring the equipment is level.

[0076] The dual-axis bubble level 3 can simultaneously detect levelness in two vertical directions, improving the accuracy of level measurement. The position of the bubble visually displays the equipment's levelness, allowing operators to quickly assess and adjust it. The bubble level 3 is unaffected by external electromagnetic interference, exhibiting good stability and reliable measurement results. By observing the bubble's position, operators can quickly adjust the equipment to a level position, improving measurement efficiency. Compared to other types of leveling devices, the dual-axis bubble level 3 is lower in cost and more economical.

[0077] Compared with the prior art, the beneficial technical effects of the technical solution provided in this application include:

[0078] 1. The device has a simple structure. It mainly consists of four parts: probe 2, load-bearing tow 1, level 3, and gravity ball 4. Probe 2, load-bearing tow 1, and level 3 are integrated and cannot be disassembled, making them easy to carry and requiring virtually no maintenance.

[0079] 2. The operation method is simple and not easily affected by human factors. There are three main points during measurement: the insertion depth of probe 2 should be controlled within the measurement reference section 212; ensure the perpendicularity of probe 2 when it is inserted; and slowly place the gravity ball 4 on the load-bearing jack 1. During normal operation, ensuring the perpendicularity of probe 2 when it is inserted is sufficient to guarantee the accuracy of the measurement. Since the perpendicularity can be checked by the level 3, the measurement results are not easily affected by human factors.

[0080] 3. Accurate measurement results. Probe 2 can penetrate into the interior of the aerated concrete blank, so the measurement results will not be affected by differences between the inside and outside of the blank.

[0081] 4. Minimal Measurement Fluctuations. During the production of aerated concrete, there are certain differences in the mixing and hardening processes, resulting in inconsistent hardness across different areas of the green body. This device has multiple probes (2) covering a large area, effectively avoiding the influence of local differences on the measurement results, and ensuring that the measured values ​​are more representative of the entire green body.

[0082] Those skilled in the art will understand that the steps, measures, and schemes in the various operations, methods, processes, and procedures discussed in this application can be alternated, modified, rearranged, decomposed, combined, or deleted.

[0083] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.

Claims

1. A portable hardness tester for aerated concrete billets, characterized in that, include: Load-bearing trailer; Multiple probes, each probe having a connecting end connected to the load-bearing tow and an insertion end extending away from the load-bearing tow, the outer surface of the probe being divided into at least three consecutive hardness indicator segments from the insertion end to the connecting end. The level is fixedly connected to the load-bearing trailer; A gravity ball, detachably placed on the upper surface of the load-bearing tow, is used to apply downward pressure to the probe.

2. The portable aerated concrete billet hardness tester according to claim 1, characterized in that, One of the hardness indication segments includes a pre-insertion segment and a measurement reference segment, the pre-insertion segment being located on the side of the measurement reference segment away from the other hardness indication segments.

3. The portable aerated concrete billet hardness tester according to claim 1, characterized in that, The outer surfaces of the multiple hardness indicator segments are each coated with a different colored marking coating.

4. The portable aerated concrete billet hardness tester according to claim 1, characterized in that, At least one of the hardness indicator segments has an annular scale line on its outer surface.

5. The portable aerated concrete billet hardness tester according to claim 1, characterized in that, The multiple probes are evenly distributed along the circumference of the load-bearing trailer, and the axes of the multiple probes are parallel to each other.

6. The portable aerated concrete billet hardness tester according to claim 1, characterized in that, The outline of the load-bearing tow is ring-shaped, and the inner diameter of the ring is smaller than the minimum diameter of the gravity ball.

7. The portable aerated concrete billet hardness tester according to claim 6, characterized in that, The plane containing the load-bearing tow is perpendicular to the axial direction of the probe.

8. The portable aerated concrete billet hardness tester according to claim 6, characterized in that, The load-bearing tractor is coaxially arranged with the gravity ball.

9. The portable aerated concrete billet hardness tester according to claim 6, characterized in that, The surface of the load-bearing tow facing the gravity ball is provided with anti-slip protrusions, and the surface of the gravity ball facing the load-bearing tow is provided with a limiting groove, which cooperates with the anti-slip protrusions.

10. The portable aerated concrete billet hardness tester according to claim 6, characterized in that, It also includes a hydraulic damper, which is disposed between the gravity ball and the load-bearing tow.

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