An aerated brick and a strength detection device thereof

Abstract

This invention discloses an aerated concrete block and its strength testing device, relating to the field of aerated concrete block technology. It includes a block body and a limiting interlocking block. The block body has a limiting interlocking groove of the same size at its center, and horizontal interlocking openings in a cross shape at both the top and bottom. The ports around the horizontal interlocking openings are connected to the interior of the limiting interlocking grooves. This invention allows the limiting interlocking block to simultaneously accommodate both horizontally assembled limiting interlocking grooves and vertically stacked horizontal interlocking openings. The same connector supports two masonry methods, reducing the types of accessories, simplifying the construction process, and significantly improving on-site assembly and stacking efficiency. Furthermore, the rectangular limiting interlocking grooves around the block and the upper and lower cross-shaped horizontal interlocking openings work together to achieve bidirectional mechanical limiting of the brick in both horizontal and vertical directions, effectively preventing brick displacement and misalignment during construction, and ensuring the flatness and structural regularity of the wall.

Description

Technical Field

[0001] This invention relates to the field of aerated concrete block technology, specifically to an aerated concrete block and its strength testing device. Background Technology

[0002] Currently, aerated concrete blocks are a new type of building material that is lightweight, porous, has good thermal insulation, fire resistance, can be nailed, sawed, and planed, and has a certain earthquake resistance. They are used for infill walls, low-rise load-bearing walls, roof panels, and industrial buildings. Traditional aerated concrete blocks require different connecting accessories for horizontal splicing and vertical stacking, lacking a universal limiting structure. The two assembly modes cannot share connectors, resulting in complex construction accessories and cumbersome procedures. Conventional aerated concrete blocks rely solely on end-face bonding for construction, lacking a dedicated interlocking and limiting structure. Horizontal splicing is prone to lateral displacement, and vertical stacking is prone to vertical misalignment, making it difficult to guarantee the verticality of the wall and the flatness of the splices. Furthermore, traditional aerated concrete block construction relies solely on surface mortar bonding, lacking a mechanical interlocking and locking structure. The connection between blocks is loose, resulting in weak lateral force and vibration resistance of the wall, making it prone to loosening and cracking. In addition, ordinary aerated concrete blocks lack interconnected internal through holes, making it impossible to reinforce with mortar inside. Even if through holes are made, there are problems such as inaccurate end alignment and large gaps, making it easy for mortar to leak and resulting in poor reinforcement effect. Traditional aerated concrete block strength testing can only perform static compression testing, lacking an independent impact testing structure. It cannot simulate the two stress scenarios of impact and compression in building use. The testing dimension is limited, making it impossible to comprehensively evaluate the true strength performance of the block. It cannot detect humid conditions and internal defects. Traditional testing equipment cannot simulate water seepage in aerated concrete blocks, nor can it detect internal gaps, voids, and density defects. It can only perform dry compressive strength testing, resulting in incomplete functional coverage. Conventional testing heads make single-point or local contact with the block, leading to concentrated stress and uneven contact area, which can easily cause local stress overload and irregular stress during testing, seriously affecting the reliability of strength test data. Traditional fixing mechanisms can only be used with aerated concrete blocks of a single size. They lack multi-angle and self-adjusting structures and cannot be used with blocks of different lengths, widths, and models. They have low versatility and cannot match the limiting and fitting groove structure of the aerated concrete blocks themselves. The fixing fit is poor. Conventional rigid clamps forcefully compress the aerated concrete blocks, which can easily cause damage to the edges and corners of the blocks and surface cracks. The clamping is a single-point fixation. When the blocks are under pressure during testing, they are prone to displacement and slippage, which cannot guarantee the accuracy of the test alignment. It is also impossible to detect defects such as dents, external defects, and excessive internal voids in the aerated concrete blocks in advance. Unqualified blocks directly enter the strength testing process, wasting testing time and lowering the overall testing benchmark. Traditional devices only detect the pressure at the top and cannot collect multi-point stress data at the bottom of the brick. They can only evaluate the strength from a single dimension and cannot comprehensively analyze the stress situation over the entire area. The evaluation conclusions are not rigorous. There is no automatic collection and cleaning structure for moisture seepage during damp detection and fine debris generated by brick breakage. Residual water stains and impurities remain at the detection station, continuously interfering with subsequent batches of testing. The repeatability is poor. Brick breakage is prone to splashing, posing safety and equipment damage hazards. Summary of the Invention

[0003] The purpose of this invention is to provide an aerated concrete block and its strength testing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an aerated concrete block, comprising a block body and a limiting fitting block, wherein the block body has a limiting fitting groove of the same size in the center of its four sides, and the top and bottom of the block body are provided with horizontal fitting openings in a cross structure, wherein the ports around the horizontal fitting openings are connected to the inside of the limiting fitting grooves. The brick body cavity has several connecting holes, the interior of which are interconnected, and the connecting holes have a grid-like structure when viewed from above.

[0005] Preferably, both the limiting fitting slot and the limiting fitting block are rectangular in structure. When several bricks are assembled horizontally, the limiting fitting block is fitted into the cavity between the mating limiting fitting slots. The cross-section of the horizontal fitting opening is rectangular in structure. When several bricks are assembled in a stacked manner, the limiting fitting block is moved into the cavity of the horizontal fitting opening so that the limiting fitting block is fitted into the interior of the horizontal fitting opening.

[0006] Preferably, the dimensions at the port of the connecting through hole are all larger than the dimensions of the inner cavity of the connecting through hole, and a limit sleeve is provided at the port of the inner cavity of the connecting through hole.

[0007] A strength testing device for aerated concrete blocks includes a worktable, a testing mechanism, a limiting mechanism, and a placement limiting mechanism. A working frame is installed on the top of the worktable, and placement plates for placing aerated concrete blocks are installed on both sides of the worktable. The detection mechanism includes a detection block disposed at the upper end of the inner cavity of the working frame. The bottom end of the detection block is provided with a detection slot. Several transverse blocking strips are equidistantly installed in the inner cavity of the detection slot. Several longitudinal blocking strips are equidistantly installed between the transverse blocking strips. The bottom ends of the transverse blocking strips and the longitudinal blocking strips are provided with arc-shaped openings. The inner cavity of the detection block is provided with a porous air channel. The holes at the bottom ends of the porous air channel extend into the detection slot. The limiting mechanism includes a moving mechanism, which is located at the bottom of both sides of the inner cavity of the working frame. A moving plate is provided on one side of the top of the moving mechanism. Several silicone mounting blocks are equidistantly installed on the opposite side of the moving plates on both sides. A mounting ball is installed on the side of each silicone mounting block away from the moving plate. A mounting sleeve is movably installed on the outside of each mounting ball. A compression limiting block is installed on the end of each mounting sleeve away from the silicone mounting block. Several rubber friction blocks are equidistantly installed on one side of the inner cavity of the mounting sleeve, and the outer periphery of the mounting ball is roughened. The placement limiting mechanism includes an expansion limiting mechanism, which is located in the middle of the worktable. Several movable push rods are equidistantly arranged in the middle of the worktable. Each movable push rod has a connector at its top end and a silicone cap at its top end. Each movable push rod has a silicone sleeve at its bottom end. Each movable push rod has a mounting opening at a position relative to the movable push rod in the middle of the worktable. Each movable push rod has a pressure sensor at its bottom end. Each silicone cap has an arc-shaped mounting opening at its top end, and each arc-shaped mounting opening has a humidity sensor installed inside its cavity. An absorption layer is also installed inside the arc-shaped mounting opening.

[0008] Preferably, the inner cavity of the working frame is provided with a guide extrusion mechanism on both sides, and the bottom of the detection block is provided with mounting protrusions around the perimeter. During the detection process, the mounting protrusions are fitted into the top of the inner cavity of the limiting fitting groove.

[0009] Preferably, each of the mounting spheres has a mounting groove on the side away from the silicone mounting block, and a fixing airbag is installed on one side of the inner cavity of each mounting groove. The end of the fixing airbag away from the mounting groove is connected to the mounting sleeve through a tube head.

[0010] Preferably, the extrusion limiting block has an elongated groove on the side away from the mounting sleeve, and the elongated groove has a cross-shaped structure, and the mounting sleeve has a circular hole in the middle that communicates with the tube head.

[0011] Preferably, a fixed bottom frame is installed at the bottom of the workbench, an installation spring is fitted onto the outside of the movable top rod, and an elongated hole is formed between the movable top rod, the connector, and the silicone top.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a limiting interlocking block that can simultaneously accommodate horizontally assembled limiting interlocking slots and vertically stacked horizontal interlocking openings. The same connector satisfies two masonry methods, reducing the types of accessories, simplifying the construction process, and significantly improving on-site assembly and stacking efficiency. Furthermore, the interlocking block, with its four rectangular limiting interlocking slots and upper and lower cross-shaped horizontal interlocking openings, achieves bidirectional mechanical limiting of bricks in both horizontal and vertical directions, effectively preventing brick displacement and misalignment during construction, ensuring the flatness and structural regularity of the wall. The mechanical interlocking and locking of the limiting interlocking block structurally strengthens the connection strength between horizontal assembly and vertical stacking of bricks, improving the overall impact resistance, sway resistance, and seismic performance of the wall. A grid-shaped interconnected through-hole forms a continuous channel, allowing mortar to be injected internally. After the mortar solidifies, it forms an integral reinforced skeleton inside the brick body, upgrading from traditional surface bonding to an internal skeleton plus external interlocking composite reinforcement, effectively preventing wall hollowing, cracking, and loosening. This invention integrates two modes: static extrusion testing and gravity impact testing. First, an electric push rod is used to achieve stable extrusion testing. After the electromagnetic adsorption is disconnected, the spring tension is used to achieve free fall impact testing, perfectly simulating the actual working conditions of aerated concrete blocks under pressure and impact. The detection dimensions are more comprehensive. Automatic air pressure dust removal is used to eliminate impurities from interfering with the detection. The airflow generated by the extrusion airbag is blown out from the detection slot through a porous air channel, automatically blowing away dust and debris on the top surface of the brick, keeping the detection contact surface clean, and eliminating the interference of impurities on the humidity intensity detection data from the source. This invention uses a storage frame, connecting hose, and porous air duct to deliver water under high pressure. Combined with an arc-shaped opening for uniform water distribution, it can accurately simulate humid conditions. The high-pressure water seepage can quickly penetrate the brick body. With the bottom sensing structure, it can accurately identify defects such as gaps, voids, and insufficient density inside the brick body. The transverse and longitudinal blocking strips in the detection groove form a grid contact structure, which increases and homogenizes the contact area with the brick body, avoids local stress concentration, ensures uniform pressure, and makes the detection data more consistent with the actual compressive strength. This invention utilizes multi-dimensional adaptive limiting to adapt to all specifications of aerated concrete blocks. The limiting mechanism, through a combination of arc-shaped slide rails, mounting spheres, and mounting sleeves, achieves large-range coarse adjustment and small-angle fine adjustment, adapting to aerated concrete blocks of different sizes and shapes. The cross-shaped groove accommodates irregularly shaped brick contours, making the equipment highly versatile. It adapts to brick-fitting structures, providing flexible multi-point clamping without damaging the brick body. By using airbag pressure transmission and pressure sensors to collect clamping pressure in real time, it can detect external depressions and excessive internal voids in the brick body in advance, screening out unqualified brick bodies, reducing invalid detection, and improving overall detection efficiency. This invention utilizes a multi-set silicone cap with a pressure controller and humidity sensor to collect real-time data on the stress and local humidity of the brick's bottom. Through multi-point comprehensive analysis, the strength assessment is more scientific and accurate. The movable top rod and elongated holes form an airflow channel that automatically blows away residual moisture from gaps. Under pressure, negative pressure is created to absorb seepage water and fine debris. The cotton rings can be periodically replaced to absorb impurities, automatically cleaning the testing station and preventing residual interference with multiple batches of testing. When the brick is pressed and sinks, it triggers the expansion of annular airbags, forming a surrounding protective barrier. This not only assists in limiting and preventing displacement but also blocks flying debris after the brick breaks, protecting equipment components and improving operational safety. Attached Figure Description

[0013] Figure 1 A schematic diagram of an aerated concrete block structure is provided for an embodiment of the present invention; Figure 2 This is a structural diagram of the appearance of the detection device provided in an embodiment of the present invention; Figure 3 This is a horizontal cross-sectional view of the working frame and worktable provided in an embodiment of the present invention; Figure 4 This is a horizontal cross-sectional view of the detection block provided in an embodiment of the present invention; Figure 5 This is a structural diagram of the assembly of the transverse and longitudinal blocking strips provided in an embodiment of the present invention; Figure 6 This is a structural diagram of the movable plate and mounting sleeve provided in an embodiment of the present invention; Figure 7 This is a cross-sectional structural diagram of the fixed slide provided in an embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of the extrusion limiting block provided in an embodiment of the present invention; Figure 9 This is a top view of the fixed slide rail and the double-headed electric telescopic rod provided in an embodiment of the present invention; Figure 10 This is a cross-sectional structural diagram of the connector and movable push rod provided in an embodiment of the present invention.

[0014] In the diagram: 1. Brick body; 101. Limiting and fitting groove; 102. Connecting through hole; 103. Limiting sleeve; 104. Horizontal fitting opening; 105. Limiting and fitting block; 2. Work frame; 3. Workbench; 4. Placement board; 5. Detection mechanism; 501. Multi-section electric push rod; 502. Detection block; 503. Detection slot; 504. Mounting protrusion; 505. Guide extrusion mechanism; 5051. Moving tube; 5052. Moving slider; 5053. Fixed guide rail; 5054. Pull spring; 5055. Extrusion airbag; 506. Rubber hose; 507. Limiting electromagnetic block; 508. Docking frame head; 509. Connecting hose; 510. Multi-hole air passage; 511. Transverse blocking strip; 512. Longitudinal blocking strip; 513. Arc-shaped opening; 6. Limiting mechanism; 601. Moving plate; 602. Moving mechanism; 6021. Moving top rod; 6022. Rubber mounting block; 6023. Connecting pipe; 6024. Mounting arc block; 6025. Arc-shaped slide rail; 6026. Moving slide rod; 6027. Compressed air bag; 6028. Fixed slide rail; 6029. Double-headed electric telescopic rod; 603. Porous air groove; 604. Silicone mounting block; 605. Mounting ball; 606. Extrusion limiting block; 607. Mounting sleeve; 608. Mounting slot; 609. Fixed air bag; 610. Long slot; 611. Pressure sensor; 7. Placement limiting mechanism; 701. Expansion limiting mechanism; 7011. Annular airbag; 7012. Movable plate; 7013. Fixed spring; 7014. Mounting ring frame; 7015. Mounting airbag; 702. Fixed base frame; 703. Connecting joint; 704. Mounting spring; 705. Movable top rod; 706. Pressure controller; 707. Silicone sleeve; 708. Elongated hole; 709. Silicone top head; 710. Humidity sensor; 711. Arc-shaped mounting port; 8. Storage frame. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0016] Please see Figure 1 The present invention provides a technical solution: an aerated concrete block, comprising a block body 1 and a limiting fitting block 105, wherein the block body 1 has a limiting fitting groove 101 of the same size in the center of its four sides, and the top and bottom of the block body 1 are provided with horizontal fitting openings 104 in a cross structure, and the ports around the horizontal fitting openings 104 are connected to the inside of the limiting fitting grooves 101. The inner cavity of the brick body 1 has several connecting through holes 102, which are connected internally, and the connecting through holes 102 have a grid-like structure when viewed from above.

[0017] Both the limiting fitting slot 101 and the limiting fitting block 105 are rectangular structures. When several bricks 1 are assembled horizontally, the limiting fitting block 105 is fitted into the cavity between the mating limiting fitting slots 101. The horizontal fitting opening 104 is rectangular in cross-section. When several bricks 1 are stacked, the limiting fitting block 105 is moved into the cavity of the horizontal fitting opening 104 so that the limiting fitting block 105 is fitted into the interior of the horizontal fitting opening 104.

[0018] The dimensions at the port of the through hole 102 are all larger than the dimensions of the inner cavity of the through hole 102, and a limit sleeve 103 is provided at the port of the inner cavity of the through hole 102. The specific implementation method is as follows: When stacking bricks 1 during use, after several bricks 1 are stacked, the moving limiting fitting block 105 is fitted into the inner cavity of the horizontal fitting opening 104. The limiting fitting block 105 increases the firmness of the stacked bricks 1. When using horizontal assembly installation, the limiting fitting block 105 is fitted into the inner cavity of the limiting fitting slot 101. After fixing, the overall firmness of the horizontal assembly is improved. Before horizontal assembly, the limiting sleeve 103 is first moved and fitted into one end of the inner cavity of the connecting through hole 102 on one side. When another brick 1 is moved, the corresponding connecting through hole is aligned. One end of 102 is fixed to the limiting sleeve 103, which can not only further improve the firmness during assembly, but also inject mortar into the cavity of the connecting through hole 102. After the mortar solidifies, it makes the assembled brick 1 more firm. Moreover, the above operations can be carried out with mortar according to the specific construction needs. The structure of the connecting through hole 102 with a large port and a small inner cavity, combined with the limiting sleeve, can realize the quick and accurate alignment and insertion of the connecting through holes 102 of adjacent bricks 1, which plays a positioning and limiting role. At the same time, it seals the connecting gap of the connecting through hole 102, prevents mortar leakage, ensures the density of the injection, and further improves the stability of assembly. Example 2

[0019] Please see Figures 1-5 The present invention provides a technical solution: a strength testing device for aerated concrete blocks, including a workbench 3, a testing mechanism 5, a limiting mechanism 6 and a placement limiting mechanism 7. A working frame 2 is installed on the top of the workbench 3, and a placement plate 4 for placing aerated concrete blocks is installed on both sides of the workbench 3. A frame plate is installed on the front side of the working frame 2, and a control panel is installed on one side of the working frame 2. The detection mechanism 5 includes a detection block 502 set at the upper end of the inner cavity of the working frame 2. The bottom end of the detection block 502 is provided with a detection slot 503. Several transverse blocking strips 511 are equidistantly installed in the inner cavity of the detection slot 503. Several longitudinal blocking strips 512 are equidistantly installed between the transverse blocking strips 511. The bottom ends of the transverse blocking strips 511 and the longitudinal blocking strips 512 are provided with arc-shaped openings 513. The inner cavity of the detection block 502 is provided with a porous air channel 510. The channel at the bottom end of the porous air channel 510 extends into the inside of the detection slot 503. The inner cavity of the working frame 2 is provided with guide extrusion mechanism 505 on both sides. The bottom of the detection block 502 is equipped with mounting protrusions 504. During the detection process, the mounting protrusions 504 are fitted into the top of the inner cavity of the limiting fitting groove 101. The top of the working frame 2 is equipped with multiple electric push rods 501, and the bottom of the multiple electric push rods 501 is equipped with limiting electromagnetic blocks 507. The top of the detection block 502 is equipped with a docking frame head 508, and the limiting electromagnetic block 507 docks with the inner cavity of the docking frame head 508. A storage box 8 for storing liquid is installed on one side of the top of the inner cavity of the working frame 2. The guiding and squeezing mechanism 505 includes a fixed guide rail 5053, and fixed guide rails 5053 are installed on both sides of the inner cavity of the working frame 2. A squeezing air bladder 5055 is installed at the bottom of the inner cavity of the fixed guide rail 5053, and a movable slider 5052 is installed on the top of each squeezing air bladder 5055. Connection holes are opened on both sides of the detection block 502 at corresponding positions of the porous air passage 510, and movable tubes 5051 are installed on both sides of the detection block 502 at corresponding positions of the connection holes. The movable tube 5051 on the right side is connected to the detection block 502 through a multi-way solenoid valve, and a connecting hose 509 is installed on the top of the multi-way solenoid valve. The top of the connecting hose 509 is connected to the bottom of the storage box 8. Pull springs 5054 are movably installed on one side of the bottom end, and the bottom end of the pull springs 5054 is connected to the bottom end of the inner cavity of the fixed guide rail 5053. The bottom end of the right squeeze airbags 5055 is equipped with an air inlet one-way valve. The upper end of the inner cavity of the detection block 502 is provided with a placement notch. The top end of the right movable slider 5052 is equipped with a rubber hose 506, and the top end of the rubber hose 506 passes through the top end of the right fixed guide rail 5053 and is connected to the upper end of one side of the storage frame 8. The inner cavity of the movable slider 5052 is provided with multiple air holes. The multi-section electric push rod 501 and the limit electromagnetic block 507 are electrically connected to the control panel. The left movable tube 5051 is connected to the detection block 502 through the air supply one-way valve. The bottom end of the left squeeze airbag 5055 is equipped with an air inlet one-way valve. The specific implementation method is as follows: When performing strength testing by compression, the multi-section electric push rod 501 is activated to drive the limiting electromagnetic block 507 and the docking frame head 508 to move downwards, which in turn drives the detection block 502 to move downwards. When the detection block 502 moves downwards, the moving slider 5052 is driven to slide inside the fixed guide rail 5053 through the moving tubes 5051 on both sides. When the moving slider 5052 moves downwards, it compresses the compression airbag 5055, increasing the guidance and stability during the movement. When the detection block 502 moves downwards, it contacts the upper end of the fixed brick 1 for compression testing. When impact is used... During the strength test, the test block 502 is moved to the upper end of the inner cavity of the working frame 2, causing the pull spring 5054 to be in a stretched state, and the power supply of the limit electromagnetic block 507 is disconnected, causing the limit electromagnetic block 507 to lose its magnetism and the docking frame head 508 to lose its constraint. The pull spring 5054 in a stretched state drives the moving tube 5051 and the test block 502 to move downward, causing the test block 502 to move downward and impact, contacting the top of the fixed brick 1 to achieve the impact test operation. In addition, when performing the impact test, the pull spring 5054 with greater elasticity can be replaced, or multiple pull springs 5054 can be installed. When the sliding block 5052 moves downward to compress the compression airbag 5055, the air pressure inside the left compression airbag 5055 is transported to the porous air channel 510 through the moving tube 5051. The porous air channel 510 transports the air downward to form an airflow, and the airflow contacts the top of the brick 1 to clean it. This ensures that no impurities or dust accumulate on the top of the brick 1 during the testing process, which could affect the final result when the strength test is conducted under humidity conditions. When testing brick 1 while it contains moisture, the right-side sliding block 5052 compresses the right-side air bladder 5055, sending gas from inside the air bladder 5055 into the rubber hose 506. This causes the rubber hose 506 to expand, creating high pressure at the upper end of the storage frame 8's inner cavity. When the detection block 502 moves downwards and its bottom surface contacts the top of brick 1, the surrounding mounting protrusions 504 engage with the limiting grooves 101, creating a relatively sealed top of brick 1. For regular testing of brick 1, the mounting protrusions 504 can be removed directly. When the bottom surface of the detection block 502 contacts the top of brick 1, the bottom surfaces of the transverse and longitudinal blocking strips 511 and 512 simultaneously contact and compress the top surface of brick 1, increasing the contact area during testing. This prevents uneven contact due to the detection grooves 503 at the bottom of brick 1, which could affect subsequent testing. To ensure the accuracy of the measured data, after contact is completed, the working end of the multi-way solenoid valve is activated, making the interior of the storage frame 8 connected to the interior of the porous air channel 510. At this time, the gas inside the expanded rubber hose 506 is transported to the interior of the storage frame 8, and the liquid inside the storage frame 8 is transported to the interior of the porous air channel 510. The liquid is then transported to the interior of the test slot 503 through the porous air channel 510, so that the liquid comes into contact with the top of the brick 1. At the same time, under the action of high pressure, the liquid passes through the arc-shaped opening 513 and comes into contact with the top of the brick 1 evenly, allowing the liquid to seep into the interior of the brick 1. At the same time, the air pressure increases the efficiency of liquid penetration into the interior of the brick 1. After penetration is completed, the brick 1 containing moisture is tested. If there are gaps or voids in the interior of the brick 1 and it is not up to standard, it will quickly penetrate the brick 1 under high pressure and come into contact with the top of the silicone head 709 at the corresponding position. This can meet the requirements of brick 1 strength testing in different forms and under different conditions. Example 3

[0020] Please see Figure 3 , Figures 6-9 The present invention provides a technical solution: the limiting mechanism 6 includes a moving mechanism 602, the moving mechanism 602 is disposed at the bottom of both sides of the inner cavity of the working frame 2, a moving plate 601 is provided on one side of the top of the moving mechanism 602, a plurality of silicone mounting blocks 604 are equidistantly installed on the opposite side of the moving plates 601, a mounting ball 605 is installed on the side of the silicone mounting block 604 away from the moving plate 601, a mounting sleeve 607 is movably installed on the outside of the mounting ball 605, a compression limiting block 606 is installed on the end of the mounting sleeve 607 away from the silicone mounting block 604, a plurality of rubber friction blocks are equidistantly installed on one side of the inner cavity of the mounting sleeve 607, and the outer periphery of the mounting ball 605 is roughened. On the side of the mounting ball 605 away from the silicone mounting block 604, there is a mounting groove 608. On the inner side of the mounting groove 608, there is a fixing airbag 609. The end of the fixing airbag 609 away from the mounting groove 608 is connected to the mounting sleeve 607 through a tube head. The side of the compression limiting block 606 away from the mounting sleeve 607 has a long groove 610 with a cross-shaped structure. The mounting sleeve 607 has a round hole in the middle that communicates with the tube head. The inner cavity of the movable plate 601 is provided with a porous air groove 603, and the middle of the silicone mounting block 604 is provided with a connecting elongated hole. The two sides of the connecting elongated hole are respectively connected to the porous air groove 603 and the inner cavity of the fixed airbag 609. A pressure sensor 611 is installed at the top of the inner cavity of the mounting slot 608. The moving mechanism 602 includes two fixed slides 6028, which are respectively installed at the bottom ends of the inner cavity of the working frame 2. A compressed air bag 6027 is installed on the opposite side of the inner cavity of each fixed slide 6028. A connecting pipe 6023 is installed on the top end of each fixed slide 6028, and the top end of the connecting pipe 6023 is connected to one side of the moving plate 601 and maintains communication with the porous air groove 603. A moving slide rod 6026 is installed on the end of each compressed air bag 6027 away from the fixed slide 6028. A connecting frame rod is installed on the rear side of the bottom end of the moving slide rod 6026. A long slot is opened on the rear side of each fixed slide 6028. A double-headed electric telescopic rod 6029 is installed at the lower middle rear end of the inner cavity of the working frame 2, and the telescopic end of the double-headed electric telescopic rod 6029 is connected to... The connecting rod is connected to the rear side, and an arc-shaped slide rail 6025 is installed on one side of the top of the sliding rod 6026. An installation arc block 6024 is slidably installed in the inner cavity of the arc-shaped slide rail 6025. A rubber layer is installed around the outer periphery of the installation arc block 6024. Friction strips are installed at the top and bottom of the inner cavity of the arc-shaped slide rail 6025. A moving top rod 6021 is installed at the end of the installation arc block 6024 away from the arc-shaped slide rail 6025. A rubber mounting block 6022 is installed at the end of the moving top rod 6021 away from the installation arc block 6024. One end of the rubber mounting block 6022 is connected to the moving plate 601. The double-headed electric telescopic rod 6029 and the pressure sensor 611 are electrically connected to the control panel. The hardness of the rubber mounting block 6022 is higher than that of the silicone mounting block 604. The specific implementation method is as follows: When the tested brick 1 is fixed in a limited position, the double-headed electric telescopic rod 6029 is activated, which drives the movable slide rods 6026 on both sides to slide inside the fixed slide rail 6028 through the connecting frame rods on both sides. This drives the arc-shaped slide rail 6025 and the movable top rod 6021 to move. The movable top rod 6021 drives the movable plates 601 on both sides to move to the opposite side, and drives the mounting ball 605 and the compression limiting block 606 to move, so that the compression limiting block 606 contacts and compresses the outside of the brick 1, fixing it in place. When the compression limiting block 606 is in contact with the inside of the limiting fitting groove 101, resistance will be generated because the compression limiting blocks 606 at other positions are already in contact with the outside of the brick 1. When the moving plate 601 continues to move, it will compress the silicone mounting block 604 that first contacts the brick 1. Then the compression limiting block 606 located at the limiting fitting groove 101 will continue to move a bit, so that the compression limiting block 606 contacts the inner cavity of the limiting fitting groove 101, realizing multi-point contact compression and increasing the firmness during fixing. When the movable slide rod 6026 slides inside the fixed slide rail 6028, it compresses the compressed air bladder 6027. The gas inside the compressed air bladder 6027 is then transported through the connecting pipe 6023 to the porous air groove 603 and finally to the fixed air bladder 609. The gas is then ejected through the pipe head and round hole, causing the ejected air pressure to contact the outside of the brick 1, thus treating the area to be fixed on the outside of the brick 1. When the compression limiting block 606 has compressed and limited the position, and the movable slide rod 6026 and the movable top rod 6021 continue to move, they compress the rubber mounting block 6022. The brick 1 is deformed by compression, and the compression airbag 6027 is squeezed to deliver gas to the fixed airbag 609. If the internal void of the brick 1 is qualified and there are no gaps or external depressions, the gas in the cavity of the fixed airbag 609 cannot flow out quickly. As a result, the fixed airbag 609 expands and contacts the pressure sensor 611 to squeeze. The pressure value generated during the squeezing is fed back to the control panel for analysis. The brick 1 is preliminarily tested at multiple different positions before the strength test to avoid problems with the brick 1 that could lead to deviations in the final test results. When installing and fixing bricks 1 of different sizes and models, the large-scale movement adjustment is first made according to the fixed position. The arc-shaped slide rail 6025 slides outside the installation arc block 6024, and drives the extrusion limit block 606 to move. After the large-scale movement is completed, the extrusion limit block 606 is moved to drive the installation sleeve 607 to rotate outside the installation ball 605, thereby adjusting the position of the fixed position in the small direction. Through multi-angle adjustment, the firmness and applicability of the limit fixation are improved. Example 4

[0021] Please see Figure 3 , Figure 7 and Figure 10The present invention provides a technical solution: the placement limiting mechanism 7 includes an expansion limiting mechanism 701, and the expansion limiting mechanism 701 is disposed in the middle of the worktable 3. A plurality of movable push rods 705 are equidistantly arranged in the middle of the worktable 3. The top of each movable push rod 705 is equipped with a connector 703, and the top of each connector 703 is equipped with a silicone top 709. The bottom of each movable push rod 705 is equipped with a silicone sleeve 707. The middle of the worktable 3 is provided with a mounting round opening at the relative position of the movable push rods 705. The bottom of each movable push rod 705 is equipped with a pressure controller 706. The top of each silicone top 709 is provided with an arc-shaped mounting opening 711, and the inner cavity of each arc-shaped mounting opening 711 is equipped with a humidity sensor 710, and the inner cavity of the arc-shaped mounting opening 711 is equipped with an absorption layer. A fixed bottom frame 702 is installed at the bottom of the workbench 3. A mounting spring 704 is fitted onto the outside of the movable top rod 705. An elongated hole 708 is opened between the movable top rod 705, the connector 703 and the silicone top 709. The top of the elongated hole 708 is shaped like a tree stump. A cotton ring is installed in the inner cavity of the top of the elongated hole 708. Channels are opened on both sides of the connector 703 at the corresponding positions horizontal to the elongated hole 708. The expansion limiting mechanism 701 includes a mounting ring frame 7014, and annular airbags 7011 are installed around the inner cavity of the mounting ring frame 7014. The bottom end of the mounting ring frame 7014 is connected to the top end of the worktable 3 through a fixed tube. A fixed bottom frame 702 is installed at the bottom end of the worktable 3. A movable plate 7012 is movably arranged in the inner cavity of the fixed bottom frame 702. Several mounting airbags 7015 are installed at the bottom end of the movable plate 7012. A rubber air tube is installed on one side of the bottom end of the mounting airbag 7015. The top end of the rubber air tube passes through the worktable 3 and is connected to the fixed tube. A connecting air hole is opened between the top end of the fixed tube and the bottom end of the mounting ring frame 7014. Fixed springs 7013 are installed around the bottom end of the movable plate 7012. A convex block is installed in the middle of the bottom end of the fixed bottom frame 702. The pressure controller 706 and the humidity sensor 710 are electrically connected to the control panel. The specific implementation method is as follows: When testing the strength of brick 1, brick 1 is placed on the upper part of workbench 3, so that the bottom surface of brick 1 contacts the corresponding silicone mandrel 709. The weight of brick 1 itself causes the connector 703 and movable push rod 705 to move downwards. During this downward movement, the mounting spring 704 is compressed. Later, the compressed mounting spring 704 drives the movable push rod 705 to reset, and causes the silicone sleeve 707 to move downwards and contact the top of the movable plate 7012. At this time, the weight of brick 1 itself will not compress the silicone sleeve 707. When testing the strength of brick 1 by compression, multiple silicone mandrels 709 and connectors 703 are compressed simultaneously, thus compressing the movable push rod 705. The movable push rod 705 compresses the silicone sleeve 707. Simultaneously, the compression of the silicone sleeve 707 affects the pressure controller. During the strength test, the pressure controller 706 at different positions monitors the stress on different parts of the brick 1, ensuring more comprehensive data and higher accuracy through comprehensive analysis. When the brick 1 is not compressed, the silicone head 709 will not deform due to high pressure. When the silicone sleeve 707 is compressed, airflow is blown into the arc-shaped mounting port 711 through the elongated hole 708, so that the airflow contacts the absorption layer inside the arc-shaped mounting port 711. Due to insufficient pressure during the placement of the brick 1, the bottom surface of the brick 1 will not form a complete fit with the silicone head 709. Through the gap between the brick 1 and the silicone head 709, the residual moisture in the absorption layer and the arc-shaped mounting port 711 is blown away for cleaning, avoiding errors in the data during subsequent testing. When the silicone cap 709 is deformed under pressure, it compresses the top of the elongated hole 708, sealing it. During the testing of the internal voids and humidity levels of the brick 1, if the voids are too large, liquid will seep through and drip into the corresponding arc-shaped mounting opening 711, where it is absorbed by the absorption layer. The humidity sensor 710 monitors this process and sends the data back to the control panel for analysis. Once the strength test is complete, the pressure on the top of the brick 1 is released, and the compressed mounting spring 704 moves the movable top rod 705 upwards, which is then reset by the elasticity of the silicone cap 709. This allows the top of the elongated hole 708 to be unobstructed. When the compressed silicone sleeve 707 recovers, it absorbs external gas through the elongated hole 708, creating a negative pressure inside the arc-shaped mounting port 711. This absorbs the received liquid. When the liquid reaches the horizontal position at the top of the elongated hole 708, it is absorbed by the cotton ring. The cotton ring can be periodically replaced by opening the channel later. Alternatively, if the brick 1 breaks during strength testing, it can absorb small impurities inside the arc-shaped mounting port 711. During absorption, the cotton ring's adhesion helps to adhere to the small impurities. Periodic processing is then necessary to ensure the accuracy and stability of the testing end during use. When the movable top rod 705 moves downward under pressure, it drives the movable plate 7012 to move downward. The movable plate 7012 compresses the mounting airbag 7015. When the mounting airbag 7015 is compressed, the gas inside the mounting airbag 7015 is delivered to the annular airbag 7011, causing the annular airbag 7011 to expand. After expansion, it contacts and compresses the brick 1 to fix it. At the same time, areas of the brick 1 that are not in contact with the brick 1 will not move downward. A blocking area is formed around the brick 1 after it moves downward. When the compression test is performed, the position of the area is limited to ensure that it does not shift. In conjunction with the annular airbag 7011, it can limit and fix bricks 1 of different sizes. When the brick 1 breaks during the strength test, the annular airbag 7011 and the movable top rod 705 and the connector 703 can also block the impact force generated when the brick breaks, preventing it from splashing around the working area and damaging other working ends.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aerated concrete block, comprising a block body (1) and a limiting fitting block (105), characterized in that: The brick body (1) has a limiting fitting groove (101) of the same size in the center of its four sides. The top and bottom of the brick body (1) are provided with horizontal fitting openings (104) in a cross structure. The ports around the horizontal fitting openings (104) are connected to the inside of the limiting fitting grooves (101). The inner cavity of the brick body (1) is provided with a number of connecting through holes (102), the interior of the number of connecting through holes (102) is in a connected state, and the connecting through holes (102) have a grid-shaped structure when viewed from above.

2. An aerated concrete block according to claim 1, characterized in that: The limiting fitting slot (101) and the limiting fitting block (105) are both rectangular in structure, and the horizontal fitting port (104) has a rectangular cross-section.

3. An aerated concrete block according to claim 1, characterized in that: The dimensions at the port of the connecting through hole (102) are all larger than the dimensions of the inner cavity of the connecting through hole (102), and a limit sleeve (103) is provided at the port of the inner cavity of the connecting through hole (102).

4. A strength testing device for aerated concrete blocks, characterized in that: The strength testing device is applicable to an aerated concrete block according to any one of claims 1-3, and includes a workbench (3), a testing mechanism (5), a limiting mechanism (6) and a placement limiting mechanism (7), wherein a working frame (2) is installed on the top of the workbench (3); The detection mechanism (5) includes a detection block (502) set at the upper end of the inner cavity of the working frame (2). The bottom end of the detection block (502) is provided with a detection slot (503). A number of transverse blocking strips (511) are installed at equal intervals in the inner cavity of the detection slot (503). A number of longitudinal blocking strips (512) are installed at equal intervals between the transverse blocking strips (511). The bottom ends of the transverse blocking strips (511) and the longitudinal blocking strips (512) are provided with arc-shaped openings (513). The inner cavity of the detection block (502) is provided with a porous air channel (510). The holes at the bottom end of the porous air channel (510) extend into the detection slot (503). The limiting mechanism (6) includes a moving mechanism (602). The moving mechanism (602) is located at the bottom of both sides of the inner cavity of the working frame (2). A moving plate (601) is provided on one side of the top of the moving mechanism (602). Several silicone mounting blocks (604) are installed at equal intervals on opposite sides of the moving plates (601). A mounting ball (605) is installed on the side of the silicone mounting block (604) away from the moving plate (601). A mounting sleeve (607) is movably installed on the outside of the mounting ball (605). A compression limiting block (606) is installed on the end of the mounting sleeve (607) away from the silicone mounting block (604). The placement limiting mechanism (7) includes an expansion limiting mechanism (701), and the expansion limiting mechanism (701) is located in the middle of the worktable (3). Several movable push rods (705) are equidistantly arranged in the middle of the worktable (3). Each movable push rod (705) has a connector (703) installed at its top end. Each connector (703) has a silicone top head (709) installed at its top end. Each movable push rod (705) has a silicone sleeve (707) installed at its bottom end.

5. The strength testing device for aerated concrete blocks according to claim 4, characterized in that: The working frame (2) is provided with guide extrusion mechanism (505) on both sides of the inner cavity. The detection block (502) is provided with mounting protrusion (504) around the bottom. During the detection process, the mounting protrusion (504) is fitted into the top of the inner cavity of the limiting fitting groove (101).

6. The strength testing device for aerated concrete blocks according to claim 4, characterized in that: The mounting ball (605) has a mounting slot (608) on the side away from the silicone mounting block (604). A fixing airbag (609) is installed on one side of the inner cavity of the mounting slot (608). The end of the fixing airbag (609) away from the mounting slot (608) is connected to the mounting sleeve (607) through a tube head.

7. The strength testing device for aerated concrete blocks according to claim 6, characterized in that: The compression limiting block (606) has a long slot (610) on the side away from the mounting sleeve (607), and the long slot (610) has a cross-shaped structure. The mounting sleeve (607) has a round hole in the middle that communicates with the pipe head.

8. The strength testing device for aerated concrete blocks according to claim 4, characterized in that: The bottom of the workbench (3) is fitted with a fixed bottom frame (702), and the movable top rod (705) is fitted with an installation spring (704). An elongated hole (708) is provided between the movable top rod (705), the connector (703) and the silicone top (709).

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