Self-repairing microbial cement-based fabricated wallboard and in-situ crack repairing method thereof

Abstract

The invention discloses a self-repairing microorganism cement-based fabricated wallboard and a crack in-situ repairing method thereof, and relates to the technical field of fabricated wallboards, the self-repairing microorganism cement-based fabricated wallboard comprises a bottom bracket, L-shaped adjusting frameworks are symmetrically arranged on the bottom bracket, microorganism cement base plates are installed on the L-shaped adjusting frameworks, telescopic plates are installed in the L-shaped adjusting frameworks, and the telescopic plates are connected with the microorganism cement base plates; the self-repairing microorganism cement-based fabricated wallboard further comprises a quick mounting, dismounting and positioning mechanism and a thickness adjusting and locking mechanism. According to the scheme, through structural design and tangibility, inevitable gravity is converted into beneficial installation auxiliary force, locking is achieved when a plate falls, the assembly procedure is greatly simplified, the installation efficiency and safety are improved, the method is a typical embodiment of pursuing efficient and convenient construction of an assembly type building, and the method is worthy of popularization and application. The flexibility of'thickness adjustment 'and the convenience of'dead weight locking' are perfectly combined.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated wall panels, and in particular to a self-repairing microbial cement-based prefabricated wall panel and an in-situ crack repair method thereof. Background Art

[0002] Microbial cement-based prefabricated wall panels are an innovative building material that combines biotechnology with modern building industrialization. Using cement as a matrix, they are embedded with specific microorganisms (such as Bacillus pasteurianus) and their nutrient sources during the prefabrication process. When stress-induced microcracks develop in the wall panels during later use, these dormant microorganisms are activated and metabolized to produce minerals such as calcium carbonate once water seeps in. This automatically fills and heals the cracks, significantly improving the durability and self-healing capabilities of the structure. Furthermore, as prefabricated components, they are standardized and factory-produced, offering advantages such as controlled quality, efficient construction, and energy conservation and environmental protection. They represent a leading edge in the development of intelligent, green, and efficient buildings.

[0003] However, existing on-site installation of some microbial cement-based prefabricated wall panels typically involves fixed installation combined with on-site secondary grouting for positioning and fixation, supplemented by multiple bolt fastenings. This process is not only cumbersome but also prone to damage to the prefabricated wall panel surface during installation.

[0004] In addition, current prefabricated wall panels have limitations in thickness adjustment during construction. The installation thickness can only be determined based on the fixed thickness of the prefabricated wall panels, and lacks on-site adjustability. When the building structure requires adjustment of the wall panel spacing or thickness, the existing technical solutions cannot achieve effective thickness adjustment, resulting in the need for dismantling and reinstallation, which not only wastes materials but also significantly increases labor costs and time costs (the rework rate increases by approximately 30-50%). This rigid installation method is inconsistent with the flexible and adaptable characteristics that prefabricated buildings should have.

[0005] Therefore, a self-repairing microbial cement-based prefabricated wall panel and an in-situ crack repair method thereof are proposed to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a self-repairing microbial cement-based prefabricated wall panel and an in-situ crack repair method thereof, so as to solve the problems in the prior art of complex installation of prefabricated wall panels and inability to adjust the spacing during the installation of the wall panels.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a self-repairing microbial cement-based prefabricated wallboard and an in-situ crack repair method thereof, comprising a base bracket, an L-shaped adjustment frame symmetrically provided on the base bracket, a microbial cement base plate mounted on the L-shaped adjustment frame, and a telescopic plate mounted in the L-shaped adjustment frame. The self-repairing microbial cement-based prefabricated wallboard also includes a quick installation and disassembly positioning mechanism and a thickness adjustment locking mechanism;

[0008] The quick installation and disassembly positioning mechanism is arranged on the L-shaped adjustment frame and the microbial cement substrate, and the quick installation and disassembly positioning mechanism is used for;

[0009] The thickness adjustment locking mechanism is arranged in the L-shaped adjustment frame, and the thickness adjustment locking mechanism is used for adjusting and locking the distance between the L-shaped adjustment frames.

[0010] Preferably, the quick installation and disassembly positioning mechanism includes a T-shaped positioning connecting block, which is symmetrically fixed on the microbial cement substrate. The L-shaped adjustment skeleton is symmetrically provided with a T-shaped slot. The T-shaped positioning connecting block consists of a square block and a connecting block, wherein the length of the connecting block is the same as the thickness of the L-shaped adjustment skeleton, and the T-shaped slot consists of a square slot and a vertical slot, wherein the size of the square slot is larger than the size of the square block in the T-shaped positioning connecting block, and the size of the connecting block in the T-shaped positioning connecting block is adapted to the size of the vertical slot of the T-shaped slot.

[0011] Preferably, the quick installation and disassembly positioning mechanism also includes a screw, and fixed blocks are rotatably installed on the outer surfaces of both ends of the screw, and the fixed blocks are fixedly installed on the L-shaped adjustment frame. A sliding plate is symmetrically and slidably installed on the L-shaped adjustment frame, and the middle part of the sliding plate is threadedly installed in the screw, and connecting plates are rotatably installed at both ends of the sliding plate. A limiting slide is rotatably installed on one end of the connecting plate away from the sliding plate, and the limiting slide is symmetrically and slidably installed on the L-shaped adjustment frame.

[0012] Preferably, the lower surface of the microbial cement substrate is symmetrically fixedly connected with a limiting plug-in block, the bottom of the L-shaped adjustment frame is symmetrically provided with a limiting groove, and the limiting plug-in block is inserted into the limiting groove.

[0013] Preferably, the thickness adjustment locking mechanism includes a linkage pressure block, a guide groove is provided at the bottom of the L-shaped adjustment frame, the linkage pressure block is slidably installed in the guide groove, a pressure plate is fixedly connected to the linkage pressure block, and the pressure plate is slidably installed on the L-shaped adjustment frame, and auxiliary plates are rotatably connected to the two ends of the pressure plate, and the auxiliary plate is rotatably connected to the locking extrusion block at one end away from the pressure plate, and the locking extrusion block is slidably installed on the L-shaped adjustment frame, and a rubber anti-slip pad is installed on the locking extrusion block near the end of the linkage pressure block for anti-slip locking of the L-shaped adjustment frame on the linkage pressure block.

[0014] Preferably, the thickness adjustment locking mechanism further comprises an adjusting bolt, which is rotatably mounted on one side of the L-shaped adjustment frame. A threaded barrel is threadedly mounted on the tooth surface of the adjusting bolt, and the end of the threaded barrel away from the adjusting bolt is fixedly mounted on the L-shaped adjustment frame.

[0015] A method for in-situ repairing cracks in a self-repairing microbial cement-based assembled wallboard, comprising:

[0016] S1, Crack detection and assessment: Carefully inspect the surface of the microbial cement substrate to identify the location, direction, and approximate width of visible cracks. Use tools such as a crack width observer or microscope to accurately measure the width, length, and depth of the cracks and record the crack morphology.

[0017] S2. Crack surface pretreatment: Use a stiff brush or low-pressure compressed air to remove dust, slurry, oil, moss, loose particles, and other debris within a width of 2-5 cm from the crack surface and both sides to ensure the crack area is clean. Use a sprayer or damp cloth to thoroughly spray clean water into the crack area and inside the crack to dissolve the pre-embedded encapsulated nutrient source, provide the moisture environment required for microbial spore germination and metabolism, and promote the penetration of dissolved nutrients carried by the water into the crack.

[0018] S3, Activate Self-Repair Function: After wetting, the crack area needs to be continuously moisturized according to environmental conditions. At the same time, the controller controls the ambient temperature of the wet environment to 20-35 degrees Celsius to maintain the moist environment inside the crack long enough to enable microorganisms to complete the critical stages of germination, reproduction, metabolism and production of sufficient calcium carbonate;

[0019] S4, Monitoring and evaluation of repair effects: Regularly observe changes in the appearance of the L-shaped adjustment frame cracks. Successful repairs will see the cracks gradually become thinner and lighter in color, and may eventually close completely or leave only thin lines. For wall panels with waterproofing requirements, water seepage tests can be performed in the later stages of the repair to evaluate the sealing effect.

[0020] Preferably, when the crack of the L-shaped adjustment frame is larger than its self-repairing ability, the microbial cement substrate can be quickly disassembled by a quick installation and disassembly positioning mechanism, and the damaged L-shaped adjustment frame can be repaired after the L-shaped adjustment frame is replaced without affecting its use. For smaller cracks, the repair can be directly carried out by cleaning and moistening.

[0021] Compared with the prior art, the self-repairing microbial cement-based prefabricated wallboard and the in-situ crack repair method provided by the present invention have the following beneficial effects:

[0022] 1. This solution uses a T-shaped positioning connection block and a T-slot structural design. Installers only need to accurately lift and place the wall panels onto the skeleton slide rails with adjusted thickness. There is no need to use additional bolts, clamps, or perform complex locking operations. The wall panels' own weight automatically completes the "locking" action, which not only reduces the number of steps and speeds up the process: eliminating the special locking steps, significantly reducing the installation time of each wall panel, greatly improving overall construction efficiency. This is especially advantageous when constructing large-scale walls. In addition, the technical requirements for installers are relatively low, reducing the difficulty and risk of performing precise locking operations at high altitudes or in complex locations.

[0023] 2. This solution rotates the screw. By rotating the screw clockwise, the threaded sliding plate can be driven to move downward along the L-shaped adjustment frame. At this time, the downward movement of the sliding plate will drive the connecting plate to push the limit slide to one side of the T-slot, such as Figure 7 As shown, when the screw rotates and drives the limiting slide to move to the upper surface of the T-shaped positioning connection block, the mutual extrusion between the limiting slide and the T-shaped positioning connection block can prevent the T-shaped positioning connection block from being firmly installed in the T-slot, thereby reducing the shaking of the T-shaped positioning connection block in the T-slot, avoiding the shaking problem of the microbial cement substrate during installation in the L-shaped adjustment frame, increasing the speed of building installation and reducing the shaking problem caused by the modular installation gap.

[0024] 3. This solution utilizes the downward pressure generated by the weight of the microbial cement substrate. This pressure automatically eliminates any deviation or tilt caused by adjusting the thickness of the L-shaped adjustment frame, reducing gaps caused by manufacturing tolerances, frame adjustment errors, or minor installation deviations. The positive pressure generated by the weight of the microbial cement substrate is directly converted into static friction between the contact surfaces. This friction is the primary initial resistance to horizontal displacement and vibration, achieving a preliminary "locking" effect.

[0025] 4. This solution adopts the adjustable spacing design between L-shaped adjustment frames, which not only realizes the adjustment of the thickness of the wall panels, but also changes the sound insulation and thermal insulation of the L-shaped adjustment frames by adjusting the internal spacing of the L-shaped adjustment frames. By increasing the internal spacing between the L-shaped adjustment frames, the internal cavity provides a concealed passage for water and electricity pipelines, ventilation ducts, etc., avoiding the destructive operation of grooving and burying wires in traditional walls. The design of separating pipelines from wall structures not only simplifies the installation process, but also facilitates later maintenance and replacement, greatly reducing maintenance costs. At the same time, filling the L-shaped adjustment frame cavity with sound insulation material can effectively increase the sound insulation of the wall.

[0026] 5. Through structural design and ingenuity, this solution transforms the inevitable force of gravity into a beneficial auxiliary force for installation, achieving "locking as soon as the plate is dropped", greatly simplifying the assembly process and improving installation efficiency and safety. It is a typical embodiment of the pursuit of efficient and convenient construction in prefabricated buildings. It perfectly combines the flexibility of "thickness adjustment" and the convenience of "self-weight locking". BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the structural connection relationship of the quick installation and disassembly positioning mechanism of the present invention;

[0030] Figure 4 This is a schematic diagram of the structural connection relationship of the thickness adjustment locking mechanism of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0032] Figure 6 This is an auxiliary schematic diagram of the structural connection relationship of the quick installation and disassembly positioning mechanism of the present invention;

[0033] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle.

[0034] In the picture:

[0035] 1. Bottom bracket; 11. L-shaped adjustment frame; 12. Microbial cement base plate; 13. Telescopic plate;

[0036] 2. Quick installation and disassembly positioning mechanism; 21. T-shaped positioning connecting block; 22. T-shaped slot; 23. Screw; 24. Fixed block; 25. Sliding plate; 26. Connecting plate; 27. Limiting slide; 28. Limiting plug; 29. ​​Limiting slot;

[0037] 3. Thickness adjustment locking mechanism; 31. Linkage pressure block; 32. Pressure plate; 33. Auxiliary plate; 34. Locking extrusion block; 35. Adjusting bolt; 36. Threaded barrel; 37. Guide groove. DETAILED DESCRIPTION

[0038] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0040] Example 1, please refer to Figures 1 to 7 As shown:

[0041] To solve the problems mentioned in the technical solution, the embodiment of the present application provides a self-repairing microbial cement-based prefabricated wallboard and an in-situ crack repair method thereof, comprising a bottom bracket 1, an L-shaped adjustment frame 11 symmetrically arranged on the bottom bracket 1, a microbial cement base plate 12 mounted on the L-shaped adjustment frame 11, and a telescopic plate 13 mounted in the L-shaped adjustment frame 11. A self-repairing microbial cement-based prefabricated wallboard also includes a quick installation and disassembly positioning mechanism 2 and a thickness adjustment locking mechanism 3;

[0042] The quick installation and disassembly positioning mechanism 2 is provided on the L-shaped adjustment frame 11 and the microbial cement substrate 12. The quick installation and disassembly positioning mechanism 2 is used for:

[0043] The thickness adjustment locking mechanism 3 is provided in the L-shaped adjustment frame 11 , and the thickness adjustment locking mechanism 3 is used for adjusting and locking the distance between the L-shaped adjustment frames 11 .

[0044] Specifically, the T-shaped positioning and connecting block 21 is symmetrically fixed on the microbial cement substrate 12, and a T-shaped slot 22 is symmetrically provided on the L-shaped adjustment frame 11. The T-shaped positioning and connecting block 21 consists of a square block and a connecting block, wherein the length of the connecting block is the same as the thickness of the L-shaped adjustment frame 11, and the T-shaped slot 22 consists of a square slot and a vertical slot, wherein the size of the square slot is larger than the size of the square block in the T-shaped positioning and connecting block 21, and the size of the connecting block in the T-shaped positioning and connecting block 21 is adapted to the size of the vertical slot of the T-shaped slot 22.

[0045] Among them, such as Figure 3As shown, when the microbial cement substrate 12 is installed with the L-shaped adjustment frame 11, it is only necessary to align the T-shaped positioning connection block 21 symmetrically arranged on the microbial cement substrate 12 with the square groove above the T-shaped groove 22 and insert the T-shaped positioning connection block 21 into the square groove of the T-shaped groove 22. After that, the microbial cement substrate 12 is slowly moved downward again by the gravity of the microbial cement substrate 12. The microbial cement substrate 12 will drive the T-shaped positioning connection block 21 to engage with the vertical groove of the T-shaped groove 22. Since the size of the T-shaped positioning connection block 21 and the vertical groove of the T-shaped groove 22 are adapted, the microbial cement substrate 12 can be quickly installed in the L-shaped adjustment frame 11. When the microbial cement substrate 12 is disassembled again, it is only necessary to drag the microbial cement substrate 12 upward along the T-shaped groove 22 opened on the L-shaped adjustment frame 11 so that the square block in the T-shaped positioning connection block 21 coincides with the square groove and then push the microbial cement substrate 12 outward to complete the detachment of the microbial cement substrate 12.

[0046] Specifically, fixed blocks 24 are rotatably installed on the outer surfaces of both ends of the screw 23, and the fixed blocks 24 are fixedly installed on the L-shaped adjustment frame 11. A sliding plate 25 is symmetrically slidably installed on the L-shaped adjustment frame 11, and the middle part of the sliding plate 25 is threadedly installed in the screw 23. Connecting plates 26 are rotatably installed on both ends of the sliding plate 25, and a limiting slide 27 is rotatably installed on one end of the connecting plate 26 away from the sliding plate 25. The limiting slide 27 is symmetrically slidably installed on the L-shaped adjustment frame 11; the lower surface of the microbial cement substrate 12 is symmetrically fixedly connected to the limiting plug 28, and the bottom of the L-shaped adjustment frame 11 is symmetrically provided with a limiting groove 29, and the limiting plug 28 is inserted into the limiting groove 29.

[0047] Among them, such as Figure 4 As shown, in this solution, by rotating the screw 23, the screw 23 can be rotated clockwise to drive the threaded sliding plate 25 to move downward along the L-shaped adjustment frame 11. At this time, the downward movement of the sliding plate 25 will drive the connecting plate 26 to push the limiting slide plate 27 to the side of the T-shaped slot 22, as shown in FIG. Figure 7 As shown, when the screw 23 rotates to drive the limiting slide 27 to move to the upper surface of the T-shaped positioning connecting block 21, the mutual squeezing of the limiting slide 27 and the T-shaped positioning connecting block 21 can prevent the T-shaped positioning connecting block 21 from being firmly installed in the T-shaped groove 22, thereby reducing the shaking of the T-shaped positioning connecting block 21 in the T-shaped groove 22, avoiding the shaking problem of the microbial cement substrate 12 when installed in the L-shaped adjustment frame 11, increasing the speed of building installation and reducing the shaking problem caused by the modular installation gap.

[0048] Specifically, the adjusting bolt 35 is rotatably mounted on one side of the L-shaped adjusting frame 11 , a threaded barrel 36 is threadedly mounted on the tooth surface of the adjusting bolt 35 , and one end of the threaded barrel 36 away from the adjusting bolt 35 is fixedly mounted on the L-shaped adjusting frame 11 .

[0049] Before the L-shaped adjustment frame 11 is installed, the thickness spacing between the L-shaped adjustment frames 11 can be quickly adjusted according to the on-site installation requirements. Figure 3 The adjusting bolt 35 shown is located on the L-shaped adjusting skeleton 11. The mutual movement between the L-shaped adjusting skeletons 11 can be driven by the mutual threaded connection between the adjusting bolt 35 and the threaded barrel 36. At the same time, this solution is not limited to the incremental adjustment method of the adjusting bolt 35 and the threaded barrel 36. This solution can also adopt a single certain adjustment method for the distance between the L-shaped adjusting skeletons 11. The adjusting bolt 35 and the threaded barrel 36 can be used as a method for quickly adjusting the distance between the L-shaped adjusting skeletons 11 in this solution, and are not limited to the method of adjusting the distance between the L-shaped adjusting skeletons 11 by adjusting the bolt 35 and the threaded barrel 36.

[0050] Furthermore, a guide groove 37 is provided at the bottom of the L-shaped adjustment frame 11, and the linkage pressure block 31 is slidably installed in the guide groove 37. A pressure plate 32 is fixedly connected to the linkage pressure block 31, and the pressure plate 32 is slidably installed on the L-shaped adjustment frame 11. Auxiliary plates 33 are rotatably connected at both ends of the pressure plate 32. The auxiliary plate 33 is rotatably connected to a locking extrusion block 34 at one end away from the pressure plate 32. The locking extrusion block 34 is slidably installed on the L-shaped adjustment frame 11, and a rubber anti-slip pad is installed at one end of the locking extrusion block 34 close to the linkage pressure block 31, which is used to prevent the L-shaped adjustment frame 11 from slipping on the linkage pressure block 31;

[0051] Among them, when the thickness adjustment of the L-shaped adjustment frame 11 is completed, the L-shaped adjustment frame 11 and the microbial cement substrate 12 are installed. When the microbial cement substrate 12 is installed on the L-shaped adjustment frame 11, the T-shaped positioning connecting block 21 and the T-shaped groove 22 are engaged with each other. At this time, the upper surface of the linkage pressing block 31 is pressed downward by the bottom of the microbial cement substrate 12. At this time, the downward sliding action of the linkage pressing block 31 will drive the following Figure 5 The pressure plate 32 shown moves downward. At this time, the downward movement of the pressure plate 32 drives the auxiliary plate 33 to drive the locking extrusion block 34 and the linkage pressure block 31 to be squeezed, so that the L-shaped adjustment frame 11 can be automatically locked after the thickness adjustment is performed. This solution uses the weight of the installed wall panels to achieve a limited fixation of the distance between the L-shaped adjustment frames 11; the installer only needs to accurately lift the wall panels and place them on the frame slide rails with adjusted thickness, without the need for additional bolts, clamps or complicated locking operations such as screwing, welding, etc. The weight of the wall panels themselves automatically completes the "locking" action, which not only reduces the number of processes and speeds up the process: it eliminates the need for special locking steps, significantly reduces the installation time of each wall panel, and greatly improves the overall construction efficiency. The advantages are especially obvious when constructing large-area walls. In addition, the technical requirements for the installers are relatively low, reducing the difficulty and risk of performing fine locking operations at high altitudes or in complex locations.

[0052] Example 2, a method for in-situ repairing cracks in a self-repairing microbial cement-based prefabricated wallboard, comprising:

[0053] S1, crack detection and assessment: carefully inspect the surface of the microbial cement substrate 12 to identify the location, direction and approximate width of visible cracks, and use tools such as a crack width observer or a microscope to accurately measure the width, length and depth of the cracks and record the crack morphology;

[0054] S2. Crack surface pretreatment: Use a stiff brush or low-pressure compressed air to remove dust, slurry, oil, moss, loose particles, and other debris with a width of 2-5 cm on the crack surface and both sides to ensure the crack area is clean. Use a sprayer or damp cloth to thoroughly spray clean water into the crack area and inside the crack to dissolve the pre-embedded encapsulated nutrient source, provide the moisture environment required for germination and metabolism of microbial spores, and promote the penetration of dissolved nutrients carried by water deep into the crack.

[0055] S3, Activate Self-Repair Function: After wetting, the crack area needs to be continuously moisturized according to environmental conditions. At the same time, the controller controls the ambient temperature of the wet environment to 20-35 degrees Celsius to maintain the moist environment inside the crack long enough to enable microorganisms to complete the critical stages of germination, reproduction, metabolism and production of sufficient calcium carbonate;

[0056] S4, Monitoring and evaluation of repair effects: Regularly observe the changes in the appearance of the cracks in the L-shaped adjustment frame 11. Successful repairs will show that the cracks gradually become thinner and lighter in color, and may eventually close completely or leave only thin lines. For wall panels with waterproofing requirements, water seepage tests can be carried out in the later stages of repair to evaluate the sealing effect.

[0057] When the crack of the L-shaped adjustment frame 11 is larger than its self-repairing ability, the microbial cement substrate 12 can be quickly disassembled by quickly installing and disassembling the positioning mechanism 2. After replacing the L-shaped adjustment frame 11, the crack of the damaged L-shaped adjustment frame 11 will not be affected. For smaller cracks, the repair can be directly carried out by cleaning and moistening.

[0058] The specific implementation methods of the above are as follows:

[0059] When the microbial cement substrate 12 needs to be replaced and repaired, Figure 2 As shown, the operator only needs to pass the microbial cement substrate 12 through the equipment. Here, the microbial cement substrate 12 can be produced in different sizes according to needs, and the upper end of the microbial cement substrate 12 of the larger microbial cement substrate 12 needs to be equipped with an embedded lifting ring during production, which is conducive to the on-site installation of the microbial cement substrate 12. According to the above, the on-site operator can lift the microbial cement substrate 12 according to the on-site lifting equipment. Figure 1The microbial cement substrate 12 shown is disassembled. Figure 4 As shown, the operator rotates the screw 23 counterclockwise by using a tool. At this time, the counterclockwise rotation of the screw 23 will drive the sliding plate 25 to start sliding upward along the L-shaped adjustment frame 11. At this time, the upward sliding of the sliding plate 25 will drive the connecting plate 26 to pull the limiting slide plate 27 to slide toward the side of the screw 23. At this time, the initial state is as shown in FIG. Figure 7 As shown, the limiting slide plate 27 starts to slide to the left. When the limiting slide plate 27 and the T-shaped positioning connecting block 21 are no longer in contact and pressed together, the limiting slide plate 27 and the T-shaped positioning connecting block 21 are no longer in contact and pressed together. Figure 2 As shown, the microbial cement substrate 12 is hoisted upward by the hoisting equipment. At this time, when the T-shaped positioning connection block 21 on the microbial cement substrate 12 coincides with the T-shaped slot 22 on the L-shaped adjustment frame 11, the microbial cement substrate 12 is pushed away from the L-shaped adjustment frame 11 to complete the disassembly of the microbial cement substrate 12. After disassembly, the microbial cement substrate 12 is self-maintained according to the above-mentioned maintenance steps;

[0060] When the microbial cement substrate 12 is replaced, as described above, it is only necessary to insert the T-shaped positioning connection block 21 on the microbial cement substrate 12 and the T-shaped slot 22 on the L-shaped adjustment frame 11, and then the T-shaped positioning connection block 21 and the T-shaped slot 22 are engaged under the action of gravity. Figure 3 As shown, the pressing of the linkage pressing block 31 by the bottom of the microbial cement substrate 12 drives the linkage pressing block 31 to slide downward along the guide groove 37. At this time, the downward sliding of the linkage pressing block 31 drives the auxiliary plate 33 to drive the locking extrusion block 34 to squeeze the linkage pressing block 31, so that the L-shaped adjustment frame 11 can be automatically locked after the thickness adjustment is completed. In this solution, the downward pressure generated by the weight of the microbial cement substrate 12 can automatically eliminate the deviation and tilt caused by the thickness adjustment process of the L-shaped adjustment frame 11, reducing the gap caused by manufacturing tolerances, frame adjustment errors or minor installation deviations. The positive pressure generated by the weight of the microbial cement substrate 12 is directly converted into static friction between the contact surfaces. This friction is the main initial resistance to horizontal forces such as wind loads, minor collision displacements and vibrations, achieving a preliminary "locking" effect.

[0061] The thickness adjustment function of the L-shaped adjustment frame 11 in this solution is the premise of this design. Adjusting the spacing thickness of the L-shaped adjustment frame 11 actually changes the relative position relationship between the installation location of the microbial cement substrate 12 and the bottom slide rail. When the microbial cement substrate 12 is placed on the adjusted frame, the relative position of the locking structure of its thickness adjustment locking mechanism 3 is adjusted. Only when the wall panel is completely in place can its own weight effectively act on the locking structure to achieve self-locking, which in turn indirectly verifies the accuracy of the thickness adjustment.

[0062] In summary, this solution transforms the inevitable force of gravity into a beneficial auxiliary force for installation through structural design and ingenuity, achieving "locking as soon as the plate is dropped", greatly simplifying the assembly process, and improving installation efficiency and safety. It is a typical embodiment of the pursuit of efficient and convenient construction in prefabricated buildings, and it perfectly combines the flexibility of "thickness adjustment" and the convenience of "self-weight locking".

[0063] Please refer to the above working process Figures 1 to 7 .

[0064] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0065] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A self-repairing microbial cement-based assembled wall panel, comprising a bottom bracket (1), an L-shaped adjustment frame (11) symmetrically arranged on the bottom bracket (1), a microbial cement base plate (12) mounted on the L-shaped adjustment frame (11), and a telescopic plate (13) mounted in the L-shaped adjustment frame (11), characterized in that: The self-repairing microbial cement-based assembled wallboard further comprises a quick installation and disassembly positioning mechanism (2) and a thickness adjustment locking mechanism (3); The quick installation and disassembly positioning mechanism (2) is arranged on the L-shaped adjustment frame (11) and the microbial cement base plate (12), and the quick installation and disassembly positioning mechanism (2) is used for: The thickness adjustment locking mechanism (3) is arranged in the L-shaped adjustment frame (11), and the thickness adjustment locking mechanism (3) is used for adjusting and locking the distance between the L-shaped adjustment frames (11).

2. The self-repairing microbial cement-based prefabricated wallboard according to claim 1, characterized in that: The quick installation and disassembly positioning mechanism (2) comprises a T-shaped positioning connection block (21), wherein the T-shaped positioning connection block (21) is symmetrically fixedly installed on the microbial cement substrate (12), and the L-shaped adjustment frame (11) is symmetrically provided with a T-shaped slot (22), wherein the T-shaped positioning connection block (21) is composed of a square block and a connection block, wherein the length of the connection block is the same as the thickness of the L-shaped adjustment frame (11), and the T-shaped slot (22) is composed of a square slot and a vertical slot, wherein the size of the square slot is larger than the size of the square block in the T-shaped positioning connection block (21), and the size of the connection block in the T-shaped positioning connection block (21) is adapted to the size of the vertical slot of the T-shaped slot (22).

3. The self-repairing microbial cement-based prefabricated wallboard according to claim 2, characterized in that: The quick installation and disassembly positioning mechanism (2) further comprises a screw (23), wherein fixed blocks (24) are rotatably mounted on the outer surfaces of both ends of the screw (23), wherein the fixed blocks (24) are fixedly mounted on the L-shaped adjustment frame (11), wherein a sliding plate (25) is symmetrically slidably mounted on the L-shaped adjustment frame (11), wherein the middle portion of the sliding plate (25) is threadedly mounted in the screw (23), wherein connecting plates (26) are rotatably mounted on both ends of the sliding plate (25), wherein a limiting slide plate (27) is rotatably mounted on one end of the connecting plate (26) away from the sliding plate (25), and wherein the limiting slide plate (27) is symmetrically slidably mounted on the L-shaped adjustment frame (11).

4. The self-repairing microbial cement-based prefabricated wallboard according to claim 3, characterized in that: The lower surface of the microbial cement substrate (12) is symmetrically fixedly connected with a limiting plug (28), and the bottom of the L-shaped adjustment frame (11) is symmetrically provided with a limiting groove (29), and the limiting plug (28) is inserted into the limiting groove (29).

5. The self-repairing microbial cement-based assembled wallboard according to claim 4, characterized in that: The thickness adjustment locking mechanism (3) includes a linkage pressure block (31), a guide groove (37) is provided at the bottom of the L-shaped adjustment frame (11), the linkage pressure block (31) is slidably installed in the guide groove (37), a pressure plate (32) is fixedly connected to the linkage pressure block (31), the pressure plate (32) is slidably installed on the L-shaped adjustment frame (11), and the two ends of the pressure plate (32) are rotatably connected to auxiliary plates (33), and the auxiliary plate (33) is rotatably connected to a locking extrusion block (34) at one end away from the pressure plate (32), and the locking extrusion block (34) is slidably installed on the L-shaped adjustment frame (11), and a rubber anti-skid pad is installed at one end of the locking extrusion block (34) close to the linkage pressure block (31) for anti-skid locking of the L-shaped adjustment frame (11) on the linkage pressure block (31).

6. The self-repairing microbial cement-based prefabricated wallboard according to claim 5, characterized in that: The thickness adjustment locking mechanism (3) further comprises an adjustment bolt (35), the adjustment bolt (35) being rotatably mounted on one side of the L-shaped adjustment frame (11), a threaded barrel (36) being threadedly mounted on the tooth surface of the adjustment bolt (35), and the threaded barrel (36) being fixedly mounted on the L-shaped adjustment frame (11) at one end away from the adjustment bolt (35).

7. A method for in-situ repair of cracks in a self-repairing microbial cement-based prefabricated wallboard, applicable to the self-repairing microbial cement-based prefabricated wallboard according to any one of claims 1 to 6, characterized in that: include: S1, crack detection and evaluation: carefully inspect the surface of the microbial cement substrate (12) to identify the location, direction and approximate width of visible cracks, and use tools such as crack width observation instruments or microscopes to accurately measure the width, length and depth of the cracks and record the crack morphology; S2. Crack surface pretreatment: Use a stiff brush or low-pressure compressed air to remove dust, slurry, oil, moss, loose particles, and other debris with a width of 2-5 cm on the crack surface and both sides to ensure the crack area is clean. Use a sprayer or damp cloth to thoroughly spray clean water into the crack area and inside the crack to dissolve the pre-embedded encapsulated nutrient source, provide the moisture environment required for germination and metabolism of microbial spores, and promote the penetration of dissolved nutrients carried by water deep into the crack. S3, Activate Self-Repair Function: After wetting, the crack area needs to be continuously moisturized according to environmental conditions. At the same time, the controller controls the ambient temperature of the wet environment to 20-35 degrees Celsius to maintain the moist environment inside the crack long enough to enable microorganisms to complete the critical stages of germination, reproduction, metabolism and production of sufficient calcium carbonate; S4, Monitoring and evaluation of repair effects: Regularly observe the appearance changes of the cracks in the L-shaped adjustment frame (11). Successful repair will show that the cracks gradually become thinner and lighter in color, and may eventually close completely or leave only thin lines. For wall panels with waterproofing requirements, water seepage tests can be carried out in the later stages of repair to evaluate the sealing effect.

8. The in-situ crack repair method of a self-repairing microbial cement-based prefabricated wallboard according to claim 7, characterized in that: When the cracks of the L-shaped adjustment frame (11) are larger than its self-repairing ability, the microbial cement substrate (12) can be quickly disassembled by the quick installation and disassembly positioning mechanism (2), and then the damaged L-shaped adjustment frame (11) can be repaired without affecting its use by replacing the L-shaped adjustment frame (11). For repairs with smaller cracks, the repairs can be directly performed by cleaning and moistening.

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