A masonry structure component crack detection and grouting integrated device

Abstract

An integrated grouting and crack detection device for masonry structural components, combining a grouting unit and a detection unit, allows the traditional two-step process of detection followed by grouting to be performed continuously on a single device, improving the overall efficiency of crack detection and filling. The grouting unit enables precise control of the crack filling process, ensuring that magnetic mortar fully fills the cracks without overflowing and disturbing the surrounding masonry. This allows for crack filling even years after the masonry's completion, while maintaining a clean and controlled working environment. The modular design of the grouting unit allows the main frame to adapt to various irregular crack extensions, freely combining and splicing to completely cover the cracks. Simultaneously, the magnetic mortar fills the cracks, while the difference in magnetic induction intensity generated by the magnetic powder provides a new method for detecting the degree of crack damage.

Description

Technical Field

[0001] This invention relates to the field of masonry structure crack monitoring technology, specifically to an integrated device for crack detection and grouting of masonry structure components. Background Technology

[0002] Masonry structure is a common form of building structure. After the plastering of the walls of a masonry structure is completed, sometimes large areas of fine and dense cracks resembling tortoise shells will appear on the wall surface. When these cracks are fine and shallow, they are not very harmful and can be left untreated. However, when the cracks are deep and form fissures, they are often accompanied by hollowing and peeling.

[0003] When cracks appear, they need to be inspected to determine the extent of damage, such as crack depth and width, before being filled. Traditional methods require two separate steps. Furthermore, the degree of damage at each location of the crack needs to be recorded separately, making it impossible to link this information with room drawings or masonry location and dimensions.

[0004] If the extent of crack damage can be detected and correlated with the dimensions of the room relative to the crack on the blueprint, and this information can be entered into the management system, it will facilitate long-term maintenance of the records.

[0005] Therefore, this application design incorporates equipment for simultaneous detection and repair, improving construction efficiency. It also enables the correlation between crack damage information and masonry drawing information. Summary of the Invention

[0006] In order to overcome the shortcomings of the above-mentioned technologies, the present invention provides an integrated device for crack detection and grouting of masonry structural components.

[0007] The technical solution of the present invention: A grouting integrated device for detecting cracks in masonry structural components, comprising a grouting device and a scanning device. The grouting device includes a grouting machine, magnetic mortar containing magnetic powder, a main frame, a lifting frame, a sealing strip, a lifting mechanism, and a grout brush. The main frame is detachably fixedly installed on the masonry with cracks. The main frame includes an installation end face facing the masonry. The installation end face is provided with a central groove corresponding to the crack position. The installation end face is provided with four sealing grooves surrounding the central groove. The sealing strip is embedded in the sealing groove to seal the central groove.

[0008] The central groove is provided with a guide post, and the lifting frame is sleeved on the guide post and slides back and forth relative to the crack position. The lifting mechanism is fixed to the main frame and works in conjunction with the lifting frame to drive the lifting frame to slide back and forth. The brushing component is detachably fixed to the lifting frame and is provided with a brush facing the end of the crack. The side of the main frame is provided with a grouting hole that communicates with the central groove and is connected to the grouting machine.

[0009] The scanning device includes a laser rangefinder and a gaussmeter. The laser rangefinder measures the position coordinates of the main frame relative to the wall. The gaussmeter includes a Hall probe that is detachably fixed to the lifting frame. After the magnetic mortar is injected to fill the masonry cracks, the probe moves with the lifting frame to detect the magnitude of the magnetic induction intensity at various points of the crack at unit distance intervals to identify the degree of crack damage.

[0010] Using the above technical solution, the main frame covers the crack and is fixed to the masonry. The sealing strip is pressed against the surface of the masonry and surrounds the central groove, making the central groove a sealed space for grouting. The grouting machine injects magnetic mortar containing magnetic powder into the central groove. Under the restriction of the sealed space and the brushing motion of the brushing part passing through the crack, the magnetic mortar is fully injected and filled into the crack, filling all parts of the crack.

[0011] With this grouting device, the grouting process is sealed off, and the magnetic mortar flows through the central groove without overflowing the main frame, ensuring the cleanliness of the construction area and facilitating the later treatment of masonry cracks.

[0012] After the magnetic mortar fills the crack, remove the excess mortar, fix the Hall probe of the gaussmeter on the lifting frame and face the crack, and use a laser rangefinder to measure the coordinate distance of the main frame on the masonry. For example, take one corner of the masonry as the coordinate zero point, and the distance of the main frame relative to the coordinate zero point is A'B. The size of the main frame is preset, and the movement coordinate of the lifting frame can be determined as A+C'B+D. In this way, the fixed movement distance of the lifting frame can be controlled so that the coordinate of the position detected by the Hall probe each time it stops can be obtained with specific values. In addition, the difference in magnetic induction intensity detected by the Hall probe at different stopping positions can be used to obtain the information on the degree of coordinate loss at various points of the crack.

[0013] The differences in detected magnetic induction intensity are due to variations in the volume of magnetic mortar used to fill the cracks, resulting from differences in crack depth and width. Intuitively, the deeper the crack, the more magnetic mortar is used, and thus the higher the detected magnetic induction intensity. This application uses this principle to detect crack damage.

[0014] Further features of the present invention: mounting holes and mounting bolts are provided at the corners of the main frame; the masonry is provided with drilled holes around the cracks at the corresponding mounting hole spacing; expansion tubes are installed in the drilled holes; the mounting bolts pass through the mounting holes and are threadedly connected to the expansion tubes; a window extending through to the central groove is provided on the end face of the main frame opposite to the mounting end face; the window is provided with a lockable and closable transparent door; a sealing strip is provided between the transparent door and the window.

[0015] Using the above technical solution, through the set window and the openable and closable sealed transparent door, the operator can clearly observe the situation at the crack during the grouting process, observe the progress of grouting in real time, and stop grouting in time when the crack is filled. Then, without disassembling the main frame, the transparent door can be opened to clean the central groove and disassemble the grout brush. Then, the Hall probe is fixed on the lifting frame and moves with the lifting frame to detect the crack at a fixed distance.

[0016] The expansion tube and mounting bolts work together to fix the main frame to the masonry. When replacing the Hall probe, the mounting bolts can be pulled out of the expansion tube a certain distance to leave a gap between the main frame and the masonry, which facilitates the movement of the Hall probe.

[0017] A further feature of the present invention is that the central groove is provided with a parallel channel extending through the sealing groove to the side of the main frame, and the opposite corners of the side of the main frame are provided with L-shaped parallel grooves. The sides of the two main frames are spliced ​​together so that the adjacent parallel channels and parallel grooves are connected. A connecting piece is provided between the two main frames, and the two ends of the connecting piece extend into the two adjacent parallel grooves and engage.

[0018] Using the above technical solution, the main frame is a prefabricated component with fixed dimensions, while the cracks are irregular. This can lead to a situation where a single main frame cannot cover the cracks. Therefore, multiple main frames can be spliced ​​and extended by setting parallel channels and parallel grooves.

[0019] The crack is completely covered by multiple main frames, and the parallel channels are kept connected by the combination and inlay of sealing strips so that the magnetic mortar can flow. The sealing strips are still connected around the crack, sealing the large groove formed by multiple central grooves.

[0020] Furthermore, when cracks extend to different surfaces of adjacent masonry, the adjacent surfaces can be covered by right-angle splicing of the main frame.

[0021] A further feature of the present invention is that the lifting mechanism includes a transmission belt and a pair of drive motors and pulleys. The pair of drive motors and pulleys are respectively disposed on both sides of the guide column. The pulleys are sleeved on the output shaft of the drive motors. The two ends of the transmission belt are sleeved on the pulleys, and the middle section is fixed to the lifting frame. The transmission belt rotates in both directions, driving the lifting frame to reciprocate up and down along the guide column.

[0022] Using the above technical solution, the lifting frame is driven to reciprocate by the forward and reverse rotation of the drive motor and the transmission belt.

[0023] A further feature of the present invention is that the lifting frame is provided with sliding holes, and the sliding holes of the lifting frame are of a split structure and are fixed together by screws.

[0024] The above technical solution facilitates the disassembly of the lifting frame and the replacement of the brushing components or Hall probes. Multiple Hall probes can be arranged side-by-side at fixed intervals on the lifting frame, each probe having its own coordinates and number. The measured values ​​can then be combined and recorded, improving detection efficiency.

[0025] The beneficial effects of the present invention are as follows: By combining the grouting device and the detection device designed in this invention, the traditional two-step process of detection followed by grouting can be combined into one continuous process on the same equipment, thereby improving the overall process efficiency of detection and crack filling.

[0026] The grouting device allows for precise control of the crack filling process. The magnetic mortar fully fills the cracks without overflowing and disturbing the masonry outside the cracks. This ensures that even if cracks appear years after the masonry is completed, operators can complete the crack filling while maintaining a clean and controlled construction environment.

[0027] Through the modular structural design of the grouting device, the main frame can adapt to the extension of various irregular cracks, freely combine and splice, and completely cover the cracks.

[0028] By filling cracks with magnetic mortar, a new method for detecting the degree of crack damage can be formed by utilizing the difference in magnetic induction intensity generated by magnetic powder. Attached Figure Description

[0029] Figure 1 The structure of this embodiment of the invention Figure 1 ;

[0030] Figure 2 The structure of this embodiment of the invention Figure 2 ;

[0031] Figure 3 The structure of this embodiment of the invention Figure 3 ;

[0032] Figure 4 The structure of this embodiment of the invention Figure 4 ;

[0033] Figure 5 The structure of this embodiment of the invention Figure 5 .

[0034] Among them, 1-grouting machine, 2-main frame, 21-installation end face, 22-central groove, 221-parallel channel, 23-sealing groove, 24-guide column, 25-grouting hole, 26-installation hole, 27-installation bolt, 271-expansion pipe, 28-parallel groove, 29-window, 291-transparent door, 3-lifting frame, 4-sealing strip, 5-grouting component, 6-masonry, 61-crack, 7-laser rangefinder, 8-Hall sensor probe, 91-drive motor, 92-transmission belt. Detailed Implementation

[0035] The invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-5 As shown,

[0036] A device for detecting cracks 61 in masonry structural components includes a grouting device and a scanning device. The grouting device includes a grouting machine 1, magnetic mortar containing magnetic powder, a main frame 2, a lifting frame 3, a sealing strip 4, a lifting mechanism, and a brushing component 5. The main frame 2 is detachably fixedly installed on the masonry 6 with cracks 61. The main frame 2 includes an installation end face 21 facing the masonry 6. The installation end face 21 has a central groove 22 corresponding to the position of the crack 61. The installation end face 21 has four sealing grooves 23 surrounding the central groove 22. The sealing strip 4 is embedded in the sealing grooves 23 to seal the central groove 22.

[0037] The central groove 22 is provided with a guide post 24. The lifting frame 3 is sleeved on the guide post 24 and slides back and forth relative to the crack 61. The lifting mechanism is fixed to the main frame 2 and is linked with the lifting frame to drive the lifting frame 3 to slide back and forth. The grout brush 5 is detachably fixed to the lifting frame 3 and is provided with a brush facing the end of the crack 61. The side of the main frame 2 is provided with a grouting hole 25 that communicates with the central groove 22. The grouting hole 25 is connected to the grouting machine 1.

[0038] The scanning device includes a laser rangefinder 7 and a gaussmeter. The laser rangefinder measures the position coordinates of the main frame 2 relative to the wall. The gaussmeter includes a Hall probe 8 that is detachably fixed to the lifting frame 3. After the magnetic mortar is injected to fill the cracks 61 of the masonry 6, the probe moves with the lifting frame 3 to detect the magnitude of the magnetic induction intensity at each point of the cracks 61 at unit distance intervals to identify the degree of damage to the cracks 61.

[0039] The main frame 2 covers the crack 61 and is fixed to the masonry 6. The sealing strip 4 is pressed against the surface of the masonry 6 and surrounds the central groove 22, making the central groove 22 a sealed space for grouting. The grouting machine 1 injects magnetic mortar containing magnetic powder into the central groove 22. Under the restriction of the sealed space and the brushing motion of the brushing part 5 passing through the crack 61, the magnetic mortar is fully injected and filled into the crack 61, filling all parts of the crack 61.

[0040] With this grouting device, the grouting process is sealed off, and the magnetic mortar flows within the central groove 22 without overflowing outside the main frame 2, ensuring the cleanliness of the construction area so as to facilitate the later treatment of cracks 61 in the masonry 6.

[0041] After the magnetic mortar fills the crack 61, the excess mortar is removed. The Hall probe 8 of the gaussmeter is fixed on the lifting frame 3 and oriented towards the crack 61. The laser rangefinder 7 measures the coordinate distance of the main frame 2 on the masonry 6. For example, taking one corner of the masonry 6 as the coordinate zero point, the distance of the main frame 2 relative to the coordinate zero point is A'B. The size of the main frame 2 is preset, and the movement coordinate of the lifting frame 3 can be determined as A+C'B+D. In this way, the fixed movement distance of the lifting frame 3 can be controlled, so that the position coordinate of the Hall probe 8 at each stop can be obtained with specific values. In addition, the difference in magnetic induction intensity detected by the Hall probe 8 at different stopping positions can be used to obtain the information on the degree of coordinate loss at various points in the crack 61.

[0042] The difference in detected magnetic induction intensity is due to the variation in the volume of magnetic mortar filling the crack 61, which varies with its depth and width. Intuitively, the deeper the crack 61, the more magnetic mortar is used, and thus the higher the detected magnetic induction intensity value. This application uses this principle to detect damage to the crack 61.

[0043] Mounting holes 26 and mounting bolts 27 are provided at the corners of the main frame 2. The masonry 6 is provided with drilled holes around the crack 61 at intervals corresponding to the mounting holes 26. Expansion tubes 271 are installed in the drilled holes. The mounting bolts 27 pass through the mounting holes 26 and are threadedly connected to the expansion tubes 271. A window 29 is provided on the end face of the main frame 2 opposite to the mounting end face 21, which extends to the central groove 22. The window 29 is provided with a lockable and closable transparent door 291. A sealing strip 4 is provided between the transparent door 291 and the window 29.

[0044] Through the window 29 and the openable and closable sealed transparent door 291, the operator can clearly observe the situation at the crack 61 during the grouting process, observe the progress of grouting in real time, and stop grouting in time when the crack 61 is completely filled. Then, without disassembling the main frame 2, the transparent door 291 can be opened to clean the central groove 22 and disassemble the grout brush 5. Then, the Hall probe 8 is fixed on the lifting frame 3 and moves with the lifting frame 3 to detect the crack 61 at fixed intervals.

[0045] The expansion tube 271 and the mounting bolt 27 are designed to work together to fix the main frame 2 to the masonry 6. At the same time, when replacing the Hall probe 8, the mounting bolt 27 can be pulled out of the expansion tube 271 by a certain distance to leave a gap between the main frame 2 and the masonry 6, so as to facilitate the movement of the Hall probe 8.

[0046] The central groove 22 is provided with a parallel channel 221 that extends through the sealing groove 23 to the side of the main frame 2. The opposite corners of the side of the main frame 2 are provided with L-shaped parallel grooves 28. The sides of the two main frames 2 are spliced ​​together so that the adjacent parallel channels 221 and parallel grooves 28 are connected. A connecting piece is provided between the two main frames 2, and the two ends of the connecting piece extend into the two adjacent parallel grooves 28 and engage.

[0047] The main frame 2 is a prefabricated component with a fixed size, while the crack 61 is irregular. This can lead to a situation where one main frame 2 cannot cover the crack 61. Therefore, multiple main frames 2 can be spliced ​​and extended by setting parallel channels 221 and parallel grooves 28.

[0048] The crack 61 is completely covered by multiple main frames 2, and the parallel channel 221 is kept connected by the combination of sealing strips 4 so that the magnetic mortar can flow, while the sealing strips 4 remain connected around the crack, sealing the large groove formed by multiple central grooves 22.

[0049] Furthermore, when crack 61 extends to different surfaces of adjacent masonry 6, the adjacent surfaces can be covered by right-angle splicing of the main frame 2.

[0050] The lifting mechanism includes a transmission belt 92, a pair of drive motors 91, and pulleys. The pair of drive motors 91 and pulleys are respectively arranged on both sides of the guide column 24. The pulleys are sleeved on the output shaft of the drive motors 91. The two ends of the transmission belt 92 are sleeved on the pulleys, and the middle section is fixed to the lifting frame 3. The transmission belt 92 rotates in both directions, driving the lifting frame 3 to reciprocate up and down along the guide column 24.

[0051] The lifting frame 3 is driven to reciprocate by the forward and reverse rotation of the drive motor 91 and the transmission belt 92.

[0052] The lifting frame 3 is provided with sliding holes. The sliding holes of the lifting frame 3 are in a split structure and are fixed together by screws.

[0053] This allows for the disassembly of the lifting frame 3 and the replacement of the brushing component 5 or the Hall probe 8. Multiple Hall probes 8 can be arranged side-by-side at fixed intervals on the lifting frame 3. Each probe has its own coordinates and number, and the detected values ​​can be combined and recorded to improve detection efficiency.

[0054] The beneficial effects of the present invention are as follows: By combining the grouting device and the detection device designed in this invention, the traditional two-step process of detection followed by grouting can be combined into one continuous process on the same equipment, thereby improving the overall process efficiency of detecting and filling cracks 61.

[0055] By setting up the grouting device, the process of filling crack 61 can be precisely controlled. The magnetic mortar fully fills crack 61 without overflowing and disturbing the masonry 6 outside crack 61. Even if crack 61 appears many years after the completion of masonry 6, the operator can complete the filling of crack 61 under the controllable protection of the construction environment.

[0056] Through the modular structural design of the grouting device, the main frame 2 can adapt to the extension of various irregular cracks 61, freely combine and splice, and completely cover the cracks 61.

[0057] While filling crack 61 with magnetic mortar, a new method for detecting the degree of damage to crack 61 is formed by utilizing the difference in magnetic induction intensity generated by magnetic powder.

[0058] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to be exhaustive.

[0059] The scope of protection is to be limited. Without departing from the design concept of this invention, all modifications made by those skilled in the art based on the technical solution of this invention should fall within the scope of protection defined by the claims of this invention.

Claims

1. A grouting and crack detection integrated device for masonry structural components, characterized in that: The device includes a grouting device and a scanning device. The grouting device includes a grouting machine, magnetic mortar containing magnetic powder, a main frame, a lifting frame, a sealing strip, a lifting mechanism, and a grout brush. The main frame is detachably fixedly installed on the masonry with cracks. The main frame includes an installation end face facing the masonry. The installation end face is provided with a central groove corresponding to the crack position. The installation end face is provided with four sealing grooves surrounding the central groove. The sealing strip is embedded in the sealing groove to seal the central groove. The central groove is provided with a guide post, and the lifting frame is sleeved on the guide post and slides back and forth relative to the crack position. The lifting mechanism is fixed to the main frame and works in conjunction with the lifting frame to drive the lifting frame to slide back and forth. The brushing component is detachably fixed to the lifting frame and is provided with a brush facing the end of the crack. The side of the main frame is provided with a grouting hole that communicates with the central groove and is connected to the grouting machine. The scanning device includes a laser rangefinder and a gaussmeter. The laser rangefinder measures the position coordinates of the main frame relative to the wall. The gaussmeter includes a Hall probe that is detachably fixed to the lifting frame. After the magnetic mortar is injected to fill the masonry cracks, the probe moves with the lifting frame to detect the magnitude of the magnetic induction intensity at various points of the crack at unit distance intervals to identify the degree of crack damage.

2. The integrated equipment for crack detection and grouting of masonry structural components according to claim 1, characterized in that: Mounting holes and mounting bolts are provided at the corners of the main frame. The masonry is provided with drilled holes around the cracks at the corresponding mounting hole spacing. Expansion tubes are installed in the drilled holes, and the mounting bolts are threaded through the mounting holes and connected to the expansion tubes. A window is provided on the end face of the main frame opposite to the mounting end face, extending to the central groove. The window is provided with a lockable and closable transparent door, and a sealing strip is provided between the transparent door and the window.

3. The integrated equipment for crack detection and grouting of masonry structural components according to claim 2, characterized in that: The central groove has a parallel channel that extends through the sealing groove to the side of the main frame. The opposite corners of the side of the main frame have L-shaped parallel slots. The sides of the two main frames are spliced ​​together so that the adjacent parallel channels and parallel slots are connected. A connecting piece is provided between the two main frames, and the two ends of the connecting piece extend into the two adjacent parallel slots and engage.

4. A grouting and crack detection integrated device for masonry structural components according to any one of claims 1-3, characterized in that: The lifting mechanism includes a transmission belt, a pair of drive motors, and pulleys. The pair of drive motors and pulleys are respectively located on both sides of the guide column. The pulleys are sleeved on the output shaft of the drive motors. The two ends of the transmission belt are sleeved on the pulleys, and the middle section is fixed to the lifting frame. The transmission belt rotates in both directions, driving the lifting frame to move up and down along the guide column.

5. The integrated equipment for crack detection and grouting of masonry structural components according to claim 4, characterized in that: The lifting frame is provided with sliding holes. The sliding holes of the lifting frame should be a split structure and be fixed together by screws.

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