Magnetic concrete surface repair device and method of use

Abstract

The application belongs to the technical field of concrete crack repairing, and discloses a magnetic type concrete surface repairing device and a use method thereof. The magnetic type concrete surface repairing device comprises a mobile device, a magnetic attraction assembly, a monitoring assembly, a material supplementing assembly and a smoothing assembly. The mobile device is connected with a remote control device through telecommunication, and is used for controlling the mobile device to move along the surface of the concrete structure. The mobile device is attracted to the reinforcing steel bars in the concrete structure by the magnetic attraction assembly, so that the repairing device is attached to the surface of the concrete structure. The mobile device is controlled by the remote control device to move on the surface of the concrete structure. Then, the repairing area is found by the monitoring assembly, the repairing material is supplemented to the repairing area by the material supplementing assembly, and the smoothing treatment is performed by the smoothing assembly, so that the surface of the concrete structure is repaired. The repairing problem of the surface of the high concrete structure side wall or bottom can be solved, the practicability is high, and the manpower is saved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of concrete crack repair, and particularly relates to a magnetic type concrete surface repair device and a use method thereof. BACKGROUND

[0002] In the field of modern construction, highway bridges and other engineering construction, reinforced concrete (concrete) is one of the most important structural materials, which is made by binding steel bars and then pouring concrete; its stability and durability are directly related to the safety and service life of the project. However, especially in mass concrete, such as bridge piers, during the construction process, due to insufficient vibration degree, improper form removal operation and other reasons, there are many problems such as honeycomb, pitted surface, lack of edges and corners, and small cracks on the surface of the concrete, which seriously affect the appearance quality of the concrete. Moreover, with the passage of time, environmental erosion and improper maintenance during use, the concrete surface often appears cracks, peeling, weathering, stains and other problems, which not only affect the appearance, but also may threaten the overall safety of the structure.

[0003] At present, the surface repair of high mass concrete structure side wall or bottom is mostly assisted by climbing car and other machinery, and the repair material such as cement mortar or epoxy resin is repaired by artificial brushing, which not only has high construction cost, but also has high risk coefficient. Moreover, it is very inconvenient to maintain the concrete construction of high-rise buildings and viaduct projects, especially the linear engineering of highway bridges, therefore, the present application provides a magnetic type concrete surface repair device and a use method thereof to solve the above problems. SUMMARY

[0004] In order to solve the above problems, the present application provides a magnetic type concrete surface repair device and a use method thereof, which solves the problems of high artificial construction cost and high risk coefficient.

[0005] The present application is realized by the following scheme: a magnetic type concrete surface repair device, comprising:

[0006] A mobile device;

[0007] A magnetic assembly is arranged on one side of the mobile device facing the concrete structure, which is used to adsorb the steel bars in the concrete structure, so as to realize the adhesion of the mobile device to the surface of the concrete structure;

[0008] A monitoring assembly is arranged at the head end of the mobile device, which is used to monitor the repair area existing on the surface of the concrete structure;

[0009] A material supplementing assembly is arranged at the tail end of the mobile device, which is used to supplement the repair material to the repair area;

[0010] The leveling assembly is arranged at the tail end of the mobile device and is in close contact with the concrete structure surface, the mobile device moves, and then the leveling assembly levels the supplementary repair material to realize the repair of the concrete structure surface.

[0011] The remote control device is in electrical connection with the mobile device and is used for controlling the mobile device to move along the concrete structure surface.

[0012] The further improvement of the magnetic type concrete surface repair device lies in that the magnetic attraction assembly comprises an electromagnetic chuck fixed to the side of the mobile device facing the concrete structure and a magnetic force sensor arranged on the electromagnetic chuck, and the electromagnetic chuck has a magnetic force when powered on to realize attraction with the steel bars in the concrete structure.

[0013] The further improvement of the magnetic type concrete surface repair device lies in that the monitoring assembly comprises a connecting frame and a camera, the connecting frame is fixed to the head end of the mobile device, and the camera is fixed to the connecting frame.

[0014] The further improvement of the magnetic type concrete surface repair device lies in that the monitoring assembly further comprises a mounting plate fixed to the connecting frame, and a lamp for illuminating the concrete structure surface in a dim environment is fixed around the camera on the mounting plate.

[0015] The further improvement of the magnetic type concrete surface repair device lies in that the material supplementing assembly comprises a connecting pipe fixed to the mobile device and a shotcrete pipe fixed to the tail end of the mobile device and located in front of the travel route of the leveling assembly, a first end of the connecting pipe is in communication with an external material supplementing conveying assembly, a second end of the connecting pipe is in communication with the shotcrete pipe, and a valve is fixedly installed at the first end of the connecting pipe.

[0016] The further improvement of the magnetic type concrete surface repair device lies in that the material supplementing conveying assembly comprises a material storage container storing repair material, a conveying pipe for communicating with the connecting pipe, and a pumping pump arranged in the material storage container and used for pumping the repair material to the conveying pipe, and the conveying pipe is a hose.

[0017] The further improvement of the magnetic type concrete surface repair device lies in that the leveling assembly comprises a brush plate connected and fixed to the tail end of the mobile device, the brush plate comprises a plate piece, a spatula and a brush, the plate piece is connected and fixed to the tail end of the mobile device, the brush is arranged and fixed to the side of the plate piece facing the concrete structure, and the spatula is fixed to the side of the plate piece facing the concrete structure and located at the first end edge of the brush.

[0018] The leveling assembly further comprises an adjusting assembly for closely contacting the brush plate with the concrete structure surface.

[0019] The further improvement of the magnetic type concrete surface repairing device lies in that a fixed plate is fixedly connected to the tail end of the moving device, and a connecting rod for connecting the brush plate is connected to the fixed plate.

[0020] The adjusting assembly comprises a rotating shaft, a U-shaped adjusting opening formed in the end of the fixed plate, a through opening formed in the fixed plate and communicated with the U-shaped adjusting opening, and a motor fixedly connected to the fixed plate, the first end of the rotating shaft is connected with the output shaft of the motor, the second end is rotatably penetrated into the through opening, the first end of the connecting rod is connected with the rotating shaft and embedded into the U-shaped adjusting opening; the motor drives the rotating shaft to rotate, and then the connecting rod rotates with the brush plate, so as to realize the close contact of the brush plate with the concrete structure surface.

[0021] The further improvement of the magnetic type concrete surface repairing device lies in that the adjusting assembly further comprises a self-adjusting piece for always closely contacting the brush plate with the concrete structure surface, the self-adjusting piece comprises a movable hole penetrating through the connecting rod and for penetrating the rotating shaft, a gear fixed to the outside of the rotating shaft, and a gear meshing tooth groove formed at the position corresponding to the gear on the movable hole, the size of the gear meshing tooth groove is larger than that of the gear, so that a gear-shaped gap is formed between the gear meshing tooth groove and the gear, and a pressure sensor for detecting the pressing force between the gear and the gear meshing tooth groove is arranged in the gear-shaped gap.

[0022] A use method of the magnetic type concrete surface repairing device, comprising the following steps:

[0023] Providing the magnetic type concrete surface repairing device described above;

[0024] Firstly, the magnetic type concrete surface repairing device is attached to the concrete structure surface, and then the magnetic attraction assembly is started to attract the steel bars in the concrete structure, so that the magnetic type concrete surface repairing device is attached to the concrete structure surface;

[0025] The remote control device is operated to drive the moving device to move along the concrete structure surface to find the repairing area;

[0026] After the monitoring assembly finds the repairing area, the remote control device is operated to drive the moving device to move to the repairing area, the replenishing assembly is started to replenish the repairing material to the repairing area, and the remote control device is continuously operated to drive the moving device to move with the troweling assembly to trowel the repairing material replenished to the repairing area.

[0027] Compared with the prior art, the magnetic type concrete surface repairing device has the following beneficial effects:

[0028] The application realizes the attraction of the mobile device and the reinforcing steel in the concrete structure by adopting the magnetic attraction assembly, so as to realize the attachment of the repairing device to the surface of the concrete structure, the movement of the mobile device on the surface of the concrete structure by the remote control device, the search of the repairing area by the monitoring assembly, the supplement of the repairing material to the repairing area by the supplement assembly, and the smoothing treatment by the smoothing assembly, so as to realize the repairing of the surface of the concrete structure; the repairing device can well solve the repairing problem of the surface of the large-volume concrete structure on the high side wall or bottom, has high practicability, saves the manpower and mechanical cost, shortens the construction period, improves the construction quality, realizes the intelligent and unmanned construction, meets the green construction concept, avoids the dangerous factors of manual operation, and has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A schematic view of the application is shown.

[0030] Figure 2 An enlarged schematic view of A in the application is shown. Figure 1

[0031] An enlarged schematic view of B in the application is shown. Figure 3 Figure 1

[0032] Figure 4 An enlarged schematic view of C in the application is shown. Figure 1

[0033] An installation position schematic view of the electromagnetic suction disc in the application is shown. Figure 5

[0034] A sectional structure schematic view of the connection between the fixing plate and the connecting rod in the application is shown. Figure 6

[0035] A schematic view of the position of the gear and the gear slot structure in the application is shown. Figure 7

[0036] ​​​In the figure: 1, concrete structure; 101, steel bar; 2, supplement assembly; 201, extraction pump; 202, conveying pipe; 203, valve; 204, connecting pipe; 205, gunniting pipe; 3, troweling assembly; 301, fixed plate; 3011, U-shaped adjusting port; 302, plate; 303, brush; 304, trowel; 305, connecting rod; 306, motor; 307, rotating shaft; 308, gear; 309, gear slot; 310, pressure sensor; 311, through port; 312, movable hole; 4, monitoring assembly; 401, connecting frame; 402, mounting plate; 403, camera; 404, lamp; 405, protective cover; 5, signal receiving / transmitter; 6, central processing unit; 7, battery; 8, magnetic attraction assembly; 801, electromagnetic chuck; 802, magnetic force sensor; 9, mobile device. DETAILED DESCRIPTION

[0037] In order to solve the problems of high cost and high risk coefficient of manual construction, the application provides a magnetic attraction type concrete surface repairing device and a use method thereof. The magnetic attraction type concrete surface repairing device and the use method thereof are further described below in combination with specific embodiments and the accompanying drawings.

[0038] Referring to Figures 1-7 The magnetic attraction type concrete surface repairing device shown in the figure comprises:

[0039] The mobile device 9;

[0040] The magnetic attraction assembly 8 is arranged on the side of the mobile device 9 facing the concrete structure 1, and is used to attract the steel bar 101 in the concrete structure 1, so as to realize the adhesion of the mobile device 9 to the surface of the concrete structure 1;

[0041] The monitoring assembly 4 is arranged at the head end of the mobile device 9, and is used to monitor the repair area existing on the surface of the concrete structure 1;

[0042] The supplement assembly 2 is arranged at the tail end of the mobile device 9, and is used to supplement the repair material to the repair area;

[0043] The troweling assembly 3 is arranged at the tail end of the mobile device 9 and closely adheres to the surface of the concrete structure 1. When the mobile device 9 moves, the troweling assembly 3 trowels the supplemented repair material, so as to realize the repair of the surface of the concrete structure 1;

[0044] The remote control device is in telecommunication connection with the mobile device 9, and is used to control the movement of the mobile device 9 along the surface of the concrete structure 1.

[0045] Specifically, the remote control device is provided with a display screen, facilitating observation and operation; the mobile device 9 is a mobile trolley; the magnetic attraction assembly 8 is adopted to realize attraction between the mobile device 9 and the steel bars 101 in the concrete structure 1, so as to realize attachment of the repairing device to the surface of the concrete structure 1; the mobile device 9 is controlled by the remote control device to move on the surface of the concrete structure 1, and then the monitoring assembly 4 is used to find the repairing area, the repairing material is supplemented to the repairing area by the supplement assembly 2, and then the troweling assembly 3 is used for troweling treatment, so as to realize repair of the surface of the concrete structure 1; the repairing device can well solve the problem of repair of the surface of the high concrete structure 1 on the side wall or the bottom.

[0046] As shown in Figure 1 , 2 and 5, the magnetic attraction assembly 8 comprises an electromagnetic chuck 801 fixed to one side of the mobile device 9 facing the concrete structure 1 and a magnetic force sensor 802 arranged on the electromagnetic chuck 801; the electromagnetic chuck 801 has a magnetic force when powered, so as to realize attraction with the steel bars 101 in the concrete structure 1.

[0047] When the magnetic force is greater than the weight of the whole repairing device, the repairing device can be firmly attached to the surface of the concrete structure 1 by adopting the electromagnetic chuck 801 having a magnetic force; the magnetic force sensor 802 can detect the magnetic force of the electromagnetic chuck 801, so as to be uploaded to the display screen on the remote control device, facilitating observation and operation of the operator.

[0048] As shown in Figure 3 , the monitoring assembly 4 comprises a connecting frame 401 and a camera 403; the connecting frame 401 is fixed to the head end of the mobile device 9, and the camera 403 is fixed to the connecting frame 401.

[0049] The monitoring assembly 4 further comprises a mounting plate 402 fixed to the connecting frame 401; the mounting plate 402 is fixed with a lamp 404 located around the camera 403 and used for illuminating the surface of the concrete structure 1 in a dim environment.

[0050] Specifically, the camera 403 is externally provided with a protective cover 405 made of transparent material, preferably glass, which can simply protect the camera 403; the mounting plate 402 can be a light shield plate; the camera 403 can be used for observing the surface of the concrete structure 1 and uploading the monitoring picture to the display screen on the remote control device; once the repairing area is found, it is beneficial for the operator to timely control repair; the lamp 404 can be used for illumination, facilitating use of the repairing device in a dim environment.

[0051] As shown in Figure 1 , 2As shown in Figs. 4, the feeding assembly 2 comprises a connecting pipe 204 fixed on the mobile device 9 and a spraying pipe 205 fixed on the tail end of the mobile device 9 and located in front of the traveling route of the smoothing assembly 3, the first end of the connecting pipe 204 is in communication with an external feeding delivery assembly, and the second end is in communication with the spraying pipe 205; the first end of the connecting pipe 204 is fixedly installed with a valve 203.

[0052] The feeding delivery assembly comprises a storage container for storing the repair material, a delivery pipe 202 for communicating with the connecting pipe 204, and a pumping pump 201 arranged in the storage container and used for pumping the repair material to the delivery pipe 202, and the delivery pipe 202 is a hose.

[0053] Specifically, the pumping pump 201 is a centrifugal pump, the storage container is arranged on the ground, the repair material is pumped by the pumping pump 201, the length of the delivery pipe 202 is relatively long, and the delivery pipe 202 can meet the range requirement of the mobile device 9; the valve 203 can control the repair material to be repaired through the spraying pipe 205, which is beneficial to operation.

[0054] As shown in Figs. 1, 2 and 5, the smoothing assembly 3 comprises a brush plate connected and fixed on the tail end of the mobile device 9; the brush plate comprises a plate member 302, a trowel 304 and a brush 303, the plate member 302 is connected and fixed on the tail end of the mobile device 9, the brush 303 is arranged and fixed on one side of the plate member 302 facing the concrete structure 1, and the trowel 304 is fixed on one side of the plate member 302 facing the concrete structure 1 and located at the first end edge of the brush 303.

[0055] The smoothing assembly 3 further comprises an adjusting assembly for tightly abutting the brush plate to the surface of the concrete structure 1.

[0056] The mobile device 9 is moved, the brush plate is moved together, the brush plate is tightly abutted to the surface of the concrete structure 1, the repair material supplemented to the repair area is tightly leveled by the trowel 304, and then the surface is smoothed by the brush 303, so that the repair operation is completed.

[0057] As shown in Figs. 6 and 7, the tail end of the mobile device 9 is fixedly connected with a fixed plate 301, and the fixed plate 301 is connected with a connecting rod 305 for connecting the brush plate.

[0058] The adjusting assembly comprises a rotating shaft 307, a U-shaped adjusting port 3011 opened at the end of the fixed plate 301, a through port 311 opened on the fixed plate 301 and in communication with the U-shaped adjusting port 3011, and a motor 306 fixedly connected to the fixed plate 301, the first end of the rotating shaft 307 is connected with the output shaft of the motor 306, the second end is rotatably arranged in the through port 311, and the first end of the connecting rod 305 is connected with the rotating shaft 307 and embedded in the U-shaped adjusting port 3011; the motor 306 drives the rotating shaft 307 to rotate, and then the connecting rod 305 rotates with the brush plate, so that the brush plate is tightly abutted to the surface of the concrete structure 1.

[0059] The adjusting assembly further comprises a self-adjusting component for keeping the brush plate in close contact with the surface of the concrete structure 1. The self-adjusting component comprises a movable hole 312 through the connecting rod 305 and for the rotating shaft 307 to pass through, a gear 308 fixed to the outside of the rotating shaft 307, and a tooth groove 309 formed on the movable hole 312 and corresponding to the position of the gear 308, the gear 308 is engaged with the tooth groove 309. The size of the tooth groove 309 is larger than that of the gear 308, so that a tooth-shaped gap is formed between the tooth groove 309 and the gear 308. A pressure sensor 310 is arranged in the tooth-shaped gap for detecting the pressing force between the gear 308 and the tooth groove 309.

[0060] Specifically, the connecting rod 305 is arranged obliquely. The rotating shaft 307 is driven to rotate by the motor 306 to adjust, so that the gear 308 is driven to rotate, and the gear 308 can abut against the tooth groove 309 to drive the connecting rod 305 to rotate and adjust, so that the brush plate can be kept in close contact with the surface of the concrete structure 1. The pressure sensor 310 is arranged to detect the pressing force between the gear 308 and the tooth groove 309 at all times. When the mobile device 9 moves to the surface of the concrete structure 1 with a certain curvature, the brush plate is not in close contact with the surface of the concrete structure 1, and the pressure detected by the pressure sensor 310 is less than a set value. The motor 306 is controlled to drive the rotating shaft 307 to rotate and adjust, so that the gear 308 abuts against the tooth groove 309 to drive the connecting rod 305 to rotate, and the brush plate can be kept in close contact with the surface of the concrete structure 1, and the pressure detected by the pressure sensor 310 reaches the set value. The self-adjusting component can keep the brush plate in close contact with the surface of the concrete structure 1 at all times, so as to improve the application range of the smoothing assembly 3.

[0061] Referring to FIG. 8, Figure 2 The magnetic concrete surface repairing device further comprises a battery 7 detachably mounted in the mobile device 9 for supplying power to the mobile device 9, the magnetic attraction assembly 8, the monitoring assembly 4 and the smoothing assembly 3.

[0062] Specifically, the mobile device 9 is provided with a signal receiver / transmitter 5, and the mobile device 9 is internally provided with a central processing unit 6, so that the remote control device can control the mobile device 9, the monitoring assembly 4, the suction pump 201, the valve 203 and the smoothing assembly 3, etc.

[0063] A use method of a magnetic concrete surface repairing device, comprising the following steps:

[0064] The magnetic concrete surface repairing device is provided.

[0065] The magnetic concrete surface repairing device is attached to the surface of the concrete structure 1, and the electromagnetic suction disc 801 is powered to have a magnetic force to attract the steel bars 101 in the concrete structure 1, so that the magnetic concrete surface repairing device is attached to the surface of the concrete structure 1.

[0066] One end of the conveying pipe 202 is connected with the extraction pump 201 on the ground, and the other end is connected with the connecting pipe 204;

[0067] The remote control device is operated to drive the mobile device 9 to move along the surface of the concrete structure 1 to find the repair area;

[0068] After the camera 403 finds the repair area, the picture is uploaded to the screen, then the operator operates the remote control device to drive the mobile device 9 to move to the repair area, and then starts the extraction pump 201 to work to extract the repair material, opens the valve 203, and finally passes through the conveying pipe 202, the connecting pipe 204, and the gunite pipe 205 to supplement the repair material to the repair area, and continues to operate the remote control device to drive the mobile device 9 to move, thereby bringing the trowel 304 and the brush 303 to the repair area for troweling.

[0069] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0070] The above embodiments of the present application are described in detail in combination with the drawings, and those of ordinary skill in the art can make various changes to the present application according to the above description. Thus, some details in the embodiments should not constitute a limitation on the present application, and the scope of protection of the present application will be defined by the appended claims.

Claims

1. A magnetic concrete surface repairing device, characterized in that, The application relates to a mobile device for repairing a concrete structure. The mobile device comprises a magnetic assembly arranged on the side of the mobile device facing the concrete structure, which is used to attract the steel bars in the concrete structure to realize the adhesion of the mobile device to the surface of the concrete structure. The mobile device further comprises a monitoring assembly arranged at the head end of the mobile device, which is used to monitor the repair area on the surface of the concrete structure. The mobile device further comprises a material supplementing assembly arranged at the tail end of the mobile device, which is used to supplement the repair material to the repair area. The mobile device further comprises a smoothing assembly arranged at the tail end of the mobile device and closely contacting the surface of the concrete structure, wherein the mobile device moves, and the smoothing assembly smoothes the supplemented repair material to realize the repair of the surface of the concrete structure. The mobile device further comprises a remote control device in electrical connection with the mobile device, which is used to control the movement of the mobile device along the surface of the concrete structure. The smoothing assembly comprises a brush plate fixedly connected to the tail end of the mobile device, wherein the brush plate comprises a plate, a spatula and a brush, the plate is fixedly connected to the tail end of the mobile device, the brush is arranged and fixed on the side of the plate facing the concrete structure, and the spatula is fixed on the side of the plate facing the concrete structure and located at the leading edge of the brush. The smoothing assembly further comprises an adjusting assembly used to closely contact the brush plate with the surface of the concrete structure. The tail end of the mobile device is fixedly connected with a fixed plate, and a connecting rod used to connect the brush plate is arranged on the fixed plate. The adjusting assembly comprises a rotating shaft, a U-shaped adjusting opening arranged at the end of the fixed plate, a through hole arranged on the fixed plate and communicated with the U-shaped adjusting opening, and a motor fixedly connected to the fixed plate, the first end of the rotating shaft is connected with the output shaft of the motor, the second end of the rotating shaft is rotatably arranged in the through hole, and the first end of the connecting rod is connected with the rotating shaft and embedded in the U-shaped adjusting opening; the motor drives the rotating shaft to rotate, and then the connecting rod rotates with the brush plate to closely contact the brush plate with the surface of the concrete structure. The adjusting assembly further comprises a self-adjusting piece used to always closely contact the brush plate with the surface of the concrete structure, the self-adjusting piece comprises a movable hole penetrating through the connecting rod and used for the rotating shaft to pass through, a gear fixed to the outside of the rotating shaft, and a gear slot formed on the movable hole and corresponding to the position of the gear, the gear slot is larger than the gear in size, so that a gear-shaped gap is formed between the gear slot and the gear, and a pressure sensor used to detect the compression force between the gear and the gear slot is arranged in the gear-shaped gap. The magnetic assembly comprises an electromagnetic chuck fixed to the side of the mobile device facing the concrete structure, and a magnetic force sensor arranged on the electromagnetic chuck, the electromagnetic chuck has a magnetic force when electrified to realize the attraction to the steel bars in the concrete structure.

2. The magnetic concrete surface repairing device according to claim 1, wherein, The monitoring assembly comprises a connecting frame fixed to the head end of the mobile device, and a camera fixed to the connecting frame.

3. The magnetic concrete surface repairing device as claimed in claim 1, wherein The monitoring assembly further comprises a mounting plate fixed to the connecting frame, and a lamp fixed to the mounting plate and located around the camera and used to illuminate the surface of the concrete structure in a dim environment.

4. The magnetic concrete surface repairing device according to claim 3, wherein, The material supplementing assembly comprises a connecting pipe fixed to the mobile device, and a shotcrete pipe fixed to the tail end of the mobile device and located in front of the travel route of the smoothing assembly, the first end of the connecting pipe is communicated with an external material supplementing conveying assembly, and the second end of the connecting pipe is communicated with the shotcrete pipe; a valve is fixedly arranged at the first end of the connecting pipe.

5. The magnetic concrete surface repairing device as claimed in claim 1, wherein ​ 6. The magnetic concrete surface repairing device according to claim 5, wherein, The feeding assembly comprises a storage container for storing repair material, a conveying pipe for connecting the connecting pipe, and a pumping device arranged in the storage container and used for pumping the repair material to the conveying pipe, and the conveying pipe is a hose.

7. A method of using a magnetic concrete surface repair device, comprising: providing a magnetic concrete surface repair device having a magnet and a handle; and applying the magnetic concrete surface repair device to a concrete surface to be repaired. The method comprises the following steps: The magnetic concrete surface repair device is provided according to claim 1; The magnetic concrete surface repair device is first attached to the surface of the concrete structure, and then the magnetic assembly is activated to attract the steel bars in the concrete structure, so that the magnetic concrete surface repair device is attached to the surface of the concrete structure. The remote control device is operated to drive the moving device to move along the surface of the concrete structure to search for the repair area. After the monitoring assembly finds the repair area, the remote control device is operated to drive the moving device to move to the repair area, the feeding assembly is activated to supply repair material to the repair area, and the remote control device is continuously operated to drive the moving device to move with the troweling assembly to trowel the repair material supplied to the repair area.

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