A bridge and tunnel maintenance equipment and method based on big data

Abstract

The present invention discloses a big data-based bridge and tunnel maintenance device and method, comprising a placement plate placed on a bridge deck, a positioning rod installed between the placement plate and the bridge deck via a positioning mechanism, a connecting plate fixedly installed on the placement plate, and a diagonal mechanism installed between the connecting plate and the positioning rod, a sliding plate installed on the connecting plate via a sliding mechanism, a fixed seat fixedly installed on the sliding plate via an electric telescopic rod, a limit mark installed on the electric telescopic rod via a self-resetting rotating shaft, and a servo motor fixedly installed in the fixed seat. The advantages are: the present invention can perform detailed video recording and monitoring of the bottom surface of the bridge, compare big data, and can carefully clean and remove dust, impurities, and weeds on the bottom surface of the bridge, and can also repair cracks on the bottom surface of the bridge, with better overall maintenance effect and stronger functionality.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge and tunnel maintenance, and in particular to a bridge and tunnel maintenance device and method based on big data. Background Art

[0002] Bridge and tunnel maintenance refers to the use of scientific and reasonable management measures and means to manage and maintain road bridges and tunnels. Bridges are usually inspected and maintained with bridge and tunnel maintenance equipment after being used for a period of time, so as to extend the service life of the bridge;

[0003] The existing pipe maintenance equipment still has the following deficiencies when in use:

[0004] 1. Existing maintenance equipment can usually only manage and maintain the outer surface of the bridge, but not the bottom surface of the bridge. The maintenance scope is limited, the maintenance effect is poor, and it has certain limitations;

[0005] 2. Existing maintenance equipment cannot conduct thorough and comprehensive health monitoring and repair of bridges during bridge maintenance. It can usually only clean dust and impurities on the bridge but cannot repair existing cracks on the bridge.

[0006] Therefore, it is urgent to design a bridge and tunnel maintenance equipment and method based on big data to solve the above problems.

[0007] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0008] The purpose of the present invention is to solve the problems existing in the prior art and to propose a bridge and tunnel maintenance equipment and method based on big data.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A big data-based bridge and tunnel maintenance device comprises a placement plate placed on a bridge deck, a positioning drill installed between the placement plate and the bridge deck via a positioning mechanism, a connecting plate fixedly installed on the placement plate, and an inclined-stay mechanism installed between the connecting plate and the positioning drill, a sliding plate installed on the connecting plate via a sliding mechanism, a fixed seat fixedly installed on the sliding plate via an electric telescopic rod, a limit mark rod rotatably installed on the electric telescopic rod via a self-resetting rotating shaft, a servo motor fixedly installed in the fixed seat, a movable seat fixedly installed in the fixed seat via a telescopic rod, and a pushing mechanism installed between the movable seat and the servo motor;

[0011] A cleaning scraper and a repairing tube are fixedly mounted on the movable seat, and a material guiding mechanism is installed between the repairing tube and the fixed seat. Two video monitors are fixedly mounted on the movable seat, and a detection display coordinated with the two video monitors is fixedly mounted on the placement flat plate. Two extrusion spring frames are fixedly mounted on the movable seat, and cleaning rollers are rotatably mounted on the two extrusion spring frames, and heating rings are fixedly mounted inside the two cleaning rollers.

[0012] In the above-mentioned big data-based bridge and tunnel maintenance equipment, the positioning mechanism includes a mounting plate fixedly mounted on a placement plate, a positioning hole is opened on the mounting plate, and the positioning rod is slidably mounted in the positioning hole.

[0013] In the above-mentioned big data-based bridge and tunnel maintenance equipment, the inclined-stayed mechanism includes a fixed block fixedly mounted on a connecting plate, a traction roller is installed in the fixed block through a rotating roller, and a traction wire rope is fixedly connected between the traction roller and the positioning drill, a telescopic pin is fixedly mounted on the rotating roller, and a plurality of engaging holes that cooperate with the telescopic pin are opened on the fixed block.

[0014] In the above-mentioned big data-based bridge and tunnel maintenance equipment, the sliding mechanism includes a trapezoidal slider fixedly mounted on a sliding plate, a trapezoidal slide groove is provided on the connecting plate, and the trapezoidal slider is snap-fitted into the trapezoidal slide groove.

[0015] In the above-mentioned big data-based bridge and tunnel maintenance equipment, the pushing mechanism includes a fixed roller fixedly mounted on the driving end of the servo motor, and a traction rope is fixedly connected between the fixed roller and the movable seat, a partition is fixedly mounted in the fixed seat, and two lifting spring rods are fixedly mounted between the partition and the movable seat.

[0016] In the above-mentioned big data-based bridge and tunnel pipe maintenance equipment, the material guiding mechanism includes a repair box fixedly installed at the lower part of the fixed seat, an output pump is fixedly installed in the repair box, an output pipe is fixedly installed between the output end of the output pump and the repair box, and a telescopic hose is fixedly installed between the output pipe and the repair pipe, and a feeding pipe is fixedly installed on the repair box.

[0017] In the above-mentioned big data-based bridge and tunnel maintenance equipment, an inclined guide plate is fixedly installed in the repair box, and a pull rod is fixedly installed on the sliding plate.

[0018] A method for using a bridge and tunnel maintenance device based on big data, comprising the following steps:

[0019] S1. Before maintenance, first place the placement plate on the bridge deck and fit it to the bridge deck. Then use a drilling machine to drill the installation holes on the bridge deck through the positioning holes on the installation plate. Finally, use a positioning drill to penetrate the positioning holes and insert it into the installation holes and tamp them firmly. This completes the installation and positioning between the placement plate and the bridge deck.

[0020] S2. After the positioning drill is positioned, the operator can rotate the roller to drive the traction roller to reel in the pulling wire rope and tighten the pulling wire rope, and then press the telescopic pin to lock it into the locking hole in the fixed block and fix it. At this time, a triangle will be formed between the pulling wire rope, the connecting plate and the placement plate, which has high stability, thereby completing the installation between the equipment and the bridge deck;

[0021] S3. After positioning is completed, the operator can start the electric telescopic rod to drive the fixed seat to descend. When the driving end of the electric telescopic rod descends, the limit mark on it will first contact the bridge deck and rotate upward. When it continues to descend, the limit mark will be reset to the lower part of the bridge deck. At this time, the electric telescopic rod starts to retract and drives the limit mark to move up until it is in contact with the lower surface of the bridge deck, thus completing the downward movement of the fixed seat;

[0022] S4. When the fixed seat has completed its downward movement, the cleaning roller and cleaning scraper on the movable seat will be in a horizontal state with the bottom surface of the bridge deck. At this time, the servo motor will start to drive the fixed roller to rotate and release the traction rope. At this time, the jacking spring rod will automatically extend and reset and push the telescopic rod to extend, thereby pushing the movable seat to move horizontally at the bottom of the bridge deck;

[0023] S5. When the moving seat moves, the cleaning roller and the cleaning scraper will roll and scrape on the bottom surface of the bridge deck, thereby cleaning and scraping away dust, impurities, debris and weeds on the bottom surface of the bridge deck, thereby cleaning the bottom surface of the bridge deck;

[0024] S6. As the mobile seat moves, the camera monitor will start to record and detect the bottom surface of the bridge deck, and transmit the detection data to the detection display for display. The detection display will compare the status with the original large database of the bridge deck, so as to detect and determine the health status of the bottom surface of the bridge deck;

[0025] S7. When the video monitoring device detects a crack on the bottom surface of the bridge deck, the output pump in the repair box will start to transfer the cement mortar in the output pipe and the telescopic hose to the repair pipe, and then spray it into the crack on the bottom surface of the bridge deck through the repair pipe to complete the filling of the crack;

[0026] S8. After the cracks are filled, the moving seat will continue to move so that the cleaning roller moves to the cracks and moves repeatedly to compact and smooth the cracks. At this time, the heating ring in the cleaning roller will start to heat the cracks, so that the cement mortar filled in the cracks can solidify more quickly, thus completing the crack maintenance work on the bottom surface of the bridge deck.

[0027] S9. After the cleaning and maintenance work of the bottom surface of the bridge deck in the same horizontal direction is completed, the pull rod can be used to drive the sliding plate and its lower device to move horizontally as a whole to the lower horizontal position of the bottom surface of the bridge deck, and steps S1-S8 can be repeated to clean and maintain the bottom surface of the bridge deck in the lower horizontal area until the cleaning and maintenance work of the bottom surface of the bridge deck is completed, that is, the maintenance of the bottom surface of the bridge deck is completed;

[0028] S10. After the maintenance of the bridge deck is completed, the operator can loosen the pulling wire rope, pull out the positioning drill from the bridge deck, and finally use fine stone concrete to pour into the installation holes in the bridge deck for repair, thus completing the overall maintenance of the bridge deck.

[0029] Compared with the existing technology, the advantages of the present invention are:

[0030] 1: By setting the placement plate and the positioning rod, the positioning rod and the placement plate cooperate with each other to firmly fix the device on the bridge deck, so that the equipment will not shake during the maintenance work of the bridge deck, and the connection stability is high.

[0031] 2: By setting up a video monitor and a detection display, the video monitor can record and monitor the status of the bottom surface of the bridge deck, and transmit the monitoring data to the detection display for display. The big data will be analyzed and compared, so as to accurately determine the monitoring status of the bridge deck.

[0032] 3: By setting up cleaning rollers and cleaning scrapers, the cleaning rollers and cleaning scrapers can carefully clean and remove dust, impurities and impurities on the bottom of the bridge deck, which can effectively keep the bottom surface of the bridge deck clean, thereby increasing the service life of the bridge deck.

[0033] 4: By setting up a repair box filled with cement mortar, the output pump inside can fill the cement mortar into the cracks on the bottom surface of the bridge deck when working, which can effectively fill and repair the cracks, thereby playing a role in maintaining the bridge deck.

[0034] In summary, the present invention can perform detailed video recording and monitoring of the bottom surface of the bridge, perform big data comparison, and can carefully clean and remove dust, impurities and weeds on the bottom surface of the bridge. It can also repair cracks on the bottom surface of the bridge. The overall maintenance effect is better and the functionality is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0036] Figure 1 This is a structural diagram of a bridge and tunnel maintenance equipment and method based on big data proposed by the present invention;

[0037] Figure 2 for Figure 1 An enlarged view of the connection structure between the middle fixed block and its upper part;

[0038] Figure 3 for Figure 1 An enlarged view of the connection structure between the middle fixing seat, the repair box and its upper part;

[0039] Figure 4 for Figure 1 An enlarged view of the connection structure between the middle moving seat and its upper part.

[0040] In the figure: 1 bridge deck, 2 placement plate, 3 detection display, 4 positioning drill, 5 mounting plate, 6 pulling wire rope, 7 fixed block, 8 connecting plate, 9 sliding plate, 10 electric telescopic rod, 11 pull rod, 12 fixed seat, 13 repair box, 14 telescopic rod, 15 jacking spring rod, 16 telescopic hose, 17 moving seat, 18 repair pipe, 19 cleaning scraper, 20 traction roller, 21 engaging hole, 22 telescopic bayonet, 23 servo motor, 24 traction rope, 25 fixed roller, 26 feeding pipe, 27 output pump, 28 camera monitor, 29 extrusion spring frame, 30 cleaning roller, 31 heating ring, 32 inclined guide plate. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] Reference Figure 1-3A bridge and tunnel maintenance equipment and method based on big data includes a placement plate 2 placed on a bridge deck 1, a positioning drill 4 is installed between the placement plate 2 and the bridge deck 1 through a positioning mechanism, a connecting plate 8 is fixedly installed on the placement plate 2, and a diagonal mechanism is installed between the connecting plate 8 and the positioning drill 4, a sliding plate 9 is installed on the connecting plate 8 through a sliding mechanism, a fixed seat 12 is fixedly installed on the sliding plate 9 through an electric telescopic rod 10, a limit mark is rotatably installed on the electric telescopic rod 10 through a self-resetting rotating shaft, a servo motor 23 is fixedly installed in the fixed seat 12, a moving seat 17 is fixedly installed in the fixed seat 12 through a telescopic rod 14, and a pushing mechanism is installed between the moving seat 17 and the servo motor 23;

[0044] The following points are worth noting:

[0045] 1. The positioning mechanism includes a mounting plate 5 fixedly mounted on the placement plate 2. The mounting plate 5 is provided with a positioning hole, and the positioning pin 4 is slidably mounted in the positioning hole.

[0046] 2. The inclined pulling mechanism includes a fixed block 7 fixedly mounted on the connecting plate 8, a traction roller 20 is installed in the fixed block 7 through a rotating roller, and a traction wire rope 6 is fixedly connected between the traction roller 20 and the positioning drill 4, a telescopic bayonet 22 is fixedly mounted on the rotating roller, and a plurality of engaging holes 21 that cooperate with the telescopic bayonet 22 are opened on the fixed block 7.

[0047] 3. The sliding mechanism includes a trapezoidal slider fixedly mounted on the sliding plate 9. A trapezoidal slide groove is provided on the connecting plate 8, and the trapezoidal slider is snap-fitted into the trapezoidal slide groove. The sliding mechanism is used to enable the sliding plate 9 to slide horizontally only on the connecting plate 8 without displacement or separation from the connecting plate 8.

[0048] 4. The pushing mechanism includes a fixed roller 25 fixedly mounted on the driving end of the servo motor 23, and a traction rope 24 is fixedly connected between the fixed roller 25 and the movable seat 17. A partition is fixedly mounted in the fixed seat 12, and two lifting spring rods 15 are fixedly mounted between the partition and the movable seat 17.

[0049] Reference Figure 1-4 , a cleaning scraper 19 and a repairing tube 18 are fixedly mounted on the movable seat 17, and a material guide mechanism is installed between the repairing tube 18 and the fixed seat 12, two video monitors 28 are fixedly mounted on the movable seat 17, and a detection display 3 matched with the two video monitors 28 is fixedly mounted on the placement plate 2, two extrusion spring frames 29 are fixedly mounted on the movable seat 17, and cleaning rollers 30 are rotatably mounted on the two extrusion spring frames 29, and heating rings 31 are fixedly mounted inside the two cleaning rollers 30;

[0050] The following points are worth noting:

[0051] 1. The material guiding mechanism includes a repair box 13 fixedly mounted at the bottom of the fixed base 12, an output pump 27 fixedly mounted in the repair box 13, an output pipe fixedly mounted between the output end of the output pump 27 and the repair box 13, and a telescopic hose 16 fixedly mounted between the output pipe and the repair pipe 18, and a feeding pipe 26 fixedly mounted on the repair box 13.

[0052] 2. An inclined guide plate 32 is fixedly installed in the repair box 13. The inclined guide plate 32 can make the cement mortar in the repair box 13 easier to enter the output pump 27.

[0053] 3. A pull rod 11 is fixedly installed on the sliding plate 9. The operator can use the pull rod 11 to drive the sliding plate 9 to move, which is more convenient and saves trouble.

[0054] A method for using a bridge and tunnel maintenance device based on big data, comprising the following steps:

[0055] S1. Before maintenance, first place the placement plate 2 on the bridge deck 1 and fit it to it. Then use a drilling machine to drill a mounting hole on the bridge deck 1 through the positioning hole on the mounting plate 5. Finally, use a positioning drill 4 to pass through the positioning hole and insert it into the mounting hole and tamp it. This completes the installation and positioning between the placement plate 2 and the bridge deck 1.

[0056] S2. After the positioning drill 4 is positioned, the operator can rotate the roller to drive the traction roller 20 to rotate and reel in the pulling wire rope 6 and tighten the pulling wire rope 6, and then press the telescopic latch 22 to engage it with the engaging hole 21 in the fixing block 7 and fix it. At this time, a triangle is formed between the pulling wire rope 6, the connecting plate 8 and the placement plate 2, which has high stability, thereby completing the installation between the equipment and the bridge deck 1;

[0057] S3. After positioning is completed, the operator can start the electric telescopic rod 10 to drive the fixed seat 12 to descend. When the driving end of the electric telescopic rod 10 descends, the limit mark on it will first contact the bridge deck 1 and rotate upward. When it continues to descend, the limit mark will be reset to the lower part of the bridge deck 1. At this time, the electric telescopic rod 10 starts to retract and drives the limit mark to move up to fit the lower surface of the bridge deck 1, thus completing the downward movement of the fixed seat 12.

[0058] S4. When the fixed seat 12 has completed its downward movement, the cleaning roller 30 and the cleaning scraper 19 on the movable seat 17 will be in a horizontal state with the bottom surface of the bridge deck 1. At this time, the servo motor 23 will start to drive the fixed roller 25 to rotate and release the traction rope 24. At this time, the jacking spring rod 15 will automatically extend and reset and push the telescopic rod 14 to extend, thereby pushing the movable seat 17 to move horizontally at the bottom of the bridge deck 1;

[0059] S5. When the movable base 17 moves, the cleaning roller 30 and the cleaning scraper 19 roll and scrape on the bottom surface of the bridge deck 1, thereby cleaning and scraping away dust, impurities, debris, and weeds on the bottom surface of the bridge deck 1, thereby cleaning the bottom surface of the bridge deck 1;

[0060] S6. As the moving base 17 moves, the video monitoring device 28 starts to record and detect the bottom surface of the bridge deck 1, and transmits the detection data to the detection display 3 for display. The detection display 3 compares the status with the original large database of the bridge deck 1, thereby detecting and judging the health status of the bottom surface of the bridge deck 1;

[0061] S7. When the video monitoring device 28 detects a crack on the bottom surface of the bridge deck 1, the output pump 27 in the repair box 13 is activated to transfer the cement mortar in the output pipe and the telescopic hose 16 to the repair pipe 18. The mortar is then sprayed into the crack on the bottom surface of the bridge deck 1 through the repair pipe 18 to complete the filling of the crack.

[0062] S8. After the cracks are filled, the movable seat 17 will continue to move so that the cleaning roller 30 moves to the cracks and moves repeatedly to compact and smooth the cracks. At this time, the heating ring 31 in the cleaning roller 30 will start to heat the cracks, so that the cement mortar filled in the cracks can solidify more quickly, thus completing the crack maintenance work on the bottom surface of the bridge deck 1.

[0063] S9. After the cleaning and maintenance work of the bottom surface of the bridge deck 1 in the same horizontal direction is completed, the pull rod 11 can be used to drive the sliding plate 9 and its lower device to move horizontally as a whole to the downward horizontal position of the bottom surface of the bridge deck 1. The steps S1-S8 can be repeated to clean and maintain the bottom surface of the bridge deck 1 in the downward horizontal area until the cleaning and maintenance work of the bottom surface of the bridge deck 1 is completed, that is, the maintenance of the bottom surface of the bridge deck 1 is completed;

[0064] S10. After the maintenance of the bridge deck 1 is completed, the operator can loosen the pulling wire rope 6, then pull out the positioning drill 4 from the bridge deck 1, and finally use fine stone concrete to pour into the installation hole in the bridge deck 1 for repair, and the overall maintenance of the bridge deck 1 can be completed.

[0065] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0066] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A bridge and tunnel maintenance device based on big data, comprising a placement plate (2) placed on a bridge deck (1), characterized in that: A positioning rod (4) is installed between the placement plate (2) and the bridge deck (1) via a positioning mechanism, a connecting plate (8) is fixedly installed on the placement plate (2), and a diagonal mechanism is installed between the connecting plate (8) and the positioning rod (4), a sliding plate (9) is installed on the connecting plate (8) via a sliding mechanism, a fixed seat (12) is fixedly installed on the sliding plate (9) via an electric telescopic rod (10), a limit mark rod is rotatably installed on the electric telescopic rod (10) via a self-resetting rotating shaft, a servo motor (23) is fixedly installed in the fixed seat (12), a moving seat (17) is fixedly installed in the fixed seat (12) via a telescopic rod (14), and a pushing mechanism is installed between the moving seat (17) and the servo motor (23); The electric telescopic rod (10) is started to drive the fixed seat (12) to descend. When the driving end of the electric telescopic rod (10) descends, the limit mark on it will first contact the bridge deck (1) and rotate upward. When it continues to descend, the limit mark will be reset to the lower part of the bridge deck (1). At this time, the electric telescopic rod (10) starts to retract and drives the limit mark to move upward until it is in contact with the lower surface of the bridge deck (1), thus completing the downward movement operation of the fixed seat (12); A cleaning scraper (19) and a repair tube (18) are fixedly mounted on the movable seat (17), and a material guide mechanism is installed between the repair tube (18) and the fixed seat (12); two video monitors (28) are fixedly mounted on the movable seat (17), and a detection display (3) matched with the two video monitors (28) is fixedly mounted on the placement plate (2); two extrusion spring frames (29) are fixedly mounted on the movable seat (17), and cleaning rollers (30) are rotatably mounted on the two extrusion spring frames (29), and heating coils (31) are fixedly mounted inside the two cleaning rollers (30); The positioning mechanism comprises a mounting plate (5) fixedly mounted on the placement plate (2), a positioning hole being provided on the mounting plate (5), and a positioning pin (4) being slidably mounted in the positioning hole; The inclined pulling mechanism comprises a fixed block (7) fixedly mounted on a connecting plate (8), a traction roller (20) being rotatably mounted in the fixed block (7), a traction wire rope (6) being fixedly connected between the traction roller (20) and the positioning drill (4), a telescopic bayonet (22) being fixedly mounted on the rotating roller, and a plurality of engaging holes (21) cooperating with the telescopic bayonet (22) being provided on the fixed block (7); The sliding mechanism comprises a trapezoidal slider fixedly mounted on a sliding plate (9), a trapezoidal slide groove is provided on the connecting plate (8), and the trapezoidal slider is mounted in the trapezoidal slide groove; The pushing mechanism includes a fixed roller (25) fixedly mounted on the driving end of the servo motor (23), and a traction rope (24) is fixedly connected between the fixed roller (25) and the movable seat (17). A partition is fixedly mounted in the fixed seat (12), and two lifting spring rods (15) are fixedly mounted between the partition and the movable seat (17).

2. The bridge and tunnel maintenance equipment based on big data according to claim 1 is characterized in that: The material guiding mechanism comprises a repair box (13) fixedly mounted on the lower part of the fixing seat (12), an output pump (27) fixedly mounted in the repair box (13), an output pipe fixedly mounted between the output end of the output pump (27) and the repair box (13), and a telescopic hose (16) fixedly mounted between the output pipe and the repair pipe (18), and a feeding pipe (26) fixedly mounted on the repair box (13).

3. The bridge and tunnel maintenance equipment based on big data according to claim 2 is characterized in that: An inclined guide plate (32) is fixedly installed in the repair box (13), and a pull rod (11) is fixedly installed on the sliding plate (9).

4. A method for using the big data-based bridge and tunnel maintenance equipment according to claim 3, characterized in that: The following steps are involved: S1. Before carrying out pipe maintenance, first place the placement plate (2) on the bridge deck (1) and fit it thereto, then use a drilling machine to drill a mounting hole on the bridge deck (1) through the positioning hole on the mounting plate (5), and finally use a positioning drill (4) to pass through the positioning hole and embed it into the mounting hole for compaction, thereby completing the installation and positioning between the placement plate (2) and the bridge deck (1); S2. After the positioning drill (4) is positioned, the operator can rotate the roller to drive the traction roller (20) to rotate and reel in the pulling wire rope (6) and tighten the pulling wire rope (6), and then press the telescopic latch (22) to engage it in the engaging hole (21) in the fixed block (7) to fix it. At this time, a triangle is formed between the pulling wire rope (6), the connecting plate (8) and the placement plate (2), which has high stability, thereby completing the installation between the device and the bridge deck (1); S3. After positioning is completed, the operator can start the electric telescopic rod (10) to drive the fixed seat (12) to descend. When the driving end of the electric telescopic rod (10) descends, the limit mark on it will first contact the bridge deck (1) and rotate upward. When it continues to descend, the limit mark will be reset to the lower part of the bridge deck (1). At this time, the electric telescopic rod (10) starts to retract and drives the limit mark to move upward to fit the lower surface of the bridge deck (1), thus completing the downward movement operation of the fixed seat (12); S4. When the fixed seat (12) is completely moved downward, the cleaning roller (30) and the cleaning scraper (19) on the movable seat (17) will be in a horizontal state with the bottom surface of the bridge deck (1). At this time, the servo motor (23) will start to drive the fixed roller (25) to rotate and release the traction rope (24). At this time, the lifting spring rod (15) will automatically extend and reset and push the telescopic rod (14) to extend, thereby pushing the movable seat (17) to move horizontally at the bottom of the bridge deck (1); S5. When the movable seat (17) moves, the cleaning roller (30) and the cleaning scraper (19) roll and scrape on the bottom surface of the bridge deck (1), thereby cleaning and scraping away dust, impurities, debris and weeds on the bottom surface of the bridge deck (1), thereby cleaning the bottom surface of the bridge deck (1); S6. When the moving seat (17) moves, the video monitoring device (28) starts to record and detect the bottom surface of the bridge deck (1), and transmits the detection data to the detection display (3) for display. The detection display (3) compares the status with the original large database of the bridge deck (1), thereby detecting and judging the health status of the bottom surface of the bridge deck (1); S7. When the video monitoring device (28) detects that there is a crack on the bottom surface of the bridge deck (1), the output pump (27) in the repair box (13) will start to transfer the cement mortar therein to the repair pipe (18) through the output pipe and the telescopic hose (16), and the cement mortar will be sprayed into the crack on the bottom surface of the bridge deck (1) through the repair pipe (18) to complete the filling of the crack; S8. After the crack is filled, the movable seat (17) will continue to move so that the cleaning roller (30) moves to the crack and moves repeatedly, so that the crack can be compacted and smoothed. At this time, the heating ring (31) in the cleaning roller (30) will start to heat the crack, so that the cement mortar filled in the crack can solidify more quickly, and the crack maintenance work on the bottom surface of the bridge deck (1) can be completed. S9. After the cleaning and maintenance work of the bottom surface of the bridge deck (1) in the same horizontal direction is completed, the pull rod (11) can be used to drive the sliding plate (9) and its lower device to move horizontally as a whole to the downward horizontal position of the bottom surface of the bridge deck (1), and the steps S1-S8 can be repeated to perform the cleaning and maintenance work of the bottom surface of the bridge deck (1) in the downward horizontal area until the cleaning and maintenance work of the bottom surface of the bridge deck (1) is completed, that is, the maintenance of the bottom surface of the bridge deck (1) is completed; S10. After the maintenance of the bridge deck (1) is completed, the operator can loosen the pulling wire rope (6), then pull out the positioning drill (4) from the bridge deck (1), and finally use fine stone concrete to pour into the installation hole in the bridge deck (1) for repair, thereby completing the overall maintenance of the bridge deck (1).

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