Highway pavement preventive maintenance system based on asphalt concrete overlay

Abstract

The invention belongs to the technical field of pavement construction, in particular to a highway pavement preventive maintenance system based on an asphalt concrete overlay, and provides the following scheme: the highway pavement preventive maintenance system comprises a bearing mechanism, a detection mechanism, a maintenance mechanism, a panoramic video recording mechanism and a road condition positioning mechanism, the bearing mechanism carries maintenance equipment to move, and the detection mechanism detects and analyzes road condition ground depression; the maintenance mechanism is positioned to the sunken part to carry out maintenance and repair, maintenance materials are fed, the panoramic video recording mechanism records a road condition with a three-dimensional view angle, a progress image of a maintenance road section is checked in real time, and the road condition positioning mechanism marks a road surface repair implementation place and carries out electronic file indexing. From the macroscopic view, the panoramic video recording mechanism, the road condition positioning mechanism and the detection mechanism are all used for assisting in later-stage asphalt concrete overlay road repair, video image information is provided as much as possible for setting, and then the maintenance mechanism completes repair and maintenance ending work on a special area of a lengthy road surface.

Description

Technical Field

[0001] The invention relates to the field of pavement construction, and in particular discloses a highway pavement preventive maintenance system based on an asphalt concrete overlay. Background Art

[0002] Asphalt pavement is a durable and anti-skid pavement made of asphalt gravel, which is rolled by a roller and then coated with high-temperature asphalt. The excess edges are then cut off and repaired in subsequent construction.

[0003] The overlay refers to a thin asphalt surface layer of fine stone added to the original asphalt pavement to improve the quality of asphalt pavement, enhance the waterproof, anti-skid ability and flatness of the pavement.

[0004] After searching, it was found that the application number is: CN202220110984.9, a highway pavement preventive maintenance system based on asphalt concrete overlay, and its content is "a highway pavement preventive maintenance system based on asphalt concrete overlay, including a base plate, a plurality of vertical plates are fixedly connected to the upper side of the base plate, guide rods are fixedly connected to both sides of the vertical plates, sliders are slidably connected between every two vertical plates, each slider is rotatably connected to the upper side of the vertical pipe, the outer wall of each vertical pipe is sleeved with a fixed rotating wheel, and the upper end of each vertical pipe is fixedly connected to a sprinkler device, a water inlet cavity is provided in the base plate, a plurality of through holes are provided on the upper side of the base plate, and the through holes are arranged one by one with the sliders, and a hose is fixedly connected in each through hole, and a driving device is installed on one side of the vertical plate. The advantage of the utility model is that the rotation of each rotating wheel is controlled by a motor, so that the four nozzles can spray clean water evenly in the surrounding area in a circular rotation manner, and at the same time, a small displacement can be reciprocated in the horizontal direction, thereby further improving the spraying range of clean water to enhance the maintenance effect on the road surface."

[0005] This highway maintenance system is similar to the present maintenance system in terms of asphalt spraying, but obviously lacks the effectiveness of late warning and construction progress reporting;

[0006] Further search revealed a highway pavement preventive maintenance decision-making method based on data mining with application number: CN202310691169.5, the content of which is: The present invention discloses a highway pavement preventive maintenance decision-making method based on data mining, which belongs to the field of road maintenance related data analysis technology, including: using data mining anomaly detection algorithm to pre-process highway maintenance pavement technical condition record data and mark anomaly detection results; using regression analysis prediction algorithm and gray system prediction algorithm to combine and predict anomaly detection results, and using pavement performance attenuation factor analysis rules and heavy-load vehicle proportion influence analysis rules to perform correlation analysis on anomaly detection results; establishing a gray matter-element analysis algorithm, combining the combined prediction results to determine the sections to be maintained and the maintenance priority, assisting in sorting the maintenance order of the sections to be maintained, and then integrating with the correlation analysis results to assist maintenance functional departments in making maintenance decisions. It improves the efficiency of highway pavement maintenance, extends the service life of the pavement, saves maintenance costs, reduces maintenance costs, and ultimately improves the level of equipment maintenance management. In addition, the following problems exist:

[0007] 1) In terms of construction, it is urgent to point out that there are some difficulties in construction. It is difficult to count the problematic road surfaces found in the long-term construction and maintenance, because the damaged road surface is not as easy to find as the whole road. After the later maintenance, it is difficult to notify the personnel of other sections to go and find it. It is necessary to go back and check carefully. Multiple inspections are obviously not in line with the efficiency of the construction team. Because outdoor construction has repeatedly failed to command the wrong road section, it is difficult to advance the construction progress. Because there are many equipments carried, it is inevitable to place roadblocks when going to specific sections. It is particularly important for various departments to coordinate and publish accurate maintenance of highway section videos or positioning. It is not worth the loss to repair the surrounding area just for a sunken section and then go the wrong way;

[0008] 2) The construction progress is difficult to adjust, because most roads are public facilities. Since they are public facilities, it is inevitable that they are difficult to manage and maintain. The construction party claims that the construction has been completed, but other passing vehicles are not well protected during the construction period. It is inevitable that the construction section just started will suffer secondary traffic damage. It is inevitable that the construction section will be opened to traffic just after construction, causing the construction section to be crushed back and forth and damaged. This is because the information exchange between the road traffic management departments of various departments is not timely and smooth;

[0009] 3) In addition to the above problems, the most important thing is to check, because it is difficult to remind the whole road, and it is inevitable that some places on the aisle are not marked. Sometimes there will be embarrassment that the markings just made are not found the next day because the construction team has changed. Moreover, the construction progress has no ability to collect the current image 3D perspective and video data, resulting in a situation where several departments are unaware of the repair of a section of road. If there is a huge crack or deep pit on a certain section of road, the data reporting and vehicles passing this section of road cannot be reminded and reported in time, resulting in a situation where a group of people are in danger. Summary of the invention

[0010] In view of the above defects or deficiencies in the prior art, the present application aims to provide a preventive maintenance system for a highway pavement based on an asphalt concrete overlay, comprising a bearing mechanism, a detection mechanism, a maintenance mechanism, a panoramic video recording mechanism and a road condition positioning mechanism;

[0011] The carrying mechanism carries the maintenance equipment for movement;

[0012] The detection mechanism detects and analyzes road surface depressions;

[0013] The maintenance organization locates the depression to carry out maintenance and repair, and feeds maintenance materials;

[0014] The panoramic video recording unit records the road conditions with its own three-dimensional perspective and checks the progress images of the maintenance sections in real time;

[0015] The road condition positioning agency marks the locations where road repairs are to be carried out and implements electronic file indexing;

[0016] The carrying mechanism includes four independent moving wheels, a carrying bracket and a placement box;

[0017] The moving wheels are respectively installed at both ends of the bearing bracket, and the placement box is concave in shape and arranged on the top of the bearing bracket;

[0018] The end of the placement box is connected to a traction tripod, and a traction head is provided at the end of the traction tripod;

[0019] The maintenance mechanism comprises a rotating disk attached to the middle of the top of the placement box, an elevation adjustment frame is provided in the middle of the rotating disk surface, an angle adjuster is hinged on the top of the elevation adjustment frame, a "J"-shaped bracket is installed in the middle of the angle adjuster, and the two sides of the "J"-shaped bracket are respectively hinged to the cross bar provided at the bottom through an arc-shaped pulling connecting rod;

[0020] A column is vertically arranged in the middle of the "X"-shaped bracket, and an angle conversion motor for changing the unloading angle is supported on the top of the column;

[0021] A concave conveying plate is installed at the output end of the angle conversion motor, a conveying crawler is placed at the middle groove position of the concave conveying plate, and crawler tightening rollers are provided at both ends of the conveying crawler. The two crawler tightening rollers are connected by a driven pulley, and one of the crawler tightening rollers is connected to the motor installed outside the concave conveying plate;

[0022] An asphalt concrete raw material delivery box is provided on the top of the concave conveying plate, and a discharge plate is provided at the bottom of the asphalt concrete raw material delivery box;

[0023] The unloading plate is directly opposite to one end of the conveying crawler;

[0024] As a preferred solution of the present invention: an operating support plate is installed on the top side of the column;

[0025] A sunshade bracket is provided at the middle of the top of the operating support plate, a sunshade is provided at the top of the sunshade bracket, and an operating handle is installed at the back of the operating support plate;

[0026] An asphalt brushing frame is installed in the middle of the bottom end of the concave conveying plate, and an I-shaped telescopic frame is provided in the middle of the asphalt brushing frame, and an asphalt spraying pipe is telescopically provided at the end of the I-shaped telescopic frame;

[0027] A branch sprayer is arranged at the bottom of the asphalt spraying pipe.

[0028] As a preferred solution of the present invention: a catheter connection seat is provided on the surface of the asphalt brushing frame, a delivery hose is passed through the middle of the top of the catheter connection seat, one end of the delivery hose is connected to an asphalt booster delivery pump, the liquid outlet of the asphalt booster delivery pump is connected to the delivery hose, and the liquid injection port is connected to an asphalt processing tank;

[0029] The bottom of the asphalt processing tank is connected with a constant temperature heating seat, and the auxiliary heating end of the constant temperature heating seat is in contact with the bottom of the asphalt processing tank;

[0030] An asphalt transfer port is provided on the top of the asphalt processing tank, and the top of the asphalt transfer port is connected to the suction end of the asphalt booster delivery pump;

[0031] The asphalt booster delivery pump and the asphalt processing tank are detachable;

[0032] The side of the asphalt processing tank is provided with a maintenance plate inclined thereon;

[0033] As a preferred solution of the present invention: a geotextile laying mechanism is provided on the front of the placement box;

[0034] The geotextile laying mechanism includes a linear sliding track installed on the side wall of the placement box, a linear sliding block is provided at one end of the linear sliding track, a geotextile mounting frame is installed at one end of the linear sliding block, a geotextile roller is provided at one end of the geotextile mounting frame, a concave frame is installed on the side of the geotextile roller, a plurality of spray pipes are fitted on the surface of the concave frame, a trapezoidal cutter is installed on the side of the concave frame, a cutting track is installed in the middle of the trapezoidal cutter, a cutting blade is provided at the top of the cutting track, a cutting sliding block is provided at the top of the cutting blade, and a pushing rod is provided at the top of the cutting sliding block.

[0035] The inner side wall of the placement box is also provided with a vibration compaction mechanism for compacting the road surface;

[0036] The vibration compaction mechanism includes a control handle connected by a snap buckle, a compaction exciter is provided at the bottom of the control handle, a vibration exciter is provided at the bottom of the compaction exciter, a vibration rod is provided at the bottom, a buffer spring is provided on the outer wall of the vibration rod, a conical exciter is provided at the bottom of the buffer spring, and a vibration plate is provided at the bottom of the conical exciter.

[0037] As a preferred solution of the present invention: the panoramic video recording mechanism includes a panoramic camera mounter installed on the top of the awning, an electric lifter is installed at the middle of the top of the panoramic camera mounter, a camera ball is installed at the top of the electric lifter, and a plurality of panoramic video lenses are installed on the surface of the camera ball, and the panoramic video lenses record construction videos and pictures and count construction progress information;

[0038] The interior of the camera ball is wirelessly connected to the cloud processing server via a built-in wireless transceiver unit.

[0039] As a preferred solution of the present invention: the road condition positioning mechanism is used to measure the construction progress and update the image of the construction and maintenance road surface;

[0040] The road condition positioning mechanism includes a handheld recording bracket placed on the side of the placement box, the end of the handheld recording bracket is fitted with a display terminal mounting bracket, the surface of the display terminal mounting bracket is mounted with a display terminal, an arc-shaped bracket is provided at the bottom of the handheld recording bracket, and a recording probe is installed at the end of the arc-shaped bracket. The recording probe is electrically connected to the display terminal. The video information stored in the display terminal is wirelessly interactively entered with the management system constructed by the server through a wireless transceiver module to correct the construction progress and supplement the actual construction road conditions.

[0041] The input probe is equipped with a built-in coordinate locator, which marks the construction location through the Beidou navigation and positioning system.

[0042] As a preferred solution of the present invention: the detection mechanism includes an inclined folding bracket connected to the outer walls of both sides of the placing box body, the end position of the inclined folding bracket is hinged with a linkage bearing for deflection, the end position of the linkage bearing is provided with a detection plate, and a row of ultrasonic flaw detectors are installed at the bottom of the plate surface of the detection plate;

[0043] The bottom of the ultrasonic flaw detector is provided with an identification plate, and the side of the identification plate is provided with a longitude and latitude coordinate marker.

[0044] Beneficial effects:

[0045] 1) From a macro perspective, the panoramic video recording mechanism, road condition positioning mechanism and detection mechanism are all set to assist in the later asphalt concrete overlay road repair to provide as much video image information as possible, and then the maintenance organization completes the repair and maintenance of the specific area of ​​the long road surface to achieve the preventive purpose of preventive maintenance of the road surface. Some small road condition potholes or small repairs and large repairs found in the early stage can be checked, providing more detailed coordinates and surrounding environment information for the specific repair section of the subsequent dispatch work;

[0046] 2) From a microscopic point of view, the asphalt concrete raw material delivery box and the unloading plate with a repairing function are delivered by the motor, combined with the rotating disk and the elevation adjustment frame that can control and change the delivery direction, so that the repair work is more organized and more regular. The asphalt spraying pipe and branch sprayer are used. After the concrete is delivered into the pothole area, a layer of material that promotes the solidification between the concrete and the asphalt is sprayed. The compaction exciter, the excitation rod, the buffer spring and the excitation plate with compaction function compact and discharge the air in the area filled with asphalt repair, so that the repaired area can avoid the risk of excessive gaps in summer or vehicles driving in winter.

[0047] 3) The geotextile roller, trapezoidal cutter, cutting track and cutting blade in the microscopic perspective enable the geotextile to be cut off when it is just covering the space area, so as to consider the concrete waterproof layer and avoid moisture in the foundation, which will cause the asphalt pavement to be repaired due to inadequate waterproofing.

[0048] 4) The panoramic video recording unit, detection unit, and road condition positioning unit are combined with map marking technology and system cloud map functions to combine simple construction and build an electronic, video, three-dimensional and intelligent construction process. Whether it is the reminder of various road conditions or the data handover of various departments, it is more three-dimensional and specific, coordinating the department that places roadblocks, the navigation department, and the subsequent personnel responsible for different sections to dispatch for maintenance, simplifying and optimizing the tediousness of docking, and finding the road section under construction through the map index built in advance. It is also a system with update progress;

[0049] 5) From a microscopic perspective, panoramic video lenses and camera balls are used to collect 3D videos of problematic road sections. Combined with ultrasonic flaw detectors, the problematic road sections are clearly identified. The longitude and latitude coordinate markers send out coordinates. Finally, whether it is to dispatch the nearest construction team to carry out repair work or to investigate the problems of certain small sections of the entire road, the specific information of the damaged road sections can be obtained. Moreover, it runs through and integrates various departments, and also leaves a communication foundation for subsequent information sharing between other departments, roadblock departments, highway traffic management departments, or highway maintenance departments;

[0050] 6) The implementation of the finishing work will be based on the coordination between the display terminal and the input probe. In the later stage, whether it is the shooting of supplementary data in the repair stage or the uploading of subsequent perspectives of the repair progress, there is an information update medium with flexible road condition data. Finally, the valuable information can be used as a basic public service for information transmission to other map driving owners and traffic management departments. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0052] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0053] Figure 2 This is a schematic diagram of the structure of the bearing mechanism of Embodiment 1 of the present invention;

[0054] Figure 3 This is a schematic diagram of the structure of the detection mechanism of Example 2 of the present invention;

[0055] Figure 4 This is a schematic diagram of the structure of the detection board of Example 2 of the present invention;

[0056] Figure 5 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0057] Figure 6 This is a schematic diagram of the structure of the geotextile laying mechanism of Example 3 of the present invention;

[0058] Figure 7 This is a schematic structural diagram of a geotextile roller according to Embodiment 3 of the present invention;

[0059] Figure 8 This is a schematic diagram of the structure of the maintenance mechanism of Example 4 of the present invention;

[0060] Fig. 9 This is a schematic diagram of the structure of the conveyor crawler of Example 4 of the present invention;

[0061] Fig.10 This is a schematic diagram of the structure of a rotating disk according to Embodiment 4 of the present invention;

[0062] Fig.11 This is a schematic diagram of the structure of a delivery hose according to Embodiment 4 of the present invention;

[0063] Fig.12 This is a schematic diagram of the structure of an I-type telescopic frame according to Embodiment 4 of the present invention;

[0064] Fig.13 This is a schematic diagram of the structure of an asphalt processing tank according to Example 4 of the present invention;

[0065] Fig.14This is a schematic diagram of the structure of a constant temperature heating seat according to Embodiment 4 of the present invention;

[0066] Fig.15 Schematic diagram of the structure of the vibration compaction mechanism of Example 4 of the present invention;

[0067] Fig.16 This is a schematic diagram of the structure of Embodiment 5 of the present invention;

[0068] Fig.17 This is a schematic diagram of the structure of a latitude and longitude coordinate marker according to Embodiment 5 of the present invention;

[0069] Fig.18 This is a structural schematic diagram of a road condition positioning mechanism according to Embodiment 5 of the present invention;

[0070] Fig.19 It is a structural schematic diagram of the panoramic video recording mechanism according to Embodiment 5 of the present invention.

[0071] In the figure: 1, carrying mechanism; 11, moving wheel; 12, carrying bracket; 13, placing box; 14, traction tripod; 15, traction head;

[0072] 2. Detection mechanism; 21. Tilt folding bracket; 22. Linkage bearing; 23. Detection plate; 24. Ultrasonic flaw detector; 25. Identification plate; 26. Longitude and latitude coordinate marker;

[0073] 3. Maintenance mechanism; 31. Rotating plate; 311. Elevation adjustment frame; 312. Angle adjuster; 313. "X"-shaped bracket; 314. Arc-shaped pulling connecting rod; 315. Crossbar; 316. Column; 32. Angle conversion motor; 321. Concave feed plate; 322. Conveying crawler belt; 323. Track tensioning roller; 324. Motor; 325. Asphalt concrete raw material delivery box; 326. Discharge plate; 33 , operation support plate; 331, sunshade bracket; 332, sunshade; 333, operation handle; 34, asphalt brushing rack; 341, I-type telescopic rack; 342, asphalt spraying pipe; 343, branch sprayer; 344, catheter connection seat; 345, delivery hose; 346, asphalt booster delivery pump; 35, asphalt processing tank; 351, constant temperature heating seat; 352, asphalt transfer port; 353, maintenance board;

[0074] 4. Panoramic video recording mechanism; 41. Panoramic camera mounter; 42. Electric lifter; 43. Camera ball; 44. Panoramic video lens;

[0075] 5. Road condition positioning mechanism; 51. Handheld data entry bracket; 52. Display terminal mounting bracket; 53. Display terminal; 54. Arc bracket; 55. Data entry probe; 56. Coordinate locator;

[0076] 6. Geotextile laying mechanism; 61. Linear sliding track; 62. Linear sliding block; 63. Geotextile mounting frame; 64. Geotextile roller; 65. Concave frame; 66. Spraying pipe; 67. Trapezoidal cutter; 68. Cutting track; 69. Cutting blade; 691. Cutting sliding block; 692. Push rod;

[0077] 7. Vibration and compaction mechanism; 71. Control handle; 72. Compactor; 73. Excitation rod; 74. Buffer spring; 75. Conical exciter; 76. Excitation plate. DETAILED DESCRIPTION

[0078] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0079] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0080] See also Figure 1 - Fig.19 , a preventive maintenance system for highway pavement based on asphalt concrete overlay:

[0081] Embodiment 1:

[0082] Please refer to the instruction manual Figure 1-Figure 2 As shown: it includes a carrying mechanism 1, a detection mechanism 2, a maintenance mechanism 3, a panoramic video recording mechanism 4 and a road condition positioning mechanism 5;

[0083] The carrying mechanism 1 carries the maintenance equipment and moves;

[0084] Detection mechanism 2 detects and analyzes road surface depressions;

[0085] The maintenance mechanism 3 locates the depression to carry out maintenance and repair, and feeds maintenance materials;

[0086] The panoramic video recording unit 4 records the road conditions with its own three-dimensional perspective, and checks the progress images of the maintenance section in real time;

[0087] The road condition positioning unit 5 marks the location where the road surface repair is to be carried out and implements electronic file indexing;

[0088] The carrying mechanism 1 includes four independent moving wheels 11, a carrying bracket 12 and a placement box 13;

[0089] The moving wheels 11 are respectively installed at both ends of the carrying bracket 12, and the placement box 13 is concave in shape and arranged on the top of the carrying bracket 12;

[0090] The end of the placement box 13 is connected to a traction tripod 14, and a traction head 15 is provided at the end of the traction tripod 14;

[0091] Step 1: Loading and placing of basic mobile road maintenance tools;

[0092] At this stage, the placement box 13 in the carrying mechanism 1 is used to assist in placing a part of the equipment with repair capabilities in the space. The mobile wheels 11 are convenient for traction with a power vehicle, and the traction tripod 14 is for subsequent preparation. In this link, the weight of the placement box 13 is specifically shared by the carrying bracket 12;

[0093] Embodiment 2:

[0094] Please refer to the instruction manual Figure 3-Figure 4 As shown: the detection mechanism 2 includes an inclined folding bracket 21 connected to the outer walls of both sides of the placing box 13, and the end position of the inclined folding bracket 21 is hinged with a linkage bearing 22 for deflection, and the end position of the linkage bearing 22 is provided with a detection plate 23, and a row of ultrasonic flaw detectors 24 are installed at the bottom of the plate surface of the detection plate 23;

[0095] An identification plate 25 is provided at the bottom of the ultrasonic flaw detector 24 , and a latitude and longitude coordinate marker 26 is provided on the side of the identification plate 25 .

[0096] The identification plate 25 and one end of the latitude and longitude coordinate marker 26 used are identified and analyzed.

[0097] Step 2: Detect first;

[0098] Repairs are only carried out when a road section is identified with obvious cracks and large potholes;

[0099] Specifically, the inclined folding bracket 21 in the detection mechanism 2 is folded open, and then the linkage bearing 22 displayed will cause the two-stage structure of the inclined folding bracket 21 to be movable and expanded due to the hinge linkage. At this time, the detection plate 23 allows a number of ultrasonic flaw detectors 24 spaced at the bottom of the detection plate 23 to gradually scan the asphalt concrete ground while driving until the ultrasonic flaw detector 24 detects the appearance of a pothole area on the road surface that exceeds the predetermined depth range in the ground feedback;

[0100] This process will trigger the longitude and latitude coordinate marker 26 to feed back the road section to the server backend, so that other personnel can see the specific road section and mark the positioning coordinate point on the map route in time;

[0101] Then the analysis is performed using the identification board 25;

[0102] Embodiment 3:

[0103] Please refer to the instruction manual Figure 5-Figure 7As shown: a geotextile laying mechanism 6 is provided on the front of the placement box 13;

[0104] The geotextile laying mechanism 6 includes a linear sliding track 61 installed on the side wall of the placement box 13, a linear sliding block 62 is provided at one end of the linear sliding track 61, a geotextile mounting frame 63 is installed at one end of the linear sliding block 62, a geotextile roller 64 is provided at one end of the geotextile mounting frame 63, a concave frame 65 is installed on the side of the geotextile roller 64, a plurality of spraying pipes 66 are fitted on the surface of the concave frame 65, a trapezoidal cutter 67 is installed on the side of the concave frame 65, a cutting track 68 is installed in the middle of the trapezoidal cutter 67, a cutting blade 69 is provided at the top of the cutting track 68, a cutting sliding block 691 is provided at the top of the cutting blade 69, and a pushing rod 692 is provided at the top of the cutting sliding block 691.

[0105] Step 3: Repair and maintenance of road pavement;

[0106] First, the geotextile laying mechanism 6 is slidably regulated to achieve distribution. The linear sliding track 61 and the linear sliding block 62 area of ​​the surface displacement purpose are used to make the geotextile smoothly laid on the soil surface. At this time, the technical means are firstly to make the geotextile roller 64 discharge the material according to the specific conditions, and the geotextile will extend from it, and finally be laid in the area where the tunnel appears as the initial bottom layer to block water absorption;

[0107] The spray pipe 66 is first connected to a water source, and then the geotextile is wetted by each nozzle;

[0108] To do subsequent cutting, a person manually holds the push rod 692 to coordinate the cutting slide block 691 to slide back and forth. After sliding to the indicated position, the cutting blade 69 successfully completes the cutting. After cutting, the secondary concrete raw material delivery is implemented again.

[0109] Embodiment 4:

[0110] Please refer to the instruction manual Figure 8-Figure 15 As shown: the maintenance mechanism 3 includes a rotating disk 31 attached to the middle of the top of the placement box 13, an elevation adjustment frame 311 is provided in the middle of the rotating disk 31, an angle adjuster 312 is hingedly connected to the top of the elevation adjustment frame 311, and a "X"-shaped bracket 313 is installed in the middle of the angle adjuster 312, and the two sides of the "X"-shaped bracket 313 are respectively hinged to the cross bar 315 provided at the bottom through an arc-shaped pulling connecting rod 314;

[0111] A column 316 is vertically provided in the middle of the "X"-shaped bracket 313, and an angle conversion motor 32 for changing the unloading angle is supported at the top of the column 316;

[0112] A concave conveying plate 321 is installed at the output end of the angle conversion motor 32, a conveying crawler 322 is placed at the middle groove position of the concave conveying plate 321, and crawler belt tightening rollers 323 are respectively provided at both ends of the conveying crawler belt 322. The two crawler belt tightening rollers 323 are connected by a driven pulley, and one of the crawler belt tightening rollers 323 is connected by a motor 324 installed outside the concave conveying plate 321;

[0113] An asphalt concrete raw material delivery box 325 is provided at the top of the concave conveying plate 321, and a discharge plate 326 is provided at the bottom of the asphalt concrete raw material delivery box 325;

[0114] The unloading plate 326 is directly opposite to one end of the conveying track 322;

[0115] An operating support plate 33 is installed on the top side of the column 316;

[0116] A sunshade bracket 331 is provided at the middle of the top of the operating support plate 33, a sunshade bracket 332 is provided at the top of the sunshade bracket 331, and an operating handle 333 is installed on the back of the operating support plate 33;

[0117] An asphalt brushing frame 34 is installed at the middle of the bottom end of the concave conveying plate 321. The middle of the asphalt brushing frame 34 is provided with an I-shaped telescopic frame 341. The end of the I-shaped telescopic frame 341 is telescopically provided with an asphalt spraying pipe 342.

[0118] A branch sprayer 343 is provided at the bottom of the asphalt spraying pipe 342;

[0119] The asphalt is sprayed corresponding to the pipe connection end of the asphalt spraying pipe 342 by using the operating handle 333 .

[0120] The surface of the asphalt brushing frame 34 is provided with a conduit connection seat 344, a delivery hose 345 passes through the middle of the top of the conduit connection seat 344, one end of the delivery hose 345 is connected to an asphalt booster delivery pump 346, the liquid outlet of the asphalt booster delivery pump 346 is connected to the delivery hose 345, and the liquid injection port is connected to the asphalt processing tank 35;

[0121] The bottom of the asphalt processing tank 35 is connected to a constant temperature heating seat 351, and the auxiliary heating end of the constant temperature heating seat 351 is in contact with the bottom of the asphalt processing tank 35;

[0122] An asphalt transfer port 352 is provided at the top of the asphalt processing tank 35, and the top of the asphalt transfer port 352 is connected to the suction end of the asphalt booster delivery pump 346;

[0123] The asphalt booster delivery pump 346 and the asphalt processing tank 35 are detachable;

[0124] A maintenance plate 353 is provided on the side of the asphalt processing tank 35;

[0125] The asphalt transfer port 352 is used to extract the asphalt from the interior of the asphalt processing tank 35 for transporting asphalt.

[0126] The inner wall of the placement box 13 is also provided with a vibration compaction mechanism 7 for compacting the road surface;

[0127] The vibration compaction mechanism 7 includes a control handle 71 connected by a snap-fit, a compaction exciter 72 is provided at the bottom of the control handle 71, a compaction exciter 73 is provided at the bottom of the compaction exciter 72, a buffer spring 74 is provided on the outer wall of the exciter rod 73, a conical exciter 75 is provided at the bottom end of the buffer spring 74, and a vibration plate 76 is provided at the bottom of the conical exciter 75.

[0128] The push rod 692 and the corresponding excitation rod 73 are convenient for achieving high-intensity vibration of one end of the conical exciter 75.

[0129] Step 4: Delivery and filling of concrete raw materials;

[0130] The key point of this technology is that: the personnel need to operate the maintenance mechanism 3, at this time, the operating handle 333 in the maintenance mechanism 3 is held with both hands, and then the rotating disk 31 is rotated to change the overall delivery direction, and when the pit is found, the construction progress needs to send another person to record the construction steps;

[0131] The discharge elevation angle is changed by hinged connection of the middle crossbar 315. At this time, the angle change motor 32 is manually controlled to change the elevation direction of the conveyor crawler 322, so that the discharged concrete can be dealt with according to the pit depth. Then the motor 324 is turned on to drive one of the crawler tensioning rollers 323 to rotate, and the belts set on one side are rotated. In this way, both of them rotate, and the conveyor crawler 322 on the surface completes the rotation. Finally, the concrete sand and gravel mud mixture can be delivered from the asphalt concrete raw material delivery box 325.

[0132] The raw materials are delivered along the discharge plate 326 and then the conveyor belt 322, and finally the materials are discharged into the geotextile and the notch pit;

[0133] The sunshade during the implementation phase, and then rely on the sunshade 332 to eliminate the hot and hot sun during the construction phase;

[0134] Then the vibration compaction mechanism 7 is temporarily activated to expel the air from the sand and gravel carried by the cement concrete through intense vibration and compaction;

[0135] One member needs to get off and push the linear sliding block 62 along the linear sliding track 61. During the pushing stage, the entire geotextile laying mechanism 6 and the rear of the placement box 13 present a space for people to get off;

[0136] After getting off the vehicle, remove the vibration compaction mechanism 7 mounted on one side of the placement box 13;

[0137] The control handle 71 is held and the compaction exciter 72 is powered on, which drives the excitation rod 73 to shake, and the buffer spring 74 stabilizes the specific vibration frequency, which is then transmitted to the cone exciter 75 and the excitation plate 76 to compact the position of the concrete delivery pit;

[0138] Next, the position of the concave feed plate 321 is slightly lowered, and the asphalt brushing frame 34 installed at the plate mouth can continue to add asphalt;

[0139] First, the asphalt is stored in a heat-insulated viscous state in the asphalt processing tank 35. The asphalt booster pump 346 is disassembled to reveal the asphalt transfer port 352. After the asphalt is injected, it is ready for discharge.

[0140] Secondly: In order to prevent solidification from affecting extraction, the temperature is ensured by the constant temperature heating seat 351;

[0141] Then connect back to the asphalt booster delivery pump 346;

[0142] Then: the asphalt is pumped out by the asphalt booster delivery pump 346, and the asphalt is transferred along the delivery hose 345 to the asphalt brushing rack 34;

[0143] The conduit connection seat 344 will complete the asphalt discharge from both ends at the same time, and the discharge distance between them can be adjusted by the I-type telescopic frame 341;

[0144] Use: The asphalt is transported by the asphalt spraying pipe 342, and then the branch sprayer 343 evenly sprays the asphalt that is not viscous enough at high temperature on the area just filled with concrete and gravel, so that it adheres to the surface and completes the repair of cracks or potholes in the roadbed after cooling;

[0145] The vibrating plate 76 can also be used to perform a compaction process again.

[0146] Embodiment 5:

[0147] Please refer to the instruction manual Figure 16-Figure 19 As shown: the panoramic video recording mechanism 4 includes a panoramic camera mounter 41 installed on the top of the sunshade awning 332, an electric lifter 42 is installed at the middle of the top of the panoramic camera mounter 41, a camera ball 43 is installed at the top of the electric lifter 42, and a plurality of panoramic video lenses 44 are installed on the surface of the camera ball 43. The panoramic video lenses 44 record construction videos and pictures and count construction progress information;

[0148] The interior of the camera ball 43 is wirelessly connected to the cloud processing server via a built-in wireless transceiver unit.

[0149] The implementation is carried out by using a panoramic video camera 44 and implementing statistical information on the construction progress.

[0150] The road condition positioning mechanism 5 is used to determine the construction progress and update the image of the road surface during construction and maintenance;

[0151] The road condition positioning mechanism 5 includes a handheld recording bracket 51 placed on the side of the placement box 13, the end of the handheld recording bracket 51 is fitted with a display terminal mounting bracket 52, the surface of the display terminal mounting bracket 52 is mounted with a display terminal 53, an arc bracket 54 is provided at the bottom of the handheld recording bracket 51, and a recording probe 55 is installed at the end of the arc bracket 54, and the recording probe 55 is electrically connected to the display terminal 53. The video information stored in the display terminal 53 is wirelessly interactively recorded with the management system constructed by the server through a wireless transceiver module.

[0152] Correct the construction progress and supplement the actual road conditions during construction.

[0153] The input probe 55 is equipped with a coordinate locator 56 , which marks the construction location through the Beidou navigation and positioning system.

[0154] The corresponding image is displayed using the input probe 55 and the display terminal 53;

[0155] Step 5: Combination of construction progress, road section repair location, and acceptance image electronic map over a period of time;

[0156] It is similar to food delivery technology, but with the addition of video cloud monitoring in the patching process;

[0157] Features: (1) Calculated on a daily basis, real-time monitoring of the progress of road repairs;

[0158] (2) Navigation road condition map, with markers (labels) displayed on the map. When clicked, some construction progress images, actual road condition 3D map, and real-time zoom in on the road condition of the repaired area or the repaired area;

[0159] This step implements:

[0160] The realization of 3D map first relies on the panoramic video recording mechanism 4, so that the panoramic video camera 43 completes the 360-degree viewing angle pictures (or images) of the fish screen type from all directions;

[0161] Through multiple panoramic video lenses 44, a portion of the video perspective is taken for each area recorded, and the images formed by the lenses arranged gradually around the circle are naturally 360-degree perspectives. When the personnel find the problematic pothole, they only need to be automatically triggered by the longitude and latitude coordinate marker 26 to automatically start the panoramic video recording. There is no need to record the entire road section. Only the road section with the problem is recorded and automatically uploaded in combination with the cloud function. In this way, during construction, this lens can be used to check the potholes before the construction is discovered;

[0162] During the repair phase, when pouring concrete, sand and gravel, or when distributing geotextiles, the 3D image input timing can be realized;

[0163] It makes it easier to create repair archives later. The time capsule archives sorted by time for each road repair patch at the end of the year are more meaningful for reference.

[0164] At this stage, in order to record the complete progress of the repair filling, it is convenient to drive away if the repair cannot be completed within one day. Later, it will be marked on the system through a map, so that the construction team can log in to the special internal repair system and then find it and continue the repair;

[0165] Therefore, the recording probe 55 and the arc bracket 54 are used together, and the recording probe 55 is manually held at the position of the handheld recording bracket 51, and the recording probe 55 is illuminated at the position of the pothole that has not been constructed. Later, it can be used as a reference for the position positioning of other driving teams, repair personnel or roadblock placement personnel;

[0166] The advantage is that the results of such inspections can be shared with other vehicles. If there is a major problem, it can be reported in advance to prevent accidents when uninformed vehicles pass through such sections.

[0167] By connecting the display terminal 53 to the cloud server system, the map can be seen with the map pins marked by the longitude and latitude coordinate marker 26 and then recorded by the camera ball 43 and the panoramic video lens 44.

[0168] Finally, the road condition positioning mechanism 5 can correct the progress of the repair process or perform the finishing work after the repair is completed;

[0169] It runs through the entire repair and maintenance process of asphalt concrete overlay roads;

[0170] The combination of data and maps provides other construction teams with convenient navigation and locating of geographical locations, whether for dispatch or cooperation.

[0171] Whether it is repair or road condition, asphalt pavement quality inspection is extremely helpful.

[0172] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. A preventive maintenance system for a highway pavement based on an asphalt concrete overlay, comprising a bearing mechanism (1), a detection mechanism (2), a maintenance mechanism (3), a panoramic video recording mechanism (4) and a road condition positioning mechanism (5); Features: The carrying mechanism (1) carries the maintenance equipment for movement; The detection mechanism (2) detects and analyzes road surface depressions; The maintenance mechanism (3) locates the depressed area to carry out maintenance and repair, and feeds maintenance materials; The panoramic video recording device (4) records the road conditions with its own three-dimensional perspective and checks the progress images of the maintenance section in real time; The road condition positioning mechanism (5) marks the location where the road surface repair is to be carried out and implements electronic file indexing; The carrying mechanism (1) comprises four independent moving wheels (11), a carrying bracket (12) and a placement box (13); The moving wheels (11) are respectively installed at both ends of the bearing bracket (12), and the placement box (13) is concave in shape and arranged on the top of the bearing bracket (12); The end of the placement box (13) is connected to a traction tripod (14), and a traction head (15) is provided at the end of the traction tripod (14); The maintenance mechanism (3) comprises a rotating disk (31) attached to the middle of the top of the placement box (13); an elevation adjustment frame (311) is provided in the middle of the rotating disk (31); an angle adjuster (312) is hingedly connected to the top of the elevation adjustment frame (311); a "J"-shaped bracket (313) is installed in the middle of the angle adjuster (312); and two sides of the "J"-shaped bracket (313) are hingedly connected to a cross bar (315) provided at the bottom through an arc-shaped pulling connecting rod (314); A column (316) is vertically arranged in the middle of the "X"-shaped bracket (313), and an angle conversion motor (32) for changing the discharge angle is supported at the top end of the column (316); A concave conveying plate (321) is installed at the output end of the angle conversion motor (32), a conveying crawler (322) is placed in the middle groove of the concave conveying plate (321), and crawler tightening rollers (323) are provided at both ends of the conveying crawler (322), and the two crawler tightening rollers (323) are connected by a driven pulley, and one of the crawler tightening rollers (323) is connected by a motor (324) installed outside the concave conveying plate (321); An asphalt concrete raw material delivery box (325) is provided on the top of the concave conveying plate (321), and a discharge plate (326) is provided on the bottom of the asphalt concrete raw material delivery box (325); The discharge plate (326) is directly opposite to one end of the conveying crawler belt (322).

2. The highway pavement preventive maintenance system based on asphalt concrete overlay according to claim 1 is characterized by: An operating support plate (33) is installed on the top side of the column (316); A sunshade bracket (331) is provided at the middle of the top of the operating support plate (33), a sunshade (332) is provided at the top of the sunshade bracket (331), and an operating handle (333) is installed on the back of the operating support plate (33); An asphalt painting frame (34) is installed in the middle of the bottom end of the concave conveying plate (321), an I-shaped telescopic frame (341) is provided in the middle of the asphalt painting frame (34), and an asphalt spraying pipe (342) is telescopically provided at the end of the I-shaped telescopic frame (341); A branch sprayer (343) is provided at the bottom of the asphalt spraying pipe (342).

3. The preventive maintenance system for highway pavement based on asphalt concrete overlay according to claim 2 is characterized in that: The surface of the asphalt brushing frame (34) is provided with a catheter connection seat (344), a delivery hose (345) passes through the middle of the top of the catheter connection seat (344), one end of the delivery hose (345) is connected to an asphalt boost delivery pump (346), the liquid outlet of the asphalt boost delivery pump (346) is connected to the delivery hose (345), and the liquid injection port is connected to the asphalt processing tank (35); The bottom of the asphalt processing tank (35) is connected to a constant temperature heating seat (351), and the auxiliary heating end of the constant temperature heating seat (351) is in contact with the bottom of the asphalt processing tank (35); The top of the asphalt processing tank (35) is provided with an asphalt transfer port (352), and the top end of the asphalt transfer port (352) is connected to the suction end of the asphalt booster delivery pump (346); The asphalt booster delivery pump (346) and the asphalt processing tank (35) are detachable; A maintenance plate (353) is provided obliquely on the side of the asphalt processing tank (35).

4. The highway pavement preventive maintenance system based on asphalt concrete overlay according to claim 1 is characterized by: The front side of the placement box (13) is provided with a geotextile laying mechanism (6); The geotextile laying mechanism (6) comprises a linear sliding track (61) installed on the side wall of the placement box (13), one end of the linear sliding track (61) is provided with a linear sliding block (62), one end of the linear sliding block (62) is provided with a geotextile mounting frame (63), one end of the geotextile mounting frame (63) is provided with a geotextile roller (64), the side of the geotextile roller (64) is provided with a concave frame (65), the surface of the concave frame (65) is fitted with a plurality of spray pipes (66), the side of the concave frame (65) is provided with a trapezoidal cutter (67), the middle of the trapezoidal cutter (67) is provided with a cutting track (68), the top end of the cutting track (68) is provided with a cutting blade (69), the top end of the cutting blade (69) is provided with a cutting sliding block (691), and the top end of the cutting sliding block (691) is provided with a pushing rod (692).

5. The highway pavement preventive maintenance system based on asphalt concrete overlay according to claim 1 is characterized by: The inner side wall of the placement box (13) is also provided with a vibration compaction mechanism (7) for compacting the road surface; The vibration compaction mechanism (7) comprises a control handle (71) connected by a snap-fit, a compaction exciter (72) is provided at the bottom of the control handle (71), a vibration rod (73) is provided at the bottom of the compaction exciter (72), a buffer spring (74) is sleeved on the outer wall of the vibration rod (73), a conical exciter (75) is provided at the bottom end of the buffer spring (74), and a vibration plate (76) is provided at the bottom of the conical exciter (75).

6. The highway pavement preventive maintenance system based on asphalt concrete overlay according to claim 1 is characterized by: The panoramic video recording mechanism (4) comprises a panoramic camera mounter (41) mounted on the top of the sunshade awning (332), an electric lifter (42) is mounted in the middle of the top of the panoramic camera mounter (41), a camera ball (43) is mounted on the top of the electric lifter (42), a plurality of panoramic video lenses (44) are mounted on the surface of the camera ball (43), and the panoramic video lenses (44) record construction videos and pictures and collect construction progress information; The interior of the camera ball (43) is wirelessly connected to the cloud processing server via a built-in wireless transceiver unit.

7. The highway pavement preventive maintenance system based on asphalt concrete overlay according to claim 1 is characterized by: The road condition positioning mechanism (5) is used to measure the construction progress and update the image of the road surface during construction and maintenance; The road condition positioning mechanism (5) comprises a handheld recording bracket (51) placed on the side of the placement box (13); a display terminal mounting frame (52) is fitted on the end of the handheld recording bracket (51); a display terminal (53) is mounted on the surface of the display terminal mounting frame (52); an arc bracket (54) is provided at the bottom of the handheld recording bracket (51); a recording probe (55) is installed at the end of the arc bracket (54); the recording probe (55) is electrically connected to the display terminal (53); the video information stored in the display terminal (53) is wirelessly interactively recorded with a management system constructed by a server through a wireless transceiver module, so as to correct the construction progress and supplement the actual construction road conditions.

8. The highway pavement preventive maintenance system based on asphalt concrete overlay according to claim 7 is characterized by: The input probe (55) is equipped with a built-in coordinate locator (56), and the coordinate locator (56) marks the construction location through the Beidou navigation and positioning system.

9. The highway pavement preventive maintenance system based on asphalt concrete overlay according to claim 1 is characterized by: The detection mechanism (2) comprises an inclined folding bracket (21) connected to the outer walls of both sides of the storage box (13), the end of the inclined folding bracket (21) is hinged with a linkage bearing (22) for deflection, the end of the linkage bearing (22) is supported by a detection plate (23), and a row of ultrasonic flaw detectors (24) are installed at the bottom of the plate surface of the detection plate (23); The bottom of the ultrasonic flaw detector (24) is provided with an identification plate (25), and the side of the identification plate (25) is provided with a longitude and latitude coordinate marker (26).

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