Movable cement road crack repairing and maintaining equipment

Abstract

The application discloses a movable cement road crack repairing and maintaining equipment and relates to the technical field of road maintaining mechanical equipment.The equipment comprises a movable base, a driving mechanism is arranged on the top of the movable base, and a cleaning mechanism is arranged at the bottom of the driving mechanism.The movable cement road crack repairing and maintaining equipment can clean the inner wall and bottom of the crack through the cleaning mechanism, can absorb and clean various impurities in real time, can cooperate with the driving mechanism to work together through a camera, can collect the trend of the road crack in real time, can capture the actual form and position information of the crack, can cooperate with the driving mechanism to quickly regulate and control the transverse and longitudinal positions of the cleaning mechanism, can dynamically adapt to the irregular crack track, can realize the alignment of the cleaning structure and the crack, and can solve the problems of the single function, incomplete cleaning and inaccurate alignment of the cleaning assembly in the existing cement road crack repairing and maintaining equipment.

Description

Technical Field

[0001] This invention relates to the field of road maintenance machinery and equipment technology, specifically a mobile cement road crack repair and maintenance device. Background Technology

[0002] Cement concrete pavement is widely used in various transportation infrastructure scenarios such as urban and rural main roads, rural village roads, industrial and mining area roads and airport runways due to its outstanding advantages such as high overall strength, good structural stability, long service life and low maintenance cost. Cracks are the most common and typical form of pavement distress in cement concrete. If cracks in the pavement are not repaired and maintained in a timely and effective manner, rainwater, mud, sand, small gravel and other impurities will continue to seep into the concrete structure along the cracks, constantly expanding the width and depth of the cracks, gradually destroying the aggregate bonding structure inside the concrete, and thus inducing severe pavement distress such as pavement slab breakage, slab subsidence, misalignment, potholes and other serious pavement distresses.

[0003] However, the existing devices have the following shortcomings during use: Existing cement road crack repair and maintenance equipment mostly adopts a mobile, simple integrated structure. It primarily relies on a mobile frame combined with a storage tank, a quantitative dispensing mechanism, and a simple cleaning component to complete crack repair work. Compared to traditional purely manual repair methods, existing equipment can achieve rapid on-site transport and precise point-to-point operation, adapting to basic maintenance scenarios with scattered outdoor cracks and offering a certain improvement in work efficiency. However, the cleaning components of existing equipment are mostly fixed axial blowing structures or rigid brush structures, resulting in a single operating mode and limited function. They can only sweep away surface dust, loose particles, and large pieces of gravel and debris from road cracks, failing to penetrate deeper into the cracks. The narrow internal space of cracks makes it difficult to remove hardened dust, adhesive silt, and fine residue deposited at the bottom of the cracks. At the same time, existing cleaning components cannot adapt and adjust the cleaning air vents and cleaning brushes to the crack trajectory in real time when dealing with irregular road surface cracks with random curvature at construction sites. This easily creates large cleaning blind spots. Various impurities remaining inside the cracks will form an isolation layer between the concrete substrate and the repair material, directly hindering the tight adhesion between the two. This leads to quality problems such as delamination, hollowing, and detachment of the repair material after filling and curing. The repaired cracks are very likely to crack again in a short period of time, and the durability and stability of crack repair are extremely poor. Summary of the Invention

[0004] The purpose of this invention is to provide a mobile cement road crack repair and maintenance device. It uses an upward-sloping first air vent to blow away hardened dust and adhesive silt adhering to the crack sidewalls, and a second air vent at the bottom to flush away fine residue deposited at the crack bottom. Combined with the brush bristles on the outer side of the flexible sleeve, it can scrub the inner walls and bottom of the crack. Simultaneously, an annular block, in conjunction with a dust-collecting structure, can absorb various impurities generated during blowing and scrubbing in real time. Furthermore, it works in conjunction with a camera and drive mechanism to collect real-time data on the direction of road cracks, capturing their actual shape and location. The drive mechanism can quickly adjust the lateral and longitudinal positions of the cleaning mechanism, dynamically adapting to irregular crack trajectories, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mobile cement road crack repair and maintenance device, comprising a mobile base, a driving mechanism being provided on the top of the mobile base, and a cleaning mechanism being provided on the bottom of the driving mechanism; The cleaning mechanism includes an annular block, a hollow cleaning rod, and a camera. The driving mechanism is used to drive the annular block, the hollow cleaning rod, and the camera to synchronously complete lifting, lateral, and longitudinal movements. The annular block has a cavity inside, and the bottom of the annular block has several suction holes that communicate with the cavity. The outer surface of the hollow cleaning rod is covered with a flexible sleeve, and several bristles are fixedly connected to the outer surface of the flexible sleeve. Both the outer surface of the hollow cleaning rod and the outer surface of the flexible sleeve have several first air blowing holes, and the several first air blowing holes are inclined upwards. The bottom of the hollow cleaning rod and the bottom of the flexible sleeve both have several second air blowing holes.

[0006] Preferably, the driving mechanism includes two first T-slots formed on the top of the movable base, a first movable seat slidably connected in the two first T-slots, and a first electric telescopic rod provided on the top of the movable base, the telescopic end of the first electric telescopic rod being fixedly connected to the first movable seat.

[0007] Preferably, a second electric telescopic rod is fixedly installed on the top of the first movable seat. The telescopic end of the second electric telescopic rod movably passes through the first movable seat and is fixedly connected to a lifting plate. Two second T-shaped grooves are opened at the bottom of the lifting plate. A second movable seat is slidably connected in the two second T-shaped grooves. The annular block, the hollow cleaning rod, and the camera are installed at the bottom of the second movable seat, and the annular block is sleeved on the outer surface of the hollow cleaning rod.

[0008] Preferably, a third electric telescopic rod is provided at the bottom of the lifting plate, the telescopic end of the third electric telescopic rod is fixedly connected to the second movable seat, and a plurality of movable rods are fixedly connected to the top of the lifting plate, the plurality of movable rods being movably inserted through the first movable seat.

[0009] Preferably, a dust collection hood is fixedly connected to the bottom of the annular block, a support frame is fixedly connected to the top of the first movable seat, an air pump is installed on the top of the support frame, the output end of the air pump is fixedly connected to a first telescopic flexible tube, and the end of the first telescopic flexible tube away from the air pump passes through the second movable seat and is connected to the interior of the hollow cleaning rod.

[0010] Preferably, a filter box is installed on the top of the support frame, and a second telescopic flexible tube is fixedly connected to the bottom of the filter box. The end of the second telescopic flexible tube away from the filter box passes through the support frame, the first movable seat, the second movable seat and the annular block and is connected to the cavity.

[0011] Preferably, a dust pump is installed on one side of the filter box, and a mounting frame is provided on the top of the filter box, with a filter screen fixedly connected to the inner side of the mounting frame.

[0012] Preferably, a repair mechanism is provided on one side of the second movable seat, the repair mechanism includes a nozzle provided on one side of the second movable seat, a storage cylinder is installed on the top of the movable base, and a metering pump is installed on the top of the support frame.

[0013] Preferably, the output end of the metering pump is fixedly connected to a third telescopic flexible tube, the end of the third telescopic flexible tube away from the metering pump is connected to the interior of the nozzle, and the input end of the metering pump is fixedly connected to a fourth telescopic flexible tube, the end of the fourth telescopic flexible tube away from the metering pump is connected to the interior of the storage cylinder.

[0014] Preferably, the bottom of the mobile base is equipped with several casters with braking function, and a PLC controller is installed on one side of the mobile base.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention features a cleaning mechanism. An upward-sloping first air vent blows away hardened dust and adhered silt adhering to the crack sidewalls, while a second air vent at the bottom flushes away fine residue deposited at the crack bottom. Combined with brush bristles on the outer side of a flexible sleeve, the inner walls and bottom of the crack can be scrubbed. Simultaneously, an annular block, working with a dust-collecting structure, can collect various impurities generated during blowing and scrubbing in real time. Furthermore, a camera and drive mechanism work together to collect real-time data on the direction of road cracks, capturing their actual shape and location. The drive mechanism rapidly adjusts the lateral and longitudinal positions of the cleaning mechanism, dynamically adapting to irregular crack trajectories and achieving alignment between the cleaning structure and the crack. This solves the problems of limited functionality, incomplete cleaning, and inaccurate alignment in existing cement road crack repair and maintenance equipment.

[0016] This invention, through the setting of a drive mechanism, utilizes a first, second, and third electric telescopic rod in conjunction with a T-shaped sliding groove to drive the cleaning structure and camera to synchronously complete multi-directional lateral and longitudinal displacement adjustments. This achieves adaptive adaptation of the cleaning trajectory. Compared to the shortcomings of traditional equipment with fixed cleaning structures that cannot adapt to irregular curved cracks, this equipment can rely on the camera to collect images of the crack's direction in real time. Combined with the drive mechanism, it can precisely control the cleaning position, ensuring that the hollow cleaning rod and the ring-shaped cleaning structure always conform to the crack's trajectory, effectively eliminating cleaning blind spots and improving equipment adaptability and operational flexibility.

[0017] This invention, through its repair mechanism, allows the equipment to complete crack cleaning and impurity adsorption. After the equipment completes the crack cleaning and impurity adsorption, the hollow cleaning rod can be driven by the drive mechanism to rise and detach from the crack area. Then, the camera captures the road crack image a second time to verify the crack direction and size, accurately locating the area to be repaired. Simultaneously, the drive mechanism drives the repair mechanism to adapt to the crack trajectory and complete the alignment adjustment. It then connects to the crack location to carry out quantitative slurry filling. This integrated cleaning and repair process simplifies the crack repair and maintenance process, effectively reduces manual labor intensity, and improves the efficiency of on-site automated operation and the quality of repair. Attached Figure Description

[0018] Figure 1 This is a perspective view of the main structure of a portable cement road crack repair and maintenance device according to the present invention. Figure 2 This is a three-dimensional view of the right side of a portable cement road crack repair and maintenance device according to the present invention. Figure 3 This is a perspective view of the bottom structure of a portable cement road crack repair and maintenance device according to the present invention. Figure 4 This is a perspective view of the rear structure of a portable cement road crack repair and maintenance device according to the present invention. Figure 5 This is a three-dimensional structural view of the second electric telescopic rod in a portable cement road crack repair and maintenance device of the present invention; Figure 6 This is a perspective view of the unfolded structure of the mounting frame and filter box in a portable cement road crack repair and maintenance device of the present invention. Figure 7 for Figure 3 Enlarged 3D view of the structure at point A in the middle.

[0019] In the picture: 1. Movable base; 2. Drive mechanism; 201. First T-slot; 202. First movable seat; 203. First electric telescopic rod; 204. Second electric telescopic rod; 205. Lifting plate; 206. Second T-slot; 207. Second movable seat; 208. Third electric telescopic rod; 209. Movable rod; 3. Cleaning mechanism; 301. Annular block; 302. Hollow sweeping rod; 303. Camera; 304. Suction hole; 305. Flexible sleeve; 306. Brush bristles; 30 7. First air blower; 308. Second air blower; 309. Dust collection hood; 310. Support frame; 311. Air pump; 312. First telescopic flexible tube; 313. Filter box; 314. Second telescopic flexible tube; 315. Dust pump; 316. Mounting frame; 317. Filter screen; 4. Repair mechanism; 401. Nozzle; 402. Storage cylinder; 403. Metering pump; 404. Third telescopic flexible tube; 405. Fourth telescopic flexible tube; 5. Casters; 6. PLC controller. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-7 As shown, the embodiment provides a mobile cement road crack repair and maintenance device, including a mobile base 1, a drive mechanism 2 is provided on the top of the mobile base 1, and a cleaning mechanism 3 is provided on the bottom of the drive mechanism 2. The cleaning mechanism 3 includes an annular block 301, a hollow cleaning rod 302, and a camera 303. The driving mechanism 2 is used to drive the annular block 301, the hollow cleaning rod 302, and the camera 303 to synchronously complete lifting, lateral, and longitudinal movements. The annular block 301 has a cavity inside, and several dust suction holes 304 connected to the cavity are opened at the bottom of the annular block 301. A flexible sleeve 305 is fitted on the outer surface of the hollow cleaning rod 302, and several bristles 306 are fixedly connected to the outer surface of the flexible sleeve 305. Several first air blowing holes 307 are opened on the outer surface of the hollow cleaning rod 302 and the outer surface of the flexible sleeve 305, and the several first air blowing holes 307 are inclined upward. Several second air blowing holes 308 are opened at the bottom of the hollow cleaning rod 302 and the bottom of the flexible sleeve 305. The camera 303 is a Hikvision MV-SCC010M-08M-WBN industrial vision camera.

[0022] like Figure 1 and Figure 4As shown, the drive mechanism 2 includes two first T-slots 201 opened on the top of the movable base 1. A first movable seat 202 is slidably connected in the two first T-slots 201. A first electric telescopic rod 203 is provided on the top of the movable base 1. The telescopic end of the first electric telescopic rod 203 is fixedly connected to the first movable seat 202. By opening the first T-slots 201 on the top of the movable base 1, the first movable seat 202 is limited and slidably engaged. The first electric telescopic rod 203 provides a stable longitudinal driving force. The structure of the first T-slots 201 can realize the functions of preventing detachment, preventing deviation, and limiting guidance during the sliding process of the first movable seat 202, ensuring high longitudinal displacement accuracy and smooth operation without jamming. The first electric telescopic rod 203 is rigidly driven, the displacement is controllable, and the start and stop are precise. The working position can be finely adjusted in real time according to the longitudinal extension length and bending deviation of the road surface crack.

[0023] like Figure 1 , Figure 5 and Figure 7 As shown, a second electric telescopic rod 204 is fixedly installed on the top of the first movable base 202. The telescopic end of the second electric telescopic rod 204 movably passes through the first movable base 202 and is fixedly connected to a lifting plate 205. Two second T-slots 206 are opened at the bottom of the lifting plate 205. A second movable base 207 is slidably connected in the two second T-slots 206. An annular block 301, a hollow sweeping rod 302, and a camera 303 are installed at the bottom of the second movable base 207, and the annular block 301 is sleeved on the outer surface of the hollow sweeping rod 302. The vertical movement of the entire working assembly is achieved through the second electric telescopic rod 204. The lifting mechanism, in conjunction with the sliding engagement of the second T-slot 206 at the bottom of the lifting plate 205 and the second movable seat 207, forms a base structure for three-dimensional adjustment of the equipment. The second electric telescopic rod 204 can control the descent depth and lifting height of the cleaning mechanism 3 and the repair mechanism 4. It can adaptively adjust the insertion depth of the hollow sweeping rod 302 according to the depth of different cracks and the thickness of the road surface, avoiding the problems of incomplete cleaning due to shallow insertion and secondary damage caused by squeezing the inner wall of the crack due to excessive insertion. The second T-slot 206 provides a high-precision sliding track for lateral adjustment, ensuring that the lateral displacement of the second movable seat 207 is stable, with small gaps and high alignment accuracy.

[0024] like Figure 5 and Figure 7As shown, a third electric telescopic rod 208 is provided at the bottom of the lifting plate 205. The telescopic end of the third electric telescopic rod 208 is fixedly connected to the second movable seat 207. Several movable rods 209 are fixedly connected to the top of the lifting plate 205. Several movable rods 209 move through the first movable seat 202. The second movable seat 207 is driven to slide laterally by the third electric telescopic rod 208. With the cooperation of multiple sets of movable rods 209 through the guide structure, the dual effects of lateral fine adjustment and stable lifting are achieved. The third electric telescopic rod 208 controls the lateral displacement and can make millisecond-level precise fine adjustments for the left and right bending and width deviation of the crack, adapting to various irregular road surface cracks. The multiple movable rods 209 provided at the top of the lifting plate 205 form a multi-point limiting guide for the vertical lifting movement driven by the second electric telescopic rod 204, effectively counteracting the lateral torque and sway generated during the extension and retraction of the second electric telescopic rod 204, ensuring that the hollow sweeping rod 302 extends vertically into the crack.

[0025] like Figure 5 and Figure 7 As shown, a dust collection hood 309 is fixedly connected to the bottom of the annular block 301, and a support frame 310 is fixedly connected to the top of the first movable seat 202. An air pump 311 is installed on the top of the support frame 310, and the output end of the air pump 311 is fixedly connected to a first telescopic flexible tube 312. The end of the first telescopic flexible tube 312 away from the air pump 311 passes through the second movable seat 207 and is connected to the interior of the hollow sweeping rod 302. By setting the air pump 311 in conjunction with the first telescopic flexible tube 312 to provide a high-pressure air source for the hollow sweeping rod 302, and in conjunction with the dust collection hood 309 at the bottom of the annular block 301, an all-round high-pressure blowing operation system is constructed. The air pump 311 can stably output high-pressure airflow with independent air supply. The air pressure is controllable, the wind force is uniform, and it can continuously... Sufficient blowing power is provided to the first upward-sloping air hole 307 and the second bottom air hole 308 on the hollow sweeping rod 302 and the flexible sleeve 305, ensuring that the hardened mud and sand on the sidewall of the crack and the fine dust at the bottom can be effectively blown away; the first telescopic flexible tube 312 can freely extend, retract and bend with the lifting, lateral and longitudinal displacement, without the phenomenon of pipe pulling, jamming or air leakage, ensuring the continuous and stable airflow during dynamic operation; the integrated dust collection hood 309 at the bottom of the annular block 301 can collect the dust and debris raised by the sweeping in all directions, preventing the dust from overflowing and spreading and the secondary dust falling on the road surface, realizing a closed-loop operation of sweeping, collecting and removing dust at the same time, effectively improving the working environment at the construction site, while ensuring that there is no residual floating dust inside the crack.

[0026] like Figure 1 , Figure 5 and Figure 7As shown, a filter box 313 is installed on the top of the support frame 310, and a second telescopic flexible tube 314 is fixedly connected to the bottom of the filter box 313. The end of the second telescopic flexible tube 314 away from the filter box 313 passes through the support frame 310, the first movable seat 202, the second movable seat 207 and the annular block 301 and is connected to the cavity. The filter box 313 and the internal cavity of the annular block 301 are connected through the second telescopic flexible tube 314 to form a complete negative pressure dust collection and conveying channel, realizing the directional suction and centralized collection of impurities in the cracks. The second telescopic flexible tube 314 has the ability to deform according to shape, which can fully adapt to the multi-dimensional and multi-directional displacement adjustment of the cleaning mechanism 3, and keep the pipeline sealed and unobstructed throughout the process, avoiding the defects of traditional rigid pipelines that cannot move with the flow, are easy to break, and leak negative pressure. The overall cavity pressure uniform design of the annular block 301 makes all the dust collection holes 304 at the bottom uniformly negative pressure suction, realizing full coverage adsorption of the crack port, and avoiding the problems of weak local suction and residue residue.

[0027] like Figure 1 , Figure 5 and Figure 6 As shown, a dust pump 315 is installed on one side of the filter box 313, and a mounting frame 316 is provided on the top of the filter box 313. A filter screen 317 is fixedly connected to the inner side of the mounting frame 316. The dust pump 315 provides a continuous and stable negative pressure. With the detachable mounting frame 316 and filter screen 317, the integrated function of negative pressure dust removal, impurity filtration, and equipment protection is realized. The dust pump 315 can provide constant negative pressure suction, which is not affected by the airflow of the air pump 311, ensuring that the high and low wind pressure do not affect each other, and the fine dust blown up is effectively removed. Micro dust and micron-sized residues can be completely adsorbed; the top detachable mounting frame 316 design allows the filter 317 to be quickly disassembled, cleaned, and replaced, reducing the difficulty and cost of daily equipment maintenance; the filter 317 can effectively intercept all solid impurities such as mud, dust, and gravel, preventing impurities from entering the dust pump 315 and causing impermeable wear, blockage, or burnout, thus extending the service life of the dust pump 315, ensuring the stability of the equipment during long-term continuous outdoor construction, and avoiding construction interruptions due to equipment failure.

[0028] like Figure 1 , Figure 5 and Figure 7As shown, a repair mechanism 4 is provided on one side of the second movable seat 207. The repair mechanism 4 includes a nozzle 401 located on one side of the second movable seat 207, a storage cylinder 402 installed on the top of the movable base 1, and a metering pump 403 installed on the top of the support frame 310. By integrating the nozzle 401 of the repair mechanism 4 with the cleaning mechanism 3, integrating the storage cylinder 402 on the top of the movable base 1, and centrally arranging the metering pump 403 on the top of the support frame 310, the crack cleaning and crack repair structure are integrated. The nozzle 401 moves synchronously with the second movable seat 207 and maintains a synchronous trajectory with the hollow sweeping rod 302 and the camera 303 positioning components. After cleaning, there is no need for secondary alignment or manual re-finding of cracks. The grouting process can be directly switched, achieving seamless connection between cleaning, dust removal, and grouting.

[0029] like Figure 5 and Figure 7 As shown, the output end of the metering pump 403 is fixedly connected to a third telescopic flexible tube 404. The end of the third telescopic flexible tube 404 away from the metering pump 403 is connected to the interior of the nozzle 401. The input end of the metering pump 403 is fixedly connected to a fourth telescopic flexible tube 405. The end of the fourth telescopic flexible tube 405 away from the metering pump 403 is connected to the interior of the storage cylinder 402. The nozzle 401 is directly connected through the third telescopic flexible tube 404, which can follow the multi-dimensional displacement, bending, and telescopic movement of the nozzle 401, keeping the material conveying pipeline unobstructed and sealed throughout the process.

[0030] like Figure 1 , Figure 5 and Figure 7 As shown, the bottom of the mobile base 1 is equipped with several casters 5 with braking function. A PLC controller 6 is installed on one side of the mobile base 1. The equipment can be flexibly transported and locked at fixed points through the casters 5 with braking function at the bottom of the mobile base 1. The PLC controller 6 on the side wall of the mobile base 1 can centrally control all electric, pneumatic and pumping components to realize intelligent and fully automatic operation of the equipment. The PLC controller 6 can realize the multi-process linkage and automated operation of the camera 303 for visual recognition, trajectory calculation, multi-axis electric telescopic rod displacement adjustment, air pump 311 blowing, dust pump 315 dust collection, and metering pump 403 grouting. There is no need for manual operation of each component. The operation parameters are precise and controllable, with good repeatability and low human error.

[0031] The usage and working principle of this device: During the equipment positioning and fixing stage, push the mobile base 1, and move the equipment to the work area of ​​the cement pavement crack to be repaired by the universal wheels 5 with brakes at the bottom. Lock the universal wheels 5 brakes to complete the overall fixing of the equipment. In the visual positioning and trajectory adaptation adjustment stage, the second electric telescopic rod 204 is activated first, which drives the lifting plate 205 to descend vertically, extending the hollow sweeping rod 302 into the crack. Then, the operation program is started through the PLC controller 6, and the equipment camera 303 is automatically turned on to collect data such as the overall direction, curvature, and width of the road crack in real time. The system automatically identifies irregular crack trajectories. Based on the collected image data, the system automatically adjusts the first electric telescopic rod 203 and the third electric telescopic rod 208, driving the first moving seat 202 and the second moving seat 207 to slide along the first T-slot 201 and the second T-slot 206 to adapt to the horizontal trajectory of the crack, completing the initial alignment of the cleaning mechanism 3, so that the hollow sweeping rod 302 is aligned with the center position of the crack opening. For deep cleaning of cracks and negative pressure dust removal, after the hollow cleaning rod 302 is in place, the air pump 311 and the dust pump 315 are started simultaneously. The air pump 311 supplies air through the first telescopic flexible tube 312, and the first blowing hole 307 and the second blowing hole 308 form a multi-angle blowing airflow. Together with the outer bristles 306 of the flexible sleeve 305, the inner wall and bottom of the crack are brushed. At the same time, under the action of negative pressure, the annular block 301 sucks the dust and residue generated by blowing and brushing into the filter box 313 through the bottom dust suction hole 304 and the dust collection hood 309 in real time for filtration and collection. During the operation, the drive mechanism 2 follows the bending trajectory of the crack and adjusts the horizontal position in real time, with no blind spots in the cleaning process, until the cleaning operation of the entire crack is completed. During the repair alignment stage, after the single-segment crack is cleaned, the second electric telescopic rod 204 is retracted by the PLC controller 6, which drives the hollow cleaning rod 302 away from the crack. Then, the camera 303 takes another picture of the entire crack to lock the path and size of the crack to be repaired. The drive mechanism 2 automatically fine-tunes the position of the second moving seat 207 to align the nozzle 401 of the side repair mechanism 4 with the center of the crack. The PLC controller 6 sets the slurry output parameters and travel adaptation parameters and starts the metering pump 403. The metering pump 403 draws the repair slurry from the storage cylinder 402 through the fourth telescopic flexible tube 405 and delivers it to the nozzle 401 under stable pressure. The nozzle 401 follows the drive mechanism 2 and moves at a constant speed along the crack trajectory to continuously and uniformly inject and fill the crack with quantitative grout, completing the pre-alignment of the repair operation. During the reset and maintenance phase, after the repair of a single crack is completed, the metering pump 403 is turned off to stop grouting. The drive mechanism 2 drives the cleaning mechanism 3 and the nozzle 401 to reset to the initial position. The air pump 311, the dust pump 315 and the camera 303 are turned off in sequence, and the equipment ends its operation. After the road repair slurry has initially cured, the brakes on the caster wheel 5 are released, and the equipment is transferred to the next work point to continue construction. After all the work is completed, the impurities trapped inside the filter box 313 are cleaned, the residual slurry in the nozzle 401 is cleaned, the unobstructed flow of each telescopic flexible pipe is checked, the power of the whole machine is turned off, and the equipment is stored and maintained.

[0032] The wiring diagrams of the first electric telescopic rod 203, the second electric telescopic rod 204, the third electric telescopic rod 208, the camera 303, the air pump 311, the vacuum pump 315, the metering pump 403, and the PLC controller 6 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the first electric telescopic rod 203, the second electric telescopic rod 204, the third electric telescopic rod 208, the camera 303, the air pump 311, the vacuum pump 315, the metering pump 403, and the PLC controller 6 will not be explained in detail.

[0033] Other techniques in this embodiment are based on existing technologies.

[0034] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. A mobile cement road crack repairing and maintaining equipment comprising a mobile base (1), characterized in that: The top of the movable base (1) is provided with a drive mechanism (2), and the bottom of the drive mechanism (2) is provided with a cleaning mechanism (3). The cleaning mechanism (3) includes an annular block (301), a hollow sweeping rod (302), and a camera (303). The driving mechanism (2) is used to drive the annular block (301), the hollow sweeping rod (302), and the camera (303) to simultaneously complete lifting, lateral, and longitudinal movements. The annular block (301) has a cavity inside, and the bottom of the annular block (301) has several suction holes (304) communicating with the cavity. The hollow sweeping rod (302)... 02) The outer surface is fitted with a flexible sleeve (305), and a number of bristles (306) are fixedly connected to the outer surface of the flexible sleeve (305). A number of first air holes (307) are opened on the outer surface of the hollow cleaning rod (302) and the outer surface of the flexible sleeve (305), and the number of first air holes (307) are inclined upward. A number of second air holes (308) are opened on the bottom of the hollow cleaning rod (302) and the bottom of the flexible sleeve (305).

2. The mobile cement road crack repairing and maintaining equipment according to claim 1, characterized in that: The drive mechanism (2) includes two first T-slots (201) opened on the top of the movable base (1), and a first movable seat (202) is slidably connected in the two first T-slots (201). A first electric telescopic rod (203) is provided on the top of the movable base (1), and the telescopic end of the first electric telescopic rod (203) is fixedly connected to the first movable seat (202).

3. The mobile cement road crack repair and maintenance apparatus according to claim 2, wherein: A second electric telescopic rod (204) is fixedly installed on the top of the first movable seat (202). The telescopic end of the second electric telescopic rod (204) passes through the first movable seat (202) and is fixedly connected to a lifting plate (205). Two second T-slots (206) are opened at the bottom of the lifting plate (205). A second movable seat (207) is slidably connected in the two second T-slots (206). The annular block (301), the hollow cleaning rod (302) and the camera (303) are installed at the bottom of the second movable seat (207), and the annular block (301) is sleeved on the outer surface of the hollow cleaning rod (302).

4. The mobile cement road crack repair and maintenance apparatus according to claim 3, wherein: The bottom of the lifting plate (205) is provided with a third electric telescopic rod (208), the telescopic end of the third electric telescopic rod (208) is fixedly connected to the second movable seat (207), and the top of the lifting plate (205) is fixedly connected with a number of movable rods (209), which move through the first movable seat (202).

5. The mobile cement road crack repair and maintenance apparatus according to claim 3, wherein: The bottom of the annular block (301) is fixedly connected to a dust collection hood (309), and the top of the first movable seat (202) is fixedly connected to a support frame (310). An air pump (311) is installed on the top of the support frame (310). The output end of the air pump (311) is fixedly connected to a first telescopic flexible tube (312). The end of the first telescopic flexible tube (312) away from the air pump (311) passes through the second movable seat (207) and is connected to the interior of the hollow cleaning rod (302).

6. The mobile cement road crack repair and maintenance apparatus according to claim 5, wherein: A filter box (313) is installed on the top of the support frame (310), and a second telescopic flexible tube (314) is fixedly connected to the bottom of the filter box (313). The end of the second telescopic flexible tube (314) away from the filter box (313) passes through the support frame (310), the first movable seat (202), the second movable seat (207) and the annular block (301) and is connected to the cavity.

7. The mobile cement road crack repair and maintenance apparatus according to claim 6, wherein: A dust pump (315) is installed on one side of the filter box (313), and a mounting frame (316) is provided on the top of the filter box (313). A filter screen (317) is fixedly connected to the inner side of the mounting frame (316).

8. The mobile cement road crack repair and maintenance apparatus according to claim 5, wherein: A repair mechanism (4) is provided on one side of the second movable seat (207). The repair mechanism (4) includes a nozzle (401) provided on one side of the second movable seat (207). A storage cylinder (402) is installed on the top of the movable base (1). A metering pump (403) is installed on the top of the support frame (310).

9. The mobile cement road crack repair and maintenance apparatus according to claim 8, wherein: The output end of the metering pump (403) is fixedly connected to a third telescopic flexible tube (404). The end of the third telescopic flexible tube (404) away from the metering pump (403) is connected to the inside of the nozzle (401). The input end of the metering pump (403) is fixedly connected to a fourth telescopic flexible tube (405). The end of the fourth telescopic flexible tube (405) away from the metering pump (403) is connected to the inside of the storage cylinder (402).

10. The mobile cement road crack repair and maintenance apparatus according to claim 1, wherein: The bottom of the mobile base (1) is equipped with several casters (5) with braking function, and a PLC controller (6) is installed on one side of the mobile base (1).

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