Road crack detection device

Abstract

The invention relates to the technical field of road detection, in particular to a road crack detection device which comprises a vehicle frame and a camera arranged on the vehicle frame and used for detecting road cracks, and further comprises a brush roller arranged below the vehicle frame and used for cleaning a road, an air knife nozzle capable of discharging air from the road is arranged at the bottom of the vehicle frame, and the air knife nozzle is arranged on the vehicle frame. An air collecting pipe communicating with the air knife nozzle is arranged on one side of the air knife nozzle, and a pressurizing assembly matched with the brush roller in a rotating mode is arranged in the air collecting pipe; the semi-arc plate is rotationally connected to the interior of the frame, a water tank used for storing water is formed in the frame, a plurality of through holes allowing water to pass through are formed in the lower portion of the water tank, a sealing plate matched with the through holes is arranged below the frame, and a drainage assembly matched with the semi-arc plate to drive the sealing plate to move intermittently is arranged at the bottom of the frame. The drainage assembly is arranged to intermittently open the channel at the bottom of the water tank, so that water flow accurately falls on the surface of the brush roller, dynamic wetting is achieved, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of road detection, and in particular to a road crack detection device. Background Art

[0002] Road crack detection is an important part of maintaining highway traffic safety and extending the service life of roads. Traditional road crack detection methods mainly rely on manual inspections, but this method has problems such as low detection efficiency and the detection results are easily affected by subjective factors. With the rapid development of optical technology, the use of optical instruments for road crack detection has become a new, efficient and accurate method. In recent years, with the continuous advancement of digital image processing technology and sensor technology, the application of optical instruments in road crack detection has become more and more extensive. These optical instruments use advanced equipment such as high-resolution cameras and laser scanners to capture tiny details on the road surface and accurately identify and measure cracks through image processing algorithms.

[0003] For example, the patent application with the prior art announcement number CN220005087U proposes a road crack detection device, including a U-shaped mobile frame; a handlebar is installed on the U-shaped mobile frame and a detection member for road detection is installed on the handlebar; a U-shaped opening is formed in the U-shaped mobile frame, a brush member and a fan blade member are installed in the U-shaped opening and the fan blade member is located above the brush member, and a driving member for driving the brush member and the fan blade member to operate at the same time is installed on the U-shaped mobile frame, the brush member is used for cleaning the road, and the fan blade member is used for blowing air and cleaning dust on the brush member. This application proposes a road crack detection device, which solves the problem of inaccurate detection results when there are debris on the road.

[0004] In practical applications, although the above-mentioned prior art uses brushes to clean up debris on the road by cleverly setting them in order to improve the accuracy of subsequent crack detection, this method still has certain limitations when facing complex and changeable road environments. Specifically, impurities on the road, especially those stubborn stains and debris that are firmly adhered to the road surface after repeated rolling by vehicles, are often difficult to achieve ideal cleaning effects by simply relying on the direct contact between the brush and the road surface. These stubborn impurities not only obscure the true appearance of the cracks and increase the difficulty of crack detection, but may also cause wear on the brush and shorten its service life, thereby further affecting the stability and reliability of the detection device. To this end, the present application proposes a road crack detection device. Summary of the invention

[0005] The object of the present invention is to provide a road crack detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a road crack detection device, comprising a frame and a camera disposed thereon and used to detect road cracks, and further comprising: A brush roller is arranged below the frame and is used to clean the road. An air knife nozzle for blowing air to the road is arranged at the bottom of the frame, and an air collecting pipe connected to the air knife nozzle is arranged on one side of the air collecting pipe. A booster assembly that cooperates with the rotation of the brush roller is arranged inside the air collecting pipe. A semi-arc plate is rotatably connected to the interior of the frame, a water tank for storing water is provided inside the frame, and a plurality of through holes for water to pass through are provided below the water tank, a sealing plate adapted to the through holes is provided below the frame, and a drainage assembly adapted to the semi-arc plate to drive the sealing plate to intermittently move is provided at the bottom of the frame; The air supply pipe is connected to one side of the air collecting pipe and is provided with air supply blades inside. The air supply pipe is provided with an air increase component which rotates and operates in coordination with the semi-arc plate.

[0007] Preferably, the boost assembly includes a gap plate fixedly connected to the air collecting pipe, and the air collecting pipe is rotatably connected to a driven wheel inside, and the driven wheel is fixedly connected to an offset plate inside, and the offset plate and the gap plate are offset to block the air collecting pipe, the outer surface of the brush roller is fixedly connected to a driving wheel, and the driving wheel is belt-connected to the driven wheel, one side of the frame is fixedly connected to a first drive motor that drives the brush roller to rotate, the top of the frame is fixedly connected to an air pump, and the output end of the air pump is fixedly connected to an air supply pipe connected to the air collecting pipe.

[0008] Preferably, the drainage assembly includes a bracket fixedly connected to the bottom of the frame, and the bottom of the bracket is rotatably connected to a lever, and the outer surface of the lever is connected to the bracket by a sleeve torsion spring, one end of the lever is rotatably connected to a pull handle rotatably connected to a sealing plate, an eccentric rod is fixedly connected to the inside of the semi-arc plate, and the inside of the frame is rotatably connected to a lever plate that can abut against one end of the lever, and a guide groove for the eccentric rod to slide is provided inside the lever plate.

[0009] Preferably, a plurality of protrusions are evenly and fixedly connected to the outer surface of the semi-arc plate, a drainage groove is opened inside the frame, and a piston spring rod adapted thereto is slidably connected inside the drainage groove, one end of the piston spring rod is rotatably connected to a ball bearing that contacts the protrusions, one end of the drainage groove is connected to a water pipe, and one end of the water pipe extends to the bottom of the frame and is connected to a water nozzle.

[0010] Preferably, the drainage trough is connected to the water tank through a one-way pipe, and the one-way pipe is used to supply water in the water tank into the drainage trough. A one-way valve is fixedly connected to the inside of the water supply pipe, and the one-way valve is used to supply water in the drainage trough into the water nozzle.

[0011] Preferably, the air-increasing component includes a support ring fixedly connected to the air-increasing pipe, a rotating rod fixedly connected to the air-increasing blade is arranged inside the support ring, a guide groove is provided on the outer surface of the rotating rod, and a guide ball slidably connected to the guide groove is fixedly connected to the inside of the support ring.

[0012] Preferably, auxiliary rods are fixedly connected to both sides of the lever plate, and one side of the auxiliary rod is rotatably connected to a transmission handle rotatably connected to the rotating rod.

[0013] Preferably, a counterweight frame is fixedly connected to the top of the frame, a mounting frame is commonly connected between the counterweight frame and the frame, and the camera is threadedly connected to the top of the mounting frame.

[0014] Preferably, a second driving motor for driving the semi-arc plate to rotate is fixedly connected to one side of the frame.

[0015] Preferably, a plurality of driving wheels are evenly mounted on the outer surface of the frame, and a positioner is fixedly connected to the bottom of the frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The brush roller can directly clean the dust, gravel and other debris on the road, providing a clear view for the camera to ensure the accuracy of crack detection. The air knife nozzle can further remove the residue after the brush roller cleaning by spraying high-pressure gas to ensure the cleanliness of the road surface. This pneumatic cleaning method is more efficient than the traditional method and can quickly clean a large area of ​​road. The design of the booster component makes the gas sprayed by the air knife nozzle have greater force, which can more effectively blow away the dust and debris on the road. The rotation of the brush roller is not only used to clean the road, but also drives the driven wheel to rotate through the belt drive, thereby driving the dislocation plate and the gap plate to dislocate intermittently. This design creates a pressure difference between the gas inside the gas manifold being blocked and released, thereby realizing the pressurization of the gas. When the pressurized gas is sprayed through the air knife nozzle, it has a greater impact force and can more effectively clean the stains and residues on the road surface. The camera can capture details of the road surface, including tiny cracks and damage. On the cleaned road, the camera has a clearer field of view and can more accurately identify the location and size of the cracks. The locator can record the position information of the frame in real time. Combined with the image data captured by the camera, it can accurately locate the location of the cracks and provide strong support for subsequent road maintenance. The two drive wheels at the rear of the frame have driving force, and the front drive wheels can change direction, allowing the entire device to move and adjust direction flexibly under different road conditions.

[0017] 2. When the road stains are heavy, the second drive motor drives the semi-arc plate to rotate, and through the cooperation of the eccentric rod and the lever plate, the lever and the handle are intermittently pushed to make the sealing plate reciprocate, thereby intermittently opening the channel at the bottom of the water tank, allowing the water flow to fall accurately on the surface of the brush roller to achieve dynamic wetting. This design avoids a large amount of water flow directly impacting the road surface, reduces the waste of water resources, and improves the wetting effect. The rotation of the semi-arc plate also drives the contact between the bump and the ball, promotes the movement of the piston spring rod in the drainage groove, absorbs water from the water tank and transports it to the water nozzle through the water pipe, and pre-wet the road to be cleaned by the brush roller. This pre-wetting operation improves the cleaning efficiency of the brush roller, enabling it to remove stains more effectively. The design of the drainage assembly enables the water flow to be accurately delivered to the surface of the brush roller or the water nozzle as needed, avoiding the waste of water resources. The use of a one-way pipe and a one-way valve ensures the one-way flow of water, from the water tank to the drainage groove, and then to the water nozzle or the surface of the brush roller, forming an efficient water circulation system. This design achieves precise control and efficient use of water flow by intermittently opening and closing the channel at the bottom of the water tank and using the movement of the piston end of the piston spring rod in the drainage groove to absorb and transport water. The wetted road surface is easier to be cleaned by the brush roller because the water can soften stains and impurities, making them easier to brush off. The rotation of the brush roller is not only used to clean the road, but also drives the driven wheel to rotate through the belt drive, which in turn drives the dislocation plate and the gap plate to dislocate intermittently, pressurizes the air flow, and improves the cleaning efficiency of the air knife nozzle. This design makes the cleaning process more comprehensive and in-depth. At the same time, the pre-wetting operation of the water nozzle also provides good conditions for subsequent brush roller cleaning, further improving the cleaning quality.

[0018] 3. The air blade can effectively block the gas from being discharged through the air pipe when it is stationary, which ensures the stability of the system when there is no need to increase the gas flow. When the lever plate swings, the auxiliary rod and the transmission handle drive the rotating rod to slide in the support ring. The cooperation between the guide groove and the guide bead enables the rotating rod to rotate smoothly, thereby driving the air blade to rotate. The rotation of the air blade not only increases the amount of gas inhaled, but also improves the section with the gas through its mobility, thereby significantly improving the gas transmission efficiency. This design allows more gas to be quickly and effectively delivered to the gas collection pipe. With the rotation of the air blade and the improvement of gas transmission efficiency, more gas is sent into the gas collection pipe, thereby enhancing the exhaust force of the air knife nozzle. Stronger exhaust force means that the air knife nozzle can more effectively blow away stains and impurities on the road surface, improving the efficiency and quality of cleaning. Especially when dealing with stubborn stains or areas that require deep cleaning, the enhanced air knife nozzle can play a greater role. The addition of the air duct and its air-increasing components does not destroy the structure and working principle of the original system, but works closely with each component to optimize the overall performance of the system. For example, when the brush roller is cleaning the road, the air duct and the air-increasing components work simultaneously to provide sufficient air flow and force for the air knife nozzle to ensure the efficiency and smoothness of the cleaning process. At the same time, this design also improves the flexibility and adaptability of the system, enabling it to cope with roads with different levels and types of stains. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a first three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of the present invention without the counterweight frame; Figure 3 It is a schematic diagram of a second three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the structure of the brush roller in the present invention; Figure 5 It is a schematic diagram of the exploded structure of the driven wheel and the gas collecting pipe in the present invention; Figure 6 It is a bottom view structural schematic diagram of the frame of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the frame of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure enlargement in the middle; Fig. 9 It is a structural schematic diagram of the sealing plate in the present invention; Fig.10 It is a structural schematic diagram of the present invention without the frame; Fig.11 It is a schematic diagram of the cross-sectional structure of the semi-arc plate in the present invention; Fig.12 It is a structural schematic diagram of the lever plate in the present invention; Fig.13 It is a schematic diagram of the cross-sectional structure of the air duct added in the present invention; Fig.14 It is a schematic diagram of the exploded structure of the support ring and the rotating rod in the present invention.

[0020] In the figure: 100, frame; 101, driving wheel; 102, counterweight frame; 103, mounting frame; 104, camera; 105, positioner; 200, brush roller; 201, first driving motor; 202, driving wheel; 203, air pump; 204, air pipe; 205, air collecting pipe; 206, air knife nozzle; 207, driven wheel; 208, offset plate; 209, gap plate; 300, semi-arc plate; 301, second driving motor; 302, bump; 303, water tank; 304 , drainage trough; 305, piston spring rod; 306, ball; 307, one-way pipe; 308, water pipe; 309, one-way valve; 310, water nozzle; 311, pull handle; 312, sealing plate; 313, bracket; 314, lever; 400, air duct; 401, lever plate; 402, auxiliary rod; 403, eccentric rod; 404, guide groove; 405, air blade; 406, rotating rod; 407, support ring; 408, guide ball; 409, guide groove; 410, transmission handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 3 The present invention provides a technical solution: a road crack detection device, comprising a frame 100 and a camera 104 arranged thereon and used for detecting road cracks, a counterweight frame 102 is fixedly connected to the top of the frame 100, a mounting frame 103 is commonly connected between the counterweight frame 102 and the frame 100, the camera 104 is threadedly connected to the top of the mounting frame 103, a plurality of driving wheels 101 are evenly installed on the outer surface of the frame 100, a positioner 105 is fixedly connected to the bottom of the frame 100, wherein the two driving wheels 101 located at the rear of the frame 100 have driving force, and the driving wheel 101 located at the front can change direction to adjust the moving angle of the frame 100, and the positioner 105 can locate the position of the frame 100, thereby cooperating with the camera 104 to locate the crack position.

[0023] See also Figure 4 , Figure 5 as well as Figure 6 , also includes a brush roller 200, which is arranged below the frame 100 and is used to clean the road. An air knife nozzle 206 that can exhaust air to the road is arranged at the bottom of the frame 100, and an air collecting pipe 205 connected to the air knife nozzle 206 is arranged on one side of the air knife nozzle 206. The interior of the air collecting pipe 205 is provided with a booster component that cooperates with the rotation of the brush roller 200. The efficiency of road cleaning can be improved by arranging the cooperation between the brush roller 200 and the air knife nozzle 206. The brush roller 200 can sweep up dust and debris on the road, and the air knife nozzle 206 can blow away the dust and debris cleaned by the brush roller 200, and the air knife nozzle 206 also cleans the surface of the brush roller 200 at the same time to keep the cleanliness and work efficiency of the brush roller 200.

[0024] The booster assembly includes a gap plate 209 fixedly connected to the air manifold 205, and the air manifold 205 is internally rotatably connected to a driven wheel 207, and the driven wheel 207 is internally fixedly connected to a dislocation plate 208, and the dislocation plate 208 and the gap plate 209 are dislocated to block the air manifold 205, the outer surface of the brush roller 200 is fixedly connected to a driving wheel 202, and the driving wheel 202 is connected to the driven wheel 207 by a belt, and one side of the frame 100 is fixedly connected to a first driving motor 201 that drives the brush roller 200 to rotate, and the top of the frame 100 is fixedly connected to the brush roller 200. An air pump 203 is connected, and the output end of the air pump 203 is fixedly connected to an air supply pipe 204 connected to an air collection pipe 205. The cleaning effect can be made more significant by setting a booster component, wherein the air pump 203 runs continuously and continuously pumps gas into the interior of the air collection pipe 205, and the rotation of the brush roller 200 rotates the transmission driven wheel 207 so that the offset plate 208 is intermittently offset from the gap plate 209, thereby changing the blocking state of the air collection pipe 205, and the airflow can be pressurized, thereby increasing the force of subsequent gas injection, thereby enhancing the cleaning efficiency.

[0025] Specifically, when the operating frame 100 is moved and the stains on the road are not heavy, the first driving motor 201 can be turned on to drive the brush roller 200 to rotate to clean the road surface. At the same time, the air pump 203 can be turned on to pump gas into the air pipe 204 and then flow into the interior of the air collecting pipe 205, and sprayed out from the air knife nozzle 206 to process the dust on the road surface cleaned by the brush roller 200. At the same time, when the brush roller 200 rotates, it will drive the driving wheel 202 to rotate through the belt drive driven wheel 207 to rotate, so that the driven wheel 207 continues to rotate and drives the offset plate 208 to rotate and be offset with the gap plate 209. When the gap plate 209 and the offset plate 208 are offset, they will block the air collecting pipe 205 and accumulate gas. When the offset plate 208 and the gap plate 209 coincide with each other, the air collecting pipe 205 will be opened to allow the accumulated gas to pass through, thereby increasing the force of the gas sprayed from the air knife nozzle 206.

[0026] In summary, by setting the brush roller 200, dust, gravel and other debris on the road can be directly cleaned, providing a clear field of view for the camera 104, ensuring the accuracy of crack detection, and the air knife nozzle 206 can further remove the residues after cleaning by the brush roller 200 by spraying high-pressure gas to ensure the cleanliness of the road surface. This pneumatic cleaning method is more efficient than the traditional method and can quickly clean a large area of ​​road. The design of the booster component makes the gas sprayed by the air knife nozzle 206 have greater force, which can more effectively blow away the dust and debris on the road. The rotation of the brush roller 200 is not only used to clean the road, but also drives the driven wheel 207 to rotate through the belt drive, thereby driving the dislocation plate 208 and the gap plate 209 to be intermittently dislocated. This design makes the gas inside the gas manifold 205 form a pressure difference between being blocked and released, thereby realizing the pressurization of the gas. When the pressurized gas is sprayed through the air knife nozzle 206, it has a greater impact force and can more effectively clean the stains and residues on the road surface. The camera 104 can capture details of the road surface, including tiny cracks and damage. On the cleaned road, the camera 104 has a clearer field of view and can more accurately identify the location and size of the cracks. The locator 105 can record the position information of the frame 100 in real time. Combined with the image data captured by the camera 104, the position of the cracks can be accurately located, providing strong support for subsequent road maintenance. The two drive wheels 101 at the rear of the frame 100 have driving force, and the front drive wheel 101 can change direction, so that the entire device can flexibly move and adjust direction under different road conditions.

[0027] Example 2: Please refer to Figure 7 , Figure 8 as well as Fig. 9In order to improve the cleaning power of road debris, the present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a road crack detection device, further comprising a semi-arc plate 300, which is rotatably connected to the inside of the frame 100, and a second drive motor 301 for driving the semi-arc plate 300 to rotate is fixedly connected to one side of the frame 100, and a water tank 303 for storing water is provided inside the frame 100, and a plurality of through holes for water supply are provided below the water tank 303, and a sealing plate 312 adapted to the through holes is provided below the frame 100, and a drainage component adapted to the semi-arc plate 300 and driving the sealing plate 312 to intermittently move is provided at the bottom of the frame 100, and the water flow in the water tank 303 can be discharged by setting the drainage component, so as to be placed on the surface of the brush roller 200, thereby improving its cleaning efficiency.

[0028] Among them, see Fig.10 , Fig.11 as well as Fig.12 The drainage component includes a bracket 313 fixedly connected to the bottom of the frame 100, and the bottom of the bracket 313 is rotatably connected to a lever 314, and the outer surface of the lever 314 is connected to the bracket 313 by a sleeve torsion spring, one end of the lever 314 is rotatably connected to a handle 311 rotatably connected to the sealing plate 312, the interior of the semi-arc plate 300 is fixedly connected to an eccentric rod 403, and the interior of the frame 100 is rotatably connected to a lever plate 401 that can abut against one end of the lever 314, and the interior of the lever plate 401 is provided with a guide groove 404 for the eccentric rod 403 to slide, by setting the eccentric rod 403, one end of the lever plate 401 can be driven to swing up and down, thereby driving the lever 314 to move intermittently, so that the sealing plate 312 is intermittently dislocated to open the perforation under the water tank 303, and the water flows down, which can effectively reduce the drainage volume and avoid excessive wetting of the road surface by a large amount of water.

[0029] Furthermore, a plurality of protrusions 302 are evenly and fixedly connected to the outer surface of the semi-arc plate 300, a drainage groove 304 is provided inside the frame 100, and a piston spring rod 305 adapted thereto is slidably connected inside the drainage groove 304, and a ball 306 which abuts against the protrusion 302 is rotatably connected to one end of the piston spring rod 305, and one end of the drainage groove 304 is connected to a water pipe 308, and one end of the water pipe 308 extends to the bottom of the frame 100 and is connected to a water nozzle 310. In order to further improve the wetting of the road, the water pipe 308 can be provided to effectively drive the water flow to the water nozzle 310, thereby diverting the water, and the diversion and guidance of the water flow can be effectively achieved by providing the semi-arc plate 300.

[0030] Among them, the drainage groove 304 is connected with the water tank 303 through a one-way pipe 307, and the one-way pipe 307 is used to supply the water in the water tank 303 into the drainage groove 304. The inside of the water supply pipe 308 is fixedly connected with a one-way valve 309, and the one-way valve 309 is used to supply the water in the drainage groove 304 to the water nozzle 310. The one-way pipe 307 can only allow the water in the water tank 303 to enter the drainage groove 304, thereby cooperating with the piston end of the piston spring rod 305 to continuously absorb the water in the water tank 303 and discharge it from the water supply pipe 308.

[0031] It is worth mentioning that when the semi-arc plate 300 rotates and drives the lever plate 401 to move upward, it will not be able to conflict with the lever 314, so that the sealing plate 312 is placed in the perforation at the bottom of the water tank 303 to block the water flow, and the ball 306 will conflict with the protrusion 302 at this time to transport the water flow to the water nozzle 310. Because the frame 100 is in a continuous motion state, the water nozzle 310 first wets the road surface to be cleaned by the brush roller 200. Then, when the brush roller 200 moves to the road wetted by the water nozzle 310, its auxiliary rod 402 begins to move downward and drives the handle 311 to move and push the sealing plate 312 to discharge water to the surface of the brush roller 200, thereby achieving efficient wetting effect and dynamic cleaning.

[0032] Specifically, when the road stains are heavier, the second drive motor 301 can be turned on to drive the semi-arc plate 300 to rotate, so that the eccentric rod 403 inside the semi-arc plate 300 makes a circular motion and drives the lever plate 401 to swing back and forth, and then intermittently pushes the lever 314 to move, so that the lever 314 continuously pushes the handle 311 to move and drives the sealing plate 312 to reciprocate, thereby intermittently opening the channel at the bottom of the water tank 303, so that the water flows into the surface of the brush roller 200 to humidify it. At the same time, when the semi-arc plate 300 rotates, the multiple protrusions 302 will gradually collide with the ball 306, thereby pushing the piston end of the piston spring rod 305 to move back and forth inside the drainage groove 304, and then continuously draws water from the water tank 303 and transports it to the water nozzle 310 through the water pipe 308, so that it falls into the road to be cleaned by the brush roller 200, thereby improving the cleaning efficiency.

[0033] In summary, when the road stains are heavy, the second drive motor 301 drives the semi-arc plate 300 to rotate, and through the cooperation of the eccentric rod 403 and the lever plate 401, the lever 314 and the handle 311 are intermittently pushed, so that the sealing plate 312 reciprocates, thereby intermittently opening the channel at the bottom of the water tank 303, allowing the water flow to accurately fall on the surface of the brush roller 200, and realizing dynamic wetting. This design avoids a large amount of water flow directly impacting the road surface, reduces the waste of water resources, and improves the wetting effect. The rotation of the semi-arc plate 300 also drives the contact between the protrusion 302 and the ball 306, promotes the movement of the piston spring rod 305 in the drainage groove 304, absorbs water from the water tank 303 and transports it to the water nozzle 310 through the water pipe 308, and pre-wet the road to be cleaned by the brush roller 200. This pre-wetting operation improves the cleaning efficiency of the brush roller 200, enabling it to remove stains more effectively. The design of the drainage assembly enables the water flow to be accurately delivered to the surface of the brush roller 200 or the water nozzle 310 as needed, thereby avoiding the waste of water resources. The use of the one-way pipe 307 and the one-way valve 309 ensures the one-way flow of the water flow, from the water tank 303 to the drainage groove 304, and then to the water nozzle 310 or the surface of the brush roller 200, forming an efficient water circulation system. By intermittently opening and closing the channel at the bottom of the water tank 303, and using the movement of the piston end of the piston spring rod 305 in the drainage groove 304 to absorb and transport water, this design achieves precise control and efficient use of the water flow. The wetted road surface is easier to be cleaned by the brush roller 200 because the water can soften stains and impurities, making them easier to be brushed off. The rotation of the brush roller 200 is not only used to clean the road, but also drives the driven wheel 207 to rotate through the belt drive, thereby driving the dislocation plate 208 and the gap plate 209 to be intermittently dislocated, pressurizing the air flow, and improving the cleaning efficiency of the air knife nozzle 206. This design makes the cleaning process more comprehensive and in-depth. Simultaneously, the pre-wetting operation of the water spray nozzle 310 also provides good conditions for subsequent brush roller 200 cleaning, further improving the cleaning quality.

[0034] Example 3: Please refer to Fig.12 , Fig.13 as well as Fig.14 The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a road crack detection device also includes an air supply pipe 400, which is connected to one side of the air collecting pipe 205 and is provided with an air supply blade 405 inside. The air supply blade 405 can effectively block the gas from being discharged through the air supply pipe 400 when it is stationary. The air supply pipe 400 is provided with an air increase component that rotates with the semi-arc plate 300 and operates in coordination. By setting the air increase component, the air supply blade 405 can be driven to rotate so that the gas is transported to the air collecting pipe 205, thereby increasing the inflow of gas and improving the exhaust force of the air knife nozzle 206.

[0035] Among them, the air-increasing component includes a support ring 407 fixedly connected to the air-increasing pipe 400, a rotating rod 406 fixedly connected to the air-increasing blade 405 is arranged inside the support ring 407, a guide groove 409 is opened on the outer surface of the rotating rod 406, and a guide ball 408 slidingly connected to the guide groove 409 is fixedly connected to the inside of the support ring 407. Auxiliary rods 402 are fixedly connected on both sides of the lever plate 401, and a transmission handle 410 rotatably connected to the rotating rod 406 is rotatably connected to one side of the auxiliary rod 402. The air-increasing blade 405 can be driven to rotate by setting the guide groove 409 and cooperating with the guide ball 408. The rotation is a reciprocating motion, and the air-increasing blade 405 can be moved at the same time, thereby improving the section between the air-increasing blade 405 and the gas, thereby improving the efficiency of gas transportation.

[0036] Specifically, when the lever plate 401 swings, it drives the auxiliary rod 402 to swing back and forth, thereby driving the transmission handle 410 to pull back and forth, thereby driving the rotating rod 406 to slide inside the support ring 407, so that the guide groove 409 rotates under the action of the guide bead 408 and then drives the air adding blade 405 to rotate, thereby driving the external gas to enter the interior of the air collecting pipe 205, thereby increasing the volume of the gas ejected from the air knife nozzle 206.

[0037] In summary, the air adding blade 405 can effectively block the gas from being discharged through the air adding pipe 400 when stationary, which ensures the stability of the system when there is no need to increase the gas flow. When the lever plate 401 swings, the auxiliary rod 402 and the transmission handle 410 drive the rotating rod 406 to slide in the support ring 407. The cooperation between the guide groove 409 and the guide bead 408 enables the rotating rod 406 to rotate smoothly, thereby driving the air adding blade 405 to rotate. The rotation of the air adding blade 405 not only increases the amount of gas inhaled, but also improves the section with the gas through its mobility, thereby significantly improving the gas delivery efficiency. This design enables more gas to be quickly and effectively delivered to the gas collection pipe 205. With the rotation of the air adding blade 405 and the improvement of the gas delivery efficiency, more gas is sent into the gas collection pipe 205, thereby enhancing the exhaust force of the air knife nozzle 206. Stronger exhaust force means that the air knife nozzle 206 can more effectively blow away stains and impurities on the road surface, improving the efficiency and quality of cleaning. Especially when dealing with stubborn stains or areas that require deep cleaning, the enhanced air knife nozzle 206 can play a greater role. The addition of the air duct 400 and its air-increasing component does not destroy the structure and working principle of the original system, but works closely with each component to jointly optimize the overall performance of the system. For example, when the brush roller 200 is cleaning the road, the air duct 400 and the air-increasing component work simultaneously to provide sufficient gas flow and force for the air knife nozzle 206 to ensure the efficiency and smoothness of the cleaning process. At the same time, this design also improves the flexibility and adaptability of the system, enabling it to cope with roads of different degrees and types of stains.

[0038] Working principle: When in use, the frame 100 is first placed on the road, and then the driving wheel 101 is operated to drive the frame 100 to move so as to detect cracks on the ground, wherein the camera 104 can record and detect cracks on the road surface; At the same time, when the operating frame 100 is moved and the stains on the road are not heavy, the first driving motor 201 can be turned on to drive the brush roller 200 to rotate to clean the road surface. At the same time, the air pump 203 can be turned on to pump gas into the air pipe 204 and then flow into the inside of the air collecting pipe 205, and sprayed from the air knife nozzle 206 to process the dust on the road surface cleaned by the brush roller 200. At the same time, when the brush roller 200 rotates, it will drive the driving wheel 202 to rotate through the belt drive driven wheel 207 to rotate, so that the driven wheel 207 continues to rotate and drives the dislocation plate 208 to rotate and dislocate with the gap plate 209. When the gap plate 209 and the dislocation plate 208 are dislocated, they will block the air collecting pipe 205 and accumulate gas. When the dislocation plate 208 and the gap plate 209 coincide with each other, the air collecting pipe 205 will be opened to allow the accumulated gas to pass through, thereby increasing the force of the gas sprayed from the air knife nozzle 206. When the road stains are heavy, the second driving motor 301 can be turned on to drive the semi-arc plate 300 to rotate, so that the eccentric rod 403 inside the semi-arc plate 300 makes a circular motion and drives the lever plate 401 to swing back and forth, and then intermittently pushes the lever 314 to move, so that the lever 314 continuously pushes the pull handle 311 to move and drives the sealing plate 312 to reciprocate, thereby intermittently opening the channel at the bottom of the water tank 303, so that the water flow falls on the surface of the brush roller 200 to humidify it. At the same time, when the semi-arc plate 300 rotates, the plurality of protrusions 302 will gradually conflict with the ball 306, thereby pushing the piston end of the piston spring rod 305 to move back and forth inside the drainage groove 304, and then continuously draws water from the water tank 303 and transports it to the water nozzle 310 through the water pipe 308, so that it falls on the road to be cleaned by the brush roller 200, thereby improving the cleaning efficiency; At the same time, when the lever plate 401 swings, it will drive the auxiliary rod 402 to swing back and forth, thereby driving the transmission handle 410 to pull back and forth, thereby driving the rotating rod 406 to slide inside the support ring 407, so that the guide groove 409 rotates under the action of the guide bead 408 and then drives the air adding blade 405 to rotate, thereby driving the external gas to enter the interior of the air collecting pipe 205, thereby increasing the volume of the gas ejected from the air knife nozzle 206.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road crack detection device, comprising a frame (100) and a camera (104) arranged thereon and used for detecting road cracks, characterized in that: Also includes: A brush roller (200) is arranged below the vehicle frame (100) and is used to clean the road; an air knife nozzle (206) capable of discharging air to the road is arranged at the bottom of the vehicle frame (100); an air collecting pipe (205) in communication with the air knife nozzle (206) is arranged on one side of the air knife nozzle (206); a booster assembly that cooperates with the rotation of the brush roller (200) is arranged inside the air collecting pipe (205); A semi-arc plate (300) is rotatably connected to the inside of a vehicle frame (100); a water tank (303) for storing water is provided inside the vehicle frame (100); a plurality of through holes for water to pass through are provided below the water tank (303); a sealing plate (312) adapted to the through holes is provided below the vehicle frame (100); and a drainage component adapted to the semi-arc plate (300) and driving the sealing plate (312) to intermittently move is provided at the bottom of the vehicle frame (100); The air supply pipe (400) is connected to one side of the air collecting pipe (205) and is provided with an air supply blade (405) therein. The air supply pipe (400) is provided with an air increase component that rotates and operates in coordination with the semi-arc plate (300).

2. A road crack detection device according to claim 1, characterized in that: The boosting assembly comprises a gap plate (209) fixedly connected to the inside of the air collecting pipe (205), and the inside of the air collecting pipe (205) is rotatably connected to a driven wheel (207), and the inside of the driven wheel (207) is fixedly connected to a dislocation plate (208), and the dislocation plate (208) and the gap plate (209) are dislocated to block the air collecting pipe (205), the outer surface of the brush roller (200) is fixedly connected to a driving wheel (202), and the driving wheel (202) and the driven wheel (207) are connected by a belt, one side of the frame (100) is fixedly connected to a first driving motor (201) for driving the brush roller (200) to rotate, the top of the frame (100) is fixedly connected to an air pump (203), and the output end of the air pump (203) is fixedly connected to an air supply pipe (204) that is in communication with the air collecting pipe (205).

3. A road crack detection device according to claim 1, characterized in that: The drainage assembly comprises a bracket (313) fixedly connected to the bottom of the frame (100), and the bottom of the bracket (313) is rotatably connected to a lever (314), and the outer surface of the lever (314) is connected to the bracket (313) via a sleeved torsion spring, one end of the lever (314) is rotatably connected to a pull handle (311) rotatably connected to a sealing plate (312), an eccentric rod (403) is fixedly connected inside the semi-arc plate (300), and a lever plate (401) capable of contacting one end of the lever (314) is rotatably connected inside the frame (100), and a guide groove (404) for the eccentric rod (403) to slide is provided inside the lever plate (401).

4. A road crack detection device according to claim 3, characterized in that: The outer surface of the semi-arc plate (300) is evenly and fixedly connected with a plurality of protrusions (302); a drainage groove (304) is provided inside the vehicle frame (100); a piston spring rod (305) adapted thereto is slidably connected inside the drainage groove (304); a ball (306) abutting against the protrusion (302) is rotatably connected to one end of the piston spring rod (305); one end of the drainage groove (304) is connected with a water pipe (308); one end of the water pipe (308) extends to the bottom of the vehicle frame (100) and is connected with a water spray nozzle (310).

5. A road crack detection device according to claim 4, characterized in that: The drainage trough (304) is connected to the water tank (303) via a one-way pipe (307). The one-way pipe (307) is used to supply water in the water tank (303) into the drainage trough (304). A one-way valve (309) is fixedly connected to the interior of the water supply pipe (308). The one-way valve (309) is used to supply water in the drainage trough (304) into the water spray nozzle (310).

6. A road crack detection device according to claim 3, characterized in that: The air-increasing component comprises a support ring (407) fixedly connected to the air-increasing pipe (400); a rotating rod (406) fixedly connected to the air-increasing blade (405) is arranged inside the support ring (407); a guide groove (409) is provided on the outer surface of the rotating rod (406); and a guide bead (408) slidably connected to the guide groove (409) is fixedly connected to the inside of the support ring (407).

7. A road crack detection device according to claim 6, characterized in that: Auxiliary rods (402) are fixedly connected to both sides of the lever plate (401), and one side of the auxiliary rod (402) is rotatably connected to a transmission handle (410) rotatably connected to the rotating rod (406).

8. A road crack detection device according to claim 1, characterized in that: A counterweight frame (102) is fixedly connected to the top of the vehicle frame (100), a mounting frame (103) is commonly connected between the counterweight frame (102) and the vehicle frame (100), and the camera (104) is threadedly connected to the top of the mounting frame (103).

9. A road crack detection device according to claim 1, characterized in that: A second driving motor (301) for driving the semi-arc plate (300) to rotate is fixedly connected to one side of the vehicle frame (100).

10. A road crack detection device according to claim 1, characterized in that: A plurality of driving wheels (101) are evenly mounted on the outer surface of the vehicle frame (100), and a positioner (105) is fixedly connected to the bottom of the vehicle frame (100).

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