Asphalt pavement detection device

Abstract

The present invention belongs to the technical field of road surface smoothness detection, and more particularly, relates to an asphalt pavement detection device, comprising a mounting frame having an inverted U-shaped structure, a controller fixedly connected to the front sidewall of the mounting frame, a mounting plate connected to the right sidewall of the mounting frame, and a traction frame connected to the right sidewall of the mounting plate. When the detection device of the present invention detects the smoothness of an asphalt pavement with road markings, after a laser rangefinder passes over the road markings, the intensity of light reflected from the road markings can be automatically reduced, thereby avoiding the problem of the light reflected from the road markings suddenly becoming stronger, causing abnormal signal reception by the laser rangefinder and affecting measurement accuracy. It also avoids the problem of the rangefinder misjudging the thickness of the road markings as part of the road surface height, causing false bumps in local smoothness data and interfering with the accurate determination of the road surface's true smoothness.

Description

Technical Field

[0001] The invention belongs to the technical field of road surface smoothness detection, and in particular relates to an asphalt road surface detection device. Background Art

[0002] Smoothness is one of the important indicators of pavement construction quality and service level. Uneven pavement will increase driving resistance and cause additional vibration to the vehicle. This vibration will cause driving bumps, affecting driving speed and safety, driving stability and passenger comfort. Therefore, after long-term use, the smoothness of asphalt pavement needs to be tested. For example, patent publication number CN114894129A proposes a smoothness measuring device for highway asphalt pavement maintenance.

[0003] Existing flatness detection devices mostly use laser ranging technology to improve the accuracy of asphalt pavement flatness detection. However, the various marking lines sprayed on the surface of the asphalt pavement after paving (usually composed of reflective materials such as glass beads and fluorescent paint) have a significantly higher reflectivity than ordinary asphalt pavement. When the laser beam is irradiated by the marking lines, the reflected light intensity is prone to sudden changes, causing the rangefinder to receive abnormal signals, thereby affecting the accuracy of distance calculation. In addition, some marking lines have a certain thickness. If the laser beam is irradiated vertically, the rangefinder will misjudge this thickness as part of the road surface height, causing false protrusions in the local flatness data, interfering with the accurate judgment of the road surface's true flatness.

[0004] Therefore, an asphalt pavement detection device is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an asphalt pavement detection device in response to the above problems.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: an asphalt pavement detection device, comprising a mounting frame, the mounting frame having an inverted U-shaped structure, a controller fixedly connected to the front side wall of the mounting frame, a mounting plate connected to the right side wall of the mounting frame, and a traction frame connected to the right side wall of the mounting plate, and further comprising:

[0007] A first screw linear module is fixedly connected to the upper inner wall of the mounting frame, a movable end of the first screw linear module is fixedly connected to a first movable plate, and a lower side wall of the first movable plate is fixedly connected to a laser rangefinder;

[0008] A sensing component, arranged on a side wall of the mounting plate, for detecting the position of the marking line;

[0009] The positioning adjustment component is arranged on the upper inner wall of the mounting frame and is located on the left side of the first screw linear module, and is used to reduce the reflection of the identification line.

[0010] Preferably, the induction component includes an induction electric push rod fixedly connected to the side wall of the mounting plate, the moving end of the induction electric push rod passes through the mounting plate and is fixedly connected to the induction plate, the lower side wall of the induction plate is fixedly connected to a plurality of longitudinally distributed induction cylinders, the upper inner wall of the induction cylinder is connected to a circular plate through a spring, the lower side wall of the circular plate is fixedly connected to a induction rod, the lower side wall of the induction cylinder is provided with a through hole, the lower end of the induction rod passes through the through hole and is fixedly connected to an induction wheel, and the gap between adjacent induction wheels is 0.5 cm, the upper side wall of the circular plate is fixedly connected to a conductive frame, the conductive frame is electrically connected to the internal power supply of the traction vehicle, the inner wall of the induction cylinder is inlaid with a conductive plate, and the conductive plate is electrically connected to the controller through a current sensor.

[0011] Preferably, the positioning adjustment component includes a second screw linear module fixedly connected to the upper inner wall of the mounting frame, the movable end of the second screw linear module is fixedly connected to the second movable plate, the lower side wall of the second movable plate is fixedly connected to the driving motor, the output end of the driving motor is fixedly connected to the rotating rod, the end of the rotating rod is fixedly connected to the black transparent plate, the upper inner wall of the mounting frame is fixedly connected to the position frame, the position frame is a U-shaped structure, and a plurality of square tubes are fixedly inserted on the left and right sides of the position frame, a square rod is movably inserted in the square tube, and the square rod is located at one end in the position frame. A ramp block is fixedly connected thereto, a same spring is fixedly connected between the ramp block and the square tube, a plurality of small electric push rods are fixedly connected to the lower inner wall of the position frame, the movable end of the small electric push rod is fixedly connected to a triangular block that matches the ramp block, one end of the square rod extending out of the position frame is fixedly connected to a positioning seat through an elastic rod, the positioning seat is electrically connected to the internal power supply of the traction vehicle, the upper side wall of the second movable plate is fixedly connected to the first vertical plate, the right side wall of the first vertical plate is fixedly connected to a plurality of positioning blocks, and the plurality of positioning blocks are electrically connected to the controller through a current sensor.

[0012] Preferably, the upper side wall of the first movable plate is fixedly connected to a second vertical plate, the left side wall of the second vertical plate is fixedly connected to a compensation block, and the compensation block is electrically connected to the controller via a current sensor.

[0013] Preferably, an inertia box is fixedly connected to the front side wall of the mounting frame, and the left and right inner walls of the inertia box are fixedly connected to the same gravity block via a spring. The left and right sides of the gravity block are fixedly connected to trigger blocks, and the trigger blocks are electrically connected to the internal power supply of the traction vehicle. Trigger plates are embedded on the left and right sides of the lower side wall of the inertia box, and the two trigger plates are electrically connected to the controller via a current sensor.

[0014] Preferably, the upper side wall of the mounting frame is fixedly connected to a fixed tube, the bottom end of the fixed tube is fixedly connected to a cleaning cylinder, the cleaning cylinder is obliquely arranged on the right side of the mounting frame, the lower side wall of the cleaning cylinder is fixedly connected to a cleaning plate, the distance between the cleaning plate and the ground is 0.5 cm, and the cleaning plate is made of elastic rubber.

[0015] Preferably, the lower side wall of the cleaning cylinder is fixedly connected to an air blowing cylinder, and the air blowing cylinder is tilted to the right. The upper side wall of the mounting frame is fixedly connected to a high-pressure air pump, and the air outlet end of the high-pressure air pump is connected to a fixed pipe.

[0016] Preferably, the upper side wall of the mounting frame is fixedly connected to a support frame, the support frame is an inverted L-shaped structure, and the side wall of the support frame is fixedly connected to a camera.

[0017] Compared with existing technologies, the advantages of an asphalt pavement detection device are:

[0018] 1. Through the set sensing components and positioning adjustment components, when the detection device detects the flatness of the asphalt road surface with road marking lines, when the laser rangefinder passes over the road marking lines, the intensity of the light reflected by the road marking lines can be automatically weakened, thereby avoiding the problem that the reflected light from the road marking lines suddenly becomes stronger, which will cause the laser rangefinder to receive abnormal signals and affect the measurement accuracy.

[0019] 2. Through the positioning adjustment component, when the detection device moves on the asphalt road surface, the black transparent plate can always be placed directly above the road marking line. When the laser rangefinder passes above the road marking line, the thickness of the road marking line can be automatically ignored, thereby avoiding the problem that the rangefinder will misjudge the road marking thickness as part of the road surface height, causing false bulges in the local flatness data and interfering with the accurate judgment of the actual road surface flatness.

[0020] 3. Through the inertia box, gravity block, trigger block and trigger plate, when the traction vehicle drives the detection device to work, when the traction vehicle starts and stops, the pitching motion generated by the vehicle starting and stopping can be automatically ignored, thereby avoiding the problem of the laser beam inclination angle changing due to the lifting and sinking of the vehicle head caused by the start of the vehicle, which leads to deviation in the measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of an asphalt pavement detection device provided by the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of a sensing tube in an asphalt pavement detection device provided by the present invention;

[0023] Figure 3This is a schematic diagram of the positional relationship between a cleaning cylinder and an air blowing cylinder in an asphalt pavement inspection device provided by the present invention;

[0024] Figure 4 This is a schematic diagram of the positional relationship of the positioning and adjustment components in the asphalt pavement detection device provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of a position frame in an asphalt pavement detection device provided by the present invention;

[0026] Figure 6 It is a bottom view of a position frame and a first vertical plate in an asphalt pavement detection device provided by the present invention;

[0027] Figure 7 It is a schematic diagram of the internal structure of an inertia box in an asphalt pavement detection device provided by the present invention.

[0028] In the figure: 1 mounting frame, 2 controller, 3 mounting plate, 4 traction frame, 5 first screw linear module, 6 first movable plate, 7 laser rangefinder, 8 sensing component, 81 induction electric push rod, 82 sensing plate, 9 sensing tube, 10 circular plate, 11 sensing rod, 12 sensing wheel, 13 conductive frame, 14 conductive plate, 15 positioning adjustment component, 151 second screw linear module, 152 second movable plate, 16 driving motor, 17 rotating rod, 18 black transparent plate, 19 position frame, 20 square tube, 21 square rod, 22 inclined plane block, 23 small electric push rod, 24 triangular block, 25 positioning seat, 26 first vertical plate, 27 positioning block, 28 second vertical plate, 29 compensation block, 30 inertia box, 31 gravity block, 32 trigger block, 33 trigger plate, 34 fixed tube, 35 cleaning tube, 36 cleaning plate, 37 air blower, 38 high pressure air pump, 39 support frame, 40 camera. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] like Figure 1-Figure 7 As shown, an asphalt pavement detection device includes a mounting frame 1, the mounting frame 1 is an inverted U-shaped structure, the front side wall of the mounting frame 1 is fixedly connected to a controller 2, the right side wall of the mounting frame 1 is connected to a mounting plate 3, the right side wall of the mounting plate 3 is connected to a traction frame 4, the upper side wall of the mounting frame 1 is fixedly connected to a support frame 39, the support frame 39 is an inverted L-shaped structure, and the side wall of the support frame 39 is fixedly connected to a camera 40, and further includes:

[0031] The first screw linear module 5 is fixedly connected to the upper inner wall of the mounting frame 1. The movable end of the first screw linear module 5 is fixedly connected to the first movable plate 6. The lower side wall of the first movable plate 6 is fixedly connected to the laser rangefinder 7.

[0032] The sensing component 8 is arranged on the side wall of the mounting plate 3 and is used to detect the position of the marking line. The sensing component 8 includes an induction electric push rod 81 fixedly connected to the upper side wall of the mounting plate 3. The moving end of the induction electric push rod 81 passes through the mounting plate 3 and is fixedly connected to the induction plate 82. The lower side wall of the induction plate 82 is fixedly connected to a plurality of longitudinally distributed induction cylinders 9. The upper inner wall of the induction cylinder 9 is connected to a circular plate 10 through a spring. The lower side wall of the circular plate 10 is fixedly connected to a sensing rod 11. The lower side wall of the induction cylinder 9 is provided with a through hole. The lower end of the sensing rod 11 passes through the through hole and is fixedly connected to an induction wheel 12, and the gap between adjacent induction wheels 12 is 0.5 cm. The upper side wall of the circular plate 10 is fixedly connected to a conductive frame 13, which is electrically connected to the internal power supply of the traction vehicle. The inner wall of the induction cylinder 9 is inlaid with a conductive plate 14, which is electrically connected to the controller 2 through a current sensor, so as to detect the position of the mark on the asphalt road surface;

[0033] The positioning adjustment component 15 is arranged on the upper inner wall of the mounting frame 1 and is located on the left side of the first screw linear module 5 to reduce the reflection of the marking line. The positioning adjustment component 15 includes a second screw linear module 151 fixedly connected to the upper inner wall of the mounting frame 1. The moving end of the second screw linear module 151 is fixedly connected to the second moving plate 152. The lower side wall of the second moving plate 152 is fixedly connected to the driving motor 16. The output end of the driving motor 16 is fixedly connected to the rotating rod 17. The end of the rotating rod 17 is fixedly connected to the black Color transparent plate 18, the upper inner wall of the mounting frame 1 is fixedly connected with a position frame 19, the position frame 19 is a U-shaped structure, the left and right sides of the position frame 19 are fixedly plugged with a plurality of square tubes 20, the square tube 20 is movably plugged with a square rod 21, the square rod 21 is located in the position frame 19. One end of the square rod 21 is fixedly connected with a ramp block 22, and the ramp block 22 and the square tube 20 are fixedly connected with the same spring. The lower inner wall of the position frame 19 is fixedly connected with a plurality of small electric push rods 23, and the moving end of the small electric push rod 23 is fixedly connected with the ramp. The blocks 22 are triangular blocks 24 that match each other, and one end of the square rod 21 extending out of the position frame 19 is fixedly connected to a positioning seat 25 through an elastic rod. The positioning seat 25 is electrically connected to the internal power supply of the traction vehicle. The upper side wall of the second movable plate 152 is fixedly connected to a first vertical plate 26, and the right side wall of the first vertical plate 26 is fixedly connected to a plurality of positioning blocks 27. The plurality of positioning blocks 27 are all electrically connected to the controller 2 through a current sensor. The upper side wall of the first movable plate 6 is fixedly connected to a second vertical plate 28, and the left side wall of the second vertical plate 28 is fixedly connected to a compensation block 29. The compensation block 29 is electrically connected to the controller 2 through a current sensor. When the detection device moves on the asphalt pavement, the black transparent plate 18 can always be directly above the pavement marking, and when the laser rangefinder 7 passes above the pavement marking, it can automatically compensate for the thickness of the pavement marking, thereby avoiding the problem that the laser rangefinder 7 will misjudge the thickness of the pavement marking as part of the pavement height, causing false protrusions in the local flatness data, and interfering with the accurate judgment of the true flatness of the pavement.

[0034] An inertia box 30 is fixedly connected to the front side wall of the mounting frame 1. A gravity block 31 is fixedly connected to the left and right inner walls of the inertia box 30 via springs. Trigger blocks 32 are fixedly connected to the left and right sides of the gravity block 31. The trigger blocks 32 are electrically connected to the internal power supply of the towing vehicle. Trigger plates 33 are embedded on the left and right sides of the lower side wall of the inertia box 30. Both trigger plates 33 are electrically connected to the controller 2 via current sensors. When the towing vehicle drives the detection device to operate, the pitching motion generated by the towing vehicle during startup and shutdown can be automatically ignored, thereby avoiding the problem of the laser beam inclination angle changing due to the lifting and sinking of the vehicle's front end caused by startup, resulting in deviation in the measurement data.

[0035] The upper side wall of the mounting frame 1 is fixedly connected to a fixed pipe 34, and the bottom end of the fixed pipe 34 is fixedly connected to a cleaning cylinder 35, which is obliquely arranged on the right side of the mounting frame 1. The lower side wall of the cleaning cylinder 35 is fixedly connected to a cleaning plate 36, and the distance between the cleaning plate 36 and the ground is 0.5 cm. The cleaning plate 36 is made of elastic rubber, and the lower side wall of the cleaning cylinder 35 is fixedly connected to an air blowing cylinder 37, which is tilted to the right. The upper side wall of the mounting frame 1 is fixedly connected to a high-pressure air pump 38, and the air outlet end of the high-pressure air pump 38 is connected to the fixed pipe 34, which can clean impurities on the road surface.

[0036] The operating principle of the present invention is now described as follows: the detection device is mounted on the traction vehicle through the traction frame 4, and then the internal circuit of the detection device is connected to the circuit in the traction vehicle. The traction vehicle then drives the detection device to move on the asphalt road surface. The traction vehicle travels at a speed of 0.2 m / s. During the movement of the detection device, when the controller 2 detects through the camera 40 that the mounting frame 1 has moved above the road marking line (such as the solid line of the lane dividing line), it will control the induction electric push rod 81 to work. The induction electric push rod 81 will drive the induction plate 82, the induction cylinder 9 and the induction wheel 12 to move downward to the set position, so that the induction wheel 12 contacts the road surface. After the induction wheel 12 contacts the road surface, the induction cylinder 9 will continue to move downward to the set position driven by the upper induction electric push rod 81. Under the action of the reaction force of the ground, the induction wheel 12 will drive the circular plate 10 and the conductive frame 13 to move upward to a certain position through the induction rod 11, so that the conductive frame 13 stays at a position 0.5mm below the conductive plate 14. Since the thickness of the marking line is 1-2.5mm, when the induction wheel 12 passes the marking line on the asphalt road surface, the induction wheel 12 will drive the circular plate 10 and the conductive frame 13 to move upward by 1-2.5mm through the induction rod 11, so that the conductive frame 13 and the conductive plate 14 contact each other. The conductive frame 13 is electrically connected to the internal power supply of the traction vehicle, and the conductive plate 14 is electrically connected to the controller 2 through the current sensor. When the conductive frame 13 and the conductive plate 14 contact each other, an electrical signal will be transmitted to the controller 2, and the controller 2 will control the small electric push rod 23 corresponding to the position of the induction wheel 12 to work;

[0037] The small electric push rod 23 will drive the triangular block 24 to move upward to the set position. During the upward movement of the triangular block 24, it will contact the inclined blocks 22 on both sides. Under the action of the inclined surfaces between the inclined blocks 22 and the triangular block 24, the inclined block 22 will drive the positioning seat 25 to move to the set position in the direction away from the position frame 19 through the square rod 21 and the elastic rod (in the subsequent process of the positioning block 27 or the compensation block 29 contacting the positioning seat 25, the elastic rod will provide a space for the positioning seat 25 to move left and right, and the positioning seat 25, the positioning block 27 and the compensation block 29 are all provided with inclined structures on both sides, which can be used in the positioning After the seat 25 contacts the positioning block 27 or the compensation block 29, a contact force is applied to ensure the stability of the contact). At the same time, the controller 2 will also control the drive motor 16 to work, and the drive motor 16 will drive the rotating rod 17 and the black transparent plate 18 (the transmittance of the black transparent plate 18 is 10%-30%, and the black transparent plate 18 with different transmittance can be installed according to the on-site reflection intensity) to rotate together, so that the black transparent plate 18 stays at the moving path of the laser rangefinder 7. Then, the controller 2 will also control the second screw linear module 151 to work, and the second screw linear module 151 will drive the second movable plate 152 and the black transparent plate 18 to rotate. The black transparent plate 18, the first vertical plate 26 and the plurality of positioning blocks 27 move together along the width direction of the mounting frame 1 (the positioning block 27 is initially located in the mounting frame 1 near the rear). During the movement, the plurality of positioning blocks 27 will contact the positioning seat 25 on the left side (the distance between the positioning blocks 27 at the front and rear ends is the same as the width of the marking line and the black transparent plate 18). The positioning seat 25 is electrically connected to the internal power supply of the traction vehicle, and the positioning block 27 is electrically connected to the controller 2 through the current sensor. When the positioning block 27 contacts the positioning seat 25, an electrical signal is transmitted to the controller 2. When the controller 2 After the controller 2 receives the electrical signals transmitted by all the positioning blocks 27, it will control the second screw linear module 151 to stop working. At this time, the black transparent plate 18 is located directly above the marking line. When the position of the traction vehicle shifts during driving, the position of the induction wheel 12 in contact with the marking line will change. After the induction wheel 12 originally in contact with the marking line moves away, the circular plate 10 will drive the conductive frame 13 and the conductive plate 14 to separate under the action of the spring force, thereby disconnecting the electrical connection between the conductive plate 14 and the controller 2. After the controller 2 detects that the electrical signal transmitted by the conductive plate 14 is disconnected, the controller 2 will delay 0.After 5 seconds, the corresponding small electric push rod 23 is controlled to retract, separating one of the left positioning seats 25 and a positioning block 27. The electrical signal between the positioning block 27 and the controller 2 is interrupted. Upon detecting that the electrical signal transmitted by the positioning block 27 has been disconnected, the controller 2 controls the second linear actuator 151 to move the multiple positioning blocks 27 and the black transparent plate 18 together (toward the positioning block 27 where the electrical signal has not been disconnected) until all the positioning blocks 27 are back in contact with all the raised positioning seats 25, ensuring that the black transparent plate 18 is always above the marking line.

[0038] When the detection device detects the flatness of the asphalt pavement, the controller 2 will control the first screw linear module 5 and the laser rangefinder 7 to work. The first screw linear module 5 will drive the laser rangefinder 7 and the second vertical plate 28 and the compensation block 29 to move through the first movable plate 6. When the compensation block 29 passes the positioning block 27 extending on the right side, it will contact the positioning block 27 on the right side. The compensation block 29 is electrically connected to the controller 2 through the current sensor. When the compensation block 29 contacts the positioning block 27, an electrical signal is transmitted to the controller 2. After receiving the electrical signal, the controller 2 will The optical rangefinder 7 detects abnormal data on the road surface below and ignores it, thus avoiding the problem that the laser rangefinder 7 will misjudge the thickness of the road marking as part of the road surface height, causing false bulges in the local flatness data and interfering with the accurate judgment of the true flatness of the road surface. In addition, the laser beam emitted by the laser rangefinder 7 will pass through the black transparent plate 18 after being reflected by the marking line before being re-received. The black transparent plate 18 will weaken the intensity of the emitted laser beam, thus avoiding the problem that the reflected light from the road marking suddenly becomes stronger, causing the laser rangefinder 7 to receive abnormal signals and affect the measurement accuracy.

[0039] When the traction vehicle suddenly starts or stops, the gravity block 31 inside the inertia box 30, under the action of inertia, will drive the trigger blocks 32 on both sides to move, causing the trigger blocks 32 to contact the trigger plates 33. The trigger blocks 32 are electrically connected to the power supply inside the traction vehicle, and the trigger plates 33 are electrically connected to the controller 2 via the current sensor. When the trigger blocks 32 and the trigger plates 33 make contact, an electrical signal is transmitted to the controller 2. Upon receiving this electrical signal, the controller 2 will ignore the abnormal data detected by the laser rangefinder 7 at this time, thereby avoiding the problem of the laser beam inclination angle changing due to the lifting and sinking of the vehicle's front end caused by starting the vehicle, which may lead to deviations in the measurement data.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An asphalt pavement detection device, comprising a mounting frame (1), the mounting frame (1) being an inverted U-shaped structure, the front side wall of the mounting frame (1) being fixedly connected to a controller (2), the right side wall of the mounting frame (1) being connected to a mounting plate (3), the right side wall of the mounting plate (3) being connected to a traction frame (4), characterized in that: Also includes: A first screw linear module (5) is fixedly connected to the upper inner wall of the mounting frame (1); a movable end of the first screw linear module (5) is fixedly connected to a first movable plate (6); and a lower side wall of the first movable plate (6) is fixedly connected to a laser rangefinder (7); A sensing component (8) is arranged on a side wall of the mounting plate (3) and is used to detect the position of the marking line; A positioning adjustment component (15) is arranged on the upper inner wall of the mounting frame (1) and is located on the left side of the first screw linear module (5), and is used to reduce the reflection of the marking line. The sensing component (8) includes an induction electric push rod (81) fixedly connected to the upper side wall of the mounting plate (3), the moving end of the induction electric push rod (81) passes through the mounting plate (3) and is fixedly connected to the induction plate (82), the lower side wall of the induction plate (82) is fixedly connected to a plurality of longitudinally distributed induction cylinders (9), the upper inner wall of the induction cylinder (9) is connected to a circular plate (10) through a spring, the lower side wall of the circular plate (10) is fixedly connected to a sensing rod (11), the lower side wall of the induction cylinder (9) is provided with a through hole, the lower end of the induction rod (11) passes through the through hole and is fixedly connected to an induction wheel (12), and the gap between adjacent induction wheels (12) is 0.5cm, the upper side wall of the circular plate (10) is fixedly connected to a conductive frame (13), the conductive frame (13) is electrically connected to the internal power supply of the traction vehicle, the inner wall of the induction cylinder (9) is inlaid with a conductive plate (14), the conductive plate (14) is electrically connected to the controller (2) through a current sensor, and the positioning adjustment component (15) includes a second screw linear module (151) fixedly connected to the inner wall of the upper side of the mounting frame (1), and the movable end of the second screw linear module (151) is fixedly connected to the second movable plate (152), The lower side wall of the second movable plate (152) is fixedly connected to a driving motor (16), the output end of the driving motor (16) is fixedly connected to a rotating rod (17), the end of the rotating rod (17) is fixedly connected to a black transparent plate (18), the upper inner wall of the mounting frame (1) is fixedly connected to a position frame (19), the position frame (19) is a U-shaped structure, and the left and right sides of the position frame (19) are fixedly plugged with a plurality of square tubes (20), the square tubes (20) are movably plugged with square rods (21), and the square rods (21) are positioned A bevel block (22) is fixedly connected to one end of the position frame (19), and a same spring is fixedly connected between the bevel block (22) and the square tube (20). A plurality of small electric push rods (23) are fixedly connected to the inner wall of the lower side of the position frame (19), and the movable end of the small electric push rod (23) is fixedly connected to a triangular block (24) that matches the bevel block (22). One end of the square rod (21) extending out of the position frame (19) is fixedly connected to a positioning seat (25) through an elastic rod. The positioning seat (25) and the interior of the traction vehicle are fixedly connected. The power supply is electrically connected, the upper side wall of the second movable plate (152) is fixedly connected to the first vertical plate (26), the right side wall of the first vertical plate (26) is fixedly connected to a plurality of positioning blocks (27), and the plurality of positioning blocks (27) are all electrically connected to the controller (2) through the current sensor, the upper side wall of the first movable plate (6) is fixedly connected to the second vertical plate (28), and the left side wall of the second vertical plate (28) is fixedly connected to a compensation block (29), and the compensation block (29) is electrically connected to the controller (2) through the current sensor.

2. The asphalt pavement detection device according to claim 1, characterized in that: The front side wall of the mounting frame (1) is fixedly connected to an inertia box (30), and the left and right inner walls of the inertia box (30) are fixedly connected to the same gravity block (31) via a spring. The left and right sides of the gravity block (31) are fixedly connected to trigger blocks (32), and the trigger blocks (32) are electrically connected to an internal power supply of the traction vehicle. The left and right sides of the lower side wall of the inertia box (30) are inlaid with trigger plates (33), and the two trigger plates (33) are electrically connected to the controller (2) via a current sensor.

3. The asphalt pavement detection device according to claim 1, characterized in that: The upper side wall of the mounting frame (1) is fixedly connected to a fixing pipe (34), the bottom end of the fixing pipe (34) is fixedly connected to a cleaning cylinder (35), the cleaning cylinder (35) is tiltedly arranged on the right side of the mounting frame (1), and the lower side wall of the cleaning cylinder (35) is fixedly connected to a cleaning plate (36), the distance between the cleaning plate (36) and the ground is 0.5 cm, and the cleaning plate (36) is made of elastic rubber.

4. The asphalt pavement detection device according to claim 3, characterized in that: The lower side wall of the cleaning cylinder (35) is fixedly connected to a blow cylinder (37), and the blow cylinder (37) is tilted and arranged to face right. The upper side wall of the mounting frame (1) is fixedly connected to a high-pressure air pump (38), and the air outlet end of the high-pressure air pump (38) is connected to the fixed pipe (34).

5. The asphalt pavement detection device according to claim 1, characterized in that: The upper side wall of the mounting frame (1) is fixedly connected to a support frame (39), the support frame (39) is an inverted L-shaped structure, and the side wall of the support frame (39) is fixedly connected to a camera (40).

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