Laser detection equipment for detecting thickness of pavement material

Abstract

The invention relates to the technical field of laser detection, in particular to laser detection equipment for pavement material thickness detection, which comprises a detection table, an arc-shaped hole is formed in one side of the top end of the detection table in a penetrating manner, a stop block is fixedly connected to the outer side, corresponding to the arc-shaped hole, of the top end of the detection table, and an arc-shaped road edge stone is arranged above the top end, corresponding to the arc-shaped hole, of the detection table. A positioning adjusting mechanism is arranged at the bottom end of the detection table, and a scraping cleaning mechanism and a detection mechanism are arranged at the top end of the detection table; the positioning adjusting mechanism comprises a first clamping plate and a second clamping plate which are arranged on the two sides of the inner wall of the arc-shaped hole, and the first clamping plate, the second clamping plate and the check block are matched to be used for positioning and adjusting the position of the arc-shaped road edge stone. Under the cooperation of the deflected first clamping plate, the deflected second clamping plate and the fixed stop block, the position of the arc-shaped road edge stone can be quickly adjusted, so that the adjustment time can be shortened, and the adjustment efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser detection, and particularly relates to a laser detection device for detecting the thickness of road surface materials. Background Art

[0002] A curbstone is a building material used for trimming the edges of roads. It belongs to a kind of road surface material and is usually made of concrete or natural stone. It has definite length, height and width. It is mainly used to separate areas such as lanes, sidewalks, and green belts. It not only has functionality but also can enhance the beauty of the road. After the curbstone is made, in order to ensure the qualified thickness of the finished product, it is necessary to detect and process the curbstone. For the convenience of detection, it is usually necessary to use a laser detection device to perform non-contact detection on the curbstone, which can not only avoid contact wear of the detection device but also improve the accuracy of the detection results.

[0003] When the existing laser detection device detects the thickness of a curved curbstone, it is necessary to manually repeatedly adjust the position of the curved curbstone, and make the arc length of the curved curbstone and the arc length of the detection path on the same circumference, and the angle centers in the same position. Since the curved curbstone is relatively heavy, it takes a lot of time to adjust, reducing the adjustment efficiency. In addition, when detecting the curved curbstone, it is necessary to clean the surface to be detected. When cleaning, it is mainly aimed at the flat surface to be detected of the curved curbstone, lacking the cleaning of the surface to be detected that is a special-shaped surface. And when cleaning, only scraping treatment is carried out by a scraper, and the dust on the surface to be detected cannot be cleaned, resulting in inaccurate detection results. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background art, and to propose a laser detection device for detecting the thickness of road surface materials.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a laser detection device for detecting the thickness of road surface materials, including a detection table. One side of the top end of the detection table is provided with an arc-shaped hole. A block is fixedly connected to the outside of the detection table corresponding to the arc-shaped hole at the top end. An arc-shaped curbstone is arranged above the arc-shaped hole at the top end of the detection table. A positioning and adjusting mechanism is arranged at the bottom end of the detection table. A scraping and cleaning mechanism and a detection mechanism are arranged at the top end of the detection table. The positioning and adjusting mechanism includes a first clamping plate and a second clamping plate arranged on both sides of the inner wall of the arc-shaped hole. The cooperation of the first clamping plate, the second clamping plate and the stop block is used to position and adjust the position of the arc-shaped curbstone. Notches are provided at both ends of the first clamping plate and the second clamping plate, and spherical grooves are provided on the inner wall of each notch. Ball bearings are provided on the inner wall of each spherical groove. The ball bearings are used to contact the surface of the arc-shaped hole and the inspection table, so as to reduce the resistance during the adjustment process; The scraping and cleaning mechanism is used to clean the surface to be detected of the arc-shaped curbstone, so as to avoid the influence of impurities on the surface to be detected of the arc-shaped curbstone on the detection result.

[0006] Preferably, the positioning and adjusting mechanism further includes a fixed shaft fixedly connected to the bottom end of the inspection table. Fixed rings are rotatably connected to the upper and lower sides of the outer wall of the fixed shaft. Fixed rods are fixedly connected to the mutually remote sides of the outer walls of the fixed rings. The two fixed rods are respectively fixedly connected to the first clamping plate and the second clamping plate.

[0007] Preferably, first auxiliary bevel gears and second auxiliary bevel gears are respectively fixedly connected to the mutually close ends of the two fixed rings. The outer diameters of the first auxiliary bevel gears and the second auxiliary bevel gears are meshed with a main bevel gear. One end of the main bevel gear is fixedly connected to a second driving shaft. The second driving shaft is fixedly connected to the inspection table. A vertical plate is fixedly connected to one side of the bottom end of the inspection table corresponding to the reinforcing plate. A third motor is fixedly connected to the end of the vertical plate close to the reinforcing plate. The driving end of the third motor is fixedly connected to the second driving shaft.

[0008] Preferably, an arc-shaped groove is provided on the inner side of the bottom end of the inspection table corresponding to the arc-shaped hole. Connecting rods are slidably connected to both sides of the inner wall of the arc-shaped groove. The two connecting rods are respectively fixedly connected to the two fixed rods.

[0009] Preferably, the scraping and cleaning mechanism includes a special-shaped scraper adapted to the shape of the surface to be measured of the arc-shaped curbstone. A plurality of water spray nozzles are provided on the side end of the special-shaped scraper. The plurality of water spray nozzles are connected through a shunt groove. A rotating frame is fixedly connected to one end of the inner side of the special-shaped scraper. A water pump is fixedly connected to the top end of the rotating frame. The water pump and the shunt groove are connected through a pipeline.

[0010] Preferably, the scraping and cleaning mechanism further includes a drying groove provided at the bottom end of the special-shaped scraper. A hot air blower is fixedly connected to the top end of the special-shaped scraper. The hot air blower and the drying groove are connected through a pipeline.

[0011] Preferably, the scraping and cleaning mechanism further includes a first motor fixedly connected to the middle of the top end of the inspection table. A first driving shaft is fixedly connected to the driving end of the first motor. The first driving shaft is fixedly connected to the rotating frame. A support rod is fixedly connected to one side of the bottom end of the rotating frame close to the special-shaped scraper. The support rod is slidably connected to the inspection table.

[0012] Preferably, the detection mechanism includes a fixing plate fixedly connected to the top of the outer wall of the first driving shaft. A connecting plate is fixedly connected to the side end of the fixing plate, and the connecting plate is fixedly connected to the special-shaped scraping plate.

[0013] Preferably, a sliding groove is opened at the bottom end of the fixing plate. A second motor is fixedly connected to one side of the inner wall of the sliding groove. The driving end of the second motor is fixedly connected to a threaded rod, and the threaded rod is rotationally connected to the sliding groove.

[0014] Preferably, a moving block adapted to the shape of the sliding groove is threadedly connected to the outer wall of the threaded rod, and a laser rangefinder is fixedly connected to the bottom end of the moving block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the provided positioning and adjusting mechanism, with the cooperation of the deflected first clamping plate, second clamping plate and fixed stop block, the position of the arc-shaped curbstone can be quickly adjusted, and the arc length of the arc-shaped curbstone and the arc length of the detection path are on the same circumference, and the angle centers are at the same position. Therefore, the time used for adjustment can be reduced, and the adjustment efficiency can be improved; 2. Through the provided scraping and cleaning mechanism, the special-shaped scraping plate can contact the special-shaped surface to be detected, and the special-shaped surface to be detected of the arc-shaped curbstone can be washed by water, so that the dust on the surface to be detected can be washed down. Then, it is dried by a hot air blower to ensure the cleanliness of the surface to be detected, ensure the accuracy of the detection result, and improve the detection accuracy; 3. Through the provided detection mechanism, the position of the laser rangefinder can be adjusted, so that multiple arc diameters of the arc-shaped curbstone can be detected, and then a full-range detection can be carried out, improving the accuracy of the detection data and avoiding contingency. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a laser detection device for detecting the thickness of a pavement material according to the present invention; Figure 2 It is a laser detection device for detecting the thickness of a pavement material according to the present invention Figure 1 The enlarged view at A in; Figure 3 It is a top view of another perspective of a laser detection device for detecting the thickness of a pavement material according to the present invention; Figure 4 It is a bottom view of the detection table of a laser detection device for detecting the thickness of a pavement material according to the present invention; Figure 5 It is a bottom view of another perspective of the detection table of a laser detection device for detecting the thickness of a pavement material according to the present invention; Figure 6For the laser detection device for detecting the thickness of a pavement material of the present invention Figure 5 Enlarged view of part B in Figure 7 Bottom view of the fixing plate of the laser detection device for detecting the thickness of a pavement material of the present invention Figure 8 Diagram showing the flow dividing groove of the laser detection device for detecting the thickness of a pavement material of the present invention Figure 9 Partial mechanism split view of the laser detection device for detecting the thickness of a pavement material of the present invention

[0017] In the figure: 1, detection table; 2, arc-shaped curb; 3, first driving shaft; 4, connecting plate; 5, fixing plate; 6, moving block; 7, laser rangefinder; 8, fixing rod; 9, fixing ring; 10, first auxiliary bevel gear; 11, stop block; 12, rotating frame; 13, water pump; 14, second motor; 15, special-shaped scraper; 16, hot air blower; 17, water spray port; 18, first clamping plate; 19, first motor; 20, second clamping plate; 21, arc-shaped hole; 22, second auxiliary bevel gear; 23, main bevel gear; 24, reinforcement plate; 25, connecting rod; 26, fixed shaft; 27, second driving shaft; 28, vertical plate; 29, third motor; 30, drying tank; 31, sliding groove; 32, threaded rod; 33, flow dividing groove; 34, spherical groove; 35, ball; 36, support rod. Detailed implementation manners

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0019] As shown in Figures 1-9 A laser detection device for detecting the thickness of a pavement material, including a detection table 1. One side of the top end of the detection table 1 is provided with an arc-shaped hole 21. The outside of the detection table 1 corresponding to the arc-shaped hole 21 at the top end is fixedly connected with a stop block 11. An arc-shaped curb 2 is arranged above the detection table 1 corresponding to the arc-shaped hole 21. A positioning and adjusting mechanism is arranged at the bottom end of the detection table 1. A scraping and cleaning mechanism and a detection mechanism are arranged at the top end of the detection table 1; As shown in Figure 1 、 Figure 3 、 Figure 9As shown, the positioning and adjusting mechanism includes a first clamping plate 18 and a second clamping plate 20 arranged on both sides of the inner wall of the arc-shaped hole 21. The first clamping plate 18, the second clamping plate 20 and the stop block 11 are used to position and adjust the position of the arc-shaped curbstone 2. Notches are provided at both ends of the first clamping plate 18 and the second clamping plate 20, and spherical grooves 34 are provided on the inner wall of each notch. A ball 35 is provided on the inner wall of each spherical groove 34. The ball 35 is used to contact the arc-shaped hole 21 and the surface of the detection table 1, so as to reduce the resistance during the adjustment process; the scraping and cleaning mechanism is used to clean the surface to be detected of the arc-shaped curbstone 2 to avoid the impurities on the surface to be detected of the arc-shaped curbstone 2 affecting the detection result.

[0020] As Figure 4 , Figure 5 shown, the positioning and adjusting mechanism further includes a fixed shaft 26 fixedly connected to the bottom end of the detection table 1. Fixed rings 9 are rotatably connected to the upper and lower sides of the outer wall of the fixed shaft 26. Fixed rods 8 are fixedly connected to the mutually remote sides of the outer walls of the fixed rings 9. The two fixed rods 8 are fixedly connected to the first clamping plate 18 and the second clamping plate 20 respectively. An arc-shaped groove is provided on the inner side of the detection table 1 corresponding to the arc-shaped hole 21. Connecting rods 25 are slidably connected to both sides of the inner wall of the arc-shaped groove. The two connecting rods 25 are fixedly connected to the two fixed rods 8 respectively. The fixed shaft 26 limits the fixed ring 9. When the fixed ring 9 rotates, the fixed rods 8 on both sides rotate around the center of the fixed shaft 26, so that the first clamping plate 18 and the second clamping plate 20 can rotate around the center of the fixed shaft 26, and thus the position of the arc-shaped curbstone 2 can be adjusted.

[0021] As Figures 4-6 shown, a first sub-bevel gear 10 and a second sub-bevel gear 22 are fixedly connected to the mutually close ends of the two fixed rings 9 respectively. The first sub-bevel gear 10 and the second sub-bevel gear 22 are externally meshed with a main bevel gear 23. One end of the main bevel gear 23 is fixedly connected to a second drive shaft 27. The second drive shaft 27 is fixedly connected to the detection table 1. A vertical plate 28 is fixedly connected to one side of the detection table 1 corresponding to the reinforcing plate 24. A third motor 29 is fixedly connected to the end of the vertical plate 28 close to the reinforcing plate 24. The driving end of the third motor 29 is fixedly connected to the second drive shaft 27. The vertical plate 28 fixes and limits the third motor 29, and the reinforcing plate 24 limits and supports the second drive shaft 27. When the third motor 29 is started, it drives the second drive shaft 27 and the main bevel gear 23 to rotate, and the main bevel gear 23 drives the first sub-bevel gear 10 and the second sub-bevel gear 22 to rotate. Since the first sub-bevel gear 10 and the second sub-bevel gear 22 are symmetrically arranged, when the first sub-bevel gear 10 and the second sub-bevel gear 22 rotate, their rotation directions are opposite, so as to complete the adjustment of the arc-shaped curbstone 2.

[0022] As Figure 2 , Figure 8As shown, the scraping and cleaning mechanism includes a special-shaped scraper 15 adapted to the shape of the surface to be tested of the curved curbstone 2, and a plurality of water spray ports 17 are provided at the side end of the special-shaped scraper 15, and the plurality of water spray ports 17 are connected through a diverter trough 33. A rotating frame 12 is fixedly connected to one end of the inner side of the special-shaped scraper 15, and a water pump 13 is fixedly connected to the top of the rotating frame 12, and the water pump 13 and the diverter trough 33 are connected through a pipe. Since the external water pipe is connected to the water pump 13, when cleaning, the water pump 13 is started to pump water into the diverter trough 33, and since the water spray port 17 and the diverter trough 33 are connected, water is sprayed out through the water spray port 17, so that the surface to be tested of the curved curbstone 2 can be flushed and cleaned, and the dust on the surface to be tested of the curved curbstone 2 can be cleaned off, and at the same time, the hard soil impurities can be softened, which is convenient for the scraping of the special-shaped scraper 15.

[0023] like Figure 2 , Figure 7 , Figure 8 As shown, the scraping and cleaning mechanism also includes a drying tank 30 opened at the bottom of the special-shaped scraper 15, and a hot air blower 16 is fixedly connected to the top of the special-shaped scraper 15. The hot air blower 16 and the drying tank 30 are connected through a pipeline. After flushing and cleaning, the hot air blower 16 is started and the water is transported into the drying tank 30 through the pipeline. Since the opening of the drying tank 30 is downward and in contact with the surface to be tested, the surface to be tested can be dried to prevent moisture from affecting the test results, improve the accuracy and precision of the test results, and only need to be cleaned once, and subsequent multiple tests can be directly carried out.

[0024] like Figure 3 As shown, the scraping and cleaning mechanism also includes a first motor 19 fixedly connected to the middle of the top of the detection platform 1, the driving end of the first motor 19 is fixedly connected to the first drive shaft 3, the first drive shaft 3 is fixedly connected to the rotating frame 12, and the bottom end of the rotating frame 12 is fixedly connected to a support rod 36 near the side of the special-shaped scraper 15, and the support rod 36 is slidably connected to the detection platform 1. The rotating frame 12 is limitedly supported by the support rod 36, and when the first motor 19 is started, the first drive shaft 3 is rotated, and the first drive shaft 3 rotates the rotating frame 12.

[0025] like Figure 1 , Figure 7As shown in the figure, the detection mechanism includes a fixing plate 5 fixedly connected to the top outer wall of the first driving shaft 3. A connecting plate 4 is fixedly connected to the side end of the fixing plate 5. The connecting plate 4 is fixedly connected to the special-shaped scraping plate 15. A chute 31 is opened at the bottom end of the fixing plate 5. A second motor 14 is fixedly connected to one side of the inner wall of the chute 31. The driving end of the second motor 14 is fixedly connected to a threaded rod 32. The threaded rod 32 is rotatably connected to the chute 31. A moving block 6 adapted to the shape of the chute 31 is threadedly connected to the outer wall of the threaded rod 32. A laser rangefinder 7 is fixedly connected to the bottom end of the moving block 6. Since the connecting plate 4 is fixed between the fixing plate 5 and the special-shaped scraping plate 15 by welding, the fixing plate 5 can be strengthened to prevent shaking during work. When the second motor 14 is started, the threaded rod 32 is driven to rotate. Through the threading effect of the threaded rod 32, the moving block 6 moves, thereby driving the laser rangefinder 7 to move and changing the position of the laser rangefinder 7, and then multiple groups of data can be detected to improve the accuracy of the detected data.

[0026] Working principle: First, place the arc-shaped curbstone 2 on the top of the detection table 1 before detection, and make a certain position on the side of the arc-shaped curbstone 2 contact the stopper 11. At this time, start the third motor 29 and drive the second driving shaft 27 and the main bevel gear 23 to rotate. The main bevel gear 23 drives the first sub-bevel gear 10 and the second sub-bevel gear 22 to rotate. Since the first sub-bevel gear 10 and the second sub-bevel gear 22 are symmetrically arranged, when the first sub-bevel gear 10 and the second sub-bevel gear 22 rotate, their rotation directions are opposite. Therefore, the upper and lower fixing rings 9 can be rotated in opposite directions. The upper and lower fixing rings 9 can make the two fixing rods 8 on both sides rotate around the center line of the fixed shaft 26. Since the two fixing rods 8 are respectively fixedly connected to the second clamping plate 20 and the first clamping plate 18, the second clamping plate 20 and the first clamping plate 18 can move towards each other. And with the cooperation of the stopper 11, the position of the arc-shaped curbstone 2 can be quickly adjusted. Therefore, the arc length of the arc-shaped curbstone 2 can be within the circumference of the detection path, thereby reducing the time used for adjustment and improving the adjustment efficiency. It is also convenient for the special-shaped scraping plate 15 to be in close contact with the surface to be detected of the arc-shaped curbstone 2 and slide smoothly. During the adjustment process, through the cooperation of the spherical groove 34 and the ball 35, the resistance of the first clamping plate 18 and the second clamping plate 20 during movement can be reduced, making the movement smoother. After the position adjustment is completed, start the first motor 19 to drive the first drive shaft 3 to rotate. The first drive shaft 3 drives the rotating frame 12 and the special-shaped scraping plate 15 to rotate. When the rotating frame 12 is rotating, it is supported by the support rod 36 to ensure the stable operation of the rotating frame 12. When the special-shaped scraping plate 15 rotates to contact the surface to be detected of the arc-shaped curb 2, start the water pump 13 and supply water through the external connecting pipe. At the same time, draw water into the diversion tank 33 through the pipe. Since the diversion tank 33 is connected to the water spray nozzle 17, water sprays out from the water spray nozzle 17 at this time, so that the surface to be detected of the arc-shaped curb 2 can be flushed and cleaned. After the flushing and cleaning, start the hot air blower 16 and convey hot air into the drying tank 30 through the pipe. Since the drying tank 30 opens downward, the surface to be detected of the special-shaped scraping plate 15 can be dried to avoid residual moisture, ensure the accuracy of the detection result, and improve the detection accuracy; Meanwhile, the first drive shaft 3 drives the fixed plate 5 to rotate. Since the moving block 6 and the laser rangefinder 7 are arranged on the fixed plate 5, the fixed plate 5 can drive the moving block 6 and the laser rangefinder 7 to rotate. When the laser on the laser rangefinder 7 contacts the surface to be detected of the arc-shaped curb 2, record the detected data through the control panel. By observing the change of the data, it can be obtained whether the thickness of the arc-shaped curb 2 is consistent. After one detection is completed, start the second motor 14 to drive the threaded rod 32 to rotate. Through the threading effect of the threaded rod 32, the moving block 6 can be moved, so that the positions of the moving block 6 and the laser rangefinder 7 can be changed, and the next set of data can be detected and recorded, and multiple sets of data can be analyzed and processed, so as to obtain whether the product is qualified, thereby improving the accuracy of the data and avoiding contingency.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser detection device for detecting the thickness of road surface materials, comprising a detection table (1), characterized in that: One side of the top of the detection table (1) is provided with an arc-shaped hole (21). A stopper (11) is fixedly connected to the outside of the detection table (1) corresponding to the arc-shaped hole (21) at the top. An arc-shaped curbstone (2) is arranged above the detection table (1) corresponding to the arc-shaped hole (21). A positioning and adjusting mechanism is arranged at the bottom end of the detection table (1), and a scraping and cleaning mechanism and a detection mechanism are arranged at the top end of the detection table (1). The positioning and adjusting mechanism includes a first clamping plate (18) and a second clamping plate (20) arranged on both sides of the inner wall of the arc-shaped hole (21). The cooperation of the first clamping plate (18), the second clamping plate (20) and the stopper (11) is used to position and adjust the position of the arc-shaped curbstone (2). Notches are opened at both ends of the first clamping plate (18) and the second clamping plate (20). A spherical groove (34) is opened on the inner wall of each notch. A ball (35) is arranged on the inner wall of each spherical groove (34). The ball (35) is used to contact the surfaces of the arc-shaped hole (21) and the detection table (1), so as to reduce the resistance during the adjustment process. The scraping and cleaning mechanism is used to clean the surface to be detected of the arc-shaped curbstone (2) to prevent impurities on the surface to be detected of the arc-shaped curbstone (2) from affecting the detection result.

2. The laser detection device for detecting the thickness of a pavement material according to claim 1, characterized in that: The positioning and adjusting mechanism further includes a fixed shaft (26) fixedly connected to the bottom end of the detection table (1). Fixed rings (9) are rotatably connected to the upper and lower sides of the outer wall of the fixed shaft (26). Fixed rods (8) are fixedly connected to the outer sides of the fixed rings (9) away from each other. The two fixed rods (8) are respectively fixedly connected to the first clamping plate (18) and the second clamping plate (20).

3. The laser detection device for detecting the thickness of a pavement material according to claim 2, characterized in that: First auxiliary bevel gears (10) and second auxiliary bevel gears (22) are respectively fixedly connected to the ends of the two fixed rings (9) close to each other. The first auxiliary bevel gear (10) and the second auxiliary bevel gear (22) are externally meshed with a main bevel gear (23). One end of the main bevel gear (23) is fixedly connected to a second driving shaft (27). The second driving shaft (27) is fixedly connected to the detection table (1). A vertical plate (28) is fixedly connected to one side of the detection table (1) corresponding to the reinforcing plate (24) at the bottom end. A third motor (29) is fixedly connected to the end of the vertical plate (28) close to the reinforcing plate (24). The driving end of the third motor (29) is fixedly connected to the second driving shaft (27).

4. The laser detection device for detecting the thickness of a pavement material according to claim 3, characterized in that: An arc-shaped groove is opened on the inner side of the detection table (1) corresponding to the arc-shaped hole (21) at the bottom end. Connecting rods (25) are slidably connected to both sides of the inner wall of the arc-shaped groove. The two connecting rods (25) are respectively fixedly connected to the two fixed rods (8).

5. The laser detection device for detecting the thickness of a pavement material according to claim 1, characterized in that: The scraping and cleaning mechanism comprises a special-shaped scraper (15) adapted to the shape of the surface to be tested of the curved curbstone (2), a plurality of water spray outlets (17) being provided at the side end of the special-shaped scraper (15), the plurality of water spray outlets (17) being connected via a diversion trough (33), a rotating frame (12) being fixedly connected to one end of the inner side of the special-shaped scraper (15), a water pump (13) being fixedly connected to the top end of the rotating frame (12), and the water pump (13) and the diversion trough (33) being connected via a pipeline.

6. The laser detection device for detecting the thickness of a pavement material according to claim 5, characterized in that: The scraping and cleaning mechanism further comprises a drying groove (30) provided at the bottom end of the special-shaped scraper (15), a hot air blower (16) is fixedly connected to the top end of the special-shaped scraper (15), and the hot air blower (16) and the drying groove (30) are connected via a pipeline.

7. The laser detection device for detecting the thickness of a pavement material according to claim 6, characterized in that: The scraping and cleaning mechanism further comprises a first motor (19) fixedly connected to the middle of the top end of the detection platform (1); a first drive shaft (3) is fixedly connected to a driving end of the first motor (19); the first drive shaft (3) is fixedly connected to a rotating frame (12); a support rod (36) is fixedly connected to a side of the bottom end of the rotating frame (12) close to the special-shaped scraper (15); and the support rod (36) is slidably connected to the detection platform (1).

8. A laser detection device for detecting the thickness of a pavement material according to claim 7, characterized in that: The detection mechanism comprises a fixing plate (5) fixedly connected to the top of the outer wall of the first drive shaft (3), a connecting plate (4) fixedly connected to the side end of the fixing plate (5), and the connecting plate (4) and the special-shaped scraper (15) are fixedly connected.

9. The laser detection device for detecting the thickness of a pavement material according to claim 8, wherein: A slide groove (31) is provided at the bottom end of the fixed plate (5); a second motor (14) is fixedly connected to one side of the inner wall of the slide groove (31); a threaded rod (32) is fixedly connected to the driving end of the second motor (14); and the threaded rod (32) and the slide groove (31) are rotatably connected.

10. The laser detection device for detecting the thickness of a pavement material according to claim 9, characterized in that: The outer wall of the threaded rod (32) is threadedly connected to a moving block (6) having a shape matching that of the slide groove (31), and the bottom end of the moving block (6) is fixedly connected to a laser rangefinder (7).

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