CN118166621A

CN118166621A - Device and method for detecting road surface flatness

Info

Publication number: CN118166621A
Application number: CN202410395140.7A
Authority: CN
Inventors: 夏清; 梁华宇; 彭亚涛; 张海伟; 王功浩; 李俊伟; 吴军; 张晴晴; 王鼎; 杨鹏飞; 罗鹏冲
Original assignee: Henan Zhongping Jiaoke Research And Design Institute Co ltd
Current assignee: Henan Zhongping Jiaoke Research And Design Institute Co ltd
Priority date: 2024-04-02
Filing date: 2024-04-02
Publication date: 2024-06-11

Abstract

The invention relates to the technical field of road detection equipment, in particular to a road surface flatness detection device and a road surface flatness detection method, the road surface flatness detection device comprises a box body, a driving structure is arranged in the box body, the front end of the box body is provided with a cleaning disc structure connected with the driving structure, the cleaning disc structure comprises an air outlet pipe capable of horizontally swinging in a reciprocating mode, one end of the air outlet pipe is provided with a jet head, the front end of the jet head is also provided with a cleaning disc with an up-down buffer distance, the rear end of the box body is provided with a flatness detection structure matched with the cleaning disc structure, the flatness detection structure comprises a distance block capable of ascending and descending, and a plurality of laser detection probes with adjustable intervals are arranged on the distance block, so that the problems that in the prior art, the distance between the laser detection probes cannot be adjusted according to requirements, namely branches and leaves or stones possibly exist on the road surface flatness can not be adjusted and detection results are inaccurate due to untimely cleaning are effectively solved.

Description

Device and method for detecting road surface flatness

Technical Field

The invention relates to the technical field of road detection equipment, in particular to a device and a method for detecting road surface flatness.

Background

Road surface flatness is one of the important indicators for measuring road quality and usability. Along with the increasing traffic volume and traffic load, the requirements for road surface flatness are also continuously increasing. Road surface flatness detection is an important index for guaranteeing road safety and driving comfort. Therefore, research on an accurate and efficient pavement evenness detection device and detection method thereof has important significance.

Most of the existing pavement evenness detection methods are manual detection and contact type detection instruments. Manual detection is usually intermittent 3m ruler measurement, an operator needs to bend down and move back and forth when performing measurement, and the operator looks at data with low head; in addition, the flatness of the road surface is measured by the wedge-shaped feeler gauge, and the accuracy of the road surface flatness detection data measured by the method is low because the fluctuation of the road surface is not very large, and a large amount of manpower and material resources are consumed when the data are acquired, so that the measuring efficiency is low; especially in highway sections such as expressway, urban expressway and the like with heavy traffic, manual inspection is large in workload and has potential safety hazards. Along with the progress of science and technology, some contact detecting instrument produces, like measuring device in the prior art has overcome manual measurement and has wasted time and energy, but measurement accuracy is poor, problem that measurement efficiency is low, and the device has set up multiple sensor device in, and the structure is complicated and use cost is higher, because the precision electrical apparatus spare part such as involving more sensors is so very easily received the damage in the use, once impaired then brings higher maintenance cost.

Although the concave-convex value of road surface can be mapped by the measuring device in the prior art, the laser detection probes can only measure the length surface of the road surface, the numerical value is single, the distance between the laser detection probes cannot be adjusted according to the needs, namely, the flatness of the width surface cannot be detected according to the road width, and the distance between the laser range finder and the ground can be influenced after untimely cleaning due to the fact that branches and leaves or stones possibly exist on the road surface, so that the detection result is not accurate enough.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the device and the method for detecting the road surface flatness, which effectively solve the problems that the distance between laser detection probes cannot be adjusted according to the needs in the prior art, namely, the flatness of the width surface cannot be detected according to the road width, branches and leaves or stones possibly exist on the road surface, and the detection result is inaccurate after the road surface is not cleaned in time.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The utility model provides a detect road surface roughness device, includes the box, be provided with driving structure in the box, driving structure includes homodromous pivoted first bull stick and second bull stick, the both ends of first bull stick and second bull stick are provided with the wheel respectively, the front end of box is provided with the cleaning disc structure that is connected with driving structure, the cleaning disc structure is including the outlet duct that can horizontal reciprocating wobbling, the one end of outlet duct is provided with the jet head, the front end of jet head still is provided with the cleaning disc that has upper and lower buffer distance, the rear end of box is provided with and cleans the smooth detection structure of disc structure matched with, it includes the distance piece that can reciprocate to level the detection structure, be provided with a plurality of interval adjustable laser detection probes on the distance piece.

The driving structure further comprises a motor connected with the inner wall of the box body, the output end of the motor is fixedly connected with a first driving bevel gear, the first driving bevel gear is meshed with a first driven bevel gear, the first driven bevel gear is fixedly connected with a first rotating rod, a driving sprocket is arranged on the first rotating rod, a driving sprocket belt is connected with a driven sprocket, the driven sprocket is fixedly connected with a second rotating rod, a second driving bevel gear is arranged on the second rotating rod, the second driving bevel gear is meshed with a second driven bevel gear, and the second driven bevel gear is connected with the cleaning disc structure.

The cleaning disc structure further comprises a rotary disc coaxially and fixedly connected with the second driven bevel gear, a bolt is arranged at the non-center of the rotary disc, a rotary block and a fixed block are respectively arranged on the air outlet pipe, a rotary column rotationally connected with the bottom plate of the box body is arranged at the lower end of the rotary block, a grooved bar is fixedly connected with the lower end of the fixed block, the bolt is slidingly connected with the inner wall of the grooved bar, an elastic hose is arranged at the rear end of the air outlet pipe, and an air pump connected with the elastic hose is arranged on the bottom plate of the box body.

The second driven bevel gear is further coaxially and fixedly connected with a driving belt wheel, the driving belt wheel is connected with a driven belt wheel, the driven belt wheel is fixedly connected with a groove column, a plate rod is arranged on the groove column, two ends of the plate rod are respectively and fixedly connected with a sliding cylinder, the inner wall of the sliding cylinder is slidably connected with a sliding rod, the upper end of the sliding rod is respectively and fixedly connected with a U-shaped plate, a spring which is respectively connected with the sliding rod and the sliding cylinder in a sleeved mode is arranged between the U-shaped plate and the plate rod, a connecting column which is in sliding connection with the inner wall of the groove column is arranged on the opposite face on the inner side of the U-shaped plate, and the lower end of the U-shaped plate is fixedly connected with a cleaning disc.

The leveling detection structure further comprises a first screw rod rotationally connected with the outer wall of the box body, a first sliding block is fixedly connected with one end of the distance block, a first screw barrel is fixedly connected with the inner wall of the first sliding block and is in threaded connection with the first screw rod, and one end of the distance block is in sliding connection with the outer wall of the box body.

The laser detection probe comprises a laser detection probe, and is characterized in that brackets are respectively arranged at two ends of the distance block, a second screw rod is rotatably connected to the brackets at one end of the distance block, a second sliding block is arranged at one end of the distance block, a second screw barrel is fixedly connected to the inner wall of the second sliding block and in threaded connection with the second screw rod, a limiting plate is fixedly connected to one end of the second sliding block, a limiting rod in sliding connection with the limiting plate is arranged on the brackets at the other end of the distance block, a mounting column is arranged at the upper end of the laser detection probe, a sliding pin in sliding connection with the inner wall of the limiting plate is arranged at one end of the mounting column, and a pair of limiting blocks in sliding connection with the inner wall of the distance block are respectively arranged at the lower end of the sliding pin.

A detection method for detecting a road surface flatness device comprises the following steps:

1. controlling the working of the leveling detection structure, and adjusting the interval between the laser detection probes and the initial distance between the laser detection probes and the ground according to the detection requirement;

2. the laser detection probe works, the driving structure is controlled to work, the laser detection probe moves along with the box body, meanwhile, the cleaning disc works, the air outlet pipe drives the air jet head to swing left and right to clean branches and leaves and dust on the road surface, and meanwhile, the cleaning disc cleans stones with larger weight on the road surface, so that the detection accuracy of the laser detection probe is ensured;

3. The laser detection probe continuously detects the interval information between the laser detection probe and the road surface, and as the controller and the display screen which are electrically connected with the laser detection probe are respectively arranged on the box body, the laser detection probe transmits the detection information into the controller, after the controller collects and processes data, the interval information is displayed on the display screen in real time to be drawn into a continuous longitudinal section graph, and the flatness of the section of the area can be obtained through the processing and analysis of the data by the controller.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the leveling interval can be changed according to the leveling requirements of different road surfaces by arranging the leveling detection structure and further adjusting the interval between the laser detection probes at the lower ends of the mounting columns by controlling the movement of the mounting columns, and the height of the laser detection probes is adjusted by controlling the distance block at one end of the first sliding block to move up and down, so that the leveling precision is improved.

2. Through setting up cleaning structure, utilize the outlet duct to drive the reciprocal swing of jet head about to branch and leaf and dust on the road surface clear up, and simultaneously, clean the dish and clear away the great stone of weight on the road surface, guarantee the accuracy that laser detection probe detected.

Drawings

FIG. 1 is an isometric view I of the present invention;

FIG. 2 is an isometric view II of the present invention;

FIG. 3 is a schematic view of a cleaning structure according to the present invention;

FIG. 4 is a schematic diagram of a driving structure according to the present invention;

FIG. 5 is a schematic view of the U-shaped plate of the present invention;

FIG. 6 is a schematic diagram of a grooved post of the present invention;

FIG. 7 is a schematic view of a turntable according to the present invention;

FIG. 8 is a schematic view of the structure of the first screw of the present invention;

FIG. 9 is a schematic diagram of a flatness detecting structure according to the present invention;

FIG. 10 is a schematic view of a mounting post of the present invention;

in the figure: 1. the device comprises a box body, 2, a first rotating handle, 3, a first screw rod, 4, a limiting plate, 5, a limiting rod, 6, a bracket, 7, a first sliding block, 8, a first screw cylinder, 9, a wheel, 10, a jet head, 11, a sliding pin, 12, a cleaning disc, 13, a U-shaped plate, 14, a motor, 15, an air pump, 16, an elastic hose, 17, an air outlet pipe, 18, a turntable, 19, a rotating block, 20, a fixed block, 21, a grooved bar, 22, a first driving bevel gear, 23, a driving sprocket, 24, a first driven bevel gear, 25, a first rotating rod, 26, a second rotating rod, 27, a driven sprocket, 28, a second driven bevel gear, 29, a second driving bevel gear, 30, a driving pulley, 31, a driven pulley, 32, a plate bar, 33, a spring, 34, a grooved post, 35, a sliding bar, 36, a sliding cylinder, 37, a bolt, 38, a laser detection probe, 39, a second rotating handle, 40, a second screw rod, 41, a second sliding block, 42, a second screw cylinder, 43, a block, 44, a 45 and a limiting block.

Detailed Description

As shown in fig. 1-10, a road surface flatness detection device comprises a box body 1, a driving structure is arranged in the box body 1, the driving structure comprises a first rotating rod 25 and a second rotating rod 26 which rotate in the same direction, wheels 9 are respectively arranged at two ends of the first rotating rod 25 and the second rotating rod 26, a cleaning structure connected with the driving structure is arranged at the front end of the box body 1, the cleaning structure comprises an air outlet pipe 17 capable of horizontally and reciprocally swinging, a jet head 10 is arranged at one end of the air outlet pipe 17, a cleaning disc 12 with an upper buffer distance and a lower buffer distance is further arranged at the front end of the jet head 10, a flatness detection structure matched with the cleaning structure is arranged at the rear end of the box body 1, the flatness detection structure comprises a distance block 43 capable of rising and falling, and a plurality of laser detection probes 38 with adjustable intervals are arranged on the distance block 43.

When the device is used, the working of the leveling detection structure is controlled, the distance between the laser detection probes 38 and the initial distance between the laser detection probes 38 and the ground are adjusted according to the detection requirement, the laser detection probes 38 are working, the driving structure is controlled to work, the laser detection probes 38 move along with the box body 1, meanwhile, the cleaning disc 12 is working, the air outlet pipe 17 is used for driving the air jet head 10 to swing left and right to clean branches and leaves and dust on the road surface, meanwhile, the cleaning disc 12 is used for cleaning stones with larger weight on the road surface, the detection accuracy of the laser detection probes 38 is ensured, the laser detection probes 38 continuously detect distance information between the road surface, and as the box body 1 is respectively provided with the controller and the display screen which are electrically connected with the laser detection probes 38, the laser detection probes 38 transmit the detection information into the controller, after the controller collects and processes data, the distance information is displayed on the display screen in real time to form a continuous vertical section graph, and the flatness of the area can be obtained through the controller.

The driving structure further comprises a motor 14 connected with the inner wall of the box body 1, the output end of the motor 14 is fixedly connected with a first driving bevel gear 22, the first driving bevel gear 22 is meshed with a first driven bevel gear 24, the first driven bevel gear 24 is fixedly connected with a first rotating rod 25, the first rotating rod 25 is provided with a driving sprocket 23, the driving sprocket 23 is connected with a driven sprocket 27, the driven sprocket 27 is fixedly connected with a second rotating rod 26, the second rotating rod 26 is provided with a second driving bevel gear 29, the second driving bevel gear 29 is meshed with a second driven bevel gear 28, and the second driven bevel gear 28 is connected with the cleaning structure.

As shown in fig. 3 and 4, the motor 14 works, the output end of the motor 14 drives the first driving bevel gear 22 to rotate, the first driving bevel gear 22 drives the first driven bevel gear 24 to rotate, the first driven bevel gear 24 drives the first rotating rod 25 to rotate, the first rotating rod 25 drives the driving sprocket 23 to rotate, the driving sprocket 23 drives the driven sprocket 27 to rotate through a chain belt, the driven sprocket 27 drives the second rotating rod 26 to rotate, the first rotating rod 25 and the second rotating rod 26 respectively drive the wheels 9 at two ends to rotate in the rotating process, the box 1 is further driven to move, the second rotating rod 26 drives the second driving bevel gear 29 to rotate, the second driving bevel gear 29 drives the second driven bevel gear 28 to rotate, and the second driven bevel gear 28 drives the cleaning structure to work.

The cleaning structure further comprises a rotary table 18 which is coaxially and fixedly connected with the second driven bevel gear 28, a bolt 37 is arranged at the non-center position of the rotary table 18, a rotary block 19 and a fixed block 20 are respectively arranged on the air outlet pipe 17, a rotary column which is rotationally connected with the bottom plate of the box body 1 is arranged at the lower end of the rotary block 19, a groove rod 21 is fixedly connected with the lower end of the fixed block 20, the bolt 37 is slidably connected with the inner wall of the groove rod 21, an elastic hose 16 is arranged at the rear end of the air outlet pipe 17, and an air pump 15 connected with the elastic hose 16 is arranged on the bottom plate of the box body 1.

As shown in fig. 3 and 7, the second driven bevel gear 28 drives the turntable 18 to rotate, the second turntable 18 drives the plug pin 37 to rotate circumferentially in the rotating process, the plug pin 37 is connected with the inner wall of the groove rod 21 in a sliding manner in the circumferential rotating process, so that the groove rod 21 and the fixed block 20 are driven to swing reciprocally by taking a rotating column at the lower end of the rotating block 19 as an axis, the fixed block 20 drives the air outlet pipe 17 to swing reciprocally, the air outlet pipe 17 is ensured to swing normally by arranging the elastic hose 16, and the air outlet end of the air pump 15 ejects air from the air outlet pipe 17 through the air jet head 10 to blow away dust and branches and leaves on a road surface.

The second driven bevel gear 28 is also coaxially and fixedly connected with a driving pulley 30, the driving pulley 30 is connected with a driven pulley 31, the driven pulley 31 is fixedly connected with a grooved post 34, a plate rod 32 is arranged on the grooved post 34, two ends of the plate rod 32 are respectively and fixedly connected with a sliding barrel 36, the inner wall of the sliding barrel 36 is slidably connected with a sliding rod 35, the upper end of the sliding rod 35 is respectively and fixedly connected with a U-shaped plate 13, a spring 33 which is respectively sleeved and connected with the sliding rod 35 and the sliding barrel 36 is arranged between the U-shaped plate 13 and the plate rod 32, a connecting post which is slidably connected with the inner wall of the grooved post 34 is arranged on the opposite surface on the inner side of the U-shaped plate 13, and the lower end of the U-shaped plate 13 is fixedly connected with the cleaning disc 12.

As shown in fig. 4-7, the second driven bevel gear 28 drives the driving pulley 30 to rotate, the driving pulley 30 drives the driven pulley 31 to rotate through the driving belt, the driven pulley 31 drives the grooved post 34 to rotate, the grooved post 34 drives the plate rod 32 and the U-shaped plate 13 to rotate, the U-shaped plate 13 drives the cleaning disc 12 to rotate, the cleaning disc 12 is utilized to clean sundries such as stones on the ground, when the cleaning disc 12 is cleaning the ground, in order to ensure the cleaning degree, the cleaning disc 12 is attached to the ground as much as possible, the cleaning disc 12 is possibly caused to collide with the concave-convex surface of the ground under the influence of topography, and the service life of the cleaning disc 12 is influenced, so when the cleaning disc 12 collides with the concave-convex surface of the ground, the sliding rods 35 at two ends of the U-shaped plate 13 can slide along the inner wall of the sliding tube 36, and the springs 33 exert downward force on the U-shaped plate 13, so that the connection post on the inner side of the U-shaped plate 13 plays a limiting role in limiting the U-shaped plate 13.

The leveling detection structure further comprises a first screw rod 3 rotationally connected with the outer wall of the box body 1, one end of the distance block 43 is fixedly connected with a first sliding block 7, the inner wall of the first sliding block 7 is fixedly connected with a first screw cylinder 8 in threaded connection with the first screw rod 3, and one end of the distance block 43 is in sliding connection with the outer wall of the box body 1.

As shown in fig. 1 and 8, the upper end of the first screw 3 is provided with a first rotating handle 2, the first rotating handle 2 drives the first screw 3 to rotate, and the first screw 3 is in threaded fit with the first screw cylinder 8 on the inner wall of the first sliding block 7 in the rotating process, so as to drive the distance block 43 at one end of the first sliding block 7 to move up and down, and the height of the laser detection probe 38 is adjusted.

The two ends of the distance block 43 are respectively provided with a bracket 6, the bracket 6 at one end of the distance block 43 is rotationally connected with a second screw rod 40, one end of the distance block 43 is provided with a second sliding block 41, the inner wall of the second sliding block 41 is fixedly connected with a second screw cylinder 42 in threaded connection with the second screw rod 40, one end of the second sliding block 41 is fixedly connected with a limiting plate 4, the bracket 6 at the other end of the distance block 43 is provided with a limiting rod 5 in sliding connection with the limiting plate 4, the upper end of the laser detection probe 38 is provided with a mounting column 45, one end of the mounting column 45 is provided with a sliding pin 11 in sliding connection with the inner wall of the limiting plate 4, and the lower end of the sliding pin 11 is respectively provided with a pair of limiting blocks 44 fixedly connected with the mounting column 45, and the limiting blocks 44 are respectively in sliding connection with the inner wall of the distance block 43.

As shown in fig. 1 and 8-10, one end of the second screw rod 40 is provided with a second rotating handle 39, the second screw rod 40 is driven to rotate through the second rotating handle 39, the second screw rod 40 is in threaded fit with a second screw cylinder 42 on the inner wall of a second sliding block 41 in the rotating process, the second sliding block 41 is further driven to slide up and down along the axial direction of the second screw rod 40, the second sliding block 41 drives a limiting plate 4 to vertically move up and down under the limit of a lower rod, an inner groove on the limiting plate 4 corresponds to a sliding pin 11 at one end of a mounting post 45 in the limiting plate 4 in the vertical moving process of the limiting plate 4, the limiting block 44 is further used for driving the mounting post 45 to slide along the inner wall of a distance block 43 under the limiting effect of the limiting plate 4, the limiting block 44 is used for limiting the movement of the mounting post 45, the mounting post 45 is guaranteed to horizontally slide along the inner wall of the distance block 43, the distance between laser detection probes 38 at the lower end of the mounting post 45 is further regulated by controlling the movement of the mounting post 45, and the leveling accuracy can be improved according to different road surface leveling requirements.

The working process of the invention is as follows: when the laser probe is used, the first rotating handle 2 drives the first screw rod 3 to rotate, the first screw rod 3 is in threaded fit with the first screw cylinder 8 on the inner wall of the first slide block 7 in the rotating process, the distance block 43 at one end of the first slide block 7 is driven to move up and down, the height of the laser detection probe 38 is adjusted, the second screw rod 40 is driven to rotate through the second rotating handle 39, the second screw rod 40 is in threaded fit with the second screw cylinder 42 on the inner wall of the second slide block 41 in the rotating process, the second slide block 41 is driven to slide up and down along the axial direction of the second screw rod 40, the second slide block 41 drives the limit plate 4 to vertically move up and down under the limit of the lower rod, an inner groove on the limit plate 4 is corresponding to the slide pin 11 at one end of the limit plate 45 in the process of the limit plate 4, the limit block 44 further drives the mount post 45 to slide along the inner wall of the distance block 43 under the limit effect of the limit plate 4, the limit block 44 plays a limit role in limiting the movement of the mount post 45, the mount post 45 is ensured to slide horizontally along the inner wall of the distance block 43, the limit post 45 is controlled to move along the limit post 45, the flatness of the mount post 45 is controlled to change the flatness of the laser probe, and the flatness of the laser probe can be measured, the flatness is required to be measured, and the accuracy is improved, and the accuracy is not required to be measured, and the flatness is improved.

The laser detection probe 38 works, the motor 14 works, the output end of the motor 14 drives the first driving bevel gear 22 to rotate, the first driving bevel gear 22 drives the first driven bevel gear 24 to rotate, the first driven bevel gear 24 drives the first rotating rod 25 to rotate, the first rotating rod 25 drives the driving sprocket 23 to rotate, the driving sprocket 23 drives the driven sprocket 27 to rotate through a chain belt, the driven sprocket 27 drives the second rotating rod 26 to rotate, the first rotating rod 25 and the second rotating rod 26 respectively drive the wheels 9 at two ends to rotate in the rotating process, the box body 1 is driven to move, the second rotating rod 26 drives the second driving bevel gear 29 to rotate, the second driving bevel gear 29 drives the second driven bevel gear 28 to rotate, the second driven bevel gear 28 drives the driving pulley 30 to rotate, the driving pulley 30 drives the driven pulley 31 to rotate through a driving belt, the driven pulley 31 drives the grooved post 34 to rotate, the grooved post 34 drives the plate rod 32 and the U-shaped plate 13 to rotate, the U-shaped plate 13 drives the cleaning disc 12 to rotate, debris such as stones on the ground are cleaned by the cleaning disc 12, meanwhile, the second driven bevel gear 28 drives the rotary table 18 to rotate, the second rotary table 18 drives the bolt 37 to rotate circumferentially in the rotating process, the bolt 37 is in sliding connection with the inner wall of the grooved rod 21 in the circumferential rotating process, further the grooved rod 21 and the fixed block 20 are driven to swing reciprocally by taking the rotary post at the lower end of the rotary block 19 as an axis, the fixed block 20 drives the air outlet pipe 17 to swing reciprocally, the air outlet pipe 17 can swing normally through the arrangement of the elastic hose 16, the air outlet end of the air pump 15 ejects air from the air outlet pipe 17 through the air jet head 10, dust and branches on the road surface are blown away, and accuracy of detection of the laser detection probe 38 is guaranteed.

The laser detection probe 38 continuously detects the interval information between the laser detection probe 38 and the road surface, and as the controller and the display screen which are electrically connected with the laser detection probe 38 are respectively arranged on the box body 1, the laser detection probe 38 sends the detection information into the controller, after the controller collects and processes data, the interval information is displayed on the display screen in real time to be drawn into a continuous longitudinal section graph, and the flatness of the section of the road surface can be obtained through the processing and analysis of the data by the controller.

1. adjusting the interval between the laser detection probes 38 and the initial distance between the laser detection probes 38 and the ground according to the inspection requirement;

2. The laser detection probe 38 works, the laser detection probe 38 moves along with the box body 1, meanwhile, the cleaning disc 12 works, the air outlet pipe 17 drives the air jet head 10 to swing left and right to clean branches and leaves and dust on the road surface, and meanwhile, the cleaning disc 12 cleans stones with larger weight on the road surface, so that the detection accuracy of the laser detection probe 38 is ensured;

3. The GPS positioning system is used for measuring different road surface positions, the device can automatically move, the device keeps uniform vehicle speed to move forward, the laser detection probe 38 continuously detects interval information between the laser detection probe and the road surface, and as the controller and the display screen which are electrically connected with the laser detection probe (38) are respectively arranged on the box body (1), the laser detection probe (38) sends detection information into the controller. After the data is collected and processed by the controller, the interval information is displayed on the display screen in real time to be drawn into a continuous vertical section curve graph, and the flatness of the region can be obtained through the data processing and analysis of the controller.

The invention adopts the laser ranging technology to obtain the high vertical section graph of the road surface. The data measured by the laser is required to be processed and analyzed in the control screen. The specific processing steps are as follows:

first, the device is moved over the road and road test data is collected. Second, the collected data may require some preprocessing, including noise removal, filling in missing values, smoothing the data, etc., to improve data accuracy. Characteristic values reflecting the road surface roughness, such as road surface height, gradient, curvature, etc., are extracted from the preprocessed data. The calculated flatness value can then be used to compare the road flatness of different road segments or at different points in time. Then, the analysis result is presented in the form of a graph or an image so as to intuitively see the unevenness of the road surface.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a detect road surface roughness device, includes box (1), its characterized in that: be provided with drive structure in box (1), drive structure includes homodromous first bull stick (25) and second bull stick (26), the both ends of first bull stick (25) and second bull stick (26) are provided with wheel (9) respectively, the front end of box (1) is provided with the cleaning structure who is connected with drive structure, cleaning structure is including can horizontal reciprocating wobbling outlet duct (17), the one end of outlet duct (17) is provided with the oblique decurrent jet head (10) in export, the front end of jet head (10) still is provided with has upper and lower buffer distance's cleaning disc (12), the rear end of box (1) is provided with and cleans structure matched with and level and smooth detection structure, level and smooth detection structure includes distance piece (43) that can reciprocate, be provided with a plurality of interval adjustable laser detection probes (38) on distance piece (43).

2. The pavement evenness detecting apparatus according to claim 1, wherein: the driving structure further comprises a motor (14) connected with the inner wall of the box body (1), a first driving bevel gear (22) is fixedly connected to the output end of the motor (14), a first driven bevel gear (24) is meshed with the first driving bevel gear (22), the first driven bevel gear (24) is fixedly connected with a first rotating rod (25), a driving sprocket (23) is arranged on the first rotating rod (25), the driving sprocket (23) is connected with a driven sprocket (27), the driven sprocket (27) is fixedly connected with a second rotating rod (26), a second driving bevel gear (29) is arranged on the second rotating rod (26), a second driven bevel gear (28) is meshed with the second driving bevel gear (29), and the second driven bevel gear (28) is connected with the cleaning structure.

3. The pavement evenness detecting apparatus according to claim 2, wherein: the cleaning structure further comprises a rotary table (18) which is coaxially and fixedly connected with the second driven bevel gear (28), a bolt (37) is arranged at the non-center position of the rotary table (18), a rotary block (19) and a fixed block (20) are respectively arranged on the air outlet pipe (17), a rotary column which is rotationally connected with the bottom plate of the box body (1) is arranged at the lower end of the rotary block (19), a grooved rod (21) is fixedly connected with the lower end of the fixed block (20), the bolt (37) is slidingly connected with the inner wall of the grooved rod (21), an elastic hose (16) is arranged at the rear end of the air outlet pipe (17), and an air pump (15) which is connected with the elastic hose (16) is arranged on the bottom plate of the box body (1).

4. A pavement evenness measuring apparatus in accordance with claim 3, wherein: the utility model discloses a cleaning device, including driven pulley (30), grooved post (34) are provided with on grooved post (34), driven pulley (30) still coaxial fixedly connected with driving pulley (30), driven pulley (31) area is connected with driven pulley (31), be provided with board pole (32) on grooved post (34), the both ends of board pole (32) are fixedly connected with slide tube (36) respectively, slide tube (36) inner wall sliding connection has slide bar (35), the upper end of slide bar (35) is fixedly connected with U-shaped plate (13) respectively, be provided with between U-shaped plate (13) and board pole (32) respectively with slide bar (35) and slide tube (36) cover establish spring (33) of being connected, be provided with on the inboard opposite face of U-shaped plate (13) with grooved post (34) inner wall sliding connection's spliced pole, the lower extreme fixedly connected with of U-shaped plate (13) clean dish (12).

5. The pavement evenness detecting apparatus according to claim 1, wherein: the leveling detection structure further comprises a first screw rod (3) rotationally connected with the outer wall of the box body (1), a first sliding block (7) is fixedly connected with one end of the distance block (43), a first screw cylinder (8) is fixedly connected with the inner wall of the first sliding block (7) and is in threaded connection with the first screw rod (3), and one end of the distance block (43) is in sliding connection with the outer wall of the box body (1).

6. The pavement evenness measuring apparatus according to claim 5, wherein: the laser detection probe comprises a laser detection probe body and is characterized in that two ends of a distance block (43) are respectively provided with a support (6), a second screw rod (40) is connected to the support (6) at one end of the distance block (43) in a rotating mode, one end of the distance block (43) is provided with a second sliding block (41), the inner wall of the second sliding block (41) is fixedly connected with a second screw cylinder (42) in threaded connection with the second screw rod (40), one end of the second sliding block (41) is fixedly connected with a limiting plate (4), a limiting rod (5) in sliding connection with the limiting plate (4) is arranged on the support (6) at the other end of the distance block (43), the upper end of the laser detection probe body (38) is provided with a mounting column (45), one end of the mounting column (45) is provided with a sliding pin (11) in sliding connection with the inner wall of the limiting plate (4), and the lower end of the sliding pin (11) is respectively provided with a pair of limiting blocks (44) in sliding connection with the inner wall of the limiting column (45).

7. The method for detecting a road surface flatness device according to claim 1, characterized by comprising the steps of:

controlling the working of the leveling detection structure, and adjusting the interval between the laser detection probes (38) and the initial distance between the laser detection probes (38) and the ground according to the detection requirement;

The laser detection probe (38) works, the driving structure is controlled to work, the laser detection probe (38) moves along with the box body (1), meanwhile, the cleaning disc (12) works, the air outlet pipe (17) drives the air jet head (10) to swing left and right to clean branches, leaves and dust on the road surface, and meanwhile, the cleaning disc (12) cleans stones with larger weight on the road surface, so that the detection accuracy of the laser detection probe (38) is ensured;

The laser detection probe (38) continuously detects the interval information between the laser detection probe and the road surface, the box body (1) is provided with a GPS positioning system for measuring the positions of different road surfaces, the device can automatically move to the position to be measured, and the laser detection probe (38) sends the detection information into the controller due to the fact that the box body (1) is respectively provided with the controller and the display screen which are electrically connected with the laser detection probe (38).