Nondestructive testing device for asphalt pavement

Abstract

The nondestructive testing device comprises a plurality of laser sensors and a first mounting plate, the plurality of laser sensors are fixedly connected to the middle of the upper end of the first mounting plate at equal intervals, and the upper end of the first mounting plate is fixedly connected with a high-pressure air pump; the output end of the high-pressure air pump is fixedly connected with a hose, the upper end of the first mounting plate is fixedly connected with two connecting mechanisms of L-shaped structures, the end, away from the high-pressure air pump, of the first mounting plate is fixedly connected with a blowing mechanism, and the middle of the upper end of the first mounting plate is fixedly connected with a mounting frame; and the upper end of the mounting frame is fixedly connected with an electric push rod. External air is sucked in through the high-pressure air pump, compressed and then conveyed to the purging mechanism through the hose, so that high-pressure airflow is blown to the asphalt pavement through the air nozzle of the purging mechanism, falling aggregate particles and sewage in small pits in the asphalt pavement are blown out, and the detection effect of the detection device on the asphalt pavement is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface detection equipment, in particular to a nondestructive detection device for asphalt road surfaces. Background Art

[0002] Asphalt pavement is subject to traffic loads and various external conditions during its service life, which causes changes in pavement properties. By testing and monitoring the performance and status of the pavement under traffic loads and external climate, and processing the collected data, analyzing the pavement disease conditions, and evaluating the pavement health status, a scientific pavement repair and maintenance strategy can be formulated. In order to avoid damaging the originally intact asphalt pavement during the testing process and increase maintenance costs, non-destructive testing devices that do not contact the asphalt pavement are usually used to test the pavement.

[0003] Commonly used non-destructive testing devices do not have the function of cleaning asphalt pavement. However, when potholes appear on asphalt pavement, aggregate particles and even sewage that have fallen off the surface will accumulate in the potholes, interfering with the detection of the device. Utility Model Content

[0004] The utility model aims to provide a nondestructive testing device for asphalt pavement, which can clean aggregate particles and sewage fallen from pits on the asphalt pavement to avoid reduction in the testing effect of the device.

[0005] To achieve the above-mentioned purpose, a nondestructive testing device for asphalt pavement is provided, comprising a laser sensor and a first mounting plate, wherein a plurality of laser sensors are provided and are fixedly connected to the middle part of the upper end of the first mounting plate at equal distances, and the detection end of the laser sensor downwardly penetrates the first mounting plate, the upper end of the first mounting plate is fixedly connected to a high-pressure air pump, the output end of the high-pressure air pump is fixedly connected to a hose, the upper end of the first mounting plate is fixedly connected to two L-shaped connecting mechanisms, and the two connecting mechanisms are located at one end of the first mounting plate away from the high-pressure air pump and are symmetrical to each other, the end of the first mounting plate away from the high-pressure air pump is fixedly connected to a purge mechanism, and the end of the hose away from the high-pressure air pump is connected to the purge mechanism, the middle part of the upper end of the first mounting plate is fixedly connected to a mounting frame, and the mounting frame is on the same side as the two connecting mechanisms and is located between the two connecting mechanisms, one end of the mounting frame extends to the upper middle part of the purge mechanism, the upper end of the mounting frame is fixedly connected to an electric push rod, and the output end of the electric push rod downwardly penetrates the mounting frame, and the output end of the electric push rod is fixedly connected to the middle part of the upper end of the purge mechanism. It can clean up aggregate particles and sewage that fall off from the pits on the asphalt road surface, avoiding the reduction of the detection effect of the device.

[0006] According to the nondestructive testing device for asphalt pavement, the purging mechanism is composed of a connecting pipe, a fixing plate, a gas nozzle, a second mounting plate, a slider and a slide rail, the slide rail is fixedly connected to the first mounting plate, and the slide rail is provided with two and symmetrically arranged at the side end of the first mounting plate, the two connecting mechanisms are located between the two slide rails, the slider is arranged in the slide rail and slidably connected to the slide rail, the second mounting plate is located on the side of the slide rail away from the first mounting plate, and the sliders in the two slide rails are respectively fixedly connected to the second mounting plate, the fixing plate is provided with a plurality of equidistant fixed connections At the end of the second mounting plate away from the slide rail, and the fixed plate is an L-shaped structure, the gas nozzle penetrates the middle of the fixed plate, and the lower output end of the gas nozzle is inclined in the direction away from the second mounting plate, the connecting pipe is arranged above a plurality of fixed plates, and the upper input end of the gas nozzle is connected to the connecting pipe, the end of the hose away from the high-pressure air pump is fixedly connected to the middle of the upper end of the connecting pipe, and the end of the hose away from the high-pressure air pump is connected to the connecting pipe, one end of the mounting frame is located above the middle of the second mounting plate, and the output end of the electric push rod is fixedly connected to the upper end of the second mounting plate. The connecting pipe receives the high-pressure airflow compressed by the high-pressure air pump and transported by the hose, blows it to the ground through the gas nozzle, and uses the high-pressure airflow to clean the aggregate particles and sewage in the pits on the asphalt pavement, and the slide rail and the slider cooperate with the electric push rod to raise the height of the gas nozzle when the device is not working, so as to facilitate the movement of the device.

[0007] According to the nondestructive testing device for asphalt pavement, the connecting mechanism is composed of a connecting plate, a connecting bolt, a first support rod, a second support rod and a rotating plate, the second support rod is an L-shaped structure, and the second support rod is fixedly connected to the upper end of the first mounting plate, the rotating plate is fixedly connected to the middle of one end of the second support rod away from the first mounting plate, the first support rod is located on the side of the second support rod away from the first mounting plate, and the end of the rotating plate away from the second support rod extends into the first support rod and is rotatably connected to the first support rod, the connecting plate is fixedly connected to one end of the first support rod away from the rotating plate, and the first support rod is located in the middle of the connecting plate, the connecting bolts are respectively arranged at the four corners of the connecting plate, and the connecting bolts and the first support rod are located on the same side of the connecting plate, and the connecting bolts penetrate the connecting plate and are slidably connected to the connecting plate. The connecting rod and the connecting bolt cooperate to connect the device to the engineering vehicle, and the first support rod and the second support rod are connected through the rotating plate, so that the device can work on an asphalt pavement with a certain slope, thereby improving the applicability of the device.

[0008] According to the nondestructive testing device for asphalt pavement, two support plates are symmetrically fixedly connected to both side ends of the first mounting plate, shock absorbers are fixedly connected to the lower ends of the two support plates and the middle of the lower end of the first mounting plate respectively, and the shock absorber in the middle of the lower end of the first mounting plate is on the same side as the purge mechanism, a second moving wheel is provided below the support plate, and the bottom of the shock absorber at the lower end of the support plate is fixedly connected to the second moving wheel, the bottom of the shock absorber in the middle of the lower end of the first mounting plate is fixedly connected to the first moving wheel, and the bottom of the second moving wheel and the bottom of the first moving wheel are at the same height. The first moving wheel and the second moving wheel cooperate to support the device, making it easy for the device to move, and the shock absorber enables the device to have a buffering and shock-absorbing effect when moving.

[0009] According to the nondestructive testing device for asphalt pavement, two warning lights are symmetrically fixedly connected to the upper end of the first mounting plate, and a plurality of laser sensors are respectively located between the two warning lights. The warning lights are used to warn the device of its operation, display the working width of the device, and remind ordinary vehicles not to approach, so as to facilitate the device to work in a low-brightness environment.

[0010] According to the nondestructive testing device for asphalt pavement, a control mechanism is fixedly connected to the middle of the upper end of the first mounting plate, and the control mechanism is located on the side of the high-pressure air pump away from the laser sensor, and the control mechanism includes a wireless communication module. The control mechanism is used to collect detection information of the laser sensor and control the operation of the electric push rod and the high-pressure air pump. The wireless communication module enables the device to remotely receive and send information, reducing the lines that the device needs to connect.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: external air is sucked in and compressed by a high-pressure air pump, and then transported to the purge mechanism through a hose, so that the high-pressure airflow is blown toward the asphalt pavement through the gas nozzle of the purge mechanism, blowing out the detached aggregate particles and sewage in the small pits on the asphalt pavement, thereby ensuring the detection effect of the detection device on the asphalt pavement.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 This is a three-dimensional diagram of a non-destructive testing device for asphalt pavement according to the utility model;

[0015] Figure 2 It is a right view of a nondestructive testing device for asphalt pavement according to the utility model;

[0016] Figure 3 A three-dimensional diagram of a nondestructive testing device for asphalt pavement according to the utility model without the purge mechanism;

[0017] Figure 4 A three-dimensional diagram of a purge mechanism of a non-destructive testing device for asphalt pavement according to the utility model;

[0018] Figure 5 It is a right view of a purge mechanism of a non-destructive testing device for asphalt pavement according to the utility model;

[0019] Figure 6 The utility model is a three-dimensional diagram of a connection mechanism of a non-destructive testing device for asphalt pavement.

[0020] In the figure: 1. warning light; 2. connecting mechanism; 3. purge mechanism; 4. electric push rod; 5. first moving wheel; 6. first mounting plate; 7. laser sensor; 8. support plate; 9. high-pressure air pump; 10. control mechanism; 11. hose; 12. second moving wheel; 13. shock absorber; 14. mounting frame; 15. connecting pipe; 16. fixing plate; 17. gas nozzle; 18. second mounting plate; 19. slider; 20. slide rail; 21. connecting plate; 22. connecting bolt; 23. first support rod; 24. second support rod; 25. rotating plate. DETAILED DESCRIPTION

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

[0022] See also Figure 1 - Figure 6The utility model provides a technical solution: a nondestructive testing device for asphalt pavement, including a laser sensor 7 and a first mounting plate 6, wherein the laser sensor 7 is provided with a plurality of laser sensors 7 and fixedly connected to the middle part of the upper end of the first mounting plate 6 at equal distances, and the detection end of the laser sensor 7 downwardly penetrates the first mounting plate 6, the upper end of the first mounting plate 6 is fixedly connected to a high-pressure air pump 9, the output end of the high-pressure air pump 9 is fixedly connected to a hose 11, the upper end of the first mounting plate 6 is fixedly connected to two L-shaped connecting mechanisms 2, and the two connecting mechanisms 2 are located at one end of the first mounting plate 6 away from the high-pressure air pump 9 and are symmetrical to each other, the connecting mechanism 2 is composed of a connecting plate 21, a connecting bolt 22, a first support rod 23, a second support rod 24 and a rotating plate 25, and the second support rod 24 is an L shaped structure, and the second support rod 24 is fixedly connected to the upper end of the first mounting plate 6, the rotating plate 25 is fixedly connected to the middle of one end of the second support rod 24 away from the first mounting plate 6, the first support rod 23 is located on the side of the second support rod 24 away from the first mounting plate 6, and the end of the rotating plate 25 away from the second support rod 24 extends into the first support rod 23 and is rotatably connected to the first support rod 23, the connecting plate 21 is fixedly connected to one end of the first support rod 23 away from the rotating plate 25, and the first support rod 23 is located in the middle of the connecting plate 21, the connecting bolts 22 are respectively arranged at the four corners of the connecting plate 21, and the connecting bolts 22 and the first support rod 23 are located on the same side of the connecting plate 21, the connecting bolts 22 penetrate the connecting plate 21 and are slidably connected to the connecting plate 21, and the connecting rod The device is connected to the engineering vehicle by cooperating with the connecting bolt 22. The first support rod 23 and the second support rod 24 are connected by the rotating plate 25, so that the device can work on an asphalt road surface with a certain slope, thereby improving the applicability of the device. The end of the first mounting plate 6 away from the high-pressure air pump 9 is fixedly connected with the purge mechanism 3, and the end of the hose 11 away from the high-pressure air pump 9 is connected to the purge mechanism 3. The purge mechanism 3 is composed of a connecting pipe 15, a fixed plate 16, a gas nozzle 17, a second mounting plate 18, a slider 19 and a slide rail 20. The slide rail 20 is fixedly connected to the first mounting plate 6, and the slide rail 20 is provided with two and symmetrically arranged at the side end of the first mounting plate 6. The two connecting mechanisms 2 are located between the two slide rails 20, and the slider 19 is arranged in the slide rail 20 and The second mounting plate 18 is slidably connected to the slide rail 20, the second mounting plate 18 is located on the side of the slide rail 20 away from the first mounting plate 6, and the sliders 19 in the two slide rails 20 are respectively fixedly connected to the second mounting plate 18, the fixed plate 16 is provided with a plurality of fixed plates 16 and equidistantly fixedly connected to the end of the second mounting plate 18 away from the slide rail 20, and the fixed plate 16 is an L-shaped structure, the gas nozzle 17 passes through the middle of the fixed plate 16, and the lower output end of the gas nozzle 17 is inclined in the direction away from the second mounting plate 18, the connecting pipe 15 is arranged above the plurality of fixed plates 16, and the upper input end of the gas nozzle 17 is connected to the connecting pipe 15, the end of the hose 11 away from the high-pressure air pump 9 is fixedly connected to the middle of the upper end of the connecting pipe 15, and the end of the hose 11 away from the high-pressure air pump 9 is connected to the connecting pipe 15,One end of the mounting frame 14 is located above the middle of the second mounting plate 18, and the output end of the electric push rod 4 is fixedly connected to the upper end of the second mounting plate 18. The connecting pipe 15 receives the high-pressure airflow compressed by the high-pressure air pump 9 and delivered by the hose 11, and blows it to the ground through the gas nozzle 17. The high-pressure airflow is used to clean the aggregate particles and sewage in the pits on the asphalt road surface. The slide rail 20 and the slider 19 cooperate with the electric push rod 4 to raise the height of the gas nozzle 17 when the device is not working, so as to facilitate the movement of the device. The middle part of the upper end of the first mounting plate 6 is fixedly connected with the mounting frame 14, and the mounting frame 14 is connected to the two The connecting mechanism 2 is on the same side and is located between the two connecting mechanisms 2. One end of the mounting frame 14 extends to the upper middle part of the purge mechanism 3. The upper end of the mounting frame 14 is fixedly connected to the electric push rod 4, and the output end of the electric push rod 4 passes through the mounting frame 14 downward. The output end of the electric push rod 4 is fixedly connected to the middle part of the upper end of the purge mechanism 3. Two side ends of the first mounting plate 6 are symmetrically fixedly connected to two support plates 8. The lower ends of the two support plates 8 and the middle part of the lower end of the first mounting plate 6 are respectively fixedly connected with shock absorbers 13. The shock absorber 13 in the middle part of the lower end of the first mounting plate 6 is on the same side as the purge mechanism 3. The lower part of the support plate 8 A second moving wheel 12 is provided, and the bottom of the shock absorber 13 at the lower end of the support plate 8 is fixedly connected to the second moving wheel 12, and the bottom of the shock absorber 13 in the middle of the lower end of the first mounting plate 6 is fixedly connected to the first moving wheel 5, and the bottoms of the second moving wheel 12 and the first moving wheel 5 are at the same height, and the first moving wheel 5 and the second moving wheel 12 cooperate to support the device, so that the device can be moved. At the same time, the shock absorber 13 enables the device to have a buffering and shock-absorbing effect when moving. Two warning lights 1 are symmetrically fixedly connected to the upper end of the first mounting plate 6, and a plurality of laser sensors 7 are respectively located between the two warning lights 1. The warning lights 1 is used to warn the device of its operation, display the working width of the device, and remind ordinary vehicles not to approach, so that the device can work in a low-brightness environment. A control mechanism 10 is fixedly connected to the middle of the upper end of the first mounting plate 6, and the control mechanism 10 is located on the side of the high-pressure air pump 9 away from the laser sensor 7. The control mechanism 10 includes a wireless communication module. The control mechanism 10 is used to collect detection information of the laser sensor 7 and control the operation of the electric push rod 4 and the high-pressure air pump 9. The wireless communication module enables the device to receive and send information remotely, reducing the lines that the device needs to connect. ,

[0023] Working principle: When in use, the device is connected to the rear of the engineering vehicle through the connecting plate 21 and the connecting bolt 22, and the second mounting plate 18 is pushed downward by the electric push rod 4. The second mounting plate 18 descends and drives the slider 19 to slide in the slide rail 20, so that the gas nozzle 17 is close to the asphalt road surface. The engineering vehicle drives the device to travel slowly and uniformly on the asphalt road surface. During the driving process, the high-pressure air pump 9 inhales external air and compresses it. The high-pressure airflow formed by the compression enters the connecting pipe 15 through the hose 11 and is blown toward the asphalt road surface through the gas nozzle 17. When the device passes through the pit on the asphalt road surface, the scattered aggregate particles and accumulated sewage in the pit are cleaned out of the pit, and the laser sensor 7 scans the asphalt road surface after being cleaned by the gas nozzle 17. The scanned information is collected by the control mechanism 10 and sent to the staff.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A non-destructive testing device for an asphalt pavement, comprising a laser sensor (7) and a first mounting plate (6), characterized in that: The laser sensors (7) are provided with a plurality of them and are fixedly connected to the middle part of the upper end of the first mounting plate (6) at equal distances, and the detection end of the laser sensor (7) passes through the first mounting plate (6) downwardly, the upper end of the first mounting plate (6) is fixedly connected to a high-pressure air pump (9), the output end of the high-pressure air pump (9) is fixedly connected to a hose (11), the upper end of the first mounting plate (6) is fixedly connected to two L-shaped connecting mechanisms (2), and the two connecting mechanisms (2) are located at one end of the first mounting plate (6) away from the high-pressure air pump (9) and are symmetrical to each other, and the end of the first mounting plate (6) away from the high-pressure air pump (9) is fixedly connected A purge mechanism (3) is provided, and one end of the hose (11) away from the high-pressure air pump (9) is connected to the purge mechanism (3); a mounting frame (14) is fixedly connected to the middle of the upper end of the first mounting plate (6), and the mounting frame (14) is on the same side as the two connecting mechanisms (2) and is located between the two connecting mechanisms (2); one end of the mounting frame (14) extends to above the middle of the purge mechanism (3); an electric push rod (4) is fixedly connected to the upper end of the mounting frame (14), and the output end of the electric push rod (4) passes through the mounting frame (14) downward, and the output end of the electric push rod (4) is fixedly connected to the middle of the upper end of the purge mechanism (3).

2. The nondestructive testing device for asphalt pavement according to claim 1, characterized in that: The purge mechanism (3) is composed of a connecting pipe (15), a fixed plate (16), a gas nozzle (17), a second mounting plate (18), a slider (19) and a slide rail (20); the slide rail (20) is fixedly connected to the first mounting plate (6), and the slide rail (20) is provided with two sliders symmetrically arranged at the side ends of the first mounting plate (6); the two connecting mechanisms (2) are located between the two slide rails (20); the slider (19) is arranged in the slide rail (20) and is slidably connected to the slide rail (20); the second mounting plate (18) is located on a side of the slide rail (20) away from the first mounting plate (6), and the sliders (19) in the two slide rails (20) are respectively fixedly connected to the second mounting plate (18); the fixed plate (16) is provided with a plurality of sliders equidistantly fixedly connected to the second mounting plate ( The gas nozzle (17) penetrates the middle of the fixed plate (16), and the lower output end of the gas nozzle (17) is inclined in a direction away from the second mounting plate (18). The connecting pipe (15) is arranged above the plurality of fixed plates (16), and the upper input end of the gas nozzle (17) is connected to the connecting pipe (15). The end of the hose (11) away from the high-pressure air pump (9) is fixedly connected to the middle of the upper end of the connecting pipe (15), and the end of the hose (11) away from the high-pressure air pump (9) is connected to the connecting pipe (15). One end of the mounting frame (14) is located above the middle of the second mounting plate (18), and the output end of the electric push rod (4) is fixedly connected to the upper end of the second mounting plate (18).

3. The nondestructive testing device for asphalt pavement according to claim 1, characterized in that: The connecting mechanism (2) is composed of a connecting plate (21), a connecting bolt (22), a first support rod (23), a second support rod (24) and a rotating plate (25); the second support rod (24) is an L-shaped structure, and the second support rod (24) is fixedly connected to the upper end of the first mounting plate (6); the rotating plate (25) is fixedly connected to the middle of one end of the second support rod (24) away from the first mounting plate (6); the first support rod (23) is located on a side of the second support rod (24) away from the first mounting plate (6), and the rotating plate (25) is away from the second support rod (24). One end of the support rod (24) extends into the first support rod (23) and is rotatably connected to the first support rod (23); the connecting plate (21) is fixedly connected to one end of the first support rod (23) away from the rotating plate (25); the first support rod (23) is located in the middle of the connecting plate (21); the connecting bolts (22) are respectively arranged at four corners of the connecting plate (21); the connecting bolts (22) and the first support rod (23) are located on the same side of the connecting plate (21); the connecting bolts (22) penetrate the connecting plate (21) and are slidably connected to the connecting plate (21).

4. The nondestructive testing device for asphalt pavement according to claim 1, characterized in that: Two support plates (8) are symmetrically fixedly connected to both side ends of the first mounting plate (6); shock absorbers (13) are fixedly connected to the lower ends of the two support plates (8) and the middle of the lower end of the first mounting plate (6), respectively; the shock absorber (13) in the middle of the lower end of the first mounting plate (6) is on the same side as the purge mechanism (3); a second moving wheel (12) is provided below the support plate (8); the bottom of the shock absorber (13) at the lower end of the support plate (8) is fixedly connected to the second moving wheel (12); the bottom of the shock absorber (13) in the middle of the lower end of the first mounting plate (6) is fixedly connected to the first moving wheel (5); and the bottoms of the second moving wheel (12) and the first moving wheel (5) are at the same height.

5. The nondestructive testing device for asphalt pavement according to claim 1, characterized in that: Two warning lights (1) are symmetrically fixedly connected to the upper end of the first mounting plate (6), and a plurality of laser sensors (7) are respectively located between the two warning lights (1).

6. The nondestructive testing device for asphalt pavement according to claim 1, characterized in that: A control mechanism (10) is fixedly connected to the middle of the upper end of the first mounting plate (6), and the control mechanism (10) is located on a side of the high-pressure air pump (9) away from the laser sensor (7), and the control mechanism (10) includes a wireless communication module.

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