A non-destructive testing device for asphalt pavement

Abstract

This utility model discloses a non-destructive testing device for asphalt pavement, including a base plate. A blowing mechanism for blowing the asphalt pavement is provided on the inclined plate. A cleaning mechanism for brushing and cleaning the asphalt pavement is provided at the bottom of the base plate. This utility model, through the design of a lifting plate, an electric push rod, the blowing mechanism, and the cleaning mechanism, uses the electric push rod in conjunction with the lifting plate to adjust the blowing mechanism, allowing it to approach the asphalt pavement and blow it. This ensures that the high-pressure airflow effectively removes road particles, stones, and other foreign objects, preventing interference with the testing process. Simultaneously, the cleaning mechanism brushes and cleans the asphalt pavement after blowing, removing residual debris through secondary cleaning, further ensuring a clean testing environment, eliminating the risk of misjudgment due to foreign object obstruction, significantly improving testing accuracy, and preventing distortion of test results due to foreign object interference.

Description

Technical Field

[0001] This utility model relates to the technical field of road surface testing equipment, specifically a non-destructive testing device for asphalt pavement. Background Technology

[0002] In the field of road construction and maintenance, non-destructive testing devices for asphalt pavements play a crucial role. They can test various performance indicators of asphalt pavements without damaging the pavement structure, providing important information for road maintenance and repair.

[0003] The prior art provides a non-destructive testing device for asphalt pavement (publication number CN222043817U). This utility model includes a mounting frame, on which a sliding rod module is provided, and at least one baffle is slidably mounted on the sliding rod module; each baffle is provided with a lifting wheel, each lifting wheel is in contact with the asphalt pavement to be tested, and each lifting wheel is used to control the vertical lifting movement of each baffle; a testing module is also provided on the mounting frame, which is used to detect the horizontal height of each baffle, and the output end of the testing module is electrically connected to a controller.

[0004] The aforementioned existing technologies have the following problems in practical use:

[0005] When there are stones or pebbles on the road surface, the lifting wheel will be forced to rise due to the obstruction of foreign objects, causing the baffle to rise synchronously. This causes the distance sensor to misjudge the road surface as a protrusion, resulting in distorted detection results. Therefore, we need to propose a non-destructive testing device for asphalt pavement. Utility Model Content

[0006] The purpose of this invention is to provide a non-destructive testing device for asphalt pavement, so as to solve the problem mentioned in the background art that the lack of cleaning of pavement particles and stones leads to distorted test results.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A non-destructive testing device for asphalt pavement includes a base plate, an electric push rod fixedly installed on the top of the base plate, a lifting plate fixedly installed on the telescopic end of the electric push rod, an inclined plate fixedly connected to the lifting plate, and a blowing mechanism for blowing the asphalt pavement on the inclined plate.

[0009] The bottom of the base plate is equipped with a cleaning mechanism for brushing and cleaning asphalt pavement.

[0010] Preferably, the purging mechanism includes an installation pipe, nozzles, and a delivery hose. The installation pipe is fixedly installed on the side of the inclined plate. Multiple sets of nozzles are provided, and all sets of nozzles are connected to the installation pipe. All sets of nozzles are inclined. The delivery hose is connected to the end of the installation pipe.

[0011] Preferably, a high-pressure air pump is fixedly installed on the top of the base plate, and the air outlet of the high-pressure air pump is connected to a connecting pipe, with the delivery hose connected to the lower end of the connecting pipe.

[0012] Preferably, the cleaning mechanism includes a first cleaning brush roller, a first drive motor, a first pulley, a second pulley, a second cleaning brush roller, a second drive motor, a third pulley, and a fourth pulley. The first and second cleaning brush rollers are both movably mounted on the bottom of the base plate and are both inclined. The first and second drive motors are both fixedly mounted on the top of the base plate. The first pulley is fixedly mounted on the output shaft of the first drive motor, and the second pulley is fixedly mounted on the rotating rod of the first cleaning brush roller. The first and second pulleys are driven by a belt. The third pulley is fixedly mounted on the output shaft of the second drive motor, and the fourth pulley is fixedly mounted on the rotating rod of the second cleaning brush roller. The third and fourth pulleys are driven by a belt.

[0013] Preferably, multiple sets of laser sensors for scanning the cleaned asphalt pavement are fixedly installed on the top of the base plate.

[0014] Preferably, a baffle for blocking is fixedly installed at the bottom of the base plate, and the baffle is disposed between the second cleaning brush roller and the laser sensor.

[0015] Preferably, two sets of mounting seats are symmetrically fixedly installed on the top of the base plate, and an adjustment frame is fixedly installed in each set of mounting seats.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention utilizes a design incorporating a lifting plate, an electric push rod, a blowing mechanism, and a cleaning mechanism. The electric push rod, in conjunction with the lifting plate, adjusts the blowing mechanism, allowing it to approach the asphalt pavement and effectively blow away particles, stones, and other foreign objects. This prevents interference with the testing process. Simultaneously, the cleaning mechanism brushes and cleans the asphalt pavement after blowing, removing residual debris and further ensuring a clean testing environment. This eliminates the risk of misjudgments due to foreign object obstruction, significantly improving testing accuracy and preventing distortion of results due to foreign object interference. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0019] Figure 2 This is the second structural schematic diagram of the present invention;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the purging mechanism of this utility model.

[0022] In the diagram: 1. Base plate; 2. First cleaning brush roller; 3. First drive motor; 4. First pulley; 5. Second pulley; 6. Second cleaning brush roller; 7. Second drive motor; 8. Third pulley; 9. Fourth pulley; 10. Wireless module; 11. Baffle; 12. Laser sensor; 13. Electric push rod; 14. Lifting plate; 15. Inclined plate; 16. Mounting pipe; 17. Nozzle; 18. High-pressure air pump; 19. Connecting pipe; 20. Delivery hose; 21. Mounting base; 22. Adjusting frame; 23. Guide rod; 24. Mounting housing; 25. PLC controller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A non-destructive testing device for asphalt pavement includes a base plate 1, an electric push rod 13 is fixedly installed on the top of the base plate 1, a lifting plate 14 is fixedly installed on the telescopic end of the electric push rod 13, an inclined plate 15 is fixedly connected to the lifting plate 14 and a blowing mechanism for blowing the asphalt pavement is provided on the inclined plate 15.

[0026] The bottom of the base plate 1 is equipped with a cleaning mechanism for brushing and cleaning the asphalt pavement.

[0027] Two sets of guide rods 23 are symmetrically fixedly installed on the top of the lifting plate 14, and both sets of guide rods 23 are movably inserted into the base plate 1.

[0028] It should be noted that the inclined plate 15 is used to install the mounting tube 16. When the electric push rod 13 adjusts the lifting plate 14, the guide rod 23 guides the lifting plate 14, so that the lifting plate 14 can move stably.

[0029] In an optional embodiment: such as Figure 3 and 4 As shown, the purging mechanism includes an installation pipe 16, a nozzle 17, and a delivery hose 20. The installation pipe 16 is fixedly installed on the side of the inclined plate 15. Multiple sets of nozzles 17 are provided, and all sets of nozzles 17 are connected to the installation pipe 16. All sets of nozzles 17 are inclined. The delivery hose 20 is connected to the end of the installation pipe 16.

[0030] It should be noted that the lifting plate 14, the tilting plate 15 and the installation pipe 16 are all set at obtuse angles, so that when sweeping the aggregate stones on the asphalt pavement, the aggregate stones can be discharged from the cleaned pavement along the tilting edge during the sweeping process, reducing the accumulation of aggregate stones after cleaning and preventing the inability to effectively sweep the aggregate stones due to excessive accumulation.

[0031] In an optional embodiment: such as Figure 1 and Figure 3 As shown, a high-pressure air pump 18 is fixedly installed on the top of the base plate 1. The air outlet of the high-pressure air pump 18 is connected to a connecting pipe 19, and a delivery hose 20 is connected to the lower end of the connecting pipe 19.

[0032] It should be noted that the high-pressure air pump 18, in conjunction with the connecting pipe 19, is used to deliver high-pressure gas into the delivery hose 20 and the installation pipe 16.

[0033] In an optional embodiment: such as Figure 2 and Figure 3 As shown, the cleaning mechanism includes a first cleaning brush roller 2, a first drive motor 3, a first pulley 4, a second pulley 5, a second cleaning brush roller 6, a second drive motor 7, a third pulley 8, and a fourth pulley 9. The first cleaning brush roller 2 and the second cleaning brush roller 6 are both movably mounted on the bottom of the base plate 1, and both are inclined. The first drive motor 3 and the second drive motor 7 are both fixedly mounted on the top of the base plate 1. The first pulley 4 is fixedly mounted on the output shaft of the first drive motor 3, and the second pulley 5 is fixedly mounted on the rotating rod of the first cleaning brush roller 2. The first pulley 4 and the second pulley 5 are driven by a belt. The third pulley 8 is fixedly mounted on the output shaft of the second drive motor 7, and the fourth pulley 9 is fixedly mounted on the rotating rod of the second cleaning brush roller 6. The third pulley 8 and the fourth pulley 9 are driven by a belt.

[0034] It should be noted that when the engineering vehicle towing device moves forward, the first drive motor 3 and the second drive motor 7 drive the first cleaning brush roller 2 and the second cleaning brush roller 6 to rotate counterclockwise, and the first cleaning brush roller 2 and the second cleaning brush roller 6 are arranged in a herringbone pattern.

[0035] When the first drive motor 3, the first pulley 4, the second pulley 5, the second drive motor 7, the belt, the third pulley 8, and the fourth pulley 9 drive the first cleaning brush roller 2 and the second cleaning brush roller 6 to rotate, the first cleaning brush roller 2 and the second cleaning brush roller 6 can brush and clean the asphalt pavement after it has been blown by the blowing mechanism. The secondary cleaning removes residual debris, further ensuring the cleanliness of the testing environment. When the first cleaning brush roller 2 and the second cleaning brush roller 6 brush and clean the granular stones on the cleaned pavement, the granular stones are discharged from the cleaned pavement along the inclined edge, preventing them from affecting the subsequent scanning of the asphalt pavement.

[0036] In an optional embodiment: such as Figures 1-3 As shown, multiple sets of laser sensors 12 for scanning the cleaned asphalt pavement are fixedly installed on the top of the base plate 1.

[0037] It should be noted that the laser sensor 12 is used to scan the cleaned asphalt pavement.

[0038] In an optional embodiment: such as Figure 2 and Figure 3 As shown, a baffle 11 for blocking is fixedly installed at the bottom of the base plate 1. The baffle 11 is located between the second cleaning brush roller 6 and the laser sensor 12.

[0039] It should be noted that the baffle 11 serves to isolate the first cleaning brush roller 2, the second cleaning brush roller 6 and the laser sensor 12, preventing debris generated when the first cleaning brush roller 2 and the second cleaning brush roller 6 clean the asphalt road surface from adhering to the laser sensor 12 and affecting the normal use of the laser sensor 12.

[0040] In an optional embodiment: such as Figure 1 and Figure 3 As shown, two sets of mounting seats 21 are symmetrically fixedly installed on the top of the base plate 1, and an adjustment bracket 22 is fixedly installed in each of the two sets of mounting seats 21.

[0041] It should be noted that the mounting base 21 and the adjusting bracket 22 cooperate to install the device on engineering vehicles. In addition, the adjusting bracket 22 is adjustable within the mounting base 21, so that after adjusting the adjusting bracket 22 as needed, the adjusting bracket 22 can be fixed within the mounting base 21.

[0042] A mounting shell 24 is fixedly installed on the top of the base plate 1. A wireless module 10 and a PLC controller 25 are fixedly installed inside the mounting shell 24. The first drive motor 3, the second drive motor 7, the wireless module 10, the laser sensor 12, the electric push rod 13 and the high-pressure air pump 18 are all electrically connected to the mounting shell 24.

[0043] The PLC controller 25 can be used to control the first drive motor 3, the second drive motor 7, the electric push rod 13 and the high-pressure air pump 18. The wireless module 10 is wirelessly connected to the terminal equipment of the staff, so that the information scanned by the laser sensor 12 can be sent to the staff through the wireless module 10.

[0044] The usage process of this utility model is as follows: When in use, the base plate 1 is fixed to the rear of the engineering vehicle by adjusting the frame 22, the second cleaning brush roller 6 contacts the asphalt road surface, the electric push rod 13 is activated, and the telescopic end of the electric push rod 13 pushes the lifting plate 14, so that the nozzle 17 is close to the asphalt road surface.

[0045] Start the connecting pipe 19. The connecting pipe 19 draws in outside air and compresses it. The high-pressure gas formed by compression is delivered to the inside of the delivery hose 20 through the connecting pipe 19. The delivery hose 20 delivers the gas to the installation pipe 16. The high-pressure gas delivered to the installation pipe 16 is sprayed onto the asphalt pavement through the nozzle 17 to sweep away the particles and stones on the asphalt pavement. This ensures that the high-pressure airflow can effectively remove foreign objects such as road particles and stones, and avoids foreign objects from interfering with the detection process.

[0046] When the engineering vehicle moves the device, the first drive motor 3 and the second drive motor 7 are started. The output shaft of the first drive motor 3 drives the first pulley 4 to rotate. When the first pulley 4 rotates, it drives the second pulley 5 to rotate through the belt. When the second pulley 5 rotates, it drives the first cleaning brush roller 2 to rotate. The output shaft of the second drive motor 7 drives the third pulley 8 to rotate. When the third pulley 8 rotates, it drives the fourth pulley 9 to rotate through the belt. When the fourth pulley 9 rotates, it drives the second cleaning brush roller 6 to rotate. When the first cleaning brush roller 2 and the second cleaning brush roller 6 rotate, they can brush and clean the asphalt pavement after it has been swept by the sweeping mechanism. The secondary cleaning removes residual debris and further ensures the cleanliness of the testing environment.

[0047] When the device moves, the laser sensor 12 scans the cleaned asphalt pavement. If the pavement is flat, the reflection path of the laser beam is stable, and the light intensity and position distribution received by the detector are uniform. If there are defects such as potholes or cracks on the pavement, the path of the reflected light will change due to the change in surface height, causing distortion of the light intensity, spot position or shape received by the detector. The scanned information is collected by the PLC controller 25 and sent to the terminal equipment of the staff.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing device for asphalt pavement, characterized in that: Includes a base plate (1), on the top of the base plate (1) is a fixed electric push rod (13), and a lifting plate (14) is fixedly installed at the telescopic end of the electric push rod (13). Two sets of guide rods (23) are symmetrically fixedly installed on the top of the lifting plate (14). Both sets of guide rods (23) are movably inserted into the base plate (1). An inclined plate (15) is fixedly connected to the lifting plate (14) and a sweeping mechanism for sweeping asphalt pavement is provided on the inclined plate (15). The purging mechanism includes an installation pipe (16), a nozzle (17), and a delivery hose (20). The installation pipe (16) is fixedly installed on the side of the inclined plate (15). The nozzle (17) is provided in multiple sets, and all sets of nozzles (17) are connected to the installation pipe (16). All sets of nozzles (17) are inclined. The delivery hose (20) is connected to the end of the installation pipe (16). The lifting plate (14), the inclined plate (15), and the installation pipe (16) are all set at an obtuse angle. A high-pressure air pump (18) is fixedly installed on the top of the base plate (1). The air outlet of the high-pressure air pump (18) is connected to a connecting pipe (19). The delivery hose (20) is connected to the lower end of the connecting pipe (19). The bottom of the base plate (1) is provided with a cleaning mechanism for brushing and cleaning asphalt pavement. The cleaning mechanism includes a first cleaning brush roller (2), a first drive motor (3), a first pulley (4), a second pulley (5), a second cleaning brush roller (6), a second drive motor (7), a third pulley (8), and a fourth pulley (9). The first cleaning brush roller (2) and the second cleaning brush roller (6) are both movably installed at the bottom of the base plate (1). The first cleaning brush roller (2) and the second cleaning brush roller (6) are both inclined and arranged in a herringbone shape. The first drive motor ( 3) Both the first pulley (4) and the second drive motor (7) are fixedly installed on the top of the base plate (1). The first pulley (4) is fixedly installed on the output shaft of the first drive motor (3). The second pulley (5) is fixedly installed on the rotating rod of the first cleaning brush roller (2). The first pulley (4) and the second pulley (5) are driven by a belt. The third pulley (8) is fixedly installed on the output shaft of the second drive motor (7). The fourth pulley (9) is fixedly installed on the rotating rod of the second cleaning brush roller (6). The third pulley (8) and the fourth pulley (9) are driven by a belt. Multiple sets of laser sensors (12) for scanning the cleaned asphalt pavement are fixedly installed on the top of the base plate (1).

2. The non-destructive testing device for asphalt pavement according to claim 1, characterized in that: A baffle (11) for blocking is fixedly installed at the bottom of the base plate (1), and the baffle (11) is disposed between the second cleaning brush roller (6) and the laser sensor (12).

3. The non-destructive testing device for asphalt pavement according to claim 1, characterized in that: The top of the base plate (1) is symmetrically fixed with two sets of mounting seats (21), and an adjustment bracket (22) is fixedly installed in each of the two sets of mounting seats (21).

4. The non-destructive testing device for asphalt pavement according to claim 1, characterized in that: A mounting shell (24) is fixedly installed on the top of the base plate (1). A wireless module (10) and a PLC controller (25) are fixedly installed inside the mounting shell (24). The first drive motor (3), the second drive motor (7), the wireless module (10), the laser sensor (12), the electric push rod (13), and the high-pressure air pump (18) are all electrically connected to the mounting shell (24).

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