Asphalt pavement flatness detection device

Abstract

The utility model relates to the technical field of road engineering detection equipment, in particular to an asphalt pavement flatness detection device which comprises a frame, a fixing plate is fixedly connected inside the frame, a multi-laser flatness sensor is fixedly connected to one side of the fixing plate, connecting rods are arranged on one side of the fixing plate and located below the multi-laser flatness sensor at equal intervals, and the connecting rods are fixedly connected with the frame. The tops of the connecting rods make contact with the output ends of the multi-laser flatness sensors, abutting wheels are fixedly connected to the bottoms of the connecting rods, connecting frames are symmetrically and fixedly connected to the two sides of the bottom of the vehicle frame, and sweeping roller brushes are rotationally connected to the interiors of the connecting frames. The device has the beneficial effects that impurities such as dust and gravels on the road surface can be removed through the cleaning roller brush, so that the detection device can more accurately measure the fluctuation and defects of the road surface, the potential problem of neglecting due to the covering of the impurities is avoided, and the detection accuracy is improved through the multi-laser flatness sensor in combination with a high-precision data processing algorithm. The detection accuracy is effectively improved, and errors are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of road engineering testing equipment, and in particular to an asphalt pavement smoothness testing device. Background Technology

[0002] Asphalt pavement is a common type of road paving, mainly made of asphalt mixture. It is widely used in transportation infrastructure such as highways, urban roads, and airport runways. Asphalt mixture is made by mixing asphalt binder, mineral materials such as crushed stone, sand, and mineral powder in a certain proportion. It has good adhesion, durability, and resistance to deformation.

[0003] Asphalt pavement smoothness is an important indicator of road quality, directly affecting driving comfort, safety, and road lifespan.

[0004] Existing methods for testing the smoothness of asphalt pavements rely on manual measurement using tools such as 3m rulers. This is not only inefficient, but the test results are also greatly affected by human factors, making it difficult to control errors. On the other hand, some automated testing equipment has problems such as complex structure, high cost, and inability to adapt to different pavement conditions and testing needs.

[0005] To address the above issues, we have developed an asphalt pavement smoothness testing device. Utility Model Content

[0006] This utility model discloses an asphalt pavement smoothness testing device, which aims to solve the technical problems in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An asphalt pavement smoothness detection device includes a frame. A fixing plate is fixedly connected inside the frame. A multi-laser smoothness sensor is fixedly connected to one side of the fixing plate. Connecting rods are equidistantly arranged on one side of the fixing plate and below the multi-laser smoothness sensor. The top of each connecting rod is in contact with the output end of the multi-laser smoothness sensor. A pressure wheel is fixedly connected to the bottom of each connecting rod. Connecting frames are symmetrically fixedly connected to both sides of the bottom of the frame. A sweeping brush is rotatably connected inside each connecting frame. A motor is fixedly connected to one side of each connecting frame. The output shaft of each motor extends into the interior of the corresponding connecting frame and is fixedly connected to one end of the sweeping brush.

[0009] In the process of detecting the smoothness of asphalt pavement on newly built urban roads, the staff connects the detection device to the vehicle via a trailer hitch. The motor drives the sweeping roller to rotate and clean the road surface, removing debris and dust. The pressure roller rolls along the road surface, and the unevenness of the road surface causes the pressure roller to transmit information to the multi-laser smoothness sensor through the connecting rod. The multi-laser smoothness sensor feeds back the detected road surface smoothness data to the external control equipment, allowing the staff to monitor the road surface smoothness in real time.

[0010] In a preferred embodiment, a bucket is provided at one end of the vehicle frame below the vehicle frame, and a cylinder is rotatably connected to the bottom of the vehicle frame, with the output end of the cylinder rotatably connected to the top of the bucket.

[0011] By setting it so that if there are large stones, garbage or other obstacles on the road, when the cylinder extends, it pushes the bucket down to make the bucket contact the road surface. As the device moves forward, the bucket scoops up and collects the obstacles, preventing the obstacles from affecting the normal rolling of the pressure roller and the detection results of the multi-laser flatness sensor.

[0012] In a preferred embodiment, stabilizer bars are rotatably connected to both sides of one end of the frame, and the ends of the stabilizer bars away from the frame are rotatably connected to the top of the bucket.

[0013] The stabilizer bar stabilizes the bucket. When the cylinder pushes the bucket down or up, the stabilizer bar rotates with the movement of the bucket, ensuring that the bucket does not sway or deviate during the movement. This allows the bucket to accurately complete the action of scooping up obstacles, improving the stability and reliability of the device.

[0014] In a preferred embodiment, the fixed plate has through slots equidistantly spaced inside, each through slot has a sliding rod fixedly connected inside, and each sliding rod has a connecting block slidably connected to its corresponding connecting block.

[0015] By setting the roller to move the connecting rod up and down when it encounters uneven surfaces on the road, and since the connecting rod is fixedly connected to the connecting block, the connecting block will slide on the sliding rod, allowing the roller to adapt more flexibly to changes in road surface undulations, ensuring that the multi-laser smoothness sensor can accurately detect the smoothness of the road surface.

[0016] In a preferred embodiment, a spring is fitted around the outside of the sliding rod and between the top of the inner wall of the through groove and the top of the connecting block.

[0017] By setting a spring to buffer and reset during the sliding process of the connecting block, when the pressure roller encounters a protrusion and the connecting block slides upward, the spring is compressed, absorbing part of the impact force.

[0018] In a preferred embodiment, a trailer hitch connector is fixedly connected to one end of the vehicle frame, and two wheels are fixedly connected to both sides of the bottom end of the vehicle frame.

[0019] In actual testing, staff connect the trailer to the towing vehicle, which then moves the device on the road. The wheels allow the device to travel smoothly on the road, ensuring its mobility and flexibility.

[0020] In a preferred embodiment, the multi-laser flatness sensor, motor, and cylinder are all electrically connected to an external control device.

[0021] By setting up an external control device, staff can easily operate and monitor the device. At the same time, it can receive data detected by multiple laser smoothness sensors in real time, analyze and process the data, and generate a road surface smoothness test report, providing an accurate basis for road construction and maintenance.

[0022] The asphalt pavement smoothness testing device provided by this utility model has the following advantages:

[0023] In this utility model, the motor drives the sweeping roller brush to rotate and sweep the road surface to remove debris and dust. The pressure roller rolls along the road surface. The undulations of the road surface cause the pressure roller to transmit information to the multi-laser flatness sensor through the connecting rod. The multi-laser flatness sensor feeds back the detected road surface flatness data to the external control device.

[0024] 1. The sweeping roller brush can remove debris such as dust, gravel, and leaves from the road surface, enabling the testing equipment to more accurately measure the road surface's undulations and defects, and avoid overlooking potential problems due to debris covering them.

[0025] 2. By using multiple laser flatness sensors combined with high-precision data processing algorithms, the accuracy of detection is effectively improved and errors are reduced;

[0026] 3. This device can detect road surface smoothness in real time while the vehicle is in motion. It can adapt to different road conditions and detection needs, and has a wide range of application prospects. Compared with traditional devices, it greatly improves the quality of operation and efficiency of use. Attached Figure Description

[0027] Figure 1 This is a first-view perspective three-dimensional schematic diagram of an asphalt pavement smoothness detection device proposed in this utility model.

[0028] Figure 2 This is a second-view perspective three-dimensional schematic diagram of an asphalt pavement smoothness detection device proposed in this utility model.

[0029] Figure 3 This is a schematic diagram of the connecting frame structure of an asphalt pavement smoothness testing device proposed in this utility model.

[0030] Figure 4 This is a schematic diagram of the bucket structure of an asphalt pavement smoothness testing device proposed in this utility model.

[0031] Figure 5 This is a schematic diagram of the connecting rod structure of an asphalt pavement smoothness testing device proposed in this utility model.

[0032] In the attached diagram: 1. Frame; 2. Fixing plate; 3. Multi-laser flatness sensor; 4. Connecting rod; 5. Pressure roller; 6. Connecting frame; 7. Sweeping roller brush; 8. Motor; 9. Bucket; 10. Cylinder; 11. Stabilizer bar; 12. Through groove; 13. Sliding rod; 14. Connecting block; 15. Spring; 16. Vehicle trailer connector; 17. Traveling wheel. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] The asphalt pavement smoothness testing device disclosed in this utility model is mainly used in road engineering testing equipment scenarios.

[0035] Reference Figures 1-5 An asphalt pavement smoothness detection device includes a frame 1. A fixing plate 2 is fixedly connected inside the frame 1. A multi-laser smoothness sensor 3 is fixedly connected to one side of the fixing plate 2. Connecting rods 4 are equidistantly arranged on one side of the fixing plate 2 and below the multi-laser smoothness sensor 3. The top of each connecting rod 4 is in contact with the output end of the multi-laser smoothness sensor 3. A pressure wheel 5 is fixedly connected to the bottom of each connecting rod 4. Connecting frames 6 are symmetrically fixedly connected to both sides of the bottom of the frame 1. A sweeping roller brush 7 is rotatably connected inside each connecting frame 6. A motor 8 is fixedly connected to one side of each connecting frame 6. The output shaft of each motor 8 extends into the corresponding connecting frame 6 and is fixedly connected to one end of the sweeping roller brush 7.

[0036] In this embodiment, during the asphalt pavement smoothness inspection of newly built urban roads, the staff connects the inspection device to the vehicle via a trailer hitch 16. The motor 8 drives the sweeping roller brush 7 to rotate and sweep the road surface, removing debris and dust. The pressure roller 5 rolls along the road surface, and the unevenness of the road surface causes the pressure roller 5 to transmit information to the multi-laser smoothness sensor 3 through the connecting rod 4. The multi-laser smoothness sensor 3 feeds back the detected road surface smoothness data to the external control equipment, allowing the staff to monitor the road surface smoothness in real time.

[0037] In a preferred embodiment, a bucket 9 is provided at one end of the frame 1 below, and a cylinder 10 is rotatably connected to the bottom of the frame 1, with the output end of the cylinder 10 rotatably connected to the top of the bucket 9.

[0038] In this embodiment: if there are large stones, garbage or other obstacles on the road, when the cylinder 10 extends, it pushes the bucket 9 to descend, so that the bucket 9 contacts the road surface. As the device moves forward, the bucket 9 scoops up and collects the obstacles, so as to avoid the obstacles affecting the normal rolling of the pressure wheel 5 and the detection results of the multi-laser flatness sensor 3.

[0039] In a preferred embodiment, stabilizer bars 11 are rotatably connected to both sides of one end of the frame 1, and the ends of the stabilizer bars 11 away from the frame 1 are rotatably connected to the top of the bucket 9.

[0040] In this embodiment, the stabilizer bar 11 plays the role of stabilizing the bucket 9. When the cylinder 10 pushes the bucket 9 to descend or ascend, the stabilizer bar 11 rotates with the movement of the bucket 9, ensuring that the bucket 9 will not shake or deviate during the movement, so that the bucket 9 can accurately complete the action of scooping up obstacles, thereby improving the stability and reliability of the device.

[0041] In a preferred embodiment, the fixed plate 2 has through slots 12 equidistantly spaced inside, and each through slot 12 is fixedly connected to a sliding rod 13. Each sliding rod 13 is slidably connected to a connecting block 14 outside, and each connecting rod 4 is fixedly connected to the corresponding connecting block 14.

[0042] In this embodiment: when the pressure roller 5 encounters uneven areas on the road surface, the pressure roller 5 will drive the connecting rod 4 to move up and down. Since the connecting rod 4 is fixedly connected to the connecting block 14, the connecting block 14 will slide on the sliding rod 13, so that the pressure roller 5 can adapt to the undulations of the road surface more flexibly, ensuring that the multi-laser flatness sensor 3 can accurately detect the flatness of the road surface.

[0043] In a preferred embodiment, a spring 15 is fitted on the outside of the sliding rod 13 and between the top of the inner wall of the through groove 12 and the top of the connecting block 14.

[0044] In this embodiment, the spring 15 plays a role in buffering and resetting during the sliding process of the connecting block 14. When the pressure wheel 5 encounters the protrusion and the connecting block 14 slides upward, the spring 15 is compressed, absorbing part of the impact force.

[0045] In a preferred embodiment, a vehicle trailer connector 16 is fixedly connected to one end of the frame 1, and two wheels 17 are fixedly connected to both sides of the bottom end of the frame 1.

[0046] In this embodiment, during actual testing, the staff connects the trailer connector 16 to the towing vehicle, which then moves the device on the road. The wheels 17 enable the device to travel smoothly on the road, ensuring its mobility and flexibility.

[0047] In a preferred embodiment, the multi-laser flatness sensor 3, the motor 8, and the cylinder 10 are all electrically connected to an external control device.

[0048] In this embodiment, staff can conveniently operate and monitor the device from an external control device. At the same time, they can receive data detected by the multi-laser smoothness sensor 3 in real time, analyze and process the data, and generate a road surface smoothness test report, providing an accurate basis for road construction and maintenance.

[0049] Working principle: In use, firstly, the device is connected to the towing vehicle through the vehicle trailer connector 16, and the walking wheels 17 support the movement of the device;

[0050] The cylinder 10 is activated, pushing the bucket 9 to descend. The stabilizer bar 11 ensures the stability of the bucket 9. The bucket 9 is used to clear larger obstacles on the road surface.

[0051] Motor 8 starts, driving the sweeping roller brush 7 to rotate and sweep the road surface to ensure the cleanliness of the detection area;

[0052] The multi-laser smoothness sensor 3 is activated to scan and detect the road surface. The connecting rod 4 is slidably connected to the sliding rod 13 through the connecting block 14. The spring 15 buffers the contact pressure between the pressure roller 5 and the road surface, ensuring stable contact between the sensor and the road surface. The pressure roller 5 moves the connecting rod 4 up and down with the undulation of the road surface. The connecting rod 4 transmits the undulation changes of the road surface to the multi-laser smoothness sensor 3. The multi-laser smoothness sensor 3 transmits the detection data to the external control device.

[0053] The entire device achieves road surface sweeping, cleaning, and smoothness detection through the coordinated operation of motor 8, cylinder 10, and multiple laser smoothness sensors 3. The buffering effect of connecting rod 4 and spring 15 ensures the accuracy and stability of the detection. It is suitable for smoothness detection after asphalt pavement construction, improving detection efficiency and accuracy.

[0054] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An asphalt pavement smoothness testing device, comprising a frame (1), characterized in that, A fixing plate (2) is fixedly connected inside the frame (1). A multi-laser flatness sensor (3) is fixedly connected to one side of the fixing plate (2). A connecting rod (4) is equidistantly arranged on one side of the fixing plate (2) and below the multi-laser flatness sensor (3). The top of the connecting rod (4) is in contact with the output end of the multi-laser flatness sensor (3). A pressure wheel (5) is fixedly connected to the bottom of the connecting rod (4). A connecting frame (6) is symmetrically fixedly connected to both sides of the bottom of the frame (1). A cleaning roller brush (7) is rotatably connected inside the connecting frame (6). A motor (8) is fixedly connected to one side of the connecting frame (6). The output shaft of the motor (8) extends into the corresponding connecting frame (6) and is fixedly connected to one end of the cleaning roller brush (7).

2. The asphalt pavement smoothness testing device according to claim 1, characterized in that, A bucket (9) is provided at one end of the frame (1) below the frame (1), and a cylinder (10) is rotatably connected to the bottom of the frame (1). The output end of the cylinder (10) is rotatably connected to the top of the bucket (9).

3. The asphalt pavement smoothness testing device according to claim 2, characterized in that, Stabilizer bars (11) are rotatably connected to both sides of one end of the frame (1), and the end of the stabilizer bar (11) away from the frame (1) is rotatably connected to the top of the bucket (9).

4. The asphalt pavement smoothness testing device according to claim 1, characterized in that, The fixed plate (2) has through slots (12) equidistantly spaced inside. Each through slot (12) is fixedly connected to a sliding rod (13). Each sliding rod (13) is slidably connected to a connecting block (14). Each connecting rod (4) is fixedly connected to the corresponding connecting block (14).

5. The asphalt pavement smoothness testing device according to claim 4, characterized in that, A spring (15) is fitted on the outside of the sliding rod (13) and between the top of the inner wall of the through groove (12) and the top of the connecting block (14).

6. The asphalt pavement smoothness testing device according to claim 1, characterized in that, One end of the vehicle frame (1) is fixedly connected to a vehicle trailer connector (16), and both sides of the bottom end of the vehicle frame (1) are fixedly connected to driving wheels (17).

7. The asphalt pavement smoothness testing device according to claim 3, characterized in that, The multi-laser flatness sensor (3), motor (8) and cylinder (10) are all electrically connected to external control equipment.

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