Ground penetrating radar vehicle towed support

Abstract

The utility model provides a kind of ground penetrating radar vehicle trailer support, including the connecting device for being fixed rigid connection with tractor, the suspension device for suspending radar antenna, the lifting device for making suspension device move up and down, connecting device is slidably connected with suspension device, lifting device is fixed on the suspension device, by making radar support and car rigid connection, make car weight press down radar support, prevent radar jump up when vehicle passes through road uneven area and influence radar collection accuracy. When detecting task is scattered distribution, can be lifted radar antenna by motor, improve vehicle driving speed, increase work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of road construction and testing equipment, specifically a ground-penetrating radar vehicle trailer support. Background Technology

[0002] Urban roads are prone to cavities and subsidence due to long-term soil erosion and aging underground pipelines. According to relevant data, among the more than 250,000 geological disaster sites nationwide, 1.3 are subsidence-related disaster sites. Aging, rupture, and leakage of underground pipelines are common in urban roads, and these factors combined lead to the formation of underground road defects. Traditional manual inspections are inefficient and struggle to detect deep-seated defects. In recent years, ground-penetrating radar (GPR), a non-invasive and non-destructive detection technology that uses high-frequency electromagnetic waves to probe underground structures, has been widely used in geological exploration, road and bridge quality inspection, and many other fields due to its advantages such as high detection accuracy, strong penetration, and mature technology. However, current applications of GPR still face the following problems: 1. Low efficiency: slow speed, slow manual pushing speed, and slow support speed of spherical hook towing bracket.

[0003] 2. Poor validity of test data: Cannot be effectively tested under bumpy conditions.

[0004] 3. Poor adaptability: One type of antenna is only compatible with one type of bracket. Utility Model Content

[0005] The main problem this invention addresses is how to adapt to various antennas and perform rapid and effective detection, providing a ground-penetrating radar car trailer support.

[0006] To solve the above technical problems, the technical solution adopted is: A ground-penetrating radar vehicle trailer includes a connecting device for rigidly connecting to a tractor, a suspension device for suspending a radar antenna, and a lifting device for moving the suspension device up and down. The connecting device is slidably connected to the suspension device, and the lifting device is fixed to the suspension device.

[0007] Furthermore, the suspension device includes two parallel suspension frames, each suspension frame including a vertical rod and a horizontal rod vertically connected to one side of the vertical rod. Bearings are respectively installed at the ends of the horizontal rods of the two suspension frames, and a circular steel pipe passes through the two bearings. At both ends of the circular steel pipe, there are mounting plates perpendicular to the steel pipe for fixing the radar antenna. The mounting plate is a plate-shaped steel plate, and the upper end of the mounting plate is fixed to the circular steel pipe. Multiple rows of through holes are opened on the mounting plate for fixing to the radar antenna. Each of the two suspension brackets has a parallel sliding rod on its vertical rod. The connecting device is slidably connected to the sliding rod, and a crossbeam is horizontally connected to the bottom of the two sliding rods for fixing the two suspension brackets.

[0008] Furthermore, the connecting device includes two L-shaped connecting arms. The lateral ends of the connecting arms are connected to the trailer square holes of the rear guard bar of the tractor vehicle. A slide rail is installed laterally above the vertical ends of the connecting arms. A slide rod on the suspension frame passes through the slide rail so that the slide rod can slide longitudinally within the slide rail.

[0009] Furthermore, the lifting device includes a remote control motor, two pulleys, and a steel wire rope. The two pulleys are evenly installed on the bottom crossbeam connecting the two slide rods. One end of the steel wire rope is fixed and wound around the motor output shaft, and the other end passes through multiple pulleys arranged on the bottom crossbeam connecting the two slide rods and is then fixed. The motor is fixed on the middle crossbeam above the vertical ends of the two L-shaped connecting arms, so that the motor output shaft is positioned above the bottom crossbeam connecting the two slide rods.

[0010] Furthermore, the two ends of the circular steel pipe pass through holes in the U-shaped frame between the two parallel arms. Driven wheels are installed at the four corners of the U-shaped frame to provide support for the suspension frame when it descends. The circular steel pipe can rotate freely after passing through the two parallel arms of the U-shaped frame.

[0011] Furthermore, multiple lifting plates are fixed to the circular steel pipe, and radar antennas of different lengths can be installed by combining two lifting plates at different positions.

[0012] Furthermore, the lifting plates located at both ends of the circular steel pipe are respectively sleeved onto the circular steel pipe by a circular sleeve. One end of the circular sleeve is a vertically fixed lifting plate, and the other end of the circular sleeve has a through hole, which cooperates with the pin holes at both ends of the steel pipe for fixing with pins.

[0013] Furthermore, the lifting plate located in the middle of the circular steel pipe has a hole at its upper end that matches the outer diameter of the circular steel pipe so that the lifting plate can pass through the circular steel pipe. A right-angle fixing plate is also installed at the upper end of the lifting plate. One side of the right-angle fixing plate is fixedly connected to the lifting plate, and the other side of the right-angle fixing plate has a through hole. A lock nut is used to lock it onto the circular steel pipe.

[0014] Furthermore, a shock-absorbing device is installed between the upper vertical end and the lateral end of the two suspension brackets.

[0015] Furthermore, a vertically downward hook is installed on the middle crossbeam above the vertical ends of the two L-shaped connecting arms. A corresponding notch is provided on the bottom crossbeam connecting the two sliding rods. When the radar antenna is not working and the driven wheel is suspended off the ground, the hook hooks onto the notch.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects: This utility model provides a ground-penetrating radar (GPR) vehicle trailer mount. The radar mount is rigidly connected to the vehicle, and the vehicle's weight presses down on the radar mount, preventing the radar from jumping up and affecting its acquisition accuracy when the vehicle travels over uneven road surfaces. When detection tasks are scattered, a motor can be used to raise the radar antenna, increasing vehicle speed and work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main view of the towing bracket. Figure 2 This is a schematic diagram showing the rear view of the trailer support. Figure 3 This is a schematic diagram showing the connection between the connecting device and the tractor. Figure 4 This is a schematic diagram showing the connection between the lifting plate inserted through the middle of the circular steel pipe and the steel pipe. Figure 5 This is a schematic diagram of a lifting hook.

[0018] Legend: 1. Antenna; 2. Connecting device; 21. L-shaped connecting arm; 22. Slide rail; 3. Suspension device; 31. Suspension frame; 32. Bearing; 33. Circular steel pipe; 331. Sleeve; 332. Through hole; 34. Lifting plate; 341. Right-angle fixing piece; 35. Multiple rows of through holes; 36. Slide rod; 37. Crossbeam; 4. Lifting device; 41. Remote control motor; 42. Pulley; 43. Steel wire rope; 5. U-shaped frame; 51. Parallel arm; 52. Driven wheel; 6. Shock absorption device; 7. Hook; 71. Buttonhole. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Figures 1 to 5This illustration shows a specific embodiment of a ground-penetrating radar vehicle trailer support according to the present invention. It includes a radar antenna 1, a connecting device 2 for rigidly connecting to a tractor, a suspension device 3 for suspending the radar antenna 1, and a lifting device 4 for moving the suspension device up and down. The connecting device 2 is slidably connected to the suspension device 3, and the lifting device 4 is fixedly connected to the suspension device 3. Through the suspension device, the tractor can tow the radar antenna for non-destructive road surface detection, offering strong endurance, high load-bearing capacity, and excellent passability, making it suitable for large-scale road surface detection.

[0021] In this embodiment, the suspension device 3 includes two parallel suspension frames 31. Each suspension frame 31 includes a vertical rod and a horizontal rod vertically connected to one side of the vertical rod. Bearings 32 are respectively installed at the ends of the horizontal rods of the two suspension frames 31. A circular steel pipe 33 passes through the two bearings 32. At both ends of the circular steel pipe 33, there are mounting plates 34 perpendicular to the circular steel pipe 33 for fixing the radar antenna. The mounting plate 34 is a plate-shaped steel plate. The upper end of the mounting plate 34 is fixed to the circular steel pipe. Multiple rows of through holes 35 are opened on the mounting plate for fixing to the radar antenna. A sliding rod 36 is also arranged parallel to each of the vertical rods of the two suspension frames 31. The connecting device 2 is slidably connected to the sliding rod 36. A crossbeam 37 is horizontally connected to the bottom end of the two sliding rods for fixing the two suspension frames. By passing a circular steel pipe through a bearing, the pipe and bearing are tightly fitted together, allowing the circular steel pipe 33 to rotate freely under the bearing's influence. When the road surface is uneven, the pipe's rotation provides a certain degree of pitch freedom, ensuring that the radar antenna suspended below the circular steel pipe remains parallel to the ground, guaranteeing that the radar antenna 1 is horizontal and improving the accuracy of road surface detection. The multiple rows of through holes on the mounting plate 34 can be connected according to the different thicknesses of the radar antennas, accommodating the needs of different radar antenna models.

[0022] In this embodiment, as Figure 3 As shown, the connecting device 2 includes two L-shaped connecting arms 21. The lateral ends of the connecting arms 21 are connected to the trailer square holes in the rear guardrail of the tractor vehicle. A slide rail 22 is laterally mounted on the vertical end of each connecting arm 21. A slide rod 36 on the suspension frame 31 passes through the slide rail 22, allowing the slide rod 36 to slide longitudinally within the slide rail 22. By connecting the connecting arms to the trailer square holes and fixing them in place, the radar towing bracket is rigidly connected to the tractor vehicle. Compared to the existing technology using a spherical trailer hook, this prevents the towing bracket from swaying left and right. Furthermore, the rigid connection allows part of the tractor vehicle's weight to press down on the radar towing bracket, increasing its weight. During high-speed radar detection tasks, this ensures the towing bracket remains firmly in contact with the ground, preventing bracket movement caused by uneven road surfaces. It also prevents the radar antenna from jumping up when the vehicle passes over uneven road surfaces, thus affecting radar acquisition accuracy.

[0023] In this embodiment, the lifting device 4 includes a remote-controlled motor 41, two pulleys 42, and a steel wire rope 43. The two pulleys 42 are evenly installed on the bottom crossbeam 37 connecting the two sliding rods. One end of the steel wire rope is fixed and wound around the motor output shaft, and the other end passes through multiple pulleys arranged on the bottom crossbeam connecting the two sliding rods and is then fixed. The motor is fixed on the middle crossbeam above the vertical ends of the two L-shaped connecting arms, so that the motor output shaft is positioned above the bottom crossbeam connecting the two sliding rods. By using the remote-controlled motor, when no testing is required, the motor can be rotated remotely, the steel wire rope is wound around the motor output shaft, and the bottom crossbeam connecting the two sliding rods is driven, thereby causing the sliding rods to move upward under the action of the slide rails, driving the driven wheel away from the ground and increasing the vehicle's speed. When testing is required, the steel wire rope wound around the pulley on the motor output shaft is released via the remote-controlled motor, and the suspension frame descends under the action of gravity, causing the driven wheel to contact the ground and move with the tractor.

[0024] In this embodiment, the two ends of the circular steel pipe 33 pass through holes in the U-shaped frame 5 between the two parallel arms 51. Driven wheels 52 are installed at the four corners of the U-shaped frame 5, providing support for the suspension frame 31 when it descends. The circular steel pipe 33 can rotate freely after passing through the two parallel arms of the U-shaped frame. In this embodiment, the U-shaped frame is fixed by the circular steel pipe and supported by the driven wheels at the four corners.

[0025] In this embodiment, multiple lifting plates 34 are fixed to the circular steel pipe 33. Radar antennas 1 of different lengths can be installed by combining two lifting plates 34 at different positions. By combining two lifting plates at different positions, radar antennas of different lengths can be connected, thereby adapting to different types of radar antennas.

[0026] In this embodiment, the lifting plates 34 located at both ends of the circular steel pipe 33 are respectively connected to the circular steel pipe 33 via a circular sleeve 331. One end of the circular sleeve 331 is a vertically installed lifting plate 34, and the other end of the circular sleeve 331 has a through hole 332, which cooperates with the pin holes at both ends of the steel pipe for fixing with pins. Figure 2 As shown, for better installation and use, the lifting plate 34 is not integrally formed with the circular steel pipe 33. Instead, after the circular steel pipe passes through the parallel arm of the U-shaped frame, it is fixed by a sleeve with the lifting plate 34 or by inserting it into the circular steel pipe and fixing it through the pin hole. When no inspection is required, it can also be removed for easy carrying and storage.

[0027] In this embodiment, the lifting plate 34 located in the middle of the circular steel pipe 33 has a hole at its upper end that matches the outer diameter of the circular steel pipe 33, allowing the lifting plate 34 to pass through the circular steel pipe. Figure 4 As shown, a right-angle fixing plate 341 is also installed on the upper end of the lifting plate 34. One side of the right-angle fixing plate 341 is fixedly connected to the lifting plate, and the other side of the right-angle fixing plate has a through hole 342, which is locked to the circular steel pipe using a lock nut. For the lifting plate arranged in the middle of the circular steel pipe, for ease of use, a right-angle fixing plate 341 is also installed on the upper end of the lifting plate 34. One side is fixed to the lifting plate, and the other side can be fastened to the steel pipe by a lock nut. Since the lifting plate has a hole at its upper end that passes through the circular steel pipe, it can be better fixed by the right-angle fixing plate. When the lifting plate is not in use, it can be rotated at an angle to avoid affecting the installation of the radar antenna. By combining the two lifting plates, the radar antenna can be moved left and right, thereby increasing the coverage area of ​​the radar antenna. In the full lane coverage detection task, there is no need for vehicles to drive over the line, which improves driving safety.

[0028] In this embodiment, a shock-absorbing device 6 is installed between the upper vertical end and the lateral end of the two suspension brackets 31. For example... Figure 1 , 2 As shown, the shock absorption device includes two diagonally supported hydraulic springs, with an internal hydraulic rod and an external spring. The tow trailer is rigidly connected, and the vehicle weight presses down on the radar bracket. Combined with the shock absorption device, this better prevents the radar from bouncing up and affecting its acquisition accuracy when the vehicle passes over uneven road surfaces.

[0029] In this embodiment, as Figure 5 As shown, a vertically downward hook 7 is installed on the middle crossbeam above the vertical ends of the two L-shaped connecting arms. A corresponding eyelet 71 is provided on the bottom crossbeam connecting the two sliding rods. When the radar antenna is not in operation and the driven wheel is suspended above the ground, the hook engages with the eyelet. This prevents the wire rope from being under constant stress and increases safety.

[0030] Of course, you can also Figure 1 The tow trailer is equipped with a turn signal synchronization device at the rear, which can synchronize the turn signals of the towing vehicle and increase driving safety.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ground-penetrating radar vehicle trailer support, characterized in that, It includes a connecting device for rigidly connecting to a tractor, a suspension device for suspending a radar antenna, and a lifting device for moving the suspension device up and down. The connecting device is slidably connected to the suspension device, and the lifting device is fixed to the suspension device. The suspension device includes two parallel suspension frames, each including a vertical rod and a horizontal rod vertically connected to one side of the vertical rod. Bearings are installed at the ends of the horizontal rods of the two suspension frames, and a circular steel pipe passes through the two bearings. At both ends of the circular steel pipe, there are mounting plates perpendicular to the steel pipe for fixing the radar antenna. The mounting plates are plate-shaped steel plates, and the upper end of the mounting plates is fixed to the circular steel pipe. Multiple rows of through holes are opened on the mounting plates for fixing to the radar antenna. Each of the two suspension brackets has a parallel sliding rod on its vertical rod. The connecting device is slidably connected to the sliding rod. A crossbeam is horizontally connected to the bottom of the two sliding rods for fixing the two suspension brackets. The connecting device includes two L-shaped connecting arms. The lateral ends of the connecting arms are connected to the trailer square holes of the rear guard bar of the tractor. A slide rail is installed horizontally above the vertical ends of the connecting arms. A slide rod on the suspension frame passes through the slide rail so that the slide rod can slide longitudinally within the slide rail. The lifting device includes a remote-controlled motor, two pulleys, and a steel wire rope. The two pulleys are evenly installed on the bottom crossbeam connecting the two sliding rods. One end of the steel wire rope is fixed and wound around the motor output shaft, and the other end passes through multiple pulleys arranged on the bottom crossbeam connecting the two sliding rods and is then fixed. The motor is fixed on the middle crossbeam above the vertical ends of the two L-shaped connecting arms, so that the motor output shaft is positioned above the bottom crossbeam connecting the two sliding rods.

2. The ground-penetrating radar vehicle trailer support according to claim 1, characterized in that, The two ends of the circular steel pipe pass through holes in the U-shaped frame between two parallel arms. Driven wheels are installed at the four corners of the U-shaped frame to provide support for the suspension frame when it descends. The circular steel pipe can rotate freely after passing through the two parallel arms of the U-shaped frame.

3. A ground-penetrating radar vehicle trailer support according to claim 2, characterized in that, Multiple lifting plates are fixed to the circular steel pipe. Radar antennas of different lengths can be installed by combining two lifting plates at different positions.

4. A ground-penetrating radar vehicle trailer support according to claim 3, characterized in that, The lifting plates located at both ends of the circular steel pipe are respectively connected to the circular steel pipe by a circular sleeve. One end of the circular sleeve is the lifting plate that is vertically fixed, and the other end of the circular sleeve has a through hole that matches the pin holes at both ends of the steel pipe for fixing with pins.

5. A ground-penetrating radar vehicle trailer support according to claim 4, characterized in that, The lifting plate located in the middle of the circular steel pipe has a hole at its upper end that matches the outer diameter of the circular steel pipe so that the lifting plate can pass through the circular steel pipe. A right-angle fixing plate is also installed at the upper end of the lifting plate. One side of the right-angle fixing plate is fixedly connected to the lifting plate, and the other side of the right-angle fixing plate has a through hole. A lock nut is used to lock it onto the circular steel pipe.

6. A ground-penetrating radar vehicle trailer support according to claim 5, characterized in that, A shock-absorbing device is installed between the upper vertical end and the lateral end of the two suspension brackets.

7. A ground-penetrating radar vehicle trailer support according to claim 6, characterized in that, A vertically downward hook is installed on the middle crossbeam above the vertical ends of the two L-shaped connecting arms. A corresponding notch is provided on the bottom crossbeam connecting the two sliding rods. When the radar antenna is not working and the driven wheel is suspended off the ground, the hook hooks onto the notch.

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