An adjustable road hole detection device

Abstract

The utility model relates to road detection technical field discloses an adjustable road cavity detection device, including in the mobile car body, the car body both sides are equipped with folding assembly together, the car body lower extreme fixedly connected with the bottom ground penetrating radar, the folding assembly lower extreme is equipped with two side ground penetrating radar, one side of car body is equipped with the limiting component for supporting folding assembly. The utility model through the folding assembly and the limiting component's synergies, has realized the flexible adjustment of device detection width, when the road is wider, the folding assembly can unfold side ground penetrating radar, and the bottom ground penetrating radar works in coordination to increase the scanning area to reduce the detection reciprocating frequency, improve the efficiency and reduce the workload, and the limiting component automatic extension support rod is stable to the unfolded part and supports, ensures the detection stability, and when the side ground penetrating radar folding is stored, the support rod contracts, keeps the compactness of device, and the device moves and stores conveniently.

Description

Technical Field

[0001] This utility model relates to the field of road inspection technology, specifically to an adjustable road cavity detection device. Background Technology

[0002] Road cavities refer to hidden cavities formed when the soil below the road surface is hollowed out due to various reasons such as groundwater erosion, pipe leakage, and soil loss. These cavities are concealed underground and are difficult to detect initially, but they significantly reduce the road's load-bearing capacity and pose a serious threat to road traffic safety. With repeated vehicle traffic, the road surface above the cavities will gradually subside and crack, eventually potentially leading to sudden collapse, causing traffic accidents, injuries, and damage to municipal facilities. Therefore, regular and efficient detection of road cavities is a crucial part of urban public safety management and preventive maintenance of infrastructure. Currently, ground-penetrating radar (GPR) is the main technical means for detecting road cavities. Its working principle is to emit electromagnetic waves into the ground and identify underground abnormal structures by analyzing the reflected echoes at different medium interfaces. In practical applications, GPR is usually mounted on a handcart or small vehicle to achieve mobile scanning on the road.

[0003] Existing detection devices typically have a radar detection range equivalent to the width of a vehicle. When detecting on wide roads, a single scan cannot cover the entire road surface, requiring operators to repeatedly scan the road multiple times. This method is not only labor-intensive and inefficient, but the splicing of multiple paths can also easily result in missed areas, affecting the accuracy of the detection results. Therefore, those skilled in the art provide an adjustable road cavity detection device to solve the problems mentioned in the background. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable road cavity detection device to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: an adjustable road cavity detection device, including a mobile vehicle body, folding components installed on both sides of the vehicle body, a bottom ground-penetrating radar fixedly connected to the lower end of the vehicle body, two side ground-penetrating radars installed at the lower end of the folding components, a limiting component for supporting the folding components installed on one side of the vehicle body, and two symmetrically arranged support frames fixedly connected to the lower end of the vehicle body.

[0006] As a preferred embodiment of the above technical solution, the folding assembly includes a mounting slot, a support plate, and a protective shell. Two mounting slots and two support plates are provided. The two mounting slots are symmetrically opened on both sides of the vehicle body. The two support plates are fixedly connected to one side of the upper end of the vehicle body. The protective shell is fixedly connected to one side of the upper end.

[0007] As a preferred embodiment of the above technical solution, a transmission rod is rotatably connected between the two support plates. Two worm gears are fixedly sleeved on the outside of the transmission rod, and the two worm gears rotate in opposite directions. Two symmetrically arranged rotating rods are rotatably sleeved on one side of the vehicle body. Connecting plates are fixedly sleeved on the outside of each of the two rotating rods. The two connecting plates are rotatably mounted in two mounting slots. The two side-penetrating ground radars are fixedly connected to the middle of the lower ends of the two connecting plates. Worm wheels are fixedly connected to the upper ends of the two rotating rods, and the two worm gears rotate in opposite directions. The two worm gears mesh with the two worm wheels respectively.

[0008] As a preferred embodiment of the above technical solution, a first bevel gear is fixedly sleeved at the middle of the outer side of the transmission rod, and a second bevel gear is rotatably connected at the middle of the inner wall of the protective shell. The first bevel gear and the second bevel gear mesh with each other. A handle is rotatably connected to one side of the protective shell, and the output end of the handle passes through the protective shell and is fixedly connected to one end of the second bevel gear.

[0009] As a preferred embodiment of the above technical solution, the limiting component includes two guide rails, two first spur gears, two second spur gears, and two pads. The two guide rails are fixedly connected to one side of the vehicle body and are symmetrically arranged. The two first spur gears are respectively fixedly connected to the lower ends of two rotating rods. The two second spur gears are rotatably connected to one side of the lower end of the vehicle body. The two first spur gears and the two second spur gears mesh with each other. The two pads are respectively fixedly connected to one side of two connecting plates.

[0010] As a preferred embodiment of the above technical solution, each of the two guide rails is slidably connected to a movable block on its upper outer side, and each of the two movable blocks is fixedly connected to a support rod on one side. The two support rods are arranged symmetrically, and each of the two support rods is fixedly connected to a rack at its lower end. The two racks mesh with two second spur gears respectively.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This device achieves flexible adjustment of the detection width through the coordinated action of the folding component and the limiting component. When the road is wide, the folding component can unfold the side-penetrating radar to work in conjunction with the bottom-penetrating radar to increase the scanning area, thereby reducing the number of detection cycles, improving efficiency and reducing workload. At the same time, the limiting component automatically extends a support rod to provide stable support for the unfolded part and ensure detection stability. When the side-penetrating radar is folded and stored, the support rod retracts to maintain the compactness of the device, making it easy to move and store. Attached Figure Description

[0012] Figure 1 A schematic diagram of the main structure of an adjustable road cavity detection device; Figure 2 This is a schematic diagram of the main structure of an adjustable road cavity detection device from another perspective. Figure 3 This is a schematic diagram of the unfolded structure of a folding component of an adjustable road cavity detection device; Figure 4 A top view of the structure of an adjustable road cavity detection device; Figure 5 A schematic diagram of the protective shell structure for an adjustable road cavity detection device; Figure 6 A folded component structure diagram of an adjustable road cavity detection device; Figure 7 A structurally exploded view of the limiting component of an adjustable road cavity detection device; Figure 8 Another perspective exploded view of the limiting component structure of an adjustable road cavity detection device.

[0013] 1. Vehicle body; 2. Folding assembly; 201. Mounting slot; 202. Support plate; 203. Protective shell; 204. Transmission rod; 205. Worm gear; 206. Rotating rod; 207. Connecting plate; 208. Worm wheel; 209. First bevel gear; 210. Second bevel gear; 211. Handle; 3. Bottom ground detection radar; 4. Side ground detection radar; 5. Limiting assembly; 501. Guide rail; 502. First spur gear; 503. Second spur gear; 504. Pad; 505. Moving block; 506. Support rod; 507. Rack; 6. Support frame. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figures 1-8 As shown, this utility model provides a technical solution: an adjustable road cavity detection device, including a mobile vehicle body 1, folding components 2 installed on both sides of the vehicle body 1, a bottom ground-penetrating radar 3 fixedly connected to the lower end of the vehicle body 1, two side ground-penetrating radars 4 installed at the lower end of the folding components 2, a limiting component 5 for supporting the folding components 2 installed on one side of the vehicle body 1, and two symmetrically arranged support frames 6 fixedly connected to the lower end of the vehicle body 1.

[0016] Furthermore, by adjusting the working positions of the two side ground-penetrating radars 4 through the folding component 2, they work in conjunction with the fixed bottom ground-penetrating radar 3 to change the detection width, thus achieving flexible adjustment of the detection width. This allows for scanning a larger area at once on wide roads, significantly improving detection efficiency. The limiting component 5 provides stable support for the folding component 2 in the unfolded state, ensuring detection stability. At the same time, after the folding component 2 is folded up, the support frame 6 can support the folded component 2, ensuring the overall stability and safety of the vehicle body 1 during operation and movement.

[0017] It should be noted that: vehicle body 1, bottom-penetrating radar 3, and side-penetrating radar 4 are all existing technologies. Vehicle body 1 is a handcart, a mobile platform integrating a battery, motor, and control system. Vehicle body 1 can power bottom-penetrating radar 3 and side-penetrating radar 4, and a positioning module and odometer can be integrated on the upper part of vehicle body 1. The control system records the location and path information during detection, thereby achieving accurate positioning and marking of the detected road section. Moreover, bottom-penetrating radar 3 and side-penetrating radar 4 emit high-frequency electromagnetic waves into the ground and receive reflected echoes from different underground media interfaces. The underground structure is detected by analyzing the echo time and intensity, which will not be elaborated here.

[0018] As one implementation method in this embodiment, please refer to Figures 1-6 As shown, the folding assembly 2 includes a mounting slot 201, a support plate 202, and a protective shell 203. There are two mounting slots 201 and two support plates 202. The two mounting slots 201 are symmetrically opened on both sides of the vehicle body 1. The two support plates 202 are fixedly connected to one side of the upper end of the vehicle body 1. The protective shell 203 is fixedly connected to one side of the upper end. A transmission rod 204 is rotatably connected between two support plates 202. Two worm gears 205 are fixedly sleeved on the outside of the transmission rod 204. The two worm gears 205 rotate in opposite directions. Two symmetrically arranged rotating rods 206 are rotatably sleeved on one side of the vehicle body 1. A connecting plate 207 is fixedly sleeved on the outside of each of the two rotating rods 206. The two connecting plates 207 are rotatably set in two mounting slots 201 respectively. Two side ground-penetrating radars 4 are fixedly connected to the middle of the lower end of the two connecting plates 207 respectively. Worm wheels 208 are fixedly connected to the upper end of each of the two rotating rods 206. The two worm wheels 208 rotate in opposite directions. The two worm gears 205 mesh with the two worm wheels 208 respectively.

[0019] Furthermore, by rotating the transmission rod 204, a pair of worm gears 205 with opposite directions of rotation are driven to rotate, which in turn drives the meshing worm wheel 208 with the same opposite direction of rotation to rotate synchronously in the opposite direction. This allows the two rotating rods 206 to drive the connecting plate 207 and the side-penetrating radar 4 to achieve symmetrical unfolding or folding movements within the mounting slot 201. The transmission of the worm wheel 208 and worm gear 205 ensures the synchronicity and self-locking of the movements, making the side-penetrating radar 4 stably positioned. At the same time, the entire mechanism is compact and achieves reliable and stable adjustment of the detection width.

[0020] As one implementation method in this embodiment, please refer to Figure 6 As shown, a first bevel gear 209 is fixedly sleeved at the middle of the outer side of the transmission rod 204, and a second bevel gear 210 is rotatably connected at the middle of the inner wall of the protective shell 203. The first bevel gear 209 and the second bevel gear 210 mesh with each other. A handle 211 is rotatably connected to one side of the protective shell 203. The output end of the handle 211 passes through the protective shell 203, and the output end of the handle 211 is fixedly connected to one end of the second bevel gear 210.

[0021] Furthermore, the operator rotates the handle 211 to drive the second bevel gear 210 to rotate. The meshing of the second bevel gear 210 with the first bevel gear 209 changes the direction of power and transmits it to the transmission rod 204, realizing a flexible conversion of the power transmission direction. This allows the operating position to be set on the side of the vehicle body 1, making it convenient for the user to apply force. At the same time, the protective shell 203 provides shielding protection for the second bevel gear 210 and the first bevel gear 209, ensuring the stability and safety of the transmission process.

[0022] As one implementation method in this embodiment, please refer to Figure 4 , Figure 7 and Figure 8 As shown, the limiting component 5 includes two guide rails 501, two first spur gears 502, two second spur gears 503, and two pads 504. The two guide rails 501 are fixedly connected to one side of the vehicle body 1 and are arranged symmetrically. The two first spur gears 502 are respectively fixedly connected to the lower ends of the two rotating rods 206. The two second spur gears 503 are rotatably connected to one side of the lower end of the vehicle body 1. The two first spur gears 502 and the two second spur gears 503 mesh with each other. The two pads 504 are respectively fixedly connected to one side of the two connecting plates 207. Both guide rails 501 are slidably connected to the upper outer side of each of the two guide rails 501. Each of the two guide rails 505 is fixedly connected to one side of each of the two guide rails 506. The two support rods 506 are arranged symmetrically. Each of the two support rods 506 is fixedly connected to the lower end of each of the two support rods 506. The two racks 507 mesh with the two second spur gears 503 respectively.

[0023] Furthermore, when the rotating rod 206 of the folding assembly 2 rotates, the rotating rod 206 drives the first spur gear 502 at the lower end to rotate synchronously, driving the second spur gear 503 meshing with it to rotate, which in turn drives the rack 507 meshing with the second spur gear 503 to move linearly. Finally, the two support rods 506 that fix the rack 507 extend or retract synchronously along the guide rail 501. When the side-penetrating radar 4 is unfolded, the support rods 506 automatically extend and form effective support for the pad 504, which greatly enhances the structural stability and vibration resistance during detection. When folded, they automatically retract, avoiding the extra length from affecting the movement of the equipment, thus achieving a balance between stability and portability.

[0024] Working principle: The user rotates the handle 211, causing the second bevel gear 210 to rotate. The second bevel gear 210 meshes with the first bevel gear 209, thereby driving the transmission rod 204 to rotate. The two worm gears 205 on the transmission rod 204 with opposite directions of rotation rotate accordingly. The two worm gears 205 drive the meshing worm wheels 208 with opposite directions of rotation to rotate. The worm wheels 208 drive the rotating rod 206 to rotate on the vehicle body 1, ultimately causing the connecting plate 207 fixed on the rotating rod 206 to unfold outward. The side ground detection radar 4 installed at the lower end of the connecting plate 207 can then be unfolded. Furthermore, the self-locking characteristics of the worm wheels 208 and worm gears 205 prevent the connecting plate 207 from swinging due to external force during detection. The unfolded side ground detection radar 4, along with the bottom ground detection radar... 3. Collaborative operation increases the scanning area, thereby reducing the number of detection cycles, improving efficiency and reducing workload. When the rotating rod 206 rotates, the first spur gear 502 at its lower end rotates synchronously and drives the second spur gear 503 meshing with it to rotate. The second spur gear 503 then drives the rack 507 meshing with it to move linearly. The rack 507 is fixed on the support rod 506, and the support rod 506 is slidably connected to the guide rail 501 through the moving block 505. Therefore, when the side-penetrating ground radar 4 is deployed, the two support rods 506 extend away from each other and move to the middle of the lower end of the two pads 504. The two support rods 506 can then provide stable support for the deployed connecting plate 207, ensuring detection stability. When the device is finished using it, the user reverses the handle 211, which allows the two unfolded connecting plates 207 to be stored in the two mounting slots 201. At the same time, the two support rods 506 retract close to each other, thereby maintaining the compactness of the device and facilitating its movement and storage.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An adjustable road cavity detection device, comprising a vehicle body (1) for movement, characterized in that: Folding components (2) are installed on both sides of the vehicle body (1). A bottom-penetrating radar (3) is fixedly connected to the lower end of the vehicle body (1). Two side-penetrating radars (4) are installed at the lower end of the folding components (2). A limiting component (5) for supporting the folding components (2) is installed on one side of the vehicle body (1). Two symmetrically arranged support frames (6) are fixedly connected to the lower end of the vehicle body (1).

2. The adjustable road cavity detection device according to claim 1, characterized in that: The folding assembly (2) includes a mounting slot (201), a support plate (202), and a protective shell (203). There are two mounting slots (201) and two support plates (202). The two mounting slots (201) are symmetrically opened on both sides of the vehicle body (1). The two support plates (202) are fixedly connected to one side of the upper end of the vehicle body (1). The protective shell (203) is fixedly connected to one side of the upper end.

3. The adjustable road cavity detection device according to claim 2, characterized in that: A transmission rod (204) is rotatably connected between the two support plates (202). Two worm gears (205) are fixedly sleeved on the outside of the transmission rod (204). The two worm gears (205) rotate in opposite directions. Two symmetrically arranged rotating rods (206) are rotatably sleeved on one side of the vehicle body (1). A connecting plate (207) is fixedly sleeved on the outside of each of the two rotating rods (206). The two connecting plates (207) are rotatably arranged in two mounting slots (201). The two side-penetrating radars (4) are fixedly connected to the middle of the lower end of the two connecting plates (207). A worm wheel (208) is fixedly connected to the upper end of each of the two rotating rods (206). The two worm wheels (208) rotate in opposite directions. The two worm gears (205) mesh with the two worm wheels (208) respectively.

4. The adjustable road cavity detection device according to claim 3, characterized in that: A first bevel gear (209) is fixedly sleeved at the middle of the outer side of the transmission rod (204), and a second bevel gear (210) is rotatably connected at the middle of the inner wall of the protective shell (203). The first bevel gear (209) and the second bevel gear (210) mesh with each other. A handle (211) is rotatably connected to one side of the protective shell (203). The output end of the handle (211) passes through the protective shell (203), and the output end of the handle (211) is fixedly connected to one end of the second bevel gear (210).

5. The adjustable road cavity detection device according to claim 3, characterized in that: The limiting component (5) includes two guide rails (501), two first spur gears (502), two second spur gears (503), and two pads (504). The two guide rails (501) are fixedly connected to one side of the vehicle body (1) and are arranged symmetrically. The two first spur gears (502) are fixedly connected to the lower ends of the two rotating rods (206), and the two second spur gears (503) are rotatably connected to one side of the lower end of the vehicle body (1). The two first spur gears (502) mesh with the two second spur gears (503), and the two pads (504) are fixedly connected to one side of the two connecting plates (207).

6. The adjustable road cavity detection device according to claim 5, characterized in that: The upper ends of the two guide rails (501) are slidably connected to moving blocks (505), and the two moving blocks (505) are fixedly connected to one side of a support rod (506). The two support rods (506) are symmetrically arranged, and the lower ends of the two support rods (506) are fixedly connected to racks (507). The two racks (507) mesh with the two second spur gears (503) respectively.

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