Bridge disease detection device
By using transmission components and a motor-driven transmission rod system, the problem of inconvenient disassembly of ground-penetrating radar has been solved, enabling convenient installation and disassembly and improving the maintenance efficiency of bridge defect detection devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI MUNICIPAL HIGHWAY ENG TESTING CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-12
AI Technical Summary
The disassembly of ground-penetrating radar in existing bridge defect detection devices is inconvenient, especially since the bolts are prone to rusting and jamming due to long-term exposure to the outdoor environment, making disassembly difficult and increasing the workload.
The system employs a transmission assembly, including a transmission disc, transmission rod, fastening clamp, and motor. The motor drives the transmission disc to move the transmission rod and fastening clamp, enabling convenient installation and disassembly of the ground-penetrating radar. The irregular circular transmission disc and inclined groove structure ensure stability and positioning.
It enables convenient installation and disassembly of ground-penetrating radar, reduces additional workload, and improves the maintenance efficiency of the device.
Smart Images

Figure CN224231971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge maintenance technology, specifically to a bridge defect detection device. Background Technology
[0002] With rapid economic development and urbanization, the number of bridges has surged, making them the core of transportation networks. Modern bridges have complex and sophisticated structures, and special components such as cross-sea bridges and cable-stayed bridges are difficult to inspect using conventional methods. Furthermore, varying climates across different regions present environmental challenges such as rain, freeze-thaw cycles, and cracking. Against this backdrop, bridge defect detection devices have emerged to ensure smooth traffic flow.
[0003] Existing ground-penetrating radar (GPR) detection devices are typically fixed directly to the device using bolts. To ensure the radar's stable operation on bridges, numerous bolts and welding methods are used during installation to firmly bind it to the bridge structure. However, when maintenance, upgrades, or troubleshooting are required, the bolts, exposed to the outdoor environment for extended periods, are susceptible to rust and jamming due to wind, rain, and dust. Workers often struggle to loosen them using conventional tools, and forced disassembly may even break the bolts. The remaining bolts within the structure require further cleaning, significantly increasing the workload. Utility Model Content
[0004] The purpose of this invention is to provide a bridge defect detection device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mounting frame;
[0006] A transmission assembly is placed within a mounting frame. The transmission assembly includes a transmission disc rotatably connected within the mounting frame, a first transmission rod slidably connected to the transmission disc, a sliding frame fixedly connected to the first transmission rod, a transmission shaft fixedly connected to the sliding frame, a transmission block slidably connected to the transmission shaft, and two fastening clamps fixedly connected to the transmission block. A spring is fixedly connected between the two fastening clamps, and a mounting chamber is rotatably connected to the two fastening clamps. A fixed frame is slidably connected to the mounting chamber.
[0007] A fourth transmission rod is slidably connected to the fixed frame, a third transmission rod is fixedly connected to the fourth transmission rod, a second transmission rod is fixedly connected to the third transmission rod, and the second transmission rod is slidably connected to the transmission disc.
[0008] Furthermore, the transmission disc is provided with a sliding groove, a first sliding shaft is fixedly connected to the first transmission rod, the first sliding shaft is slidably connected to the transmission disc, the fastening clamp is rotatably connected to the mounting chamber through a second rotating shaft, a second sliding shaft is fixedly connected to the second transmission rod, and the second sliding shaft is slidably connected to the transmission disc.
[0009] The above technical solution is adopted as follows: by setting the first transmission rod to be slidably connected to the sliding groove on the transmission disk through the first sliding shaft, the first transmission rod can be limited during use; the second sliding shaft on the second transmission rod is slidably connected to the sliding groove on the transmission disk, thus limiting the second transmission rod.
[0010] Furthermore, a first rotating shaft is fixedly connected to the transmission disc.
[0011] The above technical solution is adopted: by fixing a first rotating shaft to the transmission disk, a motor is fixed on the first rotating shaft during use, and the end of the motor away from the first rotating shaft is fixed in the mounting frame, so that the first rotating shaft can be controlled by the motor.
[0012] Furthermore, the fixed frame is provided with an inclined groove, and the fourth transmission rod is slidably connected in the inclined groove on the fixed frame.
[0013] The above technical solution is adopted: by opening an inclined groove on the fixed frame, when the fourth transmission rod slides on the fixed frame, the fixed frame will be displaced under the limiting action of the inclined groove.
[0014] Furthermore, a damper is fixedly connected to the bottom of the third transmission rod, and the side of the damper at the bottom of the third transmission rod away from the third transmission rod is fixedly connected to the bottom of the inner wall of the mounting frame.
[0015] The above technical solution is adopted: by fixing a damper at the bottom of the third transmission rod, it is easy to fix the third transmission rod during use.
[0016] Furthermore, the mounting chamber has an opening, and the first transmission rod is slidably connected to the opening on the mounting frame.
[0017] The above technical solution is adopted: by opening a hole in the installation chamber, the first transmission rod can slide in it during use, thus avoiding obstructing the displacement of the first transmission rod.
[0018] Furthermore, the transmission block has an oblique hole, and the transmission shaft is slidably connected in the oblique hole on the transmission block.
[0019] The above technical solution is adopted: by opening oblique holes on the transmission block, the transmission shaft can slide in them during use, and the transmission block will be driven when the transmission shaft slides.
[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0021] In this invention, a motor is installed inside the mounting frame, with its output end fixed to the first rotating shaft. When installing the ground-penetrating radar, the motor is started, causing the first rotating shaft to rotate the transmission disc. The transmission disc pushes the first transmission rod to move closer to the fixed frame, which in turn moves the sliding frame, causing the transmission shaft to slide on the transmission block. The transmission block presses down, causing the fastening clamps to slide down. The two fastening clamps clamp the ground-penetrating radar inward. Simultaneously, because the transmission disc is irregularly circular, when the first transmission rod slides closer to the mounting compartment, it causes the second transmission rod to slide down, which in turn causes the third transmission rod to slide down, allowing the fourth transmission rod to slide within the inclined groove of the fixed frame. Guided by the inclined groove, the fixed frame slides closer to the mounting compartment, compressing the ground-penetrating radar and fitting it into the mounting compartment, thus completing the installation and solving the problem of inconvenient disassembly in the prior art. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of a bridge defect detection device.
[0023] Figure 2 This is a schematic diagram showing the position of the first transmission rod in a bridge defect detection device.
[0024] Figure 3 A schematic diagram of the cross-sectional structure of the bridge defect detection device installation frame.
[0025] Figure 4 This is a schematic diagram showing the location of the fixing frame for the bridge defect detection device.
[0026] Figure 5 This is a schematic diagram showing the position of the fourth transmission rod in a bridge defect detection device.
[0027] Figure 6 This is a schematic diagram showing the disassembled state of the fixing frame and installation compartment of the bridge defect detection device.
[0028] Figure 7 This is a schematic diagram showing the position of the drive shaft of a bridge defect detection device.
[0029] Numbering on the map:
[0030] 1. Mounting frame;
[0031] 2. Transmission assembly; 21. Transmission disc; 22. First transmission rod; 23. First sliding shaft; 24. First rotating shaft; 25. Second transmission rod; 26. Second sliding shaft; 27. Third transmission rod; 28. Fourth transmission rod; 29. Fixed frame; 210. Mounting chamber; 211. Fastening clamp; 212. Sliding frame; 213. Transmission block; 214. Transmission shaft; 215. Second rotating shaft. Detailed Implementation
[0032] 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.
[0033] Example:
[0034] like Figures 1-7 As shown, this utility model provides a technical solution: a bridge defect detection device, comprising:
[0035] Mounting box 1;
[0036] Transmission assembly 2 is placed inside mounting frame 1. Transmission assembly 2 includes a transmission disk 21 rotatably connected to mounting frame 1, a first transmission rod 22 slidably connected to transmission disk 21, a sliding frame 212 fixedly connected to the first transmission rod 22, a transmission shaft 214 fixedly connected to sliding frame 212, a transmission block 213 slidably connected to transmission shaft 214, a fastening clamp 211 fixedly connected to transmission block 213, two fastening clamps 211 are provided, a spring is fixedly connected between the two fastening clamps 211, a mounting chamber 210 is rotatably connected to the two fastening clamps 211, and a fixed frame 29 is slidably connected to mounting chamber 210.
[0037] A fourth transmission rod 28 is slidably connected to the fixed frame 29, a third transmission rod 27 is fixedly connected to the fourth transmission rod 28, a second transmission rod 25 is fixedly connected to the third transmission rod 27, and the second transmission rod 25 is slidably connected to the transmission disc 21.
[0038] In this invention, a motor is installed inside the mounting frame 1, with the motor output fixed to the first rotating shaft 24. When installing the ground-penetrating radar, the motor is started, and the first rotating shaft 24 drives the transmission disc 21 to rotate. The transmission disc 21 pushes the first transmission rod 22 to move closer to the fixed frame 29. The first transmission rod 22 drives the sliding frame 212 to move, causing the transmission shaft 214 to slide on the transmission block 213. The transmission block 213 presses down, causing the fastening clamp 211 to slide down. The two fastening clamps 211 clamp and fix the ground-penetrating radar inward. At the same time, because the transmission disc 21 is an irregular circle, when the first transmission rod 22 slides closer to the mounting chamber 210, it drives the second transmission rod 25 to slide down, and then drives the third transmission rod 27 to slide down, causing the fourth transmission rod 28 to slide in the inclined groove of the fixed frame 29. Guided by the inclined groove, the fixed frame 29 slides closer to the mounting chamber 210, squeezing the ground-penetrating radar and fitting it into the mounting chamber 210, thus completing the installation.
[0039] Furthermore, such as Figures 1 to 7As shown, a sliding groove is provided on the transmission disc 21. A first sliding shaft 23 is fixedly connected to the first transmission rod 22 and slidably connected to the transmission disc 21. The fastening clamp 211 is rotatably connected to the mounting chamber 210 through the second rotating shaft 215. A second sliding shaft 26 is fixedly connected to the second transmission rod 25 and slidably connected to the transmission disc 21. By setting the first transmission rod 22 to be slidably connected to the sliding groove on the transmission disc 21 through the first sliding shaft 23, the sliding groove can provide a specific movement trajectory for the first sliding shaft 23 during device operation, thereby effectively limiting the movement direction and range of the first transmission rod 22 and ensuring that it accurately drives the movement of subsequent components. Similarly, the second sliding shaft 26 on the second transmission rod 25 is slidably connected to the sliding groove on the transmission disc 21, which can limit the movement of the second transmission rod 25 and ensure the stability and accuracy of the transmission process.
[0040] A first rotating shaft 24 is fixedly connected to the transmission disc 21. By fixing the first rotating shaft 24 to the transmission disc 21, the motor can be fixed on the first rotating shaft 24 in actual use, and the end of the motor away from the first rotating shaft 24 can be fixed in the mounting frame 1. When the motor is running, it can directly drive the first rotating shaft 24 to rotate, thereby controlling the rotation of the transmission disc 21 and realizing the power input and effective control of the entire transmission assembly 2.
[0041] like Figure 3 as well as Figure 5 As shown, a sloping groove is provided on the fixed frame 29, and the fourth transmission rod 28 is slidably connected in the sloping groove on the fixed frame 29. By providing a sloping groove on the fixed frame 29, when the fourth transmission rod 28 slides on the fixed frame 29, the unique tilt angle and shape of the sloping groove will limit the fourth transmission rod 28. This limiting will convert the linear sliding of the fourth transmission rod 28 into a pushing force in a specific direction, thereby causing the fixed frame 29 to move in a predetermined direction, realizing the squeezing and fixing action of the ground penetrating radar.
[0042] like Figures 2 to 7 As shown, a damper is fixedly connected to the bottom of the third transmission rod 27. The side of the damper at the bottom of the third transmission rod 27 away from the third transmission rod 27 is fixedly connected to the bottom of the inner wall of the mounting frame 1. By fixing the damper to the bottom of the third transmission rod 27, the damper can slow down the movement speed of the third transmission rod 27 during the operation of the device, thus playing a buffering role. At the same time, the damper can provide a certain resistance, making it easier to fix the third transmission rod 27 stably in a suitable position, preventing unnecessary shaking or displacement, and ensuring the smoothness of the transmission process.
[0043] An opening is provided on the mounting chamber 210, and the first transmission rod 22 is slidably connected in the opening on the mounting frame 1. By providing an opening on the mounting chamber 210, the opening provides a smooth sliding channel for the first transmission rod 22 when it moves, avoiding obstruction of the displacement of the first transmission rod 22 by the mounting chamber 210, ensuring that the first transmission rod 22 can freely and smoothly drive the relevant components to complete the transmission action, and ensuring the smooth progress of the entire installation process.
[0044] like Figures 6 to 7 As shown, the transmission block 213 has an oblique hole, and the transmission shaft 214 is slidably connected in the oblique hole on the transmission block 213. By having an oblique hole on the transmission block 213, the oblique hole provides a specific sliding path for the transmission shaft 214 when the device is running. When the transmission shaft 214 slides in the oblique hole, the oblique structure of the oblique hole will cause the transmission shaft 214 to generate a lateral pushing force on the transmission block 213, thereby realizing the effective transmission of the transmission block 213, and then driving the fastening clamp 211 to complete the clamping action of the ground penetrating radar.
[0045] Working principle: such as Figures 1 to 7 As shown, a motor is first installed in the mounting frame 1. The output end of the motor is fixed to the first rotating shaft 24. When it is necessary to install the ground penetrating radar, the motor is started first, so that the first rotating shaft 24 drives the transmission disk 21 to rotate. The transmission disk 21 pushes the first transmission rod 22 to move closer to the fixed frame 29. The first transmission rod 22 drives the sliding frame 212 to move, and drives the transmission shaft 214 to slide on the transmission block 213. The transmission block 213 is pressed down, which in turn drives the fastening clamp 211 to slide down. The two fastening clamps 211 move inward to clamp and fix the ground penetrating radar.
[0046] Meanwhile, since the transmission disc 21 is set as an irregular circle, when the first transmission rod 22 is driven to slide towards the side closer to the installation chamber 210, the second transmission rod 25 will be driven to slide down, the third transmission rod 27 will be driven to slide down, and the fourth transmission rod 28 will slide in the inclined groove on the fixed frame 29. Under the guidance of the inclined groove, the fixed frame 29 will be driven to slide towards the side closer to the installation chamber 210. At this time, the fixed frame 29 presses against the ground penetrating radar, and the fixed frame 29 gradually fits into the installation chamber 210, completing the installation of the ground penetrating radar.
[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A bridge defect detection device, characterized in that, include: Mounting frame (1); A transmission assembly (2) is placed inside a mounting frame (1). The transmission assembly (2) includes a transmission disc (21) rotatably connected to the mounting frame (1). A first transmission rod (22) is slidably connected to the transmission disc (21). A sliding frame (212) is fixedly connected to the first transmission rod (22). A transmission shaft (214) is fixedly connected to the sliding frame (212). A transmission block (213) is slidably connected to the transmission shaft (214). A fastening clamp (211) is fixedly connected to the transmission block (213). There are two fastening clamps (211). A spring is fixedly connected between the two fastening clamps (211). An installation chamber (210) is rotatably connected to the two fastening clamps (211). A fixed frame (29) is slidably connected to the installation chamber (210). A fourth transmission rod (28) is slidably connected to the fixed frame (29), a third transmission rod (27) is fixedly connected to the fourth transmission rod (28), a second transmission rod (25) is fixedly connected to the third transmission rod (27), and the second transmission rod (25) is slidably connected to the transmission disc (21).
2. The bridge defect detection device according to claim 1, characterized in that: The transmission disc (21) has a sliding groove, and the first transmission rod (22) is fixedly connected to the first sliding shaft (23). The first sliding shaft (23) is slidably connected to the transmission disc (21). The fastening clamp (211) is rotatably connected to the mounting chamber (210) through the second rotating shaft (215). The second transmission rod (25) is fixedly connected to the second sliding shaft (26), and the second sliding shaft (26) is slidably connected to the transmission disc (21).
3. The bridge defect detection device according to claim 1, characterized in that: The transmission disc (21) is fixedly connected to a first rotating shaft (24).
4. The bridge defect detection device according to claim 1, characterized in that: The fixed frame (29) has an inclined groove, and the fourth transmission rod (28) is slidably connected in the inclined groove on the fixed frame (29).
5. The bridge defect detection device according to claim 4, characterized in that: The bottom of the third transmission rod (27) is fixedly connected to a damper, and the side of the damper at the bottom of the third transmission rod (27) away from the third transmission rod (27) is fixedly connected to the bottom of the inner wall of the mounting frame (1).
6. The bridge defect detection device according to claim 1, characterized in that: The mounting compartment (210) has an opening, and the first transmission rod (22) is slidably connected to the opening on the mounting frame (1).
7. The bridge defect detection device according to claim 1, characterized in that: The transmission block (213) has an oblique hole, and the transmission shaft (214) is slidably connected in the oblique hole on the transmission block (213).