Civil engineering road and bridge crack surveying device

Abstract

The utility model relates to the technical field of road and bridge crack exploration, in particular to a civil engineering road and bridge crack exploration device, which comprises an infrared thermal imager, the installation mechanism comprises a rubber frame arranged on the surface of the thermal infrared imager, the top of the rubber frame is connected with a top cover in a clamped mode, the upper end of the inner wall of the rubber frame is slidably connected with a plurality of abutting blocks, and the thermal infrared imager is installed in the rubber frame through cooperation of a breathable pad, the abutting blocks, bolts, the top cover and a blocking block. The rubber frame and the top cover are matched with each other, so that the infrared thermal imaging instrument surface is protected, the same abutting force to the infrared thermal imaging instrument surface is guaranteed, the situation that the infrared thermal imaging instrument shell is deformed due to the fact that the clamping force to the infrared thermal imaging instrument is too large is avoided, the road and bridge crack exploration precision is guaranteed, the infrared thermal imaging instrument surface is protected through cooperation of the rubber frame and the top cover, and the service life of the infrared thermal imaging instrument surface is prolonged. Impurities are prevented from being attached to the surface of the thermal infrared imager, so that interference of the impurities to the thermal infrared imager is reduced.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge crack detection technology, and in particular to a device for detecting cracks in civil engineering roads and bridges. Background Technology

[0002] Roads and bridges in civil engineering are an important part of transportation infrastructure. In order to ensure the safety of road and bridge use, crack detection devices are usually used to detect cracks in roads and bridges.

[0003] A search of the Chinese patent "A Crack Detection Device for Civil Engineering Roads and Bridges" with the authorization announcement number "CN220010108U" reveals that the patent uses four adjusting screws to clamp the L-shaped clamp and rubber pad onto the surface of the detection device, thereby making it easy to install the detection device on a drone.

[0004] In the aforementioned application, rotating the four adjusting screws one by one can easily cause one of the rubber pads to exert excessive pressure on the side of the surveying equipment, which can easily cause deformation of the surveying equipment casing, thereby affecting the accuracy of road and bridge crack surveying.

[0005] Therefore, a crack detection device for civil engineering roads and bridges is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a crack detection device for civil engineering roads and bridges in order to solve the above-mentioned problems, and to improve the problem that the outer shell of the detection device is easily deformed due to different clamping forces.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a device for detecting cracks in civil engineering roads and bridges, comprising: an infrared thermal imager; and an installation mechanism, wherein the installation mechanism includes a rubber frame disposed on the surface of the infrared thermal imager, a top cover being snapped onto the top of the rubber frame, a plurality of abutments being slidably connected to the upper end of the inner wall of the rubber frame, the surfaces of the abutments being slidably connected to the inner wall of the top cover, a blocking block being slidably connected to the inner wall of the blocking block, a bolt being threadedly connected to the inner wall of the blocking block, the surface of the bolt being threadedly connected to the inner wall of the top cover, and a plurality of breathable pads being fixedly connected to the inner wall of the rubber frame. By using a combination of breathable pads, abutments, bolts, a top cover, and blocking blocks, the infrared thermal imager is installed inside a rubber frame. This ensures uniform contact force with the surface of the infrared thermal imager, preventing excessive clamping force that could deform the outer shell and thus guaranteeing the accuracy of crack detection in roads and bridges. The rubber frame and top cover also protect the surface of the infrared thermal imager, preventing impurities from adhering to it and reducing interference from impurities.

[0008] Preferably, a spring is fixedly connected to one end of the abutment block, and the other end of the spring is fixedly connected to the upper end of the inner wall of the rubber frame.

[0009] Preferably, a plurality of pressure blocks are fixedly connected to the bottom of the top cover, and the bottom of the pressure blocks contacts the top of the infrared thermal imager. The pressure blocks limit the position of the infrared thermal imager, avoiding the risk of the infrared thermal imager shaking up and down within the rubber frame, thereby ensuring the accuracy of the infrared thermal imager in detecting cracks in roads and bridges.

[0010] Preferably, a connecting rope is fixedly connected to one end of the abutment block, and the other end of the connecting rope passes through and extends out of the inner wall of the rubber frame.

[0011] Preferably, one end of the connecting rope is fixedly connected to a connecting frame, and the inner surface of the connecting frame contacts the upper surface of the rubber frame.

[0012] Preferably, the top of the top cover is fixedly connected to two limiting rods, and the inner wall of the block is slidably connected to the surface of the limiting rods.

[0013] Preferably, tempered glass is embedded in the surface of the rubber frame and the top cover.

[0014] The beneficial effects of this utility model are:

[0015] 1. By using a breathable pad, abutment block, bolts, top cover, and blocking block in combination, the infrared thermal imager is installed inside the rubber frame. This ensures that the contact force with the surface of the infrared thermal imager is uniform, avoiding excessive clamping force that could cause deformation of the infrared thermal imager shell. This ensures the accuracy of crack detection in roads and bridges. The rubber frame and top cover work together to protect the surface of the infrared thermal imager, preventing impurities from adhering to the surface and reducing interference from impurities.

[0016] 2. By using a pressure block to limit the movement of the infrared thermal imager, the risk of the infrared thermal imager shaking up and down within the rubber frame is avoided, thereby ensuring the accuracy of the infrared thermal imager in detecting cracks in roads and bridges. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the civil engineering road and bridge crack detection device of this utility model.

[0018] Figure 2 Exploded view of the rubber frame, top cover and plug of the civil engineering road and bridge crack detection device of this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of A in the middle

[0020] Figure 4This is a cross-sectional view of the rubber frame of the civil engineering road and bridge crack detection device of this utility model.

[0021] In the diagram: 100, Infrared thermal imager; 200, Mounting mechanism; 201, Rubber frame; 202, Top cover; 203, Abutment block; 204, Spring; 205, Pressure block; 206, Bolt; 207, Connecting rope; 208, Connecting frame; 209, Limiting rod; 210, Block; 211, Breathable pad. Detailed Implementation

[0022] 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.

[0023] In practical implementation: such as Figure 1-4 As shown, a device for detecting cracks in civil engineering roads and bridges includes: an infrared thermal imager 100; and an installation mechanism 200. The installation mechanism 200 includes a rubber frame 201 disposed on the surface of the infrared thermal imager 100. A top cover 202 is snapped onto the top of the rubber frame 201. Several abutments 203 are slidably connected to the upper end of the inner wall of the rubber frame 201. The surfaces of the abutments 203 are slidably connected to the inner wall of the top cover 202. A blocking block 210 is slidably connected to the inner wall of the top cover 202. A bolt 206 is threadedly connected to the inner wall of the blocking block 210. The surfaces of the bolts 206 are threadedly connected to the inner wall of the top cover 202. Several breathable pads 211 are fixedly connected to the inner wall of the rubber frame 201.

[0024] The top cover 202, the block 210 and the venting pad 211 are all rubber components, and the bottom of the rubber frame 201 is fixedly connected to the drone.

[0025] It should be noted that a drone consists of an airframe, a power system, a flight control system, and a communication system. After fully charging the drone, the operator uses a remote control to start the motors, gradually increasing the propeller speed to generate sufficient lift to leave the ground. During takeoff, it is crucial to maintain a stable ascent, avoiding swaying or tilting. After setting the takeoff parameters in the flight control system, the drone can automatically complete the takeoff process. The flight control system controls the motor speed according to a preset program, ensuring a smooth takeoff to the designated altitude. This is a relatively common and well-known technology in the field and is not closely related to the technical issues of this application; therefore, it has not been further elaborated upon.

[0026] When it is necessary to conduct crack detection at the bottom of a road or bridge, the power cord of the infrared thermal imager 100 is passed through the reserved hole at the bottom of the rubber frame 201 and connected to the built-in power supply inside the drone. Then, the venting pad 211 is brought into contact with the surface of the infrared thermal imager 100. The top cover 202 is then snapped onto the inner wall of the rubber frame 201, and the abutment block 203 is moved and snapped into the top cover 202. The blocking block 210 is pushed down into the top cover 202, so that the end of the blocking block 210 abuts against the end of the abutment block 203. The bolt 206 is rotated so that the bolt 206 is threaded into the blocking block 210 and the top cover 202, thus installing the infrared thermal imager 100 into the rubber frame 201.

[0027] The operator guides the drone equipped with an infrared thermal imager 100 to the underside of the road bridge according to the predetermined inspection route, maintaining a stable flight altitude and speed to ensure the infrared thermal imager 100 can clearly and comprehensively collect thermal image data of the bridge's underside. During flight, care must be taken to avoid collisions between the drone and the bridge, and the flight attitude must be adjusted promptly to obtain the optimal inspection angle. While collecting image data, the infrared thermal imager 100 records relevant information such as shooting time, location, flight altitude, and ambient temperature for subsequent data analysis and processing. The large amount of thermal image data collected is then filtered to remove blurry, invalid, or... For repeated images, clear and valuable images are retained for subsequent analysis. Using professional thermal imaging analysis software, temperature analysis is performed on the screened thermal images to identify areas with abnormal temperatures. Cracks usually exhibit different temperature characteristics from the surrounding normal areas, such as higher or lower temperatures. Based on the distribution and characteristics of abnormal temperature areas, combined with the structural characteristics of the bridge, potential cracks are identified, and parameters such as the location, length, and width of the cracks are measured and located. Precise measurements can be performed using software measurement tools or compared with the bridge design drawings to determine the specific location of the cracks, thereby facilitating the maintenance of roads and bridges by staff.

[0028] like Figure 3 As shown, a spring 204 is fixedly connected to the end of the abutment block 203, and the other end of the spring 204 is fixedly connected to the upper end of the inner wall of the rubber frame 201. Several pressure blocks 205 are fixedly connected to the bottom of the top cover 202, and the bottom of the pressure blocks 205 contacts the top of the infrared thermal imager 100.

[0029] like Figure 3 As shown, a connecting rope 207 is fixedly connected to one end of the abutment block 203. The other end of the connecting rope 207 passes through and extends out of the inner wall of the rubber frame 201. One end of the connecting rope 207 is fixedly connected to a connecting frame 208. The inner surface of the connecting frame 208 contacts the upper surface of the rubber frame 201. The connecting rope 207 is a nylon component.

[0030] like Figure 2As shown, two limiting rods 209 are fixedly connected to the top of the top cover 202, the inner wall of the block 210 is slidably connected to the surface of the limiting rods 209, and tempered glass is embedded in the rubber frame 201 and the surface of the top cover 202.

[0031] When the infrared thermal imager 100 needs to be repaired, rotate the bolt 206 away from the top cover 202, pull down the block 210 to move it up on the surface of the limit rod 209, pull the connecting frame 208 down, so that the connecting rope 207 is pulled, thereby causing the four blocks 203 to move away from the inner wall of the top cover 202 at the same time, and pull the top cover 202 away from the rubber frame 201, so that the infrared thermal imager 100 can be repaired.

[0032] In use, the power cord of the infrared thermal imager 100 is passed through the pre-drilled hole at the bottom of the rubber frame 201 and connected to the built-in power supply inside the drone. The venting pad 211 is then in contact with the surface of the infrared thermal imager 100. The top cover 202 is then snapped onto the inner wall of the rubber frame 201, and the bottom of the pressure block 205 is pressed against the top of the infrared thermal imager 100. The elastic force of the spring 204 automatically pushes the abutment block 203 to move and snap into the top cover 202. The blocking block 210 is then pushed down into the top cover 202, so that the end of the blocking block 210 is pressed against the end of the abutment block 203. The bolt 206 is then rotated to thread the bolt 206 into the blocking block 210 and the top cover 202.

[0033] It should be noted that the infrared thermal imager 100, spring 204, bolt 206 and drone mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the infrared thermal imager 100 and drone can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. 。

Claims

1. A civil engineering road bridge crack surveying device, characterized by, include: Infrared thermal imager (100); The mounting mechanism (200) includes a rubber frame (201) disposed on the surface of the infrared thermal imager (100). A top cover (202) is snapped onto the top of the rubber frame (201). Several abutments (203) are slidably connected to the upper end of the inner wall of the rubber frame (201). The surfaces of the abutments (203) are slidably connected to the inner wall of the top cover (202). A blocking block (210) is slidably connected to the inner wall of the blocking block (210). A bolt (206) is threadedly connected to the inner wall of the blocking block (210). The surface of the bolt (206) is threadedly connected to the inner wall of the top cover (202). Several breathable pads (211) are fixedly connected to the inner wall of the rubber frame (201).

2. A civil engineering road bridge crack survey device according to claim 1, wherein: A spring (204) is fixedly connected to one end of the abutment block (203), and the other end of the spring (204) is fixedly connected to the upper end of the inner wall of the rubber frame (201).

3. A civil engineering road bridge crack survey device as claimed in claim 1, wherein: The bottom of the top cover (202) is fixedly connected with several pressure blocks (205), and the bottom of the pressure blocks (205) contacts the top of the infrared thermal imager (100).

4. A civil engineering road bridge crack survey device as claimed in claim 1, wherein: The end of the abutment (203) is fixedly connected to a connecting rope (207), and the other end of the connecting rope (207) passes through and extends out of the inner wall of the rubber frame (201).

5. A civil engineering road bridge crack survey device according to claim 4, wherein: One end of the connecting rope (207) is fixedly connected to the connecting frame (208), and the inner surface of the connecting frame (208) contacts the upper surface of the rubber frame (201).

6. A civil engineering road bridge crack survey device according to claim 1, characterized in that: The top of the top cover (202) is fixedly connected to two limiting rods (209), and the inner wall of the block (210) is slidably connected to the surface of the limiting rods (209).

7. A civil engineering road bridge crack survey device as claimed in claim 1, wherein: Tempered glass is embedded in the surfaces of the rubber frame (201) and the top cover (202).

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