Portable bridge appearance detection disease collection device

Abstract

The application discloses a portable bridge appearance detection disease collection device and relates to the technical field of bridge investigation. The device comprises a collector main body, an infrared camera fixedly connected with the bottom of the telescopic collector main body through an adjusting assembly, a connecting rod arranged at the bottom of the collector main body and used for fixing the adjusting assembly, and an HDMI interface arranged at the bottom of the collector main body and used for connecting the infrared camera. The infrared camera is connected with the collector main body through a signal line and an HDMI plug. The device is provided with a handheld camera and an infrared distance measuring instrument, can accurately measure the distance from the photographing position to the disease position, and can meet the diversified needs of users through the length-adjustable camera assembly. The device is more comprehensive in observation, can be conveniently transported and carried due to the detachable adjustment, is convenient for bridge detection personnel to use, and only needs a small number of workers to participate in the detection of the bridge, so that the overall inspection speed of the bridge is improved.

Description

Technical Field

[0001] This invention relates to the field of bridge surveying technology, specifically a portable bridge appearance inspection and defect collection device. Background Technology

[0002] Bridges are an important component of highways, a key hub in transportation engineering, and a vital infrastructure for national economic and social development. They reflect a country's or region's comprehensive strength in terms of economic power, science and technology, and productivity. In recent years, the loads on in-service bridges have been continuously increasing, materials are gradually aging, structural damage is inevitable, and performance may show signs of degradation. To understand the condition of bridge components, it is necessary to conduct bridge inspections, collect various defect information, analyze the defects, and formulate maintenance plans. This is of great significance for bridge maintenance. At the same time, defect inspection of bridges and pedestrian overpasses is the foundation for completing bridge maintenance work. To facilitate quick and accurate inspection and recording of beam defects, especially for tall bridge components or supports and other components that cannot be inspected in confined spaces;

[0003] The following problems exist in the existing technology:

[0004] Under current technology, the inspection of defects in components and supports of conventional bridges and pedestrian overpasses relies on large bridge survey vehicles, which requires a large number of personnel or visual inspection or the use of telescopes. This makes it difficult to conduct close-up and thorough inspections, resulting in slow inspection speeds and poor results. This approach fails to meet the requirements of speed and convenience for the inspection of conventional bridges and pedestrian overpasses. To address these issues, we propose a portable bridge appearance inspection defect collection device. Summary of the Invention

[0005] The purpose of this invention is to provide a portable bridge appearance inspection and defect collection device to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] This invention provides a portable bridge appearance inspection and defect collection device, comprising a collector body. An infrared camera with imaging and ranging functions is installed at the bottom of the collector body. The bottom of the telescopic collector body is fixedly connected to the infrared camera via an adjustment component. A connecting rod for fixing the adjustment component is provided at the bottom of the collector body. A protective component for protecting the infrared camera is fixedly connected to the end of the adjustment component away from the collector body. The infrared camera is housed inside the protective component. An HDMI interface for connecting the infrared camera is provided at the bottom of the collector body. The infrared camera is connected to the collector body via a signal cable and an HDMI plug.

[0008] Preferably, a camera is provided on one side of the main body of the data collector, an information processing unit microcontroller is provided inside the main body of the data collector, a display screen is provided on the side of the main body of the data collector away from the camera, and the camera is electrically connected to the microcontroller.

[0009] Preferably, the main body of the data collector has a first mounting slot for mounting an infrared rangefinder on the side near the camera. The two ends of the infrared rangefinder are slidably connected to the wall of the first mounting slot. The output end of the infrared rangefinder is electrically connected to the input end of the microcontroller, and the output end of the microcontroller is electrically connected to the input end of the display screen.

[0010] Preferably, the collector body has a second mounting groove for mounting a connecting rod at one end near the adjustment component. A first fixing plate for connecting a locking knob is fixedly connected to both sides of the second mounting groove wall. The first fixing plates on both sides are symmetrically distributed along the axis of the second mounting groove. The connecting rod is rotatably connected to the first fixing plate on both sides through a connecting rod. The locking knob passes through the first fixing plate and is fixedly connected to the connecting rod. A threaded hole for fixing the adjustment component is provided at the end of the connecting rod away from the collector body.

[0011] Preferably, the adjustment assembly includes a mounting cylinder for fixing the telescopic forklift frame. One end of the mounting cylinder near the collector body is fixedly connected to a screw that matches a threaded hole. The collector body and the mounting cylinder are connected by the screw. A first rotating rod for winding the wire is rotatably connected to the inner cavity of the mounting cylinder. The first rotating rod extends through the mounting cylinder to the outside. A screw rod is fixedly connected to one end of the first rotating rod outside the mounting cylinder. The wire passes through the mounting cylinder and extends to the collector body. An HDMI plug is fixedly connected to one end of the wire near the collector body.

[0012] Preferably, the screw rod is made of iron, and a magnet is provided at the bottom of the screw rod for fixing itself. The end of the magnet away from the screw rod is fixedly connected to the wall of the mounting cylinder. The mounting cylinder is provided with a lever for driving the telescopic frame of the forklift. The lever extends through the mounting cylinder into the cylinder. A first telescopic cylinder is slidably connected to the inner wall of the end of the mounting cylinder away from the main body of the collector, and a second telescopic cylinder is slidably connected to the inner wall of the end of the first telescopic cylinder away from the mounting cylinder.

[0013] Preferably, the mounting cylinder is provided with a forklift telescopic frame for driving the first telescopic cylinder and the second telescopic cylinder. One end of the forklift telescopic frame is movably connected to the actuating rod, and the other end of the forklift telescopic frame is slidably connected to the end of the second telescopic cylinder near the mounting cylinder.

[0014] Preferably, the end of the second telescopic cylinder away from the main body of the collector is fixedly connected to two second fixing plates for fixing infrared cameras. The sides of the second fixing plates that are close to each other are rotatably connected to the infrared cameras through bearings. The infrared cameras are connected to wires, and the wires pass through the second telescopic cylinder and exit from the mounting cylinder.

[0015] Preferably, the protective assembly includes a mounting platform for mounting a transparent protective shell, the mounting platform being fixedly connected to the wall of the second telescopic cylinder, a fixing frame for stabilizing the second rotating rod being fixedly connected around the top of the mounting platform, the second rotating rod being fixedly connected to both sides of the inner wall of the fixing frame, and a sweeping ring for cleaning the transparent protective shell being fixedly connected to the end faces of the second rotating rod that are close to each other.

[0016] Preferably, the sweeping ring contacts the transparent protective shell, a pull wire is fixedly connected to the surface of the second rotating rod on one side, the pull wire is fixedly connected to the bottom surface of the rotating rod, the end of the pull wire away from the rotating rod extends through the mounting platform to the second telescopic cylinder, and the end of the pull wire away from the rotating rod passes out from the mounting cylinder, a pull block is fixedly connected to the end of the pull wire outside the mounting cylinder, and a torsion spring is sleeved on the surface of the rotating rod on the other side, the end of the torsion spring away from the sweeping ring is fixedly connected to the wall of the fixed frame.

[0017] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0018] This invention is equipped with a handheld camera and an infrared rangefinder, which can accurately measure the distance from the photographing location to the location of the defect and display the distance on the screen. The length or area of ​​the defect can be calculated from the detection data. The adjustable length camera component can meet the diverse needs of users and provide a more comprehensive observation. The detachable adjustment facilitates the transportation and carrying of the entire device. The adjustable infrared camera angle makes it easy for bridge inspection personnel to use. Only a small number of staff are needed to inspect the bridge, which improves the overall inspection speed and reduces the inspection cost. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of the data collector of the present invention;

[0022] Figure 3 This is the invention Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a schematic diagram of the adjustment component structure of the present invention;

[0024] Figure 5 This is a cross-sectional view of the internal structure of the mounting cylinder of the present invention;

[0025] Figure 6 This is a cross-sectional view of the internal structure of the first telescopic cylinder of the present invention;

[0026] Figure 7 This is a schematic diagram of the position structure of the second telescopic cylinder of the present invention;

[0027] Figure 8 This is a schematic diagram of the fixed frame structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the infrared camera structure of the present invention.

[0029] Figure 10 This is a schematic diagram of the pull wire position in this invention.

[0030] In the picture:

[0031] 1. Collector body; 11. Display screen; 12. HDMI interface; 13. Camera; 14. First mounting slot; 15. Infrared rangefinder; 16. Second mounting slot; 17. First fixing plate; 18. Locking knob; 19. Connecting rod; 191. Threaded hole; 2. Adjustment component; 21. Mounting cylinder; 211. First rotating rod; 212. Tightening rod; 213. Magnet; 22. Screw; 23. Wire; 24. HDMI plug; 25. Pull block; 26. First telescopic cylinder; 261. Actuating lever; 262. Fork-scissor telescopic frame; 27. Second telescopic cylinder; 271. Second fixing plate; 272. Infrared camera; 273. Telescopic spring; 274. Fixing base; 3. Protective component; 31. Mounting platform; 32. Fixing frame; 33. Transparent protective shell; 34. Sweeping ring; 341. Second rotating rod; 342. Pull wire; 343. Torsion spring. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] Please see Figures 1-10This invention provides a portable bridge appearance inspection and defect collection device. Other devices or equipment are commercially available, and their specific working principles are existing technologies, which will not be elaborated further. The portable bridge appearance inspection and defect collection device includes a collector body 1, which is described in detail below. Figure 1 The bottom of the collector body 1 is equipped with an infrared camera 272 with video recording and ranging functions. The bottom of the telescopic collector body 1 is fixedly connected to the infrared camera 272 through the adjustment component 2. The user holds the collector body 1 and uses the camera 13 and infrared rangefinder 15 on the back to inspect the bridge and collect data.

[0034] Please refer to this carefully. Figure 2 and Figure 4 As shown, the bottom of the collector body 1 is provided with a connecting rod 19 for fixing the adjustment component 2. The screw 22 at one end of the mounting cylinder 21 enters the threaded hole 191 at the bottom of the connecting rod 19 for fixing. The other end of the adjustment component 2 is fixedly connected to an infrared camera 272, which has the functions of ranging and taking pictures. The end of the adjustment component 2 away from the collector body 1 is fixedly connected to a protective component 3 for protecting the infrared camera 272. The infrared camera 272 is set inside the protective component 3. The bottom of the collector body 1 is provided with an HDMI interface 12 for connecting the infrared camera 272. The infrared camera 272 is connected to the collector body 1 through a signal cable and an HDMI plug 24. One end of the wire 23 is connected to the infrared camera 272, and the other end extends to the outside of the mounting cylinder 21 close to the collector body 1 and is connected to an HDMI plug 24, which is plugged into the HDMI interface 12 at the bottom of the collector body 1. The collected data is processed by the CPU inside the collector body 1 and displayed on the display screen 11.

[0035] Please refer to this carefully. Figure 2 As shown, the main body 1 of the data collector has a first mounting slot 14 for mounting an infrared rangefinder 15 on the side near the camera 13. The two ends of the infrared rangefinder 15 are slidably connected to the wall of the first mounting slot 14. The output end of the infrared rangefinder 15 is electrically connected to the input end of the microcontroller. The output end of the microcontroller is electrically connected to the input end of the display screen 11. The camera 13 is set on one side of the main body 1 of the data collector. The microcontroller is set inside the main body 1 of the data collector. The display screen 11 is set on the side of the main body 1 of the data collector away from the camera 13. The camera 13 is electrically connected to the microcontroller. The user holds the main body 1 of the data collector and uses the camera 13 and the infrared rangefinder 15 on the back to inspect the appearance of the bridge. The camera 13 and the infrared rangefinder 15 display the data on the display screen 11. The distance from the shooting point to the location of the defect is accurately measured and displayed on the display screen 11 based on the distance. The length or area of ​​the defect can be calculated.

[0036] Please refer to this carefully. Figure 2As shown, the main body 1 of the data collector has a second mounting groove 16 for mounting the connecting rod 19 at one end near the adjustment component 2. The two sides of the second mounting groove 16 are fixedly connected to the first fixing plate 17 with the locking knob 18. The two first fixing plates 17 are symmetrically distributed along the axis of the second mounting groove 16. The two sides of the connecting rod 19 are rotatably connected to the first fixing plate 17 through the connecting rod. The locking knob 18 passes through the first fixing plate 17 and is fixedly connected to the connecting rod 19. The connecting rod 19 is adjusted by using the locking knob 18 to rotate around the central axis, thereby adjusting the angle between the main body 1 of the data collector and the operator.

[0037] Please refer to this carefully. Figure 4 and Figure 5 As shown, the adjustment assembly 2 includes a mounting cylinder 21 for fixing the forklift telescopic frame 262. One end of the mounting cylinder 21 near the collector body 1 is fixedly connected to a screw 22 that matches the threaded hole 191. The collector body 1 and the mounting cylinder 21 are connected by the screw 22. When it is necessary to inspect the side of the bridge or a relatively narrow gap, the adjustment assembly 2 is brought close to the collector body 1, and the screw 22 at one end of the mounting cylinder 21 enters the threaded hole 191 at the bottom of the connecting rod 19 for fixation. The other end of the adjustment assembly 2 is fixedly connected to an infrared sensor. The camera 272 has the functions of ranging and taking pictures. The inner cavity of the mounting cylinder 21 is rotatably connected to a first rotating rod 211 for winding the wire 23. The first rotating rod 211 extends through the mounting cylinder 21 to the outside. A screw rod 212 is fixedly connected to one end of the first rotating rod 211 outside the mounting cylinder 21. The wire 23 passes through the mounting cylinder 21 and extends to the collector body 1. An HDMI plug 24 is fixedly connected to one end of the wire 23 near the collector body 1, which can transmit the signal of the infrared camera 272 to the collector body 1.

[0038] Please refer to this carefully. Figure 4 and Figure 5As shown, the screw rod 212 is made of metal. A magnet 213 is located at the bottom of the screw rod 212 for fixing itself. The end of the magnet 213 away from the screw rod 212 is fixedly connected to the wall of the mounting cylinder 21. When inspecting with the infrared camera 272, if the angle needs to be changed, the screw rod 212 can be rotated. The rotation of the screw rod 212 drives the first rotating rod 211 at the bottom to rotate around its own axis. The mounting cylinder 21 is equipped with a lever 261 for driving the telescopic frame 262 of the forklift. The lever 261 extends through the mounting cylinder 21 into the cylinder. Squeezing the lever 261 causes the levers 261 on both sides of the mounting cylinder 21 to move closer together. The lever 261 drives the telescopic frame 262 at the bottom to extend, and the mounting cylinder 21 moves away from the main body of the data collector 1. A first telescopic cylinder 26 is slidably connected to the inner wall of one end of the device. A second telescopic cylinder 27 is slidably connected to the inner wall of the end of the first telescopic cylinder 26 away from the mounting cylinder 21, which can change the overall length of the device. A scissor telescopic frame 262 for driving the first telescopic cylinder 26 and the second telescopic cylinder 27 is provided inside the mounting cylinder 21. One end of the scissor telescopic frame 262 is movably connected to a lever 261, and the other end of the scissor telescopic frame 262 is slidably connected to the end of the second telescopic cylinder 27 near the mounting cylinder 21. The movement of the scissor telescopic frame 262 drives the top second telescopic cylinder 27 away from the first telescopic cylinder 26, causing the second telescopic cylinder 27 to slide and lengthen within the first telescopic cylinder 26, thus meeting the diverse needs of users and allowing for a more comprehensive observation when inspecting bridges.

[0039] Please refer to this carefully. Figure 6 and Figure 7 As shown, the end of the second telescopic cylinder 27 furthest from the main body 1 is fixedly connected to two second fixing plates 271 for fixing the infrared camera 272. The sides of the second fixing plates 271 that are close to each other are rotatably connected to the infrared camera 272 through bearings. The infrared camera 272 is connected to the wire 23. The wire 23 passes through the second telescopic cylinder 27 and exits from the mounting cylinder 21. The first rotating rod 211 rotates and then winds up the guide wire surrounding the surface. One end of the wire 23 is connected to the tail of the infrared camera 272. When the wire 23 moves, it pulls the tail of the infrared camera 272, causing the shooting angle of the infrared camera 272 to change and take a picture. The surface of the wire 23 is wrapped with a high-strength mesh metal to ensure that the wire 23 will not break when the infrared camera 272 is pulled. The bottom of the observation end of the infrared camera 272 is fixedly connected to a telescopic spring 273 for stabilizing itself. The end of the telescopic spring 273 furthest from the infrared camera 272 is fixedly connected to the fixing seat 274. The end of the fixing seat 274 furthest from the telescopic spring 273 is fixedly connected to the second telescopic cylinder 27.

[0040] Please refer to this carefully. Figure 1 , Figure 4 and Figure 8As shown, the protective assembly 3 includes a mounting platform 31 for mounting the transparent protective shell 33. The mounting platform 31 is fixedly connected to the wall of the second telescopic cylinder 27. A fixing frame 32 for stabilizing the second rotating rod 341 is fixedly connected around the top of the mounting platform 31. The second rotating rod 341 is fixedly connected to both sides of the inner wall of the fixing frame 32. A sweeping ring 34 for cleaning the transparent protective shell 33 is fixedly connected to the end faces of the second rotating rod 341 that are close to each other.

[0041] The sweeping ring 34 contacts the transparent protective shell 33. A pull wire 342 is fixedly connected to the surface of the second rotating rod 341 on one side. The pull wire 342 is fixedly connected to the bottom surface of the rotating rod, and the end of the pull wire 342 is located around the bottom of the second rotating rod 341. When pulled, the second rotating rod 341 will rotate around its own axis. The rotation of the second rotating rod 341 drives the sweeping ring 34 at the other end to move on the transparent protective shell 33. The end of the pull wire 342 away from the rotating rod extends through the mounting platform 31 to the second telescopic cylinder 27, and the end of the pull wire 342 away from the rotating rod passes through the mounting cylinder 21. A pull block 25 is fixedly connected to the end of the pull wire 342 outside the mounting cylinder 21. The pull block 25 on the outer surface of the mounting cylinder 21 can be pulled, which drives the pull wire 342 at the bottom. The pull wire 342 moves and drives the second rotating rod 341 at one end to move. A torsion spring 343 is sleeved on the surface of the second rotating rod at the other end of the sweeping ring 34. The end of the torsion spring 343 away from the sweeping ring 34 is fixedly connected to the frame wall of the fixed frame 32. The second rotating rod 341 at the other end of the sweeping ring 34 is in close contact with the mounting platform 31 under the action of the torsion spring 343. When the pull wire 342 is not under force, the sweeping ring 34 will return to its original position under the action of the torsion spring 343, repeatedly cleaning the transparent protective shell 33 to prevent the infrared camera 272 from taking unclear pictures.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A portable bridge appearance inspection and defect collection device, characterized in that, The device includes a collector body (1), an infrared camera (272) is provided at the bottom of the collector body (1), the bottom of the telescopic collector body (1) is fixedly connected to the infrared camera (272) through an adjustment component (2), the bottom of the collector body (1) is provided with a connecting rod (19) for fixing the adjustment component (2), the end of the adjustment component (2) away from the collector body (1) is fixedly connected with a protective component (3) for protecting the infrared camera (272), the infrared camera (272) is located inside the protective component (3), the bottom of the collector body (1) is provided with an HDMI interface (12) for connecting the infrared camera (272), and the infrared camera (272) is connected to the collector body (1) through a signal cable and an HDMI plug (24); The main body (1) of the collector has a second mounting groove (16) for mounting the connecting rod (19) at one end near the adjustment component (2). The second mounting groove (16) has a first fixing plate (17) for connecting the locking knob (18) fixedly connected to both sides of the groove wall. The first fixing plates (17) on both sides are symmetrically distributed along the axis of the second mounting groove (16). The connecting rod (19) is rotatably connected to the first fixing plate (17) on both sides through a connecting rod. The locking knob (18) passes through the first fixing plate (17) and is fixedly connected to the connecting rod (19). The connecting rod (19) has a threaded hole (191) for fixing the adjustment component at one end away from the main body (1). The adjustment assembly (2) includes a mounting cylinder (21) for fixing the telescopic frame (262) of the forklift. The mounting cylinder (21) is fixedly connected to one end of the collector body (1) with a screw (22) that matches the threaded hole (191). The collector body (1) and the mounting cylinder (21) are connected by the screw (22). The inner cavity of the mounting cylinder (21) is rotatably connected to a first rotating rod (211) for winding the wire (23). The first rotating rod (211) extends through the mounting cylinder (21) to the outside. The end of the first rotating rod (211) outside the mounting cylinder (21) is fixedly connected to a screw rod (212). The wire (23) extends through the mounting cylinder (21) to the collector body (1). The end of the wire (23) near the collector body (1) is fixedly connected to an HDMI plug (24).

2. The portable bridge appearance inspection and defect collection device according to claim 1, characterized in that: A camera (13) is provided on one side of the main body (1) of the collector. A microcontroller is provided inside the main body (1) of the collector. A display screen (11) is provided on the side of the main body (1) away from the camera (13). The camera (13) is electrically connected to the microcontroller.

3. The portable bridge appearance inspection and defect collection device according to claim 2, characterized in that: The main body (1) of the collector has a first mounting slot (14) for mounting an infrared rangefinder (15) on the side near the camera (13). The two ends of the infrared rangefinder (15) are slidably connected to the wall of the first mounting slot (14). The output end of the infrared rangefinder (15) is electrically connected to the input end of the microcontroller. The output end of the microcontroller is electrically connected to the input end of the display screen (11).

4. The portable bridge appearance inspection and defect collection device according to claim 1, characterized in that: The screw rod (212) is made of iron. A magnet (213) is provided at the bottom of the screw rod (212) for fixing itself. The end of the magnet (213) away from the screw rod (212) is fixedly connected to the wall of the mounting cylinder (21). The mounting cylinder (21) is provided with a lever (261) for driving the telescopic frame (262). The lever (261) extends through the mounting cylinder (21) into the cylinder. A first telescopic cylinder (26) is slidably connected to the inner wall of the end of the mounting cylinder (21) away from the collector body (1). A second telescopic cylinder (27) is slidably connected to the inner wall of the end of the first telescopic cylinder (26) away from the mounting cylinder (21).

5. The portable bridge appearance inspection and defect collection device according to claim 4, characterized in that: The mounting cylinder (21) is provided with a forklift telescopic frame (262) for driving the first telescopic cylinder (26) and the second telescopic cylinder (27). One end of the forklift telescopic frame (262) is movably connected to the lever (261), and the other end of the forklift telescopic frame (262) is slidably connected to the end of the second telescopic cylinder (27) near the mounting cylinder (21).

6. The portable bridge appearance inspection and defect collection device according to claim 5, characterized in that: Two second fixing plates (271) for fixing infrared cameras (272) are fixedly connected to the end of the second telescopic cylinder (27) away from the main body (1). The side of the second fixing plates (271) that are close to each other is rotatably connected to the infrared camera (272) through a bearing. The infrared camera (272) is connected to a wire (23). The wire (23) passes through the second telescopic cylinder (27) and comes out from the mounting cylinder (21). A telescopic spring (273) for stabilizing itself is fixedly connected to the bottom of the observation end of the infrared camera (272). The end of the telescopic spring (273) away from the infrared camera (272) is fixedly connected to the fixing seat (274). The end of the fixing seat (274) away from the telescopic spring is fixedly connected to the second telescopic cylinder (27).

7. The portable bridge appearance inspection and defect collection device according to claim 1, characterized in that: The protective assembly (3) includes a mounting platform (31) for mounting a transparent protective shell (33). The mounting platform (31) is fixedly connected to the wall of the second telescopic cylinder (27). A fixing frame (32) for stabilizing the second rotating rod (341) is fixedly connected around the top of the mounting platform (31). The second rotating rod (341) is fixedly connected to both sides of the inner wall of the fixing frame (32). A sweeping ring (34) for cleaning the transparent protective shell (33) is fixedly connected to the end faces of the second rotating rod (341) that are close to each other.

8. The portable bridge appearance inspection and defect collection device according to claim 7, characterized in that: The sweeping ring (34) is in contact with the transparent protective shell (33). A pull wire (342) is fixedly connected to the surface of the second rotating rod (341) on one side. The pull wire (342) is fixedly connected to the bottom surface of the rotating rod. The end of the pull wire (342) away from the rotating rod passes through the mounting platform (31) and extends to the second telescopic cylinder (27). The end of the pull wire (342) away from the rotating rod passes out from the mounting cylinder (21). A pull block (25) is fixedly connected to the end of the pull wire (342) outside the mounting cylinder (21). A torsion spring (343) is sleeved on the surface of the rotating rod on the other side. The end of the torsion spring (343) away from the sweeping ring (34) is fixedly connected to the frame wall of the fixed frame (32).

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