A special-shaped steel structure bridge climbing monitoring device

Abstract

The present application relates to the field of bridge detection, in particular to a kind of special-shaped steel structure bridge climbing monitoring device, including installation box and moving mechanism, moving mechanism is arranged at the bottom of installation box and is used to drive installation box to move on the surface of steel structure bridge;It also includes ring mechanism and detection mechanism;One end of installation box along the length direction is provided with vertical slot, ring mechanism includes semicircular guide block that can reciprocate along the length direction of vertical slot, two arc-shaped connecting strips are mirror-image arranged on semicircular guide block, and annular accommodating cavity for accommodating steel structure bridge is formed between the two arc-shaped connecting strips and semicircular guide block;Detection mechanism is arranged at the end of installation box close to ring mechanism and can detect the damage condition of bridge surface.By the cooperation of detection mechanism and ring mechanism, different sizes of steel structure can be comprehensively detected, and installation box can be moved on the surface of steel structure bridge by moving mechanism, so that the effect of close inspection can be achieved.

Description

Technical Field

[0001] This invention relates to the field of bridge inspection, specifically to a climbing monitoring device for irregularly shaped steel structure bridges. Background Technology

[0002] With the introduction of my country's "dual carbon" goals, steel structure bridges have gained favor in the industry due to their advantages such as light weight, strong span capacity, high degree of industrialization, and low energy consumption. To date, my country has over 12,000 steel structure bridges. Such a large number of steel structure bridges also presents considerable challenges for maintenance. The integrity of the steel structure bridge's paint and the presence of fatigue cracks at core load-bearing locations are key areas of focus for maintenance during operation, requiring frequent close inspections.

[0003] The main load-bearing components of mega-bridges are mostly made of steel, such as the main beams of cable-stayed bridges and suspension bridges, and the arch ribs of arch bridges. These mega-bridges are often designed with well-maintained inspection channels, which can be conveniently inspected during operation by manpower or equipment. Among conventional bridge structures, steel structure bridges are mostly steel box girder and steel-concrete composite beam bridges. These bridges are generally not very high, and can be inspected at close range with the help of inspection vehicles and other equipment.

[0004] In recent years, with the increasing demands for bridge aesthetics, irregularly shaped steel structure bridges have gradually become more common, including irregularly shaped steel arch ribs and steel bridge towers. These irregularly shaped arch ribs and bridge towers have irregular shapes and small cross-sectional dimensions, making it difficult to install conventional permanent inspection access points. Furthermore, installing too many permanent inspection access points can negatively impact the aesthetic appeal of steel structure bridges. Therefore, irregularly shaped steel structure bridges face technical challenges such as low inspection efficiency, high operational risks, and the inability to closely observe areas, resulting in maintenance blind spots. This directly restricts the development of steel structure landscape bridges in my country, necessitating a highly efficient device that allows for close-range inspection to solve the maintenance and inspection challenges of irregularly shaped steel structure bridges during their operational phase. Summary of the Invention

[0005] To address the problems existing in current technology, a climbing monitoring device for irregular steel structure bridges is provided. Through the cooperation of the detection mechanism and the surrounding mechanism, it can comprehensively detect steel structures of different sizes. The moving mechanism allows the installation box to move on the surface of the steel structure bridge, enabling close inspection and detection of different locations on the steel structure bridge.

[0006] To address the problems in the existing technology, the technical solution adopted by this invention is as follows:

[0007] A climbing monitoring device for irregularly shaped steel structure bridges includes a mounting box and a moving mechanism. The mounting box is set in a horizontal position, and the moving mechanism is set at the bottom of the mounting box and is used to drive the mounting box to move on the surface of the steel structure bridge. It also includes a circling mechanism and a detection mechanism.

[0008] The mounting box has a vertical groove at one end along its length. A surrounding mechanism is located at the end of the mounting box near the vertical groove. The surrounding mechanism includes a semi-circular guide block that can move back and forth along the length of the vertical groove. The semi-circular guide block is set in a horizontal position. Two arc-shaped connecting strips are mirrored on the semi-circular guide block. The two arc-shaped connecting strips and the semi-circular guide block form an annular receiving cavity for accommodating the steel structure bridge.

[0009] The inspection mechanism is located at one end of the mounting box near the surrounding mechanism and is capable of inspecting the surface damage of the bridge.

[0010] Preferably, the winding mechanism further includes an inverted plate, a winding shaft, and a push spring;

[0011] Each arc-shaped connecting strip is provided with an arc-shaped guide groove for accommodating a semi-circular guide block;

[0012] A mounting block is provided at the center of the top of the semi-circular guide block, and L-shaped rope holes are provided on both sides of the mounting block to avoid the winding rope.

[0013] The C-shaped plate is set on top of the mounting block, and the take-up shaft is rotatably set inside the C-shaped plate. Each arc-shaped guide bar has a take-up rope at one end near the center of the semi-circular guide block. The two take-up ropes are wound around the take-up shaft through the corresponding L-shaped rope holes.

[0014] There are two push springs, which are sleeved on the corresponding winding rope and located between the mounting block and the corresponding arc-shaped connecting strip.

[0015] Preferably, the detection mechanism includes a ring-shaped sliding block, a color sensor, and a high-definition camera;

[0016] A semi-circular guide groove is provided on the semi-circular guide block, and an annular sliding block is slidably set in the semi-circular guide groove;

[0017] The inner walls on both sides of the arc-shaped guide groove are mirrored with arc-shaped sliding grooves, and the annular sliding block is provided with arc-shaped guide blocks that cooperate with the arc-shaped sliding grooves on both sides. The arc-shaped guide blocks are slidably set in the corresponding arc-shaped sliding grooves.

[0018] The color sensor and high-definition camera are located on the side of the annular slider away from the inner wall of the bottom of the curved sliding groove.

[0019] Preferably, the annular sliding block is provided with a mounting hole that penetrates the annular slider along the arc direction, the mounting hole is provided with an iron strip, and each arc-shaped connecting strip is provided with an electromagnetic acceleration coil.

[0020] Preferably, the mounting block is provided with a limiting mechanism for limiting the position of the annular sliding block.

[0021] Preferably, the limiting mechanism includes a first linear actuator and a first magnet;

[0022] The first linear actuator is vertically positioned at the top center of the mounting block. The actuator of the first linear actuator passes through the mounting block and the semi-circular guide block and is equipped with a horizontal plate.

[0023] The first magnet is positioned on one side of the bottom of the horizontal plate;

[0024] A rectangular cutout is provided on the bottom side of the horizontal plate away from the first magnet, and a flip plate is hinged inside the rectangular cutout;

[0025] The bottom of the mounting block is provided with a clearance groove that runs through the semi-circular guide block. The clearance groove is used to avoid movement of the horizontal plate.

[0026] Preferably, the moving mechanism includes track wheels, a timing belt, and a mounting plate;

[0027] Two track rollers are mirror-mounted on both sides of the mounting box along its length. The two track rollers are located at the two ends of the mounting box along its length, and the two track rollers on the same side are connected by a synchronous belt drive.

[0028] Multiple bar electromagnets are equidistantly arranged on the synchronous belt, and there are two mounting plates, which are horizontally set between two track wheels on the same side;

[0029] Each mounting plate has multiple first electrode plates at its bottom, and each bar electromagnet has a second electrode plate that cooperates with the first electrode plates and passes through the synchronous belt. The second electrode plate is located inside the synchronous belt.

[0030] Preferably, a horizontal bar is provided on the side of the mounting block near the mounting box. The horizontal bar is slidably set in the vertical groove and is rotatably set inside the mounting box on the lead screw. The lead screw is in a vertical state, and one end of the horizontal bar extends into the mounting box and is threadedly connected to the lead screw.

[0031] Preferably, the bottom of the mounting box is provided with an adjustment mechanism for adjusting the position of the mounting box.

[0032] Preferably, the adjustment mechanism includes a second linear actuator, a limit plate, a steering motor, and a circular electromagnet;

[0033] There are two second linear actuators, which are arranged vertically inside the mounting box.

[0034] The limit plate is positioned horizontally on top of the two second linear actuators;

[0035] The steering motor is positioned vertically at the center of the top of the limit plate.

[0036] The output shaft of the rotating motor passes through the limiting plate and the mounting box and is equipped with a circular electromagnet.

[0037] The advantages of this application compared to the prior art are:

[0038] 1. This application utilizes the cooperation of tracked wheels, a synchronous belt, and a mounting plate. As the synchronous belt rotates, the first and second electrode plates come into contact, causing the bar electromagnet to generate magnetism. This allows the bar electromagnet to adhere to the surface of the steel structure bridge, enabling the mounting box to move to any position along the surface of the irregularly shaped steel structure bridge, thereby achieving close-range inspection. Through the cooperation of a semi-circular guide block, an arc-shaped guide strip, an annular sliding block, and a winding shaft, the semi-circular guide block and the arc-shaped guide strip can form an annular receiving cavity, and the annular sliding block can rotate along the annular receiving cavity, allowing for comprehensive inspection of the surface of steel structure bridges of different sizes and increasing the inspection range.

[0039] 2. This application utilizes the combination of an electromagnetic accelerator coil and an iron bar to enable the annular sliding block to rotate within the annular cavity formed by the semi-circular guide block and the arc-shaped guide bar. A color sensor and a high-definition camera mounted on the annular sliding block can detect and photograph the surface color of the steel bridge structure. This facilitates the assessment of corrosion conditions on the steel bridge surface by personnel.

[0040] 3. This application utilizes the cooperation of a first linear actuator and a first magnet. The first magnet attracts the iron bar disposed inside the annular sliding block, thereby restricting the position of the annular sliding block. When detection is required, the flip plate rotates, thereby pushing the annular sliding block to move, giving the annular sliding block an initial velocity. In cooperation with the electromagnetic acceleration coil, the annular sliding block can rotate, thus completing the detection. Attached Figure Description

[0041] Figure 1 A three-dimensional monitoring device for climbing irregular steel structure bridges Figure 1 ;

[0042] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0043] Figure 3 A three-dimensional monitoring device for climbing irregular steel structure bridges Figure 2 ;

[0044] Figure 4 yes Figure 3 Enlarged view of a section at point B in the middle;

[0045] Figure 5 This is a three-dimensional sectional view of a climbing monitoring device for an irregularly shaped steel structure bridge.

[0046] Figure 6 Yes, yes Figure 5 Enlarged view of a section at point C;

[0047] Figure 7 A partial three-dimensional monitoring device for climbing irregular steel structure bridges Figure 1 ;

[0048] Figure 8 This is a partial three-dimensional sectional view of a climbing monitoring device for an irregularly shaped steel structure bridge.

[0049] Figure 9 yes Figure 8 Enlarged view of a section at point D;

[0050] Figure 10 This is a three-dimensional diagram of a loop sliding block in a climbing monitoring device for an irregularly shaped steel structure bridge.

[0051] Figure 11 This is a three-dimensional diagram of the limiting mechanism in a climbing monitoring device for an irregularly shaped steel structure bridge;

[0052] Figure 12 This is a three-dimensional exploded view of the mounting box and moving mechanism in a climbing monitoring device for an irregularly shaped steel structure bridge.

[0053] The numbers on the map are:

[0054] 1-Mounting box; 11-Vertical slot; 12-Moving motor; 13-Lead screw; 14-Rotating motor;

[0055] 2-Moving mechanism; 21-Crawler wheel; 22-Synchronous belt; 221-Bar electromagnet; 222-Second electrode plate; 23-Mounting plate; 231-First electrode plate;

[0056] 3-Circling mechanism; 31-Semi-circular guide block; 311-Mounting block; 3112-L-shaped rope hole; 3113-Allowing groove; 3114-Horizontal bar; 312-Semi-circular guide groove; 32-Arc-shaped connecting bar; 321-Arc-shaped guide groove; 322-Rolling rope; 323-Arc-shaped sliding groove; 324-Electromagnetic acceleration coil; 33-I-shaped plate; 331-Rolling motor; 34-Rolling shaft; 35-Push spring;

[0057] 4-Detection mechanism; 41-Annular sliding block; 411-Arc-shaped guide block; 412-Mounting hole; 413-Iron strip; 42-Color sensor; 43-High-definition camera;

[0058] 5-Limiting mechanism; 51-First linear actuator; 511-Horizontal plate; 5111-Flipping motor; 512-Rectangular cut; 513-Flipping plate; 52-First magnet;

[0059] 6-Adjustment mechanism; 61-Second linear actuator; 62-Limit plate; 63-Steering motor; 64-Circular electromagnet. Detailed Implementation

[0060] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0061] See Figures 1 to 12 As shown, a climbing monitoring device for irregularly shaped steel structure bridges includes a mounting box 1 and a moving mechanism 2. The mounting box 1 is horizontally positioned, and the moving mechanism 2 is located at the bottom of the mounting box 1 and is used to drive the mounting box 1 to move on the surface of the steel structure bridge. It also includes a circling mechanism 3 and a detection mechanism 4. A vertical groove 11 is provided at one end of the mounting box 1 along its length. The circling mechanism 3 is located at one end of the mounting box 1 near the vertical groove 11. The circling mechanism 3 includes a semi-circular guide block 31 that can move back and forth along the length of the vertical groove 11. The semi-circular guide block 31 is horizontally positioned. Two arc-shaped connecting strips 32 are mirror-imagely arranged on the semi-circular guide block 31, forming an annular cavity between the two arc-shaped connecting strips 32 and the semi-circular guide block 31 to accommodate the steel structure bridge. The detection mechanism 4 is located at one end of the mounting box 1 near the circling mechanism 3 and is capable of detecting damage to the bridge surface.

[0062] Workers place the installation box 1 on the irregular steel structure bridge. Then, by adjusting the surrounding mechanism 3, the semi-circular guide block 31 can move back and forth along the length of the vertical groove 11, allowing it to move closer to the steel structure bridge. Next, the two arc-shaped connecting strips 32 are adjusted, moving along the arc surface of the semi-circular guide block 31. At this point, the two arc-shaped connecting strips 32 and the semi-circular guide block 31 form an annular cavity to accommodate the steel structure bridge, enabling the inspection of steel structure bridges of different sizes. Then, by adjusting the inspection mechanism 4, it can rotate along the circumference of the annular cavity, allowing the inspection mechanism 4 to inspect the paint wear and surface corrosion of the irregular steel structure bridge. After the inspection of the corresponding locations is completed, workers adjust the moving mechanism 2, which moves the installation box 1, enabling a comprehensive inspection of the entire irregular steel structure bridge. This solves the technical problem of conventional inspection methods having difficulty in close observation and creating blind spots in maintenance.

[0063] See Figure 2 , Figure 4 , Figure 7 and Figure 9As shown, the winding mechanism 3 also includes an inverted plate 33, a winding shaft 34, and a push spring 35; each arc-shaped connecting bar 32 is provided with an arc-shaped guide groove 321 for accommodating a semi-circular guide block 31; a mounting block 311 is provided at the top center of the semi-circular guide block 31, and L-shaped rope holes 3112 for avoiding the winding rope 322 are provided on both sides of the mounting block 311; the inverted plate 33 is provided on the top of the mounting block 311, and the winding shaft 34 is rotatably disposed inside the inverted plate 33; a winding rope 322 is provided at one end of each arc-shaped guide bar near the center of the semi-circular guide block 31, and the two winding ropes 322 are wound around the winding shaft 34 through the corresponding L-shaped rope holes 3112; there are two push springs 35, which are sleeved on the corresponding winding ropes 322 and located between the mounting block 311 and the corresponding arc-shaped connecting bar 32.

[0064] The C-shaped plate 33 is also equipped with a winding motor 331 for driving the winding shaft 34 to rotate. When not under inspection, the winding shaft 34 winds up the two winding ropes 322, thereby allowing the arc-shaped guide groove 321 of the arc-shaped connecting strip 32 to move along the semi-circular guide block 31 toward the mounting block 311. At this time, the push spring 35 is compressed, thereby generating elastic force. When the mounting box 1 is placed on the surface of the irregular steel structure bridge, the operator adjusts the winding motor 331, which drives the winding shaft 34 to rotate. As the winding shaft 34 rotates, the rope passes through the two L-shaped rope holes 3112. This allows the two winding ropes 322 to be released simultaneously. Each winding rope 322 is wound with a push spring 35. Under the elastic force of the two push springs 35, the two arc-shaped connecting strips 32 slide along the semi-circular guide block 31. The ends of the two arc-shaped connecting strips 32 away from the mounting block 311 move closer to each other, thus adapting to irregularly shaped steel structure bridges of different sizes. The two arc-shaped connecting strips 32 and the semi-circular guide block 31 form an annular cavity for accommodating the steel structure bridge. The detection mechanism 4 can rotate along the circumference of the annular cavity, thus enabling comprehensive inspection of the surface of the irregularly shaped steel structure bridge.

[0065] See Figure 4 and Figure 10 As shown, the detection mechanism 4 includes an annular sliding block 41, a color sensor 42, and a high-definition camera 43; a semi-circular guide groove 312 is provided on the semi-circular guide block 31, and the annular sliding block 41 is slidably disposed in the semi-circular guide groove 312; the inner walls of the two sides of the arc-shaped guide groove 321 are mirror images of the arc-shaped sliding groove 323, and arc-shaped guide blocks 411 that cooperate with the arc-shaped sliding groove 323 are provided on both sides of the annular sliding block 41, and the arc-shaped guide blocks 411 are slidably disposed in the corresponding arc-shaped sliding groove 323; the color sensor 42 and the high-definition camera 43 are disposed on the side of the annular sliding block 41 away from the bottom inner wall of the arc-shaped sliding groove 323.

[0066] When it is necessary to inspect the surface of an irregularly shaped steel structure bridge, the staff adjusts the annular sliding block 41. The annular sliding block 41 slides along the semi-circular guide groove 312 on the semi-circular guide block 31. When the annular sliding block 41 moves between the semi-circular guide block 31 and the arc-shaped connecting strip 32, the arc-shaped guide block 411 set on the annular sliding block 41 can enter the arc-shaped sliding groove 323 of the corresponding arc-shaped connecting strip 32, so that the annular sliding block 41 can slide along the arc-shaped sliding groove 323 of the arc-shaped connecting strip 32, and the annular sliding block 41 can slide along the semi-circular guide block 31 and the two arc-shaped connecting strips 32. The annular cavity formed by the connecting strip 32 rotates. At this time, the color sensor 42 set on the annular sliding block can rotate with the annular sliding block to fully detect the coverage of the paint on the surface of the irregular steel structure bridge. When the color sensor 42 detects a color change, the high-definition camera 43 can take a picture of the surface of the irregular steel structure bridge at this location. After taking the picture, the picture is transmitted to the staff wirelessly in a timely manner. The staff can judge the damage of the irregular steel structure bridge based on the picture, so as to quickly detect and investigate the surface of the irregular steel structure bridge.

[0067] See Figure 3 and Figure 10 As shown, the annular sliding block 41 is provided with a mounting hole 412 that passes through the annular slider along the arc direction. The mounting hole 412 is provided with an iron strip, and each arc-shaped connecting strip 32 is provided with an electromagnetic acceleration coil 324.

[0068] An iron bar is installed inside the mounting hole 412 of the annular sliding block 41. The ends of two arc-shaped connecting bars 32 away from the mounting block 311 approach each other. The two arc-shaped connecting bars 32 and the semi-circular guide block 31 form an annular cavity for the rotation of the annular sliding block 41. As the annular sliding block 41 rotates, when the annular sliding block 41 moves to the electromagnetic acceleration coil 324, the electromagnetic acceleration coil 324 and the iron bar cooperate to apply a certain force to the annular sliding block 41, thereby enabling the annular sliding block 41 to rotate. When the annular sliding block 41 moves to the semi-circular guide block 312, the annular sliding block 41 rotates. At point 1, due to the presence of friction, the annular sliding block 41 decelerates, thereby preventing the speed of the annular sliding block 41 from being too fast, which would cause the connection between the arc-shaped connecting strip 32 and the semi-circular guide block 31 to be unstable. As the annular sliding block 41 moves, when the annular sliding block 41 moves to the next electromagnetic acceleration ring 324, the electromagnetic acceleration ring 324 can continue to accelerate the annular sliding block 41, so that the annular sliding block 41 can maintain continuous rotation. Through the cooperation of the high-definition camera 43 and the color sensor 42, a comprehensive inspection of the surface of the irregular steel structure bridge can be carried out.

[0069] See Figure 9 and Figure 11As shown, the mounting block 311 is provided with a limiting mechanism 5 for limiting the position of the annular sliding block 41; the limiting mechanism 5 includes a first linear actuator 51 and a first magnet 52; the first linear actuator 51 is vertically disposed at the top center of the mounting block 311, the actuator of the first linear actuator 51 passes through the mounting block 311 and the semi-circular guide block 31 and is provided with a horizontal plate 511; the first magnet 52 is disposed on one side of the bottom of the horizontal plate 511; a rectangular cutout 512 is provided on the side of the bottom of the horizontal plate 511 away from the first magnet 52, and a flip plate 513 is hinged in the rectangular cutout 512; a clearance groove 3113 penetrating the semi-circular guide block 31 is provided at the bottom of the mounting block 311, and the clearance groove 3113 is used to avoid the movement of the horizontal plate 511.

[0070] A rotating motor 5111 is provided on the horizontal plate 511 to drive the rotating plate 513 to rotate. When the device is not needed, the first linear driver 51 drives the horizontal plate 511 to move towards the center of the semi-circular guide block 31. At this time, the first magnet 52 provided on the horizontal plate 511 attracts the iron strip 413 on the annular sliding block 41, thereby fixing the position of the annular sliding block 41. When testing is required, the operator adjusts the rotating motor 5111, which drives the rotating plate 513 to rotate. The rotating plate 513 then contacts the annular sliding block 41. The annular sliding block 41 is given a certain pushing force, so that the annular sliding block 41 can move. At this time, the first linear actuator 51 drives the horizontal plate 511 to retract into the clearance groove 3113, so as to make way for the movement of the annular sliding block 41. Under the acceleration of the electromagnetic acceleration coil 324, the iron bar set in the annular sliding block 41 can be accelerated by the electromagnetic acceleration coil 324, so that the annular sliding block 41 moves along the circular cavity formed by the arc-shaped connecting strip 32 and the semi-circular guide block 31. At this time, the color sensor 42 and the high-definition camera 43 can perform comprehensive detection on the surface of the irregular steel structure bridge.

[0071] See Figure 1 and Figure 12 As shown, the moving mechanism 2 includes track wheels 21, a timing belt 22, and a mounting plate 23. Two track wheels 21 are mirror-arranged on both sides of the mounting box 1 along its length. The two track wheels 21 are located at the two ends of the mounting box 1 along its length, and the two track wheels 21 on the same side are connected by the timing belt 22. Multiple bar electromagnets 221 are equidistantly arranged on the timing belt 22. There are two mounting plates 23, which are horizontally arranged between the two track wheels 21 on the same side. Multiple first electrode plates 231 are arranged at the bottom of each mounting plate 23, and a second electrode plate 222 that cooperates with the first electrode plate 231 and passes through the timing belt 22 is arranged on each bar electromagnet 221. The second electrode plate 222 is located inside the timing belt 22.

[0072] Inside the mounting box 1, on both sides, are mobile motors 12 for driving the track wheels 21 to rotate. By adjusting the corresponding mobile motors 12, the track wheels 21 located on both sides along the length of the mounting box 1 can rotate as the mobile motors 12 are started. As the track wheels 21 rotate, the first electrode plate 231 on the mounting plate 23 can contact the corresponding second electrode plate 222. At this time, the electromagnet generates magnetism, thereby attracting the electromagnet to the irregular steel structure bridge, so that the mounting box 1 can be attached to the surface of the irregular steel structure bridge. As the synchronous belt 22 continues to rotate, the mounting box 1 can move on the surface of the irregular steel structure bridge. The mounting box 1 is also equipped with a battery, which can provide power support for the movement and operation of the mounting box 1.

[0073] See Figure 5 As shown, a horizontal bar 3114 is provided on the side of the mounting block 311 near the mounting box 1. The horizontal bar 3114 is slidably disposed in the vertical groove 11. The screw 13 is rotatably disposed inside the mounting box 1. The screw 13 is in a vertical state. One end of the horizontal bar 3114 extends into the mounting box 1 and is threadedly connected to the screw 13.

[0074] The top of the mounting box 1 is equipped with a rotary motor 14 for driving the lead screw 13 to rotate. The operator adjusts the rotary motor 14, which drives the lead screw 13 to rotate. The end of the horizontal bar 3114 away from the mounting block 311 is spirally connected to the lead screw 13. As the lead screw 13 rotates, the horizontal bar 3114 on the mounting block 311 slides along the length of the vertical groove 11, thereby adjusting the position of the semi-circular guide block 31. This allows the irregular steel structure bridge to be located at the center of the annular cavity formed by the semi-circular guide block 31 and the two arc-shaped connecting bars 32, thus accommodating irregular steel structure bridges of different sizes.

[0075] See Figure 5 , Figure 6 and Figure 12 As shown, the bottom of the mounting box 1 is provided with an adjustment mechanism 6 for adjusting the position of the mounting box 1; the adjustment mechanism 6 includes a second linear actuator 61, a limiting plate 62, a steering motor 63 and a circular electromagnet 64; there are two second linear actuators 61, which are arranged vertically inside the mounting box 1; the limiting plate 62 is arranged horizontally on top of the two second linear actuators 61; the steering motor 63 is arranged vertically at the center of the top of the limiting plate 62; the output shaft of the rotating motor 14 passes through the limiting plate 62 and the mounting box 1 and is provided with a circular electromagnet 64.

[0076] After the mounting box 1 is moved to the area requiring turning, the operator adjusts the two second linear actuators 61. The two second linear actuators 61 drive the limiting plate 62 to move towards the inner wall of the bottom of the mounting box 1. At this time, the second electromagnet generates magnetism, causing the circular electromagnet 64 to attract to the surface of the irregular steel structure bridge, thereby lifting the entire mounting box 1 and separating the strip electromagnet 221 set on the synchronous belt 22 from the irregular steel structure bridge. Subsequently, the steering motor 63 rotates to adjust the orientation of the mounting box 1. When the mounting box 1 is adjusted to a suitable position, the second linear actuators 61 drive the mounting box 1 to contact the surface of the irregular steel structure bridge, and the strip electromagnet 221 contacts the surface of the irregular steel structure bridge. Then, the magnetism of the circular electromagnet 64 disappears, thereby separating the circular electromagnet 64 from the surface of the irregular steel structure bridge, thus completing the turning of the mounting box 1.

[0077] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A climbing monitoring device for irregularly shaped steel structure bridges, comprising a mounting box (1) and a moving mechanism (2), wherein the mounting box (1) is arranged horizontally, and the moving mechanism (2) is located at the bottom of the mounting box (1) and is used to drive the mounting box (1) to move on the surface of the steel structure bridge; characterized in that, It also includes a circumferential mechanism (3) and a detection mechanism (4); The mounting box (1) has a vertical groove (11) at one end along its length. The surrounding mechanism (3) is located at one end of the mounting box (1) near the vertical groove (11). The surrounding mechanism (3) includes a semi-circular guide block (31) that can move back and forth along the length of the vertical groove (11). The semi-circular guide block (31) is set in a horizontal state. Two arc-shaped connecting strips (32) are mirrored on the semi-circular guide block (31). An annular receiving cavity for accommodating the steel structure bridge is formed between the two arc-shaped connecting strips (32) and the semi-circular guide block (31). The detection mechanism (4) is located at one end of the mounting box (1) near the circling mechanism (3) and can detect the damage to the bridge surface. The circling mechanism (3) also includes a wedge plate (33), a winding shaft (34) and a push spring (35); the moving mechanism (2) includes a track wheel (21), a timing belt (22) and a mounting plate (23). Each arc-shaped connecting strip (32) is provided with an arc-shaped guide groove (321) for accommodating a semi-circular guide block (31). A mounting block (311) is provided at the top center of the semi-circular guide block (31), and L-shaped rope holes (3112) are provided on both sides of the mounting block (311) to avoid the winding rope (322). The C-shaped plate (33) is set on the top of the mounting block (311), and the winding shaft (34) is rotatably set inside the C-shaped plate (33). Each arc-shaped guide bar has a winding rope (322) at one end near the center of the semi-circular guide block (31). The two winding ropes (322) are wound around the winding shaft (34) through the corresponding L-shaped rope holes (3112). There are two push springs (35), which are sleeved on the corresponding winding rope (322) and located between the mounting block (311) and the corresponding arc-shaped connecting strip (32).

2. The climbing monitoring device for irregularly shaped steel structure bridges according to claim 1, characterized in that, The detection mechanism (4) includes a ring-shaped sliding block (41), a color sensor (42), and a high-definition camera (43). A semi-circular guide groove (312) is provided on the semi-circular guide block (31), and an annular sliding block (41) is slidably disposed in the semi-circular guide groove (312); The inner walls of the two sides of the arc-shaped guide groove (321) are mirrored with arc-shaped sliding grooves (323), and the two sides of the annular sliding block (411) are provided with arc-shaped guide blocks (411) that cooperate with the arc-shaped sliding grooves (323). The arc-shaped guide blocks (411) are slidably arranged in the corresponding arc-shaped sliding grooves (323). The color sensor (42) and the high-definition camera (43) are located on the side of the annular sliding block (41) away from the bottom inner wall of the arc-shaped sliding groove (323).

3. The climbing monitoring device for irregularly shaped steel structure bridges according to claim 2, characterized in that, The annular sliding block (41) has a mounting hole (412) through the annular slider along the arc direction. The mounting hole (412) is provided with an iron strip (413). Each arc-shaped connecting strip (32) is provided with an electromagnetic acceleration coil (324).

4. The climbing monitoring device for irregularly shaped steel structure bridges according to claim 3, characterized in that, The mounting block (311) is provided with a limiting mechanism (5) for limiting the position of the annular sliding block (41).

5. The climbing monitoring device for irregularly shaped steel structure bridges according to claim 4, characterized in that, The limiting mechanism (5) includes a first linear actuator (51) and a first magnet (52); The first linear actuator (51) is vertically positioned at the top center of the mounting block (311). The actuator of the first linear actuator (51) passes through the mounting block (311) and the semi-circular guide block (31) and is provided with a horizontal plate (511). The first magnet (52) is disposed on one side of the bottom of the horizontal plate (511); A rectangular cutout (512) is provided on the side of the bottom of the horizontal plate (511) away from the first magnet (52), and a flip plate (513) is hinged inside the rectangular cutout (512). The bottom of the mounting block (311) is provided with a clearance groove (3113) that passes through the semi-circular guide block (31). The clearance groove (3113) is used to avoid the movement of the horizontal plate (511).

6. The climbing monitoring device for irregularly shaped steel structure bridges according to claim 1, characterized in that, The mounting box (1) is mirror-equipped with two track wheels (21) on both sides along the length direction. The two track wheels (21) are located at both ends of the mounting box (1) along the length direction, and the two track wheels (21) on the same side are connected by a synchronous belt (22). Multiple bar electromagnets (221) are equidistantly arranged on the synchronous belt (22), and there are two mounting plates (23). The mounting plates (23) are horizontally arranged between two track wheels (21) located on the same side. Each mounting plate (23) has multiple first electrode plates (231) at its bottom, and each bar electromagnet (221) has a second electrode plate (222) that cooperates with the first electrode plate (231) and passes through the synchronous belt (22). The second electrode plate (222) is located inside the synchronous belt (22).

7. The climbing monitoring device for irregularly shaped steel structure bridges according to claim 6, characterized in that, A horizontal bar (3114) is provided on the side of the mounting block (311) near the mounting box (1). The horizontal bar (3114) is slidably disposed in the vertical groove (11). The screw (13) is rotatably disposed inside the mounting box (1). The screw (13) is in a vertical state. One end of the horizontal bar (3114) extends into the mounting box (1) and is threadedly connected to the screw (13).

8. The climbing monitoring device for irregularly shaped steel structure bridges according to claim 1, characterized in that, The bottom of the mounting box (1) is provided with an adjustment mechanism (6) for adjusting the position of the mounting box (1).

9. A climbing monitoring device for irregularly shaped steel structure bridges according to claim 8, characterized in that, The adjustment mechanism (6) includes a second linear actuator (61), a limit plate (62), a steering motor (63), and a circular electromagnet (64). There are two second linear actuators (61), and the two second linear actuators (61) are arranged vertically inside the mounting box (1); The limiting plate (62) is positioned horizontally on top of the two second linear actuators (61); The steering motor (63) is vertically positioned at the top center of the limit plate (62); The output shaft of the rotating motor (14) passes through the limiting plate (62) and the mounting box (1) and is equipped with a circular electromagnet (64).

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