Power supply equipment for bridge inspection system

Abstract

This invention discloses a power supply device for a bridge inspection system, including a battery connected to a photovoltaic module to receive power from the photovoltaic module, a control box, an automatic charging module, and a charging interface assembly mounted on the inspection device. The automatic charging module is connected to the battery and the control box, receives power from the battery, and is controlled by the control box. The automatic charging module includes a charging module housing and a charging assembly movably connected to the charging module housing via an elastic element. The charging assembly includes an assembly housing, a guide groove, a positioning structure, and a charging connector extension mechanism. The charging connector extension mechanism is mounted on a movable positioning component. After the movable positioning component abuts and engages with the charging interface, the orientation of the charging connector extension mechanism is directly opposite to the charging interface. This invention achieves relatively accurate connector interface docking without requiring multiple power devices to achieve multi-axis movement, and the components occupy a small space, making it suitable for the needs of inspection devices.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge inspection, and in particular relates to power supply equipment of a bridge inspection system. Background Art

[0002] During the use of bridges, they need to be monitored to achieve collision warning, evidence collection, and timely elimination of potential risks. Bridge inspection equipment is often used for inspection and monitoring to ensure that defects and damage to the bridge can be discovered in time after it is in use or affected by accidents or disasters, so as to assess the health of the bridge. However, the monitoring cameras used to detect external conditions and the inspection devices used to inspect the hidden areas on the sides and bottom of the bridge body installed on super-large bridges have the problem of power supply difficulties. If the land power supply is used to power each monitoring camera and inspection device through a long-distance power supply cable, there are defects such as large loss, easy damage to the cable after long-term use, and inconvenient power supply control of each device. In order to facilitate more reliable power supply to the monitoring system of super-large bridges, the existing technology has set up solar photovoltaic panels on the bridge, charged the battery installed on the bridge through photovoltaic power generation, and then the battery powered the monitoring facilities on the bridge.

[0003] However, this type of solution lacks a convenient solution for powering the patrol device. The photovoltaic power generation components and batteries evenly distributed with the monitoring facilities can easily charge the batteries when there is sufficient sunlight. However, the monitoring equipment, such as cameras and laser rangefinders, which are installed at fixed positions on the bridge, do not need to be powered for a long time in actual use. As a result, there is a lot of power abandonment after the battery is fully charged. The corresponding patrol device needs to move frequently along the track and extend the camera to collect images in hidden areas, so it consumes a lot of power and cannot be directly powered by photovoltaic components. Therefore, it is necessary to set up a structure to charge the patrol device from the batteries evenly distributed on the bridge.

[0004] However, the space on the bridge body set on the track is limited, and the charging device of the conventional automatic charging pile structure is complex in structure, requiring multiple motors and transmission and guide structures to identify and locate the charging socket on the walking structure of the inspection device passing by. It is not suitable for charging inspection devices with limited space and guide rails to regulate the walking mechanism. However, as an exposed inspection track, it is inevitable that there will be dust and debris that affect the flatness of the inner surface of the track. Therefore, during the walking process of the walking mechanism, there is also a situation where the inspection device produces a slight displacement in the up, down, left and right directions of the track section. Therefore, the error caused by this cannot be ignored. The charging connector and the charging interface are directly connected without preliminary positioning. How to use a method that occupies less space, has a simple structure and positioning method, and can effectively ensure that the battery arranged on the bridge body and the charging interface of the inspection device are reliably connected and powered has become a problem that the existing technology needs to solve. Summary of the invention

[0005] The purpose of the present invention is to provide a power supply device for a bridge inspection system, which is used to solve the technical problem that the inspection device in the prior art has difficulty in powering, and there is a lack of a power supply device that can effectively ensure that the charging interface of the inspection device and the batteries distributed on the bridge body can be automatically connected and charged within a limited space.

[0006] The power supply equipment of the bridge inspection system includes a battery connected to a photovoltaic component to receive power from the photovoltaic component, a control box, an automatic charging module, and a charging interface component arranged on the inspection device. The automatic charging module is connected to the battery and the control box, receives power from the battery and is controlled by the control box. The automatic charging module includes a charging module housing and a charging component movably connected to the charging module housing through an elastic element. The charging component includes a component housing, a guide groove, a positioning structure, and a charging connector extension mechanism. The charging interface component includes an interface shield that can move up and down in the walking mechanism of the inspection device under the action of a driving mechanism and a charging connector connected to the charging module housing. The charging interface in the interface shield, after the interface shield is raised, the charging interface extends upward at an angle, the guide groove is used to cooperate with the guide plate on the top of the interface shield to guide the charging interface to move toward the positioning structure, the positioning structure includes a movable positioning component that is positioned and abutted with the extended end of the charging interface, the movable positioning component is abutted and rotated by the charging interface and abutted and retracted by the top of the walking trolley shell of the inspection device, the charging connector extension mechanism is installed on the movable positioning component, after the movable positioning component abuts and fits with the charging interface, the setting direction of the charging connector extension mechanism is directly opposite to the charging interface.

[0007] Preferably, the positioning structure includes a mounting groove arranged on the front side of the bottom of the component shell and a hinged base plate hinged in the mounting groove, the movable positioning component is installed on the hinged base plate, the rear end of the movable positioning component extends backward from the hinged base plate, the hinged base plate is hinged to the side of the mounting groove through a positioning shaft, the charging connector extension mechanism is located in front of the positioning shaft in the initial state, and the front end of the mounting groove is closed and can support the front end of the hinged base plate.

[0008] Preferably, the positioning structure also includes a telescopic spring, the movable positioning component is a slide plate structure slidably mounted on the hinged base plate, an upright portion 1 is vertically arranged at the front end of the movable positioning component, and an upright portion 2 is vertically arranged at the front end of the hinged base plate, the upright portion 1 and the upright portion 2 are connected by a telescopic spring, and the rear end of the movable positioning component abuts against the top of the walking mechanism when the movable positioning component itself is attached to the charging port.

[0009] Preferably, the rear portion of the movable positioning component that can be attached to the top surface of the charging interface is provided with a positioning ridge, and the corresponding lower surface of the charging interface is also provided with a positioning slide with closed front and rear ends; when the movable positioning component is attached to the charging interface, the positioning ridge is inserted into the positioning slide and cooperates with the clearance of the positioning slide; when the linear drive device drives the charging connector to be inserted into the charging interface, the front end of the positioning slide presses against the positioning ridge to prevent the movable positioning component from moving forward.

[0010] Preferably, the automatic charging module also includes a component outer frame and a component upper seat body arranged in the charging shell, the elastic element includes an elastic telescopic part, the charging component is slidably inserted into the opening at the bottom of the component upper seat body, the component upper seat body is connected to the component outer frame through elastic telescopic parts on the left and right sides, and can slide left and right in the component outer frame.

[0011] Preferably, the elastic element further includes a vertical spring, and the upper seat of the component is connected to the charging component via the vertical spring. A plurality of vertical springs are evenly arranged along the outer edge of the inner top of the upper seat of the component.

[0012] Preferably, the interface shield is vertically slidably connected to the traveling trolley shell of the inspection device, and an interface groove for the interface shield to extend out is provided on the traveling trolley shell. A guide plate with a trapezoidal guide end at the rear end is provided on the top of the interface shield, and the top surface of the guide plate is parallel to the top of the traveling mechanism. The top surface shape of the guide end is adapted to the trapezoidal guide end of the guide groove, and the opening size of the trapezoidal guide end toward the positioning structure is smaller than the opening size at the other end.

[0013] Preferably, the automatic charging module also includes a charging component output mechanism arranged in the charging shell, the charging component output mechanism includes a starting motor and an eccentric wheel mechanism installed in the charging module shell, the eccentric wheel mechanism includes an eccentric wheel and a connecting frame installed on the output shaft of the starting motor, the eccentric wheel is arranged perpendicular to the top of the automatic charging module, the connecting frame is fixed on the component outer frame, the eccentric wheel extends into the connecting frame, and the upper and lower sides of the eccentric wheel respectively contact the top plate of the connecting frame and the top plate of the component outer frame.

[0014] The present invention has the following advantages: the present invention forms a guiding effect between the walking mechanism with a charging interface and the charging assembly through the matching relationship between the guide groove and the extended guide plate, and combines with the elastic element to prevent the walking mechanism from being offset and unable to align the interface with the joint. Considering that the walking mechanism moves on the track when walking, the extended charging interface is tilted, and the charging interface and the movable positioning component in the positioning structure are rotated and contracted to ensure that the charging interface can be opposite to the charging interface, and is not affected by the extended angle of the charging interface. In this way, even if the walking mechanism is tilted in the front and rear directions, the alignment of the interface and the joint is not affected. Finally, this scheme adopts an inclined interface joint connection method combined with a limiting structure including a positioning convex strip. On the one hand, the movement of the walking mechanism can be used to realize the positioning of the charging assembly and the charging joint. On the other hand, when the joint is extended, it can avoid pushing the walking mechanism backward before the joint is not tightly connected, so as to ensure good contact of the charging connection part. Moreover, the above structure does not require complex identification, positioning devices and charging joint drive devices, and the charging joint does not need multiple power devices to realize multi-axis movement to achieve more accurate joint interface docking. Each part occupies a small space, which is suitable for the needs of the inspection device and overcomes the problems of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic structural diagram of a power supply device of a bridge inspection system.

[0016] Figure 2 for Figure 1 Structural schematic diagram of the automatic charging module and the traveling mechanism in the charging state in the structure shown.

[0017] Figure 3 for Figure 2 Cross-sectional view of the automatic charging module in the illustrated structure.

[0018] Figure 4 for Figure 2 Bottom view of the automatic charging module in the illustrated configuration.

[0019] Figure 5 for Figure 2 A cross-sectional view of the charging assembly and the travel mechanism in the structure shown in the positioning state.

[0020] Figure 6 for Figure 2 A schematic diagram of the structure of the internal structure of the charging component and the charging interface component in the positioned state in the structure shown.

[0021] Figure 7 for Figure 5 Magnified view of region A in the structure shown.

[0022] The marks in the attached drawings are: 1. inspection device, 2. photovoltaic module, 3. battery, 4. control box, 5. automatic charging module, 501. charging module housing, 502. starting motor, 503. eccentric wheel, 504. connecting frame, 505. component outer frame, 506. vertical spring, 507. component upper seat, 508. component housing, 509. guide opening, 510. mounting groove, 511. guide groove, 5111. trapezoidal guide end, 512 , elastic telescopic part, 513, charging connector, 514, telescopic spring, 515, hinged bottom plate, 5151, upright part two, 516, movable positioning component, 5161, upright part one, 5162, positioning convex strip, 517, linear drive device, 518, power supply module, 6, walking mechanism, 601, walking trolley shell, 602, charging interface, 6021, positioning slide, 603, interface shield, 604, guide plate, 605, built-in battery. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention will be further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0024] like Figure 1-6As shown, the present invention provides a power supply device for a bridge inspection system, including a battery 3 connected to a photovoltaic component 2 and receiving power from the photovoltaic component 2, a control box 4, an automatic charging module 5, and a charging interface 602 component arranged on an inspection device 1, wherein the automatic charging module 5 is connected to the battery 3 and the control box 4, receives power from the battery 3 and is controlled by the control box 4, the automatic charging module 5 includes a charging module housing 501 and a charging component movably connected to the charging module housing 501 through an elastic element, the charging component includes a component housing 508, a guide groove 511, a positioning structure, and a charging connector 513 extending mechanism, the charging interface 602 component includes an interface shield 603 that can move up and down in the walking mechanism 6 of the inspection device 1 under the action of a driving mechanism, and a charging connector 513 connected to the interface shield 6 03, the charging interface 602 is tilted and extended upward after the interface shield 603 is raised, the guide groove 511 is used to cooperate with the guide plate 604 on the top of the interface shield 603 to guide the charging interface 602 to move toward the positioning structure, the positioning structure includes a movable positioning component 516 that is positioned and abutted with the extended end of the charging interface 602, the movable positioning component 516 is abutted and rotated by the charging interface 602 and abutted and retracted by the top of the walking trolley shell 601 of the inspection device 1, the charging connector 513 extension mechanism is installed on the movable positioning component 516, after the movable positioning component 516 is abutted and fitted with the charging interface 602, the setting direction of the charging connector 513 extension mechanism is directly opposite to the charging interface 602.

[0025] The guide groove 511 is fixedly mounted on the rear side of the lower part of the assembly housing 508, and the positioning structure is arranged on the front side of the lower part of the assembly housing 508. The charging connector 513 extension mechanism is mounted on the movable positioning component 516 of the positioning structure and is electrically connected to the power supply structure on the assembly housing 508. The charging connector 513 extension structure includes a charging connector 513 and a linear drive device 517 that pushes the charging connector 513 to extend in the direction of the movable positioning component 516. A power supply module 518 that is electrically connected to the battery 3 and the charging connector 513 is also fixedly mounted on the assembly housing 508. The power supply module 518 transmits the power in the battery 3 to the charging connector 513. The power supply module 518 also uses part of the electric energy to drive the charging assembly output mechanism and the charging connector 513 extension mechanism.

[0026] The positioning structure includes a mounting groove 510 arranged on the front side of the bottom of the component shell 508, a hinged base plate 515 hinged in the mounting groove 510 and a telescopic spring 514, the movable positioning component 516 is a slide plate structure slidably mounted on the hinged base plate 515, the front end of the movable positioning component 516 is vertically provided with an upright portion 1 5161, the front end of the hinged base plate 515 is vertically provided with an upright portion 2 5151, the upright portion 1 5161 and the upright portion 2 5151 are connected by a telescopic spring 514, the rear end of the movable positioning component 516 extends out of the hinged base plate 515 and can abut against the top of the walking mechanism 6 when it is attached to the charging interface 602, the hinged base plate 515 is hinged to the side of the mounting groove 510 through a positioning shaft, the charging connector 513 extending mechanism is located in front of the positioning shaft in the initial state, the front end of the mounting groove 510 is closed and can support the front end of the hinged base plate 515.

[0027] The rear part of the movable positioning component 516 that can be attached to the top surface of the charging interface 602 is provided with a positioning convex strip 5162, and the direction of the positioning convex strip 5162 is perpendicular to the moving direction of the walking mechanism 6, and the lower surface of the corresponding charging interface 602 is also provided with a positioning slideway 6021 with closed front and rear ends; when the movable positioning component 516 is attached to the charging interface 602, the positioning convex strip 5162 is inserted into the positioning slideway 6021 and is in gap with the positioning slideway 6021, and the top of the walking mechanism 6 squeezes the movable positioning component 516 to shrink along the hinged bottom plate 515 to maintain the distance between the positioning convex strip 5162 and the walking mechanism, ensuring that the positioning convex strip 5162 can be inserted into the positioning slideway 6021. In this way, when the linear drive device 517 drives the charging connector 513 to be inserted into the charging interface 602, the front end of the positioning slideway 6021 abuts against the positioning convex strip 5162 to prevent the linear drive device 517 from driving the movable positioning component 516 to move forward under the force of insertion. This ensures that when the front end of the positioning slide 6021 abuts against the positioning ridge 5162 , the distance from the linear drive device 517 to the charging interface 602 is constant and is not affected by the position deviation and elevation angle deviation of the walking mechanism 6 .

[0028] The above structure allows the charging connector 513 to extend in the initial state and press the hinged bottom plate 515 to the bottom of the component shell 508 through its own gravity to keep it horizontal, and the tilted extended charging interface 602 can drive the movable positioning component 516 to rotate when the walking mechanism 6 moves until the lower side of the charging interface 602 fits the movable positioning component 516, combined with the front and rear distance limiting function of the positioning ridge 5162, so that when the walking mechanism 6 moves up and down or deflects forward, backward, left and right, the charging connector 513 can be relative to the charging interface 602 and maintain a stable distance.

[0029] The automatic charging module 5 also includes a charging component output mechanism, a component outer frame 505 and a component upper seat 507 arranged in the charging shell, the elastic element includes an elastic telescopic member 512 and a vertical spring 506, the charging component is slidably inserted in the opening at the bottom of the component upper seat 507, the component upper seat 507 is slidably arranged in the component outer frame 505 and connected to the component outer frame 505 through the elastic telescopic members 512 on the left and right sides, and the component upper seat 507 is connected to the charging component through the vertical spring 506. In this way, the elastic telescopic member 512 allows the component upper seat 507 to move left and right, and the guide groove 511 can drive the component upper seat 507 to move left and right to match the position of the guide plate 604 during the guiding process. The vertical spring 506 is provided with a plurality of uniformly arranged along the outer edge of the inner top of the component upper seat 507, which can not only adapt to the height change of the mobile mechanism as a whole, but also adapt to the deflection and tilt of the mobile mechanism at a certain angle of front, back, left and right. The guide plate 604 is positioned higher than the lower side of the charging interface 602 , so the guide groove 511 that cooperates with it is also positioned higher than the positioning structure. The rear side and bottom of the component shell 508 are provided with guide openings 509 that facilitate the guide plate 604 to enter the component shell 508 and contact the guide groove 511 .

[0030] The interface shield 603 is vertically slidably connected to the traveling trolley housing 601 of the inspection device 1. The traveling trolley housing 601 is provided with an interface slot for the interface shield 603 to extend out. The top of the interface shield 603 is provided with a guide plate 604 with a trapezoidal guide end 5111 at the rear end. The top surface of the guide plate 604 is parallel to the top of the traveling mechanism 6. The top surface shape of the guide end is adapted to the trapezoidal guide end 5111 of the guide slot 511. The trapezoidal guide end 5111 is a guide structure with an open end spacing smaller than the other end. This structure realizes left-right guidance during the forward movement of the traveling mechanism 6 through the trapezoidal guide structure.

[0031] The charging assembly output mechanism includes a starting motor 502 and an eccentric wheel 503 mechanism installed in the charging module housing 501. The eccentric wheel 503 mechanism includes an eccentric wheel 503 and a connecting frame 504 installed on the output shaft of the starting motor 502. The eccentric wheel 503 is arranged perpendicular to the top of the automatic charging module 5. The connecting frame 504 is fixed on the outer frame 505 of the assembly. The eccentric wheel 503 extends into the connecting frame 504. The upper and lower sides of the eccentric wheel 503 contact the top plate of the connecting frame 504 and the top plate of the outer frame 505 of the assembly respectively. When the eccentric wheel 503 rotates around the output shaft that is not at the center of its own circle, it drives the connecting frame 504 and the outer frame 505 of the assembly to move up and down in the charging module housing 501. Since a retractable and rotatable movable positioning component 516 is used to abut and position with the charging interface 602, when the charging assembly needs to be retracted, there is no need for a complicated moving process, and the charging assembly can be directly moved upward.

[0032] When charging, the present solution firstly communicates with the control module in the control box 4 corresponding to the storage battery 3 to collect the remaining power of the built-in battery 605 in the inspection device 1, and sends a signal to prepare the inspection device 1 for charging if charging is required. The control module built into the inspection device 1 can also determine whether to charge based on the remaining power of its own built-in battery 605, and establish a wireless connection with the control box 4 of the adjacent storage battery 3 when charging is required, and determine to charge the next storage battery 3 passing by.

[0033] After the battery 3 to be charged is determined, the driving motor is started when it reaches the lower rear side of the corresponding automatic charging module 5 to drive the interface shield 603 to move upward, and at the same time drive the interface to rotate and tilt and extend. At this time, the charging component output mechanism is started, and the charging component is extended downward through the eccentric wheel 503 mechanism, and the guide groove 511 of the charging component is pressed onto the guide plate 604 of the interface shield 603. Due to the track limitation, the left and right deviation distance of the walking mechanism 6 is limited, so the size of the inlet of the guide groove 511 can be controlled to ensure that it can accommodate the guide plate 604, and the trapezoidal guide end 5111 at the front end of the guide groove 511 can guide the charging component to move left and right to match the position of the guide plate 604 through the forward movement of the walking mechanism 6. When the guide plate 604 reaches the middle of the charging assembly, i.e., the trapezoidal guide end 5111, the squeezing effect of the guide plate 604 on the guide groove 511 makes the charging assembly parallel to the guide plate 604, and the lower side of the charging interface 602 also squeezes the movable positioning component 516 to rotate the latter. If the rear end of the movable positioning component 516 abuts against the top of the running mechanism 6 during this process, the latter is retracted. Under normal circumstances, after the above-mentioned rotation and contraction process, the top of the movable positioning component 516 fits the lower side of the charging interface 602, so that the setting direction of the extension mechanism of the charging connector 513 is directly opposite to the charging interface 602, and the distance between the charging connector 513 and the charging interface 602 before extension is kept constant.

[0034] In the above situation, the walking mechanism 6 cannot move forward. After receiving the feedback signal from the pressure sensor, the walking mechanism 6 stops, and the charging connector 513 extension mechanism starts the linear drive device 517 to extend the charging connector 513. Since the linear drive device 517 is also extended at an angle, the plugging force acting on the interface is inclined downward. Therefore, before the plugging is tightened, the charging connector 513 will not push the walking mechanism 6 to move backward if it cannot move backward horizontally. The positioning convex strip 5162 abuts against the front end of the positioning slide 6021 during the plugging process, which not only limits the distance from the charging interface 602 to the linear drive device 517 to be constant, but also limits the backward movement of the charging interface 602. Therefore, this solution can reliably allow the charging connector 513 and the charging interface 602 to be plugged in tightly. After being fully connected, the storage battery 3 starts to charge the built-in battery 605. The linear drive device 517 can be a drive device such as an electric cylinder, a linear module, etc. that drives the charging connector 513 to move backward and extend.

[0035] After charging is completed, the connection between the charging connector 513 and the charging interface 602 is released, and the linear drive device 517 runs in reverse to retract the charging connector 513. The movable positioning component 516 is again pressed against the top of the walking mechanism 6 by the telescopic spring 514, and then the charging component output mechanism runs to directly move the charging component upward. Since the positioning shaft is below the extended end of the charging interface 602, this process will push the walking mechanism 6 backward until the upper end of the charging interface 602 pushes down the rear side of the positioning shaft to drive the movable positioning component 516 to rotate. The movable positioning component 516 rotates downward and extends outward until the movable positioning component 516 extends to the initial length and is blocked by the limiting structure of the hinged bottom plate 515. The movable positioning component 516 begins to rotate and rise. When the movable positioning component 516 is separated from the charging interface 602, the retraction of the charging structure is completed, and the hinged bottom plate 515 is restored to a horizontal state again under the gravity of the charging connector 513 extension mechanism. The walking mechanism 6 retracts the interface shield 603 and can move forward again to continue the inspection.

[0036] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the inventive concept and technical solution of the present invention, or the inventive concept and technical solution are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A power supply device for a bridge inspection system, characterized in that: The invention comprises a storage battery (3) connected to a photovoltaic assembly (2) and receiving power from the photovoltaic assembly (2), a control box (4), an automatic charging module (5), and a charging interface (602) assembly arranged on the inspection device (1); the automatic charging module (5) is connected to the storage battery (3) and the control box (4), receiving power from the storage battery (3) and being controlled by the control box (4); the automatic charging module (5) comprises a charging module housing (501) and a charging assembly movably connected to the charging module housing (501) via an elastic element; the charging assembly comprises an assembly housing (508), a guide groove (511), a positioning structure, and a charging connector (513) extension mechanism; the charging interface (602) assembly comprises an interface shield (603) that can move up and down in a walking mechanism (6) of the inspection device (1) under the action of a driving mechanism, and a charging interface connected to the interface shield (603) (602), after the interface shield (603) is raised, the charging interface (602) is tilted and extended upward, and the guide groove (511) is used to cooperate with the guide plate (604) on the top of the interface shield (603) to guide the charging interface (602) to move toward the positioning structure, and the positioning structure includes a movable positioning component (516) positioned and abutted with the extended end of the charging interface (602), the movable positioning component (516) is abutted and rotated by the charging interface (602) and abutted and retracted by the top of the walking trolley shell (601) of the inspection device (1), and the charging connector (513) extension mechanism is installed on the movable positioning component (516), and after the movable positioning component (516) is abutted and fitted with the charging interface (602), the setting direction of the charging connector (513) extension mechanism is directly opposite to the charging interface (602); The positioning structure comprises a mounting groove (510) arranged at the front side of the bottom of the component housing (508) and a hinged bottom plate (515) hinged in the mounting groove (510); the movable positioning component (516) is mounted on the hinged bottom plate (515); the rear end of the movable positioning component (516) extends backward from the hinged bottom plate (515); the hinged bottom plate (515) is hinged to the side of the mounting groove (510) through a positioning shaft; the charging connector (513) extension mechanism is located in front of the positioning shaft in an initial state; the front end of the mounting groove (510) is closed and can support the front end of the hinged bottom plate (515); The positioning structure also includes a telescopic spring (514); the movable positioning component (516) is a slide plate structure slidably mounted on the hinged bottom plate (515); a vertical portion 1 (5161) is vertically arranged at the front end of the movable positioning component (516); a vertical portion 2 (5151) is vertically arranged at the front end of the hinged bottom plate (515); the vertical portion 1 (5161) and the vertical portion 2 (5151) are connected via a telescopic spring (514); and the rear end of the movable positioning component (516) abuts against the top of the walking mechanism (6) when the movable positioning component (516) is attached to the charging interface (602); The automatic charging module (5) also includes an assembly outer frame (505) arranged in the charging shell, an assembly upper seat (507) and a charging assembly output mechanism, the charging assembly output mechanism includes a starting motor (502) and an eccentric wheel (503) mechanism installed in the charging module shell (501), the eccentric wheel (503) mechanism includes an eccentric wheel (503) and a connecting frame (504) installed on the output shaft of the starting motor (502), the eccentric wheel (503) is arranged perpendicular to the top of the automatic charging module (5), the connecting frame (504) is fixed on the assembly outer frame (505), the eccentric wheel (503) extends into the connecting frame (504), and the upper and lower sides of the eccentric wheel (503) respectively contact the top plate of the connecting frame (504) and the top plate of the assembly outer frame (505).

2. The power supply equipment of the bridge inspection system according to claim 1 is characterized in that: The rear portion of the movable positioning component (516) that can be attached to the top surface of the charging interface (602) is provided with a positioning convex strip (5161), and the corresponding lower surface of the charging interface (602) is also provided with a positioning slideway (6021) with closed front and rear ends; when the movable positioning component (516) is attached to the charging interface (602), the positioning convex strip (5161) is inserted into the positioning slideway (6021) and is loosely matched with the positioning slideway (6021); when the linear drive device (517) drives the charging connector (513) to be inserted into the charging interface (602), the front end of the positioning slideway (6021) abuts against the positioning convex strip (5161) to prevent the movable positioning component (516) from moving forward.

3. The power supply equipment of the bridge inspection system according to claim 1 is characterized by: The elastic element includes an elastic telescopic member (512), and the charging component is slidably inserted into the opening at the bottom of the component upper base (507). The component upper base (507) is connected to the component outer frame (505) through the elastic telescopic members (512) on the left and right sides, and can slide left and right inside the component outer frame (505).

4. The power supply equipment of the bridge inspection system according to claim 3 is characterized by: The elastic element further comprises a vertical spring (506), the upper base (507) of the component is connected to the charging component via the vertical spring (506), and a plurality of vertical springs (506) are evenly arranged along the outer edge of the inner top of the upper base (507) of the component.

5. The power supply equipment of the bridge inspection system according to claim 1, characterized in that: The interface shield (603) is vertically slidably connected to the traveling trolley shell (601) of the inspection device (1); an interface groove for the interface shield (603) to extend out is provided on the traveling trolley shell (601); a guide plate (604) with a trapezoidal guide end (5111) at the rear end is provided on the top of the interface shield (603); the top surface of the guide plate (604) is parallel to the top of the traveling mechanism (6); the top surface shape of the guide end is adapted to the trapezoidal guide end (5111) of the guide groove (511); and the opening size of the trapezoidal guide end (5111) toward the positioning structure is smaller than the opening size of the other end.

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