An engineering cable tunnel inspection device

Abstract

The application discloses an engineering cable tunnel inspection device and relates to the technical field of cable inspection.The left-right moving system, the rotating assembly, the lifting assembly, the extending assembly and the air suction assembly are cooperated with each other, so that the cable trench and the drainage groove at the bottom of the cable tunnel and other parts can be fully detected, the accumulation of hydrogen sulfide gas, methane gas and other gases is prevented, the air suction head can be accurately sent to the inner side of the cable trench, the bottom of the drainage groove, the equipment gap and any low depression, these dead angles are most likely to accumulate heavy gas or leak light gas, the poisoning, fire and explosion risks caused by the accumulation of hydrogen sulfide, methane and other dangerous gases are fundamentally effectively prevented, the air suction thin tube, which is a thinner and smaller probe, is further extended downwards by several centimeters to several tens of centimeters, directly penetrates into the deepest part of the groove and collects the most representative high-concentration gas sample, and the accuracy and authenticity of detection are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of cable inspection technology, specifically to a cable tunnel inspection device for engineering applications. Background Technology

[0002] The rail-mounted inspection robot integrates multiple types of gas sensors and intelligent algorithms to achieve real-time monitoring and risk warning of the gas environment in cable tunnels. It uses catalytic combustion or infrared sensors to monitor the concentration of flammable gases such as methane and hydrogen to prevent explosion risks. Equipped with electrochemical sensors, it detects toxic gases such as hydrogen sulfide and carbon monoxide to ensure personnel safety. Through electrochemical oxygen sensors, it can detect local high temperatures caused by cable aging, overload, or equipment failure in cable tunnels, leading to the accumulation of flammable gases. By monitoring gas concentration in real time and combining infrared thermal imaging technology, the robot can detect overheating hazards in advance and avoid fire or explosion accidents. Since there may be toxic gases such as hydrogen sulfide and carbon monoxide in the tunnel, manual inspection carries the risk of poisoning. The robot can replace personnel to enter high-risk areas and monitor the concentration of toxic gases in real time.

[0003] If there is sewage leakage or organic matter accumulation in the tunnel, such as aging debris of cable insulation or animal carcasses, sulfate-reducing bacteria will decompose the organic matter in an anaerobic environment, reducing sulfate to hydrogen sulfide. In addition, sulfur-containing strata release hydrogen sulfide through thermochemical reduction reactions under the action of groundwater seepage. In waterlogged or humid environments inside the tunnel, organic matter is decomposed by microorganisms under anaerobic conditions, producing methane. Cable trenches and drainage ditches are usually long and narrow, closed or semi-closed structures with poor ventilation, making it difficult for gas to diffuse naturally, while low-lying areas become gas accumulation sites.

[0004] Traditional track-mounted robot tracks are mostly deployed at the top or middle of tunnels, while cable trenches and drainage channels are located in low-lying areas at the bottom of tunnels. Due to the height limitations of the track, the robot cannot directly approach these areas, resulting in gas sensors being unable to effectively collect gases such as hydrogen sulfide and methane accumulated in the trenches. Summary of the Invention

[0005] Technical problems to be solved

[0006] This invention provides a cable tunnel inspection device for engineering applications, which solves the problems associated with cable tunnel inspection devices for engineering applications.

[0007] Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution: an engineering cable tunnel inspection device, comprising a robot track and a rail-mounted inspection robot movably mounted on the outer surface of the robot track, wherein a left-right moving system is mounted on the bottom surface of the rail-mounted inspection robot, a rotating component is mounted on the top surface of the left-right moving system, an air suction component is mounted on the bottom surface of the rotating component, a lifting component is mounted on the outer surface of the air suction component, and an extension component is mounted on the outer surface of the lifting component. The extension assembly includes an air intake head and a second air vent. The air intake head is installed on the outer surface of the lifting assembly. The second air vent is opened inside the air intake head. The first air intake hole is evenly distributed inside the air intake head. A battery box assembly is installed inside the air intake head. A fixing post is installed inside the air intake head. An electromagnet is installed inside the fixing post. A movable groove is opened inside the fixing post. A limit post is installed on the inner wall of the movable groove. A connecting spring is installed on the inner wall of the movable groove. A magnetic limiting plate is installed on one end surface of the connecting spring. The outer surface of the magnetic limiting plate is in movable contact with the inner wall of the movable groove. A suction tube is installed on one end surface of the magnetic limiting plate. The outer surface of the suction tube is in movable contact with the inner wall of the movable groove. A third air vent is opened inside the magnetic limiting plate. The second air intake hole is evenly distributed on the outer surface of the suction tube. The left and right moving system facilitates changing the position of the suction head, the suction component and the lifting component facilitate the suction of hydrogen sulfide gas at the bottom of the cable tunnel through the suction head, and the extension component facilitates the suction of harmful gases at corners and low-lying areas.

[0009] Furthermore, the rotating assembly includes a servo turntable and a limiting outer ring. The servo turntable is mounted on the bottom surface of the left and right moving system, the limiting outer ring is mounted on the bottom surface of the left and right moving system, and a stabilizing ring is mounted on the bottom surface of the servo turntable.

[0010] Furthermore, a plurality of ball shafts are evenly and movably mounted on the bottom surface of the stabilizing ring, the outer surfaces of the plurality of ball shafts are in movable contact with the inner surface of the limiting outer ring, the outer surface of the stabilizing ring is in movable contact with the inner surface of the limiting outer ring, and a detection protective shell is mounted on the bottom surface of the stabilizing ring.

[0011] Furthermore, the suction assembly includes a suction housing and a stepper motor. The suction housing is installed inside the detection protective housing, and the stepper motor is installed inside the detection protective housing. A rotating shaft is installed on the outer surface of the output end of the stepper motor, and a main bevel gear is installed on one end surface of the rotating shaft.

[0012] Furthermore, a rotating column is movably installed inside the air intake housing. One end surface of the rotating column extends to the outside of the air intake housing. A driven bevel gear is installed on one end surface of the rotating column. The outer surface of the driven bevel gear meshes with the outer surface of the main bevel gear. A fan blade is installed on the outer surface of the rotating column. An air inlet pipe is installed on the outer surface of the air intake housing. An air outlet pipe is installed on the outer surface of the air intake housing.

[0013] Furthermore, the lifting assembly includes a second stepper motor and a winding shaft. The second stepper motor is installed inside the detection protective housing. The winding shaft is installed on the outer surface of the output end of the second stepper motor, and a venting collar is installed on the outer surface of the winding shaft.

[0014] Furthermore, a sealing ring is movably installed on the outer surface of the venting ring, the inner surface of the sealing ring is fixedly connected to the outer surface of the air inlet pipe, and an arc-shaped connecting pipe is installed on one end surface of the venting ring, with a venting groove opened inside the arc-shaped connecting pipe.

[0015] Furthermore, a flexible tube is installed on the inner surface of the arc-shaped connector, and the outer surface of the flexible tube is in movable contact with the outer surface of the winding shaft.

[0016] Furthermore, a main drive wheel is mounted on the outer surface of the winding shaft, a ball screw is movably mounted inside the detection protective shell, a driven drive wheel is mounted on the outer surface of the ball screw, a belt is movably mounted on the outer surface of the main drive wheel and the outer surface of the driven drive wheel, two screw sliders are movably mounted on the outer surface of the ball screw, a limit platform is mounted on the outer surface of the two screw sliders, and the inner surface of the limit platform is in contact with the outer surface of the hose.

[0017] Furthermore, a limiting groove is provided inside the detection protective shell, and the inner wall of the limiting groove is in movable contact with the outer surface of the limiting platform. One end surface of the hose is fixedly connected to the inner surface of the suction head. Beneficial effects

[0018] The present invention has the following beneficial effects: (1) The cable tunnel inspection device used in this project, through the cooperation of the left and right moving system, rotating components, lifting components, extension components and suction components, facilitates the full inspection of cable trenches and drainage channels at the bottom of the cable tunnel, preventing the accumulation of gases such as hydrogen sulfide and methane. The suction head accurately delivers to the inside of the cable trench, the bottom of the drainage channel, equipment gaps, and any low-lying depressions, which are the most likely dead corners to accumulate heavy gas or leak light gas, fundamentally and effectively preventing the risk of poisoning, fire and explosion caused by the accumulation of dangerous gases such as hydrogen sulfide and methane; (2) The cable tunnel inspection device used in this project uses a magnetic limiting plate to drive the suction tube to extend outward, which facilitates the intake of gas deep in the cable trench or drainage ditch. This allows the thinner and smaller probe of the suction tube to extend downward by several centimeters to tens of centimeters, directly reaching the deepest part of the trench to collect the most representative high-concentration gas sample, greatly improving the accuracy and authenticity of the detection. When the detection is completed, the current of the electromagnet is disconnected and the magnetic force disappears. At this time, the compressed connecting spring will naturally release its elasticity, pulling the magnetic limiting plate and the suction tube back to the initial position, preparing for the next detection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the rotating component of the present invention; Figure 4 This is a schematic diagram of the internal structure of the air intake component of the present invention; Figure 5 This is a schematic diagram of the internal structure of the air intake component of the present invention from another perspective; Figure 6 This is a schematic diagram of the overall structure of the lifting component of the present invention; Figure 7 This is a schematic diagram of the internal structure of the lifting component of the present invention; Figure 8 This is a schematic diagram of the internal structure of the extended component of the present invention; Figure 9 This is a schematic diagram of the internal structure of the extended component of the present invention from another perspective.

[0020] In the diagram: 1. Robot track; 2. Rail-mounted inspection robot; 3. Left and right movement system; 4. Rotary assembly; 401. Servo turntable; 402. Limiting outer ring; 403. Stabilizing ring; 404. Ball shaft; 405. Detection protective shell; 5. Intake assembly; 501. Stepper motor 1; 502. Rotating shaft; 503. Main bevel gear; 504. Driven bevel gear; 505. Rotating column; 506. Fan blade; 507. Inlet duct; 508. Outlet duct; 509. Intake housing; 6. Lifting assembly; 601. Stepper motor II; 602. Winding shaft; 603. Main drive wheel; 604. Driven wheel; 605. Belt; 606. Sealing collar; 607. Vent collar; 608. Arc-shaped connecting pipe; 609. Vent groove I; 610. Flexible hose; 611. Lead screw and slider; 612. Ball screw; 613. Limiting platform; 614. Limiting groove; 7. Extension components; 701. Suction head; 702. Suction hole one; 703. Ventilation slot two; 704. Electromagnet; 705. Battery box assembly; 706. Fixing post; 707. Limiting post; 708. Connecting spring; 709. Magnetic limiting piece; 710. Movable slot; 711. Ventilation slot three; 712. Suction hole two; 713. Suction tube. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0023] Please see Figures 1-9 The present invention provides a technical solution: an engineering cable tunnel inspection device, including a robot track 1 and a rail-mounted inspection robot 2 movably mounted on the outer surface of the robot track 1. The bottom surface of the rail-mounted inspection robot 2 is equipped with a left-right moving system 3, the top surface of the left-right moving system 3 is equipped with a rotating component 4, the bottom surface of the rotating component 4 is equipped with a suction component 5, the outer surface of the suction component 5 is equipped with a lifting component 6, and the outer surface of the lifting component 6 is equipped with an extension component 7. The extension assembly 7 includes an air intake head 701 and a second air vent 703. The air intake head 701 is installed on the outer surface of the lifting assembly 6. The second air vent 703 is provided inside the air intake head 701. Air intake holes 702 are evenly distributed inside the air intake head 701. A battery box assembly 705 is installed inside the air intake head 701. A fixing post 706 is installed inside the air intake head 701. An electromagnet 704 is installed inside the fixing post 706. A movable groove 710 is provided inside the fixing post 706. A limit post is installed on the inner wall of the movable groove 710. 707. A connecting spring 708 is installed on the inner wall of the movable groove 710. A magnetic limiting plate 709 is installed on one end surface of the connecting spring 708. The outer surface of the magnetic limiting plate 709 is in contact with the inner wall of the movable groove 710. A suction tube 713 is installed on one end surface of the magnetic limiting plate 709. The outer surface of the suction tube 713 is in contact with the inner wall of the movable groove 710. A ventilation groove 711 is opened inside the magnetic limiting plate 709. Suction holes 712 are evenly distributed on the outer surface of the suction tube 713. The left-right movement system 3 facilitates changing the position of the suction head 701. The suction assembly 5 and lifting assembly 6 facilitate the intake of hydrogen sulfide gas from the bottom of the cable tunnel through the suction head 701. The extension assembly 7 facilitates the intake of harmful gases from corners and low-lying areas. The magnetic limiting plate 709 drives the suction tube 713 to extend outward, thereby facilitating the intake of gas deep in the cable trench or drainage ditch. This allows the thinner and smaller probe, the suction tube 713, to extend downward by several centimeters to tens of centimeters, directly reaching the deepest part of the trench to collect the most representative high-concentration gas sample, greatly improving the accuracy and reliability of the detection. When the detection is completed, the current to the electromagnet 704 is disconnected, and the magnetic force disappears. When the compressed connecting spring 708 is in use, it will naturally release its elasticity, pulling the magnetic limit plate 709 and the suction tube 713 back to their initial positions, preparing for the next inspection. Through the cooperation of the left and right moving system 3, the rotating component 4, the lifting component 6, the extension component 7, and the suction component 5, it is convenient to conduct thorough inspections of cable trenches and drainage channels at the bottom of cable tunnels, preventing the accumulation of gases such as hydrogen sulfide and methane. The suction head 701 accurately delivers the gas to the inside of the cable trench, the bottom of the drainage channel, equipment gaps, and any low-lying depressions, which are the most likely dead spots to accumulate heavy gases or leak light gases. This fundamentally and effectively prevents the risks of poisoning, fire, and explosion caused by the accumulation of dangerous gases such as hydrogen sulfide and methane.

[0024] The rotating assembly 4 includes a servo turntable 401 and a limiting outer ring 402. The servo turntable 401 is mounted on the bottom surface of the left-right moving system 3, and the limiting outer ring 402 is also mounted on the bottom surface of the left-right moving system 3. A stabilizing ring 403 is mounted on the bottom surface of the servo turntable 401. Several ball shafts 404 are evenly distributed and movably mounted on the bottom surface of the stabilizing ring 403. The outer surfaces of the ball shafts 404 are in movable contact with the inner surfaces of the limiting outer ring 402, and the outer surfaces of the stabilizing ring 403 are in movable contact with the inner surfaces of the limiting outer ring 402. A detection protective shell 405 is mounted on the bottom surface of the stabilizing ring 403. The left-right moving system 3 drives the suction head 701 to deviate in position. The left and right movement system 3 belongs to the existing ball screw movement technology field and will not be explained in detail. The servo turntable 401 drives the stabilizing ring 403 to rotate. The stabilizing ring 403 drives several ball shafts 404 to rotate within the limiting outer ring 402, thereby causing the stabilizing ring 403 to drive the detection protective shell 405 to deflect at an angle, which in turn drives the suction head 701 to deflect at an angle, so that the suction head 701 can be stably and accurately placed at the low point of the cable tunnel. The rail-mounted robot moves along the track at the top of the tunnel, and the suction head 701 extends vertically downward to the low point of the tunnel through the lifting component 6, and is placed in the cable trench or drainage ditch, covering the area that is difficult to reach by traditional inspection.

[0025] The suction assembly 5 includes a suction housing 509 and a stepper motor 501. The suction housing 509 is installed inside the detection protective housing 405. The stepper motor 501 is installed inside the detection protective housing 405. A rotating shaft 502 is mounted on the outer surface of the output end of the stepper motor 501. A main bevel gear 503 is mounted on one end surface of the rotating shaft 502. A rotating column 505 is movably installed inside the suction housing 509. One end surface of the rotating column 505 extends to the outside of the suction housing 509. One end surface of the rotating column 505 is equipped with a bevel gear 504, the outer surface of which meshes with the outer surface of the main bevel gear 503. A fan blade 506 is mounted on the outer surface of the rotating column 505. An air inlet pipe 507 is mounted on the outer surface of the suction housing 509, and an air outlet pipe 508 is mounted on the outer surface of the suction housing 509. The fan blade 506 rotates at high speed, causing gas to pass through several suction holes 702 of the suction head 701 and several suction holes 71 of the suction pipe 713. 2. Gas enters through several suction holes 712 into the suction tube 713, then through the ventilation groove 711 into the magnetic limiting plate 709. A through hole is formed in the fixing post 706, allowing the gas to enter the flexible hose 610 through the ventilation groove 703 of the suction head 701. Finally, the gas enters the ventilation ring 607 through the ventilation groove 609 of the arc-shaped connecting pipe 608, then through the sealing ring 606 and the air inlet pipe 507 into the suction housing 509, and finally into the air outlet pipe 508. The exhaust duct 508 is equipped with a detection module and the outlet is filled with a large amount of activated carbon particles and molecular sieves. The detection module uses an electrochemical sensor and a catalytic combustion sensor, combined with a temperature compensation circuit, to eliminate the influence of ambient temperature on the sensor output, thereby facilitating gas detection. The exhaust duct 508 is equipped with activated carbon and molecular sieves, which can adsorb harmful substances after gas detection and then discharge the exhaust gas, preventing harmful gases from corroding the precision components on the outside of the rail-mounted inspection robot 2 and extending the service life of the equipment.

[0026] The lifting assembly 6 includes a second stepper motor 601 and a winding shaft 602. The second stepper motor 601 is installed inside the detection protective housing 405. The winding shaft 602 is mounted on the outer surface of the output end of the second stepper motor 601. A venting collar 607 is mounted on the outer surface of the winding shaft 602. A sealing collar 606 is movably mounted on the outer surface of the venting collar 607. The inner surface of the sealing collar 606 is fixedly connected to the outer surface of the air inlet pipe 507. An arc-shaped connecting pipe 608 is mounted on one end surface of the venting collar 607. A venting groove 609 is opened inside the arc-shaped connecting pipe 608. A flexible hose 610 is mounted on the inner surface of the arc-shaped connecting pipe 608. The outer surface of the flexible hose 610 is in movable contact with the outer surface of the winding shaft 602. A main drive wheel 603 is mounted on the outer surface of the winding shaft 602. A ball screw 612 is movably mounted inside the detection protective housing 405. A main drive wheel 603 is mounted on the outer surface of the ball screw 612. A belt 605 is movably mounted on the outer surface of the drive wheel 604 and the outer surface of the main drive wheel 603. Two screw sliders 611 are movably mounted on the outer surface of the ball screw 612. A limit platform 613 is mounted on the outer surface of the two screw sliders 611. The inner surface of the limit platform 613 is in contact with the outer surface of the hose 610. A limit groove 614 is opened inside the detection protective shell 405. The inner wall of the limit groove 614 is in contact with the outer surface of the limit platform 613. One end of the hose 610 is fixedly connected to the inner surface of the suction head 701, so that the suction head 701 moves downward stably. The axis of the winding shaft 602 is arranged parallel to the axis of the ball screw 612. The moving direction of the limit platform 613 is coplanar with the direction of the hose 610 falling off, eliminating the trajectory deviation caused by the angle deviation, so that the suction head 701 descends stably.

[0027] The specific workflow of this invention is as follows: When a cable tunnel needs to be inspected, the rail-mounted inspection robot 2 moves on the robot track 1. When the rail-mounted inspection robot 2 needs to perform gas detection at the lower part of the cable tunnel, the operator remotely controls the stepper motor 601 via a controller. The stepper motor 601 drives the winding shaft 602 to rotate, which in turn drives the venting sleeve 607 and the arc-shaped connector 608 to rotate. The venting sleeve 607 rotates within the sealing sleeve 606. During this rotation, the venting sleeve 607 achieves dynamic sealing through the O-ring, preventing the intake gas from escaping. The arc-shaped connector 608 is fixedly connected to the hose 610, thus ensuring the gas is properly wound around the winding shaft. The flexible hoses 610 on the column detach sequentially, and the winding shaft 602 synchronously drives the main drive wheel 603 to rotate. The main drive wheel 603 synchronously drives the driven wheel 604 to rotate via the belt 605. The driven wheel 604 drives the ball screw 612 to rotate. The ball screw 612 drives the screw slider 611 to move. The screw slider 611 drives the limiting platform 613 to move stably within the limiting groove 614, thereby causing the suction head 701 to move stably downward. The axis of the winding shaft 602 is arranged parallel to the axis of the ball screw 612. The moving direction of the limiting platform 613 is coplanar with the direction of detachment of the flexible hoses 610, eliminating the trajectory deviation caused by the angle deviation, thereby causing the suction head 701 to descend stably. When the suction head 701 has descended to its final height...

[0028] The left and right movement system 3 drives the suction head 701 to shift its position. The left and right movement system 3 belongs to the existing ball screw movement technology field and will not be explained in detail. The servo turntable 401 drives the stabilizing ring 403 to rotate. The stabilizing ring 403 drives several ball shafts 404 to rotate within the limiting outer ring 402, thereby causing the stabilizing ring 403 to drive the detection protective shell 405 to deflect at an angle, thereby causing the suction head 701 to deflect at an angle. This allows the suction head 701 to be stably and accurately oriented and placed at the low point of the cable tunnel. The rail-mounted robot moves along the track at the top of the tunnel. The suction head 701 extends vertically downward to the low point of the tunnel through the lifting component 6 and is placed in the cable trench or drainage ditch, covering the area that is difficult to reach by traditional inspection.

[0029] The controller controls the stepper motor 501 to rotate, which in turn drives the rotating shaft 502 to rotate. The rotating shaft 502 then drives the main bevel gear 503 to rotate. The outer surface of the main bevel gear 503 meshes with the outer surface of the driven bevel gear 504, causing the driven bevel gear 504 to drive the rotating column 505 to rotate. This, in turn, drives the fan blade 506 to rotate at high speed. This high-speed rotation of the fan blade 506 allows gas to enter through several suction holes 702 in the suction head 701 and several suction holes 712 in the suction tube 713. The gas then enters the suction tube 713 through the suction holes 712, and then through the ventilation groove 711 into the magnetic limiting plate 709. A through hole is also provided in the fixing column 706. The gas enters the hose 610 through the second ventilation slot 703 of the suction head 701, and finally enters the ventilation ring 607 through the first ventilation slot 609 of the arc-shaped connector 608. It then enters the suction housing 509 through the sealing ring 606 and the air inlet pipe 507, and finally enters the exhaust pipe 508. The exhaust pipe 508 is equipped with a detection module and the outlet is filled with a large amount of activated carbon particles and molecular sieves. The detection module uses an electrochemical sensor and a catalytic combustion sensor, combined with a temperature compensation circuit, to eliminate the influence of ambient temperature on the sensor output, thus facilitating gas detection. The activated carbon and molecular sieves in the exhaust pipe 508 can adsorb harmful substances after gas detection before discharging the exhaust gas, preventing harmful gases from corroding the precision components on the outside of the rail-mounted inspection robot 2 and extending the equipment's service life.

[0030] When it is necessary to inspect the depth of cable trenches or drainage channels, the controller controls the electromagnet 704 to be energized. After being energized, the electromagnet 704 becomes magnetic. The magnetic limiting plate 709 is made of magnetic material, and its magnetic properties are the same as those of the corresponding electromagnet 704. This creates a repulsive force between the magnetic limiting plate 709 and the electromagnet 704, causing the magnetic limiting plate 709 to move the connecting spring 708 within the movable groove 710. The limiting post 707 limits the movement of the connecting spring 708, and the magnetic limiting plate 709 drives the suction tube 713 to... The probe extends outwards, facilitating the intake of gas deep within cable trenches or drainage troughs. This allows the finer, smaller probe, the suction tube 713, to extend downwards by several centimeters to tens of centimeters, directly reaching the deepest part of the trench to collect the most representative high-concentration gas samples. This greatly improves the accuracy and reliability of the detection. Once the detection is complete and the current to the electromagnet 704 is disconnected, the magnetic force disappears. At this point, the compressed connecting spring 708 will naturally release its elasticity, pulling the magnetic limiting plate 709 and the suction tube 713 back to their initial positions, preparing for the next detection.

[0031] The left-right moving system 3, rotating component 4, lifting component 6, extension component 7, and suction component 5 work together to facilitate thorough inspection of cable trenches and drainage channels at the bottom of cable tunnels, preventing the accumulation of gases such as hydrogen sulfide and methane. The suction head 701 precisely delivers the gas to the inside of cable trenches, the bottom of drainage channels, equipment gaps, and any low-lying depressions—these are the most likely places for heavy gases to accumulate or for light gases to leak. This effectively prevents the risks of poisoning, fire, and explosion caused by the accumulation of dangerous gases such as hydrogen sulfide and methane.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An engineering cable tunnel inspection device, comprising a robot track (1) and a rail-mounted inspection robot (2) movably mounted on the outer surface of the robot track (1), characterized in that: The bottom surface of the rail-mounted inspection robot (2) is equipped with a left-right moving system (3), the top surface of the left-right moving system (3) is equipped with a rotating component (4), the bottom surface of the rotating component (4) is equipped with an air suction component (5), the outer surface of the air suction component (5) is equipped with a lifting component (6), and the outer surface of the lifting component (6) is equipped with an extension component (7). The extension assembly (7) includes an air intake head (701) and a second ventilation slot (703). The air intake head (701) is installed on the outer surface of the lifting assembly (6). The second ventilation slot (703) is provided inside the air intake head (701). The air intake head (701) has evenly distributed air intake holes (702) inside. A battery box assembly (705) is installed inside the air intake head (701). A fixing post (706) is installed inside the air intake head (701). An electromagnet (704) is installed inside the fixing post (706). A movable slot (710) is provided inside the fixing post (706). An electromagnet (704) is installed on the inner wall of the movable slot (710). A limiting post (707) is installed, and a connecting spring (708) is installed on the inner wall of the movable groove (710). A magnetic limiting plate (709) is installed on one end surface of the connecting spring (708). The outer surface of the magnetic limiting plate (709) is in contact with the inner wall of the movable groove (710). A suction tube (713) is installed on one end surface of the magnetic limiting plate (709). The outer surface of the suction tube (713) is in contact with the inner wall of the movable groove (710). A ventilation groove three (711) is opened inside the magnetic limiting plate (709). A suction hole two (712) is evenly distributed on the outer surface of the suction tube (713). The left and right moving system (3) facilitates changing the position of the suction head (701), the suction component (5) and the lifting component (6) facilitate the suction of hydrogen sulfide gas at the bottom of the cable tunnel through the suction head (701), and the extension component (7) facilitates the suction of harmful gases at corners and low-lying areas.

2. The cable tunnel inspection device for engineering applications according to claim 1, characterized in that: The rotating assembly (4) includes a servo turntable (401) and a limiting outer ring (402). The servo turntable (401) is mounted on the bottom surface of the left and right moving system (3). The limiting outer ring (402) is mounted on the bottom surface of the left and right moving system (3). A stabilizing ring (403) is mounted on the bottom surface of the servo turntable (401).

3. The cable tunnel inspection device for engineering applications according to claim 2, characterized in that: The bottom surface of the stabilizing ring (403) is evenly and movably mounted with a plurality of ball shafts (404), the outer surfaces of the plurality of ball shafts (404) are in movable contact with the inner surface of the limiting outer ring (402), the outer surface of the stabilizing ring (403) is in movable contact with the inner surface of the limiting outer ring (402), and a detection protective shell (405) is mounted on the bottom surface of the stabilizing ring (403).

4. The cable tunnel inspection device for engineering applications according to claim 1, characterized in that: The suction assembly (5) includes a suction housing (509) and a stepper motor (501). The suction housing (509) is installed inside the detection protective housing (405). The stepper motor (501) is installed inside the detection protective housing (405). A rotating shaft (502) is installed on the outer surface of the output end of the stepper motor (501). A main bevel gear (503) is installed on one end surface of the rotating shaft (502).

5. The cable tunnel inspection device for engineering applications according to claim 4, characterized in that: A rotating column (505) is movably installed inside the air intake housing (509). One end surface of the rotating column (505) extends to the outside of the air intake housing (509). A bevel gear (504) is installed on one end surface of the rotating column (505). The outer surface of the bevel gear (504) meshes with the outer surface of the main bevel gear (503). A fan blade (506) is installed on the outer surface of the rotating column (505). An air inlet pipe (507) is installed on the outer surface of the air intake housing (509). An air outlet pipe (508) is installed on the outer surface of the air intake housing (509).

6. The cable tunnel inspection device for engineering applications according to claim 1, characterized in that: The lifting assembly (6) includes a second stepper motor (601) and a winding shaft (602). The second stepper motor (601) is installed inside the detection protective shell (405). The winding shaft (602) is installed on the outer surface of the output end of the second stepper motor (601). A venting collar (607) is installed on the outer surface of the winding shaft (602).

7. The cable tunnel inspection device for engineering applications according to claim 6, characterized in that: A sealing ring (606) is movably installed on the outer surface of the venting ring (607). The inner surface of the sealing ring (606) is fixedly connected to the outer surface of the air inlet pipe (507). An arc-shaped pipe (608) is installed on one end surface of the venting ring (607). A venting groove (609) is opened inside the arc-shaped pipe (608).

8. The cable tunnel inspection device for engineering applications according to claim 7, characterized in that: The inner surface of the arc-shaped connector (608) is fitted with a flexible tube (610), and the outer surface of the flexible tube (610) is in active contact with the outer surface of the winding shaft (602).

9. The cable tunnel inspection device for engineering applications according to claim 8, characterized in that: A main drive wheel (603) is mounted on the outer surface of the winding shaft (602). A ball screw (612) is movably mounted inside the detection protective shell (405). A driven drive wheel (604) is mounted on the outer surface of the ball screw (612). A belt (605) is movably mounted on the outer surface of the main drive wheel (603) and the outer surface of the driven drive wheel (604). Two screw sliders (611) are movably mounted on the outer surface of the ball screw (612). A limiting platform (613) is mounted on the outer surface of the two screw sliders (611). The inner surface of the limiting platform (613) is in contact with the outer surface of the hose (610).

10. The cable tunnel inspection device for engineering applications according to claim 9, characterized in that: The detection protective shell (405) has a limiting groove (614) inside. The inner wall of the limiting groove (614) is in active contact with the outer surface of the limiting platform (613). One end of the hose (610) is fixedly connected to the inner surface of the suction head (701).

Images