A railway line inspection device

Abstract

This invention relates to the field of railway inspection technology and discloses a railway line inspection device, including a frame, a wheel frame, and rail wheels on the surface of the wheel frame. A device box is disposed on the surface of the frame, and an inspection camera is mounted on the surface of the device box. The device also includes a protective structure disposed on the surfaces of the frame and the device box. The protective structure includes a connecting plate fixedly connected to the surface of the device box, and a baffle A fixedly connected to the end of the connecting plate away from the device box. Furthermore, it includes a buffer assembly for cushioning impacts. The buffer assembly includes a rotating plate disposed on the surface of the frame, and the device box slides on the surface of the rotating plate. The device box is connected to the rotating plate via a spring, and a limiting rod passes through the spring. One end of the limiting rod is fixedly connected to the device box, and the other end is slidably connected to the rotating plate. This invention can improve the inspection safety and stability of railway inspection devices in low-visibility environments such as rain and fog.

Description

Technical Field

[0001] This invention relates to the field of railway inspection technology, specifically a railway line inspection device. Background Technology

[0002] The detection of foreign objects such as people, vehicles, and obstacles along railway lines is a key aspect of safe railway transportation in mining areas. With the deep integration of sensing technology and artificial intelligence, mobile railway inspection devices have developed into core technical equipment to ensure the safety of railway lines.

[0003] Mobile inspection devices include integrated inspection trains, inspection robots, and drones. Among them, mobile inspection robots can move and inspect along tracks. For example, the track inspection device disclosed in the invention patent with announcement number CN114074689A has the advantages of smooth track movement and high inspection accuracy. Mobile track inspection devices significantly improve inspection efficiency and quality, and gradually replace the traditional manual inspection mode.

[0004] The applicant discovered that the aforementioned patented technologies have the following problems: When existing mobile inspection devices operate in humid climates, frequent foggy weather, and poor visibility conditions, their core vision and laser detection systems will fail to varying degrees due to light scattering and absorption. This results in blurred images, sparse point clouds, and a sharp reduction in detection distance, significantly decreasing the detection performance for foreign objects encroaching on the track surface. Consequently, the mobile inspection devices may experience collisions or sensor damage due to their inability to stop in time. Summary of the Invention

[0005] The purpose of this invention is to provide a railway line inspection device to solve the problem that the inspection device is difficult to deal with foreign objects encroaching on the line under adverse conditions such as rain, fog and low visibility.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a railway line inspection device, comprising a frame, a wheel frame, and rail wheels on the surface of the wheel frame. A device box is provided on the surface of the frame, and an inspection camera is installed on the surface of the device box. The device also includes a protective structure disposed on the surfaces of the frame and the device box. The protective structure includes a connecting plate fixedly connected to the surface of the device box, and a baffle A is fixedly connected to the end of the connecting plate away from the device box. The device also includes a buffer component for buffering impacts.

[0007] The surface of baffle A is provided with an interception component, which includes two friction blocks fixedly connected to the surfaces of baffle A near the two sides. Each of the two friction blocks has a sliding groove on its opposite side, and a friction rod is slidably connected through the sliding groove. The two friction rods are connected by a buffer plate, and an interception net is provided between the two friction rods.

[0008] Furthermore, the friction rod is tightly damped and slidably connected to the inner wall of the groove, and the surface of the friction rod is provided with several friction rings to increase the sliding friction resistance, and the buffer plate is provided with several counterweights.

[0009] Preferably, the buffer assembly includes a rotating plate disposed on the surface of the frame, the device box slides on the surface of the rotating plate, and the device box is connected to the rotating plate by a spring. A limiting rod is inserted inside the spring, one end of the limiting rod is fixedly connected to the device box, and the other end is slidably connected to the rotating plate.

[0010] Preferably, a rotating shaft is fixedly connected to the surface of the rotating plate, and the rotating shaft is rotatably connected to the frame.

[0011] Preferably, the protective structure includes two fixed blocks fixedly connected to the surface of the frame, a movable plate sliding inside the fixed blocks, the movable plate being connected to the fixed blocks by a tension spring, and a baffle B fixedly connected to one end of the movable plate;

[0012] It also includes auxiliary components for obstacle avoidance.

[0013] The auxiliary component includes a slider fixedly connected to the bottom of the device box, a groove adapted to the slider is provided on the surface of the frame, an adjustment motor is fixedly connected to the bottom of the frame, a screw is fixedly connected to the output end of the adjustment motor, and the screw is threadedly connected to the slider.

[0014] Preferably, a pressure sensor is installed inside the baffle B, and the pressure sensor is electrically connected to the regulating motor.

[0015] Preferably, an auxiliary block is fixedly connected to the surface of the movable plate, and a synchronous wheel is rotatably connected to one side of the auxiliary block. A pressure sensor and a wheel speed sensor are installed inside the synchronous wheel.

[0016] Preferably, a flaw detection wheel is installed at the bottom of the wheel frame.

[0017] Preferably, a drive component adapted to the rail wheel is fixedly connected to the surface of the wheel frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention effectively addresses the intrusion of foreign objects onto the track at a physical level through the physical blocking of baffle A and the force-relieving effect of the buffer component. Furthermore, it adjusts the rear buffer angle of the device box and the inspection camera according to the position and angle of the foreign object, effectively protecting the device and its internal sensors in foggy weather inspection environments and improving safety.

[0020] This invention uses the sliding friction of the friction rod and friction block to offset the impact stress, and at the same time uses the interception net to intercept foreign objects during the impact, further improving the protection effect of the sensor and camera.

[0021] This invention uses two separate baffles B to buffer foreign objects from different locations in a timely manner, and adjusts the motor and screw to reverse the position of the device box, further improving the protection effect of the sensor and inspection camera when the sensor is not sensitive in foggy weather.

[0022] This invention uses a synchronous wheel, pressure sensor and wheel speed sensor to sense the travel status when the track is turning, and adjusts the position of the device box according to the turning status by adjusting the motor and screw, thereby adjusting the center of gravity of the device and improving the stability and safety of the device when turning on the track in foggy weather. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram illustrating the disassembled structure of the interception component and baffle A according to the present invention;

[0025] Figure 3 This is a top view schematic diagram illustrating the first embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the overall structure of the second embodiment of the present invention;

[0027] Figure 5 This is a front view diagram illustrating the second embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram illustrating the structure on the other side of the second embodiment of the present invention.

[0029] In the diagram: 1. Frame; 11. Wheel frame; 12. Rail wheel; 13. Drive component; 14. Flaw detection wheel; 2. Device box; 21. Inspection camera; 3. Rotating plate; 31. Rotating shaft; 32. Limiting rod; 321. Spring; 33. Connecting plate; 331. Baffle A; 34. Friction block; 341. Buffer plate; 342. Counterweight block; 343. Friction rod; 344. Friction ring; 345. Interception net; 4. Slider; 41. Adjusting motor; 411. Screw; 42. Fixing block; 421. Movable plate; 422. Tension spring; 423. Baffle B; 43. Auxiliary block; 431. Synchronous pulley. Detailed Implementation

[0030] 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.

[0031] To better understand the technical solution and working principle of this invention, a brief introduction to the necessity of railway track inspection under adverse weather conditions is given first: In some mountainous and rainy areas, frequent regional rainfall and fog are common adverse conditions. Continuous rainfall and humidity can exacerbate uncontrollable disasters such as ballast heave, slope collapse, rockfall at level crossings, and fallen trees, causing the safety risks of railway lines to increase exponentially. In such cases, railway track inspection is even more necessary and crucial. Currently, most conventional railway self-inspection devices are designed to operate in normal good weather. However, low visibility conditions such as rain and fog can limit and weaken the visual and laser detection systems of railway inspection devices, making it difficult for them to react promptly to foreign objects encroaching on the track and stop the train. Direct collisions with foreign objects can damage the inspection device itself, causing damage to its sensors or cameras, or even derailing the entire device, resulting in unnecessary losses. Furthermore, it limits the effective and continuous capability of railway track inspection under low visibility conditions.

[0032] Example 1:

[0033] This invention discloses a railway line inspection device, which is preferably used for track inspection in humid, rainy, and foggy weather and for monitoring railway tracks. This improves the ability of existing railway inspection devices to deal with foreign objects encroaching on the track when inspecting in humid, rainy, and foggy weather with insufficient visibility, and reduces the occurrence of problems such as collisions and sensor damage. Similarly, it can also be used for inspection and detection in normal weather conditions, making it more widely applicable.

[0034] Reference Figure 1-3As shown, the railway inspection device includes a frame 1, a wheel frame 11, and rail wheels 12 on the surface of the wheel frame 11. The frame 1 is used to be erected on the railway track, and two sets of wheel frames 11 are provided, which are fixed on both sides of the frame 1 respectively. The rail wheels 12 are rotatably connected to the surface of the wheel frame 11, which is used to directly contact the track and drive the wheel frame 11 and the frame 1 to move by rolling on the track. A device box 2 is provided on the surface of the frame 1, and an inspection camera 21 is installed on the surface of the device box 2. The inspection camera 21 is used to capture abnormal encroachment of people, vehicles, obstacles and other foreign objects along the railway line. The device box 2 is also equipped with a vibration sensor for monitoring abnormal vibration of the vehicle body and track abnormalities; a displacement meter for monitoring the vehicle's running path and mileage; environmental monitoring sensors and a signal transceiver module, etc. The environmental monitoring sensors include anemometers, rain gauges, seismographs, etc., for early warning of severe weather and natural disasters. The signal transceiver module is used to receive and send data to the control center to provide operators with real-time inspection status and abnormalities along the railway line.

[0035] It also includes a protective structure, installed on the surfaces of the frame 1 and the device box 2. The protective structure includes a connecting plate 33 fixedly connected to the surface of the device box 2. At least two connecting plates 33 should be provided, fixedly connected to the surface of the device box 2 by welding or bolting. A baffle A331 is fixedly connected to the end of the connecting plate 33 away from the device box 2. The baffle A331 is arc-shaped and has a certain degree of bending toughness. When it collides with a foreign object, it bends accordingly to offset part of the impact stress, and its width should be greater than or equal to the width of the frame 1. Both the connecting plate 33 and the baffle A331 are located on the surface of the frame 1. In the forward direction, it is used to block foreign objects that are difficult for sensors and cameras to detect on the track surface in foggy conditions, so as to prevent the entire device from being damaged by foreign objects. Specifically, when the railway inspection device is running on the rail, the baffle A331 located in its forward direction will first come into contact with foreign objects on or beside the railway. Under the thrust of the railway inspection device, the foreign objects will be pushed away from the rail, or the obstruction of the foreign objects will stop the entire railway inspection device from moving, thereby effectively protecting the inspection camera 21 and the sensors in the device box 2 located behind the baffle A331.

[0036] Furthermore, in this embodiment, an interception assembly is also provided on the surface of the baffle A331. The interception assembly includes two friction blocks 34 fixedly connected to the surfaces of the baffle A331 near the two sides. The friction blocks 34 are positioned on the baffle A331 near the running direction of the inspection device. Slide grooves are provided on opposite sides of the two friction blocks 34, and friction rods 343 are slidably connected through these grooves. The friction rods 343 are tightly and dampedly slidably connected to the inner wall of the slide grooves. The friction rods 343 are arc-shaped, and the slide grooves are also adapted to their shape as arc-shaped cavities. More specifically, the opening directions of the slide grooves on the surfaces of the two friction blocks 34 are opposite, thus allowing the friction rods 343 to move from the center of the baffle A331 towards its sides and be engaged in the slide grooves. 43 can also slide in the groove along its extension direction. The two friction rods 343 are connected by a buffer plate 341. Both ends of the buffer plate 341 are fixedly connected to the friction rods 343 by welding, snap-fit ​​connection or bolt fixing. The buffer plate 341 and the baffle A331 are similar in shape, set as arc, and have a certain bending toughness. Therefore, when the buffer plate 341 is bent, the friction rods 343 connected at both ends can be relatively close. Therefore, by means of bending the buffer plate 341 and reducing the distance between the two friction rods 343, the two friction rods 343 can be inserted into the grooves on the surface of the two friction blocks 34. An interception net 345 is set between the two friction rods 343. The interception net 345 can be made of woven steel wire mesh, synthetic fiber mesh, etc.

[0037] Specifically, under normal conditions, the buffer plate 341 is located away from the baffle A331. Therefore, when the buffer plate 341 first comes into contact with foreign objects on or along the railway track, under the relative action of the kinetic energy of the railway inspection device moving forward and the reaction force of the foreign objects, the buffer plate 341 is pushed towards the baffle A331. This allows the friction rods 343 to slide upward in the chute, bringing the buffer plate 341 closer to the baffle A331 and lifting the intercepting net 345 between the two friction rods 343 upward. During this process, since the friction rods 343 are tightly damped connected to the inner wall of the chute, the relative sliding of the two against static friction can effectively offset part of the impact kinetic energy, achieving a buffering effect. In addition, the two friction rods 343 lifting the intercepting net 345 can also effectively intercept falling rocks, branches, etc. that are easily splashed during the impact, preventing flying stones and other foreign objects from damaging the inspection camera 21 and device box 2 behind.

[0038] Please continue to refer to Figure 2-3As shown, the surface of the friction rod 343 is provided with several friction rings 344 for increasing sliding friction resistance. The friction rings 344 can be directly welded to the surface of the friction rod 343 or made of materials such as rubber rings to increase friction. By increasing the sliding friction through the friction rings 344, the impact stress offset during the impact is further enhanced during sliding. Several counterweights 342 are provided inside the buffer plate 341. The counterweights 342 are lead blocks, solid metal blocks, etc., used to increase the weight of the buffer plate 341, making it easier for it to fall and pull the friction rod 343 down the slide groove, so that the buffer plate 341 is in a state away from the baffle A331. Furthermore, when subjected to impact, the buffer plate 341 is more stable during impact because its weight is increased by the counterweights 342.

[0039] Furthermore, in this embodiment, the surface of the frame 1 is provided with a buffer assembly for further cushioning of impacts. The buffer assembly includes a rotating plate 3 disposed on the surface of the frame 1, the device box 2 slides on the surface of the rotating plate 3, and the device box 2 is connected to the rotating plate 3 via a spring 321. A limiting rod 32 passes through the spring 321. One end of the limiting rod 32 is fixedly connected to the device box 2, and the other end is slidably connected to the rotating plate 3. By setting the spring 321, the reaction force generated by the foreign object that comes into contact with the surface of the baffle A331 is offset and buffered by the contraction of the spring 321, and at the same time, the device box 2 is moved backward, effectively reducing the possibility of impact damage to the device box 2 and its internal sensors caused by the foreign object intrusion. The limiting rod 32 is used to limit the spring 321.

[0040] The rotating plate 3 has a rotating shaft 31 fixedly connected to its surface. The rotating shaft 31 is rotatably connected to the frame 1. The rotating plate 3 is rotatably connected to the frame 1 through the rotating shaft 31, so that the rotating plate 3 can drive the device box 2, the connecting plate 33 and the baffle A331 to rotate. This provides corresponding rotation protection for irregular or misaligned foreign objects, improving the flexibility of protection. At this time, the device box 2 will move backward in the direction away from the foreign object, improving the backward movement protection function of the device box 2. A torsion spring can also be set at the connection between the rotating shaft 31 and the frame 1. The two ends of the torsion spring are fixedly connected to the rotating shaft 31 and the frame 1 respectively, so that the rotating plate 3 can be returned to the correct position in time after rotation.

[0041] The wheel frame 11 is equipped with a flaw detection wheel 14 at the bottom. The flaw detection wheel 14 is equipped with a flaw detection radar and is in direct contact with the rail. It continuously detects flaws in the rail during rolling.

[0042] A drive component 13 adapted to the rail wheel 12 is fixedly connected to the surface of the wheel frame 11. The drive component 13 includes a drive motor and a reducer. The output end of the drive motor is connected to the input end of the reducer, and the output end of the reducer is directly connected to the rail wheel 12. Driven by the drive motor, the rail wheel 12 is driven to rotate on the rail surface, thereby moving the entire device.

[0043] Example 2:

[0044] This invention discloses a railway line inspection device, referring to... Figure 4-6 As shown, the system includes a frame 1, a wheel frame 11, and rail wheels 12 on the surface of the wheel frame 11. The frame 1 is used to be erected on the railway track, and two sets of wheel frames 11 are provided, which are fixed on both sides of the frame 1 respectively. The rail wheels 12 are rotatably connected to the surface of the wheel frame 11, which is used to directly contact the track and drive the wheel frame 11 and the frame 1 to move by rolling on the track. A device box 2 is provided on the surface of the frame 1, and an inspection camera 21 is installed on the surface of the device box 2. The inspection camera 21 is used to capture abnormal encroachment of people, vehicles, obstacles and other foreign objects along the railway line. The device box 2 is also equipped with vibration sensors for monitoring abnormal vibration of the vehicle body and track abnormalities, displacement gauges for monitoring the vehicle's running path and mileage, environmental monitoring sensors, and signal transceiver modules. Among them, the environmental monitoring sensors include anemometers, rain gauges, seismographs, etc., for early warning of severe weather and natural disasters. The signal transceiver module is used to receive and send data to the control center to provide operators with real-time inspection status and abnormalities along the railway line.

[0045] A protective structure is provided on the surface of the frame 1. Unlike Embodiment 1, the protective structure in this embodiment includes two fixed blocks 42 fixedly connected to the surface of the frame 1. A movable plate 421 slides within the fixed blocks 42. The movable plate 421 is connected to the fixed blocks 42 via a tension spring 422. The two ends of the tension spring 422 are fixedly connected to the movable plate 421 and the fixed blocks 42, respectively. A baffle B423 is fixedly connected to one end of the movable plate 421. The two baffles B423 are independently provided. Since there are two movable plates 421, there are also two baffles B423. The two baffles B423 are set independently of each other. The two baffles B423 can improve the flexibility and independence of the two baffles B423 in intercepting and buffering foreign object intrusion. When the device encounters an abnormal track intrusion that is difficult to detect during operation in foggy weather, the baffle B423 will first come into contact with the foreign object and collide with it. The reaction force will drive the movable plate 421 to move towards the frame 1 and stretch the tension spring 422. The tension spring 422 is used for buffering, thereby preventing the foreign object from directly hitting the device box 2 and damaging its internal sensors. It also includes auxiliary components for avoiding obstacles.

[0046] The device box 2 has an auxiliary component at its bottom, which includes a slider 4 fixedly connected to the bottom of the device box 2. The surface of the frame 1 has a groove that matches the slider 4. The device box 2 can slide and move horizontally in the groove by sliding the slider 4, and adjust the position of the device box 2 on the left and right sides of the frame 1. An adjustment motor 41 is fixedly connected to the bottom of the frame 1. The adjustment motor 41 is a servo motor. The output end of the adjustment motor 41 is fixedly connected to a screw 411. The screw 411 is threadedly connected to the slider 4. By adjusting the output of the adjustment motor 41, the screw 411 is driven to rotate, thereby causing the slider 4, which is threadedly engaged with it, to move horizontally in the groove, and adjust the left and right position of the device box 2 so as to avoid abnormally intruding foreign objects, and further protect the device box 2 and the inspection camera 21.

[0047] Furthermore, a pressure sensor is installed inside the baffle B423. The pressure sensor is electrically connected to the regulating motor 41. When the baffle B423 comes into contact with a foreign object and they press against each other, the pressure sensor detects the pressure change and transmits the signal to the regulating motor 41 in a timely manner. By comparing the values ​​of the pressure sensors inside different baffles B423, the position of the foreign object intrusion limit is determined, thereby causing the controller inside the regulating motor 41 to control the regulating motor 41 to rotate forward or reverse, driving the device box 2 to move away from the foreign object to avoid it, thus improving the safety of the device box 2 and its internal sensors.

[0048] In this embodiment, an auxiliary block 43 is fixedly connected to the surface of the movable plate 421. A synchronous wheel 431 is rotatably connected to one side of the auxiliary block 43. A pressure sensor and a wheel speed sensor are installed inside the synchronous wheel 431. Both the pressure sensor and the wheel speed sensor are electrically connected to the regulating motor 41. The synchronous wheel 431, like the rail wheel 12, rolls on the rail surface. The wheel speed sensor can detect the speed difference between the two synchronous wheels 431 moving on the rail surface in real time, while the pressure sensor can detect the pressure difference between the two sides of the rail where the entire device is located. Based on the speed difference and pressure difference, the movement status of the entire device at the curve of the rail can be determined. Then, an electrical signal is sent to the regulating motor 41 to move the device box 2 and the inspection camera 21 on its surface to the side closer to the inner ring of the curve, thereby adjusting the center of gravity of the device to reduce the tilt of the entire device when it encounters a curve and improve the stability of the inspection in foggy weather.

[0049] The wheel frame 11 is equipped with a flaw detection wheel 14 at the bottom. The flaw detection wheel 14 is equipped with a flaw detection radar and is in direct contact with the rail. It continuously detects flaws in the rail during rolling.

[0050] A drive component 13 adapted to the rail wheel 12 is fixedly connected to the surface of the wheel frame 11. The drive component 13 includes a drive motor and a reducer. The output end of the drive motor is connected to the input end of the reducer, and the output end of the reducer is directly connected to the rail wheel 12. Driven by the drive motor, the rail wheel 12 is driven to rotate on the rail surface, thereby moving the entire device.

[0051] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A railway line inspection device, comprising a frame (1), a wheel frame (11), and rail wheels (12) on the surface of the wheel frame (11), characterized in that, The frame (1) is provided with a device box (2), and an inspection camera (21) is installed on the surface of the device box (2). The protective structure is provided on the surface of the frame (1) and the device box (2). The protective structure includes a connecting plate (33) fixedly connected to the surface of the device box (2). A baffle A (331) is fixedly connected to one end of the connecting plate (33) away from the device box (2). It also includes a buffer assembly for buffering impact. An interception assembly is disposed on the surface of baffle A (331). The interception assembly includes two friction blocks (34) fixedly connected to the surfaces of baffle A (331) near both sides. Each of the two friction blocks (34) has a sliding groove on its opposite side and a friction rod (343) is slidably connected through the sliding groove. The two friction rods (343) are connected through a buffer plate (341), and an interception net (345) is disposed between the two friction rods (343).

2. The railway line inspection device according to claim 1, characterized in that: The friction rod (343) is tightly damped and slidably connected to the inner wall of the groove, and the surface of the friction rod (343) is provided with a number of friction rings (344) for increasing the sliding friction resistance. The buffer plate (341) is provided with a number of counterweights (342).

3. A railway line inspection device according to claim 1, characterized in that: The buffer assembly includes a rotating plate (3) disposed on the surface of the frame (1), the device box (2) slides on the surface of the rotating plate (3), and the device box (2) is connected to the rotating plate (3) by a spring (321). A limiting rod (32) is inserted inside the spring (321). One end of the limiting rod (32) is fixedly connected to the device box (2), and the other end is slidably connected to the rotating plate (3).

4. A railway line inspection device according to claim 3, characterized in that: The rotating plate (3) has a rotating shaft (31) fixedly connected to its surface, and the rotating shaft (31) is rotatably connected to the frame (1).

5. A railway line inspection device according to any one of claims 1-4, characterized in that: The protective structure includes two fixed blocks (42) fixedly connected to the surface of the frame (1). A movable plate (421) slides inside the fixed block (42). The movable plate (421) is connected to the fixed block (42) by a tension spring (422). A baffle B (423) is fixedly connected to one end of the movable plate (421). It also includes auxiliary components for obstacle avoidance.

6. A railway line inspection device according to claim 5, characterized in that: The auxiliary component includes a slider (4) fixedly connected to the bottom of the device box (2). The surface of the frame (1) is provided with a groove that is adapted to the slider (4). An adjustment motor (41) is fixedly connected to the bottom of the frame (1). A screw (411) is fixedly connected to the output end of the adjustment motor (41). The screw (411) is threadedly connected to the slider (4).

7. A railway line inspection device according to claim 6, characterized in that: A pressure sensor is installed inside the baffle B (423), and the pressure sensor is electrically connected to the regulating motor (41).

8. A railway line inspection device according to claim 5, characterized in that: An auxiliary block (43) is fixedly connected to the surface of the movable plate (421). A synchronous wheel (431) is rotatably connected to one side of the auxiliary block (43). A pressure sensor and a wheel speed sensor are installed inside the synchronous wheel (431).

9. A railway line inspection device according to claim 1, characterized in that: The wheel frame (11) is equipped with a flaw detection wheel (14) at its bottom.

10. A railway line inspection device according to claim 1, characterized in that: The wheel frame (11) is fixedly connected to a drive component (13) adapted to the rail wheel (12).

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