An automatic rail inspection device for turnout rail inspection

Abstract

This invention discloses an automatic rail inspection device for turnout rail inspection, belonging to the technical field of rail inspection vehicles. The device includes an inspection vehicle with a guide rail at one end. Inspection vehicles are mounted on both sides of the bottom of the guide rail. Each inspection vehicle is used to inspect the levelness of the side rail. Multiple mounting brackets are slidably mounted on the guide rail, and screw adjustment components are installed on the mounting brackets for adjusting the elevation bolts on the sleepers. This automatic rail inspection device for turnout rail inspection achieves continuous monitoring by moving the inspection vehicle along the side rail of the turnout using inspection wheels. Combined with real-time collection of rail inclination data by tilt sensors, it can accurately identify horizontal deviations in the side rail, realizing integrated automated operation of turnout side rail inspection, alignment, and leveling. This eliminates errors caused by manual operation, reduces labor intensity, improves track maintenance efficiency, avoids traffic hazards caused by track unevenness, and ensures the safe and stable operation of railway tracks.

Description

Technical Field

[0001] This invention relates to the field of track inspection vehicle technology, specifically to an automatic track inspection device for inspecting turnout rails. Background Technology

[0002] Turnout rails are special cross-section rails used specifically for railway turnouts, including switch rails, stock rails, and frog rails. They are used in conjunction with sleepers and connecting components, undertaking the functions of train switching and lateral track guidance, and are key load-bearing components of the track. Their working conditions are complex, and they are subjected to frequent impacts. Made of high-purity steel, they possess excellent wear resistance and fatigue resistance, making them suitable for high-density traffic on tracks. Automatic track inspection devices integrate laser scanning, sensors, and control systems, enabling online detection of turnout lateral tracks, gauge, wear, cracks, and geometric dimensions, providing real-time comparison with standards and issuing warnings. These devices replace manual inspections, achieving an accuracy of 0.1mm, efficiently identifying defects, and simultaneously covering rail and sleeper condition monitoring, improving maintenance efficiency, ensuring traffic safety, and are widely used in turnout manufacturing and track maintenance.

[0003] Existing technology typically uses a rail inspection vehicle to perform side rail leveling. It collects data on rail inclination and horizontal deviation and generates adjustment parameters. Then, staff manually adjust the sleeper elevation bolts to complete the leveling operation by comparing the inspection data with the data.

[0004] However, in actual use, manual adjustment relies on the experience of operators, resulting in poor fine-tuning accuracy and low consistency, making it difficult to accurately eliminate minor horizontal deviations. At the same time, the manual alignment and bolt tightening process is cumbersome, time-consuming, labor-intensive, and inefficient. Over time, this can easily lead to the accumulation of horizontal deviations in the side rails, inducing track irregularities and affecting the stability and safety of train operation. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic rail inspection device for turnout rail inspection, so as to solve the problem that manual adjustment in the prior art is prone to deviation.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solution: including an inspection vehicle, one end of which is provided with a guide rail, and two rail inspection vehicles are installed on both sides of the bottom of the guide rail. The rail inspection vehicles are used to inspect the horizontality of the side rails. Multiple mounting brackets are slidably installed on the guide rail, and screw adjustment components are installed on the mounting brackets. The screw adjustment components are used to adjust the elevation bolts on the sleepers.

[0007] Preferably, the track inspection vehicle includes a connecting plate fixed to the bottom of the guide rail, a frame hinged to the connecting plate, detection wheels installed at both ends of the frame, the detection wheels being used to roll on the side rails, and an tilt sensor installed on the frame.

[0008] Preferably, a transverse drive assembly is mounted on the mounting frame. The transverse drive assembly includes a motor, which is mounted on one side of the mounting frame. A drive wheel is mounted on the output end of the motor, and the drive wheel makes rolling contact with the guide rail.

[0009] Preferably, a vertical drive assembly is installed on the mounting frame. The vertical drive assembly includes a second motor fixedly installed on the mounting frame. A lead screw is rotatably connected to the mounting frame, and a slider is threadedly connected to the lead screw. The slider is vertically slidably connected to the mounting frame. The second motor is used to drive the lead screw to rotate, and the second motor is connected to the lead screw via a belt.

[0010] Preferably, the screw adjustment assembly includes an adjustment rod rotatably mounted on a slider, the bottom end of the adjustment rod having a regular hexagonal hole, and a motor three is mounted on the slider, the motor three being connected to the upper end of the adjustment rod via a gear set.

[0011] Preferably, a fixing rod is fixedly installed on the side of the mounting bracket near the guide rail, a slide plate is laterally slidably connected to the guide rail, the fixing rod is movably inserted into the slide plate, and a spring is sleeved on the fixing rod, with both ends of the spring pressing against the side walls of the mounting bracket and the slide plate.

[0012] Preferably, a stop assembly is provided on the rear side of the adjusting rod. The stop assembly includes a fixing plate fixedly installed to the bottom of the mounting bracket. A cylinder is fixedly installed on the fixing plate. A baffle is fixedly installed at the output end of the cylinder. The output end of the cylinder is inclined toward one side of the adjusting rod.

[0013] Preferably, the guide rail has a straight groove, and the fixing rod slides within the straight groove.

[0014] Preferably, a limiting rod is fixedly installed at the upper end of the slider, and the end of the limiting rod away from the slider is located directly above the slide plate.

[0015] Preferably, the limiting rod is configured as an n-shape, and an anti-slip pad is provided at the end of the limiting rod away from the slider.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: 1. In this invention, continuous monitoring is achieved by moving the inspection vehicle along the side rail of the turnout using inspection wheels. Combined with the real-time collection of rail inclination data by the tilt sensor, the horizontal deviation of the side rail can be accurately identified. At the same time, relying on the linkage control system with the guide rail, mounting frame and screw adjustment components, the number of rotations of the components is precisely controlled according to the measured tilt data, and the elevation bolt adjustment and sleeper height correction are automatically completed. This structure realizes the integrated automated operation of turnout side rail inspection, alignment and leveling, abandoning the traditional manual inspection and adjustment mode, effectively eliminating the errors caused by manual operation, reducing the intensity of manual labor, improving the efficiency of track maintenance, avoiding the traffic hazards caused by track unevenness, and ensuring the safe and stable operation of railway tracks.

[0017] 2. This invention uses an elastic structure composed of a sliding plate, a fixing rod, and a spring, in conjunction with a blocking component. The baffle plate is pressed against the side wall of the high-level bolt to position the mounting bracket. Through the elastic buffering effect of the spring, the baffle plate that contacts the high-level bolt first can wait for the subsequent baffle plate to also contact the high-level bolt, so that all the adjusting rods are located directly above the high-level bolt, achieving the purpose of simultaneous adjustment.

[0018] 3. In this invention, by setting a limiting rod, the limiting rod can be pressed on the slide plate to fix the position of the mounting bracket. Thus, when adjusting the high-level bolts, the baffle can be removed, which can prevent friction between the high-level bolts and the baffle from damaging the anti-rust coating when the bolts rotate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic rail inspection device for turnout rail inspection according to the present invention; Figure 2 This is a schematic diagram of the overall structure of an automatic rail inspection device for turnout rail inspection according to the present invention from another perspective. Figure 3 This is a partial structural schematic diagram of an automatic rail inspection device for turnout rail inspection according to the present invention; Figure 4 This is a partial structural diagram of an automatic rail inspection device for turnout rail inspection according to the present invention from another perspective. Figure 5 This is a partial planar structural schematic diagram of an automatic rail inspection device for turnout rail inspection according to the present invention; Figure 6 This is a schematic diagram of the slider structure of an automatic rail inspection device for turnout rail inspection according to the present invention; Figure 7 This invention relates to an automatic rail inspection device for detecting turnout rails. Figure 6 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 This is a schematic diagram of the overall structure of an automatic rail inspection device for detecting turnout rails according to the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Inspection vehicle; 2. Guide rail; 21. Straight groove; 3. Rail inspection vehicle; 31. Connecting plate; 32. Frame; 33. Inspection wheel; 34. Tilt sensor; 4. Mounting bracket; 41. Slide plate; 42. Fixing rod; 43. Spring; 5. Lateral drive assembly; 51. Motor 1; 52. Drive wheel; 6. Vertical drive assembly; 61. Motor 2; 62. Lead screw; 63. Slider; 7. Screw adjustment assembly; 71. Adjusting rod; 72. Motor 3; 73. Gear set; 8. Stop assembly; 81. Fixing plate; 82. Cylinder; 83. Baffle; 9. Limiting rod. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0022] Example 1 Manual adjustments rely on the experience of operators, resulting in poor precision and low consistency in fine-tuning, making it difficult to accurately eliminate minor horizontal deviations. At the same time, the manual alignment and bolt tightening process is cumbersome, time-consuming, labor-intensive, and inefficient. Over time, this can lead to the accumulation of horizontal deviations in the side rails, inducing track irregularities and affecting the smoothness and safety of train operation.

[0023] like Figures 1 to 8 In this embodiment, a testing vehicle 1 is included. A guide rail 2 is provided at one end of the testing vehicle 1. Rail inspection vehicles 3 are installed on both sides of the bottom of the guide rail 2. The rail inspection vehicles 3 are used to test the horizontality of the side rails. Multiple mounting brackets 4 are slidably installed on the guide rail 2. Screw adjustment components 7 are installed on the mounting brackets 4. The screw adjustment components 7 are used to adjust the elevation bolts on the sleepers.

[0024] Working principle: such as Figure 1 , Figure 2 , Figure 3 and Figure 4 During operation, the inspection vehicle 1 travels along the rails, while the inspection wheel 33 moves synchronously against the surface of the side rail of the turnout, continuously monitoring the horizontal status of the side rail in real time. When there is a height deviation or unevenness in the side rail, the tilt sensor 34 can detect the tilt parameter of the side rail in a timely manner and transmit the detection data to the control system of the device. Based on the received detection signal, the control system drives the mounting frame 4 to make precise displacement movements along the guide rail 2, causing the screw adjustment component 7 to be precisely aligned above the sleeper elevation bolt. The device changes the support height of the sleeper by adjusting the elevation bolt, and at the same time, the control system precisely controls the number of rotations of the screw adjustment component 7 according to the actual tilt data of the side rail, completing the standardized leveling operation, effectively correcting the tilt deviation of the side rail, thereby realizing the automated and precise leveling of the turnout side rail.

[0025] It should be emphasized that the core improvement of this embodiment lies in the following: continuous monitoring is achieved by the inspection vehicle 1 moving along the turnout side rail with the inspection wheel 33, and the tilt sensor 34 collecting rail tilt data in real time, which can accurately identify horizontal deviation problems of the side rail; at the same time, relying on the control system to link the guide rail 2, the mounting frame 4 and the screw adjustment assembly 7, the number of rotations of the assembly is precisely controlled according to the measured tilt data, and the elevation bolt adjustment and sleeper height correction are automatically completed. This structure realizes the integrated automated operation of turnout side rail inspection, alignment and leveling, abandoning the traditional manual inspection and adjustment mode, eliminating the errors caused by manual operation, reducing the intensity of manual labor, improving the efficiency of track maintenance, avoiding the traffic hazards caused by track unevenness, and ensuring the safe and stable operation of railway tracks.

[0026] like Figure 8 In this embodiment, the track inspection vehicle 3 includes a connecting plate 31 fixed to the bottom of the guide rail 2, a frame 32 hinged to the connecting plate 31, detection wheels 33 are installed at both ends of the frame 32, the detection wheels 33 are used to roll on the side rails, and tilt sensors 34 are installed on the frame 32.

[0027] It should be noted that the detection wheel 33 continuously moves along the surface of the side rail of the turnout to continuously and in real time detect the horizontal status of the side rail. During the operation, if the side rail has a height deviation or becomes tilted and uneven, the tilt sensor 34 can immediately sense and accurately collect the tilt data of the side rail, providing an accurate detection basis for subsequent correction and adjustment operations.

[0028] like Figure 7 In this embodiment, a transverse drive assembly 5 is installed on the mounting frame 4. The transverse drive assembly 5 includes a motor 51, which is installed on one side of the mounting frame 4. A drive wheel 52 is installed at the output end of the motor 51, and the drive wheel 52 makes rolling contact with the guide rail 2.

[0029] It should be noted that the motor 51 outputs power to drive the drive wheel 52 to rotate. The drive wheel 52 rolls against the surface of the guide rail 2, which can drive the mounting frame 4 to move horizontally back and forth along the guide rail 2. The screw adjustment component 7 moves synchronously with the mounting frame 4 and can be accurately moved to the position directly above the sleeper elevation bolt according to the operation requirements to complete the horizontal alignment operation.

[0030] like Figure 2 and Figure 3 In this embodiment, a vertical drive assembly 6 is installed on the mounting frame 4. The vertical drive assembly 6 includes a second motor 61 fixedly installed on the mounting frame 4. A lead screw 62 is rotatably connected to the mounting frame 4. A slider 63 is threadedly connected to the lead screw 62. The slider 63 is vertically slidably connected to the mounting frame 4. The second motor 61 is used to drive the lead screw 62 to rotate. The second motor 61 is connected to the lead screw 62 via a belt.

[0031] It should be noted that the second motor 61 drives the lead screw 62 to rotate via belt transmission. During the rotation of the lead screw 62, the slider 63 can be driven to make vertical displacement. The screw adjustment component 7 is fixedly installed on the slider 63, so that the screw adjustment component 7 can complete the vertical reciprocating movement synchronously with the slider 63, thereby realizing the vertical height adjustment of the screw adjustment component 7 and meeting the work stroke requirements for the alignment and adjustment of the elevation bolt.

[0032] like Figure 3 and Figure 4 In this embodiment, the screw adjustment assembly 7 includes an adjustment rod 71 rotatably mounted on the slider 63. The bottom end of the adjustment rod 71 has a regular hexagonal hole. A motor 72 is mounted on the slider 63. The motor 72 is connected to the upper end of the adjustment rod 71 through a gear set 73.

[0033] It should be noted that the screw adjustment assembly 7 is equipped with a gear set 73, which consists of two spur gears. The two spur gears are respectively installed and fixed at the output end of the motor 3 72 and the upper end of the adjusting rod 71. When the motor 3 72 is working, it drives the adjusting rod 71 to rotate through the meshing transmission of the gear set 73. The bottom of the adjusting rod 71 is provided with a regular hexagonal hole structure, which can be sleeved on the outside of the elevation bolt, so that the adjusting rod 71 and the elevation bolt rotate synchronously. Through this transmission structure, the elevation bolt can be automatically driven to rotate and adjust the sleeper height, thereby completing the correction and adjustment of the horizontality of the turnout side rail.

[0034] Example 2 It is understandable that in Embodiment 1, the screw adjustment component 7 is moved to the top of the high-level bolt, and then moved up and down to adjust the high-level bolt, thereby automatically adjusting the level of the sleeper. However, in actual use, there are usually four sets of high-level bolts on the sleeper. Due to factors such as production errors, the four high-level bolts are difficult to be in the same straight line, making it impossible for some screw adjustment components 7 to be accurately fitted onto the high-level bolts for adjustment. Therefore, the following technical solution is proposed.

[0035] like Figures 4 to 6 To solve the above problems, a fixing rod 42 is fixedly installed on the side of the mounting bracket 4 near the guide rail 2. A sliding plate 41 is laterally slidably connected to the guide rail 2. The fixing rod 42 is movably inserted into the sliding plate 41. A spring 43 is sleeved on the fixing rod 42. The two ends of the spring 43 press against the side walls of the mounting bracket 4 and the sliding plate 41. A blocking component 8 is provided on the rear side of the adjusting rod 71. The blocking component 8 includes a fixing plate 81 fixedly installed to the bottom of the mounting bracket 4. A cylinder 82 is fixedly installed on the fixing plate 81. A baffle 83 is fixedly installed on the output end of the cylinder 82. The output end of the cylinder 82 is inclined to one side of the adjusting rod 71.

[0036] Working principle: such as Figure 4 When the screw adjustment assembly 7 has not moved downward, the cylinder 82 drives the baffle 83 to extend downward toward the adjusting rod 71. Then, when the detection vehicle 1 moves forward, the baffle 83 presses against the side wall of the high-level bolt. If the high-level bolts are not on the same straight line, the spring 43 at the position of the baffle 83 that presses against the side wall of the high-level bolt will be compressed. When all the baffles 83 are pressing against the side wall of the high-level bolt, all the adjusting rods 71 ​​are exactly above the high-level bolt. Then the screw adjustment assembly 7 moves downward to adjust the high-level bolt.

[0037] It should be emphasized that the core improvement of this embodiment lies in the following: the elastic structure composed of the sliding plate 41, the fixing rod 42 and the spring 43, in conjunction with the blocking component 8, uses the baffle 83 to press against the side wall of the high-level bolt to position the mounting bracket 4. Through the elastic buffering effect of the spring 43, the baffle 83 that contacts the high-level bolt first can wait for the subsequent baffle 83 to also contact the high-level bolt, so that all the adjusting rods 71 ​​are located directly above the high-level bolt, achieving the purpose of simultaneous adjustment.

[0038] like Figure 1 and Figure 2 In this embodiment, a straight groove 21 is provided on the guide rail 2, and the fixing rod 42 slides in the straight groove 21.

[0039] It should be noted that the mounting frame 4 reciprocates along the surface of the guide rail 2, and the fixing rod 42 at the bottom of the mounting frame 4 is correspondingly inserted into the straight groove 21 opened in the guide rail 2. While the mounting frame 4 is displaced, the fixing rod 42 slides synchronously back and forth along the straight groove 21. Through the cooperation structure between the straight groove 21 and the fixing rod 42, the movement trajectory of the mounting frame 4 is limited and guided, ensuring the stability and alignment accuracy of the overall movement.

[0040] Example 3 It is understandable that in Embodiment 2, the elastic structure composed of the slide plate 41, the fixing rod 42 and the spring 43, in conjunction with the blocking component 8, ensures that all the adjusting rods 71 ​​are located directly above the high-level bolt, achieving the purpose of simultaneous adjustment. However, when adjusting the rotation of the high-level bolt, the baffle 83 will be pressed against the high-level bolt, which will damage the anti-rust coating on the surface of the high-level bolt. Therefore, the following technical solution is proposed.

[0041] like Figures 3 to 5 To solve the above problems, a limiting rod 9 is fixedly installed on the upper end of the slider 63. The end of the limiting rod 9 away from the slider 63 is located directly above the slide plate 41. The limiting rod 9 is set in an n-shape, and an anti-slip pad is provided on the end of the limiting rod 9 away from the slider 63.

[0042] Working principle: such as Figure 4When the baffle 83 is pressed against the side wall of the high-level bolt, and when all the adjusting rods 71 ​​are directly above the high-level bolt, the vertical drive assembly 6 drives all the adjusting rods 71 ​​downwards to fit onto the high-level bolt. During this process, the slider 63 drives the limiting rod 9 to move downwards and press against the upper end of the slide plate 41. The cylinder 82 drives the baffle 83 to retract and move away from the high-level bolt. At this time, the limiting rod 9 presses against the upper end of the slide plate 41 and remains stationary. The anti-slip pad increases friction, so that after the baffle 83 is removed, the mounting bracket 4 and the slide plate 41 will not move relative to each other. At this time, when adjusting the high-level bolt by adjusting the adjusting rod 71, the anti-rust coating on the surface of the high-level bolt will not be damaged because it is detached from the baffle 83.

[0043] It should be emphasized that the core improvement of this embodiment is that by setting the limiting rod 9, the limiting rod 9 is pressed on the slide plate 41, which can fix the position of the mounting bracket 4. Thus, when adjusting the high-level bolt, the baffle 83 can be removed, which can prevent friction damage to the anti-rust coating when the high-level bolt rotates with the baffle 83.

[0044] It should be noted that after the adjusting rod 71 is fitted onto the high-level bolt, if the baffle 83 is removed and the position of the mounting bracket 4 is not fixed by pressing the limiting rod 9 on the slide plate 41, and the high-level bolt is adjusted directly by adjusting the adjusting rod 71, then the adjusting rod 71 will be subjected to the lateral force brought by the spring 43, which will cause the adjusting rod 71 to shake over a long period of time. Therefore, it is necessary to set the limiting rod 9 to fix the position of the mounting bracket 4.

[0045] Working principle: In operation, the inspection vehicle 1 is first driven to move along the rail, causing the inspection wheels 33 of the track inspection vehicle 3 to roll in contact with the side rail of the turnout. The tilt sensor 34 collects the tilt data of the side rail in real time and transmits the detection data to the control system. When a horizontal deviation of the side rail is detected, the control system activates the lateral movement drive assembly 5, which drives the drive wheel 52 to roll on the guide rail 2, causing the mounting frame 4 to move along the guide rail 2. At the same time, the fixing rod 42 slides along the straight groove 21, realizing the limited guiding movement of the mounting frame 4, so that the screw adjustment assembly 7 is initially aligned with the elevation bolts. To address the problem of positional deviations in the arrangement of multiple sets of elevation bolts, before operation, the cylinder 82 drives the baffle 83 to extend downwards towards the adjusting rod 71. The inspection vehicle 1 moves forward so that the baffle 83 presses against the side wall of the elevation bolt. The baffle 83 that contacts first can compress the corresponding spring 43 for adaptive compensation until all baffles 83 are in contact with the side wall of the elevation bolt, completing the precise alignment of all adjusting rods 71. After alignment, motor 61 drives screw 62 via belt to rotate, causing slider 63 and screw adjustment assembly 7 to move vertically downwards, so that the hexagonal hole at the bottom of adjustment rod 71 fits onto the outside of elevation bolt. During the downward movement of slider 63, limit rod 9 simultaneously presses down slide plate 41, locking mounting bracket 4 in position. Subsequently, cylinder 82 drives baffle 83 to retract, preventing wear on the anti-rust coating of elevation bolt. Finally, motor 72 drives adjustment rod 71 to rotate via gear set 73. The control system precisely controls the number of rotations based on previously collected rail inclination data, adjusting elevation bolt to change sleeper support height, correcting side rail inclination deviation, and completing automated leveling operation.

[0046] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed application.

Claims

1. An automatic rail inspection device for detecting turnout rails, characterized in that, The system includes an inspection vehicle (1), one end of which is provided with a guide rail (2), and two sides of the bottom of the guide rail (2) are equipped with rail inspection vehicles (3). The rail inspection vehicles (3) are used to inspect the horizontality of the side rails. Multiple mounting brackets (4) are slidably installed on the guide rail (2), and screw adjustment components (7) are installed on the mounting brackets (4). The screw adjustment components (7) are used to adjust the elevation bolts on the sleepers.

2. The automatic rail inspection device for turnout rail inspection as described in claim 1, characterized in that, The track inspection vehicle (3) includes a connecting plate (31) fixed to the bottom of the guide rail (2), a frame (32) is hinged on the connecting plate (31), and detection wheels (33) are installed at both ends of the frame (32). The detection wheels (33) are used to roll on the side rails, and tilt sensors (34) are installed on the frame (32).

3. The automatic rail inspection device for turnout rail inspection as described in claim 1, characterized in that, The mounting bracket (4) is equipped with a transverse drive assembly (5), which includes a motor (51). The motor (51) is mounted on one side of the mounting bracket (4), and a drive wheel (52) is mounted on the output end of the motor (51). The drive wheel (52) is in rolling contact with the guide rail (2).

4. The automatic rail inspection device for turnout rail inspection as described in claim 1, characterized in that, A vertical drive assembly (6) is installed on the mounting frame (4). The vertical drive assembly (6) includes a second motor (61) fixedly installed on the mounting frame (4). A lead screw (62) is rotatably connected to the mounting frame (4). A slider (63) is threadedly connected to the lead screw (62). The slider (63) is vertically slidably connected to the mounting frame (4). The second motor (61) is used to drive the lead screw (62) to rotate. The second motor (61) is connected to the lead screw (62) via a belt.

5. The automatic rail inspection device for turnout rail inspection as described in claim 4, characterized in that, The screw adjustment assembly (7) includes an adjustment rod (71) rotatably mounted on a slider (63). The bottom end of the adjustment rod (71) has a regular hexagonal hole. A motor (72) is mounted on the slider (63). The motor (72) is connected to the upper end of the adjustment rod (71) via a gear set (73).

6. The automatic rail inspection device for turnout rail inspection as described in claim 5, characterized in that, A fixing rod (42) is fixedly installed on the side of the mounting bracket (4) near the guide rail (2). A sliding plate (41) is slidably connected to the guide rail (2). The fixing rod (42) is movably inserted into the sliding plate (41). A spring (43) is sleeved on the fixing rod (42). The two ends of the spring (43) press against the side walls of the mounting bracket (4) and the sliding plate (41).

7. An automatic rail inspection device for turnout rail inspection as described in claim 6, characterized in that, A stop assembly (8) is provided on the rear side of the adjusting rod (71). The stop assembly (8) includes a fixing plate (81) fixedly installed on the bottom of the mounting bracket (4). A cylinder (82) is fixedly installed on the fixing plate (81). A baffle (83) is fixedly installed on the output end of the cylinder (82). The output end of the cylinder (82) is inclined toward one side of the adjusting rod (71).

8. The automatic rail inspection device for turnout rail inspection as described in claim 7, characterized in that, A straight groove (21) is provided on the guide rail (2), and the fixing rod (42) slides in the straight groove (21).

9. An automatic rail inspection device for turnout rail inspection as described in claim 7, characterized in that, A limiting rod (9) is fixedly installed at the upper end of the slider (63), and the end of the limiting rod (9) away from the slider (63) is located directly above the slide plate (41).

10. An automatic rail inspection device for turnout rail inspection as described in claim 9, characterized in that, The limiting rod (9) is set in an n-shape, and an anti-slip pad is provided at the end of the limiting rod (9) away from the slider (63).

Images