Vertical shaft defect inspection device capable of stably detecting

Abstract

The invention relates to the technical field of coal mine safety detection, in particular to a vertical shaft defect inspection device capable of stably detecting, which comprises a disc, an extending plate, a movable ground penetrating radar and an inspection lower part, the disc is provided with a plurality of groups of positioning steel wire rope holes and fixed ground penetrating radars, the disc is provided with a plurality of groups of edge grooves, and side sliding grooves are formed in two sides in each group of edge grooves; a rack is arranged at the upper end of one side in each group of edge grooves, a mounting seat is arranged at the bottom of each edge groove, two groups of mounting holes are formed in the inner side of each mounting seat, a center block is arranged at the center of the disc, a lifting steel wire rope hole is formed in the center of the center block, a supporting arm is arranged on the extending plate, and a rear plate is arranged at the rear end of the supporting arm; the motor drives the lead screw to enable the push-out plate to drive the two sets of arc-shaped arms to move out together, then the motor drives the gear, the chain wheel and the like to enable the two sets of arc-shaped arms to be unfolded, the ventilation influence of the ultra-deep vertical shaft can be reduced, the state of detection equipment is stable, and the detection result is accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine safety detection, and in particular to a vertical shaft defect inspection device capable of stable detection. Background Art

[0002] Most coal mines in my country rely on underground mining, but this method often encounters complex geological conditions and harsh operating environments, increasing the risk of accidents. Vertical shafts, as key pathways connecting underground resources to the surface, suffer from structural problems such as deformation, spalling, and cracks, which seriously threaten coal mine safety and the stable extraction of resources, causing significant losses to the national economy and society.

[0003] Currently, inspection robots are equipped with detection equipment such as conventional cameras, infrared cameras, and cross-sectional scanners. However, these devices lack accuracy and are unable to effectively identify common problems such as wellbore deformation, wellbore wall spalling, and surface cracks. Although these devices are widely used, their detection accuracy is limited and they are unable to accurately identify common wellbore problems.

[0004] Ground-penetrating radar (GPR) is a highly effective detection tool that can clearly reveal shaft defects. However, in ultra-deep vertical shafts, interference from ladder rooms and pipelines can compromise the effectiveness of air-coupled GPR, resulting in reduced image quality and difficulty in accurately assessing shaft wall conditions. Furthermore, ventilation issues in ultra-deep shafts can lead to unstable detection equipment, compromising the accuracy of detection results. Summary of the Invention

[0005] Therefore, the present invention is made in view of the above problems. The purpose of the present invention is to use a motor to drive a lead screw to move the ejection plate with the two sets of arc arms out together, and use a rack to rotate the two sets of arc arms synchronously during the movement, and then use the motor to drive gears, sprockets, etc. to unfold the two sets of arc arms, and then the ejection plate continues to move, thereby moving the two sets of arc arms to the wellbore wall for contact and stabilization, and then use the motor to provide a rotation amount, so that the mobile ground penetrating radar can move along the arc moving rail formed by the two sets of arc arms and rotate toward the place to be detected, realizing a close detection mode to solve the above problems; the present invention achieves the above purpose through the following technical solutions:

[0006] A vertical shaft defect inspection device that can stably detect defects includes: a disc, an extension plate, a mobile ground penetrating radar, and an inspection lower part. The disc is provided with multiple groups of positioning wire rope holes and fixed ground penetrating radars. The disc is provided with multiple groups of side grooves, and side sliding grooves are provided on both sides of each group of side grooves. A rack is provided on the upper end of one side of each group of side grooves, and a mounting seat is provided at the bottom of the side grooves. Two groups of mounting holes are provided on the inner side of the mounting seat. A center block is provided at the center of the disc, and a lifting wire rope hole is provided at the center of the center block. A support arm is provided on the extension plate, and a rear plate is provided at the rear end of the support arm. The extension plate is provided with mounting hole 1, mounting hole 2, mounting hole 3, and mounting hole 4. A rotating drum is provided with a center block at the center of the disc. A lifting wire rope hole is provided at the center of the center block. A support arm is provided on the extension plate, and a rear plate is provided at the rear end of the support arm. The extension plate is provided with mounting hole 1, mounting hole 2, mounting hole 3, and mounting hole 4. There is a rotating hole one, a gear one is provided at the bottom end of the rotating drum one, a first arc-shaped arm is provided on the outer circumference of the rotating drum one, a connecting movable rail is provided at the other end of the outer circumference of the rotating drum one, an arc-shaped movable rail one is provided on the upper end surface of the first arc-shaped arm, and an empty layer is provided at the junction of the first arc-shaped arm and the rotating drum one, a gear two is provided at the bottom end of the second rotating drum, a splint is provided on the second rotating drum, a rotating hole two is provided inside the second rotating drum, a second arc-shaped arm is provided on the outer circumference of the second rotating drum, an arc-shaped movable rail two is provided on the upper end surface of the second arc-shaped arm, an intermediate column is fixedly installed in the mounting hole one, an arc-shaped movable rail three is provided on the upper end surface of the intermediate column, a swing rod is slidably installed in the swing cylinder, and the end of the swing cylinder is installed on the motor three.

[0007] Preferably, a bottom mounting plate is provided at the bottom end of the rear plate, a rear cover is provided at the top end of the rear plate, the rear cover is provided with a top mounting hole, and two sets of side sliders are provided on both sides of the rear plate.

[0008] Preferably, multiple groups of batteries are installed on the upper end surface of the disc, the extended plate is installed in the side groove, and the two groups of side sliders of the extended plate are installed in the side sliding grooves.

[0009] Preferably, a shaft is provided on the ground, a line pipe and a ladder room are provided in the shaft, an upper platform is installed on the ground, a concave hole is provided on the upper platform, a plurality of positioning steel ropes are provided on the lower end face of the upper platform, a lifting motor is installed in the concave hole, a lifting steel rope is installed on the lifting motor, the end of the lifting steel rope is installed in the lifting steel rope hole of the disc, and the disc is installed at the plurality of positioning steel ropes through the plurality of positioning steel rope holes.

[0010] Preferably, a lead screw is provided on motor one, a sprocket one and a gear three are provided at the end of motor two, gear three is a toothless gear, chain one is installed on sprocket one and sprocket two, a sprocket two and a gear four are provided on the transmission shaft, and a gear five and a gear six are provided on the driven shaft. Gear one can engage with the tooth portion of gear three, and gear two engages with gear five.

[0011] Preferably, motor 2 is installed at the lower end of the extended plate, the output shaft of motor 2 passes through mounting hole 2, the transmission shaft is installed in mounting hole 3, the driven shaft is installed in mounting hole 4, motor 1 is fixedly installed at the bottom of the side groove, the screw is installed in the threaded hole at the bottom mounting plate, and the end of the screw is installed in the mounting hole of the mounting seat.

[0012] Preferably, an arc-shaped slider is provided at the bottom end of the mobile ground penetrating radar, an upper shaft is provided at the upper end of the mobile ground penetrating radar, motor three is installed on the lower end surface of the rear cover, the output shaft of motor three passes through the top mounting hole, motor three is connected to the end of the swing cylinder, the mobile ground penetrating radar is installed in the arc-shaped movable rail three of the middle column through the arc-shaped slider, and the swing rod is installed on the upper shaft through the swing end.

[0013] Preferably, a three-dimensional laser scanner is installed at the lower end of the inspection lower part, and an inspection lower plate is provided at the lower end of the inspection lower plate, and a CCD camera and a light source are installed at the lower end of the inspection lower plate.

[0014] Beneficial effects of the present invention:

[0015] 1. The present invention uses a motor to drive a lead screw to move the ejection plate and the two sets of arc arms out together. During the movement, the rack is used to rotate the two sets of arc arms synchronously. Then the motor is used to drive gears, sprockets, etc. to unfold the two sets of arc arms. Then the ejection plate continues to move, and then the two sets of arc arms are moved to the wellbore wall to contact and stabilize, thereby reducing the ventilation impact of the ultra-deep vertical shaft, making the detection equipment state stable and the detection results accurate.

[0016] 2. The present invention utilizes a motor to provide rotational force, so that the mobile ground penetrating radar can move along the arc-shaped moving track formed by the two sets of arc-shaped arms and rotate toward the location to be detected, thereby realizing a close detection mode. This allows complex defects in the vertical shaft to be fully detected, and subtle defects can also be detected in real time, thereby improving the efficiency and effectiveness of detection while ensuring personnel safety.

[0017] 3. The present invention utilizes intelligent cruise, real-time communication, Internet and other technologies to build an end-to-end (surface to underground) collaborative platform and application system based on multiple sensors, combined with intelligent data extraction and analysis, to achieve remote and real-time discovery and recording of wellbore faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall schematic diagram of the vertical shaft assembly provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the overall explosion of the vertical shaft assembly provided by the present invention.

[0020] Figure 3 This is a schematic diagram of the stage provided by the present invention.

[0021] Figure 4 This is a schematic diagram of the first state of the inspection device provided by the present invention.

[0022] Figure 5 This is a schematic diagram of the second state of the inspection device provided by the present invention.

[0023] Figure 6This is a schematic diagram of the third state of the inspection device provided by the present invention.

[0024] Figure 7 This is a schematic diagram of the fourth state of the inspection device provided by the present invention.

[0025] Figure 8 This is a schematic diagram of the fifth state of the inspection device provided by the present invention.

[0026] Figure 9 This is a schematic diagram of the sixth state of the inspection device provided by the present invention.

[0027] Figure 10 This is a schematic diagram of an exploded view of the inspection device provided by the present invention.

[0028] Figure 11 This is an enlarged schematic diagram of point A.

[0029] Figure 12 This is an enlarged schematic diagram of point B.

[0030] Figure 13 This is a schematic diagram of the assembly of the extension plate provided by the present invention.

[0031] Figure 14 This is a schematic diagram of the arc arm assembly provided by the present invention.

[0032] Figure 15 Schematic diagram of the disc provided by the present invention.

[0033] Figure 16 Schematic diagram of the extension plate provided by the present invention.

[0034] Figure 17 This is a schematic diagram of the first arc-shaped arm provided by the present invention.

[0035] Figure 18 This is a schematic diagram of the second arc-shaped arm provided by the present invention.

[0036] Figure 19 Schematic diagram of the ground penetrating radar provided by the present invention.

[0037] Description of reference numerals:

[0038] 10. Disc; 101. Hole for positioning wire rope; 102. Fixed ground penetrating radar; 11. Side groove; 111. Side slide groove; 112. Rack; 12. Mounting seat; 121. Mounting hole; 13. Center block; 131. Hole for lifting wire rope; 14. Battery; 20. Extension plate; 21. Support arm; 22. Back plate; 221. Bottom mounting plate; 222. Back cover; 223. Top mounting hole; 224. Side slide ; 23, mounting hole 1; 231, mounting hole 2; 232, mounting hole 3; 233, mounting hole 4; 24, rotating drum 1; 241, rotating hole 1; 242, gear 1; 243, first arc-shaped arm; 244, arc-shaped movable rail 1; 245, empty layer; 246, connecting movable rail; 25, rotating drum 2; 251, gear 2; 252, splint; 253, rotating hole 2; 254, second arc-shaped arm; 255 , curved movable rail 2; 26, intermediate column; 261, curved movable rail 3; 27, motor 1; 271, lead screw; 28, motor 2; 281, gear 3; 282, sprocket 1; 283, chain 1; 284, transmission shaft; 285, sprocket 2; 286, gear 4; 29, driven shaft; 291, gear 5; 292, gear 6; 30, mobile ground penetrating radar; 301, curved slider; 30 2. Upper shaft; 31. Swing rod; 311. Swing end; 32. Swing cylinder; 33. Motor three; 40. Inspection lower part; 41. 3D laser scanner; 42. Inspection lower plate; 43. CCD camera; 44. Light source; 50. Ground; 51. Shaft; 52. Line pipe; 53. Ladder room; 54. Upper platform; 55. Concave hole; 56. Positioning wire rope; 57. Lifting motor; 58. Lifting wire rope. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that it is easy for a person skilled in the art to implement these embodiments; however, the present invention can also be implemented in various different forms, so the present invention is not limited to the embodiments described below; in addition, in order to more clearly describe the present invention, parts that are not connected to the present invention will be omitted from the accompanying drawings.

[0040] like Figure 4 、 Figure 5 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 As shown, a vertical shaft defect inspection device capable of stable detection includes: a disc 10, an extension plate 20, a mobile ground penetrating radar 30, and an inspection lower part 40;

[0041] like Figure 1 、 Figure 2 、 Figure 3As shown, the ground 50 has a shaft 51, and the shaft 51 has a line pipe 52 and a ladder room 53. An upper platform 54 is installed on the ground 50. The upper platform 54 has a concave hole 55. The lower end surface of the upper platform 54 is provided with multiple sets of positioning steel wire ropes 56. A lifting motor 57 is installed in the concave hole 55. The lifting motor 57 is installed with a lifting steel wire rope 58. The end of the lifting steel wire rope 58 is installed in the lifting steel wire rope hole 131 of the disc 10. The disc 10 is installed at the multiple sets of positioning steel wire ropes 56 through the multiple sets of positioning steel wire rope holes 101.

[0042] like Figure 4 、 Figure 5 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 As shown, multiple groups of batteries 14 are installed on the upper end surface of the disc 10, the extended plate 20 is installed in the side groove 11, and the two groups of side sliders 224 of the extended plate 20 are installed in the side slide groove 111;

[0043] The inspection lower part 40 is internally installed with a control module and a communication module. The control module controls the movement of the entire device, and the communication module transmits data to a receiving terminal on the ground. A three-dimensional laser scanner 41 is installed at the lower end of the inspection lower part 40. The inspection lower part 40 has an inspection lower plate 42 at the lower end of which a CCD camera 43 and a light source 44 are installed.

[0044] like Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 As shown, the upper end surface of the middle column 26 has an arc-shaped moving track 3 261;

[0045] Motor 1 27 has a lead screw 271, and the end of motor 2 28 has sprocket 1 282 and gear 3 281, gear 3 281 is a gear with missing teeth, chain 1 283 is installed on sprocket 1 282 and sprocket 2 285, transmission shaft 284 has sprocket 2 285 and gear 4 286, and driven shaft 29 has gear 5 291 and gear 6 292;

[0046] The swing rod 31 is mounted on the upper shaft 302 of the mobile ground penetrating radar 30 through the swing end 311. The swing rod 31 is slidably mounted in the swing cylinder 32. The end of the swing cylinder 32 is mounted on the motor 33.

[0047] The middle column 26 is fixedly mounted in the first mounting hole 23, the second motor 28 is mounted at the lower end of the extending plate 20, the output shaft of the second motor 28 passes through the second mounting hole 231, the transmission shaft 284 is mounted in the third mounting hole 232, the driven shaft 29 is mounted in the fourth mounting hole 233, the first motor 27 is fixedly mounted at the bottom of the side groove 11, the lead screw 271 is mounted in the threaded hole at the bottom mounting plate 221, the end of the lead screw 271 is mounted in the mounting hole 121 of the mounting seat 12, the third motor 33 is mounted on the lower end surface of the rear cover 222, the output shaft of the third motor 33 passes through the top mounting hole 223, the third motor 33 is connected to the end of the swing cylinder 32, and the mobile ground penetrating radar 30 is mounted in the arc-shaped movable rail 3 261 of the middle column 26 through the arc-shaped slider 301;

[0048] The first rotating drum 24 is mounted on the middle column 26 through the first rotating hole 241, and the second rotating drum 25 is mounted on the outer peripheral side of the first rotating drum 24 through the second rotating hole 253. The clamping plate 252 of the second rotating drum 25 can pass through the empty layer 245 of the first rotating drum 24.

[0049] Gear 1 242 can mesh with the teeth of gear 3 281 , and gear 2 251 can mesh with gear 5 291 ;

[0050] like Figure 15 As shown, the disc 10 has multiple groups of positioning wire rope holes 101 and a fixed ground penetrating radar 102. The disc 10 has multiple groups of side grooves 11, each group of side grooves 11 has side sliding grooves 111 on both sides, and each group of side grooves 11 has a rack 112 on one upper end. The rack 112 can engage with gear 1 242 and gear 2 251. The bottom of each group of side grooves 11 has a mounting seat 12, and the inner side of each group of mounting seats 12 has two groups of mounting holes 121. The disc 10 has a center block 13 at the center, and a lifting wire rope hole 131 at the center of the center block 13;

[0051] like Figure 16 As shown, the extending plate 20 has a support arm 21, a rear plate 22 at the rear end of the support arm 21, a bottom mounting plate 221 at the bottom end of the rear plate 22, a rear cover 222 at the top end of the rear plate 22, the rear cover 222 has a top mounting hole 223, two sets of side sliders 224 on both sides of the rear plate 22, and the extending plate 20 has a mounting hole 1 23, a mounting hole 231, a mounting hole 3 232, and a mounting hole 4 233;

[0052] like Figure 17 As shown, the rotating drum 24 has a rotating hole 241 therein, a gear 242 at the bottom end of the rotating drum 24, a first arc-shaped arm 243 at the outer periphery of the rotating drum 24, a connecting movable rail 246 at the other end of the outer periphery of the rotating drum 24, an arc-shaped movable rail 244 at the upper end surface of the first arc-shaped arm 243, and an empty layer 245 at the junction of the first arc-shaped arm 243 and the rotating drum 24.

[0053] like Figure 18 As shown, the bottom end of the second rotating drum 25 has a second gear 251, the second rotating drum 25 has a clamping plate 252, the interior of the second rotating drum 25 has a second rotating hole 253, the outer peripheral side of the second rotating drum 25 has a second arc-shaped arm 254, and the upper end surface of the second arc-shaped arm 254 has a second arc-shaped moving rail 255;

[0054] like Figure 19 As shown, the bottom end of the mobile ground penetrating radar 30 has an arc-shaped slider 301, and the upper end of the mobile ground penetrating radar 30 has an upper shaft 302;

[0055] Basic principles of the present invention:

[0056] like Figure 4 As shown, when the inspection device receives the detection command, the lifting motor 57 starts to drive the lifting wire rope 58 to pay out the wire, and then the lifting wire rope hole 131 of the disc 10 is passed to move the disc 10 downward for detection. At this time, the first arc arm 243 and the second arc arm 254 are in a retracted state, and the extension plate 20 is located in the side groove 11. At this time, the fixed ground penetrating radar 102 cooperates with the mobile ground penetrating radar 30 to perform circular line detection. At the same time, the three-dimensional laser scanner 41, the CCD camera 43, and the light source 44 work synchronously to perform three-dimensional scanning and image acquisition program detection;

[0057] like Figure 5 As shown, when a defect is detected but not found, the motor 1 27 drives the lead screw 271 to rotate, thereby pushing the extension plate 20 with the first arc-shaped arm 243 and the second arc-shaped arm 254 out a certain distance through the bottom mounting plate 221 of the extension plate 20. During the movement, when passing the rack 112, the rotating drum 1 24 and the rotating drum 2 25 engage with the rack 112 through the gear 1 242 and the gear 2 251, thereby causing the rotating drum 1 24 and the rotating drum 2 25 to rotate synchronously, causing the first arc-shaped arm 243 and the second arc-shaped arm 254 to be rotated out synchronously. During this process, the toothed portion of the gear 3 281 faces the gear 1 242, causing the gear 3 281 to partially interfere with the movement of the gear 1 242 and the gear 2 251, and then the motor 1 27 stops driving.

[0058] like Figure 6As shown, the motor 28 then drives the gear 3 281 to rotate synchronously with the sprocket 1 282, and the sprocket 1 282 drives the sprocket 2 285 to rotate through the chain 1 283, thereby causing the transmission shaft 284 to rotate synchronously with the gear 4 286, and the gear 4 286 drives the gear 6 292 to rotate, thereby causing the driven shaft 29 and the gear 5 291 to rotate synchronously, and the toothed portion of the gear 3 281 intermittently drives the gear 1 242 to rotate, and the gear 5 291 drives the gear 2 251 to rotate, thereby causing the first arc-shaped arm 243 and the second arc-shaped arm 254 to rotate synchronously in opposite directions and expand, thereby connecting the arc-shaped movable rail 1 244, the connecting movable rail 246, the arc-shaped movable rail 255, and the arc-shaped movable rail 3 261 to form a whole;

[0059] like Figure 7 As shown, the motor 1 27 then continues to drive the lead screw 271 to rotate, causing the extension plate 20 to continue to push out with the first arc-shaped arm 243 and the second arc-shaped arm 254 until the first arc-shaped arm 243 and the second arc-shaped arm 254 contact the inner wall surface of the wellbore 51;

[0060] like Figure 8 As shown, the motor 33 drives the swing cylinder 32 and the swing rod 31 to swing, thereby driving the mobile ground penetrating radar 30 to slide from the arc-shaped movable rail 3 261 to the arc-shaped movable rail 2 255 using the arc-shaped slider 301 to detect the location to be detected in one direction;

[0061] like Figure 9 As shown, the motor 33 drives the swing cylinder 32 and the swing rod 31 in the reverse direction to swing, thereby driving the mobile ground penetrating radar 30 to slide from the arc-shaped moving rail 255 through the arc-shaped moving rail 3 261 and the connecting moving rail 246 to the arc-shaped moving rail 1 244 to detect the location to be detected in another direction;

[0062] When the proximity detection is completed, the inspection device responds as follows Figure 4 The state shown, then the lifting motor 57 continues to move, so that the disc 10 is detected downward;

[0063] When the bottom of the wellbore is reached, the reverse program is started, and the lifting motor 57 moves in the reverse direction, causing the disc 10 to return upward. When the top of the wellbore is reached, the movement stops.

Claims

1. A vertical shaft defect inspection device capable of stable detection, comprising: The invention relates to a disc (10), an extension plate (20), a mobile ground penetrating radar (30), and an inspection lower part (40); the disc (10) is provided with a plurality of positioning wire rope holes (101) and a fixed ground penetrating radar (102); the disc (10) is provided with a plurality of side grooves (11), each side groove (11) is provided with side sliding grooves (111) on both sides, each side groove (11) is provided with a rack (112) on one side of the upper end, and the bottom of the side groove (11) is provided with a mounting seat (12), and the mounting seat (12) are provided with two groups of mounting holes (121) on the inner side, a center block (13) is provided at the center of the disc (10), a lifting wire rope hole (131) is provided at the center of the center block (13), a support arm (21) is provided on the extension plate (20), a rear plate (22) is provided at the rear end of the support arm (21), the extension plate (20) is provided with mounting hole 1 (23), mounting hole 2 (231), mounting hole 3 (232), mounting hole 4 (233), and a rotating hole 1 (241) is provided in the rotating drum 1 (24). ), a gear 1 (242) is provided at the bottom end of the first rotating drum (24), a first arc-shaped arm (243) is provided on the outer peripheral side of the first rotating drum (24), a connecting movable rail (246) is provided at the other end of the outer peripheral side of the first rotating drum (24), an arc-shaped movable rail 1 (244) is provided on the upper end surface of the first arc-shaped arm (243), an empty layer (245) is provided at the junction of the first arc-shaped arm (243) and the first rotating drum (24), a gear 2 (251) is provided at the bottom end of the second rotating drum (25), and a clamping plate (252) is provided on the second rotating drum (25) ), a second rotating hole (253) is provided inside the second rotating drum (25), a second arc-shaped arm (254) is provided on the outer peripheral side of the second rotating drum (25), an arc-shaped movable rail (255) is provided on the upper end surface of the second arc-shaped arm (254), an intermediate column (26) is fixedly installed in the mounting hole (23), an arc-shaped movable rail (261) is provided on the upper end surface of the intermediate column (26), a swing rod (31) is slidably installed in the swing cylinder (32), and the end of the swing cylinder (32) is installed on the motor (33).

2. The vertical shaft defect inspection device capable of stable detection according to claim 1 is characterized in that: The bottom end of the rear plate (22) is provided with a bottom mounting plate (221), the top end of the rear plate (22) is provided with a rear cover (222), the rear cover (222) is provided with a top mounting hole (223), and two groups of side sliders (224) are provided on both sides of the rear plate (22).

3. The vertical shaft defect inspection device capable of stable detection according to claim 2 is characterized in that: A plurality of battery groups (14) are mounted on the upper end surface of the disc (10), the extension plate (20) is mounted in the side groove (11), and two groups of side slide blocks (224) of the extension plate (20) are mounted in the side slide grooves (111).

4. The vertical shaft defect inspection device capable of stable detection according to claim 1 is characterized in that: A shaft (51) is provided on the ground (50), and a line pipe (52) and a ladder room (53) are provided in the shaft (51). An upper platform (54) is installed on the ground (50), and a concave hole (55) is provided on the upper platform (54). A plurality of positioning steel wire ropes (56) are provided on the lower end surface of the upper platform (54). A lifting motor (57) is installed in the concave hole (55), and a lifting steel wire rope (58) is installed in the lifting motor (57). The end of the lifting steel wire rope (58) is installed in the lifting steel wire rope hole (131) of the disc (10), and the disc (10) is installed at the plurality of positioning steel wire ropes (56) through the plurality of positioning steel wire rope holes (101).

5. The vertical shaft defect inspection device capable of stable detection according to claim 1 is characterized in that: A lead screw (271) is provided on the motor 1 (27), a sprocket 1 (282) and a gear 3 (281) are provided at the end of the motor 2 (28), the gear 3 (281) is a toothless gear, a chain 1 (283) is installed on the sprocket 1 (282) and the sprocket 2 (285), a transmission shaft (284) is provided with a sprocket 2 (285) and a gear 4 (286), a driven shaft (29) is provided with a gear 5 (291) and a gear 6 (292), the gear 1 (242) can mesh with the tooth portion of the gear 3 (281), and the gear 2 (251) meshes with the gear 5 (291).

6. The vertical shaft defect inspection device capable of stable detection according to claim 5 is characterized in that: Motor 2 (28) is mounted on the lower end of the extension plate (20), the output shaft of motor 2 (28) passes through mounting hole 2 (231), the transmission shaft (284) is mounted in mounting hole 3 (232), the driven shaft (29) is mounted in mounting hole 4 (233), motor 1 (27) is fixedly mounted on the bottom of the side groove (11), the lead screw (271) is mounted in the threaded hole at the bottom mounting plate (221), and the end of the lead screw (271) is mounted in the mounting hole (121) of the mounting seat (12).

7. The vertical shaft defect inspection device capable of stable detection according to claim 1 is characterized in that: The bottom end of the mobile ground penetrating radar (30) is provided with an arc-shaped slider (301), the upper end of the mobile ground penetrating radar (30) is provided with an upper shaft (302), a motor (33) is installed on the lower end surface of the rear cover (222), the output shaft of the motor (33) passes through the top mounting hole (223), the motor (33) is connected to the end of the swing cylinder (32), the mobile ground penetrating radar (30) is installed in the arc-shaped movable rail (261) of the middle column (26) through the arc-shaped slider (301), and the swing rod (31) is installed on the upper shaft (302) through the swing end (311).

8. The vertical shaft defect inspection device capable of stable detection according to claim 1 is characterized in that: A three-dimensional laser scanner (41) is installed at the lower end of the inspection lower part (40), and an inspection lower plate (42) is provided at the lower end of the inspection lower part (40). A CCD camera (43) and a light source (44) are installed at the lower end of the inspection lower plate (42).

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