Drilling peeping device and using method thereof

By introducing a crawling mechanism, a linear guard, and a rotating guard into the borehole inspection device, the problem of the probe being hit or blocked by debris during drilling is solved, enabling the probe to advance smoothly and be protected, thus improving the durability of the equipment.

CN122014227APending Publication Date: 2026-05-12HUADIAN COAL IND GRP DIGITAL INTELLIGENCE TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUADIAN COAL IND GRP DIGITAL INTELLIGENCE TECH CO LTD
Filing Date
2026-04-14
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

During the exploration process, drilling scouting devices are easily hit by debris inside the hole or blocked by piles of rubble, which can prevent them from moving forward or cause them to be scratched.

Method used

A drilling inspection device was designed, equipped with a crawling mechanism, a linear guard, and a rotating guard. The crawling mechanism is used to drive the probe forward and backward, the linear guard controls the exposure and coverage of the probe end, and the rotating guard forms a cone to clear obstructions when closed and forms a protective barrier to isolate debris when open.

Benefits of technology

This ensures the probe moves forward smoothly, avoiding being hit or scratched by debris, thus improving the ease of operation and the durability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of drilling peeping, in particular to a drilling peeping device and a using method thereof. The drilling peeping device comprises a crawling mechanism located at the wiring end of a probe body and a linear protection part located at the detection end of the probe body, the crawling mechanism is used for driving the probe body to advance and retreat in a detection hole, the linear protection part is used for controlling the detection end to be exposed and covered, and the drilling peeping device further comprises a rotating protection part located on the linear protection part. The rotary protection piece has a closed state and an open state, when the rotary protection piece is closed, the opening and closing blades closed into the cone are controlled to rotate, the probe body is wrapped in the cone, the tip of the cone is utilized to accelerate impact and break through a gravel pile, and it is ensured that the probe body smoothly advances; in the opening state, the opened opening and closing blades are controlled to rotate around the periphery of the probe body to form a protective barrier to isolate fragments falling from the upper portion, and therefore the probe body is protected and prevented from being scratched.
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Description

Technical Field

[0001] This invention relates to the field of borehole inspection technology, specifically a borehole inspection device and its usage method. Background Technology

[0002] In the construction of underground coal mines, drilling operations are required at corresponding locations in underground tunnels, roadways, chambers, and coal seams. Depending on their location, some holes are used for drilling to extract gas and reduce gas outbursts from the coal seam to effectively prevent gas accidents; others are used to install anchor bolts to fix the walls.

[0003] The borehole inspection device consists of a probe body, a probe cable, and a probe reel. To better understand the progress of the drilling operation, on-site operators need to use the borehole inspection device to enter the borehole for probing. During this process, the probe may be hit by randomly falling debris inside the borehole, or its path may be blocked by piles of debris, preventing it from advancing and causing it to be scratched by the debris. Summary of the Invention

[0004] The purpose of this invention is to provide a borehole inspection device and its usage method to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a borehole inspection device, comprising: The probe body has a probe cable connected to its terminals; The crawling mechanism, located at the wiring terminal of the probe body, is used to drive the probe body to move forward and backward within the detection hole; Linear protective components are installed at the detection end of the probe body to control whether the detection end is exposed or covered. The rotating protective component, located at the detection end of the probe body and connected to the linear protective component, can open and close. When the linear protective component covers the detection end, the rotating protective component closes to form a cone, clearing obstructions in front through the tip of the cone. When the linear protective component exposes the detection end, the rotating protective component opens to form a barrier around the detection end to isolate debris.

[0006] Furthermore, the linear protective component includes a sleeve and a power component. The sleeve is fitted onto the probe body, and the power component is used to move the sleeve along the probe body toward the wiring terminal or the detection terminal. The detection terminal of the probe body can be exposed by the sleeve or covered by the sleeve.

[0007] Furthermore, the power component includes a rack arranged along the length of the sleeve inside the sleeve, and a motor is provided on the probe body. The output shaft of the motor is connected to a spur gear, which meshes with the rack.

[0008] Furthermore, the rotating protective component includes an adjusting component and an opening / closing component arranged side by side on the sleeve. The adjusting component can be inserted into or detached from the opening / closing component. When the adjusting component is inserted into the opening / closing component, the opening / closing component drives the adjusting component to rotate synchronously around the sleeve. When the adjusting component is separated from the opening / closing component, the probe body is exposed and pushes the opening / closing component to open outward. The opening / closing component rotates around the probe body to form a protective barrier and isolate fragments.

[0009] Furthermore, the opening and closing component includes a driving part and an opening and closing part. The driving part is located on the sleeve, and the opening and closing part is controlled to rotate around the probe body by the driving part.

[0010] Furthermore, the driving unit includes an internal gear ring, which is rotatably sleeved on the sleeve. The internal gear ring is located on the side of the adjusting member closer to the detection end. A second motor is provided on the sleeve, and a second spur gear is provided on the output shaft of the second motor. The second spur gear meshes with the internal gear ring.

[0011] Furthermore, the opening and closing part includes opening and closing blades and a rotating shaft. Several opening and closing blades are provided, and several bearing seats are provided on the internal gear ring. The rotating end of the opening and closing blade is connected to the bearing seat through the rotating shaft, and the rotating shaft is rotatably connected to the bearing seat through a torsion spring. A support block is provided on the inner surface of the opening and closing blade near the rotating end. The inner surface of the support block is an inclined surface that slopes from the rotating end of the opening and closing blade towards the free end. During the exposure of the probe body, the probe body pushes against the support block, and the support block pushes the opening and closing blade to open outward. When the opening and closing blades are closed, several opening and closing blades form a closed cone, and the free ends of the opening and closing blades are closed.

[0012] Furthermore, the adjusting component includes a rotating ring and a telescopic component one, the rotating ring being rotatably sleeved on the sleeve; the telescopic component one is located on the rotating ring, and the driving end of the telescopic component one points towards the detection end of the probe body; The rotating end of the opening and closing blade is provided with a positioning through hole. When the opening and closing blade is closed, the telescopic member is inserted into the positioning through hole.

[0013] Furthermore, the crawling mechanism includes a second telescopic component, which is located at the wiring terminal of the probe body. The telescopic end of the second telescopic component is provided with a bracket, and a third telescopic component is symmetrically provided on the bracket. The telescopic end of the third telescopic component is provided with a stop block.

[0014] A method of using a borehole inspection device, the method comprising: Step S1: With the end of the probe body with the rotating protective part facing the detection hole, place the entire device into the detection hole; Step S2: Start the crawling mechanism to drive the probe body forward in the detection hole for detection; analyze the real-time image collected by the probe body; if there is an obstacle in front and it cannot move forward, proceed to step S3; if there is no obstacle in front, proceed to step S4. Step S3: Start the operation of the linear protection component, which covers the detection end of the probe body and triggers the opening and closing component to close and form a cone. Start the operation of the adjustment component, which connects with the opening and closing component and clears the obstruction in front through the tip of the cone. After the road ahead is cleared and unobstructed, start the linear protection component to run in reverse, which exposes the detection end of the probe body and triggers the opening and closing component to open, forming a barrier around the detection end to isolate the debris and form a cone. Then return to step S2. Step S4: The crawling mechanism continues to drive the probe body forward until it reaches the end of the detection hole, completing the detection; the crawling mechanism reverses and drives the probe body out of the detection hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The drilling inspection device of the present invention includes a crawling mechanism located at the wiring terminal of the probe body and a linear protective component located at the detection end of the probe body. The crawling mechanism is used to drive the probe body to move forward and backward within the detection hole, and the linear protective component is used to control the exposure and coverage of the detection end. It also includes a rotating protective component located on the linear protective component. In this invention, the rotating protective component has two states: closed and open. When closed, the opening and closing blades of the cone are controlled to rotate, enclosing the probe body within the cone. The tip of the cone accelerates the impact and breaks through the pile of rubble, ensuring the probe body moves forward smoothly. When open, the opening and closing blades are controlled to rotate around the periphery of the probe body, forming a protective barrier to isolate falling debris, thereby protecting the probe body and preventing it from being scratched. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the rotating mechanism in this invention when it is open; Figure 2 This is a schematic diagram of the rotating mechanism in the present invention when it is closed; Figure 3 for Figure 2 Enlarged view at point B in the middle; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 This is a partial cross-sectional view of the present invention; Figure 6 for Figure 5 Enlarged view at point D; Figure 7 This is a schematic diagram of the internal toothed ring in this invention; In the diagram: 1. Linear protective component; 2. Rotary protective component; 4. Crawling mechanism; 101. Probe body; 102. Probe cable; 11. Sleeve; 12. Rack; 13. Motor 1; 14. Circular Gear 1; 20. Adjusting component; 201. Rotary ring; 202. Telescopic component one; 203. Positioning through hole; 30. Opening and closing parts; 31. Internal gear ring; 32. Motor II; 33. Circular gear II; 34. Opening and closing blades; 35. Rotating shaft; 36. Shaft seat; 37. Support block; 38. Inclined surface; 41. Telescopic part II; 42. Telescopic part III; 43. Abutment block; 44. Bracket. Detailed Implementation

[0017] 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.

[0018] See Figures 1-7 .

[0019] This invention provides a borehole inspection device, comprising: The probe body 101 has a probe wire 102 connected to its terminal; The crawling mechanism 4 is located at the wiring terminal of the probe body 101 and is used to drive the probe body 101 to move forward and backward within the detection hole. Linear protection component 1 is installed at the detection end of the probe body 101 to control the exposure and coverage of the detection end; The rotating protective component 2 is located at the detection end of the probe body 101 and is connected to the linear protective component 1. It can open and close. When the linear protective component 1 covers the detection end, the rotating protective component 2 closes to form a cone, and the tip of the cone clears the obstruction in front. When the linear protective component 1 exposes the detection end, the rotating protective component 2 opens to form a barrier around the detection end to isolate debris.

[0020] In one embodiment, the linear protection member 1 includes a sleeve 11 and a power member. The sleeve 11 is sleeved on the probe body 101, and the power member is used to move the sleeve 11 along the probe body 101 toward the terminal or the detection end. The detection end of the probe body 101 can be exposed by the sleeve 11 or covered by the sleeve 11.

[0021] In one embodiment, the power component includes a rack 12, which is arranged inside the sleeve 11 along the length direction of the sleeve 11. The probe body 101 is provided with a motor 13, and the output shaft of the motor 13 is connected to a spur gear 14, which meshes with the rack 12.

[0022] In one embodiment, the rotating protective member 2 includes an adjusting member 20 and an opening / closing member 30 arranged side by side on the sleeve 11. The adjusting member 20 can be inserted into or detached from the opening / closing member 30. When the adjusting member 20 is inserted into the opening / closing member 30, the opening / closing member 30 drives the adjusting member 20 to rotate synchronously around the sleeve 11. When the adjusting member 20 is separated from the opening / closing member 30, the probe body 101 is exposed and pushes the opening / closing member 30 to open outward. The opening / closing member 30 rotates around the probe body 101 to form a protective barrier and isolate fragments.

[0023] In one embodiment, the opening / closing member 30 includes a driving part and an opening / closing part. The driving part is located on the sleeve 11 and controls the opening / closing part to rotate around the probe body 101.

[0024] The driving unit includes an internal gear ring 31, and the sleeve 11 is rotatably sleeved with the internal gear ring 31. The internal gear ring 31 is located on the side of the adjusting member 20 near the detection end. The sleeve 11 is provided with a second motor 32, and the output shaft of the second motor 32 is provided with a second spur gear 33, which meshes with the internal gear ring 31.

[0025] Specifically, the opening and closing part includes opening and closing blades 34 and rotating shafts 35. Several opening and closing blades 34 are provided, and several bearing seats 36 are provided on the internal toothed ring 31. The rotating end of the opening and closing blades 34 is connected to the bearing seats 36 through the rotating shafts 35, and the rotating shafts 35 are rotatably connected to the bearing seats 36 through torsion springs. A support block 37 is provided on the inner surface of the opening and closing blade 34 near the rotating end. The inner surface of the support block 37 is an inclined surface 38 that slopes from the rotating end of the opening and closing blade 34 toward the free end. When the probe body 101 is exposed, it pushes against the support block 37, and the support block 37 pushes the opening and closing blade 34 to open outward. When the opening and closing blades 34 are closed, a plurality of the opening and closing blades 34 form a closed cone, and the free ends of the opening and closing blades 34 are closed.

[0026] In one embodiment, the adjusting member 20 includes a rotating ring 201 and a telescopic member 202. The rotating ring 201 is rotatably sleeved on the sleeve 11. The telescopic member 202 is located on the rotating ring 201, and the driving end of the telescopic member 202 points to the detection end of the probe body 101. The rotating end of the opening and closing blade 34 is provided with a positioning through hole 203. When the opening and closing blade 34 is closed, the telescopic member 202 is inserted into the positioning through hole 203.

[0027] Furthermore, the crawling mechanism 4 includes a second telescopic component 41, which is located at the wiring terminal of the probe body 101. The telescopic end of the second telescopic component 41 is provided with a bracket 44, and the bracket 44 is symmetrically provided with a third telescopic component 42. The telescopic end of the third telescopic component 42 is provided with an abutment block 43 for abutting against the inner wall of the detection hole.

[0028] A method of using a borehole inspection device, the method comprising: Step S1: Position the probe body 101 with the rotating protective part 2 towards the detection hole and place the entire device into the detection hole; start the crawling mechanism 4 to drive the probe body 101 forward in the detection hole to perform detection. Step S2: Analyze the real-time image captured by the probe body 101; for example, analyze whether there are any obstructions by manually identifying the captured image; if there are obstructions in front and you cannot move forward, proceed to step S3; if there are no obstructions in front, proceed to step S4. Step S3: Start the operation of the linear protection component 1, so that the detection end of the probe body 101 is covered, and trigger the opening and closing component 30 to close to form a cone. Start the operation of the adjustment component 20, so that the adjustment component 20 is inserted into the opening and closing component 30, and the obstruction in front is cleared through the tip of the cone. After the road in front is cleared and unobstructed, start the linear protection component 1 to run in reverse, so that the detection end of the probe body 101 is exposed, and trigger the opening and closing component 30 to open, forming a barrier around the detection end to isolate the debris and form a cone. Then return to step S2. Step S4: The crawling mechanism 4 continues to drive the probe body 101 forward until it reaches the end of the detection hole, completing the detection; the crawling mechanism 4 reverses and drives the probe body 101 out of the detection hole.

[0029] In practical use, the end of the probe body 101 with the rotating protective part 2 is placed towards the detection hole, and the entire device is placed into the detection hole; the linear protective part 1 operates to expose the detection end of the probe body 101; the adjusting part 20 disengages from the disengaging part 30, and the output shaft of the motor 13 drives the spur gear 14 to rotate. The spur gear 14 meshes with the rack 12, driving the sleeve 11 and the rotating protective part 2 to move towards the terminal of the probe body 101. During the exposure of the detection end of the probe body 101, it pushes against the inclined surface 38 of the support block 37. The probe body 101 pushes the free end of the opening and closing blade 34 to rotate outward through the support block 37 to open. The torsion spring twists until the inclined surface 38 completely passes the detection end of the probe body 101. At this time, the opening and closing blade 34 stops opening outward. The linear protective component 1 continues to drive the rotating protective component 2 to move toward the wiring terminal of the probe body 101, so that the free end of the opening and closing blade 34 is still 1cm away from overlapping with the detection end of the probe body 101. In this way, the free end of the opening and closing blade 34 will contact the obstruction in front before the detection end of the probe body 101. Drive unit operation: The output shaft of motor 2 32 drives the spur gear 2 33 to rotate. The spur gear 2 33 meshes with the internal gear ring 31, driving the internal gear ring 31 to rotate. The internal gear ring 31 drives the shaft seat 36, rotating shaft 35, torsion spring, opening and closing blade 34 and support block 37 to rotate synchronously. The rotation speed can be controlled. The rotating opening and closing blade 34 forms a protective barrier to block falling debris from above and prevent it from hitting the probe body 101. The rotating ring 201 supports the probe body and prevents the free end of the opening and closing blade 34 from contacting the hole wall during rotation. Because of the torsion of the torsion spring, the opening and closing blade 34 will not open excessively to the outside due to centrifugal force during rotation. The crawling mechanism 4 drives the probe body 101 forward: the telescopic component 3 42 extends and drives the abutment block 43 to abut against the inner wall of the detection hole for positioning; the telescopic component 2 41 extends and pushes the probe body 101 forward; the telescopic component 3 42 retracts and does not abut against the inner wall of the detection hole; the telescopic component 3 42 retracts and drives the telescopic component 2 41 forward; the operation is repeated multiple times to gradually drive the probe body 101 forward. During the forward movement, if an obstacle is encountered, the crawling mechanism 4 causes the probe body 101 to be obstructed. The linear protective component 1 drives the rotating protective component 2 to move towards the detection end of the probe body 101 and reset. After losing the support of the probe body 101 for the opening and closing part, the torsion spring rotates in the opposite direction to reset, causing the opening and closing blade 34 to rotate in the opposite direction to reset. The opening and closing blade 34 closes, and the telescopic component 202 extends and inserts into the positioning through hole 203, fixing the opening and closing blade 34 in the closed state. The drive unit then rotates the closed cone-shaped opening and closing blade 34, which, in conjunction with the crawling mechanism 4, pushes forward, causing the tip of the cone to break through the obstacle. This ensures that the detection path ahead is unobstructed.

[0030] The process of the crawling mechanism 4 driving the probe body 101 out of the hole is as follows: the telescopic component 3 42 extends and drives the abutment block 43 to abut against the inner wall of the detection hole for positioning; the telescopic component 2 41 retracts and pulls the probe body 101 back a certain distance; the telescopic component 3 42 retracts and does not abut against the inner wall of the detection hole; the telescopic component 3 42 extends and drives the telescopic component 2 41 to move towards the opening of the hole. This operation is repeated multiple times to gradually drive the probe body 101 out of the hole. During use, no external force is needed to push the probe body 101 to move in the detection hole, which improves the convenience of operation.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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.

[0032] It should be noted that if the embodiments of the invention involve directional indicators such as up and down, the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the figure. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more.

[0034] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.

Claims

1. A drilling inspection device, characterized in that, include: The probe body (101) has a probe wire (102) connected to its terminal. The crawling mechanism (4), located at the wiring terminal of the probe body (101), is used to drive the probe body (101) to move forward and backward within the detection hole; A linear protective element (1) is installed at the detection end of the probe body (101) to control the exposure and coverage of the detection end; The rotating protective component (2) is located at the detection end of the probe body (101) and is connected to the linear protective component (1). It can open and close. When the linear protective component (1) covers the detection end, the rotating protective component (2) closes to form a cone and clears the obstruction in front through the tip of the cone. When the linear protective component (1) exposes the detection end, the rotating protective component (2) opens to form a barrier around the detection end to isolate the debris.

2. The borehole inspection device according to claim 1, characterized in that, The linear protective component (1) includes a sleeve (11) and a power component. The sleeve (11) is fitted onto the probe body (101). The power component is used to move the sleeve (11) along the probe body (101) toward the terminal or the detection end. The detection end of the probe body (101) can be exposed by the sleeve (11) or covered by the sleeve (11).

3. The borehole inspection device according to claim 2, characterized in that, The power component includes a rack (12), which is arranged inside the sleeve (11) along the length direction of the sleeve (11). The probe body (101) is provided with a motor (13), and the output shaft of the motor (13) is connected to a spur gear (14), which meshes with the rack (12).

4. The borehole inspection device according to claim 1, characterized in that, The rotating protective component (2) includes an adjusting component (20) and an opening / closing component (30) arranged side by side on the sleeve (11). The adjusting component (20) can be inserted into or detached from the opening / closing component (30). When the adjusting component (20) is inserted into the opening / closing component (30), the opening / closing component (30) drives the adjusting component (20) to rotate synchronously around the sleeve (11). When the adjusting component (20) is separated from the opening / closing component (30), the probe body (101) is exposed and pushes the opening / closing component (30) to open outward. The opening / closing component (30) rotates around the probe body (101) to form a protective barrier and isolate fragments.

5. The borehole inspection device according to claim 4, characterized in that, The opening and closing component (30) includes a driving part and an opening and closing part. The driving part is located on the sleeve (11) and controls the opening and closing part to rotate around the probe body (101).

6. The borehole inspection device according to claim 5, characterized in that, The drive unit includes an internal gear ring (31), and the sleeve (11) is rotatably sleeved with the internal gear ring (31). The internal gear ring (31) is located on the side of the adjusting member (20) near the detection end. The sleeve (11) is provided with a second motor (32), and the output shaft of the second motor (32) is provided with a second spur gear (33). The second spur gear (33) meshes with the internal gear ring (31).

7. The borehole inspection device according to claim 5, characterized in that, The opening and closing part includes opening and closing blades (34) and rotating shaft (35). There are several opening and closing blades (34). Several bearing seats (36) are provided on the internal gear ring (31). The rotating end of the opening and closing blade (34) is connected to the bearing seat (36) through the rotating shaft (35). The rotating shaft (35) is rotatably connected to the bearing seat (36) through a torsion spring. The inner surface of the opening and closing blade (34) near the rotating end is provided with a support block (37). The inner surface of the support block (37) is an inclined surface (38) that slopes from the rotating end of the opening and closing blade (34) to the free end. When the probe body (101) is exposed, it pushes against the support block (37) and pushes the opening and closing blade (34) to open outward through the support block (37). When the opening and closing blades (34) are closed, a number of the opening and closing blades (34) form a closed cone, and the free end of the opening and closing blades (34) is closed.

8. The borehole inspection device according to claim 7, characterized in that, The adjusting component (20) includes a rotating ring (201) and a telescopic component (202). The rotating ring (201) is rotatably sleeved on the sleeve (11). The telescopic component (202) is located on the rotating ring (201), and the driving end of the telescopic component (202) points to the detection end of the probe body (101). The rotating end of the opening and closing blade (34) is provided with a positioning through hole (203). When the opening and closing blade (34) is closed, the telescopic member (202) is inserted into the positioning through hole (203).

9. The borehole inspection device and its method of use according to claim 8, characterized in that, The crawling mechanism (4) includes a second telescopic component (41), which is located at the wiring terminal of the probe body (101). The telescopic end of the second telescopic component (41) is provided with a bracket (44), and the bracket (44) is symmetrically provided with a third telescopic component (42). The telescopic end of the third telescopic component (42) is provided with an abutment block (43).

10. A method of using a borehole inspection device, applied to the borehole inspection device according to any one of claims 1-10, characterized in that, The method includes: Step S1: Position the probe body (101) with the rotating protective part (2) towards the detection hole and place the entire device into the detection hole; start the crawling mechanism (4) to drive the probe body (101) to move forward in the detection hole for detection; Step S2: Start the crawling mechanism (4) to drive the probe body (101) to move forward in the detection hole to perform detection; analyze the real-time image collected by the probe body (101); if there is an obstacle in front and it cannot move forward, then execute step S3; if there is no obstacle in front, then execute step S4. Step S3: Start the operation of the straight protection component (1) to cover the detection end of the probe body (101) and trigger the opening and closing component (30) to close to form a cone. Start the operation of the adjustment component (20) to connect the adjustment component (20) with the opening and closing component (30) and clear the obstruction in front through the tip of the cone. After the road in front is cleared and unobstructed, start the straight protection component (1) to run in reverse to expose the detection end of the probe body (101) and trigger the opening and closing component (30) to open, forming a barrier around the detection end to isolate the fragments and form a cone. Return to step S1 and return to step S2. Step S4: The crawling mechanism (4) continues to drive the probe body (101) forward until it reaches the end of the detection hole to complete the detection; the crawling mechanism (4) reverses and drives the probe body (101) out of the detection hole.