Mining antifouling drilling peeping instrument probe protection device with drainage function

Abstract

A mining antifouling drilling peeping instrument probe protection device with a drainage function is characterized in that an annular groove is formed in the tail section of a fixed supporting sleeve, a mounting channel is formed in a front sleeve body, and a strip-shaped groove is formed in the outer surface of a rear sleeve body; the main drainage straight pipe is inserted into the mounting channel, a main drainage section is formed at the head end of the main drainage straight pipe, the multiple annular drainage auxiliary pipes are sequentially connected to the front portion of the main drainage section at intervals to form an annular water absorption part and fixedly connected with the four main drainage straight pipes in a mutually-communicated mode, and water inlet holes are formed in the annular drainage auxiliary pipes in the annular direction; the drainage hose is inserted into the strip-shaped groove and connected with the main drainage straight pipe, and the tail end of the drainage hose is connected with the water pump through the five-way connecting piece and the communicating pipeline; the annular water absorption fence is composed of a rough polyester cotton pad wrapping the outer portion of the annular drainage auxiliary pipe. The annular cleaning fence is composed of a rough polyester cotton pad arranged outside the annular groove in a sleeving mode. And the peeping instrument body is fixed in the fixed supporting sleeve. The device can protect the peeping instrument and can ensure the imaging quality and effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of borehole inspection instruments, specifically relating to a protective device for the probe of a mine anti-pollution borehole inspection instrument with drainage function. Background Technology

[0002] In underground mining, the stability of roadways has always been a core concern for coal mine scholars and practitioners. With the continuous depletion of shallow coal resources, the focus of mining is shifting towards deeper areas. Deep roadways face challenges such as complex rock structures, large soft rock deformations, and high tectonic stresses, leading to limited tunneling speeds, increased support costs, and impacts on production and efficiency. Therefore, ensuring the stability of the surrounding rock, reducing roadway support costs, and minimizing roadway deformation and repair work have become crucial for safe coal mine production. Among the many factors affecting roadway stability, discontinuous structural planes within the rock mass play a vital role. These discontinuous structural planes control the deformation, failure, and mechanical properties of the rock mass, thereby influencing the occurrence of geological disasters in the mine.

[0003] To effectively detect the structural characteristics and fracture development of rock masses, borehole cameras have been widely used as an advanced detection tool. In the process of using a borehole camera, a drilling rig first drills a hole in the rock strata, then a stainless steel probe is used to insert a camera into the hole. This allows for direct observation of the lithology, rock mass structure, and borehole formation effect within the surrounding rock of the tunnel, providing an effective way to understand the internal structure of the tunnel's surrounding rock. The images of the rock strata structure inside the borehole captured by the camera are transmitted to the main unit via wires, processed and analyzed, and then displayed on a screen. This technology can comprehensively detect the occurrence and development of faults and fractures in underground engineering rock masses and coal seams, coal seam occurrence conditions, solution channels and caves, water-bearing fracture zones, and the location of their outlets, providing a reliable basis for coal mine roof management, tunnel support design, and surrounding rock stability evaluation. The application of borehole cameras allows for a more accurate understanding of the geological conditions of the surrounding rock in tunnels, providing a scientific basis for tunnel support design. This not only helps improve the stability of the roadway but also effectively reduces support costs, roadway deformation, and the amount of rework, thereby ensuring safe coal mine production and meeting actual production needs. In deep roadways, the application of borehole inspection instruments is particularly important, as they can assist in identifying and assessing the potential instability of the surrounding rock, providing reliable technical guidance for taking appropriate support measures.

[0004] Then, due to the low strength, loose and broken rock strata in the tunnel, and the presence of water in some strata, small pieces of rock debris, rock powder, mud, or flowing water easily fall onto the camera lens during observation. This causes dust to settle on the surface of the borehole sighting instrument's viewing mirror or generates water mist, resulting in unclear imaging, affecting the observation effect, and reducing work efficiency. With the continuous development of borehole sighting instrument technology, many specialized protective devices have been developed to effectively ensure imaging quality. However, while most protective devices have a certain cleaning effect, their size is usually quite large, which to some extent affects the movement of the sighting instrument. Furthermore, they cannot effectively drain accumulated water during the cleaning process, thus failing to achieve ideal imaging results in conditions with significant water accumulation. Therefore, there is an urgent need for a new type of mine-use anti-fouling borehole sighting instrument probe protection device with drainage function. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a protective device for the probe of a mine anti-fouling borehole inspection instrument with drainage function. The probe protection device has a simple structure and low manufacturing cost. It has the effect of protecting the inspection instrument body and can effectively ensure the imaging quality and effect of the inspection instrument body. It can effectively solve the problem of water accumulation affecting the imaging effect of the inspection instrument probe and ensure the normal imaging operation of the inspection instrument.

[0006] To achieve the above objectives, this utility model provides a protective device for the probe of a mine anti-pollution borehole inspection instrument with drainage function, including the inspection instrument body, a fixed support sleeve, a drainage pipe network, an annular water absorption enclosure, an annular cleaning enclosure, and a water pump.

[0007] The fixed support sleeve has an annular groove at its end, and four installation channels are evenly distributed circumferentially inside the sleeve body in the portion before the annular groove, and four strip grooves are evenly distributed circumferentially on the outer surface of the sleeve body in the portion after the annular groove; the first end of the installation channel extends to the first end of the fixed support sleeve, and its second end extends to the first end of the annular groove; the first end of the strip groove extends to the second end of the annular groove, and its second end extends to the second end of the fixed support sleeve.

[0008] The drainage network includes main drainage straight pipes, annular drainage secondary pipes, drainage hoses, five-way connectors, and connecting pipes. Four main drainage straight pipes are respectively inserted into four installation channels, and their ends extend into the first section of the annular groove. Their first ends extend to the outside of the first end of the fixed support sleeve to form the main drainage section. Multiple annular drainage secondary pipes are sequentially and spaced apart in front of the main drainage section to form annular water intake sections. Each annular drainage secondary pipe is simultaneously and fixedly connected to the four main drainage straight pipes in a through manner. At the same time, multiple water inlet holes are evenly opened on the annular side of each annular drainage secondary pipe. Four drainage hoses are respectively inserted into four strip-shaped grooves, and their first ends are respectively connected to the ends of the four main drainage straight pipes. Their ends are respectively connected to the four water inlets of the five-way connector. The first end of the connecting pipe is connected to the water outlet of the five-way connector.

[0009] The annular absorbent enclosure is composed of a rough polyester-cotton pad covering the outside of multiple annular drainage sub-pipes;

[0010] The annular cleaning enclosure consists of a rough polyester-cotton pad fitted over the annular groove;

[0011] The water inlet of the pump is connected to the end of the connecting pipeline;

[0012] The main body of the spectator is fixedly inserted into the inner cavity of the fixed support sleeve, with its head end flush with the front end of the fixed support sleeve.

[0013] Furthermore, in order to facilitate the quick assembly and disassembly of the fixed support sleeve and the viewing instrument body, multiple locking bolts are also included; the middle section of the fixed support sleeve is provided with multiple radial threaded holes evenly distributed around its circumference, and the multiple locking bolts are respectively inserted into the multiple radial threaded holes through thread engagement, thereby fixing the viewing instrument body in the inner cavity of the fixed support sleeve.

[0014] Furthermore, to facilitate pushing and pulling out the viewing device, a probe is connected to the end of the viewing device body, and a cable connected to the viewing device body is threaded through the inner cavity of the probe.

[0015] As a preferred option, the pump is a mining pump.

[0016] Furthermore, in order to facilitate the use of the nuts of multiple locking bolts to center the viewing device body, the nuts of multiple locking bolts are at the same distance from the outer surface of the fixed support sleeve.

[0017] As a preferred option, the four mounting channels and four strip grooves are arranged in a one-to-one correspondence.

[0018] This invention features an annular groove at the end of the fixed support sleeve, facilitating the positioning and fixing of the annular cleaning barrier. This effectively prevents the barrier from detaching during pushing or pulling. When the annular cleaning barrier is fitted over the annular groove, it allows for the cleaning of small rock fragments and coal dust that have fallen from the surrounding rock during pushing and pulling. This effectively prevents the viewing instrument probe from being obstructed or damaged by rock fragments or coal dust, ensuring the imaging effect and quality of the viewing instrument. Four installation channels are provided inside the first section of the fixed support sleeve, facilitating the fixing and connection of four main drainage straight pipes to the fixed support sleeve. Four strip-shaped grooves are provided on the outer surface of the end section of the fixed support sleeve, which can facilitate the limiting and fixing of the four drainage hoses to the outside of the fixed support sleeve. At the same time, it can facilitate the connection between the drainage hose and the main drainage straight pipe by utilizing the space in the annular groove. When the annular cleaning enclosure is fitted on the outside of the annular groove, it can also be used to protect the connection between the main drainage straight pipe and the drainage hose. Multiple annular drainage secondary pipes are connected to the front of the first section of the four main drainage straight pipes. Multiple water inlet holes are opened on the annular drainage secondary pipes in the circumferential direction. An annular water suction part can be formed at the front end of the fixed support sleeve. On this basis, an annular water suction enclosure is fitted on the outside of the annular water suction part. In this way, on the one hand, the water inlet holes on the first end of the main drainage straight pipe and the annular drainage secondary pipes can be used to directly suck up the water in the holes. This can help relieve the drainage pressure at the first end of the main drainage straight pipe by using the water inlet holes on the annular drainage secondary pipes. On the other hand, the water in the water inlet holes can be sucked up by the annular water suction enclosure and collected near the water inlet holes. At the same time, the annular water suction enclosure can help prevent large particles from clogging the water suction holes. Therefore, even if the first end of the main drainage straight pipe is blocked, the water inlet holes can still be used to achieve efficient water suction and drainage operations. In addition, the annular suction baffle, fitted around the annular suction unit, can clean up small rock fragments or coal dust that have fallen from the borehole due to loosened surrounding rock during the advance of the peephole probe. This effectively prevents the peephole probe from being obstructed or damaged, ensuring the imaging quality and effectiveness of the probe. The installation of a water pump facilitates the provision of a negative pressure source, enabling efficient drainage operations.

[0019] This probe protection device features a simple structure and low manufacturing cost. It effectively protects the viewing device body and ensures the imaging quality and effect of the device, solving the problem of water accumulation affecting the probe's imaging performance and ensuring normal imaging operation. Furthermore, when the pump is running, the device simultaneously utilizes the inlet holes at the beginning of the main drainage pipe and the annular drainage secondary pipe to efficiently drain excess water from the hole during the pushing and pulling process, effectively preventing water accumulation from affecting the imaging effect. Simultaneously, the annular water-absorbing barrier at the front and the annular cleaning barrier at the end clean up any loose rock fragments or coal dust that have fallen from the surrounding rock during pushing and pulling. To a certain extent, it confines small rock fragments or coal dust between the annular water-absorbing barrier and the annular cleaning barrier, effectively preventing the probe from being affected by rock fragments or coal dust during its advancement and outward movement. This protects the probe while ensuring imaging quality and effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an exploded structural diagram of the present invention;

[0022] Figure 3 This is an assembly diagram of the fixed support sleeve, the main drainage straight pipe, and the annular water absorption enclosure in this utility model;

[0023] Figure 4 This is a schematic diagram of the annular water-absorbing part in this utility model;

[0024] Figure 5 This is a schematic diagram of the assembly of the annular water-absorbing barrier and the annular water-absorbing part in this utility model;

[0025] Figure 6 This is a cross-sectional view showing the location of the annular water-absorbing enclosure and the annular water-absorbing part in this utility model;

[0026] Figure 7 This is a schematic diagram of the final section of the fixed support sleeve in this utility model.

[0027] In the diagram: 1. Fixed support sleeve, 2. Annular groove, 3. Viewer body, 4. Annular water absorption enclosure, 5. Drainage network, 6. Main drainage straight pipe, 7. Annular drainage secondary pipe, 8. Installation channel, 9. Strip groove, 10. Water inlet hole, 11. Annular cleaning enclosure, 12. Drainage hose, 13. Five-way connector, 14. Connecting pipe, 15. Water pump, 16. Probe rod, 17. Cable, 18. Radial threaded hole, 19. Locking bolt. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] like Figures 1 to 7 As shown, the present invention provides a protective device for the probe of a mine anti-pollution borehole inspection instrument with drainage function, including an inspection instrument body 3, a fixed support sleeve 1, a drainage pipe network 5, an annular water absorption enclosure 4, an annular cleaning enclosure 11, and a water pump 15.

[0030] The fixed support sleeve 1 has an annular groove 2 at its end, and four installation channels 8 are evenly provided circumferentially inside the part of the sleeve before the annular groove 2, and four strip grooves 9 are evenly provided circumferentially on the outer surface of the sleeve after the annular groove 2; the first end of the installation channel 8 extends to the first end of the fixed support sleeve 1, and its end extends to the first end of the annular groove 2; the first end of the strip groove 9 extends to the end of the annular groove 2, and its end extends to the end of the fixed support sleeve 1.

[0031] The drainage network 5 includes a main drainage straight pipe 6, annular drainage secondary pipes 7, drainage hoses 12, a five-way connector 13, and a connecting pipe 14. The four main drainage straight pipes 6 are respectively inserted into four installation channels 8, and their ends extend into the first section of the annular groove 2. Their first ends extend to the outside of the first end of the fixed support sleeve 1 to form a main drainage section. Multiple annular drainage secondary pipes 7 are sequentially and spaced apart in front of the main drainage section to form an annular water intake section. Each annular drainage secondary pipe 7 is simultaneously and fixedly connected to the four main drainage straight pipes 6 in a through manner. At the same time, multiple water inlet holes 10 are evenly opened on the annular side of each annular drainage secondary pipe 7. The four drainage hoses 12 are respectively inserted into four strip grooves 9, and their first ends are respectively connected to the ends of the four main drainage straight pipes 6. Their ends are respectively connected to the four water inlets of the five-way connector 13. The first end of the connecting pipe 14 is connected to the water outlet of the five-way connector 13.

[0032] The annular water-absorbing enclosure 4 is composed of a rough polyester-cotton pad covering the outside of multiple annular drainage secondary pipes 7.

[0033] The annular cleaning enclosure 11 is composed of a rough polyester-cotton pad fitted outside the annular groove 2; as a preferred embodiment, the outer diameter of the annular cleaning enclosure 11 is consistent with the outer diameter of the annular absorbent enclosure 4, and is slightly larger than the outer diameter of the fixed support sleeve 1.

[0034] The water inlet of the pump 15 is connected to the end of the connecting pipe 14;

[0035] The viewing device body 3 is fixedly inserted into the inner cavity of the fixed support sleeve 1, with its head end flush with the front end of the fixed support sleeve 1.

[0036] To facilitate the quick assembly and disassembly of the fixed support sleeve and the viewing instrument body, multiple locking bolts 19 are also included; the middle section of the fixed support sleeve 1 has multiple radial threaded holes 18 evenly opened in the circumference, and the multiple locking bolts 19 are respectively inserted into the multiple radial threaded holes 18 through thread engagement, and fix the viewing instrument body 3 in the inner cavity of the fixed support sleeve 1.

[0037] To facilitate pushing and pulling out the viewing device, the outer diameter of the viewing device body 3 is adapted to the inner diameter of the fixed support sleeve 1. The end of the viewing device body 3 is connected to a probe rod 16, and a cable 17 connected to the viewing device body 3 is threaded through the inner cavity of the probe rod 16.

[0038] As a preferred embodiment, the pump 15 is a mining pump.

[0039] In order to facilitate the use of the nuts of multiple locking bolts to center the viewing instrument body, the nuts of multiple locking bolts 19 are at the same distance from the outer surface of the fixed support sleeve 1, and the outer diameter of the ring formed by the nuts of multiple locking bolts 19 is consistent with the outer diameter of the annular cleaning enclosure 11 and the outer diameter of the annular water absorption enclosure 4.

[0040] As a preferred option, the four mounting channels 8 and the four strip grooves 9 are arranged in a one-to-one correspondence.

[0041] In use, first assemble the device. Insert the four main drainage straight pipes 6 into the four installation channels 8, and then insert the four main drainage straight pipes 6 into the four strip grooves 9, connecting the four main drainage straight pipes 6 to the four main drainage straight pipes 8. Insert the viewing device body 3, which is connected to the probe rod 16 and the cable 17, into the end of the fixed support sleeve 1, making the head end of the viewing device body 3 flush with the head end of the fixed support sleeve 1. Insert multiple locking bolts 19 into multiple radial threaded holes 18 through threaded engagement, and use the rod ends of the multiple locking bolts 19 inserted into the fixed support sleeve 1 to fix and limit the viewing device body 3 in the fixed support sleeve 1. Fit the annular cleaning enclosure 11 onto the outside of the annular groove 2. Connect the connecting pipe 14 and the four drainage hoses 12 using the five-way connector 13, and connect the connecting pipe 14 to the water pump 15. After assembly, use the exposed fixed The probe rod 16 at the end of the support sleeve 1 pushes the device into the borehole. During the pushing process, the water pump 15 is started simultaneously. On the one hand, the annular cleaning barrier 11 is used to clean up small rocks and coal dust, and on the other hand, the annular water suction barrier 4 is used to absorb the water accumulated in the borehole. The annular water suction barrier 4 can also play a certain role in cleaning up small rocks and coal dust. Simultaneously, the water accumulated in the borehole and the annular water suction barrier 4 is absorbed by multiple water inlets 10 and enters the annular drainage secondary pipe 7. Then, it passes through the main drainage straight pipe 6, drainage hose 12, five-way connector 13 and connecting pipe 14 to the water pump 15. Then, it is discharged into the designated collection location. Simultaneously, the camera at the head of the viewing instrument 3 is used to collect the image data inside the borehole in real time and transmit it to the processing terminal through the cable 17. During the image data collection process, the LED light at the head of the viewing instrument 3 is turned on simultaneously for illumination to ensure the clarity of the collected images. After the image acquisition is completed, the device is pulled outward using the probe 16. During the pulling process, the annular cleaning barrier 11 is used to sweep the small rock fragments and coal dust inside the hole to the outside of the hole. At the same time, the annular water-absorbing barrier 4 can also be used to sweep the small rock fragments and coal dust.

[0042] This invention features an annular groove at the end of the fixed support sleeve, facilitating the positioning and fixing of the annular cleaning barrier. This effectively prevents the barrier from detaching during pushing or pulling. When the annular cleaning barrier is fitted over the annular groove, it allows for the cleaning of small rock fragments and coal dust that have fallen from the surrounding rock during pushing and pulling. This effectively prevents the viewing instrument probe from being obstructed or damaged by rock fragments or coal dust, ensuring the imaging effect and quality of the viewing instrument. Four installation channels are provided inside the first section of the fixed support sleeve, facilitating the fixing and connection of four main drainage straight pipes to the fixed support sleeve. Four strip-shaped grooves are provided on the outer surface of the end section of the fixed support sleeve, which can facilitate the limiting and fixing of the four drainage hoses to the outside of the fixed support sleeve. At the same time, it can facilitate the connection between the drainage hose and the main drainage straight pipe by utilizing the space in the annular groove. When the annular cleaning enclosure is fitted on the outside of the annular groove, it can also be used to protect the connection between the main drainage straight pipe and the drainage hose. Multiple annular drainage secondary pipes are connected to the front of the first section of the four main drainage straight pipes. Multiple water inlet holes are opened on the annular drainage secondary pipes in the circumferential direction. An annular water suction part can be formed at the front end of the fixed support sleeve. On this basis, an annular water suction enclosure is fitted on the outside of the annular water suction part. In this way, on the one hand, the water inlet holes on the first end of the main drainage straight pipe and the annular drainage secondary pipes can be used to directly suck up the water in the holes. This can help relieve the drainage pressure at the first end of the main drainage straight pipe by using the water inlet holes on the annular drainage secondary pipes. On the other hand, the water in the water inlet holes can be sucked up by the annular water suction enclosure and collected near the water inlet holes. At the same time, the annular water suction enclosure can help prevent large particles from clogging the water suction holes. Therefore, even if the first end of the main drainage straight pipe is blocked, the water inlet holes can still be used to achieve efficient water suction and drainage operations. In addition, the annular suction baffle, fitted around the annular suction unit, can clean up small rock fragments or coal dust that have fallen from the borehole due to loosened surrounding rock during the advance of the peephole probe. This effectively prevents the peephole probe from being obstructed or damaged, ensuring the imaging quality and effectiveness of the probe. The installation of a water pump facilitates the provision of a negative pressure source, enabling efficient drainage operations.

[0043] This probe protection device features a simple structure and low manufacturing cost. It effectively protects the viewing device body and ensures the imaging quality and effect of the device, solving the problem of water accumulation affecting the probe's imaging performance and ensuring normal imaging operation. Furthermore, when the pump is running, the device simultaneously utilizes the inlet holes at the beginning of the main drainage pipe and the annular drainage secondary pipe to efficiently drain excess water from the hole during the pushing and pulling process, effectively preventing water accumulation from affecting the imaging effect. Simultaneously, the annular water-absorbing barrier at the front and the annular cleaning barrier at the end clean up any loose rock fragments or coal dust that have fallen from the surrounding rock during pushing and pulling. To a certain extent, it confines small rock fragments or coal dust between the annular water-absorbing barrier and the annular cleaning barrier, effectively preventing the probe from being affected by rock fragments or coal dust during its advancement and outward movement. This protects the probe while ensuring imaging quality and effect.

Claims

1. A protective device for the probe of a mine anti-fouling borehole inspection instrument with drainage function, comprising an inspection instrument body (3) and a fixed support sleeve (1); characterized in that, It also includes a drainage network (5), a ring-shaped water-absorbing enclosure (4), a ring-shaped cleaning enclosure (11), and a water pump (15). The fixed support sleeve (1) has an annular groove (2) at its end, and four installation channels (8) are evenly provided in the circumferential direction inside the part of the sleeve before the annular groove (2), and four strip grooves (9) are evenly provided in the circumferential direction on the outer surface of the sleeve after the annular groove (2); the first end of the installation channel (8) extends to the first end of the fixed support sleeve (1), and its end extends to the first end of the annular groove (2); the first end of the strip groove (9) extends to the end of the annular groove (2), and its end extends to the end of the fixed support sleeve (1); The drainage network (5) includes a main drainage straight pipe (6), annular drainage secondary pipes (7), drainage hoses (12), five-way connectors (13), and connecting pipes (14). The four main drainage straight pipes (6) are respectively inserted into the four installation channels (8), and their ends extend into the first section of the annular groove (2). Their first ends extend to the outside of the first end of the fixed support sleeve (1) to form the main drainage section. Multiple annular drainage secondary pipes (7) are sequentially and spaced apart in front of the main drainage section to form annular water absorption parts, and each... The annular drainage sub-pipe (7) is simultaneously and fixedly connected to the four main drainage straight pipes (6) in a through manner. At the same time, each annular drainage sub-pipe (7) has multiple water inlet holes (10) evenly opened in the annular direction. The four drainage hoses (12) are respectively inserted into the four strip grooves (9), and their heads are respectively connected to the ends of the four main drainage straight pipes (6). Their ends are respectively connected to the four water inlets of the five-way connector (13). The head of the connecting pipe (14) is connected to the water outlet of the five-way connector (13). The annular absorbent enclosure (4) is composed of a rough polyester-cotton pad covering the outside of multiple annular drainage sub-pipes (7); The annular cleaning enclosure (11) consists of a rough polyester-cotton pad fitted outside the annular groove (2); The inlet of the pump (15) is connected to the end of the connecting pipe (14); The main body (3) of the peephole is fixedly inserted into the inner cavity of the fixed support sleeve (1), and its head end is flush with the front end of the fixed support sleeve (1).

2. The protective device for the probe of a mine anti-fouling borehole inspection instrument with drainage function according to claim 1, characterized in that, It also includes multiple locking bolts (19); the middle section of the fixed support sleeve (1) is provided with multiple radial threaded holes (18) evenly distributed around the cylinder. Multiple locking bolts (19) are respectively inserted into the multiple radial threaded holes (18) through threaded engagement, and the viewing instrument body (3) is fixed in the inner cavity of the fixed support sleeve (1).

3. A protective device for the probe of a mine anti-fouling borehole inspection instrument with drainage function as described in claim 1 or 2, characterized in that, The end of the peephole body (3) is connected to a probe (16), and a cable (17) connected to the peephole body (3) is threaded through the inner cavity of the probe (16).

4. The protective device for the probe of a mine anti-fouling borehole inspection instrument with drainage function according to claim 3, characterized in that, The pump (15) is a mining pump.

5. A protective device for the probe of a mine anti-fouling borehole inspection instrument with drainage function according to claim 2, characterized in that, The nuts of multiple locking bolts (19) are at the same distance from the outer surface of the fixed support sleeve (1).

6. The protective device for the probe of a mine anti-fouling borehole inspection instrument with drainage function according to claim 1, characterized in that, The four mounting channels (8) and four strip grooves (9) are set in a one-to-one correspondence.

Images