Drilling apparatus for constructing an escape route

Abstract

This utility model relates to the technical field of downhole rescue equipment. It provides a drilling device for constructing escape tunnels, comprising a frame; an outer tube slide horizontally slidably mounted on the frame, with a drilling outer tube rotatably mounted on it. The outer tube slide is configured such that, after sliding, it drives the drilling outer tube to rotate and drill into the soil layer, forming a rescue passage inside the drilling outer tube; an inner drilling slide horizontally slidably mounted on the frame, located to one side of the outer tube slide, with a rotating helical conveying rod rotatably mounted on it. The rotation direction of the helical conveying rod is opposite to the rotation direction of the drilling outer tube. A drill bit is located at the feed end of the helical conveying rod, which is located inside the outer tube slide. After the inner drilling slide slides, the excavated soil is discharged from inside the drilling outer tube. This utility model achieves simultaneous tunnel construction and soil removal during drilling, solving the technical problem of difficult overall soil removal in existing escape tunnel construction drilling devices.

Description

Technical Field

[0001] This utility model relates to the field of downhole rescue equipment technology, specifically to a drilling device for constructing an escape tunnel. Background Technology

[0002] In emergencies such as mine roof falls, tunnel collapses, and building collapses, rapidly constructing stable escape routes is crucial for ensuring the safety of trapped personnel. Currently, the construction of escape routes largely relies on drilling equipment to create holes in the soil or collapsed structure, followed by the installation of casing to form a protective passage. During this process, it is essential to promptly remove the soil (or broken rock and soil) generated during drilling from the hole; otherwise, soil accumulation will increase drilling resistance, cause the drill to become stuck, and even lead to hole wall collapse, severely impacting the efficiency and safety of passage construction.

[0003] Existing drilling equipment typically includes a soil removal channel inside the drill pipe and a slag outlet connected to the channel. However, in actual operations, especially when dealing with cohesive soils, water-rich sand layers, or gravel-bearing mixed formations, soil removal is quite difficult. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a drilling device for constructing escape tunnels, which solves the technical problems of low soil removal efficiency, easy clogging, and poor power adaptability of existing drilling devices for constructing escape tunnels when facing cohesive soil, water-rich sand layers, and gravel-containing mixed strata, resulting in difficulties in overall soil removal.

[0005] According to one aspect, at least one embodiment of the present invention provides a drilling device for constructing an escape route, comprising:

[0006] frame;

[0007] An outer tube slide is horizontally slidably mounted on the frame. A drilling outer tube is rotatably mounted on the outer tube slide. The outer tube slide is configured such that, after sliding, it drives the drilling outer tube to rotate and drill into the soil layer, and forms a rescue passage inside the drilling outer tube.

[0008] An internal drilling slide is horizontally slidably mounted on the frame, located on one side of the outer tube slide. A spiral conveying rod is rotatably mounted on the internal drilling slide, and the rotation direction of the spiral conveying rod is opposite to the rotation direction of the drilling outer tube. A drill bit is provided at one end of the spiral conveying rod, and the spiral conveying rod is located inside the outer tube slide. The internal drilling slide is configured such that, after sliding, the drill bit rotates the spiral conveying rod to drill into the soil layer, and the rotation of the spiral conveying rod discharges the excavated soil from inside the drilling outer tube.

[0009] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape tunnel, wherein a flared cone is provided at one end of the drilling outer tube opposite to the feed direction, the flared cone gradually widens in diameter from the connection point with the drilling outer tube, and the flared cone communicates with the interior of the drilling outer tube for discharging soil in an inclined direction.

[0010] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape route, which further includes:

[0011] A conveyor belt, which is circulated and transported on the frame and located below the outer tube slide and the inner drill slide, is used to transport and remove the soil discharged from the flared cone tube.

[0012] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape route, which further includes:

[0013] An auxiliary frame is provided on the side of the outer tube slide away from the feed direction and slides synchronously with the outer tube slide. A scraper is detachably provided on the auxiliary frame. The scraper is configured such that after being driven to swing by the auxiliary frame, one end abuts against the inner wall of the flared cone tube and scrapes off the soil attached to the inner wall of the flared cone tube as the flared cone tube rotates.

[0014] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape route, which further includes:

[0015] A soil guide component is detachably mounted on the auxiliary frame. The soil guide component has a top soil retaining plate and a bottom soil guide plate, and a soil guiding passage is formed between the top soil retaining plate and the bottom soil guide plate. The inlet of the soil guiding passage faces the outlet end of the flared cone pipe, and the outlet faces the conveyor belt. It is used to guide the soil discharged from the flared cone pipe to the conveyor belt.

[0016] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape tunnel, wherein the auxiliary frame is oscillatingly mounted on the outer tube slide via a swing shaft, and the auxiliary frame is also provided with a scraper plate. The auxiliary frame is configured such that after oscillating, it drives the scraper plate to slide against the conveyor belt to scrape off the soil adhering to the conveyor belt.

[0017] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape route, wherein the scraper rod or the soil guide is bolted or snapped to the auxiliary frame.

[0018] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape route, which further includes:

[0019] A soil hauler, which is movably mounted at the bottom of the frame, is used to transport soil falling from the conveyor belt.

[0020] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape route, wherein the bottom of the frame is also provided with a walking track.

[0021] For example, at least one embodiment of this disclosure provides a drilling device for constructing an escape route, wherein the frame is also provided with lifting support legs.

[0022] The beneficial effects of the embodiments of this utility model are as follows:

[0023] In this invention, both the outer tube slide and the inner drilling slide are slidably mounted on the frame, ensuring coaxiality of their movements, preventing deviation during drilling, and improving the accuracy of rescue passage construction. The outer drilling tube and the auger conveyor rotate in opposite directions, creating opposing torques between the pressure exerted by the outer tube on the soil and the conveying force of the auger conveyor on the soil. This offsets some of the reaction forces generated during drilling, reduces frame vibration, and enhances the stability of the device. The auger conveyor is located inside the outer drilling tube, enabling internal soil discharge and preventing soil accumulation around the drilling path from affecting the advancement of the outer tube. Simultaneously, the passage formed by the outer drilling tube serves as a soil discharge channel, eliminating the need for additional soil discharge pipes and simplifying the overall structure. The outer tube slide drives the outer drilling tube to form a rescue passage, while the inner drilling slide drives the auger conveyor for drilling and soil discharge. Working in tandem, they simultaneously complete passage construction and soil discharge, improving the efficiency of escape passage construction and significantly shortening rescue preparation time compared to existing step-by-step drilling and soil discharge methods. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a drilling device for constructing an escape tunnel in one embodiment of the present invention;

[0026] Figure 2 for Figure 1 A partially enlarged structural diagram of section A in the middle;

[0027] Figure 3 A schematic diagram showing the structure of replacing the scraper bar with a soil guide component;

[0028] Figure 4 This is a schematic diagram showing the contact state between the scraper and the conveyor belt.

[0029] In the diagram: Frame-1, Outer tube slide-2, Drilling outer tube-3, Inner drilling slide-4, Spiral conveyor rod-5, Flared cone pipe-6, Conveyor belt-7, Auxiliary frame-8, Scraper rod-9, Soil guide component-10, Top retaining plate-1001, Bottom soil guide plate-1002, Soil guide passage-1003, Scraper plate-11, Soil hauler-12, Tracked vehicle-13, Support leg-14. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0031] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] like Figures 1-4 As shown, it illustrates a drilling device for constructing an escape tunnel according to one embodiment of the present invention.

[0037] The frame 1 serves as the overall support structure, with two sets of parallel slide rails horizontally positioned at its top. The bottom of the outer tube slide 2 has a slider adapted to the slide rails, allowing it to slide horizontally on the frame 1 through the cooperation of the slider and the slide rails. The outer tube slide 2 is equipped with a first drive motor, whose output shaft is connected to the drilling outer tube 3 via a gear transmission mechanism to drive the outer tube 3 to rotate. The outer wall of the drilling outer tube 3 is equipped with spiral drilling teeth. The inner drilling slide 4 also slides horizontally through a bottom slider cooperating with the slide rails on the frame 1, and is located on the side of the outer tube slide 2 closest to the power source. The inner drilling slide 4 is equipped with a second drive motor, whose output shaft is connected to a spiral conveyor rod 5 via a chain transmission mechanism. The outer wall of the spiral conveyor rod 5 is equipped with spiral blades, and the drill bit at its feed end has a conical structure with breaking teeth on its outer wall. The spiral conveyor rod 5 passes inside the drilling outer tube 3, with its axis coinciding with the axis of the drilling outer tube 3.

[0038] During operation, the outer tube slide 2 slides along the slide rail under the drive of the first hydraulic cylinder, while the first drive motor drives the drilling outer tube 3 to rotate. The drilling outer tube 3 is driven into the soil layer by the spiral drilling teeth. As the outer tube slide 2 continues to slide, the drilling outer tube 3 continues to penetrate deeper into the soil layer, forming a passage for rescue use inside. During this process, the inner drilling slide 4 slides synchronously under the drive of the second hydraulic cylinder, and the second drive motor drives the spiral conveying rod 5 to rotate in the opposite direction to the drilling outer tube 3. The drill bit contacts the soil layer and breaks the soil before the drilling outer tube 3. The spiral conveying rod 5 penetrates deeper into the soil layer as the inner drilling slide 4 slides. The broken soil is transported by the spiral blades to the end of the drilling outer tube 3 opposite to the feed and discharged.

[0039] Both the outer tube slide 2 and the inner drilling slide 4 are slidably mounted on the frame 1, ensuring their coaxiality and preventing deviation during drilling, thus improving the accuracy of rescue path construction. The outer drilling tube 3 and the auger conveyor 5 rotate in opposite directions, creating opposing torques between the compressive force of the outer tube 3 on the soil layer and the conveying force of the auger conveyor 5 on the soil. This offsets some of the reaction forces generated during drilling, reducing vibration of the frame 1 and enhancing the stability of the device. The auger conveyor 5 is located inside the outer drilling tube 3, enabling internal soil discharge and preventing soil accumulation around the drilling path from affecting the advancement of the outer tube 3. Simultaneously, the passage formed by the outer drilling tube 3 serves as a soil discharge channel, eliminating the need for additional soil discharge pipes and simplifying the overall structure. The outer tube slide 2 drives the drilling of the outer tube 3 to form a rescue passage, while the inner drilling slide 4 drives the spiral conveyor rod 5 to drill and remove soil. The two work together to complete the construction of the passage and the removal of soil while drilling, which improves the efficiency of the construction of the escape passage and significantly shortens the rescue preparation time compared with the existing step-by-step drilling and soil removal method.

[0040] In some examples, the end of the outer drilling tube 3 facing away from the feed direction is fixedly connected to the flared tapered tube 6 via a flange. The axis of the flared tapered tube 6 forms an angle with the axis of the outer drilling tube 3, and its inner wall is smooth and smoothly transitions with the inner wall of the outer drilling tube 3. The inner diameter of the smallest end of the flared tapered tube 6 is equal to the inner diameter of the outer drilling tube 3, and its cross-sectional diameter increases linearly from the connection point outwards. The outer wall of the flared tapered tube 6 is provided with reinforcing ribs, which are evenly distributed along the flaring direction and fixedly connected to the outer wall of the outer drilling tube 3. During operation, the soil conveyed by the screw conveyor 5 enters the end of the outer drilling tube 3 facing away from the feed direction and flows directly into the flared tapered tube 6. Because the flared tapered tube 6 is inclined and gradually expands in diameter, the soil moves upwards along the inner wall of the flared tapered tube 6 under its own weight and the thrust of subsequent soil, and is finally discharged from the largest end of the flared tapered tube 6, avoiding direct accumulation of soil at the outlet of the outer drilling tube 3.

[0041] The flared cone pipe 6 is connected to the drilling outer pipe 3 and is inclined, changing the direction of soil discharge. This causes the soil to be discharged in an inclined direction away from the outlet of the drilling outer pipe 3, fundamentally solving the problem of soil accumulation at the discharge outlet and reducing the obstruction caused by accumulated soil to subsequent soil discharge from the drilling outer pipe 3. The gradually widening diameter design of the flared cone pipe 6 reduces the flow velocity of the soil during discharge, preventing soil splashing due to high-speed discharge. It also increases the area of ​​the discharge outlet, improving the discharge volume per unit time, matching the discharge efficiency of the screw conveyor 5. Furthermore, the flared cone pipe 6 is connected to the drilling outer pipe 3 via a flange, facilitating disassembly and maintenance. Its reinforcing ribs on the outer wall enhance the overall structural strength, ensuring that it will not deform due to soil impact during long-term soil discharge, extending the service life of the device. The smooth transition between the inner wall of the flared cone pipe 6 and the drilling outer pipe 3 reduces the frictional resistance of the soil on the discharge path, making the soil discharge process smoother and further improving the overall working efficiency of the drilling device.

[0042] In some examples, the frame 1 is equipped with two sets of conveyor rollers, located on either side below the outer tube slide 2 and the inner drilling slide 4, respectively. A conveyor belt 7 is fitted onto the two sets of conveyor rollers, forming a circulating conveying structure. One set of conveyor rollers is connected to a third drive motor, which drives the conveyor rollers to rotate, thereby driving the conveyor belt 7 in a cyclical motion. The conveying surface of the conveyor belt 7 corresponds to the outlet end of the flared cone pipe 6, and its conveying direction is away from the outer tube slide 2 and the inner drilling slide 4. Baffles are provided on both sides of the conveyor belt 7, extending along the conveying direction of the conveyor belt 7 and higher than its conveying surface. During operation, after the flared cone pipe 6 discharges soil in an inclined direction, the soil falls onto the conveying surface of the conveyor belt 7. The third drive motor starts, driving the conveyor belt 7 in a cyclical motion. The soil on the conveyor belt, constrained by the baffles, moves away from the main body of the drilling device along with the conveyor belt 7, and is eventually transported to the designated soil discharge area.

[0043] The conveyor belt 7 is positioned below the outlet of the flared cone pipe 6, directly receiving the soil discharged from it and preventing soil accumulation below the discharge outlet, thus further resolving the soil accumulation problem. The cyclic conveying function of the conveyor belt 7 continuously transports soil to a location away from the main body of the device, reducing the need for manual cleaning of accumulated soil and lowering labor intensity. Side baffles prevent soil from falling off the edges of the conveyor belt 7 during transport, ensuring the stability and integrity of the soil transport. Simultaneously, the conveyor belt 7 is located below the outer pipe slide 2 and the inner drilling slide 4, making efficient use of the space beneath the device. It does not interfere with the sliding of the outer pipe slide 2 and the inner drilling slide 4, nor with the operation of the drilling outer pipe 3 and the spiral conveying rod 5, resulting in a more compact overall structure. Used in conjunction with the flared cone pipe 6, it forms a complete path from soil excavation to discharge, improving soil removal efficiency and ensuring the drilling device can continuously and stably construct escape routes.

[0044] In some examples, the auxiliary frame 8 is a frame structure, with its bottom fixedly connected to the slider on the side of the outer tube slide 2 opposite to the feed direction via a connector, so as to achieve synchronous sliding along the slide rail of the frame 1 with the outer tube slide 2. The auxiliary frame 8 is equipped with a swing cylinder, the piston rod of which is hinged to the middle of the scraper rod 9. One end of the scraper rod 9 is rotatably connected to the auxiliary frame 8 via a pin, while the other end is a free end with a wear-resistant scraper blade. A positioning pin is provided at the connection between the scraper rod 9 and the auxiliary frame 8 to fix the position of the scraper rod 9 in the non-working state.

[0045] During operation, when soil adheres to the inner wall of the flared conical tube 6 and needs to be cleaned, the positioning pin is pulled out. The piston rod of the swing cylinder extends and retracts, causing the scraper rod 9 to swing around the pin shaft, so that the wear-resistant scraper blade at the free end of the scraper rod 9 abuts against the inner wall of the flared conical tube 6. As the flared conical tube 6 rotates with the drilling outer tube 3, the wear-resistant scraper blade moves relative to the inner wall of the flared conical tube 6, scraping off the adhered soil. The scraped soil is discharged along with the subsequently discharged soil through the flared conical tube 6 to the conveyor belt 7. When cleaning is no longer required, the swing cylinder drives the scraper rod 9 to reset and inserts the positioning pin for fixation.

[0046] The auxiliary frame 8 slides synchronously with the outer tube slide 2, ensuring the relative position stability of the scraper rod 9 and the flared cone tube 6, and ensuring that the scraper rod 9 can accurately act on the inner wall of the flared cone tube 6. The scraper rod 9 achieves contact and separation with the inner wall of the flared cone tube 6 through swinging, which plays a role when cleaning is needed and avoids affecting soil discharge when not cleaning, thus improving the flexibility of use. The wear-resistant scraper blade enhances the scraping effect and reduces wear on the inner wall of the flared cone tube 6, extending the service life of both. The detachable connection method facilitates the replacement and maintenance of the scraper rod 9, reducing the later maintenance cost. The scraper rod 9 promptly scrapes off the soil attached to the inner wall of the flared cone tube 6, preventing soil accumulation from reducing the inner diameter of the flared cone tube 6 and affecting the soil discharge efficiency. In conjunction with the flared cone tube 6 and the conveyor belt 7, it further ensures the smoothness of the soil discharge path and maintains the continuous and stable operation of the drilling device.

[0047] In some examples, the scraper 9 can be further replaced with a guide component 10. The auxiliary frame 8 has two sets of symmetrically distributed mounting holes, each set including multiple screw holes arranged circumferentially. The scraper 9 and the guide component 10 are selectively mounted to the mounting hole sets using bolts, allowing for interchangeable installation on the auxiliary frame 8. The top retaining plate 1001 of the guide component 10 is an arc-shaped plate, its curvature matching the outer circumferential curvature of the outlet end of the flared conical tube 6. The edge of the top retaining plate 1001 extends towards the flared conical tube 6 to near its outer wall. The bottom guide plate 1002 is a flat plate connected to the lower end of the top retaining plate 1001. The inlet width of the guide passage 1003 formed between them is consistent with the inner diameter of the outlet end of the flared conical tube 6, and the outlet width matches the width of the conveyor belt 7. The inner wall of the guide passage 1003 is lined with a wear-resistant liner.

[0048] The back of the soil guide component 10 is equipped with reinforcing ribs, and the reinforcing ribs have connecting holes that are compatible with the mounting hole group. Bolts pass through the connecting holes and engage with the screw holes in the mounting hole group to fix the soil guide component 10 to the auxiliary frame 8. During operation, the hard, lumpy soil discharged from the flared cone pipe 6 enters the soil guide passage 1003. The top retaining plate 1001 prevents the lumpy soil from splashing due to inertia, and the lumpy soil slides along the bottom soil guide plate 1002, falling through the outlet of the soil guide passage 1003 onto the conveyor belt 7. When it is necessary to replace it with the scraper rod 9, the bolts are removed to remove the soil guide component 10, and the scraper rod 9 is then installed into the mounting hole group using bolts.

[0049] The interchangeable arrangement of the soil guide component 10 and the scraper bar 9 allows the device to select suitable components according to soil properties. For hard, lumpy soil, the soil guide component 10 effectively solves the problem of soil splashing. The arc-shaped structure and extended design of the top retaining plate 1001 create a highly enclosed guiding space, preventing lumpy soil from splashing from the top or sides, ensuring the safety of surrounding components and a clean working environment. The wear-resistant lining of the bottom soil guide plate 1002 reduces wear caused by impact from lumpy soil, extending the service life of the soil guide component 10. The size-adaptive design of the soil guide passage 1003 ensures that lumpy soil passes smoothly and falls accurately onto the conveyor belt 7, improving the continuity of soil discharge in conjunction with the conveyor belt 7. The detachable connection facilitates the replacement and maintenance of the soil guide component 10, enhancing the adaptability and practicality of the device.

[0050] In some examples, the outer tube carriage 2 has two opposing mounting plates on the side opposite to the feed direction. The two ends of the swing shaft pass through the shaft holes on the two mounting plates respectively, realizing the rotational connection between the swing shaft and the outer tube carriage 2. The bottom of the auxiliary frame 8 is fixedly connected to the middle of the swing shaft. The auxiliary frame 8 is equipped with a drive cylinder. The cylinder body of the drive cylinder is hinged to the outer tube carriage 2, and the piston rod is hinged to the auxiliary frame 8. The scraper plate 11 is a long strip structure, the length of which is adapted to the width of the conveyor belt 7. One end of the scraper plate 11 is fixedly connected to the side of the auxiliary frame 8 away from the flared tapered tube 6, and the other end faces the conveying surface of the conveyor belt 7. The end of the scraper plate 11 is equipped with an elastic scraper.

[0051] When soil adhering to the conveyor belt 7 needs to be cleaned, the piston rod of the drive cylinder extends and retracts, causing the auxiliary frame 8 to rotate around the swing axis. The auxiliary frame 8 drives the scraper plate 11 to swing synchronously, causing the elastic scraper to slide against the conveyor surface of the conveyor belt 7. As the conveyor belt 7 circulates, the elastic scraper scrapes off the soil adhering to the conveyor surface, and the scraped soil falls into the collection area below the conveyor belt 7. When cleaning is no longer needed, the drive cylinder drives the auxiliary frame 8 to swing in the opposite direction, causing the scraper plate 11 to separate from the conveyor belt 7.

[0052] The auxiliary frame 8 swings via a swing shaft, which, in conjunction with the drive cylinder, allows for flexible control of the contact and separation between the scraper blade 11 and the conveyor belt 7. This ensures efficient operation when cleaning is needed, and prevents unnecessary wear on the conveyor belt 7 when cleaning is not required, thus extending the conveyor belt 7's service life. The elastic scraper blades of the scraper blade 11 closely adhere to the conveying surface of the conveyor belt 7, ensuring thorough removal of adhering soil. This is particularly suitable for highly adhesive soils, preventing soil accumulation on the conveyor belt and thus improving conveying efficiency. The scraper blade 11 is mounted on the auxiliary frame 8 and slides synchronously with the auxiliary frame 8 and the outer tube slide 2, ensuring that the scraper blade 11 consistently cleans the effective area of ​​the conveyor belt 7 during drilling operations, resulting in stable cleaning performance. Together with the conveyor belt 7, this forms a closed loop for soil conveying and cleaning, reducing the increased load on the conveyor belt 7 caused by soil adhesion, lowering energy consumption, and further enhancing the reliability and sustainability of the entire soil removal system in conjunction with components such as the soil guide 10.

[0053] In some examples, the scraper rod 9 or the guide component 10 is bolted or snapped to the auxiliary frame 8.

[0054] When the scraper rod 9 and the auxiliary frame 8 are bolted together, the scraper rod 9 has a through hole in the middle, and the auxiliary frame 8 has a corresponding screw hole. The bolt passes through the through hole and is threaded into the screw hole to fix the scraper rod 9 to the auxiliary frame 8. When the scraper rod 9 is snapped together, the scraper rod 9 has a U-shaped slot in the middle, and the auxiliary frame 8 has a locking block that matches the slot. After the slot and the locking block are engaged, they are fixed by an elastic pin that passes through both.

[0055] In some examples, the bottom of the frame 1 is provided with a track along the conveying direction of the conveyor belt 7, and limit blocks are provided at both ends of the track. The bottom of the dump truck 12 is provided with rollers adapted to the track, and the movement is achieved by the cooperation of the rollers and the track. The dump truck 12 is located at the bottom of the frame 1, and the dump truck 12 is located below the output end of the conveyor belt 7. The top of the dump truck 12 is an open structure, and the interior is provided with a removable liner, the edge of which fits against the inner wall of the dump truck 12. A traction ring is provided on one side of the dump truck 12, and a traction motor is provided on the frame 1. The output shaft of the traction motor is connected to the traction ring through a steel wire rope.

[0056] During operation, soil falling from the output end of conveyor belt 7 directly enters the dump truck 12, where a liner catches the soil to reduce wear on the truck body. When the soil inside the dump truck 12 reaches a preset amount, the traction motor starts, pulling the dump truck 12 along the track via a steel cable until it reaches the unloading area outside the frame 1. After unloading, the traction motor reverses, pulling the dump truck 12 back along the track to below the output end of conveyor belt 7 to continue catching soil.

[0057] The dump truck 12 is positioned below the output end of the conveyor belt 7, directly receiving the soil transported by the conveyor belt 7. This enables seamless soil handling from excavation to final transportation, preventing soil accumulation at the bottom of the frame 1 and reducing manual transfer steps. The cooperation between the track and rollers ensures the stability and directionality of the dump truck 12's movement, preventing it from deviating from the preset path during movement and ensuring it accurately reaches the unloading area and returns to its original position.

[0058] In some examples, the frame 1 has two sets of tracks 13 at its bottom, located on both sides of the frame 1. Each set of tracks 13 includes a drive wheel, a driven wheel, a tension wheel, and a track chain. The drive wheel is connected to a drive motor at the bottom of the frame 1 via a drive shaft. The driven wheel and the tension wheel are mounted at both ends of the bottom of the frame 1 via axles. The track chain is fitted over the drive wheel, driven wheel, and tension wheel, forming a closed loop structure. The tension wheel is connected to the frame 1 via an adjusting cylinder. The position of the tension wheel can be changed by adjusting the extension and retraction of the adjusting cylinder, thereby adjusting the tension of the track chain.

[0059] In some examples, support legs 14 are provided at the four corners of the bottom of the frame 1. Each support leg 14 includes a fixed cylinder and a telescopic column. The fixed cylinder is vertically fixed to the bottom of the frame 1, and the telescopic column is slidably inserted into the fixed cylinder. A lifting cylinder is provided on the side wall of the fixed cylinder. The cylinder body of the lifting cylinder is fixedly connected to the outer wall of the fixed cylinder, and the end of the piston rod is fixedly connected to the side wall of the telescopic column. A support plate is provided at the bottom of the telescopic column, and the lower surface of the support plate is provided with anti-slip teeth. The side wall of the fixed cylinder is also provided with a guide groove, and the outer wall of the telescopic column is provided with a guide block adapted to the guide groove, which is slidably disposed in the guide groove.

[0060] When the device needs to perform drilling operations, the piston rod of the lifting cylinder extends, pushing the telescopic column to slide downwards along the fixed cylinder. The guide block moves synchronously along the guide groove until the support plate contacts the ground and lifts the frame 1, causing the walking track 13 to leave the ground. The anti-slip teeth embed into the ground to enhance stability. After the operation is completed, the piston rod of the lifting cylinder retracts, causing the telescopic column to slide upwards, the support plate leaves the ground, the walking track 13 re-contacts the ground, and the support leg 14 returns to its initial position.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A drilling apparatus for constructing an escape route, characterized in that include: Rack (1); The outer tube slide (2) is horizontally slidably mounted on the frame (1). The outer tube slide (2) is rotatably mounted on the outer tube slide (2). The outer tube slide (2) is configured such that, after sliding, it drives the drilling outer tube (3) to rotate and drill into the soil layer, and forms a rescue passage inside the drilling outer tube (3). An internal drilling slide (4) is horizontally slidably mounted on the frame (1) and located on one side of the outer tube slide (2). A spiral conveying rod (5) is rotatably mounted on the internal drilling slide (4). The rotation direction of the spiral conveying rod (5) is opposite to the rotation direction of the drilling outer tube (3). A drill bit is provided at one end of the spiral conveying rod (5). The spiral conveying rod (5) is located inside the outer tube slide (2). The internal drilling slide (4) is configured such that after sliding, the spiral conveying rod (5) is rotated and drilled into the soil layer by the drill bit, and the excavated soil is discharged from the inside of the drilling outer tube (3) by the rotation of the spiral conveying rod (5).

2. A drilling apparatus for constructing an escape route according to claim 1, characterized in that The drilling outer tube (3) is provided with a flared cone tube (6) at one end away from the feed direction. The flared cone tube (6) gradually expands in diameter from the connection point with the drilling outer tube (3). The flared cone tube (6) is connected to the inside of the drilling outer tube (3) and is used to discharge soil in the inclined direction.

3. A drilling apparatus for constructing an escape route according to claim 2, characterised in that, Also includes: The conveyor belt (7) is arranged on the frame (1) in a circulating manner, located below the outer tube slide (2) and the inner drill slide (4), for conveying and draining the soil discharged from the flared cone pipe (6).

4. A drilling apparatus for constructing an escape route according to claim 3, characterized in that Also includes: An auxiliary frame (8) is provided on the side of the outer tube slide (2) away from the feeding direction and slides synchronously with the outer tube slide (2). A scraper rod (9) is detachably provided on the auxiliary frame (8). The scraper rod (9) is configured such that after being driven to swing by the auxiliary frame (8), one end abuts against the inner wall of the flared cone tube (6) and scrapes off the soil attached to the inner wall of the flared cone tube (6) as the flared cone tube (6) rotates.

5. A drilling apparatus for constructing an escape route according to claim 4, characterised in that, Also includes: A soil guide (10) is detachably mounted on the auxiliary frame (8). The soil guide (10) has a top soil retaining plate (1001) and a bottom soil guide plate (1002). A soil guide passage (1003) is formed between the top soil retaining plate (1001) and the bottom soil guide plate (1002). The inlet of the soil guide passage (1003) faces the outlet end of the flared cone pipe (6), and the outlet faces the conveyor belt (7). It is used to guide the soil discharged from the flared cone pipe (6) to the conveyor belt (7).

6. A drilling apparatus for constructing an escape route according to claim 5, wherein, The auxiliary frame (8) is swayed on the outer tube slide (2) via a swing shaft. The auxiliary frame (8) is also provided with a scraper plate (11). The auxiliary frame (8) is configured such that after swaying, the scraper plate (11) slides against the conveyor belt (7) to scrape off the soil attached to the conveyor belt (7).

7. A drilling apparatus for constructing an escape route according to claim 5, wherein, The scraper rod (9) or the soil guide (10) is bolted or snapped to the auxiliary frame (8).

8. A drilling apparatus for constructing an escape route according to claim 3, characterized in that Also includes: A soil hauler (12) is movably mounted at the bottom of the frame (1) for transporting soil falling from the conveyor belt (7).

9. The drilling device for constructing an escape tunnel according to claim 1, characterized in that, The bottom of the frame (1) is also provided with a walking track (13).

10. The drilling device for constructing an escape tunnel according to claim 1, characterized in that, The frame (1) is also equipped with lifting support legs (14).

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