An underwater marine geological mineral drilling device

Abstract

The present application relates to mineral mobile mining technical field, specifically a kind of marine geology underwater mineral drilling equipment, including frame, and the crawler track type mobile wheel of installation in the both sides of frame, vertically installed on the frame support frame, support frame is equipped with lifting platform, waterproof motor is installed in the middle part of lifting platform, the output end of waterproof motor is connected with hollow drill rod by elastic support member axial sliding, the lower end of hollow drill rod is connected with drill bit, the side of drill bit is equipped with with hollow drill rod inside communication's guniting hole, folding water storage structure is equipped with with water inlet adjusting structure communication between lifting platform and the top of frame.This application realizes equipment flexible transfer by crawler track type mobile wheel, can be moved in underwater and carry out mobile drilling, and cooperate folding water storage structure water supply produces water body impact, no additional power water supply produces water body impact, greatly reduce energy consumption, improve underwater multi-point continuous mineral drilling efficiency, realize significant energy-saving effect.

Description

Technical Field

[0001] This invention relates to the field of mobile mining technology, specifically to a marine geological underwater mining drilling device. Background Technology

[0002] Underwater mining is a crucial link in marine resource development and mineral resource utilization. Rock drilling equipment, as core equipment, must simultaneously meet three core requirements: mobility, waterproofing, and stability. Energy efficiency has also become a key performance indicator for underwater drilling equipment. Existing rock drilling equipment mostly uses wheeled mobility mechanisms, which are prone to getting stuck in soft terrain such as tidal flats and silt, resulting in insufficient mobility. To improve drilling efficiency, existing equipment requires external water pumps or high-pressure water tanks, leading to high energy consumption and susceptibility to failure due to pipeline leaks, making it unsuitable for long-term offshore operations. Furthermore, the poor correlation between water supply and drilling progress makes it difficult for jet grouting to adapt to the drilling schedule, easily causing silt and gravel collapse, affecting drilling efficiency. The additional power consumption further reduces the equipment's energy efficiency. Therefore, it is necessary to develop an integrated, mobile, and autonomously water-supplying underwater geological drilling equipment to address the shortcomings of existing technologies. Summary of the Invention

[0003] To address the problems in the existing technology, this invention provides a marine geological underwater mineral drilling equipment that can perform mobile drilling underwater and, in conjunction with water impact, effectively improve drilling efficiency. At the same time, through power reuse design, it achieves significant energy-saving effects.

[0004] The technical solution adopted by this invention to solve its technical problem is a marine geological underwater mineral drilling equipment, including a chassis and tracked mobile wheels installed on both sides of the chassis. A drilling operation port is provided in the middle of the chassis. A vertical support frame is installed on the chassis. A lifting platform is provided inside the support frame. A waterproof motor is installed in the middle of the lifting platform. The output end of the waterproof motor is axially slidably connected to a hollow drill rod through an elastic support member. A drill bit is connected to the lower end of the hollow drill rod. A slurry injection hole communicating with the inside of the hollow drill rod is provided on the side of the drill bit. A water inlet adjustment structure is connected below the lifting platform and set at the upper end of the hollow drill rod. A folded water storage structure communicating with the water inlet adjustment structure is provided between the lifting platform and the top of the chassis. When the lifting platform descends, it compresses the folded water storage structure to supply water into the water inlet adjustment structure.

[0005] Preferably, the elastic support includes a positioning plate connected to the output end of the waterproof motor. The positioning plate has several sets of positioning holes distributed around its circumference. The top end of the hollow drill rod is connected to a water inlet cylinder. Several sets of vertical water inlet grooves are distributed around the side of the water inlet cylinder. The upper end of the water inlet cylinder is fixedly connected to a positioning post that mates with the positioning holes. A support spring is sleeved on the positioning post.

[0006] Preferably, the water inlet adjustment structure includes a water inlet shell, with connecting shells on both sides of the water inlet shell, and a positioning shell formed by a recessed bottom center of the water inlet shell. The water inlet cylinder is in sliding contact with the positioning shell, the output end of the waterproof motor passes through the top of the water inlet shell and is rotatably connected to the water inlet shell, the upper end of the hollow drill rod passes through the positioning shell and is in sliding contact with the positioning shell, and the water inlet cylinder is initially located inside the positioning shell.

[0007] Preferably, the folding water storage structure includes a base plate fixedly connected to the vehicle frame, and a vertically folding water storage pad mounted on the base plate. A support ring is connected to the upper outer side of the folding water storage pad, and a compression plate is connected to the top of the folding water storage pad. A positioning spring is connected between the support ring and the compression plate. In the initial state, the folding water storage pad below the support ring is a folded section, and the folding water storage pad above the support ring is an extended section. A one-way water inlet connector communicating with the inside of the folding water storage pad is installed above the support ring. A vertical water outlet hose is installed on the compression plate, and a one-way water outlet valve is connected to the water outlet hose. A water outlet connector communicating with the water outlet hose is installed above the compression plate. A connecting pipe corresponding to the water outlet connector is provided on the lifting platform, and the connecting pipe is connected to the connecting shell.

[0008] Preferably, the lifting platform includes a movable frame, a vertical screw is rotatably connected inside the support frame, the screw passes through the movable frame and is threadedly connected to the movable frame, and a drive motor connected to the screw is installed on the top of the support frame.

[0009] Preferably, the connecting pipe fitting includes a docking seat installed below the movable frame and corresponding to the water outlet connector, and the docking seat is connected to one side of the connecting shell through a special-shaped pipe.

[0010] Preferably, a pressure relief valve that communicates with the inside of the folded water storage pad is installed on the side of the support ring.

[0011] Preferably, a filter frame is installed on the support ring, and the pressure relief valve and the one-way water inlet connector are both located inside the filter frame.

[0012] Preferably, a filter cylinder is installed inside the water inlet shell, and the water inlet cylinder is located inside the filter cylinder.

[0013] Preferably, both sides of the folded water storage pad are provided with vertical positioning slide rods, which pass through the support ring and the extrusion plate and are slidably connected to the support ring and the extrusion plate respectively, and the positioning spring is sleeved on the positioning slide rod.

[0014] The beneficial effects of this invention are: The marine geological underwater mining drilling equipment described in this invention achieves flexible equipment transportation through tracked mobile wheels, adapting to the mobility needs of complex underwater mining areas near the coast, and ensuring operational stability after locking; the folding water storage structure autonomously unfolds using air buoyancy and draws water under negative pressure, eliminating the need for an additional water replenishment power device, achieving zero energy consumption in the water intake process, and automatically resets after operation by air buoyancy, leaving a foundation for water supply for the next operation, improving the efficiency of continuous drilling at multiple points, while significantly reducing the overall energy consumption of the equipment.

[0015] The marine geological underwater mining drilling equipment described in this invention uses an elastic support component linked with a water inlet adjustment structure. Through feedback from the formation's compressive pressure, the exposed area of ​​the water inlet cylinder and inlet groove is dynamically adjusted, achieving precise adaptation for water supply interruption in silt layers, low supply in sand and gravel layers, and high supply in rock layers. This avoids silt layer collapse while meeting the cooling and cuttings scouring requirements of high-intensity drilling. The folded water storage pad forms a stable back pressure upon compression, which, combined with a positioning spring buffer, ensures uniform water supply pressure and avoids the impact of sudden flow changes on drilling. The pressure relief valve automatically opens for overpressure protection, preventing structural damage and further improving water supply stability. Moreover, the pressure relief protection is a mechanical action with no power consumption. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is an isometric view of the present invention; Figure 2 for Figure 1 Another perspective isometric drawing; Figure 3 This is a diagram showing the state of the invention after it enters the water. Figure 4 This is a partial cross-sectional view of the folded water storage structure of the present invention; Figure 5 for Figure 1 Enlarged view of region A; Figure 6 for Figure 2 Enlarged view of region B; Figure 7 for Figure 3 Enlarged view of region C; Figure 8 This is a schematic cross-sectional view of the water inlet shell of the present invention; Figure 9 for Figure 8 Enlarged view of region D; Figure 10 This is a partial cross-sectional view of the folded water storage structure of the present invention after folding. In the diagram: 1. Chassis; 2. Tracked moving wheels; 3. Drilling operating port; 4. Support frame; 5. Screw; 6. Moving frame; 7. Drive motor; 8. Waterproof motor; 9. Positioning plate; 10. Positioning hole; 11. Water inlet cylinder; 12. Water inlet trough; 13. Positioning column; 14. Support spring; 15. Hollow drill rod; 16. Drill bit; 17. Spray hole; 18. Water inlet shell; 19. Connecting shell; 20. Positioning shell; 21. Filter cylinder; 22. Base plate; 23. Folded water storage pad; 24. Support ring; 25. Extrusion plate; 26. Positioning spring; 27. One-way water inlet connector; 28. Positioning slide rod; 29. ​​Filter frame; 30. Water outlet hose; 31. Water outlet connector; 32. Docking seat; 33. Shaped pipe; 34. Sealing ring; 35. One-way water outlet valve; 36. Elastic sealing gasket. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] As one embodiment of the present invention, such as Figures 1 to 9 As shown, the marine geological underwater mining drilling equipment of the present invention includes a frame 1 and tracked mobile wheels 2 installed on both sides of the frame 1. A drilling operation port 3 is provided in the middle of the frame 1. A vertical support frame 4 is installed on the frame 1. A lifting platform is provided inside the support frame 4. A waterproof motor 8 is installed in the middle of the lifting platform. The output end of the waterproof motor 8 is axially slidably connected to a hollow drill rod 15 through an elastic support member. A drill bit 16 is connected to the lower end of the hollow drill rod 15. A spray hole 17 communicating with the inside of the hollow drill rod 15 is provided on the side of the drill bit 16. A water inlet adjustment structure is connected to the lower part of the lifting platform and set at the upper end of the hollow drill rod 15. A folded water storage structure communicating with the water inlet adjustment structure is provided between the lifting platform and the top of the frame 1. When the lifting platform descends, it compresses the folded water storage structure to supply water into the water inlet adjustment structure. The water supply is completed by using the drilling lifting power, without the need for additional water supply power, thus achieving energy-saving operation.

[0020] When in use, the tracked mobile wheels 2 drive the chassis 1 to move and transport the equipment to the target underwater mining area; adjust the position of the equipment so that the drilling port 3 is aligned with the drilling point, and lock the tracked mobile wheels 2 to ensure the stability of the operation. Start the drive mechanism of the lifting platform to control the lifting platform to descend along the vertical support frame 4; simultaneously start the waterproof motor 8, the output end of the waterproof motor 8 drives the hollow drill rod 15 and drill bit 16 to rotate through the elastic support component; during the descent of the lifting platform, the water storage structure is squeezed and folded, and the water in the folded water storage structure enters the water inlet regulating structure under pressure, and the water supply status is adaptively adjusted according to the working conditions during the drilling process. After drilling to the target depth, turn off the waterproof motor 8 and stop the rotation of the hollow drill rod 15 and drill bit 16; control the lifting platform to move upward along the support frame 4 to reset, and drive the folding water storage structure to extend to the initial state; then unlock the tracked mobile wheels 2, and use the tracked mobile wheels 2 to drive the chassis 1 to transfer the equipment to the next working point or return.

[0021] To ensure the use of the elastic support, as one embodiment of the present invention, such as Figure 8 As shown, the elastic support includes a positioning plate 9 connected to the output end of the waterproof motor 8. The positioning plate 9 has several sets of positioning holes 10 distributed around its circumference. The top end of the hollow drill rod 15 is connected to a water inlet cylinder 11. The side of the water inlet cylinder 11 has several sets of vertical water inlet grooves 12 distributed around its circumference. The upper end of the water inlet cylinder 11 is fixedly connected to a positioning post 13 that mates with the positioning holes 10. A support spring 14 is sleeved on the positioning post 13.

[0022] When in use, start the drive mechanism of the lifting platform to control the lifting platform to descend along the vertical support frame 4; simultaneously start the waterproof motor 8, the output end of the waterproof motor 8 cooperates with the positioning column 13 through the positioning plate 9 and positioning hole 10 to drive the water inlet cylinder 11, hollow drill rod 15 and drill bit 16 to rotate synchronously; during the descent of the lifting platform, the water storage structure is squeezed and folded, and the water in the folded water storage structure enters the water inlet adjustment structure under pressure. During the drilling process, the water inlet status is dynamically adjusted by the elastic support component according to the formation conditions. The pressure exerted on the drill bit 16 varies among the silt layer, sand and gravel layer, and rock layer. The hollow drill rod 15 causes different axial displacements of the water inlet cylinder 11 and positioning column 13 along the positioning hole 10. The connection between the water inlet groove 12 on the side of the water inlet cylinder 11 and the water inlet regulating structure can be adjusted. This allows the water supply to be shut off during drilling in the silt layer, preventing water spraying from the grouting hole 17 and causing large-scale collapse of the silt layer. During drilling in the sand and gravel layer, the water inlet regulating structure outputs a low water volume, meeting the cooling and cuttings impact removal requirements of the drill bit 16 while avoiding formation collapse caused by excessive impact force. During drilling in the rock layer, a large water volume is used to adapt to the high-intensity drilling requirements, achieving a dynamic match between cooling and cuttings removal. After drilling to the target depth, turn off the waterproof motor 8 and stop the rotation of the positioning plate 9, positioning column 13, water inlet cylinder 11, hollow drill rod 15 and drill bit 16; control the lifting platform to move upward along the support frame 4 to reset, the formation squeezing pressure disappears, the support spring 14 elastically resets, drive the positioning column 13 and water inlet cylinder 11 to return to their axial positions, and the folded water storage structure naturally extends and returns to its initial state after the squeezing is released; then, the tracked mobile wheels 2 can be unlocked, and the chassis 1 can be driven by the tracked mobile wheels 2 to transfer the equipment to the next working point or return.

[0023] To ensure the adjustment effect of the water inlet regulating structure, as one embodiment of the present invention, such as... Figure 8As shown, the water inlet adjustment structure includes a water inlet shell 18, with connecting shells 19 connected to both sides of the water inlet shell 18. The connecting shells 19 can be connected to the lifting platform via connecting plates. The bottom center of the water inlet shell 18 is recessed to form a positioning shell 20. The water inlet cylinder 11 is in sliding contact with the positioning shell 20. The output end of the waterproof motor 8 passes through the top of the water inlet shell 18 and is rotatably connected to the water inlet shell 18. The upper end of the hollow drill rod 15 passes through the positioning shell 20 and is in sliding contact with the positioning shell 20. The water inlet cylinder 11 is initially located inside the positioning shell 20.

[0024] During use, the lifting platform folds the water storage structure as it descends, and the water inside the folded water storage structure enters the water inlet shell 18 under pressure. The water inlet status is dynamically adjusted according to the geological conditions during the drilling process. Specifically: When the drill bit 16 contacts the silt layer, the extrusion pressure is minimal, the water inlet cylinder 11 has no axial displacement along the positioning shell 20, the water inlet groove 12 is completely blocked, and the water supply is shut off by the water inlet adjustment structure to prevent the silt layer from collapsing; when drilling into the sand and gravel layer, the moderate extrusion pressure is transmitted to the water inlet cylinder 11 through the hollow drill rod 15, driving it to slide upward along the positioning shell 20, the support spring 14 is moderately compressed, the water inlet groove 12 is partially exposed and connected to the water inlet shell 18, outputting a low water inlet volume, taking into account both cooling and cuttings removal and formation stability; when drilling into the rock layer, the extrusion pressure is maximum and increases with depth, pushing the positioning column 13 to slide, increasing the upward sliding distance of the water inlet cylinder 11, increasing the compression of the support spring 14, increasing the exposed area and conduction efficiency of the water inlet groove 12, and the water inlet shell 18 and the connecting shell 19 work together to ensure a large flow of water supply, suitable for high-intensity drilling; After drilling is completed, the waterproof motor 8 is turned off and stops rotating. The lifting platform moves upward and resets. The pressure of the formation disappears. The support spring 14 elastically resets and drives the positioning column 13 and the water inlet cylinder 11 back to their original positions. The folded water storage structure resets and the tracked mobile wheel 2 is unlocked to transfer the equipment. It should be noted that, in order to ensure the sliding seal effect between the water inlet cylinder 11 and the positioning shell 20, as one embodiment of the present invention, such as Figures 8 to 9 As shown, a sealing ring 34 is installed on the outer bottom of the water inlet cylinder 11.

[0025] To ensure the stable use of the folded water storage structure, as one embodiment of the present invention, such as Figures 1 to 7 as well as Figure 10As shown, the folding water storage structure includes a base plate 22 fixedly connected to the frame 1, and a vertically folding water storage pad 23 mounted on the base plate 22. A support ring 24 is connected to the upper outer side of the folding water storage pad 23, and a compression plate 25 is connected to the top of the folding water storage pad 23. A positioning spring 26 is connected between the support ring 24 and the compression plate 25. In the initial state, the folding water storage pad 23 below the support ring 24 is in a folded state, and the folding water storage pad 23 above the support ring 24 is in an extended state. The extended section of the state; a one-way water inlet connector 27 connected to the inside of the folded water storage pad 23 is installed above the support ring 24; a vertical water outlet hose 30 is installed on the extrusion plate 25, and a one-way water outlet valve 35 is connected to the water outlet hose 30. The lower end of the water outlet hose 25 is located inside the folded section of the folded water storage pad 23; a water outlet connector 31 connected to the water outlet hose 30 is installed above the extrusion plate 25, and a connecting pipe corresponding to the water outlet connector 31 is provided on the lifting platform. The connecting pipe is connected to the connecting shell 19.

[0026] In use, the drive system of the tracked mobile wheel 2 is started. After the tracked mobile wheel 2 drives the frame 1 to be transported into the water, the extension section relies on the buoyancy generated by the internal air to float up, and then pulls the folding section to gradually unfold. During the unfolding process of the folding water storage pad 23, a negative pressure is formed inside. Under the action of negative pressure, the external water is sucked into the folding water storage pad 23 through the one-way water inlet connector 27 above the support ring 24 until the preset water storage capacity is reached, and the autonomous water replenishment is completed to ensure the subsequent water supply needs. After that, the equipment position is calibrated so that the drilling operation port 3 in the middle of the frame 1 is aligned with the drilling point, and the tracked mobile wheel 2 is locked to ensure the stability of the operation. Start the drive mechanism of the lifting platform to control the lifting platform to descend along the vertical support frame 4. The lifting platform drives the connecting pipe to move down synchronously until the connecting pipe is precisely connected to the water outlet connector 31 above the extrusion plate 25. Then, start the waterproof motor 8 synchronously. The output end of the waterproof motor 8 passes through the top of the water inlet shell 18 and cooperates with the positioning plate 9, positioning hole 10 and positioning column 13 to drive the water inlet cylinder 11, hollow drill rod 15 and drill bit 16 to rotate synchronously. The lifting platform continues to descend and applies pressure to the extrusion plate 25. The extrusion plate 25 compresses the positioning spring 26 between the support ring 24 and the extrusion plate 25, and simultaneously extrudes the folded water storage pad 23. The air inside the folded water storage pad 23 is compressed, forming a buffer force to prevent the water supply pressure from changing suddenly due to excessive extrusion speed. At the same time, the compressed air generates a stable back pressure, providing a continuous driving force for water discharge. Under pressure, the water in the folded water storage pad 23 flows into the connecting pipe through the water outlet hose 30, the one-way water outlet valve 35, and the water outlet connector 31, and then enters the connecting shell 19 through the connecting pipe. After entering the water inlet shell 18 through the connecting shell 19, the water inlet status is dynamically controlled by the water inlet adjustment structure during the drilling process. After drilling to the target depth, the waterproof motor 8 is turned off, and the rotation of the positioning plate 9, positioning column 13, water inlet cylinder 11, hollow drill rod 15, and drill bit 16 is stopped. The lifting platform is controlled to move upward and reset along the support frame 4, the connecting pipe is disengaged from the water outlet connector 31, the formation pressure disappears, the support spring 14 is elastically reset, and the positioning column 13 and water inlet cylinder 11 are driven to return to their initial positions along the axial direction of the positioning shell 20. At the same time, the positioning spring 26 is elastically reset, driving the extrusion plate 25 upward, and the extension section relies on the buoyancy generated by the internal air to drive the extension section to float upward. It should be noted that during the drilling process, after the lifting platform moves down to the limit, it should still be ensured that the water in the folded water storage pad 23 is not completely drained, so as to ensure that the subsequent folded water storage pad 23 can be driven to extend and reset by the buoyancy generated by the internal air, and thus facilitate the drilling work at the next point. To ensure the stability of the folded water storage pad 23 under high pressure conditions, the folded water storage pad 23 is integrally molded and the lower part adopts a bellows-style vertical fold. The folded water storage pad 23 is a multi-layer composite pressure-resistant structure with an internal polyester fiber woven mesh load-bearing layer. The outer wall of the folded water storage pad 23 is fitted with a stainless steel support ring, and the top extension section of the folded water storage pad 23 accounts for 10%-15% of the total volume of the folded water storage pad 23, forming a constant volume air chamber for gas-water separation. When the folded water storage pad 23 is under pressure, it undergoes compression movement in the vertical direction, and the lateral expansion amount is ≤5mm. The multi-layer composite pressure-resistant structure can form a water pressure of 0.3-0.6MPa inside the multi-layer composite pressure-resistant structure. It should be noted that, as another embodiment of the present invention, the folded water storage pad 23 in the extended state above the support ring 24 can be replaced with a rigid structure, in which case there is no need to install the positioning spring 26.

[0027] To ensure the ease of movement of the lifting platform, as one embodiment of the present invention, such as Figure 1 , Figure 3 , Figure 7 As shown, the lifting platform includes a movable frame 6, a vertical screw 5 is rotatably connected inside the support frame 4, the screw 5 passes through the movable frame 6 and is threadedly connected to the movable frame 6, and a drive motor 7 connected to the screw 5 is installed on the top of the support frame 4.

[0028] When in use, start the drive motor 7 to drive the screw 5 to rotate, control the moving frame 6 to move down along the support frame 4, and the moving frame 6 drives the connecting pipe to move down synchronously until the connecting pipe is precisely connected to the water outlet connector 31 above the extrusion plate 25; the drive motor 7 drives the moving frame 6 to continue to move down and apply pressure to the extrusion plate 25, the extrusion plate 25 compresses the positioning spring 26, and simultaneously extrudes the folded water storage pad 23. After drilling is completed, the drive motor 7 is started to reverse, which drives the screw 5 to rotate in the opposite direction. The moving frame 6 is controlled to move upward and reset along the support frame 4 through the threaded transmission, and the connecting pipe is disengaged from the water outlet connector 31. The formation pressure disappears, the support spring 14 is elastically reset, and the driving positioning column 13 and water inlet cylinder 11 are driven to return to their initial positions along the axial direction of the positioning shell 20. At the same time, the positioning spring 26 is elastically reset, which drives the extrusion plate 25 to move upward. The folded water storage pad 23, which is in an extended state above the support ring 24, relies on the buoyancy generated by the internal air to drive the upper part of the folded water storage pad 23 to float up, and the folded water storage structure extends as a whole.

[0029] To ensure the connectivity of the connecting pipes, as one embodiment of the present invention, such as... Figure 2 , Figure 6 As shown, the connecting pipe includes a docking seat 32 installed below the movable frame 6 and corresponding to the water outlet connector 31. The docking seat 32 is connected to one side of the connecting shell 19 through a special-shaped pipe 33.

[0030] In use, the drive motor 7 drives the moving frame 6 to move downwards along the support frame 4, and the moving frame 6 drives the docking seat 32 to move downwards synchronously until the docking seat 32 is precisely docked with the water outlet connector 31 above the extrusion plate 25; the drive motor 7 drives the moving frame 6 to continue moving downwards and applies pressure to the extrusion plate 25 through the docking seat 32, the extrusion plate 25 compresses the positioning spring 26 between the support ring 24 and the extrusion plate 25, and simultaneously extrudes the folded water storage pad 23; the threaded transmission between the screw 5 and the moving frame 6 ensures that the moving frame 6 rises and falls smoothly and accurately, the fit and seal between the docking seat 32 and the water outlet connector 31 and the directional conduction of the special-shaped pipe 33 ensure that there is no leakage in the water supply path, and ensure the stability of equipment operation, the continuity of torque transmission and the stability of water supply pressure; when the moving frame 6 moves upwards along the support frame 4 to reset, the moving frame 6 drives the docking seat 32 to disengage from the water outlet connector 31; It should be noted that, in order to improve the sealing effect after the docking seat and the water outlet connector 31 are connected, an elastic sealing gasket 36 is also provided on the top edge of the docking seat 32.

[0031] To ensure the safety of using the folded water storage pad 23, as an embodiment of the present invention, a pressure relief valve communicating with the inside of the folded water storage pad 23 is installed on the side of the support ring 24.

[0032] When in use, the pressure relief valve automatically opens to release pressure when the pressure inside the folded water storage pad 23 exceeds the preset threshold. The valve closes after the pressure inside the folded water storage pad 23 drops to a safe value, thus preventing overpressure damage to components such as the folded water storage pad 23 and the irregular tube 33, while ensuring stable water supply pressure.

[0033] In order to reduce the amount of impurities entering the folded water storage pad 23, as an embodiment of the present invention, a filter frame 29 is installed on the support ring 24, and the pressure relief valve and the one-way water inlet connector 27 are both located inside the filter frame 29.

[0034] When in use, after the equipment is filled with water, the folded water storage pad 23 gradually unfolds. During the unfolding process, the folded water storage pad 23 absorbs water. After the external water passes through the filter holes of the filter frame 29 to filter impurities, it is drawn into the folded water storage pad 23 through the one-way water inlet connector 27 inside the filter frame 29 until the preset water storage capacity is reached, thus completing the self-replenishment of water and ensuring subsequent water supply needs. During this process, the pressure relief valve inside the filter frame 29 remains closed, and the filter frame 29 continuously blocks impurities to prevent the one-way water inlet connector 27 from becoming clogged. As the mobile frame 6 continues to descend, it compresses and folds the water storage pad 23. The air inside the folded water storage pad 23 is compressed. When the pressure exceeds the preset threshold of the pressure relief valve inside the filter frame 29, the pressure relief valve automatically opens to drain the water. After the water is discharged, it will be discharged through the filter holes of the filter frame 29, thereby backflushing the filter holes and cleaning the filter frame 29, thus ensuring the filtration effect of the filter frame 29 in subsequent use.

[0035] To further improve the protection effect on the water inlet cylinder 11, as one embodiment of the present invention, such as Figure 8 As shown, a filter cylinder 21 is installed inside the water inlet shell 18, and the water inlet cylinder 11 is located inside the filter cylinder 21.

[0036] During use, the water flowing through the inlet shell 18 and the connecting shell 19 is forced through the filter cylinder 21. The filter medium continuously intercepts solid impurities such as mud, sand and rock fragments through screening, providing clean water for subsequent flow channels and functional components.

[0037] To ensure the ease of folding and repositioning of the foldable water storage pad 23, as one embodiment of the present invention, such as... Figure 3 , Figure 7 As shown, both sides of the folded water storage pad 23 are provided with vertical positioning slide rods 28. The positioning slide rods 28 pass through the support ring 24 and the extrusion plate 25 and are slidably connected to the support ring 24 and the extrusion plate 25 respectively. The positioning spring 26 is sleeved on the positioning slide rods 28.

[0038] In use, the moving frame 6 moves downward and applies pressure to the extrusion plate 25 through the docking seat 32. The extrusion plate 25 slides vertically downward along the positioning slide rod 28. The positioning slide rod 28 restricts the radial offset between the support ring 24 and the extrusion plate 25, ensuring that the folded water storage pad 23 is compressed evenly in the vertical direction, avoiding structural damage caused by uneven load. When the moving frame 6 moves upward and resets, the positioning spring 26 extends elastically, driving the extrusion plate 25 and the support ring 24 to return to their original positions along the positioning slide rod 28, and the folded water storage pad 23 extends.

[0039] In use, the drive system of the tracked mobile wheels 2 is activated, driving the chassis 1 to transport the equipment to the target mining area for underwater mineral drilling operations at a depth of 3-10 meters near the shore. The hydrostatic pressure at this depth is approximately 0.1 MPa. After the equipment enters the water, the folded water storage pad 23, which is in an extended state above the support ring 24, generates buoyancy through its internal air, causing the upper part of the folded water storage pad 23 to float upwards. This, in turn, pulls the folded water storage pad 23 below the support ring 24 to gradually unfold. During the unfolding process, a negative pressure is formed inside the folded water storage pad 23. After the external water body passes through the filter holes of the filter frame 29 to intercept impurities, it is drawn into the folded water storage pad 23 through the one-way water inlet connector 27 inside the filter frame 29 until the preset water storage capacity is reached, completing the autonomous water replenishment. During this process, the pressure relief valve inside the filter frame 29 remains closed to ensure stable negative pressure. Afterwards, the equipment position is calibrated so that the drilling operation port 3 in the middle of the chassis 1 is precisely aligned with the drilling point, and the tracked mobile wheels 2 are locked to ensure that the equipment does not shift during operation. The drive motor 7 continuously drives the moving frame 6 downwards, applying pressure to the extrusion plate 25 through the docking seat 32; the extrusion plate 25 slides vertically downwards along the positioning slide rod 28, compressing the positioning spring 26 between the support ring 24 and the extrusion plate 25, and simultaneously extruding the folded water storage pad 23; the air inside the folded water storage pad 23 is compressed to form a buffer force, avoiding sudden changes in water supply pressure, and at the same time generating stable back pressure; when the internal pressure exceeds the preset threshold of the pressure relief valve, the pressure relief valve automatically opens to release pressure. The preset threshold of the pressure relief valve is 0.65~0.7MPa, and it closes after the pressure drops to a safe value; the folded water storage pad 23 has a diameter of The rigid constraint restricts lateral expansion, completely converting the squeezing force into internal water pressure, forming an outlet pressure of 0.3-0.6 MPa. This pressure is much greater than the 0.1 MPa environmental hydrostatic pressure at a depth of 3-10 meters underwater, creating an effective water pressure difference to ensure that the water can overcome the underwater hydrostatic pressure. Under pressure, the water in the folded water storage pad 23 flows into the docking seat 32 through the outlet hose 30, one-way outlet valve 35, and outlet connector 31, and then into the connecting shell 19 through the special-shaped pipe 33. After entering the water inlet shell 18 through the connecting shell 19, it flows through the filter cylinder 21 in the water inlet shell 18 to intercept residual impurities. When drill bit 16 contacts the silt layer, the pressure exerted by the silt layer on drill bit 16 is minimal. The water inlet groove 12 on the side of the water inlet cylinder 11 is completely blocked by the positioning shell 20, and the water inlet adjustment structure shuts off the water supply to prevent water from spraying from the grouting hole 17 and causing the silt layer to collapse. As the moving frame 6 descends, the pressure inside the folded water storage pad 23 gradually increases, and the pressure relief valve automatically opens to prevent excessive internal pressure from damaging the structure of the folded water storage pad 23. When drilling into the sand and gravel layer, the sand and gravel layer exerts a moderate pressure on drill bit 16, which is transmitted to the hollow drill rod 15. The water inlet cylinder 11 is driven to slide upward along the positioning shell 20, and the support spring 14 is moderately compressed; the water inlet groove 12 on the side of the water inlet cylinder 11 is partially exposed outside the positioning shell 20 and is connected to the water inlet shell 18, and the water inlet adjustment structure outputs a low water inlet volume; at the same time, the compressed air in the folded water storage pad 23 provides a stable medium pressure, and the water is stably input through a complete flow path, which meets the cooling needs of the drill bit 16 and the cuttings flushing needs while avoiding formation collapse; the filter cylinder 21 continuously intercepts water impurities to prevent the water inlet groove 12 and the spray hole 17 from being blocked.

[0040] When drilling into the rock formation, the rock formation exerts the maximum squeezing force on the drill bit 16, which increases with the drilling depth. The squeezing force drives the water inlet cylinder 11 to slide upward along the positioning shell 20, and the distance of the upward sliding distance increases synchronously. The compression of the support spring 14 is significantly increased, and the exposed area and conductivity of the water inlet groove 12 increase synchronously. The water inlet adjustment structure also improves the water inlet efficiency synchronously. The large water inlet volume is suitable for high-intensity drilling. After drilling to the target depth, the waterproof motor 8 is turned off, and the drive motor 7 is started in reverse to drive the moving frame 6 to move upward along the support frame 4 to reset. The moving frame 6 drives the docking seat 32 to disengage from the water outlet connector 31. The formation extrusion pressure disappears, the support spring 14 elastically resets, and the driving positioning column 13 and water inlet cylinder 11 return to their initial positions along the axial direction of the positioning shell 20. The positioning spring 26 elastically resets, driving the extrusion plate 25 to return upward along the positioning slide rod 28. The folded water storage pad 23 returns to its initial state under the action of internal air buoyancy. Then, depending on the actual working conditions, unlock the tracked mobile wheels 2, and use the tracked mobile wheels 2 to drive the chassis 1 to transfer the equipment to the next location or storage area to complete this operation.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine geological underwater mineral drilling equipment, characterized in that, The system includes a frame (1) and tracked mobile wheels (2) installed on both sides of the frame (1). A drilling operation port (3) is provided in the middle of the frame (1). A vertical support frame (4) is installed on the frame (1). A lifting platform is provided inside the support frame (4). A waterproof motor (8) is installed in the middle of the lifting platform. A hollow drill rod (15) is axially slidably connected to the output end of the waterproof motor (8) through an elastic support member. A drill bit (16) is connected to the lower end of the hollow drill rod (15). A spray hole (17) communicating with the inside of the hollow drill rod (15) is provided on the side of the drill bit (16). A water inlet adjustment structure is connected to the upper end of the hollow drill rod (15) below the lifting platform. A folded water storage structure communicating with the water inlet adjustment structure is provided between the lifting platform and the top of the frame (1). When the lifting platform descends, it compresses the folded water storage structure to supply water into the water inlet adjustment structure.

2. The marine geological underwater mineral drilling equipment according to claim 1, characterized in that, The elastic support includes a positioning plate (9) connected to the output end of the waterproof motor (8). The positioning plate (9) has several sets of positioning holes (10) distributed around its circumference. The top end of the hollow drill rod (15) is connected to a water inlet cylinder (11). The side of the water inlet cylinder (11) has several sets of vertical water inlet grooves (12) distributed around its circumference. The upper end of the water inlet cylinder (11) is fixedly connected to a positioning post (13) that cooperates with the positioning holes (10). A support spring (14) is sleeved on the positioning post (13).

3. The marine geological underwater mineral drilling equipment according to claim 2, characterized in that, The water inlet adjustment structure includes a water inlet shell (18), with connecting shells (19) connected to both sides of the water inlet shell (18). The bottom center of the water inlet shell (18) is recessed to form a positioning shell (20). The water inlet cylinder (11) slides in contact with the positioning shell (20). The output end of the waterproof motor (8) passes through the top of the water inlet shell (18) and is rotatably connected to the water inlet shell (18). The upper end of the hollow drill rod (15) passes through the positioning shell (20) and slides in contact with the positioning shell (20). The water inlet cylinder (11) is initially located inside the positioning shell (20).

4. The marine geological underwater mineral drilling equipment according to claim 3, characterized in that, The folding water storage structure includes a base plate (22) fixedly connected to the frame (1), and a vertically mounted folding water storage pad (23) on the base plate (22). A support ring (24) is connected to the upper outer side of the folding water storage pad (23), and a compression plate (25) is connected to the top of the folding water storage pad (23). A positioning spring (26) is connected between the support ring (24) and the compression plate (25). In the initial state, the folding water storage pad (23) below the support ring (24) is a folded section, and the section above the support ring (24) is a folded section. The folded water storage pad (23) is an extended section in the extended state; a one-way water inlet connector (27) connected to the inside of the folded water storage pad (23) is installed above the support ring (24); a vertical water outlet hose (30) is installed on the extrusion plate (25), and a one-way water outlet valve (35) is connected to the water outlet hose (30); a water outlet connector (31) connected to the water outlet hose (30) is installed above the extrusion plate (25); a connecting pipe corresponding to the water outlet connector (31) is provided on the lifting platform, and the connecting pipe is connected to the connecting shell (19).

5. The marine geological underwater mineral drilling equipment according to claim 4, characterized in that, The lifting platform includes a movable frame (6), a vertical screw (5) is rotatably connected inside the support frame (4), the screw (5) passes through the movable frame (6) and is threadedly connected to the movable frame (6), and a drive motor (7) connected to the screw (5) is installed on the top of the support frame (4).

6. The marine geological underwater mineral drilling equipment according to claim 5, characterized in that, The connecting pipe includes a docking seat (32) installed below the movable frame (6) and corresponding to the water outlet connector (31). The docking seat (32) is connected to one side of the connecting shell (19) through a shaped pipe (33).

7. The marine geological underwater mineral drilling equipment according to claim 6, characterized in that, The support ring (24) is equipped with a pressure relief valve that communicates with the inside of the folded water storage pad (23).

8. The marine geological underwater mineral drilling equipment according to claim 7, characterized in that, A filter frame (29) is installed on the support ring (24), and the pressure relief valve and the one-way water inlet connector (27) are both located inside the filter frame (29).

9. The marine geological underwater mineral drilling equipment according to claim 8, characterized in that, A filter cylinder (21) is installed inside the water inlet shell (18), and the water inlet cylinder (11) is located inside the filter cylinder (21).

10. The marine geological underwater mineral drilling equipment according to claim 9, characterized in that, The folded water storage pad (23) has vertical positioning slide rods (28) on both sides. The positioning slide rods (28) pass through the support ring (24) and the extrusion plate (25) and are slidably connected to the support ring (24) and the extrusion plate (25) respectively. The positioning spring (26) is sleeved on the positioning slide rod (28).

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