Hydraulic ring geological drilling device

Abstract

The invention relates to the technical field of geological drilling, and discloses a hydraulic ring geological drilling device which comprises a vertical frame, a sliding seat is slidably connected to the front side of the vertical frame in the length direction of the vertical frame, a vertical driving part is arranged in the middle of the vertical frame in the length direction of the vertical frame, and an overload protection part is arranged between the sliding seat and the vertical driving part; an inclined hopper is fixedly installed on the front side of the sliding base, a hollow drill rod and a soil conveying piece are rotationally connected to the middle of the inclined hopper in a penetrating mode, and a cooling assembly is rotationally connected to the upper half portion of the hollow drill rod. Cooling water or cooling oil is input into the liquid inlet channel through the liquid inlet connector, passes through the M-shaped channel and the liquid discharging channel and then is discharged from the liquid discharging connector, and therefore the lining pipe, the outer sleeve and the drill bit are cooled. Therefore, when the hollow drill rod is cooled, cooling water or cooling oil is prevented from entering a drill hole, the cooling effect of the hollow drill rod is guaranteed, and meanwhile it is prevented that soil of different depths is mixed together, and follow-up use and detection are affected.

Description

Technical Field

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

[0002] Hydrogeology, engineering geology, and environmental geology are all related fields. Hydrogeology primarily studies the distribution and formation patterns of groundwater, its physical properties and chemical composition, groundwater resources and their rational utilization, and the adverse effects of groundwater on engineering construction and mining, as well as their prevention and control. Hydrogeological testing involves drilling holes using drilling equipment and sampling the soil at the target depth.

[0003] Chinese patent application date: February 22, 2023, publication number: CN115853508B, discloses a small drilling device for hydrogeological surveys, relating to the field of geological drilling technology. It includes a support assembly for supporting the entire device, comprising a main frame and a receiving assembly for receiving drilled soil samples. The receiving assembly is located directly below the main frame and includes two electrically operated telescopic rods fixedly installed on the top of the main frame. When the rotating ring of this invention rotates, the diagonal tie rod drives the receiving ring plate and the leveling assembly inside the receiving ring plate to rotate. The rotating steel scraper scrapes the ground. As the length of the electrically operated telescopic rods slowly increases, the compression of multiple tension springs gradually increases, causing the pressure between the steel scraper and the ground to gradually increase. The steel scraper levels the area directly below the receiving ring plate, ensuring that the receiving ring plate is in contact with the ground and preventing gaps below the receiving ring plate.

[0004] However, in this technical solution, in order to cool the drill rod, cooling water needs to be injected into the borehole, and the soil and water are transported upward by the auger blades. Since the soil is soaked in the water, soil from different depths is easily mixed together. Moreover, the water soaks the borehole wall, and soil from different depths of the borehole wall can also easily enter the water. When conducting testing and sampling, it is difficult to accurately sample the soil at the target depth, so further improvements can be made. Summary of the Invention

[0005] 1. Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a hydrogeological drilling device that avoids mixing of soils at different depths. It solves the problem that when the drill rod is cooled, soils at different depths are simultaneously immersed in water, easily mixing together and making sampling and testing difficult.

[0006] (II) Technical Solution To achieve the aforementioned goal of avoiding soil mixing at different depths, the present invention provides the following technical solution: a hydrogeological drilling device, comprising a frame, a sliding block slidably connected to the front side of the frame along its length, a vertical drive component arranged in the middle of the frame along its length, and an overload protection component arranged between the sliding block and the vertical drive component; an inclined hopper fixedly installed on the front side of the sliding block, a hollow drill rod and a soil conveying component rotatably connected through the middle of the inclined hopper, the soil conveying component being located inside the hollow drill rod, and the hollow drill rod and the soil conveying component rotating in opposite directions, a rotation drive component being arranged between the top ends of the hollow drill rod and the soil conveying component; a sandwich layer is provided inside the hollow drill rod, and a cooling component is rotatably connected to the upper half of the hollow drill rod, the cooling component communicating with the sandwich layer.

[0007] Preferably, the vertical drive component includes a motor fixedly installed on the top of the stand, the output end of the motor is connected to a threaded rod, the threaded rod is arranged along the length of the stand, a threaded sleeve is threadedly connected to the threaded rod, and the threaded sleeve is connected to the rear side of the slide block through an overload protection component.

[0008] Preferably, the inclined hopper includes a support frame fixedly installed on the front side of the slide block, a hopper body fixedly installed on the front side of the support frame, a discharge port provided on the left side of the hopper body, the bottom of the hopper body is inclined and lower on the left and higher on the right, a positioning ring is fixedly fixed through the center of the bottom of the hopper body, and an arch frame is fixedly installed on the top of the hopper body.

[0009] Preferably, the hollow drill rod includes an inner liner and an outer sleeve. The outer sleeve is fitted over the inner liner, and a sandwich is formed between the outer wall of the inner liner and the inner wall of the outer sleeve. A drill bit is fixedly installed on the bottom outer wall of the outer sleeve, sealing the bottom of the sandwich. The bottom end of the drill bit is fixedly arrayed with breaking teeth. A connecting pipe is fixedly installed at the top of the inner liner and the outer sleeve, sealing the top of the sandwich. An annular flange is fixedly installed on the outer wall of the connecting pipe, and a rotating cylinder is fixedly installed at the top of the connecting pipe. An array of connecting windows is opened through the circumference of the rotating cylinder. The connecting pipe is rotatably connected to a positioning ring, and the rotating cylinder is rotatably connected through the top center of the hopper body. The annular flange and the rotating cylinder are clamped at the bottom and top of the positioning ring.

[0010] Preferably, the soil conveying component includes a rotating shaft disposed inside the hollow drill rod, the rotating shaft being disposed along the axis of the hollow drill rod, a crushing cone being fixedly installed at the bottom end of the rotating shaft, and a spiral blade being fixedly installed on the surface of the inner wall of the hollow drill rod.

[0011] Preferably, the rotating drive component includes a rotating ring fixedly installed on the circumferential surface of the top end of the hollow drill rod, a ring gear fixedly installed on the top edge of the rotating ring, a driven gear fixedly installed on the circumferential surface of the top end of the soil conveying component, a driving gear meshing between the ring gear and the driven gear, and a motor connected to the center of the driving gear.

[0012] Preferably, the cooling assembly includes two right side plates fixedly installed on the outer wall of the right half of the inner liner tube, and two left side plates fixedly installed on the outer wall of the left half of the inner liner tube. A spacer strip is provided in the middle between the left and right side plates, and spacer strips are provided in the middle between the spacer strip and the left and right side plates, and between the spacer strip and the right side plates. A C-shaped piece is fixedly installed on the outer wall of the upper half of the inner liner tube, with both ends of the C-shaped piece fixedly installed on opposite sides of the two right side plates. The left side plates and spacer strips are both fixedly installed at the bottom of the C-shaped piece. A liquid inlet channel is formed between the two right side plates, and a liquid inlet channel is formed between the two left side plates. A drainage channel is formed between the right and left side panels, with an M-shaped channel formed by two spacers. The two ends of the M-shaped channel are connected to the inlet channel and the outlet channel, respectively. A drain port and an inlet port are provided through the upper half of the outer wall of the outer sleeve. An annular cover one and an annular cover two are rotatably connected to the outer side of the outer sleeve. The annular cover two is located above the annular cover one. A drain connector is connected to the surface of the annular cover one, and an inlet connector is connected to the surface of the annular cover two. The drain connector and the annular cover one are connected to the drainage channel through the drain port, and the annular cover two and the inlet connector are connected to the inlet channel through the inlet port.

[0013] Preferably, the overload protection component includes two limiting posts fixedly installed on the rear side of the slide block. A guide rod is fixedly installed at the bottom of each limiting post. A mounting cover is slidably connected to the guide rod. A threaded sleeve is disposed inside the mounting cover. A spring is sleeved on the guide rod. The surface of the guide rod is threaded. A support ring is threadedly connected to the guide rod. The mounting cover and the support ring are respectively clamped on both ends of the spring.

[0014] Preferably, two clamping rings are fixedly installed inside the mounting cover. A threaded sleeve is rotatably connected to the center of the mounting cover and the two clamping rings. Each clamping ring has an array of straight grooves. A slider is arranged in an array between the two clamping rings. The upper and lower ends of the slider are slidably connected to the clamping rings through the straight grooves. An insert is fixedly installed on the side of the slider near the threaded sleeve. Slots are arranged in an array on the circumference of the threaded sleeve. The insert is inserted into the slot. A plug-in / pull-out drive is provided at the bottom of the slider.

[0015] Preferably, the insertion / removal drive component includes a drive disk rotatably connected to the bottom of the mounting cover, the drive disk array having inclined grooves, a sliding column fixedly installed at the bottom of the slider, the sliding column being slidably connected within the inclined grooves; an arc-shaped plate fixedly installed on the front side of the bottom of the drive disk, the arc-shaped plate having a spiral groove on its front side, a sliding ball fixedly installed on the rear side of the slide block, the sliding ball being slidably connected within the spiral grooves; a mounting base fixedly installed on the rear side of the mounting cover, a friction plate fixedly installed on the front side of the bottom end of the mounting base, the friction plate being in contact with the circumferential surface of the drive disk.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides a hydraulic annular geological drilling device, which has the following beneficial effects: 1. This hydrogeological drilling device introduces cooling water or cooling oil into the inlet channel through the inlet connector. After passing through the M-shaped channel and the outlet channel, the cooling water or cooling oil is discharged from the outlet connector, thereby cooling the inner liner, outer sleeve, and drill bit. This prevents cooling water or cooling oil from entering the borehole when cooling the hollow drill rod, ensuring the cooling effect of the hollow drill rod and preventing soil from different depths from mixing together, which would affect subsequent use and testing. 2. In this hydrogeological drilling device, during the drilling process, some soil enters the inner liner tube. The soil is broken up by the crushing cone, and then the spiral blades transport the soil upwards. Finally, the soil enters the hopper body through the connecting window and moves to the left along the bottom wall of the hopper body before being discharged from the discharge port. Thus, during the downward drilling of the hollow drill rod, soil enters the interior of the hollow drill rod. During the upward transport of the soil, soil on the borehole wall falls off, mixing soil from different depths together. The soil inside the hollow drill rod is continuously transported upwards by the soil conveying component, facilitating subsequent sampling and testing of soil at different depths. 3. In this hydrogeological drilling device, when the drill bit encounters hard rock and it becomes difficult to continue drilling downwards, the drill bit stops at the current depth, while the threaded rod continues to rotate, causing the threaded sleeve and mounting cover to slide downwards along the guide rod. The spring is compressed, and the ball bearings press against the inner wall of the spiral groove, causing the arc plate and drive disc to rotate. The drive disc, located on the side wall of the inclined groove, presses against the sliding column, causing the slider to slide along the straight groove, allowing the insert to be pulled out of the slot. This causes the threaded sleeve to rotate with the threaded rod and idle inside the mounting cover, thereby achieving the purpose of overload protection for the drill bit. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a hydrogeological drilling device proposed in this invention; Figure 2 This is a rear-view three-dimensional structural diagram of a hydrogeological drilling device proposed in this invention; Figure 3 This is a three-dimensional structural diagram of a hollow drill rod for a hydrogeological drilling device proposed in this invention. Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the hollow drill rod of a hydrogeological drilling device proposed in this invention; Figure 5 This is a three-dimensional structural diagram of the cooling assembly of a hydrogeological drilling device proposed in this invention, viewed from the right side. Figure 6 This is a three-dimensional structural diagram of the cooling component of a hydrogeological drilling device proposed in this invention, viewed from the left side. Figure 7 This is a bottom view schematic diagram of the cooling assembly of a hydrogeological drilling device proposed in this invention; Figure 8 This is a three-dimensional structural diagram of the inclined hopper and rotating drive component of a hydrogeological drilling device proposed in this invention. Figure 9 This is a three-dimensional structural diagram of an overload protection component for a hydrogeological drilling device proposed in this invention. Figure 10 This is a three-dimensional exploded view of the overload protection component of a hydrogeological drilling device proposed in this invention; Figure 11 This is a schematic diagram of the plug-in drive component in the overload protection component of a hydrogeological drilling device proposed in this invention.

[0018] In the diagram: 100, upright frame; 200, slide block; 300, vertical drive component; 400, tilting hopper; 500, hollow drill rod; 600, soil conveying component; 700, rotation drive component; 800, cooling assembly; 900, overload protection component; 301. Motor 1; 302. Threaded rod; 303. Threaded sleeve; 401. Support frame; 402. Hopper body; 403. Positioning ring; 404. Arch frame; 501. Inner liner; 502. Outer sleeve; 503. Drill bit; 504. Breaker tooth; 505. Connecting pipe; 506. Annular flange; 507. Rotary drum; 508. Connecting window; 601. Rotating shaft; 602. Crushing cone; 603. Spiral blades; 701. Rotary ring; 702. Ring gear; 703. Driven gear; 704. Driving gear; 705. Motor II; 801. Right side panel; 802. Left side panel; 803. Partition strip one; 804. Partition strip two; 805. C-shaped piece; 806. Drain outlet; 807. Inlet; 808. Annular cover one; 809. Drain connector; 810. Annular cover two; 811. Inlet connector; 901. Limiting post; 902. Guide rod; 903. Mounting cover; 904. Spring; 905. Support ring; 906. Clamping ring; 907. Straight groove; 908. Slider; 909. Insert bar; 910. Slot; 911. Sliding column; 912. Drive plate; 913. Inclined groove; 914. Arc plate; 915. Spiral groove; 916. Sliding ball; 917. Mounting base; 918. Friction plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-4 A hydrogeological drilling device includes a frame 100. A slide block 200 is slidably connected to the front side of the frame 100 along its length. A vertical drive member 300 is arranged in the middle of the frame 100 along its length. An overload protection member 900 is provided between the slide block 200 and the vertical drive member 300. An inclined hopper 400 is fixedly installed on the front side of the slide block 200. A hollow drill rod 500 and a soil conveying member 600 are rotatably connected through the middle of the inclined hopper 400. The soil conveying member 600 is located inside the hollow drill rod 500, and the hollow drill rod 500 and the soil conveying member 600 rotate in opposite directions. A connecting window 508 is arrayed on the circumferential surface of the top end of the hollow drill rod 500, and the connecting window 508 communicates with the inclined hopper 400. A rotation drive member 700 is provided between the top ends of the hollow drill rod 500 and the soil conveying member 600. The hollow drill rod 500 has an internal jacket, and a cooling assembly 800 is rotatably connected to the upper half of the hollow drill rod 500, communicating with the jacket. The cooling assembly 800 drives cooling oil or cooling water to circulate inside the jacket, cooling the hollow drill rod 500 and preventing cooling water from entering the borehole, thus avoiding mixing of soil from different depths due to immersion in water.

[0021] Please see Figure 2The vertical drive unit 300 includes a motor 301 fixedly installed on the top of the support frame 100. A threaded rod 302 is connected to the output end of the motor 301. The threaded rod 302 is arranged along the length of the support frame 100, and a threaded sleeve 303 is threadedly connected to the threaded rod 302. The threaded sleeve 303 is connected to the rear side of the slide block 200 via an overload protection component 900. In this embodiment, the threaded sleeve 303 is fixedly installed to the slide block 200 via the overload protection component 900. When the motor 301 drives the threaded rod 302 to rotate, it drives the threaded sleeve 303 and the slide block 200 to move downwards. This, in conjunction with the rotation drive unit 700, drives the hollow drill rod 500 to rotate, causing the hollow drill rod 500 to gradually penetrate deeper into the soil.

[0022] Please see Figure 8 The inclined hopper 400 includes a support frame 401 fixedly installed on the front side of the slide block 200. A hopper body 402 is fixedly installed on the front side of the support frame 401. A discharge port is provided on the left side of the hopper body 402. The bottom of the hopper body 402 is inclined, with the left side lower than the right. A positioning ring 403 is fixedly installed through the center of the bottom of the hopper body 402. An arch frame 404 is fixedly installed on the top of the hopper body 402. The soil inside the hollow drill rod 500 is broken up by the soil conveying component 600 and conveyed upwards. The broken soil passes through the connecting window 508 into the hopper body 402 and moves along the bottom wall of the hopper body 402 towards the discharge port. As the hollow drill rod 500 penetrates deeper into the soil, the broken soil is continuously discharged from the discharge port of the hopper body 402.

[0023] Please see Figures 3-5 The hollow drill pipe 500 includes an inner liner 501 and an outer sleeve 502. The outer sleeve 502 is sleeved on the outside of the inner liner 501. An interlayer is formed between the outer wall of the inner liner 501 and the inner wall of the outer sleeve 502. The interlayer is used to contain cooling water or cooling oil, thereby cooling the inner liner 501 and the outer sleeve 502.

[0024] A drill bit 503 is fixedly installed on the outer wall of the bottom end of the outer sleeve 502. The drill bit 503 seals the bottom end of the interlayer. The bottom end of the drill bit 503 is fixed with an array of breaking teeth 504. The diameter of the drill bit 503 is larger than the outer diameter of the outer sleeve 502, so that the diameter of the drill hole is larger than the diameter of the outer sleeve 502, reducing the friction between the outer sleeve 502 and the hole wall, and reducing the heat generated by the friction of the outer sleeve 502.

[0025] A connecting pipe 505 is fixedly installed at the top of the inner liner tube 501 and the outer sleeve tube 502. The connecting pipe 505 seals the top of the interlayer. An annular flange 506 is fixedly installed on the outer wall of the connecting pipe 505. A rotating cylinder 507 is fixedly installed at the top of the connecting pipe 505. An array of connecting windows 508 is opened through the circumference of the rotating cylinder 507. The connecting pipe 505 is rotatably connected inside the positioning ring 403. The rotating cylinder 507 is rotatably connected through the center of the top of the hopper body 402. The annular flange 506 and the rotating cylinder 507 are clamped at the bottom and top of the positioning ring 403.

[0026] Please see Figure 4 The soil conveying component 600 includes a rotating shaft 601 disposed inside the hollow drill rod 500. The rotating shaft 601 is arranged along the axis of the hollow drill rod 500. A crushing cone 602 is fixedly installed at the bottom end of the rotating shaft 601. A spiral blade 603 is fixedly installed on the surface of the inner wall of the hollow drill rod 500. The rotating shaft 601 is driven to rotate in the opposite direction to the hollow drill rod 500 by the rotating drive component 700, thereby causing the spiral blade 603 to rotate relative to the inner liner tube 501. After the hollow drill rod 500 drills into the soil, some soil will enter the interior of the hollow drill rod 500. The soil is crushed by the crushing cone 602, and then the crushed soil is conveyed upward by the spiral blade 603.

[0027] Please see Figure 8 The rotating drive component 700 includes a rotating ring 701 fixedly installed on the top circumferential surface of the hollow drill rod 500. A ring gear 702 is fixedly installed on the top edge of the rotating ring 701. A driven gear 703 is fixedly installed on the top circumferential surface of the soil conveying component 600. A driving gear 704 meshes between the ring gear 702 and the driven gear 703. A second motor 705 is connected to the center of the driving gear 704. The second motor 705 is fixedly installed on the top of the arch frame 404, thereby causing the ring gear 702 and the driven gear 703 to rotate in opposite directions, and causing the rotating shaft 601 and the rotating drum 507 to rotate in opposite directions.

[0028] Please see Figures 3-7 The cooling assembly 800 includes two right side panels 801 fixedly installed on the outer wall of the right half of the inner liner tube 501, and two left side panels 802 fixedly installed on the outer wall of the left half of the inner liner tube 501. A partition strip 803 is provided in the middle between the left side panel 802 and the right side panel 801, and a partition strip 804 is provided in the middle between the partition strip 803 and the left side panel 802, and between the partition strip 803 and the right side panel 801.

[0029] A C-shaped piece 805 is fixedly installed on the outer wall of the upper half of the inner lining tube 501. The two ends of the C-shaped piece 805 are fixedly installed on the opposite sides of the two right side panels 801. The left side panel 802 and the first partition strip 803 are fixedly installed at the bottom of the C-shaped piece 805. A certain distance is reserved between the bottom ends of the right side panel 801, the left side panel 802 and the first partition strip 803 and the bottom end of the inner lining tube 501. The top end of the right side panel 801 extends to the top end of the inner lining tube 501. A certain distance is reserved between the top end of the second partition strip 804 and the C-shaped piece 805. The bottom end of the second partition strip 804 extends to the bottom end of the inner lining tube 501.

[0030] A liquid inlet channel is formed between the two right side panels 801, and a liquid outlet channel is formed between the two left side panels 802. An M-shaped channel is formed between the right side panels 801 and the left side panels 802 via spacers 803 and 804. The two ends of the M-shaped channel are connected to the liquid inlet channel and the liquid outlet channel, respectively. Specifically, the widths of the liquid inlet channel and the liquid outlet channel are equal, and their widths are twice the width of the M-shaped channel.

[0031] The upper half of the outer wall of the outer sleeve 502 has a drain port 806 and a liquid inlet 807. An annular cover 1 808 and an annular cover 2 810 are rotatably connected to the outer side of the outer sleeve 502. The annular cover 2 810 is located above the annular cover 1 808. A drain connector 809 is connected to the surface of the annular cover 1 808, and a liquid inlet connector 811 is connected to the surface of the annular cover 2 810. The drain connector 809 and the annular cover 1 808 are connected to the drain channel through the drain port 806, and the annular cover 2 810 and the liquid inlet connector 811 are connected to the inlet channel through the liquid inlet 807. Specifically, a circulating pump is connected between the drain connector 809 and the liquid inlet connector 811 via a pipe, allowing cooling water or cooling oil to circulate within the jacket to cool the hollow drill rod 500. Alternatively, a separate cooling water tank or cooling oil tank can be installed. The inlet connector 811 is connected to the suction pump through a pipe, and the suction pump is placed inside the cooling water tank or cooling oil tank. The drain connector 809 is connected to the cooling water tank or cooling oil tank through a pipe, so that the cooling water (cooling oil) circulates between the jacket and the cooling water tank (cooling oil tank).

[0032] Please see Figures 9-11The overload protection component 900 includes two limiting posts 901 fixedly installed on the rear side of the slide block 200. A guide rod 902 is fixedly installed at the bottom of each limiting post 901. A mounting cover 903 is slidably connected to the guide rod 902. A threaded sleeve 303 passes through the mounting cover 903. A spring 904 is sleeved on the guide rod 902. The surface of the guide rod 902 is threaded, and a support ring 905 is threadedly connected to the guide rod 902. The mounting cover 903 and the support ring 905 are respectively clamped at both ends of the spring 904. The elasticity of the spring 904 causes the mounting cover 903 to fit against the bottom end of the limiting post 901. When the threaded rod 302 rotates, the slide block 200 is driven to move downwards along the support frame 100 via the threaded sleeve 303, the mounting cover 903, and the spring 904. When the bottom end of the hollow drill rod 500 contacts a relatively hard object such as a rock, the resistance encountered by the hollow drill rod 500 is relatively large, making it difficult to continue drilling downwards. If the resistance encountered by the hollow drill rod 500 is greater than the elastic force of the spring 904, the mounting cover 903 and the threaded sleeve 303 can slide downwards along the guide rod 902, increasing the elastic force of the spring 904 and increasing the pressure exerted by the hollow drill rod 500 on the object at its bottom end. By turning the retaining ring 905, the initial compressed length of the spring 904 can be adjusted, thereby adjusting the initial pressure of the spring 904 on the mounting cover 903.

[0033] Two clamping rings 906 are fixedly installed inside the mounting cover 903. A threaded sleeve 303 is rotatably connected to the center of the mounting cover 903 and the two clamping rings 906. Each clamping ring 906 has a straight groove 907 arranged in an array. A slider 908 is arranged in an array between the two clamping rings 906. The upper and lower ends of the slider 908 are slidably connected to the clamping rings 906 through the straight grooves 907. An insert 909 is fixedly installed on the side of the slider 908 near the threaded sleeve 303. Slots 910 are arranged in an array on the circumference of the threaded sleeve 303. The insert 909 is inserted into the slot 910. A plug-in / pull-out drive is provided at the bottom of the slider 908. When the resistance experienced by the hollow drill rod 500 is greater than the elastic force of the spring 904, the mounting cover 903 slides downward along the guide rod 902, thereby driving the insert 909 to be pulled out of the slot 910 through the insertion and removal drive, causing the threaded sleeve 303 to rotate freely, so that the hollow drill rod 500 no longer continues to penetrate downward.

[0034] The insertion / removal drive includes a drive disk 912 rotatably connected to the bottom of the mounting cover 903. The drive disk 912 has an array of inclined grooves 913. A sliding column 911 is fixedly mounted on the bottom of the slider 908, and the sliding column 911 is slidably connected within the inclined grooves 913. An arc-shaped plate 914 is fixedly mounted on the front side of the bottom of the drive disk 912. A spiral groove 915 is formed on the front side of the arc-shaped plate 914. A sliding ball 916 is fixedly mounted on the rear side of the slide block 200, and the sliding ball 916 is slidably connected within the spiral groove 915. When the mounting cover 903 moves downward relative to the guide rod 902, the sliding ball 916 presses against the side wall of the spiral groove 915, causing the arc-shaped plate 914 and the drive disk 912 to rotate. This causes the drive disk 912, positioned on the side wall of the inclined groove 913, to press against the sliding column 911, causing the slider 908 to slide along the straight groove 907, thus pulling the insertion strip 909 out of the slot 910. A mounting base 917 is fixedly mounted on the rear side of the mounting cover 903. A friction plate 918 is fixedly mounted on the front side of the bottom end of the mounting base 917. The friction plate 918 is in contact with the circumferential surface of the drive disk 912. The friction between the friction plate 918 and the drive disk 912 prevents the drive disk 912 from rotating accidentally.

[0035] In use, the second motor 705 drives the driving gear 704 to rotate, which in turn drives the driven gear 703 and the ring gear 702 to rotate in opposite directions, thereby driving the rotating drum 507 and the rotating shaft 601 to rotate in opposite directions; then the first motor 301 drives the threaded rod 302 to rotate, which in turn drives the slide 200 to move downward along the stand 100 through the threaded sleeve 303, the mounting cover 903, and the spring 904, so that the drill bit 503 rotates and penetrates deeper into the soil. Meanwhile, cooling water or cooling oil is introduced into the inlet channel through the inlet connector 811. After passing through the M-shaped channel and the drain channel, the cooling water or cooling oil is discharged from the drain connector 809, thereby cooling the inner liner 501, the outer sleeve 502 and the drill bit 503. During the process of drill bit 503 drilling into the soil, some soil enters the inner liner tube 501 and is crushed by crushing cone 602. The spiral blade 603 then conveys the soil upward. Finally, the soil enters the hopper body 402 through the connecting window 508 and moves to the left along the bottom wall of the hopper body 402, and is discharged from the discharge port. When drill bit 503 encounters hard rock and cannot continue drilling downwards, drill bit 503 stops at the current depth, threaded rod 302 continues to rotate, causing threaded sleeve 303 and mounting cover 903 to slide downwards along guide rod 902. Spring 904 is compressed, and ball bearing 916 presses against the inner wall of spiral groove 915, causing arc plate 914 and drive disk 912 to rotate. Drive disk 912, located on the side wall of inclined groove 913, presses against sliding column 911, causing slider 908 to slide along straight groove 907, causing insert 909 to be pulled out of slot 910, causing threaded sleeve 303 to rotate with threaded rod 302 and spin freely inside mounting cover 903.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogeological drilling device, comprising a support frame (100), characterized in that: A slide block (200) is slidably connected to the front side of the upright frame (100) along its length direction. A vertical drive member (300) is provided in the middle of the upright frame (100) along its length direction. An overload protection member (900) is provided between the slide block (200) and the vertical drive member (300). An inclined hopper (400) is fixedly installed on the front side of the slide block (200). A hollow drill rod (500) and a soil conveying component (600) are rotatably connected through the middle of the inclined hopper (400). The soil conveying component (600) is located inside the hollow drill rod (500), and the hollow drill rod (500) and the soil conveying component (600) rotate in opposite directions. A connecting window (508) is arrayed on the circumferential surface of the top end of the hollow drill rod (500). The connecting window (508) is connected to the inclined hopper (400). A rotation drive component (700) is provided between the top ends of the hollow drill rod (500) and the soil conveying component (600). The hollow drill rod (500) has an internal interlayer, and a cooling assembly (800) is rotatably connected to the upper half of the hollow drill rod (500), and the cooling assembly (800) is in communication with the interlayer.

2. The hydrogeological drilling device according to claim 1, characterized in that: The vertical drive unit (300) includes a motor (301) fixedly installed on the top of the stand (100). The output end of the motor (301) is connected to a threaded rod (302). The threaded rod (302) is arranged along the length of the stand (100). A threaded sleeve (303) is threadedly connected to the threaded rod (302). The threaded sleeve (303) is connected to the rear side of the slide (200) through an overload protection unit (900).

3. The hydrogeological drilling device according to claim 1, characterized in that: The inclined hopper (400) includes a support frame (401) fixedly installed on the front side of the slide (200), a hopper body (402) fixedly installed on the front side of the support frame (401), a discharge port is provided on the left side of the hopper body (402), the bottom of the hopper body (402) is inclined and lower on the left and higher on the right, a positioning ring (403) is fixedly fixed through the center of the bottom of the hopper body (402), and an arch frame (404) is fixedly installed on the top of the hopper body (402).

4. The hydrogeological drilling device according to claim 3, characterized in that: The hollow drill rod (500) includes an inner liner (501) and an outer sleeve (502). The outer sleeve (502) is fitted over the outer side of the inner liner (501). An interlayer is formed between the outer wall of the inner liner (501) and the inner wall of the outer sleeve (502). A drill bit (503) is fixedly installed on the outer wall at the bottom end of the outer sleeve (502). The drill bit (503) seals the bottom end of the interlayer. A breaking tooth (504) is fixedly arranged at the bottom end of the drill bit (503). The inner liner tube (501) and the outer sleeve tube (502) are fixedly installed with connecting tubes (505), which seal the top of the interlayer. An annular flange (506) is fixedly installed on the outer wall of the connecting tube (505). A rotating cylinder (507) is fixedly installed at the top of the connecting tube (505). An array of connecting windows (508) is opened through the circumference of the rotating cylinder (507). The connecting tube (505) is rotatably connected inside the positioning ring (403). The rotating cylinder (507) is rotatably connected through the top center of the hopper body (402). The annular flange (506) and the rotating cylinder (507) are clamped at the bottom and top of the positioning ring (403).

5. The hydrogeological drilling device according to claim 1, characterized in that: The soil conveying component (600) includes a rotating shaft (601) disposed inside the hollow drill rod (500). The rotating shaft (601) is disposed along the axis of the hollow drill rod (500). A crushing cone (602) is fixedly installed at the bottom end of the rotating shaft (601). A spiral blade (603) is fixedly installed on the surface of the rotating shaft (601) located on the inner wall of the hollow drill rod (500).

6. The hydrogeological drilling device according to claim 1, characterized in that: The rotating drive component (700) includes a rotating ring (701) fixedly installed on the top circumferential surface of the hollow drill rod (500), a ring gear (702) fixedly installed on the top edge of the rotating ring (701), a driven gear (703) fixedly installed on the top circumferential surface of the soil conveying component (600), a driving gear (704) meshing between the ring gear (702) and the driven gear (703), and a motor (705) connected to the center of the driving gear (704).

7. The hydrogeological drilling device according to claim 4, characterized in that: The cooling assembly (800) includes two right side panels (801) fixedly installed on the outer wall of the right half of the inner liner tube (501), and two left side panels (802) fixedly installed on the outer wall of the left half of the inner liner tube (501). A partition strip (803) is provided in the middle between the left side panel (802) and the right side panel (801), and a partition strip (804) is provided in the middle between the partition strip (803) and the left side panel (802), the partition strip (803) and the right side panel (801). A C-shaped piece (805) is fixedly installed on the outer wall of the upper half of the inner lining tube (501). The two ends of the C-shaped piece (805) are respectively fixedly installed on the opposite side of the two right side panels (801). The left side panel (802) and the partition strip (803) are both fixedly installed at the bottom of the C-shaped piece (805). A liquid inlet channel is formed between the two right side panels (801), and a liquid outlet channel is formed between the two left side panels (802). An M-shaped channel is formed between the right side panels (801) and the left side panels (802) through partition strip one (803) and partition strip two (804). The two ends of the M-shaped channel are connected to the liquid inlet channel and the liquid outlet channel, respectively. The outer wall of the upper half of the outer sleeve (502) is provided with a drain port (806) and a liquid inlet (807). The outer sleeve (502) is rotatably connected to an annular cover one (808) and an annular cover two (810). The annular cover two (810) is located on the upper side of the annular cover one (808). The surface of the annular cover one (808) is connected to a drain connector (809), and the surface of the annular cover two (810) is connected to a liquid inlet connector (811). The drain connector (809) and the annular cover one (808) are connected to the drain channel through the drain port (806), and the annular cover two (810) and the liquid inlet connector (811) are connected to the liquid inlet channel through the liquid inlet (807).

8. The hydrogeological drilling device according to claim 1, characterized in that: The overload protection component (900) includes two limiting posts (901) fixedly installed on the rear side of the slide (200). Each limiting post (901) has a guide rod (902) fixedly installed at its bottom. A mounting cover (903) is slidably connected to the guide rod (902). A threaded sleeve (303) is disposed inside the mounting cover (903). A spring (904) is sleeved on the guide rod (902). The surface of the guide rod (902) is provided with threads. A retainer (905) is threadedly connected to the guide rod (902). The mounting cover (903) and the retainer (905) are respectively clamped on both ends of the spring (904).

9. The hydrogeological drilling apparatus according to claim 8, characterized in that: Two clamping rings (906) are fixedly installed inside the mounting cover (903). A threaded sleeve (303) is rotatably connected through the mounting cover (903) and the center of the two clamping rings (906). Each clamping ring (906) has a straight groove (907) arranged in an array. A slider (908) is arranged in an array between the two clamping rings (906). The upper and lower ends of the slider (908) are slidably connected to the clamping rings (906) through the straight groove (907). An insert (909) is fixedly installed on the side of the slider (908) near the threaded sleeve (303). Slots (910) are arranged in an array on the circumferential surface of the threaded sleeve (303). The insert (909) is inserted into the slot (910). A plug-in / pull-out drive is provided at the bottom of the slider (908).

10. The hydrogeological drilling device according to claim 9, characterized in that: The plug-in / plug-out drive includes a drive disk (912) rotatably connected to the bottom of the mounting cover (903), the drive disk (912) array having inclined grooves (913), and a sliding column (911) fixedly installed at the bottom of the slider (908), the sliding column (911) being slidably connected in the inclined groove (913). An arc-shaped plate (914) is fixedly installed on the front side of the bottom of the drive disk (912). A spiral groove (915) is opened on the front side of the arc-shaped plate (914). A sliding ball (916) is fixedly installed on the rear side of the slide block (200). The sliding ball (916) is slidably connected in the spiral groove (915). A mounting base (917) is fixedly installed on the rear side of the mounting cover (903), and a friction plate (918) is fixedly installed on the front side of the bottom end of the mounting base (917). The friction plate (918) is attached to the circumferential surface of the drive disk (912).

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