A convenient portable geological drilling sampling device and its installation and sampling method

Abstract

The present invention discloses a conveniently portable geological drilling sampling device and its installation and sampling method, which relates to the field of geological sampling. It includes a support frame, inside which a guiding frame is installed. A driving motor is installed on the inner wall of the guiding frame, and the output end of the driving motor is connected to a sliding plate. The top of the sliding plate is connected to a rotating motor. When sampling soils at different depths, the present invention can fix the inner drill bit by clamping it outside the limit teeth. Subsequently, the rotating motor is started to drive the outer drill bit to rotate in the reverse direction. After the outer drill bit is separated from the inner drill bit, the driving motor is started. The driving motor drives the sliding plate to move upward through a screw rod, driving the rotating motor and the outer drill bit to move upward synchronously until the thread on the inner wall of the outer drill bit is aligned with the second limit ring on the outer wall of the outer drill bit. Then the rotating motor is started to rotate in the forward direction, driving the thread of the outer drill bit to be fixed with the second limit ring, thereby fixing the outer drill bit and the inner drill bit.

Description

Technical Field

[0001] The invention relates to the field of geological sampling, in particular to a convenient and portable geological drilling sampling device and an installation sampling method thereof. Background Art

[0002] Environmental geological exploration refers to a detailed investigation and analysis of the geological environment of a certain area to understand its geological conditions, natural resources, environmental conditions, and possible geological disaster risks. This type of exploration is usually to assess the impact of human activities on the natural environment, or to provide a scientific basis for civil engineering, urban planning, environmental protection, etc. During the exploration, if it is necessary to survey the geological environment, a sampling device is required to collect and sample the soil. The existing sampling equipment is usually a drilling structure.

[0003] Prior art, such as the geological drilling sampling device and sampling method disclosed in Chinese Patent Publication No. CN118032415B, a geological drilling sampling device, comprising a support frame, the outer side wall corners of the support frame are fixedly connected with universal wheels, and the top surface of the support frame is fixedly connected with a support plate, a limit assembly is arranged on the top surface of the support plate, a fixed plate is fixedly connected to the limit assembly, a driving motor is fixedly connected to the top surface of the fixed plate, a power output end of the driving motor is connected to a fixed joint through a shaft coupling, a telescopic sampling assembly is arranged below the fixed joint, a sampling barrel three is fixedly connected to the bottom surface of the telescopic sampling assembly, a drilling probe three is fixedly connected to the bottom surface of the sampling barrel three, a clamping lifting assembly is arranged on the support frame, and the clamping lifting assembly is arranged on the side of the telescopic sampling assembly.

[0004] In the prior art, a telescopic drill bit different from the traditional one is used, so that soils of different depths can be drilled by telescoping the drill bit without adding a drill rod. However, due to the different inner and outer diameters of the telescopic drill bit, the outer side of the upper half of the drilled core has no protective structure during the drilling process. When drilling in deep positions, the drilled core will be broken and mixed, making it impossible to distinguish, resulting in the inconvenient detection of the drilled core. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a convenient and portable geological drilling sampling device and an installation sampling method thereof to solve the technical problem of inconvenient protection of the core during the sampling process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a convenient and portable geological drilling sampling device, comprising a support frame, a guide frame is installed inside the support frame, a driving motor is installed on the inner wall of the guide frame, the output end of the driving motor is connected to a sliding plate, the top of the sliding plate is connected to a rotating motor, an outer drill bit is installed at the output end of the rotating motor, an inner drill bit is installed inside the outer drill bit, the bottom end of the inner drill bit is connected to a limiting clamping tooth and a drill blade, the outer drill bit is threadedly connected to the inner drill bit, and the top of the inner drill bit is connected to the inner drill bit. A sealing bag is connected, and the sealing bag is wrapped around the outer side of the opening at the top of the inner drill bit. An outer drill bit is sleeved on the outer side of the output end of the rotating motor, and a plurality of through holes are provided on the top of the outer drill bit. A first two-way cylinder is installed on the side of the guide frame, and the outputs at both ends of the first two-way cylinder are connected to a clamping frame, and a ring is installed on the end of the clamping frame. When the first two-way cylinder drives the clamping frame to move inward, it fits with the outer side of the outer drill bit or the inner drill bit to clean the outer side of the outer drill bit or the inner drill bit, and when the outer drill bit fits with the limiting tooth, the inner drill bit is limited.

[0007] By adopting the above technical solution, the entire device can be conveniently moved, and the soil at different depths can be sampled through the telescopic drill bit. In addition, during the sampling process, the inner drill bit is controlled by the forward and reverse rotation of the motor.

[0008] The present invention is further configured such that a liquid supply system is installed inside the support frame, the liquid supply system comprises a guide pipe, an output pump, a filter valve and a hydraulic box, and the guide pipe is connected to the liquid injection sleeve.

[0009] Preferably, cooling lubricating liquid can be conveniently provided to the drill bit.

[0010] The present invention is further configured such that support plates are respectively installed on both sides of the support frame, support wheels are installed inside the support plates, and the support wheels include a lifting cylinder and a moving wheel. When the bottom end of the support wheel is retracted, it is located inside the support frame.

[0011] As a preferred embodiment, it is convenient to move the support frame.

[0012] The present invention is further configured such that a counterweight block is installed on the side of the guide frame, and the counterweight block is located above the driving motor, a screw is connected to the output end of the driving motor, the sliding plate is transmission-connected to the driving motor through the screw, and a sliding groove is opened inside the guide frame to facilitate the sliding of the sliding plate.

[0013] As a preferred embodiment, the guide frame can be counterweighted to improve the stability of the guide frame.

[0014] The present invention is further configured such that a top plate is connected to the top end of the sliding plate, the rotating motor is fixed to the top end of the top plate, a second double-acting cylinder is installed on the side of the sliding plate, a plug rod is connected to the output end of the second double-acting cylinder, and limiting frames are provided on both sides of the guiding frame inside the support frame. Plugging holes are installed on the inner walls of the two limiting frames.

[0015] Preferably, it can conveniently limit the sliding plate.

[0016] The present invention is further configured such that the output end of the rotating motor is connected to a connecting seat, the outer drill bit is drivingly connected to the rotating motor through the connecting seat, a plurality of liquid injection holes are provided in the inner wall of the connecting seat, and docking holes matching the liquid injection holes are provided at the top end of the outer drill bit.

[0017] Preferably, it can cool the drill bit and send the coolant into the outer drill bit through the liquid injection holes.

[0018] The present invention is further configured such that cleaning cotton is installed inside the ferrule, and the ferrule is attached to the outer walls of the outer drill bit and the inner drill bit through the cleaning cotton. A plurality of clamping grooves are provided in the inner wall of the ferrule, and the ferrule is snap-fitted with the limiting teeth through the clamping grooves.

[0019] Preferably, it can conveniently clamp the drill bit, thereby separating the drill bit.

[0020] The present invention is further configured such that a first limiting ring and a second limiting ring are provided on the outer wall of the inner drill bit. The first limiting ring is located above the limiting teeth, the second limiting ring is located outside the top end of the inner drill bit, and a plurality of penetration holes are provided in the inner wall of the second limiting ring.

[0021] Preferably, it can conveniently fix the outer drill bit and the inner drill bit.

[0022] The present invention is further configured such that a liquid injection sleeve is sleeved outside the output end of the rotating motor. The inside of the liquid injection sleeve is hollow, and the top end of the liquid injection sleeve is fixedly connected to the bottom end of the top plate. A plurality of openings are provided at the bottom end of the liquid injection sleeve, and each opening is aligned with the liquid injection hole.

[0023] Preferably, it can conveniently inject liquid into the inside and outside walls of the drill bit.

[0024] A method for conveniently carrying out geological drilling and sampling, the process of which includes the following steps:

[0025] Step 1: Push the support wheels downward through the cylinders on the support wheels to prop up the device. Then move the sampling device to the place where sampling is required. Drive the support wheels to retract, and the support frame fits on the ground, realizing the movement of the sampling device.

[0026] Step 2: Adjust the position of the inner drill bit according to the requirements. For example, when sampling at a deeper location is required, first start the driving motor to drive the screw to rotate. The screw drives the sliding plate to move downward until the limit clamping teeth are located between the two sets of rings. Then start the first double-acting cylinder. The double-acting cylinder contracts to drive the clamping frames to approach each other, so that the rings are clamped outside the limit clamping teeth, thereby limiting the inner drill bit. Start the rotating motor to rotate in the reverse direction, driving the outer drill bit to also rotate in the reverse direction. At this time, the first limit ring rotates and separates from the thread on the inner wall of the outer drill bit, releasing the limit on the inner drill bit;

[0027] Step 3: Start the driving motor to drive the sliding plate to move upward. At this time, the inner drill bit clamping frame is fixed through the fixed limit, so as to extract the inner drill bit from the outer drill bit until the second limit ring aligns with the thread on the inner wall of the outer drill bit. Start the rotating motor to rotate in the forward direction, so that the outer drill bit and the inner drill bit are fixed through the second limit ring. After fixing, start the first double-acting cylinder to drive the clamping frame away from the inner drill bit, completing the removal of the inner drill bit;

[0028] Step 4: The driving motor drives the sliding plate to move downward, so that the inner drill bit contacts the ground. Start the rotating motor to drive the drill bit to rotate, thereby drilling the soil. At the same time, the soil core during drilling is located inside the inner drill bit. When continuous drilling is carried out, at this time, the inner drill bit is completely below the soil, and the soil core also moves to the inside of the outer drill bit. At this time, the soil core is limited and blocked by the sealing bag to prevent the soil core from falling off into the cavity between the outer drill bit and the inner drill bit, avoiding blockage of the outer drill bit;

[0029] Step 5: During the drilling process, continuously supply liquid to the inside of the drill bit through the liquid supply system. The cooling and lubricating liquid will enter the liquid injection sleeve through the diversion pipe. Through multiple openings on the outer side of the liquid injection sleeve, the lubricating liquid flows to the outer wall of the outer drill bit, and part of the lubricating liquid flows into the inside of the outer drill bit along the liquid injection holes on the connecting seat. Finally, it flows to the outside of the inner drill bit through the inner wall of the outer drill bit, thereby also lubricating the inner drill bit, facilitating the lubrication of the inner drill bit and improving the lubrication effect.

[0030] In summary, the present invention mainly has the following beneficial effects:

[0031] 1. Through the provided inner drill bit, outer drill bit, and clamping frame, when sampling soil at different depths, the inner drill bit can be fixed by clamping it outside the limit teeth. Subsequently, the rotation motor is started to drive the outer drill bit to rotate in the reverse direction. After the outer drill bit is separated from the inner drill bit, the driving motor is started. The driving motor drives the sliding plate to move upward through the screw rod, driving the rotation motor and the outer drill bit to move upward synchronously until the thread on the inner wall of the outer drill bit aligns with the second limit ring on the outer wall of the outer drill bit. Then, the rotation motor is started to rotate in the forward direction, driving the thread of the outer drill bit to be fixed with the second limit ring, thereby fixing the outer drill bit and the inner drill bit, realizing the telescopic adjustment of the position of the drill bit, and facilitating the drilling and sampling of soil at different depths.

[0032] 2. Through the provided liquid supply system, drill bit, and liquid injection sleeve, during the drilling process, the liquid supply system supplies liquid to the inside of the liquid injection sleeve. The cooling and lubricating liquid enters the inside of the liquid injection sleeve and is discharged through the slotted opening provided at the bottom of the liquid injection sleeve. Part of the liquid directly flows down the outer wall of the outer drill bit to lubricate and cool the outside of the outer drill bit, while part of the liquid falls through the liquid injection hole and flows down the inner wall of the outer drill bit to lubricate the outer wall of the inner drill bit. Through these two lubrication methods, the inner drill bit or the outer drill bit can be lubricated, facilitating the extension of the inner drill bit and reducing the wear of the inner drill bit.

[0033] 3. The present invention also, through the provided drill bit, can, when the inner drill bit extends, seal and limit the soil core sampled by the drill bit through the sealing bag, thereby reducing the breakage of the soil core due to reasons such as vibration. Moreover, during the injection process of the lubricating liquid, the soil core is isolated by the sealing bag to prevent the soil core from being contaminated by the lubricating liquid and reduce the loss of the soil core. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of the present invention;

[0035] Figure 2 is a schematic structural diagram of the internal liquid supply system, guide frame, and drill bit installation position of the present invention;

[0036] Figure 3 is a schematic structural diagram of the guide frame of the present invention;

[0037] Figure 4 is a schematic structural diagram of the back of the guide frame of the present invention;

[0038] Figure 5 is a schematic structural diagram of the connection between the rotation motor and the drill bit of the present invention;

[0039] Figure 6 is a schematic structural diagram of the present invention when the inner drill bit does not extend;

[0040] Figure 7 is a schematic structural diagram of the present invention when the inner drill bit extends;

[0041] Figure 8 This is a schematic structural diagram of the liquid injection sleeve and the connecting seat of the present invention being aligned.

[0042] Figure 9 This is a schematic structural diagram of the clamping frame and the outer drill bit of the present invention being aligned.

[0043] Figure 10 This is a schematic structural diagram of the clamping frame and the inner drill bit of the present invention being aligned.

[0044] Figure 11 This is a schematic structural diagram of the clamping frame fixing the inner drill bit of the present invention.

[0045] Figure 12 This is a schematic internal structural diagram of the clamping frame of the present invention.

[0046] Explanation of reference numerals:

[0047] 1, support frame; 2, liquid supply system; 201, diversion pipe; 202, hydraulic tank; 3, support plate; 301, support wheel; 4, guide frame; 401, counterweight; 402, drive motor; 403, screw; 404, first double-acting cylinder; 5, sliding plate; 501, top plate; 502, rotating motor; 503, second double-acting cylinder; 5031, insertion rod; 504, connecting seat; 505, liquid injection hole; 6, outer drill bit; 601, inner drill bit; 602, limit locking teeth; 603, drill bit blade; 604, first limit ring; 605, second limit ring; 606, sealing bag; 607, docking hole; 7, limit frame; 701, insertion hole; 8, clamping frame; 801, sleeve; 802, cleaning cotton; 803, clamping groove; 9, liquid injection sleeve. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0049] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0050] Embodiment: Please refer to Figures 1 to 2 , a geological drilling and sampling device convenient to carry, including a support frame 1, a liquid supply system 2 is installed inside the support frame 1, the liquid supply system 2 includes a diversion pipe 201, an output pump, a filter valve and a hydraulic tank 202, support plates 3 are respectively installed on both sides of the support frame 1, a support wheel 301 is installed inside the support plate 3, the support wheel 301 includes a lifting cylinder and a moving wheel, and when the bottom end of the support wheel 301 is retracted, it is located inside the support frame 1, which is convenient for moving the device.

[0051] Please refer toFigures 1 to 6 A guide frame 4 is installed inside the support frame 1, a driving motor 402 is installed on the inner wall of the guide frame 4, the output end of the driving motor 402 is connected to a sliding plate 5, the top of the sliding plate 5 is connected to a rotating motor 502, the output end of the rotating motor 502 is connected to a connecting seat 504, the outer drill bit 6 is connected to the rotating motor 502 through the connecting seat 504, the inner wall of the connecting seat 504 is provided with a plurality of groups of injection holes 505, the inner drill bit 601 is installed inside the outer drill bit 6, the bottom end of the inner drill bit 601 is connected to a limiting clamping tooth 602 and a drill blade 603, and the outer wall of the inner drill bit 601 is provided with a first limiting ring 604 and the second limiting ring 605, the first limiting ring 604 is located above the limiting tooth 602, the second limiting ring 605 is located outside the top end of the inner drill bit 601, and the inner wall of the second limiting ring 605 is provided with multiple groups of penetration holes, the top end of the inner drill bit 601 is connected to a sealing bag 606, and the sealing bag 606 is wrapped around the outside of the top opening of the inner drill bit 601, the outer side of the output end of the rotating motor 502 is sleeved with an outer drill bit 6, and the top end of the outer drill bit 6 is provided with a docking hole 607 matching the injection hole 505, and the outer drill bit 6 and the inner drill bit 601 are set, Soil samples at different depths can be taken.

[0052] See also Figures 1 to 12 A first two-way cylinder 404 is installed on the side of the guide frame 4, and the outputs at both ends of the first two-way cylinder 404 are connected to the clamping frame 8. A ring 801 is installed on the end of the clamping frame 8. When the first two-way cylinder 404 drives the clamping frame 8 to move inward, a cleaning cotton 802 is installed on the inner side of the ring 801, and the ring 801 is fitted with the outer walls of the outer drill bit 6 and the inner drill bit 601 through the cleaning cotton 802. The inner wall of the ring 801 is provided with multiple groups of clamping grooves 803. The ring 801 is engaged and connected with the limiting teeth 602 through the clamping grooves 803, and fits with the outer side of the outer drill bit 6 or the inner drill bit 601 to clean the outer side of the outer drill bit 6 or the inner drill bit 601. When the outer drill bit 6 is fitted with the limiting teeth 602, the inner drill bit 601 is limited.

[0053] In the above embodiments, please refer to Figures 1 to 4 A counterweight 401 is installed on the side of the guide frame 4, and the counterweight 401 is located above the driving motor 402 to improve the stability of the guide frame 4. A screw 403 is connected to the output end of the driving motor 402. The sliding plate 5 is connected to the driving motor 402 through the screw 403, and a sliding groove is opened inside the guide frame 4 to facilitate the sliding of the sliding plate 5.

[0054] In the above embodiments, please refer to Figures 3 to 6, the top end of the sliding plate 5 is connected to a top plate 501, a rotating motor 502 is fixed to the top end of the top plate 501, a second double-acting cylinder 503 is installed on the side of the sliding plate 5, the output end of the second double-acting cylinder 503 is connected to a plug rod 5031, inside the support frame 1, limit frames 7 are provided on both sides of the guide frame 4, insertion holes 701 are installed on the inner walls of the two groups of limit frames 7, multiple through holes are provided inside the insertion holes 701, and the through holes are matched with the plug rod 5031 in size. After the sliding plate 5 moves, the plug rod 5031 is pushed by the second double-acting cylinder 503 to be inserted into the insertion hole 701 to limit the sliding plate 5. When the sliding plate 5 moves up and down, the second double-acting cylinder 503 retracts.

[0055] In the above embodiment, specifically, please refer to Figures 6 to 8 , a liquid injection sleeve 9 is sleeved outside the output end of the rotating motor 502, the diversion pipe 201 is connected to the liquid injection sleeve 9, the inside of the liquid injection sleeve 9 is hollow, and the top end of the liquid injection sleeve 9 is fixedly connected to the bottom end of the top plate 501. Multiple openings are provided at the bottom end of the liquid injection sleeve 9, and each group of openings is aligned with the liquid injection hole 505, which is convenient for injecting liquid into the drill bit to improve the lubrication effect.

[0056] During the use of the present invention, first, the cylinder on the support wheel 301 pushes the support wheel 301 downward to lift the device. Subsequently, the sampling device is moved to the place where sampling is required, and the support wheel 301 is driven to retract, and the support frame 1 fits on the ground, realizing the movement of the sampling device. During the sampling process, first, the position of the inner drill bit 601 is adjusted according to requirements. For example, when sampling at a deeper position, first start the driving motor 402 to drive the screw 403 to rotate. The screw 403 drives the sliding plate 5 to move downward until the limit clamping teeth 602 are located between the two sets of ferrules 801. Then start the first double-acting cylinder 404. The first double-acting cylinder 404 contracts to drive the clamping frames 8 to approach each other, so that the ferrule 801 clamps outside the limit clamping teeth 602, thereby limiting the inner drill bit 601. Start the rotating motor 502 to rotate in the reverse direction, driving the outer drill bit 6 to rotate in the reverse direction. At this time, the first limit ring 604 rotates and separates from the thread on the inner wall of the outer drill bit 6, releasing the limit on the inner drill bit 601. Then start the driving motor 402 to drive the sliding plate 5 to move upward. At this time, the inner drill bit 601 is fixed and limited by the clamping frame 8, so as to extract the inner drill bit 601 from the outer drill bit 6 until the second limit ring 605 aligns with the thread on the inner wall of the outer drill bit 6. Start the rotating motor 502 to rotate in the forward direction, so that the outer drill bit 6 and the inner drill bit 601 are fixed through the second limit ring 605. After fixation, start the first double-acting cylinder 404 to drive the clamping frame 8 away from the inner drill bit 601, completing the removal of the inner drill bit 601. Then drive the sliding plate 5 to move downward through the driving motor 402, so that the inner drill bit 601 contacts the ground. Start the rotating motor 502 to drive the drill bit to rotate, thereby drilling the soil. At the same time, the soil core during drilling is located inside the inner drill bit 601. When continuously drilling, at this time, the inner drill bit 601 is completely below the soil, and the soil core also moves to the inside of the outer drill bit 6. At this time, the soil core is limited and blocked by the sealing bag 606 to prevent the soil core from falling off into the cavity between the outer drill bit 6 and the inner drill bit 601, avoiding blockage of the outer drill bit 6. And during the drilling process, the outer drill bit 6 is continuously supplied with liquid through the liquid supply system 2. The cooling lubricating liquid will enter the liquid injection sleeve 9 through the diversion pipe 201. Through the multiple openings on the outer side of the liquid injection sleeve 9, the lubricating liquid flows to the outer wall of the outer drill bit 6, and part of the lubricating liquid flows into the outer drill bit 6 through the liquid injection holes 505 on the connecting seat 504. Finally, it flows to the outside of the second limit ring 605 on the outer side of the inner drill bit 601 through the inner wall of the outer drill bit 6, and there are permeation holes on the outer wall of the second limit ring 605, so as to lubricate the inner drill bit 601 as well, facilitating the lubrication of the inner drill bit 601 and improving the lubrication effect. At the same time, through the sealing bag 606, it can effectively reduce the interference of the lubricating liquid on the soil core during the liquid injection process and improve the integrity of the soil core;

[0057] After sampling is completed, start the driving motor 402 to drive the sliding plate 5 to move upward as a whole. At this time, start the rotating motor 502 at a low speed to drive the outer drill bit 6 and the inner drill bit 601 to rotate at a low speed. And at the same time, start the first double-acting cylinder 404 to drive the clamping frame 8 to fit against the outer wall of the outer drill bit 6, and clean the outer wall of the outer drill bit 6 through the cleaning cotton 802. When the inner drill bit 601 moves to the inside of the cleaning cotton 802, start the first double-acting cylinder 404 again to drive the cleaning cotton 802 to fit against the outside of the inner drill bit 601, and also clean the outside of the inner drill bit 601, improving the cleanliness of the drill bit.

[0058] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and are not limitations to the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A convenient portable geological drilling and sampling device, comprising a support frame, characterized in that: The guide frame is installed inside the support frame, and a driving motor is installed on the inner wall of the guide frame, and the output end of the driving motor is connected to a sliding plate, and the top of the sliding plate is connected to a rotating motor, and an outer drill bit is installed on the output end of the rotating motor, and an inner drill bit is installed inside the outer drill bit, and the bottom end of the inner drill bit is connected to a limiting clamping tooth and a drill blade, the outer drill bit is threadedly connected to the inner drill bit, and the top end of the inner drill bit is connected to a sealing bag, and the sealing bag is wrapped around the outer side of the top opening of the inner drill bit, and the outer drill bit is sleeved on the outer side of the output end of the rotating motor, and a plurality of through holes are provided on the top end of the outer drill bit, and a first bidirectional cylinder is installed on the side of the guide frame, and the outputs at both ends of the first bidirectional cylinder are connected to a clamping frame, and a ring is installed on the end of the clamping frame, and when the first bidirectional cylinder drives the clamping frame to move inward, it fits with the outer side of the outer drill bit or the inner drill bit to clean the outer side of the outer drill bit or the inner drill bit, and when the outer drill bit fits with the limiting clamping tooth, the inner drill bit is limited; A liquid supply system is installed inside the support frame, and the liquid supply system includes a guide pipe, an output pump, a filter valve and a hydraulic box; The output end of the rotating motor is connected to a connecting seat, the outer drill bit is connected to the rotating motor through the connecting seat, the inner wall of the connecting seat is provided with a plurality of groups of injection holes, and the top end of the outer drill bit is provided with a docking hole matching the injection hole; Cleaning cotton is installed on the inner side of the ferrule, and the ferrule is fitted with the outer walls of the outer drill bit and the inner drill bit through the cleaning cotton. The inner wall of the ferrule is provided with multiple groups of clamping grooves, and the ferrule is connected with the limit clamping teeth through the clamping grooves; The outer wall of the inner drill bit is provided with a first limiting ring and a second limiting ring, the first limiting ring is located above the limiting teeth, the second limiting ring is located outside the top end of the inner drill bit, and the inner wall of the second limiting ring is provided with a plurality of penetration holes; The outer side of the output end of the rotating motor is sleeved with a liquid injection sleeve, the interior of the liquid injection sleeve is hollow, and the top of the liquid injection sleeve is fixedly connected to the bottom of the top plate. The bottom of the liquid injection sleeve is provided with multiple groups of openings, and each group of openings is aligned with the liquid injection hole.

2. The portable geological drilling and sampling device according to claim 1, wherein: Support plates are respectively installed on both sides of the support frame, and support wheels are installed inside the support plates. The support wheels include a lifting cylinder and a moving wheel. When the bottom end of the support wheel is retracted, it is located inside the support frame.

3. The portable geological drilling and sampling device according to claim 1, characterized in that: A counterweight is installed on the side of the guide frame, and the counterweight is located above the drive motor. A screw is connected to the output end of the drive motor. The sliding plate is connected to the drive motor through the screw, and a sliding groove is opened inside the guide frame to facilitate the sliding of the sliding plate.

4. The portable geological drilling and sampling device according to claim 1, wherein: The top of the sliding plate is connected to the top plate, the rotating motor is fixed on the top of the top plate, a second bidirectional cylinder is installed on the side of the sliding plate, the output end of the second bidirectional cylinder is connected to the plug rod, and the interior of the support frame is provided with limit frames on both sides of the guide frame, and the inner walls of the two sets of limit frames are installed with plug holes, and the interior of the plug holes is provided with multiple sets of through holes, and the through holes match the size of the plug rod.

5. An installation and sampling method for a conveniently portable geological drilling device, characterized in that The process of using the portable geological drilling sampling device according to any one of claims 1 to 4 comprises the following steps: Step 1: Push the supporting wheels downward through the cylinders on the supporting wheels to prop up the device. Then move the sampling device to the place where sampling is required, drive the supporting wheels to retract, and make the support frame fit on the ground; Step 2: Adjust the position of the inner drill bit according to requirements. When sampling at a deep position, first start the driving motor to drive the screw rod to rotate. The screw rod drives the sliding plate to move downward until the limit teeth are located between the two sets of rings. Start the first double-acting cylinder. The double-acting cylinder contracts to drive the clamping frames to approach each other, so that the rings clamp outside the limit teeth, thereby limiting the inner drill bit. Start the rotating motor to rotate in the reverse direction, driving the outer drill bit to rotate in the reverse direction as well. At this time, the first limit ring rotates and separates from the thread on the inner wall of the outer drill bit, releasing the limit on the inner drill bit; Step 3: Start the driving motor to drive the sliding plate to move upward. At this time, the inner drill bit is fixed and limited by the clamping frame, so the inner drill bit is pulled out from the outer drill bit until the second limit ring aligns with the thread on the inner wall of the outer drill bit. Start the rotating motor to rotate in the forward direction, so that the outer drill bit and the inner drill bit are fixed through the second limit ring. After fixing, start the first double-acting cylinder to drive the clamping frame away from the inner drill bit to complete the removal of the inner drill bit; Step 4: The driving motor drives the sliding plate to move downward, making the inner drill bit contact the ground. Start the rotating motor to drive the drill bit to rotate, thereby drilling the soil. At the same time, the soil core during drilling is located inside the inner drill bit. When continuously drilling, at this time the inner drill bit is completely below the soil, and the soil core also moves to the inside of the outer drill bit. At this time, the soil core is limited and blocked by the sealing bag; Step 5: During the drilling process, continuously supply liquid to the inside of the drill bit through the liquid supply system. The cooling lubricant will enter the liquid injection sleeve through the diversion pipe. Through multiple openings on the outer side of the liquid injection sleeve, the lubricant flows to the outer wall of the outer drill bit, and part of the lubricant is injected into the inside of the outer drill bit along the liquid injection holes on the connecting seat.

Images