Drilling equipment for geological exploration

Abstract

The invention relates to the technical field of geological exploration, in particular to drilling equipment for geological exploration. The interior of the drilling rod is of a hollow structure, a plurality of blocking pieces are arranged around the bottom of the drilling rod, and the blocking pieces are connected with the drilling rod through elastic hinges and can synchronously rotate along with the drilling rod to drill into the stratum; the sampling barrel is arranged in the drilling rod in an up-down sliding mode, the top of the sampling barrel is connected with the drilling rod through a first transmission mechanism, and the bottom of the sampling barrel is open and provided with a diagonal plane and used for pushing away the blocking piece and sampling from the stratum in the drilling process; a second transmission mechanism is arranged in each extension rod; the multiple extension rods are sequentially connected end to end and arranged between the equipment body and the drilling rod, the second transmission mechanisms in the extension rods are sequentially in transmission connection, the second transmission mechanism in the extension rod at the tail end is in transmission connection with the first transmission mechanism, and geological sampling at the specific depth can be achieved on the premise that the drilling rod is not taken out.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration, and in particular to a drilling device for geological exploration. Background Art

[0002] Geological exploration is the use of drilling technology to exploit underground natural resources or explore the distribution of strata, extract physical samples, and provide relevant data for experiments. Drilling equipment varies according to its application field, ranging from thin-walled drills that can be held in hand and weigh only more than ten kilograms to ultra-deep hole drills that require special trucks to load thousands of tons. Depending on its use, the structure of drilling equipment naturally ranges from simple to complex. The simplest may be just a single-speed rotator or impact mechanism, and the complex ones such as marine scientific drilling ships almost completely embrace modern science and technology. At present, the most common ones are rock coring drills, hydrogeological drills, engineering drills, and oil drills; the specific drilling method to be used depends on the different terrain, environment and actual conditions.

[0003] In the prior art, when the hollow drill rod is drilled down, the geological sample will enter the drill rod, and the sample can be taken out when the drill rod is taken out. However, when drilling and sampling at a specific depth or a stratum that is more prone to hole collapse, the drill rod has already contained the sample during the drilling process, and the geological sample originally contained must be taken out after drilling to a certain depth before drilling and sampling can continue. If the drilling is deep, the removal operation will be cumbersome, which will affect the progress of the drilling and sampling construction and increase the workload. Therefore, a drilling equipment for geological exploration is proposed to optimize the prior art. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The invention provides a drilling device for geological exploration, aiming to solve the problem of how to realize geological sampling without taking out the drilling rod.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the present invention proposes a drilling equipment for geological exploration, comprising: an equipment body; a drilling rod, which has a hollow structure inside and a plurality of baffles arranged around the bottom, the baffles being connected to the drilling rod through an elastic hinge and being able to rotate synchronously with the drilling rod to drill into the formation; a sampling barrel, which is arranged inside the drilling rod for sliding up and down, is connected to the drilling rod through a first transmission mechanism at the top, is open at the bottom and has an oblique surface at the opening, which is used to push open the baffles and take samples from the formation during drilling; at least one extension rod, each of which has a second transmission mechanism inside; a plurality of the extension rods are arranged end to end in sequence between the equipment body and the drilling rod, and the second transmission mechanism inside each of the extension rods is transmission-connected in sequence, and the second transmission mechanism in the extension rod at the end is transmission-connected to the first transmission mechanism.

[0008] A further technical solution is that the top of the extension rod has a connecting inner tube, and the bottom has a connecting outer tube; the top of the drilling rod has the connecting inner tube, and the drilling rod and the extension rod, and the extension rod and the extension rod are fixedly connected by plugging and fitting the connecting outer tube and the connecting inner tube.

[0009] A further technical solution is that a first connecting hole is provided on the connecting outer tube; corresponding to the first connecting hole, a second connecting hole is provided on the connecting inner tube, and the first connecting hole and the second connecting hole are fixedly connected by a connecting piece.

[0010] A further technical solution is that the first transmission mechanism includes a threaded transmission rod rotatably connected to the sampling barrel, and the top of the threaded transmission rod has a transmission slot; the second transmission mechanism includes a transmission shaft and a support plate arranged inside the extension rod, the top of the transmission shaft has the transmission slot, and the bottom has a transmission block matching the transmission slot, the support plate is fixedly connected to the extension rod, and a limiting hole is provided on it for limiting the radial movement of the transmission shaft.

[0011] A further technical solution is that a magnet is fixed to the bottom of the transmission slot for adsorbing the transmission block matched therewith.

[0012] A further technical solution is that the equipment body includes a frame, a first drive mechanism, a second drive mechanism and a storage structure; the first drive mechanism is slidably arranged on the frame up and down, and is connected to the connecting inner tube of the extension rod, for driving the extension rod to rotate, and then driving the drilling rod to rotate; the second drive mechanism is arranged on the frame and connected to the first drive mechanism, for driving the first drive mechanism to move up and down, for realizing downward drilling; the storage structure is fixed on the frame, for storing the drilling rod or the extension rod.

[0013] A further technical solution is that the frame includes a vertical frame, a bottom frame, a push handle and wheels; the top of the vertical frame is fixedly connected to the push handle, the bottom is fixedly connected to one end of the bottom frame, and the wheels are fixed at the connection between the vertical frame and the bottom frame; pressing down the push handle can pry up the end of the bottom frame away from the vertical frame with the wheel as a fulcrum.

[0014] A further technical solution is that the first driving mechanism includes a first motor and a mounting plate, and the second driving mechanism includes a second motor, a screw, a guide rod and a slider; the second motor is fixed to the top of the stand and is drivingly connected to the screw, the screw is rotatably connected to the stand, both ends of the guide rod are fixedly connected to the stand and are arranged parallel to the screw, the slider is threadedly connected to the screw, and is slidably connected to the guide rod;

[0015] The first motor is fixedly mounted on the mounting plate and is fixedly connected to the sliding block, and an output end of the first motor is fixedly connected to the drilling rod or the extension rod.

[0016] A further technical solution is that the storage structure includes a plurality of beams horizontally fixed on the vertical frame; along the extension direction of the beams, a plurality of arc seats are arranged in an array on each of the beams, and the shape of the arc seats is adapted to the shape of the drilling rod and the extension rod; the opening of the arc seat is provided with an openable and closable cover plate, and the inner side of the cover plate is provided with an anti-slip pad.

[0017] A further technical solution is that the blocking piece is triangular in shape, a plurality of the blocking pieces are connected to the opening at the bottom of the drilling rod via spring hinges, and all of the blocking pieces form a conical structure.

[0018] (III) Beneficial effects

[0019] The present invention forms a conical drill bit by setting a hollow drilling rod and connecting a baffle plate at the bottom of the drilling rod through an elastic hinge. The conical drill bit can close the opening of the drilling rod while facilitating drilling. When the drilling rod is drilled into the formation, the baffle plate can effectively break and stir the soil, thereby improving the drilling efficiency. At the same time, the connection method of the elastic hinge ensures the adaptive flexibility of the baffle plate, making the drilling process smoother. A sampling barrel is slidably arranged inside the drilling rod. When the sampling position is drilled, the sampling barrel is pushed out by the rotation of the threaded rod, so that the sample can be directly entered into the sampling barrel by continuing to drill, thereby realizing drilling sampling at a certain depth without taking out the drilling rod. The bottom opening of the sampling barrel has a chamfered surface, and the design of the chamfered surface helps to better push open the baffle plate and ensure the smooth sampling. In addition, the up and down sliding setting of the sampling barrel is also convenient for taking out the sample after the drilling is completed.

[0020] The present invention also extends the drilling depth by connecting the extension rod to the top of the drilling rod, and the extension rods can be combined with each other, so that the device has the function of extending the drilling depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the drilling equipment used for geological exploration;

[0022] Figure 2 A schematic diagram of the interconnection between the extension rod and the drilling rod;

[0023] Figure 3 This is a schematic diagram of the connection between the drilling rod and the sampling barrel;

[0024] Figure 4 Schematic diagram of the internal structure of the extension rod;

[0025] Figure 5 A schematic cross-sectional view of a connection between an inner tube and an outer tube;

[0026] Figure 6 It is a schematic diagram of the structure of the main body of the equipment;

[0027] Figure 7 is a schematic diagram of the structural composition of the second driving mechanism;

[0028] Figure 8 This is a schematic diagram of the storage structure.

[0029] [Description of Reference Numerals]

[0030] 1: Equipment body; 11: Frame; 111: Stand; 112: Base; 113: Push handle; 114: Wheel; 12: First drive mechanism; 121: First motor; 122: Mounting plate; 13: Second drive mechanism; 131: Second motor; 132: Screw rod; 133: Guide rod; 134: Slider; 14: Storage structure; 141: Crossbeam; 142: Arc seat; 143: Cover plate; 2: Drilling rod; 21: Baffle; 3: Sampling barrel; 4: Extension rod; 5: First transmission mechanism; 51: Threaded transmission rod; 6: Second transmission mechanism; 61: Transmission shaft; 62: Support plate; 7: Connecting inner tube; 8: Connecting outer tube; 9: Transmission notch; 91: Magnet; 10: Transmission block. DETAILED DESCRIPTION

[0031] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0032] This embodiment provides a drilling device for geological exploration, such as Figure 1-Figure 4As shown, it includes: an equipment body 1; a drilling rod 2, which has a hollow structure inside and a plurality of baffles 21 arranged around the bottom, the baffles 21 are connected to the drilling rod 2 through an elastic hinge, and can rotate synchronously with the drilling rod 2 to drill into the formation; a sampling barrel 3, which is slidably arranged inside the drilling rod 2, the top of which is connected to the drilling rod 2 through a first transmission mechanism 5, the bottom is open and has a beveled surface at the opening, which is used to push open the baffle 21 and take samples from the formation during drilling; at least one extension rod 4, each of which is provided with a second transmission mechanism 6; multiple extension rods 4 are arranged end to end between the equipment body 1 and the drilling rod 2, and the second transmission mechanism 6 inside each extension rod 4 is sequentially connected, and the second transmission mechanism 6 in the endmost extension rod 4 is sequentially connected, and the second transmission mechanism 6 in the endmost extension rod 4 is connected to the first transmission mechanism 5.

[0033] The equipment body 1 is the supporting structure of the whole equipment, which mainly plays the role of supporting bearing and providing power. It is preferably a steel frame structure, which can not only improve the assembly efficiency, but also has good structural bearing capacity. A power device for rotating the drilling rod 2 or the extension rod 4 is arranged on it according to production requirements. The drilling rod 2 has a barrel-shaped structure with an opening at the bottom, and the baffle 21 is connected to the bottom opening by an elastic hinge. Without the action of external force, all the baffles 21 form a conical structure, which can rotate and drill into the formation under the drive of the equipment body 1. The sampling barrel 3 is a barrel-shaped structure with a diameter smaller than that of the drilling rod 2. A slide groove is arranged on the outside, and the slide groove can form a sliding fit with the slide key on the inner wall of the drilling rod 2. Through the sliding fit of the slide groove and the slide key, the sampling barrel 3 is slidably installed in the drilling rod 2. The tops of the extension rod 4 and the drilling rod 2 can be connected to the power device of the equipment body 1 and rotated under the drive of the power device.

[0034] The above scheme forms a conical drill bit by setting a hollow drilling rod 2 and connecting a baffle 21 at the bottom of the drilling rod 2 through an elastic hinge. This conical drill bit can close the opening of the drilling rod 2 while facilitating drilling. When the drilling rod 2 is drilled into the formation, the baffle 21 can effectively break and stir the soil, thereby improving the drilling efficiency. At the same time, the connection method of the elastic hinge ensures the adaptive flexibility of the baffle 21, making the drilling process smoother. The sampling barrel 3 is slidably arranged inside the drilling rod 2. When the sampling position is drilled, the sampling barrel 3 is pushed out by the rotation of the threaded rod, so that the sample can be directly entered into the sampling barrel 3 by continuing to drill, so as to realize drilling sampling at a certain depth without taking out the drilling rod 2. The bottom opening of the sampling barrel 3 has a chamfered surface, and the design of the chamfered surface helps to better push open the baffle 21 and ensure the smooth sampling. In addition, the up and down sliding setting of the sampling barrel 3 also facilitates the removal of the sample after the drilling is completed. The design of the extension rod 4 further enhances the flexibility and applicability of the device. Multiple extension rods 4 are arranged end to end between the device body 1 and the drilling rod 2, and the second transmission mechanism 6 inside each extension rod 4 is sequentially connected. This enables the device body 1 to transmit power to the drilling rod 2 and the sampling barrel 3 through the extension rod 4, thereby achieving long-distance drilling and sampling. At the same time, the provision of multiple extension rods 4 also increases the stability of the device, allowing the device to adapt to the drilling needs of formations of different depths and complexities.

[0035] Specifically, in this embodiment, the top of the extension rod 4 has a connecting inner tube 7, and the bottom has a connecting outer tube 8; the top of the drilling rod 2 has a connecting inner tube 7, and the drilling rod 2 and the extension rod 4, and the extension rods 4 and the extension rods 4 are fixedly connected by plugging and fitting the connecting outer tube 8 and the connecting inner tube 7. It should be noted here that the connecting inner tube 7 at the top of the drilling rod 2 and the connecting inner tube 7 at the top of the extension rod 4 have the same specifications and sizes, and can both be connected to the power device of the equipment body 1.

[0036] This plug-in fit ensures the structural stability between the drilling rod 2 and the extension rod 4, and between the extension rods 4 and the extension rods 4. During the drilling process, the equipment needs to withstand greater pressure and torque, and the plug-in fit can effectively transmit these forces and torques to ensure the smooth progress of the drilling operation. Secondly, the plug-in fit simplifies the assembly process and improves assembly efficiency. Compared with traditional bolt connections or welding methods, plug-in fit does not require complicated installation steps and tools. It only requires aligning and inserting the connecting outer tube 8 and the connecting inner tube 7, which greatly saves assembly time.

[0037] Combination Figure 5As shown, in this embodiment, a first connection hole is provided on the connecting outer tube 8; corresponding to the first connection hole, a second connection hole is provided on the connecting inner tube 7, and the first connection hole and the second connection hole are fixedly connected by a connecting piece. Since the extension rod 4 and the drilling rod 2 need to withstand a certain pressure and torque during the drilling process, in order to ensure the firmness and reliability of the plug-in, the two are fixed by using a connecting piece, which can effectively increase the reliability of the connection and avoid production interruption caused by disconnection of the connection during the drilling.

[0038] Specifically, the first transmission mechanism 5 includes a threaded transmission rod 51 rotatably connected to the sampling barrel 3, and the top of the threaded transmission rod 51 has a transmission notch 9. The second transmission mechanism 6 includes a transmission shaft 61 and a support plate 62 arranged inside the extension rod 4, the top of the transmission shaft 61 has a transmission notch 9, and the bottom has a transmission block 10 matched with the transmission notch 9, the support plate 62 is fixedly connected to the extension rod 4, and a limited position hole is provided thereon to limit the radial movement of the transmission shaft 61. The first transmission mechanism 5 is rotatably connected to the sampling barrel 3 through the threaded transmission rod 51, and is connected to the threaded hole threaded window hole at the top of the drilling rod 2. This threaded transmission not only ensures the stability and accuracy of the transmission, but also can prevent the sampling barrel 3 from shaking or falling off during the drilling process through the close fit of the thread. At the same time, the transmission notch 9 arranged at the top of the threaded transmission rod 51 is convenient for connecting and transmitting with the second transmission mechanism 6 on the extension rod 4. The transmission shaft 61 of the second transmission mechanism 6 has a transmission notch 9 at the top and a transmission block 10 matched with the transmission notch 9 at the bottom. This design realizes the stable transmission of the transmission shaft 61 inside the extension rod 4. The support plate 62 is fixedly connected to the extension rod 4, and a limiting hole is provided on it to limit the radial movement of the transmission shaft 61. This not only enhances the stability of the transmission shaft 61, but also prevents the radial movement of the transmission shaft 61 during the transmission process, further improving the transmission accuracy and stability of the device. The above-mentioned transmission notch 9 is preferably a hexagonal notch, and the transmission block 10 is preferably a hexagonal plug, which has stable transmission and long service life.

[0039] Preferably, a magnet 91 is fixed at the bottom of the transmission slot 9 for adsorbing the transmission block 10 matched therewith. The magnet 91 can enhance the cooperation between the transmission block 10 and the transmission slot 9, making the transmission process more stable.

[0040] like Figure 6-Figure 8As shown, in this embodiment, the device body 1 includes a frame 11, a first drive mechanism 12, a second drive mechanism 13 and a storage structure 14. The first drive mechanism 12 is slidably arranged on the frame 11, and is connected to the connecting inner tube 7 of the extension rod 4, and is used to drive the extension rod 4 to rotate, thereby driving the drilling rod 2 to rotate. The second drive mechanism 13 is arranged on the frame 11, and is connected to the first drive mechanism 12, and is used to drive the first drive mechanism 12 to move up and down, and is used to achieve downward drilling. The storage structure 14 is fixed on the frame 11, and is used to store the drilling rod 2 or the extension rod 4.

[0041] The frame 11, as the supporting structure of the entire equipment body 1, has sufficient strength and rigidity to ensure the stability of the equipment during the drilling process. At the same time, the connection between the first drive mechanism 12 and the second drive mechanism 13 and the frame 11 ensures the stability and accuracy of the transmission. Through the powerful power output of the first drive mechanism 12, it can be ensured that the drilling rod 2 can rotate smoothly and drill into the formation. The up and down movement of the second drive mechanism 13 also facilitates the access and disassembly of the drilling rod 2 and the extension rod 4. The existence of the storage structure 14 not only saves space, but also makes the storage and access of the drilling rod 2 and the extension rod 4 more convenient. During the drilling process, the drilling rod 2 and the extension rod 4 can be quickly replaced or added to improve the drilling efficiency.

[0042] Specifically, the frame 11 includes a stand 111, a base 112, a push handle 113 and wheels 114. The top of the stand 111 is fixedly connected to the push handle 113, the bottom is fixedly connected to one end of the base 112, and the wheel 114 is fixed to the connection between the stand 111 and the base 112. Pressing down the push handle 113 can pry up the end of the base 112 away from the stand 111 with the wheel 114 as a fulcrum. First, by fixing the wheels 114 at the connection between the stand 111 and the base 112, the entire device can be easily moved on the ground without consuming a lot of manpower for carrying, which greatly improves work efficiency. Whether it is adjusting the position at the exploration site or transferring between different exploration points, fast and convenient movement can be achieved. Secondly, by pressing down the push handle 113, the wheel 114 can be used as a fulcrum to pry up the end of the base frame 112 away from the stand 111, so that when the device needs to be lifted or adjusted, the operator only needs to apply a small amount of force, which greatly reduces the difficulty of operation and physical exertion. This labor-saving design is very necessary for operators who perform exploration operations for a long time.

[0043] Specifically, the first driving mechanism 12 includes a first motor 121 and a mounting plate 122, and the second driving mechanism 13 includes a second motor 131, a screw rod 132, a guide rod 133 and a slider 134. The second motor 131 is fixed to the top of the stand 111 and is in transmission connection with the screw rod 132. The screw rod 132 is rotatably connected to the stand 111. Both ends of the guide rod 133 are fixedly connected to the stand 111 and are arranged parallel to the screw rod 132. The slider 134 is threadedly connected to the screw rod 132 and is slidably connected to the guide rod 133. The first motor 121 is fixedly installed on the mounting plate 122 and is fixedly connected to the slider 134. The output end of the first motor 121 is fixedly connected to the drilling rod 2 or the extension rod 4.

[0044] The first driving mechanism 12 fixedly connects the first motor 121 with the slider 134 through the mounting plate 122, and the slider 134 is threadedly connected to the screw rod 132. The entire driving mechanism occupies a smaller space on the stand 111, and the structure is more compact. The second motor 131 is connected to the slider 134 through the screw rod 132, the screw rod 132 is rotatably connected to the stand 111, and the guide rod 133 is arranged parallel to the screw rod 132, and the slider 134 is slidably connected to the guide rod 133. This ensures the stable movement of the slider 134 on the screw rod 132, avoiding shaking or deviation during the transmission process. At the same time, the first motor 121 can stably connect and drive the extension rod 4 to rotate through the connecting outer tube 8 fixedly connected to the output end, thereby improving the stability and accuracy of the transmission. Due to the transmission connection between the second motor 131 and the screw rod 132, and the cooperation between the slider 134, the screw rod 132 and the guide rod 133, the mounting plate 122 (and the first motor 121 fixed thereon and the connecting outer tube 8) can move up and down along the screw rod 132. The operator can flexibly adjust the drilling depth according to actual needs, and realize precise operation control. At the same time, the first motor 121 can also adjust the rotation speed and direction according to the drilling requirements.

[0045] Specifically, the storage structure 14 includes a plurality of beams 141 horizontally fixed on the stand 111. Along the extension direction of the beams 141, a plurality of arc seats 142 are arranged in an array on each beam 141, and the shape of the arc seats 142 is adapted to the shapes of the drilling rod 2 and the extension rod 4. The opening of the arc seat 142 is provided with an openable cover plate 143, and the inner side of the cover plate 143 is provided with an anti-slip pad.

[0046] The storage structure 14 makes full use of the equipment space through multiple beams 141 horizontally fixed on the frame 111 and multiple arc seats 142 arranged in an array along the extension direction of the beams 141, so as to achieve neat and orderly placement of the drilling rods 2 and the extension rods 4, avoid clutter and improve storage efficiency.

[0047] In this embodiment, the blocking piece 21 is triangular in shape, and a plurality of blocking pieces 21 are connected to the opening at the bottom of the drilling rod 2 through a spring hinge, and all the blocking pieces 21 form a conical structure.

[0048] The specific working principle of the geological exploration drilling equipment in the above embodiment is as follows:

[0049] First, by the cooperation of the push handle 113 and the wheel 114, the stand 111 is kept at a certain tilt angle, and then the drilling equipment body 1 is pushed to move. When the equipment is moved to the use position, the bolts on the cover plate 143 are loosened, the drilling rod 2 and the extension rod 4 are removed, and the drilling rod 2 is fixedly connected to the first motor 121 through the cooperation of the connecting inner tube 7 and the connecting outer tube 8. At this time, the first motor 121 and the second motor 131 are started, and the drilling rod 2 is driven to rotate by the first motor 121, and the screw rod 132 is driven to rotate by the second motor 131, and then the slider 134 is driven to slide down along the guide rod 133, driving the mounting plate 122 to descend, and then the drilling rod 2 is rotated and inserted into the ground for drilling. When the drilling rod 2 completely enters the ground, the first motor 121 is reset, the extension rod 4 is removed from the storage structure 14, and the bottom of the extension rod 4 is connected to the drilling rod 2, and the top of the extension rod 4 is connected to the output end of the first motor 121. During the connection process, ensure that the hexagonal transmission block 10 is inserted into the hexagonal transmission slot, and the magnet 91 is fixed by magnetic attraction. Then continue drilling downward. Repeat the above operation until the sampling position is drilled. At this time, use a hexagonal tool to slowly rotate the hexagonal plug on the top of the uppermost extension rod 4, and drive the threaded rod to rotate through the mutual cooperation of the connecting shaft, so that the sampling barrel 3 is pushed out of the baffle 21 of the drilling rod 2, and the drilling sample enters the sampling barrel 3 and is collected.

[0050] It should be noted that all directional indications in this embodiment (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, in the present embodiment, the descriptions involving "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In this embodiment, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0053] It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but the present invention is not limited to the above specific implementation methods. Any changes or modifications made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling device for geological exploration, characterized in that: include: Device body (1); The drilling rod (2) has a hollow structure inside and a plurality of baffles (21) arranged around the bottom. The baffles (21) are connected to the drilling rod (2) via elastic hinges and can rotate synchronously with the drilling rod (2) to drill into the formation. A sampling barrel (3) is slidably arranged inside the drilling rod (2) up and down, the top of which is connected to the drilling rod (2) via a first transmission mechanism (5), the bottom of which is open and has an inclined surface, and is used to push open the baffle (21) during drilling and to take samples from the formation; at least one extension rod (4), each of the extension rods (4) being provided with a second transmission mechanism (6); A plurality of the extension rods (4) are arranged end to end in sequence between the equipment body (1) and the drilling rod (2), and the second transmission mechanism (6) inside each of the extension rods (4) is sequentially transmission-connected, and the second transmission mechanism (6) in the endmost extension rod (4) is transmission-connected to the first transmission mechanism (5).

2. The drilling equipment for geological exploration according to claim 1, characterized in that: The top of the extension rod (4) is provided with a connecting inner tube (7), and the bottom is provided with a connecting outer tube (8); The top of the drilling rod (2) is provided with the connecting inner tube (7). The drilling rod (2) and the extension rod (4), and the extension rods (4) and the extension rods (4) are fixedly connected by plugging and fitting the connecting outer tube (8) and the connecting inner tube (7).

3. The drilling equipment for geological exploration according to claim 2, characterized in that: The connecting outer tube (8) is provided with a first connecting hole; Corresponding to the first connecting hole, a second connecting hole is provided on the connecting inner tube (7), and the first connecting hole and the second connecting hole are fixedly connected via a connecting piece.

4. The drilling equipment for geological exploration according to claim 2, characterized in that: The first transmission mechanism (5) comprises a threaded transmission rod (51) rotatably connected to the sampling barrel (3), and the top of the threaded transmission rod (51) is provided with a transmission notch (9); The second transmission mechanism (6) comprises a transmission shaft (61) and a support plate (62) arranged inside the extension rod (4); the transmission shaft (61) has a transmission slot (9) at the top and a transmission block (10) matched with the transmission slot (9) at the bottom; the support plate (62) is fixedly connected to the extension rod (4) and is provided with a limiting hole for limiting the radial movement of the transmission shaft (61).

5. The drilling equipment for geological exploration according to claim 4, characterized in that: A magnet (91) is fixed at the bottom of the transmission slot (9) for adsorbing the transmission block (10) matched therewith.

6. The drilling equipment for geological exploration according to claim 1, characterized in that: The equipment body (1) comprises a frame (11), a first driving mechanism (12), a second driving mechanism (13) and a storage structure (14); The first driving mechanism (12) is slidably disposed on the frame (11) up and down, and is connected to the connecting inner tube (7) of the extension rod (4), and is used to drive the extension rod (4) to rotate, thereby driving the drilling rod (2) to rotate; The second driving mechanism (13) is arranged on the frame (11) and connected to the first driving mechanism (12), and is used to drive the first driving mechanism (12) to move up and down, so as to realize downward drilling; The storage structure (14) is fixed on the frame (11) and is used to store the drilling rod (2) or the extension rod (4).

7. The drilling equipment for geological exploration according to claim 6, characterized in that: The frame (11) comprises a stand (111), a base frame (112), a push handle (113) and wheels (114); The top of the stand (111) is fixedly connected to the push handle (113), and the bottom is fixedly connected to one end of the base frame (112), and the wheel (114) is fixed at the connection between the stand (111) and the base frame (112); Pressing down the push handle (113) can pry up the end of the base frame (112) away from the stand (111) with the wheel (114) as a fulcrum.

8. The drilling equipment for geological exploration according to claim 7, characterized in that: The first driving mechanism (12) comprises a first motor (121) and a mounting plate (122), and the second driving mechanism (13) comprises a second motor (131), a screw rod (132), a guide rod (133) and a slider (134); The second motor (131) is fixed to the top of the stand (111) and is in transmission connection with the screw rod (132); the screw rod (132) is rotatably connected to the stand (111); both ends of the guide rod (133) are fixedly connected to the stand (111) and are arranged parallel to the screw rod (132); the slider (134) is in threaded transmission connection with the screw rod (132) and is slidably connected to the guide rod (133); The first motor (121) is fixedly mounted on the mounting plate (122) and is fixedly connected to the slider (134); the output end of the first motor (121) is fixedly connected to the drilling rod (2) or the extension rod (4).

9. The drilling equipment for geological exploration according to claim 7, characterized in that: The storage structure (14) comprises a plurality of crossbeams (141) horizontally fixed on the stand (111); Along the extension direction of the cross beam (141), a plurality of arc-shaped seats (142) are arranged in an array on each cross beam (141), and the shape of the arc-shaped seats (142) is adapted to the shape of the drilling rod (2) and the extension rod (4); The opening of the arc-shaped seat (142) is provided with a cover plate (143) that can be opened and closed, and an anti-slip pad is provided on the inner side of the cover plate (143).

10. The drilling equipment for geological exploration according to claim 1, characterized in that: The baffle (21) is triangular in shape, and a plurality of the baffles (21) are connected to the opening at the bottom of the drilling rod (2) via a spring hinge, and all the baffles (21) form a conical structure.

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