A drilling device for geological prospecting

Abstract

The present invention belongs to the field of drilling equipment, and discloses a drilling device for geological prospecting, including a chassis, a tripod stand fixed to the top of the chassis, a triangular platform fixed to one end inside the triangular stand, a drill shaft body arranged at the center position inside the triangular platform, a side-mounted gear reduction drive unit for driving the drill shaft body to rotate and operate the drill shaft body for Z-axis sliding is installed at the bottom end of the triangular platform; a bracket, and the bracket is arranged at the other end inside the triangular stand. The design of the Z-axis screw-type drilling feed assembly of the present invention can flexibly adjust the drilling depth without changing the equipment or requiring lifting equipment, which solves the limitations of traditional drilling equipment in depth and efficiency, can obtain more geological information, and provide a more reliable foundation for resource development. The drill rod body can also be easily extended by connecting it through the shaft rod sliding structure, thereby shortening the drilling cycle and reducing construction costs.

Description

Technical Field

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

[0002] In geological prospecting, drilling equipment is a key tool, mainly used to detect and evaluate the distribution, composition and reserves of underground mineral deposits. Its role is not limited to obtaining underground rock and mineral samples, but also includes analyzing the structure of the strata to provide a scientific basis for the exploration and development of mineral resources. The structure of the drilling device consists of several main components. First of all, the power system is its core part, usually powered by an electric motor or internal combustion engine to drive the drill bit for deep drilling. The drill rod is a key component connecting the power system and the drill bit, responsible for transmitting power and torque. Its material and strength design can withstand the huge pressure during drilling. The drill bit is the part that directly contacts the stratum, and its design affects the drilling efficiency. Common types include roller cutter bits and diamond drill bits. For example, a geological prospecting drilling device disclosed in the authorization announcement number CN118029928B includes a platform, a plurality of supporting legs are provided at the edge of the platform, a drilling unit is provided on the platform, the drilling unit is used to drill the soil on the ground, a material taking component is provided on the drilling unit, and a material protection component is also provided on the material taking component, the material protection component is used to protect the sample on the material taking component, which is loaded on a lifting transport vehicle with the vehicle and can be flexibly transferred to various sampling points, and at the same time cooperates with the lifting equipment on the vehicle-mounted lifting transport vehicle to flexibly realize the placement at the traction point and the lifting point. The platform is installed in the carriage; the supporting legs support the platform above the sampling point, and then the drilling unit is driven to collect the soil layer at the sampling point in the drilling unit, and then the sample to be tested later is taken out from the soil layer collected in the drilling unit through the material taking component. However, the above technical scheme mainly relies on the hydraulic cylinder to drive the drilling unit downward during implementation, and is used in shallow drilling and prospecting operations. Due to the thrust and stroke limitations of the hydraulic cylinder, the drilling depth is relatively shallow. In the scenario of temporary drilling sampling and lack of lifting equipment, the information provided by shallow drilling is limited to the surface or near-surface ore bodies, and cannot fully reflect the distribution of underground resources. This makes the device seem powerless when searching for deep mineral deposits. Summary of the invention

[0003] The object of the present invention is to provide a drilling device for geological prospecting. A Z-axis screw drilling feed assembly for driving a bracket, a lever assembly, a drill rod body and a drill shaft body to move downward is installed on the inner wall of a tripod stand. When a side-mounted gear reduction drive unit drives the drill rod body and the drill shaft body to rotate, the Z-axis screw drilling feed assembly slowly drives the two to move downward for drilling. After the drill rod body and the drill shaft body are drilled into the geological structure, another drill rod body is taken out, and the two drill rod bodies are connected by an axial rod sliding structure to achieve the purpose of extending the length of the drill rod body and the drilling depth. Then the Z-axis screw drilling feed assembly drives the lever assembly to move upward and re-clamp the drill rod body, so that the device continues to drill deeper to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a drilling device for geological prospecting, comprising:

[0005] A chassis, a tripod stand is fixed on the top of the chassis, a triangular platform is fixed on one end of the triangular stand, a drill shaft body is arranged at the center of the triangular platform, and a side-mounted gear reduction drive unit for driving the drill shaft body to rotate and operate the drill shaft body to slide in the Z axis is installed at the bottom of the triangular platform;

[0006] A bracket, the bracket is arranged at the other end inside the tripod stand, a Z-axis screw-type drilling feed assembly for driving the bracket to rise and fall is installed on the inner wall of one side of the tripod stand, a buckle rod assembly is installed at the bottom end of the bracket, a drill rod body is arranged at the top of the drill shaft body, the outer peripheral surfaces of the drill rod body and the drill shaft body are both provided with external splines, a shaft rod sliding structure is arranged between the opposite ends of the drill rod body and the drill shaft body, the head and tail ends of the two drill rod bodies are connected and extended by the shaft rod sliding structure, and both ends of the surface of the drill rod body are provided with annular grooves for connecting the buckle rod assembly;

[0007] A motor controller is installed on an outer wall of one side of the triangular table, and an output end of the triangular table is electrically connected to an input end of a Z-axis screw-type drilling feed assembly and a side-mounted gear reduction drive unit.

[0008] Preferably, the buckle rod assembly includes an inverted U-shaped platform fixed at the bottom end of the bracket, steel columns fixed at the front and rear sides of the inverted U-shaped platform, block seats fixed at both ends of the steel columns, and a cylinder installed on the outer walls of the opposite sides of the two block seats, a right-angle platform is fixed to the top end of the piston rod of the cylinder, an axle pin is installed on the outer wall of the right-angle platform on one side close to the central axis of the bracket, and the axle pin and the annular groove are plugged into each other.

[0009] Preferably, both sides of the surface of the right-angle platform are provided with completely penetrating through grooves, and the right-angle platform is slidably matched with the steel column through the through grooves.

[0010] Preferably, the Z-axis screw-type drilling feed assembly includes a screw linear module vertically arranged on the inner wall of one side of the tripod frame, a double-column sliding sleeve installed at the movable end of the screw linear module, and an inclined arm hingedly installed on the outer walls of both sides of the double-column sliding sleeve, and the end of the inclined arm away from the double-column sliding sleeve is hinged to the top of the bracket. The Z-axis screw-type drilling feed assembly also includes a stepper motor installed at the top corner position of the tripod frame, the stepper motor is used to drive the screw linear module, and the stepper motor and the screw linear module are used to drive the double-column sliding sleeve, the inverted U-shaped table, and the steel column to move in the Z-axis direction.

[0011] Preferably, a column is installed on the outer wall of the tripod stand, and the double-column sliding sleeve and the column are slidably matched.

[0012] Preferably, the side-mounted gear reduction drive unit includes a support plate fixed on the top of the triangular table, a tapered bushing rotatably mounted on the bottom of the support plate, an internal spline annular flange integrally formed at the edge of the bottom end of the tapered bushing, and a reduction motor mounted on one side of the bottom end of the support plate, and the output end of the reduction motor is equipped with a gear transmission structure for driving the tapered bushing to rotate.

[0013] Preferably, the gear transmission structure includes a driven shaft rotatably mounted on one side of the bottom end of the support plate, a driving gear fixed on the top and bottom ends of the driven shaft, and an inner gear ring fixed on the inner wall of one side of the tapered sleeve, the inner gear ring and one of the driving gears are meshed with each other, and a toothed disc is installed at the output end of the reduction motor, and the toothed disc and the other driving gear are meshed with each other.

[0014] Preferably, the bracket is made of stainless steel, and an axial hole concentric with the drill rod body and the drill shaft body is provided at the center position inside the bracket. The drill rod body and the drill shaft body cooperate with each other through external spline and internal spline annular flanges.

[0015] Preferably, the shaft rod sliding structure includes a concave groove fixed at the top end of the drill rod body, a lower column head fixed at the bottom end of the drill rod body, and a concave groove arranged inside the upper column head, and the bottom end of the lower column head is provided with an I-shaped seat that slides with the concave groove.

[0016] Preferably, another upper column head that slidably cooperates with the lower column head is fixed to the top end of the drill shaft body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the drilling device for geological prospecting is provided with a Z-axis screw-type drilling feed assembly, a buckle rod assembly, an axle rod sliding structure and other structures that cooperate with each other. The design of the Z-axis screw-type drilling feed assembly can flexibly adjust the drilling depth without replacing the equipment or requiring lifting equipment, which solves the limitations of traditional drilling equipment in depth and efficiency, can obtain more geological information, and provide a more reliable foundation for resource development. The drill rod body can also be easily extended by connecting it through the axle rod sliding structure, thereby shortening the drilling cycle and reducing construction costs. Compared with traditional drilling methods, the side-mounted gear reduction drive unit and the Z-axis screw design also make the drilling process more efficient, and the feed speed and pressure are adjusted according to different geological conditions. The increase in drilling speed not only helps to speed up the exploration progress, but also can complete more drilling tasks within the same time period. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0019] Figure 2 It is a side structural schematic diagram of the present invention.

[0020] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0021] Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the buckle rod assembly of the second embodiment of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the Z-axis screw-type drilling feed assembly according to the second embodiment of the present invention.

[0024] Figure 7 The three-dimensional structure diagram of the side-mounted gear reduction drive unit of the third embodiment of the present invention is shown in FIG. Figure 1 .

[0025] Figure 8 The three-dimensional structure diagram of the side-mounted gear reduction drive unit of the third embodiment of the present invention is shown in FIG. Figure 2 .

[0026] Fig. 9 This is a schematic diagram of the three-dimensional structure of the drill pipe body according to the third embodiment of the present invention.

[0027] In the figure: 1, chassis; 2, tripod stand; 3, tripod table; 4, motor controller; 5, bracket; 501, shaft hole; 6, Z-axis screw drilling feed assembly; 601, stepping motor; 602, screw linear module; 603, double-column sliding sleeve; 604, inclined arm; 7, buckle rod assembly; 701, inverted U-shaped table; 702, steel column; 703, cylinder; 704, right-angle table; 705, shaft pin; 706, stopper; 8, drill rod body; 9 , drill shaft body; 10, side-mounted gear reduction drive unit; 1001, support plate; 1002, tapered bushing; 1003, internal spline annular flange; 1004, internal gear ring; 1005, driven shaft; 1006, reduction motor; 1007, gear transmission structure; 11, external spline; 12, annular groove; 13, shaft sliding structure; 1301, upper column head; 1302, concave groove; 1303, lower column head; 1304, I-shaped seat. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1, by Figures 1 to 4 The present invention includes a chassis 1, a tripod stand 2 is fixed to the top of the chassis 1, a tripod platform 3 is fixed to one end inside the tripod stand 2, and a drill shaft body 9 is arranged at the center position inside the tripod platform 3. The chassis 1 is the basic structure of the entire drilling device and provides stable support. Its structural design makes the force distribution during the drilling process uniform, effectively reducing the risk of damage to the equipment due to vibration.

[0030] A side-mounted gear reduction drive unit 10 is installed at the bottom end of the triangular table 3 for driving the drill spindle body 9 to rotate and operate the drill spindle body 9 to slide in the Z axis.

[0031] The bracket 5 is arranged at the other end inside the tripod frame 2. A Z-axis screw-type drilling feed assembly 6 for driving the bracket 5 to rise and fall is installed on the inner wall of one side of the tripod frame 2. A buckle rod assembly 7 is installed at the bottom end of the bracket 5. A drill rod body 8 is arranged at the top of the drill shaft body 9. The outer peripheral surfaces of the drill rod body 8 and the drill shaft body 9 are both provided with external splines 11. An axial rod sliding structure 13 is arranged between the opposite ends of the drill rod body 8 and the drill shaft body 9. The head and tail ends of the two drill rod bodies 8 are connected and extended by the axial rod sliding structure 13. Both ends of the surface of the drill rod body 8 are provided with annular cutting grooves 12 for connecting the buckle rod assembly 7.

[0032] The motor controller 4 is installed on the outer wall of one side of the tripod 3. The output end of the tripod 3 is electrically connected to the Z-axis screw-type drilling feed assembly 6 and the input end of the side-mounted gear reduction drive unit 10. The motor controller 4 is responsible for the precise control of the entire device, including the start, stop, speed adjustment, etc. of the drive unit. It transmits instructions to the side-mounted gear reduction drive unit 10 to ensure that it operates according to the preset parameters. The coordination between the motor controller 4 and the Z-axis screw-type drilling feed assembly 6 is an important link to ensure the smooth progress of the drilling operation.

[0033] The Z-axis screw-type drilling feed assembly 6 can achieve precise linear movement through the rotation of the screw, so that the drill rod body 8 and the drill shaft body 9 can be moved downward according to the required depth, thereby ensuring the effectiveness of the drilling process. The side-mounted gear reduction drive unit 10 can reduce the motor speed and increase the torque through gear reduction, thereby ensuring the stable operation of the drill rod body 8 under high load conditions; the shaft sliding structure 13 allows the drill rod body 8 to be conveniently extended when necessary to achieve deeper drilling.

[0034] Embodiment 2, based on embodiment 1, Figure 5 and Figure 6 It is given that the buckle rod assembly 7 includes an inverted U-shaped platform 701 fixed to the bottom end of the bracket 5, a steel column 702 fixed to the front and rear sides of the inverted U-shaped platform 701, a stopper 706 fixed to the two ends of the steel column 702, and a cylinder 703 installed on the outer walls of the opposite sides of the two stoppers 706. A right-angle platform 704 is fixed to the top of the piston rod of the cylinder 703. An axle pin 705 is installed on the outer wall of the right-angle platform 704 close to the central axis of the bracket 5. The axle pin 705 and the annular groove 12 are plugged into each other, and the right-angle platform 704 is fixed to the top of the piston rod of the cylinder 703. Both sides of the surface of 04 are provided with completely penetrating through grooves, and the right-angle platform 704 is slidably matched with the steel column 702 through the through grooves. When the buckle rod assembly 7 is used to actively clamp and limit the drill rod body 8, the staff turns on the cylinder 703 to work, and the cylinder 703 drives the right-angle platform 704 and the shaft pin 705 to approach the vertical center line of the drill rod body 8 until the end of the shaft pin 705 is pushed into the annular groove 12. At this time, the ends of the two shaft pins 705 are both located in the annular groove 12.

[0035] On the one hand, the setting of the annular groove 12 and the shaft pin 705 can enable the drill rod body 8 and the drill shaft body 9 to rotate and drill normally under the drive of the side-mounted gear reduction drive unit 10. On the other hand, the shaft pin 705 and the annular groove 12 can also enable the Z-axis screw drilling feed assembly 6 and the lever assembly 7 to normally drive the drill rod body 8 and the drill shaft body 9 to move downward to achieve the purpose of deep drilling. It ensures the firm connection between the lever assembly 7 and the drill rod body 8 to prevent loosening or falling off during the drilling process, and avoids drilling interruptions or damage to equipment due to poor connection.

[0036] The Z-axis screw-type drilling feed assembly 6 includes a screw linear module 602 vertically arranged on the inner wall of one side of the tripod frame 2, a double-column sleeve 603 installed at the movable end of the screw linear module 602, and an inclined arm 604 hingedly installed on the outer walls of both sides of the double-column sleeve 603. The end of the inclined arm 604 away from the double-column sleeve 603 is hinged to the top of the bracket 5. The Z-axis screw-type drilling feed assembly 6 also includes a stepper motor 601 installed at the top corner position of the tripod frame 2. The stepper motor 601 is used to drive the screw linear module 602. The stepper motor 601 and the screw linear module 602 are used to drive the double-column sleeve 603, the inverted U-shaped table 701, and the steel column 702 to move in the Z-axis direction. A column is installed on the outer wall of the tripod frame 2, and the double-column sleeve 603 and the column are slidably matched.

[0037] When the Z-axis screw drilling feed assembly 6 is working, the rotational power of the stepper motor 601 is transmitted to the screw linear module 602, and the screw linear module 602 drives the double-column sliding sleeve 603 to move downward through the nut pair, and the double-column sliding sleeve 603 pulls the bracket 5, the buckle rod assembly 7, the drill rod body 8, and the drill shaft body 9 to move up and down through the inclined arm 604. Through the rotation of the screw, the assembly can achieve high-precision linear movement, so that the drill rod body 8 can move downward according to the set depth. When encountering different types of geological materials, the assembly can quickly adapt and adjust the feed speed to ensure the continuity of the drilling operation; and the parameters of the Z-axis screw drilling feed assembly 6 can be easily adjusted through the motor controller 4 without manual adjustment, thereby improving the convenience and safety of operation.

[0038] Embodiment 3, based on embodiment 2, Figure 7 , Figure 8 and Fig. 9The side-mounted gear reduction drive unit 10 includes a support plate 1001 fixed to the top of the triangular table 3, a tapered shaft sleeve 1002 rotatably mounted at the bottom of the support plate 1001, an internal spline annular flange 1003 integrally formed at the bottom edge of the tapered shaft sleeve 1002, and a reduction motor 1006 mounted on one side of the bottom end of the support plate 1001. The output end of the reduction motor 1006 is equipped with a gear transmission structure 1007 for driving the tapered shaft sleeve 1002 to rotate. The gear transmission structure 1007 includes a driven gear 1007 rotatably mounted on one side of the bottom end of the support plate 1001. The shaft 1005, the driving gears fixed at the top and bottom ends of the driven shaft 1005, and the inner gear ring 1004 fixed on the inner wall of one side of the tapered sleeve 1002, the inner gear ring 1004 and one of the driving gears are meshed with each other, and a gear plate is installed at the output end of the reduction motor 1006, and the gear plate and the other driving gear are meshed with each other. The reduction motor 1006 transmits the rotational power to the driven shaft 1005 through the gear transmission structure 1007, and the driven shaft 1005 uses the driving gear to drive the inner gear ring 1004, the tapered sleeve 1002, and the inner spline annular flange 1003 to rotate.

[0039] The bracket 5 is made of stainless steel, and an axial hole 501 concentric with the drill pipe body 8 and the drill shaft body 9 is arranged at the central position inside the bracket 5. The setting of the axial hole 501 allows the drill pipe body 8 to enter the bracket 5, so as to facilitate the connection of the head and tail ends of the two drill pipe bodies 8. The drill pipe body 8 and the drill shaft body 9 cooperate with each other through the external spline 11 and the internal spline annular flange 1003. Since the drill shaft body 9 and the drill pipe body 8 transmit power to the internal spline annular flange 1003 through the external spline 11, the internal spline annular flange 1003, the drill pipe body 8, and the drill shaft body 9 maintain a vertical sliding connection state, and can still rotate on their own. The gear transmission structure 1007 converts the high-speed rotation of the reduction motor 1006 into a low-speed, high-torque output, so that the drill pipe body 8 and the drill shaft body 9 can operate stably under high load conditions and enhance the penetration ability of drilling.

[0040] The shaft rod sliding structure 13 includes a concave groove 1302 fixed at the top of the drill rod body 8, a lower column head 1303 fixed at the bottom end of the drill rod body 8, and a concave groove 1302 arranged inside the upper column head 1301. The bottom end of the lower column head 1303 is provided with an I-shaped seat 1304 that slides with the concave groove 1302. The top of the drill shaft body 9 is fixed with another upper column head 1301 that slides with the lower column head 1303. When the head and tail ends of the two drill rod bodies 8 or the head and tail ends of the drill rod body 8 and the drill shaft body 9 are connected, the lower column head 1303 and the upper column head 1301 are connected by the I-shaped seat 1304 and the concave groove 1302, which allows the drill rod to be flexibly extended when needed. The operator can quickly connect a new drill rod without disassembling the entire device. In addition, due to the good design of the concave groove 1302 and the I-shaped seat 1304, safety can be ensured during connection and disconnection, and accidental falling off will not occur.

[0041] When the embodiment of the present application is used, first, before starting the drilling operation, the operator checks the stability of the chassis 1 and the tripod 2 and the connection status of each component to ensure that the motor controller 4 and each driving component communicate normally. Then, the operator turns on the side-mounted gear reduction drive unit 10, the Z-axis screw-type drilling feed assembly 6, and the lever assembly 7 through the motor controller 4 to work. The lever assembly 7 actively connects with a circle of annular grooves 12 on the outer peripheral surface of the drill rod body 8 to ensure that the lever assembly 7 and the drill rod body 8 are stably connected, and the side-mounted gear reduction drive unit 10 starts to operate and drives the drill rod body 8 to move. The drill body 8 and the drill shaft body 9 rotate. During this process, the Z-axis screw-type drilling feed assembly 6 starts to drive the bracket 5, the buckle rod assembly 7, the drill rod body 8, and the drill shaft body 9 to move downward synchronously, and gradually pushes the drill rod body 8 and the drill shaft body 9 into the formation. The operator monitors the drilling depth and speed in real time on site to ensure the smooth progress of the drilling process. When the drill rod body 8 and the drill shaft body 9 drill into the geological structure, the precise control mechanism of the Z-axis screw-type drilling feed assembly 6 will allow the operator to adjust the feed speed and pressure according to geological feedback. If a harder rock formation is encountered, the Z-axis screw-type drilling feed assembly 6 can automatically increase the feed. The force is applied to ensure the continuity and stability of drilling. After the drilling reaches a certain depth, the downward depth of the Z-axis screw-type drilling feed assembly 6, the drill rod body 8, and the drill shaft body 9 reaches the limit position. At this time, the staff stops the device and takes out another drill rod body 8, so that the head and tail ends of the two adjacent drill rod bodies 8 are connected through the shaft rod sliding structure 13, so as to achieve the purpose of extending the drilling length of the drill rod body 8 and ensure that the two drill rods are tightly combined. Since the bracket 5 and the buckle rod assembly 7 are in the downward limit position at this time, the staff starts the Z-axis screw-type drilling feed assembly 6 again through the motor controller 4. , the lever assembly 7 works, the lever assembly 7 first actively releases the drill rod body 8, and the Z-axis screw drilling feed assembly 6 drives the bracket 5 and the lever assembly 7 to move upward, until the bracket 5 and the lever assembly 7 move to the annular groove 12 of the newly assembled drill rod body 8, and then the lever assembly 7 moves again and positions the drill rod body 8 through the annular groove 12. When the connection is completed, the Z-axis screw drilling feed assembly 6 drives the lever assembly 7, the drill rod body 8, and the drill shaft body 9 to move downward again to achieve deeper drilling operations. After completing the predetermined drilling depth, the operator will stop drilling and perform equipment maintenance and inspection as needed.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling device for geological prospecting, characterized in that: include: A chassis (1), a tripod stand (2) being fixed at the top of the chassis (1), a triangular platform (3) being fixed at one end inside the tripod stand (2), a drill shaft body (9) being arranged at the center position inside the triangular platform (3), and a side-mounted gear reduction drive unit (10) being installed at the bottom end of the triangular platform (3) for driving the drill shaft body (9) to rotate and operating the drill shaft body (9) to slide along the Z axis; A support (5), wherein the support (5) is arranged at the other end inside the tripod stand (2), a Z-axis screw-type drilling feed assembly (6) for driving the support (5) to rise and fall is installed on the inner wall of one side of the tripod stand (2), a lever assembly (7) is installed at the bottom end of the support (5), a drill rod body (8) is arranged at the top end of the drill shaft body (9), the outer peripheral surfaces of the drill rod body (8) and the drill shaft body (9) are both provided with external splines (11), a shaft rod sliding structure (13) is arranged between the opposite ends of the drill rod body (8) and the drill shaft body (9), the head and tail ends of the two drill rod bodies (8) are connected and extended by the shaft rod sliding structure (13), and both ends of the surface of the drill rod body (8) are provided with annular grooves (12) for connecting the lever assembly (7); A motor controller (4), the motor controller (4) being mounted on an outer wall of one side of the triangular table (3), the output end of the triangular table (3) being electrically connected to the input end of the Z-axis screw-type drilling feed assembly (6) and the side-mounted gear reduction drive unit (10); The buckle rod assembly (7) comprises an inverted U-shaped platform (701) fixed to the bottom end of the bracket (5), a steel column (702) fixed to the front and rear sides of the inverted U-shaped platform (701), a stopper (706) fixed to the two ends of the steel column (702), and a cylinder (703) installed on the outer walls of the opposite sides of the two stoppers (706), a right-angle platform (704) is fixed to the top end of the piston rod of the cylinder (703), an axle pin (705) is installed on the outer wall of the right-angle platform (704) on the side close to the central axis of the bracket (5), and the axle pin (705) and the annular groove (12) are plugged into each other; The side-mounted gear reduction drive unit (10) comprises a support plate (1001) fixed to the top of the triangular table (3), a tapered shaft sleeve (1002) rotatably mounted on the bottom of the support plate (1001), an internal spline annular flange (1003) integrally formed at the bottom edge of the tapered shaft sleeve (1002), and a reduction motor (1006) mounted on one side of the bottom of the support plate (1001), wherein the output end of the reduction motor (1006) is mounted with a gear transmission structure (1007) for driving the tapered shaft sleeve (1002) to rotate; The drill rod body (8) and the drill shaft body (9) cooperate with each other via an external spline (11) and an internal spline annular flange (1003); The shaft rod sliding structure (13) comprises a concave groove (1302) fixed to the top end of the drill rod body (8), a lower column head (1303) fixed to the bottom end of the drill rod body (8), and a concave groove (1302) arranged inside the upper column head (1301); the bottom end of the lower column head (1303) is provided with an I-shaped seat (1304) that slidably cooperates with the concave groove (1302).

2. A drilling device for geological prospecting according to claim 1, characterized in that: Both sides of the surface of the right-angle platform (704) are provided with completely penetrating through grooves, and the right-angle platform (704) is slidably matched with the steel column (702) through the through grooves.

3. A drilling device for geological prospecting according to claim 1, characterized in that: The Z-axis screw-type drilling feed assembly (6) comprises a screw linear module (602) vertically arranged on the inner wall of one side of the tripod stand (2), a double-column sliding sleeve (603) installed at the movable end of the screw linear module (602), and an inclined arm (604) hingedly installed on the outer walls of both sides of the double-column sliding sleeve (603), and the end of the inclined arm (604) away from the double-column sliding sleeve (603) is hingedly connected to the top of the bracket (5). The Z-axis screw-type drilling feed assembly (6) also comprises a stepping motor (601) installed at the top corner position of the tripod stand (2), the stepping motor (601) is used to drive the screw linear module (602), and the stepping motor (601) and the screw linear module (602) are used to drive the double-column sliding sleeve (603), the inverted U-shaped platform (701), and the steel column (702) to move in the Z-axis direction.

4. A drilling device for geological prospecting according to claim 3, characterized in that: A column is installed on the outer wall of the triangular stand (2), and the double-column sliding sleeve (603) is slidably matched with the column.

5. A drilling device for geological prospecting according to claim 1, characterized in that: The gear transmission structure (1007) comprises a driven shaft (1005) rotatably mounted on one side of the bottom end of the support plate (1001), driving gears fixed to the top and bottom ends of the driven shaft (1005), and an inner gear ring (1004) fixed to the inner wall of one side of the tapered sleeve (1002), wherein the inner gear ring (1004) and one of the driving gears are meshed with each other, and a toothed disc is mounted on the output end of the reduction motor (1006), wherein the toothed disc and the other driving gear are meshed with each other.

6. A drilling device for geological prospecting according to claim 5, characterized in that: The bracket (5) is made of a stainless steel component, and an axial hole (501) which is concentric with the drill rod body (8) and the drill shaft body (9) is provided at the center position inside the bracket (5).

7. A drilling device for geological prospecting according to claim 1, characterized in that: Another upper column head (1301) that is slidably matched with the lower column head (1303) is fixed to the top end of the drill shaft body (9).

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