Drilling and reaming device for hydrogeological exploration

Abstract

The invention relates to the field of drilling and chambering, in particular to a drilling and chambering device for hydrogeological exploration, which comprises a ground and a base, a vertical frame is fixedly connected to the base, a supporting screw is fixedly connected to one side of the vertical frame, a ball head clamping jaw is fixedly connected to the other end of the supporting screw, and the ball head clamping jaw is fixedly connected to the other side of the vertical frame. A connecting ball head is rotationally installed in the ball head clamping jaw, a guide rod and a speed reduction transmission mechanism are clamped in the clamping head, the speed reduction transmission mechanism comprises a supporting frame, a U-shaped jaw, a speed reduction gear set, relay teeth and a reaming mechanism, the reaming mechanism comprises a rotating disc and a fixing base, and a reaming cutter is fixedly connected to the lower portion of the fixing base. The ball head clamping jaw is rotationally connected with the connecting ball head, so that the double-shaft motor can be freely adjusted at any angle, when the guide rod is inserted into an inclined drill hole, the double-shaft motor and the guide rod can be conveniently adjusted in the same vertical direction, and the device can adapt to reaming operation of the inclined hole.

Description

Technical Field

[0001] The invention relates to the field of drilling and expanding holes, and in particular to a drilling and expanding hole device for hydrogeological exploration. Background Art

[0002] Hydrogeological exploration is the process of identifying the hydrogeological conditions of aquifers and calculating the hydrogeological parameters of aquifers through drilling, geophysical exploration, field tests and other means. During hydrogeological exploration activities, a survey hole needs to be opened on site to facilitate stratigraphic investigation and hydrogeological measurements. Due to the variety of survey equipment, when the survey equipment is larger than the diameter of the survey hole, the survey hole needs to be expanded to allow the survey equipment to be surveyed.

[0003] For example, a geological exploration reamer disclosed in the Chinese patent publication with the announcement number CN114135231B includes a support frame, and a plurality of support legs are installed on one side of the support frame. The geological exploration reamer also includes: a lifting transmission mechanism, which is installed on the support frame and is used for lifting and reaming; a movable reaming mechanism, which includes a rotating reaming assembly for rotating reaming and a reaming adjustment assembly for adjusting the reaming size, and the rotating reaming assembly is installed at one end of the lifting transmission mechanism, and the reaming adjustment assembly is installed on the rotating reaming assembly. The geological exploration reamer provided by the present invention is provided with a lifting transmission mechanism and a movable reaming mechanism, which can adjust the reaming after completing the drilling of geological exploration, and synchronously reaming the upper end of the hole, so as to facilitate geological exploration drilling sampling, easy operation, and quick reaming. The patent has the following problems:

[0004] First, use a thinner drilling rod to drill holes, and then use a reamer to expand the already drilled holes. The reaming equipment is easy to deviate from the original drilling position. The deviation of the reaming position will increase the friction between the drill and the hole wall, aggravate the bending deformation and wear of the drill rod, and even cause the drill bit to break or jam.

[0005] Second, in special application scenarios of geological exploration drilling, such as exploration of steeply inclined mineral deposits, horizontal holes in tunnels, or vertical upward holes, the early drilling is not vertically downward, and existing equipment is difficult to cope with the problem of hole expansion operations in inclined boreholes. Summary of the invention

[0006] The object of the present invention is to provide a drilling and expanding device for hydrogeological exploration to solve the existing problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a drilling and expanding device for hydrogeological exploration, comprising a ground surface, a borehole being arranged on the ground surface, and further comprising:

[0008] Base, a vertical frame is fixedly connected to the upper surface of the base, a support screw rod is fixedly connected to one side of the vertical frame, a ball head jaw is fixedly connected to the other end of the support screw rod, a connecting ball head is rotatably installed in the ball head jaw, a fixing plate is fixedly connected to one side of the connecting ball head, a dual-axis motor is fixedly connected to the other side of the fixing plate, a chuck is fixedly connected to the lower output end of the dual-axis motor, and a guide rod is clamped in the chuck;

[0009] Reduction drive mechanism, the reduction drive mechanism includes a support frame, a U-shaped claw, a reduction gear set, and a relay gear. The reduction gear set is rotatably installed on the support frame through a shaft. A transmission shaft is rotatably installed in the support frame. A driven bevel gear is fixedly connected to one end of the transmission shaft. A driving bevel gear is fixedly connected to the upper output end of the dual-axis motor. The driving bevel gear and the driven bevel gear are meshed with each other. The transmission shaft is connected to the relay gear, the relay gear cooperates with the reduction gear set, and a meshing drive gear is fixedly connected to the reduction gear set through a shaft;

[0010] Hole expanding mechanism, the hole expanding mechanism includes a rotating disk and a fixed seat. A hole expanding tool is fixedly connected to the lower surface of the fixed seat. A T-shaped slider is fixedly connected to the upper surface of the fixed seat. Three T-shaped connecting grooves are arranged in an array on the lower surface of the rotating disk. The T-shaped connecting grooves are slidably matched with the T-shaped slider. A connecting sleeve is fixedly connected to the upper surface of the rotating disk. A bearing is fixedly connected to the outer wall of the connecting sleeve. A transmission rod is fixedly connected to one side of the bearing. A plurality of concave teeth are arranged on one side of the transmission rod. The concave teeth are meshed with the meshing drive gear.

[0011] As a further solution of the present invention, a triangular reinforcing rib is welded at the included angle between the base and one side of the vertical frame. A foot pedal is fixedly connected to the position near the other edge of the base. An extrusion nut is threadedly installed on the support screw rod. The extrusion nut cooperates with the ball head jaw.

[0012] As a further solution of the present invention, a limiting collar is fixedly connected to one side of the dual-axis motor. The transmission rod is slidably installed in the limiting collar. A support platform is fixedly connected to the front surface of the support frame. A limiting chute is arranged in the support platform. A threaded adjusting rod is rotatably installed in the limiting chute. A limiting slider is fixedly connected to the lower surface of the U-shaped claw. The limiting slider is slidably matched with the limiting chute. A threaded through hole is arranged in the limiting slider. The threaded through hole is threadedly matched with the threaded adjusting rod.

[0013] As a further solution of the present invention, a limiting slide hole is arranged at the front end of the transmission shaft. A limiting transmission shaft is fixedly connected to the back of the relay gear. The limiting transmission shaft is slidably matched with the limiting slide hole.

[0014] As a further solution of the present invention, a limiting groove is arranged on the outer wall of one side of the guide rod. Limiting convex strips are fixedly connected to the inner walls of the rotating disk and the connecting sleeve. The limiting convex strips are slidably matched with the limiting groove.

[0015] As a further solution of the present invention, a touch bottom plate is rotatably installed at the lower end of the guide rod, and a number of threaded sleeve blocks are embedded and installed around the touch bottom plate in an array. An adjusting screw rod is installed in the threaded sleeve block by thread, and a touch wall head is fixedly connected to the end of the adjusting screw rod.

[0016] As a further solution of the present invention, a chip removal groove is opened in the rotating disk, a sliding groove is opened in the rotating disk, the sliding groove is internally communicated with the T-shaped connection groove, a threaded hole is opened on the upper surface of the rotating disk, a threaded column is installed in the threaded hole by thread, a pressing and fixing block is rotatably installed at the lower end of the threaded column, the pressing and fixing block is slidably installed in the sliding groove, a knob is fixedly connected to the upper end of the threaded column, and scales are engraved on both sides of the T-shaped slider.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By rotatably connecting the ball head clamp with the connecting ball head, the double-shaft motor can freely adjust any angle. When the guide rod is inserted into an inclined drill hole, it is convenient to adjust the double-shaft motor and the guide rod to the same vertical direction, so that the device can adapt to the reaming operation of inclined holes.

[0019] 2. By using the speed reduction transmission mechanism, the transmission rod can be linked with the driving bevel gear. While the reaming mechanism rotates, it can synchronously drive the reaming mechanism to slowly move down automatically for the reaming operation. At the same time, rotating the threaded adjusting rod drives the U-shaped claw to move backward, and the U-shaped claw will drive the relay gear to move backward, so that the relay gear is staggered from the gears of the speed reduction gear set. At this time, the connection between the double-shaft motor and the speed reduction gear set will be interrupted. At this time, the transmission rod can be directly manually pulled to drive the reaming mechanism to quickly move up and reset, and at the same time, it is convenient to manually press the transmission rod to drive the reaming mechanism to move down in special cases.

[0020] 3. By inserting the guide rod into the drill hole and using the guide rod to guide the downward movement direction of the reaming mechanism, the deviation of the reaming position of the reaming mechanism can be effectively avoided. At the same time, by directly inserting the guide rod into the drill hole, compared with the traditional method of slowly aligning manually, it is more efficient and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure during the use of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the base structure of the present invention;

[0024] Figure 4 It is a partial exploded view of the present invention;

[0025] Figure 5For the present invention Figure 4 Enlarged view of part A in

[0026] Figure 6 Schematic diagram of the guide rod structure of the present invention

[0027] Figure 7 Partial schematic diagram of the hole expanding mechanism of the present invention

[0028] Figure 8 Half-sectional view of the hole expanding mechanism of the present invention

[0029] Figure 9 Schematic diagram of the fixed seat structure of the present invention

[0030] In the figure: 1, ground; 101, drilling hole; 2, base; 201, vertical frame; 202, foot pedal; 203, support screw; 204, ball head jaw; 205, extrusion sleeve; 3, dual-axis motor; 301, fixing plate; 302, connecting ball head; 303, chuck; 304, driving bevel gear; 305, limiting collar; 4, speed reduction transmission mechanism; 401, support frame; 402, transmission shaft; 403, limiting sliding hole; 404, support platform; 405, limiting sliding groove; 406, threaded adjusting rod; 407, driven bevel gear; 5, U-shaped claw; 501, limiting slider; 502, threaded through hole; 6, speed reduction gear set; 601, meshing transmission teeth; 7, relay tooth; 701, limiting transmission shaft; 8, guide rod; 801, contact bottom plate; 802, threaded sleeve block; 803, adjusting screw; 804, limiting groove; 9, hole expanding mechanism; 901, rotating disk; 902, chip removal groove; 903, connecting sleeve; 904, bearing; 905, transmission rod; 906, concave tooth; 907, T-shaped connecting groove; 908, sliding groove; 909, threaded column; 910, extrusion fixing block; 911, knob; 912, threaded hole; 913, limiting rib; 10, fixed seat; 1001, T-shaped slider; 1002, scale; 1003, hole expanding tool. Specific embodiments

[0031] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1-9 shown, the present invention has the following specific embodiments.

[0033] Embodiment 1

[0034] A borehole reaming device for hydrogeological exploration, including the ground 1, on which there is a borehole 101, and further including:

[0035] A base 2, on which there is a vertical frame 201 fixedly connected. On one side of the vertical frame 201, there is a support screw rod 203 fixedly connected, and at the other end of the support screw rod 203, there is a ball head clamp 204. A connecting ball head 302 is rotatably installed in the ball head clamp 204. On one side of the connecting ball head 302, there is a fixed plate 301 fixedly connected, and on the other side of the fixed plate 301, there is a dual-axis motor 3. The lower output end of the dual-axis motor 3 is fixedly connected with a chuck 303, and a guide rod 8 is clamped in the chuck 303;

[0036] A speed reduction transmission mechanism 4, which includes a support frame 401, a U-shaped claw 5, a speed reduction gear set 6, and a relay gear 7. The speed reduction gear set 6 is rotatably installed on the support frame 401 through a shaft. A transmission shaft 402 is rotatably installed in the support frame 401. One end of the transmission shaft 402 is fixedly connected with a driven bevel gear 407, and the upper output end of the dual-axis motor 3 is fixedly connected with a driving bevel gear 304. The driving bevel gear 304 and the driven bevel gear 407 are meshed with each other. The transmission shaft 402 is connected with the relay gear 7, and the relay gear 7 is cooperated with the speed reduction gear set 6. The speed reduction gear set 6 is fixedly connected with a meshing transmission tooth 601 through a shaft;

[0037] A reaming mechanism 9, which includes a rotating disk 901 and a fixed seat 10. Below the fixed seat 10, there is a reaming cutter 1003 fixedly connected. Above the fixed seat 10, there is a T-shaped slider 1001 fixedly connected. On the lower surface of the rotating disk 901, three T-shaped connection grooves 907 are arranged in an array. The T-shaped connection grooves 907 are slidably matched with the T-shaped slider 1001. Above the rotating disk 901, there is a connecting sleeve 903 fixedly connected. On the outer wall of the connecting sleeve 903, there is a bearing 904 fixedly connected. On one side of the bearing 904, there is a transmission rod 905 fixedly connected. On one side of the transmission rod 905, there are a number of concave teeth 906, and the concave teeth 906 are meshed with the meshing transmission tooth 601.

[0038] In this implementation, by inserting the guide rod 8 into the interior of the drill hole 101, and the reaming mechanism 9 is sleeved on the guide rod 8 and can only move up and down along the guide rod 8. The end of the guide rod 8 is clamped by the chuck 303, connecting the guide rod 8 to the dual-axis motor 3. The connecting ball head 302 is rotatably installed inside the ball head jaw 204, and further rotatably connecting the dual-axis motor 3 to the vertical frame 201, enabling the dual-axis motor 3 to freely adjust any angle relative to the vertical frame 201. When the guide rod 8 is inserted into the inclined drill hole 101, it is convenient to adjust the dual-axis motor 3 and the guide rod 8 to the same vertical direction and connect the guide rod 8 to the dual-axis motor 3. Subsequently, by pinching the ball head jaw 204, the connecting ball head 302 can be clamped, restricting the random rotation of the dual-axis motor 3. The bracket composed of the base 2 and the vertical frame 201 provides a supporting force for the dual-axis motor 3, enabling the dual-axis motor 3 to be stably in a suspended state. When the dual-axis motor 3 is started, the output ends at both the upper and lower ends will synchronously drive the chuck 303 and the driving bevel gear 304 to rotate. First, the rotation of the chuck 303 will drive the rotation of the guide rod 8, and the rotation of the guide rod 8 will drive the rotation of the reaming mechanism 9. The rotation of the reaming mechanism 9 will drive the rotation of the reaming cutter 1003, and the reaming cutter 1003 will perform reaming cutting on the inner hole wall of the drill hole 101. Secondly, the driving bevel gear 304 and the driven bevel gear 407 are meshed with each other. Therefore, the rotation of the driving bevel gear 304 will drive the rotation of the relay gear 7. The relay gear 7 is meshed with the input gear of the reduction gear set 6. Therefore, the rotation of the relay gear 7 will conduct the power to the reduction gear set 6. By using the cooperation of multiple gears in the reduction gear set 6, the rotational speed is greatly reduced and then drives the meshing transmission gear 601 to rotate. The meshing transmission gear 601 is meshed with the concave tooth 906. Therefore, the rotation of the meshing transmission gear 601 will drive the transmission rod 905 to move downward. The downward movement of the transmission rod 905 will synchronously drive the entire reaming mechanism 9 to move downward through the bearing 904, causing the reaming cutter 1003 to rotate and slowly move downward synchronously, automatically performing the reaming operation on the drill hole 101. Since the reaming mechanism 9 is sleeved on the guide rod 8, using the guide rod 8 to guide the downward movement direction of the reaming mechanism 9 can effectively prevent the deviation of the reaming position of the reaming mechanism 9. At the same time, by directly inserting the guide rod 8 into the interior of the drill hole 101, compared with the traditional method of slowly aligning manually, it is more efficient and accurate. It should be noted that the connection method of using the ball head jaw 204 and the connecting ball 302 in this device has limited load-bearing capacity, resulting in the main working conditions of this device being reaming the silt deposits at the bottom of the riverbed and river channel, avoiding excessive pressure on the connection parts of the device and making it difficult to adapt to reaming with greater difficulty such as rocks, which is a certain shortcoming of this device.

[0039] Embodiment 2

[0040] As Figure 1 , 2As shown in Figures 3 and 4, a triangular reinforcing rib is welded at the included angle on one side of the base 2 and the vertical frame 201. A footrest 202 is fixedly connected to the position near the other edge of the base 2. An extrusion sleeve 205 is threadedly installed on the support screw 203, and the extrusion sleeve 205 cooperates with the ball head jaw 204.

[0041] In this implementation scheme, through the welded triangular reinforcing rib, the bending resistance of the vertical frame 201 can be improved, making the overall structure of the base 2 and the vertical frame 201 more stable, and avoiding bending deformation during the reaming process. The footrest 202 can cooperate with the operator's foot to step on and press the base 2 on the ground 1, providing additional downward pressure for the device, so that the bracket composed of the base 2 and the vertical frame 201 can stably support the dual-axis motor 3. The extrusion sleeve 205 is threadedly installed on the support screw 203. When the extrusion sleeve 205 is rotated, its opening will cover the ball head jaw 204, causing the jaws of the ball head jaw 204 to close, and then squeezing the connecting ball head 302 inside the ball head jaw 204 to relatively fix the connecting ball head 302 in the ball head jaw 204.

[0042] Embodiment 3

[0043] As Figure 4 、 5 As shown in Figures 8, a limit collar 305 is fixedly connected to one side of the dual-axis motor 3. The transmission rod 905 is slidably installed in the limit collar 305. A support platform 404 is fixedly connected to the front of the support frame 401. A limit chute 405 is opened in the support platform 404. A threaded adjustment rod 406 is rotatably installed in the limit chute 405. A limit slider 501 is fixedly connected to the lower part of the U-shaped claw 5. The limit slider 501 is slidably matched with the limit chute 405. A threaded through hole 502 is opened in the limit slider 501, and the threaded through hole 502 is threadedly matched with the threaded adjustment rod 406. A limit slide hole 403 is opened at the front end of the transmission shaft 402. A limit transmission shaft 701 is fixedly connected to the back of the relay gear 7, and the limit transmission shaft 701 is slidably matched with the limit slide hole 403.

[0044] In this embodiment, the limit ring 305 is slidably matched with the transmission rod 905 to limit the transmission rod 905 to move up and down. The limit transmission shaft 701 is slidably inserted into the limit sliding hole 403. The protrusion on the outer wall of the limit transmission shaft 701 is meshed with the groove in the limit sliding hole 403. Then, the rotation of the transmission shaft 402 will drive the limit transmission shaft 701 to rotate. At the same time, the limit transmission shaft 701 can slide back and forth inside 703. The threaded adjustment rod 406 is threadedly matched with the threaded through hole 502. Rotating the threaded adjustment rod 406 can drive the limit sliding hole 403 to rotate. Block 501 moves, and the movement of the limit slider 501 can drive the U-shaped claw 5 to move, and the relay tooth 7 is stuck in the U-shaped groove of the U-shaped claw 5, and then the movement of the U-shaped claw 5 can drive the relay tooth 7 to move, and the rearward movement of the relay tooth 7 will be staggered with the reduction gear set 6, thereby interrupting the linkage between the active bevel gear 304 and the reduction gear set 6. At this time, the dual-axis motor 3 cannot drive the reaming mechanism 9 to move downward through the reduction transmission mechanism 4, so that in special circumstances, the transmission rod 905 can be manually pressed to drive the reaming mechanism 9 to move downward, and the reaming mechanism 9 can also be directly pulled up to reset.

[0045] Example 4

[0046] like Figure 6 , 7 As shown, a limiting groove 804 is provided on the outer wall of one side of the guide rod 8, and a limiting convex strip 913 is fixedly connected to the inner wall of the rotating disk 901 and the connecting sleeve 903. The limiting convex strip 913 is slidably matched with the limiting groove 804. A contact plate 801 is rotatably installed on the lower end of the guide rod 8, and a plurality of threaded sleeves 802 are embedded and installed in an array around the contact plate 801. An adjusting screw 803 is installed on the inner thread of the threaded sleeve 802, and a wall-contact head is fixedly connected to the end of the adjusting screw 803.

[0047] In this embodiment, the limiting groove 804 cooperates with the limiting convex strip 913, so that the rotating disk 901 can move up and down relative to the guide rod 8, and the guide rod 8 can be used to drive the rotating disk 901 to rotate. The bottom plate 801 is rotatably installed at the lower end of the guide rod 8, and the bottom plate 801 is used to contact the bottom of the borehole 101 to avoid contact and friction between the bottom of the borehole 101 when the guide rod 8 rotates. At the same time, the adjusting screw 803 is threadedly installed inside the threaded sleeve block 802. Rotating the adjusting screw 803 can adjust the distance between the wall-contacting head and the bottom plate 801, and the wall-contacting head is used to fit the inner wall of the borehole 101 to limit the bottom plate 801 to the center position.

[0048] Example 5

[0049] like Figure 7 , 8, as shown in FIGS. 9, a chip removal groove 902 is provided in the rotary disk 901, a sliding groove 908 is provided in the rotary disk 901, the sliding groove 908 communicates with the inside of the T-shaped connecting groove 907, a threaded hole 912 is provided on the upper surface of the rotary disk 901, a threaded column 909 is installed with internal threads in the threaded hole 912, a pressing and fixing block 910 is rotatably installed at the lower end of the threaded column 909, the pressing and fixing block 910 is slidably installed in the sliding groove 908, a knob 911 is fixedly connected to the upper end of the threaded column 909, and scales 1002 are marked on both sides of the T-shaped slider 1001.

[0050] In this embodiment, by using the knob 911, the threaded column 909 can be driven to rotate. The rotation of the threaded column 909 can drive the pressing and fixing block 910 to move. The lower surface of the pressing and fixing block 910 and the upper surface of the T-shaped slider 1001 are both roughened. By using the pressing and fixing block 910 to press the T-shaped slider 1001 located in the T-shaped connecting groove 907, the T-shaped slider 1001 can be fixed inside the T-shaped connecting groove 907. Furthermore, the reaming cutter 1003 is installed below the rotary disk 901. At the same time, according to needs, the position of the T-shaped slider 1001 in the T-shaped connecting groove 907 can be adjusted, and then the reaming radius of the reaming cutter 1003 can be adjusted, and the reaming size can be adjusted according to requirements. The scale 1002 facilitates the operator to accurately control the insertion depth of the T-shaped slider 1001.

[0051] The working principle and usage process of the present invention:

[0052] S1. First, rotate the adjusting screw rod 803 according to the radius of the drill hole 101 to drive the contact wall head to move, so that the distance between the contact wall head and the center of the contact bottom plate 801 is the same as the radius of the drill hole 101. Then, the guiding rod 8 can be inserted into the drill hole 101. Move the double-shaft motor 3 to the upper end of the guiding rod 8, and make the reaming mechanism 9 sleeved on the guiding rod 8. Adjust the double-shaft motor 3 and the guiding rod 8 to be in the same vertical direction. Use the connecting ball head 302 to clamp and fix the upper end of the guiding rod 8. Place the base 2 horizontally on the ground 1, and insert the feet into the pedal 202 to step on the base 2. Finally, tighten the pressing sleeve 205 to squeeze and close the ball head clamping jaws 204, and fix the connecting ball head 302 inside the ball head clamping jaws 204.

[0053] S2. Start the double-shaft motor 3 to synchronously drive the guiding rod 8 and the driving bevel gear 304 to rotate. The driving bevel gear 304 can drive the transmission rod 905 to move downward through the speed reduction transmission mechanism 4. The rotation of the guiding rod 8 will drive the rotary disk 901 to rotate, and the rotary disk 901 will drive the reaming cutter 1003 to rotate. The downward movement of the transmission rod 905 will drive the entire reaming mechanism 9 to move downward, and then reaming is performed during the downward movement. When the reaming mechanism 9 moves to the position at the lower end of the guiding rod 8, the preliminary reaming is completed and the double-shaft motor 3 is stopped.

[0054] S3. Rotate the threaded adjusting rod 406 to drive the U-shaped claw 5 to move backward. The U-shaped claw 5 will drive the relay gear 7 to move backward, causing the relay gear 7 to be offset from the gears of the reduction gear set 6. At this time, the linkage between the dual-axis motor 3 and the reduction gear set 6 will be interrupted, and the transmission rod 905 can be directly manually pulled upward to reset. Use the knob 911 to drive the threaded column 909 to rotate. The rotation of the threaded column 909 will drive the extrusion fixing block 910 to move upward, releasing the fixation of the T-shaped slider 1001. According to the requirements of reaming, move the T-shaped slider 1001 outward, thereby driving the scale 1002 to move outward, adjust the scale 1002 to a suitable position, and rotate the knob 911 in the reverse direction to drive the extrusion fixing block 910 to move downward and reset to fix the T-shaped slider 1001. Fix the reaming tool 1003 under the rotating disk 901 again;

[0055] S4. Rotate the threaded adjusting rod 406 in the reverse direction to drive the U-shaped claw 5 to move forward. The U-shaped claw 5 will drive the relay gear 7 to reset again, causing the relay gear 7 to mesh with the gears of the reduction gear set 6 again. Repeat step S2 to re-expand the drill hole 101 to the designed aperture.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling and expanding device for hydrogeological exploration, comprising a ground surface, on which a borehole is arranged, characterized in that: Also includes: A base, a stand is fixedly connected to the base, a support screw is fixedly connected to one side of the stand, a ball head clamp is fixedly connected to the other end of the support screw, a connecting ball is rotatably installed in the ball head clamp, a fixing plate is fixedly connected to one side of the connecting ball, a dual-axis motor is fixedly connected to the other side of the fixing plate, a chuck is fixedly connected to the output end below the dual-axis motor, and a guide rod is clamped in the chuck; A reduction transmission mechanism, the reduction transmission mechanism includes a support frame, a U-shaped claw, a reduction gear set, and a relay tooth. The reduction gear set is rotatably mounted on the support frame through an axis, a transmission shaft is rotatably mounted in the support frame, one end of the transmission shaft is fixedly connected to a driven bevel tooth, an upper output end of the dual-axis motor is fixedly connected to an active bevel tooth, the active bevel tooth and the driven bevel tooth are meshed with each other, the transmission shaft is connected to the relay tooth, the relay tooth cooperates with the reduction gear set, and the reduction gear set is fixedly connected to meshing transmission teeth through an axis; The reaming mechanism comprises a rotating disk and a fixed seat, a reaming knife is fixedly connected to the bottom of the fixed seat, a T-shaped slider is fixedly connected to the top of the fixed seat, three T-shaped connecting grooves are arranged in an array on the bottom of the rotating disk, the T-shaped connecting grooves are slidably matched with the T-shaped slider, a connecting sleeve is fixedly connected to the top of the rotating disk, a bearing is fixedly connected to the outer wall of the connecting sleeve, a transmission rod is fixedly connected to one side of the bearing, a plurality of concave teeth are arranged on one side of the transmission rod, and the concave teeth are meshed with the meshing transmission teeth.

2. A drilling and expanding device for hydrogeological exploration according to claim 1, characterized in that: A triangular reinforcing rib is welded at the angle between the base and the stand on one side, a footrest is fixedly connected to the base near the edge of the other side, an extrusion screw sleeve is threadedly installed on the support screw rod, and the extrusion screw sleeve cooperates with the ball head clamp.

3. The drilling and expanding device for hydrogeological exploration according to claim 1, characterized in that: A limiting collar is fixedly connected to one side of the dual-axis motor, and the transmission rod is slidably installed in the limiting collar. A support platform is fixedly connected to the front of the support frame, and a limiting groove is provided in the support platform. A threaded adjustment rod is rotatably installed in the limiting groove. A limiting slider is fixedly connected to the bottom of the U-shaped claw, and the limiting slider is slidably matched with the limiting groove. A threaded through hole is provided in the limiting slider, and the threaded through hole is threadably matched with the threaded adjustment rod.

4. The drilling and expanding device for hydrogeological exploration according to claim 1, characterized in that: A limiting sliding hole is arranged at the front end of the transmission shaft, and the rear of the relay tooth is fixedly connected to the limiting transmission shaft, and the limiting transmission shaft is slidably matched with the limiting sliding hole.

5. The drilling and expanding device for hydrogeological exploration according to claim 1, characterized in that: A limiting groove is arranged on the outer wall of one side of the guide rod, and a limiting convex strip is fixedly connected to the inner wall of the rotating disk and the connecting sleeve, and the limiting convex strip is slidably matched with the limiting groove.

6. The drilling and expanding device for hydrogeological exploration according to claim 1, characterized in that: A bottom contact plate is rotatably mounted on the lower end of the guide rod, a plurality of threaded sleeves are embedded and mounted in an array around the bottom contact plate, an adjusting screw is threadedly mounted on the inner thread of the threaded sleeve, and a wall contact head is fixedly connected to the end of the adjusting screw.

7. The drilling and expanding device for hydrogeological exploration according to claim 1, characterized in that: A chip removal groove is provided in the rotating disk, a sliding groove is provided in the rotating disk, the sliding groove is communicated with the inside of the T-shaped connecting groove, a threaded hole is provided on the rotating disk, a threaded column is threadedly installed in the threaded hole, an extrusion fixing block is rotatably installed at the lower end of the threaded column, the extrusion fixing block is slidably installed in the sliding groove, a knob is fixedly connected to the upper end of the threaded column, and scales are engraved on both sides of the T-shaped slider.

Images