A geothermal detection device for geological exploration

Abstract

This invention discloses a geothermal detection device for geological exploration, comprising multiple symmetrically arranged hydraulic cylinders. Each hydraulic cylinder has a hydraulic adjusting rod slidably and sealed at its upper end. A drilling support is mounted on the upper end of the multiple hydraulic adjusting rods. A pressure sleeve is centrally and rotatably inserted into the drilling support. A drill rod is inserted into the lower end of the pressure sleeve. A soil-discharging auger is mounted on the outer wall of the drill rod, and a drill bit is mounted at the lower end of the drill rod. This invention increases the detection depth through multi-stage drill rod connections and uses a fixed communication connection between the multi-stage drill rods to enable unobstructed, direct, and accurate detection of the designated area. It is more reliable, has a simple structure, is easy to operate, and can achieve accurate geothermal detection at multiple depths.

Description

Technical Field

[0001] This invention relates to the field of geothermal exploration, and more particularly to a geothermal detection device for geological exploration. Background Technology

[0002] Existing geothermal exploration methods typically involve drilling and releasing probes or embedding probes within drill rods. Drilling and releasing probes involves drilling a hole in the exploration area and then lowering the probe and conductor to the bottom of the hole. However, this method is limited by the conductor length, resulting in shallow exploration depth. Furthermore, the probe's descent within the hole is uncontrollable, easily becoming stuck on the hole's inner wall, leading to inaccurate depth readings and reduced reliability. Embedding probes within drill rods requires a connection between the outer wall of the drill rod and the probe itself. Even if the probe is connected to the hole, drilling debris can easily enter the drill rod, affecting the probe's detection, leading to inaccurate results and potential damage to the probe, making the exploration unreliable. Summary of the Invention

[0003] The purpose of this invention is to solve the shortcomings of existing technologies, such as the cumbersome operation of drilling and releasing the probe, the susceptibility to interference leading to inaccurate detection and shallow detection depth, and the susceptibility of the probe built into the drill rod to the interference of broken soil affecting accuracy and easy damage to the probe. Therefore, this invention proposes a geothermal detection device for geological exploration.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A geothermal exploration device includes multiple symmetrically arranged hydraulic cylinders. Each hydraulic cylinder has a hydraulic adjusting rod slidably and sealed at its upper end. A drilling support is mounted on the upper ends of the hydraulic adjusting rods. A pressure sleeve is centrally and rotatably inserted into the drilling support. A drill rod is inserted into the lower end of the pressure sleeve. A soil-discharging auger is mounted on the outer wall of the drill rod. A drill bit is mounted at the lower end of the drill rod. The drill rod includes a plug and a slot. A wire hole communicating with the slot is formed on the end wall of the plug. A communication wire is installed in the wire hole. Both ends of the communication wire extend to the outer side of the plug and into the slot, respectively, and are respectively fitted with connecting nuts. The drill bit includes a male connector and a female connector. The female connector has multiple right-angle locking grooves symmetrically formed on its outer side wall. Multiple connecting locking pins are symmetrically fixedly installed on the inner wall of the slot. Multiple driving locking pins are symmetrically fixedly installed on the inner wall of the pressure sleeve. Each driving locking pin is slidably inserted into a corresponding right-angle locking groove. The drill bit includes a plug rod slidably inserted into the slot. Multiple detection probes are symmetrically embedded on the outer side wall of the plug rod. A corrugated connecting pipe is installed at the upper end of the plug rod, and a detection female connector is installed at the upper end of the corrugated connecting pipe. Each detection probe is electrically connected to the detection female connector. The male connector is inserted into the detection female connector.

[0006] Preferably, a conical soil discharge cover is installed on multiple hydraulic cylinders, a drill hole is centrally opened on the conical soil discharge cover, the drill rod is inserted into the drill hole, and multiple soil discharge grooves are symmetrically opened on the outer side wall of the conical soil discharge cover.

[0007] Preferably, a drive motor is installed at the bottom of the drilling support, the shaft of the drive motor extends to the top of the drilling support and a drive gear is fixedly installed thereon, and a drilling gear is fixedly sleeved on the outer side wall of the pressure sleeve, and the drilling gear and the drive gear cooperate with each other.

[0008] Preferably, a testing host is fixedly installed on the drilling support, and a testing male connector is installed on the testing host, which is matched with a connecting female connector.

[0009] Preferably, a plurality of friction posts are symmetrically and helically installed at equal intervals on the outer side wall of the drill bit, and a plurality of guide grooves are symmetrically and helically opened at equal intervals on the outer side wall of the drill bit, with each guide groove located between two adjacent friction posts at the same height.

[0010] Preferably, the female connector is fixed to the end wall of the plug, the male connector is fixed to the bottom wall of the slot, and a connecting spring is installed at the upper end of the plug rod, which is sleeved on the corrugated connecting tube and the detection female connector. The upper end of the connecting spring is fixed to the bottom wall of the slot.

[0011] The beneficial effects of this invention are: by connecting multiple drill rods, the detection depth is increased, and by fixing the communication connection through multiple drill rods, it can reach the set area directly and accurately for detection without obstruction. It is more reliable to use, and the structure is simple and easy to operate, enabling accurate geothermal detection at multiple depths. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a geothermal detection device for geological exploration proposed in this invention;

[0013] Figure 2 This is an enlarged view of the conical soil-discharging cover portion of a geothermal exploration device for geological exploration proposed in this invention;

[0014] Figure 3 This is an enlarged view of the connecting head portion of a geothermal detection device for geological exploration proposed in this invention;

[0015] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 5 for Figure 1 Enlarged view of section B in the middle.

[0017] In the diagram: 1 Hydraulic cylinder, 11 Hydraulic adjusting rod, 12 Drilling support, 2 Conical soil discharge cover, 21 Drill hole, 22 Soil discharge trough, 3 Drive motor, 31 Drive gear, 4 Pressure sleeve, 41 Drilling gear, 42 Drive locking post, 5 Detection host, 51 Detection male connector, 6 Drill rod, 61 Plug, 62 Slot, 63 Wire hole, 64 Soil discharge spiral blade, 65 Connecting locking post, 7 Communication wire, 71 Connecting female connector, 72 Right angle locking groove, 73 Connecting male connector, 8 Drill bit, 81 Connecting rod, 82 Corrugated connecting pipe, 83 Detection female connector, 84 Connecting spring, 85 Detection probe, 86 Friction post, 87 Guide groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Reference Figure 1-5 A geothermal exploration device for geological exploration includes multiple symmetrically arranged hydraulic cylinders 1. Each hydraulic cylinder 1 has a hydraulic adjusting rod 11 sealed and slidably inserted at its upper end. A drilling support 12 is mounted on the upper ends of the multiple hydraulic adjusting rods 11. A pressure sleeve 4 is centrally and rotatably inserted into the drilling support 12. A drill rod 6 is inserted into the lower end of the pressure sleeve 4. A soil-discharging spiral blade 64 is mounted on the outer wall of the drill rod 6. A drill bit 8 is mounted on the lower end of the drill rod 6. The drill rod 6 includes a plug 61 and a slot 62. A wire hole 63 communicating with the slot 62 is opened on the end wall of the plug 61. A communication wire 7 is installed in the wire hole 63. Both ends of the communication wire 7 extend to the outer side of the plug 61 and into the slot 62, respectively, and are respectively fitted with connecting female heads 71. The male connector 73 and the female connector 71 are symmetrically provided with multiple right-angle locking grooves 72 on their outer side walls. Multiple connecting locking pins 65 are symmetrically fixedly installed on the inner wall of the slot 62. Multiple driving locking pins 42 are symmetrically fixedly installed on the inner wall of the pressure sleeve 4. The multiple driving locking pins 42 are slidably inserted into the corresponding multiple right-angle locking grooves 72. The drill bit 8 includes a plug rod 81 that is slidably inserted into the slot 62. Multiple detection probes 85 are symmetrically embedded on the outer side wall of the plug rod 81. A corrugated connecting tube 82 is installed at the upper end of the plug rod 81. A detection female connector 83 is installed at the upper end of the corrugated connecting tube 82. Each detection probe 85 is electrically connected to the detection female connector 83. The male connector 73 is inserted into the detection female connector 83.

[0020] When the pressure sleeve 4 rotates, it can drive the drill rod 6 to rotate, which in turn can cause the drill bit 8 and the soil discharge auger 64 to rotate. The rotation of the drill bit 8 can drill into the ground surface to form an exploration hole, and the soil discharge auger 64 can discharge the broken soil in the exploration hole drilled by the drill bit 8 out of the hole, so that the drill rod 6 can smoothly extend into the exploration hole.

[0021] The hydraulic cylinder 1 controls the internal pressure through external hydraulic equipment, which enables the hydraulic adjusting rod 11 to move up and down. This, in turn, drives the pressure sleeve 4 to move up and down through the drilling support 12. When the pressure sleeve 4 moves downward, it can push the drill rod 6 downward, thus applying downward pressure to the drill rod 6. This allows the drill rod 6 and the drill bit 8 to drill downward, enabling deep drilling for geothermal detection and making the detection more accurate.

[0022] The pressure sleeve 4 is fitted onto the plug 61 end and is rotated and locked by inserting the drive locking pin 42 into the right-angle locking groove 72. During drilling, the pressure sleeve 4 is locked to the connecting female head 71 to prevent slippage during drilling. The pressure sleeve 4 can drive the drill rod 6 to rotate through the connecting female head 71, and can move the drill rod 6 up and down in the rotating state through the interlocking of the drive locking pin 42 and the right-angle locking groove 72. This enables the drill rod 6 and drill bit 8 to be drilled downwards and taken out upwards, preventing the drill rod 6 from falling out of the exploration hole and making it more reliable.

[0023] When the drive locking pin 42 and the right-angle locking groove 72 rotate during drilling, they can interlock. When the pressure sleeve 4 reverses a certain angle, it can drive the drive locking pin 42 to reverse within the right-angle locking groove 72, thus unlocking the drive locking pin 42 from the right-angle locking groove 72. When the pressure sleeve 4 moves upward, it can separate the pressure sleeve 4 from the plug 61 of the drill rod 6, allowing another drill rod 6 to be added. This allows the connecting locking pin 65 in the slot 62 to be inserted into the right-angle locking groove 72, thus enabling the pressure sleeve 4 to... By connecting the drive locking pin 42 to the right-angle locking groove 72 of the upper drill rod 6, during rotary drilling, the pressure sleeve 4 rotates and locks with the upper drill rod 6, driving the upper drill rod 6 to rotate and lock with the lower drill rod 6. This enables the connection of multiple drill rods 6, allowing for deeper drilling and exploration, increasing the detection depth. Furthermore, the female connector 71 and male connector 73 are inserted when the two drill rods 6 are connected, enabling communication connection and ensuring good communication at depth, thus increasing the reliability of deep exploration.

[0024] A conical soil discharge cover 2 is installed on multiple hydraulic cylinders 1. A drill hole 21 is opened in the center of the conical soil discharge cover 2, and a drill rod 6 is inserted into the drill hole 21. Multiple soil discharge grooves 22 are symmetrically opened on the outer side wall of the conical soil discharge cover 2.

[0025] The rotating soil-discharging spiral blade 64 discharges the broken soil in the exploration hole upwards and along the borehole 21 to the top of the conical soil-discharging cover 2. The broken soil then loses its surrounding restraint and collapses into the more inclined soil-discharging trough 22, allowing it to slide onto the ground. This makes it easier for workers to remove the discharged broken soil and prevents it from falling back into the exploration hole and affecting the operation of the drill rod 6.

[0026] A drive motor 3 is installed at the bottom of the drilling support 12. The shaft of the drive motor 3 extends to the top of the drilling support 12 and a drive gear 31 is fixedly installed thereon. A drilling gear 41 is fixedly sleeved on the outer side wall of the pressure sleeve 4. The drilling gear 41 and the drive gear 31 cooperate with each other.

[0027] The female connector 71 is fixed on the end wall of the plug 61, the male connector 73 is fixed on the bottom wall of the slot 62, and the upper end of the plug rod 81 is equipped with a connecting spring 84 sleeved on the corrugated connecting tube 82 and the detection female connector 83. The upper end of the connecting spring 84 is fixed on the bottom wall of the slot 62.

[0028] When the drive motor 3 is working, it can drive the drive gear 31 to rotate. The drive gear 31 drives the pressure sleeve 4 to rotate through the drilling gear 41. Then the pressure sleeve 4 can drive the connecting female head 71 to rotate through the drive locking pin 42 and the right-angle locking groove 72. Then the connecting female head 71 can drive the drill rod 6 to rotate.

[0029] The rotation of the drill rod 6 drives the drill bit 8 to rotate via the connecting spring 84. The rotation of the drill bit 8 enables frictional drilling of the ground soil and gravel. During drilling, the drill bit 8 is pressed against the ground by the drill rod 6, which compresses the connecting spring 84. This causes the insertion rod 81 to be inserted into the slot 62, placing the detection probe 85 in the slot 62. This prevents the detection probe 85 from being damaged by friction with the gravel in the exploration hole during drilling, thus protecting the detection probe 85 from damage and making it more reliable.

[0030] When drilling reaches a suitable depth, stop drilling. While keeping the drill rod 6 rotating, raise the pressure sleeve 4 a short distance. This allows the pressure sleeve 4 to pull the drill rod 6 upward through the drive locking pin 42 and the right-angle locking groove 72. This causes the drill bit 8 to lose pressure, and the connecting spring 84 to rebound, causing the drill bit 8 to separate from the drill rod 6. This causes the insertion rod 81 to move out of the slot 62, exposing the detection probe 85 inside the exploration hole. This allows the detection probe 85 to detect the temperature inside the exploration hole, enabling geothermal exploration in deeper areas.

[0031] A detection host 5 is fixedly installed on the drilling support 12. A detection male connector 51 is installed on the detection host 5, and the detection male connector 51 is matched with the connecting female connector 71.

[0032] Once the detection probe 85 is exposed inside the exploration hole, the drill rod 6 stops rotating, and the detection male head 51 is inserted into the upper connecting female head 71. The detection male head 51 is then connected to the detection probe 85 through the connecting female head 71, communication wire 7, connecting male head 73, and detection female head 83, enabling the detection host 5 to quickly detect the temperature at the bottom of the exploration hole, making operation more convenient.

[0033] Multiple friction posts 86 are symmetrically and helically installed at equal intervals on the outer side wall of the drill bit 8. Multiple guide grooves 87 are symmetrically and helically opened at equal intervals on the outer side wall of the drill bit 8. Each guide groove 87 is located between two adjacent friction posts 86 at the same height.

[0034] The rotating drill bit 8 grinds and breaks up the surface soil and gravel through the friction column 86. Then, while rotating, the broken soil and gravel are discharged above the drill bit 8 through the guide groove 87, so that the soil discharge spiral blade 64 can discharge the broken soil and gravel out of the exploration hole, preventing the drill bit 8 from getting stuck in the ground and making it more reliable.

[0035] When using this invention, a suitable detection location is selected, and the installation location of the hydraulic cylinder 1 is dug down to a certain depth for fixation. Then, the external hydraulic equipment is controlled to make the hydraulic cylinder 1 drive the hydraulic adjusting rod 11 to move upward. Then, the drill bit 8 is passed through the drill hole 21 and placed on the ground, and the plug 61 at the upper end of the drill rod 6 is inserted into the pressure sleeve 4, and the drive locking pin 42 in the pressure sleeve 4 is inserted into the right angle locking groove 72. The drive motor 3 is controlled to rotate and the hydraulic adjusting rod 11 is controlled to move downward slowly. The drive motor 3 drives the pressure sleeve 4 to rotate through the drive gear 31 and the drilling gear 41. The pressure sleeve 4 drives the connecting female head 71 and the drill rod 6 to rotate through the drive locking pin 42 and the right angle locking groove 72, and the drive locking pin 42 and the right angle locking groove 72 are locked. The rotation of the drill rod 6 drives the drill bit 8 to rotate through the connecting spring 84 and the plug rod 81.

[0036] The drill bit 8 rotates and grinds and breaks up the surface soil and gravel through the friction column 86. Then, while rotating, the broken soil and gravel are discharged above the drill bit 8 through the guide groove 87. The drill rod 6 rotates and drives the soil discharge auger 64 to rotate, so that the soil discharge auger 64 discharges the soil and gravel above the drill bit 8 upward. The discharged soil and gravel are discharged along the borehole 21 to the top of the conical soil discharge cover 2, collapse into the soil discharge trough 22, and slide to the bottom surface for manual or external mechanical cleaning.

[0037] When the drill rod 6 drills to a certain depth, the drive motor 3 is reversed by a certain angle, causing the pressure sleeve 4 to reverse. This unlocks the drive locking pin 42 and the right-angle locking groove 72. The hydraulic adjusting rod 11 is then controlled to move upward, causing the pressure sleeve 4 to move upward and disengage from the plug 61. The slot 62 of the new drill rod 6 is fitted onto the plug 61 of the lower drill rod 6, and the plug 61 of the new drill rod 6 is inserted into the pressure sleeve 4. Then, the pressure sleeve 4 is slowly moved downward and rotated, locking the pressure sleeve 4 with the new drill rod 6 and locking the new drill rod 6 with the lower drill rod 6. The male connector 73 on the new drill rod 6 is then inserted into the female connector 71 on the lower drill rod 6.

[0038] When the drilling depth reaches the preset position, keep the drill rod 6 rotating, and then control the pressure sleeve 4 to rise one end, which will reset the connecting spring 84 and separate the drill bit 8 from the drill rod 6, causing the plug rod 81 to disengage from the slot 62, thus exposing the detection probe 85 in the exploration hole. Then control the pressure sleeve 4 to stop rotating, and the drill rod 6 will stop rotating. Insert the detection male head 51 into the connecting female head 71 on the uppermost drill rod 6, so that the detection probe 85 is connected to the detection host 5 through the detection female head 83, the connecting male head 73, the communication wire 7, the connecting female head 71, and the detection male head 51, so that the detection host 5 can quickly and accurately detect the geothermal conditions of the current depth area.

[0039] After the test is completed, the pressure sleeve 4 and drill rod 6 continue to rotate and lift upwards, and remove multiple drill rods 6 one by one until all drill rods 6 are removed. During the removal of drill rods 6, the pressure sleeve 4 needs to reverse and move its angle multiple times to unlock the connection between the pressure sleeve 4 and the drill rod 6, as well as the connection between drill rods 6.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A geothermal detection device for geological exploration, comprising a plurality of symmetrically arranged hydraulic cylinders (1), characterized in that, Each hydraulic cylinder (1) has a hydraulic adjusting rod (11) sealed and slidably inserted at its upper end. A drilling support (12) is mounted on the upper ends of multiple hydraulic adjusting rods (11). A pressure sleeve (4) is centrally and rotatably inserted on the drilling support (12). A drill rod (6) is inserted at the lower end of the pressure sleeve (4). A soil-discharging auger (64) is mounted on the outer wall of the drill rod (6). A drill bit (8) is mounted at the lower end of the drill rod (6). The drill rod (6) includes a plug (61) and a slot (62). A wire hole (63) connecting to the slot (62) is opened on the end wall of the plug (61). A communication wire (7) is installed in the wire hole (63). The two ends of the communication wire (7) extend to the outer side of the plug (61) and into the slot (62), respectively, and are respectively fitted with a female connector (71) and a male connector (73). Multiple right-angle locking slots (72) are symmetrically opened on the outer side wall of the connecting female head (71). Multiple connecting locking pins (65) are symmetrically fixed on the inner wall of the slot (62). Multiple driving locking pins (42) are symmetrically fixed on the inner wall of the pressure sleeve (4). The multiple driving locking pins (42) are slidably inserted into the corresponding multiple right-angle locking slots (72). The drill bit (8) includes a plug rod (81) slidably inserted into the slot (62). Multiple detection probes (85) are symmetrically embedded on the outer side wall of the plug rod (81). A corrugated connecting pipe (82) is installed at the upper end of the plug rod (81). A detection female head (83) is installed at the upper end of the corrugated connecting pipe (82). Each detection probe (85) is electrically connected to the detection female head (83). The connecting male head (73) is inserted into the detection female head (83). The female connector (71) is fixed on the end wall of the plug (61), the male connector (73) is fixed on the bottom wall of the slot (62), and the upper end of the plug rod (81) is fitted with a connecting spring (84) sleeved on the corrugated connecting tube (82) and the detection female connector (83). The upper end of the connecting spring (84) is fixed on the bottom wall of the slot (62).

2. The geothermal detection device for geological exploration according to claim 1, characterized in that, A conical soil discharge cover (2) is installed on multiple hydraulic cylinders (1). A drill hole (21) is opened in the center of the conical soil discharge cover (2). The drill rod (6) is inserted into the drill hole (21). Multiple soil discharge grooves (22) are symmetrically opened on the outer side wall of the conical soil discharge cover (2).

3. The geothermal detection device for geological exploration according to claim 1, characterized in that, The bottom of the drilling support (12) is equipped with a drive motor (3), the shaft of the drive motor (3) extends to the top of the drilling support (12) and a drive gear (31) is fixedly installed thereon, and a drilling gear (41) is fixedly sleeved on the outer side wall of the pressure sleeve (4), and the drilling gear (41) and the drive gear (31) cooperate with each other.

4. The geothermal detection device for geological exploration according to claim 1, characterized in that, The drilling support (12) is fixedly installed with a testing host (5), and the testing host (5) is equipped with a testing male head (51), which is matched with the connecting female head (71).

5. A geothermal detection device for geological exploration according to claim 1, characterized in that, The drill bit (8) has multiple friction columns (86) that are symmetrically and evenly spirally installed on its outer side wall. The drill bit (8) also has multiple guide grooves (87) that are symmetrically and evenly spirally opened on its outer side wall. Each guide groove (87) is located between two adjacent friction columns (86) at the same height.

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