Geothermal detection device for geological exploration

Abstract

The utility model discloses a geologic exploration terrestrial heat detection device which comprises a base, a lifting seat is movably arranged on the base, a drill rod is arranged at the bottom of the lifting seat, the upper end of the drill rod is in transmission connection with a first motor, a detection rod is arranged in the drill rod, and the detection rod is in threaded fit with the drill rod. The outer side wall, close to the lower end, of the detection rod is slidably attached to the inner side wall of the drill rod, a geothermal detection head is embedded in the outer side wall, close to the lower end, of the detection rod, and a second motor in transmission connection with the upper end of the detection rod is movably arranged at the upper end of the drill rod. According to the scheme, the geothermal detection head is hidden on the detection rod in the drill rod, so that the geothermal detection head is effectively prevented from being extruded and damaged in the whole drilling process; when the lower end of the drill rod reaches a preset depth, the detection rod is driven by the second motor to screw downwards, so that the geothermal detection head is exposed and in-situ geothermal detection is carried out; meanwhile, in the downward screwing process of the detection rod, underground soil can be collected through a plurality of sampling grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of geothermal detection, in particular to a geothermal detection device for geological exploration. Background Art

[0002] Geothermal energy refers to the natural outward heat flow from the earth's molten rock, which is a thermal energy resource from the earth's interior. The earth's interior is a huge heat reservoir. For example, the temperature of lava ejected by volcanoes is as high as 1200-1300 degrees, and the temperature of natural hot springs is mostly above 60 degrees, and some are even as high as 100-140 degrees. All this heat from the earth's interior can be converted into energy. When this heat seeps out of the surface, it becomes a geothermal resource.

[0003] At present, geothermal detection devices are needed when searching for geothermal resources. Currently, most geothermal detection devices used in geological exploration generally detect by measuring infrared on the surface through sensors. However, the infrared generated by the heat emitted by some geothermal resources cannot be transmitted to the ground due to the obstruction of the surface soil, making it impossible for ordinary detectors to detect it and losing the opportunity to exploit geothermal resources. At the same time, when detecting geothermal energy, it is necessary to collect underground minerals to analyze the content of underground minerals.

[0004] When drilling is used for detection, drilling is generally performed using a drill rod, and then the detection equipment is inserted into the borehole for detection. However, for soft soil layers, the borehole is prone to collapse and get lost, thus affecting the detection effect. If the detection equipment is installed on the drill rod and directly drilled into the ground for detection, the detection equipment is prone to damage during the drilling process, thereby affecting the service life of the detection equipment. Therefore, there is an urgent need for a geothermal detection device that can safely send the detection head into the ground. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a geothermal detection device for geological exploration, which solves the problems of great detection difficulty and poor effect of the prior geothermal detection device.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A geothermal detection device for geological exploration is provided, which includes a base, a lifting seat is movably arranged on the base, a drill rod is arranged at the bottom of the lifting seat, the upper end of the drill rod is transmission-connected to a first motor, a detection rod is arranged in the drill rod, and the detection rod is threadedly matched with the drill rod, the outer wall of the detection rod near its lower end is slidably fitted with the inner wall of the drill rod, and a geothermal detection head is embedded on the outer wall of the detection rod near its lower end, and a second motor transmission-connected to the upper end of the detection rod is movably arranged at the upper end of the drill rod.

[0008] Furthermore, an annular sinking platform is provided at the upper end of the drill rod, a transmission gear is provided at the end of the annular sinking platform, a driving gear meshing with the transmission gear is provided on the rotating shaft of the first motor, two thrust ball bearings are provided on the annular sinking platform, a deep groove ball bearing is provided on the annular sinking platform located between the two thrust ball bearings, the deep groove ball bearing and the two thrust ball bearings are fixed on the lifting seat, and the outer rotating ends of the two thrust ball bearings are respectively abutted against the transmission gear and the annular table surface of the annular sinking platform.

[0009] Furthermore, an annular groove is provided on the outer side wall of the detection rod near the lower end thereof, and a plurality of arc-shaped plates are arranged at intervals in the circumferential direction of the annular groove, and the plurality of arc-shaped plates divide the annular groove into a plurality of sampling grooves.

[0010] Furthermore, a vertical screw rod matched with the lifting seat thread and a plurality of vertical guide rails matched with the lifting seat in a sliding manner are arranged on the base, and the upper end of the vertical screw rod is drivingly connected with the driving motor.

[0011] Furthermore, a guide column is provided at the upper end of the drill rod, and the second motor is slidably matched with the guide column through the sleeve rod.

[0012] Furthermore, the lower ends of the drill rod and the detection rod together form a cone head for facilitating drilling.

[0013] Furthermore, a plurality of legs are horizontally hinged around the bottom of the base, and the ends of the legs are provided with lifting cylinders extending downward, and the telescopic ends of the lifting cylinders are provided with support blocks.

[0014] The beneficial effects of the utility model are:

[0015] 1. This solution hides the geothermal detection head on the detection rod inside the drill pipe, effectively avoiding the extrusion damage of the geothermal detection head during the entire drilling process; when the lower end of the drill pipe reaches the preset depth, the drill pipe stops, and the second motor drives the detection rod to rotate downward, so that the lower end of the detection rod extends out of the drill pipe, thereby exposing the geothermal detection head and performing in-situ geothermal detection; at the same time, during the downward rotation of the detection rod, the underground soil can be collected through a number of sampling slots.

[0016] 2. This solution enables the drill pipe to rotate smoothly on the lifting seat through the cooperation of the deep groove ball bearing and two thrust ball bearings. At the same time, the lifting seat can bear the radial load and axial load of the drill pipe through the deep groove ball bearing and the thrust ball bearing.

[0017] 3. This solution uses a number of legs to stably support the base, and the lifting cylinder can level and align the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a geothermal detection device for geological exploration.

[0019] Figure 2 It is a schematic diagram of the structure of each component on the lifting seat.

[0020] Figure 3 for Figure 2 sectional view of .

[0021] Figure 4 It is a schematic diagram of the structure of the lower end of the detection rod.

[0022] Figure 5 for Figure 4 Cross-sectional view of the AA region.

[0023] Among them, 1. base, 2. lifting seat, 3. drill rod, 4. first motor, 5. detection rod, 6. geothermal detection head, 7. second motor, 8. annular sinker, 9. transmission gear, 10. drive gear, 11. thrust ball bearing, 12. deep groove ball bearing, 13. annular groove, 14. arc plate, 15. sampling groove, 16. vertical screw, 17. vertical guide rail, 18. drive motor, 19. guide column, 20. sleeve rod, 21. cone head, 22. support leg, 23. lifting cylinder, 24. support block. DETAILED DESCRIPTION

[0024] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0025] like Figures 1 to 5 As shown, the geological exploration geothermal detection device of this scheme includes a base 1 and a lifting base 2. The base 1 is provided with a vertical screw rod 16 threadedly matched with the lifting base 2 and a plurality of vertical guide rails 17 slidingly matched with the lifting base 2. The upper end of the vertical screw rod 16 is transmission-connected to a driving motor 18.

[0026] A drill rod 3 is provided at the bottom of the lifting seat 2, and the upper end of the drill rod 3 is transmission-connected to the first motor 4. A detection rod 5 is provided in the drill rod 3, and the detection rod 5 is threadedly matched with the drill rod 3. The upper end of the drill rod 3 is movably provided with a second motor 7 transmission-connected to the upper end of the detection rod 5. During implementation, a guide column 19 is provided at the upper end of the drill rod 3, and the second motor 7 slides with the guide column 19 through a sleeve rod 20; the lower ends of the drill rod 3 and the detection rod 5 jointly constitute a cone head 21 for facilitating drilling; the outer side wall of the detection rod 5 near its lower end slides in contact with the inner side wall of the drill rod 3, and a geothermal detection head 6 and an annular groove 13 are embedded on the outer side wall of the detection rod 5 near its lower end, and a plurality of arc plates 14 are arranged at intervals on the circumference of the annular groove 13, and the annular groove 13 is divided into a plurality of sampling grooves 15 by the plurality of arc plates 14.

[0027] This solution can realize the screwing of the drill rod 3 through the cooperation of the driving motor 18 and the first motor 4, thereby realizing its drilling function, and the geothermal detection head 6 is hidden on the detection rod 5 inside the drill rod 3, effectively avoiding the extrusion damage of the geothermal detection head 6 during the entire drilling process; and when the lower end of the drill rod 3 reaches the preset depth, the drill rod 3 can be stopped, and the detection rod 5 can be driven by the second motor 7 to screw downward, so that the lower end of the detection rod 5 extends out of the drill rod 3, thereby exposing the geothermal detection head 6 and performing in-situ geothermal detection; at the same time, during the downward screwing of the detection rod 5, the underground soil can be collected through a plurality of sampling slots 15.

[0028] During the design, an annular sinker 8 is provided at the upper end of the drill rod 3, and a transmission gear 9 is provided at the end of the annular sinker 8. A driving gear 10 meshing with the transmission gear 9 is provided on the rotating shaft of the first motor 4. Two thrust ball bearings 11 are sleeved on the annular sinker 8, and a deep groove ball bearing 12 is sleeved on the annular sinker 8 located between the two thrust ball bearings 11. The deep groove ball bearings 12 and the two thrust ball bearings 11 are fixed on the lifting seat 2, and the outer rotating ends of the two thrust ball bearings 11 are respectively abutted against the transmission gear 9 and the annular table surface of the annular sinker 8. This arrangement allows the drill rod 3 to rotate smoothly on the lifting seat 2, and at the same time, the lifting seat 2 can bear the radial load and axial load of the drill rod 3 through the deep groove ball bearings 12 and the thrust ball bearings 11.

[0029] A plurality of legs 22 are horizontally hinged around the bottom of the base 1, and a downwardly extending lifting cylinder 23 is provided at the end of the leg 22, and a support block 24 is provided at the telescopic end of the lifting cylinder 23; this scheme stably supports the base 1 through a plurality of legs 22, and at the same time, the lifting cylinder 23 can level and align the base 1.

Claims

1. A geothermal detection device for geological exploration, characterized in that: It includes a base, on which a lifting seat is movably arranged, a drill rod is arranged at the bottom of the lifting seat, the upper end of the drill rod is transmission-connected to a first motor, a detection rod is arranged in the drill rod, and the detection rod is threadedly matched with the drill rod, the outer wall of the detection rod near its lower end is slidably fitted with the inner wall of the drill rod, and a geothermal detection head is embedded on the outer wall of the detection rod near its lower end, and a second motor transmission-connected to the upper end of the detection rod is movably arranged at the upper end of the drill rod.

2. The geothermal detection device for geological exploration according to claim 1, characterized in that: An annular sinking platform is provided at the upper end of the drill rod, a transmission gear is provided at the end of the annular sinking platform, a driving gear meshing with the transmission gear is provided on the rotating shaft of the first motor, two thrust ball bearings are provided on the annular sinking platform, a deep groove ball bearing is provided on the annular sinking platform located between the two thrust ball bearings, the deep groove ball bearing and the two thrust ball bearings are fixed on the lifting seat, and the outer rotating ends of the two thrust ball bearings are respectively abutted against the transmission gear and the annular table surface of the annular sinking platform.

3. The geothermal detection device for geological exploration according to claim 1, characterized in that: An annular groove is provided on the outer side wall of the detection rod near the lower end thereof, and a plurality of arc plates are arranged at intervals in the circumferential direction of the annular groove, and the plurality of arc plates divide the annular groove into a plurality of sampling grooves.

4. The geothermal detection device for geological exploration according to claim 1, characterized in that: The base is provided with a vertical screw rod matched with the lifting seat thread and a plurality of vertical guide rails matched with the lifting seat in a sliding manner. The upper end of the vertical screw rod is transmission-connected with the driving motor.

5. The geothermal detection device for geological exploration according to claim 1, characterized in that: A guide column is arranged at the upper end of the drill rod, and the second motor is slidably matched with the guide column through a sleeve rod.

6. The geothermal detection device for geological exploration according to claim 1, characterized in that: The lower ends of the drill rod and the detection rod together form a cone head for drilling.

7. The geothermal detection device for geological exploration according to claim 1, characterized in that: A plurality of legs are horizontally hinged around the bottom of the base, and the ends of the legs are provided with lifting cylinders extending downward, and the telescopic ends of the lifting cylinders are provided with support blocks.

Images