Downhole explosion-proof rock straight push drilling temperature detection integrated device

Abstract

The application belongs to the technical field of geotechnical engineering, and particularly relates to a downhole explosion-proof straight pushing rock drilling and temperature detection integrated device, which comprises a driving assembly, a linkage assembly and a drilling assembly. The linkage assembly comprises a first cylinder and a detection mechanism. One end of the first cylinder is of an open structure, and the other end of the first cylinder is of a closed structure. A second cylinder is slidably connected to the outer wall of the first cylinder. The driving assembly drives the drilling assembly to rotate, and two handles are used to push the drilling assembly during the process of drilling into the rock layer, so that the straight pushing effect during the process of drilling into the downhole rock layer is realized. The detection mechanism is used to integrate the explosion-proof drilling and the straight pushing detection, and after the outer wall of the drilling hole, the drilling assembly can be separated from the linkage assembly, which is used for the detection of the temperature of the inner wall of the cavity of the downhole rock layer, and the integrated operation efficiency of the downhole rock temperature detection is improved.

Description

Technical Field

[0001] This invention belongs to the field of geotechnical engineering technology, and specifically relates to an integrated device for detecting rock temperature in downhole explosion-proof direct-drive drilling. Background Technology

[0002] During the inspection process, it is necessary to sample the rocks, and even to knock down rocks at the target location for sampling. This process requires operators to use sampling instruments. Existing portable rock sampling instruments generally consist of a counterweight, a drill rod, and a handle. The drill rod is welded to the counterweight, allowing the operator to carry and transport them. They are typically used in environments without an external power source.

[0003] A search revealed that Chinese patent application CN202121141626.6, filed on May 23, 2021, discloses a portable rock sampling device. This device includes a counterweight, a handle mounted on the bottom of the counterweight, and a sampling rod. The counterweight has an internal storage assembly for holding the sampling rod. This assembly includes a storage slot formed inside the counterweight, through which the sampling rod passes and is movably connected. This application offers greater portability.

[0004] However, the equipment still has the following drawbacks: although it is more portable, the brittle rocks downhole store elastic energy, which can easily cause the rocks to explode during the process of drilling directly into the rocks downhole. Moreover, simple sampling cannot obtain the temperature environment of the inner wall of the sampled rock cavity, thus bringing inconvenience to the detection personnel. Summary of the Invention

[0005] To address the above problems, this invention provides an integrated downhole explosion-proof direct-drive drilling rock temperature detection device, comprising a drive assembly, a linkage assembly, and a drilling assembly; The linkage component includes a first cylinder and a detection mechanism; One end of the first cylinder is an open structure, and the other end of the first cylinder is a closed structure. A second cylinder is slidably connected to the outer wall of the first cylinder. An extension ring is fixedly connected to the outer wall of the second cylinder on the side near the port of the first cylinder. The inner wall of the extension ring does not contact the outer wall of the first cylinder. Two sets of hollow sliding cavities are opened on the outer wall of the first cylinder. External thread teeth are provided on the outer wall of the first cylinder, and the external thread teeth surround the two sets of hollow sliding cavities. The external thread teeth are threadedly connected to the inner wall of the second cylinder. The detection mechanism is rotatably connected to the inner wall of the first cylinder. The drive assembly is a circular ring structure, and handles are symmetrically fixedly connected to both sides of the outer wall of the drive assembly. One end of the first cylinder is rotatably connected to the inner wall of the drive assembly, and the drilling assembly is rotatably connected to the other end of the first cylinder. The extension ring is movably engaged with the drilling assembly.

[0006] Furthermore, the driving component includes a limiting ring; the inner wall of the limiting ring is provided with an external gear ring, and the center of the central axis of the external gear ring coincides with the center of the central axis of the limiting ring; a first bearing is fixedly connected to one side of the outer wall of the limiting ring; a first inner ring is rotatably connected to the inner wall of the first bearing; and one side wall of the first inner ring is rotatably connected to the external gear ring.

[0007] Furthermore, a second bearing is fixedly connected to the outer wall of the other side of the limiting ring, a second inner ring is rotatably connected to the inner wall of the second bearing, and one side wall of the second inner ring is rotatably connected to the outer gear ring. A drive gear is meshed with the outer wall of the outer gear ring, and the output end of the first motor is drivenly connected at the center of the central axis of the drive gear. A limiting pin is fixedly connected to the outer wall of the first motor, and the end of the limiting pin is fixedly connected to the inner wall of the limiting ring.

[0008] Furthermore, the detection mechanism includes an adjustment unit, a water storage cylinder, and a detection unit; an air collecting shell is fixedly connected to the outer wall of the water storage cylinder, and a limiting plate is fixedly connected to the end of the water storage cylinder and the side near the adjustment unit, with an internal threaded hole at the center of the central axis of the limiting plate.

[0009] Furthermore, the outer wall of the air collecting housing, away from the limiting plate, is provided with several sets of through holes. The several sets of through holes are arranged in a circular array with the central axis of the air collecting housing as the center. A miniature high-pressure air pump is fixedly connected to the outer wall of the air collecting housing, and the output end of the miniature high-pressure air pump is connected to the inner wall of the air collecting housing.

[0010] Furthermore, the detection unit is fixedly connected to the outer wall of the water storage cylinder, and one side wall of the detection unit is fixedly connected to the outer wall of the air collecting shell. A waterproof end cap is threadedly connected to the end of the water storage cylinder and the side away from the limiting plate. A high-pressure atomizing nozzle is embedded in the waterproof end cap, and a micro water pump is provided on the side wall of the high-pressure atomizing nozzle near the water storage cylinder.

[0011] Furthermore, the adjusting part includes a third cylinder; one end of the third cylinder is rotatably connected to a third bearing, and the other end of the third cylinder is rotatably connected to a fourth bearing. The outer walls of both the third and fourth bearings are rotatably connected to the inner wall of the first cylinder. A mounting plate is fixedly connected to the outer wall of the fourth bearing. A compression spring is fixedly connected to the outer wall of the mounting plate near the third cylinder, and the central axis of the compression spring coincides with the central axis of the mounting plate. A first electric push rod is also fixedly connected to the outer wall of the mounting plate near the third cylinder. The output end of the first electric push rod is driven by a second motor, and the output end of the second motor is driven by a lead screw. The compression spring is sleeved on the outside of the first electric push rod, the second motor, and the lead screw, and the other end of the compression spring is fixedly connected to the outer wall of the limiting plate. The end of the lead screw is threadedly connected to and used in conjunction with an internal threaded hole on the limiting plate.

[0012] Furthermore, the detection unit includes a fan-shaped annular shell; an assembly hole is provided at the center of the fan-shaped annular shell, and the inner wall of the assembly hole is fixedly connected to the outer wall of the water storage cylinder. Four sets of fourth cylinders are fixedly connected to the inner wall of the fan-shaped annular shell, and the four sets of fourth cylinders are arranged in a circular array with the central axis of the fan-shaped annular shell as the center.

[0013] Furthermore, temperature detection probes are slidably connected to the inner walls of the four sets of fourth cylinders, and linkage rods are fixedly connected to the outer walls of the four sets of temperature detection probes. A sliding groove is opened on the outer wall of the fourth cylinder, and the linkage rod is slidably connected to the inner wall of the sliding groove. A miniature electric push rod is fixedly connected to the inner wall of the fan-shaped shell near the assembly hole, and the output end of the miniature electric push rod is connected to the linkage rod in a transmission manner.

[0014] Furthermore, the drilling assembly includes a docking ring and a drill bit; the top end of the docking ring is fixedly connected to the bottom end of the drill bit, and the drill bit is conical and hollow. The surface of the drill bit has seepage holes that communicate with the inner wall of the docking ring. Two sets of linkage arms are symmetrically fixedly connected to both sides of the inner wall of the docking ring. A pivot pin is rotatably connected to the side wall of each set of linkage arms that is far apart from each other. Both sets of linkage arms are slidably connected to the inner wall of the hollow cavity. The pivot pin is rotatably connected to the inner wall of the first cylinder. A docking groove is provided at the bottom end of the docking ring, and the docking groove is movably engaged with and cooperates with the extension ring.

[0015] The beneficial effects of this invention are: 1. The drilling component is rotated by the drive component, and the operator pushes the drilling component during the drilling process by using two sets of handles, so as to achieve a direct push effect during the drilling of the downhole rock layer. The detection mechanism enables the drilling component to integrate explosion-proof drilling and direct push detection. After the outer wall of the borehole, the drilling component can be adjusted to separate from the linkage component for the detection of the temperature of the inner wall of the cavity of the downhole rock layer, which improves the integrated operation efficiency of downhole rock temperature detection.

[0016] 2. Several sets of seepage holes are opened on the surface of the drill bit, and high-pressure atomizing nozzles spray clean water near the seepage holes. Utilizing the centrifugal force generated by the rotation of the drill bit, the clean water near the seepage holes is thrown out and adheres to the inner wall of the borehole in the underground rock. This changes the physical and mechanical properties of the rock strata, creates weak surfaces within the underground rock strata, and softens them, thereby reducing the strength of the underground rock strata and increasing the amount of plastic deformation. This provides an explosion-proof function during direct drilling into the underground rock strata and improves the safety of underground rock drilling.

[0017] 3. By using a miniature electric push rod to move the linkage rod, the temperature detection probe slides on the inner wall of the fourth cylinder while the end of the temperature detection probe is moved to fit against the inner wall of the cavity in the downhole rock layer. This is used to detect the temperature at different locations on the inner wall of the cavity in the downhole rock layer, thus improving the range of downhole rock temperature detection.

[0018] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the integrated rock temperature detection device according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the integrated rock temperature detection device according to an embodiment of the present invention is shown; Figure 3 An exploded view of the structure of the driving component according to an embodiment of the present invention is shown; Figure 4A schematic diagram of the connection between the external gear ring and the driving gear in an embodiment of the present invention is shown; Figure 5 A schematic diagram of the linkage component according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the detection mechanism according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the structure of the adjustment section according to an embodiment of the present invention is shown; Figure 8 A cross-sectional view of the detection unit according to an embodiment of the present invention is shown; Figure 9 A schematic diagram of the drilling assembly according to an embodiment of the present invention is shown; Figure 10 A top view of the drilling assembly according to an embodiment of the present invention is shown.

[0021] In the diagram: 1. Drive assembly; 11. Limiting ring; 12. External gear ring; 13. First bearing; 14. First inner ring; 15. Second bearing; 16. Second inner ring; 17. Drive gear; 18. First motor; 19. Limiting pin; 2. Handle; 3. Linkage assembly; 31. First cylinder; 32. Second cylinder; 33. Extension ring; 34. Hollow slide cavity; 35. External threaded tooth; 36. Detection mechanism; 361. Adjustment part; 3611. Third cylinder; 3612. Third bearing; 3613. Fourth bearing; 3614. Mounting plate; 3615. Compression spring; 361 6. First electric push rod; 3617. Second motor; 3618. Lead screw; 362. Water storage cylinder; 363. Air collection shell; 364. Limiting plate; 365. Through hole; 366. Detection section; 3661. Fan-shaped annular shell; 3662. Assembly hole; 3663. Fourth cylinder; 3664. Temperature detection probe; 3665. Linkage rod; 3666. Miniature electric push rod; 367. Waterproof end cap; 368. High-pressure atomizing nozzle; 4. Drilling assembly; 41. Docking ring; 42. Drill bit; 43. Water seepage hole; 44. Linkage arm; 45. Shaft pin support; 46. Docking groove. Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] This invention provides an integrated downhole explosion-proof direct-drive drilling rock temperature detection device, comprising a drive assembly 1, a linkage assembly 3, and a drilling assembly 4; exemplarily, such as... Figure 1 and Figure 2 As shown.

[0024] The drive component 1 has a circular ring structure, and handles 2 are symmetrically fixedly connected to both sides of the outer wall of the drive component 1. One end of the linkage component 3 is rotatably connected to the inner wall of the drive component 1, and the drilling component 4 is rotatably connected to the other end of the linkage component 3. The linkage component 3 and the drilling component 4 are movably engaged.

[0025] Specifically, the drive component 1 is used to drive the linkage component 3 and the drilling component 4 to rotate, so that the drilling component 4 can drill into the rock layer in the well. The two sets of handles 2 are used to allow the operator to push the drilling component 4 during the drilling process, so as to achieve a direct push effect during the drilling process. During the process of drilling into the rock layer, the linkage component 3 and the drilling component 4 can inject high-pressure water into the drilling component 4 to change the physical and mechanical properties of the rock layer, create a weak surface inside the rock layer, and soften it to reduce the strength of the rock layer and increase the amount of plastic deformation. This is used to achieve the explosion-proof function during the direct drilling into the rock layer. The separation of the drilling component 4 from the end of the linkage component 3 exposes the end of the linkage component 3 to the outside, and the extension and retraction adjustment of the end of the linkage component 3 is used to detect the temperature of the inner wall of the cavity in the downhole rock layer.

[0026] The drive component 1 includes a limiting ring 11; for example, such as Figure 3 and Figure 4 As shown.

[0027] The inner wall of the limiting ring 11 is provided with an external gear ring 12, and the center of the central axis of the external gear ring 12 coincides with the center of the central axis of the limiting ring 11. A first bearing 13 is fixedly connected to one side of the outer wall of the limiting ring 11. A first inner ring 14 is rotatably connected to the inner wall of the first bearing 13, and one side wall of the first inner ring 14 is rotatably connected to the external gear ring 12. A second bearing 15 is fixedly connected to the other side of the outer wall of the limiting ring 11. A second inner ring 16 is rotatably connected to the inner wall of the second bearing 15, and one side wall of the second inner ring 16 is rotatably connected to the external gear ring 12. A drive gear 17 is meshed with the outer wall of the external gear ring 12. The output end of a first motor 18 is drivenly connected to the center of the central axis of the drive gear 17. A limiting pin 19 is fixedly connected to the outer wall of the first motor 18, and the end of the limiting pin 19 is fixedly connected to the inner wall of the limiting ring 11.

[0028] Furthermore, the central axes of the outer gear ring 12, the first inner ring 14, and the second inner ring 16 coincide, and the inner diameters of the outer gear ring 12, the first inner ring 14, and the second inner ring 16 are the same. The inner walls of the outer gear ring 12, the first inner ring 14, and the second inner ring 16 are all rotatably connected to the end of the linkage assembly 3.

[0029] Specifically, the first motor 18 drives the outer gear ring 12 to rotate, causing the outer gear ring 12 to drive one end of the linkage component 3 to rotate synchronously. At the same time, the drive gear 17 drives the outer gear ring 12 to mesh and connect, thereby achieving deceleration and torque increase to improve the drilling strength of the drilling component 4. The first bearing 13 and the second bearing 15 are respectively fixedly connected to the outer walls of the limiting ring 11 on both sides, and the outer gear ring 12 is rotatably connected to the outer walls of the first inner ring 14 and the second inner ring 16, so that the outer gear ring 12 can rotate stably within the limiting ring 11.

[0030] The linkage component 3 includes a first cylinder 31 and a detection mechanism 36; for example, such as Figure 5 As shown.

[0031] One end of the first cylinder 31 is an open structure, and the other end of the first cylinder 31 is a closed structure. The outer wall of the first cylinder 31 is slidably connected to the second cylinder 32. An extension ring 33 is fixedly connected to the outer wall of the second cylinder 32 on the side near the port of the first cylinder 31. The inner wall of the extension ring 33 does not contact the outer wall of the first cylinder 31. The outer wall of the first cylinder 31 is provided with two sets of hollow sliding cavities 34. The outer wall of the first cylinder 31 is provided with external thread teeth 35, and the external thread teeth 35 surround the two sets of hollow sliding cavities 34. The external thread teeth 35 are threadedly connected to the inner wall of the second cylinder 32. The detection mechanism 36 is rotatably connected to the inner wall of the first cylinder 31.

[0032] The detection mechanism 36 includes an adjustment unit 361, a water storage cylinder 362, and a detection unit 366; for example, such as Figure 6 As shown.

[0033] A gas collecting shell 363 is fixedly connected to the outer wall of the water storage cylinder 362. A limiting plate 364 is fixedly connected to the end of the water storage cylinder 362, near the adjusting part 361. An internal threaded hole is provided at the center of the central axis of the limiting plate 364. A plurality of through holes 365 are provided on the outer wall of the gas collecting shell 363, away from the limiting plate 364. The plurality of through holes 365 are arranged in a circular array with the central axis of the gas collecting shell 363 as the center. A miniature high-pressure air pump is fixedly connected to the outer wall of the gas collecting shell 363. Furthermore, the output end of the miniature high-pressure air pump is connected to the inner wall of the air collecting shell 363. The detection part 366 is fixedly connected to the outer wall of the water storage cylinder 362, and one side wall of the detection part 366 is fixedly connected to the outer wall of the air collecting shell 363. A waterproof end cap 367 is threadedly connected to the end of the water storage cylinder 362 and the side away from the limiting plate 364. A high-pressure atomizing nozzle 368 is embedded in the waterproof end cap 367, and a miniature water pump is provided on the side wall of the high-pressure atomizing nozzle 368 near the water storage cylinder 362.

[0034] Specifically, the outer wall of the adjustment unit 361 is rotatably connected to the inner wall of the first cylinder 31, and the output end of the adjustment unit 361 pushes the air collecting shell 363, so that the detection unit 366 can be moved to any position on the inner wall of the cavity of the downhole rock layer for the purpose of detecting the temperature of the downhole rock. The high-pressure atomizing nozzle 368 is used to atomize and spray the clean water in the water storage cylinder 362 under high pressure, and uses a miniature high-pressure air pump in the air collecting shell 363 to blow high-pressure gas in the air collecting shell 363 through the through hole 365 to one side of the high-pressure atomizing nozzle 368, which is used to increase the water pressure in the drilling component 4.

[0035] The adjusting part 361 includes a third cylindrical body 3611; for example, such as Figure 7 As shown.

[0036] One end of the third cylinder 3611 is rotatably connected to a third bearing 3612, and the other end of the third cylinder 3611 is rotatably connected to a fourth bearing 3613. The outer walls of both the third bearing 3612 and the fourth bearing 3613 are rotatably connected to the inner wall of the first cylinder 31. A mounting plate 3614 is fixedly connected to the outer wall of the fourth bearing 3613. A compression spring 3615 is fixedly connected to the outer wall of the mounting plate 3614, near the third cylinder 3611, and the central axis of the compression spring 3615 coincides with the central axis of the mounting plate 3614. A first electric push rod 3616 is fixedly connected to the outer wall of 4 and to the side near the third cylinder 3611. The output end of the first electric push rod 3616 is driven to a second motor 3617. The output end of the second motor 3617 is driven to a lead screw 3618. The compression spring 3615 is sleeved on the outside of the first electric push rod 3616, the second motor 3617 and the lead screw 3618. The other end of the compression spring 3615 is fixedly connected to the outer wall of the limiting plate 364. The end of the lead screw 3618 is threadedly connected to the internal threaded hole on the limiting plate 364 and used in conjunction with it.

[0037] Specifically, the third bearing 3612 and the fourth bearing 3613 are used to rotatably connect the third cylinder 3611 to the inner wall of the first cylinder 31, and the tension of the compression spring 3615 is used to push the detection unit 366 to any position on the inner wall of the cavity of the rock layer in the well. During the process of pushing the water storage cylinder 362, the compression spring 3615 can be squeezed, so that the internal thread hole on the limiting plate 364 is close to the end of the lead screw 3618. The first electric push rod 3616 pushes the lead screw 3618 close to the internal thread hole, and the second motor 3617 drives the lead screw 3618 to rotate. At the same time, the lead screw 3618 is used to fasten the internal thread hole to the lead screw 3618, and the detection unit 366 is used for reset installation after use.

[0038] The detection unit 366 includes a fan-shaped annular housing 3661; for example, such as Figure 8 As shown.

[0039] An assembly hole 3662 is provided at the center of the fan-shaped annular shell 3661, and the inner wall of the assembly hole 3662 is fixedly connected to the outer wall of the water storage cylinder 362. Four sets of fourth cylinders 3663 are fixedly connected to the inner wall of the fan-shaped annular shell 3661. The four sets of fourth cylinders 3663 are arranged in a circular array with the central axis of the fan-shaped annular shell 3661 as the center. Temperature detection probes 3664 are slidably connected to the inner walls of the four sets of fourth cylinders 3663. Linkage rods 3665 are fixedly connected to the outer walls of the four sets of temperature detection probes 3664. A sliding groove is provided on the outer wall of the fourth cylinder 3663, and the linkage rods 3665 are slidably connected to the inner wall of the sliding groove. A miniature electric push rod 3666 is fixedly connected to the inner wall of the fan-shaped annular shell 3661 on the side near the assembly hole 3662, and the output end of the miniature electric push rod 3666 is connected to the linkage rod 3665 in a transmission connection.

[0040] Specifically, the miniature electric push rod 3666 drives the linkage rod 3665 to move, so that while the temperature detection probe 3664 slides on the inner wall of the fourth cylinder 3663, the end of the temperature detection probe 3664 is moved to fit against the inner wall of the cavity of the downhole rock layer, so as to detect the temperature at different positions on the inner wall of the cavity of the downhole rock layer.

[0041] The drilling assembly 4 includes a docking ring 41 and a drill bit 42; for example, as shown below. Figure 9 and Figure 10 As shown.

[0042] The top end of the docking ring 41 is fixedly connected to the bottom end of the drill bit 42, and the drill bit 42 is conical and hollow. The surface of the drill bit 42 is provided with a seepage hole 43 that communicates with the inner wall of the docking ring 41. Two sets of linkage arms 44 are symmetrically fixedly connected to both sides of the inner wall of the docking ring 41. The side walls of the two sets of linkage arms 44 that are far apart from each other are rotatably connected with a shaft pin support 45. The two sets of linkage arms 44 are slidably connected to the inner wall of the hollow sliding cavity 34. The shaft pin support 45 is rotatably connected to the inner wall of the first cylinder 31. The bottom end of the docking ring 41 is provided with a docking groove 46, which is movably engaged with and used in conjunction with the extension ring 33.

[0043] Specifically, the two sets of linkage arms 44 are slidably connected to the inner wall of the hollow sliding cavity 34, so that the drill bit 42 rotates around the pivot pin support 45. This serves to engage the drill bit 42 at the end of the first cylinder 31. At the same time, the extension ring 33 is threadedly connected to the external thread tooth 35 through the second cylinder 32, and the extension ring 33 is engaged with the inner wall of the mating groove 46, which improves the stability of the drill bit 42 and the end of the first cylinder 31.

[0044] The working principle of the integrated downhole explosion-proof direct-thrust drilling rock temperature detection device proposed in this embodiment of the invention is as follows: The first motor 18 drives the outer gear ring 12 to rotate, which in turn drives one end of the linkage component 3 to rotate synchronously. At the same time, the drive gear 17 drives the outer gear ring 12 to mesh and connect, thereby reducing speed and increasing torque to improve the drilling strength of the drilling component 4. The high-pressure atomizing nozzle 368 is used to atomize and spray the clean water in the water storage cylinder 362, and the micro high-pressure air pump in the air collecting shell 363 is used to blow the high-pressure gas in the air collecting shell 363 through the through hole 365 to one side of the high-pressure atomizing nozzle 368 to increase the water pressure in the drilling component 4. Through several sets of seepage holes 43 opened on the surface of the drill bit 42, the high-pressure atomizing nozzle 368 sprays clean water near the several sets of seepage holes 43. Utilizing the centrifugal force generated by the rotation of the drill bit 42, the clean water near the several sets of seepage holes 43 is thrown out and adheres to the inner wall of the rock borehole in the well, thereby changing the physical and mechanical properties of the rock layer, creating a weak surface in the interior of the rock layer in the well, and playing a softening role, so as to reduce the strength of the rock layer in the well and increase the amount of plastic deformation, and achieve the explosion-proof function during the direct drilling into the rock layer in the well. By connecting the second cylinder 32 to the external thread 35, the extension ring 33 is separated from the inner wall of the mating groove 46, and the second motor 3617 is started to drive the lead screw 3618 to separate from the internal thread hole. The tension of the compression spring 3615 is used to push the fan-shaped housing 3661, causing it to slide out of the first cylinder 31. The miniature electric push rod 3666 drives the linkage rod 3665 to move, so that the temperature detection probe 3664 slides on the inner wall of the fourth cylinder 3663, and the end of the temperature detection probe 3664 is moved to fit against the inner wall of the cavity of the downhole rock layer, so as to detect the temperature at different positions on the inner wall of the cavity of the downhole rock layer.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated downhole explosion-proof direct-push drilling rock temperature detection device, characterized in that: It includes a drive component (1), a linkage component (3), and a drilling component (4). The linkage component (3) includes a first cylinder (31) and a detection mechanism (36). One end of the first cylinder (31) is an open structure, and the other end of the first cylinder (31) is a closed structure. The outer wall of the first cylinder (31) is slidably connected to the second cylinder (32). An extension ring (33) is fixedly connected to the outer wall of the second cylinder (32) and the side near the port of the first cylinder (31). The inner wall of the extension ring (33) does not contact the outer wall of the first cylinder (31). The outer wall of the first cylinder (31) is provided with two sets of hollow sliding cavities (34). The outer wall of the first cylinder (31) is provided with external thread teeth (35), and the external thread teeth (35) surround the two sets of hollow sliding cavities (34). The external thread teeth (35) are threadedly connected to the inner wall of the second cylinder (32). The detection mechanism (36) is rotatably connected to the inner wall of the first cylinder (31). The drive assembly (1) is a circular ring structure, and handles (2) are symmetrically fixedly connected to both sides of the outer wall of the drive assembly (1). One end of the first cylinder (31) is rotatably connected to the inner wall of the drive assembly (1), and the drilling assembly (4) is rotatably connected to the other end of the first cylinder (31). The extension ring (33) is movably engaged with the drilling assembly (4). The detection mechanism (36) includes an adjustment part (361), a water storage cylinder (362), and a detection part (366); the outer wall of the water storage cylinder (362) is fixedly connected to an air collecting shell (363), and a limiting plate (364) is fixedly connected to the end of the water storage cylinder (362) and the side near the adjustment part (361), and an internal thread hole is opened at the center of the central axis of the limiting plate (364); The outer wall of the air collecting housing (363) and the side away from the limiting plate (364) are provided with a number of through holes (365). The number of through holes (365) are arranged in a ring array with the central axis of the air collecting housing (363) as the center. A miniature high-pressure air pump is fixedly connected to the outer wall of the air collecting housing (363), and the output end of the miniature high-pressure air pump is connected to the inner wall of the air collecting housing (363). The detection unit (366) is fixedly connected to the outer wall of the water storage cylinder (362), and one side wall of the detection unit (366) is fixedly connected to the outer wall of the air collecting shell (363). A waterproof end cap (367) is threadedly connected to the end of the water storage cylinder (362) and the side away from the limiting plate (364). A high-pressure atomizing nozzle (368) is embedded in the waterproof end cap (367), and a micro water pump is provided on the side wall of the high-pressure atomizing nozzle (368) near the water storage cylinder (362). The drilling assembly (4) includes a docking ring (41) and a drill bit (42); the top end of the docking ring (41) is fixedly connected to the bottom end of the drill bit (42), and the drill bit (42) is conical and hollow, and the surface of the drill bit (42) is provided with a seepage hole (43) that communicates with the inner wall of the docking ring (41).

2. The integrated downhole explosion-proof direct-drive drilling rock temperature detection device according to claim 1, characterized in that: The drive assembly (1) includes a limiting ring (11); the inner wall of the limiting ring (11) is provided with an outer gear ring (12), and the center of the central axis of the outer gear ring (12) coincides with the center of the central axis of the limiting ring (11). A first bearing (13) is fixedly connected to one side of the outer wall of the limiting ring (11), and a first inner ring (14) is rotatably connected to the inner wall of the first bearing (13), and one side wall of the first inner ring (14) is rotatably connected to the outer gear ring (12).

3. The integrated downhole explosion-proof direct-drive drilling rock temperature detection device according to claim 2, characterized in that: The other side of the limiting ring (11) is fixedly connected to a second bearing (15). The inner wall of the second bearing (15) is rotatably connected to a second inner ring (16). One side wall of the second inner ring (16) is rotatably connected to an outer gear ring (12). The outer wall of the outer gear ring (12) is meshed with a drive gear (17). The output end of a first motor (18) is driven at the center of the central axis of the drive gear (17). The outer wall of the first motor (18) is fixedly connected to a limiting pin (19). The end of the limiting pin (19) is fixedly connected to the inner wall of the limiting ring (11).

4. The integrated downhole explosion-proof direct-drive drilling rock temperature detection device according to claim 1, characterized in that: The adjusting part (361) includes a third cylinder (3611); one end of the third cylinder (3611) is rotatably connected to a third bearing (3612), and the other end of the third cylinder (3611) is rotatably connected to a fourth bearing (3613). The outer walls of the third bearing (3612) and the fourth bearing (3613) are rotatably connected to the inner wall of the first cylinder (31). The outer wall of the fourth bearing (3613) is fixedly connected to a mounting plate (3614). A compression spring (3615) is fixedly connected to the outer wall of the mounting plate (3614) on the side closest to the third cylinder (3611), and the central axis of the compression spring (3615) coincides with the central axis of the mounting plate (3614). The mounting plate (3614) is also fixedly connected to the outer wall of the mounting plate (3614) and to the side near the third cylinder (3611). The output end of the first electric push rod (3616) is connected to the second motor (3617), and the output end of the second motor (3617) is connected to the lead screw (3618). The compression spring (3615) is sleeved on the outside of the first electric push rod (3616), the second motor (3617) and the lead screw (3618), and the other end of the compression spring (3615) is fixedly connected to the outer wall of the limiting plate (364). The end of the lead screw (3618) is threadedly connected to the internal thread hole on the limiting plate (364) and used in conjunction with it.

5. The integrated downhole explosion-proof direct-drive drilling rock temperature detection device according to claim 1, characterized in that: The detection unit (366) includes a fan-shaped annular shell (3661); an assembly hole (3662) is provided at the center of the fan-shaped annular shell (3661), and the inner wall of the assembly hole (3662) is fixedly connected to the outer wall of the water storage cylinder (362). Four sets of fourth cylinders (3663) are fixedly connected to the inner wall of the fan-shaped annular shell (3661), and the four sets of fourth cylinders (3663) are arranged in a ring array with the central axis of the fan-shaped annular shell (3661) as the center.

6. The integrated downhole explosion-proof direct-thrust drilling rock temperature detection device according to claim 5, characterized in that: Temperature detection probes (3664) are slidably connected to the inner walls of the four sets of fourth cylinders (3663). Linkage rods (3665) are fixedly connected to the outer walls of the four sets of temperature detection probes (3664). A sliding groove is opened on the outer wall of the fourth cylinder (3663), and the linkage rod (3665) is slidably connected to the inner wall of the sliding groove. A miniature electric push rod (3666) is fixedly connected to the inner wall of the fan-shaped shell (3661) on the side near the assembly hole (3662), and the output end of the miniature electric push rod (3666) is connected to the linkage rod (3665) in a transmission connection.

7. The integrated downhole explosion-proof direct-drive drilling rock temperature detection device according to claim 1, characterized in that: Two sets of linkage arms (44) are symmetrically fixedly connected to the inner walls of the docking ring (41). The side walls of the two sets of linkage arms (44) that are far apart from each other are rotatably connected to a shaft pin support (45). The two sets of linkage arms (44) are slidably connected to the inner wall of the hollow sliding cavity (34). The shaft pin support (45) is rotatably connected to the inner wall of the first cylinder (31). The bottom end of the docking ring (41) is provided with a docking groove (46). The docking groove (46) is movably engaged with the extension ring (33) and used in cooperation.

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