A Mars profile cable-driven telescopic drilling sampler

Abstract

The present invention provides a Mars profile cable-driven telescopic drilling sampler, belonging to the field of extraterrestrial sampling and exploration. It solves the problems of complex structure, complex operation process and poor reliability of extraterrestrial sampling drill tools. It includes a swing arm unit, a feed loading unit, a rotary telescopic unit and a core sampling unit. One side of the swing arm unit is movably connected to the feed loading unit. The side of the feed loading unit away from the swing arm unit is connected to the rotary telescopic unit. The core sampling unit is arranged at the lower end of the rotary telescopic unit. The swing arm unit is used to drive the feed loading unit to act. The feed loading unit is used to drive the rotary telescopic unit to move in the up and down direction. The rotary telescopic unit is used for rotary drilling. The core sampling unit is used for encapsulating samples. It is mainly used for drilling on the Mars surface.

Description

Technical Field

[0001] The present invention belongs to the field of extraterrestrial celestial body sampling and detection, and particularly relates to a rope-driven telescopic drilling sampler for a Mars profile. Background Technique

[0002] At present, deep space exploration is advancing from the moon to deep space. In the future, deep space exploration will mainly be represented by Mars and Mars exploration. Among them, Mars retains important information for humans to study major scientific issues such as the solar system, the origin and evolution of life, etc. Mars exploration has great scientific significance for the development of related fields and space technology. Mars sampling is one of the core tasks of Mars exploration. Therefore, carrying out research on Mars sampling technology is of great significance for supporting future Mars exploration missions.

[0003] At present, the sampling method for extraterrestrial celestial bodies mostly uses a single-rod drill to drill. Limited by requirements such as size and power, it is difficult to achieve deep detection. In response to this, the foreign MRoSA2 prototype, DeeDri device, and ExoMars sampling device all adopt a multi-rod group connection drilling and sampling method, and complete the drill pipe connection and disconnection through threaded connection to achieve drilling and sampling at a depth of 2m - 2.5m. However, this type of system has more physical components, complex drilling action processes and control logics, and poor single-machine reliability. Summary of the Invention

[0004] In view of this, the present invention aims to propose a rope-driven telescopic drilling sampler for a Mars profile to solve the problems of complex structure, complex action process, and poor reliability of extraterrestrial sampling drill tools.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A rope-driven telescopic drilling sampler for a Mars profile, comprising a swing arm unit, a feed loading unit, a rotary telescopic unit, and a core sampling unit. One side of the swing arm unit is movably connected to the feed loading unit, the side of the feed loading unit away from the swing arm unit is connected to the rotary telescopic unit, the core sampling unit is arranged at the lower end of the rotary telescopic unit. The swing arm unit is used to drive the feed loading unit to act, the feed loading unit is used to drive the rotary telescopic unit to move in the up and down direction, the rotary telescopic unit is used for rotary drilling, and the core sampling unit is used for encapsulating samples;

[0006] The rotary telescopic unit includes a telescopic drive assembly, a telescopic rope pulley, a third towing rope, a rotary drive assembly, a guide pulley assembly, an inner drill pipe, an outer drill pipe, a bearing seat, a driven shaft and a limit assembly. The telescopic drive assembly is used to drive the telescopic rope pulley to rotate. The telescopic drive assembly is connected to the driven shaft. The telescopic rope pulley is rotatably connected inside the driven shaft. The driven shaft is rotatably connected inside the bearing seat. The driven shaft is connected to the rotary drive assembly. The rotary drive assembly is connected to the bearing seat. The upper end of the inner drill pipe is connected to the lower end of the driven shaft. The inner drill pipe is slidably arranged inside the outer drill pipe. The guide pulley assembly is fixed to the lower end of the inner drill pipe. Both free ends of the third towing rope are fixed to the outer drill pipe to form a rope loop. The lower part of the rope loop is sleeved on the guide pulley assembly. The upper part of the rope loop is fixed to the telescopic rope pulley. When the telescopic rope pulley rotates, it drives the outer drill pipe to act through the third towing rope.

[0007] Furthermore, the swing arm unit includes a base swing motor, a rotating bracket, a retaining pin and a base. The base swing motor is fixedly connected to the base. The rotating bracket is rotatably connected to the base. The rotating end of the base swing motor is connected to the rotating bracket. The rotating bracket includes a fixed part and a rotating part. The lower end of the rotating part is rotatably connected to one end of the fixed part away from the base swing motor. The upper end of the rotating part and one end of the fixed part close to the base swing motor are limited by the retaining pin after being opened.

[0008] Furthermore, the footage loading unit includes an upper loading guide pulley, a lower loading guide pulley, a secondary footage rope pulley, a linear guide rail, a sliding guide pulley group, a primary footage rope pulley, a second sliding guide pulley group, a first towing rope, a second towing rope and an anchoring pin. The upper and lower ends of the linear guide rail are respectively fixedly provided with the upper loading guide pulley and the lower loading guide pulley. Both ends of the first towing rope are respectively fixed to the upper and lower ends of the linear guide rail. A part of the first towing rope winds into the primary footage rope pulley. The primary footage rope pulley is fixedly arranged on the second sliding guide pulley group. The second sliding guide pulley group is slidably arranged on one side of the linear guide rail. The second sliding guide pulley group is fixedly connected to the rotating part. The secondary footage rope pulley is fixedly connected to the linear guide rail. One end of the first towing rope winds into the secondary footage rope pulley and then is connected to the upper end of the sliding guide pulley group after being reversed by the upper loading guide pulley. The other end of the first towing rope is connected to the lower end of the sliding guide pulley group after being reversed by the lower loading guide pulley. The sliding guide pulley group is connected to the bearing seat. The sliding guide pulley group is slidably connected to the linear guide rail. The anchoring pin is fixedly connected to the lower part of the linear guide rail.

[0009] Furthermore, the guide pulley assembly includes a guide pulley, a guide pulley bracket and a first locking pin. The guide pulley is rotatably connected to the guide pulley bracket. The guide pulley bracket is fixedly connected to the lower end of the inner drill pipe through the first locking pin.

[0010] Furthermore, the rotary telescopic unit further includes a spline pair. The spline pair is fixedly connected to the outer circumference of the inner drill pipe. The spline pair is slidably connected inside the outer drill pipe. The spline pair is a wedge-shaped structure that is wider at the bottom and narrower at the top. When the inner drill pipe moves upward to a certain position, the torque between the spline pair and the outer drill pipe is greater than the resistance of the outer drill pipe when drilling downward.

[0011] Furthermore, the spline pair is fixedly connected to the inner drill pipe through a limit assembly.

[0012] Furthermore, the limit assembly is a second locking pin.

[0013] Furthermore, the rotary telescopic unit further includes a dust-proof seal and a first pressing block. The dust-proof seal is fixed to the upper end of the outer drill pipe through the first pressing block. The dust-proof seal is slidably connected to the inner drill pipe.

[0014] Furthermore, the rotary drive assembly includes a rotary driven gear, a rotary drive motor, and a rotary drive gear. The rotating end of the rotary drive motor is connected to the rotary drive gear. The rotary driven gear is provided on the driven shaft. The rotary drive gear meshes with the rotary driven gear. The rotary drive motor is connected to the bearing seat.

[0015] Furthermore, the telescopic drive assembly includes a telescopic drive motor and a telescopic bevel gear. The telescopic drive motor is fixedly connected to the driven shaft. The output end of the telescopic drive motor is connected to the telescopic bevel gear. The telescopic bevel gear meshes with the bevel gear on the telescopic rope wheel. The telescopic bevel gear is rotatably connected inside the driven shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Through the setting of the swing arm unit, the rotary telescopic unit can be rotated downward after selection, which can save space, facilitate movement, and also facilitate the selection of drilling points;

[0018] 2. Through the setting of the rotary telescopic unit, drilling can be carried out, and the structure is simple and reliable;

[0019] 3. Through the setting of the feed loading unit, the feed drive in the up and down directions can be carried out, and reliable work can be carried out without being affected by special extraterrestrial environments;

[0020] 4. Through the setting of the guide wheel, the descent process of the outer drill pipe can be stable and highly reliable;

[0021] 5. The inner drill pipe and the outer drill pipe can move relative to each other, thereby extending the overall drilling length. Brief Description of the Drawings

[0022] The accompanying drawings that form a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a schematic structural diagram of a rope-driven telescopic drilling sampler for a Mars profile according to the present invention;

[0024] Figure 2 It is a schematic structural diagram of the footage loading unit according to the present invention;

[0025] Figure 3 It is a schematic structural diagram of the rotary telescopic unit according to the present invention;

[0026] Figure 4 It is a schematic diagram of partial component structures of the schematic structural diagram according to the present invention.

[0027] Swing arm unit 1; Base swing motor 10; Rotary bracket 11; Pin 12; Base 13; Footage loading unit 2; Upper loading guide wheel 201; Lower loading guide wheel 202; Secondary footage rope wheel 21; Linear guide rail 22; Sliding guide wheel group 23; Primary footage rope wheel 24; Second sliding guide wheel group 25; First traction rope 26; Second traction rope 27; Anchor pin 28; Rotary telescopic unit 3; Telescopic drive motor 30; Telescopic bevel gear 31; Telescopic rope wheel 32; Third traction rope 33; Rotary driven gear 34; Rotary drive motor 35; Rotary drive gear 36; Inner drill pipe 37; Dust seal 38; Outer drill pipe 39; First pressing block 310; Spline pair 311; Guide wheel 312; Guide wheel bracket 313; First locking pin 314; Second locking pin 315; Second pressing block 316; Wire pressing joint 317; Bearing seat 318; Driven shaft 319; Core sampling unit 4. Detailed implementation manners

[0028] 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. It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Refer to the attached drawings to describe this embodiment. A Mars profile wire-driven telescopic drilling sampler includes a swing arm unit 1, a feed loading unit 2, a rotary telescopic unit 3, and a core sampling unit 4. One side of the swing arm unit 1 is movably connected to the feed loading unit 2. The side of the feed loading unit 2 away from the swing arm unit 1 is connected to the rotary telescopic unit 3. The core sampling unit 4 is arranged at the lower end of the rotary telescopic unit 3. The swing arm unit 1 is used to drive the feed loading unit 2 to act. The feed loading unit 2 is used to drive the rotary telescopic unit 3 to move in the up and down direction. The rotary telescopic unit 3 is used for rotary drilling. The core sampling unit 4 is used to encapsulate samples. The core sampling unit 4 is a sampler, which is prior art and will not be elaborated here.

[0030] The rotary telescopic unit 3 includes a telescopic drive assembly, a telescopic rope pulley 32, a third towing rope 33, a rotary drive assembly, a guide wheel assembly, an inner drill pipe 37, an outer drill pipe 39, a bearing seat 318, a driven shaft 319, and a limiting assembly. The telescopic drive assembly is used to drive the telescopic rope pulley 32 to rotate. The telescopic drive assembly is connected to the driven shaft 319. The telescopic rope pulley 32 is rotatably connected inside the driven shaft 319. The driven shaft 319 is rotatably connected inside the bearing seat 318. The driven shaft 319 is connected to the rotary drive assembly. The rotary drive assembly is connected to the bearing seat 318. The upper end of the inner drill pipe 37 is connected to the lower end of the driven shaft 319. The inner drill pipe 37 is slidably arranged inside the outer drill pipe 39. The guide wheel assembly is fixed at the lower end of the inner drill pipe 37. Both free ends of the third towing rope 33 are fixed on the outer drill pipe 39 to form a rope loop. The lower part of the rope loop is sleeved on the guide wheel assembly. The upper part of the rope loop is fixed on the telescopic rope pulley 32. When the telescopic rope pulley 32 rotates, it drives the outer drill pipe 39 to act through the third towing rope 33. By driving the telescopic rope pulley 32 to rotate through the telescopic drive assembly, the rotation of the telescopic rope pulley 32 will lower the outer drill pipe 39 through the third towing rope 33, so that the overall height of the inner drill pipe 37 and the outer drill pipe 39 is extended, thereby obtaining a longer drilling depth.

[0031] In the embodiment, the swing arm unit 1 includes a base swing motor 10, a rotating bracket 11, a retaining pin 12, and a base 13. The base swing motor 10 is fixedly connected to the base 13. The rotating bracket 11 is rotatably connected to the base 13. The rotating end of the base swing motor 10 is connected to the rotating bracket 11. The rotating bracket 11 includes a fixed part and a rotating part. The lower end of the rotating part is rotatably connected to one end of the fixed part away from the base swing motor 10. The upper end of the rotating part and one end of the fixed part close to the base swing motor 10 are limited by the retaining pin 12 after being opened. By driving the rotating bracket 11 to rotate through the base swing motor 10, it can help find a suitable drilling point. After the drilling point is selected, the rotating bracket 11 is opened, and then it is limited by the retaining pin 12, and the drilling work is ready.

[0032] In an embodiment, the footage loading unit 2 includes an upper loading guide wheel 201, a lower loading guide wheel 202, a secondary footage rope wheel 21, a linear guide rail 22, a sliding guide wheel set 23, a primary footage rope wheel 24, a second sliding guide wheel set 25, a first traction rope 26, a second traction rope 27, and an anchor pin 28. The upper and lower ends of the linear guide rail 22 are respectively and fixedly provided with the upper loading guide wheel 201 and the lower loading guide wheel 202. The two ends of the first traction rope 26 are respectively fixed at the upper and lower ends of the linear guide rail 22. A part of the first traction rope 26 is wound into the primary footage rope wheel 24. The primary footage rope wheel 24 is fixedly provided on the second sliding guide wheel set 25. The second sliding guide wheel set 25 is slidably provided on one side of the linear guide rail 22. The second sliding guide wheel set 25 is fixedly connected to the rotating part. The secondary footage rope wheel 21 is fixedly connected to the linear guide rail 22. One end of the first traction rope 26 is wound into the secondary footage rope wheel 21, then is redirected by the upper loading guide wheel 201 and connected to the upper end of the sliding guide wheel set 23. The other end of the first traction rope 26 is redirected by the lower loading guide wheel 202 and connected to the lower end of the sliding guide wheel set 23. The sliding guide wheel set 23 is connected to the bearing seat 318. The sliding guide wheel set 23 is slidably connected to the linear guide rail 22. The anchor pin 28 is fixedly connected to the lower part of the linear guide rail 22. The linear guide rail 22 is driven to move downward by the primary footage rope wheel 24. After the anchor pin 28 penetrates into the ground to complete the anchoring, then the secondary footage rope wheel 21 drives the sliding guide wheel set 23 to move downward through the second traction rope 27, and then drives the rotary telescopic unit 3 to move downward to perform the drilling operation.

[0033] In an embodiment, the guide wheel assembly includes a guide wheel 312, a guide wheel bracket 313, and a first locking pin 314. The guide wheel 312 is rotatably connected to the guide wheel bracket 313. The guide wheel bracket 313 is fixedly connected to the lower end of the inner drill pipe 37 through the first locking pin 314. The installation method through the first locking pin 314 is simple and reliable, not prone to failures, and also convenient for later disassembly and maintenance. The guide wheel 312 can play a role in smooth transition.

[0034] In an embodiment, the rotary telescopic unit 3 further includes a spline pair 311. The spline pair 311 is fixedly connected to the periphery of the inner drill pipe 37. The spline pair 311 is slidably connected inside the outer drill pipe 39. The spline pair 311 is a wedge-shaped structure that is wider at the bottom and narrower at the top. When the inner drill pipe 37 moves upward to a certain position, the torque between the spline pair 311 and the outer drill pipe 39 is greater than the resistance of the outer drill pipe 39 to drill downward.

[0035] In an embodiment, the spline pair 311 is fixedly connected to the inner drill pipe 37 through a second locking pin 315. The installation method through the second locking pin 315 is simple and reliable, not prone to failures, and also convenient for later disassembly and maintenance.

[0036] In an embodiment, the rotary telescopic unit 3 further includes a dust-proof seal 38 and a first pressing block 310. The dust-proof seal 38 is fixed to the upper end of the outer drill pipe 39 through the first pressing block 310. The dust-proof seal 38 is slidably connected to the inner drill pipe 37. The dust-proof seal 38 can improve the sealing performance of the connection between the inner drill pipe 37 and the outer drill pipe 39 and prevent the influence of the external environment.

[0037] In an embodiment, the rotary drive assembly includes a rotary driven gear 34, a rotary drive motor 35, and a rotary driving gear 36. The rotating end of the rotary drive motor 35 is connected to the rotary driving gear 36. The rotary driven gear 34 is provided on the driven shaft 319. The rotary driving gear 36 meshes with the rotary driven gear 34. The rotary drive motor 35 is connected to the bearing block 318. By driving the rotary driving gear 36 to rotate through the rotary drive motor 35, the rotary driving gear 36 will drive the driven shaft 319 to rotate through the rotary driven gear 34, and then drive the inner drill pipe 37 and the outer drill pipe 39 to rotate synchronously for drilling.

[0038] In an embodiment, the telescopic drive assembly includes a telescopic drive motor 30 and a telescopic bevel gear 31. The telescopic drive motor 30 is fixedly connected to the driven shaft 319. The output end of the telescopic drive motor 30 is connected to the telescopic bevel gear 31. The telescopic bevel gear 31 meshes with the bevel gear on the telescopic rope pulley 32. The telescopic bevel gear 31 is rotatably connected inside the driven shaft 319. By driving the telescopic bevel gear 31 to rotate through the telescopic drive motor 30, the telescopic bevel gear 31 will drive the telescopic rope pulley 32 to rotate, thereby driving the outer drill pipe 39 to move. The wire pressing joints 317 are the two free ends of the third traction rope 33 and are fixed to the outer drill pipe 39 through the second pressing block 316.

[0039] During use, the rotary support 11 is driven to rotate by the base swing motor 10. After selecting the anchoring location, the rotary support 11 is opened so that the anchoring needle 28 is vertically downward. Then, the first traction rope 26 is driven to move by the first feed rope pulley 24. The first traction rope 26 will drive the linear guide rail 22 to move downward. The downward movement of the linear guide rail 22 will cause the anchoring needle 28 to be inserted into the ground to complete the anchoring. Then, the second traction rope 27 is driven by the second feed rope pulley 21 to drive the sliding guide wheel group 23 to move downward. The downward movement of the sliding guide wheel group 23 will drive the rotary telescopic unit 3 to move downward. At this time, the rotary driving gear 36 is driven to rotate by the rotary drive motor 35. The rotation of the rotary driving gear 36 will drive the rotary driven gear 34 to rotate. The rotary driven gear 34 will drive the inner drill pipe 37 to rotate through the driven shaft 319. The inner drill pipe 37 will drive the outer drill pipe 39 to rotate through the spline pair 311. In this way, the rotating outer drill pipe 39 cooperates with the downward driving action of the sliding guide wheel group 23 to perform the drilling work.

[0040] After drilling to a certain depth, the sliding guide wheel set 23 is driven to move upward by the secondary feed rope pulley 21. At this time, the telescopic driving motor 30 operates to drive the telescopic bevel gear 31 to rotate. The rotation of the telescopic bevel gear 31 drives the telescopic rope pulley 32 to rotate. The rotation of the telescopic rope pulley 32 lowers the third towing rope 33 that has been wound around the telescopic rope pulley 32, so that the outer drill pipe 39 and the inner drill pipe 37 move relative to each other. When the inner drill pipe 37 moves upward to a certain position, the torque between the spline pair 311 and the outer drill pipe 39 is greater than the resistance of the outer drill pipe 39 to drill downward. At this time, drilling can continue downward.

[0041] The embodiments of the present invention disclosed above are only used to help explain the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. According to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well.

Claims

1. A Mars profile wire-driven telescopic drilling sampler, characterized in that: It includes a swing arm unit (1), a feed loading unit (2), a slewing and telescoping unit (3) and a coring unit (4). One side of the swing arm unit (1) is movably connected to the feed loading unit (2). The side of the feed loading unit (2) away from the swing arm unit (1) is connected to the slewing and telescoping unit (3). The coring unit (4) is arranged at the lower end of the slewing and telescoping unit (3). The swing arm unit (1) is used to drive the feed loading unit (2) to act. The feed loading unit (2) is used to drive the slewing and telescoping unit (3) to move in the up and down direction. The slewing and telescoping unit (3) is used for rotary drilling. The coring unit (4) is used for encapsulating samples. The slewing and telescoping unit (3) includes a telescoping drive assembly, a telescoping rope pulley (32), a third towing rope (33), a slewing drive assembly, a guide wheel assembly, an inner drill pipe (37), an outer drill pipe (39), a bearing seat (318), a driven shaft (319) and a limiting assembly. The telescoping drive assembly is used to drive the telescoping rope pulley (32) to rotate. The telescoping drive assembly is connected to the driven shaft (319). The telescoping rope pulley (32) is rotatably connected inside the driven shaft (319). The driven shaft (319) is rotatably connected inside the bearing seat (318). The driven shaft (319) is connected to the slewing drive assembly. The slewing drive assembly is connected to the bearing seat (318). The upper end of the inner drill pipe (37) is connected to the lower end of the driven shaft (319). The inner drill pipe (37) is slidably arranged inside the outer drill pipe (39). The guide wheel assembly is fixed at the lower end of the inner drill pipe (37). Both free ends of the third towing rope (33) are fixed on the outer drill pipe (39) to form a rope loop. The lower part of the rope loop is sleeved on the guide wheel assembly. The upper part of the rope loop is fixed on the telescoping rope pulley (32). When the telescoping rope pulley (32) rotates, it drives the outer drill pipe (39) to act through the third towing rope (33).

2. The Mars profile wire-driven telescopic drilling sampler according to claim 1, characterized in that: The swing arm unit (1) includes a base swing motor (10), a rotating bracket (11), a pin (12) and a base (13). The base swing motor (10) is fixedly connected to the base (13). The rotating bracket (11) is rotatably connected to the base (13). The rotating end of the base swing motor (10) is connected to the rotating bracket (11). The rotating bracket (11) includes a fixed part and a rotating part. The lower end of the rotating part is rotatably connected to one end of the fixed part away from the base swing motor (10). The upper end of the rotating part and one end of the fixed part close to the base swing motor (10) are limited by the pin (12) after being opened.

3. The Mars profile wire-driven telescopic drilling sampler according to claim 1 or 2, characterized in that: The footage loading unit (2) includes an upper loading guide pulley (201), a lower loading guide pulley (202), a secondary footage rope pulley (21), a linear guide rail (22), a sliding guide pulley group (23), a primary footage rope pulley (24), a second sliding guide pulley group (25), a first traction rope (26), a second traction rope (27), and an anchoring pin (28). The upper and lower ends of the linear guide rail (22) are respectively and fixedly provided with the upper loading guide pulley (201) and the lower loading guide pulley (202). The two ends of the first traction rope (26) are respectively fixed at the upper and lower ends of the linear guide rail (22). A part of the first traction rope (26) is wound into the primary footage rope pulley (24). The primary footage rope pulley (24) is fixedly provided on the second sliding guide pulley group (25). The second sliding guide pulley group (25) is slidably provided on one side of the linear guide rail (22). The second sliding guide pulley group (25) is fixedly connected to the rotating part. The secondary footage rope pulley (21) is fixedly connected to the linear guide rail (22). One end of the first traction rope (26) is wound into the secondary footage rope pulley (21), then is redirected by the upper loading guide pulley (201) and connected to the upper end of the sliding guide pulley group (23). The other end of the first traction rope (26) is redirected by the lower loading guide pulley (202) and connected to the lower end of the sliding guide pulley group (23). The sliding guide pulley group (23) is connected to the bearing block (318). The sliding guide pulley group (23) is slidably connected to the linear guide rail (22). The anchoring pin (28) is fixedly connected to the lower part of the linear guide rail (22).

4. The Mars profile wire-driven telescopic drilling sampler according to claim 3, characterized in that: The guide pulley assembly includes a guide pulley (312), a guide pulley bracket (313), and a first locking pin (314). The guide pulley (312) is rotatably connected to the guide pulley bracket (313). The guide pulley bracket (313) is fixedly connected to the lower end of the inner drill pipe (37) through the first locking pin (314).

5. The Mars profile wire-driven telescopic drilling sampler according to claim 4, characterized in that: The rotary telescopic unit (3) further includes a spline pair (311). The spline pair (311) is fixedly connected to the periphery of the inner drill pipe (37). The spline pair (311) is slidably connected inside the outer drill pipe (39). The spline pair (311) is a wedge-shaped structure that is wider at the bottom and narrower at the top. When the inner drill pipe (37) moves upward to a certain position, the torque between the spline pair (311) and the outer drill pipe (39) is greater than the resistance of the outer drill pipe (39) drilling downward.

6. The Mars profile wire-driven telescopic drilling sampler according to claim 5, characterized in that: The spline pair (311) is fixedly connected to the inner drill pipe (37) through a limiting component.

7. The Mars profile wire-driven telescopic drilling sampler according to claim 6, characterized in that: The limiting component is a second locking pin (315).

8. The Mars profile wire-driven telescopic drilling sampler according to claim 5, characterized in that: The rotary telescopic unit (3) further includes a dust-proof seal (38) and a first pressing block (310). The dust-proof seal (38) is fixed to the upper end of the outer drill pipe (39) through the first pressing block (310). The dust-proof seal (38) is slidably connected to the inner drill pipe (37).

9. The Mars profile wire-driven telescopic drilling sampler according to claim 1, characterized in that: The slewing drive assembly includes a slewing driven gear (34), a slewing drive motor (35) and a slewing driving gear (36). The rotating end of the slewing drive motor (35) is connected to the slewing driving gear (36). The slewing driven gear (34) is provided on the driven shaft (319). The slewing driving gear (36) meshes with the slewing driven gear (34). The slewing drive motor (35) is connected to the bearing block (318).

10. The Mars profile wire-driven telescopic drilling sampler according to claim 9, characterized in that: The telescopic drive assembly includes a telescopic drive motor (30) and a telescopic bevel gear (31). The telescopic drive motor (30) is fixedly connected to the driven shaft (319). The output end of the telescopic drive motor (30) is connected to the telescopic bevel gear (31). The telescopic bevel gear (31) meshes with the bevel gear on the telescopic rope pulley (32). The telescopic bevel gear (31) is rotatably connected inside the driven shaft (319).

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