Rock soil sampling device

The design of the self-adjusting mechanism and locking part solves the problem of vertical adjustment of the soil and rock sampling device on inclined ground, improves the accuracy of sampling depth and construction efficiency, and reduces labor intensity.

CN223611155UActive Publication Date: 2025-11-28HEBEI HAORUI FOUNDATION ENG CO LTD
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Patent Information

Application Number
CN202423040648.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-11-28
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

Existing soil and rock sampling devices are difficult to keep vertical on sloping ground, resulting in inaccurate sampling depth and increased errors. Furthermore, heavy equipment increases construction difficulty and labor intensity, and reduces sampling efficiency.

Method used

A soil and rock sampling device was designed, which adopts a self-adjusting mechanism and a locking part. Through the cooperation of sliding parts and elastic parts, the sampling mechanism is automatically adjusted to make it perpendicular to the ground, and is fixed by the locking part to ensure the stability of the borehole.

Benefits of technology

This technology enables rapid adjustment of the verticality of the sampling device on sloping ground, improving the accuracy and efficiency of sampling depth while reducing construction difficulty and labor intensity.

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Abstract

The utility model provides a rock soil sampling device which comprises a base, a self-adjusting mechanism arranged on the base and a sampling mechanism arranged on the self-adjusting mechanism. The self-adjusting mechanism comprises an adjusting part and a locking part, and the adjusting part comprises a base, a sliding piece connected to the base in a sliding mode and a connecting base connected to the sliding piece in a sliding and abutting mode. An adjusting cavity is formed in the base, the sliding piece is arranged in the adjusting cavity, and the sampling mechanism is arranged on the connecting seat. And a plurality of fixing shafts extending towards the base are arranged on the connecting seat. The locking part is used for limiting the displacement of the fixed shaft, the locking part comprises an elastic piece which is arranged on the fixed shaft in a sleeving mode and connected to the base, and when the base inclines by an angle, the sliding piece slides in the length direction of the adjusting cavity due to gravity so as to drive the connecting base to swing relatively, and the elastic piece is compressed and deformed. And when the connecting seat is static at the horizontal position, the locking part is driven to rotate so as to lock the fixed shaft. The device can be vertical to the average ground for collection, and the accuracy of a sampling result is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of geotechnical engineering exploration technology, especially relates to a geotechnical sampling device. BACKGROUND

[0002] Geotechnical engineering investigation is the basis of geotechnical engineering design, and the existence of quality problems will seriously affect the safety and reliability of the project. The larger quality problem is that the soil sample collection is not accurate, which greatly reduces the reliability of the investigation result and affects the reliability of the investigation result and the safety of the subsequent project.

[0003] In the actual sampling process, the sampling point cannot be guaranteed on the flat ground, and in the sampling process, the direction of the drill bit drilling will be offset due to the deviation of the device, resulting in the skew of the sampling. If the sampling is carried out according to the skew direction, the depth of the obtained soil sample or rock sample is not accurate, thereby increasing the error of the sample judgment.

[0004] In addition, for the sampling point with large inclination, the sampling device is generally padded and drilled, but since most of the equipment is heavy, the padding equipment increases the construction difficulty, resulting in low sampling efficiency and increasing the labor intensity of the construction personnel, which is not conducive to outdoor long-term operation. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a geotechnical sampling device, which can quickly adjust the vertical angle between the drill bit and the ground of the sampling point, without the need of padding the sampling device, and improve the sampling efficiency.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A geotechnical sampling device, comprising a base, a self-adjusting mechanism arranged on the base, and a sampling mechanism arranged on the self-adjusting mechanism;

[0008] The self-adjusting mechanism comprises an adjusting part and a locking part;

[0009] The adjusting part comprises a base, a sliding piece slidingly connected to the base, and a connecting seat slidingly abutting against the sliding piece;

[0010] The base is formed with an adjusting cavity, the sliding piece is arranged in the adjusting cavity, and the sampling mechanism is arranged on the connecting seat;

[0011] A plurality of fixing shafts extending towards the base are arranged on the connecting seat;

[0012] The locking part is used for limiting displacement of the fixed shaft, and comprises an elastic member sleeved on the fixed shaft and connected to the base, when the base is tilted, the sliding member slides along the length direction of the adjusting cavity due to gravity to drive the connecting seat to swing, and the elastic member is compressed and deformed;

[0013] When the connecting seat is stationary in a horizontal position, the locking part is driven to rotate to lock the fixed shaft.

[0014] Further, the longitudinal section of the sliding member is in isosceles trapezoidal structure, the connecting seat comprises a bottom plate, and a sliding shaft arranged on the bottom plate;

[0015] Two sliding shafts are abutted on two inclined surfaces of the sliding member.

[0016] Further, a guide groove is arranged along the length direction of the base, and guide plates are arranged on two sides of the sliding member and arranged in the guide groove.

[0017] Further, four fixed shafts are arranged on the bottom plate, and through holes are arranged on opposite positions of the base, and the through holes are used for accommodating the fixed shafts;

[0018] The locking part comprises a nut sleeved on the fixed shaft, a locking member sleeved on the fixed shaft, and a convex ring connected to the base;

[0019] The elastic member is arranged in the middle part of the convex ring, and an accommodating cavity is formed in the elastic member, and the locking member is arranged in the accommodating cavity;

[0020] The locking member comprises a plurality of parts arranged at intervals in the circumferences outside the fixed shaft, when the locking member is driven to move downward to press the parts, the gaps between the parts are gradually reduced to lock the fixed shaft.

[0021] Further, the upper part of the elastic member is sleeved on the nut, and a threaded buckle is arranged on the upper part of the elastic member and threadedly connected with the nut, and the threaded buckle is fixedly connected with the elastic member.

[0022] Further, a tapered section is arranged on the side of the nut facing the locking member, a first conical section is arranged on the upper part of the part, and the locking member is driven to rotate to move downward relative to the elastic member to reduce the gaps of the plurality of parts.

[0023] Further, the accommodating cavity comprises a first cavity and a second cavity arranged in steps, and the diameter of the first cavity is greater than that of the second cavity;

[0024] The part comprises a second conical section connected with the first conical section;

[0025] When the locking part rotates downward, the first conical section is reduced in diameter into the second cavity, and the split body is compressed and stored energy; when the locking part rotates upward, the first conical section moves upward into the first cavity due to elastic energy release, and the split body is released to be free.

[0026] Further, the sampling mechanism comprises a rack arranged on the base plate, a height adjusting mechanism arranged on the rack, and a sampling drill and an engine arranged on the movable end of the height adjusting mechanism.

[0027] The drill rod is connected to the output end of the drill.

[0028] Further, the height adjusting mechanism comprises a driving part, a threaded rod connected to the power output end of the driving part, a mounting frame sliding along the height of the rack, and the sampling drill and the engine are slidingly connected to the mounting frame through a mounting seat.

[0029] The rock-soil sampling device further comprises a horizontal adjusting mechanism connected to the mounting frame, and the horizontal adjusting mechanism adjusts the displacement of the mounting seat along the length direction of the rack.

[0030] Compared with the prior art, the rock-soil sampling device has the following advantages:

[0031] The rock-soil sampling device has the following advantages:

[0032] In addition, by setting the sliding part as an isosceles trapezoidal structure and setting a sliding shaft on the connecting seat, when the sliding part is offset by the base, the two sliding shafts are driven to move up and down respectively due to the sliding of the sliding part, which is simple and easy to implement, and can realize rapid adjustment.

[0033] In addition, the locking part in the embodiment is manually rotated, the nut moves downward relative to the elastic part, and the locking part is extruded downward to gradually reduce the gap between each split body distributed circumferentially outside the fixing shaft and lock the fixing shaft, the fixing shaft is locked by the locking part to fix the connecting seat and the base, thereby ensuring the stability of the sampling mechanism during drilling. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and are used to interpret the present application together with its description. In the drawings:

[0035] Figure 1 Figure 1 is a first perspective view of a rock-soil sampling device according to an embodiment of the present application;

[0036] Figure 2 Figure 2 is a second perspective view of the rock-soil sampling device according to the embodiment of the present application;

[0037] Figure 3 Figure 3 is a top view of the rock-soil sampling device according to the embodiment of the present application;

[0038] Figure 4 Figure 4 is a front view of the rock-soil sampling device according to the embodiment of the present application;

[0039] Figure 5 Figure 5 is a sectional view of the rock-soil sampling device according to the embodiment of the present application; Figure 3 Figure 6 is a sectional view of the rock-soil sampling device according to the embodiment of the present application;

[0040] Figure 6 Figure 7 is a sectional view of the rock-soil sampling device according to the embodiment of the present application; Figure 3 Figure 8 is a sectional view of the rock-soil sampling device according to the embodiment of the present application;

[0041] Figure 7 Figure 9 is a sectional view of the rock-soil sampling device according to the embodiment of the present application; Figure 3 Figure 10 is a sectional view of the rock-soil sampling device according to the embodiment of the present application;

[0042] Figure 8 Figure 11 is a sectional view of the rock-soil sampling device according to the embodiment of the present application;

[0043] Figure 9 Figure 12 is a perspective view of a locking member according to the embodiment of the present application.

[0044] Legend:

[0045] 1, base; 2, adjusting portion; 3, locking portion; 4, sampling mechanism;

[0046] 201, base; 202, sliding member; 203, connecting seat; 204, adjusting cavity; 205, guide groove; 206, guide plate;

[0047] 301, nut; 302, bolt; 303, protruding ring; 304, elastic member; 305, locking member; 306, threaded buckle;

[0048] 401, rack; 402, height adjusting mechanism; 403, sampling drill; 404, engine; 405, horizontal adjusting mechanism; 406, support column;

[0049] 2011, through hole;

[0050] 2031, fixed shaft; 2032, bottom plate; 2033, sliding shaft;

[0051] 3011, conical section;

[0052] 3041, accommodating cavity;

[0053] 3051, split body;

[0054] 4021, driving part; 4022, threaded rod; 4023, mounting frame; 4024, mounting seat;

[0055] 4051, gear; 4052, driving motor; 4053, rack;

[0056] 30511, first conical section; 30512, second conical section;

[0057] 30411, first cavity; 30412, second cavity. DETAILED DESCRIPTION

[0058] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0059] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0060] In addition, in the description of the present application, unless otherwise explicitly limited, the terms "mounting", "connecting", "connection", "connecting member" should be understood broadly. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with the specific circumstances.

[0061] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0062] This embodiment relates to a soil and rock sampling device, which includes a base 1, a self-adjusting mechanism disposed on the base 1, and a sampling mechanism 4 disposed on the self-adjusting mechanism. The self-adjusting mechanism includes an adjusting part 2 and a locking part 3. The adjusting part 2 includes a base 201, a sliding member 202 slidably connected to the base 201, and a connecting seat 203 slidably abutting against the sliding member 202. An adjusting cavity 204 is formed in the base 201, the sliding member 202 is disposed in the adjusting cavity 204, and the sampling mechanism 4 is disposed on the connecting seat 203.

[0063] The connecting seat 203 has several fixed shafts 2031 extending towards the base 201. A locking part 3 limits the displacement of the fixed shafts 2031. The locking part 3 includes an elastic member 304 sleeved on the fixed shafts 2031 and connected to the base 201. When the base 201 tilts, the sliding member 202 slides along the length of the adjusting cavity 204 due to gravity, causing the connecting seat 203 to swing relative to it, and the elastic member 304 is compressed and deformed. When the connecting seat 203 is stationary in a horizontal position, the locking part 3 is driven to rotate and lock the fixed shafts 2031.

[0064] In this embodiment of the soil and rock sampling device, the sampling mechanism 4 is set on the self-adjusting mechanism. When sampling is required at a sampling point with a slope, the sliding member 202 slides along the length direction of the adjusting cavity 204 due to gravity, so as to drive the connecting seat 203 to swing relative to each other and remain stationary in a horizontal position. This ensures that the drill rod on the sampling mechanism 4 can be perpendicular to the average ground and will not affect the sampling depth due to the local ground slope, thus ensuring the accuracy of the sampling results.

[0065] Based on the above overall description, an exemplary structure of the soil and rock sampling device in this embodiment is as follows: Figures 1 to 4 In this embodiment, the base 1 is connected to two bases 201, each base 201 is provided with a sliding member 202, and each base 201 is provided with a corresponding connecting seat 203. The sampling mechanism 4 is connected to the two connecting seats 203 respectively through four pillars 406.

[0066] As a preferred embodiment, such as Figure 4 and Figure 7 As shown, the longitudinal section of the slider 202 is an isosceles trapezoid. The connecting seat 203 includes a base plate 2032 and sliding shafts 2033 disposed on the base plate 2032. The two sliding shafts 2033 abut against the two inclined surfaces of the slider 202. By setting the slider 202 to an isosceles trapezoidal structure and setting the sliding shafts 2033 on the connecting seat 203, when the slider 202 shifts with the base 201, the sliding shafts 2033 on both sides are driven to move up and down respectively due to the sliding of the slider 202. This structure is simple and easy to implement, and can achieve rapid adjustment.

[0067] likeFigure 6 As shown in the drawings, a guide groove 205 is arranged along the length direction of the base 201, and a guide plate 206 is arranged on both sides of the sliding member 202 and in the guide groove 205. The guide plate 206 of the embodiment is in a T-shaped structure, the guide groove 205 is a T-shaped groove arranged in the base 201 and matched with the shape of the guide plate 206, and the T-shaped groove is communicated with the adjusting cavity 204. It should be noted that the length of the adjusting cavity 204 can be converted according to the maximum inclination angle of the sampling point on site.

[0068] Further, as shown in the drawings, Figures 1 to 7 The bottom plate 2032 is provided with four fixing shafts 2031, and the base 201 is provided with through holes 2011 for accommodating the fixing shafts 2031. As shown in the drawings, Figure 8 The locking part 3 includes a nut 301 sleeved on the fixing shaft 2031, a locking member 305 sleeved on the fixing shaft 2031, and a convex ring 303 connected to the base 201. An elastic member 304 is arranged in the middle of the convex ring 303, and an accommodation cavity 3041 is formed in the elastic member 304, and the locking member 305 is arranged in the accommodation cavity 3041. The locking member 305 includes a plurality of parts 3051 arranged at intervals on the outer side of the fixing shaft 2031, and when the locking member 305 is moved downward to press the parts 3051, the gap between the parts 3051 gradually decreases to lock the fixing shaft 2031.

[0069] As shown in the drawings, Figure 8 The nut 301 is a rotary body structure including a flat plate and a cylindrical boss connected to each other, and the outer side of the cylindrical boss is provided with external threads, and the nut 301 is sleeved on the outer side of the fixing shaft 2031. The elastic member 304 of the embodiment is made of nylon material with good elasticity. The elastic member 304 is provided with a circular groove capable of being sleeved on the center of the convex ring 303, so that the elastic member 304 is clamped on the convex ring 303.

[0070] As shown in the drawings, Figure 8 When the base 201 is inclined, the bottom plate 2032 is arranged at an angle with the base 201, at this time, a force for pressing the elastic member 304 is generated, the deformable gap of the elastic member 304, and the gap between the fixing shaft 2031 and the through hole 2011 affect the adjustable angle between the base 1 and the base 201, so the above two gaps can be calculated according to the maximum angle of the sampling point inclination, and in actual application, the on-site exploration measurement record can be obtained when the sampling point is determined.

[0071] The locking part 3 in the embodiment is locked by rotating the nut 301 manually, the nut 301 moves downward relative to the elastic member 304, and the locking member 305 is pressed downward, so that the gap between each sub-body 3051 distributed circumferentially outside the fixing shaft 2031 is gradually reduced to lock the fixing shaft 2031, the fixing shaft 2031 is locked by the locking part 3 to ensure that the connecting seat 203 is fixed to the base 201, thereby ensuring the stability of the sampling mechanism 4 when drilling.

[0072] Further, as shown in Figure 8 , the upper part of the elastic member 304 is sleeved on the nut 301, and the elastic member 304 is provided with a threaded buckle 306 threadedly connected with the nut 301, and the threaded buckle 306 is fixedly connected with the elastic member 304. In order to improve the strength of the threaded connection, the threaded buckle 306 is fixedly connected with the elastic member 304 by the bolt 302, and the threaded buckle 306 is made of steel material.

[0073] As a specific embodiment, as shown in Figure 8 , the side of the nut 301 facing the locking member 305 is provided with a conical section 3011, and the upper part of the sub-body 3051 is provided with a first conical section 30511 matched with the conical section 3011, and the locking member 305 is driven to rotate and move downward relative to the elastic member 304, so that the gap of the plurality of sub-bodies 3051 is reduced.

[0074] Further, as shown in Figure 8 and Figure 9 , the accommodating cavity 3041 includes a first cavity 30411 and a second cavity 30412 arranged in steps, and the diameter of the first cavity 30411 is greater than that of the second cavity 30412. The sub-body 3051 includes a second conical section 30512 connected with the first conical section 30511. When the locking member 305 rotates and moves downward, the first conical section 30511 reduces in diameter and enters the second cavity 30412, and the sub-body 3051 is compressed and stored energy; when the locking member 305 rotates and moves upward, the first conical section 30511 moves upward to the first cavity 30411 due to elastic energy release, and the sub-body 3051 releases energy and is in a free state.

[0075] As shown in Figures 1 to 4 , the sampling mechanism 4 includes a rack 401 arranged on the bottom plate 2032, a height adjusting mechanism 402 arranged on the rack 401, and a sampling drill 403 and an engine 404 arranged on the movable end of the height adjusting mechanism 402. The drill rod is connected to the output end of the drill. The rack 401 is in the form of a rectangular frame structure and is connected above the four support columns 406.

[0076] Further, as shown in Figures 1 to 4As shown in the figure, the height adjusting mechanism 402 comprises a driving part 4021, a threaded rod 4022 connected to the power output end of the driving part 4021, a mounting frame 4023 sliding along the height of the rack 401, and a sampling drill 403 and a motor 404 slidingly connected to the mounting frame 4023 through a mounting seat 4024. The rock soil sampling device further comprises a horizontal adjusting mechanism 405 connected to the mounting frame 4023, which adjusts the displacement of the mounting seat 4024 along the length direction of the rack 401.

[0077] As shown in the figure, Figures 1 to 4 The mounting frame 4023 is in a rectangular frame structure, four struts 406 are arranged through the mounting frame 4023, two driving parts 4021 are adopted in the embodiment, the driving part 4021 is a rotary motor, a screw rod is connected to the power output shaft of the driving part 4021, the screw rod is threadedly connected to the mounting frame 4023, and the mounting frame 4023 is driven to move up and down by the forward and reverse rotation of the driving part 4021. Moreover, the mounting seat 4024 is connected to the mounting frame 4023 and adjusts the height together with the mounting frame 4023, so as to facilitate drilling.

[0078] As shown in the figure, Figure 7 The horizontal adjusting mechanism 405 comprises a driving motor 4052 connected to the mounting seat 4024, a gear 4051 connected to the output end of the driving motor 4052, and a rack 4053 connected to the upper end of the rack 401 and engaged with the gear 4051. The drilling position of the sampling drill 403 can be finely adjusted by driving the driving motor 4052, and the accuracy of the sampling point is further improved. In the embodiment, a drilling space corresponding to the drilling position of the drill is arranged in the middle of the base 1.

[0079] In order to ensure good use effect, as shown in the figure, Figure 1 A shroud is arranged outside the gear 4051 and the rack 4053, and the shroud is connected to the rack 401. A linear scale is arranged above the shroud, and a marker is arranged on the mounting seat 4024. The distance of the drill adjustment can be directly observed, and the mounting seat 4024 can be returned to the middle position when it is at rest.

[0080] Moreover, as shown in the figure, Figures 1 to 4 An angle pointer is arranged on the bottom plate 2032, and an angle scale is arranged on the base 201. The adjusted angle can be directly observed, and the angle value is compared with the angle of exploration. Whether the sampling drill rod is perpendicular to the average ground can be determined, and the accuracy of the sampling sample is further ensured.

[0081] The above only describes the preferred embodiment of the utility model, and does not limit the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rock-soil sampling device characterized in that: comprising a base (1), a self-adjusting mechanism arranged on the base (1), and a sampling mechanism (4) arranged on the self-adjusting mechanism; the self-adjusting mechanism comprises an adjusting part (2) and a locking part (3); the adjusting part (2) comprises a base (201), a sliding piece (202) slidingly connected to the base (201), and a connecting seat (203) slidingly abutting against the sliding piece (202); the base (201) is internally formed with an adjusting cavity (204), the sliding piece (202) is arranged in the adjusting cavity (204), and the sampling mechanism (4) is arranged on the connecting seat (203); the connecting seat (203) is provided with a plurality of fixing shafts (2031) extending toward the base (201); the locking part (3) is used for limiting the displacement of the fixing shafts (2031), and comprises an elastic piece (304) sleeved on the fixing shafts (2031) and connected to the base (201); when the base (201) is inclined at an angle, the sliding piece (202) slides along the length direction of the adjusting cavity (204) due to gravity, so as to drive the connecting seat (203) to swing relatively, and the elastic piece (304) is compressed and deformed; when the connecting seat (203) is stationary at a horizontal position, the locking part (3) is driven to rotate to lock the fixing shafts (2031).

2. The rock-soil sampling device according to claim 1, characterized in that: the longitudinal section of the sliding piece (202) is in isosceles trapezoidal structure, the connecting seat (203) comprises a bottom plate (2032) and a sliding shaft (2033) arranged on the bottom plate (2032); and two sliding shafts (2033) abut against two inclined surfaces of the sliding piece (202).

3. The rock-soil sampling device according to claim 2, characterized in that: a guide groove (205) is arranged along the length direction of the base (201), and guide plates (206) are arranged on both sides of the sliding piece (202) and in the guide groove (205).

4. The rock-soil sampling device according to claim 3, characterized in that: four fixing shafts (2031) are arranged on the bottom plate (2032), and the base (201) is provided with through holes (2011) at opposite positions, which are used for accommodating the fixing shafts (2031); the locking part (3) comprises a nut (301) sleeved on the fixing shafts (2031), a locking piece (305) sleeved on the fixing shafts (2031), and a convex ring (303) connected to the base (201); the elastic piece (304) is arranged in the middle part of the convex ring (303), and an accommodating cavity (3041) is formed in the elastic piece (304), and the locking piece (305) is arranged in the accommodating cavity (3041). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The locking member (305) comprises a plurality of sub-bodies (3051) circumferentially arranged outside the fixing shaft (2031), and the gap between each of the sub-bodies (3051) gradually reduces to lock the fixing shaft (2031) when the locking member (305) is pressed downward.

5. The rock-soil sampling device according to claim 4, wherein: The upper part of the elastic member (304) is sleeved on the nut (301), and the elastic member (304) is provided with a threaded buckle (306) threadedly connected with the nut (301), and the threaded buckle (306) is fixedly connected with the elastic member (304).

6. The rock-soil sampling device according to claim 5, wherein: The side of the nut (301) facing the locking member (305) is provided with a tapered section (3011), the upper part of the sub-body (3051) is provided with a first conical section (30511) matched with the tapered section (3011), and the locking member (305) is driven to rotate and move downward relative to the elastic member (304) to reduce the gap of the plurality of sub-bodies (3051).

7. The rock-soil sampling device according to claim 6, wherein: The accommodating cavity (3041) comprises a first cavity (30411) and a second cavity (30412) arranged in steps, and the diameter of the first cavity (30411) is greater than that of the second cavity (30412); The sub-body (3051) further comprises a second conical section (30512) connected with the first conical section (30511); When the locking member (305) rotates and moves downward, the first conical section (30511) enters the second cavity (30412) with a reduced diameter, and the sub-body (3051) is compressed and stored energy; when the locking member (305) rotates and moves upward, the first conical section (30511) moves upward to the first cavity (30411) due to elastic energy release, and the sub-body (3051) is in a free state after energy release.

8. The rock-soil sampling device according to claim 2, wherein: The sampling mechanism (4) comprises a rack (401) arranged on the bottom plate (2032), a height adjusting mechanism (402) arranged on the rack (401), and a sampling drill (403) and a motor (404) arranged on the movable end of the height adjusting mechanism (402); The drill rod is connected to the output end of the drill.

9. The rock-soil sampling device according to claim 8, wherein: The height adjusting mechanism (402) comprises a driving part (4021), a threaded rod (4022) connected to the power output end of the driving part (4021), a mounting frame (4023) sliding along the height of the rack (401), and the sampling drill (403) and the motor (404) are slidingly connected to the mounting frame (4023) through a mounting seat (4024). The rock-soil sampling device further comprises a horizontal adjusting mechanism (405) connected to the mounting frame (4023), which adjusts the displacement of the mounting seat (4024) along the length direction of the rack (401).