CN111238870B

CN111238870B - Geological survey device

Info

Publication number: CN111238870B
Application number: CN202010191070.5A
Authority: CN
Inventors: 梁万龙
Original assignee: Guangdong Power Grid Co Ltd; Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2023-01-20
Anticipated expiration: 2040-03-18
Also published as: CN111238870A

Abstract

The invention relates to the field of geological survey, and discloses a geological survey device which comprises a bearing frame and a soil taking mechanism which is connected to the central position of the bearing frame in a penetrating way, wherein the top end of the soil taking mechanism is connected with a driver, the device realizes the function of directly taking out the amount of soil by drilling into a large depth through the matching of a spiral soil taking column and a drilling outer sleeve, the condition that the soil falls off due to mechanical shaking is avoided easily in the soil taking process even if the viscosity of the soil at the drilling position is low, and meanwhile, the lengths of the spiral soil taking column and the drilling outer sleeve can be adjusted in real time according to the spiral columns and the sub sleeves, so that the application range of the device is wider.

Description

Geological survey device

Technical Field

The invention relates to the field of geological survey, in particular to a geological survey device.

Background

The geological exploration is to survey and detect geology by various means and methods, determine a proper bearing stratum, determine a foundation type according to the foundation bearing capacity of the bearing stratum and calculate the investigation and research activities of foundation parameters; the method is to find industrially significant mineral deposits in mineral exploration, provide mineral reserves and geological data required by mine construction design for finding out the quality and quantity of the mineral deposits and technical conditions of mining and utilization, and carry out investigation and research work on geological conditions such as rocks, strata, structures, mineral deposits, hydrology, landforms and the like in a certain area, and usually, when geological exploration is carried out, topographic exploration and land exploration are carried out by means of a surveying device.

At present common survey device faces generally, and it often all adopts the form of probing to take out partial soil to detect when carrying out geological survey, but because of some regional underground soil condition is complicated, in case there is more sand in the probing position, because of sand viscidity is lower, thereby very easily appearing dropping because of the shake when sand takes out the in-process and spilling the phenomenon of borrowing mechanism, lead to subsequent inspection to receive the influence.

Disclosure of Invention

Therefore, the embodiment of the invention provides a geological survey device, which aims to solve the problem that in the prior art, due to the fact that the viscosity of sand is low, when the sand is easy to shake in the process of taking out, the sand falls out of a soil taking mechanism, and subsequent inspection is affected.

In order to achieve the above object, an embodiment of the present invention provides the following:

the geological survey device comprises a bearing frame and a soil taking mechanism which is connected to the center of the bearing frame in a penetrating manner, wherein a driver is connected to the top end of the soil taking mechanism;

the soil taking mechanism comprises a drilling outer sleeve and a spiral soil taking column, the drilling outer sleeve is in threaded connection with the central position of a bearing frame, the spiral soil taking column is directly connected with an output shaft of a driver, a driving disc used for driving the drilling outer sleeve to drill underground is sleeved on the outer side of the drilling outer sleeve, the driving disc is located on the upper surface of the bearing frame, a limiting frame for limiting the driving disc is mounted on the upper surface of the bearing frame, the spiral soil taking column is sleeved on the inner side of the drilling outer sleeve, and one end, close to the driver, of the spiral soil taking column is connected with the inner wall of the end portion of the drilling outer sleeve;

the drilling outer sleeve comprises a main sleeve which penetrates through the center of the bearing frame, one end, close to the driver, of the main sleeve is connected with an extension sleeve, the side wall of the other end of the main sleeve is provided with an inlet hole, the side wall of one end, close to the driver, of the main sleeve is provided with a component clamping groove, the inner wall of the component clamping groove is provided with a pushing elastic sheet, one end, far away from the main sleeve, of the pushing elastic sheet is provided with a limiting block used for limiting the position of the extension sleeve, one end, far away from the main sleeve, of the extension sleeve is connected with a discharging cover through threads, and one end, far away from the extension sleeve, of the discharging cover is directly connected with the driver;

the spiral soil taking column comprises a main soil taking column and a sub soil taking column, the main soil taking column and the sub soil taking column are sleeved in a main sleeve, an embedded groove is formed in one end, close to the driver, of the main soil taking column, a movable groove is formed in the other end of the main soil taking column, a sweeping mechanism used for sweeping gravel is installed in the movable groove, the sub soil taking column is located in the extension sleeve, and two ends of the sub soil taking column are respectively connected with the embedded groove and the discharging cover;

one end of the discharging cover, which is close to the extension sleeve, is provided with a stepped hole with threads arranged inside, the inner wall of the stepped hole is provided with a fixed block hole, and a discharging hole communicated with the stepped hole is arranged above the fixed block hole.

As a preferable scheme of the invention, the extension sleeve comprises two sub-sleeves which have the same structure and are connected end to form a vertical shape, an inner groove is formed in the inner wall of one end, close to the main sleeve, of each sub-sleeve, a containing hole for containing the limiting block is formed in the inner wall of the inner groove, a screwed groove is formed in the outer side wall of the other end of each sub-sleeve, a limiting block groove is formed in the side wall of the screwed groove, and a fixing block is installed on the inner wall of the limiting block groove through the pushing elastic sheet.

As a preferable scheme of the invention, the separating and taking soil column comprises two spiral columns which have the same structure and are connected end to form a vertical shape, a connecting groove is formed in one end of each spiral column, a connecting convex column embedded into the connecting groove is installed at the other end of each spiral column, and spiral strips are installed on the side walls of the spiral columns.

As a preferable scheme of the present invention, a locking groove is formed in a side wall of the connecting convex column, a push-out spring is installed on an inner wall of the locking groove, a locking platform is installed at one end of the push-out spring, which is far away from the locking groove, and a locking hole for accommodating the locking platform is formed in a side wall of the connecting groove.

As a preferable scheme of the invention, the sweeping mechanism comprises a damping spring mounted on the inner wall of the movable groove and a frustum cover connected with the end face of the main soil-taking column, a plurality of inclined plates are arranged on the side wall of the frustum cover in a penetrating manner, a pushing column is mounted at one end of the damping spring, which is far away from the movable groove, and a pushing sheet connected with the surface of the inclined plate is mounted at one end of the pushing column, which is far away from the damping spring.

In a preferred embodiment of the present invention, the inclined plate has a T-shaped structure.

The embodiment of the invention has the following advantages:

the equipment realizes the function of directly taking out the amount of soil by matching the spiral soil taking column with the drilled outer sleeve, even if the viscosity of the soil drilled into the position is low, the condition that the soil falls off due to mechanical shaking cannot easily occur in the process of taking out the soil, and meanwhile, the length of the spiral soil taking column and the drilled outer sleeve can be adjusted in real time according to the spiral columns and the sub sleeves, so that the application range of the equipment is wider;

in addition, the equipment can sweep away the gravel at the drilling position through the sweeping mechanism, so that the finally taken out soil does not have a large amount of large-particle gravel, the service life of the equipment can be prolonged, and the condition that the soil is insufficiently sampled or the equipment is clamped by the gravel can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary and that other implementation drawings may be derived from the provided drawings by those of ordinary skill in the art without inventive effort.

The structures, the proportions, the sizes, and the like shown in the specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical essence, and any modifications of the structures, changes of the proportion relation, or adjustments of the sizes, should still fall within the scope of the technical contents disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a diagram illustrating a structure of a restriction block according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a main soil taking column and a spiral column during installation according to an embodiment of the invention;

FIG. 5 is a schematic structural view of a discharge cover according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a spiral soil-taking column structure according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a split-jacket structure according to an embodiment of the present invention.

In the figure:

1-a bearing frame; 2-a soil taking mechanism; 3-a driver; 4, drilling into the outer sleeve; 5-taking the earth pillar spirally; 6-driving the disc; 7-a limiting frame; 8-a sweeping mechanism;

401-main sleeve; 402-an extension sleeve; 403-component card slot; 404-pushing the spring plate; 405-a restriction block; 406-a discharge cap; 407-sleeving; 408-inner grooves; 409-a receiving hole; 410-screwing into a groove; 411-a slice slot; 412-fixed block; 413-a stepped bore; 414-a block-fixing hole; 415-a discharge hole; 416-an entrance aperture;

501, taking out a soil column mainly; 502-separating the earth pillar; 503-embedded groove; 504-active slot; 505-a spiral column; 506-connecting grooves; 507-connecting the convex columns; 508-helical bars; 509-locking groove; 510-a push-out spring; 511-a locking stage; 512-locking hole;

801-damping spring; 802-frustum cover; 803-oblique slices; 804-pushing the column; 805-push tablet.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

As shown in fig. 1, the present invention provides a geological survey apparatus, which can realize the function of directly taking out the amount of soil by matching a spiral soil taking column 5 with a drilled casing 4, and can sweep away gravel at the drilled position by a sweeping mechanism 8 to prolong the service life of the apparatus, and can prevent the soil taken out finally from having a large amount of large-sized gravel, thereby avoiding the occurrence of insufficient soil sampling or the apparatus being stuck by the gravel.

The geological survey device of the embodiment comprises a bearing frame 1 and an earth taking mechanism 2 which is connected to the center of the bearing frame 1 in a penetrating mode, a driver 3 is connected to the top end of the earth taking mechanism 2, the driver 3 can select a small motor which is common nowadays, the small motor is selected to be free from being clamped because an drilling mechanism (namely a mechanism wrapped by soil) of the device mainly drills into an outer sleeve 4, and as shown in fig. 1, a part such as an optical prism is installed above the driver 3 to play a role in positioning, and the mechanism at the position can also be selected not to be installed.

As shown in fig. 1, the soil taking mechanism 2 includes a drilling jacket 4 in the center of the bearing frame 1 through threaded connection (after the drilling jacket 4 is in threaded connection with the bearing frame 1, it is ensured that the driving disk 6 can be smoothly driven to drill into or drill out of the ground after being started, the drilling jacket 4 is driven to drill into the ground) and a spiral soil taking column 5 directly connected with an output shaft of the driver 3, a driving disk 6 for driving the drilling jacket 4 to drill into the ground is sleeved on the outer side of the drilling jacket 4, the driving disk 6 can be driven by a motor, the driving disk 6 is located on the upper surface of the bearing frame 1, a limiting frame 7 for limiting the driving disk 6 is installed on the upper surface of the bearing frame 1, the limiting frame 7 is used for limiting the position of the driving disk 6, so that the driving disk 6 cannot be driven by the drilling jacket 4 to move up and down, the spiral soil taking column 5 is sleeved on the inner side of the drilling jacket 4, and one end of the spiral soil taking column 5 close to the driver 3 is connected with the inner wall of the end of the drilling jacket 4.

When the device is used, the drilling outer sleeve 4 and the spiral soil taking column 5 with proper length can be installed according to the drilling depth (different depths need to be drilled due to the fact that the soil environment of a part of drilling areas is special), when the specification of the device meets the requirement, the driving disc 6 and the driver 3 are directly started, the driving disc 6 can drive the drilling outer sleeve 4 to enter the ground in a rotating mode (the working principle of the position can refer to the lead screw, namely the side wall of the drilling outer sleeve 4 is provided with the thread screwed with the side wall of the driving disc 6), in the process that the drilling outer sleeve 4 drills into the ground, the spiral soil taking column 5 can also rotate and is used for taking out soil at the drilling position in real time, and the operation is carried out in such a mode that when the device encounters sandy soil with low viscosity, the situation that the soil is shaken off due to shaking cannot occur.

As shown in fig. 1, 3, 5, 6 and 7, the drilling outer sleeve 4 includes a main sleeve 401 penetrating through the center of the bearing frame 1, one end of the main sleeve 401 close to the driver 3 is connected with an extension sleeve 402, and the other end side wall of the main sleeve 401 is provided with an access hole 416, the access hole 416 is used for facilitating soil to enter the main sleeve 401, one end side wall of the main sleeve 401 close to the driver 3 is provided with a component clamping groove 403, the inner wall of the component clamping groove 403 is provided with a pushing spring sheet 404, one end of the pushing spring sheet 404 far from the main sleeve 401 is provided with a limiting block 405 for limiting the position of the extension sleeve 402, one end of the extension sleeve 402 far from the main sleeve 401 is connected with a discharging cover 406 through a screw thread, and one end of the discharging cover 406 far from the extension sleeve 402 is directly connected with the driver 3;

the length of the drilled outer sleeve 4 can be adjusted according to the use requirement, and the specific operation is that the length of the extended sleeve 402 is directly adjusted, because the extended sleeve 402 comprises two sub sleeves 407 which have the same structure and are connected end to end and form a vertical shape, an inner groove 408 is formed in the inner wall of one end of each sub sleeve 407 close to the main sleeve 401, an accommodating hole 409 for accommodating the limiting block 405 is formed in the inner wall of the inner groove 408, a screwed groove 410 is formed in the outer side wall of the other end of each sub sleeve 407, a limiting block groove 411 is formed in the side wall of the screwed groove 410, a fixing block 412 is installed on the inner wall of the limiting block groove 411 through the pushing elastic sheet 404, the fixing block 412 and the limiting block 405 are identical in structure and working principle, and the automatic scattering can be avoided under the action of external force after the extended sleeve 402 is assembled or the extended sleeve 402 and the main sleeve 401 are assembled.

Therefore, only one end of the first sub-sleeve 407 with the inner groove 408 is correspondingly spliced with one end of the second sub-sleeve 407 with the screwing groove 410, when the first sub-sleeve 407 and the second sub-sleeve 407 are spliced together, the two sub-sleeves 407 are connected end to end through threads to form a vertical shape, when the first sub-sleeve 407 and the second sub-sleeve 407 are screwed together to be immovable, the inner wall of the inner groove 408 presses the fixing block 412, so that the fixing block 412 and the pushing spring plate 404 are compressed to completely enter the block limiting groove 411, then after the accommodating hole 409 on the inner wall of the inner groove 408 contacts the fixing block 412, the pushing spring plate 404 is reset and pushes the fixing block 412 to be clamped into the accommodating hole 409, and then the two sub-sleeves 407 cannot move any more (i.e., no matter the fixing block moves along the direction between the two sub-sleeves 407 or moves against the direction of the threads between the two sub-sleeves 407, and the two sub-sleeves 407 cannot move relative to each other because of the fixing block due to the existence of the fixing block 412, and once the sub-sleeves 407 need to be dismounted, only the fixing block 412 is pushed by an external hard object to slide into the block groove 411 again.

After the length of the extension sleeve 402 is spliced, one end of the extension sleeve 402 with the inner groove 408 can be screwed with one end of the main sleeve 401 with the limiting block 405, when the extension sleeve is moved to be incapable of moving continuously, the limiting block 405 can be clamped into the accommodating hole 409 under the action of pushing the elastic sheet 404 so as to limit the extension sleeve 402 and the main sleeve 401, finally, the discharge cover 406 is connected with the other end of the extension sleeve 402, because one end of the discharge cover 406 close to the extension sleeve 402 is provided with a stepped hole 413 with threads inside, the inner wall of the stepped hole 413 is provided with a fixed block hole 414, a discharge hole 415 communicated with the stepped hole 413 is arranged above the fixed block hole 414, therefore, the discharging cover 406 is directly screwed on the end of the extension sleeve 402, the position is fixed through the fixed block hole 414 (the fixing principle can refer to the fixing between the two sub-sleeves 407), the driver 3 is connected with the discharging cover 406 after the fixing is finished, and then the spiral soil-taking column 5 is installed, so that the device can be used (the connected structure is specifically shown in fig. 6, in the moving process, the discharging cover 406 rotates, the driver 3 cannot move easily, but the motor in the driver 3 drives the spiral soil-taking column 5 to move), when the device is used, soil brought out by the spiral soil-taking column 5 directly leaks out of the discharging hole 415, and therefore, a guide strip can be installed at the discharging hole 415 to prevent the soil from falling around.

As shown in fig. 1 and 4, the spiral soil taking column 5 includes a main soil taking column 501 and a separate soil taking column 502 which are sleeved in a main sleeve 401, an embedded groove 503 is formed in one end, close to the driver 3, of the main soil taking column 501, a movable groove 504 is formed in the other end of the main soil taking column 501, a sweeping mechanism 8 for sweeping away gravel is installed in the movable groove 504, the separate soil taking column 502 is located in the extension sleeve 402, and two ends of the separate soil taking column 502 are respectively connected with the embedded groove 503 and the discharging cover 406.

The structure of this spiral get earth pillar 5 can change along with the length change of boring into overcoat 4, during its concrete implementation, directly insert the branch that suitable length get earth pillar 502 into embedded groove 503, (the mode of insertive optional screw thread screw in goes on here, so can make the intensity of connecting bigger), when equipment uses, in case bore overcoat 4 and spiral get earth pillar 5 and bore underground, later sweep mechanism 8 and can clean the operation simultaneously for bore into the large granule gravel under overcoat 4 and be swept away, with the life of improve equipment, still can make the soil that takes out at last not have a large amount of large granule gravel simultaneously, can avoid the soil to sample the circumstances emergence of abundant or by the gravel jamming equipment of soil sample from this.

Therefore, when the device is used, the purpose of how much soil can be drilled into and how much soil can be taken out in real time can be achieved, and meanwhile compared with the prior art, for example, the full-automatic soil sampler disclosed in CN203561523U can be freely assembled in length when in use, so that the application range of the device is wider, and when the device is drilled into the soil, gravel in front of the device can be swept away by the sweeping mechanism 8, so that the device cannot be brought into the gravel to damage components in the use process, and when the device passes through an area with more gravel, the device can be normally brought into the soil without being influenced by the gravel.

The soil separating and taking column 502 comprises two spiral columns 505 which are identical in structure, are connected end to end and form a vertical shape, a connecting groove 506 is formed in one end of each spiral column 505, a connecting convex column 507 embedded into the connecting groove 506 is installed at the other end of each spiral column 505, spiral strips 508 are installed on the side walls of the spiral columns 505, after the spiral columns 505 are installed, the two spiral strips 508 and the spiral strips 508 on the side walls of the main soil taking columns 501 can form a complete spiral ring strip, and the specific structure of the soil separating and taking column can be shown in fig. 6.

When the length of the divided earth pillar 502 is adjusted, only the connecting convex pillar 507 on the first spiral pillar 505 is screwed into the connecting groove 506 on the second spiral pillar 505, and then the connecting convex pillar 507 on the second spiral pillar 505 is screwed into the embedded groove 503 at the end of the main earth pillar 501 to realize primary fixation, because the side wall of the connecting convex pillar 507 is provided with the locking groove 509, the inner wall of the locking groove 509 is provided with the push-out spring 510, one end of the push-out spring 510, which is far away from the locking groove 509, is provided with the locking platform 511, and the side wall of the connecting groove 506 is provided with the locking hole 512 for accommodating the locking platform 511, when the connecting convex pillar 507 is screwed into the connecting groove 506, the locking platform 511 can be pressed first to push the push-out spring 510 to be clamped into the locking groove 509, so that the connecting convex pillar 507 can be normally screwed in, and when the connecting convex pillar 507 moves to the locking hole 512 with the locking platform 511, the locking platform 511 can be clamped into the locking hole 512, so as to play a role of fixation again (the whole spiral pillar 5 adopts more than two connection fixation modes to make the service life of the device longer).

As shown in fig. 1 and 2, the sweeping mechanism 8 includes a damping spring 801 mounted on an inner wall of the movable trough 504 and a frustum cover 802 connected to an end surface of the main soil-sampling column 501, a plurality of inclined pieces 803 are penetratingly disposed on a side wall of the frustum cover 802, a pushing column 804 is mounted on one end of the damping spring 801 far from the movable trough 504, and a pushing piece 805 connected to a surface of the inclined piece 803 is mounted on one end of the pushing column 804 far from the damping spring 801.

Get the earth pillar 5 when the spiral and begin rotatory back, frustum cover 802 can block into in the soil earlier, thereby the piece 803 that inclines can be promoted by soil and slide into frustum cover 802 simultaneously, thereby the piece 805 that pushes away can receive the extrusion and thereby push away the post 804 that pushes away and slide into movable groove 504 this moment, damping spring 801 also can receive the extrusion simultaneously, in order to play absorbing effect, and frustum cover 802 takes the rotatory in-process of piece 803 that inclines to sweep away a large amount of large-grained stones, in order to avoid the sample nonconforming circumstances such as that takes out at last to take place.

The inclined piece 803 is in a T-shaped structure, so that the inclined piece 803 can be sufficiently clamped inside the frustum cover 802, and the frustum cover 802 cannot be easily pushed out by the pushing piece 805, and the side wall of the main sleeve 401 close to one end of the frustum cover 802 is an inclined surface, so that the main sleeve 401 can conveniently drill into the ground.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The geological survey device is characterized by comprising a bearing frame (1) and a soil taking mechanism (2) which is connected to the center of the bearing frame (1) in a penetrating manner, wherein a driver (3) is connected to the top end of the soil taking mechanism (2);

the soil taking mechanism (2) comprises a drilling outer sleeve (4) which is in threaded connection with the center of the bearing frame (1) and a spiral soil taking column (5) which is directly connected with an output shaft of the driver (3), a driving disc (6) which is used for driving the drilling outer sleeve (4) to drill underground is sleeved on the outer side of the drilling outer sleeve (4), the driving disc (6) is located on the upper surface of the bearing frame (1), a limiting frame (7) which limits the driving disc (6) is installed on the upper surface of the bearing frame (1), the spiral soil taking column (5) is sleeved on the inner side of the drilling outer sleeve (4), and one end, close to the driver (3), of the spiral soil taking column (5) is connected with the inner wall of the end part of the drilling outer sleeve (4);

the drilling outer sleeve (4) comprises a main sleeve (401) which penetrates through the center of the bearing frame (1), one end, close to the driver (3), of the main sleeve (401) is connected with an extension sleeve (402), an access hole (416) is formed in the side wall of the other end of the main sleeve (401), one end, close to the driver (3), of the main sleeve (401) is provided with a component clamping groove (403), the inner wall of the component clamping groove (403) is provided with a pushing elastic sheet (404), one end, far away from the main sleeve (401), of the pushing elastic sheet (404) is provided with a limiting block (405) used for limiting the position of the extension sleeve (402), one end, far away from the main sleeve (401), of the extension sleeve (402) is connected with a discharging cover (406) through threads, and one end, far away from the extension sleeve (402), of the discharging cover (406) is directly connected with the driver (3);

the spiral soil taking column (5) comprises a main soil taking column (501) and a branch soil taking column (502) which are sleeved in a main sleeve (401), an embedded groove (503) is formed in one end, close to the driver (3), of the main soil taking column (501), a movable groove (504) is formed in the other end of the main soil taking column (501), a sweeping mechanism (8) used for sweeping gravel is installed in the movable groove (504), the branch soil taking column (502) is located in the extension sleeve (402), and two ends of the branch soil taking column (502) are respectively connected with the embedded groove (503) and the discharging cover (406);

one end of the discharging cover (406) close to the extension sleeve (402) is provided with a stepped hole (413) with threads arranged inside, the inner wall of the stepped hole (413) is provided with a fixed block hole (414), and a discharging hole (415) communicated with the stepped hole (413) is arranged above the fixed block hole (414);

extension cover (402) include that two structures are the same and end to end connection and form vertical form branch cover (407), divide cover (407) to be close to the one end inner wall of main cover (401) and seted up inner groovy (408) inner groove (409) are seted up to the inner wall of inner groove (408) and are held the accommodation hole (409) that limit piece (405) held, the other end lateral wall that divides cover (407) is seted up and is had spiral groove (410) limit piece groove (411) are seted up to the lateral wall that spirals groove (410) the inner wall of limit piece groove (411) passes through it installs fixed block (412) to promote shell fragment (404).

2. A geological survey device according to claim 1, characterized in that said column (502) comprises two vertically arranged spiral columns (505) having the same structure and connected end to end, wherein one end of said columns (505) is provided with a connecting groove (506), and the other end of said columns (505) is provided with a connecting convex column (507) embedded in said connecting groove (506), and the side wall of said columns (505) is provided with spiral strips (508).

3. The geological survey device as claimed in claim 2, wherein the side wall of the connecting convex column (507) is provided with a locking groove (509), the inner wall of the locking groove (509) is provided with a push-out spring (510), one end of the push-out spring (510) far away from the locking groove (509) is provided with a locking platform (511), and the side wall of the connecting groove (506) is provided with a locking hole (512) for accommodating the locking platform (511).

4. A geological survey device according to claim 1, characterized in that said sweeping mechanism (8) comprises a damping spring (801) mounted on the inner wall of said movable groove (504) and a frustum cover (802) connected with the end face of said main soil-extracting column (501), several inclined plates (803) are penetratingly arranged on the side wall of said frustum cover (802), a pushing column (804) is mounted on the end of said damping spring (801) far from said movable groove (504), and a pushing plate (805) connected with the surface of said inclined plate (803) is mounted on the end of said pushing column (804) far from said damping spring (801).

5. A geological survey according to claim 4, characterized in that said tilted sheets (803) are in T-shaped configuration.