CN211652148U

CN211652148U - Ground sampling device for geological exploration

Info

Publication number: CN211652148U
Application number: CN202020178309.0U
Authority: CN
Inventors: 刘双红; 康卫; 李冬; 付小畅; 雪斌; 蒋蕤
Original assignee: China Construction Fourth Engineering Division Corp Ltd
Current assignee: China Construction Fourth Engineering Division Corp Ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-10-09
Anticipated expiration: 2030-02-18

Abstract

The utility model relates to a rock soil sampling device for geological exploration, which comprises a base, a left/right side plate, a drilling machine, a sampling cylinder, a sliding seat and a transmission rod; the left/right side plates are vertically provided with two parallel sliding grooves, the sliding seat is horizontally erected between the left/right side plates through the sliding grooves, a drilling machine is fixed on the sliding seat, a rotating shaft of the drilling machine penetrates through the sliding seat downwards and then is connected with a transmission rod, the tail end of the transmission rod is connected with a sampling cylinder, and a cylinder opening of the sampling cylinder penetrates through the base and then is vertically downward; the sampler barrel comprises the semicircle section of thick bamboo about by the symmetry, its radially has seted up the round recess, recess internal fixation staple bolt is used for accomplishing about the semicircle section of thick bamboo fixed, the sampler barrel outer wall is provided with bellied external screw thread, the sampler barrel inner wall is provided with the thread groove the same with external screw thread direction of spiral, be provided with the pawl according to direction of spiral in the thread groove, this scheme is through setting up threaded form inside and outside the sampler barrel, make the sampler barrel withdraw from the sample with the reversal mode, can avoid the unable and rock layer cracked problem of sample, thereby realize disposable sample.

Description

Ground sampling device for geological exploration

Technical Field

The utility model relates to a geological exploration field, concretely relates to ground sampling device for geological exploration.

Background

The geological exploration is investigation and research activities of surveying and detecting geology through various means and methods, determining a proper bearing stratum, determining a foundation type according to the foundation bearing capacity of the bearing stratum and calculating foundation parameters. The method is to find an industrially significant mineral deposit in mineral census, provide mineral reserves and geological data required by mine construction design for finding out the quality and quantity of the mineral and technical conditions of mining and utilization, and carry out investigation and research work on geological conditions such as rocks, strata, structures, mineral products, hydrology, landforms and the like in a certain area. In the analysis process, layered sampling is needed to be carried out on the geology, and a drill barrel with threads is generally adopted for sampling at present. The power mode is also different for different geological types, and the soil is generally sampled by manual rotation, and the soil is driven by a motor only for rocks.

The disadvantages of the prior art are that:

for sampling in the rock, in the process of retreating after the traditional drill barrel drills, because the hardness of a rock sample is high, the rock sample in the drill barrel cannot be broken with a rock layer, so that the phenomenon that the drill barrel does not have a sample after retreating is caused, the sample needs to be taken out by means of other tools, and the construction is slow.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provides a ground sampling device for prospecting, through the form that sets up the screw thread inside and outside the sampler barrel for the sampler barrel withdraws from the sample with the reversal mode, can avoid the sample can't with the cracked problem of rock layer, thereby realizes once only taking a sample.

The purpose of the utility model is realized through the following technical scheme:

a rock-soil sampling device for geological exploration comprises a base, a left side plate, a right side plate, a drilling machine, a sampling cylinder, a sliding seat and a transmission rod, wherein the left side plate and the right side plate are vertically arranged on two sides of the base;

the left side plate and the right side plate are vertically provided with two parallel sliding grooves, the sliding seat is horizontally erected between the left side plate and the right side plate through the sliding grooves, the drilling machine is fixed on the sliding seat, a rotating shaft of the drilling machine penetrates through the sliding seat downwards and then is connected with the transmission rod, the tail end of the transmission rod is connected with the sampling cylinder, and a cylinder opening of the sampling cylinder penetrates through the base and then is vertically downward;

the sampler barrel comprises the semicircle tube about by the symmetry, and its radially has seted up the round recess, and recess internal fixation staple bolt is used for accomplishing the semicircle tube is fixed about, the sampler barrel outer wall is provided with bellied external screw thread, the sampler barrel inner wall be provided with the thread groove that external screw thread screw direction is the same, be provided with the pawl according to the screw direction in the thread groove.

This scheme is through setting up at the sampling tube inner wall and withdrawing from the pawl that spiral opposite direction is reverse with the sampling tube to make and bore the in-process, ground powder is filled between the pawl, and when the antiport rotated, the great friction of formation between pawl and the sample guaranteed that the sample post can not fall out by the pulling force on ground layer, thereby makes its and ground layer fracture under the antiport of rig, reaches the sample purpose. After sampling, the left and right semi-cylinders are loosened to take out the sample.

Further, the tooth space height of the inverted tooth is lower than the depth of the thread groove, and the design aims to avoid the inverted tooth from extending out of the inner wall to cause large abrasion.

Further, be provided with one section of spacing section of thick bamboo on the base perpendicularly, the sampler barrel passes spacing section of thick bamboo is perpendicular downwards, the internal diameter of spacing section of thick bamboo with the sampler barrel external diameter is the same, and spacing section of thick bamboo's effect is the fixed of guaranteeing the sampling point, avoids the sampler barrel incline, makes its perpendicular downwards

Furthermore, the transmission rod adopts a multi-section structure, multi-section connection is carried out according to the sampling depth, and the diameter of the transmission rod is smaller than the outer diameter of the sampling tube.

Furthermore, two guide posts are arranged at two ends of the sliding seat respectively and are positioned in the sliding groove, and the left side and the right side of the sliding seat are abutted against left/right side plates of the corresponding side. The structural design can ensure that the sliding seat can stably descend in the drilling process and can stably ascend in the withdrawing process

Furthermore, the sampling cylinder and the transmission rod are fixedly connected through the bolts, and the sampling cylinder can be quickly replaced, so that multiple times of sampling can be realized.

Furthermore, the sampling tube outside is provided with two rings at least recesses, and the design of half cylinder butt joint department is mortise-tenon joint structure about controlling.

Compare with current sampler barrel the beneficial effects of the utility model are that:

(1) the spiral groove and the inverted tooth structure are designed, so that the sample can not fall out in the withdrawing process of the sampling cylinder, and one-time sampling is realized;

(2) the sampling cylinder consisting of the left half cylinder and the right half cylinder is adopted, the layered structure of the sample can be perfectly ensured in the sample obtained by taking out, and the problem that the traditional sampling cylinder needs to break or destroy the sample and then take out the sample is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the inner wall of the sample;

FIG. 3 is a schematic view of the structure of the thread groove in the sampling tube;

fig. 4 is a schematic view of a side panel structure.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in figure 1, the geotechnical sampling device for geological exploration comprises a base 1, a left/right side plate 2 vertically arranged on two sides of the base 1, a drilling machine 3, a sampling cylinder 4, a sliding seat 5 and a transmission rod 6. The base 1 is horizontally arranged, as shown in fig. 4, the left/right side plates 2 are symmetrical to each other, the left/right side plates 2 are vertically provided with two parallel sliding grooves 21, two ends of the sliding base 5 are respectively provided with two guide pillars 51, the guide pillars 51 are positioned in the sliding grooves 21, the left and right sides of the sliding base 5 are abutted to the left/right side plates 2 on the corresponding sides, so that the sliding base 5 is horizontally erected between the left/right side plates 2 through the sliding grooves 21 of the guide pillars 51 and can be lifted up and down along the sliding grooves 21 in the vertical direction. The drilling machine 3 is fixed on the sliding seat 5, the rotating shaft of the drilling machine 3 penetrates through the sliding seat 5 downwards and then is connected with the transmission rod 6, a through hole is formed in the middle of the sliding seat 5, and the rotating shaft of the drilling machine 3 extends out of the through hole in the axial direction and is vertically downward. The tail end of the transmission rod 6 is connected with the sampling tube 4, the opening of the sampling tube 4 is vertically downward after penetrating through the base 1, a section of limiting tube 11 is vertically arranged on the base 1, the sampling tube 4 penetrates through the limiting tube 11 and vertically downward, and the inner diameter of the limiting tube 11 is the same as the outer diameter of the sampling tube 4. The sampler barrel 4 comprises the semicircle tube about by the symmetry, its radially has seted up round recess 44, recess 44 internal fixation staple bolt 7 is used for accomplishing about the semicircle tube fixed, wherein, the 4 outsides of sampler barrel are provided with two rings at least recesses 44, control the design of semicircle tube butt joint department for tenon fourth of the twelve earthly branches butt joint structure to stability between the semicircle tube about the reinforcing, in order to improve the structural stability of

sampler barrel

4, 4 thickness of sampler barrel in this scheme compare thickly with traditional sampler barrel. As shown in fig. 3, the outer wall of the sampling tube 4 is provided with a raised external thread 41, the inner wall of the sampling tube 4 is provided with a thread groove 42 having the same spiral direction as the external thread 41, the thread groove 42 is internally provided with a pawl 43 in the spiral direction, and the height of the tooth space of the pawl 43 is lower than the depth of the thread groove 42. The transmission rod 6 adopts a multi-section structure, multi-section connection is carried out according to sampling depth, the diameter of the transmission rod 6 is smaller than the outer diameter of the sampling barrel 4, and the sampling barrel 4 is fixedly connected with the transmission rod 6 through bolts.

The foregoing is merely a preferred embodiment of the invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to limit the invention to other embodiments, and to various other combinations, modifications, and environments and may be modified within the scope of the inventive concept as described herein by the teachings or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A rock-soil sampling device for geological exploration is characterized by comprising a base (1), a left/right side plate (2) vertically arranged on two sides of the base (1), a drilling machine (3), a sampling cylinder (4), a sliding seat (5) and a transmission rod (6);

the left side plate and the right side plate (2) are vertically provided with two parallel sliding grooves (21), the sliding seat (5) is horizontally erected between the left side plate and the right side plate (2) through the sliding grooves (21), the drilling machine (3) is fixed on the sliding seat (5), a rotating shaft of the drilling machine (3) penetrates through the sliding seat (5) downwards and then is connected with the transmission rod (6), the tail end of the transmission rod (6) is connected with the sampling cylinder (4), and a cylinder opening of the sampling cylinder (4) penetrates through the base (1) and then is vertically downward;

the sampling tube (4) comprises the left and right symmetrical semi-cylinders, a circle of groove (44) is radially formed in the outer wall of the sampling tube, a hoop (7) is fixed in the groove (44) and used for fixing the left and right semi-cylinders, a raised external thread (41) is arranged on the outer wall of the sampling tube (4), a thread groove (42) which is the same as the spiral direction of the external thread (41) is formed in the inner wall of the sampling tube (4), and inverted teeth (43) are arranged in the thread groove (42) according to the spiral direction.

2. The geotechnical sampling device for geological exploration according to claim 1, wherein the height between teeth of said inverted tooth (43) is lower than the depth of said thread groove (42).

3. The geotechnical sampling device for geological exploration according to claim 2, characterized in that a section of limiting cylinder (11) is vertically arranged on the base (1), the sampling cylinder (4) penetrates through the limiting cylinder (11) to vertically face downwards, and the inner diameter of the limiting cylinder (11) is the same as the outer diameter of the sampling cylinder (4).

4. A geotechnical sampling device according to claim 3 wherein, the driving rod (6) adopts a multi-segment structure, and is connected in multiple segments according to sampling depth, and the diameter of the driving rod (6) is smaller than the outer diameter of the sampling cylinder (4).

5. The geotechnical sampling device for geological exploration according to claim 1, wherein two guide posts (51) are respectively arranged at two ends of the sliding base (5), the guide posts (51) are positioned in the sliding grooves (21), and the left side and the right side of the sliding base (5) are abutted with the left side plate/right side plate (2) at the corresponding side.

6. The geotechnical sampling device for geological exploration according to claim 1, characterized in that the sampling cylinder (4) and the transmission rod (6) are fixedly connected through bolts.

7. The geotechnical sampling device for geological exploration according to claim 1, wherein at least two circles of grooves (44) are formed in the outer side of the sampling cylinder (4), and the butt joint of the left half cylinder and the right half cylinder is designed into a mortise-tenon joint structure.