KR101463185B1 - Soil sampling mechanism - Google Patents

Abstract

The present invention relates to a soil sampling device, and more preferably, when a sample for surveying a cross section of a sediment such as sand, clay, or gravel is sampled by drilling, the sediment is prevented from collapsing on the side wall of the borehole, A sample tube for collecting a soil sample is cut at an upper side and a lower side opposite to the one side is cut into a half of the thickness of the sample tube so that the sample tube It is possible to accurately observe an incision section of the salvaged sample, to prevent the sample tube from moving upward when the soil sample is sampled and to fix it with the stationary ring, and at the same time, when the soil sample is lifted to the ground, So that they can be prevented from flowing down by the catcher.

Description

{Soil sampling mechanism}

The present invention relates to a soil sampling device, and more preferably, when a sample for surveying a cross section of a sediment such as sand, clay, or gravel is sampled by drilling, the sediment is prevented from collapsing on the side wall of the borehole, A sample tube for collecting a soil sample is cut at an upper side and a lower side opposite to the one side is cut into a half of the thickness of the sample tube so that the sample tube It is possible to accurately observe an incision section of the salvaged sample, to prevent the sample tube from moving upward when the soil sample is sampled and to fix it with the stationary ring, and at the same time, when the soil sample is lifted to the ground, So that they can be prevented from flowing down by the catcher.

Generally, the process of collecting sediment samples while forming a borehole in a sediment layer must be performed to determine the optimum conditions necessary for the design of all civil engineering works. Sampling processes have been essential to obtain data.

In this sampling process, a tubular sampler that receives impact or rotational force in the state of being connected to the power means is penetrated into the stratum, and the stratum of the depth penetrated into the sampler is filled with the sampler. It is extracted from the ground and the stratum of the sample is confirmed from the outside.

According to Korean Utility Model Laid-Open No. 1998-0059576, there are provided a cylindrical outer tube (1), a bit (2) coupled to a lower end portion of the outer tube to bear a penetration resistance, A cylindrical barrel 3 made of a transparent plastic material to be inserted into the tube and a cap 4 fixed to the upper end of the outer tube so as not to move the barrel, So that it can be collected.

According to the above-mentioned prior art, cost reduction, ease of transportation and handling are ensured by using a barrel made of plastic material which is light and easy to handle and easy to handle, and transparent barrel is used to grasp the sample and facilitate sample preservation It is possible to perform continuous drilling by replacing the barrel, so that the drilling operation can be performed very easily.

However, since the cylindrical barrel 3 is integrally fixed to the inside of the outer tube 1 as shown in Fig. 1, it is difficult to continuously collect samples of the deep layer and the barrel 3 It is very difficult to take out the sample such as to shake off the outside of the barrel 3 while tapping the outside of the barrel 3 to remove the core (sample).

When the core (sample) is disturbed when separating the cylindrical barrel 3 from the outer tube 1 or when the outer tube 1 is lifted to the ground, the sample filled in the cylindrical barrel 3 flows downward There was a problem that the layer of sediments could not be confirmed.

Thus, a soil sampler of Korean Patent No. 10-0848876 is disclosed. However, when the sampler was taken out of the sampler from which the soil sample was sampled, there was no tool to pull out the sampler.

1. Domestic Public Utility Model No. 20-1998-0059576 2. Domestic Registration No. 10-0848876 3. Korean Patent No. 10-1334041

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a sample tube for cutting a sample tube, The bottom side of the opposite side is inserted with a half of the thickness of the sample tube, and after collecting the soil sample with the sample tube, the sample tube is divided into a columnar shape easily and the section of the soil sample is observed accurately To be able to do so.

It is another object of the present invention to make it possible to simply take out a soil sample from a sampler using a soil sampler, and then draw the sampler from a sampler.

That is, the sample tube is pressed with a circular pressure gauge fitted to the diameter of the sample tube so that the circular sample tube can be squeezed, and then the sample tube can be easily withdrawn from the soil sampler using the handle.

The purpose of this study is to equip the sample tube with the fixing ring on the upper part of the sample tube inserted in the soil sampler so that the soil sample can be collected without the elevation of the sample tube when the soil sample is sampled by the sample tube .

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As shown in FIG. 2, the present invention is a soil sampler connected to a power unit and sampling a sample while penetrating into a ground layer by a hitting or rotating force,

A bit excavation pipe 10 in which a core catcher 70 is installed in the step 12 so as to prevent the collected soil sample from flowing down,

A sampler tube 20 having a bit 11 mounted on the tip of the bit excavation tube 10 and a screw connection on the rear end thereof,

A casing pipe (30) threadedly connected to the sampler tube (20)

A sample tube 40 for sampling a soil sample, which is formed on the upper side of the core catcher 70 inserted in the bit excavation pipe 10 and inserted into the sampling pipe 20 and the casing pipe 30,

A holding ring 50 formed on the upper side of the sample tube 40 and formed on the lower surface of the casing pipe 30 to prevent the sample tube 40 from rising to the upper side of the casing pipe 30, ,

(60) for pressing the outer circumferential surface of the sample tube (40) to draw the sample tube (40).

The upper surface 41 of the sample tube 40 is cut by the sample tube cutter and the lower surface 42 opposite to the one side surface 41 is cut by the sample tube cutter. The sample tube 40 can be easily divided into half after the soil sample is cut by cutting one-half of the thickness of the tube 40.

The pressure gauge 60 of the present invention includes an arc-shaped pressing member 62 formed in an arcuate shape so as to oppose each other around the hinge 61 so as to be able to grip the sample tube 40, And a grip portion 63 formed on the rear side of the inter-working space 64. The grip portion 63 is provided with a grip portion 63,

The inner surface of the pressing portion 60 of the present invention is formed of a plurality of recesses 62a and convex portions 62b to prevent the sample tube 40 from slipping when it is pressed.

The fixed ring 50 of the present invention is formed such that the inclined surface 52 is formed thicker toward the inner side along the ring surface 51 of the outer circumferential surface so that the sample tube 40 closely contacts the ring surface 51 .

Since the core catcher is formed inside the lower bit excavation tube of the sample tube for collecting the soil sample, it is possible to prevent the soil sample from flowing downward after collecting the soil sample in the sample tube. .

In addition, since the stationary ring is formed on the upper side of the sample pipe inserted into the casing pipe, the sample pipe is prevented from rising upward when the sample pipe penetrates into the ground or the soil sample is taken, There is an effect that a section can be collected.

In addition, the sample tube of the present invention is cut at the upper one side and the lower side opposite to the one side is cut in half of the thickness of the sample tube. Therefore, after collecting the soil sample, And thus it is possible to observe the cross section of the soil sample.

In addition, the present invention has an effect that a sample pipe inserted into a casing pipe, which is a soil sampler, can be drawn out from a casing pipe simply by using a pressure gauge.

1 is a sectional view showing a conventional soil collector.
2 is a cross-sectional view showing a section of a soil collector according to the present invention.
3 is a side view of a core catcher according to the present invention.
4 is a sectional view of a sample tube according to the present invention in a state in which it is divided.
5 is a perspective view of a retaining ring according to the present invention.
FIG. 6 is a perspective view showing the pressure zone according to the present invention. FIG.
FIG. 7 is an exploded perspective view showing a soil sampler according to the present invention.

Hereinafter, preferred embodiments of a soil sampling device according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 2 to 6, a soil excavation pipe 10 for excavating a ground with a bit 11 and penetrating the casing pipe 30 into the ground A sampling pipe 30 connected to the sampling pipe 20 connected to the bit excavation pipe 10 and a sampling pipe 30 connected to the sampler pipe 20, And a sample pipe inserted into the sampling pipe (20) and the casing pipe (30) for collecting the soil sample, the core pipe (70) being mounted on the core catcher (70) And a pressure gauge 60 for withdrawing the sample tube 40 from the casing pipe 30.

As shown in Figs. 2 and 7, the casing pipe 30 according to the present invention has a cylindrical shape with a vertical length, and a screw And is formed into a cylindrical shape.

Therefore, a plurality of casing pipes 30 can be screwed together to be able to penetrate the depth of the ground. At this time, the casing pipe 30, which is threadedly connected at the upper side of the casing pipe 30, is formed so as to protrude inward so as to be caught and fixed to the bottom surface of the casing pipe 30 to which a fixing ring 50 .

As shown in FIGS. 2 and 7, the sampler tube 20 connected to the casing pipe 30 is constructed by connecting a casing pipe 30 with a lower portion of the casing pipe 30 in a threaded manner. At this time, the sampler tube 20 is constructed such that a sample tube 40 for sampling a soil sample to be described later is inserted therein.

2, a bit excavation pipe 10 for excavating the ground is connected to the lower portion of the sampler tube 20 by a screw connection. A plurality of bits 11 are installed on the bottom surface of the bit excavation pipe 10 to excavate the ground.

In addition, a step 12 is formed in the bit excavation pipe 10 so that a core catcher 70 described later is seated.

The core catcher 70 is provided with a ring-shaped catcher body 71 mounted on a lower portion of a sample pipe 40 and a bit excavation pipe 10 to be described later, A hemispherical net 73 is connected to the upper center of the catcher body 71 from the upper end thereof to which a plurality of cut-away plates 72 are connected.

The upper surface of the catcher body 71 is hooked on the lower surface of the sample tube 40 and the lower surface of the catcher body 71 is hooked on the step 12 to be fixed.

When the sample enters the sample pipe 40 from the lower portion of the bit excavation pipe 10, the upper portion of the hemispherical net 73 is opened and the core catcher When the casing pipe 30, the sampler tube 20, and the bit excavation tube 10, which have been inserted into the openings 70, are returned to the hemispherical shape, they are pressed downward by the weight of the sample, .

More specifically, the netting 73 is formed by fixing the end portions of the cut-away plates 72, which are formed by cutting a plurality of thin metals, at uniform intervals along the upper circumference of the catcher body 71, And the end portions of the cut-away plates 72 extend in a curved line and come into contact with each other to form a hemispherical shape so as to be like a spout.

In other words, when the sample enters the sample pipe 40 and is filled through the lower portion of the bit excavation pipe 10, the netting plate 72 constituting the net body 73 is raised The net 73 of the net 73 is opened so that the net 73 can easily pass through the sample and the sample pipe 30, the sampler tube 20 and the bit excavation tube 10 are lifted to the ground. 72 are returned to the hemispherical shape and the distance between the cut-away plates 72 of the net 73 is further narrowed by the weight of the sample to be lifted so that the sample does not flow down to the lower side of the net 73.

The sample tube 40 is preferably made of a transparent or semitransparent synthetic resin material, but it may be made of other materials and colors.

In order to make it easy to observe a section of the soil sample stored in the sample pipe 40 after the collection of the soil sample without disturbance, the upper side surface 41 of the sample pipe 40, And the lower side surface 42 corresponding to the one side surface 41 is cut by a half of the thickness of the sample tube 40 so that the sample tube 40 can be easily divided by half .

In addition, a stationary ring 50 is fixedly mounted on the top of the sample tube 40 to prevent the sample tube 40 from moving to the top of the casing pipe 30 during soil sampling.

That is, when the casing pipe 30 and the casing pipe 30 are screwed together and coupled together, the fixing ring 50 is caught and fixed to the bottom surface of the upper casing pipe 30, The stationary ring 50 can not move upward and can accurately collect the section of the soil sample in a fixed state.

The stationary ring 50 is formed with a ring surface 51 on the outer circumferential surface so as not to flow while fixing the sample tube 40 and forms an inclined surface 52 toward the inner side of the ring surface 51, The sample tube 40 adhered to the ring surface 51 is caught by the inclined surface 52 to be fixed without being flowed because the thickness of the inner circumferential surface is made thicker than the thickness of the outer circumferential surface of the sample tube 50. [

When the sample pipe (40) inserted into the casing pipe (30) is taken out after collecting the soil sample, the pressure platform (60) used is formed to be rotatable around the hinge (61) And a grip portion 63 is formed on the rear side of the arc-shaped pressing member 62 to press the grip portion 63 to press the arc-shaped pressing member 62 62 so that the sample tube 40 can be drawn out. At this time, the arch-shaped paper clipping member 62 and the grip portion 63 are connected to each other by the operation gap 64.

Hereinafter, an embodiment of the operating state according to the present invention will be described in detail.

As shown in FIG. 1, the soil sampler 100 is inserted into a ground layer to be excavated. At this time, a stratum is excavated by a plurality of bits 11 formed on the bottom surface of the bit excavation pipe 10 by applying impact and rotational force, and a sampler pipe 20 and a casing pipe 30 connected to the bit excavation pipe 10 are penetrated . At this time, as deeply penetrated into the stratum, the casing pipes 30 are screwed together and penetrated.

A soil sample is introduced into the bit excavation pipe 10 while the bit excavation pipe 10 is excavating the ground layer and the induced soil sample is introduced into the wicked netting 72 of the cut plate 72 constituting the core catcher 70 (73) and stored in the sample tube (40). After the soil sample is stored in the sample pipe 40, the cutter plate 72, which constitutes the netting 73 of the core catcher 70, returns to its original position and becomes hemispherical again.

When the casing pipe 30 is lifted to the ground, the hemispheres formed by the cut-away plates 72 made of metal are flattened by the weight of the soil sample in a state where the upper portion of the net body 73 is closed, So that the intervals become narrower. Thus, the casing pipe 30 can be lifted in a state in which the soil sample does not flow down to the lower portion of the net body 73.

After lifting the casing pipe 30, the sampler tube 20 coupled to the casing pipe 30 is threadedly separated, the sample tube 40 is taken out of the casing pipe 30, 40) of the soil sample.

At this time, since the sample pipe 40 in which the soil sample is stored is not easy to be taken out from the casing pipe 30, the present invention uses the pressure pipe 60 for taking out the sample pipe 40.

7, after the arc-shaped pressing member 62 formed in front of the pressing portion 60 is spread by the grip portion 63 and brought into close contact with the outer circumferential surface of the sample tube 40, the grip portion 63 The user presses the arc-shaped pressure-sensitive paper member 62 firmly against the sample tube 40 to hold the grip 63 and pull the sample tube 40 out of the casing pipe 30.

Then, the sample pipe 40 filled with the soil sample itself can be stored and transported, or the sample pipe 40 can be divided into a circumference of 1/2, so that the soil sample can be taken out, and the cross-section of the sample can be immediately confirmed.

As a result, the soil sampler 100 of the present invention can prevent the sediment collapse on the sidewalls of the boreholes during drilling and continuously collect samples to a deep place. Using the divided sample tube 40, It is possible to observe the surface accurately and to prevent the collected sample from flowing down to the ground when it is lifted to the ground.

In addition, the sample pipe 40 in which the soil sample is stored can be easily taken out from the casing pipe 30 by using the pressure area 60 to easily observe the cross section of the soil sample in the sample pipe 40 will be.

Although the present invention having been described above has been described with reference to a limited number of embodiments, it is to be understood that the present invention is not limited thereto and that various changes and modifications may be made without departing from the spirit and scope of the present invention by those skilled in the art. Various modifications and variations are possible within the scope of the appended claims.

10. Bit excavation tube 11. Bit
12. Step 20. Sampler tube
30. Casing pipe 40. Sample pipe
41. One side 42. Other side
50. Retaining ring 51. Ring surface
52. slope 60. crest
61. Hinge 62. Arcuate-
62a. Lumbar 62b. Convex
63. Handle 70. Core catcher
71. The body of the coach 72. The cutout
73. The net

Claims (5)

A soil sampler connected to a power unit and sampling a sample while penetrating into a ground layer by a hitting or rotating force,
A bit excavation pipe 10 in which a core catcher 70 is installed in the step 12 so as to prevent the collected soil sample from flowing down,
A sampler tube 20 having a bit 11 mounted on the tip of the bit excavation tube 10 and a screw connection on the rear end thereof,
A casing pipe (30) threadedly connected to the sampler tube (20)
A sample tube 40 for sampling a soil sample, which is formed on the upper side of the core catcher 70 inserted in the bit excavation pipe 10 and inserted into the sampling pipe 20 and the casing pipe 30,
A holding ring 50 formed on the upper side of the sample tube 40 and formed on the lower surface of the casing pipe 30 to prevent the sample tube 40 from rising to the upper side of the casing pipe 30, ,
(60) for pressing the outer circumferential surface of the sample tube (40) to draw the sample tube (40)
The sample tube 40 is cut by the sample tube cutter so that the upper side 41 of the sample tube 40 is cut and the lower side surface 42 of the sample tube 40 opposite to the one side surface 41 is cut And the sample tube 40 can be easily divided into a half of the sample tube 40 after collecting the soil sample. delete The method according to claim 1,
The pressure gauge 60 includes an arc-shaped pressing member 62 formed in an arcuate shape so as to oppose each other around the hinge 61 so as to be capable of pressing the sample tube 40, And a grip portion (63) formed at the rear of the operation space (64), respectively. The method according to claim 1,
Wherein a plurality of recesses (62a) and convex portions (62b) are formed on the inner side surface of the pressure gauge (60) to prevent slipping when the sample tube (40) is pressed. The method according to claim 1,
The stationary ring 50 is formed such that the inclined surface 52 is formed thicker toward the inner side along the ring surface 51 of the outer circumferential surface so that the sample tube 40 is fixedly attached to the ring surface 51 Soil sampling equipment.

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