Soil sampling equipment for karst geology

Abstract

The invention relates to soil sampling equipment, in particular to soil sampling equipment for karst geology, which comprises a barrel, the barrel is provided with two sampling sections, the two sampling sections are in contact with each other, each sampling section is provided with a plurality of barrel parts, long rods are slidably connected in the barrel parts, and when the two sampling sections are far away from each other, soil sampling is performed on the side wall of soil between the sampling sections; the device further comprises an auger and an inflatable air bag. Soil in the cylinder body is transferred through the auger; the bottom of the auger is communicated with an inflatable airbag. The barrel is inserted into soil, the soil in the barrel is taken out through the auger and the inflatable air bag, then the sampling sections are controlled to be separated from one another, the side wall of the soil is exposed, and then the sampling shell is controlled to be inserted into the soil on the side wall of a drill hole for sampling; the problem that all layers of soil are mixed does not exist in the obtained soil, and the problem that the sampled soil is pressed to be particularly compact does not exist.

Description

Technical Field

[0001] The present invention relates to soil sampling equipment, and particularly to a soil sampling equipment for karst geology. Background Art

[0002] To fully understand the soil conditions in karst geological areas, soil sampling work needs to be carried out in karst geological areas; In the prior art, a geotechnical sampler for geological exploration disclosed in Chinese Patent No. CN119510028A has a number of detachable drill shaft modules arranged between a drill bit module and a drill arm module. It can not only adjust the sampling depth of the drilling bit according to the actual exploration environment, but also cooperate with a triggering component to simultaneously sample all depth positions in the borehole to obtain stratified samples of the geotechnical structure.

[0003] However, the implementation of this patent has the following problems: 1. When the drilling bit drills into the soil, it cannot take out the soil from the borehole. In the presence of soil, it is difficult to deploy the sampling mechanical structure, affecting the sampling work of the soil on the side wall (the soil at the side wall of the borehole); 2. When the drilling bit drills into the soil, it will mix the soil at different depths, resulting in a mixed situation of the sampled side wall soil. Summary of the Invention

[0004] To solve the technical problems mentioned in the background, the present invention provides a soil sampling equipment for karst geology, including a cylinder body; the cylinder body has two sampling sections that are in contact with each other. Each sampling section is provided with a plurality of cylinder parts, and a long rod is slidably connected in the cylinder part. When the two sampling sections move away from each other, soil sampling is carried out on the soil side wall between the sampling sections; it also includes a dragon and an inflatable airbag; the soil in the cylinder body is transferred by the dragon; the bottom of the dragon is connected to the inflatable airbag.

[0005] Optionally, it further includes a vertical connecting frame, a pushing component and a sampling housing; a pushing component is installed on the vertical connecting frame, and the moving part of the pushing component is fixedly connected to the sampling housing, and the sampling housing is pushed by the pushing component to insert into the soil side wall for soil sampling.

[0006] Optionally, it further includes an electric push rod, a push plate and a touch plate; the bottom of the vertical connecting frame is fixedly connected to the electric push rod; the telescopic part of the electric push rod is fixedly connected to the push plate; a touch plate cooperating with the push plate is fixedly connected to the inner bottom of the upper sampling section.

[0007] Optionally, the pushing component includes an electric slide rail and an electric slider; the electric slide rail is fixedly connected to the vertical connecting frame; the electric slider is slidably connected to the electric slide rail; the electric slider is fixedly connected to one side of the sampling housing.

[0008] Optionally, the long rod includes a rod body, an elastic member, and a scraping plate; a plurality of elastic members are fixedly connected inside the slot of the rod body; one end of the elastic member is fixedly connected with a scraping plate, and the scraping plate slides inside the slot of the rod body.

[0009] Optionally, an arc chamfer is provided on the upper and lower sides of the scraping plate, which facilitates the scraping plate to retract into the rod body when the scraping plate contacts the cylindrical part.

[0010] Optionally, a filtering part is provided at the bottom of the sampling housing.

[0011] Optionally, the filtering part is detachably connected.

[0012] Optionally, a water extraction pipe is further included, and the water extraction pipe is arranged on the vertical connecting frame.

[0013] Optionally, the bottom of the water extraction pipe has a suction port, and a sponge is arranged at the suction port to filter sediment.

[0014] The beneficial effects of the present invention are as follows: In the present invention, the cylinder is inserted into the soil, and the soil in the cylinder is taken out by the auger and the inflatable airbag. Then, the sampling sections are controlled to separate from each other, exposing the side wall of the soil. Then, the sampling housing is controlled to be inserted into the soil on the side wall of the drill hole for sampling. The obtained soil will not have the problem of mixing of soil layers and will not have the problem that the sampled soil is pressed too tightly. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the auger screwed into the cylinder disclosed in the present invention; Figure 2 is Figure 1 a cross-sectional view of; Figure 3 is Figure 2 a partial structural diagram of; Figure 4 It is a schematic structural diagram of the vertical connecting frame entering the cylinder disclosed in the present invention; Figure 5 is Figure 4 a cross-sectional view of; Figure 6 is Figure 5 a partial structural diagram of; Figure 7 It is a schematic structural diagram of the pushing assembly disclosed in the present invention; Figure 8 It is a schematic structural diagram of the long rod disclosed in the present invention; Figure 9 It is a cross-sectional view of the long rod disclosed in the present invention.

[0016] In the above drawings: 1 - cylinder body, 2 - auger, 3 - inflatable airbag, 4 - vertical connecting frame, 5 - pushing assembly, 6 - sampling housing, 7 - long rod, 8 - electric push rod, 9 - push plate, 10 - touch plate, 11 - water suction pipe, 1a - sampling section, 1aa - cylinder part, 1b - counterweight part, 6a - filtering part, 51 - electric slide rail, 52 - electric slider, 71 - rod body, 72 - elastic part, 73 - scraper. Detailed implementation mode

[0017] First of all, it should be pointed out that in different described implementation modes, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the entire specification can be transferred meaningfully to the same components with the same reference numerals or the same component names. The position descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and shown drawings and are transferred meaningfully to the new positions when the positions change.

[0018] Embodiment 1: A soil sampling device for karst geology, as Figures 1-9 shown, includes a cylinder body 1 and a power assembly; the power assembly includes a lifting assembly, a rotating assembly installed on the lifting part of the lifting assembly, and a clamping assembly installed on the rotating part of the rotating assembly. The clamping assembly is provided with a plurality of clamping parts; the cylinder body 1 has two sampling sections 1a, and the two sampling sections 1a are in contact with each other. A plurality of cylinder parts 1aa are provided on each sampling section 1a, and a long rod 7 is slidably connected in the cylinder part 1aa. When the two sampling sections 1a are separated from each other, soil sampling is carried out on the soil side wall between the sampling sections 1a; It also includes an auger 2 and an inflatable airbag 3; the soil in the cylinder body 1 is transferred by the auger 2; the bottom of the auger 2 is communicated with the inflatable airbag 3. The cylindrical part of the auger 2 is set to be hollow and communicated with the inflatable airbag 3. An external air pump sends air into or sucks air out of the inflatable airbag 3 through the cylindrical part, so that the inflatable airbag 3 expands or contracts.

[0019] It also includes a vertical connecting frame 4, a pushing assembly 5 and a sampling housing 6; the pushing assembly 5 is installed on the vertical connecting frame 4, and the moving part of the pushing assembly 5 is fixedly connected with the sampling housing 6. The sampling housing 6 is pushed into the soil side wall by the pushing assembly 5 for soil sampling.

[0020] It also includes an electric push rod 8, a push plate 9 and a touch plate 10; the bottom of the vertical connecting frame 4 is fixedly connected with the electric push rod 8; the telescopic part of the electric push rod 8 is fixedly connected with the push plate 9; a touch plate 10 cooperating with the push plate 9 is fixedly connected to the inner bottom of the sampling section 1a located above.

[0021] The pushing assembly 5 includes an electric slide rail 51 and an electric slider 52; the electric slide rail 51 is fixedly connected to the vertical connecting frame 4; the electric slider 52 is slidably connected to the electric slide rail 51; the electric slider 52 is fixedly connected to one side of the sampling housing 6.

[0022] The long rod 7 includes a rod body 71, an elastic member 72, and a scraping plate 73; a plurality of elastic members 72 are fixedly connected in the slot of the rod body 71; one end of the elastic member 72 is fixedly connected with the scraping plate 73, and the scraping plate 73 slides in the slot of the rod body 71.

[0023] An arc chamfer is provided on the upper and lower sides of the scraping plate 73, which facilitates the retraction of the scraping plate 73 into the rod body 71 when the scraping plate 73 contacts the cylindrical part 1aa.

[0024] A filtering part 6a is provided at the bottom of the sampling housing 6; the filtering part 6a is detachably connected.

[0025] It further includes a water suction pipe 11, and the vertical connecting frame 4 is provided with the water suction pipe 11; the bottom of the water suction pipe 11 has a suction port, and a sponge is provided at the suction port to filter sediment.

[0026] It should be noted that the power assembly includes a lifting assembly, a rotating assembly installed on the lifting part of the lifting assembly, and a clamping assembly installed on the rotating part of the rotating assembly. The clamping assembly is provided with a plurality of clamping parts. This is the prior art and will not be elaborated in the present invention.

[0027] During use, an external power assembly is installed at the place where soil sampling is required, and then the cylinder body 1 is fixed in one clamping part of the clamping assembly. Through the movement of the lifting part of the lifting assembly, the cylinder body 1 is inserted into the soil so that the sampling section 1a is at the sampling depth; Then the auger 2 is fixed in another clamping part of the clamping assembly. Through the cooperation of the lifting assembly and the rotating assembly, the auger 2 is rotated into the cylinder body 1, and then the soil in the cylinder body 1 is transferred out of the cylinder body 1; as Figure 2 、 Figure 3 shown. At the same time, the inflatable airbag 3 initially in a contracted state also enters the cylinder body 1. After the auger 2 transfers the soil in the cylinder body 1, an external air pump is controlled to inflate the hollow cylinder of the auger 2, so that the inflatable airbag 3 expands and fits against the inner wall of the cylinder body 1. Then, the lifting assembly is controlled to drive the auger 2 and the inflatable airbag 3 to move upward. When the inflated airbag 3 moves upward, the remaining soil in the cylinder body 1 is scraped and transferred upward out of the cylinder body 1, avoiding the influence of this part of the soil on the subsequent work of sampling the sidewall soil.

[0028] As Figures 4-6As shown, the vertical connecting frame 4 is then fixed in one clamping part of the clamping assembly, and the vertical connecting frame 4 is driven by the lifting assembly to move downward into the cylinder body 1 after the soil is removed; then the telescopic part of the electric push rod 8 is controlled to push out, driving the push plate 9 to move to directly below the touch plate 10, and then the vertical connecting frame 4 is controlled to move upward, so that the push plate 9 moves upward to contact the touch plate 10, thereby pushing the touch plate 10 to move upward. The touch plate 10 drives the connected sampling section 1a to move upward, so that adjacent sampling sections 1a can be separated. The long rod 7 slides relative to the cylinder part 1aa, and at the same time the two sampling sections 1a are separated to expose the soil side wall that needs to be sampled. Then the vertical connecting frame 4 is controlled to move downward again, so that the sampling shell 6 faces the exposed soil side wall. Then the pushing assembly 5 is controlled to push the sampling shell 6 to move towards the exposed soil side wall for soil sampling work. Then the pushing assembly 5 is controlled to push the sampling shell 6 to retreat. In this way, the sampling shell 6 completes the sampling work on the side wall soil. In the present invention, the cylinder body 1 is inserted into the soil, and the soil in the cylinder body 1 is taken out by the auger 2 and the inflatable airbag 3. Then the sampling sections 1a are controlled to separate from each other to expose the soil side wall, and then the sampling shell 6 is controlled to be inserted into the soil on the side wall of the drill hole for sampling. The obtained soil will not have the problem of mixing of soil layers and will not have the problem that the sampled soil is pressed too tightly (in the prior art, the sampled soil obtained by directly drilling down from top to bottom with a sampling pipe will be very tightly pressed soil, and the depth of the tightly pressed soil cannot be accurately known).

[0029] Further, when the cylinder body 1 is inserted into the soil, since the cylinder body 1 moves downward, a small amount of soil will also be driven to move on its outer side, resulting in a small amount of soil being mixed on the outer side of the cylinder body 1. To solve this problem, when the rod body 71 leaks out from the sampling section 1a, the scraping plate 73 moves outward under the action of the elastic member 72, that is, moves towards the soil side wall. Then the rotation assembly is controlled to drive the cylinder body 1 to rotate, so that the scraping plate 73 moves in a circular motion to scrape the soil side wall. As the scraping plate 73 moves in a circular motion, the elastic member 72 gradually elongates. Thus, the scraping plate 73 scrapes off the small amount of mixed soil on the outer side when the cylinder body 1 is inserted into the soil, thereby avoiding the problem of different layers of soil being mixed in the soil sampled by the sampling shell 6.

[0030] Further, there may be free water in the soil. In the present invention, a filtering part 6a is provided to filter the free water in the soil, and the free water drops to the bottom of the cylinder body 1; at the same time, the water extraction pipe 11 continuously extracts the free water in the cylinder body 1; further, when the sampling shell 6 moves up to the ground, the staff can remove the filtering part 6a, which is convenient for the staff to take out the soil in the sampling shell 6 and is easy to operate.

[0031] It should be noted that a counterweight portion 1b is provided at the bottom of the cylinder body 1, which can keep the height of the counterweight portion 1b of the cylinder body 1 unchanged when the push plate 9 pushes the touch plate 10 upward. And when the front auger 2 is screwed into the cylinder body 1 to transfer the soil in the cylinder body 1, the soil in the counterweight portion 1b is retained without being transferred, so as to further ensure that the height of the counterweight portion 1b of the cylinder body 1 remains unchanged when the push plate 9 pushes the touch plate 10 upward.

[0032] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A soil sampling device for karst geology, comprising a cylinder (1); characterized in that, The cylinder (1) has two sampling sections (1a), the two sampling sections (1a) are in contact with each other, each sampling section (1a) is provided with a plurality of cylinder parts (1aa), a long rod (7) is slidably connected in the cylinder part (1aa), and when the two sampling sections (1a) are away from each other, soil sampling is performed on the soil side wall between the sampling sections (1a); the cylinder (1) also includes a dragon (2) and an inflatable air bag (3); soil in the cylinder (1) is transferred through the dragon (2); and the bottom of the dragon (2) is connected to the inflatable air bag (3).

2. The soil sampling device for karst geology according to claim 1, characterized in that, It also comprises a vertical connection frame (4), a pushing assembly (5) and a sampling shell (6); the pushing assembly (5) is mounted on the vertical connection frame (4); the moving part of the pushing assembly (5) is fixedly connected to the sampling shell (6); the pushing assembly (5) pushes the sampling shell (6) to be inserted into the soil side wall to perform soil sampling.

3. The soil sampling device for karst geology according to claim 2, characterized in that, It also includes an electric push rod (8), a push plate (9) and a touch plate (10); the electric push rod (8) is fixedly connected to the bottom of the vertical connection frame (4); the push plate (9) is fixedly connected to the telescopic portion of the electric push rod (8); and the touch plate (10) that cooperates with the push plate (9) is fixedly connected to the bottom of the upper sampling section (1a).

4. The soil sampling device for karst geology according to claim 2, characterized in that, The pushing assembly (5) comprises an electric slide rail (51) and an electric slider (52); the electric slide rail (51) is fixedly connected to the vertical connecting frame (4); the electric slide rail (51) is slidably connected to the electric slider (52); and the electric slider (52) is fixedly connected to one side of the sampling housing (6).

5. The soil sampling device for karst geology according to claim 1 is characterized in that, The long rod (7) comprises a rod body (71), an elastic member (72) and a scraper (73); a plurality of elastic members (72) are fixedly connected in the slot of the rod body (71); a scraper (73) is fixedly connected at one end of the elastic member (72), and the scraper (73) slides in the slot of the rod body (71).

6. The soil sampling device for karst geology according to claim 5, characterized in that, The scraper (73) is provided with an arc-shaped chamfer on the upper and lower sides, so that when the scraper (73) contacts the barrel (1aa), the scraper (73) can be retracted into the rod body (71).

7. The soil sampling device for karst geology according to claim 2, characterized in that, A filter portion (6a) is provided at the bottom of the sampling housing (6).

8. The soil sampling device for karst geology according to claim 7, characterized in that, The filter part (6a) is detachably connected.

9. The soil sampling device for karst geology according to claim 2, characterized in that, It also includes a water pumping pipe (11), and the water pumping pipe (11) is arranged on the vertical connecting frame (4).

10. The soil sampling device for karst geology according to claim 9, characterized in that, The bottom of the water pumping pipe (11) is provided with a suction port, and a sponge is arranged at the suction port to filter mud and sand.

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