A soil sampling device for karst geology

Abstract

The present application relates to soil sampling equipment, especially to a soil sampling equipment for karst geology, comprising a barrel; the barrel has two sampling sections, the two sampling sections contact each other, a plurality of barrel portions are arranged on each sampling section, a long rod is slidably connected in the barrel portion, when the two sampling sections are away from each other, the soil side wall between the two sampling sections is sampled; further comprising a Jiaolong and an inflatable air bag; the soil in the barrel is transferred through the Jiaolong; the bottom of the Jiaolong is communicated with the inflatable air bag. The barrel is inserted into the soil, the soil in the barrel is taken out by the Jiaolong and the inflatable air bag, then the sampling sections are controlled to separate from each other to expose the soil side wall, and then the sampling shell is controlled to be inserted into the soil of the drilling hole side wall for sampling, the obtained soil does not have the problem of mixing of each layer of soil and also does not have the problem that the sampled soil is particularly compacted.

Description

Technical Field

[0001] The invention relates to soil sampling equipment, in particular to soil sampling equipment used for karst geology. Background Art

[0002] In order to fully understand the soil conditions in karst geological areas, soil sampling work needs to be carried out in karst geological areas;

[0003] In the prior art, a Chinese patent with publication number CN119510028A discloses a rock and soil sampler for geological surveying. The sampler comprises several detachable drill shaft modules arranged between the drill bit module and the drill arm module. The sampler not only adjusts the sampling depth of the drilling bit according to the actual survey environment, but also simultaneously samples all depth positions in the borehole in conjunction with a trigger assembly to obtain layered samples of the rock and soil structure.

[0004] However, there are problems with the implementation method of this patent: 1. The drilling bit drills into the soil and cannot remove the soil from the borehole. In the presence of soil, the mechanical structure of the sampling is difficult to unfold, affecting the sampling work of the side wall soil (soil at the side wall of the borehole); 2. When the drilling bit drills into the soil, the soil at different depths will be mixed together, resulting in mixed side wall soil for sampling. Summary of the Invention

[0005] In order to solve the technical problems mentioned in the background, the present invention provides a soil sampling device for karst geology, including a cylinder; the cylinder has two sampling sections, the two sampling sections are in contact with each other, each sampling section is provided with multiple cylinders, and a long rod is slidably connected in the cylinder. When the two sampling sections are away from each other, soil sampling is performed on the soil side wall between the sampling sections; it also includes a dragon and an inflatable airbag; the soil in the cylinder is transferred by the dragon; the bottom of the dragon is connected to the inflatable airbag.

[0006] Optionally, it also includes a vertical connecting frame, a pushing assembly and a sampling shell; the pushing assembly is installed on the vertical connecting frame, and the moving part of the pushing assembly is fixedly connected to the sampling shell, and the sampling shell is pushed by the pushing assembly to insert into the soil side wall for soil sampling.

[0007] Optionally, it also includes an electric push rod, a push plate and a touch plate; the electric push rod is fixed to the bottom of the vertical connecting frame; the telescopic part of the electric push rod is fixed to the push plate; and the bottom of the sampling section located above is fixed to a touch plate that cooperates with the push plate.

[0008] 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; and the electric slider is fixedly connected to one side of the sampling shell.

[0009] Optionally, the long rod includes a rod body, an elastic member and a scraper; a plurality of elastic members are fixedly connected in the slot of the rod body; one end of the elastic member is fixedly connected to the scraper, and the scraper slides in the slot of the rod body.

[0010] Optionally, an arc-shaped chamfer is provided on the upper and lower sides of the scraper to facilitate the scraper to retract into the rod body when the scraper contacts the barrel.

[0011] Optionally, a filter portion is provided at the bottom of the sampling housing.

[0012] Optionally, the filter portion is detachably connected.

[0013] Optionally, a water pumping pipe is further included, and the vertical connecting frame is provided with the water pumping pipe.

[0014] Optionally, a suction port is provided at the bottom of the water pumping pipe, and a sponge is provided at the suction port to filter mud and sand.

[0015] The beneficial effects of the present invention are:

[0016] The present invention inserts a cylinder into the soil, and takes out the soil in the cylinder by using a dragon and an inflatable airbag. Then, the sampling sections are controlled to separate from each other to expose the soil side wall, and then the sampling shell is controlled to be inserted into the soil on the side wall of the drill hole to take samples. The obtained soil will not have the problem of mixing of different layers of soil, and there will also be no problem of the sampled soil being compressed particularly tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the dragon rotating into the cylinder disclosed in the present invention;

[0018] Figure 2 for Figure 1 sectional view of

[0019] Figure 3 for Figure 2 Schematic diagram of the local structure;

[0020] Figure 4 This is a structural schematic diagram of the vertical connecting frame entering the cylinder disclosed in the present invention;

[0021] Figure 5 for Figure 4 sectional view of

[0022] Figure 6 for Figure 5 Schematic diagram of the local structure;

[0023] Figure 7 This is a schematic structural diagram of the pushing assembly disclosed in the present invention;

[0024] Figure 8 This is a schematic structural diagram of the long rod disclosed in the present invention;

[0025] Figure 9 A cross-sectional view of the long rod disclosed in the present application.

[0026] In the above drawings: 1 - barrel, 2 - dragon, 3 - inflatable air bag, 4 - vertical connecting frame, 5 - pushing assembly, 6 - sampling shell, 7 - long rod, 8 - electric push rod, 9 - push plate, 10 - touch plate, 11 - water suction pipe, 1a - sampling section, 1aa - barrel part, 1b - counterweight part, 6a - filter part, 51 - electric sliding rail, 52 - electric sliding block, 71 - rod body, 72 - elastic member, 73 - scraper. DETAILED DESCRIPTION

[0027] It should first be noted that in the various described embodiments, identical components are provided with identical reference signs or identical component names, wherein the disclosure contained in the entire description can be transferred by meaning to identical components having identical reference signs or identical component names. The chosen position indications in the description, for example, above, below, lateral, and the like, also refer to the directly described and shown drawings and are transferred by meaning to new positions when the position changes.

[0028] Example 1: A soil sampling device for karst geology, as shown in Figures 1-9 includes a barrel 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 barrel 1 has two sampling sections 1a, the two sampling sections 1a are in contact with each other, a plurality of barrel parts 1aa are arranged on each sampling section 1a, a long rod 7 is slidably connected in the barrel part 1aa, and the soil on the side wall between the two sampling sections 1a is sampled when the two sampling sections 1a are away from each other.

[0029] It also includes a dragon 2 and an inflatable air bag 3; the soil in the barrel 1 is transferred by the dragon 2; the bottom of the dragon 2 is communicated with the inflatable air bag 3, the cylindrical part of the dragon 2 is hollow and communicated with the inflatable air bag 3, an external air pump sends air or exhausts air into the inflatable air bag 3 through the cylindrical part, so that the inflatable air bag 3 expands or shrinks.

[0030] It also includes a vertical connecting frame 4, a pushing assembly 5, and a sampling shell 6; the pushing assembly 5 is installed on the vertical connecting frame 4, the moving part of the pushing assembly 5 is fixedly connected with the sampling shell 6, and the sampling shell 6 is inserted into the soil side wall to sample the soil by pushing the pushing assembly 5.

[0031] 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; the touch plate 10 cooperating with the push plate 9 is fixedly connected to the bottom of the sampling section 1a located above.

[0032] The pushing assembly 5 comprises an electric sliding rail 51 and an electric sliding block 52; the electric sliding rail 51 is fixed on the vertical connecting frame 4; the electric sliding rail 51 is provided with the electric sliding block 52 which is connected in sliding mode; and the electric sliding block 52 is fixed on one side of the sampling shell 6.

[0033] The long rod 7 comprises a rod body 71, elastic members 72 and a scraper 73; the rod body 71 is provided with a plurality of elastic members 72 which are fixed in the groove; and the elastic members 72 are fixed at one end with the scraper 73 which slides in the groove of the rod body 71.

[0034] The scraper 73 is provided with an arc-shaped chamfer on the upper and lower sides, so that the scraper 73 can retract into the rod body 71 when the scraper 73 contacts the barrel part 1aa.

[0035] The sampling shell 6 is provided with a filter part 6a at the bottom; and the filter part 6a is detachably connected.

[0036] The vertical connecting frame 4 is provided with a water suction pipe 11; the water suction pipe 11 is provided with a suction port at the bottom; and the suction port is provided with a sponge for filtering the silt.

[0037] It should be noted that the power assembly comprises 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; and the clamping assembly is provided with a plurality of clamping parts. This is prior art, and the present application will not be described in detail.

[0038] In use, the external power assembly is installed at a place where soil sampling is needed, then the barrel 1 is fixed in one clamping part of the clamping assembly, and the barrel 1 is inserted into the soil by moving the lifting part of the lifting assembly, so that the sampling section 1a is at the sampling depth.

[0039] Then the dragon 2 is fixed in another clamping part of the clamping assembly, and the dragon 2 is rotated into the barrel 1 by the cooperation of the lifting assembly and the rotating assembly, so as to transfer the soil in the barrel 1 to the outside of the barrel 1; as shown in Figure 2 、 Figure 3 At the same time, the inflatable air bag 3 in the initial retracted state also enters the barrel 1, and after the soil in the barrel 1 is transferred by the dragon 2, the hollow cylindrical body of the dragon 2 is inflated by controlling the external air pump, so that the inflatable air bag 3 is inflated and adheres to the inner wall of the barrel 1, and then the lifting assembly drives the dragon 2 and the inflatable air bag 3 to move upward and leave, so that the inflatable air bag 3 moves upward and removes the residual soil in the barrel 1, avoiding the influence of the part of the soil on the subsequent sampling of the soil on the side wall.

[0040] As shown in Figure 4-Figure 6As shown, the vertical connecting frame 4 is then fixed in a clamping part of the clamping assembly, and the vertical connecting frame 4 is driven by the lifting assembly to move downward into the cylinder 1 after the soil is removed; then the telescopic part of the electric push rod 8 is controlled to be pushed out, driving the push plate 9 to move to just 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 and contacts the touch plate 10, thereby pushing the touch plate 10 to move upward, and the touch plate 10 drives the connected sampling sections 1a to move upward, thereby allowing the adjacent sampling sections 1a to be separated, and the long rod 7 slides relative to the cylinder 1aa, and at the same time the two sampling sections 1a are separated to expose the soil side wall that needs to be sampled, and then the vertical connecting frame 4 is controlled to move downward again, so that the sampling shell 6 faces the exposed soil side wall, and then Afterwards, the pushing component 5 is controlled to push the sampling shell 6 to move toward the exposed soil side wall to perform soil sampling, and then the pushing component 5 is controlled to push the sampling shell 6 back, so that the sampling shell 6 completes the sampling work of the side wall soil. The present invention inserts the cylinder 1 into the soil, and takes out the soil in the cylinder 1 using the dragon 2 and the inflatable airbag 3, and then controls the sampling sections 1a to separate from each other to expose the soil side wall, and then controls the sampling shell 6 to insert into the soil on the side wall of the borehole for sampling. The obtained soil will not have the problem of mixing of various layers of soil, nor will there be the problem of the sampled soil being particularly compacted (the prior art directly drilling the sampling tube from top to bottom will obtain particularly compacted soil, and the depth of the compacted soil cannot be accurately known).

[0041] Furthermore, when the cylinder 1 is inserted into the soil, a small amount of soil will also move on the outside of the cylinder 1 due to the downward movement of the cylinder 1, resulting in a small amount of soil being mixed together on the outside of the cylinder 1. To address this problem, when the rod 71 leaks out of the sampling section 1a, the scraper 73 moves outward under the action of the elastic member 72, that is, moves toward the side wall of the soil, and then controls the rotating assembly to drive the cylinder 1 to rotate, allowing the scraper 73 to move in a circular motion to scrape the side wall of the soil. As the scraper 73 moves in a circular motion, the elastic member 72 gradually extends, and then the scraper 73 scrapes off the small amount of mixed soil on the outside when the cylinder 1 is inserted into the soil, thereby avoiding the problem of different layers of mixing in the soil sampled by the sampling shell 6.

[0042] Furthermore, there may be free water in the soil. The present invention filters out the free water in the soil by providing a filter portion 6a, and the free water falls to the bottom of the cylinder 1; at the same time, the pumping pipe 11 continues to pump out the free water in the cylinder 1; further, when the sampling shell 6 is moved to the ground, the staff can remove the filter portion 6a to facilitate the staff to take out the soil in the sampling shell 6, which is convenient for operation.

[0043] It should be noted that the bottom of the barrel 1 is provided with a counterweight part 1b, which can keep the height of the counterweight part 1b of the barrel 1 unchanged when the push plate 9 pushes the touch plate 10 upward. And when the front dragon 2 rotates into the barrel 1 to transfer the soil in the barrel 1, the soil in the counterweight part 1b is not transferred, so as to further ensure that the height of the counterweight part 1b of the barrel 1 is unchanged when the push plate 9 pushes the touch plate 10 upward.

[0044] The above only describes the preferred embodiments of the present application. It should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the scope of protection of the present application.

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, and each sampling section (1a) is provided with a plurality of cylinder parts (1aa), 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 performed on the side wall of the soil between the sampling sections (1a); the cylinder (1) also includes a dragon (2) and an inflatable airbag (3); soil in the cylinder (1) is transferred by the dragon (2); the bottom of the dragon (2) is connected to the inflatable airbag (3); It also includes a vertical connecting frame (4), a pushing assembly (5) and a sampling shell (6); the pushing assembly (5) is installed on the vertical connecting frame (4), the moving part of the pushing assembly (5) is fixedly connected to the sampling shell (6), and the pushing assembly (5) pushes the sampling shell (6) to be inserted into the soil side wall to perform soil sampling; The long rod (7) includes 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 to one end of the elastic member (72), and the scraper (73) slides in the slot of the rod body (71); The scraper (73) is provided with an arc-shaped chamfer on the upper and lower sides, so that the scraper (73) can be retracted into the rod body (71) when the scraper (73) contacts the barrel (1aa).

2. The soil sampling device for karst geology according to claim 1, 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 connecting 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).

3. The soil sampling device for karst geology according to claim 1, characterized in that: 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 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).

4. The soil sampling device for karst geology according to claim 1, characterized in that: A filter portion (6a) is provided at the bottom of the sampling housing (6).

5. The soil sampling device for karst geology according to claim 4, characterized in that: The filter portion (6a) is detachably connected.

6. The soil sampling device for karst geology according to claim 1, 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).

7. The soil sampling device for karst geology according to claim 6, characterized in that: The bottom of the water pumping pipe (11) is provided with a suction port, and a sponge is provided at the suction port to filter mud and sand.

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