Soil sample extraction device

Abstract

The utility model relates to the technical field of soil sampling, in particular to a soil sample extraction device which comprises an external supporting cylinder, a sampling system and a pressing mechanism matched with the sampling system, sliding grooves are formed in the two sides of the outer supporting cylinder, and scales are arranged on the sliding groove in one side. The sampling system is arranged in the supporting cylinder and comprises a spiral drill rod and a sampling sleeve; the sampling sleeve is positioned in the spiral drill rod; the sampling sleeve is a double-layer cylinder, and a rotary opening and closing device is arranged at the bottom of the outer-layer sleeve; the rotary opening and closing device comprises a plurality of blades, and the blades are made of sharp hard metal; the rotary opening and closing device can be controlled to be closed by rotating the outer-layer sleeve; the pressing mechanism is arranged at the top of the sampling system and comprises a pressing plate, a sliding block and an air cylinder; according to the device, the motor is used for providing driving force for the spiral drill rod, and the operation difficulty can be effectively reduced when soil with high hardness is sampled; a rotary opening and closing device is arranged at the bottom of the sampling sleeve, so that the integrity of a bottom soil sample can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling, in particular to a soil sample extraction device. Background Art

[0002] In the process of environmental testing, soil sampling and testing is an essential step. Through sampling and testing, the components of the soil at different depths can be analyzed, thereby judging the current environmental pollution situation.

[0003] In the prior art, soil sampling devices usually include a handle and a drill bit, with a sampling sleeve at the bottom of the drill bit. When in use, the handle is manually operated to drive the drill bit into the soil so that the soil sample enters the sampling sleeve. If the soil is hard, it is difficult to operate manually; when the sampling sleeve is taken out, the bottom cannot be sealed, which may cause the loss of the bottom soil sample. Utility Model Content

[0004] The purpose of the present application is to provide a soil sample extraction device, aiming to solve the problems in the prior art.

[0005] An embodiment of the present application provides a soil sample extraction device, including an external support tube, a sampling system and a pressing mechanism cooperating with the sampling system; the external support tube is provided with slide grooves on both sides, and a scale is provided at one side of the slide groove; the sampling system is arranged inside the support tube, including an auger rod and a sampling sleeve; the sampling sleeve is located inside the auger rod; the sampling sleeve is a double-layer cylinder, and a rotating opener is provided at the bottom of the outer sleeve; the rotating opener contains multiple blades, and the blades are sharp and hard metal; the switch of the rotating opener can be controlled by rotating the outer sleeve; the pressing mechanism is arranged at the top of the sampling system, including a pressure plate, a sliding block and a cylinder.

[0006] Furthermore, four supporting legs are provided at the bottom of the external supporting tube.

[0007] Furthermore, a connecting component is provided on the inner side of the bottom of the spiral drill rod, and the lower part of the connecting component is truncated cone-shaped; the upper part is cylindrical, and its outer surface is provided with an external thread.

[0008] Furthermore, the top of the auger rod is connected to the rotating shaft of the motor; and the motor is arranged on the upper part of the pressing plate.

[0009] Furthermore, the sliding block is located above the pressure plate, and the thickness of the sliding block is the same as the height of the connecting component at the bottom of the drill pipe; the sliding block is located on the sliding grooves on both sides of the external support tube.

[0010] Furthermore, a threaded connection is provided at the bottom of the sampling sleeve, and an internal thread is provided on the inner surface thereof.

[0011] Furthermore, a piston rod is connected to the top of the pressing plate, and the pressing plate is displaced in the vertical direction by the cylinder.

[0012] The beneficial effects of the utility model are as follows: the device uses a motor to provide driving force for the spiral drill rod, which effectively reduces the operating difficulty when sampling soil with greater hardness and saves labor costs; a rotary opener is provided at the bottom of the sampling casing, and the outer casing can be rotated before taking out the sampling casing to close the rotary opener to ensure the integrity of the bottom soil sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] Figure 2 It is a side view of the utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the sampling sleeve and connecting parts.

[0016] Figure 4 A top view of the rotary closure.

[0017] In the figure:

[0018] 1. Cylinder; 2. External support tube; 3. Motor; 4. Pressure plate; 5. Sliding block; 6. Auger rod; 7. Outer casing; 8. Rotary opener and closer; 9. Support leg; 10. Sampling casing; 11. Slide; 12. Connecting part; 13. Piston rod; 80. Blade; 100 Threaded connecting part; 121. External thread. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 4A soil sample extraction device shown in the figure comprises an external support tube 2, a sampling system and a pressing mechanism cooperating with the sampling system; the external support tube 2 is provided with slide grooves 11 on both sides, and a scale is provided at one side of the slide groove; the sampling system is arranged inside the support tube, and comprises an auger rod 6 and a sampling sleeve 10; the sampling sleeve 10 is located inside the auger rod 6; the sampling sleeve 10 is a double-layer cylinder, and a rotating opener and closer 8 is provided at the bottom of the outer sleeve 7; the rotating opener and closer 8 contains a plurality of blades 80, and the blades 80 are sharp hard metal; the switch of the rotating opener and closer 8 can be controlled by rotating the outer sleeve 7; the pressing mechanism is arranged at the top of the sampling system, and comprises a pressing plate 4, a sliding block 5 and a cylinder 1; the principle of controlling the rotating opener and closer 8 is similar to that of the blade-type aperture structure, and the opening and closing of the blades 80 are controlled by rotating the external control plate.

[0021] Four supporting legs 9 are provided at the bottom of the external supporting tube 2 to keep the device in a relatively stable state.

[0022] A connecting component 12 is provided on the inner side of the bottom of the auger rod 6, and the lower part of the connecting component 12 is truncated cone-shaped; the upper part is cylindrical, and its outer surface is provided with an external thread 121; the truncated cone-shaped setting makes the bottom of the auger rod have a certain inclination, making it easier to insert the auger rod 6 into the soil to collect soil samples when it rotates downward.

[0023] The top of the auger rod 6 is connected to the rotating shaft of the motor 3; the motor 3 is arranged on the upper part of the pressure plate 4; the motor 3 can select motors of different power sizes according to the actual situation of the soil, and the motor 3 and the auger rod 6 can be connected by a coupling or a direct connection to facilitate the installation and disassembly of the motor.

[0024] The sliding block 5 is located above both sides of the pressure plate 4, and the thickness h of the sliding block 5 is the same as the height H of the bottom connecting part 12 of the drill pipe; the sliding block 5 is located on the slide groove 11 on both sides of the external support tube 2; when reading the depth of the drilled soil sample, the scale corresponding to the top surface of the sliding block is used, which is the height of the soil sample entering the sampling sleeve 10 after subtracting the height of the bottom connecting part 12.

[0025] The bottom of the sampling sleeve 10 is provided with a threaded connection component 100 , and the inner surface of the threaded connection component 100 is provided with an internal thread; the threaded connection is connected to the upper external thread 121 of the connection component 12 , so that the sampling sleeve 10 can be fixed inside the auger rod 6 .

[0026] The piston rod 13 is connected to the upper side of the pressing plate 4 , and the cylinder 1 is used to control the pressing plate 4 to move in the vertical direction.

[0027] In actual use, the device is fixed on the upper part of the sampling area, and the sampling sleeve 10 is connected to the inside of the auger rod 6 through the bottom thread. After the auger rod 6 is connected to the rotating shaft of the motor 3, the motor 3 is started to start drilling, and at the same time, the top cylinder 1 applies downward pressure to move the auger rod 6 downward; after reaching the sampling depth, the motor 3 is turned off and disassembled to expose the auger rod 6 and the sampling sleeve 10 at the bottom; then the outer sleeve 7 is rotated to close the bottom rotary opener 8, and the sampling sleeve 10 is taken out.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A soil sample extraction device, characterized in that: It includes an external support tube, a sampling system and a pressing mechanism cooperating with the sampling system; the external support tube is provided with slide grooves on both sides, and a scale is provided at one of the slide grooves; the sampling system is arranged inside the support tube, including a spiral drill rod and a sampling sleeve; the sampling sleeve is located inside the spiral drill rod; the sampling sleeve is a double-layer cylinder, and a rotating opener is provided at the bottom of the outer sleeve; the rotating opener contains multiple blades, and the blades are sharp and hard metal; the switch of the rotating opener can be controlled by rotating the outer sleeve; the pressing mechanism is arranged on the top of the sampling system, including a pressure plate, a sliding block and a cylinder.

2. The soil sample extraction device according to claim 1, characterized in that: The bottom of the external support tube is provided with four support legs.

3. The soil sample extraction device according to claim 1, characterized in that: A connecting component is arranged on the inner side of the bottom of the spiral drill rod. The lower part of the connecting component is in the shape of a truncated cone; the upper part is in the shape of a cylinder, and an external thread is arranged on the outer surface of the connecting component.

4. The soil sample extraction device according to claim 1, characterized in that: The top of the auger rod is connected to the rotating shaft of the motor; the motor is arranged on the upper part of the pressing plate.

5. The soil sample extraction device according to claim 1, characterized in that: The sliding block is located above the pressing plate, and the thickness of the sliding block is the same as the height of the connecting component at the bottom of the drill pipe; the sliding block is located on the sliding grooves on both sides of the external support tube.

6. The soil sample extraction device according to claim 1, characterized in that: The bottom of the sampling sleeve is provided with a threaded connection. Its inner surface is provided with internal threads.

7. The soil sample extraction device according to claim 1, characterized in that: The upper part of the pressing plate is connected with a piston rod, and the pressing plate is displaced in the vertical direction by the cylinder.

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