Soil gas sampling device for geological mineral exploration

Abstract

The invention discloses a soil gas sampling device for geological mineral exploration, and relates to the technical field of gas sampling devices.The technical scheme includes that the soil gas sampling device comprises a hollow drill rod, a grip is fixedly connected to the top of the hollow drill rod, a sampling head is fixedly connected to the lower portion of the hollow drill rod, a drill bit is fixedly connected to the bottom of the sampling head, and a second motor is arranged in the sampling head; according to the soil sampling device, the second motor is started to drive the turbine to rotate, gas in soil can be assisted to enter the sampling head through rotation of the turbine, and the turbine can drive the second transmission wheel to rotate while rotating, so that the gas in the soil can enter the sampling head; a third gear can be driven to rotate through a second transmission wheel, the third gear rotates to drive a fixedly connected cleaning rod to rotate along the surface of the soil filtering partition plate, and soil particles attached to the surface of the soil filtering partition plate can be effectively cleaned through rotation of the cleaning rod, so that the soil particles are prevented from blocking a sampling port.

Description

Technical Field

[0001] The present invention relates to the technical field of gas sampling devices, and particularly to a soil gas sampling device for geological and mineral exploration. Background Art

[0002] In the field of geological and mineral exploration, the components of soil gas contain rich geological information, which is of great significance for mineral resource exploration, geological disaster warning, etc. There are many limitations in traditional soil gas sampling methods. For example, the method of positioning and implanting sampling bottles used in the early stage not only destroys the soil structure, but also is time-consuming and laborious, and cannot achieve gas collection at any time and place; although the sampling method of connecting the guiding tube to the gas pipe can detect in real time, due to the gap between the guiding tube and the soil, air in the atmosphere is likely to be mixed in during the suction process, seriously affecting the accuracy of the detection results. In addition, some sampling devices have poor adaptability to different soil environments and are difficult to effectively collect qualified gas samples in special soil layers such as wet clay. Therefore, it is urgent to develop a soil gas sampling device for geological and mineral exploration that is efficient, accurate and highly adaptable.

[0003] During the actual use of existing devices, if the sampled soil is loose or in a high-humidity environment, soil particles may adhere to the sampling port, and excessive pressure when inserting the sampling head may also damage the soil structure, resulting in soil adhering to the sampling port, thus affecting the entry of gas into the sampling device. Therefore, a soil gas sampling device for geological and mineral exploration is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the drawbacks in the prior art that if the sampled soil is loose or in a high-humidity environment, soil particles may adhere to the sampling port, and excessive pressure when inserting the sampling head may also damage the soil structure, resulting in soil adhering to the sampling port, thus affecting the entry of gas into the sampling device, and to propose a soil gas sampling device for geological and mineral exploration.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A soil gas sampling device for geological and mineral exploration, including a hollow drill rod. A handle is fixedly connected to the top of the hollow drill rod. A sampling head is fixedly connected to the lower part of the hollow drill rod. A drill bit is fixedly connected to the bottom of the sampling head. A second motor is arranged inside the sampling head. A turbine is arranged at the output end of the second motor. A second transmission wheel is fixedly connected to the upper part of the turbine. The second transmission wheel is connected by a transmission belt. One end of the transmission belt away from the second transmission wheel is connected to a first transmission wheel. The first transmission wheel is rotatably connected to the sampling head. A fourth gear is fixedly connected to the lower part of the first transmission wheel. The fourth gear is meshed with a third gear. The third gear is rotatably connected to a soil filtering partition board. The soil filtering partition board is fixedly connected to the sampling head. A cleaning rod is fixedly connected to one end of the third gear close to the soil filtering partition board. A control mechanism is arranged at the upper part of the sampling head.

[0007] After the sampling head and the drill bit are inserted into the soil, the second motor drives the turbine to rotate. The rotation of the turbine drives the gas in the soil to enter the sampling head. While the turbine rotates, it drives the second transmission wheel to rotate. The rotation of the second transmission wheel drives the third gear to rotate. The rotation of the third gear drives the fixedly connected cleaning rod to rotate, so as to rotate along the surface of the soil filtering partition board. The soil particles attached to the surface of the soil filtering partition board are cleaned by the rotating cleaning rod, so as to ensure the effective collection of the gas in the soil. Sampling ports are arranged on both sides of the sampling head, and soil filtering partition boards are fixedly connected inside the sampling ports.

[0008] The above technical solution further includes:

[0009] The control mechanism includes a control housing fixedly connected to the upper part of the sampling head. A control shell is arranged on one side of the control housing. A first motor is arranged inside the control shell. A control component is arranged at the output end of the first motor.

[0010] The control component includes a first gear arranged at the output end of the first motor. The first gear is meshed with a second gear. The second gear is fixedly connected to a movable baffle. The movable baffle is rotatably connected to the control housing.

[0011] A connection port is fixedly connected to the upper part of the hollow drill rod. A connecting pipe is arranged above the connection port. A collection mechanism is fixedly connected to one end of the connecting pipe away from the connection port. A groove is arranged above the connection port.

[0012] The collection mechanism includes a sampling cylinder fixedly connected to one end of the connecting pipe. A cylinder is arranged below the sampling cylinder.

[0013] A piston is arranged at the output end of the cylinder. The piston is slidably connected to the sampling cylinder.

[0014] A sealing mechanism is fixedly connected to the upper part of the hollow drill pipe, and two sealing clips are arranged at the bottom of the sealing mechanism.

[0015] The sealing mechanism includes a third motor arranged on the upper part of the sealing housing, and a sealing component is arranged at the output end of the third motor.

[0016] The sealing component includes a rotating rod arranged at the output end of the third motor. Connecting rods are rotatably connected to both sides of the rotating rod. The connecting rods are rotatably connected to sliding blocks, and the sliding blocks are slidably connected to the sealing housing. A sealing clip is fixedly connected to the lower part of the sliding block.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, after the sampling head and the drill bit are inserted into the soil, the second motor can be started to drive the turbine to rotate. Through the rotation of the turbine, the gas in the soil can be assisted to enter the sampling head. Moreover, when the turbine rotates, it can also drive the second transmission wheel to rotate. Through the second transmission wheel, the third gear can be driven to rotate, and the rotation of the third gear can drive the fixedly connected cleaning rod to rotate along the surface of the soil filtering partition. Through the rotation of the cleaning rod, the soil particles attached to the surface of the soil filtering partition can be effectively cleaned, thereby avoiding the blockage of the sampling port by soil particles and affecting the sampling of the gas in the soil.

[0019] 2. In the present invention, after the connecting pipe is inserted into the connecting port, by starting the sealing mechanism, the two sealing clips arranged at the bottom can be driven to close inward, thereby driving the connecting pipe to be clamped into the groove arranged on the upper part of the connecting port, effectively sealing the connection between the connecting pipe and the connecting port, and preventing the outside air from entering the sampling cylinder and mixing with the sampling gas. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a soil gas sampling device for geological and mineral exploration proposed by the present invention;

[0021] Figure 2 It is a schematic internal structure diagram of the hollow drill pipe in the present invention;

[0022] Figure 3 It is a schematic internal structure diagram of the control housing in the present invention;

[0023] Figure 4 It is a schematic internal structure diagram of the sampling head in the present invention;

[0024] Figure 5 It is a schematic internal structure diagram of the sampling cylinder in the present invention;

[0025] Figure 6 It is a schematic connection relationship diagram of the connecting port in the present invention;

[0026] Figure 7Schematic structural diagram of the sealing mechanism in the present invention;

[0027] Figure 8 Rear view of the sealing mechanism in the present invention.

[0028] In the figure: 1, hollow drill pipe; 2, sampling head; 3, drill bit; 4, grip; 5, sampling cylinder; 6, connecting pipe; 7, sealing housing; 8, sealing clip; 9, cylinder; 10, control housing; 11, turbine; 12, soil filtering partition; 13, movable baffle; 14, control housing; 15, first motor; 16, first gear; 17, second gear; 18, cleaning rod; 19, third gear; 20, fourth gear; 21, second motor; 22, first driving wheel; 23, transmission belt; 24, second driving wheel; 25, piston; 26, connection port; 27, rotating rod; 28, connecting rod; 29, slider; 30, third motor. Specific implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] As Figures 1 - 8 shown, a soil gas sampling device for geological and mineral exploration includes a hollow drill pipe 1. A grip 4 is fixedly connected to the top of the hollow drill pipe 1. A sampling head 2 is fixedly connected to the lower part of the hollow drill pipe 1. A drill bit 3 is fixedly connected to the bottom of the sampling head 2. A second motor 21 is arranged inside the sampling head 2. A turbine 11 is arranged at the output end of the second motor 21. A second driving wheel 24 is fixedly connected to the upper part of the turbine 11. The second driving wheel 24 is drivingly connected with a transmission belt 23. One end of the transmission belt 23 far from the second driving wheel 24 is drivingly connected with a first driving wheel 22. The first driving wheel 22 is rotatably connected with the sampling head 2. A fourth gear 20 is fixedly connected to the lower part of the first driving wheel 22. The fourth gear 20 is meshingly connected with a third gear 19. The third gear 19 is rotatably connected with the soil filtering partition 12. The soil filtering partition 12 is fixedly connected with the sampling head 2. A cleaning rod 18 is fixedly connected to one end of the third gear 19 close to the soil filtering partition 12. A control mechanism is arranged at the upper part of the sampling head 2.

[0032] After the sampling head 2 and the drill bit 3 are inserted into the soil, the second motor 21 drives the turbine 11 to rotate. The rotation of the turbine 11 drives the gas in the soil to enter the sampling head 2. At the same time, the rotation of the turbine 11 drives the second transmission wheel 24 to rotate. The rotation of the second transmission wheel 24 drives the third gear 19 to rotate. The rotation of the third gear 19 drives the fixedly connected cleaning rod 18 to rotate, so as to rotate along the surface of the soil filtering partition 12. The soil particles attached to the surface of the soil filtering partition 12 are cleaned by the rotating cleaning rod 18, so as to ensure the effective collection of the gas in the soil. Sampling ports are provided on both sides of the sampling head 2, and the soil filtering partition 12 is fixedly connected inside the sampling ports.

[0033] The control mechanism includes a control housing 10 fixedly connected to the upper part of the sampling head 2. A control housing 14 is provided on one side of the control housing 10. A first motor 15 is arranged inside the control housing 14. A control component is arranged at the output end of the first motor 15. The control component includes a first gear 16 arranged at the output end of the first motor 15. The first gear 16 is meshed and connected with a second gear 17. The second gear 17 is fixedly connected with a movable baffle 13. The movable baffle 13 is rotatably connected with the control housing 10.

[0034] In this embodiment, the sampling head 2 and the drill bit 3 can be inserted into the soil through the handle 4. Then the second motor 21 is started. The second motor 21 can drive the turbine 11 to rotate. The rotation of the turbine 11 can assist the gas in the soil to enter the sampling head 2. At the same time, the rotation of the turbine 11 can also drive the second transmission wheel 24 to rotate. The rotation of the second transmission wheel 24 drives the rotation of the transmission belt 23 connected by transmission. The rotation of the transmission belt 23 drives the rotation of the first transmission wheel 22 connected by transmission. The rotation of the first transmission wheel 22 can drive the fourth gear 20 fixedly connected to the bottom to rotate. The rotation of the fourth gear 20 can drive the meshed third gear 19 to rotate. The rotation of the third gear 19 can drive the fixedly connected cleaning rod 18 to rotate along the surface of the soil filtering partition 12. The rotation of the cleaning rod 18 can effectively clean the soil particles attached to the surface of the soil filtering partition 12, so as to prevent the soil particles from blocking the sampling port and affecting the gas sampling in the soil.

[0035] During the gas sampling process, starting the first motor 15 can drive the first gear 16 to rotate. The rotation of the first gear 16 drives the meshed second gear 17 to rotate. The rotation of the second gear 17 can drive the fixedly connected movable baffle 13 to rotate. The rotation of the movable baffle 13 can control the gas flow rate entering. Moreover, when the sampled gas flows back, the two movable baffles 13 can rotate and abut against each other under the drive of the gas, effectively preventing the sampled gas from flowing back and leaking.

[0036] Embodiment 2

[0037] As Figures 1 - 8As shown, a connection port 26 is fixedly connected to the upper part of the hollow drill pipe 1. A connecting pipe 6 is arranged above the connection port 26. A collecting mechanism is fixedly connected to one end of the connecting pipe 6 away from the connection port 26. A groove is arranged above the connection port 26. The collecting mechanism includes a sampling cylinder 5 fixedly connected to one end of the connecting pipe 6. A cylinder 9 is arranged below the sampling cylinder 5. A piston 25 is arranged at the output end of the cylinder 9. The piston 25 is slidably connected to the sampling cylinder 5.

[0038] A sealing mechanism is fixedly connected to the upper part of the hollow drill pipe 1. Two sealing clips 8 are arranged at the bottom of the sealing mechanism. The sealing mechanism includes a third motor 30 arranged on the upper part of the sealing housing 7. A sealing component is arranged at the output end of the third motor 30. The sealing component includes a rotating rod 27 arranged at the output end of the third motor 30. Connecting rods 28 are rotatably connected to both sides of the rotating rod 27. The connecting rods 28 are rotatably connected to sliders 29. The sliders 29 are slidably connected to the sealing housing 7. Sealing clips 8 are fixedly connected to the lower parts of the sliders 29.

[0039] In this embodiment, after the connecting pipe 6 is inserted into the connection port 26, starting the third motor 30 can drive the rotating rod 27 to rotate. The rotation of the rotating rod 27 drives the rotatably connected connecting rods 28 to rotate, and the rotation of the connecting rods 28 can drive the rotatably connected sliders 29 to move. The movement of the sliders 29 can drive the two sealing clips 8 arranged at the bottom to close inward, so as to drive the connecting pipe 6 to be clamped into the groove arranged above the connection port 26, thereby effectively sealing the connection between the connecting pipe 6 and the connection port 26 and preventing external air from entering the sampling cylinder 5 to mix with the sampling gas. When sampling is required, starting the cylinder 9 can drive the piston 25 to move inside the sampling cylinder 5, and the movement of the piston 25 can cause a negative pressure inside the sampling cylinder 5 to absorb the gas in the soil and enter, realizing sampling.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil gas sampling device for geological and mineral exploration, comprising a hollow drill rod (1), characterized in that: The top of the hollow drill rod (1) is fixedly connected to a handle (4), the lower part of the hollow drill rod (1) is fixedly connected to a sampling head (2), the bottom of the sampling head (2) is fixedly connected to a drill bit (3), a second motor (21) is arranged inside the sampling head (2), an output end of the second motor (21) is arranged with a turbine (11), the upper part of the turbine (11) is fixedly connected to a second transmission wheel (24), the second transmission wheel (24) is transmission-connected to a transmission belt (23), and the transmission belt (23) is transmission-connected to a first transmission wheel (24) at one end away from the second transmission wheel (24). A transmission wheel (22), wherein the first transmission wheel (22) is rotatably connected to the sampling head (2), a fourth gear (20) is fixedly connected to the lower part of the first transmission wheel (22), the fourth gear (20) is meshingly connected to the third gear (19), the third gear (19) is rotatably connected to the soil filter baffle (12), the soil filter baffle (12) is fixedly connected to the sampling head (2), a cleaning rod (18) is fixedly connected to one end of the third gear (19) close to the soil filter baffle (12), and a control mechanism is arranged on the upper part of the sampling head (2); After the sampling head (2) and the drill bit (3) are inserted into the soil, the turbine (11) is driven to rotate by the second motor (21). The rotation of the turbine (11) drives the gas in the soil to enter the sampling head (2). The rotation of the turbine (11) also drives the second transmission wheel (24) to rotate. The rotation of the second transmission wheel (24) drives the third gear (19) to rotate. The rotation of the third gear (19) drives the fixedly connected cleaning rod (18) to rotate, thereby rotating along the surface of the soil filter baffle (12). The soil particles attached to the surface of the soil filter baffle (12) are cleaned by the rotating cleaning rod (18), thereby ensuring that the gas in the soil can be effectively collected.

2. A soil gas sampling device for geological and mineral exploration according to claim 1, characterized in that: The control mechanism comprises a control housing (10) fixedly connected to the upper part of the sampling head (2), a control housing (14) being arranged on one side of the control housing (10), a first motor (15) being arranged inside the control housing (14), and a control component being arranged at the output end of the first motor (15).

3. A soil gas sampling device for geological and mineral exploration according to claim 2, characterized in that: The control assembly comprises a first gear (16) arranged at the output end of a first motor (15); the first gear (16) is meshingly connected with a second gear (17); the second gear (17) is fixedly connected with a movable baffle (13); and the movable baffle (13) is rotatably connected to a control housing (10).

4. A soil gas sampling device for geological and mineral exploration according to claim 1, characterized in that: The upper part of the hollow drill rod (1) is fixedly connected to a connection port (26), the upper part of the connection port (26) is provided with a connection pipe (6), and one end of the connection pipe (6) away from the connection port (26) is fixedly connected to a collection mechanism.

5. A soil gas sampling device for geological and mineral exploration according to claim 4, characterized in that: The collection mechanism comprises a sampling tube (5) fixedly connected to one end of a connecting tube (6), and a cylinder (9) is arranged at the lower part of the sampling tube (5).

6. A soil gas sampling device for geological and mineral exploration according to claim 5, characterized in that: The output end of the cylinder (9) is provided with a piston (25), and the piston (25) is slidably connected to the sampling tube (5).

7. The soil gas sampling device for geological and mineral exploration according to claim 1, characterized in that: A sealing mechanism is fixedly connected to the upper portion of the hollow drill rod (1), and two sealing clamps (8) are arranged at the bottom of the sealing mechanism.

8. A soil gas sampling device for geological and mineral exploration according to claim 7, characterized in that: The sealing mechanism comprises a third motor (30) arranged on the upper part of the sealing housing (7), and a sealing component is arranged at the output end of the third motor (30).

9. A soil gas sampling device for geological and mineral exploration according to claim 8, characterized in that: The sealing assembly comprises a rotating rod (27) arranged at the output end of a third motor (30), the rotating rod (27) having connecting rods (28) rotatably connected on both sides, the connecting rods (28) being rotatably connected to a slider (29), the slider (29) being slidably connected to a sealing housing (7), and the lower part of the slider (29) being fixedly connected to a sealing clamp (8).

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