Hydrogeological stratified sampling device

Abstract

The utility model discloses a hydrogeological stratified sampling device, which relates to the technical field of hydrologic engineering and comprises a base, a screw rod driving mechanism is mounted at the top of the base, a fixed cylinder is arranged above the base and connected with the screw rod driving mechanism, and a plurality of inner sampling holes are uniformly formed in the inner wall of one side of the fixed cylinder. When the fixed cylinder and the blocking sleeve enter the holes, the plurality of inner sampling holes in the fixed cylinder can be blocked by the blocking sleeve, so that soil cannot enter the holes firstly. When the sampling device reaches a specified depth, a plurality of electric telescopic rods are started, so that a plurality of outer sampling holes in a blocking sleeve correspond to a plurality of inner sampling holes in a fixed cylinder in position, and the output ends of the electric telescopic rods continuously extend, so that a plurality of sampling cylinders are moved out of the inner sampling holes, and layered sampling can be realized while the sampling accuracy is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrological engineering, in particular to a hydrogeological stratified sampling device. Background Art

[0002] Hydrogeology, a branch of geology, refers to the various changes and movement phenomena of groundwater in nature. Hydrogeology is the science of studying groundwater. It mainly studies the distribution and formation of groundwater, the physical properties and chemical composition of groundwater, groundwater resources and their rational use, the adverse effects of groundwater on engineering construction and mining and their prevention and control, etc.

[0003] In the prior art, the comparative document publication number CN219736878U discloses a hydrogeological engineering geological survey device, which can sample soil at different depths in layers. However, the sampling tube is always in an open state during its downward movement. During sampling, soil at other depths can easily enter the sampling tube, resulting in mixing, which makes it impossible to accurately sample soil at the corresponding depth. For this reason, we disclose a hydrogeological layered sampling device. Utility Model Content

[0004] The utility model provides a hydrogeological stratified sampling device, which can perform stratified sampling while maintaining sampling accuracy, so as to solve the problem that when a traditional device is sampling, soil at other depths easily enters the sampling tube, thereby causing mixing, and thus making it impossible to accurately sample soil at a corresponding depth.

[0005] To achieve the above objectives, the utility model provides the following technical solutions: a hydrogeological stratified sampling device, comprising a base, a screw drive mechanism installed on the top of the base, a fixed cylinder arranged above the base, the fixed cylinder being connected to the screw drive mechanism, a plurality of evenly arranged inner sampling holes being opened on the inner wall on one side of the fixed cylinder, a blocking sleeve being slidably sleeved on the fixed cylinder, a plurality of evenly arranged outer sampling holes being opened on the inner wall on one side of the blocking sleeve, the plurality of outer sampling holes being staggered with the plurality of inner sampling holes in sequence, a sampling mechanism being installed on the inner wall on the other side of the fixed cylinder, the sampling mechanism corresponding to the positions of the plurality of inner sampling holes, and a moving mechanism for moving the blocking sleeve being installed on the screw drive mechanism.

[0006] As a preferred technical solution of the utility model, the sampling mechanism includes a plurality of electric telescopic rods fixedly mounted on the inner wall of a fixed tube, a mounting plate being fixedly mounted on the output ends of the plurality of electric telescopic rods, a plurality of internal threaded sleeves being fixedly mounted on the side of the mounting plate away from the electric telescopic rods, a plurality of sampling tubes being threadedly mounted in the plurality of internal threaded sleeves, the opening directions of the plurality of sampling tubes being away from the mounting plate, and the plurality of sampling tubes respectively corresponding to the positions of the plurality of internal sampling holes.

[0007] As a preferred technical solution of the utility model, the moving mechanism includes top rods fixedly installed on both sides of the mounting plate, extrusion wheels are rotatably sleeved on the two top rods, two sliding columns are fixedly installed on the inner wall of the blocking sleeve, V-shaped rods are fixedly installed on the tops of the two sliding columns, V-shaped holes are opened on the sides of the two V-shaped rods, and two extrusion wheels are movably installed in the two V-shaped holes.

[0008] As a preferred technical solution of the utility model, the V-shaped hole includes a connected horizontal hole and an inclined hole, the horizontal hole is located on the side of the inclined hole away from the electric telescopic rod, and the side of the extrusion wheel contacts the top inner wall of the inclined hole.

[0009] As a preferred technical solution of the utility model, four sliding holes are opened on the inner wall of the fixed cylinder, and the two ends of the two sliding columns are slidably installed in the four sliding holes respectively.

[0010] As a preferred technical solution of the utility model, a rotating motor is fixedly mounted on the bottom inner wall of the fixed cylinder, and the output end of the rotating motor passes through the bottom inner wall of the fixed cylinder and is fixedly mounted with a breaking cone.

[0011] As a preferred technical solution of the utility model, the screw drive mechanism includes a U-shaped frame fixedly installed on the top of the base, two servo motors are fixedly installed on the top of the U-shaped frame, screws are fixedly installed on the output ends of the two servo motors, the bottom ends of the two screws pass through the top of the U-shaped frame and are rotatably installed on the top of the base, a movable plate is threadedly sleeved on the two screws, the top of the fixed cylinder is fixedly installed on the bottom of the movable plate, and an avoidance hole is opened in the base, and the avoidance hole corresponds to the position of the blocking sleeve.

[0012] Compared with the prior art, the utility model provides a hydrogeological stratified sampling device, which has the following beneficial effects:

[0013] When the fixed tube and the blocking sleeve enter the hole, the blocking sleeve can block the multiple inner sampling holes on the fixed tube, so that the soil will not enter first. When reaching the specified depth, by starting multiple electric telescopic rods, the multiple outer sampling holes on the blocking sleeve and the multiple inner sampling holes on the fixed tube can be aligned, and the output ends of the multiple electric telescopic rods continue to extend, so that the multiple sampling tubes are moved out of the multiple inner sampling holes, and layered sampling can be performed while maintaining sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 A three-dimensional diagram showing the connection between the fixed cylinder and the blocking sleeve;

[0016] Figure 3 It is a partial cutaway view of the fixed cylinder and the blocking sleeve;

[0017] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0018] Figure 5 A half-section view of the fixed cylinder and the blocking sleeve;

[0019] Figure 6 It is a cross-sectional view of the fixed cylinder and the blocking sleeve at the V-shaped rod.

[0020] In the figure: 1. base; 2. U-shaped frame; 3. servo motor; 4. screw; 5. moving plate; 6. fixed cylinder; 7. blocking sleeve; 8. external sampling hole; 9. internal sampling hole; 10. electric telescopic rod; 11. mounting plate; 12. internal threaded sleeve; 13. sampling cylinder; 14. push rod; 15. extrusion wheel; 16. V-shaped rod; 17. V-shaped hole; 18. sliding column; 19. sliding hole; 20. rotating motor; 21. earth-breaking cone; 22. power supply; 23. control panel. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0022] Figures 1 to 6 It is the best embodiment of the utility model, and the following Figures 1 to 6 The utility model is further described.

[0023] A hydrogeological stratified sampling device includes a base 1, a screw drive mechanism is installed on the top of the base 1, a fixed cylinder 6 is arranged above the base 1, and the fixed cylinder 6 is connected to the screw drive mechanism. A plurality of evenly arranged inner sampling holes 9 are opened on the inner wall of one side of the fixed cylinder 6, a blocking sleeve 7 is slidably sleeved on the fixed cylinder 6, a plurality of evenly arranged outer sampling holes 8 are opened on the inner wall of one side of the blocking sleeve 7, and the plurality of outer sampling holes 8 are staggered with the plurality of inner sampling holes 9 in sequence. A sampling mechanism is installed on the inner wall of the other side of the fixed cylinder 6, and the sampling mechanism corresponds to the position of the plurality of inner sampling holes 9, and a moving mechanism for moving the blocking sleeve 7 is installed on the screw drive mechanism.

[0024] By means of the above structure: the blocking sleeve 7 can block the multiple inner sampling holes 9 on the fixed cylinder 6, so that the soil will not enter first. When the specified depth is reached, the sampling mechanism can drive the moving mechanism to move, and the moving mechanism can move the blocking sleeve 7 upward, so that the multiple outer sampling holes 8 on the blocking sleeve 7 and the multiple inner sampling holes 9 on the fixed cylinder 6 correspond to each other, and then the sampling mechanism can perform layered sampling while maintaining sampling accuracy.

[0025] Specifically, the sampling mechanism includes a plurality of electric telescopic rods 10 fixedly mounted on the inner wall of the fixed cylinder 6, a mounting plate 11 fixedly mounted on the output ends of the plurality of electric telescopic rods 10, a plurality of internal threaded sleeves 12 fixedly mounted on the side of the mounting plate 11 away from the electric telescopic rods 10, and a plurality of sampling cylinders 13 threadedly mounted in the plurality of internal threaded sleeves 12. The end of the sampling cylinder 13 close to the mounting plate 11 is provided with an external thread, and the external thread matches the internal threaded sleeve 12. The opening direction of the plurality of sampling cylinders 13 is away from the mounting plate 11, and the plurality of sampling cylinders 13 respectively correspond to the positions of the plurality of internal sampling holes 9.

[0026] In this embodiment, the plurality of electric telescopic rods 10 are activated to move the mounting plate 11, and the movement of the mounting plate 11 causes the plurality of internal thread sleeves 12 and the plurality of sampling tubes 13 to move, thereby facilitating sampling. At the same time, the internal thread sleeves 12 and the sampling tubes 13 are threadedly connected, which facilitates the removal of the sampling tubes 13 at a later stage.

[0027] Specifically, the moving mechanism includes a mandrel 14 fixedly mounted on both sides of the mounting plate 11. Extrusion wheels 15 are rotatably sleeved on the two mandrels 14, two sliding columns 18 are fixedly mounted on the inner wall of the blocking sleeve 7, V-shaped rods 16 are fixedly mounted on the tops of the two sliding columns 18, and V-shaped holes 17 are opened on the sides of the two V-shaped rods 16, and two extrusion wheels 15 are movably mounted in the two V-shaped holes 17. The V-shaped hole 17 includes a horizontal hole and an inclined hole that are connected, the horizontal hole is located on the side of the inclined hole away from the electric telescopic rod 10, and the side of the extrusion wheel 15 contacts the top inner wall of the inclined hole. When the extrusion wheel 15 moves from the top inner wall of the inclined hole into the horizontal hole, the distance that the blocking sleeve 7 moves upward at this time makes the positions of multiple external sampling holes 8 correspond to the positions of multiple internal sampling holes 9, and the aperture of the external sampling hole 8 is larger than the aperture of the internal sampling hole 9, so that the external sampling hole 8 covers the internal sampling hole 9, which is convenient for sampling.

[0028] Specifically, four sliding holes 19 are formed on the inner wall of the fixed cylinder 6, and the two ends of the two sliding posts 18 are slidably installed in the four sliding holes 19. The bottom of the sliding post 18 contacts the bottom inner wall of the sliding hole 19, and there is space between the top inner wall of the sliding hole 19 and the top of the sliding post 18. The advantage of this arrangement is that it is easy to avoid the sliding post 18, so that the sliding post 18 has space to move upward.

[0029] Specifically, a rotating motor 20 is fixedly mounted on the bottom inner wall of the fixed cylinder 6, and the output end of the rotating motor 20 penetrates the bottom inner wall of the fixed cylinder 6 and is fixedly mounted with a breaking cone 21. After penetrating the bottom inner wall of the fixed cylinder 6, the output end of the rotating motor 20 does not affect the rotation of the output end of the rotating motor 20.

[0030] In this embodiment, the rotary motor 20 is started to rotate the earth-breaking cone 21, thereby facilitating earth-breaking.

[0031] Specifically, the screw drive mechanism includes a U-shaped frame 2 fixedly mounted on the top of the base 1, two servo motors 3 are fixedly mounted on the top of the U-shaped frame 2, screws 4 are fixedly mounted on the output ends of the two servo motors 3, and the bottom ends of the two screws 4 pass through the top of the U-shaped frame 2 and are rotatably mounted on the top of the base 1. After the bottom ends of the screws 4 pass through the top of the base 1, the rotation of the screws 4 is not affected. The two screws 4 are threadedly sleeved with movable plates 5. During installation, a mounting hole is provided on the movable plate 5, and a screw guide sleeve is provided in the mounting hole. The screw guide sleeve is installed in cooperation with the screw 4, so that the screw 4 will move the movable plate 5 downward when it rotates clockwise. The top of the fixed cylinder 6 is fixedly mounted on the bottom of the movable plate 5. The base 1 is provided with an avoidance hole, and the avoidance hole corresponds to the position of the blocking sleeve 7. Four movable wheels are fixedly mounted on the bottom of the base 1. In this embodiment, by starting the two servo motors 3, the two screw rods 4 can be rotated synchronously clockwise, so that the movable plate 5 moves downward. The movement of the movable plate 5 drives the fixed tube 6 and the blocking sleeve 7 to move downward, thereby facilitating the fixed tube 6 to enter the underground for sampling.

[0032] A control panel 23 is installed on the side of the U-shaped frame 2, and a power supply 22 is installed on the top of the U-shaped frame 2. The servo motor 3, the rotating motor 20 and the electric telescopic rod 10 can be powered by the power supply 22, and the servo motor 3, the rotating motor 20 and the electric telescopic rod 10 can be controlled by the control panel 23.

[0033] The working principle and use process of the utility model are as follows: when in use, the device is moved to a specified position by the moving wheel, and then the two screw rods 4 are synchronously rotated clockwise by starting the two servo motors 3, so that the moving plate 5 moves downward, and the movement of the moving plate 5 drives the fixed cylinder 6 and the blocking sleeve 7 to move downward.

[0034] At the same time, the rotating motor 20 is started to rotate the earth-breaking cone 21, thereby facilitating earth-breaking. When the fixed tube 6 and the blocking sleeve 7 enter the hole, the multiple internal sampling holes 9 on the fixed tube 6 can be blocked by the blocking sleeve 7, so that the soil does not enter first. When the specified depth is reached, the mounting plate 11 is moved by starting multiple electric telescopic rods 10, and the movement of the mounting plate 11 causes the multiple internal threaded sleeves 12 and multiple sampling tubes 13 to move. The movement of the mounting plate 11 causes the top rod 14 and the two extrusion wheels 15 to move, and the two extrusion wheels 15 squeeze the inner walls of the two inclined holes, so that the two V-shaped rods 16 and the two sliding columns 18 move upward. The movement of the two sliding columns 18 drives the blocking sleeve 7 to move upward. When the two extrusion wheels 15 enter the two horizontal holes, the multiple external sampling holes 8 on the blocking sleeve 7 and the multiple internal sampling holes 9 on the fixed tube 6 correspond to each other. The output ends of the multiple electric telescopic rods 10 continue to extend, so that the multiple sampling tubes 13 are moved out of the multiple inner sampling holes 9. As the electric telescopic rods 10 continue to squeeze, the open ends of the sampling tubes 13 are inserted into the soil on the inner wall of the borehole to complete the layered sampling. After the sampling is completed, the output ends of the electric telescopic rods 10 are retracted, so that the multiple sampling tubes 13 are retracted, and then the two servo motors 3 are started, so that the two screws 4 rotate counterclockwise synchronously, so that the fixed tube 6 and the blocking sleeve 7 move upward, so that the fixed tube 6 and the blocking sleeve 7 can be taken out.

[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A hydrogeological stratified sampling device, comprising a base (1), characterized in that: A screw drive mechanism is installed on the top of the base (1); a fixed cylinder (6) is arranged above the base (1); the fixed cylinder (6) is connected to the screw drive mechanism; a plurality of evenly arranged inner sampling holes (9) are opened on the inner wall of one side of the fixed cylinder (6); a blocking sleeve (7) is slidably sleeved on the fixed cylinder (6); a plurality of evenly arranged outer sampling holes (8) are opened on the inner wall of one side of the blocking sleeve (7); the plurality of outer sampling holes (8) are arranged staggered with the plurality of inner sampling holes (9) in sequence; a sampling mechanism is installed on the inner wall of the other side of the fixed cylinder (6); the sampling mechanism corresponds to the position of the plurality of inner sampling holes (9); and a moving mechanism for moving the blocking sleeve (7) is installed on the screw drive mechanism.

2. A hydrogeological stratified sampling device according to claim 1, characterized in that: The sampling mechanism comprises a plurality of electric telescopic rods (10) fixedly mounted on the inner wall of the fixed cylinder (6); a mounting plate (11) is fixedly mounted on the output ends of the plurality of electric telescopic rods (10); a plurality of internal threaded sleeves (12) are fixedly mounted on the side of the mounting plate (11) away from the electric telescopic rods (10); a plurality of sampling cylinders (13) are threadedly mounted inside the plurality of internal threaded sleeves (12); the opening directions of the plurality of sampling cylinders (13) are away from the mounting plate (11); and the plurality of sampling cylinders (13) respectively correspond to the positions of the plurality of internal sampling holes (9).

3. A hydrogeological stratified sampling device according to claim 2, characterized in that: The moving mechanism comprises push rods (14) fixedly mounted on both sides of the mounting plate (11), and extrusion wheels (15) are rotatably sleeved on the two push rods (14). Two sliding columns (18) are fixedly mounted on the inner wall of the blocking sleeve (7), and V-shaped rods (16) are fixedly mounted on the tops of the two sliding columns (18). The sides of the two V-shaped rods (16) are provided with V-shaped holes (17), and the two extrusion wheels (15) are movably mounted in the two V-shaped holes (17).

4. A hydrogeological stratified sampling device according to claim 3, characterized in that: The V-shaped hole (17) comprises a horizontal hole and an oblique hole which are connected to each other, the horizontal hole being located on a side of the oblique hole away from the electric telescopic rod (10), and the side of the extrusion wheel (15) is in contact with the top inner wall of the oblique hole.

5. A hydrogeological stratified sampling device according to claim 3, characterized in that: Four sliding holes (19) are provided on the inner wall of the fixed cylinder (6), and the two ends of the two sliding columns (18) are slidably mounted in the four sliding holes (19) respectively.

6. A hydrogeological stratified sampling device according to claim 1, characterized in that: A rotating motor (20) is fixedly mounted on the inner wall of the bottom side of the fixed cylinder (6); an output end of the rotating motor (20) passes through the inner wall of the bottom side of the fixed cylinder (6) and is fixedly mounted with a soil breaking cone (21).

7. A hydrogeological stratified sampling device according to claim 1, characterized in that: The screw drive mechanism comprises a U-shaped frame (2) fixedly mounted on the top of the base (1), two servo motors (3) fixedly mounted on the top of the U-shaped frame (2), screws (4) fixedly mounted on the output ends of the two servo motors (3), the bottom ends of the two screws (4) pass through the top of the U-shaped frame (2) and are rotatably mounted on the top of the base (1), a movable plate (5) is threadedly sleeved on the two screws (4), the top of the fixed cylinder (6) is fixedly mounted on the bottom of the movable plate (5), and the base (1) is provided with an avoidance hole, the avoidance hole corresponding to the position of the blocking sleeve (7).

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