Underground water sampling device

Abstract

The utility model provides an underground water sampling device, which belongs to the technical field of geological exploration and comprises a support frame, a sampling barrel, a plurality of operation shells, a connecting rod, a tractor and a pull rope, the support frame is provided with a traction hole and an operation hole; the sampling barrel is provided with a plurality of sample storage cavities, a plurality of discharge holes and a plurality of water inlet holes; the operation shell is fixedly mounted on the sampling barrel, and a through hole and a water passing hole are formed in the operation shell; the connecting rod is arranged in the plurality of operation shells in a sliding and penetrating manner, a plurality of elastic extrusion structures are arranged on the connecting rod, and a traction rope of the tractor is connected with the sampling barrel in a penetrating manner; and the pull rope is connected with the connecting rod. According to the underground water sampling device provided by the utility model, the plurality of sample storage cavities on the sampling barrel correspond to multiple layers of underground water, the pull rope is used for controlling the connecting rod to move upwards so as to open the operation shell, and the operation shell is communicated with the sample storage cavities, so that the aim of taking water in a layered manner is fulfilled under the condition of not disturbing a water body; the operation is simple and convenient, and the layered water taking accuracy is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of geological exploration, and more specifically relates to a groundwater sampling device. Background Art

[0002] Geological exploration is a method of exploration conducted through geophysical and geochemical prospecting, drilling, pit exploration, and sampling and testing. During geological exploration, due to long-term geological activity, the structure and genesis of the strata are complex, and each stratum has varying permeability. These strata are divided into aquifers and relatively impermeable layers based on their permeability. In some areas, multiple aquifers and impermeable layers may exist, necessitating groundwater sampling and analysis. Currently, stratified sampling requires multiple operations, which is cumbersome and can cause fluctuations in water flow, affecting sampling accuracy. Utility Model Content

[0003] The purpose of the utility model is to provide a groundwater sampling device to solve the technical problems in the prior art that the groundwater stratification sampling operation is relatively cumbersome and easily causes water flow fluctuations, thereby affecting the accuracy of sampling.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a groundwater sampling device, comprising:

[0005] The support frame is provided with traction holes and operation holes arranged at intervals;

[0006] The sampling tube is arranged vertically and has a plurality of sample storage cavities therein; a plurality of discharge holes and a plurality of water inlet holes are respectively connected to the plurality of sample storage cavities on the outer surface of the sampling tube;

[0007] There are multiple operating shells, which are fixedly mounted on the sampling cylinder and correspond one-to-one to the multiple sample storage cavities; the operating shells are provided with a through hole connected to the water inlet hole and a water hole connected to the interior of the operating shell;

[0008] A connecting rod is arranged vertically and slidably penetrates the plurality of operating housings; the connecting rod is provided with a plurality of elastic extrusion structures respectively located in the plurality of operating housings, the elastic extrusion structures being used to close or open the through hole and the water hole;

[0009] A tractor is fixedly mounted on the support frame; a traction rope of the tractor is passed through the traction hole and connected to the sampling tube;

[0010] A pull rope is passed through the operating hole, and a lower end of the pull rope is connected to the upper end of the connecting rod.

[0011] In a possible implementation, the through hole is provided at the lower outer portion of the operating shell, and the water hole is provided at the lower end surface of the operating shell; the elastic extrusion structure includes:

[0012] A limiting flange is mounted on the outer side of the connecting rod and is slidably connected to the inner wall of the operating shell; the outer side surface of the limiting flange corresponds to the through hole, and the lower end surface corresponds to the water hole;

[0013] An elastic member is sleeved on the connecting rod; the lower end of the elastic member abuts against the limiting flange, and the upper end abuts against the top of the operating shell.

[0014] In a possible implementation, the operating shell is provided with vertically arranged through holes, and the connecting rod is slidably inserted into the plurality of through holes; the operating shell is further provided with two sealing rings respectively installed at the bottom and the top of the operating shell.

[0015] In a possible implementation, there are multiple water holes, which are evenly arranged around the through hole.

[0016] In a possible implementation, an operating sleeve coaxially arranged with the connecting rod is provided on the support frame, the pull rope is passed through the operating sleeve, and a limit plate is provided at the upper end of the pull rope.

[0017] In a possible implementation, a plurality of water outlet pipes connected to the discharge holes are further provided on the outer surface of the sampling cylinder, and a detachable plug is provided on the water outlet pipe.

[0018] In a possible implementation, a plurality of horizontally arranged partition plates are provided in the sampling cylinder, and the plurality of partition plates divide the internal space of the sampling cylinder into a plurality of the sample storage cavities.

[0019] In a possible implementation, the upper ends of the sampling tube and the connecting rod are both provided with hanging rings.

[0020] In a possible implementation, a mounting plate and a plurality of support rods mounted on the mounting plate are provided at the lower end of the sampling cylinder. The upper ends of the support rods are fixedly connected to the mounting plate, and the lower ends of the support rods are provided with a tip structure.

[0021] In a possible implementation, the support frame includes a carrying plate and a plurality of supporting legs installed on the lower end of the carrying plate, and the traction hole and the operation hole are both provided on the carrying plate.

[0022] The beneficial effects of the groundwater sampling device provided by the present invention are as follows: compared with the prior art, the groundwater sampling device of the present invention, when in use, the traction rope of the tractor is fixedly connected to the upper end of the sampling barrel, and the lower end of the pull rope is fixedly connected to the upper end of the connecting rod; the tractor is started to control the sampling barrel to move downward until the sampling barrel enters the groundwater to be sampled, and the multiple operating shells on the sampling barrel are respectively located in different water layers; the staff pulls the pull rope, so that the pull rope drives the connecting rod to move upward, and the connecting rod acts on the elastic extrusion structure in the multiple operating shells to deform the elastic extrusion structure, thereby opening the passages on each operating shell Hole and water hole, external water enters the operating shell through the water hole, and then enters the corresponding sample storage cavity through the through hole and water inlet hole. Finally, the pull rope is loosened to reset the elastic extrusion structure and close the through hole and water hole. After the sampling cylinder is taken out, the taken groundwater is discharged through the discharge hole for detection and analysis. In this way, with the help of multiple sample storage cavities on the sampling cylinder corresponding to multiple layers of groundwater, the pull rope is used to control the connecting rod to move upward to open the operating shell, and the operating shell is connected with the sample storage cavity, so as to achieve the purpose of stratified water extraction without disturbing the water body. The operation is simple and convenient, and the stratified water extraction accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 A schematic structural diagram of a groundwater sampling device provided in an embodiment of the present utility model;

[0025] Figure 2 A schematic diagram of the connection between the sampling cylinder and the operating housing provided in an embodiment of the present utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 5 This is a schematic diagram of the connection between the support frame, traction device and pull rope provided in an embodiment of the utility model.

[0029] Among them, the reference numerals in the figures are:

[0030] 1. Support frame; 11. Traction hole; 12. Operation hole; 13. Operation sleeve; 14. Loading plate; 15. Support leg; 2. Sampling tube; 21. Sample chamber; 22. Discharge hole; 23. Water inlet hole; 24. Water outlet pipe; 25. Plug; 26. Partition plate; 27. Lifting ring; 28. Mounting plate; 29. ​​Support rod; 3. Operation shell; 31. Through hole; 32. Water hole; 33. Through hole; 34. Sealing ring; 4. Connecting rod; 5. Elastic extrusion structure; 51. Limiting flange; 52. Elastic part; 6. Puller; 61. Traction rope; 7. Pull rope; 71. Limiting plate. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0035] See also Figures 1 to 5The groundwater sampling device provided by the present invention is now described. A groundwater sampling device includes a support frame 1, a sampling tube 2, an operating shell 3, a connecting rod 4, a tractor 6 and a pull rope 7; the support frame 1 is provided with traction holes 11 and operating holes 12 arranged at intervals; the sampling tube 2 is arranged vertically, and a plurality of sample storage cavities 21 are provided inside; the outer surface of the sampling tube 2 is provided with a plurality of discharge holes 22 and a plurality of water inlet holes 23 respectively connected to the plurality of sample storage cavities 21; the number of the operating shells 3 is plural, fixedly mounted on the sampling tube 2, and corresponding to the plurality of sample storage cavities 21 one by one; the operating shell 3 is provided with a plurality of discharge holes 22 and a plurality of water inlet holes 23 respectively connected to the plurality of sample storage cavities 21 The through holes 31 are connected to each other, and the water holes 32 are connected to the inside of the operating shell 3; the connecting rod 4 is arranged vertically and is slidably passed through multiple operating shells 3; the connecting rod 4 is provided with multiple elastic extrusion structures 5 respectively located in multiple operating shells 3, and the elastic extrusion structures 5 are used to close or open the through holes 31 and the water holes 32; the tractor 6 is fixedly installed on the support frame 1; the traction rope 61 of the tractor 6 is passed through the traction hole 11 and connected to the sampling tube 2; the pull rope 7 is passed through the operating hole 12, and the lower end is connected to the upper end of the connecting rod 4.

[0036] Compared with the prior art, the groundwater sampling device provided by the present invention is as follows: when in use, the traction rope 61 of the traction device 6 is fixedly connected to the upper end of the sampling tube 2, and the lower end of the pull rope 7 is fixedly connected to the upper end of the connecting rod 4; the traction device 6 is started to control the sampling tube 2 to move downward until the sampling tube 2 enters the groundwater to be sampled, and the multiple operating shells 3 on the sampling tube 2 are respectively located in different water layers; the staff pulls the pull rope 7 so that the pull rope 7 drives the connecting rod 4 to move upward, and the connecting rod 4 acts on the elastic extrusion structure 5 in the multiple operating shells 3 to deform the elastic extrusion structure 5, thereby opening the through hole 31 and the water hole 32 on each operating shell 3, and the outside water passes through The water passes through the water hole 32 into the operating shell 3, and then passes through the through hole 31 and the water inlet hole 23 to enter the corresponding sample storage cavity 21. Finally, the pull rope 7 is loosened to reset the elastic extrusion structure 5 and close the through hole 31 and the water hole 32. After the sampling tube 2 is taken out, the taken groundwater is discharged through the discharge hole 22 for detection and analysis. In this way, with the help of the multiple sample storage cavities 21 on the sampling tube 2 corresponding to the multiple layers of groundwater, the pull rope 7 is used to control the connecting rod 4 to move upward to open the operating shell 3, and the operating shell 3 is connected to the sample storage cavity 21, so that the purpose of stratified water extraction is achieved without disturbing the water body. The operation is simple and convenient, and the stratified water extraction accuracy is high.

[0037] During the sampling process, after placing the sampling tube 2 in a fixed position in the water and waiting for the water flow to stabilize, the pull rope 7 is activated to move upward, causing the elastic extrusion structure 5 to move upward, thereby simultaneously opening multiple operating shells 3 and connecting the operating shells 3 with the sample storage chamber 21, so that the water flow smoothly enters the sample storage chamber 21 without disturbing the water layer.

[0038] See also Figures 1 to 3 As a specific embodiment of the groundwater sampling device provided by the present invention, a through hole 31 is formed at the lower outer portion of the operating housing 3, and a water hole 32 is formed at the lower end surface of the operating housing 3. The elastic extrusion structure 5 includes a limiting flange 51 and an elastic member 52. The limiting flange 51 is mounted on the outer surface of the connecting rod 4 and is slidably connected to the inner wall of the operating housing 3. The outer side surface of the limiting flange 51 corresponds to the through hole 31, and the lower end surface corresponds to the water hole 32. The elastic member 52 is sleeved on the connecting rod 4. The lower end of the elastic member 52 abuts the limiting flange 51, and the upper end abuts the top of the operating housing 3. In other words, multiple limiting flanges 51 are mounted on the connecting rod 4, and the multiple limiting flanges 51 are respectively located in multiple operating housings 3. The limiting flanges 51 abut the bottom of the operating housing 3, so that the lower end surface of the limiting flange 51 blocks the water hole 32, while the outer side surface of the limiting flange 51 blocks the through hole 31. The elastic member 52 is mounted on the connecting rod 4 and positioned above the stop flange 51. The lower end of the elastic member 52 acts on the stop flange 51, while the upper end acts on the top of the operating housing 3. The elastic force of the elastic member 52 applies a downward force to the stop flange 51, effectively sealing the water hole 32 and the through hole 31. When the pull cord 7 is used to control the upward movement of the connecting rod 4, the stop flange 51 moves upward, squeezing and deforming the elastic member 52, thereby opening the water hole 32 and the through hole 31. When the pull cord 7 is released, the stop flange 51 returns to its original position under the action of the elastic member 52. The elastic member 52 can be a spring.

[0039] See also Figure 2 and Figure 3 As a specific embodiment of the groundwater sampling device provided by the present invention, the operating housing 3 is provided with vertically arranged through-holes 33, and the connecting rod 4 slides through the multiple through-holes 33; the operating housing 3 is also provided with two sealing rings 34 respectively installed at the bottom and top of the operating housing 3; when the connecting rod 4 passes through multiple operating housings 3, the connecting rod 4 slides through the multiple through-holes 33, which can not only act on multiple operating housings 3 at the same time, but also guide the connecting rod 4 with the help of the multiple through-holes 33. At the same time, sealing rings 34 are installed at the top and bottom of the operating housing 3, so that the operating housing 3 has good sealing properties, and external water flow will not enter between the limiting flange 51 and the top of the operating housing 3, so as to ensure that the pull rope 7 can stably and quickly drive the limiting flange 51 to squeeze the elastic member 52 to move.

[0040] See also Figure 2 and Figure 3As a specific embodiment of the groundwater sampling device provided by the present invention, multiple water holes 32 are evenly arranged around the through hole 33. The provision of multiple water holes 32 allows groundwater to smoothly enter the operating housing 3, and then pass through the through hole 31 and the water inlet hole 23 into the sample storage chamber 21, preventing water from becoming blocked. The even arrangement of the multiple water holes 32 also prevents water from influxing the operating housing 3 without significant impact, thereby ensuring the stability of the sampling tube 2.

[0041] See also Figure 1 and Figure 5 As a specific embodiment of the groundwater sampling device provided by the present invention, an operating sleeve 13 is provided on the support frame 1 and is arranged coaxially with the connecting rod 4. The pull rope 7 is inserted into the operating sleeve 13, and a limit plate 71 is provided at the upper end of the pull rope 7. The operating sleeve 13 is vertically fixed to the upper end surface of the support frame 1, and the operating sleeve 13 is arranged coaxially with the connecting rod 4. The pull rope 7 is inserted into the operating sleeve 13 and connected to the upper end of the connecting rod 4 to ensure that pulling the pull rope 7 can smoothly and steadily drive the connecting rod 4 upward without getting stuck. At the same time, a limit plate 71 is installed at the upper end of the pull rope 7. The outer diameter of the limit plate 71 is larger than the outer diameter of the operating sleeve 13, so that the limit plate 71 can abut against the operating sleeve 13 to ensure that the pull rope 7 does not fall into the groundwater.

[0042] See also Figure 1 、 Figure 2 、 Figure 4 As a specific embodiment of the groundwater sampling device provided by the present invention, the outer surface of the sampling tube 2 is further provided with a plurality of water outlet pipes 24 connected to the respective discharge holes 22, and the water outlet pipes 24 are provided with detachably connected plugs 25. The water outlet pipes 24 are installed on the outer wall of the sampling tube 2, corresponding one-to-one with the plurality of discharge holes 22 and arranged in a relative manner, so that groundwater can be more conveniently and quickly extracted from the sample storage chamber 21. The plugs 25 are provided on the water outlet pipes 24 to reduce leakage of groundwater in the sample storage chamber 21. The water outlet pipes 24 are provided with internal threads, and the plugs 25 are provided with external threads that are mounted in conjunction with the internal threads.

[0043] See also Figure 1 and Figure 2As a specific embodiment of the groundwater sampling device provided by the present invention, a plurality of horizontally arranged partitions 26 are provided in the sampling tube 2. The plurality of partitions 26 divide the internal space of the sampling tube 2 into a plurality of sample storage chambers 21. The sampling tube 2 is a long cylindrical structure. A plurality of partitions 26 are installed in the sampling tube 2 at intervals. With the help of the plurality of partitions 26, the internal space of the sampling tube 2 is divided into sample storage chambers 21 arranged in sequence from top to bottom. The discharge hole 22 and the water inlet hole 23 are connected to the corresponding sample storage chamber 21. The plurality of discharge holes 22 are arranged at intervals along the circumference of the sampling tube 2 to facilitate the later extraction of groundwater from the sample storage chamber 21.

[0044] See also Figures 1 to 3 As a specific embodiment of the groundwater sampling device provided by the utility model, the upper ends of the sampling tube 2 and the connecting rod 4 are both provided with a lifting ring 27; the installation of the lifting ring 27 allows the lower ends of the traction rope 61 and the pull rope 7 to be firmly connected to the sampling tube 2 and the connecting rod 4 respectively, so as to ensure that the sampling tube 2 works stably and the process of manipulating the connecting rod 4 to move upward is more accurate and reliable.

[0045] See also Figure 1 and Figure 2 As a specific embodiment of the groundwater sampling device provided by the present invention, the lower end of the sampling tube 2 is provided with a mounting plate 28 and multiple support rods 29 mounted on the mounting plate 28. The upper ends of the support rods 29 are fixedly connected to the mounting plate 28, and the lower ends are provided with pointed structures. When the sampling tube 2 needs to be extended into the bottom surface of the groundwater, the support rods 29 are inserted into the bottom surface of the groundwater with the help of the pointed structures, ensuring the stability of the entire sampling tube 2. The provision of multiple support rods 29 also allows the sampling tube 2 to better adapt to the groundwater environment.

[0046] See also Figure 1 and Figure 5 As a specific embodiment of the groundwater sampling device provided by the present invention, the support frame 1 includes a support plate 14 and a plurality of support legs 15 mounted on the lower end of the support plate 14. The towing hole 11 and the operating hole 12 are both provided on the support plate 14. During installation, the support legs 15 are supported on the ground, and the support plate 14 is located above the ground. The tractor 6 is fixedly mounted on the support plate 14 and is located on one side of the towing hole 11. One end of the towing rope 61 passes through the towing hole 11 from top to bottom and is fixedly connected to the upper end of the sampling tube 2. The operating hole 12 is located on one side of the towing hole 11 and directly above the operating housing 3. The pull rope 7 passes through the operating hole 12 and is fixedly connected to the connecting rod 4 on the operating housing 3. The multiple support legs 15 ensure a stable installation of the support frame 1.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A groundwater sampling device, characterized in that: include: The support frame is provided with traction holes and operation holes arranged at intervals; The sampling tube is arranged vertically and has a plurality of sample storage cavities therein; a plurality of discharge holes and a plurality of water inlet holes are respectively connected to the plurality of sample storage cavities on the outer surface of the sampling tube; There are multiple operating shells, which are fixedly mounted on the sampling cylinder and correspond one-to-one to the multiple sample storage cavities; the operating shells are provided with a through hole connected to the water inlet hole and a water hole connected to the interior of the operating shell; A connecting rod is arranged vertically and slidably penetrates the plurality of operating housings; the connecting rod is provided with a plurality of elastic extrusion structures respectively located in the plurality of operating housings, the elastic extrusion structures being used to close or open the through hole and the water hole; A tractor is fixedly mounted on the support frame; a traction rope of the tractor is passed through the traction hole and connected to the sampling tube; A pull rope is passed through the operating hole, and a lower end of the pull rope is connected to the upper end of the connecting rod.

2. The groundwater sampling device according to claim 1, characterized in that: The through hole is opened at the lower part of the outer side of the operating shell, and the water hole is opened at the lower end surface of the operating shell; the elastic extrusion structure includes: A limiting flange is mounted on the outer side of the connecting rod and is slidably connected to the inner wall of the operating shell; the outer side surface of the limiting flange corresponds to the through hole, and the lower end surface corresponds to the water hole; An elastic member is sleeved on the connecting rod; the lower end of the elastic member abuts against the limiting flange, and the upper end abuts against the top of the operating shell.

3. The groundwater sampling device according to claim 2, characterized in that: The operating shell is provided with vertically arranged through holes, and the connecting rod is slidably inserted into the through holes. The operating shell is also provided with two sealing rings respectively installed at the bottom and the top of the operating shell.

4. The groundwater sampling device according to claim 3, characterized in that: There are multiple water holes, which are evenly arranged around the through hole.

5. The groundwater sampling device according to claim 1, characterized in that: An operating sleeve coaxially arranged with the connecting rod is provided on the support frame, the pull rope is passed through the operating sleeve, and a limiting plate is provided on the upper end of the pull rope.

6. The groundwater sampling device according to claim 1, characterized in that: A plurality of water outlet pipes connected to the discharge holes are also provided on the outer surface of the sampling cylinder, and a detachable plug is provided on the water outlet pipe.

7. The groundwater sampling device according to claim 1, characterized in that: A plurality of horizontally arranged partition plates are provided in the sampling cylinder, and the plurality of partition plates divide the internal space of the sampling cylinder into a plurality of sample storage cavities.

8. The groundwater sampling device according to claim 1, characterized in that: The upper ends of the sampling tube and the connecting rod are both provided with hanging rings.

9. The groundwater sampling device according to claim 1, characterized in that: The lower end of the sampling cylinder is provided with a mounting plate and a plurality of support rods mounted on the mounting plate. The upper ends of the support rods are fixedly connected to the mounting plate, and the lower ends are provided with a tip structure.

10. The groundwater sampling device according to claim 1, characterized in that: The support frame includes a bearing plate and a plurality of supporting legs installed on the lower end of the bearing plate, and the traction hole and the operation hole are both arranged on the bearing plate.

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