Underground water detection sampling and collecting device

Abstract

The utility model relates to the technical field of underground water sampling, in particular to an underground water detecting, sampling and collecting device which comprises a fixing seat, a first mounting seat and a second mounting seat are welded to the two sides of the bottom of the fixing seat respectively, a plurality of collecting cylinders are installed between the first mounting seat and the second mounting seat at equal intervals, and an adjusting assembly is arranged on the second mounting seat. A piston block is slidably connected to the interior of each collecting barrel, an air suction pipe is fixedly connected to the first mounting base, a connecting hose fixedly communicates between one side of each collecting barrel and the air suction pipe, and a water suction pipe fixedly communicates with the middle of the side, away from the connecting hose, of each collecting barrel; according to the utility model, the plurality of collecting barrels are matched with the adjusting assembly, so that underground water samples at different floor heights can be extracted and collected in a layered manner, the layered collection efficiency of the underground water samples is improved, the mixing of the samples at different floor heights is avoided, and the accuracy of a detection result is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater sampling, in particular to a groundwater detection sampling and collecting device. Background Art

[0002] Groundwater monitoring is for groundwater monitoring management departments to monitor groundwater levels, water quality and other data within their jurisdiction in order to keep abreast of dynamic changes and provide long-term protection for groundwater. Groundwater monitoring has multiple functions such as measuring water levels, pore pressure, permeability and water sampling. Groundwater detection sampling devices are required for sampling.

[0003] For example, in the prior art, there is a sampling device for groundwater detection with a publication number of CN220136745U. Although the device can avoid the problem of filter hole blockage and reduced water extraction efficiency during use, when the sampling device is used to sample groundwater in layers, the method of directly extracting water using a hose and a connecting pipe will cause the water samples of each layer to mix during the extraction process, thereby causing inaccurate test results when testing water samples.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a groundwater detection sampling and collection device to solve the above-mentioned technical defects. The utility model can extract and collect groundwater samples at different levels at the same time through multiple collecting tubes and adjusting components, thereby improving the efficiency of stratified collection of groundwater samples and avoiding mixing between samples at different levels, thereby ensuring the accuracy of the detection results; and while extracting groundwater samples, it can simultaneously clean up impurities filtered on the filter, effectively avoiding the problem of filter clogging and reducing sampling efficiency.

[0006] This is achieved through the following technical solutions:

[0007] A groundwater detection sampling and collecting device comprises a fixed seat, with mounting seat 1 and mounting seat 2 welded to both sides of the bottom of the fixed seat respectively, a plurality of collecting cylinders are equidistantly installed between the mounting seat 1 and the mounting seat 2, the insides of the mounting seat 1 and the mounting seat 2 are fixedly connected with sliding rods, the collecting cylinders are fixedly connected with sliding blocks slidably connected to the corresponding sliding rods, the mounting seat 2 is provided with an adjustment component, the insides of the respective collecting cylinders are slidably connected with piston blocks, the mounting seat 1 is fixedly connected with an air suction pipe, a connecting hose is fixedly connected between one side of the collecting cylinder and the air suction pipe, and a water suction pipe is fixedly connected to the middle of a side of the collecting cylinder away from the connecting hose.

[0008] Preferably, the adjustment assembly includes an adjustment rod and a variable pitch guide groove, an ear plate is symmetrically fixedly connected to the side of the mounting seat 2 away from the collecting cylinder, an adjustment rod is rotatably connected between the ear plates, a through hole slidably connected to the adjustment rod is provided on the slider on the side of the collecting cylinder close to the mounting seat 2, a guide column is fixedly connected to the inner wall of one side of the through hole, and a variable pitch guide groove adapted to the corresponding guide column is provided on the outer wall of the adjustment rod.

[0009] Preferably, the top end of the adjusting rod passes through the corresponding ear plate and is fixedly connected to a turntable, a spring groove is opened on the top of the fixing seat, and a movable rod slidably connected to the spring groove is fixedly connected to the spring groove through a compression spring, and the top of the movable rod is fixedly connected to a limited U-shaped plate.

[0010] Preferably, a plurality of limiting holes distributed in a ring array relative to the adjusting rod are formed at the bottom of the turntable, and limiting pins matched with the limiting holes are fixedly connected to the limiting U-shaped plate.

[0011] Preferably, the free end of the water suction pipe is fixedly connected to a conical water inlet cover, and a filter is fixedly connected inside the conical water inlet cover.

[0012] Preferably, a mounting block is fixedly connected to the inner wall of the water suction pipe, and a rotating rod is rotatably connected to the mounting block, one end of the rotating rod is fixedly connected to an impeller, and the other end of the rotating rod passes through the filter screen and is fixedly connected to a brush plate.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model arranges a plurality of collecting cylinders of different heights between the first mounting seat and the second mounting seat, and cooperates with the movement of the internal piston block to simultaneously extract and collect groundwater samples of each layer height, thereby improving the efficiency of collecting groundwater samples by layer and avoiding mixing between samples of each layer height, thereby ensuring the accuracy of the test results; and while extracting groundwater samples, the groundwater samples enter the collecting cylinder through the conical water inlet cover and the water suction pipe, driving the impeller to rotate, and cooperating with the rotating rod to drive the brush plate to rotate, so as to clean the impurities filtered on the filter screen, thereby avoiding the problem of filter screen clogging and reducing the sampling efficiency;

[0015] (2) The utility model can adjust the distance between two adjacent collecting tubes by rotating the adjusting rod in conjunction with the variable-distance guide groove and the guide column, thereby facilitating the adjustment of groundwater sample sampling operations at different levels according to actual detection needs, thereby increasing the scope of use of the device; and after the position of the collecting tube is adjusted, the limit pin on the limit U-shaped frame cooperates with the corresponding limit hole, which can avoid the problem of the position of the collecting tube changing during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0019] Figure 3 It is a structural schematic diagram of the fixing seat of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the collecting tube of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the adjustment component of the utility model;

[0022] Figure 6 It is a schematic diagram of the cooperation between the limiting U-shaped plate and the turntable of the utility model.

[0023] Legend:

[0024] 1. Fixed seat; 11. Mounting seat 1; 12. Mounting seat 2; 13. Sliding rod; 14. Inhalation pipe; 15. Ear plate; 16. Compression spring; 17. Movable rod; 18. Limiting U-shaped plate; 19. Limiting pin;

[0025] 2. Collection cylinder; 21. Sliding block; 22. Piston block; 23. Connecting hose; 24. Water suction pipe; 25. Through hole; 26. Guide column; 27. Conical water inlet cover; 28. Filter screen; 29. ​​Rotating rod; 210. Impeller; 211. Brush plate;

[0026] 3. Adjustment assembly; 31. Adjustment rod; 32. Variable pitch guide groove; 33. Turntable; 34. Limit hole. DETAILED DESCRIPTION

[0027] 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.

[0028] In view of the problem that mixing is easy to occur during the stratified extraction of water samples by technology, which leads to inaccurate test results when the water samples are tested, the following solutions can be used to solve it;

[0029] See also Figure 1 - Figure 6As shown, a groundwater detection sampling and collecting device comprises a fixing seat 1, and a mounting seat 11 and a mounting seat 2 12 are welded on both sides of the bottom of the fixing seat 1, respectively. The mounting seat 11 and the mounting seat 2 12 have the same structure and are used to install a plurality of collecting tubes 2 of different heights between the two, so as to facilitate stratified sampling and collection of groundwater, improve the efficiency of stratified collection of groundwater samples, and avoid mixing between samples of different layers, thereby ensuring the accuracy of the detection result. A plurality of collecting tubes 2 are equidistantly installed between the mounting seat 11 and the mounting seat 2 12, and the interiors of the mounting seat 11 and the mounting seat 2 12 are fixedly connected with sliding rods 13, and a slider 21 slidably connected to the collecting tube 2 is fixedly connected to the corresponding sliding rod 13, and an adjusting component 3 is arranged on the mounting seat 2, and the collecting tube 2 is slidably installed between the mounting seat 11 and the mounting seat 2 12 by the provided sliding rod 13 and the slider 21, and the use of the adjusting component 3 can adjust the distance between two adjacent collecting tubes 2, so as to facilitate the sampling operation of groundwater samples of different layers according to actual detection needs, thereby improving the use range of the device;

[0030] The interior of each collecting tube 2 is slidably connected to a piston block 22, and the piston block 22 slides inside the collecting tube 2 to collect groundwater samples outside the collecting tube 2. A suction pipe 14 is fixedly connected to the mounting seat 11, and a connecting hose 23 is fixedly connected between one side of the collecting tube 2 and the suction pipe 14. The suction pipe 14 and the connecting hose 23 cooperate with an external negative pressure device to evacuate one side of the piston block 2 in the collecting tube 2. On the one hand, it drives the piston block 22 to move to achieve the effect of extracting sample water. On the other hand, the gas in the collecting tube 2 is discharged through the suction pipe 14 and the connecting hose 23 to prevent the gas inside the collecting tube 2 from being discharged into the water. Water bubbles are generated, causing the water around the collecting tube 2 to flow, resulting in partial mixing of water at each layer, which affects the detection result. The collecting tube 2 is connected to the suction pipe 14 through the connecting hose 23 to avoid interference with the position adjustment of the collecting tube 2. At the same time, air is inflated into the collecting tube 2 through the suction pipe 14 and the connecting hose 23, which can quickly discharge the collected sample water. A suction pipe 24 is fixedly connected to the middle of the side of the collecting tube 2 away from the connecting hose 23. When the piston block 22 moves toward the side of the connecting hose 23, the air pressure inside the collecting tube 2 on the other side of the piston block 2 is reduced, and the suction pipe 24 cooperates to achieve rapid extraction of sample water.

[0031] The adjustment assembly 3 includes an adjustment rod 31 and a pitch-changing guide groove 32. An ear plate 15 is symmetrically fixedly connected to the side of the mounting seat 12 away from the collecting tube 2. The adjustment rod 31 is rotatably connected between the ear plates 15. A through hole 25 slidably connected to the adjustment rod 31 is provided on the slider 21 on the side of the collecting tube 2 close to the mounting seat 12. A guide column 26 is fixedly connected to the inner wall of one side of the through hole 25. A pitch-changing guide groove 32 adapted to the corresponding guide column 26 is provided on the outer wall of the adjustment rod 31. By rotating the adjustment rod 31 to cooperate with the pitch-changing guide groove 32 and the guide column 26, two adjacent collecting tubes can be adjusted. 2, so as to facilitate the adjustment of groundwater sample sampling operations at different layers according to actual detection needs. The variable pitch guide groove 32 located in the middle of the adjusting rod 31 is annular in structure. When the adjusting rod 31 rotates, the collecting barrel 2 at this position will not change position. The adjusting rod 31 is located on both sides of the middle annular variable pitch guide groove 32, and the spiral variable pitch guide grooves 32 are mirror-set, so that when the adjusting rod 31 rotates, it cooperates with the corresponding guide column 26, so that the collecting barrels 2 on both sides move away from or close to the middle collecting barrel 2 at the same time, thereby achieving the effect of adjusting the position of each collecting barrel 2.

[0032] The top of the adjusting rod 31 passes through the corresponding ear plate 15 and is fixedly connected with a turntable 33. The turntable 33 is arranged to facilitate the operation of the adjusting rod 31 for rotation. A spring groove is provided on the top of the fixing seat 1, and a movable rod 17 slidably connected to the spring groove is fixedly connected with the compression spring 16. The top of the movable rod 17 is fixedly connected with a limiting U-shaped plate 18. The limiting U-shaped plate 18 is arranged to fit with the bottom of the turntable 33 under the action of the compression elastic force of the compression spring 16 and limit its rotation, so as to avoid the problem of inaccurate sampling caused by the position change of the collecting tube 2 during the sampling process.

[0033] A plurality of limiting holes 34 are arranged at the bottom of the turntable 33 in a circular array relative to the adjusting rod 31, and a limiting pin 19 matching the limiting hole 34 is fixedly connected to the limiting U-shaped plate 18. When the limiting U-shaped plate 18 is in contact with the bottom of the turntable 33, the limiting pin 19 on the limiting U-shaped plate 18 is plugged into the corresponding limiting hole 34, thereby achieving the effect of limiting the rotation of the turntable 33.

[0034] The free end of the water suction pipe 24 is fixedly connected with a conical water inlet cover 27. The conical water inlet cover 27 can increase the flow rate of the water flow in the water suction pipe 24. The conical water inlet cover 27 is fixedly connected with a filter screen 28. The filter screen 28 can filter out large particles of impurities contained inside when extracting groundwater samples.

[0035] A mounting block is fixedly connected to the inner wall of the suction pipe 24, and a rotating rod 29 is rotatably connected to the mounting block. One end of the rotating rod 29 is fixedly connected to an impeller 210, and the other end of the rotating rod 29 penetrates the filter screen 28 and is fixedly connected to a brush plate 211. When groundwater passes through the conical water inlet cover 27 and enters the collecting tube 2 through the suction pipe 24, the flowing water pushes the impeller 210 to rotate. The impeller 210 drives the brush plate 211 to rotate on the surface of the filter screen 28 through the rotating rod 29, which can clean the impurities filtered on the filter screen 28, thereby avoiding the problem of clogging of the filter screen 28 and reducing the sampling efficiency.

[0036] The working process and principle of the utility model are as follows:

[0037] During use, the utility model places the device inside the groundwater through the lifting device, and uses the external negative pressure device to cooperate with the suction pipe 14 and each connecting hose 23 to evacuate the air on one side of the piston block 22 in the multiple collecting tubes 2. While exhausting the air in the collecting tube 2, the piston block 22 is driven to move, and the piston block 22 moves toward the side of the connecting hose 23, so that the air pressure inside the collecting tube 2 on the other side of the piston block 22 is reduced, and cooperates with the conical water inlet cover 27 and the suction pipe 24 to quickly extract the groundwater sample in layers;

[0038] The groundwater sample enters the collecting tube 2 through the filtration of the filter 28, and cooperates with the conical water inlet cover 27 to increase the flow speed of the water flow in the water suction pipe 24, thereby driving the impeller 210 to rotate. The impeller 210 drives the brush plate 211 to rotate on the surface of the filter 28 through the rotating rod 29, and cleans the impurities filtered on the filter 28 to avoid clogging of the filter 28 and reduce the sampling efficiency;

[0039] After the groundwater sample is extracted, the device is taken out of the groundwater, and air is inflated into the collection tube 2 through the suction pipe 14 and the connecting hose 23 to push the piston block 22 to move in the reverse direction, so that the collected sample water can be quickly discharged;

[0040] When adjusting the spacing between multiple collecting tubes 2, the limiting U-shaped plate 18 is pressed to compress the compression spring 16, so that the limiting pin 19 on the limiting U-shaped plate 18 is separated from the corresponding limiting hole 34, and the turntable 33 is rotated to drive the adjusting rod 31 to rotate. The collecting tube 2 located at the position of the annular variable pitch guide groove 32 on the adjusting rod 31 will not change its position, and the collecting tube 2 located at the position of the spiral variable pitch guide groove 32 on the adjusting rod 31 moves away from or close to the middle collecting tube 2, thereby realizing the adjustment of the position of each collecting tube 2, and then realizing the groundwater sample sampling operation at different heights according to actual detection needs.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A groundwater detection sampling and collecting device, comprising a fixing seat (1), characterized in that: Mounting seat 1 (11) and mounting seat 2 (12) are welded to both sides of the bottom of the fixing seat (1), and a plurality of collecting cylinders (2) are equidistantly installed between the mounting seat 1 (11) and the mounting seat 2 (12). The interiors of the mounting seat 1 (11) and the mounting seat 2 (12) are fixedly connected with sliding rods (13). The collecting cylinders (2) are fixedly connected with sliding blocks (21) slidably connected with the corresponding sliding rods (13). The mounting seat 2 (12) is provided with an adjustment component (3). The interiors of the respective collecting cylinders (2) are slidably connected with piston blocks (22). The mounting seat 1 (11) is fixedly connected with an air suction pipe (14). A connecting hose (23) is fixedly connected between one side of the collecting cylinder (2) and the air suction pipe (14), and a water suction pipe (24) is fixedly connected to the middle of the side of the collecting cylinder (2) away from the connecting hose (23).

2. A groundwater detection sampling and collection device according to claim 1, characterized in that: The adjustment assembly (3) comprises an adjustment rod (31) and a pitch-changing guide groove (32); an ear plate (15) is symmetrically fixedly connected to a side of the second mounting seat (12) away from the collecting barrel (2); the adjustment rod (31) is rotatably connected between the ear plates (15); a through hole (25) slidably connected to the adjustment rod (31) is provided on a slider (21) on a side of the collecting barrel (2) close to the second mounting seat (12); a guide column (26) is fixedly connected to an inner wall of one side of the through hole (25); and a pitch-changing guide groove (32) adapted to the corresponding guide column (26) is provided on an outer wall of the adjustment rod (31).

3. A groundwater detection sampling and collection device according to claim 2, characterized in that: The top end of the adjusting rod (31) passes through the corresponding ear plate (15) and is fixedly connected to a rotating disk (33); the top of the fixing seat (1) is provided with a spring groove, and a movable rod (17) slidably connected thereto is fixedly connected in the spring groove via a compression spring (16); the top of the movable rod (17) is fixedly connected to a limiting U-shaped plate (18).

4. A groundwater detection sampling and collection device according to claim 3, characterized in that: The bottom of the rotating disk (33) is provided with a plurality of limiting holes (34) distributed in a ring array relative to the adjusting rod (31), and the limiting U-shaped plate (18) is fixedly connected with a limiting pin (19) matched with the limiting holes (34).

5. A groundwater detection sampling and collection device according to claim 1, characterized in that: The free end of the water suction pipe (24) is fixedly connected to a conical water inlet cover (27), and a filter screen (28) is fixedly connected inside the conical water inlet cover (27).

6. A groundwater detection sampling and collection device according to claim 5, characterized in that: A mounting block is fixedly connected to the inner wall of the water suction pipe (24), and a rotating rod (29) is rotatably connected to the mounting block. One end of the rotating rod (29) is fixedly connected to an impeller (210), and the other end of the rotating rod (29) passes through the filter screen (28) and is fixedly connected to a brush plate (211).

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