Hydrogeological water sampling probe

Abstract

This utility model relates to the field of hydrogeological and environmental technology, and discloses a hydrogeological and environmental geological water sampling probe, comprising: a shovel body, a threaded cylinder fixedly connected to the top of the shovel body, a vertical cylinder threadedly connected to the inner wall of the threaded cylinder, a flexible tube inside the vertical cylinder, a housing connected to the top of the flexible tube, and a first quick-connect fitting installed at the bottom of the flexible tube. This hydrogeological and environmental geological water sampling probe, through the coordinated operation of its components, closes the control switch on top of the housing, the battery inside the housing powers the pump body, and the pump body begins operation, creating negative pressure inside the flexible tube, short tube, and convex cylinder. Water can then be drawn out through the filter holes, convex cylinder, short tube, and flexible tube. Because the suction end is far from the sedimented soil layer in the water during water sampling, it is not easy to draw up the sedimented soil particles, thereby significantly reducing the content of soil and other impurities in the water sample and reducing the probability of impurities clogging the filter holes, facilitating high-quality and effective water sampling.

Description

Technical Field

[0001] This utility model relates to the field of hydrogeological and environmental technology, specifically to a hydrogeological and environmental geological water sampling probe. Background Technology

[0002] In the field of hydrogeology and environmental geology, accurately obtaining representative water samples is crucial for assessing groundwater resource quality, studying geological environmental changes, and solving related engineering geological problems. As a key tool for obtaining water samples, the performance of water sampling probes directly affects the sampling quality and the reliability of subsequent analysis results. However, existing hydrogeological water sampling technologies and related equipment have certain problems in practical applications that need to be solved.

[0003] Shallow groundwater, as a core research object in engineering geology and environmental geology exploration, can be systematically investigated by standardized sampling combined with water level observation and stratigraphic lithology analysis. This allows for the identification of its recharge sources, runoff and discharge conditions, and precise acquisition of key parameters such as aquifer water-bearing capacity and permeability coefficient. Sampling and testing in stages according to the dry and wet seasons can compensate for deficiencies in hydrogeological mapping, improve basic data on stratigraphic and structural water-bearing capacity, and provide data support for subsequent hydrogeological and environmental exploration and evaluation. Simultaneously, by testing indicators such as pH value, dissolved oxygen, heavy metals, nitrates, and microorganisms, it is possible to scientifically evaluate whether the water quality meets the requirements for drinking, irrigation, and industrial water use, providing a reliable basis for the rational development and safe management of groundwater.

[0004] Currently, the common method for shallow water sampling involves excavating the soil, waiting for groundwater to seep out and form a waterlogged area, and then taking water samples. During this process, existing water intake ports cannot float on the water surface to draw water. When the water becomes still, stratification occurs, with the surface water being relatively cleaner. Since the intake port cannot remain on the surface, it must be inserted into the water body to collect samples. In this insertion method, soil particles in the water gradually settle under gravity. When the intake port is inserted into the water, these settled soil particles are easily drawn up, resulting in a large amount of impurities mixed in with the water sample. This leads to easy clogging of the filter pores, reducing sampling efficiency and hindering high-quality and effective water collection.

[0005] During water sampling operations, although existing sampling equipment is equipped with certain filtration devices, it is inevitable that some tiny impurities will still be drawn in. These tiny impurities are small enough to easily pass through the preliminary filtration structure and enter the pump body. These tiny impurities inside the pump body will gradually accumulate as the pump operates, affecting the pump's service life over time. This not only increases the equipment's maintenance costs but may also lead to sampling interruptions due to pump malfunctions. Utility Model Content

[0006] The purpose of this invention is to provide a water sampling probe for hydrogeological and environmental geological conditions, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water sampling probe for hydrogeological and environmental conditions, comprising: a shovel body, a threaded cylinder fixedly connected to the top of the shovel body, a vertical cylinder threadedly connected to the inner wall of the threaded cylinder, a flexible tube provided inside the vertical cylinder, a housing connected to the top of the flexible tube, a first quick-connect fitting installed at the bottom of the flexible tube, a short tube fixedly connected to the bottom of the first quick-connect fitting, a horizontal plate fixedly sleeved on the top of the outer wall of the short tube, groove blocks fixedly connected to the four corners of the lower surface of the horizontal plate, a float ball fixedly connected to the bottom of the groove blocks, a protruding cylinder provided on the outer side of the short tube, the top of the protruding cylinder fixedly connected to the horizontal plate, and multiple filter holes opened on the outer wall of the protruding cylinder.

[0008] Preferably, the short tube is equipped with an impeller that rotates inside. The bottom end of the impeller is fixedly connected to a rotating rod. The rotating rod is rotatably connected to the convex cylinder through a sealed bearing. The bottom end of the rotating rod is fixedly connected to a disc. A pair of curved rods are fixedly connected to the outer wall of the disc. Brush bristles are fixedly connected to the outer wall of the curved rods. The brush bristles are in contact with the outer wall of the convex cylinder.

[0009] Preferably, the top end of the hose is equipped with a second quick-connect fitting with an internal one-way valve. The top end of the second quick-connect fitting is fixedly connected to a transparent cylinder. The top end of the transparent cylinder is threadedly connected to a cylinder cap. The inner wall of the cylinder cap is fixedly connected to an inner conical tube. The top end of the inner conical tube is fixedly connected to the inlet end of the pump body inside the casing.

[0010] Preferably, a collar is fitted on the outer side of the transparent cylinder, a pair of uprights are inserted into the upper surface of the collar, the collar and the uprights are slidably connected, the bottom end of the uprights is fixedly connected to the vertical cylinder, a top ring is fixedly connected to the top end of the uprights, a pair of bolts are threaded to the outer wall of the collar, and a rubber block is fixedly connected to the bolts near the end of the transparent cylinder, the rubber block abutting against the transparent cylinder.

[0011] Preferably, a sliding rod is vertically provided inside the transparent tube, and a support rod is fixedly connected to the bottom end of the sliding rod. The end of the support rod is fixedly connected to the inner wall of the transparent tube. A ball is fitted under the outer wall of the sliding rod, and the inside of the ball is in clearance fit with the outer wall of the sliding rod. Both the ball and the sliding rod are located directly below the inner conical tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This hydrogeological water sampling probe has the following advantages over traditional technology:

[0013] Through the coordinated operation of various components, the operator holds a vertical cylinder and uses a shovel to excavate the soil in the designated area. After water seeps out, the operator moves the machine downwards. At this time, the bottom end of the hose extends, allowing the convex cylinder to penetrate into the water. The convex cylinder is buoyed by the horizontal plate and the float, allowing it to enter the water but not to continue to contact the soil. Then, the control switch on the top of the machine is closed, and the battery inside the machine powers the pump. The pump starts working, creating negative pressure inside the hose, short pipe, and convex cylinder. Water can then be sucked out through the filter holes, convex cylinder, short pipe, and hose. Because the suction end is far from the soil layer in the water during water collection, it is not easy to suck up the sedimented soil particles, thus significantly reducing the content of soil and other impurities in the water sample and reducing the chance of impurities clogging the filter surface, facilitating high-quality and effective water collection.

[0014] Through the coordinated operation of various components, when water flows upward and is drawn in inside the short pipe, the flowing water will exert an impact force on the impeller, causing the impeller, rotating rod, and disc to rotate. During this process, a pair of curved rods revolve around the disc, and the bristles on the outer wall of the curved rods will continuously scrape the outer wall of the convex cylinder, cleaning the impurities that are blocked on the outside of the filter holes, further reducing the chance of filter hole blockage.

[0015] Through the coordinated operation of various components, the water discharged from the top of the hose first enters the transparent cylinder for storage. By observing the water level inside the transparent cylinder, the operator can promptly cut off the power to the pump inside the machine to prevent water from entering the inner conical tube and avoid impurities in the water from coming into contact with the pump. This helps the pump maintain its original service life, which not only reduces the maintenance cost of the equipment but also reduces the possibility of sampling work being interrupted due to pump failure.

[0016] Through the coordinated operation of various components, if the operator fails to promptly shut off the control switch to de-energize the pump inside the casing, the ball inside the transparent cylinder will rise along with the water level as the water level increases. It will then slide upwards on the sliding rod, ultimately sealing the bottom of the inner conical tube. This prevents larger impurities in the water from entering the pump, providing the operator with ample time to de-energize the pump and improving operational tolerance. Once the transparent cylinder is full and the pump is de-energized, the operator can disconnect the hose from the second quick-connect fitting, turn the bolt counterclockwise to separate it from the transparent cylinder, and then remove the cylinder. Finally, turn the cap counterclockwise to open the top of the transparent cylinder, allowing the extracted water to be discharged, completing the sampling operation. The operation is simple and convenient. Attached Figure Description

[0017] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0021] In the diagram: 1. Shovel body, 2. Threaded cylinder, 3. Vertical cylinder, 4. Flexible hose, 5. Chassis, 6. First quick-connect fitting, 7. Short pipe, 8. Horizontal plate, 9. Groove block, 10. Float ball, 11. Convex cylinder, 12. Filter hole, 13. Impeller, 14. Rotating rod, 15. Disc, 16. Curved rod, 17. Brush bristles, 18. Vertical rod, 19. Top ring, 20. Collar ring, 21. Transparent cylinder, 22. Bolt, 23. Cylinder cover, 24. Inner conical tube, 25. Sliding rod, 26. Collar ball, 27. Support rod, 28. Second quick-connect fitting. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 The technical solution provided by this utility model is as follows: a water sampling probe for hydrogeological and environmental geological processes, comprising: a shovel body 1, a threaded cylinder 2 fixedly connected to the top of the shovel body 1, a vertical cylinder 3 threadedly connected to the inner wall of the threaded cylinder 2, a flexible hose 4 provided inside the vertical cylinder 3, a housing 5 connected to the top of the flexible hose 4, a first quick-connect fitting 6 installed at the bottom of the flexible hose 4, a short pipe 7 fixedly connected to the bottom of the first quick-connect fitting 6, a horizontal plate 8 fixedly sleeved on the top of the outer wall of the short pipe 7, groove blocks 9 fixedly connected to the four corners of the lower surface of the horizontal plate 8, a float ball 10 fixedly connected to the bottom of the groove block 9, a protruding cylinder 11 provided on the outer side of the short pipe 7, the top of the protruding cylinder 11 fixedly connected to the horizontal plate 8, and multiple filter holes 12 opened on the outer wall of the protruding cylinder 11.

[0024] In the specific implementation process, it is worth noting that the shovel body 1, as the component that directly contacts the soil for digging, has a shovel-like shape with a sharp front end and a wide rear end, which facilitates easier cutting into the soil during digging and allows for the excavation of a larger area of ​​soil. The threaded cylinder 2 provides a stable connection base for the vertical cylinder 3, and the threads on its inner wall match the threads on the outer wall of the vertical cylinder 3. The threaded connection allows for easy installation and disassembly of the vertical cylinder 3. The vertical cylinder 3 not only provides space for the hose 4 but also serves as the part that the operator can hold. Its length and thickness are convenient for the operator to hold and operate for extended periods. The hose 4 is a PU hose, and the first quick-connect fitting 6 is a quick-connect fitting. The quick-connect fitting connects to the PU hose. The tensile strength of the hose connection is usually evaluated by the industry using pull-out force (the maximum tensile force before axial breakage) as the core indicator. The outer diameter of the PU hose is 4mm-16mm, and the standard minimum pull-out force is 70N-400N. During the excavation stage, the length of the hose protruding from the threaded cylinder 2 is very short or even non-exposed, so there is no need to worry about the swing of the horizontal plate 8. Minor movement will not affect the normal use of the shovel body 1. The chassis 5 is the main control unit of the entire equipment, which integrates important components such as the battery and pump body. The air outlet pipe of the pump body is connected to the outside through the chassis 5. The first quick-connect connector 6 facilitates the quick connection and separation of the hose 4 and the short pipe 7, improving the convenience of equipment assembly. The short pipe 7 provides installation space for the impeller 13. The horizontal plate 8 connects the short pipe 7 and the float 10. The groove block 9 firmly fixes the float 10 under the horizontal plate 8 to ensure that the float 10 can function properly. The float 10 is made of a lightweight material with good buoyancy, which can generate enough buoyancy in the water so that the convex cylinder 11 can be immersed in the water but will not come into deep contact with the soil layer below. The convex cylinder 11 serves as the main channel for water to enter. The filter holes 12 on its outer wall are reasonably distributed in size, which can not only ensure that the water can enter smoothly, but also effectively block larger soil impurities.

[0025] Furthermore, the short tube 7 has an impeller 13 inside that rotates. The bottom end of the impeller 13 is fixedly connected to a rotating rod 14. The rotating rod 14 is rotatably connected to the convex cylinder 11 through a sealed bearing. The bottom end of the rotating rod 14 is fixedly connected to a disc 15. A pair of curved rods 16 are fixedly connected to the outer wall of the disc 15. Brush bristles 17 are fixedly connected to the outer wall of the curved rods 16. The brush bristles 17 are in contact with the outer wall of the convex cylinder 11.

[0026] In the specific implementation process, it is worth noting that there is a certain distance between the impeller 13 and the inner wall of the short tube 7. The short tube 7 will not obstruct the normal rotation of the impeller 13. The impeller 13 is composed of multiple blades, and its shape and angle can make full use of the impact force generated when the water flows, thereby efficiently driving the rotating rod 14 to rotate. The curved rod 16 is curved. This design allows the bristles 17 to cover a larger area during rotation, improving the efficiency of cleaning impurities on the outside of the filter hole 12.

[0027] Furthermore, a second quick-connect fitting 28 with a one-way valve inside is installed at the top of the hose 4. A transparent cylinder 21 is fixedly connected to the top of the second quick-connect fitting 28. A cylinder cover 23 is threadedly connected to the top of the transparent cylinder 21. An inner conical tube 24 is fixedly connected to the inner wall of the cylinder cover 23. The top of the inner conical tube 24 is fixedly connected to the inlet end of the pump body inside the casing 5.

[0028] In the specific implementation process, it is worth noting that the one-way valve inside the second quick connector 28 can ensure that the water can only flow from the hose 4 to the transparent tube 21 and will not backflow. The transparent tube 21 is made of transparent material, which makes it convenient for operators to observe the changes in the internal water level. The inner conical tube 24 is easy to fit with the ball 26.

[0029] Furthermore, a collar 20 is fitted on the outside of the transparent cylinder 21. A pair of uprights 18 are inserted into the upper surface of the collar 20. The collar 20 and the uprights 18 are slidably connected. The bottom end of the uprights 18 is fixedly connected to the vertical cylinder 3. A top ring 19 is fixedly connected to the top end of the uprights 18. A pair of bolts 22 are threadedly connected to the outer wall of the collar 20. A rubber block is fixed to the end of the bolts 22 near the transparent cylinder 21. The rubber block is pressed tightly against the transparent cylinder 21.

[0030] In the specific implementation process, it is worth noting that the collar 20 can slide up and down on the upright 18. There is a certain frictional resistance between them, and they will not slide without external force. By applying force to adjust the position of the collar 20, the height of the transparent cylinder 21 can be changed. The upright 18 provides a sliding track for the collar 20. The bolt 22 is threadedly connected to the collar 20. When the bolt 22 is tightened, the rubber block will be tightly pressed against the transparent cylinder 21, thereby firmly fixing the transparent cylinder 21 to the collar 20, ensuring the stability of the transparent cylinder 21 during the sampling process. The rubber block has good elasticity and friction, which can ensure the fixing effect while avoiding damage to the transparent cylinder 21.

[0031] Furthermore, a sliding rod 25 is vertically provided inside the transparent cylinder 21. A support rod 27 is fixedly connected to the bottom end of the sliding rod 25. The end of the support rod 27 is fixedly connected to the inner wall of the transparent cylinder 21. A ball 26 is fitted under the outer wall of the sliding rod 25. The inside of the ball 26 is in clearance fit with the outer wall of the sliding rod 25. Both the ball 26 and the sliding rod 25 are located directly below the inner conical tube 24.

[0032] In the specific implementation process, it is worth noting that the sliding rod 25 provides a sliding track for the ball 26, which is vertically set inside the transparent cylinder 21. This ensures that the ball 26 can slide up and down with the change of water level. The gap fit between the inside of the ball 26 and the outer wall of the sliding rod 25 allows the ball 26 to slide freely on the sliding rod 25 without producing excessive shaking. When the water level rises to a certain level, the ball 26 will seal the bottom of the inner wall of the inner conical tube 24, effectively preventing water from entering the pump body. This provides the operator with sufficient time to disconnect the power to the pump body inside the casing 5, thus protecting the pump body.

[0033] Working principle:

[0034] Soil excavation and water intake commencement:

[0035] The operator holds the vertical cylinder 3 and manipulates the shovel 1 to excavate the soil in the designated area. After the soil seeps out groundwater to form a water body, the operator moves the machine box 5 downwards, and the bottom end of the hose 4 extends accordingly, causing the convex cylinder 11 to penetrate into the water body. At this time, the horizontal plate 8 and the float ball 10 together generate buoyancy, which acts on the convex cylinder 11, allowing it to be immersed in the water body without continuing to penetrate into the sedimented soil layer below. Subsequently, the control switch on the top of the machine box 5 is closed, and the battery inside the machine box 5 starts to power the pump body, and the pump body starts to operate. A negative pressure environment is formed inside the hose 4, short pipe 7 and convex cylinder 11. Under the action of negative pressure, the water body is sucked out sequentially through the filter hole 12, convex cylinder 11, short pipe 7 and hose 4. Since the water intake end is far away from the sedimented soil layer in the water body, the sedimented soil particles are effectively avoided from being sucked up, which greatly reduces the content of soil and other impurities in the water sample, and at the same time reduces the probability of impurities clogging the surface of the filter hole 12.

[0036] Impurity removal and pump body protection:

[0037] During the water intake operation, when the water flows upward inside the short pipe 7 and is drawn in, the flowing water exerts an impact force on the impeller 13, driving the impeller 13, the rotating rod 14, and the disc 15 to rotate. During this rotation, a pair of curved rods 16 revolve around the disc 15. The bristles 17 on the outer wall of the curved rods 16 continuously scrape against the outer wall of the convex cylinder 11, promptly cleaning the impurities clogging the outside of the filter holes 12, further reducing the probability of clogging the filter holes 12, and ensuring the smooth progress of the water intake process. At the same time, the water discharged from the top of the hose 4 first enters the transparent cylinder 21 for storage. By observing the water level changes inside the transparent cylinder 21, the operator can promptly cut off the power to the pump inside the casing 5 to prevent water from entering the inner conical tube 24 and avoid impurities in the water from contacting the inside of the pump, effectively protecting the pump and allowing it to maintain its original service life. This not only reduces the maintenance cost of the equipment but also reduces the possibility of sampling work being interrupted due to pump failure.

[0038] Improve fault tolerance and sampling completion:

[0039] If the operator fails to turn off the control switch to disconnect the power to the pump inside the casing 5 in time, when the water level rises inside the transparent cylinder 21, the ball 26 inside the transparent cylinder 21 will rise with the water level and slide upward on the slide rod 25. When the water level rises to a certain level, the ball 26 will block the bottom of the inner wall of the inner conical tube 24, effectively preventing larger impurities in the water from entering the pump body. This provides the operator with sufficient time to disconnect the power to the pump inside the casing 5. After the water inside the transparent cylinder 21 is sufficient and the power to the pump inside the casing 5 is disconnected, the operator first separates the hose 4 from the second quick connector 28, then turns the bolt 22 counterclockwise to separate it from the transparent cylinder 21, remove the transparent cylinder 21, and then turns the cylinder cover 23 counterclockwise to open the top of the transparent cylinder 21, allowing the extracted water to be discharged, thus completing the entire sampling operation. The entire operation process is simple and convenient. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Hydrogeological and environmental water sampling probe, including: The shovel body (1) is characterized in that: a threaded cylinder (2) is fixedly connected to the top of the shovel body (1), a vertical cylinder (3) is threadedly connected to the inner wall of the threaded cylinder (2), a flexible tube (4) is provided inside the vertical cylinder (3), a machine box (5) is connected to the top of the flexible tube (4), a first quick connector (6) is installed at the bottom of the flexible tube (4), a short tube (7) is fixedly connected to the bottom of the first quick connector (6), a horizontal plate (8) is fixedly sleeved on the top of the outer wall of the short tube (7), a groove block (9) is fixedly connected to the four corners of the lower surface of the horizontal plate (8), a float ball (10) is fixedly connected to the bottom of the groove block (9), a protruding cylinder (11) is provided on the outer side of the short tube (7), the top of the protruding cylinder (11) is fixedly connected to the horizontal plate (8), and a plurality of filter holes (12) are opened on the outer wall of the protruding cylinder (11).

2. The hydrogeological water sampling probe according to claim 1, characterized in that: The short tube (7) is equipped with an impeller (13) that rotates inside. A rotating rod (14) is fixed to the bottom end of the impeller (13). The rotating rod (14) is rotatably connected to the convex cylinder (11) through a sealed bearing. A disc (15) is fixed to the bottom end of the rotating rod (14). A pair of curved rods (16) are fixed to the outer wall of the disc (15). Brush bristles (17) are fixed to the outer wall of the curved rods (16). The brush bristles (17) are in contact with the outer wall of the convex cylinder (11).

3. The hydrogeological water sampling probe according to claim 1, characterized in that: The top end of the hose (4) is equipped with a second quick connector (28) with a one-way valve inside. The top end of the second quick connector (28) is fixedly connected to a transparent tube (21). The top end of the transparent tube (21) is threadedly connected to a tube cap (23). The inner wall of the tube cap (23) is fixedly connected to an inner conical tube (24). The top end of the inner conical tube (24) is fixedly connected to the inlet end of the pump body inside the casing (5).

4. The hydrogeological water sampling probe according to claim 3, characterized in that: A collar (20) is fitted on the outside of the transparent cylinder (21). A pair of uprights (18) are inserted into the upper surface of the collar (20). The collar (20) and the uprights (18) are slidably connected. The bottom end of the uprights (18) is fixedly connected to the vertical cylinder (3). A top ring (19) is fixedly connected to the top end of the uprights (18). A pair of bolts (22) are threadedly connected to the outer wall of the collar (20). A rubber block is fixed to the end of the bolts (22) near the transparent cylinder (21). The rubber block is pressed against the transparent cylinder (21).

5. The hydrogeological water sampling probe according to claim 3, characterized in that: The transparent tube (21) is vertically provided with a sliding rod (25) inside. A support rod (27) is fixedly connected to the bottom end of the sliding rod (25). The end of the support rod (27) is fixedly connected to the inner wall of the transparent tube (21). A ball (26) is fitted under the outer wall of the sliding rod (25). The inside of the ball (26) is in clearance fit with the outer wall of the sliding rod (25). The ball (26) and the sliding rod (25) are both located directly below the inner conical tube (24).

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