Underground water sampling device

Abstract

The utility model provides an underground water sampling device and relates to the technical field of underground water sampling. The sampling device comprises a take-up and pay-off structure; a floating member; the collecting assembly comprises an insulation type collecting cylinder and an electric valve, the insulation type collecting cylinder is of an annular structure with openings in the two ends, a first port of the insulation type collecting cylinder is connected with the floating part and is in sealing fit with the floating part, and the electric valve is arranged at a second port of the insulation type collecting cylinder; wherein the insulation type collecting barrel is axially provided with a water storage cavity, and the water storage cavity is communicated with an inner cavity of the insulation type collecting barrel; the power supply structure comprises a power supply battery, a first conductive column and a second conductive column, the first conductive column and the second conductive column are arranged in the water storage cavity, a positive electrode interface of the electric valve is electrically connected to a positive electrode of the power supply battery, a negative electrode interface of the electric valve is electrically connected to the first conductive column, and the second conductive column is electrically connected to a negative electrode of the power supply battery. Opening and closing of the collecting barrel are controlled through a simple power supply structure and an electric valve, and the structure of sampling equipment is simplified.

Description

Technical Field

[0001] This utility model relates to the field of groundwater sampling technology, and more specifically, to a groundwater sampling device. Background Technology

[0002] Hydrogeology is a branch of geology that refers to the various changes and movements of groundwater in nature. It mainly studies the distribution and formation patterns of groundwater, the physical properties and chemical composition of groundwater, groundwater resources and their rational utilization, and the adverse effects of groundwater on engineering construction and mining and their prevention and control. In hydrogeological exploration work, it is necessary to sample groundwater in different areas in order to observe the water quality in each area.

[0003] A groundwater sampler is a device used for groundwater sampling. It mainly consists of a sampling tube, a sampling pump, a filter, a controller, and a sample storage container. The sampling tube extends deep into the groundwater and serves as the channel for water samples to enter the sampler. The sampling pump provides the power for extracting the water sample, ensuring that the sample can be successfully collected from underground. The filter, installed at the front end of the sampling tube, effectively removes impurities and particulate matter from the water, ensuring the purity of the collected water sample. The controller is responsible for controlling the sampling process, including starting, stopping, and adjusting the flow rate of the sampling pump. The sample storage container is used to store the collected water sample for subsequent transportation and testing. However, in practical applications, it has been found that using a sampling pump for sampling has certain drawbacks. On the one hand, the sampling pump is not very stable during operation and is easily affected by various factors, leading to flow rate fluctuations during sampling, making it difficult to guarantee the consistency and representativeness of the collected water sample. On the other hand, the use of a sampling pump makes the overall structure of the groundwater sampler relatively complex, increasing the manufacturing cost and maintenance difficulty of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a groundwater sampling device, which aims to solve the technical problems mentioned in the background art.

[0005] The embodiments of this utility model are implemented as follows:

[0006] This application provides a groundwater sampling device, including: a line-laying and retrieval structure; a float and a rope disposed on the line-laying and retrieval structure; a collection assembly including an insulated collection cylinder and an electric valve, wherein the insulated collection cylinder is an annular structure with open ends, a first port of the insulated collection cylinder is connected to and sealed with the float, and the electric valve is disposed at the second port of the insulated collection cylinder for adjusting the opening or closing of the second port; wherein the insulated collection cylinder has an axially arranged water storage chamber, the water storage chamber being in communication with the inner cavity of the insulated collection cylinder; and a power supply structure including a power supply battery, a first conductive post, and a second conductive post, wherein the first conductive post and the second conductive post... All components are disposed in the aforementioned water storage chamber and spaced apart along the axial direction of the aforementioned insulated collecting cylinder. The positive terminal of the aforementioned electric valve is electrically connected to the positive terminal of the aforementioned power supply battery, the negative terminal of the aforementioned electric valve is electrically connected to the aforementioned first conductive post, and the aforementioned second conductive post is electrically connected to the aforementioned negative terminal of the aforementioned power supply battery. When the aforementioned first conductive post and the aforementioned second conductive post are in a disconnected state, the aforementioned electric valve is in an open state; when the aforementioned first conductive post and the aforementioned second conductive post are in a connected state, the aforementioned electric valve is in a closed state. The aforementioned first conductive post and the aforementioned float are disposed on the same side, and the connection between the aforementioned water storage chamber and the aforementioned insulated collecting cylinder is located between the aforementioned first conductive post and the aforementioned float.

[0007] Furthermore, based on the aforementioned scheme, a filter is provided at the second port of the aforementioned insulated collecting cylinder, and the filter is located outside the aforementioned electric valve.

[0008] Furthermore, based on the aforementioned scheme, the rope and the insulating collection tube are respectively installed at the top and bottom of the float, and the rope is provided with a first scale line marking line.

[0009] Furthermore, based on the aforementioned scheme, the float is made of a transparent material, the float has a measuring cavity, the top of the measuring cavity extends to the top of the float and is equipped with a drain valve, and the bottom of the measuring cavity extends to the bottom of the float and is equipped with a one-way valve, which allows external water to flow into the measuring cavity.

[0010] The aforementioned measuring cavity is equipped with a second scale marking line.

[0011] Furthermore, based on the aforementioned scheme, the collection cylinder is detachably mounted on the aforementioned float component via bolts.

[0012] Furthermore, based on the aforementioned scheme, the outer circumference of the collection tube is provided with a receiving groove, and the power supply battery is disposed in the receiving groove;

[0013] The opening of the aforementioned receiving slot is detachably equipped with a protective cover.

[0014] Furthermore, based on the aforementioned scheme, the above-mentioned cable winding structure includes a support, on which a roller is rotatably mounted, and the rope is wound around the roller.

[0015] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0016] When the sampling device of this application is put into use, the launching and retracting structure uses ropes to lower the collection component, connected to a float, into the groundwater. At this time, the collection component sinks into the water, while the float floats on the surface, thus positioning the collection component. During the sinking of the collection cylinder, the first and second conductive columns are disconnected, and the electric valve is open, allowing groundwater to enter the collection cylinder through the electric valve and flow into the storage chamber. When the water level in the storage chamber and the collection cylinder rises to a certain height (reaching the connection point between the collection cylinder and the storage chamber), due to the conductivity of the water in the storage chamber, the first and second conductive columns connect, forming a closed circuit in the power supply structure, and the electric valve closes. The collection component is then removed, completing the sampling operation. Compared to traditional sampling pumps, which often require complex mechanical components and power transmission systems, resulting in a cumbersome overall structure, this device simplifies the construction of the sampling equipment by using a simple power supply structure and an electric valve to control the opening and closing of the collection cylinder, thereby reducing manufacturing and maintenance costs. Traditional sampling pumps are significantly affected by groundwater conditions when dealing with different sampling environments, as impurities in the water can easily cause pump blockage and damage. However, this device uses an insulated collection cylinder combined with an electric valve, making it less susceptible to interference from impurities in the water and allowing it to operate stably even in environments with poor water quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 An isometric view of a groundwater sampling device according to an embodiment of this utility model. Figure 1 ;

[0019] Figure 2 An isometric view of a groundwater sampling device according to an embodiment of this utility model. Figure 2 ;

[0020] Figure 3 Cross-sectional views of the components collected for embodiments of this utility model;

[0021] Figure 4 for Figure 2 A magnified view of part A in the image;

[0022] Figure 5 for Figure 3 A magnified view of part B in the image;

[0023] Figure 6 for Figure 3 A magnified view of part C;

[0024] Figure 7 for Figure 3 A magnified view of part of D.

[0025] Icons: 1-Rope winding and unwinding structure, 101-Bracket, 102-Roller, 103-Rope, 2-Float, 3-Collection cylinder, 4-Protective cover, 5-Sealing plug, 6-Bolt, 7-Measuring chamber, 8-One-way valve, 9-Water drain valve, 10-First conductive post, 11-Second conductive post, 12-Water storage chamber, 13-Filter, 14-Power supply battery, 15-Electric valve. Detailed Implementation

[0026] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0027] Example

[0028] Please refer to Figures 1-7This application provides a groundwater sampling device, including: a line winding structure 1; a float 2, and a rope 103 disposed on the line winding structure 1; a collection assembly, including an insulated collection cylinder 3 and an electric valve 15, wherein the insulated collection cylinder 3 is an annular structure with open ends, the first port of the insulated collection cylinder 3 is connected to the float 2 and sealed, and the electric valve 15 is disposed on the second port of the insulated collection cylinder 3 for adjusting the opening or closing of the second port; wherein the insulated collection cylinder 3 has an axially arranged water storage chamber 12, and the water storage chamber 12 communicates with the inner cavity of the insulated collection cylinder 3; and a power supply structure, including a power supply battery 14, a first conductive post 10 and a second conductive post 11, wherein the first conductive post 10 and the second conductive post 11 are both provided with The components are placed in the water storage chamber 12 and spaced apart along the axial direction of the insulating collection cylinder 3. The positive terminal of the electric valve 15 is electrically connected to the positive terminal of the power supply battery 14, the negative terminal of the electric valve 15 is electrically connected to the first conductive post 10, and the second conductive post 11 is electrically connected to the negative terminal of the power supply battery 14. When the first conductive post 10 and the second conductive post 11 are disconnected, the electric valve 15 is in the open state. When the first conductive post 10 and the second conductive post 11 are connected, the electric valve 15 is in the closed state. The first conductive post 10 and the float 2 are arranged on the same side, and the connection between the water storage chamber 12 and the insulating collection cylinder 3 is located between the first conductive post 10 and the float 2.

[0029] When the sampling device of this application is put into use, the cable reel structure 1 lowers the collection component connected to the float 2 into the groundwater using the rope 103. At this time, the collection component sinks into the water, while the float 2 floats on the surface to position the collection component. During the sinking of the collection cylinder 3, the first conductive post 10 and the second conductive post 11 are disconnected, and the electric valve 15 is open, allowing groundwater to enter the collection cylinder 3 through the electric valve 15 and flow into the water storage chamber 12. When the water level in the water storage chamber 12 and the collection cylinder 3 rises to a certain height (reaching the connection point between the collection cylinder 3 and the water storage chamber 12), due to the conductivity of the water in the water storage chamber 12, the first conductive post 10 and the second conductive post 11 will connect, and the power supply structure will then form a closed loop, closing the electric valve 15. The collection component is then removed, completing the sampling operation. Compared with traditional sampling pumps, which often require complex mechanical components and power transmission systems, resulting in a complex overall structure. This device controls the opening and closing of the collection cylinder 3 through a simple power supply structure and an electric valve 15, simplifying the construction of the sampling equipment and thus reducing manufacturing and maintenance costs. Traditional sampling pumps are severely affected by groundwater conditions when dealing with different sampling environments; impurities in the water can easily cause pump blockage and damage. However, this device, with its insulated collection cylinder 3 combined with the electric valve 15, is less susceptible to interference from impurities in the water and can operate stably even in environments with poor water quality.

[0030] Specifically, the outer side of the collecting cylinder 3 is provided with an opening that connects to the water storage chamber 12 to facilitate drainage from the water storage chamber 12. The opening is detachably provided with a sealing plug 5.

[0031] In a preferred embodiment, the second port of the insulating collection cylinder 3 is provided with a filter 13, and the filter 13 is located outside the electric valve 15.

[0032] In the above embodiments, the filter 13 is designed to effectively intercept impurities and particulate matter in the water before the water sample enters the collection cylinder 3, preventing them from entering the inside of the collection cylinder 3 and avoiding these impurities from affecting the purity of the water sample, thereby ensuring the accuracy of subsequent test results. Secondly, it can protect the electric valve 15, reducing wear and blockage caused by impurities, lowering the probability of electric valve 15 failure, extending its service life, and ensuring that the electric valve 15 can stably control the opening and closing of the second port of the collection cylinder 3, making the sampling process more stable and reliable.

[0033] In a preferred embodiment, the rope 103 and the insulating collection tube 3 are respectively disposed at the top and bottom of the float 2, and the rope 103 is provided with a first scale line marking line.

[0034] In the above embodiment, when the sampling device is lowered, the float 2 floats on the water surface. Using it as a reference, the scale value corresponding to the first scale mark line on the rope 103 that is flush with the wellhead is the distance from the wellhead to the water surface, so the water level depth can be directly measured.

[0035] In a preferred embodiment, the float 2 is made of a transparent material. The float 2 is provided with a measuring cavity 7. The top of the measuring cavity 7 extends through to the top of the float 2 and is provided with a drain valve 9. The bottom of the measuring cavity 7 extends through to the bottom of the float 2 and is provided with a one-way valve 8, which allows external water to flow into the interior of the measuring cavity 7.

[0036] The measuring cavity 7 is equipped with a second scale marking line.

[0037] In the above embodiment, the float 2 will partially sink underwater. The amount of descent of the float 2 can be read by the water level entering the measuring chamber 7, thereby accurately measuring the distance from the wellhead to the water surface. The water in the measuring chamber 7 can be drained through the drain valve 9 for reuse.

[0038] In a preferred embodiment, the collection cylinder 3 is detachably mounted on the float 2 via bolts 6.

[0039] In the above embodiments, the detachable design allows for the replacement of the float component 2, and the bolt 6 disassembly method has the advantage of efficient installation or disassembly.

[0040] In a preferred embodiment, the outer circumference of the collection cylinder 3 is provided with a receiving groove, and the power supply battery 14 is disposed in the receiving groove.

[0041] The opening of the aforementioned receiving groove is detachably equipped with a protective cover plate 4.

[0042] In the above embodiment, placing the power supply battery 14 in the receiving slot of the collection tube 3 effectively utilizes the space of the collection tube 3, making the layout of the entire sampling device more compact and reasonable, reducing additional space occupation, and facilitating carrying and operation. Secondly, the detachable design of the protective cover 4 can protect the power supply battery 14 from the influence of the external environment, such as groundwater erosion and collisions, extending the battery's service life; it also facilitates quick removal of the protective cover 4 for replacement or repair when the battery power is insufficient or malfunctions, improving the efficiency and reliability of the sampling device.

[0043] In a preferred embodiment, the above-mentioned take-up and unwinding structure 1 includes a support 101, on which a roller 102 is rotatably mounted, and the rope 103 is wound around the roller 102.

[0044] In the above embodiment, the bracket 101 provides stable support for the entire rope deployment and take-up operation, ensuring that the device will not shake or shift during the deployment and take-up of the rope 103, thus ensuring the stability of the sampling device during lowering and retrieval. The rotatable roller 102 makes the deployment and take-up of the rope 103 smoother and more fluid, reducing frictional wear between the rope 103 and other components, and extending the service life of the rope 103. Operators can easily control the deployment and retraction of the rope 103 by rotating the roller 102, making operation simple and effectively improving the efficiency of sampling operations.

[0045] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0046] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A groundwater sampling device, characterized in that, include: Cable feeding and take-up structure (1); Float (2), which is attached to the rope (103) of the line take-up and release structure (1); The collection assembly includes an insulated collection cylinder (3) and an electric valve (15). The insulated collection cylinder (3) is an annular structure with openings at both ends. The first port of the insulated collection cylinder (3) is connected to the float (2) and sealed together. The electric valve (15) is located at the second port of the insulated collection cylinder (3) and is used to adjust the opening or closing of the second port. The insulating collecting cylinder (3) is axially provided with a water storage chamber (12), which is connected to the inner cavity of the insulating collecting cylinder (3); and The power supply structure includes a power supply battery (14), a first conductive post (10), and a second conductive post (11). The first conductive post (10) and the second conductive post (11) are both disposed in the water storage chamber (12) and are spaced apart along the axial direction of the insulating collection cylinder (3). The positive terminal of the electric valve (15) is electrically connected to the positive terminal of the power supply battery (14), and the negative terminal of the electric valve (15) is electrically connected to the first conductive post (10). The second conductive post (11) is electrically connected to the negative terminal of the power supply battery (14). When the first conductive post (10) and the second conductive post (11) are disconnected, the electric valve (15) is in the open state. When the first conductive post (10) and the second conductive post (11) are connected, the electric valve (15) is in the closed state. The first conductive post (10) and the float (2) are arranged on the same side, and the connection between the water storage cavity (12) and the insulating collection tube (3) is located between the first conductive post (10) and the float (2).

2. The groundwater sampling device according to claim 1, characterized in that, The second port of the insulated collecting cylinder (3) is provided with a filter (13), and the filter (13) is located outside the electric valve (15).

3. The groundwater sampling device according to claim 1, characterized in that, The rope (103) and the insulated collection tube (3) are respectively disposed at the top and bottom of the float (2), and the rope (103) is provided with a first scale line marking line.

4. A groundwater sampling device according to claim 3, characterized in that, The float (2) is made of transparent material. The float (2) is provided with a measuring cavity (7). The top of the measuring cavity (7) extends through to the top of the float (2) and is provided with a drain valve (9). The bottom of the measuring cavity (7) extends through to the bottom of the float (2) and is provided with a one-way valve (8), which allows external water to flow into the interior of the measuring cavity (7). The measuring cavity (7) is provided with a second scale marking line.

5. A groundwater sampling device according to claim 1, characterized in that, The collecting tube (3) is detachably mounted on the float (2) by bolts (6).

6. A groundwater sampling device according to claim 1, characterized in that, The outer ring surface of the collecting cylinder (3) is provided with a receiving groove, and the power supply battery (14) is disposed in the receiving groove; The opening of the receiving groove is detachably equipped with a protective cover plate (4).

7. A groundwater sampling device according to claim 1, characterized in that, The cable take-up and release structure (1) includes a support (101), on which a roller (102) is rotatably mounted, and the rope (103) is wound around the roller (102).

Images