Water quality sampling device for environmental monitoring

Abstract

The utility model relates to water quality sampling technical field discloses a water quality sampling device for environmental monitoring, include: sampling jar, the bottom plate of sampling jar is provided with center hole, the edge of center hole extends upwards and forms the water delivery pipe to sampling jar inside, the upper end of water delivery pipe is provided with water outlet hole, and the water pump that moves in water delivery pipe is connected, and the lower section of water pump can move and pass out the lower end of water delivery pipe, and selectively deliver water body to water delivery pipe. The utility model water quality sampling, the lower end of water pump passes out from the lower end of water delivery pipe, and the water body is delivered to water delivery pipe through water pump, thereby avoided the whole sampling jar and the contact condition of water body at sampling position, further reduced the contact surface between with sampling water body, reduced the water body simultaneously, can accurately obtain water sample, not only can improve the scientificity and accuracy of water quality monitoring, but also can better adapt to the monitoring demand of different water area, reduces the interference to ecological environment.

Description

Technical Field

[0001] This utility model relates to the field of water quality sampling technology, and in particular to a water quality sampling device for environmental monitoring. Background Technology

[0002] Water quality sampling devices play a crucial role in modern environmental science. With the acceleration of global industrialization and continuous urbanization, water pollution has become increasingly prominent, making water quality monitoring a key link in ensuring water environmental safety, maintaining ecological balance, and protecting human health. As a front-end tool for acquiring water quality data, the accuracy, convenience, and efficiency of water quality sampling devices directly affect the reliability of monitoring results.

[0003] Existing water sampling devices have made some technological progress. For example, the water sampling device mentioned in patent document CN220650139U, entitled "Water Sampling Device for Environmental Safety Assessment," effectively isolates foreign objects and sediment in the water by setting an isolation device at the lower end of the tank, including isolation plate A and isolation plate B, preventing these impurities from entering the tank and thus improving the sampling quality. However, this device still has some drawbacks in practical use. During sampling, the tank and bottom frame need to be completely submerged in the water, which causes significant disturbance to the water. This disturbance may agitate sediment in the water, thus affecting the representativeness and accuracy of the sampled water.

[0004] Therefore, it is particularly necessary to address the problem that existing water sampling devices cause significant disturbance to the water body during the sampling process. Utility Model Content

[0005] The present invention aims to provide a water quality sampling device for environmental monitoring to overcome the shortcomings mentioned above.

[0006] In order to achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An environmental monitoring water quality sampling device, comprising:

[0008] A sampling container, wherein the bottom plate of the sampling container has a central hole, the edge of the central hole extends upward toward the interior of the sampling container to form a water supply pipe, and the upper end of the water supply pipe has a water outlet; and

[0009] A pump is movably connected inside the water supply pipe. The lower section of the pump can extend movably out of the lower end of the water supply pipe and selectively deliver water into the water supply pipe.

[0010] Furthermore, the water pump includes:

[0011] The sleeve, the outer wall of which can be slidably connected to the inner wall of the water supply pipe, and can achieve circumferential rotation and axial sliding; and

[0012] The central shaft and helical blades are located inside the sleeve. The central shaft is coaxial with the sleeve, and the helical blades are fixedly connected between the central shaft and the sleeve.

[0013] Furthermore, a first water inlet hole is provided on the lower section of the side wall of the sleeve. The first water inlet hole has a strip-shaped structure. A lower cover is connected to or integrally formed at the bottom of the sleeve, and a second water inlet hole is provided on the lower cover.

[0014] Furthermore, the water outlet is provided at the upper end of the side wall of the water supply pipe, and an upper cover is detachably connected to the upper end of the water supply pipe, with the upper cover located above the water outlet.

[0015] Furthermore, it also includes:

[0016] The drive motor is fixedly connected to the top plate of the sampling tank; and

[0017] A drive shaft is rotatably connected inside the sampling container. The drive motor is connected to the drive shaft for driving the drive shaft to rotate. The central shaft is movably sleeved on the lower circumference of the drive shaft, and the two can slide relative to each other in the vertical direction and rotate synchronously.

[0018] Furthermore, the outer sidewall of the drive shaft is provided with a sliding protrusion, and the inner sidewall of the central shaft is provided with a sliding groove. The sliding protrusion and the sliding groove are slidably connected along the axial direction of the drive shaft.

[0019] Furthermore, a lower abutment plate is provided at the lower end of the drive shaft, and an upper abutment block is provided at the upper end of the central shaft. The lower abutment plate is located below the upper abutment block, and the two selectively abut against each other.

[0020] Furthermore, the output shaft of the drive motor passes through the top plate of the sampling tank in a vertical direction, and the upper end of the drive shaft passes through the upper cover and is connected to the output shaft of the drive motor via a coupling.

[0021] Furthermore, the inner wall of the central hole is detachably connected to a base via threads.

[0022] Furthermore, the top of the sampling container is provided with an opening, and a lid is hinged to the top plate of the sampling container, the lid being able to selectively open and close the opening;

[0023] A handle is installed on the upper part of the outer side wall of the sampling container;

[0024] A water outlet pipe is provided at the lower end of the outer wall of the sampling container, and the water outlet pipe is connected to the inside of the sampling container.

[0025] Compared with the prior art, this utility model has at least the following advantages:

[0026] In this invention, the lower end of a pump extends from the lower end of a water delivery pipe during water sampling. The pump then transports water into the pipe, thus avoiding contact between the entire sampling tank and the water at the sampling location. This reduces the contact area with the water being sampled, minimizing the amount of water and ensuring accurate water sample acquisition. This not only improves the scientific rigor and accuracy of water quality monitoring but also better adapts to the monitoring needs of different water areas, reducing interference with the ecological environment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the environmental monitoring water quality sampling device of this utility model;

[0029] Figure 2 This is a cross-sectional view of the water quality sampling device for environmental monitoring according to this utility model;

[0030] Figure 3 This is a schematic diagram of the lower end of the water pump of this utility model;

[0031] Figure 4 This utility model Figure 2 A magnified view of a portion of region A in the middle;

[0032] Figure 5 This utility model Figure 2 A magnified view of a portion of region B in the middle.

[0033] Reference numerals in the attached diagram: 1. Sampling tank; 2. Water supply pipe; 3. Water outlet; 4. Sleeve; 5. Central shaft; 6. Spiral blade; 7. First water inlet; 8. Lower cover; 9. Second water inlet; 10. Upper cover; 11. Drive motor; 12. Drive shaft; 13. Lower abutment plate; 14. Upper abutment block; 15. Coupling; 16. Base support; 17. Tank lid; 18. Handle; 19. Water outlet pipe. Detailed Implementation

[0034] 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.

[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Reference Figure 1-5 This invention provides a water quality sampling device for environmental monitoring, which can efficiently and accurately obtain water samples while minimizing water disturbance, and is suitable for water quality monitoring in various water areas. The specific structure includes a sampling tank 1, a water delivery pipe 2, and a pump. The sampling tank 1 is a cylindrical container with a central hole at the center of its bottom plate. The edge of the central hole extends into the sampling tank 1 to form the water delivery pipe 2. The water delivery pipe 2 is cylindrical in shape, with multiple evenly distributed circular outlet holes 3 at its upper end to ensure a smooth water flow. The pump is movably connected inside the water delivery pipe 2, and its lower section can extend out of the lower end of the water delivery pipe 2, selectively delivering water into the water delivery pipe 2.

[0037] The pump includes a sleeve 4, a central shaft 5, and helical blades 6. The sleeve 4 is a cylindrical structure, with its outer wall slidably connected to the inner wall of the water delivery pipe 2, allowing for circumferential rotation and axial sliding. The central shaft 5 is coaxially arranged with the sleeve 4 and located inside the sleeve 4. The helical blades 6 are fixedly connected between the central shaft 5 and the sleeve 4, and their rotation produces a pumping effect.

[0038] The lower section of the side wall of the sleeve 4 has multiple strip-shaped first water inlet holes 7, which ensure that water flows smoothly into the interior of the sleeve 4. A lower cover 8 is connected to the bottom of the sleeve 4, and the lower cover 8 has multiple circular second water inlet holes 9, further increasing the water inlet channel and improving pumping efficiency. The first water inlet holes 7 and the second water inlet holes 9 are used to filter impurities in the water.

[0039] An upper abutment block 14 is provided at the upper end of the central shaft 5, and a lower abutment plate 13 is provided at the lower end of the drive shaft 12. The lower abutment plate 13 is located below the upper abutment block 14, and the two selectively abut against each other. A sliding protrusion is provided on the outer wall of the drive shaft 12, and a sliding groove is provided inside the central shaft 5. The sliding protrusion and the sliding groove are slidably connected, thereby achieving the effect of synchronous rotation of the two and relative sliding in the vertical direction.

[0040] A water outlet 3 is provided at the upper end of the side wall of the water supply pipe 2. An upper cover 10 is detachably connected to the upper end of the water supply pipe 2, and the upper cover 10 is located above the water outlet 3. The upper cover 10 prevents water from impacting upwards, allowing water to flow out orderly through the water outlet 3. The detachable connection between the upper cover 10 and the upper end of the water supply pipe 2 allows for cleaning of the upper end of the water supply pipe 2 after removal of the upper cover 10. Optionally, the upper cover 10 and the upper end of the water supply pipe 2 can be connected by a thread, allowing for installation and removal by screwing.

[0041] In addition, a drive motor 11 is fixedly connected to the top plate of the sampling container 1, and the output shaft of the drive motor 11 passes through the top plate of the sampling container 1 vertically. The drive motor 11 can be connected to an external power supply and controller to control the opening and closing of the drive motor 11. A drive shaft 12 is rotatably connected inside the sampling container 1, and the drive motor 11 and the drive shaft 12 are connected by a coupling 15 to drive the drive shaft 12 to rotate. The upper end of the drive shaft 12 passes through the upper cover 10 and is connected to the output shaft of the drive motor 11.

[0042] Combined with reference Figure 5 The lower end of the drive shaft 12 is provided with a lower abutment plate 13, and the upper end of the central shaft 5 is provided with an upper abutment block 14. The lower abutment plate 13 is located below the upper abutment block 14, and the two selectively abut against each other. When the sleeve 4 moves downward to the lowest end, the upper end of the sleeve 4 is located inside the water supply pipe 2. At this time, the lower bottom plate abuts against the upper abutment block 14 to prevent the sleeve 4 from coming out of the water supply pipe 2.

[0043] The inner wall of the central hole is detachably connected to a base support 16. When the base support 16 is removed from the central hole, the sleeve 4 can move downward, so that the lower end of the sleeve 4 protrudes out of the water supply pipe 2, and a small-scale water level extraction process is carried out using a water pump, thereby reducing water disturbance. Conversely, when the sleeve 4 is embedded in the water supply pipe 2, the base support 16 is installed at the central hole, and the base support 16 can support and fix the sleeve 4.

[0044] The sampling container 1 has an opening at the top, and a lid 17 is hinged to the top plate. The lid 17 can be opened and closed flexibly, facilitating the opening and closing of the sampling container 1. A handle 18 is installed on the upper part of the outer wall of the sampling container 1, making it easy for operators to hold and move the sampling container 1. A water outlet pipe 19 is installed at the lower part of the outer wall of the sampling container 1, which is connected to the interior of the sampling container 1 and is used to discharge the collected water sample.

[0045] Working principle of this utility model:

[0046] Step 1: Install a rubber hose at point 19 of the water outlet pipe, and install a water-stop clamp on the rubber hose to close the rubber hose.

[0047] The second step is to remove the base 16 at the center hole, pass the lower end of the pump through the water pipe 2 and into the water body, and let the water enter the sleeve 4 through the first water inlet 7 and the second water inlet 9.

[0048] Third step: Start the drive motor 11. The drive motor 11 drives the drive shaft 12 to rotate through the coupling 15. The drive shaft 12 drives the central shaft 5 and the spiral blade 6 to rotate through the cooperation of the sliding protrusion and the sliding groove. During the rotation, the spiral blade 6 generates an upward pumping force, which draws water from the lower end of the sleeve 4 and lifts it upward, flowing into the sampling tank 1 through the water outlet 3 of the water supply pipe 2.

[0049] During the sampling process, the pumping action of the pump is relatively smooth, which can effectively reduce water disturbance and ensure the representativeness of the water sample.

[0050] Step 4: After collecting enough water sample from sampling tank 1, turn off drive motor 11, stop the pump, and slowly remove sampling tank 1 from the water.

[0051] Step 5: Reinstall the pump into the water supply pipe 2, install the base 16 at the center hole, open the water stop clamp, and discharge the collected water sample through the outlet pipe 19 for subsequent water quality analysis and testing.

[0052] This device uses a pump for water sample collection. The pump's spiral blades 6 rotate smoothly during pumping, preventing violent water flow impacts and effectively reducing water disturbance. The sampling container 1 of this invention has a simple structure, is easy to carry and operate, and is suitable for sampling in various water bodies.

[0053] This device can reduce water disturbance and acquire water samples efficiently and accurately, making the collected water samples more realistically reflect the water quality status of the water area. This provides more scientific and accurate data support for water quality monitoring, and helps to better assess and protect the aquatic ecological environment.

[0054] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A water quality sampling device for environmental monitoring, characterized in that, include: A sampling container (1) has a central hole on its bottom plate. The edge of the central hole extends upward toward the interior of the sampling container (1) to form a water supply pipe (2). An outlet hole (3) is provided at the upper end of the water supply pipe (2). A pump is movably connected inside the water supply pipe (2). The lower section of the pump can movably extend out of the lower end of the water supply pipe (2) and selectively deliver water into the water supply pipe (2).

2. The environmental monitoring water quality sampling device according to claim 1, characterized in that, The water pump includes: The sleeve (4) has an outer wall that can be slidably connected to the inner wall of the water pipe (2), and can achieve circumferential rotation and axial sliding; and The central shaft (5) and the spiral blade (6) are located inside the sleeve (4). The central shaft (5) is coaxially arranged with the sleeve (4), and the spiral blade (6) is fixedly connected between the central shaft (5) and the sleeve (4).

3. The environmental monitoring water quality sampling device according to claim 2, characterized in that, The lower section of the side wall of the sleeve (4) is provided with a first water inlet hole (7), which is a strip structure. The bottom of the sleeve (4) is connected to or integrally formed with a lower cover (8), and a second water inlet hole (9) is provided on the lower cover (8).

4. The environmental monitoring water quality sampling device according to claim 3, characterized in that, The water pipe (2) has an outlet hole (3) at the upper end of its side wall. The upper end of the water pipe (2) is detachably connected to an upper cover (10), which is located above the outlet hole (3).

5. The environmental monitoring water quality sampling device according to claim 4, characterized in that, Also includes: A drive motor (11) is fixedly connected to the top plate of the sampling tank (1); as well as A drive shaft (12) is rotatably connected inside the sampling container (1). The drive motor (11) is connected to the drive shaft (12) for driving the drive shaft (12) to rotate. The central shaft (5) is movably sleeved on the lower circumference of the drive shaft (12), and the two can slide relative to each other in the vertical direction and rotate synchronously.

6. The environmental monitoring water quality sampling device according to claim 5, characterized in that, The outer side wall of the drive shaft (12) is provided with a sliding protrusion, and the inner side wall of the central shaft (5) is provided with a sliding groove. The sliding protrusion and the sliding groove are slidably connected along the axial direction of the drive shaft (12).

7. The environmental monitoring water quality sampling device according to claim 6, characterized in that, The lower end of the drive shaft (12) is provided with a lower abutment plate (13), and the upper end of the central shaft (5) is provided with an upper abutment block (14). The lower abutment plate (13) is located below the upper abutment block (14), and the two abut against each other selectively.

8. The environmental monitoring water quality sampling device according to claim 7, characterized in that, The output shaft of the drive motor (11) passes through the top plate of the sampling tank (1) in a vertical direction, and the upper end of the drive shaft (12) passes through the upper cover (10) and is connected to the output shaft of the drive motor (11) through a coupling (15).

9. The environmental monitoring water quality sampling device according to any one of claims 1 to 8, characterized in that, The inner wall of the central hole is detachably connected to a base (16) by threads.

10. The environmental monitoring water quality sampling device according to any one of claims 1 to 8, characterized in that, The sampling container (1) has an opening at the top, and a lid (17) is hinged to the top plate of the sampling container (1). The lid (17) can selectively open and close the opening. A handle (18) is installed on the upper end of the outer side wall of the sampling container (1); The lower end of the outer wall of the sampling tank (1) is provided with a water outlet pipe (19), which is connected to the inside of the sampling tank (1).

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