Water sample filtering mechanism for water quality monitoring

Abstract

This utility model relates to the field of water quality monitoring technology and discloses a water sample filtration mechanism for water quality monitoring, comprising: a conical filter shell and a sampling tube. The top of the conical filter shell is provided with a cover plate, and the sampling tube is rotatably mounted in the center of the cover plate. A filter cylinder is provided outside the water inlet at the bottom end of the sampling tube. An L-shaped water inlet pipe is provided on the outer wall of the conical filter shell, and a filter screen is provided at the top of the L-shaped water inlet pipe. The water outlet of the L-shaped water inlet pipe is tangent to the inner wall of the conical filter shell. During the rotation of the L-shaped water inlet pipe, the surrounding algae can be dispersed to a certain extent. The water entering the conical filter shell is filtered again through the filter cylinder, effectively removing algae and other impurities. A brush plate is used to brush the outer wall of the filter cylinder under the action of rotation or water flow to prevent the filter screen from clogging and ensure that the filtration mechanism works continuously and stably, thereby obtaining a purer water sample for water quality monitoring.

Description

Technical Field

[0001] This utility model relates to the field of water quality monitoring technology, specifically to a water sample filtration mechanism for water quality monitoring. Background Technology

[0002] Water quality monitoring is the process of systematically collecting water samples, analyzing their physical, chemical, biological, and radioactive indicators, and assessing whether the water quality meets specific standards or uses. Water samples are representative samples collected from water bodies (such as rivers, lakes, groundwater, and wastewater) for subsequent laboratory analysis or on-site testing. Their quality directly affects the accuracy of the monitoring results.

[0003] For example, an existing Chinese patent (CN114674607A) discloses a portable water quality monitoring sampling device, including a connecting pipe, a placement frame, a filter screen, a fixing plate, a rotating rod, an intermittent opening and closing mechanism, and a fixing mechanism. The upper part of the connecting pipe has a placement frame for collecting water samples, and the upper part of the connecting pipe also has a filter screen for filtering impurities from the water sample. The filter screen is located above the placement frame. A fixing plate is located on the upper right side of the connecting pipe, and a rotating rod is rotatably mounted on the fixing plate. A limit hole is opened on the upper right side of the rotating rod. An intermittent opening and closing mechanism for automatic sampling is provided between the connecting pipe and the rotating rod. The intermittent opening and closing mechanism has a fixing mechanism for fixing the rotating rod. This invention allows water to enter the placement frame through the filter screen, which filters the water sample, thus facilitating subsequent monitoring of the water sample by staff.

[0004] However, in underwater environments, aquatic plants such as algae often densely distribute around the water intake. When the water intake equipment is started, the water flow disturbance creates a local negative pressure zone, causing surrounding microalgae to be drawn in and adsorbed onto the surface of the suction head. As the algae continue to accumulate, the water inlet channel of the suction head is gradually blocked, resulting in physical blockage. Therefore, a water sample filtration mechanism for water quality monitoring is provided. Utility Model Content

[0005] The purpose of this invention is to provide a water sample filtration mechanism for water quality monitoring, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water quality monitoring water sample filtration mechanism, comprising: a conical filter shell and a sampling tube, wherein the top of the conical filter shell is provided with a cover plate, the sampling tube is rotatably provided in the center of the cover plate, a filter cylinder is provided outside the water inlet at the bottom end of the sampling tube, an L-shaped water inlet pipe is provided on the outer wall of the conical filter shell, a filter screen is provided at the top end of the L-shaped water inlet pipe, the water outlet end of the L-shaped water inlet pipe is tangent to the inner wall of the conical filter shell, and there are multiple L-shaped water inlet pipes, which are evenly distributed circumferentially on the conical filter shell.

[0007] Furthermore, the filter cylinder is closed at both ends, and a filter mesh is provided on the side of the filter cylinder. The bottom end of the sampling tube is inserted into the interior of the filter cylinder, and a sealing ring is provided between the sampling tube and the top of the filter cylinder.

[0008] Furthermore, a fixing sleeve is provided at the bottom of the cover plate, and the fixing sleeve and the center line of the conical filter shell are on the same straight line.

[0009] Furthermore, the inner wall of the fixed sleeve is provided with a connecting rod, and a brush plate is provided on one side of the connecting rod, the brush of the brush plate being able to contact the outer wall of the filter cylinder.

[0010] Furthermore, there are multiple connecting rods, which are evenly arranged circumferentially on the fixing sleeve.

[0011] Furthermore, the inlet end of the L-shaped water inlet pipe faces upwards towards the water surface, the bottom outer wall of the fixed sleeve is provided with a connecting plate, one end of the connecting plate is provided with a blade, there are multiple connecting plates, the multiple connecting plates are evenly arranged circumferentially on the inner wall of the fixed sleeve, and the outlet of the L-shaped water inlet pipe faces the blade.

[0012] Furthermore, a counterweight is provided at the bottom of the conical filter shell, and the counterweight is conical in shape.

[0013] Furthermore, a water pump is connected to the top of the sampling tube, and the inlet of the water pump is connected to the top of the sampling tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention places the entire device, including the bottom of the sampling tube, into the sampling area. Water is pumped in through the top of the L-shaped inlet pipe, first undergoing preliminary filtration through a filter screen, and then entering the conical filter housing tangentially. The water flow impacts the blades, causing the fixing sleeve, cover plate, and conical filter housing to rotate relative to the sampling tube. During the rotation of the L-shaped inlet pipe, surrounding algae can be partially dispersed. The water entering the conical filter housing is filtered again through the filter cylinder, effectively removing algae and other impurities. Simultaneously, a brush plate is used to brush the outer wall of the filter cylinder under the action of rotation or water flow, preventing the filter screen from clogging and ensuring the continuous and stable operation of the filtration mechanism, thereby obtaining a purer water sample for water quality monitoring.

[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0017] Figure 1 This is a perspective view of a water sample filtration mechanism for water quality monitoring according to the present invention.

[0018] Figure 2This is a front sectional view of a water sample filtration mechanism for water quality monitoring according to this utility model;

[0019] Figure 3 This is a perspective view of a water sample filtration mechanism for water quality monitoring according to the present invention.

[0020] Figure 4 This is a front view of a water sample filtration mechanism for water quality monitoring according to this utility model;

[0021] Figure 5 This is a perspective view of a water sample filtration mechanism for water quality monitoring according to this utility model.

[0022] Figure 6 This is a schematic diagram of the internal structure of a water sample filtration mechanism for water quality monitoring according to this utility model;

[0023] Figure 7 This is a left view of a water sample filtration mechanism for water quality monitoring according to this utility model.

[0024] In the diagram: 1. Counterweight; 2. Conical filter housing; 3. L-shaped inlet pipe; 4. Filter screen; 5. Cover plate; 6. Sampling tube; 7. Water pump; 8. Filter cylinder; 9. Fixing sleeve; 10. Connecting plate; 11. Blade; 12. Connecting rod; 13. Brush plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figures 1-7 This utility model provides a technical solution: a water quality monitoring water sample filtration mechanism, including: a conical filter shell 2 and a sampling tube 6. The top of the conical filter shell 2 is provided with a cover plate 5, and the sampling tube 6 is rotatably disposed in the center of the cover plate 5. The cover plate 5 serves to seal the top of the conical filter shell 2 to prevent external impurities from entering, and at the same time provides an installation position for the sampling tube 6. The sampling tube 6 is rotatably disposed in the center of the cover plate 5, so that the sampling tube 6 and the conical filter shell 2 can rotate relative to each other.

[0027] A filter cylinder 8 is installed on the outside of the water inlet at the bottom of the sampling tube 6. The filter cylinder 8 directly filters the water sample entering the sampling tube 6, intercepting larger particles, impurities, and algae in the water, ensuring that the water sample enters the sampling tube 6 smoothly. An L-shaped water inlet pipe 3 is installed on the outer wall of the conical filter shell 2. A filter screen 4 is installed at the top of the L-shaped water inlet pipe 3. The L-shaped water inlet pipe 3 is used to introduce the external water sample into the conical filter shell 2. The filter screen 4 at the top can perform preliminary filtration on the water sample entering the L-shaped water inlet pipe 3, removing larger floating objects and impurities, and preventing them from entering the conical filter shell 2 and affecting the subsequent filtration effect. The outlet end of the L-shaped water inlet pipe 3 is tangent to the inner wall of the conical filter shell 2. There are multiple L-shaped water inlet pipes 3, which are evenly distributed circumferentially on the conical filter shell 2. The design of the water outlet being tangential to the inner wall allows water flowing out from the L-shaped inlet pipe 3 to enter tangentially along the inner wall of the conical filter shell 2, generating tangential water flow; multiple circumferentially evenly distributed L-shaped inlet pipes 3 can form multiple tangential water flows, enhancing the impact of the water flow on the internal structure.

[0028] The filter cylinder 8 is closed at both ends, and has filter mesh openings on its side. The bottom end of the sampling tube 6 is inserted into the filter cylinder 8, and a sealing ring is provided between the sampling tube 6 and the top end of the filter cylinder 8. The filter cylinder 8 is closed at both ends and has filter mesh openings on its side, which ensures that the water sample enters the filter cylinder 8 from the side for filtration, while preventing unfiltered water from directly entering the sampling tube 6 from both ends.

[0029] The bottom of the cover plate 5 is provided with a fixing sleeve 9, and the center line of the fixing sleeve 9 and the conical filter shell 2 are aligned. The alignment of the center line of the fixing sleeve 9 and the conical filter shell 2 ensures the stability and symmetry of the entire structure, which is beneficial for subsequent rotation.

[0030] A connecting rod 12 is provided on the inner wall of the fixing sleeve 9, and a brush plate 13 is provided on one side of the connecting rod 12. The brush of the brush plate 13 can contact the outer wall of the filter cylinder 8. The connecting rod 12 fixes the brush plate 13 to the fixing sleeve 9, so that the brush of the brush plate 13 can contact the outer wall of the filter cylinder 8. Under the action of water flow impact, the brush plate 13 can brush the outer wall of the filter cylinder 8 to prevent impurities and algae from clogging the filter mesh and ensure the filtration effect of the filter cylinder 8.

[0031] There are multiple connecting rods 12, which are evenly arranged circumferentially on the fixed sleeve 9. The multiple evenly arranged connecting rods 12 make the brush plate 13 more evenly distributed around the fixed sleeve 9, which can more thoroughly brush the outer wall of the filter cartridge 8 and improve the cleaning effect.

[0032] The inlet end of the L-shaped water inlet pipe 3 faces upwards towards the water surface. A connecting plate 10 is provided on the outer wall of the bottom of the fixing sleeve 9. One end of the connecting plate 10 is provided with a blade 11. There are multiple connecting plates 10, which are evenly arranged circumferentially on the inner wall of the fixing sleeve 9. The outlet of the L-shaped water inlet pipe 3 faces the blade 11. The inlet end of the L-shaped water inlet pipe 3 faces upwards towards the water surface, which facilitates the intake of water samples. The connecting plate 10 fixes the blade 11 to the fixing sleeve 9. When the outlet of the L-shaped water inlet pipe 3 faces the blade 11, the water flow impacts the blade 11 and generates a rotational force, which drives the fixing sleeve 9, the cover plate 5, and the conical filter shell 2 connected to the cover plate 5 to rotate relative to the sampling tube 6, realizing the automatic rotation function of the structure.

[0033] The bottom of the conical filter housing 2 is equipped with a counterweight 1, which is conical in shape. The counterweight 1 increases the weight of the entire bottom of the filter mechanism, making the mechanism stable in water and preventing swaying or tipping due to water flow impact or its own rotation. The conical design of the counterweight 1 helps to reduce water flow resistance, allowing the mechanism to work more smoothly in water.

[0034] A water pump 7 is connected to the top of the sampling tube 6, and the inlet of the water pump 7 is connected to the top of the sampling tube 6. The water pump 7 provides power for the flow of water sample in the sampling tube 6, and extracts the filtered water sample from the sampling tube 6 for subsequent water quality monitoring and analysis.

[0035] This invention places the entire device at the bottom of the sampling tube 6 into the sampling area. Water is pumped in by the water pump 7 and enters from the top of the L-shaped inlet pipe 3. The water first passes through the filter screen 4 for preliminary filtration, and then enters the conical filter shell 2 tangentially. The water flow impacts the blades 11, causing the fixing sleeve 9, cover plate 5, and conical filter shell 2 to rotate relative to the sampling tube 6. During the rotation of the L-shaped inlet pipe 3, surrounding algae can be dispersed to a certain extent. The water entering the conical filter shell 2 is filtered again through the filter cylinder 8, effectively removing algae and other impurities. At the same time, the brush plate 13 brushes the outer wall of the filter cylinder 8 under the action of rotation or water flow to prevent the filter screen from clogging and ensure the continuous and stable operation of the filtration mechanism, thereby obtaining a purer water sample for water quality monitoring.

[0036] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A water sample filtration mechanism for water quality monitoring, comprising: The conical filter shell (2) and sampling tube (6) are characterized in that: the top of the conical filter shell (2) is provided with a cover plate (5), the center of the cover plate (5) is provided with a sampling tube (6), the bottom end of the sampling tube (6) is provided with a filter cylinder (8) outside the water inlet, the outer wall of the conical filter shell (2) is provided with an L-shaped water inlet pipe (3), the top end of the L-shaped water inlet pipe (3) is provided with a filter screen (4), the water outlet of the L-shaped water inlet pipe (3) is tangent to the inner wall of the conical filter shell (2), there are multiple L-shaped water inlet pipes (3), and the multiple L-shaped water inlet pipes (3) are evenly distributed circumferentially on the conical filter shell (2).

2. The water sample filtration mechanism for water quality monitoring according to claim 1, characterized in that: The filter cylinder (8) is closed at both ends, and a filter mesh is provided on the side of the filter cylinder (8). The bottom end of the sampling tube (6) is inserted into the filter cylinder (8), and a sealing ring is provided between the sampling tube (6) and the top of the filter cylinder (8).

3. The water sample filtration mechanism for water quality monitoring according to claim 2, characterized in that: The bottom of the cover plate (5) is provided with a fixing sleeve (9), and the center line of the fixing sleeve (9) and the conical filter shell (2) are on the same straight line.

4. The water sample filtration mechanism for water quality monitoring according to claim 3, characterized in that: The inner wall of the fixed sleeve (9) is provided with a connecting rod (12), and a brush plate (13) is provided on one side of the connecting rod (12). The brush of the brush plate (13) can contact the outer wall of the filter cylinder (8).

5. A water sample filtration mechanism for water quality monitoring according to claim 4, characterized in that: There are multiple connecting rods (12), and the multiple connecting rods (12) are evenly arranged circumferentially on the fixing sleeve (9).

6. A water sample filtration mechanism for water quality monitoring according to claim 5, characterized in that: The inlet end of the L-shaped water inlet pipe (3) faces upwards towards the water surface. The bottom outer wall of the fixed sleeve (9) is provided with a connecting plate (10). One end of the connecting plate (10) is provided with a blade (11). There are multiple connecting plates (10). The multiple connecting plates (10) are evenly arranged circumferentially on the inner wall of the fixed sleeve (9). The outlet of the L-shaped water inlet pipe (3) faces the blade (11).

7. A water sample filtration mechanism for water quality monitoring according to claim 1, characterized in that: The bottom of the conical filter shell (2) is provided with a counterweight (1), which is conical in shape.

8. A water sample filtration mechanism for water quality monitoring according to claim 1, characterized in that: The top of the sampling tube (6) is connected to a water pump (7), and the inlet of the water pump (7) is connected to the top of the sampling tube (6).

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