Water sample filtering mechanism for water quality monitoring

Abstract

The utility model relates to the technical field of water quality monitoring, in particular to a water sample filtering mechanism for water quality monitoring, which comprises a base, a first support rod, a second support rod, a filter and a filtering funnel, the first supporting rod and the second supporting rod are symmetrically and vertically fixed to the upper portion of the base, the filter and the filtering funnel are sequentially arranged between the first supporting rod and the second supporting rod from top to bottom, one end of the filter and one end of the filtering funnel are hinged to the first supporting rod, and the other end of the filter and one end of the filtering funnel are detachably connected with the second supporting rod. And filter paper is arranged in the filter funnel. The filter and the filter funnel sequentially filter a water quality sample, one end of the filter and one end of the filter funnel are hinged to the first supporting rod, the other end of the filter and the other end of the filter funnel are detachably connected with the second supporting rod, the filter and the filter funnel can be rotated to the side, and impurities filtered out of the filter and the filter funnel can be conveniently collected; therefore, the water quality sample can be thoroughly filtered, and the filtering quality is effectively improved.

Description

Technical Field

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

[0002] Water environment monitoring typically involves sampling from open water bodies, which inevitably introduces debris such as dead branches into the sample. Therefore, water filtration is necessary during monitoring. Existing water environment monitoring filtration devices are complex in their components and make it difficult to clean up the filtered debris.

[0003] Utility model patent CN221846239U discloses a water sample filtration device for water environment monitoring, including a filter box, a suction pump at the top of the filter box, a suction pipe at the outer end of the suction pump, a filter screen cylinder fixed at the lower end of the suction pipe, an inclined screen plate fixed on the inner surface of the filter box, a material guide port on the outer side of the inclined screen plate, a variable diameter hopper at the bottom of the filter box, a transverse return pipe at the bottom of the variable diameter hopper, and a water sample detection probe installed at the inner end of the transverse return pipe. The device uses a suction pump for suction, both external and internal suction filtration, and returns the sample through the bottom transverse return pipe. Impurities are then filtered through the inclined screen plate, and can be discharged from the inclined surface, facilitating material guidance, cleaning, and a simple, low-cost mechanism. However, its shortcomings are: firstly, water quality monitoring usually requires testing of the filtered material, and the existing technology does not facilitate the collection of impurities filtered by the filter screen cylinder fixed at the lower end of the suction pipe; secondly, filtering water samples solely through the filter screen results in incomplete filtration. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a water sample filtration mechanism for water quality monitoring that can solve the above problems.

[0005] A water sample filtration mechanism for water quality monitoring includes a base, a first support rod, a second support rod, a filter, and a filter funnel. The first and second support rods are symmetrically and vertically fixed above the base. The filter and filter funnel are arranged sequentially from top to bottom between the first and second support rods. One end of the filter and filter funnel is hinged to the first support rod, and the other end is detachably connected to the second support rod. Filter paper is disposed inside the filter funnel.

[0006] Furthermore, a slot is provided on the first support rod, the position of which corresponds to the filter or filter funnel. A first hinge shaft is vertically rotatably arranged inside the slot, and the end of the filter or filter funnel near the first support rod is hinged to the first support rod through the first hinge shaft.

[0007] Furthermore, both the filter and the filter funnel are provided with an outer ring plate at their upper edges, and the bottom surface of the outer ring plate is connected to the first hinge shaft through a connecting part.

[0008] Furthermore, an upper limit plate and a lower support plate are fixed on the side of the second support rod near the first support rod. The upper limit plate and the lower support plate are located on the upper and lower sides of the outer ring plate, respectively, and the top surface of the lower support plate abuts against the bottom surface of the outer ring plate.

[0009] Furthermore, a first insert rod is vertically inserted through the lower support plate, the first insert rod is slidably connected to the lower support plate, a first slot corresponding to the first insert rod is opened on the bottom surface of the outer ring plate, a baffle is fixed at the lower end of the first insert rod, and a spring is sleeved on the first insert rod, the two ends of the spring are respectively fixedly connected to the lower support plate and the baffle.

[0010] Furthermore, the filter has a basin-shaped structure with filter holes at the bottom, and the diameter of the upper end of the filter is the same as the diameter of the upper end of the filter funnel.

[0011] Furthermore, the system includes at least two filters arranged vertically, with the pore size of the filters decreasing sequentially from top to bottom.

[0012] Furthermore, a collection cup is placed on the top surface of the base, and the collection cup is located directly below the filter funnel.

[0013] Furthermore, the lower ends of the first and second support rods are both fixed with brackets, which are in the shape of a "7". The brackets are located outside the first or second support rod, and the collecting cup is located between the two brackets. A limiting frame is provided below the brackets. The limiting frame is in the shape of a "7". The upper edge of the limiting frame is hinged to the top of the support rod, and the lower end of the limiting frame is slidably connected to the base.

[0014] Furthermore, the connecting part has a vertically formed insertion hole or a second slot at one end located outside the slot, and a second insertion rod adapted to the insertion hole or the second slot is fixed on the bottom surface of the outer ring plate. The outer ring plate is detachably connected to the connecting part through the second insertion rod, and the cross-section of the insertion rod is square.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The water quality monitoring water sample filtration mechanism of this utility model has a filter and a filter funnel arranged sequentially from top to bottom between the first support rod and the second support rod, so that the filter and the filter funnel filter the water sample in sequence. Since one end of the filter and the filter funnel are hinged to the first support rod and the other end is detachably connected to the second support rod, the filter and the filter funnel can be rotated to the side to facilitate the collection of impurities filtered out of the filter and the filter funnel. Furthermore, since filter paper is set in the filter funnel, the water sample can be thoroughly filtered, effectively improving the filtration quality.

[0017] The water quality monitoring water sample filtration mechanism of this utility model has a vertically opened insertion hole or second slot at one end of the connecting part located outside the groove, and a second insertion rod that matches the insertion hole or second slot is fixed on the bottom surface of the outer ring plate, so that the outer ring plate can be detachably connected to the connecting part through the second insertion rod, thereby realizing the detachable connection between the filter and the filter funnel and the first support rod, which is convenient for replacing filters with different pore sizes, and also convenient for removing the filter and filter funnel for cleaning. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the water sample filtration mechanism for water quality monitoring in this utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of the water sample filtration mechanism for water quality monitoring in this utility model in another state.

[0021] Figure 3 This is a partial structural schematic diagram of the water sample filtration mechanism for water quality monitoring in this utility model.

[0022] Figure 4 This is a schematic diagram of the filter structure in this utility model.

[0023] Figure 5 yes Figure 2 Enlarged view of point A in the middle.

[0024] Figure 6 yes Figure 2 Enlarged view of section B in the middle.

[0025] In the diagram: 1. Base; 2. First support rod; 3. Second support rod; 4. Filter; 5. Filter funnel; 6. Groove; 7. First hinge pin; 8. Outer ring plate; 9. Connecting part; 10. Upper limit plate; 11. Lower support plate; 12. First insertion rod; 13. Baffle; 14. Spring; 15. Collection cup; 16. Bracket; 17. Limiting frame; 18. Second insertion rod; 19. Slide groove; 20. Indicator area. Detailed Implementation

[0026] 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.

[0027] like Figure 1 , Figure 2 As shown, the water quality monitoring water sample filtration mechanism in this embodiment includes a base 1, a first support rod 2, a second support rod 3, a filter 4, and a filter funnel 5. The first support rod 2 and the second support rod 3 are symmetrically and vertically fixed above the base 1. The filter 4 and the filter funnel 5 are arranged sequentially from top to bottom between the first support rod 2 and the second support rod. One end of the filter 4 and the filter funnel 5 is hinged to the first support rod 2, and the other end is detachably connected to the second support rod 3. Filter paper is provided inside the filter funnel 5.

[0028] The filter 4 and the filter funnel 5 are arranged sequentially from top to bottom between the first support rod 2 and the second support rod, so that the filter 4 and the filter funnel 5 filter the water sample in sequence. Since one end of the filter 4 and the filter funnel 5 is hinged to the first support rod 2 and the other end is detachably connected to the second support rod 3, the filter 4 and the filter funnel 5 can be rotated to the side to facilitate the collection of impurities filtered out by the filter 4 and the filter funnel 5. Furthermore, since the filter funnel 5 is equipped with filter paper, the water sample can be thoroughly filtered, effectively improving the filtration quality.

[0029] In this embodiment, two filters 4 are arranged vertically between the first support rod 2 and the second support rod 3. The pore diameters of the filters 4 decrease sequentially from top to bottom. The filter funnel 5 is located below the two filters 4. The filters 4 have a basin-shaped structure with pores at the bottom, and the diameter of the upper end of the filters 4 is the same as the diameter of the upper end of the filter funnel 5. Three slots 6 are formed on the first support rod 2 from top to bottom. Specifically, in conjunction with... Figure 3 and Figure 5As shown, the slot 6 is a horizontally opened U-shaped through-slot structure. The position of the slot 6 corresponds to the position of the filter 4 or the filter funnel 5. A first hinge shaft 7 is vertically installed inside the slot 6. The upper and lower ends of the first hinge shaft 7 are rotatably connected to the first support rod 2. The end of the filter 4 or the filter funnel 5 closest to the first support rod 2 is hinged to the first support rod 2 through the first hinge shaft 7.

[0030] Specifically, both the filter 4 and the filter funnel 5 have an outer ring plate 8 at their upper edges. The inner wall of the outer ring plate 8 is connected to the upper ends of the filter 4 and the filter funnel 5, and the bottom surface of the outer ring plate 8 is connected to the first hinge shaft 7 via a connecting part 9. Preferably, one end of the connecting part 9 is fixedly connected to the first hinge shaft 7, and the other end extends to the outside of the slot 6. The end of the connecting part 9 located outside the slot 6 has a vertically formed insertion hole or a second slot, such as... Figure 4 As shown, a second insertion rod 18 adapted to the insertion hole or the second slot is fixed on the bottom surface of the outer ring plate 8. The outer ring plate 8 is detachably connected to the connecting part 9 through the second insertion rod 18. The cross-section of the insertion rod is square.

[0031] In this embodiment, combined with Figure 3 and Figure 6 As shown, an upper limit plate 10 and a lower support plate 11 are fixed on the side of the second support rod 3 near the first support rod 2. The upper limit plate 10 and the lower support plate 11 are located on the upper and lower sides of the outer ring plate 8, respectively, and the top surface of the lower support plate 11 abuts against the bottom surface of the outer ring plate 8. By setting the lower support plate 11, the lower support plate 11 can support the outer ring plate 8 that has rotated to the top of the filter 4 or filter funnel 5 between the first support rod 2 and the second support rod 3. By setting the upper limit plate 10, the upper limit plate 10 can cooperate with the lower support plate 11 to limit the outer ring plate 8 in the vertical direction.

[0032] Preferably, a first insert rod 12 is vertically inserted through the lower support plate 11, and the first insert rod 12 is slidably connected to the lower support plate 11. A first slot corresponding to the first insert rod 12 is opened on the bottom surface of the outer ring plate 8. A baffle 13 is fixed to the lower end of the first insert rod 12, and a spring 14 is sleeved on the first insert rod 12. The two ends of the spring 14 are fixedly connected to the lower support plate 11 and the baffle 13, respectively. By setting the first insert rod 12, the baffle 13, and the spring 14, when the filter 4 or the filter funnel 5 rotates between the first support rod 2 and the second support rod 3, the upper end of the first insert rod 12 is inserted into the first slot, thereby limiting the outer ring plate 8 in the horizontal direction.

[0033] In this embodiment, a collection cup 15 is placed on the top surface of the base 1, and the collection cup 15 is located directly below the filter funnel 5. A bracket 16 is fixed to the lower end of both the first support rod 2 and the second support rod 3. The bracket 16 has a "7" shaped structure and is located outside the first support rod 2 or the second support rod 3. The collection cup 15 is located between the two brackets 16. A limiting frame 17 is provided below the bracket 16. The limiting frame 17 has a "7" shaped structure, with its upper edge hinged to the top of the bracket 16, and its lower end slidably connected to the base 1.

[0034] Specifically, the lower ends of the first support rod 2 and the second support rod 3 are fixedly connected to the horizontal end of the bracket 16 away from the vertical part. The horizontal end of the limiting frame 17 away from the vertical part is rotatably connected to the horizontal end of the bracket 16 away from the vertical part via a second hinge. An arc-shaped groove 19 with the second hinge as its center is provided on the top surface of the base 1, and the lower end of the vertical part of the limiting frame 17 is slidably disposed in the arc-shaped groove 19. Preferably, an indicator area 20 for placing the collection cup 15 is provided on the top surface of the base 1.

[0035] The working principle of the water sample filtration mechanism for water quality monitoring in this embodiment is as follows:

[0036] Two filters 4 and a filter funnel 5 are sequentially arranged from top to bottom between the first support rod 2 and the second support rod 3. The pore size of the two filters 4 decreases from top to bottom, allowing the filters 4 and filter funnel 5 to filter the water sample sequentially. Since one end of the filters 4 and filter funnel 5 is hinged to the first support rod 2 and the other end is detachably connected to the second support rod 3, the filters 4 and filter funnel 5 can be rotated to the side to facilitate the collection of impurities of different particle sizes filtered out, aiding in subsequent testing. Furthermore, the filter paper in the filter funnel 5 ensures thorough filtration of the water sample, effectively improving filtration quality. Because the filters 4 can be rotated to the side, only one filter 4 can be used for filtration, or the filter funnel 5 can be used alone, offering greater flexibility.

[0037] By vertically opening an insertion hole or a second slot at one end of the connecting part 9 located outside the slot 6, and fixing a second insertion rod 18 that matches the insertion hole or the second slot on the bottom surface of the outer ring plate 8, the outer ring plate 8 can be detachably connected to the connecting part 9 through the second insertion rod 18, thereby realizing a detachable connection between the filter 4 and the filter funnel 5 and the first support rod 2, which facilitates the replacement of filters 4 with different pore sizes, and makes it easy to remove the filter 4 and the filter funnel 5 for cleaning.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water sample filtering mechanism for water quality monitoring, characterized by, It comprises a base (1), a first supporting rod (2), a second supporting rod (3), a filter (4) and a filter funnel (5). The first supporting rod (2) and the second supporting rod (3) are symmetrically and vertically fixed above the base (1), the filter (4) and the filter funnel (5) are sequentially arranged from top to bottom between the first supporting rod (2) and the second supporting rod (3), one end of the filter (4) and the filter funnel (5) is hingedly connected with the first supporting rod (2), the other end is detachably connected with the second supporting rod (3), and the filter funnel (5) is provided with filter paper.

2. The water sample filtering mechanism for water quality monitoring according to claim 1, characterized in that, A notch (6) is formed in the first supporting rod (2), the notch (6) corresponds to the filter (4) or the filter funnel (5), a first hinge shaft (7) is vertically arranged in the notch (6), and one end of the filter (4) or the filter funnel (5) near the first supporting rod (2) is hingedly connected with the first supporting rod (2) through the first hinge shaft (7).

3. The water sample filtering mechanism for water quality monitoring according to claim 2, wherein, An outer ring plate (8) is arranged at the upper end edge of the filter (4) and the filter funnel (5), and the bottom surface of the outer ring plate (8) is connected with the first hinge shaft (7) through a connecting portion (9).

4. The water quality monitoring water sample filtering mechanism according to claim 3, wherein, An upper limiting plate (10) and a lower supporting plate (11) are fixed to one side of the second supporting rod (3) near the first supporting rod (2), the upper limiting plate (10) and the lower supporting plate (11) are respectively located on the upper side and the lower side of the outer ring plate (8), and the top surface of the lower supporting plate (11) abuts against the bottom surface of the outer ring plate (8).

5. The water quality monitoring water sample filtering mechanism according to claim 4, wherein, A first inserting rod (12) vertically penetrates the lower supporting plate (11), the first inserting rod (12) is slidably connected with the lower supporting plate (11), the bottom surface of the outer ring plate (8) is provided with a first inserting slot corresponding to the first inserting rod (12), the lower end of the first inserting rod (12) is fixed with a baffle (13), and a spring (14) is sleeved on the first inserting rod (12), and the two ends of the spring (14) are fixedly connected with the lower supporting plate (11) and the baffle (13) respectively.

6. The water quality monitoring water sample filtering mechanism according to claim 5, wherein, The filter (4) has a basin structure with filter holes arranged at the bottom, and the upper end diameter of the filter (4) is the same as the upper end diameter of the filter funnel (5).

7. The water quality monitoring water sample filtering mechanism according to claim 6, wherein, At least two filters (4) are arranged in sequence, and the hole diameters of the filter holes of the filters (4) are sequentially reduced from top to bottom.

8. The water quality monitoring water sample filtering mechanism according to claim 7, wherein, A collecting cup (15) is arranged on the top surface of the base (1), and the collecting cup (15) is located directly below the filter funnel (5).

9. The water quality monitoring water sample filtering mechanism according to claim 8, wherein, A support (16) is fixed to the lower end of each of the first supporting rod (2) and the second supporting rod (3), the support (16) has a "7" type structure, the support (16) is located on the outer side of the first supporting rod (2) or the second supporting rod (3), the collecting cup (15) is located between the two supports (16), a limiting frame (17) is arranged below the support (16), the limiting frame (17) has a "7" type structure, the upper end edge of the limiting frame (17) is hingedly connected with the top of the support (16), and the lower end of the limiting frame (17) is slidably connected with the base (1).

10. The water quality monitoring water sample filtering mechanism according to claim 9, wherein, The connecting part (9) is vertically provided with a socket or a second slot at one end outside the notch (6), the bottom surface of the outer ring plate (8) is fixed with a second insertion rod (18) matched with the socket or the second slot, and the outer ring plate (8) is detachably connected with the connecting part (9) through the second insertion rod (18), and the cross section of the insertion rod is in a square structure.

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