Automatic impurity removing device for water sample pretreatment

Abstract

The utility model discloses a water sample pretreatment automatic edulcoration device, including sampling cylinder and filter cylinder, sampling cylinder and water suction pump, filter cylinder and water suction pump all are connected through the water pipe between, and be equipped with connecting piece between two filter cylinders, and be equipped with drive assembly in connecting piece, be equipped with filter screen in filter cylinder, be equipped with first rotary lever rotatably in filter cylinder, and first rotary lever is equipped with scraper, and second rotary lever is sleeved on first rotary lever, be equipped with fan blade on second rotary lever, and second rotary lever is equipped with fixed link, be equipped with insertion block on fixed link, and insertion block inserts into the filter hole of filter screen, be equipped with push assembly in filter cylinder, the utility model discloses drive first rotary lever rotation through drive assembly to drive scraper rotation, and the side of filter screen in environmental water body is scraped to remove floating object from filter screen, when filter screen moves in the inside of filter cylinder under the action of push assembly, and the insertion block on fixed link cleans up the filter hole of filter screen irregularly, avoids the filter hole of filter screen and is blocked.

Description

Technical Field

[0001] This utility model belongs to the field of water sample collection technology, and in particular relates to an automatic impurity removal device for water sample pretreatment. Background Technology

[0002] Lakes and oceans, as vital water resource treasures, are not only deeply integrated into human life and production activities, but also crucial environments for the survival and reproduction of numerous aquatic organisms. Water quality testing and sampling can systematically assess the impact of the aquatic environment on aquatic life, clearly demonstrating how changes in water quality affect the structure and diversity of biological communities such as fish, shellfish, and plankton. In actual water sampling, the sampling device must be immersed in the environmental water. However, floating debris, aquatic plants, and other impurities are commonly found in water bodies, necessitating the use of filtration devices. If floating debris and other impurities are not promptly removed from the filtration device, the filter screen is easily clogged, interfering with the normal collection of water samples. Utility Model Content

[0003] Based on the above background, the purpose of this utility model is to provide an automatic impurity removal device for water sample pretreatment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic impurity removal device for water sample pretreatment includes a sampling cylinder and a filter cylinder; a water pump is provided between the sampling cylinder and the filter cylinder.

[0006] The sampling cylinder and the water pump, as well as the filter cylinder and the water pump, are all connected by water pipes.

[0007] A connector is provided between the two filter cartridges, and a drive assembly is provided inside the connector;

[0008] The filter cylinder has a filter screen inside its open end, and the filter screen is slidably connected to the inner wall of the filter cylinder.

[0009] The filter cylinder is rotatably provided with a first rotating rod. One end of the first rotating rod extends into the connector and is connected to the drive assembly. The other end of the first rotating rod passes through the filter screen and is provided with a scraper. The side of the scraper abuts against the side of the filter screen. The first rotating rod is rotatably connected to the filter screen.

[0010] A second rotating rod is sleeved on the first rotating rod, and the second rotating rod is rotatably connected to the first rotating rod;

[0011] The second rotating rod is equipped with fan blades;

[0012] The second rotating rod has a fixing rod on its side, which is located on the side of the filter screen away from the scraper. The fixing rod has multiple inserts, which are inserted into the filter holes of the filter screen when the filter screen moves into the filter cylinder.

[0013] The filter cylinder is equipped with a pushing component, which pushes the filter screen to move along the inner wall of the filter cylinder.

[0014] The above technical solution involves placing the filter cartridge in the ambient water body. A water pump is activated to draw water from the ambient water body through a water pipe. The water flows through the filter cartridge into the sampling cartridge. As the water passes through the filter cartridge, the drive assembly rotates the first rotating rod, which in turn rotates the scraper, scraping the side of the filter screen in the ambient water body to remove floating debris. As the water flows into the filter cartridge, it drives the fan blades to rotate, which in turn rotates the second rotating rod, which in turn rotates the fixed rod. As the filter screen moves inside the filter cartridge under the action of the drive assembly, the inserts on the fixed rod irregularly clean the filter screen's pores, preventing clogging and ensuring water intake. The use of two filter cartridges improves water intake efficiency.

[0015] Furthermore, an annular groove is provided on the inner wall of the filter cylinder, and a rotating block is provided on the periphery of the filter screen. The rotating block is rotatably disposed in the annular groove and moves along its axial direction within the annular groove.

[0016] A spring is provided inside the annular groove, and the two ends of the spring are connected to the annular groove and the filter screen, respectively.

[0017] Through the above technical solution, when the filter screen moves in the annular groove, it exerts pressure on the spring, thereby causing the filter screen to vibrate up and down. This enables the insert block to clean the filter screen periodically, and the vibration of the filter screen can also remove some of the attached substances, ensuring the filtration effect of the filter screen.

[0018] Furthermore, the spring is provided with a guide rod, which passes through the filter screen and is slidably connected to the filter screen;

[0019] Both ends of the guide rod are fixed in the annular groove.

[0020] Through the above technical solution, the guide rod plays a limiting role in the filter screen, preventing the filter screen from rotating in the annular groove.

[0021] Furthermore, a baffle is provided on the side of the filter screen near the scraper, and the baffle is annular and abuts against the inner wall of the filter cylinder.

[0022] With the above technical solution, when the filter screen moves, the baffle can block the annular groove near the water body, preventing floating objects from entering the annular groove.

[0023] Furthermore, the drive assembly includes a sealing housing, a motor, a driving bevel gear, and a driven bevel gear;

[0024] The connector has a sealing shell inside, and both ends of the sealing shell are connected to the filter cylinder;

[0025] The sealed housing contains a driving bevel gear and a driven bevel gear that are rotatably connected; the driving bevel gear and the driven bevel gear are meshed together.

[0026] One end of the first rotating rod extends into the connecting member and is connected to the driven bevel gear;

[0027] The sealing shell is equipped with a motor, and the output end of the motor is connected to the drive bevel gear.

[0028] Through the above technical solution, the motor drives the active bevel gear to rotate, which in turn drives the two driven bevel gears to rotate, thereby driving the first rotating rod inside the two filter cylinders to rotate.

[0029] Furthermore, the inner wall of the filter cylinder is provided with a groove along the axial direction of the filter cylinder;

[0030] The pushing component includes a movable rod; the movable rod is connected to the filter screen, and the movable rod is slidably disposed in a groove;

[0031] The movable rod is provided with a first push block at one end near the connector; the first push block is located inside the filter cylinder, and the side of the first push block near the filter screen is inclined.

[0032] An auxiliary rod is provided on the side of the first rotating rod, and a second push block is provided on the auxiliary rod. The side of the second push block away from the filter screen is set with an incline.

[0033] Through the above technical solution, the first rotating rod drives the auxiliary rod to rotate, and the second push block rotates accordingly. When it passes under the first push block, the inclined surface of the second push block contacts the inclined surface of the first push block and pushes the first push block to move upward. The first push block drives the moving rod to move upward, thereby driving the filter screen to move.

[0034] Furthermore, the end of the first rotating rod near the filter screen is a retractable structure.

[0035] With the above technical solution, when the filter screen moves, the scraper always rotates on the surface of the filter screen to clean it.

[0036] Furthermore, the scraper has a triangular cross-section on the side closest to the filter screen.

[0037] Through the above technical solution, the scraper can better remove floating objects from the surface of the filter screen.

[0038] Furthermore, the two ends of the second rotating rod are connected to the first rotating rod via bearings.

[0039] This utility model has the following beneficial effects:

[0040] 1. After immersing the filter cartridge in the ambient water, start the water pump to draw water through the water pipe. As the water flows through the filter cartridge into the sampling cartridge, the drive assembly rotates the first rotating rod, which in turn causes the scraper to rotate synchronously, continuously scraping away floating debris attached to the outside of the filter screen (the part located in the water). At the same time, the water flow impacts the fan blades, causing them to rotate, which in turn drives the fixed rod to rotate via the second rotating rod. As the filter screen moves within the filter cartridge under the action of the drive assembly, the inserts on the fixed rod irregularly clean the filter screen pores, effectively preventing clogging and ensuring smooth water intake. The dual-filter cartridge design significantly improves the overall water intake efficiency.

[0041] 2. The first rotating rod drives the auxiliary rod to rotate, and the second push block rotates accordingly. When it passes under the first push block, the inclined surface of the second push block contacts the inclined surface of the first push block and pushes the first push block to move upward. The first push block drives the moving rod to move upward, thereby driving the filter screen to move. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0043] Figure 1 This is a cross-sectional view of the filter cartridge of this utility model;

[0044] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0045] Figure 3 This is a three-dimensional cross-sectional structural diagram of the filter cartridge of this utility model;

[0046] Figure 4 This is a three-dimensional structural diagram of the filter screen of this utility model;

[0047] Figure 5 This is a three-dimensional structural diagram of the fixing rod, scraper, and pushing assembly of this utility model. Figure 1 ;

[0048] Figure 6 This is a three-dimensional structural diagram of the fixing rod, scraper, and pushing assembly of this utility model. Figure 2 .

[0049] Wherein: 1. Filter cylinder; 11. First rotating rod; 12. Scraper; 13. Second rotating rod; 14. Fan blade; 15. Fixing rod; 16. Insert block; 17. Annular groove; 18. Sliding groove;

[0050] 2. Sampling tube;

[0051] 3. Water pump; 31. Water pipe;

[0052] 4. Connecting parts; 41. Driving bevel gear; 42. Driven bevel gear; 43. Motor; 44. Sealing housing;

[0053] 5. Filter screen; 51. Rotating block; 52. Spring; 53. Guide rod; 54. Baffle;

[0054] 6. Moving rod; 61. First push block; 62. Second push block; 63. Auxiliary rod. Detailed Implementation

[0055] 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.

[0056] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0057] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0058] like Figure 1-6As shown, an automatic impurity removal device for water sample pretreatment includes a sampling cylinder 2 and a filter cylinder 1; a water pump 3 is provided between the sampling cylinder 2 and the filter cylinder 1; the sampling cylinder 2 and the water pump 3, and the filter cylinder 1 and the water pump 3 are all connected by water pipes 31; a connecting member 4 is provided between the two filter cylinders 1, and a driving assembly is provided inside the connecting member 4; a filter screen 5 is provided inside the open end of the filter cylinder 1, and the filter screen 5 is slidably connected to the inner wall of the filter cylinder 1; a first rotating rod 11 is rotatably provided inside the filter cylinder 1, and one end of the first rotating rod 11 extends into the connecting member 4 and connects with the driving assembly. The first rotating rod 11 is connected to the filter screen 5 at one end, and a scraper 12 is provided thereon. The side of the scraper 12 abuts against the side of the filter screen 5. The scraper 12 has a triangular cross-section on the side near the filter screen 5. The first rotating rod 11 is rotatably connected to the filter screen 5. A second rotating rod 13 is sleeved on the first rotating rod 11. The two ends of the second rotating rod 13 are rotatably connected to the first rotating rod 11 through bearings. A fan blade 14 is provided on the second rotating rod 13. A fixing rod 15 is provided on the side of the second rotating rod 13, and the fixing rod 15 is located on the side of the filter screen 5 away from the scraper. The fixed rod 15 is equipped with multiple inserts 16. When the filter screen 5 moves into the filter cylinder 1, the inserts 16 are inserted into the filter holes of the filter screen 5. The filter cylinder 1 is equipped with a pushing assembly, which pushes the filter screen 5 to move along the inner wall of the filter cylinder 1. The end of the first rotating rod 11 near the filter screen 5 is a telescopic structure. When the filter cylinder 1 is placed in the ambient water body, the water pump is started to draw water from the ambient water body through the water pipe 31. The water flows through the filter cylinder 1 into the sampling cylinder 2. When passing through the filter cylinder 1, the driving assembly drives the first rotating rod 11 to rotate. The scraper 12 rotates, scraping the side of the filter screen 5 in the ambient water, removing floating debris from the filter screen 5. When water flows into the filter cylinder 1, it drives the fan blade 14 to rotate, which in turn drives the second rotating rod 13 to rotate, thereby driving the fixed rod 15 to rotate. As the filter screen 5 moves inside the filter cylinder 1 under the action of the pushing component, the insert 16 on the fixed rod 15 irregularly cleans the filter holes of the filter screen 5, preventing the filter holes of the filter screen 5 from being blocked and affecting water intake. The setting of two filter cylinders 1 can improve water intake efficiency.

[0059] Furthermore, an annular groove 17 is provided on the inner wall of the filter cylinder 1, and a rotating block 51 is provided on the periphery of the filter screen 5. The rotating block 51 is rotatably disposed in the annular groove 17 and moves along its axial direction within the annular groove 17. A spring 52 is provided in the annular groove 17, and the two ends of the spring 52 are respectively connected to the annular groove 17 and the filter screen 5. A guide rod 53 is provided in the spring 52, and the guide rod 53 passes through the filter screen 5 and is slidably connected to the filter screen 5. Both ends of the guide rod 53 are fixed in the annular groove 17. A baffle 54 is provided on the periphery of the filter screen 5 near the scraper 12. The baffle 54 is annular and abuts against the inner wall of the filter cylinder 1.

[0060] Furthermore, the drive assembly includes a sealing shell 44, a motor 43, a driving bevel gear 41, and a driven bevel gear 42; the sealing shell 44 is located inside the connecting member 4, and both ends of the sealing shell 44 are connected to the filter cartridge 1; the driving bevel gear 41 and the driven bevel gear 42 are rotatably mounted inside the sealing shell 44; the driving bevel gear 41 and the driven bevel gear 42 are meshed together; one end of the first rotating rod 11 extends into the connecting member 4 and is connected to the driven bevel gear 42; the motor 43 is mounted on the sealing shell 44, and the output end of the motor 43 is connected to the driving bevel gear 41. The motor 43 drives the driving bevel gear 41 to rotate, thereby driving the two driven bevel gears 42 to rotate, thereby driving the first rotating rod 11 inside the two filter cartridges 1 to rotate.

[0061] Furthermore, the inner wall of the filter cylinder 1 is provided with a sliding groove 18 along the axial direction of the filter cylinder 1; the pushing assembly includes a moving rod 6; the moving rod 6 is connected to the filter screen 5, and the moving rod 6 is slidably disposed in the sliding groove 18; a first push block 61 is provided at one end of the moving rod 6 near the connecting member 4; the first push block 61 is disposed inside the filter cylinder 1, and the side of the first push block 61 near the filter screen 5 is set with an inclined surface; an auxiliary rod 63 is provided on the side of the first rotating rod 11, and a second push block 62 is provided on the auxiliary rod 63, and the side of the second push block 62 away from the filter screen 5 is set with an inclined surface. The first rotating rod 11 drives the auxiliary rod 63 to rotate, and the second push block 62 rotates accordingly. When passing under the first push block 61, the inclined surface of the second push block 62 contacts the inclined surface of the first push block 61, and pushes the first push block 61 to move upward. The first push block 61 drives the moving rod 6 to move upward, thereby driving the filter screen 5 to move.

[0062] The working principle of this utility model is as follows: The filter cartridge 1 is placed in the environmental water body where sampling is required. The water pipe 31 is a flexible water pipe, and its length can be selected as needed. A water pump is started to draw water from the environmental water body through the water pipe 31. The water flows through the filter cartridge 1 into the sampling cartridge 2. As the water passes through the filter cartridge 1, the motor 43 starts, driving the active bevel gear 41 to rotate, which in turn drives the two driven bevel gears 42 to rotate. This, in turn, drives the first rotating rod 11 inside the two filter cartridges 1 to rotate, thereby driving the scraper 12 to rotate and scrape the side of the filter screen 5 located in the environmental water body. Floating debris is scraped off the filter screen 5. At the same time, the first rotating rod 11 drives the auxiliary rod 63 to rotate, and the second push block 62 rotates accordingly. When passing under the first push block 61, the inclined surface of the second push block 62 contacts the inclined surface of the first push block 61 and pushes the first push block 61 to move upward. The first push block 61 drives the moving rod 6 to move upward, thereby driving the filter screen 5 to move in the annular groove 17 and squeeze the spring 52. When the second push block 62 disengages from the first push block 61, the spring 52 drives the filter screen 5 to vibrate, which can clean up some of the attached debris and ensure the filtration effect of the filter screen 5.

[0063] When water enters the filter cylinder 1, it drives the fan blade 14 to rotate. The fan blade 14 drives the second rotating rod 13 to rotate, which in turn drives the fixed rod 15 to rotate. When the filter screen 5 moves toward the second rotating rod 13, the insert block 16 on the fixed rod 15 irregularly cleans the filter holes of the filter screen 5 to prevent the filter holes of the filter screen 5 from being blocked. When the filter screen 5 rebounds, the insert block is disengaged from the filter screen 5 and squeezed out, and the fan blade 14 can continue to rotate. The reciprocating vibration of the filter screen 5 cleans the filter holes of the filter screen 5 irregularly, ensuring the filtration effect of the filter screen 5.

[0064] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An automatic impurity removal device for water sample pretreatment, comprising a sampling cylinder (2) and a filter cylinder (1), characterized in that: A water pump (3) is provided between the sampling tube (2) and the filter tube (1); The sampling cylinder (2) and the water pump (3), and the filter cylinder (1) and the water pump (3) are all connected by water pipes (31); A connector (4) is provided between the two filter cylinders (1), and a drive assembly is provided inside the connector (4); The filter cylinder (1) has a filter screen (5) inside its open end, and the filter screen (5) is slidably connected to the inner wall of the filter cylinder (1). The filter cylinder (1) is rotatably provided with a first rotating rod (11). One end of the first rotating rod (11) extends into the connector (4) and is connected to the drive assembly. The other end of the first rotating rod (11) passes through the filter screen (5) and is provided with a scraper (12). The side of the scraper (12) abuts against the side of the filter screen (5). The first rotating rod (11) is rotatably connected to the filter screen (5). A second rotating rod (13) is sleeved on the first rotating rod (11), and the second rotating rod (13) is rotatably connected to the first rotating rod (11); The second rotating rod (13) is provided with fan blades (14); The second rotating rod (13) has a fixing rod (15) on its side. The fixing rod (15) is located on the side of the filter screen (5) away from the scraper (12). The fixing rod (15) has multiple inserts (16). When the filter screen (5) moves into the filter cylinder (1), the inserts (16) are inserted into the filter holes of the filter screen (5). The filter cylinder (1) is provided with a pushing component, which pushes the filter screen (5) to move along the inner wall of the filter cylinder (1).

2. The automatic impurity removal device for water sample pretreatment according to claim 1, characterized in that: The filter cylinder (1) has an annular groove (17) on its inner wall, and the filter screen (5) has a rotating block (51) on its periphery. The rotating block (51) is rotatably disposed in the annular groove (17) and moves along its axial direction in the annular groove (17). A spring (52) is provided inside the annular groove (17), and the two ends of the spring (52) are connected to the annular groove (17) and the filter screen (5) respectively.

3. The automatic impurity removal device for water sample pretreatment according to claim 2, characterized in that: The spring (52) is provided with a guide rod (53), which passes through the filter screen (5) and is slidably connected to the filter screen (5); Both ends of the guide rod (53) are fixed in the annular groove (17).

4. The automatic impurity removal device for water sample pretreatment according to claim 1, characterized in that: The filter screen (5) has a baffle (54) on its periphery near the scraper (12). The baffle (54) is annular and abuts against the inner wall of the filter cylinder (1).

5. The automatic impurity removal device for water sample pretreatment according to any one of claims 1-4, characterized in that: The drive assembly includes a sealed housing (44), a motor (43), a driving bevel gear (41), and a driven bevel gear (42). The connector (4) has a sealing shell (44) inside, and both ends of the sealing shell (44) are connected to the filter cylinder (1); The sealing shell (44) is rotatably provided with a driving bevel gear (41) and a driven bevel gear (42); the driving bevel gear (41) and the driven bevel gear (42) are meshed together; The first rotating rod (11) extends into one end of the connector (4) and is connected to the driven bevel gear (42); The sealing shell (44) is equipped with a motor (43), and the output end of the motor (43) is connected to the drive bevel gear (41).

6. The automatic impurity removal device for water sample pretreatment according to claim 1, characterized in that: The inner wall of the filter cylinder (1) is provided with a groove (18) along the axial direction of the filter cylinder (1). The pushing assembly includes a movable rod (6); the movable rod (6) is connected to the filter screen (5), and the movable rod (6) is slidably disposed in the slide groove (18); The moving rod (6) is provided with a first push block (61) at one end near the connector (4); the first push block (61) is located inside the filter cylinder (1), and the side of the first push block (61) near the filter screen (5) is set with an inclined surface; The first rotating rod (11) has an auxiliary rod (63) on its side, and a second push block (62) is provided on the auxiliary rod (63). The side of the second push block (62) away from the filter screen (5) is set with an incline.

7. The automatic impurity removal device for water sample pretreatment according to claim 1, characterized in that: The end of the first rotating rod (11) near the filter screen (5) is a retractable structure.

8. The automatic impurity removal device for water sample pretreatment according to claim 1, characterized in that: The scraper (12) has a triangular cross-section on the side near the filter screen (5).

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