Filtering equipment suitable for water quality sample containing heavy metal

Abstract

The utility model provides filtering equipment suitable for water quality samples containing heavy metals, and relates to the technical field of water quality sample filtering, the filtering equipment comprises a filtering box, the top of the filtering box is fixedly connected with a feeding pipe, and the top of the feeding pipe is symmetrically provided with limiting grooves. According to the utility model, through the rotation of the filter frame, under the action of the solid area at the bottom of the filter frame and the partition plate, one cavity is closed, a water quality sample enters the other cavity after being preliminarily filtered through the filter holes in the filter frame, and then a negative pressure environment is formed in the cavity by starting the micro negative pressure pump; the speed of a water quality sample passing through the ultrafiltration membrane body is increased, and the filtering effect is improved, so that the filtering path can be flexibly adjusted according to the water quality sample, the water quality sample is filtered through the proper ultrafiltration membrane body, complex and changeable water sample components are effectively dealt with, and it is guaranteed that the better filtering quality can be achieved for various water samples containing heavy metal.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality sample filtration technical field especially suitable for water quality sample filtration equipment of containing heavy metal. BACKGROUND

[0002] When detecting water quality, the water quality sample is first treated, impurities affecting the water sample detection are filtered out, the accuracy of water sample detection is improved, suspended particulate matters in the water quality sample need to be removed, including silt, organic matter fragments and the like, if the particulate matters are not removed, interference will be caused when detecting heavy metals.

[0003] In the prior art, when filtering the water quality sample containing heavy metals, the filtering is usually carried out by using an ultrafiltration membrane filter core, but the components of the water sample containing heavy metals from different sources are quite different, the filter core size of the existing filtering equipment is single, the filtering quality is reduced because the filtering equipment cannot be flexibly adjusted according to different water samples. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of water quality sample filtration equipment suitable for containing heavy metal, which solves the problem that in the prior art, when filtering the water quality sample containing heavy metals, the filtering is usually carried out by using an ultrafiltration membrane filter core, but the components of the water sample containing heavy metals from different sources are quite different, the filtering quality is reduced because the filtering equipment cannot be flexibly adjusted according to different water samples.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of water quality sample filtration equipment suitable for containing heavy metal, including filter box, the top of the filter box is fixedly connected with feed pipe, the top of the feed pipe is symmetrically provided with limiting slot, filter frame is arranged between the inner surfaces of the two limiting slots, a plurality of filter holes are arranged in the inner bottom of the filter frame, the outer surface of the feed pipe is threadedly connected with sealing cover, the top of the sealing cover is installed with swivel joint, the top of the swivel joint is fixedly connected with hose, the top of the filter box is fixedly connected with micro negative pressure pump, the inner surface of the filter box is fixedly connected with partition plate, the outer surface of the both sides of the filter box is provided with mounting groove, the inner surfaces of the two mounting grooves are both inserted with mounting frame, and the inner surfaces of the two mounting frames are both provided with ultrafiltration membrane body.

[0006] Preferably, the output end of the micro negative pressure pump is fixedly connected with one end of the hose, and the front surface of the filter box is fixedly connected with water outlet pipe.

[0007] Preferably, the outer surfaces of the both sides of the filter box are both threadedly connected with a plurality of hand bolts, and the plurality of hand bolts are matched with the two mounting frames.

[0008] Preferably, an anti-loss rope is rotatably connected to the outer surface of each of the plurality of hand-tightened bolts, and the end of each of the plurality of anti-loss ropes away from the hand-tightened bolts is fixedly connected to the outer surface of the filter box.

[0009] Preferably, the front surface of the filter box is provided with an observation window.

[0010] Preferably, a connecting rod is fixedly connected to the inner surface of the filter frame, and the bottom of the filter frame is in contact with the top of the partition plate.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, by rotating the filter frame, one of the chambers is sealed by the solid area at the bottom and the partition plate. The water sample is initially filtered through the filter holes in the filter frame and then enters the other chamber. Then, by activating the micro negative pressure pump, a negative pressure environment is created in the chamber, which speeds up the passage of the water sample through the ultrafiltration membrane body and improves the filtration effect. Thus, the filtration path can be flexibly adjusted according to the water sample, so that the water sample passes through the appropriate ultrafiltration membrane body for filtration. This effectively copes with complex and varied water sample compositions and ensures good filtration quality for various water samples containing heavy metals.

[0013] 2. In this utility model, when the hand-tightening bolt is rotated out of the filter box, the loss of the hand-tightening bolt is reduced by the anti-loss rope. Moreover, the other end of the anti-loss rope is not on the same side as the mounting bracket. Under the action of weight, the hand-tightening bolt will be vertically suspended on the other side and will not affect the subsequent installation. Attached Figure Description

[0014] Figure 1 This is a perspective view of a water sample filtration device containing heavy metals proposed in this utility model;

[0015] Figure 2 This is an unfolded diagram of a water sample filtration device containing heavy metals proposed in this utility model;

[0016] Figure 3 This is a cross-sectional view of a water sample filtration device containing heavy metals proposed in this utility model;

[0017] Figure 4 This is a partial structural schematic diagram of a water sample filtration device for heavy metals proposed in this utility model.

[0018] Legend: 1. Filter box; 2. Miniature negative pressure pump; 3. Hose; 4. Rotary joint; 5. Sealing cap; 6. Observation window; 7. Mounting bracket; 8. Hand-tightening bolt; 9. Anti-loss rope; 10. Feed pipe; 11. Limiting groove; 12. Filter frame; 13. Connecting rod; 14. Filter hole; 15. Divider plate; 16. Mounting groove; 17. Ultrafiltration membrane body; 18. Sealing gasket; 19. Water outlet pipe. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, as Figure 1 - Figure 4 As shown, this utility model provides a filtration device for water samples containing heavy metals, including a filter box 1. A feed pipe 10 is fixedly connected to the top of the filter box 1. Symmetrical limiting grooves 11 are formed on the top of the feed pipe 10. A filter frame 12 is arranged between the inner surfaces of the two limiting grooves 11. Multiple filter holes 14 are formed on the inner bottom of the filter frame 12. A sealing cap 5 is threaded onto the outer surface of the feed pipe 10. A rotary joint 4 is installed on the top of the sealing cap 5. A flexible hose 3 is fixedly connected to the top of the rotary joint 4. A miniature negative pressure pump 2 is fixedly connected to the top of the filter box 1. A partition plate 15 is fixedly connected to the inner surface of the filter box 1. The filter box 1 has mounting grooves 16 on both outer surfaces. Mounting brackets 7 are inserted into the inner surfaces of the two mounting grooves 16. Ultrafiltration membrane bodies 17 are installed on the inner surfaces of the two mounting brackets 7. The output end of the micro negative pressure pump 2 is fixedly connected to one end of the hose 3. The water outlet pipes 19 are symmetrically fixedly connected to the front surface of the filter box 1. Multiple hand-tightening bolts 8 are threadedly connected to both outer surfaces of the filter box 1. The multiple hand-tightening bolts 8 cooperate with the two mounting brackets 7. The front surface of the filter box 1 has an observation window 6. The inner surface of the filter frame 12 is fixedly connected to a connecting rod 13. The bottom of the filter frame 12 is attached to the top of the partition plate 15.

[0022] The overall effect of Embodiment 1 is that the pore sizes of the two ultrafiltration membrane bodies 17 are large and small, and the partition plate 15 divides the filter box 1 into two independent chambers. When water samples need to be filtered using the small-pore ultrafiltration membrane body 17, the filter frame 12 can be removed from the feed pipe 10 and rotated 90 degrees via the connecting rod 13, and then installed into the feed pipe 10 along the limiting groove 11. Therefore, the filter frame 12, through the solid area at the bottom and the action of the partition plate 15, seals one of the chambers. After the water sample is added to the filter frame 12 through the feed pipe 10 and undergoes preliminary filtration through the filter holes 14 in the filter frame 12, it enters another chamber. Then, the sealing cap 5 is connected to the feed pipe 10, and the rotary joint 4 eliminates motion interference. Next, by activating the micro negative pressure pump 2, a negative pressure environment is created in the chamber through the hose 3, accelerating the passage of the water sample through the ultrafiltration membrane body 17. The sample is then discharged through the outlet pipe 19, improving the filtration effect. Simultaneously, when needed... When using the large-pore ultrafiltration membrane body 17, the filter frame 12 can be reset, allowing for flexible adjustment of the filtration path according to the water sample. This ensures that the water sample passes through the appropriate ultrafiltration membrane body 17 for filtration, effectively addressing complex and varied water sample compositions and guaranteeing good filtration quality for various water samples containing heavy metals. Simultaneously, the sealing cap 5 is threadedly connected to the feed pipe 10, and with the help of the connecting rod 13, it facilitates cleaning and repositioning of the filter frame 12. After filtration, the status of the ultrafiltration membrane body 17 can be observed in real time through the observation window 6. When replacement is needed, the mounting bracket 7 can be pulled out of the mounting groove 16 by unscrewing the hand-tightening bolt 8 from the filter box 1. During installation, the mounting bracket 7 is inserted along the mounting groove 16, and the hand-tightening bolt 8 is inserted along the through hole of the mounting bracket 7 before being inserted into the filter box 1. Simultaneously, the outer sealing gasket 18 is deformed by compression after installation, filling the seal between the mounting bracket 7 and the mounting groove 16, ensuring installation stability.

[0023] Example 2, as Figure 1 - Figure 4 As shown, anti-loss ropes 9 are rotatably connected to the outer surfaces of multiple hand-tightened bolts 8, and the ends of the multiple anti-loss ropes 9 away from the hand-tightened bolts 8 are fixedly connected to the outer surface of the filter box 1.

[0024] The effect achieved by the entire embodiment 2 is that when the hand-tightening bolt 8 is rotated out of the filter box 1, the loss of the hand-tightening bolt 8 is reduced by the anti-loss rope 9, and the other end of the anti-loss rope 9 is not on the same side as the mounting bracket 7. Under the action of weight, the hand-tightening bolt 8 will be vertically suspended on the other side and will not affect the subsequent installation.

[0025] Working Principle: When a water sample needs to be filtered using a small-pore ultrafiltration membrane body 17, the filter frame 12 can be removed from the feed pipe 10 and rotated 90 degrees via the connecting rod 13. It is then installed into the feed pipe 10 along the limiting groove 11. Thus, the filter frame 12, through the solid area at the bottom and the partition plate 15, seals one of the chambers. The water sample is then added to the filter frame 12 through the feed pipe 10. After preliminary filtration through the filter holes 14 in the filter frame 12, the sample enters the other chamber. The sealing cap 5 is then connected to the feed pipe 10, and the rotating joint 4 eliminates movement interference. The micro negative pressure pump 2 is then activated to create a negative pressure environment in the chamber, accelerating the passage of the water sample through the ultrafiltration membrane body 17. The sample is then discharged through the outlet pipe 19, improving the filtration effect. When a large-pore ultrafiltration membrane body 17 is needed, the filter frame 12 can be reset, allowing for flexible adjustment based on the water sample. The filtration path allows water samples to pass through a suitable ultrafiltration membrane body 17 for filtration, effectively handling complex and varied water sample compositions, thus ensuring good filtration quality for various water samples containing heavy metals. Simultaneously, the sealing cap 5 is threadedly connected to the feed pipe 10, and with the help of the connecting rod 13, it facilitates the cleaning and repositioning of the filter frame 12. After filtration, the status of the ultrafiltration membrane body 17 can be observed in real time through the observation window 6. When replacement is needed, the mounting bracket 7 can be pulled out of the mounting groove 16 by unscrewing the hand-tightening bolt 8 from the filter box 1 and using the anti-loss rope 9 to reduce the loss of the hand-tightening bolt 8. During installation, the mounting bracket 7 is inserted along the mounting groove 16, the hand-tightening bolt 8 is inserted along the through hole of the mounting bracket 7, and then it is rotated into the filter box 1. Simultaneously, the outer sealing gasket 18 is deformed by compression after installation, filling the seal between the mounting bracket 7 and the mounting groove 16, ensuring the stability of the installation.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A filtration device suitable for use with a water quality sample containing heavy metals, characterized by: The utility model relates to a filter box (1), the top of filter box (1) is fixedly connected with feed pipe (10), the top of feed pipe (10) is opened with limit slot (11) symmetry, be provided with filter frame (12) between the inner surface of two limit slot (11), the inner bottom of filter frame (12) is opened with a plurality of filter hole (14), the outer surface of feed pipe (10) is threadedly connected with sealing cover (5), the top of sealing cover (5) is installed with swivel joint (4), the top of swivel joint (4) is fixedly connected with hose (3), the top of filter box (1) is fixedly connected with micro negative pressure pump (2), the inner surface of filter box (1) is fixedly connected with partition (15), the both sides outer surface of filter box (1) are all opened with mounting groove (16), the inner surface of two mounting groove (16) are all inserted with mounting bracket (7), and the inner surface of two mounting bracket (7) are all provided with ultrafiltration membrane body (17).

2. The filtration device suitable for water quality samples containing heavy metals according to claim 1, characterized in that: The output end of the micro negative pressure pump (2) is fixedly connected with one end of the hose (3), and the front surface of the filter box (1) is fixedly connected with the water outlet pipe (19).

3. The filtration device suitable for water quality samples containing heavy metals according to claim 1, characterized in that: The both sides outer surface of the filter box (1) are all threadedly connected with a plurality of hand screws (8), and the plurality of hand screws (8) are matched with the two mounting brackets (7).

4. The filtration device suitable for use with a water quality sample containing heavy metals of claim 3, wherein: The outer surface of the plurality of hand screws (8) is rotatably connected with the anti-lost rope (9), and the end away from the hand screw (8) of the plurality of anti-lost ropes (9) is fixedly connected with the outer surface of the filter box (1).

5. The filtration device suitable for use with heavy metal containing water quality samples of claim 1, wherein: The front surface of the filter box (1) is provided with the observation window (6).

6. The filtration device suitable for use with heavy metal containing water quality samples of claim 1, wherein: The inner surface of the filter frame (12) is fixedly connected with the connecting rod (13), and the bottom of the filter frame (12) is attached to the top of the partition (15).

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