Ultrapure water pretreatment device

By introducing a connecting ring, top rod, U-shaped frame, and motor drive structure into the ultrapure water pretreatment device, the problem of difficult filter plate replacement was solved, enabling convenient replacement and cleaning of the filter plates and improving the practicality of the device.

CN224141633UActive Publication Date: 2026-04-21SHANGHAI WEIJING WATER TREATMENT ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI WEIJING WATER TREATMENT ENGINEERING CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing ultrapure water pretreatment devices, filter plates are difficult to replace, requiring operators to enter the chamber to perform the replacements, which is inconvenient.

Method used

A structure including a connecting ring, a top rod, a U-shaped frame, a first connecting rod, and a second connecting rod is designed. The filter plate is automatically lifted by a motor, which facilitates the replacement of the filter plate. A scraper brush is also provided for cleaning.

Benefits of technology

This enables convenient replacement and cleaning of the filter plates, improving the operability and maintenance efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water treatment devices, and discloses an ultrapure water pretreatment device which comprises a treatment barrel, the inner surface of the treatment barrel is movably sleeved with a filter plate, the lower surface of the filter plate is movably connected with a connecting ring, and the lower surface of the connecting ring is fixedly connected with an ejector rod. Through the arrangement of the connecting ring, the ejector rod, the U-shaped frame, the first connecting rod and the second connecting rod, when the first motor starts to operate, the driving shaft and the first connecting rod start to rotate, the other end of the first connecting rod drives the second connecting rod at the moment, and therefore the second connecting rod starts to rotate with the other end of the first connecting rod as the axis; meanwhile, the other end of the second connecting rod can drive a U-shaped frame, so that the whole U-shaped frame starts to move upwards, and finally, when the U-shaped frame is in contact with the treatment barrel, a connecting ring can move to the upper part of the treatment barrel, so that the replacement of the filter plate by an operator is greatly facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of water treatment device technology, and more specifically, to an ultrapure water pretreatment device. Background Technology

[0002] Ultrapure water is a highly pure water that has almost completely removed impurities. It contains no ions, organic matter, microorganisms, or particulate matter and is mainly used in fields with stringent water quality requirements, such as semiconductor manufacturing, biomedicine, and precision instruments. Its preparation is achieved through a multi-stage process, including pretreatment to remove suspended solids and organic matter, reverse osmosis membrane separation of dissolved impurities, ion exchange resin adsorption of residual ions, and ultraviolet sterilization and terminal filtration to eliminate microorganisms and particles. The preparation system integrates membrane separation, electrochemical purification, and other technologies. The high purity of ultrapure water can avoid equipment corrosion or product defects caused by contaminants during the production process, making it an important foundation for chip etching, pharmaceutical preparations, and laboratory analysis.

[0003] A search revealed a pretreatment mechanism for a reverse osmosis pure water machine with publication number CN221155748U. The background section addressed the issue of inconvenience in removing and replacing filter plates, as well as the difficulty in cleaning the internal components, resulting in low practicality. The proposed solution addressed this by incorporating a cover, a rotating rod (first and second), and a brush rod. However, because the filter plates are housed within a relatively large enclosure, operators often need to enter the enclosure to replace them, making the process extremely difficult. Therefore, improvements are needed. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing an ultrapure water pretreatment device.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An ultrapure water pretreatment device includes a treatment tank, a filter plate movably sleeved on the inner surface of the treatment tank, a connecting ring movably connected to the lower surface of the filter plate, a top rod fixedly connected to the lower surface of the connecting ring, the bottom end of the top rod penetrating the treatment tank and extending to the bottom of the treatment tank and fixedly connected to a U-shaped frame, an installation plate fixedly sleeved on the outer surface of the treatment tank, a first motor fixedly installed on the left side of the lower surface of the installation plate, a drive shaft fixedly sleeved on the other end of the output shaft of the first motor, a first connecting rod fixedly sleeved on the outer surface of the drive shaft, a second connecting rod hinged to the other end of the first connecting rod, and the bottom end of the second connecting rod hinged to the left surface of the U-shaped frame.

[0006] As a preferred embodiment of this utility model, a support column is fixedly connected to the lower surface of the mounting plate, a valve is fixedly connected to the lower surface of the processing tank, the top end of the valve penetrates through the processing tank and extends into the interior of the processing tank, and a liquid outlet pipe is fixedly connected to the lower surface of the valve.

[0007] As a preferred technical solution of this utility model, a ring is fixedly sleeved on the top of the outer surface of the treatment tank, a cover plate is movably connected to the upper surface of the ring, a water inlet pipe is fixedly connected to the upper surface of the cover plate, a bolt is movably connected to the upper surface of the cover plate, the bottom end of the bolt passes through the cover plate and the ring in sequence and extends to the bottom of the ring, and the outer surface of the bolt and the inner surface of the ring are threaded together.

[0008] As a preferred technical solution of this utility model, a second motor is fixedly installed on the upper surface of the cover plate, and a rotating shaft is fixedly sleeved on the other end of the output shaft of the second motor. The bottom end of the rotating shaft passes through the cover plate and extends into the interior of the processing tank and is fixedly connected to a scraper brush. The lower surface of the scraper brush is movably connected to the filter plate.

[0009] As a preferred embodiment of this utility model, sliding grooves are provided on the outer surfaces of both sides of the connecting ring. A first connecting plate located behind the sliding groove is fixedly connected to the lower surface of the connecting ring. An insert plate is fixedly connected to the lower surface of the filter plate. The outer surface of the insert plate and the inner surface of the sliding groove are movably connected. An insert block is movably connected to the inner surface of the sliding groove. The right end of the insert block passes through the insert plate and the first connecting plate in sequence and extends to the rear side of the first connecting plate.

[0010] As a preferred embodiment of this utility model, the outer surfaces of both sides of the insert block are fixedly connected to limit blocks, and the outer surfaces of the limit blocks and the inner surfaces of the sliding grooves are movably connected.

[0011] As a preferred embodiment of this utility model, a second connecting plate located in front of the sliding groove is fixedly connected to the lower surface of the connecting ring, a spring is fixedly connected to the rear surface of the second connecting plate, and the other end of the spring is fixedly connected to the front surface of the limiting block.

[0012] The beneficial effects of this utility model are as follows: By setting up a connecting ring, a top rod, a U-shaped frame, a first connecting rod, and a second connecting rod, when the first motor starts running, the drive shaft and the first connecting rod will start to rotate. At this time, the other end of the first connecting rod will drive the second connecting rod, thereby causing the second connecting rod to start rotating around the other end of the first connecting rod as its axis. At the same time, the other end of the second connecting rod will drive the U-shaped frame, thereby causing the U-shaped frame to start to move upward as a whole. Finally, when the U-shaped frame contacts the processing tank, the connecting ring will move to the top of the processing tank, which greatly facilitates the operator in replacing the filter plates. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a cross-sectional view of the side of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of the spring of this utility model;

[0017] Figure 5 This is a cross-sectional structural diagram of the block of this utility model;

[0018] Figure 6 for Figure 2 A magnified schematic diagram of the local structure at point A;

[0019] Figure 7 for Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Processing tank; 2. Filter plate; 3. Connecting ring; 4. Top rod; 5. U-shaped frame; 6. Motor No. 1; 7. Drive shaft; 8. Connecting rod No. 1; 9. Connecting rod No. 2; 10. Mounting plate; 11. Support column; 12. Valve; 13. Discharge pipe; 14. Cover plate; 15. Ring; 16. Bolt; 17. Inlet pipe; 18. Motor No. 2; 19. Rotating shaft; 20. Scraper brush; 21. Sliding groove; 22. Insert plate; 23. Connecting plate No. 1; 24. Insert block; 25. Limiting block; 26. Connecting plate No. 2; 27. Spring. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0025] like Figures 1 to 7 As shown, this utility model provides an ultrapure water pretreatment device, including a treatment tank 1. A filter plate 2 is movably sleeved on the inner surface of the treatment tank 1. A connecting ring 3 is movably connected to the lower surface of the filter plate 2. A top rod 4 is fixedly connected to the lower surface of the connecting ring 3. The bottom end of the top rod 4 passes through the treatment tank 1 and extends to the bottom of the treatment tank 1, and is fixedly connected to a U-shaped frame 5. An installation plate 10 is fixedly sleeved on the outer surface of the treatment tank 1. A No. 1 motor 6 is fixedly installed on the left side of the lower surface of the installation plate 10. The other end of the output shaft of the No. 1 motor 6... A drive shaft 7 is fixedly sleeved, and a first connecting rod 8 is fixedly sleeved on the outer surface of the drive shaft 7. The other end of the first connecting rod 8 is hinged to a second connecting rod 9, and the bottom end of the second connecting rod 9 is hinged to the left surface of the U-shaped frame 5. When the operator starts the first motor 6, the drive shaft 7 and the first connecting rod 8 will start to rotate. At this time, the other end of the first connecting rod 8 will drive the second connecting rod 9, thereby causing the second connecting rod 9 to start to rotate. The other end of the second connecting rod 9 will then drive the U-shaped frame 5, thereby causing the U-shaped frame 5 to move upward as a whole.

[0026] The mounting plate 10 has a support column 11 fixedly connected to its lower surface, and a valve 12 fixedly connected to its lower surface. The top of the valve 12 penetrates the treatment tank 1 and extends into the interior of the treatment tank 1. An outlet pipe 13 is fixedly connected to the lower surface of the valve 12. The support column 11 is designed to support the entire treatment tank 1. When the valve 12 is opened, the treated water inside the treatment tank 1 enters the outlet pipe 13 through the valve 12, and then enters the next treatment device through the outlet pipe 13.

[0027] The treatment tank 1 has a ring 15 fixedly fitted to the top of its outer surface. A cover plate 14 is movably connected to the upper surface of the ring 15. A water inlet pipe 17 is fixedly connected to the upper surface of the cover plate 14. A bolt 16 is movably connected to the upper surface of the cover plate 14. The bottom end of the bolt 16 passes through the cover plate 14 and the ring 15 and extends to the bottom of the ring 15. The outer surface of the bolt 16 and the inner surface of the ring 15 are threaded together. The design of the water inlet pipe 17 allows untreated water to enter the interior of the treatment tank 1 through the water inlet pipe 17. The design of the bolt 16 serves to fix the cover plate 14 above the ring 15.

[0028] The cover plate 14 is fixedly mounted with a second motor 18. The other end of the output shaft of the second motor 18 is fixedly sleeved with a rotating shaft 19. The bottom end of the rotating shaft 19 passes through the cover plate 14 and extends into the interior of the treatment tank 1, and is fixedly connected to a scraper brush 20. The lower surface of the scraper brush 20 is movably connected to the filter plate 2. When the second motor 18 is started, the rotating shaft 19 and the scraper brush 20 will start to rotate. The rotation of the scraper brush 20 will clean the filter plate 2, thereby ensuring that water can pass through the filter plate 2 to the bottom of the filter plate 2.

[0029] The connecting ring 3 has sliding grooves 21 on both sides of its outer surface. A first connecting plate 23 located behind the sliding groove 21 is fixedly connected to the lower surface of the connecting ring 3. An insert plate 22 is fixedly connected to the lower surface of the filter plate 2. The outer surface of the insert plate 22 is movably connected to the inner surface of the sliding groove 21. An insert block 24 is movably connected to the inner surface of the sliding groove 21. The right end of the insert block 24 passes through the insert plate 22 and the first connecting plate 23 in sequence and extends to the rear side of the first connecting plate 23. The design of the insert block 24, the first connecting plate 23 and the insert plate 22 makes the insert plate 22 fixed between the insert block 24 and the first connecting plate 23, thereby fixing the filter plate 2 as a whole above the connecting ring 3.

[0030] Among them, the outer surfaces of the left and right sides of the insertion block 24 are fixedly connected to the limiting blocks 25, and the outer surface of the limiting blocks 25 is movably connected to the inner surface of the sliding groove 21. When the insertion block 24 begins to move along the inner surface of the sliding groove 21, the design of the limiting blocks 25 makes the insertion block 24 only able to move back and forth, thereby achieving the function of limiting the movement direction of the insertion block 24.

[0031] The lower surface of the connecting ring 3 is fixedly connected to the second connecting plate 26 located in front of the sliding groove 21. The rear surface of the second connecting plate 26 is fixedly connected to the spring 27. The other end of the spring 27 is fixedly connected to the front surface of the limiting block 25. The design of the spring 27 allows the limiting block 25 to move automatically to the right under the elastic force of the spring 27, thereby enabling the insert 24 to be automatically inserted into the inner surface of the insert plate 22.

[0032] Working principle and usage process of this utility model:

[0033] When the operator needs to replace the filter plate 2, the operator first removes the cover plate 14 as a whole, and then starts the first motor 6. As the first motor 6 runs, the drive shaft 7 and the first connecting rod 8 will start to rotate, and the second connecting rod 9 will rotate along with the rotation of the first connecting rod 8. At the same time, the other end of the second connecting rod 9 will drive the U-shaped frame 5, thereby causing the U-shaped frame 5 to start to move upward. Finally, the filter plate 2 and the connecting ring 3 will move to the top of the treatment tank 1.

[0034] At this time, the operator pulls the insert block 24, causing the insert block 24 to detach from the inner surface of the insert plate 22. At this time, the fixing of the insert plate 22 and the filter plate 2 as a whole will be released. The operator can then directly pull out the old filter plate 2 and insert the insert plate 22 of the new filter plate 2 into the space between the insert block 24 and the first connecting plate 23. Then the operator releases the insert block 24, and the insert block 24 will automatically insert into the inner surface of the new insert plate 22 under the elastic force of the spring 27, thereby realizing the convenient disassembly and replacement of the filter plate 2.

[0035] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An ultrapure water pre-treatment device comprising a treatment tank (1), characterized in that: The inner surface of the processing tank (1) is movably fitted with a filter plate (2), the lower surface of the filter plate (2) is movably connected with a connecting ring (3), the lower surface of the connecting ring (3) is fixedly connected with a top rod (4), the bottom end of the top rod (4) passes through the processing tank (1) and extends to the bottom of the processing tank (1) and is fixedly connected with a U-shaped frame (5), the outer surface of the processing tank (1) is fixedly fitted with an installation plate (10), a first motor (6) is fixedly installed on the left side of the lower surface of the installation plate (10), the other end of the output shaft of the first motor (6) is fixedly fitted with a drive shaft (7), the outer surface of the drive shaft (7) is fixedly fitted with a first connecting rod (8), the other end of the first connecting rod (8) is hinged with a second connecting rod (9), the bottom end of the second connecting rod (9) is hinged to the left surface of the U-shaped frame (5).

2. The apparatus for producing ultrapure water according to claim 1, wherein: The lower surface of the mounting plate (10) is fixedly connected to a support column (11), and the lower surface of the treatment tank (1) is fixedly connected to a valve (12). The top of the valve (12) penetrates the treatment tank (1) and extends into the interior of the treatment tank (1). The lower surface of the valve (12) is fixedly connected to an outlet pipe (13).

3. The apparatus for producing ultrapure water according to claim 1, wherein: A ring (15) is fixedly sleeved on the top of the outer surface of the treatment tank (1). A cover plate (14) is movably connected to the upper surface of the ring (15). A water inlet pipe (17) is fixedly connected to the upper surface of the cover plate (14). A bolt (16) is movably connected to the upper surface of the cover plate (14). The bottom end of the bolt (16) passes through the cover plate (14) and the ring (15) in sequence and extends to the bottom of the ring (15). The outer surface of the bolt (16) and the inner surface of the ring (15) are threaded together.

4. The apparatus for producing ultrapure water according to claim 3, wherein: A second motor (18) is fixedly installed on the upper surface of the cover plate (14). A rotating shaft (19) is fixedly sleeved on the other end of the output shaft of the second motor (18). The bottom end of the rotating shaft (19) passes through the cover plate (14) and extends into the interior of the processing tank (1) and is fixedly connected to a scraper brush (20). The lower surface of the scraper brush (20) is movably connected to the filter plate (2).

5. The apparatus for producing ultrapure water according to claim 1, wherein: The outer surfaces of the left and right sides of the connecting ring (3) are provided with sliding grooves (21). The lower surface of the connecting ring (3) is fixedly connected to a first connecting plate (23) located behind the sliding groove (21). The lower surface of the filter plate (2) is fixedly connected to an insert plate (22). The outer surface of the insert plate (22) and the inner surface of the sliding groove (21) are movably connected. The inner surface of the sliding groove (21) is movably connected to an insert block (24). The right end of the insert block (24) passes through the insert plate (22) and the first connecting plate (23) in sequence and extends to the rear side of the first connecting plate (23).

6. The apparatus for producing ultrapure water according to claim 5, wherein: Limiting blocks (25) are fixedly connected to the outer surfaces of both sides of the insert (24), and the outer surface of the limiting block (25) is movably connected to the inner surface of the sliding groove (21).

7. The apparatus for producing ultrapure water according to claim 1, wherein: The lower surface of the connecting ring (3) is fixedly connected with a No. 2 connecting plate (26) located at the front side of the sliding groove (21), the rear surface of the No. 2 connecting plate (26) is fixedly connected with a spring (27), and the other end of the spring (27) is fixedly connected with the front surface of the limiting block (25).

Citation Information

Patent Citations

  • Pretreatment mechanism of reverse osmosis water purifier

    CN221155748U