An integrated RO reverse osmosis EDI ultrapure water system
By introducing a fixed support, a movable tank, and a threaded connection structure into the EDI ultrapure water equipment, the problem of requiring multiple people to replace the RO reverse osmosis membrane has been solved, enabling convenient replacement by a single person and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU CHENXING ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-05-26
AI Technical Summary
In existing EDI ultrapure water equipment, replacing the RO reverse osmosis membrane requires the cooperation of multiple personnel, which leads to inconvenience in operation and affects work efficiency.
An integrated RO reverse osmosis EDI ultrapure water device was designed. Through a fixed bracket, a movable tank, a connecting rod, a connecting plate, and a threaded connection structure, it enables a single person to easily replace the reverse osmosis membrane. The movable tank restricts the direction of the connecting rod, and the connecting plate drives the connecting ring and nut to rotate, simplifying the membrane disassembly process.
It enables a single person to easily replace the reverse osmosis membrane, improving replacement efficiency, reducing manpower requirements, and simplifying the operation process.
Smart Images

Figure CN224279868U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pure water equipment technology, and in particular to an EDI ultrapure water equipment integrating RO reverse osmosis. Background Technology
[0002] RO EDI ultrapure water equipment is a device that produces high-purity water by combining reverse osmosis (RO) technology and electrodeionization (EDI) technology. The system can stably output ultrapure water that meets industrial needs through a water quality monitor function. The system consists of a pretreatment unit, a reverse osmosis unit, an EDI module, and a water quality monitor.
[0003] In the prior art, Chinese patent CN222886708U discloses an EDI ultrapure water device. An ultraviolet lamp uniformly sterilizes the stirred water, which then flows through a guide pipe to a filter housing. The water then permeates through a second activated carbon filter in a second slot inside the filter housing. The filter material inside the second activated carbon filter performs three filtrations on the water before it flows out through a water intake pipe. However, in practical applications, the RO reverse osmosis membrane in the reverse osmosis unit of the EDI ultrapure water device needs to be replaced after a period of use. The RO reverse osmosis membrane used in the EDI ultrapure water device is relatively large, and its replacement requires smooth removal from the reverse osmosis unit. This necessitates the cooperation of multiple personnel to replace the RO reverse osmosis membrane, making the replacement operation inconvenient and affecting the work efficiency of the staff. Therefore, we disclose an EDI ultrapure water device integrating RO reverse osmosis. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose an integrated RO reverse osmosis EDI ultrapure water equipment to solve the problem that it requires multiple staff members to work together to replace the RO reverse osmosis membrane, making the replacement operation of the RO reverse osmosis membrane inconvenient.
[0005] Based on the above objectives, this utility model provides an integrated RO reverse osmosis EDI ultrapure water device, including a fixed support. A plurality of reverse osmosis membrane tanks are fixedly connected to the upper end of the fixed support. A movable tank is fixedly connected to the outer wall of each reverse osmosis membrane tank. A connecting rod is slidably connected to the inner cavity of the movable tank. A connecting frame is provided at one end of the connecting rod extending outside the movable tank. A connecting plate is fixedly connected to one side of the connecting frame. A connecting ring is fixedly connected to one side of the connecting plate. A fixed ring is movably fitted inside the inner cavity of the connecting ring. A first connecting pipe is fixedly connected to the inner cavity of the fixed ring. One end of the first connecting pipe is fixedly connected to a reverse osmosis membrane body. A second threaded groove is formed at one end of the connecting rod extending outside the movable tank. A second nut is threadedly connected to the outer side of the second threaded groove. A first threaded groove is formed at one end of the first connecting pipe. A first nut and a second connecting pipe are threadedly connected to both sides of the first threaded groove, respectively. The first nut is located between the connecting ring and the second connecting pipe.
[0006] Preferably, two movable buckets are fixedly connected to the outer wall of the reverse osmosis membrane tank, and the two movable buckets are symmetrically distributed with the transverse central axis of the reverse osmosis membrane tank as the center.
[0007] Preferably, a buffer pad is fixedly connected to the bottom of one end of the movable bucket, and the buffer pad is in contact with one end of the connecting rod.
[0008] Preferably, the outer wall of the fixing ring is a regular polygon, and the inner cavity of the connecting ring is a regular polygon.
[0009] Preferably, the connecting frame is a hollow arc shape, and the center of the connecting frame is on the same horizontal line as the center of the first connecting pipe.
[0010] Preferably, the reverse osmosis membrane body is slidably connected inside the reverse osmosis membrane tank, and a retaining spring is movably engaged with the inner wall of the reverse osmosis membrane tank, the retaining spring being in contact with the reverse osmosis membrane body.
[0011] Preferably, both the second nut and the first nut have anti-slip ridges fixedly connected to their outer walls. The diameter of the outer wall of the second nut is greater than the width of the connecting bracket, and the diameter of the outer wall of the first nut is greater than the diameter of the outer wall of the connecting ring.
[0012] The beneficial effects of this utility model are as follows: By restricting the movement direction of the connecting rod by the moving bucket, when the operator replaces the reverse osmosis membrane body, the first connecting pipe and the second connecting pipe are disconnected first. Then, the connecting plate is pulled to move the connecting ring away from the reverse osmosis membrane box. When the connecting plate moves, the first connecting pipe and the reverse osmosis membrane body are moved away from the reverse osmosis membrane box by pushing the first nut. At the same time, the connecting plate moves the connecting rod along the moving bucket away from the reverse osmosis membrane box through the connecting frame and the second nut. This restricts the position of the reverse osmosis membrane body when it moves away from the reverse osmosis membrane box, so that the reverse osmosis membrane body can be moved out of the reverse osmosis membrane box relatively smoothly by only one operator. This makes the reverse osmosis membrane body easy to replace and improves the efficiency of operators replacing multiple reverse osmosis membrane bodies.
[0013] The connecting ring can drive the fixed ring to rotate, which in turn drives the first connecting tube and the reverse osmosis membrane body to rotate. When the connecting plate drives the first connecting tube to rotate, the connecting frame moves along the connecting rod. This allows the operator to rotate the reverse osmosis membrane body and pull it away from the reverse osmosis membrane box when initially moving the reverse osmosis membrane body out of the reverse osmosis membrane box, making it easier to remove the reverse osmosis membrane body from the reverse osmosis membrane box. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of an embodiment of the present utility model;
[0016] Figure 2 This is a partially cutaway three-dimensional structural diagram of the mobile bucket of this utility model;
[0017] Figure 3 This is a partially cutaway three-dimensional structural diagram of the connecting ring of this utility model.
[0018] The diagram is marked as follows:
[0019] 1. Fixed bracket; 2. Reverse osmosis membrane box; 3. Moving tank; 4. Connecting rod; 5. Connecting frame; 6. Connecting plate; 7. Connecting ring; 8. Fixing ring; 9. First connecting pipe; 10. Reverse osmosis membrane body; 11. First threaded groove; 12. First nut; 13. Second connecting pipe; 14. Second threaded groove; 15. Second nut; 16. Buffer pad. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0022] like Figures 1-3As shown, an integrated RO reverse osmosis EDI ultrapure water device includes a fixed support 1. Several reverse osmosis membrane tanks 2 are fixedly connected to the upper end of the fixed support 1. A movable tank 3 is fixedly connected to the outer wall of the reverse osmosis membrane tank 2. A connecting rod 4 is slidably connected to the inner cavity of the movable tank 3. A connecting frame 5 is provided at one end of the connecting rod 4 extending outside the movable tank 3. A connecting plate 6 is fixedly connected to one side of the connecting frame 5. A connecting ring 7 is fixedly connected to one side of the connecting plate 6. A fixed ring 8 is movably sleeved inside the inner cavity of the connecting ring 7. A first connecting pipe 9 is fixedly connected to the inner cavity of the fixed ring 8. One end of the first connecting pipe 9 is fixedly connected to a reverse osmosis membrane body 10. A second threaded groove 14 is opened at one end of the connecting rod 4 extending outside the movable tank 3. A second threaded groove 14 is threadedly connected to the outer side of the second threaded groove 14. Nut 15, a first threaded groove 11 is opened at one end of the first connecting pipe 9, and a first nut 12 and a second connecting pipe 13 are threadedly connected to both sides of the first threaded groove 11 respectively. The first nut 12 is located between the connecting ring 7 and the second connecting pipe 13. Two movable barrels 3 are fixedly connected to the outer wall of the reverse osmosis membrane tank 2. The two movable barrels 3 are symmetrically distributed with the transverse central axis of the reverse osmosis membrane tank 2 as the center. A buffer pad 16 is fixedly connected to the bottom of one end of the movable barrel 3. The buffer pad 16 is attached to one end of the connecting rod 4. The reverse osmosis membrane body 10 is slidably connected inside the reverse osmosis membrane tank 2. A retaining spring is movably engaged with the inner wall of the reverse osmosis membrane tank 2. The retaining spring is attached to the reverse osmosis membrane body 10. In use, several reverse osmosis membrane tanks 2 are fixedly connected to the upper end of the fixed bracket 1, so that the fixed bracket 1 can be fixedly connected to the upper end of the fixed bracket 1. The bracket 1 fixes the position of the reverse osmosis membrane tank 2. A movable tank 3 is fixedly connected to the outer wall of the reverse osmosis membrane tank 2. A connecting rod 4 is slidably connected to the inner cavity of the movable tank 3, which fixes the position of the reverse osmosis membrane tank 2 and restricts the movement direction of the connecting rod 4. A connecting frame 5 is provided at one end of the connecting rod 4 extending to the outside of the movable tank 3. A connecting plate 6 is fixedly connected to one side of the connecting frame 5, and a connecting ring 7 is fixedly connected to one side of the connecting plate 6. A fixing ring 8 is movably sleeved in the inner cavity of the connecting ring 7. A first connecting pipe 9 is fixedly connected to the inner cavity of the fixing ring 8. One end of the first connecting pipe 9 is fixedly connected to the reverse osmosis membrane body 10, so that the first connecting pipe 9 and the reverse osmosis membrane body 10 are relatively fixed, and the connecting frame 5, the connecting plate 6, and the connecting ring 7 are relatively fixed. The connecting rod 4 is fixed, thus restricting the movement of the connecting frame 5. A second threaded groove 14 is formed at one end of the connecting rod 4 extending outside the movable barrel 3. A second nut 15 is threaded to the outer side of the second threaded groove 14, thus restricting the position of the connecting rod 4 and the connecting frame 5 after connection, thereby limiting the relative position of the connecting rod 4 and the connecting frame 5. A first threaded groove 11 is formed at one end of the first connecting pipe 9. A first nut 12 and a second connecting pipe 13 are threaded to both sides of the first threaded groove 11, respectively. The first nut 12 is located between the connecting ring 7 and the second connecting pipe 13, thus restricting the position of the connecting ring 7 and the fixed ring 8 after connection, thereby limiting the position of the connecting ring 7 and the first connecting pipe 9 after connection.When replacing the reverse osmosis membrane body 10, the operator first disconnects the first connecting pipe 9 and the second connecting pipe 13. Then, the operator pulls the connecting plate 6, causing the connecting ring 7 to move away from the reverse osmosis membrane tank 2. As the connecting plate 6 moves, it pushes the first nut 12, causing the first connecting pipe 9 and the reverse osmosis membrane body 10 to move away from the reverse osmosis membrane tank 2. Simultaneously, the connecting plate 6, through the connecting bracket 5 and the second nut 15, causes the connecting rod 4 to move along the moving bucket 3 away from the reverse osmosis membrane tank 2. This restricts the position of the reverse osmosis membrane body 10 as it moves away from the reverse osmosis membrane tank 2, allowing the reverse osmosis membrane body 10 to be moved relatively smoothly out of the reverse osmosis membrane tank 2 with only one operator. This makes the reverse osmosis membrane body 10 easier to replace and improves the efficiency of replacing multiple reverse osmosis membrane bodies 10. To improve efficiency, two movable buckets 3 are fixedly connected to the outer wall of the reverse osmosis membrane tank 2. These two buckets 3 are symmetrically distributed around the transverse central axis of the reverse osmosis membrane tank 2, providing a relatively stable guide for the reverse osmosis membrane body 10. A buffer pad 16 is fixedly connected to the bottom of one end of each bucket 3. The buffer pad 16 is attached to one end of a connecting rod 4, ensuring that the connecting rod 4, when moved to the bottom of the bucket 3, first contacts the buffer pad 16, reducing the impact between the connecting rod 4 and the bucket 3. The reverse osmosis membrane body 10 is slidably connected inside the reverse osmosis membrane tank 2. A retaining spring is movably engaged with the inner wall of the reverse osmosis membrane tank 2, securing the reverse osmosis membrane body 10 to the reverse osmosis membrane tank 2 after connection. This ensures a relatively stable relative position between the reverse osmosis membrane body 10 and the reverse osmosis membrane tank 2.
[0023] As a preferred embodiment of this example, Figure 2 and Figure 3As shown, the outer wall of the fixing ring 8 is a regular polygon, the inner cavity of the connecting ring 7 is a regular polygon, and the connecting frame 5 is a hollow arc shape. The center of the connecting frame 5 is on the same horizontal line as the center of the first connecting pipe 9. Anti-slip ribs are fixedly connected to the outer walls of both the second nut 15 and the first nut 12. The diameter of the outer wall of the second nut 15 is greater than the width of the connecting frame 5, and the diameter of the outer wall of the first nut 12 is greater than the diameter of the outer wall of the connecting ring 7. Because the outer wall of the fixing ring 8 is a regular polygon and the inner cavity of the connecting ring 7 is a regular polygon, the connecting ring 7 can drive the fixing ring 8 to rotate, thereby driving the first connecting pipe 9 and the reverse osmosis membrane body 10 to rotate. Because the connecting frame 5 is a hollow arc shape, and the center of the connecting frame 5 is on the same horizontal line as the center of the first connecting pipe 9, the connecting frame 5 moves along the connecting rod 4 when the connecting plate 6 drives the first connecting pipe 9 to rotate. This allows the operator to rotate the reverse osmosis membrane body 10 and pull it away from the reverse osmosis membrane tank 2 when initially moving it out of the tank. The anti-slip ribs on the outer walls of both the second nut 15 and the first nut 12 facilitate rotation. The diameter of the outer wall of the second nut 15 is greater than the width of the connecting frame 5, and the diameter of the outer wall of the first nut 12 is greater than the diameter of the outer wall of the connecting ring 7. This allows the second nut 15 to restrict the relative position of the connecting frame 5 and the connecting rod 4, and the first nut 12 to restrict the relative position of the connecting plate 6 and the connecting ring 7. Therefore, moving the connecting plate 6 allows the operator to move the first connecting pipe 9, the reverse osmosis membrane body 10, and the connecting rod 4 together.
[0024] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0025] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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. An integrated RO reverse osmosis EDI ultrapure water device, comprising a fixed support (1), characterized in that, A plurality of reverse osmosis membrane tanks (2) are fixedly connected to the upper end of the fixed bracket (1). A movable tank (3) is fixedly connected to the outer wall of the reverse osmosis membrane tank (2). A connecting rod (4) is slidably connected to the inner cavity of the movable tank (3). A connecting frame (5) is provided at one end of the connecting rod (4) extending to the outside of the movable tank (3). A connecting plate (6) is fixedly connected to one side of the connecting frame (5). A connecting ring (7) is fixedly connected to one side of the connecting plate (6). A fixed ring (8) is movably sleeved in the inner cavity of the connecting ring (7). A first connecting ring (8) is fixedly connected to the inner cavity of the fixed ring (8). The first connecting pipe (9) is fixedly connected to the reverse osmosis membrane body (10) at one end. The connecting rod (4) extends out of the outside of the movable bucket (3) and has a second threaded groove (14). The outer side of the second threaded groove (14) is threaded with a second nut (15). The first connecting pipe (9) has a first threaded groove (11) at one end. The first nut (12) and the second connecting pipe (13) are threaded to both sides of the first threaded groove (11). The first nut (12) is located between the connecting ring (7) and the second connecting pipe (13).
2. The integrated RO reverse osmosis EDI ultrapure water equipment according to claim 1, characterized in that, Two movable barrels (3) are fixedly connected to the outer wall of the reverse osmosis membrane tank (2), and the two movable barrels (3) are symmetrically distributed with the transverse central axis of the reverse osmosis membrane tank (2) as the center.
3. The integrated RO reverse osmosis EDI ultrapure water equipment according to claim 1, characterized in that, A buffer pad (16) is fixedly connected to the bottom of one end of the movable bucket (3), and the buffer pad (16) is attached to one end of the connecting rod (4).
4. The integrated RO reverse osmosis EDI ultrapure water equipment according to claim 1, characterized in that, The outer wall of the fixing ring (8) is a regular polygon, and the inner cavity of the connecting ring (7) is a regular polygon.
5. The integrated RO reverse osmosis EDI ultrapure water equipment according to claim 1, characterized in that, The connecting frame (5) is a hollow arc shape, and the center of the connecting frame (5) is on the same horizontal line as the center of the first connecting pipe (9).
6. The integrated RO reverse osmosis EDI ultrapure water equipment according to claim 1, characterized in that, The reverse osmosis membrane body (10) is slidably connected to the reverse osmosis membrane box (2), and a retaining spring is movably engaged with the inner wall of the reverse osmosis membrane box (2), and the retaining spring is in contact with the reverse osmosis membrane body (10).
7. The integrated RO reverse osmosis EDI ultrapure water equipment according to claim 1, characterized in that, The outer walls of the second nut (15) and the first nut (12) are both fixedly connected with anti-slip ridges. The diameter of the outer wall of the second nut (15) is greater than the width of the connecting bracket (5), and the diameter of the outer wall of the first nut (12) is greater than the diameter of the outer wall of the connecting ring (7).