Easily-assembled glass fiber reinforced plastic roll type modular reverse osmosis membrane shell
By designing an easy-to-install fiberglass roll-up modular reverse osmosis membrane housing, and utilizing components such as sleeves, sealing rings, and support rings, tool-free rapid installation and fixation are achieved. This solves the problems of complex reverse osmosis membrane installation and poor sealing, and improves installation efficiency and system stability.
Patent Information
- Application Number
- CN202520228443.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-13
AI Technical Summary
In the current reverse osmosis membrane installation process, the connection and fixation of multiple components require tools for tightening, which increases the installation time and difficulty, and may lead to poor sealing or component displacement, affecting system performance and lifespan.
An easy-to-install fiberglass roll-type modular reverse osmosis membrane housing was designed, which uses components such as sleeves, sealing rings, support rings and fixing structures to achieve tool-free rapid installation. The support rings and retaining balls work together to achieve rapid fixing and sealing.
It simplifies the installation process of reverse osmosis membranes, improves installation efficiency, ensures sealing and system stability, avoids component displacement, and extends the service life of the system.
Smart Images

Figure CN223641633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reverse osmosis membrane technology, and in particular to an easy-to-install fiberglass roll-type modular reverse osmosis membrane housing. Background Technology
[0002] Reverse osmosis membrane is an artificial semi-permeable membrane with certain characteristics, made by simulating a biological semi-permeable membrane. Reverse osmosis membrane technology is a highly efficient water treatment method. Its principle is to use a semi-permeable membrane to selectively allow water molecules to pass through while blocking dissolved salts and other impurities under pressure, when the pressure is higher than that of the solution.
[0003] Reverse osmosis membranes are widely used in water treatment to remove dissolved solids, organic matter, bacteria, and other impurities from water. Reverse osmosis membrane installation typically involves the precise positioning and fastening of multiple components, such as pressure end caps, fiberglass housings, reverse osmosis membrane cartridges, support rings, and sealing rings. However, in actual installation, due to the connection and fixation of multiple components, tools are usually required for tightening. Furthermore, differences in the shape, size, and material of each component, as well as limitations in installation space, not only increase installation time and difficulty but may also lead to poor sealing or component displacement, thus affecting the overall performance and lifespan of the system.
[0004] Therefore, there is a need for an easy-to-install fiberglass roll-type modular reverse osmosis membrane housing. Utility Model Content
[0005] To overcome the shortcomings of existing technologies, which involve the connection and fixing of multiple components during actual installation, requiring the use of tools for fastening, and due to differences in the shape, size, and material of each component, as well as limitations in installation space, not only increasing installation time and difficulty, but also potentially leading to poor sealing or component displacement, thus affecting the overall performance and service life of the system, this utility model provides an easy-to-install fiberglass roll-type modular reverse osmosis membrane housing.
[0006] The technical solution of this utility model is as follows: an easy-to-install fiberglass roll-type modular reverse osmosis membrane housing, comprising a fiberglass shell, an outlet connector, a reverse osmosis membrane filter element, a sealing ring, pressure-bearing end caps, adapters, a plugging cap, a first rubber ring, a plugging ring, a support ring, and a fixing structure. An outlet connector is connected to one side of the fiberglass shell. A reverse osmosis membrane filter element is slidably installed inside the fiberglass shell. A sealing ring is fitted onto one end of the reverse osmosis membrane filter element, with the outer side of the sealing ring contacting the fiberglass shell. Two pressure-bearing end caps are slidably installed inside the fiberglass shell, located at both ends of the reverse osmosis membrane filter element. Adapters pass through the pressure-bearing end caps. The ends of the two adapters that are far apart from each other are provided with internal threads, and both ends of the two adapters that are far apart from each other are threaded. The device is equipped with a sealing cap, and a first rubber ring is fitted around the pressure-bearing end. The first rubber ring contacts the fiberglass shell. One of the pressure-bearing end caps is fixedly connected to a plug ring on the side near the reverse osmosis membrane filter element. A support ring is slidably installed inside the plug ring, which holds the reverse osmosis membrane filter element in place. Both pressure-bearing end caps are provided with a fixing structure on the side away from each other. The fixing structure is used to fix the position of the pressure-bearing end caps and also includes a sleeve, a sealing ring, and a first elastic element. The adapter is slidably fitted with a sleeve at the end near the reverse osmosis membrane filter element. The two sleeves are slidably connected to the outlet and inlet ends of the reverse osmosis membrane filter element, respectively. A first elastic element connects the sleeves to the adapter. Both the outlet and inlet ends of the reverse osmosis membrane filter element are fitted with sealing rings.
[0007] As a preferred technical solution of this utility model, it also includes a retaining ball and a second elastic element. Multiple retaining holes are provided on the outer side of the support ring near the insertion ring. A first sliding groove corresponding to the number of retaining holes is provided on the inner side of the insertion ring. A retaining ball is slidably arranged in the first sliding groove. The retaining ball slides and engages with the adjacent retaining hole. A second elastic element connects the retaining ball and the support ring.
[0008] As a preferred technical solution of this utility model, the fixing structure includes a guide ring, a fastening nut, a connecting ring, a connecting rod, a push rod, an arc-shaped top block, and a second rubber ring. The ends of the two adapters that are far apart from each other are provided with external threads. The two pressure-bearing end caps are both fixedly connected to the sides that are far apart from each other. The guide rings are provided with multiple second sliding grooves. The ends of the two adapters that are far apart from each other are each threadedly provided with a fastening nut. The fastening nut is rotatably provided with a connecting ring. The connecting ring is rotatably provided with a connecting rod corresponding to the number of second sliding grooves. The end of the connecting rod that is far away from the connecting ring is rotatably provided with a push rod. The push rod slides in the adjacent second sliding groove. The end of the push rod that is far away from the connecting rod is fixedly connected to an arc-shaped top block. The arc-shaped top block slides against the fiberglass shell. The multiple arc-shaped top blocks are all fitted with a second rubber ring.
[0009] As a preferred embodiment of this utility model, it also includes a gasket, which is slidably disposed inside the sleeve.
[0010] As a preferred technical solution of this utility model, an annular groove is provided on the outer side of the pressure-bearing end cover, and the first rubber ring is stuck in the annular groove.
[0011] As a preferred technical solution of this utility model, the outer side of the arc-shaped top block near the pressure-bearing end cover is provided with a stepped surface.
[0012] Compared with the prior art, this utility model provides an easy-to-install fiberglass roll-type modular reverse osmosis membrane housing, which has the following advantages: 1. By setting up the sleeve, sealing ring and first elastic element, the installation process of the reverse osmosis membrane is made simple and quick. The reverse osmosis membrane can be quickly installed without the use of tools, thus achieving the purpose of easy installation and improving installation efficiency.
[0013] 2. By pushing the support ring to the right to the appropriate position, the support ring will no longer squeeze the ball. The second elastic element will return to its original shape, causing the ball to move downward and engage with the support ring, thus fixing the support ring to the pressure end cap and achieving quick fixation. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional sectional view of the fiberglass shell, water outlet connector, and support ring of this utility model.
[0016] Figure 3 This is a three-dimensional cross-sectional view of the reverse osmosis membrane filter element, sealing ring, and sealing cap of this utility model.
[0017] Figure 4 This is an exploded view of the reverse osmosis membrane filter element, adapter, and sleeve of this utility model.
[0018] Figure 5 This is a three-dimensional sectional view of the pressure-bearing end cap, insertion ring, and support ring of this utility model.
[0019] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle.
[0020] Figure 7 This is a three-dimensional sectional view of the pressure-bearing end cap, fastening nut, and connecting ring of this utility model.
[0021] Figure 8 This is an exploded view of the pressure-bearing end cap, guide ring, and fastening nut of this utility model.
[0022] The components are: 1-Fiberglass shell, 2-Water outlet connector, 3-Reverse osmosis membrane filter element, 4-Sealing ring, 5-Pressure bearing end cap, 6-Adapter, 7-Sleeve, 701-Plug cap, 8-Sealing ring, 9-First elastic element, 10-First rubber ring, 11-Plug-in ring, 12-Support ring, 13-Clamping hole, 14-First sliding groove, 15-Clamping ball, 16-Second elastic element, 17-Guide ring, 1701-Second sliding groove, 18-Fasting nut, 19-Connecting ring, 20-Connecting rod, 21-Push rod, 22-Arc-shaped top block, 23-Second rubber ring, 24-Gasket, 25-Annular groove. Detailed Implementation
[0023] 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.
[0024] Example 1: An easy-to-install fiberglass roll-up modular reverse osmosis membrane housing, please refer to... Figures 1-8The system includes a fiberglass shell 1, a water outlet connector 2, a reverse osmosis membrane filter element 3, a sealing ring 4, a pressure-bearing end cap 5, an adapter 6, a sealing cap 701, a first rubber ring 10, a plug ring 11, a support ring 12, and a fixing structure. The water outlet connector 2 is connected to one side of the fiberglass shell 1. The reverse osmosis membrane filter element 3 is slidably installed inside the fiberglass shell 1. A sealing ring 4 is fitted onto one end of the reverse osmosis membrane filter element 3, with the outer side of the sealing ring 4 contacting the fiberglass shell 1. Two pressure-bearing end caps 5 are slidably installed inside the fiberglass shell 1, located at both ends of the reverse osmosis membrane filter element 3. Adapters 6 pass through the pressure-bearing end caps 5. The ends of the two adapters 6 that are furthest from each other are provided with internal threads, and both ends of the two adapters 6 that are furthest from each other are threaded. A sealing cap 701 is provided, and a first rubber ring 10 is fitted around the pressure-bearing end. The first rubber ring 10 contacts the fiberglass shell 1. One of the pressure-bearing end caps 5 is fixedly connected to a plug ring 11 on the side near the reverse osmosis membrane filter element 3. A support ring 12 is slidably provided inside the plug ring 11, which abuts the reverse osmosis membrane filter element 3. A fixing structure is provided on the side of the two pressure-bearing end caps 5 that is far apart from each other. The fixing structure is used to fix the position of the pressure-bearing end caps 5. The fixing structure includes a guide ring 17, a fastening nut 18, a connecting ring 19, a connecting rod 20, a push rod 21, an arc-shaped top block 22, and a second rubber ring 23. The ends of the two adapters 6 that are far apart from each other are provided with external threads. The ends of the two pressure-bearing end caps 5 that are far apart from each other are fixed. A guide ring 17 is fixedly connected to the adapter 6. Four second sliding grooves 1701 are provided on the guide ring 17. A fastening nut 18 is threaded onto the ends of the two adapters 6 that are furthest from each other. A connecting ring 19 is rotatably mounted on the fastening nut 18. A connecting rod 20, corresponding to the number of second sliding grooves 1701, is rotatably mounted on the connecting ring 19. A push rod 21 is rotatably mounted on the end of the connecting rod 20 furthest from the connecting ring 19. The push rod 21 slides within adjacent second sliding grooves 1701. An arc-shaped top block 22 is fixedly connected to the end of the push rod 21 furthest from the connecting rod 20. The arc-shaped top block 22 slides against the fiberglass outer shell 1. A second rubber ring 23 is fitted onto all four arc-shaped top blocks 22. The adapter 6 slides against the end of the reverse osmosis membrane filter element 3. A sleeve 7 is provided, and two sleeves 7 are slidably connected to the outlet and inlet ends of the reverse osmosis membrane filter element 3, respectively. A first elastic element 9 is connected between the sleeve 7 and the adapter 6. A sealing ring 8 is fitted on both the outlet and inlet ends of the reverse osmosis membrane filter element 3. A gasket 24 is slidably provided inside the sleeve 7. The gasket 24 reduces the gap between the outlet and inlet ends of the reverse osmosis membrane filter element 3 and the sleeve 7, increasing stability. An annular groove 25 is opened on the outer side of the pressure end cover 5. The first rubber ring 10 is stuck in the annular groove 25, thereby limiting the first rubber ring 10 and preventing the first rubber ring 10 from falling off. A stepped surface is provided on the outer side of the arc-shaped top block 22 near the pressure end cover 5. The stepped surface is engaged with the pressure end cover 5, further reinforcing the pressure end cover 5.
[0025] When installing the reverse osmosis membrane, first place the pressure end cap 5 into the right end of the fiberglass shell 1, so that the first rubber ring 10 contacts the inner wall of the fiberglass shell 1. Next, place the reverse osmosis membrane filter element 3 into the fiberglass shell 1, so that it contacts the support ring 12. The support ring 12 limits the reverse osmosis membrane filter element 3, keeping it in a centered position for easy subsequent installation. Then, push the reverse osmosis membrane filter element 3 so that the outlet end of the reverse osmosis membrane filter element 3 is inserted into the sleeve 7. At the same time, confirm that the sealing ring 8 is correctly locked in the corresponding position of the sleeve 7 to enhance the sealing effect and prevent leakage. Thus, the outlet end of the reverse osmosis membrane filter element 3 is connected to the adapter 6. Under the action of the first elastic element 9, the stability is increased to prevent the sleeve 7 from loosening. Then, place the other pressure end cap 5 into the left end of the fiberglass shell 1 and push the pressure end cap 5 to the right until the sleeve 7 is completely fitted onto the reverse osmosis membrane filter element 6. On the membrane filter element 3, check the position of the sealing ring 8 again to ensure good sealing. Through the above operations, the installation steps are simplified, and the reverse osmosis membrane can be quickly installed without the use of tools, achieving the purpose of easy installation and improving installation efficiency. After the above operations, screw the fastening nut 18 into the external thread of the adapter 6 and tighten it gradually. As the fastening nut 18 moves inward, it will push the connecting ring 19 inward. The inward movement of the connecting ring 19 will cause the connecting rod 20 to rotate outward, causing the push rod 21 and the arc-shaped top block 22 to move outward, thereby making the arc-shaped top contact the second rubber ring 23, thus fixing the position of the pressure end cover 5 and preventing the pressure end cover 5 from moving. Then, screw the sealing cap 701 into the adapter 6. Finally, check whether all components are firmly connected and without leakage to ensure the stability and reliability of the entire system.
[0026] Example 2: Based on Example 1, please refer to... Figure 5 and Figure 6 The outer side of the support ring 12 near the insertion ring 11 has several locking holes 13. The inner side of the insertion ring 11 has a first groove 14 corresponding to the number of locking holes 13. A locking ball 15 is slidably arranged in the first groove 14. The locking ball 15 slides and engages with the adjacent locking hole 13. A second elastic element 16 connects the locking ball 15 and the support ring 12.
[0027] Before installing the reverse osmosis membrane, ensure that the support ring 12 is located on one side of the insertion ring 11 and aligned with the corresponding position on the pressure end cap 5. Push the support ring 12 to the right until it contacts the pressure end cap 5. At this time, the retaining ball 15 is squeezed upward and compresses the second elastic element 16. Continue to push the support ring 12 to the right until it stops squeezing the retaining ball 15. The second elastic element 16 returns to its original state, causing the retaining ball 15 to move downward and engage with the support ring 12, thus fixing the support ring 12 to the pressure end cap 5, thereby achieving rapid fixation.
[0028] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.
Claims
1. An easy-to-install fiberglass roll-type modular reverse osmosis membrane housing, comprising a fiberglass shell (1), an outlet connector (2), a reverse osmosis membrane filter element (3), a sealing ring (4), a pressure-bearing end cap (5), an adapter (6), a sealing cap (701), a first rubber ring (10), a plug ring (11), a support ring (12), and a fixing structure. The outlet connector (2) is connected and communicated on one side of the fiberglass shell (1). The reverse osmosis membrane filter element (3) is slidably arranged inside the fiberglass shell (1). A sealing ring (4) is fitted on one end of the reverse osmosis membrane filter element (3), and the outer side of the sealing ring (4) contacts the fiberglass shell (1). Two pressure-bearing end caps (5) are slidably arranged inside the fiberglass shell (1), and the pressure-bearing end caps (5) are located on the reverse osmosis membrane filter element (3). At both ends, adapters (6) are threaded through the pressure end caps (5). The ends of the two adapters (6) that are far apart from each other are provided with internal threads. Both ends of the two adapters (6) that are far apart from each other are provided with threaded sealing caps (701). A first rubber ring (10) is sleeved on the outside of the pressure end. The first rubber ring (10) is in contact with the fiberglass shell (1). One of the pressure end caps (5) is fixedly connected to a plug ring (11) on the side near the reverse osmosis membrane filter element (3). A support ring (12) is slidably provided inside the plug ring (11). The support ring (12) abuts against the reverse osmosis membrane filter element (3). Both pressure end caps (5) are provided with a fixing structure on the side far apart from each other. The fixing structure is used to fix the position of the pressure end caps (5). The feature is: It also includes a sleeve (7), a sealing ring (8) and a first elastic element (9). The adapter (6) is slidably provided with a sleeve (7) at one end of the reverse osmosis membrane filter element (3). The two sleeves (7) are slidably connected to the water outlet end and the water inlet end of the reverse osmosis membrane filter element (3) respectively. The first elastic element (9) is connected between the sleeve (7) and the adapter (6). The water outlet end and the water inlet end of the reverse osmosis membrane filter element (3) are both fitted with sealing rings (8).
2. The easy-to-install fiberglass roll-type modular reverse osmosis membrane housing as described in claim 1, characterized in that: It also includes a retaining ball (15) and a second elastic element (16). Multiple retaining holes (13) are provided on the side of the support ring (12) near the insertion ring (11). A first groove (14) corresponding to the number of retaining holes (13) is provided on the inner side of the insertion ring (11). A retaining ball (15) is slidably arranged in the first groove (14). The retaining ball (15) slides and engages with the adjacent retaining hole (13). A second elastic element (16) connects the retaining ball (15) and the support ring (12).
3. The easy-to-install fiberglass roll-type modular reverse osmosis membrane housing as described in claim 2, characterized in that: The fixed structure includes a guide ring (17), a fastening nut (18), a connecting ring (19), a connecting rod (20), a push rod (21), an arc-shaped top block (22), and a second rubber ring (23). The ends of the two adapters (6) that are far apart from each other are provided with external threads. The two pressure-bearing end caps (5) are both fixedly connected to the sides that are far apart from each other with a guide ring (17). Multiple second sliding grooves (1701) are provided on the guide ring (17). The ends of the two adapters (6) that are far apart from each other are each threadedly provided with a fastening nut (18). The fastening nut (18) rotates... A connecting ring (19) is provided, and a connecting rod (20) corresponding to the number of second slide grooves (1701) is rotatably provided on the connecting ring (19). A push rod (21) is rotatably provided at the end of the connecting rod (20) away from the connecting ring (19). The push rod (21) slides in the adjacent second slide groove (1701). An arc-shaped top block (22) is fixedly connected at the end of the push rod (21) away from the connecting rod (20). The arc-shaped top block (22) slides against the fiberglass shell (1). A second rubber ring (23) is sleeved on multiple arc-shaped top blocks (22).
4. The easy-to-install fiberglass roll-type modular reverse osmosis membrane housing as described in claim 3, characterized in that: It also includes a gasket (24), which is slidably provided inside the sleeve (7).
5. The easy-to-install fiberglass roll-type modular reverse osmosis membrane housing as described in claim 4, characterized in that: An annular groove (25) is provided on the outer side of the pressure end cap (5), and the first rubber ring (10) is stuck in the annular groove (25).
6. The easy-to-install fiberglass roll-type modular reverse osmosis membrane housing as described in claim 5, characterized in that: The outer side of the arc-shaped top block (22) near the pressure end cover (5) has a stepped surface.