Reverse osmosis membrane shell assembly

Abstract

The utility model discloses a reverse osmosis membrane shell component which comprises an end cover and a membrane shell, a partition plate is arranged at the top of the membrane shell and divides the interior of the membrane shell into a filtering cavity and a discharging cavity, and a through hole is formed in the middle of the partition plate; a material pushing rod is arranged in the discharging cavity, the lower portion of the material pushing rod penetrates through a through hole of the partition plate, and a material pushing plate is arranged below the material pushing rod. An opening is formed in the top end of the membrane shell, the top end of the material pushing rod extends out of the opening, and the material pushing rod is sleeved with a spring. The push rod is arranged at the top of the membrane shell, and the reverse osmosis membrane can be pushed by the push plate by pressing the protruded push rod part, so that a user can conveniently pull out the reverse osmosis membrane and quickly replace the reverse osmosis membrane.

Description

Technical Field

[0001] This utility model relates to the field of reverse osmosis membrane technology, and in particular to a reverse osmosis membrane housing assembly. Background Technology

[0002] A reverse osmosis membrane is an artificial semi-permeable membrane with specific properties, mimicking a biological semi-permeable membrane. It is the core component of reverse osmosis technology. The principle of reverse osmosis is that, under pressure higher than the osmotic pressure of the solution, other substances cannot pass through the semi-permeable membrane, thus separating them from water. The membrane pores of a reverse osmosis membrane are extremely small, enabling it to effectively remove dissolved salts, colloids, microorganisms, organic matter, and other substances from water.

[0003] A reverse osmosis membrane module typically consists of a reverse osmosis membrane, a membrane housing, and end caps, with the end caps secured to the membrane housing via a threaded connection. The reverse osmosis membrane is wound onto a central tube and placed inside the membrane housing. Over time, the reverse osmosis membrane can become clogged and fouled by impurities, leading to reduced permeate flow and decreased permeate quality. Therefore, the filtration efficiency of the reverse osmosis membrane gradually weakens with prolonged use, necessitating regular replacement to ensure water quality safety and the continued proper functioning of the equipment.

[0004] When the reverse osmosis membrane reaches the end of its service life, the end cap needs to be unscrewed to remove the membrane from the membrane housing. Currently, the end cap and membrane housing are tightened with threads, requiring several turns by hand. This means that a professional technician needs to use special tools to unscrew the end cap, and after unscrewing, a special tool is needed to pull the reverse osmosis membrane out of the membrane housing for replacement. The disassembly method is extremely inconvenient and difficult, making it impossible for users to perform the operation themselves. Utility Model Content

[0005] To address the aforementioned issues, this invention provides a reverse osmosis membrane housing assembly that simplifies the disassembly and assembly of the end caps, making it easier for users to replace the reverse osmosis membrane themselves.

[0006] Therefore, the technical solution of this utility model is: a reverse osmosis membrane housing assembly, including an end cap and a membrane housing, wherein a partition plate is provided on the top of the membrane housing to divide the interior of the membrane housing into a filtration chamber and a discharge chamber, and a through hole is provided in the middle of the partition plate; a push rod is provided in the discharge chamber, the push rod passes through the through hole of the partition plate below, and a push plate is provided below the push rod; an opening is provided at the top of the membrane housing, the top of the push rod extends out of the opening, and a spring is sleeved on the push rod.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the outer side of the push rod is fitted with a sealing sleeve, which is sealed and fitted with the through hole in the middle of the partition plate.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: a limiting plate is threadedly fixed above the push rod, one end of the spring abuts against the partition plate, and the other end abuts against the limiting plate.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: a locking block is provided on the outer side of the bottom of the membrane shell, a buckle is provided on the outer side of the end cap, and a positioning pin hole is provided on the locking block, with the positioning pin inserted into the positioning pin hole and located on the outer side of the buckle.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the bottom opening of the membrane shell is provided with a stepped surface, and multiple sealing rings are provided on the stepped surface and the side wall. The end cap is provided with a connecting end, and the connecting end is sealed to the stepped surface.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the membrane shell is provided with a water inlet and a wastewater outlet on its side, and a pure water outlet is provided on the end cap.

[0012] During installation, the reverse osmosis membrane is wound around the central tube and placed inside the membrane housing. The top of the central tube is sealed and abuts against the pusher plate. The lower end of the central tube is connected to the pure water outlet on the end cap. At the same time, a separator sleeve is fitted on the outside of the reverse osmosis membrane to separate the inlet and the wastewater outlet. Finally, the end cap is inserted into the membrane housing, and the buckle on the end cap is engaged with the buckle on the outside of the membrane housing. A positioning pin is inserted to prevent the buckle from coming off, so that the end cap is firmly fixed to the membrane housing.

[0013] During disassembly, pull out the positioning pin, open the buckle, remove the end cap, and then push the push rod at the end of the membrane housing to push the push plate outward, making it easy for the user to pull out the reverse osmosis membrane and quickly complete the replacement operation.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. A push rod is installed on the top of the membrane housing. Pressing the protruding push rod will cause the push plate to push the reverse osmosis membrane, making it easy for users to pull out the reverse osmosis membrane and quickly replace it.

[0016] 2. A buckle is provided on the end cap, and a locking block is provided on the outside of the membrane housing. The two are locked together, making it easier to install and remove the end cap. Users can operate it themselves. At the same time, a positioning pin is inserted into the locking block to prevent the buckle from coming off and to ensure the stability of the connection between the two. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 2 for Figure 1 A magnified view of point A;

[0019] Figure 3 for Figure 1 A magnified view of point B;

[0020] Figure 4This is a schematic diagram of the push rod of this utility model;

[0021] Figure 5 This is a cross-sectional view of the utility model in use.

[0022] The markings in the diagram are as follows: End cap 1, Pure water outlet 11, Connecting end 12, Buckle 13, Membrane shell 2, Inlet 21, Wastewater outlet 22, Filter chamber 23, Discharge chamber 24, Opening 25, Stepped surface 26, Sealing ring 27, Locking block 28, Positioning pin hole 29, Separator plate 3, Through hole 31, Push rod 4, Push plate 41, Limiting plate 42, Sealing sleeve 5, Spring 6, Positioning pin 7, Reverse osmosis membrane 8, Central tube 9, Separator sleeve 10. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0024] Furthermore, 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 technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0025] See the attached drawings. The reverse osmosis membrane housing assembly described in this embodiment includes an end cap 1 and a membrane housing 2. The membrane housing 2 has an inlet 21 and a wastewater outlet 22 on its side, and the end cap 1 has a pure water outlet 11. The top of the membrane housing 2 is provided with a partition plate 3, which divides the interior of the membrane housing 2 into a filtration chamber 23 and a discharge chamber 24. The partition plate 3 has a through hole 31 in the middle. The discharge chamber 24 is provided with a push rod 4, which passes through the through hole 31 of the partition plate 3, and a push plate 41 is provided below the push rod 4. A sealing sleeve 5 is fitted on the outside of the push rod 4, which seals with the through hole 31 in the middle of the partition plate 3. The sealing sleeve 5 is made of rubber to prevent water leakage between the push rod 4 and the partition plate 3.

[0026] The membrane shell 2 has an opening 25 at its top, and the top of the push rod 4 extends out of the opening 25. A limiting plate 42 is fixed above the push rod 4 by a thread. A spring 6 is sleeved on the push rod 4. One end of the spring 6 abuts against the partition plate 3, and the other end abuts against the limiting plate 42.

[0027] The membrane housing 2 has a stepped surface 26 at its bottom opening, and multiple sealing rings 27 are provided on the stepped surface 26 and its sidewall. The end cap 1 has a connecting end 12, which is inserted into the port of the membrane housing 2. The connecting end 12 and the stepped surface 26 are sealed together by the sealing rings 27. A locking block 28 is provided on the outer side of the bottom of the membrane housing 2, and a buckle 13 is provided on the outer side of the end cap 1. The locking block 28 has a positioning pin hole 29, and a positioning pin 7 is inserted into the positioning pin hole 29, located outside the buckle 13. The buckle 13 can be fastened onto the locking block 28 to fix the end cap 1 and the membrane housing 2. Inserting the positioning pin 7 on the outer side of the buckle 13 can prevent the buckle 13 from disengaging.

[0028] During installation, the reverse osmosis membrane 8 is wound around the central tube 9 and placed inside the membrane housing 2. The top of the central tube 9 is sealed and abuts against the pusher plate 41. The lower end of the central tube 9 is connected to the pure water outlet 11 on the end cap 1. At the same time, a separator sleeve 10 is fitted on the outside of the reverse osmosis membrane 8 to separate the inlet 21 and the wastewater outlet 22. Finally, the end cap 1 is inserted into the membrane housing 2, and the buckle 13 on the end cap 1 is engaged with the locking block 28 on the outside of the membrane housing 2. The positioning pin 7 is inserted to prevent the buckle 13 from disengaging, so that the end cap 1 is firmly fixed on the membrane housing 2.

[0029] During disassembly, pull out the positioning pin 7, open the buckle 13, remove the end cap 1, and then push the push rod 4 at the end of the membrane housing 2 so that the push plate 41 pushes the center tube 9 outward, making it convenient for the user to pull out the reverse osmosis membrane 8 and quickly complete the replacement operation.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A reverse osmosis membrane housing assembly, comprising end caps and a membrane housing, characterized in that: The membrane shell has a partition plate at the top, which divides the interior of the membrane shell into a filtration chamber and a discharge chamber. The partition plate has a through hole in the middle. The discharge chamber has a push rod, which passes through the through hole of the partition plate and has a push plate below it. The membrane shell has an opening at the top, the top of which extends out of the opening and is fitted with a spring.

2. The reverse osmosis membrane housing assembly as described in claim 1, characterized in that: The push rod is fitted with a sealing sleeve on its outer side, which seals with the through hole in the middle of the partition plate.

3. A reverse osmosis membrane housing assembly as described in claim 1, characterized in that: A limiting plate is threadedly fixed above the push rod, with one end of the spring abutting against the partition plate and the other end abutting against the limiting plate.

4. A reverse osmosis membrane housing assembly as described in claim 1, characterized in that: The membrane shell has a locking block on the outer side of its bottom, and a buckle on the outer side of the end cap. The locking block has a positioning pin hole, and the positioning pin is inserted into the positioning pin hole and located on the outer side of the buckle.

5. A reverse osmosis membrane housing assembly as described in claim 4, characterized in that: The membrane shell has a stepped surface at the bottom opening, and multiple sealing rings are provided on the stepped surface and the side wall. The end cap has a connecting end, which is sealed to the stepped surface.

6. A reverse osmosis membrane housing assembly as described in claim 1, characterized in that: The membrane housing has a water inlet and a wastewater outlet on its side, and a pure water outlet on its end cap.

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