Pure water RO (Reverse Osmosis) filter element assembly convenient and quick to replace

Abstract

The utility model discloses a pure water RO (reverse osmosis) filter element assembly convenient and quick to replace, which comprises a filter element shell with a hollow cylindrical structure, the upper end and the lower end of the filter element shell are connected with a water delivery pipeline, an upper cover plate and a lower cover plate are respectively mounted at the upper end and the lower end of the filter element shell by utilizing a thread structure, and a central pipe is arranged in the middle of the inside of the filter element shell; the lower end of the center pipe and the lower cover plate are fixedly installed, a first through hole is formed in the side face of the middle of the center pipe, a second through hole is formed in the side face of the lower end of the center pipe, and a partition plate structure separating the first through hole from the second through hole is arranged in the center pipe. According to the pure water RO filter element assembly convenient and rapid to replace, a novel structural design is adopted, when a filter element (namely a filter element composite membrane) needs to be replaced, the elastic effect of the spring telescopic rod is utilized to enable the abutting ball to jack up the filter element composite membrane, so that the filter element composite membrane pops up, and the purpose of rapid replacement is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to RO filter element technical field, concretely is a pure water RO filter element assembly convenient and quick replacement. BACKGROUND

[0002] RO filter element is a water treatment filter element based on reverse osmosis technology, is mainly used for high -efficiently removing the impurity, pollutant and microorganism in water, provides safe pure drinking water, under the action of high pressure, water molecules are forced to pass through the RO semipermeable membrane of micropore, and the pollution such as dissolved salt, heavy metal, bacteria, virus is retained because of the volume greater than membrane aperture, thereby realizes high -efficient separation.

[0003] In the prior art, the Chinese patent with the application number CN202221406880.9 discloses a RO membrane composite filter element structure, which comprises a cylinder body provided with a cylindrical hole with one end open; a pure water pipe installed in the cylindrical hole; a lower end cover connected to the bottom of the pure water pipe, and a first assembly for water outlet provided at the top; a membrane assembly sleeved outside the pure water pipe; a water inlet channel is formed between the outer peripheral wall of the membrane assembly and the inner side wall of the cylindrical hole, and a scale inhibitor placing cavity is formed between the bottom of the membrane assembly and the bottom wall of the cylindrical hole; the water in the water inlet channel passes through the scale inhibitor placing cavity and the membrane assembly in sequence, and enters the pure water pipe, by embedding the scale inhibitor in the RO membrane composite filter element, the equipment volume is effectively reduced, the raw water hardness entering the RO membrane is reduced, the service life of the RO membrane is prolonged, and the replacement cost of the filter element is reduced.

[0004] In combination with the above-mentioned material, it can be known that the filter assembly in the prior art is generally composed of a shell and an internal filter membrane, and the service life of the filter membrane is limited in actual use, so it needs to be replaced regularly, and since the filter membrane is installed inside the shell, it is more troublesome to replace without tools. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pure water RO filter element assembly convenient and quick replacement to solve the problem of replacement trouble in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: A pure water RO filter core assembly convenient and fast replacement, including the filter core shell of hollow cylindrical structure, the water pipeline is connected with the upper and lower ends of filter core shell, the upper and lower ends of filter core shell are installed cover plate and lower cover plate respectively using thread structure, and the central pipe is arranged in the middle position of filter core shell inside, the lower end of central pipe is fixedly installed with lower cover plate, the first through -hole is set up to the side surface of central pipe middle position, and the second through -hole is set up to the side surface of central pipe lower end, the baffle structure that separates first through -hole and second through -hole is arranged in the inside of central pipe, the filter core composite membrane is wound around the outside of central pipe, and the upper fixed plate and lower fixed plate are fixedly installed to the upper and lower ends of filter core composite membrane, and the lower end of filter core shell inside is provided with the ejection mechanism.

[0007] Preferably, the ejection mechanism includes a spring telescopic rod fixedly installed on the upper surface of the lower cover plate, and the upper end of the spring telescopic rod is fixedly installed with a contact ball.

[0008] Preferably, the contact ball contacts the lower surface of the lower fixed plate, and the lower fixed plate and the upper fixed plate are both internally provided with a through strip-shaped groove structure.

[0009] Preferably, the edge position of the upper fixed plate is clamped with the limiting block, and the limiting block is fixedly installed on the inner wall of the upper end of the filter core shell.

[0010] Preferably, the upper fixed plate is provided with an avoiding slot on the side surface, and the avoiding slot corresponds to the position of the limiting block.

[0011] Preferably, the first sealing ring for sealing the inner wall of the water pipeline is fixedly installed on the upper and lower ends of the central pipe, and the butt ring is fixedly installed on the outer surface of the upper cover plate and the lower cover plate.

[0012] Preferably, the second sealing ring for sealing the outer wall of the water pipeline is fixedly installed on the inner wall of the butt ring, and the indicating ring is fixedly installed on the lower end of the butt ring, and the indicating ring is internally filled with anhydrous copper sulfate powder.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the pure water RO filter core assembly convenient and fast replacement adopts a novel structure design, and the specific content is as follows:

[0014] 1, water enters the device inside through the central pipe and is purified under the filtering effect of the filter core composite membrane, and finally is discharged from the lower end of the central pipe through the second through -hole, and when the filter core (i.e. filter core composite membrane) needs to be replaced, the spring telescopic rod is used to make the contact ball top up the filter core composite membrane upward, so that the filter core composite membrane is ejected, and the purpose of quick replacement is achieved.

[0015] Further, when the new filter core composite membrane is replaced, the upper fixed plate is rotated, so that the avoidance groove is dislocated with the limiting block, at this time, the limiting block is used for fixing the edge position of the upper fixed plate, and finally the installation and fixation of the filter core composite membrane are realized.

[0016] 2. When the water delivery pipe is butted with the center pipe, the first sealing ring on the upper and lower ends of the center pipe is used for sealing the inner wall of the water delivery pipe, and the second sealing ring in the inner wall of the butt joint ring is used for sealing the outer wall of the water delivery pipe, so that the two are cooperated to prevent water leakage.

[0017] Further, the indicating ring is fixedly installed at the lower end of the butt joint ring, and the anhydrous copper sulfate filled in the indicating ring will become blue when meeting water, so that whether the connection position needs to be overhauled is judged by color change. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the whole installation structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the filter core shell of the utility model;

[0020] Figure 3 It is a schematic diagram of the movement state structure of the upper fixed plate of the utility model;

[0021] Figure 4 It is a schematic diagram of the installation position structure of the spring telescopic rod of the utility model;

[0022] Figure 5 It is a schematic diagram of the installation position structure of the butt joint ring of the utility model;

[0023] Figure 6 It is a schematic diagram of the internal structure of the butt joint ring of the utility model.

[0024] In the drawing: 1, filter core shell; 2, water delivery pipe; 3, upper cover plate; 4, lower cover plate; 5, center pipe; 6, first through hole; 7, second through hole; 8, filter core composite membrane; 9, spring telescopic rod; 10, abutting ball; 11, upper fixed plate; 12, lower fixed plate; 13, limiting block; 14, avoidance groove; 15, first sealing ring; 16, butt joint ring; 17, second sealing ring; 18, indicating ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Embodiment one: please refer to Figures 1-4 , in order to achieve the purpose of convenient and quick replacement, the technical scheme is provided as follows, specifically discloses: the filter core shell 1 is in hollow cylindrical structure, the upper and lower ends of the filter core shell 1 are connected with the water pipeline 2, the upper and lower ends of the filter core shell 1 are respectively installed with the upper cover plate 3 and the lower cover plate 4 by using the threaded structure, and the center pipe 5 is arranged at the middle position inside the filter core shell 1, the lower end of the center pipe 5 is fixedly installed with the lower cover plate 4, the first through hole 6 is formed in the side surface of the center pipe 5 at the middle position, and the second through hole 7 is formed in the side surface of the lower end of the center pipe 5, and the center pipe 5 is provided with the partition plate structure separating the first through hole 6 and the second through hole 7 inside; the filter core composite membrane 8 is wound outside the center pipe 5, and the upper and lower ends of the filter core composite membrane 8 are fixedly installed with the upper fixed plate 11 and the lower fixed plate 12, and the lower end inside the filter core shell 1 is provided with the ejection mechanism, the ejection mechanism comprises the spring telescopic rod 9 fixedly installed on the upper surface of the lower cover plate 4, the upper end of the spring telescopic rod 9 is fixedly installed with the abutting ball 10, the abutting ball 10 abuts against the lower surface of the lower fixed plate 12, and the lower fixed plate 12 and the upper fixed plate 11 are both provided with the through strip-shaped groove structure inside, the edge position of the upper fixed plate 11 is clamped with the limiting block 13, the limiting block 13 is fixedly installed on the inner wall of the upper end of the filter core shell 1, the avoiding groove 14 is formed in the side surface of the upper fixed plate 11, and the avoiding groove 14 corresponds to the position of the limiting block 13.

[0027] In use, first, the water pipeline 2 is fixedly connected to the upper and lower ends of the center pipe 5, so that the device is connected with the waterway, then the water in the water pipeline 2 is discharged into the filter core shell 1 through the first through hole 6 opened and closed in the side surface of the center pipe 5, at this time, the water is filtered and purified by the filter core composite membrane 8, and the filtered water enters the second through hole 7 and is finally discharged from the lower end of the center pipe 5;

[0028] When the filter core composite membrane 8 needs to be replaced, first, the upper cover plate 3 (threadedly connected between the upper cover plate 3 and the filter core shell 1) is opened, then the avoiding groove 14 formed in the side surface of the upper fixed plate 11 is rotated to the position corresponding to the limiting block 13, at this time, the limiting block 13 is separated from the limiting of the upper fixed plate 11, so that the abutting ball 10 pushes the lower fixed plate 12 upward under the elastic action of the spring telescopic rod 9, and finally the filter core composite membrane 8 is ejected, which is convenient for quick replacement.

[0029] Embodiment two: please refer to Figures 5-6The embodiment is provided with the following technical scheme to achieve the purpose of sealing the connection, specifically discloses that the first sealing ring 15 for sealing the inner wall of the water conveying pipe 2 is fixedly installed on the upper and lower ends of the center pipe 5, the butt joint ring 16 is fixedly installed on the outer surfaces of the upper cover plate 3 and the lower cover plate 4, the second sealing ring 17 for sealing the outer wall of the water conveying pipe 2 is fixedly installed on the inner wall of the butt joint ring 16, the indicating ring 18 is fixedly installed at the lower end of the butt joint ring 16, and the indicating ring 18 is filled with anhydrous copper sulfate powder inside.

[0030] When the device is installed in the water conveying pipe 2, the first sealing ring 15 at the upper and lower ends of the center pipe 5 seals the inner wall of the water conveying pipe 2, and the top end of the water conveying pipe 2 extends into the inside of the butt joint ring 16, at this time, the second sealing ring 17 at the inner side of the butt joint ring 16 seals the outer wall of the water conveying pipe 2, so that the sealing effect of the connection is improved through the double sealing effect, and when the indicating ring 18 at the lower end of the butt joint ring 16 becomes blue, it indicates that there is water leakage and needs to be repaired (the indicating ring 18 is filled with anhydrous copper sulfate, which will become blue after encountering water).

[0031] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pure water RO filter core assembly convenient and quick to replace, comprising a filter core shell (1) in a hollow cylindrical structure, the upper and lower ends of the filter core shell (1) are connected with water conveying pipes (2), characterized in that, Also includes: The filter core shell (1) upper and lower ends are respectively installed with cover plate (3) and lower cover plate (4) using thread structure, and the filter core shell (1) inside middle position is provided with center tube (5), the lower end of the center tube (5) is fixedly installed with lower cover plate (4), the center tube (5) middle position side is provided with first through hole (6), and the lower end of the center tube (5) side is provided with second through hole (7), the inside of the center tube (5) is provided with the partition plate structure separating the first through hole (6) and the second through hole (7); The center tube (5) outside is wound with filter core composite membrane (8), and the filter core composite membrane (8) upper and lower ends are fixedly installed with upper fixed plate (11) and lower fixed plate (12), and the filter core shell (1) inside lower end is provided with ejection mechanism.

2. The easy and quick changeable pure water RO filter cartridge assembly according to claim 1, characterized in that: The ejection mechanism includes spring telescopic rod (9) fixedly installed on the upper surface of lower cover plate (4), and the upper end of the spring telescopic rod (9) is fixedly installed with abutting ball (10).

3. A convenient and quick changeable pure water RO cartridge assembly as claimed in claim 2 wherein: The abutting ball (10) abuts the lower surface of lower fixed plate (12), and the inside of the lower fixed plate (12) and upper fixed plate (11) is provided with through strip-shaped groove structure.

4. The easy change pure water RO cartridge assembly of claim 3, wherein: The edge position of the upper fixed plate (11) and the limiting block (13) are mutually clamped, and the limiting block (13) is fixedly installed on the upper end inner wall of filter core shell (1).

5. A convenient and quick changeable pure water RO cartridge assembly as claimed in claim 4 wherein: The side of the upper fixed plate (11) is provided with avoiding groove (14), and the avoiding groove (14) corresponds to the position of limiting block (13).

6. The easy change pure water RO cartridge assembly of claim 1, wherein: The upper and lower ends of the center tube (5) outside are fixedly installed with first sealing ring (15) for sealing the inner wall of water conveying pipe (2), and the outer surface of the upper cover plate (3) and lower cover plate (4) is fixedly installed with butt ring (16).

7. A convenient and quick changeable pure water RO cartridge assembly as claimed in claim 6 wherein: The inner wall of the butt ring (16) is fixedly installed with second sealing ring (17) for sealing the outer wall of water conveying pipe (2), and the lower end of the butt ring (16) is fixedly installed with indicating ring (18), and the inside of the indicating ring (18) is filled with anhydrous copper sulfate powder.

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