CN214422361U - RO membrane composite filter core convenient to installation - Google Patents

Abstract

The utility model discloses a RO membrane composite filter element convenient to install, which comprises a filter flask and a filter flask cover which are fixedly connected, wherein a preposed filter element and an RO membrane are arranged in the filter flask, and the RO membrane is arranged in the preposed filter element; a central pipe is arranged in the RO membrane, and water inlet holes are formed in the circumference of the central pipe; the first sleeve is positioned between the front filter element and the RO membrane and divides two independent water flow channels between the inner side of the front filter element and the outer side of the RO membrane; the middle of the filter bottle cover is provided with a boss, positioning blocks are arranged on two sides of the boss, a water path conversion part is further fixed inside the filter bottle cover, and a water inlet and outlet hole is formed in the water path conversion part and communicated with a water inlet and outlet interface in the boss. The utility model discloses with leading filter core, RO membrane module integration in a filter flask, make full use of the space in the filter flask, reduce the shared space of several filter cores to reduce the volume of water purifier greatly, satisfy the user demand of more occasions.

Description

RO membrane composite filter core convenient to installation

Technical Field

The utility model belongs to the technical field of water purification unit, in particular to RO membrane composite filter convenient to installation.

Background

The current water purifier generally includes the RO filter core, for further protection RO filter core, can set up leading filter core in leading filtration water route, for further improving quality of water, obtains better taste, can set up rearmounted filter core in rearmounted filtration water route. The necessary parts of the water purifier cannot be reduced, so that the volume of the water purifier is directly related to the filter element. Generally, a single filter element is independently arranged in a single filter bottle, so that the water purifier is provided with a plurality of filter bottles, and each filter bottle needs to occupy the volume of the water purifier. The water purifier is too large in size, and may not be normally installed when the installation space of a user is limited.

Disclosure of Invention

The utility model aims at solving the above problem, provide a RO membrane composite filter core that can reduce the filter core and occupy the volume, the installation of being convenient for.

Therefore, the technical scheme of the utility model is that: a RO membrane composite filter element convenient to install comprises a filter flask and a filter flask cover which are fixedly connected; the pre-filter element and the RO membrane assembly are arranged in the filter flask, the pre-filter element is of an annular structure, the RO membrane assembly is arranged in the pre-filter element and comprises an RO membrane and a top cover, and the top cover is sleeved on the RO membrane and seals the top end face of the RO membrane; a central pipe is arranged in the RO membrane, and water inlet holes are formed in the circumference of the central pipe;

the method is characterized in that: the first sleeve is positioned between the preposed filter element and the RO membrane assembly and divides two independent water flow channels between the inner side of the preposed filter element and the outer side of the RO membrane assembly; a boss is arranged in the middle of the filter bottle cover, positioning blocks are arranged on two sides of the boss, 5 water inlet and outlet interfaces are arranged in the boss, and a self-sealing water assembly is arranged in each water inlet and outlet interface; a waterway conversion piece is further fixed inside the filter bottle cap, and 5 water inlet and outlet holes are formed in the waterway conversion piece and communicated with a water inlet and outlet interface in the boss.

Preferably, a first water inlet channel is formed between the outer side of the preposed filter element and the inner wall of the filter flask, and a first water outlet channel is formed between the inner side of the preposed filter element and the outer wall of the first sleeve; a second water inlet channel is arranged between the outer side of the RO membrane and the inner wall of the first sleeve, and the second water inlet channel is communicated with the bottom end face of the RO membrane; the interior of the central tube of the RO membrane component is provided with a second water outlet channel, the top end of the central tube is provided with a first water outlet column communicated with the second water outlet channel, the middle of the top cover is provided with a second water outlet column, the first water outlet column is arranged in the second water outlet column, and a wastewater channel is arranged between the first water outlet column and the second water outlet column.

Preferably, the 5 water inlet and outlet holes on the waterway conversion piece are respectively a first water inlet hole, a first water outlet hole, a second water inlet hole, a waste water hole and a pure water hole; the water path conversion part is provided with 4 circles of concentric circular protective walls towards one side of the RO membrane component and is divided into a first protective wall, a second protective wall, a third protective wall and a fourth protective wall from inside to outside, a first water inlet hole is communicated with the outside of the fourth protective wall, a first water outlet hole is communicated with the third protective wall and the fourth protective wall, a second water inlet hole is communicated with the second protective wall and the third protective wall, a waste water hole is communicated with the first protective wall and the second protective wall, and a pure water hole is communicated with the inside of the first protective wall.

Preferably, leading filter core includes the cotton layer of PP and the activated carbon layer of coaxial setting, and the activated carbon layer is located the cotton layer inside of PP.

Preferably, the preposed filter element is an annular ceramic filter layer.

When the filter element is installed, the boss of the filter bottle is inserted into the filter element fixing seat on the water circuit board or the filter element fixing device, and the positioning blocks on the two sides of the boss can be clamped by the stop block on the filter element fixing seat, so that the filter element is firmly clamped by the fixing block to realize the upper limit and the lower limit of the filter element.

Water enters the filter flask from a water inlet and outlet port of the filter flask cover, flows along the first water inlet channel, enters from the side surface of the preposed filter element, is filtered by the PP cotton layer and the activated carbon layer and then flows out from the first water outlet channel; the water primarily filtered by the preposed filter element flows according to the water path design, for example, the water flows through a water inlet electromagnetic valve, a booster pump and the like, the water pressurized by the booster pump enters the first sleeve from a water inlet and outlet interface of the filter flask cover, and the water flows to the bottom of the RO membrane along the second water inlet channel and enters from the end surface of the bottom of the RO membrane because the water cannot enter from the outer side of the RO membrane; after water flow is filtered by an RO membrane, the generated pure water enters the central tube through a water inlet hole in the central tube and flows out of a first water outlet column at the top end of the central tube in sequence; and waste water generated by the RO membrane is discharged from a waste water channel between the second water outlet column of the top cover and the first water outlet column of the central tube.

The conventional PP cotton layer and the conventional activated carbon layer can be selected for the front filter element, the ceramic filter layer can also be selected, the ceramic filter precision is dozens of times higher than those of the PP cotton layer and the activated carbon layer, bacteria can be filtered, the whole volume of the ceramic filter layer is smaller than the volumes of the PP cotton layer and the activated carbon layer, the occupied space in a filter bottle is small, and the large-flux water purifier is suitable for small-volume large-flux water purifiers.

The utility model integrates the preposed filter element and the RO membrane component in one filter flask, fully utilizes the space in the filter flask, reduces the space occupied by several filter elements, thereby greatly reducing the volume of the water purifier and meeting the use requirements of more occasions; the filter flask installs spacingly through the boss of lower extreme, during the installation disect insertion filter flask can, need not to rotate, it is more convenient to install.

Drawings

The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention

FIG. 1 is a structural sectional view of embodiment 1;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a top view of the structure of the present invention;

fig. 4 is an explosion diagram of the structure of the filter bottle cap of the present invention;

FIGS. 5 and 6 are schematic structural views of the waterway conversion member;

FIG. 7 is a schematic structural view of the self-sealing water assembly of the present invention;

fig. 8 is a schematic view of the installation of the present invention;

FIG. 9 is a schematic diagram of the waterway of the operation of the present invention;

FIG. 10 is a structural sectional view of embodiment 2.

Labeled as: the filter flask comprises a filter flask 1, a filter flask cover 2, a boss 21, a trapezoid positioning block 22, a first water inlet port 23, a first water outlet port 24, a second water inlet port 25, a wastewater port 26, a pure water port 27, a cover plate 28, a PP cotton layer 31, an activated carbon layer 32, a ceramic filter layer 33, an RO membrane 41, a top cover 42, a central tube 43, a water inlet 44, a first water outlet column 45, a second water outlet column 46, a first sleeve 5, a first water inlet channel 61, a first water outlet channel 62, a second water inlet channel 63, a wastewater channel 64, a second water outlet channel 65, a self-sealing component 7, a base 71, a sealing component 72, a spring 73, an annular block 74, a sealing ring 75, a waterway conversion component 8, a first water inlet hole 81, a first water outlet hole 82, a second water inlet hole 83, a wastewater hole 84, a pure water hole 85, a first protective wall 86, a second protective wall 87, a third protective wall 88, a fourth protective wall 89, a sealing gasket 9, a waterway plate 10, The filter element seat 11, the sliding unit 12, the trapezoid stopper 121, the push rod 122, the fixed locking unit 13, the motor 14, the cam 15, the return spring 16, the water inlet electromagnetic valve 17, the booster pump 18, the one-way valve 19, the high-pressure switch 110, the water outlet tap 111 and the waste water electromagnetic valve 112.

Detailed Description

Example 1

The composite filter element comprises a filter flask 1 and a filter flask cover 2 which are fixedly connected; the filter flask is characterized in that a front filter element, a first sleeve pipe 5 and an RO membrane assembly are arranged in the filter flask 1, the front filter element is of an annular structure and comprises a PP cotton layer 31 and an activated carbon layer 32 which are coaxially arranged, and the activated carbon layer is positioned inside the PP cotton layer. The first sleeve 5 is positioned in the activated carbon layer 32, the RO membrane assembly is arranged in the first sleeve 5, and the first sleeve 5 separates two independent water flow channels between the inner side of the front filter element and the outer side of the RO membrane assembly; the RO membrane module comprises an RO membrane 41 and a top cover 42, wherein the top cover 42 is sleeved on the RO membrane 41 and seals the top end face of the RO membrane 41; a central pipe 43 is arranged in the RO membrane 41, and a water inlet 44 is arranged on the circumference of the central pipe.

A first water inlet channel 61 is formed between the outer side of the preposed filter element and the inner wall of the filter flask, and a first water outlet channel 62 is formed between the inner side of the preposed filter element and the outer wall of the first sleeve 5; a second water inlet channel 63 is arranged between the outer side of the RO membrane and the inner wall of the first sleeve 5 and communicated with the bottom end face of the RO membrane; a second water outlet channel 65 is arranged in a central tube 43 of the RO membrane assembly, a first water outlet column 45 communicated with the second water outlet channel is arranged at the top end of the central tube 43, a second water outlet column 46 is arranged in the middle of the top cover 42, the first water outlet column 45 is arranged in the second water outlet column 46, and a wastewater channel 64 is arranged between the first water outlet column and the second water outlet column 46.

A boss 21 is arranged in the middle of the filter bottle cap 2, trapezoidal positioning blocks 22 are arranged on two sides of the boss, 5 water inlet and outlet interfaces are arranged in the boss and comprise a first water inlet interface 23, a first water outlet interface 24, a second water inlet interface 25, a wastewater interface 26 and a pure water interface 27, a self-sealing water assembly 7 is arranged in each water inlet and outlet interface, and a cover plate 28 is arranged on the outermost part of the filter bottle cap; a water path conversion piece 8 is further fixed in the filter bottle cover, and a sealing gasket 9 is arranged between the filter bottle cover and the water path conversion piece 8; the waterway conversion piece is provided with 5 water inlet and outlet holes which are respectively a first water inlet hole 81, a first water outlet hole 82, a second water inlet hole 83, a waste water hole 84 and a pure water hole 85 and are communicated with the water inlet and outlet interface in the boss. The water path conversion part 8 is provided with 4 circles of concentric circular protective walls towards one side of the RO membrane assembly, and is divided into a first protective wall 86, a second protective wall 87, a third protective wall 88 and a fourth protective wall 89 from inside to outside, a first water inlet 81 is communicated with the outside of the fourth protective wall 89, a first water outlet 82 is communicated with the third protective wall and the fourth protective wall, a second water inlet 83 is communicated with the second protective wall and the third protective wall, a waste water hole 84 is communicated with the first protective wall and the second protective wall, and a pure water hole 85 is communicated with the inside of the first protective wall 86.

The self-sealing water assembly 7 comprises a base 71, a sealing element 72 and a spring 73, wherein the base is of a hollow cylindrical structure, a protruding annular block 74 is arranged inside the base, and the aperture in the middle of the annular block is smaller than the apertures of the upper end and the lower end of the base; the sealing member is T-shaped, the small end of the sealing member penetrates through the annular step surface, the sealing ring 75 is sleeved at the lower end of the sealing member and abuts against the step surface below the annular block, the spring is sleeved on the sealing member, one end of the spring abuts against the large end of the sealing member, and the other end of the spring abuts against the step surface above the annular block.

As shown in fig. 8, a filter element fixing seat is arranged on the water channel plate 10, the filter element fixing seat includes a filter element seat 11, a sliding unit 12 and a fixing and locking unit 13, 5 filter element connectors are arranged in the filter element seat 11, slide rails are arranged on two sides inside the filter element seat, and the sliding unit 12 is arranged in the filter element seat 11 and can move along the slide rails; a first opening is formed in the middle of the sliding unit 12, and a plurality of trapezoidal stoppers 121 are arranged on two sides of the first opening; the fixed locking unit 13 is positioned above the sliding unit 12 and fixed with the filter element seat 11, and a second elongated slot-shaped opening is formed in the middle of the fixed locking unit. The water circuit board 10 is also provided with a motor 14 and a cam 15, the motor is positioned at one side of the filter element seat, and the cam is arranged on the motor; the sliding unit 12 is provided with a push rod 122 on one side facing the motor, the protruding part of the cam cooperates with the push rod, the cam pushes the sliding unit to slide inwards, and the inner side of the sliding unit is provided with a return spring 16.

The boss 21 on the filter bottle 1 is inserted in alignment with the second opening in the middle of the fixed locking unit 13, and the trapezoid positioning blocks 22 on both sides of the boss slide downwards along the trapezoid stopper 121 of the sliding unit, so that the sliding unit slides inwards along the slide rail, i.e. away from the motor 14. When the filter cartridge is inserted into position, the slide unit 12 is moved back towards the motor 14 by the return spring 16, returning to the position before insertion of the filter cartridge. Therefore, the trapezoidal stop block 121 of the sliding unit is blocked on the trapezoidal positioning block 22 of the filter bottle to limit and fix the filter element up and down.

Raw water a sequentially enters the filter flask 1 from the first water inlet port 23 of the filter flask cover 2 and the first water inlet hole 81 of the water path conversion piece, flows along the first water inlet channel 61, enters from the side surface of the front filter element, is filtered by the PP cotton layer 31 and the activated carbon layer 32, and then flows out of primary filtered water b from the first water outlet channel 62, the first water outlet hole 82 and the first water outlet port 24 of the filter flask cover 2; the initial filter water b flows according to the water path design, flows through the water inlet electromagnetic valve 17 and the booster pump 18, and the water pressurized by the booster pump 18 enters the first sleeve from the second water inlet connector 25 of the filter flask cover and the second water inlet hole 83 of the water path conversion piece, and because the water cannot enter the RO membrane from the outer side, the water flows to the bottom of the RO membrane 41 along the second water inlet channel 63 and enters from the end face of the bottom of the RO membrane; after water flow is filtered by the RO membrane 41, the generated pure water c enters the central tube through the water inlet hole 44 in the central tube 43, sequentially flows out from the first water outlet column 45 at the top end of the central tube, passes through the one-way valve 19 and the high-voltage switch 110, and flows out from the water outlet tap 111; the waste water d generated by the RO membrane 41 is discharged from the waste water channel 64 between the second water outlet column of the top cover 42 and the first water outlet column of the central tube, and is connected with the waste water port through the waste water electromagnetic valve 112.

Example 2

The rest of the structure of this embodiment is the same as that of embodiment 1, only the front filter element is the ceramic filter layer 33, the ceramic filter layer 33 is an annular structure, the first sleeve 5 is located in the ceramic filter layer 33, the RO membrane module is located in the first sleeve 5, and the first sleeve 5 separates two independent water flow channels between the inner side of the ceramic filter layer 33 and the outer side of the RO membrane module.

A first water inlet channel 61 is arranged between the outer side of the ceramic filter layer 33 and the inner wall of the filter bottle, and a first water outlet channel 62 is arranged between the inner side of the ceramic filter layer 33 and the outer wall of the first sleeve 5; a second water inlet channel 63 is arranged between the outer side of the RO membrane and the inner wall of the first sleeve 5 and communicated with the bottom end face of the RO membrane; a second water outlet channel 65 is arranged in a central tube 43 of the RO membrane assembly, a first water outlet column 45 communicated with the second water outlet channel is arranged at the top end of the central tube 43, a second water outlet column 46 is arranged in the middle of the top cover 42, the first water outlet column 45 is arranged in the second water outlet column 46, and a wastewater channel 64 is arranged between the first water outlet column and the second water outlet column 46.

Raw water a sequentially enters the filter flask 1 from the first water inlet port 23 of the filter flask cover 2 and the first water inlet hole 81 of the water path conversion piece, flows along the first water inlet channel 61, enters from the side surface of the ceramic filter layer 33, is filtered by the ceramic filter layer 33, and then flows out of primary filtered water b from the first water outlet channel 62, the first water outlet hole 82 and the first water outlet port 24 of the filter flask cover 2; the initial filter water b flows according to the water path design, flows through the water inlet electromagnetic valve 17 and the booster pump 18, and the water pressurized by the booster pump 18 enters the first sleeve from the second water inlet connector 25 of the filter flask cover and the second water inlet hole 83 of the water path conversion piece, and because the water cannot enter the RO membrane from the outer side, the water flows to the bottom of the RO membrane 41 along the second water inlet channel 63 and enters from the end face of the bottom of the RO membrane; after water flow is filtered by the RO membrane 41, the generated pure water c enters the central tube through the water inlet hole 44 in the central tube 43, sequentially flows out from the first water outlet column 45 at the top end of the central tube, passes through the one-way valve 19 and the high-voltage switch 110, and flows out from the water outlet tap 111; the waste water d generated by the RO membrane 41 is discharged from the waste water channel 64 between the second water outlet column of the top cover 42 and the first water outlet column of the central tube, and is connected with the waste water port through the waste water electromagnetic valve 112.

Claims (5)

1. A RO membrane composite filter element convenient to install comprises a filter flask and a filter flask cover which are fixedly connected; the pre-filter element assembly and the RO membrane assembly are arranged in the filter flask, the pre-filter element assembly is of an annular structure, the RO membrane assembly is arranged in the pre-filter element assembly and comprises an RO membrane and a top cover, and the top cover is sleeved on the RO membrane and seals the top end face of the RO membrane; a central pipe is arranged in the RO membrane, and water inlet holes are formed in the circumference of the central pipe;

the method is characterized in that: the first sleeve is positioned between the front filter element assembly and the RO membrane assembly and divides two independent water flow channels between the inner side of the front filter element assembly and the outer side of the RO membrane assembly; a boss is arranged in the middle of the filter bottle cover, positioning blocks are arranged on two sides of the boss, 5 water inlet and outlet interfaces are arranged in the boss and comprise a first water inlet interface, a first water outlet interface, a second water inlet interface, a wastewater interface and a pure water interface, and a self-sealing water assembly is arranged in each water inlet and outlet interface; a waterway conversion piece is also fixed in the filter bottle cap, and 5 water inlet and outlet holes are arranged on the waterway conversion piece and are communicated with the water inlet and outlet interfaces in the boss; a first water outlet channel is arranged between the inner side of the preposed filter element component and the outer wall of the first sleeve and is communicated with a first water outlet interface; and a second water inlet channel is arranged between the outer side of the RO membrane and the inner wall of the first sleeve and communicated with a second water inlet interface, and the second water inlet channel is communicated with the bottom end face of the RO membrane.

2. An RO membrane composite cartridge for ease of installation according to claim 1 wherein: a first water inlet channel is formed between the outer side of the front filter element assembly and the inner wall of the filter bottle and communicated with a first water inlet connector; the interior of the central pipe of the RO membrane assembly is provided with a second water outlet channel which is communicated with a pure water interface; the top end of the central tube is provided with a first water outlet column communicated with the second water outlet channel, the middle of the top cover is provided with a second water outlet column, the first water outlet column is arranged in the second water outlet column, and a wastewater channel is arranged between the first water outlet column and the second water outlet column and communicated with a wastewater interface.

3. An RO membrane composite cartridge for ease of installation according to claim 1 wherein: the 5 water inlet and outlet holes on the waterway conversion piece are respectively a first water inlet hole, a first water outlet hole, a second water inlet hole, a waste water hole and a pure water hole; the water path conversion part is provided with 4 circles of concentric circular protective walls towards one side of the RO membrane component and is divided into a first protective wall, a second protective wall, a third protective wall and a fourth protective wall from inside to outside, a first water inlet hole is communicated with the outside of the fourth protective wall, a first water outlet hole is communicated with the third protective wall and the fourth protective wall, a second water inlet hole is communicated with the second protective wall and the third protective wall, a waste water hole is communicated with the first protective wall and the second protective wall, and a pure water hole is communicated with the inside of the first protective wall.

4. An RO membrane composite cartridge for ease of installation according to claim 1 wherein: leading filter element group spare includes the cotton layer of PP and the activated carbon layer of coaxial setting, and the activated carbon layer is located the cotton in situ portion of PP.

5. An RO membrane composite cartridge for ease of installation according to claim 1 wherein: the preposed filter element is an annular ceramic filter layer.

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