CN112551711A

CN112551711A - Water purifier

Info

Publication number: CN112551711A
Application number: CN201910919844.9A
Authority: CN
Inventors: 周有福; 游冬根; 张进; 廖榆敏
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2021-03-26
Anticipated expiration: 2039-09-26
Also published as: CN112551711B

Abstract

The invention discloses a water purifier, which comprises: a mid-shell defining a plurality of filter cartridges; a plurality of filter elements, each of said filter elements being disposed within one of said filter cartridges, said filter elements comprising: the filter flask is embedded in the filter cylinder and defines a water inlet and a water outlet; the water distribution sleeve is arranged in the filter bottle and is provided with a first end and a second end which are mutually communicated and a water through hole which penetrates through the wall thickness of the water distribution sleeve; a filter membrane housed within the water-dividing sleeve. According to the water purifier disclosed by the embodiment of the invention, the water distributing sleeve for distributing water flow is arranged in the filter flask, so that the water flow can more uniformly enter different areas of the filter membrane, the integral utilization rate of the filter membrane is improved, and the service life of the water purifier is further prolonged.

Description

Water purifier

Technical Field

The invention relates to the technical field of water purification, in particular to a water purifier.

Background

The filter cartridge generally comprises: the filter flask with place the exposed filter membrane in the filter flask in, in the use, rivers rely on inside the filter media of dependence rivers pressure infiltration entering. Generally, the water passing amount of the filter membrane close to the water inlet of the filter element is large, and the water passing amount of the filter membrane far away from the water inlet of the filter element is small.

Different areas of the filter membrane of the filter element have different water passing amounts, so that the use conditions of the filter membrane in different areas are different, and the filter membrane cannot obtain the optimal use period.

Disclosure of Invention

The present invention aims to solve at least one of the above technical problems to a certain extent.

Therefore, the invention provides the water purifier, the filter element of the water purifier is long in service cycle, and the water purifier is low in service cost.

The water purifier of the embodiment of the invention comprises: a mid-shell defining a plurality of filter cartridges; a plurality of filter elements, each of said filter elements being disposed within one of said filter cartridges, said filter elements comprising: the filter flask is embedded in the filter cylinder and defines a water inlet and a water outlet; the water distribution sleeve is arranged in the filter bottle and is provided with a first end and a second end which are mutually communicated and a water through hole which penetrates through the wall thickness of the water distribution sleeve; a filter membrane housed within the water-dividing sleeve.

According to the water purifier disclosed by the embodiment of the invention, the water distributing sleeve for distributing water flow is arranged in the filter flask, so that the water flow can more uniformly enter different areas of the filter membrane, the integral utilization rate of the filter membrane is improved, and the service life of the water purifier is further prolonged.

In addition, the water purifier according to the embodiment of the invention may further have the following additional technical features:

in some embodiments of the invention, the filter element further comprises a first end cap and a second end cap connected to both ends of the water distribution sleeve, the first end cap being detachably connected to one end of the water distribution sleeve and the second end cap and the other end of the water distribution sleeve.

In an alternative embodiment, the first end cap includes: a first end plate and a first annular plate forming a circumferential direction of the first end plate; the second end cap includes: a second end plate and a second annular plate formed circumferentially of the second end plate.

In some embodiments of the present invention, a front filter element, a rear filter element and a reverse osmosis filter element are respectively disposed in the plurality of filter cartridges, and a water path of the reverse osmosis filter element is respectively connected to water paths of the front filter element and the rear filter element.

In an alternative embodiment, the filter bottle is divided into a first water inlet channel and a first water outlet channel by the filter membrane of the preposed filter element, and the filter bottle is integrally formed into a first water passing pipe and a second water passing pipe; the first water inlet channel is communicated with the first water passing pipe, and the first water outlet channel is communicated with the second water passing pipe.

In an optional embodiment, the filter bottle of the front filter element is also integrally formed with a third water passing pipe, and the third water passing pipe is communicated with the second water passing pipe.

In a further optional embodiment, the second water passing pipe comprises a first outlet and a second outlet, one of the first outlet and the second outlet is communicated with the third water passing pipe, and the other one directly conveys domestic water outwards.

In an optional embodiment, the filter bottle of the post-filter element is divided into a second water inlet channel and a second water outlet channel by the filter membrane of the post-filter element, and the filter bottle of the post-filter element is integrally formed into a fourth water passing pipe and a fifth water passing pipe; and the outlet of the fourth water passing pipe is communicated with the second water inlet channel, and the inlet of the fifth water passing pipe is communicated with the second water outlet channel.

In an optional example, the filter bottle of the rear filter element is also integrally formed with a sixth water passing pipe, and the sixth water passing pipe is communicated with the concentrated water outlet of the reverse osmosis filter element.

In a further optional example, the sixth water passing pipe comprises a first section and a second section which are connected in sequence, wherein the first section of the fourth water passing pipe and the first section of the sixth water passing pipe extend along a first direction X, and the second section of the fifth water passing pipe and the second section of the sixth water passing pipe extend along a second direction Y.

In a further optional example, a seventh water passing pipe is further integrally formed on the filter flask of the rear filter element, the seventh water passing pipe is communicated with the fourth water passing pipe, and the seventh water passing pipe is connected with a pressure tank.

In a further optional example, an eighth water passing pipe is further integrally formed on the filter flask of the rear filter element, the eighth water passing pipe is communicated with the fourth water passing pipe, and the high-pressure switch is connected to the eighth water passing pipe.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a water purifier according to some embodiments of the present disclosure;

FIG. 2 is a schematic view of a portion of a filter cartridge according to some embodiments of the invention;

FIG. 3 is a schematic view of the filter cartridge of FIG. 2 at another angle;

FIG. 4 is a cross-sectional view of a filter cartridge according to one embodiment of the present invention;

FIG. 5 is a cross-sectional view of a filter cartridge according to another embodiment of the present invention;

FIG. 6 is a cross-sectional view of a water purifier according to some embodiments of the present disclosure;

FIG. 7 is a perspective view of a pre-filter cartridge filter bottle according to some embodiments of the invention;

FIG. 8 is a partial cross-sectional view of a pre-filter cartridge filter bottle according to some embodiments of the invention;

FIG. 9 is a perspective view of a post-cartridge filter bottle according to some embodiments of the present disclosure;

FIG. 10 is an angled partial cross-sectional view of a post-cartridge filter flask according to some embodiments of the present invention;

fig. 11 is another angled, partial cross-sectional view of a post-cartridge filter bottle according to some embodiments of the invention.

Reference numerals:

a water purifier 100;

a middle shell 10; a filter cartridge 11;

a filter element 20; a filter flask 21; a water inlet 211; a water outlet 212; a bottle cap 213; a water distribution sleeve 22; a water passage hole 221; a filter membrane 23; a first end cap 24; a first end plate 241; a first annular plate 242; a second end cap 25; a second end plate 251; a second annular plate 252;

a front filter element 30; a first water inlet passage 31; a first water outlet passage 32; a first water passing pipe 33; a second water passing pipe 34; a first outlet 341; a second outlet 342; a third water passing pipe 35; a water inlet solenoid valve 36;

a rear filter element 40; a second water inlet passage 41; a second water outlet passage 42; a fourth water passing pipe 43; a fifth water passing pipe 44; a sixth water passing pipe 45; a first section 451; a second section 452; a seventh water passing pipe 46; an eighth water passing pipe 47;

a reverse osmosis filter element 50;

a housing 60;

a top cover 70;

a base plate 80.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Referring to fig. 1 to 11, a water purifier 100 according to an embodiment of the present invention is described, and as shown in fig. 1, the water purifier 100 includes a middle case 10 and a plurality of cartridges 20. The middle shell 10 is used for receiving functional devices such as a filter element 20, a circuit board assembly, an adapter and a booster pump of the water purifier 100. In addition, the water purifier 100 further comprises a housing 60 sleeved outside the middle shell 10, a top cover 70 for closing the top of the housing 60, and a base 80 for closing the bottom of the housing 60, i.e. one end of the middle shell 10 is closed by the top cover 70, and the other end is closed by the base 80.

The middle shell 10 defines a plurality of filter cartridges 11, and each filter element 20 is provided in one of the filter cartridges 11. I.e. the filter element is loaded in the filter cartridge 11. Referring to fig. 6, the filter cartridge 20 may be a front filter cartridge 30, a reverse osmosis filter cartridge 50, and a rear filter cartridge 40.

Specifically, referring to fig. 1-5, each cartridge 20 includes a filter flask 21, a water-dividing sleeve 22, and a filter membrane 23. Wherein the filter flask 21 is embedded in the filter cartridge 11 and defines a water inlet 211 and a water outlet 212. The filter flask 21 may further comprise a cap 213 that is removably attached to the filter flask 213, thereby facilitating replacement of the filter membrane 23 from within the filter flask 21.

The water dividing sleeve 22 is built in the filter flask 21, and the water dividing sleeve 22 has a first end and a second end communicating with each other and a water passage hole 221 penetrating the wall thickness of the water dividing sleeve 22. That is, the water diversion sleeve 22 is a cylindrical structure with two open ends, at least one part of the filter membrane 23 is covered by the water diversion sleeve 22, and the water amount entering different areas of the filter membrane 23 is adjusted through the water diversion sleeve 22.

Wherein the water flow can penetrate from the outside to the inside of the filter membrane 23. Thus, a water flow channel is formed between the inner wall of the filter bottle 21 and the outer wall of the water diversion sleeve 22, and water flow enters the filter membrane 23 under the action of water pressure for filtration. After water flow enters from the water inlet 211 of the filter flask 21, the water diversion sleeve 22 guides the water flow into the water flow passage and disperses the water flow to different areas of the filter membrane 23 through the water through holes 221, so that the filter membranes 23 in different areas can obtain enough water, and the filter membrane 23 is fully and effectively used.

Of course, the water flow may also penetrate from the inside to the outside of the filter membrane 23. In this case, the water distribution sleeve 22 will serve to adjust the flow resistance of the filtered water flowing out of the filter membrane 23, thereby indirectly serving to adjust the amount of the filtered water entering different regions of the filter membrane 23.

The shape of the water passage hole 221 may be one or more of a circle, an oval, a square, a diamond, and a polygon.

Therefore, according to the water purifier 100 provided by the embodiment of the invention, the water diversion sleeve 22 for dispersing water flow is arranged in the filter flask 21, so that the water flow can more uniformly enter different areas of the filter membrane 23, the overall utilization rate of the filter membrane 23 is improved, and the service life of the water purifier 100 is further prolonged.

It is understood that the water pressure is large near the water inlet 211 of the filter flask 21, and therefore, the flow surface of the water passage hole 221 near the water inlet 211 is set small; since the water pressure at the water inlet 211 distant from the filter flask 21 is small, the flow surface of the water passage hole 221 distant from the inlet is set to be large. Therefore, water flow can enter different areas of the filter membrane 23 under different water pressures and different circulation surface conditions respectively, the water passing amount of the different areas of the filter membrane 23 is approximately the same, and the service life of the filter membrane 23 is integrally prolonged.

In an alternative embodiment, the cartridge 20 further includes a first end cap 24 and a second end cap 25 attached to the ends of the water distribution sleeve 22, the first end cap 24 being removably attached to the first end of the water distribution sleeve 22 and the second end of the second end cap 25 and the water distribution sleeve 22. In this way, the filter membrane 23 can be wrapped by the first end cap 24, the second end cap 25 and the water distribution sleeve 22, and the degree of freedom of the filter membrane 23 in the axial direction is defined by the first end cap 24 and the second end cap 25.

In an alternative embodiment, the first end cap 24 includes: a first end plate 241 and a first annular plate 242 forming a circumferential direction of the first end plate 241; the second end cap 25 includes: a second end plate 251, and a second annular plate 252 formed at the circumference of the second end plate 251. That is, the two ends of the filter membrane 23 are wrapped by the first annular plate 242 and the second annular plate 252, so that the water flow at the two ends of the filter membrane 23 is cut off, and thus the water can be forced to flow to the middle of the filter membrane 23, and the water passing amount of the filter membrane 23 in different areas can be further adjusted.

In some embodiments of the present invention, as shown in fig. 6, a front filter element 30, a rear filter element 40 and a reverse osmosis filter element 50 are respectively disposed in the plurality of filter cartridges 11, and a water path passing through the reverse osmosis filter element 50 is respectively connected to water paths of the front filter element and the rear filter element 40. The front filter element 30, the rear filter element 40 and the reverse osmosis filter element 50 all include a fixed structure of the filter element 20, a filter bottle 21, a filter membrane 23, a bottle cap 213 and a water dividing sleeve 24, and it can be understood by those skilled in the art that the filter membrane 23 property of different filter elements 20 is different to realize different filtering performances.

In order to simplify the pipeline, the internal pipeline connection of the water purifier 100 is clear, and the installation and disassembly efficiency is improved. The inventor optimizes the structures of the filter bottles 21 of the front filter element 30 and the rear filter element 40 respectively.

In an alternative embodiment, as shown in fig. 6 in combination with fig. 7 and 8, the filter membrane 23 of the pre-filter cartridge 30 divides the filter flask 21 into a first water inlet channel 31 and a first water outlet channel 32, and the filter flask 21 is integrally formed with a first water passing pipe 33 and a second water passing pipe 34. The first water inlet channel 31 is communicated with a first water passing pipe 33, and the first water outlet channel 32 is communicated with a second water passing pipe 34.

That is, the water to be filtered is introduced into the first water inlet passage 31 of the pre-filter cartridge 30 through the first water passing pipe 33, and the filtered water of the first water outlet passage 32 is led out through the second water passing pipe 34.

In other words, the first water pipe 33 of the filter bottle 21 of the front filter element 30 is connected with a water source, water to be filtered is introduced into the filter cavity of the front filter element 30, and the second water pipe 34 leads out filtered water of the front filter element 30. Namely, the water paths for entering and exiting the front filter element 30 can be clearly distinguished through the first water passing pipe 33 and the second water passing pipe 34, so that a user or an installer can clearly see the water path direction of the front filter element 30, and the installation and the maintenance are convenient. In addition, since the water paths are switched by the first and second

water passing pipes

33 and 34, the number of water path switching joints used is reduced.

Therefore, according to the front filter element 30 of the water purifier 100 provided by the embodiment of the invention, the first water passing pipe 33 and the second water passing pipe 34 are integrally formed on the filter bottle 21, and the switching of the water inlet and outlet paths of the front filter element 30 is facilitated through the first water passing pipe 33 and the second water passing pipe 34, so that the water path connection is clearer, errors are not easy to occur, the use of a water path switching joint is reduced, and the manufacturing cost is reduced.

In a further alternative embodiment, as shown in fig. 6 in combination with fig. 7 and 8, the filter flask 21 of the front cartridge 30 is also integrally formed with a third water flow pipe 35, and the third water flow pipe 35 is in communication with the second water flow pipe 34. The third water passing pipe 35 receives the filtered water in the second water passing pipe 34, wherein the third water passing pipe 35 can be used for supplying water to the next stage of filter element or directly supplying domestic water to the outside.

In a further alternative example, as shown in fig. 6 in combination with fig. 7 and 8, the second water passing pipe 34 includes a first outlet 341 and a second outlet 342, one of the first outlet 341 and the second outlet 342 is communicated with the third water passing pipe 35, and the other is directly used for delivering domestic water to the outside. That is, the water in the second water passing pipe 34 can flow out in two directions, one part of the water is conveyed to the third water passing pipe 35, and the other part of the water is directly sent out. That is, the second and third

water passing pipes

34 and 35 are formed in the filter flask 21, so that the filtered water of the pre-filter element is delivered in different directions, and multi-purpose water is obtained.

In an alternative example, a water inlet solenoid valve 36 is arranged between the inlets of the second water passing pipe 34 and the third water passing pipe 35. Namely, the on-off of the second water passing pipe 34 and the third water passing pipe 35 is controlled by the water inlet electromagnetic valve 36. Wherein, the inlet of the water inlet solenoid valve 36 is communicated with one of the outlets of the second water passing pipe 34, and the outlet of the water inlet solenoid valve 36 is communicated with the inlet of the third water passing pipe 35. In order to facilitate the connection of the water inlet solenoid valve 36 with the second water pipe 34 and the third water pipe 35, the water inlet solenoid valve 36 may be fixed on the filter flask 21, for example, a positioning column with a screw hole is provided on the filter flask 21, so that the water inlet solenoid valve 36 may be locked on the filter flask 21 by a screw.

In a further alternative embodiment, as shown in fig. 7, a first water passing pipe 33, a second water passing pipe 34 and a third water passing pipe 35 are formed at the bottom of the filter flask 21, and the second water passing pipe 34 is located between the first water passing pipe 33 and the third water passing pipe 35. Thus, the water flow can be introduced into the outside (first water inlet passage 31) of the filter flask 21 of the front filter element through the first water passing pipe 33, filtered by the filter membrane 23, and then flowed into the inside (first water outlet passage 32) of the filter flask 21 of the front filter element. In other words, the water flow penetrates from the outside to the inside, and the first water outlet passage 32 is formed in the radial middle of the filter flask 21. By properly arranging the positions of the first, second and third

water passing pipes

33, 34 and 35, the first and second

water passing pipes

33 and 34 are conveniently communicated with the first water inlet passage 31 and the first water outlet passage 32, respectively.

In an alternative embodiment, as shown in fig. 9-10, the filter membrane 23 of the post-filter element 40 separates the filter flask 21 into a second inlet channel 41 and a second outlet channel 42. The pure water filtered by the reverse osmosis filter element 50 enters the second water inlet channel 41 of the filter bottle 21 of the post-filter element 40, is filtered again by the filter membrane 23, and then flows out of the second water outlet channel 42 to become drinking water.

As shown in fig. 9 to 10, the filter flask 21 of the rear filter element 40 integrally forms a fourth water passing pipe 43 and a fifth water passing pipe 44, wherein an inlet of the fourth water passing pipe 43 is communicated with the pure water outlet of the reverse osmosis filter element 50, an outlet of the fourth water passing pipe 43 is communicated with the second water inlet passage 41, and an inlet of the fifth water passing pipe 44 is communicated with the second water outlet passage 42. That is, pure water is introduced into the rear filter element 40 through the fourth water flow pipe 43, and water re-filtered by the rear filter element 40 is discharged through the fifth water flow pipe 44. In other words, the fourth water passing pipe 43 and the fifth water passing pipe 44 are integrated with the filter flask 21 of the rear filter element 40, and are used for connecting the water path between the reverse osmosis filter element 50 and the rear filter element 40 and guiding out the drinking water. In order to improve the connection efficiency of the pipes, names of water paths may be identified on the fourth and

fifth water pipes

43 and 44.

The water path connection efficiency between the rear filter element 40 and the reverse osmosis filter element 50 is improved through the fourth water passing pipe 43 and the fifth water passing pipe 44, and the usage of PE pipes and water path conversion joints is reduced.

Therefore, according to the rear filter element 40 of the water purifier 100 in the embodiment of the invention, the fourth water passing pipe 43 and the fifth water passing pipe 44 are integrally formed on the filter flask 21, so that the connection and the conversion of the water inlet and outlet paths of the rear filter element 40 are facilitated, the use of the water path conversion joint is reduced, and the manufacturing cost is reduced.

In some embodiments of the present invention, as shown in fig. 9-10, the filter flask 21 of the rear cartridge 40 further integrally forms a sixth water flow tube 45, and the sixth water flow tube 45 communicates with the concentrate outlet of the reverse osmosis cartridge 50. That is, the sixth water passing pipe 45 of the rear cartridge 40 has a function of leading out the concentrate water in the reverse osmosis cartridge 50. In other words, the concentrate of the reverse osmosis cartridge 50 is discharged to the outside through the sixth water passing pipe 45. In this embodiment, the filter flask 21 of the rear filter element 40 is integrally provided with a fourth water passing pipe 43, a fifth water passing pipe 44 and a sixth water passing pipe 45, a pure water outlet of the reverse osmosis filter element 50 is connected with the fourth water passing pipe 43, a concentrated water outlet of the reverse osmosis filter element 50 is connected with the sixth water passing pipe 45, a concentrated water flow path of the reverse osmosis filter element 50 is transferred to the rear filter element 40 through the sixth water passing pipe 45, the reverse osmosis filter element 40 is externally conveyed, that is, the output of the concentrated water and the output of the drinking water are all sent out from the rear filter element 40, the connection path of the pipeline is simplified, and the connection of the pipeline is facilitated.

In an alternative embodiment, as shown in fig. 9-11, the sixth flow conduit 45 includes a first section 451 and a second section 452 connected in series, wherein the first sections 451 of the fourth flow conduit 43 and the sixth flow conduit 45 extend in the first direction X, and the second sections 452 of the fifth flow conduit 44 and the sixth flow conduit 45 extend in the second direction Y. That is, the pure water enters the filter flask 21 of the rear filter element 40 from the first direction X, is filtered by the rear filter element 40, and is then discharged to the outside from the second direction Y, and similarly, the wastewater enters the sixth water passing pipe 45 from the first direction X and is discharged to the outside from the second direction Y. That is, the fourth, fifth, and sixth

water passing pipes

43, 44, and 45 of the rear cartridge 40 switch the flow directions of the pure water path and the concentrated water path of the reverse osmosis cartridge 50. In other words, the distribution directions of the fourth water passing pipe 43, the fifth water passing pipe 44 and the sixth water passing pipe 45 can be designed according to the connection condition of the internal pipelines of the water purifier 100, so that the internal pipelines of the water purifier 100 are clearly distributed, and the pipelines can be conveniently disassembled and assembled.

In an alternative embodiment, as shown in fig. 9-11, a seventh water pipe 46 is integrally formed on the filter flask 21 of the rear filter element 40, the seventh water pipe 46 is communicated with the fourth water pipe 43, and the seventh water pipe 46 is connected with a pressure tank (not shown). In this embodiment, the fourth water passing pipe 43 simultaneously supplies pure water to the seventh water passing pipe 46 and the second water supply passage 41 of the filter flask 21 of the post-filter cartridge 40. In other words, in the water production process of water purifier 100, the pure water can flow to the overhead tank and be saved, like this, in the water production process, the pure water of prestore can reverse transport to second inhalant canal 41 in the overhead tank, guarantees that water purifier 100 is to the drinking water that outer transport flow is enough big.

It will be appreciated by those skilled in the art that the seventh water passing pipe 46 in the present embodiment is an alternative, and for a large-flux model, the seventh water passing pipe 46 may be in an off state, i.e., pure water is not stored in the pressure tank. For a small-flux model, the seventh water pipe 46 may be in a conducting state, and when the user does not use water, the water purifier 100 maintains a water production state and stores pure water in the pressure tank in advance; in the case where the user uses water, a sufficient amount of water can be maintained to supply the water to the outside. Wherein, the overhead tank can be external, does not install in purifier 100 promptly, carries the pure water to the overhead tank through fourth water pipe 43.

Further alternatively, as shown in fig. 9 to 11, the seventh water passing pipe 46 extends in the same direction as the fifth water passing pipe 44. In this embodiment, the fifth draft tube 44, the second section 452 of the sixth draft tube 45, and the seventh draft tube 46 all extend in the second direction Y. In other words, the outlets of the fifth water passing pipe 44, the sixth water passing pipe 45 and the seventh water passing pipe 46 are all located on the same side of the filter flask 21, so that the rear filter element 40 is convenient to be externally connected, the pipeline connection path is simplified, the dismounting efficiency is improved, and the water leakage point is convenient to overhaul.

In an alternative embodiment, the filter flask 21 of the rear filter element 40 is integrally formed with an eighth water passing pipe 47, the eighth water passing pipe 47 is communicated with the fourth water passing pipe 43, and the high pressure switch is connected to the eighth water passing pipe 47. The integrated eighth water pipe 47 is arranged on the filter flask 21 of the rear filter element 40, the water pressure of the eighth water pipe 47 is the same as that of the fourth water pipe 43, so that the high-pressure switch is assembled on the fifth water pipe 44 to accurately monitor the water pressure of the pure water waterway, and the water purifier 100 judges whether to produce water according to the monitoring signal of the pressure switch. In this embodiment, the eighth water pipe 47 communicated with the fourth water pipe 43 is integrated on the filter flask 21 of the rear filter element 40, so that the high-pressure switch can be assembled on the rear filter element 40, the problem of the installation position of the high-pressure switch is solved, and the components inside the water purifier 100 are distributed more reasonably and orderly.

Further alternatively, the eighth water passing pipe 47 extends in the same direction as the fourth water passing pipe 43. In this embodiment, the fourth water flow pipe 43, the first section 451 of the sixth water flow pipe 45, and the eighth water flow pipe 47 all extend in the first direction X. In other words, the inlet side of each water path of the rear filter element 40 is located at one side of the second filter bottle 21, and the outlet side of each water path of the rear filter element 40 is located at the other side of the filter bottle 21 of the rear filter element 40. From this, with the business turn over water route rational distribution and the overall arrangement of rearmounted filter core 40, further simplify the tube coupling route, improve dismouting efficiency, the easy access water leakage point.

In a further alternative, as shown in fig. 9-11, a fourth water passing pipe 43, a fifth water passing pipe 44, a sixth water passing pipe 45, a seventh water passing pipe 46 and an eighth water passing pipe 47 are all arranged at the bottom of the filter flask 21 of the rear filter element 40. That is to say, all arrange the business turn over water route of rearmounted filter core 40 in the bottom of filter flask 21 of rearmounted filter core 40, so, make things convenient for the connection of business turn over water route pipeline of rearmounted filter core 40 more for the pipeline distributes more orderly.

In the description of the present invention, it is to be understood that the terms "bottom", "top", "inside", "outside", "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims

1. A water purifier, comprising:

a mid-shell defining a plurality of filter cartridges;

a plurality of filter elements, each of said filter elements being disposed within one of said filter cartridges, said filter elements comprising:

the filter flask is embedded in the filter cylinder and defines a water inlet and a water outlet;

the water distribution sleeve is arranged in the filter bottle and is provided with a first end and a second end which are mutually communicated and a water through hole which penetrates through the wall thickness of the water distribution sleeve;

a filter membrane housed within the water-dividing sleeve.

2. The water purifier according to claim 1, wherein said filter element further comprises a first end cap and a second end cap connected to both ends of said water dividing jacket, said first end cap being detachably connected to one end of said water dividing jacket and to the other ends of said second end cap and said water dividing jacket.

3. The water purifier of claim 2, wherein the first end cap comprises: a first end plate and a first annular plate forming a circumferential direction of the first end plate; the second end cap includes: a second end plate and a second annular plate formed circumferentially of the second end plate.

4. The water purifier according to claim 1, wherein a plurality of filter cartridges are respectively provided with a front filter element, a rear filter element and a reverse osmosis filter element, and a water path of the reverse osmosis filter element is respectively connected with a water path of the front filter element and a water path of the rear filter element.

5. The water purifier as recited in claim 4, wherein said filter bottle is divided into a first water inlet channel and a first water outlet channel by a filter membrane of said pre-filter element, and said filter bottle is integrally formed with a first water passing pipe and a second water passing pipe; the first water inlet channel is communicated with the first water passing pipe, and the first water outlet channel is communicated with the second water passing pipe.

6. The water purifier as recited in claim 5, wherein said filter flask of said front filter element is further integrally formed with a third water pipe, said third water pipe being in communication with said second water pipe.

7. The water purifier as recited in claim 6, wherein said second water pipe comprises a first outlet and a second outlet, one of said first outlet and said second outlet is connected to said third water pipe, and the other is directly used for transporting domestic water outwards.

8. The water purifier as recited in claim 4, wherein the filter bottle is divided into a second water inlet channel and a second water outlet channel by the filter membrane of the post-filter element, and the filter bottle of the post-filter element is integrally formed with a fourth water passing pipe and a fifth water passing pipe; and the outlet of the fourth water passing pipe is communicated with the second water inlet channel, and the inlet of the fifth water passing pipe is communicated with the second water outlet channel.

9. The water purifier as recited in claim 8, wherein said post-filter cartridge filter bottle further integrally forms a sixth water conduit, said sixth water conduit communicating with said reverse osmosis filter cartridge concentrate outlet.

10. The water purifier according to claim 9, wherein said sixth water pipe comprises a first section and a second section connected in series, wherein said first section of said fourth water pipe and said sixth water pipe extends along a first direction X, and said second section of said fifth water pipe and said sixth water pipe extends along a second direction Y.

11. The water purifier as recited in claim 8, wherein a seventh water pipe is integrally formed on the filter flask of the rear filter element, the seventh water pipe is communicated with the fourth water pipe, and the seventh water pipe is connected with a pressure tank.

12. The water purifier as recited in claim 11, wherein an eighth water pipe is integrally formed on the filter flask of the rear filter element, the eighth water pipe is communicated with the fourth water pipe, and a high pressure switch is connected to the eighth water pipe.