CN112675593A

CN112675593A - Filtering component, raw water tank, water tank component and water purifying equipment

Info

Publication number: CN112675593A
Application number: CN201910996236.8A
Authority: CN
Inventors: 胡承欢; 曾振杰; 王会会
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: 2019-10-18
Filing date: 2019-10-18
Publication date: 2021-04-20
Anticipated expiration: 2039-10-18
Also published as: CN112675593B

Abstract

The invention relates to the technical field of filtration, and provides a filter assembly, a raw water tank, a water tank assembly and water purification equipment. A filter assembly, comprising: a cylindrical screen configured to be attached to a first end of the duct and to extend in a longitudinal direction of the duct; the filter screen cover is sleeved outside the cylindrical filter screen, a liquid inlet is formed between the edge of the filter screen cover and the pipeline, a liquid outlet is formed at the second end of the pipeline, and the liquid level of the liquid outlet is lower than that of the liquid inlet so as to form a siphon channel passing through the cylindrical filter screen between the liquid inlet and the liquid outlet. Install this filtering component behind the pipeline, can form the siphon passageway, liquid circulation in-process under the siphon effect with the not different positions of tube-shape filter screen fully contact, and then guarantee the filter effect of tube-shape filter screen. The filter assembly has larger filter screen area and better filtering effect. And because the cylindrical filter screen is arranged at the end part of the pipeline, the cylindrical filter screen can be cleaned only by removing the filter screen cover, so that the cylindrical filter screen is convenient to clean, and the blockage of the cylindrical filter screen can be avoided.

Description

Filtering component, raw water tank, water tank component and water purifying equipment

Technical Field

The invention relates to the technical field of filtration, in particular to a filter assembly, a raw water tank, a water tank assembly and water purification equipment.

Background

Water plays an important role in our life and is a source of life, and according to research reports, polluted impurities in drinking water can be roughly divided into germs, heavy metals, inorganic matters and organic matters, so that unclean water can cause certain harm to human health after long-term drinking. In order to improve the quality of drinking water, more and more water purification devices are used in real time.

At present, most of water in home is generally treated from a water supply plant and then is conveyed to water purification equipment of each household through an external pipeline. Wherein, water after the general processing still has surplus chlorine or other pollution impurity, and this kind of water gets into water purification unit and can lead to impurity to pile up in the equipment, and then influences water purification unit's water purification effect, reduces water purification unit life, even produces the potential safety hazard in utilization. Based on this, before the core filter element of the water purifying device, a filter screen is often additionally arranged in the pipeline. The filter screen can be arranged in an external pipeline of the water purifying device and can also be arranged in an internal pipeline of the water purifying device. The filter screen filter area who sets up at present in pipeline (outside pipeline or inside pipeline) is little, and the filter effect is poor to difficult the washing just can cause the filter screen to block up after using for a long time, impurity such as iron rust, suspended solid, colloidal substance in aquatic will directly flow from water purification unit, can cause very big harm to human health.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a filter assembly which is large in filter area, good in filter effect and easy to clean.

The invention also provides a raw water tank.

The invention also provides a water tank assembly.

The invention also provides a water purifying device.

A filter assembly according to an embodiment of the first aspect of the invention comprises:

a cylindrical screen configured to be mounted to a first end of a duct and to extend along a length of the duct;

filter screen cover, the cover is located the tube-shape filter screen is outside, and filter screen cover's edge with form the inlet between the pipeline, the second end of pipeline forms the liquid outlet, the liquid level of liquid outlet is less than the liquid level of inlet, with the inlet with form the process between the liquid outlet the siphon passageway of tube-shape filter screen.

According to the filter assembly provided by the embodiment of the invention, after the filter assembly is arranged in the pipeline, a siphon channel is formed among the filter screen cover, the cylindrical filter screen and the pipeline, so that liquid flows from the liquid inlet to the cylindrical filter screen under the siphon action and is discharged from the liquid outlet, and the liquid is fully contacted with different positions of the cylindrical filter screen under the siphon action in the flowing process of the liquid, thereby ensuring the filtering effect of the cylindrical filter screen. The filter assembly, because it includes a cylindrical filter screen extending along the length of the pipe, obviously has a larger area and a better filtering effect than the traditional filter screen arranged in the pipe. And because the cylindrical filter screen is arranged at the end part of the pipeline, the cylindrical filter screen can be cleaned only by removing the filter screen cover, so that the cylindrical filter screen is convenient to clean, and the blockage of the cylindrical filter screen can be avoided.

According to an embodiment of the present invention, further comprising:

the support is used for fixing the cylindrical filter screen and comprises a top plate, a bottom opening frame and a supporting beam, two ends of the supporting beam are respectively connected with the top plate and the bottom opening frame, and two ends of the cylindrical filter screen are respectively fixed on the top plate and the bottom opening frame;

the bottom port frame is connected with a first end of the pipeline.

According to one embodiment of the invention, the outer surface of the bottom port frame is provided with an annular mounting groove, a first sealing ring is fixed in the annular mounting groove, and the first sealing ring is in interference fit with the inner surface of the first end of the pipeline.

According to one embodiment of the invention, the top of the inner surface of the screen cover extends towards the cylindrical screen to form a limiting part, and the limiting part is arranged along the periphery of the cylindrical screen.

According to one embodiment of the invention, hollow wool is fixed to the cylindrical screen.

According to the raw water tank of the embodiment of the second aspect of the invention, the raw water tank comprises a tank body with a water discharge opening, the filter assembly and the pipeline are further included, the pipeline is installed at the water discharge opening, and the filter assembly and the first end of the pipeline are both located inside the tank body.

The raw water tank according to the embodiment of the invention comprises the filtering component, so that all technical effects of the filtering component are achieved, and the details are not repeated herein.

According to one embodiment of the invention, the cylindrical screen is removably connected to the duct.

According to one embodiment of the invention, the outer side wall of the pipeline comprises clamping rib positions, the clamping rib positions are clamped with the filter screen cover, and a gap is formed between every two adjacent clamping rib positions.

According to one embodiment of the invention, an annular groove matched with the edge of the filter screen cover is formed on the raw water tank bottom plate at the periphery of the pipeline, and a gap is formed between the edge of the filter screen cover and the inner surface of the annular groove.

According to one embodiment of the invention, a first stop is provided in the conduit;

the raw water tank also comprises a valve component for opening and closing the water outlet; the valve assembly includes:

a plug located inside the first stopper;

the first end of the mandrel is connected with the plug in a pluggable manner, the second end of the mandrel is provided with a second stopping portion, and the second stopping portion is positioned at the outer side of the first stopping portion;

the elastic piece is positioned between the first stopping part and the second stopping part and is abutted against the second stopping part, and the plug is attached to the first stopping part.

According to the water tank assembly of the third aspect of the invention, the water tank assembly comprises the raw water tank and the concentrated water tank arranged in the raw water tank, and the bottom plate of the concentrated water tank abuts against the top of the filter screen cover.

The water tank assembly according to the embodiment of the present invention includes the raw water tank, so that all technical effects of the raw water tank are achieved, and the details are not described herein.

According to an embodiment of the present invention, a water inlet port of the concentrated water tank is formed on the tank body, and a water inlet pipe is formed on the concentrated water tank and is communicated with the water inlet port.

According to a fourth aspect embodiment of the invention, a water purification apparatus comprises the above water tank assembly.

According to the embodiment of the invention, the water purifying device comprises the water tank assembly, so that all technical effects of the water tank assembly are achieved, and the details are not repeated herein.

According to one embodiment of the invention, the water purification apparatus is a water purifier, a drinking fountain or a water purifier.

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

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded view of a water tank assembly in an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a water tank assembly in an embodiment of the present invention;

FIG. 3 is a schematic view of the assembly of a tubular screen and a bracket according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a filter cover with perspective effect according to an embodiment of the present invention;

FIG. 5 is an enlarged partial schematic view at I of FIG. 2;

FIG. 6 is a schematic diagram of a concentrate tank in an embodiment of the invention;

FIG. 7 is a schematic structural diagram of a raw water tank in an embodiment of the present invention;

FIG. 8 is a schematic view of the construction of a water tank assembly in an embodiment of the present invention;

reference numerals:

101: a top cover; 102: a concentrated water tank; 103: a filter assembly; 1031: a filter screen cover; 1032: a cylindrical filter screen; 1033: a support; 1034: a first seal ring; 104: a valve assembly; 1041: a plug; 1042: a mandrel; 1043: an elastic member; 105: a raw water tank; 106: a float; 107: a float plug; 108: a second seal ring;

201: a water inlet pipe; 202: a water inlet interface;

301: a top plate; 302: a bottom opening frame; 303: a support beam;

401: a first section; 402: a second section; 403: limiting ribs;

501: a limiting step surface; 502: a siphon channel;

601: avoiding concave positions;

701: a float groove; 702: a pipeline; 703: a water outlet;

801: and (5) a concave structure.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

It should be noted that the embodiment of the present invention is only described by taking the filtration of water as an example, and it is obvious that the application of the filter assembly is not limited to the filtration of water, and can also be used for the filtration of other liquids.

Referring to fig. 1 to 5, according to an embodiment of the present invention, there is provided a filter assembly 103 including a cylindrical filter net 1032 and a filter net cover 1031. Wherein the tubular screen 1032 is configured to be mounted to a first end of the duct 702 (see fig. 7) and extends along a length of the duct 702; the filter screen cover 1031 is sleeved outside the cylindrical filter screen 1032, a liquid inlet is formed between the edge of the filter screen cover 1031 and the pipeline 702, a liquid outlet is formed at the second end of the pipeline 702, and the liquid level of the liquid outlet is lower than that of the liquid inlet so as to form a siphon channel 502 passing through the cylindrical filter screen 1032 between the liquid inlet and the liquid outlet.

After installing this filter assembly in pipeline 702, can form siphon passageway 502 between filter screen lid 1031, tube-shape filter screen 1032 and pipeline 702, and then liquid flows to tube-shape filter screen 1032 from the inlet under the siphon effect to discharge from the liquid outlet, liquid circulation in-process under the siphon effect with tube-shape filter screen 1032 different positions fully contact, and then guarantee tube-shape filter screen 1032's filter effect. The filter assembly 103, because it includes a cylindrical screen 1032 extending along the length of the duct 702, is obviously more effective in filtering than the conventional screen disposed in the duct 702, which is provided with a larger area of the cylindrical screen 1032. In addition, since the tubular strainer 1032 is provided at an end of the duct 702, the tubular strainer 1032 can be cleaned only by removing the strainer cover 1031, so that the cleaning is convenient and the clogging of the tubular strainer 1032 can be avoided.

It is worth mentioning that the filter screen cover 1031 sleeved outside the cylindrical filter screen 1032 also has a certain blocking effect on the impurities with larger volume.

When being used for filtering the drinking water that water purification unit provided with this kind of filter assembly 103, can prevent that impurities such as iron rust, suspended solid, colloidal substance in former aquatic from directly flowing from water purification unit, avoid causing harm to the health.

It should be noted that the filter assembly 103 can be used in other places besides filtering the drinking water provided by the water purifying device. For example, such filter assemblies 103 may also be used to filter irrigation water, or such filter assemblies 103 may also be used to filter industrial water, and the like.

Referring to fig. 5, the siphon channel 502 is indicated by a curve, wherein the starting point of the curve corresponds to the liquid inlet of the suction channel 502, the end point of the curve corresponds to the liquid outlet of the siphon channel 502, and the direction of the arrow on the curve indicates the flowing direction of the liquid in the siphon channel 502. It should be noted that in the position shown in the sectional view of fig. 5, the screen cover 1031 is snapped into the pipe 702, but a gap exists between the screen cover 1031 and the pipe 702 along the periphery of the pipe, and further, siphon passages 502 are formed between the screen cover 1031 and the pipe 702, between the screen cover 1031 and the cylindrical screen 1032, and inside the cylindrical screen 1032.

In fig. 5, it can be approximately considered that a U-shaped channel is formed between a curve located on the left side of the cylindrical screen 1032 and a curve located on the right side of the cylindrical screen 1032, and an end of the U-shaped channel having a high opening is a starting point of the left-side curve, and an end of the U-shaped channel having a low opening is an end point of the right-side curve. Of course, in fig. 5, since the cylindrical screen 1032 has many filtering holes, it can be seen that a U-shaped channel is formed at each filtering hole, and only one of the U-shaped channels is shown in the graph of fig. 5.

Wherein, in connection with fig. 2, the edge of the filter cover 1031 refers to the area of the filter cover 1031 near the bottom.

The tubular screen 1032 extends in the longitudinal direction of the duct 702, and the height direction of the tubular screen 1032 is the same as the longitudinal direction of the duct 702. When the cross-section of the conduit 702 is circular, the length direction of the conduit 702 is also the axial direction of the conduit 702; when the cross-section of the conduit 702 is square, the length of the conduit 702 is the central axis of the conduit 702. The cross-section of the conduit 702 may vary in shape and size for different locations.

The cylindrical screen 1032 may have an integral structure, or a plurality of screens may be connected by another member. For example, in fig. 3, a single screen may be rolled into a cylinder to obtain a cylinder screen 1032 in the present application; also can adopt the multi-disc filter screen, supplementary with the connecting piece, obtain tube-shape filter screen 1032 among this application.

In addition, the cross section of the cylindrical screen 1032 may be circular, square, triangular, irregular, etc.

Referring further to fig. 1, the filter assembly 103 further includes a bracket 1033, and the bracket 1033 is used for fixing the cylindrical screen 1032.

According to one embodiment of the present invention, the support 1033 includes a top plate 301, a bottom opening frame 302, and a support beam 303, wherein both ends of the support beam 303 are respectively connected to the top plate 301 and the bottom opening frame 302, and both ends of the cylindrical screen 1032 along its height direction are respectively fixed to the top plate 301 and the bottom opening frame 302.

Therein, a tubular screen 1032 may be connected to a first end of the duct 702 via the bottom port frame 302.

By providing such a holder 1033, the structural strength of the cylindrical screen 1032 can be ensured, and the cylindrical screen 1032 is prevented from being deformed after a certain period of use.

It is found from fig. 3 that the number of the support beams 303 is multiple, and the support beams are uniformly arranged along the peripheral direction of the tubular filter net 1032, and further, the uniformity of the stress performance of the tubular filter net 1032 can be ensured by the arrangement of the plurality of support beams 303.

The top plate 301 and bottom port frame 302 have a shape corresponding to the cross-sectional shape of the cylindrical screen 1032.

The cylindrical filter screen 1032 and the bracket 1033 can be prepared by an in-mold injection molding process, so that the cylindrical filter screen 1032 is reliably connected with the top plate 301 and the bottom opening frame 302, and water can only flow through the cylindrical filter screen 1032.

In fig. 3, an annular mounting groove is provided on the outer surface of the bottom port frame 302, and a first seal ring 1034 is fixed to the annular mounting groove. Further, the bottom port frame 302 extends at least partially into the conduit 702 and the first seal 1034 engages the inner surface of the first end of the conduit 702 with an interference fit, thereby securing the first seal 1034 to the first end of the conduit 702.

Of course, the bottom port frame 302 and the pipe 702 may be connected by other means than the fixed connection via the first sealing ring 1034. For example, the bottom port frame 302 and the first end of the conduit 702 are connected by a clamp; alternatively, the bottom port frame 302 and the first end of the pipe 702 are connected by a pipe joint; still alternatively, the bottom port frame 302 and the first end of the conduit 702 may be threadably coupled, and so forth. Even further, the bottom port frame 302 and the first end of the conduit 702 may be welded, bonded, etc.

According to the embodiment of the present invention, the top of the inner surface of the filter cover 1031 extends towards the cylindrical filter net 1032 to form a limiting part, and the limiting part is arranged along the periphery of the cylindrical filter net 1032. Through the setting of spacing portion, can prevent that tube-shape filter screen 1032 crooked in the course of the work, guarantee tube-shape filter screen 1032's installation stability.

The structure of the limiting part is not limited, and for example, the limiting part may be limiting ribs 403 formed inside the filter cover 1031 and distributed at intervals, an annular limiting boss formed in the filter cover 1031, a limiting groove formed in the filter cover 1031, or the like.

For example, in fig. 4, the screen cover 1031 includes a first section 401 and a second section 402 from top to bottom, wherein the first section 401 has a smaller cross-section than the second section 402, and a step is formed between the outer surfaces of the first section 401 and the second section 402. In this case, the cross-sectional area of the inner hole of the first section 401 is also smaller, and the cylindrical screen 1032 does not shake in the first section 401 after entering the first section 401 from the top.

In addition, in order to further precisely define the cylindrical screen 1032, in fig. 4, a limiting rib 403 may be formed inside the first section 401, and the limiting rib 403 may contact with the top plate 301 or the top of the cylindrical screen 1032, thereby preventing the cylindrical screen 1032 from shaking in the height direction thereof. In fig. 4, the limiting ribs 403 are arranged at intervals along the outer periphery of the cylindrical screen 1032, so that the filtering effect of the top of the cylindrical screen 1032 is not affected.

To achieve higher-precision filtration, hollow wool may be fixed to the cylindrical screen 1032. Wherein, the hollow cotton is also called PP cotton, also called male cotton or filling cotton. In order to ensure the structural strength of the tubular screen 1032, metal may be used as the material. In addition, the aperture of the cylindrical filter net 1032 can be selected according to the actual requirement so as to meet the requirements of different water quality areas.

According to an embodiment of the present invention, there is provided a raw water tank 105, which includes a tank body formed with a water outlet 703 (see fig. 7), the above-mentioned filter assembly 103, and a pipe 702. The above-mentioned duct 702 is installed at the drain port 703 of the tank, and the filter assembly 103 and the first end of the duct 702 are both located inside the tank.

The filtering component 103 is arranged on the pipeline 702 at the water outlet 703 of the raw water tank 105, so that foreign matters carried in water can be prevented from entering a water pump of the water purifying equipment, and the water pump is prevented from being damaged after long-time work.

Particularly, in the case of a water purification apparatus in which a water pump is installed before the core, if the filter assembly 103 is not installed at the drain port 703 of the raw water tank 105, impurities carried in the raw water directly enter the water pump, which results in early rejection of the water pump.

The cylindrical filter screen 1032 and the pipeline 702 can be detachably connected, and then the cylindrical filter screen 1032 can be periodically detached and cleaned, so that the cylindrical filter screen 1032 can be conveniently recycled. Of course, replacement of the tubular screen 1032 may be performed by detaching and attaching the screen.

According to the embodiment of the invention, the outer side wall of the pipeline 702 is detachably connected with the filter screen cover 1031, so that the filter assembly is convenient to disassemble and assemble, and the filter assembly is convenient to replace and clean.

For example, the outer side wall of the conduit 702 can snap into engagement with the filter cover 1031. Thus, the duct 702 and the screen cover 1031 are securely attached to each other, and the screen cover 1031 is prevented from being separated from the cylindrical screen 1032 by buoyancy. Of course, besides the connection by the snap-fit, the outer side wall of the pipe 702 may be detachably connected to the filter cover 1031, and it is only necessary to ensure that the liquid can enter the siphon channel 502 while ensuring the connection between the outer side wall of the pipe 702 and the filter cover 1031, so that a channel for the liquid to flow through must be provided between the pipe 702 and the filter cover 1031.

Further, the outer side wall of the pipe 702 is clamped to the clamping section of the second section 402 of the filter cover 1031, so that the liquid inlet area of the liquid inlet is not affected. The clamping rib positions are formed at the clamping sections, and the arrangement of the clamping rib positions ensures that the gap between the pipeline 702 and the filter screen cover 1031 is uniform, so that water can enter the siphon channel 502, and the water can more smoothly pass through the cylindrical filter screen 1032.

And it can be seen from fig. 5 that the screen cover 1031 and the pipe 702 are respectively formed with mutually matching limit step surfaces 501, and the clamping section is located between the limit step surfaces 501 and the edge of the screen cover 1031. The arrangement of the limiting step surface 501 and the clamping section ensures the limiting fit between the filter screen cover 1031 and the pipe 702.

Referring to fig. 2, an annular groove matching with the edge of the filter cover 1031 is formed on the bottom plate of the raw water tank 105 at the periphery of the duct 702, and a gap exists between the edge of the filter cover 1031 and the inner surface of the annular groove.

Here, the term "an annular groove matching with the edge of the filter cover 1031 is formed on the bottom plate of the raw water tank 105 at the periphery of the pipe 702" means that the shape and size of the filter cover 1031 are matched with the annular groove. For example, the edge of the filter cover 1031 is circular, and the annular groove is circular, and the edge of the filter cover 1031 can enter the annular groove; for another example, the edge of the filter cover 1031 is rectangular ring-shaped, and then the annular groove is also rectangular ring-shaped, and the edge of the filter cover 1031 can enter into the annular groove; for another example, the edge of the filter cover 1031 is in the shape of a hexagonal ring, and then the annular groove is also in the shape of a hexagonal ring, and the edge of the filter cover 1031 can enter into the annular groove. Of course, in order to ensure that the raw water can enter the siphon channel 502 through the annular groove, the edge of the filter cover 1031 may not enter the annular groove but be located above the annular groove.

Further, "there is a gap between the edge of the filter cover 1031 and the inner surface of the annular groove" means: gaps are reserved between the edge of the filter screen cover 1031 and the inner side wall of the annular groove and between the edge of the filter screen cover 1031 and the bottom plate of the annular groove, and then raw water enters the siphon channel 502 through the gaps during normal work.

It is worth mentioning that the water level of the annular groove is the lowest water level of the raw water tank 105, and the filter screen cover 1031 is installed in the annular groove, so that the liquid inlet formed between the edge of the filter screen cover 1031 and the pipe 702 corresponds to the lowest water level of the raw water tank 105, thereby ensuring that the raw water in the raw water tank 105 can completely enter the siphon channel 502 through the annular groove.

Referring to fig. 5, a first stop is disposed in the pipe 702; the raw water tank 105 further includes a valve assembly 104 for opening and closing the drain port 703. Specifically, valve assembly 104 includes plug 1041, spindle 1042, and resilient member 1043. The plug 1041 is located inside the first stopper; the first end of the mandrel 1042 is connected with the plug 1041 in a pluggable manner, the second end is formed with a second stopping portion, and the second stopping portion is located at the outer side of the first stopping portion; the elastic member 1043 is located between the first blocking portion and the second blocking portion, and the elastic member 1043 abuts against the second blocking portion, so that the plug 1041 adheres to the first blocking portion.

Both the "inside of the first stopper" and the "outside of the first stopper" are relative to the tank body of the raw water tank 105. In fig. 5, the upper side of the first stopping portion is closer to the inside of the box body, corresponding to the inner side of the first stopping portion; the lower side of the first stopping portion is closer to the outside of the box body and corresponds to the outer side of the first stopping portion.

When the raw water tank 105 is mounted on a corresponding water purifying device, the mandrel 1042 is jacked up, the elastic member 1043 is compressed at the moment, and the mandrel 1042 drives the plug 1041 to be separated from the end face of the first stopping portion, so that the communication between the raw water tank 105 and a water channel of the water purifying device is realized; when the water pump works, negative pressure is generated inside the cylindrical filter screen 1032 of the filter assembly, and then the siphon action of the siphon channel 502 is combined, so that water in the raw water tank 105 enters the cylindrical filter screen 1032 from the annular groove at the bottom of the tank body through the filter screen cover 1031, foreign matters and impurities are intercepted outside the cylindrical filter screen 1032, and the water enters the pipeline 702 through the inside of the cylindrical filter screen 1032 and finally enters the water pump.

The plug 1041 may be, but need not be, a silica gel plug with good sealing effect. The resilient member 1043 may, but need not, employ a readily available spring. A circular hole may be formed in the silicone plug, and the first end of the mandrel 1042 is inserted into the circular hole in the silicone plug after passing through the spring.

Wherein the end surface of the first stop is continuous along the inner surface of the conduit 702 due to the need to form a sealing engagement with the plug 1041. The second stopping portion is used for limiting the elastic member 1043, and the elastic member 1043 is located between the first stopping portion and the second stopping portion, so that there is no special requirement on the shape of the second stopping portion.

According to an embodiment of the present invention, a water tank assembly is provided, which comprises the raw water tank 105 and the concentrated water tank 102 installed in the raw water tank 105.

Wherein, the bottom plate of the concentrated water tank 102 can abut against the top of the strainer cover 1031, and then the strainer cover 1031 can be prevented from separating from the cylindrical strainer 1032 under the action of buoyancy.

Referring to fig. 1, 2 and 6, in order to ensure sufficient volume of the concentrate tank 102, the concentrate tank 102 is formed in a special shape. Specifically, the concentrated water tank 102 forms an avoiding concave position 601 corresponding to the filter assembly, and interference between the concentrated water tank 102 and the filter assembly 103 is prevented by the avoiding concave position 601.

Referring to fig. 7, a water inlet port 202 of the concentrated water tank 102 is formed on the body of the raw water tank 105, and the water inlet port 202 is communicated with a water inlet pipe 201 on the concentrated water tank 102. The connection between the water inlet pipe 201 and the water inlet interface 202 is shown in fig. 2. Wherein, in order to prevent water leakage between the water inlet pipe 201 and the water inlet interface 202, an annular mounting groove may be formed outside the bottom of the water inlet pipe 201, and the second sealing ring 108 is fixed in the annular mounting groove, so that the second sealing ring 108 is in interference fit with the inner surface of the water inlet interface 202. Of course, the connection between the water inlet pipe 201 and the water inlet interface 202 is not limited by the examples herein.

In addition, as can be seen from fig. 7, the raw water tank 105 further includes a float 106 for detecting a water level. Wherein the float 106 is located in a float groove 701 in the bottom of the tank and is defined inside the float groove 701 by a float plug 107 at the top of the float groove 701. Wherein the float plug 107 can abut against the bottom plate of the concentrate tank 102, thereby preventing the float plug 107 from being separated from the float groove 701.

As can be seen from fig. 1 and 2, the concentrate tank 102 is embedded in the raw water tank 105 and is detachably connected to the raw water tank 105. In this case, the cleaning of the concentrate tank and the raw water tank 105 is more convenient and sufficient. Specifically, in order to clean the raw water tank 105, the concentrated water tank 102 may be detached first. Similarly, to facilitate cleaning of the concentrate tank 102, the concentrate tank 102 may be removed from the raw water tank 105. The concentrated water tank 102 and the raw water tank 105 may be fixed by a snap or any other detachable manner.

Referring to fig. 8, the raw water tank 105 of the water tank assembly has the handholds formed on the two sides of the outer portion thereof, and the handholds are correspondingly distributed on the left and right sides of fig. 2. Wherein, the holding part can be a concave structure 801 formed on the raw water tank 105.

And, with reference to fig. 1, 2 and 8, the water tank assembly further includes a top cover 101, wherein the top cover 101 is detachably mounted at an opening of the raw water tank 105, so as to facilitate the injection of water into the raw water tank 105 and the discharge of concentrated water in the concentrated water tank 102.

According to an embodiment of the invention, a water purification device is provided, which comprises the water tank assembly.

In addition, the water purifying equipment also comprises a water pump, a filter element and other components.

Wherein, when the water pump setting before the filter core, through setting up filter assembly 103 for the raw water filters through above-mentioned filter assembly 103 earlier before getting into the water pump, can avoid in the raw water carried the foreign matter get into the water pump in, prevents that the water pump from becoming invalid, guarantees water purification unit's life.

Wherein the water purifying device is a water purifying dispenser, a water purifier, a water dispenser or a water purifier and the like.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. A filter assembly, comprising:

2. The filter assembly of claim 1, further comprising:

the bottom port frame is connected with a first end of the pipeline.

3. The filter assembly of claim 2, wherein the bottom port frame has an annular mounting groove formed in an outer surface thereof, and a first sealing ring is secured in the annular mounting groove and in interference fit with an inner surface of the first end of the pipe.

4. The filter assembly of claim 1, wherein a top portion of the inner surface of the screen cover extends toward the cylindrical screen to form a restriction, the restriction being disposed along a periphery of the cylindrical screen.

5. A filter assembly as claimed in any one of claims 1 to 4, wherein hollow wool is secured to the cylindrical screen.

6. A raw water tank comprising a tank body formed with a drain opening, characterized by further comprising a filter assembly according to any one of claims 1 to 5 and a pipe, the pipe being mounted at the drain opening, and the filter assembly and a first end of the pipe being located inside the tank body.

7. The raw water tank of claim 6 wherein the cylindrical screen is removably attached to the pipe.

8. The raw water tank of claim 6, wherein the outer side wall of the pipeline comprises clamping rib positions, the clamping rib positions are clamped with the filter screen cover, and a gap is formed between the adjacent clamping rib positions.

9. The raw water tank of claim 8 wherein an annular groove is formed in the raw water tank bottom plate at the periphery of the pipe to match the edge of the screen cover, and a gap exists between the edge of the screen cover and the inner surface of the annular groove.

10. The raw water tank according to any one of claims 6 to 9 wherein a first stopper and a valve assembly for opening and closing the drain opening are provided in the pipe; the valve assembly includes:

a plug located inside the first stopper;

11. A cistern assembly comprising a raw cistern as claimed in any one of claims 6 to 10, and a concentrate cistern mounted within the raw cistern, the concentrate cistern floor abutting the top of the screen cover.

12. The water tank assembly as recited in claim 11, wherein said tank body defines a water inlet port of said concentrate water tank, said concentrate water tank defines a water inlet tube, said water inlet tube communicating with said water inlet port.

13. A water purification apparatus comprising a water tank assembly as claimed in claim 11 or 12.

14. The water purification apparatus of claim 13, wherein the water purification apparatus is a water purifier, a drinking fountain, or a water purifier.