CN216320315U - Filter of tap water purifier and tap water purifier - Google Patents

Abstract

The utility model belongs to the technical field of water treatment, and particularly discloses a filter of a faucet water purifier and the faucet water purifier. The filter includes that filter core and cover establish at the outside casing of filter core, still including being located filter screen in the casing, the filter screen will raw water side space and primary filter side space are cut apart into to the inner chamber of casing, raw water side space with the raw water import intercommunication of filter, the filter core is located in the primary filter side space, the filter screen with the casing is connected. The faucet water purifier comprises the filter. The filter and the faucet water purifier disclosed by the utility model can improve the water filtering effect, reduce the times of filter element replacement and reduce the filter element maintenance cost.

Description

Filter of tap water purifier and tap water purifier

Technical Field

The utility model relates to the technical field of water treatment, in particular to a filter of a faucet water purifier and the faucet water purifier.

Background

The tap water in the household is generally from a tap water plant, residual chlorine or other pollution impurities may still remain in the tap water after the tap water is subjected to chlorination and disinfection and the like in the tap water plant, and the tap water is likely to generate secondary pollution in the conveying process.

The tap water purifier is a miniature water purifier directly mounted on a household tap, a filter element is arranged in the tap water purifier, and tap water can flow out for use after being filtered by the filter element, so that the water outlet quality of tap water is improved.

However, since there may be impurities with large particles in tap water, after the tap water purifier is used for a long time, the impurities easily block the filter element, which affects the flow rate and the flow velocity of the outlet water, so that the filter element needs to be replaced at regular time, which affects the service life of the tap water purifier and increases the replacement cost of the tap water purifier.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to provide a filter for faucet water purifier, so as to reduce the probability of filter element plug, prolong the service life of the filter element, and reduce the maintenance and replacement cost of the filter.

Another object of the present invention is to provide a faucet water purifier, so as to prolong the service life of the faucet water purifier and reduce the maintenance and replacement costs of the faucet water purifier.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a filter of tap water purifier, the filter includes that filter core and cover establish at the outside casing of filter core, still including being located filter screen in the casing, the filter screen will raw water side space and primary filter side space are split into to the inner chamber of casing, raw water side space with the raw water import intercommunication of filter, the filter core is located in the primary filter side space, the filter screen with the casing is connected.

As an optional technical scheme of filter, the casing include the base and the lock connect in shell on the base, the filter core install in on the base and be located inside the shell, the filter screen encloses to be located the outside of filter core and with the base or the shell is connected, the shell inner wall with form between the filter screen former water side space, the filter screen inner wall encloses to form primary filter side space. The filter screen is simple in structure, easy to process and produce and easy to realize full wrapping or circumferential covering of the filter element.

As an optional technical solution of the filter, the filter screen includes a filter cylinder portion, the filter cylinder portion surrounds the filter element and at least has an opening facing the base, and at least one end of the filter cylinder portion is detachably connected with the housing or integrally formed with the housing; this kind of filter screen simple structure, easily processing, simultaneously, through the cocoa dismantlement of filtering barrel portion and shell be connected or integrated into one piece, also can improve the dismouting convenience of filter screen.

Or, the filter screen includes one end opening and the confined filter tube portion of one end, the open end of filtering the tube portion towards the base and with the base can be dismantled and be connected. The filter screen is simple in structure and easy to process, and meanwhile, the filter screen is detachably connected with the base, so that the filter screen is simpler to install, and the structure of the shell does not need to be greatly changed.

As an optional technical solution of the filter, one end of the filtering cylinder part facing the base extends outwards to form a connecting plate part, the connecting plate part is connected with the inner wall or the opening end surface of the shell, and the connecting plate part is provided with a water through hole. This kind of setting, the setting of connecting plate portion can be favorable to processing the structure of being connected with the shell on the connecting plate portion, avoids the problem that network structure is unfavorable for connecting to produce, can improve the convenience of being connected of filter screen and shell.

As an optional technical scheme of a filter, the base has the opening and faces the mounting groove of shell, the protruding location ring portion that is equipped with of tank bottom of mounting groove, the filter core install in location ring portion, the lower extreme of filter screen extends to location ring portion department. This kind of setting can increase the application range of filter screen, and the probability that increase water reentrant filter core through the first filtration of filter screen further improves the first filter effect of filter screen.

As an optional technical scheme of the filter, the filter screen is attached to the outer wall surface of the positioning ring part; or, the end face of the positioning ring part is provided with an annular groove surrounding the filter element, and the lower end of the filter screen is inserted into the annular groove. This kind of setting can realize better that the filter screen is to the full parcel of filter core, improves first filter effect.

As an alternative to the filter, the filter is provided with a back-flushing mode, and the filter is configured to: in the back washing mode, water entering the interior of the casing flows out of the casing after sequentially passing through the inner cavity of the filter element, the primary filtering side space and the raw water side space. Through setting up the back flush mode, can be so that after the filter uses a period, can wash the clearance through the back flush to filter core and filter screen, reduce the number of times that filter core and filter screen need dismouting clearance, prolong the life of filter core.

As an alternative solution of the filter, the filter further includes a cleaning assembly located in the primary filtering side space for cleaning the surfaces of the filter screen and the filter element. The arrangement can realize self-cleaning of the filter and improve the cleaning convenience of the filter; simultaneously, the setting of clean subassembly can simplify the jam of filter screen and filter core to improve the use reliability of filter core and filter screen, reduce the change frequency of filter screen and filter core, thereby prolong the live time of filter.

As an optional technical scheme of the filter, one end of the shell, which is far away from the base, is opened and is connected with a sealing cover in a sealing and buckling manner, and two ends of the filter screen are opened;

the cleaning assembly comprises a brush strip, one end of the base is far away from the brush strip and is connected with the sealing cover, the brush strip extends into the space on the primary filtering side and simultaneously with the filter element and the filter screen, the sealing cover can be opposite to the shell rotates to drive the brush strip to move along the circumferential direction of the filter element. This kind of setting of clean subassembly, simple structure, and it is little to take up an area of the space, clean easy operation, it is lower to succeed, and can improve the clean effect to filter screen and filter core.

A faucet water purifier comprising a filter as described above.

The utility model has the beneficial effects that:

according to the filter provided by the utility model, the space between the shell and the filter element is divided into the raw water side space and the primary filter side space by arranging the filter screen, so that at least part of water entering the shell can firstly pass through the raw water side space and then enter the filter element through the primary filter side space after being filtered by the filter screen, and thus, the filter screen can at least primarily filter part of water entering the filter element, large-particle impurities are prevented from blocking water seepage holes in the filter element, the probability of blocking the filter element is effectively reduced, the service life of the filter element is prolonged, and the replacement frequency of the filter element is reduced.

According to the faucet water purifier provided by the utility model, the filter is adopted, so that the cork probability of the filter in the faucet water purifier can be reduced, the service lives of the filter element and the faucet water purifier are prolonged, and the maintenance and replacement cost of the faucet water purifier is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a faucet water purifier provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a filter provided in accordance with an embodiment of the present invention from a first perspective;

fig. 3 is a schematic partial structural diagram of a housing according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a filter provided in accordance with a second embodiment of the present invention;

FIG. 5 is a cross-sectional view of a filter provided in accordance with a third embodiment of the present invention, taken from a second perspective;

fig. 6 is a cross-sectional view of a filter provided in accordance with a third embodiment of the present invention, taken from a third viewing angle;

fig. 7 is a sectional view of a filter according to a fourth embodiment of the present invention.

The figures are labeled as follows:

1. a filter; 11. a housing; 111. a base; 1111. a positioning ring portion; 1112. the lug boss is communicated; 1113. a raw water inlet tank; 1114. a purified water outlet tank; 1115. a filtration water inlet channel; 1116. a backflushing water inlet channel; 1117. a water outlet channel; 112. a housing; 113. an end cap; 1131. a purified water outlet; 114. sealing the cover; 12. a filter element; 121. a filter chamber; 13. a filter screen; 131. a filter cylinder part; 132. a connecting plate portion; 1321. a water through hole; 14. a raw water cavity; 141. a raw water side space; 142. a primary filtration side space; 15. a cleaning assembly; 151. installing a shaft; 152. a brush; 16. a water outlet accommodating cavity; 2. a mounting seat; 3. and adjusting the handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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 under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

The embodiment provides a faucet water purifier, which can be mounted at the water outlet end of a faucet, so that the outlet water of the faucet can enter the faucet water purifier to be filtered, and the outlet water quality is improved. The water purifier provided by the embodiment can be a single faucet water purifier, namely, after the faucet water purifier is mounted at the water outlet end of a faucet, water can only flow out from the purified water outlet of the faucet water purifier; the water purifier provided by the embodiment can also be a water purifier capable of switching between tap water and purified water, namely, the water outlet of the tap can selectively flow out directly without being filtered by the tap water purifier or the water outlet of the tap can flow out after being filtered by the tap water purifier.

As shown in fig. 1, the faucet water purifier includes a filter 1 and a mounting seat 2, the mounting seat 2 is used for mounting the faucet water purifier on a faucet and introducing faucet outlet water into the filter 1, and the filter 1 is used for filtering water flowing into the interior of the filter 1 to ensure pure water.

Specifically, have the installation cavity in mount pad 2, mount pad 2 has along its axial first end and second end, and the first end opening of installation cavity is connected with tap's delivery port, and mount pad 2 is preferably threaded connection with tap's connected mode, and the first end opening of mount pad 2 forms former water inlet. The second end of mount pad 2 is provided with a seat delivery port, and the lateral wall of mount pad 2 has shell connecting portion along radially extending, is provided with the intercommunication mouth of intercommunication installation cavity on the shell connecting portion. Be provided with the governing valve in the mount pad 2, rotate on the opposite lateral wall of mount pad 2 and be connected with adjustment handle 3, adjustment handle 3 is connected with the governing valve to the operation governing valve makes raw water import selectively with intercommunication mouth or seat delivery port intercommunication.

As shown in fig. 2, the filter 1 includes a cabinet 11 and a filter cartridge 12 disposed inside the cabinet 11, the filter cartridge 12 being used to filter water. A raw water cavity 14 is formed between the filter element 12 and the casing 11, and the raw water cavity 14 can be communicated with the communication port, so that water flowing in from the raw water inlet can enter the raw water cavity 14 through the communication port. The casing 11 is provided with a purified water outlet 1131, water in the raw water chamber 14 is filtered by the filtering structure in the filter element 12 after permeating into the filter element 12 through the outer wall of the filter element 12, and the purified water formed after filtering flows out from the purified water outlet 1131.

In this embodiment, when the raw water inlet is communicated with the water outlet of the seat, the effluent of the faucet directly flows out through the water outlet of the seat without being filtered, that is, the effluent is raw water without being filtered; when the raw water inlet is communicated with the communication port, the tap water can enter the filter 1 through the communication port, so that the water can flow out from the purified water outlet 1131 after being filtered by the filter element 12, that is, the tap water purifier provides clean water for users.

The tap water purifier that this embodiment provided both can realize raw water and go out water promptly, also can realize that the water purification goes out water, satisfies diversified water demand. However, it is understood that in other embodiments, the faucet water purifier may only have a function of purifying water.

The structures of the mounting seat 2, the regulating valve, the regulating handle 3 and the like can be arranged by referring to the existing faucet water purifier, which is not the key point of the utility model and is not described again.

The housing 11 preferably includes a base 111 and a casing 112, the casing 112 is fastened on the base 111 and forms the raw water chamber 14 with the base 111. The outer wall of the base 111 is convexly provided with a communicating boss 1112, the communicating boss 1112 is connected with the mounting seat 2, and the communicating boss 1112 is provided with a filtering water inlet channel 1115 for communicating the raw water cavity 14 with the communicating port. The connection mode of the connection boss 1112 and the mounting base 2 and the opening mode of the filtering water inlet channel 1115 can refer to the prior art, which is not limited in this embodiment.

The base 111 includes a base portion having a mounting groove opened toward the housing 112, and the base portion is detachably coupled with the housing 112. The base 111 further comprises a positioning ring portion 1111 protruding at the bottom of the mounting groove, the positioning ring portion 1111 is of an annular structure, and the positioning ring portion 1111 divides the space of the mounting groove into a raw water inlet groove 1113 located outside the positioning ring portion 1111 and a water inlet and outlet groove 1114 located outside the positioning ring portion 1111. The clean water end of the filter element 12 is hermetically mounted on the positioning ring 1111, and the filter chamber 121 of the filter element 12 is communicated with the water inlet and outlet groove 114. The bottom of the base 111 is provided with a purified water outlet 1131, and the purified water outlet 1131 can be communicated with the water inlet and outlet groove 1114.

In this embodiment, the filter element 12 is provided with at least two layers of filtering structures from outside to inside, a water seepage hole for water seepage is formed in the outer wall of the filter element 12, the innermost side of the filter element 12 forms a filter cavity 121, and the lower end of the filter cavity 121 is open and communicated with the purified water outlet channel 1114. When water is required to be purified and discharged, the tap water flows into the raw water cavity 14 from the communication port, the water in the raw water cavity 14 enters the filter cavity 121 after being sequentially filtered step by step through each layer of filter structure under the action of water pressure, and flows out of the purified water outlet 1131 from the filter cavity 121 through the purified water discharging groove 1114. The multilayer filtering structure can be a ceramic filtering shell, a KDF filtering core layer, an activated carbon layer and a PP cotton layer which are sequentially arranged from outside to inside, or other existing filtering core 12 structures are adopted, and the embodiment does not limit the structure.

It is understood that, in other embodiments, the filter element 12 may also include a filter casing and a multi-layer filtering structure sequentially disposed in the filter casing from top to bottom, in this case, a water inlet cavity and a filtering cavity 121 are respectively formed in the upper and lower sides of the multi-layer filtering structure in the filter casing, and a water seepage hole communicating the water inlet cavity and the raw water cavity 14 is formed in the upper portion of the filter casing. The construction of the filter cartridge 12, the composition of the filter material in the filter cartridge 12, and the installation of the filter cartridge 12 on the positioning ring 1111 are all as described in the prior art, and the present embodiment is not limited thereto.

In this embodiment, the filter 1 further includes a filter screen 13 disposed in the cabinet 11 and dividing the inner cavity of the cabinet 11 into a raw water side space 141 and a primary filter side space 142, the raw water side space 141 is communicated with the filter inlet 1115, the filter element 12 is disposed in the primary filter side space 142, and the filter screen 13 is connected to the cabinet 11.

Filter screen 13's setting, make the space between casing 11 and the filter core 12 separated into raw water side space 141 and elementary filtration side space 142, thereby from filtering the water inlet channel 1115 and get into the inside water of casing 11 at least partly can pass through raw water side space 141 earlier, filter through filter screen 13 again and just enter into filter core 12 through elementary filtration side space 142 in, thereby can make filter screen 13 carry out the prefilter to the water that the part got into filter core 12 at least, avoid the infiltration hole on the impurity jam filter core 12 of large granule, effectively reduce the probability that filter core 12 blockked up, extension filter core 12 life, thereby reduce filter core 12 replacement frequency.

As shown in fig. 2 and 3, in the embodiment, the filter screen 13 includes a cylindrical filter cylinder 131, the filter cylinder 131 is a cylindrical structure with an opening facing the base 111, the filter cylinder 131 is disposed around the outside of the filter element 12, a raw water side space 141 is formed between the inner wall of the housing 112 and the filter screen 13, and a primary filter side space 142 is formed around the inner wall of the filter screen 13. This kind of filter screen 13's simple structure, easily processing production, and easily realize wrapping up or circumference cover to filter core 12 entirely.

In this embodiment, the filter 13 is detachably connected to the housing 112 or integrally formed therewith, so that the filter 13 can be easily disassembled and replaced. Further, in order to facilitate the connection between the filter screen 13 and the housing 112, in the present embodiment, the filter cylinder portion 131 extends outward toward the opening end of the base 111 to form a connecting plate portion 132, the connecting plate portion 132 is connected to the inner wall or the opening end surface of the housing 112, and the connecting plate portion 132 is provided with a water passage hole 1321.

In this embodiment, the connection plate 132 and the housing 112 are connected by a screw, the connection plate 132 may have a plate-shaped structure with a certain thickness, an outer edge of the connection plate 132 is provided with an external screw, an inner wall of the opening end of the housing 112 is provided with an internal screw, and the connection plate 132 and the housing 112 are connected by a screw.

In other embodiments, the filter 13 may be plugged into the housing 112. Specifically, an annular groove is formed in the inner side wall of the open end of the housing 112, and the end of the connecting plate portion 132 is inserted into the annular groove.

In yet other embodiments, the filter mesh 13 may be welded to the housing 112. For example, the two ends of the filter cylinder 131 are open, and the end of the filter cylinder 131 far from the base 111 is welded to the inner bottom of the housing 112. Or the outer periphery of the connecting plate portion 132 may be welded to the inner wall or end surface of the housing 112.

In order to filter the water in the raw water chamber 14 through the filter screen 13 and then enter the filter element 12, it is preferable that the filter screen 13 extends to the positioning ring 1111 toward the end of the base 111. And more preferably, in this embodiment, the lower end of the filter screen 13 is attached to the outer wall of the positioning ring portion 111, so that water flowing from the raw water inlet groove 1113 to the outer shell 112 can only enter between the outer shell 112 and the filter screen 13 from the open end of the outer shell 112, and can enter the filter element 12 after passing through the filter screen 13, thereby further improving the primary filtering effect of the filter screen 13 on water, and ensuring that substantially all water in the raw water chamber 14 can enter the filter screen 13 for primary filtering and then enter the filter element 12.

The filter screen 13 is preferably made of stainless steel material, so that the cost is low and the filter screen is not easy to rust. In other embodiments, the filter screen 13 may be made of other materials that are not easily rusted or corroded.

In this embodiment, the aperture of the filtering holes on the filtering net 13 is preferably 1 μm to 5 μm, so as to ensure the filtering effect on the impurities. Further, the water passage holes 1321 of the connecting plate portion 132 have a hole diameter larger than 10 μm to ensure that the water in the raw water inlet tank 1113 can smoothly enter the raw water side space 141. The water passage holes 1321 are preferably provided in plurality at regular intervals in the circumferential direction of the filter mesh 13.

Example two

As shown in fig. 4, the faucet water purifier provided in this embodiment is basically the same as the faucet water purifier provided in this embodiment, and only a part of the arrangement of the filter screen 13 is different, and the structure that is the same as that of the faucet water purifier provided in this embodiment is not described again in this embodiment.

In the present embodiment, the filter 13 covers the outside of the filter element 12 and is detachably connected to the base 111. Specifically, filter screen 13 is the network structure that one end is open and one end is closed, and the open end of filter screen 13 is towards base 111, and the open end can be dismantled with location ring portion 1111 and be connected, can realize the full parcel to filter core 12 from this better. Meanwhile, the filter screen 13 and the shell 112 are sequentially covered outside the filter element 12, so that the structure of the filter screen 13 is independent of the shell 112, and the processing difficulty of the shell 112 is reduced.

In order to improve the convenience of assembling and disassembling the filter screen 13, an annular groove is formed in the end surface of the positioning ring portion 1111, the annular groove is disposed around the filter element 12, and one end of the filter screen 13 facing the base 111 is inserted into the annular groove. This arrangement allows the filter screen 13 to be mounted on the base 111 without the need for additional auxiliary structure.

In other embodiments, the lower end of the filter screen 13 may be surrounded by the positioning ring portion 1111, and the filter screen 13 is connected to the outer wall of the positioning ring portion 1111 by clipping or adhesive.

EXAMPLE III

The embodiment provides a faucet water purifier, and the faucet water purifier provided by the embodiment is a further improvement based on the faucet water purifier in the first embodiment. The structure similar to that of the first embodiment will not be described again in this embodiment.

In the present embodiment, the faucet water purifier is provided with a backwashing mode, and the filter 1 is configured to: in the back-flushing mode, the water entering the interior of the housing 11 flows out of the housing 11 after passing through the inner cavity of the filter element 12, the primary filter side space 142, and the raw water side space 141 in sequence. Through setting up the back flush mode, can be so that after leading water purifier uses a period, can wash the clearance through the back flush to filter core 12 and filter screen 13, reduce filter core 12 and filter screen 13 and need the number of times of dismouting clearance, prolong the life of filter core 12.

As shown in fig. 2, 5 and 6, in the present embodiment, the communication boss 1112 is provided with a separate filtration water inlet channel 1115, a back flush water inlet channel 1116 and a water outlet channel 1117. One end of the filtering water inlet channel 1115 is communicated with the end face of the boss 1112, and the other end is communicated with the raw water inlet groove 1113; one end of the backflushing water inlet channel 1116 penetrates through the end face of the communicating boss 1112, and the other end extends to the inner side of the positioning ring portion 1111 and is communicated with the water inlet and outlet groove 1114; one end of the water outlet channel 1117 is communicated with the end surface of the communicating boss 1112, and the other end is communicated with the purified water outlet 1131.

The communicating port comprises a first communicating port, a second communicating port and a third communicating port, the three communicating ports are outlets of the adjusting valve, and the faucet water purifier can have a water purifying mode and a backwashing mode by rotating the adjusting handle 3.

When the faucet water purifier is in a water purification mode, the raw water inlet is communicated with the first communication port, the first communication port is communicated with the filtering water inlet channel 1115, the backflushing water inlet channel 1116 is communicated with the water outlet channel 1117 at the end face of the communication boss 1112, and at the moment, water flows sequentially pass through the first communication port, the filtering water inlet channel 1115, the raw water inlet groove 1113, the raw water side space 141, the primary filtering side space 142, the filter element 12, the purified water outlet groove 1114, the backflushing water inlet channel 1116 and the water outlet channel 1117 from the raw water inlet under the action of water pressure and then flow out through the purified water outlet 1131.

When the faucet water purifier is in a backwashing mode, the raw water inlet is communicated with the second communication port, the second communication port is communicated with the backwashing water inlet channel 1116, and the filtering water inlet channel 1115 and the water outlet channel 1117 are communicated at the end face of the communication boss 1112. The outlet water of the faucet water passes through the second communication port, the backflushing water inlet channel 1116, the purified water outlet groove 1114, the filter chamber 121, the filter element 12, the primary filter side space 142, the raw water side space 141, the backflushing water inlet channel 1116 and the water outlet channel 1117 in sequence under the action of water pressure and then flows out through the purified water outlet 1131.

That is, when the faucet water purifier is in the water purification mode, raw water is filtered by the filter screen 13 and the filter element 12 and then flows out from the purified water outlet 1131, thereby realizing filtration and purification of water. When the faucet water purifier is in the backwashing mode, faucet effluent enters the filter element 12 to backwash the filter element 12, and simultaneously, water flowing out of the filter element 12 backwashes the filter screen 13, and the flushed water flows out of the filter 1 through the purified water outlet 1131.

In this embodiment, the governing valve is the valve block group, and realizes through the governing valve that the selectivity of raw water import and different intercommunication mouths communicates for the conventional setting in this field, and it is no longer repeated here.

In this embodiment, in order to form the purified water outlet 1131 more conveniently, the casing 1 further includes an end cover 113, a groove is disposed on one side of the base 111 away from the housing 112, the end cover 113 covers the opening of the groove and surrounds the groove wall of the groove to form the water outlet accommodating cavity 16, the purified water outlet 1131 is formed on the end cover 113 in a penetrating manner, and the purified water outlet 1131 is communicated with the water outlet accommodating cavity 16. One end of the water outlet channel 1117 penetrates through the groove wall of the groove and is communicated with the water outlet accommodating cavity 16. The arrangement of the end cover 113 can better realize the separation of the purified water outlet 1131 and the purified water outlet channel 1114.

Example four

As shown in fig. 7, the faucet water purifier provided in this embodiment is a further improvement of the faucet water purifier provided in the third embodiment, and the structure of the faucet water purifier that is the same as that of the third embodiment is not repeated in this embodiment.

In the present embodiment, the filter 1 further includes a cleaning assembly 15, and the cleaning assembly 15 is located in the primary filtering side space 142 and is used for cleaning the surface of the filter net 13 and the filter element 12. Therefore, the convenience of cleaning the filter screen 13 and the filter element 12 can be improved, and the service life of the filter screen 13 and the filter element 12 can be prolonged.

In the present embodiment, both ends of the filter mesh 13 are open, and both ends of the filter mesh 13 may be connected to the housing 112 through the connection plate portions 132, respectively. The end of the housing 112 away from the base 111 is open, and the casing 11 further includes a cover 114 fastened to the housing 112, and the housing 112 is hermetically connected to the cover 114 and the base 111.

The cleaning assembly 15 comprises a brush bar, one end of the brush bar is connected with the cover 114, and the other end of the brush bar extends into the space between the filter screen 13 and the filter element 12 and is in contact with both the filter screen 13 and the filter element 12. The cover 114 can rotate relative to the housing 112 to drive the brush bar 114 to rotate along the circumferential direction of the filter element 12, i.e. to brush the filter screen 13 and the filter element 12. The arrangement of the cleaning component 15 has the advantages of simple structure, small occupied space, simple cleaning operation and low success rate.

Further, the brush bar comprises a mounting shaft 151 and a brush 152 arranged on the mounting shaft 151, and the brush 152 is an elongated brush, and the end of the brush preferably extends to the position of the positioning ring 1111, so as to increase the action effect on the filter cartridge 12 and the filter screen 13. The brush 152 may be a rigid brush or a flexible brush, and may be specifically selected according to the material of the filter element 12, so as to ensure the brushing effect on the filter element 12 and avoid abrasion on the surface of the filter element 12. In other embodiments, the brush bar may also be a sponge bar.

The mounting shaft 151 is preferably removably connected to the cover 114 to facilitate removal and replacement of the brush bar. Preferably, the mounting shaft 151 is rotatably coupled to the cover 114 to further enhance cleaning of the filter screen 13 and the filter cartridge 12.

The brush strips are preferably arranged in a plurality of intervals along the circumferential direction of the filter element 12 so as to further improve the cleaning effect on the filter screen 13 and the filter element 12.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. The utility model provides a filter of tap water purifier, the filter includes filter core (12) and covers casing (11) of establishing in filter core (12) outside, its characterized in that, still including being located filter screen (13) in casing (11), filter screen (13) will the inner chamber of casing (11) is split into raw water side space (141) and primary filter side space (142), raw water side space (141) with the raw water import intercommunication of filter, filter core (12) are located in primary filter side space (142), filter screen (13) with casing (11) are connected.

2. The filter of claim 1, wherein the housing (11) comprises a base (111) and a housing (112) snap-fitted to the base (111), the filter element (12) is mounted on the base (111) and located inside the housing (112), the filter screen (13) is enclosed outside the filter element (12) and connected to the base (111) or the housing (112), the raw water side space (141) is formed between the inner wall of the housing (112) and the filter screen (13), and the primary filter side space (142) is enclosed by the inner wall of the filter screen (13).

3. A filter according to claim 2, wherein the filter screen (13) comprises a filter cartridge (131), the filter cartridge (131) surrounding the filter element (12) and having at least an opening facing the base (111), at least one end of the filter cartridge (131) being detachably connected to or integrally formed with the housing (112);

or the filter screen (13) comprises a filter cylinder part (131) with one open end and one closed end, and the open end of the filter cylinder part (131) faces the base (111) and is detachably connected with the base (111).

4. A filter according to claim 3, wherein a connecting plate portion (132) extends outwardly from an end of the filter cylinder portion (131) facing the base (111), the connecting plate portion (132) is connected to an inner wall or an open end surface of the housing (112), and a water passage hole (1321) is opened in the connecting plate portion (132).

5. A filter according to claim 2, wherein the base (111) has a mounting groove opened toward the housing (112), a locating ring portion (1111) is protrudingly provided on a groove bottom of the mounting groove, the filter cartridge (12) is mounted to the locating ring portion (1111), and a lower end of the filter net (13) extends to the locating ring portion (1111).

6. A filter according to claim 5, characterised in that the filter mesh (13) is attached to the outer wall surface of the locating ring portion (1111);

or an annular groove surrounding the filter element (12) is formed in the end face of the positioning ring part (1111), and the lower end of the filter screen (13) is inserted into the annular groove.

7. The filter of any one of claims 1-6, wherein the filter is provided with a backwash mode, and the filter is configured to: in the back washing mode, water entering the interior of the machine shell (11) flows out of the machine shell (11) after passing through the inner cavity of the filter element (12), the primary filtering side space (142) and the raw water side space (141) in sequence.

8. A filter according to any one of claims 2-6, characterised in that the filter further comprises a cleaning assembly (15), which cleaning assembly (15) is located in the primary filter side space (142) for cleaning the filter screen (13) and the surface of the filter element (12).

9. A filter according to claim 8, characterised in that the housing (112) is open at one end remote from the base (111) and is sealingly snap-fitted with a cover (114), the filter mesh (13) being open at both ends;

cleaning assembly (15) include the brush strip, the brush strip is kept away from the one end of base (111) with closing cap (114) are connected, the brush strip stretch into in primary filter side space (142) and simultaneously with filter core (12) with filter screen (13) butt, closing cap (114) can be relative shell (112) are rotatory in order to drive the brush strip is followed filter core (12) circumferential displacement.

10. A faucet water purifier comprising a filter according to any one of claims 1 to 9.

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