CN216223277U - Tap water purifier - Google Patents

Abstract

The utility model provides a faucet water purifier. The faucet water purifier includes: the water inlet joint is provided with a water inlet; a filter assembly having a raw water channel including a raw water inlet and a purified water channel including a purified water inlet, the filter assembly being movably connected to the water inlet joint between a first position and a second position; the water inlet is communicated with the raw water inlet, and the purified water inlet is blocked; the waterway switching assembly is communicated with the water inlet and the purified water inlet when the filtering assembly is positioned at the second position, and the raw water inlet is blocked. Compared with the prior art, the faucet water purifier can realize the control of the waterway switching component by directly rotating the filtering component, realize the purpose of waterway switching, and simplify the structure of a product without independently arranging an operating part and the like for controlling the waterway switching component.

Description

Tap water purifier

Technical Field

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

Background

In recent years, tap water purifiers are more and more popular because of convenient installation and capability of being directly installed on taps to filter water.

The top of the existing tap water purifier is provided with a water inlet, and the bottom of the existing tap water purifier is provided with a water outlet. When the water purifier is installed, the faucet outlet is in butt joint with the water inlet, water can enter the faucet water purifier through the water inlet and then flows out of the water outlet after being filtered by the filtering component of the faucet water purifier. Still be provided with water route switch assembly on the tap water purifier, the user can adjust whether raw water or water purification that flows through water route switch assembly.

The water route switch assembly of the existing tap water purifier is generally provided with a rotary table which can rotate together with the shell in the shell, and the rotary table is provided with gravity beads which can block different water gaps along with the rotation of the rotary table so as to realize the purpose of water route switch. The faucet water purifier with the structure has various parts, complex installation, higher requirements on sealing elements such as gravity beads and the like, and high product cost

SUMMERY OF THE UTILITY MODEL

To at least partially solve the problems occurring in the prior art, according to an aspect of the present invention, there is provided a faucet water purifier including: the water inlet joint is provided with a water inlet; a filter assembly having a raw water channel including a raw water inlet and a purified water channel including a purified water inlet, the filter assembly being movably connected to the water inlet joint between a first position and a second position; the water inlet is communicated with the raw water inlet, and the purified water inlet is blocked; the waterway switching assembly is communicated with the water inlet and the purified water inlet when the filtering assembly is positioned at the second position, and the raw water inlet is blocked.

Through the arrangement, the faucet water purifier can have a switching function. When the water required by the user is purified water, the water flow can flow out of the water purifying channel through filtration. When the water required by the user is raw water, the water flow can flow out of the raw water channel without filtration. Like this, can reduce the frequency of filter component to raw water filtration according to actual in service behavior, improve filter component's life, reduce the use cost of leading water purifier. And, switch over the subassembly in the water route and when communicateing one in water inlet and raw water import or the water purification import, can also block up another to can improve the separation effect of water route switch over subassembly to the rivers, prevent the condition of switching on that raw water passageway and water purification passageway probably appear, avoid raw water to cause the pollution to the water purification. Compared with the prior art, the waterway switching assembly can be controlled by directly rotating the filtering assembly, the purpose of waterway switching is realized, operating parts and the like do not need to be independently arranged for controlling the waterway switching assembly, and the structure of a product is simplified. Moreover, the waterway switching assembly can directly switch the waterway, and the water gap is not blocked by parts such as gravity beads, so that the flow direction of the water flow is changed. Therefore, the arrangement is more direct to the waterway switching mode, the required parts are less, and the assembly is convenient.

Illustratively, the waterway switching assembly comprises: the first valve core piece is relatively fixed with the water inlet connector, and a switching water hole communicated with the water inlet is formed in the first valve core piece; the second valve core piece is relatively fixed with the filtering assembly, a first water inlet hole and a second water inlet hole which are separated from each other are arranged on the second valve core piece, the first water inlet hole is communicated with the raw water inlet, and the second water inlet hole is communicated with the purified water inlet; the switching water hole is communicated with the first water inlet hole when the filtering component is positioned at the first position; the switching water hole is communicated with the second water inlet hole when the filtering component is located at the second position. The first valve core piece and the second valve core piece which can move relatively are arranged, and the second valve core piece is provided with the first water inlet hole and the second water inlet hole which are separated, so that the waterway switching can be realized, and the structure is simple and easy to realize.

Illustratively, the filter assembly is rotatable relative to the water inlet connection in an axial direction around the filter assembly, the first valve core member is disposed in the axial direction between the second valve core member and the water inlet connection, and the second valve core member is rotatable relative to the first valve core member in the axial direction under the urging of the filter assembly. The waterway switching can be realized by rotating the filtering component, so that the moving range of the filtering component can be reduced, and a user can operate the faucet water purifier more conveniently.

Illustratively, the first valve core piece is provided with a first end face and a second end face which are arranged oppositely, the switching water hole extends from the first end face to the second end face, and the first end face is perpendicular to the axial direction; the second valve core piece is provided with a third end surface and a fourth end surface which are arranged in an opposite mode, the first water inlet hole and the second water inlet hole extend from the third end surface to the fourth end surface, the third end surface is perpendicular to the axial direction, and the first end surface is attached to the third end surface. The first end face and the third end face are attached to each other, the sealing effect can be achieved, and water flow can be prevented from leaking between the first end face and the third end face.

Illustratively, the switching water hole is located at the periphery of the rotation axis of the second valve core member, and the first water inlet hole and the second water inlet hole are distributed at intervals on the circular motion locus of the switching water hole; or the switching water hole is positioned at the periphery of the rotating axis, and the second end surface is provided with a first water tank which passes through the switching water hole and is communicated with the water inlet; and a second water tank communicated with the switching water hole is arranged on the third end surface, one of the first water inlet hole and the second water inlet hole is arranged in the second water tank and is positioned outside the circular motion track of the switching water hole, and the other of the first water inlet hole and the second water inlet hole is positioned outside the second water tank and is distributed on the circular motion track of the switching water hole. The faucet water purifier with the arrangement can conveniently realize that the first valve core piece and the second valve core piece realize the waterway switching through rotation. The arrangement of the first water tank and the second water tank can make the position of the switching water hole and the second water inlet hole more flexible.

Exemplarily, one of the water inlet connector and the first valve core member is provided with a plurality of first limiting clamping grooves around the water inlet, and the other one of the water inlet connector and the first valve core member is provided with a plurality of first limiting clamping blocks protruding towards the direction of the first limiting clamping grooves, and the first limiting clamping blocks are clamped with the first limiting clamping grooves to limit the position of the water inlet connector relative to the first valve core member. Through the cooperation of a plurality of shrinkage pools and a plurality of bellyings is connected, can make water supply connector and first case spare relatively fixed, can prevent to rotate along with filter assembly rotates.

Exemplarily, filtering component includes the tubulose interface, and the tubulose interface includes along the relative first end of its axial direction and second end, and first end is connected to water supply connector, and the second end is fixed with the end cover, and raw water import and water purification import set up on the end cover, and end cover, tubulose interface surround with water supply connector and form the installation cavity, and the water route switching module holds in the installation cavity. Through this setting, can switch the subassembly for the water route and provide installation space, can also make filtering component's outward appearance more succinct simultaneously.

Illustratively, the tubular interface is provided with a limiting part on the inner side wall, and the second valve core piece is provided with a limiting matching part, and the limiting part is matched with the limiting matching part to limit the position of the second valve core piece relative to the filter assembly. The cooperation of the limiting part and the limiting matching part can enable the second valve core piece to rotate along with the rotation of the filter assembly.

Illustratively, the limiting part comprises a plurality of clamping protrusions protruding inwards in the radial direction on the inner side wall of the tubular interface, and the limiting matching part comprises a plurality of clamping surfaces on the outer peripheral side wall of the second valve core piece, and the plurality of clamping protrusions are clamped with the clamping surfaces. The structure is simple and easy to realize.

For example, a first sealing element is clamped between the water inlet joint and the first valve core element, a first groove is formed in one of the water inlet joint and the first valve core element, and the first sealing element is clamped in the first groove; and/or a second sealing element is clamped between the end cover and the second valve core member, and a second groove is arranged on one of the end cover and the second valve core member, and the second sealing element is clamped in the second groove. Can improve the leakproofness between water supply connector, filter assembly and the water route switching module through setting up first sealing member and second sealing member, can prevent that the rivers from leaking.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the utility model are included to provide a further understanding of the utility model. The drawings illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model. In the drawings, there is shown in the drawings,

FIG. 1 is a front view of a faucet water purifier according to an exemplary embodiment of the present invention;

FIGS. 2-3 are cross-sectional views of the faucet water purifier shown in FIG. 1, with FIG. 1 showing the filter assembly in a first position and FIG. 2 showing the filter assembly in a second position;

FIG. 4 is an exploded view of a faucet water purifier according to an exemplary embodiment of the present invention; and

fig. 5 is a partially enlarged view of the faucet water purifier of fig. 4.

Wherein the figures include the following reference numerals:

100. a water inlet joint; 101. a water inlet; 200. a filter assembly; 210. a raw water channel; 211. a raw water inlet; 220. a water purification channel; 221. a purified water inlet; 230. a tubular interface; 231. a first end; 232. a second end; 233. clamping convex; 240. an end cap; 241. a second groove; 300. a waterway switching component; 310. a first valve core member; 311. switching the water holes; 312. a first end face; 313. a second end face; 314. a first water tank; 315. a first limiting clamping groove; 320. a second valve core piece; 321. a first water inlet hole; 322. a second water inlet hole; 323. a third end face; 324. a fourth end face; 325. a second water tank; 326. a clamping surface; 410. a first seal member; 420. a second seal.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description merely illustrates a preferred embodiment of the utility model and that the utility model may be practiced without one or more of these details. In other instances, well known features have not been described in detail so as not to obscure the utility model.

As shown in FIG. 1, the present invention provides a faucet water purifier. The faucet water purifier may include a water inlet connector 100, a filter assembly 200, and a waterway switch assembly 300, as shown in fig. 2-3.

The water inlet joint 100 may be provided with a water inlet 101. The water inlet 101 may be used to communicate with a source of water. Sources of water include, but are not limited to, municipal waterways, tanks, and the like. The water inlet joint 100 can be connected with a faucet so that the faucet water purifier is mounted on the faucet. In the embodiment shown in fig. 1, the water inlet joint 100 may be provided with external threads by which a user may rotatably mount the faucet water purifier to a faucet. Of course, in embodiments not shown, the water inlet connector may also be used to attach the faucet water purifier to a faucet or other water source by, for example, plugging, snapping, and other connection means.

The filter assembly 200 may have a raw water passage 210 and a purified water passage 220. The raw water passage 210 may include a raw water inlet 211. The clean water channel 220 may include a clean water inlet 221. In the embodiment shown in fig. 2-4, filter assembly 200 may include a housing and a connector, which may be separate pieces, coupled by a threaded fastener, to retain water inlet fitting 100 between the housing and the connector and to maintain water inlet fitting and filter assembly 200 for relative rotation. Of course, it is understood that the water inlet connector 100 and the filter assembly 200 may include other connection means, and the movement means may include translation and other movement means.

A filter cartridge may also be disposed within the filter assembly 200. Referring to fig. 2, after raw water passes through the water inlet 101, if water required by a user does not need to be filtered, the raw water may pass through the raw water channel 210 without passing through the filter element and then flow out of the faucet water purifier. Referring to fig. 3, if the water required by the user needs to be filtered, the water may enter the water purifying channel 220 and then be filtered by the filter element, so that the purified water is generated and then flows out of the faucet water purifier. It is understood that the raw water may be filtered by the filter element and then enter the water purifying passage 220. That is, the filter element may be disposed upstream of the water purification passage 220, may be disposed downstream of the water purification passage 220, or may be disposed in the water purification passage 220, and in short, the filter element may be connected in series to the water purification passage 220. The filter element can adopt various types of filter elements known in the field or possibly appearing in the future, such as a carbon fiber filter element, a PP filter element, a ceramic filter element, or a composite filter element formed by compounding a plurality of filter elements.

The waterway switching assembly 300 may be connected between the filter assembly 200 and the water inlet connector 100. The waterway switching assembly 300 may communicate the water inlet 101 with the raw water inlet 211 and block the purified water inlet 221 when the filter assembly 200 is in the first position. The waterway switching assembly 300 may further communicate the water inlet 101 with the purified water inlet 221 when the filter assembly 200 is in the second position, and block the raw water inlet 211. Waterway switching assembly 300 may include various structures such as a directional valve. Referring to fig. 2, when the filter assembly 200 is in the first position, raw water may enter the raw water passage 210 in the filter assembly 200 through the waterway switching assembly 300 in the direction of an arrow. Referring to fig. 3, when the filter assembly 200 is in the second position, raw water may enter the pure water passage 220 of the filter assembly 200 through the waterway switching assembly 300 in the direction of the arrow. That is, the waterway switching assembly 300 allows the water inlet 101 to communicate with the raw water inlet 211, or the water inlet 101 to communicate with the purified water inlet 221, thereby performing a function of switching the waterway. Of course, in an embodiment not shown, the waterway switching assembly 300 may also make the water inlet 101 not communicated with the raw water inlet 211 nor the purified water inlet 221, thereby achieving the effect of closing the waterway. Waterway switching assembly 300 may be manually actuated, or may be motor actuated, or any other suitable means.

Through the arrangement, the faucet water purifier can have a switching function. When the water required by the user is purified water, the water may flow out of the purified water passage 220 through filtering. When the water required by the user is raw water, the water flow may flow out of the raw water passage 210 without passing through the filtration. Therefore, the frequency of the filter assembly 200 for filtering raw water can be reduced according to the actual use condition, the service life of the filter assembly 200 is prolonged, and the use cost of the faucet water purifier is reduced. In addition, when the water inlet 101 is communicated with one of the raw water inlet 211 or the purified water inlet 221, the water path switching assembly 300 can also block the other water inlet, so that the blocking effect of the water path switching assembly 300 on water flow can be improved, the possible conduction condition of the raw water channel 210 and the purified water channel 220 can be prevented, and the pollution of raw water on purified water can be avoided. Compared with the prior art, the waterway switching assembly 300 can be controlled by directly rotating the filtering assembly 200, the purpose of waterway switching is realized, an operating part and the like do not need to be separately arranged for controlling the waterway switching assembly 300, and the structure of a product is simplified. In addition, the waterway switching assembly 300 can directly switch the waterway, instead of plugging the water gap by parts such as gravity beads, so as to change the flow direction of the water flow. Therefore, the arrangement is more direct to the waterway switching mode, the required parts are less, and the assembly is convenient.

For example, as shown in fig. 4, waterway switching assembly 300 may include a first core member 310 and a second core member 320.

The first core member 310 may be fixed relative to the inlet fitting 100. The second valve cartridge 320 may be fixed relative to the filter assembly 200. That is, the first core member 310 and the second core member 320 may follow the relative movement between the inlet fitting 100 and the filter assembly 200. The manner in which the first core member 310 is fixed relative to the inlet fitting 100 and the manner in which the second core member 320 is fixed relative to the filter assembly 200 can be varied, one of which is described in more detail below.

As shown in fig. 5, the first valve member 310 may further be provided with a switching water hole 311 communicating with the water inlet 101. The second valve core piece 320 may be provided with first and second spaced apart water inlet holes 321 and 322. The first water inlet hole 321 may communicate with the raw water inlet 211, and the second water inlet hole 322 may communicate with the purified water inlet 221. The switching water hole 311 may be in communication with the first water inlet hole 321 when the filter assembly 200 is in the first position. That is, the water flow may be introduced into the raw water passage 210 through the first water inlet hole 321 and the raw water inlet 211. The switching water hole 311 may communicate with the second water inlet hole 322 when the filter assembly 200 is in the second position. That is, the water flow can enter the purified water passage 220 through the second water inlet hole 322 and the purified water inlet 221. Whether the water flow enters the raw water passage 210 or the purified water passage 220 depends on whether the switching water hole 311 communicates with the first water inlet hole 321 or the second water inlet hole 322.

The first valve core member 310 and the second valve core member 320 which can move relatively are arranged, and the first water inlet hole 321 and the second water inlet hole 322 which are separated are arranged on the second valve core member 320, so that the water path can be switched, and the structure is simple and easy to realize.

Illustratively, the filter assembly 200 may be rotatable relative to the water inlet joint 100 about an axial direction of the filter assembly 200. The first core member 310 may be disposed in the axial direction between the second core member 320 and the water inlet fitting 100. The second valve core piece 320 may be axially rotatable relative to the first valve core piece 310 upon entrainment with the filter assembly 200. In the embodiment shown in fig. 1-3, the filter assembly 200 may have an axisymmetric structure, such as a bottle-like structure. By rotating the filter assembly 200, the second valve core piece 320 can be driven to rotate relative to the first valve core piece 310, so that the waterway can be switched. In addition, the water path switching can be realized by rotating the filter assembly 200, so that the moving range of the filter assembly 200 can be reduced, and a user can operate the faucet water purifier more conveniently.

Illustratively, the first core member 310 may have oppositely disposed first and second end surfaces 312, 313. The switching water holes 311 may extend from the first end surface 312 to the second end surface 313, and the first end surface 312 may be perpendicular to the axial direction. That is, the switching water hole 311 may penetrate the first core member 310. The second valve core member 320 may have third and fourth end faces 323, 324 that are oppositely disposed. The first and second water inlet holes 321 and 322 may extend from the third end surface 323 to the fourth end surface 324, and the third end surface 323 is perpendicular to the axial direction. That is, the first and second water inlet holes 321 and 322 may penetrate the second valve core member 320. The first end surface 312 and the third end surface 323 can be attached. When the first valve core member 310 and the second valve core member 320 rotate relatively, the switching water hole 311 can be communicated with one of the first water inlet hole 321 or the second water inlet hole 322, so as to realize the switching of the water path. The first end surface 312 and the third end surface 323 are bonded to each other, and also function as a seal, and prevent water from leaking between the first end surface 312 and the third end surface 323.

It is understood that the first end surface 312 and the third end surface 323 may not be planar, and in one embodiment, one may be a concave surface and the other may be a convex surface. Of course, in an embodiment not shown, the first end surface 312 and the third end surface 323 may also be other end surfaces having axial symmetry.

In one embodiment, the switching water hole 311 may be located at the periphery of the rotational axis of the second valve core member, and the first and second water inlet holes 321 and 322 may be spaced apart on the circular motion locus of the switching water hole 311. For example, on the second valve core piece 320, the first and second water inlet holes 321 and 322 may be provided on a circumference of the same radius R from the rotational axis; in the first core member 310, the switching water hole 311 may be provided on a circle having a radius R from the rotation axis. When the second valve core member 320 rotates relative to the first valve core member 310, the first water inlet hole 321 and the second water inlet hole 322 may overlap and communicate with the switching water hole 311, respectively, to realize water passage switching. It can be understood that the number of the first water inlet hole 321, the second water inlet hole 322 and the switching water hole 311 may not be one, and the first water inlet hole 321 and the second water inlet hole 322 may be uniformly distributed on the circumference of the same radius, or may be distributed at an included angle of any degree.

In another embodiment, the switching water hole 311 may be located at the periphery of the rotation axis, and the second end surface 313 may be provided with a first water tank 314 passing through the switching water hole 311 and communicating with the water inlet 101. The third end surface 323 may be provided with a second water tank 325 communicating with the switching water hole 311. One of the first and second water inlet holes 321 and 322 may be disposed inside the second water tank 325 and outside the circular motion trajectory of the switching water hole 311. The other of the first and second water inlet holes 321 and 322 may be located outside the second water tank 325 and distributed on a circular motion locus of the switching water hole 311. Specifically, in the embodiment shown in fig. 5, the first water inlet hole 321 may be located at the center of the second water tank 325, and the second water inlet hole 322 may be located outside the second water tank 325.

As shown in fig. 5, the first water channel 314 may extend outwardly from the location of the axis of the first core member 310, and may have a length R'. The switching water hole 311 may be provided in the first water tank 314 at a distance R' from the axis. The second water tank 325 may extend outward from the location of the axis of the second valve core 320, and may have a length of 2R', and the second water tank 325 may be axisymmetric with respect to the axis of the second valve core 320. A second water inlet hole 322 extends through the second water tank 325 along the axis of the second valve core 320. The first water inlet hole 321 is provided outside the second water tank 325, and may be at a distance R' from the axis of the second valve core member 320. When the filter assembly 200 is located at the first position, the switching water hole 311 may be rotated to communicate with the first water inlet hole 321. The water flow may sequentially enter the raw water passage 210 through the water inlet 101, the first water tank 314, the switching water hole 311, and the first water inlet hole 321. When the filter assembly 200 is located at the second position, the switching water hole 311 may be rotated to communicate with the second water tank 325. The water flow may sequentially pass through the water inlet 101, the first water tank 314, the switching water hole 311, the second water tank 325, and the second water inlet hole 322 into the purified water passage 220.

Therefore, the faucet water purifier with the structure can conveniently realize that the first valve core member 310 and the second valve core member 320 realize the waterway switching through the rotation. And the arrangement of the first water tank 314 and the second water tank 325 can make the arrangement of the positions of the switching water hole 311 and the second water inlet hole 322 more flexible.

Illustratively, one of the water inlet joint 100 and the first valve core member 310 may be provided with a plurality of first limit notches 315 around the water inlet 101, and the other may be provided with a plurality of first limit notches (not shown) protruding toward the first limit notches 315. The first limit clamping block is clamped with the first limit clamping groove 315 to limit the position of the water inlet joint 100 relative to the first valve core member 310.

In the embodiment shown in fig. 5, the first limit catch 315 may be provided on the first core member 310, which may be a plurality of recessed holes. First spacing fixture block can set up on water supply connector 100, it can be for with a plurality of shrinkage pool are to a plurality of archs that correspond. Through the matching connection of the plurality of concave holes and the plurality of protrusions, the water inlet joint 100 and the first valve core member 310 can be relatively fixed, and can be prevented from rotating along with the rotation of the filter assembly 200.

The filter assembly 200 may also include a tubular interface 230. The tubular interface 230 may include first and second ends 231, 232 opposite in an axial direction thereof. The first end 231 may be connected to the inlet fitting 100 and the second end 232 may have an end cap 240 secured thereto. The raw water inlet 211 and the purified water inlet 221 may be disposed on the end cover 240, and the end cover 240, the tubular interface 230, and the water inlet connector 100 may surround to form an installation cavity. Waterway switch assembly 300 may be received within the mounting cavity. In the embodiment shown in fig. 4-5, the tubular interface 230 may be disposed at the top of the housing of the filter assembly 200. Through this arrangement, an installation space can be provided for the waterway switching assembly 300, and the appearance of the filtering assembly 200 can be more concise.

Illustratively, a stopper may be disposed on an inner sidewall of the tubular interface 230. The second valve core piece 320 may be provided with a limit fitting portion. The spacing portion cooperates with the spacing engagement portion to define the position of the second valve cartridge piece 320 relative to the filter assembly 200. In conjunction with fig. 5, the engagement of the stop and stop engagement portions allows the second valve core piece 320 to rotate as the filter assembly 200 is rotated. It will be appreciated that if the filter assembly 200 is moved in a translational manner, the first core member 310 may also be moved in a translational manner in response to the filter assembly 200.

Illustratively, the stop portion may include a plurality of tabs 233 that project radially inward on the inner sidewall of the tubular interface 230. The limit fitting may include a plurality of detent surfaces 326 on the peripheral sidewall of the second valve core piece 320. The plurality of engaging projections 233 are engageable with the engaging surface 326. Referring to fig. 5, the outer peripheral side wall of the second valve core member 320 may include a plurality of flat surfaces, which are the engagement surfaces 326. The plurality of protrusions 233 may be divided into a plurality of groups, each group having two protrusions 233, and a line connecting the farthest ends of the two protrusions may be a straight line. The straight line may engage with a corresponding flat surface of the second valve core member 320. In this manner, the second valve cartridge piece 320 can be secured relative to the filter assembly 200 via the spacing portion and the spacing engagement portion.

It is understood that the position-limiting part and the position-limiting matching part may be any structures capable of fixing, and are not limited to the above-mentioned embodiments.

Illustratively, a first seal 410 is sandwiched between the inlet fitting 100 and the first core member 310, and a first groove may be provided on one of the inlet fitting 100 and the first core member 310. The first seal 410 may snap into the first groove.

Alternatively, a second seal member 420 is sandwiched between the end cover 240 and the second valve core member 320, and a second groove 241 may be provided on one of the end cover 240 and the second valve core member 320. The second seal 420 may be snapped into the second groove 241.

In the embodiment shown in fig. 5, a first groove may be provided on the water inlet joint 100 and a second groove 241 may be provided on the end cap 240. Each of the first and second seals 410 and 420 may be divided into five through-holes including a central hole and peripheral holes distributed in a matrix structure around the central hole, and the five through-holes are not communicated with each other. The reason for this is that in the embodiment shown in fig. 4-5, the water path is switched once for every 90 degrees of rotation of filter assembly 200. It will be appreciated, of course, that the first and second seals 410, 420 may have other patterns in other embodiments where rotation is provided to switch water paths.

Accordingly, the first and second sealing members 410 and 420 may improve the sealing property between the inlet joint 100, the filter assembly 200, and the waterway switching assembly 300, thereby preventing the leakage of the water flow.

In the description of the present invention, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front", "rear", "upper", "lower", "left", "right", "lateral", "vertical", "horizontal" and "top", "bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and in the case of not making a reverse explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

For ease of description, relative terms of regions such as "above … …", "above … …", "above … …", "above", and the like may be used herein to describe the regional positional relationship of one or more components or features with other components or features as illustrated in the figures. It is to be understood that the relative terms of the regions are intended to encompass not only the orientation of the element as depicted in the figures, but also different orientations in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the utility model to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A faucet water purifier, comprising:

the water inlet joint is provided with a water inlet;

a filter assembly having a raw water channel including a raw water inlet and a purified water channel including a purified water inlet, the filter assembly being movably connected to the water inlet joint between a first position and a second position; and

the water path switching assembly is connected between the filtering assembly and the water inlet joint, and is used for communicating the water inlet with the raw water inlet and plugging the purified water inlet when the filtering assembly is at the first position; the waterway switching assembly is used for communicating the water inlet with the purified water inlet when the filtering assembly is positioned at the second position, and plugging the raw water inlet.

2. The faucet water purifier of claim 1, wherein the waterway switch assembly comprises:

the first valve core piece is relatively fixed with the water inlet joint, and a switching water hole communicated with the water inlet is formed in the first valve core piece;

the second valve core piece is fixed relative to the filtering assembly, a first water inlet hole and a second water inlet hole which are separated from each other are formed in the second valve core piece, the first water inlet hole is communicated with the raw water inlet, and the second water inlet hole is communicated with the purified water inlet;

wherein the switching water hole is communicated with the first water inlet hole when the filter assembly is at the first position; and the switching water hole is communicated with the second water inlet hole when the filtering assembly is positioned at the second position.

3. The faucet water purifier of claim 2, wherein the filter assembly is rotatable relative to the water inlet fitting about an axial direction of the filter assembly, the first valve core member being disposed between the second valve core member and the water inlet fitting along the axial direction, the second valve core member being rotatable relative to the first valve core member about the axial direction as carried by the filter assembly.

4. The faucet water purifier of claim 3, wherein the first valve core member has a first end surface and a second end surface that are disposed opposite to each other, the switching water hole extends from the first end surface to the second end surface, and the first end surface is perpendicular to the axial direction; the second valve core piece is provided with a third end face and a fourth end face which are arranged oppositely, the first water inlet hole and the second water inlet hole extend from the third end face to the fourth end face, the third end face is perpendicular to the axial direction, and the first end face is attached to the third end face.

5. The faucet water purifier as recited in claim 4 wherein the switch water hole is located peripherally to the rotational axis of the second valve core member, the first and second water inlet holes being spaced apart on a circular motion path of the switch water hole;

or the switching water hole is positioned at the periphery of the rotating axis, and the second end face is provided with a first water tank which passes through the switching water hole and is communicated with the water inlet; and a second water tank communicated with the switching water hole is arranged on the third end surface, one of the first water inlet hole and the second water inlet hole is arranged in the second water tank and is positioned outside the circular motion track of the switching water hole, and the other of the first water inlet hole and the second water inlet hole is positioned outside the second water tank and is distributed on the circular motion track of the switching water hole.

6. The faucet water purifier according to claim 2, wherein one of the water inlet connector and the first valve core member is provided with a plurality of first limiting clamping grooves around the water inlet, and the other one of the water inlet connector and the first valve core member is provided with a plurality of first limiting clamping blocks protruding towards the first limiting clamping grooves, and the first limiting clamping blocks are clamped with the first limiting clamping grooves to limit the position of the water inlet connector relative to the first valve core member.

7. The faucet water purifier of claim 2, wherein the filter assembly includes a tubular interface, the tubular interface includes a first end and a second end opposite to each other along an axial direction thereof, the first end is connected to the water inlet connector, the second end is fixed with an end cap, the raw water inlet and the purified water inlet are disposed on the end cap, the tubular interface and the water inlet connector surround to form an installation cavity, and the waterway switching assembly is accommodated in the installation cavity.

8. The faucet water purifier of claim 7, wherein the inner sidewall of the tubular interface is provided with a limit stop, and the second valve core piece is provided with a limit stop engagement portion, the limit stop engaging the limit stop engagement portion to define a position of the second valve core piece relative to the filter assembly.

9. The faucet water purifier of claim 8, wherein the stopper portion includes a plurality of catching projections projecting radially inward on an inner side wall of the tubular interface, and the stopper fitting portion includes a plurality of catching faces on an outer peripheral side wall of the second valve core member, the plurality of catching projections catching with the catching faces.

10. The faucet water purifier of claim 7, wherein a first seal is sandwiched between the water inlet connector and the first valve core member, and a first groove is provided on one of the water inlet connector and the first valve core member, and the first seal is snapped into the first groove;

and/or a second sealing element is clamped between the end cover and the second valve core member, a second groove is arranged on one of the end cover and the second valve core member, and the second sealing element is clamped in the second groove.

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