CN217745987U - Tap water purifier - Google Patents

Abstract

The embodiment of the utility model provides a tap water purifier. The faucet water purifier comprises a filter element assembly and a water path switching assembly, wherein the water path switching assembly is provided with a first water outlet, the filter element assembly comprises a filter shell and a filter element arranged in the filter shell, the filter shell is provided with a filter element water inlet, and a first thread is arranged on the first water outlet; and the edge of the water inlet of the filter element extends to the outside of the filter shell to form an annular flange, a second thread is arranged on the annular flange, and the first thread is connected to the second thread. The utility model discloses tap water purifier, filter element group spare and water route switching module can directly be connected through first screw thread and second screw thread. The faucet water purifier does not need to be provided with other connecting pieces such as screws. In this way, during production, the operator does not need to reach into the interior of the filter housing to screw the screws. And, the operator can directly observe the connection operation of the first screw and the second screw, so that the connection reliability can be ensured. Therefore, the production difficulty of the faucet water purifier is reduced, and the product quality is better.

Description

Tap water purifier

Technical Field

The utility model relates to a technical field of aqueous cleaning specifically, relates to a tap water purifier.

Background

In recent years, tap water purifiers are more and more popular because the tap water purifiers are convenient to install and can be directly installed on taps to filter raw water.

The faucet water purifier comprises a filter element assembly and a waterway switching assembly. The waterway switching component is provided with a first water outlet. The filter element assembly includes a filter housing and a filter element disposed within the filter housing. The filter shell is provided with a filter element water inlet. Raw water can sequentially pass through the first water outlet and the filter element water inlet to enter the filter element for filtration so as to produce purified water. The tap water purifier also comprises a screw which can penetrate through the side wall of the filter shell to be screwed to the first water outlet, so that the first water outlet is communicated with the water inlet of the filter element.

However, in the faucet water purifier, an operator needs to extend into the filter housing to screw the screws during production. Operation is very limited due to the small space inside the filter housing. Moreover, the operation process cannot be directly observed, so that the operation difficulty is high. Therefore, it is highly desirable to provide a new faucet water purifier.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems existing in the prior art, the embodiment of the utility model provides a tap water purifier. The faucet water purifier comprises a filter element assembly and a water path switching assembly, wherein the water path switching assembly is provided with a first water outlet, the filter element assembly comprises a filter shell and a filter element arranged in the filter shell, the filter shell is provided with a filter element water inlet, and a first thread is arranged on the first water outlet; and the edge of the water inlet of the filter element extends to the outside of the filter shell to form an annular flange, and a second thread is arranged on the annular flange, wherein the first thread is connected to the second thread.

The utility model discloses tap water purifier, filter element group spare and water route switching module can directly be connected through first screw thread and second screw thread. The faucet water purifier does not need to be provided with other connectors such as screws. In this way, the operator does not need to reach inside the filter housing to turn the screws during production. And, the operator can directly observe the connection operation of the first and second threads, so that it is possible to ensure reliable connection. Therefore, the production difficulty of the faucet water purifier is reduced, and the product quality is better.

Illustratively, the first thread is an external thread provided on an end side of the first water outlet, and the second thread is an internal thread provided on the annular flange. So set up, first delivery port can insert in the annular flange to improve annular flange's mechanical strength

Illustratively, the first water outlet is located outside an inner sidewall of the filter housing. Thus, the first water outlet does not occupy the inner space of the filter shell, so that more water can be contained in the filter shell.

Illustratively, the faucet water purifier further includes a sealing member that is clamped between the first water outlet and the annular flange in the radial direction. The sealing element can play a better sealing effect, and the risk of water leakage is reduced. The radial direction is generally referred to as the radial direction of the annular flange.

The first thread is an external thread arranged on the side surface of the end part of the first water outlet, a first annular groove is further arranged on the side surface of the end part of the first water outlet, the first annular groove is far away from the filter element relative to the external thread, and the sealing element is fixed to the first annular groove; or the second thread is an external thread arranged on the outer peripheral wall of the annular flange, a second annular groove is further arranged on the outer peripheral wall of the annular flange, the second annular groove is closer to the filter element relative to the external thread, and the sealing element is fixed to the second annular groove. So set up, the difficult aversion that takes place of sealing member to can ensure that sealed effect is better.

Illustratively, the annular flange is integrally disposed on the filter housing. Therefore, the connecting structure can be reduced, and the risk of water leakage is reduced.

Exemplarily, the waterway switching component comprises a valve casing and a valve core, the first water outlet is arranged on the valve casing, a water inlet and a second water outlet are further arranged on the valve casing, the valve core is movably arranged in the valve casing between the raw water station and the water purification station, wherein the water inlet is communicated with the first water outlet when the valve core is at the water purification station, and is communicated with the second water outlet when the valve core is at the raw water station. So set up, the structure of water route switching module is succinct, low in production cost.

Exemplarily, the valve casing is including being cylindric case installation cavity, and the case is around cylindrical the central axis pivot ground setting between former water station and water purification station in the case installation cavity, and first delivery port is connected to the tip of case installation cavity coaxially, and the internal diameter of case installation cavity is greater than the internal diameter of first delivery port, and the wall thickness of case installation cavity is less than the wall thickness of first delivery port. Thus, the first water outlet can prevent the valve core from falling out. And, the first water outlet with thicker wall thickness can be more convenient for arranging the first thread.

Illustratively, an end of the cartridge is spaced from the first outlet port; and/or the outer diameter of the valve core installation cavity is equal to the outer diameter of the first water outlet. Therefore, the friction force of the valve core in the pivoting process can be reduced, and labor is saved. In addition, the valve shell is convenient to process and low in manufacturing cost.

Illustratively, the water inlet is positioned at the top of the valve casing, the second water outlet is positioned at the bottom of the valve casing, the first water outlet is positioned at the side surface of the valve casing, the peripheral wall of the valve core is provided with a valve core water inlet and a water passing arc-shaped groove which are spaced along the circumferential direction of the valve core, the water passing arc-shaped groove extends along the circumferential direction, the first end part of the valve core is provided with a valve core water outlet, the valve core water inlet and the valve core water outlet are communicated through a water flow channel inside the valve core, and the valve core water outlet is communicated with the first water outlet, wherein when the valve core is positioned at a water purifying station, the water inlet is aligned with the valve core water inlet so as to communicate the water inlet with the first water outlet, and the water passing arc-shaped groove is staggered with the water inlet; when the valve core is positioned at the raw water station, the water inlet is staggered with the water inlet of the valve core, and the water inlet and the second water outlet are aligned with the water passing arc-shaped groove, so that the water inlet is communicated with the second water outlet. The valve core is provided with a water passing arc-shaped groove, so that one water gap can be reduced. Therefore, compared with the existing valve core, the water passing arc-shaped groove only needs to be inwards sunken for one part from the outer peripheral wall of the valve core, and does not need to penetrate through the outer peripheral wall of the valve core. Therefore, the mechanical strength of the valve core is relatively high, so that the phenomena of damage, even breakage and the like can be reduced. Like this, the water route switching module is applied to the great scene of water pressure, and the case is more reliable, and life is longer. And, because the cartridge outlet is disposed at the first end, components such as the cartridge assembly may be in direct communication with the cartridge. Therefore, the faucet water purifier adopting the waterway switching assembly is simple in structure and low in production cost.

Exemplarily, the water inlet sets up at the top of valve casing, and the second delivery port sets up in the bottom of valve casing, and first delivery port sets up in the side of valve casing, and the filter core water inlet sets up in the side of straining the shell, and the bottom of straining the shell is provided with the filter core delivery port, and filter core water inlet and filter core delivery port are via the filter core intercommunication. So set up, water purification and raw water all can flow down, and the user of being convenient for connects and gets.

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. The summary of the invention 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 used as part of the utility model for understanding the utility model. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

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

FIG. 2 is a cross-sectional view of the faucet water purifier shown in FIG. 1;

FIG. 3 is a partially enlarged view of the faucet water purifier shown in FIG. 2;

FIG. 4 is an exploded view of the faucet water purifier shown in FIG. 1;

fig. 5 is an exploded view of the waterway switching assembly shown in fig. 1;

FIG. 6A is an angled perspective view of the valve cartridge shown in FIG. 5;

FIG. 6B is a perspective view of another angle of the valve cartridge shown in FIG. 5;

FIG. 6C is a cross-sectional view of the valve cartridge shown in FIG. 5;

FIG. 7A is a perspective view of the valve housing shown in FIG. 5;

FIG. 7B is a cross-sectional view of the valve housing shown in FIG. 5;

FIG. 8A is a front view of the upper barrel shown in FIG. 4; and

fig. 8B is a sectional view of the upper cylinder shown in fig. 4.

Wherein the figures include the following reference numerals:

100. a waterway switching component; 200. a valve housing; 201. an inner wall; 210. a water inlet; 221. a first water outlet; 222. a second water outlet; 230. an opening; 240. a vertical section; 250. a horizontal segment; 260. A first thread; 270. a first annular groove; 280. a valve core mounting cavity; 290. a pin hole; 300. a valve core; 301. a first end portion; 302. a second end portion; 303. an outer peripheral wall; 311. a valve core water inlet; 312. A valve core water outlet; 320. a water passing arc-shaped groove; 330. a recessed portion; 340. a limiting arc-shaped groove; 341. A first end; 342. a second end; 350. a limiting part; 360. an annular groove; 370. a limiting groove; 380. A water flow channel; 410. a gasket; 411. a through hole; 420. a seal member; 430. an operating member; 440. A seal member; 500. a filter element assembly; 600. a filter shell; 601. an inner sidewall; 610. a filter element water inlet; 620. a water outlet of the filter element; 630. an annular flange; 640. a second thread; 660. an upper cylinder body; 661. An opening; 670. a lower cylinder body; 671. a filter element mounting portion; 680. a transparent cover; 700. a filter element; 710. The filter element is provided with a matching part; 810. a seal member; 820. a seal member; 830. a connector assembly; 831. An external connection; 832. an internal connection; 833. a seal member; 840. a bubbler assembly; 841. A bubbler housing; 842. a bubbler; 843. a bubbler stand; 844. a seal member; 845. filtering with a screen; 850. and a 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 preferred embodiments of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

According to an aspect of the utility model, a water route switching module is provided. The waterway switching assembly can be used for switching waterways. The waterway switch assembly can be applied to any suitable device, including but not limited to faucet water purifiers. Therefore, according to another aspect of the present invention, there is also provided a faucet water purifier. The waterway switching assembly and the faucet water purifier according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-5, the waterway switching assembly 100 may include a valve housing 200 and a valve core 300.

The valve spool 300 may be at least partially disposed within the valve housing 200. The valve housing 200 may protect the valve spool 300. The valve housing 200 may be provided with a water inlet 210, a first water outlet 221 and a second water outlet 222. The water inlet 210, the first water outlet 221, and the second water outlet 222 may be provided at any suitable positions on the valve housing 200.

The water inlet 210 may be used for communication to a water source. The water source may supply raw water, which may enter the valve housing 200 through the water inlet 210. Water sources include, but are not limited to, municipal waterways or tanks, and the like. In embodiments where waterway switch assembly 100 is applied to a faucet water purifier, water inlet 210 may be connected to a faucet, which may be connected to a water source. In embodiments where waterway switching assembly 100 is applied to other devices, water inlet 210 may also be connected to a water passing member such as a water pipe. To facilitate connection of the water inlet 210 to the water passing member, the waterway switching assembly 100 may further include a connector assembly 830. One end of the connector assembly 830 may be connected to the water inlet 210 by any suitable means, such as welding, gluing, or snapping. The other end of the connector assembly 830 may be used to connect to the above-described water passing member. Connector assembly 830 includes, but is not limited to, a quick connector, a bayonet connector, or a threaded connector, among others. In the embodiment shown in the figures, connector assembly 830 may include an outer connector 831, an inner connector 832, and a seal 833. The outer connecting member 831 may be provided with a screw thread to be screwed to the above-mentioned water passing member. The outer connector 831 may be connected to the water inlet 210 by the inner connector 832. Internal connection 832 includes, but is not limited to, a steel ferrule. A seal 833 may be provided on the water inlet 210. In practice, the seal 833 may be clamped between the water inlet 210 and the above-mentioned water passing member to provide a better seal. The seal 833 includes, but is not limited to, a gasket or packing and the like.

As shown in fig. 6A-6C, the valve cartridge 300 may be substantially cylindrical. The valve spool 300 may have a first end 301, a second end 302, and an outer peripheral wall 303. The outer peripheral wall 303 may extend in the axial direction of the spool 300. The first end portion 301 and the second end portion 302 may be disposed opposite to each other in the axial direction of the spool 300, and are located at both ends of the outer circumferential wall 303.

The valve cartridge 300 may have a water purification station and a raw water station. The valve cartridge 300 may be movably (including but not limited to pivotably) disposed within the valve housing 200 between a water purification station and a raw water station. When the valve core 300 is located at the water purification station, the water inlet 210 can be communicated with the first water outlet 221 and cut off from the second water outlet 222; when the valve core 300 is located at the raw water station, the water inlet 210 may be communicated with the second water outlet 222 and cut off from the first water outlet 221. With such an arrangement, the waterway switching assembly 100 has a simple structure and a low production cost.

When the valve core 300 is located at the raw water station, raw water may sequentially flow out through the water inlet 210 and the second water outlet 222. The user can receive the raw water flowing out from the second water outlet 222 for watering flowers, cleaning, and the like. Illustratively, waterway switching assembly 100 may further include a bubbler assembly 840. Bubbler assembly 840 may be attached to second outlet 222 by any suitable means such as welding, gluing or snapping. The bubbler assembly 840 may employ various types of bubblers known in the art or that may occur in the future. The bubbler may sufficiently mix the raw water and the air flowing out of the second water outlet 222. With the addition of air, the scouring force of raw water can be effectively improved, thereby effectively reducing the water consumption and achieving the purpose of saving water. In the embodiment shown in the figures, the bubbler assembly 840 may include a bubbler housing 841, a bubbler 842, a bubbler support 843, a seal 844, and a screen 845. The bubbler housing 841 may be connected to the second water outlet 222 by any suitable means, such as by a threaded connection. The bubbler 842 may be disposed on a bubbler stand 843. The bubbler bracket 843 may be attached inside the bubbler cabinet 841. A seal 844 may be clamped between the second water outlet 222 and the bubbler 842 to provide a better seal. The seal 844 includes, but is not limited to, a seal ring or a gasket, etc. A filter screen 845 may be clamped between the bubbler 842 and the bubbler bracket 843 to filter the raw water. The screen 845 includes, but is not limited to, a stainless steel screen. The number of screens 845 can be any number, including but not limited to two as shown, such as one, three, or more. In embodiments where the screen 845 comprises a plurality, the plurality of screens 845 may be the same or different.

The faucet water purifier may also include a filter cartridge assembly 500. A cartridge inlet 610 and a cartridge outlet 620 may be provided on the cartridge module 500. The valve housing 200 may be connected to the cartridge assembly 500. First water outlet 221 may be connected to cartridge water inlet 610. When the valve core 300 is located at the water purification station, raw water may sequentially pass through the water inlet 210, the first water outlet 221 and the filter element water inlet 610, and thus enter the filter element assembly 500 for filtration. After the raw water is filtered, purified water can be formed. The purified water may flow out through the cartridge outlet 620. The user can take the purified water flowing out of the filter element water outlet 620 for drinking or cooking and the like.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and many variations and modifications can be made according to the teaching of the present invention. Illustratively, the first water outlet 221 may also be connected to any other suitable component, such as a heating component or the like. For example, the valve core 300 may further include a water purification station and a raw water station, such as a communication station communicating with the first water outlet 221 and the second water outlet 222, a stop station stopping the first water outlet 221 and the second water outlet 222, and the like. Such variations and modifications are intended to fall within the scope of the present invention as claimed.

The manner in which the spool 300 pivots may be any, including but not limited to manual, electric, or magnetic coupling. Illustratively, waterway switching assembly 100 may further include an operating member 430. The operating member 430 may be coupled to the second end 302 of the valve cartridge 300 by any suitable means, such as welding, adhesive, or threaded connection. The valve cartridge 300 may be pivotable between the water purification station and the raw water station by the operation member 430. In practical applications, a user may operate the operation member 430 to drive the valve plug 300 to pivot between the water purification station and the raw water station through the operation member 430. The type of the operation member 430 is not limited, and includes, but is not limited to, a handle or a knob. By providing the operation member 430, a user can control the valve element 300 to pivot between the water purification station and the raw water station more conveniently. The user experience is better.

Illustratively, as shown in fig. 7A-7B, the sides of the valve housing 200 may also be provided with openings 230. Operating member 430 may be inserted into opening 230. Also, the operating member 430 may be sleeved on the second end portion 302 of the valve element 300. Illustratively, the second end 302 of the valve cartridge 300 may have a stop groove 370 disposed thereon. The operating member 430 may be provided with a stopper rib (not shown). The limiting rib can be inserted into the limiting groove 370 to improve the mechanical strength of the operating element 430 sleeved on the second end portion 302 of the valve element 300, and prevent the two from separating. With such an arrangement, the waterway switching assembly 100 has a simple structure, is convenient to assemble, and has a low cost.

Illustratively, the water inlet 210 may be located at the top of the valve housing 200. The second water outlet 222 may be located at the bottom of the valve housing 200. The first water outlet 221 may be located at a side of the valve housing 200.

Specifically, the valve housing 200 may include a vertical section 240 and a horizontal section 250. The vertical section 240 may extend in a vertical direction. The horizontal segment 250 may extend in a horizontal direction. Vertical segment 240 and horizontal segment 250 may be L-shaped or T-shaped. One end of horizontal segment 250 may be attached to the side of vertical segment 240 by any suitable means, such as welding, gluing, connector attachment, or threading. Illustratively, the vertical section 240 and the horizontal section 250 may be integrally formed by molding. Therefore, the connecting structure can be reduced, and the risk of water leakage is reduced.

The water inlet 210 may be located at the top of the vertical section 240. The second water outlet 222 may be located at the bottom of the vertical section 240. The first water outlet 221 may be located at the other end of the horizontal section 250. The valve cartridge 300 may be inserted into the vertical section 240 and the horizontal section 250. The valve core 300 may be sealingly connected with the inner sidewall of the horizontal section 250. So set up, raw water can directly flow out from first delivery port 221 through case delivery port 312 of case 300, then gets into filter element group spare 500 through filter element water inlet 610 of filter element group spare 500 and filters. Therefore, other water passing members do not need to be arranged, and the waterway switching assembly 100 is simple in structure and low in manufacturing cost.

Illustratively, the outer end of the horizontal segment 250 may be provided with a first thread 260. That is, the first screw 260 may be provided on the first water outlet 221. The filter cartridge assembly 500 may be provided with second threads 640. That is, second threads 640 may be disposed on cartridge inlet 610. First threads 260 may be coupled to second threads 640 such that first outlet 221 communicates with cartridge inlet 610. The thread types of the first and second threads 260 and 640 are not limited as long as they can be coupled to each other. So set up, the structure is succinct, the installation and dismantlement of being convenient for.

Illustratively, the cartridge assembly 500 can include a cartridge housing 600 and a cartridge 700.

Referring collectively to fig. 8A-8B, cartridge inlet 610 and cartridge outlet 620 can be disposed at any suitable location on filter housing 600. Illustratively, the filter case 600 may include an upper cylinder 660 and a lower cylinder 670. The upper barrel 660 and the lower barrel 670 may be joined by any suitable means, such as welding, adhesive, or threaded connection. Illustratively, the cartridge assembly 500 may also include a seal 810. The seal 810 includes, but is not limited to, a seal ring or a gasket, etc. The seal 810 may be clamped between the upper barrel 660 and the lower barrel 670. The sealing member 810 can achieve a good sealing effect, and reduce the risk of water leakage.

Illustratively, in embodiments where water inlet 210 is disposed at the top of valve housing 200 and second water outlet 222 is disposed at the bottom of valve housing 200, cartridge water inlet 610 may be disposed at a side of filter housing 600. The cartridge outlet 620 may be disposed at the bottom of the filter housing 600. Cartridge inlet 610 and cartridge outlet 620 may communicate via cartridge 700. After passing through the filter inlet 610, the raw water may enter the filter 700 for filtration. The filtered purified water can flow out through the filter element water outlet 620. So set up, water purification and raw water all can flow down, and the user of being convenient for connects and gets.

The filter element 700 may be any type of filter element known in the art or that may come into existence in the future, including but not limited to a carbon fiber filter element, a PP filter element, a ceramic filter element, or a composite filter element formed by combining a plurality of filter elements. The filter cartridge 700 may be disposed within the filter housing 600 by any suitable means, such as welding or bonding. Illustratively, a cartridge mounting portion 671 can be disposed on the lower barrel 670. The cartridge 700 can be provided with a cartridge mounting mating portion 710. The cartridge mounting portion 671 can be coupled with the cartridge mounting mating portion 710 such that the cartridge 700 is coupled to the lower barrel 670. The cartridge mounting portion 671 and the cartridge mounting engagement portion 710 can have any configuration. In the embodiment shown in the figures, cartridge mounting portion 671 and cartridge mounting mating portion 710 can each be an annular protrusion. The cartridge mounting mating portion 710 can be inserted into the cartridge mounting portion 671. The cartridge outlet 620 may be disposed within the cartridge mounting portion 671. Illustratively, the cartridge assembly 500 may also include a seal 820. The seal 820 includes, but is not limited to, a seal ring or a gasket, etc. The seal member 820 can be captured between the cartridge mounting portion 671 and the cartridge mounting mating portion 710. The sealing member 820 may have a good sealing effect, thereby preventing raw water from directly flowing to the cartridge outlet 620 without passing through the cartridge 700.

The top of the upper cylinder 660 may be provided with an opening 661. The filter cartridge assembly 500 may also include a transparent cover 680. The transparent cover 680 may be attached to the opening 661 by any suitable means, such as welding, adhesive, a screw-on or threaded connection. The transparent cover 680 may cover the opening 661. By providing a transparent cover 680, a user can directly observe the usage of the filter cartridge 700, thereby facilitating the timely replacement of the filter cartridge 700. The material of the transparent cover 680 includes, but is not limited to, glass or acryl, etc. Illustratively, the cartridge assembly 500 may also include a seal 850. The seal 850 includes, but is not limited to, a seal ring or gasket, etc. The seal 850 may be sandwiched between the transparent cover 680 and the opening 661. The sealing member 850 can achieve a good sealing effect, and reduce the risk of water leakage.

The second threads 640 may be provided directly on the filter housing 600. Illustratively, the edge of the cartridge inlet 610 may extend outwardly of the filter housing 600 with an annular flange 630. The annular flange 630 may be disposed on the filter housing 600 by any suitable means, such as welding or gluing. Preferably, the annular flange 630 may be integrally provided on the filter housing 600 by molding or machining, etc. Therefore, the connecting structure can be reduced, and the risk of water leakage is reduced. The second threads 640 may be disposed on the annular flange 630. Thus, the wall thickness of the filter housing 600 can be reduced, so that the material consumption can be reduced, and the cost can be reduced.

Therefore, the faucet water purifier of the present invention, the filter element assembly 500 and the waterway switching assembly 100 can be directly connected by the first screw 260 and the second screw 640. The faucet water purifier does not need to be provided with other connecting pieces such as screws. In this way, during production, the operator does not need to reach into the interior of the filter housing to screw the screws. Also, the operator can directly observe the coupling operation of the first and second screw threads 260 and 640, so that it is possible to ensure reliable coupling. Therefore, the production difficulty of the faucet water purifier is reduced, and the product quality is better.

Illustratively, the first screw 260 may be an external screw provided on an end side of the first water outlet 221. The second threads 640 may be internal threads provided on the annular flange 630. So configured, the first water outlet 221 may be inserted into the annular flange 630 to improve the mechanical strength of the annular flange 630. In other embodiments, the first threads 260 may be internal threads and the second threads 640 may be external threads.

Illustratively, the first water outlet 221 may be located outside the inner sidewall 601 of the filter housing 600. That is, the first water outlet 221 may be inserted into an outer side of the inner sidewall 601. In this way, the first water outlet 221 does not occupy the inner space of the filter housing 600, so that more water can be contained in the filter housing 600.

In order to improve the sealing performance and reduce the risk of water leakage, the first and second threads 260 and 640 may have a relatively precise thread structure and/or a relatively precise machining precision, and/or a sealant may be applied to the first and second threads 260 and 640.

Illustratively, the faucet water purifier may also include a seal 420. The seal 420 includes, but is not limited to, a seal ring or a gasket, etc. In the radial direction, the seal 420 may be clamped between the first water outlet 221 and the annular flange 630. The sealing member 420 can achieve a good sealing effect, and reduce the risk of water leakage. The radial direction is generally referred to as the radial direction of the annular flange 630.

Illustratively, the first screw 260 may be an external screw provided on an end side of the first water outlet 221. A first annular groove 270 may be further provided on the end side of the first water outlet 221. The first annular groove 270 is remote from the cartridge 700 relative to the external threads. The seal 420 may be secured to the first annular groove 270.

Illustratively, the second threads 640 may be external threads provided on the outer peripheral wall of the annular flange 630. A second annular groove may also be provided in the outer peripheral wall of the annular flange 630. The second annular groove is closer to the filter cartridge 700 than the external thread. The seal 420 may be secured to the second annular groove. With the arrangement, the sealing member 420 is not easy to displace, so that a good sealing effect can be ensured.

Illustratively, the valve housing 200 may include a valve core mounting cavity 280 having a cylindrical shape. The valve cartridge 300 may be pivotably disposed in the valve cartridge mounting chamber 280 between the raw water station and the water purification station around the central axis of the cylinder. The first water outlet 221 may be coaxially connected to an end of the cartridge mounting cavity 280. The cartridge mounting cavity 280 may have an inner diameter greater than that of the first water outlet 221. The wall thickness of the cartridge mounting cavity 280 may be smaller than the wall thickness of the first outlet 221. Thus, the first water outlet 221 may prevent the valve cartridge 300 from falling out. Also, the first water outlet 221 having a thicker wall thickness may further facilitate the provision of the first screw 260.

Illustratively, the end of the valve cartridge 300 may be spaced apart from the first water outlet 221. In this way, friction during pivoting of the valve cartridge 300 may be reduced, thereby saving more labor.

For example, the outer diameter of the cartridge mounting cavity 280 may be equal to the outer diameter of the first water outlet 221. Thus, the valve housing 200 is easy to process and has a low manufacturing cost.

The valve core 300 can be provided with a valve core water inlet 311, a valve core water outlet 312 and a water passing arc-shaped groove 320. The water passing arc-shaped groove 320 may extend in a circumferential direction of the valve cartridge 300. The length of the extension of the arc-shaped water passing groove 320 may be any, such as half circumference or 3/4 circumference of the valve core 300 in the circumferential direction. The cartridge water inlet 311 and the water passing arc-shaped groove 320 may be spaced apart in a circumferential direction of the cartridge 300. The cartridge outlet 312 may be disposed on the first end 301 of the cartridge 300. The cartridge inlet 311 and the cartridge outlet 312 may communicate via a water flow passage 380 inside the cartridge 300. The cartridge outlet port 312 may communicate with the first outlet port 221.

With the cartridge 300 in the clean water position, the water inlet 210 may be aligned with the cartridge water inlet 311. Thus, the water inlet 210 may communicate with the first water outlet 221, and the water passing arc-shaped groove 320 may be staggered from the water inlet 210. So set up, raw water can loop through water inlet 210, case water inlet 311, rivers passageway 380, case delivery port 312 and first delivery port 221 to get into filter element group spare 500 and filter. And, since the water passing arc-shaped groove 320 is staggered with the water inlet 210, the raw water cannot flow to the water passing arc-shaped groove 320, thereby stopping from the second water outlet 222.

When the valve core 300 is located at the raw water station, the water inlet 210 may be staggered with respect to the valve core water inlet 311. Thus, the raw water cannot flow to the valve core water outlet 312 and is blocked from the first water outlet 221. Also, the water inlet 210 and the second water outlet 222 may be aligned with the water passing arc-shaped groove 320. In this way, the water inlet 210 may communicate with the second water outlet 222. So arranged, the raw water can pass through the water inlet 210 and the water passing arc-shaped groove 320 in sequence, and thus can flow out from the second water outlet 222.

The embodiment of the utility model provides a water route switching module 100 because case 300 is provided with water arc groove 320 to can reduce a mouth of a river. Therefore, compared with the conventional valve core, the water passing arc-shaped groove 320 only needs to be recessed from the outer peripheral wall 303 of the valve core 300 by a part, and does not need to penetrate through the outer peripheral wall 303 of the valve core 300. Therefore, the mechanical strength of the valve cartridge 300 is relatively high, so that the occurrence of damage, even breakage, or the like can be reduced. Thus, the valve element 300 of the waterway switching assembly 100 is more reliable and has a longer service life when being applied to a scene with a larger water pressure. Also, since the cartridge outlet 312 is disposed at the first end 301, components such as the cartridge assembly 500 may be in direct communication with the cartridge 300. Thus, the faucet water purifier adopting the waterway switching assembly 100 has a simple structure and low production cost.

In addition, in the conventional faucet water purifier, the operating part needs to be arranged on the front side or the rear side of the filter element component, and a user can only operate the operating part left and right. With the waterway switching assembly 100 according to the embodiment of the present invention, since the operation member 430 is connected to the second end portion 302 of the valve cartridge 300, the operation member 430 and the valve cartridge assembly 500 can be located at both sides of the valve housing 200. Thus, the operating member 430 may be arranged side by side with the filter cartridge assembly 500, and the user may operate the operating member 430 up and down. Therefore, the force application direction when the user operates the operation member 430 is more in line with the comfortable force application direction of the human body, the user is more labor-saving, and the human-computer interaction feeling is better.

It should be noted that the directional term "front side" as used herein generally refers to the side closer to the user, while "back side" generally refers to the side further away from the user.

Illustratively, the peripheral wall 303 of the valve core 300 may be further provided with a recess 330. The cartridge water inlet 311 may be provided on the bottom wall of the recess 330. Waterway switching assembly 100 may further include a gasket 410. The material of the gasket 410 may be silicone rubber or rubber. The gasket 410 may be disposed on the recess 330. The sealing gasket 410 may be provided with a through-hole 411. The through-hole 411 may penetrate the sealing gasket 410. The through hole 411 may expose the cartridge water inlet 311. The gasket 410 may abut the inner wall 201 of the valve housing 200. Wherein, when the valve core 300 is located at the water purifying station, the through hole 411 can be aligned with the water inlet 210. Thus, raw water may flow into the cartridge inlet 311 through the through-hole 411. When the valve core 300 is located at the raw water station, the through hole 411 may be staggered with the water inlet 210. Thus, the packing 410 can provide a good sealing effect, thereby preventing raw water from flowing into the cartridge inlet 311 through the through-hole 411.

Illustratively, the peripheral wall 303 of the valve core 300 may be further provided with a limiting arc-shaped groove 340. Similar to the water passing arc-shaped groove 320, the stopper arc-shaped groove 340 may extend in a circumferential direction of the valve cartridge 300. The extending length of the limiting arc-shaped groove 340 can be any length, such as half circumference or 3/4 circumference of the valve core 300 in the circumferential direction. Illustratively, the water passing arc groove 320 and the stopper arc groove 340 may be spaced apart in the axial direction of the valve cartridge 300. Therefore, raw water can be prevented from entering the limiting arc-shaped groove 340, and the phenomenon of water mixing can be avoided. Moreover, the water passing arc-shaped groove 320 and the limiting arc-shaped groove 340 are spaced apart, so that the mechanical strength of the outer peripheral wall 303 of the valve core 300 can be prevented from being reduced.

The valve housing 200 may be provided with a protruding stopper portion 350. The stopper portion 350 may be provided on the valve housing 200 by welding, bonding, molding, or the like. The structure of the position-limiting part 350 is not limited, and includes, but is not limited to, a pin or a bump. For example, in an embodiment where the stop portion 350 includes a plug, the valve housing 200 may be provided with a pin hole 290. The latching pins may be inserted into the pin holes 290 to be disposed on the valve housing 200. The stopper 350 may be inserted into the stopper arc groove 340. Wherein, the limiting part 350 can respectively lean against the two opposite ends of the limiting arc-shaped groove 340 when the valve core 300 is located at the water purification station and the raw water station. Specifically, the limiting arc-shaped groove 340 has opposite first and second ends 341 and 342 along the extending direction thereof. When the valve core 300 is located at the water purifying station, the limit portion 350 may abut against the first end 341 of the limit arc-shaped groove 340. When the valve core 300 is located at the raw water station, the limit portion 350 may abut against the second end 342 of the limit arc-shaped groove 340. So set up, can accurately pivot case 300 to water purification station and raw water station, user's use experience is better.

Illustratively, waterway switching assembly 100 may further include a seal 440. The seal 440 includes, but is not limited to, a gasket or a gasket seal, etc. The packing 440 may be located at least one side of the cartridge water inlet 311 and the water passing arc groove 320 in the axial direction of the cartridge 300. The seal 440 may be captured between the outer peripheral wall 303 of the valve spool 300 and the inner wall 201 of the valve housing 200. Illustratively, the peripheral wall 303 of the valve core 300 may also be provided with an annular groove 360. The annular groove 360 may be located at least one side of the cartridge water inlet 311 and the water passing arc-shaped groove 320 in the axial direction of the cartridge 300. The seal 440 may be captured between the annular groove 360 and the inner wall 201 of the valve housing 200. The sealing member 440 may provide a good sealing effect, thereby preventing water from flowing in the axial direction of the valve cartridge 300.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words 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 interpreted 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 "over … …", "over … …", "over … …", "over", etc., may be used herein to describe the regional positional relationship of one or more components or features to other components or features shown 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 … …" may include both orientations 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 described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to 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 more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (11)

1. A tap water purifier comprises a filter element component and a water path switching component, wherein the water path switching component is provided with a first water outlet, the filter element component comprises a filter shell and a filter element arranged in the filter shell, the filter shell is provided with a filter element water inlet, and the tap water purifier is characterized in that,

a first thread is arranged on the first water outlet; and

the edge of the filter element water inlet extends to the outside of the filter shell to form an annular flange, a second thread is arranged on the annular flange, and the first thread is connected to the second thread.

2. The faucet water purifier of claim 1, wherein the first thread is an external thread provided on an end side of the first water outlet, and the second thread is an internal thread provided on the annular flange.

3. The faucet water purifier of claim 2, wherein the first water outlet is located outside an inner side wall of the filter housing.

4. The faucet water purifier of claim 1, further comprising a sealing member that is clamped in a radial direction between the first water outlet and the annular flange.

5. The faucet water purifier of claim 4,

the first thread is an external thread arranged on the side surface of the end part of the first water outlet, a first annular groove is further arranged on the side surface of the end part of the first water outlet, the first annular groove is far away from the filter element relative to the external thread, and the sealing element is fixed to the first annular groove; or

The second screw thread is for setting up external screw thread on the periphery wall of annular flange, still be provided with the second annular groove on the periphery wall of annular flange, the second annular groove is closer to for this external screw thread the filter core, the sealing member is fixed to the second annular groove.

6. The faucet water purifier of claim 1, wherein the annular flange is integrally disposed on the filter housing.

7. The faucet water purifier of claim 1, wherein the waterway switching assembly comprises a valve housing and a valve core, the first water outlet is disposed on the valve housing, the valve housing is further provided with a water inlet and a second water outlet, the valve core is movably disposed in the valve housing between a raw water station and a water purification station, wherein the water inlet is in communication with the first water outlet when the valve core is in the water purification station and in communication with the second water outlet when the valve core is in the raw water station.

8. The faucet water purifier of claim 7, wherein the valve housing includes a valve element mounting cavity having a cylindrical shape, the valve element is pivotally disposed in the valve element mounting cavity between the raw water station and the water purification station around a central axis of the cylinder, the first water outlet is coaxially connected to an end of the valve element mounting cavity, an inner diameter of the valve element mounting cavity is larger than an inner diameter of the first water outlet, and a wall thickness of the valve element mounting cavity is smaller than a wall thickness of the first water outlet.

9. The faucet water purifier of claim 8,

the end of the valve core is spaced apart from the first water outlet; and/or

The outer diameter of the valve core installation cavity is equal to the outer diameter of the first water outlet.

10. The faucet water purifier of claim 8, wherein the water inlet is located at a top of the valve housing, the second water outlet is located at a bottom of the valve housing, the first water outlet is located at a side of the valve housing, a valve core water inlet and a water passing arc-shaped groove are provided on a peripheral wall of the valve core, the valve core water inlet and the water passing arc-shaped groove are spaced apart in a circumferential direction of the valve core, the water passing arc-shaped groove extends in the circumferential direction, a valve core water outlet is provided on a first end of the valve core, the valve core water inlet and the valve core water outlet communicate via a water flow passage inside the valve core, and the valve core water outlet communicates with the first water outlet,

when the valve core is positioned at the water purifying station, the water inlet is aligned with the water inlet of the valve core, so that the water inlet is communicated with the first water outlet, and the water passing arc-shaped groove is staggered with the water inlet; when the valve core is positioned at the raw water station, the water inlet is staggered with the valve core water inlet, and the water inlet and the second water outlet are aligned with the water passing arc-shaped groove, so that the water inlet is communicated with the second water outlet.

11. The faucet water purifier of claim 7, wherein the water inlet is disposed at a top portion of the valve housing, the second water outlet is disposed at a bottom portion of the valve housing, the first water outlet is disposed at a side of the valve housing, the cartridge water inlet is disposed at a side of the filter housing, the bottom portion of the filter housing is provided with a cartridge water outlet, and the cartridge water inlet and the cartridge water outlet communicate via the cartridge.

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