CN214171393U - Faucet water purifier - Google Patents

Abstract

The utility model discloses a tap water purifier, including the change-over valve, the change-over valve is including being equipped with the water inlet, the casing of raw water delivery port and water purification delivery port, the casing include with the raw water passageway of raw water delivery port intercommunication and with the water purification passageway of water purification delivery port intercommunication, the change-over valve is still including locating slide and the water guide cover in the casing, the water guide sheathes in and is equipped with the guide part and the water guide passageway of upper portion and water inlet intercommunication, the guide part drives the water guide cover along axial displacement through sliding in the slide to make the lower part and the raw water passageway or the water purification passageway intercommunication of water guide passageway. The utility model discloses a switch in different water routes of running water in change-over valve is realized to water guide cover along axial displacement, simple structure, reduction in production and assembly cost, and the slide passes through the guide part to water guide cover carry out the axial ascending spacing simultaneously for water guide cover can only follow axial displacement, prevents that water guide cover from taking place the rotation so that the lower part of water guide passageway can't aim at with raw water passageway or water purification passageway in the casing, guarantees to switch the precision.

Description

Faucet water purifier

Technical Field

The utility model belongs to the water purification field, concretely relates to tap water purifier.

Background

In recent years, water purifiers are popularized due to fire explosion in the water purification market, and especially primary filtration and microfiltration products such as faucet water purifiers are popular among consumers due to the advantages of simple installation, low cost, visual filter effect and the like.

The water outlet mode of the faucet water purifier is divided into two types, namely raw water and purified water, the two water outlet modes are converted by switching a water path through a valve core, and the valve core structure of the faucet water purifier on the market at present is generally divided into the following types: 1. The circular motion is adopted to switch the water paths, so that the internal structure of the tap water purifier is complex, the cost is high, and the compression amount is not well controlled; 2. the structure adopts a spring structure, the structure utilizes the principle of a water stop valve, two to three water sealing structures are needed, and the structure is complex and has more water leakage risks; 3. adopt the marble structure, this structure adopts iron marble and working of plastics to seal, and the time is long easily causes the working of plastics wearing and tearing to leak, and the equipment is troublesome simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a tap water purifier to solve at least one of the above-mentioned problems.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a tap water purifier, includes the change-over valve, the change-over valve is including the casing that is equipped with the water inlet, former water delivery port and water purification delivery port, the casing includes the former water passageway with former water delivery port intercommunication and the water purification passageway with water purification delivery port intercommunication, the change-over valve is still including locating slide and the water guide cover in the casing, be equipped with guide part and upper portion and the water guide passageway of water inlet intercommunication on the water guide cover, guide part drives the water guide cover through sliding in the slide and along axial displacement to make the lower part and the former water passageway or the water purification passageway intercommunication of water guide passageway.

In the faucet water purifier, the water guide sleeve is a sleeve with a closed bottom, a water guide cavity with an upper part communicated with the water inlet is formed in the sleeve, a water guide hole is formed in the side wall of the sleeve, and the water guide hole is communicated with the water guide cavity to form a water guide channel.

In the faucet water purifier, the elastic reset piece is arranged in the water guide cavity, and the upper end and the lower end of the elastic reset piece are respectively abutted against the shell and the sleeve.

In the faucet water purifier, the guide portions are guide rods arranged on two sides of the water guide sleeve, the guide rods extend along the transverse direction of the water guide sleeve, and the guide rods are lapped on the slide way.

In the faucet water purifier, the change-over valve further comprises an operating rod which drives the water guide sleeve to slide along the slide way, and the operating rod penetrates through the shell to be connected with the water guide sleeve.

In the faucet water purifier, the change-over valve further comprises a valve core rotating shaft surrounding the water guide sleeve, the valve core rotating shaft is rotatably connected with the shell, the slide way is obliquely arranged on the valve core rotating shaft, and when the valve core rotating shaft rotates, the guide part slides in the slide way to drive the water guide sleeve to move along the axial direction.

In the faucet water purifier, the slide way comprises a guide inclined plane, a high limit platform and a low limit platform, wherein the high limit platform and the low limit platform are respectively positioned at the upper end and the lower end of the guide inclined plane to limit the guide part.

In the faucet water purifier, the valve core rotating shaft comprises a pushing part surrounding the water guide sleeve and a shifting rod driving the pushing part to rotate, the slideway is arranged on the pushing part, and the shifting rod penetrates through the shell to be connected with the pushing part.

In the faucet water purifier, the shell comprises a valve seat and a valve cover covering the valve seat, the valve seat comprises a lower shell and a valve core, the water purification channel is arranged on the valve core, the valve core covers the lower shell to form a raw water channel, and the lower part of the water guide sleeve penetrates through the valve core to enable the water guide channel to be communicated with the raw water channel or the water purification channel.

In the faucet water purifier, the water inlet is arranged on the valve cover, the valve cover is provided with the limiting groove surrounding the water inlet, the water guide sleeve and the water inlet are coaxially arranged, and the upper part of the water guide sleeve is in sliding connection with the limiting groove.

The utility model has the advantages that:

the utility model provides a tap water purifier, includes the change-over valve, the change-over valve is including the casing that is equipped with the water inlet, former water delivery port and water purification delivery port, the casing includes the former water passageway with former water delivery port intercommunication and the water purification passageway with water purification delivery port intercommunication, the change-over valve is still including locating slide and the water guide cover in the casing, be equipped with guide part and upper portion and the water guide passageway of water inlet intercommunication on the water guide cover, guide part drives the water guide cover through sliding in the slide and along axial displacement to make the lower part and the former water passageway or the water purification passageway intercommunication of water guide passageway. The technical scheme has the following technical effects:

the utility model discloses an along axial displacement's water guide cover intercommunication inlet and raw water delivery port, or intercommunication water inlet and water purification delivery port, realize the switching in different water routes of change-over valve of running water, moreover, the steam generator is simple in structure, reduction in production and assembly cost, slide in the casing passes through the guide part and carries out the axial to water guide cover spacing simultaneously, make water guide cover can only follow axial displacement, prevent that water guide cover from taking place rotatory so that the lower part of water guide passageway can't aim at with raw water passageway or water purification passageway in the casing, guarantee to switch the precision, make the operation of change-over valve more reliable and more stable.

The water guide sleeve is a sleeve with a closed bottom, a water guide cavity with the upper part communicated with the water inlet is formed in the sleeve, a water guide hole is formed in the side wall of the sleeve and communicated with the lower part of the water guide cavity to form a water guide channel, and the water guide hole formed in the side wall of the sleeve is convenient to align to different channels when the height of the water guide sleeve is adjusted.

The water guide cavity is internally provided with an elastic reset piece, the upper end and the lower end of the elastic reset piece are respectively abutted against the shell and the sleeve, the water guide sleeve can reset under the elastic action of the elastic reset piece, the elastic reset piece enables the water guide sleeve to be quickly in place, the switching effect on the water channel is good, and the operation hand feeling of a user is good.

The guide part is for locating the guide bar of water guide sleeve both sides, the guide bar is perpendicular with the center pin of water guide sleeve, the water guide sleeve carries on spacingly through the guide bar of both sides, it is rotatory to prevent that the water guide sleeve from taking place in the casing, both sides are spacing simultaneously, spacing effect is better, the guide part of both sides is through sliding at the slide and drive the water guide sleeve along axial displacement simultaneously, the guide bar symmetry is located water guide sleeve both sides simultaneously the guide bar is perpendicular with the center pin of water guide sleeve, make the water guide sleeve when along axial displacement, the atress of both sides is more even, prevent that water guide sleeve unilateral atress is too big and take place the fracture between the guide bar.

The change-over valve also comprises an operating rod which drives the water guide sleeve to slide along the slide way, the operating rod penetrates through the shell to be connected with the water guide sleeve, and a user can move the operating rod up and down to realize the up and down movement of the water guide sleeve. Simple structure and convenient operation.

The conversion valve also comprises a valve core rotating shaft surrounding the water guide sleeve, the valve core rotating shaft is rotatably connected with the shell, the slide way is obliquely arranged on the valve core rotating shaft, when the valve core rotating shaft rotates, the guide part slides in the slide way to drive the water guide sleeve to move along the axial direction, and the slide way and the guide part convert the rotation of the valve core rotating shaft into the axial movement of the guide sleeve, so that the structure is simple and the volume of the conversion valve is reduced.

The case pivot is including encircleing the promotion portion that leads the water jacket and driving promotion portion pivoted driving lever, and on the promotion portion was located to the slide, the driving lever passed the casing and links to each other with promotion portion, simple structure, and the user operation of being convenient for improves and uses experience.

The water inlet is arranged on the valve cover, a limiting groove surrounding the water inlet is arranged on the valve cover, the water guide sleeve is coaxially arranged with the water inlet, the upper portion of the water guide sleeve is in sliding connection with the limiting groove, when the water guide sleeve moves up and down, the upper portion of the water guide sleeve is always located in the limiting groove, the water guide channel is guaranteed to be communicated with the water inlet all the time, the limiting groove plays a role in guiding and limiting the water guide sleeve, the water guide sleeve can only move axially, radial shaking cannot occur, namely, connection deviation caused by the fact that the water guide channel of the water guide sleeve cannot be aligned with the water inlet is avoided, tap water is guaranteed to enter the water guide channel through the water inlet all the time stably, and connection stability is high.

The features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments:

FIG. 1 is a perspective view of a faucet water purifier according to one embodiment;

FIG. 2 is an exploded view of a faucet water purifier according to one embodiment;

FIG. 3 is a sectional view of a faucet water purifier in a raw water state according to the first embodiment;

FIG. 4 is a schematic view of an internal structure of a faucet water purifier in a raw water discharge state according to a first embodiment;

FIG. 5 is a sectional view of the faucet water purifier in a state of water purification according to the first embodiment;

FIG. 6 is a schematic view of an internal structure of a faucet water purifier in a purified water state according to a first embodiment;

FIG. 7 is a first perspective view of a spindle of the valve cartridge according to the first embodiment;

FIG. 8 is a second perspective view of the valve core shaft according to the first embodiment;

FIG. 9 is a first perspective view of the inner lid according to the first embodiment;

FIG. 10 is a second perspective view of the inner lid of the first embodiment;

FIG. 11 is a schematic view of the connection between the valve core and the lower housing according to the first embodiment;

FIG. 12 is a sectional view of a faucet water purifier according to a second embodiment.

Reference numerals:

the sealing device comprises a 100 valve cover, a 110 inner cover, a 111 mounting groove, a 112 inner limiting ring, a 113 outer limiting ring, a 114 limiting groove, a 115 spring positioning column, a 116 limiting rib, a 120 outer cover, a 130 adapter, a 140 water inlet and a 150 adapter sealing ring;

200 valve seats, 210 lower shells, 211 raw water channels, 212 raw water outlets, 213 notches, 214 blocking ribs, 215 sliding holes, 220 valve cores, 221 bottom plates, 2211 purified water channels, 2212 through holes, 2213 valve cover positioning columns, 222 joints, 2221 purified water outlets, 2222 sealing lips and 223 valve core gaskets;

300 a cavity;

400 water guide sleeves, 410 water guide channels, 411 water guide cavities, 412 water guide holes, 420 elastic reset pieces, 430 guide rods, 440 first sealing grooves, 441 first sealing rings, 450 second sealing grooves, 451 second sealing rings, 460 third sealing grooves and 461 third sealing rings;

500, a valve core rotating shaft, a 510 pushing part, 511 convex ribs, a 520 deflector rod, a 521 guide plate, a 522 handle, a 530 slideway, a 531 guide inclined plane, a 532 high limit platform and a 533 low limit platform;

600 operate the lever, 610 operate the hole.

Detailed Description

The utility model provides a tap water purifier, including the change-over valve, the change-over valve is including being equipped with the water inlet, the casing of raw water delivery port and water purification delivery port, the casing include with the raw water passageway of raw water delivery port intercommunication and with the water purification passageway of water purification delivery port intercommunication, the change-over valve is still including locating slide and the water guide cover in the casing, the water guide sheathes in and is equipped with the guide part and the water guide passageway of upper portion and water inlet intercommunication, the guide part drives the water guide cover along axial displacement through sliding in the slide to make the lower part and the raw water passageway or the water purification passageway intercommunication of water guide passageway. The utility model discloses an along axial displacement's water guide cover intercommunication inlet and raw water delivery port, or intercommunication water inlet and water purification delivery port, realize the switching in different water routes of change-over valve of running water, moreover, the steam generator is simple in structure, reduction in production and assembly cost, slide in the casing passes through the guide part and carries out the axial to water guide cover spacing simultaneously, make water guide cover can only follow axial displacement, prevent that water guide cover from taking place rotatory so that the lower part of water guide passageway can't aim at with raw water passageway or water purification passageway in the casing, guarantee to switch the precision, make the operation of change-over valve more reliable and more stable.

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

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

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment is as follows:

a faucet water purifier comprises a conversion valve used for being connected with a faucet and a filtering assembly arranged on one side of the conversion valve, as shown in figures 1 to 11, the conversion valve comprises a shell, a slide way 530 and a water guide sleeve 400, the slide way 530 and the water guide sleeve 400 are arranged in the shell, a water inlet 140 is arranged at the top of the shell, a raw water outlet 212 is arranged at the bottom of the shell, a purified water outlet 2221 connected with the filtering assembly is arranged on one side of the shell, the shell comprises a raw water channel 211 and a purified water channel 2211 which are different in height, the raw water channel 211 is communicated with the raw water outlet 212, the purified water channel 2211 is communicated with the purified water outlet 2221, a guide part and a water guide channel 410 which are fixed on the water guide sleeve 400 are arranged on the water guide sleeve 400, the upper part of the water guide channel 410 is communicated with the water inlet 140, and the guide part is matched with the slide way 530 and can slide along the slide way 530.

When the guide part is driven to slide in the slide way 530, the guide part drives the water guide sleeve 400 to move along the axial direction of the water guide sleeve 400, the upper end of the water guide channel 410 is always communicated with the water inlet 140, and simultaneously, the height of the lower end of the water guide channel 410 is changed, so that the lower part of the water guide channel 410 is aligned with the raw water channel 211 to be communicated with the raw water channel 211, namely, the tap water inlet 140 discharged by the faucet enters the water guide channel 410 and then enters the raw water channel 211, and the raw water (tap water which is not treated by filtering and the like) in the raw water channel 211 is discharged out of the faucet water purifier from the raw water outlet 212; or, the lower portion of the water guiding channel 410 is aligned with the water purifying channel 2211 to communicate with the water purifying channel 2211, the tap water inlet 140 discharged from the faucet enters the water guiding channel 410, then enters the water purifying channel 2211 and enters the filtering assembly from the purified water outlet 2221, and the filter element in the filtering assembly filters the tap water and then discharges the purified water (the filtered tap water) out of the faucet water purifier. The utility model discloses a water guide sleeve 400 along axial displacement communicates water inlet 140 and raw water delivery port 212, or intercommunication water inlet 140 and water purification delivery port 2221, realize the switching in different water routes of change-over valve of running water, moreover, the steam generator is simple in structure, reduction in production and assembly cost, slide 530 in the casing carries out the axial spacing to water guide sleeve 400 through the guide part simultaneously, make water guide sleeve 400 can only follow axial displacement, prevent that water guide sleeve 400 from taking place the rotation so that the lower part of water guide channel 410 can't aim at with raw water passageway 211 or water purification passageway 2211 in the casing, guarantee to switch the precision, make the operation of change-over valve more reliable and more stable.

In this embodiment, as shown in fig. 2 and 3, the water guide sleeve 400 is a sleeve with a closed bottom, a water guide cavity 411 is formed in the sleeve, the upper portion of the sleeve is slidably connected to the water inlet 140, so that when the water guide sleeve 400 moves in the axial direction, the upper portion of the water guide cavity 411 is always communicated with the water inlet 140, a water guide hole 412 penetrating through the side wall of the sleeve is arranged at the bottom of the side wall of the sleeve, and the water guide hole 412 is communicated with the lower portion of the water guide cavity 411 to form a water guide channel 410. Preferably, the water guide holes 412 are provided in plurality, and the plurality of water guide holes 412 are provided around the sidewall of the sleeve to prevent the single water guide hole 412 from being clogged to affect the water guide of the water guide passage 410.

In order to assist the water guide sleeve 400 to reset along the axial direction, an elastic reset piece 420 is arranged in the water guide cavity 411, the upper end of the elastic reset piece 420 abuts against the shell, the lower end of the elastic reset piece 420 abuts against the bottom of the sleeve, when the water guide sleeve 400 moves along the axial direction under the action of external force, the water guide sleeve 400 can reset under the elastic action of the elastic reset piece 420, the elastic reset piece 420 enables the water guide sleeve 400 to be quickly in place, the switching effect on a water channel is good, and the operation hand feeling of a user is good. It can be understood that, the elastic reset member 420 is not disposed in the water guide cavity 411 in this embodiment, and the water guide sleeve 400 is reset only by the operation of the user, so as to avoid rusting of the elastic reset member 420 due to the long-term washing of the water flow in the water guide cavity 411, which causes the rusted particulate matters to flow out of the raw water outlet 212 or enter the filter element of the filter assembly to affect the filtration.

The guide portion in this embodiment is a protrusion protruding from the outer wall of the water guide sleeve 400, preferably, the guide portion is guide rods 430 disposed at both sides of the water guide sleeve 400, the guide rods 430 extend along the transverse direction of the water guide sleeve 400 and are overlapped on the slide ways 530, the slide ways 530 limit the position of the water guide sleeve 400 through the guide rods 430 at both sides of the water guide sleeve 400, so as to prevent the water guide sleeve 400 from rotating in the housing, and limit both sides simultaneously, which is more effective in limiting, meanwhile, the guide rods 430 at both sides drive the water guide sleeve 400 to move axially by sliding on the slide ways 530, preferably, the guide rods 430 are symmetrically disposed at both sides of the water guide sleeve 400, and the guide rods 430 are perpendicular to the central axis of the water guide sleeve 400, so that when the water guide sleeve 400 moves axially, the force applied at both sides is more uniform, and the single side of the water guide sleeve 400 is prevented from being excessively stressed and being broken between the guide rods 430.

As shown in fig. 2, the housing of this embodiment includes a valve seat 200 and a valve cover 100, the valve cover 100 is covered on the valve seat 200 to form a cavity 300 for accommodating the water guide sleeve 400, the valve seat 200 includes a lower housing 210 and a valve core 220, the valve core 220 is mounted on the lower housing 210 by a fastener such as a screw, a recess 213 is formed on a sidewall of the lower housing 210, the valve core 220 includes a bottom plate 221 and a joint 222 disposed on one side of the bottom plate 221, and the joint 222 penetrates through the sidewall of the lower housing 210 through the recess 213 and is connected to the filter assembly. To enhance the seal between the fitting 222 and the filter assembly, a cartridge gasket 223 may be provided on the fitting 222. The purified water outlet 2221 is disposed on the joint 222, the purified water passage 2211 is disposed on the bottom plate 221 and connected to the purified water outlet 2221, the bottom plate 221 covers the lower housing 210 and forms a raw water passage 211 with the lower housing 210, a through hole 2212 is disposed on the bottom plate 221, the water guide sleeve 400 penetrates the through hole 2212 and slides in the through hole 2212, so that the water guide hole 412 at the lower portion of the water guide sleeve 400 is aligned with the purified water passage 2211 and is communicated with the purified water passage 2211, or extends into the raw water passage 211 and is communicated with the raw water passage 211. As shown in fig. 11, the notch 213 of the lower housing 210 is provided with a rib 214, and the outer ring of the joint 222 is provided with a sealing lip 2222 abutting against the rib 214, so as to improve the sealing property between the joint 222 and the lower housing 210, prevent the tap water in the raw water passage 211 from leaking from the joint between the joint 222 and the lower housing 210, prevent external dust from entering the switching valve, and ensure that the tap water in the switching valve is not polluted.

The water inlet 140 is formed on the valve cover 100 in this embodiment, as shown in fig. 2, the valve cover 100 includes an inner cover 110 and an outer cover 120, and in order to facilitate connection of the valve cover 100 to a faucet, an adapter 130 communicating with the water inlet 140 is further formed on the valve cover 100. A plurality of bonnet positioning columns 2213 are arranged on the bottom plate 221 of the valve core 220, the inner cover 110 is mounted on the bonnet positioning columns 2213 through fasteners such as screws, the outer cover 120 and the inner cover 110 are detachably connected to facilitate the disassembly, maintenance and replacement of the change-over valve, preferably, the outer cover 120 is screwed on the inner cover 110, as shown in fig. 9 and 10, a mounting groove 111 for accommodating the adapter 130 is arranged at the top of the inner cover 110, and after the outer cover 120 is screwed on the inner cover 110, the outer cover 120 and the inner cover 110 clamp the lower part of the adapter 130 together to limit the adapter 130. In order to improve the sealing performance between the adapter 130 and the inner cover 110, an adapter sealing ring 150 may be disposed at the bottom of the adapter 130, and the adapter sealing ring 150 may be compressed between the adapter 130 and the inner cover 110 to prevent water from leaking from the adapter 130 into the water inlet 140. The water inlet 140 is arranged at the central position of the inner cover 110, two annular limiting protrusions are arranged at the bottom of the inner cover 110 facing the water guide sleeve 400, the two annular limiting protrusions are respectively an inner limiting ring 112 and an outer limiting ring 113, the inner limiting ring 112, the outer limiting ring 113 and the water inlet 140 are concentrically arranged, so that a limiting groove 114 surrounding the water inlet 140 is formed between the inner limiting ring 112 and the outer limiting ring 113, the upper part of the water guide sleeve 400 extends into the limiting groove 114 and is in sliding connection with the limiting groove 114, so that the water guide sleeve 400 and the water inlet 140 are coaxially arranged, when the water guide sleeve 400 moves up and down, the upper part of the water guide sleeve 400 is always positioned in the limiting groove 114, the water guide channel 410 is always ensured to be communicated with the water inlet 140, the limiting groove 114 plays a role in guiding and limiting for the water guide sleeve 400, so that the water guide sleeve 400 can only move along the axial direction without shaking in the radial direction, namely, the connection deviation caused by the fact that the water guide channel 410 of the water guide sleeve 400 cannot be aligned with the water inlet 140 is prevented, the tap water is ensured to stably enter the water guide channel 410 through the water inlet 140 all the time, and the connection stability is high. In order to prevent the elastic restoring member 420 from shaking in the water guide cavity 411, preferably, spring positioning columns 115 are disposed at the bottom of the inner cover 110 and the bottom of the water guide sleeve 400, and the two spring positioning columns 115 respectively extend into the upper end and the lower end of the elastic restoring member 420 to position the elastic restoring member 420, so that the elastic restoring member 420 is more stable.

In order to improve the sealing performance of the joint between the water guide sleeve 400 and the inner cover 110, an annular first sealing groove 440 is formed in the top of the outer wall of the water guide sleeve 400, a first sealing ring 441 is arranged in the first sealing groove 440, the first sealing groove 440 axially limits the first sealing ring 441, and when the water guide sleeve 400 vertically slides in the housing, the first sealing ring 441 always abuts against the side wall of the outer limiting ring 113, so that the sealing performance between the water guide sleeve 400 and the inner cover 110 is improved, and tap water is prevented from leaking from the joint between the water guide sleeve 400 and the inner cover 110.

In order to improve the sealing performance between the water guide sleeve 400 and the valve seat 200, a second sealing groove 450 and a third sealing groove 460 are further arranged on the outer wall of the water guide sleeve 400, a second sealing ring 451 is arranged in the second sealing groove 450, a third sealing ring 461 is arranged in the third sealing groove 460, the second sealing groove 450 axially limits the second sealing ring 451, the third sealing groove 460 axially limits the third sealing ring 461, and the second sealing ring 451 and the third sealing ring 461 are respectively positioned at the upper part and the lower part of the water guide hole 412 to prevent tap water from leaking from the connection part of the water guide sleeve 400 and the valve seat 200 when the tap water flows out through the water guide hole 412.

In this embodiment, the switch valve further includes a valve core rotating shaft 500 disposed in the cavity 300 and surrounding the water guide sleeve 400, the valve core rotating shaft 500 is rotatably connected to the valve core 220, the lower portion of the valve core rotating shaft 500 abuts against the valve core 220, the inner cover 110 is provided with a limiting rib 116, the limiting rib 116 abuts against the upper portion of the valve core rotating shaft 500, the valve core rotating shaft 500 is clamped together by the limiting rib 116 and the valve core 220 to axially limit the valve core rotating shaft 500, and the valve core rotating shaft 500 can only rotate along the central axis. Preferably, as shown in fig. 10, the bottom surface of the limiting rib 116 is an arc surface, so that when the limiting rib 116 abuts against the upper portion of the valve core rotating shaft 500, the limiting rib 116 makes line contact with the valve core rotating shaft 500, thereby reducing friction resistance and wear between the limiting rib 116 and the valve core rotating shaft 500 when rotating. As shown in fig. 8, the bottom surface of the valve core rotating shaft 500 is provided with a plurality of ribs 511, the bottom surface of which is a curved surface, and the valve core rotating shaft 500 abuts against the valve core 220 through the curved surface of the ribs 511, so that the valve core rotating shaft 500 and the valve core 220 are in point contact or line contact, and the friction resistance and the abrasion between the valve core rotating shaft 500 and the valve core 220 are reduced. The spool rotating shaft 500 includes a pushing portion 510 surrounding the water guide sleeve 400 and a lever 520 driving the pushing portion 510 to rotate, a sliding hole 215 is formed in the lower housing 210, the lever 520 includes a guide plate 521 located in the cavity 300 and a handle 522 inserted into the guide plate 521 through the sliding hole 215, the guide plate 521 is arc-shaped, the inner side of the guide plate 521 is fixed on the pushing portion 510, and the outer side of the guide plate 521 is attached to the inner wall of the lower housing 210, so that the handle 522 operates the pushing portion 510 to rotate through the guide plate 521.

As shown in fig. 7, the slide ways 530 in this embodiment are obliquely disposed on the pushing portion 510, the two slide ways 530 are disposed on two sides of the pushing portion 510, respectively, the slide ways 530 include a guiding inclined plane 531, a high-limit platform 532, and a low-limit platform 533, and the high-limit platform 532 and the low-limit platform 533 are disposed at upper and lower ends of the guiding inclined plane 531, respectively. The working principle is as follows:

when water (filtered tap water) needs to be purified, as shown in fig. 3 and 4, a user opens the faucet, and then pulls the handle 522 to one side of the sliding hole 215, the handle 522 drives the guide plate 521 to rotate, the guide plate 521 drives the pushing part 510 to rotate, the slide way 530 on the pushing part 510 rotates together with the pushing part 510, the guide rod 430 whose bottom abuts against the slide way 530 slides upwards along the guide inclined plane 531 from the low limit platform 533 to drive the guide sleeve to slide upwards along the limit groove 114 and press the elastic reset piece 420, when the handle 522 slides to the end of the sliding hole 215, the guide rod 430 slides to the high limit platform 532 and abuts against the end of the high limit platform 532, at this time, the valve core rotating shaft 500 stops rotating and the water guide sleeve 400 stops moving upwards, at the same time, the water guide hole 412 moves to the position to communicate with the water guide passage 2211, the tap water flowing out from the faucet enters the water guide passage 410 through the water inlet 140, then enters the purified water passage 2211 through the water guide hole 412, flows into the filter assembly through the purified water outlet 2221, and finally flows out of the faucet water purifier from the bottom of the filter assembly. During the process of flowing out the purified water, the second sealing ring 451 at the upper part of the water guide hole 412 and the third sealing ring 461 at the lower part both abut against the valve core 220, so as to ensure the sealing property at the joint of the water guide hole 412 and the purified water passage 2211 and prevent the tap water from leaking into other spaces of the switching valve.

When raw water (unfiltered tap water) is needed, as shown in fig. 5 and 6, a user opens the faucet, then pulls the handle 522 to the other side of the sliding hole 215, the valve core rotating shaft 500 rotates in the opposite direction, so that the guide rod 430 moves from the high limit platform 532 to the low limit platform 533 along the guide inclined plane 531, so as to drive the guide sleeve to slide downwards along the limit groove 114, at this time, the elastic reset piece 420 pushes the water guide sleeve 400 to slide downwards quickly along the guide inclined plane 531 under the action of elastic force, when the guide rod 430 slides to the low limit platform 533 and abuts against the end of the low limit platform 533, at this time, the valve core rotating shaft 500 stops rotating and the water guide sleeve 400 stops moving downwards, meanwhile, the lower part of the water guide sleeve 400 extends into the raw water channel 211, so that the raw water guide hole 412 is communicated with the raw water channel 211, tap water flowing out of the faucet enters the water guide channel 410 through the water inlet 140, and then enters the raw water channel 211 through the water guide hole 412, finally, the raw water flows out of the conversion valve from a raw water outlet 212 at the bottom of the conversion valve. While the raw water is flowing out, the second sealing ring 451 at the upper portion of the water guide hole 412 abuts against the valve body 220 to seal between the raw water passage 211 and the water inlet passage, thereby preventing the tap water from entering the water purification passage 2211 from the raw water passage 211.

Example two:

the difference between the first embodiment and the second embodiment is that, as shown in fig. 12, an operation hole 610 is vertically formed on the housing, the switching valve further includes an operation rod 600 for driving the water guide sleeve 400 to slide along the slide 530, and the operation rod 600 passes through the operation hole 610 on the housing and is connected to the water guide sleeve 400. The user performs the up and down movement of the water guide sleeve 400 by moving the operation lever 600 up and down along the operation hole 610. Simple structure and convenient operation.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a tap water purifier, includes the change-over valve, the change-over valve is including the casing that is equipped with water inlet, former water outlet and water purification delivery port, the casing include with the former water passageway of former water outlet intercommunication and with the water purification passageway of water purification delivery port intercommunication, its characterized in that: the conversion valve further comprises a slide way and a water guide sleeve which are arranged in the shell, a guide part and a water guide channel of which the upper part is communicated with the water inlet are arranged on the water guide sleeve, and the guide part slides in the slide way to drive the water guide sleeve to move along the axial direction, so that the lower part of the water guide channel is communicated with the raw water channel or the purified water channel.

2. The faucet water purifier as recited in claim 1, wherein: the water guide sleeve is a sleeve with a closed bottom, a water guide cavity with the upper part communicated with the water inlet is formed in the sleeve, a water guide hole is formed in the side wall of the sleeve, and the water guide hole is communicated with the water guide cavity to form the water guide channel.

3. The faucet water purifier as recited in claim 2, wherein: an elastic resetting piece is arranged in the water guide cavity, and the upper end and the lower end of the elastic resetting piece are respectively abutted against the shell and the sleeve.

4. The faucet water purifier as recited in claim 1, wherein: the guide part is the guide bar of locating water guide sleeve both sides, the guide bar is followed water guide sleeve's horizontal extension, just the guide bar is taken on the slide.

5. The faucet water purifier as claimed in any one of claims 1 to 4, wherein: the change-over valve also comprises an operating rod which drives the water guide sleeve to slide along the slide way, and the operating rod penetrates through the shell and is connected with the water guide sleeve.

6. The faucet water purifier as claimed in any one of claims 1 to 4, wherein: the conversion valve also comprises a valve core rotating shaft surrounding the water guide sleeve, the valve core rotating shaft is rotatably connected with the shell, the slide way is obliquely arranged on the valve core rotating shaft, and when the valve core rotating shaft rotates, the guide part slides in the slide way to drive the water guide sleeve to move along the axial direction.

7. The faucet water purifier of claim 6, wherein: the slideway comprises a guide inclined plane, a high limiting platform and a low limiting platform, wherein the high limiting platform and the low limiting platform are respectively positioned at the upper end and the lower end of the guide inclined plane to limit the guide part.

8. The faucet water purifier of claim 6, wherein: the valve core rotating shaft comprises a pushing portion surrounding the water guide sleeve and a shifting lever driving the pushing portion to rotate, the slide way is arranged on the pushing portion, and the shifting lever penetrates through the shell to be connected with the pushing portion.

9. The faucet water purifier as recited in claim 1, wherein: the shell comprises a valve seat and a valve cover covering the valve seat, the valve seat comprises a lower shell and a valve core, the water purification channel is arranged on the valve core, the valve core covers the lower shell to form the raw water channel, and the lower part of the water guide sleeve penetrates through the valve core to enable the water guide channel to be communicated with the raw water channel or the water purification channel.

10. The faucet water purifier of claim 9, wherein: the water inlet is arranged on the valve cover, a limiting groove surrounding the water inlet is arranged on the valve cover, the water guide sleeve is coaxially arranged with the water inlet, and the upper portion of the water guide sleeve is in sliding connection with the limiting groove.

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