CN216045601U

CN216045601U - Change-over valve

Info

Publication number: CN216045601U
Application number: CN202122323722.9U
Authority: CN
Inventors: 朱泽春; 任汪洋; 聂小江
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-15
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a change-over valve which comprises a valve body and a valve core, wherein the change-over valve is provided with a raw water inlet channel for communicating a faucet, a filtering channel for communicating with a water inlet of a water purifier, a raw water outlet channel for discharging raw water and a water purifying channel for discharging purified water, the water purifying channel is used for communicating with a water outlet of the water purifier, and the valve core rotates relative to the valve body so as to enable the raw water inlet channel to be communicated with the raw water outlet channel or the filtering channel. According to the utility model, the water outlet of the faucet is provided with the change-over valve, the valve core of the change-over valve is rotated to change over the water path, so that raw water can be directly discharged out of the faucet through the raw water outlet channel for users to use, or the raw water can be introduced into the water purifier through the filtering channel for filtering, then purified water flows into the change-over valve again and is discharged out of the change-over valve through the water purifying channel for users to use, and two use requirements of the raw water and the purified water of the users can be met only through one faucet.

Description

Change-over valve

Technical Field

The utility model belongs to the field of filtering devices, and particularly relates to a change-over valve.

Background

At present, be equipped with tap on the purifier on the market in order to be used for discharging the water purification, be equipped with tap in the basin and be used for discharging the raw water, but only have a tap mounting hole in the basin, do not have unnecessary tap mounting hole, the user need be in the position of difference and connect raw water and water purification, it is very inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The present invention provides a switching valve to solve at least one of the above problems.

In order to solve the technical problems, the utility model adopts the following technical scheme: a changeover valve comprises a valve body and a valve core, wherein the changeover valve is provided with a raw water inlet channel communicated with a faucet, a filtering channel communicated with a water inlet of a water purifier, a raw water outlet channel used for discharging raw water and a water purifying channel used for discharging purified water, the water purifying channel is communicated with a water outlet of the water purifier, and the valve core rotates relative to the valve body so as to enable the raw water inlet channel to be communicated with the raw water outlet channel or the filtering channel.

In the above-mentioned change-over valve, the case includes the dabber of being connected with the valve body rotation and locates the shutoff piece of the delivery port of raw water inlet channel, is equipped with the water hole of crossing with raw water inlet channel intercommunication on the shutoff piece, and the shutoff piece is installed on the dabber and rotates along with the dabber to make water hole and raw water outlet channel or filtration passageway intercommunication cross.

In above-mentioned change-over valve, the valve body is including enclosing into the section of thick bamboo of intaking of former water inhalant canal, and the bottom of intaking section of thick bamboo is fixed with the bottom plate, and the bottom plate is located the below of shutoff piece, is equipped with the former water through-hole that is used for communicateing former water inhalant canal and former water exhalant canal and is used for communicateing former water inhalant canal and filtering channel's filtration through-hole on the bottom plate, and in the shutoff piece was located the section of thick bamboo of intaking, the dabber ran through the bottom plate and links to each other with the shutoff piece.

In the above-mentioned change-over valve, the case still includes the water guide subassembly that locates into water section of thick bamboo below and link to each other with the dabber, is equipped with the water cavity of crossing in the water guide subassembly, and the top of water guide subassembly is equipped with the raw water mouth of a river, and the bottom of water guide subassembly is equipped with the raw water delivery port, and raw water mouth of a river, raw water delivery port and the water cavity of crossing communicate in order to form raw water outlet channel.

In the above-mentioned change-over valve, the water guide subassembly includes the last casing that is equipped with the raw water mouth of a river and is equipped with the lower casing of raw water delivery port, and lower casing lid is merged and is fixed in the bottom of last casing in order to form the chamber of crossing water, and the lateral part of lower casing is equipped with the operating handle who drives case pivoted.

In the above-mentioned change-over valve, the purified water channel includes the purified water inlet channel that locates in valve body and locates on valve core and purified water outlet channel rotating with valve core, when the raw water inlet channel communicates with filtering the channel, the purified water inlet channel communicates with purified water outlet channel; when the raw water inlet channel is communicated with the raw water outlet channel, the purified water inlet channel is staggered with the purified water outlet channel.

In the above-mentioned change-over valve, the raw water outlet passage and the purified water outlet passage are both provided on the valve core, and the valve core is provided with the purified water pipe enclosing the purified water outlet passage, and the purified water pipe is arranged to penetrate through the raw water outlet passage, so that the purified water outlet passage and the raw water outlet passage are separated from each other.

In the switching valve, the water inlet of the water purifier is communicated with the filtering channel through the pre-filter, and the pre-filter is arranged on one side of the valve body.

In the above-mentioned change-over valve, the prefilter includes casing and filtering component, and filtering component locates in the casing in order to separate the inside of casing into with the former water cavity of filtration passageway intercommunication and with the water purification chamber of the water inlet intercommunication of purifier, the water inlet department in former water cavity is equipped with the check valve, opens when the check valve receives the rivers pressure in the change-over valve to supply water inflow to get into former water cavity.

In the above-mentioned change-over valve, the check valve is the silica gel check valve, and the silica gel check valve includes the support ring and a plurality of valve clacks of installing on the support ring with middle part and filtration passageway intercommunication, and the tip of a plurality of valve clacks offsets in order to be used for sealing the support ring.

The utility model has the beneficial effects that:

a changeover valve comprises a valve body and a valve core, wherein the changeover valve is provided with a raw water inlet channel communicated with a faucet, a filtering channel communicated with a water inlet of a water purifier, a raw water outlet channel used for discharging raw water and a water purifying channel used for discharging purified water, the water purifying channel is communicated with a water outlet of the water purifier, and the valve core rotates relative to the valve body so as to enable the raw water inlet channel to be communicated with the raw water outlet channel or the filtering channel. The technical scheme has the following technical effects:

according to the utility model, the water outlet of the water faucet is provided with the change-over valve, the valve core of the change-over valve is rotated to switch the water path, so that raw water which enters the raw water inlet channel of the change-over valve and is not filtered can be directly discharged out of the water faucet through the raw water outlet channel for a user to use, or raw water can be introduced into the water purifier through the filtering channel to be filtered, and then the filtered purified water flows into the change-over valve again and is discharged out of the change-over valve through the water purifying channel for the user to use.

The valve core comprises a core shaft which is rotationally connected with the valve body and a plugging piece which is arranged at the water outlet of the raw water inlet channel, the plugging piece is provided with a water passing hole which is communicated with the raw water inlet channel, and the plugging piece is arranged on the core shaft and rotates along with the core shaft so as to enable the water passing hole to be communicated with the raw water outlet channel or the filtering channel. The plugging piece can plug the end parts of the raw water outlet channel and the filtering channel, and the mandrel drives the plugging piece to rotate, so that the water passing hole in the plugging piece is aligned with the raw water outlet channel or the filtering channel, the raw water inlet channel is communicated with the raw water outlet channel or the filtering channel, the water channel switching can be realized by a simple structure, and the operation is stable and reliable.

The valve body is including enclosing into raw water inhalant canal's a section of thick bamboo of intaking, the bottom of inhalant canal is fixed with the bottom plate, the bottom plate is located the below of shutoff piece, be equipped with the raw water through-hole that is used for communicateing raw water inhalant canal and raw water exhalant canal on the bottom plate and be used for communicateing raw water inhalant canal and filtration passageway's filtration through-hole, the shutoff piece is located in the inhalant canal, the dabber runs through the bottom plate and links to each other with the shutoff piece, rotation through the shutoff piece, make the water hole cross at one of them punctuality with raw water through-hole and filtration through-hole, the shutoff piece can carry out the shutoff to one of them, prevent that rivers from passing through, the separation effect on water route is better, prevent that the change-over valve from flowing out clean water and raw water simultaneously.

The valve core further comprises a water guide assembly arranged below the water inlet cylinder and connected with the mandrel, a water passing cavity is arranged in the water guide assembly, a raw water passing hole is formed in the top of the water guide assembly, a raw water outlet is formed in the bottom of the water guide assembly, and the raw water passing hole, the raw water outlet and the water passing cavity are communicated to form a raw water outlet channel. By arranging the raw water outlet channel on the water guide piece, when a user rotates the mandrel and the blocking piece through the water guide piece, the mandrel and the water guide assembly can be prevented from blocking the downward flow of the raw water outlet channel, so that the water flow entering the raw water outlet channel can smoothly pass through the raw water outlet channel and flow out of the change-over valve downwards

The water guide assembly comprises an upper shell provided with a raw water passing port and a lower shell provided with a raw water outlet, the lower shell is covered and fixed at the bottom of the upper shell to form a water passing cavity, and an operating handle for driving the valve core to rotate is arranged on the side part of the lower shell or the upper shell. Water that gets into through the water mouth through the raw water can gather in crossing the water intracavity and with the air intensive mixing, the water and the air intensive mixing that flow through let rivers have the effect of foaming, have the joining of air, rivers are softer, prevent simultaneously that rivers from splashing everywhere, reach the effect of bubbler, through setting up operating handle for the user is convenient more laborsaving when rotating the water guide subassembly.

The water purifying channel comprises a water purifying water inlet channel arranged in the valve body and a water purifying water outlet channel arranged on the valve core and rotating along with the valve core, and when the raw water inlet channel is communicated with the filtering channel, the water purifying water inlet channel is communicated with the water purifying water outlet channel; when the raw water inlet channel is communicated with the raw water outlet channel, the purified water inlet channel is staggered with the purified water outlet channel. Through the rotation of case, can realize the disconnection or the intercommunication between water purification inlet channel and the water purification outlet channel, prevent that the change-over valve from flowing out when raw water, remaining water purification in the water purifier flows out simultaneously through water purification outlet channel.

The raw water outlet channel and the purified water outlet channel are both arranged on the valve core, a purified water pipe which is enclosed to form the purified water outlet channel is arranged on the valve core, and the purified water pipe penetrates through the raw water outlet channel so as to separate the purified water outlet channel from the raw water outlet channel. The water flow flowing into the purified water outlet channel is prevented from being polluted by the raw water outlet channel, and the purified water flowing out of the conversion valve is ensured to be clean.

The water inlet of the water purifier is communicated with the filtering channel through a pre-filter, and the pre-filter is arranged on one side of the valve body. Filter through the leading filter intercommunication between the water inlet of passageway and purifier for the raw water that the passageway flowed out gets into earlier and filters for the first time in leading filter with the large granule impurity to in the rivers and filter, then carries out secondary filter in getting into the water purifier again, and the filter effect is good, and can prevent that the large granule impurity in the rivers from getting into the purifier, prolongs the life of purifier. Through installing leading filter in one side of valve body for the user only needs to install change-over valve and can accomplish the fixed of change-over valve on the tap and also accomplished leading filter's fixed when carrying out the erection joint, is convenient for user's installation and use.

The pre-filter comprises a shell and a filter assembly, the filter assembly is arranged in the shell to divide the interior of the shell into a raw water cavity communicated with the filter channel and a purified water cavity communicated with a water inlet of the water purifier, a one-way valve is arranged at the water inlet of the raw water cavity and is opened when the one-way valve receives water flow pressure in the change-over valve, and water flows into the raw water cavity. The one-way valve can conduct water flow in the pre-filter in a one-way mode, so that the water flow can only flow into the raw water channel from the filtering channel, the water in the raw water cavity is prevented from flowing back into the filtering channel, and stable work of the pre-filter and the conversion valve is guaranteed.

The check valve is the silica gel check valve, and the silica gel check valve includes the support ring and a plurality of valve clacks of installing on the support ring with middle part and filtration passageway intercommunication, and the tip of a plurality of valve clacks offsets in order to be used for sealing the support ring. When water in the original water cavity flows to the one-way valve and impacts the valve clack, the valve clack is abutted more tightly, and the sealing effect is good; when the pressure of the water flow flowing out of the filtering channel is larger than the elastic force of the valve clack, the water flow rushes the abutted valve clack to enter the raw water cavity through the one-way valve, the structure is simple, the occupied space is small, the cost is reduced, and meanwhile, the operation is stable and reliable.

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 utility model is further described with reference to the accompanying drawings and the detailed description below:

FIG. 1 is a perspective view of a first switching valve;

FIG. 2 is a second perspective view of the changeover valve;

FIG. 3 is a cross-sectional view of a diverter valve with a pre-filter;

FIG. 4 is an exploded view of the changeover valve;

FIG. 5 is a schematic view of the change-over valve with clean water flowing out;

FIG. 6 is a schematic view of raw water flowing out of the change-over valve;

FIG. 7 is a cutaway schematic view of the valve body;

FIG. 8 is a first perspective view of the upper housing;

FIG. 9 is a second perspective view of the upper housing;

FIG. 10 is a first perspective view of the lower housing;

FIG. 11 is a second perspective view of the lower housing;

FIG. 12 is a perspective view of the valve body;

fig. 13 is a perspective view of the operating handle.

Reference numerals:

100. a pre-filter; 110. a housing; 111. a raw water cavity; 112. a water purifying cavity; 120. a filter assembly; 130. a drain pipe; 140. a one-way valve; 141. a support ring; 142. a valve flap;

200. a valve body; 210. a housing; 220. a water inlet cylinder; 230. a base plate; 231. a raw water through hole; 232. a filtration through hole; 240. a raw water inlet channel; 241. a raw water inlet; 242. a water inlet cavity; 250. a filtration channel; 260. a water inlet pipe; 270. a gasket; 280. an adapter;

300. a valve core; 310. a mandrel; 311. locking the screw; 320. a blocking member; 321. water passing holes; 330. a water guide assembly; 331. an upper housing; 3311. a raw water overflow port; 332. a lower housing; 3321. a raw water outlet; 333. a water purifying pipe; 3331. a pipe body is arranged; 3332. a lower pipe body; 334. a water passing cavity; 335. a raw water outlet channel; 340. an operating handle; 350. a mounting ring; 351. limiting convex ribs; 352. a limiting notch;

410. a purified water inlet channel; 420. a purified water outlet channel.

Detailed Description

The utility model provides a change-over valve which comprises a valve body and a valve core, wherein the change-over valve is provided with a raw water inlet channel for communicating a faucet, a filtering channel for communicating with a water inlet of a water purifier, a raw water outlet channel for discharging raw water and a water purifying channel for discharging purified water, the water purifying channel is used for communicating with a water outlet of the water purifier, and the valve core rotates relative to the valve body so as to enable the raw water inlet channel to be communicated with the raw water outlet channel or the filtering channel. According to the utility model, the water outlet of the water faucet is provided with the change-over valve, the valve core of the change-over valve is rotated to switch the water path, so that raw water which enters the raw water inlet channel of the change-over valve and is not filtered can be directly discharged out of the water faucet through the raw water outlet channel for a user to use, or raw water can be introduced into the water purifier through the filtering channel to be filtered, and then the filtered purified water flows into the change-over valve again and is discharged out of the change-over valve through the water purifying channel for the user to use.

The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort 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 and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered 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," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example (b):

a change-over valve, as shown in fig. 1 to 13, comprises a valve body 200 for connecting a water tap and a valve core 300 rotatably connected to the valve body 200, wherein the change-over valve comprises a raw water inlet channel 240, a raw water outlet channel 335, a filtering channel 250 and a water purifying channel, the water inlet end of the raw water inlet channel 240 is used for connecting the water outlet of the water tap, the water outlet end of the raw water outlet channel 335 is communicated with the outside, the water outlet end of the filtering channel 250 is communicated with the water inlet of the water purifier, the water inlet end of the water purifying channel is communicated with the water outlet of the water purifier, the water outlet end of the water purifying channel is communicated with the outside, the valve core 300 can rotate relative to the valve body 200, so that the water outlet end of the raw water inlet channel 240 is aligned with the water inlet end of the raw water outlet channel 335 or the water inlet end of the filtering channel 250, and further the raw water inlet channel 240 is communicated with the raw water outlet channel 335 or the filtering channel 250.

When the raw water inlet channel 240 is communicated with the raw water outlet channel 335, raw water (unfiltered tap water) flowing out of the faucet enters the raw water outlet channel 335 through the raw water inlet channel 240, and then directly exits the switch valve through the water outlet end of the raw water outlet channel 335 for use by a user. When the raw water inlet channel 240 is communicated with the filtering channel 250, raw water (unfiltered tap water) flowing out of the faucet enters the filtering channel 250 through the raw water inlet channel 240, then enters the water purifier through a water inlet of the water purifier for filtering, filtered purified water (filtered tap water) enters the water purifying channel through a water outlet of the water purifier, and then is discharged out of the change-over valve through a water outlet end of the water purifying channel for a user to use.

According to the utility model, the water outlet of the water faucet is provided with the change-over valve, the valve core 300 of the change-over valve is rotated to change over the water path, so that raw water which enters the raw water inlet channel 240 of the change-over valve and is not filtered can be directly discharged out of the water faucet through the raw water outlet channel 335 for a user to use, or raw water can be introduced into the water purifier through the filter channel 250 for filtering, and then filtered purified water flows into the change-over valve again and is discharged out of the change-over valve through the purified water channel for the user to use.

In this embodiment, the valve body 200 includes a housing 210 and a water inlet barrel 220 installed on the housing 210, a raw water inlet 241 is formed at an upper portion of the water inlet barrel 220, a bottom plate 230 is fixed at a bottom of the water inlet barrel 220, the water inlet barrel 220 encloses a water inlet chamber 242 located above the bottom plate 230, the raw water inlet 241 is communicated with the water inlet chamber 242 to form a raw water inlet channel 240, and an upper portion of the water inlet chamber 242 is communicated with a faucet through the raw water inlet 241. A raw water through hole 231 and a filtering through hole 232 are formed in the bottom plate 230, the raw water through hole 231 is used for communicating the raw water inlet channel 240 and the raw water outlet channel 335, and the filtering through hole 232 is used for communicating the raw water inlet channel 240 and the filtering channel 250. The filter passage 250 is formed by an inner opening of the valve body 200 positioned below the bottom plate 230, a water inlet end of the filter passage 250 is communicated with the raw water through hole 231, and a water outlet end of the filter passage 250 is disposed at a side portion of the valve body 200. Preferably, the bottom plate 230 includes a base plate fixed to the bottom of the water inlet pipe 220 and a sealing gasket 270 disposed on the upper portion of the base plate, the raw water through hole 231 and the filtering through hole 232 are disposed to penetrate the sealing gasket 270 and the base plate, the sealing performance between the sealing gasket 270 and the blocking member 320 is better, and the sealing gasket 270 is inserted into the base plate to prevent the sealing gasket 270 from rotating relative to the base plate. The top of the valve body 200 is provided with an adapter 280, and the valve body 200 is mounted on the water faucet through the adapter 280.

As shown in fig. 3, in the present embodiment, the valve member 300 includes a stem 310 rotatably connected to the valve body 200, a blocking member 320 disposed in the inlet chamber 242, and a water guide assembly 330 disposed below the bottom plate 230. The mandrel 310 is arranged on the bottom plate 230 in a penetrating manner and can rotate relative to the bottom plate 230, the upper end of the mandrel 310 is connected with the blocking piece 320 positioned above the bottom plate 230 and can drive the blocking piece 320 to rotate, the lower end of the mandrel 310 is connected with the water guide assembly 330 and can drive the water guide assembly 330 to rotate, namely, the water guide assembly 330, the mandrel 310 and the blocking piece 320 can rotate together. The blocking member 320 is provided with a water passing hole 321 communicated with the water inlet chamber 242, and the water passing hole 321 may be communicated with the raw water through hole 231 or the filtering through hole 232 as the blocking member 320 rotates. The upper end of the mandrel 310 can be inserted into the center of the plugging member 320 through a spline and the like and drive the plugging member 320 to rotate, a convex block which is abutted against the top surface of the plugging member 320 is arranged at the upper end of the mandrel 310, and the lower end of the mandrel 310 is connected with the water guide assembly 330 through a locking screw 311, so that the mandrel 310, the plugging member 320 and the water guide member are prevented from moving relatively in the axial direction.

In this embodiment, a water passing cavity 334 is disposed in the water guide assembly 330, a raw water passing port 3311 is disposed at the top of the water guide assembly 330, a raw water outlet 3321 is disposed at the bottom of the water guide assembly 330, and the raw water passing port 3311, the water passing cavity 334 and the raw water outlet 3321 are sequentially communicated to form a raw water outlet channel 335. By arranging the raw water outlet channel 335 on the water guide, when the user rotates the spindle 310 and the blocking piece 320 through the water guide, the spindle 310 and the water guide assembly 330 can be prevented from blocking the downward flow of the raw water outlet channel 335, so that the water flow entering the raw water outlet channel 335 can smoothly pass through the raw water outlet channel 335 and flow out of the conversion valve, by arranging the raw water outlet channel 335 such that the inner diameter of the water passing cavity 334 in the middle is larger than that of the upper raw water passing port 3311, the water entering the water passing cavity 334 through the raw water passing port 3311 can be gathered in the water passing cavity 334 and fully mixed with the air, the flowing water and the air are fully mixed, the water flow has a foaming effect, the air is added, the water flow is softer, and the water flow is prevented from splashing around, thereby achieving the effect of the bubbler.

As shown in fig. 8 to 11, in the present embodiment, the water guide assembly 330 includes an upper housing 331 provided with a raw water outlet 3311 and a lower housing 332 provided with a raw water outlet 3321, the lower housing 332 covers and is fixed at the bottom of the upper housing 331 to form a water passing cavity 334, the upper housing 331 and the lower housing 332 which are separately provided are more convenient for the production and processing of the water guide assembly 330, and preferably, the upper housing 331 and the lower housing 332 are detachably connected by a snap-fit manner, so as to be convenient for installation and detachment. In order to make the user more convenient and labor-saving when rotating the water guide assembly 330, in this embodiment, an operating handle 340 for driving the valve element 300 to rotate is further disposed at a side portion of the upper casing 331 or the lower casing 332, the operating handle 340 may be integrated with the upper casing 331/the lower casing 332 or may be separately disposed from the upper casing 331/the lower casing 332, preferably, a mounting ring 350 is disposed at an end portion of the operating handle 340, the mounting ring 350 is sleeved at an outer peripheral side of the upper casing 331/the lower casing 332, the mounting ring 350 is connected with an outer peripheral wall of the upper casing 331/the lower casing 332 through a snap fit, so as to prevent relative rotation between the mounting ring 350 and the upper casing 331/the lower casing 332, ensure a driving effect of the operating handle 340 on the upper casing 331/the lower casing 332, and facilitate mounting and positioning between the upper casing 331/the lower casing 332 and the mounting ring 350, a limiting protruding rib 351 is further vertically disposed at a bottom portion of an inner wall of the mounting ring 350, the bottom of the upper shell 331/the lower shell 332 is provided with a limiting notch 352 matched with the limiting convex rib 351, and when the installation is carried out, the limiting notch 352 and the limiting convex rib 351 are aligned to complete the installation and positioning between the two, so that the assembly efficiency and the assembly precision are improved.

In this embodiment, the water purifying channel includes a water inlet channel 410 disposed on the valve body 200 and a water outlet channel 420 disposed on the valve core 300, and when the valve core 300 rotates, the water outlet channel 420 rotates together with the valve core 300 to disconnect or connect the water inlet channel 410 and the water outlet channel 420. The water guide assembly 330 is provided with a water purifying pipe 333 which is enclosed to form a purified water outlet channel 420, and the water purifying pipe 333 penetrates through the upper shell 331, the water passing cavity 334 and the lower shell 332 of the water guide assembly 330, so that the raw water outlet channel 335 and the purified water outlet channel 420 are separated from each other, the water flowing into the purified water outlet channel 420 is prevented from being polluted by the raw water outlet channel 335, and the purified water flowing out from the change-over valve is ensured to be clean. Preferably, the water purifying pipe 333 includes an upper body 3331 provided on the upper case 331 and a lower body 3332 provided on the lower case 332, and the upper body 3331 and the lower body 3332 are aligned and hermetically coupled when the upper case 331 and the lower case 332 are in an assembled state, thereby facilitating installation while preventing water leakage at the coupling.

The user can rotate the water guide assembly 330 according to the use requirement to realize the switching of the water path, and the working process of the switching valve is as follows:

as shown in fig. 6, when a user needs to use raw water without filtration, the operation handle 340 is rotated, the operation handle 340 drives the water guide assembly 330 to rotate, so that the raw water passing opening 3311 at the top of the water guide assembly 330 is aligned with the raw water through hole 231 on the bottom plate 230, the purified water outlet channel 420 at the top of the water guide assembly 330 is staggered from the purified water inlet channel 410 and is sealed by the bottom plate 230, when the water guide assembly 330 rotates, the mandrel 310 drives the plugging member 320 to rotate until the water passing hole 321 is communicated with the raw water through hole 231, thereby achieving the effect of communicating the raw water inlet channel 240 with the raw water outlet channel 335. When the faucet is turned on, the water flowing into the raw water inlet channel 240 sequentially flows through the raw water through hole 231 and the raw water outlet 3311 into the water passing cavity 334 to be foamed, and finally flows out of the switching valve from the raw water outlet 3321 for the user to use.

As shown in fig. 5, when a user needs to use filtered purified water, the operation handle 340 is rotated, the operation handle 340 drives the water guide assembly 330 to rotate, so that the raw water passing opening 3311 at the top of the water guide assembly 330 is sealed by the bottom plate 230, so that the raw water inlet channel 240 is disconnected from the raw water outlet channel 335, the purified water outlet channel 420 at the top of the water guide assembly 330 is aligned with and communicated with the purified water inlet channel 410, and when the water guide assembly 330 rotates, the mandrel 310 drives the plugging member 320 to rotate until the water passing hole 321 is communicated with the filtering through hole 232, thereby achieving the effect of communicating the raw water inlet channel 240 with the filtering channel 250. When the faucet is turned on, the water flowing into the raw water inlet channel 240 enters the filtering channel 250 through the filtering through hole 232, and then enters the water purifier for filtering, and the filtered purified water enters the purified water inlet channel 410 and flows out of the switching valve through the purified water outlet channel 420 for the user to use.

The filtering channel 250 in this embodiment may be directly connected to the water inlet of the water purifier, or the pre-filter 100 may be disposed between the filtering channel 250 and the water inlet of the water purifier. Preferably, be equipped with leading filter 100 between the water inlet of filtration passageway 250 and purifier, leading filter 100 installs in one side of valve body 200 in order to fix, communicate through leading filter 100 between the water inlet of filtration passageway 250 and purifier, make the raw water that filtration passageway 250 flows out earlier get into leading filter 100 in carry out primary filtration in order to filter the large granule impurity in the rivers, then get into the purifier and carry out secondary filter, the filter effect is good, and can prevent that the large granule impurity in the rivers from getting into the purifier, the life of extension purifier. By installing and fixing the prefilter 100 on one side of the valve body 200, when a user performs installation and connection, the user only needs to install the conversion valve on the water tap to fix the conversion valve and also fix the prefilter 100, so that the installation and the use of the user are facilitated.

The prefilter 100 and the conversion valve can be of an integral structure or can be detachably connected, preferably, the prefilter 100 is rotatably buckled on the side part of the conversion valve, the sealing performance between the prefilter 100 and the conversion valve is ensured, and meanwhile, when part of the structure is damaged, the prefilter 100 or the conversion valve can be independently replaced, so that the maintenance and replacement cost is reduced.

In this embodiment, the prefilter 100 includes a housing 110 and a filter assembly 120, the filter assembly 120 is disposed in the housing 110 to separate the interior of the housing 110 into a raw water chamber 111 and a purified water chamber 112, the raw water chamber 111 is communicated with the filter channel 250, the purified water chamber 112 is communicated with a water inlet of the water purifier, a drain pipe 130 for connecting the water inlet of the water purifier is disposed on the prefilter 100, a water inlet pipe 260 for connecting a water outlet of the water purifier is disposed on the switch valve, the drain pipe 130 is communicated with the purified water chamber 112, and the water inlet pipe 260 is communicated with the purified water channel. The check valve 140 is disposed at the water inlet of the raw water chamber 111, the check valve 140 is in a normally closed state to prevent water in the raw water chamber 111 from flowing back into the filtering channel 250, when the water flowing out of the filtering channel 250 of the switching valve reaches the water inlet of the raw water chamber 111, the check valve 140 in the normally closed state is opened under the pressure of the water flowing in the filtering channel 250, so that the water flows into the raw water chamber 111 through the check valve 140, then the water in the raw water chamber 111 enters the purified water chamber 112 after being filtered by the filtering assembly 120, finally the water flows out of the pre-filter 100 through the drain pipe 130 and enters the water purifier, the check valve 140 can conduct the water flowing in the pre-filter 100 in a single direction, so that the water flows only from the filtering channel 250 into the filtering channel, and the water in the raw water chamber 111 is prevented from flowing back into the filtering channel 250, thereby ensuring stable operation of the pre-filter 100 and the switching valve.

In this embodiment, it is preferable that the check valve 140 is a silicone check valve 140, the silicone check valve 140 includes a support ring 141 communicated with the middle of the support ring 250 and a plurality of valve flaps 142 having ends mounted on the support ring 141, the opposite side walls of the ends of the plurality of valve flaps 142 are abutted under the action of elastic force to seal the support ring 141, when water in the raw water cavity 111 flows to the check valve 140 and impacts the valve flaps 142, the abutment of the valve flaps 142 is tighter, and the sealing effect is good; when the pressure of the water flowing out of the filtering channel 250 is greater than the elastic force of the valve flap 142, the water pushes the valve flap 142 away to enter the raw water cavity 111 through the check valve 140, the structure is simple, the occupied space is small, the cost is reduced, and the operation is stable and reliable.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A change-over valve, includes valve body and case, its characterized in that: the water purifying valve is characterized in that the conversion valve is provided with a raw water inlet channel used for being communicated with a faucet, a filtering channel used for being communicated with a water inlet of a water purifier, a raw water outlet channel used for discharging raw water and a water purifying channel used for discharging purified water, the water purifying channel is used for being communicated with a water outlet of the water purifier, and the valve core rotates relative to the valve body so that the raw water inlet channel is communicated with the raw water outlet channel or the filtering channel.

2. A changeover valve as claimed in claim 1, wherein: the case include with the valve body rotates the dabber of connecting and locates the shutoff piece of the delivery port of raw water inlet channel, be equipped with on the shutoff piece with the water hole of crossing of raw water inlet channel intercommunication, the shutoff piece is installed the dabber rotates along with the dabber to make cross the water hole with raw water outlet channel or filtering channel intercommunication.

3. A changeover valve as claimed in claim 2, wherein: the valve body is including enclosing into raw water inhalant canal's a section of thick bamboo of intaking, the bottom of a section of thick bamboo of intaking is fixed with the bottom plate, the bottom plate is located the below of shutoff piece, be equipped with on the bottom plate and be used for the intercommunication raw water inhalant canal with raw water exhalant canal's raw water through-hole and be used for the intercommunication raw water inhalant canal with the filtration through-hole of filtration passageway, the shutoff piece is located in the inhalant canal, the dabber runs through the bottom plate and with the shutoff piece links to each other.

4. A changeover valve as claimed in claim 3, wherein: the valve core further comprises a water guide assembly which is arranged below the water inlet cylinder and connected with the mandrel, a water passing cavity is arranged in the water guide assembly, a raw water passing port is arranged at the top of the water guide assembly, a raw water outlet is arranged at the bottom of the water guide assembly, and the raw water passing port, the raw water outlet and the water passing cavity are communicated to form a raw water outlet channel.

5. A changeover valve as claimed in claim 4, wherein: the water guide assembly comprises an upper shell provided with the raw water outlet and a lower shell provided with the raw water outlet, the lower shell is covered and fixed at the bottom of the upper shell to form a water passing cavity, and an operating handle for driving the valve core to rotate is arranged on the side part of the lower shell or the upper shell.

6. A changeover valve as claimed in claim 1, wherein: the water purifying channel comprises a water purifying water inlet channel arranged in the valve body and a water purifying water outlet channel arranged on the valve core and rotating along with the valve core, and when the raw water inlet channel is communicated with the filtering channel, the water purifying water inlet channel is communicated with the water purifying water outlet channel; when the raw water inlet channel is communicated with the raw water outlet channel, the purified water inlet channel is staggered with the purified water outlet channel.

7. A changeover valve as claimed in claim 6, wherein: the raw water outlet channel and the purified water outlet channel are both arranged on the valve core, a purified water pipe which encloses the purified water outlet channel is arranged on the valve core, and the purified water pipe penetrates through the raw water outlet channel so as to separate the purified water outlet channel from the raw water outlet channel.

8. A changeover valve as claimed in any one of claims 1 to 7, wherein: the water inlet of the water purifier is communicated with the filtering channel through a pre-filter, and the pre-filter is installed on one side of the valve body.

9. A changeover valve as claimed in claim 8, wherein: leading filter includes casing and filtering component, filtering component locates in the casing with the inside partition of casing become with the former water cavity of filtration passageway intercommunication and with the water purification chamber of the water inlet intercommunication of purifier, the water inlet department in former water cavity is equipped with the check valve, the check valve receives open during rivers pressure in the change-over valve to the water supply flows into former water cavity.

10. A changeover valve as claimed in claim 9, wherein: the check valve is the silica gel check valve, the silica gel check valve include with the middle part with the support ring and the valve clack of a plurality of installation on the support ring of filtration passageway intercommunication are a plurality of the tip of valve clack offsets in order to be used for sealing the support ring.