CN213853445U

CN213853445U - Control valve of tap water purifier

Info

Publication number: CN213853445U
Application number: CN202021925735.2U
Authority: CN
Inventors: 朱泽春; 张德知; 吴庆沛
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2020-09-05
Filing date: 2020-09-05
Publication date: 2021-08-03
Anticipated expiration: 2030-09-05

Abstract

The utility model discloses a control valve of tap water purifier belongs to tap water purifier technical field, has solved the technical problem that the water route conversion is complicated and the water spot is many among the prior art in the control valve, the utility model discloses a control valve, including the casing that is equipped with water inlet, raw water export and water purification export, be equipped with in the casing with the raw water passageway of raw water export intercommunication and with the water purification passageway of water purification export intercommunication, still rotate in the casing and install hollow rotating shaft, hollow rotating shaft with the coaxial setting of water inlet, hollow rotating shaft upper end with the water inlet intercommunication, the drive hollow rotating shaft round the axis of water inlet rotates, so that the hollow rotating shaft lower extreme with raw water passageway or water purification passageway intercommunication.

Description

Control valve of tap water purifier

[ technical field ] A method for producing a semiconductor device

The utility model relates to a leading water purifier technical field especially relates to a control valve of leading water purifier.

[ background of the invention ]

The faucet water purifier is a miniature water purifier directly mounted and suspended on a household faucet, and generally includes a single-tap water purifier, tap water (raw water) and a purified water switching-type faucet water purifier. The faucet water purifier is very popular with consumers abroad because of the advantages of small size, no space occupation, instant effect of improving water quality, simple and convenient installation and maintenance, and the like. The tap water purifier comprises a control valve and a filter element assembly connected with the control valve, wherein the control valve comprises a shell provided with a water inlet, a raw water outlet and a purified water outlet, the purified water outlet is connected with the filter element assembly, a hollow rotating shaft arranged perpendicular to the axis of the water inlet is rotatably installed in the shell, the hollow rotating shaft is provided with a water inlet hole and a water outlet hole which are radially arranged, the water inlet hole is communicated with the water inlet, the water outlet hole and the raw water outlet can be staggered by rotating the hollow shaft, and meanwhile, the inner end of the hollow rotating shaft is communicated with the purified water outlet; or the hollow shaft is rotated to align the water outlet with the raw water outlet, and the inner end of the hollow rotating shaft is disconnected with the purified water outlet, so that the tap water purifier can provide purified water or raw water. Because the conventional hollow rotating shaft needs to be provided with a plurality of through holes on the peripheral side to realize the conversion of the water channel, the structure is more complex, and the processing cost is higher; in addition, because the through-hole sets up more, consequently, it is more to seal water spot, can lead to the material cost of sealing member higher and the packaging efficiency lower, and then has promoted manufacturing cost greatly.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome prior art not enough and provide a control valve of tap water purifier, can simplify the water route in the casing, reduce the water seal point, reduce manufacturing cost from this.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a control valve of tap water purifier, is including the casing that is equipped with water inlet, raw water export and water purification export, be equipped with in the casing with the raw water passageway of raw water export intercommunication and with the water purification passageway of water purification export intercommunication, still rotate in the casing and install hollow rotating shaft, hollow rotating shaft with the coaxial setting of water inlet, hollow rotating shaft upper end with water inlet intercommunication, the drive hollow rotating shaft round the axis of water inlet rotates, so that hollow rotating shaft lower extreme with raw water passageway or water purification passageway intercommunication.

Furthermore, a movable sheet which synchronously rotates is packaged at the bottom of the hollow rotating shaft, and a runner port communicated with the lower end of the hollow rotating shaft is arranged on the movable sheet and drives the hollow rotating shaft to rotate, so that the runner port is communicated with the raw water channel or the purified water channel.

Furthermore, one of the hollow rotating shaft and the movable sheet is provided with a first positioning hole, the first positioning hole is deviated from the axis of the hollow rotating shaft, and the other one of the hollow rotating shaft and the movable sheet is provided with a first positioning rib which is in splicing fit with the first positioning hole.

Furthermore, a lower shaft sleeve sleeved outside the hollow rotating shaft is fixed in the shell, a fixing plate matched with the movable plate in a mirror surface mode is fixed in the lower shaft sleeve, a first through hole communicated with the water purifying channel and a second through hole communicated with the raw water channel are formed in the fixing plate, the hollow rotating shaft is driven to rotate, and the runner port is communicated with the first through hole or the second through hole.

Furthermore, a supporting platform which extends radially inwards is arranged in the lower shaft sleeve, a second positioning hole is formed in one of the supporting platform and the fixing piece, and a second positioning rib which is in plug-in fit with the second positioning hole is formed in the other supporting platform and the fixing piece.

Furthermore, an upper valve sleeve is further fixed in the shell and comprises an upper shaft sleeve which is sleeved on the outer side of the hollow rotating shaft in a sealing mode, a first limiting plate which is arranged at the top of the hollow rotating shaft in a pressing mode is arranged on the upper shaft sleeve, and a water passing hole which is communicated with the water inlet and the hollow rotating shaft is formed in the first limiting plate.

Furthermore, the top of the hollow rotating shaft is provided with a fillet.

Further, the control valve is still including being used for the drive hollow shaft pivoted handle, be equipped with on the casing and dodge the hole, the handle runs through dodge the hole setting.

Further, be fixed with in the casing and be located the second limiting plate in the hollow rotating shaft outside, be equipped with former water gear groove and water purification gear groove on the second limiting plate, install the elasticity round pin in the hollow rotating shaft, the drive the hollow rotating shaft rotates, so that the elasticity round pin is in switch between former water gear groove and the water purification gear groove, the elasticity round pin inserts during former water gear groove, hollow rotating shaft lower extreme with raw water passageway intercommunication, the elasticity round pin inserts during water purification gear groove, hollow rotating shaft lower extreme with water purification passageway intercommunication.

Furthermore, the hollow rotating shaft is provided with a radially extending mounting hole, the elastic pin comprises a positioning pin and an elastic part sleeved on the positioning pin, a positioning shaft shoulder is arranged on the positioning pin, and the elastic part is clamped between the bottom wall of the mounting hole and the positioning shaft shoulder.

The utility model has the advantages that:

the water path through hollow rotating shaft of the utility model is axially arranged, and can realize the communication between the water inlet and the raw water channel or the water purification channel by driving the hollow rotating shaft to rotate around the axis of the water inlet, without arranging other through holes on the periphery of the hollow rotating shaft for the conversion of the water path, thereby simplifying the structure of the hollow rotating shaft and reducing the processing cost of the hollow rotating shaft; additionally, because the utility model provides a hollow rotating shaft both ends are for intaking end and play water end, consequently only need set up at hollow rotating shaft's both ends seal the water spot can, reduced the quantity of sealing the water spot and the use quantity of sealing member from this, and then promoted the packaging efficiency of control valve, reduced manufacturing cost.

The bottom of the hollow rotating shaft is sealed with a movable sheet which synchronously rotates, the movable sheet is provided with a runner port communicated with the lower end of the hollow rotating shaft, and the hollow rotating shaft is driven to rotate so as to communicate the runner port with a raw water channel or a purified water channel. By the design, the structure of the hollow rotating shaft can be further simplified, and the hollow rotating shaft is convenient to process.

One of the hollow rotating shaft and the movable sheet is provided with a first positioning hole, the first positioning hole deviates from the axis of the hollow rotating shaft, and the other one is provided with a first positioning rib which is in splicing fit with the first positioning hole. By the design, the movable sheet can synchronously rotate along with the hollow rotating shaft, and the assembly is simple, so that the movable sheet is convenient to replace in the later period.

The shell is internally fixed with a lower shaft sleeve sleeved outside the hollow rotating shaft, the lower shaft sleeve is internally fixed with a fixed plate matched with the movable plate through a mirror surface, the fixed plate is provided with a first through hole communicated with the water purifying channel and a second through hole communicated with the raw water channel, and the hollow rotating shaft is driven to rotate so as to ensure that the runner port is communicated with the first through hole or the second through hole. The lower shaft sleeve is designed, so that the coaxiality of the hollow rotating shaft and the water inlet can be ensured, and the hollow rotating shaft is prevented from rotating and deviating; in addition, the mirror surface laminating of activity piece and stationary blade can realize sealing water, need not to design the sealing member between the two, and in addition, the scheme of mirror surface laminating also can further reduce the frictional force that receives when hollow rotating shaft is rotatory, and then makes user's operation more laborsaving.

The lower shaft sleeve is internally provided with a supporting platform which extends inwards in the radial direction, one of the supporting platform and the fixing piece is provided with a second positioning hole, and the other one of the supporting platform and the fixing piece is provided with a second positioning rib which is in splicing fit with the second positioning hole. So design can not only realize the fixed of stationary blade, and the equipment is also comparatively simple moreover, does benefit to the change of later stage stationary blade.

An upper valve sleeve is further fixed in the shell and comprises an upper shaft sleeve which is hermetically sleeved on the outer side of the hollow rotating shaft, a first limiting plate which is pressed on the top of the hollow rotating shaft is arranged on the upper shaft sleeve, and a water passing hole which is communicated with the water inlet and the hollow rotating shaft is formed in the first limiting plate. The upper shaft sleeve can ensure the coaxiality of the hollow rotating shaft and the water inlet, and the hollow rotating shaft is prevented from rotating and deviating; and first limiting plate can go on spacing to hollow rotating shaft, avoids hollow rotating shaft upwards drunkenness, has promoted the firm nature of installation of hollow rotating shaft from this.

The top of the hollow rotating shaft is provided with a fillet. By the design, the contact area between the top of the hollow rotating shaft and the first limiting plate can be reduced, so that the friction force received by the hollow rotating shaft during rotation is reduced, and the user operation is more labor-saving.

The control valve also comprises a handle used for driving the hollow rotating shaft to rotate, the shell is provided with an avoiding hole, and the handle penetrates through the avoiding hole. By the design, the hollow rotating shaft can be driven to rotate by stirring the handle, and the structure is simple and compact.

The casing internal fixation has the second limiting plate that is located the hollow rotating shaft outside, is equipped with former water gear groove and water purification gear groove on the second limiting plate, installs the elastic pin on the hollow rotating shaft, and the hollow rotating shaft of drive rotates to make the elastic pin switch between former water gear groove and water purification gear groove, when the elastic pin inserts former water gear groove, hollow rotating shaft lower extreme and former water passageway intercommunication, when the elastic pin inserts water purification gear groove, hollow rotating shaft lower extreme and water purification passageway intercommunication. By the design, the hollow rotating shaft can be circumferentially positioned to ensure that the lower end of the hollow rotating shaft is communicated with the water purification channel or the raw water channel; in addition, can produce the click because of the striking when the elastic pin card inserts former water gear groove or water purification gear groove to this reminds the rotation of user's hollow pivot to the position, has promoted user and has used experience.

The hollow rotating shaft is provided with a radially extending mounting hole, the elastic pin comprises a positioning pin and an elastic piece sleeved on the positioning pin, a positioning shaft shoulder is arranged on the positioning pin, and the elastic piece is clamped between the bottom wall of the mounting hole and the positioning shaft shoulder. When the positioning pin is dislocated with the raw water gear groove or the water purification gear groove, the elastic part is compressed, and when the hollow rotating shaft is rotated to align the positioning pin with the raw water gear groove or the water purification gear groove, the elastic part drives the positioning pin to extend out and be inserted into the raw water gear groove or the water purification gear groove, so that the hollow rotating shaft can be driven by a user to rotate, and circumferential positioning of the hollow rotating shaft can be realized.

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

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic structural diagram of a control valve according to a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of an explosion structure of a control valve in a preferred embodiment of the present invention;

fig. 3 is a schematic structural view of a lower valve sleeve in a preferred embodiment of the present invention;

fig. 4 is a perspective cross-sectional view of the lower valve sleeve mounted on the valve seat in the preferred embodiment of the present invention;

FIG. 5 is a schematic structural view of a hollow shaft according to a preferred embodiment of the present invention;

FIG. 6 is a cross sectional view of the control valve when the raw water passage communicates with the water inlet in the preferred embodiment of the present invention;

FIG. 7 is a longitudinal sectional view of the control valve when the raw water passage communicates with the water inlet in the preferred embodiment of the present invention;

FIG. 8 is a cross sectional view of the control valve in the preferred embodiment of the present invention with the water purification passage in communication with the water inlet;

fig. 9 is a longitudinal sectional view of the control valve when the water purification passage communicates with the water inlet in the preferred embodiment of the present invention.

Reference numerals:

10. a raw water channel; 11. a water purification channel; 100. a valve seat; 101. a raw water outlet; 102. a purified water outlet; 110. positioning the shaft sleeve; 120. avoiding holes; 200. a valve cover; 201. a water inlet; 300. a hollow rotating shaft; 310. a movable plate; 311. a runner port; 312. a first positioning hole; 320. a first positioning rib; 330. an upper seal gasket; 340. rounding off; 350. a connecting portion; 360. mounting holes; 400. a lower valve sleeve; 410. separating ribs; 420. a base; 430. supporting rib positions; 440. a lower shaft sleeve; 441. a support platform; 4411. a second positioning rib; 450. a fixing sheet; 451. a first through hole; 452. a second through hole; 453. a second positioning hole; 460. a lower seal gasket; 500. an upper valve sleeve; 510. an upper shaft sleeve; 511. a first limit plate; 520. an annular mounting portion; 530. a second limiting plate; 531. a raw water level tank; 532. a water purification gear tank; 600. an adapter; 700. a handle; 800. positioning pins; 900. an elastic member.

[ detailed description ] embodiments

The utility model provides a control valve of tap water purifier, including the casing that is equipped with water inlet, raw water export and water purification export, be equipped with in the casing with the raw water passageway of raw water export intercommunication and with the water purification passageway of water purification export intercommunication, still rotate in the casing and install hollow pivot, hollow pivot with the coaxial setting of water inlet, hollow pivot upper end with the water inlet intercommunication, the drive hollow pivot round the axis of water inlet rotates, so that hollow pivot lower extreme with raw water passageway or water purification passageway intercommunication.

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.

Referring to fig. 1 to 9, the control valve in this embodiment includes a housing, the housing includes a valve seat 100 and a valve cover 200, which are formed by separate processing, the valve cover 200 is connected to the valve seat 100 to form the housing, a raw water outlet 101 is formed on a bottom wall of the valve seat 100, a purified water outlet 102 is formed on a side wall of the valve seat 100, and the purified water outlet 102 is connected to a filter assembly. The top wall of the valve cover 200 is provided with a water inlet 201, the shell is internally provided with a raw water channel 10 communicated with a raw water outlet 101 and a purified water channel 11 communicated with a purified water outlet 102, in addition, the shell of the embodiment is internally provided with a hollow rotating shaft 300 in a rotating way, the hollow rotating shaft 300 is coaxially arranged with the water inlet 201, the upper end of the hollow rotating shaft is communicated with the water inlet 201, and the hollow rotating shaft 300 is driven to rotate around the axis of the water inlet 201, so that the lower end of the hollow rotating shaft is communicated with the raw water channel.

Specifically, the housing of the present embodiment further includes a lower valve housing 400 fixed on the valve seat 100, the lower valve housing 400 includes an axial tube and a transverse tube formed by radially extending outward a side wall of the axial tube, a partition rib 410 is disposed in the axial tube to partition the inside of the axial tube into two independent cavities and is in an L shape, one of the open-bottom chambers forms the raw water channel 10, the other closed-bottom chamber communicates with the inside of the transverse tube to form the purified water channel 11, the outer end of the transverse tube forms the purified water outlet 102, the lower valve sleeve 400 in this embodiment is preferably detachably fixed in the valve seat 100, at this time, a gap for avoiding the transverse tube is formed on the side wall of the valve seat 100, in this way, the lower valve housing 400 can be installed in the valve seat 100 from top to bottom, the lower valve housing 400 further includes a base 420 formed by radially extending outward from the outer peripheral side of the axial pipe, and the base 420 is fixed to the valve seat 100 by screws; in addition, the valve seat 100 is further provided with a positioning shaft sleeve 110 which surrounds the outer side of the raw water outlet 101 and extends upwards to form, the axial pipe comprises a small-diameter section and a large-diameter section arranged at the lower end of the small-diameter section, the separating rib 410 is arranged in the small-diameter section, the large-diameter section is sleeved on the outer side of the positioning shaft sleeve 110, and a sealing ring is arranged between the large-diameter section and the positioning shaft sleeve 110 to seal a gap between the large-diameter section and the positioning shaft sleeve 110 so as to avoid raw water leakage; the shaft shoulder surface between the small-diameter section and the large-diameter section is provided with a downwardly extending support rib position 430, the bottom surface of the support rib position 430 is flush with the bottom surface of the separation rib 410, and the bottom surface of the separation rib 410 and the bottom surface of the support rib position 430 are both abutted against the top surface of the positioning shaft sleeve 110, so that raw water leakage is further prevented.

It will be appreciated that in other embodiments, the lower housing may also be formed integrally with the valve seat to simplify the assembly process.

In order to ensure the coaxiality of the hollow rotating shaft 300 and the water inlet 201 and avoid the rotation deviation of the hollow rotating shaft 300, in this embodiment, a lower shaft sleeve 440 sleeved outside the hollow rotating shaft 300 is arranged in the housing, the lower shaft sleeve 440 and the axial pipe are integrally formed, a fixing plate 450 is fixed in the lower shaft sleeve 440, a first through hole 451 communicated with the water purifying channel 11 and a second through hole 452 communicated with the raw water channel 10 are arranged on the fixing plate 450, a supporting platform 441 radially and inwardly extending to the outer side surface of the axial pipe is arranged in the lower shaft sleeve 440, the supporting platform 441 is flush with the top surface of the separating rib 410, a second groove is arranged on the top surfaces of the supporting platform 441 and the separating rib 410, a lower sealing gasket 460 is embedded in the second groove, the fixing plate 450 is placed on the top surfaces of the supporting platform 441 and the separating rib 410 and is pressed on the lower sealing gasket 460, in order to prevent the first through hole 451 from being simultaneously communicated with the water purifying channel 11 and the raw water channel 10 when the fixing plate 450 rotates in the lower shaft sleeve 440, the supporting platform 441 in this embodiment is provided with at least one second positioning rib 4411 protruding upward, and the edge of the fixing plate 450 is provided with a second positioning hole 453 engaged with the second positioning rib 4411 in a plugging manner, so as to circumferentially fix the fixing plate 450.

It is understood that in other embodiments, at least one second positioning hole is formed on the supporting platform, a second positioning rib extending downwards is formed on the edge of the fixing piece, and the second positioning rib is inserted into the second positioning hole.

In addition, in the present embodiment, the bottom of the hollow rotating shaft 300 is packaged with a movable plate 310 that rotates synchronously, and the specific implementation manner is: the movable sheet 310 is provided with at least one first positioning hole 312 deviating from the axis of the hollow rotating shaft, preferably, the first positioning hole 312 is arranged at the edge of the movable sheet 310, the bottom edge of the hollow rotating shaft 300 is provided with a first positioning rib 320 which extends downwards and is matched with the first positioning hole 312 in an inserting manner, and the hollow rotating shaft 300 and the movable sheet 310 can synchronously rotate through the matching of the first positioning rib 320 and the first positioning hole 312; in order to avoid leakage of raw water from the gap between the hollow rotating shaft 300 and the movable plate 310, a first groove is formed in the bottom of the hollow rotating shaft in the embodiment, an upper sealing gasket 330 is embedded in the first groove, and the upper sealing gasket 330 is pressed between the movable plate 310 and the bottom wall of the first groove, so that the movable plate 310 is packaged at the bottom of the hollow rotating shaft 300. In addition, the movable plate 310 is provided with a runner port 311 communicated with the lower end of the hollow rotating shaft, the movable plate 310 is pressed on the fixed plate 450, the movable plate 310 and the fixed plate 450 adopt a mirror surface fit to drive the hollow rotating shaft 300 to rotate, and the runner port 311 can be communicated with the first through hole 451 or the second through hole 452. In the embodiment, the water sealing can be realized by the mirror surface joint of the movable sheet 310 and the fixed sheet 450, so that the design of a sealing piece between the two is omitted; in addition, the scheme of mirror surface laminating also can further reduce the frictional force that receives when hollow rotating shaft 300 rotates, and then makes user's operation more laborsaving. Preferably, the fixed plate 450 and the movable plate 310 in this embodiment are ceramic plates. In embodiments thereof, the stationary and movable sheets may also be glass sheets.

It can be understood that, in other embodiments, the bottom edge of the hollow rotating shaft may further be provided with a first positioning hole, and the movable plate is provided with a first positioning rib extending upwards and engaged with the first positioning hole in an inserting manner.

It is understood that, in other embodiments, the bottom of the hollow rotating shaft may also be made into an integrally formed bottom wall to close the lower end of the hollow rotating shaft, and then the bottom wall of the hollow rotating shaft is provided with the flow passage opening, and the bottom wall of the hollow rotating shaft is directly pressed on the fixing sheet to drive the hollow rotating shaft to rotate, so that the flow passage opening can be communicated with the first through hole or the second through hole.

In addition, in order to further ensure the coaxiality between the hollow rotating shaft 300 and the water inlet 201, an upper valve sleeve 500 is further fixed in the housing in this embodiment, the upper valve sleeve 500 includes an upper shaft sleeve 510 hermetically sleeved on the outer side of the hollow rotating shaft 300, and the sealing sleeving means that a sealing ring is arranged between the upper shaft sleeve 510 and the hollow rotating shaft 300. The upper shaft sleeve 510 is provided with a first limiting plate 511 which is pressed on the top of the hollow rotating shaft, the first limiting plate 511 is provided with a water through hole for communicating the water inlet 201 with the hollow rotating shaft 300, and therefore the first limiting plate 511 can limit the hollow rotating shaft 300 upwards, the first limiting plate 511 is matched with the fixing plate 450 to limit the hollow rotating shaft 300 axially, the hollow rotating shaft 300 is prevented from moving upwards and downwards, the upper shaft sleeve 510 and the lower shaft sleeve 440 can limit the hollow rotating shaft 300 radially, and accordingly the installation firmness of the hollow rotating shaft 300 is improved. The upper valve sleeve 500 in the embodiment further comprises an annular mounting portion 520 with a U-shaped longitudinal section, an inner ring of the annular mounting portion 520 is connected with the first limiting plate 511, a screw column is arranged on the base 420, the tail of a screw penetrates through the bottom wall of the annular mounting portion 520 to be locked on the screw column, the upper valve sleeve 500 is fixed in the shell, an external thread is tapped on the outer peripheral side of an outer annular plate of the annular mounting portion 520, the valve cover 200 is screwed on the outer side of the upper valve sleeve 500, the bottom surface of the valve cover 200 is in butt joint with the top surface of the valve seat 100, compared with the mode of fixedly welding the valve seat and the valve cover in the prior art, and the fixed mode of the embodiment is convenient for later-stage dismounting and maintenance.

It is understood that in other embodiments, the upper shaft sleeve may be integrally formed with the valve cover, and the valve cover is fixed to the valve seat by welding or screwing.

Preferably, the hollow rotating shaft is provided with the fillet 340 at the top, so the contact area between the top of the hollow rotating shaft and the first limiting plate 511 can be reduced, the friction force received by the hollow rotating shaft 300 during rotation can be reduced, and the user operation is more labor-saving.

In order to realize being connected of control valve and tap, the control valve of this embodiment is still including running through the adapter 600 that water inlet 201 set up, and the bottom of adapter 600 is equipped with the annular boss of radial outside extension, and the annular boss clamp dress is injectd between the roof of first limiting plate 511 and valve gap, and adapter 600 connects with tap soon. In order to avoid the leakage of raw water from the gap between the upper valve sleeve 500 and the adapter 600, in this embodiment, a sealing ring is clamped between the first limiting plate 511 and the adapter 600, in order to radially position the sealing ring, an upward protruding annular positioning rib is arranged on the top surface of the first limiting plate 511, and the sealing ring is sleeved outside the annular positioning rib.

It is understood that in other embodiments, the upper shaft sleeve can also be arranged through the water inlet, and the upper shaft sleeve is screwed with the water faucet.

In order to drive the hollow rotating shaft 300 to rotate, the control valve of the embodiment further comprises a handle 700, one end of the handle is connected with the hollow rotating shaft 300, the housing is provided with an avoiding hole 120, the avoiding hole 120 in the embodiment is arranged on the valve seat 100, the handle 700 penetrates through the avoiding hole 120, and a user can drive the hollow rotating shaft 300 to rotate by poking the part of the handle 700, which is located outside the housing. In order to avoid the need of performing sealing and waterproof treatment after the handle 700 is directly connected to the hollow rotating shaft 300, the side wall of the hollow rotating shaft 300 in this embodiment is provided with the integrally formed connecting portion 350, the connecting portion 350 is an arc-shaped guide plate, one end of the handle 700 is connected to the guide plate in a threaded or screwed manner, preferably in a threaded manner, the guide plate is in sliding fit with the inner side surface of the housing, and preferably, the guide plate is in sliding fit with the inner side surface of the valve seat 100, so that the sliding of the guide plate can be guided, and the coaxiality of the hollow rotating shaft 300, the upper shaft sleeve 510 and the lower shaft sleeve 440 can be further ensured.

In addition, in order to remind the user to drive the hollow rotating shaft 300 to rotate to the right position, a second limiting plate 530 located outside the hollow rotating shaft 300 is fixed in the housing in this embodiment, the second limiting plate 530 is integrally formed with the upper shaft sleeve 510 or the lower shaft sleeve 440, in this embodiment, it is preferable that the second limiting plate 530 is integrally formed with the upper shaft sleeve 510, a raw water gear groove 531 and a purified water gear groove 532 are arranged on the second limiting plate 530, an elastic pin is installed on the hollow rotating shaft 300 to drive the hollow rotating shaft 300 to rotate, so that the elastic pin is switched between the raw water gear groove 531 and the purified water gear groove 532, when the elastic pin is inserted into the raw water gear groove 531, the flow passage opening 311 is communicated with the raw water passage 10, and when the elastic pin is inserted into the purified water gear groove 532, the flow passage opening 311 is communicated with the purified water passage 11. Therefore, the hollow rotating shaft 300 can be circumferentially positioned after the handle 700 is pushed to the right position, and the communication between the runner opening 311 and the water purification channel 11 or the raw water channel 10 is ensured; in addition, when the elastic pin card is inserted into the raw water gear groove 531 or the water purification gear groove 532, a click sound is generated by the impact, so that the user is reminded that the hollow rotating shaft 300 rotates to the position, and the use experience of the user is improved.

Specifically, the hollow rotating shaft 300 in this embodiment is provided with a radially extending mounting hole 360, the mounting hole 360 is a blind hole, an opening of the mounting hole 360 faces outward, the elastic pin includes a positioning pin 800 and an elastic member 900 sleeved on the positioning pin 800, the positioning pin 800 is provided with a positioning shoulder, the elastic member 900 is clamped between the mounting hole bottom wall and the positioning shoulder, the elastic member 900 is a spring or an elastic silica gel sleeve or an elastic rubber sleeve, and one end of the positioning pin 800 inserted into the raw water gear groove 531 or the purified water gear groove 532 is a spherical surface. When the positioning pin 800 is dislocated with the raw water gear groove 531 or the purified water gear groove 532, the elastic member 900 is compressed, and when the hollow rotating shaft 300 is rotated to align the positioning pin 800 with the raw water gear groove 531 or the purified water gear groove 532, the elastic member 900 drives the positioning pin 800 to extend out and insert into the raw water gear groove 531 or the purified water gear groove 532, so that the hollow rotating shaft 300 can be driven by a user to rotate, and circumferential positioning of the hollow rotating shaft 300 can be realized.

It can be understood that, in other embodiments, the elastic pin still can be established on the second limiting plate, and former water gear groove and water purification gear groove locate on the lateral wall of hollow rotating shaft, so design, also can realize shifting the effect that targets in place to the circumference location of hollow rotating shaft and warning user.

The control valve assembly sequence in this embodiment is: 1. the lower valve housing 400 is fixed to the valve seat 100 by screws; 2. the lower packing 460 and the fixing plate 450 are sequentially installed in the lower bushing 440; 3. after the movable plate 310, the upper sealing pad 330, the hollow rotating shaft 300, the sealing ring and the elastic pin are assembled, the whole body is placed on the fixed plate 450, so that the flow passage opening 311 corresponds to the second through hole 452, and meanwhile, the positioning pin 800 is ensured to be inserted into the raw water gear groove 531; 4. a mounting handle 700; 5. the upper valve housing 500 is fixed to the lower valve housing 400 by screws; 6. sleeving a sealing ring on the annular positioning rib, and pressing the adapter 600 on the sealing ring; 7. the valve cap 200 is screwed to the outside of the upper valve housing 500 to fix the adapter 600.

Therefore, the water channel in this embodiment is axially arranged through the hollow rotating shaft 300, and the water inlet 201 can be communicated with the raw water channel 10 or the purified water channel 11 by driving the hollow rotating shaft 300 to rotate around the axis of the water inlet 201, without providing other through holes on the periphery of the hollow rotating shaft for water channel conversion, so that the structure of the hollow rotating shaft 300 can be simplified, and the processing cost of the hollow rotating shaft 300 can be reduced; in addition, because the two ends of the hollow rotating shaft in the embodiment are the water inlet end and the water outlet end, only the two ends of the hollow rotating shaft are required to be provided with the water sealing points, so that the number of the water sealing points and the number of the sealing pieces are reduced, the assembly efficiency of the control valve is improved, and the manufacturing cost is reduced; finally, the control valve in the embodiment is assembled in an axial pyramid stacking mode, so that the assembly is simple.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims

1. The utility model provides a control valve of tap water purifier, including the casing that is equipped with water inlet, raw water export and water purification export, be equipped with in the casing with the raw water passageway of raw water export intercommunication and with the water purification passageway of water purification export intercommunication, its characterized in that, still rotate in the casing and install hollow rotating shaft, hollow rotating shaft with the coaxial setting of water inlet, hollow rotating shaft upper end with water inlet intercommunication, drive hollow rotating shaft round the axis of water inlet rotates, so that hollow rotating shaft lower extreme with raw water passageway or water purification passageway intercommunication.

2. The control valve of faucet water purifier as recited in claim 1, wherein a synchronously rotating movable plate is encapsulated at the bottom of the hollow shaft, and a flow port opening communicating with the lower end of the hollow shaft is provided on the movable plate to drive the hollow shaft to rotate, so that the flow port opening communicates with the raw water channel or the purified water channel.

3. The control valve of a faucet water purifier as recited in claim 2, wherein one of the hollow rotating shaft and the movable plate is provided with a first positioning hole, the first positioning hole is arranged to be deviated from the axis of the hollow rotating shaft, and the other one is provided with a first positioning rib which is inserted and matched with the first positioning hole.

4. The control valve of claim 2, wherein a lower sleeve is fixed in the housing and is sleeved on the outer side of the hollow rotating shaft, a fixed plate is fixed in the lower sleeve and is in mirror fit with the movable plate, a first through hole communicated with the purified water channel and a second through hole communicated with the raw water channel are formed in the fixed plate, and the hollow rotating shaft is driven to rotate, so that the runner port is communicated with the first through hole or the second through hole.

5. The control valve of claim 4, wherein the lower sleeve has a supporting platform extending radially inward, one of the supporting platform and the fixing plate has a second positioning hole, and the other has a second positioning rib engaged with the second positioning hole.

6. The control valve of claim 1, wherein an upper valve sleeve is further fixed in the housing, the upper valve sleeve comprises an upper shaft sleeve which is hermetically sleeved outside the hollow rotating shaft, the upper shaft sleeve is provided with a first limiting plate which is press-fitted on the top of the hollow rotating shaft, and the first limiting plate is provided with a water through hole which communicates the water inlet and the hollow rotating shaft.

7. The control valve for a faucet water purifier as recited in claim 6, wherein the top of the hollow rotating shaft is rounded.

8. The control valve of a faucet water purifier as claimed in one of claims 1 to 7, wherein the control valve further comprises a handle for driving the hollow shaft to rotate, the housing is provided with an avoiding hole, and the handle is disposed through the avoiding hole.

9. The control valve of a faucet water purifier as claimed in one of claims 1 to 7, wherein a second position-limiting plate is fixed in the housing and located outside the hollow shaft, the second position-limiting plate is provided with a raw water level groove and a purified water level groove, the hollow shaft is provided with a resilient pin, the resilient pin is driven to rotate so as to switch between the raw water level groove and the purified water level groove, when the resilient pin is inserted into the raw water level groove, the lower end of the hollow shaft is communicated with the raw water channel, and when the resilient pin is inserted into the purified water level groove, the lower end of the hollow shaft is communicated with the purified water channel.

10. The control valve for a faucet water purifier as recited in claim 9, wherein the hollow shaft is provided with a radially extending mounting hole, the resilient pin comprises a positioning pin and a resilient member fitted around the positioning pin, the positioning pin is provided with a positioning shoulder, and the resilient member is sandwiched between the bottom wall of the mounting hole and the positioning shoulder.