CN217301714U - Self-cleaning faucet control valve and self-cleaning faucet using same - Google Patents

Abstract

The utility model relates to a self-cleaning faucet control valve and use its self-cleaning faucet, include: a valve body having a water inlet; the valve core assembly comprises a valve sleeve and a valve core, and the valve sleeve is provided with a water through hole; the rotating sleeve can be rotatably arranged at the bottom of the valve body and is linked with the lower end of the valve core; the valve body water inlet includes the first water inlet that links to each other with tap's cold water passageway and the second water inlet that links to each other with tap's hot water passageway, cross the water hole and include the first water hole of crossing relative with first water inlet and cross the water hole with the second that the second water inlet is relative, the case upper end has the breach portion that supplies rivers to pass through, at case rotation in-process, breach portion can cross at least one in the water hole relatively and make the control valve be in and lead to the water state and cross the equal staggered arrangement in water hole and make the control valve be in the state of cutting off the water with first water hole and second of crossing with first water hole and second crossing. The user rotates and rotates the switching that the cover can realize cold water, hot water and cold and hot mixed water and uses, has improved user's use and has experienced.

Description

Self-cleaning faucet control valve and self-cleaning faucet using same

Technical Field

The utility model relates to a control valve technical field especially relates to an install in tap's delivery port department and can self-cleaning's automatically cleaning tap control valve and use its automatically cleaning tap.

Background

A conventional faucet control valve is installed in a faucet, and the control valve is opened and closed by operating a handle on the faucet. However, after the handle is repeatedly operated, various dirt or bacteria are inevitably generated on the handle, and particularly, the phenomenon is more obvious when the handle type faucet is installed in a public place, so that cleaning personnel need to clean or disinfect the faucet in time. Therefore, people design an induction type faucet, and the induction type faucet does not need to contact a handle, so that the defects of the traditional faucet can be well overcome, but an induction sensor in the induction type faucet is easy to damage, and the induction type faucet can not be normally and reliably used.

Therefore, people also design a self-cleaning type faucet control valve, for example, the control valve disclosed in the document with chinese patent publication No. CN204961877U, which comprises a valve body installed in the water outlet of the faucet, wherein an internal thread surrounding a water flow channel is formed in the water outlet of the faucet, a water through hole is formed at one end of the valve body, a valve rod is arranged at the other end of the valve body, an external thread capable of matching with the internal thread is formed on the outer peripheral surface of one end of the valve body, and a water outlet hole is formed on the side surface of the valve body. When the valve is used, water flowing out of the water outlet hole on the outer peripheral surface of one end of the valve body can automatically wash the valve rod at the other end of the valve body, so that the purpose of self-cleaning the handle is achieved. However, since the tap water in the faucet has a certain pressure, when the tap water in the faucet flows out from the water outlet holes on the outer peripheral surface of the valve body, the tap water is jetted radially outwards due to the water pressure, then falls down due to the self-weight, water splash can be caused, the water amount is not concentrated and is disordered, and the radial jetting distance can be different due to different water pressures.

Also, for example, the application No. CN202021987353.2 (No. CN213332535U) discloses a self-cleaning faucet control valve, which comprises a valve body, a valve core and a valve rod capable of driving the valve core and partially exposed out of the valve body, wherein the upper end of the valve body is provided with a water inlet, the self-cleaning faucet control valve is characterized by further comprising an upper valve sleeve and a lower valve sleeve which are sleeved outside the valve body, the upper valve sleeve is positioned above the lower valve sleeve and can be installed at a water outlet of a faucet, the top of the upper valve sleeve is provided with a water through hole communicated with the water inlet on the valve body, the lower valve sleeve can be linked with the valve rod, the lower valve sleeve is provided with a large-diameter section positioned at the upper part and a small-diameter section positioned at the lower part, a radial wall is formed between the large-diameter section and the small-diameter section, the radial wall is provided with a plurality of drain holes which are distributed at intervals along the circumferential direction, the wall surface of the valve body is provided with a drain hole which is communicated with the valve cavity and the valve cavity, and the water in the valve cavity can fall down along the outer wall of the small-diameter section from the drain hole through the drain hole when the valve core is opened, therefore, the purpose of self-cleaning the operation part can be achieved, the axial lengths of the large and small diameter sections can be reasonably selected, and the requirements of different users can be met.

Firstly, the control valve can only realize the on-off function of water flow, but can not realize the switching use of cold water, hot water and cold-hot mixed water, so that the use requirement can be met by matching with an additionally arranged cold-hot water control valve, and the use cost of a user is increased; secondly, when the control valve is used for self-cleaning the valve rod, if the water flow is large, the water flow can upwards gush out along a gap between the outer sleeve and the large-diameter section of the lower valve sleeve, so that the outer wall surface of the outer sleeve is always in a wetting state, and the hidden health trouble is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem to provide a can realize the automatically cleaning tap control valve that cold water, hot water and cold and hot mixed water's switching was used to the current situation of prior art.

The utility model discloses the second technical problem that will solve is to prior art's current situation, provides one kind and can effectively avoid in the use excessive gushing out of rivers and the automatically cleaning tap control valve that wets other parts.

The utility model discloses the third technical problem that will solve is to prior art's current situation, provides an use automatically cleaning tap of above-mentioned automatically cleaning tap control valve.

The utility model provides a technical scheme that first technical problem adopted does: a self-cleaning faucet control valve comprising:

the valve body is provided with a valve cavity with an open lower end and a water inlet which is positioned at the upper end and is communicated with the valve cavity;

the valve core assembly is arranged in the valve cavity of the valve body and comprises a valve sleeve and a valve core, a water passing hole opposite to the water inlet is formed in the upper end of the valve sleeve, the valve core is integrally rod-shaped and can be rotatably arranged in the valve sleeve to control the on-off of water flow at the water passing hole, the lower end of the valve core is exposed out of the valve sleeve, a water passing hole is formed in the wall of the valve sleeve, and a water passing flow channel for communicating the water passing hole with the lower end opening of the valve body is defined between the valve sleeve and the inner wall of the valve body;

the rotating sleeve is rotatably arranged at the bottom of the valve body and is linked with the lower end of the valve core, the rotating sleeve is provided with an upper opening and can be sleeved on an upper sleeve part outside the valve body and a lower sleeve part with a lower opening, the caliber of the lower sleeve part is smaller than that of the upper sleeve part, a radial wall is formed between the upper sleeve part and the lower sleeve part, a plurality of drain holes distributed at intervals along the circumferential direction are formed in the radial wall, the drain holes are communicated with the water passing flow channel, and when the valve core is in an open state, water entering the water passing flow channel falls down along the outer wall surface of the lower sleeve part through the drain holes;

the water inlet on the valve body comprises a first water inlet and a second water inlet, the first water inlet is used for being connected with a cold water channel of the water faucet, the second water inlet is used for being connected with a hot water channel of the water faucet, the water passing holes are also two and are respectively a first water passing hole opposite to the first water inlet and a second water passing hole opposite to the second water inlet, the upper end of the valve core is provided with a notch part for water flow to pass through, in the rotating process of the valve core, at least part of the notch part can be opposite to at least one of the first water passing hole and the second water passing hole so that the control valve is in a water passing state and is in a water breaking state due to the fact that the first water passing hole and the second water passing hole are arranged in a staggered mode.

In order to assemble and fix the valve core assembly in the valve body, the valve sleeve is integrally cylindrical, the outer wall of the valve sleeve is provided with a first step part with a large upper part and a small lower part, the inner wall of the lower opening of the valve body is further in threaded connection with a limiting blocking piece, the limiting blocking piece is sleeved outside the lower part of the valve sleeve and abuts against the first step part of the valve sleeve, the valve sleeve is pressed in the valve body, and the water passing flow channel is defined between the upper part of the valve sleeve and the inner wall of the valve body.

In order to lead the water in the water flowing channel out to the lower opening of the valve body, the upper surface of the limiting blocking piece is provided with limiting bulges which are arranged at intervals along the circumferential direction, and the limiting bulges are abutted against the first step part of the valve sleeve, so that a first overflowing gap communicated with the water flowing channel is defined between the limiting blocking piece and the valve sleeve.

In order to realize the assembly among the valve core, the valve sleeve and the rotating sleeve and better control the rotation of the valve core through the rotating sleeve, the inner wall of the valve sleeve forms a step hole with a big top and a small bottom, the valve core is wholly columnar, the outer wall of the valve core is provided with a second step part with a big top and a small bottom, the valve core is arranged in the step hole in a penetrating way, the second step part is abutted against the shoulder of the step hole, the rotating sleeve is internally provided with a blocking wall, the blocking wall is provided with a mounting hole which is in non-circular fit with the lower end of the valve core, and the lower end of the valve core below the blocking wall is provided with a fastener for positioning the lower sleeve part on the valve core.

In order to fix the valve sleeve relative to the valve body and prevent the valve core from rotating together when the valve core rotates, the upper end of the valve sleeve is abutted against the inner wall of the valve body, one of the valve sleeve and the valve body is provided with a positioning convex column, and the other one of the valve sleeve and the valve body is provided with a positioning hole for the positioning convex column to be inserted into.

In order to facilitate the assembly of the components such as the valve core and the like in the valve sleeve, the valve sleeve comprises a valve sleeve body with an open upper end and a valve cover connected to the upper end opening of the valve sleeve body in a buckling connection mode, the valve cover is provided with a first water passing hole and a second water passing hole, and the positioning convex column is arranged on the valve cover.

In order to better realize the running fit with the valve core, the valve core assembly further comprises a valve plate, the valve plate is provided with a third water passing hole opposite to the first water passing hole and a fourth water passing hole opposite to the second water passing hole, an annular sealing element is sleeved on the peripheral wall of the valve plate and is in contact with the inner wall of the valve sleeve, and the upper end of the valve core is abutted to the valve plate.

In order to integrally connect the control valve to the faucet, the upper end of the valve body has an external threaded portion for threaded connection with the outlet of the faucet.

The utility model provides a technical scheme that second technical problem adopted does: the inner wall of the radial wall of the rotating sleeve is also provided with a first annular wall extending upwards, the height of the first annular wall is lower than that of the upper sleeve part, a first annular groove is formed between the first annular wall and the inner wall of the upper sleeve part, the bottom of the valve body is provided with a second annular groove extending vertically and having an open lower part, the first annular wall extends into the second annular groove of the valve body, so that a buffer flow channel is formed between the first annular groove and the second annular groove, the two groups of the water drainage holes are respectively a first water drainage hole positioned on the inner side of the first annular wall and a second water drainage hole positioned on the outer side of the first annular wall, and the first water drainage hole and the second water drainage hole are communicated through the buffer flow channel.

In the preferred scheme, be located the first drain hole of first annular wall inboard has the edge the radial multiunit that arranges in proper order of radial wall rotates the cover and puts in place with valve body and case subassembly after, has formed a foaming chamber in the top space region of the radial wall of rotating the cover, and it fully strikes in foaming chamber to flow through the case subassembly when rivers, then outside the foaming chamber is gone out to the dispersion formation of the first drain hole of multiunit mitigateing, carries out more comprehensive, abundant washing to the outer wall of the lower cover portion of rotating the cover. In addition, during the process that water flows through the first drainage hole of above-mentioned multiunit and discharges, arbitrary adjacent two streams of trickle collide each other also can produce the bubble, have reached the effect of abundant foaming. The structure arrangement can achieve the foaming function without additionally arranging a special bubbler part, and saves the material cost and the assembly cost.

The structural design of the buffer flow channel effectively prevents water flow from excessively flowing out from the upper edge of the upper sleeve part to wet the outer wall surface of the upper sleeve part in the using process, and a user can operate the upper sleeve part of the rotating sleeve (which can be used as a dry switch because the water flow cannot be wetted) and can also operate the lower sleeve part of the rotating sleeve (which can be used as a wet switch because the water flow can be wetted and cleaned) in actual operation. On the basis, a gap communicated with the buffer flow channel is formed between the inner wall of the upper sleeve part of the rotating sleeve and the outer wall of the lower part of the valve body, and external air can enter the control valve through the gap so as to ensure that water flow can be foamed more fully.

Because the upper end of the lower sleeve part of the rotating sleeve is connected with the middle part of the area of the radial wall where the first drainage hole is located, the outer peripheral wall of the lower sleeve part of the rotating sleeve can be fully flushed when water flows out, a good complete cleaning effect is achieved, and the complex structure that the foaming device needs to be additionally assembled on the basis of the outer-layer flushing and inner-layer water passing structure of the original control valve is changed.

The utility model provides a technical scheme that third technical problem adopted does: a self-cleaning faucet comprises a faucet body with a mounting end and a water outlet, wherein a cold water channel and a hot water channel which extend from the mounting end to the water outlet and a self-cleaning faucet control valve are arranged in the faucet body, a valve body of the control valve is connected with the water outlet of the faucet body, the cold water channel is communicated with a first water inlet of the valve body, and the hot water channel is communicated with a second water inlet of the valve body.

Compared with the prior art, the utility model has the advantages that:

1. the water inlet of the self-cleaning water faucet control valve comprises a first water inlet and a second water inlet, wherein the first water inlet can be connected with a cold water channel of the water faucet, the second water inlet can be connected with a hot water channel of the water faucet, the water passing holes of the valve sleeve are correspondingly provided with two water passing holes which are respectively a first water passing hole opposite to the first water inlet and a second water passing hole opposite to the second water inlet, a user rotates the rotating sleeve to drive the valve core to rotate, at least part of the notch part of the valve core can be opposite to at least one of the first water passing hole and the second water passing hole in the rotating process of the valve core to enable the control valve to be in a water passing state and to be in a staggered arrangement with the first water passing hole and the second water passing hole to enable the control valve to be in a water breaking state, namely, the switching use of cold water, hot water and cold and hot mixed water can be realized, and the use experience of the user is improved, and in the use process, the outer wall of the lower sleeve part of the rotating sleeve can be comprehensively cleaned, so that water for a user is cleaner and more sanitary.

2. The installation mode of the original faucet and the cold and hot water switching valve is changed, the control valve is directly installed at the water outlet of the faucet or is integrally connected with the water outlet of the faucet, the cold and hot water can be blended at the water outlet of the faucet, the installation is convenient, and a large amount of faucet resources are saved.

3. The control valve is directly installed at the water outlet of the faucet, the distance between the water outlet of the original faucet and the water flow switch is effectively shortened, the user can use water immediately, and the user experience is improved. Particularly, after the user finishes using water, the control valve of the water outlet of the water faucet can be directly operated to immediately close the water outlet, and compared with the prior art that the user needs to operate switches at other positions far away from the water outlet of the water faucet, the waste of water flow is avoided, and the purpose of saving water is achieved.

4. The control valve does not need to be additionally provided with a special bubbler part, and the bubbling function can be achieved through the structure of the control valve, so that the material cost and the assembly cost are saved. Wherein, the setting up of the first drainage hole of multiunit on the control valve rotating sleeve can form the foaming water outflow foaming chamber that mitigatees with the rivers dispersion outside, when the outer wall of the lower cover portion of realization rotating sleeve washed comprehensively, has also improved the comfortable experience of user sanitary water.

Drawings

Fig. 1 is a schematic perspective view of a control valve in embodiment 1 of the present invention;

fig. 2 is a schematic perspective view of another angle of the control valve according to embodiment 1 of the present invention;

fig. 3 is a vertical cross-sectional view of a control valve in embodiment 1 of the present invention;

fig. 4 is an exploded view of a control valve according to embodiment 1 of the present invention;

fig. 5 is an exploded view of a valve element assembly of a control valve according to embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a faucet body according to embodiment 1 of the present invention;

fig. 7 is a schematic perspective view of a rotating sleeve of a control valve according to embodiment 2 of the present invention;

fig. 8 is a perspective cross-sectional view of a rotary sleeve of a control valve according to embodiment 2 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like, are used in the specification and claims of the present invention to describe various example structural parts and elements of the present invention, but these terms are used herein only for convenience of description and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Example 1

Referring to fig. 1 to 5, the self-cleaning faucet control valve includes a valve body 10, a valve core assembly 2 and a rotary sleeve 50, wherein the valve core assembly 2 is disposed in the valve body 10, and specifically includes a valve sleeve 20, and a valve core 24 and a valve sheet 25 disposed in the valve sleeve 20.

Referring to fig. 4, the valve body 10 is a cylindrical structure, and the interior of the valve body is hollow to form a valve cavity 100 with an open lower end, and the valve core assembly 2 is disposed in the valve cavity 100 of the valve body 10. The upper end of the valve body 10 has two water inlets, namely a first water inlet 11a and a second water inlet 11b, which are communicated with the valve cavity 100. The valve body 10 further has an external thread portion 14 at an upper portion thereof for being mounted at an outlet of the faucet, wherein the faucet has a hot water passage (specifically, a hot water pipe) for flowing hot water and a cold water passage (specifically, a cold water pipe) for flowing cold water, the cold water passage is connectable to the first inlet 11a, and the hot water passage is connectable to the second inlet 11 b.

Referring to fig. 5, the valve housing 20 of the valve core assembly 2 includes a housing body 21 with an open upper end, and a valve cover 22 connected to an upper port of the housing body 21 by a snap 222. Specifically, the valve cap 22 has a snap 222 on the outer periphery thereof, and the valve housing body 21 has a bayonet 214 at the upper opening for engaging with the snap 222. After the valve cover 22 is opened, the valve core 24, the valve sheet 25 and other components can be conveniently installed in the valve sleeve body 21.

After the valve core assembly 2 is installed in the valve body 10, the upper end of the valve sleeve 20 (i.e., the valve cover 22) abuts against the upper portion of the inner wall of the valve body 10. Specifically, in order to avoid the valve sleeve 20 from rotating in the circumferential direction (when the valve core 24 rotates), the outer wall surface of the valve cover 22 is provided with the positioning protruding columns 221 extending upwards, and correspondingly, the inner wall of the valve body 10 is provided with the positioning holes 12 into which the positioning protruding columns 221 are inserted, in order to ensure the stability of the valve core assembly 2 in the valve body 10 and avoid the shaking problem, there are two positioning protruding columns 221, and there are two corresponding positioning holes 12 on the inner wall of the valve body 10.

The valve cover 22 further has a first water passing hole 220a opposite to the first water inlet 11a of the valve body 10 and a second water passing hole 220b opposite to the second water inlet 11b of the valve body 10.

The valve housing body 21 is also cylindrical as a whole, the outer wall of the valve housing body 21 has a first stepped portion 211 having a large top and a small bottom, and correspondingly, a stepped hole 212 having a large top and a small bottom is formed in the inner wall of the valve housing body 21, and the stepped hole 212 has a shoulder. The valve element 24 is generally columnar, and the outer wall of the valve element has a second step portion 241 with a large upper portion and a small lower portion, the valve element 24 is inserted into the step hole 212 of the valve sleeve body 21, and the second step portion 241 abuts against the shoulder of the step hole 212. After the valve core 24 is assembled in place, the lower end of the valve core 24 is exposed out of the lower port of the valve housing body 21 and is connected to the rotating sleeve 50 by the fastening member 43 (the specific connection structure is described below).

The circumferential wall of the valve sleeve body 21 has water passing openings 213 arranged at intervals in the circumferential direction, wherein the water passing openings 213 are opposite to the notch 240 of the upper portion of the valve core 24, and the notch 240 of the valve core 24 is explained in detail below.

Referring to fig. 3, in order to assemble the valve core assembly 2 into the valve body 10, a limiting blocking piece 40 is further connected to the inner wall of the lower end opening of the valve body 10 in a threaded manner, a through hole is formed in the middle of the limiting blocking piece 40, and the limiting blocking piece 40 is sleeved outside the lower portion of the valve sleeve 20 and abuts against the first step portion 211 of the valve sleeve 20, so that the valve sleeve 20 is pressed in the valve body 10. A gap is provided between an upper portion (i.e., a large diameter portion) of the valve housing body 21 and an inner wall of the valve body 10, and the annular gap forms a water flow passage 30 through which water flows.

In order to lead the water in the water flow passage 30 out to the lower opening of the valve body 10, the upper surface of the limiting blocking piece 40 is provided with limiting protrusions 41 arranged at intervals along the circumferential direction, and the limiting protrusions 41 are abutted against the bottom surface of the first step part 211 of the valve sleeve body 21, so that a first flow passing gap 421 communicated with the water flow passage 30 is defined between the limiting blocking piece 40 and the bottom surface of the valve sleeve body 21. A second overflowing gap 422 is formed between the inner wall of the through hole of the limiting blocking piece 40 and the lower part of the valve sleeve 20, preferably, the outer peripheral wall of the lower part of the valve sleeve 20 is provided with water passing grooves 420 which extend longitudinally and are arranged at intervals along the circumferential direction, and the water passing grooves 420 together form the second overflowing gap 422 which is communicated with the first overflowing gap 421. The water in the valve sleeve 20 can enter the lower port of the valve body 10 through the water gap 213, the water flowing channel 30, the first overflowing gap 421 and the second overflowing gap 422 in sequence.

A foaming chamber 400 is formed in a space region above the radial wall of the rotating sleeve 50, and the foaming chamber 400 is communicated with the outside air. Specifically, a gap 80 (see fig. 3 in detail) communicating with a buffer flow passage 57 (described later) is formed between an inner wall of the upper housing portion 51 of the rotary housing 50 and an outer wall of a lower portion of the valve body 10, and the gap 80 allows external air to enter into the foaming chamber 400 so that water flow can be more sufficiently foamed.

The second overflow gap 422 is opposite to and communicated with the foaming chamber 400, wherein when water flows through the plurality of overflow grooves 420 forming the second overflow gap 422, the water flows into the foaming chamber 400 in a spray shape and collides with each other violently, and the foaming chamber 400 is communicated with the outside air, so that the water can be fully foamed to form foaming mist.

Referring to fig. 3, in order to better realize the rotation fit with the valve core 24, the valve plate 25 is disposed in the valve sleeve body 21 and abuts against the upper portion of the valve core 24, and the valve plate 25 has a third water through hole 251 opposite to the first water through hole 220a of the valve cover 22 and a fourth water through hole 252 opposite to the second water through hole 220b of the valve cover 22. The outer peripheral wall of valve plate 25 is sleeved with annular sealing element 26, and after valve plate 25 and annular sealing element 26 are assembled in valve sleeve body 21, annular sealing element 26 contacts with the inner wall of valve sleeve 20, so that valve plate 25 cannot rotate along with the valve sleeve in the rotation adjusting process of valve core 24.

The diameter of the upper end of the valve core 24 is matched with the size of the valve plate 25, and a longitudinally extending notch portion 240 is arranged on the valve core, and the cross section of the notch portion 240 is approximately triangular. During the rotation of the valve core 24, at least a portion of the notch portion 240 can be opposite to at least one of the first water passing hole 220a and the second water passing hole 220b to make the control valve in the water passing state and can be arranged in a staggered manner with respect to both the first water passing hole 220a and the second water passing hole 220b to make the control valve in the water cut-off state.

That is, the shape and size of the notch portion 240 of the valve element 24 may be designed such that, during the rotation of the valve element 24, the notch portion 240 of the valve element 24 may be opposite to the first water passing hole 220a of the valve cover 22 (i.e., opposite to the third water passing hole 251 of the valve sheet 25), and the cold water flows out in the water passing state; or opposite to the second water passing hole 220b of the valve cover 22 (i.e. the fourth water passing hole 252 of the valve plate 25), and hot water flows out in the water passing state; of course, the valve core 24 may be rotated and fine-tuned in this state to adjust the flow rates of cold water and hot water, so as to adjust the temperature of the cold and hot mixed water.

The rotary sleeve 50 (specifically, the lower sleeve portion 52 of the rotary sleeve 50) is an operation member for the user to rotationally adjust the valve element 24, is rotatably provided at the bottom of the valve body 10, and is interlocked with the lower end of the valve element 24. Specifically, the rotating sleeve 50 of the present embodiment has an upper opening and can be sleeved on the upper sleeve portion 51 outside the valve body 10 and the lower sleeve portion 52 having a lower opening and a smaller caliber than the upper sleeve portion 51, wherein a radial wall 53 is formed between the upper sleeve portion 52 and the lower sleeve portion 52, a plurality of drainage holes are formed on the radial wall 53 and are circumferentially spaced, the drainage holes are opposite to the lower opening of the valve body 10, and after water flows out from the lower opening of the valve body 10, the water flows out through the drainage holes and falls down along the outer wall surface of the lower sleeve portion 52 to flush the outer wall surface of the lower sleeve portion 52 of the rotating sleeve 50, thereby achieving self-cleaning.

A retaining wall 55 is arranged in the rotating sleeve 50, a mounting hole 550 which is matched with the lower end of the valve core 24 in a non-circular shape is formed in the retaining wall 55, and a fastening piece 43 which is used for positioning the lower sleeve part 52 on the valve core 24 is arranged at the lower end of the valve core 24 below the retaining wall 55. The user rotates the rotating sleeve 50 to drive the valve core 24 to rotate, so that the adjustment is realized, and the switching of cold water, hot water and cold-hot mixed water is realized.

The inner wall of the radial wall 53 of the rotating sleeve 50 also has a first annular wall 54 extending upward, and specifically, the height of the first annular wall 54 is lower than the height of the upper sleeve portion 51. The gap between the first annular wall 54 and the inner wall of the upper jacket portion 51 forms a first annular groove 56. The bottom of the wall of the valve body 10 has a second annular groove 13 extending vertically and opened at the lower portion, and the bottom of the wall of the valve body 10 forms a second annular wall 15 corresponding to a portion outside the second annular groove 13. After the rotating sleeve 50 is mounted in place, the first annular wall 54 of the rotating sleeve 50 projects into the second annular groove 13 of the valve body 10, and the second annular wall 15 of the valve body 10 projects into the first annular groove 56, so that a buffer flow channel 57 is formed between the valve body 10 and the rotating sleeve 50, in which the flow of water is circuitous from the inside to the outside and up and down.

In order to ensure that a gap can be reserved between the rotating sleeve 50 and the valve body 10 as the buffer flow passage 57, the inner wall surface of the first annular wall 54 of the rotating sleeve 50 is provided with a supporting block 541 which protrudes radially inward, a supporting ring 60 is arranged in an inner space surrounded by the first annular wall 54, the bottom of the supporting ring 60 is provided with a notch which is matched with the supporting block 541, after the supporting ring 60 is assembled in place (after the rotating sleeve 50 is fixed by a fastening piece 43 at the lower end of the valve core 24), the supporting block 541 of the rotating sleeve 50 is clamped into the notch of the supporting ring 60, and the upper part of the supporting ring 60 abuts against the bottom edge of the wall of the valve body 10, wherein the diameter of the outer wall of the supporting ring 60 is smaller than the inner diameter of the first annular wall 54, so that a gap is also reserved between the outer wall of the first annular wall 54.

The rotating sleeve 50 of the present embodiment has two sets of water drainage holes, namely a first water drainage hole 53a located inside the first annular wall 54 and a second water drainage hole 53b located outside the first annular wall 54, and the first water drainage hole 53a and the second water drainage hole 53b are sequentially arranged along the circumferential direction of the rotating sleeve 50. Specifically, the first drain hole 53a and the second drain hole 53b are both communicated with the above-described buffer flow passage 57. The arrangement of the buffer flow channel 57 plays a certain buffer role, and avoids that when the water flow is large, the water flow gushes upwards along the gap between the upper sleeve part 51 of the rotating sleeve 50 and the valve body 10, and the outer wall surface of the upper sleeve part 51 of the rotating sleeve 50 is always in a wetting state, so that the sanitation hidden trouble is eliminated.

Referring to the dotted arrow in fig. 3, after the valve core 24 is rotated and opened, water in the cold water channel or the hot water channel of the faucet can sequentially enter the valve sleeve 20 through the first water inlet 11a or the second water inlet 11b of the valve body 10, the first water passing hole 220a or the second water passing hole 220b of the valve sleeve 20, the third water passing hole 251 or the fourth water passing hole 252 of the valve plate 25, and the notch portion 240 of the valve core 24, then enter the water flow channel 30 formed between the valve sleeve 20 and the inner wall of the valve body 10 through the water passing hole 213 on the circumferential wall of the valve sleeve 20, and then flow into the foaming chamber 400 at the lower open position of the valve body 10 through the flow gap between the limiting baffle 40 and the valve sleeve 20, wherein a portion of water flow after sufficient foaming is discharged through the first water discharging hole 53a, washes the outer wall of the lower sleeve portion 52 of the rotating sleeve 50, and is used by the user, another part of the water flow flows along the buffer flow passage 57 and is discharged through the second drainage hole 53b, and also serves to flush the outer wall of the lower casing portion 52 of the rotary casing 50 and to be used by the user.

Referring to fig. 6, the present embodiment further relates to a self-cleaning faucet, which includes a faucet body 7 having a mounting end and a water outlet 70, and the above-mentioned control valve, wherein a cold water channel 71 and a hot water channel 72 are disposed in the faucet body 7, the cold water channel 71 and the hot water channel 72 extend from the mounting end to the water outlet 70, the valve body 10 of the control valve can be screwed to the water outlet 70 of the faucet body 7, the cold water channel 71 is communicated with the first water inlet 11a of the valve body 10 of the control valve, and the hot water channel 72 is communicated with the second water inlet 11b of the valve body. In another embodiment, the valve body 10 of the control valve and the faucet body 7 may be a single piece.

The automatically cleaning tap control valve of this embodiment collects cold and hot switch mediation, foaming water conservation and comprehensive self-cleaning in an organic whole, not only can be used to the control of going out water in public place, also can be fit for the family and use, and the user can select dry-type or wet-type switch operation according to actual conditions, and the comfortable water experience of user has been improved to good foaming effect.

The self-cleaning faucet control valve and the faucet of the embodiment have the advantages that:

1. the cold and hot water pipe is directly integrated with the faucet body, so that the material is saved, the space is reduced, and the installation is more convenient.

2. The problem of a large amount of water waste before and after washing hands is avoided when the switching action is different from the washing hands in the prior art, the control valve is arranged at the water outlet of the faucet body, and the water faucet can be used after being opened, so that a large amount of water resources are saved after long-term use.

3. The cold and hot switch is adjusted at the water outlet, and the water comfort level is improved.

4. The control valve is internally reasonable in structural design, so that water flows are dispersed through spraying and polymerized through porous distribution in the water outlet process, the effects of water foaming, moderating and flowing out and no water splashing are realized, and the outer peripheral wall of the lower sleeve part can be comprehensively washed in the hand washing process because the lower sleeve part (namely the operating handle) of the operating sleeve is positioned in the middle of water outlet, so that the functions of foaming water conservation and self-flushing switch integration are realized, and the cost is also saved. The water tap using the control valve is not only suitable for public places, but also suitable for families, and the effect of preventing cross infection is improved.

5. The control valve can also adjust the flow in different steps, the steps are distinct, and a user can select the corresponding flow according to the requirement.

6. The control valve integrates the water-saving foaming flushing opening and achieves the ideal effect of saving water safely.

Example 2

Referring to fig. 7 and 8, the present embodiment is different from embodiment 1 in that: the distribution of the drainage holes on the radial wall 53 of the rotating sleeve 50 is different, wherein the first drainage holes 53a on the inner side of the first annular wall 54 have a plurality of groups which are sequentially arranged along the radial direction of the radial wall 53, so that any two adjacent thin flows collide with each other to generate bubbles in the process of discharging water through the plurality of groups of first drainage holes 53a, and the effect of the bubbler is achieved.

The arrangement of the plurality of groups of first drainage holes 53a on the rotating sleeve 50 can achieve the foaming function, and special bubbler parts do not need to be additionally arranged, so that the material cost and the assembly cost are saved.

Claims (10)

1. A self-cleaning faucet control valve comprising:

a valve body (10) which is provided with a valve cavity (100) with an opening at the lower end and a water inlet (11 a; 11b) which is positioned at the upper end and is communicated with the valve cavity (100);

the valve core component (2) is arranged in the valve cavity (100) of the valve body (10) and comprises a valve sleeve (20) and a valve core (24), the upper end of the valve sleeve (20) is provided with a water passing hole (220 a; 220b) opposite to the water inlet (11 a; 11b), the valve core (24) is integrally rod-shaped and can be rotatably arranged in the valve sleeve (20) to control the on-off of water flow at the water passing hole (220 a; 220b), the lower end of the valve core (24) is exposed out of the valve sleeve (20), a water passing hole (213) is formed in the wall of the valve sleeve (20), and a water passing flow channel (30) for communicating the water passing hole (213) with the lower end of the opening of the valve body (10) is defined between the valve sleeve (20) and the inner wall of the valve body (10);

the rotating sleeve (50) is rotatably arranged at the bottom of the valve body (10) and is linked with the lower end of the valve core (24), the rotating sleeve (50) is provided with an upper sleeve part (51) with an upper opening and capable of being sleeved outside the valve body (10) and a lower sleeve part (52) with a lower opening and a caliber smaller than that of the upper sleeve part (51), a radial wall (53) is formed between the upper sleeve part and the lower sleeve part (52), the radial wall (53) is provided with a plurality of water drainage holes (53 a; 53b) distributed at intervals along the circumferential direction, the water drainage holes (53 a; 53b) are communicated with the water passing flow channel (30), and when the valve core (24) is in an open state, water entering the water passing flow channel (30) falls down along the outer wall surface of the lower sleeve part (52) through the water drainage holes (53 a; 53 b);

the method is characterized in that: the water inlets (11 a; 11b) on the valve body (10) comprise a first water inlet (11a) used for being connected with a cold water channel of the water tap and a second water inlet (11b) used for being connected with a hot water channel of the water tap, the water through holes (220 a; 220b) are also provided with two first water through holes (220a) opposite to the first water inlet (11a) and two second water through holes (220b) opposite to the second water inlet (11b), the upper end of the valve core (24) is provided with a gap part (240) for water flow to pass through, in the rotating process of the valve core (24), at least part of the gap part (240) can be opposite to at least one of the first water passing hole (220a) and the second water passing hole (220b) to enable the control valve to be in a water passing state, and can be arranged in a staggered mode with the first water passing hole (220a) and the second water passing hole (220b) to enable the control valve to be in a water cut-off state.

2. A self-cleaning faucet control valve as recited in claim 1 wherein: the valve sleeve (20) is integrally cylindrical, the outer wall of the valve sleeve is provided with a first step portion (211) with a large upper portion and a small lower portion, the inner wall of the lower end opening of the valve body (10) is further connected with a limiting blocking piece (40) in a threaded mode, the limiting blocking piece (40) is sleeved outside the lower portion of the valve sleeve (20) and abuts against the first step portion (211) of the valve sleeve (20), the valve sleeve (20) is abutted against the inside of the valve body (10), and the upper portion of the valve sleeve (20) and the inner wall of the valve body (10) define the water passing flow channel (30) therebetween.

3. A self-cleaning faucet control valve as recited in claim 2 wherein: the upper surface of the limiting blocking piece (40) is provided with limiting bulges (41) which are arranged at intervals along the circumferential direction, and the limiting bulges (41) are abutted against the first step part (211) of the valve sleeve (20), so that a first overflowing gap (421) communicated with the water flowing channel (30) is defined between the limiting blocking piece (40) and the valve sleeve (20).

4. A self-cleaning faucet control valve as recited in claim 1 wherein: the inner wall of the valve sleeve (20) forms a stepped hole (212) with a large upper part and a small lower part, the valve core (24) is integrally columnar, the outer wall of the valve core is provided with a second stepped part (241) with a large upper part and a small lower part, the valve core (24) is arranged in the stepped hole (212) in a penetrating mode, the second stepped part (241) is abutted to the shoulder of the stepped hole (212), a blocking wall (55) is arranged in the rotating sleeve (50), an installation hole (550) which is in non-circular fit with the lower end of the valve core (24) is formed in the blocking wall (55), and a fastening piece (43) for positioning the lower sleeve part (52) on the valve core (24) is arranged at the lower end of the valve core (24) below the blocking wall (55).

5. A self-cleaning faucet control valve as recited in claim 1 wherein: the upper end of the valve sleeve (20) is abutted against the inner wall of the valve body (10), one of the valve sleeve and the valve body is provided with a positioning convex column (221), and the other valve sleeve is provided with a positioning hole (12) for the positioning convex column (221) to insert.

6. The self-cleaning faucet control valve of claim 5, wherein: valve barrel (20) include open valve barrel (20) body in upper end and connect valve gap (22) at the last port of this valve barrel (20) body with buckle (222) connected mode, have on valve gap (22) first water hole (220a) and second water hole (220b) of crossing, location projection (221) locate valve gap (22) on.

7. A self-cleaning faucet control valve as recited in claim 1 wherein: valve core subassembly (2) still include valve block (25), valve block (25) have with first cross the third water hole (251) and with the second crosses the fourth water hole (252) that the water hole (220b) is relative, the cover is equipped with annular sealing member (26) on the periphery wall of valve block (25), annular sealing member (26) with the inner wall contact of valve barrel (20), the upper end of case (24) with valve block (25) offset.

8. A self-cleaning faucet control valve as recited in claim 1 wherein: the upper end of the valve body (10) is provided with an external thread part (14) which is used for being in threaded connection with the water outlet of the water faucet.

9. A self-cleaning faucet control valve as claimed in any one of claims 1 to 8, wherein: the inner wall of the radial wall (53) of the rotating sleeve (50) also has a first annular wall (54) extending upwards, the height of the first annular wall (54) is lower than the height of the upper jacket portion (51), a first annular groove (56) is formed between the valve body and the inner wall of the upper sleeve part (51), a second annular groove (13) which extends vertically and is open at the lower part is arranged at the bottom of the valve body (10), the first annular wall (54) projects into a second annular groove (13) of the valve body (10), thereby forming a buffer flow passage between the two, two groups of the drainage holes (53 a; 53b) are respectively a first drainage hole (53a) positioned at the inner side of the first annular wall (54) and a second drainage hole (53b) positioned at the outer side of the first annular wall (54), the first drain hole (53a) and the second drain hole (53b) are communicated through the buffer flow passage.

10. A self-cleaning faucet comprising a faucet body (7) having a mounting end and a water outlet (70), characterized in that: the self-cleaning faucet control valve is characterized in that a cold water channel (71) and a hot water channel (72) extending from a mounting end to a water outlet (70) are arranged in the faucet body (7), and the self-cleaning faucet control valve as claimed in any one of claims 1-9 is arranged, the valve body (10) is connected with the water outlet (70) of the faucet body (7), the cold water channel (71) is communicated with a first water inlet (11a) of the valve body (10), and the hot water channel (72) is communicated with a second water inlet (11b) of the valve body (10).

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