CN112576783B - Switching stop valve for faucet and faucet - Google Patents

Abstract

The invention relates to a switching stop valve for a faucet, characterized in that the switching stop valve comprises: a valve housing; a valve inlet; a plurality of valve outlets; a static valve plate; a movable valve plate; the movable valve plate is configured to rotate relative to the stationary valve plate, such rotation causing the movable valve plate outlet to align with a different one of the plurality of stationary valve plate outlets such that water flows out of the switching stop valve via the different valve outlets; the pressing control assembly is configured to be capable of communicating or cutting off a water path inside the switching stop valve when being pressed by a user so as to open or close the switching stop valve, wherein the pressing control assembly can drive the movable valve plate to rotate. By means of the switching stop valve, the pressing control assembly can be operated to communicate or switch the valve and select the water outlet of the valve. The invention also relates to a water tap comprising such a switching stop valve.

Description

Switching stop valve for faucet and faucet

Technical Field

The invention relates to a switching stop valve for a water faucet, which can realize the control of the opening and closing of the switching stop valve through pressing and the control of the water outlet direction of the valve through rotating. The invention further relates to a water tap comprising such a switching shut-off valve.

Background

In daily life, the water faucet is a valve switch used for controlling the water flow, and has the effect of saving water. Most of water taps are generally provided with only one water outlet, so that the defect of single water outlet function exists. One or more water outlets can be additionally designed on the improved water outlet pipe according to needs so as to provide the water outlet effect of the multifunctional water and meet different use requirements.

In the bathroom industry, the switching valve is mostly adopted by the existing faucet to complete the water outlet switching among different water outlets. For example, the faucet can adopt a rotary switching mode to switch the flow paths of different water outlets. At the same time, the faucet must also be able to open and close the switch valve to control whether water flows out of the switch valve and thus out of the faucet.

The existing switching valve mainly comprises a valve rod, a shell, a movable ceramic chip, a static ceramic chip and a base. When the water outlet of the rotary movable ceramic chip is superposed with the water outlet of the static ceramic chip, water can flow out of the water outlet. And rotating the movable ceramic chip again, wherein the water outlet of the movable ceramic chip is not overlapped with the water outlet of the static ceramic chip, and closing the water outlet, thereby turning off the water outlet. Simultaneously, still realize following function circulation through rotatory valve rod: the first water outlet is discharged with water Guan Duanshui, the second water outlet is discharged with water, the water is cut off, the third water outlet is discharged with water Guan Duanshui, and the first water outlet is discharged with water.

It can be seen that, due to the structural characteristics of the existing switching valve, the switching waterway and the opening and closing waterway both use a rotary operation mode, on one hand, the misoperation is easy to occur, and on the other hand, the closing and opening conditions are unstable due to the fact that the action of closing the waterway occurs among all actions of rotating the switching waterway.

In addition, there is a switching valve that is opened and closed by pressing, but the pressing of the switching valve may be difficult (for example, it may be necessary to cut off the high-pressure water path to the outlet of the bathtub with difficulty), and the switching function may be easily disabled at a low water pressure (for example, the switching valve may not be stably maintained in place for a long time due to a low water pressure).

In addition, another switching valve which is opened and closed by pressing exists in the prior art, and the switching valve adopts a plurality of buttons to control the switch of the switching valve according to different water outlet paths. However, such a switching valve is complicated to operate and is not good for the user.

To this end, there is always a need for a switching stop valve for a faucet that is stable in switching, convenient to operate, and simple in structure for the field of sanitary appliances, particularly faucets.

Disclosure of Invention

To this end, the present invention relates to a switching cut-off valve for a faucet, which may include: a valve housing; a valve inlet; a plurality of valve outlets; a static valve plate; a movable valve plate; the movable valve plate is configured to rotate relative to the stationary valve plate, such rotation causing the movable valve plate outlet to align with a different one of the plurality of stationary valve plate outlets such that water flows out of the switching stop valve via the different valve outlets; the pressing control assembly can be configured to be capable of communicating or cutting off a water path inside the switching stop valve when being pressed by a user so as to open or close the switching stop valve, wherein the pressing control assembly can drive the movable valve plate to rotate.

The switching stop valve of the invention has only one valve water inlet, but provides a plurality of valve water outlets for users to select and use according to the needs. With the help of this switching stop valve, can realize that the user operation presses the control assembly and can communicate or switch this switching stop valve through the mode of pressing, can also select required valve delivery port simultaneously through rotatory moving valve piece.

Advantageously, the pressing control assembly may include a rotation operating portion, and the rotation operating portion may drive the movable valve plate to rotate. By means of the rotary operating part, a user can conveniently control the rotation of the movable valve plate and switch the water outlet of the valve in a labor-saving manner.

Preferably, the switching shutoff valve may further include a valve seat disposed above the movable valve plate and non-rotatably connected to the movable valve plate, wherein rotation of the rotation operation part is transmitted to the movable valve plate via the valve seat connected thereto.

The rotary motion of the user can also be easily transmitted to the movable valve plate by means of the valve seat structure that contributes to the pressing function of the pressing control assembly itself. Thus, two actions can be accomplished with the same component, thereby saving space within the valve.

In a particularly advantageous embodiment, the moving valve plate can be arranged above the stationary valve plate, so that water flows in from the stationary valve plate inlet, past the moving valve plate and flows out of the switching shut-off valve in turn via the moving valve plate outlet and the stationary valve plate outlet.

In this case, the switching shutoff valve has a compact interior, and water can flow into the pressure chamber bypassing the movable valve plate and, if necessary, via the rotating movable valve plate, determine from which of the stationary valve plate outlets the water directly flows out of the valve outlet.

Preferably, the pressing control assembly is configured to be capable of communicating or cutting off a waterway leading from the upper side of the driven valve plate to the outlet of the driven valve plate when pressed by a user. Through the mode of pressing, the user is light and accomplish the break-make to the switching stop valve easily, and can not have and rotate great angle just can turn off the switching stop valve or lead to shutting off the problem of inefficacy because of the rotation resistance.

In some embodiments, the pressure control assembly is controllable by a user to move between a first switch position and a second switch position, wherein the pressure control assembly is capable of connecting or disconnecting the waterway in response to a change in water pressure when the pressure control assembly switches between the first switch position and the second switch position.

Since the final connection or disconnection of the waterway is achieved by the change of the water pressure, various problems caused by the direct pressing element acting on the connection or disconnection of the waterway, such as incapability of keeping in place or capability of conducting the waterway with too much force, can be eliminated.

In particular, a water passage opening may be formed in the valve seat through which water can flow to the movable valve plate outlet, and the pressing control assembly may include a water passage opening blocking member movable between a blocking position closing the water passage opening and a non-blocking position opening the water passage opening in response to a change in water pressure applied thereto to communicate or shut off the water path.

By means of the cooperation between the water passage blocking element and the water passage, reliable cut-off or communication of the switching shutoff valve under various water pressure conditions can be easily achieved.

In particular, a pressure chamber may be formed above the spout blocking element, the spout blocking element being configured to move between a blocking position and a non-blocking position in response to a change in the amount of water within the pressure chamber. The generation of different water pressures acting on the water passage blocking element by means of the variation of the amount of water in the pressure chamber is compact and very reliable, in particular very responsive.

In addition, a water discharge hole may be provided on the water passing hole blocking member, and the pressing control assembly further includes: a pressing operation part which can be directly pressed by a user; and a valve rod, wherein the pressing operation part can drive the valve rod to move between a sealing position and a non-sealing position, wherein in the sealing position, water is accumulated in the pressure cavity to enable the water pressure to be exerted on the water passing opening blocking element and enable the water passing opening blocking element to be in a blocking position, and in the non-sealing position, the water can flow out of the pressure cavity through the water discharge hole to enable the water passing opening blocking element to be in a non-blocking position.

By means of the valve rod directly associated with or integrated with the pressing operation portion, the movement of the passage nozzle blocking element based on the change of the water pressure in the pressure chamber can be realized in a compact structure.

Advantageously, the valve stem may be provided with a drain recess at its lower part, on which the first sealing ring is arranged on the water passage blocking element, wherein in the non-sealing position the drain recess is moved into the position of the first sealing ring.

By means of the matching between the first sealing ring and the drainage notch, whether water in the pressure cavity flows out through the drainage hole or not can be effectively conducted or cut off, and therefore the response time is short and the action is reliable.

In a particularly advantageous embodiment, the rotary operating part can be arranged around the press operating part. Therefore, the two operations of pressing and rotating do not interfere with each other, and the user can perform the two operations at close positions, which is convenient to use and compact.

In addition, the plurality of stationary vane outlets and the stationary vane inlets may be arranged to be evenly spaced apart from each other in a circumferential direction of the stationary vane. Additionally or alternatively, the movable valve plate outlet can extend through the movable valve plate in an inclined manner away from the center of the movable valve plate.

From this, quiet valve plate export and import and moving valve plate export can be multiple setting mode to provide the convenience of manufacturing, maintenance and installation, improve the efficiency when the water current passes through simultaneously.

Preferably, the switching cut-off valve may further include a valve seat below the valve housing, the valve inlet and the valve outlet are formed on the valve seat, and/or the valve inlet is formed on a side of the valve housing. From this, can provide the valve water inlet and the valve delivery port multiple setting possibility on switching the stop valve, be favorable to increasing user's setting option, satisfy multi-functional demand.

The invention also relates to a water tap comprising such a switching stop valve, wherein the valve outlets communicate with respective outlets of the water tap, wherein the water tap is capable of allowing or blocking water flow out therefrom by pressing the switching stop valve, and wherein water flow out of different outlets of the water tap is enabled by rotating the switching stop valve.

It will be appreciated that with such a tap, a user can conveniently effect the closing and opening of the tap by a push operation and the flow of water from the various outlets by a rotary operation.

Drawings

It should be noted that the drawings referred to are not all drawn to scale but may be exaggerated to illustrate aspects of the present invention, and in this regard, the drawings should not be construed as limiting.

FIG. 1A illustrates a front view of a switching stop valve according to one embodiment of the present invention;

fig. 1B exemplarily shows a side view of the switching cut valve according to the embodiment of fig. 1;

fig. 1C exemplarily shows a top view of the switching shutoff valve according to the embodiment of fig. 1;

fig. 1D exemplarily shows a bottom view of the switching cut-off valve according to the embodiment of fig. 1, wherein a valve water inlet and a valve water outlet of the switching cut-off valve are shown;

FIG. 1E illustratively shows a perspective view of a switching shutoff valve according to the embodiment of FIG. 1;

fig. 2 is an exploded view schematically illustrating an internal structure of the switching cut-off valve according to an embodiment of the present invention, in which one stationary valve sheet inlet and three stationary valve sheet outlets of the stationary valve sheet and one movable valve sheet outlet of the movable valve sheet are shown;

fig. 3 is an exploded perspective view exemplarily showing each component part of the switching cut valve according to one embodiment of the present invention;

fig. 4 shows a longitudinal section through a switching shut-off valve according to an embodiment of the invention;

fig. 5 shows a longitudinal section through the switching cut-off valve in the closed state according to the embodiment of fig. 4 by way of example; and

fig. 6 shows a longitudinal section through the switching shutoff valve in the open state according to the exemplary embodiment of fig. 4.

List of reference numerals:

100. switching a stop valve;

110. a valve housing;

120. a valve water inlet;

130. a valve outlet;

142. a static valve plate;

143. a static valve plate inlet;

144. a static valve plate outlet;

145. a gap;

146. a movable valve plate;

148. an outlet of the movable valve plate;

149. a groove;

150. a valve seat;

151. a convex portion;

152. water passing holes;

153. a pressure chamber;

154. a guide groove;

161. a pressing operation part;

162. a flow-through port blocking element;

163a drain hole;

163b water inlet aperture;

164. a cam;

165. a valve stem;

165a drainage notch;

166. a return spring;

167. a rotation operation part;

168. a guide rail;

169. a valve cover;

170. a first seal ring.

Detailed Description

Although the switching cut-off valve of the present invention is referred to as a switching cut-off valve for a faucet, it should be noted that the switching cut-off valve can be applied also in other structures similar to a faucet. For example, the switching shutoff valve of the present invention may be integrated into or disposed within other types of kitchen and toilet fixtures, such as showers, toilets, and the like. Preferably, the switching shut-off valve of the present invention is applied to a faucet of a bathtub (or other shower faucet without a bathtub).

First, the switching cut valve 100 of the present invention may include a valve housing 110. It will be appreciated that the valve housing may include an internal cavity therein which may contain and provide for the flow of fluid. The term "fluid" here primarily refers to water, for example tap water, but may also refer to other media.

Second, the switching cutoff valve 100 may include a valve inlet 120 (typically one) and a plurality of valve outlets 130, such as first, second, third, or even more outlets. In this case, different water outlets which are independent of one another are indicated by different numbers. Preferably, the valve water inlet 120 and/or at least one of the plurality of valve water outlets 130 may be arranged at a side of the switching cut-off valve 100, but may also be arranged at a bottom of the switching cut-off valve 100. Of course, other various arrangements of the valve water inlet 120 and water outlet can also be designed according to the specific application of the switching stop valve 100 (e.g., two water outlets are arranged at the top and bottom of the switching stop valve 100 generally opposite to each other).

It should be noted that the above-mentioned "valve inlet" and "valve outlet" of the switching cut-off valve 100 of the present invention refer to an opening formed by the switching cut-off valve through which a fluid, such as water, flows in and out, and do not refer to the inlet and outlet of a faucet in which the switching cut-off valve 100 is installed. The water inlet of the faucet may be communicated to the valve water inlet 120 of the switching cut-off valve 100 through the water inlet channel inside the faucet so that water flows into the switching cut-off valve 100, and the water outlet of the faucet (not shown) may be communicated to the water outlet of the switching cut-off valve 100 through the water outlet channel inside the faucet so that water flows out of the faucet from the switching cut-off valve 100 for use by a user.

It should be noted that, in the present invention, both the "(valve) inlet" and the "(static valve plate) inlet" indicate that the water flow is in-flowing, i.e. towards the inside of the switching cut-off valve 100 or away from the valve inlet, and both the "(valve) outlet" and the "(static/dynamic valve plate) outlet" indicate that the water flow is out-flowing, i.e. towards the outside of the switching cut-off valve 100 or towards the valve outlet 130.

Further, the switching cutoff valve 100 of the present invention is not provided with a plurality of valve inlets 120 dedicated to the inflow of cold water and the inflow of hot water, respectively, but is provided with only one valve inlet 120, but the present invention does not exclude that the water flowing into the valve inlets is water previously temperature-regulated, which may be generally realized by a water temperature regulating mechanism inside a faucet or outside the faucet. In addition, the switching shutoff valve 100 of the present invention does not require a user to control the on/off of the valve outlets 130 (i.e., multiple outlets) separately.

In a preferred embodiment, the switching cutoff valve 100 may further include a valve seat located below the valve housing 110. The valve inlet 120 and the valve outlet 130 may be formed on the valve base. Alternatively, the valve inlet 120 may also be formed on the side of the valve housing 110. Alternatively, a portion of the plurality of valve outlets 130 is formed on the valve base and a portion is formed on the side of the valve housing 110, resulting in the plurality of valve outlets 130 not being disposed on the same plane, e.g., disposed perpendicular to each other.

In order to allow a user to control the flow of water out of the various valve outlets 130 of the switching stop valve 100, the switching stop valve 100 of the present invention is provided with a static valve plate 142 and a dynamic valve plate 146, which may be in the form of a dynamic ceramic plate and a static ceramic plate. Static valve plate 142 and dynamic valve plate 146 may rotate relative to each other. Generally, static plate 142 is stationary, while dynamic plate 146 is rotationally movable relative to static plate 142. The diameters of the static and dynamic plates 142, 146 are preferably substantially equivalent, but may be different.

According to the present invention, the static valve sheet 142 may include a static valve sheet inlet 143 and a plurality of static valve sheet outlets 144, the position of the static valve sheet inlet 143 corresponds to the position of the valve inlet 120, and the positions of the plurality of static valve sheet outlets 144 correspond to the positions of the plurality of valve outlets 130 of the switching stop valve 100, respectively. The number of the stationary vane outlets 144 shown in the various figures of the present disclosure is merely exemplary and may be, for example, two, three, four, five, or more.

The movable valve plate 146 and the stationary valve plate 142 may be arranged to overlap each other. The dynamic valve plate 146 may include a dynamic valve plate outlet 148 therethrough, preferably only one dynamic valve plate outlet 148. Here, the term "through" means that the static sheet inlet 143, the static sheet outlet 144, and the dynamic sheet outlet 148 are openings that are kept open, rather than the blind holes on the static sheet 142 and the dynamic sheet 146, because water is to flow through the static sheet 142 and the dynamic sheet 146 via the static sheet inlet 143, the static sheet outlet 144, and the dynamic sheet outlet 148. Such through inlets and outlets may therefore also be referred to as water flow holes.

More preferably, the movable valve plate 146 has only a movable valve plate outlet 148, and need not have a movable valve plate inlet, but this is not required. When the movable valve plate 146 does not have a movable valve plate inlet, water can flow through the movable valve plate 146 via the gap 145 between the movable valve plate 146 and the valve housing 110, i.e., through the outer periphery of the movable valve plate 146. When the movable valve sheet 146 has a movable valve sheet inlet, water may flow in from the movable valve sheet inlet. In either case, however, water may flow from the flap outlet 148 in a direction toward the valve outlet 130.

As exemplarily shown in fig. 4, the movable valve plate outlet 148 may extend through the movable valve plate 146 in a manner of deviating from the center of the movable valve plate 146 (if the movable valve plate is a circular plate, it is a circle center) and extending obliquely. For example, the movable valve sheet outlet 148 is inclined when viewed from the upper surface to the lower surface of the movable valve sheet 146. Even more, the moving-valve sheet outlet 148 may not be linearly extended, but be bent extended, zigzag extended, or the like. The movable vane outlet 148 can take on a variety of shapes as long as the design of the movable vane outlet 148 does not affect the efficiency of the water flowing through it.

It will be appreciated that water may flow from dynamic valve plate 146 to static valve plate 142 or vice versa when dynamic valve plate 146 and static valve plate 142 are rotated relative to each other until dynamic valve plate outlet 148 is substantially aligned with one of the plurality of static valve plate outlets 144. Since the rotating movable plate 146 can cause water to flow out of the switching stop valve 100 from different stationary plate outlets 144, a faucet in which the switching stop valve 100 is installed can discharge water from different outlets to meet various water demands of a user (e.g., water flowing into a bathtub, flowing into a hand shower, flowing into a roof shower, etc.).

Advantageously, but not necessarily, the movable vane 146 is located above the stationary vane 142 and the valve outlet 130 is located below the stationary vane 142. If the static valve plate 142 is disposed above the dynamic valve plate 146, the water flow entering through the inlet of the valve firstly bypasses the periphery of the dynamic valve plate 146 to reach the static valve plate inlet of the static valve plate, because the dynamic valve plate 146 may not have an inlet.

Normally, there is no other water passing element between the movable valve plate 146 and the fixed valve plate 142, but the two are directly adjacent to each other, but this is not necessary. For example, the lower surface of the movable valve plate 146 directly contacts the upper surface of the stationary valve plate 142. In the present invention, the rotation between the dynamic valve plate 146 and the static valve plate 142 may be considered substantially unimpeded, but the provision of additional resistance varying structures to enhance the user's feel is not precluded.

In order to accomplish the opening or closing of the switching cut valve 100, the switching cut valve 100 according to the present invention may include a pressing control assembly for enabling the communication or the cut-off of the water path inside the switching cut valve 100 when pressed by a user. As described above, the switching shutoff valve 100 of the present invention only needs one pressing control component for the water outlet through each different valve outlet 130, or the user only needs to press the same pressing control component to complete the switching shutoff valve 100.

The push control assembly can be controlled, in particular directly manipulated, by a user to move between two switching positions, i.e. a first switching position and a second switching position. It is to be understood that the terms "first" and "second" herein merely indicate that the respective handover positions are different, and do not indicate the priorities thereof or whether they are default positions.

The switching shutoff valves of the prior art typically open or close the water outlet directly by pressing a switch device, rather than relying on the response of the acting component to the water pressure. In order to solve the problems of the prior art that the switching action is hard and/or greatly influenced by the water pressure in the direct switching operation, the pressing control assembly of the present invention can connect or cut off the water path inside the switching cut-off valve 100 in response to the change of the water pressure.

More specifically, what the press control assembly can communicate or shut off is the water flow path to the movable valve plate outlet 148 of the movable valve plate 146. The switching shutoff valve 100 of the present invention may include a valve seat 150 (which may also be referred to as or form a part of a valve housing) disposed above the movable valve plate 146. In order to cut off the water path to movable valve plate outlet 148, a water passage opening 152 may be formed in valve seat 150, and water may flow to movable valve plate outlet 148 through water passage opening 152. As long as the opening/closing of the water discharge opening 152 can be controlled, the opening/closing of the water flow path to the movable valve sheet outlet 148 of the movable valve sheet 146 can be easily controlled. Of course, the present invention does not exclude the provision of blocking structures on other water flow paths.

To this end, the push control assembly of the present invention may include a spout blocking member 162, the spout blocking member 162 being movable between a blocking position closing the spout 152 (e.g., a position in which the spout blocking member 162 abuts the valve seat 150) and a non-blocking position opening the spout 152 (e.g., a position in which the spout blocking member 162 is spaced away from the valve seat 150) in response to a change in water pressure applied thereto to communicate or shut off the aforementioned waterway.

Above the water passage blocking element 162, there may be generally formed a pressure chamber 153, which pressure chamber 153 may be formed by the structure of the push control assembly itself and/or the valve housing 110. The water inlet blocking member 162 is generally provided with a water inlet aperture 163b through which water flowing into the switching cutoff valve 100 can flow into the pressure chamber 153. It is contemplated that water may flow into the pressure chamber 153 via water inlet apertures 163b of other configurations. The water port blocking member 162 may be configured to move between the aforementioned blocking position and the non-blocking position in response to a change in the amount of water within the pressure chamber 153.

A drain hole 163a may be formed on the water outlet blocking member 162, and the drain hole 163a may drain the water in the pressure chamber 153. In fact, the opening and closing of the drain hole 163a causes the displacement of the water passage blocking member 162. And the opening and closing of the water discharge hole 163a can be realized by pressing the valve rod 165 of the control assembly to cooperate with the first sealing ring 170. The first seal ring 170 is disposed on the spout blocking member 162. As shown in fig. 4-6, the first seal 170 is preferably positioned above the drain hole 163 a. It is understood that other sealing rings arranged around the valve stem 165 or sealing rings for sealing other components may be provided inside the switching shutoff valve.

The valve stem 165 of the present invention is movable between a sealing position blocking the drain hole 163a and a non-sealing position unblocking the drain hole 163 a. The valve stem 165 is provided with a drain recess 165a (e.g., at a lower portion thereof). A first seal 170 may be provided at or near the location of drain hole 163 a. In the sealing position, the first seal 170 is a tight fit with the surface of the valve stem 165, causing the drain hole 163a to be blocked. Due to the blocking of the drain hole 163a, water entering through the inlet orifice 163b may accumulate within the pressure chamber 153 such that a water pressure (static pressure) is exerted on the nozzle blocking member 162, thereby causing the nozzle blocking member 162 to press tightly against the valve seat 150 (e.g., static pressure is greater than the dynamic pressure of the incoming water flow acting on the nozzle blocking member). Thereby leaving the spout blocking member 162 in the blocking position and the spout 152 unopenable. In the non-sealing position, the drain recess 165a of the stem 165 moves to the position where the first seal ring 170 is located, i.e., there is a gap between the surface (outer circumferential surface) of the stem 165 and the first seal ring 170, and water can be guided out through the gap. This corresponds to the passage of the drain hole 163a, so that water can flow out of the pressure chamber 153 through the drain hole 163a, resulting in a pressure drop in the pressure chamber 153, and the water passing port blocking member 162 moves upward away from the valve seat 150 under the action of the water pressure (dynamic pressure) of the incoming water flow, thereby opening the water passing port 152 and being in the non-blocking position.

More specifically, the drain recess 165a on the valve stem 165 may be provided along a circle of the circumference thereof, but may be provided along only a portion of the circumference of the valve stem 165. The drain recess 165a may also extend a distance in the axial direction of the valve stem 165. However, regardless of the form or shape of the drain recess 165a, the drain recess 165a should be provided on the valve stem 165 such that: when it is aligned with the first seal ring 170 (and in some cases the drain hole 163 a), the space (clearance) formed between the first seal ring 170 and the drain recess 165a is sufficient for water to flow from the space out of the pressure chamber 153. It should be noted that in the case of water inlet apertures 163b, the size of the drain holes 163a should be larger, and particularly significantly larger, than the size of the water inlet apertures 163b so that the amount of water exiting the pressure chamber 153 can always be larger than the amount of water entering the pressure chamber 153

The valve rod 165 is moved up and down by the pressing operation part 161 of the pressing control unit. The pressing operation portion 161 (for example, in the form of a button) can be directly pressed by the user, and is therefore located in a position accessible to the user from the outside in the switching stop valve 100.

In general, it is preferable that the up-and-down movement (manipulation by the user) of the pressing operation portion 161 of the present invention is not directly linked to the movement (e.g., up-and-down movement) of the water outlet blocking member 162, but the movement of the pressing operation portion 161 causes a change in the water pressure applied to the water outlet blocking member 162 to move the latter. The present invention does not exclude that the pressing operation part 161 can be directly moved up and down to move the water inlet blocking element 162 up and down.

In some preferred embodiments, the pressing control assembly of the present invention may further include a cam 164, a return spring 166, a valve housing (having a cylindrical shape, the bottom of which may be used as the valve seat 150), a guide rail 168, a valve cap 169, a valve stem 165, a first sealing ring 170, a diaphragm (which may be used as the outlet blocking member 162), and the like, in addition to the pressing operation part 161. The housing has a guide channel 154 for a cam 164 and has upper and lower two positioning elements (not shown).

When the user presses the button, the cam 164 will move downward in the guide groove 154 of the valve housing and rotate, and when the button is released, the cam 164 will bring the valve stem 165 to a high limit position of the valve housing defined by the upper positioning member under the elastic force of the return spring 166. When the user presses the button again, the cam 164 will likewise move downwardly in the guide channel 154 of the valve housing and rotate, but when the button is released, the cam 164 will bring the valve stem 165 to a low limit position of the valve housing defined by the lower positioning member under the influence of the spring force of the return spring 166.

The high limit position of the valve stem 165 actually corresponds to the aforementioned unsealed position of the valve stem 165 (also the first switching position of the pressing member), while the low limit position of the valve stem 165 corresponds to the aforementioned sealed position of the valve stem 165 (also the second switching position of the pressing member). It is to be understood that the connection between the pressing operation portion 161 and the valve stem 165 in the preferred embodiments may be implemented in various other ways. For example, the pressing control member may be a ball-point pen type bouncing structure. In other words, any suitable structure that allows the user to manipulate the pressing operation portion 161 to bring the valve rod 165 into the sealing position or the non-sealing position is within the scope of the present invention.

In the present invention, the switching cut-off valve 100 may also be provided with a structure that can rotate the movable valve plate 146. In a preferred embodiment, the pressing control assembly may be provided with a rotating operation portion 167, particularly a rotating operation portion 167 separate from the pressing operation portion 161 (but both may be integrally formed). When the pressing operation portion 161 and the rotation operation portion 167 of the pressing control assembly are provided as separate two parts, the rotation operation portion 167 is preferably arranged around the pressing operation portion 161, and for example, a button may be provided inside the rotation operation portion 167 (for example, in a cylindrical configuration). Further, the pressing operation of the button operation portion and the rotating operation of the rotating operation portion 167 are not related to each other but independent from each other, but this is only a preferable embodiment.

When the valve seat 150 engages, e.g., positively engages, the movable valve plate 146, the valve seat 150 can rotate the movable valve plate 146. The rotation operation portion 167 may be connected to the valve seat 150, so that the rotation of the rotation operation portion 167 may be converted into the rotation of the valve seat 150, and further, the movable valve sheet 146 may be rotated.

The rotary actuator 167 may be directly connected to the valve seat 150, but may also include an intermediate transmission element. The rotation operating portion 167 may also be formed integrally with the valve seat 150, and/or the valve seat 150 may be formed integrally with the movable valve plate 146. In any case, it is ensured that the rotation of the rotating operation portion 167 can eventually drive the rotation of the movable valve plate 146. It is particularly preferable that the rotation operation portion 167 and the movable valve plate 146 do not rotate relatively. For example, there is no relative rotation between the rotating operation portion 167, the valve seat 150, and the movable valve plate 146. Alternatively, the rotation operating portion 167 and the movable valve plate 146 may be rotated relatively, but the former is still ensured to drive the latter to rotate. For example, the rotation angle of the rotation operating portion 167 and the rotation angle of the movable valve plate 146 may not be equal. However, it should be understood that the present invention is not limited to the transmission of rotation through the base, and for example, the rotation of the movable valve plate 146 may be directly driven by the rotation operating portion 167, or the rotation of the movable valve plate 146 may be driven via a transmission element without the base.

Next, the flow conditions of the internal water in the open and closed states of the switching stop valve 100 of the present invention will be explained with the aid of the embodiment shown in fig. 4 to 6.

As shown in FIG. 5, the moving valve plate 146 has rotated to a position such that its moving valve plate outlet 148 is aligned with one of the plurality of stationary valve plate outlets 144. Since the stationary blade inlet 143 is aligned with the valve inlet 120 and the stationary blade outlet 144 is aligned with the valve outlet 130, water flows from the valve inlet 120 into the switching cut valve 100 via the stationary blade inlet 143. The gap 145 between the perimeter of the incoming water driven blade 146 and the valve housing 110 continues to flow upward.

At this time, since the valve rod 165 is in a sealing position blocking the drain hole 163a of the nozzle blocking member 162 (the drain recess 165a thereof is not aligned with the first seal ring 170 or the drain hole 163 a), water flowing into the pressure chamber 153 through the water inlet small hole 163b is accumulated therein, so that the nozzle blocking member 162 abuts against the valve seat 150, and water in the pressure chamber 153 is not drained. Since the water gap blocking member 162 abuts against the valve seat 150, water cannot flow to the movable valve sheet outlet 148 of the movable valve sheet 146 through the water discharge hole 163a of the water gap blocking member 162. In other words, in this case, the water path inside the switching shutoff valve 100, mainly the water path leading to the movable valve sheet outlet 148, is shut off. Therefore, no water can flow out from the valve outlet 130, and the switching cutoff valve 100 is in the closed state.

As shown in fig. 6, when the user presses the pressing operation part 161 (e.g., a button), the valve rod 165 moves to a non-sealing position (the drain recess 165a thereof is aligned with the first seal ring 170 or the drain hole 163 a) not blocking the first seal ring 170 or the drain hole 163a on the water gap blocking member 162, whereby water inside the pressure chamber 153 can be drained through the drain hole 163a (although water is still being fed into the pressure chamber 153 through the water inlet hole 163b, the amount of water drained through the drain hole 163a is significantly larger). Accordingly, the water pressure of the pressure chamber 153 to the water passage blocking member 162 is lowered, and the water passage blocking member 162 starts to move upward away from the valve seat 150, whereby the water passage opening 152 is opened. At this time, water flowing in through the gap 145 between the circumference of the moving blade 146 and the valve housing 110 may flow to the moving blade outlet 148 through the valve seat 150, and then sequentially flow out of the switching cut valve 100 through the stationary blade outlet 144 aligned with the moving blade outlet 148 and the valve outlet 130. That is, the switching cutoff valve 100 at this time is in an open state.

When the switching stop valve 100 needs to be closed again, the user only needs to press the pressing operation portion 161 again (i.e., the valve rod 165 is returned to the position blocking the first seal ring 170 or the drain hole 163a on the nozzle blocking member 162).

If the user wants to switch the water discharge direction, the user only needs to rotate the rotation operation portion 167 of the pressing control unit. The rotating operator 167 rotates the valve seat 150, and the valve seat 150 is engaged with the movable vane 146, so that the rotating operator 167 rotates the movable vane 146 to rotate the movable vane outlet 148 to a new position aligned with the desired stationary vane outlet 144.

As best shown in fig. 2, movable valve plate 146 may be provided with one or more grooves 149 on its perimeter, and the base may be provided with one or more protrusions on its perimeter at locations corresponding to grooves 149 of movable valve plate 146. The protrusion of the base can snap into a groove 149 of the movable valve plate 146 (complete shape matching is not required) so that rotation of the base can cause rotation of the movable valve plate 146 (in this embodiment, there is no relative rotation between the base and the movable valve plate 146). The shapes of the recess 149 and the projection 151 are not limited and may be any suitable shapes that can engage with each other. As described above, the rotation of the rotation operation part 167 may be transmitted to the base via various known means, which will not be described herein.

Although various embodiments of the present invention are described in the drawings with reference to embodiments of a switching shutoff valve for a faucet, it should be understood that embodiments within the scope of the present invention are applicable to other plumbing fixture devices having similar structures and/or functions other than a faucet, such as toilets, urinals, showers, etc.

The foregoing description has set forth numerous features and advantages, including various alternative embodiments, as well as details of the structure and function of the devices and methods. The intent herein is to be exemplary and not exhaustive or limiting.

It will be obvious to those skilled in the art that various modifications may be made, especially in matters of structure, materials, elements, components, shape, size and arrangement of parts including combinations of these aspects within the principles described herein, as indicated by the broad, general meaning of the terms in which the appended claims are expressed. To the extent that such various modifications do not depart from the spirit and scope of the appended claims, they are intended to be included therein as well.

Claims (10)

1. A switching stop valve for a tap, characterized in that said switching stop valve (100) comprises:

a valve housing (110);

a valve inlet (120) from which water flows;

a plurality of valve outlets (130) from one of which water flows out;

the static valve plate (142) comprises a through static valve plate inlet (143) and a plurality of through static valve plate outlets (144), the position of the static valve plate inlet (143) corresponds to the position of the valve water inlet (120), and the positions of the static valve plate outlets (144) respectively correspond to the positions of the valve water outlets (130) of the switching stop valve (100);

the movable valve plate (146) and the static valve plate (142) are arranged to be overlapped up and down, and the movable valve plate (146) comprises a through movable valve plate outlet (148);

wherein the dynamic vane (146) is configured to rotate relative to the static vane (142), such rotation causing the dynamic vane outlet (148) to be alignable with different ones (144) of the plurality of static vane outlets (144) to cause water to flow out of the switching stop valve (100) via different valve outlet openings (130);

a pressing control component which is configured to be capable of communicating or cutting off a water path inside the switching stop valve (100) when pressed by a user so as to open or close the switching stop valve (100), wherein the pressing control component can drive the movable valve plate (146) to rotate;

a valve seat (150), wherein a water passing opening (152) is formed on the valve seat (150), water can flow to the movable valve plate outlet (148) through the water passing opening (152),

wherein the pressing control assembly comprises a passage nozzle blocking element (162) above which a pressure chamber (153) is formed, the passage nozzle blocking element (162) being configured to be movable between a blocking position closing the passage nozzle (152) and a non-blocking position opening the passage nozzle (152) according to a variation of the amount of water in the pressure chamber (153) to communicate or shut off the water path, a drain hole (163 a) being provided on the passage nozzle blocking element (162),

wherein the press control assembly further comprises:

a pressing operation part (161) which can be directly pressed by a user;

a valve rod (165), the pressing operation part (161) being capable of moving the valve rod (165) between a sealing position and a non-sealing position, wherein in the sealing position water is accumulated in the pressure chamber (153) so that water pressure is applied to the water passing opening blocking element (162) and the water passing opening blocking element (162) is in the blocking position, and in the non-sealing position water is capable of flowing out of the pressure chamber (153) through the water discharge hole (163 a) so that the water passing opening blocking element (162) is in the non-blocking position,

wherein the valve stem (165) is provided with a drainage notch (165 a) at its lower part, a first sealing ring (170) being arranged on the excess nozzle blocking element (162), wherein in the non-sealing position the drainage notch (165 a) is moved to the position of the first sealing ring (170); and

wherein the valve inlet (120) is formed on a valve seat located below the valve housing (110), and water flowing in from the valve inlet can flow upward from a gap (145) between the periphery of the movable valve plate (146) and the valve housing.

2. The switching cutoff valve for faucet of claim 1, wherein the pressing control assembly comprises a rotation operation part (167), and the rotation operation part (167) drives the movable valve plate to rotate.

3. The switching cutoff valve for faucet according to claim 2, wherein the valve seat (150) is arranged above the movable valve plate (146) and is non-rotatably connected with the movable valve plate (146), wherein the rotation of the rotational operation part (167) is transmitted to the movable valve plate (146) via the valve seat (150) connected therewith.

4. The switching stop valve for a faucet of claim 3, wherein the dynamic vane (146) is arranged above the static vane (142) such that water flows in from the static vane inlet (143), through the dynamic vane (146) and out of the switching stop valve (100) via the dynamic vane outlet (148) and the static vane outlet (144) in sequence.

5. The switching shutoff valve for a faucet of claim 4, wherein said push control assembly is configured to enable or disable a water path from above said movable flap (146) to said movable flap outlet (148) when pushed by a user.

6. The switching shutoff valve for a faucet of claim 5, wherein said push control assembly is controllable by a user to move between a first switching position and a second switching position, wherein said push control assembly is capable of connecting or disconnecting said waterway in response to a change in water pressure when said push control assembly switches between said first switching position and said second switching position.

7. The switching cutoff valve for faucet according to claim 2, wherein the rotation operation portion (167) is disposed around the pressing operation portion (161).

8. The switching cutoff valve for faucet of any one of claims 1 to 7, wherein the plurality of stationary vane outlets (144) and the stationary vane inlets (143) are arranged to be spaced apart from each other uniformly along a circumference of the stationary vane (142), and/or the movable vane outlet (148) penetrates the movable vane (146) in such a manner as to extend obliquely away from a center of the movable vane (146).

9. The switching cutoff valve for water faucet of any one of claims 1-7, characterized in that the valve outlet (130) is formed on the valve base.

10. A water tap, characterized in that it comprises a switching shut-off valve (100) for a water tap according to any one of claims 1-9, said valve outlets (130) being in communication with respective outlets of said water tap, respectively, wherein said water tap is capable of allowing or blocking the flow of water therefrom by pressing of said switching shut-off valve (100) and of enabling the flow of water from different outlets of said water tap by rotating of said switching shut-off valve (100).

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