CN117605848B - Water-saving valve and water outlet device - Google Patents

Abstract

The invention relates to the field of bathroom equipment, and discloses a water-saving valve and a water outlet device. The water-saving valve comprises a valve body and a valve core assembly, wherein the valve body defines a water inlet cavity, a diversion cavity and a water outlet cavity which are communicated in sequence, a first water inlet channel communicated with the diversion cavity is arranged on the cavity wall of the water inlet cavity, a first water passing port and a second water passing port are arranged on the cavity wall of the diversion cavity, and the first water passing port and the second water passing port are both communicated with the water outlet cavity; the valve core assembly comprises a push rod penetrating through the valve body and a valve core arranged in the flow distribution cavity, the push rod is driven to move relative to the valve body so that the valve core closes or opens the second water passing port, and when the valve core closes the second water passing port, the flow distribution cavity is communicated with the water outlet cavity through the first water passing port; when the valve core opens the second water passing port, the diversion cavity is communicated with the water outlet cavity through the first water passing port and the second water passing port. The water-saving valve can conduct drainage and pressure relief when the water-saving valve is closed by arranging the normally-open first water passing port.

Description

Water-saving valve and water outlet device

Technical Field

The invention relates to the field of bathroom equipment, in particular to a water-saving valve and a water outlet device.

Background

In the prior art, a water mixing valve switch is often arranged on water outlet devices such as a shower head, a water tap and the like, the water mixing valve switch is respectively communicated with a cold water pipe, a hot water pipe and a water outlet pipe, and the water mixing valve switch can control the on-off and water inlet ratio of the cold water pipe and the hot water pipe of the water outlet device. However, in some usage scenarios, for example: when the shower bath is needed to be smeared by a user in the shower process by using the shower head, the water mixing valve switch is normally closed, the shower bath is opened after being smeared so as to realize water outlet, and at the moment, if the opening degree and the rotation angle of the water mixing valve switch are inconsistent, the water quantity and the water temperature can be greatly changed, so that the shower experience of the user is influenced.

In the related art, in order to overcome the problems, a water-saving valve is usually installed on a water outlet pipe between a water mixing valve switch and a shower head, the water outlet pipe can be closed under the condition that the water mixing valve switch is opened by closing the water-saving valve, so that the shower head stops water outlet, the water-saving valve is opened after bath cream is smeared, water outlet is recovered, and the state of the water mixing valve switch is not changed, so that the consistency of the water outlet can be ensured.

However, the water-saving valve has two disadvantages, the first disadvantage is that the sudden cut-off of water flow can generate water hammer phenomenon, the water pressure in front of the water-saving valve is raised several times or even tens times instantly, the damage of the water-saving valve is easy to cause, and the service life of the water-saving valve is short. In addition, after the waterway is completely closed, the illusion that the water mixing valve switch is closed is easily caused to a user.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the water-saving valve, and the water-saving valve can conduct drainage and pressure relief when the water-saving valve is closed and the second water-passing port is closed by arranging the normally-open first water-passing port.

The invention also provides a water outlet device with the water-saving valve.

An embodiment of a water saving valve according to the first aspect of the present invention includes:

the valve body is used for defining a water inlet cavity, a diversion cavity and a water outlet cavity which are communicated in sequence, a first water inlet channel communicated with the diversion cavity is arranged on the cavity wall of the water inlet cavity, a first water passing port and a second water passing port are arranged on the cavity wall of the diversion cavity, and the first water passing port and the second water passing port are both communicated with the water outlet cavity;

the valve core assembly comprises a push rod penetrating through the valve body and a valve core arranged in the diversion cavity, the push rod is driven to move relative to the valve body so as to enable the valve core to close or open the second water passing port, and when the valve core closes the second water passing port, the diversion cavity is communicated with the water outlet cavity through the first water passing port; when the valve core opens the second water passing port, the diversion cavity is communicated with the water outlet cavity through the first water passing port and the second water passing port.

The water-saving valve provided by the embodiment of the invention has at least the following beneficial effects:

the utility model discloses a through setting up the first mouth of a river that crosses that normally opens, can carry out drainage and pressure release when the water-saving valve is closed, the second crosses the mouth of a river and seal, can effectively reduce the rising range of water pressure before the valve to improve the life of water-saving valve. And, because the first water port can flow a small amount of rivers all the time to make water outlet device be the state of dripping, thereby remind the user that this water outlet device's mixing valve switch has not closed, be in the state of suspending the play water this moment.

According to some embodiments of the invention, the water saving valve further comprises an adjusting assembly arranged in the water outlet cavity, the adjusting assembly comprises a main body part connected with the cavity wall of the water outlet cavity, the main body part defines a first adjusting cavity, one end of the first adjusting cavity is communicated with the first water outlet, and the other end of the first adjusting cavity is communicated with the water outlet cavity;

wherein the adjustment assembly further comprises a moveable member disposed in the first adjustment chamber, the moveable member configured to: the water passing area in the first adjusting cavity is adjusted under the action of water pressure; when the water pressure is increased, the movable piece moves so as to reduce the water passing area; when the water pressure is reduced, the movable piece moves so that the water passing area is increased.

According to some embodiments of the invention, the adjusting assembly further comprises a fixed part and a first elastic part, wherein the fixed part and the first elastic part are arranged in the first adjusting cavity, the movable part is arranged at one end close to the first water passing port, the fixed part is arranged at one end far away from the first water passing port, and the movable part is connected with the fixed part through the first elastic part so as to enable the movable part to move relative to the fixed part;

the movable piece is provided with a first water passing hole, the fixed piece is provided with an extension part, when the water pressure is increased, the movable piece moves towards the fixed piece, so that the extension part is inserted into the first water passing hole, and the water passing area of the first water passing hole is reduced.

According to some embodiments of the invention, the aperture of the first water passing hole gradually increases along the water flow direction; and/or the outer diameter of the extension part gradually increases along the water flow direction.

According to some embodiments of the invention, when the first water passing hole is provided with a diameter gradually increasing along the water flow direction, and the outer diameter of the extension part gradually increases along the water flow direction, the taper of the first water passing hole is smaller than the taper of the extension part.

According to some embodiments of the invention, one end of the movable member is rotatably connected to the inner wall of the first adjusting cavity, and the other end of the movable member and the inner wall of the first adjusting cavity define a third water passing port, and when the water pressure increases, the movable member rotates to enable the third water passing port to decrease; when the water pressure is reduced, the movable piece rotates to enable the third water passing port to be increased.

According to some embodiments of the present invention, the valve core assembly further includes a rotating member and a second elastic member, where the push rod, the rotating member, the valve core and the second elastic member are sequentially disposed, one end of the rotating member facing the push rod is provided with a guide tooth, the shunt cavity protrudes toward a wall surface of the rotating member and is provided with a limiting portion, the limiting portion defines a first limiting groove and a second limiting groove, a groove depth of the first limiting groove is greater than a groove depth of the second limiting groove, a bottom surface of the second limiting groove is disposed obliquely and extends to be engaged with a side wall of the first limiting groove, and a groove depth of the second limiting groove gradually increases along a direction away from the first limiting groove;

the valve core assembly is provided with an opening state and a closing state, in the opening state, guide teeth of the rotating piece are inserted into the second limiting groove, and the rotating piece drives the valve core to move downwards to a position where the second water outlet is opened; under the closed state, the guide teeth of the rotating piece are inserted into the first limiting grooves, and the second elastic piece drives the valve core to move upwards to the position where the second water passing port is closed.

According to some embodiments of the invention, the outer wall of the rotary member is provided with a plurality of abutment projections extending in an axial direction thereof for abutting the valve spool.

According to some embodiments of the invention, an outer wall of the valve core is in sealing connection with a cavity wall of the diversion cavity, the diversion cavity is divided into a first cavity containing the second elastic piece and a second cavity containing the rotating piece, and a drainage hole used for communicating the first cavity with the second cavity is arranged on an inner wall of the valve core so as to balance pressure difference between the first cavity and the second cavity when the valve core moves downwards.

According to some embodiments of the invention, the limiting part is disposed at the end of the first water inlet channel, the limiting part and the inner wall of the diversion cavity define a second water inlet channel communicated with the first water inlet channel, and the water flow direction of the second water inlet channel is perpendicular to the water flow direction of the first water inlet channel.

An outlet device according to an embodiment of the second aspect of the present invention includes:

a water outlet main body;

the water mixing valve switch is communicated with a water inlet pipe and a water outlet pipe, and the water outlet pipe is used for communicating the water outlet main body;

the water conservation valve of any one of the previous embodiments mounted on the outlet pipe.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a water-saving valve according to an embodiment of the present invention;

FIG. 2 is a schematic view of a lateral explosion of a water-saving valve according to an embodiment of the present invention;

FIG. 3 is a schematic view of a longitudinal explosion of a water-saving valve according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a valve body of a water-saving valve according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a water-saving valve according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a water-saving valve according to an embodiment of the present invention (low water pressure environment with the water-saving valve in a closed state);

FIG. 7 is a schematic cross-sectional view of a water-saving valve according to an embodiment of the present invention (high water pressure environment with the water-saving valve in a closed state);

FIG. 8 is a schematic cross-sectional view of a water-saving valve according to an embodiment of the present invention (low water pressure environment with the water-saving valve in an open state);

FIG. 9 is a schematic cross-sectional view of a water-saving valve according to an embodiment of the present invention (high water pressure environment with the water-saving valve in an open state);

FIG. 10 is a schematic view of another implementation of a moveable member (low water pressure environment) according to an embodiment of the present invention;

FIG. 11 is a schematic view of another implementation of a moveable member (high water pressure environment) according to an embodiment of the present invention;

FIG. 12 is a schematic view illustrating the cooperation between the extension portion and the first water passing hole according to the embodiment of the present invention;

FIG. 13 is a bottom view of the diverter chamber of the valve body of an embodiment of the present invention;

FIG. 14 is a schematic view of a push rod according to an embodiment of the present invention;

FIG. 15 is a schematic view of a rotating member according to an embodiment of the present invention;

fig. 16 is a schematic structural view of a valve core according to an embodiment of the present invention.

Reference numerals:

a water-saving valve 10;

a valve body 100; a water inlet chamber 110; a shunt chamber 120; a first water passing port 121; a second water passing port 122; a limiting part 123; a first limiting groove 1231; a second limiting groove 1232; a first chamber 124; a water outlet chamber 130; a first water inlet passage 140; a second water inlet passage 150;

a push rod 210; a first abutment tooth 211; a second abutment tooth 212; a valve core 220; drainage hole 221; a rotating member 230; guide teeth 231; an abutment protrusion 232; a second elastic member 240; a key 250;

a body member 310; a first adjustment chamber 311; a movable member 320; a first water passing hole 321; a third water passing port 322; a fixing member 330; an extension 331; a first elastic member 340;

a support 400; and a third elastic member 410.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiment of the first aspect of the present application proposes a water saving valve 10, where the water saving valve 10 can be used on water outlet devices such as a shower head and a faucet, and can temporarily reduce water quantity so as to save water resources. It should be noted that the water saving valve 10 cannot replace a water mixing valve switch, and needs to be matched with the water mixing valve switch for use, and is usually arranged at the downstream of the water mixing valve switch to stop the warm water after the cold water and the hot water are mixed by the water mixing valve switch. Specifically, as shown in fig. 1 to 4, the water saving valve 10 includes a valve body 100 and a valve core assembly, wherein the valve body 100 defines a water inlet chamber 110, a flow dividing chamber 120 and a water outlet chamber 130 which are sequentially communicated, and water flows through the water inlet chamber 110, the flow dividing chamber 120 and the water outlet chamber 130 sequentially.

As shown in fig. 4, a first water inlet channel 140 communicated with the diversion cavity 120 is arranged on the cavity wall of the water inlet cavity 110, a first water passing port 121 and a second water passing port 122 are arranged on the cavity wall of the diversion cavity 120, and the first water passing port 121 and the second water passing port 122 are both communicated with the water outlet cavity 130, that is, water flowing into the diversion cavity 120 can be split into two waterways, one water flow flows into the water outlet cavity 130 through the first water passing port 121, and the other water flow flows into the water outlet cavity 130 through the second water passing port 122. It should be noted that, the two waterways have a certain difference, wherein the waterway from which the water flows to the water outlet cavity 130 through the second water passing port 122 is the main waterway, the flow is larger, and the waterway from which the water flows to the water outlet cavity 130 through the first water passing port 121 is the auxiliary waterway when the water saving valve 10 is opened, so that the flow is smaller. It will be appreciated that the water passing area of the first water passing port 121 should be smaller than the water passing area of the second water passing port 122.

The valve cartridge assembly includes a push rod 210 and a valve cartridge 220, and as shown in fig. 3 to 5, a through hole penetrating a wall of the valve body on one side of the valve body 100 is provided in the valve body 100, and the through hole communicates with the diverting chamber 120. The push rod 210 is inserted through the through hole, that is, the valve body 100, and slidably connected to the wall of the through hole, so as to be capable of moving relative to the valve body 100 after receiving an external tensile force or pressure. One end of the push rod 210 is located in the shunt cavity 120, and the other end protrudes out of the valve body 100, and a key 250 is often connected to the push rod 210 so that the user can press the push rod 210 to move toward the shunt cavity 120 when the key 250 is pressed.

It should be noted that the movement of the plunger 210 can affect the position of the valve core 220. In some embodiments (not shown), the push rod 210 may be directly connected to the valve cartridge 220 such that the valve cartridge 220 moves in synchronization with the push rod 210 to move the valve cartridge 220 to a position closing the second water passing port 122 or opening the second water passing port 122. In other embodiments, such as the embodiment shown in fig. 6 to 9, the push rod 210 is not directly connected to the valve body 220, but the restriction state of the valve body 220 can be released to move to a position closing the second water passing port 122 (as shown in fig. 6 and 7) by the driving of the push rod 210, or the displacement of the valve body 220 can be restricted to remain in a position opening the second water passing port 122 (as shown in fig. 8 and 9), the specific movement process of which will be described in detail below.

In the present application, as shown in fig. 4 and 5, the first water passing port 121 is located above the second water passing port 122, and the movement of the valve body 220 is limited to the second water passing port 122 and the range below it, so that the first water passing port 121 is not closed by the valve body 220, and when the valve body 220 closes the second water passing port 122, the diversion chamber 120 communicates with the water outlet chamber 130 through the first water passing port 121. When the valve core 220 opens the second water passing port 122, the diversion chamber 120 communicates with the water outlet chamber 130 through the first water passing port 121 and the second water passing port 122. That is, the first water passing port 121 is in a normally open state.

It should be noted that, in the related art, the water saving valve 10 is often set to a fully closed structure, that is, only one water path is provided in the water saving valve 10, and when the water saving valve 10 is closed, the whole water path is closed, so that the water outlet device pauses water outlet. The water-saving valve 10 has two disadvantages, namely that the sudden cut-off of water flow can generate water hammer phenomenon, the water pressure in front of the water-saving valve 10 is raised instantly by several times or even tens times, the water-saving valve 10 is easy to damage, and the service life of the water-saving valve 10 is short. In addition, after the waterway is completely closed, the illusion that the water mixing valve switch is closed is easily caused to a user.

From this, this application through setting up the first mouth of a river 121 that normally opens, can drain and pressure release when water-saving valve 10 closes, second mouth of a river 122 seals, can effectively reduce the rising range of water pressure before the valve to improve water-saving valve 10's life. In addition, the first water passing port 121 can always flow a small amount of water, so that the water outlet device is in a dripping water outlet state, and a user is reminded that the water mixing valve switch of the water outlet device is not closed, and the water outlet device is in a water outlet suspension state at the moment.

In some embodiments, the water conservation valve 10 of the present application further includes an adjustment assembly. The adjusting assembly is disposed in the water outlet cavity 130, and the adjusting assembly includes a main body member 310, where the main body member 310 is connected with a cavity wall of the water outlet cavity 130 and defines a first adjusting cavity 311 (as shown in fig. 4), and it is understood that the main body member 310 may be a semi-open structure, and an opening thereof is connected with the cavity wall of the water outlet cavity 130, so that the main body member 310 and the cavity wall of the water outlet cavity 130 define the first adjusting cavity 311 together, or the main body member 310 may be a circumferential closed structure, as shown in fig. 4, where the main body member 310 is hollow and is disposed in the water outlet cavity 130, and the main body member 310 defines the first adjusting cavity 311 therein. The body member 310 may be a separately formed member that is then attached to the inner wall of the outlet chamber 130 or may be integrally formed with the valve body 100 as shown in fig. 4. One end of the first adjusting chamber 311 is communicated with the first water passing port 121, and the other end is communicated with the water outlet chamber 130.

It should be emphasized that, as shown in fig. 6 to 11, the adjusting assembly further includes a movable member 320 disposed in the first adjusting cavity 311, where the movable member 320 is affected by the water pressure, and is capable of adjusting the water passing area in the first adjusting cavity 311, and when the water pressure increases, the movable member 320 moves or rotates to reduce the water passing area; when the water pressure is reduced, the movable member 320 moves or rotates to increase the water passing area. There are various embodiments in which the movable member 320 can be moved or rotated by the water pressure to change the water passing area, which will be respectively exemplified below.

Further, since the first water passing port 121 is provided with the adjusting assembly, the water passing area can be adjusted according to the water pressure, so that the water passing area is reduced when the water pressure is high. Since the flow rate Q of water has the following relationship with the flow velocity V and the water passing area S: q=s×v, and the water pressure P has the following relationship with the flow velocity V, density ρ: p=1/2 ρv2. Therefore, when the water-saving valve 10 is opened, the first water passing port 121 and the second water passing port 122 are opened, water flows exist at the front end and the rear end of the first adjusting cavity 311, the pressure difference is small, the movable piece 320 moves or rotates at the moment, so that the water passing area is increased, water flows can flow out through the first water passing port 121 and the second water passing port 122, the flow of the auxiliary waterway can supplement the flow of the main waterway, and the normal water yield of the water outlet device is prevented from being influenced by the setting of the adjusting component. When the water saving valve 10 is closed, the second water passing port 122 is closed, so that the pressure difference between the front end and the rear end of the first adjusting cavity 311 is increased, and the movable part 320 moves or rotates to reduce the water passing area, thereby playing a role of saving water, and ensuring that the water flow cannot be too large on the premise that the water outlet device has water flow to flow out for reminding a user.

Still further, because the usage environments of the water outlet devices are different, the pressure difference of the water supply system will be greatly different, and the setting of the adjusting component can adjust the leakage amount of the water saving valve 10 when the water saving valve 10 is in the closed state, so as to ensure that the leakage amount of the water saving valve 10 in the closed state is kept basically consistent no matter in the high water pressure environment or the low water pressure environment. Specifically, when the ambient water pressure is large, the flow rate of water is fast, and the water passing area is small by the adjustment of the movable member 320, so that the leakage amount of the water saving valve 10 is maintained according to q=s×v. When the ambient water pressure is small, the flow rate of water is slow, and the water passing area is large by the adjustment of the movable member 320, so that the leakage amount of the water saving valve 10 is maintained as it is according to q=s×v. Therefore, the water-saving valve 10 can keep the leakage amount basically consistent no matter the ambient water pressure is low or high, and the situations that the leakage amount is large in a high water pressure environment and small in a low water pressure environment are avoided.

Based on the above-mentioned structure, divide two water routes in the water-saving valve 10 of this application, wherein, the second of main water route is crossed mouth 122 and can be opened or be closed by case 220, when second was crossed mouth 122 and is closed, and the water yield of play water installation significantly reduces, can avoid when smearing liquid detergent or shower gel the waste of water resource. In addition, since the first water passing port 121 is in a normally open state, no matter the water-saving valve 10 is in an open state or a closed state, the first water passing port 121 can realize the outflow of a small flow of water, and further can remind a user that the water mixing valve switch is not closed at the moment, so that the situation that the water mixing valve switch of the water outlet device is closed due to the fact that the water flow is completely cut off by a user is avoided.

In addition, since the adjusting component can adjust the water yield according to the water pressure, the water yield of the main waterway can be supplemented in the state that the valve body 100 is opened, and the water yield of the first adjusting cavity 311 can be reduced in a quick response manner in the state that the valve body 100 is closed so as to save water resources. And can guarantee the stable unanimity of the leakage quantity of water-saving valve 10 in high water pressure environment and low water pressure environment, avoid leaking the condition that the volume is big under high water pressure environment, the volume is little under low water pressure environment, greatly promoted user's use experience.

Next, the movable member 320 is exemplified by a movement adjustment of the water passing area and a rotation adjustment of the water passing area, respectively. It should be noted in advance that fig. 6 to 9 are schematic diagrams of the water saving valve 10 being connected to a water source, wherein fig. 6 is a schematic diagram of the water saving valve 10 being closed in a low water pressure environment, fig. 7 is a schematic diagram of the water saving valve 10 being closed in a high water pressure environment, fig. 8 is a schematic diagram of the water saving valve 10 being opened in a low water pressure environment, and fig. 9 is a schematic diagram of the water saving valve 10 being opened in a high water pressure environment.

The embodiment shown in fig. 6 to 9, in which the adjusting assembly includes the fixed member 330 and the first elastic member 340 disposed in the first adjusting chamber 311, is an implementation of the movable member 320 being adjusted by movement. The movable member 320 is disposed at an end close to the first water passing port 121, and the fixed member 330 is disposed at an end far from the first water passing port 121. The fixing member 330 is connected with the main body member 310, as shown in fig. 6, the fixing member 330 includes an extension portion 331 and a connection portion, a through hole is provided on the connection portion for water to flow through, an external thread is provided on an outer wall of the connection portion, an internal thread is provided on an inner wall of the main body member 310, and the fixing member 330 can be in threaded connection with the main body member 310. After the connecting portion is connected with the main body 310, the extending portion 331 thereof extends into the first adjusting cavity 311 and is disposed towards the movable member 320. It will be appreciated that in other embodiments, the securing member 330 may also be snapped, welded, etc. with the body member 310.

The movable member 320 is movably connected with the fixed member 330 through a first elastic member 340, as shown in fig. 6, one end of the first elastic member 340 is connected with the movable member 320, and the other end is connected with the fixed member 330. In the initial state that the water saving valve is not filled with water, when the movable member 320, the first elastic member 340 and the fixed member 330 are sequentially disposed in the first adjusting chamber 311, the first elastic member 340 is in an just uncompressed or compressed state, so as to drive the movable member 320 to be at the leftmost end of the first adjusting chamber 311, and at this time, the water filling area is the largest.

The movable member 320 has a first water passing hole 321, the outer wall of the movable member 320 is slidably connected with the inner wall of the first adjusting cavity 311, and a sealing ring abutting against the inner wall of the first adjusting cavity 311 is disposed on the outer wall of the movable member 320, so that water can only pass through the movable member 320 through the first water passing hole 321. When the water pressure increases, the pressure applied to the movable member 320 increases, so that the first elastic member 340 is compressed, the movable member 320 moves toward the direction of the fixed member 330, and the extension 331 of the fixed member 330 is inserted into the first water passing hole 321, reducing the water passing area of the first water passing hole 321. On the contrary, when the water pressure decreases, the pressure applied to the movable member 320 decreases, and the first elastic member 340 resumes the elastic deformation, so that the movable member 320 moves in a direction away from the fixed member 330, and the extension 331 of the fixed member 330 gradually exits the first water passing hole 321, thereby increasing the water passing area of the first water passing hole 321.

Further, in the embodiment shown in fig. 6, the aperture of the first water passing hole 321 is gradually increased along the water flow direction, and it is noted that the water flow direction is the water flow direction in the first water passing hole 321. The extension portion 331 has a cylindrical structure, and the outer diameter is consistent along the water flow direction, so that when the movable member 320 moves toward the fixed member 330 until the extension portion 331 is inserted into the first water passing hole 321, the extension portion 331 is inserted into the first water passing hole 321 deeper as the pressure is greater, and thus the water passing area is smaller. Alternatively, in other embodiments, the inner diameter of the first water passing hole 321 is consistent in the water flow direction, and the outer diameter of the extension 331 is gradually increased in the water flow direction, so that the water passing area is smaller as the insertion depth is deeper after the extension 331 is inserted into the first water passing hole 321.

Alternatively, in other embodiments, as shown in fig. 12, the aperture of the first water passing hole 321 is gradually increased along the water flow direction, and the outer diameter of the extension portion 331 is gradually increased along the water flow direction, so that the effect of the greater water pressure, the deeper the insertion depth, and the smaller the water passing area can be achieved. Conversely, when the water pressure is reduced, the insertion depth is reduced and the water passing area is increased. Further, in the embodiment shown in fig. 12, the increase of the outer diameter of the first water passing hole 321 is smaller than that of the extension portion 331, that is, the taper of the first water passing hole 321 is smaller than that of the extension portion 331, so that the flow rate adjustment of the structure is smooth.

In some embodiments, as shown in fig. 10 and 11, one end of the movable member 320 is rotatably connected to the inner wall of the first adjusting cavity 311, the other end is a free end, the free end and the inner wall of the first adjusting cavity 311 define a third water passing port 322, and it can be understood that an elastic structure, which may be a torsion spring, a spring latch or the like, is further connected to the movable member 320, and is disposed at a connection position between the movable member 320 and the cavity wall of the first adjusting cavity 311; or a common spring, one end of which is connected to a position between the movable member 320 and the first water passing hole 121, and the other end of which is connected to the movable member 320. Thus, when the water pressure increases, the movable member 320 can be rotated clockwise, and the distance between the free end of the movable member 320 and the cavity wall of the side is gradually reduced, so that the third water passing opening 322 is gradually reduced, that is, the water passing area increases. Conversely, when the water pressure decreases, the elastic structure is elastically deformed to rotate the movable member 320 counterclockwise, and the distance between the free end of the movable member 320 and the cavity wall of the side gradually increases, so that the third water passing opening 322 gradually increases, that is, the water passing area increases.

In some embodiments, as shown in fig. 3 and 13 to 15, the valve core assembly is a ball-point pen structure, when the push rod 210 is pressed for the first time, the valve core 220 is moved from a position closing the second water passing port 122 to a position opening the second water passing port 122, and when the push rod 210 is pressed for the second time, the valve core 220 is moved from a position opening the second water passing port 122 to a position closing the second water passing port 122. Specifically, the valve cartridge assembly further includes a rotating member 230 and a second elastic member 240, and the push rod 210, the rotating member 230, the valve cartridge 220, and the second elastic member 240 are sequentially disposed, so that the push rod 210 can move in a downward direction as shown in fig. 6 to 9, thereby pushing the rotating member 230, the valve cartridge 220 to move, and the second elastic member 240 is compressed, so that the valve cartridge 220 moves to a position where the second water passing port 122 is opened. Alternatively, the second elastic member 240 can push the valve body 220 to move upward so that the valve body 220 moves to a position closing the second water passing port 122.

As shown in fig. 15, a guide tooth 231 is disposed at an end of the rotating member 230 facing the push rod 210, and as shown in fig. 4 and 13, a limiting portion 123 is disposed in a protruding manner in the flow distribution chamber 120 facing a wall surface of the rotating member 230, the limiting portion 123 defines a first limiting groove 1231 and a second limiting groove 1232, and it should be noted that the number of the first limiting groove 1231 and the second limiting groove 1232 is usually plural, and the respective first limiting groove 1231 and second limiting groove 1232 are alternately disposed. The groove depth of the first limiting groove 1231 is greater than the groove depth of the second limiting groove 1232, the bottom surface of the second limiting groove 1232 is obliquely arranged and extends to be connected with the side wall of the first limiting groove 1231, and the groove depth of the second limiting groove 1232 is gradually increased along the direction away from the first limiting groove 1231.

As shown in fig. 14, an end of the push rod 210 facing the rotating member 230 is provided with an abutment tooth, and the guide tooth 231 and the abutment tooth are respectively provided with an inclined surface for abutment and matching, so that when the guide tooth 231 of the push rod 210 abuts against the abutment tooth of the rotating member 230, the inclined surface structure at the abutment position can rotate the rotating member 230, thereby switching from the first limiting groove 1231 to the second limiting groove 1232, or moving from the second limiting groove 1232 to the next first limiting groove 1231. It should be noted that, for convenience of description, the abutment teeth of the push rod 210 are named as a first abutment tooth 211 and a second abutment tooth 212, the first abutment tooth 211 is located in the first limiting groove 1231 and can slide along the first limiting groove 1231, the distance from the second abutment tooth 212 to the central axis of the push rod 210 is smaller than the distance from the second abutment tooth 212 to the central axis of the push rod 210, and the second abutment tooth 212 is located outside the first limiting groove 1231 and the second abutment tooth 212 is located inside the limiting part 123. And, the second abutment tooth 212 is disposed corresponding to the second limiting groove 1232, when the guide tooth 231 of the push rod 210 falls into the second limiting groove 1232, the thickness of the guide tooth 231 is greater than the wall thickness of the limiting portion 123, so that the guide tooth 231 can be pushed to move during the sliding process of the second abutment tooth 212 downward relative to the inner wall of the limiting portion 123, so that the guide tooth 231 slides out of the second limiting groove 1232 and falls into the next first limiting groove 1231.

The valve core assembly has an open state in which the guide teeth 231 of the rotation member 230 are inserted into the second limiting grooves 1232, and the displacement of the rotation member 230 is limited by the second limiting grooves 1232, so that the rotation member 230 drives the valve core 220 to move down to a position where the second water passing port 122 is opened. In the closed state, the guide teeth 231 of the rotating member 230 are inserted into the first limiting grooves 1231, and the second elastic member 240 drives the valve core 220 to move up to the position where the second water passing port 122 is closed. Based on the above structure, the valve core assembly can realize switching between the open state and the closed state. Assuming that the initial state of the valve body assembly is a closed state, as shown in fig. 6, the guide tooth 231 of the rotating member 230 is inserted into the first limiting groove 1231 at this time so as to be able to move in the vertical direction, and the second elastic member 240 drives the valve body 220 to move upward and pushes the rotating member 230 to move upward until the rotating member 230 abuts against the first abutment tooth 211 located in the first limiting groove 1231 and further moves upward until abutting against the top wall of the first limiting groove 1231, so that the valve body 220 cannot move further upward and is restricted to a position closing the second water passing port 122.

When the switching to the open state is required, the push rod 210 is pressed down so that the first abutment teeth 211 in the first limiting groove 1231 push the rotator 230 to move downward, and the inclined direction of the inclined surface of the first abutment teeth 211 is the same as the inclined direction of the bottom surface of the second limiting groove 1232. Thus, when the guide tooth 231 of the rotating member 230 is inserted into the first limiting groove 1231, the rotation thereof is limited to slide only along the depth direction of the first limiting groove 1231, and when the rotating member 230 is driven to move downward until the guide tooth 231 moves to the junction of the first limiting groove 1231 and the second limiting groove 1232, the guide tooth 231 is no longer limited by the first limiting groove 1231, thereby being able to rotate and then drop into the second limiting groove 1232. Because the groove bottom of the second limiting groove 1232 is inclined, the guide tooth 231 falls into the deepest part of the second limiting groove 1232 and abuts against the groove wall. It can be appreciated that, since the second elastic member 240, the valve core 220 and the rotating member 230 are sequentially abutted, the guide tooth 231 is abutted in the second limiting groove 1232, so that the valve core assembly is maintained in the open state in which the second water passing port 122 is opened.

When the switch is needed to be in the closed state, the push rod 210 is pressed down again, at this time, the second abutting tooth 212 moves down and abuts against the guide tooth 231, so as to push the guide tooth 231 to move down, until the junction between the second limiting groove 1232 and the next first limiting groove 1231 is pushed, the guide tooth 231 falls into the first limiting groove 1231 under the action of the slope of the junction, so that under the action of the second elastic piece 240, the valve core 220 and the rotating piece 230 move up, so that the valve core 220 closes the second water passing port 122.

Further, as shown in fig. 15, the outer wall of the rotating member 230 is provided with a plurality of abutment protrusions 232 extending in the axial direction thereof, and the abutment protrusions 232 are used for abutting against the valve core 220. It should be appreciated that, compared to the abutment between the end surface of the rotating member 230 and the end surface of the valve core 220, the contact area between the rotating member 230 and the valve core 220 can be greatly reduced by the abutment of the end of the abutment protrusion 232 with the flat surface on the valve core 220 in this embodiment, so that the frictional resistance when the rotating member 230 rotates relative to the valve core 220 is reduced.

In some embodiments, the outer wall of the valve core 220 is hermetically connected with the cavity wall of the shunt cavity 120 and partitions the shunt cavity 120 into a first cavity 124 and a second cavity as shown in fig. 6, the rotating member 230 is located in the second cavity, the second elastic member 240 is located in the first cavity 124, the inner wall of the valve core 220 is provided with a drainage hole 221 as shown in fig. 16, and the drainage hole 221 extends in the axial direction of the valve core 220 and is disposed through the valve core 220, so that the drainage hole 221 communicates with the first cavity 124 and the second cavity. When the valve core 220 moves downwards and the second elastic member 240 compresses, the pressure difference between the first chamber 124 and the second chamber is balanced by the drainage hole 221, so that the situation that the valve core 220 moves downwards difficultly due to the fact that the first chamber 124 is in a sealed state is avoided, and further, a user can easily press the push rod 210 and drive the push rod to move so as to drive the valve core 220 to move downwards, so that labor is saved.

In some embodiments, as shown in fig. 4, the limiting portion 123 is disposed at the end of the first water inlet channel 140, as shown in fig. 4, the limiting portion 123 and the inner wall of the diversion cavity 120 define a second water inlet channel 150 extending vertically, the second water inlet channel 150 is communicated with the first water inlet channel 140, and the water flow direction of the second water inlet channel 150 is perpendicular to the water flow direction of the first water inlet channel 140. It will be appreciated that when water enters from the first inlet channel 140, it impacts the stop 123, thereby losing kinetic energy, reducing the flow rate, and then enters from the second inlet channel 150 into the diversion chamber 120. Because the limiting part 123 shields the rotating member 230, the push rod 210 and the like, the influence of the direct impact of water flow to the diversion cavity 120 on the rotating member 230 and the push rod 210 is avoided.

In some embodiments, to facilitate assembly of the rotating member 230, the second elastic member 240, and the like, an opening communicating with the flow distribution chamber 120 is formed at the lower end of the valve body 100, and after the rotating member 230, the second elastic member 240, and the like are installed in the flow distribution chamber 120, the supporting member 400 is connected to the valve body 100 to close the opening, so that the second elastic member 240 abuts against the supporting member 400 and the valve core 220, respectively.

In some embodiments, the push rod 210 is further connected with a third elastic member 410, and the third elastic member 410 is connected with the support member 400 and the push rod 210, respectively, for driving the push rod 210 to return after being pressed.

In the embodiment of the second aspect of the present application, the water outlet device includes a water outlet main body, a water mixing valve switch and a water saving valve 10, the water outlet main body may be a shower head, a faucet, etc., the water mixing valve switch is communicated with a water inlet pipe and a water outlet pipe, it can be understood that the water mixing valve switch may be a three-way valve, and is respectively connected with a hot water inlet pipe, a cold water inlet pipe and a water outlet pipe, and may also be a two-way valve, and is connected with a water inlet pipe and a water outlet pipe, and the water outlet pipe is used for communicating the water outlet main body. The water-saving valve 10 is arranged on the water outlet pipe, so that the state of the water mixing valve is not required to be changed, the water outlet main body can be stopped to outlet water or slightly outlet water can be realized by closing the water-saving valve 10, water resources are saved, water outlet can be restored after the water-saving valve 10 is opened, and the water temperature or water quantity is prevented from being greatly changed with the situation before the suspension because the state of the water mixing valve is unchanged.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.

Claims (9)

1. Water-saving valve, its characterized in that includes:

the valve body is used for defining a water inlet cavity, a diversion cavity and a water outlet cavity which are communicated in sequence, a first water inlet channel communicated with the diversion cavity is arranged on the cavity wall of the water inlet cavity, a first water passing port and a second water passing port are arranged on the cavity wall of the diversion cavity, and the first water passing port and the second water passing port are both communicated with the water outlet cavity;

the valve core assembly comprises a push rod penetrating through the valve body and a valve core arranged in the diversion cavity, the push rod is driven to move relative to the valve body so as to enable the valve core to close or open the second water passing port, and when the valve core closes the second water passing port, the diversion cavity is communicated with the water outlet cavity through the first water passing port; when the valve core opens the second water passing port, the diversion cavity is communicated with the water outlet cavity through the first water passing port and the second water passing port;

the water-saving valve further comprises an adjusting assembly, the adjusting assembly is arranged in the water outlet cavity, the adjusting assembly comprises a main body part connected with the cavity wall of the water outlet cavity, the main body part defines a first adjusting cavity, one end of the first adjusting cavity is communicated with the first water outlet, and the other end of the first adjusting cavity is communicated with the water outlet cavity;

wherein the adjustment assembly further comprises a moveable member disposed in the first adjustment chamber, the moveable member configured to: the water passing area in the first adjusting cavity is adjusted under the action of water pressure; when the water pressure is increased, the movable piece moves so as to reduce the water passing area; when the water pressure is reduced, the movable piece moves so as to increase the water passing area;

the valve core assembly further comprises a rotating piece and a second elastic piece, the push rod, the rotating piece, the valve core and the second elastic piece are sequentially arranged, one end of the rotating piece, which faces the push rod, is provided with guide teeth, the shunt cavity, which faces the wall surface of the rotating piece, is convexly provided with a limiting part, the limiting part is used for limiting a first limiting groove and a second limiting groove, the groove depth of the first limiting groove is larger than that of the second limiting groove, the bottom surface of the second limiting groove is obliquely arranged and extends to be connected with the side wall of the first limiting groove, and the groove depth of the second limiting groove is gradually increased along the direction away from the first limiting groove;

the valve core assembly is provided with an opening state and a closing state, in the opening state, guide teeth of the rotating piece are inserted into the second limiting groove, and the rotating piece drives the valve core to move downwards to a position where the second water outlet is opened; under the closed state, the guide teeth of the rotating piece are inserted into the first limiting grooves, and the second elastic piece drives the valve core to move upwards to the position where the second water passing port is closed.

2. The water saving valve according to claim 1, wherein the adjusting assembly further comprises a fixed member and a first elastic member disposed in the first adjusting chamber, the movable member being disposed at an end near the first water passing port, the fixed member being disposed at an end far from the first water passing port, the movable member being connected to the fixed member through the first elastic member so that the movable member can move relative to the fixed member;

the movable piece is provided with a first water passing hole, the fixed piece is provided with an extension part, when the water pressure is increased, the movable piece moves towards the fixed piece, so that the extension part is inserted into the first water passing hole, and the water passing area of the first water passing hole is reduced.

3. The water saving valve according to claim 2, wherein the aperture of the first water passing hole is gradually increased in the water flow direction; and/or the outer diameter of the extension part gradually increases along the water flow direction.

4. The water saving valve according to claim 3, wherein when the first water passing hole is provided such that the aperture gradually increases in the water flow direction, and the outer diameter of the extension portion gradually increases in the water flow direction, the taper of the first water passing hole is smaller than the taper of the extension portion.

5. The water saving valve according to claim 1, wherein one end of the movable member is rotatably connected to an inner wall of the first adjusting chamber, and the other end of the movable member and the inner wall of the first adjusting chamber define a third water passing port, and when the water pressure increases, the movable member rotates to reduce the third water passing port; when the water pressure is reduced, the movable piece rotates to enable the third water passing port to be increased.

6. The water saving valve according to claim 1, wherein the outer wall of the rotary member is provided with a plurality of abutment projections extending in an axial direction thereof for abutting the valve spool.

7. The water saving valve according to claim 6, wherein the outer wall of the valve core is hermetically connected with the cavity wall of the flow dividing cavity, and separates the flow dividing cavity into a first cavity accommodating the second elastic member and a second cavity accommodating the rotating member, and the inner wall of the valve core is provided with a drainage hole for communicating the first cavity and the second cavity so as to balance the pressure difference between the first cavity and the second cavity when the valve core moves down.

8. The water saving valve according to claim 1, wherein the limiting portion is disposed at an end of the first water inlet channel, the limiting portion and an inner wall of the diversion cavity define a second water inlet channel communicated with the first water inlet channel, and a water flow direction of the second water inlet channel is perpendicular to a water flow direction of the first water inlet channel.

9. The play water installation, its characterized in that includes:

a water outlet main body;

the water mixing valve switch is communicated with a water inlet pipe and a water outlet pipe, and the water outlet pipe is used for communicating the water outlet main body;

the water saving valve according to any one of claims 1 to 8, wherein the water saving valve is mounted on the water outlet pipe.