CN113551065A - Water mixing valve with water return, water temperature adjusting and flow adjusting functions and water using system - Google Patents

Abstract

The application relates to and provides a take return water, temperature regulation and flow control function's muddy water valve and water system, wherein mix the water valve and include: the valve comprises a fixed valve plate, a first movable valve plate and a second movable valve plate, wherein the first movable valve plate is attached to the fixed valve plate in a manner of pivoting around a pivot axis, the second movable valve plate is attached to the first movable valve plate in a manner of moving in a first direction, and the pivot axis is perpendicular to the first direction; the fixed valve plate is provided with a first surface attached to the first movable valve plate, the first movable valve plate is provided with a second surface attached to the fixed valve plate and a third surface attached to the second movable valve plate, and the second movable valve plate is provided with a fourth surface attached to the first movable valve plate; the first cold water hole, the first hot water hole, the first water mixing hole and the return water hole which extend to the first surface are arranged on the fixed valve plate in a penetrating mode, the second water mixing hole and the third water mixing hole which extend to the third surface from the second surface are arranged on the first movable valve plate in a penetrating mode, the return water groove which is inwards recessed from the second surface is arranged on the first movable valve plate, and the water mixing groove which is inwards recessed from the fourth surface is arranged on the second movable valve plate.

Description

Water mixing valve with water return, water temperature adjusting and flow adjusting functions and water using system

Technical Field

The application relates to a water mixing valve with functions of backwater, water temperature regulation and flow regulation and a water using system.

Background

The water mixing valve is used for adjusting the flow ratio of cold water to hot water and further adjusting the temperature of cold and hot mixed water, and is widely applied to a system such as a faucet and a shower head. There is room for further optimization of conventional mixing valves in terms of structure and function.

Disclosure of Invention

The technical problem that this application was solved is: a water mixing valve with water returning, water temperature adjusting and flow adjusting functions and a water using system are provided.

The technical scheme of the application is as follows:

first aspect provides a take return water, temperature regulation and flow control function's muddy water valve, includes: fixed valve block, first movable valve block and second movable valve block, wherein:

the first movable valve plate is abutted against the fixed valve plate in a manner of pivoting around a pivot axis, the second movable valve plate is abutted against the first movable valve plate in a manner of moving in a first direction, and the pivot axis is perpendicular to the first direction;

the fixed valve plate is provided with a first surface attached to the first movable valve plate, the first movable valve plate is provided with a second surface attached to the fixed valve plate and a third surface attached to the second movable valve plate, and the second movable valve plate is provided with a fourth surface attached to the first movable valve plate;

the fixed valve plate is provided with a first cold water hole, a first hot water hole, a first water mixing hole and a water return hole which extend to the first surface in a penetrating manner, the first movable valve plate is provided with a second water mixing hole and a third water mixing hole which extend to the third surface from the second surface in a penetrating manner, the first movable valve plate is provided with a water return groove which is recessed inwards from the second surface, and the second movable valve plate is provided with a water mixing groove which is recessed inwards from the fourth surface;

when the first movable valve plate and the fixed valve plate are located at a first relative position, the first hot water hole and the water return hole are both communicated with the water return groove, and the first cold water hole is blocked by the first movable valve plate;

when the first movable valve plate and the fixed valve plate are located at a second relative position, the first cold water hole is communicated with the second water mixing hole, the first hot water hole is blocked by the first movable valve plate, and the first water mixing hole is communicated with the third water mixing hole;

when the first movable valve plate and the fixed valve plate are located at a third relative position, the first cold water hole is blocked by the first movable valve plate, the first hot water hole is communicated with the second water mixing hole, and the first water mixing hole is communicated with the third water mixing hole;

when the first movable valve plate and the fixed valve plate are located at a fourth relative position, the first cold water hole and the first hot water hole are both communicated with the second water mixing hole, and the first water mixing hole is communicated with the third water mixing hole; and in the fourth relative position, the ratio of the communication area of the first cold water hole and the second water mixing hole to the communication area of the first hot water hole and the second water mixing hole changes in response to the first movable valve plate pivoting about the pivot axis;

when the second movable valve plate and the first movable valve plate are located at a sixth relative position, the second water mixing hole and the third water mixing hole are both communicated with the water mixing groove; and in the sixth relative position, the communication area of the second water mixing hole and the water mixing groove changes in response to the second movable valve plate moving in the first direction.

In an optional design, when the first movable valve plate and the fixed valve plate are located at a fifth relative position, the first cold water hole and the first hot water hole are communicated with the water return groove.

In an optional design, when the second movable valve plate and the first movable valve plate are located at a seventh relative position, the second water mixing hole or/and the third water mixing hole are/is blocked by the second movable valve plate.

In an alternative design, the first orifice of the first cold water hole on the first surface, the second orifice of the first hot water hole on the first surface, the third orifice of the water return hole on the first surface, the fourth orifice of the second water mixing hole on the second surface, and the first notch of the water return groove on the second surface are all arranged on the same cylindrical surface, and the axis of the cylindrical surface coincides with the pivot axis.

In an alternative design, the fifth orifice of the first water mixing hole on the first surface and the sixth orifice of the third water mixing hole on the second surface are all disposed on the pivot axis.

In an alternative design, the third water mixing hole is arranged on the pivot axis at a seventh hole on the third surface, the water mixing tank comprises a first tank body and a second tank body which are arranged along the first direction, and the first tank body comprises a middle tank section in the first direction and a left tank section and a right tank section which are arranged on two opposite sides of the middle tank section.

In an optional design, the first orifice, the second orifice and the third orifice are sequentially arranged adjacently in a direction around the pivot axis, the first groove is a circular arc groove, the second water mixing hole has an eighth orifice on the third surface, and a pivot radian of the eighth orifice between the second relative position and the fourth relative position is less than or equal to that of the circular arc groove.

In an optional design, a worm wheel with an outer gear ring structure is fixedly arranged on the periphery of the first movable valve plate in a free-running mode, and a first motor is connected with a worm meshed with the worm wheel to drive the first movable valve plate to pivot around the pivot axis;

still include the valve casing, the valve casing has the edge the groove is moved in leading that the first direction extends, second movable valve block activity is inlayed and is located in leading the groove, deviating from of second movable valve block the fifth surface on fourth surface system has the race that extends in the second direction, and the eccentric wheel is connected to the second motor, the eccentric wheel with can the mode activity that moves in the second direction arrange in the race, wherein, the second direction respectively with the pivot axis with the first direction is perpendicular.

In a second aspect, a water usage system is provided, comprising:

a shell body, a plurality of first connecting rods and a plurality of second connecting rods,

a cold water flow passage, a hot water flow passage, a mixed water flow passage and a return water flow passage which are arranged in the shell, and

the cold and hot water valve is arranged in the shell and comprises a valve body and a valve cover;

the cold water flow channel, the hot water flow channel, the mixed water flow channel and the return water flow channel are respectively communicated with the first cold water hole, the first hot water hole, the first water mixing hole and the return water hole.

In an optional design, the cold water flow passage and the hot water flow passage are respectively provided with a water inlet joint extending out of the shell, and the mixed water flow passage and the return water flow passage are respectively provided with a water outlet joint extending out of the shell

The application has at least the following beneficial effects:

this kind of muddy water valve of this application not only has the temperature regulatory function, still has flow control and return water function, can be when the hot water runner is not enough because of heat dissipation cold water temperature, draw out the cooling water of losing the temperature in the hot water runner fast, make the hot water of upper reaches not losing the temperature replenish the play water end to hot water runner especially hot water runner rapidly, promote the temperature of hot water runner fast in the short time, help being close to the required ideal temperature of user at the follow-up leaving water temperature at the water use terminal, be applicable to very much in the waterway system who has the automatically regulated requirement to temperature and flow.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description only relate to some embodiments of the present application and are not limiting on the present application.

FIG. 1 is a schematic view of the water system as a whole in an embodiment of the present application.

Fig. 2 is a partial sectional view of the water using system of fig. 1.

Fig. 3 is a partial sectional view of the water using system of fig. 1.

Fig. 4 is a partial schematic view of the water system of fig. 1.

Fig. 5 is a partially exploded view of fig. 4.

Fig. 6 is a partial schematic view of the water system of fig. 1.

Fig. 7 is a partial schematic view of a mixing valve according to an embodiment of the present application.

Fig. 8 is a partially exploded view of a mixing valve in an embodiment of the present application. .

Fig. 9 is a partially exploded view of a mixing valve in an embodiment of the present application.

Fig. 10 is a partially exploded view of a mixing valve in accordance with an embodiment of the present application.

Fig. 11 is a schematic view of the mixing valve in the first relative position between the first movable plate and the fixed plate.

Fig. 12 is a schematic view of the mixing valve in the second relative position between the first movable blade and the fixed blade according to the embodiment of the present application.

Fig. 13 is a schematic view of the mixing valve in the third relative position between the first movable blade and the fixed blade.

Fig. 14 is a schematic view of the mixing valve in the embodiment of the present application when the first movable valve plate and the fixed valve plate are in the fourth relative position, where a communication area between the first cold water hole and the second water mixing hole is larger than a communication area between the first hot water hole and the second water mixing hole.

Fig. 15 is a schematic view of the mixing valve in the embodiment of the present application when the first movable valve plate and the fixed valve plate are located at the fourth relative position, where a communication area between the first cold water hole and the second water mixing hole is equal to a communication area between the first hot water hole and the second water mixing hole.

Fig. 16 is a schematic view of the mixing valve in the embodiment of the present application when the first movable valve plate and the fixed valve plate are in the fourth relative position, where a communication area between the first cold water hole and the second water mixing hole is smaller than a communication area between the first hot water hole and the second water mixing hole.

Fig. 17 is a schematic view of the mixing valve in the fifth relative position between the first movable blade and the fixed blade according to the embodiment of the present application.

Fig. 18 is a schematic cross-sectional view of the mixing valve in the sixth relative position between the second movable valve plate and the first movable valve plate in the embodiment of the present application.

Fig. 19 is a schematic cross-sectional view of the mixing valve in the sixth relative position between the second movable valve plate and the first movable valve plate according to the embodiment of the present application; wherein, the communication area of the second water mixing hole and the water mixing groove in fig. 18 is larger than that in fig. 19.

Fig. 20 is a schematic cross-sectional view of the mixing valve in the seventh relative position between the second movable valve plate and the first movable valve plate according to the embodiment of the present application.

Description of reference numerals:

c-pivot axis, f 1-first direction, f 2-second direction;

1-a cold water flow channel, 2-a hot water flow channel, 3-a water mixing flow channel, 4-a water returning flow channel, 5-a water using terminal, 6-a water mixing valve, 7-a water temperature sensor, 9-a shell and 10-a counter basin;

101-cold water joint, 201-hot water joint, 301-water mixing joint and 401-water return joint;

601-a fixed valve plate, 602-a first movable valve plate, 603-a second movable valve plate, 604-a valve housing, 605-a first motor, 606-a second motor, 607-a worm wheel, 608-a worm, 609-an eccentric wheel;

601 a-a first surface, 602 a-a second surface, 602 b-a third surface, 603 a-a fourth surface, 603 b-a fifth surface;

6041-guide moving groove;

6032-wheel groove;

6011-first cold water hole, 6012-first hot water hole, 6013-water return hole, 6014-first water mixing hole;

6021-water return tank, 6022-second water mixing hole, 6023-third water mixing hole;

6031-water mixing tank; 6031 a-first trough, 6031 b-second trough, 6031a 1-middle trough, 6031a 2-left trough, 6031a 3-right trough;

6011 a-first port, 6012 a-second port, 6013 a-third port, 6022 a-fourth port, 6014 a-fifth port, 6021 a-first slot, 6023 a-sixth port, 6023 b-seventh port, 6022 b-eighth port.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application. It will be understood that some of the technical means of the various embodiments described herein may be replaced or combined with each other without conflict.

In the description of the present application and claims, the terms "first," "second," and the like, if any, are used solely to distinguish one from another as between described objects and not necessarily in any sequential or technical sense. Thus, an object defined as "first," "second," etc. may explicitly or implicitly include one or more of the object. Also, the use of the terms "a" or "an" and the like, do not denote a limitation of quantity, but rather denote the presence of at least one of the two, and "a plurality" denotes no less than two. As used herein, the term "plurality" means not less than two.

In the description of the present application and the claims, the terms "connected," "mounted," "fixed," "housed," and the like are used broadly unless otherwise indicated. For example, "connected" may be a separate connection or may be integrally connected; can be directly connected or indirectly connected through an intermediate medium; may be non-detachably connected or may be detachably connected. For example, "accommodated" does not necessarily mean that the entire body is completely accommodated, and the concept also includes a partial accommodation case in which a part protrudes outward. The specific meaning of the foregoing terms in the present application can be understood by those skilled in the art as appropriate.

In the description of the present application and in the claims, if there is an orientation or positional relationship indicated by the terms "upper", "lower", "horizontal", etc. based on the orientation or positional relationship shown in the drawings, it is only for the convenience of clearly and simply describing the present application, and it is not indicated or implied that the elements referred to must have a specific direction, be constructed and operated in a specific orientation, and these directional terms are relative concepts for the sake of description and clarification and may be changed accordingly according to the change of orientation in which the elements in the drawings are placed. For example, if the device in the figures is turned over, elements described as "below" other elements would then be oriented "above" the other elements.

In the description of the present application and in the claims, the presence of the terms "in sequence" and "sequentially", for example the phrase "A, B, C arranged in sequence", merely indicates the order of arrangement of the elements A, B, C and does not exclude the possibility of arranging other elements between a and B and/or between B and C.

In the description of the specification and claims, the terms "based on" and "based on," if any, are used to describe one or more factors that affect the determination. The term does not exclude additional factors that influence the determination. That is, the determination may be based solely on these factors or at least partially on these factors. For example, the phrase "determine B based on a," in which case a is a factor that affects the determination of B, does not exclude that the determination of B may also be based on C.

In the description of the specification and claims of this application, the term "responsive to" and related terms mean that one signal or event is affected to some extent by another signal or event, but not necessarily completely or directly. If event A occurs "in response" to event B, A may respond directly or indirectly to B. For example, the occurrence of B may ultimately lead to the occurrence of a, but other intermediate events and/or conditions may exist. In other cases, B may not necessarily result in the occurrence of a, and a may occur even though B has not yet occurred. Furthermore, the term "responsive to" may also mean "at least partially responsive to". The term "determining" broadly encompasses a wide variety of actions that can include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure), ascertaining and the like, and can also include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory) and the like, as well as resolving, selecting, choosing, establishing and the like. Relevant definitions for other terms will be given in the following description.

In the description of the present specification and claims, the term "if present may generally be interchangeable with" when … "or" at … "or" in response to a determination "or" in response to a detection ", depending on the context.

In the description of the specification and claims of this application, the term "configured to" if present is generally interchangeable with "… capable", "designed to", "for", or "capable", depending on the context.

Embodiments of the present application will now be described with reference to the accompanying drawings.

Fig. 1 to 20 show an embodiment of a water system of the present application, which includes a cold water flow passage 1, a hot water flow passage 2, a mixing water flow passage 3, a return water flow passage 4, and a water use terminal 5. The water usage terminal 5 is a faucet having a water outlet in communication with the mixed water flow channel 3. The water outlet end of the cold water flow channel 1 and the water outlet end of the hot water flow channel 2 are communicated with the water inlet end of the mixed water flow channel 3 through the same mixed water valve 6 in an on-off mode, namely, the mixed water valve 6 is connected between the cold water flow channel 1 and the mixed water flow channel 3 and between the hot water flow channel 2 and the mixed water flow channel 3. The water inlet end of the return water flow passage 4 is also connected to the hot water flow passage 2 through the water mixing valve 6.

In this embodiment, the mixing valve 6 is used to adjust the ratio of the communication area between the cold water flow channel 1 and the mixing flow channel 3 to the communication area between the hot water flow channel 2 and the mixing flow channel 3, so as to adjust the ratio of the cold water and the hot water entering the mixing flow channel 3, so as to obtain an ideal water temperature in the mixing flow channel 3 and deliver the ideal water temperature to the water terminal 5, thereby satisfying the requirement of the user on the water temperature. The mixing valve 6 is also used for selectively connecting or disconnecting the return water flow passage 4 and the hot water flow passage 2. The mixing valve 6 is also used to regulate the flow rate of the mixing flow channel 3. As described in detail below.

In the present embodiment, the water usage terminal 5 is specifically a faucet communicated with the water outlet end of the mixing water channel 3, and has a water outlet. When the water tap is used, water flowing into the mixed water flow passage 3 from the cold water flow passage 1 and/or the hot water flow passage 2 is sent to the water tap for users to use. In other embodiments, the water terminals 5 are shower heads for bathing. It will be appreciated that a portion of the mixing flow path 3 is formed inside the faucet as the water usage terminal 5.

Referring to fig. 3 to 10, the mixing valve 6 includes a fixed valve plate 601, a first movable valve plate 602, and a second movable valve plate 603, wherein:

first movable valve plate 602 abuts against fixed valve plate 601 in a manner of being able to pivot about pivot axis c, that is, first movable valve plate 602 is arranged abutting against fixed valve plate 601, and first movable valve plate 602 is able to pivot about pivot axis c relative to fixed valve plate 601. Second movable valve plate 603 abuts first movable valve plate 602 in a manner that it can move in first direction f1, that is, second movable valve plate 603 abuts first movable valve plate 602, and second movable valve plate 603 can move in first direction f1 relative to second movable valve plate 603 (and fixed valve plate 601). And, the aforementioned pivot axis c is perpendicular to the first direction f 1. The fixed valve plate 601 has a first surface 601a abutting against the first movable valve plate 602. First movable valve plate 602 has a second surface 602a that abuts against fixed valve plate 601 and a third surface 602b that abuts against second movable valve plate 603. Second movable valve plate 603 has a fourth surface 603a that abuts first movable valve plate 602. The fixed valve plate 601 is provided with a first cold water hole 6011, a first hot water hole 6012, a first water mixing hole 6014, and a water return hole 6013 extending to the first surface 601a in a penetrating manner. The first movable valve plate 602 is provided with a second water mixing hole 6022 and a third water mixing hole 6023 extending from the second surface 602a to the third surface 602 b. A return water groove 6021 is provided on the first movable valve plate 602 so as to be recessed inward from the second surface 602 a. The second movable valve plate 603 is provided with a water mixing groove 6031 recessed inward from the fourth surface 603 a.

The cold water flow passage 1, the hot water flow passage 2, the mixed water flow passage 3 and the return water flow passage 4 are respectively and correspondingly communicated with the first cold water hole 6011, the first hot water hole 6012, the first mixed water hole 6014 and the return water hole 6013.

When the first movable valve plate 602 and the fixed valve plate 601 are located at the first relative position, both the first hot water hole 6012 and the water return hole 6013 are communicated with the water return groove 6021, and the first cold water hole 6011 is blocked by the first movable valve plate 602, as shown in fig. 11 and with reference to fig. 8 to 10. In this state, the water in the cold water flow passage 1 is blocked at the second surface 602a of the first movable valve plate 602, the water return groove 6021 communicates the first hot water hole 6012 with the water return hole 6013, and the water (e.g., the cooling water of the hot water) supplied from the hot water flow passage 2 to the first hot water hole 6012 flows to the water return hole 6013 through the water return groove 6021 and is drawn out from the water return hole 6013.

When the first movable valve plate 602 and the fixed valve plate 601 are located at the second relative position, the first cold water hole 6011 is communicated with the second water mixing hole 6022, the first hot water hole 6012 is blocked by the first movable valve plate 602, and the first water mixing hole 6014 is communicated with the third water mixing hole, as shown in fig. 12 and with reference to fig. 8 to 10. In this state, the water in the cold water flow passage 1 can flow into the second mixing hole 6022, and the water in the hot water flow passage 2 is blocked on the second surface 602a of the first movable valve plate 602.

When the first movable valve plate 602 and the fixed valve plate 601 are located at the third relative position, the first cold water hole 6011 is blocked by the first movable valve plate 602, the first hot water hole 6012 is communicated with the second water mixing hole 6022, and the first water mixing hole 6014 is communicated with the third water mixing hole, as shown in fig. 13 and referring to fig. 8 to 10. In this state, the water in the hot water flow passage 2 can flow into the second mixing hole 6022, and the water in the cold water flow passage 1 is blocked by the second surface 602a of the first movable valve plate 602.

When the first movable valve plate 602 and the fixed valve plate 601 are located at the fourth relative position, the first cold water hole 6011 and the first hot water hole 6012 are both communicated with the second water mixing hole 6022, and the first water mixing hole 6014 is communicated with the third water mixing hole, as shown in fig. 14-16 and with reference to fig. 8-10. And in the fourth relative position (that is, on the premise that the first cold water hole 6011 and the first hot water hole 6012 are both communicated with the second water mixing hole 6022 and the first water mixing hole 6014 is communicated with the third water mixing hole), the ratio of the communication area between the first cold water hole 6011 and the second water mixing hole 6022 to the communication area between the first hot water hole 6012 and the second water mixing hole 6022 may be adjusted by pivoting the first movable valve plate 602 around the pivot axis c (small angle). That is, in the fourth relative position, the ratio of the communication area of the first cold water hole 6011 with the second mixing hole 6022 to the communication area of the first hot water hole 6012 with the second mixing hole 6022 is changed in response to the first movable valve plate 602 pivoting about the pivot axis c, thereby adjusting the water temperature of the mixing flow passage 3.

When the first movable valve plate 602 and the fixed valve plate 601 are at the fifth relative position, both the first cold water hole 6011 and the first hot water hole 6012 are communicated with the water return tank, as shown in fig. 17 and with reference to fig. 8 to 10. In this state, the water in the cold water channel 1 and the water in the hot water channel 2 are blocked by the first movable valve plate 602.

When the second movable valve plate 603 and the first movable valve plate 602 are located at the sixth relative position, the second water mixing hole 6022 and the third water mixing hole 6023 are both communicated with the water mixing groove 6031, as shown in fig. 18 and 19 with reference to fig. 8 to 10. In this state, the water mixing groove 6031 connects the second water mixing hole 6022 and the third water mixing hole 6023. If the first movable valve plate 602 and the fixed valve plate 601 are at the second relative position, the third relative position, or the fourth relative position, the cold water and/or the hot water flowing into the second water mixing hole 6022 sequentially flows through the water mixing groove 6031, the third water mixing hole 6023, and the water mixing groove 6031 to the water mixing flow passage 3. If the first movable valve plate 602 and the fixed valve plate 601 are located at the first relative position or the fifth relative position, although the second water mixing hole 6022, the water mixing groove 6031, the third water mixing hole 6023 and the first water mixing hole 6014 are sequentially communicated, water in the cold water flow passage 1 and the hot water flow passage 2 cannot enter the second water mixing hole 6022, and therefore no water flows into the water mixing flow passage 3. In the sixth relative position (i.e. on the premise that the second and third mixing holes 6022 and 6023 are both communicated with the mixing groove 6031), the communication area between the second mixing hole 6022 and the mixing groove 6031 can be adjusted by moving the second movable valve plate 603 in the first direction f 1. That is, in the sixth relative position, the communication area of the second mixing hole 6022 and the mixing groove 6031 changes in response to the movement of the second movable valve plate 603 in the first direction f1, thereby adjusting the flow rate of the mixing flow passage 3.

When the second movable valve plate 603 and the first movable valve plate 602 are in the seventh relative position, the second water mixing hole 6022 is blocked by the second movable valve plate 603, as shown in fig. 20 and with reference to fig. 8 to 10. In this state, even if the first movable valve plate 602 and the fixed valve plate 601 are located at the second relative position, the third relative position or the fourth relative position, and the third water mixing hole 6023 is communicated with the water mixing groove 6031, because the second water mixing hole 6022 is blocked by the second movable valve plate 603, the water flowing to the water mixing groove 6031 is blocked by the third surface 602b of the first movable valve plate 602, and cannot flow to the third water mixing hole 6023. It can be seen that when the second movable valve plate 603 and the first movable valve plate 602 are located at the seventh relative position, the water in the cold water flow passage 1 and the water in the hot water flow passage 2 will not enter the mixed water flow passage 3, and will not reach the water use terminal 5. In another embodiment, when the second movable valve plate 603 and the first movable valve plate 602 are located at a specific relative position, the third mixing hole 6023 is blocked by the second movable valve plate 603, and can also block water from entering the mixing flow passage 3.

As can be seen from the above description, a user can not only cut off the water flow flowing to the mixing flow channel 3 by pivoting the first movable valve plate 602 to adjust the relative position between the first movable valve plate 602 and the fixed valve plate 601, but also cut off the water flow flowing to the mixing flow channel 3 by moving the second movable valve plate 603 or/and pivoting the first movable valve plate 602 to adjust the relative position between the second movable valve plate 603 and the fixed valve plate 601. Therefore, if the water flow is separated at the upstream side of the water mixing flow channel 3 by the water mixing valve 6, only one of the following two conditions needs to be satisfied: the first movable valve plate 602 and the fixed valve plate 601 of the mixing valve 6 have the fifth relative position, and the second movable valve plate 603 and the first movable valve plate 602 are located at the seventh relative position.

Obviously, on the basis of the above technical solutions, those skilled in the art are fully capable of selecting specific structures and specific positions of the first cold water hole 6011, the first hot water hole 6012, the water return hole 6013, and the first water mixing hole 6014 on the fixed valve plate 601, the water return groove 6021, the second water mixing hole 6022, and the third water mixing hole 6023 on the first movable valve plate 602, and the water mixing groove 6031 on the second movable plate to achieve the above functions. Referring to fig. 8, fig. 9 and fig. 10 again, in the present embodiment, the following design is adopted:

the first orifice 6011a of the first cold water hole 6011 on the first surface 601a, the second orifice 6012a of the first hot water hole 6012 on the first surface 601a, the third orifice 6013a of the return water hole 6013 on the first surface 601a, the fourth orifice 6022a of the second water mixing hole 6022 on the second surface 602a, and the first notch 6021a of the return water groove 6021 on the second surface 602a are all disposed on the same cylindrical surface, that is, the cylindrical surface passes through the orifices and notches. The axis of the cylindrical surface coincides with the pivot axis c. This allows each corresponding aperture or slot to be selectively connected or disconnected when first movable valve plate 602 is pivoted.

Further, the first, second, third, and fourth orifices 6011a, 6012a, 6013a, 6022a are all arc-shaped orifices about the pivot axis c, and the first notch 6021a is an arc-shaped notch about the pivot axis c, so as to facilitate control of the opening area of the corresponding orifice or notch.

In this embodiment, the fifth orifice 6014a of the first mixing hole 6014 at the first surface 601a and the sixth orifice 6023a of the third mixing hole 6023 at the second surface 602a are both disposed on the pivot axis c. Therefore, when the first movable valve plate 602 pivots to any angle about the pivot axis c, the third water mixing hole 6023 is always communicated with the first water mixing hole 6014.

In this embodiment, the third mixing holes 6023 are also arranged on the pivot axis c at the seventh hole 6023b of the third surface 602 b. The water mixing tank 6031 includes a first tank 6031a and a second tank 6031b arranged in a first direction f1, and the first tank 6031a includes a middle tank 6031a1 in the first direction f1, and a left tank 6031a2 and a right tank 6031a3 at opposite sides of the middle tank 6031a 1.

As can be understood from the above description, it is only meaningful to communicate the second mixing hole 6022 and the third mixing hole 6023 by the mixing groove 6031 of the second movable valve plate 603 when the first movable valve plate 602 and the fixed valve plate 601 are in the second, third, or fourth relative positions (the second movable valve plate 603 and the first movable valve plate 602 are in the sixth relative position). Because the second movable valve plate 603 does not pivot along with the first movable valve plate 602 in this embodiment, when the first movable valve plate 602 and the fixed valve plate 601 are located at the second, third, and fourth different relative positions, a large angle change exists between the first movable valve plate 602 and the second movable valve plate 603, and if it is ensured that the first movable valve plate 602 and the fixed valve plate 601 are located at any one of the second relative position, the third relative position, and the fourth relative position, the second mixing hole 6022 and the third mixing hole 6023 can be communicated by moving the second movable valve plate 603 in the second direction f2 through the mixing groove 6031, and the mixing groove 6031 generally needs to have a large size. In the embodiment, the water mixing groove 6031 is designed to have the above structure, so that the circumferential size of the water mixing groove 6031, especially the first groove body 6031a, is increased, and the requirements are met.

Further, the first orifice 6011a, the second orifice 6012a, and the third orifice 6013a are arranged in order of being adjacent (abutting and spaced apart) in a direction around the pivot axis c. The first groove 6031a is an arc groove. The second water mixing hole 6022 is provided with an eighth hole 6022b arranged on the third surface 602b, and the pivoting radian of the eighth hole 6022b between the second relative position and the fourth relative position is less than or equal to the radian of the circular arc groove body.

A worm wheel 607 with an outer gear ring structure is fixed on the periphery of the first movable valve plate 602, and the first motor 605 is connected to a worm 608 engaged with the worm wheel 607 to drive the first movable valve plate 602 to pivot around the pivot axis c. In use, the first motor 605 drives the worm 608 to pivot, the worm 608 drives the worm wheel 607 engaged therewith to pivot, and the worm wheel 607 drives the first movable valve plate 602 fixed thereto to pivot, so as to adjust the relative position of the first movable valve plate 602 and the fixed valve plate 601.

The mixing valve 6 further comprises a valve housing 604, the valve housing 604 has a guide groove 6041 extending in the first direction f1, and the second movable blade 603 is movably embedded in the guide groove 6041. A fifth surface 603b of the second movable valve plate 603 facing away from the fourth surface 603a is formed with a wheel groove 6032 extending in the second direction f 2. The second electric motor 606 is connected to an eccentric 609, which eccentric 609 is movably arranged in a wheel channel 6032 in such a way that it can move in the aforementioned second direction f2, wherein the second direction f2 is perpendicular to the pivot axis c and the first direction f1, respectively. In use, the second motor 606 drives the eccentric wheel 609 to rotate around the eccentric axis of the eccentric wheel 609, and when the eccentric wheel 609 eccentrically rotates, the outer circumferential surface of the eccentric wheel 609 presses the groove wall of the groove 6032, so as to drive the cover valve housing 604 to reciprocate along the guide groove 6041 in the first direction f1, thereby adjusting the relative position of the second movable valve plate 603 and the first movable valve plate 602.

In this embodiment, the water system further includes a housing 9, at least a portion of the flow path sections of the cold water flow path 1, the hot water flow path 2, the mixed water flow path 3 and the return water flow path 4 are disposed in the housing 9, and the mixing valve 6 is also mounted on the housing 9. Wherein, the cold water flow passage 1 and the hot water flow passage 2 are both provided with water inlet connectors with external threads extending out of the shell 9 so as to be conveniently connected with an external cold water pipe and a hot water tank. The mixed water flow passage 3 and the backwater flow passage 4 are both provided with water outlet joints extending out of the shell 9 so as to be conveniently connected with an external backwater pipe and the water using terminal 5.

In addition, in order to automatically control the water temperature, the flow rate and the backwater in the mixed water flow passage 3, the water system is also provided with a water temperature sensor 7, a first electric heater, a water supply switch, a temperature setting element and a controller which are not shown in the figure. The water temperature sensor 7 is connected to the hot water flow passage 2 and is configured to obtain a current first water temperature of the hot water flow passage 2. The first electric heater is connected to the hot water flow passage 2 for heating the hot water flow passage 2 to raise the temperature of the hot water flow passage 2. The controller is respectively connected with the first motor 605, the second motor 606, the water temperature sensor 7, the first electric heater, the water supply switch and the water temperature setting element in a communication way, and is used for receiving relevant signals of the water supply switch, the water temperature setting element and the water temperature sensor 7 and controlling the working states of the first motor 605, the second motor 606 and the first electric heater.

Further, the present embodiment provides a water supply method of the water using system, the water supply method including:

s101, the water system receives an opening operation acting on a water supply switch.

In this embodiment, the water supply switch is a rotatable knob ON which "ON" and "OFF" indicating ON and OFF states are printed, and a housing 9 ON the periphery of the knob is printed. In the initial state, the knob is in the OFF position of "OFF". The user needs to discharge water from the faucet as the water service terminal 5 and turns the knob from the "OFF" position to the "ON" position.

In another embodiment, the water supply switch is also a knob switch except that the knob switch is printed with "OFF" indicating an OFF state and "small", "medium", and "large" indicating a flow rate of the water. When the knob switch is rotated to the angular positions of "small", "medium" and "large", it indicates that the corresponding flow rate of water is desired to be obtained from the water usage terminal 5 (or the mixing flow passage 3), and the water supply switch is not only in the open state, but also indicates the desired outlet flow rate desired to be obtained. It can be seen that the turning on of the water supply switch 9 by the user is performed by turning the knob switch to any one of the positions "small", "medium", and "large".

In yet another embodiment, the water supply switch is also a knob switch, except that this knob switch is printed with "OFF" indicating an OFF state, and "25" or "45" or "60" indicating the temperature of the used water. When the knob switch is rotated to the angular position of "25 ℃" or "45 ℃" or "60 ℃", it indicates that water at a corresponding temperature is to be supplied from the mixing water flow passage 3 to the water use terminal 5, and the water supply switch is not only in the open state but also indicates a desired water temperature to be supplied, and the water supply switch and the water temperature setting element are the same component, which is not limited in this application. It can be seen that when the user rotates the knob switch to any one of the aforementioned "25 ℃ or" 45 ℃ or "60 ℃, the turning-on operation of the water supply switch is performed.

In response to the above opening operation, the water system obtains the target water temperature of the mixed water flow passage 3 from the water temperature setting element and obtains the current first water temperature of the hot water flow passage 2 from the water temperature sensor 7S 102.

In this embodiment, the water temperature setting member is another knob disposed side by side with the above-mentioned knob type water supply switch. When the user rotates the knob type water temperature setting element to different angular positions, it indicates that the user wants to obtain a corresponding desired water temperature from the mixing water flow passage 3.

Normally, before the water supply switch is turned on (before S101), the user operates the water temperature setting element to set the target water temperature of the mixing water flow passage 3, and then turns on the water supply switch. If the user does not perform the operation of setting the water temperature on the water temperature setting element before turning on the water supply switch, the water use system may acquire the previously set water temperature from the water temperature setting element as the target water temperature. For example, before the water supply switch is selected to be in the "ON" state by the user, the water temperature setting element 8 is not rotated, and the water temperature indicated by the water temperature setting element is at the time of "45 ℃", so that after the water supply switch is selected to be in the "ON" state by the user, the target water temperature of the mixing water flow passage 3 obtained by the controller from the water temperature setting element is at the time of "45 ℃".

In another embodiment, the water supply switch and the water temperature setting element are integrated in the same touch screen.

In another embodiment, the water supply switch and the water temperature setting element are both provided with voice recognition modules, and the on or off operation of the water supply switch and the operation of the water temperature setting element are voice-controlled operations, so that the water supply switch can be turned on or off through voice commands, and the target water temperature of the water mixing flow passage 3 can be set.

S103, if the first water temperature is less than the target water temperature, and the temperature difference between the target water temperature and the first water temperature is greater than the preset temperature difference threshold, controlling the first movable valve plate 602 and the fixed valve plate 601 of the water mixing valve 6 to be at the first relative position, so as to send the cooling water in the hot water flow channel 2 to the return water flow channel 4, so that the upstream uncooled hot water can rapidly flow into the first hot water hole 6012.

If the first water temperature is less than the target water temperature, and the temperature difference between the target water temperature and the first water temperature is less than the temperature difference threshold, the first movable valve plate 602 and the fixed valve plate 601 of the water mixing valve 6 are controlled to be located at the third relative position, the second movable valve plate 603 and the first movable valve plate 602 of the water mixing valve 6 are controlled to be located at the sixth relative position, and the first electric heater is controlled to heat the hot water flow passage 2, so that the hot water flow passage 2 supplies water to the water mixing flow passage 3 at a corresponding flow rate. Therefore, when the difference between the target water temperature and the first water temperature is not large, the cooling water in the hot water flow passage 2 is heated by the first electric heater to raise the temperature, so as to ensure that the water temperature in the mixed water flow passage 3 is the target water temperature.

If the first water temperature is greater than the target water temperature and the second water temperature is less than the target water temperature, the first movable valve plate 602 and the fixed valve plate 601 of the mixing valve 6 are controlled to be located at the fourth relative position, the second movable valve plate 603 and the first movable valve plate 602 of the mixing valve 6 are controlled to be located at the sixth relative position, and the specific matching angle of the first movable valve plate 602 and the fixed valve plate 601 at the fourth relative position and the specific matching angle of the second movable valve plate 603 and the first movable valve plate 602 at the sixth relative position are determined according to the first water temperature, the second water temperature and the target water temperature; wherein the second water temperature is the current water temperature of the cold water flow passage 1. The purpose of this strategy is also to ensure that the water temperature of the mixing channel 3 is the target water temperature.

If the first water temperature is equal to the target water temperature, the first movable valve plate 602 and the fixed valve plate 601 of the mixing valve 6 are controlled to be at the second relative position, and the second movable valve plate 603 and the first movable valve plate 602 of the mixing valve 6 are controlled to be at the sixth relative position.

Claims (10)

1. The utility model provides a take return water, temperature to adjust and flow control function's muddy water valve which characterized in that includes: fixed valve block, first movable valve block and second movable valve block, wherein:

the first movable valve plate is abutted against the fixed valve plate in a manner of pivoting around a pivot axis, the second movable valve plate is abutted against the first movable valve plate in a manner of moving in a first direction, and the pivot axis is perpendicular to the first direction;

the fixed valve plate is provided with a first surface attached to the first movable valve plate, the first movable valve plate is provided with a second surface attached to the fixed valve plate and a third surface attached to the second movable valve plate, and the second movable valve plate is provided with a fourth surface attached to the first movable valve plate;

the fixed valve plate is provided with a first cold water hole, a first hot water hole, a first water mixing hole and a water return hole which extend to the first surface in a penetrating manner, the first movable valve plate is provided with a second water mixing hole and a third water mixing hole which extend to the third surface from the second surface in a penetrating manner, the first movable valve plate is provided with a water return groove which is recessed inwards from the second surface, and the second movable valve plate is provided with a water mixing groove which is recessed inwards from the fourth surface;

when the first movable valve plate and the fixed valve plate are located at a first relative position, the first hot water hole and the water return hole are both communicated with the water return groove, and the first cold water hole is blocked by the first movable valve plate;

when the first movable valve plate and the fixed valve plate are located at a second relative position, the first cold water hole is communicated with the second water mixing hole, the first hot water hole is blocked by the first movable valve plate, and the first water mixing hole is communicated with the third water mixing hole;

when the first movable valve plate and the fixed valve plate are located at a third relative position, the first cold water hole is blocked by the first movable valve plate, the first hot water hole is communicated with the second water mixing hole, and the first water mixing hole is communicated with the third water mixing hole;

when the first movable valve plate and the fixed valve plate are located at a fourth relative position, the first cold water hole and the first hot water hole are both communicated with the second water mixing hole, and the first water mixing hole is communicated with the third water mixing hole; and in the fourth relative position, the ratio of the communication area of the first cold water hole and the second water mixing hole to the communication area of the first hot water hole and the second water mixing hole changes in response to the first movable valve plate pivoting about the pivot axis;

when the second movable valve plate and the first movable valve plate are located at a sixth relative position, the second water mixing hole and the third water mixing hole are both communicated with the water mixing groove; and in the sixth relative position, the communication area of the second water mixing hole and the water mixing groove changes in response to the second movable valve plate moving in the first direction.

2. The mixing valve of claim 1, wherein when the first movable valve plate and the fixed valve plate are in a fifth relative position, the first cold water hole and the first hot water hole are both communicated with the water return groove.

3. The mixing valve according to claim 1, wherein the second water mixing hole or/and the third water mixing hole is/are blocked by the second movable valve plate when the second movable valve plate and the first movable valve plate are in a seventh relative position.

4. The mixing valve according to any one of claims 1 to 3, wherein the first orifice of the first cold water hole at the first surface, the second orifice of the first hot water hole at the first surface, the third orifice of the water return hole at the first surface, the fourth orifice of the second water mixing hole at the second surface, and the first notch of the water return groove at the second surface are all arranged on a same cylindrical surface, and an axial line of the cylindrical surface coincides with the pivot axis.

5. The mixing valve of claim 4, wherein the fifth orifice of the first water mixing hole on the first surface and the sixth orifice of the third water mixing hole on the second surface are all disposed on the pivot axis.

6. The mixing valve as claimed in claim 5, wherein the third mixing hole is arranged on the pivot axis at a seventh opening of the third surface, and the mixing tank comprises a first tank body and a second tank body arranged along the first direction, and the first tank body comprises a middle tank section in the first direction and a left tank section and a right tank section on opposite sides of the middle tank section.

7. The mixing valve as claimed in claim 6, wherein the first, second and third orifices are arranged adjacently in sequence in the direction around the pivot axis, the first groove is a circular arc groove, the second mixing hole has an eighth orifice on the third surface, and the arc of pivot of the eighth orifice between the second and fourth relative positions is less than or equal to the arc of the circular arc groove.

8. The mixing valve according to claim 4,

a worm wheel with an outer gear ring structure is fixedly arranged on the periphery of the first movable valve plate in a escaping mode, and the first motor is connected with a worm meshed with the worm wheel so as to drive the first movable valve plate to pivot around the pivot axis;

still include the valve casing, the valve casing has the edge the groove is moved in leading that the first direction extends, second movable valve block activity is inlayed and is located in leading the groove, deviating from of second movable valve block the fifth surface on fourth surface system has the race that extends in the second direction, and the eccentric wheel is connected to the second motor, the eccentric wheel with can the mode activity that moves in the second direction arrange in the race, wherein, the second direction respectively with the pivot axis with the first direction is perpendicular.

9. A water use system comprising:

a shell body, a plurality of first connecting rods and a plurality of second connecting rods,

a cold water flow passage, a hot water flow passage, a mixed water flow passage and a return water flow passage which are arranged in the shell, and

a hot and cold water valve as claimed in any one of claims 1 to 8 disposed within the housing;

the cold water flow channel, the hot water flow channel, the mixed water flow channel and the return water flow channel are respectively communicated with the first cold water hole, the first hot water hole, the first water mixing hole and the return water hole.

10. The water system of claim 9 wherein said cold water flow path and said hot water flow path each have a water inlet fitting extending outside said housing, and wherein said mixing water flow path and said return water flow path each have a water outlet fitting extending outside said housing.

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