TW201640040A - Valve device with single-side constant flow and fluid supplying system thereof - Google Patents

Abstract

A valve device and a fluid supplying system thereof. The valve device is provided with a first fluid inlet end, a second fluid inlet end and a fluid outlet end; an operating area of an operating mechanism is divided into a mixing degree adjusting area for adjusting the mixing degree of a first fluid and a second fluid and a flow adjusting area that is always capable of adjusting the flow of the fluid outlet end of the valve device in the whole mixing degree adjusting area; the mixing degree adjusting area is divided into a first fluid area in which the first fluid is only drained from the fluid outlet end, a mixing area in which a mixed fluid of the first fluid and the second fluid is drained from the fluid outlet end and a second fluid area in which the second fluid is only drained from the fluid outlet end; and the flow of the operating mechanism at a minimum stop position in the flow adjusting area of the first fluid area is greater than zero, and the flow of the operating mechanism at a minimum stop position in the flow adjusting area of the second fluid area is equal to zero. The valve device and the thermal fluid supplying system thereof facilitate the conservation of fluid passing through the valve device, and facilitate normal use of a thermal fluid supplying device.

Description

One-side constant flow valve device and fluid supply system thereof

The invention belongs to the field of valves, and particularly relates to the technical field of valve cores used in faucets, in particular to a single-handle double-connected water-saving valve core.

As one of the most commonly used control devices in production and life, valves are used to control the flow of fluids, such as controlling the type of fluid passing through and controlling the flow of fluid through. The faucets used by ordinary people to understand and contact the most are the faucets used in daily life. The faucet can be generally divided into a screw type, a wrench type, a lift type, and an induction type according to the opening method. The screw handle is opened by screwing, and when it is opened, it is rotated a lot of turns, and the flow rate of the water is adjusted by the number of turns of the screw. The more the number of turns, the larger the flow rate; the wrench handle is opened by the level rotation, and the angle of opening is used. The size is used to control the flow rate of water. The larger the opening angle is, the larger the flow rate is. The maximum angle is usually 90°. The lift-type handle is opened by vertical lifting. Similarly, the opening angle is used to control the water flow. The opening angle is larger. The larger the flow rate, the smaller the angle is usually less than 45°; the inductive faucet only needs to reach under the faucet to automatically discharge water through induction, but usually the outlet flow is fixed and cannot be adjusted.

The single-handle double spool is the most common faucet spool in life and production, especially the ceramic single-handle double spool. It is the hot and cold water faucet valve commonly used in kitchens and bathrooms. The valve core comprises a sealing piece composed of a fixing piece and a moving piece, and the operating mechanism is a control handle for controlling the sliding sliding of the moving piece relative to the fixed piece. The fixing piece is provided with a cold water inlet hole, a hot water inlet hole and a water outlet hole, and the moving piece is provided with a passage. The passage is configured to communicate the hot water inlet hole and the water outlet hole, or the cold water inlet hole and the water outlet hole, or the hot water inlet hole, the cold water inlet hole and the water outlet hole when the movable piece is sealed and sliding relative to the fixed piece. Taking the single-handle double-spool valve of the lift type as an example, the normal operation standard in China is that the control handle is turned left to the vicinity of the limit position, and only the hot water is discharged from the outlet hole. At this time, the water outlet only passes through the hot water inlet hole. The passage is connected; the control handle turns right to the vicinity of the limit position, and only the cold water is discharged from the outlet hole. At this time, the outlet hole only communicates with the cold inlet hole through the passage; and between the two is a mixed water area where the hot and cold water is mixed. At the same time, the water outlet hole communicates with the cold and hot water inlet holes through the passage, and the control handle turns to the left. The proportion of hot water in the cold and hot water inlet ratio is larger, and the hotter the water, until it becomes pure hot water; the handle is turned to the right. The greater the proportion of cold water in the ratio of cold to hot water, the colder the water until it becomes pure cold water. In the left and right rotation of the control handle, the flow rate of the water at the moment is adjusted by the upward lifting angle of the lifting handle, and the larger the angle, the larger the flow rate.

The single-handle double valve core of the ceramic piece has the advantages of convenient and flexible adjustment of hot and cold water, smooth and light operation of the control handle, good sealing of the ceramic piece (fixed piece, moving piece) and long service life of the valve core.

However, no matter how the control modes of the various valves are changed, especially the various faucets used in daily life, there are only two fixed flow adjustment positions, the closed position of the closed water and the maximum adjustment limit position of the outlet flow, only in these two Position, the user can quickly and easily adjust the operating mechanism in place, the corresponding flow is adjusted to a fixed size (for the most common single-handle double spool, it is the closed position, and the maximum flow up to the highest limit point on the handle) position). The user needs to adjust the operating mechanism slowly and carefully to achieve any flow between the closing and maximum flow rates (for the most common single-handle double spool, it is necessary to repeatedly adjust the handle angle up and down). However, in real life, the traffic required by the user is exactly the flow between the maximum traffic and the maximum traffic. When the user spends a long time adjusting the operating mechanism to the required traffic, this time has already caused a lot of traffic. Waste of water resources.

At the same time, in daily use, different water points/uses are different for proper water flow: for example, toilet hand washing is usually a suitable flow A, which can meet the cleaning needs without causing water. Excessive waste; while kitchen washing fruits and vegetables may be more suitable for flow B, and it is more suitable to wash clothes on the living balcony. Generally speaking, the flow rates A, B, and C are not the same, and the user cannot quickly and accurately adjust the operating mechanism in place under various water points/uses to achieve the required flow control.

In addition, for controlling the flow of hot fluid through a valve, it is common to control the flow of hot water, corresponding to a hot fluid supply device that supplies a hot fluid (eg, hot water), a hot fluid outlet of the hot fluid supply device, and a hot fluid of the valve device. The inlet end is connected, and the common hot fluid supply devices in daily life are various water heaters, such as gas water heaters and electric water heaters. There is a section of piping between the hot fluid supply device (such as a water heater) and the valve. When the hot water is used, the hot water remaining in the pipeline and in the water tank of the water heater cannot be utilized after the valve is closed, and the heat is wasted. At the same time, the hot water remaining in the water tank of the water heater will also cause the scale of the water tank to be rapidly generated, reducing the service life and heating efficiency of the water heater. In addition, in the case of using hot water, when the hot water is suspended, after the valve is closed, since the water tank still absorbs a high amount of heat, the high heat will continue to continue to heat the hot water remaining in the water tank. The water in the water tank will be heated to a temperature significantly higher than the original control temperature. When the valve is used to continue to use hot water, when the remaining hot water in the water tank is discharged from the valve, the user will notice that the temperature of the water is significantly higher. High, affecting the experience of use, and even causing burns in severe cases. Moreover, for the common single-handle double spool, the hot water control area is on the left side, and the cold water control area is on the right side. After the hot water is used, the user can directly turn off the handle to turn off the hot water; In the user, the user often forgets to rotate the handle to the cold water control area after turning off the hot water, so that the water heater will be directly activated when the next lift handle opens the valve. If hot water is not needed at this time, hot water will be wasted. .

At the same time, fluids are currently controlled by valves, in particular thermal fluids, for fluid supply devices that supply fluid to valves, in particular thermal fluid supply devices that supply hot fluids, since the temperature of the hot fluid (eg hot water) can only be supplied to the hot fluid. The device (for example, a water heater) is centrally controlled, and the temperatures of the different water points are uniform, and the fluid supply temperature of the hot fluid supply device (e.g., water heater) cannot be controlled by the valves of the respective water points. In daily life, the requirements for water temperature are different at different water points/uses. For example, washing the bathroom is a certain temperature A is usually appropriate; while kitchen washing may be more suitable for temperature D, bathroom bath is the temperature E is more appropriate. Under the prior art, the user can only repeatedly adjust the hot fluid supply temperature repeatedly in the hot fluid supply device (such as a water heater), or roughly control the outlet water temperature by substantially adjusting the cold water and hot water mixing ratio on the valve.

China's fresh water resources are scarce. With the increasing shortage of water resources, the problem of water conservation in water points such as kitchens and bathrooms is becoming more and more serious. There is an urgent need for a valve core with better water saving effect and more convenient and flexible use.

One of the objects of the present invention is to provide a valve device which is advantageous for saving fluid passing through the valve device. At the same time, the valve device can provide feedback information for the fluid supply device, particularly the hot fluid supply device, and facilitate the realization of the fluid through the valve. Control of the supply device, particularly control of the hot fluid supply temperature of the thermal fluid supply device; and when used in conjunction with the thermal fluid supply device, can facilitate normal use of the thermal fluid supply device.

Another object of the present invention is to provide a thermal fluid supply system that facilitates the normal use of the thermal fluid supply of the thermal fluid supply system.

A third object of the present invention is to provide a fluid supply system using the valve device of the present patent.

The fourth object of the present invention is to provide a single-handle double-connected water-saving valve core, which is beneficial to save water and facilitate the normal use of the water heater.

The object of the present invention is achieved by the following technical solutions:

A valve device comprising a valve device that controls a fluid passage state when a fluid passes, and an operating mechanism that achieves the aforementioned control by operating in an operating region thereof, the valve device having a first fluid inlet end, a second fluid inlet end, and a fluid outlet The operating area of the operating mechanism is divided into a mixing degree adjusting area for adjusting the degree of mixing of the first fluid and the second fluid, and a flow regulating area for adjusting the flow rate of the fluid outlet end thereof in the mixing degree adjusting area, and the mixing degree adjusting area includes a necessary The fluid outlet end only exits the first fluid region of the first fluid, and the fluid outlet end only exits the second fluid region of the second fluid, and the optional fluid outlet end exits the mixed region of the first fluid and the second fluid mixed fluid, The flow rate of the minimum stop of the operating mechanism in the flow regulating region of the first fluid region is greater than zero, and the flow of the minimum stop in the flow regulating region of the second fluid region is equal to zero.

In the solution of the present invention, the first fluid and the second fluid may be the same kind of fluid, or different kinds of fluids, such as water and other fluids, or water, etc.; and at the same time, may be different The same type of fluid in the state may also be the same type of fluid in the same state, such as cold water and hot water, or both cold water or hot water. The cold and heat are only relative in relative terms, and the absolute meaning is that the hot water is only water with a higher temperature than the cold water. Cold water usually refers to normal temperature water. The most common is tap water in daily life. At the same time, cold water can also be lower temperature water obtained by further cooling normal temperature water. Hot water, in general, refers to water that is heated to a temperature that is further heated by normal temperature water. In addition, the first fluid and the second fluid are only used to distinguish two fluids, and are not absolutely defined. For example, for cold water and hot water, cold water can be used as the first fluid, and hot water is relatively the second fluid. Conversely, hot water can also be used as the first fluid, and cold water naturally becomes the second fluid. In the mixing degree adjustment region, the mixing region is optional, that is, the fluid outlet end can only discharge the first fluid or the second fluid, but not the mixed fluid; and in the mixing degree, when the first fluid accounts for 100% When the second fluid accounts for 0%, that is, the first fluid region of the first fluid is discharged at the fluid outlet end; conversely, when the first fluid accounts for 0% and the second fluid accounts for 100%, that is, the fluid outlet end only A second fluid region of the second fluid. The flow adjustment area refers to an operable physical range in which the operating mechanism adjusts the flow, including the minimum adjustment position (minimum stop/minimum stop position), the adjustment area, and the maximum adjustable position (maximum stop/maximum) Stop position); likewise, the handle placement position refers to an operable physical position of the handle to adjust the flow; for the lift type open tap (typically a single handle double valve), the lift handle By vertically lifting up, the angle of the raised angle is used to control the flow of water. When the angle is zero, the faucet is closed, and the handle position is the lower stop position, which is the minimum adjustment position (minimum stop/minimum stop position); When the lifting angle is maximum (the flow rate is usually the largest at this time), the handle position is the upper stop position, which is the maximum adjustment position (maximum stop position/maximum stop position). Similarly, the wrench handle is opened by level rotation, and the flow angle is controlled by the angle of opening. The larger the opening angle is, the larger the flow rate is. The point at which the angle is 0° (usually the closed position) is the minimum adjustment position (minimum The bit/minimum stop position), and the other point with the largest angle (usually the maximum flow position) is the maximum adjustment position (maximum stop/maximum stop position).

According to the solution of the present invention, compared with the existing various valves, in particular, compared with the existing conventional single-handle double-spool, the flow regulating area has the closed position where the flow rate of the minimum stop common to the prior art is equal to zero, and the position of the large adjustment value. In addition, there is a minimum stop for the extreme position of a fixed flow between the two. The difference from the existing valve is that the flow rate of the minimum stop position of the operating mechanism of the existing valve in the first and second fluid regions is equal to zero, that is, both positions are closed positions, and the patent will A control position that changes to a specific flow with a flow greater than zero. For example, the flow rate of this minimum stop is designed to be suitable for hand washing flow A, and the operating mechanism can be simply and quickly placed at this position to obtain a flow suitable for hand washing. Take the common single-handle double spool as an example. The leftmost lowermost operating position of the handle of the existing single-handle double spool (usually the first fluid area, such as the closed position of hot water) and the lowest rightmost operation. The position (usually the second fluid area, such as the closed position of the cold water) is the closed position, and the patent places the handle in the leftmost lowermost operating position to obtain a specific flow rate A suitable for hand washing, and the handle is placed at the most The lowermost operating position on the right is the same as the existing single-handle double spool; the reverse is also the same, this patent can also put the handle in the rightmost lowermost operating position to get the specific flow A suitable for hand washing. The lowermost operating position with the handle placed at the leftmost position is the same as the existing single-handle double spool.

Based on the foregoing design, taking daily water as an example, the present invention can design different minimum stops with the flow adjustment area of the operating mechanism in the first fluid region according to different water points/use occasions, for example, forming a flow rate corresponding to the flow rate suitable for the washroom of the restroom. A. Suitable for kitchen washing fruit and vegetable flow B, flow rate C suitable for living balcony washing, etc., the series of valves are applied to their respective water points/uses to achieve the most user-friendly and convenient use while maximizing water saving. .

Further, since the valve of the present invention has a specific state of a specific flow rate in addition to the closed state and the maximum flow state, the specific state of the specific flow rate can become the identification signal/control signal of the valve, and the fluid supply device can The valve is identified based on the specific flow information, thereby correspondingly taking corresponding control operations. Taking the water temperature control device (for example, a water heater) as an example, when the user washes the hand in the bathroom, the operating mechanism is first directly turned to the specific state to start the water heater, and the water heater can detect (sensing) the valve with the toilet. The specific signal corresponding to the specific flow rate A (such as the flow value or dynamic pressure / static pressure ratio or dynamic pressure / full pressure ratio or static pressure / dynamic pressure ratio, etc.), the valve identified as the toilet is washing the hand, directly the water temperature Adjusted to the pre-made temperature A suitable for hand washing; and when the user washes the dishes in the kitchen, the operating mechanism is first directly transferred to the specific state, the water heater is activated, and the water heater receives a specific signal of the specific flow D of the valve of the kitchen, and recognizes The kitchen valve is subjected to a dishwashing operation, and the outlet water temperature is directly adjusted to a pre-made temperature D suitable for dishwashing; similarly, the bathroom bath is also the same.

Meanwhile, the prior art hot fluid supply device (for example, a gas water heater) has a minimum flow rate for shutting down its heating system, below which the water heater will turn off the heating system (extinguish), and the operating mechanism of the present invention can be The flow rate of the minimum stop of the flow regulation area of a fluid zone (hot water zone) is greater than zero. When the flow rate of this minimum stop is less than the minimum flow of the water heater shutdown, the heating system in the water heater will be closed, and the valve to the water heater The remaining hot water in the road and the water heater tank can still be discharged from the valve, and the subsequent cold water will also enter the water tank and cool the water tank, thereby achieving full utilization of the hot water and solving the fouling of the water tank and continuing to use the heat. Water, the temperature of some hot water is significantly higher.

Alternatively, the flow rate of the maximum stop of the flow regulating region of the first fluid region of the operating mechanism and the flow rate of the maximum stop of the flow regulating region of the second fluid region are not equal. In this scheme, the quick-opening valve core is a common faucet valve core in daily life and production, especially the ceramic chip quick-opening valve core, which is a commonly used faucet valve core. The ceramic chip quick-opening valve core has the advantages that the control handle is smooth and light, the ceramic piece (fixing piece, moving piece) is sealed, and the valve core has a long service life. On the other hand, since the control handle is smooth and light, it is easy to open the water flow to the maximum value when opening, and waste is caused by excessive water flow. At the same time, because the flow adjustment stroke of the control handle is short, it is not suitable for controlling the water flow more accurately. That is, in daily life, although the faucet can obtain the maximum flow when the handle is opened to the maximum, in most cases, the maximum flow will not be used, even if large flow is required, it is usually a less than the maximum flow. One of the second largest traffic. However, the existing faucet cannot quickly adjust the handle to this position, and can only be adjusted slowly to obtain the flow value. In this option of the patent, the flow rates of the two maximum stops can meet the requirements of different fluids, and the fluid can be saved to the utmost, and the different maximum flow rates can be further selected according to different use requirements.

Alternatively, the first fluid inlet end, the second fluid inlet end, and the fluid outlet end of the valve device are integrated into a single device, or the first fluid inlet end, the second fluid inlet end, and the fluid outlet end are separately disposed in two Or within three single devices. In this aspect, the valve means may be a single unit in which the first fluid inlet end, the second fluid inlet end and the fluid outlet end are integrated into a single unit, or may be separate or separate split units. A typical representative of a single unit is the existing daily water taps, such as a single-handle double spool faucet. The unit device generally includes a valve core, a valve core seat and a valve core housing, and a device housing, and the valve core seat is provided with an inlet and outlet respectively communicating with the first fluid inlet end, the second fluid inlet end and the fluid outlet end of the valve core respectively And the split device, typically represented as a remote control valve, generally, the fluid outlet end and the operating mechanism are integrated, and the operating mechanism is respectively connected to the first fluid inlet end and the second fluid inlet end of the distal end, Break and flow control. The operating mechanism of the valve device, including the external operating mechanism, and the internal operating mechanism connecting the external operating mechanism and the spool, may be a control handle, a control knob, a control ring or even a control button and a touch screen.

Alternatively, the valve device comprises a sealing piece composed of a fixing piece and a moving piece, and the operating mechanism is a control handle for controlling the sliding sliding of the movable piece relative to the fixed piece, and the fixed piece is provided with a separated first fluid inlet end, a second fluid inlet end and At the fluid outlet end, the movable piece is provided with a passage for communicating the first fluid inlet end and the fluid outlet end, or the second fluid inlet end and the fluid outlet end, or the first fluid inlet when the rotor is sealingly sliding relative to the fixed piece. a second fluid inlet end and a fluid outlet end; the first fluid inlet end and the fluid outlet end are communicated through the passage on the rotor when the handle is in the first fluid region, and the second fluid inlet is in the second fluid region when the handle is in the second fluid region The end and the fluid outlet end communicate with each other through a passage on the moving piece. When the control handle is in the mixing area, the first fluid inlet end, the second fluid inlet end and the fluid outlet end communicate through the passage on the moving piece; when the control handle is adjusted in the flow regulating area, The area of the passage on the moving piece and the overlapping area of the first fluid inlet end, the second fluid inlet end and the fluid outlet end are changed; the handle is in the When the flow regulating region of a fluid region has a minimum stop, the first fluid inlet end and the fluid outlet end communicate through the passage on the rotor, and at the minimum stop of the flow regulating region of the second fluid region, the second fluid inlet end Disconnected from the fluid outlet end. In this solution, the valve device of the present patent is preferably a typical valve including a sealing piece composed of a fixing piece and a moving piece.

As a further option 3 of option 2, the first fluid inlet end has an extension with respect to the second fluid inlet end that is bent toward the fluid outlet end, the control stem being at the minimum stop of the flow regulating region of the first fluid region, first The extension portion of the fluid inlet end and the fluid outlet end communicate through the passage on the rotor, and as the adjustment value increases, the area of the overlap region of the passage on the rotor and the extension increases, as the control handle moves from the first fluid region to the second fluid. The area is adjusted and the area of the overlap area is reduced.

As a further option 4 of option 2, the first fluid inlet end is inclined toward the fluid outlet end relative to the second fluid inlet end, and the first fluid inlet end is relatively close when the control stem is at the minimum stop of the flow regulating region of the first fluid region The region of the fluid outlet end and the fluid outlet end communicate through the passage on the moving piece, and as the adjustment value increases, the area of the overlapping area of the passage on the moving piece and the area increases, and the control handle is adjusted from the first fluid area to the second fluid area. The area of the overlap area is reduced.

As a further option 5 of option 2, the distance between the first fluid inlet end and the second fluid inlet end is the same as the fluid outlet end, but the distance between the passage on the rotor and the first fluid inlet end of the control handle in the first fluid region is The first fluid inlet end and the fluid outlet are closer to the second fluid region than when the control handle is in the second fluid region, the distance between the passage on the rotor and the second fluid inlet end is smaller, and the control handle is at the minimum stop of the flow adjustment region of the first fluid region The end communicates through the passage on the moving piece, and as the adjustment value increases, the area of the overlapping area of the passage on the moving piece and the first fluid inlet end increases, and the area of the overlapping area decreases as the control handle is adjusted from the first fluid area to the second fluid area.

As a further option 6 of option 5, the distance between the channel on the rotor and the inlet end of the first fluid (the distance is less than zero, partially overlapping) of the control handle in the first fluid region by the limiting device, compared to the control handle The two-fluid area is closer to the distance between the channel on the rotor and the second fluid inlet end (the distance is greater than zero, separated from each other), the valve device comprises a casing and an external handle, and the valve body and the valve core casing and the control handle are arranged therein The external handle is connected to and operated by the control handle, and the valve core comprises a sealing piece formed by the fixing piece and the moving piece, the limiting element device is disposed on the moving piece and/or the fixed piece, or the limiting position device is disposed on the moving piece And/or the spool housing, or the limiting device is disposed on the control handle and/or the spool housing, or the limiting device is disposed on the control handle and/or the housing, or the limiting device is disposed on the external handle And / or on the outer casing.

Alternatively, the first fluid inlet end of the valve means is a hot fluid inlet end, and the flow rate of the minimum stop of the flow regulating region of the first fluid region of the operating mechanism is greater than zero less than 3 liters/minute, or greater than 3 less than 5 liters/ Points, or greater than 5 liters / minute. In this solution, wherein the flow rate is greater than zero and less than 3 liters/min, the flow rate of the minimum stop position of the operating mechanism in the flow regulating region of the first fluid region is smaller than that of most of the hot fluid supply devices (eg, water heaters, particularly gas water heaters). Turning off the minimum flow rate of the heating system, as previously described, facilitates the normal use of the hot fluid supply.

As an option 8, the valve device is a single-handle double-spool, the operating mechanism is a control handle, and the minimum stop of the control handle in the flow regulation area is the lower stop; the control handle is the single-heat of the spool mode in the first fluid region. The mode is a single cooling mode of the spool mode in the second fluid region; the valve device has an open state in which the fluid outlet end flow is greater than zero is the spool state, and the fluid outlet end flow is equal to zero is the spool state closed state; In the bottom stop position of the single cooling mode, the fluid outlet end flow is greater than zero, at which time the spool is in a single cold mode critical state or saved state, or, when the control handle is in the single thermal mode, the fluid outlet end flow Greater than zero, the spool is in a single thermal mode critical state or saved state. In this scheme, the single heat mode means that only the hot water is discharged at the fluid outlet end, and when the first fluid is hot water, it is the first fluid region; likewise, the single cold mode means that only the cold water is discharged from the fluid outlet end. When the second fluid is cold water, it is the second fluid region. The concepts of the single-heat mode and the single-cool mode are applicable to the entire patent and will not be repeated hereinafter.

As a further option of option 8, the maximum stop of the handle in the flow adjustment zone is the upper stop position, and the adjustment zone is between the upper stop position and the lower stop position; when the control handle is in the lower stop position of the single cold mode, the fluid When the outlet end flow is greater than zero, the spool is in the single cold mode critical state or saving state, and the spool is in the closed state when the control lever is in the bottom stop position of the single heat mode, from the single cold mode to the single cooling mode. The top stop position is the single cold mode large flow adjustment area, from the single cold mode stop position to the single heat mode stop position is the single cold mode small flow adjustment area; or, when the control handle is in the single thermal mode bottom stop position, The flow rate at the outlet of the fluid is greater than zero. When the valve core is in the single-heat mode critical state or the state is saved, and the control handle is in the bottom stop position of the single-cool mode, the spool is closed, from the single-heat mode to the single-heat mode. The mode top stop is the single-heat mode large flow adjustment area. The stop position from the single-heat mode to the single-cool mode is the single-heat mode small flow adjustment area.

As a further option 10 of option 9, when the handle is placed in the single cold mode stop position, between the first fluid inlet end (cold water inlet hole) and the fluid outlet end (water outlet hole) on the fixed piece, through the upper channel of the moving piece The communication, the first fluid inlet end (cold water inlet hole) communicates with the fluid outlet end (water outlet hole), so that the (water) valve core is in a single cold mode critical state; or, the control handle is placed or single heat When the mode is in the stop position, between the second fluid inlet end (hot water inlet hole) and the fluid outlet end (water outlet hole) on the fixed piece, through the communication of the upper passage of the moving piece, the second fluid inlet end (heat inlet) The water hole communicates with the fluid outlet end (outlet hole) to make the (water) spool in a single thermal mode critical state. The reverse is also true, that is, the first fluid inlet end is a hot water inlet and the second fluid inlet end is a cold water inlet.

A thermal fluid supply system comprising the aforementioned valve device, and a thermal fluid supply device having a heating system for heating the fluid therein, the hot fluid outlet of the thermal fluid supply device being in communication with the first fluid inlet end of the valve device and by the valve The operating mechanism of the device controls (including direct or indirect control) the thermal fluid supply to turn its thermal fluid supply on or off, the thermal fluid supply having a minimum flow that shuts down its heating system, and the flow at the first fluid inlet end of the valve device is lower than At the lowest flow rate, the hot fluid supply device will shut down its heating system. When the operating mechanism of the valve device is at the minimum stop of the flow regulating region of the first fluid region, the flow rate at the first fluid inlet end is greater than zero but lower than the heat. The fluid supply shuts down the minimum flow of its heating system.

In the above solution, the hot fluid, only relative to the cold fluid, does not have an absolute meaning, that is, the hot fluid is only a fluid having a higher temperature than the cold fluid. Cold fluid usually refers to a normal temperature fluid. Taking water as an example, the most common is tap water in daily life. At the same time, the cold fluid can also be a lower temperature water obtained by further cooling the normal temperature water. Hot water, in general, refers to water that is heated to a temperature that is further heated by normal temperature water. The hot fluid supply device is a device having a fluid heating function (heating its internal fluid through a heating system), such as various water heaters (gas water heaters, electric water heaters, etc.).

A fluid supply system comprising at least one of the aforementioned valve means, and a fluid supply means, the fluid outlets of the fluid supply means are respectively in communication with the first fluid inlet end of each valve means, and the first fluid inlet end is controlled in accordance with the operating mechanism of the valve means Flow control (including direct or indirect control) fluid supply to the fluid supply.

Alternatively, the fluid supply device has an identification device that identifies a flow signal of each valve device at a minimum stop of the flow adjustment region of its operating mechanism in the first fluid region, and controls for controlling its internal operation based on the recognition result of the identification device Device.

Alternatively, the fluid supply device is a thermal fluid supply device having a heating system for heating the fluid therein, the hot fluid outlet of the thermal fluid supply device being in communication with the first fluid inlet end of each valve device, and operated by the valve device The mechanism controls the flow of hot fluid to the first fluid inlet end flow control (including direct or indirect control) of the thermal fluid supply.

The valve device of the present patent is combined with an existing fluid supply device into a fluid supply system. Since the valve device of the present patent has the specific flow information described above, when the specific flow information is utilized by the fluid supply device, the existing fluid supply device is formed. The potential of a smart fluid supply system that outputs different fluids for different valve devices. For example, after the identification device of the fluid supply device recognizes the signal, the fluid corresponding to the valve can be controlled by the control device, whereby different valve devices can obtain the fluid most suitable for its use. For example, if the fluid supply device is a hot fluid supply device (for example, a water heater), different specific flow information may be assigned to different fluid temperatures according to different use occasions/requirements, and thus, each valve device may be suitable for use thereof. / Demand fluid temperature. Taking the water temperature control device (for example, a water heater) as an example, when the user washes the hand in the bathroom, the operating mechanism is placed in the minimum stop position of the flow regulating area of the first fluid region, and the water heater can continuously detect (sensing) The specific signal corresponding to the continuous flow rate A of the valve of the restroom (such as the flow value or the dynamic pressure/static pressure ratio or the dynamic pressure/total pressure ratio or the dynamic pressure/static pressure ratio, etc.) is recognized as the valve of the restroom. The hand washing operation directly adjusts the outlet water temperature to a pre-made temperature A suitable for hand washing; and when the user washes the dishes in the kitchen, the operating mechanism is also placed in the minimum stop position of the flow regulating area of the first fluid region, and the water heater can continuously detect ( Inductive) to a specific signal corresponding to the continuous specific flow D of the valve of the kitchen, the valve identified as the kitchen is performing a dishwashing operation, directly adjusting the temperature of the outlet water to a prefabricated temperature D suitable for dishwashing; likewise, the bathroom The same is true for bathing.

The utility model relates to a single-handle double water-saving valve core. The spool mode has a single cooling mode and a single heat mode, and the control handle is placed in an adjustment area and a lower stop position, the spool state has an open state and a closed state, and the control handle is placed in a single cold state. When the mode is in the stop position, the water-saving spool is in the single-cool mode saving state; or, when the control handle is placed in the single-heat mode, the water-saving spool is in the single-heat mode saving state.

As an option 1', when the control handle is placed in the single cold mode, the cold water inlet and the water outlet are communicated between the cold water inlet hole and the water outlet hole on the fixed piece through the passage of the upper passage of the moving piece. The water-saving valve core is in a single-cooling mode to save the state; or, when the control handle is placed in the single-heat mode, the hot water inlet hole and the water outlet hole on the fixed piece pass through the communication of the upper channel of the moving piece, the heat The water inlet hole communicates with the water outlet hole, so that the water saving valve core is in a single heat mode saving state.

Furthermore, a single-handle double-water-saving spool has a single-cold mode and a single-heat mode in the spool mode, and the control handle is placed in the upper stop position, the adjustment area and the lower stop position, and the spool state has an open state and a closed state. State, when the control handle is placed in the single cold mode, the water saving spool is in the single cooling mode critical state, and the water saving spool is closed when the control handle is placed in the single thermal mode, from the single cooling mode to the single position. The cold mode upper stop position is the water-saving spool single-cooling mode large flow adjustment area, from the single cooling mode to the single-heat mode, the stop position is the water-saving spool single-cooling mode small flow adjustment area; or, the handle is placed When the thermal mode is in the stop position, the water-saving spool is in the single-heat mode critical state, and the water-saving spool is closed when the control handle is placed in the single-cool mode, and the water stop is from the single-heat mode to the single-heat mode. The spool single-heat mode large flow adjustment area, from the single-heat mode stop position to the single-cool mode stop position is the water-saving spool single-heat mode small flow adjustment area.

As an option, when the control handle is placed in the single cold mode, the cold water inlet and the water outlet are communicated between the cold water inlet hole and the water outlet hole on the fixed piece through the passage of the upper passage of the moving piece. The water-saving spool is in a single-cooling mode critical state; or, when the control handle is placed in the single-heat mode, the heat is passed between the hot water inlet hole and the water outlet hole on the fixed piece, and the heat is transmitted through the upper passage of the moving piece. The water inlet hole communicates with the water outlet hole, so that the water saving valve core is in a single heat mode critical state.

As mentioned above, as a specific single-handle double-saving water-saving valve core of the foregoing valve device, the concepts thereof are as described above, and it is reiterated again: in the patent, the handle-position position means that the control handle regulates the flow rate. The operative physical position, for the faucet of the lift-on type (typically a single-handle double valve), the lift-type handle is opened by vertical lifting, and the angle of the lift is used to control the flow of water. The angle is When the time is zero, the faucet is closed, and the handle position is the lower stop position, which is the minimum adjustment position (lower stop position/minimum stop position); when the lift angle is maximum (the flow rate is usually the largest at this time), the handle position is the last stop. Bit is the maximum adjustment position (top stop/maximum stop position), and the adjustment area is between the top stop and the bottom stop. Similarly, the wrench handle is opened by the level rotation, and the flow angle is controlled by the angle of the opening. The larger the opening angle is, the larger the flow rate is. The point at which the angle is 0° (usually the closed position) is the minimum adjustment position (bottom stop position) The bit/minimum stop position), and the other point with the largest angle (usually the maximum flow position) is the maximum adjustment position (top stop/maximum stop position). The single heat mode means that only the hot water is discharged from the outlet end of the spool (outlet hole). Similarly, the single cold mode means that only the cold water is discharged from the outlet end of the spool. The flow rate at the outlet end of the spool is greater than zero, which is the open state of the spool state, and the flow at the outlet end of the spool is equal to zero, which is the closed state of the spool state; when the control handle is in the lower stop position of the single cooling mode, the flow at the outlet end of the spool is greater than zero. At this time, the spool is in the single cold mode critical state or saved state, or when the control handle is in the bottom stop position of the single heat mode, the flow rate of the spool outlet is greater than zero, and the spool is in the single thermal mode critical state or saved state. . In the foregoing single-handle double-connected water-saving spool, the spool mode may further include a hot-hot mixing mode. In the hot and cold mixing mode, the water outlet of the valve core is mixed with cold water and hot water. For the single-handle double valve core, the cold water inlet hole and the hot water inlet hole on the fixed piece are simultaneously connected to the water outlet hole through the passage on the moving piece, It also has a top stop and a bottom stop. Generally, the top stop flow is the largest and the bottom stop is the closed state. As a further option A of the two kinds of single-handle double water-saving valve cores, the hot water inlet hole has an extension portion bent toward the water outlet hole with respect to the cold water inlet hole, and the heat-intake water is when the control handle is stopped in the single heat mode. The extension portion of the hole communicates with the water outlet hole through the passage on the moving piece, and the area of the overlapping area of the passage on the upper moving piece and the extending portion increases with the lower stop position, and overlaps with the control handle from the single heat mode to the single cooling mode. The area of the area is reduced; or, the cold water inlet hole has an extension portion bent toward the water outlet hole relative to the hot water inlet hole, and the extension portion and the water outlet hole of the cold water inlet hole pass when the control handle is stopped in the single cooling mode. The channels on the sheet are connected, and the area of the overlapping area of the channel on the upper moving piece and the extending portion increases with the lower stop position, and the area of the overlapping area decreases as the control handle is adjusted from the single cooling mode to the single heating mode.

As a further option B of the two kinds of single-handle double water-saving valve cores, the hot water inlet hole is inclined toward the water outlet hole with respect to the cold water inlet hole, and the heat inlet hole is relatively close to the water outlet when the control handle is stopped in the single heat mode. The area of the hole and the water outlet hole communicate with each other through the passage on the moving piece, and the area of the overlapping area of the channel on the upper moving piece and the area increases with the lower stop position, and the area of the overlapping area is reduced as the control handle is adjusted from the single heating mode to the single cooling mode. Or, the cold water inlet hole is inclined toward the water outlet hole relative to the hot water inlet hole, and when the control handle is stopped in the single cooling mode, the area of the cold water inlet hole relatively close to the water outlet hole and the water outlet hole communicate with each other through the passage on the moving piece. Moreover, the area of the overlapping area of the channel on the upper moving piece and the area increases with the lower stop position, and the area of the overlapping area decreases as the control handle is adjusted from the single cooling mode to the single heating mode.

As a further option C of the two kinds of single-handle double water-saving valve cores, the hot water inlet hole and the cold water inlet hole have the same distance from the water outlet hole, but the control handle is in the single heat mode between the passage on the moving piece and the hot water inlet hole. The distance between the channel on the moving piece and the cold water inlet hole is closer than that of the control handle in the single cooling mode. When the control handle is stopped in the single heat mode, the hot water inlet hole and the water outlet hole communicate through the passage on the moving piece. And the area of the overlapping area of the channel on the upper moving piece and the hot water inlet hole increases with the lower stop position, and the area of the overlapping area decreases as the control handle is adjusted from the single heat mode to the single cooling mode; or, the hot water inlet hole and the cold inlet The distance between the water hole and the water outlet hole is the same, but the distance between the channel on the moving piece and the cold water inlet hole in the single cooling mode of the control handle is compared with the distance between the channel on the moving piece and the hot water inlet hole in the single heat mode. More recently, when the control lever is stopped in the single cooling mode, the cold water inlet hole and the water outlet hole communicate through the passage on the moving piece, and the area of the overlapping area of the passage on the upper moving piece and the cold water inlet hole increases with the lower stop position. Adjust from single cooling mode to single heating mode with the control handle The area of the overlapping area is reduced.

As a further option D of the selection C, the distance between the channel on the moving piece and the hot water inlet hole of the control handle in the single heat mode is controlled by the limiting element device, and the channel and the cold moving on the moving piece of the control handle in the single cooling mode. The distance between the water holes is closer; or, by the limiting device, the distance between the channel on the moving piece and the cold water inlet hole of the control handle in the single cooling mode is compared with the channel on the moving piece of the control handle in the single heat mode. The distance between the hot water inlet holes is closer; the valve device comprises a casing and an outer handle, the valve body is provided with a valve core and a valve core casing and a control handle, and the external handle is connected with the control handle and is operated, and the valve core comprises a fixing piece And a sealing piece formed by the movable piece, the limiting element device is disposed on the moving piece and/or the fixed piece, or the limiting unit is disposed on the moving piece and/or the valve core casing, or the limiting unit is disposed on the control handle and / or the valve core housing, or the limiting device is disposed on the control handle and / or the housing, or the limiting device is disposed on the external handle and / or the housing.

As a further option E of the foregoing two single-handle double-water-saving spools, when the water-saving spool is in the single-heat mode saving state or the critical state, the flow rate of the hot water inlet hole is greater than zero or less than 3 liters/min.

A thermal fluid supply system comprising a valve device and a thermal fluid supply device having a heating system for heating the fluid therein, the hot fluid outlet of the thermal fluid supply device being in communication with the fluid inlet end of the valve device, and the operating mechanism of the valve device Controlling the thermal fluid supply to turn its hot fluid supply on or off, the thermal fluid supply having a minimum flow to shut off its heating system, the flow of the fluid inlet of the valve device being lower than the minimum flow, the thermal fluid supply will turn off its heating System, the valve device is the aforementioned single-handle double-connected water-saving valve core, the hot fluid outlet of the hot fluid supply device is connected with the hot water inlet hole of the single-handle double water-saving valve core, and the control handle of the single-handle double water-saving valve core is When the single thermal mode saves state or critical state, the flow rate of its hot water inlet hole is greater than zero, but lower than the minimum flow rate at which the hot fluid supply device turns off its heating system.

A fluid supply system comprising at least one valve device, and a fluid supply device, wherein fluid outlets of the fluid supply device are respectively in communication with fluid inlet ends of the respective valve devices, and control fluid inlet end flow control fluid supply devices according to an operating mechanism of the valve device The fluid supply condition is characterized in that: the valve device is the aforementioned single-handle double-joint water-saving valve core, and the fluid outlets of the fluid supply device respectively have heats of the single-handle double-saving water-saving valve cores having a single-heat mode saving state or a critical state. The inlet holes are connected or communicated with the cold inlet holes of the single-handle double-water-saving spools having a single-cool mode saving state or a critical state.

As an option A', the fluid supply device has identification means for identifying the flow signals of the single-handle double-water-saving spools in their single-heat mode or single-cooling mode, and controlling them according to the recognition result of the identification means Internally operated control unit.

As an option B', the fluid supply device is a thermal fluid supply device having a heating system for heating the internal fluid thereof, the hot fluid outlet of the thermal fluid supply device being in communication with the hot water inlet of each of the single-handle double water-saving spools, and The hot water supply of the hot fluid supply device is controlled by the control handle of the single-handle double-water-saving spool.

As far as the ordinary spool is concerned, in order to facilitate the control, the control handle is usually placed in the lower stop position to set the spool to the closed state, and the lower stop to the upper stop is the spool flow adjustment area; for the single handle double common spool, the valve When the core is in the closed state, its handle is placed in the single-cool mode stop position and the single-heat mode stop position. The single-handle double-saving water-saving valve core of the invention sets the control handle into the single-cool mode (or single-heat mode), and the stop position is set to the critical state of the water-saving spool single-cooling mode (or single-heat mode) (or the saving state) / spool saves the state), the control handle is placed into the single thermal mode (or single cold mode), the lower stop is set to the spool closed state, that is, as described above, the operating mechanism is at the minimum of the flow adjustment region of the second fluid region The bit flow is equal to zero. Therefore, the water-saving spool of the present invention increases the critical state/saving state that is easy to handle. The water-saving spool in the critical state/saving state can be set according to factors such as the type of water-saving spool, the way of use, and the water-saving requirements. The easy-to-operate operation refers to the operation difficulty of the water-saving valve core placing the control handle into the lower stop position (making the water-saving valve core in a certain open state), which is significantly lower than the ordinary valve core placing the control handle into a specific position in the adjustment area. The difficulty of operating (making the normal spool in a specific open state). The critical state/saving state means that the water-saving spool is in a specific open state (corresponding to a specific open state in which the spool is placed when the control spool is placed in a certain position in the flow regulating region), that is, the foregoing The flow rate of the minimum stop of the flow regulating region of the first fluid region is greater than a specific flow state of zero. Thus, the flow regulating area in the single cooling mode (or single heating mode) of the water saving spool of the present invention is divided into a large flow regulating area and a small flow regulating area, that is, from a single cooling mode (or single heating mode) to a single cooling. The mode (or single thermal mode) top stop is the water-saving spool single-cooling mode (or single-heat mode) large flow (greater than critical state flow) adjustment zone, as described above, the flow regulation zone; from the single-cool mode (or single Hot mode) The bottom stop to single heat mode (or single cold mode) bottom stop is the water saving spool single cooling mode (or single heat mode) small flow (less than critical state flow) adjustment area, which is as described above, the degree of mixing Adjusting the first or second fluid region in the region. At the same time, the adjustment stroke of the control shank of the water-saving valve core of the present invention in the single-cooling mode (or single-heat mode) is expanded, that is, the adjustment stroke of the ordinary valve core one-stage (lower stop-upper stop position) is extended to The water-saving spool has two stages (lower stop - upper stop + lower stop - lower stop) to adjust the stroke.

For the currently used valve core structure, for example, a sealing piece (fixing piece, moving piece) structure, the water saving valve core of the present invention is: when the control handle is placed in a single cold mode (or single heat mode), the fixing piece is on the fixed piece. The cold water inlet hole (or the hot water inlet hole) and the water outlet hole communicate with each other through the passage of the moving piece, and the cold water inlet hole (or the hot water inlet hole) communicates with the water outlet hole, so that the water saving valve core is in a single Cold mode (or single thermal mode) critical state (or save state / spool save state).

The single-handle double-saving water-saving valve core made of the above structure, for example, the ceramic sealing piece single-handle double-saving water-saving valve core, the main components thereof are a control handle, a ceramic fixing piece and a ceramic moving piece. Wherein, the ceramic fixing piece is provided with a hot water inlet hole, a cold water inlet hole and a water outlet hole, and the ceramic moving piece is provided with a passage. The following are listed (with single cold mode critical state / saving state) several typical states of the water-saving spool: when the control handle is placed in the single cooling mode adjustment area, the channel on the ceramic rotor will be the cold water inlet and the water outlet on the ceramic stator Connected, the water-saving spool is in the single-cool mode open state, and its flow rate is adjustable; the single-cool mode adjustment area is divided into a single-cool mode large flow adjustment area, a single-cool mode critical state, and a single-cool mode small flow adjustment area: (1) The control handle is placed in the single-cooling mode large flow adjustment area, and the passage on the ceramic moving piece connects the cold water inlet hole on the ceramic fixed piece with the water outlet hole, and the water-saving valve core is in a single-cooling mode, the large flow rate is opened, and the flow rate is greater than the critical state flow rate and (2) When the control handle is placed in the single cold mode, the channel on the ceramic moving piece connects the cold water inlet hole on the ceramic fixed piece with the water outlet hole, and the water saving valve core is in the critical state of single cooling mode, and the flow rate is The specific flow value of the critical state flow; (3) when the control handle is placed in the single-cool mode small flow adjustment area, the passage on the ceramic rotor will be the cold water on the ceramic fixed piece The hole is connected with the water outlet hole, the water-saving valve core is in a single-cooling mode, and the flow rate is less than the critical state flow rate and is adjustable; (4) when the control handle is placed in the single-heat mode adjustment area, the channel on the ceramic moving piece fixes the ceramic The hot water inlet hole on the sheet is connected with the water outlet hole, the water saving valve core is in the single heat mode, and the flow rate is adjustable; (5) when the control handle is placed in the single heat mode, the water outlet hole on the ceramic fixing piece is not cold. The water inlet hole and the hot water inlet hole are connected, and the water saving valve core is closed.

The foregoing main scheme of the present invention and its various further alternatives can be freely combined to form a plurality of schemes, all of which can be adopted and claimed in the present invention: as in the present invention, each non-conflicting selection (for example, selecting 3, 4, 5, and A) , B, C are conflicting choices, can not be combined with each other, but can only be combined with other main schemes or selections), or arbitrarily combined with the main scheme, etc., after those skilled in the art understand the scheme of the present invention It is obvious from the prior art and common general knowledge that there are various combinations, which are all technical solutions to be protected by the present invention, and are not exhaustive.

The invention has the beneficial effects that the valve device is beneficial for saving the fluid passing through the valve device; at the same time, the valve device can provide feedback information for the fluid supply device, in particular the hot fluid supply device, and facilitates the control of the fluid supply device through the valve. In particular, control of the hot fluid supply temperature of the thermal fluid supply device; and when used in conjunction with the thermal fluid supply device, can facilitate normal use of the thermal fluid supply device. in particular:

(1) Set the critical state of the spool to separate large flow and small flow. By setting the critical state and dividing the water-saving spool flow regulating area into a large flow regulating area (greater than the critical state flow) and a small flow regulating area (less than the critical state flow), it is convenient for the water user to select an appropriate flow regulating area or critical state, which is beneficial to the user. conserve water.

(2) Convenient operation method, the operation of the water-saving valve core to put the control handle into the critical state (saving state), similar to the operation of the ordinary valve core to put the control handle into the closed state, the operation method is simple and quick. Increase the handle to adjust the stroke to help regulate the flow. The one-stage adjustment stroke of the ordinary spool control handle is extended to the two-stage adjustment stroke of the water-saving spool, and the flow adjustment of the control handle is more accurate and convenient due to the adjustment stroke expansion.

(3) Take into account the operation method of the ordinary spool, and retain the advantages of the ordinary spool. The water-saving spool adopts a similar opening and closing operation method as the ordinary spool, and retains the advantages of the ordinary spool, for example, the hot and cold water adjustment is convenient and flexible, the control handle is smooth and light, and the valve core has a long service life. Compared with the present invention: there is a valve core which is provided with a segmented gear position by using an elastic element. When the multi-position valve spool is operated, it is necessary to press the gear element elastic force to perform the conversion between the gear positions, The smooth and light operation of the handle is lost, and the life of the spool is shortened.

(4) Water saving and energy saving. The use of a water-saving spool (with a single thermal mode critical state) not only saves water, but also reduces hot water opening frequency and saves energy. The reason is as follows: due to the critical state of the above-mentioned water-saving spool in the single-heat mode, the pilot water user puts the control handle into the stop position of other modes when the water-saving spool is closed (for example, the stop position in the single-cool mode), When cold water is used, it is possible to avoid placing the control handle in the single-heat mode adjustment area, thereby reducing the frequency of opening hot water and reducing energy waste.

(5) Conducive to the normal use of water heaters. For the hot and cold water system with the gas water heater as the heat source, the water-saving spool with the single-heat mode critical state is adopted, and the flow value of the single-heat mode critical state of the water-saving valve core is set to be smaller than the minimum closed flow value of the gas water heater, not only Saving hot water is also particularly beneficial for the normal use of gas water heaters. The operation mode is as follows: (a) If hot water is not required during the use of hot water, the control handle can be placed in a small flow adjustment area (or critical state). On the one hand, since the small flow regulating area is smaller than the critical state flow, that is, less than the minimum closing flow rate of the gas water heater, the gas water heater does not consume gas when it is turned off; on the other hand, since the water saving valve core is in the small flow regulating area (or critical state), Hot and cold water systems (hot water pipes and internal storage of gas water heaters) still have small flow of hot water flowing out to meet short-term hot water demand. (b) When the hot water is turned off, the control handle is placed in the (single heat mode or hot and cold mixed mode) large flow adjustment area in advance (single heat mode), small flow adjustment area or critical state, and the large flow of hot water is switched to small flow. Hot water, and finally the handle is placed in the closed state by the small flow adjustment area (or critical state). The above operation can not only save hot water and gas, but also effectively prevent scaling of the inner wall of the gas water heater. (The water heater is turned off in the state of saving the spool, the internal hot water continues to flow out for use, and the cold water enters the water heater and lowers the temperature of the water heater) Conducive to maintaining the normal heat transfer efficiency of the water heater and extending the service life.

The following non-limiting examples are illustrative of the invention.

Example 1:

A valve device comprising a valve device that controls a fluid passage state when a fluid passes, and an operating mechanism that achieves the aforementioned control by operating in an operating region thereof, the valve device having a first fluid inlet end, a second fluid inlet end, and a fluid outlet The operating area of the operating mechanism is divided into a mixing degree adjusting area for adjusting the degree of mixing of the first fluid and the second fluid, and a flow regulating area for adjusting the flow rate of the fluid outlet end thereof in the mixing degree adjusting area, and the mixing degree adjusting area includes a necessary The fluid outlet end only exits the first fluid region of the first fluid, and the fluid outlet end only exits the second fluid region of the second fluid, and the optional fluid outlet end exits the mixed region of the first fluid and the second fluid mixed fluid, The flow rate of the minimum stop of the operating mechanism in the flow regulating region of the first fluid region is greater than zero, and the flow of the minimum stop in the flow regulating region of the second fluid region is equal to zero. The first fluid inlet end, the second fluid inlet end, and the fluid outlet end of the valve device are integrated into a single device.

Optionally, the valve device comprises a sealing piece composed of a fixing piece and a moving piece, and the operating mechanism is a control handle for controlling the sliding sliding of the movable piece relative to the fixed piece. The fixed piece is provided with a separated first fluid inlet end, a second fluid inlet end and a fluid. At the outlet end, the movable piece is provided with a passage for communicating the first fluid inlet end and the fluid outlet end, or the second fluid inlet end and the fluid outlet end, or the first fluid inlet end when the rotor is sealingly sliding relative to the fixed piece. a second fluid inlet end and a fluid outlet end; the first fluid inlet end and the fluid outlet end are communicated through the passage on the rotor when the handle is in the first fluid region, and the second fluid inlet end is in the second fluid region when the handle is in the second fluid region And the fluid outlet end communicates with the passage on the moving piece. When the control handle is in the mixing area, the first fluid inlet end, the second fluid inlet end and the fluid outlet end communicate through the passage on the moving piece; when the control handle is adjusted in the flow regulating area, the movement is controlled The area of the overlap between the channel on the sheet and the first fluid inlet end, the second fluid inlet end and the fluid outlet end changes; the handle is in the When the flow control region of the fluid region has a minimum stop position, the first fluid inlet end and the fluid outlet end communicate through the passage on the rotor, and at the minimum stop of the flow regulation region of the second fluid region, the second fluid inlet end and The fluid outlet end is disconnected.

Further, the valve device is a single-handle double-spool valve, the operating mechanism is a control handle, and the minimum stop position of the control handle in the flow regulation area is a lower stop; the control handle is a single-heat of the spool mode in the first fluid region. The mode is a single cooling mode of the spool mode in the second fluid region; the valve device has an open state in which the fluid outlet end flow is greater than zero is the spool state, and the fluid outlet end flow is equal to zero is the spool state closed state; In the bottom stop position of the single cooling mode, the fluid outlet end flow is greater than zero, at which time the spool is in a single cold mode critical state or saved state, or, when the control handle is in the single thermal mode, the fluid outlet end flow Greater than zero, the spool is in a single thermal mode critical state or saved state. The maximum stop position of the handle in the flow adjustment area is the upper stop position, and the adjustment area is between the upper stop position and the lower stop position; when the control handle is in the lower stop position of the single cold mode, the flow rate at the fluid outlet end is greater than zero. The spool is in the single-cool mode critical state or saved state, and the spool is in the closed state when the control lever is in the bottom stop position of the single-heat mode, and the single-cold mode is the single stop mode from the single-cool mode to the single-cool mode. In the flow adjustment area, the single-cold mode low-flow adjustment area is from the single-cool mode stop position to the single-heat mode stop position; or the fluid outlet end flow rate is greater than zero when the control handle is in the single-heat mode lower stop position. When the spool is in the single thermal mode critical state or saving state, and the control lever is in the bottom stop position of the single cooling mode, the spool is closed, from the single thermal mode stop to the single thermal mode, the upper stop is the single thermal mode. In the large flow adjustment area, the stop position from the single thermal mode to the single cold mode is the single heat mode small flow adjustment area.

Preferably, a single-handle double-water-saving spool is exemplified, with cold water as the first fluid and hot water as the second fluid. The spool mode has a single thermal mode and a single cooling mode. The handle is placed in the upper position (ie, the maximum stop of the flow adjustment area), the adjustment area (ie, between the maximum and minimum stops of the flow adjustment area), and the lower Stop position (ie, the minimum stop position of the flow adjustment area), the spool state has an open state (ie, the fluid outlet end flow is greater than zero) and a closed state (ie, the fluid outlet end flow rate is equal to zero), and the control handle is placed in the single cold mode. The water-saving spool is in the single-cool mode critical state (or saved state), and the water-saving spool is closed when the control handle is placed in the single-heat mode, and the stop is from the single-cool mode to the single-cool mode. The position is the water-saving spool single-cooling mode and large flow adjustment area. The stop position from single cooling mode to the single-heat mode is the water-saving spool single-cooling mode small flow adjustment area.

In the present embodiment, the critical state means that the water-saving spool is in a specific open state (corresponding to a specific open state in which the spool is located when the normal spool is placed in a specific position of the flow regulating region). Thus, the adjustment area of the water-saving spool in the single cooling mode of the present invention is divided into a large flow adjustment area and a small flow adjustment area, that is, from the single cold mode to the single cold mode, the upper stop is the water saving spool single cold mode large flow. (greater than the critical state flow) adjustment area, from the single cold mode stop position to the single heat mode stop position is the water saving spool single cooling mode small flow (less than the critical state flow) adjustment area. At the same time, the adjustment stroke of the control handle of the water-saving valve core of the invention in the single-cooling mode is expanded, that is, the adjustment stroke is extended from the ordinary valve core (stop position in the single cooling mode to the upper cooling mode) to the water saving valve. Core (single stop in single cold mode to stop in single cold mode, stop in single cold mode to stop in single thermal mode).

In this embodiment, the flow rate value of the water-saving spool in a critical state can be set according to factors such as the type of the water-saving spool, the mode of use, and the water-saving requirement. For example, for a kitchen faucet of size DN15, the maximum flow rate of the single-handle double-water-saving spool is 20 liters/min, and the critical flow value is set to 5 liters/min. Then, the water-saving spool of the embodiment has a single-cold mode high-flow (>5 liter/min) adjustment region from the single-cool mode stop position to the single-cool mode stop position, from the single-cool mode to the single-heat mode. The stop position is a single cold mode small flow (<5 l/min) adjustment zone.

In this embodiment, the stop position in the single cooling mode is set to a critical state, which is advantageous for saving cold water. When using cold water, firstly put the control handle into the small flow adjustment area, large flow adjustment area or critical state according to the amount of water consumption, and then fine-tune the control handle according to the immediate water condition (the adjustment stroke is extended to facilitate the control handle to finely adjust the water volume), which satisfies the water consumption. Demand also saves water.

Example 2:

This embodiment is similar to Embodiment 1, except that in this embodiment, the critical state is set in the single thermal mode, and in the single cooling mode, the stop is the spool closed state.

The valve device of this embodiment, and a thermal fluid supply device (such as various water heaters) having a heating system for heating the fluid therein, constitute a hot fluid supply system, a hot fluid outlet of the thermal fluid supply device and a first fluid of the valve device The inlet end (the hot fluid inlet end, such as the hot water inlet) communicates and is controlled by the operating mechanism of the valve device (including direct control or indirect control) to open or close its hot fluid supply, the thermal fluid supply having a Closing the minimum flow rate of the heating system, the flow rate of the first fluid inlet end (the hot fluid inlet end, such as the hot water inlet port) of the valve device is lower than the minimum flow rate, the hot fluid supply device will close its heating system, the valve device The operating mechanism has a flow rate at the first fluid inlet end that is greater than zero, but less than a minimum flow rate at which the thermal fluid supply device turns off its heating system, at a minimum stop of the flow regulating region of the first fluid region (stop in single thermal mode). . Preferably, the flow rate of the operating mechanism in the minimum stop position (stop position in the single heat mode) of the flow rate adjustment region of the first fluid region (the hot fluid region) is greater than zero and equal to 3 liters/min.

In this embodiment, the single-heat mode critical state flow value is set to 3 liters/min, which is smaller than the common domestic gas water heater minimum closing flow value, which not only saves hot water but also is particularly beneficial for the normal use of the gas water heater. The operation mode is as follows: (a) In the process of using hot water, if a large flow of hot water is not required, the control handle can be placed in a single heat mode small flow adjustment area or a critical state. On the one hand, since the flow value of the small flow regulating area or the critical state is smaller than the minimum closing flow rate of the gas water heater, the gas water heater is turned off without consuming gas; on the other hand, since the water saving valve core is in the single heat mode small flow regulating area or critical state The hot and cold water system (hot water pipeline and gas water heater internal storage) still has a small flow of hot water outflow to meet the short-term hot water demand. (b) When hot water is turned off, the handle is placed in advance (single heat mode or hot and cold mixed mode) with large flow of hot water (single heat mode), small flow of hot water or critical state, and finally the handle is made of small flow of hot water. Or the critical state is placed in the off state. The above operation can not only save hot water and gas, but also effectively prevent scaling of the inner wall of the gas water heater (the internal hot water continues to flow out after the water heater is turned off, and the cold water enters the water heater and lowers the temperature of the inner wall of the water heater), which is particularly beneficial for maintaining the water heater. Normal heat transfer efficiency and long life.

Example 3:

As shown in FIG. 1 to FIG. 6 , the embodiment is basically the same as the first embodiment, and more specifically, is a single-handle double-saving water-saving valve core of a ceramic piece, and the valve core mode has a single heat mode and a single cooling mode, and the control handle is placed. The position has a top stop position, an adjustment area and a bottom stop position, and the spool state has an open state and a closed state. When the control handle is placed in the single thermal mode, the water saving spool is in a single thermal mode critical state, and the control handle is placed. The water-saving spool is closed when the single-cold mode is in the stop position. The stop position from the single-heat mode to the single-heat mode is the water-saving spool single-heat mode large flow adjustment area, from the single-heat mode to the single-cooling The stop position of the mode is the water-saving spool single-heat mode small flow adjustment area.

In the valve device of this embodiment, the first fluid inlet end (hot water inlet hole) has an extension portion bent toward the fluid outlet end (water outlet hole) with respect to the second fluid inlet end (cold water inlet hole), and the control handle is at the When the flow control region of a fluid region has a minimum stop position (single stop in the single thermal mode), the extension portion and the fluid outlet end of the first fluid inlet end communicate with the passage on the moving piece, and the passage on the moving piece becomes larger with the adjustment value. The area of the overlap region with the extension increases, and the area of the overlap region decreases as the lever is adjusted from the first fluid region to the second fluid region.

1 is a schematic cross-sectional view of the fixing piece 1, in which the upper left side is a cold water inlet hole 11, the upper right side is a hot water inlet hole 12, and the lower part is a water outlet hole 13. 2 is a schematic cross-sectional view of the rotor 2, and in the middle of the figure is a channel 21. Compared with the single-handle double common valve core of the ceramic piece, only the shape of the hot water inlet hole 12 on the fixed piece 1 is changed (the hot water inlet hole and the cold water inlet hole on the common valve core fixing piece are bilaterally symmetrical), and the rest The structure is the same.

Since the shape of the hot water inlet hole 12 on the fixing piece 1 of the present embodiment extends downward (in the drawing), when the control handle of the embodiment is placed in the single thermal mode, the hot water inlet hole 12 on the fixing piece 1 is provided. Between the water outlet hole 13 and the passage 21 of the movable piece 2, the hot water inlet hole 12 and the water outlet hole 13 communicate with each other, so that the embodiment is in a single heat mode critical state, see FIG.

Compared with the single-handle double common valve core of the ceramic piece, the state of the stop valve core in the single cooling mode does not change in this embodiment, and the water-saving valve core is in the closed state, see FIG.

In this embodiment, the stop position from the single thermal mode to the single thermal mode is the water-saving spool single-heat mode large flow adjustment area, see FIG. 5; from the single-heat mode stop position to the single-cool mode stop position For the water-saving spool single heat mode small flow adjustment area, see Figure 6. The arrows in the figure show the direction of movement of the rotor 2 during flow adjustment.

Example 4:

As shown in FIG. 7 to FIG. 12, this embodiment is similar to the embodiment 3 except that the first fluid inlet end (hot water inlet hole) of the valve device is oriented toward the second fluid inlet end (cold water inlet hole). The fluid outlet end (water outlet hole) is inclined close to the smallest stop of the flow regulating region of the first fluid region (stop in the single heat mode), the region of the first fluid inlet end relatively close to the fluid outlet end and the fluid outlet end Through the passage on the moving piece, the area of the overlapping area of the channel on the moving piece and the area increases as the adjustment value increases, and the area of the overlapping area decreases as the control handle is adjusted from the first fluid area to the second fluid area.

Specifically, first, the hot water inlet hole 12 and the water outlet hole 13 on the fixed piece 1 are changed; and second, the channel 21 on the movable piece 2 is changed. Fig. 7 is a schematic cross-sectional view of the fixing piece 1, in which the upper left side is a cold water inlet hole 11, the upper right side is a hot water inlet hole 12, and the lower part is a water outlet hole 13. Compared with the single-handle double common valve core of the ceramic piece, the position of the hot water inlet hole 12 on the fixed piece 1 is changed (the hot water inlet hole and the cold water inlet hole on the common valve core fixing piece are bilaterally symmetric), and the water outlet hole 13 (in the figure) the shape of the upper right is reduced. Fig. 8 is a schematic cross-sectional view of the movable piece 2, compared with the single-handle double common valve core of the ceramic piece, the shape of the upper part of the channel 21 (in the figure) on the movable piece 2 is reduced, and the rest of the structure is the same.

In the present embodiment, since the position of the hot water inlet hole 12 on the fixing piece 1 is inclined downward (in the drawing), when the control handle of the embodiment is placed in the single thermal mode, the heat is advanced on the fixing piece 1. Between the water hole 12 and the water outlet hole 13, through the communication of the passage 21 on the movable piece 2, the hot water inlet hole 12 and the water outlet hole 13 communicate with each other, so that the present embodiment is in a single heat mode critical state, see FIG.

Compared with the single-handle double common valve core of the ceramic piece, the state of the stop valve core in the single cooling mode does not change in this embodiment, and the water-saving valve core is in the closed state, see FIG.

In this embodiment, the stop position from the single thermal mode to the single thermal mode is the water-saving spool single-heat mode large flow adjustment area, see FIG. 11; from the single-heat mode stop position to the single-cool mode stop position For the water-saving spool single heat mode small flow adjustment area, see Figure 12. The arrows in the figure show the direction of movement of the rotor 2 during flow adjustment.

Example 5:

As shown in FIG. 13 to FIG. 18, the embodiment is basically the same as the first embodiment, and more specifically, is a single-handle double-joint water-saving valve core of a ceramic piece, and the valve core mode has a single heat mode, a single cooling mode, and a hot and cold mixing mode. The handle is placed in the upper stop position, the adjustment area and the lower stop position. The spool state has an open state and a closed state. When the control handle is placed in the single thermal mode, the water saving spool is in the single thermal mode critical state, The water-saving spool is closed when the handle is placed in the single-cool mode, and the stop position from the single-heat mode to the single-heat mode is the water-saving spool single-heat mode large flow adjustment area, and the single-heat mode is terminated. The stop position in the single-cool mode is the water-saving spool single-heat mode small flow adjustment area.

The first fluid inlet end (hot water inlet hole) and the second fluid inlet end (cold water inlet hole) of the valve device are at the same distance from the fluid outlet end (water outlet hole), but the passage of the control handle on the movable piece in the first fluid region The distance from the inlet end of the first fluid is closer than the distance between the passage on the rotor and the second fluid inlet end of the control fluid in the second fluid region, and the control handle is at the minimum of the flow regulation region of the first fluid region In the position (stop position in the single thermal mode), the first fluid inlet end and the fluid outlet end communicate through the passage on the moving piece, and as the adjustment value increases, the area of the overlapping area of the passage on the moving piece and the first fluid inlet end increases, The handle is adjusted from the first fluid region to the second fluid region and the area of the overlap region is reduced.

Specifically, FIG. 13 is a schematic cross-sectional view of the fixing piece 1. The upper left side of the drawing is a cold water inlet hole 11, the upper right side is a hot water inlet hole 12, and the lower part is a water outlet hole 13. Figure 14 is a schematic cross-sectional view of the movable piece 2, in the middle of which is the passage 21. 15 is a schematic diagram of the stop position in the single-heat mode, and FIG. 16 is a schematic diagram of the stop position in the single-cool mode, and the stop position in the single-heat mode in the present embodiment is compared with the single-handle double-sleeve spool of the ceramic piece (in the figure) Offset in the upper right, there is no change in the position of the stop in single cooling mode.

In this embodiment, the stop position in the single-heat mode is shifted to the upper right (in the figure), and when the control handle is placed in the single-heat mode, the hot water inlet hole 12 and the water outlet hole 13 on the fixed piece 1 are Between the passage of the passage 21 on the rotor 2, the hot water inlet 12 communicates with the water outlet 13 to bring the embodiment to a single thermal mode critical state, see FIG.

Compared with the single-handle double common valve core of the ceramic piece, the state of the stop valve core in the single cooling mode does not change in this embodiment, and the water-saving valve core is in the closed state, see FIG.

In this embodiment, the stop position from the single-heat mode to the single-heat mode upper stop is the water-saving spool single-heat mode large flow adjustment area, see FIG. 17; from the single-heat mode stop position to the single-cool mode stop position For the water-saving spool single heat mode small flow adjustment area, see Figure 18. The arrows in the figure show the direction of movement of the rotor 2 during flow adjustment.

In this embodiment, the manner in which the stop position in the single thermal mode is shifted to the upper right (in the figure) is as follows: the valve device passes through the limiting device to make the channel on the movable piece and the first fluid in the first fluid region. The distance between the inlet ends is closer than the distance between the passage on the rotor and the second fluid inlet end of the control handle in the second fluid region, the valve device includes a casing and an external handle, and the valve core and the valve core are disposed therein a housing and a control handle, the external handle is connected to and operated by the control handle, the valve core comprises a sealing piece formed by a fixing piece and a moving piece, the limiting element device is disposed on the moving piece and/or the fixing piece, or the limiting element device Disposed on the rotor and/or the valve core housing, or the limiting device is disposed on the control handle and/or the valve core housing, or the limiting device is disposed on the control handle and/or the outer casing, or the limiting device is disposed On the outside handle and / or on the outer casing.

Specifically, the limiting device is respectively disposed on the movable piece and the fixed piece separately or simultaneously; the limiting element device is respectively disposed on the moving piece and the valve core housing separately or simultaneously; and the limit is set on the control handle and the valve core housing respectively The bit device is provided with a limit device on the handle and the faucet casing respectively or at the same time; respectively, or a method of setting a limit device on the faucet handle and the faucet casing at the same time.

Example 6

Referring to Figure 19, this embodiment is substantially identical to Embodiments 1, 2, except that the first fluid inlet end, the second fluid inlet end, and the fluid outlet end of the valve device are separately disposed in two or three single devices. Inside. Preferably, as shown in this embodiment, the fluid outlet end and the operating mechanism are integrated together at the operating end, and the operating mechanism performs on, off and flow control respectively on the first fluid inlet end and the second fluid inlet end of the distal end. Generally, the first fluid inlet end and the second fluid inlet end are respectively electrically controlled valves, and the fluids of the two are collected to the fluid outlet end, and the operating mechanism of the operating end is an electronic control device, which passes through the control line or wirelessly (dotted line in the figure). On, off, and flow control are performed on the first fluid inlet end and the second fluid inlet end, respectively.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

1‧‧‧Fixed tablets
11‧‧‧ cold water inlet
12‧‧‧Hot water inlet
13‧‧‧Water outlet
2‧‧‧moving
21‧‧‧ channel

Fig. 1 is a schematic cross-sectional view showing a water-saving valve core in the third embodiment. Fig. 2 is a schematic cross-sectional view showing a water-saving valve core in the third embodiment. Fig. 3 is a schematic cross-sectional view showing a water saving valve body in the third embodiment. Fig. 4 is a schematic cross-sectional view showing the water-saving valve core of the third embodiment. Fig. 5 is a schematic cross-sectional view showing a water saving valve body in the third embodiment. Fig. 6 is a schematic cross-sectional view showing a water saving valve body in the third embodiment. Fig. 7 is a schematic cross-sectional view showing a water-saving valve core in the fourth embodiment. Fig. 8 is a schematic cross-sectional view showing a water saving valve body in the fourth embodiment. Fig. 9 is a schematic cross-sectional view showing a water-saving valve element in the fourth embodiment. Fig. 10 is a schematic cross-sectional view showing a water saving valve body in the fourth embodiment. Fig. 11 is a schematic cross-sectional view showing a water-saving valve element in the fourth embodiment. Fig. 12 is a schematic cross-sectional view showing a water-saving valve core of the fourth embodiment. Fig. 13 is a schematic cross-sectional view showing a water-saving valve core in the fifth embodiment. Fig. 14 is a schematic cross-sectional view showing a water-saving valve body in the fifth embodiment. Fig. 15 is a schematic cross-sectional view showing the water-saving valve core of the fifth embodiment. Fig. 16 is a schematic cross-sectional view showing a water saving valve body in the fifth embodiment. Fig. 17 is a schematic cross-sectional view showing a water-saving valve body in the fifth embodiment. Fig. 18 is a schematic cross-sectional view showing a water-saving valve element in the fifth embodiment. 19 is a flow chart showing the apparatus of Embodiment 6.

12‧‧‧Hot water inlet

13‧‧‧Water outlet

21‧‧‧ channel

Claims (28)

A valve device comprising a valve device that controls a fluid passage state when a fluid passes, and an operating mechanism that achieves the aforementioned control by operating in an operating region thereof, the valve device having a first fluid inlet end, a second fluid inlet end, and a fluid outlet The operating area of the operating mechanism is divided into a mixing degree adjusting area for adjusting the degree of mixing of the first fluid and the second fluid, and a flow regulating area for adjusting the flow rate of the fluid outlet end thereof in the mixing degree adjusting area, and the mixing degree adjusting area includes a necessary The fluid outlet end only exits the first fluid region of the first fluid, and the fluid outlet end only exits the second fluid region of the second fluid, and the optional fluid outlet end exits the mixed region of the first fluid and the second fluid mixed fluid, It is characterized in that the flow rate of the minimum stop of the flow regulating region of the first fluid region of the operating mechanism is greater than zero, and the flow of the minimum stop of the flow regulating region of the second fluid region is equal to zero. The valve device of claim 1, wherein the first fluid inlet end, the second fluid inlet end and the fluid outlet end of the valve device are integrated into a single device, or the first fluid inlet end, The two fluid inlet end and the fluid outlet end are separately disposed in two or three single devices. The valve device according to claim 1, wherein the valve device comprises a sealing piece formed by a fixing piece and a moving piece, and the operating mechanism is a control handle for controlling the sealing and sliding of the moving piece relative to the fixed piece, and the fixing piece is provided with a separation. a first fluid inlet end, a second fluid inlet end and a fluid outlet end, the movable piece is provided with a passage for communicating the first fluid inlet end and the fluid outlet end when the movable piece is slidingly sliding relative to the fixed piece, or the second a fluid inlet end and a fluid outlet end, or a first fluid inlet end, a second fluid inlet end, and a fluid outlet end; the first fluid inlet end and the fluid outlet end are in communication with the passage on the rotor when the handle is in the first fluid region, When the handle is in the second fluid region, the second fluid inlet end and the fluid outlet end are communicated through the passage on the moving piece, and when the control handle is in the mixing region, the first fluid inlet end, the second fluid inlet end and the fluid outlet end pass through the moving piece The passage of the passage; when the control handle is adjusted in the flow adjustment area, the passage on the rotor and the first fluid inlet end, the second fluid inlet end and the fluid outlet end The area of the overlapping area changes; when the control handle is at the minimum stop position of the flow regulating area of the first fluid area, the first fluid inlet end and the fluid outlet end communicate through the passage on the moving piece, and the flow adjustment in the second fluid area At the minimum stop of the zone, the second fluid inlet end and the fluid outlet end are disconnected. The valve device of claim 3, wherein the first fluid inlet end has an extension bent toward the fluid outlet end with respect to the second fluid inlet end, and the flow adjustment of the control handle in the first fluid region When the minimum stop position of the region, the extension portion and the fluid outlet end of the first fluid inlet end communicate with the passage on the moving piece, and the area of the overlapping area of the passage on the moving piece and the extending portion increases as the adjustment value increases, with the control handle The area of the overlap region is reduced from the first fluid region to the second fluid region. The valve device of claim 3, wherein the first fluid inlet end is inclined toward the fluid outlet end with respect to the second fluid inlet end, and the control handle has a minimum stop in the flow regulating region of the first fluid region. When the first fluid inlet end is relatively close to the fluid outlet end and the fluid outlet end is communicated through the passage on the moving piece, and as the adjustment value becomes larger, the area of the passage on the moving piece and the overlapping area of the area increases, with the control handle from the first The fluid region is adjusted to the second fluid region and the area of the overlap region is reduced. The valve device of claim 3, wherein the first fluid inlet end and the second fluid inlet end are at a distance from the fluid outlet end, but the passage of the control handle on the movable piece in the first fluid region is The distance between the inlet ends of a fluid is closer to the distance between the passage on the rotor and the second fluid inlet end of the control fluid in the second fluid region, and the control handle is at the minimum stop of the flow adjustment region of the first fluid region The first fluid inlet end and the fluid outlet end communicate through the passage on the moving piece, and the area of the overlapping area of the passage on the moving piece and the first fluid inlet end increases as the adjustment value increases, with the control handle from the first fluid area to the second The fluid area is adjusted and the area of the overlap area is reduced. The valve device of claim 6, wherein the distance between the passage on the movable piece and the first fluid inlet end of the control handle when the control handle is in the first fluid region is compared with the control handle. The second fluid region is closer to the passage between the movable piece and the second fluid inlet end, and the valve device comprises a casing and an external handle, the valve body is provided with a valve core and a valve core casing and a control handle, and the external handle is connected with the control handle And operating it, the valve core comprises a sealing piece composed of a fixing piece and a moving piece, the limiting element device is disposed on the moving piece and/or the fixed piece, or the limiting element device is disposed on the moving piece and/or the valve core casing , or the limiting device is disposed on the handle and/or the spool housing, or the limiting device is disposed on the handle and/or the housing, or the limiting device is disposed on the external handle and/or the housing. The valve device according to claim 1, wherein the first fluid inlet end of the valve device is a hot fluid inlet end, and the flow rate of the minimum stop of the operating mechanism in the flow regulating region of the first fluid region is greater than zero. Less than 3 liters/minute, or greater than 3 less than 5 liters/minute, or greater than 5 liters/minute. The valve device according to claim 1 or 3, wherein the valve device is a single-handle double valve core, the operating mechanism is a control handle, and the minimum stop position of the control handle in the flow regulating region is a lower stop position; The handle is a single-heat mode of the spool mode in the first fluid region, and a single-cool mode of the spool mode in the second fluid region; the valve device has an open state in which the fluid outlet end flow is greater than zero to the spool state, the fluid The flow at the outlet end is equal to zero, which is the closed state of the spool state; when the control handle is in the lower stop position of the single cooling mode, the flow at the outlet end of the fluid is greater than zero, at which time the spool is in a single cold mode critical state or saves state, or, when controlled When the shank is in the lower stop position of the single thermal mode, the flow rate at the fluid outlet end is greater than zero, and the spool is in a single thermal mode critical state or saved state. The valve device according to claim 9 is characterized in that: the maximum stop position of the control handle in the flow adjustment area is the upper stop position, and the adjustment position is between the upper stop position and the lower stop position; when the control handle is in the single When the cold mode is in the lower stop position, the flow rate at the fluid outlet end is greater than zero. At this time, the spool is in the single cold mode critical state or saved state, and the spool is in the closed state when the control handle is in the bottom stop position of the single heat mode, from the single In the cold mode, the stop position to the single cold mode is the single cold mode large flow adjustment area, from the single cold mode stop position to the single heat mode stop position is the single cold mode small flow adjustment area; or, when the handle is at When the bottom stop position of the single thermal mode, the flow rate at the fluid outlet end is greater than zero. At this time, the spool is in the single thermal mode critical state or the state is saved, and the spool is in the closed state when the control lever is in the lower stop position of the single cold mode. In the single-heat mode, the stop position to the single-heat mode is the single-heat mode large flow adjustment area. The single-heat mode low-flow adjustment area is from the single-heat mode stop position to the single-cool mode stop position. The valve device of claim 1, characterized in that: the flow rate of the maximum stop position of the flow regulating region of the first fluid region of the operating mechanism, and the maximum stop of the flow regulating region of the second fluid region The traffic is not equal. A thermal fluid supply system comprising a valve device and a thermal fluid supply device having a heating system for heating the fluid therein, the hot fluid outlet of the thermal fluid supply device being in communication with the fluid inlet end of the valve device, and the operating mechanism of the valve device Controlling the thermal fluid supply to turn its hot fluid supply on or off, the thermal fluid supply having a minimum flow to shut off its heating system, the flow of the fluid inlet of the valve device being lower than the minimum flow, the thermal fluid supply will turn off its heating The valve device of any one of claims 1 to 11, wherein the hot fluid outlet of the thermal fluid supply device communicates with the first fluid inlet end of the valve device, the operation of the valve device The flow rate of the first fluid inlet end of the mechanism is greater than zero at the minimum stop of the flow regulating region of the first fluid zone, but below the minimum flow rate at which the thermal fluid supply shuts down its heating system. A fluid supply system comprising at least one valve device, and a fluid supply device, wherein fluid outlets of the fluid supply device are respectively in communication with fluid inlet ends of the respective valve devices, and control fluid inlet end flow control fluid supply devices according to an operating mechanism of the valve device The fluid supply condition is characterized in that the valve device is the valve device of any one of claims 1 to 11, wherein the fluid outlet of the fluid supply device is in communication with the first fluid inlet end of each valve device. The fluid supply system of claim 13, wherein the fluid supply device has an identification device for identifying a flow rate signal of each valve device at a minimum stop position of a flow regulating region of the operating mechanism in the first fluid region And a control device that controls its internal operation based on the recognition result of the identification device. The fluid supply system of claim 13 or 14, wherein the fluid supply device is a thermal fluid supply device having a heating system for heating the internal fluid thereof, the thermal fluid outlet of the thermal fluid supply device, and each The first fluid inlet end of the valve device is in communication and the operating fluid of the valve device controls the flow of the hot fluid supply to the first fluid inlet end flow control hot fluid supply device. The utility model relates to a single-handle double water-saving valve core. The valve core mode has a single cooling mode and a single heat mode, and the control handle is placed in an adjustment area and a lower stop position, and the spool state has an open state and a closed state, and is characterized in that the handle is When the single cold mode is placed in the stop position, the water saving spool is in the single cooling mode to save state or critical state, or the water saving spool is in the single thermal mode saving state or critical state when the control handle is placed in the single thermal mode. The single-handle double-saving water-saving valve core according to claim 16 is characterized in that the control handle is placed at the upper position; when the control handle is placed in the single-cool mode, the water-saving spool is single-cooled. The mode saves the state or the critical state. When the control handle is placed in the single-heat mode, the water-saving spool is closed. From the single-cool mode to the single-cool mode, the upper stop is the water-saving spool single-cooling mode and the large flow adjustment area. The stop position from the single cold mode to the single heat mode is the small flow adjustment area of the water-saving spool single-cooling mode; or, when the control handle is placed in the single-heat mode, the water-saving spool is in the single-heat mode saving state or In the critical state, the water-saving spool is closed when the control handle is placed in the single-cool mode, and the stop position from the single-heat mode to the single-heat mode is the water-saving spool single-heat mode large flow regulation area, from single heat The stop position from mode stop to single cold mode is the water flow spool single heat mode small flow adjustment area. A single-handle double-water-saving spool according to claim 16 or 17, wherein the spool mode further comprises a hot and cold mixing mode. The single handle double water-saving valve core according to claim 16 or 17 or 18, wherein the control inlet is placed in the single cold mode and the cold water inlet hole and the water outlet hole are fixed on the fixed piece. During the communication between the channels on the moving piece, the cold water inlet hole communicates with the water outlet hole, so that the water saving valve core is in a single cooling mode to save state or a critical state; or, when the control handle is placed in the single heat mode, the Between the hot water inlet hole and the water outlet hole on the fixed piece, the hot water inlet hole communicates with the water outlet hole through the communication of the upper passage of the moving piece, so that the water saving valve core is in a single heat mode saving state or a critical state. The single-handle double-saving water-saving valve core according to claim 19, wherein the hot water inlet hole has an extension portion bent toward the water outlet hole with respect to the cold water inlet hole, and the control handle is stopped in the single heat mode. In the position, the extension portion of the hot water inlet hole and the water outlet hole communicate through the passage on the moving piece, and the area of the overlapping area of the passage on the upper moving piece and the extending portion increases with the lower stop position, and the control handle moves from the single heat mode to The single cooling mode is adjusted and the area of the overlapping area is reduced; or, the cold water inlet hole has an extension portion bent toward the water outlet hole relative to the hot water inlet hole, and the extension of the cold water inlet hole when the control handle is stopped in the single cooling mode The portion and the water outlet communicate with each other through the passage on the moving piece, and the area of the overlapping area of the passage on the upper moving piece and the extending portion increases with the lower stop position, and the area of the overlapping area decreases as the control handle is adjusted from the single cooling mode to the single heating mode. The single-handle double-saving water-saving valve core according to claim 19, wherein the hot water inlet hole is inclined toward the water outlet hole with respect to the cold water inlet hole, and the control handle is in the single-heat mode when the control seat is stopped. The area of the water hole relatively close to the water outlet hole and the water outlet hole communicate with the passage on the moving piece, and the area of the overlapping area of the channel on the upper moving piece and the area increases with the lower stop position, and the control handle moves from the single heat mode to the single cooling mode. Adjusting and reducing the area of the overlapping area; or, the cold inlet hole is inclined closer to the water outlet hole than the hot water inlet hole, and when the control handle is stopped in the single cooling mode, the area of the cold inlet hole relatively close to the outlet hole and the outlet hole pass The passages on the moving piece are connected, and the area of the overlapping area of the channel on the moving piece and the area increases with the lower stop position, and the area of the overlapping area decreases as the control handle is adjusted from the single cooling mode to the single heating mode. The single-handle double-saving water-saving valve core according to claim 19, wherein the hot water inlet hole and the cold water inlet hole have the same distance from the water outlet hole, but the passage of the control handle on the movable piece in the single heat mode is The distance between the hot water inlet holes is closer than the distance between the channel on the rotor and the cold water inlet hole when the control handle is in the single cooling mode, and the heat inlet hole and the water outlet hole when the control handle is stopped in the single heat mode. Through the passage on the moving piece, the area of the overlapping area of the channel on the upper moving piece and the hot water inlet hole increases with the lower stop position, and the overlapping area is reduced as the control handle is adjusted from the single heating mode to the single cooling mode; or, the heat is reduced The distance between the inlet hole and the cold inlet hole is the same as the distance from the outlet hole, but the distance between the channel on the rotor and the cold inlet hole in the single-cool mode is smaller than the channel and heat on the rotor in the single-heat mode. The distance between the inlet holes is closer. When the control lever is stopped in the single cooling mode, the cold inlet hole and the outlet hole communicate with each other through the passage on the moving piece, and with the lower stop position, the passage on the moving piece and the cold inlet hole are The area of the overlap area increases, with the control handle from a single cold mold Reducing the overlap area of a heating mode to a single adjustment. The single-handle double-saving water-saving valve core according to claim 22, wherein the distance between the passage on the movable piece and the hot water inlet hole in the single-heat mode is controlled by the limiting element device. The distance between the channel on the moving piece and the cold water inlet hole is closer in the single cooling mode; or the distance between the channel on the moving piece and the cold water inlet hole in the single cooling mode by the limiting element device, Compared with the control handle in the single heat mode, the distance between the passage on the rotor and the hot water inlet hole is closer; the valve device comprises a casing and an external handle, the valve body is provided with a valve core and a valve core casing and a control handle, and the external handle is The handle is connected and operated, and the valve core comprises a sealing piece formed by a fixing piece and a moving piece, the limiting element device is disposed on the moving piece and/or the fixed piece, or the limiting element device is disposed on the moving piece and/or the valve The core housing, or the limiting device is disposed on the handle and/or the spool housing, or the limiting device is disposed on the handle and/or the housing, or the limiting device is disposed on the external handle and/or the housing on. The single-handle double-saving water-saving valve core according to claim 19 is characterized in that: when the water-saving valve core is in the single-heat mode saving state or the critical state, the flow rate of the hot water inlet hole is greater than zero or less than or equal to 3 liters/ Minute. A thermal fluid supply system comprising a valve device and a thermal fluid supply device having a heating system for heating the fluid therein, the hot fluid outlet of the thermal fluid supply device being in communication with the fluid inlet end of the valve device, and the operating mechanism of the valve device Controlling the thermal fluid supply to turn its hot fluid supply on or off, the thermal fluid supply having a minimum flow to shut off its heating system, the flow of the fluid inlet of the valve device being lower than the minimum flow, the thermal fluid supply will turn off its heating The system is characterized in that: the valve device is a single-handle double-water-saving valve core of any one of claims 16 to 24, and the heat fluid outlet of the hot fluid supply device and the heat of the single-handle double water-saving valve core The inlet hole is connected, and the handle of the single-handle double-water-saving spool is in the single-heat mode saving state or critical state, the flow rate of the hot water inlet hole is greater than zero, but lower than the lowest of the heating system of the hot fluid supply device flow. A fluid supply system comprising at least one valve device, and a fluid supply device, wherein fluid outlets of the fluid supply device are respectively in communication with fluid inlet ends of the respective valve devices, and control fluid inlet end flow control fluid supply devices according to an operating mechanism of the valve device The fluid supply condition is characterized in that: the valve device is a single-handle double-water-saving valve core according to any one of claims 16 to 24, and the fluid outlet of the fluid supply device respectively has a single heat mode saving state or criticality The hot water inlet holes of the single-handle double water-saving spools in the state are connected, or communicate with the cold water inlet holes of the single-handle double-saving water-saving spools having the single-cool mode saving state or the critical state. The fluid supply system of claim 26, wherein the fluid supply device has a flow signal for identifying that each of the single-handle double-water-saving spools is stopped in the single-heat mode or the single-cool mode of the control handle. The identification device and the control device that controls the internal operation thereof according to the recognition result of the identification device. The fluid supply system of claim 26 or 27, wherein the fluid supply device is a thermal fluid supply device having a heating system for heating the internal fluid thereof, a thermal fluid outlet of the thermal fluid supply device, and each The hot water inlet of the single-handle double-water-saving spool is connected, and the hot-water supply of the hot fluid supply device is controlled by the control handle of the single-handle double-water-saving spool.