CN113513627B

CN113513627B - Reversing valve and water supply system

Info

Publication number: CN113513627B
Application number: CN202010284399.6A
Authority: CN
Inventors: 巴喜亮; 梁国荣
Original assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2023-04-18
Anticipated expiration: 2040-04-10
Also published as: CN113513627A

Abstract

The invention discloses a reversing valve and a water supply system. The reversing valve comprises a valve body, a reversing valve core and a temperature control assembly, wherein the valve body is provided with a first flow channel with a water inlet, a second flow channel with a first water outlet, a third flow channel with a second water outlet, the second flow channel is also provided with a first communication hole communicated with the first flow channel, the third flow channel is also provided with a second communication hole communicated with the first flow channel, and the first communication hole and the second communication hole are oppositely arranged; the reversing valve core is movably arranged in the flow channel and is provided with an initial position for opening the first communication hole and closing the second communication hole and a reversing position for closing the first communication hole and opening the second communication hole; the temperature control assembly is used for driving the reversing valve core to move from the initial position to the reversing position when the water temperature in the first flow passage is increased. Therefore, the water channel direction is changed by utilizing the water temperature change in the reversing valve, the zero cold water function of the water heater can be realized, and the energy conservation can be realized.

Description

Reversing valve and water supply system

Technical Field

The invention relates to the technical field of zero-cold-water supply, in particular to a reversing valve and a water supply system.

Background

At present, the mode of realizing the function of 'zero cold water' in the water heater is mainly to preheat water in a circulating hot water pipe of a water pump, so that hot water can be directly used when a user uses the water heater.

However, this requires (constantly) circulating preheating of the cooled hot water in the hot water pipe, which is likely to cause energy waste.

Disclosure of Invention

The invention mainly aims to provide a reversing valve, and aims to provide a new scheme for realizing a 'zero cold water' function so as to avoid energy waste.

To achieve the above object, the present invention provides a directional control valve, including:

the valve body is provided with a flow channel, the flow channel comprises a first flow channel with a water inlet, a second flow channel with a first water outlet and a third flow channel with a second water outlet, the second flow channel is also provided with a first communication hole communicated with the first flow channel, the third flow channel is also provided with a second communication hole communicated with the first flow channel, and the first communication hole and the second communication hole are oppositely arranged;

the reversing valve core is movably arranged in the flow channel and is provided with an initial position for opening the first communication hole to close the second communication hole and a reversing position for closing the first communication hole to open the second communication hole; and

the temperature control assembly is arranged in the first flow passage and used for driving the reversing valve core to move from the initial position to the reversing position when the water temperature in the first flow passage is increased.

Optionally, the temperature control assembly comprises a buffer cylinder and a temperature control valve core installed in the buffer cylinder, the temperature control valve core is connected with the inner peripheral wall of the buffer cylinder in a sealing manner, one end of the buffer cylinder is provided with a first temperature control through hole, and the other end of the buffer cylinder is provided with a buffer hole communicated with the first flow channel; the third flow channel is also provided with a second temperature control through hole which is correspondingly arranged with the second communication hole, and the first temperature control through hole and the second temperature control through hole are correspondingly arranged and communicated;

the temperature control valve core comprises a mandril which extends out when the temperature of the temperature control valve core is increased and retracts when the temperature of the temperature control valve core is reduced, and the mandril is used for extending into the third flow channel through the first temperature control through hole and the second temperature control through hole when extending out so as to be abutted against the reversing valve core to drive the reversing valve core to move from the initial position to the reversing position.

Optionally, the temperature control valve element is movably mounted in the damping cylinder, the temperature control valve element has a first position disposed away from the direction changing valve element and a second position disposed close to the direction changing valve element, and the temperature control valve element is configured to move from the first position to the second position when the water pressure in the first flow passage increases; the ejector rod is used for extending out when the temperature control valve core is located at the second position, extending into the third flow channel through the first temperature control through hole and the second temperature control through hole and abutting against the reversing valve core to drive the reversing valve core to move from the initial position to the reversing position.

Optionally, the temperature control valve core comprises a mounting seat and a temperature sensing driving assembly with the ejector rod, the mounting seat is movably mounted in the buffer cylinder, and the mounting seat is connected with the inner peripheral wall of the buffer cylinder in a sealing manner; the temperature sensing driving assembly further comprises a temperature sensing shell arranged on the mounting seat and a temperature sensing medium which expands when being heated, the ejector rod is slidably arranged in the temperature sensing shell, and the temperature sensing medium is arranged in the temperature sensing shell and used for expanding when being heated to enable the ejector rod to extend out and contracting when being cooled to enable the ejector rod to retract.

Optionally, the mounting seat is annular, and the temperature sensing shell is hermetically mounted on the inner side of the mounting seat; and/or the presence of a gas in the gas,

the temperature sensing medium is paraffin, or methanol, or toluene; and/or the presence of a gas in the atmosphere,

the temperature sensing shell comprises a first shell and a second shell, and the first shell and the second shell are assembled to form the temperature sensing shell; and/or the presence of a gas in the atmosphere,

the temperature control assembly further comprises a temperature control reset piece, the temperature control reset piece is a first spring, the first spring is sleeved outside the temperature sensing driving assembly, one end of the first spring is abutted to the inner wall surface of the buffer cylinder, and the other end of the first spring is connected to the mounting seat so that the temperature control valve core has a tendency of resetting to the first position.

Optionally, the buffer cylinder comprises a cylinder body with an opening at one end and a cover body, the cover body is hermetically mounted at the opening of the cylinder body, the buffer hole is formed in the cover body, and the first temperature control through hole is formed in the bottom of the cylinder body; and/or the presence of a gas in the gas,

the other end of the buffer cylinder is provided with a connecting ring boss arranged on the periphery of the first temperature control through hole, and the connecting ring boss is detachably and hermetically arranged in the second temperature control through hole so as to communicate the first temperature control through hole with the second temperature control through hole; and/or the presence of a gas in the gas,

the temperature control assembly further comprises a temperature control reset member for causing the temperature control valve spool to have a tendency to reset to the first position; and/or the presence of a gas in the gas,

the aperture of the buffer hole is less than or equal to 6 mm.

Optionally, the direction changing valve element includes a main body extending along a moving direction of the direction changing valve element, and a sealing ring protruding laterally from the main body, the sealing ring protruding between the first communication hole and the second communication hole, the sealing ring protruding to open the first communication hole and close the second communication hole at the initial position, and the sealing ring protruding to close the first communication hole and open the second communication hole at the direction changing position.

Optionally, the reversing valve core further comprises a guide portion arranged at one end of the main body portion, the guide portion extends along the moving direction of the reversing valve core, the inner wall surface of the second communication hole is provided with a plurality of guide protrusions, a guide sliding hole is defined between the plurality of guide protrusions, the guide portion is slidably arranged in the guide sliding hole, and the temperature control assembly drives the reversing valve core to move through the guide portion; and/or the presence of a gas in the atmosphere,

the reversing valve further comprises a reversing reset piece, the reversing reset piece is a second spring, the second spring is sleeved outside the reversing valve core, one end of the second spring abuts against the inner wall surface of the flow channel, and the other end of the second spring is connected to the convex sealing ring so that the reversing valve core has the tendency of resetting to the initial position.

Optionally, the direction valve further comprises a direction resetting member for making the direction valve core have a tendency to reset to the initial position.

Optionally, the valve body is further provided with an installation through hole communicated with the first communication hole, the reversing valve core is slidably and hermetically installed in the installation through hole, and one end of the reversing valve core extends out of the installation through hole and is provided with a handle.

Optionally, the valve body includes a first valve body and a second valve body, the second flow channel is provided in the second valve body, the first flow channel and the third flow channel are provided in the first valve body, the water inlet is provided in one end of the first valve body, and the other end of the first valve body is detachably and hermetically connected to the second valve body.

The invention also proposes a water supply system comprising:

a water heater having a hot water outlet;

the reversing valve is characterized in that a water inlet of the reversing valve is communicated with the hot water outlet;

the first water end is communicated with the second water outlet of the reversing valve; and (c) a second step of,

and the water inlet end of the water storage container is communicated with the first water outlet of the reversing valve.

Optionally, the water storage container is an energy storage tank for storing high-pressure water, the water supply system further includes a first check valve, a second water end and a pressure reducing device, and the first check valve is connected between the first water outlet and the water inlet end of the energy storage tank and used for introducing water into the energy storage tank in a one-way manner; the water outlet end of the energy storage tank is communicated with the first water inlet end of the second water inlet end, and the second water inlet end of the second water inlet end is communicated with a water supply pipe through the pressure reducing device; and/or the presence of a gas in the gas,

the water supply system further comprises a water mixing device, the water mixing device is provided with a hot water inlet, a cold water inlet and a mixed water outlet, the hot water inlet is communicated with the hot water outlet, the cold water inlet is communicated with the water supply pipe, and the mixed water outlet is communicated with the water inlet.

When a shower or other situations needing hot water are needed, the water heater supplies water to the direction of the reversing valve, at the moment, the water in the hot water pipe is usually cold water, and after the cold water flows into the first flow channel through the water inlet, the cold water flows into the second flow channel through the first connecting hole and enters the storage container through the first water outlet because the reversing valve core is in the initial position, namely the cold water in the hot water pipe does not flow out of the first water end; when hot water in the water heater flows into the first flow channel through the hot water pipe and the water inlet, the water temperature in the first flow channel can be increased, the temperature control assembly can drive the reversing valve to move from the initial position to the reversing position and move to the reversing position, so that the hot water entering the first flow channel can flow into the third flow channel through the second communication hole and flow to the first water end through the second water outlet, and finally the first water end discharges the hot water.

That is, the direction of the water path is changed by using the change of the water temperature in the reversing valve, so that the cold water entering the first flow channel from the water inlet flows out from the second flow channel and the first water outlet, and then the hot water entering the first flow channel flows out from the third flow channel and the second water outlet, thereby realizing the function of 'zero cold water' of the water heater.

Moreover, the reversing valve of the invention can realize the function of 'zero cold water' for the water heater, and does not need to establish a circulation loop and continuously carry out circulation preheating on the cooled hot water in the hot water pipe, thereby realizing energy saving.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a unified embodiment of a water supply system according to the present invention;

FIG. 2 is a structural schematic diagram of a state of the diverter valve of FIG. 1, wherein the diverter valve core is in an initial position, the temperature control valve core is in a first position, and the stem of the temperature control valve core is in a retracted state;

FIG. 3 is a partial schematic view of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a structural schematic diagram of another state of the diverter valve of FIG. 2, wherein the diverter valve core is in the initial position, the temperature control valve core is in the second position, and the stem of the temperature control valve core is in the retracted state;

FIG. 6 is a structural schematic diagram of a further state of the reversing valve of FIG. 2, wherein the reversing valve spool is in the reversing position, the temperature control valve spool is in the second position, and the stem of the temperature control valve spool is in the extended state;

fig. 7 is a schematic structural view of the energy storage tank in fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if the description of "first", "second", etc. is provided in the embodiment of the present invention, the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature.

In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.

The invention provides a reversing valve and a water supply system.

As shown in fig. 1, the reversing valve 100 is used in a water supply system 1000, so that the water supply system 1000 has a zero-cold water function, wherein the water supply system 1000 may be a water supply system 1000 of a water heater 200 (including but not limited to a gas water heater 200 system) or a water supply system 1000 of a wall-hanging stove, and the like.

In one embodiment of the present invention, as shown in fig. 1, the water supply system 1000 includes a water heater 200, a direction valve 100, a first water end 800 and a water storage container.

Wherein the water heater 200 has a hot water outlet 202.

The first water end 800 can be a hot water end such as a shower.

Wherein, the water storage container is used for the water storage.

Wherein, the water heater 200 can be a gas water heater 200, an electric water heater 200, a wall-hanging stove water heater 200, an air energy water heater 200, or the like.

In one embodiment of the present invention, as shown in fig. 2 to 6, the direction valve 100 includes a valve body 10, a direction valve core 20 and a temperature control assembly.

Specifically, the valve body 10 has a flow path including a first flow path 11 having the water inlet 111, a second flow path 12 having the first water outlet 121, and a third flow path 13 having the second water outlet 131, the second flow path 12 having a first communication hole 122 communicating with the first flow path 11, and the third flow path 13 having a second communication hole 132 communicating with the first flow path 11. In this manner, the first flow channel 11 can communicate with the second flow channel 12 through the first communication hole 122, and the first flow channel 11 can also communicate with the third flow channel 13 through the second communication hole 132.

As shown in fig. 1, when the reversing valve 100 is used in a water supply system 1000, the water inlet 111 (for) is connected to a hot water outlet 202 of a water heater 200, the first water outlet 121 (for) is communicated with a water inlet end of a water storage container (it can be understood that if the water discharged from the first water outlet 121 is not required to be reused, the water discharged from the first water outlet 121 can be directly discharged), and the second water outlet 131 (for) is communicated with a first water end 800 (such as a shower head). In this way, the water from the water heater 200 can enter the first flow channel 11 from the water inlet 111 and can flow into the water storage container from the first water outlet 121 for storage, or flow from the second water outlet 131 to the first water end 800.

Specifically, the water supply system 1000 further includes a hot water pipe 400, and the water inlet 111 is communicated with the hot water outlet 202 through the hot water pipe 400.

Further, as shown in fig. 1, the water supply system 1000 further includes a water mixing device 700, the water mixing device 700 has a hot water inlet, a cold water inlet and a mixed water outlet, the hot water inlet is communicated with the hot water outlet 202 through a hot water pipe 400, the cold water inlet is communicated with the water supply pipe, and the mixed water outlet is communicated with the water inlet 111, so as to communicate the water inlet 111 with the hot water outlet 202. In this way, the mixed hot water with a suitable temperature can be delivered to the direction valve 100 by adjusting the water mixing device 700.

Optionally, the mixing device 700 is a mixing valve or other mixing device 700 with similar function as a mixing valve.

The direction valve member 20 is movably disposed in the flow passage, and the direction valve member 20 has a home position for opening the first communication hole 122 to close the second communication hole 132, and a direction position for closing the first communication hole 122 to open the second communication hole 132.

Specifically, as shown in fig. 2, 3 and 5, when the direction valve core 20 is at the initial position, the direction valve core 20 opens the first communication hole 122 and closes the second communication hole 132 to communicate the first flow passage 11 with the second flow passage 12.

As shown in fig. 6, when the direction valve 100 is in the direction change position, the direction valve spool 20 closes the first communication hole 122 and opens the direction change position of the second communication hole 132 to communicate the first flow passage 11 with the third flow passage 13.

In this manner, by driving the direction switching valve body 20 to move between the initial position and the direction switching position, the first flow passage 11 can be selectively communicated with the second flow passage 12 and the third flow passage 13, that is, the direction switching can be performed.

Alternatively, as shown in fig. 2, 3, 5 and 6, the first communication hole 122 is disposed opposite to the second communication hole 132. In this way, the first communication hole 122 and the second communication hole 132 are disposed opposite to each other, so that the direction switching valve body 20 can be controlled to move between the initial position and the direction switching position, thereby switching the water path.

The temperature control assembly is disposed in the first flow channel 11, and the temperature control assembly is configured to drive the reversing valve 100 to move from the initial position to the reversing position when the temperature of water in the first flow channel 11 increases.

Thus, the process of the present invention reversing valve 100 and water supply system 1000 to achieve "zero cold water" for the water heater 200 is roughly:

when a shower or other situations needing hot water are needed, the water mixing valve is opened, the water heater 200 supplies water to the direction of the reversing valve 100, at this time, the water in the hot water pipe 400 is usually cold water, and after the water flows into the first flow channel 11 through the water inlet 111, because the reversing valve core 20 is in the initial position, the cold water flows into the second flow channel 12 through the first communication hole 122 and enters the storage container through the first water outlet 121, that is, the cold water in the hot water pipe 400 does not flow out from the first water end 800; when the hot water in the water heater 200 flows into the first flow channel 11 through the hot water pipe 400 and the water inlet 111, the temperature of the water in the first flow channel 11 increases, so that the temperature control assembly drives the direction valve 100 to move from the initial position to the direction-changing position and to the direction-changing position, so that the hot water entering the first flow channel 11 flows into the third flow channel 13 through the second communication hole 132 and flows to the first water end 800 through the second water outlet 131, and finally the first water end 800 discharges the hot water.

That is, when hot water (such as a shower) needs to be used, cold water in the hot water pipe 400 flows out from the first water outlet 121 and is stored in the water storage container; after the hot water in the water heater 200 flows into the reversing valve 100 through the hot water pipe 400, that is, when the water in the hot water pipe 400 is changed into hot water, the hot water in the hot water pipe 400 flows out from the second water outlet 131 and is sent to the first water end 800, so that the "zero cold water" function of the water heater 200 is realized.

According to the reversing valve 100, the water path direction is changed by using the water temperature change in the reversing valve 100, so that cold water entering the first flow channel 11 from the water inlet 111 flows out from the second flow channel 12 and the first water outlet 121, and then hot water entering the first flow channel 11 flows out from the third flow channel 13 and the second water outlet 131, and therefore the 'zero cold water' function of the water heater 200 can be achieved.

Moreover, the water heater 200 can realize the 'zero cold water' function through the reversing valve 100 of the invention, the 'zero cold water' function can be realized without establishing a circulation loop, and the cooled hot water in the hot water pipe 400 does not need to be continuously circulated and preheated, so that the energy saving can be realized.

Furthermore, since there is no circulation of the water path, there is no possibility that the cold water pipe 300 is mixed with hot water to erroneously start circulation heating or damage other water treatment equipment, so that the water supply system 1000 has high safety and reliability and further realizes energy saving.

Moreover, the reversing valve 100 is installed in front of the first water end 800, the original structure of the water supply system 1000 does not need to be changed greatly, and the reversing valve can be used for various types of water heaters 200 or other devices with heating and water feeding functions, and has strong applicability.

Further, as shown in fig. 2, 3, 5 and 6, the temperature control assembly includes a damping cylinder 30, and a temperature control valve core 40 installed in the damping cylinder 30, wherein the temperature control valve core 40 is hermetically connected to an inner peripheral wall of the damping cylinder 30. Specifically, the peripheral side of the temperature control valve element 40 is hermetically connected to the inner peripheral wall of the cushion cylinder 30. In this manner, the two sides of the temperature control valve core 40 may be made non-communicative, i.e., water on the two sides of the temperature control valve core 40 may not be able to be exchanged.

As shown in fig. 2 to 6, one end of the damping cylinder 30 is provided with a first temperature control through hole 311, and the other end of the damping cylinder 30 is provided with a damping hole 321 communicated with the first flow passage 11. In this way, the water in the first flow passage 11 can enter the buffer cylinder 30 from the punched hole 321, so that the temperature of the water in the buffer cylinder 30 changes with the temperature of the water in the first flow passage 11, and the temperature of the temperature control valve element 40 changes with the temperature of the water in the buffer cylinder 30 and the temperature of the water in the first flow passage 11.

As shown in fig. 2, 3, 5 and 6, the third flow channel 13 further has a second temperature control via hole 134 provided corresponding to the second communication hole 132, and the first temperature control via hole 311 is provided corresponding to and communicates with the second temperature control via hole 134.

The temperature control valve core 40 includes a stem 41 that extends when the temperature of the temperature control valve core 40 increases and retracts when the temperature of the temperature control valve core 40 decreases, and the stem 41 is configured to extend into the third flow passage 13 through the first temperature control via hole 311 and the second temperature control via hole 134 when extending, so as to abut against the direction switching valve core 20 to drive the direction switching valve core 20 to move from the initial position to the direction switching position and to move to the direction switching position. The top rod 41 is disposed corresponding to the first temperature control via hole 311.

It can be understood that, since the temperature control valve core 40 is hermetically connected to the inner peripheral wall of the buffer cylinder 30, the water entering the buffer cylinder 30 from the punching hole 321 cannot flow to the other side of the temperature control valve core 40; and since the first temperature control via hole 311 is communicated with the second temperature control via hole 134, the water in the first flow channel 11 can be prevented from directly entering the third flow channel 13 from the second temperature control via hole 134.

It will be appreciated that the operation of the reversing valve 100 is generally: when cold water enters the first flow channel 11 from the water inlet 111, a part of the water flows into the second flow channel 12 through the first communication hole 122, and the other part of the water flows into the buffer cylinder 30 through the buffer hole 321; then, after the hot water enters the first flow channel 11 from the water inlet 111, on one hand, the hot water heats the buffer cylinder 30 and the temperature control valve core 40, and on the other hand, the hot water exchanges heat with the water in the buffer cylinder 30 through the buffer hole 321 to further heat the temperature control valve core 40, so that the temperature of the temperature control valve core 40 is increased, the ejector rod 41 extends out, the ejector rod 41 extends into the third flow channel 13 through the first temperature control via hole 311 and the second temperature control via hole 134 and abuts against the direction control valve core 20 to drive the direction control valve core 20 to move from the initial position to the direction control position to realize direction control, and therefore zero-cold water is realized.

Further, as shown in fig. 2, 3, 5 and 6, the temperature control valve spool 40 is movably mounted within the damping cylinder 30, the temperature control valve spool 40 having a first position disposed away from the direction valve spool 20 and a second position disposed adjacent to the direction valve spool 20. That is, the temperature control spool 40 is movably installed in the damping cylinder 30 in a direction approaching or departing from the direction spool 20.

The temperature control valve element 40 is adapted to move from the first position to the second position when the water pressure in the first flow passage 11 increases. The plunger 41 is used for extending out when the temperature control valve core 40 is at the second position, and extending into the third flow channel 13 through the first temperature control through hole 311 and the second temperature control through hole 134, so as to abut against the direction control valve core 20 to drive the direction control valve core 20 to move from the initial position to the direction control position, and move to the direction control position.

It will be appreciated that, in this case, the operation of the directional valve 100 is substantially as follows: the mixing valve is opened, the water heater 200 supplies water to the direction switching valve 100, and the water pressure in the first flow passage 11 is increased. Specifically, after cold water enters the first flow channel 11 from the water inlet 111, a part of the water flows into the second flow channel 12 through the first communication hole 122; another portion of the water flows into the damping cylinder 30 through the damping hole 321, and the portion of the water drives the temperature control valve spool 40 to move from the first position to the second position and to the second position. Then, after the hot water enters the first flow channel 11 from the water inlet 111, on one hand, the hot water heats the buffer cylinder 30 and the temperature control valve core 40, and on the other hand, the hot water exchanges heat with the water in the buffer cylinder 30 through the buffer hole 321 to further heat the temperature control valve core 40, so that the temperature of the temperature control valve core 40 is increased, the ejector rod 41 extends out, the ejector rod 41 extends into the third flow channel 13 through the first temperature control via hole 311 and the second temperature control via hole 134 and abuts against the direction control valve core 20 to drive the direction control valve core 20 to move from the initial position to the direction control position to realize direction control, and therefore zero-cold water is realized.

When the water supply is finished, the mixing valve is closed, and the water heater 200 stops supplying water to the direction changing valve 100, but the water temperature in the first flow passage 11 and the buffer cylinder 30 is not immediately/rapidly cooled, i.e., the push rod 41 is not immediately/rapidly retracted. In the reversing valve 100 of the present invention, the temperature control valve core 40 is movably installed in the buffer cylinder 30, and the reversing valve core 20 can be reset to the initial position by resetting the temperature control valve core 40 to the first position, so that when the water heater 200 stops supplying water to the reversing valve 100, the reversing valve core 20 can be reset relatively quickly, and the reversing valve 100 can be reversed relatively quickly.

Further, as shown in fig. 2, 3, 5 and 6, the temperature control assembly further includes a temperature controlled reset 50, the temperature controlled reset 50 being configured to cause the temperature controlled valve spool 40 to have a tendency to reset to the first position. In this way, after the water usage is over, the temperature controlled valve core 40 can be reset to the first position under the action of the temperature controlled reset piece 50, so that the direction switching valve core 20 can be reset to the initial position more quickly.

In an embodiment, the temperature control resetting element 50 may be a magnetic element, for example, the magnetic element includes a first magnetic element disposed on the temperature control valve core 40 and a second magnetic element disposed on the buffer cylinder 30, so that the temperature control valve core 40 has a tendency to reset to the first position by attraction or repulsion between the first magnetic element and the second magnetic element. The temperature control reset element 50 may also be an elastic element (such as a spring or a leaf spring, etc.), so that the temperature control valve core 40 has a tendency to reset to the first position by the elasticity of the elastic element. Of course, the temperature control reset element 50 may be other elements that can cause the temperature control valve core 40 to have a tendency to reset to the first position, and therefore, the detailed description thereof is not necessary.

Further, as shown in fig. 2, 3, 5 and 6, the direction switching valve 100 further includes a direction switching reset member 90, and the direction switching reset member 90 is used for making the direction switching valve core 20 have a tendency to reset to the initial position. In this manner, the direction change valve core 20 can also be reset when the temperature control valve core 40 is reset.

In a specific embodiment, the reversing and restoring element 90 may be a magnetic element, or an elastic element (such as a spring or a spring plate), or the like.

Further, as shown in fig. 2, 3, 5 and 6, the temperature control valve core 40 includes a mounting seat 44 and a temperature sensing driving assembly having a ram 41, the mounting seat 44 is movably mounted in the damping cylinder 30, and the mounting seat 44 is connected with the inner peripheral wall of the damping cylinder 30 in a sealing manner. In this manner, the temperature control valve core 40 can be easily and hermetically mounted in the damping cylinder 30 by providing the mounting seat 44.

As shown in fig. 2, 3, 5 and 6, a first sealing ring (not shown) is disposed between the outer circumferential surface of the mounting seat 44 and the inner circumferential wall of the cushion cylinder 30 to improve the sealing performance.

Further, as shown in fig. 2, 3, 5 and 6, the temperature sensing driving assembly further includes a temperature sensing shell 42 mounted on the mounting seat 44, and a temperature sensing medium (not shown) that expands when exposed to heat, the push rod 41 being slidably mounted in the temperature sensing shell 42, the temperature sensing medium being disposed in the temperature sensing shell 42 for expanding when exposed to heat to extend the push rod 41 and contracting when cooled to retract the push rod 41. In this manner, the extension and retraction of the jack 41 can be achieved.

Alternatively, as shown in fig. 3, the temperature sensing case 42 includes a first case 421 and a second case 422, and the first case 421 and the second case 422 are assembled to form the temperature sensing case 42.

Alternatively, as shown in fig. 3, the mounting seat 44 has a ring shape, and the temperature sensing case 42 is hermetically mounted inside the mounting seat 44. Wherein the first housing 421 is hermetically installed inside the mounting seat 44. In this way, by providing the mounting seat 44 in an annular shape, water entering the cushion cylinder 30 can be brought into direct contact with the temperature sensing shell 42, so as to heat or cool the temperature sensing driving assembly.

Alternatively, as shown in fig. 3, the inner circumferential surface of the mounting seat 44 is provided with an internal thread, the inner circumferential surface of the mounting seat 44 is further provided with a limit step, and the temperature sensing driving assembly further includes a limit nut 43, and the limit nut 43 is screwed with the internal thread to fix the limit protrusion of the temperature sensing shell 42 between the limit nut 43 and the limit step, so that the temperature sensing shell 42 is mounted on the inner side of the mounting seat 44.

Optionally, as shown in fig. 3, the temperature sensing driving assembly further includes a sealing gasket 45 disposed between the limiting nut 43 and the limiting step, so as to improve the sealing performance.

Further, as shown in fig. 2, 3, 5 and 6, the temperature control reset element 50 is a first spring, the first spring is sleeved outside the temperature sensing driving component, one end of the first spring abuts against the inner wall surface of the cushion cylinder 30, and the other end of the first spring is connected to the mounting seat 44, so that the temperature control valve element 40 has a tendency of resetting to the first position. Thus, the temperature control reset element 50 is configured as a first spring, so that the elasticity of the first spring can be utilized to make the temperature control valve core 40 have a tendency of resetting to the first position, and the structure of the temperature control valve core 40 can be simplified.

Specifically, as shown in fig. 2, 3, 5, and 6, the mounting seat 44 includes an annular seal base 441 and an abutting portion 442, the annular seal base 441 is connected to the buffer cylinder 30 in a sealing manner, the abutting portion 442 is disposed on a side surface of the annular seal base 441 facing the third flow passage 13, the abutting portion 442 extends in a direction approaching the third flow passage 13, the abutting portion 442 is disposed at an interval from an inner peripheral wall of the buffer cylinder 30, and the first spring is sleeved outside the abutting portion 442 and abuts against the annular seal base 441. Optionally, the abutment 442 is annular.

Alternatively, as shown in fig. 5 and 6, when the temperature control valve body 40 is at the second position, the abutment portion 442 abuts against the inner wall surface of the seal cylinder to restrain the temperature control valve body 40 at the second position.

Optionally, the temperature sensing medium is paraffin, or methanol, or toluene, or the like.

Certainly, in other embodiments, the temperature sensing driving assembly may also be configured in other structural forms, for example, the temperature sensing driving assembly may include a temperature sensing elastic sheet and an elastic resetting element, so that the push rod 41 is driven to extend by the temperature sensing elastic sheet, and the push rod 41 is retracted by the elastic resetting element; and so on.

Further, as shown in fig. 2, 3, 5 and 6, the buffer cylinder 30 includes a cylinder body 31 with an open end and a cover 32, the cover 32 is hermetically installed at the open end of the cylinder body 31, the buffer hole 321 is formed in the cover 32, and the first temperature control through hole 311 is formed in the bottom of the cylinder body 31. During installation, the thermal control valve core 40 may be installed into the cushion cylinder 30 from the opening of the cushion cylinder 30. In this manner, installation of the thermal control valve cartridge 40 may be facilitated.

One end of the first spring abuts against the bottom wall of the cylinder body 31, and the other end abuts against the annular seal base 441.

Further, as shown in fig. 2, 3, 5 and 6, the other end of the cushion cylinder 30 is provided with a connection ring projection 312 disposed at the periphery of the first temperature control through hole 311, and the connection ring projection 312 is detachably and hermetically installed in the second temperature control through hole 134, so that the first temperature control through hole 311 communicates with the second temperature control through hole 134. Wherein, the connecting ring projection 312 is arranged on the outer side surface of the bottom of the cylinder body 31.

Specifically, as shown in fig. 2, 3, 5 and 6, the connection ring projection 312 and the second temperature control through hole 134 are connected by a screw connection structure. Thus, the connection strength and the sealing property can be improved.

Optionally, a second sealing ring (not shown) is disposed between the bottom of the cylinder body 31 and the flow channel wall of the third flow channel 13, and the second sealing ring is sleeved outside the connecting ring protrusion 312 to improve the sealing performance.

Further, as shown in fig. 2, 3, 5 and 6, the direction changing valve body 20 includes a main body 21 extending in a moving direction of the direction changing valve body 20, and a sealing ring protrusion 22 protruding laterally from the main body 21, the main body 21 is movably disposed in the flow passage, the sealing ring protrusion 22 is disposed between the first communication hole 122 and the second communication hole 132, the sealing ring protrusion 22 opens the first communication hole 122 and closes the second communication hole 132 at the initial position, and the sealing ring protrusion 22 closes the first communication hole 122 and opens the second communication hole 132 at the direction changing position. Thus, the structure of the direction switching valve core 20 can be simplified. Of course, the direction switching valve core 20 may be provided with other structures, such as two sealing ring protrusions 22 on the main body 21 for closing the second communication hole 132 at the initial position and the first communication hole 122 at the direction switching position; and so on.

Optionally, the direction changing valve core 20 further includes a third sealing ring 24, the third sealing ring 24 is sleeved outside the sealing ring protrusion 22, and in the initial position, the third sealing ring 24 is configured to cooperate with the sealing ring protrusion 22 to block the second communication hole 132; in the reversing position, the third sealing ring 24 is used for being matched with the sealing ring protrusion 22 to block the first communication hole 122. Thus, the sealing property can be improved.

Optionally, an accommodating ring groove is formed in the outer side surface of the sealing ring protrusion 22, and the third sealing ring 24 is disposed in the accommodating ring groove.

Optionally, a first accommodating sinking groove matched with the third sealing ring 24 is provided at the orifice of the first communication hole 122.

Optionally, a second accommodating sinking groove matched with the third sealing ring 24 is arranged at the orifice of the first communication hole 122.

Further, as shown in fig. 2, 3, 5 and 6, the direction changing valve body 20 further includes a guide portion 23 provided at one end of the body portion 21, the guide portion 23 extends in a moving direction of the direction changing valve body 20, an inner wall surface of the second communication hole 132 is provided with a plurality of guide protrusions 133, a guide slide hole is defined between the plurality of guide protrusions 133, the guide portion 23 is slidably provided in the guide slide hole, and a water passage is formed between adjacent guide protrusions 133. In this way, the movement stability of the direction change valve body 20 can be improved, and the reliability of the direction change valve 100 can be improved.

Wherein, the temperature control component drives the reversing valve core 20 to move through the guide part 23. Specifically, the plunger 41 is configured to abut against the guide portion 23 to drive the direction switching valve element 20 to move.

Specifically, the channel wall of the third channel 13 includes a side convex section (not shown) extending in a direction approaching the second channel 12, and the second communication hole 132 is provided in the side convex section. The guide projection 133 is provided on the inner wall surface of the side projection.

Further, as shown in fig. 2, 3, 5 and 6, the direction changing reset member 90 is a second spring, the second spring is sleeved outside the direction changing valve core 20, one end of the second spring abuts against the inner wall surface of the flow passage, and the other end of the second spring is connected to the sealing ring protrusion 22, so that the direction changing valve core 20 has a tendency of resetting to the initial position. Thus, the structure can be simplified.

Specifically, the main body 21 is movably disposed in the second flow path 12.

Optionally, a limiting groove (not shown) is formed on an inner wall surface of the second flow passage 12, and one end of the second spring is disposed in the limiting groove.

Optionally, a limiting protrusion (not shown) is convexly arranged on the side surface of the sealing ring protrusion 22 facing the second flow channel 12, and the other end of the second spring is sleeved on the limiting protrusion.

Further, the buffer holes 321 are micro holes, and the diameter of each buffer hole 321 is less than or equal to 6 mm.

It is understood that during the process of using hot water by the user, when the user is boiling water for a second time in a short time (i.e. a first preset time, which is optionally greater than or equal to 4 minutes, and less than or equal to 15 minutes, such as 5 minutes), since the heat dissipation speed of the hot water in the hot water pipe 400 is faster than that of the thermo-valve core 40 in the damping cylinder 30, that is, the residual temperature of the thermo-valve core 40 in the buffer cylinder 30 is not easily dissipated, so that "the water in the hot water pipe 400 becomes cool", but the temperature of the thermo-valve core 40 in the buffer cylinder 30 is still high, i.e. the push rod 41 is not retracted yet ", so that it is easy to" when the water is boiled for two times within the first preset time, the direction change valve 100 completes the direction change (i.e. the temperature control valve core 40 moves from the first position to the second position, and since the push rod 41 is in the extended state, the temperature control valve core 40 will drive the direction change valve core 20 to move from the initial position to the direction change position at the same time), but the first water end 800 sends out cold water "in the hot water pipe 400, to solve this problem, the buffering hole 321 may be made as a minute hole, so that, when the water mixing device 700 is opened again, the cold water entering the first flow passage 11 may slowly enter the buffering cylinder 30 from the buffering hole 321, thereby driving the temperature control valve core 40 to slowly move from the first position to the second position, in this process, the cold water introduced into the damping cylinder 30 cools the temperature control valve core 40, thereby retracting the plunger 41, and thus moving the temperature control valve core 40 to the second position, the plunger 41 is in a retracted state, to prevent the reversing valve 100 from being reversed when the hot water pipe 400 is still cold water, thereby avoiding the situation that the hot water does not reach the first water outlet 800 (such as a shower head) when the hot water is used for the second time in a short time.

Optionally, the aperture of the buffer hole 321 is less than or equal to 4 mm. More specifically, the diameter of the buffer hole 321 is less than or equal to 2 mm.

Further, as shown in fig. 2, 3, 5 and 6, the valve body 10 is further provided with a mounting through hole 14 communicated with the first communication through hole 122, the direction changing valve core 20 is slidably and hermetically mounted in the mounting through hole 14, one end of the direction changing valve core 20 extends out of the mounting through hole 14, and is provided with a handle 25.

Specifically, the main body portion 21 is slidably and sealingly mounted in the mounting through-hole 14. Optionally, a third sealing ring 24 (not shown) is disposed between the main body 21 and the inner wall surface of the mounting through hole 14 to improve sealing performance.

Specifically, one end of the main body 21 extends out of the mounting through hole 14, and is provided with a handle 25.

It can be understood that, when the user boils water for the second time in a short time (i.e. the second preset time which is less than the first preset time and in which the water in the hot water pipe 400 is still not cooled, and the second preset time which is less than or equal to 3 minutes, such as 1 minute, etc.), although the water in the hot water pipe 400 is still not cooled, the buffer hole 321 is a micro hole, so that the motion of the temperature control valve core 40 in the buffer cylinder 30 is slow, and the direction change valve 100 cannot be rapidly changed, at this time, the user can pull the direction change valve core 20 outwards through the handle 25 to move the direction change valve core 20 to the direction change position, so that the first water end 800 can immediately cut hot water.

Alternatively, the handle 25 may be provided separately from the main body 21, and the handle 25 may be detachably attached to one end of the main body 21. In this manner, the body portion 21 may be easily installed to facilitate assembly of the reversing valve 100. Alternatively, the handle 25 and the main body 21 are connected by a screw connection structure.

Further, as shown in fig. 2, 3, 5 and 6, the valve body 10 includes a first valve body 15 and a second valve body 16, the second flow channel 12 is disposed in the second valve body 16, the first flow channel 11 and the third flow channel 13 are disposed in the first valve body 15, the water inlet 111 is disposed at one end of the first valve body 15, and the other end of the first valve body 15 is detachably and hermetically connected with the second valve body 16. The two ends of the first valve body 15 are open, wherein one end of the first valve body is open, i.e. the water inlet 111, and the other end of the first valve body is open corresponding to the first communication hole 122, so that the first flow channel 11 is communicated with the second flow channel 12. Thus, the forming difficulty of the valve body 10 can be reduced, and the production cost can be reduced.

Specifically, the second valve body 16 includes a valve body 161 having the second flow passage 12, and an annular connecting portion 162 laterally protruding from an outer peripheral surface of the valve body 161, the mounting through hole 14 is formed in the valve body 161, the annular connecting portion 162 is formed outside the first connecting hole 122, and the other end of the first valve body 15 is detachably and sealingly connected to an inner side of the annular connecting portion 162.

Optionally, the inner side surface of the annular connecting portion 162 is provided with an internal thread, and the other end of the first valve body 15 is provided with an external thread which is connected with the internal thread in a matching manner. In this way, the stability and sealing property of the connection between the first valve body 15 and the second valve body 16 can be improved.

Optionally, a fourth sealing ring is further disposed between the annular connecting portion 162 and the first valve body 15 to improve the sealing performance.

Further, as shown in fig. 2, 3, 5 and 6, the direction valve 100 further includes an annular end cover 60, the annular end cover 60 is connected to the water inlet 111 through a threaded connection structure, and an inner end of the annular end cover 60 abuts against (the cover 32 of) the cushion cylinder 30 to fix the cushion cylinder 30.

Further, as shown in fig. 2, 3, 5 and 6, the reversing valve 100 further includes a water inlet assembly including a connection pipe 70 and a water inlet nut 80, the water inlet assembly being hermetically connected to the inner side of the annular end cover 60.

Further, as shown in fig. 1 and 7, the water storage container is an energy storage tank 900 for storing high-pressure water, the water supply system 1000 further includes a first one-way valve 610, a second water end 620 and a pressure reducing device 630, the first one-way valve 610 is connected between the first water outlet 121 and the water inlet end of the energy storage tank 900, so as to guide water into the energy storage tank 900 in one way; the water outlet end of the energy storage tank 900 is connected to the first water inlet end of the second water inlet end 620, and the second water inlet end of the second water inlet end 620 is connected to the water supply pipe through the pressure reducing device 630, so that the water in the water supply pipe is reduced in pressure and supplied to the second water inlet end.

Optionally, the water supply pipe is a tap water pipe.

Optionally, the second water end 620 is a toilet, a cold water faucet, a faucet of a mop bucket, or the like.

Optionally, the pressure reducing device 630 is a pressure reducing valve or other device with a pressure cut-off effect.

Therefore, cold water flowing out of the first water outlet 121 can pass through the first check valve 610 and then be stored in the energy storage tank 900 so as to be reused; and the water stored in the energy storage tank 900 can be prevented from flowing back into the second flow passage 12 by providing the first check valve 610.

Furthermore, the pressure reducing device 630 is disposed between the second water inlet end of the second water end 620 and the water supply pipe, so that the water pressure of the water supplied from the water supply pipe to the second water end 620 can be reduced, and the water pressure of the water supplied from the water supply pipe to the second water end 620 is lower than the water pressure of the water supplied from the energy storage tank 900 to the second water end 620, so that the water in the energy storage tank 900 can be preferentially supplied to the second water end 620.

For example, when the second water end 620 is a toilet and the water supply pipe is a tap water pipe, it can be understood that the energy storage tank 900 stores water with a certain water pressure, for example, the water pressure in the energy storage tank 900 is optionally 0.15MPa. The water pressure of the tap water is usually 0.2-0.4 MPa, but the pressure of the water supplied from the water supply pipe to the second water inlet end 620 (i.e., the tap water entering the toilet) can be reduced to about 0.1MPa (or even lower or slightly higher) by providing the pressure reducing device 630 between the second water inlet end of the second water inlet end 620 and the water supply pipe.

In this way, since the water pressure of the water supplied to the second water end 620 by the water supply pipe is lower than the water pressure of the water supplied to the second water end 620 by the energy storage tank 900, when the toilet is filled with water, the water in the energy storage tank 900 can be preferentially introduced into the toilet to be used, and the water in the energy storage tank 900 cannot be used because the water pressure of the tap water is higher than the water pressure of the water in the energy storage tank 900. When the water in the energy storage tank 900 is used up, the tap water is continuously used for replenishment.

Theoretically, a 4-mouth house takes a bath 1 time per person every day, the house type is 120 square meters, 5-6L of cold water can be stored every time, and as long as the volume of the energy storage tank 900 is large enough, such as 25L, the water stored 4 times can be met once. Meanwhile, the closestool can be used up by about 4L of water after being flushed with 1 time, and 4 families can basically use the closestool for 2 times per day on average.

Further, as shown in fig. 1, the water supply system 1000 further includes a second check valve 640, and the second check valve 640 is disposed between the water outlet end of the energy storage tank 900 and the first water inlet end of the second water end 620, so as to unidirectionally guide the water in the energy storage tank 900 to the second water end 620. Thereby preventing backflow.

Optionally, as shown in fig. 1, the water inlet end and the water outlet end of the energy storage tank 900 are the same end, i.e., the water inlet end and the water outlet end, and the water supply system 1000 further includes a first three-way valve 650, where the first three-way valve 650 is disposed at the water inlet end and the water outlet end of the energy storage tank 900 to respectively connect the first water outlet 121 and the second water outlet 620.

Optionally, as shown in fig. 1, the first water inlet end and the second water inlet end of the second water end 620 are the same end, that is, a water inlet end, and the water supply system 1000 further includes a second three-way valve 660, where the second three-way valve 660 is disposed at the water inlet end of the energy storage tank 900 to respectively connect the energy storage tank 900 and the water supply pipe.

Optionally, as shown in fig. 1, the water supply system 1000 further includes a cold water pipe 300, wherein one end of the cold water pipe 300 is connected to the water supply pipe, and the other end of the cold water pipe 300 is connected to a cold water inlet of the water mixing device 700.

Optionally, a second water inlet end of the second water using end 620 is connected to the cold water pipe 300.

Optionally, the water heater 200 has a cold water inlet 201, and the water supply system 1000 further includes a water inlet pipe 500, wherein one end of the water inlet pipe 500 is connected to the water supply pipe, and the other end is connected to the cold water inlet 201.

Further, as shown in fig. 1 and 7, the energy storage tank 900 includes a housing 910 and a water bag 920 disposed inside the housing 910 for storing water, a closed cavity is formed between an outer surface of the water bag 920 and an inner wall surface of the housing 910, the closed cavity is filled with compressible gas, and the water bag 920 is respectively communicated with the first water outlet 121 and the second water end 620 (e.g., via a first three-way valve 650, etc.). In this way, the energy storage tank 900 functions to store high pressure water.

Of course, the water storage tank may also be configured in other structural forms, for example, the energy storage tank 900 includes a housing 910 and an air bag disposed inside the housing 910, a compressible gas is disposed inside the air bag, a sealed cavity is disposed between an outer surface of the air bag and an inner wall surface of the housing 910, and the sealed cavity is used for storing water, that is, the sealed cavity (e.g., through the first three-way valve 650, etc.) is respectively communicated with the first water outlet 121 and the second water outlet 620, so that the energy storage tank 900 can also achieve an effect of storing high-pressure water.

In addition, in order to better embody the functions of the reversing valve 100 and the water supply system 1000 according to another aspect of the present invention, the present invention provides another design of the water supply system 1000, namely, the reversing valve 100 in the above embodiment is replaced by the pressure reversing valve 100, and the first three-way valve 650 is replaced by the high temperature stop valve, so that compared with the design, the reversing valve 100 and the water supply system 1000 according to the present invention have at least the following advantages:

1) The pressure interference condition can be greatly improved by changing the pressure switching into the temperature switching through the valve for switching the water path.

2) The pressure reversing valve 100 and the high-temperature stop valve in another design are integrated into the reversing valve 100 in the above embodiment, and the integration simplifies installation.

3) The reversing valve 100 and the water supply system 1000 not only have basic reversing functions, but also solve the problem of slow resetting caused by the characteristics of the temperature control driving assembly, so that a user can start the reversing valve again for use in a short time.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A reversing valve, comprising:

the reversing valve core is movably arranged in the flow channel and is provided with an initial position for opening the first communication hole and closing the second communication hole and a reversing position for closing the first communication hole and opening the second communication hole; and

the temperature control assembly is arranged in the first flow passage and is used for driving the reversing valve core to move from the initial position to the reversing position when the water temperature in the first flow passage is increased;

the temperature control assembly comprises a buffer cylinder and a temperature control valve core arranged in the buffer cylinder, the temperature control valve core is connected with the inner peripheral wall of the buffer cylinder in a sealing manner, one end of the buffer cylinder is provided with a first temperature control through hole, and the other end of the buffer cylinder is provided with a buffer hole communicated with the first flow channel; the third flow channel is also provided with a second temperature control through hole which is correspondingly arranged with the second communication hole, and the first temperature control through hole and the second temperature control through hole are correspondingly arranged and communicated;

2. The reversing valve of claim 1, wherein the thermal control spool is movably mounted within the cushion cylinder, the thermal control spool having a first position disposed away from the reversing spool and a second position disposed adjacent to the reversing spool, the thermal control spool being adapted to move from the first position to the second position when water pressure within the first flow passage increases; the ejector rod is used for extending out when the temperature control valve core is located at the second position, extending into the third flow channel through the first temperature control through hole and the second temperature control through hole and abutting against the reversing valve core to drive the reversing valve core to move from the initial position to the reversing position.

3. The reversing valve according to claim 2, wherein the temperature control valve core comprises a mounting seat and a temperature sensing driving assembly with the ejector rod, the mounting seat is movably mounted in the buffer cylinder, and the mounting seat is connected with the inner peripheral wall of the buffer cylinder in a sealing manner; the temperature sensing driving component also comprises a temperature sensing shell arranged on the mounting seat and a temperature sensing medium which expands when being heated, the ejector rod can be arranged in the temperature sensing shell in a sliding way, and the temperature sensing medium is arranged in the temperature sensing shell and is used for expanding when being heated to enable the ejector rod to extend out and contracting when being cooled to enable the ejector rod to retract.

4. The reversing valve according to claim 3, wherein the mounting seat is annular, and the temperature sensing shell is sealingly mounted inside the mounting seat; and/or the presence of a gas in the atmosphere,

5. The reversing valve according to claim 2, wherein the damping cylinder comprises a cylinder body with an open end and a cover body, the cover body is hermetically mounted at the open end of the cylinder body, the damping hole is formed in the cover body, and the first temperature control through hole is formed in the bottom of the cylinder body; and/or the presence of a gas in the gas,

the other end of the buffer cylinder is provided with a connecting ring protrusion arranged on the periphery of the first temperature control through hole, and the connecting ring protrusion is detachably and hermetically arranged in the second temperature control through hole so as to enable the first temperature control through hole to be communicated with the second temperature control through hole; and/or the presence of a gas in the atmosphere,

the temperature control assembly also comprises a temperature control resetting piece, and the temperature control resetting piece is used for enabling the temperature control valve core to have the tendency of resetting to the first position; and/or the presence of a gas in the atmosphere,

the aperture of the buffer hole is less than or equal to 6 mm.

6. The reversing valve according to any one of claims 1 to 5, wherein the reversing valve body includes a main body portion extending in a moving direction of the reversing valve body, and a seal ring projection projecting laterally from the main body portion, the seal ring projection being provided between the first communication hole and the second communication hole, the seal ring projection opening the first communication hole and closing the second communication hole in the initial position, and closing the first communication hole and opening the second communication hole in the reversing position.

7. The reversing valve according to claim 6, wherein the reversing valve body further comprises a guide portion provided at one end of the body portion, the guide portion extending in a moving direction of the reversing valve body, an inner wall surface of the second communication hole is provided with a plurality of guide protrusions defining a guide slide hole therebetween, the guide portion is slidably provided in the guide slide hole, and the temperature control assembly drives the reversing valve body to move through the guide portion; and/or the presence of a gas in the gas,

8. The reversing valve of any of claims 1-5, further comprising a reversing reset member for causing the reversing valve spool to have a tendency to reset to the initial position.

9. The reversing valve according to any one of claims 1 to 5, wherein the valve body is further provided with a mounting through hole communicated with the first communication through hole, the reversing valve core is slidably and hermetically mounted in the mounting through hole, and one end of the reversing valve core extends out of the mounting through hole and is provided with a handle.

10. The reversing valve according to any one of claims 1 to 5, wherein the valve body comprises a first valve body and a second valve body, the second flow passage is provided in the second valve body, the first flow passage and the third flow passage are provided in the first valve body, the water inlet is provided at one end of the first valve body, and the other end of the first valve body is detachably and hermetically connected with the second valve body.

11. A water supply system, comprising:

a water heater having a hot water outlet;

the reversing valve of any one of claims 1 to 10, a water inlet of the reversing valve being in communication with the hot water outlet;

the first water end is communicated with the second water outlet of the reversing valve; and the number of the first and second groups,

12. The water supply system as claimed in claim 11, wherein the water storage container is an energy storage tank for storing high pressure water, the water supply system further comprising a first one-way valve, a second water end and a pressure reducing device, the first one-way valve being connected between the first water outlet and the water inlet end of the energy storage tank for introducing water into the energy storage tank in one way; the water outlet end of the energy storage tank is communicated with the first water inlet end of the second water inlet end, and the second water inlet end of the second water inlet end is communicated with a water supply pipe through the pressure reducing device; and/or the presence of a gas in the gas,

the water supply system further comprises a water mixing device, the water mixing device is provided with a hot water access port, a cold water access port and a mixed water outlet, the hot water access port is communicated with the hot water outlet, the cold water access port is communicated with a water supply pipe, and the mixed water outlet is communicated with the water inlet.