Zero-cold-water accurate temperature control faucet

Abstract

The utility model discloses a zero cold water accurate temperature control faucet which comprises a faucet shell and a water outlet arranged on the faucet shell, a water outlet pipe communicated with the water outlet is arranged in the faucet shell, and the other end of the water outlet pipe is communicated with a water purifier water tank. An instant heating module is arranged on the water outlet pipe; a temperature detection element is arranged on the water outlet pipe between the instant heating module and the water outlet; a first valve is arranged on the water outlet pipe between the temperature detection element and the water outlet; a water return pipe is connected to the water outlet pipe between the temperature detection element and the water outlet, the other end of the water return pipe is connected with a water purifier water tank, and a second valve is arranged on the water return pipe. According to the faucet provided by the utility model, after a user takes hot water, the hot water in the water outlet pipe flows back to the water tank and is replaced by normal-temperature water, so that the user is prevented from being scalded; and the situation that the temperature cannot reach the expectation when hot water is taken next time due to cooling of the hot water accumulated in the faucet is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to instant heating faucet technical field, concretely relates to a kind of zero cold water precision temperature control faucet. BACKGROUND

[0002] In the existing drinking water heating technical field, although various heating equipment has been widely applied in family and office, aiming at providing convenient, safe hot water service, there is still a technical problem to be solved. Specifically, in the field of instant heating faucet, when the user finishes taking hot water, a certain amount of hot water is retained in the internal pipeline of the faucet, and when the temperature of hot water is high, the user is easy to be scalded. When the user does not use for a certain period of time, with the passage of time, the retained hot water gradually cools down due to lack of continuous heating, resulting in accumulation of low-temperature water in the pipeline. When the user starts the instant heating faucet again to immediately obtain hot water of the preset temperature, the first to flow out is often this part of cooled water, rather than hot water immediately reaching the user's set temperature. This phenomenon not only prolongs the user's waiting time for hot water, but also directly affects the immediate drinking experience of the first cup of hot water, reducing the overall use satisfaction. SUMMARY

[0003] The utility model provides a kind of zero cold water precision temperature control faucet to solve the following problems in prior art scheme:

[0004] (1) instant heating faucet finishes taking hot water, a certain amount of hot water is retained in the internal pipeline of the faucet, and when the temperature of hot water is high, the user is easy to be scalded.

[0005] (2) instant heating faucet is not used for a period of time, and low-temperature water is accumulated in the internal pipeline of the faucet. When the user needs to take hot water next time, the first cup of water does not reach the expected temperature.

[0006] To solve the above problems, the utility model provides the following scheme:

[0007] A kind of zero cold water precision temperature control faucet, including faucet shell and the water outlet that is set on faucet shell, the water outlet is communicated in the water outlet pipe that is set in faucet shell, the other end of the water outlet pipe is communicated water tank of purifier;Instant heating module is set on the water outlet pipe between instant heating module and the water outlet;Temperature detection element is set on the water outlet pipe between temperature detection element and the water outlet;First valve is set on the water outlet pipe between temperature detection element and the water outlet;Water return pipe is connected on the water outlet pipe between temperature detection element and the water outlet, the other end of the water return pipe is connected water tank of purifier, and second valve is set on the water return pipe.

[0008] Preferably, the water outlet pipe between the first valve and the water outlet is parallel to the horizontal direction or downwardly inclined.

[0009] Preferably, the first valve and the second valve are replaced by a three-way valve, an inlet of the three-way valve is communicated with the water purifier water tank, one outlet of the three-way valve is communicated with the water outlet, and the other outlet of the three-way valve is communicated with the backwater pipe.

[0010] Preferably, the water purifier water tank comprises a normal-temperature water tank and a hot water tank, and the water outlet pipe is respectively communicated with the normal-temperature water tank and the hot water tank, and the backwater pipe is respectively communicated with the normal-temperature water tank and the hot water tank.

[0011] Preferably, the backwater pipe and the water outlet pipe are arranged side by side in the faucet shell.

[0012] Preferably, an air outlet is arranged on the faucet shell, an air outlet pipe is arranged in the faucet shell and communicated with the air outlet, and the other end of the air outlet pipe is communicated with the water purifier water tank.

[0013] Preferably, the air outlet pipe and the water outlet pipe are arranged side by side in the faucet shell.

[0014] The utility model has the following beneficial effects:

[0015] (1) After the user uses the hot water, the hot water in the water outlet pipe between the first valve and the water outlet is emptied under the action of gravity, so that the residual hot water can be prevented from cooling down in a certain period of time, and the situation that the temperature of the first cup of water does not meet the standard when the hot water is used next time is avoided, and the effect of zero cold water is achieved.

[0016] (2) The instant heating module and the temperature detection element are arranged on the water outlet pipe, so that the temperature of the water in the water outlet pipe is monitored in real time, and only when the temperature of the water in the water outlet pipe reaches the set temperature, the water can flow out from the water outlet, and the effect of precise temperature control is achieved.

[0017] (3) The backwater pipe is connected to the water outlet pipe, so that the residual hot water in the water outlet pipe is returned to the water purifier water tank, and is replaced by normal-temperature water, so that the user is prevented from being scalded by the residual water with too high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without any creative effort on the premise of not paying any creative effort. In addition, the same components are marked with the same reference numerals in the drawings, and the drawings are not drawn according to the actual proportion.

[0019] Figure 1 It is a waterway structure diagram of one of the embodiments of the utility model;

[0020] Figure 2The waterway structure diagram of another embodiment of the utility model.

[0021] Explanation of reference numerals

[0022] 10 - faucet shell;

[0023] 20 - water outlet pipe; 21 - water outlet; 22 - instant heating module; 23 - temperature detection element;

[0024] 30 - backwater pipe;

[0025] 40 - exhaust pipe; 41 - exhaust port;

[0026] 50 - three-way valve; 51 - first valve; 52 - second valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment below. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. DETAILED DESCRIPTION

[0030] As Figure 1 shown, Figure 1 A zero-cold-water precise temperature control faucet is provided, which comprises a faucet shell 10 and a water outlet 21 arranged on the faucet shell 10. A water outlet pipe 20 is arranged in the faucet shell 10 and communicates with the water outlet 21. The other end of the water outlet pipe 20 communicates with a water tank of a water purifier. An instant heating module 22 is arranged on the water outlet pipe 20. A temperature detection element 23 is arranged on the water outlet pipe 20 between the instant heating module 22 and the water outlet 21. A first valve 51 is arranged on the water outlet pipe 20 between the temperature detection element 23 and the water outlet 21. A backwater pipe 30 is connected to the water outlet pipe 20 between the temperature detection element 23 and the water outlet 21. The other end of the backwater pipe 30 is connected to the water tank of the water purifier. A second valve 52 is arranged on the backwater pipe 30.

[0031] Specifically, when the user needs normal temperature water, the faucet is opened, and the controller in the faucet controls the first valve 51 to open. The water in the water tank of the water purifier flows out from the water outlet 21 along the water outlet pipe 20 for the user to take.

[0032] When a user needs hot water at a set temperature, they turn on the faucet to activate the precise temperature control mode. The controller inside the faucet controls the instant heating module 22 to work, heating the water flowing through the instant heating module 22. At the same time, the temperature detection element 23 detects the temperature of the heated water. When the water temperature reaches the set temperature and stabilizes, the controller controls the first valve 51 to open, and hot water flows out from the outlet 21.

[0033] When the user finishes using the hot water, they turn off the tap. The controller then stops the instant heating module 22 from working, and the first valve 51 closes. At this time, the hot water in the outlet pipe 20 between the first valve 51 and the outlet 21 is drained by gravity. The second valve 52 opens, and the hot water in the outlet pipe 20 flows back to the water purifier tank along the return pipe 30. At this time, the hot water in the outlet pipe 20 is replaced with room temperature water, and the second valve 52 closes.

[0034] The beneficial effects of this embodiment are:

[0035] Firstly, after the user has used up the hot water, the hot water in the outlet pipe 20 between the first valve 51 and the outlet 21 is drained by gravity, which can prevent the residual hot water from cooling down within a certain period of time, thus avoiding the situation where the temperature of the first cup of hot water is not up to standard when using hot water next time, achieving the effect of zero cold water.

[0036] Secondly, an instant heating module 22 and a temperature detection element 23 are installed on the water outlet pipe 20 to monitor the water temperature in the water outlet pipe 20 in real time. Only when the water temperature in the water outlet pipe 20 reaches the set temperature can the water flow out from the water outlet 21, thus achieving the effect of precise temperature control.

[0037] Thirdly, a return water pipe 30 is connected to the outlet pipe 20 to return the residual hot water in the outlet pipe 20 to the water purifier tank and replace it with room temperature water to prevent the residual water from being too hot and scalding the user.

[0038] In a preferred embodiment, the outlet pipe 20 between the first valve 51 and the outlet 21 is parallel to the horizontal direction or inclined downwards. This embodiment is to ensure that the water in the outlet pipe 20 between the first valve 51 and the outlet 21 is completely drained under the action of gravity.

[0039] In another embodiment, such as Figure 2 As shown, the first valve 51 and the second valve 52 are replaced by a three-way valve 50. The inlet of the three-way valve 50 is connected to the water tank of the water purifier, one of the outlets of the three-way valve 50 is connected to the water outlet 21, and the other outlet of the three-way valve 50 is connected to the return water pipe 30.

[0040] Specifically, the path switching of the three-way valve 50 is controlled by the controller to achieve the attached... Figure 1 The technical effects described in the embodiments. Compared with the appendix.Figure 1 The two valve control schemes in the embodiment have the advantages of lower cost and convenient installation.

[0041] In a preferred embodiment, the water tank of the water purifier comprises a normal temperature water tank and a hot water tank, and the outlet pipe 20 is connected to the normal temperature water tank and the hot water tank respectively, and the return pipe 30 is connected to the normal temperature water tank and the hot water tank respectively.

[0042] Specifically, when the user needs normal temperature water, the faucet is opened, and the controller controls the first valve 51 to open, and the water in the normal temperature water tank flows out from the outlet 21 along the outlet pipe 20 for the user to take.

[0043] When the user needs hot water with a lower temperature, the faucet is opened to start the precise temperature control mode, and the water in the normal temperature water tank is drawn out, and the controller in the faucet controls the instant heating module 22 to work to heat the water flowing through the instant heating module 22, and the temperature detection element 23 detects the temperature of the heated water, and when the water temperature reaches the set temperature and is stable, the controller controls the first valve 51 to open, and the hot water flows out from the outlet 21. When the user has finished taking the hot water, the faucet is closed, the controller controls the instant heating module 22 to stop working, and the first valve 51 is closed, at this time, the hot water in the outlet pipe 20 between the first valve 51 and the outlet 21 is emptied under the action of gravity; the second valve 52 is opened, the water in the normal temperature water tank is drawn out, and the hot water in the outlet pipe 20 is returned to the hot water tank along the return pipe 30, at this time, the water in the outlet pipe 20 is replaced by normal temperature water, and the second valve 52 is closed.

[0044] When the user needs hot water with a higher temperature, the faucet is opened to start the precise temperature control mode, and the water in the hot water tank is drawn out, and the controller in the faucet controls the instant heating module 22 to work to heat the water flowing through the instant heating module 22, and the temperature detection element 23 detects the temperature of the heated water, and when the water temperature reaches the set temperature and is stable, the controller controls the first valve 51 to open, and the hot water flows out from the outlet 21. When the user has finished taking the hot water, the faucet is closed, the controller controls the instant heating module 22 to stop working, and the first valve 51 is closed, at this time, the hot water in the outlet pipe 20 between the first valve 51 and the outlet 21 is emptied under the action of gravity; the second valve 52 is opened, the water in the normal temperature water tank is drawn out, and the hot water in the outlet pipe 20 is returned to the hot water tank along the return pipe 30, at this time, the water in the outlet pipe 20 is replaced by normal temperature water, and the second valve 52 is closed.

[0045] In this embodiment, the water tank of the water purifier comprises two independent water tanks, i.e., the normal temperature water tank and the hot water tank, and after the user has finished taking the hot water, the hot water in the outlet pipe 20 is returned to the hot water tank, thereby reducing energy consumption.

[0046] In a preferred embodiment, the return pipe 30 and the outlet pipe 20 are arranged side by side in the faucet housing 10 to facilitate installation.

[0047] In a preferred embodiment, the faucet housing 10 is provided with an air outlet 41, and the faucet housing 10 is provided with an air exhaust pipe 40 communicating with the air outlet 41, and the other end of the air exhaust pipe 40 communicates with the water tank of the water purifier to ensure the pressure balance in the water tank of the water purifier. Further, when the water tank of the water purifier is divided into a normal temperature water tank and a hot water tank, the air exhaust pipe 40 respectively communicates with the normal temperature water tank and the hot water tank.

[0048] In a preferred embodiment, the air exhaust pipe 40 and the water outlet pipe 20 are arranged side by side in the faucet housing 10. When the pressure in the water tank of the water purifier is too high, causing the water in the water tank to overflow along the air exhaust pipe 40, the overflowed water can be guided into the kitchen surface through the air outlet 41, and then discharged into the sink of the kitchen surface, which not only avoids the problem of water soaking the cabinet, but also makes it easy for the user to discover the overflow of the water tank, so as to maintain and repair in time.

[0049] The above is only a specific embodiment of the present application, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A zero-cold-water precision temperature control faucet, characterized in that, The device includes a faucet housing (10) and a water outlet (21) disposed on the faucet housing (10). A water outlet pipe (20) is disposed inside the faucet housing (10) and communicates with the water outlet (21). The other end of the water outlet pipe (20) is communicated with the water tank of a water purifier. An instant heating module (22) is disposed on the water outlet pipe (20). A temperature detection element (23) is disposed on the water outlet pipe (20) between the instant heating module (22) and the water outlet (21). A first valve (51) is disposed on the water outlet pipe (20) between the temperature detection element (23) and the water outlet (21). A return water pipe (30) is connected to the water outlet pipe (20) between the temperature detection element (23) and the water outlet (21). The other end of the return water pipe (30) is connected to the water tank of a water purifier. A second valve (52) is disposed on the return water pipe (30).

2. The faucet according to claim 1, characterized in that, The outlet pipe (20) between the first valve (51) and the outlet (21) is parallel to the horizontal direction or inclined downward.

3. The faucet according to claim 2, characterized in that, The first valve (51) and the second valve (52) are replaced by a three-way valve (50), the inlet of which is connected to the water tank of the water purifier, one outlet of which is connected to the water outlet (21), and the other outlet of which is connected to the return water pipe (30).

4. The faucet according to claim 3, characterized in that, The water purifier tank includes a normal temperature water tank and a hot water tank. The outlet pipe (20) is connected to the normal temperature water tank and the hot water tank respectively. The return pipe (30) is connected to the normal temperature water tank and the hot water tank respectively.

5. The faucet according to claim 1 or 2, characterized in that, The return water pipe (30) and the outlet water pipe (20) are arranged side by side inside the faucet housing (10).

6. The faucet according to claim 1 or 2, characterized in that, An exhaust port (41) is provided on the faucet housing (10), and an exhaust pipe (40) connected to the exhaust port (41) is provided inside the faucet housing (10). The other end of the exhaust pipe (40) is connected to the water tank of the water purifier.

7. The faucet according to claim 6, characterized in that, The exhaust pipe (40) and the water outlet pipe (20) are arranged side by side inside the faucet housing (10).

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