Single cold or hot tap

Abstract

This utility model discloses a single-cold or single-hot water faucet, including an inlet pipe, an outlet pipe, a flow guide valve, and a control switch. The inlet pipe and the flow guide valve are connected, and the control switch controls the flow guide valve. The flow guide valve is used to control the direction of water flow. It also includes a return pipe and a hot water pipe. One end of the return pipe is connected to the flow guide valve, and the other end of the return pipe is used to connect to the inlet of the heater. The outlet pipe of the heater is connected to the hot water pipe, and the hot water pipe is connected to the outlet pipe. The flow guide valve is connected to either the outlet pipe or the return pipe under the control of the control switch. Its advantage is that the user can operate the flow guide valve as needed through the control switch, so that the faucet directly outputs cold water or hot water at a preset temperature without the need for cold and hot water mixing. This solves the problem that traditional water heaters cannot provide hot water at high temperatures and meets the needs of use such as brewing tea and making coffee, which have strict requirements for water temperature.

Description

Technical Field

[0001] This utility model relates to the field of faucets, and in particular to a faucet that can only provide cold water or only provide hot water. Background Technology

[0002] In the current domestic hot water supply sector, water heater-based systems have become the mainstream configuration. These systems typically use electric heating, gas heating, or solar heating to heat the water. Through the layout of hot and cold water pipes, coupled with adjustable faucets, they provide cold, hot, or mixed water. Users can precisely control the water temperature by adjusting the faucet's angle and water flow rate according to their actual needs. This water supply mode effectively meets the personalized water temperature requirements of most users in daily life scenarios such as washing and bathing, offering high versatility and convenience.

[0003] However, as people's living standards improve, the demand for high-temperature hot water in the home is becoming increasingly prominent, especially in scenarios such as brewing tea, making coffee, and cleaning and disinfecting, where hot water above 90 degrees Celsius is often required. Taking tea brewing as an example, different types of tea have strict requirements for water temperature. For example, ripe Pu-erh tea and aged white tea usually require hot water at 95 degrees Celsius or even higher to fully release the aroma and effective components of the tea. Similarly, when sterilizing baby bottles and tableware at high temperatures, hot water above 90 degrees Celsius is also needed to ensure sterilization. However, traditional household water supply systems are limited by the heating capacity and safety design of water heaters, making it difficult to directly provide high-temperature hot water that meets the needs of such scenarios.

[0004] To address this issue, existing technologies typically employ a high-temperature heater, similar to a small water heater, to heat water to over 90 degrees Celsius. However, this solution has significant drawbacks: the faucet controlling the high-temperature heater can only output the heated hot water. When users temporarily need cold water, they must connect additional cold water pipes or replace the water-using equipment, making the process cumbersome and reducing efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a faucet that can quickly switch between single cold or single hot water, thereby improving the ease of use.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a single cold or single hot water faucet, including an inlet pipe, an outlet pipe, a guide valve, and a control switch. The inlet pipe and the guide valve are connected. The control switch controls the guide valve, which is used to control the direction of water flow. The faucet is characterized by further including a return pipe and a hot water pipe. One end of the return pipe is connected to the guide valve, and the other end of the return pipe is used to connect to the inlet end of the heater. The outlet pipe of the heater is connected to the hot water pipe, and the hot water pipe is connected to the outlet pipe. The guide valve is connected to either the outlet pipe or the return pipe under the control of the control switch. When the guide valve is connected to the outlet pipe, cold water is dispensed; when the guide valve is connected to the return pipe, hot water is dispensed.

[0007] A further preliminary option of this utility model is: a water passage is provided between the flow guide valve and the outlet pipe, and the water from the flow guide valve first enters the water passage and then enters the outlet pipe.

[0008] A further preliminary option of this utility model is: a water passage is provided between the hot water pipe and the outlet pipe, and the hot water discharged from the hot water pipe first passes through the water passage and then enters the outlet pipe.

[0009] A further preliminary option of this utility model is: the control switch is equipped with a hot water unlock button.

[0010] A further preliminary option of this utility model is as follows: the control switch includes a housing, a control shaft, and a limiting member; the hot water unlock button is provided with a limiting post and a return spring; when the control switch is not subjected to force, the limiting post and the limiting member abut against each other and cannot be rotated to the direction of opening the hot water; when the control switch is not subjected to force, the limiting post moves down and separates from the limiting member, and can be rotated to the direction of opening the hot water to unlock.

[0011] A further preliminary option of this utility model is: the limiting member is arc-shaped and is set on the peripheral edge of the control switch.

[0012] A further preliminary option of this utility model is: the water inlet pipe is connected to the water purifier.

[0013] A further preliminary option of this utility model is: a heater is provided between the return water pipe and the hot water pipe.

[0014] Traditional household hot water supply relies on water heaters, which have an upper limit to their heating temperature, making it difficult to meet the needs of scenarios requiring high-temperature hot water, such as brewing tea. Furthermore, the mixing of hot and cold water can pose health risks due to water quality issues and bacterial growth. This invention addresses this problem by adding a return water pipe and a hot water pipe, along with a flow diverter valve and a control switch. After the heater precisely heats the water to the preset temperature, it enables an instant hot water output mode. Users can operate the flow diverter valve as needed, allowing the faucet to directly output either cold water or hot water at the preset temperature without the need for mixing. This solves the problem of traditional water heaters not being able to provide high-temperature hot water, meeting the demanding needs of uses such as brewing tea and coffee. It also avoids the health risks associated with mixing hot and cold water, such as water pollution and bacterial growth, providing users with a safer, more convenient, and scenario-specific water experience, significantly improving the practicality and safety of household water appliances. Attached Figure Description

[0015] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0016] Figure 2 The three-dimensional representation of this utility model Figure 2 ;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is an exploded view of the present invention;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0020] Figure 6 This is a line drawing of the present invention. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-6As shown, a single-cold or single-hot water faucet includes an inlet pipe 1, an outlet pipe 2, a flow guide valve 3, and a control switch 4. The inlet pipe 1 and the flow guide valve 3 are connected. The control switch 4 controls the flow guide valve 3, which is used to control the direction of water flow. The faucet is characterized by also including a return pipe 5 and a hot water pipe 6. One end of the return pipe 5 is connected to the flow guide valve 3, and the other end is used to connect to the inlet of a heater 7. The outlet of the heater 7 is connected to the hot water pipe 6, which is connected to the outlet pipe 2. Under the control of the control switch 4, the flow guide valve 3 connects to either the outlet pipe 2 or the return pipe 5. When the flow guide valve 3 is connected to the outlet pipe 2, cold water is dispensed; when the flow guide valve 3 is connected to the return pipe 5, hot water is dispensed. When the user needs cold water, the control switch 4 is operated, which drives the flow guide valve 3 to connect to the outlet pipe 2. At this time, the cold water in the inlet pipe 1 flows directly out through the flow guide valve 3 and the outlet pipe 2. When the user needs hot water, the control switch 4 controls the flow guide valve 3 to connect to the return pipe 5. The cold water flows from the inlet pipe 1 into the flow guide valve 3, then enters the heater 7 through the return pipe 5. The heater 7 heats the cold water to the preset temperature, and the hot water flows into the outlet pipe 2 through the hot water pipe 6 and is output. This claim achieves single cold or single hot water output function by adding a return pipe 5 and a hot water pipe 6, and by using the flow guide valve 3 to connect the outlet pipe 2 or the return pipe 5 under the action of the control switch 4.

[0023] A water passage 8 is provided between the flow guide valve 3 and the outlet pipe 2. Water from the flow guide valve 3 first enters the water passage 8 and then enters the outlet pipe 2. During equipment operation, when the flow guide valve 3 controls the water flow to the outlet pipe 2, the water flow first enters the water passage 8 between the flow guide valve 3 and the outlet pipe 2. The unique design of the water passage 8 can buffer and guide the water flow, making the water flow more stable and avoiding problems such as water flow disturbance and splashing caused by direct impact of water flow on the outlet pipe 2, thereby improving the user experience. Furthermore, the existence of the water passage 8 helps to optimize the water flow path, making the water flow distribution more reasonable and ensuring the stability and reliability of cold or hot water output. The aforementioned water passage 8 is provided between the hot water pipe 6 and the outlet pipe 2. Hot water discharged from the hot water pipe 6 first passes through the water passage 8 before entering the outlet pipe 2. When hot water is discharged from the hot water pipe 6, it first passes through the water passage 8 between the hot water pipe 6 and the outlet pipe 2 before entering the outlet pipe 2.

[0024] A hot water unlock button 9 is provided on the control switch 4. When the device is running, if the user does not press the hot water unlock button 9, the control switch 4 is not under force. At this time, the limiting post 10 on the hot water unlock button 9 and the limiting member 11 on the control switch 4 abut against each other, preventing the control switch 4 from rotating to the hot water opening direction and preventing the user from accidentally turning on the hot water. When the user clearly needs hot water, pressing the hot water unlock button 9 causes the limiting post 10 to move down and separate from the limiting member 11. The user can then rotate the control switch 4 to the hot water opening direction to turn on the hot water supply. This operating mode effectively avoids scalding accidents caused by accidental activation of the hot water. In a home environment, especially in homes with children or the elderly, this design adds an extra layer of safety for hot water use, greatly improving the safety of faucet use and reducing the risk of scalding. The control switch 4 includes a housing 12, a control shaft 13, and a limiting member 11. The hot water unlock button 9 is equipped with a limiting post 10 and a return spring 14. When the control switch 4 is not under force, the limiting post 10 and the limiting member 11 abut against each other, preventing rotation to the hot water opening direction. When the control switch 4 is not under force, the limiting post 10 moves downwards and separates from the limiting member 11, allowing rotation to the hot water opening direction for unlocking. During operation, the housing 12 of the control switch 4 encloses the control shaft 13 and the limiting member 11. When the control switch 4 is not under force, the limiting post 10 and the limiting member 11 on the hot water unlock button 9 abut against each other, restricting the control switch 4 from rotating to the hot water opening direction, preventing accidental activation of the hot water. When the hot water unlock button 9 is pressed, the limiting post 10 overcomes the elastic force of the return spring 14 and moves downwards, separating from the limiting member 11. At this time, the user can rotate the control shaft 13, causing the control switch 4 to rotate to the hot water opening direction for unlocking. This hot water unlocking safety mechanism, which consists of a housing 12, a control shaft 13, a limiting component 11, a limiting post 10, and a return spring 14, ensures the safety of hot water use while making the unlocking operation simple and convenient. It guarantees safety without affecting the convenience of normal hot water use.

[0025] The limiting member 11 is arc-shaped and is located on the peripheral edge of the control switch 4. When the user rotates the control switch 4, the limiting post 10 on the control switch 4 moves along the trajectory of the arc-shaped limiting member 11. Because the limiting member 11 is arc-shaped and located on the peripheral edge of the control switch 4, this design makes the cooperation between the limiting member 11 and the limiting post 10 smoother.

[0026] The inlet pipe 1 connects to the water purifier 15. Water enters through the inlet pipe 1, and since it connects to the water purifier 15, the water flow first passes through the filter element and other purification devices of the water purifier 15. During the purification process, the water purifier 15 removes impurities, bacteria, and harmful substances from the water through physical filtration and adsorption. The purified water then enters the subsequent water circuit system of the faucet. Whether it is cold water or hot water heated by the heater 7, the water quality is guaranteed to be safe, meeting the user's demand for high-quality water. It is especially suitable for scenarios with high water quality requirements, such as making tea and brewing coffee, enhancing the faucet's usability and practicality. A heater 7 is installed between the return pipe 5 and the hot water pipe 6. Cold water flows from the inlet pipe 1 into the flow guide valve 3. When the user needs hot water, the flow guide valve 3 connects to the return pipe 5, and the cold water enters the system between the return pipe 5 and the hot water pipe.

[0027] The present invention provides a detailed description of a single-cold or single-hot water faucet. Specific examples have been used to illustrate the principle and implementation of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the present invention and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A single-cold or single-hot water tap, comprising an inlet pipe, an outlet pipe, a flow guide valve, and a control switch, wherein the inlet pipe and the flow guide valve are connected, the control switch controls the flow guide valve, and the flow guide valve is used to control the direction of water flow, characterized in that... It also includes a return water pipe and a hot water pipe. One end of the return water pipe is connected to the diverter valve, and the other end of the return water pipe is used to connect to the inlet of the heater. The outlet of the heater is connected to the hot water pipe, and the hot water pipe is connected to the outlet pipe. The diverter valve is connected to either the outlet pipe or the return water pipe under the control of the control switch. When the diverter valve is connected to the outlet pipe, cold water is discharged; when the diverter valve is connected to the return water pipe, hot water is discharged.

2. A single-cold or single-hot water tap according to claim 1, characterized in that... A water passage is provided between the flow guide valve and the outlet pipe. The water from the flow guide valve first enters the water passage and then enters the outlet pipe.

3. A single-cold or single-hot water tap according to claim 2, characterized in that... A water passage is provided between the hot water pipe and the outlet pipe, and the hot water discharged from the hot water pipe first passes through the water passage and then enters the outlet pipe.

4. A single-cold or single-hot water tap according to claim 1, characterized in that... The control switch is equipped with a hot water unlock button.

5. A single-cold or single-hot water tap according to claim 4, characterized in that... The control switch includes a housing, a control shaft, and a limiting component. The hot water unlock button is equipped with a limiting post and a return spring. When the control switch is not subjected to force, the limiting post and the limiting component abut against each other and cannot be rotated to the direction of opening the hot water. When the control switch is not subjected to force, the limiting post moves down and separates from the limiting component, allowing it to be rotated to the direction of opening the hot water to unlock.

6. A single-cold or single-hot water tap according to claim 5, characterized in that... The limiting element is arc-shaped and is located on the peripheral edge of the control switch.

7. A single-cold or single-hot water tap according to claim 1, characterized in that... The inlet pipe is connected to the water purifier.

8. A single-cold or single-hot water tap according to claim 1, characterized in that... A heater is installed between the return water pipe and the hot water pipe.

Images