Antifreeze faucet structure

Abstract

The present invention discloses an antifreeze faucet structure. When the mechanical switch controls the first water outlet channel to be closed, if the water temperature in the second water outlet channel is lower than the set value, the intelligent control unit opens the second water outlet channel so that the water outlet terminal always discharges a small flow of water to prevent the internal residual water from freezing due to low temperature static state; if the water temperature in the second water outlet channel is equal to or higher than the set value, the intelligent control unit closes the second water outlet channel. This antifreeze method has a significant antifreeze effect, the valve core will not be frozen and cracked, and only a small flow of water is discharged at low temperatures. The water flow cost is much smaller than the property loss caused by the freezing and leakage of the valve core. At the same time, when the water temperature rises to a value greater than the set value, the second water outlet channel is automatically closed under the action of the intelligent control unit, and the controllability is strong.

Description

Technical Field

[0001] The invention relates to the field of faucets, and in particular to a faucet structure with an antifreeze effect. Background Art

[0002] Faucets are essential bathroom products in people's lives. There are two main ways to control water flow: manual operation and induction control. In winter, especially in cold areas, the water inside the faucet freezes and expands due to low temperature, causing the valve core to crack and leak, resulting in property losses for users and companies.

[0003] Alternatively, although antifreeze faucets have appeared, these antifreeze faucets mainly use insulation materials to prevent residual water from freezing, and the antifreeze effect of this method is not obvious. Alternatively, as in the Chinese utility model patent application number 201620568226.6, the patent name is a patent for an intelligent antifreeze faucet, the outer side of its shell is wound with a heating coil, the outer side of the heating coil is provided with an insulation layer, a controller is fixedly installed on the top of the shell, and the left end inner cavity of the shell and the left middle part of the controller are provided with temperature sensors. This intelligent antifreeze faucet can generate electricity autonomously and store energy through batteries in daily use by adding a baffle and a micro-generator. At the same time, by adding a combination of a temperature sensor and a displacement sensor, the temperature of the faucet is detected, and the controller is used to heat it autonomously, and the outer wall of the faucet is protected by the insulation layer. At the same time, the water temperature is sensed to avoid scalding. The user's distance is sensed by the displacement sensor, and the solenoid valve is automatically controlled to open, which is convenient for people to use. Although the faucet has an antifreeze function, it has a relatively complex structure, is complex to assemble, and is too costly.

[0004] It is necessary to improve the existing faucets to meet the antifreeze requirements while reducing costs. Summary of the invention

[0005] The present invention provides an antifreeze faucet structure, which overcomes the shortcomings of the background technology. The technical solution adopted by the present invention to solve the technical problem is:

[0006] The antifreeze faucet structure includes a water inlet channel, a first water outlet channel, a second water outlet channel, a mechanical switch, an intelligent control unit and a water outlet terminal, wherein two ends of the first water outlet channel are respectively connected to the water inlet channel and the water outlet terminal, and two ends of the second water outlet channel are respectively connected to the water inlet channel and the water outlet terminal, the mechanical switch controls the opening and closing of the first water outlet channel, and the intelligent control unit controls the opening and closing of the second water outlet channel;

[0007] When the mechanical switch controls the first water outlet channel to be closed:

[0008] If the water temperature in the second water outlet channel is lower than the set value, the intelligent control unit opens the second water outlet channel so that the water outlet terminal always discharges a small amount of water to prevent the residual water inside from freezing due to low temperature static state; if the water temperature in the second water outlet channel is equal to or higher than the set value, the intelligent control unit closes the second water outlet channel.

[0009] In a preferred embodiment: the intelligent control unit includes a temperature sensing device, a control module and a solenoid valve. The temperature sensing device senses the water temperature in the second water outlet channel and transmits the sensing signal to the control module. The control module compares the sensing signal with a set value. When the sensing signal is less than the set value, the solenoid valve is controlled to open and water flows out of the second water outlet channel. When the sensing signal is greater than or equal to the set value, the solenoid valve is controlled to close and no water flows out of the second water outlet channel.

[0010] In a preferred embodiment: the end of the first water outlet channel intersects with the end of the second water outlet channel and is connected to the water outlet terminal through a terminal water outlet pipe, and a one-way valve is provided at the end of the second water outlet channel.

[0011] In a preferred embodiment: the one-way valve includes a one-way valve seat, a one-way valve core, a sealing member and an elastic member. The one-way valve seat is fixedly connected in the second water outlet channel, the sealing member is fixedly connected to the one-way valve core, a sealing port is provided at the end of the second water outlet channel, and the elastic member is sandwiched between the one-way valve core and the one-way valve seat. When water flows out of the second water outlet channel, the one-way valve core moves downward to drive the sealing member to separate from the sealing port. When water does not flow out of the second water outlet channel, the one-way valve core moves upward to drive the sealing member to seal with the sealing port.

[0012] In a preferred embodiment: the solenoid valve is located between the temperature sensing device and the one-way valve.

[0013] In a preferred embodiment: the temperature sensing device is a temperature sensor.

[0014] In a preferred embodiment: the solenoid valve is provided with a manually controllable rotary switch.

[0015] In a preferred embodiment: the water inlet channel includes a cold water inlet channel and a hot water inlet channel, the cold water inlet channel, the hot water inlet channel, the first water outlet channel and the second water outlet channel intersect, and a mixing valve core is provided at the intersection, and the mechanical switch is connected to the mixing valve core.

[0016] In a preferred embodiment, the water outlet terminal is a shower head or a water outlet.

[0017] In a preferred embodiment: the intelligent control unit further includes a power box or a power adapter, the power box or the power adapter is electrically connected to the control module, and the control module is electrically connected to the temperature sensing device and the solenoid valve.

[0018] Compared with the background technology, this technical solution has the following advantages:

[0019] 1. If the water temperature in the second water outlet channel is lower than the set value, the intelligent control unit opens the second water outlet channel so that the water outlet terminal always discharges a small amount of water to prevent the internal residual water from freezing due to low temperature static state; if the water temperature in the second water outlet channel is equal to or higher than the set value, the intelligent control unit closes the second water outlet channel. This antifreeze method has a significant antifreeze effect, the valve core will not be frozen and cracked, and only a small amount of water is discharged at low temperatures. The water flow cost is much smaller than the property loss caused by the freezing and leakage of the valve core; at the same time, the water channel structure is also very simple, which greatly reduces the cost. Moreover, when the water temperature rises to a value greater than the set value, the second water outlet channel is automatically closed under the action of the intelligent control unit, and is highly controllable.

[0020] 2. A one-way valve is provided at the end of the second water outlet channel, and the one-way valve can prevent water from flowing back into the second water outlet channel when water is discharged from the first water outlet channel.

[0021] 3. The temperature sensing device is a temperature sensor, and the temperature sensing is more accurate.

[0022] 4. The solenoid valve is equipped with a manually controllable rotary switch, which can prevent the solenoid valve from being unable to start when the power is off.

[0023] 5. A mixing valve core is provided at the intersection of the cold water inlet channel, the hot water inlet channel, the first water outlet channel and the second water outlet channel. The mechanical switch is connected to the mixing valve core. The water temperature in the two water outlet channels can be controlled at any time through the mechanical switch, which makes the use more comfortable.

[0024] 6. The water outlet terminal may be a pull-out head shower or a common water outlet, and the structure of the water outlet terminal is not limited.

[0025] 7. The power box or power adapter is electrically connected to the control module, and the power box or power adapter can supply power to the control module to ensure the normal operation of the intelligent control unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 The overall schematic diagram of the antifreeze faucet structure of a preferred embodiment is depicted.

[0028] Figure 2 A three-dimensional exploded schematic diagram of an antifreeze faucet structure of a preferred embodiment is depicted.

[0029] Figure 3 A cross-sectional schematic diagram of an intelligent control unit is depicted.

[0030] Figure 4Draws Figure 3 A partial enlarged view of .

[0031] Figure 5 A schematic diagram is shown. DETAILED DESCRIPTION

[0032] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0033] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0034] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, the terms "fixed connection" and "fixed connection" should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0035] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0036] Please refer to Figures 1 to 5 A preferred embodiment of the antifreeze faucet structure, the antifreeze faucet structure, comprises a water inlet channel, a first water outlet channel 10, a second water outlet channel 20, a mechanical switch 30, an intelligent control unit 40 and a water outlet terminal 50. The two ends of the first water outlet channel 10 are respectively connected to the water inlet channel and the water outlet terminal 50, the two ends of the second water outlet channel 20 are respectively connected to the water inlet channel and the water outlet terminal 50, the mechanical switch 30 controls the opening and closing of the first water outlet channel 10, and the intelligent control unit 40 controls the opening and closing of the second water outlet channel 20.

[0037] like Figure 1As shown, the water inlet channel includes a cold water inlet channel 11 and a hot water inlet channel 12. The cold water inlet channel 11, the hot water inlet channel 12, the first water outlet channel 10 and the second water outlet channel 20 intersect, and a water mixing valve core 60 is provided at the intersection. The mechanical switch 30 is connected to the water mixing valve core 60. Figure 2 As shown, the faucet structure also includes a faucet body 13 and a valve seat 14. The valve seat 14 is installed in the faucet body 13 and is provided with two valve seat inlets and two valve seat outlets. The two valve seat inlets are respectively connected to the cold water inlet channel 11 and the hot water inlet channel 12, and the two valve seat outlets are respectively connected to the head ends of the first water outlet channel 10 and the second water outlet channel 20. The mixing valve core 60 can adopt a common mixing valve core structure, which will not be repeated, wherein the two valve seat outlets can be connected to the outlet of the mixing valve core 60 at the same time. The mixing valve core 60 is provided at the intersection of the cold water inlet channel 11, the hot water inlet channel 12, the first water outlet channel 10 and the second water outlet channel 20, and the mechanical switch 30 is connected to the mixing valve core 60, that is, the inlet ends of the first water outlet channel 10 and the second water outlet channel 20 are both connected to the mixing valve core 60. The water temperature in the two water outlet channels can be controlled at any time by the mechanical switch 30, and the use comfort is higher. Alternatively, the faucet may also be provided with only the cold water inlet channel 11 to form a single cold water faucet.

[0038] In this preferred embodiment, if Figure 3 As shown, the end of the first water outlet channel 10 intersects with the end of the second water outlet channel 20 and is connected to the water outlet terminal 50 through the terminal water outlet pipe 70. In this embodiment, the water outlet terminal 50 is an extraction head shower, that is, the terminal water outlet pipe 70 is an extraction pipe. Alternatively, the water outlet terminal 50 can also adopt a fixed water outlet, but is not limited thereto.

[0039] When the mechanical switch 30 controls the first water outlet channel 10 to be closed:

[0040] If the water temperature in the second water outlet channel 20 is lower than the set value, the intelligent control unit 40 opens the second water outlet channel 20 so that the water outlet terminal 50 always discharges a small amount of water to prevent the residual water inside from freezing due to low temperature static state; if the water temperature in the second water outlet channel 20 is equal to or higher than the set value, the intelligent control unit 40 closes the second water outlet channel 20. In this embodiment, the set value is 4°C, and may also be 3°C, 2°C, etc., and may be set according to the actual environment.

[0041] When the mechanical switch 30 controls the first water outlet channel 10 to be opened, the intelligent control unit 40 can control the second water outlet channel 20 to be always in a closed state.

[0042] It can be seen from this that whether water flows out of the first water outlet channel 10 or not will not affect whether water flows out of the second water outlet channel 20 or not, that is, the intelligent control unit 40 is not affected by the water flow of the first water outlet channel 10, and whether water flows out of the second water outlet channel 20 is only determined by the water temperature entering the second water outlet channel 20.

[0043] In this preferred embodiment, the intelligent control unit 40 includes a temperature sensing device 41, a control module 42 and a solenoid valve 43. The temperature sensing device 41 senses the water temperature in the second water outlet channel 20 and transmits the sensing signal to the control module 42. The control module 42 compares the sensing signal with the set value. When the sensing signal is less than the set value, the solenoid valve 43 is controlled to open and the second water outlet channel 20 discharges water. When the sensing signal is greater than or equal to the set value, the solenoid valve 43 is controlled to close and the second water outlet channel 20 does not discharge water. The temperature sensing device 41 is a temperature sensor with high sensing accuracy.

[0044] As for the setting of small flow rate water outlet, the aperture of the second water outlet channel 20 can be designed to be smaller to achieve small flow rate water outlet; or, the cross-sectional area of ​​the second water outlet channel 20 can be smaller by opening the solenoid valve 43 to achieve small flow rate water outlet; or, other forms can be used, not limited to this.

[0045] The solenoid valve 43 is provided with a manually controllable rotary switch 44, which can prevent the solenoid valve 43 from being unable to start when the power is off. For example, when the power is off, the solenoid valve 43 can be opened by manually rotating the rotary switch 44 after manually measuring or judging the water temperature.

[0046] A one-way valve 80 is disposed at the end of the second water outlet channel 20. Figure 3 As shown, the solenoid valve 43 is located between the temperature sensing device 41 and the one-way valve 80 .

[0047] In this preferred embodiment, if Figure 4As shown, the one-way valve 80 includes a one-way valve seat 81, a one-way valve core 82, a sealing member 83 and an elastic member 84. The one-way valve seat 81 is fixedly connected in the second water outlet channel 20, the sealing member 83 is fixedly connected to the one-way valve core 82, a sealing port 21 is provided at the end of the second water outlet channel 20, and the elastic member 84 is sandwiched between the one-way valve core 82 and the one-way valve seat 81. When water flows out of the second water outlet channel 20, the one-way valve core 82 moves downward to drive the sealing member 83 to separate from the sealing port 21. When water does not flow out of the second water outlet channel 20, the one-way valve core 82 moves upward to drive the sealing member 83 to seal with the sealing port 21. That is, when water is flowing out of the first water outlet channel 10, the second water outlet channel 20 is closed, and the resultant force acting on the one-way valve core 82 is upward, so that the seal 83 and the sealing port 21 are always sealed together; when the first water outlet channel 10 is closed and the second water outlet channel 20 is opened, the resultant force acting on the one-way valve core 82 is downward, so that the seal 83 and the sealing port 21 are separated.

[0048] The function of the one-way valve 80 is: when the first water outlet channel 10 is discharging water, the one-way valve 80 can prevent water from flowing back into the second water outlet channel 20. In particular, when the first water outlet channel 10 is discharging mixed hot water, if there is no one-way valve 80, if the first water outlet channel 10 continues to discharge water, the hot water in the first water outlet channel 10 will continue to flow back into the second water outlet channel 20, which will affect the judgment of the temperature sensing device 41 and generate an erroneous instruction. That is, the one-way valve 80 can ensure the accuracy of the detection of the temperature sensing device 41.

[0049] In this preferred embodiment, if Figure 2 As shown, the intelligent control unit 40 also includes a power box 45 or a power adapter, which is electrically connected to the control module 42, and the control module 42 is electrically connected to the temperature sensing device 41 and the solenoid valve 43. The power box 45 or the power adapter can supply power to the control module to ensure the normal operation of the intelligent control unit 40. The power box 45 can adopt a battery structure, such as a dry cell or a lithium battery, which is easy to replace.

[0050] If the water temperature in the second water outlet channel 20 is lower than the set value, the intelligent control unit 40 opens the second water outlet channel so that the water outlet terminal always discharges a small amount of water to prevent the internal residual water from freezing due to low temperature static state; if the water temperature in the second water outlet channel 20 is equal to or higher than the set value, the intelligent control unit 40 closes the second water outlet channel 20. This antifreeze faucet structure has a significant antifreeze effect, the valve core will not be frozen and cracked, and only a small amount of water is discharged at low temperatures. Its water flow cost is much smaller than the property loss caused by the freezing and cracking of the valve core and water leakage. At the same time, when the water temperature rises to a value greater than the set value, the second water outlet channel 20 is automatically closed under the action of the intelligent control unit 40, and the controllability is strong.

[0051] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. Antifreeze faucet structure, characterized by: It includes a water inlet channel, a first water outlet channel, a second water outlet channel, a mechanical switch, an intelligent control unit and a water outlet terminal, wherein the two ends of the first water outlet channel are respectively connected to the water inlet channel and the water outlet terminal, and the two ends of the second water outlet channel are respectively connected to the water inlet channel and the water outlet terminal, the mechanical switch controls the opening and closing of the first water outlet channel, and the intelligent control unit controls the opening and closing of the second water outlet channel; When the mechanical switch controls the first water outlet channel to be closed: If the water temperature in the second water outlet channel is lower than the set value, the intelligent control unit opens the second water outlet channel so that the water outlet terminal always discharges a small amount of water to prevent the residual water inside from freezing due to low temperature static state; if the water temperature in the second water outlet channel is equal to or higher than the set value, the intelligent control unit closes the second water outlet channel.

2. The antifreeze faucet structure according to claim 1, characterized in that: The intelligent control unit includes a temperature sensing device, a control module and a solenoid valve. The temperature sensing device senses the water temperature in the second water outlet channel and transmits the sensing signal to the control module. The control module compares the sensing signal with a set value. When the sensing signal is less than the set value, the solenoid valve is controlled to open and water flows out of the second water outlet channel. When the sensing signal is greater than or equal to the set value, the solenoid valve is controlled to close and no water flows out of the second water outlet channel.

3. The antifreeze faucet structure according to claim 2, characterized in that: The end of the first water outlet channel intersects with the end of the second water outlet channel and is connected to the water outlet terminal through a terminal water outlet pipe, and a one-way valve is provided at the end of the second water outlet channel.

4. The antifreeze faucet structure according to claim 3, characterized in that: The one-way valve includes a one-way valve seat, a one-way valve core, a sealing member and an elastic member. The one-way valve seat is fixedly connected in the second water outlet channel, the sealing member is fixedly connected to the one-way valve core, a sealing port is provided at the end of the second water outlet channel, and the elastic member is sandwiched between the one-way valve core and the one-way valve seat. When water flows out of the second water outlet channel, the one-way valve core moves downward to drive the sealing member to separate from the sealing port. When water does not flow out of the second water outlet channel, the one-way valve core moves upward to drive the sealing member to seal with the sealing port.

5. The antifreeze faucet structure according to claim 3, characterized in that: The solenoid valve is located between the temperature sensing device and the one-way valve.

6. The antifreeze faucet structure according to claim 2, characterized in that: The temperature sensing device is a temperature sensor.

7. The antifreeze faucet structure according to claim 2, characterized in that: The solenoid valve is provided with a manually controllable rotary switch.

8. The antifreeze faucet structure according to claim 2, characterized in that: The water inlet channel includes a cold water inlet channel and a hot water inlet channel. The cold water inlet channel, the hot water inlet channel, the first water outlet channel and the second water outlet channel intersect, and a mixing valve core is arranged at the intersection. The mechanical switch is connected to the mixing valve core.

9. The antifreeze faucet structure according to claim 3, characterized in that: The water outlet terminal is a shower head or a water outlet.

10. The antifreeze faucet structure according to claim 2, characterized in that: The intelligent control unit also includes a power box or a power adapter, which is electrically connected to the control module, and the control module is electrically connected to the temperature sensing device and the solenoid valve.

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