Drinking water device

Abstract

The application provides a water drinking device, which comprises a first water pumping device, a filtering device, a water boiler, a water outlet nozzle, and a first water outlet pipeline and a second water outlet pipeline arranged in parallel, the filtering device is provided with a raw water inlet and a purified water outlet, the raw water inlet is connected with a water outlet of the first water pumping device, a first end of the first water outlet pipeline and a first end of the second water outlet pipeline are both connected with the purified water outlet, a second end of the first water outlet pipeline is connected with the water outlet nozzle, and a second end of the second water outlet pipeline is connected with the water boiler; a first switch valve is arranged on the first water outlet pipeline, the water drinking device further comprises a backflow pipeline connected with a water inlet of the first switch valve and a water inlet of the first water pumping device, a first one-way valve is arranged on the backflow pipeline, and the first one-way valve can allow water in front of the water inlet of the first switch valve to backflow to the front of the water inlet of the first water pumping device. Two water drinking outlet pipelines enrich the functions of the water drinking device. The design of a pure water tank is also realized, and the problem of stale water is avoided.

Description

Technical Field

[0001] This utility model relates to the field of drinking water equipment technology. Background Technology

[0002] Water purifiers are gaining popularity among consumers because they can process ordinary tap water (raw water) through a series of filtration processes to produce pure water that can be drunk directly, thus conveniently improving the quality of daily drinking water.

[0003] However, existing water purifiers generally require a dedicated water pitcher to store the filtered water, which increases the size of the purifier. Furthermore, the purified water in the pitcher is in direct contact with air, making it susceptible to contamination, bacterial growth, and algae formation, requiring frequent cleaning. Additionally, existing water purifiers only dispense cold and hot water, offering limited functionality and lacking features such as tea brewing or stewing. Utility Model Content

[0004] This application aims to at least solve the problems existing in the above-mentioned prior art or related technologies, such as the large volume of the pure water tank of the water purifier, the difficulty in cleaning it, and the inability of the water purifier to brew tea or stew.

[0005] The first aspect of this utility model provides a drinking water device, which includes a first pumping device, a filtering device, a kettle, a water outlet, and a first and a second water outlet pipe connected in parallel. The filtering device has a raw water inlet and a purified water outlet. The raw water inlet is connected to the outlet of the first pumping device. The first end of the first water outlet pipe and the first end of the second water outlet pipe are both connected to the purified water outlet. The second end of the first water outlet pipe is connected to the water outlet pipe, and the second end of the second water outlet pipe is connected to the kettle. A first switching valve is provided on the first water outlet pipe, which can be closed to cut off the water flow in the first water outlet pipe. The drinking water device also includes a return pipe connecting the inlet of the first switching valve and the inlet of the first pumping device. A first one-way valve is provided on the return pipe, which allows water in front of the inlet of the first switching valve to flow back to the inlet of the first pumping device.

[0006] The drinking water device proposed in this embodiment includes a first pumping device and a filtration device. The first pumping device provides pumping power for the water entering the filtration device. The purified water outlet of the first pumping device is connected to a first outlet pipe and a second outlet pipe arranged in parallel, so that the filtered pure water enters the first outlet pipe and the second outlet pipe for users to drink. The first outlet pipe is connected to a water spout, through which users collect water for drinking. A kettle is installed on the second outlet pipe, which can realize multiple functions such as boiling water, brewing tea, and stewing, enriching the functions of the drinking water device. Furthermore, the drinking water device also includes a return pipe. A first switch valve is installed on the first outlet pipe. The opening and closing of the first switch valve can control the water flow in the first outlet pipe. Closing the first switch valve can cut off the water flow in the first outlet pipe, so that the excess water in the first outlet pipe can return through the return pipe. One end of the return pipeline is connected to the inlet of the first switch valve, and the other end of the return pipeline is connected to the inlet of the first pumping device. A first check valve is installed on the return pipeline. Opening the first check valve allows excess pure water in the first outlet pipeline to flow back from the inlet of the first switch valve to the inlet of the first pumping device. When water is drawn again, it passes through the filtration device again, which solves the problem that the cleanliness of the stagnant water is difficult to guarantee when drawing water again. This achieves a pure water tank-free design, avoids the growth of bacteria in the pure water tank, and also avoids the problem of stagnant water.

[0007] In some embodiments, the drinking water device may optionally include a second switch valve and a third switch valve, wherein the second switch valve is disposed between the first end of the first outlet pipe and the connection point of the return pipe and the first outlet pipe, and the third switch valve is disposed on the second outlet pipe.

[0008] In these embodiments, a second switching valve is provided on the first water outlet pipe and a third switching valve is provided on the second water outlet pipe, which can be used to control the opening and closing of the water outlet pipes, realize independent control of the opening and closing of the first and second water outlet pipes, and improve the controllability of the first and second water outlet pipes. Specifically, it can make the first and second water outlet pipes both keep closed, both keep open, and the first water outlet pipe open and the second water outlet pipe closed, or the second water outlet pipe open and the first water outlet pipe closed, etc.

[0009] In some embodiments, the drinking water device may optionally include a second check valve disposed between the third switch valve and the kettle to prevent water in the kettle from flowing back into the filter device. The second check valve can prevent water in the kettle from flowing back into the third switch valve and the filter device, thus avoiding affecting the safety and lifespan of the third switch valve and the filter device.

[0010] In some embodiments, the filtration device may optionally include a concentrate outlet, and the drinking water device may also include a concentrate pipeline connected to the concentrate outlet and a fourth switching valve disposed on the concentrate pipeline; the drinking water device may also include a controller for controlling the operation of the second switching valve, the third switching valve and the fourth switching valve, the controller being able to control the second switching valve and the third switching valve to close and the fourth switching valve to open, so as to perform a flushing mode on the filtration device, and the controller being able to control at least one of the second switching valve and the third switching valve to open and control the fourth switching valve to close, so as to perform a pure water production mode.

[0011] In these embodiments, the filter device can be flushed by the cooperation of the first pumping device, the concentrated water pipeline, and the fourth switching valve. This flushes away organic matter and colloids adhering to the surface of the filter device, reduces the breeding ground for microorganisms, and improves the cleanliness of the filter device. Regular or automatic flushing solves the problem of performance degradation caused by impurities trapped in the filter device, extends the service life of the filter device, and ensures water quality safety. Specifically, during the flushing process, the second and third switching valves are closed to prevent water from flowing into the first and second outlet pipelines. The first pumping device operates, drawing tap water or other water sources into the filter device to flush it.

[0012] In some embodiments, the fourth switching valve is optionally provided with a first water passage hole and a second water passage hole, the diameter of the first water passage hole being larger than the diameter of the second water passage hole. The first water passage hole is used to open during the execution of the flushing mode to discharge flushing water, and the second water passage hole is used to discharge concentrated water during the execution of the pure water production mode.

[0013] In these embodiments, the first water passage on the fourth switching valve can switch between open and closed states. During the flushing mode, the first water passage of the fourth switching valve opens, and water flushing the filter device enters the concentrate pipeline through the first water passage. After the flushing mode ends, the first water passage can close. During the pure water production mode, pure water is discharged from the purified water outlet of the filter device, while the concentrated water containing impurities after filtration enters the concentrate pipeline through the second water passage. Changing the size of the second water passage can control the concentrated water discharge flow rate and pressure, achieving efficient filtration of the filter device. It also balances water conservation and performance while ensuring filtration effect.

[0014] In some embodiments, the drinking water device may optionally include a raw water tank connected to the inlet of the first pumping device, and the raw water tank may also be connected to a concentrated water outlet via a concentrated water pipeline.

[0015] In these embodiments, by further configuring a raw water tank connected to the inlet of the first pumping device, an independent water source can be provided for the drinking water equipment, eliminating the need to directly connect the drinking water equipment to the tap water pipe, thus improving the flexibility of the drinking water equipment setup. Simultaneously, the raw water tank is also connected to a concentrated water pipeline, constructing a closed loop consisting of the raw water tank, the first pumping device, the filtration device, and the concentrated water pipeline. This allows concentrated water or unfiltered flushing water flowing from the fourth switch valve to flow back to the raw water tank. When the remaining residual water in the raw water tank is no longer usable, the residual water can be drained before new raw water is injected, thus achieving concentrated water drainage and new water injection in one go, improving the convenience of user operation.

[0016] In some embodiments, the drinking water device may optionally include a flow meter disposed on the first outlet pipe and located between the connection point of the return pipe and the first outlet pipe and the first switch valve.

[0017] In these embodiments, by setting a flow meter, the forward and reverse water flow rates in the first outlet pipeline between the connection point of the return pipeline and the first outlet pipeline and the first switch valve can be monitored in real time. The flow data is fed back to the controller, which then links the second pumping device, the first switch valve, the second switch valve and other components to realize the automatic adjustment of the flow rate in the first outlet pipeline. This allows for more precise control of the water flow at the outlet, enabling on-demand water supply.

[0018] In some embodiments, the first switching valve may optionally be a negative pressure valve. Setting the first switching valve as a negative pressure valve allows for more precise control of water flow, thus ensuring a more accurate flow rate at the outlet. Specifically, the negative pressure valve achieves flow control through a constant negative pressure difference mechanism. Utilizing the negative pressure generated when fluid flows through the valve port (Bernoulli effect), combined with the elastic feedback of the spring and diaphragm, it automatically compensates for upstream and downstream pressure fluctuations, maintaining stable flow. When system pressure changes abruptly (such as water hammer, pump start-up or shutdown), the diaphragm and spring respond quickly, adjusting the valve opening within milliseconds to suppress flow fluctuations, resulting in more precise flow control.

[0019] Furthermore, a second pumping device is connected to the outlet end of the negative pressure valve. When the second pumping device is working, it draws air out of the negative pressure valve, reducing the pressure inside the valve. The external atmospheric pressure then pushes in, causing the diaphragm to move and opening the channel inside the negative pressure valve, allowing water to flow out through the channel.

[0020] In some embodiments, the drinking water device may optionally include: a second pumping device disposed on the first water outlet pipe and located between the first switch valve and the water outlet; and an instant heating component disposed on the first water outlet pipe and located between the second pumping device and the water outlet.

[0021] In these embodiments, the second pumping device further increases the flow pressure of the water in the first outlet pipe. The filtered water flows through the first outlet pipe via the combined action of the first switching valve and the second pumping device, and finally flows to the spout. The introduction of the second pumping device can improve the water output efficiency and stability of the drinking water equipment, especially in cases of low water pressure or long pipes, thus better ensuring the normal operation of the drinking water equipment. Furthermore, the instant heating component can quickly heat the flowing pure water, improving heating efficiency. When the drinking water equipment is working, the second pumping device pushes water to the instant heating component, which heats the water to the set temperature. The heated hot water then flows through the first water supply to the spout.

[0022] In some embodiments, the drinking water device may optionally include: a main unit, a mounting platform at the bottom of the main unit, a kettle detachably mounted on the mounting platform, a water passage at the bottom of the kettle, and a valve capable of controlling the opening and closing of the water passage, and a second end of a second water outlet pipe inserted into the water passage to inject water into the kettle.

[0023] In these embodiments, a water passage is provided at the bottom of the kettle, and a second water outlet pipe is inserted into the water passage at the bottom of the kettle to allow water to be poured into the kettle from the bottom. This allows the second water outlet pipe to be hidden in the mounting platform, making the drinking water equipment look simpler.

[0024] Other aspects and / or advantages of the present invention will be set forth in part in the description which follows, and in part will be clear from the description or may be learned by practice of the present invention. Attached Figure Description

[0025] The above and other objects and features of this utility model will become clearer from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0026] Figure 1 A schematic diagram of the connection relationship of a drinking water device according to an embodiment of this application is shown;

[0027] Figure 2 A schematic diagram of the structure of a drinking water device according to an embodiment of this application is shown.

[0028] Explanation of icon numbers:

[0029] 10. First pumping unit,

[0030] 20 filtration unit, 210 raw water inlet, 220 purified water outlet, 230 concentrated water outlet.

[0031] 30 First water outlet pipe, 310 Second switch valve, 320 First switch valve, 330 Water outlet nozzle, 340 Flow meter, 350 Second pumping device, 360 Instant heating component.

[0032] 40 Second water outlet pipe, 410 Third switch valve, 420 Second check valve, 430 Kettle.

[0033] 50 Return line, 510 First check valve,

[0034] 60 Concentrate pipeline, 610 Fourth switch valve,

[0035] 70 raw water tank,

[0036] 80 main unit, 810 installation platform. Detailed Implementation

[0037] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but may be changed as will become clear upon understanding this disclosure, except for operations that must occur in a specific order. Furthermore, for clarity and conciseness, descriptions of features known in the art may be omitted.

[0038] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein, which will become clear upon understanding the disclosure of this application.

[0039] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more.

[0040] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts should not be limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Thus, without departing from the teaching of the examples described herein, the first component, first assembly, first region, first layer, or first part referred to as the first component, first assembly, first region, first layer, or first part may also be referred to as the second component, second assembly, second region, second layer, or second part.

[0041] In the specification, when an element such as a layer, region, or substrate is described as being "on" another element, "connected to," or "bonded to" another element, the element may be directly "on" another element, directly "connected to," or "bonded to" the other element, or one or more other elements may be present in between. Conversely, when an element is described as being "directly on" another element, "directly connected to," or "directly bonded to" another element, no other elements may be present in between.

[0042] The terminology used herein is for the purpose of describing various examples only and is not intended to limit disclosure. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the described features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. The term “a plurality” represents any quantity of two or more.

[0043] The directional terms "upper," "lower," "top," and "bottom" used in this application are all based on the orientation of the product when it is placed upright in normal use.

[0044] Unless otherwise defined, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains after understanding the invention. Unless expressly defined herein, terms such as those defined in a general dictionary shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field and in this invention, and shall not be interpreted in an idealized or overly formalistic manner.

[0045] Furthermore, in the description of the examples, detailed descriptions of well-known related structures or functions will be omitted when it is believed that such detailed descriptions would lead to a vague interpretation of the present invention.

[0046] The following will combine Figure 1 and Figure 2 This application describes drinking water devices according to some embodiments.

[0047] like Figure 1 and Figure 2As shown, the first aspect of this utility model provides a drinking water device, which includes a first pumping device 10, a filtering device 20, a kettle 430, a water outlet 330, and a first water outlet pipe 30 and a second water outlet pipe 40 arranged in parallel. The filtering device 20 has a raw water inlet 210 and a purified water outlet 220. The raw water inlet 210 is connected to the outlet of the first pumping device 10. The first end of the first water outlet pipe 30 and the first end of the second water outlet pipe 40 are both connected to the purified water outlet 220. The second end of the first water outlet pipe 30 is connected to... The water outlet 330 is connected to the second end of the second water outlet pipe 40, which is connected to the kettle 430. A first switch valve 320 is provided on the first water outlet pipe 30. The first switch valve 320 can be closed to cut off the water flow in the first water outlet pipe 30. The drinking water equipment also includes a return pipe 50 that connects the inlet of the first switch valve 320 and the inlet of the first pumping device 10. A first check valve 510 is provided on the return pipe 50. The first check valve 510 can allow water in front of the inlet of the first switch valve 320 to flow back to the inlet of the first pumping device 10.

[0048] The drinking water device proposed in this embodiment includes a first pumping device 10 and a filtration device 20. The first pumping device 10 can provide pumping power for the water entering the filtration device 20. The purified water outlet 220 of the first pumping device 10 is connected to a first water outlet pipe 30 and a second water outlet pipe 40 arranged in parallel, so that the filtered pure water enters the first water outlet pipe 30 and the second water outlet pipe 40 for users to drink. The first water outlet pipe 30 is connected to a water outlet 330, through which users can collect water for drinking. A kettle 430 is provided on the second water outlet pipe 40, which can realize multiple functions such as boiling water, brewing tea, and stewing, enriching the functions of the drinking water device. Furthermore, the drinking water system also includes a return pipe 50. A first switch valve 320 is provided on the first outlet pipe 30. The flow rate of water in the first outlet pipe 30 can be controlled by opening and closing the first switch valve 320. Closing the first switch valve 320 can cut off the water flow in the first outlet pipe 30, so that excess water in the first outlet pipe 30 can return through the return pipe 50. One end of the return pipe 50 is connected to the inlet of the first switch valve 320, and the other end of the return pipe 50 is connected to the inlet of the first pumping device 10. A first one-way valve 510 is provided on the return pipe 50. Opening the first one-way valve 510 allows excess pure water in the first outlet pipe 30 to flow back from the front side of the inlet of the first switch valve 320 to the front side of the inlet of the first pumping device 10. When water is taken again, it passes through the filter device 20 again, which solves the problem that the cleanliness of the stagnant water is difficult to guarantee when water is taken again. This achieves a pure water tank-free design, avoids the growth of bacteria in the pure water tank, and also avoids the problem of stagnant water.

[0049] The drinking water device proposed in this embodiment eliminates the traditional pure water tank, reducing the size of the drinking water device and making the entire device more compact. It also solves the problem that pure water tanks in related technologies are prone to the growth of bacteria, algae and contaminants, which may lead to secondary pollution. The design of eliminating the pure water tank avoids the situation where pure water remains in the pure water tank, effectively reducing the growth and spread of bacteria and other contaminants, and improving the cleanliness of the pure water.

[0050] It is worth noting that a first check valve 510 is installed on the return line 50. A check valve, also known as a non-return valve or check valve, is an automatic control valve whose core function is to restrict unidirectional fluid flow and prevent backflow. Using a check valve prevents backflow of water in the return line 50 and allows for automatic opening and closing without manual intervention, thus protecting equipment and stabilizing the system. Furthermore, the check valve achieves automatic backflow prevention through a purely mechanical structure, offering advantages such as low cost, high reliability, and maintenance-free operation.

[0051] Furthermore, in order to optimize the control of the first water outlet pipe 30 and the second water outlet pipe 40, in some embodiments, optionally, such as Figure 1 As shown, the drinking water equipment also includes a second switch valve 310, a third switch valve 410, and a second check valve 420. The second switch valve 310 is located between the first end of the first water outlet pipe 30 and the connection point between the return pipe 50 and the first water outlet pipe 30. The third switch valve 410 is located on the second water outlet pipe 40. The second check valve 420 is located between the third switch valve 410 and the kettle 430 to prevent water in the kettle 430 from flowing back into the filter device 20.

[0052] In these embodiments, a second switching valve 310 is provided on the first water outlet pipe 30, and a third switching valve 410 is provided on the second water outlet pipe 40. These valves can be used to control the opening and closing of the water outlet pipes, enabling independent control of the opening and closing of the first water outlet pipe 30 and the second water outlet pipe 40, thereby improving the controllability of the first water outlet pipe 30 and the second water outlet pipe 40. Specifically, the first water outlet pipe 30 and the second water outlet pipe 40 can be kept closed, the first water outlet pipe 30 and the second water outlet pipe 40 can be kept open, the first water outlet pipe 30 can be opened and the second water outlet pipe 40 can be closed, and the second water outlet pipe 40 can be opened and the first water outlet pipe 30 can be closed. The second one-way valve 420 can be used to prevent water in the kettle 430 from flowing back into the third switching valve 410 and the filter device 20, thereby avoiding affecting the safety and lifespan of the third switching valve 410 and the filter device 20.

[0053] In some embodiments, optionally, such as Figure 1As shown, the filter device 20 also has a concentrated water outlet 230, and the drinking water device also includes a concentrated water pipeline 60 connected to the concentrated water outlet 230 and a fourth switch valve 610 disposed on the concentrated water pipeline 60; the drinking water device also includes a controller for controlling the operation of the second switch valve 310, the third switch valve 410 and the fourth switch valve 610. The controller can control the second switch valve 310 and the third switch valve 410 to close and the fourth switch valve 610 to open, so as to perform a flushing mode on the filter device 20. The controller can also control at least one of the second switch valve 310 and the third switch valve 410 to open and control the fourth switch valve 610 to close, so as to perform a pure water production mode.

[0054] In these embodiments, the filter device 20 is flushed by the cooperation of the first pumping device 10, the concentrated water pipeline 60, and the fourth switching valve 610. This flushes away organic matter and colloids adhering to the surface of the filter device 20, reduces the breeding ground for microorganisms, and improves the cleanliness of the filter device 20. Through regular or automatic flushing, the performance degradation caused by impurities trapped in the filter device 20 is solved, extending the service life of the filter device 20 and ensuring water quality safety. Specifically, during the flushing process of the filter device 20, the second switching valve 310 and the third switching valve 410 are closed to prevent water from flowing into the first outlet pipeline 30 and the second outlet pipeline 40. The first pumping device 10 operates, drawing tap water or other water sources into the filter device 20 to flush it.

[0055] Furthermore, in some embodiments, optionally, the fourth switching valve 610 is provided with a first water passage hole and a second water passage hole, the diameter of the first water passage hole being larger than the diameter of the second water passage hole. The first water passage hole is used to open during the execution of the flushing mode to discharge flushing water, and the second water passage hole is used to discharge concentrated water during the execution of the pure water production mode.

[0056] In these embodiments, the first water passage on the fourth switching valve 610 can switch between open and closed states. During the flushing mode, the first water passage of the fourth switching valve 610 is open, and the water flushing the filter device 20 enters the concentrated water pipeline 60 through the first water passage. After the flushing mode ends, the first water passage can be closed. During the pure water production mode, pure water is discharged from the purified water outlet 220 of the filter device 20, while the concentrated water containing impurities after filtration enters the concentrated water pipeline 60 through the second water passage. Changing the size of the second water passage can control the concentrated water discharge flow rate and pressure, achieving efficient filtration of the filter device 20, and balancing water conservation and performance while ensuring filtration effect.

[0057] In some embodiments, optionally, such as Figure 1 and Figure 2As shown, the drinking water equipment also includes a raw water tank 70, which is connected to the inlet of the first pumping device 10 and is also connected to the concentrated water outlet 230.

[0058] In these embodiments, the raw water tank 70 contains water for filtration, such as tap water. By further configuring the raw water tank 70 to connect to the inlet of the first pumping device 10, an independent water source can be provided for the drinking water equipment, eliminating the need to directly connect the drinking water equipment to the tap water pipe, thus improving the flexibility of the drinking water equipment setup. Simultaneously, the raw water tank 70 is also connected to the concentrated water pipeline 60, forming a closed loop consisting of the raw water tank 70, the first pumping device 10, the filtration device 20, and the concentrated water pipeline 60. This allows concentrated water or unfiltered flushing water flowing from the fourth switch valve 610 to flow back to the raw water tank 70. When the remaining residual water in the raw water tank 70 is no longer usable, the residual water can be drained before new raw water is injected, thus achieving concentrated water drainage and new water injection in one go, improving the convenience of user operation.

[0059] To improve water control accuracy, in some embodiments, optionally, such as Figure 1 As shown, the drinking water equipment also includes a flow meter 340, which is installed on the first outlet pipe 30 and located between the connection point of the return pipe 50 and the first outlet pipe 30 and the first switch valve 320.

[0060] In these embodiments, by setting a flow meter 340, the forward and reverse flow velocity or flow rate of the water in the first outlet pipe 30 between the connection point of the return pipe 50 and the first outlet pipe 30 and the first switch valve 320 can be monitored in real time. The flow data is fed back to the controller, which then links the second pumping device 350, the first switch valve 320, the second switch valve 310 and other components to realize the automatic adjustment of the flow rate of the first outlet pipe 30. This allows for more precise control of the amount of water flowing out of the water outlet 330, enabling on-demand water supply.

[0061] It is understandable that the forward water flow rate refers to the flow rate of water flowing from the connection point of the return pipe 50 and the first outlet pipe 30 towards the first switch valve 320; the reverse water flow rate refers to the flow rate flowing back from the front side of the first switch valve 320 towards the connection point of the return pipe 50 and the first outlet pipe 30.

[0062] Further, as an example, the flow meter may optionally be an electromagnetic flow meter or an ultrasonic flow meter. Electromagnetic flow meters and ultrasonic flow meters can simultaneously measure forward and reverse flow and record or accumulate them separately, which is suitable for scenarios where it is necessary to monitor bidirectional water flow.

[0063] Understandably, the flow meter 340 can also be installed on any section of the pipeline between the first switching valve 320 and the outlet.

[0064] Understandably, a flow meter can also be installed on the second water outlet pipe 40 to more accurately control the amount of water supplied to the kettle 430 and achieve on-demand water supply.

[0065] In some embodiments, the first switching valve 320 may optionally be a negative pressure valve. Setting the first switching valve 320 as a negative pressure valve allows for more precise control of water flow, thereby ensuring a more accurate flow rate at the outlet 330. Specifically, the negative pressure valve achieves flow control through a constant negative pressure difference mechanism. Utilizing the negative pressure (Bernoulli effect) generated when fluid flows through the valve port, combined with the elastic feedback of the spring and diaphragm, it automatically compensates for upstream and downstream pressure fluctuations, maintaining stable flow. When system pressure changes abruptly (such as water hammer, pump start-up or shutdown), the diaphragm and spring respond quickly, adjusting the valve opening within milliseconds to suppress flow fluctuations, resulting in more precise flow control.

[0066] Furthermore, a second pumping device 350 is connected to the outlet end of the negative pressure valve. When the second pumping device 350 operates, it draws air out of the negative pressure valve, reducing the pressure inside the valve. The external atmospheric pressure then pushes in, causing the diaphragm to move and opening the channel inside the negative pressure valve, allowing water to flow out through the channel.

[0067] In some embodiments, optionally, such as Figure 1 As shown, the drinking water equipment also includes: a second water pumping device 350, which is installed on the first water outlet pipe 30 and connected to the outlet of the first switch valve 320; and an instant heating component 360, which is installed on the first water outlet pipe 30 and connected to the outlet of the second water pumping device 350.

[0068] In these embodiments, the second pumping device 350 can further increase the flow pressure of the water in the first outlet pipe 30. The filtered water flows through the first outlet pipe 30 through the synergistic action of the first switching valve 320 and the second pumping device 350, and finally flows to the spout 330. The introduction of the second pumping device 350 can improve the water output efficiency and stability of the drinking water equipment, especially in cases of low water pressure or long pipes, thus better ensuring the normal operation of the drinking water equipment. Furthermore, the instant heating component 360 can quickly heat the flowing pure water, improving heating efficiency. When the drinking water equipment is working, the second pumping device 350 pushes water to the instant heating component 360, which heats the water to the set temperature. The heated hot water then flows through the first water supply to the spout 330.

[0069] Understandably, a third pumping device can also be installed on the second water outlet pipe 40 to increase the flow pressure of the water in the second water outlet pipe 40, so that the water can be supplied to the kettle 430 more quickly and stably.

[0070] Furthermore, the water dispenser also includes a temperature sensor. When operating the dispenser, the user can set the desired heating temperature via a control device (such as a button, switch, or touchscreen). The temperature sensor monitors the water temperature and controls the power of the heating element according to the set temperature to maintain the water within the desired temperature range. The user only needs to set the heating temperature, and the dispenser will automatically control the operation of the instant heating component 360. This instant heating component 360 provides the water dispenser with the function of heating water. Through the instant heating component 360, users can obtain hot water at the desired temperature, providing a more comfortable drinking experience that satisfies individual tastes. In addition, the connection method and location arrangement of the instant heating component 360 allow hot water to be directly supplied to the water outlet 330 without the need for additional piping or devices, simplifying the system structure and operation and improving the overall efficiency of the water dispenser.

[0071] Understandably, when room temperature water is needed, the instant heating element 360 can be controlled to not heat, and the filtered pure water flows directly out from the water outlet 330, thus achieving the function of dispensing room temperature water.

[0072] Specifically, the second pumping device 350 is connected to the outlet of the first switching valve 320, meaning it is directly connected to the first switching valve 320. When the first pumping device 10 starts and pushes water to the filter device 20, the water treated by the filter device 20 enters the first switching valve 320. The first switching valve 320 controls the pressure difference between the inlet and outlet water to ensure smooth water flow and prevent backflow. The second pumping device 350, connected to the outlet of the first switching valve 320, is responsible for further increasing the water flow pressure, thus ensuring the filtered water is smoothly delivered to the outlet 330.

[0073] Furthermore, the instant heating component 360 is connected to the outlet of the second water pumping device 350. That is, the instant heating component 360 is located on the first water outlet pipe 30 and adjacent to the outlet of the second water pumping device 350. This can shorten the distance between the instant heating component 360 and the water outlet 330, so that the water heated by the instant heating component 360 can flow out of the water outlet 330 as soon as possible, thereby improving the accuracy of the water temperature.

[0074] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the drinking water equipment also includes: a main unit 80, a mounting platform 810 at the bottom of the main unit 80, a kettle 430 that can be detachably mounted on the mounting platform 810, a water passage at the bottom of the kettle 430, and a valve that can control the opening and closing of the water passage. The second end of the second water outlet pipe 40 is inserted into the water passage to inject water into the kettle 430.

[0075] In these embodiments, a water passage is provided at the bottom of the kettle 430, and the second water outlet pipe 40 is inserted into the water passage from the bottom of the kettle 430, so that water can be injected into the kettle 430 from the bottom. This allows the second water outlet pipe 40 to be hidden in the mounting platform 810, making the appearance of the water drinking equipment simpler.

[0076] Specifically, a lower coupler is provided on the mounting platform 810, and an upper coupler is provided on the bottom wall of the kettle 430. When the kettle 430 is placed on the mounting platform 810, the upper coupler and the lower coupler are electrically connected. Furthermore, both the upper and lower couplers are provided with water passages. After the kettle 430 is placed on the mounting platform 810, the valve is opened, and the water passages of the upper and lower couplers are connected. After the kettle 430 is removed from the mounting platform 810, the valve is closed, and the water passages of both the upper and lower couplers are sealed.

[0077] Furthermore, the mounting platform 810 is located on the front side of the main unit 80 for user convenience. The kettle 430 and the spout 330 are arranged side-by-side on the front side of the main unit 80. The kettle 430 is positioned on the left or right end of the mounting platform 810 for easy access. The spout 330 is located on the side of the mounting platform 810 where the kettle 430 is not located, and is situated above the mounting platform 810. The side of the mounting platform 810 where the kettle 430 is not located forms a water receiving platform for accommodating water-receiving tools (such as cups, kettles, etc.), ensuring that the water receiving space is on the same side of the main unit 80 as the kettle 430, facilitating user operation.

[0078] In some embodiments, the second switching valve 310 may be a switching solenoid valve; the third switching valve 410 may be a switching solenoid valve. The switching solenoid valve can achieve full opening or closing, and can also conveniently switch the opening and closing of the second switching valve 310 and the third switching valve 410 directly using the electrical control signal issued by the controller, which helps to simplify the structure of the drinking water equipment.

[0079] In some embodiments, the first pumping device 10 may optionally be a booster pump or a self-priming pump; the second pumping device 350 may also be a booster pump or a self-priming pump. The booster pump can increase water pressure, forcing water to flow quickly through the filter device 20, ensuring purification efficiency. The self-priming pump has advantages such as no priming required, high suction lift, resistance to dry running, and resistance to impurities, simplifying the operation process and reducing long-term operating and maintenance costs through structural optimization.

[0080] In some embodiments, the filtration device 20 may optionally include a reverse osmosis membrane filter element, which can be used to produce pure water, has good filtration effect, and can be replaced or cleaned regularly.

[0081] While the embodiments of the present invention have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope thereof. It should be understood that, to those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of the present invention as defined in the claims.

Claims

1. A drinking water device, characterized in that, The drinking water equipment includes a first pumping device (10), a filter device (20), a kettle (430), a water outlet (330), and a first water outlet pipe (30) and a second water outlet pipe (40) connected in parallel. The filter device (20) has a raw water inlet (210) and a purified water outlet (220). The raw water inlet (210) is connected to the outlet of the first pumping device (10). The first end of the first water outlet pipe (30) and the first end of the second water outlet pipe (40) are both connected to the purified water outlet (220). The second end of the first water outlet pipe (30) is connected to the water outlet (330), and the second end of the second water outlet pipe (40) is connected to the kettle (430). The first outlet pipe (30) is provided with a first switch valve (320), which can be closed to cut off the water flow in the first outlet pipe (30). The drinking water equipment also includes a return pipe (50) connecting the inlet of the first switch valve (320) and the inlet of the first pumping device (10). The return pipe (50) is provided with a first check valve (510), which allows the water in front of the inlet of the first switch valve (320) to flow back to the inlet of the first pumping device (10).

2. The drinking water equipment according to claim 1, characterized in that, The drinking water equipment also includes a second switch valve (310) and a third switch valve (410). The second switch valve (310) is located between the first end of the first outlet pipe (30) and the connection point between the return pipe (50) and the first outlet pipe (30). The third switch valve (410) is located on the second outlet pipe (40).

3. The drinking water equipment according to claim 2, characterized in that, The drinking water device also includes a second one-way valve (420), which is disposed between the third switch valve (410) and the kettle (430) to prevent water in the kettle (430) from flowing back into the filter device (20).

4. The drinking water equipment according to claim 2, characterized in that, The filter device (20) also has a concentrated water outlet (230), and the drinking water equipment also includes a concentrated water pipeline (60) connected to the concentrated water outlet (230) and a fourth switch valve (610) provided on the concentrated water pipeline (60). The drinking water equipment also includes a controller for controlling the operation of the second switch valve (310), the third switch valve (410), and the fourth switch valve (610). The controller can control the second switch valve (310) and the third switch valve (410) to close and the fourth switch valve (610) to open, so as to perform a flushing mode on the filter device (20). The controller can also control at least one of the second switch valve (310) and the third switch valve (410) to open and control the fourth switch valve (610) to close, so as to perform a pure water production mode.

5. The drinking water equipment according to claim 4, characterized in that, The fourth switch valve (610) is provided with a first water passage hole and a second water passage hole. The diameter of the first water passage hole is larger than that of the second water passage hole. The first water passage hole is used to open to discharge flushing water during the flushing mode, and the second water passage hole is used to discharge concentrated water during the pure water production mode.

6. The drinking water equipment as described in claim 4, characterized in that, The drinking water equipment also includes a raw water tank (70), which is connected to the inlet of the first pumping device (10). The raw water tank (70) is also connected to the concentrated water outlet (230) through the concentrated water pipeline (60).

7. The drinking water equipment according to any one of claims 1 to 6, characterized in that, The drinking water equipment also includes: A flow meter (340) is installed on the first outlet pipe (30) and located between the connection point of the return pipe (50) and the first outlet pipe (30) and the first switch valve (320).

8. The drinking water equipment according to any one of claims 1 to 6, characterized in that, The first switching valve (320) is a negative pressure valve.

9. The drinking water equipment according to any one of claims 1 to 6, characterized in that, The drinking water equipment also includes: The second pumping device (350) is installed on the first outlet pipe (30) and located between the first switch valve (320) and the outlet nozzle (330); The instant heating component (360) is disposed on the first water outlet pipe (30) and located between the second water pumping device (350) and the water outlet (330).

10. The drinking water equipment according to any one of claims 1 to 6, characterized in that, The drinking water equipment also includes: The main unit (80) has a mounting platform (810) at its bottom. The kettle (430) can be detachably mounted on the mounting platform (810). The kettle (430) has a water passage at its bottom and a valve that can control the opening and closing of the water passage. The second end of the second water outlet pipe (40) is inserted into the water passage to inject water into the kettle (430).

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