Water storage device and drinking water purification equipment

Abstract

The present application provides a water storage device and a water purifying and drinking device. The water storage device includes a first water tank, a second water tank, a first liquid level switch device, a heating device and a third water tank. The second water tank is provided with a water replenishing port communicating with the first water tank. The first liquid level switch device is arranged at the water replenishing port. The water inlet port of the heating device communicates with the first water tank. The water outlet port of the heating device communicates with the water inlet port of the third water tank. The water outlet port of the third water tank communicates with the first water tank. The first water tank is provided with a water outlet. The second water tank is arranged above the first water tank. The height of the third water tank is higher than the height where the first preset water level is located. When in use, when the drinking water in the first water tank is lower than the first preset water level, the second water tank can be controlled by the first liquid level switch device to automatically replenish water to the first water tank until the liquid level in the first water tank reaches the first preset water level, without relying on a water pump to pump water for replenishment frequently.

Description

Technical Field

[0001] This application belongs to the technical field of water purification and drinking appliances. More specifically, it relates to a water storage device and a water purifying and drinking device. Background Art

[0002] A pipeline machine, also known as a pipeline water dispenser, is usually used in conjunction with a water purifier and is generally used in families, offices, schools, etc. When in use, the water filtered and purified by the water purifier needs to be pre-stored in the water storage tank of the pipeline machine, and then the water stored in the water storage tank is heated by a heating pipe to provide directly drinkable hot water.

[0003] In the current market, a pipeline machine generally pumps the filtered and purified water into the water storage tank through a water pump to keep the water level in the water storage tank at a preset water level, preventing the heating pipe from dry burning due to a low water level in the water storage tank. However, during the process of the pipeline machine relying on the water pump to replenish water into the water storage tank, the frequent pumping work of the water pump not only generates relatively large noise, but also when the water pump gets stuck or idles, the water level in the water storage tank cannot be maintained at the preset water level, resulting in dry burning of the heating pipe and damage to the pipeline machine. Summary of the Invention

[0004] One of the purposes of this application is to provide a water storage device to solve the problem in the related art that the pipeline machine relies on the water pump to frequently pump water into the water storage tank for replenishment, which not only generates relatively large noise, but also when the water pump gets stuck or idles, the water level in the water storage tank cannot be maintained at the preset water level.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of this application is: to provide a water storage device, including:

[0006] A first water tank for storing drinking water;

[0007] A second water tank, provided with a water replenishing port communicating with the first water tank, for storing drinking water and replenishing the drinking water into the first water tank;

[0008] A first liquid level switch device, disposed at the water replenishing port to close the water replenishing port when the drinking water in the first water tank reaches a first preset water level; and

[0009] A heating device for heating drinking water;

[0010] A third water tank for storing the drinking water heated by the heating device;

[0011] The water inlet port of the heating device is communicated with the first water tank, the water outlet port of the heating device is communicated with the water inlet port of the third water tank, the water outlet port of the third water tank is communicated with the first water tank, and the first water tank is provided with a water outlet; the second water tank is arranged above the first water tank, the third water tank is located above the heating device, and the height of the third water tank is higher than the height where the first preset water level is located.

[0012] In one embodiment, the heating device includes a heating container for containing drinking water, an electric heating element for heating the drinking water in the heating container, a first water pipe connecting the water inlet port of the heating container with the first water tank, and a second water pipe connecting the water outlet port of the third water tank with the first water tank, and the electric heating element is placed in the heating container.

[0013] In one embodiment, the heating container is tubular, one end of the first water pipe away from the first water tank is communicated with the bottom end of the heating container, the water inlet port of the third water tank is communicated with the top end of the heating container, and the height of the top end of the heating container is lower than the height where the first preset water level is located.

[0014] In one embodiment, a partition is provided in the third water tank to divide the third water tank into a boiling water accommodating cavity and a boiling water reflux cavity, the height of the top edge of the partition is higher than the height where the first preset water level is located, the top end of the heating container is communicated with the boiling water accommodating cavity, and one end of the second water pipe away from the first water tank is communicated with the bottom of the boiling water reflux cavity.

[0015] In one embodiment, the third water tank is further provided with a boiling water drain port for discharging the boiling water in the boiling water accommodating cavity.

[0016] In one embodiment, the water storage device further includes a temperature sensor for detecting the temperature of the drinking water in the first water tank and a controller for controlling the heating operation of the heating device according to the temperature information detected by the temperature sensor, and the temperature sensor and the heating device are electrically connected to the controller respectively.

[0017] In one embodiment, a baffle is provided in the first water tank for slowing down the mixing speed of the drinking water flowing into the first water tank from the water replenishing port and the drinking water in the first water tank, the setting position of the baffle corresponds to the position of the water replenishing port, and a gap for the drinking water flowing in from the water replenishing port is formed between the baffle and the inner side wall of the first water tank.

[0018] In one embodiment, the second water tank is provided with a water inlet, and the water storage device further includes a second liquid level switch device arranged at the water inlet for closing the water inlet when the drinking water in the second water tank reaches the second preset water level.

[0019] In one embodiment, the first liquid level switch device is a float valve or a float switch.

[0020] The second objective of this application is to provide a pipeline machine to solve the problem in the related art that the pipeline machine of the pure drinking equipment relies on the water pump to frequently pump water into the water storage tank for water replenishment, which not only generates relatively large noise, but also when the water pump gets stuck or idles, the water level in the water storage tank cannot be maintained at the preset water level.

[0021] To achieve the above objective, the technical solution adopted in the embodiment of this application is: to provide a pure drinking equipment, including the water storage device.

[0022] One or more of the above technical solutions in the embodiment of this application have at least one of the following technical effects:

[0023] The beneficial effects of the water storage device and the pure drinking equipment provided by this application are as follows: Compared with the prior art, when the drinking water in the first water tank is lower than the first preset water level during use, the first liquid level switch device opens the water replenishment port, and the second water tank located above the first water tank automatically replenishes drinking water into the first water tank until the liquid level in the first water tank reaches the first preset water level, and the first liquid level switch device closes the water replenishment port. In this way, the first liquid level switch device can be used to control the second water tank to automatically replenish water into the first water tank in a timely manner, without relying on the water pump to frequently pump water for replenishment, which not only avoids relatively large noise generated during water replenishment of the pure drinking equipment, but also prevents the situation where the water level in the water storage tank cannot be maintained at the preset water level when the water pump gets stuck or idles, being safe and reliable. Moreover, the drinking water heated by the heating device is stored in the third water tank. Since the height of the third water tank is higher than the height where the first preset water level is located, it can effectively prevent the drinking water in the first water tank from flowing back, effectively improving the heating efficiency of the heating device for the drinking water, and further enabling the heating device to quickly heat the drinking water to boiling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic three-dimensional structure diagram of the water storage device provided by the embodiment of this application;

[0026] Figure 2 It is a schematic cross-sectional structure diagram of the water storage device provided by the embodiment of this application;

[0027] Figure 3 Explosion structure schematic diagram of the first water tank and the second water tank provided by the embodiment of the present application;

[0028] Figure 4 Explosion structure schematic diagram of the heating device provided by the embodiment of the present application;

[0029] Figure 5 Structure schematic diagram of the third water tank provided by the embodiment of the present application with a partition board arranged therein.

[0030] Among them, the main reference signs of each drawing in the figure are as follows:

[0031] 1 - First water tank; 11 - Water outlet;

[0032] 2 - Second water tank; 21 - Water inlet; 22 - Water replenishing port; 23 - Cover body;

[0033] 3 - First liquid level switch device; 31 - Valve; 32 - Valve rod; 33 - Floating ball; 34 - Connecting rod;

[0034] 4 - Heating device; 41 - Heating container; 42 - Electric heating element; 43 - First water pipe; 44 - Second water pipe;

[0035] 5 - Third water tank; 51 - Boiling water accommodating cavity; 52 - Boiling water reflux cavity; 53 - Boiling water drain port;

[0036] 6 - Partition board;

[0037] 7 - Baffle; 71 - Gap;

[0038] 8 - Second liquid level switch device. Detailed implementation manners

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that when an element is referred to as "connected to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.

[0042] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] Please refer to Figure 1 , Figure 2 and Figure 3 , and now the water storage device provided in this application will be described. The water storage device provided in this application includes a first water tank 1, a second water tank 2, a first liquid level switch device 3, a heating device 4, and a third water tank 5. The first water tank 1 is used to store drinking water, and the first water tank 1 supplies water to the heating device 4 so that the heating device 4 heats the drinking water. The second water tank 2 is provided with a water replenishing port 22 communicating with the first water tank 1. The first liquid level switch device 3 is arranged at the water replenishing port 22. When the drinking water in the first water tank 1 is lower than the first preset water level, the first liquid level switch device 3 opens the water replenishing port 22. The second water tank 2 located above the first water tank 1 automatically replenishes the stored drinking water into the first water tank 1 through the opened water replenishing port 22 until the liquid level in the first water tank 1 reaches the first preset water level, and then the first liquid level switch device 3 closes the water replenishing port 22. The water inlet port of the heating device 4 communicates with the first water tank 1, the water outlet port of the heating device 4 communicates with the water inlet port of the third water tank 5, the water outlet port of the third water tank 5 communicates with the first water tank 1, and the first water tank 1 is provided with a water outlet 11; the second water tank 2 is arranged above the first water tank 1, and the height of the third water tank 5 is higher than the height where the first preset water level is located. Then, during use, since the third water tank is located above the heating device, the third water tank 5 centrally stores the drinking water heated by the heating device 4, improving the heating efficiency of the heating device 4 for the drinking water. Moreover, the height of the third water tank 5 is higher than the height where the first preset water level is located, preventing the drinking water in the first water tank 1 from flowing back and enabling the heating device 4 to quickly heat the drinking water to boiling.

[0044] Specifically, the drinking water mentioned in this application can be purified drinking water filtered and purified by a purification device, or pure drinking water obtained by distillation, or tap water or mineral water that can be directly drunk. The specific type of drinking water can be selected according to actual usage needs and is not uniquely limited here.

[0045] Compared with the prior art, when the drinking water in the first water tank 1 is lower than the first preset water level during use, the first liquid level switch device 3 opens the water replenishing port 22, and the second water tank 2 located above the first water tank 1 automatically replenishes drinking water into the first water tank 1 until the liquid level in the first water tank 1 reaches the first preset water level, at which time the first liquid level switch device 3 closes the water replenishing port 22. In this way, the first liquid level switch device 3 can be used to control the second water tank 2 to automatically replenish water into the first water tank 1 in a timely manner, without relying on a water pump to pump water for replenishment frequently. This not only avoids the generation of excessive noise during water replenishment of the water purifying and drinking device but also prevents the situation where the water level in the water storage tank cannot be maintained at the preset water level when the water pump gets stuck or runs idly, which is safe and reliable. Moreover, the drinking water heated by the heating device 4 is stored in the third water tank 5. Since the height of the third water tank 5 is higher than the height where the first preset water level is located, it can effectively prevent the drinking water in the first water tank 1 from flowing back, effectively improving the heating efficiency of the heating device 4 for the drinking water, and thus enabling the heating device 4 to quickly heat the drinking water to boiling.

[0046] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 As a specific implementation manner of the water storage device provided in this application, the second water tank 2 is arranged on the first water tank 1, and the bottom of the second water tank 2 covers the tank opening of the first water tank 1. The water replenishing port 22 is opened at the bottom of the second water tank 2 to facilitate the second water tank 2 to automatically and quickly replenish water into the first water tank 1 and reduce the volume of the water storage device. Moreover, a cover body 23 is provided on the tank opening of the second water tank 2 to play a dust-proof role and avoid pollution of the drinking water in the second water tank.

[0047] In one embodiment, please refer to Figure 2 and Figure 3, as a specific embodiment of the water storage device provided in the present application, the first liquid level switch device 3 is a float valve. The float valve can adopt any floating ball valve structure in the prior art that can control the opening or closing of the valve 31 according to the change of the liquid level. The float valve in this embodiment includes a valve 31 provided at the water replenishing port 22, a valve rod 32 that drives the valve 31 to move up and down to open or close the water replenishing port 22, a float 33 placed in the first water tank 1, and a connecting rod 34 that connects the valve rod 32 and the float 33. The connecting rod 34 is rotatably provided on the first water tank 1. Then, during use, when the liquid level in the first water tank 1 drops and is lower than the first preset water level, due to the lever principle, the float 33 drops and drives one end of the connecting rod 34 to swing. The other end of the connecting rod 34 drives the valve rod 32, and the valve rod 32 drives the valve rod 32 to move up and down to open the water replenishing port 22. Then, the second water tank 2 automatically replenishes the stored drinking water into the first water tank 1, and the float 33 also floats as the liquid level in the first water tank 1 rises. Until the liquid level in the first water tank 1 reaches the first preset water level, due to the lever principle, the float 33 drives one end of the connecting rod 34 to swing in the opposite direction. The other end of the connecting rod 34 drives the valve rod 32, and the valve rod 32 drives the valve rod 32 to move up and down to close the water replenishing port 22, stopping the water replenishment to the first water tank 1. In this way, the float valve can be used to control the second water tank 2 to automatically replenish the first water tank 1 in a timely manner, without relying on a water pump to pump water for replenishment, avoiding the generation of excessive noise when the water purifying device replenishes water.

[0048] In another embodiment, the first liquid level switch device 3 is a float switch. The float switch can adopt any liquid level control device in the prior art that can control the opening or closing of the liquid replenishing port according to the change of the liquid level. When the drinking water in the first water tank 1 is lower than the first preset water level, the float switch opens the water replenishing port 22. Then, the second water tank 2 automatically replenishes the stored drinking water into the first water tank 1. Until the liquid level in the first water tank 1 reaches the first preset water level, the float switch closes the water replenishing port 22. In this way, the float switch can be used to control the second water tank 2 to automatically replenish the first water tank 1 in a timely manner, without relying on a water pump to pump water for replenishment, avoiding the generation of excessive noise when the water purifying device replenishes water.

[0049] In another embodiment, the first liquid level switch device 3 may also be a liquid level switch control device having a liquid level sensor and a solenoid valve structure, which may include a liquid level sensor disposed in the first water tank 1, a solenoid valve disposed at the water replenishing port 22, and a controller for controlling the opening and closing of the solenoid valve according to the liquid level information detected by the liquid level sensor. When the drinking water in the first water tank 1 is lower than the first preset water level, the controller controls the solenoid valve to open the water replenishing port 22 according to the liquid level information detected by the liquid level sensor, and then the second water tank 2 automatically replenishes the stored drinking water into the first water tank 1 until the liquid level in the first water tank 1 reaches the first preset water level, and the controller controls the solenoid valve to close the closing port according to the liquid level information detected by the liquid level sensor. In this way, the second water tank 2 can be controlled by the float switch to automatically replenish water into the first water tank 1 in a timely manner, without relying on a water pump to pump water for replenishment, avoiding the generation of relatively large noise during the water replenishment of the water purifying device.

[0050] In one embodiment, please refer to Figure 2 and Figure 4 , as a specific implementation manner of the water storage device provided by the present application, the heating device 4 includes a heating container 41 for accommodating drinking water, an electric heating element 42 for heating the drinking water in the heating container 41, a first water pipe 43 connecting the water inlet port of the heating container 41 and the first water tank 1, and a second water pipe 44 connecting the water outlet port of the third water tank 5 and the first water tank 1, and the electric heating element 42 is placed in the heating container 41.

[0051] In this embodiment, by providing a heating device for heating drinking water, the heating device includes a heating container 41, an electric heating element 42 placed in the heating container 41, a first water pipe 43 connecting the water inlet port of the heating container 41 and the first water tank 1, and a second water pipe 44 connecting the water outlet port of the heating container 41 and the first water tank 1. Then, during use, the drinking water in the first water tank 1 enters the heating container 41 through the first water pipe 43. After the drinking water in the heating container 41 is heated to boiling by the electric heating element 42, the boiling water in the heating container 41 flows from its water outlet port into the third water tank 5. The boiling water centrally stored in the third water tank 5 then flows back to the first water tank 1 through the second water pipe 44. The boiling water flowing back to the first water tank 1 is mixed with the normal temperature water in the first water tank 1 to form warm water at a certain temperature. The mixed warm water can be transported to the water intake port of the water purifying device through a water guide pipe communicating with the water outlet 11 for the user to fetch water and drink.

[0052] In one embodiment, please refer to Figure 4 , as a specific implementation manner of the water storage device provided by the present application, the heating container 41 is tubular. One end of the first water pipe 43 far from the first water tank 1 is connected to the bottom end of the heating container 41. The water inlet port of the third water tank 5 is connected to the top end of the heating container 41, and the height of the top end of the heating container 41 is lower than the height where the first preset water level is located.

[0053] In this embodiment, by providing a tubular heating container 41, and arranging the axial direction of the tubular heating container 41 to extend along the vertical direction, and the height of the water outlet port at the top end of the tubular heating container 41 is lower than the height of the first preset water level. Then, during use, the drinking water in the first water tank 1 enters the tubular heating container 41 through the first water pipe 43 from the water inlet port at the bottom end of the tubular heating container 41. After the drinking water in the tubular heating container 41 is heated to boiling by the electric heating element 42, due to the thermal expansion and contraction of water, the boiling water in the tubular heating container 41 overflows from the water outlet port at the top end of the tubular heating container 41. The overflowing boiling water can be centrally stored in the third water tank 5. The boiling water centrally stored in the third water tank 5 can then flow back to the first water tank 1 through the second water pipe 44. After the boiling water flowing back to the first water tank 1 is mixed with the normal temperature water in the first water tank 1, warm water with a certain temperature is formed. Through the self-circulation of water, the normal temperature water in the first water tank 1 is quickly mixed and heated. The mixed warm water can be conveyed to the water intake of the water purifier through the water pipe communicating with the water outlet 11 for the user to draw water and drink.

[0054] In one embodiment, the tubular heating container 41 is a high-temperature-resistant quartz tube, and the electric heating element 42 is a heating layer coated on the inner wall of the quartz tube. The electric heating element 42 can also be an electric heating wire or an electric heating tube placed inside the quartz tube and other electric heating devices. Of course, the tubular heating container 41 can also be a steel pipe coated with an insulating layer or an insulating ceramic heating tube. Specifically, the specific material of the tubular heating container 41 can be selected according to actual needs and is not uniquely limited here.

[0055] In one embodiment, please refer to Figure 2 and Figure 4 , as a specific implementation manner of the water storage device provided by the present application, the height of the third water tank 5 is higher than the height of the first preset water level, and the tubular heating container 41 is located below the third water tank 5.

[0056] In this embodiment, by providing the third water tank 5, and the height of the third water tank 5 is higher than the height of the first preset water level, and the tubular heating container 41 is located below the third water tank 5, it is convenient to centrally store the boiling water overflowing from the water outlet port at the top end of the tubular heating container 41, and effectively prevent the drinking water with normal temperature in the first water tank 1 from flowing back to the tubular heating container 41 through the second water pipe 44, affecting the heating efficiency and effect of the electric heating element 42 on the drinking water in the tubular heating container 41, enabling the electric heating element 42 to quickly and efficiently heat the drinking water in the tubular heating container 41 to boiling, and facilitating the user to be able to obtain boiling water for drinking.

[0057] In one embodiment, please refer to Figure 5, as a specific embodiment of the water storage device provided in the present application, a partition 6 is provided in the third water tank 5 to divide the third water tank 5 into a boiling water accommodating cavity 51 and a boiling water reflux cavity 52. The height of the top edge of the partition 6 is higher than the height of the first preset water level. The top end of the heating container 41 is communicated with the boiling water accommodating cavity 51, and the end of the second water pipe 44 away from the first water tank 1 is communicated with the bottom of the boiling water reflux cavity 52.

[0058] In this embodiment, by providing a partition 6 in the third water tank 5, the third water tank 5 is divided into a boiling water accommodating cavity 51 and a boiling water reflux cavity 52 by the partition 6. Under the action of thermal expansion, the boiling water in the tubular heating container 41 can continuously overflow into the boiling water accommodating cavity 51 through the water outlet port at its top end, and then the boiling water is concentrated and stored in the boiling water accommodating cavity 51. Moreover, the height of the corresponding side of the partition 6 is higher than the height of the first preset water level. When the boiling water level in the boiling water accommodating cavity 51 is higher than the height of the corresponding side of the partition 6, the boiling water in the boiling water accommodating cavity 51 will overflow to the boiling water reflux cavity 52 through the corresponding side of the partition 6, and the boiling water overflowing into the boiling water reflux cavity 52 will preferably quickly flow back to the first water tank 1 through the second water pipe 44, so that the refluxing boiling water mixes with the normal-temperature drinking water in the first water tank 1 to form warm water at the required temperature. In addition, since a partition 6 is provided in the third water tank 5 and the height of the corresponding side of the partition 6 is higher than the height of the first preset water level, it further prevents the normal-temperature drinking water in the first water tank 1 from flowing back into the tubular heating container 41.

[0059] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 4 , as a specific embodiment of the water storage device provided in the present application, a boiling water drain port 53 for discharging the boiling water in the boiling water accommodating cavity 51 is further provided on the third water tank 5.

[0060] In this embodiment, by further providing a boiling water drain port 53 for discharging the boiling water in the boiling water accommodating cavity 51 on the third water tank 5, the boiling water can be transported to the water intake port of the water purifying and drinking device through a water guide pipe communicated with the boiling water drain port 53 for the user to take boiling water for drinking. Moreover, the boiling water drain port 53 is opened at the bottom of the third water tank 5, and a control valve for controlling the opening and closing of the boiling water drain port 53 is provided in the boiling water drain port 53. When the user needs to drink boiling water, when the control valve opens the boiling water drain port 53, the boiling water in the boiling water accommodating cavity 51 is transported to the water intake port of the water purifying and drinking device through the water guide pipe for the user to take boiling water for drinking. When the user does not need to drink boiling water, when the control valve closes the boiling water drain port 53, the boiling water in the boiling water accommodating cavity 51 overflows to the corresponding side through the partition 6 and then overflows into the boiling water reflux cavity 52, and the boiling water overflowing into the boiling water reflux cavity 52 will preferably quickly flow back to the first water tank 1 through the second water pipe 44, so that the refluxing boiling water mixes with the normal-temperature drinking water in the first water tank 1 to form warm water at the required temperature.

[0061] In one embodiment, referring to Figure 5 , as a specific implementation of the water storage device provided in the present application, a boiling water overflow port and a boiling water return port are respectively provided on the third water tank 5. The boiling water overflow port is communicated with the boiling water accommodating cavity 51, and the boiling water return port is communicated with the boiling water return cavity 52. The boiling water overflow port is communicated with the water outlet port at the top end of the heating container 41, and the boiling water return port is communicated with the other end of the second water pipe 44.

[0062] In this embodiment, by respectively providing a boiling water overflow port and a boiling water return port at the bottom of the third water tank 5, the boiling water overflow port can be communicated with the water outlet port at the top end of the heating container 41, and the boiling water return port can be communicated with the other end of the second water pipe 44, which facilitates the connection and installation of the heating container 41 and the second water pipe 44 to the third water tank 5. Moreover, by respectively locating the boiling water overflow port and the boiling water return port at the bottom of the third water tank 5, it is beneficial for the boiling water to overflow from the water outlet port at the top end of the heating container 41 into the boiling water accommodating cavity 51 of the third water tank 5 for storage, and it is convenient for the boiling water overflowing into the boiling water return cavity 52 to quickly flow back to the first water tank 1 through the second water pipe 44 for mixing and heating.

[0063] In one embodiment, as a specific implementation of the water storage device provided in the present application, the water storage device further includes a temperature sensor (not shown in the figure) for detecting the temperature of the drinking water in the first water tank 1 and a controller (not shown in the figure) for controlling the heating operation of the heating device 4 according to the temperature information detected by the temperature sensor. The temperature sensor and the heating device 4 are respectively electrically connected to the controller.

[0064] In this embodiment, by providing a temperature sensor and a controller for controlling the heating operation of the heating device according to the temperature information detected by the temperature sensor, the user can preset the warm water at the required temperature on the controller. When the temperature sensor detects that the water temperature in the first water tank 1 after the mixed water of the refluxing boiling water and the normal-temperature drinking water reaches the preset temperature, the temperature sensor feeds back the detected temperature signal to the controller, and the controller controls the heating operation of the heating device according to the temperature information detected by the temperature sensor, which realizes automatic control and saves energy.

[0065] In one embodiment, referring to Figure 3 , as a specific implementation of the water storage device provided in the present application, a baffle 7 for slowing down the mixing speed of the drinking water flowing into the first water tank 1 from the water replenishing port 22 and the drinking water in the first water tank 1 is provided in the first water tank 1. The setting position of the baffle 7 corresponds to the position of the water replenishing port 22, and a gap 71 for the drinking water flowing in from the water replenishing port 22 is formed between the baffle 7 and the inner side wall of the first water tank 1.

[0066] In this embodiment, by providing a baffle 7 in the first water tank 1 and the position of the baffle 7 corresponding to the position of the water replenishing port 22, when the second water tank 2 replenishes water to the first water tank 1, the drinking water flowing into the first water tank 1 from the water replenishing port 22 is blocked by the baffle 7, preventing the drinking water flowing into the first water tank 1 from the water replenishing port 22 from quickly and locally convectively mixing with the drinking water in the first water tank 1. Instead, the drinking water flowing into the first water tank 1 from the water replenishing port 22 can only slowly mix with the drinking water in the first water tank 1 through the gap 71 formed between the baffle 7 and the inner side wall of the first water tank 1. This ensures that the normal temperature drinking water flowing into the first water tank 1 from the water replenishing port 22 is evenly mixed with the drinking water at a certain temperature in the first water tank 1, avoiding a large fluctuation in the water temperature in the first water tank 1 caused by the normal temperature drinking water flowing into the first water tank 1 from the water replenishing port 22, resulting in a phenomenon of locally high temperature and locally low temperature, which may cause the temperature sensor to be unable to accurately detect the water temperature in the first water tank 1, thus affecting the normal operation of the water purification device and preventing the user from obtaining hot water at the desired temperature.

[0067] In one embodiment, please refer to Figure 2 and Figure 3 , as a specific implementation manner of the water storage device provided by the present application, the second water tank 2 is provided with a water inlet 21, and the water storage device further includes a second liquid level switch device 8 provided at the water inlet 21 to close the water inlet 21 when the drinking water in the second water tank 2 reaches the second preset water level.

[0068] In this embodiment, by providing the second liquid level switch device 8 at the water inlet 21 of the second water tank 2, when the drinking water in the second water tank 2 is lower than the second preset water level, the second liquid level switch device 8 opens the water inlet 21, and drinking water can be timely replenished to the second water tank 2 through an external pipeline communicated with the water inlet 21. When the drinking water in the second water tank 2 reaches the second preset water level, the second liquid level switch device 8 closes the water inlet 21. In this way, the liquid level in the second water tank 2 can be maintained at the preset water level, enabling the second water tank 2 to stably and reliably replenish water to the first water tank 1 in a timely manner, improving the safety and reliability of the water storage device, and avoiding the situation where the liquid level in the second water tank 2 is too low to replenish water to the first water tank 1 in a timely manner, resulting in insufficient liquid level in the first water tank 1, causing the heating tube to dry burn, and causing equipment damage and safety accidents.

[0069] Specifically, the second liquid level switch device 8 may have the same structure as the first liquid level switch device 3. The second liquid level switch device 8 may be a float valve or a float liquid level switch in the prior art, or may also be a liquid level switch control device having a liquid level sensor and a solenoid valve structure.

[0070] The present application also provides a water purification device, including the above-mentioned water storage device.

[0071] Compared with the prior art, the water purification device provided by the present application includes the above-mentioned water storage device. When in use, when the drinking water in the first water tank 1 is lower than the first preset water level, the first liquid level switch device 3 opens the water replenishment port 22, and the second water tank 2 located above the first water tank 1 automatically replenishes drinking water into the first water tank 1 until the liquid level in the first water tank 1 reaches the first preset water level, and the first liquid level switch device 3 closes the water replenishment port 22. In this way, the first liquid level switch device 3 can be used to control the second water tank 2 to automatically replenish water into the first water tank 1 in a timely manner, without relying on a water pump to pump water for replenishment frequently. This not only avoids generating excessive noise during water replenishment of the water purification device, but also prevents the situation where the water level in the water storage tank cannot be maintained at the preset water level when the water pump gets stuck or idles, which is safe and reliable. Moreover, the drinking water heated by the heating device 4 is stored in the third water tank 5. Since the height of the third water tank 5 is higher than the height where the first preset water level is located, it can effectively prevent the drinking water in the first water tank 1 from flowing back, effectively improving the heating efficiency of the heating device 4 for drinking water, and further enabling the heating device 4 to quickly heat the drinking water to boiling.

[0072] The foregoing are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A water storage device, characterized in that, Comprising: A first water tank for storing drinking water; A second water tank provided with a water replenishing port communicating with the first water tank, for storing drinking water and replenishing the drinking water into the first water tank; A first liquid level switch device provided at the water replenishing port to close the water replenishing port when the drinking water in the first water tank reaches a first preset water level; A heating device for heating drinking water; And A third water tank for storing the drinking water heated by the heating device; The water inlet port of the heating device is communicated with the first water tank through a first water pipe, the water outlet port of the heating device is communicated with the water inlet port of the third water tank, the water outlet port of the third water tank is communicated with the first water tank through a second water pipe, and a water outlet is provided on the first water tank; the second water tank is arranged above the first water tank, the third water tank is located above the heating device, and the height of the third water tank is higher than the height where the first preset water level is located; A baffle for slowing down the mixing speed of the drinking water flowing into the first water tank from the water replenishing port and the drinking water in the first water tank is arranged in the first water tank, the setting position of the baffle corresponds to the position of the water replenishing port, and a gap for the drinking water flowing in from the water replenishing port is formed between the baffle and the inner side wall of the first water tank; The first liquid level switch device is a float valve or a float switch; The heating device includes a heating container for containing drinking water, the heating container is tubular, one end of the first water pipe far away from the first water tank is communicated with the bottom end of the heating container, the water inlet port of the third water tank is communicated with the top end of the heating container, and the height of the top end of the heating container is lower than the height where the first preset water level is located. A partition for separating the third water tank into a boiling water accommodating cavity and a boiling water reflux cavity is arranged in the third water tank, the height of the top edge of the partition is higher than the height where the first preset water level is located, the top end of the heating container is communicated with the boiling water accommodating cavity, and one end of the second water pipe far away from the first water tank is communicated with the bottom of the boiling water reflux cavity.

2. The water storage device according to claim 1, characterized in that, The heating device further includes an electric heating element for heating the drinking water in the heating container, the first water pipe and the second water pipe, and the electric heating element is placed in the heating container.

3. The water storage device according to claim 1, characterized in that, A boiling water drain port for discharging the boiling water in the boiling water accommodating cavity is further provided on the third water tank.

4. The water storage device according to any one of claims 2 to 3, characterized in that, The water storage device further includes a temperature sensor for detecting the temperature of the drinking water in the first water tank and a controller for controlling the heating operation of the heating device according to the temperature information detected by the temperature sensor, and the temperature sensor and the heating device are respectively electrically connected to the controller.

5. The water storage device according to any one of claims 1 to 3, characterized in that A water inlet is provided on the second water tank, and the water storage device further includes a second liquid level switch device provided at the water inlet to close the water inlet when the drinking water in the second water tank reaches a second preset water level.

6. The water storage device according to claim 1, characterized in that, The float valve includes a valve arranged at the water replenishing port, a valve rod for driving the valve to move up and down to open or close the water replenishing port, a float placed in the first water tank, and a connecting rod connecting the valve rod and the float, and the connecting rod is rotatably arranged on the first water tank.

7. A drinking water purification device, characterized in that, Comprising a water storage device according to any one of claims 1 to 6.

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