Water drinking equipment

Abstract

The utility model belongs to the technical field of drinking water treatment, and discloses drinking water equipment. The water drinking equipment comprises a pure water tank assembly, a heating assembly, a water outlet structure, a temperature detection assembly and a backflow assembly. The pure water tank assembly comprises at least two pure water tanks which can communicate with each other. The heating assembly comprises a heating outlet and a heating inlet, and the heating inlet is communicated with any pure water tank in a switchable manner; the water outlet structure is communicated with the heating outlet, and the water outlet structure is used for supplying water; the temperature detection assembly is arranged on the water outlet structure and used for detecting the water flow temperature at the water outlet structure; the backflow assembly communicates with the water outlet structure and the heating inlet, and the backflow assembly is configured to be opened when the water flow temperature is smaller than a preset temperature value. The drinking equipment can increase the storage amount of pure water, cold water backflow is achieved through the backflow assembly, and the problem that part of cold water exists when hot water is discharged is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water treatment, in particular to a drinking water device. Background Art

[0002] A water purifier generally includes a pure water tank, a heating component and a water outlet structure. The pure water in the pure water tank is heated by the heating component and then flows out of the water outlet structure for use by the user. When the water is discharged, the water in the pipeline between the heating component and the water outlet structure does not reach the set temperature, and directly flows out of the water outlet structure under the pumping of the water pump, resulting in the temperature of the water outlet failing to reach the temperature desired by the user.

[0003] In addition, the water purifier has a small storage capacity for pure water and cannot provide users with a large amount of water in a short period of time, which affects the user experience. Utility Model Content

[0004] The utility model aims to provide a drinking water device, which can increase the storage capacity of pure water and solve the problem of partial cold water when hot water is produced.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A drinking water device, comprising:

[0007] A pure water tank assembly, comprising at least two interconnected pure water tanks;

[0008] A heating assembly, comprising a heating outlet and a heating inlet, wherein the heating inlet is switchably connected to any one of the pure water tanks;

[0009] A water outlet structure, connected to the heating outlet, and used for supplying water;

[0010] A temperature detection component, disposed at the water outlet structure, for detecting the water flow temperature at the water outlet structure;

[0011] A reflux component is connected to the water outlet structure and the heating inlet, and the reflux component is configured to open when the water flow temperature is less than a preset temperature value.

[0012] As an optional solution of the above-mentioned drinking water equipment, the reflux component includes a reflux pipe, and the reflux pipe is connected with the water outlet structure and the heating inlet;

[0013] The reflux assembly further comprises a switch valve, which is disposed on the reflux pipe and is configured to open when the water flow temperature is less than a preset temperature value;

[0014] Alternatively, the reflux component also includes a switching valve, which includes a first valve port, a second valve port and a third valve port, the first valve port is connected to the heating outlet, the second valve port is connected to the water outlet structure, and the third valve port is connected to the heating inlet, and the switching valve is configured to connect the first valve port and the third valve port when the water flow temperature is lower than a preset temperature value.

[0015] As an optional scheme for the above-mentioned drinking water equipment, one of at least two of the pure water tanks is a first pure water tank, and the other pure water tank is a second pure water tank, the first pure water tank is provided with a pure water inlet and a pure water outlet, the second pure water tank is provided with a water outlet, the pure water inlet is used to introduce pure water, the pure water outlet can be connected to the water outlet and the heating inlet respectively, and the first pure water tank can supply water to the second pure water tank.

[0016] As an optional solution of the above-mentioned drinking water equipment, the pure water outlet is arranged at the bottom of the first pure water tank, the water outlet is arranged at the bottom of the second pure water tank, and the first pure water tank and the second pure water tank are connected to form a communicating vessel;

[0017] and / or, the bottom height of the second pure water tank is not higher than the bottom height of the first pure water tank;

[0018] and / or, the inner top surface of the first pure water tank is not lower than the inner top surface of the second pure water tank;

[0019] And / or, the number of the second pure water tanks is at least two.

[0020] As an optional solution for the above-mentioned drinking water equipment, the pure water tank assembly also includes a first pipeline and at least one second pipeline, the first pipeline connects the pure water outlet and the heating inlet, a first switch valve is arranged on the first pipeline, each second pure water tank is correspondingly provided with the second pipeline, and the second pipeline connects the water outlet and the first pipeline.

[0021] As an optional solution of the above-mentioned drinking water equipment, a disinfection component is provided on the first pipeline, and the disinfection component is located upstream of the connection position between the second pipeline and the first pipeline;

[0022] And / or, a water pump is provided downstream of the communication position between the first pipeline and the second pipeline;

[0023] And / or, a flow meter is provided on the second pipeline.

[0024] As an optional solution for the above-mentioned drinking water equipment, the pure water tank assembly also includes a water level detection component arranged in the second pure water tank, the water level detection component is electrically connected to the first switch valve, and the first switch valve is configured to close after the liquid level in the second pure water tank reaches a preset high water level, and open after the liquid level in the second pure water tank is lower than a preset low water level.

[0025] As an optional solution of the above-mentioned drinking water equipment, the drinking water equipment also includes a casing, the second pure water tank is detachably connected to the casing, a second switch valve is arranged on the second pipeline, and the second switch valve is configured to be closed after the second pure water tank is removed from the casing.

[0026] As an optional solution of the above-mentioned drinking water equipment, the second pure water tank is detachably arranged on the outside of the housing;

[0027] And / or, the drinking water device includes a sensor, the sensor is adapted to be triggered after the second pure water tank is installed on the housing, and the sensor is electrically connected to the second switch valve.

[0028] As an optional solution of the above-mentioned drinking water equipment, the pure water tank assembly also includes:

[0029] Raw water tank;

[0030] A filter assembly, the filter assembly comprising a filter water inlet and a filter water outlet, the filter water inlet is connected to the raw water tank, and the filter water outlet is connected to the pure water tank assembly;

[0031] A flushing circuit, one end of which is connected to the filter water outlet and the other end of which is connected to the filter water inlet;

[0032] A reflux valve is arranged in the flushing circuit.

[0033] Beneficial effects of the utility model:

[0034] In the drinking water equipment provided by the utility model, the water flow temperature at the water outlet structure is detected by a temperature detection component. When the water flow temperature is lower than the preset temperature value required by the user, the reflux component connects the water outlet structure and the heating inlet, and the water in the water outlet structure will flow back to the heating component for heating; when the water flow temperature at the water outlet structure reaches the preset temperature value, the reflux component disconnects the water outlet structure and the heating component, and the water will flow out of the water outlet structure to ensure the water supply temperature.

[0035] By providing at least two pure water tanks, pure water can be stored in advance to meet the user's large water usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1This is a schematic diagram of the structure of the drinking water equipment provided by the utility model. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the structure of the drinking water equipment provided by the utility model. Figure 2 .

[0038] In the figure:

[0039] 10. Pure water tank assembly; 11. First pure water tank; 111. Pure water inlet; 112. Pure water outlet; 12. Second pure water tank; 121. Water outlet; 13. First pipeline; 14. Second pipeline; 15. First switch valve; 16. Second switch valve; 17. Disinfection assembly; 30. Heating assembly; 40. Water outlet structure; 50. Reflux assembly; 51. Reflux pipe; 52. Switching valve; 60. Water pump; 70. Raw water tank; 71. Raw water chamber; 711. Raw water outlet; 72. Waste water chamber; 73. Third water level detection component; 80. Filter assembly; 81. First filter element; 811. Filter water inlet; 812. Waste water outlet; 82. Second filter element; 821. Filter water outlet; 83. Pure water circuit; 84. Raw water circuit; 91. Flushing circuit; 92. Reflux valve; 93. One-way valve. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] This embodiment provides a drinking water device, which can provide purified pure water for users to use. The drinking water device can be a water purifier.

[0045] like Figure 1 As shown, the drinking water device includes a housing, a pure water tank assembly 10, a heating assembly 30 and a water outlet structure 40. The pure water tank assembly 10 includes at least two pure water tanks that can be connected to each other to increase the storage capacity of pure water and meet the water needs of users. The heating assembly 30 includes a heating outlet and a heating inlet, the heating inlet can be switchably connected to any pure water tank, and the heating outlet is connected to the water outlet structure 40 to provide water to the user through the water outlet structure 40.

[0046] In order to ensure that the outlet water temperature can meet the needs of users, the drinking water device also includes a temperature detection component and a reflux component 50. The temperature detection component is arranged at the outlet water structure 40 and is used to detect the water flow temperature at the outlet water structure 40. The reflux component 50 connects the outlet water structure 40 and the heating inlet, and the reflux component 50 is configured to open when the outlet water temperature is less than a preset temperature value. When the drinking water device provides hot water, the water flow temperature at the outlet water structure 40 is detected by the temperature detection component. When the water flow temperature is less than the preset temperature value required by the user, the reflux component 50 connects the outlet water structure 40 and the heating inlet, and the water in the outlet water structure 40 will flow back to the heating component 30 for heating, so as to avoid the water temperature being lower than the temperature required by the user. When the water flow temperature at the outlet water structure 40 reaches the preset temperature value, the reflux component 50 disconnects the outlet water structure 40 and the heating component 30, and the water will flow out of the outlet water structure 40 to be supplied to the user.

[0047] Optionally, the temperature detection component can be arranged at the inlet end of the water outlet structure 40, that is, the temperature detection component detects the water inlet temperature of the water outlet structure 40. When the water inlet temperature of the water outlet structure 40 reaches a preset temperature value, water flows out through the water outlet structure 40 for use by the user, which is conducive to ensuring the accuracy of the water outlet temperature.

[0048] like Figure 1 As shown, the reflux assembly 50 includes a reflux pipe 51 and a switching valve 52. The reflux pipe 51 can connect the water outlet structure 40 and the heating inlet. Specifically, the reflux pipe 51 can connect the inlet end of the water outlet structure 40 with the heating inlet. The switching valve 52 includes a first valve port, a second valve port and a third valve port. The first valve port is connected to the heating outlet, the second valve port is connected to the water outlet structure 40, and the third valve port is connected to the heating inlet. The switching valve 52 is configured to connect the first valve port and the third valve port when the outlet water temperature is less than a preset temperature value.

[0049] When the water flow temperature at the inlet end of the water outlet structure 40 is lower than the preset temperature value, the first valve port and the third valve port in the switching valve 52 are connected, and the water returns to the heating component 30 through the return pipe 51 to continue heating; when the water flow temperature at the inlet end of the water outlet structure 40 reaches the preset temperature value, the first valve port and the second valve port in the switching valve 52 are connected, and the water passing through the heating component 30 enters the water outlet structure 40 to flow out through the water outlet structure 40.

[0050] In this embodiment, the switching valve 52 is a three-way valve, which can satisfy the switching of the water flow direction, has a simple structure and low cost.

[0051] In other embodiments, the switching valve 52 may have more valve ports, as long as it can switch between the two states where the first valve port and the second valve port are connected or the first valve port and the third valve port are connected.

[0052] In some embodiments, the reflux assembly 50 may include a reflux pipe 51 and a switch valve. The reflux pipe connects the water outlet structure and the heating inlet. The switch valve is arranged on the reflux pipe 51 and can control the on-off of the reflux pipe 51. The switch valve is configured to open when the outlet water temperature is lower than a preset temperature value to realize water reflux or normal water supply.

[0053] In this embodiment, the water outlet structure 40 includes a water vapor separation box. After the heated hot water enters the water outlet structure 40, the water vapor can be separated by the water vapor separation box to avoid steam spraying when the water is discharged, thereby avoiding scalding the user.

[0054] It should be noted here that the water outlet structure 40 and the water vapor separation box are both existing technologies in the field and will not be described in detail in this embodiment.

[0055] The pure water tank assembly 10 includes at least two pure water tanks, one of which is a first pure water tank 11, and the other pure water tank is a second pure water tank 12. The first pure water tank 11 includes a pure water inlet 111 and a pure water outlet 112. The pure water inlet 111 is used to introduce pure water. The second pure water tank 12 includes a water outlet 121. The pure water outlet 112 and the water outlet 121 can both be connected to the heating inlet. The first pure water tank 11 can supply water to the second pure water tank 12.

[0056] like Figure 1 As shown, the number of the second pure water tank 12 is one, that is, the pure water tank assembly 10 includes two pure water tanks, namely the first pure water tank 11 and the second pure water tank 12. In other embodiments, the number of pure water tanks can be more than two, such as three, four or more.

[0057] In this embodiment, after pure water is passed into the first pure water tank 11, the pure water entering the first pure water tank 11 can enter the second pure water tank 12 through the pure water outlet 112 and the water outlet 121 in sequence, so that the purified pure water is stored in the first pure water tank 11 and the second pure water tank 12. The first pure water tank 11 and the second pure water tank 12 can both store pure water in advance, which can increase the pure water storage space of the drinking water equipment, thereby meeting the user's large water demand.

[0058] Optionally, the first pure water tank 11 can be fixedly arranged in the casing, and the second pure water tank 12 can be detachably connected to the casing, so that the user can remove the second pure water tank 12 and use it directly as needed, so as to quickly obtain a large amount of pure water, shorten the user's waiting time, and improve the user's experience.

[0059] In this embodiment, the first pure water tank 11 is arranged inside the housing, and the second pure water tank 12 is arranged outside the housing. That is to say, the first pure water tank 11 is a built-in pure water tank, and the second pure water tank 12 is an external pure water tank, which is detachably connected to the housing, so that the user can remove the second pure water tank 12 for use as needed, and the operation is convenient.

[0060] In other embodiments, the number of first pure water tanks 11 can be set to at least two to increase the pure water storage capacity, and at least two first pure water tanks 11 can be connected in sequence; the number of second pure water tanks 12 outside the casing can be set to at least two to increase the pure water storage capacity, and the user can choose to remove one or more second pure water tanks 12 for use according to the amount of water used.

[0061] In some embodiments, the housing may include a housing and a cover body movably connected or detachably connected to the housing, the housing is provided with a take-in / take-out port, the cover body is used to cover the take-in / take-out port, and the second pure water tank 12 is provided in the housing and can be installed into the housing through the take-in / take-out port or removed from the housing through the take-in / take-out port. Although the second pure water tank 12 is located in the housing, by providing the take-in / take-out port and the cover body, it is convenient for the user to install or remove the second pure water tank 12 from the take-in / take-out port, and the operation is convenient.

[0062] Optionally, the cover body and the shell body can be rotatably or slidably connected to open or close the access port as needed; or, the cover body can be detachably connected to the shell body by fasteners such as snap-fit ​​or screws to facilitate the installation or removal of the second pure water tank 12 after removing the cover body.

[0063] In order to ensure that pure water can enter the second pure water tank 12 through the first pure water tank 11, the first pure water tank 11 and the second pure water tank 12 can be connected to form a communicating vessel. Specifically, the first pure water tank 11 and the second pure water tank 12 are both connected to the atmosphere, and the two are connected to form a communicating vessel. The water level of the pure water in the first pure water tank 11 is flush with the water level of the pure water in the second pure water tank 12, so that pure water can enter the second pure water tank 12 through the first pure water tank 11. It is not necessary for the first pure water tank 11 and the second pure water tank 12 to be connected to the pure water source respectively, which is conducive to simplifying the pipeline.

[0064] Specifically, the pure water outlet 112 is arranged at the bottom surface of the first pure water tank 11 , and the water outlet 121 is arranged at the bottom of the second pure water tank 12 , so that the pure water in the first pure water tank 11 can smoothly enter the second pure water tank 12 .

[0065] In addition, the water inlet 121 is the inlet and outlet of the pure water in the second pure water tank 12. Pure water can enter the second pure water tank 12 through the water inlet 121, and the water in the second pure water tank 12 can also flow out through the water inlet 121. The water inlet 121 is arranged on the bottom surface of the second pure water tank 12, which also facilitates the smooth discharge of the pure water in the second pure water tank 12, improves the drainage effect of the pure water in the second pure water tank 12, and avoids the pure water remaining in the second pure water tank 12 all the time, which causes the breeding of bacteria and other pollution.

[0066] In order to allow the second pure water tank 12 to be filled with pure water under the water supply of the first pure water tank 11 or to ensure that the second pure water tank 12 can store pure water of a certain liquid level, the bottom height of the second pure water tank 12 is not higher than the bottom height of the first pure water tank 11. In other words, the lowest water level in the second pure water tank 12 is flush with the lowest water level in the first pure water tank 11, or lower than the lowest water level in the first pure water tank 11, so that the pure water source supplies pure water to the second pure water tank 12 first.

[0067] Optionally, the inner top surface of the first pure water tank 11 is not lower than the inner top surface of the second pure water tank 12. In other words, the highest water level of pure water that can be contained in the first pure water tank 11 is not lower than the highest water level of pure water that can be contained in the second pure water tank 12, so as to ensure that before the second pure water tank 12 is fully loaded, there is still space in the first pure water tank 11 to hold pure water, so as to ensure that the volume in the second pure water tank 12 can be fully utilized.

[0068] like Figure 1 As shown, the pure water tank assembly 10 also includes a first pipeline 13 and a second pipeline 14. One end of the first pipeline 13 is connected to the pure water outlet 112, and the other end can be connected to the heating inlet of the heating assembly 30; one end of the second pipeline 14 can be detachably connected to the second pure water tank 12 so as to be connected to the water outlet 121, and the other end is connected to the first pipeline 13, so as to ensure that the first pure water tank 11 and the second pure water tank 12 can be connected to the heating assembly 30 on the basis that the first pure water tank 11 and the second pure water tank 12 can be connected, so that the pure water in the first pure water tank 11 or the second pure water tank 12 can be selectively used.

[0069] It should be noted here that when at least two second pure water tanks 12 are provided, the number of the second pipelines 14 is also set to at least two, so that each second pure water tank 12 can be connected to the first pipeline 13 through a second pipeline 14 .

[0070] For the convenience of introduction, the connecting position between the second pipeline 14 and the first pipeline 13 divides the first pipeline 13 into two sections, namely a water supply section located upstream of the connecting position and a water outlet section located downstream of the connecting position. The pure water in the first pure water tank 11 can enter the second pipeline 14 through the water supply section, and then enter the second pure water tank 12 through the water outlet 121; the pure water in the first pure water tank 11 and / or the pure water in the second pure water tank 12 can enter the heating component 30 through the water outlet section for user use.

[0071] In order to control the on-off of the first pipeline 13 and the second pipeline 14, the pure water tank assembly 10 further includes a valve assembly, which is used to control the on-off of the water supply section and the second pipeline 14. In this embodiment, the valve assembly includes a first switch valve 15 and a second switch valve 16, the first switch valve 15 is arranged on the first pipeline 13, and is located upstream of the connection position of the first pipeline 13 and the second pipeline 14, that is, the first switch valve 15 is arranged on the water supply section; the second switch valve 16 is arranged on the second pipeline 14.

[0072] When the pure water source supplies pure water to the first pure water tank 11 and the second pure water tank 12, the first switch valve 15 and the second switch valve 16 are both opened, and the pure water provided by the pure water source passes through the first pure water tank 11, the pure water outlet 112 and the water outlet 121 and enters the second pure water tank 12, and the water level in the second pure water tank 12 gradually rises, and the water level in the first pure water tank 11 is always flush with the water level in the second pure water tank 12; when the second pure water tank 12 is full of pure water or the water level in the second pure water tank 12 reaches the highest liquid level, the second switch valve 16 and the first switch valve 15 are closed, the first pure water tank 11 is not connected to the second pure water tank 12, and the pure water source continues to supply pure water to the first pure water tank 11, so that the water level in the first pure water tank 11 continues to rise.

[0073] In some embodiments, the valve assembly includes a reversing valve, which includes a fourth valve port, a fifth valve port, and a sixth valve port, wherein the fourth valve port is connected to the pure water outlet 112, the fifth valve port is connected to the water port 121, and the sixth valve port is connected to the heating assembly 30. The reversing valve can switch the connection state so that the fourth valve port is connected to the fifth valve port, or one of the fourth valve port and the fifth valve port is connected to the sixth valve port. Optionally, the reversing valve can be a three-way valve.

[0074] In order to facilitate the detection of the water levels in the first pure water tank 11 and the second pure water tank 12, water level detection components are provided in the first pure water tank 11 and the second pure water tank 12, and the first pure water tank 11 and the second pure water tank 12 are correspondingly provided with a preset high liquid level and a preset low liquid level. For the convenience of introduction, the water level detection component in the first pure water tank 11 is a first water level detection component, the first pure water tank 11 is provided with a first preset high liquid level and a first preset low liquid level, and the first water level detection component can be triggered when the water level in the first pure water tank 11 reaches the first preset high liquid level and the first preset low liquid level; the water level detection component in the second pure water tank 12 is a second water level detection component, the second pure water tank 12 is provided with a second preset high liquid level and a second preset low liquid level, and the second water level detection component can be triggered when the water level in the second pure water tank 12 reaches the second preset high liquid level and the second preset low liquid level.

[0075] The water level detection member may be a float water level detection member, including a guide rod, a float and two float sensors. The guide rod extends vertically, the float is slidably arranged on the guide rod, and the two float sensors are arranged in the vertical direction, roughly flush with the heights of the preset high liquid level and the preset low liquid level, respectively. The float sensor can be arranged on the guide rod or on the side of the guide rod. The float is located between the two float sensors and moves with the change of water level. When the water level drops to the preset low liquid level, the float triggers the float sensor below; when the water level rises to the preset high liquid level, the float triggers the float sensor above. Among them, the float can trigger the float sensor by contact.

[0076] Optionally, one of the float and the float sensor may be a magnet, and the other may be a magnetically controlled switch, such as a reed switch.

[0077] In other embodiments, the water level detection component may be an ultrasonic water level meter, an electronic water gauge, or a pressure water level meter, as long as it can detect water level changes.

[0078] Optionally, the second water level detection member can be electrically connected to the valve assembly. In this embodiment, the second water level detection member is electrically connected to the first switch valve 15 and the second switch valve 16. Among them, the first switch valve 15 can be closed after the liquid level in the second pure water tank 12 reaches the second preset high water level, and opened after the liquid level in the second pure water tank 12 is lower than the second preset low water level; the second switch valve 16 can be opened after the liquid level in the second pure water tank 12 is lower than the second preset low water level. When the second water level detection member detects that the water level in the second pure water tank 12 is reduced to the second preset low liquid level, the first switch valve 15 and the second switch valve 16 are opened, and the pure water source replenishes pure water into the second pure water tank 12 through the first pure water tank 11; when the second water level detection member detects that the water level in the second pure water tank 12 rises to the second preset high liquid level, the second switch valve 16 is closed, and the first pure water tank 11 stops supplying water to the second pure water tank 12 to prevent the pure water in the second pure water tank 12 from overflowing.

[0079] In some embodiments, the second water level detecting member may be electrically connected only to the first switch valve 15 or the second switch valve 16 .

[0080] Optionally, the first water level detection component can be electrically connected to the valve assembly so as to control the on-off of the water supply section and the second pipeline 14 according to the water level change in the first pure water tank 11, so as to adjust the water supply from the first pure water tank 11 to the water outlet structure 40, or from the second pure water tank 12 to the water outlet structure 40 according to actual conditions.

[0081] In order to prevent the pure water from overflowing through the second pipeline 14 after the second pure water tank 12 is removed from the casing, the casing is provided with a sensor, which is configured to be triggered when the second pure water tank 12 is installed in the casing, and the sensor is electrically connected to the valve assembly, and the valve assembly is configured to shut off the second pipeline 14 after the second pure water tank 12 is removed from the casing. Through the cooperation of the sensor and the valve assembly, it can be ensured that after the second pure water tank 12 is removed, the second pipeline 14 is in a shut-off state to prevent the pure water from overflowing from the second pipeline 14. In this embodiment, the sensor is electrically connected to the second switch valve 16, and the second switch valve 16 can be closed after the second pure water tank 12 is removed from the casing. The on-off of the second switch valve 16 controls the on-off of the second pipeline 14 to prevent the pure water from overflowing from the second pipeline 14.

[0082] It should be noted here that the second pure water tank 12 also includes an on-off valve placed in the water outlet 121. The on-off valve can be in an open state when the second pure water tank 12 is installed in the casing, and can be in a closed state after the second pure water tank 12 is removed from the casing to avoid water leakage after the second pure water tank 12 is removed.

[0083] Optionally, the on-off valve includes an elastic member and a valve stem, a blocking portion is provided on the valve stem, the elastic member connects the valve stem and the second pure water tank 12, and the elastic member is used to drive the valve stem to move so that the blocking portion cooperates with the water outlet 121 to achieve the purpose of blocking the water outlet 121. When the second pure water tank 12 is installed on the housing, an abutment portion is provided on the housing, and the abutment portion can abut and push the valve stem to overcome the elastic force of the elastic member, so that the valve stem drives the blocking portion to move in the direction of opening the water outlet 121.

[0084] Optionally, a plugging portion is formed at the top of the valve stem, and the radial dimension of the plugging portion is larger than the radial dimension of the valve stem and equal to or larger than the radial dimension of the water outlet 121, so that the plugging portion can block the water outlet 121. The plugging portion can be made of elastic material to improve the plugging effect.

[0085] like Figure 1 As shown, a disinfection component 17 may be provided on the first pipeline 13, and the disinfection component 17 may disinfect the pure water passing through to ensure drinking hygiene.

[0086] Optionally, the disinfection assembly 17 shell is arranged on the water outlet section, and can also be arranged on the water supply section. When the disinfection assembly 17 is arranged on the water outlet section, the pure water in the first pure water tank 11 and the second pure water tank 12 can be disinfected when passing through the disinfection assembly 17 to ensure the hygiene of drinking water; when the disinfection assembly 17 is arranged on the water supply section, the pure water flowing from the first pure water tank 11 to the second pure water tank 12 or to the water outlet structure 40 can be disinfected, which is conducive to ensuring the hygiene of drinking water.

[0087] Optionally, the disinfection assembly 17 may include a UV disinfection lamp to disinfect the pure water by ultraviolet rays.

[0088] Optionally, the UV disinfection lamp can be a flow-through UV disinfection lamp.

[0089] Optionally, a flow meter is provided on the second pipeline 14 , and the flow meter can calculate the flow rate of pure water flowing through the second pipeline 14 .

[0090] In some embodiments, a flow meter may also be provided on the first pipeline 13. Optionally, the flow meter may be provided at the water outlet section of the first pipeline 13 to detect the flow rate of the pure water flowing to the water outlet structure 40.

[0091] Optionally, the water outlet section of the first pipeline 13 may be provided with a water pump 60, which can drive the pure water in the pure water tank assembly 10 to flow toward the water outlet structure 40 to ensure the water supply flow rate and flow rate.

[0092] In this embodiment, the heating inlet can be switched to be connected to the first pure water tank 11 or the second pure water tank 12. When the first switch valve 15 is opened and the second switch valve 16 is closed, the first pure water tank 11 is connected to the heating inlet; when the first switch valve 15 is closed and the second switch valve 16 is opened, the second pure water tank 12 is connected to the heating inlet; when both the first switch valve 15 and the second switch valve 16 are opened, the first pure water tank 11 and the second pure water tank 12 can be connected to the heating inlet.

[0093] Optionally, temperature sensors can be set upstream and downstream of the heating component 30 to detect the water inlet temperature and water outlet temperature of the heating component 30 respectively. The temperature sensors are electrically connected to the heating component 30 so that the heating component 30 can adjust the power of the heating component 30 according to the water inlet temperature, water outlet temperature and water temperature required by the user.

[0094] Alternatively, the temperature sensor may be a thermistor.

[0095] Optionally, when a flow meter is provided on the water outlet section of the first pipeline 13, the heating component 30 is electrically connected to the flow meter on the water outlet section. When the flow meter detects that there is no water in the water outlet section, the heating component 30 is turned off to avoid dry burning of the heating component 30.

[0096] like Figure 2 As shown, the drinking water device also includes a raw water tank 70 and a filter assembly 80. A raw water cavity 71 is formed in the raw water tank 70 for storing raw water. The raw water tank 70 is provided with a raw water outlet 711 connected to the raw water cavity 71. The filter assembly 80 includes a filter water inlet 811 and a filter water outlet 821. The filter water inlet 811 is connected to the raw water cavity 71, and the filter water outlet 821 is connected to the pure water inlet 111 of the first pure water tank 11. The raw water provided by the raw water tank 70 is filtered by the filter assembly 80 to obtain pure water, which enters the pure water tank assembly 10 for storage.

[0097] Optionally, a third water level detection member 73 is provided in the raw water tank 70, and the third water level detection member 73 is used to detect the raw water level in the raw water chamber 71 so as to replenish the raw water in time. The structure of the third water level detection member 73 can refer to the first water level detection member and the second water level detection member, and will not be described in detail here.

[0098] Optionally, a wastewater chamber 72 is further formed in the raw water tank 70 , and the filter assembly 80 includes a wastewater outlet 812 , which is communicated with the wastewater chamber 72 so that the filtered wastewater is collected in the wastewater chamber 72 .

[0099] Optionally, a third switch valve is provided between the wastewater outlet 812 and the wastewater chamber 72 , and the third switch valve can control the on-off between the wastewater outlet 812 and the wastewater chamber 72 .

[0100] A self-priming pump is also provided between the raw water tank 70 and the filtered water inlet 811. When the water level in the first pure water tank 11 exceeds the first preset high liquid level setting time, the self-priming pump is started, and the raw water is prepared into pure water through the filter assembly 80, so as to replenish water in the first pure water tank 11.

[0101] In this embodiment, the drinking water equipment further includes a raw water loop 84 , one end of the raw water loop 84 is connected to the raw water outlet 711 , and the other end is connected to the filtered water inlet 811 , and a self-priming pump is disposed on the raw water loop 84 .

[0102] Optionally, the filter assembly 80 includes at least one filter element to achieve at least one level of filtration and improve the filtering effect.

[0103] In this embodiment, the filter assembly 80 includes two filter elements, which can achieve two-stage filtration. Optionally, the two filter elements are a first filter element 81 and a second filter element 82, the first filter element 81 is a composite filter element of PPC and RO (reverse osmosis membrane), and the second filter element 82 is a T33 filter element (a composite filter element of ultra-fine polypropylene fiber and activated carbon) to ensure the filtering effect.

[0104] Optionally, the drinking water device further includes a flushing circuit 91 and a reflux valve 92, wherein one end of the flushing circuit 91 is connected to the filter water outlet 821, and the other end is connected to the filter water inlet 811, and the reflux valve 92 is arranged on the flushing circuit 91. When the flushing circuit 91 is opened, the water passing through the filter assembly 80 can flow back to the filter water inlet 811 of the filter assembly 80 through the flushing circuit 91, and the filter assembly 80 can be flushed.

[0105] Optionally, a TDS water quality detector is provided downstream of the raw water tank 70 and the first pure water tank 11. The TDS water quality detector is used to detect the water quality of the water flow passing through so as to ensure that the quality of the prepared pure water meets the requirements. Specifically, the raw water loop 84 is connected to a TDS water quality detector, and the TDS water quality detector is located upstream of the self-priming pump.

[0106] Optionally, the reflux valve 92 is electrically connected to a TDS water quality detector connected to the first pure water tank 11 , so that the reflux valve 92 can be opened in time to flush the filter assembly 80 after the water quality deteriorates.

[0107] Optionally, the drinking water equipment also includes a pure water circuit 83, one end of the pure water circuit 83 is connected to the flushing circuit 91, and the other end is connected to the pure water inlet 111, and the connecting position between the pure water circuit 83 and the flushing circuit 91 is located upstream of the reflux valve 92, so that when the reflux valve 92 is closed, pure water passing through the filtered water outlet 821 can enter the first pure water tank 11 through the pure water circuit 83.

[0108] Optionally, a one-way valve 93 is provided on both the flushing circuit 91 and the pure water circuit 83 to prevent water from flowing back.

[0109] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A drinking water device, characterized in that: include: A pure water tank assembly (10) comprises at least two pure water tanks that can be connected; A heating assembly (30), comprising a heating outlet and a heating inlet, wherein the heating inlet is switchably connected to any one of the pure water tanks; A water outlet structure (40) is communicated with the heating outlet, and the water outlet structure (40) is used for supplying water; A temperature detection component, arranged at the water outlet structure (40), and used to detect the water flow temperature at the water outlet structure (40); A reflux component (50) is connected to the water outlet structure (40) and the heating inlet, and the reflux component (50) is configured to open when the water flow temperature is less than a preset temperature value.

2. The drinking water equipment according to claim 1, characterized in that: The reflux component (50) comprises a reflux pipe (51), wherein the reflux pipe (51) is connected to the water outlet structure (40) and the heating inlet; The reflux component (50) further comprises a switch valve, which is arranged on the reflux pipe (51), and is configured to open when the water flow temperature is lower than a preset temperature value; Alternatively, the reflux component (50) further includes a switching valve (52), the switching valve (52) including a first valve port, a second valve port and a third valve port, the first valve port being connected to the heating outlet, the second valve port being connected to the water outlet structure (40), and the third valve port being connected to the heating inlet, the switching valve (52) being configured to connect the first valve port and the third valve port when the water flow temperature is less than a preset temperature value.

3. The drinking water equipment according to claim 1, characterized in that: One of at least two of the pure water tanks is a first pure water tank (11), and the other pure water tank is a second pure water tank (12). The first pure water tank (11) is provided with a pure water inlet (111) and a pure water outlet (112), and the second pure water tank (12) is provided with a water outlet (121). The pure water inlet (111) is used to introduce pure water, and the pure water outlet (112) can be connected to the water outlet (121) and the heating inlet respectively. The first pure water tank (11) can supply water to the second pure water tank (12).

4. The drinking water equipment according to claim 3, characterized in that: The pure water outlet (112) is arranged at the bottom of the first pure water tank (11), and the water outlet (121) is arranged at the bottom of the second pure water tank (12); the first pure water tank (11) and the second pure water tank (12) are connected to form a communicating vessel; and / or the bottom surface height of the second pure water tank (12) is not higher than the bottom surface height of the first pure water tank (11); and / or, the inner top surface of the first pure water tank (11) is not lower than the inner top surface of the second pure water tank (12); And / or, the number of the second pure water tanks (12) is at least two.

5. The drinking water equipment according to claim 3, characterized in that: The pure water tank assembly (10) further comprises a first pipeline (13) and at least one second pipeline (14); the first pipeline (13) is connected to the pure water outlet (112) and the heating inlet; a first switch valve (15) is arranged on the first pipeline (13); each second pure water tank (12) is correspondingly provided with the second pipeline (14); the second pipeline (14) is connected to the water outlet (121) and the first pipeline (13).

6. The drinking water equipment according to claim 5, characterized in that: The first pipeline (13) is provided with a disinfection component (17), and the disinfection component (17) is located upstream of the connection position between the second pipeline (14) and the first pipeline (13); and / or a water pump (60) is provided downstream of the connection point between the first pipeline (13) and the second pipeline (14); And / or, a flow meter is provided on the second pipeline (14).

7. The drinking water equipment according to claim 5, characterized in that: The pure water tank assembly (10) further comprises a water level detection component disposed in the second pure water tank (12), wherein the water level detection component is electrically connected to the first switch valve (15), and the first switch valve (15) is configured to close after the liquid level in the second pure water tank (12) reaches a preset high water level, and to open after the liquid level in the second pure water tank (12) is lower than a preset low water level.

8. The drinking water equipment according to claim 5, characterized in that: The drinking water device also includes a casing, the second pure water tank (12) is detachably connected to the casing, a second switch valve (16) is provided on the second pipeline (14), and the second switch valve (16) is configured to be closed after the second pure water tank (12) is removed from the casing.

9. The drinking water equipment according to claim 8, characterized in that: The second pure water tank (12) is detachably arranged on the outside of the housing; And / or, the drinking water device comprises a sensor, the sensor is adapted to be triggered after the second pure water tank (12) is installed on the housing, and the sensor is electrically connected to the second switch valve (16).

10. The drinking water equipment according to any one of claims 1 to 9, characterized in that: The pure water tank assembly (10) further comprises: Raw water tank (70); A filter assembly (80), the filter assembly (80) comprising a filter water inlet (811) and a filter water outlet (821), the filter water inlet (811) being connected to the raw water tank (70), and the filter water outlet (821) being connected to the pure water tank assembly (10); A flushing circuit (91), one end of which is connected to the filter water outlet (821) and the other end of which is connected to the filter water inlet (811); A reflux valve (92) is provided in the flushing circuit (91).

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