Water tank and platform type water purifier

Abstract

The utility model provides a water tank and a platform type water purifier. The water tank comprises a tank body, and a first water outlet and a first wastewater port are formed in the bottom of the tank body. The water tank further comprises a protection element arranged in the tank body, the protection element is of a hollow columnar structure, the first end, in the axial direction, of the protection element is arranged at the first water outlet, and the second end of the protection element extends in the direction away from the first water outlet. Along the flowing direction of the raw water, the water flow is configured to sequentially flow through the second end, the first end and the first water outlet of the protection element. By arranging the protection element, the water level flowing into the filtering system can be limited within the preset range, so that the recovery rate of the system can be ensured within the preset range, a reverse osmosis membrane of the filtering system can be protected, and the service life of the filtering system can be prolonged or ensured.

Description

Technical Field

[0001] This utility model relates to the field of water purifiers, and in particular to a water tank and a countertop water purifier. Background Technology

[0002] As people's living standards continue to improve, their awareness of drinking water safety also increases, leading to the increasing popularity of water purifiers. While under-sink water purifiers are very common, countertop water purifiers (those placed on office desks or dining tables) are relatively less prevalent. A countertop water purifier typically includes a water tank, a filtration system, a water circuit board, and the main body. The water circuit board is installed on the main body and connected to the bottom of the water tank. The water tank contains raw water and has a first outlet and a first wastewater outlet. The water circuit board has a second outlet and a second wastewater outlet corresponding to the first outlet and wastewater outlet. Raw water from the tank flows from the first outlet through the second outlet into the filtration system. The purified water after filtration is left for use, while wastewater from the filtration system flows from the second wastewater outlet through the first wastewater outlet back into the water tank.

[0003] For countertop water purifiers, the water tank's sealing performance and the filtration system's lifespan are crucial performance indicators. However, in current technology, the water tank's sealing performance in countertop water purifiers is suboptimal, and the tank's structural design can negatively impact the filtration system's lifespan. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect that the structural design of the water tank in the prior art easily affects the service life of the filtration system of the countertop water purifier, and to provide a water tank and a countertop water purifier.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A water tank for a countertop water purifier, the water tank comprising a tank body, the bottom of the tank body being provided with:

[0007] The first water outlet is connected to the interior of the water tank so that the raw water stored in the water tank can flow out from the first water outlet;

[0008] The first wastewater outlet is connected to the interior of the water tank so that the wastewater formed after the raw water is filtered can flow into the water tank from the first wastewater outlet.

[0009] The water tank also includes a protective element disposed inside the tank body. The protective element is a hollow columnar structure. The first end of the protective element along the axial direction is disposed at the first water outlet, and the second end extends in a direction away from the first water outlet.

[0010] In this configuration, the water flow is arranged to pass sequentially through the second end, the first end, and the first outlet of the protective element, along the direction of the original water flow.

[0011] In this design, raw water flows out of the tank body through the first outlet, while wastewater flows in through the first wastewater outlet. The wastewater gradually mixes with the raw water. A protective element at the first outlet ensures that water only flows into the filtration system through the protective element and the first outlet when the raw water level in the tank exceeds the height of the protective element. Therefore, the protective element limits water flow into the filtration system when the water level is low. The tank supplies water to the reverse osmosis system. As the water level in the raw water tank decreases, the concentration of the raw water and wastewater mixture increases, leading to a higher system recovery rate. A lower recovery rate better protects the reverse osmosis membrane, thus extending or ensuring the lifespan of the filtration system. In other words, by setting a protective element, the water level flowing into the filtration system is limited within a preset range, thereby ensuring the system recovery rate remains within a preset range and protecting the reverse osmosis membrane, ultimately extending or ensuring the lifespan of the filtration system.

[0012] Preferably, the second end of the protective element has a notch.

[0013] In this solution, based on the preset water level, the main function of the notch is to allow water to flow in more easily when the water level inside the tank is relatively low. Therefore, even if the water tank is not necessarily flat in the installation scenario and there is a positional deviation, reliable water flow can still be achieved.

[0014] Preferably, the first water outlet and the first wastewater outlet are spaced apart in the horizontal direction, and the notch is located on the side of the protective element opposite to the first wastewater outlet.

[0015] In this design, the notch faces the opposite direction to the first wastewater outlet. Its main purpose is to prevent excessive wastewater from flowing into the first outlet, allowing the wastewater to settle and settle in the tank before entering the first outlet, thus ensuring the lowest possible level of pollutants in the raw water.

[0016] Preferably, the height of the protective element along the axial direction is adjustable;

[0017] And / or, the water tank further includes a filter element disposed within the protective element, wherein, along the direction of the original water flow, the water flow is configured to flow sequentially through the second end of the protective element, the filter element, the first end, and the first outlet.

[0018] In this solution, as mentioned earlier, by setting up a protective element, the water level flowing into the filtration system can be limited within a preset range, thereby ensuring the system recovery rate remains within a preset range. Therefore, the height of the protective element can control, adjust, or influence the overall recovery rate of the filtration system. Thus, setting the height of the protective element to be adjustable allows it to match filtration systems with different recovery rates and to adapt to water tanks of different sizes, providing a wide range of applicability. Furthermore, the filter element can intercept impurities in the water, primarily granular carbon or other debris from the water purifier's wastewater, preventing them from re-entering the system and further protecting the filtration system.

[0019] Preferably, both the first water outlet and the first wastewater outlet are equipped with waterproof components, which can switch between a first working state and a second working state.

[0020] When the waterproof component is in the first working state, the first water outlet or the first wastewater outlet on which the waterproof component is installed is in the open state.

[0021] When the waterproof component is in the second working state, the first water outlet or the first wastewater outlet on which the waterproof component is installed is in a closed state.

[0022] In this solution, the above-mentioned structural configuration allows the waterproof component to switch between a first working state and a second working state according to actual usage. For example, when the water tank is installed on the water circuit board, the waterproof component switches to the first working state, at which point the water circuit is open, and the solenoid valve inside the water purifier can supply or drain water to the system simply by opening this water circuit. When the water tank is removed from the water circuit board, the waterproof component switches to the second working state, at which point the water in the tank cannot flow out, thus preventing unwanted leakage from the water tank.

[0023] Preferably, the waterproof component includes a sealing frame, a spring, and a sealing gasket, with both ends of the spring supported between the sealing gasket and the sealing frame;

[0024] The sealing frame is installed inside the corresponding first water outlet or first wastewater outlet;

[0025] When the waterproof component is in the first working state, the sealing gasket is separated from the sealing skeleton and supported above the sealing skeleton to form a flow channel. One end of the flow channel is connected to the corresponding first water outlet or first wastewater outlet, and the other end is connected to the interior of the tank body.

[0026] When the waterproof component is in the second working state, the sealing gasket fits against the sealing skeleton to restrict the interior of the tank body from communicating with the corresponding first water outlet or first wastewater outlet.

[0027] In this design, the aforementioned structural configuration simplifies the waterproof component's structure. Adjusting the position of the sealing gasket and sealing frame reliably regulates the component's operating state, simplifying the overall water tank structure and ensuring its sealing performance. When the water tank is installed on the water circuit board, the spring releases the sealing gasket, switching the waterproof component to its first operating state. In this state, the water circuit is open, allowing the solenoid valve inside the water purifier to supply or drain water to the system simply by opening this circuit. When the water tank is removed from the water circuit board, the sealing frame falls, and the spring moves downwards, firmly pressing the sealing gasket against the sealing frame. The waterproof component switches to its second operating state, preventing water from flowing out of the tank and thus preventing unwanted leakage.

[0028] Preferably, the tank body is further provided with a heat exchanger inlet and a heat exchanger outlet, both of which can be opened and closed; wherein, the heat exchanger inlet is used to connect the interior of the tank body with the inlet of the external heat exchanger, and the heat exchanger outlet is used to connect the outlet of the external heat exchanger with the interior of the tank body.

[0029] And / or, the water tank further includes a top cover, which is detachably mounted on the top of the tank body, and the top cover is provided with a vent hole communicating with the interior of the tank body.

[0030] In this design, the aforementioned structure is used, with the tank body additionally equipped with an openable and closable heat exchanger inlet and outlet. Depending on actual requirements, the water tank can be connected to an external heat exchanger, thereby expanding its applicability and meeting diverse usage needs. Furthermore, the vent ensures that the internal pressure of the water tank matches the external pressure, preventing the tank from expanding and rupturing during operation or being damaged by negative pressure.

[0031] Preferably, the top cover has a front end and a rear end in the horizontal direction, the front end and the rear end of the top cover have different cross-sectional dimensions, and a protrusion is provided on the front end or the rear end of the top cover, and a corresponding recess is provided on the box body to cooperate with the protrusion.

[0032] In this design, the aforementioned structural arrangement, with different cross-sectional dimensions at both ends of the top cover, facilitates quick differentiation between the two ends, preventing reverse installation and thus enabling rapid assembly of the top cover and the box body. Furthermore, the protrusions and recesses not only aid in positioning the top cover and box body during installation but also prevent incorrect installation, further ensuring that reverse installation does not occur.

[0033] This utility model also provides a countertop water purifier, including a filtration system. The countertop water purifier also includes the aforementioned water tank. The first water outlet is connected to the inlet of the filtration system, and the first wastewater outlet is connected to the wastewater outlet of the filtration system.

[0034] In this solution, as mentioned above, the structural design of the water tank can improve or guarantee the service life of the filtration system. Therefore, the countertop water purifier including the water tank can improve or guarantee the service life of the filtration system.

[0035] Preferably, the countertop water purifier further includes a water circuit board, which is snapped into the bottom of the main body of the tank and has a second water outlet and a second wastewater outlet. The second water outlet is connected between the first water outlet and the inlet of the filtration system, and the second wastewater outlet is connected between the first wastewater outlet and the wastewater outlet of the filtration system.

[0036] The bottom of the box body is provided with a first magnetic element, and the water channel plate is provided with a second magnetic element on the side facing the box body. The first magnetic element and the second magnetic element are attracted to each other.

[0037] In this solution, based on the interlocking connection between the body and the water circuit board, the connection reliability between the body and the water circuit board can be further improved by setting a first magnetic element and a second magnetic element that can magnetically attract each other, which is beneficial to improving the reliability of the countertop water purifier.

[0038] The positive and progressive effects of this utility model are as follows:

[0039] In this application, raw water flows out of the tank body from the first outlet, and wastewater flows into the tank body from the first wastewater outlet. The wastewater flowing into the tank body gradually mixes with the raw water. By setting a protective element at the first outlet, water will only flow into the filtration system through the protective element and the first outlet when the raw water level in the tank is greater than the height of the protective element. Therefore, by setting a protective element, the flow of water into the filtration system can be restricted when the water level is low. The water tank supplies water to the reverse osmosis system. As the water level in the raw water tank decreases, the concentration of the mixture of raw water and wastewater increases, resulting in a higher system recovery rate. A lower system recovery rate better protects the reverse osmosis membrane, thus helping to improve or ensure the service life of the filtration system. In other words, by setting a protective element, the water level flowing into the filtration system can be limited within a preset range, thereby ensuring that the system recovery rate is within a preset range, which helps to protect the reverse osmosis membrane of the filtration system, thereby improving or ensuring the service life of the filtration system. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of a water tank according to a preferred embodiment of the present invention.

[0041] Figure 2 This is a schematic diagram of the internal structure of the water tank according to a preferred embodiment of the present invention.

[0042] Figure 3 This is a partial structural diagram of a water tank according to a preferred embodiment of the present invention. The top cover is not shown in the diagram.

[0043] Figure 4 This is a schematic diagram of another part of the structure of the water tank according to a preferred embodiment of the present invention, where the top cover is not shown.

[0044] Figure 5 This is a schematic diagram of another part of the structure of the water tank according to a preferred embodiment of the present invention, where the top cover is not shown.

[0045] Figure 6 This is a schematic diagram of the top cover of a water tank according to a preferred embodiment of the present invention.

[0046] Figure 7 This is a schematic diagram of the waterproof component of a water tank according to a preferred embodiment of the present invention.

[0047] Figure 8 This is a schematic diagram of the structure of the first water inlet portion of the water tank in a preferred embodiment of the present invention.

[0048] Figure 9 This is a partial structural schematic diagram of a tabletop water purifier according to a preferred embodiment of the present invention.

[0049] Explanation of reference numerals in the attached figures

[0050] 1 water tank

[0051] 10 boxes of body

[0052] 101 First Outlet

[0053] 102 First Wastewater Outlet

[0054] 103 Heat Exchanger Inlet

[0055] 104 heat exchanger outlet

[0056] 105 Extension

[0057] 106 Depression

[0058] 20 protective components

[0059] 201 gap

[0060] 30 filter elements

[0061] 40 Waterproof Components

[0062] 401 Sealed Skeleton

[0063] 402 spring

[0064] 403 gasket

[0065] 50 top cover

[0066] 501 ventilation holes

[0067] 502 protrusion

[0068] 503 mounting slot

[0069] 60 First magnetic element

[0070] 2 Waterway Board Detailed Implementation

[0071] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0072] like Figures 1 to 9 As shown, this embodiment provides a water tank 1 and a countertop water purifier, the countertop water purifier including the water tank 1. Specifically, regarding the water tank 1, as... Figures 1 to 8As shown, the water tank 1 includes a tank body 10, with a first water outlet 101 and a first wastewater outlet 102 located at the bottom of the tank body 10. The first water outlet 101 is connected to the interior of the water tank 1, allowing the raw water stored in the tank 1 to flow out through the first water outlet 101; the first wastewater outlet 102 is connected to the interior of the water tank 1, allowing wastewater formed after filtration of the raw water to flow into the water tank 1 through the first wastewater outlet. The water tank 1 also includes a protective element 20 disposed within the tank body 10. The protective element 20 has a hollow cylindrical structure, with its first end located at the first water outlet 101 along the axial direction, and its second end extending away from the first water outlet 101. Along the flow direction of the raw water, the water flow is configured to sequentially pass through the second end, the first end, and the first water outlet 101 of the protective element 20.

[0073] In this embodiment, raw water flows out of the tank body 10 from the first outlet 101, and wastewater flows into the tank body 10 from the first wastewater outlet 102. The wastewater flowing into the tank body 10 gradually mixes with the raw water. By setting a protective element 20 at the first outlet 101, water will only flow into the filtration system through the protective element 20 and the first outlet 101 when the level of the raw water in the tank 1 is greater than the height of the protective element 20. Therefore, by setting the protective element 20, the flow of water into the filtration system can be restricted when the water level is low. The tank 1 supplies water to the reverse osmosis system. As the water level in the raw water tank 1 decreases, the concentration of the mixture of raw water and wastewater increases, resulting in a higher system recovery rate. A lower system recovery rate better protects the reverse osmosis membrane, thus improving or ensuring the service life of the filtration system. In other words, by setting the protective element 20, the water level flowing into the filtration system can be limited within a preset range, thereby ensuring the system recovery rate is within a preset range, which helps protect the reverse osmosis membrane of the filtration system and improves or ensures the service life of the filtration system.

[0074] like Figure 2 As shown, in this embodiment, as a preferred arrangement, the central axis of the protective element 20 is parallel to the central axis of the box body 10, and both are arranged in a vertical direction.

[0075] like Figures 2 to 4 , Figure 8 As shown, the second end of the protective element 20 has a notch 201. With this configuration, based on the preset water level, the main function of the notch 201 is to allow water to flow in more easily when the water level in the tank body 10 is relatively low. Therefore, even if the water tank 1 is not necessarily flat in the installation scenario and there is a positional deviation, reliable water flow can still be achieved.

[0076] As an example, in this embodiment, the notch 201 is actually a U-shaped groove, and there is only one notch 201. The U-shaped groove is recessed downward from the top surface of the protective element 20. In an alternative embodiment, the notch 201 can also be set to other shapes, and correspondingly, the number of notches 201 can also be set to multiple. Multiple notches 201 can be arranged at intervals along the circumference of the protective element 20, or they can be scattered on the wall surface of the protective element 20.

[0077] At least as Figure 1 As shown in Figure 5, the first outlet 101 and the first wastewater outlet 102 are arranged at intervals along the horizontal direction, and the notch 201 is provided on the side of the protective element 20 away from the first wastewater outlet 102.

[0078] With this configuration, the orientation of the notch 201 is opposite to that of the first wastewater outlet 102. Its main function is to prevent excessive wastewater from flowing into the first outlet 101, allowing the wastewater to settle and settle in the water tank 1 before entering the first outlet 101, thus ensuring that the pollutants in the raw water are minimized.

[0079] In a preferred configuration, the protective element 20 can be configured to have an adjustable height along the axial direction. As previously mentioned, by setting the protective element 20, the water level flowing into the filtration system can be limited within a preset range, thereby ensuring the system recovery rate remains within a preset range. Therefore, the height of the protective element 20 can control, adjust, or influence the overall recovery rate of the filtration system. Thus, setting the height of the protective element 20 to be adjustable allows it to match filtration systems with different recovery rates and also enables it to adapt to water tanks 1 of different specifications, thus providing a wide range of applications.

[0080] Alternatively or alternatively, at least as Figure 3 and Figure 4 As shown, the water tank 1 also includes a filter element 30, which is disposed within the protective element 20. The water flow is configured to sequentially pass through the second end of the protective element 20, the filter element 30, the first end, and the first outlet 101, along the direction of the raw water flow. The filter element 30 intercepts impurities in the water, which may primarily be particulate carbon or other debris from the wastewater of the water purifier, preventing them from re-entering the system and further protecting the filtration system.

[0081] As an example, the filter element 30 corresponds to a filter screen with a mesh size of around 70.

[0082] like Figure 2 , Figure 3 and Figure 5As shown, a waterproof component 40 is installed at both the first water outlet 101 and the first wastewater outlet 102. The waterproof component 40 can switch between a first working state and a second working state. Specifically, when the waterproof component 40 is in the first working state, either the first water outlet 101 or the first wastewater outlet 102 with the waterproof component 40 installed is in the open state. When the waterproof component 40 is in the second working state, either the first water outlet 101 or the first wastewater outlet 102 with the waterproof component 40 installed is in the closed state.

[0083] This configuration allows the waterproof component 40 to switch between a first and a second working state depending on actual usage. For example, when the water tank 1 is installed on the water circuit board 2, the waterproof component 40 switches to the first working state, at which point the water circuit is open, and the solenoid valve inside the water purifier can supply or drain water to the system simply by opening this water circuit. When the water tank 1 is removed from the water circuit board 2, the waterproof component 40 switches to the second working state, at which point the water in the water tank 1 cannot flow out, thus preventing unwanted outflow from the water tank 1.

[0084] As an example, such as Figure 2 , Figure 7 and Figure 8 As shown, the waterproof component 40 includes a sealing frame 401, a spring 402, and a sealing gasket 403. The two ends of the spring 402 are supported between the sealing gasket 403 and the sealing frame 401. The sealing frame 401 is installed inside the corresponding first water outlet 101 or first wastewater outlet 102. When the waterproof component 40 is in its first working state, the sealing gasket 403 is separated from the sealing frame 401 and supported above the sealing frame 401 to form a flow channel. One end of the flow channel is connected to the corresponding first water outlet 101 or first wastewater outlet 102, and the other end is connected to the interior of the tank body 10. When the waterproof component 40 is in its second working state, the sealing gasket 403 is in contact with the sealing frame 401 to restrict communication between the interior of the tank body 10 and the corresponding first water outlet 101 or first wastewater outlet 102.

[0085] In this embodiment, the above-described structure simplifies the waterproof component 40. Adjusting the positional relationship between the sealing gasket 403 and the sealing frame 401 reliably adjusts the working state of the waterproof component 40, simplifying the overall structure of the water tank 1 and ensuring its sealing performance. When the water tank 1 is installed on the water circuit board 2, the spring 402 releases the sealing gasket 403, and the waterproof component 40 switches to its first working state. At this time, the water circuit is open, and the solenoid valve inside the water purifier can supply or drain water to the system simply by opening this water circuit. When the water tank 1 is removed from the water circuit board 2, the sealing frame 401 falls, and the spring 402 moves downwards as well. The sealing gasket 403 firmly presses against the sealing frame 401, and the waterproof component 40 switches to its second working state. At this time, water in the water tank 1 cannot flow out, thus preventing unwanted leakage from the water tank 1.

[0086] In alternative embodiments, other structural forms of the waterproof component 40 may also be used, as long as the waterproof component 40 can be switched between the first working state and the second working state as needed.

[0087] Furthermore, such as Figures 1 to 5 As shown, the tank body 10 is also provided with a heat exchanger inlet 103 and a heat exchanger outlet 104, both of which can be opened and closed; wherein, the heat exchanger inlet 103 is used to connect the inside of the tank body 10 with the inlet of the external heat exchanger, and the heat exchanger outlet 104 is used to connect the outlet of the external heat exchanger with the inside of the tank body 10.

[0088] In this embodiment, with the above-described structure, the tank body 10 is further provided with a heat exchanger inlet 103 and a heat exchanger outlet 104 that can be opened and closed. According to actual setup requirements, the water tank 1 can be connected to an external heat exchanger, thereby expanding the applicability of the water tank 1 and meeting different usage needs.

[0089] Furthermore, in this embodiment, the heat exchanger inlet 103 and the heat exchanger outlet 104 are also equipped with the aforementioned waterproof components 40.

[0090] Furthermore, such as Figure 2 and Figure 3 As shown, the outlet end of the heat exchanger outlet 104 is also provided with a hollow columnar extension 105. The extension 105 allows the hot water flowing out of the heat exchanger outlet 104 to be delivered to a higher position, so that the hot water is on top and the cold water is on the bottom, which is more conducive to meeting the usage requirements.

[0091] like Figure 1 , Figure 2 and Figure 6As shown, the water tank 1 also includes a top cover 50, which is detachably installed on the top of the tank body 10, and the top cover 50 is provided with a vent 501 that communicates with the interior of the tank body 10. The vent 501 is provided to ensure that the pressure inside the water tank 1 is consistent with the external pressure, preventing the water tank 1 from expanding and cracking or being damaged by negative pressure during operation.

[0092] Furthermore, the top cover 50 has a front end and a rear end along the horizontal direction, with different cross-sectional dimensions at the front and rear ends. A protrusion 502 is provided on either the front or rear end of the top cover 50, and a corresponding recess 106 is provided on the box body 10 to mate with the protrusion 502. The different cross-sectional dimensions at the two ends of the top cover 50 facilitate quick differentiation between them, preventing reverse installation and thus enabling rapid installation of the top cover 50 and the box body 10. Additionally, the protrusion 502 and the recess 106 facilitate positioning of the top cover 50 and the box body 10 during installation and also prevent incorrect installation, further preventing reverse installation.

[0093] Furthermore, the portion of the top cover 50 that connects to the box body 10 has a mounting groove 503, which facilitates the installation and mating of the top cover 50 and the box body 10.

[0094] In this embodiment, the countertop water purifier includes the aforementioned water tank 1 and a filtration system (shown in the figure). The first water outlet 101 is connected to the inlet of the filtration system, and the first wastewater outlet 102 is connected to the wastewater outlet of the filtration system. As mentioned above, the structural design of the water tank 1 can improve or guarantee the service life of the filtration system. Therefore, the countertop water purifier including the water tank 1 can improve or guarantee the service life of the filtration system.

[0095] As an example, water tank 1 is made of PP material, which can solve the problem of drinking water hygiene and safety. Furthermore, to better observe the water level in water tank 1, water tank 1 is transparent.

[0096] like Figure 9 As shown, the countertop water purifier also includes a water circuit board 2, which is snapped onto the bottom of the body 10 and has a second water outlet and a second wastewater outlet. The second water outlet is connected between the first water outlet 101 and the inlet of the filtration system, and the second wastewater outlet is connected between the first wastewater outlet 102 and the wastewater outlet of the filtration system.

[0097] Combination Figure 2 , Figure 3 and Figure 5 It is understood that a first magnetic element 60 is provided at the bottom of the box body 10, and a second magnetic element (not shown in the figure) is provided on the side of the water channel plate 2 facing the box body 10. The first magnetic element 60 and the second magnetic element attract each other.

[0098] In this embodiment, based on the snap-fit ​​connection between the box body 10 and the water circuit board 2, the connection reliability between the box body 10 and the water circuit board 2 can be further improved by setting a first magnetic element 60 and a second magnetic element that can magnetically attract each other, which is beneficial to improving the reliability of the countertop water purifier.

[0099] As an example, both the first magnetic element 60 and the second magnetic element are magnets.

[0100] In the water tank 1 disclosed in this embodiment, raw water flows out of the tank body 10 from the first outlet 101, and wastewater flows into the tank body 10 from the first wastewater outlet 102. The wastewater flowing into the tank body 10 gradually mixes with the raw water. By setting a protective element 20 at the first outlet 101, water will only flow into the filtration system through the protective element 20 and the first outlet 101 when the height of the raw water in the water tank 1 is greater than the height of the protective element 20. Therefore, by setting the protective element 20, the flow of water into the filtration system can be restricted when the water level is low. The water tank 1 supplies water to the reverse osmosis system. As the water level in the raw water tank 1 decreases, the concentration of the mixture of raw water and wastewater increases, resulting in a higher system recovery rate. A lower system recovery rate better protects the reverse osmosis membrane, which is beneficial for improving or ensuring the service life of the filtration system. In other words, by setting the protective element 20, the water level flowing into the filtration system can be limited to a preset range, thereby ensuring the system recovery rate is within a preset range, which helps protect the reverse osmosis membrane of the filtration system and thus improves or guarantees the service life of the filtration system.

[0101] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A water tank for a table-top water purifier, characterized in that, The water tank includes a tank body, and the bottom of the tank body is provided with: The first water outlet is connected to the interior of the water tank so that the raw water stored in the water tank can flow out from the first water outlet; The first wastewater outlet is connected to the interior of the water tank so that the wastewater formed after the raw water is filtered can flow into the water tank from the first wastewater outlet. The water tank also includes a protective element disposed inside the tank body. The protective element is a hollow columnar structure. The first end of the protective element along the axial direction is disposed at the first water outlet, and the second end extends in a direction away from the first water outlet. In this configuration, the water flow is arranged to pass sequentially through the second end, the first end, and the first outlet of the protective element, along the direction of the original water flow.

2. The water tank of claim 1, wherein The second end of the protective element has a notch.

3. The water tank of claim 2, wherein The first water outlet and the first wastewater outlet are spaced apart in the horizontal direction, and the notch is located on the side of the protective element opposite to the first wastewater outlet.

4. The water tank of claim 1, wherein The height of the protective element along the axial direction is adjustable; And / or, the water tank further includes a filter element disposed within the protective element, wherein, along the direction of the original water flow, the water flow is configured to flow sequentially through the second end of the protective element, the filter element, the first end, and the first outlet.

5. The water tank as described in claim 1, characterized in that, Both the first water outlet and the first wastewater outlet are equipped with waterproof components, which can switch between a first working state and a second working state. When the waterproof component is in the first working state, the first water outlet or the first wastewater outlet on which the waterproof component is installed is in the open state. When the waterproof component is in the second working state, the first water outlet or the first wastewater outlet on which the waterproof component is installed is in a closed state.

6. The water tank of claim 5, wherein The waterproof component includes a sealing frame, a spring, and a sealing gasket, with both ends of the spring supported between the sealing gasket and the sealing frame; The sealing frame is installed inside the corresponding first water outlet or first wastewater outlet; When the waterproof component is in the first working state, the sealing gasket is separated from the sealing skeleton and supported above the sealing skeleton to form a flow channel. One end of the flow channel is connected to the corresponding first water outlet or first wastewater outlet, and the other end is connected to the interior of the tank body. When the waterproof component is in the second working state, the sealing gasket fits against the sealing skeleton to restrict the interior of the tank body from communicating with the corresponding first water outlet or first wastewater outlet.

7. The water tank according to any one of claims 1 to 6, wherein The tank body is also provided with a heat exchanger inlet and a heat exchanger outlet, both of which can be opened and closed; wherein, the heat exchanger inlet is used to connect the inside of the tank body with the inlet of the external heat exchanger, and the heat exchanger outlet is used to connect the outlet of the external heat exchanger with the inside of the tank body. And / or, the water tank further includes a top cover, which is detachably mounted on the top of the tank body, and the top cover is provided with a vent hole communicating with the interior of the tank body.

8. The water tank of claim 7, wherein The top cover has a front end and a rear end along the horizontal direction. The front end and the rear end of the top cover have different cross-sectional dimensions, and a protrusion is provided on the front end or the rear end of the top cover. A corresponding recess is provided on the box body to cooperate with the protrusion.

9. A table-top water purifier comprising a filtration system, characterized in that, The countertop water purifier further includes a water tank as described in any one of claims 1-8, the first water outlet is connected to the inlet of the filtration system, and the first wastewater outlet is connected to the wastewater outlet of the filtration system.

10. The table-top water purifier as claimed in claim 9, wherein, The countertop water purifier also includes a water circuit board, which is snapped into the bottom of the main body of the tank and has a second water outlet and a second wastewater outlet. The second water outlet is connected between the first water outlet and the inlet of the filtration system, and the second wastewater outlet is connected between the first wastewater outlet and the wastewater outlet of the filtration system. The bottom of the box body is provided with a first magnetic element, and the water channel plate is provided with a second magnetic element on the side facing the box body. The first magnetic element and the second magnetic element are attracted to each other.

Images