Multi-tank water purifier and control method thereof

Abstract

This invention relates to the field of water purifier technology, specifically providing a multi-tank water purifier and its control method. It aims to solve the problems of users having to hold a container at the tap for a long time when they need to collect a large amount of filtered water, or the machine becoming unusable after removing the purified water tank. To address this, the multi-tank water purifier provided by this invention includes a filtration device, an internal water tank, and an external water tank. The water purifier has an inlet and an outlet, with the filtration device connected between the inlet and outlet. The internal water tank connects the filtration device to the outlet, and the external water tank is connected to the internal water tank and is detachable. Based on this structural design, when a user needs to collect a large amount of filtered water, they can directly remove the external water tank for use. Since the water purifier also has an internal water tank, it can continue operating through the internal water tank even when the external water tank is removed, greatly improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of water purifier technology, specifically providing a multi-tank water purifier and its control method. Background Technology

[0002] With the development of water purifier technology and the increasing demand for water quality from consumers, more and more consumers are starting to install household water purifiers to filter tap water.

[0003] Traditional water purifiers typically have the faucet fixed next to the sink, requiring the user to hold a container to collect the filtered water. When a large amount of filtered water needs to be collected, the user has to hold the container in front of the faucet for a long time, resulting in poor performance. Alternatively, if the pure water tank is removed, the machine cannot be used and must be reinstalled before it can operate normally. They cannot be used simultaneously.

[0004] Accordingly, there is a need in the art for a multi-tank water purifier and its control method to solve the above-mentioned technical problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problems, namely, when users need to collect a large amount of filtered water, they need to hold the container in front of the tap and wait for a long time, or the machine cannot be used after the pure water tank is removed.

[0006] In a first aspect, the present invention provides a multi-tank water purifier, the water purifier comprising a filtration device, an internal water tank, and an external water tank.

[0007] The water purifier is equipped with an inlet and an outlet, and the filter device is connected between the inlet and the outlet.

[0008] The built-in water tank is connected between the filter device and the water outlet.

[0009] The external water tank is connected to the internal water tank, and the external water tank is detachable.

[0010] In the preferred embodiment of the multi-tank water purifier described above, the water purifier further includes a reversing valve.

[0011] The reversing valve includes a first gear and a second gear.

[0012] In the first gear position, the reversing valve connects the built-in water tank and the water outlet.

[0013] In the second position, the reversing valve connects the built-in water tank and the external water tank.

[0014] In the preferred embodiment of the multi-tank water purifier described above, the water purifier further includes a controller.

[0015] The controller is signal-connected to the reversing valve, and the controller is configured to adjust the gear of the reversing valve.

[0016] In the preferred embodiment of the multi-tank water purifier described above, the water purifier further includes a self-priming pump.

[0017] The self-priming pump is located between the water inlet and the filter device.

[0018] In the preferred embodiment of the multi-tank water purifier described above, the controller is signal-connected to the self-priming pump, and the controller is configured to control the opening and closing state of the self-priming pump.

[0019] In the preferred embodiment of the multi-tank water purifier described above, a first liquid level detection device is installed inside the built-in water tank.

[0020] The first liquid level detection device is configured to detect the water level height of the built-in water tank.

[0021] In the preferred embodiment of the multi-tank water purifier described above, a second liquid level detection device is installed inside the external water tank.

[0022] The second liquid level detection device is configured to detect the water level height of the external water tank.

[0023] In the preferred embodiment of the multi-tank water purifier described above, the water purifier further includes a heating device.

[0024] The heating device is located between the built-in water tank and the water outlet.

[0025] In the preferred embodiment of the multi-tank water purifier described above, the filtration device includes a filtration pipeline and a circulation pipeline.

[0026] The filtration pipeline includes multiple water purification components. A first end of the filtration pipeline is connected to the water inlet, and a second end of the filtration pipeline is connected to the built-in water tank.

[0027] The circulation pipeline includes a liquid check valve that connects the second end of the filter pipeline to the first end of the filter pipeline, so that liquid flows from the second end of the filter pipeline through the circulation pipeline to the first end of the filter pipeline.

[0028] With the above technical solution, the multi-tank water purifier provided by the present invention includes a filtration device, a built-in water tank, and an external water tank. The water purifier is provided with an inlet and an outlet. The filtration device is connected between the inlet and the outlet, respectively. The built-in water tank is connected between the filtration device and the outlet. The external water tank is connected to the built-in water tank and is detachable. Based on the above structural configuration, the filtration device is used to filter and purify the water to be purified to obtain purified water. The purified water is stored in the built-in water tank and the external water tank. When the user needs to collect a large amount of filtered water, the user can directly remove the external water tank for use. Since the water purifier is also provided with a built-in water tank, the water purifier can continue to work through the built-in water tank even when the external water tank is removed, greatly improving the user experience.

[0029] Furthermore, the multi-tank water purifier provided by the present invention defines a first gear position and a second gear position by setting a reversing valve. The first gear position connects the built-in water tank and the water outlet, and is used by the built-in water tank for water production and dispensing when the external water tank is disassembled or full. The second gear position connects the built-in water tank and the external water tank, and is used to fill the external water tank with water when the external water tank is not full.

[0030] Furthermore, the multi-tank water purifier provided by the present invention has a controller to adjust the gear position of the reversing valve.

[0031] Furthermore, the multi-tank water purifier provided by the present invention is equipped with a self-priming pump to control the water supply status of the water purifier, increase the water flow rate, and direct the pumped water to be purified to the filtration device for purification.

[0032] Furthermore, the multi-tank water purifier provided by the present invention limits the opening and closing state of the self-priming pump to be controlled by a controller in order to achieve automated water supply.

[0033] Furthermore, the multi-tank water purifier provided by the present invention is equipped with a first liquid level detection device for detecting the water level height of the built-in water tank.

[0034] Furthermore, the multi-tank water purifier provided by the present invention is equipped with a second liquid level detection device for detecting the water level height of the external water tank.

[0035] Furthermore, the multi-tank water purifier provided by the present invention is equipped with a heating device to heat the purified water in the built-in water tank, so that users can obtain high-temperature purified water.

[0036] Furthermore, the multi-tank water purifier provided by the present invention defines a filtration pipeline and a circulation pipeline. The filtration pipeline is used to filter and purify the raw water, and the circulation pipeline is used to maintain the liquid flow inside the filtration pipeline to prevent water odor from occurring after the filtration pipeline has been stagnant for a long time, which would affect the water quality and taste.

[0037] Secondly, the present invention also provides a control method for a multi-tank water purifier. The water purifier includes a filter device, a built-in water tank, an external water tank, and a self-priming pump. The water purifier is provided with an inlet and an outlet. The filter device is connected between the inlet and the outlet. The built-in water tank is connected between the filter device and the outlet. The external water tank is connected to the built-in water tank and is detachable. The self-priming pump is located between the inlet and the filter device. A first liquid level detection device is provided in the built-in water tank, and a second liquid level detection device is provided in the external water tank.

[0038] The method includes:

[0039] Obtain the first liquid level height value of the built-in water tank;

[0040] If the first liquid level is lower than the first threshold, the self-priming pump is turned on, and the built-in water tank and the outlet are connected.

[0041] If the first liquid level height value is higher than or equal to the first threshold, then obtain the second liquid level height value of the external water tank;

[0042] If the second liquid level height is lower than the second threshold, the self-priming pump is turned on, connecting the built-in water tank and the external water tank.

[0043] If the second liquid level height value is higher than or equal to the second threshold, then the self-priming pump is turned off, and the built-in water tank and the outlet are connected.

[0044] Based on the above control method, the control method for the multi-tank water purifier provided by the present invention determines whether the built-in water tank is full by acquiring the first liquid level height value of the built-in water tank. If the first liquid level height value is lower than the first threshold, it indicates that the built-in water tank is not full, and the self-priming pump is turned on to start water production and raise the water level in the built-in water tank. If the first liquid level height value is higher than or equal to the first threshold, it indicates that the built-in water tank is full, and the second liquid level height value of the external water tank is acquired to determine whether the external water tank is full. If the second liquid level height value is lower than the second threshold, it indicates that the external water tank is not full, and the self-priming pump is kept on to continue water production and raise the water level in the external water tank. If the second liquid level height value is higher than or equal to the second threshold, it indicates that the built-in water tank is full, and the self-priming pump is turned off to stop water production and prevent water overflow. Attached Figure Description

[0045] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0046] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the multi-tank water purifier of the present invention;

[0047] Figure 2 This is a flowchart of the main steps of the control method for the multi-tank water purifier of the present invention.

[0048] Figure label:

[0049] 1. Filtration device; 101. Filtration pipeline; 102. Circulation pipeline; 11. Water purification components; 12. Liquid check valve; 13. Inlet valve; 2. Built-in water tank; 21. First liquid level detection device; 3. External water tank; 31. Second liquid level detection device; 4. Reversing valve; 5. Self-priming pump; 6. Heating device; 01. Water inlet; 02. Water outlet. Detailed Implementation

[0050] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although this specific embodiment is described in conjunction with the application of an air pressure regulating device in a washer-dryer combo, the air pressure regulating component of the present invention can obviously also be used in other devices. Such changes in application scenarios do not depart from the basic principles of the present invention and fall within the scope of protection of the present invention.

[0051] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0052] It should be noted that, in the description of this preferred embodiment, unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be interpreted broadly. For example, it can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two elements; these should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only, and those skilled in the art can understand their specific meaning in the present invention according to the specific circumstances.

[0053] With the development of water purifier technology and the increasing demand for water quality from consumers, more and more consumers are installing household water purifiers to filter tap water. Traditional water purifiers typically have the faucet fixed next to the sink, requiring the user to hold a container to collect the filtered water. When a large amount of filtered water needs to be collected, the user has to wait for a long time in front of the faucet, resulting in poor performance. Alternatively, if the pure water tank is removed, the machine cannot be used and must be reinstalled before it can operate normally, meaning it cannot be used simultaneously.

[0054] First, see Figure 1 , Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the multi-tank water purifier provided by the present invention, as shown below. Figure 1 As shown, this invention provides a multi-tank water purifier, including a filter device 1, an internal water tank 2, and an external water tank 3. The water purifier has an inlet 01 and an outlet 02. The filter device 1 is connected between the inlet 01 and the outlet 02. The internal water tank 2 is connected between the filter device 1 and the outlet 02. The external water tank 3 is connected to the internal water tank 2 and is detachable. Based on the above structural configuration, the filter device 1 is used to filter and purify the water to be purified to obtain purified water. The purified water is stored in the internal water tank 2 and the external water tank 3. When the user needs to collect a large amount of filtered water, the user can directly remove the external water tank 3 for use. Since the water purifier also has an internal water tank 2, the water purifier can continue to work through the internal water tank 2 even when the external water tank 3 is removed, greatly improving the user experience.

[0055] In one possible implementation, the water inlet 01 is connected to the water tank to be purified, which is used to collect and store the water to be purified so that it flows to the filter device 1 for purification. The water purifier provided by this implementation is easy to carry and move, but the user needs to collect the water to be purified by himself. In another possible implementation, the water inlet 01 is directly connected to the household water pipe, and the purification process can be achieved without the need for manual collection of the water to be purified. The water purifier provided by this implementation cannot be moved because it is connected to the water supply pipe. All these technical solutions will fall within the protection scope of this invention.

[0056] In this preferred embodiment, the filtration device 1 includes at least one water purification element for purifying the water to be purified. It should be noted that the present invention does not impose any limitations on the material or quantity of the water purification element; those skilled in the art can set these parameters according to actual usage requirements. For example, the number of water purification elements can be two, three, four, etc. Figure 1 The number of water purification components shown can be two. Furthermore, this invention does not impose any restrictions on the type, size, or location of the built-in water tank 2 and the external water tank 3; those skilled in the art can set these according to actual usage requirements.

[0057] In this preferred embodiment, the water purifier further includes a reversing valve 4, which has a first position and a second position. In the first position, the reversing valve 4 connects the built-in water tank 2 and the water outlet 02. In the second position, the reversing valve 4 connects the built-in water tank 2 and the external water tank 3. The first position connects the built-in water tank 2 and the water outlet 02, and is used by the built-in water tank 2 for water production and dispensing when the external water tank 3 is disassembled or full. The second position connects the built-in water tank 2 and the external water tank 3, and is used to fill the external water tank 3 with water when it is not full. Specifically, in the first setting, the purified water flows from the inlet 01 through the filter device 1 into the built-in water tank 2, where it is stored. In the second setting, the purified water flows from the inlet 01 through the filter device 1 into the built-in water tank 2, and then into the external water tank 3, where it is stored in both the built-in and external water tanks. This allows the user to remove the external water tank 3 to obtain a large amount of purified water.

[0058] In this preferred embodiment, the water purifier further includes a controller, which is signal-connected to the reversing valve 4 and configured to adjust the speed of the reversing valve 4. Those skilled in the art will understand that the present invention does not impose any limitations on the specific structure and model of the controller, and the controller can be either the original controller of the water purifier or a controller separately configured to execute the control method of the present invention. Those skilled in the art can customize the structure and model of the controller according to actual usage requirements.

[0059] In this preferred embodiment, the water purifier further includes a self-priming pump 5, which is located between the water inlet 01 and the filter device 1. By installing the self-priming pump 5, the water supply status of the water purifier can be controlled, the water flow rate can be increased, and the pumped water to be purified can be directed to the filter device 1 for purification. It is understood that when both the built-in water tank 2 and the external water tank 3 are full, the self-priming pump 5 is turned off, and the water purifier stops producing water to prevent overflow. When either the built-in water tank 2 or the external water tank 3 is not full, the self-priming pump 5 is turned on, and the water purifier begins producing water to replenish the purified water in either tank. In this preferred embodiment, the controller is signal-connected to the self-priming pump 5, and the controller is configured to control the opening and closing state of the self-priming pump 5 to achieve automated water supply.

[0060] In this preferred embodiment, a first liquid level detection device 21 is provided inside the built-in water tank 2. The first liquid level detection device 21 is configured to detect the water level height of the built-in water tank 2. By detecting the water level height of the built-in water tank 2, it can be determined whether the water tank 2 is full, and thus control whether the self-priming pump 5 is turned on. Similarly, a second liquid level detection device 31 is provided inside the external water tank 3. The second liquid level detection device 31 is configured to detect the water level height of the external water tank 3. By detecting the water level heights of the built-in water tank 2 and the external water tank 3, it can be determined whether the water tanks are full, and thus control whether the self-priming pump 5 is turned on.

[0061] In this preferred embodiment, the water purifier further includes a heating device 6, which is disposed between the built-in water tank 2 and the water outlet 02. The heating device 6 heats the water flowing out of the built-in water tank 2, allowing the user to obtain high-temperature purified water. It should be noted that the present invention does not impose any restrictions on the type of heating device 6; those skilled in the art can set it according to actual usage needs. For example, the heating device 6 can be a rapid heater. In other embodiments, a heating element can also be installed inside the external water tank 3. When the user needs a large amount of high-temperature purified water, the heating function of the external water tank 3 can be activated to obtain hot purified water from the external water tank 3.

[0062] In this preferred embodiment, the filtration device 1 includes a filtration pipeline 101 and a circulation pipeline 102. The filtration pipeline 101 includes multiple water purification components 11. A first end of the filtration pipeline 101 is connected to a water inlet 01, and a second end of the filtration pipeline 101 is connected to a built-in water tank 2. The circulation pipeline 102 includes a liquid check valve 12, connecting the second end of the filtration pipeline 101 to the first end, allowing liquid to flow from the second end of the filtration pipeline 101 through the circulation pipeline 102 to the first end of the filtration pipeline 101. The filtration pipeline 101 is used to filter and purify the raw water, while the circulation pipeline 102 maintains liquid flow within the filtration pipeline 101 to prevent water odor that may occur after prolonged stagnation, affecting water quality and taste. In this preferred embodiment, the circulation pipeline 102 also includes an inlet valve 13 for connecting or disconnecting the circulation pipeline. The inlet valve 13 can be connected to a controller signal and has a preset start time. For example, when the self-priming pump 5 is detected to have been inactive for more than a preset time, the inlet valve 13 is opened to circulate the internal liquid of the filter pipe 101 and prevent the formation of a foul odor. It should be noted that the present invention does not impose any restrictions on the specific locations of the liquid check valve 12 and the inlet valve 13; those skilled in the art can set them according to actual usage requirements.

[0063] In addition, the present invention also provides a control method for a multi-tank water purifier, wherein the water purifier includes a filter device, an internal water tank, an external water tank, and a self-priming pump. The water purifier is provided with an inlet and an outlet. The filter device is connected between the inlet and the outlet. The internal water tank is connected between the filter device and the outlet. The external water tank is connected to the internal water tank and is detachable. The self-priming pump is located between the inlet and the filter device. A first liquid level detection device is provided in the internal water tank, and a second liquid level detection device is provided in the external water tank. (Ref. 2) Figure 2 As shown, the control method of the multi-tank water purifier of the present invention mainly includes the following steps:

[0064] S1: Obtain the first liquid level height value of the built-in water tank;

[0065] S2: If the first liquid level is lower than the first threshold, the self-priming pump will be turned on, and the built-in water tank and outlet will be connected.

[0066] S3: If the first liquid level height value is higher than or equal to the first threshold, then obtain the second liquid level height value of the external water tank;

[0067] S4: If the second liquid level height is lower than the second threshold, turn on the self-priming pump and connect the built-in water tank and the external water tank.

[0068] S5: If the second liquid level height value is higher than or equal to the second threshold, shut off the self-priming pump and connect the built-in water tank and the outlet.

[0069] Based on the above control method, the control method for the multi-tank water purifier provided by the present invention determines whether the built-in water tank is full by acquiring the first liquid level height value of the built-in water tank. If the first liquid level height value is lower than the first threshold, it indicates that the built-in water tank is not full, and the self-priming pump is turned on to start water production and raise the water level in the built-in water tank. If the first liquid level height value is higher than or equal to the first threshold, it indicates that the built-in water tank is full, and the second liquid level height value of the external water tank is acquired to determine whether the external water tank is full. If the second liquid level height value is lower than the second threshold, it indicates that the external water tank is not full, and the self-priming pump is kept on to continue water production and raise the water level in the external water tank. If the second liquid level height value is higher than or equal to the second threshold, it indicates that the built-in water tank is full, and the self-priming pump is turned off to stop water production and prevent water overflow.

[0070] Furthermore, in step S3, if the first liquid level height value is higher than or equal to the first threshold, the second liquid level height value of the external water tank is obtained. In some embodiments, if the second liquid level height value of the external water tank is not obtained, it proves that the external water tank has been disassembled, that is, the self-priming pump is turned off to stop water production and prevent the internal water tank from overflowing.

[0071] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A multi-tank water purifier, characterized in that, The water purifier includes a filter device (1), a built-in water tank (2), and an external water tank (3). The water purifier is provided with an inlet (01) and an outlet (02), and the filter device (1) is connected between the inlet (01) and the outlet (02). The built-in water tank (2) is connected between the filter device (1) and the water outlet (02). The external water tank (3) is connected to the internal water tank (2), and the external water tank (3) is detachable. The water purifier also includes a reversing valve (4). The reversing valve (4) includes a first gear and a second gear. In the first gear position, the reversing valve (4) connects the built-in water tank (2) and the water outlet (02). In the second gear position, the reversing valve (4) connects the built-in water tank (2) and the external water tank (3).

2. The multi-tank water purifier according to any one of claims 1, characterized in that, The water purifier also includes a controller. The controller is signal-connected to the reversing valve (4), and the controller is configured to adjust the gear of the reversing valve (4).

3. The multi-tank water purifier according to claim 2, characterized in that, The water purifier also includes a self-priming pump (5). The self-priming pump (5) is located between the water inlet (01) and the filter device (1).

4. The multi-tank water purifier according to claim 3, characterized in that, The controller is signal-connected to the self-priming pump (5), and the controller is configured to control the opening and closing state of the self-priming pump (5).

5. The multi-tank water purifier according to claim 1, characterized in that, The built-in water tank (2) is equipped with a first liquid level detection device (21). The first liquid level detection device (21) is configured to detect the water level height of the built-in water tank (2).

6. The multi-tank water purifier according to claim 1, characterized in that, The external water tank (3) is equipped with a second liquid level detection device (31). The second liquid level detection device (31) is configured to detect the water level height of the external water tank (3).

7. The multi-tank water purifier according to claim 1, characterized in that, The water purifier also includes a heating device (6). The heating device (6) is located between the built-in water tank (2) and the water outlet (02).

8. The multi-tank water purifier according to claim 1, characterized in that, The filtration device (1) includes a filtration pipeline (101) and a circulation pipeline (102). The filter pipe (101) includes multiple water purification components (11). The first end of the filter pipe (101) is connected to the water inlet (01), and the second end of the filter pipe (101) is connected to the built-in water tank (2). The circulation pipeline (102) includes a liquid check valve (12) that connects the second end of the filter pipeline (101) to the first end of the filter pipeline (101), so that liquid flows from the second end of the filter pipeline (101) through the circulation pipeline (102) to the first end of the filter pipeline (101).

9. A control method for a multi-tank water purifier, characterized in that, The water purifier includes a filter device (1), a built-in water tank (2), an external water tank (3), and a self-priming pump (5). The water purifier is provided with an inlet (01) and an outlet (02). The filter device (1) is connected between the inlet (01) and the outlet (02). The built-in water tank (2) is connected between the filter device (1) and the outlet (02). The external water tank (3) is connected to the built-in water tank (2) and is detachable. The self-priming pump (5) is located between the inlet (01) and the filter device (1). A first liquid level detection device (21) is provided in the built-in water tank (2), and a second liquid level detection device (31) is provided in the external water tank (3). The method includes: Obtain the first liquid level height value of the built-in water tank (2); If the first liquid level height value is lower than the first threshold, the self-priming pump (5) is turned on, and the built-in water tank (2) and the outlet (02) are connected. If the first liquid level height value is higher than or equal to the first threshold, then the second liquid level height value of the external water tank (3) is obtained; If the second liquid level height value is lower than the second threshold, the self-priming pump (5) is turned on, and the built-in water tank (2) and the external water tank (3) are connected. If the second liquid level height value is higher than or equal to the second threshold, the self-priming pump (5) is turned off, and the built-in water tank (2) and the outlet (02) are connected.

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