Intelligent toilet lid waterway structure with descaling function

Abstract

The utility model discloses an intelligent toilet lid waterway structure with a descaling function, which comprises a water inlet electromagnetic valve module, a cleaning water tank module, an instant heating module, a reversing valve and a cleaning module which are sequentially connected from upstream to downstream, and further comprises a two-way switching valve, a three-way valve and a descaling liquid tank, the two-way switching valve is connected between the water inlet electromagnetic valve module and the cleaning water tank module, the three-way valve is connected between the cleaning water tank module and the instant heating module, and the descaling liquid tank is connected between the two-way switching valve and the three-way valve. During descaling, water flow is communicated with the descaling liquid tank through the two-way switching valve, then enters the instant heating module along the three-way valve, and finally is sprayed out of the cleaning module under the guidance of the reversing valve, so that the descaling operation on the instant heating module, the reversing valve and the cleaning module is realized. And after descaling is finished, the two-way switching valve is switched to be communicated with the cleaning water tank module, and descaling water remaining in the pipeline before can be discharged through a self-cleaning water nozzle of the cleaning module, so that direct contact with a human body is avoided.

Description

Technical Field

[0001] This utility model relates to the water circuit structure of an intelligent toilet seat, and in particular to the water circuit structure of an intelligent toilet seat with a descaling function. Background Technology

[0002] The higher the water hardness, the easier it is for limescale to form. Generally, electronic toilet seats use hot water for washing, and when not in use, calcium and magnesium ions in the water easily crystallize to form limescale. Furthermore, the higher the water hardness, the higher the heating temperature, and the longer the heating time, the faster and larger the limescale formation. Those skilled in the art know that electronic toilet seats, in addition to the water tank assembly (including the washing tank), usually also have instant heating, sterilization, and washing components. Limescale easily forms in the water path from the instant heating component to the washing component. Limescale adheres to the water pipes, heating element, and the washing nozzle outlet, and over time, it affects the washing water volume and cleaning effect. Therefore, it is necessary to regularly descale the water tank by adding descaling solution. However, because descaling solution is added to the washing tank, some descaling solution remains in the tank components after descaling. When used normally for subsequent washing, this residual descaling solution comes into contact with the human body. Utility Model Content

[0003] This utility model provides a smart toilet seat water circuit structure with descaling function, preventing descaling liquid residue from remaining in the cleaning tank, thus overcoming the shortcomings of the prior art. The technical solution adopted by this utility model to solve its technical problem is as follows:

[0004] The water circuit structure of the smart toilet seat with descaling function includes, from upstream to downstream, an inlet solenoid valve module, a cleaning water tank module, an instant heating module, a reversing valve, and a cleaning module. The cleaning module includes a self-cleaning nozzle, a bidet nozzle, and a feminine wash nozzle. Water flow is selectively connected to the self-cleaning nozzle, the bidet nozzle, or the feminine wash nozzle via the reversing valve. It also includes a two-way switching valve, a three-way valve, and a descaling liquid tank. The two-way switching valve is connected between the inlet solenoid valve module and the cleaning water tank module, and the three-way valve is connected to the... Between the cleaning water tank module and the instant heating module, the descaling liquid tank is connected between the two-way switching valve and the three-way valve. The three-way valve includes a first water inlet connected to the cleaning water tank module, a second water inlet connected to the descaling liquid tank, and a water outlet connected to the instant heating module. When water flows in from the first water inlet, the second water inlet is closed, and when water flows in from the second water inlet, the first water inlet is closed. The water flow is selectively connected to the cleaning water tank module or the descaling liquid tank through the two-way switching valve.

[0005] In a preferred embodiment, the system further includes a circulating water tank and an air pump module connected sequentially between the descaling liquid tank and the three-way valve, with the water flow selected by the reversing valve to connect or disconnect the circulating water tank.

[0006] In a preferred embodiment: the descaling solution tank is connected to a Venturi injector, and the descaling solution tank is connected to the water circuit through the Venturi injector.

[0007] In a preferred embodiment: the three-way valve includes a valve body and a valve core. A first inlet, a second inlet, and an outlet are disposed on the valve body. The first inlet and the second inlet are aligned in a straight line. The valve core is linearly movable within the valve body. When water enters the first inlet, the water flow pushes the valve core to close the second inlet. When water enters the second inlet, the water flow pushes the valve core to close the first inlet.

[0008] In a preferred embodiment: a first spring is provided between the valve core and the first water inlet, and a second spring is provided between the valve core and the second water inlet.

[0009] In a preferred embodiment: the valve core is provided with a first guide post extending toward the first water inlet, and the first spring is sleeved on the first guide post; the valve core is provided with a second guide post extending toward the second water inlet, and the second spring is sleeved on the second guide post.

[0010] In a preferred embodiment, a filter is also included, which is connected upstream of the inlet solenoid valve module.

[0011] In a preferred embodiment, a filter is also included, which is connected between the inlet solenoid valve module and the two-way switching valve.

[0012] In a preferred embodiment: the cleaning module includes a cleaning water tank and a water pump connected in sequence.

[0013] In a preferred embodiment, a sterilization module is also included, which is connected between the instant heating module and the reversing valve.

[0014] Compared with the prior art, this technical solution has the following advantages:

[0015] 1. A two-way switching valve is installed upstream of the cleaning module, and a three-way valve with only one inlet is installed upstream of the instant heating module to control the water flow to either the cleaning module or the descaling tank. During normal use, water flows through the two-way switching valve to the cleaning tank module, then through the three-way valve to the instant heating module, and finally exits from the cleaning module under the guidance of the reversing valve. When descaling is required, water flows through the two-way switching valve to the descaling tank, then through the three-way valve to the instant heating module, and finally exits from the cleaning module under the guidance of the reversing valve, thus performing descaling operations on the instant heating module, the reversing valve, and the cleaning module. After descaling is complete, the two-way switching valve switches back to the cleaning tank module. When normal cleaning is activated, any remaining descaling water in the pipeline is discharged through the self-cleaning nozzle of the cleaning module, preventing direct contact with the human body and ensuring user safety.

[0016] 2. By adding a circulating water tank and an air pump module between the scale tank and the three-way valve, during descaling, the reversing valve connects to the circulating water tank. Driven by the air pump module, the water flows repeatedly between the circulating water tank, the three-way valve, the instant heating module, and the reversing valve, improving the descaling effect. Finally, the reversing valve connects to the cleaning module, and the descaling water is discharged.

[0017] 3. The descaling solution tank is connected to the water circuit via a Venturi injector. During descaling, the descaling solution can be added evenly to the water circuit, improving the stability of the descaling effect.

[0018] 4. The first and second inlets of the three-way valve are aligned in a straight line. The impact of the water flow can close the inlets facing the opposite direction of the water flow, resulting in a simple structure.

[0019] 5. The sterilization module is a UVC sterilization module, and the sterilization module is descaled at the same time during descaling. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 A connection structure diagram of the first embodiment of the water circuit structure of an intelligent toilet seat with descaling function is shown.

[0022] Figure 2 It is illustrated Figure 1 The internal structure diagram of the three-way valve.

[0023] Figure 3 It is illustrated Figure 1 The diagram shows the three-way valve opening the first inlet nozzle.

[0024] Figure 4 It is illustrated Figure 1 The diagram shows the three-way valve opening the second inlet.

[0025] Figure 5 It is illustrated Figure 1 The diagram shows the water flow path during cleaning of a smart toilet seat with descaling function.

[0026] Figure 6 It is illustrated Figure 1 The diagram shows the water path of a smart toilet seat with descaling function during the descaling process.

[0027] Figure 7 A connection structure diagram of the second embodiment of the water circuit structure of an intelligent toilet seat with descaling function is shown.

[0028] Figure 8 It is illustrated Figure 7The diagram shows the water path of a smart toilet seat with descaling function during the descaling process.

[0029] Figure 9 It is illustrated Figure 7 The diagram shows another water path for a smart toilet seat with descaling function during descaling.

[0030] Figure 10 A connection structure diagram of the third embodiment of the water circuit structure of an intelligent toilet seat with descaling function is shown. Detailed Implementation

[0031] Example 1

[0032] Please refer to Figure 1 The intelligent toilet seat with descaling function has a water circuit structure including an inlet solenoid valve module 10, a cleaning water tank module 20, an instant heating module 30, a reversing valve 40, and a cleaning module 50 connected sequentially from upstream to downstream. The cleaning module 50 includes a self-cleaning nozzle, a bidet nozzle, and a feminine wash nozzle. Water flow is selectively connected to the self-cleaning nozzle, the bidet nozzle, or the feminine wash nozzle via the reversing valve 40. It also includes a two-way switching valve 60, a three-way valve 70, and a descaling liquid tank 80. The two-way switching valve 60 is connected between the inlet solenoid valve module 10 and the cleaning water tank module 20. The three-way valve 70 is connected between the cleaning water tank module 20 and the instant heating module 30. The descaling liquid tank 80 is connected between the two-way switching valve 60 and the three-way valve 70. Figures 2 to 4 As shown, the three-way valve 70 includes a first inlet 71 connected to the cleaning water tank module 20, a second inlet 72 connected to the descaling liquid tank 80, and an outlet 73 connected to the instant heating module 30. When water flows into the first inlet 71, the second inlet 72 is closed; when water flows into the second inlet 72, the first inlet 71 is closed. The water flow is selectively connected to either the cleaning water tank module 20 or the descaling liquid tank 80 via the two-way switching valve 60.

[0033] Please refer to Figure 1 and Figure 5 In use, municipal water is supplied to the inlet solenoid valve module 10. When the toilet seat is in normal use, the two-way switching valve 60 connects to the cleaning water tank module 20. Water flows sequentially through the inlet solenoid valve module 10, the two-way switching valve 60, the cleaning water tank module 20, the three-way valve 70 (water flows in through the first inlet nozzle 71 and out through the outlet nozzle 73), the instant heating module 30, the reversing valve 40, and the cleaning module 50 (water exits from the self-cleaning faucet, the bidet faucet, or the feminine wash faucet, depending on the reversing valve selection). Figure 6As shown, when the toilet seat needs descaling, the two-way switching valve 60 switches to connect to the descaling liquid tank 80. Water flows sequentially through the inlet solenoid valve module 10, the two-way switching valve 60, the descaling liquid tank 80, the three-way valve 70 (water flows in through the second inlet nozzle 72 and out through the outlet nozzle 73), the instant heating module 30, the reversing valve 40, and the cleaning module 50 (water flows out from the self-cleaning nozzle, the bidet nozzle, or the feminine wash nozzle, or alternately, depending on the reversing valve selection). After descaling is completed, the two-way switching valve 60 switches back to connect to the cleaning water tank module 20. Therefore, during normal use of the toilet seat in self-cleaning mode, the residual descaling water in the instant heating module 30, the reversing valve 40, and the cleaning module 50 will first be discharged from the self-cleaning nozzle, or in the early stages of the cleaning module's activation, such as before the spray bar has fully extended, the residual descaling water will be discharged beforehand. Therefore, during the entire descaling process, the descaling solution will not mix into the cleaning water tank module 20, and the descaling solution will not come into contact with the human body during normal use.

[0034] Please refer to Figures 2 to 4 Preferably, the three-way valve 70 includes a valve body 70-1 and a valve core 70-2. A first inlet 71, a second inlet 72, and an outlet 73 are disposed on the valve body 70-1. The first inlet 71 and the second inlet 72 are linearly aligned. The valve core 70-2 is linearly movable within the valve body 70-1. When water enters the first inlet 71, the water flow can push the valve core 70-2 to move and close the second inlet 72. Conversely, if water enters the second inlet 72, the water flow pushes the valve core to close the first inlet 71.

[0035] More preferably, a first spring 74 is provided between the valve core 70-2 and the first water inlet 71, and a second spring 75 is provided between the valve core 70-2 and the second water inlet 72.

[0036] More preferably, the valve core 70-2 is provided with a first guide post 76 extending towards the first water inlet, and the first spring 74 is sleeved on the first guide post 76. The valve core is also provided with a second guide post 77 extending towards the second water inlet, and the second spring 75 is sleeved on the second guide post 77. Therefore, when water flows into the valve body 70-1, it will push the valve core 70-2 to move against the elastic force of the opposing spring and finally close the opposing water inlet.

[0037] Preferably, the system also includes a filter 90, which is connected upstream of the inlet solenoid valve module 10. Municipal water enters through the filter 90 before entering the inlet solenoid valve module 10. Understandably, the filter 90 can also be connected downstream of the inlet solenoid valve module 10, i.e., between the inlet solenoid valve module 10 and the two-way switching valve 60.

[0038] Preferably, the cleaning module 20 includes a cleaning water tank 20-1 and a water pump 20-2 connected in sequence. The water pump can draw water from the cleaning water tank. Of course, the water pressure of the municipal water supply can also drive the water flow after it is turned on.

[0039] Preferably, it further includes a sterilization module 100, which is connected between the instant heating module 30 and the reversing valve 40.

[0040] Example 2

[0041] Please refer to Figures 7 to 9 The difference between Embodiment 2 and Embodiment 1 is that the water circuit structure of the smart toilet seat with descaling function also includes a circulating water tank 110 and an air pump module 120 connected sequentially between the descaling liquid tank 80 and the three-way valve 70. Water flow is controlled by the reversing valve 40 to select whether to connect or disconnect the circulating water tank 110. During descaling, water flows from the descaling liquid tank 80 into the circulating water tank 110, and under the drive of the air pump module 120, it enters the instant heating module 30 and the sterilization module 100 via the three-way valve 70. If the reversing valve 40 connects the circulating water tank 110, the descaling water flows into the circulating water tank 110, forming a circulating descaling process. Figure 9 As shown. After a certain number of descaling cycles, the reversing valve 40 switches to the cleaning module 50, and the descaling water flows to the cleaning module 50 and is discharged from the self-cleaning faucet, the bidet faucet, or the feminine wash faucet.

[0042] Example 3

[0043] Please refer to Figure 10 The difference between Embodiment 3 and Embodiment 1 is that the descaling liquid tank 80 is connected to the Venturi injector 130, and the descaling liquid tank 80 is connected to the water circuit through the Venturi injector 130. That is to say, during descaling, the water flows through the Venturi injector 130 and automatically carries the liquid in the descaling liquid tank 80 into the water circuit.

[0044] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A smart toilet cover waterway structure with a descaling function, comprising, from upstream to downstream, a water inlet electromagnetic valve module, a cleaning water tank module, an instant heating module, a reversing valve, and a cleaning module, the cleaning module comprising a self-cleaning water nozzle, a hip washing water nozzle, and a female washing water nozzle, and water flow is selected to be connected to the self-cleaning water nozzle, or the hip washing water nozzle, or the female washing water nozzle through the reversing valve. It also includes a two-way switch valve, a three-way valve, a descaling liquid tank, the two-way switch valve is connected between the water inlet electromagnetic valve module and the cleaning water tank module, the three-way valve is connected between the cleaning water tank module and the instant heating module, the descaling liquid tank is connected between the two-way switch valve and the three-way valve, the three-way valve includes a first water inlet nozzle connected with the cleaning water tank module, a second water inlet nozzle connected with the descaling liquid tank and a water outlet nozzle connected with the instant heating module, when water flows from the first water inlet nozzle, the second water inlet nozzle is closed, when water flows from the second water inlet nozzle, the first water inlet nozzle is closed, water flow is selected to connect the cleaning water tank module or the descaling liquid tank through the two-way switch valve.

2. The intelligent toilet cover waterway structure with a descaling function according to claim 1, characterized in that: It also includes a circulating water tank and an air pump module connected between the descaling liquid tank and the three-way valve in sequence, whether to connect the circulating water tank is selected through the reversing valve.

3. The intelligent toilet cover waterway structure with descaling function according to claim 1, characterized in that: The descaling liquid tank is connected to the waterway through the Venturi ejector.

4. The intelligent toilet cover waterway structure with a descaling function according to claim 1, characterized in that: The three-way valve includes a valve body and a valve core, the first water inlet nozzle, the second water inlet nozzle and the water outlet nozzle are arranged on the valve body, the first water inlet nozzle and the second water inlet nozzle are linearly aligned, the valve core is linearly movably arranged in the valve body, the first water inlet nozzle is water inlet, the water flow pushes the valve core to close the second water inlet nozzle, the second water inlet nozzle is water inlet, the water flow pushes the valve core to close the first water inlet nozzle.

5. The smart toilet cover waterway structure with descaling function according to claim 4, characterized in that: The first spring is arranged between the valve core and the first water inlet nozzle, and the second spring is arranged between the valve core and the second water inlet nozzle.

6. The smart toilet cover waterway structure with descaling function according to claim 5, characterized in that: The valve core is provided with a first guide column extending to the first water inlet nozzle, the first spring is sleeved on the first guide column, the valve core is provided with a second guide column extending to the second water inlet nozzle, and the second spring is sleeved on the second guide column.

7. The smart toilet cover waterway structure with descaling function according to claim 1, characterized in that: It also includes a filter connected upstream of the water inlet electromagnetic valve module. 8.The waterway structure of a smart toilet lid with a descaling function according to claim 1, characterized in that: It also includes a filter connected between the water inlet electromagnetic valve module and the two-way switch valve. 9.The waterway structure of a smart toilet lid with a descaling function according to claim 1, characterized in that: The cleaning module includes a cleaning water tank and a water suction pump connected in sequence. 10.The waterway structure of a smart toilet lid with a descaling function according to claim 1, characterized in that: It also includes a sterilization module connected between the instant heating module and the reversing valve.

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