Noise reduction control method of closestool and closestool

Abstract

The invention provides a noise reduction control method for a closestool and the closestool. The noise reduction control method comprises the steps that a water pump is controlled to be started and operates for a first preset duration at first operation power; in the time period when the water pump operates at the first operation power for a first preset duration, the shunt valve is controlled to sequentially execute water path switching twice; after the first preset duration is finished, a valve plate of the shunt valve is controlled to deviate towards one side of the brush ring pipeline by a preset distance, and the brush ring pipeline carries out air suction operation for a second preset duration; after the brush ring pipeline completes air suction operation, a valve plate of the shunt valve is controlled to retreat from one side of the brush ring pipeline, and the main flushing pipeline is closed; and after the shunt valve closes the main flushing pipeline, the shunt valve is controlled to be in an operation stopping state. The problems that a vacuum breaker is additionally arranged on an existing closestool to eliminate or reduce air supply noise in a pipeline, a flushing structure of the closestool is complex due to the fact that the vacuum breaker is additionally arranged, the assembly difficulty of the closestool and the production and manufacturing cost of the closestool are increased, and the economical efficiency of the closestool is not facilitated are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bathrooms, and in particular to a noise reduction control method for a toilet and a toilet. Background Art

[0002] When the toilet completes the flushing operation and the water pump is in the off state, the water flow in the pipe is divided into two directions under the action of its own gravity because there is no power driving it. Among them, part of the water flows along the brush ring pipe to the brush ring mouth, and the other part of the water flows along the water outlet pipe to the water tank, thereby causing a cavity to be formed in the water outlet pipe; at the same time, the pressure difference at both ends of the brush ring pipe causes the gas to diffuse from the high-pressure end to the low-pressure end. The gas flow thus formed is referred to as negative pressure suction or negative pressure air replenishment. When the gas flows into the cavity, vibration noise is generated. In addition, if the pressure difference at both ends of the brush ring pipe is greater, the instantaneous air suction volume of the brush ring pipe will be greater, thereby making the air replenishment noise greater. The louder air replenishment noise seriously affects the user's usage experience.

[0003] In the prior art, a vacuum breaker is added in the middle of the pipeline and at the rear end of the water diversion valve to eliminate or reduce the air supply noise in the pipeline. However, the addition of the vacuum breaker makes the flushing system of the toilet more complicated, increases the difficulty of assembling the toilet, and increases the production cost of the toilet, which is not conducive to the economy of the toilet. Summary of the invention

[0004] The main purpose of the present invention is to provide a noise reduction control method for a toilet and a toilet, so as to solve the problem that the toilet in the prior art eliminates or reduces the air supply noise in the pipeline by adding a vacuum breaker, while the addition of the vacuum breaker makes the flushing structure of the toilet complicated, increases the difficulty of assembling the toilet and the production cost of the toilet, which is not conducive to the economy of the toilet.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a noise reduction control method for a toilet is provided, including controlling a water pump to start and run it at a first operating power for a first preset time; during the time period when the water pump runs at the first operating power for the first preset time, controlling the water diverter valve to perform two water path switches in sequence, wherein the water diverter valve closes the brush ring pipe and opens the main flush pipe to perform the first water path switch, and the water diverter valve closes the main flush pipe and opens the brush ring pipe to perform the second water path switch; after the first preset time, the valve plate of the water diverter valve is controlled to be offset toward one side of the brush ring pipe by a preset distance to reduce the air suction gap between the valve plate of the water diverter valve and the inner wall surface of the valve body located on one side of the brush ring pipe, and the brush ring pipe performs an air suction operation for a second preset time; after the brush ring pipe completes the air suction operation, the valve plate of the water diverter valve is controlled to withdraw from one side of the brush ring pipe and close the main flush pipe; after the water diverter valve closes the main flush pipe, the water diverter valve is controlled to be in a stopped operation state.

[0006] Furthermore, when the water diversion valve performs the first water circuit switching to close the brush ring pipeline and open the main flushing pipeline, the main flushing pipeline performs sewage discharge operation.

[0007] Furthermore, the brush ring pipe completes the water sealing operation at least before the first preset time period ends; or, the brush ring pipe completes the water sealing operation at least when the first preset time period ends.

[0008] Furthermore, the second preset time length is shorter than the first preset time length.

[0009] Further, after the first preset time period ends, the water pump operates at the second operating power for a third preset time period, and at least the end time point of the third preset time period is before the stop time point when the water diversion valve is in a stopped operation state.

[0010] Further, the second operating power is less than the first operating power.

[0011] Furthermore, the end time point of the third preset time length is consistent with the start time point of the valve plate of the water diversion valve exiting the brush ring pipeline.

[0012] Furthermore, after the water pump runs at the first operating power for a fourth preset time period, the water inlet valve is controlled to start so that the water inlet valve performs water filling operation in the water tank; wherein, the end time point of the water tank water filling operation is located after the end time point when the valve plate of the water diversion valve is offset toward one side of the brush ring pipe by a preset distance, and the end time point of the water tank water filling operation is located before the start time point when the valve plate of the water diversion valve exits the brush ring pipe; or, the end time point of the water tank water filling operation is located after the end time point when the valve plate of the water diversion valve exits the brush ring pipe.

[0013] Furthermore, the fourth preset time length is shorter than the first preset time length, and the start time point of the water inlet valve is before the execution time point of the water diversion valve performing the first water path switching.

[0014] According to another aspect of the present invention, a toilet is provided, which executes the above-mentioned noise reduction control method. The toilet includes a toilet body, a water pump, a water tank, a brush ring pipe and a main flush pipe, wherein the toilet body has a sewage chamber; the water inlet of the water pump is connected to the drain outlet of the water tank, and the drain outlet of the water pump is connected to the water outlet pipe; the brush ring pipe and the main flush pipe are connected to the water outlet pipe through a water diversion valve, the brush ring pipe is used to spray water onto the wall of the sewage chamber, and the main flush pipe is used to supply water to the sewage chamber.

[0015] Furthermore, the toilet also includes a water inlet valve, which is connected to the water inlet of the water tank to provide water inlet to the water tank.

[0016] By applying the technical solution of the present invention, a noise reduction control method for a toilet is provided, including controlling a water pump to start and run it at a first operating power for a first preset time; during the time period when the water pump runs at the first operating power for the first preset time, controlling the water diverter valve to perform two water path switches in sequence, wherein the water diverter valve closes the brush ring pipe and opens the main flush pipe to perform the first water path switch, and the water diverter valve closes the main flush pipe and opens the brush ring pipe to perform the second water path switch; after the first preset time, the valve plate of the water diverter valve is controlled to be offset toward one side of the brush ring pipe by a preset distance to reduce the air suction gap between the valve plate of the water diverter valve and the inner wall surface of the valve body located on one side of the brush ring pipe, and the brush ring pipe performs an air suction operation for a second preset time; after the brush ring pipe completes the air suction operation, the valve plate of the water diverter valve is controlled to withdraw from one side of the brush ring pipe and close the main flush pipe; after the water diverter valve closes the main flush pipe, the water diverter valve is controlled to be in a stopped operation state.

[0017] By controlling the valve plate of the water diverter valve to offset a preset distance toward one side of the brush ring pipe after the first preset time period, it is helpful to reduce the suction gap between the valve plate of the water diverter valve and the inner wall surface of the valve body located on one side of the brush ring pipe, which is helpful to reduce the instantaneous air suction volume of the brush ring pipe, thereby achieving the purpose of reducing the speed of the air replenishment in the brush ring pipe, and then reducing the noise generated by the air replenishment. Since the present application does not require an additional vacuum breaker, it can ensure the convenience of assembly of the toilet while reducing the production cost of the toilet, which is beneficial to ensure the economy of the toilet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic structural diagram of a toilet flushing system according to an optional embodiment of the present invention is shown;

[0020] Figure 2 Shows Figure 1 A structural diagram of another perspective of the flushing system;

[0021] Figure 3 A logical schematic diagram showing the generation of air-filling noise in a toilet pipe;

[0022] Figure 4 A schematic diagram showing the working sequence of the flushing system of a toilet according to the first embodiment of the present invention is shown;

[0023] Figure 5 Shows Figure 4 A schematic diagram of the state structure corresponding to the working sequence of the flushing system;

[0024] Figure 6 A schematic diagram showing the working sequence of the flushing system of a toilet according to the second embodiment of the present invention is shown;

[0025] Figure 7 Shows Figure 6 A schematic diagram of the state structure corresponding to the working sequence of the flushing system;

[0026] Figure 8 A schematic flow chart of a noise reduction control method for a toilet according to an optional embodiment of the present invention is shown.

[0027] The above drawings include the following reference numerals:

[0028] 1. Gas; 2. Water flow; 3. Cavity;

[0029] 10. Water pump;

[0030] 20. Water diverter valve; 21. Valve plate;

[0031] 30. Brush ring pipe; 40. Main flush pipe; 50. Water inlet valve; 60. Water tank; 70. Water outlet pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to solve the problem that in the prior art, a vacuum breaker is added to eliminate or reduce the air supply noise in the pipeline, but the addition of the vacuum breaker makes the flushing structure of the toilet complicated, increases the difficulty of assembling the toilet and the production cost of the toilet, which is not conducive to the economy of the toilet, the present invention provides a noise reduction control method for a toilet and a toilet.

[0034] like Figure 1 and Figure 2 As shown, the toilet executes the above-mentioned and following noise reduction control methods, and the toilet includes a toilet body, a water pump 10, a water tank 60, a brush ring pipe 30 and a main flush pipe 40, wherein the toilet body has a sewage cavity; the water inlet of the water pump 10 is connected with the drain outlet of the water tank 60, and the drain outlet of the water pump 10 is connected with the water outlet pipe 70; the brush ring pipe 30 and the main flush pipe 40 are connected with the water outlet pipe 70 through the water diversion valve 20, the brush ring pipe 30 is used to spray water onto the cavity wall of the sewage cavity, and the main flush pipe 40 is used to supply water to the sewage cavity.

[0035] Further, the toilet also includes a water inlet valve 50, which is communicated with the water inlet of the water tank 60 to provide water inlet to the water tank 60. In this way, it is ensured that the water tank 60 can be replenished with water in time, thereby ensuring that the water tank 60 can have enough water when flushing next time.

[0036] like Figure 2 As shown, arrow A indicates the direction in which the gas 1 enters the brush ring pipe 30 .

[0037] like Figure 3 As shown in FIG. 4 , it can be seen from FIG. 4 that when the toilet completes the flushing operation and the water pump 10 is in the closed state, the water flow 2 in the brush ring pipe 30 flows in two directions under the action of its own gravity because there is no power driving (refer to FIG. 4 ). Figure 3 b in the figure, arrow B indicates the direction of water flow), wherein a part of the water flow 2 flows along the brush ring pipe 30 to the brush ring mouth, and the other part of the water flow 2 flows along the outlet pipe 70 to the water tank 60, thereby causing a cavity 3 to be generated in the outlet pipe 70; at the same time, due to the pressure difference at both ends of the brush ring pipe 30, the gas 1 diffuses from the high-pressure end to the low-pressure end, and the gas flow thus formed is referred to as negative pressure suction or negative pressure air replenishment. When the gas 1 flows into the cavity 3, vibration noise is generated. In addition, if the pressure difference at both ends of the brush ring pipe 30 is greater, the instantaneous air intake of the brush ring pipe 30 will be greater, thereby making the air replenishment noise greater. The louder air replenishment noise seriously affects the user's experience. It should be noted that in the present application, the magnitude of the siphon force depends on the negative pressure of the pipe. According to Bernoulli's theorem, the generation of negative pressure is related to the speed of water displacement in a closed environment. Bernoulli's equation P+1 / 2ρv 2 +ρgh=C, where P is the pressure at a preset point in the fluid, v is the flow rate of the fluid at the preset point, ρ is the density of the fluid, g is the acceleration of gravity, h is the height of the preset point, and C is a constant. Therefore, the present application proposes the following two embodiments to solve the above technical problems, which are as follows:

[0038] Embodiment 1

[0039] like Figure 4 , Figure 5 , Figure 8As shown, the noise reduction control method for the toilet includes controlling the water pump 10 to start and run it at a first operating power for a first preset time; during the time period when the water pump 10 runs at the first operating power for the first preset time, controlling the water diverter valve 20 to sequentially perform two water path switchings, wherein the water diverter valve 20 closes the brush ring pipe 30 and opens the main flushing pipe 40 to perform the first water path switching, and the water diverter valve 20 closes the main flushing pipe 40 and opens the brush ring pipe 30 to perform the second water path switching; after the first preset time ends, controlling The valve plate 21 of the water diverter valve 20 is offset toward one side of the brush ring pipe 30 by a preset distance to reduce the air suction gap between the valve plate 21 of the water diverter valve 20 and the inner wall surface of the valve body located on one side of the brush ring pipe 30, and the brush ring pipe 30 performs an air suction operation for a second preset time period; after the brush ring pipe 30 completes the air suction operation, the valve plate 21 of the water diverter valve 20 is controlled to withdraw from one side of the brush ring pipe 30 and close the main flushing pipe 40; after the water diverter valve 20 closes the main flushing pipe 40, the water diverter valve 20 is controlled to be in a stopped operating state.

[0040] By controlling the valve plate 21 of the water diverter valve 20 to offset a preset distance toward the side of the brush ring pipe 30 after the first preset time period, it is helpful to reduce the suction gap between the valve plate 21 of the water diverter valve 20 and the inner wall surface of the valve body located on the side of the brush ring pipe 30, which is helpful to reduce the instantaneous air suction volume of the brush ring pipe 30, thereby achieving the purpose of reducing the speed of the air replenishment volume of the brush ring pipe 30, and further reducing the noise generated by the air replenishment. Since the present application does not require an additional vacuum breaker, it can ensure the convenience of assembly of the toilet while reducing the production cost of the toilet, which is beneficial to ensure the economy of the toilet.

[0041] It should be noted that, in the present application, the valve plate 21 of the water diverter valve 20 is controlled by a stepper motor on the water diverter valve 20; the stepper motor is controlled by a main control board in the cover plate.

[0042] It should be noted that in the present application, when the water diverter valve 20 performs the first water circuit switching to close the brush ring pipe 30 and open the main flushing pipe 40, the main flushing pipe 40 performs the sewage discharge operation. In this way, the sewage discharge reliability of the main flushing pipe 40 to the sewage discharge chamber is ensured.

[0043] It should be noted that in the present application, considering that the air replenishing noise will only be generated after the water sealing operation is completed, optionally, the brush ring pipe 30 completes the water sealing operation at least before the end of the first preset time period; or, the brush ring pipe 30 completes the water sealing operation at least when the first preset time period ends.

[0044] It should be noted that in this application, considering that the flushing time of the toilet flushing system is long, while the air replenishment time of the pipeline is short, Figure 4 As shown, the second preset time length is shorter than the first preset time length.

[0045] like Figure 4 As shown, water pump 10: T0→water pump 10 is turned on, T6→water pump 10 is turned off (corresponding to Figure 5 Figure a).

[0046] like Figure 4 As shown, the water diverter valve 20: T0-T2→the water diverter valve 20 does not work, T2-T3→the water diverter valve 20 is controlled to switch the water path (close the brush ring opening), T3-T4→the water diverter valve 20 does not work, T4-T5→the water diverter valve 20 is controlled to switch the water path (close the main flushing port), T8-T9→the water diverter valve 20 is controlled to switch the water path, (the valve piece is switched to the brush ring opening to form a control gap) (corresponding to Figure 5 Figure b), T9-T10 → water diversion valve 20 does not work (corresponding to Figure 5 Figure c), T10-T11 → control the water diversion valve 20 to switch the water path (close the main flushing port) (corresponding to Figure 5 In Figure d), T11→water diverter valve 20 stops working.

[0047] like Figure 4 As shown, the water inlet valve 50: T0-T1→the water inlet valve 50 does not work, T1-T7→the water inlet valve 50 lets water in, T7→the water inlet valve 50 stops letting water in.

[0048] Embodiment 2

[0049] like Figures 6 to 8 As shown, after the first preset time period ends, the water pump 10 operates at the second operating power for the third preset time period, and at least the end time point of the third preset time period is before the stop time point when the water diverter valve 20 is in the stopped operation state. The second operating power is less than the first operating power. In this way, by controlling the working sequence of the water pump 10, the water pump 10 continues to operate at a low speed after the water seal is completed, which is conducive to raising the water level in the water outlet pipe 70, thereby reducing the volume of the cavity 3, and then reducing the air intake of the brush ring pipe 30, thereby achieving the purpose of noise reduction.

[0050] like Figure 6 As shown, the end time point of the third preset time length is consistent with the start time point of the valve plate 21 of the water diversion valve 20 exiting the brush ring pipeline 30 .

[0051] It should be noted that in this application, due to the fluctuation of the flushing water volume and the municipal water inlet pressure of the water inlet valve 50, the water replenishment time of the water inlet valve 50 is different. The time point T7 is after T9, and may be before T10 or after T11. Figure 6As shown, after the water pump 10 runs at the first operating power for a fourth preset time period, the water inlet valve 50 is controlled to start so that the water inlet valve 50 performs a water tank water filling operation; wherein, the end time point of the water tank water filling operation is located after the end time point when the valve plate 21 of the water diverter valve 20 is offset toward the side of the brush ring pipe 30 by a preset distance, and the end time point of the water tank water filling operation is located before the start time point when the valve plate 21 of the water diverter valve 20 exits the brush ring pipe 30; or, the end time point of the water tank water filling operation is located after the end time point when the valve plate 21 of the water diverter valve 20 exits the brush ring pipe 30.

[0052] like Figure 6 As shown, the fourth preset time length is shorter than the first preset time length, and the start time point of the water inlet valve 50 is before the execution time point of the water diversion valve 20 executing the first water path switching.

[0053] like Figure 6 As shown, water pump 10: T0 → water pump 10 is turned on (refer to Figure 7 In figure a), T6-T10→water pump 10 reduces speed and keeps working, T10→water pump 10 turns off.

[0054] like Figure 6 As shown, the water diverter valve 20: T0-T2→the water diverter valve 20 does not work, T2-T3→the water diverter valve 20 is controlled to switch the water path (close the upper brush ring opening), T3-T4→the water diverter valve 20 does not work, T4-T5→the water diverter valve 20 is controlled to switch the water path (close the lower main flushing port), T8-T9→the water diverter valve 20 is controlled to switch the water path, (the valve plate is switched to the upper brush ring opening to form a control gap) (refer to Figure 7 Figure b), T9-T10 → water diverter valve 20 does not work (refer to Figure 7 Figure c), T10-T11→control the water diversion valve 20 to switch the water path (close the lower main flushing port), T11→the water diversion valve 20 stops working.

[0055] like Figure 6 As shown, water inlet valve 50: T0-T1→water inlet valve 50 does not work, T1-T7→water inlet valve 50 lets water in, T7→water inlet valve stops letting water in, T11-T7 can refer to Figure 7 Figure d in .

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0060] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for controlling noise reduction of a toilet, characterized in that: include: Controlling the water pump (10) to start and operate at a first operating power for a first preset time period; During a time period in which the water pump (10) operates at the first operating power for the first preset time period, the water diversion valve (20) is controlled to sequentially perform two water circuit switching operations, wherein the water diversion valve (20) closes the brush ring pipe (30) and opens the main flushing pipe (40) to perform the first water circuit switching operation, and the water diversion valve (20) closes the main flushing pipe (40) and opens the brush ring pipe (30) to perform the second water circuit switching operation; After the first preset time period has expired, the valve plate (21) of the water diversion valve (20) is controlled to be offset by a preset distance toward one side of the brush ring pipe (30) so as to reduce the air suction gap between the valve plate (21) of the water diversion valve (20) and the inner wall surface of the valve body located on one side of the brush ring pipe (30), and the brush ring pipe (30) performs an air suction operation for a second preset time period; After the brush ring pipe (30) completes the air suction operation, the valve plate (21) of the water diversion valve (20) is controlled to withdraw from one side of the brush ring pipe (30) and close the main flushing pipe (40); After the water diversion valve (20) closes the main flushing pipeline (40), the water diversion valve (20) is controlled to be in a stopped operation state.

2. The noise reduction control method according to claim 1, characterized in that: When the water diversion valve (20) performs the first water circuit switching to close the brush ring pipeline (30) and open the main flushing pipeline (40), the main flushing pipeline (40) performs a sewage discharge operation.

3. The noise reduction control method according to claim 1, characterized in that: At least before the first preset time period ends, the brush ring pipe (30) completes the water sealing operation; or, At least when the first preset time period ends, the brush ring pipe (30) completes the water sealing operation.

4. The noise reduction control method according to claim 1, characterized in that: The second preset time length is shorter than the first preset time length.

5. The noise reduction control method according to claim 1, characterized in that: After the first preset time period ends, the water pump (10) operates at the second operating power for a third preset time period, and at least the end time point of the third preset time period is before the stop time point when the water diversion valve (20) is in a stopped operation state.

6. The noise reduction control method according to claim 5, characterized in that: The second operating power is less than the first operating power.

7. The noise reduction control method according to claim 5, characterized in that: The end time point of the third preset time length is consistent with the start time point of the valve plate (21) of the water diversion valve (20) exiting the brush ring pipeline (30).

8. The noise reduction control method according to any one of claims 1 to 7, characterized in that: After the water pump (10) operates at the first operating power for a fourth preset time period, the water inlet valve (50) is controlled to start, so that the water inlet valve (50) performs a water tank water filling operation; The end time point of the water tank water filling operation is located after the end time point of the valve plate (21) of the water diversion valve (20) being offset toward the side of the brush ring pipe (30) by a preset distance, and the end time point of the water tank water filling operation is located before the start time point of the valve plate (21) of the water diversion valve (20) exiting the brush ring pipe (30); or, The end time point of the water tank water filling operation is located after the end time point of the valve plate (21) of the water diversion valve (20) exiting the brush ring pipeline (30).

9. The noise reduction control method according to claim 8, characterized in that: The fourth preset time length is shorter than the first preset time length, and the start time point of the water inlet valve (50) is before the execution time point of the water diversion valve (20) performing the first water circuit switching.

10. A toilet, characterized in that: The toilet implements the noise reduction control method according to any one of claims 1 to 9, and the toilet comprises: A toilet body, the toilet body having a sewage discharge cavity; A water pump (10) and a water tank (60), wherein the water inlet of the water pump (10) is in communication with the water outlet of the water tank (60), and the water outlet of the water pump (10) is in communication with a water outlet pipe (70); A brush ring pipe (30) and a main flushing pipe (40), wherein the brush ring pipe (30) and the main flushing pipe (40) are connected to the water outlet pipe (70) via a water diversion valve (20), the brush ring pipe (30) is used to spray water onto the wall surface of the sewage discharge chamber, and the main flushing pipe (40) is used to supply water to the sewage discharge chamber.

11. The toilet according to claim 10, characterized in that: The toilet also includes: A water inlet valve (50), the water inlet valve (50) being in communication with a water inlet of the water tank (60) so as to provide water inlet to the water tank (60).

Images