Low-noise control valve group

Abstract

The utility model relates to the technical field of closestools, and provides a low-noise control valve bank which comprises a water pump, a control valve, a first water outlet channel and a second water outlet channel, the water pump communicates with an external water source, and the water pump, the first water outlet channel and the second water outlet channel all communicate with the control valve; the control valve controls opening and closing of the first water outlet channel and the second water outlet channel. In the set time when the water pump is started, the control valve opens the first water outlet channel and the second water outlet channel, and the power of the water pump is gradually increased to target power, so that water in the first water outlet channel and the second water outlet channel is slowly discharged; and air in the first water outlet channel and the second water outlet channel is slowly extruded out. Therefore, the noise generated when the control valve group is started can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of toilet, in particular to a low-noise control valve group. BACKGROUND

[0002] The control valve group of toilet is the key component to control the water flow in and out and direction, which is usually composed of water inlet, water outlet, control valve and other additional components. The control valve group plays a vital role in the flushing process. However, these valve groups often produce a large noise when starting.

[0003] Therefore, the present application studies a low-noise control valve group to achieve the effect of reducing noise. CONTENT OF THE INVENTION

[0004] In order to reduce the noise when the control valve group starts, the present application provides a low-noise control valve group.

[0005] The present application provides a low-noise control valve group, which adopts the following technical solution:

[0006] A low-noise control valve group, comprising a water pump, a control valve, a first water outlet channel and a second water outlet channel, the water pump is connected with external water source, the water pump, the first water outlet channel and the second water outlet channel are all connected with the control valve, the control valve controls the opening and closing of the first water outlet channel and the second water outlet channel; within the set time when the water pump is started, the control valve opens the first water outlet channel and the second water outlet channel, and the power of the water pump gradually increases to the target power, so that the water in the first water outlet channel and the second water outlet channel is slowly discharged, and the air in the first water outlet channel and the second water outlet channel is slowly squeezed out.

[0007] By adopting the above technical solution, in the set initial stage, the power of the water pump gradually increases to the target power, rather than instantaneously reaches the maximum value, so that the water flow speed gradually increases, avoiding the impact noise caused by the sudden acceleration of water flow. At the same time, with the gradual increase of the power of the water pump, the water in the first water outlet channel and the second water outlet channel begins to be slowly discharged, and in this process, the air in the channel is also slowly squeezed out, avoiding the noise caused by the rapid compression or release of air, so as to achieve the effect of reducing noise when the control valve group is opened.

[0008] Optionally, the water pump is started for 0-T1 time stage, the control valve opens the first water outlet channel and partially opens the second water outlet channel, and the power of the water pump gradually increases to the target power;

[0009] The water pump is started for T1-T2 time stage, the control valve opens the first water outlet channel and the second water outlet channel, and the power of the water pump is constant at the target power;

[0010] In the T2-T3 time period, the water pump is gradually reduced or directly closed from the target power, and the control valve is closed or partially closed.

[0011] By adopting the above technical scheme, in the 0-T1 time period, the power of the water pump is gradually increased to the target power, the water flow can slowly flow out from the first water outlet channel and the second water outlet channel, and the air in the first water outlet channel and the second water outlet channel is discharged, so as to avoid the noise caused by the sudden acceleration of the water flow; in the T1-T2 time period, the power of the water pump is constant at the target power, the water pump is kept in a stable operation state, and the two water outlet channels are completely opened, so that the water flow in the first water outlet channel and the second water outlet channel can also completely discharge the air in the first water outlet channel and the second water outlet channel, thereby avoiding the noise; in the T2-T3 time period, the second water outlet channel is closed or partially closed first, and then the water pump is closed or gradually reduced from the target power, so as to reduce the noise possibly generated when the water flow suddenly stops.

[0012] Optionally, in the 0-T1 time period, the gradually increasing of the power of the water pump to the target power includes one or a combination of linear change, step change and curve change.

[0013] By adopting the above technical scheme, the working power of the water pump is controlled to change linearly, that is, the relationship between the working power of the water pump and time is expressed as a first-order function, or the working power of the water pump is controlled to change nonlinearly, that is, the relationship between the working power of the water pump and time is expressed as a second-order function or a segmented change, so that the water flow can slowly flow out from the first water outlet channel and the second water outlet channel, and the air in the first water outlet channel and the second water outlet channel is discharged, thereby avoiding the noise caused by the sudden acceleration of the water flow.

[0014] Optionally, the control valve is a switching valve, the switching valve includes a switching cavity and a switching piece movably arranged in the switching cavity, when the switching piece is in the first position, the switching piece opens the first water outlet channel and partially opens the second water outlet channel, and when the switching piece is in the second position, the first water outlet channel and the second water outlet channel are both completely opened.

[0015] Optionally, when the switching piece is in the first position, the switching piece is misaligned with the inlet end of the second water outlet channel to partially open the second water outlet channel, and when the switching piece is in the second position, the switching piece moves to a position corresponding to the wall of the switching cavity to completely open the first water outlet channel and the second water outlet channel.

[0016] Optionally, a connecting channel is further arranged, the connecting channel is communicated with the first water outlet channel and the second water outlet channel, when the switching piece is in the first position, the switching piece covers the second water outlet channel, the switching piece opens the first water outlet channel, and the first water outlet channel is communicated with the second water outlet channel through the connecting channel; when the switching piece is in the second position, the first water outlet channel and the second water outlet channel are both completely opened.

[0017] Optionally, the connecting channel is arranged through the switching piece.

[0018] Optionally, the first water outlet channel is a flushing water path of the closestool, and the second water outlet channel is a main flushing water path of the closestool.

[0019] Optionally, the water pump is communicated with a water tank, and the water pump draws water in the water tank to the control valve.

[0020] In summary, the present application has at least one of the following beneficial technical effects:

[0021] 1. In the initial stage, the power of the water pump gradually increases to the target power, instead of reaching the maximum value instantaneously, so that the water flow speed gradually increases, avoiding the impact noise caused by the sudden acceleration of the water flow. At the same time, with the gradual increase of the power of the water pump, the water in the first water outlet channel and the second water outlet channel begins to slowly drain, and in this process, the air in the channel is also slowly squeezed out, avoiding the noise caused by the rapid compression or release of air, thereby achieving the effect of reducing noise when the control valve group is opened.

[0022] 2. In the 0-T1 stage, the power of the water pump gradually increases to the target power, and the water flow can slowly flow out of the first water outlet channel and the second water outlet channel, and the air in the first water outlet channel and the second water outlet channel is discharged, avoiding the noise caused by the sudden acceleration of the water flow; in the T1-T2 stage, when the target power is stable, the two water outlet channels are completely opened at the same time, and the water pump is kept in a stable operating state to avoid noise; in the T2-T3 stage, the second water outlet channel is closed or partially closed first, and then the water pump is closed or the power of the water pump gradually decreases from the target power, reducing the noise that may be generated when the water flow suddenly stops.

[0023] 3. By controlling the working power of the water pump to change linearly, i.e., expressing the relationship between the working power of the water pump and time as a linear function, or controlling the working power of the water pump to change nonlinearly, i.e., expressing the relationship between the working power of the water pump and time as a quadratic function or a segmented function, the water flow can slowly flow out of the first water outlet channel and the second water outlet channel, and the air in the first water outlet channel and the second water outlet channel is discharged, avoiding the noise caused by the sudden acceleration of the water flow. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1is a structural schematic diagram of a low-noise control valve group according to an embodiment of the present application;

[0025] Figure 2 is a cross-sectional schematic diagram of a low-noise control valve group according to an embodiment of the present application, showing the switching piece in the first position;

[0026] Figure 3 is a cross-sectional schematic diagram of a low-noise control valve group according to an embodiment of the present application, showing the switching piece in the second position;

[0027] Figure 4 is a cross-sectional schematic diagram of a low-noise control valve group according to an embodiment of the present application, showing the switching piece with a connection channel and in the first position;

[0028] Figure 5 is a change process coordinate graph of a low-noise control valve group according to an embodiment of the present application, showing that 0-T1 is a segmented change in 0-T3 when the water pump is turned on;

[0029] Figure 6 is a change process coordinate graph of a low-noise control valve group according to an embodiment of the present application, showing that 0-T1 is a linear change in 0-T3 when the water pump is turned on;

[0030] Figure 7 is a change process coordinate graph of a low-noise control valve group according to an embodiment of the present application, showing that 0-T1 is a curve change in 0-T3 when the water pump is turned on, part 1;

[0031] Figure 8 is a change process coordinate graph of a low-noise control valve group according to an embodiment of the present application, showing that 0-T1 is a curve change in 0-T3 when the water pump is turned on, part 2.

[0032] Reference signs: 1, water pump; 2, switching piece; 3, first water outlet channel; 4, second water outlet channel; 5, connection channel. DETAILED DESCRIPTION

[0033] The following will be described in detail below with reference to the accompanying drawings Figures 1-4 The present application will be further described in detail.

[0034] The present application discloses a low-noise control valve group. Referring to Figure 1A low-noise control valve group includes a water pump 1, a control valve, a first water outlet channel 3 and a second water outlet channel 4. The water pump 1 is connected to an external water source. The water pump 1, the first water outlet channel 3 and the second water outlet channel 4 are all connected to the control valve. The control valve controls the opening and closing of the first water outlet channel 3 and the second water outlet channel 4. During a set time when the water pump 1 is turned on, the control valve opens the first water outlet channel 3 and the second water outlet channel 4. The power of the water pump 1 gradually increases to a target power. Instead of reaching the maximum value instantaneously, the power of the water pump 1 gradually increases to the target power, so that the water flow gradually accelerates, avoiding the impact noise caused by the sudden acceleration of the water flow.

[0035] The slow discharge of water from the first water outlet channel 3 and the second water outlet channel 4 causes the air in the first water outlet channel 3 and the second water outlet channel 4 to be slowly squeezed out. As the power of the water pump 1 gradually increases, the water in the first water outlet channel 3 and the second water outlet channel 4 begins to be slowly discharged. During this process, the air in the channel is also slowly squeezed out, avoiding the noise caused by the rapid compression or release of air, thereby achieving the effect of reducing noise when the control valve group is opened.

[0036] In some embodiments, during a 0-T1 time period when the water pump 1 is turned on, the control valve opens the first water outlet channel 3 and partially opens the second water outlet channel 4. The power of the water pump 1 is gradually increased to a target power. Gradually increasing the power of the water pump 1 avoids the noise caused by the sudden acceleration of the water flow.

[0037] During a T1-T2 time period when the water pump 1 is turned on, the control valve fully opens the first water outlet channel 3 and the second water outlet channel 4. The power of the water pump 1 is the target power. When the power is stable, both water outlet channels are opened at the same time, keeping the water pump 1 in a stable operating state to avoid noise.

[0038] During a T2-T3 time period when the water pump 1 is turned on, the control valve closes or partially closes the second water outlet channel 4. The power of the water pump 1 gradually decreases from the target power or is directly turned off. The second water outlet channel 4 is closed first, and then the water pump 1 is turned off, reducing the noise that may be generated when the water flow suddenly stops.

[0039] Reference Figures 5 to 8 In some embodiments, during a 0-T1 time period when the water pump 1 is turned on, the gradual increase of the power of the water pump 1 to the target power includes one or a combination of linear change, step change and curve change. By controlling the working power of the water pump 1 to change linearly, i.e. representing the relationship between the working power of the water pump 1 and time as a first-order function, or controlling the working power of the water pump 1 to change nonlinearly, i.e. representing the relationship between the working power of the water pump 1 and time as a second-order function or a segmented change, the water flow can be slowly discharged from the first water outlet channel 3 and the second water outlet channel 4, and the air in the first water outlet channel 3 and the second water outlet channel 4 can be discharged, avoiding the noise caused by the sudden acceleration of the water flow.

[0040] Referring again Figure 2 and Figure 3 In some embodiments, the control valve is a switching valve.

[0041] Referring to Figure 2 The switching valve comprises a switching cavity and a switching piece 2 movably arranged in the switching cavity. In the present embodiment, the switching piece 2 is arranged in a rotating manner and is rotated to different positions by rotation. When the switching piece 2 is in the first position, the switching piece 2 opens the first water outlet passage 3 and partially opens the second water outlet passage 4. In the present embodiment, the switching piece 2 does not completely cover the second water outlet passage 4, i.e., the switching piece 2 is misaligned with the inlet end of the second water outlet passage 4, so as to partially open the second water outlet passage 4, so that the water passing through the second water outlet passage 4 is small and slow, which can slowly discharge air and better reduce noise. When the switching piece 2 is in the second position, referring to Figure 3 The first water outlet passage 3 and the second water outlet passage 4 are both completely opened.

[0042] Referring to Figure 4 In some embodiments, the low-noise control valve group is further provided with a connecting passage 5 which is in communication with the first water outlet passage 3 and the second water outlet passage 4. When the switching piece 2 is in the first position, the switching piece 2 covers the second water outlet passage 4, the switching piece 2 opens the first water outlet passage 3, and the connecting passage 5 is in communication with the second water outlet passage 4. At this time, it is equivalent to partially opening the second water outlet passage 4, and the above-mentioned way of not completely covering the second water outlet passage 4 by the switching piece 2 can be selected at will. Figure 3 When the switching piece 2 is in the second position, the first water outlet passage 3 and the second water outlet passage 4 are both completely opened. In some embodiments, the connecting passage 5 is provided through the switching piece 2.

[0043] In some embodiments, the first water outlet passage 3 is a brushing circle water passage of the closestool, and the second water outlet passage 4 is a main flushing water passage of the closestool.

[0044] In some embodiments, the water pump 1 is in communication with a water tank, and the water pump pumps water in the water tank to the control valve.

[0045] The implementation principle of the low-noise control valve group in the present embodiment is that, in the initial stage, the power of the water pump 1 gradually increases to the target power instead of instantaneously reaching the maximum value, so that the water flow speed gradually increases, which avoids the impact noise caused by the sudden acceleration of the water flow. At the same time, as the power of the water pump 1 gradually increases, the water in the first water outlet passage 3 and the second water outlet passage 4 begins to slowly discharge. In this process, the air in the passages is also slowly squeezed out, which avoids the noise caused by the rapid compression or release of the air, so as to achieve the effect of reducing noise when the control valve group is opened.

[0046] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A low noise control valve group characterized by: The water pump, the control valve, the first water outlet channel and the second water outlet channel are communicated with each other, and the control valve controls the opening and closing of the first water outlet channel and the second water outlet channel; during the opening of the water pump for a set time, the control valve opens the first water outlet channel and the second water outlet channel, and the power of the water pump gradually increases to a target power, so that the water in the first water outlet channel and the second water outlet channel is slowly discharged, and the air in the first water outlet channel and the second water outlet channel is slowly extruded.

2. A low noise control valve group according to claim 1, characterised in that: During the opening of the water pump for a time period of 0-T1, the control valve opens the first water outlet channel and partially opens the second water outlet channel, and the power of the water pump gradually increases to a target power. During the opening of the water pump for a time period of T1-T2, the control valve opens the first water outlet channel and the second water outlet channel, and the power of the water pump is constant at the target power. During the opening of the water pump for a time period of T2-T3, the control valve closes or partially closes the second water outlet channel, and the power of the water pump gradually decreases from the target power or is directly closed.

3. A low noise control valve group according to claim 2, characterised in that: During the opening of the water pump for a time period of 0-T1, the gradual increase of the power of the water pump to the target power includes one or a combination of linear change, stage change and curve change.

4. A low noise control valve group according to claim 1, wherein: The control valve is a switching valve, which comprises a switching cavity and a switching piece movably arranged in the switching cavity; when the switching piece is in a first position, the switching piece opens the first water outlet channel and partially opens the second water outlet channel. When the switching piece is in a second position, the first water outlet channel and the second water outlet channel are both completely opened.

5. A low noise control valve group according to claim 4, characterised in that: When the switching piece is in the first position, the switching piece is misaligned with the inlet end of the second water outlet channel to partially open the second water outlet channel; when the switching piece is in the second position, the switching piece moves to a position corresponding to the wall of the switching cavity to completely open the first water outlet channel and the second water outlet channel.

6. A low noise control valve group according to claim 4 wherein: A connecting channel is further arranged, which communicates the first water outlet channel and the second water outlet channel; when the switching piece is in the first position, the switching piece covers the second water outlet channel, the switching piece opens the first water outlet channel and communicates with the second water outlet channel through the connecting channel; when the switching piece is in the second position, the first water outlet channel and the second water outlet channel are both completely opened.

7. A low noise control valve group according to claim 6, characterised in that: The connecting channel is formed through the switching piece.

8. A low noise control valve group according to claim 1 wherein: The first water outlet channel is a flushing water channel of a toilet, and the second water outlet channel is a main flushing water channel of the toilet.

9. A low noise control valve group according to claim 1 wherein: The water pump is communicated with a water tank, and the water pump draws water in the water tank to the control valve.

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