Low-noise flushing system

Abstract

The utility model discloses a low-noise flushing system which comprises a water tank, a water inlet device, a waterway switching device, a water pump and a brush ring three-way connector, the water path switching device is provided with a water inlet pipeline, and a brush ring pipeline and an injection pipeline which are movably communicated with the water inlet pipeline; the brush ring pipeline is connected with a first water inlet end of the brush ring three-way connector; the water inlet device comprises a water inlet valve and a control valve connected with the water inlet valve, the control valve is provided with a noise reduction water outlet movably communicated with the water inlet end of the water inlet valve, and the noise reduction water outlet is connected with the second water inlet end of the brush ring three-way connector. The control valve is controlled by the waterway switching device, and when the injection pipeline of the waterway switching device is communicated with the water inlet pipeline, the noise reduction water outlet of the control valve is communicated with the water inlet end of the water inlet valve. The closestool flushing noise reduction device can achieve closestool flushing noise reduction.

Description

Technical Field

[0001] The utility model relates to the field of toilets, in particular to a low-noise flushing system. Background Art

[0002] When flushing an existing toilet, the water outflow from the water tank is divided into at least two water outflows through a water channel switching device. The first water outflow is used to flush the inner wall of the toilet bowl (which can be called flushing water), and the second water outflow is used to spray the bottom of the toilet bowl to form a siphon in the toilet (which can be called jet water). However, during the second water outflow, due to the high flow rate of the jet water, the vibration frequency and amplitude of the water flow will be higher, and the noise generated will be more irritating. In particular, when the water in the siphon pipe of the toilet is completely emptied, a cavity is formed in the toilet, and high-speed fluid is directly injected, resulting in a loud noise, which affects the user experience.

[0003] In view of the existence of the above problems, it is necessary to study a low-noise flushing system that can reduce the noise of toilet flushing. Utility Model Content

[0004] The purpose of the utility model is to provide a low-noise flushing system, which can reduce the noise of toilet flushing.

[0005] In order to achieve the above objectives, the solution of the present invention is:

[0006] A low-noise flushing system comprises a water tank and a water inlet device, a water channel switching device, a water pump and a brush ring tee joint installed in the water tank; the water channel switching device has a water inlet pipe and a brush ring pipe and a jet pipe movably connected to the water inlet pipe; the water inlet pipe is connected to the water outlet end of the water pump, and the brush ring pipe is connected to the first water inlet end of the brush ring tee joint; the water inlet device comprises an inlet valve and a control valve connected to the inlet valve, the control valve has a noise-reducing water outlet movably connected to the water inlet end of the inlet valve, and the noise-reducing water outlet is connected to the second water inlet end of the brush ring tee joint; the control valve has a linkage component controlled by the water channel switching device, and when the jet water channel of the water channel switching device is opened, the linkage component of the control valve drives the control valve to open, so that the noise-reducing water outlet of the control valve is connected to the water inlet end of the water inlet valve.

[0007] The water channel switching device also has a control pipeline and a merging pipeline. The control pipeline and the injection pipeline are connected to the water inlet pipeline through the merging pipeline, and the merging pipeline is movably connected to the water inlet pipeline; the linkage component of the control valve has a control water outlet connected to the control pipeline; when water flows into the control water outlet, the linkage component drives the control valve to open so that the noise reduction water outlet of the control valve is connected to the water inlet end of the water inlet valve.

[0008] The water channel switching device includes a switching body and the water inlet pipeline, brush ring pipeline, injection pipeline, control pipeline and merging pipeline; the switching body includes a switching body, a switching cover, a first water stop pad, a second water stop pad, a first pressure cover, a second pressure cover, a switching connecting rod and a control float; a switching cavity and an inlet, a first switching port and a second switching port communicating with the switching cavity are formed inside the switching body, and the inlet, the first switching port and the second switching port are respectively communicated with the water inlet pipeline, the brush ring pipeline and the merging pipeline; a mounting port communicating with the switching cavity is also provided on one side of the switching body, and the switching cover is installed on the mounting port and closes the mounting port, and the switching cover is provided with a first pressure relief hole and a second pressure relief hole; the first water stop pad is installed in the switching cavity and movably blocks the first switching port, and the first pressure cover is provided with a The first water-stop pad is assembled on the first water-stop pad, and the first water-stop pad, the first pressure cover and the switching cover form a first back-pressure chamber connected to the first pressure relief hole, and the first pressure cover is provided with a first drainage hole, and the first drainage hole is connected to the inlet; the second water-stop pad is installed in the switching chamber and movably blocks the second switching port, and the second pressure cover is matched with the second water-stop pad, and the second water-stop pad, the second pressure cover and the switching cover form a second back-pressure chamber connected to the second pressure relief hole, and the second pressure cover is provided with a second drainage hole, and the second drainage hole is connected to the inlet; the switching connecting rod includes a switching rod and a connecting rod, the middle part of the switching rod is rotatably connected to the outer side of the switching cover, and the two ends of the switching rod respectively movably block the first pressure relief hole and the second pressure relief hole, the first end of the connecting rod is connected to one end of the switching rod, and the second end of the connecting rod is connected to the control float.

[0009] The second end of the connecting rod is connected to the control float barrel through the connecting rod; the second end of the connecting rod forms a movable hole, the movable hole is sleeved with the connecting rod, the connecting rod is provided with a pressure head for movably pressing the connecting rod, and the connecting rod is screwed to the control float barrel.

[0010] The control valve includes a control body, a control component and the linkage component; the control body is connected to the water inlet valve, and the control body is provided with the noise reduction outlet, the pressure relief control hole and the control chamber connected to the water inlet end of the water inlet valve, and the control chamber is provided with a valve port connected to the noise reduction outlet; the control component is arranged in the control chamber, and the control component includes a control water-stop pad, a control pressure cover and a control sealing cover, the control sealing cover is fixedly fitted in the control chamber and there is a water gap between the control sealing cover and the inner wall of the control chamber, and the control sealing cover is provided with an inlet; the control water-stop pad is fitted with the control sealing cover and movably blocks the valve port, the control pressure cover is fitted on the control water-stop pad and the control water-stop pad, the control pressure cover and the control sealing cover form a control back pressure chamber connected to the pressure relief control hole and the inlet; the linkage component is fitted with the control body, and the linkage component movably blocks the pressure relief control hole.

[0011] The control assembly further comprises a control spring, which is arranged in the control back pressure cavity, and two ends of the control spring respectively abut against the control pressure cover and the control sealing cover.

[0012] The linkage assembly includes a linkage part, a linkage valve body and a linkage valve core; the linkage part is movably fitted outside the control body and movably blocks the pressure relief control hole, and a reset spring is provided between the linkage part and the control body; the linkage valve body is connected to the control body, and the linkage valve body is provided with the control water port communicated with its inner cavity; the linkage valve core is movably fitted in the inner cavity of the linkage valve body, and the linkage valve core has a pushing part extending out of the linkage valve body, and the pushing part movably pushes against the linkage part.

[0013] The linkage part is hinged to the control body, and the two ends of the linkage part respectively form a blocking part and a linkage part. The blocking part movably blocks the pressure relief control hole, and a reset spring is provided between the linkage part and the control body; the pushing part of the linkage valve core movably pushes against the linkage part.

[0014] The injection pipeline is provided with a check valve.

[0015] The water inlet valve is provided with a water replenishing port, and the injection pipeline has a water replenishing interface connected with the water replenishing port.

[0016] After adopting the above scheme, when the low-noise flushing system of the utility model is used, the water outlet end of the brush ring tee joint is connected to the brush ring water channel of the toilet, and the injection pipe is connected to the injection port at the bottom of the toilet bowl; the working principle of the utility model is as follows:

[0017] When the toilet needs to be flushed, the water pump draws water from the water tank to the water inlet pipe of the water path switching device; in the early stage of flushing, the brush ring pipe and the water inlet pipe of the water path switching device are connected, so that the water flow drawn by the water pump is output to the brush ring three-way joint through the brush ring pipe, so that the toilet outputs brush ring water to flush the inner wall of the toilet bowl; in the middle and late stages of flushing, the water path switching device switches to the jet pipe and the water inlet pipe to be connected, so that the water flow drawn by the water pump outputs the jet water to the jet port of the toilet through the jet pipe. At the same time, the water path switching device controls the noise reduction outlet of the control valve of the water inlet device to be connected with the water inlet end of the water inlet valve, so that the control valve leads the inlet water source to the brush ring three-way joint, so that the toilet outputs brush ring water to flush the inner wall of the toilet bowl.

[0018] From the above, it can be seen that the utility model allows the toilet to output brush ring water all the time during the flushing process of the toilet, so that the accumulated water at the bottom of the toilet bowl will be continuously replenished while being drained away, so that there is always a certain amount of liquid in the toilet bowl and the liquid level reaches a certain height, thereby avoiding the formation of cavities in the toilet drainage water channel and achieving the effect of noise reduction; moreover, the brush ring water can buffer the spray water and avoid the spray water directly hitting the toilet wall, thereby further achieving the effect of noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2This is a schematic diagram of the local structure of the utility model Figure 1 .

[0021] Figure 3 This is a schematic diagram of the local structure of the utility model Figure 1 .

[0022] Figure 4 The structure of the water inlet device of the utility model is shown as follows Figure 1 .

[0023] Figure 5 The structure of the water inlet device of the utility model is shown as follows Figure 2 .

[0024] Figure 6 This is a cross-sectional view of the water inlet device of the utility model Figure 1 .

[0025] Figure 7 This is a cross-sectional view of the water inlet device of the utility model Figure 2 .

[0026] Figure 8 This is a cross-sectional view of the water inlet device of the utility model Figure 3 .

[0027] Figure 9 This is a schematic diagram of the structure of the water channel switching device of the utility model Figure 1 .

[0028] Figure 10 This is a schematic diagram of the structure of the water channel switching device of the utility model Figure 2 .

[0029] Figure 11 It is a cross-sectional view of the water channel switching device of the present invention.

[0030] Description of labels:

[0031] Water tank A,

[0032] Water inlet device B,

[0033] Water inlet valve B1, water supply port B11,

[0034] Control valve B2,

[0035] Control body B21, noise reduction outlet B211, pressure relief control hole B212, control cavity B213, valve port B2131,

[0036] Control assembly B22, control back pressure chamber B220, control water stop pad B221, control pressure cover B222, plug rod B2221, control cover B223, inlet B2231, control spring B224, control ring cover B225,

[0037] Linkage component B23,

[0038] Linkage part B231, blocking part B2311, linkage part B2312, pad B2313,

[0039] Linked valve body B232, control water outlet B2321,

[0040] Linkage valve core B233, push part B2331,

[0041] Return spring B234,

[0042] Waterway switching device C,

[0043] Switch body C1, first back pressure chamber C101, second back pressure chamber C102,

[0044] Switch body 1, switch cavity 11, inlet 12, first switch port 13, second switch port 14, installation port 15,

[0045] Switch cover 2, first pressure relief hole 21, second pressure relief hole 22,

[0046] First water stop pad 3, first pressure ring 31,

[0047] Second water stop pad 4, second pressure ring 41,

[0048] First gland 5, first drainage hole 51, first slider 52,

[0049] The second gland 6, the second drainage hole 61, the second slider 62,

[0050] Switching link 7, switching rod 71, plug 711, connecting rod 72, movable hole 721,

[0051] Control float 8,

[0052] Connecting rod 9, pressure head 91,

[0053] Water inlet pipe C2,

[0054] Brush ring pipeline C3,

[0055] Injection pipeline C4, water supply interface C41, check valve C42,

[0056] Control line C5,

[0057] Merge pipeline C6,

[0058] Water pump D,

[0059] Brush ring tee connector E,

[0060] Connecting pipe F,

[0061] Water supply pipe G,

[0062] The first brush ring tube H,

[0063] The second brush circle tube J. DETAILED DESCRIPTION

[0064] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0065] like Figures 1 to 11 As shown, the utility model discloses a low-noise flushing system, which includes a water tank A and a water inlet device B, a water channel switching device C, a water pump D and a brush ring tee joint E installed in the water tank A; wherein, the water channel switching device C has a water inlet pipe C2 and a brush ring pipe C3 and a spray pipe C4 movably connected to the water inlet pipe C2; ​​the water inlet pipe C2 is connected to the water outlet end of the water pump D, and the brush ring pipe C3 is connected to the first water inlet end of the brush ring tee joint E through a first brush ring pipe H; the water inlet device B includes a water inlet valve B1 and a brush ring tee joint E connected to the inlet pipe C2. The water valve B1 is connected to the control valve B2, and the control valve B2 has a noise reduction water outlet B211 which is movably connected to the water inlet end of the water inlet valve B1. The noise reduction water outlet B211 is connected to the second water inlet end of the brush ring three-way joint E through the second brush ring tube J; the control valve B2 has a linkage component B23 controlled by the water channel switching device C. When the injection pipeline C4 of the water channel switching device C is connected with the water inlet pipeline C2, the linkage component B23 drives the control valve B2 to open, so that the noise reduction water outlet B211 of the control valve B2 is connected to the water inlet end of the water inlet valve B1.

[0066] When the low-noise flushing system of the present invention is used, the water outlet end of the brush ring tee joint E is connected to the brush ring water channel of the toilet, and the injection pipe C4 is connected to the injection port at the bottom of the toilet bowl; the working principle of the present invention is as follows:

[0067] When the toilet needs to be flushed, the water pump D draws water from the water tank A to the water inlet pipe C2 of the water channel switching device C; in the early stage of flushing, the brush ring pipe C3 of the water channel switching device C is connected to the water inlet pipe C2, so that the water flow drawn by the water pump D is output to the brush ring three-way joint E through the brush ring pipe C3, so that the toilet outputs brush ring water to flush the inner wall of the toilet bowl; in the middle and late stages of flushing, the water channel switching device C switches to the jet pipe C4 and connects with the water inlet pipe C2, so that the water flow drawn by the water pump D outputs the jet water to the jet port of the toilet through the jet pipe C4. At the same time, the water channel switching device C controls the noise reduction outlet B211 of the control valve B2 of the water inlet device B to be connected to the water inlet end of the water inlet valve B1, so that the control valve B2 leads the inlet water source to the brush ring three-way joint E, so that the toilet outputs brush ring water to flush the inner wall of the toilet bowl. From the foregoing, it can be seen that the present invention causes the toilet to output brush ring water all the time during the flushing process of the toilet, so that the accumulated water at the bottom of the toilet bowl is drained away and is continuously replenished, so that a certain amount of liquid is always maintained in the toilet bowl and the liquid level reaches a certain height, thereby avoiding the formation of cavities in the toilet drainage waterway and achieving the effect of noise reduction; moreover, the brush ring water can buffer the spray water and avoid the spray water directly hitting the toilet wall, thereby further achieving the effect of noise reduction.

[0068] In an embodiment of the present utility model, the water circuit switching device C also has a control pipeline C5 and a merging pipeline C6. The control pipeline C5 and the injection pipeline C4 are connected to the water inlet pipeline C2 through the merging pipeline C6. The merging pipeline C6 is movably connected to the water inlet pipeline C2, that is, the control pipeline C5 and the injection pipeline C4 are connected or not connected to the water inlet pipeline C2 at the same time; and the linkage component B23 of the control valve B2 has a control water port B2321 connected to the control pipeline C5; when water flows into the control water port B2321, the linkage component B23 drives the control valve B2 to open, so that the noise reduction water outlet B211 of the control valve B2 is connected to the water inlet end of the water inlet valve B1; such an arrangement enables, when the injection pipeline C4 of the water circuit switching device C is connected to the water inlet pipeline C2, the noise reduction water outlet B211 of the control valve B2 is connected to the water inlet end of the water inlet valve B1.

[0069] In an embodiment of the present invention, the waterway switching device C includes a switching body C1 and the water inlet pipe C2, the brush ring pipe C3, the spray pipe C4, the control pipe C5 and the merging pipe C6; wherein, the switching body C1 includes a switching body 1, a switching cover 2, a first water stop pad 3, a second water stop pad 4, a first pressure cover 5, a second pressure cover 6, a switching connecting rod 7 and a control float 8; a switching cavity 11 is formed inside the switching body 1, and an inlet 12, a first switching port 13 and a second switching port 14 are communicated with the switching cavity 11. The second switching port 14, the inlet 12, the first switching port 13 and the second switching port 14 are connected to the water inlet pipe C2, the brush ring pipe C3 and the combined pipe C6 respectively; one side of the switching body 1 is also provided with a mounting port 15 communicating with the switching chamber 11, the switching cover 2 is installed on the mounting port 15 and closes the mounting port 15, and the switching cover 2 is provided with a first pressure relief hole 21 and a second pressure relief hole 22; the first water stop pad 3 is installed in the switching chamber 11 and movably blocks the first switching port 13, and the edge of the first water stop pad 3 can be connected to the switching cover 2 through the first pressure ring 31. The first pressure cover 5 is connected to the first water stop pad 3, and the first water stop pad 3, the first pressure cover 5 and the switching cover 2 form a first back pressure chamber C101 which is communicated with the first pressure relief hole 21. The first pressure cover 5 is provided with a first drainage hole 51, and the first drainage hole 51 is communicated with the inlet 12; the second water stop pad 4 is installed in the switching chamber 11 and movably blocks the second switching port 14. The edge of the second water stop pad 4 can be connected to the switching cover 2 through the second pressure ring 41. The second pressure cover 6 is matched with the second water stop pad 4 and the second water stop pad 4, the second pressure ring 41 and the switching cover 2 are connected. The cover 6 and the switching cover 2 form a second back pressure chamber C102 that communicates with the second pressure relief hole 22. The second pressure cover 6 is provided with a second drainage hole 61, which communicates with the inlet 12. The switching link 7 includes a switching rod 71 and a connecting rod 72. The middle part of the switching rod 71 is rotatably connected to the outer side of the switching cover 2, and the two ends of the switching rod 71 respectively movably block the first pressure relief hole 21 and the second pressure relief hole 22. The first end of the connecting rod 72 is connected to one end of the switching rod 71, and the second end of the connecting rod 72 is connected to the control float 8.

[0070] The working principle of the water channel switching device C is as follows: in the early stage of flushing the toilet, the water in the water tank A makes the control float 8 in a high position. At this time, the control float 8 controls the switching rod 71 to block the second pressure relief hole 22 and open the first pressure relief hole 21. At this time, the first back pressure chamber C101 is depressurized and the second back pressure chamber C102 is pressurized by water, so that the second water stop pad 4 moves to close the second switching port 14 and the first water stop pad 3 does not close the first switching port 13. In this way, the first switching port 13 is connected to the inlet 12, so that the brush ring pipeline C3 is connected to the water inlet. Pipeline C2 is connected; in the middle and late stages of flushing the toilet, the water in the water tank A decreases, causing the control float 8 to be in a low position. At this time, the control float 8 controls the switching rod 71 to block the first pressure relief hole 21 and open the second pressure relief hole 22. At this time, water enters the first back pressure chamber C101 and pressurizes the second back pressure chamber C102, causing the first water stop pad 3 to move to close the first switching port 13 and the second water stop pad 4 not to close the second switching port 14. In this way, the second switching port 14 is connected to the inlet 12, causing the merged pipeline C6 to be connected to the water inlet pipeline C2.

[0071] In an embodiment of the present invention, both ends of the switching rod 71 may be equipped with plugs 711 respectively, and the plugs 711 at both ends of the switching rod 71 respectively movably block the first pressure relief hole 21 and the second pressure relief hole 22, thereby ensuring the blocking effect of the first pressure relief hole 21 and the second pressure relief hole 22.

[0072] In an embodiment of the present invention, the switch cover 2 is located on the side of the switch body C1. The first pressure cover 5 can be provided with a first slider 52 that slides with the switch cover 2 to enable the first water stop pad 3 to move accurately, so that the first water stop pad 3 can accurately close the first switch opening 13. Similarly, the second pressure cover 6 can be provided with a second slider 62 that slides with the switch cover 2 to enable the second water stop pad 4 to move accurately, so that the second water stop pad 4 can accurately close the second switch opening 14.

[0073] In an embodiment of the present invention, the second end of the linkage rod 72 is connected to the control float 8 via a connecting rod 9. Specifically, a movable hole 721 is formed at the second end of the linkage rod 72, which is fitted with the connecting rod 9. The connecting rod 9 is equipped with a pressure head 91 that flexibly presses the linkage rod 72. The connecting rod 9 is connected to the control float 8, and the upward and downward movement of the control float 8 drives the switching linkage 7 to rotate. The connecting rod 9 and the control float 8 are threadedly connected, allowing the initial position of the control float 8 to be adjusted and the water discharge time to be controlled. The control float 8 flexibly fits within the water inlet pipe C2, allowing the water inlet pipe to guide the movement of the control float 8 and simultaneously reducing the volume of the waterway switching device C.

[0074] In an embodiment of the present utility model, the control valve B2 includes a control body B21, a control component B22 and the linkage component B23; the control body B21 is connected to the water inlet valve B1, and the control body B21 is provided with the noise reduction water outlet B211, the pressure relief control hole B212 and the control chamber B213 connected to the water inlet end of the water inlet valve B1, and the control chamber B213 is provided with a valve port B2131 connected to the noise reduction water outlet B211; the control component B22 is arranged in the control chamber B213, and the control component B22 includes a control water stop pad B221, a control pressure cover B222 and a control cover B223, and the control cover B223 is fixedly fitted in the control chamber B213 and the control cover B223 is connected to the control There is a water gap between the inner walls of the cavity B213, and the control cover B223 is provided with an inlet B2231; the control water-stop pad B221 is matched with the control cover B223 and movably blocks the valve port B2131, the control pressure cover B222 is matched with the control water-stop pad B221, and the control water-stop pad B221, the control pressure cover B222 and the control cover B223 form a control back pressure chamber B220 that communicates with the pressure relief control hole B212 and the inlet B2231; the linkage component B23 is matched with the control body B21, the linkage component B23 is provided with the control water outlet B2321 and the linkage component B23 movably blocks the pressure relief control hole B212, and the control water outlet B2321 can be connected to the control pipeline C5 through the connecting pipe F.

[0075] In an embodiment of the present invention, the control assembly B22 further includes a control spring B224 disposed within the control backpressure chamber B220. The ends of the control spring B224 respectively abut against the control gland B222 and the control seal B223. This spring B224 enables the control water-stop pad B221 to more stably seal the valve port B2131. The control gland B222 may include a plug rod B2221 that intersects the inlet B2231, ensuring stable movement of the control water-stop pad B221 and preventing clogging of the inlet B2231. The control seal B223 may be connected to a control ring cover B225. The edge of the control water-stop pad B221 is sandwiched between the control ring cover B223 and the control ring cover B225. The control water-stop pad B221 may cover the control gland B222, ensuring a stable connection between the control water-stop pad B221 and the control gland B222.

[0076] In an embodiment of the present utility model, the linkage assembly B23 includes a linkage part B231, a linkage valve body B232 and a linkage valve core B233; wherein, the linkage part B231 is movably engaged with the outside of the control body B21 and movably blocks the pressure relief control hole B212, and a reset spring B234 is provided between the linkage part B231 and the control body B21; the linkage valve body B232 is connected to the control body B21, and the linkage valve body B232 is provided with the control water outlet B2321 communicated with its inner cavity; the linkage valve core B233 is movably engaged in the inner cavity of the linkage valve body B232, and the linkage valve core B233 has a pushing part B2331 extending out of the linkage valve body B232, and the pushing part B2331 movably pushes the linkage part B231. When water flows into the control water outlet B2321, the water flow entering the inner cavity of the linkage valve body B232 pushes the linkage valve core B233 to move, so that the pushing part B2331 of the linkage valve core B233 pushes against the linkage part B231 and drives the linkage part B231 to move, and the linkage part B231 then does not block the pressure relief control hole B212; and when water does not flow into the control water outlet B2321, the pushing part B2331 of the linkage valve core B233 does not push against the linkage part B231, and the linkage part B231 continues to block the pressure relief control hole B212 under the action of the reset spring B234.

[0077] In an embodiment of the present utility model, the linkage part B231 can be hinged to the control body B21, and the two ends of the linkage part B231 respectively form a blocking part B2311 and a linkage part B2312. The blocking part B2311 can movably block the pressure relief control hole B212, and the blocking part B2311 can be equipped with a pad B2313 to completely block the pressure relief control hole B212. The return spring B234 is provided between the linkage part B2312 and the control body B21. The linkage part B2312 can be sleeved on the return spring B234 to prevent the return spring B234 from shifting. The control body B21 and the return spring B234 can also be plugged in to prevent the return spring B234 from shifting; the pushing part B2331 of the linkage valve core B233 movably pushes against the linkage part B2312, and the pushing part B2331 pushes against the linkage part B2312 to drive the linkage part B231 to rotate.

[0078] In the embodiment of the present utility model, the working principle of the control valve B2 is specifically as follows:

[0079] In the early stage of toilet flushing, since the combined pipe C6 of the water channel switching device C is not connected to the water inlet pipe C2, no water flows out of the control pipe C5. In this way, no water flows into the control water port B2321 of the linkage valve body B232, and the pushing portion B2331 of the linkage valve core B233 does not push against the linkage part B231. The linkage part B231 keeps blocking the pressure relief control hole B212 under the action of the reset spring B234. At this time, the control back pressure chamber B220 is pressurized due to the water flowing into the inlet port B2231, so that the control water stop pad B221 blocks the valve port B2131 under the action of the internal pressure of the control back pressure chamber B220 and the action of the control spring B224, so that no water flows out of the noise reduction water outlet B211. In the middle and late stages of toilet flushing, due to When the merged pipeline C6 of the water channel switching device C is connected with the water inlet pipeline C2, the control pipeline C5 outputs water to the control water outlet B2321 of the linkage valve body B232. The water flow entering the inner cavity of the linkage valve body B232 pushes the linkage valve core B233 to move, so that the pushing part B2331 of the linkage valve core B233 pushes against the linkage part B2312 of the linkage part B231 and drives the linkage part B231 to rotate, so that the blocking part B2311 of the linkage part B231 does not block the pressure relief control hole B212; at this time, the pressure relief control hole B212 is opened to control the back pressure chamber B220 to release pressure, and the control water stop pad B221 moves under the action of the water pressure in the control chamber B213 to open the valve port B2131, so that water can be discharged from the noise reduction outlet B211.

[0080] It should be noted that the linkage part B231 is not limited to being hinged with the control body B21. The linkage part B231 and the control body B21 can also be slidably matched, as long as the linkage part B231 can movably block the pressure relief control hole B212.

[0081] In an embodiment of the present invention, the water inlet valve B1 is provided with a water replenishment port B11, and the injection line C4 has a water replenishment interface C41 connected to the water replenishment port B11. The water replenishment interface C41 can be connected to the water replenishment port B11 via a water replenishment pipe G. Thus, after the toilet is flushed, the water inlet valve B1 simultaneously directs water from the inlet water source into the water tank A and also directs water from the inlet water source into the injection line C4, causing water to flow out of the injection line C4 and form a water seal at the bottom of the toilet bowl. The specific structure and operating principle of the water inlet valve B1 are prior art and will not be further described here. Furthermore, the injection line C4 can be provided with a check valve C42, which prevents water in the toilet from flowing back into the water path switching device C.

[0082] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A low-noise flushing system, characterized by: It includes a water tank and a water inlet device installed in the water tank, a water channel switching device, a water pump and a brush ring tee joint; The water channel switching device comprises a water inlet pipeline and a brush ring pipeline and a spray pipeline movably connected to the water inlet pipeline; the water inlet pipeline is connected to the water outlet end of the water pump, and the brush ring pipeline is connected to the first water inlet end of the brush ring tee joint; The water inlet device includes a water inlet valve and a control valve connected to the water inlet valve, the control valve has a noise reduction water outlet movably connected to the water inlet end of the water inlet valve, and the noise reduction water outlet is connected to the second water inlet end of the brush ring three-way joint; the control valve has a linkage component controlled by the water channel switching device, when the jet water channel of the water channel switching device is opened, the linkage component of the control valve drives the control valve to open, so that the noise reduction water outlet of the control valve is connected to the water inlet end of the water inlet valve.

2. The low-noise flushing system according to claim 1, characterized in that: The water channel switching device further comprises a control pipeline and a merging pipeline, wherein the control pipeline and the injection pipeline are connected to the water inlet pipeline via the merging pipeline, and the merging pipeline is movably connected to the water inlet pipeline; The linkage component of the control valve has a control water port connected to the control pipeline; when water flows into the control water port, the linkage component drives the control valve to open so that the noise reduction outlet of the control valve is connected to the water inlet end of the water inlet valve.

3. The low-noise flushing system according to claim 2, characterized in that: The water channel switching device includes a switching body and the water inlet pipeline, brush circle pipeline, injection pipeline, control pipeline and merging pipeline; The switching body includes a switching body, a switching cover, a first water stop pad, a second water stop pad, a first pressure cover, a second pressure cover, a switching connecting rod and a control float; A switching cavity, an inlet, a first switching port, and a second switching port communicating with the switching cavity are formed inside the switching body. The inlet, the first switching port, and the second switching port are respectively communicated with the water inlet pipe, the brush ring pipe, and the merging pipe; a mounting port communicating with the switching cavity is further provided on one side of the switching body, a switching cover is installed on the mounting port and closes the mounting port, and the switching cover is provided with a first pressure relief hole and a second pressure relief hole; The first water-stop pad is installed in the switching cavity and movably blocks the first switching port. The first gland is fitted on the first water-stop pad, and the first water-stop pad, the first gland and the switching cover form a first back-pressure cavity communicating with the first pressure relief hole. The first gland is provided with a first drainage hole, which is communicated with the inlet. The second water-stop pad is installed in the switching cavity and movably blocks the second switching port. The second gland is matched with the second water-stop pad, and the second water-stop pad, the second gland and the switching cover form a second back pressure cavity communicated with the second pressure relief hole. The second gland is provided with a second drainage hole, which is communicated with the inlet. The switching link includes a switching rod and a connecting rod. The middle part of the switching rod is rotatably connected to the outer side of the switching cover, and the two ends of the switching rod respectively movably block the first pressure relief hole and the second pressure relief hole. The first end of the connecting rod is connected to one end of the switching rod, and the second end of the connecting rod is connected to the control float.

4. The low-noise flushing system according to claim 3, characterized in that: The second end of the linkage rod is connected to the control float bucket via a connecting rod; The second end of the connecting rod is formed with a movable hole, the movable hole is sleeved with a connecting rod, the connecting rod is provided with a pressure head for movably pressing the connecting rod, and the connecting rod is screwed to the control float.

5. The low-noise flushing system according to claim 2, characterized in that: The control valve includes a control body, a control component and the linkage component; The control body is connected to the water inlet valve, and is provided with the noise reduction water outlet, the pressure relief control hole, and a control chamber connected to the water inlet end of the water inlet valve, and a valve port connected to the noise reduction water outlet is provided in the control chamber; The control assembly is arranged in the control cavity, and the control assembly includes a control water stop pad, a control pressure cover and a control cover. The control cover is fixedly fitted in the control cavity and there is a water gap between the control cover and the inner wall of the control cavity. The control cover is provided with an inlet. The control water-stop pad is matched with the control cover and movably blocks the valve port. The control pressure cover is matched with the control water-stop pad. The control water-stop pad, the control pressure cover and the control cover form a control back pressure cavity that communicates with the pressure relief control hole and the inlet. The linkage component is matched with the control body, and the linkage component movably blocks the pressure relief control hole.

6. The low-noise flushing system according to claim 5, characterized in that: The control assembly further comprises a control spring, which is arranged in the control back pressure cavity, and two ends of the control spring respectively abut against the control pressure cover and the control sealing cover.

7. The low-noise flushing system according to claim 5, characterized in that: The linkage assembly includes a linkage part, a linkage valve body and a linkage valve core; The linkage piece is movably fitted outside the control body and movably blocks the pressure relief control hole, and a return spring is provided between the linkage piece and the control body; The linkage valve body is connected to the control body, and the linkage valve body is provided with the control water port communicated with its inner cavity; The linkage valve core is movably matched in the inner cavity of the linkage valve body. The linkage valve core is provided with a pushing portion extending out of the linkage valve body. The pushing portion movably pushes against the linkage member.

8. The low-noise flushing system according to claim 7, characterized in that: The linkage part is hinged to the control body, and the two ends of the linkage part respectively form a blocking part and a linkage part. The blocking part movably blocks the pressure relief control hole, and a reset spring is provided between the linkage part and the control body; the pushing part of the linkage valve core movably pushes against the linkage part.

9. The low-noise flushing system according to claim 1, characterized in that: The injection pipeline is provided with a check valve.

10. The low-noise flushing system according to claim 1, characterized in that: The water inlet valve is provided with a water replenishing port, and the injection pipeline has a water replenishing interface connected with the water replenishing port.

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