Silent flushing closestool

Abstract

The invention relates to the technical field of sanitary ware, and discloses a mute flushing closestool which comprises a closestool body, a water tank, a first flushing pipeline and a second flushing pipeline, a water inlet valve, a water outlet valve and a first water pump are arranged in the water tank, the water inlet valve is used for supplementing water to the water tank, and the first water pump is always located below the liquid level of the water tank; one end of the first flushing pipeline is connected with the first water pump, and the other end penetrates through the water tank and is connected with the first flushing port; two ends of the second flushing pipeline are respectively connected with the water outlet valve and the second flushing port; the water outlet valve is used for controlling the second flushing pipeline to be connected or disconnected with the water tank; wherein a second water pump is arranged in the water outlet valve, the water outlet valve is provided with a first water inlet at the water inlet end of the second water pump, a third flushing pipeline is arranged at the water outlet end of the second water pump, and the water outlet end of the third flushing pipeline is communicated with the water inlet end of the second flushing pipeline. The mute flushing closestool is good in flushing effect and low in noise during flushing.

Description

Technical Field

[0001] The present invention relates to the technical field of sanitary ware, in particular to a silent flushing toilet. Background Art

[0002] With the continuous development of smart homes, smart toilets are gradually replacing traditional toilets. The flushing process of a smart toilet typically consists of three stages: a circular flush, a bottom flush, and a water replenishment stage. Existing smart toilet flushing systems typically use a pump to directly pressurize tap water, which is then ejected from a nozzle through a pipe, creating a high-flow jet of water. This achieves effective drainage, but this flushing method can generate considerable noise and can lead to a poor user experience.

[0003] Therefore, it is necessary to propose a silent flush toilet with little noise during flushing. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a silent flush toilet which produces little noise during flushing.

[0005] To solve the above technical problems, the present invention provides a silent flush toilet, comprising a toilet body, a water tank, a first flush pipe and a second flush pipe. The toilet body is provided with a toilet bowl and a first installation cavity that are separated from each other. The water tank is arranged in the first installation cavity. A first flush port is provided at the top of the toilet bowl, and a second flush port is provided at the bottom of the toilet bowl.

[0006] The water tank is provided with a water inlet valve, a water outlet valve, and a first water pump. The water inlet valve is used to replenish water to the water tank. The first water pump is always located below the liquid level of the water tank.

[0007] One end of the first flushing pipe is connected to the first water pump, and the other end passes through the water tank and is connected to the first flushing port;

[0008] The two ends of the second flushing pipe are respectively connected to the water outlet valve and the second flushing port, and the water outlet valve is used to control the connection or disconnection of the second flushing pipe with the water tank;

[0009] In which, a second water pump is provided in the water outlet valve, and a first water inlet is provided at the water inlet end of the second water pump, and a third flushing water pipeline is provided at the water outlet end of the second water pump, and the water outlet end of the third flushing water pipeline is connected to the water inlet end of the second flushing water pipeline.

[0010] As an improvement to the above-mentioned solution, the water tank includes a first cavity and a second cavity, the water inlet valve and the water outlet valve are both arranged in the first cavity, the second cavity is communicated with the first cavity, a first cavity wall is provided on the side of the first cavity close to the toilet bowl, and a second cavity wall is provided on the side of the second cavity close to the toilet bowl, the second cavity wall is provided in the direction of the first cavity wall away from the toilet bowl, and the second cavity wall is provided with a through hole for the first flushing pipe to pass through.

[0011] As an improvement to the above-mentioned solution, the first flushing pipe includes a first pipe section, a second pipe section and an elbow joint, the elbow joint is arranged in the through hole, one end of the first pipe section is connected to the horizontal section of the elbow joint, and the other end is connected to the first flushing port, one end of the second pipe section is connected to the lower bend section of the elbow joint, and the other end is connected to the first water pump after bypassing the water inlet valve.

[0012] As an improvement of the above-mentioned scheme, the water outlet valve includes a valve seat, a valve cover, and a sealing member. The valve cover is provided with a second installation cavity and a third installation cavity. The first water inlet is connected to the second installation cavity. The second water pump is arranged in the second installation cavity. The valve seat is provided with a second water outlet opposite to the third installation cavity. The valve seat or the valve cover is provided with a second water inlet located on the periphery of the second water outlet. The third installation cavity is provided with a first driving member for driving the sealing member to close or open the second water outlet.

[0013] As an improvement of the above-mentioned scheme, the third flushing pipeline includes a third pipe section, a fourth pipe section and a fifth pipe section. The third pipe section is connected to the valve cover or is formed on the valve cover. The fourth pipe section is connected to the valve seat and passes through the valve seat or is formed on the valve seat. When the valve cover is connected to the valve seat, the third pipe section is connected to the fourth pipe section. The fifth pipe section is arranged in the valve seat and is connected to the fourth pipe section.

[0014] As an improvement to the above solution, the first water inlet is arranged at the bottom of the second installation cavity, and the first water inlet is provided with a filter.

[0015] As an improvement of the above scheme, the valve cover is provided with a first water outlet and a limiting hole, one end of the third pipe section is connected to the first water outlet, and the other end passes through the limiting hole and is connected to the fourth pipe section, and the angle between the line from the center of the second water outlet to the center of the limiting hole and the line from the center of the second water outlet to the center of the first water outlet is 100°~180°.

[0016] As an improvement to the above solution, the location where the fourth pipe segment is connected to the fifth pipe segment is located below the second water outlet.

[0017] As an improvement to the above scheme, a water level sensor is provided in the water tank, and the water level sensor is provided above the first water pump and the second water pump. The water level sensor is connected to the first water pump and the second water pump to shut down the first water pump and the second water pump when the water level drops to the water level sensor.

[0018] As an improvement of the above solution, the water inlet valve includes a float and a water supply port for supplying water into the water tank. The float rises and falls with the water level to automatically close or open the water supply port.

[0019] The implementation of the present invention has the following beneficial effects:

[0020] The present invention discloses a silent flush toilet. When flushing, a first water pump drives water into a first flush pipe. The water flow of the first flush pipe circulates and flushes the toilet bowl through a first flush port. Since the first water pump is always below the liquid level of a water tank, the water in the water tank and the water tank shell can shield the noise generated when the first water pump is working. Moreover, the first flush pipe is connected to the first flush port only after passing through the water tank. The vibration of the first flush pipe increases the attenuation of sound propagation after passing through multiple media in the water in the water tank, the water tank shell, the air, and the toilet body, thereby achieving noise reduction. In addition, the water outlet valve transmits water from the second flush pipe and the third flush pipe to the toilet bowl. The sewage bend pipe flowing to the bottom of the toilet bowl is directly sprayed. By arranging the second water pump in the water outlet valve in the water tank, the noise generated by the second water pump when it is working can be shielded after the multiple media in the water outlet valve housing, water, water tank housing, and toilet body, and the water outlet end of the third flushing pipe is connected with the water inlet end of the second flushing pipe, so that the flushing water can fill the second flushing pipe more promptly and the gas in the second flushing pipe is discharged in time, avoiding the foam explosion generated by the mixing of water and gas in the pipe due to the failure of the second flushing pipe to be filled and drained in time to generate noise; the toilet of the present invention has good flushing effect, low noise during flushing, and good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of an embodiment of a silent flush toilet of the present invention;

[0022] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure from another perspective;

[0023] Figure 3 This is a schematic diagram of the installation structure of the water tank and the first flushing pipeline, the second flushing pipeline, the water inlet valve, the water outlet valve, and the first water pump;

[0024] Figure 4 It is a structural diagram of the water tank;

[0025] Figure 5 It is a structural diagram of the water outlet valve and the second flushing pipeline;

[0026] Figure 6 This is a schematic diagram of the valve cover structure of the water outlet valve;

[0027] Figure 7 It is a schematic diagram of the valve seat structure of the water outlet valve. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 7 As shown, the present invention discloses an embodiment of a silent flush toilet, comprising a toilet body 1, a water tank 2, a first flush pipe 3, and a second flush pipe 4. The toilet body 1 is provided with a toilet bowl 11 and a first installation cavity 12, which are separated from each other. The water tank 2 is disposed within the first installation cavity 12. A first flush port 111 is provided at the top of the toilet bowl 11, and a second flush port 112 is provided at the bottom of the toilet bowl 11. The second flush port 112 faces a drain bend at the bottom of the toilet bowl 11, which is also known as a siphon bend. The water tank 2 is provided with an inlet valve 5, an outlet valve 6, and a first water pump 7. The inlet valve 5 is used to replenish water to the water tank 2, and the first water pump 7 is always below the liquid level of the water tank 2; one end of the first flushing pipe 3 is connected to the first water pump 7, and the other end passes through the water tank 2 and is connected to the first flushing port 111; the two ends of the second flushing pipe 4 are respectively connected to the outlet valve 6 and the second flushing port 112, and the outlet valve 6 is used to control the connection or disconnection of the second flushing pipe 4 with the water tank 2; wherein, a second water pump (not shown in the figure) is provided in the outlet valve 6, and the outlet valve 6 is provided with a first water inlet 611 at the water inlet end of the second water pump, and a third flushing pipe 64 is provided at the water outlet end of the second water pump, and the water outlet end of the third flushing pipe 64 is communicated with the water inlet end of the second flushing pipe 4.

[0030] When the toilet of this embodiment is flushed, the first water pump 7 drives water into the first flush pipe 3, and the water flow of the first flush pipe 3 passes through the first flush port 111 to circle the toilet bowl 11. Since the first water pump 7 is always below the liquid level of the water tank 2, the water in the water tank 2 and the shell of the water tank 2 can shield the noise generated by the operation of the first water pump 7, and the first flush pipe 3 is connected to the first flush port 111 after passing through the water tank 2. The vibration of the first flush pipe 3 increases the attenuation of sound propagation after passing through the water in the water tank 2, the shell of the water tank 2, the air, and the multiple media in the toilet body 1, thereby achieving noise reduction. In addition, the water outlet valve 6 is connected to the toilet bowl 11 through the first flush port 111. Water from the second flush pipe 4 and the third flush pipe 64 is directly sprayed toward the sewage elbow at the bottom of the toilet bowl 11. By arranging the second water pump in the outlet valve 6 in the water tank 2, the noise generated by the operation of the second water pump can be shielded after passing through the outlet valve 6 housing, water, the water tank 2 housing, and the various media in the toilet body 1. In addition, the water outlet end of the third flush pipe 64 is connected to the water inlet end of the second flush pipe 4, so that the flushing water can fill the second flush pipe 4 more promptly and the gas in the second flush pipe 4 can be discharged in time, thereby avoiding the noise caused by the bursting of bubbles generated by the mixture of water and gas in the pipe due to the failure of the second flush pipe 4 to be filled and drained in time.

[0031] Specifically, the water tank 2 of this embodiment includes a first cavity 21 and a second cavity 22. The first and second cavities 21, 22 are arranged side by side within the first installation cavity 12 behind the toilet bowl 11. The water inlet valve 5 and the water outlet valve 6 are both located within the first cavity 21, and the first water pump 7 is connected to the bottom of the first cavity 21. The second cavity 22 protrudes from one side of the first cavity 21 and communicates with the first cavity 21. The cross-sectional area of ​​the second cavity 22 is smaller than that of the first cavity 21, and the distance between the first cavity 21 and the toilet bowl 11 is smaller than the distance between the second cavity 22 and the toilet bowl 11. The second cavity 22 is used to provide piping space for the first flush pipe 3 and is preferably located on the side of the water inlet valve 5 away from the water outlet valve 6. The first cavity 21 is provided with a first cavity wall 211 on the side closest to the toilet bowl 11, and the second cavity 22 is provided with a second cavity wall 221 on the side closest to the toilet bowl 11. The second cavity wall 221 is located away from the toilet bowl 11 from the first cavity wall 211. The second cavity wall 221 is provided with a through hole 222 for the first flush pipe 3 to pass through. The axis of the through hole 222 is located above the axis of the first flush port 111. The structural design of the water tank 2 ensures that, regardless of changes in the liquid level within the water tank 2, as long as the first water pump 7 remains below the liquid level, even if the water tank 2 is full of water, the first flush pipe 3 can pass through various media before passing through the first flush port 111, thereby reducing noise transmission.

[0032] The first flushing pipe 3 specifically includes a first pipe section 31, a second pipe section 32, and an elbow joint 33. The elbow joint 33 includes a horizontal section and a downward curved section. The horizontal section is inserted into the through hole 222 of the second cavity wall 221. The downward curved section is located within the water tank 2. One end of the downward curved section is connected to the horizontal section, and the other end extends downward. The elbow joint 33 is located within the through hole 222. One end of the first pipe section 31 is connected to the horizontal section of the elbow joint 33, and the other end is connected to the first flushing port 111. One end of the second pipe section 32 is connected to the downward curved section of the elbow joint 33, and the other end bypasses the water inlet valve 5 and connects to the first water pump 7. The second pipe section 32 bypasses the water inlet valve 5, meaning that the water inlet valve 5 is surrounded by the second pipe section 32 in an angle exceeding 180°. The second pipe section 32 is more stretched within the water tank 2, which can reduce water displacement resistance, extend the pipe length, and further help reduce noise. The first flushing water pipe 3 is divided into three parts, namely a first pipe section 31 , a second pipe section 32 and an elbow joint 33 , which are connected in sequence. This reduces the transmission of pipeline vibration caused by the first water pump 7 and helps to weaken the vibration and sound transmission of the first flushing water pipe 3 .

[0033] The outlet valve 6 of this embodiment specifically includes a valve cover 61, a valve seat 62, and a sealing member 63. The valve cover 61 is provided with a second installation cavity (not shown in the figure) and a third installation cavity 612, the first water inlet 611 is connected to the second installation cavity, and the second water pump is provided in the second installation cavity. Among them, the first water inlet 611 is provided at the bottom of the second installation cavity, and the first water inlet 611 is formed with a filter screen to filter impurities such as particulate matter in advance at the water inlet end of the second water pump to ensure the safe operation of the second water pump. The valve seat 62 is provided with a second water outlet 621 opposite to the third installation cavity 612, and the valve seat 62 or the valve cover 61 is provided with a second water inlet 622 located on the periphery of the second water outlet 621. The third installation cavity 612 is provided with a first driving member for driving the sealing member 63 to close or open the second water outlet 621.

[0034] The inner diameter of the second flush pipe 4 in this embodiment is approximately 2.5 to 3.5 times that of the first flush pipe 3. The second water outlet 621 is larger in diameter than the second flush pipe 4, and the second water inlet 622 surrounds the second water outlet 621, ensuring rapid drainage. Tests have shown that this embodiment's toilet can remove wastewater with a power of 13 test notes, roughly doubling the power of a conventional flush mechanism, which can remove wastewater with a power of 7 test notes.

[0035] The third flushing pipe 64 of this embodiment includes a third pipe section 641, a fourth pipe section 642 and a fifth pipe section 643. The third pipe section 641 is connected to the valve cover 61 or is formed on the valve cover 61. The fourth pipe section 642 is connected to the valve seat 62 or is formed on the valve seat 62. The fourth pipe section 642 runs through the valve seat 62. When the valve cover 61 is connected to the valve seat 62, the third pipe section 641 is connected to the fourth pipe section 642. The fifth pipe section 643 is arranged in the valve seat 62 and is connected to the fourth pipe section 642.

[0036] Regarding the third pipe section 641, in this embodiment, a first water outlet 613 and a limiting hole 614 are provided on the valve cover 61. One end of the third pipe section 641 is connected to the first water outlet 613, and the other end passes through the limiting hole 614 and is connected to the fourth pipe section 642. The line connecting the center of the second water outlet 621 to the center of the limiting hole 614 and the line connecting the center of the second water outlet 621 to the center of the first water outlet 613 are at an angle of 100° to 180°. This allows the third pipe section 641 to be more stretched, reduces water displacement resistance, and reduces the noise generated by the second water pump.

[0037] The fourth pipe section 642 connects to the fifth pipe section 643 below the second water outlet 621. The outlet of the fifth pipe section 643 communicates with the inlet of the second flushing pipe 4, and the outlet of the fifth pipe section 643 is located in the straight section of the second flushing pipe 4. The water flow rate of the third flushing pipe 64 is approximately 1 / 5 of the water flow rate of the second flushing pipe 4. In other words, the vast majority (approximately 80%) of the water in the second flushing port 112 is supplied by the water flowing from the second water outlet 621 of the valve seat 62 to the second flushing pipe 4. This portion of water utilizes the gravity of the high-flow water flow to achieve bottom flushing.

[0038] To ensure that the first water pump 7 and the second water pump can always operate below the liquid level of the water tank 2, this embodiment preferably provides a water level sensor (not shown in the figure) in the water tank 2, and the water level sensor is arranged above the first water pump 7 and the second water pump. The water level sensor is connected to the first water pump 7 and the second water pump to shut down the first water pump 7 and the second water pump when the water level drops to the water level sensor.

[0039] Preferably, the water inlet valve 5 of this embodiment adopts a mechanical water replenishment structure, which includes a float and a water replenishment port for replenishing water into the water tank 2. The float automatically closes or opens the water replenishment port as the water level rises and falls, allowing automatic water replenishment with the help of tap water pressure, avoiding the water pump driving noise during the water replenishment process. By adjusting the starting position of the float of the water inlet valve 5, it is also possible to achieve automatic water replenishment starting at a water level above the first water pump 7 and the second water pump, ensuring that the first water pump 7 and the second water pump are always below the liquid level.

[0040] When a mechanical water replenishment inlet valve 5 is selected, the tap water on the wall is connected to the water inlet valve 5 of the water tank 2. The tap water enters the water tank 2 through the water inlet valve 5 under the action of water pressure. When the water level reaches a certain height, the float of the water inlet valve 5 slowly rises due to the buoyancy of the water until the float rises to a certain position to block the water replenishment port, cutting off the tap water from entering the water tank 2. At this time, the water level of the water tank 2 is full.

[0041] When the user finishes using the toilet and turns on the flush command or operation, the first water pump 7 pumps water and flushes it out through the first flush pipe 3 and the first flush port 111 to flush the dirt on the wall of the toilet bowl 11 to the bottom; since the first water pump 7 is buried in the water tank 2, the water in the water tank 2 and the outer shell of the water tank 2 can shield the noise generated when the water pump is working.

[0042] After the first water pump 7 pumps water for about 1 second, the water outlet valve 6 is also opened to flush the second flush outlet 112, so that the dirt flushed down from the toilet bowl 11 and the dirt at the bottom are flushed into the sewage bend pipe; after the first flush outlet 111 and the second flush outlet 112 flush for 4 seconds at the same time, the water outlet valve 6 closes the flushing; the first water pump 7 continues to pump water for about 1 second, so that the first flush outlet 111 continues to flush to achieve water seal replenishment at the bottom of the toilet bowl 11. The water flow power of the second flush port 112 is derived from the gravity of the water flowing through the second water outlet 621 of the flush valve when the seal 63 is opened, and the water driving power of the second water pump that is simultaneously turned on. Approximately 80% of the water flow in the second flush port 112 is supplied by the second water outlet 621, and the remaining approximately 20% is supplied by the second water pump. The flush valve sinks due to the gravity of the tap water in the water tank 2, and operates synchronously with the assistance of the second water pump. The flush valve, its second water pump, and the third flush pipe 64 are also located inside the water tank 2. The water in the water tank 2 and the outer shell of the water tank 2 can shield the noise generated by the operation of the second water pump.

[0043] The flushing noise of the toilet of this embodiment is ≤45 decibels during the entire flushing process, which is lower than the noise of existing jet flushing toilets.

[0044] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A silent flush toilet, characterized in that: The toilet comprises a toilet body, a water tank, a first flushing pipe and a second flushing pipe. The toilet body is provided with a toilet bowl and a first installation cavity that are separated. The water tank is arranged in the first installation cavity. The upper part of the toilet bowl is provided with a first flushing port, and the bottom of the toilet bowl is provided with a second flushing port. The water tank is provided with a water inlet valve, a water outlet valve, and a first water pump. The water inlet valve is used to replenish water to the water tank. The first water pump is always located below the liquid level of the water tank. One end of the first flushing pipe is connected to the first water pump, and the other end passes through the water tank and is connected to the first flushing port; The two ends of the second flushing pipe are respectively connected to the water outlet valve and the second flushing port, and the water outlet valve is used to control the connection or disconnection of the second flushing pipe with the water tank; In which, a second water pump is provided in the water outlet valve, and a first water inlet is provided at the water inlet end of the second water pump, and a third flushing water pipeline is provided at the water outlet end of the second water pump, and the water outlet end of the third flushing water pipeline is connected to the water inlet end of the second flushing water pipeline.

2. The silent flush toilet according to claim 1, characterized in that: The water tank includes a first cavity and a second cavity. The water inlet valve and the water outlet valve are both arranged in the first cavity. The second cavity is connected to the first cavity. A first cavity wall is provided on the side of the first cavity close to the toilet bowl, and a second cavity wall is provided on the side of the second cavity close to the toilet bowl. The second cavity wall is provided in the direction of the first cavity wall away from the toilet bowl. The second cavity wall is provided with a through hole for the first flush pipe to pass through.

3. The silent flush toilet according to claim 2, characterized in that: The first flushing pipe includes a first pipe section, a second pipe section and an elbow joint. The elbow joint is arranged in the through hole. One end of the first pipe section is connected to the horizontal section of the elbow joint, and the other end is connected to the first flushing port. One end of the second pipe section is connected to the lower bend section of the elbow joint, and the other end is connected to the first water pump after bypassing the water inlet valve.

4. The silent flush toilet according to claim 1, characterized in that: The water outlet valve includes a valve seat, a valve cover, and a sealing member. The valve cover is provided with a second installation cavity and a third installation cavity. The first water inlet is connected to the second installation cavity. The second water pump is arranged in the second installation cavity. The valve seat is provided with a second water outlet opposite to the third installation cavity. The valve seat or the valve cover is provided with a second water inlet located on the periphery of the second water outlet. The third installation cavity is provided with a first driving member for driving the sealing member to close or open the second water outlet.

5. The silent flush toilet according to claim 4, characterized in that: The third flushing pipeline includes a third pipe section, a fourth pipe section and a fifth pipe section. The third pipe section is connected to the valve cover or is formed on the valve cover. The fourth pipe section is connected to the valve seat and passes through the valve seat or is formed on the valve seat. When the valve cover is connected to the valve seat, the third pipe section is connected to the fourth pipe section. The fifth pipe section is arranged in the valve seat and is connected to the fourth pipe section.

6. The silent flush toilet according to claim 4, characterized in that: The first water inlet is arranged at the bottom of the second installation cavity, and the first water inlet is provided with a filter.

7. The silent flush toilet according to claim 5, characterized in that: The valve cover is provided with a first water outlet and a limiting hole. One end of the third pipe section is connected to the first water outlet, and the other end passes through the limiting hole and is connected to the fourth pipe section. The angle between the line from the center of the second water outlet to the center of the limiting hole and the line from the center of the second water outlet to the center of the first water outlet is 100° to 180°.

8. The silent flush toilet according to claim 5, characterized in that: The position where the fourth pipe section is connected to the fifth pipe section is located below the second water outlet.

9. The silent flush toilet according to claim 1, characterized in that: A water level sensor is provided in the water tank, and the water level sensor is provided above the first water pump and the second water pump. The water level sensor is connected to the first water pump and the second water pump to shut down the first water pump and the second water pump when the water level drops to the water level sensor.

10. The silent flush toilet according to claim 1, characterized in that: The water inlet valve includes a float and a water supply port for supplying water into the water tank. The float rises and falls with the water level to automatically close or open the water supply port.

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