A toilet drainage structure and toilet

Abstract

This utility model relates to the field of bathroom equipment technology, and more particularly to a drainage structure and toilet for a toilet, comprising: a drip tray for receiving leaked liquid from toilet water system components; and a drainage pipe connecting the drip tray to the toilet's water supply and drainage system, and for draining the liquid on the drip tray to the water supply and drainage system. This utility model uses a drip tray with a large holding area to collect and hold the leaked liquid, effectively accommodating it. The drainage pipe guides the leaked liquid in the drip tray to the water supply and drainage system for discharge. The drainage pipe is connected to the drain pipe, resulting in a cleaner overall drainage environment compared to connecting to a sewage pipe. It also reduces the likelihood of scale buildup at the one-way valve seal, thus preventing one-way valve failure and completely solving the problem of leaks in toilet water system components. This prevents leaks from damaging floor materials or causing dampness and odors on walls.

Description

Technical Field

[0001] This utility model generally relates to the field of bathroom equipment technology, and more specifically, to a toilet drainage structure and a toilet. Background Technology

[0002] Modern toilets are often equipped with bidets, which require backflow prevention mechanisms when supplied with tap water. Some use an "air gap" structure, which prevents sewage backflow, but leakage can still occur in this area during flushing. Additionally, after prolonged use, the rubber seals on the inlet and outlet valves of the toilet tank may age, or the seals at the connections may fail, leading to slow leaks or drips.

[0003] If these leaks are not properly handled, they will not only waste water resources but also wet the floor, potentially damaging floor materials or causing dampness in the walls, affecting the cleanliness and dryness of the bathroom environment. Furthermore, leaks in these areas can cause unpleasant odors to spread, polluting indoor air and causing numerous problems for users. Therefore, better solutions are urgently needed to address these issues.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The present invention includes a series of simplified concepts, which will be further explained in detail in the detailed description section. This present invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] One of the main objectives of this utility model is to overcome at least one of the defects of the prior art and to provide a drainage structure for a toilet and a toilet.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] According to one aspect of the present invention, a flushing structure for a toilet is provided, disposed in the toilet, comprising:

[0009] A drip tray is used to collect leaks from toilet water system components;

[0010] A drain pipe connects the drip tray to the toilet's water supply and drainage system, and is used to drain liquid from the drip tray to the water supply and drainage system.

[0011] Preferably, a one-way valve assembly is provided between the drain pipe and the water receiving tray; or, a one-way valve assembly is provided between the drain pipe and the water supply and drainage system.

[0012] Preferably, the toilet includes a toilet bowl, and the water supply and drainage system includes a drain pipe. The drain pipe has a first opening that connects to a drain pipe, and a second opening that connects to the toilet bowl or an external water receiving device.

[0013] Preferably, the toilet also includes a drain pipe, which is connected to the toilet bowl. The drain pipe is used to guide the liquid on the drip tray to the drain pipe and then to the toilet bowl, and finally to the drain pipe.

[0014] Preferably, the toilet includes a toilet bowl, and the water supply and drainage system includes a flushing pipe. One end of the flushing pipe is connected to a water source, and the other end is connected to the toilet bowl. The flushing pipe is used to introduce flushing water to flush the toilet bowl. The flushing pipe has an independent drainage pipe inside, with a second opening connected to the toilet bowl and a first opening connected to a drain pipe for diverting liquid from the drip tray to the drainage pipe.

[0015] Preferably, the water supply and drainage system includes a drainage pipe, which is connected to a diversion pipe through a first opening. The drainage pipe is also provided with a second opening for drainage, and the lowest point of the second opening is not higher than the valve core sealing surface of the one-way valve assembly.

[0016] Preferably, the one-way valve assembly is disposed in the water receiving tray, and the water receiving tray has a water receiving opening and a water receiving outlet;

[0017] The one-way valve assembly includes:

[0018] The mounting housing has a water inlet and a water outlet, the water inlet being connected to a water receiving opening and the water outlet being connected to a water receiving outlet.

[0019] A swing block is rotatably connected inside the mounting housing; a sealing gasket is provided on the swing block to seal the water inlet, and the sealing gasket is detachably installed on the side of the swing block near the water inlet; or, the sealing gasket is integrally formed and connected to the swing block; or, the swing block is composed of a sealing gasket.

[0020] The pendulum has a first position and a second position. When the pendulum is in the first position, the pendulum is separated from the water inlet. When the pendulum is in the second position, the pendulum seals the water inlet with a sealing gasket.

[0021] Preferably, a flow-blocking block is provided between the bottom of the mounting housing and the swing block and / or the sealing gasket, the flow-blocking block being used to prevent water from flowing back and impacting the swing block; and / or, water overflow from the inlet caused by the gap between the sealing gasket and the mounting housing around the inlet.

[0022] Preferably, the toilet water system components include an air shut-off valve having an open drain outlet, and the drip tray is used to collect leaks from the air shut-off valve.

[0023] According to one aspect of the present invention, a toilet is provided, employing the drainage structure of the toilet as described in any of the above claims, comprising: an air barrier having an open drain outlet, a water receiving tray disposed below the drain outlet, the air barrier having an open cavity, the two ends of the open cavity being respectively connected to a water spray pipe and a clean water pipe, the open cavity having a guide plate inside, the guide plate being provided with flow holes, the open cavity having an inlet and an outlet respectively connected to the water spray pipe and the clean water pipe, the inlet, outlet, and flow holes being coaxially arranged.

[0024] As can be seen from the above technical solution, the advantages and positive effects of the toilet's drainage structure and the toilet itself are as follows:

[0025] 1. This utility model uses a large-area water collection tray to collect and hold leaked liquid, effectively accommodating the leaked liquid and solving the problem of inadequate handling of leaks in toilet water system components in existing technologies. This prevents leaks from damaging floor materials or causing dampness and odors on walls. This utility model uses a drainage pipe to guide the leaked liquid in the water collection tray to the water supply and drainage system for discharge. The drainage pipe is connected to the drainage pipe. Compared with the existing technology where technicians are accustomed to directly connecting each drainage pipe to the sewage pipe, the overall drainage environment is cleaner and less prone to scale buildup at the one-way valve seal, thus avoiding the problem of one-way valve failure.

[0026] 2. The drainage structure of this utility model can drain the water from the drip tray to the toilet bowl surface. The one-way valve can prevent water in the drain pipe from flowing back to the drip tray. The drain pipe is located inside the flushing pipe and is integrated with the flushing pipe, making the overall structure more compact. The drain pipe and the flushing pipe are independently separated. The separation design reduces water backflow in the drain pipe, further reducing the risk of backflow. In addition, the drainage pipe is less likely to accumulate scale at the one-way valve seal, thus avoiding the problem of one-way valve failure.

[0027] 3. The sealing function of this utility model has better stability and durability. The second opening of the drain pipe is lower than the valve core sealing surface, which can prevent the water surface height from reaching the installation housing and causing long-term scale buildup in the installation housing of the one-way valve assembly, thus ensuring long-term stable operation.

[0028] 4. The structural design of this utility model is simple and practical: its structure is simple and easy to install. While achieving effective diversion and anti-backflow functions, it is convenient for production, installation and maintenance, thereby enhancing the practical value and market competitiveness of the product.

[0029] 5. In this utility model, a flow-blocking block is set between the bottom of the mounting housing and the swing block. The flow-blocking block is used to prevent the water from flowing back and impacting the swing block and the gap between the bottom of the seal and the bottom of the water inlet around the mounting housing, causing sewage to overflow from the water inlet. Attached Figure Description

[0030] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0031] Figure 1 This is a three-dimensional partial cross-sectional view of an exemplary embodiment of this application.

[0032] Figure 2 yes Figure 1 Enlarged view of part A in the image.

[0033] Figure 3 This is a three-dimensional partial cross-sectional view of a water-blocking backflow embodiment of this application.

[0034] Figure 4 yes Figure 3 Enlarged view of part B in the image.

[0035] Figure 5 This is a partial cross-sectional view of an exemplary embodiment of this application.

[0036] Figure 6 This is an exploded view of a one-way valve assembly according to an exemplary embodiment of this application.

[0037] The reference numerals in the attached figures are explained as follows:

[0038] 100 - Water receiving tray, 110 - Water receiving opening, 120 - Water receiving outlet;

[0039] 200-drainage tube;

[0040] 300 - Flushing pipe, 310 - Drainage pipe, 312 - Water outlet, 313 - First opening, 314 - Second opening;

[0041] 400-One-way valve assembly, 410-Mounting housing, 411-Inlet, 412-Outlet, 420-One-way valve upper housing, 421-Connecting protrusion, 422-First screw, 423-Second screw, 430-One-way valve bottom housing, 440-Swing block, 450-Sealing gasket, 460-Flow throttling block;

[0042] 500 - Air isolation device, 510 - Drain outlet, 520 - Open cavity, 521 - Baffle plate, 522 - Flow hole, 523 - Inlet, 524 - Outlet;

[0043] 600 - Toilet, 610 - Toilet bowl, 620 - Sewage pipe. Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0045] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0046] like Figures 1-2As shown, this embodiment provides a drainage structure for a toilet, including: a drip tray 100 for receiving leakage from the water system components of the toilet 600; and a drainage pipe 200 connecting the drip tray 100 to the water supply and drainage system of the toilet 600, and for draining liquid from the drip tray 100 to the water supply and drainage system. It is understood that the drip tray 100 has a certain horizontal projected area, enabling it to collect leakage from the water system components above over a wider area. The water system components can be any of the following: an air barrier 500, a water tank, a water pipe, a water replenishment device, etc., installed in the toilet 600. In this embodiment, the water system component is an air barrier 500 located above the drip tray 100. The air barrier 500 has an open drain outlet 510, and the drip tray 100 is used to receive leakage from the air barrier. This embodiment uses a large-area water tray 100 to collect and hold the leaked liquid, effectively accommodating the leaked liquid and solving the problem that leakage from toilet water system components in the prior art cannot be properly handled. This avoids leakage from damaging floor materials or causing damp walls and odors.

[0047] In some embodiments, such as Figures 1-3 As shown, a one-way valve assembly 400 is provided between the drainage pipe 200 and the water receiving tray 100; or, a one-way valve assembly 400 is provided between the drainage pipe 200 and the water supply and drainage system. In this embodiment, the one-way valve assembly 400 is located between the drainage pipe 200 and the water receiving tray 100, specifically, it is located within the water receiving tray 100. The one-way valve assembly 400 can prevent water in the drainage pipe 310 from flowing back to the water receiving tray 100, thus avoiding sewage overflow from the water supply and drainage system and causing pollution. The one-way valve assembly 400 is preferably a butterfly one-way valve or a ball one-way valve.

[0048] In some embodiments, the toilet 600 includes a toilet bowl 610, and the water supply and drainage system includes a drain pipe 310. The drain pipe 310 is provided with a first opening 313 that communicates with a drain pipe 200, and the drain pipe 310 is provided with a second opening 314 that communicates with the toilet bowl 610 or an external water receiving device. The drain pipe 310 can be an independently installed drain pipe 310 on the toilet 600, connected only to the drain pipe 200 for water intake, and draining the water in the drain pipe 200 to the toilet bowl 610 or an external water receiving device. The external water receiving device can be an additional device independent of the toilet 600, such as a basin. The drain pipe 310 is directly connected to the drain pipe 200, and through the pipe design, it directly or indirectly discharges water outside the toilet 600 for collection by the external water receiving device. Alternatively, the drain pipe 310 can be directly designed into the ceramic body of the toilet 600 to the side wall of the body, with a second opening 314 in the side wall, from which wastewater flows directly. Or, a plastic water connector can be connected to the second opening 314 of the drain pipe 310, and the plastic connector can be connected to the outside through a pipe hole drilled in the body of the toilet 600. The drain pipe 310 is not directly connected to the sewage pipe 620. Furthermore, the toilet 600 includes a sewage pipe 620, a drain pipe 310 connected to the toilet bowl 610, and a drain pipe 200 for diverting liquid from the drip tray 100 to the drain pipe 310 and then to the toilet bowl 610, from the toilet bowl 610 to the sewage pipe 620. Water is directly drained to the toilet bowl 610 and then discharged from the toilet 600 via the sewage pipe.

[0049] In some embodiments, such as Figure 2 As shown, the toilet includes a toilet bowl 610, and the water supply and drainage system includes a flushing pipe 300. One end of the flushing pipe 300 is connected to a water source, and the other end is connected to the toilet bowl 610. The flushing pipe 300 is used to introduce flushing water to flush the toilet bowl 610. The flushing pipe 300 has an independent drain pipe 310 inside. The drain pipe 310 has a second opening 314 connected to the toilet bowl 610, and a first opening 313 connected to the drain pipe 200, which is used to drain the liquid on the water tray 100 to the drain pipe 310. In this embodiment, the drainage pipe 310 is independently installed inside the flushing pipe 300. The drainage pipe 310 is installed against the wall of the main body of the flushing pipe 300. The drainage pipe 310 and the flushing pipe 300 are integrated, making the overall structure more compact. The drainage pipe 310 and the flushing pipe 300 are independently separated. The separation design reduces water backflow in the drainage pipe 310 and further reduces the risk of backflow.

[0050] In some embodiments, such as Figures 1-4As shown, the water supply and drainage system includes a drainage pipe 310, which is connected to a drain pipe 200 through a first opening 313. In this embodiment, a water outlet 312 is provided at the first opening, and the drain pipe 200 is mounted on it and connected to the first opening 313. The drainage pipe 310 is also provided with a second opening 314 for drainage. The lowest point of the second opening 314 is set at a height not higher than the valve core sealing surface of the one-way valve assembly 400. In this embodiment, there is a height difference H between the two. It can be understood that the height of the valve core sealing surface of the one-way valve assembly 400 is higher than the lowest point of the second opening 314 of the drainage pipe 310, which can control the height of the water surface and prevent the water surface from reaching the valve core sealing surface. This avoids long-term accumulation of scale on the water surface at the valve core sealing surface of the one-way valve assembly 400, which affects the seal and ensures long-term stable operation. In this embodiment, as shown... Figure 3 , Figure 4 As shown, the valve core sealing surface not higher than the one-way valve assembly 400 refers to the valve core sealing surface where the lowest point of the second opening 314 is at least lower than the lowest point where the sealing gasket 450 and the mounting housing 410 achieve a seal.

[0051] In some embodiments, such as Figures 1-5 As shown, the one-way valve assembly 400 is disposed within the water receiving tray 100, which has a water receiving opening 110 and a water receiving outlet 120. The one-way valve assembly 400 includes: a mounting housing 410 having an inlet 411 and an outlet 412, the inlet 411 communicating with the water receiving opening 110 and the outlet 412 communicating with the water receiving outlet 120; a swing block 440 rotatably connected to the interior of the mounting housing 410; a sealing gasket 450 is provided on the swing block 440 for sealing the inlet 411, which is detachably mounted on the side of the swing block 440 near the inlet 411; or, the sealing gasket 450 is integrally formed and connected to the swing block 440; or, the swing block 440 is composed of the sealing gasket 450. The swing block 440 has a first position and a second position. When the swing block 440 is in the first position, it is separated from the inlet 411. When the swing block 440 is in the second position, it seals the inlet 411 with a sealing gasket 450. In this embodiment, the mounting housing 410 includes a one-way valve upper housing 420 and a one-way valve bottom housing 430. The one-way valve upper housing 420 has a connecting protrusion 421 on its side, which is locked to the water receiving tray 100 by a first screw 422. The upper side of the one-way valve upper housing 420 is locked to the water receiving tray 100 by a second screw 423. The one-way valve bottom housing 430 is fitted to the lower part of the one-way valve upper housing 420. The upper end of the swing block 440 has a rotating shaft, which is installed in the upper notch of the one-way valve bottom housing 430 and is clamped and positioned by the one-way valve upper housing 420. Among them, the sealing gasket 450 on the swing block 440 is the valve core sealing surface, and the sealing gasket 450 is detachably installed on the side of the swing block 440 near the water inlet 411.

[0052] When the water in the drain pipe 310 is blocked due to being located in the flush pipe 300 or the toilet 600 being blocked, and backflow occurs because it is connected to the toilet bowl 610, the sewage inside the drain pipe 310 will flow back along the drain pipe 200 into the mounting housing 410 of the one-way valve assembly 400. At this time, the sewage cannot push away the sealing gasket 450 and the swing block 440. At this time, the swing block 440 is in the second position, and the sealing gasket 450 forms a seal with the mounting housing 410, so the sewage cannot flow back into the water receiving pan 100.

[0053] In some embodiments, such as Figure 2 As shown, the area of ​​the swing block 440 is larger than the area of ​​the outlet 412. It is understandable that the larger area of ​​the swing block 440 helps to cover the outlet 412 and the sealing gasket 450, thereby improving the sealing effect.

[0054] In some embodiments, such as Figure 1 As shown, a flow-blocking block 460 is provided between the bottom of the mounting housing 410 and the swing block 440 and / or the sealing gasket 450. The flow-blocking block 460 is used to prevent water from overflowing from the inlet 411 due to water backflow impacting the gap between the swing block 440 and / or the sealing gasket 450 and the mounting housing 410 around the inlet 411. In this embodiment, the flow-blocking block 460 is provided between the bottom of the mounting housing 410 and the bottom of the swing block 440 and the sealing gasket 450. The flow-blocking block 460 is used to prevent water from overflowing from the inlet 411 due to water backflow impacting the gap between the bottom of the swing block 440 and the sealing gasket 450 and the mounting housing 410 around the bottom of the inlet 411. The flow-blocking block can prevent the problem of sewage overflowing from the inlet due to water backflow impacting the gap between the bottom of the swing block and the sealing gasket and the mounting housing around the bottom of the inlet. Of course, in other embodiments, the swing block can be made of a sealing gasket. In this case, the flow-blocking block can prevent the water from flowing back up and impacting the gap between the bottom of the sealing gasket and the bottom of the inlet housing, causing sewage to overflow from the inlet.

[0055] like Figures 1-5As shown, this embodiment provides a toilet 600, including: an air isolation device 500, and a drainage structure as described in any of the above embodiments is provided below the air isolation device 500. Specifically, the air isolation device 500 has an open drain outlet 510, and a water tray 100 is located below the drain outlet 510. It is understood that some existing toilets 600 are equipped with a bidet for washing the human body. When the bidet is directly supplied with water from a tap water pipe, an air isolation device 500 is often installed as an anti-backflow mechanism to prevent backflow when there is negative pressure in the tap water pipe. However, when the bidet is spraying water on the human body, water often leaks from the air isolation device 500. To prevent the leaked water from wetting the floor, this embodiment uses the drain outlet 510 to collect the leaked water from the air isolation device 500 and drain it into the water tray 100. The drainage structure of the water tray 100 guides the leaked water into the water supply and drainage system for discharge, thereby completely solving the leakage problem.

[0056] In some embodiments, such as Figure 2 As shown, the air isolation device 500 has an open cavity 520, with a water spray pipe and a clean water pipe connected to its two ends respectively. The air isolation device 500 has a vent on the side opposite to the water receiving tray 100.

[0057] In some embodiments, such as Figure 2 As shown, the open cavity 520 has at least two guide plates 521 inside, and the guide plates 521 are provided with flow holes 522. The open cavity 520 is provided with an inlet 523 and an outlet 524 that are respectively connected to the water spray pipe and the clean water pipe. The inlet 523, the outlet 524, and the flow holes 522 are coaxially arranged.

[0058] It should be understood that the various examples described above can be utilized in multiple directions (e.g., tilted, inverted, horizontal, vertical, etc.) and in multiple configurations without departing from the principles of this invention. The embodiments shown in the accompanying drawings are merely examples of effective application of the principles of this invention, and the invention is not limited to any specific details of these embodiments.

[0059] Of course, upon careful consideration of the above description of the representative embodiments, those skilled in the art will readily understand that various modifications, additions, substitutions, deletions, and other changes can be made to these specific embodiments, and that such changes are within the scope of the principles of this invention. Therefore, the foregoing detailed description should be clearly understood as being given by way of illustration and example only, and the spirit and scope of this invention are defined solely by the appended claims and their equivalents.

Claims

1. A toilet drainage structure provided in a toilet, characterized by comprising: include: A drip tray (100) for receiving leaks from toilet water system components; a drain pipe (200) connecting the drip tray (100) to the toilet's water supply and drainage system and for draining liquid from the drip tray (100) to the water supply and drainage system.

2. A toilet drainage arrangement according to claim 1, wherein: A one-way valve assembly (400) is provided between the drain pipe (200) and the water receiving tray (100); or, a one-way valve assembly (400) is provided between the drain pipe (200) and the water supply and drainage system.

3. A toilet drainage arrangement according to claim 1 or 2, wherein: The toilet includes a toilet bowl (610), and the water supply and drainage system includes a drain pipe (310). The drain pipe (310) is provided with a first opening (313) connected to a drain pipe (200), and the drain pipe (310) is provided with a second opening (314) connected to the toilet bowl (610) or an external water receiving device.

4. A toilet drainage arrangement according to claim 3, wherein: The toilet also includes a drain pipe (620), the drain pipe (310) is connected to the toilet bowl (610), and the drain pipe (200) is used to drain the liquid on the water tray (100) to the drain pipe (310) and discharge it to the toilet bowl (610) through the drain pipe (310), and then discharge it to the drain pipe (620) through the toilet bowl (610).

5. A toilet drainage arrangement as claimed in claim 1 or 2, wherein: The toilet includes a toilet bowl (610), and the water supply and drainage system includes a flushing pipe (300). One end of the flushing pipe (300) is connected to a water source, and the other end of the flushing pipe (300) is connected to the toilet bowl (610). The flushing pipe (300) is used to introduce flushing water to flush the toilet bowl (610). The flushing pipe (300) has an independent drainage pipe (310) inside. The drainage pipe (310) has a second opening (314) connected to the toilet bowl (610), and a first opening (313) connected to a drain pipe (200) for diverting liquid from the water receiving tray (100) to the drainage pipe (310).

6. A toilet drainage arrangement according to claim 2, wherein: The water supply and drainage system includes a drainage pipe (310), which is connected to the drain pipe (200) through a first opening (313). The drainage pipe (310) is also provided with a second opening (314) for drainage. The lowest point of the second opening (314) is not higher than the valve core sealing surface of the one-way valve assembly (400).

7. A toilet drainage arrangement according to claim 2, wherein The one-way valve assembly (400) is disposed in the water receiving tray (100), which has a water receiving opening (110) and a water receiving outlet (120). The one-way valve assembly (400) includes: The mounting housing (410) has an inlet (411) and an outlet (412), the inlet (411) being connected to a water inlet (110) and the outlet (412) being connected to a water outlet (120); A swing block (440) is rotatably connected to the inside of the mounting housing (410); a sealing gasket (450) is provided on the swing block (440) for sealing the water inlet (411), and the sealing gasket (450) is detachably installed on the side of the swing block (440) near the water inlet (411); or, the sealing gasket (450) is integrally formed and connected to the swing block; or, the swing block (440) is composed of the sealing gasket (450); The swing block (440) has a first position and a second position. When the swing block (440) is in the first position, the swing block (440) is separated from the water inlet (411). When the swing block (440) is in the second position, the swing block (440) seals the water inlet (411) through the sealing gasket (450).

8. A toilet drainage arrangement according to claim 7, wherein: A flow-blocking block (460) is provided between the bottom of the mounting housing (410) and the swing block (440) and / or the sealing gasket (450), the flow-blocking block (460) being used to prevent water from flowing back and impacting the swing block (440); and / or, water overflow from the inlet (411) caused by the gap between the sealing gasket (450) and the mounting housing (410) around the inlet (411).

9. A toilet drainage arrangement according to claim 1, wherein: The toilet water system components include an air breaker (500) having an open drain outlet (510) and a drip tray (100) for receiving leaks from the air breaker (500).

10. A toilet employing the drainage structure of any one of claims 1 to 9, characterized by, include: An air cutoff device (500) has an open drain outlet (510), a water receiving tray (100) located below the drain outlet (510), an open cavity (520) with a water spray pipe and a clean water pipe connected to both ends of the open cavity (520), a guide plate (521) inside the open cavity (520) with a flow passage hole (522) on the guide plate (521), and an inlet (523) and an outlet (524) connected to the water spray pipe and the clean water pipe respectively. The inlet (523), outlet (524) and flow passage hole (522) are coaxially arranged.

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