Toilet with water guide and water channel
Patent Information
- Application Number
- CN202521878589.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-02
AI Technical Summary
[0004]本实用新型是为了解决水道中残余水流会持续、缓慢地沿水道流入便池内并会在便池内造成水痕的技术问题，提供了一种具有导水附水道的马桶
[0025] The beneficial effects of this utility model are as follows: by opening an overflow hole and a drainage channel in the main flushing channel of the toilet, the flushing effect of the toilet is not interfered with in the early stage of flushing, and in the late stage of flushing, the residual water in the channel is completely drained into the water storage pit, so that the residual water in the channel will no longer enter the toilet bowl, thus avoiding the formation of watermarks in the toilet bowl.
Smart Images
Figure CN224717183U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sanitary ware, specifically the field of toilets, and specifically relates to a toilet with a water guiding channel. Background Technology
[0002] When the toilet is flushed, external water flows in from the toilet's inlet and is directed along the water channels around the toilet bowl. The water channels converge the water flow to the flushing hole, forming a jet with flushing force. This jet then enters the toilet bowl at a specific angle and pressure, flushing the inner wall of the bowl and pushing the waste in the bowl towards the drain outlet at the bottom. This quickly flushes the waste into the drain pipe, achieving the desired sewage discharge.
[0003] However, after a single flush, the high-flow-rate water consumes most of its kinetic energy to flush away waste, leaving insufficient force to effectively clean and cover the remaining water in the toilet bowl. This residual water continues to flow slowly and persistently into the bowl, creating prolonged localized flow in the same area and causing repeated wetting of specific areas on the bowl's inner wall. Over time, this leaves stubborn stains on the bowl's surface, affecting its appearance and reducing the efficiency of subsequent flushes, ultimately impacting the overall waste removal effect. Utility Model Content
[0004] This invention addresses the technical problem of residual water continuously and slowly flowing into the toilet bowl, causing watermarks. It provides a toilet with a water-guiding channel. By setting an overflow hole at the end of the main flushing channel and guiding the residual water directly to the water storage basin through a drainage channel, it prevents the water from flowing into the toilet bowl and forming watermarks. This ensures both effective flushing and waste removal while maintaining a clean and aesthetically pleasing toilet bowl.
[0005] The technical solution adopted by this utility model is as follows: a toilet with a water guiding channel is provided, including a toilet bowl, a flushing hole on the toilet bowl, a water storage pit at the bottom of the toilet bowl, the water storage pit being connected to a sewage pipe, a main flushing channel being provided around the toilet bowl, one end of the main flushing channel being connected to the flushing hole, and the other end being connected to the toilet's water inlet, an overflow hole being provided at the bottom of the inner end of the main flushing channel, the overflow hole being connected to a drainage channel, the drainage channel extending downward in a vertical direction and being connected to the water storage pit.
[0006] When the toilet is flushed, water flows along the main flush channel and is flushed into the toilet bowl through the flush hole to clean and remove waste. The overflow hole at the end of the main flush channel allows some of the water to flow into the diversion channel, which assists the flush hole in flushing and removing waste. At the end of the flush, the overflow hole intercepts the water flow in the channel to prevent residual water from flowing into the toilet bowl through the flush hole, thus preventing watermarks from forming in the toilet bowl.
[0007] To further optimize this technical solution, the overflow hole is located between the water inlet and the flushing hole, and close to the flushing hole. The inlet cross-sectional area of the overflow hole is smaller than the cross-sectional area of the main flushing channel, and the water flow rate of the overflow hole is 1%-49% of the water flow rate of the main flushing channel.
[0008] The overflow hole is located between the water inlet and the flushing hole, which facilitates the interception of the final water flow in the waterway. Moreover, the water flow rate of the overflow hole is less than that of the main flushing waterway, so it does not affect the flushing and sewage discharge of the toilet bowl by the main flushing waterway.
[0009] To further optimize this technical solution, the inlet flow rate of the overflow hole is 3%-20% of the main flushing water flow rate.
[0010] When the inflow rate of the overflow hole is 3%-20% of the main flushing water flow rate, the overflow hole will not interfere with the flushing and sewage discharge effect of the main flushing water on the toilet.
[0011] To further optimize this technical solution, the overflow hole adopts a gradually narrowing structure, and the outlet cross-sectional area is not greater than the initial cross-sectional area of the drainage channel; or adopts a gradually widening structure, and the outlet cross-sectional area is not greater than the initial cross-sectional area of the drainage channel; or adopts a straight-through structure with equal cross-section, and the cross-sectional area of the overflow hole is not greater than the initial cross-sectional area of the drainage channel.
[0012] The overflow hole's gradually narrowing structure accelerates the water flow by progressively narrowing its cross-section, causing residual water to flow quickly into the drainage channel. The gradually widening structure buffers the impact of the water flow and reduces the disturbance of the water storage pit. The uniform cross-section straight-through structure ensures a smooth water flow transition and avoids the generation of local eddies. All three structures can ensure efficient water flow guidance.
[0013] To further optimize this technical solution, the cross-section of the drainage channel is circular, elliptical, or polygonal, with a cross-sectional area of 10-970 mm².
[0014] The diverse cross-sectional shapes of the drainage channels can adapt to different toilet designs and installation spaces, as well as meet the drainage needs of different flushing power and residual water volume, enhancing structural compatibility and practicality.
[0015] To further optimize this technical solution, the drainage channel is attached to the outer wall of the toilet bowl and extends downward along the outer wall of the toilet bowl, and the downward extension path of the drainage channel is curved, with its radius of curvature consistent with the arc of the outer wall of the toilet bowl.
[0016] The curved channel matches the curvature of the toilet bowl's outer wall, reducing resistance caused by abrupt changes in the water flow path and improving the smoothness of the flow. At the same time, the design that fits the outer wall saves internal space in the toilet, making the structure more compact and the appearance cleaner.
[0017] To further optimize this technical solution, the wall adjacent to the toilet bowl and the drainage channel are shared walls, which together form the outer wall of the toilet bowl and the inner wall of the drainage channel.
[0018] The drainage channel and the wall adjacent to the toilet bowl are shared walls, allowing the drainage channel to be integrally molded during production, reducing mold complexity.
[0019] To further optimize this technical solution, the common wall surface of the drainage channel and the toilet bowl is a smooth arc transition, and the opposite wall surface of the drainage channel and the common wall surface is also a smooth arc transition.
[0020] Smooth, rounded transitions eliminate right-angle corners in the water flow path, reducing water flow resistance and turbulence, minimizing impurity adhesion and residue, and the rounded surface is less prone to dirt buildup, improving the cleanliness of the toilet over long-term use.
[0021] To further optimize this technical solution, the outlet of the diversion channel connected to the water storage pit is located 0-51mm above the water surface of the water storage pit.
[0022] When the outlet of the drainage channel is above the water surface of the water storage pit, gravity can be used to naturally drain the water, avoiding back pressure from the water seal of the water storage pit on the channel and ensuring that the residual water is discharged quickly.
[0023] To further optimize this technical solution, the outlet of the diversion channel connected to the water storage pit is located 0-155mm below the water surface of the water storage pit.
[0024] When the outlet of the diversion channel is located below the water surface of the water storage pit, the residual water flow can be directly mixed into the water body of the water storage pit, enhancing the flushing effect on the stains in the water storage pit. The underwater connection method can use the water body to close the end of the channel, further isolating odors and reducing flushing noise.
[0025] The beneficial effects of this utility model are as follows: by opening an overflow hole and a drainage channel in the main flushing channel of the toilet, the flushing effect of the toilet is not interfered with in the early stage of flushing, and in the late stage of flushing, the residual water in the channel is completely drained into the water storage pit, so that the residual water in the channel will no longer enter the toilet bowl, thus avoiding the formation of watermarks in the toilet bowl. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the rear structure of the toilet structure in Embodiment 1 and Embodiment 2; Figure 2 These are front structural diagrams of the toilet structures in Embodiment 1 and Embodiment 2; Figure 3 This is a cross-sectional structural diagram of Example 1; Figure 4 This is a comparative experimental data graph of the toilet in Example 1; Figure 5 This is a cross-sectional structural diagram of Example 2.
[0027] In the diagram, 1 is the toilet bowl; 2 is the flushing hole; 3 is the drain pipe; 4 is the main flushing channel; 5 is the overflow hole; 6 is the drainage channel; 601 is the water outlet; 7 is the water storage pit; and 8 is the water inlet. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Example 1
[0029] Please see the appendix Figure 1-3 A toilet with a water guide channel includes a bowl 1, a water reservoir 7 at the bottom of the bowl 1 connected to a drain pipe 3, a flushing hole 2 on the bowl 1, and a main flushing channel 4 around the bowl 1. One end of the main flushing channel 4 is connected to the flushing hole 2, and the other end is connected to the toilet's water inlet 8. When the toilet is flushed, water from the tank or external water flow enters the main flushing channel 4 and flushes the inner wall of the bowl 1 through the flushing hole 2. When the toilet flushing hole 2 is flushed in the forward direction, the water flows along the inner wall of the bowl 1 from back to front in a swirling motion. When the toilet flushing hole 2 is flushed in the reverse direction, the water flows along the inner wall of the bowl 1 from front to back in a swirling motion. An overflow hole 5 is located at the bottom of the inner end of the main flushing channel 4, between the water inlet 8 and the flushing hole 2. The overflow hole 5 is located between and close to the flushing hole 2. When the flushing hole 2 is flushing in the forward direction, its main flushing channel 4 is shorter, so the distance between the overflow hole 5 and the flushing hole 2 is smaller. When the flushing hole 2 is flushing in the reverse direction, the main flushing channel 4 is longer, so the distance between the overflow hole 5 and the flushing hole 2 can be increased. The inlet cross-sectional area of the overflow hole 5 is smaller than the cross-sectional area of the main flushing channel 4. The inlet flow rate of the overflow hole 5 is 1%-49% of the water flow rate of the main flushing channel 4, and the optimal value of the inlet flow rate of the overflow hole 5 is 3%-20% of the water flow rate of the main flushing channel 4. The overflow hole 5 is connected to the drainage channel 6, which extends vertically downward and is connected to the water storage pit 7. This embodiment takes the reverse flushing of the flushing hole 2 as an example (e.g. Figure 2 As shown, the drainage channel 6 is located on the front of the toilet bowl 1, and the outlet 601 of the drainage channel 6 and the water storage pit 7 is located 0-51 mm above the water surface of the water storage pit 7. That is, the outlet 601 of the drainage channel 6 is set upward after being flush with the water surface of the water storage pit 7. The water flow can fall naturally by gravity and is not hindered by the water seal pressure, ensuring that the residual water in the drainage channel 6 can be discharged quickly and completely. During flushing, in the initial stage (high flow rate), the water in the main flushing channel 4 flows through the overflow hole 5. Because the inlet cross-sectional area of the overflow hole 5 is smaller than that of the main flushing channel 4, most of the water in the main flushing channel 4 continues to flow at high speed along its original path towards the flushing hole 2. This ensures the flushing force and coverage of the inner wall of the toilet bowl 1, guaranteeing the flushing effect. At the same time, only a small portion of the water flows through the overflow hole 5 into the drainage channel 6. This avoids weakening the flushing pressure due to excessive diversion of the water flow in the main flushing channel 4, and also creates a local flow restriction effect by utilizing the size difference between the overflow hole 5 and the main flushing channel 4. The initial high-flow water is prioritized for flushing toilet bowl 1, while a small stream of water enters the drainage channel 6 through the overflow hole 5 and flows into toilet bowl 1, creating flushing force to assist the water flow in the main flushing channel 4 in flushing and discharging waste from toilet bowl 1. As the flushing progresses to the end (low-flow stage), the water pressure in the main flushing channel 4 decreases, and the residual water then flows smoothly into the water storage pit 7 through the overflow hole 5 and the drainage channel 6. This achieves a phased functional effect of "maintaining pressure during flushing and guiding residual water at the end." The water flow entering the drainage channel 6 during the initial flushing stage (high-flow stage) also has a certain flushing force and does not affect the flushing effect of the toilet. The overflow orifice 5 can adopt various structural forms, including a gradually narrowing structure with an outlet cross-sectional area not exceeding the initial cross-sectional area of the diversion channel 6; a gradually widening structure with an outlet cross-sectional area not exceeding the initial cross-sectional area of the diversion channel 6; or a constant cross-section straight-through structure with a cross-sectional area not exceeding the initial cross-sectional area of the diversion channel 6. The cross-section of the diversion channel 6 is circular, elliptical, or polygonal, with a cross-sectional area of 10-970 mm². The gradually narrowing structure accelerates the water flow by progressively narrowing the cross-section, thus promoting... Residual water flows quickly into the drainage channel 6, while the gradually widened structure buffers the impact of the water flow and reduces the disturbance of the water flow to the water storage pit 7. The uniform cross-section straight-through structure ensures a smooth water flow transition and avoids the generation of local eddies. All three structures can ensure efficient water flow guidance. The various cross-sectional shapes and sizes of the drainage channel 6 can be flexibly adjusted according to the overall structure of the toilet, the flushing flow rate, and user needs. For example, a circular cross-section has low water flow resistance and is suitable for rapid drainage, while a polygonal cross-section is easy to install against the wall of the toilet bowl 1, improving space utilization. The drainage channel 6 is attached to the outer wall of the toilet bowl 1 and extends downward along the outer wall of the toilet bowl 1. The downward extension path of the drainage channel 6 is curved, and its radius of curvature is consistent with the arc of the outer wall of the toilet bowl 1. The drainage channel 6 and the adjacent wall of the toilet bowl 1 are shared walls. This shared wall forms both the outer wall of the toilet bowl 1 and the inner wall of the drainage channel 6, so that the drainage channel 6 can be integrally formed during production, reducing the complexity of the mold. The shared wall of the drainage channel 6 and the toilet bowl 1 has a smooth arc transition, and the opposite wall of the drainage channel 6 and the shared wall also has a smooth arc transition, avoiding right-angle turns in the drainage channel 6 that would affect the drainage effect. In addition, the inner surface of the drainage channel 6 is covered with a hydrophobic layer or glaze layer, which reduces the resistance of water flow in the drainage channel 6 and makes the drainage smooth. Please see the appendix Figure 2-3 A novel toilet with a gradually narrowing overflow hole (5) and a polygonal cross-section drainage channel (6) was tested against a conventional toilet in an EN standard chamber. The experimental data are available in [reference needed]. Figure 4 The results showed that the new structure with water channel met the washing performance standards of the traditional structure, and performed better in subsequent water control and potassium permanganate dilution. The passability of toilet paper and MISO (simulated solids used to test toilet flushing capacity) was significantly improved, especially in extreme weight tests such as 700g and 800g. At the same time, the basic data such as full flush water consumption and half flush water consumption were consistent with the traditional structure, without increasing water costs. Therefore, the new structure not only optimizes water flow control, adapts to diverse usage needs, and enhances structural stability, but also reduces water residue on the toilet bowl wall, comprehensively improving the toilet user experience. Example 2
[0030] Please see the appendix Figure 1-2 and appendix Figure 5 Unlike Embodiment 1, the outlet 601 of the diversion channel 6, which connects to the water storage pit 7, is located 0-155mm below the water surface of the water storage pit 7. That is, the outlet 601 of the diversion channel 6 is set downward after being flush with the water surface of the water storage pit 7. After testing, when the outlet 601 is located below the water storage pit 7, the flushing effect does not change significantly, but the flushing noise is significantly reduced.
[0031] The working principle of this toilet with a water-guiding channel is as follows: When the toilet is flushed, the water flows along the main flush channel 4 and enters the toilet bowl 1 through the flush hole 2, flushing the inner wall of the toilet bowl 1 and removing waste. In the initial flushing stage (high flow rate), when the water flows through the overflow hole 5, because the inlet cross-sectional area of the overflow hole 5 is smaller than the cross-sectional area of the main flush channel 4, most of the water in the main flush channel 4 continues to flow at high speed along the original path towards the flush hole 2, ensuring the flushing force and coverage of the inner wall of the toilet bowl 1, and ensuring the flushing effect. At the same time, only a small portion of the water flows through the overflow hole 5 into the drainage channel 6. This avoids weakening the flushing pressure due to excessive diversion of the water flow in the main flush channel 4, and also utilizes the size difference between the overflow hole 5 and the main flush channel 4 to create a local flow restriction effect, ensuring that the initial high flow rate is preferentially used for flushing the toilet bowl 1. As the flushing progresses to the final stage (low flow phase), the water pressure in the main flushing channel 4 decreases, and the remaining water flows smoothly into the water storage basin 7 through the overflow hole 5 and the diversion channel 6, achieving a phased functional effect of "maintaining pressure during flushing and guiding residual water at the end." The outlet 601, which connects the diversion channel 6 to the toilet bowl 1, is positioned either above or below the water surface of the water storage basin 7, depending on usage requirements. When the outlet 601 is above the water surface of the water storage basin 7, the residual water in the diversion channel 6 can be quickly and thoroughly discharged. When the outlet 601 is below the water surface of the water storage basin 7, flushing noise can be reduced, improving user comfort.
Claims
1. A toilet with a water guide channel, comprising a commode (1), a flushing hole (2) provided on the commode (1), a water storage basin (7) provided at the bottom of the commode (1), the water storage basin (7) being connected to a drain pipe (3), and a main flushing channel (4) provided around the commode (1), one end of the main flushing channel (4) being connected to the flushing hole (2), and the other end being connected to the toilet's water inlet (8), characterized in that: An overflow hole (5) is provided at the bottom of the inner end of the main flushing channel (4). The overflow hole (5) is connected to a diversion channel (6). The diversion channel (6) extends downward in the vertical direction and is connected to a water storage pit (7).
2. The toilet with a water guiding channel according to claim 1, characterized in that: The overflow hole (5) is located between the water inlet (8) and the flushing hole (2) and is close to the flushing hole (2). The inlet cross-sectional area of the overflow hole (5) is smaller than the cross-sectional area of the main flushing channel (4), and the water flow rate of the overflow hole (5) is 1%-49% of the water flow rate of the main flushing channel (4).
3. The toilet with a water guiding channel according to claim 2, characterized in that: The inlet flow rate of the overflow hole (5) is 3%-20% of the flow rate of the main flushing channel (4).
4. The toilet with a water guiding channel according to claim 2, characterized in that: The overflow hole (5) adopts a gradually narrowing structure, and the outlet cross-sectional area is not greater than the initial cross-sectional area of the drainage channel (6); or adopts a gradually widening structure, and the outlet cross-sectional area is not greater than the initial cross-sectional area of the drainage channel (6); or adopts a straight-through structure with equal cross-section, and the cross-sectional area of the overflow hole (5) is not greater than the initial cross-sectional area of the drainage channel (6).
5. The toilet with a water guiding channel according to claim 4, characterized in that: The drainage channel (6) has a circular, elliptical, or polygonal cross-section with a cross-sectional area of 10-970 mm. 2 .
6. The toilet with a water guiding channel according to claim 1, characterized in that: The drainage channel (6) is attached to the outer wall of the toilet bowl (1) and extends downward along the outer wall of the toilet bowl (1). The downward extension path of the drainage channel (6) is curved, and its radius of curvature is consistent with the arc of the outer wall of the toilet bowl (1).
7. The toilet with a water guiding channel according to claim 6, characterized in that: The wall adjacent to the drainage channel (6) and the toilet bowl (1) is a shared wall, which simultaneously forms the outer wall of the toilet bowl (1) and the inner wall of the drainage channel (6).
8. The toilet with a water guiding channel according to claim 7, characterized in that: The common wall surface of the drainage channel (6) and the toilet bowl (1) is a smooth arc transition, and the other side wall surface opposite to the common wall surface of the drainage channel (6) is also a smooth arc transition.
9. The toilet with a water guiding channel according to claim 1, characterized in that: The outlet (601) of the diversion channel (6) and the water storage pit (7) is located 0-51mm above the water surface of the water storage pit (7).
10. The toilet with a water guiding channel according to claim 1, characterized in that: The outlet (601) of the diversion channel (6) connected to the water storage pit (7) is located 0-155mm below the water surface of the water storage pit (7).