A flushing system and toilet

By placing the water pump externally in the water storage container and adopting an anti-siphon design, the structural complexity and high cost caused by the water pump setting in smart toilets are solved, achieving cost reduction and improved control flexibility.

CN224549278UActive Publication Date: 2026-07-24XIAMEN HUIERJIE SANITARY WARE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN HUIERJIE SANITARY WARE TECH CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-24

Smart Images

  • Figure CN224549278U_ABST
    Figure CN224549278U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of flushing system and closestool, flushing system includes water storage container, water pump and flushing pipeline, the bottom of the water storage container or the side wall close to bottom is equipped with water outlet hole;The water pump is placed outside the water storage container, and the water inlet of the water pump is communicated with the water outlet hole of the water storage container;The flushing pipeline includes drain pipeline and wash pipeline;The water outlet of the water pump is provided with two, and is drain water outlet and wash outlet respectively, the drain water outlet is communicated with drain pipeline, and the wash outlet is communicated with wash pipeline.The utility model places water pump outside water storage container, water pump does not need to be fixed in water storage container, can simplify the structure of water storage container, beneficial to its forming, in addition, there is also no fixed water pump to damage water storage container and lead to leakage problem.In addition, because water pump is placed outside water storage container, motor and wiring on water pump do not need to be immersed in water, so lower-grade water pump of waterproof insulation can be used, beneficial to reduce cost.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, and in particular to a flushing system and a toilet. Background Technology

[0002] To facilitate intelligent control, smart toilets typically use a water pump for flushing, located at the bottom of the toilet's water storage unit. As an electric component, the water pump requires excellent waterproofing and insulation due to its operating environment, which increases equipment costs. Furthermore, since the pump is located within the water storage unit, it needs to be secured; otherwise, it can generate significant noise. Therefore, a connection point for fixing the pump is required within the water storage unit, and the design of this connection point must also consider the waterproofing of the water tank. There are essentially two types of toilet water storage units: one is a recessed water chamber integrally molded with the toilet body, and the other is an injection-molded water tank separate from the toilet body. However, regardless of the type of water storage unit, the inclusion of a connection point increases the complexity of the water storage unit's structure and manufacturing process. Utility Model Content

[0003] The purpose of this utility model is to provide a flushing system and toilet that can simplify the structure of the toilet water storage container and reduce the waterproof insulation level requirements of the water pump, thereby saving costs.

[0004] To achieve the above objectives, this utility model discloses a flushing system, which includes a water storage container, a water pump, and a flushing pipe. The water storage container has a water outlet on its bottom or a side wall near the bottom. The water pump is placed outside the water storage container, and the water inlet of the water pump is connected to the water outlet of the water storage container. The flushing pipe includes a drainage pipe and a washing pipe. The water pump has two outlets, namely a drainage outlet and a washing outlet, the drainage outlet being connected to the drainage pipe, and the washing outlet being connected to the washing pipe.

[0005] With the above setup, by placing the water pump externally within the water storage container, the pump no longer needs to be fixed inside, simplifying the container's structure and facilitating its molding. Furthermore, it eliminates the risk of leakage caused by the pump damaging the container. Additionally, because the pump is externally located, the motor and wiring do not need to be submerged, allowing for the use of pumps with lower waterproof insulation ratings, thus reducing costs.

[0006] Preferably, the water pump includes a pump body, a motor, and an impeller. The pump body has a pump chamber, and the inlet, outlet, and scrubbing outlet are all located on the pump body, communicating with the pump chamber. The impeller is built into the pump chamber, and the motor drives the impeller to rotate. The motor can rotate in a first direction or a second direction. When the first direction is clockwise, the second direction is counterclockwise; when the first direction is counterclockwise, the second direction is clockwise. The direction of the outlet corresponds to the water flow direction when the motor rotates in the first direction, and the direction of the scrubbing outlet corresponds to the water flow direction when the motor rotates in the second direction. With this configuration, the water output from the outlet and scrubbing outlet can be controlled by rotating the motor in both directions. For example, scrubbing can be performed first, followed by drainage, and scrubbing can be performed simultaneously, or scrubbing can be performed first, followed by drainage. This control is convenient, eliminates the need for an additional water flow on / off structure, simplifies the pump structure, and reduces manufacturing and maintenance costs.

[0007] Only the drainage pipe is equipped with an anti-siphon inlet; the anti-siphon inlet is connected to a water storage container through a pipe, and the connection point between the pipe and the water storage container is set higher than the working water level of the water storage container; or, the anti-siphon inlet is connected to a washing pipe; the outlet of the washing pipe is set higher than the working water level of the water storage container.

[0008] Alternatively, both the drainage pipe and the washing pipe are equipped with anti-siphon ports, and the anti-siphon ports are connected to the water storage container through pipes, with the connection point between the pipes and the water storage container being higher than the working water level of the water storage container.

[0009] By installing an anti-siphon outlet, water can be prevented from continuing to flow through the flush pipe after flushing (i.e., after the water pump stops) due to the siphon effect, thus avoiding water waste. Water from the anti-siphon outlet returns to the storage container, ensuring the toilet does not leak.

[0010] Preferably, the water storage container is provided with a return port for communication with the anti-siphon inlet. The return port extends through the inside and outside of the water storage container and is set above the working water level of the water storage container. This design facilitates the connection of the overflow pipe.

[0011] Preferably, the system further includes a pipe fitting, which has a first straight pipe, a second straight pipe, and a connecting pipe, the connecting pipe connecting the first and second straight pipes; the first straight pipe is connected in series to the drain pipe, and the second straight pipe is connected in series to the flushing pipe; the pipe fitting is positioned above the working water level of the water storage container; the connecting pipe serves as an anti-siphon inlet for the drain pipe. The pipe fitting facilitates the installation of the anti-siphon inlet, ensuring reliable communication between the corresponding anti-siphon inlet of the drain pipe and the flushing pipe, preventing leakage from the anti-siphon inlet. Additionally, the pipe fitting can also serve as a fixed node in the middle section of the flushing pipe, ensuring connection between the pipe fitting and the toilet body, thus improving the stability of the flushing pipe.

[0012] Preferably, the second straight pipe is installed parallel to or higher than the first straight pipe. This arrangement ensures that siphoning is prevented in drainage pipes, as drainage pipes are most prone to siphoning.

[0013] Preferably, the water storage container is further provided with a container inlet, and the container inlet is equipped with an inlet valve. This arrangement facilitates the control of water inflow into the water storage container and the stability of the working water level.

[0014] This utility model also discloses a toilet using the above-mentioned flushing system, which includes a toilet body, and the water storage container of the flushing system is a water tank or a sunken water chamber provided on the toilet body; the toilet body also includes a toilet chamber, the wall of the toilet chamber is provided with a washing hole, the bottom of the toilet chamber is provided with a drain outlet, and the flushing pipe connects the washing hole and the drain outlet.

[0015] This utility model has the following beneficial effects:

[0016] This invention places the water pump externally within the water storage container, eliminating the need for the pump to be fixed inside. This simplifies the container's structure and facilitates its molding. Furthermore, it eliminates the problem of leakage caused by damaging the container when the pump is fixed in place. Additionally, because the pump is externally located, the motor and wiring do not need to be submerged in water, allowing for the use of a pump with a lower waterproof insulation rating, thus reducing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of Example 1.

[0018] Figure 2 This is a schematic diagram of the flushing system in Example 1.

[0019] Figure 3 This is a schematic diagram of the flushing system from another perspective in Example 1.

[0020] Figure 4 This is a schematic diagram of the water pump in Example 1.

[0021] Figure 5This is a cross-sectional view of the water pump in Example 1.

[0022] Figure 6 This is a schematic diagram of the water outlet cover in Example 1.

[0023] Figure 7 This is a cross-sectional view of the water outlet cover in Embodiment 1.

[0024] Figure 8 This is a schematic diagram of the water pump's outlet in Example 1 (when the motor rotates in the first direction).

[0025] Figure 9 This is a schematic diagram of the water pump's outlet in Example 1 (when the motor rotates in the second direction).

[0026] Figure 10 This is a schematic diagram of the flushing system in Example 2.

[0027] Figure 11 This is a schematic diagram of the pipe fitting in Example 2.

[0028] Figure 12 This is a cross-sectional view of the pipe fitting in Example 2.

[0029] Explanation of symbols for main components:

[0030] 1: Water pump; 10: Pump body; 11: Outlet cover; 14: Pump chamber; 15: Inlet; 191: Drain outlet; 192: Washing outlet; 2: Motor; 3: Impeller; 42: Pipe fitting; 421: First straight pipe; 422: Second straight pipe; 423: Connecting pipe; 52: Drain pipe; 53: Anti-siphon outlet; 54: Overflow pipe; 6: Washing pipe; 7: Inlet valve; 8: Toilet body; 81: Toilet chamber; 811: Washing hole; 812: Sewage outlet; 82: Water tank; 822: Outlet pipe; 823: Return outlet; 824: Outlet hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] Example 1

[0033] like Figure 1-9 As shown, this embodiment discloses a toilet, which includes a toilet body 8, a toilet chamber 81, a plurality of washing holes 811 on the wall surface of the toilet chamber 81, and a drain outlet 812 at the bottom of the toilet chamber 81. The toilet in this embodiment uses the following flushing system.

[0034] Specifically, the flushing system includes a water storage container, a water pump 1, and a flushing pipe. The water storage container can be a water tank 82 installed on the toilet body 8 or a recessed water cavity integrally formed with the toilet body 8. In this case, the water tank 82 will be used as the water storage container. An installation cavity is provided on the toilet body 8, and the flushing system is installed in the installation cavity.

[0035] The water storage container is equipped with a container inlet and an outlet 824. An inlet valve 7 is installed at the container inlet to facilitate water intake control and maintain a stable working water level. The outlet 824 is located at the bottom of the water storage container or on a side wall near the bottom. A water pump 1 is placed outside the water storage container, and its inlet 15 is connected to the outlet 824 via an outlet pipe 822. The water pump 1 has two outlets: a drain outlet 191 and a flushing outlet 192. The flushing pipes include a drain pipe 52 and a flushing pipe 6. The drain outlet 191, drain pipe 52, sewage outlet 812, and toilet chamber 81 are connected in sequence, as are the flushing outlet 192, flushing pipe 6, and flushing hole 811.

[0036] By placing the water pump 1 externally within the water storage container, the water pump 1 does not need to be fixed inside the container, simplifying the container's structure and facilitating its molding. Furthermore, it eliminates the problem of water pump 1 damaging the container and causing leaks. Additionally, because the water pump 1 is externally located within the container, the motor 2 and wiring on the water pump 1 do not need to be submerged in water, allowing for the use of a water pump 1 with a lower waterproof insulation rating, thus reducing costs.

[0037] In this embodiment, only the drainage pipe 52 is equipped with an anti-siphon port 53, which connects to the cavity of the drainage pipe 52. An overflow pipe 54 is connected to the anti-siphon port 53, and the anti-siphon port 53 is connected to the water storage container through the overflow pipe 54. A return port 823 connected to the overflow pipe 54 can be provided on the water storage container. The return port 823 runs through the inside and outside of the water storage container, and the return port 823 is set higher than the working water level of the water storage container, thereby achieving the anti-siphon effect. The outlet of the washing pipe 6 is higher than the working water level of the water storage container, that is, the washing hole 811 is higher than the working water level of the water storage container, so that the washing pipe 6 will not have a siphon problem.

[0038] In this embodiment, the water pump 1 is also designed to achieve different water output controls. Specifically, the water pump 1 includes a pump body 10, a motor 2, and an impeller 3. The pump body 10 has a pump chamber 14. The water inlet 15, the drain outlet 191, and the scrubbing outlet 192 of the water pump 1 are all located on the outlet cover 1111 of the pump body 10, and the water inlet 15, the drain outlet 191, and the scrubbing outlet 192 of the water pump 1 are all connected to the pump chamber 14. The impeller 3 is built into the pump chamber 14, and the motor 2 drives the impeller 3 to rotate. The motor 2 can rotate in a first direction or a second direction. When the first direction is clockwise, the second direction is counterclockwise, and when the first direction is counterclockwise, the second direction is clockwise. The drain outlet 191 faces the direction of water flow when the motor 2 rotates in the first direction, while the wash outlet 192 faces the direction of water flow when the motor 2 rotates in the second direction. In this way, when the motor 2 rotates in the first direction, the drain outlet 191 flows more smoothly and can achieve a large flow of water, while the wash outlet 192 is less smooth and flows only a small flow of water or no water at all. When the motor 2 rotates in the second direction, the wash outlet 192 flows more smoothly and can achieve a large flow of water, while the drain outlet 191 is less smooth and flows only a small flow of water or no water at all. By controlling the forward and reverse rotation of motor 2, and taking into account factors such as motor speed, outlet diameter, and slight orientation deviation, the water output of drainage outlet 191 and washing outlet 192 can be controlled. For example, washing can be performed first, followed by drainage, and water can be output simultaneously, or washing can be performed first and then drainage (small flow of water output can be considered as no water output). The control is convenient, and there is no need to set up an additional water output on / off structure. The structure of water pump 1 is simpler, and the manufacturing and maintenance costs of water pump 1 are lower.

[0039] Example 2

[0040] like Figure 10-12 As shown, the difference between this embodiment and Embodiment 1 is that the anti-siphon port 53 on the drainage pipe 52 no longer uses the overflow pipe 54 to connect to the water storage container. Instead, the anti-siphon port 53 on the drainage pipe 52 connects to the washing pipe 6. The outlet of the washing pipe 6 is still set higher than the working water level of the water storage container. To facilitate connection, a pipe fitting 42 is added. This pipe fitting 42 has a first straight pipe 421, a second straight pipe 422, and a connecting pipe 423. The connecting pipe 423 connects the first straight pipe 421 and the second straight pipe 422. The first straight pipe 421 is connected in series to the drainage pipe 52 (that is, the drainage pipe 52 is divided into two sections, one of which is connected to one end of the first straight pipe 421, and the other end of the drainage pipe 52 is connected to the other end of the first straight pipe 421). The second straight pipe 422 is connected in series to the washing pipe 6 (connected in the same way as above). At this time, the connecting pipe 423 is the anti-siphon port 53 of the drainage pipe 52.

[0041] To ensure the anti-siphon effect and for ease of installation, it is preferable that the second straight pipe 422 is higher than the first straight pipe 421. Furthermore, the pipe connector 42 can also serve as a fixed node in the middle section of the flushing pipe, allowing the pipe connector 42 to connect to the toilet body 8, thus improving the stability of the flushing pipe. Of course, the second straight pipe 422 can also be parallel to the first straight pipe 421.

[0042] The advantage of this embodiment is that there is no need to set up an overflow pipe 54, and there is no need to set up a return port 823 on the water storage container.

[0043] Example 3

[0044] The difference between this embodiment and Embodiment 1 is that an anti-siphon port 53 is also provided on the flushing pipe 6, and this anti-siphon port 53 is also connected to the water storage container via an overflow pipe 54. The specific setting method can be referred to the drain pipe 52, and will not be described again. This setting can ensure that the flushing pipe will not have a siphon problem.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flushing system, characterized in that: The device includes a water storage container, a water pump, and a flushing pipe. The water storage container has a water outlet on its bottom or a side wall near the bottom. The water pump is located outside the water storage container, and its inlet is connected to the water outlet of the water storage container. The flushing pipe includes a drainage pipe and a washing pipe. The water pump has two outlets, a drainage outlet and a washing outlet, with the drainage outlet connected to the drainage pipe and the washing outlet connected to the washing pipe.

2. The flushing system according to claim 1, characterized in that: The water pump includes a pump body, a motor, and an impeller. The pump body has a pump chamber, and the inlet, outlet, and scrubbing outlet are all located on the pump body, connecting to the pump chamber. The impeller is built into the pump chamber, and the motor drives the impeller to rotate. The motor can rotate in a first direction or a second direction. When the first direction is clockwise, the second direction is counterclockwise; when the first direction is counterclockwise, the second direction is clockwise. The outlet faces the direction of the water flow when the motor rotates in the first direction, and the scrubbing outlet faces the direction of the water flow when the motor rotates in the second direction.

3. The flushing system according to claim 1, characterized in that: Only the drainage pipe is equipped with an anti-siphon inlet; the anti-siphon inlet is connected to a water storage container through a pipe, and the connection point between the pipe and the water storage container is set higher than the working water level of the water storage container; or, the anti-siphon inlet is connected to a washing pipe; the outlet of the washing pipe is set higher than the working water level of the water storage container. Alternatively, both the drainage pipe and the washing pipe are equipped with anti-siphon ports, and the anti-siphon ports are connected to the water storage container through pipes, with the connection point between the pipes and the water storage container being higher than the working water level of the water storage container.

4. The flushing system according to claim 3, characterized in that: The water storage container is provided with a return port for communicating with the anti-siphon inlet. The return port runs through the inside and outside of the water storage container and is set above the working water level of the water storage container.

5. The flushing system according to claim 3, characterized in that: It also includes a pipe fitting having a first straight pipe, a second straight pipe, and a connecting pipe, the connecting pipe connecting the first straight pipe and the second straight pipe; the first straight pipe is connected in series to the drainage pipe, and the second straight pipe is connected in series to the washing pipe; the pipe fitting is set above the working water level of the water storage container; the connecting pipe is an anti-siphon outlet of the drainage pipe.

6. The flushing system according to claim 5, characterized in that: The second straight pipe is set parallel to or higher than the first straight pipe.

7. The flushing system according to claim 1, characterized in that: The water storage container is also equipped with a container inlet, and the container inlet is equipped with an inlet valve.

8. A toilet using the flushing system according to any one of claims 1-7, characterized in that: The toilet includes a toilet body, and the water storage container of the flushing system is a water tank or a sunken water chamber installed on the toilet body; the toilet body also includes a toilet chamber, the wall of which is provided with a washing hole, and the bottom of which is provided with a drain outlet, and the flushing pipe connects the washing hole and the drain outlet.