Flushing system and closestool

Abstract

The utility model relates to a flushing system and a closestool. The flushing system comprises a water tank, a water pump, a drainage pipeline and a washing pipeline, the water pump is arranged in an inner cavity of the water tank and comprises a pump body, a motor and an impeller, a pump cavity, two water outlets and at least one water inlet are formed in the pump body, the impeller is arranged in the pump cavity, and the motor drives the impeller to rotate; at least one water outlet comprises a main opening and an auxiliary opening, and the main opening is communicated with the pump cavity; the direction of the main opening corresponding to the first water outlet is the water flow direction when the motor rotates in the first direction, and the direction of the main opening corresponding to the second water outlet is the water flow direction when the motor rotates in the second direction; a main opening corresponding to the first water outlet is communicated with one end of a drainage pipeline, a main opening corresponding to the second water outlet is communicated with one end of a washing pipeline, and the other ends of the drainage pipeline and the washing pipeline extend out of the water tank; an anti-siphon opening is at least formed in the drainage pipeline and communicated with an inner cavity of the water tank. Time-sharing water outlet can be achieved by controlling forward and reverse rotation of the water pump, control is convenient, and the structure is simple.

Description

Technical Field

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

[0002] Toilet flushing generally includes draining water and washing the walls of the toilet bowl. Currently, most smart toilets use a water pump to supply water, with the pump located at the bottom of the toilet tank.

[0003] Due to customer demand, some toilets require separate flushing and drainage operations. Based on existing pump structures, the approaches are essentially threefold: 1. Use separate pumps for flushing and drainage, controlling their operation at different times; 2. Use only one pump with two outlets (or a T-junction), and an internal on / off mechanism to control the flow of water from each outlet at different times; 3. Also use only one pump, with an external electronic switching valve for controlling the timed water flow. Approach 1 has higher equipment costs, consumes more power, and occupies more space in the toilet tank. Approaches 2 and 3 also suffer from increased equipment costs, more complex pump structures, and more potential points of failure. Utility Model Content

[0004] The purpose of this utility model is to provide a flushing system and toilet that only requires one water pump, and can achieve drainage and washing water output at different times by controlling the forward and reverse rotation of the water pump. It is easy to control and has a simple structure.

[0005] To achieve the above objectives, this utility model discloses a flushing system, which includes a water tank, a water pump, a drainage pipe, and a washing pipe.

[0006] The water pump is placed inside the water tank. The water pump includes a pump body, a motor and an impeller. The pump body is provided with a pump chamber, a first outlet, a second outlet and at least one inlet. The inlet is connected to the pump chamber. The impeller is built into the pump chamber and the motor drives the impeller to rotate.

[0007] Both the first and second water outlets include a main outlet, with both ends of the main outlet being open-ended and connected to the pump chamber. The orientation of the main outlet corresponding to the first water outlet is the direction of water flow when the motor rotates in a first direction, and the orientation of the main outlet corresponding to the second water outlet is the direction of water flow when the motor rotates in a second direction. The first and second directions are opposite. At least one of the first and second water outlets has a secondary outlet on the main outlet corresponding to the first water outlet. Both ends of the secondary outlet are open-ended and connected to the main outlet. The connection point between the secondary outlet and the main outlet is located on the side of the main outlet closer to the connection end of the pump chamber.

[0008] The main outlet corresponding to the first water outlet connects to one end of the drain pipe, and the main outlet corresponding to the second water outlet connects to one end of the wash pipe. The other ends of the drain pipe and the wash pipe extend to the outside of the water tank. All the auxiliary outlets connect to the inner cavity of the water tank. At least the drain pipe is provided with an anti-siphon port, and the anti-siphon port connects to the inner cavity of the water tank. The anti-siphon port is set higher than the working water level of the water tank. When the position of the wash outlet on the toilet is higher than the working water level in the water tank, an anti-siphon port is not required on the wash pipe; only the drain pipe needs to be equipped with an anti-siphon port.

[0009] With the above setup, when the motor rotates in the first direction (e.g., clockwise), water mainly flows from the main outlet corresponding to the first outlet (high flow rate), while the main outlet corresponding to the second outlet either does not flow or flows at a low flow rate. Conversely, when the motor rotates in the second direction (e.g., counterclockwise), water mainly flows from the main outlet corresponding to the second outlet (high flow rate), while the main outlet corresponding to the first outlet either does not flow or flows at a low flow rate. This allows for time-sharing water flow between the main outlets of the first and second outlets simply by controlling the motor's forward and reverse rotation. Control is convenient, and the main outlets do not require additional on / off mechanisms, resulting in a simpler structure and lower pump manufacturing and maintenance costs. Furthermore, because the pump is located in the water tank, all auxiliary outlets are connected to the tank, and the anti-siphon outlet is also connected to the tank, there is no water loss in the tank, and the impact on the main outlet's flow rate is minimal. In addition, the flushing system described above has a simple structure and is easy to assemble and maintain.

[0010] Preferably, the opening of the main port is parallel to the tangent direction of the outer edge of the pump cavity, or is set at an angle α to the tangent direction, wherein the angle α ≤ 30°; the opening of the secondary port is perpendicular to or inclined to the opening of the corresponding main port.

[0011] Preferably, both the drainage pipe and the washing pipe include an inner pipe, a connecting fitting, and an outer pipe. The inner pipe is placed inside the water tank, and the outer pipe is placed outside the water tank. The inner pipe is connected to the outer pipe via the connecting fitting. The connecting fitting is integrally formed with the water tank, or the connecting fitting is detachably connected to the tank wall, or the connecting fitting is independent of the water tank. The anti-siphon port is provided on the connecting fitting. This configuration makes the connection between the drainage pipe and the washing pipe more convenient and stable, and less likely to interfere with the installation of other supporting components. Furthermore, by placing the anti-siphon port on the connecting fitting, the anti-siphon port will not deform due to pipe bending, effectively preventing anti-siphon port failure.

[0012] Preferably, an "L"-shaped bend is provided above the connecting pipe fitting, one end of which connects to the inner cavity of the connecting pipe fitting, and the other end of which is an anti-siphon inlet. This arrangement ensures that the anti-siphon inlet is connected to the water tank, and water from the anti-siphon inlet is less likely to splash outside the water tank.

[0013] Preferably, the water tank has a through-hole in the tank wall, and the outer diameter of the connecting pipe is adapted to the diameter of the mounting hole. The connecting pipe is inserted into the mounting hole. Both the outer pipe and the inner pipe are inserted into the connecting pipe. The outer pipe, the bend, and the mounting hole cooperate to confine the connecting pipe to the tank wall. Alternatively, the outer pipe, the inner pipe, and the mounting hole cooperate to confine the connecting pipe to the tank wall. This arrangement ensures the stability of the drainage pipe and the washing pipe installation and facilitates assembly.

[0014] Preferably, both the drainage pipe and the washing pipe comprise a continuous pipe, which is independent of the water tank, or the pipe penetrates the wall of the water tank; the anti-siphon outlet is an opening on the pipe, which connects to the pipe cavity, and the opening faces the inner cavity of the water tank. This arrangement of the drainage pipe and washing pipe results in a simpler structure.

[0015] Preferably, the water pump is detachably connected to the bottom of the inner cavity of the water tank. This arrangement ensures the stability of the water pump's position and guarantees reliable water intake during operation.

[0016] Preferably, the water tank is provided with a water supply port, and the water supply port is provided with a water inlet valve. This configuration makes it convenient to replenish the water tank.

[0017] Preferably, the cross-sectional area of ​​the main inlet is larger than that of the secondary inlet, the depth of the pump chamber is greater than the diameter of the main inlet, and the opening orientation of the secondary inlet is set at an angle b to the corresponding opening orientation of the main inlet, where 30°≤b≤150°; the centerline of the secondary inlet passes through the center of the cross-section of the pump chamber. This arrangement ensures that when water is discharged from the main inlet, the corresponding secondary inlet discharges water at a small flow rate, reducing the impact of the secondary inlet's discharge on the main inlet's discharge, and ensuring the water pressure or flow rate at the main inlet.

[0018] Preferably, at least one guide member is further provided on the inner wall of the pump chamber, and the guide member is correspondingly provided with at least one outlet; the guide member is located on the rear side of the outlet in the direction of rotation, the front end face of the guide member is at an angle to the corresponding outlet, and the outer surface of the guide member is an arc-shaped guiding surface, the thickness of the front end face of the arc-shaped guiding surface is greater than the thickness of the rear end face. The provision of the guide member can increase the head of its corresponding outlet.

[0019] Preferably, the pump body includes an outlet cover and a pump housing, the outlet cover and the pump housing are detachably and sealed together, and the outlet cover and the pump housing cooperate to form a pump cavity; the inlet is located at one end of the outlet cover, and the outlet is located on the side wall of the outlet cover; the motor is detachably connected to the pump housing, or the pump housing and the motor are integrally formed.

[0020] A connecting frame is provided inside the water inlet of the water outlet cover. The end of the connecting frame has an assembly hole. The motor is fixedly connected to the impeller, and the shaft of the motor is connected to the assembly hole of the connecting frame.

[0021] The impeller includes a first connecting plate, a second connecting plate, and a plurality of blades evenly disposed between the first connecting plate and the second connecting plate. The first connecting plate has an opening in the middle, the diameter of which is larger than the diameter of the water inlet, and the end of the opening is provided with an arc-shaped guide surface for guiding the water flow.

[0022] Preferably, the water tank is provided with an overflow port. The overflow port is used to connect to the toilet bowl cavity. The overflow port allows overflowing water to enter the toilet bowl cavity and be discharged when the water level in the water tank is abnormal, thereby ensuring the cleanliness of the toilet installation site.

[0023] This utility model also discloses a toilet using the above-mentioned flushing system, which includes a toilet body, the toilet body including a toilet chamber and a water storage component, the water storage component being configured as the water tank of the flushing system; the toilet chamber has several washing holes on its wall surface, and a drain outlet is provided at the bottom of the toilet chamber; the drain pipe connects to the toilet chamber through the drain outlet, and the washing pipe connects to the washing holes. By using the water storage component (such as a sunken water chamber or a raised water tank) built into the toilet body as the water tank of the flushing system of this utility model, it is easier to modify the flushing system of this utility model onto existing toilets, making the modification more convenient.

[0024] In addition, this utility model also discloses another toilet using the above-mentioned flushing system, which includes a toilet body, the toilet body including a toilet bowl cavity and an installation cavity, and the water tank of the flushing system is disposed in the installation cavity; the wall surface of the toilet bowl cavity is provided with several washing holes, the bottom of the toilet bowl cavity is provided with a drain outlet, the drain pipe is connected to the toilet bowl cavity through the drain outlet, and the washing pipe is connected to the washing holes. This arrangement...

[0025] This utility model has the following beneficial effects:

[0026] This invention, when the motor rotates in a first direction (e.g., clockwise), prioritizes water flow (high flow rate) from the main outlet corresponding to the first outlet, while the main outlet corresponding to the second outlet either does not flow or flows at a low flow rate. Conversely, when the motor rotates in a second direction (e.g., counterclockwise), prioritizes water flow (high flow rate) from the main outlet corresponding to the second outlet, while the main outlet corresponding to the first outlet either does not flow or flows at a low flow rate. This allows for time-sharing water flow from the main outlets of the first and second outlets by controlling the motor's forward and reverse rotation. Control is convenient, and the main outlets do not require additional on / off mechanisms, resulting in a simpler structure and lower manufacturing and maintenance costs for the water pump. Furthermore, the aforementioned flushing system is simple in structure, easy to assemble and maintain. Because the water pump is located in the water tank, all auxiliary outlets are connected to the tank, and the anti-siphon outlet is also connected to the tank, there is no water loss in the tank, and the impact on the water flow rate from the main outlet is minimal. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of Example 1.

[0028] Figure 2 This is a cross-sectional view of Example 1.

[0029] Figure 3 This is a schematic diagram of the water pump in Example 1.

[0030] Figure 4 This is a schematic diagram of the water pump from another perspective in Example 1.

[0031] Figure 5 This is a cross-sectional view of the pump body in Example 1.

[0032] Figure 6 This is an exploded view of the water pump in Example 1.

[0033] Figure 7 This is a partial cross-sectional view of the water pump in Example 1.

[0034] Figure 8 This is a schematic diagram of the connection between the impeller and the motor rotor in Example 1.

[0035] Figure 9 This is a schematic diagram of the water outlet cover in Example 1.

[0036] Figure 10 This is a cross-sectional view of the water outlet cover in Embodiment 1 (a diagram showing the water flow direction when the motor rotates clockwise).

[0037] Figure 11 This is a cross-sectional view of the water outlet cover in Embodiment 1 (a diagram showing the water flow direction when the motor rotates counterclockwise).

[0038] Figure 12 This is a schematic diagram of Example 5.

[0039] Figure 13 This is a schematic diagram of Example 6.

[0040] Figure 14 This is a partial cross-sectional view of Example 6.

[0041] Figure 15 This is a schematic diagram of the water outlet cover in Example 8.

[0042] Figure 16 This is a cross-sectional view of the water outlet cover in Example 8 (a diagram showing the water flow direction when the motor rotates clockwise).

[0043] Figure 17 This is a schematic diagram of Example 9.

[0044] Figure 18 This is a schematic diagram of Example 10.

[0045] Explanation of symbols for main components:

[0046] Water tank 10, inlet valve 11, overflow port 12;

[0047] Water pump 20, water outlet cover 21, connecting bracket 211, assembly hole 212, pump casing 22, pump chamber 23, water inlet 24, first main inlet 251, first auxiliary inlet 252, second main inlet 261, second auxiliary inlet 262, reference tangent 27, motor 28, rotor 281, shaft 282, impeller 29, first connecting plate 291, second connecting plate 292, blade 293, arc-shaped guide surface 294, guide component 2a, arc-shaped guide surface 2a1;

[0048] Drainage pipe 30, washing pipe 31, first inner pipe 32, first connecting fitting 33, first outer pipe 34, second inner pipe 35, second connecting fitting 36, second outer pipe 37, bend 38, anti-siphon port 39;

[0049] Toilet body 40, toilet chamber 41, drain outlet 42. Detailed Implementation

[0050] 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.

[0051] Example 1

[0052] like Figure 1-11 As shown, this embodiment discloses a flushing system, which includes a water tank 10, a water pump 20, a drain pipe 30, and a washing pipe 31. A water supply port is provided on the water tank 10, and an inlet valve 11 is provided on the water supply port to facilitate the replenishment of water to the water tank 10 and to stabilize the working water level of the water tank 10.

[0053] The water pump 20 is detachably installed in the inner cavity of the water tank 10. Preferably, it is installed at the bottom of the inner cavity, so that the water pump 20 can be directly snapped, plugged in or screwed to the water tank 10. Alternatively, some auxiliary connecting parts such as clamps can be used to install the water pump 20 at the bottom of the inner cavity of the water tank 10. This arrangement can ensure the stability of the position of the water pump 20 and ensure that the water inlet 24 of the water pump 20 is stable and reliable.

[0054] The water pump 20 includes a pump body, a motor 28, and an impeller 29. The pump body includes an outlet cover 21 and a pump casing 22, which are detachably and sealingly connected, such as by snap-fit ​​or screw connection. The outlet cover 21 and the pump casing 22 cooperate to form a pump cavity 23, in which the impeller 29 is placed. The size of the impeller 29 is adapted to the pump cavity 23, and preferably the cross-sectional shape of the pump cavity 23 is circular. The motor 28 drives the impeller 29 to rotate. The motor 28 is detachably connected to the pump casing 22, or the pump casing 22 and the outer shell of the motor 28 are integrally formed, depending on the type of motor 28 selected.

[0055] At least one water inlet 24 is provided at the end of the water outlet cover 21. In this embodiment, the water inlet 24 is located on the side end face facing the impeller 29. Two water outlets are provided on the side wall of the water outlet cover 21. Both the water inlet 24 and the water outlets are connected to the pump chamber 23.

[0056] A connecting frame 211 is provided inside the inlet 24 of the outlet cover 21, and the end of the connecting frame 211 has an assembly hole 212. The rotor 281 of the motor 28 is fixedly connected to the impeller 29, and the stator of the motor 28 is fixed inside the pump casing 22 or integrally formed therewith. The shaft 282 of the motor 28 passes through the rotor 281 and is connected to the assembly hole 212 of the connecting frame 211. The impeller 29 includes a first connecting plate 291, a second connecting plate 292, and a plurality of blades 293 evenly arranged between the first connecting plate 291 and the second connecting plate 292. The first connecting plate 291 has an opening in the middle, the diameter of which is larger than the diameter of the inlet 24, and the end of the opening is provided with an arc-shaped guide surface 294 for guiding the water flow.

[0057] The two outlets are defined as the first outlet and the second outlet, respectively. Both the first and second outlets include a main outlet and a secondary outlet, which are interconnected. The main outlet of each outlet is connected to the pump chamber 23, and the secondary outlet is connected to the main outlet. The connection point between the secondary outlet and the main outlet is located on the side of the main outlet closest to the connection end of the pump chamber 23. A reference tangent 27 is drawn along the edge of the cross-section of the pump chamber 23 (which has a circular cross-section). The direction of the reference tangent 27 is the tangent direction. The opening orientation of the main outlet (i.e., the direction of the centerline of the main outlet) should be parallel to the tangent direction (a=0°), or at a small angle α, where α≤30°. The opening orientation of the secondary outlet corresponding to the main outlet (i.e., the direction of the centerline of the secondary outlet) is perpendicular or inclined to the opening orientation of the corresponding main outlet. When the secondary outlet is inclined to the opening orientation of its corresponding main outlet, the inclination angle is set to b, where 30°≤b≤150°. Preferably, the centerline of the secondary outlet passes through the center of the cross-section of the pump chamber 23. With this configuration, water will exit from the main outlet when rotating along the tangential direction, and a small flow will exit from the corresponding secondary outlet. When rotating against the tangential direction, all water will exit from the secondary outlet, and no water will exit from the main outlet. To ensure the water pressure or flow velocity at the main outlet, the cross-sectional area of ​​the main outlet must be larger than that of the secondary outlet, and the depth H of the pump chamber 23 must not be less than the diameter of the main outlet.

[0058] Specifically, the orientation of the main inlet corresponding to the first outlet is the direction of water flow when the impeller 29 rotates in the first direction, and the orientation of the main inlet corresponding to the second outlet is the direction of water flow when the impeller 29 rotates in the second direction. The first and second directions are opposite. The first direction can be clockwise (motor 28 in the forward direction) and the second direction can be counterclockwise (motor 28 in the reverse direction), or the first direction can be counterclockwise and the second direction can be clockwise.

[0059] When motor 28 rotates clockwise, water mainly flows from the main outlet corresponding to the first outlet (hereinafter referred to as the first main outlet 251) (high flow rate), while the main outlet corresponding to the second outlet (hereinafter referred to as the second main outlet 261) does not flow (or flows at a low flow rate). The auxiliary outlet corresponding to the first outlet (hereinafter referred to as the first auxiliary outlet 252) does not flow or flows at a low flow rate, while the auxiliary outlet corresponding to the second outlet (hereinafter referred to as the second auxiliary outlet 262) flows at a low flow rate. When motor 28 rotates counterclockwise, water mainly flows from the second main outlet 261 (high flow rate), while the first main outlet 251 does not flow (or flows at a low flow rate); the first auxiliary outlet 252 flows at a low flow rate, while the second auxiliary outlet 262 does not flow or flows at a low flow rate. In this way, by controlling the forward and reverse rotation of motor 28, water can be distributed at different times (staggered peak flow) between the first main outlet 251 and the second main outlet 261. All auxiliary outlets are connected to water tank 10, so that the water in water tank 10 is not lost and the impact on the water output of the main outlet is minimal.

[0060] Both the drainage pipe 30 and the washing pipe 31 include an inner pipe, a connecting fitting, and an outer pipe. The inner pipe is placed inside the water tank 10, and the outer pipe is placed outside the water tank 10. A mounting hole penetrating the tank wall is provided on the water tank 10. The outer diameter of the connecting fitting matches the diameter of the mounting hole, and the connecting fitting is inserted into the mounting hole. Both the outer and inner pipes are inserted into the connecting fitting (one end of the connecting fitting is inserted into the cavity of the outer pipe, and the other end is inserted into the cavity of the inner pipe), thus connecting the inner pipe to the outer pipe via the connecting fitting. At least above the connecting fitting corresponding to the drainage pipe 30, there is an "L"-shaped bend 38. One end of the bend 38 connects to the inner cavity of the connecting fitting, and the other end connects to the inner cavity of the water tank 10. The end of the bend 38 connecting to the inner cavity of the water tank 10 is an anti-siphon port 39, which is set above the working water level of the water tank 10. When the position of the flushing opening on the toilet is higher than the working water level in the water tank, the anti-siphon port 39 does not need to be installed on the flushing pipe 31. That is, only the drain pipe 30 needs to be installed with a bend 38, and the flushing pipe 31 does not need to be installed with a bend 38.

[0061] For the drainage pipe 30, the outer pipe, the bend 38, and the mounting hole work together to confine the connecting pipe fittings to the wall of the water tank 10, ensuring the installation stability of the drainage pipe 30. For the washing pipe 31, if the washing pipe 31 has a bend 38, the connection structure is the same as that of the drainage pipe 30. If the washing pipe 31 does not have a bend 38, the corresponding outer pipe, inner pipe, and mounting hole work together to confine the connecting pipe fittings to the wall of the water tank 10, ensuring the installation stability of the washing pipe 31.

[0062] The inner pipe, connecting fitting, and outer pipe of the drainage pipe 30 are defined as the first inner pipe 32, the first connecting fitting 33, and the first outer pipe 34, respectively. The inner pipe, connecting fitting, and outer pipe of the washing pipe 31 are defined as the second inner pipe 35, the second connecting fitting 36, and the second outer pipe 37, respectively. The first main inlet 251 is connected to the first inner pipe 32, and the second main inlet 261 is connected to the second inner pipe 35. The second outer pipe 37 is connected to the washing port of the toilet chamber for washing the walls of the toilet chamber, while the first outer pipe 34 is connected to the flushing nozzle of the toilet chamber for flushing the bottom of the toilet chamber. With this configuration, when the motor 28 rotates clockwise, the drainage pipe 30 discharges water at a high flow rate, while the washing pipe 31 discharges water at a low flow rate or no flow rate. When the motor 28 rotates counterclockwise, the washing pipe 31 discharges water at a high flow rate, while the drainage pipe 30 discharges water at a low flow rate or no flow rate, thus achieving time-separated washing and drainage.

[0063] In addition, an overflow port 12 can be provided on the water tank 10. The overflow port 12 is used to connect to the toilet chamber 41 of the toilet so that when the water level control of the water tank 10 is abnormal, the overflow water can enter the toilet chamber 41 and be discharged.

[0064] Example 2

[0065] The difference between this embodiment and Embodiment 1 is that the second inlet does not have a secondary inlet; that is, the second inlet only has a second main inlet 261 and no second secondary inlet 262.

[0066] When motor 28 rotates counterclockwise, water mainly flows out from the second main outlet 261 (high flow rate), while the first main outlet 251 does not flow out (or flows out at a low flow rate), and the first auxiliary outlet 252 flows out at a low flow rate. This process primarily involves flushing with water, with little or no drainage. Conversely, when motor 28 rotates clockwise, water mainly flows out from the first main outlet 251 (high flow rate), while the second main outlet 261 flows out at a low flow rate, and the first auxiliary outlet 252 either does not flow out or flows out at a low flow rate. This process primarily flushes the toilet while also providing a small flow of flushing water, resulting in a better flushing effect.

[0067] Example 3

[0068] The difference between this embodiment and Embodiments 1 and 2 is that the connecting pipe is integrally formed on the water tank 10.

[0069] Example 4

[0070] The difference between this embodiment and Embodiments 1 and 2 is that the connecting pipe is screwed onto the wall of the water tank 10, or the connecting pipe has external threads and internal threads in the mounting hole, and the connecting pipe is screwed into the mounting hole, or the connecting pipe is snapped onto the wall of the water tank 10 by a clip. Of course, other detachable connection methods can also be used, which will not be described in detail here.

[0071] Example 5

[0072] like Figure 12 As shown, the difference between this embodiment and Embodiments 1 and 2 is that the connecting pipe is set independently relative to the water tank 10, and it is only necessary to ensure that the anti-siphon port 39 is connected to the inner cavity of the water tank 10.

[0073] Example 6

[0074] like Figure 13-14As shown, the difference between this embodiment and Embodiments 1 and 2 is that both the drain pipe 30 and the washing pipe 31 are continuous pipes (i.e., the pipes are not segmented). This pipe is independent of the water tank 10, meaning the pipe extends directly from the top of the water tank 10. At least one opening is provided below the pipe corresponding to the drain pipe 30. This opening connects to the pipe cavity, and the opening faces the inner cavity of the water tank 10. This opening is the anti-siphon port 39, and the anti-siphon port 39 is set above the working water level of the water tank 10. When the position of the washing port on the toilet is higher than the working water level in the water tank, the anti-siphon port 39 does not need to be provided on the washing pipe 31. That is, only the opening needs to be provided below the drain pipe 30, and the opening below the washing pipe 31 does not need to be provided. Compared with Embodiment 1, the structure of the drain pipe 30 and the washing pipe 31 is simpler in this embodiment.

[0075] Example 7

[0076] The difference between this embodiment and embodiment five is that the pipe extends through the wall of the water tank 10 to the outside of the water tank 10.

[0077] Example 8

[0078] Based on any of the above embodiments, this embodiment also provides a guide member 2a on the inner wall of the pump cavity 23, such as... Figure 15-16 As shown, this embodiment adds a guide member 2a to the water pump 20 described in Embodiment 1. The guide member 2a is correspondingly positioned to at least one outlet, and is located on the rear side of the outlet in the corresponding rotation direction. The outer surface of the guide member 2a is an arc-shaped guide surface 2a1, and the thickness of the front end face of the arc-shaped guide surface is greater than the thickness of the rear end face. In this embodiment, the guide member 2a is correspondingly positioned to the first outlet.

[0079] The guide member 2a is designed to increase the head of the corresponding outlet, such as... Figure 16 The arrows shown indicate the rotation direction corresponding to the first outlet. By setting guide member 2a, the water flow can be guided to flow out along the main outlet of the corresponding outlet, thus increasing the head.

[0080] Example 9

[0081] like Figure 17As shown, this embodiment discloses a toilet that employs the flushing system described in Embodiment 5 or Embodiment 6. The toilet includes a toilet body 40, which has a toilet chamber 41 and a water storage component. The water storage component is located at the rear end of the toilet chamber 41 and can be a recessed water chamber or a raised water tank, etc. In this embodiment, the water storage component is a recessed water chamber. Several washing holes are provided on the wall of the toilet chamber, and a drain outlet 42 is provided at the bottom of the toilet chamber. In this embodiment, the recessed water chamber serves as the water tank 10 of the flushing system, meaning the water tank 10 of the flushing system is integrated into the toilet body 40. This arrangement maximizes the volume of the water tank 10, ensuring sufficient water supply, making it particularly suitable for situations where the toilet is used frequently, and also facilitating the modification of existing toilet flushing systems.

[0082] The washing pipe 31 is connected to the washing hole, and the drain pipe 30 is connected to the toilet chamber 41 through the drain outlet 42.

[0083] Example 10

[0084] like Figure 18 As shown, the difference between this embodiment and Embodiment Nine is that the toilet body 40 does not have a water storage component. The portion of the toilet body 40 located at the rear end of the toilet chamber 41 is hollowed out to form an installation cavity, and the water tank 10 of the flushing system is installed in the installation cavity. In this embodiment, any of the flushing systems from Embodiments One to Eight can be used. With this configuration, the water tank 10 is independently installed, and the water tank 10 can be designed with a small volume, sufficient to ensure the water consumption for a single flush. This frees up more space in the installation cavity for installing functional components such as those for a smart toilet.

[0085] 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: This includes water tanks, water pumps, drainage pipes, and washing pipes; The water pump is placed inside the water tank. The water pump includes a pump body, a motor and an impeller. The pump body is provided with a pump chamber, a first outlet, a second outlet and at least one inlet. The inlet is connected to the pump chamber. The impeller is built into the pump chamber and the motor drives the impeller to rotate. Both the first and second water outlets include a main outlet, with both ends of the main outlet being open-ended and connected to the pump chamber. The orientation of the main outlet corresponding to the first water outlet is the direction of water flow when the motor rotates in a first direction, and the orientation of the main outlet corresponding to the second water outlet is the direction of water flow when the motor rotates in a second direction. The first and second directions are opposite. At least one of the first and second water outlets has a secondary outlet on the main outlet corresponding to the first water outlet. Both ends of the secondary outlet are open-ended and connected to the main outlet. The connection point between the secondary outlet and the main outlet is located on the side of the main outlet closer to the connection end of the pump chamber. The main outlet corresponding to the first outlet is connected to one end of the drain pipe, and the main outlet corresponding to the second outlet is connected to one end of the washing pipe. The other ends of the drain pipe and the washing pipe extend to the outside of the water tank. All the auxiliary outlets are connected to the inner cavity of the water tank. At least the drain pipe is provided with an anti-siphon port, and the anti-siphon port is connected to the inner cavity of the water tank. The anti-siphon port is set higher than the working water level of the water tank.

2. The flushing system according to claim 1, characterized in that: The main port is oriented parallel to the tangent of the outer edge of the pump cavity, or at an angle α to the tangent, wherein the angle α ≤ 30°; the secondary port is oriented perpendicularly to or at an angle to the corresponding main port.

3. The flushing system according to claim 1, characterized in that: Both the drainage pipe and the washing pipe include an inner pipe, a connecting fitting, and an outer pipe. The inner pipe is placed inside the water tank, and the outer pipe is placed outside the water tank. The inner pipe is connected to the outer pipe via the connecting fitting. The connecting fitting is integrally formed with the water tank, or the connecting fitting is detachably connected to the tank wall, or the connecting fitting is independent of the water tank. The anti-siphon port is provided on the connecting fitting.

4. The flushing system according to claim 3, characterized in that: An "L"-shaped bend is provided above the connecting pipe fitting. One end of the bend is connected to the inner cavity of the connecting pipe fitting, and the other end of the bend is an anti-siphon port.

5. The flushing system according to claim 3, characterized in that: The water tank has a through-hole in the tank wall. The outer diameter of the connecting pipe is matched with the diameter of the mounting hole, and the connecting pipe is inserted into the mounting hole. Both the outer pipe and the inner pipe are inserted into the connecting pipe, and the outer pipe, the bend, and the mounting hole cooperate to limit the connecting pipe to the tank wall of the water tank. Alternatively, the outer pipe, the inner pipe, and the mounting hole cooperate to limit the connecting pipe to the tank wall of the water tank.

6. The flushing system according to claim 1, characterized in that: Both the drainage pipe and the washing pipe include a continuous pipe, which is independent of the water tank, or the pipe is installed through the wall of the water tank; the anti-siphon port is an opening on the pipe, which connects to the cavity of the pipe, and the opening of the opening faces the inner cavity of the water tank.

7. The flushing system according to claim 1, characterized in that: The water pump is detachably connected to the bottom of the inner cavity of the water tank; the water tank is provided with a water supply port, and the water supply port is provided with an inlet valve.

8. The flushing system according to claim 2, characterized in that: The cross-sectional area of ​​the main port is larger than that of the secondary port, the depth of the pump cavity is greater than the diameter of the main port, and the opening orientation of the secondary port is set at an angle b to the opening orientation of the corresponding main port, where 30°≤b≤150°; the centerline of the secondary port passes through the center of the cross-section of the pump cavity.

9. The flushing system according to claim 1, characterized in that: At least one guide member is also provided on the inner wall of the pump chamber, and the guide member is correspondingly provided with at least one outlet. The guide member is provided on the rear side of the outlet in the direction of rotation. The front end face of the guide member is set at an angle to the corresponding outlet. The outer surface of the guide member is an arc-shaped guide surface. The thickness of the front end face of the arc-shaped guide surface is greater than the thickness of the rear end face.

10. The flushing system according to claim 1, characterized in that: The pump body includes an outlet cover and a pump housing, which are detachably and sealed together, and the outlet cover and the pump housing cooperate to form a pump cavity; the inlet is located at one end of the outlet cover, and the outlet is located on the side wall of the outlet cover; the motor is detachably connected to the pump housing, or the pump housing and the motor are integrally formed. A connecting frame is provided inside the water inlet of the water outlet cover. The end of the connecting frame has an assembly hole. The motor is fixedly connected to the impeller, and the shaft of the motor is connected to the assembly hole of the connecting frame. The impeller includes a first connecting plate, a second connecting plate, and a plurality of blades evenly disposed between the first connecting plate and the second connecting plate. The first connecting plate has an opening in the middle, the diameter of which is larger than the diameter of the water inlet, and the end of the opening is provided with an arc-shaped guide surface for guiding the water flow.

11. The flushing system according to claim 1, characterized in that: The water tank is equipped with an overflow port.

12. A toilet using the flushing system according to any one of claims 1-11, characterized in that: The toilet includes a toilet body, which includes a toilet chamber and a water storage component. The water storage component is configured as a water tank for a flushing system. The toilet chamber has several washing holes on its wall surface and a drain outlet at the bottom. The drain pipe is connected to the toilet chamber through the drain outlet, and the washing pipe is connected to the washing holes.

13. A toilet using the flushing system according to any one of claims 1-11, characterized in that: The toilet includes a toilet body, which includes a toilet seat cavity and an installation cavity. The water tank of the flushing system is located in the installation cavity. The toilet seat cavity has several washing holes on its wall surface and a drain outlet at the bottom. The drain pipe is connected to the toilet seat cavity through the drain outlet, and the washing pipe is connected to the washing holes.

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