A flushing system and toilet

Abstract

The utility model relates to a kind of flushing system and closestool, and flushing system includes water tank, injection pipeline, washing pipeline and water pump;Water pump has first water outlet, second water outlet and water inlet, and the first water outlet is equipped with the secondary mouth with intercommunication, and the caliber (≥15mm) of the first water outlet is 5-8 times of secondary mouth caliber;First water outlet intercommunication injection pipeline, and second water outlet intercommunication washing pipeline;At least injection pipeline is equipped with anti-siphon mouth.The utility model can realize washing pipeline and injection pipeline simultaneous water outlet by controlling water pump positive and negative rotation, or washing pipeline large flow water outlet, while injection pipeline micro water outlet, to discharge air in injection pipeline in advance, so as to weaken injection flushing noise.

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 involves spraying water into the drain outlet of the toilet bowl 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. Dedicated pumps for flushing and drainage, with separate pumps controlling their operation at different times; 2. A single pump with two outlets (or a T-junction), with an internal on / off mechanism controlling the separate water flow from each outlet; 3. Also a single pump with an external electronic switching valve for timed water flow control. 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 and more complex pump structures, leading to more potential failure points. 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 different flushing modes can be achieved 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, the present invention adopts the following technical solution:

[0006] A flushing system comprising a water tank, a jet pipe, a scrubbing pipe, and a water pump;

[0007] The water pump is placed in a water tank. The water pump has a first outlet, a second outlet, and an inlet. The first outlet is provided with a secondary outlet that communicates with it. The diameter of the first outlet is 5-8 times the diameter of the secondary outlet, and the diameter of the first outlet is not less than 15mm. The water pump can operate in both forward and reverse directions.

[0008] The first water outlet is connected to the spray pipe, and the second water outlet is connected to the washing pipe; of the spray pipe and the washing pipe, at least the spray pipe is provided with an anti-siphon port, and the anti-siphon port is higher than the working water level of the water tank.

[0009] With the above settings, by limiting the diameter of the first outlet and its ratio to the diameter of the secondary outlet, when the water pump runs in the first direction, the washing pipe and the spray pipe simultaneously output water, used for washing the toilet sidewalls and rinsing the toilet bottom, respectively. When the water pump runs in the second direction, the washing pipe outputs a large flow of water, which can be used alone for washing, lubricating, or replenishing the toilet sidewalls, while the spray pipe outputs a small amount of water, which helps to expel air from the spray pipe in advance, avoiding loud spray noise when washing and spraying work simultaneously. In addition, because the water pump is placed in the water tank, the water from the secondary outlet can flow back into the water tank, so the water volume in the tank is not lost, and the impact on the water output of the first outlet is minimal. By setting an anti-siphon port, it is ensured that the pipes will not siphon when the water pump stops, avoiding water waste. This utility model only requires one water pump, and different flushing modes can be achieved by controlling the forward and reverse rotation of the water pump. It is easy to control, has a simple structure, and lower manufacturing and maintenance costs for the water pump.

[0010] Preferably, the water pump includes a pump body, a motor, and an impeller. The pump body has a pump chamber, the impeller is built into the pump chamber, and the motor drives the impeller to rotate.

[0011] The first outlet, the second outlet, and the inlet are all located on the pump body, and all three are connected to the pump chamber. The auxiliary outlet connects to the first outlet at a position near the connection end of the first outlet to the pump chamber. The first outlet faces the direction of water flow when the motor rotates in a first direction, and the second outlet faces the direction of water flow when the motor rotates in a second direction, with the first and second directions being opposite. This arrangement facilitates the implementation of the aforementioned control mode and ensures smooth water flow from both the first and second outlets when needed.

[0012] Preferably, the diameters of the first outlet and the secondary outlet are calculated according to the following formula:

[0013]

[0014] Where D1 is the diameter of the first outlet, D2 is the diameter of the secondary outlet, Q1 is the flow rate of the first outlet, Q2 is the flow rate of the secondary outlet, μ is the dynamic viscosity of the fluid, and p is the density of the fluid. This setting provides a standard for the design of the diameters of the first and secondary outlets, thus effectively addressing different flushing scenarios.

[0015] Preferably, the openings of the first and second water outlets are both parallel to the tangent direction of the outer edge of the pump chamber, or are set at an angle α to the tangent direction, wherein the angle α ≤ 30°; the opening of the secondary outlet is perpendicular to or inclined to the opening of the first water outlet. This arrangement ensures that water flows smoothly from the first water outlet when the motor rotates in the first direction, and ensures that water flows smoothly from the second water outlet when the motor rotates in the second direction.

[0016] Preferably, the opening of the secondary outlet is at an angle b to the opening of the first outlet, where 30° ≤ b ≤ 150°; the centerline of the secondary outlet passes through the center of the cross-section of the pump chamber. This arrangement ensures that when the first outlet is discharging water at a high flow rate, the secondary outlet is discharging water at a low flow rate, reducing the impact of the secondary outlet's discharge on the first outlet's discharge and ensuring the water pressure or flow rate at the first outlet.

[0017] Preferably, the water tank is provided with a water supply port, and the water supply port is provided with a water inlet valve. The water inlet valve is used to control the automatic water intake of the water tank.

[0018] 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.

[0019] A connecting frame is provided inside the water inlet of the outlet cover. The end of the connecting frame has an assembly hole. The motor is fixedly connected to the impeller, and the motor shaft is connected to the assembly hole of the connecting frame. This design results in a simple pump body structure that is easy to form and assemble.

[0020] Preferably, 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. An opening is provided in the center of the first connecting plate, and the diameter of the opening is larger than the diameter of the water inlet. This configuration results in a simple impeller structure.

[0021] In addition, this utility model also discloses a toilet, which includes a toilet body and the above-mentioned flushing system. The toilet body has a toilet seat and a water storage component, and the water storage component is set as the water tank of the flushing system; or, the toilet body has a toilet seat and an installation cavity, and the water tank of the flushing system is set in the installation cavity.

[0022] The toilet chamber has several washing holes on its wall surface, and the bottom of the toilet chamber has a drain outlet and a spray nozzle connected to the drain outlet. The washing pipe is connected to the washing holes, and the spray pipe is connected to the spray nozzle.

[0023] When the water pump rotates forward or reverse, water flows from both the spray nozzle and the flushing holes. When the water pump runs in the first direction, the water flow rate from the spray nozzle is greater than the total water flow rate from all the flushing holes. When the water pump runs in the second direction, the total water flow rate from all the flushing holes is greater than the water flow rate from the spray nozzle, and the ratio of the total water flow rate from all the flushing holes to the water flow rate from the spray nozzle is greater than 5. With the above settings, by controlling the forward and reverse rotation of the water pump, it is possible to achieve separate flushing, wall rinsing, or water replenishment of the toilet (while also expelling air from the spray pipe), as well as a water flow mode where flushing and spraying occur simultaneously, and it also has the advantage of low flushing noise.

[0024] Preferably, the water tank is provided with an overflow port that connects to the toilet chamber. The overflow port allows overflowing water to enter the toilet chamber and be discharged when the water level in the water tank is abnormal, thus ensuring the cleanliness of the toilet installation site.

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

[0026] This invention, by limiting the diameter of the first water outlet and its ratio to the diameter of the secondary outlet, allows water to flow simultaneously from both the washing and spraying pipes when the pump operates in the first direction. This water is used for washing the toilet's sidewalls and rinsing the toilet bottom, respectively. When the pump operates in the second direction, the washing pipe outputs a large flow of water, which can be used solely for washing, lubricating, or replenishing the toilet's sidewalls, while the spraying pipe outputs a small amount of water to expel air from its interior beforehand, thus avoiding excessive noise during simultaneous washing and spraying. This invention requires only one water pump, and different flushing modes can be achieved by controlling the pump's forward and reverse rotation. It is easy to control, has a simple structure, and lower manufacturing and maintenance costs for the pump. Attached Figure Description

[0027] Figure 1 This is a simplified view of Example 1.

[0028] Figure 2 This is a schematic diagram of the water pump from another perspective in Example 1.

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

[0030] Figure 4 This is an exploded view of the water pump in Example 1.

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

[0032] Figure 6 This is a schematic diagram of the water outlet cover in Example 1.

[0033] Figure 7This is a cross-sectional view of the water outlet cover in Example 1 (a diagram showing the flow direction of high-flow water when the motor rotates clockwise).

[0034] Figure 8 This is a cross-sectional view of the water outlet cover in Embodiment 1 (a diagram showing the flow direction of high-flow water when the motor rotates counterclockwise).

[0035] Figure 9 This is the control flowchart of the water pump in Example 1.

[0036] Figure 10 This is a schematic diagram of Example 2.

[0037] Explanation of symbols for main components:

[0038] Water pump 10, water outlet cover 11, connecting bracket 111, assembly hole 112, pump housing 12, pump chamber 13, water inlet 14, first water outlet 151, auxiliary outlet 152, second water outlet 16, reference tangent 17.

[0039] Motor 20, rotor 21, shaft 22;

[0040] Impeller 30, first connecting plate 31, second connecting plate 32, blade 33;

[0041] Water tank 41, spray pipe 42, scrubbing pipe 43, inlet valve 44, anti-siphon port 45, overflow port 46;

[0042] Toilet body 50, toilet seat 51, mounting cavity 52. Detailed Implementation

[0043] 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.

[0044] Example 1

[0045] like Figure 1 As shown, this embodiment discloses a flushing system, which includes a water tank 41, a spray pipe 42, a washing pipe 43 and a water pump 10. The water tank 41 is provided with a water supply port, and a water inlet valve 44 is provided on the water supply port to realize water inlet control.

[0046] The water pump 10 is placed at the bottom of the water tank 41, such as... Figure 2-8As shown, the water pump 10 includes a pump body, a motor 20, and an impeller 30. The pump body includes an outlet cover 11 and a pump housing 12, which are detachably and sealingly connected, such as by snap-fit ​​or screw connections. The outlet cover 11 and the pump housing 12 cooperate to form a pump chamber 13, in which the impeller 30 is placed. The size of the impeller 30 is adapted to the pump chamber 13, and preferably the cross-sectional shape of the pump chamber 13 is circular. The motor 20 drives the impeller 30 to rotate. The motor 20 is detachably connected to the pump housing 12, or the pump housing 12 and the outer shell of the motor 20 are integrally formed, depending on the type of motor 20 selected. In this case, the motor 20 can rotate in both forward and reverse directions.

[0047] At least one water inlet 14 is provided at the end of the water outlet cover 11. In this embodiment, one water inlet 14 is provided and is located on the side end face directly opposite the impeller 30. Two water outlets are provided on the side wall of the water outlet cover 11. Both the water inlet 14 and the water outlet are connected to the pump chamber 13.

[0048] A connecting frame 111 is provided inside the water inlet 14 of the outlet cover 11, and the end of the connecting frame 111 has an assembly hole 112. The rotor 21 of the motor 20 is fixedly connected to the impeller 30, and the stator of the motor 20 is fixed inside the pump casing 12 or integrally formed therewith. The shaft 22 of the motor 20 passes through the rotor 21 and is connected to the assembly hole 112 of the connecting frame 111. The motor 20 in this case can rotate in both directions. The impeller 30 includes a first connecting plate 31, a second connecting plate 32, and a plurality of blades 33 evenly arranged between the first connecting plate 31 and the second connecting plate 32. The first connecting plate 31 has an opening in the middle, and the diameter of the opening is larger than the diameter of the water inlet 14.

[0049] The two outlets are defined as a first outlet 151 and a second outlet 16, respectively. Both ends of the first outlet 151 are open-ended and connected to the pump chamber 13. The orientation of the first outlet 151 is the direction of water flow when the motor 20 rotates in the first direction. A secondary outlet 152 is also provided on the first outlet 151. Both ends of the secondary outlet 152 are open-ended and connected to the first outlet 151. The connection point between the secondary outlet 152 and the first outlet 151 is located on the side of the first outlet 151 near the connection end of the pump chamber 13. Similarly, both ends of the second outlet 16 are connected to the pump chamber 13. The difference is that the orientation of the second outlet 16 is the direction of water flow when the motor 20 rotates in the second direction. The first direction is opposite to the second direction. That is, when the first direction is clockwise, the second direction is counterclockwise, and when the first direction is counterclockwise, the second direction is clockwise.

[0050] A reference tangent 17 is drawn along the edge of the cross-section of the pump chamber 13 (which has a circular cross-section). The direction of the reference tangent 17 is the tangent direction. Therefore, the opening orientation of the first outlet 151 (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 with respect to the tangent direction, where α ≤ 30°. The opening orientation of the secondary outlet 152 (i.e., the direction of the centerline of the secondary outlet 152) is perpendicular or inclined to the opening orientation of the corresponding main outlet. When the secondary outlet 152 is inclined to the opening orientation of the first outlet 151, the inclination angle is set to b, where 30° ≤ b ≤ 150°. Preferably, the centerline of the secondary outlet 152 passes through the center of the cross-section of the pump chamber 13. With this configuration, it can be ensured that when the motor 20 rotates in the tangential direction, the first outlet 151 outputs a large flow of water, while the secondary outlet 152 outputs a small flow of water. When rotating against the tangential direction, the water mainly flows out from the secondary outlet 152, and the first outlet 151 outputs a small amount of water. The opening of the second outlet 16 is similar to that of the first outlet 151, but it corresponds to the water flow direction when the motor 20 rotates in different directions, so it will not be described in detail.

[0051] When the motor 20 rotates in the first direction (e.g., clockwise), water mainly flows out from the first outlet 151 (high flow rate), while water flows out from the second outlet 16 at a low flow rate, and water flows out from the auxiliary outlet 152 in a very small amount. When the motor 20 rotates in the second direction (e.g., counterclockwise), water mainly flows out from the second outlet 16 (high flow rate), while water flows out from the first outlet 151 in a very small amount, and water flows out from the auxiliary outlet 152 in a very small flow rate. Because the water pump 10 is placed in the water tank 41, the water from the auxiliary outlet 152 will flow back into the water tank 41, and the water volume in the water tank 41 will not be lost.

[0052] In this case, the diameter of the first outlet 151 is required to be 5-8 times the diameter of the secondary outlet 152, and the diameter of the first outlet 151 is not less than 15mm. More specifically, the diameters of the first outlet 151 and the secondary outlet 152 are calculated according to the following formula:

[0053]

[0054] Where D1 is the diameter of the first outlet 151, D2 is the diameter of the secondary outlet 152, Q1 is the flow rate of the first outlet 151, Q2 is the flow rate of the secondary outlet 152, μ is the dynamic viscosity of the fluid, and p is the density of the fluid.

[0055] The first outlet 151 connects to the spray pipe 42, and the second outlet 16 connects to the scrubbing pipe 43. At least the spray pipe 42 is equipped with an anti-siphon port 45, and the anti-siphon port 45 is higher than the working water level of the water tank 41 to prevent siphoning. Furthermore, the water exiting the anti-siphon port 45 should flow back into the inner cavity of the water tank 41.

[0056] With the above settings, the following functions can be achieved: When the motor 20 runs in the first direction, the water flow rate of the spray pipe 42 is greater than the water flow rate of the scrubbing pipe 43, and the water flow rate of the scrubbing pipe 43 is greater than the water flow rate of the auxiliary port 152. When the motor 20 runs in the second direction, the water flow rate of the scrubbing pipe 43 is greater than the water flow rate of the auxiliary port 152, and the water flow rate of the auxiliary port 152 is greater than the water flow rate of the spray pipe 42, and the ratio of the water flow rate of the scrubbing pipe 43 to the water flow rate of the spray pipe 42 is greater than 5. More specifically, it achieves the following: when the motor 20 runs in the first direction, the washing pipe 43 and the spray pipe 42 simultaneously output water, which is used to wash the toilet sidewall and rinse the toilet bottom, respectively. When the motor 20 runs in the second direction, the washing pipe 43 outputs a large flow of water, which can be used alone to wash the toilet sidewall, moisturize the wall, or replenish water. At the same time, the spray pipe 42 outputs a small amount of water, which helps to expel the air in the spray pipe 42 in advance and avoids generating a lot of spraying noise when washing and spraying work at the same time.

[0057] Example 2

[0058] This embodiment discloses a toilet, which includes a toilet body and the flushing system described in Embodiment 1. The toilet body 50 has a toilet seat cavity 51 and a water storage component (the water storage component can be a water tank or a submerged water chamber), and the water storage component is configured as the water tank 41 of the flushing system. Alternatively, the toilet body 50 has a toilet seat cavity 51 and a mounting cavity 52, and the water tank 41 of the flushing system is disposed in the mounting cavity 52. ​​The latter is illustrated in this embodiment. See [reference]. Figure 10 .

[0059] The water tank 41 is provided with an overflow port 46 that connects to the toilet chamber. Several washing holes are provided on the wall of the toilet chamber 51, and a drain port and a jet nozzle connected to the drain port are provided at the bottom of the toilet chamber 51. A washing pipe 43 connects to the washing holes, and a jet pipe 42 connects to the jet nozzle. The locations of the washing holes, drain port, and jet nozzle are existing technology and will not be described further.

[0060] This embodiment achieves the following effects: When the water pump 10 rotates forward or reverse, water flows from both the spray nozzle and the scrubbing hole. More specifically, when the motor 20 runs in the second direction, the total water flow rate from all the scrubbing holes is greater than the water flow rate from the spray nozzle, and the ratio of the total water flow rate from all the scrubbing holes to the water flow rate from the spray nozzle is greater than 5. At this time, the side walls of the toilet bowl 51 can be scrubbed, lubricated, or replenished with water separately. Simultaneously, a small amount of water flows from the spray nozzle to expel air from the spray pipe 42 in advance, avoiding significant spray noise when scrubbing and spraying occur simultaneously. When the motor 20 runs in the first direction, the water flow rate from the spray nozzle is greater than the total water flow rate from all the scrubbing holes. At this time, the side walls of the toilet bowl 51 are scrubbed, and the bottom of the toilet bowl 51 is rinsed.

[0061] 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: Includes water tank, spray pipes, scrubbing pipes, and water pump; The water pump is placed in a water tank. The water pump has a first outlet, a second outlet, and an inlet. The first outlet is provided with a secondary outlet that communicates with it. The diameter of the first outlet is 5-8 times the diameter of the secondary outlet, and the diameter of the first outlet is not less than 15mm. The water pump can operate in both forward and reverse directions. The first water outlet is connected to the spray pipe, and the second water outlet is connected to the washing pipe; of the spray pipe and the washing pipe, at least the spray pipe is provided with an anti-siphon port, and the anti-siphon port is higher than the working water level of the water tank.

2. The flushing system as described in claim 1, characterized in that: The water pump includes a pump body, a motor, and an impeller. The pump body has a pump chamber, the impeller is built into the pump chamber, and the motor drives the impeller to rotate. The first outlet, the second outlet, and the inlet are all located on the pump body, and the first outlet, the second outlet, and the inlet are all connected to the pump chamber. The auxiliary port is located on the side of the first outlet near the connection end of the pump chamber. The first outlet is oriented in the direction of water flow when the motor rotates in the first direction, and the second outlet is oriented in the direction of water flow when the motor rotates in the second direction. The first direction and the second direction are opposite.

3. The flushing system as described in claim 1 or 2, characterized in that, Calculate the diameters of the first outlet and the secondary outlet using the following formula: Where D1 is the diameter of the first outlet, D2 is the diameter of the secondary outlet, Q1 is the flow rate of the first outlet, Q2 is the flow rate of the secondary outlet, μ is the dynamic viscosity of the fluid, and p is the density of the fluid.

4. The flushing system as described in claim 2, characterized in that: The openings of the first and second water outlets are both parallel to the tangent direction of the outer edge of the pump chamber, or are set at an angle α to the tangent direction, wherein the angle α ≤ 30°; the opening of the secondary outlet is perpendicular to or inclined to the opening of the first water outlet.

5. The flushing system as described in claim 4, characterized in that: The opening of the secondary outlet is set at an angle b to the opening of the first outlet, where 30°≤b≤150°; the centerline of the secondary outlet passes through the center of the cross-section of the pump cavity.

6. The flushing system as described in claim 2, 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.

7. The flushing system as described in claim 2, characterized in that: 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.

8. The flushing system as described in claim 1, characterized in that: The water tank is equipped with a water supply port, and the water supply port is equipped with an inlet valve.

9. A toilet, characterized in that: The toilet includes a toilet body and a flushing system as described in any one of claims 1-8, wherein the toilet body has a toilet seat cavity and a water storage component, and the water storage component is configured as a water tank for the flushing system; or, the toilet body has a toilet seat cavity and an installation cavity, and the water tank for the flushing system is disposed in the installation cavity. The toilet chamber has several washing holes on its wall surface, and the bottom of the toilet chamber has a drain outlet and a spray nozzle connected to the drain outlet. The washing pipe is connected to the washing holes, and the spray pipe is connected to the spray nozzle. When the water pump is running in either forward or reverse direction, water is discharged from both the spray nozzle and the scrubbing hole. When the water pump is running in the first direction, the water flow rate of the spray nozzle is greater than the total water flow rate of all the scrubbing holes. When the water pump is running in the second direction, the total water flow rate of all the scrubbing holes is greater than the water flow rate of the spray nozzle, and the ratio of the total water flow rate of all the scrubbing holes to the water flow rate of the spray nozzle is greater than 5.

10. The toilet as described in claim 9, characterized in that: The water tank is equipped with an overflow port that connects to the toilet chamber.

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