Automatic switching flushing device for toilet

Abstract

The utility model discloses a kind of automatic switching flushing device of closestool, including closestool water tank, the inside of closestool water tank is placed with electric pump, one end of the electric pump is installed with impeller chamber, one end of the impeller chamber is fixed with water inlet pipe, the top of the impeller chamber is connected with first water outlet connecting short pipe along external tangent direction, the top of the impeller chamber is connected with second water outlet connecting short pipe at symmetrical position with first water outlet connecting short pipe, the utility model is equipped with impeller, central chamber, long blade and short blade by setting, long blade and short blade cooperate with each other, water flow is separated by long blade first and then separated by short blade, water flow is separated in turn, more save electric pump power, water flow centrifugal effect is good, and cooperate with the first water outlet connecting short pipe and the second water outlet connecting short pipe of symmetrical distribution, so as to switch the rotating direction of electric pump centrifugal impeller, so as to realize switching water outlet.

Description

Technical Field

[0001] This utility model relates to the field of toilet technology, specifically to an automatic toilet flushing switching device. Background Technology

[0002] Traditional toilets flush by pressing water, while smart toilets use a flushing device that uses an electric pump. Combined with an optimized pipe structure, this increases the impact force of the water flow and reduces the risk of clogging. In Chinese patent application number 202222421697.2, "A drainage device and toilet with a pump", a purely mechanical method of switching floats is used to drive the flushing, which has the characteristics of simple structure, low cost, and ingenious design.

[0003] However, the flushing and drainage devices with pumps currently used in toilets on the market are slow when switching between drainage modes, have high pump power, and are prone to sewage backflow, which can easily damage the pump. Utility Model Content

[0004] This utility model provides an automatic switching flushing device for toilets, which can effectively solve the problems mentioned in the background art, such as slow switching speed, high power consumption of electric pumps, and easy backflow of sewage, which can easily damage the electric pump.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic toilet flushing device, comprising a toilet tank, wherein an electric pump is placed inside the toilet tank;

[0006] An impeller chamber is installed at one end of the electric pump, and an inlet pipe is fixed at one end of the impeller chamber. A first outlet connecting pipe is connected to the top of the impeller chamber along the external tangential direction. A second outlet connecting pipe is connected to the top of the impeller chamber at a position symmetrical to the first outlet connecting pipe. A centrifugal impeller is connected to the power output end of the electric pump. A first outlet pipe is snapped onto the top of the first outlet connecting pipe, and a second outlet pipe is installed on the top of the second outlet connecting pipe.

[0007] The top of the first water outlet pipe is connected to a limiting pipe, and a piston plate is movably engaged inside the limiting pipe. A stabilizing rod is fixed at the bottom end of the piston plate. A water outlet hole is opened in the middle of the limiting pipe. An installation short pipe is installed on the outside of the limiting pipe at the position corresponding to the water outlet hole. An interface pipe is engaged and fixed inside the installation short pipe. A top cover is installed on the top of the limiting pipe.

[0008] Preferably, the centrifugal impeller includes an impeller plate, a central chamber, long blades, and short blades;

[0009] The power output end of the electric pump is connected to an impeller plate, and a central chamber is opened in the middle of the impeller plate. Long blades are distributed at equal angles inside the central chamber, and short blades are distributed at equal angles inside the central chamber.

[0010] The long and short blades are distributed alternately.

[0011] Preferably, both the first and second water outlet connecting short pipes are connected to the impeller chamber, and the centrifugal impeller is located in the middle of the impeller chamber;

[0012] The input end of the electric pump is electrically connected to the output end of an external power source, and the input end of the impeller chamber is connected to the output end of the indoor water supply pipe.

[0013] Preferably, the piston plate is movably engaged with the inner bottom of the limiting tube, and one end of the interface tube is connected to the water channel of the toilet seat brush ring.

[0014] Preferably, a side hole is provided at the bottom of the first water outlet pipe, and a side short pipe is fixedly installed at the bottom of the first water outlet pipe corresponding to the position of the side hole. A movable ring is movably engaged inside the side short pipe, and a sealing pipe is fixedly connected to one side of the movable ring.

[0015] The top of the second water outlet connecting short pipe is snapped with a second water outlet pipe, the bottom of the second water outlet pipe is fixedly connected with a side connecting short pipe, and the top of the second water outlet pipe is snapped with a connecting elbow pipe.

[0016] Preferably, the connecting elbow is connected to the water jet channel of the toilet seat;

[0017] The side short pipe is fixedly connected to the side connecting short pipe, and one end of the movable ring is fixed at the connection position between the side short pipe and the first outlet pipe.

[0018] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0019] 1. By setting up a centrifugal impeller with impeller plates, a central chamber, long blades, and short blades, the long and short blades work together to separate the water flow first through the long blades and then through the short blades, thus saving electric pump power and achieving good centrifugal effect. In addition, with the symmetrically distributed first and second water outlet connecting pipes, the rotation direction of the centrifugal impeller can be switched by the electric pump, thereby switching the water output. The water from the first water outlet pipe sprays out from the brush ring water channel to flush the inner wall of the toilet seat, and the water from the second water outlet pipe sprays out from the jet water channel to flush the inner wall of the toilet seat, resulting in a stronger flush and a cleaner wash.

[0020] 2. By setting a movable piston plate, the piston plate moves down to below the outlet hole as the liquid level drops when the water outlet pipe ends, blocking the top of the first outlet pipe. This can block the sewage, making it less likely for the sewage to flow back and damage the electric pump.

[0021] 3. By setting up a movable ring and a sealing pipe, it can move between the first water outlet pipe and the second water outlet pipe. When water comes out of the first water outlet pipe, it can impact the movable ring and the sealing pipe to move and block the second water outlet pipe. When the second water outlet pipe is in use, the water flow will impact and move the sealing pipe, which will assist in the switching of water outlet and make the water outlet switching more flexible. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the impeller chamber of this utility model;

[0026] Figure 3 This is a schematic diagram of the centrifugal impeller of this utility model;

[0027] Figure 4 This is a schematic diagram showing the distribution of the long and short blades of this utility model;

[0028] Figure 5 This is a schematic diagram of the first water outlet pipe of this utility model when water is entering;

[0029] Figure 6 This is a schematic diagram of the second water outlet pipe of this utility model when water is entering;

[0030] The diagram shows the following components: 1. Toilet tank; 2. Electric pump; 3. Impeller chamber; 4. Inlet pipe; 5. First outlet connecting pipe; 6. Second outlet connecting pipe.

[0031] 7. Centrifugal impeller; 701. Impeller plate; 702. Central chamber; 703. Long blades; 704. Short blades;

[0032] 8. First water outlet pipe; 9. Limiting pipe; 10. Piston plate; 11. Stabilizing rod; 12. Water outlet hole; 13. Mounting short pipe; 14. Interface pipe; 15. Top cover; 16. Side hole; 17. Side short pipe; 18. Movable ring; 19. Sealing pipe; 20. Second water outlet pipe; 21. Side connecting short pipe; 22. Connecting bend. Detailed Implementation

[0033] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0034] Example: Figure 1-4 As shown, this utility model provides a technical solution: an automatic toilet flushing device, including a toilet tank 1, and an electric pump 2 is placed inside the toilet tank 1.

[0035] One end of the electric pump 2 is equipped with an impeller chamber 3. The input end of the electric pump 2 is electrically connected to the output end of the external power supply. The input end of the impeller chamber 3 is connected to the output end of the indoor water supply pipe for easy water intake. One end of the impeller chamber 3 is fixed with an inlet pipe 4. The top of the impeller chamber 3 is connected to a first outlet connecting short pipe 5 along the external tangent direction. The top of the impeller chamber 3 is connected to a second outlet connecting short pipe 6 at a position symmetrical to the first outlet connecting short pipe 5. The power output end of the electric pump 2 is connected to a centrifugal impeller 7. Both the first outlet connecting short pipe 5 and the second outlet connecting short pipe 6 are connected to the impeller chamber 3. The centrifugal impeller 7 is placed in the middle of the impeller chamber 3 for easy water switching. The top of the first outlet connecting short pipe 5 is snapped with a first outlet pipe 8. The top of the second outlet connecting short pipe 6 is equipped with a second outlet pipe 20.

[0036] The top of the first water outlet pipe 8 is connected to a limiting pipe 9. A piston plate 10 is movably engaged inside the limiting pipe 9. A stabilizing rod 11 is fixed at the bottom of the piston plate 10. A water outlet hole 12 is opened in the middle of the limiting pipe 9. A short installation pipe 13 is installed on the outside of the limiting pipe 9 at the position corresponding to the water outlet hole 12. An interface pipe 14 is fixed inside the short installation pipe 13. The piston plate 10 is movably engaged with the bottom inner side of the limiting pipe 9. One end of the interface pipe 14 is connected to the brush ring water channel of the toilet seat to facilitate the movement of the piston plate 10 and realize the function of blocking and stopping water. A top cover 15 is installed on the top of the limiting pipe 9.

[0037] The centrifugal impeller 7 includes an impeller plate 701, a central chamber 702, long blades 703, and short blades 704;

[0038] The power output end of the electric pump 2 is connected to an impeller plate 701. A central chamber 702 is provided in the middle of the impeller plate 701. Long blades 703 and short blades 704 are distributed at equal angles inside the central chamber 702. The long blades 703 and short blades 704 are distributed at equal angles. The long blades 703 and short blades 704 are staggered to facilitate the sequential separation of water flow and save the power of the electric pump 2.

[0039] The bottom of the first water outlet pipe 8 is provided with a side hole 16. A side short pipe 17 is fixedly installed at the bottom of the first water outlet pipe 8 corresponding to the position of the side hole 16. A movable ring 18 is movably engaged inside the side short pipe 17. The side short pipe 17 is engaged and fixedly connected to the side connecting short pipe 21. One end of the movable ring 18 is engaged at the connection position between the side short pipe 17 and the first water outlet pipe 8 to facilitate the movement of the movable ring 18. A sealing pipe 19 is fixedly connected to one side of the movable ring 18.

[0040] The top of the second water outlet connecting short pipe 6 is snapped with a second water outlet pipe 20, the bottom of the second water outlet pipe 20 is fixedly connected with a side connecting short pipe 21, and the top of the second water outlet pipe 20 is snapped with a connecting elbow 22. The connecting elbow 22 is connected to the spray water channel of the toilet seat for easy spraying and flushing.

[0041] Working principle and usage process of this utility model:

[0042] like Figure 5 As shown, when the toilet seat needs to be flushed with water, the electric pump 2 drives the centrifugal impeller 7 to rotate. Water enters the impeller chamber 3 from the inlet pipe 4 and enters the central chamber 702 from the middle of the centrifugal impeller 7. The centrifugal impeller 7 centrifuges the water in all directions. The water is first separated by the long blades 703 and then by the short blades 704. The water flow is separated in sequence, resulting in better separation and saving power. The water flow is discharged from the first outlet connecting short pipe 5 after centrifugation, enters the first outlet pipe 8 and impacts the piston plate 10 to move upward, exposing the outlet hole 12. The water flow enters the interface pipe 14 from the outlet hole 12 and sprays out through the flushing water channel of the toilet seat. It flows around and flushes along the inner wall of the toilet seat. The water in the limiting pipe 9 flows away, causing the water level to drop to below the outlet hole 12. The piston plate 10 then drops to below the outlet hole 12 and blocks the top of the first outlet pipe 8, which has a water-stopping function. This prevents sewage from flowing back into the first outlet pipe 8 and avoids sewage from damaging the electric pump 2.

[0043] like Figure 6 As shown, when the toilet seat is spraying water, the electric pump 2 drives the centrifugal impeller 7 to rotate in the opposite direction. The water in the impeller chamber 3 moves centrifugally in the opposite direction and flows out from the second water outlet connecting short pipe 6 and enters the interior of the second water outlet pipe 20, thereby impacting the sealing pipe 19 and causing the passage of the second water outlet pipe 20 to be opened. The water flows from the connecting bend pipe 22 into the spray water channel of the toilet seat and sprays and washes the inner wall of the toilet seat from top to bottom.

[0044] The electric pump 2 drives the centrifugal impeller 7 to change its rotation direction, thereby switching the water flow direction. This allows for selective water output between the first and second water outlet connecting pipes 5 and 6. When the water flows into the first water outlet pipe 8, it impacts the sealing pipe 19, causing the movable ring 18 and the sealing pipe 19 to move along the side short pipe 17 into the second water outlet pipe 20, thus blocking the water flow in the second water outlet pipe 20. When the water flows into the second water outlet pipe 20, it impacts the sealing pipe 19, allowing for free switching of water output and enabling switching of flushing for the toilet seat. Compared to existing water storage flushing and simultaneous flushing, this method offers greater flushing power and a cleaner wash.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic toilet flushing device, comprising a toilet tank (1), characterized in that: An electric pump (2) is placed inside the toilet tank (1); One end of the electric pump (2) is equipped with an impeller chamber (3), and one end of the impeller chamber (3) is fixed with an inlet pipe (4). The top of the impeller chamber (3) is connected to a first outlet connecting short pipe (5) along the external tangential direction. The top of the impeller chamber (3) is connected to a second outlet connecting short pipe (6) at a position symmetrical to the first outlet connecting short pipe (5). The power output end of the electric pump (2) is connected to a centrifugal impeller (7). The top of the first outlet connecting short pipe (5) is snapped with a first outlet pipe (8), and the top of the second outlet connecting short pipe (6) is equipped with a second outlet pipe (20). The top of the first water outlet pipe (8) is connected to a limiting pipe (9). A piston plate (10) is movably engaged inside the limiting pipe (9). A stabilizing rod (11) is fixed at the bottom of the piston plate (10). A water outlet hole (12) is opened in the middle of the limiting pipe (9). An installation short pipe (13) is installed on the outside of the limiting pipe (9) at the position corresponding to the water outlet hole (12). An interface pipe (14) is fixed inside the installation short pipe (13). A top cover (15) is installed on the top of the limiting pipe (9).

2. The toilet automatic switching flushing device according to claim 1, characterized in that: The centrifugal impeller (7) includes an impeller plate (701), a central chamber (702), long blades (703), and short blades (704). The power output end of the electric pump (2) is connected to an impeller plate (701). A central chamber (702) is provided in the middle of the impeller plate (701). Long blades (703) are distributed at equal angles inside the central chamber (702). Short blades (704) are distributed at equal angles inside the central chamber (702). The long blades (703) and short blades (704) are interleaved.

3. The toilet automatic switching flushing device according to claim 1, characterized in that: The first water outlet connecting short pipe (5) and the second water outlet connecting short pipe (6) are both connected to the impeller chamber (3), and the centrifugal impeller (7) is placed in the middle of the impeller chamber (3); The input end of the electric pump (2) is electrically connected to the output end of the external power supply, and the input end of the impeller chamber (3) is connected to the output end of the indoor water supply pipe; The piston plate (10) is movably engaged with the bottom inner side of the limiting tube (9), and one end of the interface tube (14) is connected to the water channel of the toilet seat brush ring.

4. The toilet automatic switching flushing device according to claim 1, characterized in that: The bottom of the first water outlet pipe (8) is provided with a side hole (16), and a side short pipe (17) is fixedly installed at the bottom of the first water outlet pipe (8) corresponding to the side hole (16). A movable ring (18) is movably connected inside the side short pipe (17), and a sealing pipe (19) is fixedly connected to one side of the movable ring (18). The top of the second water outlet connecting short pipe (6) is snapped with a second water outlet pipe (20), the bottom of the second water outlet pipe (20) is fixedly connected with a side connecting short pipe (21), and the top of the second water outlet pipe (20) is snapped with a connecting elbow pipe (22).

5. The toilet automatic switching flushing device according to claim 4, characterized in that: The connecting bend (22) is connected to the water jet channel of the toilet seat; The side short pipe (17) is fixedly connected to the side connecting short pipe (21), and one end of the movable ring (18) is fixed at the connection position between the side short pipe (17) and the first water outlet pipe (8).

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