A toilet flushing pump and its flushing structure

Abstract

This utility model belongs to the technical field of toilet accessories, and relates to a toilet flushing pump and its flushing structure. It includes a pump housing, within which a motor-driven impeller is disposed. The pump housing has an axially distributed inlet, a first outlet arranged in a forward spiral, and a second outlet arranged in a reverse spiral. When the motor drives the impeller to rotate forward, the forward spiral water flow exits from the first outlet; when the motor drives the impeller to rotate in reverse, the reverse spiral water flow exits from the second outlet. A first baffle plate and a second baffle plate are disposed in the flow channel area between the first and second outlets. The first baffle plate is adjacent to the first outlet and blocks the reverse spiral water flow from entering the first outlet, and the second baffle plate is adjacent to the second outlet and blocks the forward spiral water flow from entering the second outlet. The toilet flushing pump and its flushing structure provided by this utility model can save space and reduce costs.

Description

Technical Field

[0001] This utility model belongs to the technical field of toilet accessories, and relates to a toilet flushing pump and its flushing structure. Background Technology

[0002] The conventional flushing mechanism of a toilet is as follows: tap water is injected into the tank through the inlet valve (usually with a float control device). When flushing, pressing the flush button or triggering the sensor releases the stored water from the tank. The water flow is generally divided into two paths: one part is flushed out at high speed from the bottom flush nozzle of the toilet, pushing the waste into the drain pipe and using the siphon effect to suck the waste into the sewage pipe; the other part is flushed out in a ring shape from the flush nozzle on the inner edge of the skirt, cleaning the inner wall of the toilet and helping to form a vortex to enhance the flushing effect.

[0003] To enhance flushing performance, existing toilets use booster flushing pumps, with two pumps controlling the bottom flush and the skirt flush respectively. However, the dual-pump structure takes up too much space in the toilet, especially in the tank, and also increases costs. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a toilet flushing pump and its flushing structure, which can save space and reduce costs.

[0005] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:

[0006] A toilet flushing pump includes a pump casing, within which a motor-driven impeller is disposed. The pump casing has an axially distributed inlet, a first outlet arranged in a forward spiral, and a second outlet arranged in a reverse spiral. When the motor drives the impeller to rotate in the forward direction, the forward spiral water flow exits from the first outlet; when the motor drives the impeller to rotate in the reverse direction, the reverse spiral water flow exits from the second outlet. A first baffle plate and a second baffle plate are disposed in the flow channel area between the first outlet and the second outlet. The first baffle plate is adjacent to the first outlet and blocks the reverse spiral water flow from entering the first outlet, and the second baffle plate is adjacent to the second outlet and blocks the forward spiral water flow from entering the second outlet.

[0007] In the above-mentioned toilet flushing pump, the inlet is connected to an axial inlet interface, the first outlet is connected to a vertical first outlet interface, and the second outlet is connected to a vertical second outlet interface. The inlet interface, the first outlet interface, and the second outlet interface are integrally formed with the pump casing.

[0008] In the aforementioned toilet flushing pump, the first baffle plate and the second baffle plate are integrally formed on the inner wall of the pump casing. The ratio of the radial extension dimension of the first baffle plate and the second baffle plate to the radial distance between the impeller and the pump casing is 1 / 3 to 2 / 3. The radial extension dimension of the first baffle plate and the second baffle plate refers to the projected dimension of the first baffle plate and the second baffle plate in the radial direction. The first baffle plate and the second baffle plate are not necessarily radially arranged. The radial distance between the impeller and the pump casing refers to the distance between the outer circumferential surface of the impeller and the relative inner wall of the pump casing. If the distance is not uniform, it is the average distance.

[0009] This utility model also provides a toilet flushing structure with the above-mentioned toilet flushing pump, including the flushing pump, a water tank and an inlet valve. The inlet valve is installed in the water tank and connected to a water source. The water tank is the water supply device for the flushing pump. The first outlet of the flushing pump is connected to a first flushing pipe and the second outlet is connected to a second flushing pipe. One of the first flushing pipe and the second flushing pipe is connected to a skirt flushing nozzle and the other is connected to a bottom flushing nozzle.

[0010] In the above-mentioned toilet flushing structure, the top of the water tank is covered with a tank cover and a valve cover, which together seal the inner cavity of the water tank. The valve cover is located above the water inlet valve, and the flushing pump is located at the bottom of the water tank.

[0011] In the above-mentioned toilet flushing structure, the water tank has a U-shaped structure, the flushing pump is located on one side of the water tank, and the inlet valve is located on the other side of the water tank.

[0012] Alternatively, in one of the above-mentioned toilet flushing structures, the flushing pump is located outside the water tank, and the bottom of the water tank is connected to the water inlet of the flushing pump via a connecting pipe.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This invention provides a toilet flushing pump and flushing structure. A bidirectional motor drives an impeller to rotate in both directions, generating forward and reverse spiral water flows. The forward spiral water flow exits through a first outlet, and the reverse spiral water flow exits through a second outlet, supplying water to the skirt-mounted and bottom-mounted flushing heads respectively. This achieves the effect of one flushing pump controlling two sets of flushing heads. Simultaneously, this invention also includes a first baffle and a second baffle to prevent water from entering non-selective outlets, ensuring unidirectional water flow. This invention, with its two-in-one flushing pump, saves space and reduces costs. Attached Figure Description

[0015] Figure 1 This is a perspective view of Embodiment 1 of this utility model;

[0016] Figure 2 This is a radial sectional view of Embodiment 1 of this utility model;

[0017] Figure 3 This is a perspective view of Embodiment 2 of this utility model;

[0018] Figure 4 This is a top view of Embodiment 2 of this utility model (with the box cover and valve cover removed);

[0019] Figure 5 This is a perspective view of embodiment 3 of this utility model;

[0020] Reference numerals in the attached diagram: 1. Pump casing; 2. Motor; 3. Impeller; 4. Inlet; 5. First outlet; 6. Second outlet; 7. First baffle; 8. Second baffle; 9. Inlet interface; 10. First outlet interface; 11. Second outlet interface; 12. Water tank; 13. Inlet valve; 14. First flush pipe; 15. Second flush pipe; 16. Tank cover; 17. Valve cover; 18. Connecting pipe. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-5 :

[0022] Example 1

[0023] A toilet flushing pump

[0024] Comparison Appendix Figure 1 and attached Figure 2 A toilet flushing pump includes a pump casing 1, an impeller 3 driven by a motor 2 is disposed inside the pump casing 1, an axially distributed inlet 4, a first outlet 5 distributed in a forward spiral in the circumferential direction, and a second outlet 6 distributed in a reverse spiral in the circumferential direction. When the motor 2 drives the impeller 3 to rotate in the forward direction, the forward spiral water flow exits from the first outlet 5, and when the motor 2 drives the impeller 3 to rotate in the reverse direction, the reverse spiral water flow exits from the second outlet 6. A first baffle plate 7 and a second baffle plate 8 are disposed in the flow channel area between the first outlet 5 and the second outlet 6. The first baffle plate 7 is adjacent to the first outlet 5 and blocks the reverse spiral water flow from entering the first outlet 5, and the second baffle plate 8 is adjacent to the second outlet 6 and blocks the forward spiral water flow from entering the second outlet 6.

[0025] The operation of this embodiment is as follows: Motor 2 is started. When motor 2 rotates in the forward direction, motor 2 drives impeller 3 to rotate in the forward direction (see appendix). Figure 2When the impeller 3 rotates counterclockwise (which is the forward rotation), it generates a positive spiral water flow. The positive spiral water flow enters the first outlet 5 along its spiral channel to exit. Since the second outlet 6 is not in the flow channel area of ​​the positive spiral water flow, it will not flow towards the second outlet 6. At the same time, the second baffle 8 adjacent to the second outlet 6 can also block some of the water flow that may splash into the second outlet 6, further ensuring the unidirectional nature of the water flow. When the motor 2 rotates in the forward direction, the motor 2 drives the impeller 3 to rotate in the reverse direction, generating a reverse spiral water flow. The reverse spiral water flow enters the second outlet 6 along its spiral channel to exit. Since the first outlet 5 is not in the flow channel area of ​​the reverse spiral water flow, it will not flow towards the first outlet 5. At the same time, the first baffle 7 adjacent to the first outlet 5 can also block some of the water flow that may splash into the first outlet 5, further ensuring the unidirectional nature of the water flow.

[0026] The aforementioned inlet 4 is connected to the axial inlet interface 9, the first outlet 5 is connected to the vertical first outlet interface 10, and the second outlet 6 is connected to the vertical second outlet interface 11. The inlet interface 9, the first outlet interface 10, and the second outlet interface 11 are integrally formed with the pump casing 1.

[0027] Preferably, the first baffle plate 7 and the second baffle plate 8 are integrally formed on the inner wall of the pump casing 1. The ratio of the radial extension dimension of the first baffle plate 7 and the second baffle plate 8 to the radial distance between the impeller 3 and the pump casing 1 is 1 / 3-2 / 3. The above structure can take into account both the unidirectionality of water flow and the balance of water flow resistance, and avoid excessive water flow pressure loss.

[0028] Example 2

[0029] A toilet flushing structure

[0030] Comparison Appendix Figure 3 and attached Figure 4 A toilet flushing structure includes a flushing pump, a water tank 12, and an inlet valve 13 as described in Embodiment 1. The inlet valve 13 is installed inside the water tank 12 and connected to a water source. The water tank 12 is a water supply device for the flushing pump. The first outlet 5 of the flushing pump is connected to a first flushing pipe 14, and the second outlet 6 is connected to a second flushing pipe 15. One of the first flushing pipe 14 and the second flushing pipe 15 is connected to a skirt flushing nozzle, and the other is connected to a bottom flushing nozzle.

[0031] The operation of this embodiment is as follows: Tap water is injected into the water tank 12 through the inlet valve 13 (with float control). The valve automatically closes when the water level reaches the set height. When the user presses the flush button or triggers the sensor, the control circuit starts the flush pump motor 2. The direction of rotation of the motor 2 is controlled to switch the flushing mode. In forward rotation mode, the skirt is flushed; in reverse rotation mode, the bottom is flushed. This embodiment can perform skirt flushing alone, bottom flushing alone, or alternating between skirt flushing and bottom flushing.

[0032] Furthermore, the top of the water tank 12 is covered with a tank cover 16 and a valve cover 17, which together seal the inner cavity of the water tank 12. The valve cover 17 is located above the water inlet valve 13, and the flushing pump is located at the bottom of the water tank 12. The tank cover 16 and the valve cover 17 can be a separate structure or an integrated structure.

[0033] Furthermore, the water tank 12 has a U-shaped structure, the flushing pump is located on one side of the water tank 12, and the inlet valve 13 is located on the other side of the water tank 12.

[0034] Example 3

[0035] A toilet flushing structure

[0036] The structure of this embodiment is largely the same as that of embodiment 2, and its flushing process is also the same as that of embodiment 2. The main difference lies in the installation method of the flushing pump: the flushing pump is set on the outside of the water tank 12, and the bottom of the water tank 12 is connected to the water inlet 9 of the flushing pump through a connecting pipe 18.

[0037] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A toilet flushing pump, comprising a pump housing (1), wherein an impeller (3) driven by a motor (2) is disposed within the pump housing (1), characterized in that, The pump casing (1) is provided with an axially distributed inlet (4), a first outlet (5) with a circumferentially spiral distribution, and a second outlet (6) with a reverse spiral distribution. When the motor (2) drives the impeller (3) to rotate in the forward direction, the spiral water flow exits from the first outlet (5). When the motor (2) drives the impeller (3) to rotate in the reverse direction, the reverse spiral water flow exits from the second outlet (6). A first baffle plate (7) and a second baffle plate (8) are provided in the flow channel area between the first outlet (5) and the second outlet (6). The first baffle plate (7) is adjacent to the first outlet (5) and blocks the reverse spiral water flow from entering the first outlet (5). The second baffle plate (8) is adjacent to the second outlet (6) and blocks the spiral water flow from entering the second outlet (6).

2. A toilet flushing pump according to claim 1, characterized in that, The inlet (4) is connected to the axial inlet interface (9), the first outlet (5) is connected to the vertical first outlet interface (10), and the second outlet (6) is connected to the vertical second outlet interface (11). The inlet interface (9), the first outlet interface (10), and the second outlet interface (11) are integrally formed with the pump casing (1).

3. A toilet flushing pump according to claim 1, characterized in that, The first baffle plate (7) and the second baffle plate (8) are integrally formed on the inner wall of the pump casing (1). The ratio of the radial extension dimension of the first baffle plate (7) and the second baffle plate (8) to the radial distance between the impeller (3) and the pump casing (1) is 1 / 3-2 / 3.

4. A toilet flushing structure having a toilet flushing pump according to any one of claims 1-3, characterized in that, Includes the flushing pump, water tank (12) and inlet valve (13). The inlet valve (13) is located in the water tank (12) and connected to a water source. The water tank (12) is the water supply device for the flushing pump. The first outlet (5) of the flushing pump is connected to the first flushing pipe (14), and the second outlet (6) is connected to the second flushing pipe (15). One of the first flushing pipe (14) and the second flushing pipe (15) is connected to the skirt flushing nozzle, and the other is connected to the bottom flushing nozzle.

5. The toilet flushing structure according to claim 4, characterized in that, The top of the water tank (12) is covered with a tank cover (16) and a valve cover (17). The tank cover (16) and the valve cover (17) together seal the inner cavity of the water tank (12). The valve cover (17) is located above the water inlet valve (13). The flushing pump is located at the bottom of the water tank (12).

6. The toilet flushing structure according to claim 5, characterized in that, The water tank (12) has a U-shaped structure, and the flushing pump is located on one side of the water tank (12) and the inlet valve (13) is located on the other side of the water tank (12).

7. A toilet flushing structure according to claim 4, characterized in that, The flushing pump is located outside the water tank (12), and the bottom of the water tank (12) is connected to the water inlet (9) of the flushing pump through a connecting pipe (18).

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