Dispensing module with anti-cross-flow function

Abstract

This utility model discloses a dispensing module with anti-cross-flow function, including a water storage tank body. The water storage tank body has a first initial flow channel and a second initial flow channel. The water storage tank body also has a first intermediate flow channel, a second intermediate flow channel, and a third intermediate flow channel in the middle. The first and second initial flow channels form an initial flow region, and the first, second, and third intermediate flow channels form an intermediate flow region. A transition region is provided between the initial flow region and the intermediate flow region. At the end of the water storage tank body, there are a first outlet channel, a second outlet channel, and a third outlet channel. The first, second, and third outlet channels form an outlet region, which is separated from the intermediate flow region. This utility model provides a transition region, and different flow channels control water flow through different inlet valves. The separation of the outlet region from the intermediate flow region effectively avoids cross-flow or spray deviation.

Description

Technical Field

[0001] This utility model belongs to the technical field of washing machine accessories, specifically relating to a dispensing module with anti-water leakage function. Background Technology

[0002] Currently, most automatic dispensing systems in commercially available washing machines use a single water inlet valve for each water path. Some systems employ multiple inlet valves in a counter-current structure to control multiple water paths. A patent with publication number CN112853690A discloses a switcher comprising a camshaft, a valve core, and a switching valve body. The switching valve body has several inlets and outlets, each equipped with a valve core. The switching valve body contains a camshaft with several protrusions along its axial direction corresponding to a specific inlet or outlet. Adjacent protrusions are staggered at a certain angle. When any protrusion abuts against the corresponding valve core, it controls the valve core to disengage from the corresponding inlet or outlet. Existing dispensing systems control the flow path switching via a switching valve body, resulting in a complex structure and high manufacturing costs. Furthermore, the water inlet is directly connected to the inlet valve, requiring high-precision molding and making it prone to cross-contamination and leakage. Ultimately, this significantly impacts water flow and limits product functionality. Therefore, it is necessary to design a dispensing module with anti-cross-contamination function to overcome the above difficulties. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing a dispensing module with anti-cross-flow function. This invention provides a transition area between the initial flow area and the intermediate flow area, which facilitates the control of water flow in the corresponding flow channels through the inlet valves of different flow channels; the outlet area is separated from the intermediate flow area, thereby effectively avoiding cross-flow or jet deviation.

[0004] The objective of this invention is achieved through the following technical solution: a dispensing module with anti-cross-flow function, comprising a water storage tank body, on which a first initial flow channel and a second initial flow channel are arranged side-by-side adjacently. The inlet end of the first initial flow channel is provided with a first inlet valve communicating with it, and the inlet end of the second initial flow channel is provided with a second inlet valve communicating with it. The water storage tank body also has three adjacent first intermediate flow channels, a second intermediate flow channel, and a third intermediate flow channel in the middle, with the first initial flow channel facing the third intermediate flow channel and the second initial flow channel facing the first intermediate flow channel. The first and second initial flow channels constitute an initial flow area, and the first, second, and third intermediate flow channels constitute an intermediate flow area. A transition area is provided between the initial flow area and the intermediate flow area. At the end of the water storage tank body, a first outlet channel, a second outlet channel, and a third outlet channel are arranged side-by-side, constituting an outlet area, which is separated from the intermediate flow area.

[0005] Preferably, the first initial flow channel is connected to the third intermediate flow channel through the transition region, and the second initial flow channel is connected to the first intermediate flow channel through the transition region; the second intermediate flow channel is disposed between the first intermediate flow channel and the third intermediate flow channel; a drainage trough is provided between the intermediate flow region and the outlet region.

[0006] Preferably, the initial flow region, the transition region, and the intermediate flow region are integrally formed, and the transition region has a wall thickness.

[0007] Preferably, the first initial flow channel has a first left-side water jet at its end, and the third intermediate flow channel has a first right-side water inlet at its initial end, with the first left-side water jet and the first right-side water inlet aligned. The third intermediate flow channel has a second right-side water jet at its end, and the water outlet area includes a third water outlet channel, with a second right-side water inlet at its initial end, and the second right-side water jet and the second right-side water inlet aligned. The second initial flow channel has a first right-side water jet at its end, and the first intermediate flow channel has a first left-side water inlet at its initial end, with the first right-side water jet and the first left-side water inlet aligned. The first intermediate flow channel has a second left-side water jet at its end, and the water outlet area includes a first water outlet channel, with a second left-side water inlet at its initial end, and the second left-side water jet and the second left-side water inlet aligned.

[0008] Preferably, the end of the first initial flow channel is closely attached to the end of the second initial flow channel; the initial ends of the first intermediate flow channel, the second intermediate flow channel, and the third intermediate flow channel are all closely attached; the initial end of the second intermediate flow channel is provided with a first intermediate water inlet, which is located between the first right water inlet and the first left water inlet; there is an angle between the first left water inlet and the first right water inlet, and both the first left water inlet and the first right water inlet are oriented towards the first intermediate water inlet; the end of the second intermediate flow channel is provided with a second intermediate water inlet, and the water outlet area includes a second water outlet channel, the initial end of the second water outlet channel is provided with a second intermediate water inlet, and the second intermediate water inlet is aligned with the second intermediate water inlet.

[0009] Preferably, the ends of the first intermediate flow channel, the second intermediate flow channel, and the third intermediate flow channel are all arranged parallel to each other. The water outlet area includes a first water outlet channel, a second water outlet channel, and a third water outlet channel, which are arranged side by side and adjacent to each other. The first intermediate flow channel is aligned with the first water outlet channel, the second intermediate flow channel is aligned with the second water outlet channel, and the third intermediate flow channel is aligned with the third water outlet channel. The distance between the ends of any two of the first, second, and third intermediate flow channels is greater than the initial distance between the ends of any two of the first, second, and third intermediate flow channels.

[0010] Preferably, a flexible hose is provided between the first inlet valve and the main body of the water storage tank to connect the two, and a flexible hose is also provided between the second inlet valve and the main body of the water storage tank to connect the two; the main body of the water storage tank includes an upper cover and a lower cover, which are fixedly connected; the lower cover is provided with a drain groove connecting the water outlet area and the intermediate flow area.

[0011] The initial flow channel area and the intermediate flow channel area are not separated; the initial flow area, transition area, and intermediate flow area are integrally formed. The first initial flow channel connects to the third intermediate flow channel through the transition area, and the second initial flow channel connects to the first intermediate flow channel through the transition area. When the water inlet flow of the first or second inlet valve is large and supplied individually, the water in the first initial flow channel can smoothly enter the third intermediate flow channel and then flow from the third intermediate flow channel to the third outlet channel; similarly, the water in the second initial flow channel can smoothly enter the first intermediate flow channel and then flow from the first intermediate flow channel to the first outlet channel. Because the water inlet flow is large at this time, the amount of water flowing from the first or second initial flow channel into the second intermediate flow channel is small, resulting in less cross-contamination and allowing each flow channel to discharge water independently. When the water inlet flow of the first and second inlet valves is large and supplied simultaneously, the water flows against the first left and first right jet nozzles, allowing the water to smoothly enter the second intermediate flow channel and then flow from the second intermediate flow channel to the second outlet channel.

[0012] When the water flow from the first or second inlet valve is small, the water can converge in the transition area and then smoothly enter the corresponding first, second, and third intermediate flow channels. Because the inflow is small at this time, some water may flow into the second intermediate flow channel. However, since the outlet area and the intermediate flow area are separated, the force of the water entering the second intermediate flow channel is relatively small, so the water will automatically flow into the drain tank and will not flow out through the second outlet channel in the outlet area. Therefore, when the water finally flows out through the corresponding first, second, and third outlet channels in the outlet area, there will be no cross-flow. When the water flow rate is small, water entering from the first initial flow channel can flow out through the third outlet channel, water entering from the second initial flow channel can flow out through the first outlet channel, and water entering from both the first and second initial flow channels can flow out through the second outlet channel. Thus, by using two first and second initial flow channels, the water flow from the three water paths can be freely controlled, resulting in better versatility.

[0013] The outlet area and the intermediate flow area are separated by a considerable distance; there are no obvious obstructions around the outlet area and the intermediate flow area, so that the water jet will not be reflected due to obstruction, ensuring that the water jet from the intermediate flow area is collected by the outlet area to the maximum extent.

[0014] When the first or second inlet valve suddenly stops supplying water, creating negative pressure, the water pressure is insufficient to spray into the outlet area, and the entire water circuit is disconnected. Due to the separation between the outlet area and the intermediate flow area, the water that has come into contact with the detergent cannot cross the horizontal space partition structure to flow back to the end of the intermediate flow area, but will only flow back from the drain trough into the main body of the storage tank. Because the negative pressure generated at the end of the intermediate flow area can only draw in air, it protects the tap water pipes from contamination.

[0015] Preferably, the initial flow area and the intermediate flow area are separated by a transition area, which is hollowed out; an overflow outlet is provided directly below the transition area, and the overflow outlet is integrally formed with the main body of the water storage tank.

[0016] Here, the transition area separates the initial flow area from the intermediate flow area. When the water inlet volume of the main body of the water storage tank is large and either the first inlet valve or the second inlet valve is inleting water alone, some water flows from the hollow transition area to the overflow outlet; thus, the amount of water entering the second intermediate flow channel is small, and the cross-contamination phenomenon is minimal. When the water inlet volume of the first inlet valve and the second inlet valve is large and they are inleting water simultaneously, the water flows against the first left-side jet outlet and the first right-side jet outlet, allowing the water to smoothly enter the second intermediate flow channel, resulting in good water output and preventing excessive cross-contamination.

[0017] Compared with the prior art, the present invention has the following advantages: 1. Water can be conveniently discharged from the corresponding outlet area in three ways through the two first initial flow channels and the second initial flow channel, which has good controllability and better versatility; 2. By isolating the outlet area and the intermediate flow channel area, cross-flow phenomenon is avoided during the final water discharge, resulting in better water discharge effect; 3. Since the outlet area and the intermediate flow area are horizontally separated, sewage backflow is avoided, resulting in a better user experience. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a diagram of the internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the water channels inside the main body of the water storage tank of this utility model;

[0021] Figure 4 This is a schematic diagram showing water entering through the first initial flow channel;

[0022] Figure 5 A schematic diagram of water entering from the second initial flow channel.

[0023] Figure 6 A schematic diagram showing water entering from the first and second initial flow channels.

[0024] Figure 7 This is a schematic diagram of the second embodiment;

[0025] The diagram shows the following markings: 1. Main body of the water storage tank; 2. First initial flow channel; 21. First left-side water jet; 3. Second initial flow channel; 31. First right-side water jet; 4. First inlet valve; 5. Second inlet valve; 6. First intermediate flow channel; 61. First left-side water inlet; 62. Second left-side water jet; 7. Second intermediate flow channel; 71. First intermediate water inlet; 72. Second intermediate water jet; 8. Third intermediate flow channel; 81. First right-side water inlet; 82. Second right-side water jet; 9. Transition area; 10. First outlet channel; 101. Second left-side water inlet; 11. Second outlet channel; 111. Second intermediate water inlet; 12. Third outlet channel; 121. Second right-side water inlet; 13. Drainage trough; 14. Hose; 15. Top cover; 16. Bottom cover; 17. Overflow outlet. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0027] Example 1

[0028] like Figures 1 to 6 As shown, this embodiment discloses a dispensing module with anti-cross-flow function, including a water storage tank body 1. The water storage tank body 1 has a first initial flow channel 2 and a second initial flow channel 3 arranged side-by-side. The inlet end of the first initial flow channel 2 is provided with a first inlet valve 4 communicating with it, and the inlet end of the second initial flow channel 3 is provided with a second inlet valve 5 communicating with it. The water storage tank body 1 also has three adjacent first intermediate flow channels 6, second intermediate flow channels 7, and third intermediate flow channels 8 in the middle. The first initial flow channel 2 faces the third intermediate flow channel 8. The initial flow channel 3 is positioned towards the first intermediate flow channel 6; the first initial flow channel 2 and the second initial flow channel 3 constitute the initial flow region, the first intermediate flow channel 6, the second intermediate flow channel 7 and the third intermediate flow channel 8 constitute the intermediate flow region, and a transition region 9 is provided between the initial flow region and the intermediate flow region; the end of the main body 1 of the water storage tank is provided with an adjacent first water outlet channel 10, a second water outlet channel 11 and a third water outlet channel 12, which constitute the water outlet region, and the water outlet region is separated from the intermediate flow region.

[0029] The first initial flow channel 2 is connected to the third intermediate flow channel 8 through the transition region 9, and the second initial flow channel 3 is connected to the first intermediate flow channel 6 through the transition region 9; the second intermediate flow channel 7 is disposed between the first intermediate flow channel 6 and the third intermediate flow channel 8; a drainage trough 13 is provided between the intermediate flow region and the outlet region. The initial flow region, the transition region 9, and the intermediate flow region are integrally formed, and the transition region 9 has a wall thickness. The first initial flow channel 2 has a first left-side water jet 21 at its end, and the third intermediate flow channel 8 has a first right-side water inlet 81 at its initial end. The first left-side water jet 21 and the first right-side water inlet 81 are aligned. The third intermediate flow channel 8 has a second right-side water jet 82 at its end. The water outlet area includes a third water outlet channel 12, and the third water outlet channel 12 has a second right-side water inlet 121 at its initial end. The second right-side water jet 82 and the second right-side water inlet 121 are aligned. The second initial flow channel 3 has a first right-side water jet 31 at its end, and the first intermediate flow channel 6 has a first left-side water inlet 61 at its initial end. The first right-side water jet 31 and the first left-side water inlet 61 are aligned. The first intermediate flow channel 6 has a second left-side water jet 62 at its end. The water outlet area includes a first water outlet channel 10, and the first water outlet channel 10 has a second left-side water inlet 101 at its initial end. The second left-side water jet 62 and the second left-side water inlet 101 are aligned. The end of the first initial flow channel 2 is closely attached to the end of the second initial flow channel 3; the initial ends of the first intermediate flow channel 6, the second intermediate flow channel 7, and the third intermediate flow channel 8 are all closely attached; the initial end of the second intermediate flow channel 7 is provided with a first intermediate water inlet 71, which is located between the first right water inlet 81 and the first left water inlet 61; there is an angle between the first left water inlet 21 and the first right water inlet 31, which are both oriented towards the first intermediate water inlet 71; the end of the second intermediate flow channel 7 is provided with a second intermediate water inlet 72, and the water outlet area includes a second water outlet channel 11, the initial end of which is provided with a second intermediate water inlet 111, and the second intermediate water inlet 72 is aligned with the second intermediate water inlet 111.The ends of the first intermediate flow channel 6, the second intermediate flow channel 7, and the third intermediate flow channel 8 are all arranged parallel to each other. The water outlet area includes a first water outlet channel 10, a second water outlet channel 11, and a third water outlet channel 12. The first water outlet channel 10, the second water outlet channel 11, and the third water outlet channel 12 are arranged side by side and adjacent to each other. The first intermediate flow channel 6 is aligned with the first water outlet channel 10, the second intermediate flow channel 7 is aligned with the second water outlet channel 11, and the third intermediate flow channel 8 is aligned with the third water outlet channel 12. The distance between the ends of any two of the first intermediate flow channels 6, the second intermediate flow channels 7, and the third intermediate flow channels 8 is greater than the initial distance between any two of the first intermediate flow channels 6, the second intermediate flow channels 7, and the third intermediate flow channels 8. A flexible hose 14 is provided between the first water inlet valve 4 and the main body of the water storage tank 1 to connect the two. A flexible hose 14 is also provided between the second water inlet valve 5 and the main body of the water storage tank 1 to connect the two. The main body of the water storage tank 1 includes an upper cover 15 and a lower cover 16, which are fixedly connected. A drain trough 13 is provided on the lower cover 16 to connect the water outlet area and the intermediate flow area.

[0030] The specific operation process of this embodiment is as follows: the initial flow channel area and the intermediate flow channel area are not separated; the initial flow area, transition area 9, and intermediate flow area are integrally formed. The first initial flow channel 2 connects to the third intermediate flow channel 8 through the transition area 9, and the second initial flow channel 3 connects to the first intermediate flow channel 6 through the transition area 9. When the water inlet volume of the first inlet valve 4 or the second inlet valve 5 is large and supplied individually, the water in the first initial flow channel 2 can smoothly enter the third intermediate flow channel 8 and then flow from the third intermediate flow channel 8 to the third outlet channel 12. Similarly, the water in the second initial flow channel 3 can smoothly enter the first intermediate flow channel 6 and then flow from the first intermediate flow channel 6 to the first outlet channel 10. Because the water inlet volume is large at this time, the amount of water flowing from the first initial flow channel 2 or the second initial flow channel 3 into the second intermediate flow channel 7 is small, resulting in less cross-contamination and allowing each flow channel to discharge water independently. When the water intake of the first inlet valve 4 and the second inlet valve 5 is large and water is supplied at the same time, the water flow will collide with the first left water jet 21 and the first right water jet 31, and then the water flow can smoothly enter the second intermediate flow channel 7, and then flow from the second intermediate flow channel 7 to the second outlet channel 11.

[0031] When the water flow from the first inlet valve 4 or the second inlet valve 5 is small, the water flow can converge in the transition area 9, and then smoothly enter the corresponding first intermediate flow channel 6, second intermediate flow channel 7, and third intermediate flow channel 8. Because the water flow is small at this time, some water will flow into the second intermediate flow channel 7. However, since the outlet area and the intermediate flow area are separated, the force of the water entering the second intermediate flow channel 7 is relatively small, so the water will automatically flow into the drain tank 13 and will not flow out from the second outlet channel 11 in the outlet area. Therefore, when the water finally flows out from the corresponding first outlet channel 10, second outlet channel 11, and third outlet channel 12 in the outlet area, there will be no cross-flow. When the water flow rate is small, water entering from the first initial flow channel 2 can flow out from the third outlet channel 12, water entering from the second initial flow channel 3 can flow out from the first outlet channel 10, and water entering from both the first initial flow channel 2 and the second initial flow channel 3 can flow out from the second outlet channel 11. It can be seen that the water output of the three water channels can be freely controlled through the two first initial flow channels 2 and the second initial flow channels 3, which has better versatility.

[0032] The outlet area and the intermediate flow area are separated by a considerable distance; there are no obvious obstructions around the outlet area and the intermediate flow area, so that the water jet will not be reflected due to obstruction, ensuring that the water jet from the intermediate flow area is collected by the outlet area to the maximum extent.

[0033] When the first inlet valve 4 or the second inlet valve 5 suddenly stops water and creates negative pressure, the water pressure is insufficient to spray into the outlet area, and the entire water circuit is disconnected. Due to the isolation effect between the outlet area and the intermediate flow area, the water that has come into contact with the detergent cannot cross the horizontal space isolation structure to flow back to the end of the intermediate flow area, but will only flow back from the drain trough 13 into the main body of the water storage tank 1. Since the negative pressure generated at the end of the intermediate flow area can only draw in air, it can protect the tap water pipe from contamination.

[0034] Example 2

[0035] like Figure 7 As shown, the main structure of this embodiment is the same as that of embodiment 1, except that the transition area is different. In this embodiment 2, the transition area 9 is set with a hollow partition, and an overflow port 17 is set directly below the transition area 9. The initial flow area and the intermediate flow area are separated by the transition area 9, which is hollow; the overflow port 17 is provided directly below the transition area 9, and the overflow port 17 is integrally formed with the main body 1 of the water storage tank.

[0036] Here, the transition area 9 separates the initial flow area from the intermediate flow area. When the water inlet volume of the main body 1 of the water storage tank is large and either the first inlet valve 4 or the second inlet valve 5 is inleting water alone, some water flows from the hollow transition area 9 to the overflow port 17. Therefore, the amount of water entering the second intermediate flow channel 7 is small, and the cross-contamination phenomenon is minimal. When the water inlet volume of the first inlet valve 4 and the second inlet valve 5 is large and they are inleting water simultaneously, the water flows against the first left-side jet port 21 and the first right-side jet port 31, allowing the water to smoothly enter the second intermediate flow channel 7, resulting in good water output and minimal cross-contamination.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A dispensing module with anti-cross-flow function, comprising a water storage tank body (1), characterized in that, The main body (1) of the water storage tank is provided with a first initial flow channel (2) and a second initial flow channel (3) arranged side by side. The inlet end of the first initial flow channel (2) is provided with a first inlet valve (4) connected to it, and the inlet end of the second initial flow channel (3) is provided with a second inlet valve (5) connected to it. The main body (1) of the water storage tank is also provided with three adjacent first intermediate flow channels (6), second intermediate flow channels (7) and third intermediate flow channels (8). The first initial flow channel (2) is set towards the third intermediate flow channel (8), and the second initial flow channel (3) is set towards the first intermediate flow channel (6). The first initial flow channel (2) and the second initial flow channel (3) constitute the initial flow area, the first intermediate flow channel (6), the second intermediate flow channel (7) and the third intermediate flow channel (8) constitute the intermediate flow area, and a transition area (9) is provided between the initial flow area and the intermediate flow area; the end of the main body of the water storage tank (1) is provided with an adjacent first water outlet channel (10), a second water outlet channel (11) and a third water outlet channel (12), the first water outlet channel (10), the second water outlet channel (11) and the third water outlet channel (12) constitute the water outlet area, and the water outlet area is separated from the intermediate flow area.

2. The drop module with anti-bleed function according to claim 1, characterized in that, The first initial flow channel (2) is connected to the third intermediate flow channel (8) through the transition area (9), and the second initial flow channel (3) is connected to the first intermediate flow channel (6) through the transition area (9); the second intermediate flow channel (7) is located between the first intermediate flow channel (6) and the third intermediate flow channel (8); a drainage trough (13) is provided between the intermediate flow area and the outlet area.

3. The drop module with anti-bleed function according to claim 2, characterized in that, The initial flow region, the transition region (9) and the intermediate flow region are integrally formed, and the transition region (9) has a wall thickness.

4. The drop module with anti-bleed function according to claim 2, characterized in that, The first initial flow channel (2) is provided with a first left-side water jet (21) at its end, and the third intermediate flow channel (8) is provided with a first right-side water inlet (81) at its initial end. The first left-side water jet (21) and the first right-side water inlet (81) are aligned. The third intermediate flow channel (8) is provided with a second right-side water jet (82) at its end. The water outlet area includes a third water outlet channel (12). The third water outlet channel (12) is provided with a second right-side water inlet (121) at its initial end. The second right-side water jet (82) and the second right-side water inlet (121) are aligned. The second initial flow channel (3) is provided with a first right-side water jet (31) at its end, and the first middle flow channel (6) is provided with a first left-side water inlet (61) at its initial end. The first right-side water jet (31) and the first left-side water inlet (61) are aligned. The first middle flow channel (6) is provided with a second left-side water jet (62) at its end. The water outlet area includes a first water outlet channel (10). The first water outlet channel (10) is provided with a second left-side water inlet (101) at its initial end. The second left-side water jet (62) and the second left-side water inlet (101) are aligned.

5. The drop module with anti-bleed function according to claim 3, characterized in that, The end of the first initial flow channel (2) is closely attached to the end of the second initial flow channel (3); the initial ends of the first intermediate flow channel (6), the second intermediate flow channel (7) and the third intermediate flow channel (8) are all closely attached; the initial end of the second intermediate flow channel (7) is provided with a first intermediate water inlet (71), which is located between the first right water inlet (81) and the first left water inlet (61); there is an angle between the first left water inlet (21) and the first right water inlet (31), which are both facing the first intermediate water inlet (71); the end of the second intermediate flow channel (7) is provided with a second intermediate water inlet (72), and the water outlet area includes a second water outlet channel (11), the initial end of the second water outlet channel (11) is provided with a second intermediate water inlet (111), and the second intermediate water inlet (72) is aligned with the second intermediate water inlet (111).

6. The drop module with anti-bleed function according to claim 2, characterized in that, The ends of the first intermediate flow channel (6), the second intermediate flow channel (7), and the third intermediate flow channel (8) are all arranged parallel to each other. The water outlet area includes the first water outlet channel (10), the second water outlet channel (11), and the third water outlet channel (12). The first water outlet channel (10), the second water outlet channel (11), and the third water outlet channel (12) are arranged side by side and adjacent to each other. The first intermediate flow channel (6) is aligned with the first water outlet channel (10), the second intermediate flow channel (7) is aligned with the second water outlet channel (11), and the third intermediate flow channel (8) is aligned with the third water outlet channel (12). The distance between the ends of any two of the first intermediate flow channels (6), the second intermediate flow channels (7), and the third intermediate flow channels (8) is greater than the initial distance between any two of the first intermediate flow channels (6), the second intermediate flow channels (7), and the third intermediate flow channels (8).

7. The drop module with anti-bleed function according to claim 1, characterized in that, A hose (14) is provided between the first water inlet valve (4) and the main body of the water storage tank (1) to connect the two. A hose (14) is also provided between the second water inlet valve (5) and the main body of the water storage tank (1). The main body of the water storage tank (1) includes an upper cover (15) and a lower cover (16), which are fixedly connected. A drain trough (13) is provided on the lower cover (16) to connect the water outlet area and the intermediate flow area.

8. The drop module with anti-bleed function according to claim 2, characterized in that, The initial flow area and the intermediate flow area are separated by a transition area (9), which is hollowed out; an overflow outlet (17) is provided directly below the transition area (9), and the overflow outlet (17) is integrally formed with the main body (1) of the water storage tank.

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