Waterway board and water purification equipment

Abstract

The utility model relates to the technical field of water treatment equipment, and discloses a waterway board and water purification equipment, which comprise a fixed plate and a waterway pipeline. A water inlet and a waste water port are formed in the fixed plate; the waterway pipeline is arranged on the fixing plate and comprises a pure water pipeline and a backflow pipeline, the pure water pipeline comprises a pure water inlet, the backflow pipeline comprises a backflow inlet and a backflow outlet, and the pure water pipeline is communicated with the backflow pipeline. And pure water can be guided into the backflow pipeline, so that the pure water enters the filter element through the backflow pipeline, and the filter element is washed and cleaned. The flowing of the pure water can take away dirt, sediments and impurities on the filter element, and the dirt and the impurities are discharged through the wastewater port, so that the filtering effect of the filter element is recovered.

Description

Technical Field

[0001] The utility model relates to the field of water purification equipment, in particular to a waterway plate and water purification equipment. Background Art

[0002] In water purification equipment, the waterway plate plays the role of distributing and guiding water flow. It is usually located inside the water purification equipment, connected to the filter element and other water purification components such as the heating tank and booster pump, and is used to guide the water flow entering the waterway plate to the correct channel.

[0003] Currently, only three holes are usually set on the waterway plate: a water inlet hole is used to connect the filter element to guide water flow into the filter element for filtration, a pure water inlet is used to guide the pure water in the filter element to the external water outlet for use, and a waste water outlet is used to discharge the waste water in the filter element. However, after the filter element has been used for a long time, dirt and impurities are likely to remain in the filter element, affecting the filtering effect of the filter element. Utility Model Content

[0004] The embodiment of the utility model aims to provide a water channel plate and a water purification device to solve the technical problem in the prior art that a pipeline and a filter element need to be separately provided to connect and flush the filter element.

[0005] The utility model embodiment solves its technical problems by adopting the following technical solutions:

[0006] Provided is a waterway plate, applied to water purification equipment, comprising:

[0007] A fixed plate, wherein a water inlet and a wastewater outlet are provided on the fixed plate;

[0008] A water pipeline, wherein the water pipeline is arranged on the fixed plate, the water pipeline comprises a pure water pipeline and a return pipeline, the pure water pipeline comprises a pure water inlet, the return pipeline comprises a return inlet and a return outlet, wherein the pure water pipeline is connected to the return pipeline.

[0009] In some embodiments, the pure water pipeline includes a first flow channel and a second flow channel, the first flow channel is interconnected with the pure water inlet, the second flow channel is interconnected with the second flow channel through a first valve, and the second flow channel is used to connect to the water outlet mechanism of the water purification equipment.

[0010] In some embodiments, the pure water pipeline further includes a third flow channel, the third flow channel is interconnected with the pure water inlet, and the third flow channel is interconnected with the reflux pipeline.

[0011] In some embodiments, a second valve is disposed on the third flow channel, one end of the second valve is connected to the third flow channel, and the other end of the second valve is connected to a return pipe.

[0012] In some embodiments, the reflux pipe includes a fourth flow channel and a fifth flow channel, the fourth flow channel and the reflux outlet are interconnected, the fifth flow channel and the fourth flow channel are interconnected, wherein the fifth flow channel is connected to a boosting mechanism for connecting to a water purification device.

[0013] In some embodiments, the third flow channel is interconnected with the fifth flow channel through the second valve, and the fourth flow channel is interconnected with the fifth flow channel through a reflux valve.

[0014] In some embodiments, the reflux pipeline further includes a sixth flow channel, one end of which is connected to the reflux inlet, and the other end of which is used to connect to a boosting mechanism of a water purification device.

[0015] In some embodiments, the sixth flow channel and the fifth flow channel are isolated from each other.

[0016] In some embodiments, the pure water pipeline also includes a seventh flow channel, one end of the seventh flow channel is interconnected with the pure water inlet, and the other end of the seventh flow channel is interconnected with the heating mechanism of the water purification equipment, wherein the heating mechanism is connected to the water outlet mechanism.

[0017] On the other hand, a water purification device is also provided, comprising the waterway plate described above: and

[0018] A filter element is interconnected with the water inlet, the wastewater outlet, the pure water inlet, the reflux inlet and the reflux outlet respectively.

[0019] Compared with the prior art, in the water purification equipment and waterway plate provided in the embodiment of the utility model, a reflux pipe is provided on the waterway pipe, and a reflux inlet and a reflux outlet are provided on the reflux pipe, the reflux pipe is connected to the filter element through the reflux outlet and the reflux inlet, and the reflux pipe is also connected to the pure water pipe, and the pure water in the pure water pipe can be diverted to the reflux pipe. Through such an arrangement, pure water can be introduced into the reflux pipe, and then enter the filter element through the reflux pipe to rinse and clean the filter element. The flow of pure water will take away the dirt, sediment and impurities on the filter element, and discharge the dirt and impurities through the wastewater outlet, thereby restoring the filtering effect of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 It is a structural schematic diagram of a waterway plate provided in one embodiment of the utility model;

[0022] Figure 2 It is a rear view of a waterway plate provided in one embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a water pipeline provided by one embodiment of the utility model;

[0024] Figure 4 yes Figure 3 A schematic diagram of the structure from another angle;

[0025] Figure 5 It is a structural schematic diagram of a water purification device provided by one embodiment of the utility model;

[0026] Figure 6 It is a schematic diagram of the assembly of the filter element and the waterway plate provided in one embodiment of the utility model;

[0027] Figure 7 yes Figure 6 Explosion diagram in .

[0028] Reference numerals:

[0029] 100, waterway plate; 10, fixed plate; 11, water inlet; 12, wastewater outlet; 20, waterway pipe; 21, pure water pipe; 211, pure water inlet; 212, first flow channel; 213, second flow channel; 214, first valve; 215, third flow channel; 216, second valve; 217, seventh flow channel; 22, reflux pipe; 221, reflux inlet; 222, reflux outlet; 223, fourth flow channel; 224, fifth flow channel; 225, sixth flow channel; 226, reflux valve; 300, water purification equipment; 30, filter element. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connecting" another element, it can be directly on another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] In the embodiment of the utility model, the water purification device can guide the water flow into the filter element for filtration through the waterway plate, and output the filtered pure water through the waterway plate.

[0033] Combine the following Figures 1 to 7 , the waterway plate and water purification equipment provided in the embodiments of the present application are described in detail through specific examples.

[0034] Please also read Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a waterway plate provided in one embodiment of the utility model. Figure 2 It is a rear view of a waterway plate provided in one embodiment of the present invention. The waterway plate 100 provided in one embodiment of the present invention is applied to a water purification device 200. The waterway plate 100 includes a fixed plate 10 and a waterway pipe 20. The fixed plate 10 is provided with a water inlet 11 and a wastewater outlet 12; the waterway pipe 20 is arranged on the fixed plate 10, the waterway plate 100 can be connected to the filter element 30, and the water inlet 11 of the waterway plate 100 can be connected to an external water source, so that the water flow can enter the filter element 30 through the water inlet 11 on the fixed plate 10, and be filtered into pure water and wastewater by the filter element 30. Among them, the wastewater outlet 12 is connected to the outside world, and the wastewater filtered by the water flow by the filter element 30 can be discharged from the water purification device 300 through the wastewater outlet 12. The water pipeline 20 includes a pure water pipeline 21 and a reflux pipeline 22 . The pure water pipeline 21 includes a pure water inlet 211 , and the reflux pipeline 22 includes a reflux inlet 221 and a reflux outlet 222 . The pure water pipeline 21 is connected to the reflux pipeline 22 .

[0035] It should be noted that the water pipe 20 is arranged on the fixed plate 10 and is interconnected with the filter element 30 through the fixed plate 10. The water pipe 20 includes a pure water pipe 21 and a reflux pipe 22. A pure water inlet 211 is provided on the pure water pipe 21, and the pure water inlet 211 can be interconnected with the filter element 30, so that the pure water obtained by filtering the filter element 30 can enter the pure water pipe 21 through the pure water inlet 211 and flow in the pure water pipe 21. In the water purification device 300, the pure water pipe 21 is interconnected with the external water outlet mechanism, so that the pure water can flow to the water outlet mechanism through the pure water inlet 211, and the pure water can be exported through the water outlet mechanism for use.

[0036] In this embodiment, a reflux pipe 22 is provided on the water pipe 20, and a reflux inlet 221 and a reflux outlet 222 are provided on the reflux pipe 22. The reflux pipe 22 is connected to the filter element 30 through the reflux outlet 222 and the reflux inlet 221, and the reflux pipe 22 is also connected to the pure water pipe 21, and the pure water in the pure water pipe 21 can be diverted to the reflux pipe 22. Through such a setting, pure water can be introduced into the reflux pipe 22, and then enter the filter element 30 through the reflux pipe 22 to rinse and clean the filter element 30. The flow of pure water will take away the dirt, sediment and impurities on the filter element 30, and discharge the dirt and impurities through the wastewater port 12, thereby restoring the filtering effect of the filter element 30.

[0037] It should be noted that the return pipe 22 and the pure water pipe 21 can be integrated to form the water pipe 20, so that the water pipe 20 can be manufactured according to the pre-determined pipe distribution and requirements, and there is no need to separately make molds and process the pure water pipe 21 and the return pipe 22. Through such a setting, on the one hand, it can improve production efficiency and reduce production costs; and on the other hand, the water pipe 20 is integrally formed, and there is no need to splice the pure water pipe 21 and the return pipe 22 to form the water pipe 20, which strengthens the structural strength of the water pipe 20 and reduces the number of pipe splicing steps.

[0038] And, in some specific examples, when the fixing plate 10 and the waterway pipe 20 are connected to each other to form the waterway plate 100, through holes corresponding to the pure water inlet 211, the reflux inlet 221, and the reflux outlet 222 may be opened on the fixing plate 10. The pure water inlet 211, the reflux inlet 221, and the reflux outlet 222 may be penetrated through the through holes on the fixing plate 10 corresponding thereto, so that the pure water pipe 21 and the reflux pipe 22 can be connected to the filter element 30.

[0039] The fixing plate 10 and the water pipe 20 may be integrally formed, or the fixing plate 10 and the water pipe 20 may be connected to each other via a fixing member (eg, threaded connection, clamping connection). The connection method between the fixing plate 10 and the water pipe 20 is not limited here.

[0040] Please also read Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the structure of a water pipeline provided by one embodiment of the utility model. Figure 4 yes Figure 3In some embodiments, the pure water pipeline 21 includes a first flow channel 212 and a second flow channel 213, the first flow channel 212 is interconnected with the pure water inlet 211, the second flow channel 213 is interconnected with the second flow channel 213 through a first valve 214, and the second flow channel 213 is used to connect to the water outlet mechanism of the water purification device 300.

[0041] The first flow channel 212 and the second flow channel 213 are interconnected through the first valve 214, and the pure water obtained by filtration in the filter element 30 can enter the first flow channel 212 through the pure water inlet 211, and then flow in the first flow channel 212 to the second flow channel 213. The second flow channel 213 is interconnected with the water outlet mechanism of the water purification device 300. After the pure water flows into the second flow channel 213, the pure water can enter the water outlet device, so that the user can obtain the pure water for use.

[0042] Furthermore, the first flow channel 212 and the second flow channel 213 are connected through the first valve 214, and the water flows in the first flow channel 212 into the second flow channel 213 through the first valve 214. The amount of pure water entering the second flow channel 213 from the first flow channel 212 can be controlled by adjusting the opening of the first valve 214. This arrangement can adapt to different usage conditions of the pure water pipeline 21. For example, when the water pressure in the first flow channel 212 is too high, or the water output of the water outlet mechanism is too low, the opening of the first valve 214 can be increased to increase the amount of pure water flowing from the first flow channel 212 to the second flow channel 213, thereby reducing the water pressure in the first flow channel 212 or increasing the water output of the water outlet mechanism; when the water pressure in the first flow channel 212 is too low, or the water output of the water outlet mechanism is too high, the opening of the first valve 214 can be reduced to reduce the amount of pure water flowing from the first flow channel 212 to the second flow channel 213, thereby increasing the water pressure in the first flow channel 212 or reducing the water output of the water outlet mechanism.

[0043] In some embodiments, the pure water pipeline 21 further includes a third flow channel 215 , the third flow channel 215 is interconnected with the pure water inlet 211 , and the third flow channel 215 is interconnected with the reflux pipeline 22 .

[0044] It should be noted that part of the pure water in the filter element 30 can enter the third flow channel 215 through the pure water inlet 211 and flow in the third flow channel 215. The third flow channel 215 is connected with the reflux pipe 22, and the pure water can enter the reflux pipe 22 through the third flow channel 215, and then enter the filter element 30 again through the reflux inlet 221 of the reflux pipe 22, and the filter element is rinsed and cleaned, so as to achieve the purpose of zero sinking.

[0045] In some embodiments, a second valve 216 is disposed on the third flow channel 215 , and one end of the second valve 216 is connected to the third flow channel 215 , and the other end of the second valve 216 is connected to the reflux pipe 22 .

[0046] The third flow channel 215 is provided with a second valve 216, one end of the second valve 216 is connected to the third flow channel 215, and the other end is connected to the return pipe 22, and the pure water in the third flow channel 215 can enter the return pipe 22 through the second valve 216. In addition, the circulation of pure water between the third flow channel 215 and the return pipe 22 can be controlled by controlling the switch of the second valve 216. When the filter element 30 needs to be rinsed and cleaned, the second valve 216 is opened, and the pure water in the third flow channel 215 flows back to the return pipe 22, and enters the filter element 30 through the return pipe 22 to rinse and clean the filter element 30; when the filter element 30 does not need to be rinsed and cleaned, the second valve 216 is closed, and the pure water in the third flow channel 215 cannot flow back to the return pipe 22.

[0047] In some more specific examples, the amount of pure water entering the return pipe 22 from the third flow channel 215 can be controlled by controlling the opening of the second valve 216, so as to adapt to the degree of flushing of the filter element 30. For example, when the filter element 30 needs to be flushed with a large flow rate, the opening of the second valve 216 can be appropriately increased to increase the amount of pure water entering the return pipe 22; when the filter element 30 needs to be flushed with a small flow rate, the opening of the second valve 216 can be appropriately reduced to reduce the amount of pure water entering the return pipe 22.

[0048] In addition, the second valve 216 can be a one-way valve, and the outlet of the one-way valve is arranged toward the return pipe 22. The one-way valve allows the fluid to flow freely in one direction, while preventing the flow of the fluid in the opposite direction. Among them, the one-way valve includes a valve body, a valve cover and a valve disc. The valve body is the main part of the one-way valve, which is usually tubular or disc-shaped. One end of the valve body is connected to the third flow channel 215, and the other end is connected to the return pipe 22. The valve cover is a part fixed to the valve body, which plays a sealing role to ensure the normal operation of the one-way valve. The valve disc is movably arranged in the valve body, and the opening and closing of the one-way valve can be controlled by the pressure difference or the action of the spring. Among them, the function of the one-way valve is to control the flow direction of the water flow between the third flow channel 215 and the return pipe 22, and prevent the water flow in the return pipe 22 from flowing back to the third flow channel 215. When the water flow applies sufficient pressure in the flow direction of the one-way valve, the valve disc will automatically open to allow the water flow to pass. When the water flow applies pressure in the opposite direction, the valve flap will be closed, thereby preventing the water flow from flowing back. In this embodiment, the opening of the one-way valve is arranged toward the return pipe 22, so that pure water can flow into the return channel through the third flow channel 215, but cannot flow into the third flow channel 215 through the return channel.

[0049] In some embodiments, the return pipe 22 includes a fourth flow channel 223 and a fifth flow channel 224, the fourth flow channel 223 and the return outlet 222 are interconnected, the fifth flow channel 224 and the fourth flow channel 223 are interconnected, wherein the fifth flow channel 224 is connected to a boosting mechanism for connecting to the water purification equipment 300.

[0050] The fourth flow channel 223 is connected to the reflux outlet 222. A portion of the pure water obtained by filtering the water flow of the filter element 30 can enter the pure water pipeline 21 through the pure water outlet, and another portion can enter the fourth flow channel 223 through the reflux outlet 222. The pure water entering the fourth flow channel 223 through the reflux outlet 222 can flow to the fifth flow channel 224, and enter the boosting mechanism of the water purification device 300 through the fifth flow channel 224, and enter the filter element 30 again after being boosted and pressurized.

[0051] It should be noted that the external boosting mechanism can boost the water flow from the fifth flow channel 224, thereby providing sufficient water pressure to enhance the cleaning effect on the filter element surface. This helps to effectively remove dirt, sediment and impurities on the filter element, improve the cleaning effect of the filter element and restore the filtering performance of the filter element.

[0052] In some embodiments, the third flow channel 215 is interconnected with the fifth flow channel 224 through the second valve 216 , and the fourth flow channel 223 is interconnected with the fifth flow channel 224 through the return valve 226 .

[0053] The third flow channel 215 is connected to the fifth flow channel 224 through the second valve 216. One end of the second valve 216 is connected to the third flow channel 215, and the other end is connected to the fifth flow channel 224. The pure water in the third flow channel 215 can enter the fifth flow channel 224 through the second valve 216, and then enter the external boosting mechanism through the fifth flow channel 224. In addition, the flow of pure water between the third flow channel 215 and the fifth flow channel 224 can be controlled by controlling the switch of the second valve 216. The fourth flow channel 223 is connected to the fifth flow channel 224 through the reflux valve 226. The reflux valve 226 can be a one-way valve so that the flow direction of the pure water is from the fourth flow channel 223 to the fifth flow channel 224. Prevent the water in the fifth flow channel 224 from flowing back to the fourth flow channel 223 and then back to the filter element 30.

[0054] In some embodiments, the reflux pipe 22 further includes a sixth flow channel 225 , one end of which is connected to the reflux inlet 221 , and the other end of which is used to connect to a boosting mechanism of the water purification device 300 .

[0055] One end of the sixth flow channel 225 is interconnected with the boosting mechanism of the water purification device 300. When the water in the fifth flow channel 224 enters the boosting mechanism and is boosted in the boosting mechanism, the boosting mechanism can guide the boosted water into the sixth flow channel 225. The other end of the sixth flow channel 225 is connected to the filter element 30, and the water after the boosting treatment can enter the filter element 30, ensuring that the water can smoothly rinse and clean the filter element 30.

[0056] In some embodiments, the sixth flow channel 225 is isolated from the fifth flow channel 224. The sixth flow channel 225 and the fifth flow channel 224 are isolated from each other, and the sixth flow channel 225 is used to connect the reflux outlet 222, and the fifth flow channel 224 is connected to the reflux inlet 221 through the fourth flow channel 223. By isolating the fifth flow channel 224 and the fourth flow channel 223 from each other, it is possible to prevent the water from flowing back in the fourth flow channel 223 and the fifth flow channel 224. In addition, the fifth flow channel 224 is interconnected with the boosting mechanism, and the sixth flow channel 225 is also interconnected with the boosting mechanism, so that the water in the fifth flow channel 224 that needs to flow back into the filter element 30 can enter the sixth flow channel 225 through the boosting mechanism. Through such a setting, the water can enter the filter element 30 and be filtered while the fifth flow channel 224 and the sixth flow channel 225 are isolated from each other.

[0057] In some embodiments, the pure water pipeline 21 also includes a seventh flow channel 217, one end of the seventh flow channel 217 is interconnected with the pure water inlet 211, and the other end of the seventh flow channel 217 is interconnected with the heating mechanism of the water purification equipment 300, wherein the heating mechanism is connected to the water outlet mechanism.

[0058] The seventh flow channel 217 is interconnected with the pure water inlet 211, and the pure water obtained after the filter element 30 filters the water flow can enter the seventh flow channel 217 through the pure water inlet 211. The seventh flow channel 217 is also connected to the heating mechanism of the water purification device 300. When the user needs to use hot water, the pure water can be introduced into the heating mechanism through the seventh flow channel 217 for heating before use. Among them, the heating mechanism is also connected to the water outlet mechanism, so that the heated pure water is discharged from the water outlet mechanism.

[0059] Please also read Figure 5 , Figure 6 and Figure 7 , Figure 5 It is a structural schematic diagram of a water purification device provided by one embodiment of the utility model. Figure 6 This is a schematic diagram of the assembly of the filter element and the waterway plate provided in one embodiment of the utility model. Figure 7 yes Figure 6Schematic diagram of explosion in. Another embodiment of the utility model provides a water purification device 300, including the waterway plate 100 and the filter element 30 described above. A reflux pipe 22 is arranged on the waterway pipe 20, and a reflux inlet 221 and a reflux outlet 222 are arranged on the reflux pipe 22. The reflux pipe 22 is connected to the filter element 30 through the reflux outlet 222 and the reflux inlet 221, and the reflux pipe 22 is also connected to the pure water pipe 21, and the pure water in the pure water pipe 21 can be diverted to the reflux pipe 22. Through such a setting, pure water can be introduced into the reflux pipe 22, and then enter the filter element 30 through the reflux pipe 22, and the filter element 30 is rinsed and cleaned. The flow of pure water will take away the dirt, sediment and impurities on the filter element 30, and discharge the dirt and impurities through the wastewater outlet 12, thereby restoring the filtering effect of the filter element 30.

[0060] It should be particularly noted that the water purification equipment 300 provided in the embodiment of the utility model only shows the part related to the technical problem to be solved by the embodiment of the utility model. It can be understood that the water purification equipment 300 provided in the embodiment of the utility model also includes other structures for realizing the functions of the water purification equipment 300, including but not limited to water flow boosting mechanism, pure water heating mechanism, power supply mechanism, etc.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waterway plate (100), applied to a water purification device (300), characterized in that: include: A fixed plate (10), wherein the fixed plate (10) is provided with a water inlet (11) and a waste water outlet (12); A water pipeline (20), wherein the water pipeline (20) is arranged on the fixed plate (10), the water pipeline (20) comprises a pure water pipeline (21) and a return pipeline (22), the pure water pipeline (21) comprises a pure water inlet (211), and the return pipeline (22) comprises a return inlet (221) and a return outlet (222), wherein the pure water pipeline (21) is connected to the return pipeline (22).

2. The waterway plate (100) according to claim 1, characterized in that: The pure water pipeline (21) comprises a first flow channel (212) and a second flow channel (213); the first flow channel (212) is interconnected with the pure water inlet (211); the second flow channel (213) is interconnected with the second flow channel (213) via a first valve (214); and the second flow channel (213) is used to connect to a water outlet mechanism of the water purification device (300).

3. The waterway plate (100) according to claim 1, characterized in that: The pure water pipeline (21) further comprises a third flow channel (215), wherein the third flow channel (215) is interconnected with the pure water inlet (211), and the third flow channel (215) is interconnected with the return pipeline (22).

4. The waterway plate (100) according to claim 3, characterized in that: A second valve (216) is provided on the third flow channel (215); one end of the second valve (216) is connected to the third flow channel (215), and the other end of the second valve (216) is connected to the return pipe (22).

5. The waterway plate (100) according to claim 4, characterized in that: The return pipe (22) comprises a fourth flow channel (223) and a fifth flow channel (224); the fourth flow channel (223) and the return outlet (222) are connected to each other; the fifth flow channel (224) and the fourth flow channel (223) are connected to each other; wherein the fifth flow channel (224) is connected to a boosting mechanism for connecting to a water purification device (300).

6. The waterway plate (100) according to claim 5, characterized in that: The third flow channel (215) is interconnected with the fifth flow channel (224) via the second valve (216), and the fourth flow channel (223) is interconnected with the fifth flow channel (224) via the return valve (226).

7. The waterway plate (100) according to claim 6, characterized in that: The reflux pipeline (22) further comprises a sixth flow channel (225), one end of which is connected to the reflux inlet (221), and the other end of which is used to connect to the boosting mechanism of the water purification equipment (300).

8. The waterway plate (100) according to claim 7, characterized in that: The sixth flow channel (225) and the fifth flow channel (224) are arranged to be isolated from each other.

9. The waterway plate (100) according to claim 2, characterized in that: The pure water pipeline (21) also includes a seventh flow channel (217), one end of the seventh flow channel (217) is interconnected with the pure water inlet (211), and the other end of the seventh flow channel (217) is interconnected with the heating mechanism of the water purification equipment (300), wherein the heating mechanism is connected to the water outlet mechanism.

10. A water purification device (300), characterized in that: Comprising the waterway plate (100) according to any one of claims 1 to 9; and A filter element (30), wherein the filter element (30) is respectively interconnected with the water inlet (11), the wastewater outlet (12), the pure water inlet (211), the reflux inlet (221), and the reflux outlet (222).

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