Waterway board and water purifier

Abstract

The present invention discloses a waterway plate and a water purifier, wherein the waterway plate includes a water inlet waterway, an air inlet branch and an air-water mixing branch, wherein the water inlet waterway has a raw water interface, and a cut-off device is provided on the water inlet waterway; the water outlet end of the cut-off device is connected to the air-water mixing branch, the air outlet end of the air inlet branch is connected to the air-water mixing branch, and an air-water mixing tank is provided on the air-water mixing branch, and an outlet for mixed air water to flow out is provided on the air-water mixing tank. Since the waterway system proposed in the present application includes a water inlet waterway, an air inlet branch and an air-water mixing branch, it is possible to fill domestic water with tiny bubbles, thereby improving the washing effect of domestic water. In addition, since the cut-off device is provided on the water inlet waterway, a certain negative pressure can be generated in the front end waterway of the air-water mixing branch, so that air and water can enter the air-water mixing tank at the same time. In this way, mixed air water can be provided quickly, which is convenient for users to use.

Description

Technical Field

[0001] The invention relates to the technical field of water purifiers, and in particular to a waterway plate and a water purifier. Background Art

[0002] The water purifier uses tap water as the inlet water, and can obtain direct drinking water or domestic water through filtering with different filter elements. Direct drinking water reaches the level of pure water and can be drunk directly; domestic water is filtered through primary filtration to remove large particle impurities and residual chlorine in the water, and can be used for most daily purposes, such as washing fruits, vegetables, and oil stains. The domestic water of existing water purifiers is generally filtered through PP cotton filter elements or activated carbon filter elements, or filtered through both at the same time, or filtered through composite filter elements with the same function, so the washing effect of domestic water of existing water purifiers is very limited. Summary of the invention

[0003] The main purpose of the present invention is to provide a waterway plate, aiming to improve the washing effect of domestic water in a water purifier.

[0004] To achieve the above-mentioned purpose, the waterway plate proposed in the present invention includes: an inlet waterway, the inlet waterway has a raw water interface, and a shut-off device is provided on the inlet waterway; an air inlet branch, and an air-water mixing branch, the water outlet end of the shut-off device is connected to the air-water mixing branch, the air outlet end of the air inlet branch is connected to the air-water mixing branch, the air-water mixing branch is provided with an air-water mixing tank, and the air-water mixing tank is provided with a water outlet for the mixed air and water to flow out.

[0005] Preferably, the intercepting device comprises an interceptor, the interceptor has an intercepting hole, the intercepting hole is connected to the water inlet waterway, and the area of ​​the intercepting hole is smaller than the cross-sectional area of ​​the water inlet waterway.

[0006] Preferably, the intercepting device further comprises a pressure reducing valve, the pressure reducing valve and the interceptor are sequentially arranged along the water inlet direction, and the pressure reducing valve is detachably connected to the waterway plate.

[0007] Preferably, the waterway plate also includes a clean water branch, which is provided with a booster pump, a water inlet control valve and a reverse osmosis filter in sequence along the water flow direction; the water inlet of the gas-water mixing branch is connected between the booster pump and the water inlet control valve.

[0008] Preferably, a first one-way valve is provided on the gas-water mixing branch, the first one-way valve is located between the booster pump and the gas-water mixing tank, and the first one-way valve is unidirectionally conductive from one side of the booster pump to one side of the gas-water mixing tank.

[0009] Preferably, the waterway plate also includes a parallel branch, on which a parallel control valve is provided; the water inlet waterway is provided with a pre-filter, the water inlet of the parallel branch is connected between the pre-filter and the intercepting device, and the water outlet of the parallel branch is connected to the water inlet of the clean water branch.

[0010] Preferably, the waterway plate further comprises a reflux branch, a water inlet of the reflux branch is connected to the pure water end of the reverse osmosis filter, and a water outlet of the reflux branch is connected to the water inlet of the clean water branch.

[0011] Preferably, the waterway plate is provided with a plurality of first interfaces for connecting the water inlet waterway, the air inlet branch and the air-water mixing branch; the waterway plate is also provided with redundant second interfaces, and the second interfaces are provided with detachable plugs for sealing the second interfaces.

[0012] Preferably, the plug includes a single-head plug and a multi-head plug.

[0013] Preferably, the plug includes a plugging portion, the plugging portion is adapted to be embedded in the second interface, and a sealing ring is provided between the plugging portion and the inner peripheral wall of the second interface.

[0014] Preferably, a mounting column is provided around the periphery of the second interface, and a mounting hole is provided on the mounting column; the plug also includes a mounting plate fixedly connected to the plug part, and the mounting plate is provided with a through hole at a position corresponding to the mounting hole; the waterway plate also includes a mounting member, and the mounting member passes through the through hole and the mounting hole to fix the plug on the second interface.

[0015] Preferably, the waterway plate is integrally formed by injection molding.

[0016] The present invention also provides a water purifier, the water purifier comprises the waterway plate, the waterway plate comprises:

[0017] An inlet waterway, the inlet waterway having a raw water interface, a cut-off device being provided on the inlet waterway; an air inlet branch, and an air-water mixing branch, the water outlet end of the cut-off device being connected to the air-water mixing branch, the air outlet end of the air inlet branch being connected to the air-water mixing branch, an air-water mixing tank being provided on the air-water mixing tank, and an outlet for the mixed air and water to flow out.

[0018] The waterway plate proposed in the present invention includes a water inlet waterway, an air inlet branch and an air-water mixing branch, wherein the water inlet waterway has a raw water interface, and a cut-off device is provided on the water inlet waterway; the water outlet end of the cut-off device is connected to the air-water mixing branch, the air outlet end of the air inlet branch is connected to the air-water mixing branch, and an air-water mixing tank is provided on the air-water mixing branch, and an outlet for mixed air water to flow out is provided on the air-water mixing tank. Since the waterway system proposed in the present application includes a water inlet waterway, an air inlet branch and an air-water mixing branch, it is possible to fill the domestic water with tiny bubbles, thereby improving the washing effect of the domestic water. Specifically, the working process of the waterway system is as follows: the air inlet branch and the water inlet waterway are connected at the same time, water and air enter the air-water mixing tank and mix, and when the water mixed with gas flows out through the first faucet, the domestic water that flows out carries a large number of bubbles, thereby improving the washing effect of the domestic water. In addition, since a cut-off device is provided on the water inlet waterway, a certain negative pressure can be generated in the front waterway of the air-water mixing branch, so that air and water can enter the air-water mixing tank at the same time. Since water intake and air intake are performed simultaneously in the present application, the time for generating mixed gas water is short, so mixed gas water can be provided quickly, which is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is a rear view of an embodiment of a waterway plate of the present invention;

[0021] Figure 2 for Figure 1 Front view of the waterway plate;

[0022] Figure 3 for Figure 1 Schematic diagram of the waterway system of the waterway board;

[0023] Figure 4 for Figure 1 Structural diagram of the single-head plug;

[0024] Figure 5 for Figure 1 Schematic diagram of the structure of the double-head plug.

[0025] Description of Figure Numbers:

[0026]

[0027]

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] The present invention provides a waterway plate, which can increase microbubbles in domestic water and improve the washing effect of the domestic water.

[0033] In one embodiment of the present invention, Figures 1 to 3 As shown, the waterway plate includes a water inlet waterway 100, an air inlet branch 200 and an air-water mixing branch 300, wherein the water inlet waterway 100 has a raw water interface 140, and a cut-off device is provided on the water inlet waterway 100; the water outlet end of the cut-off device is connected to the air-water mixing branch 300, and the air outlet end of the air inlet branch 200 is connected to the air-water mixing branch 300, and an air-water mixing tank 310 is provided on the air-water mixing branch 300, and the air-water mixing tank 310 is provided with a water outlet for mixed air and water to flow out.

[0034] In this embodiment, the water outlet of the gas-water mixing tank 310 is connected to a first faucet (not shown), and the gas-mixed water flows out through the first faucet. The gas-mixed water flowing out of the first faucet is used as domestic water for washing dishes and vegetables. Since the water system proposed in this application includes an inlet waterway 100, an air inlet branch 200, and an air-water mixing branch 300, the domestic water can be filled with tiny bubbles, thereby improving the washing effect of the domestic water. Specifically, the working process of the water system is as follows: the air inlet branch 200 and the water inlet waterway 100 are connected at the same time, and water and air enter the gas-water mixing tank 310 and mix. When the water mixed with gas flows out through the first faucet, the domestic water that flows out carries a large number of bubbles, thereby improving the washing effect of the domestic water.

[0035] When the water purifier takes domestic water, it will introduce air into the air-water mixing device to mix the air and water, thereby increasing the number of microbubbles in the domestic water, with a concentration of hundreds of thousands or even millions. When using domestic water with microbubbles for cleaning, due to the microphysical properties of the microbubbles and the surface tension, the impurities can be broken, making it easier for the impurities to fall off the surface of the object. In addition, due to the collision, rupture and fusion of microbubbles, the surface of the object is impacted, and the impurities fall off and are washed away or float to the water surface with the bubbles, thereby achieving a more thorough cleaning effect.

[0036] In addition, since the intercepting device is provided on the water inlet waterway 100, a certain negative pressure can be generated in the front waterway of the air-water mixing branch 300, so that air and water can simultaneously enter the air-water mixing tank 310. Since water intake and air intake are performed simultaneously in the present application, the time for generating mixed gas water is short, so mixed gas water can be provided quickly, which is convenient for users to use.

[0037] Please refer to Figure 1 The waterway board is provided with the raw water interface 140, the water outlet 150 (including the drinking water outlet, the concentrated water outlet and the domestic water outlet), the gas-water mixing tank inlet and outlet 160 (one way for gas intake, one way for water intake and one way for gas-mixed water outflow), the pre-filter inlet and outlet 170, the post-filter inlet and outlet 180 and the reverse osmosis filter inlet and outlet 190. In the present application, the gas-water mixing tank 310, the pre-filter 130, the post-filter 440 and the reverse osmosis filter 430 can be detachably installed on the waterway board to form the waterway system.

[0038] For further information, please refer to Figure 3Now, the structure of the intercepting device is described. In this embodiment, the intercepting device includes an interceptor 110, and the interceptor 110 has an intercepting hole. The intercepting hole is connected to the water inlet channel 100, and the area of ​​the intercepting hole is smaller than the cross-sectional area of ​​the water inlet channel 100. Specifically, in this embodiment, the intercepting hole is a circular hole, and the aperture of the intercepting hole ranges from 1.8 mm to 2.0 mm, but the design of the present application is not limited thereto. In other embodiments, the intercepting hole can also be a square hole, an elliptical hole, etc.

[0039] Since the area of ​​the intercepting hole is smaller than the cross-sectional area of ​​the water inlet channel 100, the flow rate of water flowing through the intercepting hole is reduced, so that negative pressure can be formed at the front end of the air-water mixing branch 300, so that air and water can enter the air-water mixing tank 310 at the same time.

[0040] For further information, please refer to Figure 3 In order to improve the applicability of the intercepting device, in one embodiment of the present application, the intercepting device further includes a pressure reducing valve 120, which is sequentially arranged with the interceptor 110 along the water inlet direction, and the pressure reducing valve 120 is detachably connected to the waterway plate. Since the pressure reducing valve 120 is arranged at the front end of the interceptor 110, the pressure reducing valve 120 can reduce the pressure flowing into the intercepting hole. Therefore, even if the initial pressure of the raw water is different, after passing through the pressure reducing valve 120, the raw water pressure can be reduced to meet the requirements of the interceptor 110, thereby improving the applicability of the intercepting device to different raw water pressures.

[0041] Further, please refer to Figure 3 In order to promote the mixing of water and gas, in one embodiment of the present application, a booster pump 410 is further provided at the front end of the gas-water mixing branch 300. Specifically, the waterway plate further includes a clean water branch 400, and the clean water branch 400 is provided with a booster pump 410, a water inlet control valve 420 and a reverse osmosis filter 430 in sequence along the water flow direction; the water inlet of the gas-water mixing branch 300 is connected between the booster pump 410 and the water inlet control valve 420. In this way, the gas-water mixing branch 300 can utilize the booster pump 410 of the clean water branch 400, thereby promoting the mixing of water and gas.

[0042] Specifically, the reverse osmosis filter 430 has an inlet end, a pure water end and a waste water end. The inlet end is connected to the water inlet control valve 420, the pure water end is connected to the second faucet for drinking water, and the waste water end is connected to a drainage branch. The drainage branch has a drainage hole, and a flushing control valve is provided on the drainage branch. The outlet of the gas-water mixing branch 300 is connected to the first faucet, and the first faucet is used to flow out domestic water, which is mixed gas water. In this way, the washing effect can be improved.

[0043] However, the design of the present application is not limited thereto. In other embodiments, the gas-water mixing branch 300 may also be provided with a booster pump 410 separately.

[0044] Furthermore, if Figure 3 As shown, in order to prevent gas or water from flowing back to the booster pump 410 or the water inlet control valve 420, in one embodiment of the present application, a first one-way valve 320 is provided on the gas-water mixing branch 300, and the first one-way valve 320 is located between the booster pump 410 and the gas-water mixing tank 310, and the first one-way valve 320 is unidirectionally conducted from one side of the booster pump 410 to one side of the gas-water mixing tank 310. The one-way valve 1 is used to prevent gas or water from flowing back to the booster pump 410 or the water inlet control valve 420 when the tap is turned off for domestic water, so as to maintain the pressure in the gas-water mixing tank 310.

[0045] For further information, please refer to Figure 3 In order to increase the water intake of the clean water branch 400, in one embodiment of the present application, the waterway plate also includes a parallel branch 500, and a parallel control valve 510 is provided on the parallel branch 500; a pre-filter is provided on the water inlet waterway 100, and the water inlet of the parallel branch 500 is connected between the pre-filter and the pressure reducing valve 120, and the water outlet of the parallel branch 500 is connected to the water inlet of the clean water branch 400.

[0046] Specifically, the pure water port of the reverse osmosis filter 430 is connected to the second one-way valve, the post-filter and the second faucet in sequence, and the second faucet is used to supply drinking water. When the water purification branch 400 is working, the parallel control valve 510 and the water inlet control valve 420 are opened, so that the raw water flows to the booster pump 410 through the parallel control valve 510, and flows into the reverse osmosis filter 430 through the booster pump 410, thereby increasing the pure water flow rate. The function of the second one-way valve is to prevent the pure water from flowing back to the reverse osmosis filter 430, and to maintain the pressure in the pipeline when the second faucet is closed.

[0047] Further, please refer to Figure 3 In order to prevent the water in the clean water branch 400 from being polluted, in one embodiment of the present application, the waterway plate further includes a return branch 600, the water inlet of the return branch 600 is connected to the pure water end of the reverse osmosis filter 430, and the water outlet of the return branch 600 is connected to the water inlet of the clean water branch 400. In this way, when the second faucet is closed for a long time, the water in the clean water branch 400 can flow back to the clean water branch 400 through the return branch 600, and then be purified again through the reverse osmosis filter element, so the cleanliness of the drinking water can be guaranteed.

[0048] Specifically, the water inlet of the reflux branch 600 is connected to the pure water inlet of the reverse osmosis filter 430, and the water outlet of the reflux branch 600 is connected to the water inlet of the boosting pump 410. A reflux control valve is provided on the reflux branch 600, and a third one-way valve is provided between the reflux control valve and the reverse osmosis filter 430. The third one-way valve is unidirectionally conductive from the pure water inlet side of the reverse osmosis filter 430 to the reflux control valve side.

[0049] like Figure 3 As shown, the water system of the waterway board is now described in detail. After the raw water (tap water) enters from the raw water inlet, it is first filtered by the pre-filter 130 (PAC composite filter element), and then divided into two paths, one path passes through the pressure reducing valve 120, the pressure reducing parameter is 0.2MPa, and then passes through a interceptor 110, and the other path passes through the parallel control valve 510 and then merges. The merged water enters the booster pump 410. After the boosting effect of the booster pump 410, the water is divided into two paths again. One path passes through the first check valve 320 and the gas-water mixing tank 310 and then is discharged from the first faucet (domestic water), and the other path passes through the water inlet control valve 420 and then enters the reverse osmosis filter 430. The reverse osmosis filter 430 separates the water into concentrated water and pure water, and the concentrated water passes through the flushing control valve and is discharged from the drain port. The pure water from the reverse osmosis filter 430 is divided into two paths, one of which passes through the second one-way valve and the post-filter 440 (carbon rod filter element) and is discharged from the second faucet (drinking water) outlet. The air inlet can absorb gas, which passes through the air intake control valve and the fourth one-way valve and merges with the pure water from the reverse osmosis filter 430, and then flows back through the reflux control valve, the interceptor 110, and the parallel control valve 510, and then enters the booster pump 410. The second high-pressure switch is connected to the pipeline between the post-filter 440 and the drinking water outlet, and the first high-pressure switch is connected to the pipeline between the gas-water mixing tank 310 and the domestic water outlet.

[0050] The function of the air intake control valve is to prevent water from flowing out of the gas inlet, and the function of the fourth one-way valve is to allow gas to enter from the gas inlet to reach the booster pump 410, while preventing water or gas from flowing out from the water path to the gas inlet.

[0051] When the first faucet is turned on, the first high-pressure switch installed behind the gas-water mixing tank 310 will detect that the pressure of the water in this circuit is reduced. At this time, the control system will start the booster pump 410 to continuously perform the boosting work. At the same time, the parallel control valve 510 and the water inlet control valve 420 on the water circuit will be closed, and the air inlet control valve will be opened. At this time, the water can only pass through the pre-filter 130, the pressure reducing valve 120 and the interceptor 110 to reach the booster pump 410. Due to the interception of the interceptor 110 and the suction effect of the booster pump 410, a certain negative pressure will be generated in the front water circuit of the booster pump 410. At this time, the gas (air) will enter the water circuit through the air inlet control valve, and after passing through the one-way valve, it will merge with the water flow passing through the interceptor 110. The booster pump 410 will pressurize the merged gas and water together and enter the gas-water mixing tank 310. The gas and water are fully mixed and dissolved in the gas-water mixing tank 310 due to the effect of high pressure (0.3-0.5MPa). Finally, the pressure is released at the water outlet of the first faucet, and the gas no longer dissolves in the water but forms many tiny bubbles in the water, thereby releasing micro-bubble water.

[0052] When the user opens the second faucet and closes the first faucet, the second high-pressure switch installed on the waterway of the post-filter 440 will detect that the pressure of the water in this way has decreased. At this time, the control system will start the booster pump 410 to continuously increase the pressure. At the same time, the parallel control valve 510 and the water inlet control valve 420 on the waterway will be opened, and the air inlet control valve will be closed. At this time, the water can pass through the pre-filter 130 and then through the parallel control valve 510 to reach the booster pump 410. The water pressurized by the booster pump 410 enters the reverse osmosis filter 430 after passing through the water inlet control valve 420, and the reverse osmosis filter 430 separates pure water and concentrated water. The concentrated water is discharged from the drain outlet to the sewer after passing through the flushing control valve, while the pure water flows out of the faucet after passing through the post-filter 440.

[0053] For further information, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 In order to improve the applicability of the waterway board, in one embodiment of the present application, the waterway board is provided with a second interface 20, and the second interface 20 is provided with a plug 30 that can detachably seal the second interface 20. Specifically, the waterway board is provided with a plurality of first interfaces 10 for connecting the water inlet waterway 100, the air inlet branch 200 and the gas-water mixing branch 300, and the waterway board is also provided with redundant second interfaces 20, and the second interface 20 is provided with a plug 30 that can detachably seal the second interface 20. The first interface 10 includes the raw water interface 140, the water outlet 150 (including the drinking water outlet, the concentrated water outlet and the domestic water outlet), the gas-water mixing tank inlet and outlet 160, the pre-filter inlet and outlet 170, the post-filter inlet and outlet 180 and the reverse osmosis filter inlet and outlet 190.

[0054] Since the waterway plate is provided with an extra second interface 20, the second interface 20 is provided with a plug 30 that can detachably seal the second interface 20. Therefore, when the plug 30 is removed, the second interface 20 is exposed, so that newly added control valves, filters, etc. can be connected, thereby improving the applicability of the waterway plate.

[0055] For further information, please refer to Figure 4 and Figure 5 Now the structure of the plug 30 is described. In this embodiment, the plug 30 includes a single-head plug and a multi-head plug. The single-head plug can block one second interface 20, and the multi-head plug can be a double-head plug, a triple-head plug, etc. The multi-head plug can block at least two second interfaces 20 at a time.

[0056] As a preferred method, in order to improve the sealing performance of the plug 30, in one embodiment of the present application, the plug 30 includes a plugging portion 31, and the plugging portion 31 is adapted to be embedded in the second interface 20, and a sealing ring 40 is provided between the plugging portion 31 and the inner circumferential wall of the second interface 20, so that the sealing performance of the plug 30 and the second interface 20 can be improved.

[0057] Preferably, an annular groove 31a is opened on the peripheral side wall of the plugging part 31, and the sealing ring 40 is embedded in the annular groove 31a, and the sealing ring 40 protrudes from the annular groove 31a. In this way, the sealing ring 40 can be firmly fixed and the sealing performance of the sealing ring 40 can be improved.

[0058] Furthermore, if Figure 2 As shown, the installation structure of the plug 30 and the second interface 20 is now described in detail. In this embodiment, the second interface 20 is provided with a mounting column 50 around its periphery, and the mounting column 50 is provided with a mounting hole; the plug 30 also includes a mounting plate 32 fixedly connected to the plug part 31, and the mounting plate 32 is provided with a through hole 32a at a position corresponding to the mounting hole, and the waterway plate also includes a mounting member, and the mounting member penetrates the through hole 32a and the mounting hole to fix the plug 30 on the second interface 20.

[0059] Specifically, in this embodiment, the mounting member is a screw, and an internal thread is provided in the mounting hole. The mounting plate 32 can be firmly fixed on the mounting column 50 by the screw, so that the plug 30 can be firmly connected to the waterway plate, thereby ensuring that the plug part 31 and the second interface 20 are well sealed.

[0060] Considering that the existing water purifiers use a welding waterway plate process in order to reduce the number of pipe joints and pipe fittings, the welded waterway plate is generally divided into two upper and lower plates, which can be called the main body and the cover plate. Both the main body and the cover plate are first obtained by injection molding through the injection molding process, and then the two plates are melted together through the hot plate welding process. Since mirror-image ribs are arranged on the main body and the cover plate respectively, these ribs will form the required pipeline flow channels after melting together, thus forming a pipeline system of the welded waterway plate. The disadvantage of this welded waterway plate is that more molds need to be made, and the welding melting process is difficult to control, the melting degree of the rubber at each point is inconsistent, and the strength of the welded waterway plate obtained is different. More importantly, the internal welding partition that only relies on the ribs is prone to leakage due to inadequate welding or water leakage between the two waterways.

[0061] In order to solve the above problems, in one embodiment of the present application, the waterway plate is injection molded in one piece, so that the waterway plate does not have too many joints, which eliminates the problems of water leakage due to welded waterway plates and improper welding, and the yield rate is as high as 98%.

[0062] The present invention also proposes a water purifier (not shown), which includes the waterway plate. The specific structure of the waterway plate refers to the above-mentioned embodiment. Since the water purifier proposed in this application adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A waterway plate, characterized in that: include: A water inlet waterway, wherein the water inlet waterway has a raw water interface and a flow interception device is provided on the water inlet waterway; Intake branch, and An air-water mixing branch, the water outlet end of the intercepting device is connected to the air-water mixing branch, the air outlet end of the air inlet branch is connected to the air-water mixing branch, an air-water mixing tank is provided on the air-water mixing tank, and an outlet for mixed air and water to flow out is provided on the air-water mixing tank; The waterway plate is integrally formed by injection molding; The intercepting device is used to generate negative pressure in the front end water channel of the air-water mixing branch so that air and water enter the air-water mixing tank at the same time; The waterway plate is provided with a plurality of first interfaces for connecting the water inlet waterway, the air inlet branch and the air-water mixing branch; the waterway plate is also provided with redundant second interfaces, and the second interfaces are provided with a plug that can be detachably sealed. The plug includes a plugging portion, the plugging portion is adapted to be embedded in the second interface, and a sealing ring is provided between the plugging portion and the inner peripheral wall of the second interface; It also includes an intake control valve and a fourth one-way valve, wherein the fourth one-way valve is used to prevent gas or water from flowing out to the gas inlet of the intake branch, and the intake control valve is used to prevent water from flowing out from the gas inlet of the intake branch.

2. The waterway plate according to claim 1, characterized in that: The intercepting device comprises an interceptor, wherein the interceptor has an intercepting hole, the intercepting hole is communicated with the water inlet waterway, and the area of ​​the intercepting hole is smaller than the cross-sectional area of ​​the water inlet waterway.

3. The waterway plate according to claim 2, characterized in that: The intercepting device further comprises a pressure reducing valve, which is arranged in sequence with the interceptor along the water inlet direction, and the pressure reducing valve is detachably connected to the waterway plate.

4. The waterway plate according to claim 1, characterized in that: The waterway plate also includes a clean water branch, which is provided with a booster pump, a water inlet control valve and a reverse osmosis filter in sequence along the water flow direction; The water inlet of the air-water mixing branch is connected between the booster pump and the water inlet control valve.

5. The waterway plate according to claim 4, characterized in that: The air-water mixing branch is provided with a first one-way valve, which is located between the booster pump and the air-water mixing tank, and is unidirectionally conductive from one side of the booster pump to the other side of the air-water mixing tank.

6. The waterway plate according to claim 4, characterized in that: The waterway plate also includes a parallel branch, on which a parallel control valve is provided; the water inlet waterway is provided with a pre-filter, the water inlet of the parallel branch is connected between the pre-filter and the intercepting device, and the water outlet of the parallel branch is connected to the water inlet of the clean water branch.

7. The waterway plate according to claim 4, characterized in that: The waterway plate also includes a reflux branch, on which a reflux solenoid valve is provided, a water inlet of the reflux branch is connected to the pure water end of the reverse osmosis filter, and a water outlet of the reflux branch is connected to the water inlet of the clean water branch.

8. The waterway plate according to claim 1, characterized in that: The plug includes a single-head plug and a multi-head plug.

9. The waterway plate according to claim 1, characterized in that: A mounting column is provided at the periphery of the second interface, and a mounting hole is provided on the mounting column; The plug also includes a mounting plate fixedly connected to the plug part, the mounting plate is provided with a through hole at a position corresponding to the mounting hole, and the waterway plate also includes a mounting member, the mounting member passes through the through hole and the mounting hole to fix the plug on the second interface.

10. A water purifier, characterized in that: The water purifier comprises the waterway plate as described in any one of claims 1 to 9.

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