Waterway system and water purification equipment

Abstract

The utility model discloses a waterway system and water purification equipment, and relates to the technical field of water purification, the waterway system is provided with a gas inlet end, a water inlet end and a water outlet end, the waterway system comprises a gas inlet valve, a jet device, a booster pump and a gas mixing tank, the gas inlet end and the water inlet end are both communicated with the jet device, the jet device is communicated with the booster pump, and the booster pump is communicated with the water outlet end; the booster pump comprises a base, a diaphragm assembly and a pump cover. The diaphragm assembly is arranged on the base; the pump cover is connected with the base and provided with a water inlet and a water outlet. A low-pressure cavity and a high-pressure cavity are formed between the pump cover and the diaphragm assembly, the low-pressure cavity is communicated with the water inlet, the high-pressure cavity is communicated with the water outlet, the volume of the low-pressure cavity is V1, the volume of the high-pressure cavity is V2, and V1 / V2 is larger than or equal to 1.5 and smaller than or equal to 3. According to the booster pump, the air pumping efficiency of the booster pump can be improved, and therefore it is guaranteed that a waterway system continuously discharges microbubble water, and user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, and particularly relates to a water circuit system and a water purification device. Background Art

[0002] In the related art, a microbubble water circuit system includes a booster pump, a gas mixing tank and an outlet module. The booster pump introduces water and air into the gas mixing tank, and the air and water are mixed in the gas mixing tank to form a gas-liquid mixture, and then the gas-liquid mixture flows into the outlet module to form micro-nano bubbles. However, the volume ratio of the low-pressure chamber to the high-pressure chamber of the existing booster pump is too large, that is, the volume of the low-pressure chamber is too large, making it difficult to pump air when the booster pump is in use, with low air pumping efficiency and weak air pumping capacity, resulting in discontinuous microbubble water output from the outlet module, thus leading to a poor user experience. Summary of the Utility Model

[0003] The main object of the utility model is to propose a water circuit system and a water purification device, aiming to improve the air pumping efficiency of the booster pump, thereby ensuring continuous microbubble water output of the water circuit system and improving the user experience.

[0004] To achieve the above object, the water circuit system proposed by the utility model has an air inlet end, a water inlet end and a water outlet end. The water circuit system includes an air inlet valve, a jet pump, a booster pump and a gas mixing tank. The jet pump has a first inlet, a second inlet and a mixing outlet; one end of the air inlet valve is communicated with the air inlet end, and the other end is communicated with the first inlet, and the second inlet is communicated with the water inlet end; the booster pump includes a base, a diaphragm assembly and a pump cover. The diaphragm assembly is arranged on the base, the pump cover is connected with the base, and the pump cover is provided with a water inlet and a water outlet. The water inlet is communicated with the mixing outlet, and the water outlet is communicated with the water outlet end; the gas mixing tank is arranged on the flow path between the booster pump and the water outlet end; wherein, a spaced low-pressure chamber and high-pressure chamber are formed between the pump cover and the diaphragm assembly. The low-pressure chamber is communicated with the water inlet, the high-pressure chamber is communicated with the water outlet, the volume of the low-pressure chamber is V1, and the volume of the high-pressure chamber is V2, satisfying 1.5≤V1 / V2≤3.

[0005] In an embodiment, the water circuit system further includes a bubbler, which is arranged downstream of the gas mixing tank and communicated with the water outlet end.

[0006] In an embodiment, the water circuit system further includes a pressure regulating valve, which is arranged upstream of the jet pump and communicated with the second inlet.

[0007] In an embodiment, the water circuit system further includes a filtering component, which is arranged upstream of the pressure regulating valve for filtering the liquid; and / or,

[0008] The waterway system further includes an air filter element, which is arranged upstream of the intake valve and is used for filtering the gas.

[0009] In one embodiment, the pump cover is provided with a first perimeter and a second perimeter spaced apart from each other. The second perimeter is located inside the first perimeter. The second perimeter forms a water outlet cavity communicating with the water outlet, and a water inlet cavity communicating with the water inlet is formed between the first perimeter and the second perimeter. Wherein, the water inlet cavity and the diaphragm assembly enclose to form the low-pressure cavity, and the water outlet cavity and the diaphragm assembly enclose to form the high-pressure cavity.

[0010] In one embodiment, the water inlet cavity has a first side wall, a first bottom wall, and a transition wall connecting the first side wall and the first bottom wall. In the direction from the first perimeter to the second perimeter, the transition wall is inclined.

[0011] In one embodiment, the diaphragm assembly includes a diaphragm and a piston cover. The diaphragm and the piston cover enclose to form a pump cavity; the extending direction of the transition wall is consistent with the extending direction of at least a part of the outer wall surface of the piston cover.

[0012] In one embodiment, a plurality of protruding portions are formed on the side of the piston cover facing the pump cover. The protruding portions are provided with a plurality of first water passing holes communicating the low-pressure cavity and the pump cavity, and a water receiving groove is formed between any two adjacent protruding portions.

[0013] In one embodiment, a protruding portion is formed on the side of the piston cover facing the pump cover. The protruding portion includes a connected protruding side wall and a protruding top wall. The protruding top wall is provided with an installation hole for installing the umbrella valve of the diaphragm assembly, and the extending direction of the transition wall is consistent with the extending direction of the protruding side wall.

[0014] In one embodiment, the distance between the protruding side wall and the transition wall is M1, satisfying 1mm ≤ M1 ≤ 2mm.

[0015] In one embodiment, the first bottom wall is provided with a relief groove for avoiding the valve stem portion of the umbrella valve of the diaphragm assembly.

[0016] In one embodiment, the distance between the protruding top wall and the first bottom wall is set as M2, and the distance between the bottom of the relief groove and the first bottom wall is set as M3, satisfying M2 < M3.

[0017] In one embodiment, the pump cover has an outer wall surface away from the diaphragm assembly. The water outlet cavity has a second bottom wall. The distance from the second bottom wall to the outer wall surface of the pump cover is less than the distance from the first bottom wall to the outer wall surface of the pump cover.

[0018] In an embodiment, a positioning wall is further provided between the transition wall and the first side wall, and the positioning wall has a limiting step surface for abutting against the piston cover.

[0019] In an embodiment, the geometric centers of the first perimeter and the second perimeter coincide. The distance from the geometric center to the wall surface of the first perimeter is set as L1, and the distance from the geometric center to the wall surface of the second perimeter is set as L2, satisfying 1.5 ≤ L1 / L2 ≤ 2.5.

[0020] In an embodiment, the booster pump further includes a pendulum wheel assembly. The pendulum wheel assembly is disposed in the base and is connected to the diaphragm. The pendulum wheel assembly is used to pump the fluid from the low-pressure chamber to the pump chamber and from the pump chamber to the high-pressure chamber.

[0021] The present utility model also provides a water purification device, which includes the water circuit system. The water circuit system has an air inlet end, a water inlet end, and a water outlet end. The water circuit system includes an air inlet valve, a jet mixer, a booster pump, and a gas mixing tank. The jet mixer has a first inlet, a second inlet, and a mixing outlet. One end of the air inlet valve is communicated with the air inlet end, and the other end is communicated with the first inlet. The second inlet is communicated with the water inlet end. The booster pump includes a base, a diaphragm assembly, and a pump cover. The diaphragm assembly is disposed in the base, and the pump cover is connected to the base. The pump cover is provided with a water inlet and a water outlet. The water inlet is communicated with the mixing outlet, and the water outlet is communicated with the water outlet end. The gas mixing tank is disposed on the flow path between the booster pump and the water outlet end. Wherein, a spaced low-pressure chamber and high-pressure chamber are formed between the pump cover and the diaphragm assembly. The low-pressure chamber is communicated with the water inlet, and the high-pressure chamber is communicated with the water outlet. The volume of the low-pressure chamber is V1, and the volume of the high-pressure chamber is V2, satisfying 1.5 ≤ V1 / V2 ≤ 3.

[0022] The technical solution of the present utility model is to set the volume of the low-pressure chamber formed between the pump cover and the diaphragm assembly as V1, the volume of the high-pressure chamber as V2, and limit the ratio of the volume of the low-pressure chamber to the volume of the high-pressure chamber within the range of 1.5 - 3. Within this range, the gas pumping capacity of the booster pump is relatively high, and the gas pumping efficiency is relatively high, which can ensure the amount of gas in the water circuit system, thereby continuously generating microbubbles, improving the preparation effect of microbubbles, and improving the user experience. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0024] Figure 1 Schematic diagram of an embodiment of the water circuit system provided by the present invention;

[0025] Figure 2 Is Figure 1 Schematic structural diagram of an embodiment of the booster pump in the water circuit system in;

[0026] Figure 3 Is Figure 2 Cross-sectional view of the booster pump in;

[0027] Figure 4 Is Figure 3 Partial cross-sectional view of the booster pump in;

[0028] Figure 5 Is Figure 4 Partial enlarged view of part A in;

[0029] Figure 6 Is Figure 4 Partial enlarged view of part A in;

[0030] Figure 7 Is Figure 2 Exploded view of a part of the booster pump in;

[0031] Figure 8 Is Figure 2 Schematic structural diagram of the pump cover in;

[0032] Figure 9 Is Figure 8 Cross-sectional view of the pump cover in.

[0033] Explanation of the reference numerals in the drawings:

[0034] 1. Water circuit system; 1a. Air inlet end; 1b. Water inlet end; 1c. Water outlet end; 20. Air inlet valve; 30. Ejector; 31. First inlet; 32. Second inlet; 33. Mixed outlet; 40. Gas mixing tank; 50. Bubbler; 60. Pressure regulating valve; 70. Filter assembly; 80. Air filter element; 91. First check valve; 92. Second check valve;

[0035] 10. Booster pump;

[0036] 100. Base;

[0037] 200, diaphragm assembly; 210, diaphragm; 220, piston cover; 221, protrusion; 221a, protrusion side wall; 221b, protrusion top wall; 221b1, mounting hole; 222, first water passage hole; 223, second water passage hole; 230, pump chamber; 240, umbrella valve; 241, valve stem portion; 242, stop portion; 250, water storage tank;

[0038] 300, pendulum wheel assembly;

[0039] 400, pump cover; 400a, water inlet; 400b, water outlet; 400c, outer wall surface; 410, first border; 420, second border; 421, annular boss; 430, water inlet chamber; 431, first side wall; 432, first bottom wall; 432a, relief groove; 433, transition wall; 434, positioning wall; 434a, limiting step surface; 440, water outlet chamber; 441, second bottom wall; 442, reinforcing rib; 450, mounting groove; 451, first pressure relief hole; 452, second pressure relief hole;

[0040] 510, low-pressure chamber; 520, high-pressure chamber;

[0041] 600, pressure relief assembly;

[0042] 700, motor; 710, housing;

[0043] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0045] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0047] In the related art, a microbubble water circuit system includes a booster pump, a gas mixing tank, and a water outlet module. The booster pump introduces water and air into the gas mixing tank, where the air and water are mixed to form a gas-liquid mixture, and then the gas-liquid mixture flows into the water outlet module to form micro-nano bubbles. However, the volume ratio of the low-pressure chamber to the high-pressure chamber of the existing booster pump is too large, that is, the volume of the low-pressure chamber is too large, making it difficult for the booster pump to pump air during use, with low air pumping efficiency and weak air pumping capacity, resulting in discontinuous microbubble water output from the water outlet module, thus leading to a poor user experience.

[0048] The present utility model provides a water circuit system that can improve the air pumping efficiency of the booster pump, thereby ensuring continuous microbubble water output from the water circuit system and enhancing the user experience.

[0049] Please refer to Figures 1 to 5, in an embodiment of the present utility model, the water circuit system 1 has an air inlet end 1a, a water inlet end 1b and a water outlet end 1c. The water circuit system 1 includes an air inlet valve 20, a jet pump 30, a booster pump 10 and a gas mixing tank 40. The jet pump 30 has a first inlet 31, a second inlet 32 and a mixing outlet 33. One end of the air inlet valve 20 is communicated with the air inlet end 1a, and the other end is communicated with the first inlet 31. The second inlet 32 is communicated with the water inlet end 1b. The booster pump 10 includes a base 100, a diaphragm assembly 200 and a pump cover 400. The diaphragm assembly 200 is arranged on the base 100. The pump cover 400 is connected to the base 100. The pump cover 400 is provided with a water inlet 400a and a water outlet 400b. The water inlet 400a is communicated with the mixing outlet 33, and the water outlet 400b is communicated with the water outlet end 1c. The gas mixing tank 40 is arranged on the flow path between the booster pump 10 and the water outlet end 1c. Wherein, a low-pressure chamber 510 and a high-pressure chamber 520 are formed between the pump cover 400 and the diaphragm assembly 200. The low-pressure chamber 510 is communicated with the water inlet 400a, and the high-pressure chamber 520 is communicated with the water outlet 400b. The volume of the low-pressure chamber 510 is V1, and the volume of the high-pressure chamber 520 is V2, satisfying 1.5 ≤ V1 / V2 ≤ 3. Wherein, the pendulum wheel assembly 300 is used to pump the fluid from the low-pressure chamber 510 to the pump chamber 230, and pump it from the pump chamber 230 to the high-pressure chamber 520.

[0050] Specifically, the air inlet valve 20 is used to control the introduction of air or other gases into the jet pump 30 through the first inlet 31. The second inlet 32 of the jet pump 30 is communicated with the water inlet end 1b, that is, the second inlet 32 is used to introduce water into the jet pump 30. And the mixing outlet 33 of the jet pump 30 is communicated with the water inlet 400a of the booster pump 10. In this way, the two paths of gas and liquid can be converged into one flow path through the jet pump 30 and flow to the booster pump 10. The gas mixing tank 40 is arranged on the flow path between the booster pump 10 and the water outlet end 1c. The gas mixing tank 40 is mainly used to mix the air and water pressurized by the booster pump 10 in the gas mixing tank 40 to form a gas-liquid mixture and flow out. Finally, the micro-bubbled micro-foam water flows out from the water outlet end 1c for users to use.

[0051] Further, the jet pump 30 may include: a throat section (not marked in the figure), a liquid inlet section (not marked in the figure), a gas inlet section (not marked in the figure) and a liquid outlet section (not marked in the figure). The two ends of the throat section are respectively communicated with the liquid inlet section and the liquid outlet section. The liquid inlet section is adapted to be communicated with the water inlet end 1b. The liquid outlet section is communicated with the booster pump 10. The gas inlet section is arranged on the side wall of the throat section and is communicated with the throat section. The gas inlet section is also communicated with the air inlet valve 20.

[0052] Specifically, to allow gas (such as air) to enter the water circuit system 1, a negative pressure must be generated inside the pipeline of the water circuit system 1. Under the action of atmospheric pressure, the air is pressed into the water circuit system 1. The ejector 30 and the booster pump 10 in the water circuit system 1 together complete the generation of negative pressure. The ejector 30 is a three-way quick connector with a Venturi structure. According to Bernoulli's principle, when water flows through the throat section from the liquid inlet section, a negative pressure will be generated. Under the action of atmospheric pressure, air is inhaled into the water circuit system 1 from the air inlet end 1a. The inhaled gas flows through the intake valve 20 and then into the throat section through the intake pipe section. The gas and water converge into a single flow path in the throat section and flow into the booster pump 10 through the liquid outlet section. Through the cooperation of the throat section, the liquid inlet section, the intake pipe section, and the liquid outlet section, when water flows through the throat section from the liquid inlet section, the gas can be inhaled into the water circuit system 1, so that the gas and water are transported to the booster pump 10.

[0053] Please refer to Figure 3 , the booster pump 10 includes a base 100, a diaphragm assembly 200 is arranged inside the base 100, and the diaphragm assembly 200 has a pump chamber 230 for boosting the fluid flowing into the booster pump 10. The pump cover 400 is provided with a water inlet 400a and a water outlet 400b. The fluid can flow into the booster pump 10 from the water inlet 400a and flow out from the water outlet 400b after being pressurized. It should be emphasized that the fluid referred to here means a mixture of gas and liquid. That is to say, gas and liquid flow into the booster pump 10 from the water inlet 400a at the same time, and after the action of the booster pump 10, they flow out from the water outlet 400b. Finally, the water flowing out of the water circuit system is micro-bubbled water. The micro-bubbled water can greatly increase the dissolved oxygen content in ordinary tap water, and this high dissolved oxygen effect lasts for a long time and the content is stable. The increase in dissolved oxygen helps to purify the water body, quickly inhibit and eliminate infectious bacteria, viruses, fungi and parasites, while not harming the beneficial microorganisms to the human body. The water with high dissolved oxygen can also promote the absorption of important nutrients such as vitamins, minerals, amino acids, and proteins by the human body, which is beneficial to physical health. At the same time, the micro-bubbled water can also clean vegetables and fruits more thoroughly, and can effectively remove pesticide residues, bacteria and viruses.

[0054] The whole formation process of the micro-bubbled water is as follows: First, air or other gases and water flow into the booster pump 10 together. The booster pump 10 is used to pump air or other gases and water together to the lower end of the water circuit for mixing to form a soda water mixed solution. Then, by expanding and releasing pressure, the gas dissolved in the water suddenly aggregates to form fine micro-bubbles, which are ejected from the micro-bubble water spray outlet to form micro-bubbled water.

[0055] Please refer to Figure 5, a low-pressure chamber 510 and a high-pressure chamber 520 are formed between the pump cover 400 and the diaphragm assembly 200 in this embodiment. Specifically, the low-pressure chamber 510 and the high-pressure chamber 520 are formed between the pump cover 400 and the piston cover 220. The low-pressure chamber 510 communicates with the water inlet 400a, and the high-pressure chamber 520 communicates with the water outlet 400b. And the pendulum wheel assembly 300 is used to pump the fluid from the low-pressure chamber 510 to the pump chamber 230, and from the pump chamber 230 to the high-pressure chamber 520, that is, the fluid flowing in from the water inlet 400a first flows into the low-pressure chamber 510, is pumped to the high-pressure chamber 520 through the action of the pump chamber 230, and then flows out from the water outlet 400b. The volume of the low-pressure chamber 510 is V1, and the volume of the high-pressure chamber 520 is V2, satisfying 1.5 ≤ V1 / V2 ≤ 3. Within this range, the air pumping capacity of the booster pump 10 is relatively high, and the air pumping efficiency is relatively high, which can ensure the amount of gas in the water circuit system with this booster pump 10, so as to continuously generate micro-bubbles and improve the preparation effect of micro-bubbles. Compared with the traditional booster pump 10, the volume of the low-pressure chamber 510 of the booster pump 10 of the present invention is smaller, which is convenient for sucking the gas in the small volume into the pump chamber 230. That is to say, the low-pressure chamber 510 adopts a small-volume design, making the gap between the piston cover 220 and the pump cover 400 as small as possible, ensuring that the air sucked in by the booster pump 10 is as close as possible to the inlet of the pump chamber 230, so that the gas can be quickly sucked into the booster pump 10 and discharged from the pump chamber 230. When the volume of the low-pressure chamber 510 is V1 and the volume of the high-pressure chamber 520 is V2 and satisfies the range of 1.5 ≤ V1 / V2 ≤ 3, within this range, when the conventional tap water is introduced, the air suction capacity of the booster pump 10 can still reach more than 50 mL / min. In this way, it is ensured that the water circuit system 1 continuously produces micro-bubbles and improves the user experience. The ratio of the volume V1 of the low-pressure chamber 510 to the volume V2 of the high-pressure chamber 520 can be, for example, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0.

[0056] It should be noted here that both the low-pressure chamber 510 and the high-pressure chamber 520 are formed by the common enclosure of the pump cover 400 and the diaphragm assembly 200, rather than formed by the pump cover 400 itself. The volume V1 of the low-pressure chamber 510 refers to the flow-through volume of gas and water, that is, the maximum volume that the low-pressure chamber 510 can accommodate gas and water; the volume V2 of the high-pressure chamber 520 refers to the flow-through volume of gas and water, that is, the maximum volume that the high-pressure chamber 520 can accommodate gas and water.

[0057] Please refer to Figure 1, in one embodiment, the waterway system 1 further includes a bubbler 50, which is disposed downstream of the gas mixing tank 40 and communicated with the water outlet end 1c. Specifically, the bubbler 50 is arranged downstream of the gas mixing tank 40, and the bubbler 50 is mainly used for bubbling the gas-liquid mixture flowing into the bubbler. That is, the air dissolved in the water forms bubble water after being decompressed and released by the bubbler 50, thereby realizing the bubbling function of the bubbler 50. Preferably, the bubbler 50 can be arranged close to the water outlet end 1c. In this way, the existence time of the bubbles can be increased, the user experience can be enhanced, and moreover, the impact damage of the micro-nano bubbles by the pipeline during the outflow process can be reduced and the flow time in the pipeline can be decreased.

[0058] Please refer to Figure 1 , in one embodiment, the waterway system 1 further includes a pressure regulating valve 60, which is disposed upstream of the ejector 30 and communicated with the second inlet 32.

[0059] Specifically, the waterway system 1 may further include a pressure regulating valve 60, which is communicated with the ejector 30, and the pressure regulating valve 60 is used to connect the ejector 30 and the water inlet end 1b. Further, the pressure regulating valve 60 is connected between the water inlet end 1b and the ejector 30. The pressure regulating valve 60 is communicated with the water inlet end 1b through a pipeline, and the pressure regulating valve 60 is communicated with the liquid inlet pipe section of the ejector 30 through a pipeline. It should be noted that the key to enabling the waterway system 1 to continuously and stably generate micro-nano bubble water is to ensure that the waterway system 1 can suck in enough air. The air suction capacity of the waterway system 1 is mainly determined by the booster pump 10. When the specification of the booster pump 101 is selected, the air suction capacity of the waterway system 1 is also determined. To ensure the microbubble concentration, it is necessary to ensure that the gas-liquid ratio is not lower than a preset value. The preset value can be 2%. In this application, the case where the gas-liquid ratio is not lower than 2% is taken as an example for description. The gas-liquid ratio is the ratio of the air suction volume of the waterway system 1 to the water flow rate in the waterway system 1. The lowest gas-liquid ratio corresponds to the maximum water flow rate Q in the system. To meet the requirement that the gas-liquid ratio is not lower than 2%, it is necessary to throttle the waterway system 1 so that the water flow rate in the waterway system 1 does not exceed Q under any water pressure. The tap water flowing in from the water inlet end 1b flows into the ejector 30 through the pressure regulating valve 60. When the tap water flows through the pressure regulating valve 60, the pressure regulating valve 60 decompresses and throttles the tap water, reducing the water pressure of the tap water to the maximum pressure value allowed by the waterway system 1. The maximum pressure value corresponds to the upper limit value Q of the water flow rate in the waterway system 1. Thus, through the coordinated operation of the pressure regulating valve 60 and the ejector 30, it can be ensured that the water flow rate of the waterway system 1 does not exceed Q under any water pressure, the ratio of gas and water in the waterway system 1 can be ensured to be appropriate, the bubble concentration of the micro-nano bubble water can be ensured, and the situation of intermittent water outlet and air jet of the water purification equipment can be further avoided, improving the user experience.

[0060] Please refer to Figure 1, in one embodiment, the water circuit system 1 further includes a filtering component 70, which is disposed upstream of the pressure regulating valve 60 and is used for filtering the liquid; and / or, the water circuit system 1 further includes an air filter element 80, which is disposed upstream of the intake valve 20 and is used for filtering the gas.

[0061] Specifically, the water circuit system 1 may further include a filtering component 70, which may be configured as a filter. The filtering component 70 is connected to the pressure regulating valve 60, and the filtering component 70 is used to connect the pressure regulating valve 60 and the water inlet end 1b. Further, the filtering component 70 may be connected to the pressure regulating valve 60 through a pipeline, and the filtering component 70 may be connected to the water inlet end 1b through a pipeline. After the tap water flows in from the water inlet end 1b, the tap water flows into the pressure regulating valve 60 through the filtering component 70. When the tap water flows through the filtering component 70, the filtering component 70 can filter out impurities such as sediment, rust, and residual chlorine in the tap water, making the tap water cleaner.

[0062] Please refer to Figure 1 , furthermore, the water circuit system 1 may further include an air filter element 80, which is connected to the intake valve 20, and the air filter element 80 is used to connect the intake valve 20 and the air inlet end 1a. Among them, the air filter element 80 may be connected to the air inlet end 1a through a pipeline, and the air filter element 80 may be connected to the intake valve 20 through a pipeline. The air filter element 80 may also be configured as other air filter components that have a filtering effect on the gas. When the gas flows through the air filter element 80, the air filter element 80 can filter the inhaled gas, prevent impurities in the air from clogging the air path components, and can also improve the cleanliness of the micro-nano bubble water.

[0063] Please refer to Figure 1 , in one embodiment, the water circuit system 1 further includes a first one-way valve 91, which is disposed on the flow path between the injector 30 and the intake valve 20 to prevent the gas flowing into the injector 30 from flowing back. Further, the water circuit system 1 further includes a second one-way valve 92, which is disposed on the flow path between the booster pump 10 and the gas-liquid mixing tank 40 to prevent the gas-liquid mixture flowing out of the booster pump 10 from flowing back.

[0064] Please refer to Figure 5 and Figure 8 , in one embodiment, the pump cover 400 is provided with a first surrounding edge 410 and a second surrounding edge 420 that are spaced apart. The second surrounding edge 420 is located inside the first surrounding edge 410. The second surrounding edge 420 forms a water outlet cavity 440 communicating with the water outlet 400b, and a water inlet cavity 430 communicating with the water inlet 400a is formed between the first surrounding edge 410 and the second surrounding edge 420. Among them, the water inlet cavity 430 and the diaphragm assembly 200 enclose a low-pressure cavity 510, and the water outlet cavity 440 and the diaphragm assembly 200 enclose a high-pressure cavity 520.

[0065] Specifically, the pump cover 400 is usually an injection molded part. The first peripheral edge 410 and the second peripheral edge 420 provided on the pump cover 400 are integrally injection molded with the pump cover 400. The second peripheral edge 420 is located inside the first peripheral edge 410. An outlet cavity 440 communicating with the water outlet 400b is formed inside the second peripheral edge 420. The shape of the second peripheral edge 420 is preferably annular and is located at the center of the pump cover 400 for convenient water outlet. The shape of the first peripheral edge 410 is adapted to the number of cavities of the pump cavity 230 of the booster pump 10 or other related structures. The first peripheral edge 410 and the second peripheral edge 420 are spaced apart, and an inlet cavity 430 is formed between the first peripheral edge 410 and the second peripheral edge 420. Moreover, the inlet cavity 430 and the diaphragm assembly 200 enclose a low-pressure cavity 510, and the outlet cavity 440 and the diaphragm assembly 200 enclose a high-pressure cavity 520, that is, both the low-pressure cavity 510 and the high-pressure cavity 520 are jointly enclosed by the pump cover 400 and the diaphragm assembly 200.

[0066] Please refer to Figure 5 and Figure 9 In an embodiment, the inlet cavity 430 has a first side wall 431, a first bottom wall 432, and a transition wall 433 connecting the first side wall 431 and the first bottom wall 432. In the direction from the first peripheral edge 410 to the second peripheral edge 420, the transition wall 433 is inclined. Specifically, the inlet cavity 430 of the pump cover 400 has a first side wall 431, a first bottom wall 432, and a transition wall 433 connecting the first side wall 431 and the first bottom wall 432. To further reduce the volume of the low-pressure cavity 510 and ensure that the distance between the diaphragm assembly 200 and the cavity wall of the inlet cavity 430 is close enough and the gap is as small as possible, and ensure that the air sucked in by the booster pump 10 is as close as possible to the inlet of the pump cavity 230, thereby improving the pumping efficiency and air suction capacity of the booster pump 10, the transition wall 433 is inclined in the direction from the first peripheral edge 410 to the second peripheral edge 420.

[0067] Furthermore, the extending direction of the transition wall 433 is consistent with the extending direction of at least a part of the outer wall surface 400c of the piston cover 220. In this way, the inlet of the pump cavity 230 (i.e., the first water passing hole 222) can be closer to the cavity wall of the low-pressure cavity 510, so that it is more likely to suck gas into the pump cavity 230, ensuring the air suction capacity and air suction efficiency of the booster pump 10.

[0068] Please refer to Figure 7 In an embodiment, a plurality of protrusions 221 are formed on the side of the piston cover 220 facing the pump cover 400. The protrusions 221 are provided with a plurality of first water passing holes 222 communicating the low-pressure cavity 510 and the pump cavity 230. A water receiving groove 250 is formed between any two adjacent protrusions 221.

[0069] Specifically, the first water passing hole 222 is opened on the convex portion 221. The arrangement of the convex portion 221 can make the inlet of the pump chamber 230 (i.e., the first water passing hole 222) closer to the chamber wall of the low-pressure chamber 510, so that it is more likely to suck gas into the pump chamber 230, ensuring the air suction capacity and air suction efficiency of the booster pump 10. Moreover, a water receiving groove 250 is formed between any two adjacent convex portions 221. The size and depth of the water receiving groove 250 play a role in adjusting the volume V1 of the entire low-pressure chamber 510, so as to ensure that the volume ratio of the low-pressure chamber 510 and the high-pressure chamber 520 can be maintained within 1.5 - 3, improving the air suction capacity and pumping efficiency of the booster pump 10.

[0070] Please refer to Figure 5 and Figure 7 In another embodiment, a convex portion 221 is formed on the side of the piston cover 220 facing the pump cover 400. The convex portion 221 includes a connected convex side wall 221a and a convex top wall 221b. An installation hole 221b1 for installing the umbrella valve 240 of the diaphragm assembly 200 is opened on the convex top wall 221b. The extending direction of the transition wall 433 is the same as that of the convex side wall 221a.

[0071] Specifically, the arrangement of the convex portion 221 can make the inlet of the pump chamber 230 (i.e., the first water passing hole 222) closer to the chamber wall of the low-pressure chamber 510, so that it is more likely to suck gas into the pump chamber 230, ensuring the air suction capacity and air suction efficiency of the booster pump 10. The convex portion 221 includes a connected convex side wall 221a and a convex top wall 221b. An installation hole 221b1 for installing the umbrella valve 240 of the diaphragm assembly 200 is opened on the convex top wall 221b. A plurality of first water passing holes 222 are opened on the convex side wall 221a. The umbrella valve 240 is used to open or close the plurality of first water passing holes 222 to suck the gas and liquid in the low-pressure chamber 510 into the pump chamber 230 and pump them to the high-pressure chamber 520 to flow out from the water outlet 400b. The extending direction of the transition wall 433 is the same as that of the convex side wall 221a, which can ensure that the gas and liquid in the low-pressure chamber 510 are more easily pumped into the pump chamber 230 by the action of the balance wheel assembly 300, thus ensuring the air suction capacity of the booster pump 10.

[0072] Please refer to Figure 6, in an embodiment, the distance between the convex side wall 221a and the transition wall 433 is M1, satisfying 1 mm ≤ M1 ≤ 2 mm. Specifically, the distance between the convex side wall 221a and the transition wall 433 can be limited to be between 1 mm and 2 mm, so that the distance between the first water passing hole 222 and the cavity wall of the low-pressure cavity 510 is close enough to ensure the air suction capacity and pumping efficiency of the booster pump 10. The specific values of M1 can exemplarily be 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm.

[0073] Please refer to Figure 5 or Figure 6 , in an embodiment, the first bottom wall 432 is provided with a relief groove 432a for avoiding the valve rod part 241 of the umbrella valve 240 of the diaphragm assembly 200. Specifically, the umbrella valve 240 of the diaphragm assembly 200 is installed in the installation hole 221b1. The umbrella valve 240 includes a connected valve rod part 241 and a stop part 242. The valve rod part 241 passes through the installation hole 221b1 on the piston cover 220. The stop part 242 is arranged in a sheet shape and is located on the side of the piston cover 220 away from the low-pressure cavity 510. The stop part 242 is used to open or close a plurality of first water passing holes 222 to pump the water flow and gas in the low-pressure cavity 510 into the pump cavity 230. Since at least part of the valve rod part 241 abuts against the surface of the piston cover 220 to ensure the installation stability of the umbrella valve 240, that is, at least part of the valve rod protrudes from the surface of the piston cover 220. Therefore, in order to further reduce the distance between the first bottom wall 432 and the diaphragm assembly 200, a relief groove 432a is provided on the first bottom wall 432 to avoid the valve rod part 241. At the same time, the distance between the piston cover 220 and the cavity wall of the low-pressure cavity 510 can be further shortened to ensure the pumping efficiency of the booster pump 10.

[0074] Please refer to Figure 6 , in an embodiment, the distance between the convex top wall 221b and the first bottom wall 432 is set as M2, and the distance between the bottom of the relief groove 432a and the first bottom wall 432 is set as M3, satisfying M2 < M3. Among them, M3 can be understood as the groove depth of the relief groove 432a, M3 > M2, that is, the groove depth of the relief groove 432a is greater than the distance between the convex top wall 221b and the first bottom wall 432. In this way, setting the groove depth of the relief groove 432a deeper can further shorten the distance between the piston cover 220 and the first bottom wall 432, ensure that the volume of the low-pressure cavity 510 is small enough, and the distance between the two is close, which is conducive to improving the pumping efficiency and pumping capacity.

[0075] Please continue to refer to Figure 6, in an embodiment, the connection between the relief groove 432a and the first bottom wall 432 is smoothly transitioned. With such a setting, when the umbrella valve 240 moves, damage to the moving valve stem portion 241 caused by the connection between the relief groove 432a and the first bottom wall 432 can be avoided.

[0076] Please refer to Figure 9 , in an embodiment, the pump cover 400 has an outer wall surface 400c away from the diaphragm assembly 200, the water outlet cavity 440 has a second bottom wall 441, and the distance from the second bottom wall 441 to the outer wall surface 400c of the pump cover 400 is less than the distance from the first bottom wall 432 to the outer wall surface 400c of the pump cover 400. Specifically, the second bottom wall 441 is the bottom wall of the water outlet cavity 440, and can also be understood as the bottom wall of the high-pressure cavity 520. Since the high-pressure cavity 520 is located in the middle of the pump cover 400, to ensure that the volume V2 of the high-pressure cavity 520 is not too small and to ensure the overall water pumping efficiency of the booster pump 10, the cavity bottom of the high-pressure cavity 520 is deeper than the cavity bottom of the low-pressure cavity 510.

[0077] Please continue to refer to Figure 9 , in an embodiment, a circular boss 421 is provided at the connection between the second surrounding edge 420 and the first bottom wall 432. Specifically, a circular boss 421 is also provided at the connection between the second surrounding edge 420 and the first bottom wall 432. On the one hand, it can enhance the structural strength of the connection between the second surrounding edge 420 and the first bottom wall 432. On the other hand, when manufacturing the pump cover 400, it is convenient for the demolding of the pump cover 400.

[0078] Please refer to Figure 5 and Figure 8 , in an embodiment, a positioning wall 434 is further provided between the transition wall 433 and the first side wall 431, and the positioning wall 434 has a limiting step surface 434a for abutting against the piston cover 220. Specifically, when the pump cover 400 is assembled with the diaphragm assembly 200, the piston cover 220 is pressed by the limiting step surface 434a to press the diaphragm assembly 200 onto the base 100, and the sealing performance between the piston cover 220 and the diaphragm 210 can also be ensured to avoid water leakage.

[0079] Please refer to Figure 8, in one embodiment, the geometric centers of the first surrounding edge 410 and the second surrounding edge 420 coincide. Further, the distance from the geometric center to the wall surface of the first surrounding edge 410 is set as L1, and the distance from the geometric center to the wall surface of the second surrounding edge 420 is set as L2, satisfying 1.5 ≤ L1 / L2 ≤ 2.5. Specifically, L1 refers to the distance from the geometric center to the inner wall surface of the first surrounding edge 410, and L2 refers to the distance from the geometric center to the inner wall surface of the second surrounding edge 420; if the shape of the first surrounding edge 410 or the second surrounding edge 420 is an irregular shape, then L1 takes the average value of the maximum value and the minimum value of the distance from the geometric center to the inner wall surface of the first surrounding edge 410, and similarly, L2 takes the average value of the maximum value and the minimum value of the distance from the geometric center to the inner wall surface of the second surrounding edge 420. By setting in this way, by limiting the distances from the geometric center to the inner wall surfaces of the first surrounding edge 410 and the second surrounding edge 420, the volumes of the water inlet cavity 430 and the water outlet cavity 440 can be limited, so that the ratio between the volume V1 of the low-pressure cavity 510 and the volume V2 of the high-pressure cavity 520 is in the range of 1.5 - 3, thereby improving the air pumping capacity and air pumping efficiency of the booster pump 10.

[0080] Please continue to refer to Figure 8 , in one embodiment, the bottom wall of the high-pressure cavity 520 is provided with a reinforcing rib 442. Specifically, when the booster pump 10 is in use, the high-pressure cavity 520 is always in a high-pressure state. To prevent the high-pressure fluid from deforming the pump cover 400, a reinforcing rib 442 is further provided on the bottom wall of the high-pressure cavity 520 to improve the structural strength of the bottom of the high-pressure cavity 520.

[0081] Please refer to Figure 5 and Figure 8 , in one embodiment, the pump cover 400 is provided with an installation groove 450. The booster pump 10 further includes a pressure relief assembly 600 disposed in the installation groove 450. The bottom of the installation groove 450 is provided with a first pressure relief hole 451 and a second pressure relief hole 452. The first pressure relief hole 451 is communicated with the low-pressure cavity 510, the second pressure relief hole 452 is communicated with the high-pressure cavity 520, and the first pressure relief hole 451 and the second pressure relief hole 452 can be communicated through the pressure relief assembly 600.

[0082] Please refer to Figure 2 and Figure 3 , in one embodiment, the booster pump 10 further includes a motor 700. The housing 710 of the motor 700 is connected to the base 100. The motor shaft of the motor 700 is connected to the swing wheel assembly 300, and is used to drive the swing wheel assembly 300 to drive the diaphragm assembly 200, so as to pump the fluid from the low-pressure cavity 510 to the pump cavity 230, and pump the fluid from the pump cavity 230 to the high-pressure cavity 520.

[0083] In the technical solution of the present utility model, the volume of the low-pressure chamber 510 formed between the pump cover 400 and the diaphragm assembly 200 is set as V1, the volume of the high-pressure chamber 520 is set as V2, and the ratio of the volume of the low-pressure chamber 510 to the volume of the high-pressure chamber 520 is limited within the range of 1.5 - 3. Within this range, the air pumping capacity of the booster pump 10 is relatively high, and the air pumping efficiency is relatively high, which can ensure the amount of gas in the water circuit system 1, so as to continuously generate microbubbles, improve the preparation effect of microbubbles, and improve the user experience.

[0084] The present utility model also provides a water purification device, which includes the aforementioned booster pump 10. The specific structure of the booster pump 10 refers to the above embodiments. Since this water purification device adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0085] The above description is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the technical concept of the present utility model, or direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A waterway system, having an air inlet end, a water inlet end and a water outlet end, characterized in that: include: An air intake valve, an ejector, a boost pump and an air mixing tank, wherein the ejector has a first inlet, a second inlet and a mixing outlet; One end of the air inlet valve is connected to the air inlet end, and the other end is connected to the first inlet, and the second inlet is connected to the water inlet end; the booster pump includes a base, a diaphragm assembly and a pump cover, the diaphragm assembly is arranged on the base, the pump cover is connected to the base, the pump cover is provided with a water inlet and a water outlet, the water inlet is connected to the mixing outlet, and the water outlet is connected to the water outlet end; the mixing tank is arranged on the flow path between the booster pump and the water outlet end; Among them, a low-pressure chamber and a high-pressure chamber are formed between the pump cover and the diaphragm assembly, the low-pressure chamber is connected to the water inlet, and the high-pressure chamber is connected to the water outlet. The volume of the low-pressure chamber is V1, and the volume of the high-pressure chamber is V2, satisfying 1.5≤V1 / V2≤3.

2. The waterway system according to claim 1, characterized in that: The water system further comprises a bubbler, which is arranged downstream of the gas mixing tank and communicated with the water outlet.

3. The waterway system according to claim 2, characterized in that: The water system further includes a pressure regulating valve, which is disposed upstream of the ejector and communicated with the second inlet.

4. The waterway system according to claim 3, characterized in that: The water system further includes a filter assembly, which is disposed upstream of the pressure regulating valve and is used to filter the liquid; and / or, The water system also includes an air filter element, which is arranged upstream of the air inlet valve and is used for filtering gas.

5. The waterway system according to claim 1, characterized in that: The pump cover is provided with a first surrounding edge and a second surrounding edge spaced apart from each other, wherein the second surrounding edge is located on the inner side of the first surrounding edge, and the second surrounding edge forms a water outlet cavity connected with the water outlet, and a water inlet cavity connected with the water inlet is formed between the first surrounding edge and the second surrounding edge, wherein the water inlet cavity and the diaphragm assembly enclose the low-pressure cavity, and the water outlet cavity and the diaphragm assembly enclose the high-pressure cavity.

6. The waterway system according to claim 5, characterized in that: The water inlet cavity comprises a first side wall, a first bottom wall, and a transition wall connecting the first side wall and the first bottom wall. The transition wall is inclined in a direction from the first surrounding edge to the second surrounding edge.

7. The waterway system according to claim 6, characterized in that: The diaphragm assembly comprises a diaphragm and a piston cover, and the diaphragm and the piston cover enclose a pump chamber; the extension direction of the transition wall is consistent with the extension direction of at least a part of the outer wall surface of the piston cover.

8. The waterway system according to claim 7, characterized in that: A plurality of protrusions are formed on one side of the piston cover facing the pump cover. The protrusions are provided with a plurality of first water holes connecting the low-pressure chamber and the pump chamber, and a water storage tank is formed between any two adjacent protrusions.

9. The waterway system according to claim 7, characterized in that: A protrusion is formed on the side of the piston cover facing the pump cover, and the protrusion includes a protrusion side wall and a protrusion top wall connected to each other. The protrusion top wall is provided with a mounting hole for installing the umbrella valve of the diaphragm assembly, and the extension direction of the transition wall is consistent with the extension direction of the protrusion side wall.

10. The waterway system according to claim 9, characterized in that: The distance between the protruding side wall and the transition wall is M1, which satisfies 1mm≤M1≤2mm.

11. The waterway system according to claim 9, characterized in that: The first bottom wall is provided with a clearance groove, and the clearance groove is used to avoid the valve stem portion of the umbrella valve of the diaphragm assembly.

12. The waterway system according to claim 11, characterized in that: The distance between the protruding top wall and the first bottom wall is set to M2, and the distance between the groove bottom of the give way groove and the first bottom wall is set to M3, satisfying M2<M3.

13. The waterway system according to claim 7, characterized in that: The pump cover has an outer wall surface away from the diaphragm assembly, and the water outlet cavity has a second bottom wall. The distance from the second bottom wall to the outer wall surface of the pump cover is smaller than the distance from the first bottom wall to the outer wall surface of the pump cover.

14. The waterway system according to claim 7, characterized in that: A positioning wall is further provided between the transition wall and the first side wall, and the positioning wall has a limiting step surface for abutting against the piston cover.

15. The waterway system according to any one of claims 5 to 14, characterized in that: The geometric centers of the first surrounding edge coincide with the geometric centers of the second surrounding edge, the distance from the geometric center to the wall of the first surrounding edge is set to L1, and the distance from the geometric center to the wall of the second surrounding edge is set to L2, satisfying 1.5≤L1 / L2≤2.

5.

16. The waterway system according to any one of claims 7 to 14, characterized in that: The booster pump also includes a balance wheel assembly, which is arranged in the base and connected to the diaphragm; the balance wheel assembly is used to pump the fluid from the low-pressure chamber to the pump chamber, and from the pump chamber to the high-pressure chamber.

17. A water purification device, characterized in that: Comprising the water channel system as claimed in any one of claims 1 to 16.

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