Self-cleaning water purifier

Abstract

The utility model relates to the field of water purification equipment, particularly provides a self-cleaning water purifier, and aims to solve the problem of poor cleaning effect caused by lower temperature of cleaning liquid when an existing self-cleaning water purifier is used for cleaning a reverse osmosis membrane filter element. The utility model provides a self-cleaning water purifier which comprises a reverse osmosis membrane filter element, a cleaning assembly and an auxiliary cleaning component, the cleaning assembly is provided with a cleaning agent storage component, and the cleaning agent storage component can be communicated with the water inlet end of the reverse osmosis membrane filter element; the auxiliary cleaning component is arranged to be capable of promoting the cleaning liquid to act on dirt on the reverse osmosis membrane filter element, so that the dirt falls off from the reverse osmosis membrane filter element. According to the reverse osmosis membrane filter element cleaning device, the heated cleaning liquid is conveyed into the reverse osmosis membrane filter element for cleaning, the hot cleaning liquid is higher in dirt removing capacity, the reverse osmosis membrane filter element can be better cleaned, the problem that in the prior art, the cleaning effect is poor due to the fact that the temperature of the cleaning liquid is low is solved, and the use experience of a user is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification equipment field, and specifically provide a kind of self-cleaning water purifier. BACKGROUND

[0002] Water purification equipment in people's daily life in the long-term use process, dirt or other impurities in water can be attached in reverse osmosis membrane filter element, affect the water filtration rate of water purification equipment, make the service life of reverse osmosis membrane filter element decline.And using the reverse osmosis membrane filter element that a large number of dirt is attached to filter water, the quality of pure water obtained by filtration can decline.Therefore, the reverse osmosis membrane filter element is cleaned by cleaning agent in the prior art.

[0003] Cleaning fluid is at lower temperature, especially in winter cold weather, the temperature of cleaning fluid is lower, and its cleaning effect on reverse osmosis membrane filter element is poor, on the one hand, at lower temperature, cleaning agent and dirt are not conducive to the action, so as not to clean the dirt on the reverse osmosis membrane filter element, leading to poor cleaning effect, on the other hand, cleaning agent is not conducive to the dissolution of cleaning agent at lower temperature, so as to lead to poor cleaning effect, which seriously affects the user's experience. SUMMARY

[0004] The utility model aims at solving the above-mentioned technical problem, that is, solving the problem that the self-cleaning water purifier in the prior art is not good at cleaning the reverse osmosis membrane filter element due to the low temperature of cleaning fluid.

[0005] In the first aspect, the utility model provides a kind of self-cleaning water purifier, the self-cleaning water purifier includes: reverse osmosis membrane filter element;Cleaning assembly has cleaning agent storage component, the cleaning agent storage component is used to store cleaning agent, the cleaning assembly is set to be able to dissolve or dilute the cleaning agent to form cleaning fluid in the cleaning agent storage component, the cleaning agent storage component can be communicated with the water inlet end of the reverse osmosis membrane filter element, to transport cleaning fluid to the reverse osmosis membrane filter element;And auxiliary cleaning component, the auxiliary cleaning component is set to be able to promote the cleaning fluid and the dirt on the reverse osmosis membrane filter element action, so that dirt falls off from the reverse osmosis membrane filter element.

[0006] In the preferred technical solution of the above-mentioned self-cleaning water purifier, the auxiliary cleaning component includes at least one of heating module, bubble generator or ultrasonic cleaning module.

[0007] In the preferred technical solution of the above-mentioned self-cleaning water purifier, the auxiliary cleaning component includes heating module, wherein: the heating module is arranged at the upstream end of the cleaning agent storage component to heat the water entering the cleaning agent storage component;And / or, the heating module is sleeved on the outside of the cleaning agent storage component to heat the cleaning agent storage component.

[0008] In the self-cleaning water purifier, the water inlet main path is communicated with the water inlet end of the reverse osmosis membrane filter core, the cleaning assembly further has a cleaning pipeline, the cleaning agent storage member is arranged on the cleaning pipeline, two ends of the cleaning pipeline form a cleaning inlet and a cleaning outlet respectively, the cleaning inlet is communicated with the water inlet main path, so that the water in the water inlet main path enters the cleaning agent storage member through the cleaning inlet to form a cleaning liquid, and the cleaning outlet is communicated with the water inlet main path, so that the cleaning liquid is delivered into the reverse osmosis membrane filter core through the cleaning outlet.

[0009] In the self-cleaning water purifier, the cleaning assembly further comprises a cleaning valve and a cleaning agent storage member arranged on the cleaning pipeline in sequence, the cleaning agent storage member is located at the downstream end of the cleaning valve and is used for storing an acidic cleaning agent or an alkaline cleaning agent; or the cleaning assembly comprises at least two cleaning pipelines arranged in parallel, a cleaning valve and a cleaning agent storage member arranged on each cleaning pipeline, first ends of the cleaning pipelines are communicated and communicated with the cleaning inlet, second ends of the cleaning pipelines are communicated and communicated with the cleaning outlet, the cleaning agent storage members are located at the downstream end of the cleaning valve, and the cleaning agent storage members on each cleaning pipeline are used for storing different types of cleaning agents.

[0010] In the self-cleaning water purifier, the water inlet main path is communicated with the water inlet end of the reverse osmosis membrane filter core, the cleaning assembly further has a cleaning pipeline, the cleaning agent storage member is arranged on the cleaning pipeline, two ends of the cleaning pipeline form a cleaning inlet and a cleaning outlet respectively, the cleaning inlet is communicated with the water inlet main path, so that the water in the water inlet main path enters the cleaning agent storage member through the cleaning inlet to form a cleaning liquid, and the cleaning outlet is communicated with the water inlet main path, so that the cleaning liquid is delivered into the reverse osmosis membrane filter core through the cleaning outlet.

[0011] In the self-cleaning water purifier, the water inlet main path is communicated with the water inlet end of the reverse osmosis membrane filter core, the cleaning assembly further has a cleaning pipeline, the cleaning agent storage member is arranged on the cleaning pipeline, two ends of the cleaning pipeline form a cleaning inlet and a cleaning outlet respectively, the cleaning inlet is communicated with the water inlet main path, so that the water in the water inlet main path enters the cleaning agent storage member through the cleaning inlet to form a cleaning liquid, and the cleaning outlet is communicated with the water inlet main path, so that the cleaning liquid is delivered into the reverse osmosis membrane filter core through the cleaning outlet.

[0012] In the self-cleaning water purifier, the water inlet main path is communicated with the water inlet end of the reverse osmosis membrane filter core, the cleaning assembly further has a cleaning pipeline, the cleaning agent storage member is arranged on the cleaning pipeline, two ends of the cleaning pipeline form a cleaning inlet and a cleaning outlet respectively, the cleaning inlet is communicated with the water inlet main path, so that the water in the water inlet main path enters the cleaning agent storage member through the cleaning inlet to form a cleaning liquid, and the cleaning outlet is communicated with the water inlet main path, so that the cleaning liquid is delivered into the reverse osmosis membrane filter core through the cleaning outlet.

[0013] In the self-cleaning water purifier, the water inlet main path is communicated with the water inlet end of the reverse osmosis membrane filter core, the cleaning assembly further has a cleaning pipeline, the cleaning agent storage member is arranged on the cleaning pipeline, two ends of the cleaning pipeline form a cleaning inlet and a cleaning outlet respectively, the cleaning inlet is communicated with the water inlet main path, so that the water in the water inlet main path enters the cleaning agent storage member through the cleaning inlet to form a cleaning liquid, and the cleaning outlet is communicated with the water inlet main path, so that the cleaning liquid is delivered into the reverse osmosis membrane filter core through the cleaning outlet.

[0014] In the preferred technical scheme of the self-cleaning water purifier, the self-cleaning water purifier further comprises a drain pipe and a drain valve, one end of the drain pipe is communicated with the pure water outlet pipe, the other end of the drain pipe is communicated with the wastewater pipe, and the drain valve is arranged on the drain pipe and is used for controlling the opening and closing of the drain pipe; or the self-cleaning water purifier further comprises a backflow pipe and a backflow valve, one end of the backflow pipe is communicated with the pure water outlet pipe, the other end of the backflow pipe is communicated with the main water inlet pipe, and the backflow valve is arranged on the backflow pipe and is used for controlling the opening and closing of the backflow pipe.

[0015] In the case of adopting the technical scheme, the cleaning agent is dissolved or diluted in the cleaning assembly to form a cleaning liquid, and by arranging the auxiliary cleaning member, the cleaning liquid and the dirt on the reverse osmosis membrane filter core can be promoted to act on each other when the cleaning liquid cleans the reverse osmosis membrane filter core, so that the dirt on the reverse osmosis membrane filter core is accelerated to fall off, and the cleaning effect on the reverse osmosis membrane filter core is improved.

[0016] Further, by arranging the auxiliary cleaning member as a bubble generator, small bubbles can be generated, so that the small bubbles and the cleaning liquid jointly act on the dirt on the reverse osmosis membrane filter core, and the dirt on the reverse osmosis membrane filter core is accelerated to fall off; by arranging the auxiliary cleaning member as an ultrasonic cleaning module, the reverse osmosis membrane filter core can be vibrated at a high frequency and a low amplitude, so that the dirt on the reverse osmosis membrane filter core can be effectively removed.

[0017] Still further, the auxiliary cleaning member is arranged as a heating module, the heating module can heat the cleaning liquid in the cleaning assembly, and the heated cleaning liquid enters the reverse osmosis membrane filter core to clean the reverse osmosis membrane filter core; on the one hand, the hot cleaning liquid is beneficial to physical and chemical action with the dirt, improves the dirt removal effect, and accelerates the disintegration of the dirt on the reverse osmosis membrane filter core, so that the cleaning of the reverse osmosis membrane filter core is more thorough and the cleaning efficiency is higher; on the other hand, heating the cleaning liquid is beneficial to the dissolution of the cleaning agent, so that the cleaning effect of the cleaning liquid on the reverse osmosis membrane filter core is better; compared with the prior art in which the reverse osmosis membrane filter core is cleaned by using a cleaning liquid at room temperature, the cleaning liquid heated by the heating module has stronger dirt removal capacity, can better clean the reverse osmosis membrane filter core, and greatly improves the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0018] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0019] Figure 1 is a self-cleaning water purifier provided by Embodiment One of the present application;

[0020] Figure 2 is a self-cleaning water purifier provided by Embodiment Two of the present application;

[0021] Figure 3 is an embodiment three of the utility model provides a self-cleaning water purifier;

[0022] Figure 4 is an embodiment four of the utility model provides a self-cleaning water purifier.

[0023] List of reference signs:

[0024] 10, reverse osmosis membrane filter core;21, cleaning agent storage component;22, cleaning pipeline;221, cleaning inlet;222, cleaning outlet;23, cleaning valve;24, manifold;30, heating module;40, check valve;50, water inlet main road;61, booster pump;62, water inlet valve;63, prefilter unit;64, pure water outlet pipe;65, pure water water component;71, waste water pipe;72, waste water valve;81, drain pipe;82, drain valve;83, return pipe;84, return valve. DETAILED DESCRIPTION

[0025] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0026] It should be noted that in the description of the utility model, the terms "upper", "lower", "inner", "outer" and the like indicating the direction or positional relationship of the terms are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] As Figures 1 to 4The utility model provides a kind of self-cleaning water purifier, self-cleaning water purifier includes reverse osmosis membrane filter core 10, cleaning assembly and auxiliary cleaning component.Cleaning assembly has cleaning agent storage component 21, cleaning agent storage component 21 is used to store cleaning agent, cleaning assembly is set to be able to dissolve or dilute cleaning agent to form cleaning fluid in cleaning agent storage component 21, cleaning agent storage component 21 can be communicated with the water inlet end of reverse osmosis membrane filter core 10, to send cleaning fluid to reverse osmosis membrane filter core 10;Auxiliary cleaning component is set to be able to promote the effect of cleaning fluid and dirt on reverse osmosis membrane filter core 10, so that dirt falls off from reverse osmosis membrane filter core 10.

[0029] By such setting, that is, by setting auxiliary cleaning component, when cleaning fluid cleans reverse osmosis membrane filter core 10, the effect of cleaning fluid and dirt on reverse osmosis membrane filter core 10 can be promoted, so that dirt falls off from reverse osmosis membrane filter core 10 is accelerated, and the cleaning effect on reverse osmosis membrane filter core 10 is improved.

[0030] It should be noted that the specific setting type of the auxiliary cleaning component is not limited in the utility model, as long as it can promote the effect of cleaning fluid and dirt on reverse osmosis membrane filter core 10, so that dirt falls off from reverse osmosis membrane filter core 10, the adjustment and change of the specific setting type of the auxiliary cleaning component do not deviate from the principle and scope of the utility model, and should be included in the protection scope of the utility model.

[0031] In one specific embodiment, the auxiliary cleaning component is set as a heating module 30, and the heating module 30 is used to heat the cleaning fluid. The hot cleaning fluid can be beneficial to physical and chemical action with dirt, improving the dirt removal effect.

[0032] In another specific embodiment, the auxiliary cleaning component is set as a bubble generator. The bubble generator can generate tiny bubbles, so that the tiny bubbles and the cleaning fluid jointly act on the dirt on the reverse osmosis membrane filter core, accelerating the dirt to fall off from the reverse osmosis membrane filter core.

[0033] In another possible embodiment, the auxiliary cleaning component is set as an ultrasonic cleaning module, and the ultrasonic cleaning module is set outside the reverse osmosis membrane filter core 10 and can make the reverse osmosis membrane filter core 10 vibrate at high frequency and low amplitude, thereby effectively removing the dirt on the reverse osmosis membrane filter core 10.

[0034] Preferably, the auxiliary cleaning component includes at least one of a heating module, a bubble generator or an ultrasonic cleaning module.

[0035] The following will be introduced taking the auxiliary cleaning component as a heating module as an example.

[0036] Preferably, the auxiliary cleaning component is a heating module 30, and the heating module 30 is used to heat the cleaning fluid.

[0037] Through such a setting, the cleaning agent is dissolved or diluted in the cleaning assembly to form a cleaning liquid, the heating module 30 warms the cleaning liquid in the cleaning assembly, and the warmed cleaning liquid enters the reverse osmosis membrane filter core 10 to clean the reverse osmosis membrane filter core 10. On the one hand, the hot cleaning liquid is beneficial to physical and chemical action with dirt, improves the dirt removal effect, and speeds up the disintegration of dirt on the reverse osmosis membrane filter core 10, so that the cleaning of the reverse osmosis membrane filter core 10 is more thorough and the cleaning efficiency is higher. On the other hand, heating the cleaning liquid can be more beneficial to the dissolution of the cleaning agent, so that the cleaning effect of the cleaning liquid on the reverse osmosis membrane filter core 10 is better. Compared with the prior art in which a normal-temperature cleaning liquid is used to clean the reverse osmosis membrane filter core 10, the cleaning liquid heated by the heating module 30 has stronger dirt removal capability and can better clean the reverse osmosis membrane filter core 10, greatly improving the user experience.

[0038] It should be noted that in the specific embodiments of the present application, the specific structure of the heating module 30 is not limited, and any mode that can heat the cleaning liquid can be used, for example, the heating module 30 and the cleaning liquid can be indirectly heated by heat conduction, or a heating rod can be arranged in the cleaning liquid storage member 21 or the cleaning pipeline to directly heat the cleaning liquid, or the water flowing into the cleaning agent storage member 21 can be heated, and the like. Such adjustment and change of the specific heating mode of the heating module 30 do not deviate from the principles and scope of the present application and should be included in the protection scope of the present application.

[0039] It should be further noted that in actual application, the installation position of the heating module 30 is not limited, and the heating module 30 can heat the cleaning liquid before the cleaning liquid enters the reverse osmosis membrane filter core 10. For example, the heating module 30 can be arranged upstream of the cleaning agent storage member 21, and the water heated by the heating module 30 enters the cleaning agent storage member 21 to dilute or dissolve the cleaning agent in the cleaning agent storage member 21 to form a cleaning liquid. Alternatively, the heating module 30 can be arranged downstream of the cleaning agent storage member 21 to heat the cleaning liquid, or the heating module 30 can be arranged outside the cleaning agent storage member 21 to heat, and the like. Such adjustment and change of the specific position of the heating module 30 do not deviate from the principles and scope of the present application and should be included in the protection scope of the present application.

[0040] The installation position of the heating module 30 will be described below in two cases.

[0041] Case 1:

[0042] Preferably, as Figure 2 and Figure 3As shown, the heating module 30 is located at the upstream end of the detergent storage component 21 to heat the water entering the detergent storage component 21.

[0043] With this configuration, the heating module 30 is positioned upstream of the detergent storage component 21. The heating module 30 heats the water entering the cleaning pipe 22, and the heated water then enters the detergent storage component 21 to dissolve or dilute the detergent, resulting in a cleaning solution. The heated water accelerates the dissolution or dilution of the detergent, improving its solubility. This results in a higher detergent concentration in the cleaning solution entering the reverse osmosis membrane filter element 10 compared to room temperature water, leading to better cleaning of the reverse osmosis membrane filter element 10. Furthermore, the heated cleaning solution better dissolves the dirt on the reverse osmosis membrane filter element 10, enhancing its cleaning effect and significantly improving the user experience.

[0044] It should be noted that the heating module 30 can be set on the cleaning pipeline 22 and located upstream of the cleaning agent storage component 21, or the heating module 30 can be set on the main water inlet 50 and located upstream of the cleaning agent storage component 21, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0045] Preferably, such as Figure 2 and Figure 3 As shown, the heating module 30 is disposed on the cleaning pipeline 22 and located upstream of the cleaning agent storage component 21.

[0046] It should be noted that this utility model does not impose any limitation on the relative position of the heating module 30 and the cleaning valve 23. For example, the heating module 30 can be set at the upstream end of the cleaning valve 23, or the heating module 30 can be set at the downstream end of the cleaning valve 23, etc. Such adjustments and changes to the relative position of the heating module 30 and the cleaning valve 23 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0047] For example, the heating module 30 is disposed downstream of the cleaning valve.

[0048] Scenario 2:

[0049] like Figure 1 and Figure 4 As shown, the heating module 30 is fitted outside the detergent storage component 21 to heat the detergent storage component 21.

[0050] By such an arrangement, the heating module 30 heats the cleaning agent storage member 21, when water enters the cleaning agent storage member 21, the heating module 30 heats the liquid in the cleaning agent storage member 21, so that the cleaning agent can be dissolved or diluted by water faster, the concentration of the cleaning agent in the cleaning liquid entering the reverse osmosis membrane filter core 10 is improved, the cleaning effect of the cleaning liquid on the reverse osmosis membrane filter core 10 is better, and the user's use experience is greatly improved.

[0051] It should be noted that in actual application, the heating module 30 can be arranged as an electric resistance heating element, or the heating module 30 can be arranged as an electromagnetic heating element, etc., and such adjustment and change of the specific arrangement form of the heating module 30 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0052] Preferably, the self-cleaning water purifier of the present application further comprises a temperature detection member (not shown in the figure), which is used to detect the temperature of the cleaning liquid.

[0053] By arranging the temperature detection member, the temperature of the cleaning liquid can be detected, on the one hand, it can avoid the temperature of the cleaning liquid being too low to effectively improve the cleaning effect on the reverse osmosis membrane filter core 10, on the other hand, it can also avoid the temperature of the cleaning liquid being too high to cause damage to the membrane of the reverse osmosis membrane filter core 10, further improving the user's use experience.

[0054] It should be noted that in actual application, the present application does not make any limitation on the specific arrangement position of the temperature detection member, for example, the temperature detection member can be arranged in the cleaning agent storage member 21, or the temperature detection member can be arranged on the cleaning pipeline 22, or the temperature detection member can be arranged on the water inlet main line 50 between the cleaning assembly and the reverse osmosis membrane filter core 10, etc., and such flexible adjustment and change does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0055] Exemplarily, the temperature detection member is arranged on the cleaning pipeline 22 and located at the downstream end of the cleaning agent storage member 21.

[0056] Preferably, the temperature detection member is in communication connection with the heating module 30.

[0057] Through such an arrangement, when the temperature detection member detects that the temperature of the cleaning liquid is too high, a signal can be transmitted to the heating module 30 so that the heating module 30 stops heating, preventing the temperature of the cleaning liquid from being too high and causing damage to the membrane structure of the reverse osmosis membrane filter element 10, and when the temperature detection member detects that the temperature of the cleaning liquid is too low, a signal can be transmitted to the heating module 30 so that the heating module 30 starts heating, preventing the temperature of the cleaning liquid from being too low and causing poor cleaning effect, thereby helping to achieve intelligent control of the self-cleaning water purifier.

[0058] As shown in Figures 1 to 4 The self-cleaning water purifier further comprises a water inlet main path 50, which is in communication with the water inlet end of the reverse osmosis membrane filter element 10, and the cleaning assembly further has a cleaning pipeline 22, and the cleaning agent storage member 21 is arranged on the cleaning pipeline 22. The two ends of the cleaning pipeline 22 form a cleaning inlet 221 and a cleaning outlet 222, respectively. The cleaning inlet 221 is in communication with the water inlet main path 50, so that the water in the water inlet main path 50 enters the cleaning agent storage member 21 through the cleaning inlet 221 to form a cleaning liquid. The cleaning outlet 222 is in communication with the water inlet main path 50, so that the cleaning liquid is transported into the reverse osmosis membrane filter element 10 through the cleaning outlet 222.

[0059] Through such an arrangement, the water in the water inlet main path 50 enters the cleaning pipeline 22 through the cleaning inlet 221, dissolves the cleaning agent stored in the cleaning agent storage member 21 to form a cleaning liquid, and the cleaning liquid enters the water inlet main path 50 through the cleaning outlet 222 and is then transported to the water inlet end of the reverse osmosis membrane filter element 10, thereby flushing the reverse osmosis membrane filter element 10.

[0060] It should be noted that the cleaning inlet 221 is not limited to being arranged in communication with the water inlet main path 50. For example, a water inlet pipe can be directly connected to the cleaning agent storage member 21, and an external water source is transported into the cleaning agent storage member 21 through the water inlet pipe to dissolve the cleaning agent. Alternatively, two independent first and second chambers can be provided in the cleaning agent storage member 21, wherein the first chamber is used to store the cleaning agent, and the second chamber is used to store water. When the reverse osmosis membrane filter element 10 needs to be cleaned, the water in the second chamber can be mixed with the cleaning agent in the first chamber to form a cleaning liquid, and the like. Such flexible adjustment and change do not deviate from the principles and scope of the present application and should be included in the protection scope of the present application. Of course, preferably, the cleaning inlet 221 is arranged in communication with the water inlet main path 50, so that the water in the water inlet main path 50 enters the cleaning agent storage member 21 to dissolve the cleaning agent.

[0061] It should be noted that in practical applications, the cleaning outlet 222 is not limited to being connected to the main inlet water line 50, with the cleaning component conveying the cleaning solution to the reverse osmosis membrane filter element 10 via the main inlet water line 50. For example, the reverse osmosis membrane filter element 10 can be configured to have two inlet ends, which are respectively connected to the main inlet water line 50 and the cleaning pipeline 22, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model. Of course, preferably, the cleaning outlet 222 is connected to the main inlet water line 50, with the cleaning component conveying the cleaning solution to the reverse osmosis membrane filter element 10 via the main inlet water line 50.

[0062] The cleaning component of this utility model will be described below with reference to two embodiments.

[0063] Example 1:

[0064] like Figure 1 As shown, the cleaning assembly also includes a cleaning valve 23 and a cleaning agent storage component 21 sequentially disposed on the cleaning pipeline 22. The cleaning agent storage component 21 is located downstream of the cleaning valve 23 and is used to store acidic or alkaline cleaning agents.

[0065] Understandably, the cleaning valve 23 is used to control the opening and closing of the cleaning pipeline 22. When the self-cleaning water purifier is in normal water production mode, the cleaning valve 23 cuts off the cleaning pipeline 22. When the self-cleaning water purifier cleans the reverse osmosis membrane filter element 10, the cleaning valve 23 opens, and the water in the main inlet 50 flows through the cleaning pipeline 22 and enters the cleaning agent storage component 21, dissolving the cleaning agent in the cleaning agent storage component 21 to form a cleaning liquid, which then flows out of the cleaning pipeline 22 and into the reverse osmosis membrane filter element 10.

[0066] It should be noted that in specific embodiments of this utility model, the cleaning agent can be solid or liquid, and can be acidic or alkaline. The appropriate cleaning agent can be selected according to the specific type of dirt on the reverse osmosis membrane filter element 10.

[0067] Example 2:

[0068] like Figure 2 As shown, the cleaning assembly includes at least two parallel cleaning pipes 22, a cleaning valve 23 disposed on each cleaning pipe 22, and a cleaning agent storage component 21. The first ends of the plurality of cleaning pipes 22 converge and are connected to a cleaning inlet 221, and the second ends of the plurality of cleaning pipes 22 converge and are connected to a cleaning outlet 222. The cleaning agent storage component 21 is located downstream of the cleaning valve 23, and the cleaning agent storage component 21 on each cleaning pipe 22 is used to store different types of cleaning agents.

[0069] Through the arrangement, the cleaning agent storage member 21 of each cleaning pipeline 22 can store different types of cleaning agents, and a person skilled in the art can select appropriate cleaning agents according to the dirt types of the reverse osmosis membrane filter element 10 and selectively open the cleaning valves 23 on the cleaning pipelines 22.

[0070] It should be noted that, in actual application, the specific number of the parallelly arranged cleaning pipelines 22 is not limited by the present application, for example, two parallelly arranged cleaning pipelines 22 can be arranged, the cleaning valves 23 and the cleaning agent storage members 21 are arranged on the two cleaning pipelines 22 respectively, or three parallelly arranged cleaning pipelines 22 can be arranged, the cleaning valves 23 and the cleaning agent storage members 21 are arranged on the three cleaning pipelines 22 respectively, or a plurality of parallelly arranged cleaning pipelines 22 can be arranged, the cleaning valves 23 and the cleaning agent storage members 21 are arranged on the plurality of cleaning pipelines 22 respectively, and the like, and the adjustment and change of the specific arrangement number of the parallelly arranged cleaning pipelines 22 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0071] Exemplarily, the cleaning assembly includes two parallelly arranged cleaning pipelines 22, and the cleaning agent storage members 21 on the two cleaning pipelines 22 respectively store acidic cleaning agents and alkaline cleaning agents.

[0072] Preferably, the cleaning assembly further includes a converging pipe 24, the second ends of the plurality of cleaning pipelines 22 converge and communicate with the converging pipe 24, and the end of the converging pipe 24 forms a cleaning outlet 222.

[0073] Through the arrangement, the connection position of the cleaning pipeline 22 and the water inlet main pipeline 50 is simpler, and the leakage of liquid at the connection position of the water inlet main pipeline 50 caused by the connection of the plurality of cleaning pipelines 22 and the water inlet main pipeline 50 is avoided.

[0074] It should be noted that, when the reverse osmosis membrane filter element 10 is cleaned, the reverse osmosis membrane filter element 10 can be first cleaned by using the acidic cleaning agent, then cleaned by using the alkaline cleaning agent, or the reverse osmosis membrane filter element 10 can be first cleaned by using the alkaline cleaning agent, then cleaned by using the acidic cleaning agent, and the like, and the flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0075] It should be further noted that the specific type of the acidic cleaning agent is not limited by the present application, for example, the acidic cleaning agent can be at least one of malic acid, citric acid, hydrochloric acid and phosphoric acid, and of course the acidic cleaning agent can also be other types of acidic solution, and a person skilled in the art can adjust according to actual needs.

[0076] Preferably, the acidic cleaning agent is malic acid or citric acid, which has good disinfection and sterilization effect while cleaning dirt, and can disinfect and sterilize the reverse osmosis membrane filter element 10.

[0077] It should be noted that the specific type of the alkaline cleaning agent is not limited in the present application, for example, the alkaline cleaning agent can be at least one of dishwashing powder, soda, baking soda, sodium hydroxide, potassium hydroxide, calcium hydroxide, calcium oxide, sodium citrate, ethylenediaminetetraacetic acid tetrasodium, sodium dodecyl sulfate, sodium disulfite, sodium bisulfite, of course, the alkaline cleaning agent can also be other types of alkaline solution, and those skilled in the art can adjust according to actual needs.

[0078] It should be noted that in actual application, those skilled in the art can set the cleaning agent storage member 21 to have an anti-backflow structure to prevent the water in the water inlet main path 50 from flowing back to the cleaning agent storage member 21 through the cleaning outlet 222, or a one-way valve 40 can be arranged at the downstream end of the cleaning agent storage member 21 to prevent the water in the water inlet main path 50 from flowing back to the cleaning agent storage member 21 through the cleaning outlet 222, or a control valve can be arranged at the downstream end of the cleaning agent storage member 21 to prevent the water in the water inlet main path 50 from flowing back to the cleaning agent storage member 21 through the cleaning outlet 222, and the like, such flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0079] Preferably, the self-cleaning water purifier further comprises a one-way valve 40 arranged on the cleaning pipeline 22, and the one-way valve 40 is arranged at the downstream end of the cleaning agent storage member 21.

[0080] Through such an arrangement, during the water production process of the normal operation of the self-cleaning water purifier, the one-way valve 40 can prevent the water in the water inlet main path 50 from flowing back to the cleaning agent storage member 21 through the cleaning outlet 222 of the cleaning pipeline 22, so that the cleaning agent mixed in the water does not affect the health of the user, and the cleaning agent cannot be dissolved too early to clean the reverse osmosis membrane filter element 10. Moreover, since the cost of the one-way valve 40 is lower than that of the control valve, compared with the form of arranging the control valve at the downstream end of the cleaning agent storage member 21, the form of arranging the one-way valve 40 at the downstream end of the cleaning agent storage member 21 can further reduce the cost of the self-cleaning water purifier.

[0081] As shown in Figures 1 to 4 The self-cleaning water purifier further comprises a booster pump 61 arranged on the water inlet main path 50, and the cleaning outlet 222 is located at the downstream end of the booster pump 61.

[0082] It can be understood that the booster pump 61 is arranged on the water inlet main path 50 to pressurize the water in the water inlet main path 50, so that the water is filtered into the reverse osmosis membrane filter core 10 under the action of pressure. By arranging the cleaning outlet 222 at the downstream end of the booster pump 61, the cleaning liquid can be prevented from passing through the booster pump 61, thereby avoiding corrosion of the diaphragm in the booster pump 61 by the cleaning agent and affecting the service life of the booster pump 61.

[0083] It should be noted that the cleaning outlet 222 is not limited to being arranged at the downstream end of the booster pump 61. For example, the cleaning outlet 222 can also be arranged at the upstream end of the booster pump, and the like. Such adjustment and change of the specific arrangement position of the cleaning outlet 222 and the booster pump 61 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the cleaning outlet 222 is arranged at the downstream end of the booster pump 61.

[0084] Preferably, the self-cleaning water purifier further comprises a water inlet valve 62 arranged on the water inlet main path 50 and used for controlling the opening and closing of the water inlet main path 50, the cleaning inlet 221 is arranged at the upstream end of the water inlet valve 62, and the cleaning outlet 222 is arranged at the downstream end of the water inlet valve 62.

[0085] Through such an arrangement, when the self-cleaning water purifier is in a normal water production mode, the water inlet valve 62 is opened, so that the water can flow from the water inlet main path 50 into the reverse osmosis membrane filter core 10 for filtration; when the cleaning assembly cleans the reverse osmosis membrane filter core 10, the water inlet valve 62 is closed, and the water in the water inlet main path 50 flows into the cleaning pipeline 22 to dissolve the cleaning agent in the cleaning agent storage member 21, forming the cleaning liquid.

[0086] It should be noted that the cleaning inlet 221 is not limited to being arranged at the upstream end of the water inlet valve 62. For example, the cleaning inlet 221 can also be arranged at the downstream end of the water inlet valve 62, and the like. Such adjustment and change of the specific arrangement position between the cleaning inlet 221 and the water inlet valve do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the cleaning inlet 221 is arranged at the upstream end of the water inlet valve 62.

[0087] As shown in FIG. 1, Figures 1 to 4 The self-cleaning water purifier further comprises a pre-filtering unit 63, the water outlet end of the pre-filtering unit 63 is communicated with the water inlet main path 50, and the cleaning inlet 221 is arranged at the downstream end of the pre-filtering unit 63.

[0088] By setting the pre-filtering unit 63, water can be preliminarily filtered, and the water filtered by the pre-filtering unit 63 enters the reverse osmosis membrane filter core 10 through the water inlet main path 50 for filtration, thereby prolonging the service life of the reverse osmosis membrane filter core 10. Meanwhile, the cleaning inlet 221 is arranged at the downstream end of the pre-filtering unit 63, so that the water filtered by the pre-filtering unit 63 enters the cleaning agent storage member 21 through the cleaning inlet 221, dissolves the cleaning agent and forms a cleaning liquid, thereby improving the cleaning degree of the cleaning agent liquid and the solubility of the cleaning agent. The cleaning agent is dissolved in the water preliminarily filtered by the pre-filtering unit 63, and the reverse osmosis membrane filter core 10 is cleaned, so that the cleaning effect is better.

[0089] It should be noted that, in actual application, the cleaning inlet 221 can also be arranged at the upstream end of the pre-filtering unit 63, and the adjustment and change of the specific arrangement position of the cleaning inlet 221 and the pre-filtering unit 63 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0090] Preferably, as shown in Figures 1 to 4 The self-cleaning water purifier further comprises a waste water pipe 71 and a waste water valve 72 arranged on the waste water pipe 71, and the waste water pipe 71 is in communication with the waste water end of the reverse osmosis membrane filter core 10.

[0091] Through such an arrangement, when the self-cleaning water purifier is in a normal water production mode, the waste water generated by the reverse osmosis membrane filter core 10 can be discharged through the waste water pipe 71, and when the self-cleaning assembly is in a cleaning mode, the cleaning liquid after cleaning the reverse osmosis membrane filter core 10 can be discharged through the waste water pipe 71. The waste water valve 72 is used to adjust the proportion of pure water and waste water when the reverse osmosis membrane filter core 10 filters water.

[0092] As shown in Figures 1 to 4 In the embodiment of the present application, the self-cleaning water purifier further comprises a pure water outlet pipe 64 and a pure water use member 65, and the pure water end of the reverse osmosis membrane filter core 10 is in communication with the pure water use member 65 through the pure water outlet pipe 64.

[0093] Through such an arrangement, the pure water outlet pipe 64 can output the pure water generated by the reverse osmosis membrane filter core 10 to the pure water use member 65 for use by the user.

[0094] It should be noted that in actual application, the specific setting type of the pure water water member 65 is not limited by those skilled in the art, as long as the water output at the pure water end of the reverse osmosis membrane filter core 10 can be used for user drinking, for example, the pure water water member 65 can be set as a pure water tank, the pure water filtered by the reverse osmosis membrane filter core 10 is directly delivered into the pure water tank for user drinking, or the pure water water member 65 can be set as a post-filter, the pure water filtered by the reverse osmosis membrane filter core 10 is delivered into the post-filter to improve the taste before being used by the user, or the pure water water member 65 can be set as a water outlet member (water outlet nozzle or faucet), the pure water filtered by the reverse osmosis membrane filter core 10 is directly flowed out from the water outlet member (water outlet nozzle or faucet), and the like, and the adjustment and change of the specific setting type of the pure water water member 65 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0095] Preferably, the pure water water member 65 comprises a post-filter, and the pure water filtered by the reverse osmosis membrane filter core 10 is delivered into the post-filter to improve the taste before being used by the user.

[0096] As shown in Figure 3 Preferably, the self-cleaning water purifier further comprises a drain pipe 81 and a drain valve 82, one end of the drain pipe 81 is communicated with the pure water outlet pipe 64, the other end of the drain pipe 81 is communicated with the waste water pipe 71, and the drain valve 82 is arranged on the drain pipe 81 and is used for controlling the opening and closing of the drain pipe 81.

[0097] After the self-cleaning water purifier cleans the reverse osmosis membrane filter core 10, a small amount of cleaning liquid will be left at the pure water end of the reverse osmosis membrane filter core 10, therefore, the pure water at the pure water end of the reverse osmosis membrane filter core 10 after the self-cleaning water purifier is cleaned contains cleaning agent residues, and the pure water containing a small amount of cleaning agent residues flowed out from the pure water end of the reverse osmosis membrane filter core 10 can be flowed into the waste water pipe 71 through the drain pipe 81 after the drain valve 82 is opened, which is helpful to realize zero addition and zero chemical pollution.

[0098] It should be noted that it is not limited to discharging the pure water containing cleaning agent residues at the pure water end of the reverse osmosis membrane filter core 10 through the drain pipe 81 and the drain valve 82, any form capable of discharging the pure water containing cleaning agent residues at the pure water end of the reverse osmosis membrane filter core 10 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0099] For example, as shown in Figure 4 The self-cleaning water purifier further comprises a backflow pipe 83 and a backflow valve 84, one end of the backflow pipe 83 is communicated with the pure water outlet pipe 64, the other end of the backflow pipe 83 is communicated with the water inlet main path 50, and the backflow valve 84 is arranged on the backflow pipe 83 and is used for controlling the opening and closing of the backflow pipe 83.

[0100] The water at the pure water end of the reverse osmosis membrane filter core 10 can be transported to the water inlet main line 50 through the backflow pipe 83, and then to the water inlet end of the reverse osmosis membrane filter core 10, and the pure water at the pure water end of the reverse osmosis membrane filter core 10 containing a small amount of cleaning agent residues is discharged after multiple filtrations.

[0101] Through such a setting, when the cleaning assembly finishes cleaning the reverse osmosis membrane filter core 10, the backflow valve 84 is opened, the water at the pure water end of the reverse osmosis membrane filter core 10 containing cleaning agent residues can be transported to the water inlet main line 50 through the backflow pipe 83, and then to the water inlet end of the reverse osmosis membrane filter core 10, and the pure water at the pure water end of the reverse osmosis membrane filter core 10 containing cleaning agent residues is discharged after multiple filtrations, so as to avoid that the user drinks the pure water containing cleaning agent residues; when the self-cleaning water purifier is in a normal water production mode, the backflow valve 84 is closed, and the pure water filtered by the reverse osmosis membrane filter core 10 is transported to the pure water water using component 65 through the pure water outlet pipe 64, so as to be drunk by the user.

[0102] In addition, when the self-cleaning water purifier is not used for a long time, the TDS value at the pure water end of the reverse osmosis membrane filter core 10 is high, and through the setting of the drain pipe 81 or the backflow pipe 82, the water with high TDS at the pure water end of the reverse osmosis membrane filter core 10 can be discharged to the wastewater pipe 71 or to the water inlet end of the reverse osmosis membrane filter core 10, so as to solve the problem of "high TDS of the first cup of water".

[0103] Thus, the technical scheme of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical schemes after the changes or replacements will all fall within the protection scope of the present application.

Claims

1. A self-cleaning water purifier, characterized by, The self-cleaning water purifier comprises: a reverse osmosis membrane filter core; a cleaning assembly having a cleaning agent storage member for storing a cleaning agent, the cleaning assembly being configured to dissolve or dilute the cleaning agent to form a cleaning solution in the cleaning agent storage member, the cleaning agent storage member being in communication with a water inlet end of the reverse osmosis membrane filter core to deliver the cleaning solution to the reverse osmosis membrane filter core; and an auxiliary cleaning member configured to facilitate the cleaning solution to act on dirt on the reverse osmosis membrane filter core to remove the dirt from the reverse osmosis membrane filter core.

2. The self-cleaning water purifier according to claim 1, wherein The auxiliary cleaning member comprises at least one of a heating module, a bubble generator or an ultrasonic cleaning module.

3. The self-cleaning water purifier according to claim 2, wherein The auxiliary cleaning member comprises a heating module, wherein: the heating module is arranged at an upstream end of the cleaning agent storage member to heat water entering the cleaning agent storage member; and / or the heating module is arranged outside the cleaning agent storage member to heat the cleaning agent storage member.

4. The self-cleaning water purifier according to claim 1, wherein The self-cleaning water purifier further comprises a water inlet main line in communication with a water inlet end of the reverse osmosis membrane filter core, the cleaning assembly further comprises a cleaning pipeline on which the cleaning agent storage member is arranged, two ends of the cleaning pipeline forming a cleaning inlet and a cleaning outlet respectively, the cleaning inlet being in communication with the water inlet main line so that water in the water inlet main line enters the cleaning agent storage member through the cleaning inlet to form the cleaning solution, and the cleaning outlet being in communication with the water inlet main line to deliver the cleaning solution into the reverse osmosis membrane filter core through the cleaning outlet.

5. The self-cleaning water purifier according to claim 4, wherein The cleaning assembly further comprises a cleaning valve and a cleaning agent storage member arranged on the cleaning pipeline in sequence, the cleaning agent storage member being located at a downstream end of the cleaning valve and being used to store an acidic cleaning agent or an alkaline cleaning agent. Alternatively, the cleaning assembly comprises at least two cleaning pipelines arranged in parallel, a cleaning valve and a cleaning agent storage member arranged on each of the cleaning pipelines, first ends of the cleaning pipelines being merged and in communication with the cleaning inlet, second ends of the cleaning pipelines being merged and in communication with the cleaning outlet, the cleaning agent storage member being located at a downstream end of the cleaning valve, and the cleaning agent storage member on each of the cleaning pipelines being used to store a different type of cleaning agent.

6. The self-cleaning water purifier according to claim 4, wherein The self-cleaning water purifier further comprises a booster pump arranged on the water inlet main line, and the cleaning outlet is located at a downstream end of the booster pump. The self-cleaning water purifier further comprises a water inlet valve arranged on the water inlet main line and used to control the opening and closing of the water inlet main line, the cleaning inlet being located at an upstream end of the water inlet valve, and the cleaning outlet being located at a downstream end of the water inlet valve.

7. The self-cleaning water purifier according to claim 4, wherein The self-cleaning water purifier further comprises a pre-filter unit, and a water outlet end of the pre-filter unit is in communication with the water inlet main line, and the cleaning inlet is located at a downstream end of the pre-filter unit.

8. The self-cleaning water purifier according to claim 1, wherein The self-cleaning water purifier further comprises a wastewater pipe and a wastewater valve arranged on the wastewater pipe, and the wastewater pipe is in communication with a wastewater end of the reverse osmosis membrane filter core.

9. The self-cleaning water purifier according to claim 8, wherein, The self-cleaning water purifier further comprises a pure water outlet pipe and a pure water water member, and a pure water end of the reverse osmosis membrane filter core is communicated with the pure water water member through the pure water outlet pipe.

10. The self-cleaning water purifier according to claim 9, wherein, The self-cleaning water purifier further comprises a drain pipe and a drain valve, one end of the drain pipe is communicated with the pure water outlet pipe, the other end of the drain pipe is communicated with the waste water pipe, and the drain valve is arranged on the drain pipe and is used for controlling on-off of the drain pipe. Alternatively, the self-cleaning water purifier further comprises a water inlet main path, a backflow pipe and a backflow valve, the water inlet main path is communicated with a water inlet end of the reverse osmosis membrane filter core, one end of the backflow pipe is communicated with the pure water outlet pipe, the other end of the backflow pipe is communicated with the water inlet main path, and the backflow valve is arranged on the backflow pipe and is used for controlling on-off of the backflow pipe.

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