Intelligent backwashing water purifier
By designing an intelligent backwashing water purifier, the automatic backwashing of the filter cartridge is achieved through the cooperation of a sewage discharge control device and an air bladder. This solves the problem of existing water purifiers requiring manual operation, improves the filtration effect and service life, and enhances the user experience.
Patent Information
- Application Number
- CN202423153410.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The filtration and backwashing of existing water purifiers require manual operation, resulting in a poor user experience.
An intelligent backwashing water purifier was designed. By using a sewage discharge control device and an air bladder, the filter cartridge can be automatically backwashed. The sewage discharge port can be automatically opened or closed by the control of a solenoid valve, and the direction of water flow can be changed by the compression and expansion of the air bladder.
It enables automatic backwashing of the filter element, avoiding micropore clogging, improving filtration efficiency and product lifespan, while eliminating manual operation and enhancing user experience.
Smart Images

Figure CN223530041U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water treatment technology, specifically an intelligent backwashing water purifier. Background Technology
[0002] Chinese Patent No. CN202410235436.2 discloses a novel backwashing water purifier, comprising a container, filter media, and a valve body. The container includes a main body bottle and a main body cap. The main body cap has an inlet channel, an outlet channel, and a drain channel, with the outlet channel communicating with the inner cavity of the main body bottle. The filter media is vertically arranged inside the container and has a raw water channel. The valve body is rotatably mounted on the main body cap, with a first connecting port and a second connecting port on its exterior. The first and second connecting ports are connected via an internal water cavity within the valve body. When the valve body is in the filtration state, the inlet channel communicates with the first connecting port, and the second connecting port communicates with the raw water channel to achieve filtration. When the valve body is in the backwashing state, the raw water channel communicates with the second connecting port, and the first connecting port communicates with the drain channel to achieve backwashing. However, the valve body requires manual operation to rotate, meaning that the filtration and backwashing functions of the water purifier cannot be switched intelligently, requiring users to handle both processes themselves, resulting in a poor user experience. Therefore, further improvements are necessary. Utility Model Content
[0003] The present invention aims to provide an intelligent backwash water purifier to overcome the shortcomings of the prior art.
[0004] A smart backwash water purifier designed for this purpose includes a cylinder and a filter element. One end of the cylinder is open and connected to a water storage tank, while the other end is provided with a drain outlet. The filter element is disposed inside the cylinder. The cylinder also has a raw water inlet. An air bladder is disposed inside the water storage tank, and a purified water outlet is disposed on it. A drain outlet is provided with a drain electrical control device, which includes a solenoid valve and a drain electrical control board. The solenoid valve is connected to the drain outlet, and the drain electrical control board is electrically connected to the solenoid valve and controls the solenoid valve to open or close.
[0005] The sewage discharge electrical control device includes a housing, the sewage discharge electrical control board is disposed on the housing and electrically connected to the valve body of the solenoid valve, and the connecting pipe of the solenoid valve is connected to the sewage discharge port.
[0006] The sewage discharge electrical control device also includes a control panel, which is mounted on the housing and electrically connected to the sewage discharge electrical control board.
[0007] The outer casing is provided with a sewage discharge electrical control fixing part for fixed assembly.
[0008] The cylinder is cylindrical and has an open end at the end away from the drain outlet. The filter element is placed inside the cylinder through the open end. The water tank is cylindrical and has an open end. The airbag is placed inside the water tank through the open end. The open end of the cylinder and the open end of the water tank are interconnected.
[0009] The outer periphery of the cylinder opening is provided with an outer flange, and the outer periphery of the water storage tank opening is provided with an outer flange. The outer flange of the cylinder and the outer flange of the water storage tank correspond to each other, and a disassembly and assembly connecting ring is provided between them. The outer flange of the cylinder and the outer flange of the water storage tank are disassembled and assembled through the disassembly and assembly connecting ring.
[0010] The filter element is provided with a positioning ring at its end, and is positioned between the outer flange of the cylinder and the outer flange of the water storage tank by the positioning ring. The airbag is movably disposed inside the water storage tank.
[0011] A sealing element is provided between the outer flange of the cylinder and the outer flange of the water storage tank, or between the disassembly and assembly connecting ring and the outer flange of the cylinder, or between the disassembly and assembly connecting ring and the outer flange of the water storage tank, and the sealing elements are mutually sealed and cooperated.
[0012] The disassembly and assembly connection ring, the filter element, or the water storage tank is provided with an assembly part for fixed assembly.
[0013] The raw water inlet is located on the side wall of the filter element and is far away from the drain outlet, while the purified water outlet is located on the side wall of the water storage tank and is close to the air bladder.
[0014] Through the structural improvement described above, this utility model utilizes the sewage discharge control board to control the solenoid valve, enabling the solenoid valve to automatically open or close according to the user's needs.
[0015] When the drain control panel closes the solenoid valve, the drain outlet is also closed. Water enters the cylinder from the raw water inlet and is filtered through the filter element before entering the storage tank. When the water passes the location of the air bladder, the air bladder is compressed by the water pressure. At this time, the user opens the water outlet connected to the purified water outlet, and the water in the storage tank flows out from the purified water outlet for the user's use. When the drain control panel opens the solenoid valve, the drain outlet is also open. The water pressure in the cylinder and storage tank decreases, the previously compressed air bladder expands again, and the water in the storage tank is flushed back into the filter element, causing the material attached to the micropores of the filter element to be flushed out into the cylinder and finally discharged from the drain outlet, thus completing the reverse flushing of the filter element.
[0016] In other words, this utility model uses a sewage discharge electrical control device to automatically open and close the sewage outlet, and uses the compression and expansion of gas in the airbag to automatically change the direction of water flow to backwash the filter element. This not only avoids the problem of micropore blockage and poor filtration effect caused by long-term use of the filter element, thus improving the service life of the product, but also enables the filter element to automatically run backwash within a set time to avoid manual operation and improve the user experience. Attached Figure Description
[0017] Figure 1 This is an exploded structural diagram of an embodiment of the present invention.
[0018] Figure 2 This is an exploded structural diagram from another perspective of an embodiment of the present invention.
[0019] Figure 3 This is a schematic diagram of the assembly structure of an embodiment of the present utility model.
[0020] Figure 4 This is a schematic diagram of the assembly structure from another perspective of an embodiment of the present invention.
[0021] Figure 5 This is a schematic diagram of the assembly cross-sectional structure of an embodiment of the present invention.
[0022] Figure 6 This is a schematic diagram of the assembly structure of a sewage discharge electrical control device according to an embodiment of the present invention. Detailed Implementation
[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] See Figures 1-6 This intelligent backwashing water purifier includes a cylinder 1 and a filter element 2. One end of the cylinder 1 is open and connected to a water storage tank 3, while the other end is provided with a drain outlet 4. The filter element 2 is installed inside the cylinder 1. The cylinder 1 is also provided with a raw water inlet 5. An air bladder 6 is installed inside the water storage tank 3, and a clean water outlet 7 is also provided on it. A drain discharge electrical control device 8 is installed on the drain outlet 4. The drain discharge electrical control device 8 includes a solenoid valve 9 and a drain discharge electrical control board 10. The solenoid valve 9 is connected to the drain outlet 4, and the drain discharge electrical control board 10 is electrically connected to the solenoid valve 9 and controls the solenoid valve 9 to open or close.
[0026] In this embodiment, the solenoid valve 9 is controlled by the sewage discharge control board 10, so that the solenoid valve 9 can automatically open or close according to the user's needs.
[0027] When the sewage discharge control board 10 controls the solenoid valve 9 to close, the sewage outlet 4 is also closed. Water enters the cylinder 1 from the raw water inlet 5 and is filtered through the filter element 2. Then it enters the water storage tank 3. When the water passes the location of the air bladder 6, the air bladder 6 is compressed by the water pressure. At this time, the user opens the water outlet device connected to the clean water outlet 7, and the water in the water storage tank 3 flows out from the clean water outlet 7 for the user to use. When the sewage discharge control board 10 controls the solenoid valve 9 to open, the sewage outlet 4 is also open. The water pressure in the cylinder 1 and the water storage tank 3 decreases. The previously compressed air bladder 6 expands again and flushes the water in the water storage tank 3 back into the filter element 2, causing the material attached to the micropores of the filter element 2 to be flushed out to the cylinder 1 and finally discharged from the sewage outlet 4, thus completing the reverse flushing of the filter element 2.
[0028] That is, in this embodiment, the sewage discharge control device 8 is used to automatically open and close the sewage outlet 4, and the gas in the airbag 6 is compressed and expanded to automatically change the direction of water flow to backwash the filter element 2. This not only avoids the problem of micropore blockage and poor filtration effect caused by long-term use of the filter element 2, thus improving the service life of the product, but also enables the filter element 2 to automatically run backwash within a set time to avoid manual operation and improve the user experience.
[0029] The sewage discharge electrical control device 8 includes a housing 11, a sewage discharge electrical control board 10 is mounted on the housing 11 and electrically connected to the valve body of the solenoid valve 9, and the connecting pipe of the solenoid valve 9 is connected to the sewage discharge port 4.
[0030] The sewage discharge electrical control device 8 also includes a control panel 12, which is mounted on the housing 11 and electrically connected to the sewage discharge electrical control board 10.
[0031] The outer casing 11 is provided with a sewage discharge electrical control fixing part for fixed assembly.
[0032] In this embodiment, the control panel 12 is disposed on the outer surface of the housing 11, and the sewage discharge control board 10 is disposed inside the housing 11. The control panel 12, the sewage discharge control board 10, and the solenoid valve 9 are electrically connected to each other. When in use, the user can input parameters through the control panel 12, such as opening time and closing time. The sewage discharge control board 10 then controls the solenoid valve 9 to work according to the parameters input through the control panel 12. In addition, the control panel 12 is also provided with open and close buttons, and the user can directly control the solenoid valve 9 by using the open and close buttons in conjunction with the sewage discharge control board 10. The housing 11 can be fixedly mounted on the cylinder 1 through the sewage discharge control fixing part, or it can be fixedly mounted on the ground, countertop, or wall through the sewage discharge control fixing part.
[0033] The cylinder 1 is cylindrical and has an open end 13 at the end away from the drain outlet 4. The filter element 2 is placed inside the cylinder 1 through the open end 13. The water storage tank 3 is cylindrical and has an open end 14 at its end. The air bag 6 is placed inside the water storage tank 3 through the open end 14. The open end 13 of the cylinder and the open end 14 of the water storage tank are connected to each other, thereby facilitating the assembly between the cylinder 1 and the filter element 2, and between the water storage tank 3 and the air bag 6, simplifying the assembly process.
[0034] The outer periphery of the cylinder opening 13 is provided with an outer flange 15, and the outer periphery of the water tank opening 14 is provided with an outer flange 16. The outer flange 15 of the cylinder and the outer flange 16 of the water tank correspond to each other, and a disassembly and assembly connecting ring 17 is provided between them. The outer flange 15 of the cylinder and the outer flange 16 of the water tank are disassembled and assembled through the disassembly and assembly connecting ring 17.
[0035] In this embodiment, the disassembly and assembly of the disassembly and assembly connecting ring 17 with the outer flange 15 of the cylinder and the outer flange 16 of the water storage tank not only facilitates the disassembly and assembly of the cylinder 1 and the water storage tank 3, but also improves the assembly stability of the two. In addition, it also facilitates the user's disassembly and replacement of the filter element 2, thereby further simplifying the assembly process.
[0036] The filter element 2 is provided with a positioning ring 18 at its end, and is positioned between the outer flange 15 of the cylinder and the outer flange 16 of the water storage tank by the positioning ring 18. The air bag 6 is movably installed inside the water storage tank 3.
[0037] In this embodiment, the filter element 2 is a hollow fiber ultrafiltration membrane, which can be positioned between the outer flange 15 of the cylinder and the outer flange 16 of the water storage tank by the positioning ring 18, thereby improving the assembly stability of the filter element 2. Raw water enters the cylinder 1, then is filtered through the surface of the hollow fiber ultrafiltration membrane and enters the hollow fiber ultrafiltration membrane, and then enters the water storage tank 3. At the same time, since the air bladder 6 can move inside the water storage tank 3, it can be easily compressed and expanded, thereby increasing the water storage pressure and water pressure release inside the water storage tank 3.
[0038] A sealing element is provided between the outer flange 15 of the cylinder and the outer flange 16 of the water storage tank, or between the disassembly and assembly connecting ring 17 and the outer flange 15 of the cylinder, or between the disassembly and assembly connecting ring 17 and the outer flange 16 of the water storage tank, and the sealing elements are mutually sealed and cooperated.
[0039] In this embodiment, a sealing element is provided between the outer flange 15 of the cylinder and the outer flange 16 of the water storage tank. When the disassembly and assembly connecting ring 17 is assembled, it can be pressed between the outer flange 15 of the cylinder and the outer flange 16 of the water storage tank, so that the outer flange 15 of the cylinder and the outer flange 16 of the water storage tank are respectively sealed with the sealing element, thereby achieving the sealing between the cylinder 1 and the water storage tank 3.
[0040] The disassembly and assembly connection ring 17, or the filter element 2, or the water storage tank 3 is provided with an assembly part 19 for fixed assembly.
[0041] In this embodiment, the assembly part 19 is provided on the disassembly and assembly connecting ring 17, and the entire water purifier can be fixedly assembled on the ground, countertop, or wall through the assembly part 19.
[0042] The raw water inlet 5 is located on the side wall of the filter element 2 and is far away from the drain outlet 4. The clean water outlet 7 is located on the side wall of the water storage tank 3 and is close to the air bag 6.
[0043] In this embodiment, the raw water inlet 5, the purified water outlet 7, and the sewage outlet 4 are set at different positions. At the same time, all three are provided with threaded parts to facilitate the connection and assembly between the raw water inlet 5 and the raw water end, between the purified water outlet 7 and the water outlet device, and between the sewage outlet 4 and the solenoid valve 9. This greatly simplifies the assembly process and also facilitates daily maintenance.
[0044] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A smart backwashing water purifier, comprising a cylinder (1) and a filter element (2), characterized in that: One end of the cylinder (1) is open and connected to a water storage tank (3), and the other end is provided with a drain outlet (4). The filter element (2) is installed inside the cylinder (1). The cylinder (1) is also provided with a raw water inlet (5). The water storage tank (3) is provided with an air bag (6) and a clean water outlet (7). The drain outlet (4) is provided with a drain electrical control device (8). The drain electrical control device (8) includes a solenoid valve (9) and a drain electrical control board (10). The solenoid valve (9) is connected to the drain outlet (4). The drain electrical control board (10) is electrically connected to the solenoid valve (9) and controls the solenoid valve (9) to open or close.
2. The intelligent backwashing water purifier according to claim 1, characterized in that: The sewage discharge electrical control device (8) includes a housing (11), the sewage discharge electrical control board (10) is disposed on the housing (11) and electrically connected to the valve body of the solenoid valve (9), and the connecting pipe of the solenoid valve (9) is connected to the sewage outlet (4).
3. The intelligent backwashing water purifier according to claim 2, characterized in that: The sewage discharge electrical control device (8) also includes a control panel (12), which is disposed on the outer casing (11) and electrically connected to the sewage discharge electrical control board (10).
4. The intelligent backwashing water purifier according to claim 2, characterized in that: The outer casing (11) is provided with a sewage discharge electrical control fixing part for fixed assembly.
5. The intelligent backwashing water purifier according to any one of claims 1-4, characterized in that: The cylinder (1) is cylindrical and has an open end (13) at the end away from the drain (4). The filter element (2) is placed inside the cylinder (1) through the open end (13). The water tank (3) is cylindrical and has an open end (14) at its end. The airbag (6) is placed inside the water tank (3) through the open end (14). The open end (13) of the cylinder and the open end (14) of the water tank are connected to each other.
6. The intelligent backwashing water purifier according to claim 5, characterized in that: The outer periphery of the cylinder opening (13) is provided with an outer flange (15), and the outer periphery of the water storage tank opening (14) is provided with an outer flange (16). The outer flange (15) of the cylinder and the outer flange (16) of the water storage tank correspond to each other, and a disassembly and assembly connecting ring (17) is provided between them. The outer flange (15) of the cylinder and the outer flange (16) of the water storage tank are disassembled and assembled through the disassembly and assembly connecting ring (17).
7. The intelligent backwashing water purifier according to claim 6, characterized in that: The filter element (2) is provided with a positioning ring (18) at its end, and is positioned between the outer flange (15) of the cylinder and the outer flange (16) of the water storage tank through the positioning ring (18). The air bag (6) is movably disposed inside the water storage tank (3).
8. The intelligent backwashing water purifier according to claim 7, characterized in that: A sealing element is provided between the outer flange (15) of the cylinder and the outer flange (16) of the water storage tank, or between the disassembly and assembly connecting ring (17) and the outer flange (15) of the cylinder, or between the disassembly and assembly connecting ring (17) and the outer flange (16) of the water storage tank, and the sealing elements are mutually sealed and cooperated.
9. The intelligent backwashing water purifier according to claim 7, characterized in that: The disassembly and assembly connection ring (17), the filter element (2), or the water storage tank (3) is provided with an assembly part (19) for fixed assembly.
10. The intelligent backwashing water purifier according to claim 1, characterized in that: The raw water inlet (5) is located on the side wall of the filter element (2) and is far away from the drain outlet (4), while the purified water outlet (7) is located on the side wall of the water storage tank (3) and is close to the air bag (6).
Citation Information
Patent Citations
Novel backwashing filtering water purifier
CN117861282A