Purification equipment with liquid level detection structure

CN224723040UActive Publication Date: 2026-09-08XIAMEN BAILIN WATER PURIFICATION TECH CO LTD
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Patent Information

Application Number
CN202521753741.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-09-08
Estimated Expiration
2035-08-18

AI Technical Summary

Technical Problem

例如,高浓度的原水容易造成RO膜滤芯污堵,影响净水效果;同时,泵、阀等关键部件可能因水质恶化而出现卡死、不出水等故障,最终导致整机寿命大幅缩短

Benefits of technology

[0016] This utility model provides a purification device with a liquid level detection structure, which has the following advantages: Firstly, the independent liquid level detection structures in the wastewater chamber and the raw water chamber can monitor the changes in the liquid levels of wastewater and raw water in real time, and feed back signals to the water purifier control system via a control switch, realizing the automatic start-up and shutdown function of the device. Secondly, the first connecting part in the wastewater chamber is detachable, facilitating the cleaning of dirt accumulated after long-term use and improving the hygiene performance of the device. Thirdly, the float and control switch use common commercial materials, eliminating the need for custom-made special-shaped materials and reducing the overall cost of the machine.

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Abstract

The utility model provides a purification equipment with liquid level detection structure, especially relate to a water purifying device that realizes wastewater and raw water separation management through liquid level detection, it includes water purifier and water tank, is equipped with the baffle in water tank and is divided into wastewater cavity and raw water cavity, two cavities are equipped with float ball type liquid level detection structure and control switch respectively, realize automatic start -stop function through signal feedback to water purifier control system. The utility model can effectively avoid the equipment failure caused by the concentration increase of raw water due to the wastewater not being poured in time, prolong the service life of equipment, improve the operation convenience and sanitary performance simultaneously.
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Description

Technical Field

[0001] This utility model relates to a purification device with a liquid level detection structure. Background Technology

[0002] With the improvement of people's living standards and the enhancement of health awareness, water purification equipment is being used more and more widely in homes and offices. Currently, countertop water purifiers are favored by consumers due to their advantages of not being limited by water source and their convenient installation. These devices can typically be placed in living rooms, bedrooms, and other similar locations, filtering water from the source tank to provide users with clean drinking water.

[0003] However, existing countertop water purifiers have significant problems in actual use. Their raw water tanks are usually located on the outside of the device for easy water source replacement, but wastewater generated during filtration often flows directly back into the raw water tank. Many users do not empty the wastewater promptly, instead adding new raw water directly to the tank, causing the wastewater to mix with the raw water. This practice leads to a continuous increase in the concentration of impurities in the raw water, causing a series of problems. For example, high-concentration raw water can easily clog the RO membrane filter, affecting the purification effect; at the same time, key components such as pumps and valves may malfunction due to water quality deterioration, resulting in jamming or no water output, ultimately significantly shortening the lifespan of the entire machine. Furthermore, existing equipment lacks an effective liquid level detection mechanism, failing to promptly remind users to dispose of wastewater or stop the purification process, further exacerbating the frequency and severity of the aforementioned problems. Summary of the Invention

[0004] This utility model discloses a purification device with a liquid level detection structure, which aims to solve the problems mentioned above.

[0005] The present invention adopts the following solution:

[0006] A purification device with a liquid level detection structure is characterized in that it includes a water purifier capable of filtering raw water and a water tank; the water tank is equipped with a partition that divides the water tank into a wastewater chamber and a raw water chamber; a first connecting member is located in the wastewater chamber, the first connecting member being able to communicate with the wastewater chamber, a first float ball is disposed in the first connecting member, the first float ball being able to move within the first connecting member according to the wastewater level, and a first control switch adapted to the first float ball, the first control switch being able to control the water purifier to stop working.

[0007] In this embodiment of the utility model, a cover is also included, which can be disposed above the wastewater chamber, the first connector can be connected to the cover, and the first control switch can be disposed below the cover.

[0008] In this embodiment of the present invention, a notch is provided on the side wall of the first connector so that a spring piece is formed on the first connector, a snap-fit ​​block is provided on the spring piece, and a snap-fit ​​interface is provided on the cover. The snap-fit ​​block can snap into the snap-fit ​​interface so as to fix the first connector under the cover.

[0009] In this embodiment of the utility model, the spring sheet is further provided with a limiting block, which is disposed below the snap-fit ​​block; when the snap-fit ​​block is snapped into the snap-fit ​​interface, the limiting block can abut against the lower end face of the cover, and the cover and / or the first connecting member are detachably disposed above the cover.

[0010] In this embodiment of the utility model, the cover is provided with a slot facing downwards, the slot can be inserted into the partition, so that the cover can be detachably fixed in the water tank; the cover can partially or fully cover the upper opening of the wastewater chamber.

[0011] In this embodiment of the present invention, a second connector is provided at the bottom of the raw water tank. The second connector is connected to the raw water cavity. A second float is provided inside the second connector. The second float can move within the second connector with the raw water level. The present invention also includes a second control switch that is compatible with the second float. The second control switch can control the water purifier to start working.

[0012] In this embodiment of the invention, a silicone cap is provided above the second connector to prevent the second float from detaching from the second connector.

[0013] In this embodiment of the present invention, the bottom of both the raw water chamber and the wastewater chamber are provided with an opening that can be connected to the water purifier, and a filter screen is provided at the opening.

[0014] In this embodiment of the utility model, a handle is also included, the two ends of which can be rotatably connected to the side wall of the water tank.

[0015] In this embodiment of the present invention, the first control switch is a proximity switch. When the wastewater in the wastewater chamber reaches a high level, the float contacts the proximity switch signal, and the water purifier stops purifying water.

[0016] This utility model provides a purification device with a liquid level detection structure, which has the following advantages: Firstly, the independent liquid level detection structures in the wastewater chamber and the raw water chamber can monitor the changes in the liquid levels of wastewater and raw water in real time, and feed back signals to the water purifier control system via a control switch, realizing the automatic start-up and shutdown function of the device. Secondly, the first connecting part in the wastewater chamber is detachable, facilitating the cleaning of dirt accumulated after long-term use and improving the hygiene performance of the device. Thirdly, the float and control switch use common commercial materials, eliminating the need for custom-made special-shaped materials and reducing the overall cost of the machine.

[0017] Furthermore, this invention effectively avoids the mixing of wastewater and raw water through the independent design of the wastewater chamber and the raw water chamber. When the wastewater level in the wastewater chamber reaches a high level, the first float triggers the first control switch, stopping the water purifier and reminding the user to dispose of the wastewater promptly. Similarly, when the raw water level in the raw water chamber drops to a low level, the second float triggers the second control switch, restarting the water purifier and ensuring a sufficient supply of raw water. This design not only extends the service life of the equipment but also improves its operating efficiency and reliability.

[0018] In summary, this invention achieves effective separation and management of wastewater and raw water through independent liquid level detection structures for the wastewater and raw water chambers, combined with a float-type liquid level detection and control switch design. This solves the equipment malfunction problem in existing technologies where wastewater is not promptly discharged, leading to increased raw water concentration. Furthermore, the equipment features a simple design and convenient operation, improving user experience and the equipment's hygienic performance. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a top view of the water tank in an embodiment of this utility model.

[0021] Figure 2 This is a cross-sectional view of the water tank in an embodiment of this utility model.

[0022] Figure 3 This is an exploded view of the water tank in an embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the first liquid level detection structure in an embodiment of this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments.

[0025] Referring to the accompanying drawings, the overall structure of this utility model includes a water tank 1, a partition 2, a wastewater chamber 3, a raw water chamber 4, and the main body of the water purifier (not shown in the drawings). The water tank 1 is divided into a wastewater chamber 3 and a raw water chamber 4 by the partition 2. Each chamber is independently equipped with a float-type liquid level detection structure. The entire purification device also includes control switches, including a first liquid level detection structure and a second liquid level detection structure. The first liquid level detection structure controls the water purifier to stop producing water, and the second liquid level detection structure controls the addition of water to the raw water chamber. The raw water chamber is connected to the raw water inlet of the water purifier, and the wastewater chamber is connected to the wastewater outlet of the water purifier. A handle 17 is provided on the top of the water tank 1. The two ends of the handle 17 are rotatably connected to the side wall of the water tank via pivots, facilitating user handling of the equipment.

[0026] The wastewater chamber 3 has a liquid level detection structure. A first connecting piece 5 is installed inside the wastewater chamber 3 and connected to the cover 8. A first float 6 is installed inside the first connecting piece 5, which can move up and down within the first connecting piece 5 according to changes in the wastewater level. When the wastewater level reaches a preset high level, the first float 6 moves upward and contacts a first control switch (not shown in the figure), triggering the operation of the first control switch. The first control switch is a proximity switch, which is connected to the entire control system of the water purification equipment via a signal line. Upon receiving a signal, the control system stops the water purifier from operating, thereby preventing wastewater backflow or overflow from damaging the equipment. The proximity switch can be electrically connected to the control panel of the water purification equipment, and then electrically connected to the pump or other components of the water purifier to stop their operation, ultimately controlling the water purifier to stop producing water.

[0027] To facilitate cleaning of the wastewater chamber 3, the first connector 5, the first float, and the cover 8 are designed to be detachable for easy cleaning. The size of the cover is adjustable, allowing the upper opening of the wastewater chamber to be partially or fully covered. The fully covered cover has a pouring mechanism for easy wastewater discharge. The cover can be made of two relatively flip-out pieces, achieving partial coverage when closed and full coverage when unfolded. The cover and the water tank are also detachably connected. Specifically, the first connector 5 has two parallel notches 18 on its side wall, and a spring piece 9 is formed between the two notches on the side wall of the connector. A snap-fit ​​block 10 is mounted on the spring piece 9 to engage with the snap-fit ​​interface 11 on the cover 8. A guide slope is positioned above the snap-fit ​​block. When the snap-fit ​​block 10 is engaged in the snap-fit ​​interface 11, the limiting block 12 on the spring piece 9 abuts against the lower end face of the cover 8, ensuring the stability of the first connector 5. In addition, the cover 8 is provided with a downward-facing slot 13, which can be inserted into the partition 2, allowing the cover 8 to be detachably fixed inside the water tank 1. Furthermore, the cover is equipped with a silicone pad 19 inside the slot, making installation simple, disassembly convenient, and washable.

[0028] The liquid level detection structure of the raw water chamber 4 is similar to that of the wastewater chamber. The second connector 14 is installed at the bottom of the raw water chamber 4 and is connected to it. A second float 15 is installed inside the second connector 14. The second float 15 can move up and down within the second connector 14 as the raw water level changes. The second connector can be integrated with the water tank. When the raw water level drops to a preset low level, the second float 15 moves downward and contacts the second control switch (not shown in the figure), triggering the second control switch. This second control switch is located at the bottom of the raw water chamber, above the liquid level at the inlet. The second control switch is also a proximity switch, connected to the water purifier control system via a signal line. Upon receiving a signal, it controls the water inlet device to replenish the raw water supply. To prevent the second float 15 from detaching from the second connector 14, a silicone cover 16 is installed on top of the second connector 14. The silicone cover 16 fits tightly against the second connector 14 through elastic deformation.

[0029] Both the first and second connectors have guide grooves, allowing the two floats to move up and down within these grooves.

[0030] Both the first and second control switches are located inside the purification equipment, but can also be located outside the water tank (such as on the outer wall of the water tank) to facilitate wiring connections. Magnets can be installed on the two floats, forming a Hall effect switch with the two control switches to control the entire machine.

[0031] Both the wastewater chamber 3 and the raw water chamber 4 have openings at their bottoms, and filter screens 7 are installed at these openings. Filter screens 7 are used to filter solid particles and other impurities in the water, preventing them from entering the water purifier and causing blockage or damage to key components.

[0032] In actual operation, the working principle of this utility model is as follows: S1 When the user starts the water purifier, the raw water in the raw water chamber 4 is transported to the water purifier for filtration through the inlet. The filtered wastewater is discharged into the wastewater chamber 3 through the pipe, while the purified water is stored or directly supplied to the user. S2 In the wastewater chamber 3, as the wastewater level gradually rises, the first float 6 rises accordingly. When the wastewater level reaches the preset high level, the first float 6 contacts the first control switch, triggering the first control switch to generate an electrical signal, which is transmitted to the water purifier control system through the signal line. After receiving the signal, the control system immediately stops the operation of the water purifier and issues a fault prompt to remind the user to dispose of the wastewater in time. S3 After the user pours out the wastewater, the wastewater level drops, and the first float 6 also drops and disengages from the first control switch, allowing the water purifier to resume normal operation. S4 In the raw water chamber 4, as the raw water is continuously consumed, the raw water level gradually drops, and the second float 15 drops accordingly. When the raw water level drops to the preset low level, the second float 15 contacts the second control switch, triggering the second control switch to generate an electrical signal, which is transmitted to the water purifier control system via a signal line. Upon receiving the signal, the control system initiates the replenishment of raw water supply. This invention achieves separate management of wastewater and raw water, effectively preventing equipment malfunctions caused by increased raw water concentration due to untreated wastewater.

[0033] This invention not only solves the problem of equipment malfunction caused by increased raw water concentration due to untimely wastewater discharge in existing technologies, but also brings significant technical benefits. First, the independent liquid level detection structures of the wastewater chamber 3 and the raw water chamber 4 can monitor the changes in wastewater and raw water levels in real time, and feed back signals to the water purifier control system via a control switch, enabling automatic start-up and shutdown of the equipment. Second, the first connecting piece 5 inside the wastewater chamber 3 is detachable, facilitating the cleaning of dirt accumulated over long-term use and improving the hygiene performance of the equipment, while the second connecting piece can be fixed inside the raw water chamber, integrally manufactured with the water tank. Third, the float and control switch use commercially available materials, eliminating the need for custom-shaped materials and reducing the overall cost. Finally, the overall design of the equipment is simple, easy to operate, and provides a good user experience.

[0034] In summary, this invention, through independent liquid level detection structures for the wastewater chamber 3 and the raw water chamber 4, combined with a float-type liquid level detection and control switch design, achieves effective separation and management of wastewater and raw water, solving the equipment malfunction problem caused by the increased concentration of raw water due to the failure to promptly dispose of wastewater, which is present in existing technologies. Furthermore, the equipment features a simple design and convenient operation, improving user experience and the hygienic performance of the equipment.

[0035] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A purification device with a liquid level detection structure, characterized in that, It includes a water purifier and a water tank capable of filtering raw water; the water tank is equipped with a partition that divides the water tank into a wastewater chamber and a raw water chamber; The wastewater chamber contains a first connecting member that communicates with the wastewater chamber. The first connecting member is equipped with a first float that can move within the first connecting member according to the wastewater level. The device also includes a first control switch that is compatible with the first float and can control the water purifier to stop working.

2. The purifier having a liquid level detection structure according to claim 1, characterized in that, It also includes a cover that can be disposed above the wastewater chamber, the first connector that can be connected to the cover, and the first control switch that can be disposed below the cover.

3. The purification apparatus having a liquid level detection structure according to claim 2, characterized by, The first connector has a notch on its side wall to form a spring piece, the spring piece has a snap-fit ​​block, the cover has a snap-fit ​​interface, and the snap-fit ​​block can snap into the snap-fit ​​interface to fix the first connector under the cover.

4. The purification apparatus having a liquid level detection structure according to claim 3, characterized by, The spring is also equipped with a limiting block, which is located below the snap-fit ​​block. When the snap-fit ​​block is snapped into the snap-fit ​​interface, the limiting block can abut against the lower end face of the cover. The cover and / or the first connector are detachably arranged above the cover.

5. The purifier having a liquid level detection structure according to claim 4, characterized in that, The cover is provided with a downward-facing slot, which can be inserted into a partition, allowing the cover to be detachably fixed inside the water tank; the cover can partially or fully cover the upper opening of the wastewater chamber.

6. The purification apparatus having a liquid level detection structure according to any one of claims 1 to 5, characterized by The bottom of the raw water tank is equipped with a second connector that can communicate with the raw water chamber. The second connector is equipped with a second float that can move within the second connector according to the raw water level. The tank also includes a second control switch that can be adapted to the second float and can control the water purifier to start working.

7. The purification apparatus having a liquid level detection structure according to claim 6, characterized by, A silicone cap is provided on the top of the second connector to prevent the second float from detaching from the second connector.

8. The purification apparatus having a liquid level detection structure according to claim 7, characterized by, The bottom of both the raw water chamber and the wastewater chamber is equipped with an opening that can be connected to the water purifier, and a filter screen is installed at the opening.

9. The purification apparatus having a liquid level detection structure according to claim 8, characterized by, It also includes a handle, the two ends of which can be rotatably connected to the side wall of the water tank.

10. The purification apparatus having a liquid level detection structure according to any one of claims 7 to 9, characterized by, The first control switch is a proximity switch. When the wastewater in the wastewater chamber reaches a high level, the float makes contact with the proximity switch signal, and the water purifier stops purifying water.