Filtering barrel structure of water softener
By adding a carbon fiber filter element to the water softener's filter tank, the problems of increased sodium ions and contaminant removal are solved, achieving efficient water quality improvement and meeting the needs of healthy water use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG RUNXIN ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-21
AI Technical Summary
Existing water softeners increase the sodium content in the water during the sodium ion replacement process, which cannot effectively remove bacteria, viruses and organic matter, leading to health risks, and the filtration effect is poor.
A carbon fiber filter cartridge is added to the filter tank structure of the water softener. After passing through resin filtration, the water enters the carbon fiber filter cartridge to remove sodium ions and adsorb residual chlorine, odors, pigments and organic matter.
It effectively removes sodium ions, improves water quality, removes pollutants from the water, meets health requirements, and has a simple and compact structure that is easy to assemble.
Smart Images

Figure CN224530685U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a water softener, specifically to a filtration structure for a water softener. Background Technology
[0002] Water softeners primarily remove calcium and magnesium ions from water using ion exchange resins or nanocrystal technology, reducing water hardness. Compared to tap water, soft water has a significantly better taste and feel. It has higher oxygen content and lower hardness, effectively preventing kidney stones, reducing the burden on the heart and kidneys, and promoting overall health. Soft water is ideal for bathing, shampooing, and face washing, leaving skin smooth and soft, especially beneficial for infants' skin. It can also make investments in beauty, hair care, and skincare products more effective.
[0003] Most household water softeners use ion exchange technology, which involves functional ions on the resin exchanging with calcium and magnesium ions in the water, thereby adsorbing excess calcium and magnesium ions and removing limescale (calcium carbonate or magnesium carbonate).
[0004] Due to cost considerations, most water softeners currently use sodium ions to replace calcium and magnesium ions, a process that increases the sodium content of the water. Long-term consumption of water with high sodium content can increase the risk of cardiovascular diseases such as hypertension, coronary heart disease, and cerebral thrombosis. For individuals with health conditions requiring sodium intake control, such as those with hypertension, drinking softened water may increase health risks. Furthermore, existing water softeners cannot remove bacteria, viruses, and organic matter, making the water unsuitable for direct consumption.
[0005] Therefore, a new water softener filtration technology needs to be designed to remove the displaced sodium ions while improving water quality. Summary of the Invention
[0006] The technical problem to be solved by this utility model is to provide a water softener filter tank structure that is simple and reasonable in structure and has a good filtration effect, which can effectively remove sodium ions and residual chlorine and improve water quality.
[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a filter barrel structure for a water softener, including a barrel body and a barrel cover. Resin is provided inside the barrel body, and an inlet connector and an outlet connector are installed on the barrel cover. The barrel cover has an inlet channel and an outlet channel corresponding to the inlet connector and the outlet connector. The feature is that a central tube is vertically provided inside the barrel body. The upper end of the central tube is connected to the barrel cover and communicates with the outlet channel. The lower end of the central tube is connected to the carbon fiber filter element. Resin is arranged around the central tube and the carbon fiber filter element and communicates with the inlet channel. Raw water enters the barrel body, is filtered by the resin, and then enters the carbon fiber filter element for filtration before being discharged upward through the central tube from the outlet connector.
[0008] As an improvement, the upper and lower ends of the carbon fiber filter element are respectively provided with an upper filter element cover and a lower filter element cover. The bottom of the barrel is provided with a shallow circular groove for the lower filter element cover to be inserted and positioned. The upper end of the upper filter element cover is provided with an insertion section for insertion and positioning with the lower end of the central tube. The middle part of the upper filter element cover and the insertion section are provided with through holes to connect the central tube with the central hole of the carbon fiber filter element.
[0009] Furthermore, the insertion section is cylindrical, and two annular grooves are formed on the outer wall of the insertion section. A first sealing ring is embedded in the annular groove. The insertion section of the filter element cover is inserted into the central tube and sealed by the first sealing ring against the inner wall of the central tube.
[0010] Furthermore, the barrel body is a fiberglass barrel body, and the barrel lid is a manual lid. The barrel lid is attached to the upper end of the barrel body by means of a threaded connection. A cylindrical structure is protruding in the middle of the lower end face of the barrel lid for the upper end of the central tube to be inserted into. The upper end of the central tube is inserted into the cylindrical structure and positioned by the upper distribution connector.
[0011] Furthermore, the upper distribution connector is annular, and the outer sleeve of the central tube is provided with a first sealing ring that abuts against the lower stepped surface of the cylindrical structure. The upper distribution connector is sleeved on the outside of the central tube and abuts against the lower end of the bucket lid and the cylindrical structure. The upper distribution connector is fixed to the bottom of the bucket lid by screws.
[0012] Finally, the upper left and right sides of the bucket lid are provided with water outlet and water inlet. The water outlet connector and water inlet connector are respectively installed at the water outlet and water inlet positions and fixed by clamps. The upper end of the cylindrical structure is connected to the water outlet channel. The water inlet channel is located on the right side of the cylindrical structure. The right side of the upper distribution connector is provided with a water inlet hole corresponding to the water inlet channel, which is connected to the cavity inside the bucket.
[0013] Compared with existing technologies, the advantages of this invention are: the addition of a carbon fiber filter element allows water to pass through the carbon fiber filter element after resin filtration, removing the displaced sodium ions. Simultaneously, it efficiently adsorbs and removes various pollutants in the water, including residual chlorine, odors, pigments, and organic matter. This invention has a simple and reasonable structure, effectively improving filtration efficiency, removing sodium ions, enhancing water quality, and producing soft water that meets people's health needs. Its simple and compact structure makes it easy to assemble and manufacture. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0015] Figure 2 This is an exploded view of an embodiment of the present utility model. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0017] like Figure 1 , 2 As shown, a filter tank structure for a water softener includes a tank body 1 and a tank cover 2. The tank body 1 contains resin 5. The tank cover 2 is equipped with an inlet connector 6 and an outlet connector 7. The tank cover 2 contains an inlet channel A and an outlet channel B corresponding to the inlet connector 6 and the outlet connector 7. A central tube 3 is vertically arranged inside the tank body 1. The upper end of the central tube 3 is connected to the tank cover 2 and communicates with the outlet channel B. The lower end of the central tube 3 is connected to a carbon fiber filter element 4. Inside the tank body, resin 5 is arranged around the central tube 3 and the carbon fiber filter element 4 and communicates with the inlet channel A. Raw water enters the tank body 1, is filtered by the resin 5, then enters the carbon fiber filter element 4 for filtration, and is discharged upward through the central tube 3 from the outlet connector 7.
[0018] The specific structure is as follows: The upper and lower ends of the carbon fiber filter element 4 are respectively provided with an upper filter element cover 41 and a lower filter element cover 42. A shallow circular groove is provided at the bottom of the barrel 1 for inserting and positioning the lower filter element cover 42. The upper end of the upper filter element cover 41 has a protruding insertion section 411 that is inserted and positioned with the lower end of the central tube 3. A through hole is provided in the middle of the upper filter element cover 41 and on the insertion section 411 to connect the central tube 3 with the central hole of the carbon fiber filter element 4. The insertion section 411 is cylindrical, and two annular grooves 412 are formed on its outer wall. A first sealing ring 8 is embedded in the annular grooves 412. The insertion section 411 of the upper filter element cover 41 is inserted into the central tube 3 and sealed against the inner wall of the central tube 3 by the first sealing ring 8.
[0019] The barrel body 1 is a fiberglass barrel, and the barrel lid 2 is a manual lid. The barrel lid 2 is threaded onto the upper end of the barrel body 1. A cylindrical structure 21 is protruding from the middle of the lower end face of the barrel lid 2 for the upper end of the central tube 3 to be inserted. The upper end of the central tube 3 is inserted into the cylindrical structure 21 and positioned by the upper distribution connector 10. The upper distribution connector 10 is annular. The outer sleeve of the central tube 3 is provided with a first sealing ring 8 that abuts against the lower stepped surface of the cylindrical structure 21. The upper distribution connector 10 is sleeved on the outside of the central tube 3 and abuts against the lower end of the barrel lid 2 and the cylindrical structure 21. The upper distribution connector 10 is fixed to the bottom of the barrel lid 2 by screws. The upper left and right sides of the bucket lid 2 are provided with water outlet and water inlet. Water outlet connector 7 and water inlet connector 6 are respectively installed at the water outlet and water inlet positions and fixed by clamp 20. The upper end of the cylindrical structure 21 is connected to the water outlet channel B. The water inlet channel A is set on the right side of the cylindrical structure 21. The right side of the upper distribution connector 10 is provided with a water inlet hole corresponding to the water inlet channel A, which is connected to the inner cavity of the bucket body 1.
[0020] Working principle: Raw water enters the fiberglass tank 1, is filtered by resin 5, and then enters the carbon fiber filter element 4 for further filtration before being discharged as purified water and supplied to various branches.
[0021] Thanks to the addition of carbon fiber filter element 4, which can remove sodium ions produced by the water softener, it can efficiently adsorb and remove various pollutants in the water. It also performs well in removing residual chlorine, odors, pigments and organic matter in the water, further improving the quality of the water.
[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A filter tank structure for a water softener, comprising a tank body and a tank lid, wherein resin is disposed within the tank body, an inlet connector and an outlet connector are installed on the tank lid, and an inlet channel and an outlet channel corresponding to the inlet connector and the outlet connector are provided inside the tank lid, characterized in that: The barrel is vertically equipped with a central tube. The upper end of the central tube is connected to the barrel lid and is connected to the water outlet channel. The lower end of the central tube is connected to the carbon fiber filter element. Resin is arranged around the central tube and the carbon fiber filter element and is connected to the water inlet channel. Raw water enters the barrel and is filtered by the resin, then enters the carbon fiber filter element for filtration, and then flows upward through the central tube and is discharged from the water outlet connector.
2. The filter barrel structure according to claim 1, characterized in that: The carbon fiber filter element has an upper cover and a lower cover at its upper and lower ends, respectively. The bottom of the barrel has a shallow circular groove for the lower cover to be inserted and positioned. The upper end of the upper cover has a protruding insertion section for insertion and positioning with the lower end of the central tube. The middle part of the upper cover and the insertion section have through holes to connect the central tube with the central hole of the carbon fiber filter element.
3. The filter barrel structure according to claim 2, characterized in that: The insertion section is cylindrical, and two annular grooves are formed on the outer wall of the insertion section. A first sealing ring is embedded in the annular groove. The insertion section of the filter element cover is inserted into the central tube and is sealed by the first sealing ring against the inner wall of the central tube.
4. The filter barrel structure according to claim 1, 2, or 3, characterized in that: The barrel body is made of fiberglass, and the lid is a manual lid. The lid is attached to the upper end of the barrel body by means of a threaded connection. A cylindrical structure is protruding in the middle of the lower end face of the lid for the upper end of the central tube to be inserted. The upper end of the central tube is inserted into the cylindrical structure and positioned by the upper distribution connector.
5. The filter barrel structure according to claim 4, characterized in that: The upper distribution connector is annular. The outer sleeve of the central tube is provided with a first sealing ring that abuts against the lower stepped surface of the cylindrical structure. The upper distribution connector is sleeved on the outside of the central tube and abuts against the lower end of the bucket lid and the cylindrical structure. The upper distribution connector is fixed to the bottom of the bucket lid by screws.
6. The filter barrel structure according to claim 5, characterized in that: The upper left and right sides of the bucket lid are provided with water outlet and water inlet. The water outlet connector and water inlet connector are respectively installed at the water outlet and water inlet positions and fixed by clamps. The upper end of the cylindrical structure is connected to the water outlet channel. The water inlet channel is located on the right side of the cylindrical structure. The right side of the upper distribution connector is provided with a water inlet hole corresponding to the water inlet channel, which is connected to the cavity inside the bucket.