Filter with descaling function

Abstract

The utility model discloses a filter with a descaling function, which comprises a filter element, a housing and a base, the base is provided with a water inlet channel and a water outlet channel, a purified water flow channel is arranged in the filter element, a connecting channel is arranged at the bottom of the filter element, the water inlet channel is communicated with an inner cavity of the housing through the connecting channel, and the water outlet channel is communicated with the inner cavity of the housing through the connecting channel. The vortex support and the rotating support are respectively sleeved on the filter element, the vortex support is positioned below the rotating support, a flow guide structure for forming vortex is arranged in the vortex support, an inclined wing panel is arranged at the lower end of the rotating support, and a plurality of scraping sheets are arranged on the rotating support. In the using process, water flow passes through the vortex support and then is converted into vortex water, the vortex water flows out of the vortex support and then impacts the inclined fins and enables the rotary support to rotate, finally, the scraping pieces scrape off dirt on the surface of a filter screen of the filter element when rotating synchronously along with the rotary support, and therefore the filter element is descaled in the using process, and the service life of the filter element is prolonged. The service life of the filter element is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to a filter used on a smart toilet, and more particularly to a filter with a descaling function. Background Technology

[0002] Most smart toilets on the market currently use PP cotton filters. Depending on the water quality in different regions, these PP cotton filters need to be replaced periodically, significantly increasing maintenance costs for users. Meanwhile, with increasing global environmental awareness, consumers are more accepting of products that reduce waste and lower operating costs. Therefore, when choosing a smart toilet, consumers prefer models with longer filter replacement cycles and lower maintenance costs, and some even hope that the filter will never need to be replaced. Utility Model Content

[0003] This utility model provides a filter with descaling function, effectively extending the service life of the filter element and overcoming the shortcomings of the prior art. The technical solution adopted by this utility model to solve its technical problem is as follows:

[0004] A filter with descaling function includes a filter element, a housing covering the filter element, and a base connected to the lower end of the housing and enclosing the filter element inside the housing. The base has an inlet channel and an outlet channel. The filter element has a clean water flow channel communicating with the outlet channel. Water flows through the filter element and then into the clean water flow channel before flowing out from the outlet channel. The bottom of the filter element has a connecting channel, and the inlet channel is connected to the inner cavity of the housing by the connecting channel. The filter element also includes a vortex support and a rotating support respectively fitted on the filter element. The vortex support is located below the rotating support and has a flow guiding structure for forming a vortex. The lower end of the rotating support has an inclined vane and several scrapers. Water flowing from the connecting channel enters the vortex support, forms a vortex flow through the flow guiding mechanism, and then flows out and pushes the inclined vane to rotate the rotating support. The scrapers rotate under the drive of the rotating support to scrape off the dirt on the surface of the filter element.

[0005] In a preferred embodiment: the vortex support is laterally aligned with the outlet end of the connecting channel, and after the water flows laterally into the vortex support, it forms a vortex-shaped water flow that is output from above the vortex support.

[0006] In a preferred embodiment: the top of the base extends into the housing, and a deposition cavity is formed between the outer wall of the top of the base and the inner wall of the housing, the deposition cavity being located below the vortex support.

[0007] In a preferred embodiment, the housing is a transparent structure.

[0008] In a preferred embodiment: the water inlet channel is located in the middle of the base and extends vertically, the water outlet channel is arranged around the water inlet channel, the base includes an upper base and a lower base stacked together, the side wall of the water inlet channel of the upper base is connected to the water inlet end of the connecting channel of the filter element, and a sedimentation cavity is formed between the outer side wall of the water outlet channel of the upper base and the inner wall of the cover, the sedimentation cavity being located below the vortex support.

[0009] In a preferred embodiment, the system further includes an ultraviolet sterilization module. The lower base has a water outlet and a mounting hole on its side wall. Both the water outlet and the mounting hole are connected to the water outlet channel of the lower base. The ultraviolet sterilization module is disposed in the mounting hole, which is close to the water outlet.

[0010] In a preferred embodiment, the device further includes an electrolytic sterilization module, which includes a PCB board, an anode plate, and a cathode plate. The side wall of the lower base is provided with a placement box for placing the PCB board, and the anode plate and cathode plate are disposed in the water outlet channel of the lower base.

[0011] In a preferred embodiment: the bottom wall of the water outlet channel of the lower base is provided with limiting ribs corresponding to the anode plate and the cathode plate, and the electrolytic sterilization module further includes a pressure cap, which is disposed in the water outlet channel of the lower base, and the lower surface of the pressure cap is also provided with limiting ribs corresponding to the anode plate and the cathode plate.

[0012] In a preferred embodiment: the filter element includes a filter screen, a filter element support, a top cover, a compression cap, and a spring. The filter screen is wrapped around the outer periphery of the filter element support. The purified water flow channel is disposed inside the filter element support. The connecting channel is disposed at the bottom of the filter element support. A variable pressure cavity is provided inside the filter element support. An open opening is formed above the variable pressure cavity. The top cover is connected to the top of the filter element support. The compression cap is vertically movable and accommodated in the variable pressure cavity. A sealing ring is provided between the compression cap and the side wall of the variable pressure cavity. The spring pushes the compression cap upward and causes the compression cap to move upward and press against the top cover. A liquid accumulation cavity is formed between the top cover and the compression cap.

[0013] In a preferred embodiment, a one-way valve is also provided in the water inlet channel.

[0014] Compared with the prior art, this technical solution has the following advantages:

[0015] 1. During use, the water flow is converted into vortex water after passing through the vortex support. The vortex water impacts the inclined vanes after exiting the vortex support and causes the rotating support to rotate. Finally, the scraper blades rotate synchronously with the rotating support and scrape off the dirt on the surface of the filter element and screen. Therefore, the filter element is descaled at the same time during use, which effectively extends the service life of the filter element. In fact, if the filter element uses a metal filter screen, it can achieve the effect of never having to replace the filter element.

[0016] 2. After the dirt falls, it can be stored in the sedimentation chamber. Users can open the cover periodically to empty the dirt. The transparent cover allows direct observation of the amount of dirt stored, making it convenient to use.

[0017] 3. The ultraviolet sterilization module or the electrolysis sterilization module is used to sterilize the filtered water and improve the quality of the effluent.

[0018] 4. The limiting ribs facilitate the installation and positioning of the anode and cathode plates.

[0019] 5. The compression cap can move up and down within the variable displacement chamber, and the sealing ring between the compression cap and the side wall of the variable displacement chamber can prevent water from entering the variable displacement chamber. Therefore, when the external temperature is too low and the water inside the filter freezes, the expansion of the water volume can squeeze the compression cap, and the compression cap can overcome the elastic force of the spring and move down. In other words, the compression cap can move down to make room, thereby preventing the filter from freezing and cracking. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 An exploded perspective view of a first embodiment of a filter with descaling function is shown.

[0022] Figure 2 It is illustrated Figure 1 The image shows an axial sectional view of a filter with descaling function.

[0023] Figure 3 It is illustrated Figure 1 The diagram shows the structure of the filter element when the water inside the filter with descaling function freezes.

[0024] Figure 4 It is illustrated Figure 1 The filter with descaling function shown is a radial cross-sectional view at the base location.

[0025] Figure 5 An exploded perspective view of a second embodiment of a filter with descaling function is shown.

[0026] Figure 6 It is illustrated Figure 5 The filter with descaling function shown is shown in an axial sectional view at the base position.

[0027] Figure 7 It is illustrated Figure 5 The filter with descaling function shown is a radial cross-sectional view at the base location. Detailed Implementation

[0028] Example 1

[0029] Please refer to Figures 1 to 4 A filter with descaling function includes a filter element 10, a housing 20 covering the filter element, and a base 30 connected to the lower end of the housing and enclosing the filter element inside the housing. The housing and the base are detachable. The base 30 has an inlet channel 32 and an outlet channel 34. The filter element 10 has a clean water flow channel (not shown) communicating with the outlet channel. Water flows into the housing from the inlet channel 32, is filtered by the filter element 10, enters the clean water flow channel, and then flows out from the outlet channel 34. The bottom of the filter element 10 has a connecting channel 12, which connects the inlet channel 32 to the inner cavity of the housing 20. It also includes a vortex support 40 and a rotating support 50 respectively fitted onto the filter element 10. The vortex support 40 is located below the rotating support 50. The vortex support 40 has a flow guiding structure for forming vortices. Water flows through the flow guiding structure to form vortices or rotating water flow. The flow guiding structure can be found in existing structures. The lower end of the rotating bracket 50 is provided with inclined vanes 52. After the water flow from the connecting channel 12 enters the vortex bracket 40, it forms a vortex-shaped water flow through the flow guiding mechanism and then outputs, pushing the inclined vanes 52 to rotate the rotating bracket 50. The rotating bracket is provided with several scraper blades 54. The free ends of the scraper blades 54 rest against the outer peripheral surface of the filter element. The scraper blades 54 rotate under the drive of the rotating bracket 50 to scrape away the dirt on the surface of the filter element 10.

[0030] Preferably, the scraper 54 is made of silicone.

[0031] Preferably, the vortex support 40 is laterally aligned with the water outlet end of the connecting channel 12. After the water flows laterally into the vortex support 40, it forms a vortex-shaped water flow that is output from above the vortex support 40 and directly impacts the tilting vane 52.

[0032] Preferably, the top of the base 30 extends into the housing 20, and a deposition cavity 60 is formed between the outer wall of the top of the base 30 and the inner wall of the housing 20. The deposition cavity 60 is located below the vortex support 40, and the dirt falls down and finally stays in the deposition cavity 60 through the vortex support.

[0033] Preferably, the cover 20 is a transparent structure.

[0034] Preferably, the water inlet channel 32 is located in the middle of the base 30 and extends vertically, and the water outlet channel 34 is disposed around the water inlet channel. More preferably, the base 30 includes an upper base 30-1 and a lower base 30-2 stacked together, the side wall of the water inlet channel 32 of the upper base 30-1 is connected to the water inlet end of the connecting channel 12 of the filter element 10, and the outer side wall of the water outlet channel 34 of the upper base 30-1 forms the sedimentation chamber 60 between it and the inner wall of the cover 20.

[0035] Preferably, the system further includes an ultraviolet sterilization module 70. The lower base 30-2 has a water outlet 35 and a mounting hole 36 on its side wall, with the mounting hole 36 located near the water outlet 35. Both the water outlet and the mounting hole are connected to the water outlet channel 34 of the lower base. The ultraviolet sterilization module 70 is disposed in the mounting hole 36, allowing the ultraviolet sterilization module 70 to focus on sterilizing the water surrounding the water outlet 35.

[0036] Preferably, the filter element 10 includes a filter screen 11, a filter element support 13, a top cover 14, a compression cap 15, and a spring 16. The filter screen 11 wraps around the outer periphery of the filter element support 13. The purified water flow channel is disposed within the filter element support 13, and the connecting channel 12 is disposed at the bottom of the filter element support 13. The filter element support 13 has a variable displacement cavity 17 inside, with an open opening at the top. The top cover 14 is connected to the top of the filter element support 13. The compression cap 15 is vertically movable and accommodated within the variable displacement cavity 17. A sealing ring 18 is provided between the compression cap 15 and the side wall of the variable displacement cavity 17. Thus, water can enter the filter element support through the gap between the top cover 14 and the filter element support 13 or through holes in the top cover itself. However, due to the waterproofing effect of the compression cap 15 and the sealing ring 18, water will not enter the variable displacement cavity 17 below the compression cap 15 through the compression cap 15 and the sealing ring 18. The spring 16 is disposed within the variable-shape differential cavity 17, pushing the compression cap 15 upward and causing it to press against the upper cover 14. Therefore, if the outside temperature is too low and the water freezes, the water can automatically compress the spring, thus pressing the compression cap 15 downward and preventing the filter element from bursting. More preferably, a liquid accumulation cavity 19 is formed between the upper cover 14 and the compression cap 15. This liquid accumulation cavity 19 is specifically designed to increase the area of ​​contact between the liquid and the compression cap 15, making it easier to compress the spring.

[0037] Preferably, the filter screen 11 is made of stainless steel mesh.

[0038] Preferably, it also includes a one-way valve 80 disposed in the water inlet channel 32.

[0039] Example 2

[0040] Please refer to Figures 5 to 7 The difference between Example 2 and Example 1 lies in the sterilization method. Example 1 uses ultraviolet sterilization, while Example 2 uses electrolytic sterilization. Specifically, in Example 2, an electrolytic sterilization module 90 replaces the external sterilization module. The electrolytic sterilization module 90 includes a PCB board 92, an anode plate 94, and a cathode plate 96. The side wall of the lower base 30-2 is provided with a placement box 37 for placing the PCB board 92, and the anode plate 94 and cathode plate 96 are disposed within the water outlet channel 34 of the lower base 30-2.

[0041] Preferably, the bottom wall of the water outlet channel 34 of the lower base 30-2 is provided with limiting ribs 38 corresponding to the anode and cathode plates. The electrolytic sterilization module also includes a pressure cap 98, which is disposed in the water outlet channel of the lower base. The lower surface of the pressure cap 98 is also provided with limiting ribs 99 corresponding to the anode and cathode plates. The limiting ribs 38 and 99 are used to lock the anode plate 94 and the cathode plate 96 in place.

[0042] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A filter with descaling function, comprising a filter element, a housing covering the filter element, and a base connected to the lower end of the housing and enclosing the filter element within the housing, the base having an inlet channel and an outlet channel, the filter element having a purified water flow channel communicating with the outlet channel inside, water flowing through the filter element enters the purified water flow channel and then flows out from the outlet channel, characterized in that: The filter element has a connecting channel at its bottom, and the water inlet channel is connected to the inner cavity of the cover by the connecting channel. It also includes a vortex support and a rotating support respectively fitted on the filter element. The vortex support is located below the rotating support. The vortex support has a flow guiding structure for forming a vortex. The lower end of the rotating support has an inclined vane. The rotating support has several scrapers. After the water flow output from the connecting channel enters the vortex support, it forms a vortex water flow after passing through the flow guiding mechanism and then outputs and pushes the inclined vane to rotate the rotating support. The scrapers rotate under the drive of the rotating support to scrape off the dirt on the surface of the filter element.

2. The filter with descaling function according to claim 1, characterized in that: The vortex support is horizontally aligned with the outlet end of the connecting channel. After the water flows horizontally into the vortex support, it forms a vortex-shaped water flow that is output from above the vortex support.

3. The filter with descaling function according to claim 1 or 2, characterized in that: The top of the base extends into the housing, and a deposition cavity is formed between the outer wall of the top of the base and the inner wall of the housing. The deposition cavity is located below the vortex support.

4. The filter with descaling function according to claim 3, characterized in that: The casing is a transparent structure.

5. The filter with descaling function according to claim 1, characterized in that: The water inlet channel is located in the middle of the base and extends vertically. The water outlet channel is located around the water inlet channel. The base includes an upper base and a lower base stacked together. The side wall of the water inlet channel of the upper base is connected to the water inlet end of the connecting channel of the filter element. The outer side wall of the water outlet channel of the upper base forms a sedimentation cavity between it and the inner wall of the cover. The sedimentation cavity is located below the vortex support.

6. The filter with descaling function according to claim 5, characterized in that: It also includes an ultraviolet sterilization module. The lower base has a water outlet and a mounting hole on its side wall. The water outlet and the mounting hole are both connected to the water outlet channel of the lower base. The ultraviolet sterilization module is located in the mounting hole, which is close to the water outlet.

7. The filter with descaling function according to claim 5, characterized in that: It also includes an electrolytic sterilization module, which includes a PCB board, an anode plate and a cathode plate. The side wall of the lower base is provided with a placement box for placing the PCB board, and the anode plate and cathode plate are arranged in the water outlet channel of the lower base.

8. The filter with descaling function according to claim 7, characterized in that: The bottom wall of the water outlet channel of the lower base is provided with limiting ribs corresponding to the anode plate and the cathode plate. The electrolytic sterilization module also includes a pressure cap, which is disposed in the water outlet channel of the lower base. The lower surface of the pressure cap is also provided with limiting ribs corresponding to the anode plate and the cathode plate.

9. The filter with descaling function according to claim 1, characterized in that: The filter element includes a filter screen, a filter element support, a top cover, a compression cap, and a spring. The filter screen is wrapped around the outer periphery of the filter element support. The purified water flow channel is disposed inside the filter element support. The connecting channel is disposed at the bottom of the filter element support. The filter element support has a variable pressure cavity inside, with an open opening at the top. The top cover is connected to the top of the filter element support. The compression cap is vertically movable and accommodated in the variable pressure cavity. A sealing ring is provided between the compression cap and the side wall of the variable pressure cavity. The spring pushes the compression cap upward and causes the compression cap to move upward and press against the top cover.

10. The filter with descaling function according to claim 1, characterized in that: It also includes a one-way valve installed in the water inlet channel.

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