Double-filtration composite filter element and water purification equipment

Abstract

The utility model relates to the technical field of water purifier filter elements, in particular to a double-filtration composite filter element and water purification equipment, which are composed of a filter element cover, a filter element cylinder and a filter element bottom, the filter element cover is fixed at one end of the filter element cylinder, the filter element bottom is fixed at the other end of the filter element cylinder, and a filter material is placed in a closed space formed by the filter element cover, the filter element cylinder and the filter element bottom. The filter materials are two cylindrical filter materials which are set to be a first filter material and a second filter material, the first filter material and the second filter material are arranged in a concentric circle mode, and two water inlets and two water outlets are formed in the connecting position of the filter element cover and the water purifier and are set to be a first water inlet, a second water inlet, a first water outlet and a second water outlet respectively. Water of the water purifier enters the first filter material from the first water inlet to be filtered and then flows out of the first water outlet into the water purifier through the first water channel, and water of the water purifier enters the second filter material from the second water inlet to be filtered and then flows out of the second water outlet into the water purifier through the second water channel.

Description

Technical Field

[0001] This utility model relates to the field of water purifier filter technology, specifically, to a composite filter element with dual filtration and a water purification device. Background Technology

[0002] As water purifiers continue to improve, the demand for filter replacement is also increasing. Existing water purifier filters include: filter cover, filter cartridge, and filter media encapsulated inside the filter cartridge.

[0003] Currently, the main method for encapsulating filter media is to fix the filter cover and filter cartridge together by welding (usually spin welding). Since the filter cover and filter cartridge cannot be disassembled after welding, the produced filter cartridges are of a fixed size. If filter cartridges of the same diameter but different lengths are needed, new molds must be made to produce new filter cartridges. Mold making is a considerable expense for enterprises, increasing production costs and thus leading to an increase in the price of filter cartridges sold to consumers.

[0004] In addition, water purification equipment on the market has the following problems: Firstly, the products are relatively large, taking up a significant amount of cabinet space and leaving less room for other kitchen appliances, hindering efficient cabinet layout and resulting in wasted space. Secondly, while composite filter cartridges reduce space usage, their structural limitations require dedicated water channels to support them. This increases the versatility of the water purification equipment and its ability to combine with other functions, leading to resource waste. Furthermore, the dedicated water channels also occupy considerable space, resulting in similar space waste. Utility Model Content

[0005] To address the aforementioned technical issues, provide consumers with a cost-effective filter cartridge, reduce filter replacement costs, enable consumers to replace filter cartridges in shorter cycles, minimize space requirements, improve water filtration efficiency, and enhance quality of life, this utility model discloses a dual-filtration composite filter cartridge and water purification device.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] A dual-filtration composite filter element consists of three parts: a filter element cover, a filter element cylinder, and a filter element bottom. The filter element cover is made using an integral injection molding process and is connected to the water purifier. The filter element cylinder is cylindrical, with the filter element cover fixed to one end and the filter element bottom fixed to the other end. The filter element cover, filter element cylinder, and filter element bottom form a closed space in which filter media are placed. The filter media consists of two cylindrical filter media, designated as the first filter media and the second filter media, which are arranged in concentric circles. The position where the filter element cover connects to the water purifier is provided with two inlets and two outlets, designated as the first inlet, the second inlet, the first outlet, and the second outlet, respectively.

[0008] In the above technical solution, the filter cartridge shell consists of three parts: the filter cartridge cover, the filter cartridge tube, and the filter cartridge bottom, forming a three-section design. All three parts are made of PVC material. The filter cartridge cover and filter cartridge bottom, which connect to the water purifier, are manufactured using injection molding. Because the filter cartridge cover has a complex structure, the mold opening cost is high. The filter cartridge bottom structure is made to order, resulting in lower mold opening costs. The filter cartridge tube can be directly cut to the appropriate length from a PVC pipe. Therefore, filter cartridge shells of different heights can be manufactured simply by adjusting the length of the filter cartridge tube. Compared to most structures currently on the market, this eliminates the mold opening cost of the filter cartridge tube, saving production costs. Furthermore, the filter media inside the filter cartridge uses a two-layer design, with each filter media having an independent inlet and outlet, achieving a dual composite filtration effect. This reduces space occupation, improves water filtration efficiency, and enhances the quality of life.

[0009] In a further improvement of this utility model, the first inlet, second inlet, first outlet, and second outlet of the dual-filtration composite filter element are not connected. The first inlet is connected to the first filter material, and the cylinder wall of the filter element and the outer wall of the first filter material form a water channel, which is designated as the first water channel. The second inlet is connected to the second filter material, and the outer wall of the second filter material and the inner wall of the first filter material form a water channel, which is designated as the second water channel. Water from the water purifier enters the first filter material through the first inlet, is filtered, and then flows out of the water purifier through the first water channel and the first outlet. Similarly, water from the water purifier enters the second filter material through the second inlet, is filtered, and then flows out of the water purifier through the second water channel and the second outlet.

[0010] The filter cartridge cover, filter cartridge bottom, and filter cartridge can be connected in various ways. For ease of maintenance and filter media replacement, the connection can be detachable, such as by threaded connections. However, since the filter cartridge housing is used to hold the filter media and connect it to the water purifier, to prevent leakage, the filter cartridge cover and filter cartridge bottom in this invention are welded to both ends of the filter cartridge, forming a well-sealed space that has passed pressure testing and achieves a leak-proof effect.

[0011] A further improvement to this invention is that the bottom of the filter element contracts inward to form a groove. During filter element replacement, the thumb of the user can press against the groove, giving the filter element housing an upward lifting force, making it easier to install and disassemble.

[0012] In a further improvement of this invention, the first and second filter materials are made of activated carbon.

[0013] This utility model also discloses a composite water purification device with dual filtration, which uses the above-mentioned composite filter element with dual filtration.

[0014] The beneficial effects of this utility model are as follows: By combining the first filter material and the second filter material together and setting two independent water channels for filtration, this utility model achieves multifunctional composite filtration, resulting in a smaller volume, a smaller space occupation, and easier space arrangement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional structural diagram of this utility model.

[0017] Figure 3 yes Figure 1 A bottom view.

[0018] In the diagram, 1-filter cover, 2-filter cartridge, 3-filter bottom, 4-first inlet, 5-first outlet, 6-second inlet, 7-second outlet, 8-first filter media, 9-second filter media, 10-first channel, 11-second channel, 201-tube wall, 301-groove, 901-outer wall of second filter media. Detailed Implementation

[0019] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0020] Example: Figure 1 and Figure 2As shown, a dual-filtration composite filter element consists of three parts: a filter element cover 1, a filter element cylinder 2, and a filter element base 3. The filter element cover 1 is manufactured using an integral injection molding process and is attached to the water purifier. The filter element cylinder 2 is cylindrical, with the filter element cover 1 fixed to one end and the filter element base 3 fixed to the other end. The filter element cover 1, filter element cylinder 2, and filter element base 3 form a closed space in which filter media is placed. The filter media is activated carbon filter media, consisting of two cylindrical filter media, designated as the first filter media 8 and the second filter media 9. The first filter media 8 and the second filter media 9 are arranged in concentric circles. The position where the filter element cover 1 connects to the water purifier has two inlets and two outlets, designated as the first inlet 4, the second inlet 6, and the first outlet 5, respectively. The second water outlet 7; the first water inlet 4, the second water inlet 6, the first water outlet 5, and the second water outlet 7 are not connected to each other. The first water inlet 4 is connected to the first filter material 8. The cylinder wall 201 of the filter element 2 and the outer wall of the first filter material form a water channel, which is set as the first water channel 10. The second water inlet 6 is connected to the second filter material 9. The outer wall 901 of the second filter material and the inner wall of the first filter material 8 form a water channel, which is set as the second water channel 11. The water of the water purifier enters the first filter material 8 from the first water inlet 4, is filtered, and then flows out of the water purifier from the first water outlet 5 through the first water channel 10. Similarly, the water of the water purifier enters the second filter material 9 from the second water inlet 6, is filtered, and then flows out of the water purifier from the second water outlet 11 through the second water channel 11.

[0021] like Figure 3 As shown, the bottom of the filter element 3 contracts inward to form a groove 301. During the filter element replacement process, the thumb of the user can press against the groove 301, so that the filter element shell has an upward lifting force, making it easier to install and disassemble.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. 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 to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A composite filter element with dual filtration, comprising three parts: a filter element cover, a filter element cylinder, and a filter element bottom. The filter element cover is manufactured using an integral injection molding process and connected to a water purifier. The filter element cylinder is cylindrical, with the filter element cover fixed to one end and the filter element bottom fixed to the other end. The filter element cover, filter element cylinder, and filter element bottom form a closed space in which filter media is placed. The filter element is characterized in that... The filter media consists of two cylindrical filter media, designated as the first filter media and the second filter media, which are arranged in concentric circles. The filter cover is provided with two water inlets and two water outlets at the connection position with the water purifier, designated as the first water inlet, the second water inlet, the first water outlet, and the second water outlet, respectively.

2. The composite filter element with dual filtration according to claim 1, characterized in that, The first inlet, the second inlet, the first outlet, and the second outlet are not connected. The first inlet is connected to the first filter material. The wall of the filter cartridge and the outer wall of the first filter material form a water channel, which is designated as the first water channel. The second inlet is connected to the second filter material. The outer wall of the second filter material and the inner wall of the first filter material form a water channel, which is designated as the second water channel.

3. The composite filter element with dual filtration according to claim 2, characterized in that, The filter element cover and the filter element bottom are fixed to both ends of the filter element cylinder by welding.

4. The composite filter element with dual filtration according to claim 3, characterized in that, The bottom of the filter element tapers inward to form a groove.

5. The composite filter element with dual filtration according to any one of claims 1-4, characterized in that, The first and second filter media are made of activated carbon.

6. A composite water purification device with dual filtration, characterized in that, Use the composite filter cartridge with dual filtration as described in claim 5.

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