Filter cartridge assembly for water purification apparatus

Abstract

The utility model discloses a filter core subassembly of water purification equipment, including filter core shell, the upper portion threaded seal installation of filter core shell has the sealing cover, and the side portion of sealing cover buckled has the elastic buckle, and the lower part of elastic buckle is clamped in the upper portion of filter core shell. Filter core shell includes the casing, and the upper portion of casing is provided with the notched, and the inner wall of upper portion of casing is provided with the threaded mouth. Sealing cover includes the cover body, and the lower part fixed connection of cover body has the threaded block, and the lower end fixed connection of threaded block has the sealing ring, can make the button force of sealing cover act on filter core shell, and filter core shell is screwed tightly in target water purifier, after filter core shell is taken off, the user who is thrifty and understands internal structure can outwardly scratch out elastic buckle again, and sealing cover is screwed down, and the filler in filter core shell is poured out, and new filler is inserted, avoid wasting filter core shell, sealing cover, elastic buckle, and the user who is afraid of troublesome directly discards filter core shell, sealing cover, elastic buckle together and replaces new, and it is convenient according to the user demand selection.

Description

Technical Field

[0001] This utility model belongs to the field of water purifier technology, and in particular relates to filter cartridge components of water purification equipment. Background Technology

[0002] Water purifier filter cartridges are the core components of a water purifier, acting as the "heart" of the device. They achieve layered filtration of impurities in the water through different materials and structures. Common types include PP cotton filters (intercepting large particles such as sediment and rust), activated carbon filters (adsorbing residual chlorine, odors, and some organic matter), ultrafiltration membrane filters (filtering bacteria, colloids, and other tiny contaminants), and RO reverse osmosis membrane filters (deeply removing heavy metals and microorganisms with a precision of up to 0.0001 microns). Different filter cartridges have different functional focuses and need to be replaced regularly according to their usage cycle to ensure water purification efficiency. Their performance directly determines the purification effect and water quality of the water purifier.

[0003] Water purifier filter cartridges consist of an outer shell and an internal filling material. Most filter cartridges have a sealed, non-removable outer shell, making replacement easier. However, some users are frugal and prefer to go through the extra trouble of replacing only the internal filling material to reduce replacement costs. This results in a low degree of compatibility between conventional filter cartridges and user needs.

[0004] Therefore, we propose using filter cartridges in water purification equipment to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem of low matching degree between conventional filter cartridges and user needs, and to propose a filter cartridge assembly for water purification equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The filter cartridge assembly of the water purification equipment includes a filter cartridge housing. A sealing cap is threadedly installed on the upper part of the filter cartridge housing, and a spring-loaded buckle is fastened to the side of the sealing cap. The lower part of the spring-loaded buckle engages with the upper part of the filter cartridge housing. The spring-loaded buckle secures the filter cartridge housing and sealing cap, preventing the sealing cap from loosening. After the filter cartridge housing is placed into the target water purifier, the inner wall of the water purifier acts on the spring-loaded buckle, keeping it engaged with the upper part of the filter cartridge housing. This allows the sealing cap's tension to act on the filter cartridge housing, tightening it into the target water purifier. After removing the filter cartridge housing, thrifty users familiar with the internal structure can pry out the spring-loaded buckle, unscrew the sealing cap, empty the filler from the filter cartridge housing, and insert new filler, avoiding waste of the filter cartridge housing, sealing cap, and spring-loaded buckle. Users who prefer convenience can simply discard the filter cartridge housing, sealing cap, and spring-loaded buckle together for replacement, allowing for selection based on user needs.

[0007] Preferably, the filter element housing includes a shell, the upper part of which has a slot, and the upper inner wall of the shell has a threaded opening.

[0008] Preferably, the sealing cap includes a cap body, a threaded block fixedly connected to the lower part of the cap body, a sealing ring fixedly connected to the lower end of the threaded block, the threaded block being threaded into the threaded opening, the sealing ring sealing the upper part of the housing, a knob fixedly connected to the upper end of the cap body, and a groove formed on the top of the cap body. Turning the knob rotates the cap body, which in turn rotates the threaded block, allowing the threaded block to be unscrewed from the threaded opening or screwed back into the threaded opening. The sealing ring seals the upper opening of the housing, facilitating the unscrewing or screwing back of the sealing cap.

[0009] Preferably, the outer wall of the knob has a groove. The groove increases the friction between the knob and the hand.

[0010] Preferably, the snap fastener includes a snap strip that engages within a snap groove or opening. An insert strip is fixedly connected to the upper end of the snap strip, and this insert strip is movably inserted into the snap groove. A spring strip is fixedly connected to the insert strip, and a snap block is fixedly connected to one end of the spring strip. The spring strip slides into the snap groove, and the snap block engages with the snap groove. By using the snap block to engage within the snap groove, the snap fastener is held within the cover body, preventing the snap strip from disengaging from the snap groove or opening, thus improving the stability of the sealing cover and the snap fastener's position.

[0011] Preferably, the spring clip further includes a guide head, which is fixedly connected to one end of the spring strip. The guide head guides the clip block into the clip groove.

[0012] In summary, the technical effects and advantages of this utility model are as follows: 1. Use the spring clips to hold the filter cartridge and the sealing cap in place to prevent the sealing cap from loosening. After placing the filter cartridge into the target water purifier, use the inner wall of the water purifier to engage the spring clips with the upper part of the filter cartridge. This allows the sealing cap's tension to act on the filter cartridge, tightening it into the target water purifier. After removing the filter cartridge, thrifty users who understand the internal structure can pry the spring clips outwards, unscrew the sealing cap, empty the filler from the filter cartridge, and insert new filler to avoid wasting the filter cartridge, sealing cap, and spring clips. Users who prefer convenience can simply discard the filter cartridge, sealing cap, and spring clips together for replacement. This allows for selection based on user needs.

[0013] 2. Turning the knob rotates the cover, which in turn rotates the threaded block. The threaded block can be unscrewed from the threaded opening or screwed back into the threaded opening. The sealing ring seals the opening at the top of the housing, making it easy to unscrew or screw back the sealing cover.

[0014] 3. The buckle is fastened into the buckle groove to keep the spring buckle inside the cover body, preventing the buckle strip from falling out of the buckle groove and improving the stability of the sealing cover and spring buckle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the filter cartridge shell structure of this utility model; Figure 3 This is a schematic diagram of the sealing cap structure of this utility model; Figure 4 This is a schematic diagram of the spring-loaded buckle structure of this utility model.

[0016] In the diagram: 2. Filter cartridge shell; 3. Sealing cap; 4. Spring snap; 21. Shell; 22. Groove; 23. Threaded opening; 31. Cover body; 32. Threaded block; 33. Sealing ring; 34. Snap groove; 35. Knob; 36. Groove; 41. Snap strip; 42. Insert strip; 43. Spring strip; 44. Guide head; 45. Snap block. Detailed Implementation

[0017] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0018] like Figure 1 As shown, the filter element assembly of the water purification equipment includes a filter element housing 2, a sealing cover 3 is threadedly installed on the upper part of the filter element housing 2, a spring buckle 4 is fastened on the side of the sealing cover 3, and the lower part of the spring buckle 4 is locked onto the upper part of the filter element housing 2.

[0019] like Figure 1 and 2 As shown, the filter cartridge housing 2 includes a housing 21, with a groove 22 on the upper part of the housing 21 and a threaded opening 23 on the upper inner wall of the housing 21. The threaded opening 23 is used for threaded connection of the sealing cap 3, and the groove 22 is used for snap-fit ​​of the spring clip 4.

[0020] like Figure 1 and 3 As shown, the sealing cover 3 includes a cover body 31. A threaded block 32 is fixedly connected to the lower part of the cover body 31, and a sealing ring 33 is fixedly connected to the lower end of the threaded block 32. The threaded block 32 is threaded into the threaded opening 23, and the sealing ring 33 seals the upper part of the housing 21. A knob 35 is fixedly connected to the upper end of the cover body 31, and a groove 34 is provided on the top of the cover body 31. Turning the knob 35 causes the cover body 31 to rotate, which in turn causes the threaded block 32 to rotate, thus unscrewing the threaded block 32 from the threaded opening 23, or re-screwing the threaded block 32 into the threaded opening 23, and sealing the upper opening of the housing 21 with the sealing ring 33.

[0021] like Figure 3 As shown, a groove 36 is provided on the outer wall of the knob 35. The groove 36 is used to increase the friction between the knob 35 and the hand.

[0022] like Figure 1 , 2As shown in Figure 4, the snap fastener 4 includes a snap bar 41, which is engaged in the snap groove 34 and the slot 22. An insert bar 42 is fixedly connected to the upper end of the snap bar 41, and the insert bar 42 is movably inserted into the snap groove 34. A spring strip 43 is fixedly connected to the insert bar 42, and a snap block 45 is fixedly connected to one end of the spring strip 43. The spring strip 43 slides into the snap groove 34, and the snap block 45 engages with the snap groove 34. The snap block 45, fastened within the snap groove 34, keeps the snap fastener 4 within the cover 31, preventing the snap bar 41 from disengaging from the snap groove 34 and the slot 22.

[0023] like Figure 1 and 4 As shown, the spring clip 4 also includes a guide head 44, which is fixedly connected to one end of the spring strip 43. The guide head 44 guides the clip block 45 into the clip groove 34.

[0024] Working principle: The spring clip 4 is used to lock between the filter cartridge shell 2 and the sealing cap 3 to prevent the sealing cap 3 from loosening. After the filter cartridge shell 2 is placed into the target water purifier, the inner wall of the water purifier acts on the spring clip 4 to keep the spring clip 4 locked to the upper part of the filter cartridge shell 2. This allows the tension of the sealing cap 3 to act on the filter cartridge shell 2, tightening the filter cartridge shell 2 into the target water purifier. After removing the filter cartridge shell 2, thrifty users who understand the internal structure can pry the spring clip 4 outwards, then unscrew the sealing cap 3, pour out the filling material inside the filter cartridge shell 2, and insert new filling material to avoid wasting the filter cartridge shell 2, sealing cap 3, and spring clip 4. Users who want to avoid trouble can simply discard the filter cartridge shell 2, sealing cap 3, and spring clip 4 together and replace them with new ones.

[0025] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0026] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. A filter element assembly for a water purification device, comprising a filter element housing (2), characterized in that: The filter element housing (2) is threadedly sealed with a sealing cover (3) on the upper part. The sealing cover (3) is fastened with a spring buckle (4) on the side. The lower part of the spring buckle (4) is locked in the upper part of the filter element housing (2). The filter element housing (2) includes a housing (21). The upper part of the housing (21) is provided with a slot (22). The upper inner wall of the housing (21) is provided with a threaded opening (23). The sealing cover (3) includes a cover body (31). The lower part of the cover body (31) is fixedly connected with a threaded block (32). The lower end of the threaded block (32) is fixedly connected with a sealing ring (33). The threaded block (32) is threadedly installed in the threaded opening (23). The sealing ring (33) seals the upper part of the housing (21). The upper end of the cover body (31) is fixedly connected with a knob (35). The upper part of the cover body (31) is provided with a buckle groove (34).

2. The filter cartridge assembly of the water purification equipment according to claim 1, characterized in that: The outer wall of the knob (35) is provided with a groove (36).

3. The filter cartridge assembly of the water purification equipment according to claim 1, characterized in that: The snap fastener (4) includes a snap bar (41), which is inserted into the snap groove (34) and the slot (22). The upper end of the snap bar (41) is fixedly connected to an insert (42), which is movably inserted into the snap groove (34). The insert (42) is fixedly connected to a spring strip (43), and one end of the spring strip (43) is fixedly connected to a snap block (45). The spring strip (43) slides into the snap groove (34), and the snap block (45) is engaged with the snap groove (34).

4. The filter cartridge assembly of the water purification equipment according to claim 3, characterized in that: The spring clip (4) also includes a guide head (44), which is fixedly connected to one end of the spring bar (43).

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