Filter element

Abstract

The filter element comprises a lower shell, an upper shell and a filter body, a filter cavity used for containing the filter body is formed between the lower shell and the upper shell, an upper protruding part protruding upwards is arranged on the upper side of the upper shell, and a water inlet end and a water outlet end which protrude upwards and are arranged at intervals are arranged on the upper side of the upper protruding part. A left clamping bulge positioned on the left side of the water inlet end and a right clamping bulge positioned on the right side of the water outlet end are arranged on the peripheral side of the upper convex part; the water inlet end is communicated with the filtering cavity; a lower extension connecting part extending downwards is arranged in the upper shell, the lower side of the lower extension connecting part is connected with the water outlet end of the filter body, and the upper side of the lower extension connecting part is communicated with the water outlet end. Rapid installation is achieved in a clamping mode, extra tools or complex steps are not needed, installation convenience is improved, meanwhile, it is ensured that the filter element is stably fixed through the left clamping protrusion and the right clamping protrusion, and the falling risk is reduced.

Description

Technical Field

[0001] This application relates to the field of water purification filter technology, and more particularly to a filter element. Background Technology

[0002] A countertop water purifier is a convenient water purification device that requires no complicated installation and can be placed directly on a kitchen countertop or office desk. It is designed to meet the direct drinking water needs of homes, offices, and other settings. It uses multiple filtration technologies to remove impurities, odors, bacteria, and heavy metals from the water, providing safe and healthy drinking water, and is therefore increasingly favored by users.

[0003] However, the installation of filter cartridges in existing countertop water purifiers is inconvenient, making filter replacement complicated and impacting user experience. To address this issue, this application proposes a novel filter cartridge designed to improve installation ease and optimize user experience. Utility Model Content

[0004] The main objective of this application is to provide a filter element that addresses the aforementioned technical problems.

[0005] To achieve the above objectives, this application proposes a filter element, including a lower housing, an upper housing, and a filter body. A filter cavity for accommodating the filter body is formed between the lower housing and the upper housing. The upper housing has an upwardly protruding upper convex portion on its upper side. The upper convex portion has an upwardly protruding inlet end and an outlet end that are spaced apart. The upper convex portion has a left snap-fit ​​protrusion located to the left of the inlet end and a right snap-fit ​​protrusion located to the right of the outlet end on its periphery.

[0006] The water inlet is connected to the filter chamber;

[0007] The upper housing has a downwardly extending lower extension connection part inside. The lower side of the lower extension connection part is connected to the water outlet end of the filter body, and its upper side is connected to the water outlet end.

[0008] As described above, the filter element has a left guide surface on the left side of the left snap-fit ​​protrusion and a right guide surface on the right side of the right snap-fit ​​protrusion.

[0009] As described above, the filter element has an upwardly protruding connecting portion on the upper side of the lower housing and an upwardly recessed engaging groove on the lower side of the upper housing for engaging the upwardly protruding connecting portion.

[0010] As described above, the filter element has a lower extension snap-fit ​​portion located inside the snap-fit ​​groove and extending downward on the lower side of the upper housing, and a guide rib is provided on the outer side of the lower extension snap-fit ​​portion.

[0011] As described above, the filter element has a sealing connection structure between the upper convex connecting part and the snap-fit ​​groove.

[0012] As described above, the filter element has an inlet sealing ring on the outside of the inlet end and an outlet sealing ring on the outside of the outlet end.

[0013] As described above, the filter element has a water outlet sealing structure between the water outlet end of the filter body and the lower side of the lower extension connection portion.

[0014] The filter element as described above includes:

[0015] A carbon rod with a water outlet channel in its middle;

[0016] A lower end cap is provided on the lower side of the carbon rod and is used to cover the lower side of the carbon rod;

[0017] The upper end cap is located on the upper side of the carbon rod and is used to cover the upper side of the carbon rod. Its upper side is connected to the lower side of the lower extension connection.

[0018] As described above, the filter element further includes a primary filtration membrane disposed on the outside of the carbon rod.

[0019] As described above, the primary filtration membrane of the filter element is a non-woven fabric.

[0020] Compared with the prior art, the above application has the following advantages:

[0021] This filter element features an upper protrusion on the upper housing, with an inlet and outlet end spaced apart on the upper side of the protrusion. Left and right snap-fit ​​protrusions are also located around the periphery of the upper protrusion. This design allows the filter element to be quickly and easily secured during installation via a snap-fit ​​mechanism, eliminating the need for additional tools or complex steps, significantly improving installation convenience. Furthermore, the left and right snap-fit ​​protrusions ensure a more stable and secure installation, preventing the filter element from easily falling off. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the filter element in this application.

[0024] Figure 2 This is a partial exploded view of the filter element of this application.

[0025] Figure 3 This is a cross-sectional view of the filter element in this application.

[0026] Figure 4 This is an exploded view of the filter element described in the filter cartridge of this application.

[0027] Figure 5 This is a perspective view of the upper housing described in the filter element of this application.

[0028] Figure 6 This is another perspective view of the upper housing described in the filter element of this application. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0032] like Figures 1 to 6 As shown, a filter element includes a lower housing 1, an upper housing 2, and a filter body 3. A filter cavity 100 for accommodating the filter body 3 is formed between the lower housing 1 and the upper housing 2. The upper housing 2 has an upwardly protruding upper protrusion 21. The upper protrusion 21 has an upwardly protruding water inlet 211 and a water outlet 212 that are spaced apart. The upper protrusion 21 has a left snap-fit ​​protrusion 213 located to the left of the water inlet 211 and a right snap-fit ​​protrusion 214 located to the right of the water outlet 212.

[0033] The water inlet 211 is connected to the filter chamber 100;

[0034] The upper housing 2 has a downwardly extending lower extension connection 22 inside. The lower side of the lower extension connection 22 is connected to the water outlet end of the filter body 3, and its upper side is connected to the water outlet end 212.

[0035] The filter element of this application features an upper protrusion 21 on the upper housing 2, and an inlet end 211 and an outlet end 212 spaced apart on the upper side of the upper protrusion 21. A left snap-fit ​​protrusion 213 and a right snap-fit ​​protrusion 214 are also provided around the upper protrusion 21. This design allows the filter element to be quickly and easily fixed during installation via a snap-fit ​​mechanism, eliminating the need for additional tools or complex steps, greatly improving installation convenience. Simultaneously, the design of the left snap-fit ​​protrusion 213 and the right snap-fit ​​protrusion 214 also makes the filter element more securely fixed and less prone to falling off.

[0036] Furthermore, the left snap-fit ​​protrusion 213 has a left guide surface 2131 on its left side; the right snap-fit ​​protrusion 214 has a right guide surface 2141 on its right side. This design facilitates insertion into the mounting slots of a tabletop water purifier.

[0037] Furthermore, the upper side of the lower housing 1 is provided with an upwardly protruding upper connecting portion 11, and the lower side of the upper housing 2 is provided with an upwardly recessed engaging groove 23 for engaging the upper protruding connecting portion 11. The purpose is to achieve an engaging connection.

[0038] Furthermore, the lower side of the upper housing 2 is also provided with a lower extension snap-fit ​​portion 24 located inside the snap-fit ​​groove 23 and extending downward, and a guide rib 241 is provided on the outer side of the lower extension snap-fit ​​portion 24. In this application, the guide rib 241 can guide the upper protruding connecting portion 11 to snap into the snap-fit ​​groove 23 more quickly, thereby improving assembly production efficiency.

[0039] Furthermore, a sealing connection structure is provided between the upper protruding connecting portion 11 and the snap-fit ​​groove 23. The sealing connection structure preferably employs ultrasonic welding to achieve a completely sealed state.

[0040] Furthermore, an inlet sealing ring 2111 is provided on the outer side of the water inlet end 211; and an outlet sealing ring 2121 is provided on the outer side of the water outlet end 212. The purpose is to meet the requirements for sealed connection.

[0041] Furthermore, a water outlet sealing structure 300 is provided between the water outlet end of the filter body 3 and the lower side of the lower extension connection 22. The water outlet sealing structure 300 is preferably a double sealing structure with double sealing rings, which has the advantage of improving sealing performance and preventing water leakage.

[0042] Furthermore, the filter body 3 includes a carbon rod 31, a lower end cap 32, and an upper end cap 33; a water outlet channel 311 is provided in the middle of the carbon rod 31; the lower end cap 32 is located on the lower side of the carbon rod 31 and is used to cover the lower side of the carbon rod 31; the upper end cap 33 is located on the upper side of the carbon rod 31 and is used to cover the upper side of the carbon rod 31, and its upper side is connected to the lower side of the lower extension connection portion 22.

[0043] Furthermore, the filter body 3 also includes a primary filter membrane 34 disposed on the outside of the carbon rod 31. The primary filter membrane 34 is preferably a non-woven fabric.

[0044] The above description is one implementation method provided in conjunction with specific content, and does not imply that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to or identical to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A filter element comprising a lower housing (1) and an upper housing (2), and a filter body (3), wherein a filter cavity (100) for accommodating the filter body (3) is formed between the lower housing (1) and the upper housing (2), characterized in that: The upper shell (2) has an upwardly protruding upper protrusion (21) on its upper side. The upper protrusion (21) has an upwardly protruding water inlet (211) and a water outlet (212) that are spaced apart. The upper protrusion (21) has a left snap-fit ​​protrusion (213) located to the left of the water inlet (211) and a right snap-fit ​​protrusion (214) located to the right of the water outlet (212). The water inlet (211) is connected to the filter chamber (100); The upper housing (2) has a downwardly extending lower extension connection (22) inside. The lower side of the lower extension connection (22) is connected to the water outlet of the filter body (3), and its upper side is connected to the water outlet (212).

2. The filter cartridge of claim 1, wherein, The left snap-fit ​​protrusion (213) has a left guide surface (2131) on its left side; the right snap-fit ​​protrusion (214) has a right guide surface (2141) on its right side.

3. The filter cartridge of claim 1 wherein, The upper side of the lower housing (1) is provided with an upwardly protruding upper connecting part (11), and the lower side of the upper housing (2) is provided with an upwardly recessed locking groove (23) for engaging the upper protruding connecting part (11).

4. The filter cartridge of claim 3, wherein, The lower side of the upper housing (2) is also provided with a lower extension snap-fit ​​part (24) located inside the snap-fit ​​groove (23) and extending downward, and a guide rib (241) is provided on the outer side of the lower extension snap-fit ​​part (24).

5. The filter cartridge of claim 4, wherein, A sealing connection structure is provided between the upper protruding connecting part (11) and the snap-fit ​​groove (23).

6. The filter cartridge of claim 1, wherein, The water inlet end (211) is provided with a water inlet sealing ring (2111) on the outside; the water outlet end (212) is provided with a water outlet sealing ring (2121) on the outside.

7. The filter element according to claim 1, characterized in that, A water outlet sealing structure (300) is provided between the water outlet end of the filter body (3) and the lower side of the lower extension connection part (22).

8. The filter cartridge of claim 1, wherein, The filter element (3) includes: A carbon rod (31) has a water outlet channel (311) in its middle; The lower end cap (32) is located on the lower side of the carbon rod (31) and is used to cover the lower side of the carbon rod (31); The upper end cap (33) is located on the upper side of the carbon rod (31) and is used to cover the upper side of the carbon rod (31), and its upper side is connected to the lower side of the lower extension connection (22).

9. The filter cartridge of claim 8, wherein, The filter body (3) also includes a primary filter membrane (34) disposed on the outside of the carbon rod (31).

10. The filter cartridge of claim 9, wherein, The primary filter membrane (34) is a non-woven fabric.

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