Filter element and water purifying device

Abstract

The utility model discloses a filter core and water purification device, filter core includes filter shell framework and end cap, and the cylinder wall of filter shell framework is equipped with a plurality of water inlet holes, and end cap is equipped with water outlet, and end cap is detachably connected with filter shell framework, and water outlet is communicated with the inside of filter shell framework through the opening, and the end face of end cap is fixed with first filter screen towards filter shell framework, and first filter screen is the mesh cover structure, and it covers and is located at water outlet.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter and a water purification device. Background Technology

[0002] The related technology discloses a filter element structure with a planar filter screen at the water outlet. The following problems exist: (1) Due to the limitation of the planar shape, the effective filtration area of ​​the filter screen is small, the filtration efficiency is low, and the impurity pressure per unit area is large, which makes it easy to get clogged quickly; (2) Water flow can easily pass through the local area of ​​the planar filter screen quickly (such as the area near the center of the water outlet), resulting in excessive filtration load in that area, while other areas are not fully utilized, affecting the overall filtration effect. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. Therefore, the present invention proposes a filter element.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model also proposes a water purification device having the above-mentioned filter element.

[0006] The filter element according to a first aspect embodiment of the present invention includes:

[0007] The filter housing frame is cylindrical and contains filter media inside. The cylindrical wall of the filter housing frame has several water inlet holes, and one end of the filter housing frame has an opening.

[0008] An end cap is provided with a water outlet. The end cap is placed over the opening and is detachably connected to the filter housing frame. The water outlet communicates with the interior of the filter housing frame through the opening. A first filter screen is fixedly provided on the end face of the end cap facing the filter housing frame. The first filter screen is a mesh cover structure and covers the water outlet.

[0009] The filter element according to the embodiment of this utility model has at least the following beneficial effects:

[0010] In use, water flows into the filter housing frame through the inlet hole, making full contact with the filter media, and then flows out from the outlet. The outlet has a first filter screen with a mesh cover structure to block the filter media. The mesh cover structure is three-dimensional, forming a larger effective filtration area, allowing more liquid to pass through in the same space, reducing clogging and improving filtration efficiency. Furthermore, the three-dimensional mesh cover structure itself has a certain degree of support, making it less prone to deformation and damage under external forces such as water flow impact, and more durable than a flat filter screen.

[0011] According to some embodiments of the present invention, the first filter screen is frustum-shaped, and its top and side surfaces are provided with mesh holes.

[0012] According to some embodiments of the present invention, the end cap is provided with a plurality of buckles on the end face facing the filter shell skeleton, and the buckles are arranged at intervals along the edge of the end cap. The cylindrical wall of the filter shell skeleton is provided with a plurality of fastening positions, and the fastening positions are arranged at intervals along the circumference of the filter shell skeleton. The buckles are fastened to the fastening positions.

[0013] According to some embodiments of the present invention, the other end of the filter shell skeleton is provided with a threaded post.

[0014] According to some embodiments of the present invention, a second filter screen is also included, which covers the outer periphery of the cylindrical wall of the filter shell skeleton. A sealing ring is fitted at each end of the filter shell skeleton, and the sealing ring abuts against the filter shell skeleton and the second filter screen.

[0015] According to some embodiments of the present invention, the pore size of the second filter screen is 40 mesh to 120 mesh.

[0016] According to some embodiments of this utility model, the diameter of the filter shell skeleton is D1, the diameter of the water outlet is D2, and D2 / D1≥1 / 3.

[0017] According to some embodiments of this utility model, the ratio of the total water inlet area S1 of the water inlet hole to the cylindrical wall area S2 of the filter shell skeleton is S1 / S2≥10%.

[0018] According to some embodiments of this utility model, the shape of the water inlet hole is circular, elliptical, or square.

[0019] The water purification device according to a second aspect embodiment of the present invention includes the filter element and a housing. The housing has an inlet chamber and an outlet chamber. The filter shell frame is installed in the inlet chamber. The inlet hole communicates with the inlet chamber, and the outlet communicates with the outlet chamber.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is an exploded view of the filter element of this utility model;

[0023] Figure 2This is a structural diagram of the end cap of this utility model;

[0024] Figure 3 This is a structural diagram of the filter housing skeleton of this utility model;

[0025] Figure 4 This is an assembly drawing of the water purification device of this utility model;

[0026] Figure 5 This is an assembly diagram of the filter element of this utility model.

[0027] Reference numerals: filter housing frame 100, water inlet hole 110, opening 120, snap-fit ​​130, threaded post 140, end cap 200, water outlet 210, first filter screen 220, mesh 221, snap-fit ​​230, second filter screen 300, sealing ring 400, housing 500, water inlet cavity 510, water outlet cavity 520. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] Reference Figure 1-5 A filter element, comprising:

[0030] The filter housing frame 100 is cylindrical and contains filter media. The cylindrical wall of the filter housing frame 100 is provided with several water inlet holes 110. One end of the filter housing frame 100 has an opening 120. The cylindrical wall of the filter housing frame 100 refers to the annular side wall of the filter housing frame 100.

[0031] The end cap 200 has an outlet 210. The end cap 200 covers the opening 120. The end cap 200 is detachably connected to the filter shell frame 100. The outlet 210 communicates with the interior of the filter shell frame 100 through the opening 120. A first filter screen 220 is fixedly installed on the end face of the end cap 200 facing the filter shell frame 100. The first filter screen 220 is integrally formed with the main body of the end cap 200. The first filter screen 220 is a mesh cover structure and covers the outlet 210.

[0032] In use, water flows into the filter housing frame 100 through the inlet hole 110, making full contact with the filter media, and then flows out through the outlet 210. The outlet 210 is equipped with a first filter screen 220 with a mesh cover structure to block the filter media. The mesh cover structure is three-dimensional, forming a larger effective filtration area, allowing more liquid to pass through in the same space, reducing clogging and improving filtration efficiency. Furthermore, the three-dimensional mesh cover structure itself has a certain degree of support, making it less prone to deformation and damage under external forces such as water flow impact, and more durable than a flat filter screen.

[0033] In some embodiments of this invention, the first filter screen 220 is frustum-shaped, with mesh holes 221 on both its top and side surfaces. The conical structure of the frustum allows water to enter from the top surface and pass through the inclined side surfaces, avoiding excessive concentration of water flow in certain areas and reducing local wear or blockage caused by water flow impact. The frustum shape itself has good mechanical stability and can withstand the continuous impact and pressure of water flow.

[0034] In some embodiments of this utility model, the end cap 200 has a plurality of snap fasteners 230 on its end face facing the filter housing frame 100, and the snap fasteners 230 are spaced apart along the edge of the end cap 200. The cylindrical wall of the filter housing frame 100 has a plurality of fastening positions 130, which are spaced apart circumferentially along the filter housing frame 100. The snap fasteners 230 are engaged with the fastening positions 130. The mating structure of the snap fasteners 230 and the fastening positions 130 allows the connection between the end cap 200 and the filter housing frame 100 to be completed without additional tools, making the operation convenient.

[0035] In some embodiments of this utility model, the other end of the filter housing frame 100 is provided with a threaded post 140. A threaded hole that mates with the threaded post 140 is provided inside the housing 500 of the water purification device, which facilitates the installation and removal of the filter element inside the housing 500.

[0036] In some embodiments of this utility model, a second filter screen 300 is also included. The second filter screen 300 covers the outer periphery of the cylindrical wall of the filter shell frame 100. Sealing rings 400 are respectively fitted at both ends of the filter shell frame 100, and the sealing rings 400 abut against the space between the filter shell frame 100 and the second filter screen 300. In use, water undergoes primary filtration through the second filter screen 300 and then enters the interior of the filter shell frame 100 through the water inlet 110, where it undergoes secondary filtration through the filter media. In addition to its primary filtration function, the second filter screen 300 also prevents the filter media from flowing out. The sealing rings 400 between the second filter screen 300 and the filter shell frame 100 prevent the filter media from flowing out through the gap between them.

[0037] In some embodiments of this utility model, the pore size of the second filter 300 is 40 mesh to 120 mesh.

[0038] In some embodiments of this utility model, the diameter of the filter housing frame 100 is D1, and the diameter of the outlet 210 is D2, such that D2 / D1 ≥ 1 / 3. The diameter D1 of the filter housing frame 100 determines the internal filter media holding space and the size of the inlet area, while the diameter D2 of the outlet 210 directly affects the water output capacity. The ratio of D2 / D1 ≥ 1 / 3 ensures that the water output capacity matches the filtration capacity of the filter housing frame 100, and that the outlet 210 has sufficient flow area to avoid excessive water flow resistance due to an excessively small outlet 210, thus ensuring the coordinated operation of the entire filtration system.

[0039] In some embodiments of this utility model, the ratio of the total inlet area S1 of the inlet hole 110 to the cylindrical wall area S2 of the filter shell frame 100, S1 / S2, is ≥10%. The cylindrical wall area S2 = π*D1*L (where L is the length of the filter shell frame 100). The cylindrical wall area S2 indirectly reflects the internal filter media's capacity and filtration efficiency, while the total inlet area S1 determines the inlet water capacity. A ratio of S1 / S2 ≥ 10% ensures that the inlet water rate matches the filtration speed of the filter media, guaranteeing the continuous function of the filter media and avoiding low filter media utilization due to insufficient inlet water.

[0040] In some embodiments of this utility model, the water inlet hole 110 is circular, elliptical, or square. The filter media can be regular spherical or irregular in shape. The water inlet hole 110 corresponding to the regular spherical filter media is square or rectangular, and the water inlet hole 110 corresponding to the irregularly shaped filter media is circular or elliptical.

[0041] Reference Figure 4 A water purification device includes the above-mentioned filter element and housing 500. The housing 500 has an inlet chamber 510 and an outlet chamber 520. The filter housing frame 100 is installed in the inlet chamber 510. The inlet hole 110 is connected to the inlet chamber 510, and the outlet 210 is connected to the outlet chamber 520.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A filter element, characterized in that, include: The filter shell frame (100) is cylindrical and contains filter media. The cylindrical wall of the filter shell frame (100) is provided with several water inlet holes (110), and one end of the filter shell frame (100) has an opening (120). An end cap (200) is provided with a water outlet (210). The end cap (200) covers the opening (120). The end cap (200) is detachably connected to the filter shell frame (100). The water outlet (210) communicates with the interior of the filter shell frame (100) through the opening (120). A first filter screen (220) is fixedly provided on the end face of the end cap (200) facing the filter shell frame (100). The first filter screen (220) is a mesh cover structure and covers the water outlet (210).

2. The filter element according to claim 1, characterized in that, The first filter screen (220) is frustum-shaped, and its top and side surfaces are provided with mesh holes (221).

3. The filter element according to claim 1, characterized in that, The end cap (200) has a plurality of buckles (230) on its end face facing the filter housing frame (100), and the buckles (230) are arranged at intervals along the edge of the end cap (200). The cylindrical wall of the filter housing frame (100) has a plurality of fastening positions (130), and the fastening positions (130) are arranged at intervals along the circumference of the filter housing frame (100). The buckles (230) are fastened to the fastening positions (130).

4. The filter element according to claim 1, characterized in that, The other end of the filter housing frame (100) is provided with a threaded post (140).

5. The filter element according to claim 1, characterized in that, It also includes a second filter screen (300), which covers the outer periphery of the cylindrical wall of the filter shell frame (100). Both ends of the filter shell frame (100) are respectively fitted with sealing rings (400), and the sealing rings (400) abut against the filter shell frame (100) and the second filter screen (300).

6. The filter element according to claim 5, characterized in that, The second filter screen (300) has a pore size of 40-120 mesh.

7. The filter element according to claim 1, characterized in that, The diameter of the filter shell frame (100) is D1, and the diameter of the outlet (210) is D2, so that D2 / D1≥1 / 3.

8. The filter element according to claim 1, characterized in that, The ratio of the total inlet area S1 of the inlet hole (110) to the cylindrical wall area S2 of the filter shell skeleton (100) is S1 / S2≥10%.

9. The filter element according to claim 1, characterized in that, The water inlet (110) is circular, elliptical, or square in shape.

10. A water purification device, characterized in that, The filter element and housing (500) according to any one of claims 1-9 are provided, wherein an inlet chamber (510) and an outlet chamber (520) are formed in the housing (500), the filter housing frame (100) is installed in the inlet chamber (510), the inlet hole (110) is connected to the inlet chamber (510), and the outlet (210) is connected to the outlet chamber (520).

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