Filter element and water purifier with same

Abstract

The utility model relates to a filter element and a water purifier with the same. The filter element comprises a shell and a filter element, the filter material is arranged in the shell; the water purifier is characterized by further comprising a first flow guide part which is arranged in the shell and located on the periphery of the water inlet end of the filter material, and the first flow guide part comprises a first flow guide face which gradually inclines downwards from the inner wall of the shell to the water inlet end of the filter material; and a first gap for fluid to pass through is formed between the first flow guide surface and the water inlet end of the filter material. The filter element has the advantages that the flow speed of water is increased through the first flow guide surface which gradually inclines downwards from the inner wall of the shell to the water inlet end of the filter material, so that the periphery of the water inlet end of the filter material can be flushed, and the filter element can be flushed more cleanly.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a filter element and a water purifier with the filter element. Background Art

[0002] Water purification products are becoming more and more popular. Existing water purification products generally include pre-filter cartridges, membrane filter cartridges and post-filter cartridges. The pre-filter cartridge mainly filters large particles in the water, such as sand, rust, colloids and other substances. When the water quality in the area is poor, a large amount of particulate impurities will quickly block the surface of the pre-filter cartridge, causing the water flow of the water purification product to decrease sharply. Users have to replace the filter cartridge, and even replace the filter cartridge multiple times at short intervals.

[0003] Although there are also methods of manually disassembling and cleaning filter elements in the prior art, the manual method is time-consuming and labor-intensive. In order to solve this technical problem, a Chinese utility model with patent number ZL 202320115362.X (authorization announcement number CN218923993U) discloses a water purification filter element with a reverse cleaning function, which includes a shell with a filter element installed inside, and a water inlet and a cleaning mechanism are arranged at the top of the shell. By setting up a cleaning mechanism, when cleaning the filter element, the lower connecting piece is removed so that the water outlet pipe is separated from the water outlet. During this process, the shielding cylinder is reset by the elastic force of the connecting spring, and the shielding cylinder is reset to block the through hole, so that the water in the shell cannot enter the mounting seat through the through hole, and the sealing block moves out of the drain port. At this time, water can be introduced into the water outlet to clean the filter element, and the cleaned water is discharged through the drain port.

[0004] Although the above-mentioned water purification filter element can be cleaned by separating the drain pipe from the housing and injecting water into the housing in the reverse direction, the water introduced from the water outlet cannot ensure that the substances attached to the filter element will be washed away, so the flushing effect of this cleaning method is ineffective. Therefore, further improvement is needed. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide a filter element with better flushing effect in view of the above-mentioned prior art.

[0006] The second technical problem to be solved by the present invention is to provide a water purifier with the above-mentioned filter element in view of the above-mentioned prior art.

[0007] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a filter element, comprising:

[0008] case;

[0009] A filter material is disposed in the housing;

[0010] The invention is characterized in that:

[0011] The first flow guide is arranged in the shell and located at the outer periphery of the water inlet end of the filter material. The first flow guide includes a first flow guide surface that gradually slopes downward from the inner wall of the shell toward the water inlet end of the filter material. A first gap for fluid to pass through is formed between the first flow guide surface and the water inlet end of the filter material.

[0012] In order to achieve a certain degree of sedimentation of dirt in the water, the starting end of the first flow guide surface is attached to the inner wall of the shell, and a dirt receiving cavity is formed between the back side of the first flow guide surface and the inner wall of the shell. Since the dirt receiving cavity is not directly aligned with the flow path of the water flow, when the disturbed water enters the dirt receiving cavity, the dirt in the water can be deposited to a certain extent in the dirt receiving cavity.

[0013] In order to make the water flow form a vortex to achieve a better guiding effect, along the water flow path, a second guide member is also provided in the shell, which is located at the outer periphery of the water inlet end of the filter material and downstream of the first guide member. The second guide member is arranged adjacent to the first guide member. The second guide member includes a second guide surface that gradually slopes downward from the water inlet end of the filter material toward the inner wall of the shell, and the first gap is at least partially projected onto the second guide surface.

[0014] Preferably, the starting end of the second guide surface is substantially in contact with the water inlet end of the filter material, and a second gap is formed between the end of the second guide surface and the inner wall of the shell.

[0015] Preferably, the first guide surface and / or the second guide surface is an arc-shaped surface.

[0016] In order to improve the flow guiding effect, the first flow guiding member and the second flow guiding member are at least one group, and the first flow guiding member and the second flow guiding member of each group are arranged at intervals along the extension direction of the filter material.

[0017] To further improve the flow guiding effect, a third flow guiding member is further provided in the shell along the water flow path, which is located at the outer periphery of the water inlet end of the filter material and downstream of the first flow guiding member. The third flow guiding member includes a third flow guiding surface which gradually slopes downward from the inner wall of the shell toward the water inlet end of the filter material. The two ends of the third flow guiding surface form a third gap and a fourth gap with the water inlet end of the filter material and the inner wall of the shell, respectively. The fourth gap is used to allow the dirt deposited in the dirt receiving cavity to pass through, so as to improve the sewage discharge effect.

[0018] Furthermore, along the water flow path, a fourth guide member is provided in the shell and is located at the outer periphery of the water inlet end of the filter material and downstream of the third guide member. The fourth guide member is arranged adjacent to the third guide member. The fourth guide member includes a fourth guide surface which gradually tilts downward from the water inlet end of the filter material toward the inner wall of the shell, and the third gap is at least partially projected onto the fourth guide surface.

[0019] Preferably, the starting end of the fourth guide surface is substantially in contact with the water inlet end of the filter material, and a fifth gap is formed between the end of the fourth guide surface and the inner wall of the shell.

[0020] Preferably, the third guide surface and / or the fourth guide surface is an arc-shaped surface.

[0021] In order to further improve the flow guiding effect, the third flow guiding member and the fourth flow guiding member are at least one group, and each group of the third flow guiding member and the fourth flow guiding member are arranged at intervals along the extension direction of the filter material.

[0022] The shell is cylindrical, the filter material is a roll membrane extending along the axial direction of the shell, and a frame is provided in the shell and is sleeved on the outer periphery of the roll membrane. The first flow guide member, the second flow guide member, the third flow guide member and the fourth flow guide member are all arranged on the frame at intervals along the axial direction of the shell.

[0023] The shell body is further provided with a first end cap and a second end cap for mounting the two ends of the roll film, and the two ends of the surrounding frame are respectively against the first end cap and the second end cap.

[0024] The technical solution adopted by the utility model to solve the second technical problem is: a water purifier, characterized by having the filter element as described above.

[0025] Compared with the prior art, the utility model has the advantages that: through the first guide member arranged on the periphery of the water inlet end of the filter material, the first guide member has a first guide surface which is gradually inclined downward from the inner wall of the shell toward the water inlet end of the filter material, and a first gap for fluid to pass through is formed between the first guide surface and the water inlet end of the filter material, so that the flow rate of water can be increased through the first guide surface, so that the periphery of the water inlet end of the filter material can be flushed, so that the filter element can be flushed more cleanly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the filter element in the embodiment of the utility model;

[0027] Figure 2 for Figure 1 A cross-sectional view of

[0028] Figure 3 for Figure 1 Another cross-sectional view of (filter material omitted);

[0029] Figure 4 for Figure 1 Schematic diagram of part of the structure (housing omitted);

[0030] Figure 5 It is a schematic diagram of the structure of the flow guide component in the embodiment of the utility model. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] like Figures 1 to 5 The figure shows a preferred embodiment of a filter element and a water purifier having the filter element of the utility model. The filter element in this embodiment comprises a housing 1, a filter material 2 and a flow guide assembly.

[0033] The shell 1 is hollow inside and is provided with a water inlet 1a, a water outlet 1b and a sewage outlet 1c. In this embodiment, the shell 1 is cylindrical, the water inlet 1a and the water outlet 1b are both provided at the first end of the shell 1, and the sewage outlet 1c is provided at the second end of the shell. The filter material 2 is provided in the shell 1. Figure 2 As shown, the filter material 2 in this embodiment is a rolled membrane extending along the axial direction of the shell 1. The filter material 2 can filter the water entering the shell 1 from the water inlet 1a, and the water flows out from the water outlet 1b through the middle of the filter material 2. The cross-section of the filter material 2 is annular.

[0034] The housing 1 is also provided with a first end cap 81 and a second end cap 82 for mounting the two ends of the roll-type film, and the flow guide assembly is arranged between the first end cap 81 and the second end cap 82. Figure 5 As shown, the guide assembly in this embodiment includes a first guide member 3, a second guide member 4, a third guide member 5, a fourth guide member 6 and a surrounding frame 7. The surrounding frame 7 is sleeved on the outer periphery of the roll film. The first guide member 3, the second guide member 4, the third guide member 5 and the fourth guide member 6 are spaced apart on the surrounding frame 7 along the axial direction of the shell 1, and as shown in FIG. Figure 4 As shown, the two ends of the frame 7 are respectively against the first end cover 81 and the second end cover 82. Figure 5 As shown, the first guide member 3, the second guide member 4, the third guide member 5 and the fourth guide member 6 in this embodiment are all annular, and the above-mentioned frame 7 includes a plurality of connecting rods 71 ​​arranged at intervals along the circumference of each annular guide member, and annular rings 72 are respectively arranged at both ends of the frame 7, and each annular ring 72 is respectively abutted against the first end cover 81 and the second end cover 82.

[0035] Along the water flow path, the first guide member 3 and the second guide member 4 are located at the periphery of the water inlet end of the filter material 2, the second guide member 4 is located downstream of the first guide member 3 and is arranged adjacent to the first guide member 3, and the first guide member 3 is arranged close to the water inlet 1a. The first guide member 3 includes a first guide surface 31 that gradually slopes downward from the inner wall of the housing 1 toward the water inlet end of the filter material 2, and a first gap 10 for fluid to pass through is formed between the first guide surface 31 and the water inlet end of the filter material 2; Figure 2 As shown, the starting end of the first guide surface 31 is attached to the inner wall of the shell 1, and a dirt receiving cavity a is formed between the back side of the first guide surface 31 and the inner wall of the shell 1; the second guide member 4 includes a second guide surface 41 which gradually tilts downward from the water inlet end of the filter material 2 toward the inner wall of the shell 1, and the first gap 10 is at least partially projected on the second guide surface 41. In addition, the starting end of the second guide surface 41 is basically attached to the water inlet end of the filter material 2, and a second gap 11 is formed between the end of the second guide surface 41 and the inner wall of the shell 1.

[0036] The first guide surface 31 and / or the second guide surface 41 are arc-shaped surfaces. Figure 3 As shown, the first guide surface 31 and the second guide surface 41 are both arc-shaped surfaces. In addition, the first guide member 3 and the second guide member 4 are at least one group, and each group of the first guide member 3 and the second guide member 4 are arranged at intervals along the extension direction of the filter material 2 ( Figure 5 The first flow guide member 3 and the second flow guide member 4 are a group).

[0037] The third guide member 5 and the fourth guide member 6 are both located at the periphery of the water inlet end of the filter material 2, the fourth guide member 6 is located downstream of the third guide member 5 and is arranged adjacent to the third guide member 5, the third guide member 5 includes a third guide surface 51 which is gradually inclined downward from the inner wall of the shell 1 toward the water inlet end of the filter material 2, and the two ends of the third guide surface 51 form a third gap 12 and a fourth gap 13 with the water inlet end of the filter material 2 and the inner wall of the shell 1 respectively; the fourth guide member 6 includes a fourth guide surface 61 which is gradually inclined downward from the water inlet end of the filter material 2 toward the inner wall of the shell 1, and the third gap 12 is at least partially projected on the fourth guide surface 61, as shown in FIG. Figure 2 As shown, the starting end of the fourth guide surface 61 is substantially in contact with the water inlet end of the filter material 2 , and a fifth gap 14 is formed between the end of the fourth guide surface 61 and the inner wall of the housing 1 .

[0038] The third guide surface 51 and / or the fourth guide surface 61 are arc-shaped surfaces. Figure 3 As shown, the third guide surface 51 and the fourth guide surface 61 are both arc-shaped surfaces. In addition, the third guide member 5 and the fourth guide member 6 are at least one group, and each group of the third guide member 5 and the fourth guide member 6 is arranged at intervals along the extension direction of the filter material 2 ( Figure 5 The third guide member 5 and the fourth guide member 6 are a group).

[0039] The working principle of the filter element in this embodiment is as follows: the water entering the housing 1 from the water inlet 1a is accelerated by the inclined first guide surface 31 on the first guide member 3, and can wash the periphery of the filter material 2, and flow down through the first gap 10, and then generate eddy currents through the second guide surface 41 on the second guide member 4, and the stains in the disturbed water can be deposited in the dirt receiving chamber a;

[0040] The water guided by the second guide surface 41 flows down from the second gap 11 to the third guide surface 51, and is accelerated by the guide of the third guide surface 51 to rinse the periphery of the filter material 2; of course, the dirt deposited in the dirt chamber a can flow down from the fourth gap 13 below it with the water flow; in addition, the water flowing down from the third gap 12 will also flow down to the fourth guide surface 61, thereby generating vortexes again. Therefore, the filter material can be rinsed and the sewage can be discharged easily through the guide of the above guide assembly.

Claims

1. A filter element, comprising: Housing (1); A filter material (2) is disposed in the housing (1); The invention is characterized in that it also includes: A first flow guide (3) is arranged in the shell (1) and located at the periphery of the water inlet end of the filter material (2), the first flow guide (3) comprising a first flow guide surface (31) which gradually slopes downward from the inner wall of the shell (1) toward the water inlet end of the filter material (2), and a first gap (10) for fluid to pass through is formed between the first flow guide surface (31) and the water inlet end of the filter material (2).

2. The filter element according to claim 1, characterized in that: The starting end of the first flow-guiding surface (31) is attached to the inner wall of the shell (1), and a dirt-receiving cavity (a) is formed between the back side of the first flow-guiding surface (31) and the inner wall of the shell (1).

3. The filter element according to claim 2, characterized in that: Along the water flow path, a second flow guide member (4) is further provided in the shell (1), which is located at the outer periphery of the water inlet end of the filter material (2) and downstream of the first flow guide member (3); the second flow guide member (4) is arranged adjacent to the first flow guide member (3); the second flow guide member (4) comprises a second flow guide surface (41) which gradually slopes downward from the water inlet end of the filter material (2) toward the inner wall of the shell (1); and the first gap (10) is at least partially projected onto the second flow guide surface (41).

4. The filter element according to claim 3, characterized in that: The starting end of the second flow-guiding surface (41) is substantially in contact with the water inlet end of the filter material (2), and a second gap (11) is formed between the end of the second flow-guiding surface (41) and the inner wall of the housing (1).

5. The filter element according to claim 4, characterized in that: The first flow guiding surface (31) and / or the second flow guiding surface (41) are arc-shaped surfaces.

6. The filter element according to claim 5, characterized in that: The first flow guide (3) and the second flow guide (4) form at least one group, and each group of the first flow guide (3) and the second flow guide (4) are arranged at intervals along the extension direction of the filter material (2).

7. The filter element according to any one of claims 3 to 6, characterized in that: Along the water flow path, a third flow guide member (5) is further provided in the shell (1), which is located at the outer periphery of the water inlet end of the filter material (2) and downstream of the first flow guide member (3); the third flow guide member (5) comprises a third flow guide surface (51) which gradually slopes downward from the inner wall of the shell (1) toward the water inlet end of the filter material (2); two ends of the third flow guide surface (51) respectively form a third gap (12) and a fourth gap (13) with the water inlet end of the filter material (2) and the inner wall of the shell (1).

8. The filter element according to claim 7, characterized in that: Along the water flow path, a fourth flow guide member (6) is further provided in the shell (1), which is located at the outer periphery of the water inlet end of the filter material (2) and downstream of the third flow guide member (5); the fourth flow guide member (6) is arranged adjacent to the third flow guide member (5); the fourth flow guide member (6) comprises a fourth flow guide surface (61) which gradually slopes downward from the water inlet end of the filter material (2) toward the inner wall of the shell (1); and the third gap (12) is at least partially projected onto the fourth flow guide surface (61).

9. The filter element according to claim 8, characterized in that: The starting end of the fourth flow-guiding surface (61) is substantially in contact with the water inlet end of the filter material (2), and a fifth gap (14) is formed between the end of the fourth flow-guiding surface (61) and the inner wall of the housing (1).

10. The filter element according to claim 9, characterized in that: The third flow guiding surface (51) and / or the fourth flow guiding surface (61) are arc-shaped surfaces.

11. The filter element according to claim 8, characterized in that: The third flow guide member (5) and the fourth flow guide member (6) form at least one group, and each group of the third flow guide member (5) and the fourth flow guide member (6) are arranged at intervals along the extension direction of the filter material (2).

12. The filter element according to claim 8, characterized in that: The shell (1) is cylindrical, the filter material (2) is a roll-type membrane extending in the axial direction of the shell (1), a surrounding frame (7) is provided in the shell (1) and is sleeved on the outer periphery of the roll-type membrane, and the first flow guide member (3), the second flow guide member (4), the third flow guide member (5) and the fourth flow guide member (6) are all arranged on the surrounding frame (7) at intervals along the axial direction of the shell (1).

13. The filter element according to claim 12, characterized in that: The shell (1) is also provided with a first end cover (81) and a second end cover (82) for mounting the two ends of the roll film, and the two ends of the surrounding frame (7) are respectively abutted against the first end cover (81) and the second end cover (82).

14. A water purifier, characterized in that: A filter element as claimed in any one of claims 1 to 13.

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