Filter element and water purifier with same

Abstract

The utility model relates to a filter element and a water purifier with the filter element, and the filter element comprises a shell which is provided with a water inlet; the filter material is arranged in the shell, and one end, close to the water inlet, of the filter material is marked as a first end part; the filter element is characterized by further comprising a cleaning part which is arranged in the shell and circumferentially arranged on the periphery of the filter material; the cleaning piece is provided with a cleaning part made of a flexible material, and is configured in a way that the cleaning part can be in contact with the outer wall of the filter material when the cleaning piece moves along the extension direction of the filter material under the action of external force; and the elastic piece is arranged in the shell and acts on the cleaning piece, so that the cleaning piece always has a trend of moving close to the first end part of the filter material. The filter element has the advantages that the filter element is simple in structure, the filter element does not need to be manually disassembled, the service life of a filter material can be effectively prolonged, and the cleaning effect is good. In addition, after the filter element is cleaned, the cleaning piece can be automatically restored to the initial state, and the next filter element cleaning is conveniently executed.

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 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 reverse cleaning method cannot guarantee that the substances attached to the filter element will be cleaned, so the cleaning 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 good cleaning 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] A shell having a water inlet thereon;

[0009] A filter material is disposed in the housing, and an end of the filter material close to the water inlet is referred to as a first end;

[0010] The invention is characterized in that it also includes:

[0011] A cleaning member is disposed in the housing and circumferentially disposed on the outer periphery of the filter material; the cleaning member has a cleaning portion made of a flexible material and is configured such that when the cleaning member moves along the extension direction of the filter material under the action of an external force, the cleaning portion can contact the outer wall of the filter material;

[0012] The elastic member is arranged in the housing and acts on the cleaning member so that the cleaning member always has a tendency to move close to the first end of the filter material.

[0013] Preferably, the shell is cylindrical, the filter material is a rolled membrane extending along the axial direction of the shell, the elastic member and the cleaning member are arranged one above the other along the axial direction of the shell, the elastic member is arranged close to the water inlet, the first end of the elastic member is constrained to a portion of the shell adjacent to the water inlet, and the second end of the elastic member is constrained to the cleaning member.

[0014] In order to realize the installation of the elastic member, an end cap for installing the first end of the filter material is further provided in the housing, and the first end of the elastic member is constrained on the end cap.

[0015] In order to increase the acting force, preferably, there are at least two elastic members, and each elastic member is arranged at intervals on the outer periphery of the filter material.

[0016] Preferably, the elastic member is a spring. A tension spring may also be used.

[0017] There are many kinds of structures of the cleaning member. Preferably, the cleaning member comprises at least two frames spaced apart along the extension direction of the filter material, two adjacent frames are connected by a connecting member, and each frame surrounds the outer periphery of the filter material.

[0018] The first preferred embodiment of the cleaning portion is as follows: the cleaning portion is a scraper, and the inner circumferential wall of each enclosure is made of a flexible material to form the scraper, or the scraper is constrained on the inner circumferential wall of each enclosure.

[0019] The second preferred embodiment of the cleaning portion is as follows: the cleaning portion is a brush, and the brush is constrained on the inner peripheral wall of each of the surrounding frames.

[0020] In order to improve the stability of the movement of the cleaning member, the cleaning member also includes a guide portion provided on the outer wall of the connecting member and extending along the extension direction of the filter material, and a slide groove slidably matched with the guide portion is also provided on the inner wall of the shell.

[0021] In order to realize the movement of the cleaning part, a sewage outlet is opened at the upper end of the shell away from the water inlet, and a plug for sealing the sewage outlet is removably connected to the outside of the shell, and a rope is connected to the plug, and the other end of the rope is constrained on the cleaning part; when the plug is opened and the rope is pulled by external force, the cleaning part can be driven to move along the extension direction of the filter material.

[0022] Preferably, the head of the guide portion is provided with a first mounting hole for mounting the second end of the elastic member, and the tail of the guide portion is further provided with a second mounting hole for connecting the rope.

[0023] 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.

[0024] Compared with the prior art, the utility model has the following advantages: by arranging a cleaning piece on the periphery of the filter material, the cleaning piece has a cleaning part made of a flexible material, and when the cleaning piece moves along the extension direction of the filter material under the action of an external force, the cleaning part can contact the outer wall of the filter material, so as to realize the self-cleaning of the filter material by the cleaning part; the filter element has a simple structure, and there is no need to manually disassemble the filter element, which can effectively increase the service life of the filter material and has a good cleaning effect. In addition, by arranging an elastic part acting on the cleaning piece, the cleaning piece can always have a tendency to move close to the first end of the filter material, so after the filter element is cleaned, the cleaning piece can automatically return to the initial state, which is convenient for the next filter element cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the filter element in the embodiment of the utility model;

[0026] Figure 2 for Figure 1 A cross-sectional view of

[0027] Figure 3 for Figure 1 Another cross-sectional view of (filter material omitted);

[0028] Figure 4 for Figure 1 Schematic diagram of part of the structure (housing omitted);

[0029] Figure 5 It is a schematic diagram of the structure of the cleaning part in the embodiment of the utility model. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] like Figures 1 to 5The 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 , a cleaning element 3 and an elastic element 4 .

[0032] 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 roll-type membrane extending along the axial direction of the housing 1, and the cross section of the filter material 2 is annular. The end of the filter material 2 close to the water inlet 1a is recorded as the first end.

[0033] The cleaning member 3 is arranged in the shell 1 and circumferentially arranged on the outer periphery of the filter material 2; the cleaning member 3 has a cleaning portion 31 made of a flexible material and is configured so that when the cleaning member 3 moves along the extension direction of the filter material 2 under the action of an external force, the cleaning portion can contact the outer wall of the filter material 2; the elastic member 4 is arranged in the shell 1 and acts on the cleaning member 3, so that the cleaning member 3 always has a tendency to move close to the first end of the filter material 2.

[0034] like Figure 2 and Figure 3 As shown, the elastic member 4 and the cleaning member 3 in this embodiment are arranged one above the other along the axial direction of the housing 1, the elastic member 4 is arranged close to the water inlet 1a, the first end of the elastic member 4 is restrained at the portion of the housing 1 adjacent to the water inlet 1a, and the second end of the elastic member 4 is restrained on the cleaning member 3. Figure 4 As shown, the housing 1 is further provided with an end cap 11 for mounting the first end of the filter material 2, and the first end of the elastic member 4 is constrained on the end cap 11. In addition, there are at least two elastic members 4, each of which is spaced apart from the outer periphery of the filter material 2 (such as Figure 4 As shown, there are two elastic members 4, and the elastic members 4 are springs.

[0035] like Figure 5 As shown, the cleaning member 3 includes at least two surrounding frames 32 ( Figure 5 There are three middle enclosures 32), and two adjacent enclosures 32 are connected by connecting members 33, and each enclosure 32 is arranged around the outer periphery of the filter material 2. In this embodiment, each enclosure 32 is circular, and the connecting members 33 are connecting rods. The cleaning portion 31 is a scraper made of rubber, silica gel and other materials. The inner peripheral wall of each enclosure 32 is a flexible material to form the above-mentioned scraper or the scraper is constrained on the inner peripheral wall of each enclosure 32. Of course, the cleaning portion 31 can also be a brush made of plastic wire, brown wire or bristle, and the brush is constrained on the inner peripheral wall of each enclosure 32.

[0036] In addition, the cleaning member 3 further includes a guide portion 34 disposed on the outer wall of the connecting member 33 and extending along the extension direction of the filter material 2, and a slide groove 12 slidably matched with the guide portion 34 is also disposed on the inner wall of the housing 1. Figure 3 As shown, the slide groove 12 is formed by two mounting plates being arranged opposite to each other, so that the guide portion 34 slides along the slide groove 12, thereby ensuring the stability of the movement of the cleaning element 3 and preventing shaking.

[0037] like Figure 3 As shown, in this embodiment, a plug 5 for sealing the outlet of the sewage outlet 1c is detachably connected to the outside of the housing 1, and a rope 6 is connected to the plug 5, and the other end of the rope 6 is constrained on the cleaning member 3; when the plug 5 is opened and the rope 6 is pulled by an external force, the cleaning member 3 can be driven to move along the extension direction of the filter material 2. The head of the guide portion 34 is provided with a first mounting hole 341 for mounting the second end of the elastic member 4, and the tail of the guide portion 34 is also provided with a second mounting hole 342 for connecting the rope 6.

[0038] The cleaning process of the above-mentioned filter element is as follows: the user opens the plug 5 and pulls the rope 6, so that the cleaning piece 3 in the initial state moves as a whole toward the sewage outlet 1c under the action of the pulling force, and during the movement of the cleaning piece 3, the cleaning portion 31 on the cleaning piece 3 can contact the outer wall of the filter material 2 to scrape off the dirt on the outer peripheral wall of the filter material 2, and finally the scraped dirt is discharged through the sewage outlet 1c; in addition, after the cleaning is completed, the rope 6 is loosened, and the cleaning piece 3 can move toward the first end portion close to the filter material 2 under the action of the elastic piece 4, that is: it is finally restored to the initial state, so as to facilitate the cleaning of the entire outer peripheral wall of the filter material next time. In the initial state, the topmost surrounding frame 32 of the cleaning piece 3 is basically close to the first end portion of the filter material 2 (corresponding to Figure 5 Therefore, the entire outer wall of the filter medium can be cleaned.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A filter element, comprising A housing (1) having a water inlet (1a); A filter material (2) is arranged in the housing (1), and an end of the filter material (2) close to the water inlet (1a) is marked as a first end; Features Also includes: A cleaning member (3) is arranged in the housing (1) and circumferentially arranged on the outer periphery of the filter material (2); the cleaning member (3) has a cleaning portion (31) made of a flexible material and is configured such that when the cleaning member (3) moves along the extension direction of the filter material (2) under the action of an external force, the cleaning portion can contact the outer wall of the filter material (2); An elastic member (4) is disposed in the housing (1) and acts on the cleaning member (3) so that the cleaning member (3) always has a tendency to move close to the first end of the filter material (2).

2. The filter element according to claim 1, 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), the elastic member (4) and the cleaning member (3) are arranged one above the other in the axial direction of the shell (1), the elastic member (4) is arranged close to the water inlet (1a), the first end of the elastic member (4) is restrained on a portion of the shell (1) adjacent to the water inlet (1a), and the second end of the elastic member (4) is restrained on the cleaning member (3).

3. The filter element according to claim 2, characterized in that: An end cap (11) for mounting the first end of the filter material (2) is also provided in the housing (1), and the first end of the elastic member (4) is constrained on the end cap (11).

4. The filter element according to claim 3, characterized in that: There are at least two elastic members (4), and each elastic member (4) is arranged at intervals on the outer periphery of the filter material (2).

5. The filter element according to claim 4, characterized in that: The elastic member (4) is a spring.

6. The filter element according to any one of claims 1 to 5, characterized in that: The cleaning member (3) comprises at least two surrounding frames (32) arranged at intervals along the extension direction of the filter material (2), two adjacent surrounding frames (32) being connected via a connecting member (33), and each surrounding frame (32) is arranged around the outer periphery of the filter material (2).

7. The filter element according to claim 6, characterized in that: The cleaning portion (31) is a scraper, and the inner peripheral wall of each enclosure (32) is made of a flexible material to form the scraper or the scraper is constrained on the inner peripheral wall of each enclosure (32).

8. The filter element according to claim 6, characterized in that: The cleaning portion (31) is a brush, and the brush is constrained on the inner peripheral wall of each surrounding frame (32).

9. The filter element according to claim 6, characterized in that: The cleaning member (3) further comprises a guide portion (34) which is arranged on the outer wall of the connecting member (33) and extends along the extension direction of the filter material (2), and a slide groove (12) which slidably cooperates with the guide portion (34) is also arranged on the inner wall of the housing (1).

10. The filter element according to claim 9, characterized in that: A sewage outlet (1c) is provided at the upper end of one end of the shell (1) away from the water inlet (1a); a plug (5) for sealing the outlet of the sewage outlet (1c) is detachably connected to the outside of the shell (1); a rope (6) is connected to the plug (5); the other end of the rope (6) is constrained on the cleaning part (3); when the plug (5) is opened and an external force pulls the rope (6), the cleaning part (3) can be driven to move along the extension direction of the filter material (2).

11. The filter element according to claim 10, characterized in that: The head of the guide portion (34) is provided with a first mounting hole (341) for mounting the second end of the elastic member (4), and the tail of the guide portion (34) is also provided with a second mounting hole (342) for connecting the rope (6).

12. A water purifier, characterized in that: A filter element as claimed in any one of claims 1 to 11.

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