Filter element structure and water purifier with same

Abstract

The utility model relates to a filter element structure and a water purifier with the filter element structure, the filter element structure comprises a shell and a filter material arranged in the shell, the filter element structure is characterized by further comprising a cleaning piece which is arranged in the shell and is positioned on the periphery of the filter material, the cleaning piece is provided with a cleaning part made of a flexible material, and the cleaning part is provided with a water inlet and a water outlet. The filter material is rotatably arranged in the shell, and the cleaning piece is configured as follows: the cleaning part can be in contact with the outer wall of the filter material when the filter material rotates; and / or the cleaning piece is configured to rotate around the filter material, and the cleaning part can be in contact with the outer wall of the filter material when the cleaning piece rotates. 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.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a filter element structure and a water purifier with the filter element structure. 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 structure 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 filter element structure in view of the above prior art.

[0007] The technical solution adopted by the utility model to solve the first technical problem mentioned above is: a filter element structure, including a shell and a filter material arranged in the shell, characterized in that it also includes a cleaning piece arranged in the shell and located outside the filter material, the cleaning piece has a cleaning portion made of a flexible material, the filter material is rotatably arranged in the shell, and the cleaning piece is configured so that: the cleaning portion can contact the outer wall of the filter material when the filter material rotates; and / or the cleaning piece is configured to rotate around the filter material and the cleaning portion can contact the outer wall of the filter material when the cleaning piece rotates.

[0008] Preferably, the interior of the shell is hollow and a water inlet is provided on the shell, a raw water channel is formed between the water inlet end of the filter material and the inner wall of the shell, the raw water channel is connected to the water inlet, and the cleaning element is constrained on the inner wall of the shell and located in the raw water channel.

[0009] In order to improve the cleaning effect of the filter screen, there are at least two cleaning members, which are spaced apart on the inner wall of the shell.

[0010] In order to achieve stable installation of the cleaning member, a mounting portion for fixing the cleaning member is provided on the inner wall of the shell, and the cleaning member is configured as follows: when the cleaning member is fixedly installed on the mounting portion, the cleaning portion is exposed from the mounting portion and arranged toward the filter material.

[0011] In order to divert the dirt scraped off the surface of the filter element to improve the dirt treatment effect, two baffles are provided on the inner wall of the shell on both sides of the mounting portion, and the outer end of each baffle is narrowed toward the mounting portion. The two baffles and the inner wall of the shell jointly limit a dirt collecting cavity open to the filter material.

[0012] Preferably, a dirt collecting groove is provided on the housing below the extension direction of the dirt collecting cavity, and a sewage outlet is provided in the dirt collecting groove, so that the dirt scraped from the surface of the filter element flows directly into the dirt collecting groove through the dirt collecting cavity, thereby achieving efficient dirt collection.

[0013] In order to improve the sewage collection efficiency, preferably, the wall of the sewage collecting tank is at least partially a first slope that gradually slopes downward from the outside to the inside.

[0014] In order not to affect the water flow when the filter element is in use and to facilitate sewage discharge when the filter element is cleaned, the sewage outlet is also detachably connected with a plug. The plug is used to block the sewage outlet when the filter element is in use, so the filtration of the filter element is not affected.

[0015] Furthermore, the shell is cylindrical, the water inlet is provided at the first end of the shell, the sewage collecting tank is provided at the second end of the shell, and the inner bottom wall of the second end of the shell is at least partially a second inclined surface that gradually slopes downward toward the sewage collecting tank. In this way, the sewage can be automatically discharged into the sewage collecting tank through the second inclined surface, further improving the sewage collection efficiency.

[0016] Preferably, the filter material is a roll film extending in the axial direction of the housing, and the cleaning part is a scraper or bristles arranged in the axial direction of the roll film. The bristles can be made of materials such as plastic filaments, brown filaments or bristles, and the scraper can be a brush strip or brush sheet made of materials such as rubber, silicone, etc., or other existing technologies.

[0017] In order to realize the rotation of the filter material, an end cover for installing the filter material is further provided in the shell. The end cover can rotate relative to the shell under the action of an external force or driven by a driving mechanism to drive the filter material to rotate.

[0018] In order to facilitate users to rotate the end cover, the end cover is at least partially exposed from the shell and the exposed part of the end cover is sealed to the shell. The part of the end cover exposed from the shell has an operating part for applying external force.

[0019] Preferably, the driving mechanism is a driving motor, and the driving motor is drivingly connected to the end cover.

[0020] The technical solution adopted by the utility model to solve the second technical problem is: a water purifier, characterized in that: it has the filter element structure as mentioned above.

[0021] Compared with the prior art, the advantages of the utility model are: by arranging a cleaning piece on the periphery of the filter material, the cleaning piece has a cleaning portion made of a flexible material, and the cleaning portion can contact the outer wall of the filter material when the filter material rotates; and / or, the cleaning portion can contact the outer wall of the filter material when the cleaning piece rotates around the filter material, so that the cleaning portion can self-clean the filter material. The filter element has a simple structure, does not need to be manually disassembled, can effectively improve the service life of the filter material and has a good cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the filter element in the first embodiment of the present utility model;

[0023] Figure 2 for Figure 1 A cross-sectional view of

[0024] Figure 3 for Figure 1 Exploded diagram of

[0025] Figure 4This is a schematic diagram of the structure of the housing in the first embodiment of the utility model;

[0026] Figure 5 It is a cross-sectional view of the filter element structure in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] Embodiment 1:

[0029] like Figures 1 to 4 The figure shows a preferred embodiment of a filter element structure and a water purifier having the filter element structure of the utility model. The filter element structure in this embodiment comprises a housing 1 , a filter material 2 and a cleaning element 3 .

[0030] The shell 1 is hollow inside and is provided with a water inlet 1a, a water outlet 1b and a sewage outlet 14. 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 14 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, and the cross-section of the filter material 2 is annular. A raw water channel 10 is formed between the water inlet end of the filter material 2 and the inner wall of the shell 1, and the raw water channel 10 is connected to the water inlet 1a.

[0031] The cleaning member 3 is disposed in the housing 1 and is located outside the filter material 2, and the cleaning member 3 has a cleaning portion 31 made of a flexible material. The filter material 2 is rotatably disposed in the housing 1, and the cleaning member 3 is configured such that: when the filter material 2 rotates, the cleaning portion 31 can contact the outer wall of the filter material 2; and / or, the cleaning member 3 is configured to rotate around the filter material 2 and when the cleaning member 3 rotates, the cleaning portion 31 can contact the outer wall of the filter material 2. Figure 3 As shown, the cleaning portion 31 is arranged along the axial direction of the filter material 2 and its length is substantially close to the axial length of the filter material 2). The cleaning portion 31 made of a flexible material can be a brush made of plastic wire, brown wire or bristle, or a scraper made of rubber, silicone or other materials, or other prior art.

[0032] like Figure 2 As shown, the cleaning member 3 is constrained on the inner wall of the shell 1 and is located in the raw water channel 10; the shell 1 is also provided with an end cover 5 for installing the filter material 2 (the existing installation method can be adopted to ensure that the filter material 2 and the end cover 5 are fixedly installed), and the end cover 5 can rotate relative to the shell 1 under the action of external force to drive the filter material 2 to rotate.

[0033] like Figure 4As shown, the specific installation method of the cleaning member 3 is as follows: in this embodiment, a mounting portion 11 for fixing the cleaning member 3 is provided on the inner wall of the housing 1, and the cleaning member 3 is configured as follows: when the cleaning member 3 is fixedly mounted on the mounting portion 11, the cleaning portion 31 is exposed from the mounting portion 11 and is disposed toward the filter material 2; Figure 4 As shown, the mounting portion 11 is two mounting plates arranged opposite to each other, and a slot is formed between the two mounting plates for the cleaning member 3 to be installed therein. In addition, in order to achieve a better cleaning effect, there are at least two cleaning members 3, which are spaced apart on the inner wall of the housing 1. Figure 3 As shown, there are two cleaning members 3 in this embodiment, and they are symmetrically arranged on the inner wall of the housing 1.

[0034] Two stoppers 12 are provided on the inner wall of the housing 1, located on both sides of the mounting portion 11, and the outer ends of each stopper 12 are narrowed toward the mounting portion 11, and the two stoppers 12 and the inner wall of the housing 1 jointly define a dirt collection cavity 40 open toward the filter material 2. In addition, a dirt collection groove 13 is provided on the housing 1 below the extension direction of the dirt collection cavity 40, and a drain port 14 is provided in the dirt collection groove 13, and at least a portion of the groove wall of the dirt collection groove 13 is a first inclined surface 131 that gradually extends downward from the outside to the inside.

[0035] The sewage outlet 14 is also detachably connected to a plug 7, which is used to plug the sewage outlet 14 when the filter element is in normal use; when the filter element is cleaned, the plug 7 is pulled open to discharge dirt from the plug 7.

[0036] like Figure 2 and Figure 5 As shown, the sewage collecting tank 13 is provided at the second end of the housing 1, and at least a part of the inner bottom wall of the second end of the housing 1 is a second inclined surface 15 which gradually slopes downward toward the sewage collecting tank 13. In this way, the dirty water at the second end of the housing 1 can be automatically collected into the sewage collecting tank 13.

[0037] The end cover 5 is at least partially exposed to the housing 1 and the exposed portion of the end cover 5 is sealed and connected to the housing 1. The portion of the end cover 5 exposed to the housing 1 has an operating portion 51 for applying external force. The operating portion 51 is a handle, such as Figure 1 As shown, the operating portion 51 is a straight-line protrusion, which is convenient for rotating the end cover.

[0038] The cleaning process of the above-mentioned filter element structure is as follows: the user rotates the filter material 2 along its own axis by grasping the operating part 51, and due to the cleaning member 3 arranged on the inner wall of the shell 1, the cleaning part 31 on the cleaning member 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 the dirt scraped off by the cleaning part 31 from the water inlet end of the filter material 2 (i.e.: the outer peripheral wall of the filter material 2) can be guided to the dirt collecting tank 13 by using the dirt collecting chamber 40, so that it can be discharged through the sewage outlet 14 in the sewage collecting tank 13.

[0039] Embodiment 2:

[0040] Different from the first embodiment, the end cover 5 in this embodiment can be driven by the driving mechanism 6 to rotate relative to the housing 1 to drive the filter material 2 to rotate. Figure 5 As shown, the driving mechanism 6 in this embodiment is a driving motor, and the driving motor is drivingly connected to the end cover 5 .

[0041] When cleaning the filter element, the filter material 2 can be driven to rotate along its own axis by controlling the operation of the driving motor, and the cleaning member 3 provided on the inner wall of the housing 1 and the cleaning portion 31 on the cleaning member 3 can contact the outer wall of the filter material 2, thereby realizing automatic cleaning of the outer peripheral wall of the filter material 2. This method does not require manual force.

[0042] 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 structure, comprising a housing (1) and a filter material (2) arranged in the housing (1), characterized in that The invention also comprises a cleaning member (3) which is arranged in the housing (1) and located outside the filter material (2), the cleaning member (3) having a cleaning portion (31) made of a flexible material, the filter material (2) being rotatably arranged in the housing (1), the cleaning member (3) being configured such that: when the filter material (2) rotates, the cleaning portion (31) can contact the outer wall of the filter material (2); and / or, the cleaning member (3) is configured such that it can rotate around the filter material (2) and when the cleaning member (3) rotates, the cleaning portion (31) can contact the outer wall of the filter material (2).

2. The filter element structure according to claim 1, characterized in that: The shell (1) is hollow inside and is provided with a water inlet (1a). A raw water channel (10) is formed between the water inlet end of the filter material (2) and the inner wall of the shell (1). The raw water channel (10) is connected to the water inlet (1a). The cleaning element (3) is constrained on the inner wall of the shell (1) and is located in the raw water channel (10).

3. The filter element structure according to claim 2, characterized in that: There are at least two cleaning members (3) which are arranged at intervals on the inner wall of the housing (1).

4. The filter element structure according to claim 2, characterized in that: The inner wall of the housing (1) is provided with a mounting portion (11) for fixing the cleaning member (3), and the cleaning member (3) is configured such that, when the cleaning member (3) is fixedly mounted on the mounting portion (11), the cleaning portion (31) is exposed from the mounting portion (11) and is arranged toward the filter material (2).

5. The filter element structure according to claim 4, characterized in that: The inner wall of the shell (1) is provided with two stoppers (12) located on both sides of the mounting portion (11); the outer end of each stopper (12) is narrowed toward the mounting portion (11); the two stoppers (12) and the inner wall of the shell (1) jointly define a dirt collecting cavity (40) open toward the filter material (2).

6. The filter element structure according to claim 5, characterized in that: The housing (1) is also provided with a sewage collecting groove (13) below the sewage collecting cavity (40) in the extending direction, and a sewage discharge port (14) is provided in the sewage collecting groove (13).

7. The filter element structure according to claim 6, characterized in that: At least part of the wall of the dirt collecting tank (13) is a first inclined surface (131) which gradually slopes downward from the outside to the inside.

8. The filter element structure according to claim 7, characterized in that: The sewage outlet (14) is also detachably connected to a plug (7).

9. The filter element structure according to claim 6, characterized in that: The shell (1) is cylindrical, the water inlet (1a) is provided at a first end of the shell (1), the sewage collecting tank (13) is provided at a second end of the shell (1), and the inner bottom wall of the second end of the shell (1) is at least partially a second inclined surface (15) which gradually inclines downward in a direction close to the sewage collecting tank (13).

10. The filter element structure according to claim 9, characterized in that: The filter material (2) is a roll-type membrane extending in the axial direction of the housing (1), and the cleaning portion (31) is a scraper or a brush disposed in the axial direction of the roll-type membrane.

11. The filter element structure according to any one of claims 2 to 10, characterized in that: An end cover (5) for mounting the filter material (2) is also provided in the housing (1). The end cover (5) can rotate relative to the housing (1) under the action of an external force or driven by a driving mechanism (6) to drive the filter material (2) to rotate.

12. The filter element structure according to claim 11, characterized in that: The end cover (5) is at least partially exposed from the shell (1), and the exposed portion of the end cover (5) is sealed to the shell (1), and the portion of the end cover (5) exposed from the shell (1) has an operating portion (51) for facilitating application of external force.

13. The filter element structure according to claim 11, characterized in that: The driving mechanism (6) is a driving motor, and the driving motor is drivingly connected to the end cover (5).

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

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