Self-cleaning filter

By designing a self-cleaning filter, the impurities inside the filter element are automatically moved by the blade and scraper structure, combined with vibration cleaning by a pulse device, which solves the problem of traditional filters requiring manual cleaning and improves filtration efficiency and service life.

CN223760547UActive Publication Date: 2026-01-06XINXIANG DESHENGWEI FILTER PURIFICATION EQUIP CO LTD
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Patent Information

Application Number
CN202423291873.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-06
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Traditional filters require manual disassembly and cleaning of the filter element periodically, which is cumbersome, prone to damage, and difficult to control the cleaning frequency, affecting filtration efficiency and lifespan.

Method used

Design a self-cleaning filter that uses a blade and scraper structure. It utilizes airflow to drive the shaft to rotate, and the scraper moves the inner wall of the filter cartridge to clean it. Combined with a pulse device for vibration cleaning, it achieves automated cleaning.

Benefits of technology

It achieves automated cleaning of filter elements, improves filtration efficiency and device usability, avoids the tedious operation and potential damage of manual cleaning, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a self-cleaning filter, which relates to the technical field of filters, and comprises a filter cartridge assembly, the filter cartridge assembly is composed of a filter element cartridge and annular mounting plates arranged on the two sides, the ends, far away from each other, of the two annular mounting plates are provided with mounting discs, bearings are arranged in the mounting discs, and connecting rods are arranged between the bearings and the mounting discs; the cleaning assembly is composed of a rotating shaft arranged in the bearing and a blade plate, the blade plate is arranged on the rotating shaft, a scraping plate is arranged at the end, away from the rotating shaft, of the blade plate, under the action of the blade plate, the contact face of the rotating shaft and airflow is increased, and after the airflow makes contact with the blade plate, the rotating shaft is driven to rotate in the bearing under the action of the blade plate; the inner wall of the filter element cylinder is stirred and cleaned by a scraper, so that the filter element cylinder can still be cleaned and filtered by the device in the filtering process, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a self-cleaning filter. Background Technology

[0002] In many filtration systems, as the filtration process continues, impurities gradually accumulate on the surface of the filter element, causing the filter element to become clogged, reducing filtration efficiency, and thus affecting the overall system performance.

[0003] Traditional filters often require manual disassembly and cleaning of the filter element periodically, which is not only cumbersome, time-consuming and labor-intensive, but may also damage the filter element and filter during disassembly and installation, affecting their service life;

[0004] In addition, it is difficult to accurately control the frequency of manual cleaning. If cleaning is not timely, it will affect the filtration effect, while cleaning too frequently will increase maintenance costs. Therefore, using a pulse device to clean the filter cartridge is more efficient than manual cleaning and does not require disassembly.

[0005] Therefore, this utility model proposes a self-cleaning filter. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies and propose a self-cleaning filter.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a self-cleaning filter, comprising:

[0008] A filter cartridge assembly, comprising a filter cartridge and annular mounting plates on both sides, wherein each of the two annular mounting plates is provided with a mounting plate at one end away from each other, a bearing is provided inside the mounting plate, and a connecting rod is provided between the bearing and the mounting plate;

[0009] A cleaning assembly, comprising a rotating shaft and a blade disposed within a bearing, the blade being disposed on the rotating shaft, and a scraper being disposed at the end of the blade away from the rotating shaft.

[0010] Furthermore, the end of the scraper away from the blade contacts the inner wall of the filter cartridge.

[0011] The beneficial effect of adopting the above-mentioned further solution is that when the blade rotates inside the filter cartridge, it can drive the scraper to contact the inner wall of the filter cartridge. At this time, under the action of the scraper, the filter cartridge is moved by the scraper, causing the impurities attached to the filter cartridge to fall off.

[0012] Furthermore, there are a total of nine blades, and the nine blades are arranged in groups of three, with the three groups of blades rotating clockwise from left to right on the rotating shaft.

[0013] The beneficial effects of adopting the above-mentioned further solution are: under the action of the blade, the contact surface between the rotating shaft and the airflow is increased. When the airflow comes into contact with the blade, under the action of the blade, the rotating shaft is driven to rotate in the bearing, so that the scraper can move and clean the inner wall of the filter cartridge.

[0014] Furthermore, there are three connecting rods in total, and the three connecting rods are arranged in a ring, with the included angle between any two adjacent connecting rods being equal.

[0015] The beneficial effects of adopting the above-mentioned further solution are: under the action of the connecting rod, it is used to install and support the bearing, and the stability of the bearing during use is increased by setting three connecting rods.

[0016] Furthermore, a limiting disc is provided at one end of the rotating shaft located outside the bearing. There are two limiting discs in total, and the two limiting discs are symmetrical about the center of the rotating shaft.

[0017] The beneficial effect of adopting the above-mentioned further solution is that, under the action of the limiting plate, the rotating shaft is limited, preventing the rotating shaft from shifting left and right between the two bearings during use, which would cause the rotating shaft to separate from the bearings.

[0018] Furthermore, a sealing ring is embedded in the annular mounting plate, and the diameter of the sealing ring is adapted to the diameter of the mounting plate.

[0019] The beneficial effect of adopting the above-mentioned further solution is that, under the action of the sealing ring, the sealing performance between the two filter cartridge assemblies after they are fitted together is increased, preventing impurities from entering the filter cartridge through the gap between the two filter cartridge assemblies during the filtration process.

[0020] Furthermore, the mounting plate has mounting holes on the outer side of the sealing ring. The mounting holes are arranged in a ring, and the included angle between two adjacent mounting holes is equal.

[0021] The beneficial effect of adopting the above-mentioned further solution is that during the installation process, the mounting plate is fixed to the mounting point through the mounting holes and bolts, so that the filter cartridge assembly is connected to the mounting point.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. In this utility model, the contact surface between the rotating shaft and the airflow is increased under the action of the blade. When the airflow comes into contact with the blade, the rotating shaft is driven to rotate in the bearing under the action of the blade, so that the scraper moves and cleans the inner wall of the filter cartridge. This allows the device to still clean and filter the filter cartridge during the filtration process, thereby improving the practicality of the device.

[0024] 2. In this utility model, during the self-cleaning process of the filter, the filter cartridge is vibrated and cleaned by activating the pulse assembly. At this time, under the action of the pulse, the rotating shaft is driven to rotate inside the filter cartridge, so that the scraper contacts the inner wall of the filter cartridge. The filter cartridge is deformed by the movement of the filter cartridge, and in conjunction with the pulse device, the impurities attached to the filter cartridge are removed, thereby further improving the self-cleaning effect. Attached Figure Description

[0025] Figure 1 This is a front view of a self-cleaning filter according to the present invention;

[0026] Figure 2 This is an exploded view of a self-cleaning filter according to the present invention;

[0027] Figure 3 This is a structural diagram of the cleaning component in a self-cleaning filter according to the present invention;

[0028] Figure 4 This is an exploded view of the filter cartridge assembly in a self-cleaning filter according to the present invention.

[0029] Attached Figure

[0030] 1. Filter cartridge assembly; 11. Annular mounting plate; 12. Filter cartridge; 13. Mounting disc; 131. Sealing ring; 132. Mounting hole; 14. Connecting rod; 15. Bearing;

[0031] 2. Cleaning components; 21. Shaft; 22. Blade; 23. Scraper; 24. Limit plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figure 1-4 As shown, this utility model provides a technical solution: a self-cleaning filter, comprising:

[0034] The filter cartridge assembly 1 consists of a filter cartridge 12 and annular mounting plates 11 arranged on both sides. Each of the two annular mounting plates 11 is provided with a mounting plate 13 at one end that is far apart from each other. A bearing 15 is provided inside the mounting plate 13, and a connecting rod 14 is provided between the bearing 15 and the mounting plate 13.

[0035] Cleaning component 2 consists of a rotating shaft 21 housed within bearing 15 and impellers 22. Impellers 22 are mounted on the rotating shaft 21, with a scraper 23 at the end of the impeller 22 furthest from the shaft 21. The end of the scraper 23 furthest from the impeller 22 contacts the inner wall of the filter cartridge 12. There are nine impellers 22 in total, arranged in groups of three. The three groups of impellers 22 rotate clockwise from left to right on the rotating shaft 21. An installation plate 13 is located on the outer side of the sealing ring 131. The mounting holes 132 are arranged in a ring, and the included angle between two adjacent mounting holes 132 is equal. Under the action of the blade 22, the contact surface between the rotating shaft 21 and the airflow is increased. When the airflow comes into contact with the blade 22, the blade 22 drives the rotating shaft 21 to rotate in the bearing 15, so that the scraper 23 moves and cleans the inner wall of the filter cartridge 12. This allows the device to still clean and filter the filter cartridge 12 during the filtration process, thereby improving the practicality of the device.

[0036] Furthermore, such as Figure 2 - Figure 3 As shown: During the self-cleaning process of the filter, the filter cartridge 12 is vibrated and cleaned by activating the pulse assembly. At this time, under the action of the pulse, the rotating shaft 21 is driven to rotate inside the filter cartridge 12, so that the scraper 23 contacts the inner wall of the filter cartridge 12. The filter cartridge 12 is deformed by the pulse device, which causes the impurities attached to the filter cartridge 12 to fall off, thereby further improving the self-cleaning effect.

[0037] The above solutions also suffer from poor stability of bearing 15 during use, such as... Figure 2 As shown: In this scheme, there are three connecting rods 14, and the three connecting rods 14 are arranged in a ring. The included angle between any two adjacent connecting rods 14 is equal. Under the action of the connecting rods 14, the bearing 15 is installed and supported. The stability of the bearing 15 during use is increased by setting three connecting rods 14.

[0038] The above solutions also have the problem of displacement of the rotating shaft 21 during use, such as... Figure 3 As shown: In this solution, a limiting disk 24 is provided at one end of the rotating shaft 21 located outside the bearing 15. There are two limiting disks 24 in total, and the two limiting disks 24 are symmetrical about the center of the rotating shaft 21. Under the action of the limiting disks 24, the rotating shaft 21 is limited, so as to prevent the rotating shaft 21 from shifting left and right between the two bearings 15 during use, which would cause the rotating shaft 21 to separate from the bearing 15.

[0039] The above solution still has a sealing problem at the connection point between the filter cartridge assembly 1 and the connection point, such as... Figure 4As shown: In this scheme, a sealing ring 131 is embedded in the annular mounting plate 11. The diameter of the sealing ring 131 is adapted to the diameter of the mounting plate 13. Under the action of the sealing ring 131, the sealing performance between the two filter cartridge assemblies 1 is increased, and impurities are prevented from entering the filter cartridge 12 through the gap between the two filter cartridge assemblies 1 during the filtration process.

[0040] Working principle: such as Figure 1-4 As shown, the filter cartridge assembly 1 is first installed in the designated filter through the mounting plate 13. Then, it is connected and fixed to the filter after passing through the mounting hole 132 with a mounting bolt. After installation, the mounting plate 13 increases the sealing effect on both sides of the filter cartridge assembly 1. When in use, the filter is turned on. When the airflow comes into contact with the blade 22, the blade 22 drives the rotating shaft 21 to rotate within the bearing 15, causing the scraper 23 to clean the inner wall of the filter cartridge 12. This allows the device to clean the filter cartridge 12 even during filtration. Furthermore, during the self-cleaning process, the pulse assembly is activated to vibrate and clean the filter cartridge 12. Under the action of the pulse, the rotating shaft 21 rotates within the filter cartridge 12, causing the scraper 23 to contact the inner wall of the filter cartridge 12. The filter cartridge 12 deforms due to the pulse, and in conjunction with the pulse device, impurities attached to the filter cartridge 12 are removed.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A self-cleaning filter, characterized by, Include: Filter cartridge assembly (1), the filter cartridge assembly (1) is composed of filter core cartridge (12) and the ring-shaped mounting plate (11) arranged on both sides, the two ring-shaped mounting plates (11) are provided with mounting disc (13) at the end away from each other, the bearing (15) is arranged in the mounting disc (13), the connecting rod (14) is arranged between the bearing (15) and mounting disc (13); Cleaning assembly (2), the cleaning assembly (2) is composed of rotating shaft (21) arranged in bearing (15) and blade (22), the blade (22) is arranged on rotating shaft (21), the scraper (23) is arranged at the end of blade (22) away from rotating shaft (21).

2. A self-cleaning filter according to claim 1, characterized in that: The end of the scraper (23) away from the blade (22) is in contact with the inner wall of the filter core cartridge (12).

3. A self-cleaning filter according to claim 1, wherein: The blade (22) is provided with nine, and the nine blades (22) are three groups, and the three groups of blades (22) are clockwise rotated on the rotating shaft (21) from left to right.

4. A self-cleaning filter according to claim 1, wherein: The connecting rod (14) is provided with three, and the three connecting rods (14) are annularly distributed, and the included angle between the two adjacent connecting rods (14) is equal.

5. A self-cleaning filter according to claim 1, wherein: The end of the rotating shaft (21) outside the bearing (15) is provided with a limiting disc (24), the limiting disc (24) is provided with two, and the two limiting discs (24) are symmetrical with the center of the rotating shaft (21).

6. A self-cleaning filter according to claim 1, wherein: The sealing ring (131) is embedded and mounted on the ring-shaped mounting plate (11), and the diameter of the sealing ring (131) is matched with the diameter of the mounting disc (13).

7. A self-cleaning filter according to claim 6, wherein: The mounting hole (132) is arranged on the outer side of the sealing ring (131) of the mounting disc (13), the mounting hole (132) is annularly distributed, and the included angle between the two adjacent mounting holes (132) is equal.