Spiral internal scraping type self-cleaning filter

Abstract

The utility model discloses a spiral internal scraping type self-cleaning filter which comprises an outer cylinder, and a filter cylinder is fixedly arranged in the outer cylinder. A solution needing to be filtered is placed in the filter cartridge, the filtered solution can pass through the filter screen, after impurities in the solution are filtered out through the filter screen, the filtered solution can be discharged through the discharging valve, in the filtering process, the rotating shaft and the conveying screw blade in the filter cartridge rotate, and in the rotating process, the rotating shaft and the conveying screw blade can rotate, so that the filtering effect is good. According to the device, impurities on the inner wall of a filter cylinder can be scraped off, the scraped impurities can be conveyed to the position above the filter cylinder through a conveying screw blade, then overflows from the edge of the filter cylinder and enters the position above an annular filter screen between an outer cylinder and the filter cylinder, a rotating shaft rotates to drive a connecting shaft to rotate, and the impurities on a second filter screen can be cleaned through a scraping plate; and impurities flow out through the dirt discharge groove, so that the impurities in the filter cartridge are cleaned through rotation of the conveying spiral blade in the filtering process.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technical field especially relates to a spiral inner scraping type self -cleaning filter. BACKGROUND

[0002] Filters play a crucial role in the technical field, and they are widely used in various systems and devices to ensure the purity and safety of fluids or gases. In industrial production processes, filters can effectively remove impurities such as particulate matter, dust, oil stains, etc. from raw materials or products, ensuring smooth operation of the production line and quality of the final product. For example, in the chemical industry, precision filters are used to separate solid catalysts from reaction media, preventing interference with subsequent processes. At the same time, in the field of air purification, high-efficiency filter screens can capture tiny particulate matter such as pollen, smoke, and bacteria, providing clean air for indoor environments. In addition, filters also play a key role in water treatment systems, removing suspended solids, organic matter, and heavy metals from water through multiple filtration mechanisms to ensure the safety and hygiene standards of drinking water.

[0003] Although the filters in the prior art can effectively filter impurities in fluids or gases, ensuring the normal operation of the system and the purity of the product, the filter screen will gradually accumulate dirt and blockages during use. These dirt not only reduces the filtering efficiency, but also may cause pressure to the system, affecting overall performance. Therefore, the filter screen needs to be cleaned and maintained regularly to ensure its continuous and effective filtering function. However, this process is often tedious, requiring manual disassembly, cleaning, drying, and reinstallation of the filter screen, which not only consumes time and effort, but also may cause damage to the filter screen or improper installation due to improper operation, thereby affecting the filtering effect and system operation. SUMMARY

[0004] The utility model aims at providing a spiral inner scraping type self -cleaning filter to solve the above insufficient place among the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a spiral inner scraping type self -cleaning filter, comprising an outer cylinder, a filter cylinder is fixedly installed inside the outer cylinder, the bottom of the filter cylinder is closed, the top end of the filter cylinder is open, the inner wall between the filter cylinder and the outer cylinder is a cavity, a rotating shaft is fixedly installed inside the filter cylinder, a conveying spiral blade is fixedly installed on the rotating shaft, the conveying spiral blade is tightly attached to the inner wall of the filter cylinder, the top end of the conveying spiral blade is flush with the top end opening of the filter cylinder, a cleaning scraping assembly is arranged at the top end of the rotating shaft, and an annular filter screen is arranged between the filter cylinder and the outer cylinder.

[0006] As a further description of the above technical scheme: a motor is fixedly installed at the bottom end of the outer cylinder, and the output end of the motor is in transmission connection with the rotating shaft.

[0007] As the further description of the above technical solutions: the side wall of the outer cylinder is provided with a plurality of sewage slots, the plurality of sewage slots are arranged above the annular filter screen, the top end of the filter cartridge is sleeved with a circular truncated cone ring, the circular truncated cone ring is arranged at the top end of the annular filter screen, and the bottom end of the filter cartridge is fixedly installed with a first circular truncated cone.

[0008] As the further description of the above technical solutions: the cleaning scraper assembly comprises a connecting shaft, the connecting shaft is fixedly installed at the top end of the rotating shaft, connecting plates are fixedly installed at the two sides of the connecting shaft, scraper plates are fixedly installed at one end of the two connecting plates, and the two sides of the scraper plates are respectively attached to the inner wall of the outer cylinder and the outer side wall of the circular truncated cone ring.

[0009] As the further description of the above technical solutions: the side wall of the outer cylinder is fixedly sleeved with a collecting groove, and the collecting groove is arranged below the sewage slot.

[0010] As the further description of the above technical solutions: the bottom end of the outer cylinder is fixedly installed with a plurality of supporting columns, and the side wall of the outer cylinder is communicatively provided with a discharge valve.

[0011] The utility model provides a spiral inner scraping type self -cleaning filter. Have the following beneficial effect: the solution that needs to filter is placed to the inside of filter cartridge, the solution of filtering can pass through filter screen, the impurity in the solution is filtered out after filter screen, the solution after filtering is completed can pass through the discharge valve and go out, in the process of filtering, the rotating shaft and the delivery spiral vane in the filter cartridge rotate, in the process of rotation, can scrape the impurity of filter cylinder inner wall, the impurity after scraping can be transported to the top of filter cartridge through the delivery spiral vane, then overflow from the edge of filter cartridge, enter the top of annular filter screen between outer cylinder and filter cartridge, the rotation of rotating shaft drives the rotation of the connecting shaft on, can realize the impurity on the second filter screen is cleaned through the scraper, and the impurity is flowed out through the sewage slot, realize in the process of filtering, the impurity in the filter cartridge is cleaned through the rotation of the delivery spiral vane.

[0012] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and not intended to limit the disclosure.

[0013] This application file provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model proposes a whole three-dimensional structure schematic diagram of spiral inner scraping type self -cleaning filter;

[0015] Figure 2 It is three-dimensional explosion structure schematic diagram for the utility model outer cylinder inside.

[0016] Figure 3 It is the sectional view structure schematic diagram of the utility model;

[0017] Figure 4 It is the A place enlarged structure schematic diagram of the utility model Figure 3 ;

[0018] Figure 5 It is the local three-dimensional sectional view structure schematic diagram of the utility model.

[0019] Legend:

[0020] 1, outer cylinder;2, support column;3, discharge valve;4, filter cartridge;5, rotating shaft;6, conveying spiral blade;7, first circular table;8, motor;9, circular table ring;10, annular filter screen;11, connecting shaft;12, connecting plate;13, scraper;14, sewage tank;15, collection tank. Specific implementation

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Referring to Figures 1-5 , a spiral inner scraping type self-cleaning filter, comprising an outer cylinder 1, a filter cartridge 4 is fixedly installed inside the outer cylinder 1, the bottom of the filter cartridge 4 is closed, the top end of the filter cartridge 4 is open, the filter cartridge 4 and the inner wall of the outer cylinder 1 are a cavity, a rotating shaft 5 is fixedly installed inside the filter cartridge 4, a conveying spiral blade 6 is fixedly installed on the rotating shaft 5, the conveying spiral blade 6 is tightly attached to the inner wall of the filter cartridge 4, the top end of the conveying spiral blade 6 is flush with the top end opening of the filter cartridge 4, a cleaning scraping assembly is arranged at the top end of the rotating shaft 5, and an annular filter screen 10 is arranged between the filter cartridge 4 and the outer cylinder 1;The solution to be filtered is placed inside the filter cartridge 4, the filtered solution can pass through the filter screen, after the impurities in the solution are filtered out by the filter screen, the filtered solution can be discharged through the discharge valve 3, in the filtering process, the rotating shaft 5 and the conveying spiral blade 6 in the filter cartridge 4 rotate, in the rotating process, the impurities on the inner wall of the filter cartridge 4 can be scraped off, the scraped impurities can be conveyed to the top of the filter cartridge 4 by the conveying spiral blade 6, and then overflow from the edge of the filter cartridge 4 to the top of the annular filter screen 10 between the outer cylinder 1 and the filter cartridge 4, the rotation of the rotating shaft 5 drives the connecting shaft 11 above to rotate, so that the impurities on the second filter screen can be cleaned by the scraper 13, and the impurities can flow out through the sewage tank 14, so that the impurities in the filter cartridge 4 are cleaned by the rotation of the conveying spiral blade 6 in the filtering process.

[0023] As a preferred technical scheme of the embodiment, the bottom end of the outer cylinder 1 is fixedly provided with a motor 8, and the output end of the motor 8 is in transmission connection with the rotating shaft 5; the motor 8 can drive the rotating shaft 5 to rotate.

[0024] As a preferred technical scheme of the embodiment, a plurality of blowdown grooves 14 are formed in the side wall of the outer cylinder 1, the plurality of blowdown grooves 14 are formed above the annular filter screen 10, the top end of the filter cartridge 4 is sleeved with a circular truncated cone ring 9, the circular truncated cone ring 9 is arranged at the top end of the annular filter screen 10, and the bottom end of the filter cartridge 4 is fixedly provided with a first circular truncated cone 7; impurities overflowing from the filter cartridge 4 can slide down the circular truncated cone ring 9 and slide to above the annular filter screen 10, and the blowdown grooves 14 are arranged to facilitate the impurities to be scraped out by the scraping assembly and discharged through the blowdown grooves 14.

[0025] As a preferred technical scheme of the embodiment, the scraping assembly comprises a connecting shaft 11, the connecting shaft 11 is fixedly arranged at the top end of the rotating shaft 5, connecting plates 12 are fixedly arranged at the two sides of the connecting shaft 11, scraper plates 13 are fixedly arranged at one end of the two connecting plates 12, and the two sides of the scraper plates 13 are respectively attached to the inner wall of the outer cylinder 1 and the outer side wall of the circular truncated cone ring 9; the rotating shaft 5 drives the connecting shaft 11 to rotate, the rotation of the connecting shaft 11 can drive the two scraper plates 13 at the two ends to rotate through the connecting plates 12, so that the impurities can be scraped.

[0026] As a preferred technical scheme of the embodiment, a collecting groove 15 is fixedly sleeved with the side wall of the outer cylinder 1, and the collecting groove 15 is arranged below the blowdown groove 14; the impurities discharged through the blowdown groove 14 can enter below the collecting groove 15.

[0027] As a preferred technical scheme of the embodiment, a plurality of supporting columns 2 are fixedly arranged at the bottom end of the outer cylinder 1, and a discharging valve 3 is arranged in communication with the side wall of the outer cylinder 1; the supporting columns 2 can support the device and increase the stability of the device, and the discharging valve 3 can be used for discharging the filtered solution.

[0028] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A screw internal scraping self-cleaning filter comprising an outer cylinder (1), characterized in that, The inside of the outer cylinder (1) is fixedly installed with a filter cylinder (4), the bottom of the filter cylinder (4) is closed, the top end of the filter cylinder (4) is open, the space between the filter cylinder (4) and the inner wall of the outer cylinder (1) is a cavity, the inside of the filter cylinder (4) is fixedly installed with a rotating shaft (5), the rotating shaft (5) is fixedly installed with a conveying spiral blade (6), the conveying spiral blade (6) is tightly attached to the inner wall of the filter cylinder (4), the top end of the conveying spiral blade (6) is flush with the top end opening of the filter cylinder (4), the top end of the rotating shaft (5) is provided with a cleaning scraping assembly, and the filter cylinder (4) and the outer cylinder (1) are provided with an annular filter screen (10).

2. A helical scrape-wall self-cleaning filter according to claim 1, characterized in that, The bottom end of the outer cylinder (1) is fixedly installed with a motor (8), and the output end of the motor (8) is in transmission connection with the rotating shaft (5).

3. A helical scrape-wall self-cleaning filter according to claim 1, wherein A plurality of blowdown grooves (14) are formed in the side wall of the outer cylinder (1), the plurality of blowdown grooves (14) are arranged above the annular filter screen (10), the top end of the filter cylinder (4) is sleeved with a circular table ring (9), the circular table ring (9) is arranged at the top end of the annular filter screen (10), and the bottom end of the filter cylinder (4) is fixedly installed with a first circular table (7).

4. A helical scrape-wall self-cleaning filter according to claim 1, wherein The cleaning scraping assembly comprises a connecting shaft (11), the connecting shaft (11) is fixedly installed at the top end of the rotating shaft (5), connecting plates (12) are fixedly installed on the two sides of the connecting shaft (11), scraper plates (13) are fixedly installed at one end of the two connecting plates (12), and the two sides of the scraper plates (13) are respectively attached to the inner wall of the outer cylinder (1) and the outer side wall of the circular table ring (9).

5. A helical scrape-wall self-cleaning filter according to claim 1, wherein The side wall of the outer cylinder (1) is fixedly sleeved with a collecting groove (15), and the collecting groove (15) is arranged below the blowdown groove (14).

6. A helical scrape-wall self-cleaning filter according to claim 1, wherein The bottom end of the outer cylinder (1) is fixedly installed with a plurality of supporting columns (2), and the side wall of the outer cylinder (1) is in communication with a discharging valve (3).

Images