A self-cleaning duct filter

Abstract

This utility model provides a self-cleaning pipeline filter, comprising a first pipeline and a second pipeline. The first pipeline has a flange inlet on its side wall, and the end of the second pipeline is connected to the flange inlet. A filter screen is rotatably connected inside the flange inlet. A scraper is fixed to the end face of the flange inlet and contacts the filter screen. A drain pipe section is located on the side wall of the second pipeline near the filter screen. An electric valve is installed in the drain pipe section. During cleaning, the valve opens the drain pipe section, and simultaneously, the filter screen rotates, causing surface impurities to be scraped off by the scraper. The impurities are discharged through the drain pipe with the fluid. This synchronous operation prevents impurities from accumulating inside the filter, ensuring continuous and efficient operation of the filter and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of filters, and more particularly to the ultimate comfort and fully automatic function of seats. Background Technology

[0002] After a period of use, the filter screen of a pipeline filter will become clogged, requiring it to be removed for cleaning. The filter needs to be taken out of service, and the installation and removal process is quite troublesome.

[0003] Therefore, we propose a self-cleaning pipeline filter to solve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a self-cleaning pipeline filter, including a first pipeline and a second pipeline. The side wall of the first pipeline is provided with a flange inlet, and the end of the second pipeline is connected to the flange inlet. A filter screen is rotatably connected inside the flange inlet. A scraper is fixed to the end face of the flange inlet and contacts the filter screen. A sewage discharge pipeline is provided on the side wall of the second pipeline near the filter screen. An electric valve is installed in the sewage discharge pipeline. The electric valve includes a motor and a valve plate fixed to it. The motor is fixed to the outer wall of the sewage discharge pipeline. The output end of the motor is fixed to the valve plate, and the valve plate cooperates with the inner wall of the sewage discharge pipeline. A first rotating shaft coaxial with the output end of the motor is fixed on the valve plate. A second rotating shaft is slidably connected to the end of the first rotating shaft through the side wall of the sewage discharge pipeline and is rotatably connected to the first pipeline. A driving gear is fixed to one end of the second rotating shaft inside the first pipeline. A driven gear is fixed to the filter screen, and the driving gear and the driven gear are meshed together.

[0005] Normal filtration status

[0006] The valve plate of the electric valve is in the closed position, blocking the sewage pipe section.

[0007] Fluid flows in from the first pipe, is filtered by the filter screen, and then enters the second pipe, where impurities are trapped on the surface of the filter screen.

[0008] Self-cleaning and sewage discharge activated.

[0009] The motor starts when cleaning is required:

[0010] Rotating the valve plate opens the sewage pipe section, allowing impurities to be discharged.

[0011] The first rotating shaft is linked to the second rotating shaft, and drives the filter screen to rotate through gear transmission.

[0012] Impurities are scraped off the surface of the rotating filter screen by a scraper, and the scraped-off impurities are discharged with the fluid through the drain pipe.

[0013] Preferably, the inner wall of the first pipe is square, for cooperating with the driving gear and the driven gear.

[0014] Preferably, the second pipe is bolted to the flange inlet, which simplifies installation and disassembly.

[0015] Preferably, a rubber gasket is installed at the inlet of the second pipe and the flange to achieve a sealing effect.

[0016] Preferably, the first rotating shaft has a square portion at one end, and the second rotating shaft has a square sleeve at one end that mates with the square portion, forming a sliding connection. This allows for slight axial movement of the two shafts (such as for installation error compensation) while ensuring effective torque transmission. It avoids stress concentration in the shaft system caused by rigid connections and improves transmission reliability.

[0017] Compared with related technologies, the self-cleaning pipeline filter provided by this utility model has the following beneficial effects:

[0018] Achieve self-cleaning function and reduce manual maintenance costs.

[0019] This self-cleaning pipeline filter utilizes an electric motor to drive the valve plate and filter screen in tandem, achieving automatic sewage discharge and filter screen surface cleaning. Compared to traditional filters that require shutdown for disassembly and cleaning, it significantly reduces the frequency and cost of manual maintenance, making it particularly suitable for industrial scenarios requiring continuous operation or where frequent shutdowns are difficult.

[0020] High-efficiency sewage discharge and improved filtration efficiency

[0021] During the cleaning process, as the valve plate opens the drain pipe, the filter screen rotates, causing surface impurities to be scraped off by the scraper. These impurities are then discharged with the fluid through the drain pipe. This simultaneous operation prevents impurities from accumulating inside the filter, ensuring continuous and efficient operation of the filter screen and extending its service life. Attached Figure Description

[0022] Figure 1 This is an exploded view of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the first pipeline structure of this utility model;

[0024] Figure 3 This is a schematic diagram showing the relative positions of the valve plate of this utility model.

[0025] Labels: 1. First pipe; 2. Second pipe; 3. Flange inlet; 4. Filter screen; 5. Scraper; 6. Sewage pipe section; 7. Electric valve; 8. Electric motor; 9. Valve plate; 10. First rotating shaft; 11. Second rotating shaft; 12. Drive gear; 13. Driven gear; 15. Rubber pad; 16. Square part; 17. Square sleeve. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0028] Please see Figure 1-3 A self-cleaning pipeline filter is disclosed, which mainly consists of a first pipeline 1 and a second pipeline 2. A flange inlet 3 is provided on the side wall of the first pipeline 1, and the end of the second pipeline 2 is tightly connected to the flange inlet 3 by bolts. This connection method not only simplifies installation and disassembly but also facilitates subsequent maintenance and replacement. To enhance the sealing at the connection, a rubber gasket 15 is installed at the connection between the second pipeline 2 and the flange inlet 3, effectively preventing fluid leakage.

[0029] Inside the flange inlet 3, a filter screen 4 is rotatably connected. This filter screen 4 is used to filter the fluid and trap impurities on its surface. At the same time, a scraper 5 is fixedly installed on the end face of the flange inlet 3. The scraper 5 is in close contact with the filter screen 4. When the filter screen 4 rotates, the scraper 5 can scrape off the impurities on its surface.

[0030] On the side wall of the second pipe 2, near the filter screen 4, there is a sewage discharge pipe section 6, which is used to discharge scraped-off impurities. An electric valve 7 is installed inside the sewage discharge pipe section 6. The electric valve 7 includes a motor 8 and a valve plate 9. The motor 8 is fixedly installed on the outer side wall of the sewage discharge pipe section 6, and its output end is fixedly connected to the valve plate 9. The valve plate 9 is tightly fitted with the inner wall of the sewage discharge pipe section 6 and can rotate under the drive of the motor 8, thereby opening or closing the sewage discharge pipe section 6.

[0031] A first rotating shaft 10, coaxial with the output end of the motor 8, is fixed on the valve plate 9. The end of the first rotating shaft 10 passes through the side wall of the sewage pipe section 6 and is slidably connected to a second rotating shaft 11. Specifically, the end of the first rotating shaft 10 is provided with a square part 16, and one end of the second rotating shaft 11 is provided with a square sleeve 17 that mates with the square part 16. This connection method can achieve effective torque transmission and avoid stress concentration in the shaft system caused by rigid connection, thereby improving the reliability of transmission. The second rotating shaft 11 is rotatably connected to the first pipe 1, and a drive gear 12 is fixed at one end of the second rotating shaft 1 inside the first pipe 1.

[0032] A driven gear 13 is fixed on the filter screen 4, and the driving gear 12 meshes with the driven gear 13 to form a gear transmission mechanism. When the motor 8 starts, the valve plate 9 rotates to open the sewage discharge pipe section 6. At the same time, the first rotating shaft 10 and the second rotating shaft 11 are linked, driving the filter screen 4 to rotate through the gear transmission mechanism. Impurities are scraped off the surface of the rotating filter screen 4 by the scraper 5, and the scraped impurities are discharged with the fluid through the sewage discharge pipe section 6, thereby achieving the functions of self-cleaning and sewage discharge.

[0033] To ensure the normal operation of the gear transmission mechanism, the inner wall of the first pipe 1 is designed to be square so as to better cooperate with the driving gear 12 and the driven gear 13.

[0034] Under normal filtration conditions, the valve plate 9 of the electric valve 7 is in the closed state, blocking the sewage pipe section 6, allowing the fluid to flow smoothly from the first pipe 1, pass through the filter screen 4, and enter the second pipe 2, while impurities are trapped on the surface of the filter screen 4.

[0035] When cleaning is required, simply start the motor 8 to rotate the valve plate 9 to open the sewage pipe section 6 and the filter screen 4, thereby completing the self-cleaning and sewage discharge process.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A self-cleaning pipeline filter, characterized in that, The system includes a first pipe (1) and a second pipe (2). The first pipe (1) has a flange inlet (3) on its side wall, and the end of the second pipe (2) is connected to the flange inlet (3). A filter screen (4) is rotatably connected inside the flange inlet (3). A scraper (5) is fixed to the end face of the flange inlet (3) and contacts the filter screen (4). A sewage discharge pipe section (6) is provided on the side wall of the second pipe (2) near the filter screen (4). An electric valve (7) is installed inside the sewage discharge pipe section (6). The electric valve (7) includes a motor (8) and a valve plate (9) fixed to it. The motor (8) is fixed to the outer wall of the sewage discharge pipe section (6). A valve plate (9) is fixed to the output end of the motor (8), and the valve plate (9) is fitted with the inner wall of the sewage pipe section (6). A first rotating shaft (10) coaxial with the output end of the motor (8) is fixed on the valve plate (9). A second rotating shaft (11) is slidably connected to the end of the first rotating shaft (10) through the side wall of the sewage pipe section (6), and the second rotating shaft (11) is rotatably connected to the first pipe (1). A drive gear (12) is fixed to one end of the second rotating shaft (11) located inside the first pipe (1). A driven gear (13) is fixed on the filter screen (4), and the drive gear (12) and the driven gear (13) are meshed together.

2. The self-cleaning pipeline filter according to claim 1, characterized in that, The inner wall of the first pipe (1) is square, which is used to cooperate with the driving gear (12) and the driven gear (13).

3. The self-cleaning pipeline filter according to claim 2, characterized in that, The second pipe (2) is connected to the flange inlet (3) by bolts ().

4. The self-cleaning pipeline filter according to claim 3, characterized in that, A rubber gasket (15) is installed at the second pipe (2) and the flange inlet (3).

5. The self-cleaning pipeline filter according to claim 1, characterized in that, The first rotating shaft (10) has a square part (16) at one end, and the second rotating shaft (11) has a square sleeve (17) that mates with the square part (16) at one end.

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