Scraper type self-cleaning filter

Abstract

The utility model provides a scraper type self-cleaning filter, which relates to the technical field of filters and comprises a filter main body and a filter screen. An electric telescopic rod is started to drive a rectangular frame and two scraping plates to move back and forth on the inner wall of a sliding groove and the surface of a filter screen to be matched with filtered liquid to conduct self-cleaning treatment on the surface of the filter screen at intervals, and when the liquid passes through, the scraping plates are driven to move back and forth to a certain position but do not push elastic check blocks; when liquid does not pass through the filter body, the scrapers push the scraped impurities and particles into the rectangular holes, the scraped impurities and particles penetrate through the elastic baffles and fall into the collecting box in the collecting frame to be collected, self-cleaning is completed, and regular cleaning can avoid influence on use of the filter body. And finally, the collecting box can be taken out regularly to treat impurities and particles collected in the collecting box.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a scraper type self-cleaning filter. Background Art

[0002] A filter is a device widely used in pipelines that transport media. Its main function is to selectively transmit or block impurities, particles or microorganisms in light, sound waves, gases or liquids of specific wavelengths and frequencies.

[0003] When using a filter body to filter gas or liquid, the interfaces at both ends of the filter body are usually connected to the gas or liquid flow path, and then filtered and intercepted by the filter net inside the filter body. The intercepted impurities and particles are easy to adhere to the filter net. After a long time, it is easy to cause the filter holes on the filter net to become clogged, thereby affecting the subsequent use of the filter body and reducing the filtration efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a scraper-type self-cleaning filter.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a scraper-type self-cleaning filter comprises a filter body and a filter screen, the interior of the filter body is provided with a cleaning and collecting device, and a device for facilitating replacement is provided between the inner wall of the filter body and the filter screen, and the cleaning and collecting device comprises two collecting boxes, the inner wall of the filter body is symmetrically provided with slide grooves, one side of the inner wall of one of the slide grooves is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a rectangular frame, the two ends of the rectangular frame are respectively slidably connected with the inner walls of the two slide grooves, one side of the rectangular frame is symmetrically fixedly connected with a scraper, rectangular holes are provided on both sides of the inner wall of the filter body, and elastic blocks are fixedly connected to the inner wall of the rectangular hole, and the two sides of the filter body are fixedly connected with the collecting frame, the inner wall of the collecting frame is connected with the inner wall of the rectangular hole, the collecting box is inserted in the inner wall of the collecting frame, and one side of the collecting frame is rotatably connected to the limiting rod, and one side of the limiting rod abuts against one side of the collecting box.

[0006] The effects achieved by the above components are as follows: by setting up a cleaning and collecting device, starting the electric telescopic rod to drive the rectangular frame and the two scrapers to move back and forth on the inner wall of the slide trough and the surface of the filter respectively, and cooperating with the filtered liquid to perform self-cleaning treatment on the surface of the filter at intervals. When the liquid passes through, the scraper is driven to move back and forth to a certain position but does not push the elastic stopper, so as to scrape off the impurities and particles attached to the filter. When the liquid does not pass through, the scraper pushes the scraped impurities and particles into the rectangular hole through the elastic stopper so that they fall into the collection box in the collection frame for collection, so that self-cleaning is completed. In this way, regular cleaning can avoid affecting the use of the filter body and improve the filtration efficiency. Finally, the collection box can be taken out regularly to deal with the impurities and particles collected inside it.

[0007] Preferably, one side of the limiting rod is fixedly connected with an anti-slip protrusion, and the anti-slip protrusion is arranged on a side of the limiting rod close to the collecting rack.

[0008] The effect achieved by the above components is: by arranging the anti-skid protrusion on one side of the limiting rod, the contact friction force on one side of the limiting rod can be increased, so that it is not easy to rotate loose when it abuts on one side of the collection box.

[0009] Preferably, a bearing is fixedly connected to the outer surface of one end of the limiting rod, and the outer ring of the bearing is fixedly connected to one side of the collection box.

[0010] The effect achieved by the above components is: by arranging the bearing, the rotational wear between one end of the limit rod and the collecting frame can be reduced, thereby increasing the service life of the limit rod.

[0011] Preferably, a reinforcement rod is fixedly connected to the outer surface of the output end of the electric telescopic rod, and one end of the reinforcement rod is fixedly connected to one side of the rectangular frame.

[0012] The effect achieved by the above components is that by arranging the reinforcement rod, the connection area between the output end of the electric telescopic rod and the rectangular frame can be increased, making the connection more secure and less prone to breakage and damage.

[0013] Preferably, the easy-to-replace device includes two blocks, a slot is provided on one side of the inner wall of the filter body, a hole is provided on one side of the inner wall of the filter body, the outer surface of one end of the filter screen passes through the hole and is inserted in the inner wall of the slot, a circular hole block is symmetrically fixedly connected to one side of the filter body, the inner wall of the circular hole block is slidably connected to one end of the block, a spring is sleeved on the outer surface of one end of the block, two ends of the spring are respectively fixedly connected to one side of the block and one side of the circular hole block, and one side of the block abuts against one side of the filter screen.

[0014] The effect achieved by the above components is: by setting up a device that is easy to replace, when the filter needs to be replaced after being used for a long time, one end of the card block can be manually held and pulled outward to a certain position in the inner wall of the circular hole block, so that the other end of the card block is moved away from one side of the filter. At this time, hold one end of the filter and pull it out from the inner walls of the card hole and the card slot, so that it can be removed from the inner wall of the filter body, which is convenient for its replacement.

[0015] Preferably, a pull block is fixedly connected to one side of the clamping block, and the longitudinal section of the pull block is in a circular ring shape.

[0016] The effect achieved by the above components is that by providing the pulling block, the contact area of ​​one end of the card block can be increased, making it easier to manually hold and pull it.

[0017] Preferably, a sealing block is fixedly connected to one side of the filter screen, and the outer surface size of the sealing block is larger than the inner wall size of the clamping hole.

[0018] The effect achieved by the above components is: by setting the sealing block, and then inserting the filter screen through the card hole into the inner wall of the card slot, the sealing block can seal the gap between the filter screen and the card hole, so that when the filter body is filtering the liquid, the liquid is not easy to overflow from the gap.

[0019] Preferably, a handle block is fixedly connected to one side of the filter screen, and a cross section of the handle block is U-shaped.

[0020] The effect achieved by the above components is that by providing the handle block, the contact area of ​​one side of the filter screen can be increased, making it easier to disassemble and install the filter screen.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, a cleaning and collecting device is provided, and an electric telescopic rod is started to drive the rectangular frame and two scrapers to move back and forth on the inner wall of the slide groove and the surface of the filter screen respectively, and the surface of the filter screen is self-cleaned in coordination with the filtered liquid at intervals. When the liquid passes through, the scraper is driven to move back and forth to a certain position but does not push the elastic stopper, so as to scrape off the impurities and particles attached to the filter screen; when the liquid does not pass through, the scraper pushes the scraped impurities and particles into the rectangular holes and passes through the elastic stopper so that the impurities and particles fall into the collection box in the collection frame for collection, so that the self-cleaning is completed. In this way, regular cleaning can avoid affecting the use of the filter body and improve the filtering efficiency. Finally, the collection box can be taken out regularly to process the impurities and particles collected inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the filter body of the utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the electric telescopic rod in the middle;

[0026] Figure 4 for Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0027] Figure 5 for Figure 2 The enlarged three-dimensional structure diagram at B in the middle;

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the filter screen of the utility model.

[0029] Legend: 1. Filter body; 2. Cleaning and collecting device; 3. Easy replacement device; 4. Filter screen; 21. Slide; 22. Electric telescopic rod; 23. Rectangular frame; 24. Scraper; 25. Rectangular hole; 26. Collection frame; 27. Collection box; 28. Limit rod; 29. ​​Bearing; 210. Elastic stopper; 211. Reinforcement rod; 31. Slot; 32. Hole; 33. Handle block; 34. Round hole block; 35. Block; 36. Spring; 37. Pull ring; 38. Sealing block. DETAILED DESCRIPTION

[0030] Embodiment 1, as Figure 1-6As shown, the scraper 24 type self-cleaning filter comprises a filter body 1 and a filter screen 4, a cleaning collection device 2 is arranged inside the filter body 1, a replacement device 3 is arranged between the inner wall of the filter body 1 and the filter screen 4, the cleaning collection device 2 comprises two collection boxes 27, and the inner wall of the filter body 1 is symmetrically provided with slide grooves 21, one side of the inner wall of one of the slide grooves 21 is fixedly connected to an electric telescopic rod 22, the output end of the electric telescopic rod 22 is fixedly connected to a rectangular frame 23, and the two ends of the rectangular frame 23 are respectively connected to the two The inner wall of the slide groove 21 is slidably connected, and a scraper 24 is symmetrically fixedly connected to one side of the rectangular frame 23. Rectangular holes 25 are opened on both sides of the inner wall of the filter body 1, and elastic blocks 210 are fixedly connected to the inner walls of the rectangular holes 25. Collection frames 26 are fixedly connected to both sides of the filter body 1, and the inner walls of the collection frames 26 are connected to the inner walls of the rectangular holes 25. The collection box 27 is inserted in the inner wall of the collection frame 26, and one side of the collection frame 26 is rotatably connected to a limiting rod 28, and one side of the limiting rod 28 abuts against one side of the collection box 27. When the filter body 1 is used for filtering liquid, when impurities and particles are attached to the filter screen 4 and accumulate after a period of use, the electric telescopic rod 22 inside the chute 21 can be started to drive the rectangular frame 23 and the two scrapers 24 to move back and forth on the inner wall of the chute 21 and the surface of the filter screen 4, respectively, to scrape the impurities and particles attached to the surface and push them into the rectangular hole 25, push the bottom of the elastic stopper 210 to open it, and then push the dust and impurities into the collection box 27 in the collection frame 26, and then cooperate with the filtered liquid to perform self-cleaning on the surface of the filter screen 4 at intervals, and drive the scraper when the liquid passes through. The plate 24 moves back and forth to a certain position but does not push the elastic stopper 210, so as to scrape off the impurities and particles attached to the filter screen 4. When no liquid passes through, the scraper 24 pushes the scraped impurities and particles into the rectangular hole 25, passes through the elastic stopper, and makes them fall into the collection box 27 in the collection rack 26 for collection, so that self-cleaning is completed. In this way, regular cleaning can avoid affecting the use of the filter body 1 and improve the filtration efficiency. Finally, the limit rod 28 can be rotated to a certain angle regularly to release the limit on the collection box 27, and the collection box 27 can be taken out from the collection rack 26 to process the impurities and particles collected therein.

[0031] Reference Figure 2-4As shown, this embodiment discloses that one side of the limit rod 28 is fixedly connected with an anti-skid protrusion, and the anti-skid protrusion is arranged on the side of the limit rod 28 close to the collection rack 26. By arranging the anti-skid protrusion on one side of the limit rod 28, the contact friction force on one side of the limit rod 28 can be increased, so that it is not easy to rotate and loosen when it abuts on one side of the collection box 27. A bearing 29 is fixedly connected to the outer surface of one end of the limit rod 28, and the outer ring of the bearing 29 is fixedly connected to one side of the collection box 27. By arranging the bearing 29, the rotational wear between one end of the limit rod 28 and the collection rack 26 can be reduced, and the service life of the limit rod 28 can be increased.

[0032] Reference Figure 2-4 As shown, this embodiment discloses that the outer surface of the output end of the electric telescopic rod 22 is fixedly connected with a reinforcing rod 211, and one end of the reinforcing rod 211 is fixedly connected to one side of the rectangular frame 23. By providing the reinforcing rod 211, the connection area between the output end of the electric telescopic rod 22 and the rectangular frame 23 can be increased, making the connection more secure and less prone to breakage and damage.

[0033] Reference Figure 5 and Figure 6 As shown, this embodiment discloses that the easy-to-replace device 3 includes two blocks 35, a card slot 31 is provided on one side of the inner wall of the filter body 1, a card hole 32 is provided on one side of the inner wall of the filter body 1, the outer surface of one end of the filter screen 4 passes through the card hole 32 and is inserted into the inner wall of the card slot 31, a circular hole block 34 is symmetrically fixedly connected to one side of the filter body 1, the inner wall of the circular hole block 34 is slidably connected to one end of the card block 35, and a spring 36 is sleeved and connected to the outer surface of one end of the card block 35, and the two ends of the spring 36 are respectively fixedly connected to one side of the card block 35 and one side of the circular hole block 34, and one side of the card block 35 abuts against one side of the filter screen 4. When the filter 4 needs to be replaced after being used for a long time, one end of the clamping block 35 can be manually held and pulled outward to a certain position in the inner wall of the circular hole block 34, so that the other end is moved away from one side of the filter 4. At this time, hold one end of the filter 4 and pull it out from the inner walls of the clamping hole 32 and the clamping groove 31, so that it can be removed from the inner wall of the filter body 1, which is convenient for its replacement.

[0034] Reference Figure 5 and Figure 6As shown, this embodiment discloses that a pull block is fixedly connected to one side of the block 35, and the longitudinal section of the pull block is annular. By setting the pull block, the contact area of ​​one end of the block 35 can be increased, so that it is convenient to hold and pull it manually. A sealing block 38 is fixedly connected to one side of the filter screen 4, and the outer surface size of the sealing block 38 is larger than the inner wall size of the card hole 32. By setting the sealing block 38, after the filter screen 4 is inserted into the inner wall of the card slot 31 through the card hole 32, the sealing block 38 can seal and block the gap between the filter screen 4 and the card hole 32, so that when the filter body 1 is filtering the liquid, the liquid is not easy to overflow from the gap. A handle block 33 is fixedly connected to one side of the filter screen 4, and the cross section of the handle block 33 is U-shaped. By setting the handle block 33, the contact area of ​​one side of the filter screen 4 can be increased, so that it is convenient to disassemble and install it.

[0035] Working principle: when the filter body 1 is used for filtering liquid, when impurities and particles are attached to the filter screen 4 and accumulate after a period of use, the electric telescopic rod 22 inside the slide 21 can be started to drive the rectangular frame 23 and the two scrapers 24 to move back and forth on the inner wall of the slide 21 and the surface of the filter screen 4, respectively, to scrape the impurities and particles attached to the surface and push them into the rectangular hole 25, push the bottom of the elastic stopper 210 to open it, and then push the dust and impurities into the collection box 27 in the collection frame 26, and then cooperate with the filtered liquid to perform self-cleaning on the surface of the filter screen 4 at intervals. When the liquid passes through The scraper 24 is driven to move back and forth to a certain position but does not push the elastic stopper 210 to scrape off the impurities and particles attached to the filter screen 4. When no liquid passes through, the scraper 24 pushes the scraped impurities and particles into the rectangular hole 25 to pass through the elastic stopper so that they fall into the collection box 27 in the collection rack 26 for collection, so that self-cleaning is completed. In this way, regular cleaning can avoid affecting the use of the filter body 1 and improve the filtration efficiency. Finally, the limit rod 28 can be rotated to a certain angle regularly to release the limit on the collection box 27, and the collection box 27 can be taken out from the collection rack 26 to process the impurities and particles collected inside.

[0036] When the filter 4 needs to be replaced after being used for a long time, the pull block 37 can be manually held to pull one end of the clamping block 35 outward to a certain position in the inner wall of the circular hole block 34, driving the spring 36 to be stretched and the other end of the filter 4 to be moved away from one side of the filter 4. At this time, the handle block 33 is held to pull one end of the filter 4 out of the inner walls of the clamping hole 32 and the clamping groove 31, so that it can be removed from the inner wall of the filter body 1, which is convenient for its replacement.

Claims

1. A scraper (24) type self-cleaning filter, comprising a filter body (1) and a filter screen (4), characterized in that: A cleaning collection device (2) is provided inside the filter body (1); a replacement device (3) is provided between the inner wall of the filter body (1) and the filter screen (4); the cleaning collection device (2) comprises two collection boxes (27); the inner wall of the filter body (1) is symmetrically provided with slide grooves (21); one side of the inner wall of one of the slide grooves (21) is fixedly connected to an electric telescopic rod (22); the output end of the electric telescopic rod (22) is fixedly connected to a rectangular frame (23); the two ends of the rectangular frame (23) are respectively slidably connected to the inner walls of the two slide grooves (21); the rectangular frame A scraper (24) is symmetrically fixedly connected to one side of the filter body (23); rectangular holes (25) are provided on both sides of the inner wall of the filter body (1); elastic stoppers (210) are fixedly connected to the inner walls of the rectangular holes (25); a collection rack (26) is fixedly connected to both sides of the filter body (1); the inner wall of the collection rack (26) is communicated with the inner wall of the rectangular hole (25); the collection box (27) is inserted into the inner wall of the collection rack (26); one side of the collection rack (26) is rotatably connected to a limiting rod (28); one side of the limiting rod (28) abuts against one side of the collection box (27).

2. The scraper (24) type self-cleaning filter according to claim 1, characterized in that: One side of the limiting rod (28) is fixedly connected to an anti-skid protrusion, and the anti-skid protrusion is arranged on a side of the limiting rod (28) close to the collecting rack (26).

3. The scraper (24) type self-cleaning filter according to claim 1, characterized in that: A bearing (29) is fixedly connected to the outer surface of one end of the limiting rod (28), and the outer ring of the bearing (29) is fixedly connected to one side of the collection box (27).

4. The scraper (24) type self-cleaning filter according to claim 1, characterized in that: A reinforcing rod (211) is fixedly connected to the outer surface of the output end of the electric telescopic rod (22), and one end of the reinforcing rod (211) is fixedly connected to one side of the rectangular frame (23).

5. The scraper (24) type self-cleaning filter according to claim 1, characterized in that: The easy-to-replace device (3) comprises two clamping blocks (35); a clamping groove (31) is provided on one side of the inner wall of the filter body (1); a clamping hole (32) is provided on one side of the inner wall of the filter body (1); an outer surface of one end of the filter screen (4) passes through the clamping hole (32) and is inserted into the inner wall of the clamping groove (31); a circular hole block (34) is symmetrically fixedly connected to one side of the filter body (1); the inner wall of the circular hole block (34) is slidably connected to one end of the clamping block (35); a spring (36) is sleeved and connected to the outer surface of one end of the clamping block (35); two ends of the spring (36) are respectively fixedly connected to one side of the clamping block (35) and one side of the circular hole block (34); and one side of the clamping block (35) abuts against one side of the filter screen (4).

6. The scraper (24) type self-cleaning filter according to claim 5, characterized in that: A pull block is fixedly connected to one side of the clamping block (35), and the longitudinal section of the pull block is in the shape of a circular ring.

7. The scraper (24) type self-cleaning filter according to claim 5, characterized in that: A sealing block (38) is fixedly connected to one side of the filter screen (4); the outer surface size of the sealing block (38) is larger than the inner wall size of the clamping hole (32).

8. The scraper (24) type self-cleaning filter according to claim 5, characterized in that: A handle block (33) is fixedly connected to one side of the filter screen (4); the cross section of the handle block (33) is in a U shape.

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