A filter that is easily cleaned and replaced

Abstract

The application relates to a filter convenient to clean and replace, which comprises a box, an inlet pipe fixed at the upper end of the box and an outlet pipe fixed at the bottom end of the box, two obliquely arranged filter screens are slidably inserted into the box, and two obliquely arranged scrapers are slidably connected to the inner wall of the box; the sealing effect of the box door and the box is enhanced through a sealing ring, meanwhile, the sealing gasket is compressed by the connection of the bolt and the slide rod, the sealing of the slide rod and the back of the box is realized, the double-sealing design effectively avoids the leakage problem in the filtering process, provides a stable environment for wastewater filtering, the two filter screens are installed in the box in a sliding insertion mode, the scrapers can be slid back after cleaning to prepare for the next batch of wastewater filtering, the filter screens can be easily pulled out, the difficulty of dismounting and replacing the filter screens is greatly reduced, and the maintenance time and cost are reduced.

Description

Technical Field

[0001] This application relates to the field of filter technology, and in particular to a filter that is easy to clean and replace. Background Technology

[0002] Filters are key equipment for separating mixtures such as solid-liquid and gas-solid mixtures. Their core purpose is to remove impurities from fluids and purify media. They have a wide range of applications. In industry, they are used to filter raw materials and wastewater in chemical and water treatment processes. In daily life, they are used in water purifiers and air conditioners to purify air and water quality. In the medical field, they are also commonly used for filtering pharmaceutical liquids and gases. They are a basic device for ensuring the cleanliness of media in many fields.

[0003] In the process of filtering wastewater, the wastewater passes through the filter screen and traps large particles of impurities on the upper part of the screen. The filter screen is not easy to disassemble, and after filtering for a long time, the filter screen traps too many impurities. If it is not cleaned, the filtration effect will deteriorate.

[0004] Therefore, those skilled in the art have provided a filter that is easy to clean and replace in order to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the problems mentioned in the background art, this application provides a filter that is easy to clean and replace. The sealing effect between the door and the housing is enhanced by a sealing ring, and the sealing gasket is tightened by the connection between the bolt and the slide rod to achieve a seal between the slide rod and the back of the housing. This double sealing design effectively avoids leakage problems during the filtration process and provides a stable environment for wastewater filtration.

[0006] The filter provided in this application, which is easy to clean and replace, adopts the following technical solution:

[0007] A filter that is easy to clean and replace includes a housing, an inlet pipe fixed at the upper end of the housing and an outlet pipe fixed at the bottom end. Two inclined filter screens are slidably inserted inside the housing. Two inclined scrapers are slidably connected to the inner wall of the housing. The lower ends of the two scrapers contact the upper surfaces of the two filter screens respectively. A sliding rod is fixed to one side of the scraper. The sliding rod passes through the back of the housing and is slidably disposed with the back of the housing.

[0008] In this invention, when cleaning impurities on the upper part of the filter screen, the door can be opened and the impurities can be scraped off by sliding the scraper along the inner side of the box and discharged from the opening on one side of the box; alternatively, after rotating and removing the bolts, a long rod can be inserted into the end of the slide rod to push the scraper to slide out the impurities. Both cleaning methods are simple to operate and can quickly complete the cleaning of the filter screen without complicated procedures.

[0009] The box body has an opening on one side, and a door is hinged to the other side of the box body. A U-shaped sealing ring is fixed to the outer wall of the door, and the sealing ring is in contact with the side wall of the box body.

[0010] Preferably, a movable rod is rotatably connected to the outside of the sealing ring, and an L-shaped fixing seat is fixed to the outside of the housing. The lower surface of the movable rod contacts the inner side of the fixing seat, and a spring insert for pressing the movable rod is slidably connected to the fixing seat.

[0011] Preferably, the slide rod is fitted with a sealing gasket that contacts the back of the housing, and the end of the slide rod is threaded with a nut for pressing the sealing gasket.

[0012] Preferably, a sliding plate is fixed on both sides of the filter screen, and a groove is provided on the inner wall of the box, with the sliding plate slidably connected inside the groove.

[0013] Preferably, the lower end of the filter screen is fixed with a fixing plate attached to the inner wall of the box, and the fixing plate is threadedly connected to the inner wall of the box with bolts.

[0014] In this invention, after the filter screen is cleaned, it can either be reset by sliding the scraper to stick to the inside of the housing, or the scraper can be manually pushed to stick to the inside of the housing. Both reset methods are convenient and efficient, and can quickly restore the equipment to its state, ensuring that the filter screen can be put into the next batch of wastewater filtration work in a timely manner, and ensuring the continuous operation of the filtration process.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. This application enhances the sealing effect between the box door and the box body by using a sealing ring, and at the same time, it uses the connection between the bolt and the slide rod to press the sealing gasket to achieve a seal between the slide rod and the back of the box body. The double sealing design effectively avoids leakage problems during the filtration process and provides a stable environment for wastewater filtration.

[0017] 2. The two filters are installed inside the housing by sliding insertion. This not only makes it easy to slide and reset the scraper after cleaning to prepare for the next batch of wastewater filtration, but also makes it easy to slide and pull out the filters, greatly reducing the difficulty of filter disassembly and replacement, and reducing maintenance time and costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this application;

[0019] Figure 2 This is a schematic diagram of the interior of the box in this application;

[0020] Figure 3 This is a schematic diagram of the scraper and filter screen in this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Fixed base; 3. Spring insert rod; 4. Movable rod; 5. Sealing ring; 6. Inlet pipe; 7. Sealing gasket; 8. Slide rod; 9. Nut; 10. Box door; 11. Scraper; 12. Filter screen; 13. Bolt; 14. Outlet pipe; 15. Fixed plate; 16. Slide groove; 17. Slide plate. Detailed Implementation

[0022] 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.

[0023] like Figure 1-3 As shown, this application discloses a filter that is easy to clean and replace, including a housing 1, an inlet pipe 6 fixed at the upper end of the housing 1 and an outlet pipe 14 fixed at the bottom end. Two inclined filter screens 12 are slidably inserted inside the housing 1, and two inclined scrapers 11 are slidably connected to the inner wall of the housing 1. Wastewater enters the inner wall of the housing 1 through the inlet pipe 6, falls into the upper filter screen 12, and is filtered by the filter screen 12 during the flow process. Then the wastewater falls into the lower filter screen 12 and is filtered again. Finally, it is discharged through the outlet pipe 14, and large particles of impurities remain on the filter screen 12.

[0024] The lower ends of the two scrapers 11 contact the upper surfaces of the two filter screens 12 respectively. A sliding rod 8 is fixed on one side of the scraper 11. The sliding rod 8 passes through the back of the box body 1 and slides with the back of the box body 1. An opening is provided on one side of the box body 1. A door 10 is hinged to one side of the box body 1. A U-shaped sealing ring 5 is fixed on the outer wall of the door 10. The sealing ring 5 contacts the side wall of the box body 1. The sealing ring 5 increases the sealing effect between the door 10 and the box body 1. When it is necessary to clean the impurities on the upper part of the filter screen 12, the door 10 can be opened. At this time, the two scrapers 11 slide along the inner side of the box body 1 to scrape off the impurities on the two filter screens 12 until the impurities are scraped off from the opening on one side of the box body 1, which facilitates the cleaning of the filter screens 12.

[0025] In addition, the two filter screens 12 are slidably inserted into the box 1, which also makes it easy to slide the filter screens 12 out, so that the filter screens 12 can be removed from the inner wall of the box 1 for replacement. After the filter screens 12 on the inner wall of the box 1 are cleaned, the scraper 11 can be slid to move and reset to stick to the inner side of the box 1, so that the filter screens 12 can carry out the filtration of the next batch of wastewater.

[0026] To facilitate the fixing and opening of the cabinet door, a movable rod 4 is rotatably connected to the outside of the sealing ring 5. An L-shaped fixing seat 2 is fixed to the outside of the cabinet body 1. The lower surface of the movable rod 4 contacts the inner side of the fixing seat 2. A spring insert 3 for pressing the movable rod 4 is slidably connected to the fixing seat 2. By sliding the spring insert 3 away from the upper surface of the movable rod 4, the movable rod 4 can be rotated to disengage from the fixing seat 2. At this time, the cabinet door 10 can be rotated to open for cleaning the filter screen 12 and disassembling and replacing the filter screen 12. In addition, after closing the cabinet door 10, the movable rod 4 is rotated into the inner side of the fixing seat 2, and the spring insert 3 is slidably inserted into the upper surface of the movable rod 4 to limit the movable rod 4.

[0027] To facilitate the movement of the scraper 11, a sealing gasket 7 is fitted onto the slide rod 8 and contacts the back of the housing 1. A nut 9 for pressing the sealing gasket 7 is threaded onto the end of the slide rod 8. The nut 9 is connected to the slide rod 8 to press the sealing gasket 7 against the back of the housing 1, thus sealing the slide rod 8 and the housing 1. The nut 9 is removed by rotating it. A long rod (not shown in the figure) is inserted into the outer end of the slide rod 8 and pushed to make the scraper 11 slide inside the housing 1, pushing out the impurities on the upper part of the filter screen 12, which facilitates the cleaning of the filter screen 12. When cleaning is complete, the scraper 11 is manually pushed back to its original position against the same inner side on the inner wall of the housing 1.

[0028] To facilitate the sliding of the scraper 11, slide plates 17 are fixed on both sides of the filter screen 12, and a groove 16 is provided on the inner wall of the box 1, with the slide plate 17 slidably connected inside the groove 16.

[0029] To facilitate the installation and fixation of the filter screen 12, a fixing plate 15 is fixed to the lower end of the filter screen 12 and attached to the inner wall of the housing 1. The fixing plate 15 is threadedly connected to the inner wall of the housing 1 by bolts 13. By rotating and removing the bolts 13, the filter screen 12 can be moved away from the housing 1 for disassembly and replacement.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] Working principle: Wastewater enters the inner wall of the tank 1 through the inlet pipe 6 and falls into the upper filter screen 12. During the flow, it is filtered by the filter screen 12. Then, the wastewater falls into the lower filter screen 12 and is filtered again. Finally, it is discharged through the outlet pipe 14. Large particles of impurities remain on the filter screen 12. By opening the tank door 10, two scrapers 11 slide along the inner side of the tank 1 to scrape off the impurities on the two filter screens 12 until the impurities are scraped off from the opening on one side of the tank 1, which facilitates cleaning of the filter screens 12. The two filter screens 12 are slidably inserted into the tank 1, which also makes it easy to slide out the filter screens 12, making it easy to remove the filter screens 12 from the inner wall of the tank 1 for replacement. After the filter screens 12 on the inner wall of the tank 1 are cleaned, the scrapers 11 can be slid to move and reset to stick to the inner side of the tank 1, which is convenient for the filter screens 12 to filter the next batch of wastewater.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A filter that is easy to clean and replace, comprising a housing (1), an inlet pipe (6) fixed at the upper end of the housing (1), and an outlet pipe (14) fixed at the bottom end, characterized in that: Two inclined filter screens (12) are slidably inserted inside the box (1). Two inclined scrapers (11) are slidably connected to the inner wall of the box (1). The lower ends of the two scrapers (11) are in contact with the upper surfaces of the two filter screens (12). A sliding rod (8) is fixed on one side of the scraper (11). The sliding rod (8) passes through the back of the box (1) and is slidably disposed with the back of the box (1). The box body (1) has an opening on one side, and a door (10) is hinged to one side of the box body (1). A U-shaped sealing ring (5) is fixed to the outer wall of the door (10), and the sealing ring (5) is in contact with the side wall of the box body (1).

2. The filter that is easy to clean and replace according to claim 1, characterized in that: The sealing ring (5) is rotatably connected to a movable rod (4), and the box body (1) is fixed with an L-shaped fixed seat (2). The lower surface of the movable rod (4) is in contact with the inner side of the fixed seat (2), and the fixed seat (2) is slidably connected with a spring insert (3) for pressing the movable rod (4).

3. The filter that is easy to clean and replace according to claim 1, characterized in that: The slide rod (8) is fitted with a sealing gasket (7) that contacts the back of the housing (1), and the end of the slide rod (8) is threaded with a nut (9) for pressing the sealing gasket (7).

4. The filter that is easy to clean and replace according to claim 1, characterized in that: The filter screen (12) has a sliding plate (17) fixed on both sides. The inner wall of the box (1) is provided with a sliding groove (16), and the sliding plate (17) is slidably connected inside the sliding groove (16).

5. A filter that is easy to clean and replace according to claim 1, characterized in that: The lower end of the filter screen (12) is fixed with a fixing plate (15) attached to the inner wall of the box (1), and the fixing plate (15) is threadedly connected to the inner wall of the box (1) with bolts (13).

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