Filter convenient to clean

Abstract

The utility model particularly relates to a filter convenient to clean, which comprises a box body, a water inlet pipe arranged at the lower part of the left side of the box body, a water outlet pipe arranged at the right side of the box body, and a filtering mechanism arranged in the box body, the filtering mechanism comprises a filter cartridge, the water inlet pipe is communicated with the interior of the filter cartridge, and the water outlet pipe is communicated with the interior of the box body; the outer end of the drainage pipe is connected with a second branch pipe, a first valve is arranged on the water inlet pipe, a second valve is arranged on the first branch pipe, a third valve is arranged on the drainage pipe, and a fourth valve is arranged on the second branch pipe; according to the utility model, impurities in water can be filtered, meanwhile, the filter cartridge can be cleaned under the condition that the filter cartridge is not replaced or detached, the impurities attached to the filter cartridge are washed, separated and discharged by adopting reverse high-pressure washing, and the filter cartridge is simple and convenient to clean; moreover, the filter cartridge is convenient to replace, and the interior of the box body can be cleaned by opening the cover plate.

Description

Technical Field

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

[0002] With the continuous advancement of industrialization and urbanization, water pollution has become an increasingly serious problem. To ensure water quality safety and industrial production efficiency, various filters are widely used in water treatment systems to remove suspended solids, particulate matter, and other impurities from water. However, commonly available filters still have the following shortcomings in practical use:

[0003] First, the cleaning process is complicated: traditional filters usually require disassembling the filter cartridge and manually cleaning or replacing it. This method is not only time-consuming and labor-intensive, but may also cause the filter to be shut down for a long time, affecting the system's operating efficiency.

[0004] Second, maintenance and replacement are inconvenient: existing filters require disassembling multiple components when replacing the filter cartridge, which not only increases the complexity of operation, but may also lead to a decrease in sealing performance due to repeated disassembly and assembly, affecting the service life of the filter.

[0005] For example, a filter with easy cleaning according to patent number CN201711039992.9 includes an upper outer shell. A lower outer shell is hinged to the lower left side of the upper outer shell via a pin. A first fixing block is fixedly connected to the upper right side of the lower outer shell. The top of the first fixing block has an opening, and the bottom of the opening has a first cavity. This easy-to-clean filter, through the provided top block, can engage with the stop block under the action of a first spring, ensuring a stable and efficient engagement. It is simple and convenient, solving the problem of damage after long-term use of traditional threaded fasteners, saving costs, and improving disassembly and assembly efficiency. Through the provided support rod, under the action of a second spring, pulling the pull block allows the connecting rod to move left and right, realizing the engagement of the locking block with the groove, further securing the connection between the first and second fixing blocks, and ensuring effective fixation of the upper and lower outer shells. While the above structure can clean the filter structure in the filter, the entire device still needs to be disassembled and the filter removed for cleaning, which is extremely time-consuming and results in low work efficiency. Furthermore, frequent disassembly will greatly reduce the service life of the equipment, for example, the sealing performance between parts will be reduced.

[0006] Therefore, we provide a filter that can backwash the filter structure, facilitate cleaning of the housing, and allow for easy replacement of the filter structure. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a filter that is easy to clean.

[0008] The purpose of this utility model is achieved as follows: a filter that is easy to clean includes a housing, an inlet pipe provided on the lower left side of the housing, an outlet pipe provided on the right side of the housing, a filter mechanism provided inside the housing, the filter mechanism including a filter cylinder, the inlet pipe communicating with the inside of the filter cylinder, the outlet pipe communicating with the inside of the housing, a branch pipe one connected to the outer end of the inlet pipe, a branch pipe two connected to the outer end of the outlet pipe, a valve one provided on the inlet pipe, a valve two provided on the branch pipe one, a valve three provided on the outlet pipe, a valve four provided on the branch pipe two, and a support foot provided at the bottom of the housing for easy placement of the device.

[0009] Furthermore, a cover plate is detachably provided on the upper end of the box.

[0010] Furthermore, the box is equipped with a partition that divides the box into upper and lower parts, with the filtration mechanism located above the partition.

[0011] Furthermore, a limiting ring is provided on the upper surface of the partition plate, and the lower end of the filter cylinder is detachably located inside the limiting ring. The water inlet pipe passes through the partition plate from below and communicates with the filter cylinder.

[0012] Furthermore, a second limiting ring is provided on the cover plate, the second limiting ring penetrates the cover plate, and a limiting cylinder is provided inside the second limiting ring that can move up and down. The upper end of the limiting cylinder is sealed, and the upper end of the filter cylinder is located inside the limiting cylinder that can move up and down.

[0013] In use, water is introduced into the filter cartridge through the inlet pipe. The water passes through the filter cartridge to filter impurities, and then is discharged through the drain pipe. When cleaning the filter cartridge is required, liquid backflow can be used to discharge the long-term adhered impurities. Specifically, valves one and three are closed, and valves two and four are opened. Clean water enters the upper space of the housing through branch pipe two, flowing back into the filter cartridge. The high-pressure water flow washes away the large amount of impurities adhering to the filter cartridge. After washing, the impurities are discharged through branch pipe two, thus rinsing the filter cartridge.

[0014] When the filter cartridge needs to be replaced, open the sealing cover (the sealing cover and the second limiting ring are connected by threads, and the sealing cover can be opened by rotating), and then lift the limiting cylinder upwards to take it out. The upper end face of the limiting cylinder can be provided with a handle groove to facilitate lifting the limiting cylinder. After lifting the limiting cylinder, the limiting cylinder is separated from the first connecting ring. Then open the cover plate to avoid interference between the limiting cylinder and the first connecting ring. Then, the filter cartridge can be removed from the bottom limiting ring one for replacement or cleaning. When installing the filter cartridge, open the cover and insert the bottom connecting ring two into the limiting ring one. The bottom sealing ring three seals the filter cartridge with the limiting ring one, preventing water from overflowing from the bottom side of the filter cartridge. Then, close the cover to seal it. Move the limiting cylinder downward from the limiting ring two above the cover, so that the sealing ring two inside the limiting cylinder is pressed and sealed against the upper surface of the top connecting ring one of the filter cartridge, preventing water from overflowing from the top of the filter sleeve. At this time, the sealing ring one is in contact with the upper surface of the limiting ring two. Then, rotate the sealing cover to close the sealing cover with the limiting ring two. During the closing process, the sealing ring one is compressed, achieving a sealing seal between the sealing cover and the limiting ring two.

[0015] Beneficial effects: This device can filter impurities in water and clean the filter cartridge without replacing or disassembling it. It uses reverse high-pressure flushing to wash away and discharge the attached impurities, making cleaning simple and convenient. It also facilitates filter cartridge replacement and allows cleaning of the inside of the housing by opening the cover. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the utility model.

[0017] Figure 2 This is a partial structural schematic diagram of the utility model.

[0018] Figure 3 This is a partial structural cross-sectional view of the box of the utility model.

[0019] Figure 4 This is a partial structural cross-sectional view of the limiting cylinder of the utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Housing, 2. Cover plate, 3. Sealing cover, 4. Valve II, 5. Valve I, 6. Inlet pipe, 7. Branch pipe I, 8. Support foot, 9. Branch pipe II, 10. Valve IV, 11. Valve III, 12. Limiting ring II, 13. Drain pipe, 14. Limiting ring I, 15. Filter cylinder, 16. Limiting cylinder, 17. Sealing ring I, 18. Sealing ring II, 19. Connecting ring I, 20. Connecting ring II, 21. Sealing ring III. Detailed Implementation

[0022] Example 1, such as Figure 1-4 As shown, the purpose of this utility model is achieved as follows: a filter that is easy to clean includes a housing 1. A water inlet pipe 6 is provided on the lower left side of the housing 1, and a water outlet pipe is provided on the right side of the housing 1. A filter mechanism is provided inside the housing 1. The filter mechanism includes a filter cylinder 15. The water inlet pipe 6 is connected to the inside of the filter cylinder 15, and the water outlet pipe is connected to the inside of the housing 1. A branch pipe 7 is connected to the outer end of the water inlet pipe 6, and a branch pipe 9 is connected to the outer end of the drain pipe 13. A valve 5 is provided on the water inlet pipe 6, a valve 4 is provided on the branch pipe 7, a valve 11 is provided on the drain pipe 13, and a valve 10 is provided on the branch pipe 9.

[0023] The upper part of the housing 1 is detachably equipped with a cover plate 2. Inside the housing 1, there is a partition that divides the housing 1 into upper and lower parts, and the filter mechanism is located above the partition.

[0024] A limiting ring 14 is provided on the upper surface of the partition. The lower end of the filter cylinder 15 is detachably located within the limiting ring 14. The water inlet pipe 6 passes through the partition from below and connects to the filter cylinder 15. A limiting ring 12 is provided on the cover plate 2, passing through the cover plate 2. A limiting cylinder 16 is provided inside the limiting ring 12 and can move up and down. The upper end of the limiting cylinder 16 is sealed, and the upper end of the filter cylinder 15 is located inside the limiting cylinder 16 and can move up and down. A sealing cover 3 is provided on the limiting ring 12 and can move up and down.

[0025] The sealing cap 3 and the limiting ring 12 are connected by threads. A sealing ring 17 is provided on the outer side of the upper end of the limiting cylinder 16. Connecting ring 19 and connecting ring 20 are respectively provided at the upper and lower ends of the outer side of the filter cylinder 15. The outer side of connecting ring 19 fits against the inner side of the limiting cylinder 16, and the outer side of connecting ring 20 fits against the inner side of the limiting ring 14. A sealing ring 28 is provided on the upper end face of the limiting ring 1, and a sealing ring 31 is provided on the lower end face of the limiting ring 2.

[0026] In use, water is introduced into the filter cylinder 15 through the inlet pipe 6. The water passes through the filter cylinder 15 to filter impurities and is then discharged through the drain pipe 13. When it is necessary to clean the filter cylinder 15, liquid backflow can be used to discharge the impurities that have been attached to the filter cylinder 15 for a long time. That is, close valve 1 5 and valve 3 11, open valve 2 4 and valve 4 10, and let clean water enter the space in the upper part of the box 1 through branch pipe 2 9. The water flows back into the filter cylinder 15, and the high-pressure water flow washes away the large amount of impurities adhering to the filter cylinder 15. After the impurities are washed away, they are discharged through branch pipe 2 9, thus cleaning the filter cylinder 15.

[0027] When the filter cartridge 15 needs to be replaced, open the sealing cover 3 (the sealing cover 3 and the limiting ring 12 are threaded together, and the sealing cover 3 can be opened by rotating it), and then lift the limiting cylinder 16 upwards to take it out. The upper end face of the limiting cylinder 16 can be provided with a handle groove to facilitate lifting the limiting cylinder 16. After lifting the limiting cylinder 16, the limiting cylinder 16 is separated from the connecting ring 19. Then open the cover plate 2 to avoid interference between the limiting cylinder 16 and the connecting ring 19. Then, the filter cartridge 15 can be removed from the bottom limiting ring 14 for replacement or cleaning. When installing the filter cartridge 15, open the cover plate 2 and insert the connecting ring 20 at the bottom of the filter cartridge 15 into the limiting ring 14. The sealing ring 21 at the bottom seals the filter cartridge 15 with the limiting ring 14, preventing water from overflowing from the bottom side of the filter cartridge 15. Then, close the cover plate 2 to seal it. Move the limiting cylinder 16 downward from the limiting ring 12 above the cover plate 2, so that the sealing ring 18 inside the limiting cylinder 16 is pressed and sealed against the upper surface of the connecting ring 19 at the top of the filter cartridge 15, preventing water from overflowing from the top of the filter sleeve. At this time, the sealing ring 17 is in contact with the upper end face of the limiting ring 12. Then, rotate the sealing cover 3 to close the sealing cover 3 with the limiting ring 12. During the closing process, the sealing ring 17 is compressed, realizing the sealing cover 3 and the limiting ring 12 are closed.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter that is easy to clean, comprising a housing, characterized in that: A water inlet pipe is provided on the lower left side of the box, and a water outlet pipe is provided on the right side of the box. A filtration mechanism is provided inside the box, which includes a filter cylinder. The water inlet pipe is connected to the inside of the filter cylinder, and the water outlet pipe is connected to the inside of the box. A branch pipe 1 is connected to the outer end of the water inlet pipe, and a branch pipe 2 is connected to the outer end of the water outlet pipe. A valve 1 is provided on the water inlet pipe, a valve 2 is provided on the branch pipe 1, a valve 3 is provided on the water outlet pipe, and a valve 4 is provided on the branch pipe 2.

2. The easy-to-clean filter according to claim 1, characterized in that: The upper part of the box is detachably equipped with a cover plate.

3. The easy-to-clean filter according to claim 2, characterized in that: The box is equipped with a partition that divides the box into upper and lower parts, and the filtration mechanism is located above the partition.

4. The easy-to-clean filter according to claim 3, characterized in that: The upper surface of the partition is provided with a limiting ring, and the lower end of the filter cylinder is detachably located inside the limiting ring. The water inlet pipe passes through the partition from below and is connected to the filter cylinder.

5. The easy-to-clean filter according to claim 4, characterized in that: The cover plate is provided with a second limiting ring, which penetrates the cover plate. A limiting cylinder is provided inside the second limiting ring that can move up and down. The upper end of the limiting cylinder is sealed, and the upper end of the filter cylinder can move up and down and is located inside the limiting cylinder.

6. The easy-to-clean filter according to claim 5, characterized in that: The second limiting ring is equipped with a sealing cover that can move up and down.

7. The easy-to-clean filter according to claim 6, characterized in that: The sealing cap and the second limiting ring are connected by threads.

8. The easy-to-clean filter according to claim 7, characterized in that: A sealing ring is provided on the outer side of the upper end of the limiting cylinder.

9. The easy-to-clean filter according to claim 8, characterized in that: The filter cylinder has a connecting ring 1 and a connecting ring 2 at its upper and lower ends on its outer side. The outer side of the connecting ring 1 is in contact with the inner side of the limiting cylinder, and the outer side of the connecting ring 2 is in contact with the inner side of the limiting ring 1.

10. The easy-to-clean filter according to claim 9, characterized in that: A second sealing ring is provided on the upper end face of the first connecting ring, and a third sealing ring is provided on the lower end face of the second connecting ring.

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