Filter with filtering assembly convenient to replace
The sealing design using a screw and nut, along with a pulley structure, solves the problem of inconvenient filter replacement and movement, enabling quick replacement and easy relocation.
Patent Information
- Application Number
- CN202520324565.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing filters require tools and involve cumbersome steps when replacing filter components, resulting in poor convenience and mobility, which affects relocation efficiency.
The design employs four sets of screws and nuts to ensure consistent sealing between the cover and the filter housing, enabling quick installation and disassembly; combined with the pulley design, it allows for convenient movement of the filter.
It improves the ease of replacing filter components and the mobility of the device, simplifies the replacement process, and enhances relocation efficiency.
Smart Images

Figure CN223887562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, specifically a filter that facilitates the replacement of filter components. Background Technology
[0002] Multi-media filters are widely used filtration devices in water treatment systems. Their core principle is to use two or more filter media, through granular or non-granular materials of a certain thickness, to effectively remove suspended impurities in water and clarify the water. When filtering rainwater or sewage, filters are required to perform the filtration operation.
[0003] Filters are an indispensable device in pipelines transporting media. They are usually installed at the inlet end of equipment such as pressure reducing valves, pressure relief valves, and level control valves. Filters are required in the process of filtering rainwater. Valve filters, which facilitate the replacement of filter components, are designed so that water enters the filter valve through the inlet pipes at both ends during use. The filter cover in the filter valve's filter mechanism can filter impurities in the water. At the same time, the filter cover can be quickly disassembled by the positioning rod for easy cleaning or replacement. In addition, the fixing ring can easily fix the filter cover.
[0004] In existing filters, impurities accumulate on the filter components inside the filter during the rainwater filtration process, requiring periodic replacement. Since the filter is fixed by many bolts, disassembly requires tools and is cumbersome, resulting in poor convenience for replacing the filter components. Therefore, to address the above problems, a filter that facilitates the replacement of filter components is proposed. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a filter that is easy to replace the filter components.
[0006] The technical solution adopted by this utility model to solve its technical problem is a filter that facilitates the replacement of filter components, including a base, a filter shell mounted on the base via a bracket, a coarse filter cylinder placed inside the filter shell, a connecting rod mounted on the bottom plate of the coarse filter cylinder, a filter element placed inside the coarse filter cylinder, a fine filter plate threadedly connected to the outer periphery of the connecting rod, a first inlet pipe and a first outlet pipe mounted on the side wall of the filter shell, four sets of first connecting blocks mounted on the side wall of the filter shell, each first connecting block having a first rod hole, a nut rotatably connected to the bottom side of the first connecting block, a cover placed on the filter shell, four sets of second connecting blocks mounted on the side wall of the cover, a screw fixedly mounted on each of the second connecting blocks, a second rod hole having a measuring rod fitted into the second rod hole, and so on. The measuring rod is equipped with scale lines, and a lifting plate is installed on the bottom side of the measuring rod. A spring is installed between the lifting plate and the bottom side of the second connecting block. A pointer is installed on the second connecting block through a fixing block. Annular grooves are formed on the top side of the filter housing and the bottom side of the cover, and a sealing ring is placed in the annular groove. Two sets of handles are installed on the cover, and a pressure gauge is installed on the cover. Through the cooperation of four sets of screws and nuts, the cover is balanced under force, ensuring consistent sealing between the cover and the filter housing, and enabling quick installation of the cover and filter housing. When disassembling the cover to replace the filter assembly, the cover and filter housing are quickly disassembled by rotating the four sets of nuts in the opposite direction. Then, the connecting rod is pulled out, and the entire filter assembly is removed from the filter housing, enabling quick replacement of the filter assembly and improving the convenience of filter assembly replacement.
[0007] Preferably, a water pump is mounted on the base via a base, and a second inlet pipe and a second outlet pipe are mounted on the water pump. A guide pipe is mounted on the second outlet pipe, and the other end of the guide pipe is connected to the first inlet pipe.
[0008] The advantages of this utility model are:
[0009] 1. This utility model uses four sets of screws and nuts to achieve force balance on the cover, ensuring consistent sealing between the cover and the filter housing, thus enabling quick installation of the cover and filter housing. When disassembling the cover to replace the filter assembly, the cover and filter housing can be quickly disassembled by rotating the four sets of nuts in the opposite direction. Then, the connecting rod can be pulled out to remove the entire filter assembly from the filter housing, enabling quick replacement of the filter assembly and improving the convenience of filter assembly replacement. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a first-person perspective 3D structural diagram;
[0012] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the filter housing;
[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the screw.
[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the sealing ring.
[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the cover.
[0016] In the diagram: 1. Base; 2. Filter housing; 3. Coarse filter cylinder; 4. Connecting rod; 5. Filter element; 6. Fine filter plate; 7. First inlet pipe; 8. First outlet pipe; 9. First connecting block; 10. First rod hole; 11. Nut; 12. Cover; 13. Second connecting block; 14. Screw; 15. Second rod hole; 16. Measuring rod; 17. Scale line; 18. Spring; 19. Pointer; 20. Sealing ring; 21. Handle; 22. Pressure gauge; 23. Water pump; 24. Second inlet pipe; 25. Second outlet pipe; 26. Water guide pipe. Detailed Implementation
[0017] 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 scope of protection of the present utility model.
[0018] Please see Figure 1-5As shown, a filter with easily replaceable filter components includes a base 1, a filter housing 2 mounted on the base 1 via feet, a coarse filter cylinder 3 placed inside the filter housing 2, a connecting rod 4 mounted on the bottom plate of the coarse filter cylinder 3, a filter element 5 placed inside the coarse filter cylinder 3, and a fine filter plate 6 threadedly connected to the outer periphery of the connecting rod 4. A first inlet pipe 7 and a first outlet pipe 8 are mounted on the side wall of the filter housing 2. Four sets of first connecting blocks 9 are mounted on the side wall of the filter housing 2, each with a first rod hole 10. Nuts 11 are rotatably connected to the bottom of the first connecting blocks 9. A cover 12 is placed on the filter housing 2, and four sets of second connecting blocks 13 are mounted on the side wall of the cover 12. Screws 14 are fixedly mounted on the second connecting blocks 13, and second rod holes 15 are formed on the second connecting blocks 13. The filter housing 15 is equipped with a measuring rod 16, which has scale lines 17. A lifting plate 29 is installed on the bottom side of the measuring rod 16. A spring 18 is installed between the lifting plate 29 and the bottom side of the second connecting block 13. A pointer 19 is installed on the second connecting block 13 via a fixing block. Annular grooves are formed on the top side of the filter housing 2 and the bottom side of the cover 12, and a sealing ring 20 is placed in the annular groove. Two sets of handles 21 are installed on the cover 12, and a pressure gauge 22 is installed on the cover 12. During operation, impurities accumulate on the filter components inside the existing filter during the filtration of rainwater, requiring periodic replacement. Because the filter is fixed by many bolts, disassembly requires tools and is cumbersome, resulting in poor convenience for replacing the filter components. By placing the sealing ring 20 in the annular groove of the filter housing 2, and then placing the cover 12 on the filter housing 2, the four sets of screws 14 on the cover 12 are aligned with the four sets of first rod holes 10 on the first connecting block 9. After the screws 14 enter the first rod holes 10, they are inserted into the nuts 11. By rotating the nuts 11, the nuts 11 rotate on the screws 14, and the nuts 11 continuously drive the screws 14 to move vertically downward. The screws 14 drive the second connecting block 13 to move vertically downward, and the second connecting block 13 drives the cover 12 to move downward. The distance between the second connecting block 13 and the first connecting block 9 gradually decreases, and the distance between the cover 12 and the filter housing 2 gradually decreases. The spring 18 is compressed, and the length of the measuring rod 16 between the second connecting block 13 and the first connecting block 9 decreases, indicating that the measuring rod 16 is in the same position as the filter housing 2. The needle 19 always points to the scale line 17 of the measuring rod 16, unifying the scale values pointed to by the four sets of pointers 19, thus achieving a fixed connection between the cover 12 and the filter housing 2, and ensuring consistent sealing between the cover 12 and the filter housing 2. This structure, through the cooperation of four sets of screws 14 and nuts 11, balances the force on the cover 12, ensuring consistent sealing between the cover 12 and the filter housing 2, and enabling quick installation of the cover 12 and the filter housing 2. When disassembling the cover 12 to replace the filter assembly, the cover 12 and the filter housing 2 can be quickly disassembled by rotating the four sets of nuts 11 in the opposite direction. Then, the connecting rod 4 can be pulled out to remove the entire filter assembly from the filter housing 2, enabling quick replacement of the filter assembly and improving the convenience of filter assembly replacement.
[0019] Please see Figure 1 As shown, a water pump 23 is mounted on the base 1 via a base frame. A second inlet pipe 24 and a second outlet pipe 25 are mounted on the water pump 23. A guide pipe 26 is mounted on the second outlet pipe 25, and the other end of the guide pipe 26 is connected to the first inlet pipe 7. During operation, existing filters require moving the filter to the inlet of hydraulic control valves, pressure reducing valves, pressure relief valves, and level control valves to remove impurities from the rainwater. Because the filter cannot be easily moved, the device has poor mobility, affecting its relocation efficiency. By pushing the handle 28, four sets of pulleys 27 roll on the ground, enabling the filter to move more efficiently. The entire device is moved. After the filter device is moved to the inlet end of the conveying pipeline, the first outlet pipe 8 is connected to the inlet end of the device, and then the second inlet pipe 24 is connected to the conveying pipeline. The water pump 23 operates, and the water pump 23 guides the rainwater in the conveying pipeline into the guide pipe 26. Then, it enters the filter housing 2 through the first inlet pipe 7. After being filtered by the fine filter plate 6, the filter element 5 and the coarse filter cylinder 3, it is discharged from the first outlet pipe 8 and then enters the device from the inlet end of the device. This achieves rapid filtration of rainwater. This structure allows for convenient movement of the filter, which is beneficial to improving the mobility of the device and the efficiency of moving the device.
[0020] Working principle: In existing filters, impurities accumulate on the filter components during rainwater filtration, requiring periodic replacement. Because the filters are fixed with numerous bolts, disassembly requires tools and is cumbersome, making filter component replacement inconvenient. By placing the sealing ring 20 in the annular groove of the filter housing 2, and then placing the cover 12 on the filter housing 2, the four sets of screws 14 on the cover 12 are aligned with the four sets of first rod holes 10 on the first connecting block 9. After the screws 14 enter the first rod holes 10, they are inserted into the nuts 11. By rotating the nut 11, the nut 11 rotates on the screws 14, continuously driving the screws 14 to move vertically downwards. Rod 14 drives the second connecting block 13 to move vertically downwards, which in turn drives the cover 12 to move downwards. The distance between the second connecting block 13 and the first connecting block 9 gradually decreases, as does the distance between the cover 12 and the filter housing 2. Spring 18 is compressed, reducing the length of the measuring rod 16 between the second connecting block 13 and the first connecting block 9. Pointer 19 always points to the scale line 17 of the measuring rod 16, unifying the scale values pointed to by the four sets of pointers 19. This achieves a fixed connection between the cover 12 and the filter housing 2, ensuring consistent sealing throughout. This structure, through the cooperation of four sets of screws 14 and nuts 11, balances the forces on the cover 12, ensuring consistent sealing between the cover 12 and the filter housing 2. The consistent sealing at all points allows for quick installation of the cover 12 and filter housing 2. When disassembling the cover 12 to replace the filter assembly, the four sets of nuts 11 are rotated in the reverse direction to quickly disassemble the cover 12 and filter housing 2. Then, the connecting rod 4 is pulled out, and the entire filter assembly is removed from the filter housing 2, enabling rapid replacement of the filter assembly and improving the convenience of replacement. Existing filters, when filtering rainwater, require moving the filter to the inlet of hydraulic control valves, pressure reducing valves, pressure relief valves, and level valves to remove impurities from the rainwater. The inability to easily move the filter results in poor mobility of the device, affecting its relocation efficiency. This issue can be addressed by pushing... Hand 28 and four sets of pulleys 27 roll on the ground, realizing the overall movement of the filter device. After the filter device is moved to the inlet end of the conveying pipeline, the first outlet pipe 8 is connected to the inlet end of the equipment, and then the second inlet pipe 24 is connected to the conveying pipeline. The water pump 23 operates, and the water pump 23 guides the rainwater in the conveying pipeline into the guide pipe 26. Then it enters the filter housing 2 from the first inlet pipe 7. After being filtered by the fine filter plate 6, filter element 5 and coarse filter cylinder 3, it is discharged from the first outlet pipe 8 and then enters the equipment from the inlet end of the equipment, realizing the rapid filtration of rainwater. This structure allows the filter to be moved easily, which is beneficial to improving the mobility of the device and the efficiency of moving the device.
[0021] 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 illustrative of the principles of this 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.
Claims
1. A filter with easily replaceable filter components, characterized in that: The system includes a base (1), on which a filter housing (2) is mounted via a bracket. A coarse filter cylinder (3) is placed inside the filter housing (2). A connecting rod (4) is mounted on the bottom plate of the coarse filter cylinder (3). A filter element (5) is placed inside the coarse filter cylinder (3). A fine filter plate (6) is threadedly connected to the outer periphery of the connecting rod (4). A first inlet pipe (7) and a first outlet pipe (8) are installed on the side wall of the filter housing (2). Four sets of first connecting blocks (9) are installed on the side wall of the filter housing (2). A first rod hole (10) is opened in each first connecting block (9). A nut (11) is rotatably connected to the bottom side of each first connecting block (9). A cover (12) is placed on the filter housing (2). Four sets of second connecting blocks (13) are installed on the side wall of the cover (12). A screw (14) is fixedly installed on the second connecting block (13). A second rod hole (15) is opened on the second connecting block (13). A measuring rod (16) is assembled in the second rod hole (15). A scale line (17) is set on the measuring rod (16). A lifting plate (29) is installed on the bottom side of the measuring rod (16). A spring (18) is installed between the lifting plate (29) and the bottom side of the second connecting block (13). A pointer (19) is installed on the second connecting block (13) through a fixing block.
2. The filter with easily replaceable filter components according to claim 1, characterized in that: The filter housing (2) has an annular groove on its top side and the cover (12) on its bottom side, and a sealing ring (20) is placed in the annular groove.
3. A filter with easily replaceable filter components according to claim 2, characterized in that: Two sets of handles (21) are installed on the cover (12), and a pressure gauge (22) is installed on the cover (12).
4. A filter with easily replaceable filter components according to claim 1, characterized in that: A water pump (23) is mounted on the base (1) via a base, and a second inlet pipe (24) and a second outlet pipe (25) are mounted on the water pump (23).
5. A filter with easily replaceable filter components according to claim 4, characterized in that: A water guide pipe (26) is installed on the second water outlet pipe (25), and the other end of the water guide pipe (26) is connected to the first water inlet pipe (7).