Drainage filter screen piece and drainer
By designing a drain filter with an annular support and raised sections, and adopting a structure with upper and lower layers of filter holes and a waste storage tank, the problems of easy clogging and difficult cleaning of drain filters are solved, and effective waste storage and flow regulation are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN XINGCHANGKAI KITCHEN & BATHROOM TECH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-08
AI Technical Summary
Existing drainage filter structures are inadequate in balancing waste storage and normal drainage, and are prone to clogging and difficult to clean.
Design a sewage filter screen with an annular support and a raised part, and set with upper and lower layers of filter holes and a waste storage tank. The filter holes are designed as an open structure, including a first filter hole, a second filter hole and a waste storage tank. The spacing and shape of the filter holes are optimized to achieve effective filtration and waste storage.
It achieves effective waste storage and normal drainage, reduces blockages, maintains normal flow, is easy to clean, and the drainage flow can increase as the water level rises.
Smart Images
Figure CN224213453U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage technology, specifically to a drainage filter and a drain device. Background Technology
[0002] A drain filter is a device used to filter dirt and debris in a drainage system. During use, water flows into the drain filter from all directions and is filtered through the filter holes on the screen.
[0003] Existing drain filter structures include flat filter screens, which are simple mesh structures without dirt storage space. They also require frequent cleaning during use to avoid clogging or the washing away of dirt and debris.
[0004] Another common drain filter structure is the filter basket. Filter baskets use a deep groove design to increase capacity and store waste and debris. During use, water flows into the lower filter basket from all directions and primarily drains through the bottom of the groove. The drainage flow is relatively fixed, making water accumulation a common problem. The waste and debris stored in the filter basket accumulate at the bottom of the groove due to the water flow. Once the waste and debris clog the filter holes at the bottom of the groove, the drainage speed slows down rapidly, and sometimes all the filter holes become completely blocked, preventing drainage. Therefore, while filter baskets provide storage space for waste and debris, they are difficult to balance with proper drainage in actual use. Furthermore, the internal structure of the filter basket is difficult to clean.
[0005] In view of this, this case conducts an in-depth study on the above-mentioned problems and proposes a drain filter and drain device, thus giving rise to this case. Utility Model Content
[0006] The purpose of this utility model is to provide a drain filter and drain device that can both store garbage and drain normally, and also increase the flow rate as the water level rises.
[0007] To achieve the above objectives, the solution of this utility model is:
[0008] A drain filter screen has a filter screen body, the filter screen body having an annular support portion and an upwardly protruding ridge formed at the center of the annular support portion, the ridge having a downwardly opening main drain outlet; the filter screen body has a vertically extending centerline;
[0009] The raised portion has a plurality of first filter holes distributed around the center line, and the annular support portion has a plurality of second filter holes distributed around the center line; the lowest position of the first filter holes is higher than the highest position of the second filter holes, and an annular garbage storage groove is formed on the filter body between the lowest position of the first filter holes and the highest position of the second filter holes.
[0010] Furthermore, the waste storage tank is an arc-shaped tank structure with the opening facing upwards.
[0011] Furthermore, the first filter hole is an elongated hole extending from top to bottom; the distance between two adjacent sets of elongated holes is greater than the width of the elongated hole.
[0012] Furthermore, the second filter hole includes an inner ring filter hole and an outer ring filter hole, the outer ring filter hole and the inner ring filter hole are radially offset from each other, and the outer ring filter hole and the first filter hole are aligned with each other.
[0013] Furthermore, the annular support is a horizontal support supported by the lower surface; or the annular support is an inclined support supported by the outer edge.
[0014] Furthermore, a plastic attachment is provided at the edge of the annular support portion, and the lower end of the plastic attachment forms a boss array, with the space between the bosses forming a third filter hole group; or the outer edge of the annular support portion forms a plurality of edge grooves distributed around it, and the plurality of edge grooves constitute the third filter hole group.
[0015] Furthermore, the upper end of the plastic attachment is formed with a plurality of protrusions arranged in a ring.
[0016] Furthermore, the raised portion has a through hole at its center, and an operating component that penetrates the through hole and moves vertically is provided inside the through hole. The lower end of the operating component has an annular limiting edge that mutually limits and cooperates with the through hole.
[0017] A drain assembly includes a drain body, a spring-loaded core assembly installed inside the drain body, and a drain filter screen installed above the drain body; the raised portion has a through hole at its center, and an operating component that penetrates the through hole and moves vertically is provided inside the through hole; the operating component is configured to cooperate vertically with the spring-loaded core assembly.
[0018] Furthermore, the drainage body has a drainage outlet and a crossbeam support frame located below the drainage outlet. The crossbeam support frame has two longitudinal beams and a transverse connecting beam located between the two longitudinal beams. The two longitudinal beams are connected below the drainage outlet, and the bouncing core assembly is supported and positioned on the transverse connecting beam.
[0019] By adopting the above solution, this new type of drain filter optimizes the spatial structure, forming two layers of filter holes and a waste storage tank between them. During use, water flows into the annular support from all directions, and is filtered and drained through the second filter hole. Hair, food scraps, fibers, and other debris are guided by the water flow to the waste storage tank and remain there, achieving waste storage without clogging the filter holes. Compared with existing technologies, this provides effective waste storage while maintaining normal water flow, reducing the likelihood of clogging and minimizing cleaning frequency.
[0020] The two layers of filter holes in this new type have a large water flow area, enabling adjustable drainage at different levels. As the water flow increases, the water level above the annular support increases, and the second filter hole continues to filter and drain water. At the same time, the first filter hole also plays a role in drainage and filtration, thus increasing the drainage flow as the water level rises.
[0021] Compared with existing technologies, this new type of drain filter has an optimized spatial structure. The first filter hole, the second filter hole, and the waste storage tank together form an open structure without any corners or dead angles, resulting in an overall easy-to-clean effect. Attached Figure Description
[0022] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of the novel drainage filter screen component;
[0023] Figure 2 This is a cross-sectional schematic diagram of Embodiment 1 of the novel drainage filter screen component;
[0024] Figure 3 This is a three-dimensional schematic diagram of Embodiment 2 of the novel drainage filter screen;
[0025] Figure 4 This is a cross-sectional schematic diagram of Embodiment 4 of the novel drainage filter screen component;
[0026] Figure 5 This is another structural schematic diagram of the new type of drainage filter screen;
[0027] Figure 6 yes Figure 5 A cross-sectional schematic diagram;
[0028] Figure 7 This is a three-dimensional schematic diagram of the new type of drain device;
[0029] Figure 8 This is a cross-sectional schematic diagram of the new type of drain device.
[0030] Label Explanation
[0031] Filter body 1, raised part 11, first filter hole 110, main drain outlet 111, through hole 112; annular support part 12, second filter hole 120, inner ring filter hole 1201, outer ring filter hole 1202, edge groove 121; garbage storage tank 13; plastic attachment 2, boss array 21, third filter hole group 22, protrusion group 2; operating part 3, limiting ring 31; drain body 4, drain outlet 41, crossbeam support frame 42, longitudinal beam 421, transverse connecting beam 422; spring core assembly 5; mounting base 6, sealing part 61, annular boss 62. Detailed Implementation
[0032] The following detailed description of this case is provided in conjunction with the accompanying drawings and specific embodiments.
[0033] like Figure 1-2 The diagram shown is a schematic diagram of a first embodiment of a drain filter screen according to the present invention.
[0034] The drain filter assembly has a filter body 1, which has an annular support portion 12 and an upwardly protruding ridge 11 formed at the center of the annular support portion 12; the ridge 11 has a downward-facing main drain outlet 111. Figure 2 The filter body 1 shown has a center line extending vertically.
[0035] The raised portion 11 has a plurality of first filter holes 110 distributed around the center line, and the annular support portion 12 has a plurality of second filter holes 120 distributed around the center line; the lowest position of the first filter hole 110 is higher than the highest position of the second filter hole 120, and an annular garbage storage groove 13 is formed on the filter body 1 between the lowest position of the first filter hole 110 and the highest position of the second filter hole 120.
[0036] The raised portion 11 has a plurality of first filter holes 110 and the annular support portion 12 have a plurality of second filter holes 120 distributed vertically, forming two layers of filter holes, with the garbage storage tank formed between the two layers of filter holes.
[0037] When the drain filter is in use, water enters from all directions of the annular support 12 and is filtered and drained through the second filter holes 120. Hair, food scraps, fibers, and other dirt and debris are guided by the water flow to the waste storage tank 13 and stored there. The second filter holes 120 will not be clogged, thus maintaining normal drainage function. Compared with existing technologies, this provides effective waste storage while maintaining normal drainage flow, is less prone to clogging, and reduces cleaning frequency.
[0038] The waste and garbage guiding garbage storage tank 13, such as Figure 2 As shown, hair, fibers, and other easily tangled debris can easily be hooked onto both the first filter hole 110 and the second filter hole 120 under the action of water flow, thereby being retained and stored in the waste storage tank 13. In addition, it also strengthens the retention and storage of other types of debris entering the waste storage tank 13, thus ensuring that the second filter hole 120 will not be easily blocked.
[0039] The two-layer filter assembly has a large water flow area and allows for adjustable drainage at different levels. Specifically, during drainage, as the water flow increases, the drainage efficiency of the second filter hole 120 becomes limited, and the water level above the annular support 12 rises. At this time, the second filter hole 120 continues to filter and drain, while the first filter hole 110 also plays a role in drainage and filtration, thus achieving the effect of increasing the drainage flow as the water level rises.
[0040] In actual use, there may be a special situation where the waste storage tank 13 accumulates continuously without being emptied in time. The waste may spread towards the second filter hole 120, potentially clogging it. In this case, the incoming water initially fails to drain in time. As the water level rises to the height of the first filter hole 110, the first filter hole 110 performs its drainage and filtration function, thus achieving drainage. Therefore, this novel drainage filter will not suffer from the defect of all filter holes being clogged, resulting in drainage failure.
[0041] Compared with the existing technology, the new type of drain filter has an optimized spatial structure. The first filter hole 110, the second filter hole 120 and the waste storage tank 13 form an open structure without corners or dead angles, resulting in an overall easy-to-clean effect.
[0042] like Figure 2 As shown, the waste storage tank 13 is an arc-shaped tank structure with its opening facing upwards. The design of the arc-shaped tank structure avoids the formation of dead corners and corners, making it easier to clean. On the other hand, the arc-shaped surface structure facilitates the hook-like storage of dirt and waste, especially easily tangled dirt.
[0043] like Figure 1-3 As shown, the first filter hole 110 is an elongated hole extending from top to bottom. The first filter hole 110 plays a drainage role. As the water level gradually rises, the drainage volume also gradually increases, realizing stepless expansion of drainage flow regulation, and has the effect of steplessly increasing the flow rate as the water level rises.
[0044] In a further preferred embodiment, the first filter hole 110 is an elongated hole extending from top to bottom, and the distance between any two adjacent sets of elongated holes is greater than the width of the elongated hole. Thus, an interception surface is formed between any two adjacent sets of elongated holes. This interception surface connects with the waste storage tank 13, and the cooperation between the interception surface and the waste storage tank 13 enhances the waste interception function.
[0045] like Figure 1 The annular support portion 12 shown in Embodiment 1 is a horizontal support portion in which its lower surface provides support. For example... Figure 5-6 The annular support portion 12 shown in Embodiment 2 is an inclined support portion whose outer edge provides support.
[0046] In a specific embodiment, the second filter hole 120 on the annular support 12 is a circular hole, but it can also be of other shapes. The water flows in from all directions of the annular support 12, and is first filtered and drained by the second filter hole 120, which plays a basic drainage role.
[0047] Furthermore, such as Figure 1As shown, the second filter hole 120 includes an inner ring filter hole 1201 and an outer ring filter hole 1202. The outer ring filter hole 1202 and the inner ring filter hole 1201 are radially offset from each other, and the outer ring filter hole 1202 and the first filter hole 110 are aligned with each other.
[0048] Water flows in from all sides of the annular support 12, first draining through the outer ring filter holes 1202. Water that has not been drained in time flows between two adjacent sets of outer ring filter holes 1202 and then flows to the inner ring filter holes 1201, where it is drained. Similarly, water that has not been drained in time flows between two adjacent sets of inner ring filter holes 1201 and then flows to the first filter hole 110 for discharge. This speeds up the drainage efficiency and increases the drainage flow rate.
[0049] like Figure 3 The diagram shown is a schematic diagram of Embodiment 2 of the drain filter screen of this utility model.
[0050] A plastic attachment 2 is provided at the edge of the annular support 12. The plastic attachment 2 is a plastic part, which avoids rigid contact or collision with the drain or drain outlet when the drain filter is moved, so as not to affect the user experience.
[0051] The lower end of the plastic attachment 2 forms a boss array 21, and the space between the boss array 21 forms a third filter hole group 22. Water flows in from all directions from the annular support 12. In addition to the second filter hole 120 achieving basic filtration and drainage, the third filter hole group 22 also plays a basic drainage role, thereby further improving the drainage flow rate and drainage efficiency of the drainage filter screen.
[0052] In the embodiment, a plastic attachment 2 is provided, and the annular support 12 is preferably a horizontal support with its lower surface providing support.
[0053] like Figure 3 As shown, the upper end of the plastic attachment 2 has a plurality of protrusions 23 arranged in a ring. Water flows in from all directions from the annular support 12, intercepts dirt and debris as it passes through the protrusions 23, and guides the water flow to facilitate its rapid entry into the second filter hole 120 for filtration and drainage.
[0054] like Figure 5-6 The diagram shown is a schematic diagram of Embodiment 3 of the drain filter screen of this utility model.
[0055] The outer edge of the annular support portion 12 has a plurality of edge grooves 121 arranged in a ring, which constitute the third filter hole group. Water flows in from all directions of the annular support portion 12, and the third filter hole group and the second filter hole 120 together achieve basic filtration and drainage, thereby further improving the drainage flow rate and drainage efficiency of the drainage filter screen.
[0056] In a preferred embodiment, the annular support 12 is an inclined support that provides support from its outer edge, such that the edge groove 121 and the second filter hole 120 are both inclined vertically to achieve a more effective groundwater function.
[0057] like Figure 4 The diagram shown is a schematic diagram of Embodiment 4 of the drain filter screen of this utility model.
[0058] The raised portion 11 has a through hole 112 at its center. An operating member 3 is provided inside the through hole 112 and can move up and down at the through hole 112. The lower end of the operating member 3 has an annular limiting edge 31 that is mutually limiting and cooperating with the through hole 112.
[0059] In use, the user lifts the operating component 3, which moves upward until the annular limiting edge 31 and the through hole 112 mutually limit each other, thereby lifting the drain filter screen together, facilitating the removal, cleaning, and installation of the drain filter screen. The movable displacement structure of the operating component 3 facilitates its cooperation with the spring-loaded core of the drain assembly to achieve the action of pressing the spring-loaded core. When pressing, it cleverly avoids the drain filter screen, allowing the drain filter screen and the spring-loaded core to be structurally compatible and used together.
[0060] like Figure 7-8 As shown, the present invention also provides a drain assembly, including a drain body 4, a spring core assembly 5 installed inside the drain body 4, and a drain filter screen installed above the drain body 4.
[0061] like Figure 8 As shown, a mounting base 6 is inverted on the bouncing core assembly 5, and a sealing element 61 is installed on the mounting base 6. Pressing the bouncing core assembly 5 causes it to bounce, and the sealing element 61 moves accordingly, having two positions: a first position where it seals against the drain body 4 to close the drain and cut off water, and a second position where it separates from the drain body 4 to open the drain and allow water to flow. The structure and bouncing working principle of the bouncing core assembly 5 are existing known technologies. Figure 8 Only a structural diagram is given in the text.
[0062] The raised portion 11 of the drain filter has a through hole 112 at its center. An operating element 3, which penetrates the through hole 112 and can move vertically within it, is provided. The operating element 3 is vertically aligned with the spring-loaded core assembly 5. The operating element 3 can be a press cover that snaps onto the mounting base 6. The lower end of the press cover has an annular limiting edge 31 that mutually limits and engages with the through hole 112. The mounting base 6 has an annular boss 62 that abuts against the annular limiting edge 31. By pressing the operating element 3, the spring-loaded core assembly 5 is activated by the mutual abutment between the annular limiting edge 31 and the annular boss 62. The connecting base 6 and its sealing element 61 move with the spring-loaded core assembly 5, switching between a first position and a second position to open or close the drain.
[0063] like Figure 7-8 As shown, the drainage body 4 has a drain outlet 41 and a crossbeam support frame 42 located below the drain outlet 41. The bouncing core assembly 5 is supported and positioned on the crossbeam support frame 42. The crossbeam support frame 42 has two longitudinal beams 421 and a transverse connecting beam 422 located between the two longitudinal beams 421. The two longitudinal beams 421 are connected below the drain outlet 41. The crossbeam support frame 42 is positioned entirely below the drain outlet 41 through the longitudinal beams 421. The bouncing core assembly 5 is supported and positioned on the transverse connecting beam 422. In this way, the drain outlet 41 has no other space obstruction except for the space occupied by the bouncing core assembly 5, resulting in a large flow drainage effect.
[0064] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.
Claims
1. A drain filter screen component, characterized in that: The filter body has an annular support portion and an upwardly protruding ridge formed at the center of the annular support portion, the ridge having a downwardly opening main drain outlet; the filter body has a vertically extending centerline. The raised portion has a plurality of first filter holes distributed around the center line, and the annular support portion has a plurality of second filter holes distributed around the center line; the lowest position of the first filter holes is higher than the highest position of the second filter holes, and an annular garbage storage groove is formed on the filter body between the lowest position of the first filter holes and the highest position of the second filter holes.
2. A drain filter screen as described in claim 1, characterized in that: The waste storage tank is an arc-shaped tank structure with the opening facing upwards.
3. A drain filter screen as described in claim 1, characterized in that: The first filter hole is an elongated hole extending from top to bottom; the distance between two adjacent sets of elongated holes is greater than the width of the elongated hole.
4. A drain filter screen as described in claim 1, characterized in that: The second filter hole includes an inner ring filter hole and an outer ring filter hole. The outer ring filter hole and the inner ring filter hole are radially offset from each other, and the outer ring filter hole and the first filter hole are aligned with each other.
5. A drain filter screen as described in claim 1, characterized in that: The annular support is a horizontal support supported by the lower surface; or the annular support is an inclined support supported by the outer edge.
6. A drain filter screen as described in claim 1, characterized in that: A plastic attachment is provided at the edge of the annular support portion, and the lower end of the plastic attachment forms a boss array, with the space between the bosses forming a third filter pore group; or the outer edge of the annular support portion forms a plurality of edge grooves distributed around it, which constitute the third filter pore group.
7. A drain filter screen as described in claim 6, characterized in that: The upper end of the plastic attachment has a group of protrusions arranged in a ring.
8. A drain filter screen as described in claim 1, characterized in that: The raised portion has a through hole at its center, and an operating component that penetrates the through hole and moves up and down is provided inside the through hole. The lower end of the operating component has an annular limiting edge that limits and cooperates with the through hole.
9. A drain device, characterized in that: The device includes a drain body, a bouncing core assembly installed inside the drain body, and a drain filter as described in any one of claims 1-8 installed above the drain body; the raised portion has a through hole at its center, and an operating component that penetrates the through hole and moves vertically is provided inside the through hole; the operating component is configured to cooperate vertically with the bouncing core assembly.
10. A drain device as described in claim 9, characterized in that: The drainage body has a drainage outlet and a crossbeam support frame located below the drainage outlet. The crossbeam support frame has two longitudinal beams and a transverse connecting beam located between the two longitudinal beams. The two longitudinal beams are connected below the drainage outlet, and the bouncing core assembly is supported and positioned on the transverse connecting beam.