Filtering core and floor drain

Abstract

This utility model discloses a filter element and a floor drain, comprising a filter element body composed of a flexible filter cylinder and a flange. A rigid shaping ring is embedded within the flange, and its upper surface has a drainage channel surrounding the filter cylinder. This channel divides the flange into inner and outer rings connected by connecting ribs. The rigid shaping ring is simultaneously embedded within both the inner and outer rings, and has water passage holes facing the drainage channel. This utility model, through the synergistic design of the built-in rigid shaping ring and the integrated drainage channel, ensures the structural stability of the filter element while providing a smooth drainage path around the filter cylinder, greatly improving drainage efficiency and anti-clogging capability. The flexible filter cylinder can be easily pulled out for cleaning via the inner handle of the lifting cylinder, effectively improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of floor drain device technology, and in particular to a filter element and a floor drain. Background Technology

[0002] Floor drains are a key component of building drainage systems, and their performance directly affects indoor hygiene, air quality, and user experience. An excellent floor drain must simultaneously fulfill multiple functions, including smooth drainage, efficient debris interception, prevention of pipe blockage, and odor prevention. Among these, the filtration mechanism is the core of achieving these functions, and its design directly determines the floor drain's ease of use and reliability.

[0003] Traditional floor drains often use fixed filters or basket-style filters, which have inherent drawbacks such as inconvenient cleaning, difficult disassembly, and tendency to fail to seal properly after repositioning. To overcome these problems, the industry has proposed various improvement solutions. Among them, filter cartridge structures made of flexible elastic materials have shown significant advantages. This type of design typically includes a flexible filter cartridge and a separate shaping component or fixed base. By pulling the handle provided on the filter cartridge, the cartridge can be elastically deformed, making it easy to remove from the drain channel for cleaning. This achieves tool-free and convenient cleaning, effectively solving the problem of poor cleaning experience associated with traditional filters.

[0004] However, in practical applications, it has been found that this type of flexible filter cartridge structure based on independent shaping components still has the following pain points that urgently need to be addressed: the shaping component, independent of the filter cartridge, is an additional part that needs to be assembled separately, and there is a risk of it coming loose. More importantly, the drainage path under this structure is usually quite tortuous, and the water flow must bypass the assembly gap between the independent shaping component and the filter component, which easily forms turbulence, limits the maximum drainage speed, makes it difficult to meet the needs of high-flow drainage scenarios such as showering, and poses a risk of water accumulation. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a filter element and a floor drain.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter element, comprising a filter element body, the filter element body having a flexible filter cylinder made of elastic material and a flange extending radially outward from the upper part of the flexible filter cylinder, the flexible filter cylinder having a plurality of filter holes on its cylinder wall, a handle portion inside the cylinder, a rigid shaping ring embedded in the flange, and a drainage channel surrounding the flexible filter cylinder on the upper surface of the flange, the drainage channel dividing the flange into an inner ring portion and an outer ring portion, the inner ring portion and the outer ring portion being connected by a plurality of connecting ribs; a portion of the rigid shaping ring being embedded in the inner ring portion and another portion being embedded in the outer ring portion; the rigid shaping ring having a plurality of water passage holes, the water passage holes being positioned directly opposite the drainage channel.

[0007] As a preferred embodiment of this utility model, the connecting rib divides the drainage channel into multiple fan-shaped drainage holes.

[0008] As a preferred embodiment of this utility model, the upper surface of the connecting rib is provided with a positioning protrusion, the rigid shaping ring is placed on the connecting rib, and the wall of the water passage hole on the rigid shaping ring is engaged with the positioning protrusion.

[0009] As a preferred technical solution of this utility model, the inner ring portion is provided with a central hole, and the outer edge of the open end of the flexible filter cylinder is connected to the inner wall of the central hole; by pulling the handle portion, the cylinder body of the flexible filter cylinder can be axially displaced relative to the inner ring portion, switching between the pulled-in state and the pulled-out state.

[0010] As a preferred embodiment of this utility model, the handle is columnar and located at the center of the flexible filter cylinder.

[0011] As a preferred embodiment of this utility model, the filter hole is a strip-shaped hole formed on the side wall of the flexible filter cylinder.

[0012] As a preferred embodiment of this utility model, the rigid shaping ring is made of metal material.

[0013] A floor drain includes the filter element and a floor drain body, the filter element being placed on the floor drain body.

[0014] Compared with the prior art, the beneficial effects of this utility model are: By incorporating drainage channels on the upper surface of the flange, which connect directly to the water passage holes on the rigid shaping ring, a low-resistance, high-efficiency drainage path is formed around the flexible filter cylinder. This allows most water to drain quickly without passing through the filter holes, significantly reducing the load and clogging risk of the filter holes and completely eliminating the risk of water accumulation on the floor. By embedding part of the rigid shaping ring into the inner ring and another part into the outer ring, it becomes an "internal skeleton" providing strong support for the entire flange. This structure effectively overcomes the defects of purely flexible flanges, such as easy deformation and curling, ensuring that the flange remains flat and thus maintaining a tight seal between it and the drain mounting groove for a long time.

[0015] The flexible filter cartridge can switch between two states: pull-in and pull-out. When pulling out, simply pull the flexible filter cartridge upwards using the handle. Its body deforms relative to the rigid shaping ring and is pulled out, with the opening naturally facing downwards. The intercepted waste can be easily removed; simply manually scrape off the dirt from the surface, achieving quick and easy cleaning without disassembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the floor drain of this utility model; Figure 2 This is a structural schematic diagram of the filter element in the pulled-out state of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the filter element in the pulled-out state of this utility model; Figure 4 This is a schematic diagram of the flexible filter cartridge of this utility model in the pulled-out state; Figure 5 This is a schematic diagram of the rigid shaping ring in this utility model; Figure 6 This is a structural schematic diagram of the filter element of this utility model in its embedded state.

[0017] Reference numerals: 1. Filter cartridge body; 2. Flexible filter cylinder; 3. Flanged edge; 4. Filter hole; 5. Handle; 6. Rigid shaping ring; 7. Drainage channel; 8. Inner ring; 9. Outer ring; 10. Connecting rib; 11. Water passage hole; 12. Fan-shaped drainage hole; 13. Positioning protrusion; 14. Center hole; 15. Floor drain body. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-6 The filter element and drain shown include a filter element body 1, which has a flexible filter cylinder 2 made of elastic material and a flange 3 extending radially outward from the upper part of the flexible filter cylinder 2. The flexible filter cylinder 2 has several filter holes 4 on its wall and a handle 5 inside. A rigid shaping ring 6 is embedded in the flange 3. The upper surface of the flange 3 has a drainage channel 7 surrounding the flexible filter cylinder 2, which divides the flange 3 into an inner ring 8 and an outer ring 9. The inner ring 8 and the outer ring 9 are connected by several connecting ribs 10. A portion of the rigid shaping ring 6 is embedded in the inner ring 8, and another portion is embedded in the outer ring 9. The outer ring 9; the rigid shaping ring 6 is provided with a plurality of water passage holes 11, which are set directly opposite the drainage channel 7. In this embodiment, the handle 5 has a columnar structure and is located at the center of the flexible filter cylinder 2; the filter hole 4 is a strip-shaped hole opened on the side wall of the flexible filter cylinder 2, which is not limited to this shape, and can also be a round hole or an irregular hole, etc., which can prevent large particles of impurities from entering the pipe and causing pipe blockage; the rigid shaping ring 6 is made of metal material, such as stainless steel; the filter element as a whole or the flexible filter cylinder 2 is made of rubber, silicone or thermoplastic elastomer, etc., which can ensure that it can be shaped after being pulled in and pulled out.

[0021] By setting drainage channels 7 on the upper surface of the flange 3 and connecting them directly with the water passage holes 11 on the rigid shaping ring 6, a low-resistance, high-efficiency drainage path is formed around the flexible filter cylinder 2. This allows most of the water to be quickly discharged without passing through the filter holes 4, greatly reducing the load and clogging risk of the filter holes 4 and completely eliminating the hidden danger of water accumulation on the ground. By embedding part of the rigid shaping ring 6 into the inner ring 8 and another part into the outer ring 9, it becomes an "internal skeleton" that provides strong support for the entire flange 3. This structure effectively overcomes the defects of the purely flexible flange 3 being easy to deform and curl, ensuring that the flange 3 remains flat at all times, so that the sealing surface between it and the floor drain mounting groove can maintain a tight contact for a long time.

[0022] The connecting rib 10 divides the drainage channel 7 into multiple fan-shaped drainage holes 12. The upper surface of the connecting rib 10 is provided with positioning protrusions 13. The rigid shaping ring 6 rests on the connecting rib 10, and the wall of the water passage hole 11 on the rigid shaping ring 6 engages with the positioning protrusion 13. The engagement between the positioning protrusion 13 on the connecting rib 10 and the wall of the water passage hole 11 on the rigid shaping ring 6 enhances the connection strength between the rigid ring and the flexible flange 3, making their combination more secure and integrated.

[0023] The inner ring portion 8 is provided with a central hole 14, and the outer edge of the opening end of the flexible filter cylinder 2 is connected to the inner wall of the central hole 14; by pulling the handle portion 5, the cylinder body of the flexible filter cylinder 2 can be axially displaced relative to the inner ring portion 8, switching between the pulled-in state and the pulled-out state.

[0024] The flexible filter cartridge 2 can switch between two states: pull-in and pull-out. When the flexible filter cartridge 2 is pulled out, simply pull it upwards using the handle 5. Its body deforms relative to the rigid shaping ring 6 and is pulled out, with the opening naturally facing downwards. The intercepted waste can be easily removed, and the dirt can be manually scraped off the surface, achieving quick cleaning without disassembly.

[0025] A floor drain includes the filter element and a floor drain body 15, wherein the filter element is inserted into the floor drain body 15 from top to bottom.

[0026] 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 of this utility model and are not intended to limit it. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A filter element, comprising a filter element body (1), the filter element body (1) having a flexible filter cylinder (2) made of an elastic material and a flange (3) extending radially outward from the upper part of the flexible filter cylinder (2), the flexible filter cylinder (2) having a plurality of filter holes (4) on its cylinder wall and a handle (5) inside the cylinder, characterized in that: The flange (3) is embedded with a rigid shaping ring (6). The upper surface of the flange (3) is provided with a drainage channel (7) surrounding the flexible filter cylinder (2). The drainage channel (7) divides the flange (3) into an inner ring (8) and an outer ring (9). The inner ring (8) and the outer ring (9) are connected by several connecting ribs (10). A part of the rigid shaping ring (6) is embedded in the inner ring (8), and another part is embedded in the outer ring (9). The rigid shaping ring (6) is provided with several water passage holes (11), and the water passage holes (11) are set opposite to the drainage channel (7).

2. The filter element according to claim 1, characterized in that: The connecting rib (10) divides the drainage channel (7) into multiple fan-shaped drainage holes (12).

3. The filter element according to claim 1 or 2, characterized in that: The upper surface of the connecting rib (10) is provided with a positioning protrusion (13), the rigid shaping ring (6) is placed on the connecting rib (10), and the wall of the water passage hole (11) on the rigid shaping ring (6) is engaged with the positioning protrusion (13).

4. The filter element according to claim 1, characterized in that: The inner ring (8) is provided with a central hole (14), and the outer edge of the opening end of the flexible filter cylinder (2) is connected to the inner wall of the central hole (14); by pulling the handle (5), the cylinder body of the flexible filter cylinder (2) can be axially displaced relative to the inner ring (8), switching between the pull-in state and the pull-out state.

5. The filter element according to claim 1 or 4, characterized in that: The handle (5) has a columnar structure and is located at the center of the flexible filter cylinder (2).

6. The filter element according to claim 1, characterized in that: The filter hole (4) is a strip-shaped hole opened on the side wall of the flexible filter cylinder (2).

7. The filter element according to claim 1, characterized in that: The rigid shaping ring (6) is made of metal.

8. A floor drain comprising the filter element according to any one of claims 1-7, characterized in that: It also includes a drain body (15), on which the filter element is placed.

Images