Anti-blocking floor drain

This anti-clogging floor drain, with its multi-layer filtration design and detachable structure, solves the problems of difficult disassembly and incomplete filtration in traditional floor drains, achieving easy cleaning and efficient filtration, and preventing pipe blockage.

CN224259556UActive Publication Date: 2026-05-19SHENZHEN HUACHUANG UNITED DESIGN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HUACHUANG UNITED DESIGN CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional floor drains use a single-layer filter structure, which makes disassembly difficult and cannot effectively filter fine impurities, leading to pipe blockage.

Method used

It adopts a multi-layer filtration design, including a filter panel, a filter screen, and a permeable screen. Both the filter panel and the permeable screen are detachable. The density of the filter screen is greater than that of the panel, and the permeable screen has a magnetic adsorption layer, forming a gradient filtration.

Benefits of technology

It enables easy disassembly and cleaning, effectively avoids pipe blockage, extends filtration time, and improves filtration efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an anti-blocking type floor drain which comprises a shell and a fixing base installed on the shell, the top of the shell is provided with an installation part fixedly connected with a floor, the center of the top of the shell is sunken downwards to form an annular groove, a filtering structure is arranged in the annular groove, the filtering structure comprises a filtering panel, a filtering net and a leakage net, the filter panel, the filter screen and the leakage screen are sequentially arranged on the annular groove from top to bottom; the filtering panel covers the water inlet of the annular groove; the leakage net covers the water outlet of the annular groove; and the leakage net is designed to be hemispherical. The multi-layer filtering design is adopted, and the filtering panel, the filtering net and the leakage net are all detachably connected, so that disassembly and cleaning are easy. The filtering panel, the filtering net and the leakage net form gradient filtering, the filtering layer from coarse to fine is achieved, and pipeline blockage is effectively avoided. And secondly, the arc-shaped surface of the hemispherical leakage net can increase the accommodating space of impurities, the filtering time of the leakage net is prolonged, and frequent disassembly and washing are not needed.
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Description

Technical Field

[0001] This utility model relates to a floor drain, specifically an anti-clogging floor drain. Background Technology

[0002] As a key component of building drainage systems, the anti-clogging performance of floor drains directly affects drainage efficiency and maintenance costs. Traditional floor drains mostly adopt a single-layer filter structure and an integrated design, which have the following technical defects: the integrated design makes disassembly difficult; the single-layer filter can only initially intercept hair and large particles of impurities, and in order to reduce water flow resistance, the pore size of the single-layer filter is designed to be relatively large, resulting in many particles of impurities and some hair still not being completely filtered out, forming a mesh structure in the floor drain pipe and obstructing water flow.

[0003] Therefore, it is necessary to propose further solutions to address the problem of the aforementioned floor drain using a single-layer filtration structure. Utility Model Content

[0004] This utility model provides an anti-clogging floor drain to solve the above-mentioned technical problems.

[0005] The solution adopted by this utility model to achieve its technical effect is as follows:

[0006] A clog-resistant floor drain includes a housing and a mounting base installed on the housing. The top of the housing has a mounting part for fixed connection with the floor. The drain is characterized in that the center of the top of the housing is recessed downwards to form an annular groove, and a filter structure is disposed within the annular groove. The filter structure includes a filter panel, a filter screen, and a seepage screen, wherein:

[0007] The inner wall of the annular groove has a first limiting flange extending circumferentially towards the center. The top of the annular groove forms a water inlet. The water inlet has a second limiting flange extending circumferentially towards the center. The bottom of the annular groove has a water outlet coaxially arranged with the water inlet. The water outlet has a third limiting flange extending circumferentially towards the center.

[0008] The filter screen is located in the annular groove, and its bottom abuts against the first limiting flange. The upper surface of the filter screen is provided with a plurality of filter holes.

[0009] The filter panel covers the water inlet, and its bottom abuts against the second limiting flange. The filter panel is provided with a plurality of flow guiding holes evenly distributed on it.

[0010] The seepage net is detachably covered on the water outlet, and its bottom abuts against the third limiting flange. The seepage net has a hemispherical design, and several seepage filter holes are evenly distributed circumferentially on the outer wall of the spherical surface of the seepage net.

[0011] Preferably, the filter panel has a detachment hole at its center and a top cover that covers the detachment hole.

[0012] Preferably, a connector is vertically connected to the outlet, and the inner wall of the connector away from the housing is formed with an internal thread, and the outer wall of the fixing seat is formed with an external thread, so that the fixing seat and the connector are threadedly connected.

[0013] Preferably, the mounting base is provided with an odor-proof filter element, and the bottom of the odor-proof filter element is connected to the drainage channel.

[0014] Preferably, the density of the filter holes on the filter screen is greater than the density of the flow guide holes on the filter panel.

[0015] Preferably, the hemispherical inner cavity of the seepage net is provided with a magnetic adsorption layer, which is a permanent magnet used to adsorb metallic impurities in the water flow.

[0016] The beneficial effects of this utility model are as follows:

[0017] This application employs a multi-layer filtration design, with the filter panel, filter screen, and permeate screen all being detachable for easy disassembly and cleaning. The filter panel, filter screen, and permeate screen form a gradient filtration system, achieving a "coarse to fine" filtration process and effectively preventing pipe blockage. Furthermore, the curved surface of the hemispherical permeate screen increases the impurity-accommodating space, extending the filtration time and eliminating the need for frequent disassembly and cleaning. Attached Figure Description

[0018] Figure 1 This is an exploded view of an anti-clogging floor drain disclosed in an embodiment of the present utility model;

[0019] Figure 2 This is one of the schematic diagrams of the shell structure disclosed in the embodiments of this utility model;

[0020] Figure 3 This is the second schematic diagram of the shell structure disclosed in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixing base disclosed in an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the seepage mesh disclosed in an embodiment of the present utility model. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The preferred embodiment of this utility model discloses an anti-clogging floor drain, including a housing 1 and a fixing seat 2 mounted on the housing 1. The top of the housing 1 is provided with a mounting part 11 that is fixedly connected to the floor. The top center of the housing 1 is recessed downward to form an annular groove 12. A filter structure 3 is provided in the annular groove 12. The filter structure 3 includes a filter panel 31, a filter screen 32, and a seepage screen 33. In detail:

[0027] like Figure 1 As shown, the inner wall of the annular groove 12 has a first limiting flange 1201 extending circumferentially towards the center. The top of the annular groove 12 forms a water inlet 121, and a second limiting flange 1202 extends circumferentially towards the center from the water inlet 121. The bottom of the annular groove 12 has a water outlet 122 coaxially arranged with the water inlet 121, and a third limiting flange 1203 extends circumferentially towards the center from the water outlet 122.

[0028] The filter screen 32 is located in the annular groove 12, and its bottom abuts against the first limiting flange 1201. The upper surface of the filter screen 32 is provided with a plurality of filter holes 411.

[0029] The filter panel 31 covers the water inlet 121, and its bottom abuts against the second limiting flange 1202. Multiple flow guide holes 311 are evenly opened on the filter panel 31.

[0030] The seepage net 33 is detachably covered on the outlet 122, and its bottom abuts against the third limiting flange 1203. The seepage net 33 is hemispherical in shape, and several seepage filter holes 511 are evenly distributed circumferentially on the outer wall of the spherical surface of the seepage net 33.

[0031] Furthermore, such as Figure 1 As shown, the filter panel 31 has a removal hole 312 in the center and a top cover 4 that covers the removal hole 312.

[0032] Further, please refer to Figure 4 and combined Figure 1 A connector 13 is vertically connected at the outlet 122. The inner wall of the connector 13 is formed with an internal thread 131 at the end away from the housing 1, and the outer wall of the fixing seat 2 is formed with an external thread 21, so that the fixing seat 2 is threadedly connected to the connector.

[0033] Furthermore, the mounting base 2 is equipped with an odor-proof filter element 22, and the bottom of the odor-proof filter element 22 is connected to the drainage channel.

[0034] Preferably, the density of the filter holes 411 on the filter screen 32 is greater than the density of the flow guide holes 311 on the filter panel 31.

[0035] Preferably, the hemispherical inner cavity of the seepage net 33 is provided with a magnetic adsorption layer, which is a permanent magnet and is used to adsorb metal impurities in the water flow.

[0036] When disassembling the filter structure 3, the top cover 4 covering the mounting hole of the filter panel 313 is first opened, and then the filter panel 313 is removed by inserting a finger into the removal hole 312. Then the filter screen 324 and the leakage screen 335 can be removed in sequence and cleaned.

[0037] In summary, this application employs a multi-layer filtration design, and the filter panel 313, filter screen 324, and permeable screen 335 are all detachable, facilitating easy disassembly and cleaning. The filter panel 313, filter screen 324, and permeable screen 335 form a gradient filtration system, achieving a "coarse to fine" filtration hierarchy, effectively preventing pipe blockage. Furthermore, the curved surface of the hemispherical permeable screen 335 increases the impurity-accommodating space, extending the filtration time of the permeable screen 335 and eliminating the need for frequent disassembly and cleaning.

[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A clog-resistant floor drain, comprising a housing and a mounting base installed on the housing, wherein the top of the housing is provided with a mounting part for fixed connection with the floor, characterized in that, The top center of the housing is recessed downwards to form an annular groove, and a filter structure is provided within the annular groove. The filter structure includes a filter panel, a filter screen, and a permeation screen, wherein: The inner wall of the annular groove has a first limiting flange extending circumferentially towards the center. The top of the annular groove forms a water inlet. The water inlet has a second limiting flange extending circumferentially towards the center. The bottom of the annular groove has a water outlet coaxially arranged with the water inlet. The water outlet has a third limiting flange extending circumferentially towards the center. The filter screen is located in the annular groove, and its bottom abuts against the first limiting flange. The upper surface of the filter screen is provided with a plurality of filter holes. The filter panel covers the water inlet, and its bottom abuts against the second limiting flange. The filter panel is provided with a plurality of flow guiding holes evenly distributed on it. The seepage net is detachably covered on the water outlet, and its bottom abuts against the third limiting flange. The seepage net has a hemispherical design, and several seepage filter holes are evenly distributed circumferentially on the outer wall of the spherical surface of the seepage net.

2. The anti-clogging floor drain according to claim 1, characterized in that: The filter panel has a detachment hole in the center and a top cover that covers the detachment hole.

3. The anti-clogging floor drain according to claim 1, characterized in that: A connector is vertically connected to the water outlet. The inner wall of the connector is formed with an internal thread at the end away from the housing, and the outer wall of the fixing seat is formed with an external thread, so that the fixing seat and the connector are threadedly connected.

4. The anti-clogging floor drain according to claim 3, characterized in that: The mounting base is equipped with an odor-proof filter element, and the bottom of the odor-proof filter element is connected to the drainage channel.

5. A clog-resistant floor drain according to claim 1, characterized in that: The density of the filter holes on the filter screen is greater than the density of the flow guide holes on the filter panel.

6. A clog-resistant floor drain according to claim 1, characterized in that: The hemispherical inner cavity of the seepage net is equipped with a magnetic adsorption layer, which is a permanent magnet used to adsorb metallic impurities in the water flow.