A trap with a hole

By designing a perforated drain sleeve and agitator structure, the problem of residue getting stuck in the filter disc of the kitchen sink drain was solved, enabling easy cleaning of residue and improving cleaning efficiency.

CN224451803UActive Publication Date: 2026-07-03FUJIAN WEIPU TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN WEIPU TECH CO LTD
Filing Date
2025-06-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing kitchen sink drain systems often have filter discs that get stuck with food scraps after they are caught, making cleaning difficult and increasing water flow resistance.

Method used

A perforated drain device was designed, comprising a sleeve, a filter disc, and a disturbance component. The rotating disturbance component drives the blades on the side branches to shear off stuck residue. Combined with the drive structure of the movable shaft and spring, the residue can be easily removed.

Benefits of technology

It effectively cuts and removes stuck residue, reducing cleaning resistance and allowing the filter disc to be easily removed, avoiding the need for strenuous pulling.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224451803U_ABST
    Figure CN224451803U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of kitchen and bathroom products, and discloses a perforated drainer. The structure includes a sleeve and a filter disc. The filter disc is nested at the top of the sleeve, and an inner support is fixed inside the sleeve. A disturbance component is nested on the inner support and is located below the filter disc. The filter disc has a driving structure for rotating the disturbance component. The filter disc has a drain hole. The disturbance component includes a side branch that rotates with the disturbance component. The side branch is located below the drain hole and has a clearance fit with the bottom of the filter disc. This utility model has a driving structure on the filter disc that cooperates with the disturbance component added inside the sleeve. By pressing the movable shaft, the movable shaft drives the disturbance component to rotate. The rotation of the disturbance component causes the blade on the side branch to contact the vegetable leaves, roots, and vegetable strips stuck in the drain hole. It cooperates with the edge of the drain hole to cut off the residue. After pressing and rotating repeatedly until there is no obvious resistance to the rotation of the side branch, the filter disc can be lifted, and the residue on the filter disc can be easily removed without having to pull it out.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of kitchen and bathroom products, specifically a drain with holes. Background Technology

[0002] Kitchen sink drainers are common kitchen products whose main function is to intercept larger food scraps at the sink drain outlet.

[0003] In the prior art, after the filter disc of the vegetable washing sink drain intercepts food residue, some strip-shaped or filamentous residue often gets embedded and stuck in the drain hole of the filter disc. As the residue accumulates, the water flow resistance of the filter disc increases during the washing process, further pressing the embedded residue, making it difficult to remove when cleaning the filter disc, causing inconvenience. Utility Model Content

[0004] To address the above problems, this utility model provides a drain with holes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a perforated drain device, comprising a sleeve and a filter disc. The sleeve is hollow, and the filter disc is nested at the top of the sleeve. An inner support is fixed inside the sleeve, and a central column is fixed in the middle of the inner support. A disturbance component is nested on the central column, and the disturbance component is rotatably connected to the central column. The disturbance component is located below the filter disc, and the filter disc has a driving structure for rotating the disturbance component. The filter disc has a drain hole, and the disturbance component includes a side branch that rotates with the disturbance component. The side branch is located below the drain hole and has a clearance fit with the bottom of the filter disc.

[0006] Furthermore, the disturbance component includes a rotor, and several side branches are provided and fixed around the outside of the rotor. The rotor has a rotating shaft at its bottom, which is nested on the central column. The side branches have sharp blades on their sides, which are used to cooperate with the edge of the drain hole to cut off the residue.

[0007] Furthermore, the driving structure on the filter disc includes a movable shaft and a spring. The filter disc has a hole in the middle, and the movable shaft is nested in the hole. The movable shaft has a groove along its length on its side. The inner wall of the hole has a protruding structure that engages with the groove, thereby restricting the degree of freedom of the movable shaft to rotate around its axis within the hole. The spring is nested between the movable shaft and the filter disc, and the spring provides an upward elastic force to the movable shaft. The rotor has a cavity on its inner side, and the movable shaft extends into the cavity. The inner wall of the cavity has several spiral guide ribs. The bottom of the movable shaft has a laterally extending contact pin, which is used to contact the guide ribs.

[0008] Furthermore, there is a gap between the bottom of the guide rib and the bottom of the rotor cavity, and the depth of the gap is greater than the thickness of the contact pin. The projected length of the guide rib on the vertical plane is less than the length of the movable shaft.

[0009] Furthermore, the arc length of the projection of the guide rib onto the horizontal plane is less than half the circumference of the rotor cavity.

[0010] Furthermore, the projection of the blade onto the horizontal plane is inclined or arc-shaped.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention features a rotating agitator inside the sleeve and a drive structure on the filter disc that works in conjunction with the agitator. By pressing the movable shaft, the agitator rotates. The rotation of the agitator causes the blades on the side branches to come into contact with the vegetable leaves, roots, and other residues stuck in the drain hole. The blades work in conjunction with the edge of the drain hole to cut the residues. After repeated pressing and rotation until there is no significant resistance in the rotation of the side branches, the filter disc can be lifted, and the residues on the filter disc can be easily removed without the need for strenuous removal. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a perforated drain device according to this utility model.

[0014] Figure 2 This is an exploded view of the structure of a perforated drain device according to this utility model.

[0015] Figure 3 This is a schematic diagram of the orthographic structure of the filter disc and the disturbance component of this utility model.

[0016] Figure 4 This is a three-dimensional structural schematic diagram of the disturbance component of this utility model.

[0017] In the diagram: 1. Sleeve; 2. Inner support; 3. Filter disc; 4. Disruptor.

[0018] 21. Central column; 3a. Drain hole; 31. Movable shaft; 32. Spring; 41. Rotor; Side branch; 31a. Contact pin; 41a. Rotating shaft; 41b. Guide rib; 42a. Blade. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0020] Examples, such as Figures 1-4 As shown: This utility model provides a perforated drain device, the structure of which includes a sleeve 1 and a filter disc 3. The sleeve 1 is hollow and is used to install at the drain outlet of a kitchen sink. The filter disc 3 is nested on the top of the sleeve 1. In this embodiment, the inner side of the top of the sleeve 1 has an annular stepped structure that narrows inward, and the filter disc 3 is placed on this structure. An inner support 2 is fixedly provided inside the sleeve 1. The inner support 2 extends from the inner wall of the sleeve 1 towards the central axis of the sleeve 1. A central column 21 is fixedly provided in the middle of the inner support 2. The axis of the central column 21 is collinear with the axis of the sleeve 1. The central column 21 is hollow. In this embodiment, a disturbance member 4 is nested on the central column 21. The disturbance member 4 is rotatably connected to the central column 21. The disturbance member 4 includes a rotor 41. The bottom of the rotor 41 is provided with a rotating shaft 41a. The rotating shaft 41a is nested on the central column 21. The disturbance member 4 rotates on the central column 21 through the rotating shaft 41a.

[0021] Specifically, the disturbance component 4 is located below the filter disc 3. The filter disc 3 is equipped with a driving structure to drive the disturbance component 4 to rotate. The filter disc 3 is equipped with a drain hole 3a. The disturbance component 4 includes a side branch that rotates with the disturbance component 4. Several side branches are provided and are fixed around the outside of the rotor 41. The side branches are located below the drain hole 3a and are clearance-fitted with the bottom of the filter disc 3. The side of the side branch is equipped with a sharp blade 42a. Most of the residue stuck on the filter disc 3 remains above the filter disc 3, and a small part passes through the drain hole 3a and is located below the filter disc 3. Due to the large amount of residue, the drain hole 3a is stuck, making it inconvenient to clean the filter disc 3. The rotating side branch drives the blade 42a to cut the vegetable leaves, roots, vegetable strips and other residues stuck in the drain hole 3a.

[0022] Meanwhile, the driving structure on the filter disc 3 includes a movable shaft 31 and a spring 32. The filter disc 3 has a hole in the middle, and the movable shaft 31 is nested inside the hole. The side of the movable shaft 31 has a groove along its length, and the inner wall of the hole has a protruding structure that engages with the groove, thus restricting the degree of freedom of rotation of the movable shaft 31 around its axis within the hole. The spring 32 is nested between the movable shaft 31 and the filter disc 3, providing an upward elastic force to the movable shaft 31. The rotor 41 has a cavity on its inner side, and the movable shaft 3... 1. The shaft extends into the cavity, and the inner wall of the cavity is provided with several spiral guide ribs 41b. The bottom of the movable shaft 31 is provided with a horizontally extending contact pin side branch 31a. The contact pin side branch 31a is used to contact the guide ribs 41b when the movable shaft 31 moves downward against the elastic force of the spring 32, thereby pushing the guide ribs 41b to make the rotor 41 rotate, which in turn drives the blade 42a to rotate, and cooperates with the edge of the drain hole 3a to cut the residue stuck in the drain hole 3a.

[0023] It should be noted that the arc length of the projection of the guide rib 41b on the horizontal plane is less than half the circumference of the cavity of the rotor 41, thus forming at least two guide ribs 41b, which makes the contact pin side branch on the downward movable shaft 31 and the contact pin 31a more smoothly contact each other. The guide rib 41b is in the shape of a strip spiraling downward along the inner wall of the rotor 41, which makes the contact pin side branch on the rebound movable shaft 31 and the contact pin 31a rebound better after passing through the guide rib 41b.

[0024] It should be noted that the projected length of the guide rib 41b in the vertical plane is less than the length of the movable shaft 31, and less than the sum of the thickness of the spring 32 compressed to its limit and the length of the movable shaft 31. Furthermore, there is a gap between the bottom of the guide rib 41b and the bottom of the cavity of the rotor 41, and the depth of the gap is greater than the thickness of the contact pin side branch 31a. This allows the contact pin side branch 31a to disengage from the guide rib 41b after pushing it to the bottom, allowing the rotor 41 to continue rotating due to inertia. Whether it is shearing residue or stopping due to obstruction after encountering residue, it will not affect the springback of the movable shaft 31 and the next press.

[0025] In this embodiment, the projection of the blade 42a on the horizontal plane is inclined or arc-shaped. Specifically, the blade 42a near the end of the lateral branch is wider, while the blade 42a near the root of the lateral branch is narrower. This allows a lateral force to be applied to the residue during cutting, making it easier for the blade 42a to cut in.

[0026] In summary, in this embodiment, the disturbance component 4 is embedded in the central column 21 via the rotating shaft 41a below the rotor 41. Then, the filter disc 3 is placed on the sleeve 1. After the sink is used, the filter disc 3 is cleaned. The user presses the movable shaft 31 downwards, causing it to move downwards. The side contact pin 31a pushes the guide rib 41b downwards, converting the vertical force into lateral rotation, causing the rotor 41 to rotate. The blade 42a on the side branch comes into contact with the vegetable leaves, roots, and strips stuck in the drain hole 3a, and cuts them off by working with the edge of the drain hole 3a. After a single downward press, the spring 32 drives the movable shaft 31 to rebound and contact the side branch. The 31a moves upward past the back of the guide rib 41b and reaches the top. After another press, once the side branch rotates without significant resistance, the filter plate 3 can be lifted, and the residue on the filter plate 3 can be easily removed without having to pull it out.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A perforated drain, comprising a sleeve and a filter disc, said sleeve being hollow, said filter disc being nested in the top end of the sleeve, characterized in that: An inner support is fixedly provided inside the sleeve, a central column is fixedly provided in the middle of the inner support, and a disturbance element is nested on the central column, with the disturbance element rotatably connected to the central column; The disturbance component is located below the filter disc. The filter disc is provided with a driving structure for driving the disturbance component to rotate. The filter disc is provided with a drain hole. The disturbance component includes a side branch that rotates with the disturbance component. The side branch is located below the drain hole and is clearance-fitted with the bottom of the filter disc.

2. A trap according to claim 1, wherein: The disturbance component includes a rotor, and several side branches are provided and fixed around the outside of the rotor. The rotor has a rotating shaft at its bottom, which is nested on the central column. The side branches have sharp blades on their sides.

3. A trap according to claim 2, wherein: The drive structure on the filter disc includes a movable shaft and a spring. The filter disc has a hole in the middle, and the movable shaft is nested in the hole. The movable shaft's degree of freedom of rotation around its axis is restricted within the hole. The spring is nested between the movable shaft and the filter disc, and the spring provides an upward elastic force to the movable shaft. The rotor has a cavity inside, the movable shaft extends into the cavity, and the inner wall of the cavity is provided with several spiral guide ribs. The bottom of the movable shaft is provided with a laterally extending contact pin, which is used to contact the guide ribs.

4. A trap according to claim 3, wherein: There is a gap between the bottom of the guide rib and the bottom of the rotor cavity, and the depth of the gap is greater than the thickness of the contact pin. The projected length of the guide rib on the vertical plane is less than the length of the movable shaft.

5. A trap according to claim 3, wherein: The arc length of the projection of the guide rib onto the horizontal plane is less than half the circumference of the rotor cavity.

6. A trap according to claim 2, wherein: The projection of the blade onto the horizontal plane is inclined or arc-shaped.