Bathroom sink drain strainer

Abstract

The extremely simple combination structure of a base plate and a removable lid plate provides a sink drain strainer that is simple in structure, has low production costs, and is highly applicable. [Solution] The sink drain strainer 100 includes a bottom plate 10 and a cover plate 20. The bottom plate is laid over the sink drain and has a first through-hole. The cover plate is detachably placed over the bottom plate and covers the first through-hole.

Description

Technical Field

[0001] The present invention relates to the field of drain garbage catchers, and in particular to a garbage catcher for a washbasin drain.

Background Art

[0002] In the field of sanitary and bathroom equipment, a washbasin is generally provided with a drain pipe at the bottom and a drain opening on the basin surface. A drain garbage catcher is a small component that forms the core of a sanitary drainage system, serving as a component for opening / closing the terminal end and filtering at the drain of a washbasin.

[0003] Most conventional washbasin drainage structures are only provided with an integrated drain plug or a fixed filter net. Among these, the integrated drainage structure is difficult to attach and detach, and since the entire structure is fixed to the drain pipe, it cannot be removed independently, which makes the work of removing foreign matters such as hair, mud and sand, soap scum and the like extremely complicated when clogging occurs. In addition, the conventional fixed filter net is directly embedded inside the drain opening and does not have an independent blocking structure, so that after long-term use, strange odor and methane gas from the sewer pipe easily flow backward into the room through the washbasin drain opening, and at the same time, reptiles such as cockroaches and chironomids can crawl out along the sewer pipe, which causes the problem that the use environment of the sanitary bathroom is impaired.

[0004] In addition, conventional drainage components for washbasins have low versatility. Many drainage components need to be assembled in combination with a dedicated drain plug, and cannot be installed without modifying the existing pipeline structure of the washbasin. In addition, due to insufficient sealing performance at the assembly position between the component and the drain opening, water accumulated on the basin surface easily leaks through the gap on the side surface of the component. Furthermore, it is impossible to flexibly switch between a drainage state and a water storage state according to usage conditions, and cannot meet the various usage needs of users, such as storing water when washing the face, sealing to block strange odors, and filtering foreign matters.

Summary of the Invention

Problem to be Solved by the Invention

[0005] To overcome the shortcomings of conventional technology, this invention provides a drain strainer for washbasins, offering the beneficial effects of a simple structure, low production costs, and excellent applicability. [Means for solving the problem]

[0006] The technical means employed by this invention to solve its technical problem are as follows:

[0007] The drain strainer for a washbasin according to this invention includes a bottom plate and a lid plate. The aforementioned base plate is laid over the drain of the washbasin, and the base plate is provided with a first through-hole. The cover plate is detachably placed over the bottom plate and covers the first through hole.

[0008] As an improvement to the present invention, the cover plate is provided with a position limiting portion, and the position limiting portion is located within the first through hole.

[0009] As an improvement to the present invention, the cover plate includes a covering portion, a connecting portion, and a handle, the covering portion and the handle are connected via the connecting portion, and the position limiting portion is located at one end of the covering portion away from the handle.

[0010] As an improvement to this invention, the handle is a suction cup type handle.

[0011] As an improvement to the present invention, a guide curved surface is provided on the edge of the position limiting portion.

[0012] As an improvement to the present invention, the bottom plate is provided with a first groove, the first through hole is provided at the bottom of the first groove, and the cover plate is provided covering the first groove.

[0013] As an improvement to the present invention, a guide surface is provided at the opening of the first groove.

[0014] As an improvement to the present invention, the sink drain strainer further includes a filter mesh and a position limiting member, wherein the filter mesh is used to filter foreign matter from the drain strainer, and the position limiting member is used to restrict the position of the filter mesh.

[0015] As an improvement to the present invention, the bottom plate is provided with a first groove, a first annular portion is provided on one side of the first through hole at the bottom of the first groove, one end of the position limiting member is placed on the first annular portion, the position limiting member includes a main body and a contact module, the main body is annular in shape, the contact module is provided along the outer circumference of the main body, the main body is provided with a second through hole, the diameter of the second through hole is smaller than the diameter of the first through hole, one end of the contact module is connected to the main body, and the other end of the contact module abuts against the inner wall of the first groove.

[0016] As an improvement to the present invention, the filtration mesh includes a mesh body that is provided to sink inward from the periphery toward the center, the mesh body is provided with a plurality of first filtration holes, the mesh body is provided with a partition plate, the partition plate is positioned at the center of the mesh body, the position limiting member is fitted onto the mesh body, the outer edge of the mesh body is folded back after passing through the first through hole and the second through hole in sequence, and the folded outer edge of the mesh body is positioned outside the first through hole after passing between the inner wall of the first groove and the contact module and through the first through hole in sequence. [Effects of the Invention]

[0017] The beneficial effects of this invention are as follows: This invention provides a drain strainer for a washbasin. Due to its extremely simple combination structure of a base plate and a removable cover plate, a drain strainer is provided that is simple in structure, has low production costs, and is highly applicable. [Brief explanation of the drawing]

[0018] In order to more clearly illustrate the technical aspects of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below. The drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0019] Hereinafter, the present invention will be described in further detail with reference to the drawings and embodiments.

[0020] [Figure 1] It is a schematic diagram of the overall structure of the waste catcher for a washbasin drain according to the present invention. [Figure 2] It is an exploded view of the waste catcher for a washbasin drain according to the present invention. [Figure 3] It is a cross-sectional view of the waste catcher for a washbasin drain according to the present invention. [Figure 4] It is a schematic structural diagram of a filter mesh and a position limiting member. DETAILED DESCRIPTION OF EMBODIMENTS

[0021] Referring to FIGS. 1 to 4, the waste catcher for a washbasin drain includes a bottom plate 10 and a cover plate 20.

[0022] The bottom plate 10 is laid at the drain port of the washbasin, and the bottom plate 10 is provided with a first through hole 11.

[0023] The cover plate 20 is detachably covered on the bottom plate 10 and covers the first through hole 11.

[0024] This embodiment provides a sink drain strainer 100 that fits the drains of ordinary household ceramic sinks and artificial stone sinks in bathroom cabinets. The shape of the first through-hole 11 is such that it fits the sink drain and can be circular, square, or irregularly shaped, preferably circular. The outer diameter of the base plate 10 is larger than the diameter of the sink drain, and the edge of the base plate 10 is superimposed on the upper surface of the sink drain, so that the entire base plate is laid flat and seals the gap in the drain. The first through-hole 11 is a circular water passage and serves as the main drainage channel for sewage from the sink.

[0025] The cover plate 20 is a circular decorative cover plate 20 having the same outer diameter as the base plate 10. The cover plate 20 is detachably placed over the upper surface of the base plate 10. The dimensions of the cover plate 20 are larger than the dimensions of the first through hole 11, and the projected area of ​​the cover plate 20 completely covers the first through hole 11 of the base plate 10, thereby completely sealing the first through hole 11 and achieving water shutoff.

[0026] When the cover plate 20 is opened, the first through-hole 11 in the center of the bottom plate 10 is exposed, and the water accumulated in the sink flows down through the first through-hole 11 into the drainpipe below, completing normal drainage.

[0027] The cover plate 20 is placed over the bottom plate 10, and the cover plate 20 completely covers the first through hole 11. This prevents the backflow of foul odors from the drain pipe and mosquitoes from crawling out along the pipe, and also seals the drain, allowing water to be collected and stored on the surface of the washbasin for use in washing.

[0028] Furthermore, the cover plate 20 is provided with a position limiting portion 21, which is located within the first through hole 11.

[0029] With the above configuration, a cylindrical position limiting portion 21 is integrally molded on the lower surface of the cover plate 20, extending downward. The position limiting portion 21 is coaxially inserted into and extends from the first through hole 11, and the dimensions of the position limiting portion 21 are smaller than the dimensions of the first through hole 11. This enables dual positioning of the cover plate 20 in the radial and axial directions. The outer wall of the position limiting portion 21 abuts against the wall of the first through hole 11, restricting horizontal displacement of the cover plate 20 in the front, back, left, and right directions. This prevents the cover plate 20 from slipping and shifting due to the impact of water flow or contact with hands, ensuring that the cover plate 20 always accurately covers the first through hole 11, and avoiding the backflow of odors due to lateral gaps.

[0030] Furthermore, the cover plate 20 includes a covering portion 22, a connecting portion 23, and a handle 24. The covering portion 22 and the handle 24 are connected via the connecting portion 23, and the position limiting portion 21 is located at one end of the covering portion 22 away from the handle 24.

[0031] With the above configuration, the structure of the covering portion 22 at the bottom of the lid plate 20 is configured such that its outer diameter is larger than the dimensions of the first through hole 11. The lower surface of the covering portion 22 is a sealing plane that abuts against the bottom plate 10, and is intended to cover and seal the entire first through hole 11. The connecting portion 23 is provided at the center of the upper surface of the covering portion 22 and is a small-diameter cylindrical transition boss. The connecting portion 23 performs a vertical relay support function and raises the height of the handle 24, preventing the handle 24 from coming into direct contact with the water accumulated on the base surface of the covering portion 22. The lower end of the connecting portion 23 is integrally connected to the upper surface of the covering portion 22, and the upper end is fixed to the handle 24. The handle 24 is a circular pull handle. The handle 24 is integrally connected to the upper end of the connecting portion 23. The handle 24 is also suspended in mid-air parallel to the surface of the covering portion 22. This makes it easier to attach and detach the lid plate 20 by hooking and gripping it with your fingers.

[0032] Furthermore, handle 24 is a suction cup type handle.

[0033] With the above configuration, as shown in Figure 3, the handle 24 has an arc shape that bulges upward, and a circular vacuum suction cup is integrally provided on the inside of the arc. The middle part of the suction cup handle is connected to the upper end of the connecting part 23. When the sink is draining, the suction cup provided on the back of the handle 24 is pressed against the inner wall or side wall of the sink, causing suction and temporarily fixing the entire lid plate 20 in place by negative pressure. This eliminates the need to hold the lid plate by hand, the need to place the lid plate on the countertop, prevents the lid plate from being contaminated by dirt on the countertop, and does not occupy the operating space of the sink.

[0034] Furthermore, a guide curved surface 211 is provided on the edge of the position limiting section 21.

[0035] With the above configuration, the outer edge of the entire lower end of the position limiting portion 21 is chamfered, forming a continuous, smooth, annular guide surface 211. The guide surface 211 is an outwardly bulging arc-shaped transition surface that smoothly tapers downward and inward from the cylindrical side wall of the position limiting portion 21, reaching the bottom surface of the position limiting portion 21. The guide surface 211 encloses all edges of the bottom end of the position limiting portion 21. When attaching the cover plate 20, if you hold the arc-shaped handle 24 by hand and position it downward, the position limiting portion 21 will first come into contact with the opening of the first through hole 11. The guide surface 211 at the bottom end of the position limiting portion 21 will come into contact with the upper end edge of the first through hole 11, and the misalignment will be automatically corrected by the guiding action of the slope of the arc-shaped surface. As a result, even if the cover plate 20 is slightly off-center, the guide curved surface 211 slides the position limiting portion 21 into the first through hole 11, eliminating the need for precise manual alignment and allowing for quick positioning and assembly.

[0036] Furthermore, the bottom plate 10 is provided with a first groove 12. The first through hole 11 is located at the bottom of the first groove 12, and the cover plate 20 is placed over the first groove 12.

[0037] With the above configuration, a first recessed groove 12 is recessed inward as an annular recess on the upper surface of the bottom plate 10, and the first through hole 11 is provided coaxially at the center of the bottom of the first recessed groove 12. The outer diameter of the covering portion 22 of the cover plate 20 is set to be equal to or slightly smaller than the inner diameter of the first recessed groove 12, and the covering portion 22 as a whole is provided to fit over the inside of the first recessed groove 12 in a recessed fitting manner.

[0038] Furthermore, a guide surface 121 is provided at the opening of the first groove 12.

[0039] With the above configuration, a guide surface 121 is formed on the upper end of the inner wall of the opening of the first groove 12 by chamfering, and the guide surface 121 extends downward from the upper surface of the bottom plate 10 toward the inside of the groove. The guide surface 121 is a smooth, arc-shaped transitional slope and does not have sharp edges. The guide surface 121 is provided around the entire circumference of the groove opening and forms a trumpet-shaped entrance. When the cover plate 20 is positioned downward by holding the arc-shaped handle 24 by hand, the lower end of the covering part 22 first contacts the guide surface 121 at the opening of the first groove 12. The guide surface 121 performs a positioning correction function from the outer circumference, and even if the cover plate 20 is misaligned to the left or right, the inclined slope of the guide surface 121 automatically guides the covering part 22 into the inside of the groove. Furthermore, the guide curved surface 211 provided on the position limiting portion 21 at the lower end of the covering portion 22 automatically aligns with the first through hole 11 at the bottom of the groove, realizing a double guide structure with inner and outer components. There is no need for precise manual alignment.

[0040] Furthermore, the sink drain strainer 100 further includes a filter mesh 30 and a position limiting member.

[0041] The filter screen 30 is used to filter out foreign matter from the wastewater in the drain outlet strainer 100.

[0042] The position limiting member is used to restrict the position of the filter screen 30.

[0043] With the above configuration, the position-restricting member controls the position of the filter screen 30, preventing it from moving due to the force of the water flow when the drain strainer 100 is draining. The filter screen 30 filters out foreign matter in the drain strainer 100's wastewater, preventing it from flowing into the sewer. The filter screen 30 also functions as a barrier; even if valuables accidentally fall into the drain strainer 100, the filter screen 30 prevents them from falling into the sewer and becoming unrecoverable. Furthermore, the filter screen 30 works in cooperation with the position-restricting member, making it easy to replace the filter screen 30 when the drain strainer 100 is not draining. The filter screen 30 and the position-restricting member can be removed together from the drain strainer 100 and replaced with a new filter screen 30. After replacement, the position-restricting member is attached to the filter screen 30, and then the position-restricting member and the filter screen 30 are fitted and locked into the drain strainer 100. The structure is simple and easy to replace.

[0044] Furthermore, the bottom plate 10 is provided with a first groove 12, and a first annular portion 13 is provided on one side of the first through hole 11 at the bottom of the first groove 12. One end of the position limiting member rests on the first annular portion 13. The position limiting member includes a main body 41 and a contact module 42, the main body 41 being annular in shape, and the contact module 42 being provided along the outer circumference of the main body 41. The main body 41 is provided with a second through hole 411, the diameter of which is smaller than the diameter of the first through hole 11, one end of the contact module 42 is connected to the main body 41, and the other end of the contact module 42 is in contact with the inner wall of the first groove 12.

[0045] With the above configuration, the first groove 12 is used to position the position limiting member, and the diameter of the first groove 12 is larger than the diameter of the position limiting member. The position limiting member is positioned on one side of the first through hole 11 and abuts against the first annular portion 13. The main body 41 is positioned inside the first through hole 11, and the diameter of the main body 41 is smaller than the diameter of the first through hole 11. The abutment module 42 is positioned on the first annular portion 13 and abuts against the inner wall of the first groove 12. The abutment module 42 is used to position the filter screen 30, fixing the position of the filter screen 30 by bringing it into contact with the inner wall of the first groove 12.

[0046] Furthermore, the filter net 30 includes a mesh body 31 that is provided so as to slope and sink in from the periphery toward the center, and the mesh body 31 is provided with a plurality of first filter holes 32. A partition plate 33 is provided on the mesh body 31, and the partition plate 33 is positioned at the center of the mesh body 31. The position limiting member is fitted onto the mesh body 31, and the outer edge of the mesh body 31 is folded back after sequentially passing through the first through hole 11 and the second through hole 411, and the folded outer edge of the mesh body 31 is positioned outside the first through hole 11 after sequentially passing between the inner wall of the first groove 12 and the contact module 42 and through the first through hole 11.

[0047] With the above configuration, the partition plate 33 facilitates the removal of the mesh body 31 and also has the function of confirming the direction of the mesh body 31. The mesh body 31 passes through the first through hole 11 and the second through hole 411 in sequence, then comes into contact with the contact module 42, and then passes through the first through hole 11 again, thereby forming a fixing structure that fixes the position of the filter screen 30. If the diameter of the first filter hole 32 is smaller than the diameter of the contact module 42, the contact module 42 causes the filter screen 30 to come into contact with the inner wall of the first groove 12, thereby fixing the position of the filter screen 30. If the diameter of the first filter hole 32 is larger than the diameter of the contact module 42, the contact portion passes through the first filter hole 32 and comes into contact with the inner wall of the first groove 12, and the first filter hole 32 is fitted onto the contact portion, thereby fixing the position of the filter screen 30.

[0048] The above are merely one or more examples provided based on specific content, and the specific embodiments of this utility model are not limited to these descriptions. Any technical reasoning or substitutions that are similar to, or similar to, the methods, structures, etc. of this utility model, or that are made under the concept of this utility model, should be considered to fall within the scope of protection of this utility model.

Claims

1. A drain strainer for a washbasin, comprising a bottom plate (10) and a cover plate (20), The base plate (10) is laid over the drain of the washbasin, and the base plate (10) is provided with a first through hole (11). The sink drain strainer is characterized in that the cover plate (20) is detachably placed over the bottom plate (10) and covers the first through hole (11).

2. The sink drain strainer according to claim 1, characterized in that the cover plate (20) is provided with a position limiting portion (21), and the position limiting portion (21) is located within the first through hole (11).

3. The washbasin drain strainer according to claim 2, characterized in that the cover plate (20) includes a covering portion (22), a connecting portion (23), and a handle (24), the covering portion (22) and the handle (24) are connected via the connecting portion (23), and the position limiting portion (21) is located at one end of the covering portion (22) away from the handle (24).

4. The sink drain strainer according to claim 3, characterized in that the handle (24) is a suction cup type handle.

5. The sink drain strainer according to claim 3, characterized in that a guide curved surface (211) is provided on the edge of the position limiting portion (21).

6. The sink drain strainer according to claim 1, characterized in that the bottom plate (10) is provided with a first groove (12), the first through hole (11) is provided at the bottom of the first groove (12), and the cover plate (20) covers the first groove (12).

7. The sink drain strainer according to claim 6, characterized in that a guide surface is provided at the opening of the first groove (12).

8. The aforementioned sink drain strainer (100) further includes a filter mesh (30) and a position limiting member (40), The aforementioned filter screen (30) is used to filter out foreign matter from the wastewater in the drain outlet debris receiver (100). The sink drain strainer according to claim 1, characterized in that the position limiting member (40) is used to restrict the position of the filter mesh (30).

9. The bottom plate (10) is provided with a first groove (12), and a first annular portion (13) is provided on one side of the first through hole (11) at the bottom of the first groove (12), and one end of the position limiting member (40) is placed on the first annular portion (13), and the position limiting member (40) includes a main body (41) and a contact module (42), the main body (41) is annular, and the contact module (42) is the main body The washbasin drain strainer according to claim 8, characterized in that it is provided along the outer circumference of (41), the main body (41) is provided with a second through hole (411), the diameter of the second through hole (411) is smaller than the diameter of the first through hole (11), one end of the contact module (42) is connected to the main body (41), and the other end of the contact module (42) is in contact with the inner wall of the first groove (12).

10. The filtration mesh (30) includes a mesh body (31) that is provided to slope and sink inward from the periphery toward the center, the mesh body (31) is provided with a plurality of first filtration holes (32), the mesh body (31) is provided with a partition plate (33), the partition plate (33) is positioned at the center of the mesh body (31), the position limiting member (40) is fitted onto the mesh body (31), the outer edge of the mesh body (31) is folded back after sequentially passing through the first through hole (11) and the second through hole (411), and the folded outer edge of the mesh body (31) is positioned outside the first through hole (11) after sequentially passing between the inner wall of the first groove (12) and the contact module (42) and the first through hole (11). This is the washbasin drain strainer according to claim 9.

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