Countertop lavatory
By designing an eccentric drain opening and an inclined placement surface in the countertop washbasin, the problems of preventing water splashing and reducing water demand are solved, resulting in better drainage performance and lower water consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ALAPA LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-07-24
AI Technical Summary
Existing countertop washbasins are inadequate in preventing water splashing and reducing water demand, especially in effectively collecting water.
A countertop washbasin is designed with an eccentrically arranged drain opening and an inclined placement surface. The placement surface is inclined to the plane of the basin edge, and the bottom extends from the basin edge and surrounds the drain opening. The placement surface is aligned with the surface of the support plate to ensure that the washbasin is placed reliably. The drain opening is positioned at the lowest point to reduce splashing and reduce water consumption.
It effectively prevents water splashing, reduces water usage, and achieves lower water consumption and better discharge performance.
Smart Images

Figure CN224549265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a countertop washbasin, which has: a bottom; a basin wall extending from the bottom, the basin wall having a basin edge located in a plane; a drain opening disposed in the bottom and eccentrically disposed therein; and a placement surface disposed on the bottom for placing the countertop washbasin on a support plate. Background Technology
[0002] A washbasin is an upward-opening container with an outlet to a sewer and a faucet attached to it. For example, the washbasin is mounted on a vertically oriented wall, wherein the wall has a faucet receiving portion in the mounting area. The faucet side typically has a widened storage rim, for example, where soap or other items are placed. The washbasin is constructed with a groove, at the lowest point of which is an outlet or interface to a sewer.
[0003] In addition to wall-mounted washbasins, there are also washbasins embedded in washbasins. For this purpose, the washbasin has an outwardly projecting, circumferential boss with a shape and size that can cover an installation opening within the washbasin, and the boss extends beyond the installation opening. The washbasin basin is guided through the installation opening and, in the assembled state, is primarily located below the washbasin surface. A faucet is typically mounted on the washbasin, and the drain opening of the basin is also positioned at the lowest point of the washbasin, allowing for complete water drainage. In the assembled state, only the top side of the washbasin is visible, extending inward from the edge of the basin and towards the drain opening.
[0004] Countertop washbasins differ from those recessed into a washbasin in their assembly method. Countertop washbasins are not wall-mounted, nor are they installed in an opening within the washbasin; instead, they are placed on the washbasin countertop, so that the outside of the basin is visible, and the basin is almost entirely above the washbasin countertop. The faucet is either located within the washbasin or on the wall. The drain opening is located at the lowest point in the bottom of the basin. Water drains into the sewer through appropriate pipes or drain openings, which are guided through relatively small openings within the washbasin.
[0005] One of the problems with existing countertop washbasins is how to prevent water splashing, and the increased water demand when the washbasin is used to collect water (e.g., for soaking or rinsing items). Utility Model Content
[0006] Therefore, the objective of this invention is to provide a countertop washbasin that avoids or minimizes the disadvantages of the prior art and allows for flexible assembly.
[0007] The task is solved by a countertop washbasin having the features of the independent claims. Advantageous configurations and extensions of this invention are disclosed in the dependent claims, description, and drawings.
[0008] A countertop washbasin has: a bottom; a basin wall extending from the bottom, the basin wall having a basin edge located in a plane; a drain opening eccentrically disposed therein in the bottom; and a placement surface disposed on the bottom for placing the countertop washbasin on a support plate, characterized in that the placement surface is inclined to the plane of the basin edge. The bottom may also extend continuously from the basin edge to the drain opening, the bottom having a surface formed on the inside of the countertop washbasin that typically collects water and guides it to the drain opening. The countertop washbasin is mounted on the support plate by means of the placement surface, which is disposed on the bottom on the outside or lower side of the countertop washbasin and at least partially surrounds the drain opening. Advantageously, the placement surface extends entirely around the drain opening. The placement surface is preferably constructed as a plane, the placement surface being shaped at least corresponding to the surface of the support plate, such that the placement surface can be reliably placed and mounted on the support plate. In particular, the placement surface is constructed flat and oriented inclined relative to the plane formed by the basin edge. In the case of a support plate that is normally horizontally oriented, the placement surface is also horizontally or level in the assembled state. In the subject matter of the claims, the basin edge plane is oriented obliquely or inclined relative to the support plate, thus enabling the opening of the washbasin, constructed by the basin edge and bounded circumferentially, to be assembled with a different orientation relative to the user or faucet. Positioning the drain opening outside the bottom center allows it to be positioned at its lowest point in the assembled state, while the inclined position of the bottom and basin walls (extending from the bottom towards the basin edge) improves splash prevention. The inclined position also reduces the amount of water required to reach the desired water level when the drain opening is closed, thus achieving lower water consumption when the washbasin is closed, in addition to using tap water.
[0009] In one configuration, the bottom is constructed in a truncated spherical, conical, or pyramidal shape. Particularly in the case of a truncated spherical bottom, or a bottom that is truncated spherical together with the basin walls, the drain opening and the corresponding placement surface can be arranged at any point on the bottom without restricting drainage function. Alternatively, the bottom is constructed in a conical shape, especially a truncated cone, wherein the apex of the cone or truncated cone may be rounded. Instead of a rotationally symmetric cone, the bottom can also be constructed in a pyramidal shape, i.e., composed of multiple substantially flat surfaces, which facilitates arranging the drain opening in the downwardly arched or sloping areas of the sides to ensure full drainage function. The pyramidal configuration facilitates reliable mounting on a support plate because it provides an enlarged flat surface for placement on the washbasin.
[0010] In one configuration, the basin rim and basin walls are arranged around a central axis, wherein the drain openings are arranged offset relative to the central axis. In another configuration, the central axis forms an axis of symmetry; in particular, the bottom may be perpendicular to the central axis and / or the basin walls in cross-section, and therefore the basin rim may also be circular, angular, or elliptical in construction.
[0011] In one configuration of a countertop washbasin, the basin wall connects to the bottom and is oriented parallel to or inclined to the central axis, and is polygonal or arc-shaped. In the inclined configuration, the basin wall can taper conically towards the edge of the basin, so that when viewed from the opening of the washbasin, the basin wall extends outward towards the bottom. This provides better splash prevention. Alternatively, the inclined construction makes the basin wall widen outward towards the edge of the basin, thereby making the washbasin easier to access. The basin wall can also be oriented parallel to the central axis, thus forming a cylindrical structure, for example, in a configuration where the basin wall's outline in the plane of the basin edge is circular. The bottom of the basin connects to the basin edge or basin wall and forms a groove for the washbasin with a drain opening. Instead of a circular or rounded configuration (where the basin wall is curved), the basin wall can also be polygonal, wherein the groove is always closed by the washbasin structure, except for the drain opening.
[0012] To improve the drainage performance of the washbasin, in one configuration, the bottom is constructed to be inclined or arched toward the drain opening, so as to ensure that the drain opening is located at the lowest point of the washbasin in the assembled state.
[0013] The inclination of the placement surface to the edge plane of the basin is between 5° and 25°, wherein all inclination levels between the two are feasible, especially the inclination between 10° and 20°, preferably 15°.
[0014] Countertop washbasins can be constructed from metal, plastic, ceramic, or glass, and often feature surface coatings to ensure a long lifespan. Especially in metal configurations, the substrate can be easily manufactured within the framework of deep drawing or other modified processes.
[0015] In particular, the placement surface has a flat shoulder at the conical or truncated spherical recess, and the drainage opening (along with, if necessary, a device for securing the washbasin to the support plate) connects to said shoulder. The placement surface is especially annular to ensure that the washbasin is evenly supported on the support plate.
[0016] The bottom can have a polished surface or a segmented flat surface, and the basin wall, in addition to a smooth inner and / or outer side, can also have a surface composed of multiple flat single surfaces.
[0017] In one configuration, the bottom forms a vertex, which can be understood as the maximum distance along a vertical line from the edge of the basin to the bottom. In the case of a horizontally assembled basin edge, this vertex is the lowest point of the trough formed by the washbasin. The drain opening is positioned spaced apart from this vertex, and due to the inclination of the placement surface, the drain opening also forms the lowest point of the countertop washbasin in its assembled state. Attached Figure Description
[0018] The present invention will now be described in more detail with reference to the accompanying drawings. The same reference numerals in the drawings denote the same components. It shows:
[0019] Figure 1 A countertop washbasin in a three-dimensional view;
[0020] Figure 2 A countertop washbasin in the side view; and
[0021] Figure 3 A countertop washbasin in a bottom view. Detailed Implementation
[0022] exist Figure 1 A countertop washbasin 1 is shown from a frontal perspective in a three-dimensional view. The countertop washbasin 1 has a bottom 10 and a basin wall 20 extending from the bottom 10. The basin wall 20, together with the bottom 10, forms a trough-shaped or bowl-shaped washbasin, which has a drain opening 40 in the bottom 10, which is arranged at the lowest point in the assembled state of the washbasin. In the illustrated embodiment, the drain opening 40 is closed by a plug. The washbasin 1 is bounded upward by a basin rim 30, which is constructed in a closed manner and has a circular shape in the illustrated embodiment. The basin wall 20 is constructed in a ring-shaped curve and is conical in the illustrated embodiment, wherein the diameter of the basin wall 20 decreases from the basin rim 30 toward the bottom 10, thereby widening and opening the washbasin toward the user.
[0023] Figure 2A countertop washbasin 1 is shown in a side view. The bottom 10 is truncated spherically and therefore has a circular rim, to which the basin walls 20 are correspondingly joined. The diameter of the basin walls 20 increases toward the basin rim 30, thus creating a slightly conical shape that widens outwards and forwards toward the opening of the basin. Due to the circular rims of the bottom 10 and the basin walls 20, the countertop washbasin 1 has a central axis 2, which is also constructed as an axis of symmetry. The basin rim 30 lies in a plane 25, which is spaced apart from the actual basin rim 30 to improve visibility. The central axis 2 is perpendicular to the basin rim plane 25 and passes through the center point of the bottom 10, which forms a vertex 15. The vertex 15 is located where the distance from the bottom 10 to the perpendiculars from the basin rim plane 25 is greatest. If the basin rim plane 25 were tilted to a horizontal position, the vertex 15 would be the lowest point of the washbasin. Here, the bottom 10 does not necessarily form a mathematically perfect truncated sphere. In the illustrated embodiment, the outer contour of the bottom 10 is substantially truncated spherical, except for the placement surface 15 constructed on the bottom 10 of the countertop washbasin 1, which is constructed on an arch and surrounds the drain opening 40. The inner side of the bottom 10 of the washbasin is substantially truncated spherical except for the drain opening 40 and the drain plug disposed therein, wherein, in order to construct the drain opening 40, a recessed portion inclined toward the drain opening 40 is machined and constructed in the bottom 10. For example, if the base material of the bottom 10 is metal, the recessed portion can be introduced into the bottom 10 within the framework of a modified process. This recessed portion ensures that the drain opening 40, located centrally within the outwardly extending shoulder, is located at the geodetic lowest point of the washbasin 1 in the assembled state.
[0024] The placement surface 50 is configured such that it can be placed on a flat support plate. The support plate is generally oriented horizontally, and the placement surface 50 is in the assembled state (such as when it is in...). Figure 2 (As shown) is oriented substantially parallel to the surface of the support plate. The plane 55 passing through the placement surface 50 is not oriented parallel to the basin edge plane 25 in the assembled state of the countertop washbasin, but rather inclined to it. The angle of intersection of the two planes 25, 55 is between 5° and 25°, particularly between 10° and 20° in the case of nickel, preferably 15°. Accordingly, in the assembled state, the central axis 2 is inclined to the direction of gravity G, wherein the angle between this direction of gravity G and the central axis 2 (which is perpendicular to the basin edge plane 25) is also between 5° and 20°, particularly between 10° and 20°, preferably 15°.
[0025] The drain opening 40 and the placement surface 50 surrounding the drain opening 40 are constructed off-center on the bottom 10 and offset relative to the vertex 15. Due to the annular configuration of the placement surface 50 (as shown in the image), Figure 3As can be seen in the image, the countertop washbasin can be rotated in any orientation on the plane 55 of the placement surface 50, thereby allowing for simple and convenient adjustment of the orientation of the opening of the countertop washbasin.
[0026] exist Figure 3 The bottom side of the washbasin 1 is shown. An annular placement surface 50 is constructed flat and is concentrically arranged with a circular drain opening 40. A truncated spherical bottom 10 has a apex 15 that, in the assembled state, is not centrally located on the bottom 10 and does not constitute the geodesic lowest point of the countertop washbasin in the assembled state. If the basin wall 20 is tapered conically towards the basin edge 30, the opening of the countertop washbasin is reduced, providing improved splash protection. Due to the inclined orientation of the basin edge plane 25 relative to the placement surface 50, the water jet from the faucet can be directed tangentially towards the washbasin in the assembled state by its inclined orientation relative to the horizontal plane, further enhancing splash protection.
Claims
1. A countertop washbasin (1) comprising: a bottom (10); a basin wall (20) extending from said bottom (10), said basin wall having a basin edge (30) located in a basin edge plane (25); a drain opening (40) disposed in said bottom (10) and eccentrically disposed therein; and a placement surface (50) disposed at said bottom (10) for placing said countertop washbasin (1) on a support plate, characterized in that, The placement surface (50) is oriented at an angle relative to the basin edge plane (25).
2. The countertop washbasin (1) according to claim 1, characterized in that, The bottom (10) is truncated spherical, conical or pyramidal in shape.
3. The countertop washbasin (1) according to claim 1 or 2, characterized in that, The basin edge (30) and the basin wall (20) are arranged around the central axis (2), and the drain opening (40) is arranged offset relative to the central axis (2).
4. The countertop washbasin (1) according to claim 3, characterized in that, The central axis (2) forms an axis of symmetry.
5. The countertop washbasin according to claim 3 or 4, characterized in that, The basin wall (20) is oriented parallel to or inclined relative to the central axis (2), and is constructed in a polygonal or arc shape.
6. The countertop washbasin according to claim 1 or 2, characterized in that, The bottom (10) is constructed to be inclined or arched toward the drain opening (40).
7. The countertop washbasin according to claim 1 or 2, characterized in that, The tilt is between 5° and 25°.
8. The countertop washbasin according to claim 7, characterized in that, The tilt is between 10° and 20°.
9. The countertop washbasin according to claim 7, characterized in that, The tilt is 15°.
10. The countertop washbasin according to claim 1 or 2, characterized in that, The countertop washbasin can be made of metal, plastic, ceramic or glass.
11. The countertop washbasin according to claim 1 or 2, characterized in that, The countertop washbasin has a surface coating.
12. The countertop washbasin according to claim 1 or 2, characterized in that, The placement surface (50) is annularly constructed.
13. The countertop washbasin according to claim 1 or 2, characterized in that, The bottom (10) has a polished surface or a segmented plane.
14. The countertop washbasin according to claim 1 or 2, characterized in that, The bottom (10) forms a vertex (15), and the drain opening (40) is positioned at a distance from the vertex (15).