A self-cleaning vanity basin
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JOMOO KITCHEN & BATHROOM
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-12
AI Technical Summary
The inner surface of the water storage cavity of existing washbasins is difficult to clean, and the direct connection of the scrubbing hole to the water supply pipe presents problems such as complex manufacturing process and high risk of leakage.
Multiple scrubbing holes are set on the top of the side wall of the basin, and the spray nozzle is installed. The groove forms an installation clearance space, which facilitates the connection of the water supply pipe. The water outlet of the spray nozzle forms a swirling flow around the water storage cavity. Combined with the transition water channel and the water guide protrusion, a thorough cleaning is achieved.
It achieves comprehensive cleaning of the inner surface of the water storage cavity, reduces the risk of leakage, improves connection reliability and cleaning effect, and enhances the strength and aesthetics of the basin.
Smart Images

Figure CN224351330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathroom fixtures, and in particular to a self-cleaning washbasin. Background Technology
[0002] A washbasin, also known as a sink, is a countertop cleaning appliance used for washing hands and face. After a period of use, existing washbasins accumulate grime on the inner surface of the water reservoir, requiring regular descaling. However, water from the faucet above the basin cannot directly reach the inner surface of the reservoir, necessitating the use of a cleaning tool. To address this, some existing technologies incorporate multiple scrubbing holes on the top side wall of the basin, allowing for cleaning of the reservoir's inner surface. However, this type of countertop with cleaning function has the following drawbacks: directly connecting the scrubbing holes to the water supply requires a sealed connection, which is complex and carries a high risk of leakage. Utility Model Content
[0003] This utility model addresses the technical problems existing in the prior art by providing a self-cleaning washbasin.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a self-cleaning basin includes a basin body, which forms a water storage cavity, and the bottom of the water storage cavity is provided with a drain outlet; the top of the side wall of the basin body is provided with a plurality of washing holes distributed at intervals along its circumference, and each washing hole is connected to the water storage cavity; each washing hole is equipped with a nozzle to spray cleaning water into the water storage cavity through the nozzle; the outer side of the basin body is provided with grooves corresponding to each washing hole, which form a clearance space for the installation of the nozzle.
[0005] In a preferred embodiment, the water outlet direction of each nozzle is respectively arranged in the same direction along the circumferential direction of the water storage cavity, so that the cleaning water sprayed by each nozzle forms a swirling flow along the circumferential direction of the water storage cavity, and the swirling flow covers the inner sides of the water storage cavity.
[0006] In a preferred embodiment, the side of the groove that connects with the washing hole forms a mounting plane, which is perpendicular to the axis of the washing hole; the first end of the nozzle is used to connect to the water supply pipe, and the second end is used to spray cleaning water. The first end of the nozzle passes through the washing hole from inside the water storage cavity and is locked to the mounting plane by a nut.
[0007] In a preferred embodiment, the side of the groove adjacent to the washing hole is provided as a concave arc surface, the first end of the concave arc surface is connected to the mounting plane, and the second end of the concave arc surface is connected to the outer side of the basin.
[0008] In a preferred embodiment, the basin body is provided with a transition water channel between each of the washing holes and the inner side of the water storage cavity, which can hide the nozzle. The transition water channel extends along the water outlet direction of the nozzle, and the cleaning water sprayed from the nozzle enters the water storage cavity through the transition water channel.
[0009] In a preferred embodiment, a flange is provided on the top of the outer side of the basin, and the washing hole and groove are provided on the flange.
[0010] In a preferred embodiment, the top of the inner side of the water storage cavity is provided with water guiding protrusions between adjacent nozzles, and the water guiding protrusions extend along the circumferential direction of the water storage cavity.
[0011] In a preferred embodiment, the top of the inner side of the water storage cavity is provided with water guiding protrusions between adjacent nozzles, and the water guiding protrusions extend along the circumferential direction of the water storage cavity; the water inlet end of each water guiding protrusion is streamlinedly transitioned to the water outlet end of its upstream transition channel.
[0012] In a preferred embodiment, the width of the water-guiding protrusion gradually decreases from the water inlet end to the water outlet end.
[0013] In a preferred embodiment, the top of the inner side of the water storage cavity is provided with a water-blocking flange located above the washing hole.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This utility model installs a spray head at the wash hole, allowing for convenient connection to the water supply pipe. This avoids the problems of complex manufacturing processes and high risk of leakage associated with directly connecting the wash hole to the water supply pipe. Furthermore, this utility model features grooves on the outer side of the basin corresponding to each wash hole, providing clearance for the spray head installation. This ensures that any protruding parts or accessories of the spray head can be accommodated within the grooves, effectively reducing interference and thus lowering the risk of leakage.
[0016] 2. The water outlet direction of each nozzle is set in the same direction along the circumferential direction of the water storage cavity, so that the cleaning water sprayed from each nozzle forms a swirling flow along the circumferential direction of the water storage cavity. Therefore, this utility model utilizes the fluid swirling characteristics to achieve comprehensive cleaning of the inner sides of the water storage cavity, effectively reducing cleaning blind spots.
[0017] 3. The mounting surface provides a secure and reliable locking surface for the nut, ensuring a tight connection between the nut and the nozzle and significantly improving the overall reliability of the nozzle-nut connection. The concave arc surface provides a mating arc surface for the water supply pipe connected to the nozzle, ensuring stable fixation of the water supply pipe and smooth water supply.
[0018] 4. The present invention further provides the transition water channel, which can hide the nozzle and make the water storage cavity look simpler and more beautiful.
[0019] 5. The flange design increases the thickness of the top of the basin, which strengthens the area where the washing holes are located. This reduces the possibility of deformation of the washing holes due to uneven shrinkage during drying and firing, thus avoiding interference when installing the spray nozzles in the washing holes.
[0020] 6. The water-guiding protrusions effectively guide and distribute the water flow, ensuring that after entering the water storage cavity, the water is evenly distributed across the entire inner surface of the cavity along the shape of the protrusions, achieving a more comprehensive and uniform cleaning effect. In particular, the gradually decreasing width of the water-guiding protrusions increases the water flow speed, enhancing the flushing power and effectively reducing the water's residence time on the protrusions. This reduces the possibility of dirt accumulation and bacterial growth due to water residue, ensuring a highly efficient and hygienic cleaning process.
[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the self-cleaning basin of the present invention is not limited to the embodiments. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a utility model;
[0023] Figure 2 This is a top view of an embodiment of a utility model;
[0024] Figure 3 This is a cross-sectional view of an embodiment of a utility model. Figure 1 (Demonstrating a spray nozzle);
[0025] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;
[0026] Figure 5 This is a cross-sectional view of an embodiment of a utility model. Figure 2 ;
[0027] Figure 6 This is a three-dimensional structural schematic diagram of the present invention in Embodiment 2;
[0028] Figure 7 This is a cross-sectional view of the present invention in Embodiment 2;
[0029] In the diagram, 1. Basin; 11. Water storage cavity; 111. Drain hole; 112. Water guide boss; 113. Water-blocking flange; 114. Water guide groove; 12. Washing hole; 13. Transition water channel; 14. Groove; 141. Mounting plane; 142. Concave arc surface; 15. Step surface; 16. Flange; 2. Sprayer head; 3. Nut; 4. Sealing gasket. Detailed Implementation
[0030] In this utility model, the terms "first," "second," etc., are used only to distinguish similar objects, not to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "inner," "outer," and "top / bottom" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, and is only for the convenience of describing this utility model, not to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation on the scope of protection of this utility model. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0031] In addition, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0032] Example 1
[0033] Please see Figures 1-5 As shown, this utility model discloses a self-cleaning washbasin, including a basin body 1 with a water storage cavity 11 at its bottom and a drain outlet 111 at its bottom. The top of the side wall of the basin body 1 has multiple circumferentially spaced cleaning holes 12, each connected to the water storage cavity 11. A nozzle 2 is installed at each cleaning hole 12, spraying cleaning water into the water storage cavity 11. Therefore, this utility model allows for convenient connection of the nozzle 2 to a water supply pipe, avoiding the problems of complex manufacturing processes and high leakage risk associated with directly connecting the cleaning holes 12 to the water supply pipe. The outer surface of the basin body 1 has grooves 14 corresponding to each cleaning hole 12, providing space for the nozzle 2 to be installed.
[0034] The water outlet direction of each nozzle 2 is arranged in the same direction along the circumferential direction of the water storage cavity 11, so that the cleaning water sprayed from each nozzle 2 forms a swirling flow along the circumferential direction of the water storage cavity 11, and the swirling flow covers the inner sides of the water storage cavity 11. In this embodiment, the outline of the water storage cavity 11 is approximately elliptical, but not limited to this. In other embodiments, the outline of the water storage cavity 11 is circular or square, etc. There are four washing holes 12, but not limited to this. Of the four washing holes 12, two washing holes 12 are distributed at both ends of the major axis of the ellipse, and the other two washing holes 12 are distributed at both ends of the minor axis of the ellipse. Correspondingly, the number of nozzles 2 is also four, and only one nozzle 2 is shown in the figure.
[0035] like Figure 3 , Figure 4 As shown, the side of the groove 14 that connects to the washing hole 12 forms an mounting plane 141, which is perpendicular to the axis of the washing hole 12. The first end of the nozzle 2 is used to connect to the water supply pipe, and the second end is used to spray cleaning water. The first end of the nozzle 2 passes through the washing hole 12 from inside the water storage cavity 11 and is locked to the mounting plane 141 by a nut 4. A stepped surface 15 is formed at the end of the washing hole 12 facing the water storage cavity 1111. A sealing gasket 4 is fitted onto the second end of the nozzle 22, abutting against the stepped surface 15 to prevent leakage between the nozzle 22 and the stepped surface 15. The side of the groove 14 adjacent to the washing hole 12 is a concave arc surface 142. The first end of the concave arc surface 142 connects to the mounting plane 141, and the second end connects to the outer surface of the basin 1. The first and second ends of the concave arc surface 142 refer to the two ends of the concave arc surface 142 along its length. The concave arc surface 142 provides a support arc surface for the water supply pipe connected to the nozzle 2, ensuring stable fixation of the water supply pipe and smooth water supply.
[0036] In a preferred embodiment, the basin 1 is provided with transition channels 13 between each of the washing holes 12 and the inner surface of the water storage cavity 11, which can conceal the nozzles 2. The transition channels 13 extend along the water outlet direction of the nozzles 2, and the cleaning water sprayed from the nozzles 2 enters the water storage cavity 11 through the transition channels 13. The transition channels 13 are provided to conceal the nozzles 2, making them invisible from inside the water storage cavity 11 from the user's normal viewing angle, thereby improving the overall aesthetics. On the other hand, the transition channels 13 can guide and shape the cleaning water sprayed from the nozzles 2, so that the cleaning water accurately impacts the inner surface of the water storage cavity 11 in the form of a columnar water flow, thereby improving the cleaning effect.
[0037] In this embodiment, a flange 16 is provided on the top of the outer side of the basin 1. The washing hole 12, the groove 14, and the transition water channel 13 are all located on the flange 16. The flange 16 makes the top of the basin 1 thicker, which can strengthen the area where the washing hole 12 is located and reduce the possibility of deformation of the washing hole 12 due to uneven shrinkage during the drying and firing process of the basin 1. This avoids interference problems when the spray head 2 is installed in the washing hole 12.
[0038] In a preferred embodiment, the top of the inner side of the water storage cavity 11 is provided with water guiding protrusions 112 between adjacent nozzles 2. The water guiding protrusions 112 extend along the circumferential direction of the water storage cavity 11 and are used to effectively guide and distribute the cleaning water sprayed from the nozzles 2. The water inlet end of each water guiding protrusion 112 transitions streamlinedly with the water outlet end of its upstream transition channel 13, so that each transition channel 13 merges with its corresponding water guiding protrusion 112, thereby improving the smoothness of the cleaning water flow. Preferably, the width of the water guiding protrusion 112 gradually decreases from the water inlet end to the water outlet end. Specifically, the width of the water guiding protrusion 112 starts from its water inlet end and gradually decreases along the water flow direction until it extends to the position of the next lower brush hole.
[0039] Furthermore, the inner surface of the water storage cavity 11 is provided with a water-blocking flange 113 located above the washing hole 12. During the circumferential flow of water along the inner surface of the water storage cavity 1111, the water-blocking flange 113 can effectively block the water flow and prevent it from splashing upwards. The water-blocking flange and the aforementioned water-guiding protrusion 112 are arranged vertically opposite each other, forming a water-guiding groove 114 between them. The longitudinal cross-section of the water-guiding groove 114 is preferably C-shaped, which helps to reduce water turbulence and resistance and improve water flow efficiency.
[0040] This invention relates to a self-cleaning washbasin. During cleaning, the switch assembly on the water supply pipe is activated, directing water flow to each nozzle 2. Water jets are sprayed from the nozzles and flow along the transition channel 13, then towards the guide protrusion 112. As the water flows through the guide protrusion 112, it naturally splits into a main flow and a secondary flow: the main flow forms a high-speed swirling current around the guide protrusion 112, generating a strong shearing and scouring force; the secondary flow, guided by the guide protrusion 112, turns inward, forming a downward rinsing flow. Therefore, this invention achieves a swirling cleaning method, enabling comprehensive cleaning and coverage of the inner surface of the water storage cavity 11, greatly improving the cleaning effect of the washbasin.
[0041] This invention relates to a self-cleaning washbasin that utilizes a nozzle 2 instead of a scrubbing hole 12 to spray water. This not only allows the nozzle 2 to spray a powerful jet of water but also enables convenient connection to the water supply pipe (the nozzle 2 and the water supply pipe can be connected using methods such as socketing or threaded connection to achieve a sealed connection). This avoids the problems of complex manufacturing processes and high leakage risk associated with directly connecting the scrubbing hole 12 to the water supply pipe. Furthermore, this invention features grooves 14 on the outer side of the basin body 1 corresponding to the positions of each nozzle 2. These grooves 14 accommodate the first end of the nozzle 2 and the nut 4, effectively reducing the protrusion of the nozzle 2 and its connected nut 3 on the outside of the basin body 1, preventing interference with other components, and thus reducing the risk of leakage.
[0042] Example 2
[0043] Please participate Figure 6 , Figure 7 As shown, the self-cleaning basin of this utility model differs from the above embodiment 1 in that: the top of the inner side of the water storage cavity 11 is not provided with a water guiding protrusion 112. When cleaning, the cleaning water sprayed from each nozzle 2 flows along the transition water channel 13 and sprays towards the inner side of the water storage cavity 11. Under the guidance of the inner side of the water storage cavity 11, a swirling water flow is naturally formed to thoroughly clean the inner side of the water storage cavity 11.
[0044] The self-cleaning washbasin of this utility model is identical to or can be implemented using existing technologies for the parts not described herein.
[0045] The above embodiments are only used to further illustrate a self-cleaning basin of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.
Claims
1. A self-cleaning washbasin, comprising a basin body having a water storage cavity, the bottom of which has a drain outlet; a plurality of scrubbing holes spaced circumferentially at the top of the side wall of the basin body, each scrubbing hole communicating with the water storage cavity; characterized in that: Each washing hole is equipped with a nozzle to spray cleaning water into the water storage cavity; the outer side of the basin is provided with grooves corresponding to each washing hole, and the grooves form a clearance space for the installation of the nozzles.
2. The self-cleaning washbasin according to claim 1, characterized in that: The water outlet direction of each nozzle is set in the same direction along the circumferential direction of the water storage cavity, so that the cleaning water sprayed by each nozzle forms a swirling flow along the circumferential direction of the water storage cavity, and the swirling flow covers the inner sides of the water storage cavity.
3. The self-cleaning washbasin according to claim 2, characterized in that: The side of the groove that connects with the washing hole forms an installation plane, which is perpendicular to the axis of the washing hole; the first end of the nozzle is used to connect to the water supply pipe, and the second end is used to spray cleaning water. The first end of the nozzle passes through the washing hole from inside the water storage cavity and is locked to the installation plane by a nut.
4. The self-cleaning washbasin according to claim 3, characterized in that: The side of the groove adjacent to the washing hole is set as a concave arc surface. The first end of the concave arc surface is connected to the mounting plane, and the second end of the concave arc surface is connected to the outer side of the basin.
5. The self-cleaning washbasin according to claim 2, characterized in that: The basin body is provided with a transition water channel between each of the washing holes and the inner side of the water storage cavity, which can hide the nozzle. The transition water channel extends along the water outlet direction of the nozzle, and the cleaning water sprayed from the nozzle enters the water storage cavity through the transition water channel.
6. The self-cleaning basin according to any one of claims 1-5, characterized in that: The outer side of the basin is provided with a flange at the top, and the washing hole and groove are provided on the flange.
7. The self-cleaning washbasin according to claim 2, characterized in that: The top of the inner side of the water storage cavity is provided with water guiding protrusions between adjacent nozzles, and the water guiding protrusions extend along the circumferential direction of the water storage cavity.
8. The self-cleaning washbasin according to claim 5, characterized in that: The inner side of the water storage cavity is provided with water guiding protrusions between adjacent nozzles, and the water guiding protrusions extend along the circumferential direction of the water storage cavity; the water inlet end of each water guiding protrusion is streamlined to the water outlet end of its upstream transition channel.
9. The self-cleaning basin according to claim 7 or 8, characterized in that: The width of the water-guiding protrusion gradually decreases from the water inlet end to the water outlet end.
10. The self-cleaning washbasin according to claim 1, characterized in that: The inner side of the water storage cavity is provided with a water-blocking flange located above the washing hole.