Undercounter basin

By improving the elastic plate and seal design of the fixtures and combined with overflow holes, the problems of easy dropping of the undercounter basin and aging of the glass glue are solved, achieving a more stable and safe installation of the undercounter basin, improving service life and safety.

CN223214662UActive Publication Date: 2025-08-12DURAVIT (CHINA) SANITARYWARE CO LTD
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Patent Information

Application Number
CN202422409100.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-08-12
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

The existing undercounter basins are easily dropped due to gravity during use, which poses safety hazards. The fixing method of glass glue is prone to aging and failure, resulting in unstable connections.

Method used

Fixed parts designed with elastic plates and seals are made of spring steel material, with an arc-shaped and easy-to-beat structure to increase pressure; the seals are O-type rubber rings to form waterproof barriers; overflow holes are installed on the basin to drain water, improving stability and safety.

Benefits of technology

It enhances the installation stability and firmness of the undercounter basin, prevents glass glue from aging, reduces water stains, provides safe drainage channels, and improves overall service life and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sanitary ware, in particular to an undercounter basin which comprises a basin body fixedly connected to the bottom of a table top and a fixing piece used for connecting the basin body and the table top, a flange is fixedly arranged on the outer circle of the basin body, an inclined face is arranged at the end, away from the basin body, of the flange, and an arc-shaped notch is formed in the top of the inner wall of the basin body. A sealing piece is embedded in the notch; the fixing piece comprises a bottom plate and an elastic plate fixedly connected with the two ends of the bottom plate, a threaded hole is formed in the midpoint position of the bottom plate, the elastic plate is bent inwards from the side away from the threaded hole to the side close to the threaded hole, and a contact plane used for making contact with the top face of the flange is arranged at the end, away from the end fixedly connected with the bottom plate, of the elastic plate; according to the scheme, the stability of fixed connection between the table top and the undercounter is improved, and the safety problem caused by sudden falling of the undercounter is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of sanitary ware, in particular to an under-counter basin. Background Art

[0002] Undercounter basins, also known as recessed or sunken washbasins, are a common type of bathroom sink. Compared to traditional above-counter basins, undercounter basins typically feature a simpler, more modern design, complementing modern bathroom decor and creating a cleaner overall look. Because the undercounter basin is recessed beneath the countertop, creating a smooth surface with no abrupt edges, it creates a clean, uncluttered look. The seamless connection with the countertop also reduces blind spots, making it easier to maintain hygiene.

[0003] However, the existing process of installing an under-counter basin is to apply a layer of silicone sealant between the under-counter basin and the countertop, and then fix it to the bottom of the countertop with screws or other fixings. After a period of use, the under-counter basin is prone to fall to the ground under the action of gravity, posing a threat to the safety of users. Utility Model Content

[0004] The utility model provides an under-counter basin, which not only maintains the aesthetics and practicality of the under-counter basin, but also improves its stability after installation, thereby avoiding safety problems caused by the under-counter basin suddenly falling.

[0005] This application provides the following technical solutions:

[0006] An under-counter basin comprises a basin body fixedly connected to the bottom of a countertop, a fixing part for connecting the basin body and the countertop, a flange fixedly arranged on the outer circle of the basin body, an inclined surface arranged on the end of the flange away from the basin body, an arc-shaped notch arranged at the top position of the inner wall of the basin body, and a sealing part embedded in the notch; the fixing part comprises a bottom plate and an elastic plate fixedly connected to both ends of the bottom plate, a threaded hole is provided at the midpoint of the bottom plate, the elastic plate is bent inwardly from the side away from the threaded hole to the side close to the threaded hole, and a contact plane for contacting the top surface of the flange is provided on the end of the elastic plate away from the fixed connection with the bottom plate.

[0007] Beneficial effects:

[0008] 1. It helps to enhance the stability and firmness of the under-counter basin after installation: the elastic plate of the fixing is bent inward from the side away from the threaded hole to the side close to the threaded hole, forming an arc-shaped, easily bendable structure. This design further reduces the contact area between the fixing and the countertop compared to the flat contact structure, thereby increasing the pressure per unit area. Higher pressure means stronger fastening effect, ensuring that the under-counter basin will not loosen or fall off during use, thereby improving the overall stability and firmness. A contact plane is set on the end of the elastic plate away from the fixed connection with the base plate, and this plane contacts the top surface of the flange. The design of the contact plane effectively protects the surface of the basin by dispersing the pressure, avoiding damage to the basin surface caused by excessive concentrated pressure. This design not only improves the fastening effect of the fixing, but also extends the service life of the basin.

[0009] 2. By forming an effective waterproof barrier, it helps prevent the failure of the glass glue: First, the sealant is placed tightly against the connection between the basin and the countertop, forming an effective waterproof barrier. This sealing design effectively prevents water from penetrating through the inner wall of the countertop and penetrating the connection between the basin and the countertop, preventing long-term water erosion of the glass glue used to connect the basin and the countertop. Glass glue is prone to aging and deterioration in humid environments, resulting in a decrease in the fixing effect or even failure. The addition of the sealant ensures the long-term stability and reliability of the connection between the basin and the countertop.

[0010] Further, as an improvement, the elastic plate is made of spring steel material.

[0011] Benefits: First, spring steel possesses excellent elastic properties. After undergoing a special heat treatment process, it possesses a high elastic modulus and fatigue resistance. This material allows the elastic plate to quickly deform when squeezed by the bottom of the countertop, further pressing and securing the flange. Second, spring steel is extremely durable, with excellent fatigue and corrosion resistance, allowing it to withstand long-term use in harsh environments without damage.

[0012] Furthermore, as an improvement, the sealing member is an O-type rubber ring.

[0013] Benefits: First, the O-ring offers excellent sealing properties, boasting excellent elasticity, ageing resistance, and corrosion resistance. It fits snugly at the joint between the basin and countertop, creating an effective waterproof barrier. Second, the O-ring is easy to install and maintain. Its standardized design makes installation quick and simple, requiring no complex tools or techniques. During daily use, if replacement or maintenance is necessary, it can be simply disassembled without damaging the countertop or basin, enhancing ease of maintenance.

[0014] Furthermore, as an improvement, an overflow hole is provided on the basin body, which passes through the basin body transversely.

[0015] Beneficial Effects: This design significantly improves the safety and functionality of under-counter basins. Specifically, the overflow hole provides a safe drainage channel. When the water level in the basin reaches a certain level, excess water flows back into the sewer pipe through the overflow hole, preventing overflow caused by excessive water levels. This design not only protects the countertop and surrounding environment from water stains, but also reduces the risk of slips caused by overflow, improving user safety when using the under-counter basin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of the first embodiment of the under-counter basin of the present utility model;

[0017] Figure 2 for Figure 1 AA section view;

[0018] Figure 3 for Figure 2 Enlarged view of point B;

[0019] Figure 4 for Figure 2 Enlarged view of point C;

[0020] Figure 5 for Figure 3 Right side view of the middle fixing;

[0021] Figure 6 for Figure 5 Axonometric view of the fixing in the figure. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The symbols in the drawings of the specification include: basin body 1, flange 11, inclined surface 12, rubber ring 13, overflow hole 14, leakage hole 15, table top 2, fixing part 3, bottom plate 31, elastic plate 32, fixing hole 33, screw 34, contact plane 35.

[0024] Example 1

[0025] Combine Figures 1-6 As shown, the under-counter basin includes a basin body 1 fixedly connected to the bottom of the countertop 2, a fixing part 3 for connecting the basin body 1 and the countertop 2, a layer of glass glue is applied between the countertop 2 and the basin body 1, and the basin mouth size of the basin body 1 is larger than the basin mouth size of the countertop 2, so that the basin mouth of the basin body 1 is expanded outward as a whole compared with the basin mouth of the countertop 2. When there is water accumulated on the countertop 2, when the user cleans the accumulated water into the basin body 1, most of the water flow will directly fall into the bottom of the basin body 1, and only a small amount of water droplets will flow along the bottom of the countertop 2 and there is a risk of eroding the glass glue.

[0026] like Figure 3 As shown, a flange 11 integrally formed with the basin body 1 is fixedly provided on the outer circle of the basin body 1, and a slope 12 is provided on the end of the flange 11 away from the basin body 1. The purpose of providing the slope 12 is to facilitate the flange 11 to be smoothly inserted into the fixing member 3, as shown in FIG. Figure 4 As shown, an arc-shaped notch is provided at the top position of the inner wall of the basin body 1, an O-type rubber ring 13 is embedded in the notch, an overflow hole 14 is provided on the side wall of the basin body 1 and passes through the basin body 1 horizontally, and a leakage hole 15 is provided on the bottom of the basin body 1 and passes through the basin body 1 vertically. Both the overflow hole 14 and the leakage hole 15 are connected to the sewer pipe.

[0027] Combine Figure 3 、 Figure 5 、 Figure 6 As shown, in this embodiment, four sets of fixing members 3 are arranged at equal intervals around the basin body 1. These fixing members 3 comprise a base plate 31 and elastic plates 32 welded to both ends of the base plate 31. A threaded fixing hole 33 is defined at the midpoint of the base plate 31, and is secured with a screw 34. The elastic plates 32 are made of spring steel and bend inward from the side away from the threaded hole toward the side closer to the threaded hole. A contact surface 35 is provided on the end of the elastic plate 32, away from the fixed connection to the base plate 31, for contacting the top surface of the flange 11.

[0028] The specific process of installing an undercounter basin includes the following steps:

[0029] Step 1: Preparation:

[0030] 1. Ensure that the table surface 2 is flat, clean and free of debris;

[0031] 2. Check the integrity of the basin 1, fixings 3, O-rings and drainage system.

[0032] Step 2: Install two adjacent fixings 3:

[0033] 1. Place two adjacent fixing parts 3 under the table top 2 and clearly locate their positions. Then align the screws 34 with the threaded holes at the bottom of the table top 2 and insert and fix them. Note that the screws 34 must not be fully tightened at this time, that is, the elastic plate 32 must not be significantly deformed, otherwise it will hinder the subsequent installation of the basin body 1.

[0034] Step 3: Install the basin 1 and the remaining two fixings 3:

[0035] 1. First, apply a layer of glass glue on the top of the basin 1 or the bottom of the table 2, align the flange 11 of the basin 1 with the installed fixing parts 3, and ensure that the table 2 fits tightly with the basin 1;

[0036] 2. Align the remaining two fixing pieces 3 opposite to the two installed fixing pieces 3 with the threaded holes under the table top 2 and install them in place and tighten the screws 34;

[0037] 3. Insert the O-ring into the notch of the basin body 1. After confirming the final position, tighten all screws 34 to ensure that the basin body 1 is stable.

[0038] Step 4: Connect the drainage system and do a final check:

[0039] 1. Connect the sewer pipe, overflow hole and leakage hole 15. After the glass glue solidifies, drain water to check the sealing between the basin body 1 and the table 2 to ensure there is no leakage. Check the working condition of the drainage system to ensure smooth drainage.

[0040] It is worth mentioning that during the installation of the basin body 1 in step 3, when the installer tightens the screws 34 to press the bottom upward, the elastic plate 32 is squeezed and deformed by the bottom of the countertop 2, causing the contact surface 35 at the end of the elastic plate 32 to further squeeze the flange 11, further enhancing the overall installation stability and firmness of the basin body 1. At the same time, it will not cause damage to the surface of the under-counter basin, thereby affecting the overall aesthetics. By optimizing the structural design of the fixing member 3 and providing a seal, this solution not only significantly enhances the stability and firmness of the under-counter basin after installation, but also ensures the long-term stability and reliability of the connection between the basin body 1 and the countertop 2. This has significant practical value in actual applications and improves the overall performance and user experience of the under-counter basin.

[0041] The above is only an embodiment of the present invention. The present invention is not limited to the field involved in this implementation case. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An under-counter basin, comprising a basin body fixedly connected to the bottom of a countertop, and a fixing member for connecting the basin body and the countertop, characterized in that: A flange is fixedly provided on the outer circle of the basin body, and an inclined surface is provided on the end of the flange away from the basin body. The basin opening of the basin body is larger than the basin opening of the table top. An arc-shaped notch is provided at the top position of the inner wall of the basin body, and a sealing member is embedded in the notch. The fixing member includes a base plate and an elastic plate fixedly connected to both ends of the base plate. A threaded hole is provided at the midpoint of the base plate. The elastic plate bends inward from the side away from the threaded hole to the side close to the threaded hole. A contact plane for contacting the top surface of the flange is provided on the end of the elastic plate away from the end fixedly connected to the base plate.

2. The under-counter basin according to claim 1, characterized in that: The elastic plate is made of spring steel material.

3. The under-counter basin according to claim 2, characterized in that: The sealing member is an O-type rubber ring.

4. The under-counter basin according to claim 3, characterized in that: An overflow hole is provided on the basin body and passes through the basin body transversely.