Lightweight washbasin structure based on BMC molding

Abstract

The application relates to a BMC-molded light-weighted hand-washing basin structure, and relates to the technical field of bathroom equipment. The application comprises a hand-washing basin body, a drainage port, a drainage insert, a connecting structure and a reinforcing structure. The hand-washing basin body of the BMC-molded light-weighted hand-washing basin structure is mainly used for containing and discharging water, and realizes waste water discharge through the drainage port in the middle of the lower end face; the drainage insert is arranged in the drainage port, improves the sealing performance and sewage discharge effect of the drainage port, and prevents blockage; the connecting structure plays a role in fixing the drainage insert, and ensures the stability and sealing performance of the drainage insert; and the reinforcing structure enhances the strength of the bottom of the hand-washing basin body, and reduces the risk of breakage caused by frequent use.

Description

Technical Field

[0001] This application relates to the field of bathroom equipment technology, and in particular to a lightweight hand basin structure based on BMC molding. Background Technology

[0002] With the increasing diversification of dishwasher products today, the choice of materials for washbasins has also become more diverse. Common materials include ceramics, enamel cast iron, enamel steel plates, and terrazzo. With the advancement of building materials technology, new materials such as fiberglass, artificial marble, artificial agate, and stainless steel are also gradually being applied to washbasin manufacturing. Although these materials each have their advantages, the common requirements for washbasins are a smooth surface, impermeability, corrosion resistance, resistance to hot and cold temperatures, ease of cleaning, and durability. Traditional ceramic washbasins, while aesthetically pleasing and durable, are generally heavy, often reaching 15 kg, and their poor impact resistance and high energy consumption are significant drawbacks. In contrast, plastic washbasins are lighter, but their heat resistance is insufficient, making them prone to deformation at high temperatures, and their lower surface hardness also limits the user experience. As a result, a high-strength, corrosion-resistant BMC (reinforced thermosetting plastic) material has emerged on the market. However, when applied to washbasins, it has also encountered problems in weight control and complex structural molding. Firstly, while BMC material is favored for its high strength and corrosion resistance, its density, typically between 1.8 and 2.0 g / cm³, results in a relatively heavy finished washbasin, making it difficult to meet the demands of lightweight design. Furthermore, BMC material is challenging to handle complex curved surfaces during molding, particularly when molding the washbasin body and drain into a single unit; common technical difficulties include air bubble formation and uneven fiber distribution. Utility Model Content

[0003] In order to address the issue that existing lightweight washbasin structures based on BMC molding suffer from bulkiness, uneven distribution of air bubbles and fibers due to their inherent design characteristics, the inventors have found that existing BMC material washbasins have problems such as bulk weight and uneven distribution of air bubbles and fibers during actual use. This application provides a lightweight washbasin structure based on BMC molding.

[0004] The lightweight washbasin structure based on BMC molding provided in this application adopts the following technical solution: it includes a washbasin body, a drain outlet located at the middle of the lower end face of the washbasin body, a drain insert located at the drain outlet, a connecting structure located between the drain insert and the drain outlet, and a reinforcing structure located on the lower end face of the washbasin body.

[0005] By adopting the above technical solution, the washbasin body is mainly used for receiving and discharging water, and wastewater is discharged through the drain outlet in the middle of its lower end face; the drain insert is set inside the drain outlet, which improves the sealing and sewage discharge effect of the drain outlet and prevents blockage; the connecting structure plays the role of fixing the drain insert, ensuring its stability and sealing; the reinforcing structure enhances the strength of the bottom of the washbasin body and reduces the risk of breakage caused by frequent use.

[0006] As a preferred embodiment, the surface of the washbasin body is provided with a resin-rich layer of 0.1 to 0.3 mm thickness, the glass fiber content of which is ≤5%.

[0007] By adopting the above technical solution, the resin-rich layer on the surface of the washbasin body has a thickness of 0.1 to 0.3 mm, and its main function is to increase the surface's corrosion resistance and wear resistance. The glass fiber content of ≤5% further enhances the mechanical properties of the resin-rich layer, improving its fracture resistance and toughness, effectively improving the surface quality of the washbasin and extending its service life.

[0008] As a preferred embodiment, the wall thickness of the washbasin body varies in a gradient, with the bottom thickness of the washbasin body being 4mm to 4.5mm, the side wall thickness being 3mm to 3.5mm, and the edge thickness being 2.5mm to 2.8mm.

[0009] By adopting the above technical solution, the wall thickness of the washbasin body varies in a gradient. Specifically, the thickness design of different areas enhances the structural strength and durability of the washbasin. The bottom of the basin adopts a thinner design, with a thickness of 4mm to 4.5mm, ensuring the lightweight nature of the washbasin body while maintaining necessary structural strength. The side wall thickness is 3mm to 3.5mm, providing good support and ensuring the overall stability of the washbasin. The edge area adopts an even thinner design, with a thickness controlled at 2.5mm to 2.8mm, which not only reduces the weight of the washbasin but also facilitates cleaning and use.

[0010] As a preferred embodiment, the drain outlet is a molded conical boss with a taper angle of 25°-35°.

[0011] By adopting the above technical solution, this design of the drain outlet can effectively improve drainage efficiency and reduce water accumulation time. The molding process of the conical boss makes its surface smoother, reducing water flow resistance and allowing water to flow smoothly. The specific range of the taper angle helps to generate a certain water pressure, accelerating the water flow speed, while avoiding increased water flow resistance due to an overly steep taper or poor drainage due to an overly flat taper. When water flows through this conical drain outlet, the water flow direction gradually converges, generating a certain hydraulic effect and further enhancing drainage efficiency.

[0012] As a preferred embodiment, the connection structure includes a limiting groove disposed on the outer periphery of the upper end face of the drain outlet and a limiting retaining ring disposed on the outer periphery of the upper end face of the drain insert. The limiting groove is concave, and the outer periphery of the limiting retaining ring is tangent to the inner wall of the limiting groove. The drain insert is connected to the drain outlet by a threaded structure, and the inner diameter of the drain insert and the drain outlet have the same curvature.

[0013] By adopting the above technical solution, the limiting groove is set on the outer periphery of the upper end face of the drain outlet. Its function is to provide accurate positioning during the assembly of the drain insert, prevent the drain insert from shifting during installation, and ensure a stable connection. The limiting retaining ring is located on the outer periphery of the upper end face of the drain insert. It cooperates with the limiting groove to further enhance the reliability of the connection and prevent the drain insert from loosening or falling off. The drain insert is connected to the drain outlet through a threaded structure. The threaded connection allows the two to be tightly joined under the action of rotational force, forming a stable and reliable sealing connection.

[0014] As a preferred embodiment, the reinforcing structure includes radial reinforcing ribs disposed on the lower end face of the washbasin body, each reinforcing rib having a height of 2-3 mm, a width of 3-5 mm, and an included angle of 15°-30° between adjacent reinforcing ribs.

[0015] By adopting the above technical solution and setting radial reinforcing ribs on the lower end face of the washbasin body, the structural strength of the washbasin during use is improved. Each reinforcing rib is 2-3mm high and 3-5mm wide. This design ensures that the reinforcing ribs increase structural strength without significantly increasing the weight of the washbasin. The included angle between adjacent reinforcing ribs is 15°-30°, which helps to disperse and resist external pressure, thereby enhancing the overall load-bearing capacity of the washbasin. These reinforcing ribs work together to enhance the stability of the bottom of the washbasin, making it more durable and less prone to deformation during use.

[0016] In summary, this application includes the following beneficial technical effects: 1. The main body of the washbasin is used to hold and drain water, and wastewater is discharged through the drain outlet in the middle of its lower end face; 2. The drainage insert is installed inside the drain outlet, which improves the sealing and sewage discharge effect of the drain outlet and prevents blockage; 3. The connecting structure serves to fix the drainage insert, ensuring its stability and sealing. 4. The reinforced structure enhances the strength of the bottom of the washbasin body, reducing the risk of breakage due to frequent use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a lightweight hand basin based on BMC molding according to this application; Figure 2 This application relates to a lightweight washbasin structure based on BMC molding. Figure 1 Another structural diagram from a different perspective; Figure 3 This is a partial cross-sectional view of the overall structure of a lightweight hand basin based on BMC molding, as described in this application. Figure 4 This is a structural schematic diagram of the positional relationship between the drain outlet and the drain insert in a lightweight hand basin structure based on BMC molding according to this application. Figure 5 This application relates to a lightweight washbasin structure based on BMC molding. Figure 4 A structural schematic diagram of the enlarged view at point A; Explanation of reference numerals in the attached drawings: 1. Washbasin body; 2. Drain outlet; 21. Limiting groove; 3. Drain insert; 31. Limiting retaining ring; 4. Reinforcing rib. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings.

[0019] Please refer to details. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This application discloses a lightweight washbasin structure based on BMC molding. It includes a washbasin body 1, a drain outlet 2 located at the center of the lower end face of the washbasin body 1, a drain insert 3 located at the drain outlet 2, a connecting structure between the drain insert 3 and the drain outlet 2, and a reinforcing structure located on the lower end face of the washbasin body 1. The washbasin body 1 is mainly used for receiving and discharging water, with wastewater discharged through the drain outlet 2 at the center of its lower end face. The drain insert 3 is located inside the drain outlet 2, improving the sealing and drainage effect of the drain outlet 2 and preventing blockage. The connecting structure fixes the drain insert 3, ensuring its stability and sealing. The reinforcing structure strengthens the bottom of the washbasin body 1, reducing the risk of breakage due to frequent use.

[0020] Please refer to details. Figure 1 and Figure 3 The washbasin body 1 is integrally molded from BMC composite material containing hollow glass microspheres. The washbasin body manufactured by integral molding process of composite material significantly reduces the weight of the washbasin body 1 while maintaining excellent mechanical and thermal properties, making it suitable for occasions that require lightweight materials.

[0021] Please refer to details. Figure 3 , Figure 4 and Figure 5 The washbasin body 1 has a 0.1-0.3mm thick resin-rich layer on its surface, with a glass fiber content of ≤5%. This 0.1-0.3mm thick resin-rich layer primarily increases the surface's corrosion resistance and abrasion resistance. The ≤5% glass fiber content further enhances the mechanical properties of the resin-rich layer, improving its fracture resistance and toughness, effectively improving the surface quality of the washbasin and extending its service life. In terms of working principle, the resin-rich layer, through its tight bond with the underlying material, provides a protective film, preventing damage to its internal structure from external chemicals and physical forces. Simultaneously, the addition of glass fiber makes it more stable under various usage conditions, making the washbasin more durable and aesthetically pleasing overall.

[0022] Please refer to details. Figure 3 The wall thickness of the washbasin body 1 varies in a gradient manner. The bottom thickness is 4mm–4.5mm, the side wall thickness is 3mm–3.5mm, and the edge thickness is 2.5mm–2.8mm. This gradient wall thickness, achieved through different thickness designs in different areas, enhances the structural strength and durability of the washbasin. The thinner bottom design (4mm–4.5mm) ensures the lightweight nature of the washbasin body 1 while maintaining necessary structural strength. The 3mm–3.5mm side wall thickness provides good support, ensuring the overall stability of the washbasin. The even thinner edge design (2.5–2.8mm) not only reduces the weight of the washbasin but also facilitates cleaning and use.

[0023] Please refer to details. Figure 4 and Figure 5 Drainage outlet 2 is a molded conical boss with a taper angle of 25°-35°. This design effectively improves drainage efficiency and reduces water accumulation time. The molding process of the conical boss makes its surface smoother, reducing water flow resistance and allowing water to flow smoothly. The specific range of the taper angle helps to create a certain water pressure, accelerating the water flow speed, while avoiding increased water flow resistance due to an overly steep taper or poor drainage due to an overly flat taper. When water flows through this conical drainage outlet 2, the water flow direction gradually converges, producing a certain hydraulic effect and further enhancing drainage efficiency.

[0024] Please refer to details. Figure 5The connection structure includes a limiting groove 21 on the outer periphery of the upper end face of the drain outlet 2 and a limiting retaining ring 31 on the outer periphery of the upper end face of the drain insert 3. The drain insert 3 is connected to the drain outlet 2 via a threaded structure, and the inner diameters of the drain insert 3 and the drain outlet 2 have the same curvature. The limiting groove 21, located on the outer periphery of the upper end face of the drain outlet 2, provides accurate positioning during the assembly of the drain insert 3, preventing misalignment during installation and ensuring a stable connection. The limiting retaining ring 31 is located on the outer periphery of the upper end face of the drain insert 3. It cooperates with the limiting groove 21 to further enhance the reliability of the connection and prevent the drain insert 3 from loosening or falling off. The limiting groove 21 is concave, and the outer periphery of the limiting retaining ring 31 is tangential to the inner wall of the limiting groove 21. The drain insert 3 is connected to the drain outlet 2 via a threaded structure. The threaded connection allows the two to be tightly joined under the action of rotational force, forming a stable and reliable sealed connection. The working principle is as follows: First, the external thread of the drainage insert 3 and the threaded hole in the drainage outlet 2 are connected to each other. The rotational force makes the threaded structures of the two interlock and form a tight connection. Then, the cooperation between the limiting groove 21 and the limiting retaining ring 31 ensures the precise installation and positioning of the entire connection structure, improves the stability and reliability of the connection, and avoids the loosening problem caused by uneven torque, thereby ensuring the smooth drainage process and sealing effect.

[0025] Please refer to details. Figure 1 and Figure 2 The reinforcing structure includes radial reinforcing ribs 4 arranged on the lower end face of the washbasin body 1. Each reinforcing rib 4 is 2-3 mm high and 3-5 mm wide, with an included angle of 15°-30° between adjacent reinforcing ribs 4. By setting radial reinforcing ribs 4 on the lower end face of the washbasin body 1, the structural strength of the washbasin during use is improved. The 2-3 mm height and 3-5 mm width of each reinforcing rib 4 design ensures that the reinforcing ribs increase structural strength without significantly increasing the weight of the washbasin. The 15°-30° included angle between adjacent reinforcing ribs 4 helps to disperse and resist external pressure, thereby enhancing the overall load-bearing capacity of the washbasin. These reinforcing ribs 4 work together to enhance the stability of the bottom of the washbasin, making the washbasin more durable and less prone to deformation during use.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lightweight washbasin structure based on BMC molding, characterized in that: It includes a washbasin body (1), a drain outlet (2) located at the middle of the lower end face of the washbasin body (1), a drain insert (3) located at the drain outlet (2), a connection structure between the drain insert (3) and the drain outlet (2), and a reinforcing structure located at the lower end face of the washbasin body (1).

2. The lightweight washbasin structure based on BMC molding according to claim 1, characterized in that: The drain outlet (2) is a molded conical boss, and the taper angle of the drain outlet (2) is 25°-35°.

3. The lightweight washbasin structure based on BMC molding according to claim 2, characterized in that: The connection structure includes a limiting groove (21) disposed on the outer periphery of the upper end face of the drain outlet (2) and a limiting retaining ring (31) disposed on the outer periphery of the upper end face of the drain insert (3).

4. The lightweight washbasin structure based on BMC molding according to claim 3, characterized in that: The drainage insert (3) is connected to the drainage outlet (2) by a threaded structure, and the drainage insert and the inner diameter of the drainage outlet are set with the same curvature.

5. A lightweight washbasin structure based on BMC molding according to claim 4, characterized in that: The limiting groove is designed to be concave, and the outer periphery of the limiting retaining ring is tangent to the inner wall of the limiting groove.

6. A lightweight washbasin structure based on BMC molding according to claim 5, characterized in that: The reinforcing structure includes radial reinforcing ribs (4) disposed on the lower end face of the washbasin body (1), each reinforcing rib (4) having a height of 2-3 mm.

7. A lightweight washbasin structure based on BMC molding according to claim 6, characterized in that: Each of the reinforcing ribs (4) is 3-5 mm wide, and the included angle between adjacent reinforcing ribs (4) is 15°-30°.

8. A lightweight washbasin structure based on BMC molding according to claim 7, characterized in that: The washbasin body (1) is integrally molded from BMC composite material containing hollow glass microspheres.

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