Scratch-resistant antibacterial water tank

Abstract

The utility model discloses a scratch-resistant antibacterial water tank which comprises a water tank base body and a water outlet, and the water outlet is arranged at the bottom of the water tank base body. The inner surface of the water tank base body and the inner wall of the water outlet are coated with metal oxide layers, and the metal oxide layers are coated with low-temperature glaze layers. The low-temperature glaze layer is coated on the surface of the water tank base body, so that oil stains on the inner surface of the water tank base body are easy to scrub and remove; meanwhile, the bonding strength of the water tank base body and the low-temperature glaze layer is guaranteed through the thermally sprayed metal oxide layer, the water tank base body is not prone to falling off, and the service life is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of bathrooms, and more specifically, to a scratch-resistant and antibacterial sink. Background Art

[0002] As a bathroom hardware product, household sinks are composed of a tank body, a drain mechanism and a fastening device. They have the functions of holding water, washing items and draining water. They are essential for home decoration. There are four main surface treatment methods for stainless steel sinks on the market, namely brushed surface, frosted surface, embossed surface and mirror surface. However, no matter which treatment process is used, there is a disadvantage that oil stains are easily adhered to the surface and the oil stains are difficult to clean. In addition, the bottom of the sink is prone to breeding bacteria due to food residues that are not cleaned up, which obviously affects the health of the kitchen and bathroom space; in addition, stainless steel sinks often come into contact with different tableware, pots and knives during use, causing obvious scratches on the surface of the sink, which greatly affects the user experience of the sink.

[0003] At present, the main method on the market is to spray a layer of hydrophobic or hydrophilic coating on the inner surface of the stainless steel sink base, and the coating is used to make the oil stains easy to clean. Chinese patent CN201720420145.6 discloses a sink sprayed with an easy-to-clean coating layer, in which a hydrophilic and lipophilic nano coating is sprayed on the inner wall layer and the bottom of the sink, with a water contact angle of no more than 25° and a vegetable oil contact angle of no more than 40°, so that the oil stains on the surface of the sink can be easily removed without using a detergent. The main problem is that the hydrophilic nano coating is easy to scale the bottom of the sink under poor water quality conditions in the north, affecting the appearance. Chinese patent CN201820917918.6 discloses a stainless steel sink with a nano coating, which consists of a sink body, a PVD coating and a nano coating, characterized in that: the PVD coating is evenly coated on the surface of the sink body to form a hard protective film on the surface of the sink body, and the nano coating is evenly coated on the surface of the PVD coating. The nano coating is a fluoropolymer coating with a C4 structure. The main problem is that the PVD coating is easy to fall off, resulting in local color difference, and the fluoropolymer coating on the surface has a low hardness and is not resistant to scratches by tableware and knives, and the coating has a short service life. At the same time, none of the above patents have relevant solutions to meet the antibacterial needs of the sink surface. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology and provide a scratch-resistant and antibacterial water tank, which has a simple structure, reasonable design and is easy to implement; the utility model coats a low-temperature glaze layer on the inner surface of the water tank, so that the oil stains on the inner surface of the water tank base can be easily cleaned; at the same time, the metal oxide layer is used to ensure the bonding strength between the water tank base and the low-temperature glaze layer, which is not easy to fall off and ensures the service life;

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a scratch-resistant and antibacterial water tank, which comprises a water tank base and a water outlet, wherein the water outlet is arranged at the bottom of the water tank base; the inner surface of the water tank base and the inner wall of the water outlet are coated with a metal oxide layer, and the metal oxide layer is coated with a low-temperature glaze layer.

[0007] In an exemplary embodiment, the water tank base is a water tank base made of stainless steel, enameled steel or cast iron.

[0008] In an exemplary embodiment, the inner surface of the water tank base is a brushed surface or a frosted surface, which is bonded to the metal oxide layer.

[0009] In an exemplary embodiment, a guide groove is further provided on the bottom surface of the sink base, and the guide groove has an inclined surface inclined along the drain outlet, so that the water flow in the sink base can smoothly enter the drain outlet along the inclined surface; optionally, 4 guide grooves are provided on the bottom surface of the sink base, and the guide grooves are located between the four corners of the sink base and the drain outlet; optionally, the inclination angle of the inclined surface is 5°-10°.

[0010] In an exemplary embodiment, in the metal oxide layer, the metal oxide is at least one of titanium oxide, aluminum oxide, chromium oxide and zirconium oxide.

[0011] In an exemplary embodiment, the thickness of the metal oxide layer is 50-150 μm.

[0012] In an exemplary embodiment, the metal oxide layer is prepared by a plasma thermal spraying process, wherein the thermal spraying temperature is 1500-2000°C.

[0013] In an exemplary embodiment, the material of the low-temperature glaze layer includes quartz, feldspar, sodium aluminosilicate, and calcium carbonate; optionally, the material of the low-temperature glaze layer also includes one or more of aluminum oxide, titanium dioxide, zirconium dioxide, antimony oxide, nano zinc oxide, and rare earth cerium oxide.

[0014] In an exemplary embodiment, the low-temperature glaze layer has a thickness of 5-50 μm.

[0015] In an exemplary embodiment, the low-temperature glaze layer is prepared by spraying and sintering process, wherein the sintering temperature is 750-850°C and the sintering time is 5-20 minutes.

[0016] In an exemplary embodiment, the scratch-resistant and antibacterial sink further includes an overflow hole, and the overflow hole is disposed on any side wall of the sink base.

[0017] In an exemplary embodiment, the scratch-resistant and antibacterial sink further includes a platform portion, which protrudes outwardly along the circumference of the upper edge of the sink base; the platform portion may be provided with a faucet mounting hole, and the installation position of the faucet mounting hole may be set as needed.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] (1) The utility model provides a scratch-resistant and antibacterial water tank, which has a simple structure, reasonable design and is easy to implement; a low-temperature glaze layer is coated on the surface of the water tank, so that the oil stains on the inner surface of the water tank base can be easily wiped clean; at the same time, the metal oxide layer is used to ensure the bonding strength between the water tank base and the low-temperature glaze layer. The metal oxide layer ensures the adhesion of the low-temperature glaze layer to the water tank base, which can eliminate the peeling and falling risks of the low-temperature glaze layer and improve the impact resistance of the glaze layer;

[0020] (2) The surface of the water tank of the utility model is set to a brushed or frosted rough surface, which can make the metal oxide layer more firmly bonded to the surface of the water tank body and not easy to fall off, thereby improving the stability of the product;

[0021] (3) The utility model is provided with a metal oxide layer. On the one hand, the rough surface produced by thermal spraying can improve the adhesion of the low-temperature glaze layer and improve the impact resistance; at the same time, the metal oxide layer can reduce the risk of glaze layer shedding and cracking caused by the difference in thermal expansion coefficient between the sink base material and the low-temperature glaze layer;

[0022] (4) The utility model adds titanium dioxide, nano zinc oxide or rare earth cerium oxide to the low-temperature glaze layer, and the antibacterial rate against Escherichia coli and Staphylococcus aureus exceeds 99%.

[0023] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0025] Figure 1 This is a front view of the water tank described in the utility model;

[0026] Figure 2 It is a top view of the water tank of the utility model;

[0027] Figure 3It is a cross-sectional view of the CC surface of the water tank described in the present invention.

[0028] Description of reference numerals:

[0029] 1-sink base; 2-metal oxide layer; 3-low-temperature glaze layer; 4-drain outlet; 5-guide groove; 6-faucet installation hole; 7-overflow hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0031] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0032] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0033] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0034] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0035] Example 1.

[0036] See also Figure 1 , Figure 2 and Figure 3A scratch-resistant and antibacterial sink comprises a sink base 1 and a drain 4, wherein the drain 4 is arranged at the bottom of the sink base 1; wherein the inner surface of the sink base 1 and the inner wall of the drain 4 are coated with a metal oxide layer 2, and the metal oxide layer 2 is also covered with a low-temperature glaze layer 3.

[0037] The water tank base 1 is made of stainless steel, enameled steel or cast iron, and the inner surface of the water tank base 1 is a brushed or frosted rough surface, which is bonded to the metal oxide layer 2 .

[0038] like Figure 2 As shown, the bottom surface of the water tank base 1 is also provided with four guide grooves 5, and the guide grooves 5 have an inclined surface inclined along the water outlet, so that the water flow in the water tank base 1 can smoothly enter the water outlet along the inclined surface of the guide grooves 5; in this embodiment, the guide grooves 5 are located between the four corners of the water tank base 1 and the water outlet 4, and the inclination angle of the inclined surface can be 5°-10°

[0039] like Figure 3 As shown, in the metal oxide layer 2, the metal oxide is at least one of titanium oxide, aluminum oxide, chromium oxide and zirconium oxide; in this embodiment, the composition of the metal oxide in the metal oxide layer 2 may be, by weight, 50%wt titanium oxide and 50wt% aluminum oxide. The thickness of the metal oxide layer 2 is 50-150μm, and in this embodiment, the thickness of the metal oxide layer 2 is 100μm.

[0040] like Figure 3 As shown, the material of the low-temperature glaze layer 3 includes quartz, feldspar, sodium aluminosilicate, and calcium carbonate; optionally, the material of the low-temperature glaze layer also includes one or more of alumina, titanium dioxide, zirconium dioxide, antimony oxide, nano zinc oxide, and rare earth cerium oxide. In this embodiment, the material of the low-temperature glaze layer 3 includes, by weight: 30-40 parts of quartz, 10-20 parts of feldspar, 5-15 parts of sodium aluminosilicate, 15-25 parts of calcium carbonate, 5-10 parts of titanium dioxide, 1-3 parts of zirconium dioxide, 5-10 parts of nano zinc oxide, and 1-3 parts of rare earth cerium oxide. The thickness of the low-temperature glaze layer 3 is 5-50μm; in this embodiment, the thickness of the low-temperature glaze layer 3 is 30μm.

[0041] like Figure 1 As shown, the scratch-resistant and antibacterial water tank further includes an overflow hole 7 , and the overflow hole 7 is arranged on any side wall of the water tank base 1 .

[0042] like Figure 2As shown, the scratch-resistant and antibacterial sink also includes a platform portion, which is circumferentially protruding outward along the upper edge of the sink base; the platform portion can be provided with a faucet mounting hole 6, and the installation position of the faucet mounting hole 6 can be set as needed.

[0043] The preparation process of the scratch-resistant and antibacterial water tank includes: processing and forming, sandblasting, thermal spraying of a metal oxide layer, spraying of a low-temperature glaze layer, and firing and forming.

[0044] The processing and forming includes: after the water tank base body 1 is formed by integrated stretching or welding, the oil stains on the inner and outer surfaces of the water tank base body 1 are removed by alkali washing and naturally dried; the water outlet 4 and the guide groove 5 are arranged at the bottom of the water tank base body 1, and the guide groove 5 has an inclined surface inclined along the water outlet 4, so that water or liquid can smoothly enter the water outlet 4 along the guide groove 5;

[0045] The sandblasting treatment includes: firstly subjecting the inner surface of the water tank base 1 to a wire drawing or sandblasting treatment to form a rough surface, wherein the purpose of setting the rough surface is to make it easier for the metal oxide layer 2 to be firmly bonded thereto;

[0046] The thermal spraying of the metal oxide layer comprises: using a plasma thermal spraying process, spraying the metal oxide layer 2 on the inner surface of the water tank substrate 1 at a temperature of 1500-2000°C; in this embodiment, the thermal spraying temperature is 1750°C;

[0047] The spraying of the low-temperature glaze layer comprises: spraying the low-temperature glaze layer 3 on the metal oxide layer 2 in a dust-free workshop by spraying;

[0048] The firing process includes: sending the water tank base 1 sprayed with the low-temperature glaze layer 3 into a sintering furnace for firing at a temperature of 750-850°C, keeping the temperature for 5-20 minutes, and then air cooling to room temperature. In this embodiment, the firing temperature is 800°C and the holding time is 15 minutes.

[0049] In summary, the utility model provides a scratch-resistant and antibacterial sink with a simple structure, reasonable design and easy implementation; a low-temperature glaze layer is coated on the surface of the sink, so that oil stains on the inner surface of the sink base can be easily scrubbed and removed; at the same time, the bonding strength between the sink base and the low-temperature glaze layer is ensured by a metal oxide layer, and the metal oxide layer ensures the adhesion of the low-temperature glaze layer to the sink base, reduces the risk of glaze peeling and falling off, and further extends the life of the glaze layer; the surface of the sink described in the utility model is set to a brushed or frosted rough surface, which enables the metal oxide layer to be more firmly bonded to the surface of the sink body, is not easy to fall off, and improves the stability of the product; the metal oxide layer described in the utility model adopts a plasma thermal spraying process, and has a high surface roughness, which is conducive to improving the adhesion of the low-temperature glaze layer force, and the transition layer can also reduce the risk of falling off and cracking caused by the large difference in expansion coefficients between the sink base and the low-temperature glaze layer; the metal oxide layer in the utility model with a thickness of 50-150μm can be more firmly combined with the sink base and the low-temperature glaze layer, and is not easy to fall off or peel off; the utility model adopts a low-temperature glaze layer with a thickness of 5-50μm, and utilizes the relatively smooth surface of the glaze layer to make it easier to clean oil stains; at the same time, the added titanium dioxide, nano zinc oxide or rare earth cerium oxide also makes the glaze layer have an antibacterial effect, and the antibacterial rate against Escherichia coli and Staphylococcus aureus exceeds 99%; the sink base of the utility model is a sink base made of stainless steel, enameled steel or cast iron, so that sink bases of various materials can be used, expanding the scope of use.

[0050] The description of the above specification and embodiments is used to explain the protection scope of the utility model, but does not constitute a limitation on the protection scope of the utility model. Through the enlightenment of the utility model or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent replacements or other improvements to the embodiments of the utility model or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the utility model.

Claims

1. A scratch-resistant and antibacterial sink, It is characterized in that It comprises a water tank base and a water outlet, wherein the water outlet is arranged at the bottom of the water tank base; the inner surface of the water tank base and the inner wall of the water outlet are coated with a metal oxide layer, and the metal oxide layer is coated with a low-temperature glaze layer.

2. The scratch-resistant and antibacterial sink according to claim 1, It is characterized in that The water tank base is made of stainless steel, enameled steel or cast iron.

3. The scratch-resistant and antibacterial sink according to claim 1 or 2, It is characterized in that The inner surface of the water tank base is a brushed surface or a frosted surface.

4. The scratch-resistant and antibacterial sink according to claim 1 or 2, It is characterized in that A guide groove is also provided on the bottom surface of the water tank base, and the guide groove has an inclined surface inclined along the water outlet.

5. The scratch-resistant and antibacterial sink according to claim 4, It is characterized in that The bottom surface of the water tank base is provided with four guide grooves, and the guide grooves are located between the four corners of the water tank base and the drain port.

6. The scratch-resistant and antibacterial sink according to claim 4, It is characterized in that The inclination angle of the inclined surface is 5°-10°.

7. The scratch-resistant and antibacterial sink according to claim 1 or 2, It is characterized in that The thickness of the metal oxide layer is 50-150 μm.

8. The scratch-resistant and antibacterial sink according to claim 1 or 2, It is characterized in that The thickness of the low-temperature glaze layer is 5-50 μm.

9. The scratch-resistant and antibacterial sink according to claim 1 or 2, It is characterized in that The scratch-resistant and antibacterial water tank further comprises an overflow hole, and the overflow hole is arranged on any side wall of the water tank base.

10. The scratch-resistant and antibacterial sink according to claim 1 or 2, It is characterized in that The scratch-resistant and antibacterial water tank further comprises a platform portion, which is arranged to protrude outwardly along the circumference of the upper edge of the water tank base.

11. The scratch-resistant and antibacterial sink according to claim 10, It is characterized in that The platform portion is provided with a faucet mounting hole.

Images