Anti-fading trash can embedded with metal decorative panel

Abstract

The invention relates to the technical field of trash cans, and discloses a novel anti-fading trash can embedded with a metal decorative panel, comprising a trash can body, the outer surface of the trash can body being coated with a coloring layer, a paint bonding layer, a weather-resistant heat-insulating layer and a protective film layer in sequence; the paint bonding layer is used to bond the weather-resistant heat-insulating layer to the outer surface of the trash can body, and the raw materials of the weather-resistant heat-insulating layer include PVDF resin, methacrylate resin, weather-resistant color paste, ultraviolet light absorber, leveling agent, defoaming agent, dispersant and solvent; the trash can is provided with a coloring layer, a paint bonding layer, a weather-resistant heat-insulating layer and a protective film layer, the coloring layer and the weather-resistant heat-insulating layer color the trash can twice to ensure the color of the trash can, and the weather-resistant heat-insulating layer and the protective film layer can block and insulate ultraviolet rays, effectively preventing the trash can from fading.

Description

Technical Field

[0001] The invention relates to the technical field of trash cans, and in particular to an anti-fading trash can embedded with a metal decorative panel. Background Art

[0002] With the rapid expansion of cities and the sharp increase in population in my country, the problem of domestic waste has directly affected people's quality of life. According to statistics from the China Urban Environmental Sanitation Association, my country produces nearly 1 billion tons of waste each year, of which about 400 million tons are domestic waste, about 500 million tons are construction waste, and about 10 million tons are kitchen waste. At the same time, with the acceleration of my country's urbanization process and the improvement of people's living standards, urban domestic waste is still increasing at a rate of about 5%-8% per year.

[0003] Traditional trash cans will fade to varying degrees after being used for a period of time due to the ultraviolet rays of the sun, which not only affects the appearance and the city appearance, but also greatly shortens the service life of the trash cans. Existing trash cans are also tending to be intelligent, with positioning systems and detection devices added to them; if the trash cans are replaced frequently, the above components also need to be replaced frequently, which greatly increases the production cost. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a fade-resistant trash can embedded with a metal decorative panel, the trash can being provided with a coloring layer, a paint adhesive layer, a weather-resistant heat-insulating layer and a protective film layer. The coloring layer and the weather-resistant heat-insulating layer color the trash can twice to ensure the color of the trash can, and the weather-resistant heat-insulating layer and the protective film layer can block and insulate ultraviolet rays, effectively preventing the trash can from fading.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is as follows:

[0006] A fade-resistant trash can embedded with a metal decorative panel comprises a trash can body, the outer surface of which is coated with a coloring layer, a paint adhesive layer, a weather-resistant heat-insulating layer and a protective film layer in sequence; the paint adhesive layer is used to adhere the weather-resistant heat-insulating layer to the outer surface of the trash can body,

[0007] The raw materials of the weather-resistant heat-insulating layer include PVDF resin, methacrylic resin, weather-resistant color paste, ultraviolet light absorber, leveling agent, defoaming agent, dispersant and solvent.

[0008] In the present invention, further, the weather-resistant heat-insulating layer comprises, by weight: 20-30 parts of PVDF resin, 5-8 parts of methacrylate resin, 5-15 parts of weather-resistant color paste, 2-10 parts of ultraviolet light absorber, 0.1-0.5 parts of leveling agent, 0.1-0.3 parts of defoaming agent, 0.2-1 parts of dispersant and 20-30 parts of solvent.

[0009] In the present invention, further, the ultraviolet light absorber is a mixture of nano titanium dioxide and nano zinc oxide in a weight ratio of 1:2, and the solvent is dimethylformamide.

[0010] In the present invention, further, the preparation method of the weather-resistant heat-insulating layer includes the following steps: adding methacrylic resin to a solvent, stirring until it is completely dissolved, adding it to a PVDF resin grinder and grinding it for 3-6 hours until the fineness is less than 50μm; heating it to 60°C, adding an ultraviolet light absorber, a leveling agent, a defoaming agent, and a dispersant while stirring, adding a weather-resistant color paste after stirring evenly, and grinding it for another 1-5 hours until the fineness is less than 30μm.

[0011] In the present invention, further, the coating adhesive layer is an EVA resin adhesive coating.

[0012] In the present invention, further, the coloring layer comprises, by weight: 40-50 parts of epoxy resin, 1-2 parts of modified siloxane copolymer, 5-10 parts of AGE diluent, 3-5 parts of weather-resistant color paste and 20-40 parts of polyamide.

[0013] In the present invention, further, the method for preparing the coloring layer comprises the following steps: putting the raw materials into a mixer according to the proportions, stirring for 20-30 minutes until the mixture is uniform.

[0014] In the present invention, further, the protective film layer is a topcoat spray layer.

[0015] In the present invention, further, a metal decorative panel is embedded in the inner surface of the trash can body, and the metal decorative panel is located between the weather-resistant heat-insulating layer and the protective film layer.

[0016] The present invention further includes a trash can cover, which is rotatably connected to one side of the top of the trash can body. The bottom of the trash can body is detachably provided with a wear-resistant seat, and the material of the wear-resistant seat is iron or stainless steel.

[0017] In the present invention, further, a card slot is provided at the bottom of the trash can body, and the wear-resistant seat is provided with a buckle matching the card slot to fix the wear-resistant seat to the trash can body.

[0018] In the present invention, further, an arc-shaped groove is provided at the front end of the wear-resistant seat, and a detachable round roller is installed in the arc-shaped groove.

[0019] In the present invention, further, an annular protrusion is provided on the top of the trash can body, and a compression sleeve matching the shape thereof is clamped on the annular protrusion.

[0020] In the present invention, further, the pressing sleeve is provided with carrying grooves on two opposite sides to facilitate lifting the pressing sleeve.

[0021] In the present invention, further, a drainage hole is provided at the bottom of the trash can body.

[0022] In the present invention, further, the bottom of the trash can is provided with moving wheels.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] After being used for a period of time, traditional trash cans will fade to varying degrees due to the ultraviolet rays of the sun, and are often colorful, affecting the appearance and the city. The trash can of the present invention is provided with a coloring layer, a coating adhesive layer, a weather-resistant heat-insulating layer and a protective film layer. The coloring layer and the weather-resistant heat-insulating layer color the trash can twice to ensure the color of the trash can, and the weather-resistant heat-insulating layer and the protective film layer can block and insulate ultraviolet rays, effectively preventing the trash can from fading. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The schematic diagram is a structural diagram of a fade-resistant trash can embedded with a metal decorative panel.

[0026] Figure 2 The diagram is a schematic diagram of the disassembled structure of a fade-resistant trash can embedded with a metal decorative panel.

[0027] Figure 3 A side view of a fade-resistant trash can embedded in a decorative metal panel.

[0028] Figure 4 for Figure 3 Cross-sectional view at section AA.

[0029] Figure 5 for Figure 4 Enlarged view at A.

[0030] Figure 6 The present invention is a schematic diagram of the split structure of a fade-resistant trash can embedded with a metal decorative panel including a compression sleeve.

[0031] In the figure: 1-trash can body, 11-annular protrusion, 12-drainage hole, 101-coloring layer, 102-paint bonding layer, 103-weather-resistant insulation layer, 104-protective film layer, 2-trash can cover, 3-wear-resistant seat, 301-buckle, 302-arc groove, 303-round roller, 4-pressing sleeve, 401-handle slot, 5-moving wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] Please also see Figures 1 to 6 A preferred embodiment of the present invention provides a fade-resistant trash can embedded with a metal decorative panel, comprising a trash can body 1 and a trash can cover 2, wherein the trash can cover 2 is rotatably connected to one side of the top of the trash can body 1, and the outer surfaces of the trash can body 1 and the trash can cover 2 are coated with a coloring layer 101, a paint adhesive layer 102, a weather-resistant heat-insulating layer 103 and a protective film layer 104 in sequence; the paint adhesive layer 101 is used to adhere the weather-resistant heat-insulating layer 102 to the outer surfaces of the trash can body 1 and the trash can cover 2. Furthermore, a metal decorative panel is embedded in the inner surface of the trash can body 1, and the metal decorative panel is located between the weather-resistant heat-insulating layer 103 and the protective film layer 104, so as to achieve a beautiful and high-grade appearance and an appearance that is not easy to fade.

[0036] The bottom of the existing trash can is most susceptible to wear, so in this embodiment, the bottom of the trash can body 1 is detachably provided with a wear-resistant seat 3, and the material of the wear-resistant seat 3 is a wear-resistant material such as iron or stainless steel. Further, a card slot is provided at the bottom of the trash can body 1, and the wear-resistant seat 3 is provided with a buckle 301 matching the card slot to fix the wear-resistant seat 3 to the trash can body 1. When the wear-resistant seat 3 is worn and cannot be used, the wear-resistant seat 3 can be replaced, thereby extending the service life of the trash can itself.

[0037] In this embodiment, an arc groove 302 is provided at the front end of the wear-resistant seat 3, and a detachable round roller 303 is installed in the arc groove 302. The round roller 303 is fixed to the wear-resistant seat 3 by bolts and can be replaced. The round roller 303 can prevent one side of the wear-resistant seat 3 from directly contacting the ground and wearing quickly. At the same time, when the round roller 303 is worn and cannot be used, the round roller 303 can be replaced, thereby extending the service life of the wear-resistant seat 3.

[0038] In this embodiment, an annular protrusion 11 is provided on the top of the trash can body 1, and a pressing sleeve 4 matching its shape is clamped on the annular protrusion 11. The pressing sleeve 4 is pressed onto the garbage bag to effectively prevent the garbage bag from slipping and avoid the garbage from directly contacting the inner wall of the trash can and corroding the inner wall of the trash can.

[0039] In this embodiment, the pressing sleeve 4 is provided with hand-carrying grooves 401 on opposite sides, and a worker can grasp the hand-carrying grooves 401 to facilitate lifting the pressing sleeve 4 .

[0040] In this embodiment, a drainage hole 12 is provided at the bottom of the trash can body 1 to facilitate the drainage of liquid in the trash can body 1; when the drainage is not required, the drainage hole 12 is blocked by a plug, and when the drainage is required, the plug can be removed.

[0041] In this embodiment, a moving wheel 5 is further provided at the bottom of the trash can to facilitate the movement of the trash can.

[0042] Embodiment 1:

[0043] 1) Coloring layer: put 40 parts of epoxy resin, 1 part of modified siloxane copolymer, 5 parts of AGE diluent, 3 parts of commercially available green color paste and 20 parts of polyamide into a blender respectively, and stir for 20 minutes until the mixture is uniform.

[0044] 2) The coating bonding layer is an EVA resin adhesive coating;

[0045] 3) Weather-resistant heat-insulating layer: add 5 parts of methacrylic resin to 20 parts of dimethylformamide, stir until dissolved, add 20 parts of PVDF resin and grind in a grinder for 3 hours until the fineness is less than 50μm; heat to 60°C, add 2 parts of ultraviolet light absorber (the ultraviolet light absorber is a mixture of nano titanium dioxide and nano zinc oxide in a weight ratio of 1:2), 0.1 parts of leveling agent, 0.1 parts of defoaming agent, and 0.2 parts of dispersant while stirring, add weather-resistant color paste after stirring evenly, grind for 2 hours until the fineness is less than 30μm, and obtain;

[0046] 4) The protective film layer is a topcoat spray layer;

[0047] The outer surfaces of the trash can body and the trash can cover are coated with a coloring layer, a paint bonding layer, and a weather-resistant heat-insulating layer in sequence. The metal decorative panel is tightly attached to a metal grid, fixed by electric welding, and then stamped into shape; the formed metal decorative panel is glued to the trash can body; and finally a protective film layer is coated.

[0048] Embodiment 2:

[0049] 1) Coloring layer: 42 parts of epoxy resin, 1.2 parts of modified siloxane copolymer, 6 parts of AGE diluent, 3.5 parts of commercially available green color paste and 25 parts of polyamide are respectively put into a blender and stirred for 20 minutes until the mixture is uniform.

[0050] 2) The coating bonding layer is an EVA resin adhesive coating;

[0051] 3) Weather-resistant heat-insulating layer: add 6 parts of methacrylic resin to 25 parts of dimethylformamide, stir until dissolved, add 22 parts of PVDF resin and grind in a grinder for 4 hours until the fineness is less than 50μm; heat to 60°C, add 3 parts of ultraviolet light absorber (the ultraviolet light absorber is a mixture of nano titanium dioxide and nano zinc oxide in a weight ratio of 1:2), 0.2 parts of leveling agent, 0.1 parts of defoaming agent, and 0.2 parts of dispersant while stirring, add weather-resistant color paste after stirring evenly, grind for 3 hours until the fineness is less than 30μm, and obtain;

[0052] 4) The protective film layer is a topcoat spray layer;

[0053] The outer surfaces of the trash can body and the trash can cover are coated with a coloring layer, a paint bonding layer, and a weather-resistant heat-insulating layer in sequence. The metal decorative panel is tightly attached to a metal grid, fixed by electric welding, and then stamped into shape; the formed metal decorative panel is glued to the trash can body; and finally a protective film layer is coated.

[0054] Embodiment 3:

[0055] 1) Coloring layer: Put 45 parts of epoxy resin, 5 parts of modified siloxane copolymer, 8 parts of AGE diluent, 4 parts of commercially available green color paste and 30 parts of polyamide into a blender respectively, and stir for 30 minutes until the mixture is uniform.

[0056] 2) The coating bonding layer is an EVA resin adhesive coating;

[0057] 3) Weather-resistant heat-insulating layer: add 7 parts of methacrylic resin to 30 parts of dimethylformamide, stir until dissolved, add 30 parts of PVDF resin and grind in a grinder for 5 hours until the fineness is less than 50μm; heat to 60°C, add 8 parts of ultraviolet light absorber (the ultraviolet light absorber is a mixture of nano titanium dioxide and nano zinc oxide in a weight ratio of 1:2), 0.4 parts of leveling agent, 0.2 parts of defoaming agent, and 0.8 parts of dispersant while stirring, add weather-resistant color paste after stirring evenly, and grind for another 4 hours until the fineness is less than 30μm.

[0058] 4) The protective film layer is a topcoat spray layer;

[0059] The outer surfaces of the trash can body and the trash can cover are coated with a coloring layer, a paint bonding layer, and a weather-resistant heat-insulating layer in sequence. The metal decorative panel is tightly attached to a metal grid, fixed by electric welding, and then stamped into shape; the formed metal decorative panel is glued to the trash can body; and finally a protective film layer is coated.

[0060] Embodiment 4:

[0061] 1) Coloring layer: 50 parts of epoxy resin, 2 parts of modified siloxane copolymer, 10 parts of AGE diluent, 5 parts of commercially available green color paste and 40 parts of polyamide are respectively put into a blender and stirred for 30 minutes until the mixture is uniform.

[0062] 2) The coating bonding layer is an EVA resin adhesive coating;

[0063] 3) Weather-resistant heat-insulating layer: add 8 parts of methacrylic resin to 30 parts of dimethylformamide, stir until dissolved, add 30 parts of PVDF resin and grind in a grinder for 6 hours until the fineness is less than 50μm; heat to 60°C, add 10 parts of ultraviolet light absorber (the ultraviolet light absorber is a mixture of nano titanium dioxide and nano zinc oxide in a weight ratio of 1:2), 0.5 parts of leveling agent, 0.3 parts of defoaming agent, and 1 part of dispersant while stirring, add weather-resistant color paste after stirring evenly, and grind for another 5 hours until the fineness is less than 30μm, and obtain;

[0064] 4) The protective film layer is a topcoat spray layer;

[0065] The outer surfaces of the trash can body and the trash can cover are coated with a coloring layer, a paint bonding layer, and a weather-resistant heat-insulating layer in sequence. The metal decorative panel is tightly attached to a metal grid, fixed by electric welding, and then stamped into shape; the formed metal decorative panel is glued to the trash can body; and finally a protective film layer is coated.

[0066] The trash cans without spraying coloring layer, paint adhesive layer, weather-resistant insulation layer and protective film layer and the trash cans prepared in Examples 1 to 4 were placed in the same open space outdoors. The unsprayed trash cans showed slight discoloration visible to the naked eye at 14 months and obvious discoloration at 18 months; while the trash cans prepared in Examples 1 to 4 did not show any fading to the naked eye in 18 months.

[0067] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A fade-resistant trash can embedded with a metal decorative panel, comprising a trash can body, characterized in that: The outer surface of the trash can body is coated with a coloring layer, a paint bonding layer, a weather-resistant heat-insulating layer and a protective film layer in sequence; the paint bonding layer is used to bond the weather-resistant heat-insulating layer to the outer surface of the trash can body. The weather-resistant heat-insulating layer comprises, by weight: 20-30 parts of PVDF resin, 5-8 parts of methacrylic resin, 5-15 parts of weather-resistant color paste, 2-10 parts of ultraviolet light absorber, 0.1-0.5 parts of leveling agent, 0.1-0.3 parts of defoamer, 0.2-1 parts of dispersant and 20-30 parts of solvent; The coloring layer comprises, by weight: 40-50 parts of epoxy resin, 1-2 parts of modified siloxane copolymer, 5-10 parts of AGE diluent, 3-5 parts of weather-resistant color paste and 20-40 parts of polyamide.

2. The anti-fading trash can embedded with a metal decorative panel according to claim 1, characterized in that: The ultraviolet light absorber is a mixture of nano titanium dioxide and nano zinc oxide in a weight ratio of 1:

2.

3. The anti-fading trash can embedded with a metal decorative panel according to claim 1, characterized in that: The preparation method of the weather-resistant heat-insulating layer comprises the following steps: adding methacrylic resin to a solvent, stirring until it is completely dissolved, adding it to a PVDF resin grinder and grinding it for 3-6 hours until the fineness is less than 50 μm; heating it to 60° C., adding an ultraviolet light absorber, a leveling agent, a defoaming agent, and a dispersant while stirring, adding a weather-resistant color paste after stirring evenly, and grinding it for another 1-5 hours until the fineness is less than 30 μm.

4. The anti-fading trash can embedded with a metal decorative panel according to claim 1, characterized in that: The coating bonding layer is an EVA resin adhesive coating.

5. The anti-fading trash can embedded with a metal decorative panel according to claim 1, characterized in that: The preparation method of the coloring layer comprises the following steps: putting the raw materials into a mixer according to the proportions, stirring for 20-30 minutes until the mixture is uniform.

6. The anti-fading trash can embedded with a metal decorative panel according to claim 1, characterized in that: The protective film layer is a topcoat spray layer.

7. The anti-fading trash can embedded with a metal decorative panel according to claim 1, characterized in that: A metal decorative panel is embedded in the inner surface of the trash can body, and the metal decorative panel is located between the weather-resistant heat-insulating layer and the protective film layer.

8. A fade-resistant trash can embedded with a metal decorative panel according to any one of claims 1 to 7, characterized in that: It also includes a trash can cover, which is rotatably connected to one side of the top of the trash can body, and a wear-resistant seat is detachably provided at the bottom of the trash can body; a card slot is provided at the bottom of the trash can body, and the wear-resistant seat is provided with a buckle matching the card slot to fix the wear-resistant seat to the trash can body.

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