CN2062593U - Plastic thermos with vacuum plating - Google Patents

Abstract

The utility model relates to a plastic thermos with a vacuum plating film, which is a household daily article. The utility model is composed of a bottle cover, a bottle body and a bottom seat, wherein the bottle body is made of double layers of transparent plastic. The vacuum is formed by pumping between bottle walls and a metallic film layer made of aluminium or chromium or silver, etc. is plated between the bottle walls. The outer surface of the bottle body is processed by finish coating or hot stamping or metallization, etc. The utility model has the advantages of simple structure, portability, difficult fragmentation and favorable thermal insulating performance.

Description

Plastic thermos with vacuum plating

The utility model relates to a kind of household thermos bottle.

As everyone knows, widely used glass thermos bottle (Dewar bottle) in people's daily life, be evacuated and plate that the double glazing inner bag of silvery white metal and shell metal or plastics form by an inside, it can prevent preferably that heat is because of the width of cloth is penetrated, conduction and convection current caused loss, has good heat-insulating property, people have used its existing nearly bicentenary history, but it also exists tangible deficiency.At first being that glass is easily broken, normal in the life thing that thermos bottle is broken because of carelessness taking place, also cause people's scald sometimes, secondly is must leave the gap between double-layer inner containers and shell, makes its volume big and hot water that store is less relatively; In addition, because the easy heat conduction of glass, the skin that some heat passes to glass liner through the internal layer and the bottleneck of glass liner and scattering and disappearing has influenced heat-insulating property.

The purpose of this utility model is, provide a kind of difficult fragmentation, simple in structure, dischargeable capacity is big and the better vacuum flask of heat-insulating property.

Below in conjunction with drawings and Examples the utility model is explained.

Fig. 1 is an overall structure of the present utility model, and it comprises bottle cap (1), bottle (2) and base (3), can also add up knob and handle as required.Fig. 2 is the structure of bottle (2), and it is made of internal layer (4) and outer (5), and internal layer (4) and outer (5) are garden cylindricality and the combined structure of hemispherical.Cavity (8) between internal layer (4) and outer (5) is a vacuum, and the internal layer (4) that constitutes cavity (8) has heat reflection coating (6), (7) with outer (5) surface.Described bottle (2) is good by the transparency, good heat resistance, hardness and the also higher non-toxic plastic of intensity, makes as certain several acrylic resin and polyethylene tree etc.Manufacturing process adopts blow molding method, also can adopt the injection stretch blow molding method, to guarantee its transparency and intensity.After the moulding, cover with paint, lacquer, colour wash, etc. or thermoprint or plating at its outer surface as required.After modification was finished outside, the cast gate during by moulding (9) was pumped into 10 with the cavity between the double bottle wall (8) ^-4-10 ^-5The millimetres of mercury vacuum.Because of material character and the bottle shape that is adopted, bottle (2) can bear because of the negative pressure that vacuumizes generation indeformable.Adopt vacuum vapour deposition then, plate layer of aluminum or metallic diaphragms such as chromium or silver at layer (4), layer (5) inwall, promptly described heat reflection coating (6), (7) get final product cast gate (9) sealing at last.

Base (3) is made by painted rigid plastics or metal, adopts bonding method or welding that its bottom with body (2) firmly is connected, and adds up knob and handle, promptly makes finished product.

Heat preservation principle of the present utility model and technique effect have:

1, because bottle of the present utility model (2) is made of plastics, be difficult for brokenly, also can be broken into fritter even ftractureed, so it is long service life has also prevented the scald accident that causes because of fragmentation, safe in utilization.

2, bottle (2) only is made of two-layer, i.e. internal layer (4) and outer (5), and more existing glass gallbladder-heat water bottle has reduced one deck shell, therefore simplifies the structure and manufacturing process; When pondage was identical, volume of the present utility model was less, and weight is lighter.

3, be pumped into vacuum because of the cavity (8) of bottle (2), be coated with heat reflection coating again, so prevented effectively that the hot width of cloth from penetrating, conduction and convection losses, again because plastics are a kind of good heat-barrier materials, therefore can not resembling existing glass thermos bottle, to have the part heat to pass to glass liner through glass liner internal layer and bottleneck outer and scatter and disappear, so its heat-insulating property is better than having glass gallbladder-heat water bottle now.

In addition, therefore less scaling in the bottle because the thermal coefficient of expansion of plastics is different with the thermal coefficient of expansion of incrustation scale (calcium carbonate, magnesium carbonate etc.), if there is dirt also easily to come off, make to keep bright bright and clean in the bottle.

Manufacturing process of the present utility model is fairly simple, is suitable for producing in enormous quantities.

Above-mentioned advantage of the present utility model will bring convenience to people's life.

Description of drawings: Fig. 1 is an overall structure, and Fig. 2 is the internal structure of bottle, and Fig. 3 is a base, wherein:

1--bottle cap 2--bottle

3--base 4--internal layer

5--skin 6,7--heat reflection coating

8--vacuum lumen 9--cast gate

Claims (3)

1, a kind of household thermos bottle, constitute by bottle cap (1), bottle (2), base (3), it is characterized in that, the internal layer (4) that bottle (2) is made of plastics and outer (5) constitute, the outer surface of outer (5) has carried out covering with paint or processing such as thermoprint or plating, the cavity (8) of vacuum is arranged between internal layer (4) and outer (5), and there are heat reflection coating (6), (7) in two-layer (4) of formation cavity (8), the inboard of (5).

2, household thermos bottle according to claim 1 is characterized in that, described heat reflection coating (6), (7) are metallic aluminium or retes such as chromium or silver.

3, household thermos bottle according to claim 1 is characterized in that, it also comprises handle and handle.

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