CN2075466U

CN2075466U - Foldable thermo-insulated sealing lunch box

Info

Publication number: CN2075466U
Application number: CN 90222238
Authority: CN
Inventors: 苏剑
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-12
Filing date: 1990-10-12
Publication date: 1991-04-24

Abstract

The utility model relates to a foldable thermo-insulated sealing lunch box which is composed of a lunch box cover which is provided with a seal ring and a box body, and the box body is composed of an exterior bracket and an inner cavity film. Each side plate of the exterior bracket is hinged by bearing pins and fitted by hasps; the inner cavity film is adhesively bonded by supporting films and multilayer films, which is bonded closely to the inner part of the bracket by gums. The utility model with the advantages of convenient portability and favorable thermal insulating property is foldable and eats in which are not easy to be leaked out. The cleaning can be done after the lunch box is being used only by tearing off a layer of the inside layer thin film under the condition of having no water, which is convenient and sanitary, bringing great convenience to tourists and the people who work outdoors.

Description

Foldable thermo-insulated sealing lunch box

The utility model relates to the essential articles for use lunch box of a kind of human lives, it comprises lid that has sealing ring and the box body that is made of outside support and inner chamber film.

Lunch box almost is the requirement that people go to work or go out to contain food, especially the student of college uses lunch box maximum, because usually far away between their dormitory, dining room, teaching district three, goes dormitory to get time-consuming, the effort of tableware after class at every turn, can not load the special again at one's side occupation of land side of band in the school bag.The lunch box of Xiao Shouing mostly is aluminium alloy, stainless steel or plastics and makes in the market, all exist volume big, carry shortcomings such as inconvenience, insulation are poor, spill and leakage.A kind of multifunctional heat insulating lunch box by name is disclosed for Chinese patent CN87201586 number; A kind of collapsible lunch box by name is disclosed for Chinese patent CN87208190 number, they have solved certain problem that existing lunch box exists respectively, but the people's lunch box under no water source situation to field work and out on tours can't clean, and not only unhygienic but also influence reuses.

The purpose of this utility model is to solve above-mentioned weak point of the prior art and proposes a kind of collapsible, health, leakproof, incubation canteen.

The purpose of this utility model can reach by following measure:

The material of lunch box is that four sides have sealing ring, box body to be made of outside support and inner chamber film in stainless steel or aluminum, the lid, the left surface of outside support is connected with the base plate hinge on one side, two minor faces each with front and back top board snap fit, the base plate another side is connected by pin hinge with left plate, and right plate two minor faces are connected with forward and backward top board hinge through bearing pin.The inner chamber film sticks with glue in the outside support inboard.The sealing ring material of four sides is nontoxic rubber or plastics in the lid, and the inner chamber film is by supporting film and multilayer film is bonding constitutes, and supporting film and multilayer film material are polypropylene plastics, and gross thickness is no more than 0.9 millimeter.

The drawing of accompanying drawing is described as follows:

Fig. 1: collapsible thermal-insulating sealing lunch box assembling schematic diagram.

Fig. 2: collapsible thermal-insulating sealing lunch box launches schematic diagram.

Fig. 3: collapsible thermal-insulating sealing lunch box inner chamber membrane structure schematic diagram.

Wherein: 1-left plate, 2-base plate, 3-bearing pin, 4-right plate, 5-front top plate, top board behind the 6-, 7-inner chamber film, 8-supporting film, 9-multilayer film.

The utility model compared with prior art has following advantage:

1, folding rear lunch box general thickness is no more than 5 millimeters, and volume is little, and is easy to carry. The lunch box part movement is simple, and is easy to use.

2, nontoxic rubber seal is arranged in the cover of the lunch box, food is difficult for spill and leakage.

3, a layer inner chamber film arranged in the lunch box, the heat conduction hardly of this kind material so heat radiation is slow, can play insulation effect.

4, cut off the water suddenly or out on tours under the anhydrous situation, tear thin film off, promptly reach and clean the lunch box purpose, convenient and sanitary.

The utility model carries out the embodiment detailed description in conjunction with the accompanying drawings:

Lunch box is made up of lid, outside support and inner chamber film.Nontoxic rubber seal is arranged around the lid inboard.Outside support structure expanded view as shown in Figure 2, it is made up of left plate (1), base plate (2), front top plate (5), right plate (4), back top board (6), connects with pin hinge between each sheet.Cover of the lunch box and each sheet material are corrosion resistant plate, inner chamber film (7) structure as shown in Figure 3, by thicker supporting film of one deck (8) and bonding the forming of plural layers (9), thickness is no more than 0.9 millimeter, and material is a polypropylene plastics, this elasticity of plastics is good, folding is folded, is difficult for tearing good heat resistance (can normally use in the time of 110 ℃), and nontoxic, airtight, watertightness is good.

At first cover of the lunch box is opened during use, again right plate (4), left plate (1) are upwards dug and made it vertical with base plate, front top plate (5) is rotated counterclockwise 270 °, back top board (6) turns clockwise 270 °, and correspondingly have contact with fastening respectively with on the left plate, firm outside support as shown in Figure 1, the hinged situation of front and back top board and right plate place is shown in accompanying drawing 1 bottom.

The left plate of inner chamber film and outside support (1) sticks with glue between right plate (4) and the base plate (2) and connects.Have a meal finish with inner chamber film (7) the inside skim tear off, front top plate (5), back top board (6) are threaded off and to 270 ° of outward turnings, be close to right plate (4) and left side plate inwardly overturn, cover of the lunch box is linked closely gets final product.

Claims

1, a kind of lunch box is made up of lid and box body, it is characterized in that: there is sealing ring four sides in the lid, box body is made of outside support and inner chamber film, outside support left plate (1) is connected by bearing pin (3) hinge with base plate (2) on one side, in addition two minor faces each with front top plate (5), back top board (6) snap fit, base (2) is connected by pin hinge with right plate (4) on one side, right plate (4) two minor faces are through bearing pin and front top plate (5), back top board (6) hinge connects, and the inner chamber film is connected on the outside support inboard with the adhesive.

2, lunch box according to claim 1 is characterized in that: the sealing ring material that adds around the cover of the lunch box the inside is nontoxic rubber or plastic mattress.

3, lunch box according to claim 1 is characterized in that: inner chamber film (7) is by supporting film (8) and multilayer film (9) bonding composition, and material is polypropylene plastics, and gross thickness is no more than 0.9 millimeter.