CN2485260Y

CN2485260Y - Thermal insulating paper box

Info

Publication number: CN2485260Y
Application number: CN 01208140
Authority: CN
Inventors: 陈茂雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-22
Filing date: 2001-03-22
Publication date: 2002-04-10
Anticipated expiration: 2011-03-22

Abstract

The utility model relates to a temperature preservation paper box structure which essentially consists of a box cover and a lower box, with the inside upper surface of the box cover covered with a temperature preservation layer which is made of a PU frothing body, and the lower box containing an outer box, an inner box and a temperature preservation layer which covers the inside of the inner box; wherein, the inner box is formed through the cutting and bending by a machine and then the temperature preservation layer is paved in the inner box so as to reduce the bending procedure and time of the inner box; the temperature preservation layer arranged on the box cover is provided with a groove to contain the dry ice, the groove is provided with a dispersing part so that the low temperature of the dry ice is evenly spread so as to improve the result in temperature preservation.

Description

Thermal insulating paper box

The utility model is a kind of Thermal insulating paper box, it mainly is provided with to cut with the machine one in end box and bends the inner box that forms, heat-insulation layer has all been elaborated in the inside of inner box and lid, the heat-insulation layer of being located in the lid has groove simultaneously, the all sides of this groove also form diffusion part, but so that the low temperature rectangular distribution of dry ice, play the effect of heat preservation food.

Food general freezing or refrigeration is abstained from high temperature most in the process of transporting, cause food softening and influence its freshness and mouthfeel, and be to guarantee that the food in the packing box keeps certain condensation effect and freshness, the insulation packing box of commonly using is to make with Styrofoam, in order to intercept the outer air of box body, make the air in the box body keep its certain low temperature, but because Styrofoam can't natural decomposition, burn waste gas produced again can foul air, and big public hazards of formation environment, therefore, the utility model designer once proposed the novel patent case of the 8421736 No. five " structural improvement of insulation packing box ", hereinafter to be referred as preceding case, it is that the insulation packing box is made up of inner box and lid, inner box and lid Bing Fen Do are made of outer box sheet and insulation internal layer, and the insulation internal layer is to cover identical shaped PU foaming layer in a fluting board bottom surface, after amounting to, being about to fluting board is coated in the PU foaming layer, place again in the outer box sheet, to place freezing or chilled food, insulation internal layer in lid is concaved with the dry ice fixed sturcture in addition, with ccontaining dry ice, keeps the low-temperature condition in the box body.

And because it can improve heat insulation effect, and easy to assembly and effect brilliance, so it is on record also to get permission patent, but after the utility model designer constantly researches and develops, the design of patent case is to the greatest extent imperfect yet before finding, and address as the back: 1. because the PU foaming layer is to adhere on the fluting board with powerful viscose glue, but the taste of powerful viscose glue is strong and meeting is remaining, influences the food taste in the packing box easily.Though 2. preceding case have can ccontaining dry ice the dry ice fixed sturcture, it only limits to the differential gap of box body, the low temperature that it distributed also can't be distributed in other partly.3. its insulation internal layer need can be amounted to into required form, rather inconvenience through artificial bending.

From the above, preceding case have can influence the effect of food taste, dry ice can't rectangular distribution and the insulation internal layer will be through artificial bending and therefore disappearance consuming time have the necessity that is improved in fact.

And be case disappearance before improving, main purpose of the present utility model is: a kind of Thermal insulating paper box structure is provided, it is made of lid and end box, elaborated heat-insulation layer in the lid, end box then comprises outer box, inner box and is layed in inner box in-to-in heat-insulation layer, for reducing the program of artificial bending, the utility model spy cuts bending with inner box with the machine one and forms, and the made heat-insulation layer of PU foaming layer is laid in bottom surface in inner box and side again; In addition the inside top surface in lid is equipped with heat-insulation layer, this heat-insulation layer and be provided with can ccontaining dry ice groove, this groove periphery also forms diffusion part, and the low temperature of dry ice can be evenly distributed in the box body.

Below in conjunction with drawings and Examples the utility model is elaborated:

Fig. 1 is the three-dimensional exploded view of lid of the present utility model and end box.

Fig. 2 is the three-dimensional exploded view of each member of the utility model.

Fig. 3 is the part three-dimensional exploded view of inner box of the present utility model and heat-insulation layer.

As shown in Figure 1, the utility model provides the Thermal insulating paper box structure, it mainly comprises lid 10 and end box 20, the laid inside of lid 10 has heat-insulation layer 11, end box 20 then comprises outer box 21, inner box 22 and is layed in inner box 22 in-to-in heat-insulation layers 23, so that food freezing or refrigeration is placed in the heat-insulation layer 23, and the inside and outside temperature of box body is intercepted mutually and keep low-temperature condition in the box body.

Above-mentioned is the member of roughly forming of the present utility model, detailed structure is then consulted shown in Figure 2 simultaneously, wherein, the structure and the preceding case of lid 10 and outer box 21 are roughly the same, so do not repeat, and the heat-insulation layer 11 that is layed in lid 10 inside top surface is concaved with groove 111 towards downside, all sides of groove 111 also are extended with several diffusion parts 112 to strengthen its groove 111 areas, make and place the low temperature of dry ice in the groove 111 to be distributed in the box body equably by diffusion part 112, and, be with two-layer stacked forming mutually in this preferred embodiment with this heat-insulation layer 11, be set as groove 111 and hollow out in the middle of the heat-insulation layer 11 with lower floor, another embodiment can be monolithic design, again the heat-insulation layer 11 of one chip is established groove 111 with certain depth towards downside;

Set inner box 22 is to make for a solid fiberboard in the outer box 21 of end box 20, it is to cut with the machine one, simultaneously each edge strip 221 is bent into the box body that opening makes progress in the same way, and between adjacent in twos edge strip 221, paste the location with adhesive plaster 222, lay for the heat-insulation layer of making by the PU foaming layer 23, and this heat-insulation layer 23 is to comprise egative film 231 and four lateral plates 232, wherein, the girth of egative film 231 is less than inner box 22, please consult shown in Figure 3 simultaneously, so when egative film 231 is placed inner box 22, still leave the gap around it, again lateral plate 232 be inserted in one by one between the edge strip 221 of egative film 231 and inner box 22, egative film 231 and lateral plate 232 can be positioned in the inner box 22 without pasting, again inner box 22 is placed outer box 21 tops, bend each lateral plate of outer box 21, can finish assembling.

From the above, design of the present utility model can be created several advantages: 1. do not affect the taste of food: owing to the adhesion that does not need between inner box and its inner heat-insulation layer through seccotine, Only simple insert group gets final product, so taste that can remaining viscose glue does not affect the original fine local flavor of food. 2. save the time of artificial bending: because inner box of the present utility model is directly to cut, bend and paste with machine, And save the artificial bending spent time of box body. 3. the dry ice effect can evenly distribute: because the groove of the accommodating dry ice of the utility model has diffusion part, and can be with dry ice Low temperature be distributed in equably in the box body, make the food in the box body all can keep low-temperature condition.

Claims

1. Thermal insulating paper box structure, it comprises lid and end box, be equipped with the heat-insulation layer that is constituted by the PU foaming body in the lid inside top surface, end box then comprises outer box, can be coated on outer box in-to-in inner box and elaborate in inner box in-to-in heat-insulation layer, it is characterized in that: be located at lid in-to-in heat-insulation layer, be arranged with a groove towards this side of end box; Inner box is that periphery is provided with an edge strip at least, and it is to cut by the machine one, simultaneously the Hard paper box that the edge strip bending is formed; Place the heat-insulation layer in the inner box to comprise an egative film and a lateral plate at least, wherein, the girth of egative film is less than inner box, and lateral plate is to be inserted between the edge strip of egative film and inner box.

2. Thermal insulating paper box structure as claimed in claim 1 is characterized in that: the groove periphery of being located at the heat-insulation layer of lid is extended with several diffusion parts.

3. Thermal insulating paper box structure as claimed in claim 1 or 2 is characterized in that: the heat-insulation layer of being located in the box body is made up of two PU foaming layers, and groove is to be located on this sheet heat-insulation layer of box of the contiguous end.