CN201432900Y - Corrugated box with fresh keeping device - Google Patents

Abstract

The utility model relates to a corrugated carton for article packaging, in particular to a corrugated carton with a fresh-keeping device. Including the box body, a liner is installed on the sides of the two opposite sides of the box, and each liner has a folded edge at the left and right ends, and the folded edge forms four gas channels with the four inner corners of the box body , and the surface of the flange is full of air holes; the bottom of the box is equipped with a backing plate, and the edge of the backing plate is provided with a downward fold, so that a gas channel is formed between the backing plate and the bottom plate of the box, and the backing plate is also clothed on the surface. The air hole is full; the side wall of the box body is provided with the inlet and outlet of cold air and disinfection gas connected to the gas channel, and a one-way valve is installed at the gas inlet and outlet. The invention provides a corrugated cardboard box with a fresh-keeping function which not only increases the compressive strength, but also can be pre-cooled, sterilized, etc., and maintains air circulation.

Description

Corrugated box with fresh keeping device

technical field

The utility model relates to a corrugated carton for article packaging, in particular to a corrugated carton with a fresh-keeping device.

Background technique

Corrugated cartons in the prior art are widely used in various product packaging, especially the packaging of fruits and vegetables is inseparable from corrugated cartons. The structure of traditional corrugated boxes has become common to people, and its function is limited to packaging, but cannot meet the special requirements of fruit and vegetable packaging. In fact, fruits and vegetables have higher requirements for packaging in the process of storage, transportation and sales. In order to prevent extrusion, rot, and deterioration, measures such as cooling, sterilization, disinfection, and air circulation in the packaging should be taken, especially for long-distance transport of fruits and vegetables.

Contents of the invention

The utility model mainly solves the deficiencies in the prior art, and provides a corrugated box with a fresh-keeping function that not only increases the compressive strength, but also can be pre-cooled, sterilized, etc., and maintains air circulation. The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions:

A corrugated cardboard box with a fresh-keeping device, including a box body, a lining board is installed on two opposite sides of the box body, and each lining board has a folded edge at the left and right ends, and the folded edge is connected with the box The four inner corners of the body form four gas passages, and the surface of the folded plate is covered with air holes; the bottom of the box is equipped with a backing plate, and the edge of the backing plate is provided with a downward folded edge, so that a formation is formed between the backing plate and the bottom plate of the box body. The gas channel is also covered with air holes on the backing plate; the side wall of the box body is provided with the inlet and outlet of cold air and disinfection gas connected to the gas channel, and a one-way valve is installed at the gas inlet and outlet.

The utility model effectively overcomes the problem that the existing corrugated cartons have no fresh-keeping function, because the corrugated cartons are provided with lining boards and backing boards with folded edges and air holes, and gas passages are formed between them and the box body, and a Inlets and outlets for the input of air-conditioning and disinfection gases are provided, so that fruits and vegetables can be pre-cooled, sterilized, and ventilated during packaging, storage, transportation and sales, especially during long-distance transportation, to ensure fruits and vegetables. Vegetables will not rot and deteriorate, and the liner and backing board also increase the compressive strength of the box, which can effectively prevent fruits and vegetables from being squeezed. The utility model also has the characteristics of simple structure and easy implementation.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the structure of the utility model;

Fig. 2 is a schematic diagram of a cross-sectional structure of the utility model;

Fig. 3 is a three-dimensional view of the structure of the liner of the present invention;

Fig. 4 is a perspective view of the backing plate structure.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment 1: As shown in Figure 1 and Figure 2, it includes a square box body 10 made of corrugated paper. Its structure is the same as that of the existing corrugated box. A liner 20 is respectively installed on the front and rear sides, and its structure is shown in Figure 3. There is a vertical flap 21 folded towards the front of the side respectively at the left and right ends of each liner. The inner corners form four triangular gas passages 30 in the up and down direction, and the surface of the folded plate is covered with air holes 211, which can lead the gas in the gas passages into the box. A backing plate 40 is installed at the bottom of the box body, and its structure is shown in Figure 4. The edge of the backing plate is provided with a downward folded edge, which is folded into a square to increase the compressive strength, and the folded edge makes the backing plate and the box A horizontal gas channel 50 is formed between the bottom plates of the body, and the backing plate surface is also covered with air holes 41. The horizontal gas channel and the upper and lower gas channels at the four corners of the box body together form a gas circulation channel for the gas circulation in the box. In order to keep fresh the fruits and vegetables contained in the box, there are cold air and disinfection gas inlets 11 connected with the gas passages 30 and 50 on the side wall near the top of the box, and the relative positions on one side of the diagonal line A gas outlet 12 is provided at the gas inlet 11 and a gas outlet 12, and a check valve similar to a bicycle valve core is installed at the gas inlet 11 and the outlet 12, so that the gas can only enter or discharge in one direction. When performing fresh-keeping treatment, an air-conditioning compressor can be used to input cold air and ozone disinfection gas into the box through the gas inlet for pre-cooling, air-flow cleaning, disinfection and other processes, so that small and medium-sized enterprises that lack large-scale pre-cooling, cleaning, and disinfection can use this utility model A new type of packaging box to achieve fresh-keeping treatment.

Claims (1)

1. A corrugated box with a fresh-keeping device, comprising a box body (10), characterized in that: a liner (20) is respectively equipped on the sides of the two opposite sides in the box, and the left and right sides of each liner There is a flap (21) at each end, which forms four gas passages (30) with the four inner corners of the box, and the surface of the flap is covered with air holes (211); the bottom of the box is equipped with a backing plate ( 40), the edge of the backing plate is provided with a downward fold, so that a gas channel (50) is formed between the backing plate and the bottom plate of the box body, and the surface of the backing plate is also covered with air holes (41); the side wall of the box body is provided with Cold air and sterilizing gas inlet (11) and outlet (12) that are communicated with gas channel (30), (50) are equipped with check valves at gas inlet (11) and outlet (12).

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