CN2233674Y - Vacuum preservation box - Google Patents

Abstract

The utility model discloses a vacuum preservation box which relates to a storage device utilizing the vacuum technology in the food preservation. The inner part of the box body is divided into a plurality of sealed small chambers (6), and the back wall of each of the sealed small chambers is provided with a round hole (11) and a vacuum valve sheet (12) which are communicated with a common air duct (13). The front end of each of the small chambers is provided with a small sealed glass door (4) on which a pin valve (3) is installed, and food is stored in the small chambers. When an air sucking pump is started, the air in the chamber enters the common air duct through the round holes and the vacuum valve sheets on the back walls and then is sucked out. Negative pressure with the vacuum degree of 60%-95% is formed in the small chambers to realize the food preservation. The utility model has the advantages that the food preservative time is long, the original color, the flavor and the taste of the food can be maintained in the maximal limitation, refrigerating agents and refrigerating systems do not need to be used, and the power can be saved by more than 90%.

Description

The vacuum freshness retaining storage bin

The vacuum freshness retaining storage bin relates to the food fresh keeping storage facilities that uses vacuum technique.

Food fresh keeping stores, and the modern times are generally adopted the refrigerator Refrigeration Technique, and the core of Refrigeration Technique is cold-producing medium and refrigeration system.Generally the chlorofluorocarbon cold-producing medium of Shi Yonging is big to the ozone layer infringement of preserving our planet, so the Montreal Agreement book is stipulated will forbid the production of chlorofluorocarbon in 1996.Various countries also do not find the most desirable substitute of chlorofluorocarbon cold-producing medium so far.Simultaneously, used refrigeration system is used the red copper parts more, loss national important material for preparedness against war.As the compressor of refrigeration system core, for keeping cryogenic temperature, started once automatically in per 20-30 minutes, each 20-30 minutes start-up times are more than an annual refrigerator consuming electric power 500 degree.China has refrigerator more than 1,000 ten thousand at least, and electric energy loss reaches more than 5,000,000,000 degree.Above problem can not solve in refrigerator production fully, and only way is a substitute of seeking refrigerator.1991 domestic a patent: the food vacuum fresh-keeping and storing box (patent No.: 9121503) without cold-producing medium and refrigeration system.Unfortunately it is simple in structure, and function only is equivalent to refrigerator-freezer, and abandon patent.The utility model is rational in infrastructure, is that optimal substitute 1 the problems referred to above of refrigerator all are readily solved.

The purpose of this utility model is to be family, and dining room and canteen etc. provide the fresh-keeping storage facilities of food such as meat, egg, fruit, replace refrigerator product, its profile and refrigerator profile fairly similar, but fully without cold-producing medium and refrigeration system and fresh-keeping effect is better, the storage time is longer.

The utility model is achieved in that and will be separated into some cells in the casing, interior storage food.Extract in each cell 60%-95% air out with aspiration pump, (belong to thick low vacuum category, reach easy maintenance easily), food is drawn remnant oxygen, discharges carbon dioxide.Food is under the synergy of vacuum and carbon dioxide, and microorganism loses mobility, can not multiply existence, thereby realizes fresh-keeping.

Compare with modern refrigerator Refrigeration Technique, it has following distinct advantages: 1. food preservation time is long, can keep the color of original food to greatest extent.2. without cold-producing medium, pollution-free source.3. without refrigeration system, save the red copper parts.4. aspiration pump frequent starting not only reduces dry sound but also can save a large amount of electric energy more than 90%.5. fresh-keeping function and the vacuum condition in each cell is identical, and its dischargeable capacity is big more than the refrigerating chamber volume of refrigerator.6. the equal seal isolation of each cell guarantees that food can cross-infection.

Accompanying drawing 1: be the utility model front schematic view; Accompanying drawing 2: be A-A vertical section schematic diagram.

Below in conjunction with its architectural feature of description of drawings:

Be separated into some sealing cells (6) in the casing (8), (drawing 6 among the figure, in fact the amount doesn't matter).One φ, 20 circular holes (11) are arranged on the rear wall of each cell, vacuum valve block (12) is arranged outside the hole, at ordinary times that the hole is airtight.The cell front end has little glass door (4), can see indoor food from glass door, between little glass door (4) and cell front end face, rubber packing (5) is arranged, dress needle-valve (3) on the door.Needle-valve is in the state of screwing at ordinary times, and air can not enter.There is public air flue (13) at the rear portion of casing (8), and through vacuum valve block (12), hole (11) are communicated with each cell.The air flue rear wall is back shroud (10), and rubber packing (9) is arranged around the cover plate.Termination vacuum meter (7) on the air flue, the vacuum pressure in monitoring air flue and the cell.The air flue lower end directly is communicated with the suction inlet of aspiration pump (14).There is gate (1) the whole box body front, and sealing strip (2) is magnetic around it.After food deposits each cell (6) in, start aspiration pump (14), in the cell air promptly along the direction of arrow through the hole (11), vacuum valve block (12) enters public air flue (13) and is drawn out of.When air in each cell extracted 60%-95% out, (being equivalent to vacuum pressure 456 holders-38 holders), vacuum meter (7) is gone up and talked number was 304 holders-722 holders.

When wanting in a certain cell of access food, inhour is rotated needle-valve (2) earlier, allows air enter cell, and this indoor vacuum state disappears, and can open little glass door (4), access food.Thing finishes, and closes little glass door tight, screws needle-valve (3) clockwise.At this moment, the air pressure on the vacuum meter (7) is higher than given when numeral, then starts aspiration pump (14) automatically, can recover the original vacuum state in this chamber, and other each chambers are not subjected to the influence of this operation because of seal isolation.

Claims (4)

1. the external form of vacuum freshness retaining storage bin is similar to refrigerator, the positive gate (1) that band magnetic type sealing strip is also arranged, it is characterized in that: be divided into some sealing cells (6) in the casing (8), one φ, 20 circular holes (11) are arranged on the cell rear wall, vacuum valve block (12) is arranged outside the hole, with the chamber sealing, front end has little glass door (4) at ordinary times, around it and between the cell front end rubber packing (5) is arranged.

2. according to the described vacuum freshness retaining storage bin of claim 1, it is characterized in that: φ 20 circular holes of each cell rear wall and vacuum valve block all are communicated with public air flue (13).

3. according to the described vacuum freshness retaining storage bin of claim 1, it is characterized in that; (1) on the glass door (4), needle-valve (3) is housed.

4. according to claim 1 and 2 described vacuum freshness retaining storage bins, it is characterized in that: rubber packing (9) is arranged around the bonnet (10), and the air flue upper end is communicated with vacuum meter (7), and the lower end is communicated with the suction inlet one of aspiration pump (14).

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