CN201228118Y - Fresh-keeping bag for food - Google Patents

Abstract

The utility model provides a vacuum-pumpable food fresh-keeping bag which saves storage space and is convenient for cleaning. An air extraction valve is provided, and an uneven anti-adhesion isolation film is provided inside the bag. The anti-adhesion isolation film is a casting film separately from the bag body, and the surface array of the casting film is provided with protrusions. The beneficial effects of the utility model are as follows: 1. The anti-adhesion isolation film does not occupy storage space and is easy to use; 2. The isolation film is independent from the bag body and is easy to clean; 3. The one-way valve ensures that the air will not flow back into the bag body, keeping fresh The effect is good.

Description

food preservation bag

technical field

The utility model relates to a food storage bag, in particular to a food fresh-keeping bag capable of purging the air in the bag.

Background technique

In daily life, we often encounter situations where food needs to be preserved. Freezing preservation will cause food to lose its freshness. A more reasonable preservation method is to use vacuum packaging. The main function of vacuum packaging is to remove oxygen to help prevent food from deteriorating. Because food Mold spoilage is mainly caused by the activities of microorganisms, and the survival of most microorganisms (such as mold and yeast) requires oxygen, and vacuum packaging uses this principle to suck out the oxygen in the packaging bag and food cells, so that Microbes lose their living environment. In addition to inhibiting the growth and reproduction of microorganisms, vacuum deoxygenation has another important function to prevent food oxidation. Because oily foods contain a large amount of unsaturated fatty acids, they are oxidized by oxygen, making food taste and deteriorate. . In addition, oxidation also causes the loss of vitamin A and vitamin C, and the unstable substances in food pigments are subjected to the action of oxygen to darken the color. Therefore, oxygen removal can effectively prevent food from deteriorating and maintain its color, aroma, taste and nutritional value.

Because the general plastic fresh-keeping film cannot be reused and causes pollution to the environment, there are food fresh-keeping bags that can be vacuumed on the market. The existing food fresh-keeping bags include a bag body, one end of the bag body is closed, and the other end has a Open and close the device, there is a valve on one side of the bag for the air to flow out from the inside of the bag, and the air in the bag can be pumped out through the air extraction device, so that the food can be preserved for a long time and keep it fresh, but this There is a defect in this kind of food preservation bag: when preserving food such as fish and meat, during the process of pumping air, the inner surface of the bag will be bonded and sealed with the food, so that part of the gas cannot be pumped out of the bag. If there is air in the bag Then the storage space is wasted and the food will spoil quickly, failing to achieve the purpose of keeping fresh. Now there is a food preservation bag on the market. One or more isolation plates are arranged on the inner wall of the bag, so that the food will not stick to the bag body and block the suction channel. Vacuum, but there are still the following defects: 1. The partition board occupies a certain space, and it is inconvenient to place the food. If the thickness is very thin and the effect of separating the food from the inner wall of the bag cannot be achieved, the air in the bag cannot be guaranteed to be pumped; 2. Due to the existence of the isolation board, it is inconvenient to clean the food preservation bag and it is difficult to reuse it.

Contents of the invention

Aiming at the defects in the prior art, the utility model provides a vacuum-pumpable food fresh-keeping bag which saves storage space and is easy to clean.

The technical scheme of the utility model is:

A food fresh-keeping bag, comprising a bag body, the bag body is provided with an opening, a pressing strip is provided at the opening, a sealing clip is provided on the pressing strip, and an air extraction valve is provided on the bag body, and it is characterized in that: Features an uneven anti-adhesive release film.

The anti-adhesion isolation film is a casting film separately from the bag body, and the surface array of the casting film is provided with protrusions.

The air extraction valve includes a valve seat and a valve cover, the valve seat is provided with a connecting cylinder protruding from the bag body, the bottom of the valve seat is provided with an air extraction channel, and a through hole is arranged on the valve seat located in the connecting cylinder, and the through hole There are several small air extraction holes connected to it, the through holes and the air extraction holes are closed by the plugging sheet, and the connecting head fitted with the through hole is provided under the blocking sheet, and the connecting head can be hooked to the edge of the through hole .

A groove adapted to the connecting cylinder is provided on the valve cover.

The valve cover is provided with a plunger that pushes against the sealing sheet to make the air-tight valve airtight when buckled.

The valve cover is provided with dial ears.

The beneficial effects of the utility model are as follows: 1. The anti-adhesion isolation film does not occupy storage space and is easy to use; 2. The isolation film is independent from the bag body and is easy to clean; 3. The one-way valve ensures that the air will not flow back into the bag body, keeping fresh The effect is good; 4. There is a dial ear on the valve cover, which is convenient to open.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is A-A sectional view of Fig. 1;

Fig. 3 is a structural schematic diagram of the air extraction valve of the present invention.

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model will be further described:

Referring to Fig. 1, a food fresh-keeping bag includes a bag body 1, the bag body is provided with an opening 2, and the opening 2 is provided with a pressing strip 3 that can be pressed and sealed with each other with concave and convex opposite to each other, and a sealing clip is provided on the pressing strip 3 4. When the sealing clip 4 is pulled up, the pressing strip 3 is pressed and sealed, and the bag body 1 is provided with an air extraction valve 5 for evacuating the air in the bag.

There is an uneven anti-adhesion isolation film 6 inside the bag body 1, open the bag body opening 2, put food in, pull up the sealing clip 4, open the one-way valve 5, and pump out the air in the bag 1 through the air extraction device, Owing to the uneven anti-adhesion isolation film 6 separates the food from the inner wall of the bag, food such as fish and meat will not be bonded to the inner wall of the bag to block the suction channel, so it can ensure that the air in the bag body 1 is Pull out fully. Close the air extraction valve 5, and the food can be placed and kept fresh. Referring to Fig. 2, the anti-adhesion isolation film 6 adopts a casting film with protrusions 7 in a surface array, which not only saves storage space, but also effectively prevents food such as fish and meat from adhering to the bag body.

Referring to Fig. 3, the air extraction valve 5 includes a valve seat 8 and a valve cover 9, the valve seat 8 is provided with a connecting cylinder 10 protruding from the bag body, the bottom of the valve seat 8 is provided with an air extraction channel 11, and the air extraction channel 11 ensures that the bag The walls in the body will not attract each other, and the air in the bag can be extracted through the air extraction channel 11 through the air extraction valve 5 . The valve seat 8 is provided with a through hole 12 at the position in the connecting cylinder 10, and the through hole 12 is provided with a plurality of air extraction holes 13 communicating therewith. A connector 15 fitted with the through hole 12 is provided under the sheet 14 . A groove 16 adapted to the connecting cylinder 10 is provided on the valve cover 9 . The connecting head 15 can move axially in the through hole 12 to make the blocking piece 17 float up or press the through hole 12 and the air suction hole 13. The lower end of the connecting head 15 can hook the edge of the through hole 12 to ensure that the connecting head 15 will not out of the hole 12. The valve cover 9 is provided with a plunger 17 that presses the plugging piece 14 to make the exhaust valve 5 gas-tight when buckled. The outlet of the small air hole 13 ensures that the suction valve 5 is airtight. When pumping air, the sealing piece 14 is sucked up, and the air in the bag is drawn out from the small suction hole 13; after the suction is completed, the sealing piece 14 is outside the bag. Compress through hole 12 and air extraction aperture 13 outlets under the effect of air pressure, thereby guarantee that air can not enter bag body from air extraction valve 5, and air extraction valve 5 bonnet 9 is provided with dial ear 18, is convenient to open.

Claims (6)

1. A food fresh-keeping bag, comprising a bag body (1), the bag body is provided with an opening (2), the opening (2) is provided with a pressing strip (3), and the pressing strip (3) is provided with a sealing clip ( 4), the bag body (1) is provided with an air extraction valve (5), and the feature is that: the bag body (1) is provided with an uneven anti-adhesion isolation film (6). 2. A food fresh-keeping bag as claimed in claim 1, characterized in that: the anti-adhesion isolation film (6) is a casting film separately provided from the bag body (1), and the surface of the casting film is The array is provided with protrusions (7). 3. A food fresh-keeping bag as claimed in claim 1 or 2, characterized in that: the air extraction valve (5) includes a valve seat (8) and a valve cover (9), and the valve seat (8) is provided with The connecting cylinder (10) protruding from the bag body, the bottom of the valve seat (8) is provided with an air extraction channel (11), and the valve seat (8) located in the connecting cylinder (10) is provided with a through hole (12), The through hole (12) is provided with some air extraction holes (13) connected thereto, and the through holes and the air extraction holes are closed by the plugging sheet (14). 12) A mated connector (15), the connector (15) can hook the edge of the through hole. 4. A food preservation bag according to claim 3, characterized in that: the valve cover (9) is provided with a groove (16) adapted to the connecting cylinder (10). 5. A food fresh-keeping bag as claimed in claim 3, characterized in that: the valve cover (9) is provided with a top pressure sealing piece (14) to make the suction valve (5) airtight when buckled. Plunger (17). 6. A food fresh-keeping bag according to claim 3 or 4, characterized in that: the valve cover (9) is provided with dial ears (18).

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