CN114294877A - Portable refrigeration food package bag - Google Patents

Abstract

The invention belongs to the technical field of food packaging, in particular to a portable refrigerated food packaging bag, comprising an inner layer bag and an outer layer bag, wherein the inner layer bag is located inside the outer layer bag, and the bag mouth of the inner layer bag is connected to the inner layer of the bag. The bag mouths of the outer bag are fixed to each other, the space between the outer wall of the inner bag and the inner wall of the outer bag is set as a cavity, and the cavity is evenly divided into a plurality of refrigerating chambers, and the refrigerating chambers are empty. The cavity is evenly distributed in the vertical direction, and any two adjacent refrigerating chambers in the bag body are not connected to each other. The refrigerating chamber is fixedly installed with a refrigerant bag and a reactant bag, and the refrigerant bag and the reactant bag are fixedly installed. They are in contact with each other but not communicated with each other, the refrigerant bag is filled with refrigerant, and the reactant bag is filled with water as a reactant; the present invention has a simple structure and can realize uniform refrigeration to preserve refrigerated frozen food At the same time, it can avoid the phenomenon that the refrigerant flows out after the refrigerating chamber is ruptured, which leads to the phenomenon that it cannot be refrigerated.

Description

A portable refrigerated food packaging bag

technical field

The invention belongs to the technical field of food packaging, in particular to a portable refrigeration food packaging bag.

Background technique

Food packaging bags refer to film containers that are in direct contact with food and are used to contain and protect food. Food packaging bags can be divided into: ordinary food packaging bags, vacuum food packaging bags, inflatable food packaging bags, boiled food according to their application scope. Packaging bags, retort food packaging bags and functional food packaging bags, most of the existing food packaging bags are designed as single-layer bags, and the existing food packaging bags are often unable to store frozen and refrigerated foods such as seafood. The quality of refrigerated food relies heavily on cold chain transportation to ensure the quality of these foods.

There are also some technical solutions for portable refrigerated food packaging bags in the prior art. For example, the Chinese patent with the application number of 202011614539.8 discloses a food packaging bag with a self-cooling function, including a packaging bag body. It is an open structure and is sealed by a tear strip at the top. The packaging bag body is respectively provided with a packaging cavity and a refrigeration cavity. The packaging cavity is used to store frozen food, and the refrigeration cavity is located below the packaging cavity. There are side cavities on both sides of the material cavity, the side cavities are also open structures, the bottom end of the side cavity and the refrigeration cavity are communicated through a communication pipe, an ice bag is arranged in the side cavity, and the The bottom end of the ice bag is provided with an opening, and the refrigeration cavity is filled with refrigerant. In this scheme, the water formed by the melting of the ice cubes in the ice bag flows into the refrigeration cavity and undergoes an endothermic reaction with the refrigerant, thereby making the packaging bag begin to cool. To ensure that the frozen and refrigerated food in the bag will not deteriorate during non-cold chain transportation, but this solution also exists when the food packaging bag accidentally damages the refrigeration cavity or ice bag during transportation, or when the refrigerant in the refrigeration cavity fails. There is a problem that the bag will not be able to be refrigerated.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art and solve the problem that the packaging bag will not be able to perform refrigeration when the refrigerating chamber or ice bag is accidentally damaged during the transportation and production process, or when the refrigerant in the refrigerating chamber fails, the present invention proposes a Portable refrigerated food packaging bags.

The technical solution adopted by the present invention to solve the technical problem is as follows: the portable refrigerated food packaging bag of the present invention includes an inner layer bag and an outer layer bag, the inner layer bag is located inside the outer layer bag, and the inner layer bag is located inside the outer layer bag. The bag mouth of the layer bag and the bag mouth of the outer layer bag are fixedly connected to each other, the space between the outer wall of the inner layer bag and the inner wall of the outer layer bag is set as a cavity, and the cavity is evenly divided into a plurality of refrigeration chambers, so The refrigerating chambers are evenly distributed in the vertical direction in the cavity, and any two adjacent refrigerating chambers in the bag body are not connected to each other. The refrigerating chamber is fixedly installed with a refrigerant bag and a reactant bag, and the refrigerant The bag and the reactant bag are in contact with each other but not communicated with each other, the refrigerant bag contains refrigerant, and the reactant bag contains water as a reactant.

When working, because the space between the inner bag and the outer bag is evenly divided into a plurality of refrigerating chambers during the production of the portable refrigerated food packaging bag, during the production and processing, the plurality of refrigerant bags and the reactants are respectively separated. The bag is placed in the corresponding refrigerated room, and the refrigerated food packaging bag is sealed, and only the mouth of the bag is used to put ingredients. When high-value ingredients such as fresh seafood and other high-value ingredients that need to be refrigerated are transported at high temperatures for short distances ranging from tens of minutes to several hours, put the high-value ingredients into disposable portable refrigerated food packaging bags, and carry out inspection on the bag mouth. Seal to ensure that the high-value ingredients in the bag are kept in a refrigerated state at a lower temperature, thereby ensuring the freshness of the ingredients. At the same time, before putting the ingredients into the bag, squeeze the portable refrigerated food packaging bag. At this time, the reactants located in the refrigeration chamber The bag and the refrigerant bag are squeezed by the external pressure at the same time, the reactant bag and the refrigerant bag are ruptured, the water in the reactant bag and the refrigerant in the refrigerant bag flow into the refrigerating chamber at the same time, and the two are in the refrigeration chamber. The reaction occurs indoors. At the same time, since the reactant is water, and the composition of the refrigerant is sodium bicarbonate, biuret and dimethyldiurea, the refrigerant dissolves in water in the refrigeration room and undergoes an endothermic reaction, and then absorbs the surrounding water. At the same time, since the cavity is evenly divided into multiple refrigeration chambers in the vertical direction, the refrigerant and the reactant are evenly stored in the refrigerant bag and the reactant bag in each refrigeration chamber, so the portable refrigeration food The packaging bag can evenly refrigerate the food in the bag during operation, which improves the refrigeration effect of the portable refrigerated food packaging bag, and avoids that the temperature of a certain part is too high to affect the freshness and quality of the food in the packaging bag. , and evenly distributed, so when a refrigerating chamber is damaged due to an accident and the refrigerant and reactant in the refrigerating chamber are lost, the storage layers of the refrigerant and reactant in other refrigerating chambers are still intact in the refrigerant bag and the reactant bag. , thus ensuring that the portable refrigerated food packaging bag can still be used, and the high-value ingredients in the sealed packaging bag can still have a fresh-keeping effect during non-cold chain transportation, avoiding the failure of the refrigerated food packaging bag due to the outflow of refrigerant after the refrigerating chamber is ruptured. Using the problem that needs to be remade, the refrigeration stability of the portable refrigerated food packaging bag is improved, and the cost of transportation of frozen and refrigerated food is saved.

Preferably, the outer layer bag is made of a metal film material, and air cavities are opened inside the outer layer bag, and the air cavities are evenly spaced along the circumferential direction of the outer layer bag.

When working, because the metal film has a certain reflection effect on the external heat, during the short-distance non-cold chain transportation of the ingredients in the packaging bag, the outer layer bag made of the metal film material can reduce the external heat entering the refrigerated food packaging bag. , which improves the heat insulation effect of the refrigerated food packaging bag, thereby improving the refrigerating effect of the refrigerated food packaging bag and prolonging the continuous cooling time of the refrigerated food packaging bag. The conductor makes the air cavity form a layer of heat insulation inside the outer bag, reducing the heat conducted from the outside to the refrigerating room, thereby ensuring the cooling effect of the refrigerated food packaging bag. At the same time, due to the existence of the air cavity, the outer Micro-striped protrusions are generated on the surface, so that the direct contact range between the refrigerated food packaging bag and the palm is converted from the outer surface of the entire outer bag to a micro-striped raised surface, thereby increasing the gap between the outer surface of the refrigerated food packaging bag and the palm of the hand. The friction force improves the gripping effect of the refrigerated food packaging bag, and avoids accidental drop during transportation, which may cause damage to the food in the bag.

Preferably, the air cavity is filled with foamed polyurethane material.

When working, the air cavity is filled with foamed polyurethane material. Compared with air, the foamed polyurethane material has better thermal insulation performance, which further improves the thermal insulation effect of the outer bag and further reduces the external conduction to the air. The heat in the refrigeration room makes the refrigeration effect of the refrigerated food packaging bag better. At the same time, because the foamed polyurethane material has excellent heat insulation and also has a certain elasticity, the foamed polyurethane material is filled with the air cavity and is outside the outer bag. Micro-striped protrusions are formed on the surface, so that when the food packaging bag is accidentally dropped, due to the elastic buffering of the foamed polyurethane, the food in the bag has a certain protective effect, and the filled foamed polyurethane material enhances the surface of the packaging bag. The structural stability of the raised stripes further improves the stability of the user when grasping the packaging bag, and avoids deformation of the air cavity, which may cause the user to grasp the packaging bag and slip off.

Preferably, a plastic heat pipe is fixedly installed in the cavity, the refrigerating chamber is separated by a plastic heat pipe, the two ends of the plastic heat pipe are not connected, and the plastic heat pipe is connected in a ring shape by a rubber block between the two ends. , the plastic heat pipe is wrapped around the outer wall of the inner bag in a ring shape, and the plastic heat pipe is evenly distributed along the vertical direction in the cavity.

During operation, since the plastic heat pipe is installed in the cavity and the refrigeration chamber is separated by the plastic heat pipe, there are slight differences in the temperature at different positions in the refrigeration chamber, and the plastic heat pipe is located between the two refrigeration chambers. The heat has the characteristics of high conductivity. The plastic heat pipe conducts the heat from the relatively high temperature in the refrigeration room to the low temperature. Due to the endothermic reaction between the refrigerant and the reactant, the refrigeration produces a cooling effect. Therefore, the heat conducted by the plastic heat pipe is absorbed by the refrigerant. In this way, the cooling effect is uniform, the temperature in the cooling room is balanced and low, and the preservation effect of the food in the bag is avoided due to the uneven cooling effect, and the plastic heat pipe is annularly wrapped on the outer wall of the inner bag, and the plastic heat pipe is in the vertical direction. Evenly distributed, a cross-shaped grid is formed between the plastic heat pipe and the air cavity, which further improves the strength of the food packaging bag and reduces the damage of the food packaging bag during use.

Preferably, the rubber block is provided with a drawstring hole, the cavity is provided with a drawstring, and the drawstring passes through the drawstring hole and penetrates the refrigerant bag and the reactant bag.

When working, when the refrigerated food packaging bag needs to be refrigerated, pull the drawstring upwards. Since the drawstring passes through the drawstring hole and penetrates through the refrigerant bag and the reactant bag, when the drawstring moves upward, the pull rope penetrates The refrigerant bag and the reactant bag move upward together with the upward movement of the drawstring, and then contact the upper surface of the refrigerating chamber, causing the refrigerant bag and the reactant bag to be squeezed by the upper surface of the refrigerating chamber and rupture. Unbroken refrigerant bags and reactant bags are ruptured, causing the refrigerant and reactant to react in the refrigeration chamber, thereby ensuring that all refrigerant bags and reactant bags are ruptured, so that all refrigerants and reactants react, avoiding Some of the refrigerant bags and reactant bags were not cracked and did not react, which affected the refrigeration effect and refrigeration uniformity of the refrigerated food packaging bags. Due to the elastic force of the rubber block itself, the inner wall of the drawstring hole is always close to the drawstring, so as to ensure that the refrigeration chamber is always in a closed state, avoiding the refrigerant flowing out of each refrigeration room through the drawstring hole when the drawstring moves upward, which will lead to All the refrigerants are mixed, which makes the cooling effect uneven. At the same time, when some refrigeration chambers are ruptured, the food packaging bags cannot be refrigerated because all the refrigerants are mixed and flow out of the packaging bags from the ruptured refrigeration chambers. The packaging bag cannot be used normally.

Preferably, a plurality of clamping blocks are fixedly installed on the drawstring, and the clamping blocks are all located in the reactant bag; in any refrigeration chamber in the cavity, the distance between the reactant bag and the bag mouth is greater than The distance between the refrigerant bag and the mouth of the bag.

When working, when the pull rope moves upward, the block located on the pull rope starts to move upward synchronously, and the block contacts the refrigerant bag and the reactant bag respectively during the upward movement, which leads to the rupture of the refrigerator bag and the reactant bag. , so that the refrigerant and the reactant are mixed and reacted in the refrigerating chamber, which further avoids the unruptured reaction between the refrigerant bag and the reactant bag in a certain refrigerating chamber, resulting in the reduction of the refrigeration effect and the occurrence of uneven refrigeration.

The beneficial effects of the present invention are as follows:

1. A portable refrigerated food packaging bag according to the present invention, by setting a plurality of refrigerating chambers and installing a plurality of refrigerant bags and reactant bags in the refrigerating chambers, avoiding the refrigerated food packaging with only a single refrigerant and a reactant. During the transportation, storage and use of the bag, the surface of the bag body is damaged, which leads to the loss of refrigerant, which affects the refrigeration effect of the refrigerated food packaging bag, resulting in the deterioration of the food in the bag or the impact on the freshness, which improves the refrigeration stability of the refrigerated food packaging bag. and cooling uniformity, and at the same time, the arrangement of the pull rope and the block avoids the problem that the refrigerant bag and the reactant bag in a certain refrigeration room are not ruptured, which leads to the reduction of the cooling effect and the uneven cooling.

2. A portable refrigerated food packaging bag according to the present invention is made of an outer layer bag made of aluminized metal film material, and an air cavity is opened in the outer layer bag, and the characteristic of poor heat conduction of air is used to reduce the external heat. Transmission, forming a certain heat insulation effect, reducing the loss of cold air in the bag, improving the refrigeration time of the portable refrigerated food packaging bag, and filling the air cavity with foamed polyurethane material, which further improves the heat insulation effect. The elasticity of the foamed polyurethane material avoids the loss of the food in the bag when the portable refrigerated food packaging bag is accidentally dropped. At the same time, the foamed polyurethane material is filled in the air cavity to form a micro-striped protrusion on the surface of the outer bag, which can be used in the food packaging bag. When an accidental drop occurs, the food in the bag is protected to a certain extent, and the micro-stripe protrusions also improve the gripping effect of the food packaging bag, preventing the food packaging bag from being accidentally dropped.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a partial enlarged view at A in Fig. 1;

In the figure: inner bag 1, outer bag 2, air cavity 21, cavity 3, refrigeration chamber 4, reagent bag 41, refrigerant bag 42, plastic heat pipe 5, heat-resistant rubber block 51, drawstring 6, card Block 61.

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific embodiments.

As shown in FIG. 1 to FIG. 2, a portable refrigerated food packaging bag according to the present invention includes an inner layer bag 1 and an outer layer bag 2, the inner layer bag 1 is located inside the outer layer bag 2, and the inner layer bag The mouth of the bag 1 and the mouth of the outer bag 2 are fixed to each other, the space between the outer wall of the inner bag 1 and the inner wall of the outer bag 2 is set as a cavity 3, and the cavity 3 is evenly divided into A plurality of refrigerating chambers 4, the refrigerating chambers 4 are evenly distributed in the vertical direction in the cavity 3, any two adjacent refrigerating chambers 4 in the bag body are not communicated with each other, and the refrigerating chambers 4 are fixedly installed with The refrigerant bag 42 and the reactant bag 41 are in contact with each other but are not in communication with each other. The refrigerant bag 42 contains refrigerant, and the reactant bag 41 contains the refrigerant. Contains water as a reactant.

During operation, since the space between the inner layer bag 1 and the outer layer bag 2 is evenly divided into a plurality of refrigerating chambers 4 during the production of the portable refrigerated food packaging bag, the plurality of refrigerant bags are respectively divided into 42 and the reactant bag 41 are placed in the corresponding refrigerating chamber 4, and the refrigerated food packaging bag is sealed, and only the opening of the bag is used to put ingredients, for example, after buying seafood in the supermarket, take it home or use it as a food. When giving gifts to others, it is necessary to put high-value ingredients such as fresh seafood and other high-value ingredients that need to be refrigerated for short-distance transportation at high temperatures for tens of minutes to several hours, and put the high-value ingredients into disposable portable refrigerated food packaging bags. , seal the bag mouth of the packaging bag to ensure that the high-value ingredients in the bag are kept in a refrigerated state at a lower temperature, so as to ensure the freshness of the ingredients. At the same time, before putting the ingredients into the packaging bag, squeeze the portable refrigeration food packaging bag. At the same time, the reactant bag 41 and the refrigerant bag 42 located in the refrigerating chamber 4 are simultaneously squeezed by the external pressure, the reactant bag 41 and the refrigerant bag 42 are ruptured, and the water in the reactant bag 41 and the refrigerant bag in the refrigerant bag 41 are ruptured. The refrigerant in 42 flows into the refrigerating chamber 4 at the same time, and the two react in the refrigerating chamber 4. At the same time, since the reactant is water, and the composition of the refrigerant is sodium bicarbonate, biuret and dimethyl diuret Therefore, the refrigerant dissolves in water in the refrigerating chamber 4 and undergoes an endothermic reaction, thereby absorbing the surrounding heat and producing a refrigerating effect. Therefore, the portable refrigerated food packaging bag can evenly refrigerate the food in the bag during operation, which improves the refrigeration effect of the portable refrigerated food packaging bag. Since there are multiple refrigerating chambers 4 and they are evenly distributed, when a refrigerating chamber 4 is damaged due to an accident and the refrigerant and the reactant in the refrigerating chamber 4 are lost, the refrigerant and the reactant in the other refrigerating chambers 4 are still intact. The storage layer is in the refrigerant bag 42 and the reactant bag 41, thereby ensuring that the portable refrigerated food packaging bag can still be used, and has a fresh-keeping effect on the frozen and refrigerated food during non-cold chain transportation, avoiding the refrigeration after the rupture of the refrigerating chamber 4. The outflow of the agent leads to the problem that the refrigerated food packaging bag cannot be used and needs to be remade, thereby improving the refrigeration stability of the portable refrigerated food packaging bag, and at the same time saving the cost of transporting the frozen and refrigerated food.

As an embodiment of the present invention, the outer bag 2 is made of a metal film material, and air cavities 21 are opened inside the outer bag 2 , and the air cavities 21 are evenly spaced along the circumferential direction of the outer bag 2 .

During operation, since the metal film has a certain reflection effect on the external heat, during the short-distance non-cold chain transportation of the ingredients in the packaging bag, the outer bag 2 made of the metal film material can reduce the external heat from entering the refrigerating chamber 4. The thermal insulation effect of the refrigerated food packaging bag is improved, thereby improving the refrigerating effect of the refrigerated food packaging bag and prolonging the continuous cooling time of the refrigerated food packaging bag. conductor, so that the air cavity 21 forms an insulating layer inside the outer bag 2, which reduces the heat conducted from the outside to the refrigerating chamber 4, thereby ensuring the cooling effect of the refrigerated food packaging bag. At the same time, due to the existence of the air cavity 21, Micro-striped protrusions are generated on the outer surface of the outer layer bag 2, so that the direct contact range between the refrigerated food packaging bag and the palm is converted from the entire outer surface of the outer layer bag 2 to a micro-striped convex surface, thereby increasing the refrigerated food packaging. The frictional force between the outer surface of the bag and the palm improves the gripping effect of the refrigerated food packaging bag, and avoids damage to the food in the bag caused by accidental falling during transportation.

As an embodiment of the present invention, the air cavity 21 is filled with foamed polyurethane material.

During operation, the air cavity 21 is filled with foamed polyurethane material. Compared with air, the foamed polyurethane material has better thermal insulation performance, so that the thermal insulation effect of the outer bag 2 is further improved, and the external environment is further reduced. The heat conducted to the refrigerating chamber 4 makes the refrigeration effect of the refrigerated food packaging bag better. At the same time, because the foamed polyurethane material has excellent heat insulation and a certain elasticity, the foamed polyurethane material fills the air cavity 21 . Then, micro-striped protrusions are formed on the outer surface of the outer bag 2, so that when the food packaging bag is accidentally dropped, due to the elastic buffering of the foamed polyurethane, a certain protective effect is produced on the food in the bag, and the filled foamed polyurethane has a certain protective effect. The material improves the structural stability of the micro-striped protrusions formed on the surface of the packaging bag, further improves the stability of the user when grasping the packaging bag, and avoids the deformation of the air cavity 21, which may cause the user to grasp the packaging bag and slip off.

As an embodiment of the present invention, a plastic heat pipe 5 is fixedly installed in the cavity 3, the refrigeration chamber 4 is separated by the plastic heat pipe 5, and the two ends of the plastic heat pipe 5 are not connected, and the plastic heat pipe 5 The plastic heat pipes 5 are annularly wrapped around the outer wall of the inner bag 1 through the rubber blocks 51 between the two ends. The plastic heat pipes 5 are evenly distributed in the cavity 3 along the vertical direction.

During operation, since the plastic heat pipe 4 is installed in the cavity 3 and the refrigerating chamber 4 is separated by the plastic heat pipe 5, there are slight differences in the temperature of different positions in the refrigerating chamber 4, and the plastic heat pipe 5 is located between the two refrigerating chambers 4. At this time, because the plastic heat pipe 4 has the characteristics of high heat conductivity, the plastic heat pipe 5 conducts the heat from the relatively high temperature in the refrigeration chamber 4 to the low temperature, and the refrigeration produces a cooling effect due to the endothermic reaction between the refrigerant and the reactant. Therefore, the heat conducted by the plastic heat pipe 5 is absorbed by the refrigerant, so as to achieve a uniform cooling effect, ensure that the temperature in the refrigeration chamber 4 is balanced and low, and avoid affecting the preservation effect of the food in the bag due to the uneven cooling effect. It is wrapped around the outer wall of the inner bag 1 in a ring shape, and the plastic heat pipes 5 are evenly distributed along the vertical direction, and a cross-shaped grid is formed between the plastic heat pipes 5 and the air cavity 21, which further improves the strength of the food packaging bag and reduces the food consumption. Damage to the packaging bag during use.

As an embodiment of the present invention, the rubber block 51 is provided with a drawstring hole, the cavity 3 is provided with a drawstring 6, and the drawstring 6 passes through the drawstring hole and penetrates through the refrigerant bag 42 and the refrigerant bag 42 and the refrigerant bag 42. Reagent bag 41 .

When working, when it is necessary to refrigerate the food packaging bag for refrigeration, pull the drawstring 6 upwards, because the drawstring 6 passes through the drawstring hole and penetrates through the refrigerant bag 42 and the reactant bag 41, so when the drawstring 6 moves upward, The refrigerant bag 42 and the reactant bag 41 penetrated by the pull rope 6 are displaced upward together with the upward movement of the pull rope 6, and then contact the upper surface of the refrigerating chamber 4, so that the refrigerant bag 42 and the reactant bag 41 are affected by the upper surface of the refrigerating chamber 4. Squeeze and rupture, so that the unbroken refrigerant bag 42 and the reactant bag 41 after partially squeezing the packaging bag are ruptured, so that the refrigerant and the reactant react in the refrigeration chamber 4, thereby ensuring that all the refrigerant bags 42 and All the reactant bags 41 are ruptured, so that all the refrigerants and reactants react, so as to avoid that part of the refrigerant bags 42 and the reactant bags 41 are not squeezed and cracked, and no reaction occurs, thereby affecting the cooling effect and uniform cooling of the refrigerated food packaging bags. At the same time, because the pull rope 6 passes through the pull rope hole, when the pull rope 6 is pulled upward, due to the elastic force of the rubber block 51, the inner wall of the pull rope hole is always close to the pull rope 6, so as to ensure that the inside of the refrigerating chamber 4 It is always in a closed state, which prevents the refrigerant in each refrigerating chamber 4 from flowing out through the rope hole when the pulling rope 6 moves upwards, thereby causing all the refrigerant to mix, making the cooling effect uneven, and avoiding the occurrence of some refrigerating chambers 4. When all the refrigerants are mixed and flow out of the packaging bag from the ruptured refrigeration chamber 4, the food packaging bag cannot perform refrigeration work, so that the food packaging bag cannot be used normally.

As an embodiment of the present invention, a plurality of clamping blocks 61 are fixedly installed on the pulling rope 6, and the clamping blocks 61 are all located in the reagent bag 41; in any refrigeration chamber 4 in the cavity 3, the reaction The distance between the refrigerant bag 41 and the bag mouth is larger than the distance between the refrigerant bag 42 and the bag mouth.

During operation, when the pull rope 6 moves upward, the block 61 located on the pull rope 6 starts to move upward synchronously, and the block 61 contacts the refrigerant bag 42 and the reactant bag 41 respectively during the upward movement, thereby causing the refrigerator bag With the rupture of the reactant bag 41, the refrigerant and the reactant are mixed and reacted in the refrigeration chamber 4, which further prevents the refrigerant bag 42 in a certain refrigeration chamber 4 from reacting with the reactant bag 41 without rupture, thereby causing Reduced cooling effect and the appearance of uneven cooling.

The specific workflow is as follows:

During operation, since the space between the inner layer bag 1 and the outer layer bag 2 is evenly divided into a plurality of refrigerating chambers 4 during the production of the portable refrigerated food packaging bag, the plurality of refrigerant bags are respectively divided into 42 and the reactant bag 41 are placed in the corresponding refrigerating chamber 4, and the refrigerated food packaging bag is sealed, and only the opening of the bag is used to put ingredients, for example, after buying seafood in the supermarket, take it home or use it as a food. When giving gifts to others, it is necessary to put high-value ingredients such as fresh seafood and other high-value ingredients that need to be refrigerated for short-distance transportation at high temperatures for tens of minutes to several hours, and put the high-value ingredients into disposable portable refrigerated food packaging bags. , seal the bag mouth of the packaging bag to ensure that the high-value ingredients in the bag are kept in a refrigerated state at a lower temperature, so as to ensure the freshness of the ingredients. At the same time, before putting the ingredients into the packaging bag, squeeze the portable refrigeration food packaging bag. At the same time, the reactant bag 41 and the refrigerant bag 42 located in the refrigerating chamber 4 are simultaneously squeezed by the external pressure, the reactant bag 41 and the refrigerant bag 42 are ruptured, and the water in the reactant bag 41 and the refrigerant bag in the refrigerant bag 41 are ruptured. The refrigerant in 42 flows into the refrigerating chamber 4 at the same time, and the two react in the refrigerating chamber 4. At the same time, since the reactant is water, and the composition of the refrigerant is sodium bicarbonate, biuret and dimethyl diuret Therefore, the refrigerant dissolves in water in the refrigerating chamber 4 and undergoes an endothermic reaction, thereby absorbing the surrounding heat and producing a cooling effect. The outer layer bag 2 is made of metal film material, and an air cavity 21 is opened inside the outer layer bag 2 , the existence of the air cavity 21 makes the outer surface of the outer layer bag 2 produce micro-striped protrusions, the air cavity 21 is filled with foamed polyurethane material, and the foamed polyurethane material is formed on the outer surface of the outer layer bag 2 after filling the air cavity 21. The micro-stripes protrude, the plastic heat pipe 5 is installed in the cavity 3, and the refrigerating chamber 4 is separated by the plastic heat pipe 5. Distribution, a cross-shaped grid is formed between the plastic heat pipe 5 and the air cavity 21, and the pull rope 6 is pulled upward. When the 6 moves upward, the refrigerant bag 42 and the reactant bag 41 penetrated by the pull rope 6 move upward together with the upward movement of the pull rope 6, and then contact the upper surface of the refrigeration chamber 4, causing the refrigerant bag 42 and the reactant bag 41 to be refrigerated. The upper surface of the chamber 4 is squeezed and ruptured, so that the unbroken refrigerant bag 42 and the reactant bag 41 after partially squeezing the packaging bag are ruptured, so that the refrigerant and the reactant react in the refrigeration chamber 4, and the pull rope 6 Through the pull rope hole, when the pull rope 6 is pulled upward, due to the elastic force of the rubber block 51, the inner wall of the pull rope hole is always close to the pull rope 6, so as to ensure that the refrigeration chamber 4 is always in a closed state. When the rope 6 moves upward, the block 61 located on the pull rope 6 starts to move upward synchronously, and the block 61 contacts the refrigerant bag 42 and the reactant bag 41 respectively during the upward movement, thereby causing the refrigerator bag and the reactant bag 41 The rupture of the refrigerant and the reactant in the refrigerating chamber 4 react.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A portable refrigeration food package bag which characterized in that: comprises an inner bag (1) and an outer bag (2), the inner bag (1) is positioned inside the outer bag (2), the bag mouth of the inner bag (1) is fixedly connected with the bag mouth of the outer bag (2), the space between the outer wall of the inner bag (1) and the inner wall of the outer bag (2) is a cavity (3), the cavity (3) is uniformly divided into a plurality of refrigerating chambers (4), the refrigerating chambers (4) are uniformly distributed in the cavity (3) along the vertical direction, any two adjacent refrigerating chambers (4) in the bag body are not communicated with each other, a refrigerating agent bag (42) and a reactant bag (41) are fixedly arranged in the refrigerating chambers (4), the refrigerant bag (42) and the reactant bag (41) are in contact with each other but are not communicated with each other, the refrigerant bag (42) contains a refrigerant, and the reactant bag (41) contains water as a reactant.

2. The portable refrigerated food packaging bag of claim 1 wherein: the outer bag (2) is made of a metal film material, the inner part of the outer bag (2) is provided with air cavities (21), and the air cavities (21) are uniformly distributed at intervals along the circumferential direction of the outer bag (2).

3. The portable refrigerated food packaging bag of claim 1 wherein: the air cavity (21) is filled with a foaming polyurethane material.

4. The portable refrigerated food packaging bag of claim 1 wherein: the utility model discloses a refrigerator, including cavity (3), refrigeration room (4), plastics heat pipe (5), plastic heat pipe (5) and plastic heat pipe (5), the cavity is fixed mounting has plastics heat pipe (5), refrigeration room (4) are obtained by separating plastics heat pipe (5), do not communicate between plastics heat pipe (5) both ends, plastics heat pipe (5) are connected the ring through rubber block (51) between both ends, plastics heat pipe (5) are the ring and wrap up in inlayer bag (1) outer wall, vertical direction evenly distributed is followed in cavity (3) in plastics heat pipe (5).

5. The portable refrigerated food packaging bag of claim 1 wherein: the rubber block (51) is provided with a stay cord hole, a stay cord (6) is arranged in the cavity (3), and the stay cord (6) penetrates through the stay cord hole and penetrates through the refrigerant bag (42) and the reactant bag (41).

6. The portable refrigerated food packaging bag of claim 1 wherein: a plurality of fixture blocks (61) are fixedly installed on the pull rope (6), and the fixture blocks (61) are all positioned in the reactant bag (41); in any refrigerating chamber (4) in the cavity (3), the distance between the reactant bag (41) and the bag opening is larger than the distance between the refrigerant bag (42) and the bag opening.

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