CN113148407B

CN113148407B - Air leakage self-sealing type anti-oxidation packaging bag

Info

Publication number: CN113148407B
Application number: CN202110125721.5A
Authority: CN
Inventors: 张天明
Original assignee: Taizhou Yikai Packaging Co ltd
Current assignee: Taizhou Yikai Packaging Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2022-12-06
Anticipated expiration: 2041-01-29
Also published as: CN113148407A

Abstract

The invention discloses a gas-leakage self-sealing type anti-oxidation packaging bag, which belongs to the technical field of packaging bags and can be used for improving a strip-shaped opening of the existing packaging bag, once the gas leakage phenomenon occurs in the strip-shaped opening, a multi-effect sealing strip inlaid in the strip-shaped opening can absorb oxygen in air, a self-heating reaction is triggered inside a magnetic control box, then the magnetic control box is heated and softened to conduct rearrangement of magnetic shielding, at the moment, a magnet strip can conduct magnetic adsorption on a triggering magnetic ball on the inner side to force the triggering magnetic ball to puncture a water storage hemisphere to absorb moisture, then the water storage hemisphere is conveyed to a preset time-delay semicircular ring, a water-absorption ring at the corresponding position begins to dissolve the moisture, a large amount of heat is absorbed to force the moisture to freeze along the edge of the time-delay semicircular ring, so that the ice sealing of a gas-leakage area is realized, on one hand, on the other hand, the temperature interference caused by heating of the magnetic control box can be neutralized, and the anti-oxidation effect of the packaging bag is effectively improved.

Description

Air leakage self-sealing type anti-oxidation packaging bag

Technical Field

The invention relates to the technical field of packaging bags, in particular to a gas-leakage self-sealing type anti-oxidation packaging bag.

Background

The packaging bag is a bag for packaging various articles, so that the goods are convenient to transport and easy to store in the production flow process. Is widely used in daily life and industrial production. Actual figures show that 80% of used plastic bags are finally transported to a garbage piling field area for treatment like common garbage, and only seven percent of the plastic is recycled.

The composite flexible packaging material can be used only after being made into various packaging bags. The bag making has two modes, one mode is that a packaging manufacturer adopts a roll film to fill on an automatic packaging machine and forms and packages the roll film into various packaging bags; another is because the bag making machine makes various kinds of packaging bags and then fills the contents. Because professional bag making control is accurate, the bag shape is attractive, bag making changes are large, and the bags are multiple, the bags are made in advance under quite many conditions. The main varieties of bags are: three-sided bags (palm-folded bags), back bags, folding edges (organ bags), standing bags, etc.

The existing food packaging bag has very strict requirements on realizing oxygen isolation in a sealing way, food in the packaging bag is easy to be oxidized by oxygen in the air to cause spoilage, the packaging bag inevitably generates air leakage phenomenon in the production, transportation and use processes, and once the air leakage phenomenon is generated and the food is not timely perceived to be processed, the food can be spoiled and can not be eaten, so that a great amount of loss is caused.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a gas-leakage self-sealing type anti-oxidation packaging bag, which can be improved through a strip-shaped opening of the existing packaging bag, once the gas leakage phenomenon occurs in the strip-shaped opening, a multi-effect sealing strip inlaid in the strip-shaped opening can absorb oxygen in the air, a self-heating reaction is triggered inside a magnetic control box, then heating softening is carried out, magnetic shielding is carried out, at the moment, a magnet strip can carry out magnetic adsorption on a triggering magnetic ball inside the magnetic control box to force the triggering magnetic ball to puncture a water storage hemisphere to absorb moisture, then the water storage hemisphere is conveyed to a preset time-delay semicircular ring, a water absorption moisture of a condensation ring at a corresponding position starts dissolving, and a large amount of heat is absorbed to force the moisture to freeze along the edge of the time-delay semicircular ring, so that the ice sealing of a gas-leakage area can be realized, on one hand, on the other hand, the temperature interference caused by heating of the magnetic control box can be neutralized, and the anti-oxidation effect of the packaging bag can be effectively improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a gas leakage self-sealing formula anti-oxidation wrapping bag, includes the wrapping bag body, the strip opening has been seted up to wrapping bag body one end, strip opening the inner is inlayed and is connected with assorted multiple-effect sealing strip, both sides are connected with a plurality of evenly distributed's time delay semicircle ring respectively about the wrapping bag body inner, and time delay semicircle ring and the inner wall connection of multiple-effect sealing strip, time delay semicircle ring inboard is equipped with a plurality of evenly distributed's trigger magnetic ball, and is a pair of upper and lower correspondence time delay semicircle ring is close to one end each other and all inlays and be connected with congeal ice ring, congeal and be connected with two-way acting line between ice ring and the multiple-effect sealing strip, the multiple-effect sealing strip includes sealing strip body, magnet strip, accuse magnetic box and retaining hemisphere from outer to interior in proper order, the outer end of connecting in the sealing strip body is inlayed to accuse magnetic box, the retaining hemisphere is connected in the middle part of sealing strip body, the retaining hemisphere is inlayed and is connected in the inner of sealing strip body, and the retaining hemisphere and trigger magnetic ball phase-match.

Further, accuse magnetism box includes the box body and inlays the phase change obturator of connecting in the box body, inlay in the phase change obturator and be connected with the magnetic shielding piece of the crisscross distribution of multi-disc, a plurality of evenly distributed's suction port has been seted up on the box body surface, the in-line connection of suction port has waterproof ventilated membrane, be connected with elasticity between waterproof ventilated membrane and the magnetic shielding piece and act as go-between, the crisscross distribution of magnetic shielding piece both can practice thrift the space under the normal condition, can mutually support and form complete magnetic shielding effect to the magnet strip simultaneously, when the strip opening appears leaking gas the phenomenon, the air passes through the suction port and at first enters into the accuse magnetism box in, and the oxygen emergence reaction in phase change obturator and the air carries out spontaneous heating, forces its softening after heating the phase change obturator, then the magnetic shielding piece carries out migration redistribution under the tensile force effect of elasticity act as go-between the magnetic shielding piece each other, and the partial magnetic field of magnet strip can act on triggering the magnetic ball to begin to trigger self-sealing action.

Furthermore, the magnetic shielding sheet is made of a material with high magnetic conductivity, the elastic stay wire is made of an elastic material, and the elastic stay wire is in a stretching state.

Furthermore, the surface area of magnetic shield piece accounts for the half of magnet strip surface area, the tensile distance that elasticity was acted as go-between is greater than the width of magnetic shield piece, can guarantee under the normal condition that the magnetic shield piece realizes complete magnetic shielding effect to the magnet strip, avoids the magnetic field of magnet strip to disturb in advance to trigger the magnetic ball, and acts as go-between elasticity after the phase transition obturator softens and also can fully pull open the magnetic shield piece and spill the space, supplies the partial magnetic field of magnet strip to pass through.

Furthermore, the phase change filling body is made into a porous structure by adopting a hot-melt material, and the phase change filling body is filled with a self-heating material which can be subjected to oxidation reaction with oxygen in the air so as to release heat, so that the phase change filling body with the porous structure can meet the requirement of ventilation and can be rapidly softened in a heating state, and the timeliness of self-sealing action is improved.

Further, the retaining hemisphere is including the hemisphere and the barrier film that absorb water, the barrier film covers in the surface of the hemisphere that absorbs water, and the hemisphere that absorbs water and trigger the magnetic ball phase-match, and the barrier film plays the isolation to triggering the magnetic ball under the normal condition, avoids triggering the magnetic ball and contacts the hemisphere that absorbs water and absorb moisture in advance by mistake, absorbs water the hemisphere in addition and trigger the magnetic ball phase-match and can be under the extrusion that receives the hemisphere that absorbs water, fully contacts and absorbs a large amount of moisture.

Further, trigger the magnetic ball including fixed hemisphere, commentaries on classics water hemisphere and magnetism contact pilotage, fixed hemisphere with change the symmetric connection between the water hemisphere, magnetism contact pilotage is connected with fixed hemisphere, and magnetism contact pilotage runs through and changes water hemisphere and extend to its outside, and when magnetism contact pilotage received the magnetic adsorption of magnet strip and acted on, the contact punctured the barrier film and then with the hemisphere contact that absorbs water, the hemisphere that absorbs water released moisture after receiving the extrusion to only can follow the release of the drill way department of puncturing on the barrier film, can effectively avoid moisture to flow in a large number and permeate to the inside infringement that causes food of wrapping bag body.

Furthermore, the bidirectional pull wire and the water transfer hemisphere are made of inelastic water absorption materials, the bidirectional pull wire penetrates through the fixed hemisphere and extends to the inner side of the water transfer hemisphere, the inelastic materials can improve the stability of sealing action, and failure caused by interference is not prone to occurring.

Further, the congeal ice ring adopts the niter to make, and congeals the intra-annular of ice and inlay and be connected with a plurality of allochroic silica gel granules, and the niter can absorb a large amount of heats and lead to freezing when dissolving in water to force a pair of time delay semicircle ring to combine sealed under the effect of freezing, thereby realize preventing the phenomenon of air invasion, the allochroic silica gel granule can indicate the user after meeting water and discolouring.

Furthermore, the wrapping bag body adopts anti-oxidant transparent plastic to make, the time delay semicircle ring adopts waterproof transparent material to make, and wrapping bag body and time delay semicircle ring are transparent, can follow the inside condition of external real-time observation to in time judge the gas leakage condition.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) This scheme can be through improving the strip opening to current wrapping bag, in case the gas leakage phenomenon appears in the strip opening, the oxygen in the air can be absorbed to the multiple-effect sealing strip that the strip opening was inlayed, the spontaneous heating reaction of the inside triggering of accuse magnetism box wherein, then heat softening carries out arranging again of magnetic screen, the magnet strip can carry out magnetic adsorption to inboard triggering magnetic ball this moment, force it to puncture retaining hemisphere absorption moisture, then carry to on the predetermined time delay semicircle ring, the ring of congealing ice that corresponds the position absorbs water moisture and begins to dissolve, and absorb a large amount of heats and force moisture to freeze along the edge of time delay semicircle ring, thereby realize the ice seal to gas leakage region, can prevent oxygen on the one hand and continue the invasion, on the other hand can neutralize the accuse magnetism box temperature interference that generates heat and bring, effectively improve the anti-oxidation effect of wrapping bag.

(2) Magnetism control box includes the box body and inlays the phase change obturator of connecting in the box body, inlay in the phase change obturator and be connected with the magnetic screen piece of multi-disc crisscross distribution, a plurality of evenly distributed's suction port has been seted up on the box body surface, the in-connection has waterproof ventilated membrane in the suction port, be connected with elasticity between waterproof ventilated membrane and the magnetic screen piece and act as go-between, the space both can be practiced thrift to magnetic screen piece crisscross distribution under the normal condition, can mutually support simultaneously and form complete magnetic shielding effect to the magnet strip, when the gas leakage phenomenon appears in the strip opening, the air passes through the suction port and at first enters into the magnetism control box, the phase change obturator reacts with the oxygen in the air and carries out spontaneous heating, force it to soften after heating the phase change obturator, then the magnetic screen piece carries out migration redistribution under the pulling force effect of elasticity act as go-between, leak appears between the magnetic screen piece each other, the partial magnetic field of magnet strip can act on and trigger the magnetic sphere, thereby begin to trigger self-sealing action.

(3) The surface area of magnetism shielding piece accounts for the half of magnet strip surface area, and the tensile distance that elasticity was acted as go-between is greater than the width of magnetism shielding piece, can guarantee under the normal condition magnetism shielding piece and realize complete magnetism shielding effect to the magnet strip, avoids the magnetic field of magnet strip to disturb in advance to trigger the magnetic ball, and the phase transition obturator softens back elasticity and acts as go-between and also can fully pull open magnetism shielding piece and spill the space, supplies the partial magnetic field of magnet strip to pass through.

(4) The phase change filling body adopts hot melt material to make porous structure, and the phase change filling body intussuseption is filled with self-heating material, and self-heating material can take place oxidation reaction with the oxygen in the air to release heat, porous structure's phase change filling body had both satisfied the requirement of ventilating, can soften fast under the heating state simultaneously, thereby improve the promptness of self sealss action.

(5) The retaining hemisphere is including the hemisphere and the barrier film that absorb water, and the barrier film covers in the surface of the hemisphere that absorbs water, and the hemisphere that absorbs water and trigger the magnetic ball phase-match, and the barrier film plays the isolation to triggering the magnetic ball under the normal condition, avoids triggering the magnetic ball and contacts the hemisphere that absorbs water and absorb moisture in advance by mistake, absorbs water the hemisphere in addition and trigger the magnetic ball phase-match and can be under the extrusion that receives the hemisphere that absorbs water, fully carry out the contact and absorb a large amount of moisture.

(6) Trigger the magnetic ball including fixed hemisphere, change water hemisphere and magnetism contact pilotage, fixed hemisphere and the symmetrical connection between the water hemisphere of commentaries on classics, magnetism contact pilotage is connected with fixed hemisphere, and magnetism contact pilotage runs through and changes water hemisphere and extend to its outside, when magnetism contact pilotage receives the magnetic adsorption of magnet strip and acts on, the contact is and punctures the barrier film and then with the hemisphere contact that absorbs water, the hemisphere that absorbs water receives to release moisture after the extrusion, and only can follow the release of the drill way department of puncturing on the barrier film, can effectively avoid moisture to flow in a large number and permeate to the inside infringement of food that causes of wrapping bag body.

(7) The bidirectional stay wire and the water rotating hemisphere are made of inelastic water absorbing materials, the bidirectional stay wire penetrates through the fixed hemisphere and extends to the inner side of the water rotating hemisphere, the inelastic materials can improve the stability of sealing action, and failure caused by interference is not prone to occurring.

(8) The ice-condensing ring is made of saltpeter, and the ice-condensing ring is internally inlaid with a plurality of allochroic silica gel particles, and the saltpeter can absorb a large amount of heat when being dissolved in water and can cause icing, so that a pair of time-delay semicircular rings are forced to be combined and sealed under the icing effect, thereby preventing the air invasion phenomenon, and the allochroic silica gel particles can prompt a user after changing color when meeting water.

(9) The packaging bag body is made of anti-oxidation transparent plastic, the time-delay semicircular ring is made of waterproof transparent materials, and the packaging bag body and the time-delay semicircular ring are transparent and can observe the internal situation in real time from the outside, so that the air leakage situation can be judged in time.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view showing the construction of the multi-effect sealing strip portion of the present invention;

FIG. 5 is a schematic view of the structure at B in FIG. 4;

fig. 6 is a cross-sectional view of a trigger magnetic ball of the present invention.

The reference numbers in the figures illustrate:

the packaging bag comprises a packaging bag body 1, a strip-shaped opening 2, a time-delay semicircular ring 3, a bidirectional pull wire 4, a multi-effect sealing strip 5, a sealing strip body 51, a magnet strip 52, a water-absorbing hemisphere 53, a separation film 54, an elastic pull wire 55, a magnetic shielding sheet 56, a waterproof breathable film 57, a phase-change filling body 58, a trigger magnetic sphere 6, a fixed hemisphere 61, a water-turning hemisphere 62, a magnetic contact pin 63 and a ice-condensing ring 7.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, a gas leakage self-sealing type anti-oxidation packaging bag comprises a packaging bag body 1, wherein one end of the packaging bag body 1 is provided with a strip-shaped opening 2, the inner end of the strip-shaped opening 2 is inlaid and connected with a multi-effect sealing strip 5 which is matched with the inner end of the strip-shaped opening, the upper side and the lower side of the inner end of the packaging bag body 1 are respectively connected with a plurality of evenly distributed delay semicircular rings 3, the delay semicircular rings 3 are connected with the inner end wall of the multi-effect sealing strip 5, and the inner sides of the delay semicircular rings 3 are provided with a plurality of evenly distributed trigger magnetic balls 6.

Referring to fig. 4-5, one end of each of a pair of vertically corresponding delay semicircular rings 3, which is close to each other, is embedded and connected with an ice-condensing ring 7, a bidirectional stay wire 4 is connected between the ice-condensing ring 7 and the multi-effect sealing strip 5, the multi-effect sealing strip 5 sequentially comprises a sealing strip body 51, a magnet strip 52, a magnetism control box and a water storage hemisphere from outside to inside, the magnet strip 52 is embedded and connected with the outer end of the sealing strip body 51, the magnetism control box is embedded and connected with the middle part of the sealing strip body 51, the water storage hemisphere is embedded and connected with the inner end of the sealing strip body 51, and the water storage hemisphere is matched with the trigger magnetic ball 6.

The magnetic control box comprises a box body and a phase-change filling body 58 connected in the box body in an embedded mode, a plurality of magnetic shielding sheets 56 distributed in a staggered mode are connected in the phase-change filling body 58 in an embedded mode, a plurality of air suction holes distributed uniformly are formed in the surface of the box body, a waterproof breathable film 57 is connected in the air suction holes, an elastic pull wire 55 is connected between the waterproof breathable film 57 and the magnetic shielding sheets 56, the magnetic shielding sheets 56 in the staggered mode can save space in a normal state, meanwhile, the magnetic shielding sheets can be matched with each other to form a complete magnetic shielding effect on the magnet strip 52, when the strip-shaped opening 2 leaks, air firstly enters the magnetic control box through the air suction holes, the phase-change filling body 58 reacts with oxygen in the air to conduct spontaneous heating, the phase-change filling body 58 is heated and then is forced to be softened, then the magnetic shielding sheets 56 are subjected to migration redistribution under the tensile force of the elastic pull wire 55, leaks occur among the magnetic shielding sheets 56, part of magnetic fields of the magnet strip 52 can act on triggering of the magnetic ball 6, and self-sealing action is started.

The magnetic shield piece 56 is made of a high magnetic permeability material, the elastic pull wire 55 is made of an elastic material, and the elastic pull wire 55 is in a stretched state.

The surface area of magnetic shield piece 56 accounts for the half of magnet strip 52 surface area, and the tensile distance of elasticity stay wire 55 is greater than the width of magnetic shield piece 56, can guarantee that magnetic shield piece 56 realizes complete magnetic shielding effect to magnet strip 52 under the normal condition, avoids magnet strip 52's magnetic field to disturb in advance to trigger magnetic ball 6, and elasticity stay wire 55 also can fully pull open magnetic shield piece 56 and leak the space after phase transition obturator 58 softens, supplies the partial magnetic field of magnet strip 52 to pass through.

The phase change filling body 58 is made into a porous structure by adopting a hot melt material, and the phase change filling body 58 is filled with a self-heating material which can be oxidized with oxygen in the air so as to release heat, so that the phase change filling body 58 of the porous structure can meet the requirement of ventilation and can be rapidly softened in a heating state so as to improve the timeliness of self-sealing action.

Further, retaining hemisphere is including absorbing water hemisphere 53 and barrier film 54, and barrier film 54 covers the surface that absorbs water hemisphere 53, and absorbs water hemisphere 53 and trigger magnetic ball 6 phase-match, and barrier film 54 plays the isolation to triggering magnetic ball 6 under the normal condition, avoids triggering magnetic ball 6 and contacts absorbing water hemisphere 53 and absorb moisture by mistake in advance, absorbs water hemisphere 53 in addition and trigger magnetic ball 6 phase-match can be under the extrusion that receives absorbing water hemisphere 53, fully carry out the contact and absorb a large amount of moisture.

Referring to fig. 6, the trigger magnetic ball 6 includes a fixed hemisphere 61, a water-transferring hemisphere 62 and a magnetic contact pin 63, the fixed hemisphere 61 and the water-transferring hemisphere 62 are symmetrically connected, the magnetic contact pin 63 is connected to the fixed hemisphere 61, and the magnetic contact pin 63 penetrates through the water-transferring hemisphere 62 and extends to the outside thereof, when the magnetic contact pin 63 is magnetically adsorbed by the magnet strip 52, the magnetic contact pin contacts and pierces the isolation film 54 to contact the water-absorbing hemisphere 53, the water-absorbing hemisphere 53 releases water after being squeezed, and can only release water from the punctured hole of the isolation film 54, so that the water can be effectively prevented from flowing out in a large amount and penetrating into the packaging bag body 1 to damage food.

The bidirectional stay wire 4 and the water rotating hemisphere 62 are made of inelastic water absorbing materials, the bidirectional stay wire 4 penetrates through the fixed hemisphere 61 and extends to the inner side of the water rotating hemisphere 62, the inelastic materials can improve the stability of sealing action, and failure caused by interference is not prone to occurring.

Congeal ice ring 7 and adopt the saltpeter to make, and inlay in the congealing ice ring 7 and be connected with a plurality of allochroic silica gel particles, the saltpeter can absorb a large amount of heats and lead to freezing when dissolving in water to force a pair of time delay semicircle ring 3 to combine sealed under the effect of freezing, thereby realize preventing the phenomenon of air invasion, the allochroic silica gel particle can indicate the user after meeting water and discolour.

The packaging bag body 1 is made of anti-oxidation transparent plastic, the time-delay semicircular ring 3 is made of waterproof transparent materials, the packaging bag body 1 and the time-delay semicircular ring 3 are transparent, and the internal condition can be observed in real time from the outside, so that the air leakage condition can be judged in time.

According to the invention, the strip-shaped opening 2 of the existing packaging bag can be improved, once the strip-shaped opening 2 leaks air, the multi-effect sealing strip 5 inlaid in the strip-shaped opening 2 can absorb oxygen in the air, the self-heating reaction is triggered inside the magnetic control box, then the magnetic control box is heated and softened to conduct magnetic shielding rearrangement, at the moment, the magnet strip 52 can conduct magnetic adsorption on the triggering magnetic ball 6 on the inner side to force the triggering magnetic ball to puncture the water storage hemisphere to absorb water, then the water is conveyed to the preset time-delay semicircular ring 3, the water-absorbing water of the ice-condensation ring 7 at the corresponding position begins to dissolve, a large amount of heat is absorbed to force the water to freeze along the edge of the time-delay semicircular ring 3, and therefore, the ice sealing of an air leakage area is realized, on one hand, the oxygen can be prevented from continuously invading, on the other hand, the temperature interference caused by the heating of the magnetic control box can be neutralized, and the anti-oxidation effect of the packaging bag is effectively improved.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an anti-oxidation wrapping bag of gas leakage self-sealing formula, includes wrapping bag body (1), strip opening (2), its characterized in that have been seted up to wrapping bag body (1) one end: the inner end of the strip-shaped opening (2) is inlaid and connected with a matched multi-effect sealing strip (5), the upper side and the lower side of the inner end of the packaging bag body (1) are respectively connected with a plurality of uniformly distributed delay semicircular rings (3), the delay semicircular rings (3) are connected with the inner end wall of the multi-effect sealing strip (5), the inner sides of the delay semicircular rings (3) are provided with a plurality of uniformly distributed trigger magnetic balls (6), one pair of vertically corresponding delay semicircular rings (3) are mutually close to one end and are all inlaid and connected with an ice condensing ring (7), a bidirectional stay wire (4) is connected between the ice condensing ring (7) and the multi-effect sealing strip (5), the multi-effect sealing strip (5) sequentially comprises a sealing strip body (51), a magnet strip (52), a magnetic control box and a water storage hemisphere from outside to inside, the magnet strip (52) is inlaid and connected with the outer end of the sealing strip body (51), the magnetic control box is inlaid and connected with the middle part of the sealing strip body (51), the water storage hemisphere is connected with the inner end of the embedded sealing strip body (51), and the trigger magnetic ball (6) is matched with the trigger magnetic ball;

the magnetic control box comprises a box body and a phase change filling body (58) which is embedded and connected in the box body, wherein a plurality of magnetic shielding sheets (56) which are distributed in a staggered mode are embedded and connected in the phase change filling body (58), a plurality of uniformly distributed air suction holes are formed in the surface of the box body, waterproof breathable films (57) are connected in the air suction holes, and elastic pull wires (55) are connected between the waterproof breathable films (57) and the magnetic shielding sheets (56); the phase change filling body (58) is made into a porous structure by adopting a hot melt material, and a self-heating material is filled in the phase change filling body (58);

trigger magnetic ball (6) including fixed hemisphere (61), commentaries on classics water hemisphere (62) and magnetism contact pin (63), fixed hemisphere (61) with change the symmetrical connection between the water hemisphere (62), magnetism contact pin (63) are connected with fixed hemisphere (61), and magnetism contact pin (63) run through change water hemisphere (62) and extend to its outside.

2. A gas-leakage self-sealing type oxidation preventing packaging bag according to claim 1, wherein: the magnetic shielding sheet (56) is made of a high-permeability material, the elastic pull wire (55) is made of an elastic material, and the elastic pull wire (55) is in a stretching state.

3. A gas-leakage self-sealing type oxidation preventing packaging bag according to claim 2, wherein: the surface area of the magnetic shielding sheet (56) accounts for one half of the surface area of the magnet strip (52), and the stretching distance of the elastic pull wire (55) is larger than the width of the magnetic shielding sheet (56).

4. A gas-leakage self-sealing type anti-oxidation packaging bag according to claim 1, characterized in that: the water storage hemisphere comprises a water absorption hemisphere (53) and an isolation film (54), the isolation film (54) covers the outer surface of the water absorption hemisphere (53), and the water absorption hemisphere (53) is matched with the trigger magnetic ball (6).

5. A gas-leakage self-sealing type oxidation preventing packaging bag according to claim 1, wherein: the bidirectional stay wire (4) and the water transferring hemisphere (62) are made of inelastic water absorbing materials, and the bidirectional stay wire (4) penetrates through the fixed hemisphere (61) and extends to the inner side of the water transferring hemisphere (62).

6. A gas-leakage self-sealing type oxidation preventing packaging bag according to claim 1, wherein: the ice condensing ring (7) is made of saltpeter, and a plurality of allochroic silica gel particles are embedded and connected in the ice condensing ring (7).

7. A gas-leakage self-sealing type oxidation preventing packaging bag according to claim 6, wherein: the packaging bag body (1) is made of anti-oxidation transparent plastic, and the time-delay semicircular ring (3) is made of waterproof transparent material.