阅读说明：本技术 一种液充磁封式拉链纸箱 (Liquid magnetizing sealing type zipper carton ) 是由 高中怀 于 2021-05-24 设计创作，主要内容包括：本发明公开了一种液充磁封式拉链纸箱,属于纸箱技术领域,本发明可以通过对中空拉条进行结构创新,通过按压液囊填充液体的方式,迫使液压磁囊内部的磁场发生变化,初始状态下,液压磁囊内磁场可以正常作用于延伸磁杆,通过磁性排斥的方式迫使延伸磁杆挤压链齿套形变进行延伸,从而与盖板上的链齿槽进行配合,实现对箱体的高强度密封,此时中空拉条难以直接拉开,在开封时通过挤压按压液囊的方式,液体通过中空拉条填充至液压磁囊内,迫使液压磁囊内的磁场受到一定程度的屏蔽,从而减弱对延伸磁杆的排斥作用力,然后延伸磁杆在弹力作用下回缩并移出链齿槽,此时可以正常拉开中空拉条进行开封,并且在再次包装时进行相反的操作即可实现。(The invention discloses a liquid magnetizing sealed zipper paper box, which belongs to the technical field of paper boxes, and can be characterized in that a hollow brace is innovated in structure, a magnetic field in a hydraulic magnetic bag is forced to change by a mode of pressing a liquid bag to fill liquid, the magnetic field in the hydraulic magnetic bag can normally act on an extension magnetic rod in an initial state, the extension magnetic rod is forced to extrude a sprocket sleeve to deform and extend by a magnetic repulsion mode, so that the extension magnetic rod is matched with a sprocket groove on a cover plate to realize high-strength sealing of a box body, the hollow brace is difficult to directly pull open at the moment, the liquid is filled into the hydraulic magnetic bag by the hollow brace by a mode of extruding the pressing liquid bag when unsealing, the magnetic field in the hydraulic magnetic bag is forced to be shielded to a certain degree, so that the repulsive force to the extension magnetic rod is weakened, then the extension magnetic rod retracts under the action of elasticity and moves out of the sprocket groove, the hollow pull strip can be normally pulled open for unsealing, and the reverse operation can be performed when repackaging.)

1. The utility model provides a liquid magnetization seals formula zip fastener carton, includes box (1), its characterized in that: the utility model discloses a hydraulic pressure magnetic energy storage box, including box (1), cover plate (2), it is connected with a pair of symmetric distribution to rotate box (1) upper end, it is a pair of be inserted between cover plate (2) and be equipped with assorted cavity brace (3), both ends all are connected with sprocket cover (5) about cavity brace (3), and are a pair of apron (2) are close to one end each other and all offer with sprocket cover (5) assorted sprocket groove, and sprocket cover (5) extend to the sprocket groove in, both ends still are connected with a plurality of evenly distributed's hydraulic pressure magnetic capsule (7) about cavity brace (3), and hydraulic pressure magnetic capsule (7) are located sprocket cover (5) inboard, cavity brace (3) one end is kept away from in hydraulic pressure magnetic capsule (7) is connected with and extends magnet pole (6), cavity brace (3) one end is connected with presses liquid bag (4), and presses liquid bag (4) and cavity brace (3) intercommunication each other.

2. The liquid filled, magnetic sealed zipper carton of claim 1, wherein: deionized water or oil is filled in the hollow brace (3) and the pressing liquid bag (4).

3. The liquid filled, magnetic sealed zipper carton of claim 1, wherein: the hydraulic magnetic bag (7) comprises an outer shaping shell (71), an inner sunken film (72) and a plurality of elastic drawn wires (73), the outer shaping shell (71) is connected to the hollow brace (3), the inner sunken film (72) is connected to one end, far away from the hollow brace (3), of the outer shaping shell (71) in an embedded mode, the inner sunken film (72) is connected with the extending magnetic rod (6) in an aligned mode, and the elastic drawn wires (73) are connected between the inner sunken film (72) and the hollow brace (3).

4. The liquid filled, magnetic sealed zipper carton of claim 3, wherein: outer shape shell (71) inboard is equipped with and extends magnetism pole (6) magnetism repellent's magnetism and repels inner core (8), and magnetism repels inner core (8) and is connected with cavity brace (3), magnetism repels inner core (8) outer end and covers and have shielding hollow layer (10), inlay on shielding hollow layer (10) and be connected with a plurality of evenly distributed's fault ball (9), set up a plurality of and shielding hollow layer (10) corresponding flowing liquid hole on magnetism repellent inner core (8), and flow liquid hole and shielding hollow layer (10) intercommunication each other.

5. The liquid filled, magnetic sealed zipper carton of claim 4, wherein: the shielding hollow layer (10) is made of elastic materials, and a plurality of magnetic conduction balls are filled in the shielding hollow layer (10).

6. The liquid filled, magnetic sealed zipper carton of claim 5, wherein: the magnetic conduction ball is made of a high-magnetic-permeability material and is stacked in a double-layer mode.

7. The liquid filled, magnetic sealed zipper carton of claim 5, wherein: the diameter ratio of the magnetic conduction ball to the fault ball (9) is 1:3-6, and the shielding hollow layer (10) is in an elastic stretching state.

8. The liquid filled, magnetic sealed zipper carton of claim 4, wherein: fault ball (9) prop silk (93) including outer protection hemisphere (91), interior pressure hemisphere (92) and many elasticity, outer protection hemisphere (91) and interior pressure hemisphere (92) symmetric connection, outer protection hemisphere (91) are connected in shielding hollow layer (10) outer end, and interior pressure hemisphere (92) are to shielding hollow layer (10) inboard extrusion extension, elasticity props silk (93) evenly connected between outer protection hemisphere (91) and interior pressure hemisphere (92).

9. The liquid filled, magnetic sealed zipper carton of claim 8, wherein: the inner pressure hemisphere (92) is further connected with a plurality of surface pressing plates (94) corresponding to the elastic supporting wires (93), one end, close to the elastic supporting wires (93), of each surface pressing plate (94) is connected with a force limiting sleeve (95), and the elastic supporting wires (93) penetrate through the force limiting sleeves (95) to be vertically connected with the surface pressing plates (94).

10. The liquid filled, magnetic sealed zipper carton of claim 9, wherein: the outer protection hemisphere (91), the surface pressing sheet (94) and the force limiting sleeve (95) are all made of hard materials, and the inner pressure hemisphere (92) and the elastic supporting wire (93) are all made of elastic materials.

Technical Field

The invention relates to the technical field of cartons, in particular to a liquid-magnetized and sealed zipper carton.

Background

Carton: the packaging material is the most widely used packaging product, and corrugated paper boxes, single-layer cardboard boxes and the like are available according to different materials, and the packaging material has various specifications and models.

The paper box is commonly used for three layers and five layers, seven layers are used less, each layer is divided into lining paper, corrugated paper, core paper and face paper, the lining paper and the face paper are provided with tea board paper and kraft paper, the corrugated paper for the core paper has different colors and handfeel, and the paper (colors and handfeel) produced by different manufacturers is different.

Wherein the zip fastener carton is a new packing form, and it has user experience of promotion, improves characteristics such as packing efficiency, reuse, environmental protection more, only need pull open when opening the packing can.

But current zip fastener carton on the one hand packing intensity is not enough, the phenomenon of unexpected kaifeng appears easily, and another light emitting area zip fastener carton is difficult to direct recycle after unzipping the zip fastener, needs carry out certain processing and can continue to use, very big restriction zip fastener carton's used repeatedly efficiency.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a liquid magnetizing and sealing type zipper paper box which can force the magnetic field in a hydraulic magnetic bag to change by innovating the structure of a hollow brace and forcing the magnetic field in the hydraulic magnetic bag to normally act on an extension magnetic rod in an initial state by pressing the liquid bag to fill liquid, force the extension magnetic rod to extrude a sprocket sleeve to deform and extend by a magnetic repulsion mode so as to be matched with a sprocket groove on a cover plate to realize high-strength sealing of a box body, the hollow brace is difficult to directly pull open at the moment, liquid is filled into the hydraulic magnetic bag by the hollow brace by pressing the liquid bag in unsealing, the magnetic field in the hydraulic magnetic bag is forced to be shielded to a certain degree by the hollow brace so as to weaken the repulsion acting force on the extension magnetic rod, and then the extension magnetic rod retracts and moves out of the sprocket groove under the action of elasticity, at the moment, the hollow brace can be normally pulled open for unsealing, and reverse operation can be carried out when the carton is packaged again.

2. Technical scheme

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

The utility model provides a liquid magnetization seals formula zip fastener carton, includes the box, the box upper end is rotated and is connected with the apron of a pair of symmetric distribution, and is a pair of insert between the apron and be equipped with assorted cavity brace, both ends all are connected with the sprocket cover about the cavity brace, and are a pair of the apron is close to one end each other and all sets up the sprocket groove that matches with the sprocket cover, and the sprocket cover extends to in the sprocket groove, both ends still are connected with a plurality of evenly distributed's hydraulic pressure magnetic cell about the cavity brace, and the hydraulic pressure magnetic cell is located sprocket cover inboard, the hydraulic pressure magnetic cell is kept away from cavity brace one end and is connected with the extension magnetic pole, cavity brace one end is connected with presses the liquid bag, and presses liquid bag and cavity brace and communicates each other.

Furthermore, deionized water or oil is filled in the hollow brace and the pressing liquid bag, and compared with gas, the water and the oil in the liquid are not easy to compress, so that the filling effect can be greatly improved.

Furthermore, the hydraulic magnetic capsule comprises an outer shaping shell, an inner sunken film and a plurality of elastic drawn wires, the outer shaping shell is connected to the hollow draw bar, the inner sunken film is connected to one end, far away from the hollow draw bar, of the outer shaping shell in an embedded mode, the inner sunken film is connected with the extension magnetic rod in an aligned mode, the elastic drawn wires are connected between the inner sunken film and the hollow draw bar, the outer shaping shell plays a supporting role, after original magnetic repulsive force is lost, the extension magnetic rod can extrude the inner sunken film to retract towards the inner side of the outer shaping shell under the elastic force of the elastic drawn wires, and therefore the hollow draw bar can be conveniently pulled away from the sprocket grooves temporarily.

Further, the setting shell inboard is equipped with and extends the magnetic repulsion inner core that magnetic pole magnetism repulses mutually, and magnetism repulses the inner core and is connected with the cavity brace, magnetism repels the inner core outer end and covers and have the shielding hollow layer, inlay the fault ball that is connected with a plurality of evenly distributed on the shielding hollow layer, set up a plurality ofly on the magnetism repulses the inner core and shield the corresponding flowing liquid hole of hollow layer, and flowing liquid hole and shielding hollow layer intercommunication each other, fault ball extrusion shielding hollow layer appears the interrupt phenomenon under the normal condition to the partial magnetic field of magnetism repulses the inner core still can act on and reject on extending the magnetic pole, and it is sunken to extrude fault ball deformation after liquid is filled into shielding hollow layer, and shielding hollow layer just can redistribute the realization in succession this moment, improves the magnetic field shielding effect of repulsing the inner core to magnetism, extends the magnetic pole and can retract under the effect of dragging of wire drawing elasticity this moment.

Furthermore, the shielding hollow layer is made of elastic materials, a plurality of magnetic conduction balls are filled in the shielding hollow layer, the fault balls are sunken after being extruded by liquid, the shielding hollow layer extrudes the magnetic conduction balls to be redistributed under the action of elasticity, and the spherical structures of the magnetic conduction balls are easier to migrate and redistribute after being extruded.

Furthermore, the magnetic conduction balls are made of high-permeability materials and are stacked in a double-layer mode, the double-layer stacked magnetic conduction balls can ensure that the interruption area is covered in redistribution, meanwhile, stress is simple, redistribution is easily achieved under the elastic extrusion action of the shielding hollow layer, the stress is complex when the number of layers is larger, the redistribution effect is poor, and the probability of effectively covering the interruption area is reduced, so that magnetic field shielding failure is caused.

Furthermore, the diameter ratio of the magnetic conduction ball to the fault ball is 1:3-6, the shielding hollow layer is in an elastic stretching state, the proper diameter ratio can ensure that the magnetic conduction ball has a good shielding effect when being redistributed, and the magnetic conduction ball is easy to extrude to reset after the fault ball recovers the shape, the resetting is difficult due to the fact that the diameter of the magnetic conduction ball is too small, and the covering effect on a fault area is reduced due to the fact that the diameter of the magnetic conduction ball is too large.

Further, the fault ball props the silk including outer protection hemisphere, interior pressure hemisphere and many elasticity, outer protection hemisphere and interior pressure hemisphere symmetric connection, outer protection hemisphere is connected in shielding cavity layer outer end, and presses the hemisphere to the inboard extrusion extension of shielding cavity layer in, elasticity props the silk evenly connected between outer protection hemisphere and interior pressure hemisphere, presses hemisphere compression elasticity to prop the silk and to go on sunkenly to outer protection hemisphere inboard when receiving the packing of liquid, loses behind the squeezing action of the hemisphere of pressing in, and the shielding cavity layer just can extrude the magnetic conduction ball and carry out the redistribution to the depressed part that gets into interior pressure hemisphere covers, presses the in-process extrusion of hemisphere recovery shape to lead the magnetic ball to reset after the liquid backward flow.

Further, still be connected with the polylith on the interior pressure hemisphere and elasticity and prop the face pressure plate that the silk corresponds, the face pressure plate is close to elasticity and props silk one end and be connected with the limit force cover, and elasticity props the silk and runs through the limit force cover and be connected with face pressure plate is perpendicular, and the face pressure plate can improve the extrusion effect to the magnetic conduction ball, reduces the resistance when the magnetic conduction ball resets, and limit force cover can prescribe a limit to the elasticity direction that elasticity propped the silk simultaneously, guarantees to press the hemisphere to extrude the magnetic conduction ball to region around with the gesture that the sphere expanded in to guarantee the reset effect of magnetic conduction ball, and the extrusion force that is difficult for appearing the abnormal leads to the magnetic conduction ball to be difficult to reset.

Furthermore, the outer protective hemisphere, the surface pressing sheet and the force limiting sleeve are all made of hard materials, and the inner pressure hemisphere and the elastic supporting wire are all made of elastic materials.

3. Advantageous effects

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

(1) the scheme can be realized by carrying out structural innovation on the hollow brace, forcing the magnetic field inside the hydraulic magnetic capsule to change by pressing the liquid bag to be filled with liquid, enabling the magnetic field in the hydraulic magnetic capsule to normally act on the extension magnetic rod in an initial state, forcing the extension magnetic rod to extrude the sprocket sleeve to deform and extend by means of magnetic repulsion, so as to be matched with the sprocket groove on the cover plate to realize high-strength sealing of the box body, at the moment, the hollow brace is difficult to directly pull open, liquid is filled into the hydraulic magnetic capsule by the hollow brace by means of extruding the pressing liquid bag when unsealing, forcing the magnetic field in the hydraulic magnetic capsule to be shielded to a certain degree, so as to weaken the repulsive force on the extension magnetic rod, then the extension magnetic rod retracts under the action of elasticity and moves out of the sprocket groove, at the moment, the hollow brace can be normally pulled open to unseal, and opposite operation can be realized when repackaging, compared with the existing zipper paper box, the zipper paper box has good packaging strength, and can be directly and effectively reused.

(2) The hollow brace and the pressing liquid bag are filled with deionized water or oil, and compared with gas, the water and oil of the liquid are not easy to compress, so that the filling effect can be greatly improved.

(3) The hydraulic magnetic capsule comprises an outer shaping shell, an inner sunken film and a plurality of elastic drawn wires, wherein the outer shaping shell is connected onto the hollow drawn wires, the inner sunken film is embedded and connected to one end, far away from the hollow drawn wires, of the outer shaping shell, the inner sunken film is connected with the extension magnetic rods in an aligned mode, the elastic drawn wires are connected between the inner sunken film and the hollow drawn wires, the outer shaping shell plays a supporting role, after original magnetic repulsive force is lost, the extension magnetic rods can extrude the inner sunken film to retract towards the inner side of the outer shaping shell under the elastic force of the elastic drawn wires, and therefore the hollow drawn wires can be pulled open conveniently due to the fact that tooth spaces are temporarily left.

(4) The outer shaping shell inboard is equipped with and extends the interior core that repels of magnetic pole magnetism, and magnetism repels the interior core and is connected with the cavity brace, magnetism repels the interior core outer end and covers and has shielded the hollow layer, inlay on the shielding hollow layer and be connected with a plurality of evenly distributed's fault ball, magnetism repels and sets up a plurality of and shields the corresponding flowing liquid hole of hollow layer on the interior core, and flowing liquid hole and shielding hollow layer intercommunication each other, fault ball extrusion shielding hollow layer appears the interrupt phenomenon under the normal condition, thereby magnetism repels partial magnetic field of interior core still can act on and is repelled on extending the magnetic pole, it is sunken to extrude fault ball deformation after liquid fills shielding hollow layer, shielding hollow layer just can redistribute the realization in succession this moment, improve the magnetic field shielding effect to magnetism repels the interior core, it can retract under the pulling effect of elasticity wire drawing this moment to extend the magnetic pole.

(5) The shielding hollow layer is made of elastic materials, the shielding hollow layer is filled with the magnetic conduction balls, the fault balls are sunken after being extruded by liquid, the shielding hollow layer extrudes the magnetic conduction balls under the action of elasticity to be redistributed, and the spherical structures of the magnetic conduction balls are easier to migrate after being extruded to be redistributed.

(6) The magnetic conduction balls are made of high-permeability materials and are stacked in a double-layer mode, the double-layer stacked magnetic conduction balls can ensure that the interruption area is covered in redistribution, meanwhile, stress is simple, redistribution is easily achieved under the elastic extrusion effect of the shielding hollow layer, the more the layers are, the more the stress is, the worse the redistribution effect is, and the probability of effectively covering the interruption area is reduced, so that magnetic field shielding failure is caused.

(7) The diameter ratio of the magnetic conduction ball to the fault ball is 1:3-6, the shielding hollow layer is in an elastic stretching state, the proper diameter ratio can ensure that the magnetic conduction ball has a good shielding effect when being redistributed, and the magnetic conduction ball is easy to extrude to reset after the fault ball recovers the shape, the resetting is difficult due to the fact that the diameter of the magnetic conduction ball is too small, and the covering effect of the fault area is reduced due to the fact that the diameter of the magnetic conduction ball is too large.

(8) The fault ball includes outer protection hemisphere, interior pressure hemisphere and many elasticity prop the silk, outer protection hemisphere and interior pressure hemisphere symmetric connection, outer protection hemisphere is connected in shielding hollow layer outer end, and interior pressure hemisphere extends to shielding hollow layer inboard extrusion, elasticity props the silk evenly connected between outer protection hemisphere and interior pressure hemisphere, interior pressure hemisphere compression elasticity props the silk and outwards protects the hemisphere inboard and cave in when receiving the packing of liquid, lose behind the squeezing action of interior pressure hemisphere, shielding hollow layer just can extrude the magnetic conduction ball and carry out the redistribution, thereby the depressed part that gets into interior pressure hemisphere covers, the in-process extrusion of interior pressure hemisphere recovery shape leads the magnetic ball to reset after the liquid backward flow.

(9) Still be connected with the polylith on the interior pressure hemisphere and elasticity prop the face pressure plate that the silk corresponds, the face pressure plate is close to elasticity and props silk one end and be connected with the limit force cover, and elasticity props the silk and runs through limit force cover and face pressure plate and be connected perpendicularly, the face pressure plate can improve the extrusion effect to the magnetic conduction ball, resistance when reducing the magnetic conduction ball and reseing, limit force cover can prescribe a limit to the elasticity direction of elasticity that the silk was propped to elasticity simultaneously, the hemisphere extrudees the magnetic conduction ball to region around with the gesture that the sphere expanded in the assurance, thereby guarantee the reset effect of magnetic conduction ball, the unusual extrusion force of difficult appearance leads to the magnetic conduction ball to be difficult to reset.

Drawings

FIG. 1 is a schematic external view of the present invention;

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

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

FIG. 4 is a schematic structural diagram of a hydraulic magnetic capsule of the present invention;

FIG. 5 is a cross-sectional view of the shielding hollow layer of the present invention before and after the change;

FIG. 6 is a schematic diagram of a structure of a fault sphere of the present invention;

fig. 7 is a schematic view of the structure at B in fig. 6.

The reference numbers in the figures illustrate:

the device comprises a box body 1, a cover plate 2, a hollow brace 3, a pressing liquid bag 4, a sprocket sleeve 5, an extending magnetic rod 6, a hydraulic magnetic bag 7, an outer shaping shell 71, an inner sunken film 72, an elastic drawing wire 73, an inner magnetic repulsion core 8, a fault sphere 9, an outer protective hemisphere 91, an inner pressure hemisphere 92, an elastic supporting wire 93, a pressing sheet 94, a force limiting sleeve 95 and a shielding hollow layer 10.

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 liquid magnetizing sealed zipper carton comprises a box body 1, a pair of symmetrically distributed cover plates 2 is rotatably connected to the upper end of the box body 1, matched hollow braces 3 are inserted between the pair of cover plates 2, sprocket sleeves 5 are connected to the left and right ends of the hollow braces 3, sprocket grooves matched with the sprocket sleeves 5 are formed in the ends, close to one ends of the pair of cover plates 2, the sprocket sleeves 5 extend into the sprocket grooves, a plurality of uniformly distributed hydraulic magnetic capsules 7 are further connected to the left and right ends of the hollow braces 3, the hydraulic magnetic capsules 7 are located on the inner sides of the sprocket sleeves 5, one ends, far away from the hollow braces 3, of the hydraulic magnetic capsules 7 are connected with extension magnetic rods 6, one ends of the hollow braces 3 are connected with pressing liquid capsules 4, and the pressing liquid capsules 4 are communicated with the hollow braces 3.

Both the hollow brace 3 and the pressing liquid bag 4 are filled with deionized water or oil, and compared with gas, the water and oil of the liquid are not easy to compress, so that the filling effect can be greatly improved.

Referring to fig. 4, the hydraulic magnetic capsule 7 includes an outer shaped shell 71, an inner concave film 72 and a plurality of elastic pull wires 73, the outer shaped shell 71 is connected to the hollow pull strip 3, the inner concave film 72 is connected to one end of the outer shaped shell 71 away from the hollow pull strip 3 in an embedded manner, the inner concave film 72 is connected to the extension magnetic rod 6 in an aligned manner, the elastic pull wires 73 are connected between the inner concave film 72 and the hollow pull strip 3, the outer shaped shell 71 plays a supporting role, after the original magnetic repulsive force is lost, the extension magnetic rod 6 can press the inner concave film 72 to retract towards the inner side of the outer shaped shell 71 under the elastic force of the elastic pull wires 73, so that the hollow pull wires 3 can be conveniently pulled away from the gullet.

The inner side of the outer shaping shell 71 is provided with a magnetic repulsion inner core 8 which has magnetic repulsion with the extension magnetic rod 6, the magnetic repulsion inner core 8 is connected with the hollow brace 3, the outer end of the magnetic repulsion inner core 8 is covered with a shielding hollow layer 10, a plurality of uniformly distributed fault balls 9 are embedded and connected on the shielding hollow layer 10, a plurality of liquid flowing holes corresponding to the shielding hollow layer 10 are arranged on the magnetic repulsion inner core 8, and the liquid flowing hole is communicated with the shielding hollow layer 10, the fault ball 9 extrudes the shielding hollow layer 10 to generate an interruption phenomenon in a normal state, so that part of the magnetic field of the magnetic repulsion inner core 8 can still act on the extension magnetic rod 6 to repel, the fault ball 9 is extruded to deform and dent after the liquid is filled into the shielding hollow layer 10, at the moment, the shielding hollow layer 10 can be redistributed to realize continuity, the magnetic field shielding effect of the magnetic repulsion inner core 8 is improved, and the extension magnetic rod 6 can retract under the pulling effect of the elastic wire drawing 73.

Referring to fig. 5, the shielding hollow layer 10 is made of an elastic material, and the shielding hollow layer 10 is filled with a plurality of magnetic conductive balls, and the fault ball 9 is depressed after being squeezed by the liquid, the shielding hollow layer 10 squeezes the magnetic conductive balls to redistribute under the action of the elastic force, and the spherical structure of the magnetic conductive balls is easier to migrate for redistribution after being squeezed.

The magnetic conduction balls are made of high-permeability materials and are stacked in a double-layer mode, the double-layer stacked magnetic conduction balls can ensure that the interruption region is covered in redistribution, meanwhile, stress is simple, redistribution is easily achieved under the elastic extrusion effect of the shielding hollow layer 10, the stress is more complicated when the number of layers is more, the redistribution effect is poorer, and the probability of effectively covering the interruption region is reduced, so that magnetic field shielding failure is caused.

The diameter ratio of the magnetic conduction ball to the fault ball 9 is 1:3-6, the shielding hollow layer 10 is in an elastic stretching state, the proper diameter ratio can ensure that the magnetic conduction ball has a good shielding effect when redistributed, and the magnetic conduction ball is easy to extrude to reset after the fault ball 9 recovers the shape, the resetting is difficult due to the fact that the diameter of the magnetic conduction ball is too small, and the covering effect on a fault area is reduced due to the fact that the diameter of the magnetic conduction ball is too large.

Referring to fig. 6, the fault sphere 9 includes an outer protective hemisphere 91, an inner pressure hemisphere 92 and a plurality of elastic support wires 93, the outer protective hemisphere 91 is symmetrically connected to the inner pressure hemisphere 92, the outer protective hemisphere 91 is connected to the outer end of the shielding hollow layer 10, the inner pressure hemisphere 92 extrudes and extends toward the inner side of the shielding hollow layer 10, the elastic support wires 93 are uniformly connected between the outer protective hemisphere 91 and the inner pressure hemisphere 92, the inner pressure hemisphere 92 compresses the elastic support wires 93 to recess toward the inner side of the outer protective hemisphere 91 when being filled with liquid, the shielding hollow layer 10 extrudes the magnetic conductive ball to redistribute after losing the extrusion effect of the inner pressure hemisphere 92, so that the magnetic conductive ball enters the recess of the inner pressure hemisphere 92 to cover, and the magnetic conductive ball is extruded to reset in the process of recovering the shape of the inner pressure hemisphere 92 after the liquid flows back.

Referring to fig. 7, a plurality of surface pressure plates 94 corresponding to the elastic supporting wires 93 are further connected to the internal pressure hemisphere 92, one end of each surface pressure plate 94, which is close to the elastic supporting wires 93, is connected to a force limiting sleeve 95, and the elastic supporting wires 93 penetrate through the force limiting sleeve 95 and are vertically connected to the surface pressure plates 94, so that the surface pressure plates 94 can improve the extrusion effect on the magnetic conductive ball, reduce the resistance when the magnetic conductive ball resets, and meanwhile, the force limiting sleeve 95 can limit the elastic direction of the elastic supporting wires 93, so that the internal pressure hemisphere 92 extrudes the magnetic conductive ball to the surrounding area in a spherical expansion posture, thereby ensuring the resetting effect of the magnetic conductive ball, and the magnetic conductive ball is difficult to reset due to abnormal extrusion force.

The outer protecting hemisphere 91, the surface pressing sheet 94 and the force limiting sleeve 95 are all made of hard materials, and the inner pressing hemisphere 92 and the elastic supporting wire 93 are all made of elastic materials.

The invention can force the magnetic field in the hydraulic magnetic capsule 7 to change by carrying out structural innovation on the hollow brace 3 and by a mode of pressing the liquid capsule 4 to fill liquid, under the initial state, the magnetic field in the hydraulic magnetic capsule 7 can normally act on the extension magnetic rod 6, the extension magnetic rod 6 is forced to extrude the sprocket sleeve 5 to deform and extend by a magnetic repulsion mode, so as to be matched with the sprocket groove on the cover plate 2, thereby realizing high-strength sealing on the box body 1, at the moment, the hollow brace 3 is difficult to be directly pulled open, when unsealing, the liquid is filled into the hydraulic magnetic capsule 7 through the hollow brace 3 by a mode of pressing the liquid capsule 4, the magnetic field in the hydraulic magnetic capsule 7 is forced to be shielded to a certain degree, thereby weakening the repulsion acting force on the extension magnetic rod 6, then the extension magnetic rod 6 retracts under the elastic force and moves out of the sprocket groove, at the moment, the hollow brace 3 can be normally pulled open, and reverse operation can be realized when the zipper is packaged again, compared with the existing zipper paper box, the zipper paper box has good packaging strength, and can be directly and effectively reused.

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.