CN109573240B

CN109573240B - Green corrugated carton

Info

Publication number: CN109573240B
Application number: CN201811312369.0A
Authority: CN
Inventors: 彭灿; 张帝
Original assignee: Guizhou Hecheng New Material Technology Co ltd
Current assignee: Guizhou Hecheng New Material Technology Co.,Ltd.
Priority date: 2018-11-06
Filing date: 2018-11-06
Publication date: 2020-08-25
Anticipated expiration: 2038-11-06
Also published as: CN109573240A

Abstract

The invention belongs to the technical field of cartons, and particularly relates to a green environment-friendly corrugated carton which comprises side plates surrounding in a square shape, and a first end cover and a second end cover which are covered with the side plates in the square shape; dividing the side plate into two first plates which are symmetrically arranged and two second plates which are symmetrically arranged through four first creases; the first plates are provided with second creases parallel to the first creases and equal in length, and the second creases on the two first plates are symmetrical with respect to the center of the square side plate; four hinge mechanisms are embedded in the side plates; one end of each hinge mechanism is provided with a first chamber and a line hole for communicating the first chamber with the outside, wherein two hinge mechanisms are positioned at the first crease, and the other two hinge mechanisms are positioned at the second crease; the invention can change and adjust the length and the width according to the size of an article, and can fix the shape of the carton after the length and the width are changed so as to adapt to express packing with different lengths, so that the carton is more convenient to use.

Description

Green corrugated carton

Technical Field

The invention belongs to the technical field of cartons, and particularly relates to a green environment-friendly corrugated carton.

Background

Corrugated cartons are rigid paper containers made from corrugated cardboard. For more than half a century, corrugated cases gradually replaced transport packaging containers such as wooden cases with excellent service performance and good processing performance, become the leading force of transport packaging, especially the current hot express industry, and used a large amount of carton packages. The traditional corrugated carton is formed by integrally wrapping four surfaces to form a frame, and then the whole corrugated carton is sealed by folding and combining two surfaces, so that articles can be stored, but the corrugated carton cannot be adjusted according to the specification of the articles; meanwhile, most corrugated cases are disposable and will be discarded after being used, and the corrugated cases cannot be reused, so that various environmental pollutions are brought, and the theme of energy conservation, emission reduction and environmental protection advocated by the modern countries is not met.

Patent document 1: novel corrugated carton, application number 2017108871998

In the above-mentioned patent document 1, a novel corrugated carton is disclosed, including first short slab, the both sides of first short slab all are equipped with first curb plate, the one end fixedly connected with of first short slab seals the strip, the other end of first short slab is equipped with first long slab, the first backup pad of one side fixedly connected with of first long slab, the first crease plate mechanism of opposite side fixedly connected with of first long slab, the other end of first long slab is equipped with the second short slab, the both sides of second short slab all are equipped with the second curb plate, the other end of second short slab is equipped with the second long slab, the surface of sealing the strip is hugged closely to the inboard of second long slab.

The corrugated case disclosed in the patent document can be folded according to the first folding mechanism and the second folding mechanism when being installed, so that the internal space of the corrugated case can be changed, and the corrugated case can be conveniently changed according to articles with different specifications; however, before the shape of the carton is changed, the shape of the carton is not stable, the shape of the carton needs to be fixed by wrapping the adhesive tape, after the shape is changed, the adhesive tape before being torn off needs to be bonded again, and the use is troublesome.

Disclosure of Invention

In order to make up for the defects of the prior art, the green environment-friendly corrugated carton provided by the invention can be changed and adjusted in length and width according to the size of an article, and the adjusted corrugated carton can be shaped firmly to adapt to express packing boxes with different lengths, so that the variety of multi-specification cartons is reduced, and the use of the corrugated carton is more convenient; meanwhile, the carton is green and environment-friendly, and can be recycled for multiple times.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a green environment-friendly corrugated case which comprises side plates surrounding in a square shape, a first end cover and a second end cover, wherein the first end cover and the second end cover are covered with the side plates in the square shape; the first end cover and the second end cover are of two specifications, the first end cover and the second end cover of one specification are matched with the side plate before deformation, and the first end cover and the second end cover of the other specification are matched with the side plate after deformation; dividing the side plate into two first plates which are symmetrically arranged and two second plates which are symmetrically arranged through four first creases; the first plates are provided with second creases parallel to the first creases and equal in length, and the second creases on the two first plates are symmetrical with respect to the center of the square side plate; four hinge mechanisms are embedded in the side plates; one end of each hinge mechanism is provided with a first chamber and a line hole for communicating the first chamber with the outside, wherein two hinge mechanisms are positioned at the first crease, and the other two hinge mechanisms are positioned at the second crease; the hinge mechanism comprises a piston head, a first spring, a pull rope, a third plate and a fourth plate which are hinged with each other; the third plate and the fourth plate are embedded in the first plate, the hinged position of the third plate and the fourth plate is positioned at the second crease, and the middle parts of the third plate and the fourth plate are hollow; the piston head is positioned in the first chamber, one end of the piston head can slide through the third plate and be inserted into the fourth plate, and the other end of the piston head is matched with the inner side of the first chamber; the first spring is positioned in the first chamber and is used for resetting the piston head after sliding; one end of the pull rope is connected with the piston head, the other end of the pull rope penetrates through the wire hole and extends outside the side plate, the pull rope is pulled to enable the piston head to exit from the fourth plate, the side plate is bent according to the second crease, an included angle between the third plate and the fourth plate is a right angle, and length and width conversion of the first plate and the second plate of the side plate can be achieved. When the express box works, different expressages are packed by the paper box, and because the size and the length of each expressage are different, the expressages need to be packed by the paper boxes with different sizes, so that the specifications of the paper boxes are diversified, and the paper boxes are inconvenient to purchase and use; the carton can be adjusted in length and width changing mode according to the size of an article so as to adapt to express packing with different lengths, the variety of multi-specification cartons is reduced, and the carton is more convenient to use; specifically, before the size of the carton is not adjusted, in the hinge mechanism at the second crease, the piston head penetrates through the third plate and is inserted into the fourth plate, so that the second crease of the first plate is kept upright and is not easy to deform, and the shape of the carton is kept; in the hinge mechanism positioned at the first crease, the piston head and the fourth plate are in a separated state, and the included angle between the third plate and the fourth plate is a right angle; when the carton needs to be deformed according to the size of express delivery, the pull rope is manually pulled in the hinge mechanism at the second crease, so that the piston head is made to form a fourth plate, and then the two symmetrical first plates are folded along the second crease, so that the second crease forms a right angle; in the hinge mechanism at the first crease, the right angle at the first crease is straightened into a straight angle, and under the action of the first spring, the piston head passes through the third plate and is inserted into the fourth plate, so that the shape of the straight angle of the first crease is fixed; the side plates are deformed, so that the first plate is shortened, the second plate is lengthened, the shape of the side plate of the carton is changed, and then the first end cover and the second end cover of the other specification are covered on the side plate, so that the specification and the shape of the carton are changed; therefore, the carton can be recycled for multiple times, and is green and environment-friendly.

A second chamber is arranged in the piston head, and the piston head is a brittle plastic part; and glue is filled in the second cavity. In the hinge mechanism at the first crease or the second crease during operation, when the right angle at the first crease or the second crease needs to be changed into a straight angle, and when the straight angle at the first crease or the second crease needs high strength fixing, the pull rope is pulled to smooth the first crease or the second crease so that the first crease or the second crease is changed into the straight angle, the piston head passes through the third plate and is inserted into the fourth plate, and then the piston head is directly pulled, the piston head is subjected to destructive treatment, so that the piston head is broken at the hinge joint between the third plate and the fourth plate, the glue in the piston head seeps out and flows to the hinge joint between the third plate and the fourth plate along the cavity in the third plate, the first crease or the second crease is formed, glue is solidified at the first crease or the second crease which is at a straight angle, and therefore the solidified shape of the deformed carton is strengthened, the deformed carton is not prone to deformation after being packaged for express delivery, and the express delivery can be protected better.

A first air hole is formed in the piston head; the first air hole is communicated with the first chamber and the second chamber; a film which is a little fixed on the inner wall of the second chamber is arranged at the first air hole in the second chamber; the film is used for enabling the air hole I to ventilate towards the chamber II in a one-way mode; and a sealing ring is arranged in the wire hole. When the hinge mechanism works, in the hinge mechanism at the first crease or the second crease, when the right angle at the first crease or the second crease needs to be changed into a straight angle and the straight angle at the first crease or the second crease needs high-strength solid shape, after glue is injected to the first crease or the second crease, the pull rope is pulled by hands for many times to enable the piston head to extrude gas in the first cavity, the gas in the first cavity is compressed into the second cavity, so that the glue in the second cavity is discharged more thoroughly and cleanly, the solid shape at the first crease or the second crease is facilitated, the solid shape of the deformed carton is enhanced, the deformed carton is not easy to deform after being loaded with express, and the express is protected better; here, when the first fold or the second fold changes from a straight angle to a right angle, no glue needs to be injected.

A straight spring is arranged in a cavity of the third plate; half of the straight spring is located in the cavity of the fourth plate, and the middle of the straight spring is located at the hinged position of the third plate and the fourth plate. The during operation is connected a straight spring between No. three boards and No. four boards, can increase the reliability of being connected of No. three boards and No. four boards, the joint strength of reinforcing crease one or crease two departments, simultaneously, after crease one and crease two departments become the straight angle by the right angle, straight spring becomes upright state again by the bending state, make crease one and crease two keep the straight angle state, thereby intensity when improving carton secondary deformation has improved the flexible number of times of carton, be favorable to improving the number of times of carton recycling.

An air bag is arranged between two adjacent spring coils in the middle of the straight spring; the air bag is positioned on one side of the straight spring with large edge deformation after the straight spring is bent, and the air bag is communicated with the first chamber through a pipeline. The during operation, when the straight angle in crease one or crease two departments need become the right angle, the pulling stay cord, make the piston head withdraw from No. four boards, and manually pull crease one or crease two, make crease one or crease two become the right angle, because of the tight power that can appear after the bending of straight spring, consequently, compression chamber one when withdrawing through the piston head, make the gas in the chamber one extruded in the chamber two, make the gas in the chamber one enter into the gasbag by the extrusion, make the gasbag inflation, the gasbag is inflated will make one side of two adjacent spring coils lifted up, make the straight spring crooked right angle that can adapt to crease one or crease two departments, be favorable to the solid form after crease one or two departments become the right angle, thereby strengthen the solid form of deformation back carton, make the carton after the deformation difficult to deform after dress express delivery, protection express delivery that can be better.

A plurality of gaps are formed in the outer side wall of the piston head, and elastic broken steel wires are arranged in the second inner chamber of the piston head. When the working process is carried out, when the right angle at the first crease or the second crease needs to be converted into a straight angle and the straight angle at the first crease or the second crease needs to be high-strength fixed, the pull rope is pulled to smooth the first crease or the second crease so that the first crease or the second crease changes into a straight angle, the piston head penetrates through the third plate and is inserted into the fourth plate, then the piston head is pulled off directly, the piston head is subjected to destructive treatment so that the piston head is broken at the hinged position between the third plate and the fourth plate, glue in the piston head seeps out and flows to the hinged position between the third plate and the fourth plate along a cavity in the third plate, the glue is fixed at the first crease or the second crease which is in the straight angle, and the piston head outside the third plate is easy to crack due to the fact that a gap is formed on the outer side wall of the piston head, so that the glue in the piston head can easily seep out and flow to the hinged position between the third plate and the fourth plate along the cavity in the third plate, simultaneously, the garrulous steel wire of elasticity will also be because of the piston head breaks and automatic the jump out piston head, the garrulous steel wire of elasticity has the effect of the breach that enlarges on the piston head for glue is easier to permeate the articulated department between No. three boards and No. four boards, glue by the way on the garrulous steel wire of elasticity, also is favorable to the solid shape of crease one or crease two departments, thereby has improved the solid shape ability of warping back carton, makes the carton after warping dress express delivery non-deformable, protection express delivery that can be better.

The invention has the following beneficial effects:

1. the carton can be adjusted in length and width changing mode according to the size of an article, the adjusted carton can be shaped firmly to adapt to express packing with different lengths, the variety of multi-specification cartons is reduced, and the carton is more convenient to use; meanwhile, the carton is green and environment-friendly, and can be recycled for multiple times.

2. Before the size of the carton is not adjusted, the piston head penetrates through the third plate and is inserted into the fourth plate, so that the crease of the first plate is kept upright and is not easy to deform, and the original shape of the carton is kept; when the carton need adapt to the size of express delivery and warp, the stay cord is pulled manually, makes the piston head withdraw from No. four boards, then folds up two places of crease with two of symmetry, makes two places of crease become the right angle to straighten the right angle of original crease one place into the straight angle, make the curb plate warp, and close No. one end cover and No. two end cover lid on the curb plate, realize the transform of carton specification shape.

3. According to the invention, when the right angle at the first crease or the second crease needs to be changed into the straight angle and the straight angle at the first crease or the second crease needs to be subjected to high-strength shape fixing, the piston head is broken, so that glue in the piston head seeps out and flows to the hinge joint between the third plate and the fourth plate along the cavity in the third plate for bonding and shape fixing, and thus the shape fixing of the deformed carton is enhanced, the deformed carton is not easy to deform after being loaded with express, and the express can be protected better.

4. According to the invention, the piston head is withdrawn from the fourth plate by pulling the pull rope by hand, so that the volume of the first chamber is reduced, and the gas in the first chamber is compressed into the second chamber, so that the glue in the second chamber is discharged more thoroughly and cleanly, the shape fixing at the first crease or the second crease is facilitated, the shape fixing of the deformed carton is enhanced, the deformed carton is not easy to deform after being loaded with express, and the express can be better protected.

Drawings

Fig. 1 is a schematic structural view of a green environmental corrugated box according to the present invention;

FIG. 2 is a schematic structural view of the side panel of the present invention before it is deformed;

FIG. 3 is a schematic view of the side panel of the present invention after deformation;

FIG. 4 is a schematic view of the hinge mechanism of the present invention;

FIG. 5 is an enlarged view taken at A with respect to FIG. 4;

FIG. 6 is a view of the present invention with fold one or fold two at right angles;

FIG. 7 is a schematic view of the hinge of the third and fourth plates of the present invention;

FIG. 8 is a schematic view of the piston head construction of the present invention;

in the figure: side plate 1, first plate 11, second plate 12, second crease 13, first end cover 14, first crease 15, hinge mechanism 2, first chamber 21, wire hole 22, piston head 23, second chamber 231, first air hole 232, notch 233, film 234, pull rope 24, third plate 25, fourth plate 26, straight spring 27 and air bag 28.

Detailed Description

An environment-friendly corrugated cardboard box according to the present invention will be described below with reference to fig. 1 to 8.

As shown in fig. 1 to 8, the environment-friendly corrugated case of the present invention includes a side plate 1 surrounding in a square shape, and a first end cover 14 and a second end cover covering the side plate 1; the first end cover 14 and the second end cover have two specifications, the first end cover 14 and the second end cover of one specification are matched with the side plate 1 before deformation, and the first end cover 14 and the second end cover of the other specification are matched with the side plate 1 after deformation; dividing the side plate 1 into two first plates 11 and two second plates 12 which are symmetrically arranged through four folds I15; the first plates 11 are respectively provided with a second crease 13 which is parallel to the first crease 15 and has the same length, and the second creases 13 on the two first plates 11 are symmetrical about the center of the square side plate 1; four hinge mechanisms 2 are embedded in the side plate 1; one end of each hinge mechanism 2 is provided with a first chamber 21 and a line hole 22 for communicating the first chamber 21 with the outside, wherein two hinge mechanisms 2 are positioned at the first crease 15, and the other two hinge mechanisms 2 are positioned at the second crease 13; the hinge mechanism 2 comprises a piston head 23, a spring I, a pull rope 24, a third plate 25 and a fourth plate 26 which are hinged with each other; the third plate 25 and the fourth plate 26 are embedded in the first plate 11, the hinge joint of the third plate 25 and the fourth plate 26 is located at the second crease 13, and the middle parts of the third plate 25 and the fourth plate 26 are hollow; the piston head 23 is positioned in the first chamber 21, one end of the piston head 23 can slide through the third plate 25 and be inserted into the fourth plate 26, and the other end of the piston head 23 is matched with the inner part of the first chamber 21; the first spring is positioned in the first chamber 21 and is used for resetting the piston head 23 after sliding; one end of the pull rope 24 is connected with the piston head 23, the other end of the pull rope 24 penetrates through the wire hole 22 and extends out of the side plate 1, the pull rope 24 is pulled to enable the piston head 23 to exit from the fourth plate 26, the side plate 1 is bent according to the second crease 13, an included angle between the third plate 25 and the fourth plate 26 is a right angle, and length and width conversion of the first plate 11 and the second plate 12 of the side plate 1 can be achieved. When the express box works, different expressages are packed by the paper box, and because the size and the length of each expressage are different, the expressages need to be packed by the paper boxes with different sizes, so that the specifications of the paper boxes are diversified, and the paper boxes are inconvenient to purchase and use; the carton can be adjusted in length and width changing mode according to the size of an article so as to adapt to express packing with different lengths, the variety of multi-specification cartons is reduced, and the carton is more convenient to use; specifically, in the hinge mechanism 2 located at the second crease 13 before the size of the carton is not adjusted, the piston head 23 passes through the third plate 25 and is inserted into the fourth plate 26, so that the second crease 13 of the first plate 11 is kept upright and is not easy to deform, and the shape of the carton is kept; in the hinge mechanism 2 at the first crease 15, the piston head 23 and the fourth plate 26 are in a separated state, and the included angle between the third plate 25 and the fourth plate 26 is a right angle; when the carton needs to be deformed according to the size of express delivery, in the hinge mechanism 2 at the second crease 13, the pull rope 24 is manually pulled to enable the piston head 23 to form a fourth plate 26, and then the two symmetrical first plates 11 are folded up along the second crease 13 to enable the second crease 13 to form a right angle; in the hinge mechanism 2 at the first crease 15, the right angle at the first crease 15 is straightened into a straight angle, and under the action of the first spring, the piston head 23 passes through the third plate 25 and is inserted into the fourth plate 26, so that the shape of the straight angle of the first crease 15 is fixed; therefore, the side plate 1 is deformed, the first plate 11 is shortened, the second plate 12 is lengthened, the shape of the side plate 1 of the carton is changed, and then the first end cover 14 and the second end cover of the other specification are covered on the side plate 1, so that the specification and the shape of the carton are changed.

As shown in fig. 4 and 8, a second chamber 231 is disposed in the piston head 23, and the piston head 23 is a plastic member with brittleness; the second chamber 231 is filled with glue. In operation, in the hinge mechanism 2 at the first crease 15 or the second crease 13, when the right angle at the first crease 15 or the second crease 13 needs to be changed into a straight angle and the straight angle at the first crease 15 or the second crease 13 needs to be fixed with high strength, the pull rope 24 is pulled to smooth the first crease 15 or the second crease 13 to change the first crease 15 or the second crease 13 into a straight angle, the piston head 23 passes through the third plate 25 and is inserted into the fourth plate 26, then the piston head 23 is directly pulled to destructively process the piston head 23 to break the piston head 23 at the hinge joint between the third plate 25 and the fourth plate 26, the glue in the piston head 23 seeps out and flows to the hinge joint between the third plate 25 and the fourth plate 26 along the cavity in the third plate 25, namely, at the first crease 15 or the second crease 13, and is fixed at the first crease 15 or the second crease 13 which is in a straight angle, so as to strengthen the shape fixation of the deformed carton, make the carton after the deformation non-deformable after adorning the express delivery, protection express delivery that can be better.

As shown in fig. 4, 6 and 8, the piston head 23 is provided with a first air hole 232; the first air hole 232 is communicated with the first chamber 21 and the second chamber 231; a film 234 fixed to the inner wall of the second chamber 231 is disposed at the first air hole 232 in the second chamber 231; the membrane 234 is used for making the air hole I232 ventilate towards the chamber II 231 in a one-way mode; a sealing ring is arranged in the wire hole 22. During operation, in the hinge mechanism 2 at the first crease 15 or the second crease 13, when the right angle at the first crease 15 or the second crease 13 needs to be changed into a straight angle and the straight angle at the first crease 15 or the second crease 13 needs to be fixed with high strength, after glue is injected to the first crease 15 or the second crease 13, the pull rope 24 is pulled by hand for many times to enable the piston head 23 to extrude gas in the first cavity 21, so that the gas in the first cavity 21 is compressed into the second cavity 231, thereby enabling the glue in the second cavity 231 to be discharged more thoroughly and cleanly, facilitating the fixing at the first crease 15 or the second crease 13, further enhancing the fixing of the deformed carton, enabling the deformed carton to be difficult to deform after being loaded with express, and better protecting express; here, when the straight angle is changed from the straight angle to the right angle by the first fold 15 or the second fold 13, no glue needs to be injected.

As shown in fig. 4, 6 and 8, a straight spring 27 is arranged in the cavity of the third plate 25; half of the straight spring 27 is located in the cavity of the fourth plate 26, and the middle of the straight spring 27 is located at the hinge joint of the third plate 25 and the fourth plate 26. During operation, connect a straight spring 27 between No. three board 25 and No. four board 26, can increase No. three board 25 and No. four board 26's connection reliability, strengthen the joint strength of crease one 15 or crease two 13 departments, simultaneously, after crease one 15 and crease two 13 departments become the straight angle by the right angle, straight spring 27 becomes upright state again by crooked state, make crease one 15 and crease two 13 keep the straight angle state, thereby intensity when improving the carton secondary deformation, the flexible number of times of carton has been improved, be favorable to improving the number of times of carton used repeatedly.

As shown in fig. 4, 5, 6 and 8, an air bag 28 is arranged between two adjacent coils in the middle of the straight spring 27; the air bag 28 is positioned on the side of the straight spring 27 with large deformation of the edge of the coil after bending, and the air bag 28 is communicated with the first chamber 21 through a pipeline. In operation, when the straight angle at the first crease 15 or the second crease 13 needs to be changed into a right angle, the pull rope 24 is pulled to enable the piston head 23 to exit the fourth plate 26, the first crease 15 or the second crease 13 is manually pulled to enable the first crease 15 or the second crease 13 to be changed into the right angle, and because the straight spring 27 generates a tightening force after being bent, the piston head 23 compresses the first chamber 21 when retreating, so that the gas in the first chamber 21 is extruded into the second chamber 231, the gas in the first chamber 21 is extruded into the airbag 28, the airbag 28 is inflated to lift one side of two adjacent spring rings, the straight spring 27 can adapt to the right angle at the first crease 15 or the second crease 13 to facilitate the shape after the first crease 15 or the second crease 13 is changed into the right angle, so as to strengthen the shape of the deformed carton, and the deformed carton is not easy to deform after being loaded by an express mail, express delivery can be better protected.

As shown in fig. 4, 5, 6 and 8, the outer side wall of the piston head 23 is provided with a plurality of notches 233, and the second inner chamber 231 of the piston head 23 is internally provided with elastic steel wires. In operation, when the right angle at the first crease 15 or the second crease 13 needs to be changed into a straight angle, and the straight angle at the first crease 15 or the second crease 13 needs to be fixed with high strength, the pull rope 24 should be pulled to smooth the first crease 15 or the second crease 13 to change the first crease 15 or the second crease 13 into a straight angle, the piston head 23 passes through the third plate 25 and is inserted into the fourth plate 26, then the piston head 23 is directly pulled to destructively process the piston head 23, so that the piston head 23 is broken at the hinge joint between the third plate 25 and the fourth plate 26, the glue in the piston head 23 will seep out and flow to the hinge joint between the third plate 25 and the fourth plate 26 along the cavity in the third plate 25, so that the glue is fixed at the first crease 15 or the second crease 13 with a straight angle, and the piston head 23 outside the third plate 25 is easily broken due to the notch 233 formed on the outer side wall of the piston head 23, thereby make glue in the piston head 23 can be very easy ooze and flow to the articulated department between No. three board 25 and No. four board 26 along the cavity in No. three board 25, simultaneously, elasticity shredded steel wire will also be because of piston head 23's fracture automatic jumping out piston head 23, elasticity shredded steel wire has the effect of enlarging breach 233 on the piston head 23, make the articulated department between No. three board 25 and No. four board 26 of infiltration of glue easier, subsidiary glue on the elasticity shredded steel wire, also be favorable to the solid shape of crease one 15 or crease two 13 department, thereby the solid shape ability of the back carton that has warp has been improved, make the carton after the deformation difficult deformation after adorning the express delivery, can better protection express delivery.

The specific working process is as follows:

in the operation, before the size of the carton is not adjusted, in the hinge mechanism 2 at the second crease 13, the piston head 23 passes through the third plate 25 and is inserted into the fourth plate 26, so that the second crease 13 of the first plate 11 is kept upright and is not easy to deform, and the shape of the carton is kept; in the hinge mechanism 2 at the first crease 15, the piston head 23 and the fourth plate 26 are in a separated state, and the included angle between the third plate 25 and the fourth plate 26 is a right angle; when the carton needs to be deformed according to the size of express delivery, in the hinge mechanism 2 at the second crease 13, the pull rope 24 is manually pulled to enable the piston head 23 to form a fourth plate 26, and then the two symmetrical first plates 11 are folded up along the second crease 13 to enable the second crease 13 to form a right angle; in the hinge mechanism 2 at the first crease 15, the right angle at the first crease 15 is straightened into a straight angle, and under the action of the first spring, the piston head 23 passes through the third plate 25 and is inserted into the fourth plate 26, so that the shape of the straight angle of the first crease 15 is fixed; so that the side plate 1 deforms, the first plate 11 shortens, the second plate 12 lengthens, the shape of the side plate 1 of the carton is changed, and then the first end cover 14 and the second end cover of the other specification are covered on the side plate 1, so that the specification and the shape of the carton are changed;

when the angle at the first fold 15 or the second fold 13 needs to be changed, in the hinge mechanism 2 at the first fold 15 or the second fold 13, when the right angle at the first fold 15 or the second fold 13 needs to be changed into a straight angle, and when the straight angle at the first crease 15 or the second crease 13 needs high strength fixing, the pull rope 24 should be pulled to smooth the first crease 15 or the second crease 13 to make the first crease 15 or the second crease 13 become the straight angle, the piston head 23 passes through the third plate 25 and is inserted into the fourth plate 26, then the piston head 23 is directly pulled, the piston head 23 is destructively treated so that the piston head 23 is ruptured at the hinge between the No. three plate 25 and the No. four plate 26, the glue in the piston head 23 will seep out and flow along the cavity in the No. three plate 25 to the hinge between the No. three plate 25 and the No. four plate 26, namely the first crease 15 or the second crease 13, so that the glue is solidified at the first crease 15 or the second crease 13 which is in a straight angle; when the notch 233 is formed in the outer side wall of the piston head 23, the piston head 23 outside the third plate 25 can be easily broken, so that glue in the piston head 23 can easily seep out and flow to the hinge joint between the third plate 25 and the fourth plate 26 along the cavity in the third plate 25, meanwhile, the elastic broken steel wire can automatically bounce out of the piston head 23 due to the breakage of the piston head 23, the elastic broken steel wire has the function of expanding the notch 233 in the piston head 23, so that the glue can easily seep into the hinge joint between the third plate 25 and the fourth plate 26, and the elastic broken steel wire is additionally provided with the glue and is also beneficial to the shape fixation of the second fold 13; after glue is injected to the crease I15 or the crease II 13, the piston head 23 is pulled by hand for multiple times to withdraw the fourth plate 26, when the piston head 23 is withdrawn, the volume of the chamber I21 is reduced, and the gas in the chamber I21 is compressed into the chamber II 231, so that the glue in the chamber II 231 is discharged more completely and cleanly, and the fixation of the crease I15 or the crease II 13 is facilitated; a straight spring 27 is connected between the third plate 25 and the fourth plate 26, so that the connection reliability of the third plate 25 and the fourth plate 26 can be improved, the connection strength of the first crease 15 or the second crease 13 is enhanced, and meanwhile, after the first crease 15 and the second crease 13 are changed from a right angle to a straight angle, the straight spring 27 is changed from a bending state to an upright state again, so that the first crease 15 and the second crease 13 are kept in a straight angle state, the strength of the carton during secondary deformation is improved, the deformation times of the carton are improved, and the recycling times of the carton are improved; when the straight angle at the first crease 15 or the second crease 13 needs to be changed into a right angle, the straight spring 27 can generate a tight force after being bent, therefore, the first chamber 21 is compressed when the piston head 23 retracts, gas in the first chamber 21 is extruded into the second chamber 231, the gas in the first chamber 21 is extruded into the air bag 28, the air bag 28 expands, one side of two adjacent spring rings is lifted up due to the expansion of the air bag 28, the bent straight spring 27 can adapt to the right angle at the first crease 15 or the second crease 13, the shape change at the first crease 15 or the second crease 13 is facilitated, the shape fixing capacity of the deformed carton is improved, the deformed carton is not easy to deform after being loaded with express, and express delivery can be protected better.

While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

Industrial applicability

According to the invention, before the size of the carton is not adjusted, the piston head penetrates through the third plate and is inserted into the fourth plate, so that the crease of the first plate is kept upright and is not easy to deform, and the original shape of the carton is kept; when the carton needs to adapt to the size of express delivery and deforms, the pull rope is pulled manually to enable the piston head to exit from the fourth plate, then the two symmetrical first plates are folded along the second crease, the second crease forms a right angle, the right angle of the original first crease is straightened into a straight angle, the side plates deform, and the first end cover and the second end cover are covered on the side plates, so that the specification and the shape of the carton are changed; therefore, the environment-friendly corrugated case is useful in the technical field of cartons.

Claims

1. A green environment-friendly corrugated case comprises side plates (1) which are encircled into a square shape, and a first end cover (14) and a second end cover which are covered with the side plates (1) of the square shape; the first end cover (14) and the second end cover have two specifications; the side plate (1) is divided into two first plates (11) which are symmetrically arranged and two second plates (12) which are symmetrically arranged through four first creases (15); the method is characterized in that: the first plates (11) are respectively provided with a second crease (13) which is parallel to the first crease (15) and has the same length, and the second creases (13) on the two first plates (11) are centrosymmetric with respect to the square side plate (1); four hinge mechanisms (2) are embedded in the side plate (1); one end of each hinge mechanism (2) is provided with a first chamber (21) and a line hole (22) for communicating the first chamber (21) with the outside, wherein two hinge mechanisms (2) are positioned at the first crease (15), and the other two hinge mechanisms (2) are positioned at the second crease (13); the hinge mechanism (2) comprises a piston head (23), a first spring, a pull rope (24), a third plate (25) and a fourth plate (26) which are hinged with each other; the hinged position of the third plate (25) and the fourth plate (26) is positioned at the first crease (15) or the second crease (13), and the middle parts of the third plate (25) and the fourth plate (26) are hollow; the piston head (23) is positioned in the first chamber (21), one end of the piston head (23) can slide through the third plate (25) and be inserted into the fourth plate (26), and the other end of the piston head (23) is matched with the inner side of the first chamber (21); the first spring is positioned in the first chamber (21) and is used for resetting the piston head (23) after sliding; one end of the pull rope (24) is connected with the piston head (23), the other end of the pull rope (24) penetrates through the wire hole (22) and extends out of the side plate (1), the pull rope (24) is pulled to enable the piston head (23) to exit from the fourth plate (26), the side plate (1) is bent according to the second crease (13), an included angle between the third plate (25) and the fourth plate (26) is a right angle, and the length and width of the first plate (11) and the second plate (12) of the side plate (1) can be changed;

a second chamber (231) is arranged in the piston head (23), and the piston head (23) is a plastic piece with brittleness; glue is filled in the second chamber (231);

the piston head (23) is provided with a first air hole (232); the first air hole (232) is communicated with the first chamber (21) and the second chamber (231); a thin film (234) which is fixed on the inner wall of the second chamber (231) is arranged at the position of the first air hole (232) in the second chamber (231); the membrane (234) is used for ventilating the air hole I (232) towards the chamber II (231) in a single direction; a sealing ring is arranged in the wire hole (22);

a straight spring (27) is arranged in a cavity of the third plate (25); half of the straight spring (27) is positioned in a cavity of the fourth plate (26), and the middle part of the straight spring (27) is positioned at the hinge joint of the third plate (25) and the fourth plate (26);

an air bag (28) is arranged between two adjacent coils in the middle of the straight spring (27); the air bag (28) is positioned on one side of the straight spring (27) with large edge deformation after bending, and the air bag (28) is communicated with the first chamber (21) through a pipeline;

a plurality of gaps (233) are formed in the outer side wall of the piston head (23), and elastic broken steel wires are arranged in the inner chamber II (231) of the piston head (23);

during operation, before the size of the carton is not adjusted, in the hinge mechanism (2) positioned at the second crease mark (13), the piston head (23) penetrates through the third plate (25) and is inserted into the fourth plate (26), so that the second crease mark (13) of the first plate (11) is kept upright and is not easy to deform, and the shape of the carton is kept; in the hinge mechanism (2) positioned at the crease I (15), the piston head (23) and the fourth plate (26) are in a separated state, and the included angle between the third plate (25) and the fourth plate (26) is a right angle; when the carton needs to be deformed according to the size of express delivery, in the hinge mechanism (2) at the second crease mark (13), the pull rope (24) is manually pulled to enable the piston head (23) to form a fourth plate (26), and then the two symmetrical first plates (11) are folded along the second crease mark (13) to enable the second crease mark (13) to form a right angle; in the hinge mechanism (2) at the first crease mark (15), the right angle at the original first crease mark (15) is straightened into a straight angle, and under the action of a first spring, a piston head (23) penetrates through a third plate (25) and is inserted into a fourth plate (26), so that the shape of the straight angle of the first crease mark (15) is fixed; so that the side plates (1) deform, the first plate (11) shortens, the second plate (12) lengthens, the shape of the side plates (1) of the carton is changed, and then the first end cover (14) and the second end cover of the other specification are covered on the side plates (1), so that the specification and the shape of the carton are changed;

when the angle at the first crease mark (15) or the second crease mark (13) needs to be changed, in the hinge mechanism (2) at the first crease mark (15) or the second crease mark (13), when the right angle at the first crease mark (15) or the second crease mark (13) needs to be changed into a flat angle and the flat angle at the first crease mark (15) or the second crease mark (13) needs to be fixed with high strength, a pull rope (24) is pulled to smooth the first crease mark (15) or the second crease mark (13) so that the first crease mark (15) or the second crease mark (13) changes into a flat angle, a piston head (23) penetrates through the third plate (25) and is inserted into the fourth plate (26), then the piston head (23) is directly pulled to destructively process the piston head (23) so that the piston head (23) is broken at the hinge position between the third plate (25) and the fourth plate (26), and glue in the piston head (23) seeps out and flows to the hinge position between the third plate (25) and the fourth plate (26) along the cavity in the third plate (25), namely the position of the first crease mark (15) or the second crease mark (13), so that the glue is solidified at the position of the first crease mark (15) or the second crease mark (13) which is in a straight angle; when the outer side wall of the piston head (23) is provided with the notch (233), the piston head (23) positioned outside the third plate (25) can be easily broken off, so that glue in the piston head (23) can easily seep out and flow to the hinge joint between the third plate (25) and the fourth plate (26) along the cavity in the third plate (25), meanwhile, the elastic broken steel wire can automatically jump out of the piston head (23) due to the breakage of the piston head (23), the elastic broken steel wire has the function of expanding the notch (233) in the piston head (23), so that the glue can easily seep into the hinge joint between the third plate (25) and the fourth plate (26), and the elastic broken steel wire is additionally provided with the glue and is also beneficial to the shape fixation of the second (13) position; after glue is injected at the first crease (15) or the second crease (13), the piston head (23) is pulled by hand for multiple times to enable the pull rope (24) to exit from the fourth plate (26), when the piston head (23) exits, the volume of the first chamber (21) is reduced, and gas in the first chamber (21) is compressed into the second chamber (231), so that the glue in the second chamber (231) is discharged more completely and cleanly, and the fixation of the first crease (15) or the second crease (13) is facilitated; a straight spring (27) is connected between the third plate (25) and the fourth plate (26), so that the connection reliability of the third plate (25) and the fourth plate (26) can be improved, the connection strength of the first crease mark (15) or the second crease mark (13) is enhanced, and meanwhile, after the first crease mark (15) and the second crease mark (13) are changed from a right angle to a straight angle, the straight spring (27) is changed from a bending state to an upright state again, so that the first crease mark (15) and the second crease mark (13) are kept in the straight angle state, the strength of the carton during secondary deformation is improved, the deformable times of the carton are improved, and the recycling times of the carton are favorably improved; when the straight angle at the first crease (15) or the second crease (13) needs to be changed into a right angle, because the straight spring (27) can generate a tightening force after being bent, the first chamber (21) is compressed when the piston head (23) retracts, gas in the first chamber (21) is extruded into the second chamber (231), the gas in the first chamber (21) is extruded into the air bag (28), the air bag (28) is expanded, one side of two adjacent spring rings is lifted up due to the expansion of the air bag (28), the straight spring (27) is bent to be suitable for the right angle at the first crease (15) or the second crease (13), the shape fixing after the first crease (15) or the second crease (13) is changed into the right angle is facilitated, the shape fixing capacity of the deformed carton is improved, the deformed carton is not prone to deformation after being loaded with express, and express delivery can be protected better.