CN113264260A

CN113264260A - High-strength corrugated carton

Info

Publication number: CN113264260A
Application number: CN202110654115.2A
Authority: CN
Inventors: 王心颢; 韩文超; 孙庆柱
Original assignee: Changchun Xin'an Packaging Co ltd
Current assignee: Changchun Xin'an Packaging Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-08-17
Anticipated expiration: 2041-06-11
Also published as: CN113264260B

Abstract

The invention discloses a high-strength corrugated carton, which belongs to the technical field of packing boxes and is provided with a box body and a lock catch, wherein the box body can be concentric after two layers of paper boards are overlapped and is provided with holes, the lock catch locks the two layers of paper boards of the box body, and the lock catch is provided with a female buckle and a male buckle; the male buckle is inserted into the female buckle, the bendable claw is in contact with the driving structure to be bent, after locking, the bendable claw extends towards the clamping edge direction of the female buckle to be interlocked with the clamping edge, locking effectiveness is guaranteed, the phenomenon that the male buckle is separated from the female buckle due to rotation in the transportation process is avoided, locking reliability of the buckle is effectively guaranteed, the structure is simple, and the female buckle is convenient to use.

Description

High-strength corrugated carton

Technical Field

The invention relates to the technical field of packaging boxes, in particular to a high-strength corrugated carton.

Background

There are three ways of joining corrugated containers: nailing, adhesive bonding and tape bonding, wherein nailing is the most common carton bonding method and is used due to the simplest equipment and low cost, but for larger heavy corrugated cartons, the nailing method is inconvenient for packaging field operation;

the prior art discloses a Chinese patent of invention, application No. CN201110453021.5, which is a lock catch for corrugated paper packing boxes, and comprises a hollow cylindrical female buckle with openings at two ends, at least one pair of bendable claws is arranged at the circumferential edge of the top end of the female buckle, and a cylindrical male buckle which is inserted from the bottom end of the female buckle and can be used for bending the bendable claws outwards; a clamping edge is arranged on the outer side of the circumferential edge of the bottom end of the female buckle;

although the lock catch is used, the heavy corrugated paper packing box is not required to be nailed after being formed, but is directly locked through the lock catch, and the combination mode of the heavy corrugated packing box is optimized, so that the packing efficiency of the heavy corrugated packing box is greatly improved.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a high-strength corrugated carton.

In order to achieve the above purpose, the invention provides the following technical scheme:

the invention discloses a high-strength corrugated case, which comprises:

the box body is provided with a hole which can be concentric after the two layers of paper boards are overlapped, and the lock catch is used for locking the two layers of paper boards of the box body and is provided with a female buckle and a male buckle;

the male buckle is provided with at least one pair of bendable claws, the female buckle is provided with a driving structure which forces the bendable claws to bend and enables the bendable claws to keep bending, and under the locking state, the bendable claws extend towards the clamping edge direction of the female buckle so as to form interlocking with the clamping edge, so that two layers of paper boards are tightly overlapped and locked.

Furthermore, the driving structure is a turning driving inclined plane with an opening facing the clamping edge, and after the male buckle is inserted into the female buckle, the turning driving inclined plane forces the bendable claw to bend and turn back to make contact with each other.

Furthermore, the driving structure is a stop block for sealing the female buckle, the stop block is far away from the opening at the clamping edge end, and the stop block corresponds to the inner wall of the female buckle, and a turning driving inclined plane with an annular structure is formed.

Furthermore, the block is provided with at least one pair of cantilever arms fixedly connected with the female buckle, and a channel which can be passed by the bendable claw and can be rotationally displaced is formed between every two adjacent cantilever arms.

Furthermore, the check block is of a frustum structure, the diameter of the check block is smaller at the inner end of the female buckle, a flanging is formed at the exposed end of the check block, and the upper surface of the flanging is intersected with the outer wall of the frustum and is provided with an inclined plane which extends upwards in an inclined mode.

Furthermore, the outer diameter of the flanging is not larger than the outer diameter of the female buckle, so that when the diameter of the opening of the box body paperboard is equal to the outer diameter of the female buckle, the stop block smoothly passes through the opening.

Furthermore, the male buckle is made of elastic materials, a pair of foldable claws is arranged at the top end of the male buckle, and folds are formed on the outer wall of the foldable claws so that the foldable claws can be bent along the folds.

Furthermore, the male buckle and the female buckle are in clearance fit, so that the male buckle is inserted into the female buckle, and the turning-back driving inclined plane forces the bendable claw to elastically deform.

Furthermore, the pair of bendable claws are bent and bent outwards, and then the projection of the bendable claws on the section perpendicular to the axis of the male buckle is in a linear structure, and under the locking state, the bendable claws are abutted and contacted with the box body paper board to force the bendable claws to be bent inwards, so that the protrusions on the male buckle are abutted and contacted with the tail ends of the L-shaped sliding grooves on the female buckle.

Furthermore, the bottom end of the male buckle is provided with a depressed area, and a shifting plate for driving the male buckle to rotate is arranged in the depressed area.

In the technical scheme, the high-strength corrugated carton provided by the invention has the beneficial effects that:

the high-strength corrugated carton designed by the invention is locked by the lock catch, the male buckle of the lock catch is provided with the bendable claw, the female buckle is provided with the driving structure which forces the bendable claw to be bent and enables the bendable claw to keep the bendable claw to be bent, under the action of the driving structure, the male buckle is inserted into the female buckle, the bendable claw is in contact with the driving structure to be bent, and after the high-strength corrugated carton is locked, the bendable claw extends towards the clamping edge direction of the female buckle so as to form interlocking with the clamping edge, so that the two layers of paper boards are tightly overlapped to be locked, the locking effectiveness is ensured, the phenomenon that the male buckle is rotated to be separated from the female buckle due to the influence of external factors such as vibration and the like in the transportation process is avoided, the locking reliability of the lock catch is effectively ensured, the structure is simple, and the use is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is an exploded view of a high strength corrugated box according to the present disclosure;

FIG. 2 is an isometric view of a high strength corrugated box latch disclosed herein;

fig. 3 is a front full sectional view of a high strength corrugated box according to the present disclosure;

fig. 4 is a schematic view of a female buckle structure of a high-strength corrugated carton according to the present disclosure;

fig. 5 is a schematic view of a male buckle structure of a high-strength corrugated carton according to the present invention.

Description of reference numerals:

10. a box body;

20. a female buckle; 21. edge clamping; 22. a chute; 23. a stopper; 24. turning back a driving inclined plane; 25. flanging; 26. a cantilever;

30. a male buckle; 31. the claw can be bent; 32. a protrusion; 33. a recessed region; 34. and (5) dialing a plate.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1;

the invention provides a high-strength corrugated carton, which comprises:

the box body 10 with the concentric holes and the lock catch for locking the two layers of the paper boards of the box body 10 are formed after the two layers of the paper boards are overlapped, and the lock catch is provided with a female buckle 20 and a male buckle 30; the female buckle 20 and the male buckle 30 are both cylindrical hollow structures;

the male buckle 30 is provided with at least one pair of bendable claws 31, certainly, more than one pair of bendable claws 31 can be arranged according to requirements, each pair of bendable claws 31 are bilaterally and symmetrically distributed on two sides of the male buckle 30, the female buckle 20 is provided with a driving structure which forces the bendable claws 31 to be bent and enables the bendable claws 31 to keep bent, under the action of the driving structure, the male buckle 30 is inserted into the female buckle 20, the bendable claws 31 are contacted and bent with the driving structure, after locking, the bendable claws 31 extend towards the direction of the clamping edge 21 of the female buckle 20 so as to form interlocking with the clamping edge 21, so that two layers of paper boards are tightly overlapped and locked, the locking effectiveness is ensured, the phenomenon that the male buckle 30 rotates to separate from the female buckle 20 due to the influence of external factors such as vibration and the like in the transportation process is avoided, the locking reliability of the lock catch is effectively ensured, the structure is simple, and the use is convenient;

referring to fig. 3, preferably, the driving structure is a folding driving bevel 24 opening to the card edge 21, and after the male buckle 30 is inserted into the female buckle 20, the folding driving bevel 24 forces the foldable claw 31 to fold and fold back to contact each other. Specifically, the folding driving inclined plane 24 includes a guide surface and a folding surface connected to a bottom end of the guide surface, when the male buckle 30 is inserted into the female buckle 20, a tail end of the bendable claw 31 contacts, deforms and folds with the guide surface of the folding driving inclined plane 24, and the foldable claw is pressed against the folding surface of the folding driving inclined plane 24 after being folded, as shown in fig. 3, when the bendable claw 31 is pressed downward by an arrow direction, the male buckle 30 is pressed upward, so that the protrusion 32 of the male buckle 30 is pressed against and contacts with a tail end of the sliding slot 22 of the female buckle 20, and the male buckle 30 and the female buckle 20 are interlocked, and the sliding slot 22 of the female buckle 20 is an L-shaped slot disclosed in the prior art, which is not described in detail;

referring to fig. 3, preferably, the driving structure is a stopper 23 for covering the end opening of the female snap 20 far from the clamping edge 21, and a return driving inclined surface 24 with a ring structure is formed at the position of the stopper 23 corresponding to the inner wall of the female snap 20. The stopper 23 shields the opening at the top end of the cylinder of the box 20, so as to prevent foreign matters from entering the box 10 from the box 20, and a turning driving inclined plane 24 with an annular structure is formed at the position of the stopper 23 corresponding to the inner wall of the box 20, that is, the stopper 23 is of a revolving body structure, so that the male buckle 30 can be conveniently rotated after the male buckle 30 is inserted into the box 20, and the male buckle 30 and the box 20 are locked.

Preferably, the stopper 23 has at least one pair of cantilever arms 26 for fixedly connecting with the female buckle 20, and a passage through which the bendable claw 31 can pass and be rotatably displaced is formed between two adjacent cantilever arms 26. As shown in fig. 4, the stopper 23 is fixedly connected with the box 20 through a pair of cantilevers 26 to form an integral structure, of course, a plurality of pairs of cantilevers 26 can be added according to actual use requirements to enhance the connection strength between the stopper 23 and the box 20, a channel through which the bendable claw 31 can pass and can rotate and displace is formed between two adjacent cantilevers 26, and the structure enhances the strength of the top end of the box 20 through the cantilevers 26 to prevent the top end of the box 20 from deforming after being subjected to an external force during use;

preferably, the stopper 23 is of a frustum structure, the diameter of the stopper 23 at the inner end of the female buckle 20 is smaller, a flange 25 is formed at the exposed end of the stopper 23, and the upper surface of the flange 25 meets the outer wall of the frustum and is formed with an inclined surface extending obliquely upwards. The inclined plane is a turning plane of the turning driving inclined plane 24, the outer wall of the frustum is a guide plane of the turning driving inclined plane 24, as shown in fig. 3, when the male buckle 20 is horizontally placed, the turning plane of the turning driving inclined plane 24 has an inclined included angle with the horizontal plane, and the turning plane of the turning driving inclined plane 24 extends upwards from the end of the guide plane in an inclined manner, so that the bendable claw 31 of the male buckle 30 turns back, and the two layers of paperboards of the box body 10 are locked with the clamping edge 21 of the female buckle 20;

preferably, the outer diameter of the flange 25 is not larger than the outer diameter of the female buckle 20, so that the stopper 23 can pass through the opening smoothly when the diameter of the opening of the carton 10 is equal to the outer diameter of the female buckle 20.

Preferably, the pin 30 is elastic material, and nylon among the prior art can be chooseed for use to elastic material, or other easy elastic deformation's plastic material among the prior art, and pin 30 top integrated into one piece has a pair of bendable to grab 31, and the bendable grabs 31 outer wall and is formed with the crease, guarantees that the bendable grabs 31 outwards to buckle along the crease.

Preferably, the male buckle 30 is in clearance fit with the female buckle 20, so that the male buckle 30 is inserted into the female buckle 20, and the foldable driving inclined surface 24 forces the foldable claw 31 to be elastically deformed. The male buckle 30 is in clearance fit with the female buckle 20, so that the male buckle 30 can be conveniently and smoothly inserted into the female buckle 20, meanwhile, the bendable claw 31 can be conveniently and elastically deformed in the female buckle 20 at first, and the bendable claw can smoothly pass through a channel formed by the stop block 23 and the female buckle 20 after being deformed;

referring to fig. 5, preferably, the pair of foldable claws 31 are bent outward and then projected to form a linear structure on a cross section perpendicular to the axis of the male buckle 30, and in the locked state, the foldable claws 31 contact against the cardboard of the box 10, forcing the foldable claws 31 to bend inward, so that the protrusions 32 on the male buckle 30 contact against the ends of the L-shaped chutes 22 on the female buckle 20. Specifically, the pair of bendable claws 31 are bent and bent outward, and then projected on a section perpendicular to the axis of the male buckle 30 to form a linear structure, the projected section is fan-shaped, the contact area between the bendable claws 31 and the paperboard of the box body 10 is increased, creases are formed on the outer wall of the middle part of the bendable claws 31, the bendable claws 31 are divided into a deformation part and a bending part through the creases, the bendable claws 31 extend obliquely upward under the action of the bending surface of the bending driving inclined surface 24 after being bent along the creases, the distance between the tail ends of the bendable claws 31 and the clamping edge 21 is reduced, so that two layers of paperboards of the box body 10 are tightly attached, meanwhile, the paperboards provide opposite acting forces for the bendable claws 31 to promote the male buckle 30 to move upward, and the protrusions 32 of the male buckle 30 are abutted against the tail ends of the sliding grooves 22 of the female buckle 20 to form interlocking,

preferably, the bottom end of the male buckle 30 is provided with a recessed area 33, and the recessed area 33 is provided with a dial plate 34 for driving the male buckle 30 to rotate. When in use, the pin buckle 30 is driven to rotate by the poking plate 34;

in the technical scheme, the high-strength corrugated carton provided by the invention has the working principle that:

firstly, inserting the female buckle 20 into a paperboard opening of the box body 10, inserting the bendable claw 31 of the male buckle 30 into the female buckle 20 in an unbent state, wherein the bendable claw 31 is elastically deformed and outwards expanded after contacting with a conical surface of the stop block 23, the bent part of the bendable claw 31 is primarily bent, and the bent part is continuously bent when meeting with the upper surface of the flange 25, at the moment, the deformed part of the bendable claw 31 is in contact with the conical surface of the stop block 23 to elastically deform so as to expand the diameter of the male buckle 30, and the bent part of the bendable claw 31 is abutted against the flange 25 and extends towards the direction of the clamping edge 21 of the female buckle 20 so as to form interlocking with the clamping edge 21;

has the advantages that: the high-strength corrugated carton designed by the invention is locked by the lock catch, the male buckle of the lock catch is provided with the bendable claw, the female buckle is provided with the driving structure which forces the bendable claw to be bent and enables the bendable claw to keep the bendable claw to be bent, under the action of the driving structure, the male buckle is inserted into the female buckle, the bendable claw is in contact with the driving structure to be bent, and after the high-strength corrugated carton is locked, the bendable claw extends towards the clamping edge direction of the female buckle so as to form interlocking with the clamping edge, so that the two layers of paper boards are tightly overlapped to be locked, the locking effectiveness is ensured, the phenomenon that the male buckle is rotated to be separated from the female buckle due to the influence of external factors such as vibration and the like in the transportation process is avoided, the locking reliability of the lock catch is effectively ensured, the structure is simple, and the use is convenient.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A high strength corrugated box comprising:

the box body (10) with holes capable of being concentric after the two layers of paper boards are overlapped and a lock catch for locking the two layers of paper boards of the box body (10), wherein the lock catch is provided with a female buckle (20) and a male buckle (30), and is characterized in that;

the male buckle (30) is provided with at least one pair of bendable claws (31), the female buckle (20) is provided with a driving structure which forces the bendable claws (31) to bend and enables the bendable claws (31) to keep bending, and in a locking state, the bendable claws (31) extend towards the direction of the clamping edge (21) of the female buckle (20) so as to form interlocking with the clamping edge (21), so that two layers of paperboards are locked in a tightly overlapped mode.

2. A high strength corrugated box as claimed in claim 1, wherein;

the driving structure is a turning driving inclined plane (24) with an opening facing the clamping edge (21), the male buckle (30) is inserted into the female buckle (20), and the turning driving inclined plane (24) forces the bendable claw (31) to be bent and turned back to be in contact with each other.

3. A high strength corrugated box as claimed in claim 2, wherein;

the driving structure is used for covering a stop block (23) of the female buckle (20) far away from the opening at the end of the clamping edge (21), and the stop block (23) corresponds to the inner wall of the female buckle (20) and is provided with a turning driving inclined plane (24) in an annular structure.

4. A high strength corrugated box as claimed in claim 3, wherein;

the block (23) is provided with at least one pair of cantilever arms (26) fixedly connected with the female buckle (20), and a channel which can pass through the bendable claw (31) and can be displaced in a rotating mode is formed between every two adjacent cantilever arms (26).

5. The high strength corrugated box as claimed in claim 4, wherein;

the stop block (23) is of a frustum structure, the diameter of the inner end of the female buckle (20) is smaller in the stop block (23), a flanging (25) is formed at the exposed end of the stop block (23), and the upper surface of the flanging (25) is intersected with the outer wall of the frustum and is provided with an inclined plane which extends upwards in an inclined mode.

6. A high strength corrugated box as claimed in claim 5, wherein;

the outer diameter of the flanging (25) is not larger than the outer diameter of the female buckle (20), so that when the diameter of the opening of the paperboard of the box body (10) is equal to the outer diameter of the female buckle (20), the stop block (23) smoothly passes through the opening.

7. A high strength corrugated box as claimed in claim 2, wherein;

the male buckle (30) is made of elastic materials, the pair of bendable claws (31) is arranged at the top end of the male buckle, and creases are formed on the outer wall of the bendable claws (31), so that the bendable claws (31) can be bent along the creases.

8. The high strength corrugated box as claimed in claim 7, wherein;

the male buckle (30) is in clearance fit with the female buckle (20), so that the male buckle (30) is inserted into the female buckle (20), and the folding driving inclined plane (24) forces the bendable claw (31) to elastically deform.

9. A high strength corrugated box as claimed in claim 8, wherein;

the pair of bendable claws (31) are bent outwards and then projected to form a linear structure on the section perpendicular to the axis of the male buckle (30), and in a locked state, the bendable claws (31) are in contact with the paper board of the box body (10) in an abutting mode to force the bendable claws (31) to be bent inwards, so that the protrusions (32) on the male buckle (30) are in contact with the tail ends of the L-shaped sliding grooves (22) on the female buckle (20) in an abutting mode.

10. A high strength corrugated box as claimed in claim 9, wherein;

the bottom end part of the male buckle (30) is provided with a depressed area (33), and a shifting plate (34) for driving the male buckle (30) to rotate is arranged in the depressed area (33).