CN215098842U

CN215098842U - Self-bottom-buckling packaging box

Info

Publication number: CN215098842U
Application number: CN202121240996.5U
Authority: CN
Inventors: 邬晓冬; 钟胜; 罗朝晶; 郑少和; 杨秀真
Original assignee: Shenzhen Nine Stars Printing and Packaging Group Co Ltd
Current assignee: Shenzhen Nine Stars Printing and Packaging Group Co Ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-10
Anticipated expiration: 2031-06-04

Abstract

The utility model relates to a from knot end packing carton, including swing joint's first panel, second panel, third panel and fourth panel in proper order to and apron, first bottom plate, second bottom plate, third bottom plate, fourth bottom plate, first wing and reinforcing plate of shaking, first panel and fourth panel swing joint, the upper and lower both sides of first panel respectively with apron and first bottom plate swing joint, the downside and the second bottom plate swing joint of second panel, second bottom plate and first bottom plate swing joint, the downside and the third bottom plate swing joint of third panel, the downside of fourth panel with fourth bottom plate swing joint, fourth bottom plate and third bottom plate swing joint, the first upside swing joint who shakes wing and second panel or fourth panel, one side swing joint that first panel or fourth panel were kept away from to the reinforcing plate and first wing of shaking. When the self-bottom-buckling packaging box is molded, the reinforcing plate is used as the bearing plate, so that the bearing capacity of the self-bottom-buckling packaging box is greatly enhanced.

Description

Self-bottom-buckling packaging box

Technical Field

The utility model relates to the technical field of packaging boxes, especially, relate to a from bottom-buckling packaging box.

Background

Self-bottom-buckled packaging boxes are widely used in the packaging field, but the self-bottom-buckled packaging box in the prior art has an obvious defect: after the packing box is buckled and formed, the bottom of the packing box has poor bearing capacity, and when the packing box is used for packing a product with heavier quality, the product is easy to break through the supporting function of the bottom of the packing box and fall out, so that the packed object is crashed and damaged.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a self-bottom-locking packaging box with a strong bottom load-bearing capacity.

A self-bottom-buckling packaging box comprises a first panel, a second panel, a third panel and a fourth panel which are movably connected in sequence, and a cover plate, a first bottom plate, a second bottom plate, a third bottom plate, a fourth bottom plate, a first swing wing and a reinforcing plate, the first panel is movably connected with the fourth panel, the upper side and the lower side of the first panel are respectively movably connected with the cover plate and the first bottom plate, the lower side of the second panel is movably connected with the second bottom plate, the second bottom plate is movably connected with the first bottom plate, the lower side of the third panel is movably connected with the third bottom plate, the lower side of the fourth panel is movably connected with the fourth bottom plate, the fourth bottom plate is movably connected with the third bottom plate, the first swing wing is movably connected with the upper side of the second panel or the fourth panel, the reinforcing plate is movably connected with one side of the first swing wing, which is far away from the first panel or the fourth panel.

In one embodiment, the height of the first swing wing is equal to the height of the first panel.

In one embodiment, the length of the stiffener is equal to the length of the first panel and the width of the stiffener is equal to the length of the second panel.

In one embodiment, the box further comprises a second swing wing, and the second swing wing is movably connected with one side of the fourth panel or the second panel far away from the box bottom.

In one embodiment, the height of the second swing wing is equal to the height of the first panel.

In one embodiment, a first locking structure is provided between the second swing wing and the reinforcing plate.

In one embodiment, the fixed connection between the second bottom plate and the first bottom plate is specifically as follows: and a first connecting plate is arranged on the second bottom plate and fixedly connected with the first bottom plate.

In one embodiment, the fixed connection between the fourth bottom plate and the third bottom plate is specifically: and a second connecting plate is arranged on the fourth bottom plate and fixedly connected with the third bottom plate.

In one embodiment, a side of the cover plate, which is far away from the first panel, is provided with a latch, and the latch is movably connected with the cover plate.

In one embodiment, the insert tongue has a height equal to a height of the first panel.

Above-mentioned from bottom-fastened packaging box, the upside of second panel or fourth panel is equipped with first swing wing, one side that second panel or fourth panel were kept away from to first swing wing is equipped with the reinforcing plate, when from bottom-fastened packaging box shaping, the reinforcing plate that links with first swing wing is laid in the top from the bottom-fastened packaging box, when from bottom-fastened packaging box built-in article, article will directly place in the reinforcing plate top, regard the reinforcing plate as the bearing plate from bottom-fastened packaging box, thereby change the atress condition from bottom-fastened packaging box bottom-fastened from bottom-fastened packaging box, and then strengthen the bearing capacity from bottom-fastened packaging box by a wide margin.

Drawings

FIG. 1 is an expanded view of a self-retaining bottom packaging carton according to one embodiment;

FIG. 2 is a schematic perspective view of the self-retaining bottom packaging carton of FIG. 1 in a first state after being glued;

FIG. 3 is a top view of the self-retaining bottom packaging carton of FIG. 1 after gluing in a second state;

FIG. 4 is a bottom view of the self-retaining bottom packaging box of FIG. 1 after it has been formed;

FIG. 5 is an enlarged view of portion A of the self-retaining bottom packaging box of FIG. 2;

FIG. 6 is an enlarged view of portion B of the self-retaining bottom packaging box of FIG. 2;

FIG. 7 is an expanded view of another embodiment of a self-retaining bottom packaging carton;

FIG. 8 is a schematic perspective view of the self-retaining bottom packaging carton of FIG. 7 in a first state after being glued;

FIG. 9 is a top view of the self-retaining bottom packaging carton of FIG. 7 after gluing in a second state;

FIG. 10 is an expanded view of another embodiment of a self-retaining bottom packaging carton;

FIG. 11 is a schematic perspective view of the self-retaining bottom packaging carton of FIG. 10 in a first state after being glued;

FIG. 12 is a top view of the self-retaining bottom packaging carton of FIG. 11 after gluing in a second state;

FIG. 13 is an expanded view of another embodiment of a self-retaining bottom packaging carton;

FIG. 14 is a schematic perspective view of the self-retaining bottom packaging carton of FIG. 13 in a first state after being glued;

fig. 15 is a top view of the self-retaining packaging carton of fig. 13 in a second state after gluing.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" or "in communication with" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "vertical", "horizontal", "left", "right" and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The self-bottom-locking packaging box is mainly described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, a self-bottom-locking packing box according to an embodiment includes a first panel 10, a second panel 20, a third panel 30, and a fourth panel 40, a cover plate 12, a first bottom plate 11, a second bottom plate 21, a third bottom plate 31, a fourth bottom plate 41, a first swing wing 22, and a reinforcing plate 23, which are movably connected in sequence.

First panel 10, second panel 20, third panel 30 and fourth panel 40 swing joint in proper order, one side that second panel 20 was kept away from to first panel 10 and one side swing joint that third panel 30 was kept away from to fourth panel 40 to make first panel 10, second panel 20, third panel 30 and fourth panel 40 surround and form four sides from bottom-fastened packaging box, and first panel 10, second panel 20, third panel 30 and fourth panel 40 have the same height, its height has constituted the box body height from bottom-fastened packaging box.

Specifically, the upper and lower sides of the first panel 10 are movably connected to the cover plate 12 and the first bottom plate 11, respectively, the length of the cover plate 12 is equal to the length of the first panel 10, and the width of the cover plate 12 is equal to the length of the second panel 20, so that the cover plate 12 can close the upper surface of the self-bottom-locking packaging box during forming. The first bottom plate 11 is trapezoidal, the first bottom plate 11 serves as a part of the bottom of the self-buckling box, the outer side of the first bottom plate 11 is movably connected with the second bottom plate 21, a connecting tongue 101 is arranged on one side, away from the second panel 20, of the first panel 10, the connecting tongue 101 is movably connected with the first panel 10, and the connecting tongue 101 is used for being fixedly connected with the fourth panel 40. It should be understood that the first base plate 11 may have other shapes.

In this embodiment, a tongue 121 is further disposed on a side of the cover plate 12 away from the first panel 10, the tongue 121 is movably connected to the cover plate 12, and when the self-bottom-fastened packaging box is closed, the tongue 121 can be inserted into the box body to fix a side of the cover plate 12 away from the first panel 10.

Preferably, the height of the inserting tongue 121 is equal to the height of the first panel 10, so that after the inserting tongue 121 is inserted into the box body, the inserting tongue 121 can extend to the bottom of the box body and contact with the third bottom plate 31, thereby playing a supporting role and further improving the bearing capacity of the box surface of the self-bottom-fastened packaging box.

The left and right sides of the second panel 20 are movably connected with the first panel 10 and the third panel 30 respectively, the lower side of the second panel 20 is movably connected with the second bottom plate 21, and the second bottom plate 21 is movably connected with the first bottom plate 11.

Specifically, referring to fig. 1, fig. 2 and fig. 5, the second bottom plate 21 is triangular, a first connecting plate 211 is disposed on one side of the second bottom plate 21 close to the first bottom plate 11, the first connecting plate 211 is movably connected to the second bottom plate 21, and the first connecting plate 211 and the outer side of the first bottom plate 11 are stacked and fixedly connected by glue, so that the first bottom plate 11 and the second bottom plate 21 form a foldable first connecting body. It should be understood that the second floor 21 may have other shapes.

In the present embodiment, the upper side of the second panel 20 is movably connected to the first swing wing 22, and the first swing wing 22 is movably connected to the reinforcement plate 23.

Specifically, the length of the first swing wing 22 is equal to the length of the second panel 20, and the height thereof is equal to the height of the first panel 10, so that when the first swing wing 22 is folded into the box body, the first swing wing 22 and the second panel 20 are completely overlapped to form a double-layer structure, and the tail end thereof is in contact with the second bottom plate 21, thereby greatly increasing the bearing capacity of the second panel 20.

The reinforcing plate 23 is movably connected with one side of the first swing wing 22 far away from the second panel 20, and after the self-buckling box bottom is formed, the reinforcing plate 23 can be folded and laid on the upper side of the self-buckling box bottom to form a direct bearing surface of a packaged article, so that the stress condition of the self-buckling box bottom is changed.

Preferably, the length of the reinforcing plate 23 is equal to the length of the first panel 10, and the width is equal to the width of the second panel 20, so that the reinforcing plate 23 can be laid on the bottom of the whole self-fastening box after being folded, and the load-bearing capacity of the bottom of the self-fastening box is further enhanced by increasing the contact area of the reinforcing plate 23 and the bottom of the self-fastening box.

Preferably, a first locking structure is arranged between the reinforcing plate 23 and the second swing wing 42, and the reinforcing plate 23 can be prevented from being displaced by the first locking structure, so that the structural stability of the reinforcing plate 23 is greatly enhanced.

Specifically, a recessed first locking groove is formed on one side of the reinforcing plate 23 away from the first swing wing 22, and the first locking groove can be combined with a first locking notch formed on the second swing wing 42 to form a first locking structure.

In another embodiment, referring to fig. 10, the upper side of the second panel 20 is not connected to any component.

In another embodiment, referring to fig. 13, the upper side of the second panel 20 is movably connected to the second swing wing 42, and the second swing wing 42 is provided to increase the sealing performance of the self-bottom-locking packing box.

Preferably, the height of the second swing wing 42 is equal to the height of the second panel 20, and when the second swing wing 42 is folded toward the inner side of the packing box, the second swing wing 42 overlaps the second panel 20 to form a double structure, and the end thereof contacts the second bottom plate 21, thereby greatly enhancing the load-bearing capacity of the second panel 20.

Furthermore, one side of the second swing wing 42, which is far away from the second panel 20, is provided with a first bayonet, and the first bayonet can be combined with a first clamping groove formed on the reinforcing plate 23 to form a first locking structure, so as to be beneficial to enhancing the structural stability of the second swing wing 42.

The left and right sides of the third panel 30 are movably connected with the second panel 20 and the fourth panel 40 respectively, and the lower side of the third panel 30 is movably connected with the third bottom plate 31.

Specifically, the third panel 30 has the same length and width as the first panel 10, the third bottom panel 31 is trapezoidal, and the third bottom panel 31 is a part of the self-fastening box bottom, and the outer side of the third bottom panel 31 is movably connected with the fourth bottom panel 41. It should be understood that the third bottom plate 31 may have other shapes.

In this embodiment, the upper side of the third panel 30 is provided with a second bayonet, the joint of the cover plate 12 and the first panel 10 is provided with a second clamping groove matched with the second bayonet, when the second bayonet is combined with the second clamping groove, a second locking structure is formed, and by arranging the second locking structure, the cover plate 12 can be prevented from deforming, and the structural stability of the cover plate 12 is further improved.

The left side of the fourth panel 40 is movably connected with the third panel 30, the right side is fixedly connected with the connecting tongue 101, and the lower side of the fourth panel 40 is movably connected with the fourth bottom plate 41.

Specifically, referring to fig. 1, fig. 2 and fig. 6, the fourth bottom board 41 is triangular, a second connecting board 411 is disposed on a side of the fourth bottom board 41 close to the third bottom board 31, the second connecting board 411 is movably connected to the fourth bottom board 41, the second connecting board 411 and the third bottom board 31 are stacked and fixedly connected by glue, so that the third bottom board 31 and the fourth bottom board 41 form a foldable second connecting body, and the second connecting body and the first connecting body can cooperate to form a self-locking box bottom. It should be understood that the fourth bottom plate 41 may have other shapes.

In the present embodiment, the upper side of the fourth panel 40 is not connected to any member.

In another embodiment, referring to fig. 7, the upper side of the fourth bottom plate 41 is movably connected to the second swing wing 42, and the second swing wing 42 is disposed to increase the sealing performance of the self-bottom-locking packing box.

Preferably, the height of the second swing wing 42 is equal to the height of the fourth panel 40, and when the second swing wing 42 is folded toward the inside of the packing box, the second swing wing 42 overlaps the fourth panel 40 to form a double structure, and the end thereof contacts the fourth bottom plate 41, thereby greatly enhancing the load-bearing capacity of the fourth panel 40.

Furthermore, a first bayonet is disposed on a side of the second swing wing 42 away from the fourth panel 40, and the first bayonet can be combined with a first clamping groove disposed on the reinforcing plate 23 to form a first locking structure, so as to facilitate enhancing the structural stability of the second swing wing 42.

In another embodiment, referring to fig. 10 and 13, the upper side of the fourth panel 40 is movably connected to the first swing wing 22, and the first swing wing 22 is movably connected to the reinforcing plate 23.

Specifically, the length of the first swing wing 22 is equal to the length of the fourth panel 40, and the height thereof is equal to the height of the fourth panel 40, so that when the first swing wing 22 is folded into the box body, the first swing wing 22 and the fourth panel 40 are completely overlapped to form a double-layer structure, and the tail end thereof is in contact with the fourth bottom plate 41, thereby greatly increasing the load-bearing capacity of the fourth panel 40.

The reinforcing plate 23 is movably connected with one side of the first swing wing 22 far away from the fourth panel 40, and after the self-fastening box bottom is formed, the reinforcing plate 23 can be folded and laid on the upper side of the self-fastening box bottom to form a direct bearing surface of a packaged article, so that the stress condition of the self-fastening box bottom is changed.

Specifically, one side of the reinforcing plate 23, which is far away from the first swing wing 22, is provided with a recessed first clamping groove, one side of the second swing wing 42, which is far away from the fourth panel 40, is provided with a first clamping opening matched with the first clamping groove, and the first clamping groove and the first clamping opening form a first locking structure when combined.

Above-mentioned from bottom-hinged packing carton, the upside of second panel 20 or fourth panel 40 is equipped with first wing 22, one side that first wing 22 kept away from second panel 20 or fourth panel 40 is equipped with reinforcing plate 23, when from bottom-hinged packing carton shaping, reinforcing plate 23 that links with first wing 22 lays in the top from the bottom-hinged packing carton, when from bottom-hinged packing carton embeds article, article will directly place in reinforcing plate 23 top, regard reinforcing plate 23 as the bearing plate from bottom-hinged packing carton, thereby change the atress condition from bottom-hinged packing carton bottom-hinged, and then strengthen the bearing capacity from bottom-hinged packing carton by a wide margin.

Specific examples are as follows.

Example 1

Referring to fig. 1 to 6, a self-bottom-locking packing box according to an embodiment includes a first panel 10, a second panel 20, a third panel 30, and a fourth panel 40, a cover plate 12, a first bottom plate 11, a second bottom plate 21, a third bottom plate 31, a fourth bottom plate 41, a first swing wing 22, and a reinforcing plate 23, which are movably connected in sequence.

First panel 10 and fourth panel 40 swing joint, the upper and lower both sides of first panel 10 respectively with apron 12 and first bottom plate 11 swing joint, one side that first panel 10 was kept away from to apron 12 is equipped with inserts tongue 121, the downside and the second bottom plate 21 swing joint of second panel 20 form folding first connector, second bottom plate 21 and first bottom plate 11 swing joint, the downside and the third bottom plate 31 swing joint of third panel 30, the downside and the fourth bottom plate 41 swing joint of fourth panel 40, fourth bottom plate 41 and third bottom plate 31 swing joint form folding second connector. In the present embodiment, the first swing wing 22 is movably connected to the upper side of the second panel 20, the reinforcing plate 23 is movably connected to the side of the first swing wing 22 away from the second panel 20, the length of the reinforcing plate 23 is equal to the length of the first panel 10, the width is equal to the width of the second panel 20, and the height of the tongue 121 is equal to the height of the first panel 10.

Above-mentioned from bottom-hinged packing carton, the upside of second panel 20 is equipped with first wing 22, one side that second panel 20 was kept away from to first wing 22 is equipped with reinforcing plate 23, when from bottom-hinged packing carton shaping, the reinforcing plate 23 that links with first wing 22 is laid in the top from the bottom-hinged packing carton, when from bottom-hinged packing carton built-in article, article will directly place in reinforcing plate 23 top, regard reinforcing plate 23 as the bearing plate from bottom-hinged packing carton, thereby change the atress condition from bottom-hinged packing carton bottom-hinged, and then strengthen the bearing capacity from bottom-hinged packing carton by a wide margin.

Example 2

Referring to fig. 7 to 9, the self-bottom-locking packing box of the present embodiment is similar to the self-bottom-locking packing box of embodiment 1, except that a second swing wing 42 is disposed on the upper side of the fourth panel 40, the second swing wing 42 is movably connected to the fourth panel 40, and the height of the second swing wing 42 is equal to the height of the fourth panel 40.

Above-mentioned from bottom-hinged packing carton, the upside of second panel 20 is equipped with first wing 22, one side that second panel 20 was kept away from to first wing 22 is equipped with reinforcing plate 23, when from bottom-hinged packing carton shaping, the reinforcing plate 23 that links with first wing 22 is laid in the top from the bottom-hinged packing carton, when from bottom-hinged packing carton built-in article, article will directly place in reinforcing plate 23 top, regard reinforcing plate 23 as the bearing plate from bottom-hinged packing carton, thereby change the atress condition from bottom-hinged packing carton bottom-hinged, and then strengthen the bearing capacity from bottom-hinged packing carton by a wide margin. In addition, through setting up second swing wing 42, can make the fourth panel 40 of self-bottom-buckling packaging box form bilayer structure, promote the bearing capacity of self-bottom-buckling packaging box body by a wide margin.

Example 3

Referring to fig. 10 to 12, the self-bottom-locking packing box of an embodiment includes a first panel 10, a second panel 20, a third panel 30, and a fourth panel 40, a cover plate 12, a first bottom plate 11, a second bottom plate 21, a third bottom plate 31, a fourth bottom plate 41, a first swing wing 22, and a reinforcing plate 23, which are movably connected in sequence.

First panel 10 and fourth panel 40 swing joint, the upper and lower both sides of first panel 10 respectively with apron 12 and first bottom plate 11 swing joint, one side that first panel 10 was kept away from to apron 12 is equipped with inserts tongue 121, the downside and the second bottom plate 21 swing joint of second panel 20 form folding first connector, second bottom plate 21 and first bottom plate 11 swing joint, the downside and the third bottom plate 31 swing joint of third panel 30, the downside and the fourth bottom plate 41 swing joint of fourth panel 40, fourth bottom plate 41 and third bottom plate 31 swing joint form folding second connector. In the present embodiment, the first swing wing 22 is movably connected to the upper side of the fourth panel 40, the reinforcing plate 23 is movably connected to the side of the first swing wing 22 away from the fourth panel 40, the length of the reinforcing plate 23 is equal to the length of the first panel 10, the width is equal to the width of the second panel 20, and the height of the tongue 121 is equal to the height of the first panel 10.

Above-mentioned from bottom-hinged packing carton, the upside of fourth panel 40 is equipped with first wing 22, one side that fourth panel 40 was kept away from to first wing 22 is equipped with reinforcing plate 23, when from bottom-hinged packing carton shaping, the reinforcing plate 23 that links with first wing 22 is laid in the top from the bottom-hinged packing carton, when from bottom-hinged packing carton built-in article, article will directly place in reinforcing plate 23 top, regard reinforcing plate 23 as the bearing plate from bottom-hinged packing carton to change from the atress condition from bottom-hinged packing carton bottom-hinged, and then strengthen the bearing capacity from bottom-hinged packing carton by a wide margin.

Example 4

Referring to fig. 13 to 15, the self-bottom-locking packing box of the present embodiment is similar to the self-bottom-locking packing box of embodiment 3, except that a second swing wing 42 is disposed on the upper side of the second panel 20, the second swing wing 42 is movably connected to the second panel 20, and the height of the second swing wing 42 is equal to the height of the second panel 20.

Above-mentioned from bottom-hinged packing carton, the upside of fourth panel 40 is equipped with first wing 22, one side that fourth panel 40 was kept away from to first wing 22 is equipped with reinforcing plate 23, when from bottom-hinged packing carton shaping, the reinforcing plate 23 that links with first wing 22 is laid in the top from the bottom-hinged packing carton, when from bottom-hinged packing carton built-in article, article will directly place in reinforcing plate 23 top, regard reinforcing plate 23 as the bearing plate from bottom-hinged packing carton to change from the atress condition from bottom-hinged packing carton bottom-hinged, and then strengthen the bearing capacity from bottom-hinged packing carton by a wide margin. In addition, through setting up second swing wing 42, can make the second panel 20 of self-bottom-buckled packing carton form bilayer structure, promote the bearing capacity of self-bottom-buckled packing carton box body by a wide margin.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a from knot end packing carton, its characterized in that, including swing joint's first panel, second panel, third panel and fourth panel in proper order to and apron, first bottom plate, second bottom plate, third bottom plate, fourth bottom plate, first wing and reinforcing plate shake, first panel with fourth panel swing joint, the upper and lower both sides of first panel respectively with apron and first bottom plate swing joint, the downside of second panel with second bottom plate swing joint, the second bottom plate with first bottom plate swing joint, the downside of third panel with third bottom plate swing joint, the downside of fourth panel with fourth bottom plate swing joint, the fourth bottom plate with third bottom plate swing joint, first wing with the upside swing joint of second panel or fourth panel, the reinforcing plate with the first wing shake one side swing joint of wing keeping away from first panel or fourth panel .

2. The self-retaining bottom pack according to claim 1, wherein the height of the first swing wing is equal to the height of the first panel.

3. A self-retaining bottom pack according to claim 2 wherein the reinforcing panel has a length equal to the length of the first panel and a width equal to the length of the second panel.

4. The self-retaining bottom packaging carton according to claim 3, further comprising a second swing wing, wherein the second swing wing is movably connected to the fourth panel or a side of the second panel remote from the carton bottom.

5. A self-retaining bottom pack according to claim 4, wherein the height of the second swing wing is equal to the height of the first panel.

6. A self-retaining bottom pack according to claim 5, wherein a first locking formation is provided between the second swing wing and the reinforcing panel.

7. The self-bottom-hinged packaging box according to claim 1, wherein the fixed connection of the second bottom plate and the first bottom plate is specifically:

and a first connecting plate is arranged on the second bottom plate and fixedly connected with the first bottom plate.

8. The self-bottom-hinged packaging box according to claim 7, wherein the fixed connection of the fourth bottom plate and the third bottom plate is specifically:

and a second connecting plate is arranged on the fourth bottom plate and fixedly connected with the third bottom plate.

9. The self-retaining bottom packaging box according to claim 1, wherein a tongue is provided on a side of the lid plate remote from the first panel, the tongue being movably connected to the lid plate.

10. A self-retaining bottom pack according to claim 9 wherein the tab is of the same height as the first panel.