CN221317120U - Paper box - Google Patents

Abstract

The embodiment of the utility model provides a paper box, which comprises a box body, a box cover and a dustproof plate, wherein the box body is provided with an inner cavity for storing objects and an opening communicated with the inner cavity; the box cover is connected with one side edge of the opening, and can rotate to a closing position for closing the opening relative to the box body; the first side of the dust-proof plate is connected with the edge of the opening close to the box cover, and when the box cover rotates to a closed position, the dust-proof plate is positioned at the inner side of the box cover facing the inner cavity; the extension length of the dustproof plate is 75-97% of the length of the paper box along the length direction of the paper box, and a first notch for the fingers to extend in is formed in the second side of the dustproof plate opposite to the first side. According to the utility model, the length of the dustproof plate is increased, so that the contact of hands with objects in the box can be avoided, and the anti-theft performance of the paper box is improved. The second side that dust guard and first side set up relatively still has first breach, even the distance between dust guard and the curb plate shortens along with the extension of dust guard, also can not hinder the operating personnel to open the dust guard.

Description

Paper box

Technical Field

The utility model relates to the technical field of packaging, in particular to a paper box.

Background

The paper box is widely applied to the express industry, and in a typical paper box structure, the box comprises a box body and a box cover connected to the upper side of the box body, in addition, a dust-proof plate is further arranged on the upper side of the box body and used for preventing external sundries from entering the box body, a certain anti-theft effect can be achieved, and the possibility that hands of people stretch into the box cover and the dust-proof plate to contact with internal objects still exists in a common paper box.

Disclosure of utility model

The embodiment of the utility model mainly aims to provide a paper box, which aims to improve anti-theft performance.

To achieve the above object, a first aspect of an embodiment of the present utility model provides a paper cassette comprising:

The box body is provided with an inner cavity for storing objects and an opening communicated with the inner cavity;

The box cover is connected to one side edge of the opening and can rotate to a closing position for closing the opening relative to the box body;

The first side of the dustproof plate is connected with the edge, close to the box cover, of the opening, and when the box cover rotates to the closed position, the dustproof plate is positioned on the inner side, facing the inner cavity, of the box cover;

The extension length of the dustproof plate is 75-97% of the length of the paper box along the length direction of the paper box, and a first notch for a finger to extend in is formed in the second side of the dustproof plate opposite to the first side.

The paper box provided by the embodiment of the utility model has at least the following beneficial effects:

According to the utility model, the length of the dustproof plate is increased, so that the contact of hands with objects in the box can be avoided, and the anti-theft performance of the paper box is improved. In addition, the second side that dust guard and first side set up relatively still has first breach, and first breach can supply the finger to stretch into, so, even the distance between dust guard and the curb plate shortens along with the extension of dust guard, also can not hinder operating personnel to open the dust guard.

In some embodiments, the number of the dustproof plates is two, the two dustproof plates are respectively connected to two side edges of the opening, which are adjacent to the box cover and are oppositely arranged, and when the box cover is in the closed position, the two dustproof plates are arranged in a stacked mode.

In some embodiments, the box body comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially arranged along the circumferential direction of the box body, and the box body further comprises a fifth side plate, wherein the fifth side plate is connected to the upper side edge of the third side plate and is positioned on the inner side of the third side plate facing the inner cavity.

In some embodiments, the box further includes a pad connected to the lower edge of the fifth side plate and extending toward the first side plate.

In some embodiments, the pad extends 80% to 97% of the width of the carton along the width of the carton, and a side of the pad facing the first side panel has a second notch for a finger to extend into.

In some embodiments, the case includes a first side plate, a second side plate, a third side plate, and a fourth side plate sequentially disposed along a circumferential direction of the case;

the box cover comprises a top plate and a plugboard, one side of the top plate is connected to the upper side edge of the first side plate, and the opposite side is connected to the plugboard;

The plug board is provided with a first locking structure, the first side board is provided with a second locking structure, when the box cover is positioned at the closed position, the plug board is inserted into the inner cavity, and the first locking structure and the second locking structure are mutually locked.

In some embodiments, the top panel has a first frangible line disposed therein and extending to opposite side edges of the top panel along a direction parallel to a junction of the top panel and the second side panel, respectively.

In some embodiments, the first locking structure comprises a locking groove and the second locking structure comprises a locking tongue, wherein:

the width of the locking groove is gradually increased along the direction that the lock tongue enters the locking groove;

And/or the width of the lock tongue gradually decreases along the direction that the lock tongue enters the locking groove.

In some embodiments, the box body further includes a fifth side plate, the fifth side plate is connected to an upper side edge of the third side plate and is located at an inner side of the third side plate facing the inner cavity, an avoidance gap is formed at an upper side edge of the fifth side plate, and a projection of the second locking structure on the fifth side plate is located in the avoidance gap.

In some embodiments, the case includes a first side plate, a second side plate, a third side plate, and a fourth side plate sequentially disposed along a circumferential direction of the case;

The box body further comprises a first bottom plate, a second bottom plate and two connecting plates, wherein the first bottom plate is connected with the lower side edge of the second side plate, the second bottom plate is connected with the lower side edge of the fourth side plate, the connecting plates are provided with bending lines, the connecting plates are divided into a first wing plate and a second wing plate by the bending lines, the first wing plate of one connecting plate is connected with the lower side edge of the first side plate, the second wing plate is adhered to the first bottom plate, the first wing plate of the other connecting plate is connected with the lower side edge of the third side plate, and the second wing plate is adhered to the second bottom plate.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a carton of an embodiment of the present utility model after opening;

Fig. 2 is a schematic perspective view of a carton in accordance with an embodiment of the utility model;

FIG. 3 is a schematic view showing a portion of the pad after bending to form a second bottom;

FIG. 4 is a partial schematic view showing the interlocking of the first locking structure and the second locking structure.

Reference numerals:

A paper cassette 100;

The box 110, the first side plate 111, the bonding plate 1111, the second side plate 112, the third side plate 113, the second locking structure 1131, the fourth side plate 114, the fifth side plate 115, the avoidance notch 1151, the first bottom plate 116, the second bottom plate 117, the connecting plate 118, the first wing plate 1181, the second wing plate 1182, the bending line 1183, the backing plate 119 and the second notch 1191;

Lid 120, top plate 121, first frangible line 1211, tab 122, first locking structure 1221;

A dust-proof plate 130 and a first notch 131.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, mounting, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in connection with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the related art, the dust guard is connected to the box body of the paper box through one side edge of the dust guard, when an object needs to be packaged by the paper box, an operator is required to manually fold the dust guard relative to the box body, the dust guard is positioned at an opening above the box body, and then the box cover is folded to be positioned above the dust guard, however, the risk that hands of a person extend into a gap between the box cover and the dust guard to contact the object in the box body still exists in the paper box, and the anti-theft effect is poor. Based on the above, the utility model provides the paper box, which can strengthen the anti-theft effect and is convenient for opening the dust-proof plate.

For ease of understanding, the paperboard in the unfolded state will be described first. Referring to fig. 1, a relatively thick dotted line with a large middle distance in fig. 1 is a bending line, and a main structure of the paperboard includes a first side plate 111, a second side plate 112, a third side plate 113 and a fourth side plate 114 connected in sequence in a left-to-right direction of the drawing, and a bending line is provided between adjacent side plates, so that the adjacent side plates can be bent.

The upper edge of the first side plate 111 is connected with a top plate 121, the upper edge of the top plate 121 is connected with a plugboard 122, the upper edge of the third side plate 113 is connected with a fifth side plate 115, the upper edge of the fifth side plate 115 is connected with a base plate 119, and the lower edges of the first side plate 111 and the third side plate 113 are connected with a connecting plate 118. The upper edges of the second side plate 112 and the fourth side plate 114 are connected with a dust-proof plate 130, the lower edge of the second side plate 112 is connected with a first bottom plate 116, and the lower edge of the fourth side plate 114 is connected with a second bottom plate 117.

Referring to fig. 2, there is shown a schematic perspective view of a first embodiment of a carton 100 according to the present utility model, in which a lid 120 is in an open state, and the carton 100 according to the present embodiment includes a box body 110 and a lid 120.

The case 110 may be a rectangular case having an inner cavity for storing objects therein, and an opening communicating with the inner cavity at the top, through which an operator can insert objects into the case or remove objects from the case. In some embodiments, the main body portion of the case 110 is assembled by the first side plate 111, the second side plate 112, the third side plate 113, and the fourth side plate 114 in fig. 1.

The cover 120 is coupled to one side edge of the opening, and as shown in fig. 2, the cover 120 is coupled to the rear side edge of the opening. A bending line is provided between the cover 120 and the case 110, through which the cover 120 can rotate with respect to the case 110, and when the cover 120 rotates to a closed position, the cover 120 can close the opening. In some embodiments, lid 120 includes top plate 121 and plugboard 122 of fig. 1.

In this embodiment, the paper box further has a dust-proof plate 130, wherein a first side of the dust-proof plate 130 is connected to an edge of the opening adjacent to the box cover 120, and as shown in fig. 2, both a left side edge and a right side edge of the opening are connected with the dust-proof plate 130. When the cover 120 is rotated to the closed position, the dust guard 130 is positioned at an inner side (e.g., lower side) of the cover 120 toward the cavity. It can be understood that when the lid 120 is in the closed position, a gap still exists between the lid 120 and the dust-proof plate 130, through which a human hand can extend, so in this embodiment, along the length direction of the paper box, for example, the left-right direction in fig. 2, the extending length of the dust-proof plate 130 is 75% to 97% of the length of the paper box, so that the shielding range of the dust-proof plate 130 can be increased, it should be understood that, after the lid 120 and the box body 110 are locked with each other, under the premise of not damaging the paper box, the gap width between the lid 120 and the dust-proof plate 130 has a limit, so that the extending distance of the human hand also has a limit, in this embodiment, by increasing the length of the dust-proof plate 130, the extending distance of the human hand is longer than the maximum distance that the human hand can extend in general cases, the human hand can be prevented from contacting the objects in the box, the anti-theft performance of the paper box is increased, and the longer the length of the dust-proof plate 130 can be understood is better.

After the dust-proof plate 130 grows, the distance between the dust-proof plate 130 and the side plate of the carton will be shortened, and the longer the length of the dust-proof plate 130 is, the shorter the distance between the dust-proof plate 130 and the side plate is, taking the left dust-proof plate 130 in fig. 2 as an example, the distance between the right end of the left dust-proof plate 130 and the second side plate 112 will be reduced along with the length of the left dust-proof plate 130, so that the fingers of the operator can not extend into the space between the dust-proof plate 130 and the side plate to open the dust-proof plate when the carton is disassembled. Taking the example shown in fig. 1 as an example, the first notch 131 is disposed at the upper edge of the dust-proof plate 130, taking the example shown in fig. 2 as an example, for the dust-proof plate 130 on the left side, the first notch 131 is disposed at the right edge, and for the dust-proof plate 130 on the right side, the first notch 131 is disposed at the left edge.

The first notch 131 is sized and shaped for insertion of a finger, and as shown in fig. 1 and 2, the first notch 131 is a semicircular notch. The first notch 131 may be formed by cutting a cardboard.

On the basis of the first embodiment, in some embodiments of the present utility model, two dust-proof plates 130 are provided, and the two dust-proof plates 130 are respectively connected to two opposite side edges of the opening, so that dust prevention and theft prevention on two sides of the box body can be realized. When the cover 120 is in the closed position, the two dust plates 130 are stacked, interference between the dust plates 130 can be avoided, and the stacked portion can further enhance the theft preventing capability.

Specifically, taking the example shown in fig. 2, one dust-proof plate 130 is connected to the left side edge of the opening, the other dust-proof plate 130 is connected to the right side edge of the opening, and the right end of the left dust-proof plate 130 is stacked under the right dust-proof plate 130.

When the dustproof plate 130 is provided in two, in some embodiments of the present utility model, the case 110 includes a first side plate 111, a second side plate 112, a third side plate 113 and a fourth side plate 114 sequentially arranged along the circumferential direction of the case 110, in some embodiments, the first side plate 111, the second side plate 112, the third side plate 113 and the fourth side plate 114 in fig. 1 may be bent, and the first side plate 111 and the fourth side plate 114 may be connected to form a main structure of the case 110, specifically, an adhesive plate 1111 is provided at a left edge of the first side plate 111 in fig. 1, and the adhesive plate 1111 is adhered to the fourth side plate 114. Referring to fig. 2, the first side plate 111 is bent to form a rear side plate of the case 110, the third side plate 113 is bent to form a front side plate of the case 110, and the second side plate 112 and the fourth side plate 114 form a left side plate and a right side plate of the case 110, respectively.

In this embodiment, the cover 120 is connected to the upper edge of the first side plate 111, one dust-proof plate 130 is connected to the upper edge of the second side plate 112, and the other dust-proof plate 130 is connected to the upper edge of the fourth side plate 114, so that the two dust-proof plates 130 are located at opposite sides of the opening.

Based on the first embodiment, in some embodiments of the present utility model, the box 110 includes a first side plate 111, a second side plate 112, a third side plate 113 and a fourth side plate 114 sequentially disposed along the circumferential direction of the box 110, and in some embodiments, the first side plate 111, the second side plate 112, the third side plate 113 and the fourth side plate 114 in fig. 1 may be bent, and the first side plate 111 and the fourth side plate 114 may be connected to form a main body structure of the box 110. In this embodiment, the box body 110 further includes a fifth side plate 115, referring to fig. 1, the fifth side plate 115 is connected to the upper edge of the third side plate 113, and when the fifth side plate 115 is bent, the connection between the fifth side plate 115 and the third side plate 113 is still maintained at the upper side of the third side plate 113 (the fifth side plate 115), but the fifth side plate 115 is located inside the third side plate 113 facing the inner cavity and is stacked with the third side plate 113, so that the third side plate 113 and the fifth side plate 115 together form a front side plate of the carton, and the strength of the front side plate can be increased.

When the case 110 further includes the fifth side plate 115, referring to fig. 1 to 3, in some embodiments of the present utility model, the case 110 further includes a pad 119, and when the carton shown in fig. 2 is folded from the cardboard in fig. 1, the pad 119 is connected to the lower edge of the fifth side plate 115 and extends toward the first side plate 111, such that the pad 119 is horizontally or substantially horizontally disposed, thereby reinforcing the bottom of the carton.

When the case 110 further includes the pad 119, in some embodiments of the present utility model, the pad 119 extends 80% to 97% of the width of the carton in the width direction of the carton, for example, the front-rear direction in fig. 2, so that most of the bottom area of the carton can be covered for better reinforcement.

When the extension length of the pad 119 is longer, the distance between the pad 119 and the side plate of the carton will be shortened, and the longer the length of the pad 119 is, the shorter the distance between the pad 119 and the side plate is, for example, as shown in fig. 2, the distance between the rear end of the pad 119 and the first side plate 111 will be reduced along with the length of the pad 119, so that the operator's finger will not extend between the pad 119 and the side plate to lift the pad 119, and in this embodiment, the side of the pad 119 facing the first side plate 111 has the second notch 1191, and the second notch 1191 can allow the finger to extend, so that the operator will not be hindered from lifting the pad 119 even if the distance between the pad 119 and the side plate is very short. As shown in fig. 2, the second notch 1191 is disposed at a rear edge of the pad 119.

The second notch 1191 is sized and shaped for a finger to extend into, as shown in fig. 1 and 2, and the second notch 1191 is a semicircular notch. The second notch 1191 may be formed by cutting a cardboard.

Based on the first embodiment, in some embodiments of the present utility model, the box 110 includes a first side plate 111, a second side plate 112, a third side plate 113 and a fourth side plate 114 sequentially disposed along the circumferential direction of the box 110, and in some embodiments, the first side plate 111, the second side plate 112, the third side plate 113 and the fourth side plate 114 in fig. 1 may be bent, and the first side plate 111 and the fourth side plate 114 may be connected to form a main body structure of the box 110.

In this embodiment, the box cover 120 includes a top plate 121 and a plugboard 122, one side of the top plate 121 is connected to the upper edge of the first side plate 111, the opposite side is connected to the plugboard 122, in fig. 1, the lower side of the top plate 121 is connected to the upper edge of the first side plate 111, the upper side is connected to the lower edge of the plugboard 122, in fig. 2, the rear side of the top plate 121 is connected to the upper edge of the first side plate 111, the front side is connected to the upper edge of the plugboard 122, and the plugboard 122 is located at the front side of the box body 110 and corresponds to the front side plate of the box body 110.

In this embodiment, referring to fig. 1, the plug board 122 has a first locking structure 1221, the third side board 113 has a second locking structure 1131, and when the plug board 122 is plugged into the cavity, the first locking structure 1221 and the second locking structure 1131 are locked with each other, so that the box cover 120 cannot be opened without damaging the paper box, thereby achieving the anti-theft effect.

When the carton includes the first locking structure 1221 and the second locking structure 1131, referring to fig. 1, 2 and 4, the first locking structure 1221 includes a locking groove, the second locking structure 1131 includes a locking tongue, wherein the locking groove is a notch formed by cutting a cardboard, the locking tongue is also formed by cutting a cardboard, and a part (for example, a lower side in fig. 1) of the locking tongue is kept connected to the third side plate 113, and another part (for example, an upper end) of the locking tongue can be opened relative to the third side plate 113, wherein a solid line of an outer contour of the locking tongue and the locking groove in fig. 1 represents a cut line. When the cardboard is folded into a carton, the locking groove will rotate 180 ° from the position in fig. 1, so that the upper end of the locking tongue can pass through the locking groove and be located inside the plunger 122 facing away from the third side plate 113 as the plunger 122 is inserted downward.

In some embodiments, the width of the locking bolt gradually decreases along the direction of the locking bolt entering the locking groove, for example, from bottom to top in fig. 2 and 4, so as to present a tapered structure with a smaller top and a larger bottom.

In other embodiments, the width of the locking groove gradually increases along the direction of the locking bolt entering the locking groove, for example, from bottom to top in fig. 2 and 4, so that the locking bolt appears as an inverted conical groove with a large top and a small bottom, and thus, the locking bolt can abut against the lower side edge of the inverted conical groove, and the locking bolt can be prevented from being separated from the locking groove.

It should be noted that, the above embodiments may be combined, that is, along the direction in which the locking bolt enters the locking groove, the width of the locking bolt is gradually reduced, and the width of the locking groove is gradually increased, so as to achieve a better locking effect.

When the carton includes the first locking structure 1221 and the second locking structure 1131, in some embodiments of the present utility model, referring to fig. 2, the top panel 121 has a first tear line 1211, and the first tear line 1211 extends along a direction parallel to a connection between the top panel 121 and the second side panel 112 (e.g., a left-right direction in fig. 2), and two ends of the first tear line 1211 respectively extend to opposite side edges (e.g., a left side edge and a right side edge in fig. 2) of the top panel 121, so that the lid 120 can be opened after the top panel 121 is torn from the first tear line 1211. In the embodiment shown in fig. 2, the first frangible line 1211 is disposed adjacent to the junction of the top panel 121 and the second side panel 112, and in other embodiments, the first frangible line 1211 may be disposed at other locations, such as the middle of the top panel 121.

When the carton includes the first locking structure 1221 and the second locking structure 1131, in some embodiments of the present utility model, referring to fig. 1 and 4, the carton body 110 further includes a fifth side plate 115, referring to fig. 1, the fifth side plate 115 is connected to an upper edge of the third side plate 113, and when the fifth side plate 115 is bent, the fifth side plate 115 is located inside the third side plate 113 facing the inner cavity and is stacked with the third side plate 113, so that the third side plate 113 and the fifth side plate 115 together form a front side plate of the carton, and the strength of the front side plate can be increased.

In this embodiment, the fifth side plate 115 has an avoidance notch 1151, and the projection of the second locking structure 1131 on the fifth side plate 115 is located in the avoidance notch 1151, and when the plug board 122 of the box cover 120 is plugged into the inner cavity, the second locking structure 1131 can pass through the fifth side plate 115 through the avoidance notch 1151, so as to be locked with the first locking structure 1221 on the plug part 122.

In some embodiments, the relief notch 1151 is disposed at an upper edge of the fifth side plate 115.

Based on the first embodiment, in some embodiments of the present utility model, the box 110 includes a first side plate 111, a second side plate 112, a third side plate 113 and a fourth side plate 114 sequentially disposed along the circumferential direction of the box 110, and in some embodiments, the first side plate 111, the second side plate 112, the third side plate 113 and the fourth side plate 114 in fig. 1 may be bent, and the first side plate 111 and the fourth side plate 114 may be connected to form a main body structure of the box 110.

In this embodiment, the box 110 further includes a first bottom plate 116, a second bottom plate 117, and two connecting plates 118, referring to fig. 1, the first bottom plate 116 is connected to the lower edge of the second side plate 112, the second bottom plate 117 is connected to the lower edge of the fourth side plate 114, and the two connecting plates 118 are respectively connected to the lower edges of the first side plate 111 and the third side plate 113.

After the cardboard is folded, the first bottom plate 116, the second bottom plate 117 and the two connecting plates 118 together form the bottom of the box 110, the connecting plates 118 have a folding line 1183, the folding line 1183 divides the connecting plates 118 into a first wing plate 1181 and a second wing plate 1182, wherein the first wing plate 1181 of one connecting plate 118 is connected to the lower side edge of the first side plate 111, the second wing plate 1182 is adhered to the first bottom plate 116, the first wing plate 1181 of the other connecting plate 118 is connected to the lower side edge of the third side plate 113, and the second wing plate 1182 is adhered to the second bottom plate 117.

In this embodiment, the connecting plate 118 is provided with the kink line 1183 for the second pterygoid lamina 1182 can overturn relative to first pterygoid lamina 1181, and when just two connecting plates 118 are located the outside of first bottom plate 116, second bottom plate 117 respectively, can turn over second pterygoid lamina 1182 towards the direction of keeping away from the box, then to second pterygoid lamina 1182 spraying glue solution or set up the glue film, then reset second pterygoid lamina 1182 and can realize bonding, convenient operation.

In some embodiments, if the box 110 further includes the fifth side plate 115 and the pad 119, the first bottom plate 116, the second bottom plate 117 and the two connecting plates 118 form a first bottom of the carton, and the pad 119 is stacked on the first bottom to form a second bottom, so that the overall strength of the carton is higher.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. A carton, comprising:

The box body is provided with an inner cavity for storing objects and an opening communicated with the inner cavity;

The box cover is connected to one side edge of the opening and can rotate to a closing position for closing the opening relative to the box body;

The first side of the dustproof plate is connected with the edge, close to the box cover, of the opening, and when the box cover rotates to the closed position, the dustproof plate is positioned on the inner side, facing the inner cavity, of the box cover;

The extension length of the dustproof plate is 75-97% of the length of the paper box along the length direction of the paper box, and a first notch for a finger to extend in is formed in the second side of the dustproof plate opposite to the first side.

2. The carton of claim 1 wherein there are two of said dust guards attached to opposite side edges of said opening adjacent said lid, said two dust guards being stacked when said lid is in said closed position.

3. The carton according to claim 1, wherein the carton body comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially arranged along the circumferential direction of the carton body, and further comprises a fifth side plate which is connected to the upper side edge of the third side plate and is located inside the third side plate toward the inner cavity.

4. A carton according to claim 3 wherein the carton further comprises a backing plate connected to the underside edge of the fifth side panel and extending in the direction of the first side panel.

5. The carton according to claim 4 wherein the pad extends 80 to 97% of the width of the carton in the width direction of the carton and the pad has a second notch on a side facing the first side panel for insertion of a finger.

6. The carton according to claim 1, wherein the carton body comprises a first side plate, a second side plate, a third side plate, and a fourth side plate disposed in this order along a circumferential direction of the carton body;

the box cover comprises a top plate and a plugboard, one side of the top plate is connected to the upper side edge of the first side plate, and the opposite side is connected to the plugboard;

The plug board is provided with a first locking structure, the first side board is provided with a second locking structure, when the box cover is positioned at the closed position, the plug board is inserted into the inner cavity, and the first locking structure and the second locking structure are mutually locked.

7. The carton of claim 6 wherein the top panel has a first frangible line disposed therein and extending to opposite side edges of the top panel in a direction parallel to the junction of the top panel and the second side panel, respectively.

8. The carton of claim 6 wherein the first locking structure comprises a locking slot and the second locking structure comprises a locking tab, wherein:

the width of the locking groove is gradually increased along the direction that the lock tongue enters the locking groove;

And/or the width of the lock tongue gradually decreases along the direction that the lock tongue enters the locking groove.

9. The carton of claim 6 wherein the carton further comprises a fifth side panel connected to an upper edge of the third side panel and located inward of the third side panel toward the interior cavity, the upper edge of the fifth side panel has an avoidance gap, and a projection of the second locking structure on the fifth side panel is located in the avoidance gap.

10. The carton according to claim 1, wherein the carton body comprises a first side plate, a second side plate, a third side plate, and a fourth side plate disposed in this order along a circumferential direction of the carton body;

The box body further comprises a first bottom plate, a second bottom plate and two connecting plates, wherein the first bottom plate is connected with the lower side edge of the second side plate, the second bottom plate is connected with the lower side edge of the fourth side plate, the connecting plates are provided with bending lines, the connecting plates are divided into a first wing plate and a second wing plate by the bending lines, the first wing plate of one connecting plate is connected with the lower side edge of the first side plate, the second wing plate is adhered to the first bottom plate, the first wing plate of the other connecting plate is connected with the lower side edge of the third side plate, and the second wing plate is adhered to the second bottom plate.