Packaging box

Abstract

The present application relates to the technical field of packaging boxes, and discloses a packaging box. The packaging box comprises: a box body, a cover, and an insertion member. The end portion of the cover of the packaging box facing away from a first protective plate is provided with an insertion hole, two groups of limiting teeth arranged opposite to each other are fixed on side surfaces of the insertion member movably connected to a second protective plate, and the maximum distance between the tooth top ends of the two groups of limiting teeth is greater than or equal to the width of the insertion hole. In this way, in the process of covering the box body with the cover, the insertion member can be appropriately deformed to be inserted into the insertion hole through the opening area of the insertion hole and can be fastened to the side surface of the cover facing a cavity, so that the insertion member is not easily pulled out under the action of an external force. If the insertion member is forcibly pulled out from the insertion hole, the limiting teeth on the insertion member will be damaged or the opening area of the insertion hole will be damaged, which can be recognized by a user, that is, whether the packaging box is opened can be effectively recognized, achieving a certain tamper-evident function, and good safety performance.

Description

Packaging box TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging boxes, and in particular to a packaging box. BACKGROUND

[0002] With the rapid growth of the national economy, the packaging industry has developed rapidly. Because the packaging box (for example, a packaging paper box) has the advantages of environmental protection, recyclability, foldability, excellent printing performance, and low cost, it has great market potential in many industries such as food and medicine.

[0003] However, in order to protect the privacy of consumers, there is an urgent need for a packaging box with an anti-disassembly function. CONTENT OF THE INVENTION

[0004] The present application provides a packaging box. The problem of the need for a packaging box with an anti-disassembly function in the prior art can be solved, and the technical solution is as follows:

[0005] In one aspect, a packaging box is provided, which comprises:

[0006] a box body, a cover body, and a plug-in piece;

[0007] The box body has a first protective plate and a second protective plate arranged opposite each other, and a cavity distributed between the first protective plate and the second protective plate;

[0008] One end of the cover body is movably connected to the first protective plate, and the other end of the cover body has a plug-in hole matched with the plug-in piece, and the opening area of the plug-in hole is parallel to the second protective plate;

[0009] The first end of the plug-in piece is movably connected to the second protective plate, and the side surface of the plug-in piece has two sets of limiting teeth arranged opposite each other, the arrangement direction of the two sets of limiting teeth is parallel to the extension direction of the plug-in hole, and the maximum distance between the tooth tips of the two sets of limiting teeth is greater than or equal to the width of the plug-in hole.

[0010] When the packaging box is in a closed state, part of the plug-in piece is inserted into the plug-in hole, and the two sets of limiting teeth are used to be clamped with the side surface of the cover body facing the cavity.

[0011] Optionally, the plug-in hole comprises a middle hole and two insertion slits distributed on both sides of the middle hole, and the two insertion slits are in communication with the middle hole; wherein the maximum distance between the tooth tips of the two sets of limiting teeth is greater than or equal to the distance between the end portions of the two insertion slits away from the middle hole.

[0012] Optionally, each group of the limiting teeth comprises at least one limiting tooth, which is arranged obliquely towards the second protective plate.

[0013] Optionally, each group of the limiting teeth comprises a first limiting tooth and a second limiting tooth, the first limiting tooth being closer to the second protective plate than the second limiting tooth.

[0014] The top end of the first limiting tooth protrudes from the top end of the second limiting tooth.

[0015] Optionally, the plug-in part comprises a support part and the two groups of limiting teeth fixed respectively on both sides of the support part, wherein the width of the support part is less than or equal to the width of the middle hole.

[0016] Optionally, the top of the second protective plate has a positioning groove, and the plug-in part further comprises a reinforcing part fixedly connected with the side surface of the support part.

[0017] When the packaging box is in the closed state, the reinforcing part is located in the positioning groove.

[0018] Optionally, the side surface of the limiting tooth away from the support part comprises two limiting side surfaces and a connecting arc surface, the connecting arc surface being located between the two limiting side surfaces, and the two ends of the connecting arc surface being smoothly connected with the two limiting side surfaces respectively.

[0019] The included angle between the two limiting side surfaces is an acute angle.

[0020] Optionally, the cover body comprises a top plate, a first inner end plate and a transition plate, one end of the top plate being movably connected with the first protective plate, the first inner end plate being fixedly connected with the end of the top plate away from the first protective plate, the first inner end plate being located in the cavity and arranged opposite to the second protective plate, the plug-in hole being located at the end of the first inner end plate close to the top plate, one end of the transition plate being connected with the inner side wall of the plug-in hole, the transition plate being flush with the top plate, and the outer boundary shape of the transition plate being the same as the inner boundary shape of the plug-in hole.

[0021] Optionally, the top plate comprises a top plate body, an auxiliary connecting plate and a first weak connecting part, one end of the top plate body being movably connected with the first protective plate, the auxiliary connecting plate being connected with the transition plate, the first weak connecting part being located between and connected with the top plate body and the auxiliary connecting plate.

[0022] The first weak connecting part is configured to separate the auxiliary connecting plate and the top plate body under the action of an external force.

[0023] Optionally, the first weak connection part comprises a plurality of first hollow holes and a plurality of first connecting pieces, the first connecting pieces are connected with the top plate body and the auxiliary connecting plate respectively, and at least one first hollow hole is distributed between every two adjacent first connecting pieces.

[0024] Optionally, the packaging box further comprises a first end part for connecting the plug-in part and a second weak connection part of the second protective plate, the second weak connection part is configured to separate the plug-in part and the second protective plate under the action of an external force.

[0025] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects:

[0026] A packaging box can comprise a box body, a cover body and a plug-in part. A plug-in hole is arranged at an end of the cover body away from the first protective plate, and two sets of limiting teeth are fixed on the side surface of the plug-in part which is movably connected with the second protective plate, the maximum distance between the tooth tips of the two sets of limiting teeth is greater than or equal to the width of the plug-in hole. In this way, during the process of covering the box body with the cover body, the plug-in part can be appropriately deformed and inserted into the plug-in hole from the opening area of the plug-in hole and can be clamped with the side surface of the cover body facing the cavity, so that the plug-in part is not easily pulled out under the action of an external force. If the plug-in part is forcibly pulled out from the plug-in hole, the limiting teeth in the plug-in part will be damaged or the opening area of the plug-in hole will be damaged, so that the user can identify it, that is, the packaging box can effectively identify whether it is opened, has a certain anti-disassembly function, and has good safety performance. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Fig. 1 is a structural schematic view of a packaging box in an open state according to an embodiment of the present application;

[0029] Fig. 2 is an effect schematic view of the packaging box shown in Fig. 1 in an unfolded state;

[0030] Fig. 3 is a cooperation schematic view of a plug-in part and a plug-in hole according to an embodiment of the present application;

[0031] Fig. 4 is a structural schematic view of a packaging box in a closed state according to an embodiment of the present application;

[0032] Fig. 5 is an effect schematic view of another packaging box in an unfolded state according to an embodiment of the present application.

[0033] The specific embodiments of the present application have been shown and described in the above drawings, and will be described in more detail hereinafter. These drawings and detailed description are not intended to limit the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0035] The existing paper box is closed by buckling or in the form of a cover, and can be repeatedly opened and closed. Customers cannot identify whether the take-out paper box has been opened, and the take-out paper box is usually disposable and does not need to be opened and closed multiple times. The existing food paper box can be repeatedly opened and closed, and cannot identify whether it has been opened during the delivery process from the merchant to the customer. It cannot prevent the hygiene and safety of the food in the paper box.

[0036] Please refer to FIG. 1 and FIG. 2, FIG. 1 is a structure schematic diagram of a packaging box in an open and closed state according to an embodiment of the present application, and FIG. 2 is an effect schematic diagram of the packaging box shown in FIG. 1 in an unfolded state. The packaging box 000 can include a box body 100, a cover body 200 and a plug-in piece 300.

[0037] The box body 100 in the packaging box 000 can have a first protective plate 101 and a second protective plate 102 arranged oppositely, and a cavity a1 distributed between the first protective plate 101 and the second protective plate 102.

[0038] One end of the cover body 200 in the packaging box 000 can be movably connected with the first protective plate 101, and the other end of the cover body 200 can have a plug-in hole b1 matched with the plug-in piece 300, and the opening area of the plug-in hole b1 can be arranged in parallel with the second protective plate 102. It should be noted that the plug-in hole b1 can be in communication with the cavity in the box body 100.

[0039] The first end of the plug-in piece 300 in the packaging box 000 can be movably connected with the second protective plate 102, and the side surface of the plug-in piece 300 can have two sets of limiting teeth 301 arranged oppositely, the arrangement direction of the two sets of limiting teeth 301 can be parallel to the extension direction of the plug-in hole b1, and the maximum distance between the tooth tips of the two sets of limiting teeth 301 can be greater than or equal to the width of the plug-in hole b1 in the cover body 200.

[0040] When the packaging box 000 is in the closed state, part of the plug-in part 300 can be inserted into the plug-in hole b1, and the two sets of limiting teeth 301 can be used to be clamped with the side of the cover 200 facing the cavity a1. As shown in FIG. 2, the packaging box 000 can be folded and assembled from the unfolded state, and when the packaging box 000 is in the closed state, the cover 200 can be used to cover the cavity a1 in the box 100.

[0041] In the embodiment of the present application, the plug-in hole b1 is arranged at the end of the cover 200 away from the first protective plate 101 in the packaging box 000, and the side of the plug-in part 300 movably connected with the second protective plate 102 is fixed with two sets of oppositely arranged limiting teeth 301, and the maximum distance between the tooth tips of the two sets of limiting teeth 301 is greater than or equal to the width of the plug-in hole b1. In this way, during the closing process of the cover 200 and the box 100, the plug-in part 300 can be appropriately deformed and inserted into the plug-in hole b1 from the opening area of the plug-in hole b1 and can be clamped with the side of the cover 200 facing the cavity a1, so that the plug-in part 300 is not easily pulled out under the action of external force. If the plug-in part 300 is forcibly pulled out of the plug-in hole b1, the limiting teeth 301 in the plug-in part 300 will be damaged or the opening area of the plug-in hole b1 will be damaged, so that the user can identify it, that is, the packaging box 000 can effectively identify whether it is opened, has a certain anti-disassembly function, and has good safety performance.

[0042] For example, the packaging box 000 can be a packaging paper box, or can be made of other materials, and the embodiment of the present application does not make specific limitations thereto.

[0043] In summary, the packaging box provided by the embodiment of the present application can include a box, a cover and a plug-in part. The plug-in hole is arranged at the end of the cover away from the first protective plate in the packaging box, and the side of the plug-in part movably connected with the second protective plate is fixed with two sets of oppositely arranged limiting teeth, and the maximum distance between the tooth tips of the two sets of limiting teeth is greater than or equal to the width of the plug-in hole. In this way, during the closing process of the cover and the box, the plug-in part can be appropriately deformed and inserted into the plug-in hole from the opening area of the plug-in hole and can be clamped with the side of the cover facing the cavity, so that the plug-in part is not easily pulled out under the action of external force. If the plug-in part is forcibly pulled out of the plug-in hole, the limiting teeth in the plug-in part will be damaged or the opening area of the plug-in hole will be damaged, so that the user can identify it, that is, the packaging box can effectively identify whether it is opened, has a certain anti-disassembly function, and has good safety performance.

[0044] Optionally, please refer to FIG. 1 and FIG. 3, FIG. 3 is a schematic diagram of the cooperation of the plug-in part and the plug-in hole. The plug-in hole b1 in the cover 200 can include: a middle hole b11, and two insertion slits b12 distributed on both sides of the middle hole b11, and the two insertion slits b12 can be in communication with the middle hole b11. Wherein, the maximum distance between the tooth tips of the two sets of limiting teeth 301 can be greater than or equal to the distance between the end portions of the two insertion slits b12 away from the middle hole b11. In this way, in the process of inserting the plug-in part 300 into the plug-in hole b1, the plug-in part 300 is aligned with the middle hole b11, and the two sets of limiting teeth 301 in the plug-in part 300 can be inserted into the plug-in hole b1 along the insertion slits b12, and the height of the insertion slit b12 is small, so that the plug-in part 300 inserted into the plug-in hole b1 is not easy to be pulled out from the plug-in hole b1. It should be noted that the height of the insertion slit b12 can be less than or equal to the thickness of the limiting tooth 301 in the plug-in part 300, and the height of the middle hole b11 can be greater than or equal to the thickness of the plug-in part 300.

[0045] In the embodiment of the application, as shown in FIG. 3, each set of limiting teeth 301 in the plug-in part 300 can include at least one limiting tooth, and the limiting tooth 301 can be inclinedly arranged towards the second protective plate 102. In this way, after the plug-in part 300 is inserted into the plug-in hole b1, the limiting effect of the plug-in part 300 and the cover 200 can be further ensured by the inclinedly arranged limiting tooth 301, and the anti-disassembly function of the packaging box 000 is further ensured. For example, each set of limiting teeth 301 in the plug-in part 300 can include: a first limiting tooth 301a and a second limiting tooth 301b, and the first limiting tooth 301a can be closer to the second protective plate 102 than the second limiting tooth 301b. Wherein, the tooth tip of the first limiting tooth 301a can protrude from the tooth tip of the second limiting tooth 301b.

[0046] In the embodiment of the application, as shown in FIG. 3, the plug-in part 300 in the packaging box 000 can include: a support part 302, and two sets of limiting teeth 301 fixed on both sides of the support part 302 respectively. Wherein, the width of the support part 302 can be less than or equal to the width of the middle hole b11. In this case, by setting the width of the support part 302 in the plug-in part 300 to be less than or equal to the width of the middle hole b11 of the plug-in hole b1, the plug-in part 300 can be smoothly inserted into the plug-in hole b1 in the cover 200.

[0047] In the present application, as shown in FIG. 3, each limiting tooth in each set of limiting teeth 301 can include two limiting side surfaces c1 and a connecting curved surface c2 located between the two limiting side surfaces c1, and the two ends of the connecting curved surface c2 can be smoothly connected with the two limiting side surfaces c1, respectively. In this case, by arranging the two limiting side surfaces c1 and the connecting curved surface c2 connected with each other on the side surface of the limiting tooth 301, the limiting tooth 301 can be smoothly inserted into the insertion hole b1 through the insertion gap b12 of the insertion hole b1.

[0048] Optionally, referring to FIG. 1 and FIG. 4, FIG. 4 is a structural schematic view of a packaging box in a closed state according to an embodiment of the present application. The top of the second protective plate 102 can have a positioning groove d1, and the insertion piece 300 can further include a reinforcing portion 303 fixedly connected with the side surface of the supporting portion 302. In this case, by arranging the positioning groove d1 on the top of the second protective plate 102 and fixing the reinforcing portion 303 with the side surface of the supporting portion 302, the strength of the insertion piece 300 can be effectively increased by the reinforcing portion 303. In addition, during the process of inserting the insertion piece 300 into the insertion hole b1, when the reinforcing portion 303 is located in the positioning groove d1 in the second protective plate 102, the operator can know that the insertion piece 300 is inserted in place, thereby improving the user experience of the operator.

[0049] In the present application, as shown in FIG. 4, the cover 200 in the packaging box 000 can include a top plate 201, a first inner end plate 202 and a transition plate 203, one end of the top plate 201 can be movably connected with the first protective plate 101. The first inner end plate 202 can be fixedly connected with the end of the top plate 201 away from the first protective plate 101, and the first inner end plate 202 can be located in the cavity a1 in the box body 100 and arranged opposite to the second protective plate 102. The insertion hole b1 in the cover 200 can be located at the end of the first inner end plate 202 close to the top plate 201, one end of the transition plate 203 can be connected with the inner side wall of the insertion hole b1, the transition plate 203 can be arranged flush with the top plate 201, and the outer boundary shape of the transition plate 203 can be the same as the inner boundary shape of the insertion hole b1.

[0050] For example, the cover 200 can have a flattened state and a bent state. When the cover 200 is in the flattened state, the first inner end plate 202 can be flush with the top plate 201, and the transition plate 203 can be located in the insertion hole b1. When the cover 200 is in the bent state, the first inner end plate 202 intersects the top plate 201, and the first inner end plate 202 can be located in the cavity a1. It should be noted that when the cover 200 is in the bent state, the transition plate 203 can intersect the first inner end plate 202, and a gap b12 in the insertion hole b1 is formed between the transition plate 203 and the first inner end plate 202.

[0051] Optionally, as shown in FIG. 4, the top plate 201 in the cover 200 can include a top plate body 201a, an auxiliary connecting plate 201b, and a first weak connecting portion 201c. One end of the top plate body 201a can be movably connected to the first protective plate 101, one end of the auxiliary connecting plate 201b can be connected to the transition plate 203, and the first weak connecting portion 201c can be located between and connected to the top plate body 201a and the auxiliary connecting plate 201b. The first weak connecting portion 201c can be configured to separate the auxiliary connecting plate 201b and the top plate body 201a under the action of an external force. In this way, by providing the first weak connecting portion 201c between the top plate body 201a and the auxiliary connecting plate 201b, when a user normally disassembles the packaging box 000, the user can apply a pressure to the auxiliary connecting plate 201b in a direction towards the cavity a1, so that the auxiliary connecting plate 201b and the top plate body 201a are disconnected at the first weak connecting portion 201c, thereby realizing the separation of the top plate body 201a from the box body 100.

[0052] In the embodiments of the present application, please refer to FIG. 4 and FIG. 5, FIG. 5 is another effect diagram of unfolding the packaging box provided by the embodiments of the present application. The first weak connecting portion 201c can include a plurality of first hollow holes k1 and a plurality of first connecting pieces k2. The first connecting pieces k2 can be connected to the top plate body 201a and the auxiliary connecting plate 201b respectively, and at least one first hollow hole k1 can be distributed between every two adjacent first connecting pieces k2. In this case, by providing the first hollow holes k1 and the first connecting pieces k2 which are spaced apart in the first weak connecting portion 201c, in the process of applying pressure to the auxiliary connecting plate 201b by the user, the auxiliary connecting plate 201b and the top plate body 201a can be disconnected at the first weak connecting portion 201c, so as to realize the separation of the top plate body 201a and the auxiliary connecting plate 201b.

[0053] Optionally, as shown in FIG. 5, the packaging box 000 further comprises a second weak connecting portion 400 for connecting the first end of the plug-in piece 300 and the second protective plate 102, which can be configured to separate the plug-in piece 300 and the second protective plate 102 under the action of an external force. In this case, by arranging the second weak connecting portion 400 between the plug-in piece 300 and the second protective plate 102, when the user normally disassembles the packaging box 000, the plug-in piece 300 can be pressed in the direction towards the cavity a1, so that the plug-in piece 300 is disconnected with the second protective plate 102 at the second weak connecting portion 400, thereby realizing the separation of the cover 200 and the box 100.

[0054] For example, the second weak connecting portion 400 can comprise a plurality of second hollow holes and a plurality of second connecting pieces (not shown in the figure), the second connecting pieces can be connected with the second protective plate and the plug-in piece respectively, and at least one second hollow hole can be distributed between every two adjacent second connecting pieces.

[0055] In the embodiments of the present application, as shown in FIG. 5, the second protective plate 102 can comprise an outer plate 102a, a second inner end plate 102b, and a bent plate 102c between the top of the outer plate 102a and the top of the second inner end plate 102b, the second inner end plate 102b can be located between the outer plate 102a and the first protective plate 101, and the second inner end plate 102b is oppositely arranged with the outer plate 102a, and the bent plate 102c can be connected with the top of the outer plate 102a and the top of the second inner end plate 102b respectively. Wherein, the first end of the plug-in piece 300 can be movably connected with the outer plate 102a. For example, in the process of folding and forming the packaging box, the outer plate 102a is folded once, and the second inner end plate 102b is folded twice relative to the outer plate 102a. It should be noted that, as shown in FIG. 4 and FIG. 5, the positioning slot d1 in the second protective plate 102 can be distributed on the bent plate 102c.

[0056] In summary, the packaging box provided by the embodiments of the present application can comprise a box, a cover and a plug-in piece. By arranging a plug-in hole on the end of the cover away from the first protective plate, and fixing two sets of oppositely arranged limiting teeth on the side of the plug-in piece movably connected with the second protective plate, the maximum distance between the tooth tips of the two sets of limiting teeth is greater than or equal to the width of the plug-in hole. In this way, during the covering process of the cover and the box, the plug-in piece can be appropriately deformed to be inserted into the plug-in hole from the opening area of the plug-in hole and can be clamped with the side of the cover facing the cavity, so that the plug-in piece is not easy to be pulled out under the action of an external force. If the plug-in piece is forcibly pulled out from the plug-in hole, the limiting teeth in the plug-in piece will be damaged or the opening area of the plug-in hole will be damaged, so that the user can identify it, that is, the packaging box can effectively identify whether it is disassembled, has a certain anti-disassembly function, and has good safety performance.

[0057] It is to be understood that the figures illustrate the concept, the dimensions of the layers and regions can be exaggerated for the clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or intervening layers can also be present. Furthermore, it is to be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements can also be present. Also, it is to be understood that when an element or layer is referred to as being "between" two elements or layers, it can be the only element or layer between the two elements or layers or one or more intervening layers or elements can also be present. Like reference numerals refer to like elements throughout.

[0058] In this application, the terms "first" and "second" are used only for descriptive purposes and are not to be taken literally or to imply relative importance. The term "plurality" means two or more, unless expressly specified otherwise.

[0059] The above description is only optional embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A package, characterized in that The package box comprises a box body, a cover body and a plug-in part. The box body has a first protection plate and a second protection plate arranged oppositely, and a cavity distributed between the first protection plate and the second protection plate. One end of the cover body is movably connected with the first protection plate, and the other end of the cover body has a plug-in hole matched with the plug-in part, and the opening area of the plug-in hole is parallel to the second protection plate. The first end of the plug-in part is movably connected with the second protection plate, and the side surface of the plug-in part has two sets of limiting teeth arranged oppositely, the arrangement direction of the two sets of limiting teeth is parallel to the extension direction of the plug-in hole, and the maximum distance between the tooth tips of the two sets of limiting teeth is greater than or equal to the width of the plug-in hole. When the package box is in the closed state, part of the plug-in part is inserted into the plug-in hole, and the two sets of limiting teeth are used for clamping with the side surface of the cover body facing the cavity. The plug-in hole comprises a middle hole and two insertion slits distributed on both sides of the middle hole, and the two insertion slits are in communication with the middle hole.

2. The package of claim 1, wherein The maximum distance between the tooth tips of the two sets of limiting teeth is greater than or equal to the distance between the end portions of the two insertion slits away from the middle hole. Each set of limiting teeth comprises at least one limiting tooth, and the limiting tooth is arranged obliquely towards the second protection plate.

3. The package of claim 2, wherein Each set of limiting teeth comprises a first limiting tooth and a second limiting tooth, and the first limiting tooth is closer to the second protection plate than the second limiting tooth.

4. The package of claim 3, wherein The tooth tip of the first limiting tooth protrudes from the tooth tip of the second limiting tooth. The plug-in part comprises a support portion and the two sets of limiting teeth fixed on both sides of the support portion respectively, and the width of the support portion is less than or equal to the width of the middle hole.

5. The package of claim 2, wherein The top of the second protection plate has a positioning groove, and the plug-in part further comprises a reinforcing portion fixedly connected with the side surface of the support portion.

6. The package of claim 5, wherein When the package box is in the closed state, the reinforcing portion is located in the positioning groove. The side surface of the limiting tooth away from the support portion comprises two limiting side surfaces and a connecting arc surface, the connecting arc surface is located between the two limiting side surfaces, and the two ends of the connecting arc surface are smoothly connected with the two limiting side surfaces respectively.

7. The package of claim 5, wherein The included angle between the two limiting side surfaces is an acute angle. The cover body comprises a top plate, a first inner end plate and a transition plate, one end of the top plate is movably connected with the first protection plate, the first inner end plate is fixedly connected with one end of the top plate away from the first protection plate, and the first inner end plate is arranged oppositely with the second protection plate in the cavity, and the plug-in hole is located at the end of the first inner end plate close to the top plate; one end of the transition plate is connected with the inner side wall of the plug-in hole, the transition plate is flush with the top plate, and the outer boundary shape of the transition plate is the same as the inner boundary shape of the plug-in hole.

8. A pack according to any one of claims 2 to 7, wherein ​ 9. The package of claim 8, wherein, The top plate comprises a top plate body, an auxiliary connecting plate and a first weak connecting part, one end of the top plate body is movably connected with the first guard plate, the auxiliary connecting plate is connected with the transition plate, the first weak connecting part is located between the top plate body and the auxiliary connecting plate and is connected with the top plate body and the auxiliary connecting plate; The first weak connecting part is configured to separate the auxiliary connecting plate and the top plate body under the action of an external force.

10. The package of claim 9, wherein, The first weak connecting part comprises a plurality of first hollow holes and a plurality of first connecting pieces, the first connecting pieces are respectively connected with the top plate body and the auxiliary connecting plate, and at least one first hollow hole is distributed between every two adjacent first connecting pieces.

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