A packaging box

Abstract

The present application belongs to the field of packaging technology, and provides a packaging box, including a box body and a box cover, wherein the interior of the box body is provided with a platform for placing products, and the four sides of the box body have surrounding edges, and the surrounding edges include a front wall, a rear wall, and side walls located on both sides of the platform; the box cover is hinged on the rear wall of the box body, and a first connecting plate is connected between the box cover and the platform, and when the box cover is opened on the box body, the platform can be driven to lift up through the first connecting plate; the front end of the platform is separated from the front wall of the box body to form an isolation space; a second connecting plate is provided on the inner bottom wall of the box body, and the second connecting plate is connected to the platform, and the second connecting plate is used to constrain the activity track of the platform so that the front end of the platform moves in the isolation space. The present application aims to solve the technical problems that the automatic lifting packaging box structure of the prior art is easy to cause damage to the front wall of the box body and has low durability.

Description

Technical Field

[0001] The present application belongs to the field of packaging technology, and in particular relates to a packaging box that can be automatically lifted when a cover is opened. Background Art

[0002] The packaging boxes on the market can be used to package products and also as a base for displaying products. They are especially used on relatively expensive products with good appearance, such as alcohol, retail, electronic products, and jewelry. The packaging boxes of such products are often carefully designed to make the products look more upscale and beautiful. Therefore, they are usually kept in the packaging box during display.

[0003] Traditional packaging boxes generally include a box body and a lid. The lid is hinged to one side of the box body so that the lid can be opened and closed on the box body. However, when displaying the product, after the lid is opened, the product will lie flat inside the box body. Since the surrounding edges of the box body are higher than the product, it is easy to block the product, making it difficult for consumers to observe the full view of the product. Therefore, the product can only be taken out for viewing, especially for expensive or non-touchable products, this type of packaging box will not be applicable. In order to display the product together with the packaging box, the most common solution is to set up an inclined booth so that the packaging box containing the product can be placed on the inclined booth for display, which increases the additional booth setting cost.

[0004] In response, packaging box manufacturers have introduced packaging box structures that can be automatically lifted after the lid is opened (hereinafter referred to as lift-up boxes). After the lid is opened, the internal display platform of the lift-up box can be tilted toward the front, so that the products placed on the display platform can be tilted for display, which is convenient for consumers to see the full view of the products. However, in the packaging box structure that can automatically lift the internal platform after opening, the platform is driven by the lid to move inside the box body during the movement. Since the packaging box is generally made of paper material, the front wall of the box body is easily rubbed by the movement of the platform, which makes it easy to tear the connection between the two ends of the front wall and the side wall, and finally causes the front wall to detach from the box body and be damaged.

[0005] It can be seen that the automatic lifting box structure of the prior art has the above-mentioned defects, which causes the front wall of the box body to be easily damaged and has low durability, which is a technical problem that packaging box manufacturers urgently need to solve. Summary of the invention

[0006] The purpose of the embodiments of the present application is to provide a packaging box to solve the technical problems of the prior art automatic lifting packaging box structure that easily causes damage to the front wall of the box body and has low durability.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a packaging box, comprising:

[0008] A box body, wherein a platform for placing products is provided inside, and the four sides of the box body have surrounding edges, and the surrounding edges include a front wall, a rear wall, and side walls located on both sides of the platform;

[0009] A box cover is hinged on the rear wall of the box body, a first connecting plate is connected between the box cover and the platform, and when the box cover is opened on the box body, the platform can be lifted up by the first connecting plate;

[0010] The front end of the platform is separated from the front wall of the box body to form an isolation space; a second connecting plate is provided on the inner bottom wall of the box body, and the second connecting plate is connected to the platform. The second connecting plate is used to constrain the movement trajectory of the platform so that the front end of the platform moves in the isolation space.

[0011] The packaging box provided by the present application has the beneficial effect that: compared with the prior art, the packaging box of the present application is provided with a first connecting plate connected to the display platform on the box cover, so that when the box cover is opened on the box body, the platform can be synchronously driven to lift up, so that the platform can be arranged on the box body at an angle, which is convenient for consumers to easily observe the full view of the products placed on the platform. In addition, in order to prevent the box body from being easily damaged, the platform is arranged inside the box body, and the front end of the platform is separated from the front wall of the box body to form an isolation space, and a second connecting plate is arranged inside the box body, and the second connecting plate is connected to the bottom of the platform. The second connecting plate is used to constrain the movement trajectory of the platform during the activity, so that the front end of the platform remains within the range of the above-mentioned isolation space, effectively avoiding the front end of the platform from contacting the front wall of the box body, and preventing the platform from pushing or bumping against the front wall of the box body during the movement, causing the two ends of the front wall of the box body and the side walls on both sides to be easily broken or damaged, effectively protecting the integrity of the box body and extending the service life of the packaging box.

[0012] The structure of the box cover is improved, and the box cover is also provided with a limiting beam for stopping the front end of the platform. When the box cover is closed on the box body, the limiting beam separates the front end of the platform from the front wall of the box body and forms the isolation space. In this way, the limiting beam is arranged in the box cover, so that when the cover is closed, the limiting beam can separate the front end of the platform from the front wall of the box body to automatically form an isolation space.

[0013] In one embodiment, the thickness of the platform is greater than the height of the peripheral edge of the box body. When the box cover is closed on the box body, the portion of the platform that is higher than the peripheral edge of the box body will extend into the box cover and be limited by the limiting beam, so that the front end of the platform is separated from the front wall of the box body. In this way, the limiting beam can be hidden inside the box cover, effectively ensuring the appearance of the box cover.

[0014] The structure of the second connecting plate is improved. The second connecting plate is a direction-changing plate that can be bent up and down. One end of the second connecting plate is connected to the inner bottom wall of the box body, and the other end of the second connecting plate is connected to the bottom surface of the platform. During the movement of the platform, the second connecting plate can change direction between the platform and the box body, effectively limiting the movement trajectory of the platform during the activity.

[0015] In one embodiment, the second connecting plate includes a first connecting piece, a plate body, and a second connecting piece connected in sequence, wherein the connection between the first connecting piece and the plate body and the connection between the second connecting piece and the plate body are both movable parts that can be bent up and down. On the one hand, the two ends of the plate body can be respectively used as axes to change direction during the activity of the platform. On the other hand, the first connecting piece and the second connecting piece are respectively used as the parts where the two ends of the entire second connecting plate are fixedly connected to the carrier, effectively ensuring the connection stability of the second connecting plate.

[0016] In one embodiment, the first connecting piece is disposed close to the front wall of the box body, and the movable portion of the first connecting piece and the plate body is located outside the isolation space, so that the front end of the platform can keep moving in the isolation space.

[0017] In one embodiment, the second connecting plate extends from the front wall of the box body to the rear wall of the box body and is centrally arranged in the box body. This is beneficial to saving materials, reducing external interference during the connection and installation of the second connecting plate, facilitating operations such as pasting or ultrasonic welding of the two ends of the second connecting plate, and effectively reducing the difficulty of processing.

[0018] An improvement is made to the internal structure of the box body, wherein the box body is further provided with inner side plates located on both sides of the platform, the inner side plates abutting against the side walls of the box body; a limiting notch is provided on one end of the inner side plate close to the front wall of the box body; and both side ends of the second connecting plate extend into the limiting notch respectively. The limiting notch is used to limit the range of movement of the second connecting plate, thereby effectively constraining the movement trajectory of the display platform connected to the second connecting plate.

[0019] Another improvement is made to the internal structure of the box body, wherein the box body is further provided with inner plates located on both sides of the platform, and the inner plates are against the side walls of the box body; a limiting notch is provided on one end of the inner plate close to the front wall of the box body; the two side ends of the second connecting plate respectively have protrusions for extending into the limiting notch, which can also limit the movable range of the second connecting plate, thereby effectively constraining the movement trajectory of the platform in the box body.

[0020] The structure of the first connecting plate is improved, the box cover has a connecting wall for hinged connection with the rear wall of the box body, the first connecting plate is arranged on the connecting wall of the box cover, and extends out of the connecting wall to connect with the lower end of the back wall of the platform. When the packaging box is closed, the first connecting plate can be folded and stored on the back wall of the platform, saving space and improving the storage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the packaging box in the open state provided in the embodiment of the present application Figure 1 ;

[0023] Figure 2 Schematic diagram of the three-dimensional structure of the packaging box in the open state provided in the embodiment of the present application Figure 2 ;

[0024] Figure 3 Schematic diagram of the three-dimensional structure of the packaging box in the open state provided in the embodiment of the present application Figure 3 ;

[0025] Figure 4 A schematic diagram of the exploded structure of a packaging box provided in an embodiment of the present application;

[0026] Figure 5 A partial enlarged view of the internal structure of the packaging box in the open state provided by the embodiment of the present application;

[0027] Figure 6 A partial enlarged view of the internal structure of the packaging box provided in the embodiment of the present application in a closed state;

[0028] Figure 7 A partial enlarged view of the packaging box in the open state provided by the embodiment of the present application;

[0029] Figure 8 A partial enlarged view of the packaging box in the closed state provided by the embodiment of the present application;

[0030] Fig. 9 Schematic diagram of the three-dimensional structure of the packaging box in the open state provided in the embodiment of the present application Figure 4 ;

[0031] Fig.10 Schematic diagram of the three-dimensional structure of the packaging box in the open state provided in the embodiment of the present application Figure 5 ;

[0032] Fig.11 Schematic diagram of the three-dimensional structure of the packaging box in the open state provided in the embodiment of the present application Figure 6 ;

[0033] Fig.12 A schematic diagram of another exploded structure of a packaging box provided in an embodiment of the present application;

[0034] Fig.13 A partially enlarged view of the internal structure of another packaging box in an open state provided in an embodiment of the present application.

[0035] Among them, the reference numerals in the figure are:

[0036] 1-box body; 11-front wall; 12-rear wall; 13-side wall;

[0037] 2-box cover; 21-limiting beam; 22-connecting wall;

[0038] 3- Platform;

[0039] 4-First consecutive board;

[0040] 5-second connecting plate; 51-plate body; 52-first connecting piece; 53-second connecting piece; 54-movable part;

[0041] 6-inner side plate; 61-limiting notch. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0044] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] The traditional lifting box structure can tilt the internal platform after the box cover is opened, so that the products placed on the platform can be tilted for display, which is convenient for consumers to see the full view of the products. However, in the packaging box structure that can automatically lift the internal platform after opening, the platform is driven by the box cover and moves inside the box body during the movement. Since the packaging box is generally made of paper material, the front wall of the box body is easily rubbed by the movement of the platform, which makes the connection between the two ends of the front wall and the side wall easy to tear, and finally makes the front wall detach from the box body and damaged.

[0047] In order to solve the problem that the front wall of the box body is easily damaged, in the related art, there is a structure in which the front wall is directly set to be movable, that is, the two ends of the front wall of the box body are separated from the side walls of the box body, and the lower end of the front wall is hinged to the bottom plate of the box body, so that the front wall can be pushed open synchronously during the lifting movement of the platform. There is another structure in which a push plate is set inside the box body, which moves synchronously during the lifting movement of the platform, and the front wall is pushed open by the push plate.

[0048] The lifting box structure of the above-mentioned related art requires that the front edge of the box cover can cover the front wall of the box body when the box cover is closed on the box body, so as to prevent the front wall of the box body from opening automatically when the cover is closed, thereby affecting the aesthetics and sealing. In addition, in actual operation, the front wall of the box body needs to be restored to its original position before the cover is closed, that is, the opened front wall needs to be erected to its original position before the cover can be closed, which makes the entire cover closing operation cumbersome and the user experience poor.

[0049] Here, an embodiment of the present application provides a new type of packaging box that can be automatically lifted when the lid is opened. It does not adopt a design that damages the front wall of the box body, but only uses a limiting structure to constrain the movement trajectory of the display platform inside the box body, thereby preventing the platform from easily damaging the front wall of the box body during the process of opening the lid of the box body. It effectively solves the technical problems of the traditional automatic lifting packaging box structure, which is easy to cause damage to the front wall of the box body and has low durability. It is now described in detail.

[0050] See also Figure 1 The packaging box includes a box body 1 and a box cover 2.

[0051] The box body 1 is provided with a platform 3 for displaying products, and the products can be placed on the platform 3. In this embodiment, the platform 3 preferably has a placement groove, and the product can be embedded in the placement groove, so that the product can be accommodated on the platform 3. Among them, the placement groove structure on the platform 3 can be a groove with a similar area to the overall area of ​​the platform 3, and can also be specially set according to the shape of the product, as long as the product can be embedded in the groove body to be fixed, and no specific limitation is made here.

[0052] See also Figure 2 The four sides of the box body 1 are respectively provided with surrounding edges, and the surrounding edges of the four sides are arranged around the platform 3. The surrounding edges of the four sides respectively include a front wall 11, a rear wall 12, and side walls 13 located on both sides of the platform 3. The "front wall 11" here can be understood as the side close to the consumer when the front of the box body 1 faces the consumer. The "rear wall 12" here can be understood as the other side opposite to the front wall 11.

[0053] The box cover 2 is hinged on the rear wall 12 of the box body 1, which can be understood here as the box cover 2 being hinged to the rear wall 12 of the box body 1. Since the packaging box is generally made of paper, the "hinged structure between the box cover 2 and the rear wall 12 of the box body 1" here can be a simple paper folding structure. If the packaging box is made of metal material, such as an iron box, a rotating shaft can be added between the box cover 2 and the rear wall 12 of the box body 1 to form a hinged structure. In this way, the hinged structure between the box cover 2 and the rear wall 12 of the box body 1 can be set according to the material used or the design requirements, and is not specifically limited here.

[0054] Please also read Figure 3 and Figure 4 A first connecting plate 4 is connected between the box cover 2 and the platform 3, so that the box cover 2 can drive the platform 3 to move when it is opened, so that when the box cover 2 is opened on the box body 1, the first connecting plate 4 can drive the platform 3 to be lifted, so that the platform 3 is tilted toward the front wall 11 of the box body 1. The products placed on the platform 3 are at an ideal viewing angle, so that consumers can easily observe the overall appearance of the products on the platform 3.

[0055] Please also read Figure 4 , Figure 5 and Figure 6 The front end of the platform 3 is separated from the front wall 11 of the box body 1 to form an isolation space M, so as to reserve space for the platform 3 to move inside the box body 1.

[0056] A second connecting plate 5 is provided on the inner bottom wall of the box body 1, and the second connecting plate 5 is connected to the bottom of the platform 3. It can be understood here that one end of the second connecting plate 5 is connected to the inner bottom wall of the box body 1, and the other end of the second connecting plate 5 extends in the direction of the rear wall 12 and is connected to the bottom surface of the platform 3. In the process of the platform 3 being driven by the box cover 2 through the first connecting plate 4 to move, the second connecting plate 5 is used to constrain the moving track of the platform 3, so that the front end of the platform 3 moves in the isolation space M, thereby avoiding the front end of the platform 3 from contacting the front wall 11 of the box body 1, and preventing the platform 3 from pushing up the front wall 11 of the box body 1 during the movement, which makes the front wall 11 of the box body 1 easy to be damaged.

[0057] Compared with the prior art, the packaging box provided by the embodiment of the present application has a first connecting plate 4 connected to the display platform 3 on the box cover 2, so that when the box cover 2 is opened on the box body 1, the platform 3 can be synchronously driven to lift up, so that the platform 3 can be arranged on the box body 1 at an angle, so that consumers can easily observe the full view of the product placed on the platform 3. On the other hand, in order to prevent the box body 1 from being easily damaged, the platform 3 is arranged inside the box body 1, and the front end of the platform 3 is separated from the front wall 11 of the box body 1 to form an isolation space M, and a second connecting plate 5 is arranged inside the box body 1, and the second connecting plate 5 is connected to the bottom of the platform 3. The second connecting plate 5 is used to constrain the movement trajectory of the platform 3 during the activity, so that the front end of the platform 3 is kept in the range of the above-mentioned isolation space M, effectively avoiding the front end of the platform 3 and the front wall 11 of the box body 1 from contacting each other, and preventing the platform 3 from pushing or hitting the front wall 11 of the box body 1 during the movement, causing the two ends of the front wall 11 of the box body 1 and the side walls 13 on both sides to be easily broken or damaged, effectively protecting the integrity of the box body 1 and extending the service life of the packaging box.

[0058] Compared with the above-mentioned related technologies, the packaging box provided in the embodiment of the present application does not adopt a structure that directly destroys the front wall 11 of the box body 1. The front wall 11 of the box body 1 remains intact to prevent the front wall 11 of the box body 1 from being easily spread out naturally, thereby affecting the sealing of the packaging box. The design of the present application does not restrict the shape of the box cover 2, and the front end of the box cover 2 does not need to completely cover the front wall 11 of the box body 1 when in the closed state.

[0059] In addition, compared with the above-mentioned related technologies, there is no need to restore the front wall 11 of the box body 1 to its original position before operating the closing operation, which effectively simplifies the closing operation. The user can even simply operate the box lid 2 to directly close it on the box body 1, so that the display platform 3 can be automatically reset during the closing process and ensure the overall integrity of the packaging box after the box lid 2 is closed, effectively improving the consumer's user experience.

[0060] How to realize the automatic isolation of the display platform 3 from the front wall 11 and automatically form the isolation space M inside the box body 1. In the packaging box provided in the embodiment of the present application, the internal structure of the box body 1 is specially improved. In one embodiment of the present application, please refer to Figure 2 , Figure 4 and Figure 6 The box cover 2 is also provided with a limiting beam 21 for stopping the front end of the platform 3. The limiting beam 21 can be preferably placed horizontally inside the box cover 2 and arranged near the front end of the box cover 2. The two ends of the limiting beam 21 are respectively connected to the two side plates of the box cover 2 so that it can be fixed in the box cover 2.

[0061] When the box cover 2 is closed on the box body 1, the limiting beam 21 is located between the front end of the platform 3 and the front wall 11 of the box body 1, so that the front end of the platform 3 is separated from the front wall 11 of the box body 1 and the isolation space M is formed.

[0062] Therefore, a limiting beam 21 is provided in the box cover 2, so that when the cover is closed, the front end of the platform 3 can be separated from the front wall 11 of the box body 1 to automatically form an isolation space M. When the cover is opened, the front end of the platform 3 can move in the isolation space M, so as to avoid the front end of the platform 3 hitting the front wall 11 of the box body 1 and causing damage.

[0063] It can be seen that this clever design allows the front end of the platform 3 to be automatically separated from the front wall 11 of the box body 1 by the limiting beam 21 to form an isolation space M when the cover is closed, so that the front end of the platform 3 can move in the isolation space M when the cover is opened to avoid hitting the front wall 11 of the box body 1. When the cover is closed again, the limiting beam 21 is again between the front end of the platform 3 and the front wall 11 of the box body 1, so that the two are automatically separated to form the isolation space M.

[0064] Preferably, if Figure 6 As shown, the thickness H1 of the platform 3 is greater than the height H2 of the surrounding edge of the box body 1, so that when the box cover 2 is closed on the box body 1, the portion of the platform 3 that is higher than the surrounding edge of the box body 1 will extend into the box cover 2 and be limited at the front end by the limiting beam 21, so that the front end of the platform 3 is automatically separated from the front wall 11 of the box body 1 to form the above-mentioned isolation space M.

[0065] In this way, the limiting beam 21 does not need to extend downward from the box cover 2, and can be hidden inside the box cover 2. Since the thickness of the platform 3 is greater than the height of the surrounding edge of the box body 1, the portion of the platform 3 that exceeds the height of the surrounding edge of the box body 1 in the thickness direction will naturally extend into the box cover 2 when the box cover 2 is closed on the box body 1. At this time, the limiting beam 21 in the box cover 2 just plays the role of separating the front end of the platform 3 from the front wall 11 of the box body 1, effectively ensuring the aesthetic appearance of the box cover 2.

[0066] For the structure of the first connecting plate 4, in one embodiment of the present application, please refer to Figure 7 and Figure 8 The box cover 2 has a connecting wall 22 for being hinged to the rear wall 12 of the box body 1 , and the first connecting plate 4 is arranged on the connecting wall 22 of the box cover 2 and extends out of the connecting wall 22 to be connected to the lower end of the back wall of the platform 3 .

[0067] In this embodiment, the first connecting plate 4 can be fixed to the connecting wall 22 of the box cover 2 by gluing or ultrasonic welding, and then extend out of the box cover 2. The extended end of the first connecting plate 4 is connected to the lower end of the back wall of the platform 3.

[0068] Thus, when the box cover 2 is closed on the box body 1, the platform 3 is accommodated in the box body 1, and the first connecting plate 4 swings into the box body 1 as the box cover 2 is closed. At this time, the first connecting plate 4 can be folded and stored on the back wall of the platform 3, saving space.

[0069] For the structure of the second connecting plate 5, in one embodiment of the present application, please refer to Fig. 9 , Fig.10 and Fig.11 The second connecting plate 5 is a turning plate that can be bent up and down. One end of the second connecting plate 5 is connected to the inner bottom wall of the box body 1, and the other end of the second connecting plate 5 is connected to the bottom surface of the platform 3.

[0070] In this way, during the movement of the platform 3, the second connecting plate 5 can change direction between the platform 3 and the box body 1, thereby effectively limiting the movement trajectory of the platform 3 during the activity.

[0071] In this embodiment, the second connecting plate 5 includes a plate body 51 and a first connecting piece 52 and a second connecting piece 53 located at opposite ends of the plate body 51. The first connecting piece 52, the plate body 51 and the second connecting piece 53 are connected in sequence. The connection between the first connecting piece 52 and the plate body 51 and the connection between the second connecting piece 53 and the plate body 51 are both movable parts 54 that can be bent up and down.

[0072] In this way, the first connecting piece 52 and the second connecting piece 53 are respectively used as the parts where both ends of the entire second connecting plate 5 are fixedly connected to the carrier, thereby effectively ensuring the connection stability of the second connecting plate 5 .

[0073] Specifically, Fig. 9 and Fig.10 As shown, the first connecting piece 52 is fixed on the inner bottom wall of the box body 1 and is arranged close to the front wall 11 of the box body 1. The second connecting piece 53 is fixed on the bottom surface of the box cover 2. The two ends of the plate body 51 can change direction with the movable part 54 as the axis during the movement of the platform 3.

[0074] Please combine Figure 6 , Fig. 9 and Fig.10As shown, the first connecting piece 52 and the movable portion 54 of the plate body 51 are located outside the above-mentioned isolation space M, so that the front end of the platform 3 can remain in the isolation space M and move.

[0075] For the specific shape of the second connecting plate 5, please refer to the embodiment of the present application. Fig. 9 , Fig.10 and Fig.11 The second connecting plate 5 is a plate centrally arranged inside the box body 1. The plate extends from the front wall 11 of the box body 1 to the rear wall 12 of the box body 1, which is beneficial to saving materials and reducing external interference during the connection and installation operation of the second connecting plate 5. It is convenient to perform operations such as gluing or ultrasonic welding on the two ends of the second connecting plate 5, effectively reducing the processing difficulty.

[0076] In other implementations (not shown), the second connecting plate 5 may also be two or more plates evenly distributed inside the box body 1. Alternatively, the second connecting plate 5 may even be a complete large plate laid on the inner bottom wall of the box body 1, extending from the front wall 11 of the box body 1 to the rear wall 12 of the box body 1. Any method is acceptable as long as it can constrain the movement trajectory of the platform 3 in the box body 1.

[0077] In order to limit the range of motion of the second connecting plate 5 and thus constrain the motion trajectory of the platform 3 in the box body 1, the internal structure of the box body 1 is improved, including but not limited to the following forms:

[0078] In one embodiment of the present application, please refer to Fig.12 and Fig.13 Inner plates 6 are also provided in the box body 1 and are located on both sides of the platform 3 . The inner plates 6 are against the side walls 13 of the box body 1 .

[0079] Preferably, the inner plate 6 can be glued or ultrasonically welded to the inner wall 13 of the box body 1 so that the inner plate 6 and the side wall 13 of the box body 1 are overlapped together, which is beneficial to reduce the thickness of the two after overlapping, thereby reducing the occupied space of the inner cavity of the box body 1 and avoiding interference with the activities of the platform 3.

[0080] A limiting notch 61 is provided on one end of the inner plate 6 close to the front wall 11 of the box body 1 . The position of the limiting notch 61 matches the above-mentioned isolation space M. Both side ends of the second connecting plate 5 extend into the limiting notch 61 respectively.

[0081] Thus, the width of the second connecting plate 5 is smaller than the limiting notch 61. Here, the width of the second connecting plate 5 can be understood as the extension length of the second connecting plate 5 from the front wall 11 of the box body 1 to the rear wall 12 of the box body 1, which is larger than the limiting notch 61 of the inner side plate 6. The two ends of the second connecting plate 5 can extend into the limiting notches 61 of the inner side plates 6 on both sides respectively. The limiting notch 61 is used to limit the range of movement of the second connecting plate 5, thereby constraining the movement trajectory of the display platform 3 connected to the second connecting plate 5.

[0082] In another embodiment of the present application (not shown), the box body 1 is further provided with inner side plates 6 located on both sides of the platform 3, the inner side plates 6 abut against the side walls 13 of the box body 1, and a limiting notch 61 is provided on one end of the inner side plates 6 close to the front wall 11 of the box body 1, and the position of the limiting notch 61 matches the above-mentioned isolation space M. The fixing method of the inner side plates 6 may be similar to that of the above-mentioned embodiment.

[0083] The difference is that the width of the second connecting plate 5 is greater than the limiting notches 61 of the inner plates 6 on both sides, and both side ends of the second connecting plate 5 have protrusions (not shown) for extending into the limiting notches 61 .

[0084] In this way, protrusions extend out of both sides of the plate body of the second connecting plate 5, and the protrusions are used to extend into the limiting notches 61 of the inner plates 6 on both sides of the box body 1, which can also limit the range of movement of the second connecting plate 5, thereby constraining the movement trajectory of the platform 3 in the box body 1.

[0085] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A packaging box, characterized in that: include: A box body, wherein a platform for placing products is provided inside, and the four sides of the box body have surrounding edges, and the surrounding edges include a front wall, a rear wall, and side walls located on both sides of the platform; A box cover is hinged on the rear wall of the box body, a first connecting plate is connected between the box cover and the platform, and when the box cover is opened on the box body, the platform can be lifted up by the first connecting plate; The front end of the platform is separated from the front wall of the box body to form an isolation space; a second connecting plate is provided on the inner bottom wall of the box body, and the second connecting plate is connected to the platform. The second connecting plate is used to constrain the movement trajectory of the platform so that the front end of the platform moves in the isolation space.

2. The packaging box according to claim 1, characterized in that: The box cover is also provided with a limiting beam for resisting the front end of the platform. When the box cover is closed on the box body, the limiting beam separates the front end of the platform from the front wall of the box body and forms the isolation space.

3. The packaging box according to claim 2, characterized in that: The thickness of the platform is greater than the height of the peripheral edge of the box body. When the box cover is closed on the box body, the portion of the platform that is higher than the peripheral edge of the box body will extend into the box cover and be limited by the limiting beam.

4. The packaging box according to claim 1, characterized in that: The second connecting plate is a direction-changing plate that can be bent up and down, one end of the second connecting plate is connected to the inner bottom wall of the box body, and the other end of the second connecting plate is connected to the bottom surface of the platform.

5. The packaging box according to claim 4, characterized in that: The second connecting plate includes a first connecting piece, a plate body and a second connecting piece which are connected in sequence, wherein the connection between the first connecting piece and the plate body and the connection between the second connecting piece and the plate body are both movable parts that can be bent up and down.

6. The packaging box according to claim 5, characterized in that: The first connecting piece is arranged close to the front wall of the box body, and the movable part of the first connecting piece and the plate body is located outside the isolation space.

7. The packaging box according to claim 1, characterized in that: The second connecting plate extends from the front wall of the box body to the rear wall of the box body and is centrally arranged in the box body.

8. The packaging box according to claim 1, characterized in that: The box body is also provided with inner plates located on both sides of the platform, and the inner plates are against the side walls of the box body; a limiting notch is provided on one end of the inner plate close to the front wall of the box body; and both side ends of the second connecting plate extend into the limiting notch respectively.

9. The packaging box according to claim 1, characterized in that: The box body is also provided with inner plates located on both sides of the platform, and the inner plates are against the side walls of the box body; a limiting notch is provided on one end of the inner plate close to the front wall of the box body; and both side ends of the second connecting plate respectively have protrusions for extending into the limiting notch.

10. The packaging box according to any one of claims 1 to 9, characterized in that: The box cover is provided with a connecting wall for being hinged to the rear wall of the box body, and the first connecting plate is arranged on the connecting wall of the box cover and extends out of the connecting wall to be connected to the lower end of the back wall of the platform.

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