Packaging box

Abstract

The application discloses a packaging box, comprising a box body and a supporting plate, the box body is formed with a storage cavity for accommodating the supporting plate; a guide groove and a plurality of clamping grooves communicating with the guide groove are formed on the cavity side wall of the storage cavity, the guide groove extends along the depth direction of the storage cavity, and the plurality of clamping grooves are arranged at intervals along the extension direction of the guide groove; the supporting plate comprises a plate main body and a clamping block connected to the plate main body, the clamping block is configured to be slidably arranged in the guide groove, wherein under the action of an external force, the plate main body rotates relative to the box body, so that the clamping block is selectively clamped into one of the plurality of clamping grooves, and the plate main body is stopped at the height position of the clamping groove connected with the clamping block. The technical scheme of the application can adapt to different sizes of the packaged products, is beneficial to the size standardization of the packaging box, and can reduce the number of different size types of the packaging box.

Description

Technical Field

[0001] This application relates to the field of packaging technology, and in particular to a packaging box. Background Technology

[0002] Packaging boxes are used to wrap products to prevent damage from drops during transportation.

[0003] Some packaged products come in different lengths; for example, camera devices in electronic products may have various lengths. However, existing packaging boxes have a single depth for their storage compartments. If products of different lengths need to be packaged, boxes with appropriate dimensions must be selected to fit the size of the products. This results in an excessive variety of packaging boxes, which is not conducive to standardizing packaging box dimensions. Summary of the Invention

[0004] This application provides a packaging box that can adapt to packaged products of different sizes, which is conducive to the standardization of packaging box size and reduces the number of different sizes of packaging boxes.

[0005] This application provides a packaging box, which includes a box body and a support plate, wherein the box body forms a storage cavity for accommodating the support plate;

[0006] The cavity sidewall has a guide groove and multiple snap-fit ​​grooves that connect to the guide groove. The guide groove extends along the depth direction of the cavity, and the multiple snap-fit ​​grooves are arranged at intervals along the extension direction of the guide groove.

[0007] The support plate includes a plate body and a locking block connected to the plate body. The locking block is configured to be slidably disposed in a guide groove. Under the action of an external force, the plate body rotates relative to the box body, so that the locking block selectively engages with one of a plurality of locking grooves, and the plate body stops at the height position of the locking groove connected to the locking block.

[0008] Alternatively, a guide rail is provided on the side wall of the storage cavity, the guide rail extends along the depth direction of the storage cavity, and forms a plurality of limiting and fixing grooves spaced apart in its extension direction.

[0009] The support plate includes a plate body, which has a limiting notch for the guide rail to pass through and is slidably disposed on the guide rail. Under the action of external force, the plate body rotates relative to the box body, so that the part of the plate body other than the limiting notch is selectively fixed to one of a plurality of limiting and fixing grooves, so that the plate body stops at the height position of the limiting and fixing groove connected thereto.

[0010] In some embodiments, the cavity sidewall of the storage cavity is configured to form a guide groove and a plurality of snap-fit ​​grooves, the snap-fit ​​grooves including a first sub-groove and a second sub-groove;

[0011] In the circumferential direction of the box, the first sub-slot and the second sub-slot are respectively set on opposite sides of the guide groove;

[0012] The card block can selectively engage with either the first or second sub-slot of one of the card slots.

[0013] In some embodiments, the snap-fit ​​slot includes a first slot segment, a second slot segment, and a third slot segment connected in sequence;

[0014] The first groove segment is connected to the guide groove and is arranged at intervals with the third groove segment in the depth direction of the storage cavity. Both the first groove segment and the third groove segment extend along the circumference of the box body, and the second groove segment extends along the depth direction of the storage cavity.

[0015] The card block can pass through the first slot and the second slot in sequence and then be inserted into the third slot.

[0016] In some embodiments, the cavity sidewall of the storage cavity is configured to form a guide groove and a plurality of snap-fit ​​grooves. The guide groove and the plurality of snap-fit ​​grooves are combined to form a connection module. There are two sets of connection modules and two snap-fit ​​blocks. The two snap-fit ​​blocks are symmetrically distributed in the circumferential direction of the plate body. The two snap-fit ​​blocks correspond one-to-one with the two sets of connection modules.

[0017] Alternatively, the sidewall of the storage cavity is configured to have guide rails, with two guide rails and two limiting notches, and the two limiting notches are symmetrically distributed in the circumferential direction of the plate body, wherein the two limiting notches correspond one-to-one with the two guide rails.

[0018] In some embodiments, a buffer is also included, which is housed within the storage cavity and connected between the bottom wall of the storage cavity and the main body of the plate.

[0019] In some embodiments, the buffer is a compression spring, and a limiting groove with an opening is formed on the side of the plate body facing the compression spring, with the central axis of the limiting groove coinciding with the central axis of the storage cavity;

[0020] One end of the compression spring abuts against the center of the bottom wall of the storage cavity, and the other end passes through the opening to be set in the limiting groove, so that the center line of the compression spring coincides with the central axis of the storage cavity.

[0021] In some embodiments, the support plate further includes a limiting portion connected to the plate surface of the plate body facing the compression spring and protruding in a direction away from the plate body;

[0022] The inner wall of the limiting part and the plate surface facing the compression spring are fitted together to form a limiting groove.

[0023] In some embodiments, the depth of the limiting groove is equal to the length of the compression spring in its ultimate compression state.

[0024] In some embodiments, a handle is formed on the surface of the plate body.

[0025] In some embodiments, the box body includes a top box and a bottom box, with the top box fitted over the bottom box and cooperating with the bottom box to enclose a storage cavity;

[0026] The top box has an open mounting slot, and the bottom box passes through the open slot and is interference-fitted with the mounting slot.

[0027] In some embodiments, the floor box is a cardboard box and includes a first cardboard layer and a second cardboard layer, the second cardboard layer being connected to the inside of the first cardboard layer;

[0028] The inner wall surface of the second cardboard layer facing away from the first cardboard layer is constructed as the cavity sidewall of the storage cavity.

[0029] Based on the packaging box of this application embodiment, the main plate can rotate relative to the box body under the action of external force, so that the locking block connected to the main plate can selectively engage with one of the multiple locking slots, or the part of the main plate except for the limiting notch can selectively engage with one of the multiple limiting fixing slots. In this way, the main plate can be adapted to different sizes of packaged products to stay at different height positions, so that the packaged products can be placed in the storage cavity of the box body under the support of the main plate. Therefore, it is not necessary to produce boxes of different sizes to fit different sizes of packaged products, which is conducive to the standardization of packaging box size. Moreover, compared with the existing packaging boxes whose support plates cannot be height adjusted, the support plate of the packaging box of this application can be height adjusted, which is more operable and can provide a better user experience.

[0030] Furthermore, the support plate of the packaging box in this application, whether it is a locking block fixedly connected to the main body of the plate and thus engaging with the locking groove by rotating the main body of the plate, or a plate with a notch and thus engaging with the limiting and fixing groove by rotating the main body of the plate, does not require additional components to engage with the locking groove or the limiting and fixing groove. As a result, the structure of the packaging box in this application is more simplified and the number of components is less. While reducing assembly steps, it can also reduce the weight of the packaging box, making it more suitable for transportation scenarios. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of one embodiment of the packaging box of this application;

[0033] Figure 2 for Figure 1 The sectional view at point AA is shown.

[0034] Figure 3 for Figure 1 An exploded view of the packaging box shown.

[0035] Figure 4 for Figure 1 An exploded view of the packaging box from another perspective;

[0036] Figure 5 for Figure 4 A schematic diagram of the structure of the base box of the packaging box shown in the figure;

[0037] Figure 6 for Figure 4 A schematic diagram of another embodiment of the base box of the packaging box shown;

[0038] Figure 7 for Figure 4 A schematic diagram of the main structure of the support plate of the packaging box shown;

[0039] Figure 8 This is a schematic diagram of the structure of a guide rail for a packaging box according to an embodiment of this application;

[0040] Figure 9 This is a structural schematic diagram of one embodiment of the support plate of the packaging box of this application.

[0041] Explanation of icon numbers:

[0042] 100. Packaging box; 10. Box body; 10a. Storage cavity; 11. Top box; 13. Bottom box; 15. Guide groove; 17. Snap-fit ​​groove; 17a. First sub-groove; 17b. Second sub-groove; 17c. First groove segment; 17d. Second groove segment; 17e. Third groove segment; 18. Guide rail; 19. Limiting and fixing groove; 30. Support plate; 31. Plate body; 31a. Handle position; 31b. Limiting notch; 33. Locking block; 35. Limiting part; 35a. Limiting groove; 50. Buffer; 51. Compression spring.

[0043] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0045] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0046] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] Packaging boxes are used to wrap products to prevent damage from drops during transportation.

[0049] Some packaged products come in different lengths; for example, camera devices in electronic products may have various lengths. However, existing packaging boxes have a single depth for their storage compartments. If products of different lengths need to be packaged, boxes with appropriate dimensions must be selected to fit the size of the products. This results in an excessive variety of packaging boxes, which is not conducive to standardizing packaging box dimensions.

[0050] While some packaging boxes can move the support plate used to hold the packaged product, allowing a single-size box to fit most products of different lengths and sizes, this method involves a connecting block rotatably connected to the support plate via a pivot. A lifting groove is formed on the side wall of the storage cavity, and multiple latching protrusions spaced apart along the depth of the cavity are formed on the groove wall. Adjacent latching protrusions form a slot, allowing the connecting block to rotate and engage with different slots during the support plate's movement, thus maintaining the support plate at a certain height. However, this method requires the support plate to have connecting blocks that cooperate with the pivot, resulting in a complex structure, a large number of blocks, and the pivots being prone to damage over time, leading to a shorter lifespan for the packaging box.

[0051] To resolve the above issues, please refer to [link / reference]. Figure 1 This application proposes a packaging box 100. Please refer to the embodiments described in this application. Figures 2 to 4 The packaging box 100 may include a box body 10, a support plate 30, and a cushioning member 50. The box body 10 forms a storage cavity 10a. The support plate 30 and the cushioning member 50 are respectively housed in the storage cavity 10a. The support plate 30 is used to support the packaged product (for example, it may be an electronic product, such as a camera device or a mobile phone, or for example, food or beverages), and can move along the depth direction of the storage cavity 10a.

[0052] The box body 10 can be cylindrical, cuboid, or polygonal, etc. The main structure of the box body 10 can be a cardboard box. Cardboard boxes have advantages such as high malleability, low cost, and light weight, reducing transportation costs. It can be understood that high malleability means that the cardboard can adjust its structure to match the shape of the packaged product. Of course, the main structure of the box body 10 can also be a metal box, which has the advantage of better strength; this application does not limit this choice.

[0053] The box body 10 may include a top box 11 and a bottom box 13. Both the top box 11 and the bottom box 13 can be cylindrical, cuboid, or polygonal prism-shaped, and their shapes must match. Both the top box 11 and the bottom box 13 can be cardboard boxes, or one can be a cardboard box and the other a metal box; this application does not limit this. The top box 11 can be fitted inside the cardboard box and, together with the bottom box 13, enclose a storage cavity 10a. It is understood that the inner surface of the top box 11 facing the bottom box 13 forms the top wall of the storage cavity 10a, the inner side wall of the bottom box 13 forms the side wall of the storage cavity 10a, and the inner surface of the bottom box 13 facing the top box 11 forms the bottom wall of the storage cavity 10a. Of course, the top box 11 and the cardboard box can also be two symmetrical half-boxes, joined together to form the box body 10; this application does not limit this.

[0054] When the top box 11 is configured to fit over a cardboard box, an open mounting groove can be formed inside the top box 11, with the bottom box 13 passing through the opening and having an interference fit with the mounting groove. This facilitates the user pulling the top box 11 out from the direction away from the bottom box 13, or pulling the bottom box 13 out from the direction away from the top box 11, making operation convenient. In other connection methods, when the bottom box 13 is a metal box, the inner side wall of the top box 11 can be provided with a magnetic element, so that the top box 11 can be fitted over the cardboard box through the magnetic attraction between the magnetic element and the metal box. This application does not limit this. In this way, the user can easily take out the packaged product from or place the packaged product into the storage cavity 10a, and the packaging box 100 can be used multiple times, increasing its reusability.

[0055] Understandably, when the box body 10 is configured as a two-part structure consisting of a top box 11 and a bottom box 13, it offers advantages such as easy assembly and disassembly, and high reusability. Of course, the box body 10 of this application can also be configured as a single, integral cylindrical structure, meaning the top box 11 and the bottom box 13 are a single unit. An opening is formed at the top of the box body 10, and a latch on the box body 10 is inserted into the opening to seal it, thus simplifying the manufacturing process. The following content will further elaborate on the ability of the packaging box 100 of this application to adapt to packaged products of different sizes, still using the configuration of the box body 10 as a two-part structure of top box 11 and bottom box 13.

[0056] The support plate 30 includes a plate body 31, which can be circular, square, or irregularly shaped. The shape of the plate body 31 can be adapted to the cross-sectional shape of the storage cavity 10a. For example, when both the top box 11 and the bottom box 13 of the box body 10 are cylindrical, the cross-sectional shape of the storage cavity 10a is circular. Therefore, the shape of the plate body 31 can be circular to adapt to the cross-sectional shape of the storage cavity 10a. The plate body 31 can be cardboard, which has advantages such as lower cost and lighter weight to reduce transportation costs. Of course, the plate body 31 can also be a metal plate to have good resistance to deformation, thereby reducing the possibility of deformation of the support plate 30 due to the excessive weight of the electronic equipment when supporting electronic equipment.

[0057] The buffer 50 can be a structural component with cushioning properties, such as a compression spring 51 or a sponge, etc., which are not limited in this application. It is connected between the bottom wall of the storage cavity 10a and the main plate 31. In actual transportation, when the packaged product is expensive and easily damaged by drops, it needs to be cushioned for protection. Therefore, the buffer 50 of the packaging box 100 of this application is connected between the bottom wall of the storage cavity 10a and the main plate 31. When the packaging box 100 is dropped during transportation, the packaged product tends to fall downwards. With the buffer 50, a cushioning effect is provided for the packaged product, preventing it from falling directly and making hard contact with the bottom wall of the storage cavity, thus preventing damage.

[0058] In order to enable the storage cavity 10a to accommodate packaged products of different sizes, the structure of the support plate 30 and its cooperation with the storage cavity 10a in this application may include, but are not limited to, the following two forms:

[0059] For the first format, please refer to the relevant documents. Figures 3 to 5 The storage cavity 10a has a guide groove 15 and multiple snap-fit ​​grooves 17 formed on its cavity sidewall. This means the guide groove 15 and snap-fit ​​grooves 17 are formed by recessing the cavity sidewall of the storage cavity 10a. The guide groove 15 extends along the depth direction of the storage cavity 10a, and the multiple snap-fit ​​grooves 17 connect to the guide groove 15 and are spaced apart along the extension direction of the guide groove 15. The support plate 30 further includes a snap-fit ​​block 33 connected to the plate body 31. For example, the snap-fit ​​block 33 can be directly connected to the outer edge of the plate body 31. Specifically, the snap-fit ​​block 33 and the plate body 31 can be an integral structure, making the connection more secure and reducing assembly steps. Of course, the snap-fit ​​block 33 and the plate body 31 can also be separate structures, for example, fixed by adhesive or snap-fit ​​methods. This application does not limit this.

[0060] The locking block 33 is slidably disposed within the guide groove 15, and when the plate body 31 is connected to the locking block 33, the plate body 31 can move along the depth direction of the storage cavity 10a. Under the action of external force, such as the force applied by the user's hand, the plate body 31 will rotate relative to the box body 10, so that the locking block 33 selectively engages with one of the multiple locking slots 17, and the plate body 31 stops at the height position of the locking slot 17 connected to the locking block 33.

[0061] Specifically, when the box body 10 is cylindrical, the projection of the locking groove 17 in the radial direction of the box body 10 is outside the projection range of the guide groove 15. Furthermore, each locking groove 17, while connected to the guide groove 15, can extend circumferentially along the box body 10. Thus, when the plate body 31 rotates, the locking block 33 can engage with the locking groove 17 extending circumferentially along the box body 10. In addition, this application does not specifically limit the number of locking grooves 17. The number of locking grooves 17 can be selected according to the actual number of height positions required for the plate body 31 to remain, for example, two, three, or four, etc.

[0062] The sidewalls of the storage cavity 10a are configured to form guide grooves 15 and multiple snap-fit ​​grooves 17. The guide grooves 15 and multiple snap-fit ​​grooves 17 are combined to form a connection module. There are two sets of connection modules and two snap-fit ​​blocks 33, which are symmetrically distributed around the circumference of the main body 31. Each snap-fit ​​block 33 corresponds to one of the two sets of connection modules. In this way, the corresponding cooperation between the two snap-fit ​​blocks 33 and the two sets of connection modules can improve the stability of the main body 31 when it is placed in the storage cavity 10a at the required height position, and improve the stability of the packaged product supported by the main body 31.

[0063] Furthermore, please refer to the following: Figures 5 to 7 The locking slot 17 includes a first sub-slot 17a and a second sub-slot 17b. On the circumference of the housing 10, the first sub-slot 17a and the second sub-slot 17b are respectively located on opposite sides of the guide slot 15. The first sub-slot 17a and the second sub-slot 17b extend along the circumference of the housing 10, and they extend in opposite directions. The locking block 33 selectively engages with either the first sub-slot 17a or the second sub-slot 17b of the locking slot 17. Thus, during actual rotation, when the user applies external force to drive the main body 31 of the support plate 30 to rotate, whether clockwise or counterclockwise, the locking block 33 can engage with either the second sub-slot 17b or the first sub-slot 17a of the locking slot 17. With this design, the user can directly and accurately engage the locking block 33 without needing to pay attention or possess experience or professional knowledge, thus facilitating operation and improving the user experience.

[0064] To prevent the locking block 33 from detaching from the first sub-slot 17a or the second sub-slot 17b of the locking groove 17 due to excessive bumps during transportation, please refer to [further details needed]. Figure 6In this application, the first sub-slot 17a and the second sub-slot 17b of the snap-fit ​​slot 17 can each include a first slot segment 17c, a second slot segment 17d, and a third slot segment 17e connected in sequence. The first slot segment 17c is connected to the guide slot 15 and is spaced apart from the third slot segment 17e in the depth direction of the storage cavity 10a, and both extend circumferentially along the box body 10. The second slot segment 17d extends in the depth direction of the storage cavity 10a. The snap-fit ​​block 33 can pass through the first slot segment 17c and the second slot segment 17d in sequence and then snap into the third slot segment 17e. With this setup, the locking block 33 will eventually be fixedly engaged in the third slot 17e. Understandably, for the locking block 33 to detach from the third slot 17e, the packaging box 100 needs to tilt in the opposite direction to the extension direction of the third slot 17e. Similarly, for the locking block 33 to detach from the first slot 17c, the packaging box 100 needs to tilt in the opposite direction to the extension direction of the first slot 17c. Since the extension direction of the first slot 17c is opposite to the extension direction of the third slot 17e, the packaging box 100 needs to tilt in at least two opposite directions to cause the locking block 33 to detach from either the first sub-slot 17a or the second sub-slot 17b of the locking groove 17. This reduces the likelihood of the locking block 33 detaching from either the first sub-slot 17a or the second sub-slot 17b of the locking groove 17, thereby preventing the support plate 30 from shifting during transportation and thus preventing the packaged product from falling and being damaged.

[0065] For the second form, please refer to the relevant documents. Figures 8 to 9 A guide rail 18 is provided on the side wall of the storage cavity 10a, extending along the depth direction of the storage cavity 10a. It is understood that the guide rail 18 protrudes from the side wall of the storage cavity 10a, and the guide rail 18 can be connected to the side wall of the storage cavity 10a by means of threaded connection, snap-fit ​​connection, or adhesive bonding. The guide rail 18 has a plurality of limiting and fixing grooves 19 spaced apart in its extending direction.

[0066] The main body 31 has a limiting notch 31b for the guide rail 18 to pass through, and is slidably disposed on the guide rail 18. Thus, by avoiding the guide rail 18 through the limiting notch 31b, the main body 31 can move along the depth direction of the storage cavity 10a. Under the action of external force, such as the force applied by the user's hand, the main body 31 rotates relative to the box body 10, so that the part of the main body 31 other than the limiting notch 31b is selectively fixed to one of the multiple limiting fixing grooves 19, so that the main body 31 stops at the height position of the limiting fixing groove 19 connected to it. Specifically, when the main body 31 moves to the desired height position, the limiting notch 31b of the main body 31 corresponds to the limiting fixing groove 19 corresponding to that height position. At this time, the user can apply force to rotate the main body 31, so that the part of the main body 31 other than the limiting notch 31b is fixed in the limiting fixing groove 19. In this form, whether the user rotates clockwise or counterclockwise, the part of the main body 31 other than the limiting notch 31b can cooperate with the limiting fixing groove 19.

[0067] The sidewalls of the storage cavity 10a are configured with guide rails 18, two in number, and two limiting notches 31b, which are symmetrically distributed circumferentially on the main body 31. Each limiting notch 31b corresponds one-to-one with a guide rail 18. This correspondence between the limiting notches 31b and the guide rails 18 improves the stability of the main body 31 when it is positioned at the desired height within the storage cavity 10a, thus enhancing the stability of the packaged product supported by the main body 31.

[0068] The technical solution of this application allows the plate body 31 to rotate relative to the box body 10 under the action of external force, so that the locking block 33 connected to the plate body 31 can selectively engage with one of the multiple locking slots 17, or allow the portion of the plate body 31 other than the limiting notch 31b to selectively engage with one of the multiple limiting fixing slots 19. In this way, the plate body 31 can be adapted to different sizes of packaged products to stay at different height positions, so that the packaged products can be placed in the storage cavity 10a of the box body 10 under the support of the plate body 31. Therefore, it is not necessary to produce boxes 10 of different sizes to fit different sizes of packaged products, which is conducive to the standardization of the size of the packaging box 100. Moreover, compared with the existing packaging boxes whose support plates cannot be height adjusted, the support plate 30 of the packaging box 100 of this application can be height adjusted, which is more operable and can provide a better user experience.

[0069] Furthermore, in the case of the packaging box 100 of this application, whether the supporting plate 30 is fixedly connected to the plate body 31 by the locking block 33, which cooperates with the locking groove 17 by rotating the plate body 31, or the plate body 31 has a notch, which cooperates with the limiting and fixing groove 19 by rotating the plate body 31, the supporting plate 30 does not need to be provided with additional parts to cooperate with the locking groove 17 or the limiting and fixing groove 19. Thus, the structure of the packaging box 100 of this application is more simplified and the number of components is less. While reducing assembly steps, it can also reduce the weight of the packaging box 100, making it more suitable for transportation scenarios.

[0070] The above content, through two specific cooperation forms between the support plate 30 and the storage cavity 10a of the box body 10, illustrates the advantage of the packaging box 100 of this application in that it can adapt to packaged products of different sizes. Based on this, please refer to... Figures 2 to 4 In order to further improve the stability of the support plate 30 in the storage cavity 10a, the buffer 50 of this application can be configured as a compression spring 51, one end of the compression spring 51 abutting against the bottom wall of the storage cavity 10a, and the other end abutting against the surface of the plate body 31 facing the compression spring 51.

[0071] It is understood that the connection between the compression spring 51 and the bottom wall of the storage cavity 10a can be adhesive or nailed, etc., and this application does not limit this. With the buffer 50, the compression spring 51 can give the plate body 31 an upward elastic force (that is, in the depth direction of the storage cavity 10a, the compression spring 51 gives the plate body 31 an elastic force away from the bottom wall of the storage cavity 10a). With this configuration, in the first engagement type, when the locking block 33 is engaged in the first sub-slot 17a or the second sub-slot 17b, the locking block 33 will abut against the groove wall of the first sub-slot 17a or the second sub-slot 17b under the drive of the compression spring 51. Thus, even if the packaging box 100 falls and tipes over, the probability of the locking block 33 disengaging from the locking groove 17 will be greatly reduced. In the second engagement type, when the part of the plate body 31 other than the limiting notch 31b is fixed to the limiting fixing groove 19, the plate body 31 will abut against the groove wall of the limiting fixing groove 19 under the drive of the compression spring 51. Thus, even if the packaging box 100 falls and tipes over, the probability of the plate body 31 disengaging from the limiting fixing groove 19 will be greatly reduced.

[0072] Meanwhile, in actual operation, when the height of the main body 31 needs to be adjusted, especially when the main body 31 needs to be raised, when the locking block 33 disengages from the locking groove 17, or when the main body 31 disengages from the limiting fixing groove 19, the compression spring 51 will also give the main body 31 an upward elastic force, so that the main body 31 has an upward trend, making it easier for the user to operate.

[0073] To improve the stability of the packaged product when placed in the storage cavity 10a, the main body 31 of this application has an open limiting groove 35a on the side facing the compression spring 51. The central axis of the limiting groove 35a coincides with the central axis of the storage cavity 10a. One end of the compression spring 51 abuts against the center of the bottom wall of the storage cavity 10a, and the other end passes through the open groove 35a, so that the center line of the compression spring 51 coincides with the central axis of the storage cavity 10a. Thus, under the limiting of the limiting groove 35a, the compression spring 51 will be located at the center of the storage cavity 10a, and its position is not easily shifted. Therefore, the elastic force provided by the compression spring 51 to the main body 31 will also act on the center of the main body 31, making it less likely for the main body 31 to tip over. This allows the packaged product supported by the main body 31 to be placed more stably in the storage cavity 10a.

[0074] In one structural form, the support plate 30 further includes a limiting part 35, which is connected to the plate surface of the plate body 31 facing the compression spring 51 and protrudes in a direction away from the plate body 31. The inner sidewall of the limiting part 35 cooperates with the plate surface of the plate body 31 facing the compression spring 51 to form a limiting groove 35a. In this configuration, compared to the form where the limiting groove 35a is formed by a recess in the plate surface of the plate body 31 facing the compression spring 51, the plate body 31 in this configuration needs to have a certain thickness to ensure that the limiting groove 35a has a certain depth to limit one end of the compression spring 51. In this application, the limiting groove 35a is formed by the cooperation of the protruding limiting part 35 with the plate body 31 without needing to form a recess in the plate body itself. Therefore, the thickness of the plate body 31 in this application does not need to be too large, thus reducing the volume of the plate body 31 and its weight, thereby reducing the overall weight of the packaging box 100 and making it more suitable for transportation. Of course, in other structural forms, the limiting groove 35a in this application can also be formed by a recess in the plate surface of the plate body 31 facing the compression spring 51; this application does not limit this.

[0075] The limiting part 35 can be an integral structure with the plate body 31, so that the connection between the two is more stable and not easy to separate. Of course, the limiting part 35 can also be detachably connected to the plate body 31, so that when the specifications of the compression spring 51 change, the limiting part 35 that is compatible with the compression spring 51 can be selected to connect with the plate body 31.

[0076] Furthermore, the depth of the limiting groove 35a in this application is configured to be equal to the length of the compression spring 51 in its ultimate compression state. It is understood that when the compression spring 51 is in its ultimate compression state, which is the lowest height at which the plate body 31 can move within the box 10, the limiting groove 35a, with its depth equal to the length of the compression spring 51 in its ultimate compression state, can maximally limit the compression spring 51, ensuring that its position does not shift. Of course, the depth of the limiting groove 35a in this application can also be configured to be less than the length of the compression spring 51 in its ultimate compression state; this application does not impose any limitation on this.

[0077] To facilitate the user in applying force to the main body 31, please refer to [the relevant documentation]. Figures 3 to 4 A handle position 31a is formed on the surface of the main body 31. In actual use, the user can first remove the top box 11, then put his hand into the bottom box 13, and use his fingers to hook onto the handle position 31a to form a force point, and then apply force to drive the main body 31 to rotate. This makes operation more convenient and improves the user experience. Of course, in addition to using his fingers to cooperate with the handle position 31a, the user can also use external tools to cooperate with the handle position 31a. This application does not limit the object that the handle position 31a can be cooperated with.

[0078] In some structural forms, there can be two handle positions 31a, which are arranged at intervals along the circumference of the main body 31. With this arrangement, the user can insert the thumb and forefinger of one hand into the two handle positions 31a respectively to apply force to drive the main body 31 to rotate. This makes the operation more convenient for the user and can further improve the user experience.

[0079] In one embodiment, when the floor box 13 is configured as a paper box, if the floor box 13 is a single-layer cardboard structure, and a guide groove 15 is formed on the cavity sidewall of the storage cavity 10a, the guide groove 15 will penetrate the entire floor box 13 due to the insufficient thickness of the floor box 13, affecting the external aesthetics. When a guide rail 18 is provided on the cavity sidewall of the storage cavity 10a, the single-layer cardboard has poor strength and cannot support the guide rail 18 well, making it prone to deformation.

[0080] Based on this, the floor box 13 of this application may include a first cardboard layer and a second cardboard layer. The second cardboard layer is connected to the inner side of the first cardboard layer, and the inner wall surface of the second cardboard layer facing away from the first cardboard layer is configured as the cavity sidewall of the storage cavity 10a. Thus, when the cavity sidewall of the storage cavity 10a forms a guide groove 15, the guide groove 15 only passes through the second cardboard layer, and the first cardboard layer can shield the second cardboard layer without affecting the external aesthetics of the floor box 13. When the cavity sidewall of the storage cavity 10a is provided with a guide rail 18, the overall strength of the floor box 13 can be improved by the arrangement of the first and second cardboard layers, making it less prone to deformation and providing better support for the guide rail 18.

[0081] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0082] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A packaging box, characterized in that, It includes a box body and a support plate, wherein the box body forms a storage cavity for accommodating the support plate; The cavity sidewall of the storage cavity is formed with a guide groove and a plurality of snap-fit ​​grooves that connect to the guide groove. The guide groove extends along the depth direction of the storage cavity, and the plurality of snap-fit ​​grooves are arranged at intervals along the extension direction of the guide groove. The support plate includes a plate body and a locking block connected to the plate body. The locking block is configured to be slidably disposed in the guide groove. Under the action of an external force, the plate body rotates relative to the box body, so that the locking block selectively engages with one of the plurality of locking slots, and the plate body stops at the height position of the locking slot connected to the locking block. The snap-fit ​​slot includes a first slot segment, a second slot segment, and a third slot segment connected in sequence. The first groove segment is connected to the guide groove and is spaced apart from the third groove segment in the depth direction of the storage cavity. Both the first groove segment and the third groove segment extend along the circumference of the box body, and the first groove segment and the third groove segment extend in opposite directions. The second groove segment extends along the depth direction of the storage cavity. The card block can pass through the first slot and the second slot in sequence and then be inserted into the third slot; Alternatively, a guide rail is provided on the side wall of the storage cavity, the guide rail extends along the depth direction of the storage cavity, and forms a plurality of limiting and fixing grooves spaced apart in its extension direction. The support plate includes a plate body, which has a limiting notch for the guide rail to pass through and is slidably disposed on the guide rail. Under the action of external force, the plate body rotates relative to the box body, so that the part of the plate body other than the limiting notch is selectively fixed to one of the plurality of limiting and fixing grooves, and the plate body stops at the height position of the limiting and fixing groove connected thereto.

2. The packaging box as described in claim 1, characterized in that, The cavity sidewall of the storage cavity is configured to form the guide groove and a plurality of the snap-fit ​​grooves. The snap-fit ​​groove includes a first sub-groove and a second sub-groove. The first sub-groove and the second sub-groove each include a first groove segment, a second groove segment and a third groove segment that are connected in sequence. In the circumferential direction of the box body, the first sub-slot and the second sub-slot are respectively disposed on opposite sides of the guide groove; The card block selectively engages into either the first or second sub-slot of one of the card slots.

3. The packaging box as described in claim 1, characterized in that, The cavity sidewall of the storage cavity is configured to form the guide groove and a plurality of the snap-fit ​​grooves. The guide groove and the plurality of snap-fit ​​grooves are combined to form a connection module. There are two sets of connection modules and two snap-fit ​​blocks. The two snap-fit ​​blocks are symmetrically distributed in the circumferential direction of the plate body. The two snap-fit ​​blocks correspond one-to-one with the two sets of connection modules. Alternatively, the sidewall of the storage cavity is configured to accommodate the guide rails, with two guide rails and two limiting notches, and the two limiting notches are symmetrically distributed in the circumferential direction of the plate body, wherein the two limiting notches correspond one-to-one with the two guide rails.

4. The packaging box as described in any one of claims 1 to 3, characterized in that, It also includes a buffer element, which is housed within the storage cavity and connected between the bottom wall of the storage cavity and the main body of the plate.

5. The packaging box as described in claim 4, characterized in that, The buffer is a compression spring, and the plate body has an open limiting groove on the side facing the compression spring, and the central axis of the limiting groove coincides with the central axis of the storage cavity; One end of the compression spring abuts against the center of the bottom wall of the storage cavity, and the other end passes through the opening to be positioned in the limiting groove, so that the center line of the compression spring coincides with the central axis of the storage cavity.

6. The packaging box as described in claim 5, characterized in that, The support plate also includes a limiting part, which is connected to the plate surface of the plate body facing the compression spring and protrudes in a direction away from the plate body; The inner wall of the limiting part cooperates with the plate surface of the plate body facing the compression spring to form the limiting groove.

7. The packaging box as described in claim 5, characterized in that, The depth of the limiting groove is equal to the length of the compression spring under extreme compression.

8. The packaging box as described in claim 1, characterized in that, The main body of the plate has a handle formed on its surface.

9. The packaging box as described in claim 1, characterized in that, The box body includes a top box and a bottom box, the top box is fitted onto the bottom box, and together with the bottom box, they enclose the storage cavity; The top box has an open mounting groove, and the bottom box passes through the open groove and is interference-fitted with the mounting groove.

10. The packaging box as described in claim 9, characterized in that, The box is a cardboard box and includes a first cardboard layer and a second cardboard layer, with the second cardboard layer connected to the inside of the first cardboard layer; The inner wall surface of the second cardboard layer facing away from the first cardboard layer is configured as the cavity sidewall of the storage cavity.

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