Packaging box convenient to fold

Abstract

The utility model belongs to the technical field of packaging boxes, and discloses a packaging box convenient to fold, which comprises a bottom plate, a folding plate fixedly connected to the top end of the bottom plate, a top frame fixedly connected to the top end of the folding plate, and a folding supporting assembly arranged between the bottom plate and the top frame. The folding supporting assembly comprises two sets of lower fixing blocks symmetrically and fixedly connected to the top end of the bottom plate, two sets of upper fixing blocks are symmetrically and fixedly connected to the top end of the top frame, guide rods are fixedly connected between the two sets of lower fixing blocks and the two sets of upper fixing blocks, the outer sides of the two sets of guide rods are symmetrically and slidably sleeved with connecting blocks, and supporting rods are hinged between the two sets of connecting blocks. According to the packaging box, through the arrangement of the folding supporting assembly, when the packaging box needs to be used, the top frame needs to be lifted upwards till all the layer plates of the folding plate are completely opened, and stable supporting of the packaging box in the using state can be achieved through magnetic connection between the positive pole magnetic blocks on the connecting blocks and the negative pole magnetic blocks on the partition blocks; and the storage and bearing capacity of the packaging box in use is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging boxes, in particular to a packaging box which is easy to fold. Background Art

[0002] Packaging box is a commonly used form of commodity packaging, and paper packaging box is more commonly used. Its advantages are light weight, easy to carry, low cost and beautiful printing. Usually, the overall shape of the packaging box is fixed after it is completed. Regardless of whether there are items in the packaging box, it must occupy the same space, so that packaging boxes without items will waste space during storage and transportation. Later, foldable packaging boxes appeared. During transportation, the box body and the connecting edges can be folded on the same plane to save space for packaging boxes.

[0003] A Chinese patent discloses a foldable packaging box for easy storage (authorization publication number CN208715762U). The packaging box is provided with at least one folding portion, which includes an upper folding portion that can be folded upward to enter a storage cavity and a frustum portion that can push the upper folding portion to fold. The upper folding portion includes multiple folding portions.

[0004] Although the packaging box is provided with at least one folding portion so that the volume of the packaging box can be reduced after the folding portions are stored, when the folding portions are opened for use, there is no obvious load-bearing structure, resulting in the packaging box as a whole being relatively soft and having a weak load-bearing capacity. In addition, when folded for storage, the packaging boxes are also very likely to shake against each other and cannot be well stacked for storage. Therefore, a packaging box that is easy to fold is proposed to solve such problems. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a packaging box that is easy to fold.

[0006] To achieve the above object, the present invention provides the following technical solution: a packaging box that is easy to fold, comprising a bottom plate, a folding plate fixedly connected to the top of the bottom plate, a top frame fixedly connected to the top of the folding plate, and a folding support assembly provided between the bottom plate and the top frame;

[0007] The folding support assembly includes two groups of lower fixing blocks symmetrically fixedly connected to the top of the bottom plate, two groups of upper fixing blocks symmetrically fixedly connected to the top of the top frame, guide rods are fixedly connected between the two groups of lower fixing blocks and the upper fixing blocks, connecting blocks are symmetrically slidably sleeved on the outer sides of the two groups of guide rods, and support rods are hinged between the two groups of connecting blocks;

[0008] A cover plate is hinged on one side of the inner cavity of the top frame.

[0009] Preferably, spacer blocks are fixedly sleeved in the middle of the two groups of guide rods, and the two spacer blocks are respectively fixedly connected to the top end of the bottom plate and the bottom end of the top frame.

[0010] Preferably, two positive magnetic blocks are symmetrically and fixedly connected to both sides of the two spacer blocks, negative magnetic blocks are fixedly connected to the inner sides of the two connecting blocks, and the positive magnetic blocks and the negative magnetic blocks are magnetically linked.

[0011] Preferably, lock blocks are fixedly connected to the outer sides of the two lower fixing blocks, lock catches are fixedly installed on the outer sides of the two upper fixing blocks, and the two lock catches are respectively clamped with the two lock blocks.

[0012] Preferably, a clamping post is fixedly installed on one side of the top frame, a clamping head is fixedly installed at one end of the inner side of the cover plate, and the clamping head is movably clamped on the outer side of the clamping post.

[0013] Preferably, two groups of support blocks are symmetrically and fixedly connected to the bottom end of the bottom plate, and two groups of grooves are symmetrically formed in the top end of the top frame.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the setting of the folding support assembly of the present utility model, when the packaging box needs to be used, the user needs to lift the top frame upward until the layers of the folding plates are completely opened. At this time, the angles between the two support rods staggered on both sides of the packaging box and the bottom plate and the top frame tend to be ninety degrees, and the connecting blocks hinged to the support rods are in contact with the spacer blocks. Then, by using the magnetic link between the positive magnetic blocks on the connecting blocks and the negative magnetic blocks on the spacer blocks, the support stability of the packaging box in the use state can be realized, effectively ensuring the storage and bearing capacity of the packaging box during use.

[0016] 2. Through the combined use of the lock blocks and the lock catches and the support blocks and the grooves of the present utility model, when the packaging box does not need to be used, after the user folds the cover plate and covers it inside the top frame, the user can press the cover plate downward until the two support rods staggered on both sides of the packaging box are completely parallel. At this time, the packaging box is folded and compressed to the smallest volume state. Then, by using the clamping between the lock blocks and the lock catches, the packaging box is compressed to the smallest volume, and by using the sleeving between the two groups of support blocks and the two groups of grooves, the neatness and stability of the stacked packaging boxes can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a bottom view of the present utility model;

[0019] Figure 3 is the present utility modelFigure 2 Schematic enlarged view of part A in the present utility model;

[0020] Figure 4 For the present utility model Figure 2 Schematic enlarged view of part B in the present utility model;

[0021] Figure 5 Schematic view of the connection structure between the connection block and the support rod of the present utility model;

[0022] Figure 6 Side view of the present utility model.

[0023] In the figure: 1, bottom plate; 2, folding plate; 3, top frame; 4, cover plate; 5, lower fixing block; 6, upper fixing block; 7, spacer block; 8, guide rod; 9, connection block; 10, support rod; 11, positive magnetic block; 12, negative magnetic block; 13, clamping post; 14, clamping head; 15, locking block; 16, lock; 17, support block; 18, groove. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1 to 6 shown, the present utility model provides a folding - convenient packaging box, including a bottom plate 1. A folding plate 2 is fixedly connected to the top end of the bottom plate 1. A top frame 3 is fixedly connected to the top end of the folding plate 2. The bottom plate 1, the folding plate 2 and the top frame 3 are all parts of the whole packaging box. The folding plate 2, the top frame 3 and the bottom plate 1 are made of the same material, and the layers of the folding plate 2 can be folded with each other. Refer to the attached Figure 1 figure. At this time, the folding plate 2 is in a semi - open state. When the folding plate 2 is fully opened, the packaging box is in a state where items can be stored. When the layers of the folding plate 2 are folded together, the volume of the packaging box will be compressed to the minimum, and then it can meet the stacking and transportation of more packaging boxes.

[0026] A folding support assembly is provided between the bottom plate 1 and the top frame 3. The folding support assembly includes two groups of lower fixing blocks 5 symmetrically and fixedly connected to the top end of the bottom plate 1. The number of each group of lower fixing blocks 5 is two. Two groups of upper fixing blocks 6 are symmetrically and fixedly connected to the top end of the top frame 3. The number of each group of upper fixing blocks 6 is two. Guide rods 8 are fixedly connected between the two groups of lower fixing blocks 5 and upper fixing blocks 6. Connecting blocks 9 are symmetrically and slidably sleeved on the outer sides of the two groups of guide rods 8. Through the sliding sleeve connection between the connecting blocks 9 and the guide rods 8, the transverse sliding of the connecting blocks 9 on the guide rods 8 can be realized. Support rods 10 are hinged between the two groups of connecting blocks 9. Refer to the attached Figure 1 and the attached Figure 2 , the two support rods 10 located on both sides of the packaging box are in a parallel and staggered state, and the two support rods 10 are hinged. When the packaging box is in a retractable state, the angle between the two staggered support rods 10 and the bottom plate 1 and the top frame 3 tends to be ninety degrees. Then, the two groups of support rods 10 are used to support both sides of the packaging box, realizing the overall stability of the packaging box when storing items.

[0027] Partition blocks 7 are fixedly sleeved in the middle of the two groups of guide rods 8. The partition blocks 7 are square structures. The two groups of partition blocks 7 are respectively fixedly connected to the top end of the bottom plate 1 and the bottom end of the top frame 3. Two positive magnetic blocks 11 are symmetrically and fixedly connected to both sides of the two groups of partition blocks 7. Negative magnetic blocks 12 are fixedly connected to the inner sides of the two groups of connecting blocks 9. The positive magnetic blocks 11 and the negative magnetic blocks 12 are magnetically linked. When the packaging box is in a retractable state, at this time, the partition blocks 7 are in contact with the two connecting blocks 9 at the corresponding positions. By using the magnetic link between the positive magnetic blocks 11 and the negative magnetic blocks 12, the fixation of the two groups of support rods 10 when supporting the whole packaging box can be realized.

[0028] A cover plate 4 is hinged to one side of the inner cavity of the top frame 3, a clamping column 13 is fixedly installed on one side of the top frame 3, a clamping head 14 is fixedly installed at one end of the inner side of the cover plate 4, and the clamping head 14 is movably clamped on the outer side of the clamping column 13. By using the clamping connection between the clamping head 14 and the clamping column 13, the fixation of the cover plate 4 after closing on the top frame 3 can be realized, and the guest can realize the closing of the opening of the packaging box. Two groups of support blocks 17 are symmetrically and fixedly connected to the bottom end of the bottom plate 1. The number of each group of support blocks 17 is two. Two groups of grooves 18 are symmetrically opened at the top end of the top frame 3. The number of each group of grooves 18 is two. When the layers of the folding plate 2 are folded together so that the packaging box is compressed to the smallest volume, the user can stack the packaging boxes, and by using the sleeving between the two groups of support blocks 17 and the two groups of grooves 18, the neatness and stability of the stacked packaging boxes are ensured.

[0029] On the outer sides of both groups of lower fixing blocks 5, locking blocks 15 are fixedly connected. On the outer sides of both groups of upper fixing blocks 6, locking catches 16 are fixedly installed. The two groups of locking catches 16 are respectively engaged with the two groups of locking blocks 15. When the layers of the folding plate 2 are folded together, at this time, the two groups of lower fixing blocks 5 are in contact with the corresponding upper fixing blocks 6. At this time, by using the engagement between the locking catches 16 and the locking blocks 15, the overall stability of the packaging box during folding and storage is ensured.

[0030] The working principle and process of the present utility model <op

[0031] Refer to the appendix Figure 1 When the packaging box needs to be used, the user needs to continue to lift the top frame 3 upward until the layers of the folding plate 2 are completely opened. At this time, the angles between the two support rods 10 staggered on both sides of the packaging box and the bottom plate 1 and the top frame 3 tend to be ninety degrees, and the connecting block 9 hinged to the support rod 10 is in contact with the partition block 7. Then, by using the magnetic connection between the positive magnetic block 11 on the connecting block 9 and the negative magnetic block 12 on the partition block 7, the support stability of the packaging box in the use state can be achieved, and the user can then open the cover plate 4 and use the packaging box to store items.

[0032] When the packaging box does not need to be used, after the user folds the cover plate 4 and covers it inside the top frame 3, the user can press the cover plate 4 downward. Under the downward pressure of the cover plate 4, the positive magnetic block 11 on the connecting block 9 and the negative magnetic block 12 on the partition block 7 can be separated, and the two support rods 10 staggered on both sides of the packaging box swing hingedly around the connection point until the two support rods 10 are completely parallel to each other. At this time, the packaging box is folded and compressed to the smallest volume state, and the two groups of lower fixing blocks 5 are in contact with the two groups of upper fixing blocks 6. Then, the user can use the engagement between the locking blocks 15 and the locking catches 16 to fix the packaging box after folding and compression. [[ID=,13]]

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A folding - convenient packaging box, characterized in that: It includes a bottom plate (1), the top end of the bottom plate (1) is fixedly connected with a folding plate (2), the top end of the folding plate (2) is fixedly connected with a top frame (3), and a folding support assembly is arranged between the bottom plate (1) and the top frame (3); The folding support assembly includes two groups of lower fixing blocks (5) symmetrically and fixedly connected to the top end of the bottom plate (1), two groups of upper fixing blocks (6) symmetrically and fixedly connected to the top end of the top frame (3), guide rods (8) are fixedly connected between the two groups of lower fixing blocks (5) and upper fixing blocks (6), connection blocks (9) are symmetrically sleeved on the outer sides of the two groups of guide rods (8), and support rods (10) are hinged between the two groups of connection blocks (9); One side of the inner cavity of the top frame (3) is hinged with a cover plate (4).

2. The foldable packaging box according to claim 1, wherein: Partition blocks (7) are fixedly sleeved in the middle of the two groups of guide rods (8), and the two groups of partition blocks (7) are respectively fixedly connected to the top end of the bottom plate (1) and the bottom end of the top frame (3).

3. The folding - convenient packaging box according to claim 2, characterized in that: Two positive magnetic blocks (11) are symmetrically and fixedly connected to both sides of the two groups of partition blocks (7), negative magnetic blocks (12) are fixedly connected to the inner sides of the two groups of connection blocks (9), and the positive magnetic blocks (11) and the negative magnetic blocks (12) are magnetically linked.

4. The foldable packaging box according to claim 1, wherein: Lock blocks (15) are fixedly connected to the outer sides of the two groups of lower fixing blocks (5), lock catches (16) are fixedly installed on the outer sides of the two groups of upper fixing blocks (6), and the two groups of lock catches (16) are respectively clamped with the two groups of lock blocks (15).

5. The folding - convenient packaging box according to claim 1, wherein: A clamping post (13) is fixedly installed on one side of the top frame (3), a clamping head (14) is fixedly installed at one end of the inner side of the cover plate (4), and the clamping head (14) is movably clamped on the outer side of the clamping post (13).

6. The foldable packaging box according to claim 1, wherein: Two groups of support blocks (17) are symmetrically and fixedly connected to the bottom end of the bottom plate (1), and two groups of grooves (18) are symmetrically formed in the top end of the top frame (3).

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