Carton with self-locking structure

Abstract

The utility model relates to the technical field of cartons, in particular to a carton with a self-locking structure, which comprises a carton body and further comprises two lower pressing plates, a left cover plate, a right cover plate, an upper pressing plate, a left folding sheet and a right folding sheet, the two lower pressing plates, the left cover plate and the right cover plate are arranged below the carton body, and the two lower pressing plates are respectively positioned on the front side and the rear side below the carton body. The left cover plate and the right cover plate are symmetrically arranged on the left side and the right side of the lower portion of the carton body, the left cover plate and the right cover plate are both located below the lower pressing plate, two upper pressing plates, a left folding piece and a right folding piece are arranged on the carton body, the two upper pressing plates are located on the front side and the rear side of the carton body respectively, and the left folding piece and the right folding piece are arranged on the left side and the right side of the carton body respectively. Since the top surface and the bottom surface of the carton body are packaged without using plastic adhesive tapes, the problem that the bottom surface of an existing carton still needs to be packaged by the adhesive tapes, and the environmental pollution is still caused after the adhesive tapes are discarded is solved.

Description

Technical Field

[0001] This utility model belongs to the field of cardboard box technology, specifically relating to a cardboard box with a self-locking structure. Background Technology

[0002] With the continuous development of technology, the logistics industry has developed rapidly. After the products are manufactured, they need to be packaged in cardboard boxes to facilitate storage and transportation. Existing cardboard boxes are usually sealed with plastic tape. However, after the plastic tape is used and discarded, it is difficult to be decomposed by the soil due to its special material, thus causing environmental pollution.

[0003] The prior art CN108860912A discloses a tape-free anti-theft cardboard box, which achieves tight sealing through its own structure. Specifically, it achieves this by blocking the movement of the locking tongue with a locking block, thus avoiding the use of tape, saving sealing costs, reducing environmental pollution, and achieving a good effect of protecting the environment.

[0004] However, although the cardboard boxes mentioned above can avoid using tape on the top of the box, the bottom of the box still needs to be sealed with tape, which means that the tape on the bottom of the box will still cause environmental pollution after it is discarded. Utility Model Content

[0005] The purpose of this utility model is to provide a cardboard box with a self-locking structure, which aims to solve the technical problem that although existing cardboard boxes can avoid the use of tape on the top surface, the bottom surface of the cardboard box still needs to be sealed with tape, resulting in environmental pollution caused by the tape on the bottom surface of the cardboard box after it is discarded.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a cardboard box with a self-locking structure, including a cardboard box body, a lower pressure plate, a left cover plate, a right cover plate, an upper pressure plate, a left fold, and a right fold. Two lower pressure plates, a left cover plate, and a right cover plate are disposed under the cardboard box body, respectively located on the front and rear sides of the cardboard box body. The left cover plate and the right cover plate are symmetrically disposed on the left and right sides of the cardboard box body, and both the left and right cover plates are located under the lower pressure plates. Two upper pressure plates, a left fold, and a right fold are disposed on the cardboard box body, respectively located on the front and rear sides of the cardboard box body. The left fold and the right fold are disposed on the left and right sides of the cardboard box body, and both the left and right folds are located on the upper pressure plates.

[0008] The left cover plate has a protrusion, and the right cover plate has a groove. The size of the groove is slightly larger than the size of the protrusion. The protrusion passes through the groove to connect the left cover plate and the right cover plate, thereby achieving self-locking.

[0009] The left flap has a slot, and the right flap has a protrusion. The protrusion is inserted into the slot to connect the left flap and the right flap, thereby achieving self-locking.

[0010] Both the lower pressure plate and the upper pressure plate have placement slots, and each placement slot in the lower pressure plate and the upper pressure plate is provided with a Velcro sub-attachment. The left cover plate, the right cover plate, and the lower left flap are all provided with Velcro female-attachments. The positions of the Velcro sub-attachments and the Velcro female-attachments correspond one-to-one, and the Velcro sub-attachments and the Velcro female-attachments are connected by adhesive.

[0011] The carton body is provided with a limiting block, the limiting block has a limiting groove, and the left fold has a limiting plate. The limiting plate is inserted into the limiting groove of the limiting block to limit the left fold within the carton body.

[0012] This utility model discloses a cardboard box with a self-locking structure. Upper pressure plates are respectively arranged on the front and rear sides of the cardboard box body, and left and right folding flaps are respectively arranged on the left and right sides above the upper pressure plates. The left and right folding flaps are self-locking, thus eliminating the need for plastic tape to seal the top surface of the cardboard box body. Lower pressure plates are respectively arranged on the front and rear sides of the cardboard box body, and left and right cover plates are respectively arranged on the left and right sides below the lower pressure plates. The left and right cover plates are self-locking, thus eliminating the need for plastic tape to seal the bottom surface of the cardboard box body. Since neither the top nor bottom surface of the cardboard box body needs plastic tape for sealing, this invention solves the technical problem of existing cardboard boxes where, although the top surface can avoid the use of tape, the bottom surface still requires tape sealing, resulting in environmental pollution after the tape is discarded. Attached Figure Description

[0013] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of a cardboard box with a self-locking structure according to the first embodiment of this utility model.

[0015] Figure 2 This is a cross-sectional schematic diagram of the limiting block of a cardboard box with a self-locking structure according to the first embodiment of this utility model.

[0016] Figure 3 This is a cross-sectional view of the cardboard box with a self-locking structure along the Velcro fastener of the first embodiment of this utility model.

[0017] Figure 4 This is the first embodiment of the cardboard box with a self-locking structure of this utility model. Figure 3 Enlarged view of point A.

[0018] In the diagram: 101 - Carton body, 102 - Lower pressure plate, 103 - Left cover plate, 104 - Right cover plate, 105 - Upper pressure plate, 106 - Left fold, 107 - Right fold, 108 - Protrusion, 109 - Groove, 110 - Slot, 111 - Protruding plate, 112 - Placement slot, 113 - Velcro attachment, 114 - Velcro attachment, 115 - Limiting block, 116 - Limiting plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] First Embodiment

[0021] Please see Figures 1-4 , Figure 1 This is a schematic diagram of the overall structure of the cardboard box with a self-locking structure according to the first embodiment of this utility model. Figure 2 This is a cross-sectional view of the limiting block 115 of the cardboard box with a self-locking structure according to the first embodiment of this utility model. Figure 3 This is a cross-sectional view of the cardboard box with a self-locking structure along the Velcro 113 according to the first embodiment of this utility model. Figure 4 This is the first embodiment of the cardboard box with a self-locking structure of this utility model. Figure 3 Enlarged view of point A.

[0022] This utility model provides a cardboard box with a self-locking structure, including a box body 101, a lower pressure plate 102, a left cover plate 103, a right cover plate 104, an upper pressure plate 105, a left folding flap 106, and a right folding flap 107. This solution solves the problem that while the top of the cardboard box avoids the use of tape, the bottom still requires tape sealing, leading to environmental pollution from the discarded tape. Therefore, this solution can be used in scenarios where the box body 101 is sealed.

[0023] In this embodiment, upper pressure plates 105 are respectively provided on the front and rear sides above the carton body 101, and left folding flaps 106 and right folding flaps 107 are respectively provided on the left and right sides above the upper pressure plates 105. The left folding flaps 106 and right folding flaps 107 are self-locking, so the top surface of the carton body 101 can be sealed without the use of plastic tape. Lower pressure plates 102 are respectively provided on the front and rear sides below the carton body 101, and left and right folding flaps 107 are respectively provided on the left and right sides below the lower pressure plates 102. The left cover plate 103 and the right cover plate 104 are respectively provided on both sides. The left cover plate 103 and the right cover plate 104 can be self-locking, so that the bottom surface of the carton body 101 can be sealed without the use of plastic tape. Since the sealing of the top and bottom surfaces of the carton body 101 does not require the use of plastic tape, it solves the technical problem that although existing cartons can avoid the use of tape on the top surface, the bottom surface of the carton still needs to be sealed with tape, which causes environmental pollution after the tape on the bottom surface of the carton is discarded.

[0024] The carton body 101 is provided with two lower pressure plates 102, a left cover plate 103, and a right cover plate 104. The two lower pressure plates 102 are respectively located on the front and rear sides of the carton body 101. The left cover plate 103 and the right cover plate 104 are symmetrically arranged on the left and right sides of the carton body 101, and both the left cover plate 103 and the right cover plate 104 are located under the lower pressure plates 102. The carton body 101 is provided with two upper pressure plates 105, a left folding flap 106, and a right folding flap 107. The two upper pressure plates 105 are respectively located on the front and rear sides of the carton body 101. The left folding flap 106 and the right folding flap 107 are respectively arranged on the left and right sides of the carton body 101, and both the left folding flap 106 and the right folding flap 107 are located on the upper pressure plates 105.

[0025] Secondly, the left cover plate 103 has a protrusion 108, and the right cover plate 104 has a groove 109. The size of the groove 109 is slightly larger than the size of the protrusion 108. The protrusion 108 is passed through the groove 109 to connect the left cover plate 103 and the right cover plate 104, thereby achieving self-locking.

[0026] Furthermore, the left flap 106 has a slot 110, and the right flap 107 has a protrusion 111. The protrusion 111 is inserted into the slot 110 to connect the left flap 106 and the right flap 107, thereby achieving self-locking.

[0027] Meanwhile, both the lower pressure plate 102 and the upper pressure plate 105 have placement grooves 112, and each of the placement grooves 112 of the lower pressure plate 102 and the upper pressure plate 105 is provided with a Velcro tab 113. The left cover plate 103 and the right cover plate 104 and the left flap 106 are provided with Velcro female tabs 114. The positions of the Velcro tabs 113 and the Velcro female tabs 114 correspond one-to-one, and the Velcro tabs 113 and the Velcro female tabs 114 are connected by adhesive, so that the left cover plate 103 or the right cover plate 104 can be connected to the lower pressure plate 102, and the left flap 106 can be connected to the upper pressure plate 105, thereby further improving the sealing effect of the top and bottom surfaces of the carton body 101.

[0028] Finally, a limiting block 115 is provided inside the carton body 101. The limiting block 115 has a limiting groove, and the left fold 106 has a limiting plate 116. The limiting plate 116 is inserted into the limiting groove of the limiting block 115 to limit the left fold 106 inside the carton body 101.

[0029] When using this utility model, when sealing the bottom of the carton body 101, both lower pressure plates 102 on the front and rear sides below the carton body 101 are folded in, so that both lower pressure plates 102 are perpendicular to the carton body 101. Then, the left cover plate 103 and the right cover plate 104 below the lower pressure plates 102 are folded in, so that the protrusion 108 of the left cover plate 103 passes through the groove 109 of the right cover plate 104, thereby allowing the left cover plate 103 to pass through. 3. Connected to the right cover plate 104, it achieves self-locking, thereby sealing the bottom of the carton body 101. At this time, the Velcro female stickers 114 on the left cover plate 103 and the right cover plate 104 will be attached to the Velcro female stickers 113 in the placement groove 112 of the lower pressure plate 102, so that the left cover plate 103 or the right cover plate 104 can be connected to the lower pressure plate 102, thereby further improving the sealing effect of the bottom of the carton body 101.

[0030] When sealing the top surface of the carton body 101, both upper pressure plates 105 on the front and rear sides of the upper part of the carton body 101 are folded in, so that both upper pressure plates 105 are perpendicular to the carton body 101. Then, the left fold 106 and the right fold 107 above the upper pressure plates 105 are folded in. After that, the limiting plate 116 is inserted into the limiting groove of the limiting block 115, thereby limiting the left fold 106 inside the carton body 101. Subsequently, the protrusion 11 of the right fold 107 is... Insert the flap 106 into the slot 110 of the left flap 106, thereby connecting the left flap 106 with the right flap 107 to achieve self-locking, thus sealing the cover of the carton body 101. At this time, the Velcro female sticker 114 under the left flap 106 will stick together with the Velcro female sticker 113 in the placement slot 112 of the upper pressure plate 105, thereby connecting the left flap 106 with the upper pressure plate 105, which can further improve the sealing effect of the top surface of the carton body 101.

[0031] When sealing the top and bottom surfaces of the carton body 101, a self-locking method is used for sealing, so that the top and bottom surfaces of the carton body 101 do not need to be sealed with plastic tape. This solves the technical problem that although existing cartons can avoid the use of tape on the top surface, the bottom surface of the carton still needs to be sealed with tape, which causes environmental pollution after the tape on the bottom surface of the carton is discarded.

[0032] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A cardboard box with a self-locking structure, comprising a cardboard box body, characterized in that: It also includes a lower pressure plate, a left cover plate, a right cover plate, an upper pressure plate, a left fold, and a right fold. The carton body is provided with two lower pressure plates, a left cover plate, and a right cover plate. The two lower pressure plates are respectively located on the front and rear sides of the carton body. The left cover plate and the right cover plate are symmetrically arranged on the left and right sides of the carton body, and both the left cover plate and the right cover plate are located under the lower pressure plates. The carton body is provided with two upper pressure plates, a left fold, and a right fold. The two upper pressure plates are respectively located on the front and rear sides of the carton body. The left fold and the right fold are respectively arranged on the left and right sides of the carton body, and both the left fold and the right fold are located on the upper pressure plates.

2. The cardboard box with a self-locking structure as described in claim 1, characterized in that: The left cover plate has a protrusion, and the right cover plate has a groove. The size of the groove is slightly larger than the size of the protrusion. The protrusion passes through the groove to connect the left cover plate and the right cover plate, thereby achieving self-locking.

3. The cardboard box with a self-locking structure as described in claim 1, characterized in that: The left flap has a slot, and the right flap has a protrusion. The protrusion is inserted into the slot to connect the left flap and the right flap, thereby achieving self-locking.

4. The cardboard box with a self-locking structure as described in claim 1, characterized in that: Both the lower pressure plate and the upper pressure plate have placement slots, and each placement slot of the lower pressure plate and the upper pressure plate is provided with a Velcro sub-attachment. The left cover plate, the right cover plate, and the lower left flap are all provided with Velcro female-attachments. The positions of the Velcro sub-attachments and the Velcro female-attachments correspond one-to-one, and the Velcro sub-attachments and the Velcro female-attachments are connected by adhesive.

5. The cardboard box with a self-locking structure as described in claim 1, characterized in that: A limiting block is provided inside the carton body. The limiting block has a limiting groove. The left fold has a limiting plate. The limiting plate is inserted into the limiting groove of the limiting block to limit the left fold inside the carton body.

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