Plastic rocking cover packaging box with beam type structure

By introducing a beam structure into the plastic flap packaging box, the inner flap forms a stable beam connection with the box body, solving the problems of the inner flap being suspended, sagging, and deforming, improving the packaging box's pressure resistance and structural stability, and preventing tearing and collapse.

CN223865302UActive Publication Date: 2026-02-03QUZHOU MINGHAN PACKAGING MATERIALS CO LTD
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Patent Information

Application Number
CN202520621187.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-02-03
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing plastic flap packaging boxes have an inner flap that hangs down when the contents are not full, causing a gap between the inner and outer flaps. During stacking and handling, the flaps are prone to deformation and wrinkling, and the sealing tape may loosen and peel off, affecting the structural stability of the box. In severe cases, this can cause the packaging box to tear or collapse.

Method used

The design adopts a beam structure. By setting tongues and slots on both sides of the inner cover, the inner cover and the box body form a beam structure. The slot cover plate and screw are used to connect and enhance the support of the inner cover to the outer cover, forming a stable support structure.

Benefits of technology

It improves the pressure and flexural strength of plastic flap packaging boxes, avoids flap deformation and wrinkles and loosening of sealing tape, enhances the overall structural stability of packaging boxes, and prevents tearing and stack collapse.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223865302U_ABST
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Abstract

The utility model discloses a beam structure plastic swing cover packing box, relates to the plastic packing box technical field, including insert tongue, slot, slot cover plate, mounting hole, lock screw and screw, insert tongue is connected in the both sides of inner swing cover, the inner swing cover forms insert tongue by heating mode flattening, the slot is provided on the box body, the slot cover plate is provided with the mounting hole, the lock screw is provided on the slot cover plate, the mounting hole is provided on the slot cover plate, and the screw is provided on the slot cover plate. A slot is formed in the position, corresponding to the inserting tongue, of the box body in a hot pressing mode, the plane of the slot is larger than that of the inserting tongue, the slot cover plate is arranged on the surface of the slot, a narrow slit is defined by the slot cover plate and the slot, and the installation holes are formed in the slot cover plate and the box body respectively. And the screw rod passes through the slot cover plate and the mounting hole in the box body and is connected with the counter-locking screw. According to the plastic swing cover packaging box of the beam structure, when the plastic swing cover box is sealed, the inserting tongues are inserted into the inserting grooves, the beam structure is formed between the inner swing cover and the box bodies on the two sides, the outer swing cover is supported by the inner layer swing cover of the beam structure, and the compression resistance and the bending resistance of the swing covers of the packaging box are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to plastic packaging box technical field, concretely is a beam formula structure plastic shake cover packaging box. BACKGROUND

[0002] In combination with prior art and actual production and processing, the existing plastic shake cover packaging box, in the case that the content is not filled in the packaging box, the inner shake cover top is suspended and droops, the gap is formed between the inner shake cover and the outer shake cover after the sealing by the adhesive tape, the inner shake cover cannot support the outer shake cover, the shake cover is prone to deformation and wrinkle during stacking and carrying, the shake cover deformation and wrinkle cause the sealing adhesive tape to be loose and peeled, the shake cover deformation and the sealing adhesive tape loose and peeled affect the stability of the box structure, and the packaging box is torn and collapsed in severe cases, therefore, the beam formula structure plastic shake cover packaging box is provided to solve the problems in the above background. SUMMARY

[0003] The utility model discloses a beam formula structure plastic shake cover packaging box to solve the problems in the above background, in the case that the content is not filled in the packaging box, the inner shake cover top is suspended and droops, the gap is formed between the inner shake cover and the outer shake cover after the sealing by the adhesive tape, the inner shake cover cannot support the outer shake cover, the shake cover is prone to deformation and wrinkle during stacking and carrying, the shake cover deformation and wrinkle cause the sealing adhesive tape to be loose and peeled, the shake cover deformation and the sealing adhesive tape loose and peeled affect the stability of the box structure, and the packaging box is torn and collapsed in severe cases.

[0004] To achieve the above object, the utility model provides the following technical scheme: a beam formula structure plastic shake cover packaging box, including plug, slot, slot cover plate, mounting hole, lock screw and screw rod:

[0005] The plug is connected on both sides of the inner shake cover, the inner shake cover is flattened by heating to form the plug, the slot is arranged on the box body, the slot is formed on the box body by hot pressing at the position corresponding to the plug, and the plane of the slot is larger than the plug.

[0006] The slot cover plate is arranged on the surface of the slot, the slot cover plate and the slot enclose a narrow gap, the mounting hole is arranged on the slot cover plate and the box body respectively, and the screw rod is connected with the lock screw by penetrating the mounting holes in the slot cover plate and the box body.

[0007] Preferably, the plug is inserted into the slot to form the beam formula structure of the inner shake cover and the box body, and the inner shake cover of the beam formula structure is used for supporting the outer shake cover.

[0008] Compared with the prior art, the beam formula structure plastic shake cover packaging box has the advantages that the plug of the inner shake cover is inserted into the slots of the two box bodies, the inner shake cover and the two box bodies form the beam formula structure, the inner shake cover of the beam formula structure supports the outer shake cover, and the compression resistance and the bending resistance of the shake cover of the packaging box are improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the first shaft side structure schematic view of the utility model;

[0010] Fig. 2 It is the slot cover plate structure schematic view of the utility model;

[0011] Fig. 3 It is the second shaft side structure schematic view of the utility model.

[0012] In the drawing: 1, plug tongue; 2, slot; 3, slot cover plate; 4, mounting hole; 5, counter locking screw; 6, inner rocker cover; 7, box body; 8, outer rocker cover; 9, screw rod. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0014] Please refer to Figs. 1-3 The mold of the ordinary plastic rocker cover packaging box only has tangent line and indentation line, and is formed by using an ordinary cutting and pressing machine. In order to solve the problem that, in the case that the content does not fill the packaging box, the inner rocker cover 6 is suspended and droops at the top end, and a gap is formed between the inner rocker cover 6 and the outer rocker cover 8 after the box is sealed by the adhesive tape, the inner rocker cover 6 does not support the outer rocker cover 8, and the rocker cover is easy to deform and wrinkle during stacking and carrying, the deformation and wrinkle of the rocker cover cause the adhesive tape to loosen and peel off, the deformation of the rocker cover and the loosening and peeling off of the adhesive tape affect the stability of the box structure, and the packaging box is torn and collapsed in serious cases, a beam type structure plastic rocker cover packaging box is provided.

[0015] The plug tongue 1, the slot 2 and the mounting hole 4 assembly are additionally arranged on the mold of the beam type structure plastic rocker cover packaging box, a cutting and pressing equipment that can be heated is used to die press and form the plastic plate, and a plastic box plate blank with the plug tongue 1, the slot 2 and the mounting hole 4 is obtained at one time;

[0016] The slot cover plate 3 is made by stamping or injection molding process, the slot cover plate 3 has the mounting hole 4 on the surface, the slot cover plate 3 can be integrally formed with the screw rod 9, and the counter locking screw 5 is selected from standard fasteners;

[0017] The installation of the slot cover plate 3 leaves a distance of one box plate thickness between the outer edge of the slot cover plate 3 and the indentation line of the outer cover 8. The slot cover plate 3 is placed on the surface of the slot 2. The screw 9 is inserted into the mounting hole 4 from the inside of the box 7. The locking screw 5 is locked from the outside of the box 7. The tongue joint of the box 7 is fixed with existing iron nails and hot melt process.

[0018] When sealing the box, the tongue 1 of the inner flap 6 is inserted into the slot 2, and the inner flap 6 and the two side boxes 7 form a beam structure. The outer flap 8 covers the inner flap 6, and the inner flap 6 supports the outer flap 8, which improves the overall structural stability of the plastic flap box and avoids flap deformation and wrinkles during stacking and handling.

[0019] The above completes a series of operations for the beam-structured plastic flap packaging box. Any content not described in detail in this instruction belongs to the prior art known to those skilled in the art.

[0020] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A beam-type plastic swing-top packaging box, comprising a tongue (1), a slot (2), a slot cover plate (3), a mounting hole (4), a locking screw (5), and a screw rod (9), characterized in that: The tongue (1) is connected to both sides of the inner cover (6). The inner cover (6) is flattened by heating to form the tongue (1). The slot (2) is set on the box (7). The box (7) forms the slot (2) at the corresponding position of the tongue (1) by hot pressing. The plane of the slot (2) is larger than the tongue (1). The slot cover (3) is disposed on the surface of the slot (2), and the slot cover (3) and the slot (2) form a narrow slit. The mounting holes (4) are respectively disposed on the slot cover (3) and the housing (7). The screw (9) passes through the mounting holes (4) in the slot cover (3) and the housing (7) and is connected to the locking screw (5).

2. The beam-type plastic flap packaging box according to claim 1, characterized in that: The tongue (1) is inserted into the slot (2) so that the inner cover (6) and the box (7) form a beam structure, and the inner cover (6) of the beam structure is used to support the outer cover (8).