Packaging box internally provided with adjustable paper-plastic structure

Abstract

The utility model provides a packaging box internally provided with an adjustable paper-plastic structure, which comprises an outer box, and further comprises the adjustable paper-plastic structure and a cover plate structure which are arranged in the outer box, the adjustable paper-plastic structure comprises four threaded guide rods, a support frame and a lower paper-plastic layer. The threaded guide rods are evenly distributed at the four corners of the bottom of an inner cavity of the outer box respectively. A connecting rod is arranged between the two opposite threaded guide rods in the width direction of the inner cavity of the outer box in a crossing mode. A limiting nut seat is arranged on the lower portion of the position, corresponding to the connecting rod, of the threaded guide rod. The two opposite sides of the support frame in the width direction are in contact connection with the connecting rods through protruding blocks. A suspension boss matched with the bracket frame is formed at the side edge of the upper surface of the lower paper-plastic layer; the cover plate structure comprises a cover plate and an upper paper-plastic layer. And on the basis that the good anti-seismic buffering function is ensured, adaptive adjustment can be conducted according to objects of different sizes, and the adaptability is directly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a packaging box with an adjustable paper-plastic structure inside. Background Art

[0002] China Authorization Announcement No. CN 221025299 U, the authorization announcement date is May 28, 2024, which discloses a packaging box liner and a packaging box, the packaging box liner includes a supporting member, a first limiting member and a second limiting member, both of which are made of paper, and the two limiting members are respectively arranged at the first end and the opposite second end of the supporting member; the first limiting member includes a first body and at least two first limiting parts, and the at least two first limiting parts are folded along the folding line between the first body and respectively abut against the first end of the supporting member and the outer side wall adjacent to the first end; the second limiting member includes a second body and at least two second limiting parts, and the at least two second limiting parts are folded along the folding line between the second body and respectively abut against the second end of the supporting member and the outer side wall adjacent to the second end. It can be seen that the packaging box liner is a foldable structure, which can be unfolded for storage and transportation, saving storage space and transportation costs, and folded into a required structure when in use to achieve the function of buffer protection. The defects of the prior art are: it cannot be adaptively adjusted according to the size of the items to be loaded, and the applicability is low. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a packaging box with an adjustable paper-plastic structure inside, which can ensure good shock-resistant and buffering functions while being adaptable to items of different sizes, thereby directly improving applicability.

[0004] The utility model provides a packing box with an adjustable paper-plastic structure inside, comprising an outer box, and also comprising an adjustable paper-plastic structure and a cover plate structure arranged in the outer box; the adjustable paper-plastic structure comprises four threaded guide rods, a bracket frame, and a lower paper-plastic layer, the threaded guide rods being evenly arranged at the four corners of the bottom of the inner cavity of the outer box respectively; a connecting rod is arranged across two threaded guide rods opposite to each other in the width direction of the inner cavity of the outer box; a limited position nut seat is arranged at the lower part of the threaded guide rod corresponding to the connecting rod; the opposite two sides in the width direction of the bracket frame are in contact and connected with the connecting rod through a convex block; a hanging boss matched with the bracket frame is formed at the side edge of the upper surface of the lower paper-plastic layer; the cover plate structure comprises a cover plate and an upper paper-plastic layer, the lower surface of the cover plate is provided with a mounting convex groove matched with the upper paper-plastic layer, and the upper paper-plastic layer is correspondingly embedded and installed in the mounting convex groove; through holes for the threaded guide rods to penetrate are formed on the four sides of the cover plate; and limited position nut seats are arranged at the upper surface of the cover plate and at the positions corresponding to each of the through holes.

[0005] Preferably, a positioning pin is provided on the upper surface of the connecting rod, and the protrusion is provided with a positioning pin through hole for the positioning pin to pass through.

[0006] Preferably, a plurality of first engaging grooves matching the shape of the product are formed on the upper surface of the lower paper-plastic layer.

[0007] Preferably, a plurality of second engaging grooves matching the shape of the product are formed on the lower surface of the upper paper-plastic layer.

[0008] Preferably, the inner wall of the outer box is coated with a waterproof coating.

[0009] The beneficial effects of the utility model are as follows: the relative height of the bracket frame on the threaded guide rod can be adjusted at will, and then the bracket frame is supported and limited by the limiting nut seat, the lower paper-plastic layer is suspended and placed on the bracket frame, and the product is placed on the lower paper-plastic layer accordingly, and the cover plate structure is correspondingly covered on top of the product, ensuring that it has good shock-resistant and buffering functions, and can be adaptively adjusted for items of different sizes, directly improving applicability, and can hold a variety of products of different sizes without changing the packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional view (top view) of the present invention.

[0011] Figure 2 This is a three-dimensional view of the utility model (looking up, omitting the bottom of the box).

[0012] The reference numerals are: outer box 10, threaded guide rod 11, connecting rod 12, positioning pin 13, protrusion 14, bracket frame 15, lower paper-plastic layer 16, cover plate 17, upper paper-plastic layer 19, mounting convex groove 18, first fitting groove 22, limiting nut seat 20, through hole 21, second fitting groove 23, hanging boss 24. DETAILED DESCRIPTION

[0013] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods and drawings.

[0014] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] Please refer to Figure 1-2As shown, the utility model provides a packaging box with an adjustable paper-plastic structure inside, including an outer box 10, and also including an adjustable paper-plastic structure and a cover plate structure arranged inside the outer box 10;

[0016] The adjustable paper-plastic structure includes four threaded guide rods 11, a bracket frame 15, and a lower paper-plastic layer 16. The threaded guide rods 11 are evenly arranged at the four corners of the bottom of the inner cavity of the outer box 10; a connecting rod 12 is arranged across the two threaded guide rods 11 opposite to each other in the width direction of the inner cavity of the outer box 10; a limited nut seat 20 is arranged at the lower part of the position corresponding to the threaded guide rod 11 and the connecting rod 12; the opposite sides of the bracket frame 15 in the width direction are in contact and connected with the connecting rod 12 through the protrusions 14; A hanging boss 24 is formed at the side edge of the upper surface of the lower paper-plastic layer 16, which matches the bracket frame 15; the cover plate structure includes a cover plate 17 and an upper paper-plastic layer 19, and the lower surface of the cover plate 17 is provided with a mounting convex groove 18 matching the upper paper-plastic layer 19, and the upper paper-plastic layer 19 is correspondingly mounted in the mounting convex groove 18; through holes 21 for the threaded guide rod 11 to pass through are formed on the four sides of the cover plate 17; limited nut seats 20 are provided at the positions corresponding to the through holes 21 on the upper surface of the cover plate 17. A positioning pin 13 is provided on the upper surface of the connecting rod 12, and a positioning pin through hole for the positioning pin 13 to pass through is provided on the protrusion 14, so that the bracket frame 15 can be limitedly set on the connecting rod 12 to avoid shaking.

[0017] The upper surface of the lower paper-plastic layer 16 is formed with a plurality of first engaging grooves 22 matching the shape of the product. The lower surface of the upper paper-plastic layer 19 is formed with a plurality of second engaging grooves 23 matching the shape of the product. Through the cooperation of the first engaging grooves 22 and the second engaging grooves 23, the product can be stably placed with high safety.

[0018] The inner wall of the outer box 10 is coated with a waterproof coating, so that the inner cavity of the packaging box has a waterproof function and the service life is improved.

[0019] In this embodiment, the relative height of the bracket frame on the threaded guide rod can be adjusted at will, and then the bracket frame is supported and limited by the limiting nut seat, the lower paper-plastic layer is suspended and placed on the bracket frame, the product is placed on the lower paper-plastic layer accordingly, the cover plate structure is correspondingly covered on top of the product, and then the cover plate 17 is limited by the limiting nut seat, thereby ensuring that it has good shock-resistant and buffering functions, and can be adaptively adjusted for items of different sizes, directly improving applicability, and can place a variety of products of different sizes without changing the packaging.

[0020] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A packaging box with an adjustable paper-plastic structure inside, comprising an outer box (10), characterized in that: It also includes an adjustable paper-plastic structure and a cover plate structure arranged in the outer box (10); The adjustable paper-plastic structure comprises four threaded guide rods (11), a support frame (15), and a lower paper-plastic layer (16); the threaded guide rods (11) are evenly arranged at the four corners of the bottom of the inner cavity of the outer box (10); a connecting rod (12) is arranged across two threaded guide rods (11) opposite to each other in the width direction of the inner cavity of the outer box (10); a limited nut seat (20) is arranged at the lower part of the position corresponding to the threaded guide rod (11) and the connecting rod (12); the opposite sides of the support frame (15) in the width direction are contacted and connected with the connecting rod (12) through protrusions (14); a hanging boss (24) cooperating with the support frame (15) is formed at the side edge of the upper surface of the lower paper-plastic layer (16); The cover plate structure comprises a cover plate (17) and an upper paper-plastic layer (19); a mounting convex groove (18) matching the upper paper-plastic layer (19) is provided on the lower surface of the cover plate (17); the upper paper-plastic layer (19) is correspondingly mounted in the mounting convex groove (18); through holes (21) for the threaded guide rod (11) to pass through are formed on four sides of the cover plate (17); and limited nut seats (20) are provided at positions on the upper surface of the cover plate (17) corresponding to each of the through holes (21).

2. The packaging box with an adjustable paper-plastic structure inside according to claim 1, characterized in that: The upper surface of the connecting rod (12) is provided with a positioning pin (13), and the protrusion (14) is provided with a positioning pin through hole for the positioning pin (13) to pass through.

3. The packaging box with an adjustable paper-plastic structure inside according to claim 1, characterized in that: The upper surface of the lower paper-plastic layer (16) is formed with a plurality of first engaging grooves (22) matching the shape of the product.

4. The packaging box with an adjustable paper-plastic structure inside according to claim 1, characterized in that: The lower surface of the upper paper-plastic layer (19) is formed with a plurality of second engaging grooves (23) matching the shape of the product.

5. The packaging box with an adjustable paper-plastic structure inside according to claim 1, characterized in that: The inner wall of the outer box (10) is coated with a waterproof coating.

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