Packaging box with paperboard lining

Abstract

The utility model relates to the technical field of packing boxes, and provides a packing box with a paperboard lining, which comprises a box body and a zigzag lining, the zigzag lining is sequentially provided with a lower concave part and an upper convex part from left to right, the lower concave parts are arranged on two sides of the zigzag lining, a connecting mechanism is arranged on the side portion of the zigzag lining, and the upper convex part is arranged on the box body. A fixing mechanism is arranged at the bottom of the zigzag lining; and the connecting mechanism comprises two connecting sheets which are fixedly connected with the downward concave parts on the two sides of the zigzag lining respectively. By rotating the positioning pieces and enabling the positioning openings to wrap the surfaces of the positioning protrusions, the upper protruding parts can be fixed at the moment, deformation of the zigzag lining can be avoided, when the zigzag lining is installed, the connecting pieces are inserted into the connecting grooves of the box body, the limiting pieces are inserted into the corresponding limiting grooves and limiting openings, and finally the installation pieces are clamped to the upper protruding parts. Therefore, after the lining is separated from the box body, the two sides of the zigzag lining can be prevented from tilting, and the effect of facilitating operation of a user is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging boxes, and in particular relates to a packaging box with a cardboard lining. Background Art

[0002] A cardboard-lined packaging box is a packaging solution that combines beauty and practicality. It uses cardboard (a thick and strong paper or cardboard) as an internal support or cushioning material to enhance the structural stability of the box and protect the contents from damage. This type of box is widely used in many industries, such as jewelry, cosmetics, electronics, and gift packaging, which require a cardboard-lined packaging box.

[0003] In the prior art, a packaging box with a cardboard lining generally includes a box body, an inner wall of which is provided with a folded lining. Items are generally placed in a groove on the lining, and the thicker edge of the lining provides protection for the items.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned device has the following problems: in the use of the prior art, the lining is directly placed in the box body, and there is a lack of fixing mechanism on both sides of the folding lining. The lining is easily taken out when taking items, which increases the user's operation. Moreover, after the lining is separated from the box body, it is difficult to restore the lining to its original position because the two sides of the folding lining are tilted. Therefore, a packaging box with a cardboard lining is proposed. Utility Model Content

[0005] The utility model provides a packaging box with a cardboard lining, which solves the problem in the related art that the two sides of the folded lining lack fixing mechanisms, the lining is easily taken out when taking out items, and increases the operation of the user.

[0006] The technical solution of the utility model is as follows: a packaging box with a cardboard lining, comprising a box body and a folding lining, wherein the folding lining is composed of a lower concave portion and an upper convex portion from left to right, both sides of the folding lining are lower concave portions, the side of the folding lining is provided with a connecting mechanism, and the bottom of the folding lining is provided with a fixing mechanism;

[0007] The connecting mechanism includes two connecting pieces that are respectively fixedly connected to the lower recessed parts on both sides of the folding lining. The inner walls on both sides of the box body are provided with connecting grooves that form a sliding fit with the connecting pieces. The top sides of the box body are provided with limiting grooves extending into the connecting grooves. The top of the connecting piece is provided with a limiting opening. The inner wall of the limiting opening and the inner wall of the limiting groove are slidably connected with the same limiting piece. After the lining is separated from the box body, the two sides of the folding lining can be prevented from warping, thereby achieving the effect of facilitating operation for the user.

[0008] Preferably, the cross-section of the limiting plate is a T-shaped structure, and a pull-up plate is fixedly connected to the top of the limiting plate. The pull-up plate is an arc-shaped structure. The setting of the pull-up plate can facilitate the user to install and disassemble the position of the limiting plate, which can increase convenience.

[0009] Preferably, one side of the connecting piece is in an arc-shaped structure, and the arc surface of the connecting piece is located in the folded lining. The arc-shaped structure design can facilitate the connecting piece to slide into the connecting groove.

[0010] Preferably, the fixing mechanism includes a plurality of positioning plates, the positioning plates are located below the lower recess, the positioning plates correspond one-to-one to the upper protrusions, a positioning opening with an arc-shaped structure is opened at one end of the positioning plate, a positioning protrusion with a cylindrical structure is fixedly connected below the lower recess adjacent to the positioning plate, the positioning protrusion forms a sliding fit with the inner wall of the positioning opening, the arc surface circumference of the positioning opening is greater than half of the arc surface circumference of the positioning protrusion, and the setting of the positioning protrusion can prevent the two from separating when there is no external force.

[0011] Preferably, a fixing opening corresponding to the positioning piece is opened on the top of the lower recess, and a fixing column is rotatably connected to the inner wall of the fixing opening. The fixing column is fixedly connected to the positioning piece, and the setting of the fixing column can rotate in the inner wall of the fixing opening, which can facilitate the rotation operation of the positioning piece.

[0012] Preferably, an anti-slip sheet is fixedly connected to the top of the fixing column, and the bottom of the anti-slip sheet contacts the top of the lower recess. The provision of the anti-slip sheet can prevent the fixing column from separating from the inner wall of the fixing port.

[0013] Preferably, a mounting piece is provided in the box body, and a mounting opening corresponding to the upper protrusion is opened at one end of the mounting piece, and the inner wall of the mounting opening forms a sliding fit with the upper protrusion. The setting of the mounting piece can increase the stability of the folding lining.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] By rotating the positioning piece and making the positioning opening wrap around the surface of the positioning protrusion, the upper protrusions can be fixed to avoid deformation of the folding lining. When installing it, the connecting piece is inserted into the connecting groove of the box body, the limiting piece is inserted into the corresponding limiting groove and limiting opening, and finally the installation piece is clamped to the upper protrusion. Therefore, after the lining is separated from the box body, the two sides of the folding lining can be prevented from warping, thereby achieving the effect of facilitating user operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1This is a schematic diagram of the three-dimensional structure proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the box structure proposed by the utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the limiting piece proposed in the utility model;

[0022] Figure 6 This is a schematic diagram of the anti-slip sheet structure proposed by the utility model;

[0023] Figure 7 It is a schematic diagram of the prior art structure;

[0024] In the figure: 1. Box body; 2. Folding lining; 3. Concave portion; 4. Convex portion; 5. Connecting piece; 6. Connecting groove; 7. Limiting opening; 8. Limiting groove; 9. Limiting piece; 10. Pull-up piece; 11. Positioning piece; 12. Positioning opening; 13. Positioning protrusion; 14. Fixing opening; 15. Fixing column; 16. Anti-slip piece; 17. Installation piece; 18. Installation opening. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figure 1 - Figure 7 A packaging box with a cardboard lining includes a box body 1 and a folding lining 2. The folding lining 2 has a lower concave portion 3 and an upper convex portion 4 from left to right. Both sides of the folding lining 2 have lower concave portions 3. The side of the folding lining 2 is provided with a connecting mechanism, and the bottom of the folding lining 2 is provided with a fixing mechanism.

[0028] The connecting mechanism includes two connecting pieces 5 that are fixedly connected to the lower recesses 3 on both sides of the folding lining 2. The inner walls on both sides of the box body 1 are provided with connecting grooves 6 that form a sliding fit with the connecting pieces 5. The top sides of the box body 1 are provided with limiting grooves 8 that extend into the connecting grooves 6. The top of the connecting piece 5 is provided with a limiting opening 7, and the inner wall of the limiting opening 7 is slidably connected to the inner wall of the limiting groove 8 by the same limiting piece 9.

[0029] When the folding liner 2 is in the state of being packed up, the folding liner 2 of the present invention is fixed.

[0030] Furthermore, the cross section of the limiting piece 9 is in a T-shaped structure, and a pull-up piece 10 is fixedly connected to the top of the limiting piece 9 , and the pull-up piece 10 is in an arc-shaped structure.

[0031] Specifically, by pulling up the piece 10 , the user can easily install and remove the position of the limiting piece 9 , which increases convenience.

[0032] Furthermore, one side of the connecting piece 5 is in an arc-shaped structure, and the arc surface of the connecting piece 5 is located inside the folded lining 2 .

[0033] Specifically, the arc-shaped structure enables the contact surface between the connecting piece 5 and the inner wall of the box body 1 to be an arc surface, which facilitates the connecting piece 5 to slide into the connecting groove 6 .

[0034] Example 2

[0035] Based on the first embodiment, the present embodiment includes: a fixing mechanism including a plurality of positioning pieces 11, the positioning pieces 11 are located below the lower concave portion 3, the positioning pieces 11 correspond one to one with the upper convex portion 4, one end of the positioning piece 11 is provided with a positioning opening 12 with an arc-shaped structure, and a positioning protrusion 13 with a cylindrical structure is fixedly connected below the lower concave portion 3 adjacent to the positioning piece 11, the positioning protrusion 13 forms a sliding fit with the inner wall of the positioning opening 12, and the arc circumference of the positioning opening 12 is greater than the arc circumference of the positioning protrusion 13. Half as long, a fixing opening 14 corresponding to the positioning piece 11 is opened at the top of the lower recess 3, and a fixing column 15 is rotatably connected to the inner wall of the fixing opening 14. The fixing column 15 is fixedly connected to the positioning piece 11, and the top of the fixing column 15 is fixedly connected to an anti-slip sheet 16. The bottom of the anti-slip sheet 16 contacts the top of the lower recess 3. A mounting piece 17 is provided in the box body 1, and a mounting opening 18 corresponding to the upper convex portion 4 is opened at one end of the mounting piece 17. The inner wall of the mounting opening 18 forms a sliding fit with the upper convex portion 4.

[0036] The technical solution provided by this embodiment is: the positioning protrusion 13 can form a limit with the positioning opening 12, which can prevent the two from separating when there is no external force. During installation, the positioning piece 11 can be directly rotated, and the fixing column 15 can be rotated in the inner wall of the fixing opening 14, which can facilitate the rotation operation of the positioning piece 11. The anti-slip sheet 16 can limit the fixing column 15, which can prevent the fixing column 15 from separating from the inner wall of the fixing opening 14. The installation sheet 17 can increase the limit of the upper protrusion 4 of the folding lining 2, which can increase the stability of the folding lining 2.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A packaging box with a cardboard lining, comprising a box body (1) and a folding lining (2), characterized in that: The folding lining (2) is composed of a lower concave portion (3) and an upper convex portion (4) from left to right, both sides of the folding lining (2) are lower concave portions (3), the side of the folding lining (2) is provided with a connecting mechanism, and the bottom of the folding lining (2) is provided with a fixing mechanism; The connecting mechanism comprises two connecting pieces (5) respectively fixedly connected to the lower recesses (3) on both sides of the folding lining (2); the inner walls on both sides of the box body (1) are provided with connecting grooves (6) that form a sliding fit with the connecting pieces (5); the top of the box body (1) is provided with limiting grooves (8) extending into the connecting grooves (6); the top of the connecting piece (5) is provided with a limiting opening (7); the inner wall of the limiting opening (7) and the inner wall of the limiting groove (8) are slidably connected by a same limiting piece (9).

2. The cardboard-lined packaging box according to claim 1, characterized in that: The cross section of the limiting piece (9) is in a T-shaped structure, and a pull-up piece (10) is fixedly connected to the top of the limiting piece (9), and the pull-up piece (10) is in an arc-shaped structure.

3. The cardboard-lined packaging box according to claim 2, characterized in that: One side of the connecting piece (5) is in an arc-shaped structure, and the arc surface of the connecting piece (5) is located inside the folded lining (2).

4. The cardboard-lined packaging box according to claim 1, characterized in that: The fixing mechanism comprises a plurality of positioning pieces (11), wherein the positioning pieces (11) are located below the lower concave portion (3), and the positioning pieces (11) correspond to the upper convex portion (4) one by one. A positioning opening (12) with an arc-shaped structure is provided at one end of the positioning piece (11), and a positioning protrusion (13) with a cylindrical structure is fixedly connected below the lower concave portion (3) adjacent to the positioning piece (11). The positioning protrusion (13) forms a sliding fit with the inner wall of the positioning opening (12), and the arc surface circumference of the positioning opening (12) is greater than half the arc surface circumference of the positioning protrusion (13).

5. The cardboard-lined packaging box according to claim 4, characterized in that: A fixing opening (14) corresponding to the positioning piece (11) is provided on the top of the lower recess (3); a fixing column (15) is rotatably connected to the inner wall of the fixing opening (14); and the fixing column (15) is fixedly connected to the positioning piece (11).

6. The cardboard-lined packaging box according to claim 5, characterized in that: The top of the fixing column (15) is fixedly connected with an anti-slip sheet (16), and the bottom of the anti-slip sheet (16) is in contact with the top of the lower recess (3).

7. The cardboard-lined packaging box according to claim 1, characterized in that: A mounting piece (17) is provided in the box body (1), and a mounting opening (18) corresponding to the upper convex portion (4) is provided at one end of the mounting piece (17), and the inner wall of the mounting opening (18) forms a sliding fit with the upper convex portion (4).

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