Packaging box with insertion tongue having built-in lock buckle function
By setting up a concave structure and isosceles trapezoidal socket on the cover of the packaging box, a self-locking structure is formed, which solves the problem that the packaging box cannot lock the cover after being loosened during transportation and is disassembled, and achieves better sealing and protection effects .
Patent Information
- Application Number
- CN202420427452.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-06
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-06
AI Technical Summary
The existing packaging boxes are prone to loosening and cracking during transportation, and once they are disassembled, it cannot lock the cover, which affects the placement and protection of items in the later stage.
A packaging box with a locking lock function is designed. By setting a concave structure and an isosceles trapezoidal socket on the cover plate, a self-locking structure is formed to ensure the stable buckle between the plug and the socket and provide a good seal. and protection.
It effectively reduces the looseness and cracking of the packaging box during transportation, ensures that the items do not fall off during transportation, and is convenient to open when needed.
Smart Images
Figure CN222203474U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging boxes, in particular to a packaging box with an inserting tongue having a concealed lock and buckle function. Background Art
[0002] The product packaging box is convenient for the later storage, transportation and sale of the product. The box cover is used to seal the box mouth, and generally includes a top cover and a dustproof rocking wing body. In the prior art, there are various forms of box covers to meet different usage requirements. For example, a plug tongue 5-2 is connected to the top cover, and the plug tongue 5-2 is directly inserted into the gap between the top cover and the box body during packaging. However, this packaging method is not very firm. During the bumpy transportation process, the outer packaging may loosen and crack at any time. To solve this problem, some packaging boxes in the prior art include a main top cover and a secondary top cover in addition to the dustproof rocking wing bodies on both sides. The secondary top cover is folded on the two dustproof rocking wing bodies, and a bonding layer is provided on the secondary top cover to bond the main top cover to the secondary top cover, thereby achieving sealed packaging. However, once this packaging method is opened, consumers can no longer use the box cover to lock the box body, which is not conducive to placing items in the later stage. Summary of the invention
[0003] In order to solve the above problems, the utility model provides a packaging box with an insert tongue having a concealed lock and buckle function, which ensures that the packaging box has a good appearance flatness and is not easy to deform and has good sealing performance.
[0004] The utility model adopts the following technical scheme, a packaging box with a tongue having a concealed lock buckle function, characterized in that it comprises a front side panel 1, a front panel 2, a rear side panel 3, and a back panel 4 which are sequentially connected longitudinally; wherein a left front sealing baffle 1-1 and a right front sealing baffle 1-2 are respectively arranged at both ends of the front side panel 1, and corresponding folds and obtuse-angle protrusions are arranged at the connection parts with the front side panel 1; a hollow area 2-1 is arranged in the middle of the front panel 2 connected to the front side panel 1, and a transparent protective layer is pasted in the area; in addition, Cover plates 5 are symmetrically arranged on the left and right sides of the plate 2. The cover plates 5 on either side include two parts, namely a cover plate body 5-1 connected to the panel 2, and an insert tongue 5-2 arranged in the middle of the outer side of the cover plate body 5-1. The insert tongue 5-2 is a rectangular parallelepiped structure as a whole, and its length accounts for 1 / 3 of the length of the entire cover plate body 5-1. Arc chamfers are arranged at two right angles on its outer side; symmetrical concave structures 5-3 are arranged at both ends of the fold connecting the insert tongue 5-2 and the cover plate body 5-1.
[0005] A rear side plate 3 is arranged between the front panel 2 and the back panel 4 . The shape of the rear side plate 3 is consistent with that of the front side plate 1 , and the arrangement of the components of the rear side plate 3 is symmetrical to that of the front side plate 1 .
[0006] The back panel 4 and the panel 2 are symmetrically arranged with the rear side panel 3 as a reference. The shape and area of the back panel 4 are consistent with those of the panel 2, and cover support plates 6 are arranged on both sides of the back panel 4. An incomplete bending line is arranged at the connection between the cover support plate 6 and the back panel 4. The incomplete bending line refers to a plate body with creases at both ends and a complete plate body in the middle; rectangular indentation areas 6-1 are arranged on the inner sides of both ends of the cover support plate 6, and a number of mutually parallel indentation lines are arranged thereon. The indentation area 6-1 overlaps with the corresponding areas at both ends of the cover plate body 5-1 after the cover support plate 6 is folded along the incomplete bending line, and adhesive is coated on the contact surfaces of the two.
[0007] At the middle position of the incomplete bending line between the cover support plate 6 and the back plate 4, there is a socket 6-2 for inserting the plug tongue 5-2 arranged on the cover plate body 5-1. The socket 6-2 is also arranged in the middle position of the cover support plate 6, and its overall contour is an isosceles trapezoid, wherein the upper base of the isosceles trapezoid crosses the incomplete bending line between the cover support plate 6 and the back plate 4, and is located on the cover support plate 6 as a whole. The overall length of the upper base is less than the length of the plug tongue 5-2, and the length of the lower base is consistent with the length of the plug tongue 5-2; and the lower base of the isosceles trapezoid coincides with the middle part of the incomplete bending line; moving from the two ends of the lower base of the socket 6-2 along the hypotenuse to the upper base, the overall length of the socket 6-2 gradually decreases; after the plug tongue 5-2 is inserted into the socket 6-2, the concave part of the root of the plug tongue 5-2 is stuck on the hypotenuse on both sides of the socket 6-2, and the plug tongue 5-2 and the socket 6-2 form a self-locking structure.
[0008] On the outer side of the back panel 4, there is also an adhesive panel 7 which is in contact with the front side panel 1, with a crease line between the two and a plurality of parallel indentation lines on its surface. The adhesive panel 7 overlaps with the front side panel 1 after being folded along the crease line, and adhesive is coated on the contact surfaces of the two.
[0009] Preferably, at both ends of the cover plate body 5 - 1 , there are respectively provided geometric adhesive blocks 5 - 4 with tear lines set between the cover plate body 5 - 1 , and the two geometric adhesive blocks 5 - 4 overlap with the indentation areas 6 - 1 set on the inner sides of both ends of the cover plate support plate 6 .
[0010] Preferably, the depth dimension of the concave structure 5 - 3 on either side is 1 / 2 of the length difference between the upper bottom edge and the lower bottom edge of the socket 6 - 2.
[0011] Preferably, the concave structure 5-3 adopts a rectangular or semicircular arc structure.
[0012] Preferably, the ratio of the thickness of the concave structure 5 - 3 to the thickness of the cover support plate 6 of the packaging box is 1.1-1.2:1. Beneficial Effects
[0013] In the utility model, an improvement on the hidden lock snap function of an inserting tongue 5-2 in a packaging paper box is realized, an inner concave structure 5-3 with a locking function at the root is arranged on the original packaging box cover 5, and a socket 6-2 with an isosceles trapezoidal outline is arranged on the cover support plate 6, and the corresponding proportions and relationships between the sizes of various parts of the socket 6-2 and the inserting tongue 5-2 are defined in detail. After the packaging box is packaged and the items are loaded, the inserting tongue 5-2 and the socket 6-2 can form a stable self-locking structure, and the cover 5 and the cover support plate 6 can be firmly buckled together, which plays a better role in protection and sealing, and can greatly reduce the loosening and cracking of the packaging box and the falling off of the packaged items during transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the unfolding of the packaging box described in Example 1.
[0015] Figure 2 Schematic diagram of the closing process of the packaging box.
[0016] Figure 3 It is a partial top view of the plug tongue and the socket in a closed state.
[0017] Figure 4 It is a partial front view of the plug tongue and the socket in the closed state.
[0018] Figure 5 It is a schematic diagram of the unfolding of the packaging box described in Example 2.
[0019] Figure 6 yes Figure 5 A partial enlarged view of .
[0020] In the figure: front side plate 1, panel 2, rear side plate 3, and back plate 4, left front sealing baffle 1-1, right front sealing baffle 1-2, hollow area 2-1, cover plate 5, cover plate body 5-1, plug tongue 5-2, concave structure 5-3, adhesive block 5-4, cover plate support plate 6, indentation area 6-1, socket 6-2, adhesive plate 7. DETAILED DESCRIPTION
[0021] The following is a further description of a packaging box with a plug tongue having a hidden lock and buckle function in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. The accompanying drawings are all in a very simplified form, using non-precise ratios, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. Example 1
[0022] like Figure 1-4 As shown, the packaging box with a tongue having a concealed lock snap function described in this embodiment comprises a front side panel 1, a panel 2, a rear side panel 3, and a back panel 4 which are connected in sequence longitudinally; wherein, a left front sealing baffle 1-1 and a right front sealing baffle 1-2 are respectively arranged at both ends of the front side panel 1, and corresponding folds and obtuse-angle protrusions are arranged at the connection parts with the front side panel 1; a hollow area 2-1 is arranged in the middle of the panel 2 connected to the front side panel 1, and a transparent protective layer is pasted in the area; in addition, cover panels 5 are symmetrically arranged on the left and right sides of the panel 2, and the cover panel 5 on either side comprises two parts, namely, In particular, there is a cover plate body 5-1 connected to the panel 2, and a tongue 5-2 arranged in the middle of the outer side of the cover plate body 5-1. The tongue 5-2 is a rectangular parallelepiped structure as a whole, and its length accounts for 1 / 3 of the length of the entire cover plate body 5-1. Arc chamfers are arranged at two right angles on its outer side; symmetrical concave structures 5-3 are arranged at both ends of the fold connecting the tongue 5-2 and the cover plate body 5-1. The concave structure 5-3 adopts a rectangular structure, and the depth dimension of the concave structure 5-3 on either side is 1 / 2 of the length difference between the upper bottom edge and the lower bottom edge of the socket 6-2.
[0023] A rear side panel 3 is arranged between the panel 2 and the back panel 4. The shape of the rear side panel 3 is consistent with the front side panel 1, and the arrangement of the components is symmetrical with the front side panel 1; the back panel 4 and the panel 2 are symmetrically arranged with the rear side panel 3 as a reference. The shape and area of the back panel 4 are consistent with the panel 2, and cover support plates 6 are arranged on both sides of the back panel 4. An incomplete bending line is arranged at the connection between the cover support plate 6 and the back panel 4. The incomplete bending line refers to a plate body with creases at both ends and a complete plate body in the middle; rectangular indentation areas 6-1 are arranged on the inner sides of both ends of the cover support plate 6, and a number of mutually parallel indentation lines are arranged thereon. The indentation area 6-1 overlaps with the corresponding areas at both ends of the cover plate body 5-1 after the cover support plate 6 is folded along the incomplete bending line, and adhesive is coated on the contact surfaces of the two.
[0024] In the middle of the incomplete bending line between the cover support plate 6 and the back plate 4, a socket 6-2 is provided for inserting the plug tongue 5-2 arranged on the cover plate body 5-1. The socket 6-2 is also arranged in the middle of the cover support plate 6, and its overall contour is an isosceles trapezoid, wherein the upper bottom side of the isosceles trapezoid crosses the incomplete bending line between the cover support plate 6 and the back plate 4, and is located on the cover support plate 6 as a whole. The overall length of the upper bottom side is less than the length of the plug tongue 5-2, and the length of the lower bottom side is consistent with the length of the plug tongue 5-2; and the lower bottom side of the isosceles trapezoid is the same as the incomplete bending line. The middle parts of the fold lines overlap; moving from the two ends of the lower bottom edge of the socket 6-2 along the oblique edges to the upper bottom edge, the overall length of the socket 6-2 gradually decreases; after the tongue 5-2 is inserted into the socket 6-2, the concave part of the root of the tongue 5-2 is stuck on the oblique edges on both sides of the socket 6-2, and the tongue 5-2 and the socket 6-2 form a self-locking structure; on the outer side of the back plate 4, an adhesive plate 7 is also provided to fit the front side plate 1, a fold line is provided between the two, and a plurality of mutually parallel indentation lines are provided on its surface, which overlap with the front side plate 1 after folding along the fold line, and an adhesive is coated on the contact surfaces of the two.
[0025] The front side plate 1, the front panel 2, the rear side plate 3, and the back plate 4 are bent and glued and formed in sequence along the crease line, and finally sealed and packaged. The cover support plate 6 is bent inward, and its two sides move along the creases at both ends of the incomplete bending line, and the middle moves along the contour of the above-mentioned isosceles trapezoidal socket 6-2. After bending 90°, the isosceles trapezoidal contour part of the socket 6-2 protrudes out of the creases at both ends and the cover support plate 6 body as a whole; the cover plate 5 is bent inward along its bending line After folding, the tongue 5-2 arranged on it is bent and inserted into the socket 6-2 below. Since the length of the upper bottom edge of the socket 6-2 is less than the length of the tongue 5-2, and the length of the lower bottom edge is the same as the length of the tongue 5-2, when the tongue 5-2 is inserted into the socket 6-2, its two ends can only be inserted in contact with the two ends of the lower bottom edge of the socket 6-2. After the tongue 5-2 is fully inserted, the concave part of its root is stuck on the oblique edges on both sides of the socket 6-2.
[0026] When in use, the packaging box is filled with articles. In a normal transportation or carrying posture, the weight of the articles acts on the front panel 2 or the back panel 4. When acting on the front panel 2, the front panel 2 pulls the cover plate 5 and the plug tongue 5-2 thereon away from the back panel 4, and the concave portion of the root of the plug tongue 5-2 slides along the oblique edge of the socket 6-2 to the upper bottom edge, so that the plug tongue 5-2 is in close contact with the upper bottom edge of the socket 6-2 which is shorter than its length, forming a self-locking structure; conversely, when the article acts on the back panel 4, the back panel 4 pulls the cover support plate 6, so that the plug tongue 5-2 is also in close contact with the upper bottom edge of the socket 6-2 which is shorter than its length, forming a self-locking structure; in this state, unless the concave portion of the root of the plug tongue 5-2 is destroyed, the plug tongue 5-2 cannot be detached from the upper bottom edge of the socket 6-2 which is shorter than itself, thereby ensuring that the packaging box remains locked during transportation to prevent the articles inside from falling off.
[0027] When the packaging box needs to be opened, just bring the front panel 2 and the back panel 4 of the packaging box close together, and the concave part of the root of the tongue 5-2 will naturally slide from the upper bottom edge to the lower bottom edge of the socket 6-2. The lower bottom edge is the same length as the tongue 5-2, so it can be easily removed from the socket 6-2. Example 2
[0028] like Figure 5 , 6 As shown, the packaging box described in this embodiment has a tongue with a hidden lock and snap function, and its structure is basically the same as that described in Example 1, with the difference that: at both ends of the cover plate body 5-1, there are respectively provided with geometric adhesive blocks 5-4 with easy tear lines set between the cover plate body 5-1, and these two geometric adhesive blocks 5-4 overlap with the indentation areas 6-1 set on the inner sides of both ends of the cover support plate 6; the ratio of the thickness dimension of the concave structure 5-3 to the thickness dimension of the cover support plate 6 of the packaging box is 1.1:1.
Claims
1. A packaging box with a tongue having a hidden lock and buckle function, characterized in that: The invention comprises a front side panel (1), a front panel (2), a rear side panel (3), and a back panel (4) which are connected in sequence longitudinally; wherein a left front sealing baffle (1-1) and a right front sealing baffle (1-2) are respectively arranged at both ends of the front side panel (1), and corresponding folds and obtuse protrusions are arranged at the connection parts with the front side panel (1); a hollow area (2-1) is arranged in the middle of the front panel (2) connected to the front side panel (1), and a transparent protective layer is pasted in the area; in addition, cover plates (5-1) are symmetrically arranged on the left and right sides of the front panel (2); ), the cover plate (5) on either side comprises two parts, namely a cover plate body (5-1) connected to the panel (2), and an insert tongue (5-2) arranged at the middle of the outer side of the cover plate body (5-1); the insert tongue (5-2) is a rectangular parallelepiped structure as a whole, and its length accounts for 1 / 3 of the length of the entire cover plate body (5-1), and arc chamfers are arranged at two right angles on its outer side; symmetrical concave structures (5-3) are arranged at both ends of the fold connecting the insert tongue (5-2) and the cover plate body (5-1); A rear side panel (3) is arranged between the front panel (2) and the back panel (4); the shape of the rear side panel (3) is consistent with that of the front side panel (1), and the arrangement of the components is symmetrical with that of the front side panel (1); The back panel (4) and the face panel (2) are symmetrically arranged with the rear side panel (3) as a reference, the shape and area of the back panel (4) being consistent with those of the face panel (2), and cover support plates (6) being arranged on both sides of the back panel (4), and an incomplete bending line being arranged at the connection between the cover support plate (6) and the back panel (4), wherein the incomplete bending line refers to a plate body having folds at both ends and a complete plate body in the middle; rectangular indentation areas (6-1) are arranged on the inner sides of both ends of the cover support plate (6), and a plurality of mutually parallel indentation lines are arranged thereon, and the indentation areas (6-1) overlap with corresponding areas at both ends of the cover plate body (5-1) after the cover support plate (6) is folded along the incomplete bending line, and an adhesive is applied to the contact surfaces of the two; A socket (6-2) is provided at the middle position of the incomplete bending line between the cover support plate (6) and the back plate (4) for inserting a plug tongue (5-2) arranged on the cover plate body (5-1), and the socket (6-2) is also arranged at the middle position of the cover support plate (6), and its overall profile is an isosceles trapezoid, wherein the upper bottom edge of the isosceles trapezoid crosses the incomplete bending line between the cover support plate (6) and the back plate (4), and is located on the cover support plate (6) as a whole, and the overall length of the upper bottom edge is less than the length of the plug tongue. The length of the lower base is consistent with the length of the tongue (5-2); the lower base of the isosceles trapezoid coincides with the middle part of the incomplete bending line; moving from the two ends of the lower base of the socket (6-2) along the oblique side to the upper base, the overall length of the socket (6-2) gradually decreases; after the tongue (5-2) is inserted into the socket (6-2), the concave part of the root of the tongue (5-2) is stuck on the oblique sides on both sides of the socket (6-2), and the tongue (5-2) and the socket (6-2) form a self-locking structure; An adhesive plate (7) is also provided on the outer side of the back plate (4) and is bonded to the front side plate (1). A crease line is provided between the two, and a plurality of mutually parallel indentation lines are provided on the surface of the adhesive plate. The adhesive plate (7) overlaps with the front side plate (1) after being folded along the crease line, and adhesive is coated on the contact surfaces of the two.
2. A packaging box with a tongue having a hidden lock and buckle function according to claim 1, characterized in that: Geometric adhesive blocks (5-4) with tear lines arranged between the cover plate body (5-1) are respectively provided at both ends of the cover plate body (5-1), and the two geometric adhesive blocks (5-4) overlap with indentation areas (6-1) arranged on the inner sides of both ends of the cover plate support plate (6).
3. The packaging box with a tongue having a hidden lock and buckle function according to claim 1, characterized in that: The depth dimension of the concave structure (5-3) on either side is 1 / 2 of the length difference between the upper bottom edge and the lower bottom edge of the socket (6-2).
4. A packaging box with a plug tongue having a hidden lock and buckle function according to any one of claims 1 to 3, characterized in that: The concave structure (5-3) is a rectangular or semicircular arc structure.
5. A packaging box with a plug tongue having a hidden lock and buckle function according to any one of claims 1 to 3, characterized in that: The ratio of the thickness of the inner concave structure (5-3) to the thickness of the cover support plate (6) of the packaging box is 1.1-1.2:1.