A tape-free self-locking structure and packaging box

Abstract

This utility model discloses a tape-free self-locking structure and packaging box, relating to the field of packaging box technology. The tape-free self-locking structure and packaging box include: a plug portion fixedly connected to a first flap; and a socket portion disposed on the surface of a second flap. When the first flap and the second flap are flipped to the closed state at the open position, the plug portion can be inserted into the socket portion, and the projection of the inserted portion of the plug portion and the second flap along the normal direction of the first flap or the normal direction of the second flap overlaps. The flipping axis of the fixed end of the first flap and the flipping axis of the fixed end of the second flap are not collinear. This tape-free self-locking structure and packaging box, by providing the plug portion and the socket portion, achieves mutual locking of the two sets of flaps, thus achieving the sealing and locking of the packaging box. Furthermore, no additional tools are needed when unpacking, preventing scratches on the contents of the box.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and more specifically, to a tape-free self-locking structure. Furthermore, this utility model also relates to a packaging box including the aforementioned tape-free self-locking structure. Background Technology

[0002] Existing corrugated packaging structures only have the function of packaging. During transportation, they are prone to loosening and spillage. The above problems are often solved by sealing with tape, but tape sealing causes problems such as large workload, environmental protection and additional costs.

[0003] Moreover, when unpacking the box, a knife is needed to cut the tape. If the operation is not done correctly, the items inside the box may be scratched, resulting in some economic loss.

[0004] In summary, how to solve the problems of using tape to seal packaging boxes being environmentally unfriendly, labor-intensive, and requiring additional costs, and the need to use a knife to cut the tape when opening the box, which poses a risk of damaging the contents, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a tape-free self-locking structure. By setting a plug and a socket on two sets of non-collinear flipping covers, and ensuring that when the plug is inserted into the socket, the plug and the flipping cover with the socket mutually inhibit each other from flipping, the two sets of flipping covers are mutually locked, that is, the packaging box is closed and locked. When unpacking, the packaging box can be unpacked simply by pulling out the plug in the insertion direction, without the need for additional tools, thus avoiding scratches on the contents of the box.

[0006] Another objective of this utility model is to provide a packaging box that includes the above-mentioned tape-free self-locking structure, has the same technical features, and can solve the same technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A tape-free self-locking structure is disposed at the opening of a packaging box, wherein the opening of the packaging box is provided with at least a first flap and a second flap, and the tape-free self-locking structure includes:

[0009] The plug portion is fixedly connected to the first hinged cover;

[0010] The plug portion is disposed on the surface of the second flap. When the first flap and the second flap are flipped to the closed state of the opening position, the plug portion can be inserted into the plug portion, and there is an overlapping area between the inserted portion of the plug portion and the projection of the second flap along the normal direction of the first flap or the normal direction of the second flap.

[0011] The flipping axis of the fixed end of the first flap and the flipping axis of the fixed end of the second flap are not collinear.

[0012] Preferably, the surface of the first flap is provided with an auxiliary pressure line for bending the first flap at the auxiliary pressure line;

[0013] The auxiliary pressure wire is perpendicular to the insertion direction of the plug into the socket.

[0014] Preferably, the first flap and the second flap are arranged adjacent to each other, and the flipping axis of the first flap is perpendicular to the flipping axis of the second flap;

[0015] The first hinged cover has a plug portion on both sides of its free end, and the plug portions on both sides of the first hinged cover are respectively inserted into the socket portions of different second hinged covers.

[0016] Preferably, the width of the insertion portion near the first hinged cover flip axis is greater than the width of the other end.

[0017] Preferably, the insertion end of the plug portion has a first bevel, which makes the width of the insertion end of the plug portion smaller than the width of the root portion.

[0018] Preferably, a separation groove is provided on the root side of the plug portion, and the separation groove forms an acute angle with the flipping axis of the first flap;

[0019] The side of the socket corresponding to the separation groove is provided with a second oblique edge. When the plug is inserted into the socket, the second oblique edge is inserted into the separation groove.

[0020] Preferably, a first inclined edge is provided on the insertion end side of one side of the plug portion, and an inclined separation groove is provided on the root side of the other side of the plug portion. Both the first inclined edge and the separation groove have an acute angle between them and the flipping axis of the first flap.

[0021] A second bevel is provided on the side of the socket corresponding to the separation groove. When the plug is inserted into the socket, the second bevel is inserted into the separation groove.

[0022] Preferably, a pressure cap is provided at the middle position of the free end of the first hinged cover, and when the plug is inserted into the socket, the pressure cap covers the surface of the second hinged cover.

[0023] A packaging box comprising the tape-free self-locking structure described in any one of the above, the first flap, and the second flap.

[0024] The tape-free self-locking structure provided by this utility model has at least the following advantages compared with the prior art:

[0025] By setting a plug and a socket on two sets of flaps with non-collinear flipping axes respectively, the plug can be inserted into the socket when the packaging box is closed. The inserted part of the plug and the projection of the flap where the socket is located overlap in any flipping direction of the flaps. That is, when the plug is inserted into the socket, the plug and the flap where the socket is located lock each other, thus locking the two sets of flaps of the packaging box.

[0026] The packaging box provided by this utility model includes the above-mentioned tape-free self-locking structure and has the same beneficial effects. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 A schematic diagram of the packaging box provided by this utility model;

[0029] Figure 2 This is a top view of the packaged box provided by this utility model after it has been sealed.

[0030] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 This is a schematic diagram of the plug portion of the present invention before it is inserted into the socket portion;

[0032] Figure 5 A schematic diagram of the structure of the packaging box after the second flap is closed according to this utility model;

[0033] Figure 6 A schematic diagram of the packaging box when the plug part is inserted into the socket part provided by this utility model;

[0034] Figure 5The middle arrow indicates the direction in which the second flap flips.

[0035] Figure 6 The middle arrow indicates the direction of insertion of the plug.

[0036] In the picture:

[0037] 1. First hinged cover; 11. Plug part; 111. First beveled edge; 12. Auxiliary pressure wire; 13. Pressure cover part; 14. Separation groove;

[0038] 2. Second hinged cover; 21. Insertion port; 211. Second bevel. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] The core of this utility model is to provide a tape-free self-locking structure. By setting a plug and a socket on two sets of non-collinear flipping covers, and ensuring that when the plug is inserted into the socket, the plug and the flipping cover with the socket mutually inhibit each other from flipping, the two sets of flipping covers are mutually locked, thus achieving the sealing and locking of the packaging box. When unpacking, the packaging box can be unpacked simply by pulling out the plug in the insertion direction, without the need for additional tools, thus avoiding scratches to the contents of the box.

[0041] Another core aspect of this utility model is to provide a packaging box that includes the above-mentioned tape-free self-locking structure, which has the same technical features and can solve the same technical problems.

[0042] Please refer to Figure 1 and Figure 2 A tape-free self-locking structure is disposed at the opening of a packaging box, and the opening of the packaging box is provided with at least a first flap 1 and a second flap 2. The tape-free self-locking structure includes:

[0043] The plug portion 11 is fixedly connected to the first swing cover 1;

[0044] The socket 21 is disposed on the surface of the second flap 2. When the first flap 1 and the second flap 2 are flipped to the open position and closed, the plug 11 can be inserted into the socket 21. The inserted part of the plug 11 and the projection of the second flap 2 along the normal direction of the first flap 1 or the normal direction of the second flap 2 have an overlapping area.

[0045] The flipping axis of the fixed end of the first flap 1 and the flipping axis of the fixed end of the second flap 2 are not collinear.

[0046] like Figure 1 and Figure 2 As shown, two sets of hinged covers with non-collinear flip axes are selected, each equipped with a plug portion 11 and a socket portion 21. The plug portion 11 is fixedly connected to the first hinged cover 1, preferably located at the free end of the first hinged cover 1, and the socket portion 21 is located on the surface of the second hinged cover 2. Figure 2 As shown, when the opening of the packaging box is closed, the plug part 11 is inserted into the socket part 21, and the inserted part of the plug part 11 and the projection of the second flap 2 along the flipping direction of the first flap 1 or the second flap 2 have overlapping areas. That is, when the first flap 1 and / or the second flap 2 have a flipping tendency, the overlapping area of ​​the inserted part of the plug part 11 and the second flap 2 will restrict the flipping of the first flap 1 and / or the second flap 2, thus realizing the interlocking of the first flap 1 and the second flap 2, realizing the self-locking of the opening of the packaging box, and avoiding the use of tape.

[0047] When unpacking the box, simply pull the plug part 11 out of the socket part 21 in the opposite direction of insertion to release the interlock between the plug part 11 and the second flap 2, thus unsealing the opening of the box and avoiding damage to the contents of the box caused by using additional tools.

[0048] In some embodiments, the surface of the first flap 1 is provided with an auxiliary pressure line 12 for bending the first flap 1 at the auxiliary pressure line 12;

[0049] The auxiliary pressure wire 12 is perpendicular to the insertion direction of the plug part 11 into the socket part 21.

[0050] like Figure 5 and Figure 6 As shown, by providing an auxiliary pressure line 12 perpendicular to the insertion direction of the plug part 11 on the first flap 1, the first flap 1 can be flipped at the position of the auxiliary pressure line 12 when closed, thereby causing the plug part 11 to be retracted and avoided, thus facilitating the insertion of the socket part 21, thereby reducing the assembly difficulty of the plug part 11 and the socket part 21.

[0051] In some embodiments, the first flap 1 and the second flap 2 are arranged adjacent to each other, and the flipping axis of the first flap 1 is perpendicular to the flipping axis of the second flap 2.

[0052] Both sides of the free end of the first flap 1 are provided with plug portions 11, and the plug portions 11 on both sides of the first flap 1 are respectively connected to the socket portions 21 of different second flaps 2.

[0053] like Figure 2As shown, the opening of the packaging box is provided with two sets of first flaps 1 and two sets of second flaps 2. The first flaps 1 are outer flaps, and the second flaps 2 are inner flaps. The first flaps 1 and the second flaps 2 are arranged in a cross pattern. The flipping axes of the first flaps 1 and the second flaps 2 are perpendicular. Plugs 11 are provided on both sides of the free end of the first flaps 1. When the opening is closed, the two plugs 11 on the same first flaps 1 are respectively plugged into the sockets 21 of different second flaps 2, thereby realizing the interlocking of one set of first flaps 1 and two sets of second flaps 2.

[0054] In some embodiments, the width of the insertion portion 21 at one end near the flip axis of the first hinged cover 1 is greater than the width at the other end.

[0055] like Figure 3 and Figure 4 As shown, the width of the end of the socket 21 near the flip axis of the first flap 1 is greater than the width of the other end, which makes it easier for the plug 11 to be aligned with the socket 21 and inserted. It also increases the overlap area between the inserted part of the plug 11 and the second flap 2 after insertion, that is, increases the frictional force when the inserted part moves relative to the second flap 2, thereby increasing the stability of the interlock between the first flap 1 and the second flap 2.

[0056] In some embodiments, the insertion end side of the plug portion 11 is provided with a first inclined edge 111, which is used to make the insertion end width of the plug portion 11 smaller than the root width.

[0057] like Figure 3 and Figure 4 As shown, by providing a first bevel 111 at the insertion end of the plug portion 11, the width of the insertion end of the plug portion 11 is smaller than the width of the root portion, so that the plug portion 11 can be aligned with the socket portion 21 for insertion, reducing the assembly difficulty of the first flap 1 and the second flap 2, and facilitating the quick sealing of the packaging box.

[0058] In some embodiments, a separation groove 14 is provided on the root side of the plug portion 11, and the separation groove 14 has an acute angle with the flipping axis of the first flap 1.

[0059] The side of the socket 21 corresponding to the separation groove 14 is provided with a second inclined edge 211. When the plug 11 is inserted into the socket 21, the second inclined edge 211 is inserted into the separation groove 14.

[0060] like Figure 3 and Figure 4 As shown, by providing an inclined separation groove 14 at the root of the plug portion 11 and a second inclined edge 211 on the corresponding side of the socket portion 21, and the inclination direction of the second inclined edge 211 is opposite to that of the separation groove 14, when the plug portion 11 is inserted into the socket portion 21, the second inclined edge 211 and the separation groove 14 cross-engage, further increasing the relative movement friction between the plug portion 11 and the second hinged cover 2, thereby ensuring the stability of the interlock.

[0061] In some embodiments, a first inclined edge 111 is provided on the insertion end side of the plug portion 11, and an inclined separation groove 14 is provided on the root side of the other side of the plug portion 11. Both the first inclined edge 111 and the separation groove 14 have an acute angle between them and the flipping axis of the first flap 1.

[0062] A second bevel 211 is provided on the side of the socket 21 corresponding to the separation groove 14. When the plug 11 is inserted into the socket 21, the second bevel 211 is inserted into the separation groove 14.

[0063] like Figure 3 and Figure 4 As shown, by providing a first inclined edge 111 on one side of the plug portion 11 and a separation groove 14 on the other side, and providing a second inclined edge 211 on the side of the socket portion 21 corresponding to the separation groove 14, the difficulty of inserting the plug portion 11 is reduced, and the relative motion friction between the plug portion 11 and the second flap 2 after insertion is increased, which effectively improves the self-locking ability of the first flap 1 and the second flap 2.

[0064] Furthermore, the combined use of the first inclined side 111, the second inclined side 211, and the separation groove 14 prevents the plug part 11 from retracting in the opposite direction of insertion. It must move away from the second inclined side 211 before retracting to separate from the socket part 21. Even if the insertion direction of the plug part 11 is inconsistent with the retraction direction, and the retraction direction is a combination of two different directions, it further avoids the accidental separation of the first flap 1 and the second flap 2, thereby improving the interlocking stability of the first flap 1 and the second flap 2.

[0065] In some embodiments, a pressure cover 13 is provided at the middle position of the free end of the first hinged cover 1, and when the plug part 11 is inserted into the socket part 21, the pressure cover 13 covers the surface of the second hinged cover 2.

[0066] like Figure 2 As shown, a pressure cap 13 is provided at the middle position of the free end of the first hinged cover 1. When the plugs 11 on both sides are inserted into the sockets 21, the pressure cap 13 covers the surface of the second hinged cover 2. That is, the insertion parts of the pressure cap 13 and the plugs 11 clamp the second hinged cover 2 from both sides, thereby increasing the friction between the first hinged cover 1 and the second hinged cover 2 and improving the interlocking stability of the first hinged cover 1 and the second hinged cover 2.

[0067] In addition to the tape-free self-locking structure disclosed in the above embodiments, this utility model also provides a packaging box including the above-mentioned tape-free self-locking structure. For the structure of other parts of the packaging box, please refer to the prior art, which will not be described in detail here.

[0068] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0069] The tape-free self-locking structure and packaging box provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A self-locking structure without adhesive tape, which is arranged at an opening position of a packaging box, and the opening position of the packaging box is provided with at least a first flap (1) and a second flap (2), characterized in that, The tape-free self-locking structure includes: The plug part (11) is fixedly connected to the first swing cover (1); The socket (21) is disposed on the surface of the second flap (2). When the first flap (1) and the second flap (2) are flipped to the open position and closed, the plug (11) can be inserted into the socket (21), and there is an overlapping area between the inserted part of the plug (11) and the projection of the second flap (2) along the normal direction of the first flap (1) or the normal direction of the second flap (2). The flipping axis of the fixed end of the first flap (1) and the flipping axis of the fixed end of the second flap (2) are not collinear.

2. The tape-free self-locking structure according to claim 1, characterized in that, The surface of the first flap (1) is provided with an auxiliary pressure line (12) for bending the first flap (1) at the auxiliary pressure line (12); The auxiliary pressure wire (12) is perpendicular to the insertion direction of the plug part (11) into the socket part (21).

3. The tape-free self-locking structure according to claim 1 or 2, characterized in that, The first flap (1) and the second flap (2) are arranged adjacent to each other, and the flipping axis of the first flap (1) is perpendicular to the flipping axis of the second flap (2); The first flap (1) has a plug portion (11) on both sides of its free end, and the plug portion (11) on both sides of the first flap (1) is respectively connected to the socket portion (21) of the second flap (2).

4. The tape-free self-locking structure according to claim 3, characterized in that, The width of the insertion part (21) near the first hinged cover (1) at one end of the flip axis is greater than the width at the other end.

5. The tape-free self-locking structure according to claim 3, characterized in that, The plug portion (11) has a first inclined edge (111) on the side of the insertion end, which is used to make the width of the insertion end of the plug portion (11) smaller than the width of the root portion.

6. The tape-free self-locking structure according to claim 3, characterized in that, A separation groove (14) is provided on the root side of the plug part (11), and the separation groove (14) has an acute angle with the flipping axis of the first flap (1). The side of the socket (21) corresponding to the separation groove (14) is provided with a second oblique edge (211). When the plug (11) is inserted into the socket (21), the second oblique edge (211) is inserted into the separation groove (14).

7. The tape-free self-locking structure according to claim 3, characterized in that, A first inclined edge (111) is provided on the insertion end side of the plug part (11), and an inclined separation groove (14) is provided on the root side of the other side of the plug part (11). The first inclined edge (111) and the separation groove (14) are both at an acute angle to the flipping axis of the first flap (1). The socket (21) is provided with a second bevel (211) on the side corresponding to the separation groove (14). When the plug (11) is inserted into the socket (21), the second bevel (211) is inserted into the separation groove (14).

8. The tape-free self-locking structure according to claim 3, characterized in that, A pressure cap (13) is provided at the middle position of the free end of the first hinged cover (1). When the plug part (11) is inserted into the socket part (21), the pressure cap (13) covers the surface of the second hinged cover (2).

9. A packaging box, characterized in that, Includes the tape-free self-locking structure as described in any one of claims 1-8, the first hinged cover (1), and the second hinged cover (2).

Images