Self-locking anti-theft carton with improved structure

By setting up a shaker and snap tab at the bottom of the carton and using folding mark detection, the problem that the existing self-locking carton is not easily discovered after private disassembly is solved, and the functions of anti-private disassembly and anti-theft disassembly are realized.

CN222629801UActive Publication Date: 2025-03-18HEFEI LCFC INFORMATION TECH
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Patent Information

Application Number
CN202421183873.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-27
Publication Date
2025-03-18
Estimated Expiration
2034-05-27

AI Technical Summary

Technical Problem

The existing self-locking cartons are not easily detected after being removed privately and lack anti-tamping function.

Method used

A structurally improved self-locking anti-theft carton is designed. By providing a first shaker and a second shaker at the bottom of the carton, and a snap tab and fold indentation are provided at the connection, the self-locking fixation and anti-tamping detection of the bottom wall of the carton is realized.

Benefits of technology

It realizes the stable fixation of the bottom wall of the carton and the anti-private removal and anti-theft removal functions. When the carton is removed privately, the folding marks are obvious and can respond to the user in a timely manner.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging equipment, and provides a self-locking anti-theft carton with an improved structure. First rocking sheets are respectively arranged in two long side edges of the bottom of the carton body; second shaking pieces are arranged in the two wide side edges of the bottom of the carton body correspondingly. A buckling piece is further arranged in the middle of the first rocking piece, and a first folding indentation is arranged at the joint of the buckling piece and the first rocking piece; a lap joint head is further arranged at the lap joint end of the first swing piece and the second swing piece, and a second folding indentation is arranged at the joint of the lap joint head and the first swing piece. And the two first rocking sheets can be mutually overlapped towards each other and are clamped through the corresponding hasps of the respective buckling sheets. When the self-locking anti-theft carton with the improved structure is privately disassembled from the bottom wall of the carton or is stolen, very intuitive folding marks are left in the first folding indentation and the second folding indentation, so that the problem that the carton is disassembled can be reflected to a user in time, and the functions of preventing privately disassembling and preventing theft can be effectively realized.
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Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to a self-locking anti-theft paper box with improved structure. Background Art

[0002] Cartons are a common type of product packaging in our daily lives and are often used for packaging and protection of food, electronic products, etc.

[0003] The traditional carton packaging in the prior art has a simple structure, and its bottom is formed by long and wide rocker bars overlapping and then pasted with tape. However, the more novel self-locking carton in the prior art is to additionally set an insertion edge in the long baffle bar at the bottom, and set a corresponding insertion interface on the inner wall of the carton. The self-locking support of the bottom wall of the carton is achieved by inserting the insertion edge into the insertion interface.

[0004] However, the existing self-locking cartons also have certain disadvantages in use. First, the bottom wall of the carton formed by self-locking can be easily pressed open from the outside, and the structure of the self-locking carton is still well maintained after being opened. This also results in the existing self-locking cartons not having the function of anti-tampering, and it is not easy to be discovered after being privately opened.

[0005] Therefore, there is an urgent need for a self-locking anti-theft carton with a new structure on the market to solve the problem that the self-locking packaging carton in the prior art is not easy to be discovered after private disassembly and has no anti-disassembly function. Utility Model Content

[0006] The disclosed embodiments provide a self-locking anti-theft carton with an improved structure, in order to solve the problem that the self-locking packaging carton in the prior art is difficult to be discovered after being privately opened and has no anti-theft function.

[0007] The structure-improved self-locking anti-theft carton provided by the embodiment of the present disclosure includes a carton body;

[0008] The two long sides of the bottom of the carton body are respectively provided with first shaking pieces;

[0009] The two wide sides at the bottom of the carton body are respectively provided with second shaking pieces;

[0010] Wherein, a buckle piece is further provided in the middle of the first shaking piece, and a first folding mark is provided at the connection between the buckle piece and the first shaking piece;

[0011] The overlapped ends of the first shaking piece and the second shaking piece are also provided with an overlap joint, and the connection between the overlap joint and the first shaking piece is provided with a second folding mark;

[0012] The two first shaking pieces can overlap each other and be correspondingly buckled and locked through their respective buckle pieces.

[0013] In one possible implementation manner, the folding depression depth of the first folding mark and / or the second folding mark is one fifth to two thirds of the thickness of the first shaking piece.

[0014] In one embodiment, the first shaking piece includes a first subsection and a second subsection connected in one piece;

[0015] The first sub-segment has a width greater than that of the second sub-segment, and a connection with the second sub-segment forms an inclined side edge with a gradually changing width;

[0016] The buckle piece is protruded outwardly and arranged on the inclined side edge, and the first folding mark is correspondingly arranged on the inclined side edge.

[0017] In one possible implementation, the buckle piece has an arc side and a straight side facing away from the first shaking piece;

[0018] One end of the arc side is connected to one end of the first fold indentation, and the other end is connected to the other end of the first fold indentation through the straight side.

[0019] In one possible implementation, the first sub-segment and the second sub-segment have a central dividing line along the length direction;

[0020] The side of the buckle piece facing away from the first subsection at least protrudes beyond the central dividing line.

[0021] In one embodiment, a side of the overlap joint close to the second shaking piece is set as a vertical side extending along the width direction of the first shaking piece;

[0022] The second folding indentation is inclined at an acute angle to the vertical side, and the lap joint can be relatively flipped around the second folding indentation.

[0023] In one embodiment, the second folding mark further includes a plurality of auxiliary folding marks spaced apart at the end of the first shaking piece;

[0024] The auxiliary folding indentation is spaced apart from the second folding indentation and is parallel or non-parallel to the second folding indentation;

[0025] The depth of the folding depression of the auxiliary folding mark is one fifth to two thirds of the thickness of the first shaking piece.

[0026] In one embodiment, a plug-in portion is protruded from the long side of the first shaking piece facing away from the carton body;

[0027] After the carton body is assembled and formed, the plug-in portion is clamped with the relative inner wall of the carton body.

[0028] In one possible implementation manner, the plug-in portion is configured as a plug-in edge extending along the length direction of the first shaking piece;

[0029] The width of the plugging edge is 1 to 2 times the thickness of the first shaking piece.

[0030] In one possible implementation manner, a slot corresponding to the plug-in portion is further provided in the inner wall of the carton body;

[0031] The plug-in portion can be at least partially plugged into the socket.

[0032] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0033] When assembling the structurally improved self-locking anti-theft carton provided by the embodiment of the present disclosure, the carton body is first formed into a square ring shape, so that the first rocker tabs in the two long sides at the bottom of the carton body can be symmetrically arranged about the center of the carton body, and the second rocker tabs in the two wide sides at the bottom of the carton body are also symmetrically arranged about the center of the carton body, and the lap joints in the ends of the first rocker tabs can be overlapped with the second rocker tabs, and the snap tabs in the middle of the two first rocker tabs can face each other and be correspondingly snapped, thereby realizing mutual fixation of the two first rocker tabs and the two second rocker tabs, and finally realizing the bottom wall snap-fitting molding of the carton body by the "two first rocker tabs + two second rocker tabs" method.

[0034] The structurally improved self-locking anti-theft carton has a simple structure, does not require adhesive tape, and can achieve stable fixation and forming of the bottom wall of the carton by latching and locking the clips together. Moreover, when the carton is opened privately or stolen from the bottom wall, very intuitive folding marks are left in the first fold indentation and the second fold indentation, thereby promptly reflecting the problem of opening to the user, and effectively realizing the function of preventing private disassembly and theft.

[0035] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0037] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0038] Figure 1 The figure shows the layout of the self-locking anti-theft paper box with improved structure provided by the embodiment of the present disclosure;

[0039] Figure 2 A partial structural diagram of a self-locking anti-theft paper box with improved structure provided by an embodiment of the present disclosure is shown;

[0040] Figure 3 The figure shows the assembly inner side view of the self-locking anti-theft paper box with improved structure provided by the embodiment of the present disclosure;

[0041] Figure 4 The outer side view of the assembly of the structurally improved self-locking anti-theft paper box provided by the embodiment of the present disclosure is shown.

[0042] Explanation of the numbers in the figure: 1. Carton body; 11. Slotted slot; 2. First rocker; 21. Snap-on piece; 22. Overlap joint; 23. First fold indentation; 24. Second fold indentation; 241. Auxiliary fold indentation; 25. First sub-segment; 251. Insertion portion; 26. Second sub-segment; 3. Second rocker. DETAILED DESCRIPTION

[0043] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0044] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0045] Combination Figure 1 and Figure 3 As shown, the embodiment of the present disclosure provides a structurally improved self-locking anti-theft carton, which includes a carton body 1; first rockers 2 are respectively provided in the two long sides of the bottom of the carton body 1; second rockers 3 are respectively provided in the two wide sides of the bottom of the carton body 1; wherein, a snap piece 21 is also provided in the middle of the first rocker 2, and a first folding mark 23 is provided at the connection between the snap piece 21 and the first rocker 2; a lap joint 22 is also provided at the end where the first rocker 2 and the second rocker 3 overlap, and a second folding mark 24 is provided at the connection between the lap joint 22 and the first rocker 2; the two first rockers 2 can overlap each other and be correspondingly snap-connected through their respective snap pieces 21.

[0046] When assembling the structurally improved self-locking anti-theft carton, the carton body 1 is first formed into a square ring shape, so that the first rocker flaps 2 in the two long sides at the bottom of the carton body 1 can be symmetrically arranged about the center of the carton body 1, and the second rocker flaps 3 in the two wide sides at the bottom of the carton body 1 are also symmetrically arranged about the center of the carton body 1, and the lap joints 22 in the ends of the first rocker flaps 2 can be overlapped with the second rocker flaps 3, and the snap pieces 21 in the middle of the two first rocker flaps 2 can face each other and correspondingly snap-fit, thereby realizing mutual fixation of the two first rocker flaps 2 and the two second rocker flaps 3, and finally realizing the bottom wall snap-fitting molding of the carton body 1 by the "two first rocker flaps 2 + two second rocker flaps 3" method.

[0047] Moreover, since a first folding mark 23 is provided at the connection between the snap piece 21 and the first rocker 2, and a second folding mark 24 is provided at the connection between the lap joint 22 and the first rocker 2, when the structurally improved self-locking anti-theft carton is privately opened or stolen from below, the first rocker 2 will flip around the first folding mark 23 and the lap joint 22 will flip around the second folding mark 24, and both will cause very serious folding marks to be left in the first folding mark 23 and the second folding mark 24, thereby revealing the problem of being privately opened or stolen.

[0048] Since a second fold mark 24 is provided at the connection between the lap joint 22 in the end of the first rocker 2 and the first rocker 2, the extension direction of the pressure line of the second fold mark 24 provides the functional effect of bonding and positioning the lap joint 22 and the second rocker 3. In addition, the provision of the second fold mark 24 also facilitates the specific bending of the lap joint 22 around the end of the first rocker 2, so as to facilitate the gluing process on the inner side of the lap joint 22.

[0049] Compared with the common packaging cartons or self-locking cartons in the prior art, the structurally improved self-locking anti-theft carton provided by the embodiment of the present disclosure has a simple structure, and the self-locking and fixing forming of the bottom wall of the carton can be achieved by latching and connecting the snap pieces 21 with each other. Moreover, when the carton is privately opened or stolen from the bottom wall, very intuitive folding marks are left in the first fold indentation 23 and the second fold indentation 24, thereby being able to promptly reflect the problem of disassembly to the user, and effectively realizing the function of preventing private disassembly and theft.

[0050] In addition, since the end of the first shaking piece 2 is overlapped with the second shaking piece 3 through the overlap joint 22, and the overlap joint 22 is connected to the first shaking piece 2 through the second fold mark 24, the overlap joint 22 can be provided with the functional effect of bonding and positioning. In addition, the provision of the second fold mark 24 also facilitates the specific bending of the overlap joint 22 around the end of the first shaking piece 2, so as to facilitate the gluing process on the inner side of the overlap joint 22.

[0051] In one embodiment, the folding depression depth of the first folding mark 23 and / or the second folding mark 24 is one fifth to two thirds of the thickness of the first shaking piece 2 .

[0052] The folding depression depth of the first folding mark 23 and / or the second folding mark 24 is limited to between one fifth and two thirds of the thickness of the first rocker 2. This ensures, on the one hand, that the snap plate 21 can be flexibly flipped around the first folding mark 23 and the lap joint 22 can be flexibly flipped around the second folding mark 24. On the other hand, it also ensures that the structural strength at the first folding mark 23 and the second folding mark 24 is moderate, thereby ensuring the connection reliability between the snap plate 21 and the first rocker 2, and the connection reliability between the lap joint 22 and the first rocker 2.

[0053] Of course, the width of the folding depression of the first folding mark 23 and / or the second folding mark 24 can also be flexibly adapted and adjusted according to the thickness of the first shaking piece 2, and the folding depression can be specifically limited to ≥0.7 mm.

[0054] The first fold mark 23 and / or the second fold mark 24 are unidirectional indentations with a deeper depression on one side of a single surface, which are different from the double-sided flip marks at the connection between the first rocker 2, the second rocker 3 and the carton body 1. The single-sided recessed first fold mark 23 can facilitate better processing and molding of the snap-on piece 21, and when the snap-on piece 21 is detached from the outer bottom of the bottom wall of the carton, the first fold mark 23 can very intuitively show the folding mark.

[0055] The second fold mark 24 can facilitate the processing and forming of the lap joint 22, and the extension direction of the pressure line of the second fold mark 24 provides the functional effect of bonding and positioning the lap joint 22 and the second rocker 3. In addition, the provision of the second fold mark 24 also facilitates the specific bending of the lap joint 22 around the end of the first rocker 2, so as to facilitate the gluing process on the inner side of the lap joint 22.

[0056] In one embodiment, the first shaking piece 2 includes a first sub-segment 25 and a second sub-segment 26 that are integrally connected; the width of the first sub-segment 25 is greater than that of the second sub-segment 26, and a slanted side edge with a gradually changing width is formed at the connection with the second sub-segment 26; the snap piece 21 protrudes outwardly and is arranged on the slanted side edge, and the first fold indentation 23 is correspondingly arranged on the slanted side edge.

[0057] Specific, combined Figure 2 and Figure 3To further explain in detail, the first rocker 2 is specifically configured as a first sub-segment 25 and a second sub-segment 26 that are integrally connected, and the width of the first sub-segment 25 is greater than that of the second sub-segment 26, and the snap-on piece 21 protrudes outward and is arranged in the inclined side formed at the connection between the first sub-segment 25 and the second sub-segment 26, so that the first rocker 2 in the two long sides of the bottom of the carton body 1 can be centrally symmetrically arranged about the center of the carton body 1, and when the two first rockers 2 are respectively snap-connected to each other through the snap-on pieces 21, the first sub-segment 25 of one can be correspondingly covered on the second sub-segment 26 of the other, and the two snap-on pieces 21 snap-connect to each other to snap-connect the first sub-segment 25 of the other, thereby stably realizing the bottom wall snap-on molding of the carton body 1.

[0058] The specific configuration of the first shaking piece 2 has the beneficial effects of simple structure and stable and convenient clamping and fixing.

[0059] In one embodiment, the snap-on piece 21 has an arc side and a straight side facing away from the first shaking piece 2; one end of the arc side is connected to one end of the first fold mark 23, and the other end is connected to the other end of the first fold mark 23 through the straight side.

[0060] Specific, combined Figure 2 To further explain in detail, the snap-on piece 21 is specifically configured to have an arc side and a straight side facing away from the first rocker 2, and one end of the arc side is connected to one end of the first fold mark 23, and the other end is connected to the other end of the first fold mark 23 through the straight side. In this way, the arc side in the snap-on piece 21 can avoid stress concentration when they are snapped together, thereby effectively avoiding the problem of damage to the snap-on piece 21 when snapped together, and the straight side can improve the extended protrusion length of the snap-on piece 21 in the first rocker 2, thereby ensuring that the snap-on piece 21 has a sufficiently large snap-on area.

[0061] The specific arrangement of the buckle piece 21 has the beneficial effects of simple structure and firm and reliable buckle connection.

[0062] In one possible implementation manner, the first sub-segment 25 and the second sub-segment 26 have a central dividing line along the length direction; the side of the buckle piece 21 facing away from the first sub-segment 25 at least protrudes beyond the central dividing line.

[0063] Specific, combined Figure 2 To further explain in detail, the length of the extended protrusion of the snap piece 21 on the side facing away from the first sub-segment 25 is set to exceed the central dividing line of the first rocker 2, so that when the two first rockers 2 are snap-fitted to each other through their respective snap pieces 21, it can be ensured that the snap piece 21 has a sufficiently large effective snap-fitting area to correspond to the snap-fitting in the first sub-segment 25 of the other first rocker 2.

[0064] The specific arrangement of the buckle piece 21 has the beneficial effects of simple structure and being able to ensure the effective buckle and buckle area.

[0065] In one embodiment, the side of the lap joint 22 close to the second shaking piece 3 is set as a vertical side extending along the width direction of the first shaking piece 2; the second fold mark 24 is inclined at an acute angle to the vertical side, and the lap joint 22 can be relatively flipped around the second fold mark 24.

[0066] Specific, combined Figure 2 To further explain in detail, the side of the lap joint 22 close to the second rocker 3 is set as a vertical side extending along the width direction of the first rocker 2, and the second fold mark 24 is set to be inclined at an acute angle to the vertical side, so that when the second rocker 3 is subjected to an external load, the load will be transmitted to the lap joint 22, and the lap joint 22 can be relatively flipped around the second fold mark 24, so that the second fold mark 24 can produce a very intuitive folding mark, thereby making it easier for users to understand that the structurally improved self-locking anti-theft carton has been privately dismantled or stolen during transportation.

[0067] In one embodiment, the second fold mark 24 also includes a plurality of auxiliary fold marks 241 spaced apart at the end of the first shaking piece 2; the auxiliary fold marks 241 are spaced apart from the second fold marks 24 and are parallel or non-parallel to the second fold marks 24; the folding depression depth of the auxiliary fold marks 241 is one fifth to two thirds of the thickness of the first shaking piece 2.

[0068] Specific, combined Figure 2 and Figure 4 To further explain in detail, a plurality of auxiliary fold marks 241 are arranged at intervals at the end of the first shaking piece 2, and the auxiliary fold marks 241 include auxiliary fold marks 241 which are parallel to the second fold mark 24 and auxiliary fold marks 241 which are non-parallel to the second fold mark 24. By arranging a plurality of auxiliary fold marks 241, the impact of external force load on the lap joint 22 can be fully relieved, and the protection of the bonding structure at the second fold mark 24, the lap joint 22 and the second shaking piece 3 is further improved, thereby avoiding the problem of bumping and tearing between the lap joint 22 and the second shaking piece 3 at the second fold mark 24.

[0069] Specific, combined Figure 4To further explain in detail, the multiple auxiliary fold marks 241 are also set as unidirectional indentations with deeper depressions on one side of a single surface, which is equivalent to "weakening" the structural strength of the first rocker 2 at the position corresponding to the auxiliary fold mark 241 to a certain extent. In this way, when the corners of the structurally improved self-locking anti-theft carton are impacted by bumps, the impact energy will be "torn" and slowly released along both sides of the multiple auxiliary fold marks 241, thereby reducing the impact force of the bump on the second fold mark 24, so as to ultimately protect the structural stability of the bonding point between the second fold mark 24, the lap joint 22 and the second rocker 3.

[0070] In one embodiment, a plug-in portion 251 is protruded from the long side of the first shaking piece 2 facing away from the carton body 1 ; after the carton body 1 is assembled, the plug-in portion 251 is snap-fitted with the relative inner wall of the carton body 1 .

[0071] Specific, combined Figure 1 and Figure 3 Further detailed description, an insert portion 251 is also protruded from the long side of the first rocker 2 facing away from the carton body 1, and the insert portion 251 can abut against the relative inner wall of the carton body 1 after the carton body 1 is assembled and formed, so that the insert portion 251 can further improve the supporting stability of the first rocker 2 and the inner peripheral wall of the carton body 1, so that the supporting and solidifying effect of the three-dimensional forming of the carton body 1 is better.

[0072] In one possible implementation, the plug-in portion 251 is configured as a plug-in edge extending along the length direction of the first shaking piece 2 ; and the width of the plug-in edge is 1 to 2 times the thickness of the first shaking piece 2 .

[0073] Specific, combined Figure 1 and Figure 3 To further explain in detail, the plug-in portion 251 is specifically configured as a plug-in edge extending along the length direction of the first rocker 2, and the width of the plug-in edge is 1 to 2 times the thickness of the first rocker 2. This allows the plug-in portion 251 itself to have a certain structural strength, thereby ensuring that it will not be squeezed and collapsed by the inner wall of the carton body 1.

[0074] In one embodiment, a slot receiving opening 11 corresponding to the inserting portion 251 is further opened in the inner wall of the carton body 1 ; the inserting portion 251 can be at least partially inserted into the slot receiving opening 11 .

[0075] Specific, combined Figure 1 and Figure 3To further explain in detail, a slot receiving opening 11 corresponding to the plug-in portion 251 is also opened in the inner wall of the carton body 1, and the plug-in portion 251 can be at least partially plugged into the slot receiving opening 11. In this way, through the plug-in action of the plug-in portion 251 and the slot receiving opening 11, the connection stability between the first rocker 2 and the inner wall of the carton body 1 can be further improved, so that the bearing capacity of the bottom wall of the carton body 1 formed by overlapping the two first rocker flaps 2 and the two second rocker flaps 3 is stronger.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0077] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A self-locking anti-theft carton with improved structure, characterized in that: It comprises a carton body (1); The two long sides of the bottom of the carton body (1) are respectively provided with first shaking pieces (2); Second shaking pieces (3) are respectively provided on two wide side edges of the bottom of the carton body (1); A buckle piece (21) is further provided in the middle of the first shaking piece (2), and a first folding mark (23) is provided at the connection between the buckle piece (21) and the first shaking piece (2); The overlapped ends of the first shaking piece (2) and the second shaking piece (3) are also provided with an overlap joint (22), and the connection between the overlap joint (22) and the first shaking piece (2) is provided with a second folding mark (24); The two first shaking pieces (2) can overlap each other and can be correspondingly buckled and locked through their respective buckle pieces (21).

2. The structure-improved self-locking anti-theft paper box according to claim 1 is characterized in that: The folding depression depth of the first folding mark (23) and / or the second folding mark (24) is one fifth to two thirds of the thickness of the first shaking piece (2).

3. The structure-improved self-locking anti-theft paper box according to claim 1 is characterized in that: The first shaking piece (2) comprises a first subsection (25) and a second subsection (26) which are integrally connected; The width of the first sub-segment (25) is greater than that of the second sub-segment (26), and a slanted side edge with a gradually changing width is formed at the connection with the second sub-segment (26); The buckle piece (21) is protruding outwardly and is arranged on the inclined side edge, and the first folding mark (23) is correspondingly arranged on the inclined side edge.

4. The structure-improved self-locking anti-theft paper box according to claim 3 is characterized in that: The buckle piece (21) has an arc side and a straight side facing away from the first shaking piece (2); One end of the arc side is connected to one end of the first fold mark (23), and the other end is connected to the other end of the first fold mark (23) through the straight side.

5. The structure-improved self-locking anti-theft paper box according to claim 3 is characterized in that: The first subsection (25) and the second subsection (26) have a central dividing line along the length direction; The side of the buckle piece (21) facing away from the first subsection (25) at least protrudes beyond the central dividing line.

6. The structure-improved self-locking anti-theft paper box according to claim 1 is characterized in that: A side of the overlap joint (22) close to the second shaking piece (3) is arranged as a vertical side extending along the width direction of the first shaking piece (2); The second folding indentation (24) is arranged to be inclined at an acute angle to the vertical side, and the lap joint (22) can be relatively turned around the second folding indentation (24).

7. The structure-improved self-locking anti-theft paper box according to claim 6 is characterized in that: The second folding mark (24) further comprises a plurality of auxiliary folding marks (241) arranged at intervals at the end of the first shaking piece (2); The auxiliary folding mark (241) is spaced apart from the second folding mark (24), and is parallel or non-parallel to the second folding mark (24); The depth of the folding depression of the auxiliary folding mark (241) is one fifth to two thirds of the thickness of the first shaking piece (2).

8. The structure-improved self-locking anti-theft paper box according to claim 1 is characterized in that: The first shaking piece (2) is also provided with a plug-in portion (251) protruding from the long side facing away from the carton body (1); After the carton body (1) is assembled and formed, the plug-in portion (251) is snap-fitted with the relative inner wall of the carton body (1).

9. The structure-improved self-locking anti-theft paper box according to claim 8 is characterized in that: The plug-in portion (251) is configured as a plug-in edge extending along the length direction of the first shaking piece (2); Furthermore, the width of the plugging edge is 1 to 2 times the thickness of the first shaking piece (2).

10. The structure-improved self-locking anti-theft paper box according to claim 8, characterized in that: The inner wall of the carton body (1) is also provided with a slot receiving opening (11) corresponding to the plug-in portion (251); The plug-in portion (251) can be at least partially plugged into the socket opening (11).