A packing box with self-locking structure

Abstract

The utility model provides a packing box with self -locking structure, including the box body that one end is set as the opening, still include: the lid, the lid is used to close the opening, one side of the lid is shaped in the box body, and the other end is provided with the first plug tongue of inserting in the opening, and the first insertion interface is opened on the lid, locking portion, the locking portion is used to lock the lid that closes the opening, the locking portion includes the locking sheet that is attached on the lid, one end of the locking sheet is shaped with the insertion piece of inserting in the first insertion interface, and the insertion piece is provided with the self -locking structure of clamping in the first insertion interface. Through the technical scheme, the locking of the lid under the state of covering the opening of the box body can be realized, and the safety performance of the packing box is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a packaging box with a self-locking structure. Background Technology

[0002] Paper packaging boxes are one of the most common packaging materials used to hold goods. Because paper packaging boxes are usually made by cutting and folding a whole piece of cardboard, they are widely used due to their advantages such as being more environmentally friendly and convenient to use.

[0003] However, once the packaging box contains the items and is sealed, it is easy for it to be opened during transportation, and it is also easy for people to steal it.

[0004] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a packaging box with a self-locking structure to solve the above-mentioned technical problems. The technical solution adopted by this utility model is as follows:

[0006] A packaging box with a self-locking structure includes a box body with one end open, and further includes:

[0007] A cover body is used to close the opening. One side of the cover body is formed in the box body, and the other end of the cover body is provided with a first tongue that is inserted into the opening. A first insertion interface is provided on the cover body.

[0008] The locking part is used to lock the cover that closes the opening. The locking part includes a locking piece that fits onto the cover. One end of the locking piece is formed with a plug-in piece that inserts into the first plug-in interface. The plug-in piece is provided with a self-locking structure that engages with the first plug-in interface.

[0009] Furthermore, the self-locking structure includes at least one plug-in flap formed on both sides of the plug-in piece, all the plug-in flaps on the same side are spaced apart from each other and define a clearance space, and the plug-in flap on one side and the edge of the locking piece are provided with the same clearance space, and the plug-in flap on one side of the plug-in piece and the plug-in flap on the other side are staggered.

[0010] Furthermore, the width defined by the plug tab and one of the plug tabs on one side is less than or equal to the width of the first plug interface, and the width defined by the plug tab and the plug tabs on both sides is greater than the width of the first plug interface.

[0011] Furthermore, the cover includes a first connecting piece and a cover body, and a first crease is provided between the first connecting piece and the cover body. One end of the first connecting piece is formed on an edge of the bottom of the box body along a first predetermined direction. The first connecting piece is folded along the bottom edge of the box body toward the opening direction. The first connecting piece is attached to the side wall of the box body, and the locking piece is attached to the cover body.

[0012] Furthermore, the locking part also includes a second connecting piece integrally formed with the locking piece. A second crease is provided between the second connecting piece and the locking piece. The second connecting piece is formed on the other side of the bottom of the box along a first predetermined direction. The second connecting piece is folded along the bottom edge of the box toward the opening direction. The second connecting piece is attached to the side wall of the box.

[0013] Furthermore, the first insertion interface is formed at the first crease position, and the locking piece has the same shape as the cover body, and the insertion piece is formed at the edge of the locking piece.

[0014] Furthermore, the box body includes a base plate, which defines the bottom of the box body for supporting the object. A first side wing and a second side wing are respectively formed along two edges of the base plate in a second predetermined direction. The first side wall and the second side wall each include a side plate integrally formed with the base plate and an upper flap extending along the second predetermined direction. Side flaps are respectively formed on the two edges of the side plate in the first predetermined direction. After the first side wing and the second side wall are folded, the side plate defines the side wall of the box body in the second direction. The side flaps on the same side of the two side plates are joined together to define the side wall of the box body in the first predetermined direction.

[0015] Furthermore, it is defined that the two side flaps on the side wall of the box body are respectively formed with a second insertion interface and a second insertion tongue for mutual insertion.

[0016] Furthermore, the second tongue includes a main body portion with the same width dimension as the second insertion interface, and a snap-fit ​​piece is formed on at least one side of the main body portion, and a third crease is provided between the snap-fit ​​piece and the main body portion for the snap-fit ​​piece to fold toward the main body portion.

[0017] The beneficial effects of this utility model are as follows:

[0018] During use, the item is placed inside the box along the opening. The lid is folded towards the opening to close it. The first latch is inserted into the opening to stabilize the closed lid. The locking tab is folded towards the lid and stacked on top, allowing the latch to be inserted into the first insertion interface. The self-locking mechanism locks the locking tab within the first insertion interface, ensuring it remains attached to the lid. This prevents both the lid and the locking tab from opening, thus maintaining the security of the packaging box.

[0019] This utility model provides a packaging box with a self-locking structure. After the packaging box is closed, the locking tab is inserted into the first insertion interface on the lid, thereby sealing the lid and preventing it from opening. This prevents items inside the packaging box from falling out or being opened by unauthorized personnel. This technical solution achieves locking of the lid when the box is closed, thus improving the security performance of the packaging box. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of this utility model after the locking piece is opened.

[0022] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the structure of this utility model after the cover and locking piece are opened simultaneously.

[0024] Figure 5 This is a plan view of the present invention.

[0025] In the diagram: 100 - Box body; 101 - Opening; 200 - Lid body; 201 - First tongue; 202 - First insertion interface; 300 - Locking part; 310 - Locking piece; 320 - Insertion piece; 321 - Insertion flap piece; 322 - Clearance space; 210 - First connecting piece; 220 - Lid body; 230 - First crease; 330 - Second connecting piece; 340 - Second crease; 102 - Side wall; 103 - Base plate; 110 - First side wing; 120 - Second side wing; 111 - Side plate; 112 - Upper flap piece; 113 - Side flap piece; 114 - Second insertion interface; 115 - Second tongue; 1151 - Main body; 1152 - Snap-fit ​​piece; 1153 - Third crease. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0027] This utility model provides a packaging box with a self-locking structure. After the packaging box is closed, the locking part 300 inserts the connecting piece 320 into the first insertion interface 202 on the cover 200, thereby sealing the cover 200 and preventing it from opening. This prevents items placed inside the packaging box from falling out or being opened by someone. This technical solution can lock the cover 200 when the opening 101 of the box 100 is closed, thereby improving the security performance of the packaging box.

[0028] Specifically, such as Figure 1-5 As shown, this utility model embodiment provides a packaging box with a self-locking structure, including a box body 100 with one end set as an opening 101, and a cover and locking part 300. The cover 200 is used to close the opening 101. One side of the cover 200 is formed in the box body 100, and the other end is provided with a first tongue 201 that is inserted into the opening 101. A first insertion interface 202 is provided on the cover 200. The locking part 300 is used to lock the cover 200 that closes the opening 101. The locking part 300 includes a locking piece 310 that is attached to the cover 200. One end of the locking piece 310 is formed with an insertion piece 320 that is inserted into the first insertion interface 202. A self-locking structure is provided on the insertion piece 320 that is engaged with the first insertion interface 202.

[0029] During use, the item is placed inside the box 100 along the opening 101. The lid 200 is folded towards the opening 101 to close the opening 101. After the first tongue 201 is inserted into the opening 101, the lid 200, which closes the opening 101, remains stable. The locking piece 310 is folded towards the lid 200 and stacked on top of the lid 200, so that the insert piece 320 is inserted into the first insertion interface 202. The self-locking structure locks the locking piece 310 within the first insertion interface 202, thus ensuring that the locking piece 310 remains within the first insertion interface 202. In other words, the locking piece 310 remains attached to the lid 200, thereby preventing the lid 200 from being opened and also preventing the locking piece 310 from being opened, thus maintaining the security of the packaging box.

[0030] In this embodiment, as Figure 2-4As shown, the self-locking structure includes at least one plug-in flap 321 formed on both sides of the plug-in piece 320. All plug-in flaps 321 on the same side are spaced apart from each other and define a clearance space 322. The plug-in flap 321 on one side and the edge of the locking piece 310 are provided with the same gap space as the clearance space 322. The plug-in flaps 321 on one side of the plug-in piece 320 and the plug-in flaps 321 on the other side are staggered.

[0031] During the process of inserting the connector 320 into the first insertion interface 202, the connector tabs 321 located on both sides of the connector 320 are alternately inserted into the first insertion interface 202, thereby enabling the connector tabs 321 and the inner wall of the first insertion interface 202 to mutually limit and engage, thus achieving a self-locking effect.

[0032] In this embodiment, the plug-in piece 320 and the first plug-in interface 202 have the following dimensional relationship: the width dimension defined by the plug-in piece 320 and one of the plug-in flaps 321 is less than or equal to the width dimension of the first plug-in interface 202, and the width dimension defined by the plug-in piece 320 and the plug-in flaps 321 on both sides is greater than the width dimension of the first plug-in interface 202.

[0033] In other words, when the plug-in piece 320 is located within the first insertion interface 202, since the width of the plug-in piece 320 and the plug-in flap 321 on one side are less than or equal to the width of the first insertion interface 202, the plug-in piece 320 and the plug-in flap 321 on the first side can be inserted into the first insertion interface 202 simultaneously during the insertion process. At this time, the second side of the plug-in piece 320 is exactly at the position of the clearance space 322, thus enabling the insertion action. At this time, the plug-in flap 321 on the second side of the plug-in piece 320 is precisely limited by the edge of the first insertion interface 202, while the first side of the plug-in piece 320 is exactly at the position corresponding to the clearance space 322 and the edge of the first insertion interface 202. By swinging the locking piece 310, the plug-in piece 320 moves along the length direction within the first insertion interface 202, thereby allowing the plug-in flap 321 on the second side of the plug-in piece 320 to be inserted into the first insertion interface 202. The insert 321 corresponds to the first insertion interface 202, allowing the insert 320 to be inserted towards the first insertion interface 202. That is, the insert tab 321 on the second side of the insert 320 is inserted into the first insertion interface 202. The insert tabs 321 on both sides of the insert 320 are inserted into the first insertion interface 202 in turn, thereby completing the insertion action between the insert 320 and the first insertion interface 202 and completing the self-locking action between the locking piece 310 and the cover 200. It is known that when the insert 320 is withdrawn from the first insertion interface 202, the locking piece 310 also needs to be swung to move the insert 320 along the length direction within the first insertion interface 202, thereby removing the insert tabs 321 on both sides of the insert 320 from the first insertion interface 202, thus releasing the top cover and allowing the top cover to be swung to open the box 100. It is worth noting that by setting interlocking tabs 321 on the interlocking tab 320, a specific opening method is required when opening the locking tab 310, thus providing a certain degree of confidentiality and improving the security performance of the packaging box, preventing it from being opened automatically or by others without authorization.

[0034] like Figure 4-5 As shown, the cover 200 includes a first connecting piece 210 and a cover body 220, and a first crease 230 is provided between the first connecting piece 210 and the cover body 220. One end of the first connecting piece 210 is formed on one edge of the bottom of the box 100 along a first predetermined direction. The first connecting piece 210 is folded along the bottom edge of the box 100 toward the opening 101. The first connecting piece 210 is attached to the side wall 102 of the box 100, and the locking piece 310 is attached to the cover body 220.

[0035] Meanwhile, the locking part 300 also includes a second connecting piece 330 integrally formed with the locking piece 310. A second crease 340 is provided between the second connecting piece 330 and the locking piece 310. The second connecting piece 330 is formed on the other side of the bottom of the box body 100 along the first predetermined direction. The second connecting piece 330 is folded along the bottom edge of the box body 100 toward the opening 101. The second connecting piece 330 is attached to the side wall 102 of the box body 100.

[0036] During the process of closing the opening 101 of the box 100, the first connecting piece 210 is folded upward along the bottom of the box 100, so that the first connecting piece 210 and one side wall 102 of the box 100 are in contact with each other to protect them. The lid body 220 is folded upward along the first crease 230 towards the opening 101 of the box 100 to close the opening 101 and seal the box 100. Similarly, the second connecting piece 330 is folded upward along the bottom of the box, so that the second connecting piece 330 and one side wall 102 of the bottom box are in contact with each other to protect them. At this time, the locking piece 310 is folded upward along the second crease 340 towards the lid body 220, so that the locking piece 310 is in contact with the lid body 220 and can be easily inserted into the first insertion interface 202 to complete the locking action of the lid body 220 and prevent the lid body 220 from being opened abnormally.

[0037] In this embodiment, the first insertion interface 202 is formed at the position of the first crease 230, and the locking piece 310 has the same shape as the cover body 220, and the insertion piece 320 is formed at the edge of the locking piece 310. That is to say, the cover body 220 and the locking piece 310 have the same shape, so that after the locking piece 310 locks the cover body 220, the packaging box can have a clean surface and the reliability of locking the cover body 220 is guaranteed.

[0038] In this embodiment, the box body 100, the lid 200, and the locking part 300 are formed by cutting and shaping a piece of cardboard. Figure 5This is a plan view of the packaging box. The box body 100 includes a base plate 103, which defines the bottom of the box body 100 for supporting the object. A first side wing 110 and a second side wing 120 are formed along the two edges of the base plate 103 in a second predetermined direction. The first side wall 102 and the second side wall 102 each include a side plate 111 integrally formed with the base plate 103 and an upper flap 112 extending along the second predetermined direction. Side flaps 113 are formed on the two edges of the side plate 111 in the first predetermined direction. After the first side wing 110 and the second side wall 102 are folded, the side plate 111 defines the side wall 102 of the box body 100 in the second direction. The side flaps 113 on the same side of the two side plates 111 are joined together to define the side wall 102 of the box body 100 in the first predetermined direction. Meanwhile, the cover 200 is formed on one edge of the base plate 103 along the first predetermined direction, and the locking part 300 is formed on the other edge of the base plate 103 along the first predetermined direction.

[0039] During the folding and forming process of the packaging box, the first side wing 110 and the second side wall 102 are folded towards each other along the edge of the bottom plate 103, so that the side plate 111 forms the side wall 102 of the box body 100 in the second predetermined direction. At the same time, the two upper flaps 112 are folded towards each other along the upper edge of the side plate 111, so that the free ends of the upper flaps 112 overlap each other, so that the two upper flaps 112 cover the opening 101 of the box body 100, which facilitates the support of the lid body 220. The two side flaps 113 located on the same side are folded towards each other along the vertical edge of the side plate 111, so that the free ends of the side flaps 113 overlap each other, thus forming the side wall 102 of the box body 100 in the first predetermined direction, which is the side wall 102 protected by the first connecting piece 210 and the second connecting piece 330.

[0040] In order to ensure the stability of the side wall 102 constituting the box body 100 in a first predetermined direction and to prevent the two side flaps 113 from moving and affecting the stability of the packaging box, it is defined that the two side flaps 113 of the side wall 102 of the box body 100 are respectively formed with a second insertion interface 114 and a second insertion tongue 115 for mutual insertion.

[0041] After the two corresponding side flaps 113 are mated together, the second tongue 115 is inserted into the second insertion interface 114, thereby realizing the mutual connection of the two side flaps 113 and preventing the side flaps 113 from moving.

[0042] In this embodiment, after the two side flaps 113 are inserted into each other, the second insertion interface 114 and the second insertion tongue 115 are prevented from being disengaged from each other. The second insertion tongue 115 includes a main body portion 1151 with the same width dimension as the second insertion interface 114, and a snap-fit ​​piece 1152 is formed on at least one side of the main body portion 1151. A third crease 1153 is provided between the snap-fit ​​piece 1152 and the main body portion 1151 for the snap-fit ​​piece 1152 to be folded toward the main body portion 1151. When the second tongue 115 is inserted into the second insertion interface 114, the snap-fit ​​piece 1152 is folded along the third crease 1153 toward the main body 1151, so that the snap-fit ​​piece 1152 and the main body 1151 fit together, thereby enabling the second tongue 115 to have a width that matches the second insertion interface 114 and can be smoothly inserted into the second insertion interface 114. Then, the snap-fit ​​piece 1152 is folded along the third crease 1153 toward a direction away from the main body 1151, so that the second tongue 115 remains in an unfolded state. At this time, the snap-fit ​​piece 1152 restricts the second tongue 115 from disengaging from the second insertion interface 114.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A packaging box with a self-locking structure, comprising a box body with one end open, characterized in that, It also includes: A cover body is used to close the opening. One side of the cover body is formed in the box body, and the other end of the cover body is provided with a first tongue that is inserted into the opening. A first insertion interface is provided on the cover body. The locking part is used to lock the cover that closes the opening. The locking part includes a locking piece that fits onto the cover. One end of the locking piece is formed with a plug-in piece that inserts into the first plug-in interface. The plug-in piece is provided with a self-locking structure that engages with the first plug-in interface.

2. A packaging box with a self-locking structure according to claim 1, characterized in that, The self-locking structure includes at least one plug-in flap formed on both sides of the plug-in piece. All the plug-in flaps on the same side are spaced apart from each other and define a clearance space. The plug-in flap on one side and the edge of the locking piece are provided with the same clearance space. The plug-in flap on one side of the plug-in piece and the plug-in flap on the other side are staggered.

3. A packaging box with a self-locking structure according to claim 2, characterized in that, The width defined by the plug tab and one of the plug tabs on one side is less than or equal to the width of the first plug interface, and the width defined by the plug tab and the plug tabs on both sides is greater than the width of the first plug interface.

4. A packaging box with a self-locking structure according to claim 1, characterized in that, The cover includes a first connecting piece and a cover body, and a first crease is provided between the first connecting piece and the cover body. One end of the first connecting piece is formed on an edge of the bottom of the box body along a first predetermined direction. The first connecting piece is folded along the bottom edge of the box body toward the opening direction. The first connecting piece is attached to the side wall of the box body, and the locking piece is attached to the cover body.

5. A packaging box with a self-locking structure according to claim 4, characterized in that, The locking part also includes a second connecting piece integrally formed with the locking piece. A second crease is provided between the second connecting piece and the locking piece. The second connecting piece is formed on the other side of the bottom of the box along a first predetermined direction. The second connecting piece is folded along the bottom edge of the box toward the opening direction. The second connecting piece is attached to the side wall of the box.

6. A packaging box with a self-locking structure according to claim 5, characterized in that, The first insertion interface is formed at the first crease position, and the locking piece has the same shape as the cover body, and the insertion piece is formed at the edge of the locking piece.

7. A packaging box with a self-locking structure according to claim 4, characterized in that, The box body includes a base plate that defines the bottom of the box body for supporting the object. A first side wing and a second side wing are respectively formed along two edges of the base plate in a second predetermined direction. The first side wall and the second side wall each include a side plate integrally formed with the base plate and an upper flap extending along the second predetermined direction. Side flaps are respectively formed on the two edges of the side plate in the first predetermined direction. After the first side wing and the second side wall are folded, the side plate defines the side wall of the box body in the second direction. The side flaps on the same side of the two side plates are joined together to define the side wall of the box body in the first predetermined direction.

8. A packaging box with a self-locking structure according to claim 7, characterized in that, The two side flaps defined as the side wall of the box body are respectively formed with a second insertion interface and a second insertion tongue for mutual insertion.

9. A packaging box with a self-locking structure according to claim 8, characterized in that, The second tongue includes a main body portion with the same width dimension as the second insertion interface, and a snap-fit ​​piece is formed on at least one side of the main body portion. A third crease is provided between the snap-fit ​​piece and the main body portion for the snap-fit ​​piece to fold toward the main body portion.

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