Hasp and packing case

Abstract

The embodiment of the application provides a lock catch and a packaging box, the lock catch comprises a male catch and a female catch, the male catch comprises a male catch seat and a plug tongue, the plug tongue comprises a lock tongue and a lock hook, one end of the lock tongue is connected to the male catch seat in a first direction, the other end is provided with two first limiting teeth, the two first limiting teeth are arranged on both sides of the lock tongue in a second direction, the two lock hooks are located on both sides of the lock tongue in a third direction, one end of the lock hook is connected to the male catch seat in the first direction, the other end is provided with a hook part, the female catch comprises a female catch seat and a shell, the shell and the female catch seat surround to form a slot; two sides of the slot in the third direction are provided with openings, the openings are used for clamping the hook part, the slot is provided with a second limiting tooth and a third limiting tooth, the second limiting tooth and the third limiting tooth are oppositely arranged in the second direction, the other end of the lock tongue is inserted between the second limiting tooth and the third limiting tooth, so that four-way locking function is realized, and the locking effect is improved.

Description

Technical Field

[0001] This application relates to the field of packaging technology, and more particularly to a lock and a packaging box. Background Technology

[0002] In the field of product packaging, traditional fastening structures generally suffer from problems such as insufficient locking reliability and poor anti-counterfeiting performance. As consumers' demands for packaging experience increase, the market urgently needs a fastening structure that can ensure packaging sturdiness while also providing anti-counterfeiting features. Utility Model Content

[0003] This application provides a latch and a packaging box, which are designed to improve the locking effect of the latch.

[0004] An embodiment of the first aspect of this application provides a latch, which includes a male latch and a female latch. The male latch includes a male latch seat and a tongue. The tongue includes a locking bolt and a locking hook. One end of the locking bolt along a first direction is connected to the male latch seat, and the other end of the locking bolt along the first direction is provided with two first limiting teeth, which are respectively located on both sides of the locking bolt along a second direction. Two locking hooks are located on both sides of the locking bolt along a third direction. One end of the locking hook along the first direction is connected to the male latch seat, and the other end of the locking hook along the first direction is provided with a hook portion, which protrudes in the third direction away from the locking bolt. The female latch includes a female latch seat and a housing. The housing is located on one side of the female buckle seat along the second direction. The housing and the female buckle seat form a slot for inserting the tongue. The slot has openings on both sides along the third direction for engaging with the hook. The slot has a second limiting tooth and a third limiting tooth. The second limiting tooth and the third limiting tooth are arranged opposite each other along the second direction. The space between the second limiting tooth and the third limiting tooth is for inserting the other end of the locking tongue. The second limiting tooth engages with one of the two first limiting teeth, and the third limiting tooth engages with the other of the two first limiting teeth. The first direction, the second direction, and the third direction intersect each other.

[0005] According to the embodiments of this application, the male buckle also includes a bent portion, and the latch and the hook are both connected to the male buckle seat through the bent portion. The bent portion is used to allow the latch and the hook to be flipped so as to adjust the latch and the hook to face or turn away from the female buckle.

[0006] According to an embodiment of this application, the dimension of the male buckle along the third direction is larger than the dimension of the tongue along the third direction.

[0007] According to the embodiments of this application, the opening is formed on both sides of the housing along the third direction, the second limiting tooth is provided on the female buckle seat along the second direction towards the slot side, and the third limiting tooth is provided on the housing along the second direction towards the slot side.

[0008] According to the embodiments of this application, the dimension of the female buckle along the first direction is greater than the dimension of the housing along the first direction, and / or, the dimension of the female buckle along a third direction is greater than the dimension of the housing along a third direction.

[0009] An embodiment of the second aspect of this application provides a packaging box with the latches described in any of the embodiments of the first aspect above.

[0010] According to an embodiment of this application, the packaging box includes a box body and a box lid, a male fastener is connected to one of the box lid and the box body, and a tongue is located inside the packaging box, and a female fastener is connected to the other of the box lid and the box body, and a slot is located inside the packaging box.

[0011] According to an embodiment of this application, the box lid includes a first sidewall, the first sidewall has a first clearance opening, a male buckle is connected to the first sidewall and located outside the packaging box, and a tongue passes through the first clearance opening and connects to the male buckle located outside the packaging box.

[0012] According to an embodiment of this application, a tear line is provided on the first sidewall, the tear line is located on at least a portion of the periphery of the male buckle seat, the thickness of the first sidewall at at least a portion of the tear line position is less than the thickness of the first sidewall at the position adjacent to the tear line, or, a plurality of through holes are provided at the tear line position, which are arranged sequentially along the extension direction of the tear line and penetrate the first sidewall.

[0013] According to an embodiment of this application, the box body includes a second side wall, the second side wall has a second clearance opening, the female buckle is connected to the second side wall and located outside the packaging box, and the shell passes through the second clearance opening and is connected to the female buckle located outside the packaging box.

[0014] In the embodiments of this application, the male buckle's tongue is inserted into the female buckle's slot. The locking tongue has first limiting teeth on both sides along a second direction, protruding in the direction opposite to the locking tongue. The tongue is inserted into the female buckle's slot along a first direction. The first limiting teeth pass between the second and third limiting teeth located in the female buckle's slot along the first direction. The second and third limiting teeth block the first limiting teeth to prevent the locking tongue from disengaging from the slot along the first direction. Locking hooks are located on both sides of the slot along a third direction. The locking hooks enter the slot, with the hook portions protruding in the third direction away from the locking tongue. The two hook portions hook into two openings to prevent the locking hooks from disengaging from the slot along the first direction, thus achieving a four-way locking function. This ensures that the buckle is not easily loosened or accidentally opened after being fastened, improving the packaging's security and anti-counterfeiting performance. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0016] Figure 1 This is a schematic diagram of the structure of a male buckle provided in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of another public buckle structure provided in an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the structure of a female buckle provided in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of another female buckle structure provided in an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the structure of a latch provided in an embodiment of this application;

[0021] Figure 6 This is a schematic diagram of a flipping structure of a male buckle provided in an embodiment of this application;

[0022] Figure 7 This is a schematic diagram of another flip structure of the male buckle provided in an embodiment of this application;

[0023] Figure 8 This is a schematic diagram of the structure of a packaging box provided in an embodiment of this application;

[0024] Figure 9 This is a structural schematic diagram of a packaging box and a latch provided in an embodiment of this application;

[0025] Figure 10 This is a schematic diagram of another packaging box provided in an embodiment of this application;

[0026] Figure 11 This is a partial structural diagram of a box lid provided in an embodiment of this application.

[0027] Explanation of reference numerals in the attached drawings: 10, male buckle; 20, female buckle; 100, male buckle seat; 200, latch; 210, locking tongue; 211, first limiting tooth; 212, fourth limiting tooth; 220, locking hook; 221, hook part; 230, bent part; 300, female buckle seat; 310, second limiting tooth; 400, shell; 401, first part; 402, second part; 410, slot; 420, opening; 430, third limiting tooth; 500, packaging box; 510, box lid; 511, first side wall; 512, first clearance opening; 513, tear line; 514, through hole; 520, box body; 521, second side wall; 522, second clearance opening; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0028] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0029] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] like Figures 1 to 5As shown, the first aspect of this application proposes a latch, including: a male latch 10 and a female latch 20. The male latch 10 includes a male latch seat 100 and a tongue 200. The tongue 200 includes a locking tongue 210 and locking hooks 220. One end of the locking tongue 210 along a first direction X is connected to the male latch seat 100. The other end of the locking tongue 210 along the first direction X is provided with two first limiting teeth 211, which are respectively disposed on both sides of the locking tongue 210 along a second direction Y. Two locking hooks 220 are located on both sides of the locking tongue 210 along a third direction Z. One end of the locking hook 220 along the first direction X is connected to the male latch seat 100. The other end of the locking hook 220 along the first direction X is provided with a hook portion 221, which protrudes along the third direction Z in a direction away from the locking tongue 210. The female latch 20 includes a female latch seat 300 and a housing 4. 00, the housing 400 is located on one side of the female buckle 300 along the second direction Y. The housing 400 and the female buckle 300 enclose to form a slot 410, which is used to insert the tongue 200. The slot 410 is provided with openings 420 on both sides along the third direction Z. The openings 420 are used to engage with the hook 221. The slot 410 is provided with a second limiting tooth 310 and a third limiting tooth 430. The second limiting tooth 310 and the third limiting tooth 430 are arranged opposite to each other along the second direction Y. The second limiting tooth 310 and the third limiting tooth 430 are used to insert the other end of the locking tongue 210. The second limiting tooth 310 is used to engage one of the two first limiting teeth 211, and the third limiting tooth 430 is used to engage the other of the two first limiting teeth 211. The first direction X, the second direction Y and the third direction Z intersect each other.

[0032] In this embodiment, the tongue 200 of the male buckle 10 is used to insert into the slot 410 of the female buckle 20. The latch 210 is provided with first limiting teeth 211 on both sides along the second direction Y. The first limiting teeth 211 protrude in the direction away from the latch 210 along the second direction Y. The tongue 200 is inserted into the slot 410 of the female buckle 20 along the first direction X. The first limiting teeth 211 pass through the space between the second limiting teeth 310 and the third limiting teeth 430 located in the slot 410 of the female buckle 20 along the first direction X. The second limiting teeth 310 and the third limiting teeth 430 block the first limiting teeth 211 to restrict the latch 210 from disengaging from the slot 410 along the first direction X. The locking hook 220 is located on both sides of the slot 410 along the third direction Z. The locking hook 220 enters the slot 410, and the hook part 221 of the locking hook 220 protrudes in the direction away from the locking tongue 210 along the third direction Z. The two hook parts 221 are respectively hooked into the two openings 420 to restrict the locking hook 220 from disengaging from the slot 410 along the first direction X. This enables a four-way locking function, ensuring that it is not easy to loosen or be accidentally opened after being fastened, improving the locking effect between the male buckle 10 and the female buckle 20, and improving the security and anti-counterfeiting performance of the packaging.

[0033] When the latch is used on the packaging box 500, the packaging box 500 is in the closed state. The latch is used to lock the packaging box 500 to prevent the packaging box 500 from being opened. At this time, the male latch 10 and the female latch 20 are set opposite to each other along the first direction X, and the tongue 200 is inserted into the slot 410 along the first direction X.

[0034] Optionally, the first direction X, the second direction Y, and the third direction Z are mutually perpendicular.

[0035] like Figure 6 and Figure 7 As shown, in some optional embodiments, the male buckle 10 further includes a bending portion 230, and the locking tongue 210 and the locking hook 220 are both connected to the male buckle seat 100 through the bending portion 230. The bending portion 230 is used to allow the locking tongue 210 and the locking hook 220 to be flipped to adjust the locking tongue 210 and the locking hook 220 to face or turn away from the female buckle 20.

[0036] In these optional embodiments, the bend 230 enables the latch 210 and latch hook 220 to flip, allowing them to rotate relative to the male buckle seat 100 to adjust their orientation. When the male buckle 10 and female buckle 20 are used in the packaging box 500, their orientation can be flexibly adjusted according to usage requirements, such as... Figure 7 As shown, the locking tongue 210 and locking hook 220 are moved toward the female buckle 20, and the locking tongue 210 and locking hook 220 are moved toward the female buckle 20 slot 410, so that the locking tongue 210 and locking hook can be inserted into the slot 410 to achieve the locking function. When the packaging box 500 does not contain the product or during transportation, such as Figure 6 As shown, the locking tongue 210 and locking hook 220 are bent through the bending part 230 to face away from the female buckle 20 slot 410. After the locking tongue 210 and locking hook 220 move closer to the female buckle 20, the locking tongue 210 and locking hook 220 cannot be inserted into the slot 410, thereby reducing the risk of locking of the male buckle 10 and female buckle 20. The flip-out locking tongue 210 and locking hook 220 significantly improve the applicable scenarios of the product.

[0037] Optional, such as Figure 2 The first limiting tooth 211 is provided with a plurality of fourth limiting teeth 212 along the first direction X near the male buckle seat 100. The plurality of fourth limiting teeth 212 are arranged side by side along the first direction X. At least one of the plurality of fourth limiting teeth 212 is used to engage with the second limiting tooth 310 or the third limiting tooth 430, thereby improving the locking effect between the male buckle 10 and the female buckle 20.

[0038] Optionally, the first limiting tooth 211 can be a rectangular protrusion or a polygonal protrusion structure.

[0039] like Figure 2As shown, in some optional embodiments, the dimension of the male buckle 100 along the third direction Z is greater than the dimension of the tongue 200 along the third direction Z.

[0040] In these optional embodiments, the male buckle 10 is embedded in the packaging box 500, and the tongue 200 passes through the first clearance opening 512 on the first side wall 511 of the packaging box 500 into the packaging box 500. The dimension of the male buckle seat 100 along the third direction Z is greater than the dimension of the tongue 200 along the third direction Z. The dimension of the first clearance opening 512 along the third direction Z is greater than or equal to the dimension of the tongue 200 along the third direction Z. The dimension of the male buckle seat 100 along the third direction Z is greater than the dimension of the first clearance opening 512 along the third direction Z. The size of Z prevents it from passing through the first clearance opening 512. The male buckle 100 is placed outside the packaging box 500 and fits against the first side wall 511 of the packaging box 500. The male buckle 10 is embedded in the first side wall 511 of the packaging box 500. The side of the male buckle 100 away from the tongue 200 is flat, which can improve the flatness of the packaging box 500 so that the male buckle 100 can be hidden in the first side wall 511, thereby improving the consistency of the appearance of the packaging box 500 and reducing the impact of the male buckle 10 on the appearance of the packaging box 500.

[0041] like Figure 3 As shown, in some optional embodiments, the opening 420 is formed on both sides of the housing 400 along the third direction Z, the second limiting tooth 310 is disposed on the side of the female buckle 300 facing the slot 410 along the second direction Y, and the third limiting tooth 430 is disposed on the side of the housing 400 facing the slot 410 along the second direction Y.

[0042] In these optional embodiments, the housing 400 includes a first portion 401 and a second portion 402 located on both sides of the first portion 401 along the third direction Z. The second portion 402 is connected to the first portion 401 and extends towards the second direction Y. The second portion 402 is connected to the female buckle 300. Openings 420 are formed on both sides of the second portion 402 along the third direction Z of the housing 400. The openings 420 are symmetrically distributed on both sides of the housing 400 and form a double-sided engagement with the locking hook 220 of the male buckle 10. A second limiting tooth 310 is disposed on the side of the female buckle 300 facing the housing 400 along the second direction Y and is located in the slot 410. A third limiting tooth 430 is disposed on the side of the housing 400 facing the female buckle 300 along the second direction Y and is located in the slot 410. The third limiting tooth 430 is disposed on the side of the first portion 401 facing the female buckle 300. The second limiting tooth 310 and the third limiting tooth 430 are arranged opposite each other in two directions.

[0043] Optionally, each locking hook 220 may include multiple hook portions 221, which are arranged side by side along the first direction X. The opening 420 includes multiple sub-openings 420, which are located on the housing 400 and arranged side by side along the first direction X. Each sub-opening 420 is used to engage each hook portion 221, thereby improving the locking effect of the male buckle 10 and the female buckle 20.

[0044] like Figure 3 As shown, in some optional embodiments, the female buckle 300 has a dimension along the first direction X that is larger than the housing 400 has a dimension along the first direction X.

[0045] In these optional embodiments, the female buckle 20 is embedded in the packaging box 500, and the housing 400 passes through the second clearance opening 522 on the second side wall 521 of the packaging box 500 into the packaging box 500. The dimension of the female buckle seat 300 along the first direction X is larger than the dimension of the housing 400 along the first direction X, the dimension of the second clearance opening 522 along the first direction X is greater than or equal to the dimension of the tongue 200 along the first direction X, and the dimension of the female buckle seat 300 along the first direction X is larger than the dimension of the second clearance opening 522 along the first direction X. The size of X prevents it from passing through the second clearance opening 522. The female buckle 300 is placed outside the packaging box 500 and fits against the second side wall 521 of the packaging box 500. The female buckle 20 is embedded in the second side wall 521 of the packaging box 500. The side of the female buckle 300 away from the shell 400 is flat, which can improve the flatness of the packaging box 500 so that the female buckle 300 can be hidden in the second side wall 521, thereby improving the consistency of the appearance of the packaging box 500 and reducing the impact of the female buckle 20 on the appearance of the packaging box 500.

[0046] like Figure 3 As shown, in some optional embodiments, the dimension of the female buckle 300 along the third direction Z is larger than the dimension of the housing 400 along the third direction Z.

[0047] In these optional embodiments, the female buckle 20 is embedded in the packaging box 500, and the housing 400 is inserted into the packaging box 500 through the second clearance opening 522 on the second side wall 521. The dimension of the female buckle seat 300 along the third direction Z is larger than the dimension of the housing 400 along the third direction Z. The dimension of the second clearance opening 522 along the third direction Z is greater than or equal to the dimension of the tongue 200 along the third direction Z. The size of Z prevents it from passing through the second clearance opening 522. The female buckle 300 is placed outside the packaging box 500 and fits against the second side wall 521 of the packaging box 500. The female buckle 20 is embedded in the second side wall 521 of the packaging box 500. The side of the female buckle 300 away from the shell 400 is flat, which can improve the flatness of the packaging box 500 so that the female buckle 300 can be hidden in the second side wall 521, thereby improving the consistency of the appearance of the packaging box 500 and reducing the impact of the female buckle 20 on the appearance of the packaging box 500.

[0048] like Figure 8 and Figure 9 As shown, a second aspect of this application provides a packaging box 500, including the latches in any of the embodiments of the first aspect described above.

[0049] When the packaging box 500 is closed, the male buckle 10 and the female buckle 20 are positioned opposite each other along the first direction X. The latch 200 is inserted into the slot 410 along the first direction X. The latch 210 is provided with first limiting teeth 211 on both sides along the second direction Y. The first limiting teeth 211 protrude along the second direction Y in the direction away from the latch 210. The first limiting teeth 211 pass through the space between the second limiting teeth 310 and the third limiting teeth 430 located in the slot 410 of the female buckle 20 along the first direction X. The second limiting teeth 310 and the third limiting teeth 430 block the first limiting teeth 211 to restrict the latch 210 from disengaging from the slot 410 along the first direction X. The locking hook 220 is located on both sides of the slot 410 along the third direction Z. The locking hook 220 enters the slot 410, and the hook part 221 of the locking hook 220 protrudes in the direction away from the locking tongue 210 along the third direction Z. The two hook parts 221 are respectively hooked into the two openings 420 to restrict the locking hook 220 from disengaging from the slot 410 along the first direction X. This enables a four-way locking function, ensuring that it is not easy to loosen or be accidentally opened after being fastened, thus improving the security and anti-counterfeiting performance of the packaging box 500.

[0050] The bending portion 230 enables the locking tongue 210 and locking hook 220 to have a flipping function. The locking tongue 210 and locking hook 220 can be flipped relative to the male buckle seat 100 to adjust the orientation of the locking tongue 210 and locking hook 220. When the male buckle 10 and female buckle 20 are used in the packaging box 500, the direction can be flexibly adjusted according to the usage requirements. The locking tongue 210 and locking hook 220 are moved towards the female buckle 20, and the locking tongue 210 and locking hook 220 are moved towards the female buckle 20 slot 410 so that the locking tongue 210 and locking hook can be inserted into the slot 410 to achieve the locking function. When no product is placed in the packaging box 500 or during transportation, the locking tongue 210 and locking hook 220 are bent through the bending part 230 to face away from the female buckle 20 slot 410. After the locking tongue 210 and locking hook 220 move closer to the female buckle 20, the locking tongue 210 and locking hook 220 cannot be inserted into the slot 410, thereby reducing the risk of locking of the male buckle 10 and female buckle 20. The flip-out locking tongue 210 and locking hook 220 significantly improve the applicable scenarios of the packaging box 500.

[0051] like Figure 9 As shown, in some optional embodiments, the packaging box 500 includes a box body 520 and a box lid 510, a male fastener 100 is connected to one of the box lid 510 and the box body 520, and a tongue 200 is located inside the packaging box 500, a female fastener 20 is connected to the other of the box lid 510 and the box body 520, and a slot 410 is located inside the packaging box 500.

[0052] In these alternative embodiments, Figure 9 The illustration shows an embodiment where the male buckle 10 is located on the lid 510 and the female buckle 20 is located on the box body 520. The lid 510 is used to close the box body 520 to package the product. The male buckle seat 100 is connected to either the lid 510 or the box body 520. Alternatively, the male buckle seat 100 can be connected to the lid 510 and the female buckle 20 to the box body 520. Another embodiment allows the male buckle seat 100 to be connected to the box body 520, in which case the female buckle 20 is connected to the lid 510. The tongue 200 and slot 410 are located inside the packaging box 500, providing a locking mechanism. Before the packaging box 500 is broken open, the tongue 200 and slot 410 are sealed inside and difficult to open, thus achieving an anti-counterfeiting effect.

[0053] like Figure 8 As shown, in some optional embodiments, the box cover 510 includes a first sidewall 511, the first sidewall 511 has a first clearance opening 512, the male buckle 100 is connected to the first sidewall 511 and located outside the packaging box 500, and the tongue 200 passes through the first clearance opening 512 and is connected to the male buckle 100 located outside the packaging box 500.

[0054] In these optional embodiments, the male buckle 100 is externally positioned to reduce its footprint inside the packaging box 500. The tongue 200 enters the packaging box 500 through the first clearance opening 512, connecting to the male buckle 100. The first sidewall 511 provides stable support for the male buckle 10, and the first clearance opening 512 can fix the position of the male buckle 10, ensuring a stable fit between the male buckle 10 and the female buckle 20. The packaging box 500 is covered with packaging paper, which covers the male buckle 100 to secure it. The tongue 200 is completely concealed inside the packaging box 500.

[0055] like Figure 8 and Figure 9 As shown, in some optional embodiments, the first sidewall 511 is provided with a tear line 513, which is located on at least a portion of the periphery of the male buckle seat 100, and the thickness of the first sidewall 511 at the location of at least a portion of the tear line 513 is less than the thickness of the first sidewall 511 at the location adjacent to the tear line 513.

[0056] In these optional embodiments, the first sidewall 511 is provided with a tear line 513, and the thickness of the first sidewall 511 at at least part of the tear line 513 location is less than the thickness of the first sidewall 511 at the location adjacent to the tear line 513, so that when the packaging box 500 is opened by tearing the first sidewall 511, the first sidewall 511 is easier to break at the tear line 513 location, reducing damage to the packaging or contents caused by forced opening. Figure 10 As shown, the fracture direction of the first sidewall 511 can be along the extension direction of the tear line 513, which is located on at least part of the periphery of the male buckle seat 100. The fracture extension direction of the box cover 510 avoids the male buckle seat 100, thereby reducing the overall damage to the packaging box 500 and making it easier for the packaging box 500 to be reused.

[0057] like Figure 11 As shown, in some optional embodiments, a plurality of through holes 514 are provided at the position of the tear line 513, which are arranged sequentially along the extension direction of the tear line 513, and the through holes 514 penetrate the first sidewall 511.

[0058] In these optional embodiments, a plurality of through holes 514 are arranged along the extension direction of the tear line 513. The first sidewall 511 is more easily broken at the location of the through hole 514, reducing damage to the packaging or contents caused by violent opening. The fracture direction of the first sidewall 511 can be along the arrangement direction of the through holes 514. The tear line 513 is located on at least a portion of the periphery of the male buckle seat 100, and the fracture extension direction of the box lid 510 avoids the male buckle seat 100, thereby reducing overall damage to the packaging box 500 and facilitating the reuse of the packaging box 500.

[0059] like Figure 8As shown, in some optional embodiments, the box body 520 includes a second side wall 521, the second side wall 521 has a second clearance opening 522, the female buckle 300 is connected to the second side wall 521 and is located outside the packaging box 500, and the shell 400 passes through the second clearance opening 522 and is connected to the female buckle 300 located outside the packaging box 500.

[0060] In these alternative embodiments, the second sidewall 521 corresponds to the first sidewall 511, and the first sidewall 511 and the second sidewall 521 come into contact when the lid 510 is closed on the lid body. The first sidewall 511 is located on one side of the second sidewall 521 along the first direction X. The female buckle seat 300 is externally positioned to reduce the space occupied inside the packaging box 500. The housing 400 enters the packaging box 500 through the first clearance opening 512 so that the slot 410 is located inside the packaging box 500. The housing 400 passes through the second clearance opening 522 and connects to the female buckle seat 300. The second side wall 521 provides stable support for the female buckle 20. The second clearance opening 522 can fix the position of the female buckle 20, ensuring that the male buckle 10 and the female buckle 20 can be stably engaged. When the box lid 510 is closed on the lid body, the first side wall 511 and the second side wall 521 are in contact. The first side wall 511 is located on the side of the second side wall 521 along the first direction X, so that the male buckle 10 is located on the side of the female buckle 20 along the first direction X. The outer side of the packaging box 500 is covered with packaging paper, which covers the female buckle seat 300 to fix the female buckle 20. The housing 400 is completely concealed inside the packaging box 500.

[0061] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A latch, characterized in that, include: The male buckle includes a male buckle seat and a latch. The latch includes a locking tongue and a locking hook. One end of the locking tongue along a first direction is connected to the male buckle seat. The other end of the locking tongue along the first direction is provided with two first limiting teeth. The two first limiting teeth are respectively located on both sides of the locking tongue along a second direction. The two locking hooks are located on both sides of the locking tongue along a third direction. One end of the locking hook along the first direction is connected to the male buckle seat. The other end of the locking hook along the first direction is provided with a hook portion. The hook portion protrudes in the direction away from the locking tongue along the third direction. A female buckle includes a female buckle seat and a housing. The housing is located on one side of the female buckle seat along the second direction. The housing and the female buckle seat enclose a slot for inserting the latch. The slot has openings on both sides along the third direction for engaging with the hook. The slot has a second limiting tooth and a third limiting tooth, which are arranged opposite to each other along the second direction. The space between the second limiting tooth and the third limiting tooth is for inserting the other end of the latch. The second limiting tooth engages with one of the two first limiting teeth, and the third limiting tooth engages with the other of the two first limiting teeth. The first direction, the second direction, and the third direction intersect each other.

2. The latch according to claim 1, characterized in that, The male buckle also includes a bent portion, and the latch and the hook are both connected to the male buckle seat through the bent portion. The bent portion is used to allow the latch and the hook to be flipped so that the latch and the hook face towards or away from the female buckle.

3. The latch according to claim 1, characterized in that, The dimension of the male buckle along the third direction is greater than the dimension of the tongue along the third direction.

4. The latch according to claim 1, characterized in that, The openings are formed on both sides of the housing along the third direction, the second limiting tooth is disposed on the female buckle on the side facing the slot along the second direction, and the third limiting tooth is disposed on the side of the housing facing the slot along the second direction.

5. The latch according to claim 4, characterized in that, The dimension of the female buckle along the first direction is greater than the dimension of the housing along the first direction, and / or the dimension of the female buckle along the third direction is greater than the dimension of the housing along the third direction.

6. A packaging box, characterized in that, Includes the latch as described in any one of claims 1-5.

7. The packaging box according to claim 6, characterized in that, The packaging box includes a box body and a box lid. The male buckle is connected to one of the box lid and the box body, and the tongue is located inside the packaging box. The female buckle is connected to the other of the box lid and the box body, and the slot is located inside the packaging box.

8. The packaging box according to claim 7, characterized in that, The box lid includes a first sidewall with a first clearance opening. The male buckle is connected to the first sidewall and located outside the packaging box. The tongue passes through the first clearance opening and connects to the male buckle located outside the packaging box.

9. The packaging box according to claim 8, characterized in that, The first sidewall is provided with a tear line, which is located on at least a portion of the periphery of the male buckle seat. The thickness of the first sidewall at at least a portion of the tear line position is less than the thickness of the first sidewall adjacent to the tear line position. Alternatively, the tear line position is provided with a plurality of through holes arranged sequentially along the extension direction of the tear line, and the through holes penetrate the first sidewall.

10. The packaging box according to claim 7, characterized in that, The box body includes a second side wall with a second clearance opening. The female buckle is connected to the second side wall and located outside the packaging box. The housing passes through the second clearance opening and is connected to the female buckle located outside the packaging box.

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