Snap device and storage case

Abstract

This application discloses a snap-fit ​​device and a storage box. The snap-fit ​​device includes a first structural member and a second structural member that are detachably connected. The first structural member includes a first side rib with a through snap-fit ​​hole. The snap-fit ​​hole includes a first alignment portion, a second alignment portion, and a limiting portion. On a projection plane perpendicular to the thickness direction of the first side rib, the width of the second alignment portion gradually decreases in the direction toward the limiting portion. The second structural member includes a second side rib and a snap-fit ​​portion protruding from the second side rib. The snap-fit ​​portion includes a connecting segment, a straight segment, and a diagonal segment connected in sequence. Along the thickness direction of the second side rib, the straight segment and the diagonal segment are spaced apart from the second side rib. The first distance between the diagonal segment and the second side rib gradually decreases in the direction toward the straight segment, while the second distance between the straight segment and the second side rib remains constant or gradually decreases in the direction toward the connecting segment.

Description

Technical Field

[0001] This application belongs to the field of snap-fit ​​technology, and specifically relates to a snap-fit ​​device and a storage box. Background Technology

[0002] Currently, many detachable snap-fit ​​devices are plug-in type, meaning that a snap-fit ​​part is inserted and snapped into a snap-fit ​​hole, enabling detachable assembly. However, the snap-fit ​​holes in existing technologies are mostly racetrack-shaped, which is not convenient for snap-fit ​​alignment, resulting in low assembly efficiency. If the snap-fit ​​hole is made larger to facilitate snap-fit ​​alignment, loosening may occur after assembly. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a snap-fit ​​device that can improve the assembly efficiency of inserting the snap-fit ​​part into the snap-fit ​​hole and improve the stability in the assembled state.

[0004] This application provides a snap-fit ​​device, including a detachably connected first structural member and a second structural member. The first structural member includes a first side rib with a through-hole. The snap-fit ​​hole includes a first alignment portion, a second alignment portion, and a limiting portion. The second alignment portion is located between the first alignment portion and the limiting portion, and connects the first alignment portion and the limiting portion. On a projection plane perpendicular to the thickness direction of the first side rib, the width of the second alignment portion gradually decreases towards the limiting portion. The second structural member includes a second side rib and a snap-fit ​​portion protruding from the second side rib. The snap-fit ​​portion includes a connecting segment, a straight segment, and a diagonal segment connected sequentially. The end of the connecting segment away from the straight segment is connected to the second side rib. Along the thickness direction of the second side rib, the straight segment and the diagonal segment are spaced apart from the second side rib. A first distance between the diagonal segment and the second side rib gradually decreases towards the straight segment, and a second distance between the straight segment and the second side rib remains constant or gradually decreases towards the connecting segment. The buckling device has an assembled state. When the buckling device is in the assembled state, the first side rib and the second side rib abut against each other. A portion of the connecting section is located in the snap-fit ​​hole and abuts against the side wall and / or bottom wall of the limiting part. The straight segment and the oblique segment are located on the side of the first side rib away from the second side rib, and the straight segment abuts against the first side rib.

[0005] In some embodiments of this application, the sidewall of the first alignment portion is arc-shaped on the projection plane perpendicular to the thickness direction of the first side rib.

[0006] In some embodiments of this application, on the projection plane perpendicular to the thickness direction of the first side rib, the angle between the sidewall of the second aligning portion and the length direction of the first side rib is α, where 3°≤α≤7°.

[0007] In some embodiments of this application, on the projection plane perpendicular to the thickness direction of the first side rib, the angle between the sidewall of the limiting part and the length direction of the first side rib is b, where 0°≤b≤2°.

[0008] In some embodiments of this application, the first side rib is provided with a plurality of snap-fit ​​holes, which are arranged along the length direction of the first side rib; the second side rib is provided with a plurality of snap-fit ​​parts, which are arranged along the length direction of the second side rib; when the buckle device is in the assembled state, one snap-fit ​​part is inserted into one snap-fit ​​hole.

[0009] In some embodiments of this application, the length of the snap-fit ​​portion is less than the length of the snap-fit ​​hole; the snap-fit ​​portion can be inserted into the snap-fit ​​hole along the thickness direction of the first side rib, and after being inserted into the snap-fit ​​hole, it moves relative to the snap-fit ​​hole along the length direction of the first side rib toward the bottom of the limiting portion until the connecting segment contacts and connects to the bottom of the limiting portion.

[0010] In some embodiments of this application, the first structural member includes two first side ribs and a first base plate, the two first side ribs being arranged parallel to each other at a distance from the first base plate, and the distance between the two first side ribs is defined as a first distance; the second structural member includes two second side ribs and a second base plate, the two second side ribs being arranged parallel to each other at a distance from the second base plate, and the width of the second structural member is defined as a second distance along the arrangement direction of the two second side ribs, the second distance being less than the first distance; the buckling device has a retracted state, when the buckling device is in the retracted state, the second structural member is embedded in the accommodating space between the two first side ribs, and the second structural member abuts against the first base plate.

[0011] In some embodiments of this application, the first structural member further includes a first reinforcing rib, which is disposed on the first base plate. The extension direction of the first reinforcing rib is perpendicular to the length direction of the first side rib, and the first reinforcing rib is provided with two first notches. When the buckling device is in the retracted state, one second side rib is inserted into one of the first notches, and the other second side rib is inserted into the other first notch.

[0012] In some embodiments of this application, the first structural member further includes a second reinforcing rib. Along the length direction of the first side rib, the first reinforcing rib and the second reinforcing rib are respectively disposed at both ends of the first base plate. When the buckling device is in the storage state, a portion of the second structural member is located within the accommodating space enclosed by the first reinforcing rib, the second reinforcing rib, and the two first side ribs, and abuts against the second reinforcing rib.

[0013] In some embodiments of this application, the first structural member further includes a third reinforcing rib, which is disposed on the first base plate and extends perpendicularly to the length direction of the first side rib; each of the second side ribs is provided with a second notch; when the buckling device is in the retracted state, a portion of the third reinforcing rib is inserted into one of the second notches and a portion of the third reinforcing rib is inserted into the other second notch.

[0014] Embodiments of this application also provide a storage box, including the snap-fit ​​device described in any of the foregoing embodiments.

[0015] In some embodiments of this application, the storage box includes two first structural members and two second structural members, the two first structural members are spaced apart, the two second structural members are located between the two first structural members, and the two ends of each second structural member are respectively snapped into the two first structural members.

[0016] In summary, in the snap-fit ​​device of this application, the snap-fit ​​hole on the first structural member has multiple parts with different shapes, namely a first alignment part, a second alignment part, and a limiting part. The widths of the first and second alignment parts are greater than the limiting part. The first and second alignment parts are used for inserting the snap-fit ​​part, while the limiting part is used to snap and limit the snap-fit ​​part on the second structural member in the assembled state. Furthermore, the width of the second alignment part gradually decreases in the direction towards the limiting part. The second alignment part not only facilitates the insertion of the snap-fit ​​part but also guides the snap-fit ​​sliding of the snap-fit ​​part, thereby improving the efficiency of inserting the snap-fit ​​part into the snap-fit ​​hole and increasing the assembly efficiency of the snap-fit ​​device. In addition, the smaller width of the limiting part, used to clamp and limit the snap-fit ​​part, helps improve the structural stability of the snap-fit ​​device in the assembled state and reduces the risk of relative wobbling between the first and second structural members. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the buckle device in an assembled state in one embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the buckling device in a disassembled state in one embodiment of this application.

[0019] Figure 3 This is a partial structural schematic diagram of the snap-fit ​​hole area on the first side rib in one embodiment of this application.

[0020] Figure 4 This is a partial structural diagram of the snap-fit ​​area on the second side rib in one embodiment of this application.

[0021] Figure 5 This is a partial structural diagram of the assembly process of the first and second structural components in one embodiment of this application. At this time, the snap-fit ​​part and the snap-fit ​​hole are opposite to each other but have not yet been inserted.

[0022] Figure 6 This is a partial structural diagram of the assembly process of the first and second structural components in one embodiment of this application, at which time the snap-fit ​​portion is inserted into the second alignment portion region of the snap-fit ​​hole.

[0023] Figure 7 yes Figure 6 Another view of the structure shown.

[0024] Figure 8 This is a partial structural diagram of the assembly process of the first and second structural components in one embodiment of this application, where the connecting part of the snap-fit ​​portion is inserted into the limiting part area of ​​the snap-fit ​​hole.

[0025] Figure 9 yes Figure 8 Another view of the structure shown.

[0026] Figure 10 This is a schematic diagram of the buckle device in a stowed state in one embodiment of this application.

[0027] Figure 11 yes Figure 10 Exploded view of the structure shown.

[0028] Figure 12 yes Figure 11 Another view of the structure shown.

[0029] Figure 13 This is a partial structural diagram of the buckle device in a stowed state in one embodiment of this application.

[0030] Figure 14 This is a schematic diagram of the structure of the storage box in one embodiment of this application.

[0031] Figure 15 yes Figure 14 Exploded view of the structure shown.

[0032] Figure Labels

[0033] 100 latching devices

[0034] First structural component 10

[0035] First lateral rib 1

[0036] 12-pin connector

[0037] First alignment section 121

[0038] Second alignment part 122

[0039] Limiting part 123

[0040] First base plate 13

[0041] First reinforcing rib 141

[0042] First gap section 1411

[0043] Second reinforcing rib 142

[0044] Third reinforcing rib 143

[0045] Storage space 15

[0046] Second structural component 20

[0047] Second lateral rib 21

[0048] Second gap 211

[0049] Connector 22

[0050] Connector 221

[0051] straight segment 222

[0052] Diagonal segment 223

[0053] Second base plate 23

[0054] Storage box 200

[0055] First direction X

[0056] Second direction Y

[0057] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0058] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0059] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have a component that is centrally located. When a component is considered to be "set" on another component, it can be directly set on the other component or may also have a component that is centrally located.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0061] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0062] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Where there is no conflict, the various embodiments in this application can be combined with each other.

[0063] It should be noted that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative examples and should not constitute any limitation on this application.

[0064] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0065] like Figures 1 to 4 As shown, an embodiment of this application provides a snap-fit ​​device 100, including a first structural member 10 and a second structural member 20 that are detachably connected. When the snap-fit ​​device 100 is in an assembled state, the first structural member 10 and the second structural member 20 are stably snapped together. At this time, the snap-fit ​​device 100 can be used to accommodate or store other items, or can be used as part of a storage device (such as a storage box 200).

[0066] In one embodiment, the first structural member 10 includes a first side rib 11 and a first base plate 13 connected to each other, with the first side rib 11 located at the edge region of the first base plate 13. The second structural member 20 includes a second side rib 21 and a second base plate 23 connected to each other, with the second side rib 21 located at the edge region of the second base plate 23. When the snap-fit ​​device 100 is in the assembled state, the first structural member 10 and the second structural member 20 are snapped together by the first side rib 11 and the second side rib 21, thereby achieving a stable connection.

[0067] In one embodiment, the first side rib 11 is provided with a through snap-fit ​​hole 12, and the second side rib 21 is provided with a snap-fit ​​part 22. When the snap-fit ​​device 100 is in the assembled state, the first side rib 11 and the second side rib 21 abut against each other, and the snap-fit ​​part 22 is inserted into and snapped into the snap-fit ​​hole 12, so that the relative movement between the first structural member 10 and the second structural member 20 is restricted.

[0068] Furthermore, the snap-fit ​​hole 12 includes a second alignment portion 122 and a limiting portion 123, which are connected to each other along the length direction of the first side rib 11 (hereinafter referred to as the first direction X). Also, on a projection plane perpendicular to the thickness direction of the first side rib 11, the width of each portion of the second alignment portion 122 gradually decreases in the direction toward the limiting portion 123.

[0069] The snap-fit ​​portion 22 includes a connecting segment 221, a straight segment 222, and a diagonal segment 223 connected in sequence. The end of the connecting segment 221 away from the straight segment 222 is connected to the second side rib 21. The connecting segment 221, the straight segment 222, and the diagonal segment 223 are arranged along the length direction of the second side rib 21 (hereinafter referred to as the second direction Y). Along the thickness direction of the second side rib 21, the straight segment 222 and the diagonal segment 223 are spaced apart from the second side rib 21. The first distance between each part of the diagonal segment 223 and the second side rib 21 gradually decreases in the direction toward the straight segment 222, while the second distance between each part of the straight segment 222 and the second side rib 21 remains unchanged or gradually decreases in the direction toward the connecting segment 221.

[0070] like Figures 3 to 9As shown, when the snap-fit ​​device 100 needs to be assembled, the snap-fit ​​portion 22 on the second side rib 21 can be aligned with and close to the snap-fit ​​hole 12 on the first side rib 11. At least a portion of the connecting segment 221, the straight segment 222, and the oblique segment 223 is inserted into the snap-fit ​​hole 12 through the second alignment portion 122. After at least a portion of the oblique segment 223 moves to the side of the first side rib 11 away from the second side rib 21, the second side rib 21 is moved relative to the first side rib 11 or the second side rib 21 along the length direction of the first side rib 11 or the second side rib 21, so that the connecting portion faces the limiting portion 12. During the bottom movement of component 3, if the inclined surface of the inclined segment 223 contacts the limiting part 123, the inclined segment 223 can guide the relative movement between the first structural member 10 and the second structural member 20 along the thickness direction of the first side rib 11 or the second side rib 21. If the engaging part 22 contacts the side wall of the second aligning part 122, the second aligning part 122 can guide the relative movement between the first structural member 10 and the second structural member 20 along the width direction of the first side rib 11 or the second side rib 21, so that the first structural member 10 and the second structural member 20 are engaged in place. The process of disassembling the buckle device 100 is the reverse of the assembly process, and will not be described again in this application.

[0071] When the latching device 100 is in the assembled state, the first side rib 11 and the second side rib 21 abut against each other along the thickness direction, and the first direction X and the second direction Y are parallel to each other. A portion of the connecting section 221 is located in the latching hole 12 and abuts against the side wall and / or bottom wall of the limiting part 123. The straight section 222 and the oblique section 223 are located on the side of the first side rib 11 away from the second side rib 21, and the straight section 222 abuts against the first side rib 11. In this state, the opposite side walls of the limiting part 123 clamp and limit the connecting section 221, thereby restricting the relative movement of the first structural member 10 and the second structural member along the width direction of the first side rib 11 or the second side rib 21. The abutment between the connecting section 221 and the bottom wall of the limiting part 123 restricts the relative movement of the first structural member 10 and the second structural member 20 along the length direction of the first side rib 11 or the second side rib 21, ensuring the stability of the latching device 100 in the assembled state.

[0072] Furthermore, when assembling the snap-fit ​​device 100, the guide of the oblique segment 223 and the guide of the second alignment portion 122 engage with each other, which will greatly improve the efficiency of the first structural member 10 and the second structural member 20 engaging with each other, and improve the assembly efficiency of the snap-fit ​​device 100.

[0073] In one embodiment, on the projection plane perpendicular to the thickness direction of the first side rib 11, the angle between the side wall of the second alignment portion 122 and the first direction X is α, where 3°≤α≤7°. In this embodiment, the side wall of the second alignment portion 122 is inclined, which can better play a guiding role to guide the connecting portion of the snap-fit ​​portion 22 into the limiting portion 123.

[0074] In one embodiment, the included angle α is any one of 3°, 4°, 5°, 6° and 7°.

[0075] In one embodiment, the width of the end of the second alignment portion 122 near the limiting portion 123 is 2 mm, and the width of the end away from the limiting portion 123 is 6 mm.

[0076] In one embodiment, on the projection plane perpendicular to the thickness direction of the first side rib 11, the angle between the sidewall of the limiting part 123 and the first direction X is b, where 0°≤b≤2°. In this embodiment, the sidewall of the limiting part 123 and the first direction X are approximately parallel, which is used to engage and limit the connecting part. This helps to improve the stability of the mutual engagement and limiting between the limiting part 123 and the connecting part, improves the stability of the buckling device 100 in the assembled state, and reduces the risk of relative wobbling between the first structural member 10 and the second structural member 20.

[0077] In one embodiment, the included angle b is any one of 0°, 1° and 2°.

[0078] In one embodiment, the snap-fit ​​hole 12 further includes a first alignment portion 121, which is located along a first direction X on the side of the second side rib 21 opposite to the limiting portion 123, and is connected to a second alignment portion 122. The first alignment portion 121 and the second alignment portion 122 are connected to each other, and together they form a wider hole for the snap-fit ​​portion 22 to be inserted, which facilitates the snap-fit ​​portion 22 to be inserted into the snap-fit ​​hole 12 and improves the efficiency of the snap-fit ​​portion 22 and the snap-fit ​​hole 12.

[0079] In one embodiment, the total length of the first alignment portion 121 and the second alignment portion 122 along the first direction X is greater than or equal to the total length of the snap-fit ​​portion 22 along the second direction Y, which facilitates the snap-fit ​​portion 22 to be inserted into the snap-fit ​​hole 12 and improves the efficiency of the snap-fit ​​portion 22 and the snap-fit ​​hole 12.

[0080] In one embodiment, when the snap-fit ​​hole 12 includes only the second alignment portion 122 and the limiting portion 123, but does not include the first alignment portion 121 (not shown), the total length of the second alignment portion 122 along the first direction X is greater than or equal to the total length of the snap-fit ​​portion 22 along the second direction Y, which facilitates the snap-fit ​​portion 22 to be inserted into the snap-fit ​​hole 12 and improves the efficiency of the snap-fit ​​portion 22 and the snap-fit ​​hole 12 to be connected.

[0081] As an example, the following description will take the snap-fit ​​portion 22, which includes a first alignment portion 121, a second alignment portion 122, and a limiting portion 123, as an example.

[0082] In one embodiment, on a projection plane perpendicular to the thickness direction of the first side rib 11, the sidewall of the first alignment portion 121 is arc-shaped, and the two ends of the arc are respectively connected to the opposite sidewalls of the second alignment portion 122. The shape of the first alignment portion 121 not only facilitates the processing and manufacturing of the snap-fit ​​hole 12, but also helps to reduce stress concentration on the sidewall of the snap-fit ​​hole 12 and improve the structural strength of the first side rib 11.

[0083] In one embodiment, when the latching device 100 is in the assembled state, the two opposite sides of the connecting section 221 abut against the two side walls of the limiting part 123, which helps to reduce the risk of relative swaying of the first structural member 10 and the second structural member 20 along the width direction of the first side rib 11 or the second side rib 21, and improves the stability of the latching device 100 in the assembled state.

[0084] In one embodiment, the width of the limiting part 123 is 2 mm and the thickness of the connecting section 221 is 2 mm.

[0085] In one embodiment, when the snap-fit ​​device 100 is in the assembled state, the side of the straight segment 222 facing the second side rib 21 and the side of the first side rib 11 are in surface contact, which helps to reduce the risk of relative wobbling of the first structural member 10 and the second structural member 20 along the thickness direction of the first side rib 11 or the second side rib 21, and improves the stability of the snap-fit ​​device 100 in the assembled state.

[0086] In one embodiment, the thickness of the first side rib 11 is 2.3 mm, and the minimum distance between the straight segment 222 and the second side rib 21 is 2.3 mm.

[0087] like Figure 1 and Figure 2 As shown, in one embodiment, the first side rib 11 is provided with a plurality of snap-fit ​​holes 12, which are arranged along a first direction X. The second side rib 21 is provided with a plurality of snap-fit ​​parts 22, which are arranged along a second direction Y. When the buckling device 100 is in the assembled state, one snap-fit ​​part 22 is inserted into one snap-fit ​​hole 12, and the plurality of snap-fit ​​parts 22 are correspondingly inserted into different snap-fit ​​holes 12, which helps to further improve the structural stability of the buckling device 100 in the assembled state.

[0088] like Figures 10 to 13 As shown, in one embodiment, the latching device 100 also has a retracted state. When the latching device 100 is in the retracted state, the first structural member 10 and the second structural member 20 are stacked together, and the latching device 100 occupies a small volume, which is convenient for transportation and storage.

[0089] In one embodiment, the first structural member 10 includes two first side ribs 11 and a first base plate 13, with the two first side ribs 11 arranged parallel to each other at a distance from each other on the first base plate 13. The distance between the two first side ribs 11 is defined as a first distance.

[0090] The second structural member 20 includes two second side ribs 21 and a second base plate 23. The two second side ribs 21 are arranged parallel to each other at intervals on the second base plate 23. Along the arrangement direction of the two second side ribs 21, the total width of the second structural member 20 is defined as a second distance, which is less than a first distance.

[0091] When the latching device 100 is in the retracted state, the second structural member 20 is embedded in the accommodating space 15 between the two first side ribs 11, and the second structural member 20 abuts against the first base plate 13. The second structural member 20 and the first structural member 10 form a retracted state by nesting with each other, which can reduce the total thickness of the latching device 100 in the retracted state, reduce the space occupied by the latching device 100, and facilitate transportation and storage.

[0092] In existing embodiments, when the latching device 100 is in a retracted state, its total thickness is generally the sum of the thicknesses of the first structural member 10 and the second structural member 20, that is, the sum of the thicknesses of the first base plate 13, the first side rib 11, the second base plate 23, and the second side rib 21. In this embodiment, the retracted state is formed by nesting, at which point the total thickness of the latching device 100 can be the sum of the thicknesses of the second structural member 20 and the first base plate 13, which greatly reduces the space occupied by the latching device 100.

[0093] In one embodiment, when the latching device 100 is in the retracted state, the second base plate 23 may abut against the first base plate 13, or the second side rib 21 may abut against the first base plate 13.

[0094] In one embodiment, the first structural member 10 further includes a first reinforcing rib 141, which is disposed on the first base plate 13. By providing the first reinforcing rib 141, the structural strength of the first structural member 10 is improved, and the risk of deformation of the first structural member 10 is reduced.

[0095] In one embodiment, the extension direction of the first reinforcing rib 141 is perpendicular to the first direction X.

[0096] In one embodiment, the first reinforcing rib 141 is provided with two first notches 1411. When the latching device 100 is in the retracted state, one second side rib 21 is inserted into one first notch 1411, and the other second side rib 21 is inserted into the other first notch 1411. By providing the first notches 1411 on the first reinforcing rib 141 to accommodate the second side rib 21 in the retracted state, it is beneficial to avoid interference of the first reinforcing rib 141 with the second structural member 20. Furthermore, the cooperation between the first notches 1411 and the second side rib 21 can also play a clamping and limiting role, improving the stability of the latching device 100 in the retracted state.

[0097] In one embodiment, the first structural member 10 further includes a second reinforcing rib 142. Along the first direction X, the first reinforcing rib 141 and the second reinforcing rib 142 are respectively disposed at both ends of the first base plate 13, and the extending direction of the second reinforcing rib 142 is perpendicular to the first direction X. By providing the second reinforcing rib 142, it is beneficial to further improve the structural strength of the first structural member 10 and reduce the risk of deformation of the first structural member 10.

[0098] In one embodiment, when the latching device 100 is in the retracted state, a portion of the second structural member 20 is located within the accommodating space 15 enclosed by the first reinforcing rib 141, the second reinforcing rib 142, and the two first side ribs 11, and abuts against the second reinforcing rib 142 along the first direction X. In other embodiments, the second structural member 20 may also be separated from the second reinforcing rib 142 along the first direction X.

[0099] In one embodiment, the first structural member 10 further includes a third reinforcing rib 143, which is disposed on the first base plate 13 and extends in a direction perpendicular to the first direction X.

[0100] Furthermore, each of the second side ribs 21 is provided with a second notch 211. When the latching device 100 is in the retracted state, a portion of the third reinforcing rib 143 is inserted into one second notch 211, and a portion of the third reinforcing rib 143 is inserted into the other second notch 211. This embodiment not only helps to avoid interference of the third reinforcing rib 143 with the second structural member 20, but also the cooperation between the second notch 211 and the third reinforcing rib 143 can play a clamping and limiting role, improving the stability of the latching device 100 in the retracted state.

[0101] In one embodiment, at least one reinforcing rib may also be provided on the second structural member 20 to enhance the structural rigidity of the second structural member 20, which will not be described in detail in this application.

[0102] In summary, in the snap-fit ​​device 100 of this application, the snap-fit ​​hole 12 on the first structural member 10 has multiple parts with different shapes, namely, a first alignment part 121, a second alignment part 122, and a limiting part 123. The width of the first alignment part 121 and the second alignment part 122 is greater than that of the limiting part 123. The first alignment part 121 and the second alignment part 122 are used for the snap-fit ​​part 22 to be inserted. The limiting part 123 is used to snap and limit the snap-fit ​​part 22 on the second structural member 20 in the assembled state. The width of the second alignment part 122 gradually decreases in the direction toward the limiting part 123. The second alignment part 122 not only facilitates the insertion of the snap-fit ​​part 22, but also guides the snap-fit ​​sliding of the snap-fit ​​part 22, which is beneficial to improving the efficiency of the snap-fit ​​part 22 being inserted into the snap-fit ​​hole 12 and improving the assembly efficiency of the snap-fit ​​device 100.

[0103] like Figure 14 and Figure 15 As shown, embodiments of this application also provide a storage box 200, including the snap-fit ​​device 100 described in any of the foregoing embodiments, so that the storage box 200 has an assembled state and a stored state, which is beneficial to improving the assembly and disassembly efficiency of the storage box 200 and reducing the volume occupied by it in the stored state.

[0104] In one embodiment, the storage box 200 includes two first structural members 10 and two second structural members 20. The two first structural members 10 are spaced apart, and the two second structural members 20 are located between the two first structural members 10. The two ends of each second structural member 20 are respectively snapped into the two first structural members 10. When the two first structural members 10 and the two second structural members 20 are sequentially snapped together, they form an enclosed structure, and the space therein can be used to accommodate or store other items.

[0105] In one embodiment, the storage box 200 can be used to hold miscellaneous items or to hold soil for use as a cultivation box. The storage box 200 has a variety of uses, and this application will not elaborate on its specific uses.

[0106] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be covered within the scope of this application.

Claims

1. A latching device, characterized in that, Includes a first structural component and a second structural component that can be detachably connected; The first structural member includes a first side rib, and a through snap-fit ​​hole is provided on the first side rib. The snap-fit ​​hole includes a first alignment part, a second alignment part, and a limiting part. The second alignment part is located between the first alignment part and the limiting part, and connects the first alignment part and the limiting part. On the projection plane perpendicular to the thickness direction of the first side rib, the width of the second alignment portion gradually decreases in the direction toward the limiting portion; The second structural member includes a second side rib and a snap-fit ​​portion protruding from the second side rib. The snap-fit ​​portion includes a connecting segment, a straight segment, and an oblique segment connected in sequence. The end of the connecting segment away from the straight segment is connected to the second side rib. Along the thickness direction of the second side rib, both the straight segment and the oblique segment are spaced apart from the second side rib. The first distance between the oblique segment and the second side rib gradually decreases in the direction toward the straight segment, and the second distance between the straight segment and the second side rib remains unchanged or gradually decreases in the direction toward the connecting segment. The buckling device has an assembled state. When the buckling device is in the assembled state, the first side rib and the second side rib abut against each other. A portion of the connecting section is located in the snap-fit ​​hole and abuts against the side wall and / or bottom wall of the limiting part. The straight segment and the oblique segment are located on the side of the first side rib away from the second side rib, and the straight segment abuts against the first side rib.

2. The latching device as described in claim 1, characterized in that, On a projection plane perpendicular to the thickness direction of the first side rib, the sidewall of the first aligning portion is arc-shaped; and / or, On the projection plane perpendicular to the thickness direction of the first side rib, the angle between the side wall of the second aligning part and the length direction of the first side rib is α, where 3°≤a≤7°. On the projection plane perpendicular to the thickness direction of the first side rib, the angle between the side wall of the limiting part and the length direction of the first side rib is b, where 0°≤b≤2°.

3. The latching device as described in claim 1, characterized in that, The first side rib is provided with a plurality of snap-fit ​​holes, which are arranged along the length direction of the first side rib; The second side rib is provided with a plurality of the aforementioned snap-fit ​​parts, which are arranged along the length direction of the second side rib. When the buckle device is in the assembled state, one of the snap-fit ​​parts is inserted into one of the snap-fit ​​holes.

4. The latching device as described in claim 1, characterized in that, The length of the snap-fit ​​portion is less than the length of the snap-fit ​​hole; The snap-fit ​​portion can be inserted into the snap-fit ​​hole along the thickness direction of the first side rib, and after being inserted into the snap-fit ​​hole, it moves relative to the snap-fit ​​hole along the length direction of the first side rib toward the bottom of the limiting portion until the connecting segment contacts and connects to the bottom of the limiting portion.

5. The latching device as described in any one of claims 1 to 4, characterized in that, The first structural member includes two first side ribs and a first base plate. The two first side ribs are arranged parallel to each other at intervals on the first base plate, and the distance between the two first side ribs is defined as a first distance. The second structural member includes two second side ribs and a second base plate. The two second side ribs are arranged parallel to each other at intervals on the second base plate. The width of the second structural member is defined as a second distance along the arrangement direction of the two second side ribs. The second distance is less than the first distance. The buckle device has a retracted state. When the buckle device is in the retracted state, the second structural member is embedded in the accommodating space between the two first side ribs, and the second structural member abuts against the first base plate.

6. The snap-fit ​​device as described in claim 5, characterized in that, The first structural member further includes a first reinforcing rib, which is disposed on the first base plate. The extension direction of the first reinforcing rib is perpendicular to the length direction of the first side rib, and the first reinforcing rib is provided with two first notches. When the latching device is in the retracted state, one second side rib is inserted into one of the first notches, and the other second side rib is inserted into the other first notch.

7. The latching device as described in claim 6, characterized in that, The first structural member further includes a second reinforcing rib, and the first reinforcing rib and the second reinforcing rib are respectively disposed at both ends of the first base plate along the length direction of the first side rib; When the buckle device is in the retracted state, part of the second structural member is located within the accommodating space enclosed by the first reinforcing rib, the second reinforcing rib, and the two first side ribs, and abuts against the second reinforcing rib.

8. The latching device as described in claim 5, characterized in that, The first structural member further includes a third reinforcing rib, which is disposed on the first base plate and extends perpendicularly to the length direction of the first side rib. Each of the second side ribs is provided with a second notch; When the buckle device is in the retracted state, a portion of the third reinforcing rib is inserted into one of the second notches, and a portion of the third reinforcing rib is inserted into the other of the second notches.

9. A storage box, characterized in that, Includes the latching device as described in any one of claims 1 to 8.

10. The storage box as described in claim 9, characterized in that, The storage box includes two first structural members and two second structural members. The two first structural members are spaced apart, and the two second structural members are located between the two first structural members. The two ends of each second structural member are respectively snapped into the two first structural members.

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