Cover frame and storage box of storage box

Abstract

A cover frame of a storage box is provided. The storage box further comprises a box body. The box body comprises a side wall having opposite first and second wall edges. The cover frame comprises a frame body. The frame body comprises an inner wall and an outer wall. The outer wall is located outside the inner wall, and a plug-in slot is formed between the outer wall and the inner wall. The plug-in slot has a slot opening for the first wall edge to be inserted into the plug-in slot. The first wall edge is provided with a bending portion bent inward and toward the second wall edge, and the inner wall is provided with a clamping portion protruding toward the outer wall. Alternatively, the first wall edge is provided with a bending portion bent outward and toward the second wall edge, and the outer wall is provided with a clamping portion protruding toward the inner wall. The side of the clamping portion away from the slot opening is provided with a first side surface. The first side surface can abut against the bending portion to limit the first wall edge from exiting the slot opening. The first side surface is gradually inclined toward the slot opening from the bottom end of the clamping portion to the top end thereof. In this way, when the box body and the cover frame are disassembled, the bending portion will slide out of the clamping portion under the guidance of the first side surface, avoiding damage to the bending portion.

Description

Technical Field

[0001] This disclosure relates to the field of household goods technology, specifically to a lid frame and a storage box. Background Technology

[0002] In daily life, storage boxes are widely used for storing shoes, clothing, and other items. Traditionally, storage boxes are typically made of folded sheet material with protruding snap-fit ​​structures at the opening edge. These structures work in conjunction with corresponding slots on the lid to secure the box to the cover. However, during disassembly, the protruding snap-fit ​​joints are prone to deformation, breakage, or surface damage due to concentrated stress. This weakens the clamping force between the snap-fit ​​structure and the slots, causing the lid to loosen unexpectedly and affecting the storage box's lifespan. Utility Model Content

[0003] In view of this, the present disclosure provides a cover frame and a storage box for a storage box, so as to at least solve or improve the problem that the snap-fit ​​structure on the box body of the previous storage box is easily damaged.

[0004] On the one hand, this disclosure provides a lid frame for a storage box.

[0005] The storage box also includes a box body. The box body includes side walls, each having a first and a second opposing edge. The lid frame includes a frame. The frame includes an inner wall and an outer wall. The outer wall is located outside the inner wall, and an insertion groove is formed between the outer wall and the inner wall. The insertion groove has an opening for the first edge to be inserted into. The first edge has a bend that bends inward and towards a second edge, and the inner wall has a locking portion that protrudes towards the outer wall. Alternatively, the first edge has a bend that bends outward and towards a second edge, and the outer wall has a locking portion that protrudes towards the inner wall. The locking portion has a first side surface on the side opposite to the opening. The first side surface abuts against the bend to restrict the first edge from exiting the opening. The first side surface gradually slopes towards the opening from the bottom to the top of the locking portion.

[0006] According to the above structure, during the assembly of the box body and the cover frame, the bent portion of the first wall edge of the box body can abut against the first side of the engaging portion of the cover frame and restrict the first wall edge from exiting the slot, effectively preventing the cover frame from accidentally loosening and ensuring a stable and reliable connection between the box body and the cover frame. Furthermore, the first side has a structure that gradually slopes towards the slot from the bottom to the top of the engaging portion. This allows the bent portion to slide along the inclined first side and disengage from the engaging portion during the disassembly of the box body and the cover frame, effectively preventing hard jamming or forced pulling, thereby preventing damage to the bent portion.

[0007] Alternatively or supplementarily, the angle between the first side and the one in which the inner wall and the outer wall are provided with the engaging part is α, where 110°≤α≤160°.

[0008] If α is too small, meaning the angle α between the first side and the inner or outer wall is less than 110°, the first side cannot provide an effective transition surface to guide the bending part when the first wall edge needs to exit the slot. This results in a large compressive force between the bending part and the first side, which can easily lead to deformation or breakage of the bending part. If α is too large, meaning the angle α between the first side and the inner or outer wall is greater than 160°, the abutment between the first side and the bending part will be weakened when the first wall edge is inserted into the slot. This cannot effectively restrict the first wall edge from exiting the slot, resulting in a loose connection between the cover frame and the box body, which can easily lead to accidental loosening. Therefore, within the reasonable range of 110°≤α≤160°, not only can the bending part abut against the engaging part and effectively restrict the first wall edge from exiting the slot, but the first side can also provide an effective transition surface to guide the bending part when the first wall edge needs to exit the slot, reducing the risk of damage to the bending part.

[0009] Alternatively or supplementally, the engaging part has a second side surface on the side facing the slot, and the second side surface gradually slopes from the bottom end to the top end of the engaging part toward the side opposite to the slot.

[0010] The second side has a structure that slopes backwards from the bottom end of the engaging part to its top end. This allows the bent part of the first wall edge to smoothly enter the insertion groove under the guidance of the second side when it is inserted into the insertion groove from the groove. This reduces the resistance when the first wall edge is inserted and facilitates the quick installation of the box and cover frame.

[0011] Alternatively or supplementarily, the angle between the second side and the one in which the inner wall and the outer wall are provided with a locking part is β, where 20°≤β≤80°.

[0012] If β is too small, meaning the angle between the second side and the inner or outer wall is less than 20°, the second side, given a fixed first side, will have an excessively large sloping structure. This will increase the size and material usage of the inner or outer wall, resulting in structural redundancy and material waste. If β is too large, meaning the angle between the second side and the inner or outer wall is greater than 80°, the second side will not provide an effective transition surface to guide the bending portion when the first wall edge is inserted into the slot, leading to increased resistance when the first wall edge is inserted into the slot. Therefore, within the reasonable range of 20°≤β≤80°, it is possible to ensure that the second side provides an effective transition surface to guide the bending portion, reducing the resistance when the first wall edge is inserted into the slot, while also improving material utilization.

[0013] Alternatively or supplementally, the width of the engaging portion gradually decreases from its bottom end to its top end.

[0014] Based on the above structure, the engaging part adopts a wedge-shaped structure with its width gradually decreasing towards the top. During the disassembly of the box and the cover frame, the contact area between the bent part and the engaging part gradually decreases, thereby reducing the frictional resistance between the bent part and the engaging part, avoiding local stress concentration, and effectively reducing the risk of structural damage to the bent part due to jamming or compression, ensuring that the bent part smoothly exits the slot. In addition, the wider bottom end can enhance the structural strength of the engaging part, ensuring that it can effectively restrict the first wall edge from exiting the slot when it abuts against the bent part.

[0015] As a supplement or alternative, the distance between the inner and outer walls gradually increases as it approaches the opening of the groove.

[0016] Based on the above structure, during the assembly of the box body and the cover frame, the bent portion of the first wall edge of the box body can be guided accurately and smoothly into the insertion slot, reducing the difficulty of assembly and improving the convenience of the assembly operation between the box body and the cover frame. In addition, the larger slot can provide greater tolerance space, allowing the first wall edge to still enter smoothly with a certain angular deviation, effectively avoiding jamming or interference caused by minor misalignment during assembly.

[0017] Alternatively or supplementally, either the inner wall or the outer wall has a chamfered end near the opening.

[0018] Based on the above structure, the chamfered part can form a guiding bevel at the edge of the slot. During the assembly process of the box and the cover frame, when there is a small angular deviation between the first wall edge and the slot, it can automatically align with the slot under the guidance of the chamfered part, so that the first wall edge of the box can be smoothly aligned and inserted into the insertion slot, effectively reducing the assembly difficulty and realizing the rapid installation of the box and the cover frame.

[0019] On the other hand, this disclosure also provides a storage box. The storage box includes a box body and a lid frame as described above.

[0020] The box body includes a side wall, the side wall having a first wall edge and a second wall edge opposite to each other, the first wall edge having a bent portion that bends inward or outward and toward the second wall edge.

[0021] Alternatively or supplementally, the width of the bend gradually decreases from its bottom end to its top end.

[0022] Based on the above structure, during the disassembly of the box and cover frame, the top of the engaging part will first contact the narrower top of the bent part. Guided by the wedge-shaped structure where the width of the bent part gradually decreases as it approaches the top, the contact area between the top of the engaging part and the bent part will gradually increase. This avoids local stress concentration, ensuring that the bent part is subjected to uniform force during the disassembly of the box and cover frame, effectively reducing the risk of structural damage to the bent part due to jamming or squeezing, and ensuring that the bent part smoothly exits the slot. In addition, the wider bottom end can enhance the structural strength of the bent part, ensuring that it can effectively limit the first wall edge from exiting the slot when it abuts against the engaging part.

[0023] Alternatively or supplementally, the two edges at the top of the bend are located outside the two edges at the bottom of the engagement part.

[0024] Based on the above structure, during the disassembly of the box and the cover frame, the edge of the bent part will not come into direct and rigid contact with the locking part, which can effectively avoid the risk of scratches or deformation caused by rigid jamming or rapid disassembly of the bent part, and improve the service life of the bent part and the locking part. Attached Figure Description

[0025] It should be understood that the following figures only illustrate certain embodiments of this disclosure and should not be construed as limiting the scope.

[0026] It should be understood that the same or similar reference numerals are used in the accompanying drawings to denote the same or similar elements.

[0027] It should be understood that the accompanying drawings are only schematic, and the dimensions and scales of the elements in the drawings are not necessarily precise.

[0028] Figure 1 This is a schematic diagram of the structure of a storage box according to an embodiment of the present disclosure.

[0029] Figure 2 for Figure 1 A partial schematic cross-sectional view of the lid frame of the storage box in the image.

[0030] Figure 3 for Figure 1 A partial schematic cross-sectional view of the storage box in the middle.

[0031] Figure 4 This is a partial schematic cross-sectional view of a storage box according to another embodiment of the present disclosure.

[0032] Figure 5 for Figure 1 A partial schematic cross-sectional view of the storage box in the middle.

[0033] Figure Labels Storage box - 100; Box body - 10; First wall edge - 11; Bending part - 111; Second wall edge - 12; Cover frame - 20; Outer wall - 201; Inner wall - 202; First cover frame - 21; Second cover frame - 22; Locking part - 23; First side - 231; Second side - 232; Insertion slot - 24; Chamfered corner - 25. Detailed Implementation

[0034] Numerous specific details are set forth below to provide an understanding of the structure, function, and use of the embodiments described and illustrated in the specification and figures. It is to be understood that the embodiments described and illustrated herein are non-limiting examples, and thus it will be appreciated that the particular structural and functional details disclosed herein are representative and exemplary. Variations and changes may be made to these embodiments without departing from the scope of the claims.

[0035] A storage box according to an embodiment of the present disclosure Figure 1 As shown below. The overall structure of storage box 100 will be illustrated with an example below. It should be noted that the structure of storage box 100 should not be limited to the description below. For example, one or more elements mentioned below may be omitted or replaced, and their layout relationships may be changed.

[0036] refer to Figure 1 and Figure 2 The storage box 100 may include a box body 10 and a lid frame 20. By way of example only, the box body 10 may be integrally formed from a single sheet of material through processes such as folding; the lid frame 20 may be integrally formed or may be assembled from multiple parts. The box body 10 has a storage space inside. The box body 10 has an opening at one end in a first direction. The box body 10 may include side walls. The side walls may have opposing first wall edges 11 and second wall edges 12. The first wall edge 11 defines a portion of the opening and has a bent portion 111 that bends toward the second wall edge 12. The lid frame 20 covers the opening. The lid frame 20 may include a frame. The frame may include an inner wall 202 and an outer wall 201. The outer wall 201 is located outside the inner wall 202, and an insertion groove 24 is formed between the outer wall 201 and the inner wall 202. The insertion groove 24 has a notch for the first wall edge 11 to be inserted into. The frame is provided with a locking part 23 that engages with the bending part 111 to connect the box body 10 to the cover frame 20. For ease of description, in the accompanying drawings of this disclosure, Z is used to indicate the first direction, Y is used to indicate the second direction, and X is used to indicate the third direction.

[0037] In some embodiments, combined with Figure 3 The first wall edge 11 has a bent portion 111 that bends inward and towards the second wall edge 12, and the inner wall 202 has a locking portion 23 that protrudes towards the outer wall 201. In other embodiments, combined with Figure 4The first wall edge 11 is provided with a bent portion 111 that bends outward and towards the second wall edge 12, and the outer wall 201 is provided with a locking portion 23 that protrudes into the inner wall 202. This disclosure does not make specific limitations in this regard.

[0038] refer to Figure 3 The engaging portion 23 has a first side surface 231 on the side opposite to the slot. The first side surface 231 can abut against the bent portion 111 to restrict the first wall edge 11 from exiting the slot. The first side surface 231 gradually slopes towards the slot from the bottom end to the top end of the engaging portion 23. It should be noted that in this disclosure, the term "inner" refers to the side facing the storage space inside the box; "outer" refers to the side facing away from the storage space inside the box; "bottom end of engaging portion 23" is the end of engaging portion 23 connected to the inner wall 202 or the outer wall 201; "top end of engaging portion 23" is the end of engaging portion 23 away from the connection with the inner wall 202 or the outer wall 201.

[0039] According to the above structure, during the assembly process of the box body 10 and the cover frame 20, the first wall edge 11 is inserted into the insertion slot 24 from the groove, and the bent portion 111 is squeezed and deformed away from the engaging portion 23 under the action of the engaging portion 23. When the bent portion 111 exceeds the engaging portion 23 in the first direction, the bent portion 111 recovers its shape and engages with the engaging portion 23, thereby realizing the connection between the box body 10 and the cover frame 20. The bent portion 111 of the first wall edge 11 of the box body 10 can abut against the first side 231 of the engaging portion 23 of the cover frame 20 and restrict the first wall edge 11 from exiting the groove, effectively preventing the cover frame 20 from accidentally loosening and ensuring that the connection between the box body 10 and the cover frame 20 is stable and reliable. Furthermore, the first side 231 has a structure that gradually slopes towards the slot from the bottom end to the top end of the engaging part 23. This allows the bent part 111 to slide along the inclined first side 231 and disengage from the engaging part 23 during the disassembly of the box body 10 and the cover frame 20, effectively preventing hard jamming or forced prying, thereby preventing damage to the bent part 111.

[0040] refer to Figure 3 and Figure 4 The angle between the first side 231 and the inner wall 202 and the outer wall 201 with the engaging part 23 is α, where 110°≤α≤160°.

[0041] If α is too small, i.e., the angle α between the first side 231 and the inner wall 202 or the outer wall 201 is less than 110°, then when the first wall edge 11 needs to exit the slot, the first side 231 cannot provide an effective transition surface to guide the bent part 111, resulting in a large compressive force between the bent part 111 and the first side 231, which can easily lead to deformation or breakage of the bent part 111. If α is too large, i.e., the angle α between the first side 231 and the inner wall 202 or the outer wall 201 is greater than 160°, then when the first wall edge 11 is inserted into the insertion slot 24, the abutment between the first side 231 and the bent part 111 will be weakened, and the first wall edge 11 cannot be effectively restricted from exiting the slot, thus making the connection between the cover frame 20 and the box body 10 weak and prone to accidental loosening. Therefore, within the reasonable range of 110°≤α≤160°, not only can the bent portion 111 abut against the engaging portion 23 and effectively restrict the first wall edge 11 from exiting the slot, but it can also ensure that when the first wall edge 11 needs to exit the slot, the first side surface 231 can provide an effective transition surface to guide the bent portion 111, reducing the risk of damage to the bent portion 111.

[0042] refer to Figure 3 and Figure 4 The engaging part 23 has a second side surface 232 on the side facing the slot. The second side surface 232 gradually slopes from the bottom end to the top end of the engaging part 23 toward the side opposite to the slot.

[0043] The second side 232 has a structure that slopes backwards from the bottom end of the engaging part 23 to its top end towards the slot. This allows the bent part 111 of the first wall edge 11 to smoothly enter the insertion slot 24 under the guidance of the second side 232 when it is inserted into the insertion slot 24 from the slot. This reduces the resistance when the first wall edge 11 is inserted and facilitates the quick installation of the box body 10 and the cover frame 20.

[0044] Further reference Figure 3 and Figure 4 The angle between the second side 232 and the one in which the inner wall 202 and the outer wall 201 are provided with the engaging part 23 is β, where 20°≤β≤80°.

[0045] If β is too small, i.e., the angle between the second side 232 and the inner wall 202 or the outer wall 201 is less than 20°, then, given a fixed first side 231, the size of the inclined structure of the second side 232 will be too large, thereby increasing the size and material usage of the inner wall 202 or the outer wall 201 in the first direction, resulting in structural redundancy and material waste. If β is too large, i.e., the angle between the second side 232 and the inner wall 202 or the outer wall 201 is greater than 80°, then when the first wall edge 11 is inserted into the insertion slot 24 from the slot opening, the second side 232 cannot provide an effective transition surface to guide the bending portion 111, resulting in increased resistance when the first wall edge 11 is inserted into the insertion slot 24. Therefore, within the reasonable range of 20°≤β≤80°, it is possible not only to ensure that the second side 232 provides an effective transition surface to guide the bending portion 111 and reduce the resistance when the first wall edge 11 is inserted into the insertion slot 24, but also to improve the material utilization rate.

[0046] refer to Figure 5 The width of the engaging portion 23 gradually decreases from its bottom end to its top end. It should be noted that, in this disclosure, the width of the engaging portion 23 is the dimension of the engaging portion 23 in a third direction.

[0047] Based on the above structure, the engaging portion 23 adopts a wedge-shaped structure with its width gradually decreasing towards the top. During the disassembly of the box body 10 and the cover frame 20, the contact area between the bent portion 111 and the engaging portion 23 gradually decreases, thereby reducing the frictional resistance between the bent portion 111 and the engaging portion 23, avoiding local stress concentration, and effectively reducing the risk of structural damage to the bent portion 111 due to jamming or compression, ensuring that the bent portion 111 smoothly exits the slot. In addition, the wider bottom end can enhance the structural strength of the engaging portion 23, ensuring that it can effectively restrict the first wall edge 11 from exiting the slot when it abuts against the bent portion 111.

[0048] refer to Figure 2 The distance between the inner wall 202 and the outer wall 201 gradually increases as they approach the opening of the groove.

[0049] Based on the above structure, during the assembly of the box body 10 and the cover frame 20, the bent portion 111 of the first wall edge 11 of the box body 10 can be guided to accurately and smoothly enter the insertion slot 24, reducing the difficulty of assembly and improving the convenience of the assembly operation between the box body 10 and the cover frame 20. In addition, the larger slot can provide a larger tolerance space, allowing the first wall edge 11 to still enter smoothly with a certain angular deviation, effectively avoiding jamming or interference caused by minor misalignment during assembly.

[0050] Continue to refer to Figure 2Either the inner wall 202 or the outer wall 201 has a chamfered portion 25 at one end near the groove opening. In another embodiment, both the inner wall 202 and the outer wall 201 have chamfered portions 25 at one end near the groove opening. This disclosure does not limit this aspect.

[0051] According to the above structure, the chamfered portion 25 can form a guiding bevel at the edge of the slot. During the assembly process of the box body 10 and the cover frame 20, when there is a small angular deviation between the first wall edge 11 and the slot, it can automatically align with the slot under the guidance of the chamfered portion 25, so that the first wall edge 11 of the box body 10 can be smoothly aligned and inserted into the insertion slot 24, effectively reducing the assembly difficulty, avoiding jamming or interference caused by minor misalignment during assembly, and realizing the rapid installation of the box body 10 and the cover frame 20.

[0052] refer to Figure 5 The width of the bent portion 111 gradually decreases from its bottom end to its top end. It should be noted that the bottom end of the bent portion 111 is the end where the bent portion 111 connects to the first wall edge 11; the top end of the bent portion 111 is the end of the bent portion 111 away from the connection with the first wall edge 11; and the width of the bent portion 111 is the dimension of the bent portion 111 in the third direction.

[0053] According to the above structure, during the disassembly of the box body 10 and the cover frame 20, the top of the engaging part 23 will first contact the narrower top of the bent part 111. Guided by the wedge-shaped structure of the bent part 111, which gradually decreases in width as it approaches the top, the contact area between the top of the engaging part 23 and the bent part 111 will gradually increase. This avoids local stress concentration, ensuring that the bent part 111 is subjected to uniform force during the disassembly of the box body 10 and the cover frame 20, effectively reducing the risk of structural damage to the bent part 111 due to jamming or squeezing, and ensuring that the bent part 111 smoothly exits the slot. In addition, the wider bottom end can enhance the structural strength of the bent part 111, ensuring that it can effectively restrict the first wall edge 11 from exiting the slot when it abuts against the engaging part 23.

[0054] Further reference Figure 5 The two edges at the top of the bent part are located outside the two edges at the bottom of the engaging part.

[0055] According to the above structure, during the disassembly of the box body 10 and the cover frame 20, the edge of the bent part 111 will not make direct and rigid contact with the locking part 23, which can effectively avoid the risk of scratches or deformation caused by rigid jamming or rapid disassembly of the bent part 111, and improve the service life of the bent part 111 and the locking part 23.

[0056] In other embodiments, the housing 10 may include four side walls. In some embodiments, two opposite side walls are provided with bends 111, and the cover frame 20 has corresponding engaging portions 23 that engage with them. In other embodiments, all four side walls are provided with bends 111, and the cover frame 20 has corresponding engaging portions 23 that engage with them. In still other embodiments, other configurations may be used. This disclosure does not limit the scope of the invention.

[0057] In other embodiments, the housing 10 may have openings at both its end and bottom in the first direction. The cover frame 20 may include a first cover frame 21 and a second cover frame 22. By way of example only, the first cover frame 21 covers the top opening, and the second cover frame 22 covers the bottom opening. Both the first cover frame 21 and the second cover frame 22 are provided with engaging portions 23 that cooperate with the bent portions 111 on the housing 10 to achieve a reliable connection between the housing 10 and the cover frame 20.

[0058] It should be noted that the elements described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0059] It should be understood that multiple components and / or parts can be provided by a single integrated component or part. Alternatively, a single integrated component or part can be divided into multiple separate components and / or parts. The use of the public designation "a" or "an" to describe a component or part does not imply the exclusion of other components or parts.

[0060] It should be understood that although terms such as “first” or “second” may be used in this disclosure to describe various elements (such as the first wall edge and the second wall edge), these elements are not defined by these terms, which are only used to distinguish one element from another.

[0061] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0062] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A lid frame for a storage box, characterized in that, The storage box further includes a box body, the box body including side walls, the side walls having opposing first and second wall edges, the cover frame including a frame body, the frame body including an inner wall and an outer wall, the outer wall being located outside the inner wall, an insertion groove being formed between the outer wall and the inner wall, the insertion groove having an opening, the opening for the first wall edge to be inserted into the insertion groove, wherein the first wall edge has a bent portion bending inward and towards the second wall edge, and the inner wall has a locking portion protruding towards the outer wall; or, the first wall edge has a bent portion bending outward and towards the second wall edge, and the outer wall has a locking portion protruding towards the inner wall; the locking portion has a first side surface on the side opposite to the opening, the first side surface being able to abut against the bent portion to restrict the first wall edge from exiting the opening, the first side surface gradually sloping towards the opening from the bottom end to the top end of the locking portion.

2. The lid frame of the storage box according to claim 1, characterized in that, The angle between the first side and one of the inner wall and the outer wall where the engaging part is provided is α, where 110°≤α≤160°.

3. The lid frame of the storage box according to claim 1 or 2, characterized in that, The engaging part has a second side surface on the side facing the slot, and the second side surface gradually slopes from the bottom end to the top end of the engaging part toward the side opposite to the slot.

4. The lid frame of the storage box according to claim 3, characterized in that, The angle between the second side and one of the inner wall and the outer wall where the engaging part is provided is β, where 20°≤β≤80°.

5. The lid frame of the storage box according to claim 1, characterized in that, The width of the engaging portion gradually decreases from its bottom end to its top end.

6. The lid frame of the storage box according to claim 1, characterized in that, The distance between the inner wall and the outer wall gradually increases as they approach the slot.

7. The lid frame of the storage box according to claim 6, characterized in that, The inner wall and the outer wall either have a chamfered end near the groove opening.

8. A storage box, characterized in that, include: The box body includes a side wall, the side wall having opposing first and second wall edges, the first wall edge having a bent portion that bends inward or outward and toward the second wall edge; as well as The cover frame according to any one of claims 1 to 7.

9. The storage box according to claim 8, characterized in that, The width of the bend gradually decreases from its bottom end to its top end.

10. The storage box according to claim 9, characterized in that, The two edges at the top of the bent portion are located outside the two edges at the bottom of the engaging portion.

Images