Storage box cover and storage box

Abstract

The utility model discloses a storage box cover and a storage box, and belongs to the field of storage boxes. The box cover comprises a cover body defined by an outer wall face, a side wall face and an inner wall face, and the peripheral edge of the inner side of the cover body is provided with a press-fit wall face used for being matched with a box body to tightly cover the box body. A hollow inner cavity is formed between at least partial area of the inner wall face of the box cover and the outer wall face in a spaced mode, a connecting part extending towards the outer wall face in the hollow inner cavity is arranged on the inner wall face, and the connecting part extends from the inner wall face to make contact with the outer wall face. According to the storage box, the box cover is optimally designed, so that the structural stability of the storage box is improved, and the service life of the storage box is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of storage box, more specifically, to a storage box cover and storage box. BACKGROUND

[0002] At present, in order to expand the storage space on the top of the vehicle, more and more consumers prefer to install a storage box on the roof. However, as users' demand for storage space continues to increase, the size and carrying capacity of the roof storage box also increase accordingly, which puts forward more stringent technical requirements for the strength stability and service life of the box structure. Especially in the application scene of large box structure, the industry generally uses rotational molding process to manufacture the box structure. Rotational molding, also known as rotational molding, rotational molding, and rotational molding, is a hollow molding method for thermoplastic plastics. First, the plastic raw material is added to the mold, and then the mold is rotated along two vertical axes and heated. Under the action of gravity and heat energy, the plastic raw material in the mold gradually and uniformly coats and melts on the entire surface of the mold cavity, forming the required shape, and then cooling and setting to form the product.

[0003] Although rotational molding can process large size boxes, as the size of the box increases, the structural strength and stability still face severe challenges. Moreover, large rotational molding boxes need to withstand complex external loads during vehicle driving, including but not limited to wind resistance, vibration, and impact force of the carried objects. These factors can cause the box structure to deform or even be damaged. Therefore, how to improve the structural strength and stability of the storage box, especially the large rotational molding box, has become a problem of great concern to consumers.

[0004] The patent with publication number CN218840283U provides a rotational molding box resistant to strong impact, which supports and protects the bottom of the box and the top of the cover by setting a support member to improve its application performance. The patent with publication number CN214608945U provides a rotational molding box, the upper surface of the box is a honeycomb structure, which increases the thickness of the upper surface, and the side of the box is provided with alternating recess structure and protrusion structure arranged in "well" type to improve the compression resistance. Although the above designs can help improve the stability of the rotational molding box, the structure is relatively complex, which not only occupies space but also affects the simple and elegant design of the box, making it difficult to meet the higher demands of consumers. UTILITY MODEL CONTENTS

[0005] 1. Technical problem to be solved by the utility model

[0006] The utility model aims to solve the problem of deformation and damage of the storage box in the prior art. By optimizing the design of the cover, the utility model helps to improve the structural stability of the storage box and prolong its service life.

[0007] 2. Technical solution

[0008] To achieve the above object, the utility model provides a technical scheme for:

[0009] The utility model discloses a kind of storage box lids, the lid includes the lid body formed by outer wall surface, side wall surface and inner wall surface, and the inner side four perimeter edges of lid body have the compression wall surface for being matched with the tight cover of box body;At least partial area between inner wall surface of lid and outer wall surface is spaced to form hollow inner cavity, and connecting portion extending towards the direction of outer wall surface is equipped in hollow inner cavity on inner wall surface, and connecting portion extends from inner wall surface to contact with outer wall surface.

[0010] Further, recess is provided on the inner wall surface of the lid, which is recessed towards the outer wall surface. The bottom of the recessed wall surface extends to contact with the outer wall surface.

[0011] Further, the bottom of the recessed wall surface on the inner wall surface has an arc-shaped wall surface, which contacts with the outer wall surface.

[0012] Further, the outer side of the outer wall surface of the lid has a sunken area corresponding to the area where the arc-shaped wall surface is located, which is recessed towards the inner wall surface. The arc-shaped wall surface extends to contact with the outer wall surface of the sunken area.

[0013] Further, the recess on the inner wall surface includes a first recess and a second recess, which are recessed towards the outer wall surface in sequence. The second recess is located inside the recess cavity of the first recess and extends downward to contact with the outer wall surface.

[0014] Further, the bottom of the second recess has an arc-shaped wall surface, and the bottom end of the arc-shaped wall surface contacts with the outer wall surface.

[0015] Further, the lid is roll-molded. Along the length direction of the lid, the total length of the connecting portion contacting with the outer wall surface is less than the length of the inner wall surface. Along the width direction of the lid, the total length of the connecting portion contacting with the outer wall surface is less than the width of the inner wall surface.

[0016] Further, the compression wall surface of the lid is circumferentially surrounded by a sealing installation groove, and a sealing ring is embedded in the sealing installation groove. The embedded part of the sealing ring is provided with a protruding part outwardly protruding, and a limiting part is correspondingly provided on the sealing installation groove.

[0017] Further, a mesh plate is detachably installed on the inner wall surface, and a plurality of through holes are provided on the mesh plate for fixing articles. At least part of the through holes corresponds to the position of the recess on the inner wall surface.

[0018] The utility model also provides a storage box, which comprises a box body and the lid as described above. The lid is assembled with the box body.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the technical scheme has the following beneficial effects:

[0021] The box cover has a double-layer hollow structure, a plurality of groove structures are arranged on the inner wall surface in a spaced distribution mode, so that the inner wall surface presents a reinforcing rib structure in a crisscross mode, the bottom wall of the groove can be in contact with the outer wall surface, a plurality of solid support points are formed in the hollow inner cavity, the support effect and the overall strength of the box cover can be effectively improved, the deformation resistance is ensured, the service life is improved, no independent reinforcing accessory needs to be added to the box cover, the overall structure is simple, and molding is convenient.

[0022] The bottom wall of the groove is in point contact with the outer wall surface in an arc wall surface structure, the point is changed into a line along the axial extension direction of the arc wall surface, the line contact is kept between the arc wall surface bottom wall and the outer wall surface, the support strength and the stability effect of the contact area are further improved, the points of each area can be effectively contacted, the problem that some support areas cannot be contacted due to local machining quality difference is avoided, and the support strength and the structural stability are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a storage box structure schematic view in the embodiment;

[0024] Figure 2 It is an internal structure schematic view of the storage box cover in the embodiment;

[0025] Figure 3 It is a bottom view angle structure schematic view of the box cover in the embodiment;

[0026] Figure 4 It is a sectional view structure schematic view of the box cover in the embodiment;

[0027] Figure 5 It is Figure 4 A local enlarged structure schematic view in the embodiment;

[0028] Explanation of the reference numerals in the schematic view:

[0029] 100, box cover;200, box body;

[0030] 101, outer wall surface;102, inner wall surface;103, first groove;104, second groove;105, mounting nut;106, sealing ring;107, hollow inner cavity;108, protruding portion;109, outer side wall;110, press-fit wall surface;111, inner side wall. DETAILED DESCRIPTION

[0031] In order to further understand the content of the utility model, the utility model is described in detail in combination with the drawings.

[0032] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] The utility model will be further described below in combination with examples.

[0034] Examples

[0035] In combination with Figures 1-5 As shown in the figure, the storage box of the embodiment comprises a box body 200 and a box cover 100, the box cover 100 is assembled with the box body 200, and in practice, a plurality of buckles with locks can be used for locking, etc., and there are various buckle locking methods in the industry, which will not be described in detail here.

[0036] In actual use, the user needs to open the box cover 100 every time to take or place the articles, and often presses the box cover 100, which results in a higher probability of deformation and damage of the box cover 100 compared with the box body 200, especially for large storage boxes installed on the roof, which have larger size specifications, and the requirements for the strength and anti-deformation performance of the storage box are even more stringent. In order to improve the application convenience and effectively utilize the storage space, the box cover 100 can be further designed to be detachably installed with a mesh plate or a storage bag on the inner side, and the mesh plate is a hole plate, a plurality of mounting hole positions are provided on the mesh plate to facilitate the user to fix the articles, or a storage bag is directly installed to realize double-sided storage on the box cover 100 and in the box body 200. At this time, the box cover 100 is in a state of being hooked downward on the inner side to bear the load, which is more likely to cause deformation under pressure and damage, and therefore higher challenges are put forward to the structural strength and stability of the box cover 100.

[0037] The box cover 100 is further optimized in the embodiment, in combination with Figures 2-4As shown, the box cover 100 includes a cover body surrounded by an outer wall surface 101, a side wall surface and an inner wall surface 102, and the inner side of the cover body has a pressing wall surface 110 for tightly cooperating with the box body 200. At least part of the inner wall surface 102 of the box cover 100 is spaced apart from the outer wall surface 101 to form a hollow inner cavity 107, and the inner wall surface 102 is provided with a connecting portion extending in the hollow inner cavity 107 and towards the outer wall surface 101, and the connecting portion extends from the inner wall surface 102 to contact the outer wall surface 101. The double-layer cover body structure can improve the strength, and the connecting portion can be spaced apart and distributed in multiple groups in the hollow inner cavity 107, so that multiple solid point support effects are formed between the inner wall surface 102 and the outer wall surface 101, which can effectively improve the support effect and overall strength of the double-layer hollow structure.

[0038] In practice, the inner wall surface 102 of the box cover 100 is provided with a groove recessed towards the outer wall surface 101, and the bottom of the forming wall surface of the groove extends to contact the outer wall surface 101, that is, the forming wall surface of the groove is used as the connecting portion to connect the inner wall surface 102 and the outer wall surface 101. Multiple groups of groove structures can be spaced apart on the inner wall surface 102, so that the surface of the inner wall surface 102 presents a longitudinal and transverse staggered protruding rib structure, which has the effect of further strengthening the strength and improving the stability.

[0039] To further improve the effect of multi-point support strengthening, preferably further, Figure 4 As shown, the bottom of the groove forming wall surface on the inner wall surface 102 has an arc-shaped wall surface, which contacts the outer wall surface 101. And along the axial extension direction of the arc-shaped wall surface, the arc-shaped wall surface bottom wall and the outer wall surface 101 maintain a certain length of line contact to improve the support strength. Preferably, the axial extension direction of the arc-shaped wall surface is the length extension direction of the inner wall surface 102, so as to improve the strength and stability in the length direction. The point contact is realized by the bottom end of the arc-shaped wall surface, and the contact area extends in the axial direction for a certain length, so that the linear support effect of multiple position areas is formed from points to lines, which further improves the support strength and stability effect of each contact area. The point contact support of the bottom end of the arc-shaped wall surface can effectively ensure that each area can be effectively contacted in the machining process, avoiding the problem that some support areas cannot be contacted due to local machining quality difference, and finally leading to uneven point support, poor product strength and stability.

[0040] To further improve the support strength of the connecting portion, further, the outer side of the outer wall surface 101 of the box cover 100 has a sunken area recessed towards the inner wall surface 102 corresponding to the area where the arc-shaped wall surface is located, and the arc-shaped wall surface extends to contact the outer wall surface 101 of the sunken area. Combined with Figure 1 and Figure 4As shown, the side of the outer wall surface 101 away from the hollow inner cavity 107 is provided with a downwardly recessed sunken area, so that the interval height between the outer wall surface 101 and the inner wall surface 102 of the sunken area is reduced, thereby facilitating the reduction of the height of the connecting portion, especially when the connecting portion adopts an arc-shaped wall surface, which helps to reduce the extension height of the arc-shaped wall surface, effectively improves the self-supporting strength of the arc-shaped wall surface, and is also convenient for product processing and molding.

[0041] In practice, the recesses can be processed in various forms. In some embodiments, the recesses on the inner wall surface 102 include a first recess 103 and a second recess 104 which are recessed in turn towards the outer wall surface 101, and the second recess 104 is located inside the recess cavity of the first recess 103 and extends downwardly to contact the outer wall surface 101. More specifically, the inner wall surface 102 is provided with a first recess 103 which is recessed towards the outer wall surface 101, and the bottom wall of the first recess 103 does not contact the outer wall surface 101; the first recess 103 is internally provided with a second recess 104 which is recessed further towards the outer wall surface 101, and the bottom wall of the second recess 104 extends to contact the outer wall surface 101. The inner cavity of the second recess 104 is smaller than that of the first recess 103, forming a double-layer nested recess structure, and the bottom wall of the second recess 104 is the bottom wall of the recess and corresponds to the outer wall surface 101. In this way, a multi-layer reinforcing rib structure is formed on the inner wall surface 102, further improving the structural strength, and the wall height of the second recess 104 is reduced, the supporting strength is higher, which is also beneficial to save processing materials, reduce costs and increase benefits, and the modeling is beautiful.

[0042] When the above-mentioned double-layer recess structure is adopted, the bottom of the second recess 104 preferably has an arc-shaped wall surface, and the bottom end of the arc-shaped wall surface contacts the outer wall surface 101. Specifically, as shown in Figure 4 As shown, when viewed along the longitudinal section of the box cover 100 in the width direction, or when viewed along the sectioning surface in Figure 4 , the longitudinal section of the second recess 104 is an arc-shaped wall surface recessed towards the hollow inner cavity 107, the axis direction of the arc-shaped wall surface extends along the length direction of the box cover 100, and the second recess 104 is centrally distributed in the first recess 103, which has higher structural stability.

[0043] In practice, the box cover 100 can be processed in various forms. For example, the box body 200 and the box cover 100 are both processed and formed by rotational molding process, which can realize large-size molding. At this time, the total length of the connecting portion contacting the outer wall surface 101 along the length direction of the box cover 100 is less than the length of the inner wall surface 102; and the total length of the connecting portion contacting the outer wall surface 101 along the width direction of the box cover 100 is less than the width of the inner wall surface 102. Specifically, in combination with Figure 4As shown, a plurality of rows of grooves are formed on the inner wall surface 102, for example, each row of grooves includes a plurality of recesses distributed at intervals along the length direction of the inner wall surface 102, and the plurality of rows of recesses are distributed at intervals in the width direction of the inner wall surface 102, so that a plurality of rows and columns of grooves are formed on the inner wall surface 102. For the same row of grooves in the length direction, the total length of the contact area between the groove bottom wall and the outer wall surface 101 is less than the length of the inner wall surface 102. For the same column of grooves in the width direction, the total length of the contact area between the groove bottom wall and the outer wall surface 101 is less than the width of the inner wall surface 102. That is, the length of the contact area between the groove bottom wall of any row or column and the outer wall surface 101 does not completely block the hollow inner cavity 107 in the length direction or the width direction. Therefore, during the rotational molding process, especially for large rotational molding box structures, the rotational plastic can still flow freely in the entire hollow inner cavity 107 at any position, thereby ensuring the molding quality and structural strength of each region.

[0044] In practice, a plurality of rows of first grooves 103 are preferably arranged at intervals on the inner wall surface 102 and distributed in the length direction of the box cover 100, and at least one row of first grooves 103 is internally provided with a second groove 104. Specifically, the plurality of rows of first grooves 103 are uniformly and evenly distributed in the width direction of the box cover 100, and the second groove 104 is formed in the first groove 103 located in the middle region of the width direction of the box cover 100. As shown in the figure, Figure 4 As shown, four rows of first grooves 103 are formed on the inner wall surface 102, and the first grooves 103 at the two ends are respectively close to the two end walls in the width direction of the inner wall surface 102. The middle region of the entire box cover 100 is more prone to deformation under stress, so the second groove 104 is further arranged in the two rows of first grooves 103 close to the middle region in the width direction and extends to contact the outer wall surface 101. That is, only the middle region is provided with a groove structure that contacts the outer wall surface 101. This not only sufficiently strengthens the structural stability of the easily deformed region, but also reduces the separation of the contact line in the edge region from the hollow inner cavity 107, ensuring the free and sufficient flow of the rotational material at the edge position during the rotational molding process, and ensuring the overall molding quality and structural stability.

[0045] To further improve the waterproof and dustproof performance of the storage box, a sealing installation groove is arranged on the pressing wall surface 110 of the box cover 100 in the circumferential direction, and a sealing ring 106 is embedded in the sealing installation groove. A protruding portion is arranged on the embedded portion of the sealing ring 106 to effectively prevent the sealing ring 106 from being pulled out and improve the sealing stability. A limiting portion is arranged on the sealing installation groove to press the protruding portion 108 inside the sealing installation groove and prevent the sealing ring 106 from moving and coming off, thereby ensuring the sealing stability. Figure 5 As shown, a protruding portion 108 is arranged on the embedded portion of the sealing ring 106 to effectively prevent the sealing ring 106 from being pulled out and improve the sealing stability. A limiting portion is arranged on the sealing installation groove to press the protruding portion 108 inside the sealing installation groove and prevent the sealing ring 106 from moving and coming off, thereby ensuring the sealing stability.

[0046] To improve the storage space, it is convenient to match the storage accessories in the box cover 100. Optionally, a mesh plate is detachably installed on the inner wall surface 102, a plurality of through hole positions are formed on the mesh plate for fixing articles, and at least part of the through hole positions correspond to the groove positions formed on the inner wall surface 102. The recessed area forms an effective space to avoid the through hole positions of the mesh plate, so as to fix the articles on the through hole positions of the mesh plate. Specifically, the height between the inner wall surface 102 and the outer wall surface 101 of the box cover 100 is less than the overall thickness of the box cover 100, so that the inner side of the box cover 100 has a recessed space. More accurately, in combination with Figure 2 As shown, the box cover 100 includes a cover body surrounded by the outer wall surface 101, the side wall surface and the inner wall surface 102. At this time, the side wall surface not only includes the outer side wall 109, but also includes the inner side wall 111, that is, the four peripheral edges of the outer wall surface 101 are connected with the outer side wall 109, the four peripheral edges of the inner wall surface 102 are connected with the inner side wall 111, and the end portions of the inner side wall 111 and the outer side wall 109 are connected with the pressing wall surface 110, so as to form a hollow cover body. The recessed space with a certain height between the inner wall surface 102 and the pressing wall surface 110 can be used for storage, and a plurality of groups of installation nuts 105 are arranged on the four peripheries of the inner wall surface 102, which are used for cooperating with the installation of accessories such as mesh plates or storage bags in the recessed space. In practice, the installation nuts 105 can be integrally formed in the rolling stage to ensure the strength and position stability of the formed product, and the subsequent installation of accessories can be fastened by cooperating with bolts, which is convenient to use.

[0047] It should be noted that the storage box described in the embodiment includes but is not limited to a large storage box placed on the roof of a vehicle, and can also be used for storage box setting in other scenes. The storage box is not limited to a rolling plastic box, and can also be formed by other plastic processing forming processes.

[0048] The above describes the utility model and its implementation mode in a schematic manner, which is not restrictive, but is only one of the implementation modes of the utility model, and is not limited in practice. Therefore, if a person skilled in the art is inspired by it, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the utility model.

Claims

1. A storage box lid, the lid (100) comprising a cover body surrounded by an outer wall surface (101), a side wall surface, and an inner wall surface (102), wherein the inner periphery of the cover body has a pressing wall surface (110) for fitting tightly with the box body (200); characterized in that: At least a portion of the inner wall surface (102) of the lid (100) is spaced apart from the outer wall surface (101) to form a hollow inner cavity (107). The inner wall surface (102) is provided with a connecting portion extending in the hollow inner cavity (107) toward the outer wall surface (101). The connecting portion extends from the inner wall surface (102) to contact the outer wall surface (101).

2. The storage box lid according to claim 1, characterized in that: The inner wall surface (102) of the lid (100) is provided with a groove that is recessed toward the outer wall surface (101), and the bottom of the shaped wall surface of the groove extends to contact the outer wall surface (101).

3. The storage box lid according to claim 2, characterized in that: The bottom of the groove-shaped wall surface on the inner wall surface (102) has an arc-shaped wall surface that contacts the outer wall surface (101).

4. A storage box lid according to claim 3, characterized in that: The outer side of the outer wall surface (101) of the box cover (100) has a recessed area that is recessed towards the inner wall surface (102) in the area corresponding to the arc-shaped wall surface, and the arc-shaped wall surface extends to contact the outer wall surface (101) of the recessed area.

5. A storage box lid according to claim 2, characterized in that: The groove on the inner wall surface (102) includes a first groove (103) and a second groove (104) that are recessed in sequence toward the outer wall surface (101). The second groove (104) is located inside the cavity of the first groove (103) and extends downward to contact the outer wall surface (101).

6. A storage box lid according to claim 5, characterized in that: The bottom of the second groove (104) has an arc-shaped wall surface, the bottom end of which contacts the outer wall surface (101).

7. A storage box lid according to any one of claims 1-6, characterized in that: The lid (100) is formed by rotational molding. Along the length of the lid (100), the total length of the connection between the connection part and the outer wall surface (101) is less than the length of the inner wall surface (102); along the width of the lid (100), the total length of the connection part and the outer wall surface (101) is less than the width of the inner wall surface (102).

8. A storage box lid according to claim 1, characterized in that: The sealing mounting groove is provided around the circumference of the pressing wall surface (110) of the box cover (100), and a sealing ring (106) is fitted in the sealing mounting groove; and the fitting part of the sealing ring (106) is provided with an outward protrusion (108), and a corresponding limiting part is provided on the sealing mounting groove.

9. A storage box lid according to claim 2, characterized in that: A mesh plate is detachably installed on the inner wall surface (102). The mesh plate has multiple through holes for fixing items, and at least some of the through holes correspond to the positions of the grooves opened on the inner wall surface (102).

10. A storage box, comprising a box body (200), characterized in that: It also includes a lid (100) as described in any one of claims 1-9, wherein the lid (100) is fastened to the box body (200).

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