A box cover anti-skid structure and a luggage box

Abstract

The utility model discloses a kind of box cover antiskid structure and suitcase, wherein, box cover antiskid structure, comprising: a plurality of first anti-skid lines, the first anti-skid line is straight strip, the first anti-skid line extends horizontally along the side of box cover, and the first anti-skid line between two adjacent is set with interval;A plurality of second anti-skid lines, the second anti-skid line is inclined strip, and the second anti-skid line extends obliquely along the outer end surface of box cover;Wherein, the number of the second anti-skid line is same with first anti-skid line, one end of the second anti-skid line is connected with first anti-skid line, and the other end extends obliquely in the direction away from first anti-skid line.The utility model of a kind of box cover antiskid structure and suitcase can effectively resist horizontal, oblique and other multidirectional sliding trends under the scene such as suitcase dumping placement, and greatly reduce the risk of article falling or box body rollover caused by sliding.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to an anti-slip structure for a suitcase lid and a suitcase. Background Technology

[0002] The core purpose of adding anti-slip textures to the surface of a suitcase lid is to increase the friction between the lid and the contact surface (such as the ground, table, etc.), thereby reducing the risk of the suitcase sliding when it is tipped over or subjected to force. Specifically, when the suitcase is tipped over, the lid, as the main part in contact with the supporting surface, is protected by anti-slip textures. These textures increase the roughness of the contact surface, thereby increasing frictional resistance and preventing the lid from shifting due to external forces (such as collisions or slight pushes) or gravity, thus enhancing the stability of the suitcase when it is not upright.

[0003] However, the existing anti-slip design of suitcases sets anti-slip structures on the surface of the lid, and the anti-slip textures mostly extend in a straight line along the lid, which has a significant drawback: such straight textures can only provide limited frictional resistance parallel to the direction of the texture extension. When the suitcase is subjected to external forces in non-linear directions such as lateral or diagonal directions, the gripping force between the texture and the ground is greatly reduced, and it cannot form all-directional anti-slip protection. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a non-slip structure for a suitcase lid and a suitcase, which can effectively resist the tendency of sliding in multiple directions such as horizontal and diagonal when the suitcase is tilted, and greatly reduce the risk of items falling or the suitcase tipping over due to sliding.

[0005] According to a first aspect of the present invention, a box lid anti-slip structure includes:

[0006] Several first anti-slip patterns, each anti-slip pattern is in the shape of a straight strip, and the first anti-slip patterns extend horizontally along the side of the lid, with a gap between two adjacent first anti-slip patterns;

[0007] Several second anti-slip patterns, the second anti-slip patterns are diagonal stripes, and the second anti-slip patterns extend obliquely along the outer end face of the box lid;

[0008] The number of the second anti-slip patterns is the same as that of the first anti-slip patterns. One end of the second anti-slip pattern is connected to the first anti-slip pattern, and the other end extends obliquely away from the first anti-slip pattern.

[0009] According to a first aspect of the present invention, a box cover anti-slip structure is provided, wherein the first anti-slip texture and the second anti-slip texture are raised and disposed on the outer surface of the box cover.

[0010] According to a first aspect of the present invention, a box cover anti-slip structure is provided, wherein the first anti-slip pattern and the second anti-slip pattern are connected to form an anti-slip strip structure, and two adjacent anti-slip strip structures are parallel to each other.

[0011] According to a first aspect embodiment of the present invention, a box cover anti-slip structure is provided, wherein the anti-slip strip structure has multiple strips, and a groove is formed between two adjacent anti-slip strip structures, wherein the groove is adapted to the protrusion of the first anti-slip pattern and the second anti-slip pattern.

[0012] According to a first aspect of the present invention, a box cover anti-slip structure is provided, wherein both the first anti-slip texture and the second anti-slip texture are arc-shaped structures.

[0013] According to a first aspect of the present invention, a box cover anti-slip structure is provided, wherein the diameter of the arc-shaped structure is 5-8mm, the height is 3-5mm, and the distance between adjacent protrusions is 10-15mm.

[0014] A suitcase according to a second aspect of the present invention includes a first cover, a second cover, omnidirectional casters, a push-pull rod, and a lid anti-slip structure;

[0015] The first cover and the second cover are hinged together. The anti-slip structure of the lid is formed on the outer surface of the first cover and the second cover. The universal casters are located at the bottom of the first cover and the second cover. A push-pull seat is provided on one side of the first cover. The push-pull rod is telescopically located in the push-pull seat. The first cover and the second cover are also provided with a zipper assembly for locking. The first cover is also provided with a handle, which is a flat strip structure. There are four universal casters, which are arranged symmetrically in pairs. The bottom of the first cover and the second cover are both provided with a reinforcing seat. The universal casters are connected to the first cover and the second cover through the reinforcing seat.

[0016] Furthermore, the zipper assembly includes a zipper disposed on the opposite side of the first cover and the second cover, and a lock disposed on the first cover for locking the first cover and the second cover. A protective fold is also provided at the port on the opposite side of the first cover and the second cover, and the protective fold covers the outside of the zipper.

[0017] Both the first and second covers have an inner lining. A reinforcing frame is provided at the opening of the first and second covers. The reinforcing frame includes a flat frame and a vertical frame on the top surface of the flat frame. The vertical frame fits against the inner wall of the first and second covers. A positioning hole is provided on the vertical frame, and a rivet structure is provided in the positioning hole. A riveting hole for inserting the rivet structure is provided on the inner wall of the first and second covers. The reinforcing frame is fixed in the riveting hole on the first and second covers by the rivet structure.

[0018] Furthermore, the rivet structure includes a fixing sleeve fixed in the rivet hole, a pull-out sleeve inserted inside the fixing sleeve, and an arc-shaped plate extending axially from one end of the pull-out sleeve into the fixing sleeve. Multiple arc-shaped plates are arranged in a circumferential array. A wedge-shaped block extending radially is provided on the outer wall of the arc-shaped plate. A wedge-shaped groove corresponding to the wedge-shaped block and capable of being engaged is provided on the inner wall of the fixing sleeve. A pull rod capable of sliding axially is provided inside the pull-out sleeve. The outer wall of the pull rod presses against the inner wall of the arc-shaped plate to cause the wedge-shaped block to be engaged within the wedge-shaped groove. A return spring is also sleeved on the pull rod. The bottom end of the return spring is connected to the outer wall of the pull rod, and the top end of the pull rod is connected to the inner wall of the pull-out sleeve. In the initial state, the pull rod tends to slide into the fixing sleeve.

[0019] Furthermore, a positioning rod is provided at one end of the pull-out sleeve that extends to the outside of the fixed sleeve, and a positioning groove is provided on the end face of the fixed sleeve for the positioning rod to be inserted. When the pull-out sleeve is inserted into the fixed sleeve, the positioning rod is inserted into the positioning groove.

[0020] The anti-slip structure for a suitcase lid and a suitcase according to an embodiment of the present utility model have at least the following beneficial effects:

[0021] This invention forms a multi-directional anti-slip system by setting the horizontal extension of the first anti-slip texture and the inclined extension of the second anti-slip texture. Combined with the interlocking structure of the protrusions and grooves and the arc-shaped design, it solves the defect of existing straight textures that can only prevent slipping in one direction. In scenarios such as when the suitcase is tilted, it can effectively resist the sliding trend in multiple directions such as horizontal and oblique, and greatly reduce the risk of items falling or the suitcase tipping over due to sliding.

[0022] This utility model effectively prevents the lid from deforming under stress by setting up reinforcing seats, reinforcing frames and other reinforcing structures, ensuring that the anti-slip function can be stably performed in scenarios such as when the suitcase is tilted or placed, thus achieving a synergistic enhancement of anti-slip performance and structural stability.

[0023] This utility model protects the zipper assembly by setting protective folds, enhances the comfort of use by adding an inner lining, and provides convenient movement by using omnidirectional wheels. While ensuring the core anti-slip function, it comprehensively improves the durability and user experience of the suitcase, achieving an optimized unity between anti-slip function and overall practical performance.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a suitcase according to an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 A schematic diagram of the rear view structure of a suitcase is shown;

[0028] Figure 3 for Figure 1 The diagram shows the internal structure of the lid of a suitcase.

[0029] Figure 4 for Figure 3 Schematic diagram of the middle reinforcing frame;

[0030] Figure 5 for Figure 3 A schematic diagram of the rivet structure;

[0031] Figure 6 for Figure 5 A cross-sectional schematic diagram of the rivet structure.

[0032] In the diagram: 1. First cover; 2. Second cover; 3. Reinforcing base; 4. Universal caster; 5. First anti-slip texture; 6. Second anti-slip texture; 7. Groove; 8. Handle; 9. Lock; 10. Protective folded edge; 11. Zipper; 12. Push-pull base; 13. Push-pull rod; 14. Lining; 15. Reinforcing frame; 151. Flat frame; 152. Vertical frame; 153. Positioning hole; 16. Rivet structure; 161. Fixing sleeve; 162. Pull-out sleeve; 163. Positioning rod; 164. Positioning groove; 165. Arc plate; 166. Wedge block; 167. Wedge groove; 168. Pull rod; 169. Return spring. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, this is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The following description, in conjunction with the accompanying drawings, describes an anti-slip structure for a suitcase lid and a suitcase according to an embodiment of the present invention.

[0038] Reference Figure 1-6 The present invention aims to provide an embodiment of a non-slip structure for a suitcase lid and a suitcase.

[0039] One embodiment of the anti-slip structure for a box lid includes:

[0040] Several first anti-slip patterns 5, each first anti-slip pattern 5 is in the shape of a straight strip, the first anti-slip pattern 5 extends horizontally along the side of the lid, and two adjacent first anti-slip patterns 5 are spaced apart.

[0041] Several second anti-slip patterns 6, the second anti-slip patterns 6 are oblique strips, and the second anti-slip patterns 6 extend obliquely along the outer end face of the box cover;

[0042] The number of second anti-slip patterns 6 is the same as that of first anti-slip patterns 5. One end of the second anti-slip pattern 6 is connected to the first anti-slip pattern 5, and the other end extends obliquely away from the first anti-slip pattern 5.

[0043] It is easy to understand that in this embodiment, several straight first anti-slip patterns 5 extend horizontally along the side of the lid, with gaps between adjacent ones, which can generate frictional resistance against horizontal forces; several oblique second anti-slip patterns 6 are the same number as the first anti-slip patterns 5, connected at one end and extending obliquely at the other end, which can cope with oblique forces. The combination of the two forms a multi-directional anti-slip system that can resist both horizontal and oblique sliding tendencies.

[0044] In some specific embodiments of this utility model, the first anti-slip texture 5 and the second anti-slip texture 6 can be raised and set on the outer surface of the box cover.

[0045] It is easy to understand that in this embodiment, the first anti-slip texture 5 and the second anti-slip texture 6 are raised on the outer surface of the box cover. The raised structure can be embedded in the tiny depressions of the supporting surface, such as the ground or tabletop, to increase the roughness of the contact surface and improve the friction.

[0046] In some specific embodiments of this utility model, the first anti-slip pattern 5 and the second anti-slip pattern 6 can be connected to form an anti-slip strip structure, and the two adjacent anti-slip strip structures are parallel to each other.

[0047] It is easy to understand that in this embodiment, the first anti-slip texture 5 and the second anti-slip texture 6 are connected to form an anti-slip strip structure, and the adjacent anti-slip strip structures are parallel to each other. This regular arrangement makes the force even when the box cover contacts the supporting surface, and each anti-slip strip can share the anti-slip pressure.

[0048] In some specific embodiments of this utility model, the anti-slip strip structure can have multiple strips, and a groove 7 is formed between two adjacent anti-slip strip structures. The groove 7 is adapted to the protrusions of the first anti-slip texture 5 and the second anti-slip texture 6.

[0049] It is easy to understand that in this embodiment, the groove 7 between adjacent anti-slip strip structures is adapted to the protrusions of the first anti-slip texture 5 and the second anti-slip texture 6. The protrusion of the support surface can enter the groove 7, and at the same time, the anti-slip textures on both sides of the groove 7 form a pinching friction, which enhances the biting force.

[0050] In some specific embodiments of this utility model, both the first anti-slip texture 5 and the second anti-slip texture 6 can be in the form of an arc shape.

[0051] It is easy to understand that, by setting the first anti-slip texture 5 and the second anti-slip texture 6 in an arc shape, this embodiment can maintain a good contact area when subjected to force in different directions, disperse stress, and avoid local wear.

[0052] In some specific embodiments of this utility model, the diameter of the arc-shaped structure can be 5-8mm, the height can be 3-5mm, and the distance between adjacent protrusions can be 10-15mm.

[0053] It is easy to understand that by setting the size of the lid to 5-8mm in diameter, 3-5mm in height, and 10-15mm between adjacent parts, this embodiment ensures that the height and density of the anti-slip texture are sufficient to provide enough friction, while avoiding the impact on the appearance and portability of the lid due to excessive size.

[0054] Reference Figure 1 and Figure 2 In this embodiment, a suitcase includes a first cover 1, a second cover 2, omnidirectional casters 4, a push-pull rod 13, and a lid anti-slip structure.

[0055] The first cover 1 and the second cover 2 are hinged together. The anti-slip structure of the lid is formed on the outer surface of the first cover 1 and the second cover 2. The universal casters 4 are set at the bottom of the first cover 1 and the second cover 2. A push-pull seat 12 is set on one side of the first cover 1. The push-pull rod 13 is telescopically set in the push-pull seat 12. The first cover 1 and the second cover 2 are also provided with a zipper assembly for locking. The first cover 1 is also provided with a handle 8, which is a flat strip structure. There are four universal casters 4, which are arranged symmetrically in pairs. The bottom of the first cover 1 and the second cover 2 are both provided with a reinforcing seat 3. The universal casters 4 are connected to the first cover 1 and the second cover 2 through the reinforcing seat 3.

[0056] It is easy to understand that in this embodiment, the anti-slip structure on the outer surface of the first cover 1 and the second cover 2 provides an anti-slip function when it comes into contact with the supporting surface; the universal casters 4 facilitate movement, the push-pull rod 13 facilitates dragging, and the zipper assembly enables locking. All parts work together to ensure the functionality of the suitcase; by setting four symmetrical universal casters 4 connected to the first cover 1 and the second cover 2 through the reinforcing seat 3, the reinforcing seat 3 enhances the connection strength, making the universal casters 4 more stable when the suitcase is moved and placed.

[0057] Reference Figure 3 and Figure 4In some specific embodiments of this utility model, the zipper assembly may include a zipper 11 disposed on the opposite side of the first cover 1 and the second cover 2, and a lock 9 disposed on the first cover 1 for locking the first cover 1 and the second cover 2. A protective folding edge 10 is also provided at the port on the opposite side of the first cover 1 and the second cover 2, the protective folding edge 10 covering the outside of the zipper 11. Both the first cover 1 and the second cover 2 are provided with an inner lining 14. The opening of the first cover 1 and the second cover 2... A reinforcing frame 15 is provided at the opening. The reinforcing frame 15 includes a flat frame 151 and a vertical frame 152 on the top surface of the flat frame 151. The vertical frame 152 is fitted to the inner wall of the first cover 1 and the second cover 2. A positioning hole 153 is provided on the vertical frame 152. A rivet structure 16 is provided in the positioning hole 153. A rivet hole for inserting the rivet structure 16 is provided on the inner wall of the first cover 1 and the second cover 2. The reinforcing frame 15 is fixed in the rivet hole on the first cover 1 and the second cover 2 by the rivet structure 16.

[0058] It is easy to understand that in this embodiment, the zipper 11 is used to close the first cover 1 and the second cover 2, the lock 9 is used to lock it, and the protective fold 10 covers the zipper 11 to prevent it from being damaged by external forces. The inner lining 14 is used to improve the comfort of the interior. The reinforcing frame 15 is fixed to the first cover 1 and the second cover 2 by the flat frame 151, the vertical frame 152 and the rivet structure 16, which enhances the structural strength of the opening and prevents the cover from deforming under force.

[0059] Reference Figure 5 and Figure 6 In some specific embodiments of this utility model, the rivet structure 16 may include a fixing sleeve 161 fixed in the rivet hole, a pull-out sleeve 162 inserted inside the fixing sleeve 161, and an arc-shaped plate 165 extending axially from one end of the pull-out sleeve 162 into the fixing sleeve 161. Multiple arc-shaped plates 165 are arranged in a circumferential array. A wedge-shaped block 166 extending radially is provided on the outer wall of the arc-shaped plate 165, and a corresponding wedge-shaped block 166 is provided on the inner wall of the fixing sleeve 161. The wedge groove 167 allows the wedge block 166 to be inserted. The pull sleeve 162 has a pull rod 168 that can slide along its axial direction. The outer wall of the pull rod 168 presses against the inner wall of the arc plate 165 to make the wedge block 166 be locked in the wedge groove 167. A return spring 169 is also sleeved on the pull rod 168. The bottom end of the return spring 169 is connected to the outer wall of the pull rod 168, and the top end of the pull rod 168 is connected to the inner wall of the pull sleeve 162. In the initial state, the pull rod 168 has a tendency to slide into the fixed sleeve 161.

[0060] It is easy to understand that in this embodiment, the fixing sleeve 161 is pre-fixed in the rivet hole on the inner wall of the cover as the basic component for connection. After the pull-out sleeve 162 is inserted into the fixing sleeve 161, the multiple arc-shaped plates 165 in a circular array connected to one end of the pull-out sleeve 162 extending into the fixing sleeve 161 are in the initial state; the pull rod 168 inside the pull-out sleeve 162 has a tendency to slide into the fixing sleeve 161 under the elastic force of the return spring 169. The outer wall of the pull rod 168 will squeeze the inner wall of the arc-shaped plate 165, forcing the arc-shaped plate 165 to expand outward, thereby causing the wedge block 166 on the outer wall of the arc-shaped plate 165 to engage in the corresponding wedge groove 167 on the inner wall of the fixing sleeve 161; through the tight engagement of the wedge block 166 and the wedge groove 167, and the pressure continuously provided by the return spring 169, the pull-out sleeve 162 and the fixing sleeve 161 are firmly connected, thereby stably fixing the reinforcing frame 15 to the first cover 1 and the second cover 2.

[0061] The inclined surfaces of the wedge block 166 and the wedge groove 167 can generate a large locking force. Combined with the continuous pre-tension of the return spring 169, it effectively prevents loosening between the pull-out sleeve 162 and the fixed sleeve 161, ensuring the connection stability between the reinforcing frame 15 and the cover, and resisting vibration and impact during the use of the suitcase. The circumferential array of the arc plate 165 makes the force uniform, avoids excessive local stress that could lead to structural damage, extends the service life of the rivet structure 16, and indirectly ensures the reinforcing effect of the reinforcing frame 15 on the opening of the cover.

[0062] Furthermore, when disassembling the rivet structure 16, simply pull the pull rod 168 to make it slide outwards from the pull sleeve 162, overcoming the elastic force of the return spring 169. At this time, the squeezing force of the pull rod 168 on the inner wall of the arc plate 165 disappears, and the arc plate 165 contracts under its own elasticity, causing the wedge block 166 to disengage from the wedge groove 167. Subsequently, the pull sleeve 162 can be easily pulled out from the fixed sleeve 161, realizing the separation of the reinforcing frame 15 from the first cover 1 and the second cover 2. This structure does not require complex tools, the disassembly process is simple and convenient, and it is easy to repair and replace the reinforcing frame 15 or the cover, reducing maintenance costs and difficulties.

[0063] In some specific embodiments of this utility model, a positioning rod 163 may be provided at one end of the pull-out sleeve 162 extending to the outside of the fixed sleeve 161, and a positioning groove 164 for the positioning rod 163 to be inserted is provided on the end face of the fixed sleeve 161. When the pull-out sleeve 162 is inserted into the fixed sleeve 161, the positioning rod 163 is inserted into the positioning groove 164.

[0064] It is easy to understand that in this embodiment, when the pull-out sleeve 162 is inserted into the fixed sleeve 161, the positioning rod 163 extending to the outer end of the pull-out sleeve 162 will align with the positioning groove 164 on the end face of the fixed sleeve 161 and enter the positioning groove 164 as the pull-out sleeve 162 is inserted. The cooperation between the positioning rod 163 and the positioning groove 164 restricts the circumferential rotation of the pull-out sleeve 162 in the fixed sleeve 161, ensuring that the wedge block 166 on the arc plate 165 can be accurately aligned with the wedge groove 167 on the inner wall of the fixed sleeve 161, thus ensuring the smooth progress of the subsequent connection process.

[0065] The cooperation between the positioning rod 163 and the positioning groove 164 provides precise positioning for the connection between the pull-out sleeve 162 and the fixed sleeve 161, avoiding the inability of the wedge block 166 and the wedge groove 167 to accurately engage due to circumferential misalignment, thereby improving assembly efficiency and quality.

[0066] The anti-slip structure of the lid and the suitcase itself, through a combination of multi-directional anti-slip textures and overall structure, achieve an all-directional anti-slip effect. The specific working principle is as follows:

[0067] In the anti-slip structure of the box lid, several straight first anti-slip ridges 5 extend horizontally along the side of the box lid, and adjacent first anti-slip ridges 5 maintain a set distance, which can provide basic frictional resistance for the box lid in the horizontal direction. Several oblique second anti-slip ridges 6 are the same number as the first anti-slip ridges 5, one end of which is connected to the first anti-slip ridge 5, and the other end extends obliquely away from the first anti-slip ridge 5, which can resist oblique forces.

[0068] Both the first anti-slip texture 5 and the second anti-slip texture 6 are raised on the outer surface of the lid, forming an anti-slip strip structure. Adjacent anti-slip strip structures are parallel to each other. This arrangement creates a regular pattern of anti-slip strips on the lid surface. When the lid contacts the supporting surface, the raised anti-slip textures embed into the tiny depressions of the supporting surface, increasing the roughness of the contact surface. Simultaneously, the grooves 7 formed between adjacent anti-slip strip structures are adapted to the raised parts of the first and second anti-slip textures 5 and 6. This not only accommodates the raised portion of the supporting surface but also creates a pinching friction effect through the anti-slip textures on both sides of the groove, further enhancing the anti-slip performance.

[0069] When both the first anti-slip texture 5 and the second anti-slip texture 6 are arc-shaped, the arc-shaped design allows the anti-slip texture to maintain a good contact area when subjected to force in different directions, avoiding stress concentration. At the same time, the specific size and spacing settings can reduce the impact on the appearance and portability of the case lid while ensuring the anti-slip effect.

[0070] For suitcases incorporating this anti-slip lid structure, the first lid 1 and the second lid 2 are hinged together, with the anti-slip structure formed on their outer surfaces. When the suitcase is tilted, the outer surface of either the first lid 1 or the second lid 2 contacts the supporting surface, at which point the anti-slip structure comes into play: the horizontally extending first anti-slip ridge 5 resists the tendency to slide along the side of the lid, while the inclined second anti-slip ridge 6 provides resistance against forces in the inclined direction. Together, they effectively prevent the suitcase from sliding due to external forces or the component of gravity. Four omnidirectional casters 4 at the bottom of the suitcase are symmetrically arranged in pairs and connected to the first lid 1 and the second lid 2 via reinforcing seats 3. The reinforcing seats 3 enhance the stability of the connection between the omnidirectional casters 4 and the lid. A push-pull rod 13 is telescopically mounted within a push-pull seat 12 on one side of the first lid 1, facilitating the user's dragging of the suitcase, while a flat, strap-shaped handle 8 on the first lid 1 facilitates manual carrying.

[0071] The zipper assembly includes a zipper 11 and a lock 9, which lock the first cover 1 and the second cover 2. The protective folds 10 at the opposite ends of the two covers cover the outside of the zipper 11, thus protecting the zipper 11. The inner lining 14 inside the first cover 1 and the second cover 2 improves the comfort of use. The reinforcing frame 15 at the opening is fitted to the inner wall of the cover through a flat frame 151 and a vertical frame 152. The positioning hole 153 on the vertical frame 152 is equipped with a rivet structure 16 to fix the reinforcing frame 15 to the cover, which enhances the structural strength of the opening of the cover and ensures that the cover is not easily deformed when subjected to force, indirectly ensuring the stable operation of the anti-slip structure.

[0072] In summary, this solution, through its multi-directional anti-slip texture, the combination of raised and recessed areas, and the reinforcement of the overall structure, effectively solves the problem that existing anti-slip textures can only provide limited resistance in one direction, significantly improving the anti-slip stability of suitcases in scenarios such as tipping over.

[0073] In this specification, the terms "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A box lid anti-slip structure, characterized in that, include: Several first anti-slip patterns (5) are provided. The first anti-slip patterns (5) are straight strips. The first anti-slip patterns (5) extend horizontally along the side of the box cover. The first anti-slip patterns (5) are spaced apart from each other. Several second anti-slip patterns (6) are oblique strips and extend obliquely along the outer end face of the box cover; The number of the second anti-slip pattern (6) is the same as that of the first anti-slip pattern (5). One end of the second anti-slip pattern (6) is connected to the first anti-slip pattern (5), and the other end extends obliquely away from the first anti-slip pattern (5).

2. The anti-slip structure for a box lid according to claim 1, characterized in that: The first anti-slip texture (5) and the second anti-slip texture (6) are raised on the outer surface of the box cover.

3. The anti-slip structure for a box lid according to claim 1, characterized in that: The first anti-slip pattern (5) and the second anti-slip pattern (6) are connected to form an anti-slip strip structure, and the two adjacent anti-slip strip structures are parallel to each other.

4. The anti-slip structure for a box lid according to claim 3, characterized in that: The anti-slip strip structure has multiple strips, and a groove (7) is formed between two adjacent anti-slip strip structures. The groove (7) is adapted to the protrusions of the first anti-slip pattern (5) and the second anti-slip pattern (6).

5. The anti-slip structure for a box lid according to claim 1, characterized in that: Both the first anti-slip texture (5) and the second anti-slip texture (6) are arc-shaped structures.

6. The anti-slip structure for a box lid according to claim 5, characterized in that: The arc-shaped structure has a diameter of 5-8 mm, a height of 3-5 mm, and a distance of 10-15 mm between adjacent protrusions.

7. A suitcase, characterized in that: It includes a first cover (1), a second cover (2), omnidirectional casters (4), a push-pull rod (13), and a box cover anti-slip structure as described in any one of claims 1 to 6; The first cover (1) and the second cover (2) are hinged together by a hinge. The anti-slip structure of the box cover is formed on the outer surface of the first cover (1) and the second cover (2). The universal moving wheel (4) is set at the bottom of the first cover (1) and the second cover (2). A push-pull seat (12) is set on one side of the first cover (1). The push-pull rod (13) is telescopically set in the push-pull seat (12). The first cover (1) and the second cover (2) are also provided with a zipper assembly for locking. The first cover (1) is also provided with a handle (8). The handle (8) has a flat strip structure. There are four universal moving wheels (4). The four universal moving wheels (4) are symmetrically arranged in pairs. The bottom of the first cover (1) and the second cover (2) are both provided with a reinforcing seat (3). The universal moving wheel (4) is connected to the first cover (1) and the second cover (2) through the reinforcing seat (3).

8. A suitcase according to claim 7, characterized in that: The zipper assembly includes a zipper (11) disposed on the opposite side of the first cover (1) and the second cover (2) and a lock (9) disposed on the first cover (1) for locking the first cover (1) and the second cover (2). A protective fold (10) is also provided at the port on the opposite side of the first cover (1) and the second cover (2), and the protective fold (10) covers the outside of the zipper (11). The first cover (1) and the second cover (2) are both provided with an inner lining (14). A reinforcing frame (15) is provided at the opening of the first cover (1) and the second cover (2). The reinforcing frame (15) includes a flat frame (151). A vertical frame (152) is provided on the top surface of the flat frame (151). The vertical frame (152) is attached to the inner wall of the first cover (1) and the second cover (2). A positioning hole (153) is provided on the vertical frame (152). A rivet structure (16) is provided in the positioning hole (153). A rivet hole for inserting the rivet structure (16) is provided on the inner wall of the first cover (1) and the second cover (2). The reinforcing frame (15) is fixed in the rivet hole on the first cover (1) and the second cover (2) by the rivet structure (16).

9. A suitcase according to claim 8, characterized in that: The rivet structure (16) includes a fixing sleeve (161) fixed in the rivet hole. A pull-out sleeve (162) is inserted into the fixing sleeve (161). One end of the pull-out sleeve (162) extending into the fixing sleeve (161) is connected to an arc-shaped plate (165) extending along its axial direction. Multiple arc-shaped plates (165) are provided, and the multiple arc-shaped plates (165) are arranged in a circumferential array. A wedge-shaped block (166) extending radially is provided on the outer wall of the arc-shaped plate (165). A wedge-shaped part corresponding to the wedge-shaped block (166) and capable of being engaged by the wedge-shaped block (166) is provided on the inner wall of the fixing sleeve (161). The groove (167) has a pull rod (168) that can slide along its axial direction inside the pull sleeve (162). The outer wall of the pull rod (168) presses against the inner wall of the arc plate (165) to make the wedge block (166) clamp into the inside of the wedge groove (167). A return spring (169) is also sleeved on the pull rod (168). The bottom end of the return spring (169) is connected to the outer wall of the pull rod (168), and the top end of the pull rod (168) is connected to the inner wall of the pull sleeve (162). In the initial state, the pull rod (168) tends to slide into the fixed sleeve (161).

10. A suitcase according to claim 9, characterized in that: A positioning rod (163) is provided at one end of the pull-out sleeve (162) extending to the outside of the fixed sleeve (161). A positioning groove (164) for the positioning rod (163) to be inserted is provided on the end face of the fixed sleeve (161). When the pull-out sleeve (162) is inserted into the fixed sleeve (161), the positioning rod (163) is inserted into the positioning groove (164).

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