Four-folding luggage case

Abstract

The invention relates to the technical field of luggage cases and discloses a four-fold luggage case which comprises four fan-shaped sub-case bodies, the four fan-shaped sub-case bodies can be gathered and combined to form a cylindrical luggage case body or can be dispersed and unfolded to expose the inner end face, a storage cavity is formed in each fan-shaped sub-case body, and an opening and closing door is arranged on the inner end face of each fan-shaped sub-case body. And jewel cases are arranged on part of the fan-shaped sub box bodies. According to the four-folding luggage case, the integrated structural design mode of a traditional luggage case is broken through, multiple scenes and special storage demands of women during travel are fully considered, the four fan-shaped sub-case bodies are gathered and combined at ordinary times and are tightly assembled into the cylindrical luggage case main body, overall carrying, consignment and conventional placement are facilitated, and the luggage case is convenient to carry and store. The basic storage and transportation function requirements of the luggage case are met. When a user needs to take articles, the four fan-shaped sub-box bodies are dispersed and unfolded and accurately positioned to the sub-box body positions where the articles need to be stored, and the jewelry box provides an independent and proper storage space for jewelry.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage cases, and in particular to a four-folding luggage case. Background Art

[0002] In the context of the booming development of modern transportation and travel industries, suitcases are the key carriers for people to travel and store things. The rationality of their design and functionality play a vital role in improving the travel experience. With the continuous segmentation of social consumer groups, the personalized and refined demands of female travelers for suitcase products have become increasingly prominent. Traditional suitcase products have exposed many insurmountable defects when responding to women's special storage demands.

[0003] From the perspective of travel behavior patterns, women need to carry a wide variety of personal belongings due to diversified travel scenarios such as social, business, and leisure travel. In terms of clothing, it covers daily wear, formal wear, casual wear, shoes, and various accessories required for matching, which is quite considerable; bags are even more diverse, and handbags and shoulder bags are not only used to hold small items, but also must-have items for styling; jewelry is also indispensable, necklaces, bracelets, earrings and other exquisite accessories, with delicate materials and exquisite styles. The single space planning of traditional suitcases is unable to cope with such a complex combination of items with different characteristics. The disorderly stacking of items not only results in low space utilization, but also greatly reduces the storage capacity of the box, which cannot meet the requirements of women to carry "large quantity and complete" travel items.

[0004] In terms of accessibility, traditional suitcases use an integrated box cavity design, with only a few simple compartments or net bags inside for rough partitioning. When women urgently need to take a piece of clothing, a specific bag or jewelry during their trip, they have to conduct large-scale rummaging operations in the face of mixed luggage. This process not only consumes a lot of time and energy, and is very likely to delay travel arrangements, but also inevitably disrupts the original storage order in the suitcase, making it quite difficult to reorganize it later. What's worse is that in a mixed state, hard jewelry is easy to scratch and hook soft clothing fabrics, causing the clothing to be brushed and damaged, and the jewelry may also be deformed and damaged, causing unnecessary property losses to the user. In addition, bags are also easily squeezed and deformed, which not only affects the appearance, but may also damage the internal structure and hardware accessories.

[0005] Therefore, with the continuous acceleration of the pace of travel and the gradual improvement of people's requirements for travel quality, efficient, convenient and accurate access to items has become the core demand for travel storage. Current travel scenarios often involve frequent transfers, emergency changes of clothes, temporary matching of jewelry, etc. Traditional suitcases are difficult to adapt to such ever-changing usage scenarios and cannot provide timely and smooth item retrieval experience for women. Therefore, it is urgent to develop a new suitcase based on the refined storage needs of female users. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a four-fold suitcase, aiming to meet the refined storage needs of female users.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A four-fold suitcase comprises four fan-shaped sub-boxes, which can be gathered and combined to form a cylindrical suitcase body or spread out to expose inner end faces. Each fan-shaped sub-box is provided with a storage cavity and an opening and closing door at its inner end face, and some of the fan-shaped sub-boxes are provided with jewelry boxes.

[0009] As a further improvement of the above technical solution, the four fan-shaped sub-boxes are respectively a first fan-shaped sub-box, a second fan-shaped sub-box, a third fan-shaped sub-box and a fourth fan-shaped sub-box, a vertical side of the first fan-shaped sub-box is pivotally connected to a vertical side of the second fan-shaped sub-box, another vertical side of the second fan-shaped sub-box is pivotally connected to a vertical side of the third fan-shaped sub-box, and another vertical side of the third fan-shaped sub-box is pivotally connected to a vertical side of the fourth fan-shaped sub-box.

[0010] As a further improvement of the above technical solution, casters are arranged at the bottom of the first fan-shaped sub-box, the second fan-shaped sub-box, the third fan-shaped sub-box and the fourth fan-shaped sub-box.

[0011] As a further improvement of the above technical solution, the first fan-shaped sub-box, the second fan-shaped sub-box, the third fan-shaped sub-box and the fourth fan-shaped sub-box are put on the belt and are combined into a cylindrical suitcase body through the belt constraint.

[0012] As a further improvement of the above technical solution, the first fan-shaped sub-box, the second fan-shaped sub-box, the third fan-shaped sub-box and the fourth fan-shaped sub-box are all provided with buckles for the belt to pass through.

[0013] As a further improvement of the above technical solution, two groups of lying protruding feet are provided on the outer curved surface of the second sector-shaped sub-box.

[0014] As a further improvement of the above technical solution, the first sector-shaped sub-box and the fourth sector-shaped sub-box are locked and connected by a password lock.

[0015] As a further improvement of the above technical solution, a handle is provided on the outer arc surface of the fourth sector-shaped sub-box.

[0016] As a further improvement of the above technical solution, a telescopic pull rod is provided on the second fan-shaped sub-box.

[0017] As a further improvement of the above technical solution, a layer plate is provided in the storage cavity of the first fan-shaped sub-box, and the layer plate divides the storage cavity into an upper storage compartment and a lower storage compartment; the third fan-shaped sub-box is provided with the jewelry box at the top of the storage cavity and the jewelry box can be flipped horizontally to be displayed outward.

[0018] Beneficial effects of the present invention: The four-folding suitcase provided by the present invention breaks the integrated structural design mode of the traditional suitcase, fully considers the diverse travel scenarios and special storage demands of women, innovates from the aspects of structural design and functional zoning, and meets women's personalized and refined pursuit of suitcase products with refined storage methods, thereby improving women's travel experience; usually, the four fan-shaped sub-boxes are gathered and combined, tightly assembled into a cylindrical suitcase body, which is convenient for overall handling, consignment and regular placement, and meets the basic storage and transportation functional requirements of the suitcase. When the user needs to take items, the four fan-shaped sub-boxes are dispersed and unfolded to expose the inner end faces, so that the user can clearly see the inner end faces of each sub-box and the corresponding opening and closing doors, and accurately locate the sub-box position where the required items are stored; each fan-shaped sub-box is provided with a storage cavity for classified storage of different items, and a jewelry box is specially provided on some fan-shaped sub-boxes to provide an independent and proper storage space for delicate jewelry to avoid scratching and hooking with other hard objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional structure of the four-fold suitcase provided by the present invention when in travel state Figure 1 .

[0020] Figure 2 The three-dimensional structure of the four-fold suitcase provided by the present invention when in travel state Figure 2 .

[0021] Figure 3 This is a three-dimensional diagram of the four-fold suitcase provided by the present invention when it is unfolded for use.

[0022] Explanation of main component symbols: 11-first fan-shaped sub-box, 12-second fan-shaped sub-box, 13-third fan-shaped sub-box, 14-fourth fan-shaped sub-box, 15-opening and closing door, 16-jewelry box, 17-layer board, 18-upper storage compartment, 19-lower storage compartment, 2-castor, 31-belt, 32-fastener, 4-lying protruding foot, 5-combination lock, 6-handle, 7-telescopic pull rod. DETAILED DESCRIPTION

[0023] The present invention provides a four-fold suitcase. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0024] See also Figures 1 to 3 The present invention provides a four-fold suitcase, including four fan-shaped sub-boxes, which can be gathered and combined to form a cylindrical suitcase body or dispersed and unfolded to expose the inner end surface. Each fan-shaped sub-box is provided with a storage cavity and an opening and closing door 15 is provided at its inner end surface, and some of the fan-shaped sub-boxes are provided with jewelry boxes 16.

[0025] In view of the fact that women need to carry a lot of complicated items such as clothes, bags, and jewelry when traveling, the four fan-shaped sub-boxes are independently stored, breaking the traditional single-box space planning mode. Users can flexibly allocate the storage tasks of each fan-shaped sub-box according to the type and size of the items. For example, clothes can be neatly stacked in one fan-shaped sub-box and bags can be arranged in an orderly manner in another fan-shaped sub-box to prevent disorderly stacking of items, which greatly improves the space utilization rate, meets the "large and complete" storage requirements of women when traveling, and expands the actual available capacity of the suitcase.

[0026] In order to solve the technical problem that the integrated box cavity of traditional suitcases makes it difficult for women to find items and requires large-scale rummaging, after the four-fold suitcase is unfolded, the fan-shaped sub-boxes are clearly visible, and the opening and closing door 15 is convenient to open and close. The user can quickly lock the target item and save time and energy in rummaging. It is suitable for the current fast-paced scenarios such as frequent transfers, emergency changes of clothes, and temporary matching of jewelry, so as to avoid delaying travel arrangements due to searching; and when reorganizing later, since the items are originally stored in an orderly manner, the operation is also simpler and more efficient.

[0027] Preferably, the specially arranged jewelry box 16 provides an independent and stable space for necklaces, bracelets, earrings and other delicate accessories, avoiding the risk of scratches caused by mixing with hard objects, hooking and causing damage to clothes, and deformation and damage to jewelry; at the same time, when each fan-shaped sub-box stores bags, it can reduce the squeezing and deformation of the bags, protect the aesthetic appearance of the bags and the internal structure and hardware accessories of the bags, and reduce the probability of property loss for users.

[0028] The four-folding suitcase provided by the present invention breaks the integrated structural design mode of the traditional suitcase, fully considers the multiple travel scenarios and special storage demands of women, innovates from the aspects of structural design and functional zoning, and meets the personalized and refined pursuit of women for suitcase products with refined storage methods, thereby improving the travel experience of women; the four fan-shaped sub-boxes are usually gathered and combined, and tightly assembled into a cylindrical suitcase body, which is convenient for overall handling, consignment and regular placement, and meets the basic storage and transportation functional requirements of the suitcase. When the user needs to take items, the four fan-shaped sub-boxes are dispersed and unfolded to expose the inner end faces, and the user can clearly see the inner end faces of each sub-box and the corresponding opening and closing door 15, and accurately locate the sub-box position where the required items are stored; each fan-shaped sub-box is provided with a storage cavity for classified storage of different items, and a jewelry box 16 is specially provided on some fan-shaped sub-boxes to provide an independent and proper storage space for delicate jewelry to avoid scratching and hooking with other hard objects.

[0029] For convenience in the present embodiment, the four fan-shaped sub-boxes are respectively the first fan-shaped sub-box 11, the second fan-shaped sub-box 12, the third fan-shaped sub-box 13 and the fourth fan-shaped sub-box 14, a vertical side of the first fan-shaped sub-box 11 is pivotally connected to a vertical side of the second fan-shaped sub-box 12, another vertical side of the second fan-shaped sub-box 12 is pivotally connected to a vertical side of the third fan-shaped sub-box 13, and another vertical side of the third fan-shaped sub-box 13 is pivotally connected to a vertical side of the fourth fan-shaped sub-box 14. When the suitcase is not in use, the four fan-shaped sub-boxes can be pivotally connected to achieve four folding, and the overall shape of the folded suitcase is more regular and compact, saving assembly time. On the contrary, the user only needs to gently pull or push one of the fan-shaped sub-boxes, and the remaining sub-boxes will be linked therewith to achieve fast and convenient opening and closing, which greatly saves time and energy compared with the need for separate operations of the independently arranged sub-boxes, especially when traveling in a hurry, this convenient opening and closing method is more advantageous.

[0030] It is understandable that when the main body of the suitcase is opened 180 degrees, it will take on the shape of a straight screen, and the inner end faces of the four fan-shaped sub-boxes will be fully presented, forming an extremely open visual storage area, specifically four independent partitions, which can be set as clothing area, shoe and bag area, jewelry area, sundries area, etc., and users do not need to search as laboriously as using traditional suitcases. For the numerous small items that women carry when traveling, such as a variety of necklaces, bracelets and other jewelry needed to match different clothes, or various small accessories, and commonly used cosmetics samples, the placement of items is clear and intuitive, which greatly improves the search efficiency. Whether it is a tight schedule or an item is urgently needed, it can be quickly located and taken.

[0031] In addition, women often need to change clothes and match jewelry when traveling. At this time, the suitcase that unfolds into a straight-line screen can be transformed into a temporary matching workbench. When waiting at the airport or staying in a hotel room for a short time, the user can spread the clothes flat on the unfolded sub-box, look at the mirror, and quickly and easily select the appropriate bags and jewelry from different sub-boxes for matching. The matching process is orderly, and there is no need to worry about the chaotic accumulation of items affecting the selection, which perfectly meets the refined travel needs of women.

[0032] Specifically, casters 2 are provided at the bottom of the first sector-shaped sub-box 11, the second sector-shaped sub-box 12, the third sector-shaped sub-box 13, and the fourth sector-shaped sub-box 14. After being equipped with casters 2, whether the four sector-shaped sub-boxes are gathered into a cylindrical luggage main body or unfolded into a straight-line screen style, the user only needs to gently push or pull the luggage to smoothly move with the help of casters 2, and easily shuttle through travel scenes such as airport halls, train platforms, and hotel corridors, which greatly reduces the burden of carrying, saves physical strength, and makes the travel process more relaxed.

[0033] When the suitcase is unfolded into a straight-line screen shape for storing and organizing items, the casters 2 allow the user to fine-tune the position of the suitcase at any time, and easily bring it close to one's seat, storage table and other operating areas; if the user needs to frequently change positions to check items in different sub-boxes during the organizing process, there is no need to move the entire suitcase laboriously, and the casters 2 can be rolled to quickly adjust the position, which greatly saves organizing time, improves storage efficiency, and makes the item organizing process for women during travel smoother and more efficient.

[0034] In order to prevent the fan-shaped sub-boxes from accidentally loosening during the transportation of the luggage case body, the first fan-shaped sub-box 11, the second fan-shaped sub-box 12, the third fan-shaped sub-box 13 and the fourth fan-shaped sub-box 14 are put on the belt 31, and the belt 31 is used to constrain the cylindrical luggage case body, and it is easy and quick to unfasten or fasten the belt 31. The restraint of the belt 31 provides reliable integrity and stability for the luggage case. The belt 31 tightly surrounds each fan-shaped sub-box and can effectively resist external force impact and bumps and shakes during daily transportation and consignment. Whether it is roughly loaded and unloaded by airport baggage handlers or vibrated on the train luggage rack as the train moves, the belt 31 is like a "seat belt" that firmly fixes the position of the sub-box, preventing the fan-shaped sub-boxes from accidentally dispersing or dislocating, and protecting the safety of the items in the box in all directions.

[0035] It should be emphasized that the belt 31 is also an integral part of the appearance of the suitcase. It has various styles, rich colors, and a wide range of materials. Female users can choose the belt 31 that suits their personal style as needed. Pairing it with a fashionable leather belt 31 adds a refined texture to the suitcase; choosing a bright color and a unique pattern of a braided belt 31 instantly turns the suitcase into a trendy item, highlighting individual aesthetics, making the suitcase not only a storage tool, but also a fashionable travel accessory.

[0036] Furthermore, the first fan-shaped sub-box 11, the second fan-shaped sub-box 12, the third fan-shaped sub-box 13 and the fourth fan-shaped sub-box 14 are all provided with a fastener 32 for the belt 31 to pass through. The fastener 32 provides a precise fixed path and position for the belt 31, preventing the belt 31 from moving up and down, ensuring that the belt 31 can fit the contour of the box tightly when it surrounds the four fan-shaped sub-boxes, and firmly bind the fan-shaped sub-boxes together. No matter how bumpy the journey is or what kind of external force the suitcase is subjected to, the belt 31 will not easily shift or slide, maintaining the compact and stable cylindrical structure of the suitcase body, effectively ensuring the safety of the internal items, and reducing the risk of items being damaged due to loose boxes.

[0037] In travel scenarios, it is often necessary to temporarily place the suitcase on various flat surfaces, such as the conveyor belt of security equipment, the luggage rack of high-speed trains, and the trunk of a car. Due to its shape characteristics, the cylindrical suitcase has the disadvantages of easy rolling and sliding. If it is touched by a slight external force or the ground is tilted, it may roll out of control. For this reason, two groups of horizontal protrusions 4 arranged on the outer arc surface of the second fan-shaped sub-box 12 are provided, and these two groups of horizontal protrusions 4 are like stable anti-rolling protrusions, which are in close contact with the placement plane to prevent accidental rolling, greatly reducing the potential risk of collision and damage of items in the box due to rolling.

[0038] The first sector-shaped sub-box 11 and the fourth sector-shaped sub-box 14 are locked and connected by a combination lock 5. When women travel, they store a large number of personal belongings in their luggage, including valuable jewelry, electronic products, important documents, cash, etc. The combination lock 5 builds a solid security line, effectively preventing unauthorized people from opening the luggage at will, reducing the risk of theft and loss of items, protecting the safety of the property in the luggage, and giving female travelers a full sense of security.

[0039] In the four-folding suitcase provided by the invention, two groups of belts 31 and password locks 5 are provided on the main body of the suitcase and arranged up and down. The two groups of belts 31 and password locks 5 are arranged up and down, which is equivalent to building a double stable defense line for the suitcase. The belts 31 are bound from the outside to provide an overall tightening and gathering effect for the suitcase to prevent the fan-shaped sub-boxes from accidentally dispersing; while the password locks 5 are locked from the key connection parts (the splicing of the first fan-shaped sub-box 11 and the fourth fan-shaped sub-box 14) to strengthen the stability of the structural connection. The two cooperate with each other to greatly enhance the firmness of the overall structure of the suitcase. Even in the event of a more severe external force impact, such as when the luggage is roughly loaded and unloaded during the check-in process, or when it shakes due to sudden braking on a vehicle, it can ensure that the suitcase remains in a completely closed state, effectively ensuring the safety of the items in the box and reducing the risk of damage or loss of items due to loose boxes and accidental opening.

[0040] From the appearance point of view, the two sets of belts 31 and the combination lock 5 are arranged up and down to form a symmetrical and coordinated aesthetic, making the overall shape of the suitcase more refined and regular, avoiding the visual abruptness of a single fixing or locking component. This symmetrical design conforms to the general aesthetic concept of the public and is more attractive to female users who pay attention to the appearance of travel items, making the suitcase not only a practical storage tool, but also a fashionable item that shows personal taste.

[0041] The following is a detailed introduction to the specific structure of each fan-shaped sub-box. The storage cavity of the first fan-shaped sub-box 11 is provided with a layer plate 17, which divides the storage cavity into an upper storage compartment 18 and a lower storage compartment 19. Women carry a variety of items when traveling, and the layer plate 17 accurately divides the storage cavity of the first fan-shaped sub-box 11 into upper and lower storage compartments 19, so that users can carefully classify the items according to their characteristics and frequency of use. The upper storage compartment can be used to place commonly used light clothing, scarves, shawls, etc., which are easy to take; the lower storage compartment is used to store larger and heavier shoes and spare bags to avoid heavy objects squeezing fragile items, realize efficient planning and reasonable allocation of space, prevent items from being stacked in a disorderly manner, and maximize the use of space in the box.

[0042] Jewelry is very important for women to match when traveling. The third fan-shaped sub-box 13 is provided with the jewelry box 16 at the top of the storage cavity; when viewed from a top-down angle, the jewelry box is fan-shaped and the jewelry box 16 can be flipped horizontally to be displayed outward. Create an independent and exclusive storage space for various necklaces, bracelets, earrings and other delicate accessories. The jewelry is neatly placed in it to avoid scratching and hooking with clothes and hard objects, reducing the risk of damage; female users can smoothly display the jewelry box 16 outward by pushing the side of the jewelry box 16, and all the accessories are clear at a glance, which is convenient and quick to choose, and meets the urgent needs of women for temporary matching when traveling. The number of jewelry boxes 16 is not limited, and can be set to one or more, and the storage cavity of the third fan-shaped sub-box 13 can store items normally.

[0043] In addition, the storage cavity volume configuration of the second fan-shaped sub-box 12 and the fourth fan-shaped sub-box 14 is maximized, which provides ample storage space for large items. Users do not need to squeeze or bend items to fit them into the suitcase, but can easily and neatly place them, which not only ensures the original shape of the items and avoids deformation and damage due to excessive squeezing, but also makes full use of the suitcase space, improves the overall storage efficiency, and makes travel preparations more relaxed and efficient.

[0044] Furthermore, the outer arc surface of the fourth sector-shaped sub-box 14 is provided with a handle 6. When women travel, it is common to carry a suitcase. The handle 6 is located in a conspicuous position and is easy to grasp, so that the user can quickly exert force to pull the suitcase, especially in scenes where it is inconvenient to drag the suitcase, such as going up and down stairs, entering and exiting elevators, etc., the hand tightly holds the handle 6, accurately controls the moving trajectory and balance of the suitcase, and easily carries it, saving effort and being efficient.

[0045] Furthermore, the second sector-shaped sub-box 12 is provided with a telescopic pull rod 7. The user only needs to easily pull out the pull rod to a suitable holding height, and using the lever principle, the user can drag the suitcase forward with less force. Whether in an open airport hall, a long train platform, or on the way from a parking lot to a terminal building, the burden can be greatly reduced, making travel more relaxed and comfortable, and saving physical strength for subsequent trips.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A four-fold suitcase, characterized in that: It comprises four fan-shaped sub-boxes, which can be gathered and combined to form a cylindrical suitcase body or spread out to expose the inner end surface. Each fan-shaped sub-box is provided with a storage cavity and an opening and closing door is provided at its inner end surface. Some fan-shaped sub-boxes are provided with jewelry boxes.

2. The four-fold suitcase according to claim 1, characterized in that: The four fan-shaped sub-boxes are respectively a first fan-shaped sub-box, a second fan-shaped sub-box, a third fan-shaped sub-box and a fourth fan-shaped sub-box. A vertical side of the first fan-shaped sub-box is pivotally connected to a vertical side of the second fan-shaped sub-box, another vertical side of the second fan-shaped sub-box is pivotally connected to a vertical side of the third fan-shaped sub-box, and another vertical side of the third fan-shaped sub-box is pivotally connected to a vertical side of the fourth fan-shaped sub-box.

3. The four-fold suitcase according to claim 2, characterized in that: The bottoms of the first sector-shaped sub-box, the second sector-shaped sub-box, the third sector-shaped sub-box and the fourth sector-shaped sub-box are all provided with casters.

4. The four-fold suitcase according to claim 3, characterized in that: The first sector-shaped sub-box, the second sector-shaped sub-box, the third sector-shaped sub-box and the fourth sector-shaped sub-box are sleeved on the belt and are restrained by the belt to form a cylindrical luggage case body.

5. The four-fold suitcase according to claim 4, characterized in that: The first fan-shaped sub-box, the second fan-shaped sub-box, the third fan-shaped sub-box and the fourth fan-shaped sub-box are all provided with buckles for the belt to pass through.

6. The four-fold suitcase according to claim 2, characterized in that: Two groups of lying protruding feet are arranged on the outer arc surface of the second sector-shaped sub-box.

7. The four-fold suitcase according to claim 2, characterized in that: The first sector-shaped sub-box and the fourth sector-shaped sub-box are locked and connected by a password lock.

8. The four-fold suitcase according to claim 2, characterized in that: A handle is provided on the outer arc surface of the fourth sector-shaped sub-box.

9. The four-fold suitcase according to claim 3, characterized in that: The second sector-shaped sub-box is provided with a telescopic pull rod.

10. The four-fold suitcase according to any one of claims 2 to 9, characterized in that: The storage cavity of the first fan-shaped sub-box is provided with a layer plate, which divides the storage cavity into an upper storage compartment and a lower storage compartment; the third fan-shaped sub-box is provided with the jewelry box at the top of the storage cavity, and the jewelry box can be horizontally flipped to be displayed outward.

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