Sewing-free trunk closed frame structure

Abstract

The utility model provides a sewing-free trunk closed frame structure which comprises a trunk upper shell, a trunk lower shell, an upper frame structure and a lower frame structure, the upper frame structure is installed on the lower edge of the trunk upper shell in a nested mode, and the lower frame structure is installed on the upper edge of the trunk lower shell in a nested mode. When the luggage case upper shell and the luggage case lower shell are closed, the upper frame structure and the lower frame structure are spliced with each other, a clamping structure is arranged on the splicing surface of the upper frame structure and the lower frame structure, and zipper penetrating grooves used for containing inner bag zippers are formed in the inner side faces, opposite to the luggage case inner cavity, of the upper frame structure and the lower frame structure. According to the luggage case, a zipper does not need to be sewn on the luggage case shell, only the framework needs to be directly prepared and sleeved on the luggage case shell to be bonded and fixed, after the luggage case upper shell or the luggage case lower shell is mutually buckled, the buckling and fixing arrangement of the upper framework and the lower framework is firmer, the installation is simple, the operation is convenient, and the production efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of luggage frame structure, and in particular to a seamless luggage closed frame structure. Background Technology

[0002] A suitcase, also known as a travel case or rolling case, is a box carried when traveling to store belongings; it is a type of luggage. Suitcases are typically used to hold clothing, personal care items, and souvenirs needed for a trip. Currently, suitcases on the market can be broadly divided into two types: zippered suitcases and framed suitcases. Zippered suitcases are lighter and more compact, making them popular. However, existing zippered suitcases suffer from drawbacks during production. The shell assembly is inconvenient, and the zippers require manual sewing, demanding more manpower and hindering automated production. Some use plastic snap-on zippers, but these are prone to breakage, resulting in lower security.

[0003] There is a need for a new type of luggage frame structure that can solve the problems mentioned above. Utility Model Content

[0004] This utility model provides a seamless closed frame structure for a suitcase. By technically modifying the existing suitcase structure, it solves the problems of existing suitcases requiring sewn zipper assembly, resulting in low production efficiency, poor sealing, and insufficient sturdiness at the suitcase closure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A seamless closed frame structure for a suitcase includes an upper shell, a lower shell, an upper frame structure, and a lower frame structure. The upper frame structure is nested along the lower edge of the upper shell, and the lower frame structure is nested along the upper edge of the lower shell. When the upper and lower shells are closed, the upper and lower frame structures are spliced ​​together, and a snap-fit ​​structure is provided at the splicing surface of the upper and lower frame structures. The inner surfaces of the upper and lower frame structures relative to the inner cavity of the suitcase have zipper grooves for inserting zippers for inner pockets.

[0007] Preferably, the engaging structure includes a first protrusion and a first recess, which are respectively disposed on one side of the opposite surfaces of the upper frame structure and the lower frame structure, and the first protrusion and the first recess are engaged with each other when the upper and lower shells of the luggage are closed.

[0008] Preferably, the inner pocket zipper inserted in the zipper slot includes a chain tooth portion, a chain fabric portion, and a reinforcing fabric edge. The chain fabric portions are connected to each other through the chain tooth portions, and a reinforcing fabric edge is provided on the outer side of the chain fabric portion. The reinforcing fabric edge is inserted and installed in the zipper slot.

[0009] Preferably, the upper and lower shells of the suitcase are rotatably connected by a hinge structure on one side of the back, and a locking structure is also provided between the upper and lower shells of the suitcase.

[0010] Preferably, the upper frame structure and the lower frame structure are provided with box mounting slots, and the upper frame structure and the lower frame structure are fitted and nested in the box mounting slots at the edge of the opening of the upper shell or the lower shell of the luggage.

[0011] Preferably, the inner wall of the mounting slot of the suitcase is provided with a second recess, and the side of the opening edge of the upper shell or lower shell of the suitcase is provided with a second protrusion, and the second protrusion and the second recess are engaged with each other.

[0012] Preferably, the mounting slot of the housing is encapsulated with potting compound, and the upper frame structure and the lower frame structure are fixed in the mounting slot of the housing by the potting compound.

[0013] Preferably, the upper frame structure and the lower frame structure are made of ABS rigid plastic or metal.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model features a square frame structure installed along the edge of the suitcase shell. The upper and lower frame structures have mounting slots for the suitcase, which are then fixed to the opening edge of the upper or lower shell of the suitcase with adhesive. Furthermore, an interlocking structure is provided between the upper and lower frame structures, making the upper and lower frames more securely fastened after the upper or lower shell of the suitcase is interlocked.

[0016] Furthermore, this utility model eliminates the need to sew zippers onto the suitcase shell. Instead, the frame is directly prepared, fitted onto the suitcase shell, and glued for fixation. This makes installation simple, operation convenient, and production efficiency higher. When in use, it is further secured by a locking mechanism installed on the suitcase shell, making it even more convenient and quick to use.

[0017] The square frame structure of this utility model is also provided with a zipper slot. The zipper with reinforced fabric edge is installed in the zipper slot to form the inner bag structure of the suitcase. The inner bag does not need to be sewn into the suitcase, making installation, disassembly and use more convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembly of the suitcase according to this utility model;

[0019] Figure 2 This is a schematic diagram of the splicing position of the upper frame structure and the lower frame structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the upper frame structure of this utility model installed on the upper shell of the suitcase;

[0021] Explanation of reference numerals: 1. Upper shell of suitcase; 2. Lower shell of suitcase; 3. Upper frame structure; 4. Lower frame structure; 5. Snap-fit ​​structure; 51. First protrusion; 52. First recess; 6. Zipper groove; 7. Inner pocket zipper; 71. Reinforcing fabric edge; 8. Suitcase mounting slot; 81. Second protrusion; 82. Second recess. Detailed Implementation

[0022] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1-3 As shown, this utility model provides a seamless closed frame structure for a suitcase, including an upper suitcase shell 1, a lower suitcase shell 2, an upper frame structure 3, and a lower frame structure 4. The upper frame structure 3 is nested along the lower edge of the upper suitcase shell 1, and the lower frame structure 4 is nested along the upper edge of the lower suitcase shell 2. When the upper suitcase shell 1 and the lower suitcase shell 2 are closed, the upper frame structure 3 and the lower frame structure 4 are spliced ​​together, and a locking structure 5 is provided at the splicing surface of the upper frame structure 3 and the lower frame structure 4. The upper frame structure 3 and the lower frame structure 4 are provided with zipper grooves 6 for inserting zippers 7 for inner pockets on the inner side of the suitcase cavity.

[0024] Furthermore, the engaging structure 5 includes a first protrusion 51 and a first recess 52, which are respectively disposed on one side of the opposite face of the upper frame structure 3 and the lower frame structure 4, and the first protrusion 51 and the first recess 52 are engaged with each other when the upper shell 1 and the lower shell 2 of the luggage compartment are closed.

[0025] Furthermore, in order to achieve seamless installation of the luggage inner pocket zipper 7, the inner pocket zipper 7, which is inserted into the zipper groove 6, includes a chain tooth part, a chain fabric part, and a reinforcing fabric edge 71. The chain fabric parts are connected to each other through the chain tooth parts, and a reinforcing fabric edge 71 is provided on the outer side of the chain fabric part. The reinforcing fabric edge 71 is inserted into the zipper groove 6.

[0026] Furthermore, in order to facilitate opening and use of the suitcase and to ensure that the suitcase can be securely closed, the upper shell 1 and the lower shell 2 of the suitcase are rotatably connected on one side of their backs by a hinge structure, and a locking structure is also provided between the upper shell 1 and the lower shell 2 of the suitcase.

[0027] Furthermore, in order to install and fix the upper frame structure 3 and the lower frame structure 4, the upper frame structure 3 and the lower frame structure 4 are provided with box mounting slots 8. The upper frame structure 3 and the lower frame structure 4 are engaged and nested at the edge of the opening of the upper shell 1 or the lower shell 2 of the suitcase through the box mounting slots 8.

[0028] Furthermore, a second recessed portion 82 is provided on the inner side wall of the mounting slot 8 of the suitcase, and a second protruding portion 81 is provided on the side of the opening edge of the upper shell 1 or the lower shell 2 of the suitcase, and the second protruding portion 81 and the second recessed portion 82 are engaged with each other.

[0029] Furthermore, in order to make the upper frame structure 3 and the lower frame structure 4 more securely fixed, the housing mounting slot 8 is encapsulated with potting compound, and the upper frame structure 3 and the lower frame structure 4 are fixed in the housing mounting slot 8 by the potting compound.

[0030] Furthermore, the upper frame structure 3 and the lower frame structure 4 are made of ABS rigid plastic or metal.

[0031] In this embodiment, a square frame structure is installed at the edge of the suitcase shell. The upper frame structure 3 and the lower frame structure 4 are provided with box mounting slots 8, which are fixed to the edge of the opening of the upper shell 1 or the lower shell 2 of the suitcase by adhesive. Furthermore, a snap-fit ​​structure 5 is provided between the upper frame structure 3 and the lower frame structure 4. After the upper shell 1 or the lower shell 2 of the suitcase is snapped together, the upper frame and the lower frame are more firmly snapped together.

[0032] Furthermore, this embodiment eliminates the need to sew zippers onto the suitcase shell. Instead, the frame is directly prepared, fitted onto the suitcase shell, and glued for fixation. This makes installation simple, operation convenient, and production efficiency higher. When in use, it is secured by a locking mechanism installed on the suitcase shell, making it even more convenient and quick to use.

[0033] The square frame structure of this embodiment is also provided with a zipper slot 6. The zipper with reinforced fabric edge 71 is installed in the zipper slot 6 to form the inner bag structure of the suitcase. The inner bag does not need to be sewn into the suitcase, making installation, disassembly and use more convenient.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction 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.

Claims

1. A seamless closed frame structure for a suitcase, characterized in that, The luggage includes an upper shell, a lower shell, an upper frame structure, and a lower frame structure. The upper frame structure is nested along the lower edge of the upper shell, and the lower frame structure is nested along the upper edge of the lower shell. When the upper and lower shells are closed, the upper and lower frame structures are spliced ​​together, and a snap-fit ​​structure is provided at the splicing surface of the upper and lower frame structures. The upper and lower frame structures have zipper grooves for inserting zippers into inner pockets on their inner sides relative to the inner cavity of the luggage.

2. The seamless luggage close-fitting frame structure according to claim 1, characterized in that, The engaging structure includes a first protrusion and a first recess, which are respectively disposed on one side of the opposite surface of the upper frame structure and the lower frame structure, and the first protrusion and the first recess are engaged with each other when the upper and lower shells of the luggage are closed.

3. The seamless luggage close-fitting frame structure according to claim 1, characterized in that, The inner pocket zipper, which is inserted into the zipper slot, includes a chain tooth portion, a chain fabric portion, and a reinforcing fabric edge. The chain fabric portion is connected to each other by the chain tooth portion, and a reinforcing fabric edge is provided on the outer side of the chain fabric portion. The reinforcing fabric edge is inserted and installed in the zipper slot.

4. The seamless luggage close-fitting frame structure according to claim 1, characterized in that, The upper and lower shells of the suitcase are rotatably connected by a hinge structure on one side of the back, and a locking structure is also provided between the upper and lower shells of the suitcase.

5. The seamless luggage close-fitting frame structure according to claim 1, characterized in that, The upper frame structure and the lower frame structure are provided with box mounting slots. The upper frame structure and the lower frame structure are installed on the edge of the opening of the upper shell or the lower shell of the suitcase by engaging and nesting with the box mounting slots.

6. The seamless luggage close-fitting frame structure according to claim 5, characterized in that, The inner wall of the mounting slot of the suitcase is provided with a second recess, and the side of the opening edge of the upper shell or lower shell of the suitcase is provided with a second protrusion, which is engaged with the second recess.

7. The seamless luggage close-fitting frame structure according to claim 5, characterized in that, The mounting slot of the housing is sealed with potting compound, and the upper frame structure and the lower frame structure are fixed in the mounting slot of the housing by the potting compound.

8. The seamless luggage close-fitting frame structure according to claim 1, characterized in that, The upper and lower frame structures are made of ABS rigid plastic or metal.

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