A double-door adjustable luggage case
By incorporating expansion and support components on the luggage door, and utilizing Velcro and U-shaped supports, the problems of insufficient luggage space and easy deformation are solved, achieving a double-door luggage design that allows for space adjustment and cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINHUA OTUO LUGGAGE CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-05
AI Technical Summary
Existing double-door suitcases are prone to deformation or breakage when storing items slightly larger than the shell volume, and the opening and closing doors are easily contaminated by the ground.
An expansion assembly and a support assembly are installed on the opening and closing door. The displacement of the outer expansion plate is achieved by the Velcro hook surface and the rough surface to expand the box space. The opening and closing door is supported by a U-shaped piece, and the sliding plate and the stop strip are used for limiting.
It allows for adjustable internal space of the suitcase, preventing shell deformation and maintaining a clean appearance.
Smart Images
Figure CN224320330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage technology, specifically a double-door adjustable luggage. Background Technology
[0002] Most common suitcases are not actually double-door suitcases, but rather single-door suitcases, which are typically designed with a zipper closure. This design is simple and convenient, and is the most common style on the market. Double-door suitcases have gradually become more popular with some travelers in recent years, especially those who need easier organization of clothes or items. These suitcases usually feature a hard-shell or soft-shell design with two separate openings.
[0003] Existing double-door suitcases typically have a high-strength plastic shell and doors on both sides. These doors are closed with zippers and can be locked using a combination lock with a handle hole on the zipper pull. However, the internal volume of the high-strength plastic shell is usually fixed. In actual use, it is sometimes necessary to store and carry items and clothing that are slightly larger than the suitcase. Even if the shell can be slightly bent, it is not convenient to store items and clothing. Forcing items to be stored can easily cause the suitcase to break open when it is pulled, which is detrimental to the use of double-door suitcases. Therefore, we propose an adjustable double-door suitcase. Utility Model Content
[0004] The purpose of this invention is to provide a double-door adjustable suitcase to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-door adjustable suitcase, including a suitcase body, with opening and closing doors on both sides of the suitcase body, a pull rod on the top of the suitcase body, an expansion component and a support component on the side wall of the opening and closing door, the expansion component expanding the internal volume of the suitcase body after the side wall of the opening and closing door is stretched, and the support component separating the opening and closing door from the ground after the opening and closing door is opened.
[0006] Preferably, the expansion assembly includes a connecting frame fixed inside the door, a folded fabric ring fixed to the side wall of the connecting frame, and an outer expansion plate fixed to the side wall of the folded fabric ring.
[0007] Preferably, the outer wall of the door is provided with a zipper, and the side wall of the box is provided with a dial combination lock that cooperates with the zipper.
[0008] Preferably, the outer expansion plate sidewall is fixedly connected with a Velcro surface, and the Velcro surface sidewall is provided with a Velcro hook surface fixed to the opening and closing door.
[0009] Preferably, the support assembly includes a U-shaped member fixed to the side wall of the door, a fixing block fixed to the front side wall of the U-shaped member, and a stop strip fixed inside the U-shaped member.
[0010] Preferably, a sliding piece is fixedly connected to the side wall of the outer expansion plate, and the sliding piece is engaged with the interior of the support assembly.
[0011] Preferably, the stop bar is fitted to the side wall of the sliding piece, and the sliding piece is fitted inside the U-shaped part.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model features expansion components on the opening doors on both sides of the suitcase. After tearing apart the hook and loop sides of multiple Velcro straps, an expansion plate can be pulled outward to increase the internal space of the suitcase. Then, the hook and loop sides can be reattached to the loop sides, thereby adjusting and increasing the internal space of the suitcase. This avoids the problem of excessive pressure on the suitcase shell due to a large number of items inside, which could cause the shell to deform or even break. It is beneficial to adjust the internal space of the suitcase according to the storage needs of the items.
[0014] 2. In this utility model, when the outer expansion plate moves outward, the sliding piece slides inside the U-shaped part, and at the same time, the baffle strip blocks the front side of the sliding piece to limit the sliding piece, thereby limiting the outer expansion plate. Meanwhile, after the opening and closing door is opened and folded down, the U-shaped part supports the opening and closing door between the opening and closing door and the ground, which can reduce the contamination when the opening and closing door comes into contact with the ground when it is opened, and is conducive to the cleanliness of the appearance of the double-door suitcase during use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the opening and closing doors on both sides of the box body of this utility model when they are opened;
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the expansion component of this utility model;
[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the U-shaped component of this utility model;
[0019] Figure 5 For the present utility model Figure 1 An enlarged view of position A in the middle.
[0020] In the diagram: 100, cabinet; 110, pull rod; 120, door; 121, dial combination lock; 122, zipper; 130, outer expansion plate; 131, folding fabric ring; 132, connecting frame; 140, hook and loop fastener; 141, loop and loop fastener; 150, U-shaped piece; 151, fixing block; 152, stop bar; 153, sliding piece. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0022] Please see Figures 1-5 The illustration shows a double-door adjustable suitcase, including a suitcase body 100. The suitcase body 100 has two hinged doors 120 on either side. The bottom of each hinged door 120 is made of wear-resistant multi-layer nylon fabric strips and connected to the suitcase body 100 with bolts. The suitcase body 100 is made of high-strength ABS plastic sheet and an aluminum alloy frame, which is a common technology in existing suitcases. The interior of the suitcase body 100 has a plastic central vertical partition that can cooperate with the hinged doors 120 on both sides to form two cavities. A pull rod 110 is provided on the top of the suitcase body 100. The side walls of the hinged doors 120 are provided with an expansion component and a support component. The expansion component expands the internal volume of the suitcase body 100 after the side walls of the hinged doors 120 are stretched, and the support component separates the hinged doors 120 from the ground when they are opened.
[0023] Specifically, the expansion assembly includes a connecting frame 132 bolted to the inside of the opening and closing door 120, a folding fabric ring 131 bolted to the side wall of the connecting frame 132, and an outer expansion plate 130 bolted to the side wall of the folding fabric ring 131. The components of the expansion assembly are bolted together and then glued and sealed with common adhesive. The folding fabric ring 131 is made of wear-resistant, thick, multi-layered nylon fabric and can be folded when the outer expansion plate 130 is pushed inward. The opening and closing door 120, the connecting frame 132, and the outer expansion plate 130 are made of common aluminum alloy plates.
[0024] Furthermore, the outer wall of the opening and closing door 120 is provided with a zipper 122. The zipper 122 is a common high-strength product on the market and has two opposing stainless steel metal zipper pulls. The side wall of the suitcase 100 is provided with a dial combination lock 121 that cooperates with the zipper 122. The dial combination lock 121 is a common combination lock used in suitcases. The handles on the two stainless steel metal zipper pulls can be pressed into the lock hole of the dial combination lock 121 to lock it. This is a common locking method for combination lock suitcases that is in cooperation with the zipper pulls and is existing technology.
[0025] Furthermore, the outer expansion plate 130 has a Velcro surface 141 glued and fixed to the side wall, and the Velcro surface 141 has a Velcro hook surface 140 glued and fixed to the opening and closing door 120.
[0026] Furthermore, the support assembly includes a U-shaped member 150 bolted to the side wall of the opening and closing door 120, a fixing block 151 bolted to the front side wall of the U-shaped member 150, and a stop strip 152 bolted to the inside of the U-shaped member 150.
[0027] It is worth noting that a sliding piece 153 is fixed to the side wall of the outer expansion plate 130 by bolts. The sliding piece 153 is an aluminum alloy piece and is fitted inside the support assembly.
[0028] It is worth noting that the baffle 152 is fitted to the side wall of the sliding piece 153, and the sliding piece 153 is fitted to the inside of the U-shaped piece 150.
[0029] Working principle: By installing expansion components on the opening doors 120 on both sides of the suitcase 100, after tearing apart the multiple Velcro hook sides 140 and Velcro rough sides 141, the outward expansion plate 130 can be pulled outward, increasing the internal space of the suitcase 100. Then, the Velcro hook sides 140 can be reattached to the Velcro rough sides 141, thereby adjusting and increasing the internal space of the suitcase. This avoids the problem of excessive pressure on the suitcase shell due to a large number of items inside, which could cause deformation or even breakage. It is beneficial for adjusting the storage space of the items. The internal space of the suitcase can be adjusted according to the needs of the luggage. When the outer expansion plate 130 moves outward, the sliding piece 153 slides inside the U-shaped piece 150. At the same time, the baffle 152 blocks the front side of the sliding piece 153 to limit the sliding piece 153, thereby limiting the outer expansion plate 130. Meanwhile, after the opening and closing door 120 is opened and folded down, the U-shaped piece 150 supports the opening and closing door 120 between the opening and closing door 120 and the ground, which can reduce the contamination when the opening and closing door 120 comes into contact with the ground when it is opened, which is conducive to the cleanliness of the appearance of the double-door suitcase during use.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A double-door adjustable suitcase, comprising a suitcase body (100), characterized in that: The box (100) is provided with opening and closing doors (120) on both sides, and a pull rod (110) is provided on the top of the box (100). The side wall of the opening and closing door (120) is provided with an expansion component and a support component. The expansion component expands the internal volume of the box (100) after the side wall of the opening and closing door (120) is stretched. The support component separates the opening and closing door (120) from the ground after the opening and closing door (120) is opened. The expansion assembly includes a connecting frame (132) fixed inside the opening and closing door (120), a folding cloth ring (131) fixed to the side wall of the connecting frame (132), and an outer expansion plate (130) fixed to the side wall of the folding cloth ring (131). The outer wall of the opening and closing door (120) is provided with a zipper (122), and the side wall of the box (100) is provided with a dial combination lock (121) that cooperates with the zipper (122). The outer expansion plate (130) has a hook and loop fastener (141) fixed to its side wall, and the hook and loop fastener (141) side wall is provided with a hook and loop hook fastener (140) fixed to the opening and closing door (120). The support assembly includes a U-shaped piece (150) fixed to the side wall of the opening and closing door (120), a fixing block (151) fixed to the front side wall of the U-shaped piece (150), and a stop strip (152) fixed to the inside of the U-shaped piece (150). The sidewall of the outer expansion plate (130) is fixed with a sliding piece (153), which is fitted inside the support assembly; The stop bar (152) is fitted to the side wall of the sliding piece (153), and the sliding piece (153) is fitted to the inside of the U-shaped piece (150).