Expansion connecting piece and expansion luggage case

Through the sliding connection plate and anti-detachment structure design, the problem of the expansion layer of the suitcase cannot be opened and closed normally, the stability and aesthetics of the expansion layer are achieved, and the use experience of the suitcase is improved.

CN223275058UActive Publication Date: 2025-08-29BOILING BUBBLE(GUANGZHOU)BRAND MANAGEMENT CO LTD
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Patent Information

Application Number
CN202422649254.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-08-29
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

In the expansion layer design of the existing suitcase, the hinge axis distance is fixed, which cannot adapt to the changes in the expansion layer, resulting in the expansion layer being unable to open and close normally.

Method used

The sliding connection plate design adopts a sliding connection, and the anti-disengagement structure of the slide groove and slider can achieve relative sliding of the connecting plate, and provide flexible bending and constraints through the bending groove and limiting projection, ensuring the stability and aesthetics of the expansion layer when opening and closing.

Benefits of technology

The stability and aesthetics of the expansion layer when the suitcase is opened and closed is achieved, avoiding the connection plate disengagement and damage, and improving the user experience of the expansion layer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a luggage case, in particular to an expansion connecting piece and an expansion luggage case. Comprising a first connecting plate and a second connecting plate, and the first connecting plate is connected to the second connecting plate in a sliding mode; at least one sliding groove is formed in a plate body of one of the first connecting plate and the second connecting plate, and a sliding piece corresponding to the sliding groove is arranged on the other plate body of the first connecting plate and the second connecting plate. The sliding piece is partially arranged in the sliding groove in a sliding mode, and an anti-disengaging structure is arranged at the tail end of the sliding piece. According to the opening and closing assembly, the first connecting plate and the second connecting plate are in sliding connection fit, and the sliding groove and the sliding piece are in connection fit, so that the opening and closing assembly is suitable for opening and closing a luggage case with an expansion layer and is not prone to falling off.
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Description

Technical Field

[0001] The utility model relates to a luggage case, in particular to a capacity expansion connector and a capacity expansion luggage case. Background Art

[0002] As people's living standards improve, more and more people choose to travel with suitcases to satisfy their spiritual needs. Suitcases have also evolved with the times. In order to increase the volume of suitcases, manufacturers usually adopt methods such as increasing the external dimensions, using soft shells, and adding expansion layers.

[0003] The expansion layer of a suitcase is a design that allows the luggage to increase its capacity when needed. It is typically equipped with a zipper that stores the expansion layer. Unzipping the zipper opens the storage layer, increasing the thickness of the suitcase and, in turn, its volume. Conventional luggage opening and closing components are typically hinges, each end of which is typically fixed to one half of the suitcase. Limited by the fixed distance between the hinge's pivot axis and the two halves, the distance between the two halves cannot be changed when they are parallel. Therefore, such opening and closing components are not suitable for suitcases with expansion layers.

[0004] In view of this, in order to overcome the above technical problems, the present invention designs an expansion connector and an expansion suitcase to solve the above technical problems. Utility Model Content

[0005] The utility model provides the following technical solutions:

[0006] The utility model provides a capacity expansion connector, which comprises a first connecting plate and a second connecting plate. The first connecting plate is slidably connected to the second connecting plate.

[0007] One of the connecting plate 1 or the connecting plate 2 is provided with at least one sliding groove on its plate body, and the other is provided with a corresponding sliding member; the sliding member is partially slidably provided in the sliding groove, and an anti-slip structure is provided at the end of the sliding member.

[0008] The anti-slip structure includes an anti-slip block, the width of the anti-slip block is greater than the width of the slide groove, and the anti-slip block is arranged on one end of the sliding member passing through the slide groove.

[0009] Preferably, the plate body of one of the connecting plate 1 or the connecting plate 2 is configured as a sliding block, and the other is provided with a sliding groove corresponding thereto, and the sliding groove is slidably connected to the sliding block.

[0010] The ends of the connecting plate 1 and the connecting plate 2 that are away from each other are both provided with mounting ends for connecting to the box body, and a shielding area for hiding the pull tab is provided between the two mounting ends.

[0011] Preferably, the sliding member is made of a hard material, and the connecting plate 1 and the connecting plate 2 are made of a soft material.

[0012] Preferably, a plurality of bending grooves are provided on the second connecting plate, and the bending grooves are perpendicular to the upper sliding groove of the second connecting plate.

[0013] Preferably, a plurality of limiting protrusions are provided on the slide groove.

[0014] Preferably, the surfaces of the connecting plate 1 and the connecting plate 2 facing away from the fitting surface are located on the same plane.

[0015] The utility model provides an expandable luggage case, comprising: a first box body, a second box body and an expansion layer, wherein the expansion layer is used to expand the volume of the luggage case, and the first box body and the second box body are connected to each other via the expansion layer; one side of the first box body and the second box body is fixedly connected with an expansion connector, and the expansion connector comprises a first connecting plate and a second connecting plate, the connecting plates are slidably connected to each other, the connecting plate is fixedly connected to the first box body, and the connecting plate is fixedly connected to the second box body; the expansion connector enables the first box body and the second box body to be opened and closed whether the expansion layer is open or closed.

[0016] Preferably, the expansion connector also includes two sets of mounting ends, which are used to fix connecting plate one and connecting plate two on the box body; the mounting ends are arranged inside box body one and box body two, and the mounting ends are fixedly connected to connecting plate one by screws and nuts, and the mounting ends are fixedly connected to connecting plate two by screws and nuts.

[0017] Beneficial Effect: After the expansion layer is fully expanded, the sliding member slides open on the chute. When the luggage case is closed, the expansion layer is stretched open, and the first and second connecting plates are separated. When the user opens the case, the first and second connecting plates flex normally, allowing the case to open normally. This design allows cases with expansion layers to be opened normally.

[0018] In addition, since the connecting plate 1 and the connecting plate 2 are directly opposite to the zipper of the expansion layer of the box body, the box body also has the function of covering up the ugliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1This is an axial view of the opening and closing assembly of the utility model in the closed state;

[0021] Figure 2 This is an axial view of the opening and closing assembly of the utility model in the pulled-out state;

[0022] Figure 3 It is a schematic back view of the opening and closing assembly of the utility model in the pulled-out state.

[0023] In the figure: 1. Connecting plate 1; 11. Sliding block; 12. Sliding groove; 13. Limiting protrusion; 2. Connecting plate 2; 21. Sliding groove; 22. Sliding member; 23. Bending groove; 3. Mounting end. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly 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 or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. In response to the problems existing in the prior art, the following solutions are proposed:

[0027] In embodiment 1, the expansion connector is used for luggage, and the expansion connector includes a connecting plate 1 and a connecting plate 2, and the connecting plate 1 and the connecting plate 2 are both provided with a mounting end 3, and the connecting plate 1 and the connecting plate 2 are respectively installed at the corresponding positions of the luggage through their respective mounting ends 3. It should be noted that the connecting plate 1 and the connecting plate 2 are slidingly assembled, that is, the connecting plate 1 and the connecting plate 2 can achieve relative position movement but do not separate from each other.

[0028] It should be noted that in order to solve the problem of easy separation between the connecting plate 1 and the connecting plate 2 when they slide relative to each other, we have made some structural designs for the sliding connection part. Specifically, a slide groove 12 is provided on the plate body of one of the connecting plate 1 or the connecting plate 2, and a sliding member 22 is provided on the plate body of the other to be assembled and connected with the slide groove 12. The sliding member 22 has an anti-slip structure. The anti-slip structure includes an anti-slip block, the width of which is greater than the width of the slide groove 12, and the anti-slip block is provided on the end of the sliding member 22 that passes through the slide groove 12.

[0029] refer to Figure 1 、 Figure 2 、 Figure 3 In this embodiment, in order to prevent the sliding member 22 from falling off when the connecting plate 1 and the connecting plate 2 slide relative to each other, the sliding member 22 adopts a pre-embedded design. The sliding member 22 and the connecting plate 2 2 are fixedly connected. During the actual production process, the mounting portion of the sliding member 22 is pre-embedded on the plate body of the connecting plate 2 2.

[0030] In order to further facilitate the understanding of those skilled in the art, the following is an explanation of its working principle. During specific use, when opening the suitcase, the user unzips the opening and then flips over one of the boxes. At this time, the connecting plate 1 and the connecting plate 2 2 are flexibly bent. After the suitcase is fully opened, the user can put in or take out the contents of the suitcase. Pull the storage zipper to open the expansion layer, and after filling the box with enough items, close the box. At this time, the expansion layer has completed its expansion, and the sliding member 22 slides open on the slide groove 12. When the suitcase is closed, the expansion layer is stretched open, and the connecting plate 1 and the connecting plate 2 2 are split apart. At this time, the user flips over the box, and the connecting plate 1 and the connecting plate 2 2 undergo normal flexible bending.

[0031] In the second embodiment, in order to accommodate the expansion zipper and thus achieve the effect of beautification, we have made a structural design on the connection part of the connecting plate 1 and the connecting plate 2. Specifically, Figure 1-2As shown, one of the connecting plate 1 or the connecting plate 2 is provided with a sliding block 11, while the other is provided with a corresponding sliding groove 21, which is slidably connected to the sliding block 11. Both the connecting plate 1 and the connecting plate 2 are provided with mounting ends 3 for connecting to the box body at their ends facing away from each other. A shielding area for concealing the pull tab is provided between the two mounting ends 3. This shielding area can also conceal the zipper when it is closed, thereby enhancing its aesthetics.

[0032] Example 3, as Figure 1 As shown, the connecting plate 2 is provided with a plurality of bending grooves 23 parallel to the rotating axis of the box body. When the connecting plate 2 is bent, the bending grooves 23 can reduce a certain deformation of the connecting plate 2, thereby avoiding unnecessary damage to the connecting plate 2.

[0033] Example 4, as Figure 1-2 As shown, the chute 12 is provided with a plurality of limiting protrusions 13. The limiting protrusions 13 ensure that the slider 22 has a certain pause when sliding on the chute 12. At the same time, when the first and second boxes are not expanded to their maximum extent, the connecting plate 1 and the connecting plate 2 are still subject to a certain restraining force.

[0034] Example 5, as Figure 1-2 As shown, the expansion connector also includes two sets of mounting ends 3, which are respectively disposed inside housing 1 and housing 2. Connecting plate 1, housing 1, and one set of mounting ends 3 are fixed together by screwing in screws; connecting plate 2, housing 2, and one set of mounting ends 3 are fixed together by screwing in screws; thus, connecting plate 1 and housing 1, and connecting plate 2 and housing 2 are connected.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A capacity expansion connector, comprising a connecting plate 1 (1) and a connecting plate 2 (2), wherein the connecting plate 1 (1) is slidably connected to the connecting plate 2 (2), and is characterized in that: One of the connecting plate 1 (1) or the connecting plate 2 (2) is provided with at least one sliding groove (12), and the other is provided with a corresponding sliding member (22); the sliding member (22) is partially slidably provided in the sliding groove (12), and an anti-slip structure is provided at the end of the sliding member (22).

2. The expansion connector according to claim 1, characterized in that: The anti-slip structure comprises an anti-slip block, the width of the anti-slip block is greater than the width of the slide groove (12), and the anti-slip block is arranged on one end of the sliding member (22) passing through the slide groove (12).

3. The expansion connector according to claim 1, characterized in that: The plate body of one of the connecting plate 1 (1) or the connecting plate 2 (2) is configured as a sliding block (11), and the other is provided with a corresponding sliding groove (21), and the sliding groove (21) is slidably connected to the sliding block (11).

4. The expansion connector according to claim 3, characterized in that: The ends of the connecting plate 1 (1) and the connecting plate 2 (2) that are away from each other are both provided with mounting ends (3) for connecting to the box body, and a shielding area for hiding a pull tab is provided between the two mounting ends (3).

5. The expansion connector according to claim 1, characterized in that: The sliding member (22) is made of a hard material, and the connecting plate 1 (1) and the connecting plate 2 (2) are made of a soft material.

6. The expansion connector according to claim 1, characterized in that: The second connecting plate (2) is provided with a plurality of bending grooves (23), and the bending grooves (23) are perpendicular to the bending direction of the second connecting plate (2).

7. The expansion connector according to claim 1, characterized in that: The slide groove (12) is provided with a plurality of limiting protrusions (13).

8. The expansion connector according to claim 4, characterized in that: The connection plate 1 (1) and the connection plate 2 (2) have their respective sides facing away from the fitting surface located on the same plane.

9. An expandable luggage case, comprising a case body, characterized in that: The box body is provided with a capacity expansion connector according to any one of claims 1 to 5.