Bidirectional telescopic connecting device of extensible luggage case

Abstract

The bidirectional telescopic connecting device comprises a soft cover shell, end blocking parts are arranged at the two ends of the soft cover shell, long-strip-shaped openings are formed in the two end blocking parts, a first connecting piece and a second connecting piece are arranged in the soft cover shell, a soft piece is connected between the tail end of the first connecting piece and the tail end of the second connecting piece, and the two ends of the first connecting piece and the tail end of the second connecting piece are provided with long-strip-shaped openings. The head end of the first connecting piece and the head end of the second connecting piece penetrate through the two long-strip-shaped openings respectively and stretch out of the soft cover shell. The first connecting piece and the second connecting piece are fixed at the head and the tail of the luggage case extension zipper, so that the head and tail structure of the extension zipper can be shielded, and the overall aesthetic feeling of the luggage case is improved; when the extension zipper is unzipped, the first connecting piece and the second connecting piece can stretch out through the long-strip-shaped opening to achieve two-way extension, after the extension zipper is completely unzipped, the folding part in the extension zipper is completely unfolded, at the moment, the first connecting piece and the second connecting piece are pulled through the soft piece, and therefore the structural strength of the head and the tail of the extension zipper is enhanced; and the damage caused by excessive stress is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of luggage, and particularly relates to a bidirectional telescopic connection device for an expandable luggage case. Background Art

[0002] An expandable luggage case is provided with a circle of expansion zippers. A folding part is arranged inside the circle of zippers. The space of the luggage case can be expanded by pulling open the expansion zippers to make the folding part stretch. Due to its good space expandability, this kind of structure is widely adopted in current luggage cases. However, the head and tail connection parts of the expansion zippers of this kind of luggage case are subjected to greater forces, especially when being closed, they will be subjected to greater pulling forces, and it is easy for the expansion zippers at this place to be damaged due to the greater forces. Moreover, since the head and tail structures of the zippers are arranged at the head and tail connection parts of the expansion zippers, the continuity of the zippers in terms of sensory perception is damaged, and it is less beautiful in appearance. Content of the Utility Model

[0003] To overcome the deficiencies and existing problems of the prior art, the utility model provides a bidirectional telescopic connection device for an expandable luggage case, which is installed at the head and tail of the expansion zippers of the expandable luggage case, can block the head and tail structures of the expansion zippers, improve the overall aesthetic feeling of the luggage case, and can strengthen the structural strength to avoid excessive stress at the head and tail of the expansion zippers.

[0004] The utility model is realized through the following technical solutions:

[0005] A bidirectional telescopic connection device for an expandable luggage case includes a soft cover shell. End blocking parts are arranged at both ends of the soft cover shell. Long strip-shaped openings are arranged on both end blocking parts. A first connection piece and a second connection piece are arranged inside the soft cover shell. A soft piece is connected between the tail ends of the first connection piece and the second connection piece. The head ends of the first connection piece and the second connection piece respectively pass through the two long strip-shaped openings and extend out of the soft cover shell.

[0006] Limiting convex parts are arranged on both sides of the tail ends of the first connection piece and the second connection piece.

[0007] The soft piece is made of cloth or soft glue material.

[0008] Bar-shaped holes are arranged at the tail ends of the first connection piece and the second connection piece. Both ends of the soft piece respectively penetrate into the two bar-shaped holes and are bent and sewn or fixed by gluing.

[0009] A horizontally arranged transverse groove is arranged in the middle of the inner surface of the soft cover shell.

[0010] Side blocking edge strips are arranged on both sides of the soft cover shell. The transverse groove penetrates through the side blocking edge strips.

[0011] The soft cover shell is an injection-molded integral structure.

[0012] The utility model is fixed at the head and tail of the extended zipper of the luggage through the first connecting piece and the second connecting piece, which can cover the head and tail structures of the extended zipper and improve the overall aesthetic feeling of the luggage. When the extended zipper is opened, the first connecting piece and the second connecting piece can extend out through the long strip openings, realizing two-way stretching without affecting the stretching of the folding part inside the extended zipper. After the extended zipper is completely opened and the folding part inside the extended zipper is completely unfolded, the first connecting piece and the second connecting piece are pulled by a soft piece, thereby strengthening the structural strength at the head and tail of the extended zipper and preventing damage caused by excessive stress at this place. Brief Description of the Drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 is a structural schematic diagram of the soft cover shell in the utility model;

[0015] Figure 3 and Figure 4 is a connection structural schematic diagram of the first connecting piece and the second connecting piece in the utility model;

[0016] Figure 5 is a structural schematic diagram of the utility model in the use state.

[0017] In the figure: 1 - soft cover shell, 11 - end blocking part, 12 - long strip opening, 13 - transverse groove, 14 - side blocking strip, 2 - first connecting piece, 3 - second connecting piece, 4 - soft piece, 5 - limiting convex part, 6 - strip-shaped hole, 7 - luggage leather strip. Detailed Description of the Embodiment

[0018] For the convenience of understanding by those skilled in the art, the following further describes the utility model in detail with reference to the drawings and specific embodiments.

[0019] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, a two-way telescopic connection device for an expandable luggage includes a soft cover shell 1. The soft cover shell 1 is relatively soft and easy to bend, and does not affect the opening of the luggage. The soft cover shell 1 is an injection-molded integral structure, which is convenient for production and manufacturing.

[0020] Both ends of the soft cover shell 1 are provided with end blocking parts 11, and long strip openings 12 are provided on both end blocking parts 11. A first connecting piece 2 and a second connecting piece 3 are arranged inside the soft cover shell 1. A soft piece 4 is connected between the tail ends of the first connecting piece 2 and the second connecting piece 3. The head ends of the first connecting piece 2 and the second connecting piece 3 respectively pass through the two long strip openings 12 and extend out of the soft cover shell 1, which is convenient for the head ends of the first connecting piece 2 and the second connecting piece 3 to be respectively connected to the luggage leather strip. When the first connecting piece 2 and the second connecting piece 3 move in opposite directions to a certain position, the soft piece 4 can pull the first connecting piece 2 and the second connecting piece 3.

[0021] The film 4 is made of cloth or soft rubber material, which can make there be a certain elastic connection between the first connecting piece 2 and the second connecting piece 3. Strip-shaped holes 6 are provided at the tail ends of the first connecting piece 2 and the second connecting piece 3. Two ends of the film 4 are respectively inserted into the two strip-shaped holes 6 and bent and sewn or fixed by gluing, which is convenient for the connection and fixation of the film 4 with the first connecting piece 2 and the second connecting piece 3. Limiting convex parts 5 are provided on both sides of the tail ends of the first connecting piece 2 and the second connecting piece 3. The limiting convex parts 5 can limit the displacement limit of the first connecting piece 2 and the second connecting piece 3, and prevent the first connecting piece 2 and the second connecting piece 3 from moving out of the soft cover 1 as a whole.

[0022] In the middle of the inner surface of the soft cover 1, a horizontally arranged transverse groove 13 is provided. The transverse groove 13 is convenient for bending, so that the soft cover 1 can be bent as the trunk is opened. Side blocking edge strips 14 are provided on both sides of the soft cover 1. The side blocking edge strips 14 block the internal structure and are more beautiful. The transverse groove 13 penetrates through the two side blocking edge strips 14 to prevent the side blocking edge strips 14 from affecting the bending of the soft cover 1.

[0023] As Figure 5 shown, during installation, the device is positioned at the joint of the head and tail of the extension zipper. The head ends of the first connecting piece 2 and the second connecting piece 3 are respectively fixed on the trunk leather strips 7 on both sides of the extension zipper, so as to complete the installation and fixation. At this time, the joint of the head and tail of the extension zipper is blocked, improving the aesthetic effect. During use, when the extension zipper is opened, the folding part between the zippers can be gradually stretched during the opening process. During the opening process, the first connecting piece 2 and the second connecting piece 3 move out from the long strip opening 12, realizing two-way stretching without affecting the stretching of the folding part inside the extension zipper. After the extension zipper is completely opened, the folding part inside the extension zipper is completely stretched. At this time, the first connecting piece 2 and the second connecting piece 3 are pulled by the film, so as to strengthen the structural strength at the head and tail of the extension zipper and prevent excessive force damage at this place; when the trunk needs to be opened, the soft cover 1 is bent along the transverse groove 13 without affecting the opening of the trunk.

[0024] The above embodiments are the preferred implementation manners of the present utility model, and are not limitations to the present utility model. Without departing from the inventive concept of the present utility model, any obvious replacement is within the protection scope of the present utility model.

Claims

1. A two-way telescopic connection device for an expandable luggage case, characterized in that: The invention comprises a soft cover shell (1), both ends of the soft cover shell are provided with end stoppers (11), both end stoppers are provided with long strip openings (12), a first connecting piece (2) and a second connecting piece (3) are provided inside the soft cover shell, a soft sheet (4) is connected between the tail ends of the first connecting piece and the second connecting piece, and the head ends of the first connecting piece and the second connecting piece respectively pass through the two long strip openings and extend outside the soft cover shell.

2. The two-way telescopic connection device for an expandable luggage case according to claim 1, characterized in that: Position limiting protrusions (5) are provided on both sides of the tail ends of the first connecting piece (2) and the second connecting piece (3).

3. The two-way telescopic connection device for an expandable luggage case according to claim 2, characterized in that: The soft film (4) is made of cloth or soft rubber.

4. The two-way telescopic connection device for an expandable luggage case according to claim 3, characterized in that: The tail ends of the first connecting piece (2) and the second connecting piece (3) are both provided with strip holes (6), and the two ends of the soft film are respectively inserted into the two strip holes and bent and sewn or fixed by gluing.

5. The two-way telescopic connection device for an expandable luggage case according to any one of claims 1 to 4, characterized in that: A transverse groove (13) is arranged transversely in the middle of the inner surface of the soft cover shell (1).

6. The two-way telescopic connection device for an expandable luggage case according to claim 5, characterized in that: Side guard strips (14) are provided on both sides of the soft cover shell (1), and the transverse grooves penetrate the side guard strips on both sides.

7. The two-way telescopic connection device for an expandable luggage case according to claim 6, characterized in that: The soft cover shell (1) is an integrally-molded structure.

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