One-way telescopic connecting device of extensible luggage case

Abstract

The one-way telescopic connecting device comprises a soft cover shell, an extension part is arranged at one end of the soft cover shell, an end blocking part is arranged at the other end of the soft cover shell, a long-strip-shaped opening is formed in the end blocking part, an elastic telescopic piece and a connecting piece which are connected with each other are arranged in the soft cover shell, one end of the connecting piece extends out of the soft cover shell through the long-strip-shaped opening, and the other end of the connecting piece extends out of the soft cover shell through the long-strip-shaped opening. And one end of the elastic telescopic piece extends to the extension part. The extension part, the elastic telescopic piece and the connecting piece are fixed at the head and 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 expansion zipper is unzipped, the elastic expansion piece is expanded, so that more parts of the connecting piece extend out of the soft cover shell to realize one-way expansion, the folding part in the expansion zipper can be expanded, the space expansion of the luggage case is realized, and due to the elastic action of the elastic expansion piece, the stress at the head and the tail of the expansion zipper is reduced; the damage to the part due to excessive stress is avoided, and the structural strength of the luggage case is enhanced.

Description

Technical Field

[0001] The utility model belongs to the field of luggage, and particularly relates to a one-way 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 folding part can be stretched by opening the expansion zippers, so as to expand the space of the luggage case. 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 to damage the expansion zippers at this place 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 sense is damaged, and the appearance is relatively unattractive. Content of the Utility Model

[0003] To overcome the deficiencies and existing problems of the prior art, the utility model provides a one-way 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 shield 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 forces at the head and tail of the expansion zippers.

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

[0005] A one-way telescopic connection device for an expandable luggage case includes a soft cover shell. One end of the soft cover shell is provided with an extension part, and the other end is provided with an end stop part. A long slot is arranged on the end stop part. An elastic telescopic part and a connecting piece which are connected with each other are arranged inside the soft cover shell. One end of the connecting piece extends outside the soft cover shell through the long slot, and one end of the elastic telescopic part extends to the position of the extension part.

[0006] The elastic telescopic part is made of soft rubber material, and the elastic telescopic part is in a reciprocating folding shape. One end is provided with a docking part connected with the connecting piece, and the other end is provided with a fixing part extending to the position of the extension part.

[0007] The docking part is fixedly connected with the connecting piece by sewing or gluing.

[0008] The fixing part is located at the bottom of the luggage case strip, and the extension part is located at the top surface of the luggage case strip, and the fixing part and the extension part are fixed to the luggage case strip by sewing.

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

[0010] Side stop edge strips are arranged on both sides of the soft cover shell, and the transverse groove penetrates through the side stop 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 extension part, the elastic telescopic part and the connecting piece, which can block 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 elastic telescopic part extends, so that more parts of the connecting piece extend out of the soft cover shell, realizing one-way extension, so that the folded part in the extended zipper can be extended, and the space of the luggage is expanded. Due to the elastic action of the elastic telescopic part, the stress at the head and tail of the extended zipper is reduced, avoiding excessive stress damage at this place, and strengthening the structural strength of the luggage. 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 is a connection structural schematic diagram of the elastic telescopic part and the connecting piece in the utility model;

[0016] Figure 4 is a structural schematic diagram of the utility model in the use state.

[0017] In the figure: 1 - soft cover shell, 11 - extension part, 12 - end blocking part, 13 - long strip opening, 14 - transverse groove, 15 - side blocking edge strip, 2 - elastic telescopic part, 21 - docking part, 22 - fixing part, 3 - connecting piece, 4 - 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 and Figure 3 shown, a one-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 will 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] One end of the soft cover shell 1 is provided with an extension part 11, and the other end is provided with an end blocking part 12. A long strip opening 13 is provided on the end blocking part 12. An elastic telescopic part 2 and a connecting piece 3 are connected to each other inside the soft cover shell 1. One end of the connecting piece 3 extends out of the soft cover shell 1 through the long strip opening 13, which is convenient for fixing this end to the luggage leather strip. One end of the elastic telescopic part 2 extends to the extension part 11, which is convenient for fixing this end of the elastic telescopic part 2 and the extension part 11 to the luggage leather strip.

[0021] The elastic telescopic member 2 is made of soft rubber material. The elastic telescopic member 2 is reciprocatingly folded, with a docking portion 21 connected to the connecting piece 3 at one end, and a fixing portion 22 extending to the extension portion 11 at the other end. The reciprocating folding of the elastic telescopic member 2 can achieve force extension, thereby achieving an elastic telescopic effect. The docking portion 21 is convenient for connecting with the connecting piece 3, and the docking portion 21 is fixedly connected to the connecting piece 3 by sewing or gluing, and the connection is convenient and reliable. The setting of the fixing portion 22 is convenient for fixing with the luggage strap. The fixing portion 22 is located at the bottom of the luggage strap, and the extension portion 11 is located on the top surface of the luggage strap, and the fixing portion 22 and the extension portion 11 are fixed to the luggage strap by sewing, so that the fixing portion 22 and the extension portion 11 are fixed to the luggage strap more conveniently and reliably.

[0022] A transverse groove 14 is arranged in the middle of the inner surface of the soft cover shell 1, and the transverse groove 14 is convenient for bending, so that the soft cover shell 1 can be bent when the suitcase is opened. Side guard strips 15 are arranged on both sides of the soft cover shell 1, and the side guard strips 15 cover the internal structure, which is more beautiful. The transverse groove 14 runs through the side guard strips 15 on both sides to prevent the side guard strips 15 from affecting the bending of the soft cover shell 1.

[0023] like Figure 4 As shown, during installation, the device is positioned at the junction of the head and tail of the expansion zipper, the connecting piece 3 is fixed to the luggage strap 4 on one side of the expansion zipper, and the extension part 11 and the fixing part 22 are fixed to the luggage strap 4 on the other side of the expansion zipper, so as to complete the installation and fixing. At this time, the junction of the head and tail of the expansion zipper is covered, which improves the aesthetic effect. When in use, the expansion zipper is pulled open, and the folded part between the zippers can be gradually stretched during the pulling process. During the pulling process, the elastic telescopic part 2 is elastically stretched without affecting the unfolding of the folded part between the zippers. When the expansion zipper is fully pulled open, the folded part between the zippers is fully unfolded. Due to the elastic tension of the elastic telescopic part 2, the force at the head and tail of the expansion zipper can be reduced to avoid damage caused by excessive force. When the luggage needs to be opened, the soft cover shell 1 is bent along the transverse groove 14, which will not affect the opening of the luggage.

[0024] The above embodiments are preferred implementations of the present invention and are not intended to limit the present invention. Without departing from the concept of the present invention, any obvious replacements are within the protection scope of the present invention.

Claims

1. A one-way telescopic connection device for an expandable luggage case, characterized in that: The invention comprises a soft cover shell (1), wherein one end of the soft cover shell is provided with an extension portion (11), the other end of the soft cover shell is provided with an end stop portion (12), the end stop portion is provided with a long strip opening (13), and the soft cover shell is provided with an elastic telescopic member (2) and a connecting piece (3) which are connected to each other, one end of the connecting piece extends to the outside of the soft cover shell through the long strip opening, and one end of the elastic telescopic member extends to the extension portion.

2. The one-way telescopic connection device of the expandable luggage case according to claim 1, characterized in that: The elastic telescopic member (2) is made of soft rubber material and is in a reciprocating folding shape. One end of the elastic telescopic member is provided with a docking portion (21) connected to the connecting piece, and the other end is provided with a fixing portion (22) extending to the extension portion.

3. The one-way telescopic connection device of the expandable luggage case according to claim 2, characterized in that: The butt joint (21) is fixedly connected to the connecting piece (3) by sewing or gluing.

4. The one-way telescopic connection device of the expandable luggage case according to claim 3, characterized in that: The fixing portion (22) is located at the bottom of the luggage strap, the extension portion (11) is located at the top surface of the luggage strap, and the fixing portion and the extension portion are fixed to the luggage strap by sewing.

5. The one-way telescopic connection device for an expandable luggage case according to any one of claims 1 to 4, characterized in that: A transverse groove (14) is provided in the middle of the inner surface of the soft cover shell (1).

6. The one-way telescopic connection device of the expandable luggage case according to claim 5, characterized in that: Side guard strips (15) 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 one-way telescopic connection device of the expandable luggage case according to claim 6, characterized in that: The soft cover shell (1) is an integrally-molded structure.

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