A luggage case with upper and lower case shells that can be docked

CN224776222UActive Publication Date: 2026-09-22QUANZHOU JINLIN HIGH NEW ENVIRONMENTAL PROTECTION MATERIAL
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Patent Information

Application Number
CN202522086383.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2026-09-22
Estimated Expiration
2035-09-28

AI Technical Summary

Technical Problem

若为保持上箱壳与下箱壳的主体尺寸一致使行李箱整体美观,则需要将某一箱壳的口部通过设置台阶进行口部缩小或扩大才便于相互嵌入,但在箱壳的口部设置台阶却会增加箱壳的制作难度,进而增加制造成本

Benefits of technology

[0014]所述箱盖与上箱壳的箱口之间在同一侧边设有铰接件,箱盖可绕铰接件翻转。

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Abstract

The utility model relates to the field of luggage, concretely relates to a luggage case with upper and lower box shells that can be docked, which comprises an upper box shell, a lower box shell, a connecting piece, a box cover, a box cover zipper, an inner cloth zipper and an inner cloth, the utility model designs the connecting piece for connecting the upper box shell and the lower box shell into a component with H-shaped cross section, which comprises an outer sheet, an inner sheet and a connecting sheet, two second clamping openings are arranged on one side of the connecting piece, and the connecting piece can be bent into a mouth-shaped form. The utility model can make the sizes of the mouth parts of the upper box shell and the lower box shell consistent, the cavity between the outer sheet and the inner sheet of the connecting piece can be separated into two first clamping openings that are symmetrical on the upper and lower sides by the connecting sheet to clamp the mouth parts of the upper box shell and the lower box shell respectively and lock or glue, so that the mouth parts of the upper box shell and the lower box shell can be docked without being designed into a stepped form to be overlapped in a staggered manner, thereby reducing the manufacturing difficulty and production cost of the box shell.
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Description

Technical Field

[0001] This utility model relates to the field of luggage, specifically to a suitcase with interlocking upper and lower shells. Background Technology

[0002] Most suitcase shells are made by blow molding or compression molding. A typical suitcase shell consists of an upper shell and a lower shell. Currently, some suitcases have the opening mechanism located between the upper and lower shells, while others have it on top of the upper shell. Suitcases with the opening mechanism on top of the upper shell usually require a fixed connection between the upper and lower shells, with a separate lid on top of the upper shell for opening and closing. When fixing the upper and lower shells together, the opening sizes of the upper and lower shells often need to be made in two different sizes, interlocking to achieve a staggered fit. To maintain consistent dimensions for a more aesthetically pleasing overall appearance, steps need to be added to the opening of one shell to narrow or widen it for easier interlocking. However, adding steps to the opening of the shells increases manufacturing complexity and costs. Therefore, it is necessary to improve the suitcase. The problem to be solved in this case is to design a connector that can make the opening size of the upper and lower shells the same and allow the side walls of the shells to be connected without misalignment, thereby reducing the manufacturing difficulty and production cost of the shell. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model discloses a suitcase with interlocking upper and lower shells, including an upper shell, a lower shell, a connector, a lid, a lid zipper, a lining zipper, and a lining. The connector has an H-shaped cross-section and includes an outer piece, an inner piece, and a connecting piece placed between the outer and inner pieces. The connector can be bent into a U-shape. This utility model allows the opening dimensions of the upper and lower shells to be made the same. By using the cavity between the outer and inner pieces of the connector, which is divided by the connecting piece into two symmetrical first clamping openings, the openings of the upper and lower shells are clamped and locked or glued together. This allows the openings of the upper and lower shells to be interlocked without the need for a stepped design for misalignment, thereby reducing the manufacturing difficulty and production cost of the suitcase shells.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A suitcase with interlocking upper and lower shells includes an upper shell and a lower shell, both of which are open cavities. The openings of the upper and lower shells face each other. The suitcase is characterized by further including a connector, a lid, a lid zipper, a lining zipper, and a lining. The connector is an H-shaped clamping strip comprising an outer piece, an inner piece, and a connecting piece positioned between the outer and inner pieces. The cavity between the outer and inner pieces is divided by the connecting piece into two symmetrical first clamping openings, with the openings of the two first clamping openings facing opposite directions. The connector is flexible and can be formed into a U-shape. The connector is placed between the upper and lower shells. The openings of the upper and lower shells can be respectively embedded into the two first clamping openings of the connector and can be clamped by the first clamping openings. The top wall of the upper shell is provided with a box opening. The box lid is hinged to the box opening. The box lid zipper is provided between the box lid and the box opening. The connector is provided with a second clamping opening on one side of its inner sheet. The lining is movably connected to the second clamping opening of the connector. The lining is connected to the lining zipper.

[0006] The first clamping opening of the connector is a flat groove with a raised locking protrusion at its opening, which is located inside the outer piece. The locking protrusion can be elastically deformed under external pressure. The openings of the upper and lower housings are provided with locking grooves that match the locking protrusion of the first clamping opening.

[0007] The connector has two second clamping ports on one side of its inner sheet. The two second clamping ports are arranged vertically and their opening direction is perpendicular to the opening direction of the first clamping port. A square cavity is provided at the end of the second clamping port.

[0008] The liger chain consists of two pieces. Each of the two liger chains has a flexible sleeve and a limiting rod that can be inserted into the sleeve on one side of the chain belt. The sleeve and limiting rod of each of the two liger chains can be placed in the square cavity at the end of the two second clamping ports of the connector.

[0009] Both the sleeve and the limiting rod extend along the length of the connector. The limiting rod is a plastic or aluminum rod with a square cross-section and is flexible. The sleeve is a flexible cloth sleeve that can be sewn to or integrally formed with the chain strap of the ligne.

[0010] The lining fabric includes an upper lining fabric and a lower lining fabric, which are respectively sewn to the chain straps on the other side of the two lining fabrics.

[0011] The upper and lower lining fabrics are placed inside the upper and lower case shells, respectively. The upper lining fabric is connected to the top wall of the upper case shell with Velcro. The upper lining fabric has an opening in its middle, and the opening corresponds to the opening of the top wall of the upper case shell.

[0012] The connector also has an inner groove in the middle of one side of its inner plate.

[0013] The connector's inner groove can be provided with a plurality of screws. When the openings of the upper and lower housings are inserted into the first clamping opening, the screws can pass obliquely through the inner plate of the connector from the inner groove and be screwed into the opening walls of the upper and lower housings, thus locking the openings of the upper and lower housings onto the connector. Alternatively, adhesive can be applied to the first clamping opening of the connector, allowing the openings of the upper and lower housings to be glued to the connector when inserted into the first clamping opening.

[0014] The lid and the opening of the upper shell are connected by a hinge on the same side, and the lid can be flipped around the hinge.

[0015] Furthermore, the suitcase with interlocking upper and lower shells also includes latches, casters, handles, and telescopic rods connected to the upper and / or lower shells.

[0016] As described above, the advantages of this utility model for a suitcase with interlocking upper and lower shells are as follows: the connector for connecting the upper and lower shells is designed as an H-shaped component, comprising an outer piece, an inner piece, and a connecting piece. Two second clamping openings are provided on one side of the connector, and the connector can be bent into a U-shape. This utility model allows the opening dimensions of the upper and lower shells to be made identical. The cavity between the outer and inner pieces of the connector is divided by the connecting piece into two symmetrical first clamping openings to clamp and lock or glue the openings of the upper and lower shells respectively. This allows the openings of the upper and lower shells to be joined without the need for a stepped, staggered joint, thus reducing the manufacturing difficulty and production cost of the shells. Furthermore, the two second clamping openings on one side of the connector and the square cavities at the ends of the second clamping openings allow the lining chain to be movably connected to the connector, improving the convenience of installing the lining chain and lining, thereby increasing the efficiency of suitcase assembly. This utility model has a reasonable design, simple structure, low cost, and is easy to promote. Attached Figure Description

[0017] Figure 1 This is a general schematic diagram of a suitcase with interlocking upper and lower shells according to the present invention;

[0018] Figure 2 for Figure 1 A magnified diagram of AA in the image;

[0019] Figure 3 This is an enlarged cross-sectional view of the connector.

[0020] Figure label:

[0021] 1 Upper case shell; 2 Lower case shell; 3 Connector; 31 Outer piece; 32 Inner piece; 33 Connecting piece; 301 First clamping opening; 302 Second clamping opening; 303 Inner groove; 4 Case lid; 5 Case lid zipper; 6 Lining zipper; 7 Lining fabric. Detailed Implementation

[0022] The present invention will be further described below through specific embodiments.

[0023] like Figures 1 to 3 As shown, the suitcase with interlocking upper and lower shells of this utility model includes an upper shell 1, a lower shell 2, a connector 3, a lid 4, a lid zipper 5, a lining zipper 6, and a lining 7; it also includes a latch, casters, a handle, and a telescopic rod connected to the upper shell 1 and / or the lower shell 2, the latch, casters, and telescopic rod being not shown in the figure.

[0024] like Figures 1 to 3 As shown, both the upper shell 1 and the lower shell 2 of this utility model are open cavities. The openings of the upper shell 1 and the lower shell 2 are arranged opposite each other. The connecting member 3 is a clamping strip with an H-shaped cross-section, which includes an outer piece 31, an inner piece 32, and a connecting piece 33 placed between the outer piece 31 and the inner piece 32. The cavity between the outer piece 31 and the inner piece 32 of the connecting member 3 is divided by the connecting piece 33 into two symmetrical first clamping openings 301. The opening directions of the two first clamping openings 301 are opposite. The connecting member 3 is flexible. They can be arranged into a square shape. The connector 3 is placed between the upper shell 1 and the lower shell 2. The first clamping opening 301 of the connector 3 is a flat groove with a protruding locking protrusion at its opening, which is located inside the outer piece 31. The locking protrusion can be elastically deformed under external pressure. The openings of the upper shell 1 and the lower shell 2 are provided with locking grooves that match the locking protrusion of the first clamping opening 301. The openings of the upper shell 1 and the lower shell 2 can be respectively embedded into the two first clamping openings 301 of the connector 3 and can be clamped by the first clamping openings 301. The process of inserting the openings of the upper shell 1 and the lower shell 2 into the first clamping openings 301 needs to be carried out after the connector 3 is bent into a U-shaped structure. When inserting the opening of the upper shell 1 or the lower shell 2, the corresponding outer piece 31 on the connector 3 needs to be moved to slightly open the opening of the corresponding first clamping opening 301, and the upper shell 1 or the lower shell 2 needs to be pushed to elastically compress the card protrusion until the opening of the upper shell 1 or the lower shell 2 is inserted into the corresponding first clamping opening 301, and the card protrusion falls into the corresponding card slot of the opening of the upper shell 1 or the lower shell 2, and the outer piece 31 is restored to its original state.

[0025] like Figures 1 to 3As shown, the upper shell 1 of this utility model has a box opening on its top wall, and the box cover 4 is hinged to the box opening. The box cover zipper 5 is provided between the box cover 4 and the box opening. The box cover 4 and the box opening of the upper shell 1 are provided with a hinge on the same side, and the box cover 4 can be flipped around the hinge.

[0026] like Figures 1 to 3 As shown, the connector 3 of this utility model has two second clamping ports 302 on one side of its inner plate 32. The two second clamping ports 302 are arranged vertically and their opening direction is perpendicular to the opening direction of the first clamping port 301. A square cavity is provided at the end of the second clamping port 302. The ligature chain 6 consists of two pieces. Each of the two ligature chains 6 has a flexible sleeve and a limiting rod that can be inserted into the sleeve on one side of the chain. The sleeve and limiting rod of each of the two ligature chains 6 can be placed in the square cavity at the end of the two second clamping ports 302 of the connector 3. The sleeve and the limiting rod both extend along the length of the connector 3. The limiting rod is a plastic rod or aluminum rod with a square cross-section and is flexible. The sleeve is a flexible cloth sleeve and can be sewn to the chain of the ligature chain 6 or integrally formed. The installation of the lining chain 6 must be carried out before the connector 3 is bent. Before installation, insert the sleeves with limit rods of the two lining chains 6 into the square cavities at the ends of the corresponding second clamping openings 302 on the connector 3. Then, bend the connector 3 and form a U-shape. The lining 7 includes an upper lining and a lower lining, which are sewn to the chain straps on the other side of each of the two lining chains 6. The upper and lower linings of the lining 7 are placed inside the upper shell 1 and the lower shell 2, respectively. The upper lining is attached to the top wall of the upper shell 1 with Velcro, and the upper lining has an opening in the middle that corresponds to the opening of the top wall of the upper shell 1.

[0027] like Figures 1 to 3 As shown, the connector 3 of this utility model also has an inner groove 303 in the middle of one side of its inner plate 32. Several screws (not shown in the figure) can be distributed in the inner groove 303 of the connector 3. When the openings of the upper shell 1 and the lower shell 2 are inserted into the first clamping opening 301, the screws can pass obliquely through the inner plate 32 of the connector 3 from the inner groove 303 and be screwed into the opening walls of the upper shell 1 and the lower shell 2, thus locking the openings of the upper shell 1 and the lower shell 2 onto the connector 3. Alternatively, glue can be applied to the first clamping opening 301 of the connector 3, allowing the openings of the upper shell 1 and the lower shell 2 to be glued to the connector 3 when inserted into the first clamping opening 301.

[0028] This invention designs the connector 3, used to connect the upper shell 1 and the lower shell 2, as an H-shaped component, comprising an outer piece 31, an inner piece 32, and a connecting piece 33. Two second clamping openings 302 are provided on one side of the connector 3, and the connector 3 can be bent into a U-shape. This invention allows the opening dimensions of the upper shell 1 and the lower shell 2 to be made identical. The cavity between the outer piece 31 and the inner piece 32 of the connector 3 can be divided by the connecting piece 33 into two symmetrical first clamping openings 301 to clamp and lock or glue the openings of the upper shell 1 and the lower shell 2 respectively. This allows the openings of the upper shell 1 and the lower shell 2 to align without requiring a stepped design for misalignment, thereby reducing the manufacturing difficulty and production cost of the shells.

[0029] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A suitcase with interlocking upper and lower shells, comprising an upper shell (1) and a lower shell (2), wherein both the upper shell (1) and the lower shell (2) are open cavities, and the openings of the upper shell (1) and the lower shell (2) are arranged facing each other, characterized in that: It also includes a connector (3), a lid (4), a lid zipper (5), a lining zipper (6), and a lining (7). The connector (3) is a clamping strip with an H-shaped cross-section, which includes an outer piece (31), an inner piece (32), and a connecting piece (33) placed between the outer piece (31) and the inner piece (32). The cavity between the outer piece (31) and the inner piece (32) of the connector (3) is divided into two symmetrical first clamping openings (301) by the connecting piece (33). The connector (3) is flexible and can be formed into a U-shape. The connector (3) is placed between the upper box shell (1) and the lower box shell. (2) Between the upper box shell (1) and the lower box shell (2), the openings of the upper box shell (1) and the lower box shell (2) can be respectively embedded in the two first clamping ports (301) of the connector (3). The upper box shell (1) has a box opening on its top wall. The box cover (4) is hinged to the box opening. The box cover zipper (5) is set between the box cover (4) and the box opening. The connector (3) has a second clamping port (302) on one side of its inner piece (32). The lining chain (6) is movably connected to the second clamping port (302) of the connector (3). The lining (7) is connected to the lining chain (6).

2. The suitcase with interlocking upper and lower shells according to claim 1, characterized in that: The first clamping opening (301) of the connector (3) is a flat groove with a raised locking protrusion at its opening, which is located inside the outer piece (31). The openings of the upper shell (1) and the lower shell (2) are provided with locking grooves that match the locking protrusion of the first clamping opening (301).

3. A suitcase with interlocking upper and lower shells according to claim 2, characterized in that: The connector (3) has two second clamping ports (302) on one side of its inner piece (32), and the two second clamping ports (302) are arranged vertically. A square cavity is provided at the end of the second clamping port (302).

4. A suitcase with interlocking upper and lower shells according to claim 3, characterized in that: The liger chain (6) consists of two pieces. Each of the two liger chains (6) has a flexible sleeve and a limiting rod that can be inserted into the sleeve on one side of the chain belt. The sleeve and limiting rod of each of the two liger chains (6) can be placed in the square cavity at the end of the two second clamping ports (302) of the connector (3).

5. A suitcase with interlocking upper and lower shells according to claim 4, characterized in that: The lining (7) includes an upper lining and a lower lining, which are sewn to the chain straps on the other side of the two linings (6).

6. A suitcase with interlocking upper and lower shells according to claim 5, characterized in that: The connector (3) also has an inner groove (303) in the middle of one side of its inner piece (32).

7. A suitcase with interlocking upper and lower shells according to claim 6, characterized in that: Several screws can be distributed in the inner groove (303) of the connector (3). When the openings of the upper shell (1) and the lower shell (2) are inserted into the first clamping opening (301), several screws can pass obliquely through the inner plate (32) of the connector (3) from the inner groove (303) and be screwed into the opening walls of the upper shell (1) and the lower shell (2), so that the openings of the upper shell (1) and the lower shell (2) are locked onto the connector (3).

8. A suitcase with interlocking upper and lower shells according to claim 6, characterized in that: Adhesive can be applied to the first clamping port (301) of the connector (3). When the openings of the upper shell (1) and the lower shell (2) are inserted into the first clamping port (301), the openings of the upper shell (1) and the lower shell (2) can be glued to the connector (3).