Luggage case aluminum frame with enhanced structure

By incorporating positioning slots and fasteners into the aluminum frame of the suitcase, the stability of the frame connection is enhanced, solving the problem of easy deformation of the aluminum frame, improving load-bearing capacity and stability, extending service life, and enhancing user experience.

CN224268533UActive Publication Date: 2026-05-26DONGGUAN HONGGUAN ALUMINUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN HONGGUAN ALUMINUM CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-26

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Abstract

The utility model discloses a structure-enhanced aluminum frame for a luggage case. The structure-enhanced aluminum frame comprises a first frame body and a second frame body, a third clamping hook part is arranged in a positioning groove, a first clamping hook part is arranged in a first groove, the first groove is communicated with the positioning groove and forms a first buffer space, a second clamping hook part is arranged in a second groove, and the second groove is communicated with the positioning groove and forms a second buffer space; when the first frame body and the second frame body are subjected to downward force, the first frame body is gradually far away from the second frame body, and the second buffer space is gradually reduced until the third clamping hook part and the second clamping hook part abut against each other; the aluminum frame of the luggage case can effectively enhance the stability of a product connecting structure, when a user sits on the luggage case and the luggage case bears downward force, the third clamping hook part and the second clamping hook part are arranged in a matched mode to effectively improve the bearing capacity of the luggage case, the luggage case is prevented from being damaged, convenience is brought to use of the user, the user experience is improved, and the user experience is improved. The requirement that the luggage case can bear the weight and a person has a temporary rest is met.
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Description

Technical Field

[0001] This utility model relates to the field of luggage accessories, and in particular to a structurally reinforced aluminum frame for luggage. Background Technology

[0002] With the continuous development of society and economy and the continuous improvement of people's living standards, more and more travel aids are being manufactured and are constantly being innovated and improved. Suitcases are one such travel aid.

[0003] A suitcase, also known as a travel case or rolling case, is a box carried when traveling to store belongings; it is a type of luggage. Suitcases are typically used to hold clothing, personal care items, souvenirs, and other items needed for a trip. Suitcases are widely popular due to their portability. The aluminum frame of a suitcase is an important accessory.

[0004] Current suitcases generally consist of a first lid, a second lid, a zipper, and two aluminum frames. One side of the first lid is hinged to one side of the second lid, and the zipper is positioned between the two lids. The two aluminum frames are typically frame-like structures attached to the sides of the first and second lids, serving only a supporting function. This simple structure, while providing basic storage, presents significant challenges. For example, when waiting in long lines at airports or train stations without finding seating, users may sit on the suitcase. This puts downward (inward) forces on the aluminum frames, which, due to the suitcase's weak structure and poor load-bearing capacity, easily deform and dent, damaging the suitcase and posing a safety hazard. This results in inconvenience, a poor user experience, and a short lifespan, failing to meet current needs. Therefore, it is necessary to research a new technological solution to address these issues. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology by providing a structurally reinforced aluminum frame for suitcases. This effectively solves the problems existing in the prior art, such as when users are queuing at airports or waiting at train stations and cannot find seats to rest, they become very tired. Some users may sit on their suitcases to rest, but the suitcases are not structurally stable, have poor load-bearing capacity, and the aluminum frame is easily deformed and dented inward, causing damage to the suitcase, posing a significant safety hazard, causing inconvenience to users, resulting in a poor user experience, and also leading to poor quality and short service life of the suitcases.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A structurally reinforced aluminum frame for a suitcase includes a first frame and a second frame. The first frame has a positioning groove, with a first hook and a second hook at both ends. The second frame has a fastener detachably mounted in and adapted to the positioning groove. The fastener includes a third hook, a first groove, and a second groove. The third hook is located in the positioning groove, and the first and second grooves are respectively located on either side of the third hook. The first hook is located in the first groove. The first groove is connected to the positioning groove and forms a first buffer space. The second hook is disposed in the second groove, which is connected to the positioning groove and forms a second buffer space. When the first frame and the second frame are subjected to an upward force, the first frame gradually moves away from the second frame, and the first buffer space gradually decreases until the third hook abuts against the first hook. When the first frame and the second frame are subjected to a downward force, the first frame gradually moves away from the second frame, and the second buffer space gradually decreases until the third hook abuts against the second hook.

[0008] As a preferred embodiment, the first frame includes a main body and a first fixing part, the main body being provided with the aforementioned positioning groove, and the first fixing part extending outward from one end of the main body; the second frame is provided with a second fixing part, the second fixing part extending outward from one end of the buckle.

[0009] As a preferred embodiment, the first fixing part is provided with a first fixing groove for fixing with external screws, and the second fixing part is provided with a second fixing groove for fixing with external screws. The structure is simple and the assembly is convenient and quick.

[0010] As a preferred embodiment, both the first fixing groove and the second fixing groove are arc-shaped.

[0011] As a preferred embodiment, the first frame is provided with a first extension portion, which is disposed between the first fixing portion and the main body, and the first extension portion extends outward from the first fixing portion. The second frame is provided with a second extension portion, which is disposed between the second fixing portion and the fastener, and the second extension portion extends outward from the second fixing portion.

[0012] As a preferred embodiment, the first extension extends vertically outward from the first fixing portion, and the second extension extends vertically outward from the second fixing portion.

[0013] As a preferred embodiment, the first extension includes a first connecting portion and a second connecting portion, and the second extension includes a third connecting portion and a fourth connecting portion, both of which are arc-shaped structures. One end of the first connecting portion is connected to the first fixing portion and extends vertically outward from the first fixing portion. One end of the second connecting portion is connected to the other end of the first connecting portion, and the main body is disposed at the other end of the second connecting portion. One end of the third connecting portion is connected to the second fixing portion and extends vertically outward from the second fixing portion. One end of the fourth connecting portion is connected to the other end of the third connecting portion, and the fastener is disposed at the other end of the fourth connecting portion.

[0014] As a preferred embodiment, the buckle is provided with a buffer groove inside. The buffer groove can provide a buffering effect when the first frame and the second frame are fastened together, so that the first frame and the second frame can open and close freely and are more convenient to use.

[0015] As a preferred embodiment, the third hook portion has a structure of two hooks.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] A positioning groove is provided on the first frame, and a fastener is provided on the second frame. The fastener is detachably installed in and adapted to the positioning groove. A third hook is installed in the positioning groove, and a first hook is installed in a first recess, which communicates with the positioning groove and forms a first buffer space. A second hook is installed in a second recess, which communicates with the positioning groove and forms a second buffer space. When the first and second frames are subjected to an upward force, the first frame gradually moves away from the second frame, and the first buffer space gradually decreases until the third hook abuts against the first hook. When the first and second frames are subjected to a downward force, the first frame gradually moves away from the second frame, and the second buffer space gradually decreases until the third hook abuts against the second... The hooks abut against each other; this type of aluminum frame for suitcases effectively enhances the stability of the product's connection structure. When the suitcase is overloaded and subjected to upward force, the cooperation between the third hook and the first hook effectively prevents the aluminum frame from being stretched open due to excessive load, thus preventing damage to the suitcase and loss of items inside. When a user sits on the suitcase and it is subjected to downward force, the cooperation between the third hook and the second hook effectively improves the suitcase's load-bearing capacity. The aluminum frame is less prone to deformation and inward denting, preventing damage to the suitcase, improving safety during use, bringing convenience to the user, enhancing the user experience, improving the quality of the suitcase, extending the product's lifespan, and meeting the need for suitcases that can support weight and allow for temporary rest.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the first preferred embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of the second preferred embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of the third preferred embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of the fourth preferred embodiment of the present invention.

[0023] Explanation of reference numerals in the attached diagram:

[0024] 10. First frame 11. Positioning groove

[0025] 12. First hook part; 13. Second hook part

[0026] 14. Main body; 15. First fixing part

[0027] 151. First fixing groove; 16. First extension.

[0028] 161. First connecting part; 162. Second connecting part

[0029] 20. Second frame 21. Fasteners

[0030] 211. Third hook part; 212. First groove

[0031] 213. Second groove; 214. Buffer groove

[0032] 22. Second fixing part; 221. Second fixing groove

[0033] 23. Second extension 231. Third connecting part

[0034] 232, Fourth connecting part 201, First buffer space

[0035] 202. Second buffer space. Detailed Implementation

[0036] Please refer to Figure 1 As shown, it illustrates the specific structure of the first preferred embodiment of the present invention, including a first frame 10 and a second frame 20.

[0037] The first frame 10 is provided with a positioning groove 11, and the two ends of the positioning groove 11 are provided with a first hook portion 12 and a second hook portion 13. In this embodiment, the first frame 10 includes a main body 14 and a first fixing portion 15. The main body 14 is provided with the above-mentioned positioning groove 11, and the first fixing portion 15 extends outward from one end of the main body 14. The first fixing portion 15 is used to install the first frame 10 onto the side of the first cover of the suitcase.

[0038] The second frame 20 is provided with a fastener 21, which is detachably disposed in and adapted to the positioning groove 11. The fastener 21 includes a third hook portion 211, a first groove 212, and a second groove 213. The third hook portion 211 is disposed in the positioning groove 11. The first groove 212 and the second groove 213 are respectively disposed on both sides of the third hook portion 211. The first hook portion 212 is disposed in the first groove 212, which communicates with the positioning groove 11 and forms a first buffer space 201. The second hook portion 213 is disposed in the second groove. In 213, the second groove 213 communicates with the positioning groove 11 and forms a second buffer space 202; in this embodiment, the second frame 20 is provided with a second fixing part 22, which extends outward from one end of the buckle 21, and the second fixing part 22 is used to install the second frame 20 onto the side of the second cover of the suitcase; the buckle 21 is provided with a buffer groove 214 inside, and the buffer groove 214 can achieve a buffering effect when the first frame 10 and the second frame 20 are fastened together, so that the first frame 10 and the second frame 20 can open and close freely, making it more convenient to use.

[0039] When the first frame 10 and the second frame 20 are subjected to an upward force, the first frame 10 gradually moves away from the second frame 20, and the first buffer space 201 gradually decreases until the third hook part 211 and the first hook part 12 come into contact with each other.

[0040] When the first frame 10 and the second frame 20 are subjected to a downward force, the first frame 10 gradually moves away from the second frame 20, and the second buffer space 202 gradually decreases until the third hook part 211 and the second hook part 13 come into contact with each other.

[0041] The usage process of this embodiment is described in detail below:

[0042] The suitcase includes a first lid, a second lid, a zipper, a first frame 10, and a second frame 20. One side of the first lid is hinged to one side of the second lid, and the zipper is located between the first and second lids. During installation, the first frame 10 is attached to the side of the first lid, and the second frame 20 is attached to the side of the second lid. Both the first frame 10 and the second frame 20 are located outside the zipper. In use, after zipping up, the second frame 20 and the first frame 10 are engaged and locked together. A third hook 211 is located in a positioning groove 11, a first hook 12 is located in a first groove 212, and a second hook 13 is located in a second groove 213.

[0043] When the luggage is overloaded, the first frame 10 and the second frame 20 will be subjected to an upward (outward) force, causing the zipper of the luggage to tend to open. At this time, the first frame 10 gradually moves away from the second frame 20, and the first buffer space 201 gradually decreases until the third hook part 211 abuts against the first hook part 12. This can effectively prevent the aluminum frame from being opened due to excessive load on the luggage, thus preventing damage to the luggage, preventing damage to the aluminum frame and zipper, preventing the loss of items inside the luggage, making it safer and more secure to use, improving the overall quality of the luggage, enhancing the stability of the entire luggage, and extending the service life of the luggage.

[0044] When users are queuing at the airport or waiting at the train station, they can sit on the suitcase for a temporary rest. When a user sits on the suitcase, the first frame 10 and the second frame 20 will be subjected to a downward (inward) force. At this time, the first frame 10 gradually moves away from the second frame 20, and the second buffer space 202 gradually decreases until the third hook 211 and the second hook 13 abut against each other. This helps to enhance the stability of the entire suitcase, increases the load-bearing capacity of the suitcase, allows it to support people sitting on it without easily damaging the suitcase, improves the user experience, and meets the user's need to sit on the suitcase for a temporary rest.

[0045] Please refer to Figure 2 As shown, it illustrates the specific structure of the second preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, except that:

[0046] The first frame 10 is provided with a first extension 16, which is disposed between the first fixing part 15 and the main body 14. The first extension 16 extends outward from the first fixing part 15. The second frame 20 is provided with a second extension 23, which is disposed between the second fixing part 22 and the fastener 21. The second extension 23 extends outward from the second fixing part 22. Specifically, the first extension 16 extends vertically outward from the first fixing part 15, and the second extension 23 extends vertically outward from the second fixing part 22.

[0047] The usage process of this embodiment is basically the same as that of the first preferred embodiment described above, so it will not be described in detail here.

[0048] Please refer to Figure 3 As shown, it illustrates the specific structure of the third preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, except that:

[0049] The first fixing part 15 is provided with a first fixing groove 151 for fixing with external screws, and the second fixing part 22 is provided with a second fixing groove 221 for fixing with external screws. The structure is simple and the assembly is convenient and quick. Specifically, both the first fixing groove 151 and the second fixing groove 221 are arc-shaped. The first frame 10 is provided with a first extension 16, which is located between the first fixing part 15 and the main body 14. The first extension 16 extends outward from the first fixing part 15. The second frame 20 is provided with a second extension 23, which is located between the second fixing part 22 and the buckle 21. The second extension 23 extends outward from the second fixing part 22. Specifically, the first extension 16 extends vertically outward from the first fixing part 15, and the second extension 23 extends vertically outward from the second fixing part 22. The third hook part 211 has a structure of two hooks.

[0050] The usage process of this embodiment is basically the same as that of the first preferred embodiment described above, so it will not be described in detail here.

[0051] Please refer to Figure 4 As shown, it illustrates the specific structure of the fourth preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, except that:

[0052] The first fixing part 15 is provided with a first fixing groove 151 for fixing with external screws, and the second fixing part 22 is provided with a second fixing groove 221 for fixing with external screws. The structure is simple and the assembly is convenient and quick. Specifically, both the first fixing groove 151 and the second fixing groove 221 are arc-shaped. The first frame 10 is provided with a first extension 16, which is disposed between the first fixing part 15 and the main body 14, and extends outward from the first fixing part 15. The second frame 20 is provided with a second extension 23, which is disposed between the second fixing part 22 and the fastener 21, and extends outward from the second fixing part 22. The first extension 16 includes a first connecting part 16. The second connecting portion 162 and the second extension portion 23 include a third connecting portion 231 and a fourth connecting portion 232, both of which are arc-shaped structures. One end of the first connecting portion 161 is connected to the first fixing portion 15 and extends vertically outward from the first fixing portion 15. One end of the second connecting portion 162 is connected to the other end of the first connecting portion 161, and the main body 14 is disposed at the other end of the second connecting portion 162. One end of the third connecting portion 231 is connected to the second fixing portion 22 and extends vertically outward from the second fixing portion 22. One end of the fourth connecting portion 232 is connected to the other end of the third connecting portion 231, and the fastener 21 is disposed at the other end of the fourth connecting portion 232.

[0053] The usage process of this embodiment is basically the same as that of the first preferred embodiment described above, so it will not be described in detail here.

[0054] The key design feature of this utility model is:

[0055] A positioning groove is provided on the first frame, and a fastener is provided on the second frame. The fastener is detachably installed in and adapted to the positioning groove. A third hook is installed in the positioning groove, and a first hook is installed in a first recess, which communicates with the positioning groove and forms a first buffer space. A second hook is installed in a second recess, which communicates with the positioning groove and forms a second buffer space. When the first and second frames are subjected to an upward force, the first frame gradually moves away from the second frame, and the first buffer space gradually decreases until the third hook abuts against the first hook. When the first and second frames are subjected to a downward force, the first frame gradually moves away from the second frame, and the second buffer space gradually decreases until the third hook abuts against the second... The hooks abut against each other; this type of aluminum frame for suitcases effectively enhances the stability of the product's connection structure. When the suitcase is overloaded and subjected to upward force, the cooperation between the third hook and the first hook effectively prevents the aluminum frame from being stretched open due to excessive load, thus preventing damage to the suitcase and loss of items inside. When a user sits on the suitcase and it is subjected to downward force, the cooperation between the third hook and the second hook effectively improves the suitcase's load-bearing capacity. The aluminum frame is less prone to deformation and inward denting, preventing damage to the suitcase, improving safety during use, bringing convenience to the user, enhancing the user experience, improving the quality of the suitcase, extending the product's lifespan, and meeting the need for suitcases that can support weight and allow for temporary rest.

[0056] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A structurally reinforced aluminum frame for luggage, characterized in that: The device includes a first frame and a second frame. The first frame has a positioning groove, with a first hook and a second hook at each end. The second frame has a fastener detachably mounted in and adapted to the positioning groove. The fastener includes a third hook, a first groove, and a second groove. The third hook is located in the positioning groove, and the first and second grooves are located on opposite sides of the third hook. The first hook is located in the first groove, which communicates with the positioning groove and forms a first buffer space. The second hook is located in the second groove, which communicates with the positioning groove and forms a second buffer space. When the first and second frames are subjected to an upward force, the first frame gradually moves away from the second frame, and the first buffer space gradually decreases until the third hook and the first hook abut against each other. When the first and second frames are subjected to a downward force, the first frame gradually moves away from the second frame, and the second buffer space gradually decreases until the third hook and the second hook abut against each other.

2. The structurally reinforced aluminum frame for luggage according to claim 1, characterized in that: The first frame includes a main body and a first fixing part. The main body is provided with the aforementioned positioning groove, and the first fixing part extends outward from one end of the main body. The second frame is provided with a second fixing part, which extends outward from one end of the buckle.

3. The structurally reinforced aluminum frame for luggage according to claim 2, characterized in that: The first fixing part is provided with a first fixing groove for fixing with an external screw, and the second fixing part is provided with a second fixing groove for fixing with an external screw.

4. The structurally reinforced aluminum frame for luggage according to claim 3, characterized in that: Both the first fixing groove and the second fixing groove are arc-shaped.

5. The structurally reinforced aluminum frame for luggage according to claim 2, characterized in that: The first frame is provided with a first extension portion, which is disposed between the first fixing portion and the main body, and the first extension portion extends outward from the first fixing portion. The second frame is provided with a second extension portion, which is disposed between the second fixing portion and the fastener, and the second extension portion extends outward from the second fixing portion.

6. The structurally reinforced aluminum frame for luggage according to claim 5, characterized in that: The first extension extends vertically outward from the first fixing part, and the second extension extends vertically outward from the second fixing part.

7. The structurally reinforced aluminum frame for luggage according to claim 6, characterized in that: The first extension includes a first connecting part and a second connecting part. The second extension includes a third connecting part and a fourth connecting part, both of which are arc-shaped structures. One end of the first connecting part is connected to the first fixing part and extends vertically outward from the first fixing part. One end of the second connecting part is connected to the other end of the first connecting part, and the main body is disposed at the other end of the second connecting part. One end of the third connecting part is connected to the second fixing part and extends vertically outward from the second fixing part. One end of the fourth connecting part is connected to the other end of the third connecting part, and the fastener is disposed at the other end of the fourth connecting part.

8. The structurally reinforced aluminum frame for luggage according to claim 1, characterized in that: The buckle has a buffer groove inside.

9. The structurally reinforced aluminum frame for luggage according to claim 1, characterized in that: The third hook part has a structure of two hooks.