Travel suitcase with pulley reinforcing structure

Abstract

The utility model relates to the technical field of travel cases, in particular to a travel case with a pulley reinforcing structure, the pulley reinforcing structure comprises a case body, a pull rod and a pulley device, the case body is of a hollow cavity structure, a metal frame is arranged in the cavity, and the pulley device is arranged on the pull rod. The end, away from the pull handle, of the pull rod penetrates through the box body from top to bottom and then is connected with a pull rod base in the box body, the pulley device is arranged at the bottom of the box body and comprises a pulley bin sunken from the outside of the box body to the inside of the box body and pulleys arranged in the pulley bin in a sliding mode, and pulley reinforcing pieces are arranged on the pulley bin and located in the box body. The pulley reinforcing piece is fixedly connected with the pulley bin through a bolt. The pulley structure has the advantages that the structure is simple, the design is reasonable, and the impact force borne by the pulley structure is distributed to other firm parts in the box body by reinforcing the pulley, so that the impact resistance is enhanced, the risk of deformation or embrittlement of the box body is reduced, and the safe fastening performance of the box body is improved.

Description

Technical Field

[0001] This utility model relates to the field of travel bag technology, specifically a travel bag with a pulley reinforcement structure. Background Technology

[0002] Suitcases are a type of luggage. They consist of a body, a telescopic handle, and wheels, and are widely used due to their convenience. Suitcases have a long history, evolving from simple wooden boxes and large leather trunks for clothing to today's various portable suitcases and rolling cases. High-quality suitcases generally pay attention to detail, with appropriate color combinations, neat stitching, uniform stitch length, no loose threads, smooth and flawless fabric without bubbles or exposed rough edges, and shiny metal hardware. Choosing reputable retailers and brands offers better after-sales service.

[0003] Currently, most suitcases on the market have wheels at the bottom, located at the four corners of the suitcase. These wheels are connected to the bottom of the suitcase using rivets or bolts. The wheels are the direct contact points between the suitcase and the bottom, bearing the weight of the suitcase under normal conditions. When encountering bumpy roads or falling from a height, the impact force is directly applied to the connection between the wheels and the bottom of the suitcase, easily causing deformation or cracking at the connection point. Specifically, since suitcases are generally made of plastic or aluminum, plastic suitcases lack sufficient impact resistance, making the wheel area prone to cracking. Aluminum suitcases, on the other hand, have slightly lower rigidity, causing localized deformation of the wheel area.

[0004] In its utility model patent application No. 202420198223.2, entitled "A Suitcase with Good Security," the inventor proposed a technical solution that uses an internal metal frame to strengthen the overall structural security of the suitcase. Experiments showed this effectively enhanced the overall structural security, but the impact resistance of the wheel area remained unsatisfactory. While thickening the material at the bottom connection point could improve security to some extent, the improvement was limited by material properties, and modifying the suitcase structure required the manufacturer to create new molds, increasing costs and making it unsuitable for existing suitcase products. Therefore, the inventor designed a suitcase with a wheel-reinforced structure. Summary of the Invention

[0005] The purpose of this utility model is to provide a travel bag with a pulley reinforcement structure, which has the advantages of simple structure and reasonable design. By reinforcing the pulleys, the impact force on the pulley structure is distributed to other sturdy parts inside the bag, thereby enhancing impact resistance, reducing the risk of bag deformation or cracking, and improving the safety and tightness of the bag. This solves the problems mentioned in the above technical background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a suitcase with a pulley reinforcement structure, the pulley reinforcement structure including a suitcase body, a pull rod, and a pulley device. The suitcase body is a hollow cavity structure with a metal frame installed inside the cavity. The pull rod, at the end away from the handle, passes through the suitcase body from top to bottom and connects to a pull rod seat inside the suitcase body. The pulley device is located at the bottom of the suitcase body and includes a pulley compartment recessed from the outside of the suitcase body to the inside, and a pulley that is slidably installed in the pulley compartment. A pulley reinforcement component is installed on the pulley compartment inside the suitcase body, and the pulley reinforcement component is fixedly connected to the pulley compartment by bolts.

[0007] Preferably, the enclosure is also equipped with a switch and lock for connecting the enclosure lid.

[0008] Preferably, the pull rod is a telescopic pull rod.

[0009] Preferably, there are two pulley devices, which are symmetrically arranged on both sides of the bottom of the box.

[0010] Preferably, the pulley reinforcement is L-shaped, and both ends of the pulley reinforcement are connected to the frame beams on the metal frame.

[0011] Preferably, a plate-shaped connector is fixedly connected to the pulley reinforcement, and the connector is fixedly connected to the pull rod seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a travel bag with a pulley reinforcement structure. The pulley reinforcement structure includes a case body, a pull rod, and a pulley device. The overall structure is simple and reasonably designed. The pulley device is located at the bottom of the case body and includes a pulley compartment recessed from the outside of the case body to the inside, and a pulley that is slidably installed in the pulley compartment. A pulley reinforcement component is installed on the pulley compartment inside the case body. The pulley reinforcement component is fixedly connected to the pulley compartment by bolts. The pulley reinforcement component can strengthen the joint between the pulley device and the bottom of the case body, and distribute the impact force on the pulley device to the metal frame or pull rod and other sturdy parts, thereby reducing the stress on the bottom joint of the case body, preventing deformation or cracking at the bottom joint of the case body, and thus enhancing the safety and fastness of the case body. Attached Figure Description

[0014] Figure 1 This is a structural diagram of Embodiment 1 of the present utility model;

[0015] Figure 2 This is a front view of Embodiment 1 of the present utility model;

[0016] Figure 3 This utility model Figure 2Enlarged view of A in the middle;

[0017] Figure 4 This is a structural diagram of Embodiment 2 of the present invention;

[0018] Figure 5 This is a front view of Embodiment 2 of the present invention.

[0019] The reference numerals and names in the figure are as follows:

[0020] 1. Box body; 2. Pull rod; 3. Pulley device; 31. Pulley compartment; 32. Pulley; 33. Pulley reinforcement; 34. Bolt; 35. Connector; 4. Handle; 5. Pull rod base; 6. Switch lock; 7. Metal frame; 71. Frame beam. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances. Example 1:

[0024] Please see Figures 1 to 2 This utility model provides an embodiment of a travel bag with a pulley reinforcement structure. The pulley reinforcement structure includes a case body 1, a pull rod 2, and a pulley device 3. The case body 1 is a hollow cavity structure with a metal frame 7 installed inside the cavity. The metal frame 7 can support the case body 1. In this embodiment, the structure of the metal frame 7 adopts the structure in patent number 202420198223.2, which will not be described in detail here. The pull rod 2 extends from top to bottom through the case body 1 and connects to the pull rod seat 5 inside the case body 1 at the end away from the handle 4. The pulley device 3 is located at the bottom of the case body 1. In this embodiment, there are two pulley devices 3, which are symmetrically arranged on both sides of the bottom of the case body 1.

[0025] Specifically, the box body 1 is also equipped with a switch lock 6 for connecting the box cover.

[0026] Specifically, the pull rod 2 is a telescopic pull rod.

[0027] Please see Figure 3 The pulley device 3 in the figure includes a pulley chamber 31 recessed from the outside of the box 1 to the inside, and a pulley 32 slidably disposed in the pulley chamber 31. A pulley reinforcement 33 is disposed on the pulley chamber 31 inside the box 1. The pulley reinforcement 33 is fixedly connected to the pulley chamber 31 by bolts 34. The pulley reinforcement 33 not only reinforces the bottom of the box 1, but also bears and distributes the impact force on the pulley device 3. The pulley reinforcement 33 is L-shaped, and its two ends are respectively connected to the frame beam 71 on the metal frame 7. In use, the pulley device 3 distributes the impact force to the metal frame 7, transforming the local force into the overall force, thereby reducing the stress on the bottom joint of the box 1, preventing deformation or cracking at the bottom joint of the box 1, and thus enhancing the safety and fastening of the box 1. Example 2:

[0028] Please see Figure 4 and Figure 5This embodiment has the same structure as Embodiment 1, except that: a plate-shaped connector 35 is fixedly connected to the pulley reinforcement 33. The connector 35 is fixedly connected to the pull rod seat 5. The pulley reinforcement 33 distributes the impact force to the pull rod seat 5. The pull rod seat 5 can be used to share the impact force of the pulley device 3, avoiding deformation or cracking at the bottom joint of the box 1, thereby enhancing the safety and fastness of the box 1. Other parts of this embodiment that are not explained refer to Embodiment 1, and will not be repeated here.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A travel bag with a pulley reinforcement structure, characterized by: The utility model relates to a kind of suitcase, including box (1), pull rod (2) and pulley device (3), the box (1) is the cavity structure of inside hollow, metal frame (7) is arranged in the cavity, the pull rod (2) is connected by being pulled rod seat (5) in the box (1) after being penetrated from top to bottom by box (1) with handle (4) one end away, the pulley device (3) is arranged at the bottom of box (1), it includes pulley bin (31) by the recess of box (1) from outside to inside and pulley (32) slidingly arranged in pulley bin (31), pulley bin (31) is provided with pulley reinforcing part (33) in the inside of box (1), pulley reinforcing part (33) is fixedly connected with pulley bin (31) by bolt (34).

2. A luggage case with a pulley reinforcement structure according to claim 1, wherein: The box (1) is further provided with a switch lock (6) connected to the box cover.

3. The luggage case with pulley reinforcement structure of claim 1, wherein: The pull rod (2) is a telescopic pull rod.

4. The luggage case with pulley reinforcement structure of claim 1, wherein: The pulley device (3) is provided with two, and the two pulley devices (3) are symmetrically arranged on both sides of the bottom of the box (1).

5. The luggage case with pulley reinforcement structure of claim 1, wherein: The pulley reinforcing part (33) is L-shaped, and the two ends of the pulley reinforcing part (33) are respectively connected to the frame cross beam (71) on the metal frame (7).

6. The luggage case with pulley reinforcement structure of claim 1, wherein: The pulley reinforcing part (33) is fixedly connected with a sheet-shaped connecting piece (35), and the connecting piece (35) is fixedly connected with the pull rod seat (5).

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