High-toughness multifunctional draw-bar box

Abstract

The utility model discloses a high-toughness multifunctional draw-bar box which comprises a box body formed by combining two half shells, namely a front shell and a rear shell through a hinge mechanism, a protruding part protruding outwards is arranged on the front side of the bottom of the front shell. An independent pocket is arranged on the upper portion of the front shell, and the outer surface of the independent pocket is flush with the outer surface of the protruding part. A telescopic adjusting pull rod is arranged on the back of the box body and comprises two parallel telescopic rods and a U-shaped grip connected with the top; four universal roller sets and independent pockets are symmetrically arranged at the four corners of the bottom of the box body, articles such as travel certificates, mobile phones and wallets can be conveniently and rapidly stored and taken, the travel convenience is improved, the outer surfaces of the independent pockets are flush with the outer surface of the protruding part of the bottom of the front shell, and the overall coordinated appearance design is formed.

Description

Technical Field

[0001] This utility model relates to the field of trolley case technology, specifically a high-toughness, multi-functional trolley case. Background Technology

[0002] In modern travel scenarios, rolling suitcases are an indispensable tool for people's daily travel, and their importance is self-evident. With the increasing diversification of travel needs, people are also placing higher demands on the performance and functionality of rolling suitcases.

[0003] In terms of functionality, the internal space layout of traditional rolling suitcases is relatively fixed, with all storage space concentrated inside the suitcase. When you need to temporarily access items, you have to open the whole suitcase, which is not very convenient and cannot meet people's needs for convenient access to personal belongings. Some suitcases also have separate pockets on the outside, but they are usually simple outer protrusions that ignore the overall coordination of the suitcase and have poor aesthetics, which cannot attract consumers. In addition, the roller design of traditional rolling suitcases also has defects. The inner hub of the roller is prone to deformation during long-term use, which affects its normal use.

[0004] To meet people's comprehensive needs for suitcases in terms of durability, functionality, safety, and aesthetics, it is necessary to comprehensively upgrade and optimize the design of suitcases, thereby providing a more practical and reliable suitcase. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model relates to a high-toughness multi-functional trolley case. This case has a simple and reliable structure, effectively solves the aforementioned technical problems, and is suitable for widespread use. To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A high-toughness, multi-functional trolley case, including

[0007] The housing is formed by two half-shells, a front shell and a rear shell, joined together by a hinge mechanism.

[0008] The front side of the bottom of the front shell is provided with an outwardly protruding part;

[0009] An independent pocket is provided on the upper part of the front shell, and the outer surface of the independent pocket is flush with the outer surface of the protrusion.

[0010] The back of the box is equipped with a telescopic adjustable rod, which includes two parallel telescopic rods and a U-shaped handle connected to the top;

[0011] The bottom of the box is symmetrically equipped with four sets of universal casters at the four corners.

[0012] Based on the above scheme and as a preferred embodiment: each set of omnidirectional rollers includes a metal bracket, a wheel body, and a wheel axle. The top of the metal bracket is mounted on the bottom surface of the housing, and its bottom is bent and extended to form a pivot mounting part. The wheel axle passes through the pivot mounting part laterally, and its two ends are respectively connected to the central support part of the wheel body. A support plate is provided between the outer ring frame of the wheel body and the central support part. Several support plates are evenly spaced around the circumference. A triangular reinforcing plate is provided on the outer side of each support plate. The two ends of the triangular reinforcing plate are respectively connected to the central support part and the outer ring frame. The thickness of the triangular reinforcing plate gradually increases from the central support part to the outer ring frame side.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the outer surface of the box is covered with a continuous wave-shaped protrusion structure.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme: the peak height of the continuous wave-shaped protrusion structure is 2-5mm, and the distance between adjacent peaks is 8-15mm.

[0015] Based on the above scheme and as a preferred embodiment of the above scheme: the independent pocket adopts a single-sided fixed connection structure, including a fixed side fixed to the upper part of the front shell, and an opening that can be pulled open along the left, right and top edges, and the opening is provided with a zipper structure around the three sides.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme: the box body is made of toughened composite material.

[0017] Based on the above scheme and as a preferred embodiment of the above scheme: a combination lock device is provided in the center of one side of the box, and the combination lock device is used to control the opening and closing of the box.

[0018] The outstanding and beneficial technical effects of this utility model compared to the prior art are as follows: The suitcase body is made of toughened composite material, which has higher impact resistance and toughness compared to ordinary plastic material; the metal bracket and wheel structure of the universal roller assembly are reinforced, and the combination of the support plate and triangular reinforcing plate effectively disperses the force on the wheels, enhances the load-bearing capacity and wear resistance of the rollers, ensures that the suitcase can move stably on various terrains, and reduces the probability of roller damage; the outer surface of the suitcase is covered with a continuous wave-shaped raised structure, which not only enhances the structural strength of the suitcase body, but also improves the pressure resistance and deformation resistance, while giving the suitcase a unique visual effect and increasing product recognition; an independent pocket is set in the upper part of the front shell for easy and quick access to items such as travel documents, mobile phones, wallets and other frequently used items, improving travel convenience; the outer surface of the independent pocket is flush with the outer surface of the protruding part at the bottom of the front shell, forming a unified and harmonious appearance design, avoiding the protruding part from affecting the placement and movement of the suitcase, while making the lines of the suitcase smooth and natural, combining aesthetics and practicality; the opening and closing of the suitcase is controlled by a password, which effectively prevents luggage from being opened illegally, improves travel security, and protects personal privacy and property security;

[0019] The high-toughness multi-functional trolley case of this invention has significant advantages in terms of materials, structure and functional design, and can meet the comprehensive needs of modern travel for luggage durability, functionality, safety and aesthetics, providing users with a better and more reliable travel experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the suitcase;

[0021] Figure 2 This is a side view of the suitcase;

[0022] Figure 3 This is a schematic diagram of the rear of the suitcase;

[0023] Figure 4 This is a schematic diagram of the omnidirectional roller assembly;

[0024] Figure 5 This is a diagram showing the location of the storage mesh bags. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0026] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The directions or positional relationships shown are for the purpose of describing this utility model only, and are not intended to indicate or imply that the device or component 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.

[0027] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0028] To solve the above technical problems, such as Figure 1-5 As shown, this utility model designs a high-toughness multi-functional trolley case, including a case body 1, which is formed by two half-shells, a front shell 11 and a rear shell 12, combined by a hinge mechanism.

[0029] The front shell 11 has an outwardly protruding part 2 on the bottom front side, and an independent pocket 3 is provided on the upper part of the front shell 11. The outer surface of the independent pocket 3 is flush with the outer surface of the protruding part 2, forming a coordinated overall appearance design. This avoids the protruding part from affecting the placement and movement of the suitcase, while making the lines of the suitcase 1 smooth and natural, combining aesthetics and practicality. The independent pocket 3 facilitates quick access to items such as travel documents, mobile phones, wallets and other frequently used items, improving travel convenience.

[0030] The back of the box 1 is equipped with a telescopic adjustable pull rod 4, which includes two parallel telescopic rods and a U-shaped handle connected to the top, providing a comfortable traction experience and meeting the needs of users of different heights and travel scenarios.

[0031] Four omnidirectional roller sets 5 are symmetrically arranged at the four corners of the bottom of the housing 1. More preferably, each set of omnidirectional roller sets 5 includes a metal bracket 51, a wheel body 52, and a wheel axle 53. The top of the metal bracket 51 is installed on the bottom surface of the housing 1, and its bottom is bent and extended to form a pivot mounting part. The wheel axle 53 passes through the pivot mounting part laterally, and its two ends are respectively connected to the central support part 54 of the wheel body 52. ​​A support plate 55 is provided between the outer ring frame 57 of the wheel body 52 and the central support part 54. Several support plates 55 are evenly spaced around the circumference to form multiple stable support points, effectively dispersing the stress on the wheel body 52 when rotating and enhancing the load-bearing capacity of the wheel body 52. ​​A triangular reinforcing plate 56 is provided on the outer side of each support plate 55. The two ends of the triangular reinforcing plate 56 are connected to the central support 54 and the outer frame 57, respectively. The thickness of the triangular reinforcing plate 56 gradually increases from the central support 54 towards the outer frame 57. This design not only further enhances the structural strength of the wheel 52, but also allows for the gradual dispersion and absorption of stress through the gradually thickening reinforcing plate when subjected to impact. This effectively prevents the wheel 52 from deforming or being damaged under complex terrain or heavy pressure. This reinforced design of the universal roller assembly 5 reduces the problems of inflexible rotation and noise caused by wear during long-term use, ensuring that the suitcase can move smoothly and stably on various terrains, providing users with a more comfortable and reliable user experience, and significantly improving the practicality and durability of the suitcase.

[0032] In this embodiment, it is further preferred that the outer surface of the box 1 is covered with a continuous wave-shaped protrusion structure 6. In addition, the peak height of the continuous wave-shaped protrusion structure 6 is 2-5mm, and the spacing between adjacent peaks is 8-15mm. It has good mechanical properties, can effectively disperse and buffer external force impact, significantly improve the pressure resistance and deformation resistance of the box 1, better protect the internal items, and make the surface of the box 1 form point contact or line contact with the contact surface, reduce large-area friction, reduce wear, and extend the service life of the box 1.

[0033] In this embodiment, it is further preferred that the independent pocket 3 adopts a single-sided fixed connection structure, including a fixed side 31 fixed to the upper part of the front shell 11, and an opening that can be pulled open along the three sides of the left, right and top edges. The opening is provided with a zipper structure around the three sides. This design allows the pocket 3 to fit tightly against the box 1 when closed and to be fully opened when open, providing a spacious storage and retrieval space for the user to quickly take out.

[0034] In this embodiment, it is further preferred that the case 1 is made of a toughened composite material. The matrix material is preferably a blend of modified polycarbonate and polyamide, and the reinforcing fiber is preferably a hybrid of carbon fiber and glass fiber. A core-shell structured acrylate polymer is added as a toughening agent. Compared with ordinary plastic or ABS material, this toughened composite material has higher impact resistance and toughness. When facing accidental situations such as collisions and squeezing that may be encountered during travel, it can effectively resist external forces, reduce the risk of case 1 breaking or deforming, provide more reliable protection for luggage, and extend the service life of the suitcase.

[0035] In this embodiment, it is further preferred that a combination lock device 7 is provided in the center of one side of the suitcase 1. The combination lock device 7 can control the opening and closing of the suitcase by locking the zipper of the suitcase 1. The device specifically includes a lock cylinder and a latch. The lock cylinder is installed on the zipper pull body, and the latch cooperates with the lock cylinder. When the lock cylinder is in the locked state, the latch fixes the zipper hook to prevent it from being pulled open; when the lock cylinder is in the unlocked state, the latch releases the hook, and the zipper can be opened and closed normally. By controlling the opening and closing of the suitcase 1 with a combination lock, the luggage is effectively prevented from being opened illegally, improving the security of travel. The combination lock device 7 is easy to operate, and users can set personalized passwords as needed to better protect personal privacy and property security.

[0036] Based on the above embodiment, a further modification is made: a storage mesh bag 8 is provided on the bottom of one side of the box 1. The storage mesh bag 8 is fixed on three sides and only has an opening at the top, which is used to facilitate users to temporarily place water bottles and other items, thus providing further convenience.

[0037] It is worth noting that the technical features of the combination lock device, zipper structure, and telescopic adjustable lever involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0038] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made by those skilled in the art based on the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-toughness multi-functional trolley case characterized by: The utility model relates to a kind of suitcase, including The box is combined by two half shells of front shell and rear shell through hinged mechanism; The bottom front side of the front shell is provided with outward convex protrusion; Independent pocket is arranged on the upper part of the front shell, and the outer surface of the independent pocket is flush with the outer surface of the convex protrusion; The back of the box is provided with telescopic adjustable pull rod, and the telescopic adjustable pull rod includes two parallel telescopic rods and U-shaped handle connected to the top; Four universal roller groups are arranged on the four corners of the bottom of the box in pairs of symmetry.

2. The high-toughness multi-functional draw-bar box according to claim 1, wherein: Each of the universal roller groups includes a metal bracket, a wheel body and an axle, the top of the metal bracket is mounted on the bottom surface of the box, the bottom of the metal bracket is bent and extended to form a pivot mounting portion, the axle penetrates through the pivot mounting portion in the transverse direction and is connected to the center support portion of the wheel body at both ends, a support sheet is arranged between the outer frame of the wheel body and the center support portion, a plurality of support sheets are arranged uniformly in the circumferential direction, a triangular reinforcing plate is arranged on the outer side of each support sheet, both ends of the triangular reinforcing plate are connected to the center support portion and the outer frame, and the thickness of the triangular reinforcing plate gradually increases from the center support portion to the outer frame.

3. The high-toughness multi-functional draw-bar box according to claim 1, wherein: The outer surface of the box is covered with continuous wave-shaped protruding structure.

4. The high-toughness multi-functional draw-bar box according to claim 3, wherein: The height of the wave crest of the continuous wave-shaped protruding structure is 2-5mm, and the distance between adjacent wave crests is 8-15mm.

5. The high-toughness multi-functional draw-bar box according to claim 1, wherein: The independent pocket adopts a single-sided fixed connection structure, including a fixed side fixed to the upper part of the front shell, and an opening that can be pulled open along the left, right and top three side edges, and a zipper structure is arranged around the three sides of the opening.

6. The high-toughness multi-functional draw-along box according to claim 1, wherein: The box is made of toughened composite material.

7. The high-toughness multi-functional draw-along box according to claim 1, characterized in that: A password lock device is arranged on one side of the box, and the password lock device is used to control the opening and closing of the box.

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