Portable hard draw-bar box

Through the application of double-layer wall structure and high-strength carbon fiber materials, combined with honeycomb reinforcement plates and Velcro partitions, the problems of large weight and easy deformation of traditional trolley boxes are solved, achieving lightweight, hard and reasonable storage.

CN223111187UActive Publication Date: 2025-07-18HANGZHOU DAYU BAG & SUITCASE CO LTD
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Patent Information

Application Number
CN202423071959.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-07-18
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

The traditional hard trolley box has a large weight and insufficient structural strength. The lightweight trolley box structure is prone to deformity and the storage design is unreasonable, resulting in messy items.

Method used

It adopts a double-layer wall structure design, uses high-strength carbon fiber composite material and honeycomb reinforcement plates, and combines Velcro partitions for spatial classification to enhance compressive and impact resistance.

Benefits of technology

It achieves the dual effect of lightweight and hardness, effectively protects items and can be stored reasonably, avoiding squeezing and messy items.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable hard draw-bar box, relates to the technical field of travel suitcases, and comprises a box body and a draw-bar assembly, the box body comprises a box outer shell I and a box outer shell II, the box body adopts a double-layer wall structural design, the box outer shell and the inner shell are both made of novel high-strength carbon fiber composite materials, and the draw-bar assembly is made of high-strength carbon fiber composite materials. The box body is high in strength and light in weight, the first honeycomb reinforcing plate and the second honeycomb reinforcing plate are honeycomb reinforcing ribs, the compression resistance and impact resistance of the box body are enhanced, meanwhile, the weight of the box body is not excessively increased, the double effects of being light and hard of the box body are achieved, and meanwhile a user can use the box body according to the requirements of himself / herself. According to the draw-bar box disclosed by the utility model, the space in the box body can be freely divided through the plurality of pieces of separation cloth, and the interior of the box body is divided into a plurality of storage areas, so that carried articles can be stored in a classified manner, the draw-bar box is more reasonable in storage design, and the articles in the box can be well stored in a classified manner.
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Description

Technical Field

[0001] The utility model relates to the technical field of travel suitcases, in particular to a lightweight hard trolley case. Background Art

[0002] A trolley case is a suitcase with a handle and wheels, designed for easy carrying and moving. It is usually used to place clothes, personal care products and souvenirs needed during the journey. In modern travel, trolley cases are commonly used tools for people to carry items. However, traditional hard trolley cases have many problems.

[0003] For example, Chinese Patent CN217959068U discloses a trolley case, which includes a box body, a mobile phone storage box and a power supply storage box. The box body is provided with an opening groove, and the mobile phone storage box is provided with a mobile phone storage cavity communicating with the opening groove; the power supply storage box is provided with a lead port communicating with the mobile phone storage cavity and a power supply storage cavity communicating with the lead port. The power supply storage box includes an adapter connecting the mobile phone storage box and a flip cover installed on the adapter; when the flip cover is in the first working position, the flip cover is combined with the adapter, and when the flip cover is in the second working position, the flip cover is separated from the adapter to form an object placing port communicating with the power supply storage cavity.

[0004] In order to ensure the strength, traditional hard trolley cases use heavy materials, making the weight of the cases themselves relatively large, increasing the burden on users during the carrying process. Although lightweight trolley cases are lighter in weight, they often sacrifice structural strength and are prone to deformation, cracking, etc. when subjected to extrusion, collision or heavy pressure, and cannot effectively protect the items inside the case. Existing trolley cases cannot achieve the dual effects of high strength and light weight. At the same time, the storage design of trolley cases is not reasonable enough, and the items inside the case cannot be classified and stored well, resulting in the items inside the case being easily squeezed against each other or being messy during the movement. In view of the above problems, a lightweight hard trolley case is proposed. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and a lightweight hard trolley case is proposed.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A portable hard pull rod box, comprising a box body and a pull rod assembly. The box body includes an outer box shell one and an outer box shell two. One side of the outer box shell one is rotatably connected to one side of the outer box shell two. An inner shell one is fixedly connected to the inner side of the outer box shell one, and an inner shell two is fixedly connected to the inner side of the outer box shell two. A honeycomb reinforcing plate one is fixedly installed between the outer box shell one and the inner shell one, and a honeycomb reinforcing plate two is fixedly installed between the outer box shell two and the inner shell two. A plurality of honeycomb-shaped holes are formed in the outer sides of the honeycomb reinforcing plate one and the honeycomb reinforcing plate two. A plurality of magic strips are symmetrically and fixedly connected to the inner wall of the inner shell two. A plurality of partition cloths are arranged inside the inner shell two. A plurality of magic tapes are symmetrically sewn on both sides of the partition cloth, and the outer sides of the magic tapes are adhered to the outer sides of the magic strips.

[0007] Preferably, the pull rod assembly includes a support plate, an assembly frame, a fixing plate, a rotating rod and a movable rod. The top of the support plate is fixedly installed with the bottom of the outer box shell two.

[0008] Preferably, two moving wheels are symmetrically and rotatably connected to both ends of the bottom of the support plate, and a support foot is fixedly installed at one end of the support plate.

[0009] Preferably, the bottom of the assembly frame is fixedly installed with the top of the support plate, and two limiting tubes are symmetrically and fixedly connected to the top of the assembly frame.

[0010] Preferably, a pull rod is slidably connected to the top of the limiting tube, and a handle is fixedly connected to the top of the pull rod.

[0011] Preferably, both ends of the rotating rod are fixedly connected to the bottom ends of the limiting tubes, and a protective net is arranged between the rotating rod and the movable rod.

[0012] Preferably, a clamping groove is formed in the outer side of the limiting tube, and both ends of the movable rod are clamped inside the clamping groove.

[0013] Preferably, both ends of the fixing plate are fixedly connected to the top ends of the limiting tubes, and a plurality of hooks are uniformly fixedly connected to the outer side of the fixing plate.

[0014] Preferably, two buckles are symmetrically and rotatably connected to one side of the outer box shell one, two clamping parts are symmetrically and fixedly connected to one side of the outer box shell two, and one end of the buckle is clamped with one end of the clamping part.

[0015] Preferably, a lifting rod is rotatably connected to the top of the outer box shell two.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0017] 1. In the present utility model, when the user uses the luggage case to load items, the partition cloth can move freely within the case body. The user can, according to their own needs, freely divide the space within the case body through multiple partition cloths, partitioning the case body into multiple storage areas, so as to classify and store the carried items. This makes the luggage case more reasonable in its storage design, and can well classify and store the items within the case, avoiding the items within the case being easily squeezed against each other or being in a mess during the moving process.

[0018] 2. In the present utility model, the case body adopts a double-wall structure design. The outer case one, inner case one, outer case two, and inner case two are all made of a new type of high-strength carbon fiber composite material. The carbon fiber composite material is composed of carbon fiber filaments and a special resin matrix, with high strength and light weight, making the case body have an overall high strength and good toughness. The honeycomb reinforcement plate one and the honeycomb reinforcement plate two are both honeycomb-shaped reinforcing ribs. The honeycomb structure can effectively disperse external forces, enhancing the compression resistance and impact resistance of the case body, and at the same time not adding too much weight to the case body, thus meeting the dual effects of the case body being light and rigid, and not being easily deformed or broken when being squeezed, collided, or under heavy pressure, thereby effectively protecting the items within the case. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of a lightweight and rigid luggage case proposed by the present utility model;

[0020] Figure 2 is a rear structural schematic diagram of a lightweight and rigid luggage case proposed by the present utility model;

[0021] Figure 3 is a side view of a lightweight and rigid luggage case proposed by the present utility model;

[0022] Figure 4 is a top view cross-sectional view of a lightweight and rigid luggage case proposed by the present utility model;

[0023] Figure 5 is a Figure 4 detailed enlarged view of part A in a lightweight and rigid luggage case proposed by the present utility model.

[0024] LEGEND DESCRIPTION: 1. Case body; 2. Pull rod assembly; 11. Outer case one; 12. Outer case two; 13. Buckle; 14. Card member; 15. Lift rod; 16. Partition cloth; 17. Magic tape; 18. Magic strip; 19. Inner case one; 110. Inner case two; 111. Honeycomb reinforcement plate one; 112. Honeycomb reinforcement plate two; 21. Support plate; 22. Movable wheel; 23. Support foot; 24. Assembly frame; 25. Limit tube; 26. Card slot; 27. Rotating rod; 28. Protective net; 29. Movable rod; 210. Fixed plate; 211. Hook; 212. Pull rod; 213. Handle. Detailed implementation mode

[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0026] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0027] Embodiment 1: As Figure 1 - Figure 5 shown, the present utility model provides a portable hard pull rod box, which includes a box body 1 and a pull rod assembly 2. The box body 1 includes an outer box shell one 11 and an outer box shell two 12. One side of the outer box shell one 11 is rotatably connected to one side of the outer box shell two 12. An inner shell one 19 is fixedly connected to the inner side of the outer box shell one 11, and an inner shell two 110 is fixedly connected to the inner side of the outer box shell two 12. A honeycomb reinforcing plate one 111 is fixedly installed between the outer box shell one 11 and the inner shell one 19, and a honeycomb reinforcing plate two 112 is fixedly installed between the outer box shell two 12 and the inner shell two 110. A plurality of honeycomb-shaped holes are formed on the outer sides of the honeycomb reinforcing plate one 111 and the honeycomb reinforcing plate two 112. A plurality of magic strips 18 are symmetrically and fixedly connected to the inner wall of the inner shell two 110. A plurality of partition cloths 16 are arranged inside the inner shell two 110. A plurality of magic tapes 17 are symmetrically sewn on both sides of the partition cloth 16, and the outer side of the magic tape 17 is adhered to the outer side of the magic strip 18. Two buckles 13 are symmetrically and rotatably connected to one side of the outer box shell one 11. Two fasteners 14 are symmetrically and fixedly connected to one side of the outer box shell two 12, and one end of the buckle 13 is clamped with one end of the fastener 14. A lifting rod 15 is rotatably connected to the top of the outer box shell two 12.

[0028] The following specifically describes the specific settings and functions of this embodiment: The user can freely divide the space inside the box body 1 according to their own needs through a plurality of partition cloths 16, and divide the inside of the box body 1 into a plurality of storage areas, so as to classify and store the items carried, making the design of the pull rod box more reasonable in terms of storage, and can well classify and store the items in the box, avoiding the items in the box being easily squeezed against each other or being messy during the moving process; After the user loads the items into the box body 1, the outer box shell one 11 can be covered on the top of the outer box shell two 12, and then fixed by clamping the fastener 14 and the buckle 13;

[0029] Meanwhile, the box body 1 adopts a double-wall structure design. A honeycomb reinforcing plate 111 is added between the outer box shell 11 and the inner box shell 19, and a honeycomb reinforcing plate 112 is added between the outer box shell 12 and the inner box shell 110. The outer box shell 11, the inner box shell 19, the outer box shell 12 and the inner box shell 110 are all made of a new type of high-strength carbon fiber composite material. This material has an extremely high strength-to-weight ratio, high strength and light weight. The carbon fiber composite material is composed of carbon fiber filaments and a special resin matrix. Through optimized weaving and molding processes, the box body 1 has overall high strength and good toughness. The honeycomb reinforcing plate 111 and the honeycomb reinforcing plate 112 are both honeycomb-shaped reinforcing ribs. The honeycomb structure can effectively disperse external forces, enhance the compression and impact resistance of the box body 1, and at the same time will not excessively increase the weight of the box body 1, so as to achieve the dual effects of lightness and hardness of the box body 1. It is not easy to deform and break when being squeezed, collided or heavily pressed, thus effectively protecting the items in the box.

[0030] Embodiment 2: As Figure 1 - Figure 3 shown, the pull rod assembly 2 includes a support plate 21, an assembly frame 24, a fixing plate 210, a rotating rod 27 and a movable rod 29. The top of the support plate 21 is fixedly installed with the bottom of the outer box shell 12. Two moving wheels 22 are symmetrically and rotatably connected to both ends of the bottom of the support plate 21, and a support foot 23 is fixedly installed at one end of the support plate 21. The bottom of the assembly frame 24 is fixedly installed with the top of the support plate 21, and two limiting tubes 25 are symmetrically and fixedly connected to the top of the assembly frame 24. A pull rod 212 is slidably connected to the top of the limiting tube 25, and a handle 213 is fixedly connected to the top of the pull rod 212. Both ends of the rotating rod 27 are fixedly connected to the bottom end of the limiting tube 25. A protective net 28 is arranged between the rotating rod 27 and the movable rod 29. A clamping groove 26 is opened on the outer side of the limiting tube 25, and both ends of the movable rod 29 are clamped inside the clamping groove 26. Both ends of the fixing plate 210 are fixedly connected to the top end of the limiting tube 25, and a plurality of hooks 211 are evenly fixedly connected to the outer side of the fixing plate 210.

[0031] The effect achieved by the entire embodiment is that when the suitcase is moving, the user can pull up the handle 213, and the pull rod 212 can slide up and down along the inner wall of the limiting tube 25 to adjust the height of the handle 213 to suit the different needs of the user and users of different heights. At the same time, by adding a plurality of hooks 211 on the back of the box body 1, the user can hang the bag on the hook 211 during the journey. At the same time, the user takes out the movable rod 29 from the clamping groove 26, as Figure 2As shown in the figure, a protective net 28 made of nylon is added between the movable rod 29 and the rotating rod 27, and both sides of the protective net 28 are fixed to the outer side of the limit tube 25, thus forming a storage space. The user can place the bottles or umbrellas carried with them inside the protective net 28. When not in use, the two ends of the movable rod 29 can be fixed to the card slots 26, which provides convenience for the user and makes the design of this suitcase more user-friendly.

[0032] Usage method and working principle of this device: This suitcase consists of a box body 1 and a handle assembly 2. When using this suitcase, just open the outer shell one 11 of the box. The user can, according to the needs of the items to be carried, paste the partition cloth 16 on the magic strip 18 on the inner wall of the outer shell two 12 of the box through the magic tape 17, thus fixing the partition cloth 16 inside the box body 1. The partition cloth 16 can move freely inside the box body 1. The user can, according to their own needs, freely divide the space inside the box body 1 through multiple partition cloths 16, so as to classify and store the carried items, avoiding the items in the box being easily squeezed against each other or being in a mess during the movement.

[0033] At the same time, this box body 1 adopts a double-layer wall structure design. The outer shell one 11, the inner shell one 19, the outer shell two 12 and the inner shell two 110 are all made of a new type of high-strength carbon fiber composite material, which has high strength and light weight. The carbon fiber composite material is composed of carbon fiber filaments and a special resin matrix, making the box body 1 have overall high strength and good toughness. The honeycomb reinforcing plate one 111 and the honeycomb reinforcing plate two 112 are both honeycomb-shaped reinforcing ribs. The honeycomb structure can effectively disperse external forces, enhance the compression resistance and impact resistance of the box body 1, and at the same time will not increase the weight of the box body 1 too much, thus meeting the dual effects of the box body 1 being light and rigid, and not being easily deformed or cracked when being squeezed, collided or under heavy pressure, thereby effectively protecting the items inside the box.

[0034] In addition, by adding multiple hooks 211 on the back of the box body 1, the user can hang the bag on the hooks 211 during the journey. At the same time, the user takes out the movable rod 29 from the card slot 26. As Figure 2 shown in the figure, a protective net 28 made of nylon is added between the movable rod 29 and the rotating rod 27, and both sides of the protective net 28 are fixed to the outer side of the limit tube 25, thus forming a storage space. The user can place the bottles or umbrellas carried with them inside the protective net 28, making the design of this suitcase more user-friendly.

[0035] The above are only the preferred embodiments of the present utility model, and do not limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. A portable hard trolley case, comprising a box body (1) and a trolley rod assembly (2), wherein the box body (1) comprises a first box outer shell (11) and a second box outer shell (12), and one side of the first box outer shell (11) is rotatably connected to one side of the second box outer shell (12), characterized in that: Inside the box outer shell one (11), an inner shell one (19) is fixedly connected. Inside the box outer shell two (12), an inner shell two (110) is fixedly connected. Between the box outer shell one (11) and the inner shell one (19), a honeycomb reinforcing plate one (111) is fixedly installed. And between the box outer shell two (12) and the inner shell two (110), a honeycomb reinforcing plate two (112) is fixedly installed. A number of honeycomb-shaped holes are formed on the outer sides of the honeycomb reinforcing plate one (111) and the honeycomb reinforcing plate two (112). On the inner wall of the inner shell two (110), a number of magic strips (18) are symmetrically and fixedly connected. Inside the inner shell two (110), a number of partition cloths (16) are arranged. On both sides of the partition cloth (16), a number of magic tapes (17) are symmetrically sewn. And the outer side of the magic tape (17) is adhered to the outer side of the magic strip (18).

2. The portable hard pull rod suitcase according to claim 1, wherein: The pull rod assembly (2) includes a support plate (21), an assembly frame (24), a fixing plate (210), a rotating rod (27), and a movable rod (29). The top of the support plate (21) is fixedly installed with the bottom of the box outer shell two (12).

3. The portable hard-sided trolley case according to claim 2, wherein: At both ends of the bottom of the support plate (21), two moving wheels (22) are symmetrically and rotatably connected. And at one end of the support plate (21), a support foot (23) is fixedly installed.

4. The portable hard pull rod suitcase according to claim 2, wherein: The bottom of the assembly frame (24) is fixedly installed with the top of the support plate (21). And at the top of the assembly frame (24), two limiting tubes (25) are symmetrically and fixedly connected.

5. The portable hard-sided luggage case according to claim 4, wherein: A pull rod (212) is slidably connected to the top of the limiting tube (25). And at the top of the pull rod (212), a handle (213) is fixedly connected.

6. The portable hard-sided trolley case according to claim 2, wherein: Both ends of the rotating rod (27) are fixedly connected to the bottom end of the limiting tube (25). A protective net (28) is arranged between the rotating rod (27) and the movable rod (29).

7. The portable hard pull rod suitcase according to claim 4, characterized in that: A card slot (26) is formed on the outer side of the limiting tube (25). And both ends of the movable rod (29) are clamped to the inner side of the card slot (26).

8. The portable hard pull rod suitcase according to claim 4, wherein: Both ends of the fixing plate (210) are fixedly connected to the top end of the limiting tube (25). And on the outer side of the fixing plate (210), a number of hooks (211) are evenly and fixedly connected.

9. The portable hard-sided trolley case according to claim 1, wherein: On one side of the box outer shell one (11), two buckles (13) are symmetrically and rotatably connected. On one side of the box outer shell two (12), two clamping parts (14) are symmetrically and fixedly connected. And one end of the buckle (13) is clamped to one end of the clamping part (14).

10. The portable hard pull rod suitcase according to claim 1, characterized in that: A lifting rod (15) is rotatably connected to the top of the box outer shell two (12).

Citation Information

Patent Citations

  • Draw-bar box

    CN217959068U