A wheel-hub detachable trolley case

By using a detachable wheel hub design and detachable bolts, the problem of difficult replacement of worn suitcase wheels is solved, achieving a long service life and stable movement of the suitcase.

CN224386936UActive Publication Date: 2026-06-23JIAXING HONGGUAN LUGGAGE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAXING HONGGUAN LUGGAGE CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The wheels of existing suitcases are prone to wear due to their fixed structure design and long-term high-frequency operation. As a result, the wheels are difficult to replace after damage, causing the suitcase to lose its mobility.

Method used

The design features detachable wheel hubs, allowing for easy removal and replacement of the base and wheel hubs through the use of mounting bolts and the material characteristics of the base. Flat storage panels and anti-slip strips are also provided on the sides of the box to increase stability and friction.

Benefits of technology

It extends the lifespan of the suitcase, improves the ease of replacing the wheels and the stability of use, and enhances the mobility of the suitcase.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224386936U_ABST
    Figure CN224386936U_ABST
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Abstract

The utility model relates to the field of draw -bar box, disclose a wheel hub detachable draw -bar box, including two bases, two the base all detachable settings below the box body, the top surface of base is provided with depositing groove, depositing groove with box body slidingly arranged, both sides of the box body are fixed with two thread rings respectively, the both sides of base are provided with sleeve hole respectively, sleeve hole and thread ring slidingly insert, the inside screw thread connection of thread ring has the dismounting bolt, the bottom surface of base is provided with two wheel hub bodies, two the base mutually close both sides all are provided with positioning slot, the inside bottom surface of rear positioning slot is provided with rotating hole, rotating hole's inside rotation inserts and has the rotating shaft, the fixed sleeve of rotating shaft on location board, through the dismounting of dismounting bolt in the inside thread ring and the characteristics of base's own material quality, change the base and wheel hub body, prolong the service life of draw -bar box.
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Description

Technical Field

[0001] This utility model relates to the technical field of trolley cases, specifically a trolley case with detachable wheel hubs. Background Technology

[0002] Rolling suitcases are an essential piece of luggage for modern travel, widely used in various travel scenarios due to their portability, functionality, and diverse designs. Their core structure includes a retractable handle, wheels (such as spinner wheels), and the suitcase body. Materials range from lightweight and durable PC, impact-resistant ABS, and abrasion-resistant Oxford cloth, with some high-end products using an aluminum-magnesium alloy frame for enhanced load-bearing capacity.

[0003] According to Chinese Patent No. CN209403817U, a trolley case includes a case body and a movable shaft. A storage box is fixedly connected to the bottom of the back of the case body. A pull rod is fixedly connected to the bottom of the inner cavity of the storage box. A handle is fixedly connected to the top of the pull rod. A zipper is movably connected to the middle of the outer surface of the case body. A separation plate is fixedly connected to the lower end of the inner cavity of the case body. A lifting device is fixedly connected to the bottom of the separation plate. A through hole is opened at the bottom of the case body. Sliding grooves are opened on both the left and right sides of the lower end of the inner cavity of the case body. A connecting plate is fixedly connected to the lower end of the front surface of the case body. A horizontal plate is movably connected to the connecting plate through the movable shaft. A third electric telescopic rod is fixedly installed at the lower end of the front surface of the case body and at the bottom of the connecting plate. The top of the third electric telescopic rod is fixedly connected to the horizontal plate.

[0004] In the above solution, the use of fixed rollers to assist in moving the suitcase still has the following disadvantages: during the use of the suitcase, the rollers are prone to wear due to long-term high-frequency operation, and the fixed structure design makes it difficult to replace the rollers after they are damaged, ultimately causing the suitcase to lose its mobility. Utility Model Content

[0005] The purpose of this utility model is to provide a trolley case with detachable wheel hubs to solve the problem that the rollers are prone to wear due to long-term high-frequency operation, and the fixed structure design makes it difficult to replace the damaged rollers, ultimately causing the case to lose its mobility.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a detachable wheel hub trolley case, comprising two bases, both of which are detachably disposed below the case body. The top surface of each base is provided with a storage groove, which is slidably disposed with the case body. Two threaded rings are fixed on both sides of the case body, and sleeve holes are provided on both sides of each base. The sleeve holes are slidably inserted into the threaded rings, and the internal threads of the threaded rings are connected with mounting bolts. Two wheel hub bodies are disposed on the bottom surface of the base.

[0007] Preferably, positioning grooves are provided on both sides of the two bases that are close to each other, and a rotating hole is provided on the bottom surface of the rear positioning groove. A rotating shaft is inserted into the rotating hole, and a limiting plate is fixedly sleeved on the rotating shaft.

[0008] Preferably, a mounting groove is provided on one side of the box, and a shelf is hinged to the lower part of the mounting groove. A handle is fixed to one side of the shelf.

[0009] Preferably, a limiting hemisphere is fixed on each of the two sides of the mounting groove, and a limiting groove is formed on each of the two sides of the placement plate, with the limiting hemisphere and the limiting groove being slidably arranged.

[0010] Preferably, a pull rod body is provided on one side of the box body, and several anti-slip strips are provided on both sides of the pull rod body.

[0011] Preferably, a number of hooks are provided on one side of the box.

[0012] Compared with existing technologies, a wheel hub-detachable suitcase using the above-mentioned technical solution has the following advantages:

[0013] 1. By installing and removing the bolts inside the threaded ring and taking advantage of the characteristics of the base material itself, the base and wheel hub can be replaced, thus extending the service life of the suitcase.

[0014] 2. Users can apply a force to the shelf in the direction of the mounting groove through the handle, so that the shelf is placed flat on one side of the box. The flat shelf is used to store miscellaneous items. When the shelf is fastened inside the mounting groove, the limiting hemisphere will slide into the limiting groove, which can increase the stability of the shelf in the mounting groove.

[0015] Third, when the user's hand is on the surface of the lever body, the user's palm will be in contact with the anti-slip strips on both sides of the lever body. The anti-slip strips made of rubber increase the roughness of the surface of the lever body, increasing the friction between the user's palm and the lever body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 This is a schematic diagram of the split section in an embodiment.

[0018] Figure 3 This is a schematic diagram of the positioning groove and the disassembly of the limiting plate in an embodiment.

[0019] Figure 4 for Figure 2 A magnified schematic diagram of the local structure at point A in the middle.

[0020] In the diagram: 1. Base; 2. Storage slot; 3. Box body; 4. Threaded ring; 5. Sleeve hole; 6. Mounting bolt; 7. Hub body; 8. Mounting slot; 9. Shelf; 10. Handle; 11. Limiting hemisphere; 12. Limiting slot; 13. Positioning slot; 14. Rotating hole; 15. Rotating shaft; 16. Limiting plate; 17. Pull rod body; 18. Anti-slip strip; 19. Hook. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-3 As shown, a detachable wheel hub trolley case includes two bases 1, which are made of plastic. Both bases 1 are detachably mounted below the case body 3. The top surface of the base 1 has a storage slot 2, which is slidably mounted with the case body 3. Two threaded rings 4 are fixed on both sides of the case body 3. The base 1 has a fitting hole 5 on both sides, which is slidably inserted into the threaded ring 4. The threaded ring 4 is internally threaded with a mounting bolt 6. The bottom surface of the base 1 has two wheel hub bodies 7. The two bases 1 have positioning grooves 13 on their adjacent sides. The bottom surface of the rear positioning groove 13 has a rotating hole 14. A rotating shaft 15 is rotatably inserted into the rotating hole 14. A limiting plate 16 is fixedly mounted on the rotating shaft 15.

[0023] In use, when opening the housing 3, the user will first place the housing 3 flat on the ground. Then the staff will rotate the rotating shaft 15 so that the limiting plate 16 will disengage from the positioning groove 13 on the front base 1 and be fully in the positioning groove 13 on the rear base 1. When the wheel hub body 7 under the housing 3 is damaged, the user will unscrew the corresponding two mounting bolts 6 from the threaded ring 4. Then, using the characteristics of the plastic material of the base 1 itself, a repulsive force will be applied to the upper sides of the base 1 to disengage the sleeve hole 5 from the surface of the threaded ring 4, thus completing the disassembly of the base 1 and the corresponding wheel hub body 7, and replacing the intact base 1 and wheel hub body 7.

[0024] By installing and removing the bolts 6 inside the threaded ring 4, and by utilizing the characteristics of the material of the base 1 itself, the base 1 and the wheel hub body 7 can be replaced, thus extending the service life of the suitcase.

[0025] like Figure 2 and Figure 4 As shown, a mounting groove 8 is provided on one side of the housing 3. A shelf 9 is hinged to the lower part of the mounting groove 8. A handle 10 is fixed to one side of the shelf 9. Limiting hemispheres 11 are fixed to both sides of the mounting groove 8. Limiting grooves 12 are provided on both sides of the shelf 9. The limiting hemispheres 11 and the limiting grooves 12 are slidably arranged.

[0026] In use, the user can apply a force to the shelf 9 in the direction of the mounting groove 8 through the handle 10, so that the shelf 9 is placed flat on one side of the box 3. The flat shelf 9 is used to store miscellaneous items. When the shelf 9 is fastened inside the mounting groove 8, the limiting hemisphere 11 will slide into the limiting groove 12, which can increase the stability of the shelf 9 in the mounting groove 8.

[0027] like Figure 1 and Figure 2 As shown, a pull rod body 17 is provided on one side of the box body 3, and several anti-slip strips 18 are provided on both sides of the pull rod body 17. The anti-slip strips 18 are made of rubber, and several hooks 19 are provided on one side of the box body 3.

[0028] During use, when the user's hand is on the surface of the lever body 17, the user's palm will be in contact with the anti-slip strips 18 on both sides of the lever body 17. The anti-slip strips 18 made of rubber increase the roughness of the surface of the lever body 17, thereby increasing the friction between the user's palm and the lever body 17.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wheel hub detachable trolley case, comprising two bases (1), both bases (1) being detachably disposed below a case body (3), characterized in that, The top surface of the base (1) is provided with a storage groove (2), the storage groove (2) is slidably disposed with the box (3), two threaded rings (4) are fixed on both sides of the box (3), and a sleeve hole (5) is provided on both sides of the base (1). The sleeve hole (5) is slidably inserted with the threaded ring (4), and the threaded ring (4) is internally threaded with a mounting bolt (6). Two wheel hub bodies (7) are provided on the bottom surface of the base (1).

2. The wheel hub-detachable trolley case according to claim 1, characterized in that: The two bases (1) are provided with positioning grooves (13) on both sides that are close to each other. The bottom surface of the rear positioning groove (13) is provided with a rotating hole (14). A rotating shaft (15) is inserted into the rotating hole (14). A limiting plate (16) is fixedly sleeved on the rotating shaft (15).

3. A wheel hub-detachable trolley case according to claim 1, characterized in that: The box (3) has an installation groove (8) on one side, and a shelf (9) is hinged to the lower part of the inside of the installation groove (8). A handle (10) is fixed to one side of the shelf (9).

4. A wheel hub-detachable trolley case according to claim 3, characterized in that: The mounting groove (8) has a limiting hemisphere (11) fixed on both sides of its interior, and the shelf (9) has a limiting groove (12) on both sides of its interior. The limiting hemisphere (11) and the limiting groove (12) are slidably arranged together.

5. A wheel hub-detachable trolley case according to claim 1, characterized in that: A pull rod body (17) is provided on one side of the box body (3), and several anti-slip strips (18) are provided on both sides of the pull rod body (17).

6. A wheel hub-detachable trolley case according to claim 1, characterized in that: Several hooks (19) are provided on one side of the box (3).