Wheel set convenient to disassemble and luggage case
By introducing a connecting mechanism of threaded cap and connecting shaft at the bottom of the trolley case, the problems of low roller life and difficult disassembly are solved, enabling convenient replacement and flexible installation of the roller.
Patent Information
- Application Number
- CN202423093995.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The lifespan of existing suitcase rollers is shorter than that of the suitcase body, and the traditional assembly method makes it difficult to disassemble and replace the rollers.
The connection mechanism uses a threaded cap and a connecting shaft, and the connection is prevented from detaching by a limiting flange. The threaded cap and the connecting part are detachable, and the connecting shaft and the wheel seat are detachable. Combined with the internal and external thread groove design, it can be quickly disassembled and assembled.
It facilitates quick disassembly and replacement of the rollers, improving their flexibility and lifespan.
Smart Images

Figure CN223568833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of trolley case accessories, specifically to a set of wheels and a suitcase that are easy to disassemble. Background Technology
[0002] As a type of mobile storage device, a rolling suitcase is typically used to store a large number of items together while carrying them. It is a portable container that usually consists of a suitcase body and a top handle. In addition, for easy movement, the bottom of the suitcase is often equipped with wheels.
[0003] In existing technologies, the rollers of commonly available suitcases are usually fixed directly to the mounting point on the bottom of the suitcase using screws or rivets. The advantage of this method is that the fixation is reliable, but the disadvantages are also obvious. Because the rollers are in frequent contact with the ground during long-term use of the suitcase, the lifespan of the rollers is usually shorter than the lifespan of the suitcase itself. The traditional assembly method makes it difficult to disassemble the rollers and make it inconvenient to replace them. Therefore, a wheel set and suitcase that are easy to disassemble are provided to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an easily detachable wheel set and suitcase, solving the problem that because the rollers of a suitcase frequently come into contact with the ground during prolonged use, their lifespan is usually shorter than that of the suitcase itself. Traditional assembly methods also make it difficult to disassemble and replace the rollers.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wheel set and suitcase that are easy to disassemble, comprising a connecting part integrally formed on the bottom surface of the suitcase and a wheel seat disposed on the roller. A connecting mechanism is provided between the wheel seat and the connecting part. The connecting mechanism includes a threaded cap and a connecting shaft. The threaded cap is installed at the bottom of the connecting part. A limiting flange extends outward from the middle of the connecting shaft. The lower end of the connecting shaft passes through the threaded cap and is connected to the wheel seat. The upper end of the connecting shaft is movably engaged between the threaded cap and the connecting part through the limiting flange.
[0006] Preferably, the threaded cap and the connecting part are detachably connected.
[0007] Preferably, the inner bottom of the connecting part is provided with an internal thread groove, and the upper outer surface of the threaded cap is provided with an external thread groove, and the external thread groove is threadedly connected to the internal thread groove.
[0008] Preferably, the top end of the internal thread groove is provided with a first through hole, and the top end of the connecting shaft is movably inserted into the first through hole.
[0009] Preferably, the inside of the threaded cap is provided with a second through hole, the outer diameter of the connecting shaft is smaller than the inner diameter of the second through hole, and the outer diameter of the limiting flange is greater than the inner diameter of the second through hole.
[0010] Preferably, the wheel seat is detachably connected with the connecting shaft.
[0011] Preferably, the wheel seat is riveted with the connecting shaft.
[0012] Preferably, the top of the wheel seat is integrally formed with an internal screw pipe, the bottom end of the connecting shaft is integrally formed with an external screw column, and the external screw column is threadedly connected in the internal screw pipe.
[0013] Preferably, the outer wall of the threaded cap is integrally formed with a handle part.
[0014] Preferably, the side of the handle part away from the connecting part is inclined away from the connecting part.
[0015] The utility model discloses a wheel group convenient to disassemble and a luggage case, and has the beneficial effects as follows: a connecting mechanism is arranged between the connecting part of the bottom of the draw-bar box and the wheel seat of the roller, the connecting mechanism is provided with a group of connecting shafts in the inside of the threaded cap, the connecting shafts are provided with limiting flanges on the outer surfaces to realize the anti-disconnection connection with the threaded cap, the threaded cap and the connecting part are detachably connected, the bottom end of the connecting shaft and the wheel seat are detachably connected, so that the whole roller assembly can be quickly disassembled and assembled with the connecting part of the bottom of the draw-bar box, compared with the traditional screw fixing or riveting fixing mode, has more flexible installation effect, and is convenient for disassembling and replacing when the roller assembly is damaged. ACCURATE DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.
[0017] Figure 1 It is the whole assembly state structural diagram of the utility model;
[0018] Figure 2 It is the whole structure explosion drawing of the utility model;
[0019] Figure 3 It is the connecting part and the threaded cap structure diagram of the utility model;
[0020] Figure 4 It is the wheel seat structure diagram of the utility model;
[0021] Figure 5The utility model discloses a connecting shaft structure schematic diagram.
[0022] In the drawing: 1, wheel seat; 12, inner screw pipe; 2, connecting portion; 22, inner thread groove; 23, first through hole; 3, connecting mechanism; 31, threaded cap; 32, connecting shaft; 33, outer thread groove; 34, handle portion; 35, second through hole; 36, limiting flange; 37, outer stud. DETAILED DESCRIPTION
[0023] In order to make the utility model embodiment's purpose, technical scheme and advantage more clear, to the technical scheme in the utility model embodiment, clear, complete, it is obvious that the described embodiment is the part embodiment of the utility model, instead of all embodiments. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making creative labor belong to the range of the utility model protection.
[0024] The embodiment of the application provides a wheel set and a luggage case convenient to disassemble, solves the problem that the service life of the rolling wheel is usually lower than the service life of the trolley case due to the frequent contact of the rolling wheel with the ground in the long-time use process of the trolley case, and the traditional assembly mode leads to great difficulty in disassembling the rolling wheel and is inconvenient for replacing the rolling wheel.
[0025] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.
[0026] The utility model embodiment discloses a wheel set and a luggage case convenient to disassemble.
[0027] According to the drawings Figures 1-5 As shown, the connecting portion 2 is integrally formed on the bottom surface of the trolley case, and the wheel seat 1 is arranged on the rolling wheel, and the connecting mechanism 3 is arranged between the wheel seat 1 and the connecting portion 2, the connecting mechanism 3 comprises a threaded cap 31 and a connecting shaft 32, the threaded cap 31 is installed at the bottom of the connecting portion 2, the middle part of the connecting shaft 32 extends outward and is provided with a limiting flange 36, the lower end of the connecting shaft 32 penetrates through the threaded cap 31 and is connected with the wheel seat 1, and the upper end of the connecting shaft 32 is movably clamped between the threaded cap 31 and the connecting portion 2 through the limiting flange 36.
[0028] The connecting mechanism 3 is provided with a group of connecting shafts 32 inside the threaded cap 31, the connecting shafts 32 are prevented from being disconnected with the threaded cap 31 by being provided with limiting flanges 36 on the outer surface, meanwhile, the threaded cap 31 is detachably connected with the connecting part 2, and the bottom end of the connecting shaft 32 is detachably connected with the wheel seat 1, so that the whole roller assembly can be quickly disassembled and assembled with the connecting part 2 at the bottom of the trolley case, compared with the traditional screw fixing or riveting fixing mode, the installation effect is more flexible, and the disassembly and replacement are facilitated when the roller assembly is damaged.
[0029] The threaded cap 31 is detachably connected with the connecting part 2, and in the embodiment, the detachable connection mode is that an inner threaded groove 22 is arranged at the inner bottom of the connecting part 2, an outer threaded groove 33 is arranged at the upper end outer surface of the threaded cap 31, the outer threaded groove 33 is threadedly connected with the inner threaded groove 22, and the connecting mechanism 3 is conveniently disassembled and assembled with the connecting part 2.
[0030] A first through hole 23 is arranged at the top end of the inner threaded groove 22, and the top end of the connecting shaft 32 is movably inserted into the first through hole 23, so that the connecting shaft 32 can be more stable and prevent shaking.
[0031] A second through hole 35 is arranged in the inner part of the threaded cap 31, the outer diameter of the connecting shaft 32 is smaller than the inner diameter of the second through hole 35, and the outer diameter of the limiting flange 36 is greater than the inner diameter of the second through hole 35, so that the connecting shaft 32 is prevented from being disassembled and assembled with the connecting part 2 by the limiting flange 36, and in actual use, the upper and lower sides of the limiting flange 36 are respectively abutted with the bottom of the first through hole 23 and the top of the second through hole 35.
[0032] The wheel seat 1 is detachably connected with the connecting shaft 32, and in the embodiment, the detachable connection mode is that an inner screw pipe 12 is integrally formed at the top of the wheel seat 1, an outer screw column 37 is integrally formed at the bottom end of the connecting shaft 32, and the outer screw column 37 is threadedly connected in the inner screw pipe 12, so that the connecting mechanism 3 is conveniently and quickly disassembled and assembled with the wheel seat 1.
[0033] At the same time, the wheel seat 1 and the connecting shaft 32 can also be installed in a riveting mode.
[0034] An outer wall of the threaded cap 31 is integrally formed with a handle part 34, one side of the handle part 34 outwardly inclined to the side away from the connecting part 2, so as to conveniently twist the threaded cap 31 for disassembly and assembly, and the downward inclined design prevents the hand part from being in friction contact with the connecting part 2 when the whole body is twisted, and is more convenient to use.
[0035] A luggage case, comprising a case body, and a wheel set detachably arranged on a bottom surface of the case body.
[0036] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A wheel set for facilitating disassembly, comprising a connecting portion (2) integrally formed on the bottom surface of a draw-bar box and a wheel seat (1) provided on a roller, characterized in that, The connecting mechanism (3) is arranged between the wheel seat (1) and the connecting part (2), and comprises a threaded cap (31) and a connecting shaft (32). The threaded cap (31) is arranged at the bottom of the connecting part (2). The middle part of the connecting shaft (32) extends outward and is provided with a limiting flange (36). The lower end of the connecting shaft (32) penetrates through the threaded cap (31) and is connected with the wheel seat (1). The upper end of the connecting shaft (32) is movably clamped between the threaded cap (31) and the connecting part (2) through the limiting flange (36).
2. A wheel set for facilitating removal according to claim 1, characterized in that: The threaded cap (31) and the connecting part (2) are detachably connected.
3. A wheel set for facilitating removal according to claim 2, wherein: The inner bottom of the connecting part (2) is provided with an internal thread groove (22), and the upper end of the threaded cap (31) is provided with an external thread groove (33). The external thread groove (33) is threadedly connected with the internal thread groove (22).
4. A wheel set for facilitating removal according to claim 3, wherein: The top end of the internal thread groove (22) is provided with a first through hole (23), and the top end of the connecting shaft (32) is movably inserted into the first through hole (23).
5. A wheel set for facilitating removal according to claim 4, wherein: The inside of the threaded cap (31) is provided with a second through hole (35). The outer diameter of the connecting shaft (32) is smaller than the inner diameter of the second through hole (35), and the outer diameter of the limiting flange (36) is greater than the inner diameter of the second through hole (35).
6. A wheel set for facilitating removal according to claim 1, wherein: The wheel seat (1) and the connecting shaft (32) are detachably connected or riveted.
7. A wheel set for facilitating removal according to claim 6, wherein: The top of the wheel seat (1) is integrally formed with an internal screw pipe (12), and the bottom of the connecting shaft (32) is integrally formed with an external screw column (37). The external screw column (37) is threadedly connected in the internal screw pipe (12).
8. The wheel set of claim 1, wherein: The outer wall of the threaded cap (31) is integrally formed with a handle part (34).
9. A wheel set for facilitating removal according to claim 8, wherein: The outward side of the handle part (34) is inclined away from the connecting part (2).
10. A luggage case comprising the wheel set of any one of claims 1-9, characterized in that: The wheel set is detachably arranged on the bottom surface of the box body.