Wheel set structure for luggage

Abstract

The utility model relates to a wheel set structure for a luggage. The wheel set structure comprises at least one universal wheel assembly used for supporting a luggage body to move. Each universal wheel assembly comprises a rolling wheel and a universal joint with one end connected with the rolling wheel. An integrally formed bearing part is arranged at the other end of the universal joint, and the bearing part is connected with the box body; the bearing piece comprises an edge covering structure connected with the corner edges of the bottom of the box body and a step type installation piece used for being fixedly connected with the box body. By arranging the step type mounting piece, connection between the box body and the rolling wheels can be increased, connection between the box body and the rolling wheels is more stable and firmer, movement of the box body is reduced, meanwhile, the high edge design is arranged, the contact area between the box body and the high edge design can be increased, swinging of the box body is reduced, damage to the box body is reduced, and therefore deformation of the box body can be prevented; and through the design of the raised edges, the support of the bottom of the box body can be increased, so that the bearing effect of the box body can be improved.

Description

Technical Field

[0001] This application relates to the technical field of mobile carriers, and in particular to a wheel assembly structure for bags. Background Technology

[0002] In the prior art, wheel sets typically include a steering platform, a wheel frame, and a wheel body. The wheel set is usually installed at the bottom of the mobile housing by bolts and nuts, and its structure is the same as that of a caster wheel. The contact surface between the wheel set and the bottom of the housing is usually supported by a support column or a connecting plate.

[0003] Regarding the aforementioned technologies, since existing wheelsets are typically connected in a planar manner, leaving the sides of the gearbox exposed, excessive loads can cause damage to the gearbox due to insufficient contact area between the gearbox and the wheelset. This results in a significant reduction in the load-bearing capacity and service life of the wheelset. Utility Model Content

[0004] To address the aforementioned problems, this application provides a wheel assembly structure for bags and luggage.

[0005] This application provides a wheel assembly structure for bags, which adopts the following technical solution:

[0006] A wheel assembly structure for luggage includes at least one universal wheel assembly for supporting the movement of the luggage body; characterized in that: the universal wheel assembly includes a roller and a universal joint connected to the roller at one end; an integrally formed support member is provided on the other end of the universal joint, and the support member is connected to the luggage body; the support member includes an edge-wrapping structure connected to the bottom corner edge of the luggage body and a stepped mounting member for fixing the luggage body.

[0007] By adopting the above technical solutions, the connection between the box and the wheel assembly can be improved, making the connection between the box and the wheel assembly relatively stable. By setting the stepped mounting parts, the connection between the box and the wheel assembly can be increased, increasing the contact area between the wheel assembly and the box, making the connection between the box and the rollers more stable and reliable, and reducing the loosening of the wheel assembly. At the same time, the high-side design can increase the contact area between the wheel assembly and the box, reduce the swaying of the box, reduce damage to the box, and thus prevent the box from deforming. The cantilevered edge design can increase the support at the bottom of the box, thereby increasing the load-bearing capacity of the box.

[0008] Preferably, the stepped mounting component is provided with a slot for fixed connection with the housing; a protective sleeve is provided inside the slot.

[0009] By adopting the above technical solution, the connection between the box body and the wheel assembly structure is positioned by setting the slot and protective sleeve. The protective sleeve can protect the locking pins on the box body and improve the locking pin fit. It also reduces the gap between the locking pin and the slot, making the fit more stable and reducing the probability of locking pin breakage.

[0010] Preferably, the edging structure includes a high edge for connecting to the side of the box and a protruding edge for connecting to the bottom of the box; the surface of the high edge that contacts the box is provided with a boss-like structure; the surface of the protruding edge that contacts the bottom of the box is provided with an arc-shaped structure.

[0011] By adopting the above technical solution, and by designing the high edge with a raised platform and the raised edge with an arc edge, the sharpness of the high edge and raised edge is reduced, avoiding scratches on the cabinet, thereby reducing damage to the cabinet, protecting the cabinet, and extending the service life of the cabinet.

[0012] Preferably, the bottom of the stepped mounting component is provided with a supporting hollow column; the supporting hollow column is located below the slot and corresponds to the slot.

[0013] By adopting the above technical solution, the hollow support column can provide stable support for the stepped installation component, thereby increasing the load-bearing capacity of the stepped installation component and thus increasing the load-bearing capacity of the box.

[0014] Preferably, one end of the universal joint is provided with a coupling; the coupling is provided with a connecting shaft that is connected to the roller.

[0015] By adopting the above technical solution and setting a coupling to reduce the deviation between the rollers, the rollers can swing synchronously, making it easy to change the direction of movement of the box, making the box move flexibly, and enabling the box to be used for various routes.

[0016] Preferably, the roller is equipped with a braking system; the braking system is used in conjunction with the roller.

[0017] By adopting the above technical solution, when the container needs to be limited after it has been moved to the appropriate position, the rollers are locked by the braking system, thereby moving the container to the required position.

[0018] Preferably, the universal joint is provided with a rotating shaft connected to the carrier; the two ends of the rotating shaft are respectively located inside the carrier and the universal joint, and are fixed by pins; the universal joint is provided with a pin hole for use with the pin.

[0019] By adopting the above technical solution, it is possible to install the load-bearing component and the universal joint; at the same time, it is also possible to disassemble the universal joint and replace the universal joint and the load-bearing component, which facilitates subsequent maintenance work and keeps the wheel assembly structure in better condition.

[0020] Preferably, both the upper and lower ends of the rotating shaft are provided with gaskets made of non-metallic anti-corrosion material.

[0021] By adopting the above technical solution, the gap between the rotating shaft and the universal joint can be reduced, the vertical movement of the rotating shaft can be reduced, thereby reducing the wobbling of the wheel assembly during movement and reducing the impact on the housing.

[0022] Preferably, the roller includes two hubs disposed opposite each other; the surface of the hubs is provided with a rubber wheel belt.

[0023] By adopting the above technical solution, the wheel hub is protected, reducing damage to the wheel hub. At the same time, the wheel hub and rubber belt can be disassembled and replaced. When replacing, the wheel hub does not need to be disassembled, which saves time and effort and improves replacement efficiency.

[0024] Preferably, dustproof plates are provided on the outer sides of the two oppositely arranged hubs; and the dustproof plates are fixedly installed at both ends of the connecting shaft.

[0025] By adopting the above technical solution and setting up a dustproof plate, the wheel and the connecting shaft are shielded, reducing the entry of dust and protecting the connecting shaft and bearings.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up stepped mounting components, the connection between the box and the wheel assembly can be increased, increasing the contact area between the wheel assembly and the box, making the connection between the box and the rollers more stable and reliable, reducing wheel assembly loosening. At the same time, the high-side design can increase the contact area with the box, reducing box swaying and damage to the box, thereby preventing box deformation. The cantilevered edge design can increase the support at the bottom of the box, thereby increasing the load-bearing capacity of the box.

[0028] 2. By setting a coupling, the deviation between the rollers is reduced, allowing the rollers to swing freely, which facilitates changing the direction of movement of the box, making the box flexible and suitable for various routes;

[0029] 3. By making the high edges and upturned edges curved, the sharpness of the high edges and upturned edges is reduced, thereby reducing damage to the cabinet, protecting the cabinet and extending its service life. Attached Figure Description

[0030] Figure 1 This is the front view of the wheel assembly structure used in luggage;

[0031] Figure 2 This is a schematic diagram of the main structure of a wheel assembly for bags;

[0032] Figure 3 This is a schematic diagram of a single wheel structure for a wheel assembly used in luggage;

[0033] Figure 4 This is a schematic diagram of the load-bearing plate structure of a wheel assembly used in luggage;

[0034] Figure 5 This is a three-dimensional cross-sectional view of the wheel assembly structure used in bags;

[0035] Figure 6 This is a schematic diagram showing the connection between the wheel assembly structure and the rotating shaft used in luggage.

[0036] Figure 7 This is a right-side sectional view of the wheel assembly structure used in bags and luggage.

[0037] Reference numerals: 1. Universal joint; 11. Connecting shaft; 12. Rotating shaft; 13. Pin hole; 14. Braking system; 15. Shim; 16. Coupling; 2. Bearing component; 21. Supporting hollow column; 3. Stepped mounting component; 31. High edge; 32. Cantilever edge; 4. Roller; 41. Hub; 42. Wheel belt; 43. Dustproof plate; 5. Slot; 6. Protective sleeve. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail.

[0039] This application discloses a wheel assembly structure for bags.

[0040] Reference Figure 1 and Figure 2A wheel assembly structure for luggage includes at least one universal wheel assembly for supporting the movement of the luggage body; the universal wheel assembly includes a roller 4 and a universal joint 1 connected to one end of the roller 4; the universal joint 1 is used for steering the roller 4 and the luggage body, and an integrally formed support member 2 is provided on the other end of the universal joint 1, and the support member 2 is connected to the luggage body; the support member 2 plays the role of mainly supporting the luggage body, the support member 2 includes an edge-wrapping structure connected to the bottom corner of the luggage body and a stepped mounting member 3 for fixing and connecting the luggage body; the edge-wrapping structure includes a high edge 31 for connecting to the side of the luggage body and a cantilevered edge 32 for connecting to the bottom of the luggage body; the surface of the high edge 31 that contacts the luggage body is provided with a boss-like structure; the surface of the cantilevered edge 32 that contacts the bottom of the luggage body is provided with an arc-shaped structure, so that the high edge 31 and the cantilevered edge 32 wrap around the bottom corner of the luggage body, and the high edge 31 and the cantilevered edge 32 provide auxiliary support for the luggage body, thereby increasing the load-bearing capacity of the luggage body.

[0041] Reference Figure 4 and Figure 5 The bottom of the stepped mounting component 3 is provided with a supporting hollow column 21; one end of the supporting hollow column 21 is fixedly connected to the bearing plate; the hollow part of the supporting hollow column 21 is aligned with the slot 5, and the other end of the supporting hollow column 21 is fixedly connected to the bottom of the stepped mounting component 3; by inserting the locking post on the box into the slot 5 and the hollow part of the supporting hollow column 21, the wheel set and the box are fixedly installed, the box can be moved, and the fit between the box and the wheel set is stable.

[0042] Reference Figure 6 and Figure 7 The universal joint 1 includes a coupling 16 and a connecting shaft 11. The connecting shaft 11 is installed in the coupling 16 by a positioning pin. The hub 41 on the roller 4 is connected to the connecting shaft 11 by a bearing, thereby enabling the roller 4 to rotate. One end of the rotating shaft 12 is inserted into the universal joint 1, and then a pin is inserted into the pin hole 13, connecting the rotating shaft 12 and the universal joint 1. The carrier 2 is rotatably connected to the universal joint 1 through the rotating shaft 12, allowing the universal joint 1 and the carrier 2 to rotate, enabling the wheel assembly to move accordingly. At the same time, a shim 15 is provided inside the universal joint 1. The shim 15 is located at the upper and lower ends of the rotating shaft 12. By providing the shim 15, the gap between the rotating shaft 12 and the inside of the swing frame can be reduced, reducing the vertical movement of the rotating shaft 12, thereby reducing the shaking of the wheel assembly during movement, and thus reducing the impact on the housing.

[0043] The implementation principle of this application embodiment is as follows:

[0044] Figure 1 and Figure 2This is a schematic diagram of the assembly structure of an embodiment of the wheel set structure for bags in this application. In this embodiment, the wheel set structure includes a universal wheel assembly and a load-bearing component 2. The universal wheel assembly is used to move and support the bag body, facilitating the movement of the bag body. The load-bearing component 2 is used to connect and support the bag body, assisting the universal wheel assembly in bearing and supporting. In this embodiment, the main body includes only two components, and the structure is very simple.

[0045] In the embodiment, the structure of the support member 2 is as follows: Figure 3 and Figure 4 As shown; the load-bearing component 2 includes an edge-sealing structure connected to the bottom corner of the box and a stepped mounting component 3 for fixing the box; wherein the edge-sealing structure includes a high edge 31 for connecting to the side of the box and a cantilevered edge 32 for connecting to the bottom of the box; the two adjacent edges of the high edge 31 and the cantilevered edge 32 are connected by an arc surface; so that the high edge 31 and the cantilevered edge 32 define a semi-enclosed load-bearing area; the stepped mounting component 3 is set in the load-bearing space, and its three adjacent surfaces are connected to the surfaces of the cantilevered edge 32 and the high edge 31 of the load-bearing space enclosed by the high edge 31 and the cantilevered edge 32; the bottom of the stepped mounting component 3 is connected to the cantilevered edge 32; its two adjacent surfaces are connected to the high edge 31; the surface of the high edge 31 that contacts the box is provided with a protrusion. The structure features an arc-shaped surface on the cantilevered edge 32 that contacts the bottom of the housing. The cantilevered edge 32 and the high edge 31 provide corner support for the housing. In practice, a hollow support column 21 is located at the bottom of the slot 5 connecting the stepped mounting component 3 to the housing. One end of the hollow support column 21 is fixedly connected to the bearing plate, aligning the hollow portion of the support column 21 with the slot 5. The locking mechanism at the bottom of the housing engages with the slot 5 and the hollow portion of the support column 21. The other end of the hollow support column 21 is fixedly connected to the bottom of the stepped mounting component 3, providing support for the stepped mounting component 3, reducing deformation, and increasing its load-bearing capacity.

[0046] In the embodiment, the structure of the caster wheel assembly is as follows: Figure 5 and Figure 6 As shown; the caster assembly includes a roller 4 and a universal joint 1 connected to the roller 4 at one end; the universal joint 1 is used for steering the roller 4 and the housing; one end of the universal joint 1 is provided with a rotating shaft 12 connected to the bearing member 2; the other end of the universal joint 1 is provided with a coupling 16; a connecting shaft 11 is installed inside the coupling 16; both ends of the connecting shaft 11 are connected to the roller 4, and the upper and lower ends of the rotating shaft 12 are located in the bearing member 2 and the universal joint 1, respectively. Shims 15 are provided at both the upper and lower ends of the rotating shaft 12. The shims 15 provide a limiting auxiliary function for the rotating shaft 12, so as to stabilize the position of the rotating shaft 12 and reduce the vertical movement of the rotating shaft 12; at the same time, a braking system 14 is provided on the roller 4. The structure of the braking system 14 is the same as that of the braking system 14 in real life, and it works with the roller 4 to brake and limit the movement.

[0047] In the embodiment, the roller 4 structure is as follows: Figure 7 As shown, the roller 4 includes a hub 41 and a wheel belt 42; the wheel belt 42 is fitted onto the surface of the hub 41 to protect the hub 41 and isolate the hub 41 from contact with the ground.

[0048] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wheel set structure for a luggage, comprising at least one universal wheel assembly for supporting the movement of a luggage body; characterized in that: The universal wheel assembly includes a roller (4) and a universal joint (1) connected to the roller (4) at one end; an integrally formed support member (2) is provided on the other end of the universal joint (1), and the support member (2) is connected to the box body; the support member (2) includes an edge-wrapping structure connected to the bottom corner of the box body and a stepped mounting member (3) for fixing and connecting the box body.

2. The wheel set structure for a luggage case according to claim 1, wherein The stepped mounting component (3) is provided with a slot (5) for fixed connection with the box body; a protective sleeve (6) is provided inside the slot (5).

3. The wheel set structure for luggage according to claim 1, wherein The edge-sealing structure includes a high edge (31) for connecting to the side of the box and a raised edge (32) for connecting to the bottom of the box; the surface of the high edge (31) that contacts the box is provided with a boss-like structure; the surface of the raised edge (32) that contacts the bottom of the box is provided with an arc-shaped structure.

4. The wheel set structure for a luggage case according to claim 2, wherein The bottom of the stepped mounting component (3) is provided with a supporting hollow column (21); the supporting hollow column (21) is located below the slot (5) and corresponds to the slot (5).

5. The wheel set structure for luggage according to claim 1, wherein One end of the universal joint (1) is provided with a coupling (16); the coupling (16) is provided with a connecting shaft (11) that is connected to the roller (4).

6. The wheel set structure for luggage according to claim 1, wherein The roller (4) is equipped with a braking system (14); the braking system (14) is used in conjunction with the roller (4).

7. The wheel set structure for luggage according to claim 1, wherein The universal joint (1) is provided with a rotating shaft (12) connected to the bearing (2); the two ends of the rotating shaft (12) are respectively located inside the bearing (2) and the universal joint (1) and are fixed by a pin; the universal joint (1) is provided with a pin hole (13) for use with the pin.

8. The wheel set structure for luggage according to claim 7, wherein Both ends of the rotating shaft (12) are provided with non-metallic anti-corrosion gaskets (15).

9. The wheel set structure for luggage according to claim 5, wherein The roller (4) includes two hubs (41) arranged opposite each other; the surface of the hubs (41) is provided with a rubber wheel belt (42).

10. The wheel set structure for luggage according to claim 9, wherein Dustproof plates (43) are provided on the outer sides of the two oppositely arranged hubs (41); and the dustproof plates (43) are fixedly arranged at both ends of the connecting shaft (11).

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