Wheel structure of luggage

Abstract

A connecting seat (3) is provided with an assembling rod (5), a wheel cover (4) comprises a radial part (6) and a circumferential part (7), a mounting part (8) is arranged at the lower end of the radial part (6), and when the wheel cover (4) is sleeved in from the outer side end of the assembling rod (5) through a mounting hole (9) and mounted to the inner side end of the assembling rod (5) for polygonal sleeving, the assembling rod (5) is provided with a connecting hole (11), and the connecting hole (11) is connected with the circumferential part (7). The wheel (1) is sleeved from the outer side end of the assembly rod (5) and axially abuts against the outer side circumferential end face (12), surrounding the mounting hole (9), of the mounting part (8), the wheel (1) is provided with a bearing, a connecting hole (11) is connected with a fastener (13), and the head of the fastener (13) axially limits the inner ring of the bearing and further axially limits the wheel cover (4) through the inner ring; according to the wheel structure of the luggage, the problem is solved by adding the wheel cover, and meanwhile, the assembly is convenient, so that the cost control is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, specifically a wheel structure for luggage. Background Technology

[0002] The wheels of bags are primarily used for towing. However, as bags become more multifunctional, their usage scenarios have become more diverse. Therefore, when used outdoors, rain or other adverse weather conditions can cause water or dirt to splash from the wheels, creating inconvenience for users. Current technology, in order to control costs, has not been able to effectively solve this problem. Furthermore, the emergence of multifunctional bags, such as rideable bags, has made the design of wheel covers a technical challenge.

[0003] This application proposes a wheel structure for a bag, which solves the problem by adding a wheel cover. It is easy to assemble and thus helps to control costs. In addition, when designing a multifunctional bag, the wheel cover can be used as a pedal. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and propose a wheel structure for bags. This problem is solved by adding wheel covers, and the assembly is convenient, which helps to control costs.

[0005] Compared with the prior art, this utility model proposes a wheel structure for a bag, including a wheel and connecting seats located on both sides of the lower end of the bag, and a wheel cover. The connecting seats are provided with an assembly rod, the inner end of which is polygonal. The assembly rod extends axially outward. The wheel cover includes a radial part and a circumferential part. The lower end of the radial part is provided with a mounting part, which has a polygonal mounting hole. The upper end of the radial part is provided with a circumferential part. When the wheel cover is fitted through the mounting hole from the outer end of the assembly rod and installed to the inner end of the assembly rod for polygonal fitting, the inner circumferential end face of the mounting part surrounding the mounting hole abuts against the annular circumferential surface of the inner end for axial limiting, while the circumferential part is located in the circumference of the wheel.

[0006] The assembly rod has a connecting hole axially from the outer end inward. The wheel is fitted into the outer end of the assembly rod and axially abuts against the outer circumferential end face of the mounting hole of the mounting part. The wheel is equipped with a bearing. The axial abutment means that the inner ring of the bearing abuts against the outer circumferential end face of the mounting hole of the mounting part, while the outer ring of the bearing rotates together with the wheel.

[0007] A fastener is connected to the connecting hole. After the fastener is connected to the connecting hole, the head of the fastener axially limits the inner ring of the bearing, and further limits the wheel cover axially through the inner ring.

[0008] In some embodiments, the radial portion and the circumferential portion form an inverted L-shaped structure.

[0009] In some embodiments, the radial portion is configured as a fan shape.

[0010] In some embodiments, a reinforcing rib is provided at the inner right angle where the radial portion intersects the circumferential portion.

[0011] In some embodiments, the outer periphery of the circumferential portion is provided with a friction structure.

[0012] In some embodiments, the friction structure employs a plurality of lateral protrusions extending from the outside toward the mounting portion, the plurality of lateral protrusions being arranged sequentially along the circumference, and these lateral protrusions serving to reinforce both the radial and circumferential portions.

[0013] In some embodiments, the mounting portion is configured as a frustum on the outer side, and the outer circumferential end face of the mounting portion surrounding the mounting hole refers to the top surface of the frustum.

[0014] In some embodiments, the bearing includes a first bearing and a second bearing, with a bushing disposed between the first bearing and the second bearing. The first bearing and the second bearing are respectively installed on the inner and outer ends of the wheel. The inner rings of the first bearing and the second bearing are axially limited by the bushing. The head of the fastener axially limits the inner ring of the bearing, meaning that the head of the fastener axially limits the inner ring of the first bearing, and further limits the wheel cover axially by the bushing and the inner ring of the second bearing.

[0015] Compared with the prior art, the present invention has the following advantages after adopting the above structure: As can be seen from the technical solution disclosed herein, not only is a wheel cover added, but the assembly is also made convenient through structural design. Specifically, the connecting seat is provided with an assembly rod, the inner end of which is polygonal. The assembly rod extends axially outward, and the wheel cover and wheel are sequentially fitted onto the assembly rod. The wheel cover is circumferentially fixed by the polygonal sleeve. At the same time, a fastener is connected to the connecting hole on the assembly rod. After the fastener is connected to the connecting hole, the head of the fastener axially limits the inner ring of the bearing, and further limits the wheel cover axially through the inner ring. Therefore, the assembly is very convenient and efficient, which helps to control costs. Attached Figure Description

[0016] Figure 1 This is a half-section three-dimensional schematic diagram of the wheel structure of a bag.

[0017] Figure 2 This is a three-dimensional schematic diagram of a bag equipped with the wheel structure of the bag disclosed herein.

[0018] Figure 3 This is a three-dimensional schematic diagram of an assembly rod.

[0019] Figure 4 This is a three-dimensional schematic diagram of an assembly rod fitted with a wheel cover.

[0020] Figure 5 This is a three-dimensional schematic diagram of a second bearing and bushing.

[0021] Figure 6 for Figure 5 A three-dimensional schematic diagram of the first bearing is then drawn.

[0022] Figure 7 This is a three-dimensional schematic diagram showing the inner view of the wheel arch.

[0023] Figure 8 This is a three-dimensional schematic diagram from the outside of the wheel arch.

[0024] Explanation of reference numerals in the attached drawings: 1-wheel, 2-bag, 3-connecting seat, 4-wheel cover, 5-assembly rod, 6-radial part, 7-circumferential part, 8-mounting part, 9-mounting hole, 10-inner circumferential end face, 11-connecting hole, 12-outer circumferential end face, 13-fastener, 14-reinforcing rib, 15-lateral protrusion, 16-first bearing, 17-second bearing, 18-shoulder sleeve, 19-inner end. Detailed Implementation

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The embodiments described below are merely examples, and other obvious variations will arise for those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0026] Those skilled in the art should understand that, in the disclosure of this utility model, 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 orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0027] like Figures 1 to 8The diagram shows a wheel structure for a bag, including a wheel 1 and connecting seats 3 located on both sides of the lower end of the bag 2. It also includes a wheel cover 4. The connecting seat 3 is provided with an assembly rod 5. The inner end 19 of the assembly rod 5 is polygonal and extends axially outward. The wheel cover 4 includes a radial portion 6 and a circumferential portion 7. The lower end of the radial portion 6 is provided with a mounting portion 8, which is provided with a polygonal mounting hole 9. The upper end of the radial portion 6 is provided with the circumferential portion 7. When the wheel cover 4 is fitted into the outer end of the assembly rod 5 through the mounting hole 9 and installed to the inner end of the assembly rod 5 for polygonal fitting, the inner circumferential end face 10 of the mounting portion 8 surrounding the mounting hole 9 abuts against the annular circumferential surface of the inner end for axial limiting, while the circumferential portion 7 is located circumferentially around the wheel 1. The polygon is, for example, a regular hexagon, i.e., the inner end 19 is a regular hexagonal end, and at least the portion of the mounting hole 9 located on one side of the inner end 19 is a regular hexagonal hole. The regular hexagonal end and the regular hexagonal hole fit together to form reliable support and circumferential restraint.

[0028] The connecting seat 3 has two symmetrical mounting rods 5 on the left and right sides, and each mounting rod 5 is equipped with a wheel 1.

[0029] For ease of assembly, such as Figure 1 As shown, the assembly rod 5 has a connecting hole 11 axially extending inward from its outer end. The wheel 1 is fitted onto the outer end of the assembly rod 5 and axially abuts against the outer circumferential end face 12 of the mounting hole 9 of the mounting part 8. The wheel 1 is equipped with a bearing. The axial abutment means that the inner ring of the bearing abuts against the outer circumferential end face 12 of the mounting hole 9 of the mounting part 8, while the outer ring of the bearing rotates together with the wheel 1. A fastener 13 is connected to the connecting hole 11. After the fastener 13 is connected to the connecting hole 11, the head of the fastener 13 axially limits the inner ring of the bearing and further limits the wheel cover 4 axially through the inner ring. The fastener 13 is, for example, a self-tapping screw. The connection between the self-tapping screw and the mounting hole 9 axially limits the installation of the wheel 1 and the wheel cover 4 without affecting the smooth rotation of the wheel 1. At the same time, the relative positions of the wheel 1 and the wheel cover 4 are simultaneously set after the axial limiting installation.

[0030] In this example, the radial portion 6 and the circumferential portion 7 form an inverted L-shaped structure, and the circumferential portion 7 is located on the upper side of the wheel 1.

[0031] like Figure 7 , 8 As shown, the radial portion 6 is configured as a fan shape.

[0032] Furthermore, to enhance strength, a reinforcing rib 14 is provided at the inner right angle where the radial portion 6 intersects the circumferential portion 7.

[0033] The wheel cover 4 can be designed as a pedal, which can then be used in a rideable bag. To achieve the function of a pedal, it is preferable to have a friction structure on the outer periphery of the circumferential portion 7.

[0034] like Figure 7 As shown, the friction structure employs multiple transverse protrusions 15 extending from the outside towards the mounting portion 8. These transverse protrusions 15 are arranged sequentially along the circumference, and they simultaneously reinforce both the radial portion 6 and the circumferential portion 7. In this way, not only is the friction structure configured, but both the radial portion 6 and the circumferential portion 7 are simultaneously reinforced, achieving multiple benefits in one go.

[0035] In some embodiments, such as Figure 4 , 8 As shown, the mounting part 8 is configured as a frustum on the outer side, and the outer circumferential end face 12 of the mounting part 8 surrounding the mounting hole 9 refers to the top surface of the frustum. This helps to reduce the possibility of the outer circumferential end face 12 rubbing against the outer ring of the bearing or the wheel 1.

[0036] In some embodiments, such as Figure 1 , 6 As shown, the bearing includes a first bearing 16 and a second bearing 17, with a bushing 18 positioned between them. The first bearing 16 and the second bearing 17 are respectively mounted on the inner and outer ends of the wheel 1. The inner rings of the first bearing 16 and the second bearing 17 are axially limited by the bushing 18. The head of the fastener 13 axially limits the inner ring of the bearing, specifically the inner ring of the first bearing 16, and further limits the wheel cover 4 axially by the bushing 18 and the inner ring of the second bearing 17. This design allows the wheel 1 to be made wider, providing stronger support, while also facilitating assembly and thus helping to control production costs.

[0037] The above description is merely an illustrative embodiment of this utility model. Therefore, all equivalent changes or modifications made to the structure, features, and principles described in the scope of protection of this utility model are included within the scope of protection of this utility model.

Claims

1. A wheel structure for a bag, comprising a wheel (1) and connecting seats (3) disposed on both sides of the lower end of the bag (2), characterized in that, It also includes a wheel cover (4), and the connecting seat (3) is provided with an assembly rod (5). The inner end (19) of the assembly rod (5) is polygonal. The assembly rod (5) extends axially outward. The wheel cover (4) includes a radial part (6) and a circumferential part (7). The lower end of the radial part (6) is provided with a mounting part (8). The mounting part (8) is provided with a polygonal mounting hole (9). The upper end of the radial part (6) is provided with a circumferential part (7). When the wheel cover (4) is inserted into the outer end of the assembly rod (5) through the mounting hole (9) and installed to the inner end of the assembly rod (5) for polygonal fitting, the inner circumferential end face (10) of the mounting part (8) surrounding the mounting hole (9) abuts against the annular circumferential surface of the inner end for axial limiting, while the circumferential part (7) is located in the circumference of the wheel (1). The assembly rod (5) has a connecting hole (11) axially from the outer end inward. The wheel (1) is inserted into the outer end of the assembly rod (5) and axially abuts against the outer circumferential end face (12) of the mounting hole (9) of the mounting part (8). The wheel (1) is provided with a bearing. The axial abutment means that the inner ring of the bearing abuts against the outer circumferential end face (12) of the mounting hole (9) of the mounting part (8), while the outer ring of the bearing rotates together with the wheel (1). A fastener (13) is connected to the connecting hole (11). After the fastener (13) is connected to the connecting hole (11), the head of the fastener (13) axially limits the inner ring of the bearing and further limits the wheel cover (4) axially through the inner ring.

2. The wheel structure of the bag as described in claim 1, characterized in that, The radial portion (6) and the circumferential portion (7) form an inverted L-shaped structure.

3. The wheel structure of the bag as described in claim 1, characterized in that, The radial part (6) is set in a fan shape.

4. The wheel structure of the bag as described in claim 3, characterized in that, A reinforcing rib (14) is provided at the inner right angle where the radial part (6) intersects with the circumferential part (7).

5. The wheel structure of the bag as described in claim 1, 2, 3, or 4, characterized in that, The outer periphery of the circumferential part (7) is provided with a friction structure.

6. The wheel structure of the bag as described in claim 5, characterized in that, The friction structure employs multiple transverse protrusions (15) extending from the outside towards the mounting portion (8). These transverse protrusions (15) are arranged sequentially along the circumference and serve to reinforce both the radial portion (6) and the circumferential portion (7).

7. The wheel structure of the bag as described in claim 1, characterized in that, The mounting part (8) is configured as a frustum on the outside, and the outer circumferential end face (12) of the mounting part (8) surrounding the mounting hole (9) refers to the top surface of the frustum.

8. The wheel structure of the bag as described in claim 1, characterized in that, The bearing includes a first bearing (16) and a second bearing (17). A bushing (18) is provided between the first bearing (16) and the second bearing (17). The first bearing (16) and the second bearing (17) are respectively installed on the inner and outer ends of the wheel (1). The inner ring of the first bearing (16) and the inner ring of the second bearing (17) are axially limited by the bushing (18). The head of the fastener (13) axially limits the inner ring of the bearing. The head of the fastener (13) axially limits the inner ring of the first bearing (16), and the wheel cover (4) is further axially limited by the bushing (18) and the inner ring of the second bearing (17).

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