A luggage roller

Abstract

The utility model discloses a kind of luggage rollers, including a pair of wheel main body, wheel seat, wheel shaft, wheel main body includes solid wheel core, rubber layer and stopper piece being installed on wheel core;The wheel shaft groove of recessed is provided on the side away from wheel core of stopper piece;The first through-hole is provided in the middle part of the groove bottom of wheel shaft groove;Wheel core is formed with the outer wheel part of the outer contour of arc shape;The center of outer wheel part forms the wheel core part of recessed;Wheel core part is cylinder structure, and the middle part is equipped with the second through-hole of penetration;Wheel seat is formed with the installation site of penetration, and wheel seat is formed with the connecting column of extending to installation site;The end of connecting column forms installation part in the middle part of installation site;The third through-hole is equipped with penetration in installation part middle. The utility model is simple in structure, reasonable in design, with high strength, stress uniform, shock absorption and dustproof and multiple functions such as anti-winding, with higher practical value and popularization potential.

Description

Technical Field

[0001] This utility model relates to the field of roller technology, specifically to rollers used in suitcases. Background Technology

[0002] Rollers are an essential structural component of suitcases, not only bearing the weight of the suitcase but also requiring rolling motion. Therefore, rollers are also the weakest link in a suitcase. Currently, while pursuing high strength, the structure of rollers on the market is becoming increasingly complex. For example, a Chinese utility model patent with publication number CN208180673U discloses a high-strength caster, including a die-cast caster body. The caster body is a one-piece structure comprising an inner ring, a middle ring, and an outer ring. The inner ring has a through-hole shaft, and its sidewall has a protruding positioning block with a positioning hole. The middle ring is located between the inner and outer rings, with a curved transition between the two surfaces. A gap is reserved between the outer and middle rings, containing several reinforcing blocks arranged at predetermined intervals around the middle ring. The front and rear sides of the reinforcing blocks are respectively attached to the outer sidewall of the middle ring and the inner sidewall of the outer ring. The outer sidewall of the outer ring has a groove along its circumference. While the above design enhances the performance of the rollers to some extent, it also increases the number of assembly steps, makes maintenance more difficult, and may even affect the overall stability due to mismatch of a small component. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, this utility model aims to provide a luggage wheel that is simple in structure, reasonable in design, high in strength, uniform in force distribution, dustproof and anti-tangling, and has shock absorption function.

[0004] A suitcase roller includes a pair of wheel bodies, a wheel seat, and a wheel axle. The wheel body includes a solid wheel core, a rubber layer fitted on the wheel core, and a stop block.

[0005] The stop block has a concave axle groove on the side away from the wheel core; the bottom of the axle groove has a through first hole; the wheel core has an outer wheel portion with an arc-shaped outer contour; the center of the outer wheel portion has a concave wheel core portion; the wheel core portion has a columnar structure and a through second hole in the middle.

[0006] The wheel seat has a through mounting position, and the wheel seat has a connecting post extending to the mounting position; the end of the connecting post forms a mounting part in the middle of the mounting position; the mounting part has a through third through hole in the middle.

[0007] Preferably, the stop block has a first protruding boss on the side opposite to the wheel axle groove; the first through hole passes through the first boss; and the first boss extends into the second through hole.

[0008] Preferably, the mounting portion has a second boss formed on the side near the wheel center portion; the third through hole penetrates the second boss, and the second boss extends into the second through hole.

[0009] Preferably, a bearing matching the axle is embedded in the second through hole; the first boss abuts against one side of the bearing in the second through hole; and the second boss abuts against the other side of the bearing in the second through hole.

[0010] Preferably, a pair of uprights are provided on the outer side of the mounting part and the inner side of the mounting position; a shock-absorbing spring is fitted between the uprights.

[0011] Preferably, the axle has a threaded hole at its end; after passing through the wheel body and wheel seat, the axle is locked to the threaded hole by a locking member.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This embodiment uses a solid wheel core with continuous material throughout, which can more evenly distribute stress and is less prone to deformation under impact and heavy pressure. The arc-shaped outer wheel and double wheel design make the roller more flexible when turning, reduce turning resistance, and disperse impact force, resulting in even force distribution. Furthermore, the stop block design can prevent dust or other impurities from entering the wheel body and prevent hair or rope from getting tangled in the wheel body, extending the service life of the roller. The mounting part of this embodiment can move within the mounting position range, and together with the shock-absorbing spring, it has a strong shock absorption effect. Attached Figure Description

[0014] Figure 1 This is an exploded view diagram of this embodiment;

[0015] Figure 2 This is a perspective view of this embodiment;

[0016] Figure 3 This is a front view of this embodiment;

[0017] Figure 4 for Figure 3 Sectional view along axis AA;

[0018] Figure 5 This is a front view of the wheel seat in this embodiment. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "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, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] This embodiment discloses a suitcase wheel, including a pair of wheel bodies, a wheel seat 5, and a wheel axle 1. The wheel seat 5 is used to mount the wheel on the bottom of the suitcase, and the wheel axle 1 is used to rotatably connect the wheel body and the wheel seat 5. The wheel body includes a solid wheel core 4, a rubber layer 3 fitted on the wheel core, and a stop block 2; the stop block 2 has a concave axle groove 21 on the side away from the wheel core 4; the bottom of the axle groove 21 has a through hole 22 for the axle to pass through; the solid wheel core 4 forms an outer wheel portion 41 with an arc-shaped outer contour; the center of the outer wheel portion 41 forms a concave wheel core portion 42; the wheel core portion 42 has a columnar structure and a through hole 43 in the middle; the wheel seat 5 has a through mounting position 52, and the wheel seat 5 has a connecting post 51 extending to the mounting position 52; the end of the connecting post 51 forms a mounting part 53 in the middle of the mounting position 52; the mounting part 53 has a through hole 55 in the middle.

[0023] Furthermore, the axle 1 has a threaded hole 10 at its end for threaded connection with the locking member 6. The head of the axle 1 is accommodated in the axle groove 21, and the end passes through the first through hole 22, the second through hole 43, and the third through hole 55 before being screwed and locked with the locking member 6. The locking member 6 is preferably a screw.

[0024] This embodiment uses a solid wheel core 4, with continuous material throughout, which can more evenly distribute stress and is less prone to deformation when subjected to impact and heavy pressure. The arc-shaped outer wheel part 41 and the double wheel design make the roller more flexible when turning, reduce turning resistance, and disperse impact force, resulting in uniform overall force distribution. Furthermore, the design of the stop block 2 can prevent dust or other impurities from entering the wheel body, prevent hair or rope from getting tangled in the wheel body, and extend the service life of the roller. The mounting part 53 in this embodiment can move within the mounting position 52, providing a certain degree of shock absorption.

[0025] In this embodiment, the stop block 2 has a first protruding boss 23 on the side opposite to the wheel axle groove 21; the first through hole 22 passes through the first boss 23, and the first boss 23 extends into the second through hole 43. The mounting part 53 has a second boss 54 on the side near the wheel center part 42; the third through hole 55 passes through the second boss 54, and the second boss 54 extends into the second through hole 43. The boss design can enhance the rigidity of the structure and maintain the distance between the stop block 2, the wheel center 4, and the wheel seat 5, avoiding interference between the structures when the wheel body rotates. It can also further optimize the dustproof and anti-winding functions.

[0026] Furthermore, this embodiment also includes a bearing 7, in which the bearing 7 matching the axle 1 is embedded in the second through hole 43; the first boss 23 abuts against one side of the bearing 7 in the second through hole 43; and the second boss 54 abuts against the other side of the bearing 7 in the second through hole 43, making the overall structure more compact.

[0027] Furthermore, to optimize the shock absorption effect of the mounting part 53 in this embodiment, a pair of uprights 56 are provided opposite to the inner side of the mounting position 52 on the outer side of the mounting part 53; a shock-absorbing spring (not shown in the figure) is fitted between the uprights 56. The shock-absorbing spring distributes more impact force, improving the stability of the roller's movement. For those skilled in the art, various other corresponding changes and modifications can be made based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A suitcase wheel, comprising a pair of wheel bodies, a wheel seat, and a wheel axle, characterized in that, The wheel body includes a solid wheel core, a rubber layer fitted on the wheel core, and a stop block; The stop block has a recessed axle groove on the side away from the wheel core; the bottom of the axle groove has a through hole in the middle. The wheel core has an outer wheel portion with an arc-shaped outer contour; the center of the outer wheel portion forms a concave wheel core portion; the wheel core portion has a cylindrical structure and a through second hole in the middle; The wheel seat has a through mounting position, and the wheel seat has a connecting post extending to the mounting position; the end of the connecting post forms a mounting part in the middle of the mounting position; the mounting part has a through third through hole in the middle.

2. A suitcase wheel according to claim 1, characterized in that, The stop block has a first protruding boss on the side opposite to the wheel axle groove; the first through hole passes through the first boss; the first boss extends into the second through hole.

3. A suitcase wheel according to claim 2, characterized in that, The mounting portion has a second boss formed on the side near the wheel center portion; the third through hole penetrates the second boss; the second boss extends into the second through hole.

4. A suitcase wheel according to claim 3, characterized in that, The second through hole contains a bearing that matches the axle; the first boss abuts against one side of the bearing within the second through hole; the second boss abuts against the other side of the bearing within the second through hole.

5. A suitcase wheel according to claim 1, characterized in that, A pair of uprights are provided on the outer side of the mounting part and the inner side of the mounting position; a shock-absorbing spring is fitted between the uprights.

6. A suitcase wheel according to claim 1, characterized in that, The axle has a threaded hole at its end; after passing through the wheel body and wheel seat, the axle is locked to the threaded hole by a locking member.

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