Luggage roller assembly capable of rotating smoothly

Abstract

The utility model relates to the technical field of luggage wheels, in particular to a luggage roller assembly capable of rotating smoothly, which comprises a mounting seat and a wheel set hinged with the mounting seat through a pin shaft, the wheel set comprises a first roller and a second roller, and the first roller and the second roller are respectively mounted at two ends of the pin shaft. Mounting cavities are formed in the ends, away from the mounting base, of the first roller and the second roller, the inner walls of the mounting cavities are coated with a layer of lubricating oil, gears are rotationally arranged in the mounting cavities, gear holes allowing the pin shafts to penetrate through and to be in linkage with the gears are formed in the gears, and through holes allowing the pin shafts to penetrate through are formed in the bottoms of the mounting cavities; the luggage roller assembly has the advantages of being simple in structure and smooth in rotation.

Description

Technical Field

[0001] This utility model relates to the field of luggage wheel technology, specifically to a luggage roller assembly that rotates smoothly. Background Technology

[0002] Luggage wheels are special wheels that are installed on luggage so that the luggage can be placed on the ground and slid.

[0003] Traditional luggage rollers include a bracket and rollers mounted on the bracket. The rollers and bracket are hinged together by a pin. The bracket is connected to the luggage via a tray. A luggage roller assembly with publication number "CN204845382U" includes a bracket and rollers hinged to the bracket by a pin. The pin includes a mounting head and a columnar pin body connected to the mounting head. The other end of the pin body, relative to the end connected to the mounting head, is a riveting end. A washer is fitted at this riveting end. A rivet with a diameter smaller than the pin body is also present at the riveting end of the pin body. The connecting post is connected to the pin body via a stepped surface. A gasket is installed on this stepped surface, and the gasket is fixed to the stepped surface by riveting the connecting post. This makes it easy to control during processing. After placing the gasket on the stepped surface, it is convenient to rivet the connecting post. Moreover, regardless of the riveting force, the gasket and the roller will not be too tightly fitted or too far apart. This not only reduces the scrap rate during processing, but also prevents the gasket from rotating with the roller during operation, thus preventing friction and noise between the gasket and the roller.

[0004] However, in the aforementioned document, the roller rotates through a pin and a hole on the roller. In actual use, it was found that the lack of sufficient lubrication between the pin and the hole may lead to increased friction and increased rotational resistance. Furthermore, even if lubricating oil is applied inside the hole, the existing structure will cause the lubricating oil to flow out of the hole, reducing the effectiveness of use. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a bag roller assembly with a simple structure and smooth rotation, which addresses the shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a smoothly rotating bag roller assembly, comprising a mounting base and a wheel set hinged to the mounting base via a pin, the wheel set comprising a first roller and a second roller, which are respectively mounted on both ends of the pin, characterized in that: a mounting cavity is provided on the end of the first roller and the second roller away from the mounting base, a layer of lubricating oil is coated on the inner wall of the mounting cavity, a gear is rotatably provided in the mounting cavity, the gear is provided with a gear hole for the pin to pass through and to move in conjunction with it, and a through hole for the pin to pass through is opened at the bottom of the mounting cavity.

[0007] The above technical solution addresses the issue that, in the prior art, insufficient lubrication between the pin and the shaft hole in the roller assembly can lead to increased friction and rotational resistance. In this invention, a layer of lubricating oil is applied to the mounting cavity, and a gear is installed within the mounting cavity. The pin passes through the gear and is installed with the first and second rollers. Because the gear can effectively transmit power and torque, the rotation of the wheels is smoother, improving the overall pushing or pulling efficiency.

[0008] A further feature of this invention is that the pin includes a mounting head, one end of which is connected to a column. The column can pass through a gear hole and a through hole. Both the first roller and the second roller have a first step at the opening end of the mounting cavity, and the mounting head can be located on one of the first steps.

[0009] The above technical solution is adopted: during the assembly process, the mounting head is located on the first step, and the end face of the mounting head is flush with the end face of the wheel, which improves the aesthetics. At the same time, the mounting head can cover the gear, so that the gear is sealed in the mounting cavity, and also ensures that the lubricating oil applied to the inner wall of the mounting cavity will not leak out, thus ensuring the performance.

[0010] A further feature of this invention is that a riveting post is provided at the end of the column away from the mounting head. The diameter of the riveting post is smaller than the diameter of the column, and the riveting post and the column are connected by a second step. A gasket is fitted at the second step. When the pin is assembled onto the wheel assembly, the second step and the first step near the riveting post are on the same horizontal plane, causing the gasket to be located on the first step. By riveting the riveting post, the gasket can be fixed at the first step and the second step.

[0011] The above technical solution involves setting the riveting end of the pin to a riveting post with a diameter smaller than that of the column, and connecting the riveting post and the column via a second step. After assembly, the second step and the first step are on the same horizontal plane. With this setup, the distance between the first and second steps and the column and the mounting head is the shaft distance of the pin, which is easy to control during processing. Placing the shim at the second step facilitates riveting the riveting post, and regardless of the riveting force, it prevents the shim from being too close to the roller or too far apart. This not only reduces the scrap rate during processing, but also prevents the shim from rotating with the roller during operation, thus preventing friction and noise between the shim and the roller. Furthermore, the shim located on the first step can enclose the gear in the mounting cavity, preventing the lubricating oil on the inner wall of the mounting cavity from leaking out and ensuring rotational performance. The riveting operation does not have many requirements, and even if the riveting force is high, damage to the riveting post will not affect the normal use of the roller.

[0012] A further feature of this invention is that the riveting post is a hollow column.

[0013] The above technical solution is adopted: by making the riveting post hollow, the riveting is more convenient and less labor-intensive when performing manual operation.

[0014] A further feature of this invention is that the diameter of the mounting cavity is greater than the diameter of the through hole, the diameter of the mounting head is greater than the diameter of the mounting cavity, and the shape of the mounting head is adapted to the first step.

[0015] The above technical solution is adopted: by setting the diameter of the mounting cavity to be larger than the diameter of the through hole, and the diameter of the mounting head to be larger than the diameter of the column and the mounting cavity, the gear can be installed in the mounting cavity without falling off. At the same time, the shape of the mounting head is adapted to the first step, ensuring that the mounting head can be installed on the first step and improving the aesthetics.

[0016] A further feature of this invention is that the mounting base is provided with a mounting hole at the wheel assembly mounting location for the pin shaft to pass through.

[0017] The above technical solution ensures effective installation and facilitates assembly by the installation holes.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is an exploded view of the entire utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the first roller or the second roller of this utility model.

[0022] Figure 4 This is an exploded view of the pin and mounting base of this utility model.

[0023] Labeling: Mounting base 1, Mounting hole 11, Pin 2, Mounting head 21, Column 22, Riveting post 23, Second step 24, Washer 25, Through hole 251, Wheel set 3, First roller 31, Second roller 32, Mounting cavity 33, Gear 331, Gear hole 331a, Through hole 332, First step 34. Detailed Implementation

[0024] In the accompanying drawings of this specific embodiment and the disclosed embodiments, only the structures involved in the disclosed embodiments are involved. Other structures can be referred to with ordinary design. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of this utility model, they are protected by patent law.

[0025] like Figure 1-4 The illustration shows a smoothly rotating bag roller assembly, including a mounting base 1 and a wheel set 3 hinged to the mounting base 1 via a pin 2. The mounting base 1 has a mounting hole 11 for the pin 2 to pass through at the mounting point of the wheel set 3. The wheel set 3 includes a first roller 31 and a second roller 32, which are respectively mounted at both ends of the pin 2. The first roller 31 and the second roller 32 have a mounting cavity 33 at the end away from the mounting base 1. The inner wall of the mounting cavity 33 is coated with a layer of lubricating oil. A gear 331 is rotatably mounted in the mounting cavity 33. The gear 331 has a gear hole 331 for the pin 2 to pass through and to move in conjunction with it. The bottom of the mounting cavity 33 has a through hole 332 for the pin 2 to pass through. The diameter of the mounting cavity 33 is larger than the diameter of the through hole 332, and the diameter of the mounting head 21 is larger than the diameter of the mounting cavity 33. The shape of the mounting head 21 is adapted to the first step 34.

[0026] like Figure 2 , 4 The pin 2 shown includes a mounting head 21, one end of which is connected to a column 22. The column 22 can pass through the gear 331 hole and the through hole 332. Both the first roller 31 and the second roller 32 have a first step 34 at the opening end of the mounting cavity 33, and the mounting head 21 can be positioned on one of the first steps 34. Figure 4 The end of the column 22 away from the mounting head 21 is provided with a riveting post 23. The riveting post 23 is a hollow column 22. The diameter of the riveting post 23 is smaller than the diameter of the column 22. The riveting post 23 is connected to the column 22 through a second step 24. A gasket 25 is fitted at the second step 24. The gasket 25 has a through hole 251 for the riveting post 23 to pass through. When the pin 2 is assembled onto the wheel set 3, the second step 24 and the first step 34 near the riveting post 23 are on the same horizontal plane, causing the gasket 25 to be located on the first step 34. By riveting the riveting post 23, the gasket 25 can be fixed at the first step 34 and the second step 24.

[0027] In use, this invention addresses the issue of increased friction and rotational resistance between the pin 2 and the shaft hole in the roller assembly (3 parts) due to insufficient lubrication, as seen in existing technologies. This invention addresses this by applying a layer of lubricating oil to the mounting cavity 33 and installing a gear 331 within it. The pin 2 passes through the gear 331 and is then installed with the first roller 31 and the second roller 32. The gear 331 effectively transmits power and torque, resulting in smoother wheel rotation and improved overall pushing and pulling efficiency. Furthermore, by setting the riveting end of the pin 2 as a riveting post 23 with a diameter smaller than that of the column 22, and connecting the riveting post 23 to the column 22 via a second step 24, and by ensuring that the second step... With step 24 and the first step 34 on the same horizontal plane, the distance between the first and second steps 24 and the column 22 and the mounting head 21 is the wheelbase of the pin 2, which is easy to control during processing. After placing the shim 25 at the second step 24, it is convenient to rivet the rivet column 23. Moreover, regardless of the rivet force, the shim 25 will not be too close to the roller or too far apart. This not only reduces the scrap rate during processing, but also prevents the shim 25 from rotating with the roller during operation, thus preventing friction and noise between the shim 25 and the roller. There are no excessive requirements for the riveting operation. Even if the rivet force is large, damage to the rivet column 23 will not affect the normal use of the roller.

Claims

1. A smoothly rotating luggage roller assembly, comprising a mounting base and a wheel assembly hinged to the mounting base via a pin, the wheel assembly comprising a first roller and a second roller, which are respectively mounted at both ends of the pin, characterized in that: The first roller and the second roller have a mounting cavity at the end away from the mounting base. The inner wall of the mounting cavity is coated with a layer of lubricating oil. A gear is rotatably installed in the mounting cavity. The gear has a gear hole through which a pin shaft passes and is linked with it. A through hole for the pin shaft to pass through is opened at the bottom of the mounting cavity.

2. The bag roller assembly with smooth rotation according to claim 1, characterized in that: The pin includes a mounting head, one end of which is connected to a column. The column can pass through a gear hole and a through hole. Both the first roller and the second roller have a first step at the opening end of the mounting cavity, and the mounting head can be located on one of the first steps.

3. The bag roller assembly with smooth rotation according to claim 2, characterized in that: A riveting post is provided at the end of the column away from the mounting head. The diameter of the riveting post is smaller than the diameter of the column, and the riveting post and the column are connected by a second step. A gasket is fitted at the second step. When the pin is assembled onto the wheel assembly, the second step and the first step near the riveting post are on the same horizontal plane, causing the gasket to be located on the first step. By riveting the riveting post, the gasket can be fixed at the first step and the second step.

4. The bag roller assembly with smooth rotation according to claim 3, characterized in that: The riveted post is a hollow column.

5. The bag roller assembly with smooth rotation according to claim 4, characterized in that: The diameter of the mounting cavity is larger than the diameter of the through hole, the diameter of the mounting head is larger than the diameter of the mounting cavity, and the shape of the mounting head is adapted to the first step.

6. A smoothly rotating bag and luggage roller assembly according to any one of claims 1-5, characterized in that: The mounting base is located at the wheel assembly mounting point and has a mounting hole through which the pin shaft passes.

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