An improved luggage wheel set

Abstract

This utility model relates to the field of luggage accessories technology, and in particular to an improved luggage wheel set, including a wheel seat and a wheel frame detachable from the wheel seat. The wheel frame includes a first wheel frame and a second wheel frame detachably disposed from the first wheel frame. An annular frame extends from the first wheel frame toward the second wheel frame. A retainer is rotatably disposed on the annular frame. A plurality of receiving grooves are spaced apart on the inner wall of the retainer. A plurality of rolling elements are rotatably disposed in each receiving groove. The outer wall of the annular frame can restrict the rolling elements to be located in the receiving grooves. The retainer is located between the first wheel frame and the second wheel frame. The beneficial effect of this utility model is that it provides an improved luggage wheel set that can improve assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of luggage accessories technology, specifically to an improved luggage wheel set. Background Technology

[0002] As a very convenient form of luggage, bags are used more and more frequently in people's lives, especially during travel and business trips. Because they can be easily dragged while walking, they can reduce the burden on travelers. And the wheels of bags are an important part of bags.

[0003] For example, the luggage wheel assembly with publication number "CN205853765U" includes a wheel frame and a wheel mounted on the wheel frame. The wheel frame includes a fixed arm. The wheel is characterized in that: the wheel includes a wheel outer ring, an annular raceway is provided on the inner ring wall of the wheel outer ring, an annular wheel body is fitted inside the wheel outer ring, a rolling element groove is provided on the outer ring of the wheel body, and a rolling element adapted to the raceway is placed in the rolling element groove; a sleeve is fitted inside the wheel body and is mounted on the fixed arm.

[0004] However, the above document contains many parts. During assembly, the snap-fit ​​cover and the snap-fit ​​cover need to be assembled into the wheel body, then the rolling elements are installed in sequence, and then the outer ring of the wheel is installed. Finally, the whole assembly is installed onto the wheel frame by installing the sleeve. Therefore, the assembly is relatively complicated and the assembly efficiency is slow. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an improved luggage wheel set that can improve assembly efficiency, addressing the shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an improved luggage wheel set, comprising a wheel seat and a wheel frame detachably connected to the wheel seat, characterized in that: the wheel frame includes a first wheel frame and a second wheel frame detachably connected to the first wheel frame, an annular frame extending from the first wheel frame toward the second wheel frame, a retainer rotatably mounted on the annular frame, a plurality of receiving grooves spaced apart on the inner wall of the retainer, a plurality of rolling elements rotatably mounted in each receiving groove, the outer wall of the annular frame restricting the rolling elements to be located within the receiving grooves, and the retainer being located between the first wheel frame and the second wheel frame.

[0007] The above technical solution is adopted: This utility model features a detachable first wheel frame and a second wheel frame, with an integrally formed annular frame on the first wheel frame. This allows for easy assembly by simply installing the retainer on the second wheel frame, then sequentially inserting the rolling elements into the receiving grooves, and finally installing the second wheel frame onto the first wheel frame. The utility model has a simple structure, is easy to assemble, and is convenient for workers. Furthermore, the outer wall of the annular frame can restrict the rolling elements from falling out of the receiving grooves, and the installation of the first wheel frame can enclose the rolling elements within the receiving grooves. Additionally, when the utility model is rolling, the rotation of the retainer guides the rotation of the rolling elements, thereby providing lubrication, reducing friction, and improving rotational smoothness.

[0008] A further feature of this invention is that: a mounting bracket extends from the middle of the second wheel frame toward the first wheel frame; a limiting step is provided on the inner wall of the annular frame that abuts against the end face of the mounting bracket; a snap-fit ​​block is provided on the outer wall of the mounting bracket; and a snap-fit ​​groove for installing the snap-fit ​​block is provided on the inner wall of the annular frame above the limiting step.

[0009] Using the above technical solution: During the assembly process, when the retainer is installed into the first wheel frame and then into the second wheel frame, the limiting step acts as a limit to prevent the mounting bracket from being inserted too deeply. At the same time, when the end face of the mounting bracket abuts against the limiting step, the snap-fit ​​block snaps into the snap-fit ​​groove, which can improve the installation firmness.

[0010] A further feature of this invention is that a positioning step is provided on the end face of the second wheel frame near the first wheel frame along its outer edge, and a positioning groove is provided on the end face of the retainer that abuts against the positioning step.

[0011] The above technical solution, by setting up positioning steps and positioning grooves, makes it easier for workers to position the equipment during assembly, facilitates installation, and reduces the occurrence of installation position deviation.

[0012] A further feature of this invention is that a rubber sleeve is fitted over the outer wall of the retainer, and the retainer has several protruding strips along its outer wall, with grooves inside the rubber sleeve that are adapted to the protruding strips.

[0013] The above technical solution increases wear resistance by using a rubber sleeve, while the protruding strips on the outer wall of the cage improve the installation firmness between the cage and the rubber sleeve.

[0014] A further feature of this invention is that the middle sections of both the first and second wheel frames are hollow.

[0015] The above technical solution achieves a lightweight effect and reduces weight by making the first and second wheel frames hollow.

[0016] A further feature of this invention is that the first wheel frame includes a first connecting arm, the upper end of which is integrally formed with a mounting portion for connection with the wheel seat, and the second wheel frame is provided with a second connecting arm corresponding to the first connecting arm.

[0017] The above technical solution facilitates the assembly of the first wheel frame and the second wheel frame by setting up the first connecting arm and the second connecting arm.

[0018] A further feature of this invention is that the first connecting arm has a first mounting hole, and the second connecting arm has a second mounting hole corresponding to the first mounting hole, and the first mounting hole and the second mounting hole are connected by fasteners.

[0019] The above technical solution enables the first wheel frame and the second wheel frame to be detachable, facilitating disassembly and assembly by staff.

[0020] A further feature of this invention is that the second connecting arm is provided with a positioning post, and the first connecting arm is provided with a positioning hole for the positioning post to be inserted.

[0021] The above technical solution facilitates positioning before assembly and improves assembly efficiency by setting positioning pins and positioning holes.

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a partial exploded view of the present invention.

[0025] Figure 3 This is an exploded view of the entire utility model.

[0026] Figure 4 This is a schematic diagram of the first wheel seat structure of this utility model.

[0027] Figure 5 This is a schematic diagram of the second wheel seat structure of this utility model.

[0028] Figure 6 This is a cross-sectional view of the present invention.

[0029] Labeling: Wheel seat 1, Wheel frame 2, First wheel frame 21, Ring frame 211, Limiting step 211a, Snap-fit ​​groove 211b, First connecting arm 212, First mounting hole 212a, Positioning hole 212b, Mounting part 213, Second wheel frame 22, Mounting bracket 221, Snap-fit ​​block 221a, Positioning step 222, Second connecting arm 223, Second mounting hole 223a, Positioning post 223b, Retainer 3, Receiving groove 31, Rolling element 32, Positioning groove 33, Protrusion 34, Rubber sleeve 4, Groove 41. Detailed Implementation

[0030] 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.

[0031] like Figure 1-6 An improved luggage wheel set is shown, including a wheel seat 1 and a wheel frame 2 detachably from the wheel seat 1. The wheel frame 2 includes a first wheel frame 21 and a second wheel frame 2222 detachably from the first wheel frame 21. An annular frame 211 extends from the first wheel frame 21 toward the second wheel frame 2222. A retainer 3 is rotatably mounted on the annular frame 211. A plurality of receiving grooves 31 are spaced apart on the inner wall of the retainer 3. A plurality of rolling elements 32 are rotatably mounted in each of the receiving grooves 31. The outer wall of the annular frame 211 can restrict the rolling elements 32 to be located in the receiving grooves 31. The retainer 3 is located between the first wheel frame 21 and the second wheel frame 2222.

[0032] like Figure 1-6 The second wheel frame 2222 shown extends from the middle of the first wheel frame 21 to a mounting frame 221. The inner wall of the annular frame 211 has a limiting step 211a that abuts against the end face of the mounting frame 221. The outer wall of the mounting frame 221 has a locking block 221a. Above the limiting step 211a, the inner wall of the annular frame 211 has a locking groove 211b for mounting the locking block 221a. A rubber sleeve 4 is fitted onto the outer wall of the retainer 3. Several protrusions 34 are provided along the outer wall of the retainer 3. The rubber sleeve 4 has grooves 41 that fit the protrusions 34. Figure 1-6 The second wheel frame 2222 shown has a positioning step 222 along its outer edge on the end face of the first wheel frame 21, and the end face of the retainer 3 has a positioning groove 33 that abuts against the positioning step 222.

[0033] like Figure 2 The first wheel frame 21 shown includes a first connecting arm 212. The upper end of the first connecting arm 212 is integrally formed with a mounting part 213 that is connected to the wheel seat 1. The second wheel frame 2222 is provided with a second connecting arm 223 corresponding to the first connecting arm 212.

[0034] like Figure 2-5 The first connecting arm 212 shown is provided with a first mounting hole 212a, and the second connecting arm 223 is provided with a second mounting hole 223a corresponding to the first mounting hole 212a. The first mounting hole 212a and the second mounting hole 223a are connected by fasteners. The second connecting arm 223 is provided with a positioning post 223b, and the first connecting arm 212 is provided with a positioning hole 212b for the positioning post 223b to be inserted.

[0035] This invention features a detachable first wheel frame 21 and a second wheel frame 2222. An annular frame 211 is integrally formed on the first wheel frame 21. During assembly, the retainer 3 is simply installed on the second wheel frame 2222, followed by sequentially inserting the rolling element 32 into the receiving groove 31. Finally, the second wheel frame 2222 is installed onto the first wheel frame 21 to complete the assembly. This invention has a simple structure, is easy to assemble, and is convenient for workers. Furthermore, the outer wall of the annular frame 211 can restrict the rolling element 32 from falling out of the receiving groove 31. The installation of the first wheel frame 21 also encloses the rolling element 32 within the receiving groove 31. Additionally, when the rolling element rolls, the rotation of the retainer 3 guides the rolling element 32, thus providing lubrication, reducing friction, and improving rotational smoothness.

Claims

1. An improved luggage wheel set, comprising a wheel seat and a wheel frame detachable from the wheel seat, characterized in that: The wheel frame includes a first wheel frame and a second wheel frame detachably mounted to the first wheel frame. The first wheel frame extends toward the second wheel frame and is provided with an annular frame. A retainer is rotatably mounted on the annular frame. A plurality of receiving grooves are spaced apart on the inner wall of the retainer. A plurality of rolling elements are rotatably mounted in each of the receiving grooves. The outer wall of the annular frame can restrict the rolling elements to be located in the receiving grooves. The retainer is located between the first wheel frame and the second wheel frame.

2. The improved luggage wheel set according to claim 1, characterized in that: The second wheel frame extends from the middle towards the first wheel frame and is provided with a mounting frame. The inner wall of the annular frame is provided with a limiting step that abuts against the end face of the mounting frame. The outer wall of the mounting frame is provided with a snap-fit ​​block. The inner wall of the annular frame is provided with a snap-fit ​​groove above the limiting step for the snap-fit ​​block to be installed.

3. An improved luggage wheel set according to claim 2, characterized in that: The second wheel frame has a positioning step along its outer edge on the end face near the first wheel frame, and the retainer has a positioning groove on its end face that abuts against the positioning step.

4. An improved luggage wheel set according to claim 3, characterized in that: The outer wall of the retainer is fitted with a rubber sleeve, and the retainer has a plurality of protrusions along its outer wall. The rubber sleeve has a groove that matches the protrusions.

5. An improved luggage wheel set according to claim 4, characterized in that: The middle part of the first wheel frame and the second wheel frame is hollow.

6. An improved luggage wheel set according to any one of claims 1-5, characterized in that: The first wheel frame includes a first connecting arm, the upper end of which is integrally formed with a mounting part that connects to the wheel seat, and the second wheel frame is provided with a second connecting arm corresponding to the first connecting arm.

7. An improved luggage wheel set according to claim 6, characterized in that: The first connecting arm is provided with a first mounting hole, and the second connecting arm is provided with a second mounting hole corresponding to the first mounting hole. The first mounting hole and the second mounting hole are connected by fasteners.

8. An improved luggage wheel set according to claim 7, characterized in that: The second connecting arm is provided with a positioning post, and the first connecting arm is provided with a positioning hole for the positioning post to be inserted.

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