Self-balancing omni-wheel

Abstract

The utility model relates to the field of luggage accessory discloses a self -balancing universal wheel, including wheel support, the left and right sides of wheel support are equipped with the limit hole respectively, the left and right sides of wheel support rotatably provided with the wheel hub, the limit hole is inserted with transmission shaft, the limit hole is oval hole, is used for providing the swing space of up and down direction for transmission shaft, both ends of transmission shaft all run through wheel hub, both ends of transmission shaft are fixed with fixed ring respectively, the inside of wheel support is equipped with the adaptive hole, the adaptive hole is inserted with the limit rod, the outer wall of limit rod is equipped with the mounting hole, transmission shaft and mounting hole rotatable sleeve set up, in the utility model, through the cooperation of limit hole and transmission shaft, make wheel hub have swing space in up and down direction, cooperate the angle limiting rotation structure between limit rod and adaptive hole, make the wheel group can be according to the ground fluctuation automatic adjustment angle, realize stronger adaptive capacity.

Description

Technical Field

[0001] This utility model relates to the technical field of luggage accessories, specifically a self-balancing universal wheel. Background Technology

[0002] As an essential tool for daily travel, the convenience and comfort of suitcases directly impact user experience. Spinner wheels, a key component of suitcases, perform multiple functions including load-bearing, steering, and pushing, and are widely used in various types of rolling suitcases, carry-on bags, and travel cases. With users' increasing demands for suitcase flexibility and stability, the structural design and performance optimization of spinner wheels have become a key focus in the suitcase manufacturing industry.

[0003] Existing swivel wheels typically consist of a wheel bracket, a wheel hub, an axle, and a rotating structure connecting to the suitcase body. The axle passes through the wheel hub and is supported by the wheel bracket, allowing the wheel hub to roll freely. The wheel bracket is connected to the bottom of the suitcase body via a rotating axle, enabling the wheel assembly to rotate in all directions. Furthermore, to prevent the axle from coming off or the rotating axle from loosening, some structural designs employ methods such as adhesive bonding, clamping, or pin fixing to enhance the stability of the connections between components.

[0004] However, existing technologies still have the following drawbacks: the wheel axle and wheel bracket mostly adopt a circular hole mating structure, which lacks the ability to swing and adjust in the vertical direction. This makes it impossible for the wheel set to adapt to the undulations of the ground during driving, resulting in concentrated force and further causing problems such as shaking and jamming. Utility Model Content

[0005] The purpose of this invention is to provide a self-balancing omnidirectional wheel to solve the problem that the wheel axle and wheel bracket mostly adopt a circular hole mating structure, which lacks the ability to swing and adjust in the vertical direction. This makes the wheel set unable to adapt to the undulations of the ground during driving, resulting in concentrated force and further causing problems such as shaking and jamming.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a self-balancing universal wheel, including a wheel bracket, with limiting holes on the left and right sides of the wheel bracket, and wheel hubs rotatably disposed on the left and right sides of the wheel bracket. A drive shaft is inserted into the limiting hole, and the limiting hole is an elliptical hole used to provide vertical swing space for the drive shaft. Both ends of the drive shaft pass through the wheel hub, and fixing rings are fixed to both ends of the drive shaft. An adapter hole is opened in the wheel bracket, and a limiting rod is inserted into the adapter hole. A mounting hole is opened on the outer wall of the limiting rod, and the drive shaft is rotatably sleeved with the mounting hole.

[0007] Preferably, a limiting opening is provided in the adapter hole, and the outer wall of the limiting rod has a limiting platform. The limiting platform is located in the corresponding limiting opening and a gap is left between it and the limiting opening, so that the limiting rod can rotate around the axis within the adapter hole at a limited angle.

[0008] Preferably, the wheel bracket has arc surfaces on both the left and right sides, and the wheel hub has a boss on the side near the wheel bracket, with the end face of the boss in contact with the arc surface.

[0009] Preferably, the wheel bracket has a rotating hole, in which a rotating shaft is rotatably disposed, and a wheel frame is connected to the top of the rotating shaft. The wheel frame is used to connect to a suitcase.

[0010] Preferably, a pin hole is provided through one side of the wheel bracket, the pin hole is connected to the rotating hole, and a metal pin is provided in the pin hole.

[0011] Preferably, a circular step is fixed at the bottom end of the rotating shaft. The axial section of the circular step is inverted T-shaped, and a limiting gap is formed between it and the bottom end of the rotating shaft. The metal pin is located in the limiting gap and is arranged perpendicular to the axis of the rotating shaft to axially limit the rotating shaft and prevent it from coming out of the rotating hole.

[0012] Compared with existing technologies, a self-balancing omnidirectional wheel that adopts the above technical solution has the following beneficial effects:

[0013] I. In this utility model, the cooperation between the limiting hole and the drive shaft allows the wheel hub to have swing space in the vertical direction. Combined with the angle-limiting rotation structure between the limiting rod and the adapter hole, the wheel assembly can automatically adjust its angle according to ground undulations, achieving stronger self-adaptive capabilities. This not only effectively alleviates the problem of concentrated force on uneven surfaces in traditional omnidirectional wheels, reducing swaying and jamming, but also significantly improves the stability and smooth pushing experience of suitcases on complex road conditions.

[0014] II. In this utility model, a rotating shaft is installed inside the rotating hole, and a circular step with an inverted T-shaped cross-section is used in conjunction with a metal pin to achieve a combination of anti-detachment limiting of the rotating shaft and free rotation of the omnidirectional wheel. This design not only ensures a stable connection between the wheel frame and the suitcase, preventing the rotating shaft from loosening due to impact or shaking during use, but also gives the omnidirectional wheel flexible multi-directional adjustment capabilities, greatly improving the flexibility and safety of push-pull operations. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment.

[0016] Figure 2 This is a front view schematic diagram of an embodiment.

[0017] Figure 3 This is a schematic diagram showing the overall breakdown of an embodiment.

[0018] Figure 4 This is a schematic cross-sectional view of the embodiment.

[0019] Figure 5 This is a schematic diagram of the wheel frame assembly for an embodiment.

[0020] In the diagram: 1. Wheel bracket; 101. Limiting hole; 102. Adaptor hole; 103. Limiting opening; 104. Arc surface; 105. Rotating hole; 106. Pin hole; 2. Wheel hub; 201. Drive shaft; 202. Fixing ring; 203. Boss; 3. Limiting rod; 301. Mounting hole; 302. Limiting platform; 5. Rotating shaft; 501. Wheel frame; 502. Circular step; 6. Metal pin. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, a self-balancing omnidirectional wheel includes a wheel bracket 1. Limiting holes 101 are provided on the left and right sides of the wheel bracket 1. Wheel hubs 2 are rotatably arranged on the left and right sides of the wheel bracket 1. A drive shaft 201 is inserted into the limiting hole 101. The limiting hole 101 is an elliptical hole, which is used to provide the drive shaft 201 with swing space in the vertical direction. Both ends of the drive shaft 201 pass through the wheel hub 2. Fixing rings 202 are fixed at both ends of the drive shaft 201. An adapter hole 102 is opened in the wheel bracket 1. A limiting rod 3 is inserted into the adapter hole 102. An installation hole 301 is opened on the outer wall of the limiting rod 3. The drive shaft 201 is rotatably sleeved with the installation hole 301.

[0023] During use, the drive shaft 201 is inserted into the limiting hole 101, which has an elliptical structure, allowing the drive shaft 201 to swing in the vertical direction. When the luggage compartment is driven on uneven roads, the drive shaft 201 drives the wheel hub 2 to move slightly up and down, helping the wheel set to automatically adjust, maintain overall balance, and improve the stability of pushing.

[0024] like Figures 1-4 As shown, a limiting port 103 is provided in the adapter hole 102, and a limiting platform 302 is provided on the outer wall of the limiting rod 3. The limiting platform 302 is located in the corresponding limiting port 103 and a gap is left between it and the limiting port 103, so that the limiting rod 3 can rotate around the axis within the adapter hole 102. The left and right sides of the wheel bracket 1 have arc surfaces 104, and the wheel hub 2 has a boss 203 on the side close to the wheel bracket 1. The end face of the boss 203 is in contact with the arc surface 104.

[0025] During use, the drive shaft 201 passes through the mounting hole 301 on the limiting rod 3 and forms a rotatable connection with it. There is a gap between the limiting platform 302 on the outer wall of the limiting rod 3 and the limiting opening 103 of the adapter hole 102, allowing the limiting rod 3 to rotate within the adapter hole 102 at a limited angle. This design allows the wheel set to flexibly adjust its angle during driving, which helps to balance the force on the luggage compartment and improve steering response.

[0026] like Figures 1-5 As shown, the wheel bracket 1 has a rotating hole 105, in which a rotating shaft 5 is rotatably mounted. The top of the rotating shaft 5 is connected to a wheel frame 501, which is used to connect to a suitcase. A pin hole 106 is provided through one side of the wheel bracket 1, which is connected to the rotating hole 105. A metal pin 6 is provided in the pin hole 106. A circular step 502 is fixed at the bottom of the rotating shaft 5. The axial section of the circular step 502 is inverted T-shaped, and a limiting gap is formed between it and the bottom of the rotating shaft 5. The metal pin 6 is located in the limiting gap and is set perpendicular to the axis of the rotating shaft 5. It is used to axially limit the rotating shaft 5 to prevent it from coming out of the rotating hole 105.

[0027] During use, to prevent the rotating shaft 5 from coming off, a circular step 502 with an inverted T-shaped cross-section is fixed to the bottom end of the rotating shaft 5, forming a limiting gap between the circular step 502 and the bottom end of the rotating shaft 5. After the metal pin 6 is inserted into the limiting gap, it works in conjunction with the circular step 502 to play a role in preventing disengagement and limiting the rotation.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-balancing omnidirectional wheel, comprising a wheel bracket (1), characterized in that, The wheel bracket (1) has limiting holes (101) on its left and right sides respectively. Wheel hubs (2) are rotatably provided on the left and right sides of the wheel bracket (1). A drive shaft (201) is inserted into the limiting hole (101). The limiting hole (101) is an elliptical hole, which is used to provide the drive shaft (201) with swing space in the up and down direction. Both ends of the drive shaft (201) pass through the wheel hub (2). Fixed rings (202) are fixed at both ends of the drive shaft (201). An adapter hole (102) is opened in the wheel bracket (1). A limiting rod (3) is inserted into the adapter hole (102). An installation hole (301) is opened on the outer wall of the limiting rod (3). The drive shaft (201) is rotatably sleeved with the installation hole (301).

2. The self-balancing omnidirectional wheel according to claim 1, characterized in that: A limiting port (103) is provided in the adapter hole (102), and a limiting platform (302) is provided on the outer wall of the limiting rod (3). The limiting platform (302) is located in the corresponding limiting port (103) and there is a gap between it and the limiting port (103) so that the limiting rod (3) can rotate around the axis within the adapter hole (102).

3. A self-balancing omnidirectional wheel according to claim 1, characterized in that: The wheel bracket (1) has arc surfaces (104) on both the left and right sides, and the wheel hub (2) has a boss (203) on the side near the wheel bracket (1), with the end face of the boss (203) in contact with the arc surface (104).

4. A self-balancing omnidirectional wheel according to claim 1, characterized in that: The wheel bracket (1) has a rotating hole (105), and a rotating shaft (5) is rotatably disposed in the rotating hole (105). A wheel frame (501) is connected to the top of the rotating shaft (5), and the wheel frame (501) is used to connect to the suitcase.

5. A self-balancing omnidirectional wheel according to claim 4, characterized in that: A pin hole (106) is provided through one side of the wheel bracket (1), the pin hole (106) is connected to the rotating hole (105), and a metal pin (6) is provided in the pin hole (106).

6. A self-balancing omnidirectional wheel according to claim 5, characterized in that: A circular step (502) is fixed at the bottom end of the rotating shaft (5). The axial section of the circular step (502) is inverted T-shaped, and a limiting gap is formed between it and the bottom end of the rotating shaft (5). The metal pin (6) is located in the limiting gap and is set perpendicular to the axis of the rotating shaft (5) to axially limit the rotating shaft (5) to prevent it from coming out of the rotating hole (105).

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