A wheel assembly for a wheeled luggage case

Abstract

The utility model discloses a kind of wheeled travel bag's wheel assembly, its key points are: including mounting seat, wheel assembly, wheel axle assembly and locking assembly.Wheel assembly includes two wheels.Wheel axle assembly includes left wheel axle and right wheel axle.Left wheel axle and right wheel axle are coaxially arranged and slidably arranged on mounting seat, and the distance between left wheel axle and right wheel axle can be adjusted.Two wheels are respectively arranged on corresponding left wheel axle and right wheel axle.The distance between two wheels can be adjusted by wheel axle assembly.The relative position between two wheels is positioned by locking assembly.

Description

Technical Field

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

[0002] To reduce the burden and fatigue during travel, more and more suitcases are adding riding functionality, which not only reduces the burden of moving the suitcase but also alleviates fatigue by riding it. Chinese patent document CN222548714U discloses a rideable smart suitcase, including a frame 1, a front cover 2, and a rear cover 3. The front cover 2 is installed on the front side of the frame 1 via a zipper, and the rear cover 3 is fixedly installed on the rear side of the frame 1. A pedal control assembly 5 is provided at the bottom of the frame 1. A cavity is provided on the left side of the frame 1, and a steering control assembly 6 for controlling steering and the pedal control assembly 5 is provided in the cavity. A control panel 13 is provided on one side of the frame 1. The control panel 13 is equipped with a battery 14 and a switch assembly 15. The battery 14, the switch assembly 15, and the electric drive wheel 4 are connected by wiring. The battery 14 and the switch assembly 15 can provide power and start / stop control for the electric drive wheel 4. Both the front cover 2 and the rear cover 3 have electric drive wheels 4 mounted on their right bottom sides. These wheels can brake the luggage compartment and, in conjunction with the electric drive wheels 4, control its movement. (Refer to the accompanying diagram in the instruction manual.) Figure 2 As can be seen, the electric drive wheel 4 is located at the bottom right side of the front cover 2 and the rear cover 3, that is, under the box body when riding. Therefore, its center of gravity is easily shifted, causing it to tip over, resulting in low safety. Chinese patent document CN220859611U discloses a new type of electric luggage box, including a box body, a battery, a controller, a first slide rail disposed inside the box body, a first telescopic rod mounted on the first slide rail and protruding from the box body that can slide along the first slide rail, a first driver for driving the first telescopic rod to slide, a second slide rail disposed at the rear bottom of the box body, a second telescopic rod mounted on the second slide rail and that can slide along the second slide rail, and a second driver for driving the second telescopic rod to slide. Both the first and second telescopic rods are equipped with racks. The output ends of the first and second drivers are equipped with drive gears adapted to the racks. The first and second drivers drive the racks to move laterally by rotating forward and backward, and drive the first and second telescopic rods to extend and retract. Under the drive of the second driver, the second telescopic rod can slide back and forth along the second slide rail, and drive the rear wheel fork and the rear wheel to extend and retract. The rear wheel is easy to adjust, and increasing the wheelbase can greatly improve the stability of the electric suitcase when riding. However, when not riding, the rear wheel protrudes beyond the left and right sides of the suitcase, which takes up a lot of storage space. Utility Model Content

[0003] The purpose of this invention is to provide a wheel assembly for a personal travel suitcase that has a simple structure, occupies little space when stored, and provides good safety when riding.

[0004] The basic technical solution for achieving the purpose of this utility model is: a wheel assembly for a personal travel suitcase, characterized by the following structural features: a mounting base, a wheel assembly, an axle assembly, and a locking assembly. The wheel assembly includes two wheels. The axle assembly includes a left axle and a right axle. The left and right axles are coaxially and slidably mounted on the mounting base, and the distance between the left and right axles is adjustable. The two wheels are respectively mounted on their respective left and right axles. Therefore, the distance between the two wheels can be adjusted by the axle assembly. The relative position between the two wheels is positioned by the locking assembly.

[0005] To facilitate position control during adjustment, a limiting component is also included. The limiting component is used to limit the adjustment range of the distance between the two wheels.

[0006] To facilitate assembly and processing, the wheel and axle assembly also includes a connecting shaft, which coaxially connects the left and right wheel axles together. One end of the connecting shaft is fixedly connected to the right wheel axle, and the other end is slidably connected to the left wheel axle.

[0007] To maintain wheel distance, the left wheel axle is slidably mounted on the mounting base. The front side of the left wheel axle has two forward-facing left positioning holes from left to right. The connecting shaft is slidably mounted on the mounting base. The right end of the connecting shaft is fixedly connected to the left end of the right wheel axle, and the front side of the connecting shaft has two forward-facing right positioning holes from left to right. There are two sets of locking components, both with identical structures, used to lock the left wheel axle and the connecting shaft respectively.

[0008] Furthermore, for ease of securing, the locking assembly includes a locking pin. The locking pin is slidably mounted on the mounting base and engages with a corresponding left or right locating hole.

[0009] For ease of adjustment, a left guide hole with an opening facing backward is provided on the rear side of the left wheel axle; the left guide hole is an oblong hole. A right guide hole with an opening facing backward is provided on the rear side of the connecting shaft; the right guide hole is an oblong hole.

[0010] There are two sets of limiting components. Both sets of limiting components have the same structure and use limiting screws. The limiting screws are fixedly screwed onto the mounting base, and their front ends extend into the corresponding left or right guide hole, thereby limiting the left and right movement of the left wheel shaft and the connecting shaft.

[0011] Furthermore, to facilitate the use of hub motor wheels: both wheels are hub motor wheels. A wiring hole is provided in the center of the mounting base.

[0012] The left axle has a blind hole opening to the right, and a left wiring hole on the left side of the left axle, which communicates with the blind hole. A corresponding hub motor wheel is fixedly mounted on the left end of the left axle, and its power cable passes through the left wiring hole into the blind hole. A left wiring notch is located on the upper right end of the left axle, communicating with the blind hole. The left wiring notch is located below the wiring hole of the mounting base.

[0013] The right axle has a blind hole opening to the left, and a right wiring hole on the right side of the right axle, which communicates with the blind hole. A corresponding hub motor wheel is fixedly mounted on the right axle, and its power cable passes through the right wiring hole into the blind hole.

[0014] The connecting shaft is a hollow shaft with a wire-passing notch on its upper left side. This notch extends through the shaft wall. The left wheel axle is slidably mounted within the connecting shaft, and the position of the wire-passing notch corresponds to the position of the left wire-passing notch, located below the wire-passing hole of the mounting base.

[0015] The present invention has the following beneficial effects: (1) The wheel assembly of the travel suitcase of the present invention has a simple structure and the distance between the wheels can be adjusted. Therefore, when not riding, the distance between the wheels can be reduced so that the widest distance between the two wheels is not greater than the thickness of the suitcase, which makes it easy to store and saves space. When riding is required, the distance between the two wheels can be increased so that the widest distance between the two wheels is greater than the thickness of the suitcase, which can prevent the suitcase from tipping over when riding and greatly improve the safety of use.

[0016] (2) The wheel assembly of the personal travel case of this utility model is equipped with a positioning component, which is simple in structure and easy to operate.

[0017] (3) The wheel assembly of the travel suitcase of this utility model is provided with a limiting component, which restricts the left and right movement of the left wheel axle and the connecting shaft, and at the same time plays a positioning role. When it moves to a position where it cannot move, that is, the locking component can lock, so as to make it easy to judge whether it is adjusted in place. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the wheel assembly of the personal travel case of this utility model when it is stowed.

[0019] Figure 2 for Figure 1 A diagram showing the view from the right.

[0020] Figure 3 From Figure 1 A diagram showing the view from the upper right front.

[0021] Figure 4 From Figure 1 A diagram showing the view from the lower left rear.

[0022] Figure 5 This is a schematic diagram of the wheel assembly of the personal travel case of this utility model when it is unfolded.

[0023] Figure 6 for Figure 5 A top-down view.

[0024] Figure 7 From Figure 5 A diagram showing the view from the lower right front.

[0025] Figure 8 From Figure 5 A diagram showing the view from the upper left front.

[0026] Figure 9 From Figure 5 The diagram shows the view after removing the mounting bracket when viewed from the upper left front.

[0027] Figure 10 From Figure 5 The diagram shows the view after removing the mounting bracket when viewed from the upper right rear.

[0028] Figure 11 for Figure 5 A diagram showing the view from the right.

[0029] Figure 12 for Figure 11 AA section view diagram.

[0030] The labels in the attached diagram are: Mounting base 1, wire hole 1-1 Wheel assembly 2, Wheel and axle assembly 3, left wheel and axle 3-1, left threading hole 3-11, left threading notch 3-12, left positioning hole 3-13, left guide hole 3-14. Right axle 3-2, right threading hole 3-21, Connecting shaft 3-3, connecting shaft threading notch 3-31, right positioning hole 3-32, right guide hole 3-33 Locking component 4, locking pin 4-1, pull ring 4-2, Limiting component 5. Detailed Implementation

[0031] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. The description of the orientation of this utility model is as follows: Figure 1 Proceeding in the indicated direction, that is Figure 1 The up, down, left, and right directions shown are the same as the directions described. Figure 1 The direction one faces is the front, and the direction one turns away from is the back. Figure 1 The side to the left is the rear. The terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model or simplifying the description, rather than indicating a specific orientation that must be present.

[0032] (Example 1) See Figures 1 to 12 The wheel assembly for this personal transport case includes a mounting base 1, a wheel assembly 2, an axle assembly 3, a locking assembly 4, and a limiting assembly 5. The wheel assembly 2 includes two wheels, both of which are hub motor wheels. The mounting base 1 has a wire hole 1-1 in the center. The two wheels are rotatably mounted on the mounting base 1 via the axle assembly 3, and the distance between the two wheels can be adjusted via the axle assembly 3. The relative position between the two wheels is positioned by the locking assembly 4. The limiting assembly 5 is used to limit the adjustable range of the distance between the two wheels.

[0033] See Figures 5 to 12 The wheel and axle assembly 3 includes a left wheel axle 3-1, a right wheel axle 3-2, and a connecting shaft 3-3. The left wheel axle 3-1 and the right wheel axle 3-2 are coaxially and slidably mounted on the mounting base 1, and the distance between them is adjustable. In this embodiment, the left wheel axle 3-1 and the right wheel axle 3-2 are coaxially connected together via the connecting shaft 3-3. One end of the connecting shaft 3-3 is fixedly connected to the right wheel axle 3-2, and the other end is slidably connected coaxially to the left wheel axle 3-1.

[0034] The left axle 3-1 is slidably mounted on the mounting base 1. The left axle 3-1 has a blind hole opening to the right, and a left wiring hole 3-11 on the left side of the left axle 3-1, which communicates with the blind hole. A corresponding hub motor wheel is fixedly mounted on the left end of the left axle 3-1, and its power cable passes through the left wiring hole 3-11 into the blind hole. A left wiring notch 3-12 is located on the upper right end of the left axle 3-1, communicating with the blind hole. The left wiring notch 3-12 is located below the wiring hole 1-1 of the mounting base 1.

[0035] The front side of the left wheel axle 3-1 has two forward-facing left positioning holes 3-13 arranged sequentially from left to right. The rear side of the left wheel axle 3-1 has a rearward-facing left guide hole 3-14 arranged along the left and right sides. The left guide hole 3-14 is an oblong hole and a blind hole. The oblong hole serves as a guide and also prevents external dust and other debris from entering the blind hole of the left wheel axle 3-1.

[0036] The right axle 3-2 has a blind hole opening to the left, and the right side of the right axle 3-2 has a right wire hole 3-21, which communicates with the blind hole. A corresponding hub motor wheel is fixedly mounted on the right axle 3-2, and its power cable passes through the right wire hole 3-21 into the blind hole.

[0037] The connecting shaft 3-3 is slidably mounted on the mounting base 1. The connecting shaft 3-3 is a hollow shaft, with its right end fixedly connected to the left end of the right wheel shaft 3-2. A wire-passing notch 3-31 is provided on the left side of the connecting shaft 3-3, penetrating the shaft wall. The left wheel shaft 3-1 is slidably mounted within the connecting shaft 3-3, with the wire-passing notch 3-31 corresponding to the left wire-passing notch 3-12 and located below the wire-passing hole 1-1 of the mounting base 1.

[0038] The front side of the connecting shaft 3-3 has two right positioning holes 3-32 with openings facing forward, arranged sequentially from left to right. The rear side of the connecting shaft 3-3 has right guide holes 3-33 with openings facing backward, arranged along the left and right sides. The right guide holes 3-33 are oblong holes and are blind holes. The oblong holes serve as guides while preventing external dust and other debris from entering the blind holes of the connecting shaft 3-3.

[0039] See Figure 9 and Figure 10 The locking assembly 4 consists of two sets, both with identical structures, used to lock the left wheel axle 3-1 and the connecting shaft 3-3, respectively. The locking assembly 4 includes a locking pin 4-1 and a pull ring 4-2. The locking pin 4-1 is slidably mounted on the mounting base 1 and is held in a rearward position by a corresponding compression spring. The rear end of the locking pin 4-1 extends into the corresponding left positioning hole 3-13 or right positioning hole 3-32. The pull ring 4-2 is located at the front end of the locking pin 4-1. In use, pulling the locking pin 4-1 forward using the pull ring 4-2 pulls its rear end out of the left positioning hole 3-13 or right positioning hole 3-32, allowing the left wheel axle 3-1 and the connecting shaft 3-3 to slide.

[0040] See Figure 10 There are two sets of limiting components 5. The two sets of limiting components 5 have the same structure and both use limiting screws. The limiting screws are fixedly screwed onto the mounting base 1, and their front ends extend into the corresponding left guide hole 3-14 or right guide hole 3-33, thereby limiting the left and right movement stroke of the left wheel shaft 3-1 and the connecting shaft 3-3.

[0041] When the wheel assembly of this utility model is in use and stored, the widest distance between the two wheels is no greater than the thickness of the suitcase. When it is to be used for transportation by riding, the locking pin 4-1 is pulled forward by the pull ring 4-2, thereby pulling its rear end out from the left positioning hole 3-13 or the right positioning hole 3-32. Then, the left wheel axle 3-1 and the connecting shaft 3-3 slide outward to their maximum position. After releasing the pull ring 4-2, the locking pin 4-1 moves backward under the drive of the corresponding compression spring and extends into the corresponding left positioning hole 3-13 or the right positioning hole 3-32, thereby locking the two wheels at their maximum distance. At this time, the widest distance between the two wheels is greater than the thickness of the suitcase, thus preventing the suitcase from tipping over while riding and greatly improving safety.

[0042] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wheel assembly for a personal travel suitcase, characterized in that: The device includes a mounting base (1), a wheel assembly (2), an axle assembly (3), and a locking assembly (4). The wheel assembly (2) includes two wheels. The axle assembly (3) includes a left axle (3-1) and a right axle (3-2). The left axle (3-1) and the right axle (3-2) are coaxially and slidably mounted on the mounting base (1), and the distance between the left axle (3-1) and the right axle (3-2) is adjustable. The two wheels are respectively mounted on the corresponding left axle (3-1) and right axle (3-2). Thus, the distance between the two wheels can be adjusted by the axle assembly (3). The relative position between the two wheels is positioned by the locking assembly (4).

2. The wheel assembly for a personal transport case according to claim 1, characterized in that: It also includes a limiting component (5); the limiting component (5) is used to limit the range of adjustment of the distance between the two wheels.

3. The wheel assembly for a personal transport case according to claim 1 or 2, characterized in that: The wheel and axle assembly (3) also includes a connecting shaft (3-3), through which the left wheel axle (3-1) and the right wheel axle (3-2) are coaxially connected and set together. One end of the connecting shaft (3-3) is fixedly connected to the right wheel axle (3-2), and the other end is slidably connected to the left wheel axle (3-1) coaxially.

4. The wheel assembly for a personal transport case according to claim 3, characterized in that: The left wheel axle (3-1) is slidably mounted on the mounting base (1); the front side of the left wheel axle (3-1) is provided with two forward-facing left positioning holes (3-13) from left to right; the connecting shaft (3-3) is slidably mounted on the mounting base (1); the right end of the connecting shaft (3-3) is fixedly connected to the left end of the right wheel axle (3-2), and the front side of the connecting shaft (3-3) is provided with two forward-facing right positioning holes (3-32) from left to right; there are two sets of locking components (4), and the two sets of locking components have the same structure and are used to lock the left wheel axle (3-1) and the connecting shaft (3-3) respectively.

5. The wheel assembly for a personal transport case according to claim 4, characterized in that: The locking assembly (4) includes a locking pin (4-1); the locking pin (4-1) is slidably disposed on the mounting base (1) and engages with the corresponding left positioning hole (3-13) or right positioning hole (3-32).

6. The wheel assembly for a personal transport case according to claim 3, characterized in that: The left wheel axle (3-1) has a left guide hole (3-14) with an opening facing backward along the left and right sides. The left guide hole (3-14) is an oblong hole. The connecting shaft (3-3) has a right guide hole (3-33) with an opening facing backward along the left and right sides. The right guide hole (3-33) is an oblong hole. There are two sets of limiting components (5). The two sets of limiting components (5) have the same structure and both use limiting screws. The limiting screws are fixedly screwed onto the mounting base (1), and their front ends extend into the corresponding left guide hole (3-14) or right guide hole (3-33), thereby limiting the left and right movement stroke of the left wheel shaft (3-1) and the connecting shaft (3-3).

7. The wheel assembly for a personal transport case according to claim 3, characterized in that: Both wheels are hub motor wheels; the mounting base (1) has a wire hole (1-1) in the middle. The left axle (3-1) has a blind hole opening to the right, and the left part of the left axle (3-1) has a left wire hole (3-11) that communicates with the blind hole; a corresponding hub motor wheel is fixedly mounted on the left end of the left axle (3-1), and its power line passes through the blind hole from the left wire hole (3-11); the upper right end of the left axle (3-1) has a left wire notch (3-12) that communicates with the blind hole; the left wire notch (3-12) is located below the wire hole (1-1) of the mounting base (1); The right wheel axle (3-2) has a blind hole opening to the left, and the right side of the right wheel axle (3-2) has a right wire hole (3-21), which is connected to the blind hole; a corresponding hub motor wheel is fixedly mounted on the right wheel axle (3-2), and its power line passes through the right wire hole (3-21) into the blind hole; The connecting shaft (3-3) is a hollow shaft. The left side of the connecting shaft (3-3) is provided with a connecting shaft wire notch (3-31). The connecting shaft wire notch (3-31) passes through the shaft wall of the connecting shaft (3-3). The left wheel shaft (3-1) is slidably arranged in the connecting shaft (3-3). The position of the connecting shaft wire notch (3-31) corresponds to the position of the left wire notch (3-12) and is located below the wire hole (1-1) of the mounting base (1).

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