A suitcase with powered wheels that can be raised or lowered

Abstract

To provide a suitcase with power wheels that can be raised and lowered. [Solution] The case includes a case body (10) for storing luggage, a powered wheel (20) mounted on the bottom of the case body and rotatable between two adjacent driven wheels (30) for moving the case body, a plurality of driven wheels also mounted on the bottom of the case body, and a plurality of elastic members connected between each of the driven wheels and the case body, which are elastically compressed to make the bottoms of the driven wheels and the powered wheels flush with each other. When the user has a lot of luggage, the case body can be moved on the ground under the drive of the powered wheels, reducing the burden on the user compared to pulling a suitcase and making it easier for the user to go out.

Description

[Technical Field]

[0001] The present application relates to the field of suitcases, and in particular to suitcases with powered wheels that can be raised or lowered. [Background technology]

[0002] In related technology, there are four omni-wheels at the bottom of a suitcase, and the suitcase can be moved by pulling the omni-wheels. However, if there is a lot of luggage, the heavy suitcase puts a heavy burden on the user. Summary of the Invention [Problem to be solved by the invention]

[0003] Therefore, it is necessary to provide a suitcase with powered wheels that can be raised and lowered to automatically drive the movement of the case body in order to reduce the burden on the user. [Means for solving the problem]

[0004] One embodiment of the present application provides a suitcase with power wheels that can be raised and lowered, including a case body for storing luggage, a power wheel provided at the bottom of the case body and rotatable to move the case body, a plurality of driven wheels all provided at the bottom of the case body and positioned between two adjacent driven wheels, and a plurality of elastic members, each connected between each driven wheel and the case body, which are elastically compressed to make the bottom of the driven wheel and the bottom of the power wheel at the same height.

[0005] In the suitcase, after the case body contains the user's luggage, the weight of the case body elastically compresses the elastic member, and both the powered wheel and the driven wheel contact the ground. The powered wheel rotates to drive the case body to move, and the driven wheel supports the case body and rolls on the ground as the case body moves. Therefore, when the user has a lot of luggage, the case body can move on the ground under the drive of the powered wheel, which reduces the burden on the user compared to pulling the suitcase and makes it easier for the user to go out.

[0006] In some embodiments, there are four driven wheels, which are distributed in a rectangular shape on the bottom of the case body and connected to the corners of the case body, respectively.

[0007] In some embodiments, the power wheel is located at the center of the case body in the width direction of the case body.

[0008] In some embodiments, the driving wheel is closer to the two driven wheels along the length of the case body.

[0009] In some embodiments, the elastic member is a spring, a guide rod is connected to the driven wheel, the elastic member is fitted onto the guide rod, and the guide rod is slidably connected to the case body so as to guide the elastic member to move in the height direction of the case body.

[0010] In some embodiments, the guide rod is provided with a stopper that abuts against the bottom of the case body when the elastic member is elastically compressed.

[0011] In some embodiments, the stopper is annular.

[0012] In some embodiments, the powered wheel is a motor wheel.

[0013] In some embodiments, the driven wheel is an omni-wheel.

[0014] In some embodiments, the suitcase further includes a handrail connected to the side of the case body near the powered wheel and penetrating the top of the case body along the height direction. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a structural schematic diagram of a suitcase according to an embodiment of the present application; [Figure 2] FIG. 2 is a front view of the suitcase in FIG. [Figure 3] FIG. 2 is a side view of the suitcase in FIG. [Figure 4] FIG. 4 is a partial schematic view of the suitcase in FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, the technical solutions of the present application will be described in conjunction with the drawings in the embodiments of the present application. It is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments.

[0017] It should be noted that when a component is said to be "fixed" to another component, it may be directly connected to the other component, or a centrally located component may be present. When a component is said to be "connected" to another component, it may be directly connected to the other component, or a central component may also be present. When a component is said to be "mounted" on another component, it may be directly mounted on the other component, or a central component may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," and similar expressions are used for descriptive purposes only.

[0018] Furthermore, the term "perpendicular" is used to describe an ideal state between two parts. In actual manufacturing or use, a nearly perpendicular state may exist between two parts. Two parts described as "perpendicular" do not have to be absolutely straight or planar, but may be nearly straight or planar. Macroscopically, parts can be considered "straight" or "planar" if their overall extension direction is straight or planar.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terms used herein in the specification of this application are for the purpose of describing particular embodiments only and are not intended to be limiting of the application.

[0020] There are four omni-wheels at the bottom of the suitcase, and pulling the suitcase rolls the omni-wheels to move the suitcase. However, if there is a lot of luggage, a heavy suitcase puts a heavy burden on the user.

[0021] Therefore, there is a need to provide a suitcase with a power wheel that can be raised and lowered to automatically drive the movement of the case body to reduce the burden on the user.The suitcase with a power wheel that can be raised and lowered includes a case body for storing luggage, a power wheel that is provided at the bottom of the case body and can rotate to move the case body, a plurality of driven wheels that are all provided at the bottom of the case body and are located between two adjacent driven wheels, and a plurality of elastic members that are connected between each driven wheel and the case body and that are elastically compressed to make the bottom of the driven wheel and the bottom of the power wheel at the same height. In the suitcase, after the case body contains the user's luggage, the weight of the case body elastically compresses the elastic member, and both the powered wheel and the driven wheel contact the ground. The powered wheel rotates to drive the case body to move, and the driven wheel supports the case body and rolls on the ground as the case body moves. Therefore, when the user has a lot of luggage, the case body can move on the ground under the drive of the powered wheel, which reduces the burden on the user compared to pulling the suitcase and makes it easier for the user to go out.

[0022] Hereinafter, several embodiments of the present application will be described in detail in conjunction with the drawings. If there is no conflict, the following embodiments and features in the embodiments may be combined with each other.

[0023] 1 to 3, in some embodiments, a suitcase 100 includes a case body 10, a powered wheel 20, a plurality of driven wheels 30, and a plurality of elastic members 40. The case body 10 is used to store luggage. The powered wheel 20 is provided at the bottom of the case body 10 and is rotatable to move the case body 10. The plurality of driven wheels 30 are all provided at the bottom of the case body 10, and each powered wheel 20 is located between two adjacent driven wheels 30 so as to support the case body 10 and roll as the case body 10 moves. An elastic member 40 is connected between each driven wheel 30 and the case body 10, and the elastic member 40 is elastically compressed to make the bottom of the driven wheel 30 and the bottom of the powered wheel 20 flush with each other. When the case body 10 contains luggage, the weight of the case body 10 elastically compresses the elastic member 40, and the driven wheel 30 and the power wheel 20 both come into contact with the ground, the power wheel 20 rotates to drive the case body 10 to move, and the driven wheel 30 supports the case body 10 and rolls on the ground as the case body 10 moves.

[0024] Therefore, when the user has a lot of luggage, the case body 10 can move on the ground under the drive of the powered wheels 20, which reduces the burden on the user compared to the user pulling the suitcase 100 and makes it easier for the user to go out.

[0025] The elastic deformation of the elastic member 40 allows the powered wheel 20 to move up and down relative to the driven wheel 30, thereby realizing the powered wheel 30 to move up and down relative to the ground.

[0026] 4, in some embodiments, the elastic member 40 is a spring. A guide rod 31 is connected to the driven wheel 30, and the elastic member 40 is fitted onto the guide rod 31. The guide rod 31 is slidably connected to the case body 10 and guides the elastic member 40 to move along the height direction of the case body 10.

[0027] The guide rod 31 regulates the movement direction of the elastic member 40 so that it is parallel to the height direction of the case body 10, and by guiding the movement of the elastic member 40, prevents the elastic member 40 from swinging due to elastic expansion and contraction, stabilizes the case body 10 during elastic expansion and contraction by the elastic member 40, prevents the case body 10 from swinging, and improves the stability of the suitcase 100.

[0028] In some embodiments, when there is no luggage in the case body 10 or the weight of the case body and the luggage does not exceed a preset range, the elastic member 40 belongs to a normal state, the four driven wheels 30 contact the ground, the powered wheels 20 do not contact the ground, and the case body 10 moves by rolling on the ground by the four driven wheels 30. When the weight of the case body 10 and the luggage exceeds the preset range, the elastic member 40 is elastically compressed, the powered wheels 20 contact the ground, the powered wheels 20 rotate and drive the case body 10 to move, and the driven wheels 30 support the case body 10 and roll on the ground as the case body 10 moves.

[0029] For example, the preset range is 25 kg or less.

[0030] In some embodiments, the guide rod 31 is provided with a stopper 311. The stopper 311 is used to abut against the bottom of the case body 10 when the elastic member 40 is elastically compressed. At this time, the bottom of the driven wheel 30 and the bottom of the power wheel 20 are positioned at the same height, and the power wheel 20 contacts the ground.

[0031] By providing the stopper 311 and limiting the range of elastic compression of the elastic member 40, it is possible to prevent the elastic member 40 from being overcompressed, causing damage to the elastic member 40 and elastic fatigue.

[0032] In some embodiments, the stopper 311 is annular. The annular stopper 311 can expand along the outer periphery of the guide rod 31 and better fit the shape of the columnar guide rod 31. The annular stopper 311 can stably abut against the upper end of the elastic member 40.

[0033] 2 and 3, in the illustrated embodiment, the height direction is the direction parallel to the Z axis.

[0034] In some embodiments, the powered wheel 20 is a motor wheel that is rotatable to move the case body 10.

[0035] Referring to FIG. 3, in the illustrated embodiment, the powered wheels 20 rotate about a direction parallel to the Y axis.

[0036] 1 to 4, in some embodiments, the driven wheel 30 is an omni-wheel. The omni-wheel supports the case body 10 and rolls on the ground as the case body 10 moves, allowing the case body 10 to move stably on the ground.

[0037] In some embodiments, an energy storage member is provided within the case body 10, and the energy storage member can provide a power source to the powered wheels 20. For example, the energy storage member is a battery.

[0038] 1 to 3 , in some embodiments, the suitcase 100 further includes a handrail 50. The handrail 50 penetrates the top of the case body 10 in the height direction, making it easy for the user to pull the suitcase 100 and control the direction of movement of the suitcase 100. When in use, the user holds the handrail 50, the powered wheels 20 are activated to drive the case body 10 to move, and the driven wheels 30 support the case body 10 and roll on the ground as the case body 10 moves. The handrail 50 is connected to the side of the case body 10 closest to the powered wheels 20, and the handrail 50 and the powered wheels 20 are located forward while the suitcase 10 is moving, making it easy for the user to control the direction of movement of the suitcase 100.

[0039] In some embodiments, the top of the main case 10 can also accommodate a user. The handrail 50 passes between the user's legs to allow the suitcase 100 to move and save the user's physical strength. As can be understood, when a user goes out with a child, placing the child on top of the main case 10 can significantly reduce the burden on the user.

[0040] Referring to Figures 2 and 3, in some embodiments, the handrail 50 can rotate the powered wheel 20 around a direction parallel to the Z axis, thereby changing the direction of the powered wheel 20 and changing the direction of movement of the suitcase 100.

[0041] In some embodiments, the handrail 50 is coaxially connected to the powered wheel 20 so as to rotate the powered wheel 20 about a direction parallel to the Z axis.

[0042] In some embodiments, the handrail 50 is connected to the powered wheels 20 via a connecting structure and rotates to change the direction of the powered wheels 20 .

[0043] In some embodiments, the suitcase 100 further includes two pedals, which are provided on opposite sides of the width of the case body 10. The pedals are used for the user to place their feet when sitting on the case body 10, improving the user experience.

[0044] Referring to FIG. 3, in the illustrated embodiment, the width direction of the case body 10 is parallel to the Y axis.

[0045] 1 to 3, in some embodiments, a pedal is rotatably connected to a case body 10. The case body 10 is provided with a magnetic attraction member 11. The magnetic attraction member 11 attracts the pedal when the pedal rotates toward the case body 10, and is used to store the pedal.

[0046] In some embodiments, the pedal is made of a magnetic material, and the magnetically attracting member 11 is a magnet, which magnetically attracts the pedal.

[0047] In some embodiments, there are four driven wheels 30. The four driven wheels 30 are distributed in a rectangular shape on the bottom of the case body 10. Each driven wheel 30 is connected to a corner of the case body 10.

[0048] The four driven wheels 30 can stably support the case body 10 to prevent the case body 10 from tilting.

[0049] In some embodiments, the powered wheel 20 is located at the center of the case body 10 in the width direction of the case body 10, thereby improving the stability of the case body 10 and making the suitcase 100 more stable during movement.

[0050] In some embodiments, in the length direction of the suitcase body 10, the powered wheel 20 is close to two of the driven wheels 30. As can be seen, the powered wheel 20 is close to the two driven wheels 30 located at the front of the suitcase 100 during movement so as to drive the suitcase body 10 to move, and the powered wheel 20 and the other two powered wheels 20 form a triangular structure to improve the stability of the suitcase 100.

[0051] 2 and 3, in the illustrated embodiment, the length direction of the case body 10 is parallel to the X-axis, which is perpendicular to the Y-axis, and both the X-axis and the Y-axis are perpendicular to the Z-axis.

[0052] Furthermore, the above embodiments are intended to explain the present application and are not intended to limit the present application. Those skilled in the art should recognize that appropriate modifications and variations to the above embodiments are within the scope of the disclosure of the present application as long as they are within the substantial spirit of the present application. [Explanation of symbols]

[0053] 100, suitcase, 10, case body, 11 - magnetic adsorption member, 20, power wheel, 30, driven wheel, 31, guide rod, 311, stopper, 40, elastic member, 50, handrail, 60, foot step, X, width direction; Y, length direction; Z, height direction.

Claims

1. A suitcase with powered wheels that can be raised and lowered, a case body for storing luggage; A power wheel is provided at the bottom of the case body and is rotatable to move the case body; a plurality of driven wheels, each of which is provided at the bottom of the case body and positioned between two adjacent driven wheels; A suitcase with power wheels that can be raised and lowered, characterized in that the suitcase includes a plurality of elastic members, each of which is connected between each of the driven wheels and the case body, and the elastic members are elastically compressed to make the bottom of the driven wheel and the bottom of the power wheel at the same height.

2. 2. The suitcase according to claim 1, wherein the number of the driven wheels is four, the four driven wheels are distributed in a rectangular shape on the bottom of the case body, and the four driven wheels are connected to the corners of the case body, respectively.

3. 3. The suitcase according to claim 2, wherein the power wheel is located at the center of the case body in the width direction of the case body.

4. 3. The suitcase according to claim 2, wherein the powered wheels are closer to two of the driven wheels in the longitudinal direction of the case body.

5. A suitcase as described in any one of claims 1 to 4, characterized in that the elastic member is a spring, a guide rod is connected to the driven wheel, the elastic member is fitted onto the guide rod, and the guide rod is slidably connected to the case body so as to guide the elastic member to move in the height direction of the case body.

6. 6. The suitcase according to claim 5, wherein the guide rod is provided with a stopper that comes into contact with the bottom of the case body when the elastic member is elastically compressed.

7. 7. The suitcase according to claim 6, wherein the stopper is annular.

8. 7. The suitcase according to claim 6, wherein the powered wheels are motor wheels.

9. 7. The suitcase according to claim 6, wherein the driven wheel is an omniwheel.

10. The suitcase is 6. The suitcase according to claim 5, further comprising a handrail connected to a side of the case body close to the power wheel and penetrating the top of the case body along the height direction.

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