A rideable luggage

By designing retractable front and rear wheel assemblies and a seat assembly, the problem of the luggage wheels not being able to be hidden was solved, enabling flexible switching between storage and riding modes, thus improving convenience and safety.

CN115998062BActive Publication Date: 2026-05-01HOHAI UNIV CHANGZHOU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HOHAI UNIV CHANGZHOU
Filing Date
2022-12-20
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing design of suitcase wheels cannot be hidden, making it inconvenient to store them on the racks in airplanes or trains, and carrying heavy suitcases is also inconvenient for users.

Method used

The design incorporates a telescopic mechanism with front and rear wheel assemblies. A lead screw motor drives a nut to move the wheel fork, allowing the wheels to extend or retract into the housing when needed. This, combined with the seat assembly, enhances riding safety.

Benefits of technology

It enables flexible switching between storage and riding modes for the suitcase, improving convenience and safety, and reducing the space occupied by the suitcase when not in use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a rideable luggage bag in the technical field of luggage bags, and aims to solve the problems that wheels of the existing rideable luggage bag cannot be retracted and are not convenient to store. The rideable luggage bag comprises a box body, a front wheel assembly and a rear wheel assembly. A first wheel fork is fixed to the bottom end of a main shaft. An outer sleeve and the main shaft are movably connected through a first screw rod motor. A first screw rod with a first nut is arranged in the main shaft. The first screw rod motor is driven, the first nut drives the ear seat to move up and down, and the front wheel is retracted or extended from the front cavity. A first sliding frame is fixed to a vertical plate between the front and rear cavities. The first sliding frame is provided with a first sliding groove with a first sliding block. The two ends of a pull rod are connected with the first sliding block and the axle of the rear wheel respectively. A support frame is movably connected to the rear cavity. A second screw rod motor is fixed to the support frame. A second screw rod is provided with a second nut. The second nut is fixedly connected with the second wheel fork. The application is suitable for daily travel and solves the problem that it is not easy to store the luggage.
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Description

A rideable suitcase Technical Field

[0001] This invention relates to the field of luggage technology, and more particularly to a design of a rideable luggage. Background Technology

[0002] Suitcases are boxes used to carry belongings when traveling and are widely used by people when going out. Because suitcases are mostly used for long-distance business trips or travel, the items carried are usually heavy, which is a burden for users. In addition, users usually need to walk to the waiting room or waiting hall, especially when boarding or departure is approaching, carrying a heavy suitcase will cause great inconvenience. Secondly, the wheel design of existing suitcases cannot be hidden inside the box. When not riding, the protruding wheels will cause inconvenience to users, and the wheels are exposed on the outside, making it difficult to store them on the luggage racks of airplanes or trains. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rideable suitcase with a telescopic design of front and rear wheel components, which allows for alternating use of the suitcase for storage and riding, thereby improving the convenience of the suitcase.

[0004] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0005] The present invention provides a rideable suitcase, including a suitcase body, a front wheel assembly, and a rear wheel assembly; the suitcase body includes front and rear cavities disposed at both ends of a storage cavity; the front wheel assembly is disposed in the front cavity; and the rear wheel assembly is disposed in the rear cavity.

[0006] The front wheel assembly includes an outer tube, a hollow main shaft, and a first wheel fork fitted with the front wheel; the first wheel fork is fixed to the bottom end of the main shaft; the outer tube and the main shaft are hinged together by a first lead screw motor, and the first lead screw with a first nut is placed inside the main shaft; the outer tube and the main shaft are respectively fixed to the front cavity by a support seat; the ear seat is connected to the first nut through the guide groove of the main shaft; the ear seat is connected to the first wheel fork by a connecting rod; driving the first lead screw motor causes the first nut to move the ear seat up and down, and the front wheel retracts or extends out of the front cavity;

[0007] The rear wheel assembly includes a support frame, a pull rod, a first slide, and a second wheel fork fitted with the rear wheel; the first slide is fixed to a vertical plate between the front and rear cavities; the first slide has a first slide groove with a first slider; the two ends of the pull rod are respectively connected to the first slider and the axle of the rear wheel; the support frame is movably hinged to the rear cavity; a second lead screw motor is fixed to the support frame, and a second nut is attached to the second lead screw; the second nut is fixedly connected to the second wheel fork; driving the second lead screw motor and the second nut causes the rear wheel to move up and down, while the first slider causes the rear wheel to move back and forth, so that the rear wheel retracts or extends out of the rear cavity.

[0008] Furthermore, the front wheel assembly also includes a telescopic mechanism; the telescopic mechanism includes a handle, a crossbeam with a button, and an inner sleeve; positioning members are respectively connected to both sides of the crossbeam; the positioning members are connected to the handle; the inner sleeve is fitted inside the outer sleeve; the crossbeam communicates with the inner sleeve; a vertical rod connected to a push plate is inserted into the inner sleeve and connected to the button; the inner sleeve is provided with a spring pin; the push plate contacts the rotating part of the spring pin; pressing the button, the push plate presses down on the rotating part, causing the telescopic part of the spring pin to retract, determining the telescopic height of the inner sleeve, and releasing the button, so that the telescopic part extends and engages with the positioning hole on the outer sleeve for fixation.

[0009] Furthermore, a first cover plate is movably connected to the top of the box; when the telescopic mechanism retracts into the box, it flips and closes the first cover plate to the top of the box.

[0010] Furthermore, an auxiliary sleeve is fitted around the outer periphery of the main shaft.

[0011] Furthermore, the support frame is a U-shaped groove; the second lead screw motor is fixed in the U-shaped groove, and the second lead screw is placed in the U-shaped groove.

[0012] Furthermore, the support frame is provided with a second cover plate; the second lead screw motor is driven to retract the rear wheel, the second cover plate is retracted, and the box is in a closed state.

[0013] Furthermore, the bottom of the housing is connected to front and rear casters via a second vertical screw.

[0014] Furthermore, it also includes a foot pedal; the foot pedal is provided with a through hole; the second vertical screw of the front universal wheel passes through the through hole and is fixed to the bottom of the box; the foot pedal rotates around the second vertical screw of the front universal wheel and is stored in the foot pedal area of ​​the box.

[0015] Furthermore, it also includes a seat cushion assembly; the top of the housing is provided with a first assembly groove and a second assembly groove that communicate with each other; the seat cushion assembly includes a support pad, a connecting plate, and a second slide fixed to the support frame; the second slide is provided with a second slide groove with a second slider; the second assembly groove is provided with a third slide groove with a third slider; the support base is connected to the third slider; one end of the connecting plate is movably connected to the upper groove of the support base, and the other end is connected to the second slider; when retracted, the support base is embedded in the first assembly groove, a part of the connecting plate is placed in the upper groove of the support base, and the other part is embedded in the second assembly groove.

[0016] Furthermore, in the upper groove, the portion of the connecting plate placed in the upper groove is lower than the upper surface of the support base; the portion of the connecting plate placed in the second assembly groove is flush with the upper surface of the housing.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0018] This invention provides a rideable luggage case. A front wheel assembly is installed in the front cavity. When riding, a first lead screw motor and a second lead screw motor drive the first lead screw and the second lead screw to rotate, causing the first nut to move downward and push the first wheel fork to rotate and extend out of the luggage case. The second nut drives the rear wheel to move downward, and the first slider drives the rear wheel to move backward, causing the rear wheel to extend out of the luggage case. When storing or not riding, the first lead screw motor and the second lead screw motor drive the first lead screw and the second lead screw to rotate, causing the first nut to move upward and the second nut to move upward, respectively driving the front wheel and the rear wheel to retract into the luggage case.

[0019] For cycling safety, the present invention also provides a seat assembly; when riding, the support seat is flipped over, and the second slider of the connecting plate moves down to the end along the second slide groove, so that the connecting rod supports the flipped support seat, extending the length of the riding seat and ensuring cycling safety. Attached Figure Description

[0020] Figure 1 is a diagram showing the riding usage state of a rideable suitcase provided by the present invention;

[0021] Figure 2 is a schematic diagram of the retracted state of Figure 1;

[0022] Figure 3 is a partial disassembly diagram of Figure 1;

[0023] Figure 4 is a schematic diagram of the front wheel assembly;

[0024] Figure 5 is a half-sectional view of Figure 4;

[0025] Figure 6 is an enlarged view of point A in Figure 5;

[0026] Figure 7 is a partial front view of Figure 4;

[0027] Figure 8 is a partial structural schematic diagram of Figure 4;

[0028] Figure 9 is a schematic diagram of the telescopic mechanism;

[0029] Figure 10 is a cross-sectional view of Figure 9;

[0030] Figure 11 is a schematic diagram of the rear wheel assembly.

[0031] Figure 12 is a partially enlarged view of Figure 11.

[0032] Figure 13 is a schematic diagram of the foot pedal structure;

[0033] Figure 14 is the front view of Figure 4;

[0034] Figure 15 is a partial assembly diagram of Figure 1;

[0035] In the diagram: 1. Box body; 11. Front cavity; 12. Rear cavity; 13. First cover plate; 14. Second cover plate; 15. First assembly slot; 16. Second assembly slot; 17. Support base; 18. Vertical plate; 191. Front support plate; 192. Rear support plate; 161. Third slide groove; 162. Third slider;

[0036] 2. Front wheel assembly; 21. Handlebar; 22. Crossbeam; 23. Positioning component; 24. Inner sleeve; 25. Outer sleeve; 26. Main shaft; 27. First lead screw motor; 28. First wheel fork; 29. ​​Connecting rod; 221. Button; 231. Lateral screw; 232. First vertical screw; 241. Vertical rod; 242. Push plate; 243. Spring pin; 251. Moving groove; 261. Auxiliary sleeve; 271. First lead screw; 272. First nut; 273. Ear seat; 274. Guide groove;

[0037] 3. Rear wheel assembly; 31. Support frame; 32. Tie rod; 33. First carriage; 34. Second wheel fork; 35. Second lead screw motor; 331. First slide groove; 332. First slider; 351. Second lead screw; 352. Second nut;

[0038] 4. Seat cushion assembly; 41. Support pad; 42. Connecting plate; 43. Second slide; 411. Upper groove; 431. Second slide groove; 432. Second slider;

[0039] 5. Casters; 51. Second vertical screw; 6. Foot pedal. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Example 1:

[0044] Referring to Figures 1 to 14, this embodiment provides a rideable luggage box, including a box body 1, a front wheel assembly 2, and a rear wheel assembly 3. As shown in Figures 3 and 15, the box body 1 is divided into a storage cavity, a front cavity 11, and a rear cavity 12. The storage cavity is located between the front cavity 11 and the rear cavity 12. The front cavity 11 is a semi-enclosed space formed by several front support plates 191, used for assembling the front wheel assembly 2. The rear cavity 12 is a semi-enclosed space formed by several rear support plates 192, used for assembling the rear wheel assembly 3; the front cavity 11 and the rear cavity 12 are fixedly connected by a vertical plate 18.

[0045] Specifically, as shown in Figures 4, 5, 6, 7, and 14, the front wheel assembly 2 includes an outer tube 25, a main shaft 26, a first wheel fork 28, and a front wheel. Referring to Figures 7 and 8, the front wheel is mounted on the first wheel fork 28. The main shaft 26 is a hollow tube, and the first wheel fork 28 is hinged to the bottom end of the main shaft 26, allowing the first wheel fork 28 to rotate around the hinge point. A first lead screw motor 27 is located between the outer tube 25 and the main shaft 26. The first lead screw 217 connected to the first lead screw motor 27 is placed inside the tube of the main shaft 26, and a first nut 272 is mounted on the first lead screw 217. A guide groove 274 is provided on the main shaft 26, and an ear seat 273 is fixedly connected to the first nut 272 inside the main shaft 26 through the guide groove 274. One end of the connecting rod 29 is connected to the ear seat 273, and the other end is connected to the first wheel fork 28. When the first lead screw motor 27 drives the first lead screw 217 to rotate forward and backward, the first nut 272 will move up and down along the first lead screw 217, and at the same time pull the connecting rod 29 to drive the first wheel fork 28 to retract around the hinge point into the front cavity 11, or extend out of the bottom of the box body 1 so that the front wheel is supported on the ground.

[0046] Referring to Figures 3, 11, 12, and 15, the rear wheel assembly 3 includes a support frame 31, a tie rod 32, a first slide 33, a second wheel fork 34, and a rear wheel. The rear wheel is mounted on the second wheel fork 34, and the first slide 33 is bolted to the inner side of the upright plate 18. The first slide 33 has a first groove 331, and a first slider 332 is mounted in the first groove 331, allowing it to move back and forth. One end of the tie rod 32 is slidably connected to the first slider 332, and the other end is connected to the axle of the rear wheel. One end of the support frame 31 is movably hinged to the upper end of the rear cavity 12, and a second lead screw motor 35 with a second lead screw 351 is mounted inside the support frame 31. A second nut 352 is mounted on the second lead screw 351 and fixedly connected to the second wheel fork 34. When the second lead screw motor 35 drives the second lead screw 351 to rotate forward and backward, the second nut 352 drives the second wheel fork 34 to move up and down. Since the rear wheel is connected to the pull rod 32 and is pulled by the first slider 332, the first slider 332 moves back and forth along the first slide groove 331, causing the rear wheel to retract into the rear cavity 12 or extend out of the housing 1. When the rear wheel is retracted into the housing 1, it enters the housing 1 along a specific track (the first slide groove 331), maintaining the stability of the retraction. In addition, after the rear wheel extends out of the housing 1, the first slider 332 moves to the end of the first slide groove 331. At this time, the pull rod 32 provides a certain degree of support, ensuring the safety of riding.

[0047] Optionally, as shown in Figures 5, 6, 9, and 10, the front wheel assembly 2 also includes a telescopic mechanism. The telescopic mechanism includes a handle 21, a crossbeam 22, and an inner sleeve 24. A button 221 is mounted on the crossbeam 22. Positioning members 23 are connected to both ends of the crossbeam 22 via transverse screws 231, allowing the positioning members 23 to rotate around the transverse screws 231. The handle 21 is connected to the positioning member 23 via vertical bolts, allowing the handle 21 to rotate around a first vertical screw 232. Generally, the overall dimensions of the handle 21, positioning member 23, and crossbeam 22 are smaller than the width of the housing 1. In this embodiment, the handle 21 and positioning member 23 are movably connected and can be rotatably accommodated within the housing 1.

[0048] One end of the inner sleeve 24 is fixed to the bottom of the crossbeam 22 and passes through the crossbeam 22; the other end is sleeved inside the outer sleeve 25. A spring pin 243 can be purchased commercially. A fixing bolt passes through the outer sleeve 25 and is assembled at the bottom end of the inner sleeve 24 with the spring pin 243. The outer sleeve 25 has a moving groove 251 for the fixing bolt to move up and down. The spring pin 243 includes a rotating part and a telescopic part; pressing the rotating part causes the telescopic part to retract into the inner sleeve 24. A vertical rod 241 is assembled inside the inner sleeve 241 and its top end is fixedly connected to the button 221. A push plate 242 is connected to the bottom end of the vertical rod 241, and the lower end face of the push plate 242 contacts the rotating part. A positioning hole is provided on the outer sleeve 25. When button 221 is pressed, the vertical rod 241 moves downward, the push plate 242 presses down to make the rotating part rotate, and drives the telescopic part to retract; at the same time, after the inner sleeve 24 is compressed or stretched relative to the outer sleeve 25 to the required state, button 221 is released, and the telescopic end of the spring pin 243 extends out and is locked into the positioning hole for fixation.

[0049] Optionally, as shown in Figures 1 and 2, to prevent dust from falling into the front wheel assembly 2 and affecting its performance, a first cover plate 13 is provided on the top of the housing 1. The first cover plate 13 is movably connected to the housing 1. When riding, the first cover plate 13 is opened to extend the telescopic mechanism; when storing, the telescopic mechanism is stored in the housing 1 and the first cover plate 13 is closed to the top of the housing 1.

[0050] Optionally, as shown in Figure 4, an auxiliary sleeve 261 is fitted around the main shaft 26 to provide some support for the main shaft 26, preventing damage to the main shaft 26 and thus ensuring the user's riding safety.

[0051] Optionally, the support frame 31 is designed as a U-shaped groove, the second lead screw motor 35 is installed in the U-shaped groove, and the second lead screw 351 is placed in the U-shaped groove, so as to avoid the second lead screw motor 35 and the second lead screw 351 and other components being completely exposed to the outside and contaminated by dust, thereby improving the operating effect.

[0052] Optionally, referring to Figures 2 and 11, since the overall width of the rear wheel is greater than the width of the support base 17, the opening of the box 1 for storing the rear wheel is larger. A second cover plate 14 is provided on the support base 17. When the second lead screw motor 35 drives the rear wheel to retract, the second cover plate 14 also retracts into the box 1, so that after the rear wheel enters the box 1, the part of the box 1 where the rear wheel enters and exits is in a closed state. This prevents dust from entering the rear wheel assembly 3 when the luggage box is stored for a long time, thus preventing it from affecting the luggage box's driving, extension and retraction functions.

[0053] As shown in Figures 1 and 13, the bottom of the housing 1 is equipped with front and rear casters 5, which are fixedly connected to the bottom of the housing 1 by a second vertical screw 51. A foot pedal 6 is mounted on the second vertical screw 51 connected to the front caster 5. In use, the foot pedal 6 rotates around the second vertical screw 51 until it is perpendicular to the housing 1; when stored, the foot pedal 6 rotates around the second vertical screw 51 until it is against the housing 1.

[0054] Example 2:

[0055] Referring to Figures 2, 3, 11, and 12, this embodiment provides a seat cushion assembly 4 as described in Embodiment 1. The seat cushion assembly 4 is disposed on the top of the housing 1. The top of the housing 1 is provided with a first assembly groove 15 and a second assembly groove 16. The first assembly groove 15 and the second assembly groove 16 are connected.

[0056] Specifically, the seat cushion assembly 4 includes a support cushion 41, a connecting plate 42, and a second slide 43. Referring to Figures 2, 3, and 11, the top of the support base 17 has an upper groove 411. The second slide 43 has a second sliding groove 431, and a second slider 432 is movably connected within the second sliding groove 431. The second slide 43 is mounted on the outside of the support frame 31. A third sliding groove is formed on the side wall of the second mounting groove 16, and a third slider is provided within the third sliding groove. The rear end of the support cushion 41 is hinged to the third slider, and the support cushion 41 is rotated along the hinge point. One end of the connecting plate 42 is movably connected to the front end of the upper groove 411, and the other end is connected to the second slider 432. When the support cushion 41 is retracted, it rotates to be embedded in the first mounting groove 15 and flush with the top of the housing 1. At this time, part of the connecting plate 42 is placed inside the upper groove 411, and the other part is embedded in the second mounting groove 16.

[0057] When the support pad 41 is in place, the support pad 41 is flipped over and moves along the third slide to the end of the third slide. At the same time, the end of the connecting rod 29 connected to the second slider 432 moves to the end of the second slide 431, forming a triangular frame state, which plays a certain role in stabilizing support. In addition, the support pad 41 extends the riding length, and the upward tilted state can provide a certain blocking effect to prevent the rider from slipping off.

[0058] When closed, as shown in Figure 2, the portion of the connecting plate 42 that fits into the upper groove 411 is relatively thin, and after being embedded in the upper groove 411, it is lower than the upper surface of the first support pad 41. This effectively prevents external objects from directly impacting the connection between the connecting plate 42 and the support pad 41, thus affecting the functionality of the support pad 41. The portion of the connecting plate 42 that fits into the second assembly groove 16 is flush with the upper surface of the housing 1, making the upper surface of the housing 1 relatively flat and improving the comfort of the user sitting on the housing 1.

[0059] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A rideable suitcase, characterized in that, The device includes a housing, a front wheel assembly, and a rear wheel assembly. The housing includes front and rear cavities located at both ends of a storage compartment. The front wheel assembly is located in the front cavity, and the rear wheel assembly is located in the rear cavity. The front wheel assembly includes an outer tube, a hollow main shaft, and a first wheel fork fitted with the front wheel. The first wheel fork is fixed to the bottom end of the main shaft. The outer tube and the main shaft are hinged together by a first lead screw motor, and the first lead screw with a first nut is placed inside the main shaft. The outer tube and the main shaft are respectively fixed to the front cavity by support seats. An ear seat is connected to the first nut through a guide groove on the main shaft. The ear seat is connected to the first wheel fork by a connecting rod. Driving the first lead screw motor causes the first nut to move the ear seat up and down, causing the front wheel to retract or extend out of the front cavity. The rear wheel assembly includes a support frame, a pull rod, a first slide, and a second wheel fork fitted with the rear wheel. The first slide is fixed to a vertical plate between the front and rear cavities. The first slide has a first slide groove with a first slider. The two ends of the pull rod are respectively connected to the... The vehicle includes a first slider and a rear wheel axle; a support frame is movably hinged to the rear cavity; a second lead screw motor is fixed to the support frame, and a second nut is attached to the second lead screw; the second nut is fixedly connected to the second wheel fork; driving the second lead screw motor causes the rear wheel to move up and down, while the first slider causes the rear wheel to move back and forth, causing the rear wheel to retract or extend out of the rear cavity; the vehicle also includes a seat assembly; the top of the housing has a communicating first and second assembly slots; the seat assembly includes a support pad, a connecting plate, and a second slide fixed to the support frame; the second slide has a second slide groove with a second slider; the second assembly slot has a third slide groove with a third slider; the support base is connected to the third slider; one end of the connecting plate is movably connected to the upper groove of the support base, and the other end is connected to the second slider; when retracted, the support base is embedded in the first assembly slot, a portion of the connecting plate is placed in the upper groove of the support base, and the other portion is embedded in the second assembly slot.

2. The rideable suitcase according to claim 1, characterized in that, The front wheel assembly also includes a telescopic mechanism; the telescopic mechanism includes a handle, a crossbeam with a button, and an inner sleeve; positioning components are respectively connected to both sides of the crossbeam; the positioning components are connected to the handle; the inner sleeve is fitted inside the outer sleeve; the crossbeam communicates with the inner sleeve; a vertical rod connected to a push plate is inserted into the inner sleeve and connected to the button; the inner sleeve is provided with a spring pin; the push plate contacts the rotating part of the spring pin; pressing the button, the push plate presses down on the rotating part, causing the telescopic part of the spring pin to retract, determining the telescopic height of the inner sleeve, and releasing the button, so that the telescopic part extends and engages with the positioning hole on the outer sleeve for fixation.

3. A rideable suitcase according to claim 2, characterized in that, The top of the box is movably connected to a first cover plate; when the telescopic mechanism retracts into the box, it flips and closes the first cover plate to the top of the box.

4. A rideable suitcase according to claim 1, characterized in that, An auxiliary sleeve is fitted around the outer periphery of the main shaft.

5. A rideable suitcase according to claim 1, characterized in that, The support frame is a U-shaped groove; the second lead screw motor is fixed in the U-shaped groove, and the second lead screw is placed in the U-shaped groove.

6. A rideable suitcase according to claim 1, characterized in that, The support frame is provided with a second cover plate; the second lead screw motor is driven to retract the rear wheel, the second cover plate is retracted, and the box is closed.

7. A rideable suitcase according to claim 1, characterized in that, The bottom of the box is connected to front and rear casters via a second vertical screw.

8. A rideable suitcase according to claim 7, characterized in that, It also includes a foot pedal; the foot pedal has a through hole; the second vertical screw of the front universal wheel passes through the through hole and is fixed to the bottom of the box; the foot pedal rotates around the second vertical screw of the front universal wheel and is stored in the foot pedal area of ​​the box.

9. A rideable suitcase according to claim 1, characterized in that, The portion of the connecting plate in the upper groove is lower than the upper surface of the support base; the portion of the connecting plate in the second assembly groove is flush with the upper surface of the housing.

Citation Information

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