Electric luggage case and use method thereof

Abstract

The invention belongs to the technical field of luggage cases, and particularly relates to an electric luggage case and a using method thereof.The electric luggage case comprises a case body, and the front end of the case body is provided with a containing cavity sunken towards the interior of the case body; the bottom telescopic mechanism is arranged at the bottom of the box body and comprises a telescopic rod, and the telescopic rod stretches out and draws back between a first limit position and a second limit position; the front vertical rod mechanism is arranged at one end, capable of extending out of the box body, of the telescopic rod; the decorative plate is arranged at the end, away from the containing cavity, of the vertical telescopic assembly, the outer contour of the decorative plate is matched with the inlet shape of the containing cavity, and when the electric luggage case is in a riding state, the front vertical rod mechanism and the decorative plate move out of the containing cavity along with the telescopic rod; when the electric luggage case is in a push-pull state, the front vertical rod mechanism retracts backwards into the accommodating cavity, and the accommodating cavity is sealed by the decorative plate. According to the luggage case, the front vertical rod mechanism is hidden in the containing cavity through the decorative plate, so that the luggage case is simple and smooth in appearance, the hooking risk of an exposed handle is avoided, and the practicability and the attractiveness are good.

Description

Technical Field

[0001] This invention belongs to the field of luggage technology, specifically an electric luggage and its usage method. Background Technology

[0002] With the popularization of the concept of smart travel, electric suitcases, as an innovative product integrating transportation and riding functions, are gradually gaining market attention. Traditional electric suitcases typically adopt an exposed upright and handle structure design, which provides support and control in riding mode, but often suffers from problems such as protruding structure, large space occupation, and untidy appearance in push mode. In addition, the upright and handle mechanisms usually cannot be completely hidden when stored, which easily leads to difficulties in carrying, easy bumps and knocks, and affects the overall aesthetics.

[0003] Therefore, there is an urgent need for an electric luggage solution that can flexibly switch between riding and pushing / pulling modes, while taking into account structural compactness, functionality, and aesthetics. Summary of the Invention

[0004] To address the problems mentioned above, this invention provides an electric suitcase and its usage method. By designing the bottom extension and retraction of the suitcase and the rear wheel as a linkage mechanism, the rear wheel can be automatically switched to a directional wheel while riding, which has the advantages of simple structure and convenient operation.

[0005] The first object of the present invention is to provide an electric suitcase, comprising:

[0006] The box has a recessed cavity at the front end.

[0007] The bottom telescopic mechanism is located at the bottom of the box and includes a base, a telescopic drive assembly, and a telescopic rod. The base has a mounting cavity, and the telescopic rod slides in the mounting cavity under the drive of the telescopic drive assembly. The telescopic rod extends and retracts between a first limit position and a second limit position.

[0008] The front upright mechanism is located at the end of the telescopic pole that can extend out of the box.

[0009] A decorative panel is located at the end of the front support mechanism away from the receiving cavity, and the outer contour of the decorative panel matches the shape of the entrance of the receiving cavity;

[0010] When the telescopic rod moves to the first extreme position, the electric luggage box is in riding mode, and the front upright mechanism and decorative panel move out of the accommodating cavity along with the telescopic rod.

[0011] When the telescopic rod moves to the second limit position, the electric luggage box is in a push-pull state, the front upright mechanism retracts into the receiving cavity, and the decorative panel closes the receiving cavity.

[0012] Furthermore, a caster wheel mechanism with a first state and a second state is provided at the bottom of the box away from the accommodating cavity;

[0013] When the universal wheel mechanism is in the first state, the electric luggage box is in the push-pull state, and the rear wheel in the universal wheel mechanism is a universal wheel;

[0014] When the swivel wheel mechanism is in the second state, the electric luggage box is in riding mode, and the rear wheel in the swivel wheel mechanism is a fixed wheel.

[0015] Furthermore, the caster mechanism includes a switching component for switching the caster mechanism between a first state and a second state.

[0016] Furthermore, the caster mechanism also includes a caster assembly, which includes a rear wheel and an axle fixed to the rear wheel; one end of the switching assembly is provided with a directional element for locking the rotation of the axle.

[0017] Furthermore, the switching component is linked with the bottom telescopic mechanism to switch the directional component between the locked position and the released position.

[0018] Furthermore, when the telescopic rod moves to the first extreme position, the directional component is in the locked position, which engages with the axle to restrict the rotation of the axle, making the rear wheel oriented; when the telescopic rod moves to the second extreme position, the directional component is in the released position, which separates from the axle, and the axle rotates freely, making the rear wheel omnidirectional.

[0019] Furthermore, the switching assembly is hinged to the bottom of the housing. The switching assembly includes a first end and a second end arranged opposite to each other. A directional component is provided at the first end, and a driven component that works in conjunction with the telescopic rod at the second end.

[0020] The telescopic movement of the telescopic rod is achieved by the driven component rotating around its hinge axis, which switches the directional component between the locked and released positions.

[0021] Furthermore, the switching assembly includes a swing arm, the middle of which is hinged to the bottom of the suitcase via a first hinge axis;

[0022] The driven member is located at one end of the swing arm, the directional member is located at the other end of the swing arm, and the axis of the first hinge shaft is parallel to the axis of the wheel axle.

[0023] Furthermore, the switching component is located above the bottom telescopic mechanism, which has a clearance groove. The driven member passes downward through the clearance groove and extends into the rear of the telescopic rod.

[0024] Furthermore, the driven member is a lever located at the second end, the axis of which is parallel to the axis of the wheel axle.

[0025] Furthermore, when the telescopic rod extends to the first limit position, the telescopic rod separates from the driven member, and the directional member remains in the locked position under the action of the reset element.

[0026] Furthermore, the reset element is a torsion spring installed on the switching assembly. After the telescopic rod separates from the driven member, the torsion spring applies a force to the directional member to lock the wheel axle.

[0027] Furthermore, the directional component is a limiting post, and a limiting hole is provided on the wheel axle for the limiting post to be inserted. When the directional component is in the locked position, the limiting post is inserted into the limiting hole.

[0028] Furthermore, the first end of the switching component is provided with a mounting groove, and a pin is provided in the mounting groove. The limiting post is rotatably connected to the pin through a bushing.

[0029] Furthermore, the caster wheel assembly also includes a wheel frame, on which a sleeve is formed for the wheel axle to pass through. The wheel axle is rotatably disposed in the sleeve, and a clearance hole communicating with a limiting hole is provided on the sleeve.

[0030] When locked, the free end of the limiting post passes through the clearance hole and then inserts into the limiting hole;

[0031] When released, the free end of the limiting post is located inside the relief hole.

[0032] Furthermore, the outer periphery of the clearance hole is provided with a guide protrusion that protrudes towards the switching component, and the guide protrusion has a positioning curved surface that fits against the outer peripheral surface of the bushing.

[0033] Furthermore, the front upright mechanism includes a vertical telescopic assembly and a handle assembly disposed on top of the vertical telescopic assembly, wherein:

[0034] The vertical telescopic assembly includes a second telescopic sleeve and a first telescopic sleeve that is slidably disposed within the second telescopic sleeve.

[0035] The handle assembly includes two symmetrically arranged handle bodies; the first telescopic sleeve is linked to the two handle bodies through a pull rod mechanism, so that the handle bodies automatically switch between the extended state and the retracted state.

[0036] Furthermore, the vertical telescopic assembly also includes a base sleeve fixed to the telescopic rod, a second telescopic sleeve that slides up and down inside the base sleeve, and a first telescopic sleeve that moves up and down under the drive of the drive assembly.

[0037] Furthermore, the handle assembly also includes a handle mounting base, which is fixed to the top of the second telescopic sleeve; two handle bodies are respectively hinged to both sides of the handle mounting base; one end of the lever mechanism is hinged to the handle body, and the other end is hinged to the top of the first telescopic sleeve.

[0038] A sliding groove for the lifting and lowering of the lever mechanism is formed between the handle mounting base and the second telescopic sleeve. The up and down movement of the first telescopic sleeve drives the handle body to switch between the retracted and extended states through the lever mechanism.

[0039] Furthermore, when the first telescopic sleeve moves upward to its top and abuts against the handle mounting seat, the pull rod mechanism drives the handle body to be in the unfolded state, and the first telescopic sleeve continues to move upward, driving the second telescopic sleeve to move upward synchronously.

[0040] When the first telescopic sleeve retracts downwards until the pull rod mechanism comes into contact with the second telescopic sleeve, the pull rod mechanism drives the handle body to be in a retracted state.

[0041] Furthermore, the drive assembly includes a drive element and a transmission screw. The output shaft of the drive element is connected to the transmission screw, and a first telescopic sleeve is fitted over the outside of the transmission screw and screwed to the transmission screw.

[0042] Furthermore, a protective shell is fitted around the outer periphery of the front upright mechanism, and the drive assembly is located inside the protective shell. The protective shell is connected to the side of the decorative panel facing the receiving cavity.

[0043] Furthermore, the shape of the protective shell is adapted to the shape of the accommodating cavity.

[0044] Furthermore, it also includes a battery case mounted on the housing, the battery case having a downwardly extending receiving groove for installing the battery, and a limiting component above the receiving groove for abutting against the top surface of the battery.

[0045] Furthermore, the limiting component includes a limiting block, and a limiting hole adapted to the limiting block is formed on the battery casing. The limiting block is movably disposed in the limiting hole, and when the limiting block extends out of the limiting hole, the bottom surface of the limiting block is in contact with the top surface of the battery.

[0046] Furthermore, the limiting assembly also includes a first spring, the two ends of which abut against the housing and the limiting block, respectively; the limiting block extends from the limiting hole to above the battery under the action of the first spring.

[0047] Furthermore, the bottom of the battery casing is also equipped with a lifting component for pushing the battery upward after the limiting component disengages from its contact with the battery.

[0048] Furthermore, the lifting assembly includes a second spring and a lifting rod. The lifting rod passes through the bottom of the battery casing and slides up and down. A protrusion is provided on the lower outer periphery of the lifting rod, which is located outside the battery casing. The second spring is fitted onto the lifting rod, and both ends of the second spring abut against the protrusion and the casing, respectively.

[0049] The second objective of this invention is to provide a method for using an electric suitcase, which employs any of the above-mentioned electric suitcases and is equipped with a button assembly. The method of use is performed according to the following steps:

[0050] Adjust the two swivel casters on both sides of the suitcase so that the rear wheels face the same direction as the front wheels;

[0051] The telescopic drive assembly is activated by controlling the button assembly. The telescopic rod moves from the second limit position to the first limit position. When the telescopic rod disengages from the driven member during the movement, the directional member rotates and engages with the wheel axle to lock the wheel axle, and the rear wheel is in a directional state.

[0052] After the telescopic rod moves to the first limit position, the vertical telescopic component extends upward through the button component, and at the same time the handle component automatically changes from the retracted state to the extended state;

[0053] Using the suitcase itself as a seat, hold the handle assembly with both hands to control the suitcase to move forward.

[0054] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0055] (1) The electric luggage of the present invention has a receiving cavity set at the front end of the luggage, which realizes the front upright mechanism to be stored in the independent receiving cavity at the front end of the luggage, and the front upright mechanism is hidden in the receiving cavity by the decorative panel, so that the appearance of the luggage is simple and smooth, avoiding the risk of snagging on the exposed handle, and has both practicality and aesthetics.

[0056] (2) The electric luggage box of the present invention includes a bottom telescopic mechanism and a universal wheel mechanism. The bottom telescopic mechanism includes a telescopic rod, which is linked to a switching component of the universal wheel mechanism. The first end of the switching component is provided with a directional member for locking the rotation of the wheel axle, and the second end is provided with a driven member that is linked and cooperates with the telescopic rod. The telescopic movement of the telescopic rod drives the switching component to rotate around its hinge axis through the driven member, so that the directional member switches between the locked position and the released position. Thus, by using the telescopic drive component of the telescopic rod as a power source and linking it with the switching component of the universal wheel mechanism, the automatic switching action of the universal wheel is realized. When it is necessary to change the riding state, the wheel axle locking state can be switched automatically and synchronously without the need for additional operation by the user, which significantly improves the safety and convenience of use. At the same time, it realizes a fast and smooth switching between riding and pushing modes.

[0057] (3) The electric luggage box of the present invention realizes the linkage between the vertical telescopic component and the handle component. When in riding mode, the drive component is activated to drive the first telescopic sleeve to move upward in a straight line. During the movement, the two sets of pull rod mechanisms pull the handle body on both sides respectively, so that the handle body, which was originally in the retracted state, rotates around the hinge point with the handle mounting seat and gradually changes to the unfolded state. When in non-riding mode, the drive component drives the first telescopic sleeve to move downward in a straight line, and pulls the handle body to rotate in the opposite direction through the pull rod mechanism, so that it changes from the unfolded state to the retracted state.

[0058] Simultaneously, when the first telescopic sleeve moves upward to its top and abuts against the handle mounting seat, the pull rod mechanism drives the handle body to be in the unfolded state, and the first telescopic sleeve continues to move upward, driving the second telescopic sleeve to move upward synchronously, so that the vertical telescopic component and the handle component are in the use state; when the first telescopic sleeve retracts downward to the pull rod mechanism and abuts against the second telescopic sleeve, the pull rod mechanism drives the handle body to be in the retracted state, and the first sleeve continues to move downward, driving the second sleeve to move downward synchronously, so that the vertical telescopic component and the handle component are in the stored state;

[0059] This achieves automatic extension and retraction of the handle body, while providing two-stage telescopic stroke, optimizing space and function. The two-stage telescopic strokes are handle extension and initial lifting, and simultaneous lifting of the first and second telescopic sleeves.

[0060] (4) The battery of the electric luggage box of the present invention achieves the effect of quick disassembly and quick fixation through the limiting component and the lifting component. Through the combination of the first spring and the limiting block, the limiting block can fit tightly with the battery, and the battery can be kept stable even in the vibration or impact environment. Through the cooperation of the second spring and the lifting rod, the second spring can use its own restoring force to lift the battery after the limiting block no longer limits the battery, so as to facilitate the user to take out the battery.

[0061] (5) The electric luggage of the present invention, through ingenious mechanical linkage design, almost replaces all mechanical operations that require manual intervention by the user, integrates multiple functions into a coherent action, greatly simplifies the operation logic, greatly optimizes the user experience of customers, and enhances the competitiveness of the product. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0063] Figure 1 This is a structural diagram of an electric luggage box in a riding state according to an embodiment of this application;

[0064] Figure 2 This is an external view of an electric suitcase in a push-pull state, according to an embodiment of this application.

[0065] Figure 3 A riding state diagram showing the assembly structure of the bottom telescopic mechanism, omnidirectional wheel assembly, vertical telescopic assembly, and handlebar assembly provided in an embodiment of this application;

[0066] Figure 4 A diagram showing the assembled structure of the bottom telescopic mechanism, caster wheel structure, vertical telescopic component, and handle assembly in a storage state according to an embodiment of this application;

[0067] Figure 5 An assembly structure diagram of the caster wheel assembly and the switching assembly provided in an embodiment of this application;

[0068] Figure 6 This is a structural diagram of a switching component provided in an embodiment of this application;

[0069] Figure 7 This is a structural diagram of a caster wheel assembly provided in one embodiment of this application;

[0070] Figure 8 An exploded view of the bottom telescopic mechanism provided in an embodiment of this application;

[0071] Figure 9 A cross-sectional structural view of a bottom telescopic mechanism provided in an embodiment of this application;

[0072] Figure 10 This is a partial internal structural diagram of the bottom telescopic mechanism provided in an embodiment of the present application, showing the telescopic rod extending to the first extreme position;

[0073] Figure 11 An assembly structure diagram (I) of the vertical telescopic component and handle component provided in an embodiment of this application.

[0074] Figure 12 Assembly structure diagram (II) of the vertical telescopic component and handle component provided in an embodiment of this application;

[0075] Figure 13 for Figure 10 A partial sectional view is provided to illustrate the positional relationship between the connecting groove, the connecting protrusion, and the limiting structure.

[0076] Figure 14 A schematic diagram of the handle body in a retracted state according to an embodiment of this application;

[0077] Figure 15 This is an assembly structure diagram of the battery casing and battery provided in one embodiment of this application;

[0078] Figure 16 for Figure 15 Structural diagram of the limiting component in the middle;

[0079] Figure 17 for Figure 15 Structural diagram of the lifting component in the middle;

[0080] Figure 18 for Figure 14 Structural diagram of the lifting rod in the middle;

[0081] Wherein: 10-box body, 1-bottom telescopic mechanism, 11-seat body, 111-mounting cavity, 112-slot, 113-leaving groove, 114-connecting plate, 12-first limiting part, 121-sleeve structure, 122-protruding edge structure, 123-clamping protrusion, 13-telescopic drive assembly, 131-drive rod, 132-slider, 14-telescopic rod, 141-accommodating cavity, 15-second limiting part, 151-limiting block, 16-bearing seat, 17-front wheel;

[0082] 2-Wheel mechanism, 21-Wheel assembly, 211-Rear wheel, 212-Wheel axle, 213-Wheel frame, 2131-Sleeve, 2132-Leaning hole, 2133-Guide protrusion, 22-Switching assembly, 221-First end, 222-Second end, 23-Directional component, 24-Driven component, 25-Swing arm, 26-First hinge shaft, 27-Torsion spring, 28-Pin, 29-Busset;

[0083] 3-Vertical telescopic component, 31-Base sleeve, 32-First telescopic sleeve, 33-Second telescopic sleeve, 34-Drive component, 35-Transmission screw, 36-Connecting protrusion, 37-Connecting groove, 38-Limiting structure;

[0084] 4-Handle assembly, 41-Handle mounting base, 411-Sleeve structure, 42-Handle body, 43-Linkage mechanism, 44-Arc-shaped pull rod, 45-Allowing space, 46-Slide groove, 47-Lug structure;

[0085] 5-Receiving cavity, 51-Decorative panel;

[0086] 6-Battery casing, 61-Receiving groove, 62-Limiting assembly, 621-Limiting block, 622-First spring, 623-Limiting hole, 624-First mounting base, 625-First guide rod, 63-Lifting assembly, 631-Second spring, 632-Lifting rod, 633-Protrusion, 635-Second mounting base, 637-Matching block, 64-Battery. Detailed Implementation

[0087] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0088] The following is in conjunction with the appendix Figure 1 To be continued Figure 18 The invention is described in detail with specific embodiments.

[0089] It should be noted beforehand that the descriptions of the front wheel, rear wheel, and other aspects related to front and rear directions in the embodiments of the present invention are all based on the direction of travel when the user rides the electric luggage box.

[0090] See Figures 1 to 18 The electric suitcase provided in this embodiment of the invention includes: a suitcase body 10, with a receiving cavity 5 recessed into the front end of the suitcase body 10; a bottom telescopic mechanism 1, disposed at the bottom of the suitcase body 10, including a telescopic rod 14, which telescopically extends between a first limit position and a second limit position; a front upright mechanism, disposed at one end of the telescopic rod 14 that extends out of the suitcase body 10; and a decorative panel 51, disposed at the end of the front upright mechanism away from the receiving cavity 5, the outer contour of the decorative panel 51 matching the entrance shape of the receiving cavity 5; when the telescopic rod 14 moves to the first limit position, the electric suitcase is in a riding state, and the front upright mechanism and the decorative panel 51 move out of the receiving cavity 5 along with the telescopic rod 14; when the telescopic rod 14 moves to the second limit position, the electric suitcase is in a push-pull state, the front upright mechanism retracts backward into the receiving cavity 5, and the decorative panel 51 closes the receiving cavity 5. It is understandable that when the suitcase is in the push-pull state, the front upright mechanism can be completely retracted into the accommodating cavity 5 of the suitcase body 10, and the entrance is tightly sealed by the decorative panel 51. This ensures that when the suitcase is used as a traditional suitcase, there are no protrusions or redundant structures on the outside, maintaining a smooth and complete integrated appearance that meets current aesthetic requirements. In the storage state, the accommodating cavity 5 provides a protected sealed space for the front upright mechanism, which also avoids the risk of damage to the upright mechanism due to collisions or scratches during transportation or handling. At the same time, the ingenious structural design of this application allows the suitcase to maintain the neat shape of a standard suitcase when it needs to be checked in or stored, making it easier to put into a corner of a vehicle, aircraft cargo hold, or home, saving storage space.

[0091] For details, please refer to Figure 1 and Figure 3The bottom of the suitcase 10, away from the accommodating cavity 5, is equipped with a swivel wheel mechanism 2, which has two states: a first state and a second state. In the first state, the electric suitcase is in a push-pull state, and the rear wheel 211 in the swivel wheel mechanism 2 is a swivel wheel. In the second state, the electric suitcase is in a riding state, and the rear wheel 211 in the swivel wheel mechanism 2 is a fixed wheel. This design allows the suitcase to adapt to different usage scenarios, achieving both extreme flexibility in pushing and reliable stability in riding, significantly improving the product's practicality, safety, and market competitiveness.

[0092] In some embodiments, the omnidirectional wheel mechanism 2 includes a switching component 22 for switching the omnidirectional wheel mechanism 2 between a first state and a second state. The switching component 22 is a bridge connecting the operating system and the actuator. It can be driven by a simple command (such as a user pressing a button) to automatically and accurately switch the rear wheel state. Of course, the switching component 22 can also be driven manually to switch the rear wheel 211 between the first state and the second state.

[0093] In some embodiments, the omnidirectional wheel mechanism 2 further includes an omnidirectional wheel assembly 21, which includes a rear wheel 211 and an axle 212 fixed to the rear wheel 211. One end of the switching assembly 22 is provided with a directional member 23 for locking the rotation of the axle 212. The switching assembly 22 is linked with the bottom telescopic mechanism 1, causing the directional member 23 to switch between a locked position and a released position. It can be understood that the switching assembly 22 and the bottom telescopic mechanism 1 receive instructions from the same central controller to achieve synchronous linkage. For example, when the user selects "riding mode", one instruction is triggered simultaneously: the telescopic rod 14 extends (the front upright mechanism rises) and the switching assembly 22 moves (the rear wheel 211 becomes a directional wheel); when the user switches from "riding mode" to "push-pull mode", one instruction is triggered simultaneously: the telescopic rod 14 retracts (the front upright mechanism retracts) and the switching assembly 22 moves (the rear wheel 211 becomes an omnidirectional wheel). The above-mentioned linkage design makes the operation of the entire system efficient and reliable, while simplifying the user's operating logic.

[0094] In some embodiments, see Figure 3The bottom telescopic mechanism 1 includes a seat 11, a telescopic drive assembly 13, and a telescopic rod 14. A mounting cavity 111 is formed on the seat 11. The telescopic drive assembly 13 is disposed within the mounting cavity 111 and includes a drive rod 131 and a slider 132. The telescopic rod 14 is slidably disposed within the mounting cavity 111 under the drive of the telescopic drive assembly 13. One end of the telescopic rod 14 within the mounting cavity 111 is connected to the slider 132, and the other end of the telescopic rod 14 extending out of the mounting cavity 111 is connected to a front wheel 17. When the drive rod 131 drives the slider 132 to slide within the mounting cavity 111, the slider 132 drives the telescopic rod 14 to slide along the mounting cavity 111. When the bottom telescopic mechanism is disposed at the bottom of the case, the seat 11 is used to connect with the body of the electric luggage case, providing support for the case. This application does not limit the specific structure of the seat 11; for example, the shape of the seat 11 can be a rectangular profile, with the cavity of the profile forming the mounting cavity. In addition, the telescopic drive assembly 13 of this application is a linear drive mechanism. For example, the telescopic drive assembly 13 can be a cylinder, a gear and rack mechanism, a worm gear mechanism, or a lead screw and nut mechanism, but is not limited to these.

[0095] The telescopic rod 14 extends and retracts between a first extreme position and a second extreme position. When the telescopic rod 14 extends to the first extreme position, the electric luggage box switches to riding mode; when the telescopic rod 14 retracts to the second extreme position, the electric luggage box is in the shape of a regular luggage box in non-riding mode. It can be seen that the front wheel 17 is located at the front end of the telescopic rod 14, and the rear wheel 211 is located at the rear of the telescopic rod 14. The movement function of the luggage box is achieved through the front wheel 17 and the rear wheel 211.

[0096] See Figures 5 to 7 The omnidirectional wheel mechanism 2 includes an omnidirectional wheel assembly 21 and a switching assembly 22. The omnidirectional wheel assembly 21 includes a rear wheel 211 and an axle 212. The rotation of the rear wheel 211 drives the axle 212 to rotate synchronously. The switching assembly 22 is hinged to the bottom of the luggage compartment. The switching assembly 22 includes a first end 221 and a second end 222 arranged opposite to each other. The first end 221 is provided with a directional member 23 for locking the rotation of the axle 212. It can be understood that the purpose of setting the directional member 23 is to cooperate with the axle 212 to restrict or release the axle 212. Therefore, the specific structure of the directional member 23 is not limited. For example, the directional member 23 can be a limit pin. The axle 212 is provided with a limit hole (through hole or blind hole) whose size and depth match the limit pin. The limit pin is inserted into the limit hole to restrict the axle 212. Alternatively, the directional member 23 can be a brake pad or a pawl. The rotation of the switching assembly 22 causes the directional member 23 to form mechanical interference with the axle 212 to achieve locking. The second end 222 of the switching component 22 is provided with a driven member 24 that is linked and cooperates with the telescopic rod 14. As a component that is in direct contact with the telescopic rod 14, the driven member 24 is responsible for the transmission of force. Therefore, its specific structure is not limited and can be a column lever, a block, etc.

[0097] The telescopic movement of the telescopic rod 14 is linked to the rotation of the switching assembly 22 around its hinge axis by the driven member 24, causing the directional member 23 to switch between the locked position and the released position. When the telescopic rod 14 moves to the first extreme position, the directional member 23 is in the locked position, which engages with the wheel axle 212 to restrict the rotation of the wheel axle 212, so that the rear wheel 211 is in a directional state. When the telescopic rod 14 moves to the second extreme position, the directional member 23 is in the released position, which separates from the wheel axle 212, and the wheel axle 212 rotates freely, so that the rear wheel 211 is in a omnidirectional state.

[0098] The telescopic rod 14 of this application is the bottom telescopic rod of the electric suitcase. The telescopic rod 14 is equipped with a vertical telescopic component 3, i.e., a front upright component, thereby realizing the linkage between the bottom telescopic structure of the electric suitcase and the omnidirectional wheel conversion, while simultaneously allowing the electric suitcase to switch between riding and non-riding modes. This results in a higher degree of integration and eliminates the need for an additional drive mechanism for the rear wheel 211 conversion. When the electric suitcase is switched to riding mode, the locking state of the wheel axle 212 can be automatically switched synchronously, significantly improving safety and ease of operation. More specifically, through the linkage of the telescopic rod 14, the driven member 24, the switching component 22, and the directional member 23, the linear motion of the telescopic rod 14 is effectively converted into the rotational motion of the switching component 22 via the driven member, and finally into the locking action of the directional member 23. Mode switching can be achieved without additional operation, and the force transmission path is clear and reliable, ensuring stable switching between the omnidirectional and directional states. It can be understood that the electric suitcase, as a rideable tool, has a separate telescopic mechanism at its bottom. This application cleverly utilizes the inherent driving force of the suitcase itself to achieve the switching of the omnidirectional wheels.

[0099] In some embodiments, see Figure 6 The switching assembly 22 includes a swing arm 25, the middle of which is hinged to the bottom of the luggage compartment via a first hinge shaft 26. A follower 24 is located at one end of the swing arm 25, and a guide 23 is located at the other end. The axis of the first hinge shaft 26 is parallel to the axis of the wheel axle 212. By specifically configuring the switching assembly 22 as a swing arm 25 with a central hinge, and the follower 24 and guide 23 located at both ends, a lever-like structure is formed. The telescopic rod 14 only needs to apply a small stroke to the follower 24 to cause the guide 23 to produce a relatively large displacement, thereby achieving separation from the wheel axle 212. Furthermore, by designing the axial direction of the first hinge shaft 26 to be parallel to the axis of the wheel axle 212, it is ensured that the swing arm 25 rotates in a plane perpendicular to the axis of the wheel axle 212, so that the movement trajectory of the guide 23 fixed at one end of the swing arm 25 can be controlled, achieving more accurate and reliable locking of the wheel axle 212.

[0100] Specifically, the middle part of the swing arm 25 forms a fixed fulcrum with the bottom of the suitcase via the first hinge shaft 26, constituting a lever structure centered on this fulcrum. When the telescopic rod 14 extends or retracts, its end contacts the driven member 24 at one end of the swing arm 25 and applies a pushing force, forcing the swing arm 25 to rotate around the first hinge shaft 26. Since the axis of the first hinge shaft 26 is parallel to the axis of the wheel axle 212, the plane of rotation of the swing arm 25 always remains perpendicular to the axis of the wheel axle 212, causing the directional member 23 at the other end of the swing arm 25 to undergo linear displacement along the radial direction of the wheel axle 212. During locking, the directional member 23 is precisely inserted into the limiting hole along the radial direction of the wheel axle 212, avoiding tilting and jamming caused by axis misalignment; during release, the directional member 23 exits the limiting hole along the same path, ensuring the repeatability of the action trajectory. It should be noted that the swing angle of the swing arm 25 in this application is small, and no large positioning offset will occur during locking.

[0101] In some embodiments, see Figure 3 A clearance groove 113 is formed on the seat 11. The switching component 22 is located above the seat 11, and the driven member 24 extends downward through the clearance groove 113 and into the rear end of the telescopic rod 14. It can be seen that the ingenious design of this application eliminates the need for a fixed connection between the telescopic rod 14 and the driven member 24, achieving linkage without interference. When the telescopic rod 14 extends, the mounting cavity 111 inside the seat 11 is in an empty state, allowing the driven member 24 to move within the cavity according to its own trajectory without interference with the internal components of the bottom telescopic mechanism. When the telescopic rod 14 retracts, its rear end contacts the driven member 24, forcing it to move backward until the telescopic rod 14 reaches its second limit position. The purpose of designing the clearance groove 113 is to achieve linkage between the driven member 24 and the telescopic rod 14; therefore, the specific shape and size of the clearance groove 113 are not limited.

[0102] In some embodiments, when the telescopic rod 14 extends to the first extreme position, the telescopic rod 14 separates from the driven member 24, and the directional member 23 remains in the locked position under the action of the reset element. The reset element is a torsion spring 27 disposed on the swing arm 25. After the telescopic rod 14 separates from the driven member 24, the torsion spring 27 applies a force to the directional member 23 to lock the axle 212. It can be understood that the telescopic movement of the telescopic rod 14 is usually designed with two extreme positions. In this application, the first extreme position is located at the end of the stroke when the telescopic rod 14 is fully extended, and the second extreme position is the end of the stroke when the telescopic rod 14 is fully retracted. It can be understood that the first extreme position is not the position at the instant when the telescopic rod 14 separates from the driven member 24. The telescopic rod 14 has already disengaged from the driven member 24 before moving to the first extreme position. That is, the driven member 24 is already in a free state when the telescopic rod 14 has not moved to the first extreme position. This application utilizes the coordinated action of the travel control and reset element of the telescopic rod 14 to achieve the maintenance and release of the locking state entirely through mechanical linkage, eliminating the need for manual intervention. For example, when riding the electric luggage compartment, the telescopic rod 14 automatically triggers the lock after extending from the compartment, preventing loss of directional control due to accidental contact during riding; when in the storage state, the telescopic rod 14 automatically unlocks upon retraction, eliminating wheel and axle wear caused by forgetting to operate the traditional mechanism.

[0103] In a preferred embodiment, a receiving space is provided on the swing arm 25 at the first hinge shaft 26. The torsion spring 27 is fitted onto the first hinge shaft 26 and located in the receiving space. The circumferential torque characteristic of the torsion spring 27 is used to achieve the reset function. After the telescopic rod 14 extends and the swing arm 25 rotates to the locked position, the elastic potential energy stored in the torsion spring 27 due to its torsional deformation will continuously apply a rebound torque to the swing arm 25. This torque is converted into a continuous and stable pressing force or holding force of the guide member 23 on the wheel axle 212. This ensures that the locked state is very stable and can effectively resist the vibration and impact generated when the rear wheel is working, prevent the guide member 23 from accidentally dislodging due to vibration, and greatly enhance the reliability of locking.

[0104] In the preferred embodiment, see Figures 5 to 7The directional component 23 serves as a limiting post, and the axle 212 has a limiting hole (not shown in the figure) for the limiting post to be inserted. When the directional component 23 is in the locked position, the limiting post is inserted into the limiting hole. To further ensure alignment accuracy, the first end of the swing arm 25 has a mounting groove, in which a pin 28 is installed. The limiting post is rotatably connected to the pin 28 via a bushing 29. The rotatable design of the limiting post makes it no longer a rigid fixed component, but a floating component with a small amount of play. Under the action of the torsion spring 27, the limiting post is pressed against the axle 212, and the limiting post can rotate slightly around the pin 28. During the process of the limiting post being inserted into the limiting hole, if there are minor manufacturing tolerances, assembly errors, or deformation of the axle due to force, the rigid structure may cause the limiting post to hit the outer wall of the axle 212 and fail to be inserted smoothly. This floating design allows the limiting post to adaptively adjust its angle to accommodate any alignment deviations that may occur when the swing arm 25 rotates, automatically aligning its axis with the axis of the limiting hole, thereby greatly improving the success rate and smoothness of insertion.

[0105] In some embodiments, see Figure 7 The omnidirectional wheel assembly 21 also includes a wheel frame 213, on which a sleeve 2131 is formed for the wheel axle 212 to pass through. The wheel axle 212 is rotatably disposed in the sleeve 2131. The sleeve 2131 has a clearance hole 2132 communicating with the limiting hole. In the locked position, the free end of the limiting post passes through the clearance hole 2132 and is inserted into the limiting hole. In the released position, the free end of the limiting post is located in the clearance hole 3132, but is disengaged from the limiting hole, allowing the wheel axle 212 to rotate freely. This structural design ensures that when the rear wheel 211 needs to be locked, there is no need to reposition, and the limiting post can be accurately inserted into the limiting hole. In an optional embodiment, a guide protrusion 2133 protruding towards the rocker arm 25 is provided on the outer periphery of the clearance hole 2132. The guide protrusion 2133 has a positioning curved surface that fits against the outer peripheral surface of the bushing 29. That is, the guide protrusion 2133 restricts the movement trajectory of the bushing 29 through physical boundaries to prevent the limiting post from radially shifting when it is inserted into the limiting hole.

[0106] In some embodiments, see Figure 3 , Figures 8 to 10 To facilitate the connection between the seat 11 and the electric luggage compartment, a connecting plate 114 is also formed on the seat 11. The connecting plate 114 is used to connect the electric luggage compartment. It can be understood that the connecting plate 114 is formed on the outer surface of the seat 11. The specific location, shape, and extension dimensions of the connecting plate 114 on the seat 11 can be set according to the specific mating environment between the seat 11 and the luggage compartment. For example, as... Figure 2 and Figure 7 As shown, in some embodiments, the connecting plates 114 are distributed on the left and right sides of the base 11.

[0107] In some embodiments, the telescopic rod 14 forms a receiving cavity 141, and the slider 132 is located within the receiving cavity 141. The drive rod 131 includes a threaded rod, and the slider 132 includes a threaded sleeve that mates with the threaded rod. A motor provides driving force to rotate the drive rod 131, thereby driving the slider 132 to slide along the drive rod 131. When the slider 132 is threadedly engaged with the drive rod 131, the drive rod 131 can be disposed within the mounting cavity 111 along its extension direction, with one end of the drive rod 131 rotatably disposed within the mounting cavity 111. For example, a bearing seat 16 is provided at one end of the mounting cavity 111, and one end of the drive rod 131 is mounted on the bearing seat 16 via a bearing. The other end of the drive rod 131 is a free end that extends into the receiving cavity 141 of the telescopic rod 14.

[0108] In some embodiments, a first limiting part 12 is provided on the side wall of the mounting cavity 111, and a second limiting part 15 is provided on the telescopic rod 14. The first limiting part 12 is used to abut against the second limiting part 15 to prevent the telescopic rod 14 from continuing to extend out of the mounting cavity 111. It can be understood that the second limiting part 15 is provided on the outer peripheral surface of the telescopic rod 14 and is located at the end where the telescopic rod 14 is connected to the slider 132. Correspondingly, the first limiting part 12 can be located near the end of the mounting cavity 111 where the telescopic rod 14 extends out of the mounting cavity 111. As the slider 132 drives the telescopic rod 14 to extend out of the mounting cavity 111, the second limiting part 15 gradually moves closer to the first limiting part 12 until the second limiting part 15 abuts against the first limiting part 12. Thus, through the cooperation of the first limiting part 12 and the second limiting part 15, the telescopic rod 14 is prevented from detaching from the mounting cavity 111, ensuring the stability and safety of the electric luggage case.

[0109] In some embodiments, the first limiting part 12 includes a sleeve structure 121 and a flange structure 122. The flange structure 122 is formed at one end of the sleeve structure 121. The sleeve structure 121 is embedded in the mounting cavity 111, and the flange structure 122 abuts against the end face of the base body 11. It can be understood that the sleeve structure 121 is embedded in the end of the mounting cavity 111 where the telescopic rod 14 extends. By abutting against the end face of the base body 11, the flange structure 122 can limit the embedded position of the sleeve structure 121 within the mounting cavity 111. Simultaneously, a threaded fastener can be provided at the flange structure 122 to fix the first limiting part 12 to the base body 11, facilitating the assembly and disassembly of the first limiting part 12.

[0110] Since the protruding edge structure 122 is formed at one end of the sleeve structure 121, connecting the protruding edge structure 122 to the base body 11 is equivalent to only fixing one end of the sleeve structure 121 to the base body 11. In order to further ensure the stability of the sleeve structure 121 in the mounting cavity 111, in some embodiments, the outer surface of the sleeve structure 121 may also be provided with a snap-fit ​​protrusion 123. Correspondingly, the base body 11 is provided with a slot 112 that cooperates with the snap-fit ​​protrusion 123.

[0111] In some embodiments, the inner surface of the sleeve structure 121 can be slidably contacted with the telescopic rod 14. For example, the inner surface of the sleeve structure 121 can form a sliding track that cooperates with the telescopic rod 14, that is, the cross-sectional shape of the cavity of the sleeve structure 121 is the same as the cross-sectional shape of the telescopic rod 14. By making the inner surface of the sleeve structure 121 slidably contacted with the telescopic rod 14, the sleeve structure 121 can provide circumferential support for the telescopic rod 14, ensuring the stability of the telescopic rod 14 sliding within the mounting cavity 111. At the same time, after the telescopic rod 14 extends out of the mounting cavity 111, the first limiting part 12 can provide stable support for the end of the telescopic rod 14 away from the front wheel 17.

[0112] In some embodiments, the second limiting part 15 may include a plurality of limiting blocks 151, which are distributed along the circumference of the telescopic rod 14. Simultaneously, the first limiting part 1 can also be distributed along the circumference of the mounting cavity 111. When the first limiting part 12 and the second limiting part 15 abut against each other, it is equivalent to multiple points of circumference limitation on the telescopic rod 14, ensuring the stability of the telescopic rod 14 when it extends to the first extreme position. Furthermore, it simplifies the structure of the second limiting part 15.

[0113] In some embodiments, the side surface of the limiting block 151 facing away from the telescopic rod 14 can also be slidably contacted with the side wall of the mounting cavity 111. In this way, the limiting block 151 can also provide circumferential support for the telescopic rod 14, further ensuring the stability of the telescopic rod 14 sliding within the mounting cavity 111.

[0114] In some embodiments, to reduce the friction between the slidable contact surfaces of the sleeve structure 121 and the telescopic rod 14, and between the second limiting part 14 and the slidable contact surface of the mounting cavity 111, a plurality of arc-shaped protrusions can be formed on the inner surface of the sleeve structure 121 and on the side surface of the second limiting part 15 facing the telescopic rod 14. These arc-shaped protrusions are distributed circumferentially along the telescopic rod 14 and extend axially along the telescopic rod 14. This effectively transforms the surface contact between them into a plurality of line contacts, thus reducing relative sliding friction.

[0115] In some embodiments, see Figures 11 to 13The front pole mechanism includes a vertical telescopic assembly 3 disposed at one end of the telescopic pole 14 extending out of the mounting cavity 111 and a handle assembly 4 disposed at the top of the vertical telescopic assembly 3, wherein: the vertical telescopic assembly 3 includes:

[0116] A base sleeve 31 is fixed to the telescopic rod 14; a second telescopic sleeve 33 is slidably disposed within the base sleeve 31; and a first telescopic sleeve 32 is slidably disposed within the second telescopic sleeve 33. The first telescopic sleeve 32 moves up and down under the drive of a drive assembly. The drive assembly includes a drive component 34 and a transmission screw 35. The output shaft of the drive component 34 is connected to the transmission screw 35 to drive the transmission screw 35 to rotate. The first telescopic sleeve 32 is sleeved on the outside of the transmission screw 35, and the rotation of the transmission screw 35 drives the first telescopic sleeve 32 to move up and down. In this embodiment, the drive component 34 is a servo motor, which has advantages such as high precision and fast response.

[0117] The handle assembly 4 includes: a handle mounting base 41, two handle bodies 42 and two sets of lever mechanisms 43. The handle mounting base 41 is fixed to the top of the second telescopic sleeve 33. The two handle bodies 42 are respectively hinged to both sides of the handle mounting base 41. One end of each set of lever mechanisms 43 is hinged to the handle body 42 and the other end is hinged to the top of the first telescopic sleeve 32.

[0118] A sliding groove 46 is formed between the handle mounting base 41 and the second telescopic sleeve 33 for the lifting and lowering of the lever mechanism 43. The up and down movement of the first telescopic sleeve 32 drives the handle body 42 to switch between the retracted state and the extended state through the lever mechanism 43.

[0119] When the first telescopic sleeve 32 moves upward to its top and abuts against the handle mounting seat 41, the pull rod mechanism 43 drives the handle body 42 to be in the unfolded state, and the first telescopic sleeve 32 continues to move upward, driving the second telescopic sleeve 33 to move upward synchronously; when the first telescopic sleeve 32 retracts downward to the point where the pull rod mechanism 43 abuts against the second telescopic sleeve 33, the pull rod mechanism 43 drives the handle body 42 to be in the retracted state.

[0120] The linkage process between the handle assembly 4 and the vertical telescopic assembly 3 of the present invention is as follows:

[0121] When in riding mode, the handlebar assembly 4 and the vertical telescopic assembly 3 need to be unfolded. At this time, the drive unit 34 is activated, and its output shaft drives the transmission screw 35 to rotate. Since the first telescopic sleeve 32 is threadedly connected to the transmission screw 35, the rotational motion of the transmission screw 35 is converted into the upward sliding of the first telescopic sleeve 32.

[0122] In the initial stage, when the first telescopic sleeve 32 moves upward, the two sets of pull rod mechanisms 43 pull the handle bodies 42 on both sides respectively, so that the handle bodies 42, which were originally in the retracted state, rotate around the hinge point with the handle mounting base 41 and gradually change to the unfolded state.

[0123] When the handle body 42 is fully extended, the first telescopic sleeve 32 continues to move upward. The top of the first telescopic sleeve 32 contacts the handle mounting seat 41, forcing the second telescopic sleeve 33 to move upward synchronously. This causes the extended handle assembly 4 to rise together with the second telescopic sleeve 33 until it reaches the preset working position, thereby raising the overall height of the handle assembly 4 and the vertical telescopic assembly 3.

[0124] When the luggage needs to be switched from riding mode to non-riding mode, the drive unit 34 drives the transmission screw 35 to rotate in the opposite direction. The first telescopic sleeve 32 slides in the opposite direction (downward), and the pull rod mechanism 43 pulls the handle body 42 to rotate in the opposite direction, changing it from the unfolded state to the folded state, completing the handle folding process. Subsequently, the pull rod mechanism 43 on the first telescopic sleeve 32 abuts against the second telescopic sleeve 33, causing the second telescopic sleeve 33 to move downward synchronously. Since the handle mounting seat 41 is fixed to the top of the second telescopic sleeve 33, the handle mounting seat 41 and the folded handle body 42 descend together with the second telescopic sleeve 33 until they return to the initial working position.

[0125] This application employs a nested sleeve structure (base sleeve 31, first telescopic sleeve 32, second telescopic sleeve 33), with the transmission screw 35 threadedly connected to the first telescopic sleeve 32, integrating drive, transmission, folding, and lifting functions into a coaxial layout. This significantly reduces the space occupied by the structure, making it particularly suitable for space-constrained scenarios such as electric luggage. Furthermore, the complete cycle of "unfolding + raising" and "folding + lowering" can be achieved simply by rotating the drive component, eliminating the need for additional manual operation or multiple drive source control. This single-power-source-driven multi-action design simplifies the user's operation process and reduces the design complexity of the control system.

[0126] In some specific embodiments, a sleeve structure 411 is formed on the handle mounting base 41. The sleeve structure 411 has first vertically extending grooves on both sides. The sleeve structure 411 is fitted onto the top of the first telescopic sleeve 32. The top side wall of the second telescopic sleeve 33 also has a second groove opposite to the first groove. A sliding groove 46 is formed between the upper side wall of the first groove and the lower side wall of the second groove to limit the lifting stroke of the lever mechanism 43. That is, it limits the lifting stroke of the first telescopic sleeve 32 alone. When the two handle bodies 42 are in the unfolded or retracted state, the first telescopic sleeve 32 and the second telescopic sleeve 33 begin to lift synchronously.

[0127] In some specific embodiments, see Figure 12 One of the inner wall of the base sleeve 31 and the outer wall of the second telescopic sleeve 33 is provided with a connecting groove 37, and the other is provided with a connecting protrusion 36 that mates with the connecting groove 37. The sliding engagement of the connecting groove 37 and the connecting protrusion 36 forms an axial guide track, constraining the movement trajectory of the second telescopic sleeve 33 relative to the base sleeve 31, preventing the second telescopic sleeve 33 from rotating circumferentially or shifting radially during lifting and lowering, and coordinating with the driving direction of the transmission screw 35 to ensure that the second telescopic sleeve 33 slides smoothly only in the vertical direction, reducing component wear caused by shaking. In a specific embodiment, two connecting grooves 37 are provided on the inner wall of the base sleeve 31 and are arranged symmetrically. Two connecting protrusions 36 are also provided on the outer wall of the second telescopic sleeve 33 and are arranged symmetrically, which can improve the stability of lifting and sliding. Both the connecting groove 37 and the connecting protrusion 36 are elongated and extend vertically. The elongated structure covers the entire vertical movement of the second telescopic sleeve 33, ensuring that the sleeve remains in the engagement and constraint of the groove and the protrusion throughout the entire movement.

[0128] In some specific embodiments, the inner wall of the second telescopic sleeve 33 is provided with an inwardly protruding limiting structure 38 to restrict the rotation of the first telescopic sleeve 32. By cooperating with the outer wall of the first telescopic sleeve 32, the limiting structure 38 can restrict the tendency of the first telescopic sleeve 32 to rotate synchronously with the transmission screw 35, ensuring that the rotational motion of the transmission screw 35 is completely converted into the sliding motion of the first telescopic sleeve 32 in the vertical direction.

[0129] In some specific embodiments, the pull rod mechanism 43 is an arc-shaped pull rod 44. The first end of the arc-shaped pull rod 44 is hinged to the handle body 42 via a hinge shaft, and the second end is hinged to the first telescopic sleeve 32 via a hinge shaft. In this embodiment, the arc-shaped pull rod 44 is in the shape of a quarter circle, which adapts to the 90° rotation trajectory of the handle body 42 and reduces interference. Optionally, radially outward lug structures 47 are symmetrically provided on the side wall of the first telescopic sleeve 32, and the second end of the arc-shaped pull rod 44 is hinged to the lug structures 47 via a hinge shaft.

[0130] Meanwhile, a clearance space 45 is provided on the side of the handle body 42 near the arc-shaped pull rod 44. The clearance space 45 on the handle body 42 is reserved for the movement trajectory of the arc-shaped pull rod 44 to avoid interference between the two.

[0131] In some embodiments, see Figure 1The vertical telescopic component 3 is externally fitted with a protective shell 52 that matches the internal space of the accommodating cavity 5. The drive component is located inside the protective shell 52, and the protective shell 52 is connected to the side of the decorative panel 51 facing the accommodating cavity. Encapsulating the drive component within the protective shell 52 forms an independent sealed or semi-sealed space, which can effectively isolate dust and other foreign objects from entering, prevent external dirt from corroding the circuit, and extend the service life of the front upright mechanism. At the same time, the protective shell 52 acts as an outer cover for the front upright mechanism, protecting and supporting its internal precision components. The height of the protective shell 52 in this application is lower than the height of the decorative panel 51. After the vertical telescopic component 3 is retracted and the handle body 42 is folded, they are both hidden behind the decorative panel 51. When the electric suitcase is not in riding mode, the vertical telescopic component 3 is retracted and the handle body 42 is folded up and then extended and retracted backward through the telescopic rod 14 at the bottom, moving both the vertical telescopic component 3 and the handle assembly 4 into the accommodating cavity 5. At the same time, the decorative panel 51 covers the accommodating cavity 5, so that the appearance of the suitcase forms a complete and smooth plane, which is no different from ordinary suitcases, and has both practicality and aesthetics.

[0132] In some embodiments, see Figures 15 to 18 The electric luggage case also includes a battery case 6 installed on the case body. The battery case 6 has a downwardly extending receiving groove 61 for installing the battery. A limiting component 62 is provided above the receiving groove 61. The limiting component 62 includes a limiting block 621 and a first spring 622 that abuts against the case body and the limiting block 621 respectively. The battery case 6 has a limiting hole 623 that is adapted to the limiting block 621. Under the action of the first spring 622, the limiting block 621 extends from the limiting hole 623 to the top of the battery 64, and the bottom surface of the limiting block 621 is in contact with the top surface of the battery 64.

[0133] When the battery 64 is located in the receiving slot 61, the first spring 622 is in a relaxed state, causing the bottom end of the limiting block 621 to abut against the top surface of the battery 64, thereby limiting the battery 64. When it is necessary to remove the battery 64, the limiting block 621 is pushed towards the side of the first spring 622, so that the limiting block 621 no longer obstructs the battery 64, making it convenient for the user to remove the battery 64 from the receiving slot 61. Through the combination of the first spring 622 and the limiting block 621, the limiting block 621 can fit tightly against the battery 64, maintaining the stability of the battery 64 even in vibration or impact environments. This design not only improves the fixing reliability of the battery 64, but also simplifies the installation and disassembly process, eliminating the need for tools and greatly improving the user experience.

[0134] The limiting assembly 62 also includes a first mounting base 624 and a first guide rod 625. The first mounting base 624 is fixedly mounted on the housing, and a first guide hole is provided on the first mounting base 624. One end of the first guide rod 625 slides within the first guide hole of the first mounting base 624, and the other end of the first guide rod 625 is connected to the limiting block 621. A first spring 622 is sleeved on the outer periphery of the first guide rod 625. The design of the first guide rod 625 effectively prevents the limiting block 621 from causing the first spring 622 to shift upward under the pressure of the battery 64, thereby ensuring that the first spring 622 is always in the correct direction of force and working state.

[0135] In some preferred embodiments, the upper surface of the limiting block 621 is inclined. This inclined design allows the user to install the battery 64 without manually pushing the limiting block 621 open. The user simply presses the battery 64 down, and the weight and shape of the battery 64 automatically move the limiting block 621 towards the side closest to the first spring 622, thus allowing the battery 64 to enter the receiving slot 61. This design reduces the complexity of manual operation, eliminating the need for manual pushing of the limiting block 621 and further enhancing the user experience.

[0136] Furthermore, a lifting assembly 63 is provided at the bottom of the battery casing 6. The lifting assembly 63 includes a second spring 631 and a lifting rod 632. The lifting rod 632 passes through the bottom of the battery casing 6 and slides up and down. A protrusion 633 is provided on the lower outer periphery of the lifting rod 632. The protrusion 633 is located outside the battery casing 6. The second spring 631 is fitted onto the lifting rod 632, and both ends of the second spring 631 abut against the protrusion 322 and the casing, respectively. The lifting assembly 63 is used to lift the battery 64 upward, so that after the user pushes the limiting block 621 to one side of the first spring 622, the limiting block 621 no longer limits the battery 64. The battery 64 can automatically rise under the action of the lifting assembly 63, making it convenient for the user to hold the top of the battery 64 and take it out.

[0137] In some embodiments, the bottom of the battery casing 6 has a through hole, through which the lifting rod 632 slides up and down. After the battery 64 is placed into the receiving slot 61, the protrusion 633 can drive the second spring 631 to compress when the lifting rod 632 moves downward. This allows the second spring 631 to lift the battery 64 using its own restoring force after the limiting block 621 no longer limits the battery 64. The lifting assembly 63 also includes a second mounting base 635, which is mounted on the luggage compartment. The two ends of the second spring 631 abut against the second mounting base 635 and the protrusion 633, respectively. The second mounting base 635 has a second guide hole for the lifting rod 632 to slide.

[0138] In a preferred embodiment, a mating block 637 is provided on the outer periphery of one end of the lifting rod 632 located inside the battery casing 6, and the mating block 637 fits against the bottom end of the battery 64. That is, the shape of the mating block 637 depends on the shape of the bottom of the battery 64, and the provision of the mating block 637 can increase the contact area between the lifting rod 632 and the battery 64, thereby providing stable support for the battery 64 by the lifting rod 632.

[0139] In some embodiments, the receiving groove 61 is narrower at the bottom and wider at the top, with the inner sidewall of the bottom end of the receiving groove 61 fitting against the outer periphery of the bottom of the battery 64. Because the upper part of the receiving groove 61 is wider, the battery 64 can be placed into the receiving groove 61 more easily when it is inserted. The lower part of the receiving groove 61 is narrower, and the inner sidewall of the receiving groove 61 fits against the outer periphery of the bottom of the battery 64, which can limit the battery 64 by using the groove wall of the receiving groove 61, preventing the battery 64 from shaking under the action of external force.

[0140] The present invention also provides a method for using an electric suitcase, which employs any of the above-mentioned electric suitcases and is equipped with a button assembly. The method of use is performed according to the following steps:

[0141] Adjust the two rear wheels 211 on both sides of the luggage compartment so that the rear wheels 211 face the same direction as the front wheels 17;

[0142] The telescopic drive assembly 13 is activated by the button assembly, and the telescopic rod 14 moves from the second limit position to the first limit position. When the telescopic rod 14 disengages from the driven member 24 during the movement, the directional member 23 rotates and cooperates with the wheel axle 212 to lock the wheel axle 212, and the rear wheel 211 is in a directional state.

[0143] After the telescopic rod 14 moves to the first extreme position, the vertical telescopic component 3 is extended upward by controlling the button component, and at the same time the handle component 4 automatically changes from the retracted state to the extended state.

[0144] Using the suitcase itself as a seat, hold the handle assembly 4 with both hands to control the suitcase to move forward.

[0145] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the nature and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention.

Claims

1. An electric suitcase, characterized in that, include: The box body has a receiving cavity recessed into the front end of the box body; A bottom telescopic mechanism is provided at the bottom of the box body, including a base, a telescopic drive assembly, and a telescopic rod. The base has a mounting cavity, and the telescopic rod is slidably disposed in the mounting cavity under the drive of the telescopic drive assembly. The telescopic rod extends and retracts between a first limit position and a second limit position. A front support pole mechanism is provided at one end of the telescopic pole that can extend out of the housing; A decorative panel is disposed at the end of the front support mechanism away from the receiving cavity, and the outer contour of the decorative panel matches the inlet shape of the receiving cavity; When the telescopic rod moves to the first extreme position, the electric luggage box is in riding mode, and the front upright mechanism and decorative panel move out of the accommodating cavity along with the telescopic rod; When the telescopic rod moves to the second limit position, the electric luggage box is in a push-pull state, the front upright mechanism retracts backward into the receiving cavity, and the decorative panel closes the receiving cavity.

2. The electric suitcase according to claim 1, characterized in that, The bottom of the housing, away from the accommodating cavity, is provided with a caster wheel mechanism including a first state and a second state. When the universal wheel mechanism is in the first state, the electric luggage box is in a push-pull state, and the rear wheel in the universal wheel mechanism is a universal wheel; When the omnidirectional wheel mechanism is in the second state, the electric luggage box is in riding mode, and the rear wheel in the omnidirectional wheel mechanism is a directional wheel.

3. The electric suitcase according to claim 2, characterized in that, The caster wheel mechanism includes a switching component for switching the caster wheel mechanism between a first state and a second state.

4. The electric suitcase according to claim 3, characterized in that, The omnidirectional wheel mechanism further includes an omnidirectional wheel assembly, which includes a rear wheel and an axle fixed to the rear wheel; one end of the switching assembly is provided with a directional member for locking the rotation of the axle.

5. The electric suitcase according to claim 4, characterized in that, The switching component is linked to the bottom telescopic mechanism to switch the directional component between the locked position and the released position.

6. The electric suitcase according to claim 5, characterized in that, When the telescopic rod moves to the first extreme position, the directional member is in the locked position, which engages with the axle to restrict the rotation of the axle, so that the rear wheel is in a directional state; when the telescopic rod moves to the second extreme position, the directional member is in the released position, which separates from the axle, and the axle rotates freely, so that the rear wheel is in a omnidirectional state.

7. The electric suitcase according to claim 6, characterized in that, The switching assembly is hinged to the bottom of the housing. The switching assembly includes a first end and a second end that are arranged opposite to each other. The directional member is arranged at the first end, and the second end is provided with a driven member that is linked and cooperates with the telescopic rod. The telescopic movement of the telescopic rod is linked by the driven member to rotate the switching component around its hinge axis, so that the directional member switches between the locked position and the released position.

8. The electric suitcase according to claim 7, characterized in that, The switching assembly includes a swing arm, the middle of which is hinged to the bottom of the suitcase via a first hinge axis; The driven member is disposed at one end of the swing arm, the directional member is disposed at the other end of the swing arm, and the axis of the first hinge shaft is parallel to the axis of the wheel axle.

9. The electric suitcase according to claim 7, characterized in that, The switching component is located above the bottom telescopic mechanism, which has a clearance groove. The driven member passes downward through the clearance groove and extends into the rear of the telescopic rod.

10. The electric suitcase according to claim 7, characterized in that, The driven member is a lever disposed at the second end, and the axis of the lever is parallel to the axis of the wheel axle.

11. The electric suitcase according to claim 7, characterized in that, When the telescopic rod extends to the first limit position, the telescopic rod separates from the driven member, and the directional member remains in the locked position under the action of the reset element.

12. The electric suitcase according to claim 11, characterized in that, The reset element is a torsion spring disposed on the switching assembly. After the telescopic rod separates from the driven member, the torsion spring applies a force to the directional member so that the directional member locks the axle.

13. The electric luggage case according to any one of claims 5-12, characterized in that, The directional component is a limiting post, and the wheel axle has a limiting hole for the limiting post to be inserted. When the directional component is in the locked position, the limiting post is inserted into the limiting hole.

14. The electric suitcase according to claim 13, characterized in that, The first end of the switching component is provided with a mounting groove, and a pin is provided in the mounting groove. The limiting post is rotatably connected to the pin through a bushing.

15. The electric suitcase according to claim 14, characterized in that, The universal wheel assembly also includes a wheel frame, on which a sleeve is formed for the wheel axle to pass through. The wheel axle is rotatably disposed in the sleeve, and a clearance hole communicating with the limiting hole is provided on the sleeve. When locked, the free end of the limiting post passes through the clearance hole and then inserts into the limiting hole; When in the release position, the free end of the limiting post is located inside the clearance hole.

16. The electric suitcase according to claim 15, characterized in that, The outer periphery of the clearance hole is provided with a guide protrusion that protrudes towards the switching component, and the guide protrusion has a positioning curved surface that fits against the outer peripheral surface of the bushing.

17. The electric suitcase according to claim 1, characterized in that, The front support mechanism includes a vertical telescopic assembly and a handle assembly disposed on the top of the vertical telescopic assembly, wherein: The vertical telescopic component includes a second telescopic sleeve and a first telescopic sleeve that is slidably disposed within the second telescopic sleeve. The handle assembly includes two symmetrically arranged handle bodies; the first telescopic sleeve is linked to the two handle bodies through a pull rod mechanism, so that the handle bodies automatically switch between an extended state and a retracted state.

18. The electric suitcase according to claim 17, characterized in that, The vertical telescopic assembly also includes a base sleeve fixed to the telescopic rod, the second telescopic sleeve being slidably disposed within the base sleeve, and the first telescopic sleeve moving up and down under the drive of the drive assembly.

19. The electric suitcase according to claim 18, characterized in that, The handle assembly further includes a handle mounting base, which is fixed to the top of the second telescopic sleeve; two handle bodies are respectively hinged to both sides of the handle mounting base; one end of the pull rod mechanism is hinged to the handle body, and the other end is hinged to the top of the first telescopic sleeve. The handle mounting base and the second telescopic sleeve form a sliding groove for the lifting and lowering of the lever mechanism. The up and down movement of the first telescopic sleeve drives the handle body to switch between a retracted state and an extended state through the lever mechanism.

20. The electric suitcase according to claim 19, characterized in that, When the first telescopic sleeve moves upward to its top and abuts against the handle mounting seat, the pull rod mechanism drives the handle body to be in the unfolded state, and the first telescopic sleeve continues to move upward, driving the second telescopic sleeve to move upward synchronously. When the first telescopic sleeve retracts downwards until the pull rod mechanism abuts against the second telescopic sleeve, the pull rod mechanism drives the handle body to be in a retracted state.

21. The electric suitcase according to claim 18, characterized in that, The drive assembly includes a drive element and a transmission screw. The output shaft of the drive element is connected to the transmission screw. The first telescopic sleeve is sleeved on the outside of the transmission screw and screwed to the transmission screw.

22. The electric suitcase according to claim 18, characterized in that, The outer periphery of the front upright mechanism is also fitted with a protective shell, the drive assembly is located inside the protective shell, and the protective shell is connected to the side of the decorative panel facing the accommodating cavity.

23. The electric suitcase according to claim 22, characterized in that, The shape of the protective shell is adapted to the shape of the accommodating cavity.

24. The electric suitcase according to claim 1, characterized in that, It also includes a battery case mounted on the housing, the battery case having a downwardly extending receiving groove for installing a battery, and a limiting component provided above the receiving groove for abutting against the top surface of the battery.

25. The electric suitcase according to claim 24, characterized in that, The limiting component includes a limiting block, and a limiting hole adapted to the limiting block is formed on the battery casing. The limiting block is movably disposed in the limiting hole. When the limiting block extends out of the limiting hole, the bottom surface of the limiting block is in contact with the top surface of the battery.

26. The electric suitcase according to claim 25, characterized in that, The limiting assembly also includes a first spring, the two ends of which abut against the housing and the limiting block, respectively; the limiting block extends from the limiting hole to above the battery under the action of the first spring.

27. The electric suitcase according to claim 24, characterized in that, The bottom of the battery casing is also provided with a lifting component for pushing the battery upward after the limiting component disengages from the battery.

28. The electric suitcase according to claim 27, characterized in that, The lifting assembly includes a second spring and a lifting rod. The lifting rod passes through the bottom of the battery casing and slides up and down. A protrusion is provided on the lower outer periphery of the lifting rod. The protrusion is located outside the battery casing. The second spring is fitted on the lifting rod, and both ends of the second spring abut against the protrusion and the casing, respectively.

29. A method of using an electric suitcase, characterized in that, The electric luggage box according to any one of claims 1-28, wherein the electric luggage box is provided with a button assembly, and the method of use is performed according to the following steps: Adjust the two rear wheels on both sides of the suitcase so that the rear wheels face the same direction as the front wheels; The telescopic drive assembly is activated by controlling the button assembly. The telescopic rod moves from the second limit position to the first limit position. When the telescopic rod disengages from the driven member during the movement, the directional member rotates and engages with the wheel axle to lock the wheel axle, and the rear wheel is in a directional state. After the telescopic rod moves to the first limit position, the vertical telescopic component extends upward through the button component, and at the same time the handle component automatically changes from the retracted state to the extended state; Using the suitcase itself as a seat, hold the handle assembly with both hands to control the suitcase to move forward.

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