Handle linkage folding structure and electric luggage

Abstract

This utility model belongs to the field of luggage technology, and particularly relates to a handle-linked folding structure and an electric luggage. It includes: a base sleeve; a drive device fixed to the base sleeve; a vertical pole assembly slidably disposed within the base sleeve; the vertical pole assembly includes a first telescopic sleeve and a second telescopic sleeve, the first telescopic sleeve sliding within the base sleeve and being connected to the drive device; the second telescopic sleeve being sleeved between the first telescopic sleeve and the base sleeve and slidably connected to the first telescopic sleeve; a handle assembly disposed at the top of the vertical pole assembly; wherein the first telescopic sleeve has a first position, a second position, and a third position; when the first telescopic sleeve is in the first position, the handle assembly is in a retracted state; when the first telescopic sleeve moves upward to the second position, the handle assembly is in an unfolded state; when the first telescopic sleeve continues to move upward to the third position, it drives the second telescopic sleeve to move upward synchronously.

Description

Technical Field

[0001] This utility model belongs to the field of luggage technology, and in particular relates to a handle-linked folding structure and an electric luggage. Background Technology

[0002] In the field of portable devices such as electric suitcases, the handle, as a core component of human-computer interaction, directly affects the convenience of storage and the comfort of use of the device through its folding and lifting functions. Therefore, stringent requirements are placed on the integration, automation, and spatial adaptability of the handle linkage folding structure.

[0003] The handle structure of existing portable devices generally suffers from functional fragmentation and insufficient coordination: most products require a step-by-step operation of "manually folding the handle + independently driving the lifting mechanism" to switch states. For example, some electric suitcases require the handle to be manually folded inward to a preset angle before the independent lifting mechanism is activated to adjust the handle height. This not only makes the operation steps cumbersome but also requires the user to apply additional force, failing to meet the needs for automated and convenient use.

[0004] Based on this, the present invention provides a novel handle-linked folding structure and an electric luggage case to overcome the above-mentioned defects. Summary of the Invention

[0005] One objective of this invention is to provide a handle-linked folding structure. This handle-linked folding structure controls the linear movement of the first telescopic sleeve through a drive source, i.e., a drive device, and uses it to trigger different functions at different stroke positions, thereby sequentially realizing the automated linkage of "folded state" → "unfolded state" → "overall lifting". This greatly simplifies the overall structure and reduces the number of parts, manufacturing costs, assembly complexity, and failure rate.

[0006] This utility model adopts the following technical solution: a handle-linked folding structure, comprising:

[0007] Base sleeve fittings;

[0008] The driving device is fixed on the base sleeve.

[0009] The upright assembly is slidably disposed within the base sleeve; it includes a first telescopic sleeve and a second telescopic sleeve, the first telescopic sleeve is slidably disposed within the base sleeve and is connected to the driving device; the second telescopic sleeve is sleeved between the first telescopic sleeve and the base sleeve and is slidably connected to the first telescopic sleeve.

[0010] A handle assembly is located at the top of the upright assembly;

[0011] The first telescopic sleeve has a first position, a second position, and a third position;

[0012] When the first telescopic sleeve is in the first position, the handle assembly is in a retracted state;

[0013] When the first telescopic sleeve moves upward to the second position, the handle assembly is in an unfolded state;

[0014] When the first telescopic sleeve continues to move upward to the third position, it drives the second telescopic sleeve to move upward synchronously.

[0015] Furthermore, the handle assembly includes:

[0016] The handle mounting base is fixedly installed on the top end of the second telescopic sleeve;

[0017] Two handle bodies are respectively hinged to both sides of the handle mounting base;

[0018] Two sets of lever mechanisms, one end of each lever mechanism is hinged to the handle body, and the other end is hinged to the top area of ​​the first telescopic sleeve.

[0019] Furthermore, the top region of the first telescopic sleeve is provided with a protruding structure;

[0020] A groove is formed between the handle mounting base and the top end of the second telescopic sleeve;

[0021] The protruding structure at the top region of the first telescopic sleeve is located within the groove;

[0022] When the protruding structure at the top of the first telescopic sleeve slides in the groove, the handle body is switched between the retracted and extended states via the pull rod mechanism.

[0023] Furthermore, the protruding structure in the top region of the first telescopic sleeve is a lug structure extending along the second direction on both sides.

[0024] Furthermore, the pull rod mechanism is an arc-shaped pull rod, the first end of which is hinged to the handle body via a hinge shaft, and the second end of which is hinged to the lug structure via a hinge shaft.

[0025] Furthermore, the driving device includes a drive motor and a transmission screw connected to it; the transmission screw is rotatably mounted on the base sleeve, and the first telescopic sleeve is sleeved on the transmission screw and threadedly connected to it.

[0026] Furthermore, one of the inner wall of the base sleeve and the outer wall of the second telescopic sleeve is provided with a connecting groove, and the other is provided with a connecting protrusion that mates with the connecting groove;

[0027] And / or the inner wall of the second telescopic sleeve is provided with an inwardly protruding limiting structure to restrict the rotation of the first telescopic sleeve.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] In this utility model, the handle linkage folding structure controls the linear movement of the first telescopic sleeve through a drive source, i.e., a drive device, and uses it to trigger different functions at different stroke positions, thereby sequentially realizing the automated linkage of "folded state" → "unfolded state" → "overall lifting", which greatly simplifies the overall structure and reduces the number of parts, manufacturing costs, assembly complexity and failure rate.

[0030] Meanwhile, the multi-level nested structure of base sleeve → second telescopic sleeve → first telescopic sleeve integrates the driving, transmission, folding and lifting functions into a coaxial layout, which significantly reduces the space occupied by the structure. It is especially suitable for scenarios with limited installation space (such as electric luggage), making the appearance simple, compact and beautiful.

[0031] The second objective of this utility model is to provide an electric suitcase that includes the aforementioned handle-linked folding structure.

[0032] Furthermore, a base is provided at the bottom of the base sleeve in the handle linkage folding structure, and foot pedals are provided on both sides of the base.

[0033] Furthermore, the foot pedal is linked to the upright assembly, allowing the foot pedal to switch between a stowed state and an unfolded state. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the handle body in the unfolded state in a specific embodiment of the handle linkage folding structure of this utility model. Figure 1 ;

[0036] Figure 2 This is a schematic diagram of the handle body in a folded state in a specific embodiment of the handle linkage folding structure of this utility model;

[0037] Figure 3 for Figure 1 A sectional view;

[0038] Figure 4 for Figure 1 A partial sectional view to show the structure of the connecting groove, connecting protrusion and limiting structure;

[0039] Figure 5 This is a schematic diagram of the handle body in the unfolded state in a specific embodiment of the handle linkage folding structure of this utility model. Figure 2 ;

[0040] Figure 6 In order to be in Figure 1 A schematic diagram of the structure after adding foot pedals to the basic design;

[0041] The components include: base sleeve 1, connecting groove 10, base 11, foot pedal 12; drive device 2; transmission screw 3; first telescopic sleeve 4; second telescopic sleeve 5, connecting protrusion 51, limiting structure 52; handle mounting seat 6, sliding groove 60; handle body 7; pull rod mechanism 8, arc pull rod 80, clearance space 81; and protrusion structure 9. Detailed Implementation

[0042] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 The present invention will be described in detail with reference to specific embodiments:

[0044] like Figures 1 to 5 As shown, this utility model provides a handle-linked folding structure, which includes:

[0045] The base sleeve 1 extends in the first direction;

[0046] Drive device 2 is fixedly installed on the base sleeve 1, and drive device 2 has an output shaft;

[0047] The upright assembly is slidably disposed within the base sleeve 1; the upright assembly includes a first telescopic sleeve 4 and a second telescopic sleeve 5, the first telescopic sleeve 4 is slidably disposed within the base sleeve 1 and is drively connected to the output shaft of the driving device 2 to drive the first telescopic sleeve 4 to slide in a first direction; the second telescopic sleeve 5 is sleeved between the first telescopic sleeve 4 and the base sleeve 1 and is slidably connected to the first telescopic sleeve 4, and the second telescopic sleeve 5 can slide relative to the base sleeve 1 in the first direction.

[0048] A handle assembly is located at the top of the upright assembly;

[0049] The first telescopic sleeve 4 has a first position, a second position and a third position;

[0050] When the first telescopic sleeve 4 is in the first position, the handle assembly is in a retracted state;

[0051] When the first telescopic sleeve 4 moves upward to the second position, the handle assembly is in an unfolded state;

[0052] When the first telescopic sleeve 4 continues to move upward to the third position, it drives the second telescopic sleeve 5 to move upward synchronously.

[0053] It should be further explained that in this embodiment, the first position of the first telescopic sleeve 4 refers to the first telescopic sleeve 4 being at its lowest point, such as... Figure 2 As shown, the handle assembly is in a retracted state at this time. The second position refers to the first telescopic sleeve 4 sliding upward a certain distance from the first position. During the sliding process, the handle assembly gradually opens until it reaches the second position, where it is fully extended. Simultaneously, the second telescopic sleeve 5 remains stationary within the base sleeve 1. The third position refers to the first telescopic sleeve 4 continuing to slide upward a certain distance from the second position. During this sliding process, the second telescopic sleeve 5 is driven to move upward synchronously, achieving an overall height increase. When the first telescopic sleeve 4 reaches the third position, the upright assembly reaches its highest position, as shown... Figure 1 As shown.

[0054] In this utility model, the handle linkage folding structure controls the linear movement of the first telescopic sleeve 4 through a drive source, namely the drive device 2, and uses it to trigger different functions at different stroke positions, thereby realizing the automated linkage of "folded state" → "unfolded state" → "overall lifting" in sequence, which greatly simplifies the overall structure and reduces the number of parts, manufacturing costs, assembly complexity and failure rate.

[0055] Meanwhile, the multi-level nested structure of base sleeve 1 → second telescopic sleeve 5 → first telescopic sleeve 4 integrates the driving, transmission, folding and lifting functions into a coaxial layout, which significantly reduces the space occupied by the structure. It is especially suitable for scenarios with limited installation space (such as electric luggage), making the appearance simple, compact and beautiful.

[0056] Furthermore, in some specific embodiments, the handle assembly includes:

[0057] The handle mounting base 6 is fixedly installed on the top end of the second telescopic sleeve 5;

[0058] Two handle bodies 7 are respectively hinged to both sides of the handle mounting base 6 and can switch between a folded state and an unfolded state; when the handle body 7 is close to the first direction, the handle body 7 is in the folded state, and when the handle body 7 is in the second direction, the handle body 7 is in the unfolded state.

[0059] Two sets of pull rod mechanisms 8, one end of each set of pull rod mechanisms 8 is hinged to the handle body 7, and the other end is hinged to the top area of ​​the first telescopic sleeve 4.

[0060] During operation, the first telescopic sleeve 4 rises in the first direction, and the two sets of pull rod mechanisms 8 pull the handle bodies 7 on both sides respectively, so that the handle bodies 7, which were originally in the retracted state, rotate around the hinge point with the handle mounting seat 6 and gradually change to the unfolded state.

[0061] The first telescopic sleeve 4 slides in the opposite direction (downward) along the first direction, and the handle body 7 is pulled in the opposite direction by the pull rod mechanism 8, so that it changes from the unfolded state to the retracted state, thus completing the handle folding process.

[0062] In some more specific embodiments, the top region of the first telescopic sleeve 4 is provided with a protrusion structure 9, which is used to cooperate with the second telescopic sleeve 5 to push the second telescopic sleeve 5 to slide relative to the base sleeve 1 in a first direction.

[0063] A groove 60 is formed between the handle mounting base 6 and the top end of the second telescopic sleeve 5;

[0064] The protruding structure 9 in the top region of the first telescopic sleeve 4 is located within the groove 60;

[0065] When the protruding structure 9 in the top area of ​​the first telescopic sleeve 4 slides in the groove 60, the handle body 7 is driven to switch between the retracted state and the extended state through the pull rod mechanism 8.

[0066] During the sliding phase of the protruding structure 9 within the slide groove 60, the handle body 7 is only moved to change state via the pull rod mechanism 8. At this time, the second telescopic sleeve 5 remains stationary because it is not pushed by the protruding structure 9. Only after the protruding structure 9 slides to the end of the slide groove can the second telescopic sleeve 5 be moved up and down. This sequential partitioning of "handle posture change first, then upright assembly lifting and lowering" completely avoids the interference between the two actions, ensuring that the handle unfolding / retracting and height adjustment are carried out in an orderly manner, and improving the reliability of the mechanism operation.

[0067] Meanwhile, the cooperation between the slide groove 60 and the protruding structure 9 also provides additional support for the axial movement of the first telescopic sleeve 4, reducing the swaying of the upright assembly and improving the overall structural stability.

[0068] The general working principle of the handle-linked folding structure in this utility model is as follows:

[0069] When the handle needs to be unfolded, the drive device 2 is activated, and its output shaft drives the first telescopic sleeve 4 to slide in a straight line in the first direction (upward).

[0070] In the initial stage, the protruding structure 9 in the top area of ​​the first telescopic sleeve 4 is placed in the slide groove 60 and located on the side close to the top of the second telescopic sleeve 5. At this time, as the first telescopic sleeve 4 moves upward, the two sets of pull rod mechanisms 8 pull the handle bodies 7 on both sides respectively, so that the handle bodies 7, which were originally in the retracted state, rotate around the hinge point with the handle mounting seat 6 and gradually change to the unfolded state.

[0071] When the handle body 7 is fully extended, the first telescopic sleeve 4 continues to move upward, and the protruding structure 9 of the first telescopic sleeve 4 rises and contacts the handle mounting seat 6. Since the handle mounting seat 6 is fixed to the top of the second telescopic sleeve 5, the second telescopic sleeve 5 is forced to move upward synchronously, so that the extended handle body 7 rises together with the second telescopic sleeve 5 in the first direction until it reaches the preset working position, thereby realizing the overall height increase of the handle linkage folding structure.

[0072] When the handle needs to be folded, the protruding structure 9 at the top of the first telescopic sleeve 4 is placed in the slide groove 60 and located away from the top of the second telescopic sleeve 5. Next, the drive device 2 drives the transmission screw 3 to rotate in the opposite direction, and the first telescopic sleeve 4 slides in the opposite (downward) direction. The pull rod mechanism 8 pulls the handle body 7 to rotate in the opposite direction, changing it from the unfolded state to the retracted state, completing the handle folding process. Subsequently, the first telescopic sleeve 4 continues to move downward, and the protruding structure 9 at its top descends and contacts the second telescopic sleeve 5. At this time, the first telescopic sleeve 4 drives the second telescopic sleeve 5 to move downward synchronously through the protruding structure 9. Since the handle mounting seat 6 is fixed to the top of the second telescopic sleeve 5, the handle mounting seat 6 and the retracted handle body 7 descend together with the second telescopic sleeve 5 in the first direction until they return to their initial working position.

[0073] In this invention, the handle-linked folding structure utilizes the protruding structures 9 at the top and bottom of the first telescopic sleeve 4 and the pull rod mechanism 8 to form a timing control. Specifically, when unfolding, the pull rod mechanism 8 first completes the posture transition of the handle body 7 from folded to unfolded. Once the posture is in place, the protruding structure 9 at the bottom drives the second telescopic sleeve 5 to raise its height. When folding, the pull rod mechanism 8 first completes the folding of the handle body 7, and then the protruding structure 9 at the top drives the second telescopic sleeve 5 to descend and reset. This step-by-step linkage mechanism of "posture transition first, height adjustment follow" avoids interference between the two actions, ensuring smooth operation and improving operational reliability.

[0074] Furthermore, in some specific embodiments, the driving device 2 includes a drive motor fixedly mounted on the base sleeve 1 and a transmission screw 3 driven by the drive motor. The transmission screw 3 is rotatably mounted on the base sleeve 1, and the first telescopic sleeve 4 is sleeved on the transmission screw 3 and threadedly connected to it. The drive motor drives the transmission screw 3 to rotate, thereby enabling the first telescopic sleeve 4 to slide along a first direction. The screw and nut structure has a natural self-locking characteristic, which can stably lock the first telescopic sleeve 4 at any position, avoiding accidental slippage caused by external forces (such as gravity or user force), and improving the safety of the mechanism.

[0075] Furthermore, the complete cycle of "expanding + raising" and "retracting + lowering" can be achieved simply by driving the transmission screw 3 in both forward and reverse directions via the drive unit 2, without 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.

[0076] More specifically, the drive motor in this embodiment is a servo motor, which has advantages such as high precision and fast response.

[0077] Furthermore, in some more specific embodiments, such as Figure 4 As shown, one of the inner wall of the base sleeve 1 and the outer wall of the second telescopic sleeve 5 is provided with a connecting groove 10, and the other is provided with a connecting protrusion 51 that mates with the connecting groove.

[0078] The sliding fit between the connecting groove 10 and the connecting protrusion 51 forms an axial guide track, which constrains the movement trajectory of the second telescopic sleeve 5 relative to the base sleeve 1, preventing the sleeve from rotating circumferentially or shifting radially during lifting and lowering. It also works in synergy with the driving direction of the transmission screw 3 to ensure that the second telescopic sleeve 5 slides smoothly only along the first direction, reducing component wear caused by shaking (such as frictional loss at the contact point between the protrusion structure 9 and the sleeve), and preventing operational jamming caused by the offset of the handle body 7.

[0079] In this embodiment, two connecting grooves 10 are provided on the inner wall of the base sleeve 1, and they are arranged symmetrically. Two connecting protrusions 51 are also provided on the outer wall of the second telescopic sleeve 5, which can improve the stability of lifting and sliding.

[0080] More specifically, in this embodiment, both the connecting groove 10 and the connecting protrusion 51 are elongated strips extending along the first direction. The elongated structure fully covers the lifting stroke of the second telescopic sleeve 5 along the first direction, ensuring that the sleeve remains within the engagement constraint of the groove and protrusion throughout the entire movement. Compared to a short-segment fit, this avoids radial offset that may occur in the "unconstrained segment," ensuring the stability of the lifting and sliding motion.

[0081] Furthermore, in some specific embodiments, such as Figure 4 As shown, the inner wall of the second telescopic sleeve 5 is provided with an inwardly protruding limiting structure 52, which is used to limit the rotation of the first telescopic sleeve 4. By cooperating with the outer wall of the first telescopic sleeve 4, the limiting structure 52 can limit the tendency of the first telescopic sleeve 4 to rotate synchronously with the transmission screw 3, ensuring that the rotational motion of the transmission screw 3 is completely converted into the sliding motion of the first telescopic sleeve 4 on the first square.

[0082] It should be noted that in this embodiment, three limiting structures 52 are provided, such as... Figure 4 Correspondingly, the outer wall of the first telescopic sleeve 4 is embedded into the receiving cavity of the inner wall of the second telescopic sleeve 5, and cooperates with the limiting structure 52 to constrain the rotation of the first telescopic sleeve 4. The specific shape of the limiting structure 52 is not limited in this invention; it can be designed by those skilled in the art based on actual conditions.

[0083] Furthermore, in some specific embodiments, the protruding structure 9 in the top region of the first telescopic sleeve 4 is a lug structure extending along the second direction on both sides. That is, lug structures are provided on both sides of the top region of the first telescopic sleeve 4. During the storage and unfolding stage of the upright assembly, the first telescopic sleeve 4 needs to drive the second telescopic sleeve 5 to rise or fall synchronously, with the force transmission direction being "upward drag / downward press". The symmetrical lug structures on both sides (extending along the second direction) can form "bidirectional symmetrical force" with the top of the second telescopic sleeve 5 through the lugs on both sides when the first telescopic sleeve 4 descends, preventing the sleeve from tilting or jamming due to unilateral force, and ensuring a smooth storage process.

[0084] More specifically, the pull rod mechanism 8 is an arc-shaped pull rod 80. The first end of the arc-shaped pull rod 80 is hinged to the handle body 7 via a hinge shaft, and the second end is hinged to the first telescopic sleeve 4 via a hinge shaft. That is, the second end of the arc-shaped pull rod 80 is hinged to the lug structure via a hinge shaft. In this embodiment, the arc-shaped pull rod 80 is in the shape of a quarter circle, which adapts to the 90° rotation trajectory of the handle body 7 and reduces interference.

[0085] Meanwhile, an avoidance space 81 is provided on the side of the handle body 7 near the arc-shaped pull rod 80. The avoidance space 81 on the handle body 7 is a reserved trajectory for the movement of the arc-shaped pull rod 80, so as to avoid interference between the two.

[0086] Based on the aforementioned handle-linked folding structure, this utility model also provides an electric suitcase, which includes the aforementioned handle-linked folding structure. This electric suitcase incorporates at least all the technical solutions of the aforementioned handle-linked folding structure and possesses at least all the advantages of the aforementioned handle-linked folding structure, which will not be elaborated further here.

[0087] Furthermore, such as Figure 6 As shown, a base 11 is provided at the bottom of the base sleeve 1 in the handle linkage folding structure, and foot pedals 12 are provided on both sides of the base 11 for stepping.

[0088] More preferably, the foot pedal 12 can be linked with the upright assembly, allowing the foot pedal 12 to switch between a folded and unfolded state. The foot pedal 12 is synchronously driven to switch states by the lifting and lowering motion of the upright assembly, eliminating the need for separate operation of the foot pedal 12 and achieving one-stop control of "handle unfolding + foot pedal unfolding". For example, the foot pedal automatically pops out when the upright assembly is unfolded and simultaneously retracts when it is folded, reducing user operation steps and improving ease of use. Simultaneously, the linkage design allows the driving mechanism of the foot pedal 12 to be shared with the upright assembly (e.g., in this embodiment, the stroke of the first telescopic sleeve 4 drives the foot pedal 12), avoiding the need for a separate foot pedal driving assembly, making the overall structure more compact, especially suitable for devices such as electric suitcases. Specifically, the foot pedal 12 in this invention can be linked with the first telescopic sleeve 4 in the upright assembly to achieve functions such as foldable storage; no specific limitation is made here, and those skilled in the art can choose according to the actual situation.

[0089] 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 substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A handle-linked folding structure, characterized in that: It includes: Base sleeve fittings; The driving device is fixed on the base sleeve. The upright assembly is slidably disposed within the base sleeve; It includes a first telescopic sleeve and a second telescopic sleeve. The first telescopic sleeve slides inside the base sleeve and is connected to the driving device. The second telescopic sleeve is sleeved between the first telescopic sleeve and the base sleeve and is slidably connected to the first telescopic sleeve. A handle assembly is located at the top of the upright assembly; The first telescopic sleeve has a first position, a second position, and a third position; When the first telescopic sleeve is in the first position, the handle assembly is in a retracted state; When the first telescopic sleeve moves upward to the second position, the handle assembly is in an unfolded state; When the first telescopic sleeve continues to move upward to the third position, it drives the second telescopic sleeve to move upward synchronously.

2. The handle-linked folding structure according to claim 1, characterized in that: The handle assembly includes: The handle mounting base is fixedly installed on the top end of the second telescopic sleeve; Two handle bodies are respectively hinged to both sides of the handle mounting base; Two sets of lever mechanisms, one end of each lever mechanism is hinged to the handle body, and the other end is hinged to the top area of ​​the first telescopic sleeve.

3. The handle-linked folding structure according to claim 2, characterized in that: The top area of ​​the first telescopic sleeve is provided with a protruding structure; A groove is formed between the handle mounting base and the top end of the second telescopic sleeve; The protruding structure at the top region of the first telescopic sleeve is located within the groove; When the protruding structure at the top of the first telescopic sleeve slides in the groove, the handle body is switched between the retracted and extended states via the pull rod mechanism.

4. The handle-linked folding structure according to claim 3, characterized in that: The protruding structure in the top region of the first telescopic sleeve is a lug structure extending along the second direction on both sides.

5. The handle-linked folding structure according to claim 4, characterized in that: The pull rod mechanism is an arc-shaped pull rod. The first end of the arc-shaped pull rod is hinged to the handle body through a hinge shaft, and the second end of the arc-shaped pull rod is hinged to the lug structure through a hinge shaft.

6. The handle-linked folding structure according to claim 1, characterized in that: The driving device includes a drive motor and a transmission screw connected to it; the transmission screw is rotatably mounted on the base sleeve, and the first telescopic sleeve is sleeved on the transmission screw and threadedly connected to it.

7. The handle-linked folding structure according to claim 1, characterized in that: The inner wall of the base sleeve and the outer wall of the second telescopic sleeve are provided with a connecting groove, and the other is provided with a connecting protrusion that mates with the connecting groove. And / or the inner wall of the second telescopic sleeve is provided with an inwardly protruding limiting structure to restrict the rotation of the first telescopic sleeve.

8. An electric suitcase, characterized in that: Includes the handle linkage folding structure as described in any one of claims 1 to 7.

9. The electric suitcase according to claim 8, characterized in that: A base is provided at the bottom of the base sleeve in the handle linkage folding structure, and foot pedals are provided on both sides of the base.

10. The electric suitcase according to claim 9, characterized in that: The foot pedal is linked to the upright assembly, allowing the foot pedal to switch between a stowed state and an unfolded state.

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