Pedal stand linkage structure and electric luggage

Abstract

This utility model belongs to the field of luggage technology, and particularly relates to a foot pedal linkage structure and an electric luggage. It includes: a base; a base sleeve extending in a first direction and mounted on the base; a drive device fixedly mounted on the base; a foot pedal assembly slidably disposed within the base sleeve and connected to the drive device; and a foot pedal assembly hinged to both sides of the base and linked with the foot pedal assembly, allowing the foot pedal assembly to switch between a retracted and extended state. This foot pedal linkage structure achieves the raising and lowering of the foot pedal assembly and the retraction and extension of the foot pedal through a single drive device, eliminating the need for a separate drive component for the foot pedal, reducing the number of core components, simplifying the overall structure, and lowering manufacturing costs and assembly difficulty; at the same time, it reduces operating steps and improves ease of use.

Description

Technical Field

[0001] This utility model belongs to the field of luggage technology, and in particular relates to a foot pedal linkage structure and an electric luggage. Background Technology

[0002] With the rapid development of smart travel equipment, products such as electric suitcases are becoming increasingly popular. These devices typically integrate a drive unit and an intelligent control system, and are generally equipped with a height-adjustable pole and retractable foot pedals (for users to step on while moving).

[0003] Currently, in existing structural solutions that enable pole raising and lowering and foot pedal retraction, the raising and lowering of the pole and the retraction of the foot pedal usually rely on two independent drive devices: for example, one motor drives the pole to raise and lower, and another motor or manual mechanism drives the foot pedal to retract and extend.

[0004] When there are two drive units, the number of core components (such as additional motors, transmission gears, control modules, etc.) is likely to increase, which not only increases the overall structural complexity, but also significantly increases manufacturing costs and assembly difficulty. At the same time, the coordinated control of the two drive units requires additional electrical control logic matching, which can easily lead to action lag due to control asynchrony, reducing the reliability of equipment operation.

[0005] When a drive unit plus a manual mechanism drives the foot pedal to retract and extend, the operation of raising and lowering the pole and retracting and extending the foot pedal need to be done in two steps. This is not only cumbersome, but also requires the user to apply additional force, which cannot meet the needs of automation and convenience.

[0006] Based on this, the present invention provides a novel foot pedal linkage structure and an electric luggage case to overcome the above-mentioned defects. Utility Model Content

[0007] One objective of this invention is to provide a foot pedal linkage structure that uses a single drive device to link the lifting and lowering of the pedal assembly and the retraction and extension of the foot pedal, eliminating the need for a separate drive component for the foot pedal, reducing the number of core components, simplifying the overall structure, and lowering manufacturing costs and assembly difficulty; at the same time, it reduces operating steps and improves ease of use.

[0008] This utility model adopts the following technical solution: a foot pedal pole linkage structure, which includes:

[0009] Base;

[0010] A base sleeve extends in a first direction and is mounted on the base;

[0011] The drive unit is fixedly installed on the base;

[0012] The upright assembly is slidably disposed within the base sleeve and is connected to the driving device for transmission.

[0013] The foot pedal assembly is hinged to both sides of the base and linked with the upright assembly, allowing the foot pedal assembly to switch between a stowed state and an unfolded state.

[0014] Furthermore, the foot pedal assembly includes:

[0015] Two foot pedals are hinged to both sides of the base, respectively;

[0016] An energy storage component, connected between the foot pedal and the base, is used to store elastic potential energy when the foot pedal rotates from the unfolded state to the retracted state.

[0017] The drive frame is connected to the upright assembly and cooperates with the foot pedal.

[0018] Furthermore, when the drive frame moves downward along with the upright assembly in the first direction, the drive frame presses down against the foot pedal near the base end, causing the foot pedal to rotate upward to a retracted state.

[0019] Furthermore, the drive frame is an inverted U-shaped frame;

[0020] The foot pedal has an abutment portion near the base, which is positioned opposite to the two free ends of the inverted U-shaped frame.

[0021] Furthermore, the pole assembly includes:

[0022] The first telescopic sleeve is slidably disposed inside the base sleeve; and the top and bottom regions of the first telescopic sleeve are provided with protruding structures.

[0023] The second telescopic sleeve is sleeved between the first telescopic sleeve and the base sleeve and is slidably connected to the first telescopic sleeve. It also cooperates with the protrusion structure on the first telescopic sleeve to push the second telescopic sleeve to slide relative to the base sleeve in a first direction.

[0024] Furthermore, the drive frame is fixedly connected to the protruding structure at the bottom region of the first telescopic sleeve.

[0025] 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;

[0026] 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.

[0027] 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.

[0028] Furthermore, the driving device includes a drive motor fixedly mounted on the base and a transmission screw that is driven by the drive motor; 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.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] In this utility model, the foot pedal linkage structure has a drive device that drives the upright assembly to slide along the first direction of the base sleeve via an output shaft. During the sliding process, the upright assembly forms a mechanical linkage with the foot pedal assembly. For example, when the upright assembly rises, it releases the constraint on the foot pedal assembly, causing it to change from a retracted state to an extended state. When the upright assembly descends, it triggers the foot pedal assembly through a transmission structure, causing it to reset from the extended state to the retracted state, thus achieving synchronous control of "upright lifting and lowering" and "foot pedal retraction and extension".

[0031] The foot pedal linkage structure of this utility model realizes the lifting and lowering of the pole assembly and the retraction and extension of the foot pedal through a single drive device, eliminating the need for a separate drive component for the foot pedal, reducing the number of core components, simplifying the overall structure, and lowering manufacturing costs and assembly difficulty; at the same time, it reduces the number of operation steps and improves ease of use.

[0032] In addition, the linkage allows the foot pedal assembly to fit snugly into the base for storage, and combined with the axial extension and retraction of the pole assembly, it significantly reduces the overall space occupied by the device, making it suitable for scenarios such as portable electric suitcases.

[0033] The second objective of this utility model is to provide an electric luggage case, which includes the aforementioned foot pedal linkage structure. 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 foot pedal linkage structure in a specific embodiment of the present utility model;

[0036] Figure 2 for Figure 1 A sectional view;

[0037] Figure 3 for Figure 1 A partial sectional view to show the structure of the connecting groove, connecting protrusion and limiting structure;

[0038] The components include: base 10, base sleeve 11, connecting groove 111; drive device 2; transmission screw 3; upright assembly 4, protrusion structure 40, lug structure 401, push block 402, first telescopic sleeve 41, second telescopic sleeve 42, connecting protrusion 421, limiting structure 422; foot pedal 5, near base end 50, far base end 51, pin 52, abutment part 53; drive frame 6, free end 60. Detailed Implementation

[0039] 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.

[0040] The following is in conjunction with the appendix Figure 1 To be continued Figure 3 The present invention will be described in detail with reference to specific embodiments:

[0041] like Figures 1 to 3 As shown, this utility model provides a foot pedal upright linkage structure, which includes:

[0042] Base 10;

[0043] The base sleeve 11 extends in the first direction and is mounted on the base 10;

[0044] The drive device 2 is fixedly installed on the base 10, and the drive device 2 has an output shaft;

[0045] The upright assembly 4 is slidably disposed within the base sleeve 11 and is connected to the driving device 2 in a transmission manner.

[0046] The foot pedal assembly is hinged to both sides of the base 10 and is linked with the upright assembly 4, so that the foot pedal assembly can switch between a retracted state and an unfolded state.

[0047] In this utility model, the foot pedal linkage structure drives the upright assembly 4 to slide along the first direction of the base sleeve 11 via the output shaft. During the sliding process, the upright assembly 4 forms a mechanical linkage with the foot pedal assembly. For example, when the upright assembly 4 rises, it releases the constraint on the foot pedal assembly, causing it to change from a retracted state to an extended state. When the upright assembly 4 falls, it triggers the foot pedal assembly through the transmission structure, causing it to reset from the extended state to the retracted state, thus realizing the synchronous control of "upright lifting" and "foot pedal retraction".

[0048] In this utility model, the foot pedal and upright linkage structure realizes the lifting and lowering of the upright assembly 4 and the retraction and extension of the foot pedal 5 through a single drive device 2. There is no need to configure a separate drive component for the foot pedal 5, which reduces the number of core components, simplifies the overall structure, and reduces manufacturing costs and assembly difficulty. At the same time, it reduces the number of operation steps and improves the ease of use.

[0049] In addition, the linkage allows the foot pedal assembly to fit snugly into the base 10 for storage, and combined with the axial extension and retraction of the pole assembly 4, it significantly reduces the overall space occupied by the device, making it suitable for scenarios such as portable electric suitcases.

[0050] Furthermore, in some specific embodiments, the foot pedal assembly includes:

[0051] Two foot pedals 5 are respectively hinged to both sides of the base 10 via pins 52;

[0052] An energy storage component is connected between the foot pedal 5 and the base 10, and is used to store elastic potential energy when the foot pedal 5 rotates from the unfolded state to the retracted state.

[0053] The drive frame 6 is connected to the upright assembly 4 and cooperates with the foot pedal 5.

[0054] During operation, the lifting and lowering of the upright assembly 4 drives the synchronous movement of the drive frame 6, which in turn presses against the foot pedal 5 to achieve the transition between the unfolded state and the retracted state.

[0055] Specifically, in this embodiment, when the drive frame 6 moves downward along with the upright assembly 4 in the first direction, the drive frame 6 presses down against the near-base end 50 of the foot pedal 5, causing the foot pedal 5 to rotate upward to a retracted state. That is, when the upright assembly 4 is installed inside the base sleeve 11, the drive frame 6 installed on the upright assembly 4 presses against the near-base end 50 of the foot pedal 5, causing the foot pedal 5 to be in a retracted state; as the upright assembly 4 moves upward, the drive frame 6 releases its pressure, and the energy storage device releases energy to drive the foot pedal 5 to return to the unfolded state.

[0056] It can be seen that when the upright assembly 4 is in the retracted state, its overall height is at its minimum, and the foot pedal 5 is in a synchronously folded state. This allows the mechanism to achieve "three-dimensional space minimization" in its stowed state—the vertical height is reduced due to the retraction of the upright assembly 4, and there are no protruding parts in the lateral direction due to the folding of the foot pedal. This is especially suitable for devices that are sensitive to storage size, such as electric suitcases, and can reduce the storage space occupied by the device. As the upright assembly 4 moves upward, the drive frame 6 releases its pressure on the foot pedal 5, and the energy storage device releases energy to drive the foot pedal to unfold.

[0057] Furthermore, in some specific embodiments, the drive frame 6 is an inverted U-shaped frame.

[0058] Meanwhile, an L-shaped abutment portion 53 is formed at the base end 50 of the foot pedal 5, and the abutment portion 53 is arranged opposite to the two free ends 60 of the inverted U-shaped frame 6.

[0059] When the upright assembly 4 moves downward in the first direction, the inverted U-shaped frame 6, which is fixedly connected to the upright assembly 4, moves downward synchronously. The two free ends 60 (the two ends of the open end) of the inverted U-shaped frame also move downward, gradually approaching the abutment part 53 of the foot pedal 5. Since the abutment part 53 and the two free ends 60 are arranged opposite each other, when the inverted U-shaped frame continues to move downward until the two free ends 60 contact the abutment part 53, the free ends 60 apply a downward pressing force to the abutment part 53. This pressing force is transmitted through the abutment part 53 to the foot pedal 5 near the base end 50, forming a rotational torque around the hinge point between the foot pedal 5 and the base 10, driving the foot pedal 5 far from the base end 51 to rotate upward, ultimately causing the foot pedal 5 to switch from the unfolded state to the retracted state. During this process, the energy storage component accumulates elastic potential energy as the foot pedal 5 rotates. After the upright assembly 4 moves upward and the free ends 60 of the inverted U-shaped frame disengage from the abutment part 53, the energy storage component releases energy to drive the foot pedal 5 to reset.

[0060] In this utility model, the two free ends 60 of the inverted U-shaped frame and the contact part 53 of the foot pedal 5 are "one-to-one opposite" to form a two-point symmetrical pressing structure. Compared with a single contact point, it can avoid the problem of "free ends 60 and foot pedal 5 separating" caused by force deviation during the pressing process, ensuring that the pressing force is stably transmitted to the foot pedal 5 and ensuring reliable triggering of the storage action.

[0061] Furthermore, in some specific embodiments, the energy storage component is a torsion spring (not shown in the figure), one end of which is connected to the foot pedal 5, and the other end is connected to the base 10. As a preferred embodiment, the torsion spring in this embodiment is a double torsion spring structure. The two helical segments of the double torsion spring are coaxially sleeved on the outer periphery of the pin 52, with one end fixedly connected to the foot pedal 5 and the other end fixedly connected to the base 10. Through the parallel design of the double torsion springs, the elastic potential energy storage capacity can be increased several times compared to a single torsion spring; the coaxial constraint design between the helical segments and the pin 52 enhances system stability.

[0062] Furthermore, the upright assembly 4 in this invention can be implemented in various ways. For example, it can consist of only one upright: this upright is threadedly connected to the transmission screw 3 and forms a sliding fit with the base sleeve 11, which can convert the rotational motion of the transmission screw 3 into its own linear sliding motion; the bottom area of ​​the upright is provided with a protruding structure 40, which can synchronously drive the drive frame 6 to rise and fall through the lifting and lowering of the upright. However, when using this single upright structure, if the upright needs to be raised to a higher height, the lengths of both the upright and the base sleeve 11 need to be relatively long.

[0063] Based on this, the structure of the upright assembly 4 is further optimized in this utility model, and the detailed design scheme is as follows:

[0064] The pole assembly 4 includes:

[0065] The first telescopic sleeve 41 is slidably disposed inside the base sleeve 11 and is connected to the driving device 2 for transmission, so as to drive the first telescopic sleeve 41 to slide in a first direction; the top and bottom regions of the first telescopic sleeve 41 are provided with protruding structures 40.

[0066] The second telescopic sleeve 42 is sleeved between the first telescopic sleeve 41 and the base sleeve 11 and is slidably connected to the first telescopic sleeve 41. It also cooperates with the protrusion structure 40 on the first telescopic sleeve 41 to push the second telescopic sleeve 42 to slide relative to the base sleeve 11 in a first direction.

[0067] It should be noted that in actual use, a handle assembly can be installed on the top of the upright assembly 4, and the handle can be raised or lowered by extending and retracting the upright assembly 4.

[0068] Specifically, the drive frame 6 can be fixedly connected to the first telescopic sleeve 41 in the pole assembly 4, and can also be fixedly connected to the second telescopic sleeve 42, as long as it can be linked with the pole assembly 4 to enable the foot pedal 5 to switch between the retracted state and the unfolded state.

[0069] In this embodiment, the drive frame 6 is fixedly connected to the protruding structure 40 at the bottom region of the first telescopic sleeve 41. That is, when the drive frame 6 moves with the first telescopic sleeve 41 in the first direction, the foot pedal 5 switches between the unfolded state and the retracted state. Compared with linkage with the second telescopic sleeve 42, the first telescopic sleeve 41 is directly driven by the drive device (such as a servo motor) through the transmission screw 3, which makes the stroke control more precise and avoids the lag in the movement of the foot pedal 5 caused by the "follow-up delay" of the second telescopic sleeve 42.

[0070] The first telescopic sleeve 41 has at least a first position and a second position.

[0071] When the first telescopic sleeve 41 is in the first position, the drive frame 6 presses against the foot pedal 5 near the base end 50, and forms a torque around the hinge point to rotate the foot pedal 5 upward to the storage state, so that the foot pedal 5 is in the retracted state; in this embodiment, the first position of the first telescopic sleeve 41 refers to when the first telescopic sleeve 41 is at the lowest point.

[0072] As the first telescopic sleeve 41 moves upward from the first position to the second position, the drive frame 6 releases its pressure, and the energy storage component releases energy to drive the foot pedal 5 to reset to the unfolded state; when the first telescopic sleeve 41 moves to the second position, the upright assembly 4 rises to the highest position.

[0073] In some more specific embodiments, such as Figure 3 As shown, one of the inner wall of the base sleeve 11 and the outer wall of the second telescopic sleeve 42 is provided with a connecting groove 111, and the other is provided with a connecting protrusion 421 that cooperates with the connecting groove 111.

[0074] The sliding engagement between the connecting groove 111 and the connecting protrusion 421 forms an axial guide track, which constrains the movement trajectory of the second telescopic sleeve 42 relative to the base sleeve 11, 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 42 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 40 and the sleeve).

[0075] In this embodiment, two connecting grooves 111 are provided on the inner wall of the base sleeve 11, and they are arranged symmetrically. Two connecting protrusions 421 are provided on the outer wall of the second telescopic sleeve 42, which can improve the stability of lifting and sliding.

[0076] More specifically, in this embodiment, both the connecting groove 111 and the connecting protrusion 421 are elongated strips extending along the first direction. The elongated structure fully covers the lifting stroke of the second telescopic sleeve 42 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.

[0077] Furthermore, in some specific embodiments, such as Figure 3 As shown, the inner wall of the second telescopic sleeve 42 is provided with an inwardly protruding limiting structure 422, which is used to limit the rotation of the first telescopic sleeve 41. By cooperating with the outer wall of the first telescopic sleeve 41, the limiting structure 422 can limit the tendency of the first telescopic sleeve 41 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 41 on the first square.

[0078] It should be noted that in this embodiment, one limiting structure 422 is provided, such as... Figure 3 Correspondingly, the outer wall of the first telescopic sleeve 41 is embedded into the receiving cavity of the inner wall of the second telescopic sleeve 42, and cooperates with the limiting structure 422 to constrain the rotation of the first telescopic sleeve 41. The specific shape of the limiting structure 422 is not limited in this invention; it can be designed by those skilled in the art based on actual conditions.

[0079] Furthermore, in some specific embodiments, the protruding structure 40 in the top region of the first telescopic sleeve 41 is provided with lug structures 401 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 41. During the storage stage of the upright assembly 4, the first telescopic sleeve 41 needs to drive the second telescopic sleeve 42 to descend synchronously, and the force transmission direction is "downward pressing / dragging". The symmetrical lug structures 401 on both sides (extending along the second direction) can form "bidirectional symmetrical force" with the top of the second telescopic sleeve 42 through the lugs on both sides when the first telescopic sleeve 41 descends, preventing the sleeve from tilting or jamming due to unilateral force, and ensuring a smooth storage process.

[0080] The protruding structure 40 at the bottom region of the first telescopic sleeve 41 is a push block 402, which is fixedly installed at the bottom region of the first telescopic sleeve 41. The push block 402 can be an integral part of the first telescopic sleeve 41 or it can be a separate part. This utility model does not make a specific limitation, and those skilled in the art can choose according to the actual situation.

[0081] Furthermore, in some specific embodiments, the driving device 2 includes a drive motor fixedly mounted on the base 10 and a transmission screw 3 driven by the drive motor; the transmission screw 3 is rotatably mounted on the base sleeve 11, and the first telescopic sleeve 41 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 41 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 41 at any position, avoiding accidental slippage caused by external forces (such as gravity or user force), and improving the safety of the mechanism.

[0082] Furthermore, the linkage between "overall lifting" and "foot pedal storage → unfolding" can be achieved simply by driving the transmission screw 3 in both forward and reverse directions via the drive device 2, without the need for additional manual operation or multiple drive source control. This single power source driving multiple actions simplifies the user's operation process and reduces the design complexity of the control system.

[0083] The general working principle of the foot pedal linkage structure in this utility model is as follows:

[0084] In the initial state, the drive frame 6 installed at the bottom of the first telescopic sleeve 41 presses against the foot pedal 5 near the base end 50, so that the foot pedal 5 is in a retracted state.

[0085] Next, the drive unit 2 starts, and its output shaft drives the transmission screw 3 to rotate. Since the first telescopic sleeve 41 is threadedly connected to the transmission screw 3, the rotation of the transmission screw 3 is converted into the linear sliding of the first telescopic sleeve 41 along the first direction (upward). As the first telescopic sleeve 41 moves upward, the drive frame 6 releases its pressure, and the energy storage device releases energy to drive the foot pedal 5 to reset to the unfolded state.

[0086] Next, the first telescopic sleeve 41 continues to move upward, and the protrusion 40 on the first telescopic sleeve 41 rises accordingly and comes into contact with the second telescopic sleeve 42. At this time, the first telescopic sleeve 41 drives the second telescopic sleeve 42 to move upward synchronously through the protrusion 40, thereby raising the overall height of the pole assembly 4.

[0087] When the upright assembly 4 needs to be retracted, the drive device 2 drives the transmission screw 3 to rotate in the reverse direction. The first telescopic sleeve 41 slides in the reverse (downward) direction, and the protrusion structure 40 in its top area descends and contacts the second telescopic sleeve 42. At this time, the first telescopic sleeve 41 drives the second telescopic sleeve 42 to move downward synchronously through the protrusion structure 40 until it returns to the initial working position. At the same time, when the first telescopic sleeve 41 slides in the reverse (downward) direction, the protrusion structure 40 in the bottom area of ​​the first telescopic sleeve 41 drives the drive frame 6 to move downward synchronously. The drive frame 6 presses against the near-base end 50 of the foot pedal 5, forming a torque around the hinge point to rotate the foot pedal 5 upward to the retracted state. During this process, the energy storage component stores energy.

[0088] This utility model's foot pedal linkage structure, through the nested cooperation of two-stage telescopic sleeves, achieves a higher extension height than a single pole structure while maintaining the same storage length. When retracted, the first telescopic sleeve 41 retracts into the second telescopic sleeve 42, and the second telescopic sleeve 42 then retracts into the base sleeve 11. The overall length is only slightly longer than the base sleeve 11, resolving the contradiction of "high extension requiring long storage" inherent in single pole structures. This makes it particularly suitable for scenarios sensitive to storage size, such as electric suitcases. Simultaneously, all sleeves are nested along the same axis (first direction), integrating drive, transmission, and lifting functions into a coaxial structure. This avoids lateral space occupation, making the overall structure more compact and flexibly adaptable to equipment with limited installation space.

[0089] In addition, the foot pedal 5 automatically retracts as the upright assembly 4 descends, greatly reducing space occupation and avoiding the risk of bumps and knocks caused by the protruding foot pedal 5; and the foot pedal 5 automatically resets by relying on the energy storage component, without the need for additional power, and the reset process is stable and reliable.

[0090] Based on the aforementioned foot pedal linkage structure, this utility model also provides an electric suitcase, which includes the aforementioned foot pedal linkage structure. This electric suitcase includes at least all the technical solutions of the aforementioned foot pedal linkage structure and possesses at least all the advantages of the aforementioned foot pedal linkage structure, which will not be elaborated further here.

[0091] 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 pedal stand linkage structure, characterized by: It includes: Base; A base sleeve extends in a first direction and is mounted on the base; The drive unit is fixedly installed on the base; The upright assembly is slidably disposed within the base sleeve and is connected to the driving device for transmission. The foot pedal assembly is hinged to both sides of the base and linked with the upright assembly, allowing the foot pedal assembly to switch between a stowed state and an unfolded state.

2. The foot pedal pole linkage structure according to claim 1, characterized in that: The foot pedal assembly includes: Two foot pedals are hinged to both sides of the base, respectively; An energy storage component, connected between the foot pedal and the base, is used to store elastic potential energy when the foot pedal rotates from the unfolded state to the retracted state. The drive frame is connected to the upright assembly and cooperates with the foot pedal.

3. The foot pedal pole linkage structure according to claim 2, characterized in that: When the drive frame moves downward along with the upright assembly in the first direction, the drive frame presses down against the foot pedal near the base end, causing the foot pedal to rotate upward to the retracted state.

4. The foot pedal pole linkage structure according to claim 2, characterized in that: The drive frame is an inverted U-shaped frame; The foot pedal has an abutment portion near the base, which is positioned opposite to the two free ends of the inverted U-shaped frame.

5. The foot pedal pole linkage structure according to claim 2, characterized in that: The pole assembly includes: The first telescopic sleeve is slidably disposed inside the base sleeve; and the top and bottom regions of the first telescopic sleeve are provided with protruding structures. The second telescopic sleeve is sleeved between the first telescopic sleeve and the base sleeve and is slidably connected to the first telescopic sleeve. It also cooperates with the protrusion structure on the first telescopic sleeve to push the second telescopic sleeve to slide relative to the base sleeve in a first direction.

6. The foot pedal pole linkage structure according to claim 5, characterized in that: The drive frame is fixedly connected to the protruding structure at the bottom region of the first telescopic sleeve.

7. The foot pedal pole linkage structure according to claim 5, characterized in that: 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; 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. The foot pedal pole linkage structure according to claim 5, 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.

9. The foot pedal pole linkage structure according to claim 5, characterized in that: The driving device includes a drive motor fixedly mounted on the base and a transmission screw that is driven by the drive motor; 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.

10. An electrically powered luggage case characterized by: Includes the foot pedal linkage structure as described in any one of claims 1 to 9.

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