Stair structure and two-wheeled vehicle

Abstract

The application discloses a ladder structure and a double-wheel vehicle. The ladder structure comprises a driving assembly, a switching assembly and a supporting foot assembly. The switching assembly is connected to the driving assembly and the supporting foot assembly, so that the supporting foot assembly can be switched between a supporting position and a storage position. The switching assembly comprises a rotating member and a switching member. The rotating member is drivingly connected to the driving assembly and rotates around a preset axis. The switching member is circumferentially limitedly connected to the supporting foot assembly. The rotating member is provided with a movable space extending along the circumference of the rotating member. The switching member is rotatably arranged in the movable space, so that the switching member has an electric driving state and a manual driving state. In the manual driving state, an external force acts on the supporting foot assembly to drive the switching member to rotate in the movable space. In the electric driving state, the driving assembly drives the rotating member to circumferentially limit and abut against the switching member, so as to drive the supporting foot assembly to switch between the supporting position and the storage position. The ladder structure can be electrically driven and manually driven.

Description

Technical Field

[0001] This application relates to the field of two-wheeled vehicle accessories technology, and in particular to a ladder structure for a two-wheeled vehicle. Background Technology

[0002] Bicycles, electric two-wheelers, electric motorcycles, and other two-wheeled vehicles typically have a ladder structure at the bottom to support the vehicle when it is stationary, maintaining its balance. Existing ladder structures mainly consist of two parts: a support leg assembly and a drive mechanism. The support leg assembly can usually rotate between a supported position and a retracted position, allowing for switching between the vehicle's supported and driving states.

[0003] In existing technologies, the drive methods of bicycle ladders are mainly divided into two categories. One is a purely manual drive structure, where the rider applies force with their feet to rotate the support leg assembly from the retracted position to the supporting position or retract it in the opposite direction. Although this type of structure is low in cost, it is relatively laborious to operate. The other is an electric drive structure, which uses a motor to drive the support leg assembly to rotate, achieving automatic unfolding or retraction. Although it is convenient to operate, when the drive component malfunctions or there is insufficient power, the support leg assembly cannot be manually driven by external force, causing the vehicle to fail to park or reset properly, resulting in poor stability.

[0004] Therefore, it is necessary to propose a ladder structure that can be driven both electrically and manually.

[0005] The above content is only used to assist in understanding the technical solution of the utility model and does not represent an admission that the above content is prior art. Utility Model Content

[0006] In view of the above problems, this utility model proposes a vehicle ladder structure that can be driven both electrically and manually.

[0007] To achieve the above objectives, the vehicle ladder structure proposed in this utility model includes: a drive assembly, a switching assembly, and a support leg assembly. The switching assembly connects the drive assembly and the support leg assembly, allowing the support leg assembly to switch between a supporting position and a retracted position. The switching component includes a rotating component and a switching component. The rotating component is throttledly connected to the driving component and rotates around a preset axis. The switching component is circumferentially limited and connected to the support foot component. The rotating component has an active space extending along its circumference. The switching component is rotatably disposed within the active space so that the switching component has an electric drive state and a manual drive state. In the manual drive state, an external force is applied to the support leg assembly to drive the switching member to rotate within the active space, thereby causing the support leg assembly to switch between the support position and the storage position. In the electric drive state, the drive assembly drives the rotating member to circumferentially limit and abut against the switching member, thereby causing the support foot assembly to switch between the support position and the storage position.

[0008] In one embodiment, the rotating member has a first abutting surface and a second abutting surface, the first abutting surface and the second abutting surface enclosing the movable space; The switching component has a first mating surface that is circumferentially opposite to the first abutting surface, and a second mating surface that is circumferentially opposite to the second abutting surface; When the first abutting surface abuts against the first mating surface, the driving component can drive the rotating component to rotate the switching component to one of the positions of the support foot assembly being in the support position and the storage position. At this position, the driving component reverses so that the second abutting surface abuts against the second mating surface, thereby enabling the switching component to be electrically or manually rotated to another position of the support foot assembly being in the support position and the storage position.

[0009] In one embodiment, the switching component further includes a rotating shaft, and both the rotating member and the switching member are sleeved on the rotating shaft; The rotating component has an abutting bottom surface, and a driving block is protruding from the abutting bottom surface. The driving block has a first abutting surface and a second abutting surface in its circumferential direction. The switching component has a mating bottom surface that is axially opposite to the abutting bottom surface. The mating bottom surface is provided with a switching block, and the switching block has a first mating surface and a second mating surface along its circumference. Both the driving block and the switching block are located between the mating bottom surface and the abutting bottom surface, and the switching block rotates within the movable space.

[0010] In one embodiment, the drive block includes a first sub-block and a second sub-block, the first sub-block and the second sub-block being spaced apart around the preset axis; both the first sub-block and the second sub-block have a first abutting surface and a second abutting surface, so that the first sub-block and the second sub-block respectively form the movable space on both sides in the circumferential direction; There are two switching blocks, and the two switching blocks rotate in the two activity spaces respectively.

[0011] In one embodiment, the drive assembly includes a motor and a gear set, with the output shaft of the motor connected to the gear set; The rotating component also includes a gear portion fixedly connected to the drive block, the abutting bottom surface is formed on the gear portion, and the gear portion is meshed with the gear set.

[0012] In one embodiment, the vehicle ladder structure further includes a housing, the drive assembly and the switching assembly are both installed inside the housing, the inner wall of the housing is provided with a limit switch, and the switching component is provided with a limit block protruding radially therefrom; When the support position is switched to the storage position, the limit block abuts against the limit switch to stop the drive component.

[0013] In one embodiment, the vehicle ladder structure further includes a fixing plate, which is fixedly connected to the outer shell. The fixing plate has a storage position, a partition position, and a support position, with the partition position located between the storage position and the support position. The support leg assembly includes a rolling element, an elastic telescopic tube, and a support leg. The elastic telescopic tube is rotatably connected to the fixed plate via a rotating shaft. The rolling element is rotatably connected to the elastic telescopic tube and the fixed plate. The support leg is fixedly connected to the elastic telescopic tube. The distance between the storage position and the rotation axis gradually decreases from the partition position towards the storage position, and the distance between the support position and the rotation axis gradually decreases from the partition position towards the support position. When the separating position is switched to the storage position, the rolling element abuts against the wall of the storage position under the action of elasticity, so as to drive the support foot to switch to the storage position; When the separating position is switched to the supporting position, the rolling element abuts against the wall of the supporting position under the action of elasticity, so as to drive the supporting foot to switch to the supporting position.

[0014] In one embodiment, the peripheral wall of the fixing plate is provided with a storage groove and a support groove, the storage groove forming the storage position and the support groove forming the support position, the storage groove being convexly arc-shaped at the bottom wall of the support groove; the partition position is formed at the corner of the peripheral wall of the fixing plate.

[0015] In one embodiment, the elastic telescopic tube includes an outer tube, an inner tube, and an elastic element, with one end of the outer tube rotatably connected to the fixed plate and the other end fixedly connected to the support foot. The inner tube is movably inserted into the outer tube, and the rolling element is rotatably connected to the inner tube; the opposite ends of the elastic element abut against the support foot and the inner tube, respectively.

[0016] This utility model also proposes a two-wheeled vehicle, including a vehicle body and a ladder structure as described above, wherein the ladder structure is fixedly connected to the vehicle body.

[0017] This utility model's vehicle ladder structure includes a drive assembly, a switching assembly, and a support foot assembly. The switching assembly connects the drive assembly and the support foot assembly, providing both a supporting position and a storage position for the support foot assembly. The switching assembly includes a rotating component and a switching component. The rotating component has a movable space extending circumferentially, within which the switching component is rotatably disposed. This movable space allows the switching component to move relative to the rotating component within a certain angular range, enabling switching between electric and manual drive modes. Specifically, when the drive assembly is operating, the edge of the movable space forms rigid contact with the switching component, transmitting power. When the motor is not operating, the movable space provides the switching component with free movement, allowing the support foot assembly to be driven by external force, thus achieving a natural switch between electric and manual drive modes. This improves the reliability and fault tolerance of the vehicle ladder structure, ensuring safe parking of vehicles under various conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This diagram shows a structural schematic of the first embodiment of the vehicle ladder structure of this utility model in the storage position; Figure 2 This is a schematic diagram of the first embodiment of the vehicle ladder structure of this utility model at the support position; Figure 3 This is a schematic diagram of the ladder structure of this utility model without the cover. Figure 4 This is a sectional view of the ladder structure of this utility model; Figure 5 This is a cross-sectional view of the vehicle ladder structure of this utility model in the storage position; Figure 6 This is a cross-sectional view of the vehicle ladder structure of this utility model when it switches from the motor-driven state to the support position; Figure 7 This is a cross-sectional view of the vehicle ladder structure of this utility model when the motor reverses in the support position; Figure 8 This is a cross-sectional view of the vehicle ladder structure of this utility model when it is switched from the motor-driven state to the storage position; Figure 9 This is a schematic diagram of the drive assembly and switching assembly of the vehicle ladder structure of this utility model; Figure 10 This is a schematic diagram of the switching component of the vehicle ladder structure of this utility model; Figure 11 This is a cross-sectional view of the first embodiment of the vehicle ladder structure of this utility model; Figure 12 This is a schematic diagram of the second embodiment of the vehicle ladder structure of this utility model; Explanation of icon numbers: 100 Car ladder structure 22 Switching components 322 Inner tube 10 Driver components 221 First mating surface 323 elastic element 11 motor 222 Second mating surface 33 support feet 12 Gear set 215 Butt against the bottom 40 shell 20 Switching components 223 Matching the bottom surface 41 Limit switch 21 Rotating component 224 Switching block 50 Fixed plate 211 Activity Space 225 Limit block 51 Storage space 212 First contact surface 23 pivot 511 Storage slot 213 Second contact surface 30 Support foot assembly 52 Separator 214 drive block 31 Rolling parts 53 support level 2141 First sub-block 32 elastic expansion tube 531 support groove 2142 Second sub-block 321 outer tube 60 Rotating shaft The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies both A and B.

[0023] This utility model proposes a vehicle ladder structure 100 for use in two-wheeled vehicles such as bicycles, electric two-wheelers, and electric motorcycles.

[0024] In this embodiment of the utility model, please refer to Figures 1 to 12The staircase structure 100 includes a drive assembly 10, a switching assembly 20, and a support leg assembly 30. The switching assembly 20 connects the drive assembly 10 and the support leg assembly 30, allowing the support leg assembly 30 to switch between a support position and a storage position. The switching assembly 20 includes a rotating member 21 and a switching member 22. The rotating member 21 is throttle-connected to the drive assembly 10 and rotates around a preset axis. The switching member 22 is circumferentially limited and connected to the support leg assembly 30. The rotating member 21 has a circumferentially extending movable space 211, and the switching member 22 is rotatably disposed within the movable space 211, allowing the switching member 22 to have both an electric drive state and a manual drive state. In the manual drive state, an external force acts on the support leg assembly 30 to drive the switching member 22 to rotate within the movable space 211, thereby allowing the support leg assembly 30 to switch between a support position and a storage position. In the electric drive state, the drive assembly 10 drives the rotating member 21 to circumferentially limit and abut against the switching member 22, thereby driving the support leg assembly 30 to switch between a support position and a storage position.

[0025] In this embodiment, the vehicle ladder structure 100 includes a drive assembly 10, a switching assembly 20, and a support leg assembly 30. The drive assembly 10 provides power output to enable the electric drive function of the vehicle ladder. The switching assembly 20 connects the drive assembly 10 and the support leg assembly 30, and is used to switch between electric drive and manual drive. The support leg assembly 30 supports the vehicle body when the vehicle is stopped, thereby maintaining the vehicle's balance.

[0026] The drive assembly 10 may include components such as a motor 11, an output shaft, and a gear set 12. The motor 11 serves as the power source, and the output shaft is connected to the gear set 12. The gear set 12 is connected to the switching assembly 20 for transmission, thereby driving the support foot assembly 30 to unfold or retract. In electric drive mode, the motor 11 is energized and rotates, driving the output shaft to rotate, which in turn allows the switching assembly 20 to switch the support foot assembly 30 between the supported position and the retracted position.

[0027] The switching assembly 20 includes a rotating member 21 and a switching member 22. The rotating member 21 is connected to the drive assembly 10 and is capable of rotating about a preset axis. The rotating member 21 has a movable space 211 extending circumferentially thereon, which accommodates the rotation of the switching member 22. The switching member 22 is rotatably disposed within the movable space 211 and is circumferentially limited and connected to the support foot assembly 30, thereby enabling the switching member 22 to drive the support foot assembly 30 to rotate. The switching member 22 may have a protruding prism, and the support foot assembly 30 has a groove adapted to the protruding prism, so as to achieve circumferential limitation and connection of the switching member 22 to the support foot assembly 30.

[0028] In different implementations, the movable space 211 can adopt various structural forms. For example, the movable space 211 can be an arc-shaped groove on the rotating member 21, with one end of the switching member 22 inserted into the arc-shaped groove; or it can be formed by split rotating blocks to create relatively spaced segments, so that the switching member 22 can rotate between the two rotating blocks. There are no restrictions here. It is only necessary to realize the limited movement of the switching member 22 relative to the rotating member 21, so as to ensure reliable torque transmission during electric drive and flexible mechanical clearance during manual drive.

[0029] Specifically, in electric drive mode, the drive assembly 10 starts and drives the rotating component 21 to rotate. The rotating component 21 and the switching component 22 abut in the circumferential direction, thereby driving the switching component 22 to rotate as well. This, in turn, drives the support foot assembly 30 to rotate from the storage position to the support position or to retract in the opposite direction, realizing automatic unfolding and retraction. In manual drive mode, the user can apply external force to the support foot assembly 30 with their foot, causing the support foot assembly 30 to drive the switching component 22 to rotate freely within the movable space 211 of the rotating component 21, thereby realizing the unfolding or retraction of the support foot assembly 30. At this time, the drive assembly 10 can stop operating, and the switching component 22 rotates relative to the motor 11 within the movable space 211 to ensure smooth operation without being affected by the motor 11's obstruction. This overcomes the shortcomings of traditional electric structures that cannot be manually operated due to rigid gear meshing or motor 11 braking. In other words, the movable space 211 provides a certain degree of mechanical freedom, allowing the switching component 22 to break free from the forced restriction of the drive assembly 10 and realize manual operation.

[0030] The vehicle ladder structure 100 of this utility model includes a drive assembly 10, a switching assembly 20, and a support foot assembly 30. The switching assembly 20 connects the drive assembly 10 and the support foot assembly 30, so that the support foot assembly 30 has a supporting position and a storage position. The switching assembly 20 includes a rotating member 21 and a switching member 22. The rotating member 21 has a movable space 211 extending circumferentially therein, and the switching member 22 is rotatably disposed within the movable space 211. Due to the movable space 211, the switching member 22 can move relative to the rotating member 21 within a certain angle range, thereby realizing the switching between electric drive and manual drive modes. Specifically, when the drive assembly 10 is working, the edge of the movable space 211 forms rigid contact with the switching member 22 to achieve power output transmission; when the motor 11 is not working, the movable space 211 provides the switching member 22 with a free stroke, allowing the support foot assembly 30 to be driven by external force, thus realizing the natural switching between electric and manual drive modes. This improves the reliability and fault tolerance of the vehicle ladder structure 100, ensuring that vehicles can be parked safely under various conditions.

[0031] In one embodiment, reference is made to Figures 5 to 8The rotating member 21 has a first abutting surface 212 and abutting surface 213, which together form an active space 211. The switching member 22 has a first mating surface 221 that is circumferentially opposite to the first abutting surface 212 and a second mating surface 222 that is circumferentially opposite to the second abutting surface 213. When the first abutting surface 212 abuts against the first mating surface 221, the driving component 10 can drive the rotating member 21 to rotate the switching member 22 to one of the positions of the support foot assembly 30 being in the support position and the storage position. At this position, the driving component 10 reverses so that the second abutting surface 213 abuts against the second mating surface 222, thereby allowing the switching member 22 to be electrically or manually rotated to the other position of the support foot assembly 30 being in the support position and the storage position.

[0032] In this embodiment, the rotating member 21 has a first abutting surface 212 and abutting surface 213, which are spaced apart from each other to form a circumferentially extending movable space 211. The switching member 22 correspondingly has a first mating surface 221 that is circumferentially opposite to the first abutting surface 212 and a second mating surface 222 that is circumferentially opposite to the second abutting surface 213. The switching member 22 is rotatably disposed within the movable space 211, thereby realizing two different transmission states when the first mating surface 221 abuts against the first abutting surface 212 or the second mating surface 222 abuts against the second abutting surface 213.

[0033] Specifically, when the first contact surface 212 abuts against the first mating surface 221, the drive assembly 10 can drive the rotating member 21 to rotate around a preset axis, thereby causing the switching member 22 to rotate synchronously, so that the support foot assembly 30 rotates from the storage position to the support position, or from the support position to the storage position. When the support foot assembly 30 rotates to the set limit position, the drive assembly 10 drives in the opposite direction, and the second contact surface 213 abuts against the second mating surface 222, so that the switching member 22 is in another transmission limit state. In this state, the rotating member 21 can be electrically driven to rotate, or the switching member can be manually driven to rotate along the movable space 211 under the action of external force, thereby switching the support foot assembly 30 to another position.

[0034] In this embodiment, the example of the support foot assembly 30 rotating from the retracted position to the supported position is taken when the first abutting surface 212 abuts against the first mating surface 221. When the drive assembly 10 is started, the motor 11 in the drive assembly 10 drives the rotating component 21 to rotate. The first abutting surface 212 of the rotating component 21 abuts against the first mating surface 221 of the switching component 22, thereby transmitting the torque output by the motor 11 to the support foot assembly 30 via the rotating component 21 and the switching component 22, causing the support foot assembly 30 to rotate from the retracted position to the supported position. During this process, when the speed of the motor 11 decreases and approaches a stall state, the control circuit controls the motor 11 to stop outputting or pause operation to avoid overloading the motor 11.

[0035] When the support foot assembly 30 is in the supported position, the motor 11 drives the rotating member 21 to rotate in the reverse direction, causing the second contact surface 213 of the rotating member 21 to abut against the second mating surface 222 of the switching member 22, placing the switching member 22 in another transmission limit state. At this time, an increase in current is detected, and the motor 11 stops. Simultaneously, to switch the support foot assembly 30 to the retracted position, the motor 11 can drive the rotating member 21 to rotate the switching member 22, thereby rotating the support foot assembly 30. Alternatively, the user can apply external force to the support foot assembly 30 with their foot or hand, causing the support foot assembly 30 to rotate the switching member 22 within the movable space 211 formed by the rotating member 21, thus achieving manual switching of the support foot assembly 30. Because the movable space 211 provides a free rotation range for the switching member 22 in the circumferential direction, the switching member 22 can break free from the forced limit driven by the motor 11, and the expansion or retraction of the support foot assembly 30 can still be achieved through manual operation.

[0036] Compared to the rigid engagement of traditional electric structures, this embodiment uses the automatic reversal of the motor 11, which makes the response speed of the motor 11 faster when the user needs to switch to another position, without the need to idle for a period of time after starting.

[0037] In one embodiment, the switching assembly 20 further includes a rotating shaft 23, and both the rotating member 21 and the switching member 22 are sleeved on the rotating shaft 23; the rotating member 21 has an abutting bottom surface 215, and a driving block 214 is protruding from the abutting bottom surface 215. The driving block 214 has a first abutting surface 212 and a second abutting surface 213 in its circumferential direction; the switching member 22 has a mating bottom surface 223 that is axially opposite to the abutting bottom surface 215, and a switching block 224 is protruding from the mating bottom surface 223. The switching block 224 has a first mating surface 221 and a second mating surface 222 in its circumferential direction; the driving block 214 and the switching block 224 are both located between the mating bottom surface 223 and the abutting bottom surface 215, and the switching block 224 rotates within the movable space 211.

[0038] In this embodiment, the first abutment surface 212 and the second abutment surface 213 intersect with the abutment bottom surface 215, preferably perpendicularly. The first mating surface 221 and the second mating surface 222 intersect with the mating bottom surface 223, preferably perpendicularly. The rotating component 21 and the switching component 22 are coaxially mounted on the rotating shaft 23. The driving block 214 and the switching block 224 are correspondingly located between the abutment bottom surface 215 and the mating bottom surface 223, and both are in the same rotation plane. With this structural arrangement, the circumferential engagement between the rotating component 21 and the switching component 22 is more stable, the transmission path is shorter, and the force transmission efficiency is higher. At the same time, the axially adjacent arrangement makes the overall structure of the switching assembly 20 more compact, reducing the gap between components and the installation space requirement, thereby contributing to the miniaturization of the vehicle ladder structure 100.

[0039] Secondly, both the drive block 214 and the switching block 224 are located between the mating bottom surface 223 and the abutting bottom surface 215. In other words, the drive block 214 may be located near, not near, or abutting the mating bottom surface 223, and the switching block 224 may be located near, not near, or abutting the abutting bottom surface 215. No restrictions are imposed here.

[0040] Furthermore, the drive block 214 includes a first sub-block 2141 and a second sub-block 2142, which are spaced apart around a preset axis; both the first sub-block 2141 and the second sub-block 2142 have a first abutting surface 212 and a second abutting surface 213, so that the first sub-block 2141 and the second sub-block 2142 respectively form an active space 211 on both sides in the circumferential direction; two switching blocks 224 are provided, and the two switching blocks 224 rotate in the two active spaces 211 respectively.

[0041] In this embodiment, the drive block 214 includes a first sub-block 2141 and a second sub-block 2142, which are spaced apart around a preset axis and located on opposite sides of the rotating member 21. Both the first sub-block 2141 and the second sub-block 2142 have a first abutment surface 212 and a second abutment surface 213, and the first sub-block 2141 and the second sub-block 2142 enclose two independent movable spaces 211.

[0042] The switching component 22 is correspondingly provided with two switching blocks 224, which are located in the two movable spaces 211 and can rotate within their respective spaces. When the drive assembly 10 drives the rotating component 21 to rotate, the contact surfaces of the first sub-block 2141 and the second sub-block 2142 respectively engage with the corresponding switching blocks 224, thereby applying a driving force to the switching component 22 simultaneously from both sides in the circumferential direction. This allows the switching component 22 to drive the support leg assembly 30 to rotate in a more balanced manner. By symmetrically arranging the first sub-block 2141 and the second sub-block 2142 on the rotating component 21, and cooperating with the two switching blocks 224, dual-point synchronous force transmission can be achieved. Compared with a single-sided drive structure, this symmetrical structure can significantly reduce off-center load and overturning moment when transmitting torque, making the rotation of the switching component 22 more stable and the unfolding and retraction of the support leg assembly 30 smoother. Meanwhile, the force distribution structure of the twin blocks can disperse the instantaneous impact load output by the motor 11, avoid local wear caused by single-block transmission, and improve the structural durability.

[0043] In one embodiment, the drive assembly 10 includes a motor 11 and a gear set 12, with the output shaft of the motor 11 connected to the gear set 12. The rotating member 21 also includes a gear portion fixedly connected to the drive block 214, with the bottom surface 215 formed on the gear portion. The gear portion is meshed with the gear set 12 so that the output speed of the motor 11 is reduced and transmitted to the gear portion, thereby driving the drive block 214 to rotate. By setting the meshing connection between the gear portion and the gear set 12, the output torque of the motor 11 can be smoothly transmitted, ensuring smooth and reliable switching action.

[0044] In one embodiment, the ladder structure 100 further includes a housing 40, in which the drive assembly 10 and the switching assembly 20 are both installed. The inner wall of the housing 40 is provided with a limit switch 41, and the switching member 22 is provided with a limiting block 225 protruding radially therefrom. When switching from the support position to the storage position, the limiting block 225 abuts against the limit switch 41 to stop the drive assembly 10.

[0045] In this embodiment, the limit switch 41 can be a mechanical structure. For example, the limit switch 41 includes a circuit board and a contact block that are electrically connected to each other. The contact block can be fixed to the inner wall of the housing 40, and the circuit board is electrically connected to the control circuit. When the limit block 225 triggers the limit switch 41, it indicates that the support foot 33 has reached the storage position 51. After triggering, the software reduces the detection stall torque, and the motor 11 reverses so that the first contact surface 212 abuts against the first mating surface 221. When the current increases, that is, when the first contact surface 212 abuts against the first mating surface 221, the motor 11 stops to achieve automatic stopping of the elevator. At this time, the support foot assembly 30 is in the storage position to prevent the support foot assembly 30 from rotating excessively.

[0046] In one embodiment, reference is made to Figure 11 The ladder structure 100 also includes a fixing plate 50, which is fixedly connected to the outer shell 40. The fixing plate 50 has a storage position 51, a partition position 52, and a support position 53. The partition position 52 is located between the storage position 51 and the support position 53, that is, the partition position 52 is formed at the connection between the storage position 51 and the support position 53. It is used to separate and guide the two switching states of the support leg assembly 30. The partition position 52 can be arc-shaped and smoothly transitions with the storage position 51 and the support position 53 respectively, so that the transition of the support leg assembly 30 is natural. In some embodiments, the partition position 52 can also have a partition plane so that the support leg assembly 30 can be temporarily stopped on the partition plane. This is not limited here. The support foot assembly 30 includes a rolling element 31, an elastic telescopic tube 32, and a support foot 33. The elastic telescopic tube 32 is rotatably connected to the fixed plate 50 via a rotating shaft 60. The rolling element 31 is rotatably connected to the elastic telescopic tube 32 and the fixed plate 50. The support foot 33 is fixedly connected to the elastic telescopic tube 32. The distance between the storage position 51 and the rotating shaft 60 gradually decreases from the partition position 52 to the storage position 51, and the distance between the support position 53 and the rotating shaft 60 gradually decreases from the partition position 52 to the support position 53. When the rolling element 31 switches from the partition position 52 to the storage position 51, it abuts against the wall of the storage position 51 under the action of elasticity, thereby driving the support foot 33 to switch to the storage position. When the rolling element 31 switches from the partition position 52 to the support position 53, it abuts against the wall of the support position 53 under the action of elasticity, thereby driving the support foot 33 to switch to the support position.

[0047] In this embodiment, the ladder structure 100 further includes a fixing plate 50, which is fixedly connected to the outer shell 40. The fixing plate 50 is provided with a storage position 51, a partition position 52, and a support position 53. The partition position 52 is located between the storage position 51 and the support position 53, and is used to guide the support foot assembly 30 to switch smoothly between different positions. The support foot assembly 30 includes a rolling element 31, an elastic telescopic tube 32, and a support foot 33. The elastic telescopic tube 32 is rotatably connected to the fixing plate 50 through a rotating shaft 60, forming a support structure that can rotate around the rotating shaft 60. The rolling element 31 is rotatably connected between the elastic telescopic tube 32 and the fixing plate 50, and the support foot 33 is fixedly connected to the end of the elastic telescopic tube 32. The rolling element 31 can be a rolling structure such as a ball bearing or a roller.

[0048] The elastic telescopic tube 32 may have an internal elastic element 323, such as a spring or elastic sleeve, to generate a pre-compression force when the rolling element 31 moves, ensuring the return capability and buffering effect of the support foot assembly 30 during the switching process. When the rolling element 31 switches from the separating position 52 to the retracted position 51, the rolling element 31 abuts against the wall of the retracted position 51 under the action of elastic force, thereby driving the support foot 33 to rotate to the retracted position, realizing the retraction action of the vehicle support foot 33. Conversely, when the rolling element 31 switches from the separating position 52 to the support position 53, the rolling element 31 abuts against the wall of the support position 53 under the action of elastic force, driving the support foot 33 to rotate to the support position, realizing stable support for the vehicle. In some other embodiments, refer to Figure 12 Alternatively, the rolling element 31 can be omitted, and the elastic telescopic tube 32 can be rotatably connected to the outer shell 40 and the support foot 33 respectively.

[0049] It is worth noting that the distance between the storage position 51 and the rotating shaft 60 gradually decreases from the separating position 52 towards the storage position 51, and the distance between the support position 53 and the rotating shaft 60 gradually decreases from the separating position 52 towards the support position 53. This ensures that the rolling element 31 generates a smooth radial movement path along the surface of the fixed plate 50 during the switching process, preventing the support foot 33 from jumping or getting stuck. The elastic element 323 inside the elastic telescopic tube 32 can absorb impact energy during the switching process and provide a smooth return force, enabling the support foot assembly 30 to be reliably positioned in the storage or support position.

[0050] In one embodiment, the peripheral wall of the fixing plate 50 is provided with a storage groove 511 and a support groove 531. The storage groove 511 forms a storage position 51, and the support groove 531 forms a support position 53. The bottom walls of the storage groove 511 and the support groove 531 are arranged in a convex arc. A partition position 52 is formed at the corner of the peripheral wall of the fixing plate 50.

[0051] In this embodiment, the adjacent side walls of the fixing plate 50 are respectively provided with a storage groove 511 and a support groove 531. The storage groove 511 forms a storage position 51, and the support groove 531 forms a support position 53. The storage groove 511 is located above the support groove 531. The bottom walls of the storage groove 511 and the support groove 531 are convex arcs to provide a smooth movement trajectory for the rolling element 31, so that the support foot assembly 30 can rotate along the arc path when switching between the storage position and the support position 53, thereby avoiding jamming or shaking during the switching process. A separation position 52 is formed at the corner of the peripheral wall of the fixing plate 50 to realize a natural transition between the two grooves, thus making the structure simpler and more compact.

[0052] In one embodiment, the elastic telescopic tube 32 includes an outer tube 321, an inner tube 322, and an elastic element 323. One end of the outer tube 321 is rotatably connected to the fixed plate 50, and the other end is fixedly connected to the support foot 33. The inner tube 322 is movably inserted into the outer tube 321, and the rolling element 31 is rotatably connected to the inner tube 322. The opposite ends of the elastic element 323 abut against the support foot 33 and the inner tube 322, respectively.

[0053] In this embodiment, the elastic element 323 can be a spring or other structure made of elastic materials such as silicone or rubber to provide pre-pressure and buffering force during the switching process of the rolling element 31 or the support foot 33. When the support foot 33 switches between the storage position 51 and the support position 53, the elastic element 323 controls the return or buffering of the support foot 33 through elasticity to achieve smooth movement.

[0054] Compared to external elastic element 323, placing elastic element 323 inside inner tube 322 can prevent elastic element 323 from directly contacting liquids and soil, thereby preventing elastic element 323 from rusting, aging, etc. At the same time, it can prevent exposed springs from being collided or twisted during transportation, thus affecting elastic force.

[0055] This utility model also proposes a two-wheeled vehicle, which includes a vehicle body and a ladder structure 100. The specific structure of the ladder structure 100 is as described in the above embodiments. Since this two-wheeled vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. Among them, the ladder structure 100 is fixedly connected to the vehicle body.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A ladder structure, characterized in that, It includes a drive component, a switching component, and a support foot component. The switching component connects the drive component and the support foot component, allowing the support foot component to switch between a supporting position and a retracted position. The switching component includes a rotating component and a switching component. The rotating component is throttledly connected to the driving component and rotates around a preset axis. The switching component is circumferentially limited and connected to the support foot component. The rotating component has an active space extending along its circumference. The switching component is rotatably disposed within the active space so that the switching component has an electric drive state and a manual drive state. In the manual drive state, an external force is applied to the support leg assembly to drive the switching member to rotate within the active space, thereby causing the support leg assembly to switch between the support position and the storage position. In the electric drive state, the drive assembly drives the rotating member to circumferentially limit and abut against the switching member, thereby causing the support foot assembly to switch between the support position and the storage position.

2. The vehicle ladder structure as described in claim 1, characterized in that, The rotating component has a first abutting surface and a second abutting surface, and the first abutting surface and the second abutting surface enclose the movable space; The switching component has a first mating surface that is circumferentially opposite to the first abutting surface, and a second mating surface that is circumferentially opposite to the second abutting surface; When the first abutting surface abuts against the first mating surface, the driving component can drive the rotating component to rotate the switching component to one of the positions of the support foot assembly being in the support position and the storage position. At this position, the driving component reverses so that the second abutting surface abuts against the second mating surface, thereby enabling the switching component to be electrically or manually rotated to another position of the support foot assembly being in the support position and the storage position.

3. The vehicle ladder structure as described in claim 2, characterized in that, The switching component further includes a rotating shaft, and both the rotating component and the switching component are sleeved on the rotating shaft; The rotating component has an abutting bottom surface, and a driving block is protruding from the abutting bottom surface. The driving block has a first abutting surface and a second abutting surface in its circumferential direction. The switching component has a mating bottom surface that is axially opposite to the abutting bottom surface. The mating bottom surface is provided with a switching block, and the switching block has a first mating surface and a second mating surface along its circumference. Both the driving block and the switching block are located between the mating bottom surface and the abutting bottom surface, and the switching block rotates within the movable space.

4. The ladder structure as described in claim 3, characterized in that, The drive block includes a first sub-block and a second sub-block, which are spaced apart around the preset axis; both the first sub-block and the second sub-block have a first abutting surface and a second abutting surface, so that the first sub-block and the second sub-block respectively form the active space on both sides in the circumferential direction; There are two switching blocks, and the two switching blocks rotate in the two activity spaces respectively.

5. The ladder structure as described in claim 4, characterized in that, The drive assembly includes a motor and a gear set, with the output shaft of the motor connected to the gear set; The rotating component also includes a gear portion fixedly connected to the drive block, the abutting bottom surface is formed on the gear portion, and the gear portion is meshed with the gear set.

6. The vehicle ladder structure as described in claim 1, characterized in that, The vehicle ladder structure also includes a housing, and the drive assembly and the switching assembly are both installed inside the housing. The inner wall of the housing is provided with a limit switch, and the switching component has a limit block protruding along its radial direction. When the support position is switched to the storage position, the limit block abuts against the limit switch to stop the drive component.

7. The vehicle ladder structure as described in claim 6, characterized in that, The vehicle ladder structure also includes a fixing plate, which is fixedly connected to the outer shell. The fixing plate has a storage position, a partition position, and a support position, with the partition position located between the storage position and the support position. The support leg assembly includes a rolling element, an elastic telescopic tube, and a support leg. The elastic telescopic tube is rotatably connected to the fixed plate via a rotating shaft. The rolling element is rotatably connected to the elastic telescopic tube and the fixed plate. The support leg is fixedly connected to the elastic telescopic tube. The distance between the storage position and the rotating shaft gradually decreases from the dividing position towards the storage position, and the distance between the support position and the rotating shaft gradually decreases from the dividing position towards the support position. When the separating position is switched to the storage position, the rolling element abuts against the wall of the storage position under the action of elasticity, so as to drive the support foot to switch to the storage position; When the separating position is switched to the supporting position, the rolling element abuts against the wall of the supporting position under the action of elasticity, so as to drive the supporting foot to switch to the supporting position.

8. The ladder structure as described in claim 7, characterized in that, The peripheral wall of the fixing plate is provided with a storage groove and a support groove. The storage groove forms the storage position, and the support groove forms the support position. The bottom walls of the storage groove and the support groove are arranged in a convex arc. The partition position is formed at the corner of the peripheral wall of the fixing plate.

9. The ladder structure as described in claim 7, characterized in that, The elastic telescopic tube includes an outer tube, an inner tube, and an elastic element. One end of the outer tube is rotatably connected to the fixed plate, and the other end is fixedly connected to the support leg. The inner tube is movably inserted into the outer tube, and the rolling element is rotatably connected to the inner tube; the opposite ends of the elastic element abut against the support foot and the inner tube, respectively.

10. A two-wheeled vehicle, characterized in that, It includes a vehicle body and a vehicle ladder structure as described in any one of claims 1 to 9, wherein the vehicle ladder structure is fixedly connected to the vehicle body.

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