Stairway walker

Abstract

This utility model discloses a stairwell mobility aid, relating to the technical field of stairwell elevators. It includes a base with a control module connected inside. A pedal is rotatably connected to the bottom of the base, and the pedal is connected to a drive structure. A seat is connected to the top of the base. A switch for controlling the drive structure is located below the seat. The seat and switch abut against each other, and both the switch and drive structure are electrically connected to the control module. This utility model minimizes space occupation. When not in use, the pedal and seat can be folded vertically along with the backrest. Its overall thickness is small, significantly reducing obstruction of public corridor passages. It unfolds with a single button press; pressing down the button on the seat automatically drives the pedal to unfold horizontally, requiring zero learning curve. The base employs a double safety interlock, with a mechanical interlock between the seat and pedal to prevent the dangerous situation of "pedestal retraction before the person is properly seated." A light sensor on the handrail detects ambient light before allowing the system to power on.

Description

Technical Field

[0001] This utility model relates to the technical field of stairwell elevators, and in particular to a stairwell mobility aid. Background Technology

[0002] Existing stairlift equipment is mainly divided into two categories: fixed-pedal chairlifts and foldable-pedal stair climbers. Fixed-pedal chairlifts have pedals that always extend horizontally outwards, occupying at least 400 mm of stairwell width, obstructing wheelchair access and pedestrian traffic. Foldable-pedal stair climbers require manual folding of the pedals, which is difficult for users with limited strength or those carrying items with both hands; furthermore, the lack of mechanical linkage between the pedals and seat increases the risk of injury from the pedals retracting before the seat is folded down. The control system is simple: most products only have handrail buttons, lacking multiple safety logics such as seat position detection and ambient light detection, resulting in a high probability of accidental activation. Maintenance is inconvenient: electrical and hydraulic components are mixed in the same cavity, requiring complete disassembly for on-site maintenance, with an average maintenance time exceeding 1 hour, impacting equipment availability. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide a stairwell mobility aid to solve the above-mentioned problems.

[0004] Technical solution

[0005] A stairwell mobility aid includes a base, a control module connected inside the base, a pedal rotatably connected to the lower part of the base, a drive structure connected to the pedal, a seat connected to the upper part of the base, and a linkage switch for controlling the drive structure provided below the seat on the base. The seat and the linkage switch abut against each other, and both the linkage switch and the drive structure are electrically connected to the control module.

[0006] Preferably, the upper end of the base is fixedly connected to a backrest, and the seat cushion and the backrest are rotatably connected.

[0007] Preferably, the base has armrests on both sides of the seat cushion, and the end of the armrest has a control switch for controlling the drive structure. The control switch is electrically connected to the control module.

[0008] Preferably, the handrail is rotatably mounted.

[0009] Preferably, a light sensor is provided on the side of the armrest near the seat cushion, and the light sensor is electrically connected to the control module.

[0010] Preferably, the base has a control cavity and a drive cavity, the control module is fixedly connected to the inner wall of the control cavity, and the drive structure is connected to the inner wall of the drive cavity.

[0011] Preferably, the drive structure includes a propulsion structure, the propulsion structure being connected to a rocker arm, and the rocker arm being connected to the pedal.

[0012] Preferably, the sidewall of the base is connected to a transmission structure for movement, the transmission structure including a drive frame.

[0013] Preferably, the base has a support frame on one side of the transmission structure, and the support frame is connected to the traction steel pipe.

[0014] Beneficial effects: Minimal space occupation; when not in use, the pedals and seat cushion can be folded vertically along with the backrest, resulting in a smaller overall thickness and significantly reducing obstruction of public passageways. One-button linkage unfolding: pressing down the seat cushion triggers a push mechanism that automatically unfolds the pedals horizontally, requiring zero learning curve. The base employs a dual safety interlock: a mechanical interlock between the seat cushion and pedals prevents the dangerous situation of "pedestrians not properly seated before the pedals retract." A light sensor on the armrest detects ambient light before powering on the system, preventing accidental activation. Modular maintenance is also employed; the base's internal control and drive chambers are physically isolated, with electrical and hydraulic / pneumatic components arranged in separate zones, allowing for module-level replacement during on-site maintenance within minutes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall back structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model;

[0018] Figure 4 This is a schematic diagram of the linkage switch structure of this utility model.

[0019] Reference numerals: 11. Base; 12. Pedal; 13. Seat cushion; 14. Backrest; 15. Armrest; 16. Control cavity; 17. Drive cavity; 18. Drive frame; 19. Support frame; 22. Control module; 23. Propulsion structure; 24. Rocker arm; 25. Control switch; 26. Linkage switch; 27. Light sensor. Detailed Implementation

[0020] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0021] like Figure 1As shown, a stairwell mobility aid includes a base 11. The base 11 serves as the main structure of the entire stairwell mobility aid, carrying all functional modules and directly connecting to the stairwell track system. It is the foundation for realizing the movement and stable operation of the equipment.

[0022] The main structure of the base 11 is the skeleton of the entire stairwell mobility device, and its design must balance lightweight and high strength. It is usually made of high-strength aluminum alloy or high-quality steel to ensure that it can withstand various stresses and vibrations generated during movement while bearing the user's weight.

[0023] The back of the base 11 is connected to the track system, ensuring that the mobility scooter can move smoothly and safely along a predetermined path. The front of the base 11 connects to the pedals 12, seat 13, backrest 14, and armrests 15, which are parts that the user directly contacts; the rationality of their design directly affects the user experience and safety. The interior of the base 11 is divided into different functional cavities, such as the control cavity 16 and the drive cavity 17. This modular design facilitates production, assembly, and maintenance, while also improving the system's reliability and safety. Physical isolation separates the electrical control system from the mechanical drive system, reducing the risk of mutual interference.

[0024] like Figure 2 As shown, the back of the base 11 is connected to a drive structure, which is a common existing technology that can be selected and adjusted according to existing technology. It is used to control the movement of the entire mobility device on the stairs. In this embodiment, the drive structure includes a drive frame 18 and a support frame 19. Corresponding transmission steel pipes are fixedly installed on the stair escalator, and the transmission steel pipes are double-pipe structures. The drive frame 18 and the support frame 19 are respectively connected to the two transmission steel pipes. They work together to enable the mobility device to run smoothly and reliably on the stair rail.

[0025] like Figure 3 As shown, the base 11 contains a control cavity 16 and a drive cavity 17. The control cavity 16, located at the center of the base 11, is the "brain" of the entire stairwell mobility device. This sealed cavity houses the control module 22 and the battery, responsible for processing all sensor signals, executing user commands, and managing power distribution. The control module 22 typically employs a high-performance microcontroller (MCU) or programmable logic controller (PLC).

[0026] The control chamber 16 typically employs a sealed design and is equipped with waterproof and dustproof sealing rings to protect the internal electronic components from adverse factors such as moisture and dust in the corridor environment. Simultaneously, the chamber material may be a metal with good heat dissipation properties, or internal heat sinks may be designed to ensure that the control module and battery maintain a stable operating temperature during prolonged operation.

[0027] The drive cavity 17 is located on one side of the control cavity 16. The drive cavity 17 primarily houses the propulsion structure 23, which is mainly composed of a telescopic cylinder or hydraulic cylinder, and connected transmission components such as a telescopic rod, rack, rocker arm, and crank. In this embodiment, the transmission component is a rocker arm 24. The control cavity 21 is adjacent to the drive cavity 20 and transmits control signals to the propulsion structure through internal wiring to achieve precise control of actions such as the flipping of the pedal 12. An opening is provided on the lower side of the drive cavity 17, allowing the end of the rocker arm 24 to extend and rotatably connect with the pedal 12. The design of this opening needs to balance flexibility and sealing, ensuring that the rocker arm 24 can move freely up and down while preventing dust and foreign objects from entering the drive cavity as much as possible. The propulsion structure 23 within the drive cavity 17 receives commands from the control module 22, converting electrical energy into mechanical energy to drive the rocker arm 24, thereby achieving the flipping of the pedal 12.

[0028] The base 11 is connected to the upper end with a seat cushion 13, a backrest 14 and an armrest 15. The backrest 14 is fixed to the upper side of the base 11. The bottom of the seat cushion 13 and the backrest 14 are rotatably connected. Meanwhile, the armrest 15 is fixedly installed on both sides of the backrest 14. The operation of the armrest 15 is not affected when the seat cushion 13 is flipped.

[0029] To facilitate user operation, control switches 25 are provided at the ends of the handrail 15. These switches 25 are electrically connected to the control module 22, allowing users to control the start, stop, acceleration, and deceleration functions of the stairwell mobility aid by pressing different buttons. Placing the control switches 25 on the handrail 15 allows users to easily operate the device while gripping it, eliminating the need to release their grip to find other control panels, greatly improving ease of use and safety. The control switches are typically designed with a waterproof and dustproof structure to adapt to the stairwell environment. The tactile feedback of the buttons is also carefully designed to ensure that users can clearly perceive whether the operation was successful.

[0030] To further enhance safety, especially when users are getting on and off the device, a light sensor 27 is installed on the side of the armrest 15 near the seat cushion 13. The light sensor 27 is electrically connected to the control module 22 and can monitor the area around the armrest 15 in real time. When the light sensor 27 detects light, it sends a signal to the control module 22. The control module 22 can take corresponding safety measures according to preset logic, and can turn on the power to the drive structure and propulsion structure in advance to facilitate the operation of the mobility scooter.

[0031] like Figure 4As shown, the base 11 has a linkage switch 26 below the seat cushion 13. The linkage switch 26 is connected to the control module 22. The linkage switch 26 is used to control the operation of the drive structure 23. When the seat cushion 13 flips upward, the pedal 12 flips upward as well. When the seat cushion 13 flips to the horizontal, the pedal 12 unfolds as well. Therefore, the linkage switch 26 is a trigger switch. When the seat cushion 13 flips to the horizontal and presses the linkage switch 26, the push structure 23 controls the pedal 12 to unfold. When the seat cushion 13 separates from the linkage switch 26, the push structure 23 controls the pedal 12 to retract.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A stairwell mobility aid, comprising a base, characterized in that, A control module is connected inside the base. A pedal is rotatably connected to the bottom of the base. The pedal is connected to a drive structure. A seat is connected to the top of the base. A linkage switch for controlling the drive structure is provided below the seat on the base. The seat and the linkage switch abut against each other. Both the linkage switch and the drive structure are electrically connected to the control module.

2. The stairwell mobility aid according to claim 1, characterized in that, The upper end of the base is fixedly connected to a backrest, and the seat cushion and the backrest are rotatably connected.

3. The stairwell mobility aid according to claim 2, characterized in that, The base has armrests on both sides of the seat cushion, and the end of the armrest is provided with a control switch for controlling the drive structure. The control switch is electrically connected to the control module.

4. The stairwell mobility aid according to claim 3, characterized in that, The handrail is rotatably installed.

5. A stairwell mobility aid according to claim 3, characterized in that, A light sensor is provided on the side of the armrest near the seat cushion, and the light sensor is electrically connected to the control module.

6. A stairwell mobility aid according to claim 1, characterized in that, The base has a control cavity and a drive cavity. The control module is fixedly connected to the inner wall of the control cavity, and the drive structure is connected to the inner wall of the drive cavity.

7. A stairwell mobility aid according to claim 6, characterized in that, The drive structure includes a propulsion structure, which is connected to a rocker arm, and the rocker arm is connected to the pedal.

8. A stairwell mobility aid according to claim 1, characterized in that, The base has a transmission structure for movement connected to its side wall, the transmission structure including a drive frame.

9. A stairwell mobility aid according to claim 8, characterized in that, The base has a support frame on one side of the transmission structure, and the support frame is connected to the traction steel pipe.

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