Auxiliary uphill and downhill device for wheelchair in barrier-free channel
By installing electric attachments and correction units on the handrails of accessible pathways, wheelchair-assisted ramp devices have been developed to address the stability and safety issues of wheelchairs when moving on sloping sections, thereby improving the convenience and safety of electric wheelchairs.
Patent Information
- Application Number
- CN202511763714.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-02-17
AI Technical Summary
When wheelchairs on existing accessible pathways move on sloping sections, they lack dedicated assistive structures, making traditional assistance methods physically demanding and unable to guarantee stability and safety. In particular, electric wheelchairs struggle to achieve both convenience and safety when moving over long distances on slopes.
A wheelchair-assisted ramp device for accessible passageways, installed on the handrails, was designed. It includes an electric attachment, an axial drive unit, and a correction unit. The electric attachment drives the wheelchair to move, the axial drive unit provides assistance, and the correction unit ensures the stability of movement. The overall structure is driven by a motor and precisely controlled by a controller.
It enables wheelchairs to move stably and safely up and down slopes on barrier-free access routes, reducing the need for manual assistance and improving the convenience and safety of travel for people with disabilities.
Smart Images
Figure CN121536863A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of road engineering, in particular to a wheelchair auxiliary uphill and downhill device for barrier-free passageway. BACKGROUND
[0002] The barrier-free passageway is a special passageway for facilitating the travel of the disabled, is a basic condition for the disabled to participate in social life, embodies the humanistic care for the disabled, and is an important symbol of social civilization and progress. When the existing wheelchair for the disabled moves on the slope section of the barrier-free passageway, it needs to rely on others to push or the disabled to laboriously control, and especially when descending, it is easy to cause safety hazards due to uncontrollable speed. The traditional auxiliary mode has no special power assisting structure, and only manual support by the handrail consumes physical strength and cannot guarantee the stability of movement; for the electric wheelchair, if the wheelchair has insufficient power, it is difficult to complete long distance slope movement, which seriously affects the convenience and safety of the disabled in use, and the core reason is that no auxiliary driving structure is designed to adapt to the handrail of the barrier-free passageway.
[0003] Therefore, there is an urgent need for a wheelchair auxiliary uphill and downhill device for barrier-free passageway, which can assist the wheelchair to stably and safely move up or down along the passageway handrail, and help to improve the convenience of travel. SUMMARY
[0004] The present application relates to the technical field of road engineering, in particular to a wheelchair auxiliary uphill and downhill device for barrier-free passageway.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The present application provides a wheelchair auxiliary uphill and downhill device for barrier-free passageway, which is installed on a passageway handrail and comprises: A first housing and an electric hanging piece, the first housing is sleeved on the passageway handrail, the first end of the electric hanging piece is rotatably connected to the outer side wall of the first housing, and the second end of the electric hanging piece is detachably connected with a wheelchair handrail; An axial driving unit, the axial driving unit is installed in the first housing, and the first housing moves on and along the passageway handrail through the axial driving unit; A deviation correcting unit, the deviation correcting unit is installed between the first housing and the passageway handrail, and the first housing is located in the vertical plane of the passageway handrail axis through the deviation correcting unit.
[0006] Preferably, the axial driving unit comprises: A first driving wheel and a second driving wheel are rotatably connected in the first shell and symmetrically cover both sides of the channel handrail, and the first driving wheel and the second driving wheel are rollingly fitted on the channel handrail along the axial direction. A first motor is fixedly connected in the first shell and rotatably connected with the first driving wheel and the second driving wheel.
[0007] Preferably, the electric pendant comprises: A synchronous rod, a first end of the synchronous rod is rotatably connected to the outer side wall of the first shell, and a middle end of the synchronous rod is clamped to the outer side wall of the first shell. An electric hook, the electric hook is rotatably connected to a second end of the synchronous rod and detachably connected with the wheelchair handrail.
[0008] Preferably, the electric hook comprises: An upper clamping body and a lower clamping body, the upper clamping body is rotatably connected to the second end of the synchronous rod, and the lower clamping body is rotatably connected to a first end of the upper clamping body. A third motor is fixed to the first end of the upper clamping body, the lower clamping body is driven by the third motor, and the upper clamping body and the lower clamping body are clamped on the wheelchair handrail by the third motor.
[0009] Preferably, the deviation rectifying unit is applicable to the independent channel handrail, and the deviation rectifying unit comprises: A guide groove is formed in the top side wall of the channel handrail along the extension direction of the channel handrail; A second shell and a guide wheel, the second shell is fixedly connected to the outer side wall of the first shell, and the guide wheel is rotatably connected in the second shell and rollingly fitted in the guide groove.
[0010] Preferably, the deviation rectifying unit is applicable to the independent channel handrail, and the deviation rectifying unit comprises: A second shell and a guide bracket, the second shell is fixedly connected to the outer side wall of the first shell, and a middle end of the guide bracket is rotatably connected to the top inner side wall of the second shell; An elastic telescopic rod and a circumferential driving part, the elastic telescopic rod is hinged between the first end of the guide bracket and the top inner side wall of the second shell, the first end of the guide bracket is abutted on the channel handrail by the elastic telescopic rod and slides on the top wall of the channel handrail, and the circumferential driving part is installed at the second end of the guide bracket, so that the second shell, the first shell and the axial driving unit are circumferentially deflected relative to the channel handrail by the circumferential driving part.
[0011] Preferably, the circumferential driving part comprises: A second motor fixedly connected to the second end of the guide support; A driving wheel group, two groups of the driving wheel group are rotatably connected to the second end of the guide support and symmetrically located on both sides of the passage handrail, the driving wheel group is rolling fitted on the passage handrail along the axial direction, and the two groups of the driving wheel group are driven to rotate in the same direction by the second motor, so that the second shell, the first shell and the axial driving unit are circumferentially deflected relative to the passage handrail.
[0012] Preferably, the deviation rectifying unit is suitable for the passage handrail provided with a railing, and the deviation rectifying unit comprises: A limiting plate, two groups of the limiting plate are symmetrically mounted on both sides of the bottom of the first shell and slidingly connected to both sides of the railing below the passage handrail, and the length of the limiting plate is not less than the distance between adjacent railings; An avoiding passage is arranged in the bottom of the first shell and used for avoiding the railing.
[0013] Preferably, the deviation rectifying unit further comprises: A plurality of rollers are rotatably connected to the opposite surfaces of the two groups of limiting plates, respectively, and the rollers are rolling fitted on the railing.
[0014] Preferably, the electric hook comprises: An upper clamping body and a lower clamping body, the upper clamping body is rotatably connected to the second end of the synchronous rod, the lower clamping body is rotatably connected to the first end of the upper clamping body, and the upper clamping body and the lower clamping body are clamped on the wheelchair handrail by electromagnetic force.
[0015] In the technical scheme, the electric hook is rotatably connected to the first shell, the electric hook is fixed on the side wall of the first shell when not in use, the electric hook is installed on the wheelchair handrail by turning over and moving the second end close to the wheelchair handrail when in use, the axial driving unit is mainly used for driving the first shell and the electric hook to move up or down along the passage handrail, and the wheelchair is driven to move synchronously by the electric hook, so that the assistance of others can be saved, and the operation difficulty of the disabled person can be reduced, the deviation rectifying unit is mainly used for ensuring the stable connection between the first shell and the passage handrail during movement, that is, preventing the circumferential deflection of the first shell relative to the passage handrail, avoiding the deviation of the moving track of the wheelchair or the uncontrollability of the moving track, and the stability and safety of the wheelchair moving along the passage handrail are improved. Overall, the application can assist the wheelchair to stably and safely move up or down along the passage handrail, and the convenience of travel is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.
[0017] Figure 1 is a first shell, a second shell and an electric hanging piece in a front view direction of embodiment 1 of the present application; Figure 2 is a cross-sectional view of the first shell along the axis direction of the passage handrail of embodiment 1 of the present application; Figure 3 is a cross-sectional view of the first shell along the axis direction of the passage handrail of embodiment 1 of the present application; Figure 2 is an enlarged view of A in Figure 4 is a cooperation view of the guide wheel and the guide slot of embodiment 1 of the present application; Figure 5 is a cross-sectional view of the guide slot along the axis direction of the passage handrail of embodiment 1 of the present application; Figure 6 is a cooperation view of the deviation rectifying unit and the passage handrail in a front view direction of embodiment 2 of the present application; Figure 7 is a cooperation view of the deviation rectifying unit and the passage handrail along the axis direction of the passage handrail of embodiment 2 of the present application; Figure 8 is a cooperation view of the first shell and the limiting plate in a front view direction of embodiment 3 of the present application; Figure 9 is a cooperation view of the first shell and the limiting plate along the axis direction of the passage handrail of embodiment 3 of the present application; Figure 10 is a cooperation view of the limiting plate and the roller of embodiment 3 of the present application.
[0018] 1-passage handrail; 2-first shell; 3-second shell; 4-synchronous rod; 5-clamping assembly; 6-rubber pad; 7-clip; 8-first gear; 9-first motor; 10-second gear; 11-battery; 12-first driving wheel; 13-second driving wheel; 14-baffle; 15-third gear; 16-fixed support; 17-upper clamping body; 18-lower clamping body; 19-fourth gear; 20-guiding support; 21-second motor; 22-driving wheel set; 23-elastic telescopic rod; 24-guide wheel; 25-rotation shaft; 26-frame; 27-wheel; 28-guide slot; 29-limiting plate; 30-railing; 31-avoidance passage; 32-roller. DETAILED DESCRIPTION
[0019] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.
[0020] Embodiment 1 With reference to Figures 1-3 , the specific embodiments of the present application provide a barrier-free channel wheelchair auxiliary uphill and downhill device, which is installed on a channel handrail 1 and comprises: a first shell 2 and an electric hanging piece, the first shell 2 is sleeved on the channel handrail 1, the first end of the electric hanging piece is rotatably connected to the outer side wall of the first shell 2, and the wheelchair handrail is detachably connected to the second end of the electric hanging piece; an axial driving unit, the axial driving unit is installed in the first shell 2, and the first shell 2 moves on and along the channel handrail 1 through the axial driving unit; a deviation rectifying unit, the deviation rectifying unit is installed between the first shell 2 and the channel handrail 1, and the first shell 2 is located in the vertical plane of the channel handrail 1 axis through the deviation rectifying unit.
[0021] When the existing wheelchair for the disabled moves on the barrier-free channel slope section, it needs to rely on others to push or the disabled to laboriously control, especially when going downhill, which is easy to cause safety hazards due to uncontrollable speed. The traditional auxiliary mode has no special power assisting structure, and only manual support by the handrail, which not only consumes physical strength, but also cannot guarantee the stability of movement; for the electric wheelchair, if the wheelchair has insufficient power, it is difficult to complete long distance slope movement, which seriously affects the convenience and safety of the disabled in use, and the core reason is that no auxiliary driving structure adapted to the barrier-free channel handrail is designed. In the present application, the electric hanging piece is rotatably connected to the first shell 2, the electric hanging piece is fixed on the side wall of the first shell 2 when the electric hanging piece is not used, the electric hanging piece is turned over and the second end thereof is close to the wheelchair handrail when the electric hanging piece is needed, and then the electric hanging piece is installed on the wheelchair handrail; the main function of the axial driving unit is to drive the first shell 2 and the electric hanging piece to move upward or downward along the channel handrail 1 (inclined arrangement), and the wheelchair is driven to move synchronously through the electric hanging piece, so that the assistance of others can be saved, and the operation difficulty of the disabled can also be reduced; the main function of the deviation rectifying unit is to ensure the stable connection state between the first shell 2 and the channel handrail 1 during movement, that is, to prevent the first shell 2 from being circumferentially deflected relative to the channel handrail 1, so as to avoid the movement track of the wheelchair from being deviated or uncontrollable. By such arrangement, the stability and safety of the wheelchair moving along the channel handrail 1 are improved. Overall, the present application can assist the wheelchair to stably and safely move upward or downward along the channel handrail 1, which helps to improve the convenience of travel.
[0022] In a further optimized design, the axial drive unit includes a first drive wheel 12, a second drive wheel 13, and a first motor 9. The first drive wheel 12 and the second drive wheel 13 are rotatably connected inside the first housing 2 and symmetrically cover both sides of the passage handrail 1. The first drive wheel 12 and the second drive wheel 13 roll along the axial direction of the passage handrail 1 and engage with the passage handrail 1. The first motor 9 is fixedly connected inside the first housing 2 and rotatably connected to the first drive wheel 12 and the second drive wheel 13.
[0023] refer to Figures 2-3 The surfaces of the first drive wheel 12 and the second drive wheel 13 are covered with a rubber layer. The middle ends of the first drive wheel 12 and the second drive wheel 13 are concave along the radial direction, thus tightly covering the surface of the passage handrail 1. The circumferential covering area is greater than half the circumference of the cross-section of the passage handrail 1. Figure 2 As shown, this design increases the contact area between the first drive wheel 12, the second drive wheel 13 and the passageway armrest 1, ensuring the stability of the drive process. It also prevents the first drive wheel 12, the second drive wheel 13 from detaching from the passageway armrest 1. Under the drive of the first motor 9, the first drive wheel 12 and the second drive wheel 13 rotate synchronously, thereby driving the first housing 2, the electric attachment, and the wheelchair to move synchronously along the passageway armrest 1. The first housing 2 contains a battery 11 and a controller. Buttons (up, pause, and down buttons) are installed on the outer wall of the first housing 2 or on the electric attachment. The battery 11 powers the first motor 9. When the electric attachment is connected to the wheelchair armrest, the buttons are manually operated, and the controller controls the start and stop of the first motor 9.
[0024] In addition, the first housing 2 has a built-in BMS (Battery Management System) that detects parameters such as the remaining power, voltage, and discharge current of the battery 11 multiple times per second to accurately calculate the remaining power percentage. When the power is lower than a preset threshold, the BMS sends a "low power signal" to the controller. When idle, it triggers the return and charging program to start, and the controller controls the first motor 9. A charging port is provided at the end of the passage handrail 1, and a plug is installed on the outer wall of the first housing 2. When the battery 11 has insufficient power (below 20% or 10%) or is idle (e.g., not used for more than 10 or 20 minutes), the controller automatically starts the first motor 9, moving the first housing 2 to the end of the passage handrail 1 and automatically connecting the plug to the charging port (the plug and charging port are arranged along the movement trajectory of the first housing 2), automatically charging and returning to the original position. After the plug and charging port are successfully connected, the BMS detects the charging voltage, and the battery 11 begins charging.
[0025] Further optimization scheme, the axial drive unit further comprises a fixed support 16, the fixed support 16 is fixedly connected to the inner side of the first shell 2, the first drive wheel 12 and the second drive wheel 13 are rotatably connected between the fixed support 16 and the inner side wall of the first shell 2 respectively, and the first motor 9 is fixedly connected to the fixed support 16.
[0026] Reference Figure 2 The main function of the fixed support 16 is to provide a mounting position for the first motor 9 and a rotating connection point for the first drive wheel 12 and the second drive wheel 13, which helps the transmission connection between the first motor 9 and the first drive wheel 12 and the second drive wheel 13.
[0027] Further optimization scheme, the axial drive unit further comprises a gear set, the gear set is transmissionally connected between the first motor 9 and the first drive wheel 12 and the second drive wheel 13, and the shafts of the first drive wheel 12 and the second drive wheel 13 are vertically arranged; the transmission set comprises a first gear 8, a second gear 10, a third gear 15 and a fourth gear 19, the first gear 8 is installed on the output shaft of the first motor 9, the second gear 10 and the third gear 15 are coaxially fixedly connected to the shaft of the first drive wheel 12, and the fourth gear 19 is coaxially fixedly connected to the shaft of the second drive wheel 13, the first gear 8 is meshingly arranged with the second gear 10, the third gear 15 and the fourth gear 19, and the third gear 15 and the fourth gear 19 are bevel gears respectively.
[0028] Reference Figures 2-3 When the first motor 9 is started, the power is transmitted to the first drive wheel 12 through the first drive wheel 12 and the second drive wheel 13 in sequence, and the first drive wheel 12 and the second drive wheel 13 rotate synchronously through the bevel gears, so that the first drive wheel 12 and the second drive wheel 13 roll synchronously on the channel handrail 1.
[0029] Further optimization scheme, the electric hanging piece comprises a synchronous rod 4 and an electric hook, the first end of the synchronous rod 4 is rotatably connected to the outer side wall of the first shell 2, the middle end of the synchronous rod 4 is clamped in the clamp 7 on the outer side wall of the first shell 2, and the electric hook is rotatably connected to the second end of the synchronous rod 4 and is detachably connected with the wheelchair handrail.
[0030] Reference Figures 1-2 The plane where the rotating track of the synchronous rod 4 is located is vertically arranged with the shaft of the channel handrail 1, and the electric hook is rotatably arranged at the second end of the synchronous rod 4, which can adapt to the angle of the wheelchair handrail and facilitate the connection of the electric hook. The synchronous rod 4 is an electric push rod, an infrared sensor is installed on the side wall of the first shell 2 close to the wheelchair, which is used to detect the distance between the wheelchair and the first shell 2 and transmit the distance signal to the controller, so as to automatically adjust the extension length of the synchronous rod 4 through the controller, so as to accurately connect the electric hook with the wheelchair handrail.
[0031] Further optimization scheme, the electric hook includes the upper clamp body 17, the lower clamp body 18 and the third motor (not shown in the figure), the upper clamp body 17 is rotatably connected at the second end of the synchronous rod 4, the lower clamp body 18 is rotatably connected at the first end of the upper clamp body 17, the third motor is fixed at the first end of the upper clamp body 17, the lower clamp body 18 is driven by the third motor, the upper clamp body 17 and the lower clamp body 18 are clamped on the wheelchair armrest by the third motor, and the inner side walls of the upper clamp body 17 and the lower clamp body 18 are respectively fixedly connected (bonded or vulcanized) with rubber pads 6.
[0032] Reference Figures 1-2 The upper clamp body 17 and the lower clamp body 18 are in a clamped state, and the cross section forms an annular structure, and the axial length of the upper clamp body 17 and the lower clamp body 18 is less than the length of the wheelchair armrest; in the initial state, the electric hook is clamped in the clasp 7 on the outer side wall of the first shell 2; the third motor is electrically connected with the controller, the electric hook is installed on the wheelchair armrest before, the button is manually operated, the third motor is started through the controller, the lower clamp body 18 is opened, then the synchronous rod 4 is manually turned over, the clasp 7 is separated, the upper clamp body 17 is placed above the wheelchair armrest, then the button is manually operated, the lower clamp body 18 is moved to the lower side of the wheelchair armrest by the third motor, and then the upper clamp body 17 and the lower clamp body 18 are clamped on the wheelchair armrest; wherein the rubber pads 6 make the upper clamp body 17 and the lower clamp body 18 more suitable for the shape of the wheelchair armrest after clamping, so as to ensure stable clamping effect.
[0033] Further optimization scheme, the deviation rectifying unit is suitable for the independent channel armrest 1, the deviation rectifying unit is provided with two groups, which are symmetrically installed on the two sides of the first shell 2, the deviation rectifying unit includes a guide groove 28, a second shell 3 and a guide wheel 24, the guide groove 28 is formed on the top side wall of the channel armrest 1 along the extension direction of the channel armrest 1, the second shell 3 is fixedly connected on the outer side wall of the first shell 2, and the guide wheel 24 is rotatably connected in the second shell 3 and rolls in the guide groove 28. The partition plate 14 is installed between the first shell 2 and the second shell 3, and the deviation rectifying unit and the axial driving unit are separated by the partition plate 14.
[0034] Reference Figures 4-5 , for the independent channel armrest 1, that is, there is no guardrail under the channel armrest 1; in order to ensure the stability of the first shell 2 during movement, the guide groove 28 is arranged on the top of the channel armrest 1, the guide groove 28 is arranged along the axis of the channel armrest 1, and the guide wheel 24 rolls in the guide groove 28; during the movement of the first shell 2 along the channel armrest 1, the guide wheel 24 is limited in the guide groove 28, and the first shell 2 moves along the guide groove 2; through the guide wheels 24 on the two sides of the first shell 2, the first shell 2 can be prevented from rotating relative to the channel armrest 1, and stably moving on the channel armrest 1.
[0035] Embodiment 2 Reference Figures 6-7The difference between the embodiment and the embodiment 1 is that the deviation rectifying unit is suitable for the independent channel handrail 1, the surface of the channel handrail 1 is a smooth cylindrical surface, the deviation rectifying unit is provided with two groups and is symmetrically installed on the two sides of the second shell 3, the deviation rectifying unit comprises the second shell 3 and the guide bracket 20, the second shell 3 is fixedly connected to the outer side wall of the first shell 2, the middle end of the guide bracket 20 is rotatably connected to the top inner side wall of the second shell 3; The elastic telescopic rod 23 is hinged between the first end of the guide bracket 20 and the top inner side wall of the second shell 3, the first end of the guide bracket 20 abuts on the channel handrail 1 through the elastic telescopic rod 23 and slides on the top wall of the channel handrail 1, and the circumferential driving part is installed at the second end of the guide bracket 20, so that the second shell 3, the first shell 2 and the axial driving unit are relatively circumferentially deflected relative to the channel handrail 1 through the circumferential driving part; The deviation rectifying unit further comprises a horizontal detection sensor, such as an inclination sensor, which is installed in the second shell 3 and is used for detecting the deflection angle of the second shell 3 and the first shell 2 relative to the channel handrail 1; when the second shell 3 and the first shell 2 are inclined and deviated to one side of the channel handrail 1, the inclination sensor transmits an angle deflection signal to the controller, and the controller automatically controls and starts the circumferential driving part to correct the angle.
[0036] For the channel handrail 1 with the guide groove 28, the guide wheel 24 is abutted in the guide groove 28 under the elastic force of the elastic telescopic rod 23, the second end of the guide bracket 20 is raised, and the circumferential driving part is separated from the surface of the channel handrail 1 at this time; Figure 6 For the smooth surface of the channel handrail 1, the first end of the guide bracket 20 is abutted on the top wall of the channel handrail 1 through the elastic telescopic rod 23, the guide wheel 24 is installed at the first end of the guide bracket 20, and the circumferential driving part is in contact with the surface of the channel handrail 1 at the same time; the deviation rectifying unit of the embodiment is suitable for the smooth surface of the channel handrail 1 and also suitable for the channel handrail 1 with the guide groove 28.
[0037] Reference Figure 6 In the embodiment, the main function of the circumferential driving part is to drive the second shell 3, the first shell 2 and the axial driving unit to be circumferentially deflected relative to the channel handrail 1, so that the second shell 3 and the first shell 2 are always located directly above the channel handrail 1, thereby ensuring the stability of the overall structure during movement.
[0038] Further optimization scheme, the circumferential driving part includes the second motor 21, the driving wheel group 22 and the rotating shaft 25, the second motor 21 is fixedly connected on the second end of the guide bracket 20;Two groups of driving wheel groups 22 are rotatably connected on the second end of the guide bracket 20, and are symmetrically located on the two sides of the channel handrail 1, the driving wheel group 22 is rollingly fitted on the channel handrail 1 along the axial direction of the channel handrail 1, and the second motor 21 drives the two groups of driving wheel groups 22 to rotate in the same direction, so that the second shell 3, the first shell 2 and the axial driving unit are circumferentially deflected relative to the channel handrail 1;Two groups of rotating shafts 25 pass through the second end of the guide bracket 20, and are respectively in transmission connection with the second motor 21, and the two groups of rotating shafts 25 are symmetrically arranged on the two sides of the channel handrail 1, and the driving wheel group 22 is coaxially fixedly connected on the rotating shaft 25.
[0039] Reference Figures 6-7 The second motor 21 is started, and drives the two groups of driving wheel groups 22 to rotate synchronously and in the same direction;The driving wheel group 22 includes the frame 26 and the wheel 27, the frame 26 is fixedly sleeved on the rotating shaft 25, all the wheels 27 on the frame 26 are arranged in several layers along the axial direction, and each layer of several groups of wheels 27 are circumferentially arranged, the wheel 27 is rollingly fitted on the channel handrail 1 along the axial direction of the channel handrail 1, and the second motor 21 drives the two groups of driving wheel groups 22 to rotate in the same direction, so that the second shell 3, the first shell 2 and the axial driving unit are circumferentially deflected relative to the channel handrail 1.
[0040] Wherein, the axial center of all the wheels 27 is vertically arranged with the axial center of the channel handrail 1, the surface of the wheel 27 is wrapped with a rubber layer, and the middle end diameter of the wheel 27 is greater than the diameter of the two ends;During the movement of the second shell 3 and the first shell 2 along the channel handrail 1, the end of the wheel 27 is in contact with the surface of the channel handrail 1, the wheel 27 starts to rotate with the movement of the second shell 3 and the first shell 2 along the channel handrail 1, when the inclination sensor detects that the second shell 3 and the first shell 2 are deflected by a certain angle relative to the channel handrail 1, i.e. the first driving wheel 12 and the second driving wheel 13 rotate by a certain angle around the channel handrail 1, the second motor 21 is automatically started through the controller, the wheel 27 in contact with the channel handrail 1 rotates at the same time, and the wheel 27 also moves along the tangent direction of the channel handrail 1, the middle end of the wheel 27 is extruded with the channel handrail 1, the middle end of the wheel 27 is in surface contact with the channel handrail 1, and the second shell 3, the first shell 2 and the axial driving unit are rotated in the opposite direction of the deflection relative to the channel handrail 1 through the friction force, so as to correct the angle of the second shell 3, the first shell 2 and the axial driving unit relative to the channel handrail 1. The axial center of all the wheels 27 is vertically arranged with the axial center of the channel handrail 1, which is arranged, and does not affect the movement of the second shell 3, the first shell 2 and the axial driving unit along the channel handrail 1 when correcting the deflection angle of the second shell 3, the first shell 2 and the axial driving unit relative to the channel handrail 1.
[0041] Embodiment 3 Reference Figures 8-10 The difference between the embodiment and embodiment 1 is only that the deviation rectifying unit is suitable for the passage handrail 1 provided with the rail 30, and the deviation rectifying unit comprises the limiting plate 29 and the avoiding passage 31. The two groups of limiting plates 29 are symmetrically arranged at the bottom of the first shell 2 and are slidingly connected to the two sides of the rail 30 below the passage handrail 1. The length of the limiting plate 29 is not less than the distance between the adjacent rails 30. The avoiding passage 31 is arranged at the bottom of the first shell 2 and is used for avoiding the rail 30.
[0042] The two groups of limiting plates 29 are attached to the two sides of the rail 30 and are slidingly matched with the rail 30. The length of the limiting plate 29 is not less than the distance between the adjacent rails 30. In this way, when the second shell 3, the first shell 2 and the axial driving unit have a deflection tendency relative to the passage handrail 1, the limiting plate 29 can be prevented from entering between the adjacent rails 30.
[0043] In a further optimization scheme, the deviation rectifying unit further comprises the roller 32. The opposite surfaces of the two groups of limiting plates 29 are respectively rotatably connected with a plurality of rollers 32. The rollers 32 are rollingly matched with the rail 30.
[0044] Reference Figures 9-10 The rollers 32 are rollingly matched with the rail 30, so that the sliding of the limiting plate 29 and the rail 30 is more smooth.
[0045] In a further optimization scheme, the electric hook comprises the upper clamping body 17 and the lower clamping body 18. The upper clamping body 17 is rotatably connected to the second end of the synchronous rod 4. The lower clamping body 18 is rotatably connected to the first end of the upper clamping body 17. The upper clamping body 17 and the lower clamping body 18 are clamped on the wheelchair handrail through electromagnetic force.
[0046] The electromagnet is embedded on the clamping surface of the upper clamping body 17 and the lower clamping body 18. The battery 11 supplies power to the electromagnet. The manual operation button is magnetically attracted after being powered on, so as to achieve the purpose that the upper clamping body 17 and the lower clamping body 18 are clamped on the wheelchair handrail through electromagnetic force.
[0047] Embodiment 4 The difference between the embodiment and embodiment 1 is only that the wheelchair charging port is arranged at the end of the passage handrail 1. When the electric wheelchair is insufficient in power, the charging plug of the electric wheelchair can be inserted into the wheelchair charging port, so as to temporarily charge the electric wheelchair and improve the endurance capability.
[0048] It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like expressed in this paper indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0049] In the description herein, it should also be noted that unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0050] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A barrier-free passage wheelchair assisted up and down slope device, which is installed on a passage handrail (1), characterized in that, Comprise: First shell (2) and electric pendant, the first shell (2) is set on the channel handrail (1), the first end of the electric pendant is rotatably connected on the outer side wall of the first shell (2), the wheelchair handrail is detachably connected with the second end of the electric pendant; Axial drive unit, the axial drive unit is installed in the first shell (2), the first shell (2) is moved on and along the channel handrail (1) through the axial drive unit; The correction unit is installed between the first shell (2) and the channel handrail (1), and the first shell (2) is located in the vertical plane of the channel handrail (1) axis through the correction unit.
2. The ramp-assisting wheelchair device according to claim 1, wherein, The axial drive unit comprises: First drive wheel (12) and second drive wheel (13), the first drive wheel (12) and the second drive wheel (13) are rotatably connected in the first shell (2) respectively, and are symmetrically covered on both sides of the channel handrail (1), the first drive wheel (12) and the second drive wheel (13) are rolled on the channel handrail (1) along the axial direction; First motor (9), the first motor (9) is fixedly connected in the first shell (2), and is rotatably connected with the first drive wheel (12), second drive wheel (13).
3. The ramp-assisting wheelchair device according to claim 1, wherein, The electric pendant comprises: Synchronous rod (4), the first end of the synchronous rod (4) is rotatably connected on the outer side wall of the first shell (2), and the middle end of the synchronous rod (4) is clamped on the outer side wall of the first shell (2); Electric hook, the electric hook is rotatably connected on the second end of the synchronous rod (4), and is detachably connected with the wheelchair handrail.
4. The ramp-assisting wheelchair device according to claim 3, wherein, The electric hook comprises: Upper clamp body (17) and lower clamp body (18), the upper clamp body (17) is rotatably connected on the second end of the synchronous rod (4), and the lower clamp body (18) is rotatably connected on the first end of the upper clamp body (17); Third motor, the third motor is fixed on the first end of the upper clamp body (17), the lower clamp body (18) is driven by the third motor, and the upper clamp body (17) and the lower clamp body (18) are clamped on the wheelchair handrail by the third motor.
5. The ramp-assisting wheelchair device according to claim 1, wherein, The correction unit is suitable for the channel handrail (1) independently, and the correction unit comprises: Guide groove (28), the guide groove (28) is opened on the top side wall of the channel handrail (1) along the extension direction of the channel handrail (1); Second shell (3) and guide wheel (24), the second shell (3) is fixedly connected on the outer side wall of the first shell (2), and the guide wheel (24) is rotatably connected in the second shell (3) and is rolled in the guide groove (28).
6. The ramp-assisting wheelchair device of claim 1, wherein, The correction unit is suitable for the channel handrail (1) independently, and the correction unit comprises: Second shell (3) and guide bracket (20), the second shell (3) is fixedly connected on the outer side wall of the first shell (2), and the middle end of the guide bracket (20) is rotatably connected on the top inner side wall of the second shell (3); An elastic telescopic rod (23) is hinged between the first end of the guide bracket (20) and the inner top wall of the second shell (3), the first end of the guide bracket (20) is abutted on the channel handrail (1) through the elastic telescopic rod (23) and slides on the top wall of the channel handrail (1), and the circumferential driving part is installed on the second end of the guide bracket (20), so that the second shell (3), the first shell (2) and the axial driving unit are circumferentially deflected relative to the channel handrail (1) through the circumferential driving part.
7. The ramp-assisting wheelchair transfer device of claim 6, wherein, The circumferential driving part comprises: A second motor (21) is fixedly connected to the second end of the guide bracket (20); A driving wheel set (22) is rotatably connected to the second end of the guide bracket (20) and symmetrically located on both sides of the channel handrail (1), the driving wheel set (22) is rollingly fitted on the channel handrail (1) along the axial direction, and the two driving wheel sets (22) are driven to rotate in the same direction by the second motor (21), so that the second shell (3), the first shell (2) and the axial driving unit are circumferentially deflected relative to the channel handrail (1).
8. The ramp-assisting wheelchair device of claim 1, wherein, The deviation rectifying unit is suitable for the channel handrail (1) provided with a railing (30), and comprises: A limiting plate (29) is symmetrically installed on both sides of the bottom of the first shell (2) and is slidably connected to both sides of the railing (30) below the channel handrail (1), and the length of the limiting plate (29) is not less than the distance between adjacent railings (30); An avoiding channel (31) is formed in the bottom of the first shell (2) and is used for avoiding the railing (30).
9. The ramp-assisting wheelchair transfer device of claim 8, wherein, The deviation rectifying unit further comprises: A plurality of rollers (32) are rotatably connected to the opposite surfaces of the two limiting plates (29), and the rollers (32) are rollingly fitted on the railing (30).
10. The ramp-assisting wheelchair device of claim 3, wherein, The electric hook comprises: An upper clamping body (17) and a lower clamping body (18), the upper clamping body (17) is rotatably connected to the second end of the synchronization rod (4), the lower clamping body (18) is rotatably connected to the first end of the upper clamping body (17), and the upper clamping body (17) and the lower clamping body (18) are clamped on the wheelchair handrail by electromagnetic force.