Handler moving device of motorized wheelchair for disabled
By designing a hand movement device for disabled motorized wheelchair vehicles, the connecting rod, coat wheel, rotating shaft and other components can drive the wheel hub to rotate and pry the stuck rear wheel, the problem of the disabled motorized wheelchair vehicles being unable to move on obstacles or potholes is achieved, and short-distance escape and travel convenience is achieved.
Patent Information
- Application Number
- CN202421633348.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-11
AI Technical Summary
When a disabled motorized wheelchair car encounters obstacles or potholes, the rear wheels may be stuck, resulting in the driving wheels being suspended or insufficient power and being unable to pass through the obstacles. It requires relying on auxiliary personnel to perform manual movement, affecting traffic and increasing the difficulty of travel.
A hand moving device is designed. Through the combination of connecting rod, jacket wheel, rotating shaft, hub grab disk and clamping column, the combination of pawls and inner ratchets is used to drive the wheel hub grab disk to rotate, and pry the unmovable rear wheel of the wheelchair to achieve short-distance escape.
The device can escape from difficulties at a short distance without relying on auxiliary personnel, improve the travel convenience of mobile wheelchairs for disabled people, and reduce traffic impacts and social conflicts.
Smart Images
Figure CN222841173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motorized wheelchairs, in particular to a moving device for motorized wheelchair drivers with disabilities. Background Art
[0002] Electric wheelchairs are wheelchairs with driving kinetic energy, which effectively improve the convenience of travel for people with lower limb disabilities. The purpose of designing motorized wheelchairs for the disabled is to solve the travel problems of people with lower limb disabilities. The standard requires that motorized wheelchairs be equipped with hand-moving devices so that the vehicle can achieve short-distance evasive movement. The purpose is that if the motorized wheelchair driven by the disabled person breaks down during travel, the hand-moving device can be used to park the broken vehicle by the side of the road in a short distance, so that the motorized wheelchair for the disabled will not occupy the road and affect the smooth flow of traffic. It is also a necessary measure to ensure the personal safety of the disabled.
[0003] For a long time, there has been no good design solution for the hand-moving device in the production of motorized wheelchairs for the disabled because the standard only has requirements for the hand-moving device but no specific drawings or data. And the disabled, especially those with severe lower limb disabilities, cannot get off the vehicle to avoid the vehicle when the vehicle breaks down.
[0004] For example, when a disabled person travels by riding a motorized wheelchair, if the rear wheel of the motorized wheelchair gets stuck, such as when there is an obstacle or a bumpy road, the driving wheel of the motorized wheelchair is suspended in the air and cannot bear force, or the motorized wheelchair is underpowered and cannot pass through the obstacle, the person can only rely on assistants to solve the fault and manually move the wheelchair a short distance to avoid it. This will inevitably affect traffic and increase the difficulty of travel for the disabled. Utility Model Content
[0005] The purpose of the utility model is to provide a mobile device for disabled motorized wheelchair riders, which cooperates with the handle, the outer wheel and the rotating shaft through the rotation of the connecting rod, so that the pawl and the inner ratchet inside the rotating shaft are used in cooperation to drive the wheel hub grab plate to rotate, so that the immobile rear wheel of the wheelchair is pried by two clamping columns to achieve a short-distance escape, so as to solve the problem raised in the above-mentioned background technology that when the disabled person rides a motorized wheelchair to travel, if the rear wheel of the motorized wheelchair is stuck, such as in an obstacle, a bumpy road, etc., at this time, the driving wheel of the motorized wheelchair is suspended and cannot be subjected to force, or the motorized wheelchair is insufficiently powered and cannot pass through the obstacle, the driver can only rely on assistants to solve the fault and avoid the obstacle by manual movement for a short distance, which is bound to affect traffic and increase the difficulty of travel for the disabled.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mobile device for disabled motorized wheelchair riders, comprising a connecting rod, one end of the connecting rod is welded with an outer sleeve wheel, a rotating shaft is fixed through the middle position of the outer sleeve wheel, a wheel hub grab plate is provided at the end of the outer sleeve wheel away from the connecting rod, the rotating shaft passes through the end of the outer sleeve wheel and is arranged on the inner wall of the wheel hub grab plate, the top and bottom of the end of the wheel hub grab plate away from the outer sleeve wheel are fixedly connected with clamping columns, an inner wall of the wheel hub grab plate is provided with an inner cavity, an inner wall of the inner cavity is provided with an inner ratchet, a reset connecting column is fixedly connected to the side wall of the rotating shaft located on the inner wall of the inner cavity, and a ratchet is fixedly connected to the outer wall of the reset connecting column.
[0007] As a further solution of the utility model: the pawl can be meshed and connected with the inner ratchet.
[0008] As a further solution of the utility model: the outer wall of the rotating shaft located at one end of the inner cavity is fixedly connected with an inner bearing, and the rotating shaft is rotatably connected to the inner wall of the hub grab plate through the inner bearing.
[0009] As a further solution of the utility model: a handle is fixedly connected to one end of the connecting rod away from the outer sleeve wheel.
[0010] As a further solution of the utility model: a weight-reducing cavity is provided on the outer wall of the outer sheave away from the wheel hub grab plate at one end.
[0011] As a further solution of the utility model: one end of the rotating shaft close to the outer sleeve wheel is fixedly connected to the side wall of the connecting rod.
[0012] Compared with the prior art, the beneficial effect of the utility model is as follows: in the utility model, the connecting rod cooperates with the handle, the outer wheel and the rotating shaft to rotate, so that the pawl and the inner ratchet inside the rotating shaft cooperate to drive the hub grab plate to rotate, so that the rear wheel of the wheelchair that cannot be moved is pried through two clamping columns, and a short-distance escape is achieved, thereby improving the travel convenience of disabled people riding motorized wheelchairs.
[0013] This patent successfully solves the manufacturing problem of this device with a simpler design, and solves the embarrassing situation that the standard has not been implemented for a long time. It also solves the short-distance avoidance problem of disabled people's broken-down vehicles, which not only solves traffic jams but also reduces social conflicts. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the main structure of the utility model of the mobile device for disabled motorized wheelchair riders;
[0015] Figure 2 It is a side view structural schematic diagram of the utility model of the mobile device for disabled motorized wheelchair riders;
[0016] Figure 3 It is an enlarged schematic cross-sectional view of the wheel hub gripping plate in the utility model of the motorized wheelchair for disabled riders;
[0017] Figure 4 This is a schematic diagram of an improved structural direction of the utility model;
[0018] Figure 5 This is a schematic diagram of the structure of another improved direction of the utility model.
[0019] In the figure: 1, connecting rod; 11, extension rod; 12, locking bolt; 2, handle; 3, outer wheel; 4, rotating shaft; 41, inner bearing; 42, reset connecting column; 43, pawl; 5, wheel hub grab plate; 51, clamping column; 52, inner cavity; 53, inner ratchet. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.
[0022] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] See also Figures 1 to 3 In the embodiment of the utility model, the mobile device for disabled motorized wheelchair riders includes a connecting rod 1, one end of the connecting rod 1 is welded with an outer sleeve wheel 3, the middle position of the outer sleeve wheel 3 is penetrated and fixed with a rotating shaft 4, the end of the outer sleeve wheel 3 away from the connecting rod 1 is provided with a hub grab plate 5, the end of the rotating shaft 4 that passes through the outer sleeve wheel 3 is arranged on the inner wall of the hub grab plate 5, the top and bottom of the end of the hub grab plate 5 away from the outer sleeve wheel 3 are fixedly connected with a clamping column 51, the inner wall of the hub grab plate 5 is provided with an inner cavity 52, the inner wall of the inner cavity 52 is provided with an inner ratchet 53, the side wall of the rotating shaft 4 located on the inner wall of the inner cavity 52 is fixedly connected with a reset connecting column 42, and the outer wall of the reset connecting column 42 is fixedly connected with a ratchet 43.
[0025] Preferably, in this embodiment, the installation size of the clamping column 51 is welded according to the size of the rear wheel hub of the motorized wheelchair. When in use, the clamping column 51 can be directly clamped in the gap of the rear wheel hub of the motorized wheelchair, or it can be set according to the position of the connecting bolts of the rear wheel hub of the motorized wheelchair. At this time, the end of the clamping column 51 needs to be set to be hollow. When in use, the clamping column 51 is directly inserted and connected with the rear wheel bolts of the motorized wheelchair, and it can be used normally.
[0026] The reset connecting column 42 is a common connecting piece of the ratchet pawl, and can be used in conjunction with a reset torsion spring through a reset mechanism, which is well known to those skilled in the art.
[0027] The pawl 43 is meshingly connected with the inner ratchet 53 .
[0028] Preferably, in this embodiment, when the rotating shaft 4 is driven to rotate by the connecting rod 1, the pawl 43 cooperates with the inner ratchet 53 to drive the hub grab plate 5 to rotate, thereby driving the rear wheel of the motorized wheelchair to run short distances through the clamping column 51, thereby improving the travel convenience of the motorized wheelchair.
[0029] An inner bearing 41 is fixedly connected to the outer wall of the rotating shaft 4 at one end of the inner cavity 52 , and the rotating shaft 4 is rotatably connected to the inner wall of the wheel hub grab plate 5 via the inner bearing 41 .
[0030] One end of the connecting rod 1 away from the outer sleeve wheel 3 is fixedly connected with a handle 2 .
[0031] A weight-reducing cavity is formed on the outer wall of the outer sheave 3 at one end away from the hub grab plate 5 .
[0032] Preferably, in this embodiment, by providing a weight-reducing cavity, the weight of the entire device can be reduced, thereby facilitating the use convenience of the motorized wheelchair rider.
[0033] One end of the rotating shaft 4 close to the outer sleeve wheel 3 is fixedly connected to the side wall of the connecting rod 1 .
[0034] Improvement plan 1:
[0035] See also Figure 4 As an improvement direction in this field, according to the wheel hub size of the motorized wheelchair, the clamping column 51 can be directly welded to the top and bottom outer walls of the wheel hub grab plate 5. At this time, the size of the outer sleeve wheel 3 and the wheel hub grab plate 5 can be correspondingly reduced, thereby further reducing the weight of the device and improving the convenience of use.
[0036] Improvement plan 2:
[0037] See also Figure 5 As another improvement direction in this field, in order to improve the convenience of using and carrying the device, the interior of the connecting rod 1 can be set to be hollow, and a through opening is opened at the end away from the outer sleeve wheel 3, and the extension rod 11 is sleeved inside it, and the extension rod 11 is locked and limited by the locking bolt 12. When carrying, the locking bolt 12 can be loosened and the extension rod 11 can be directly retracted into the interior of the connecting rod 1. When in use, the extension rod 11 is pulled out and the locking bolt 12 is tightened to lock the extension rod 11, so that it can be used normally, thereby improving the convenience of carrying.
[0038] In the second improvement, the handle 2 can be installed on the end of the extension rod 11 for easy use.
[0039] The working principle of the utility model is as follows: when using the device, it is only necessary to take out the device, and plug the clamping column 51 into the gap between the rear wheel hub of the motorized wheelchair or the connecting bolt, and then press the connecting rod 1 downward through the handle 2. At this time, the pawl 43 cooperates with the inner teeth of the inner ratchet 52, and drives the rear wheel of the motorized wheelchair to move forward through the wheel hub grab plate 5, passing over obstacles or potholes, achieving short-distance obstacle passing, and improving the travel convenience of the motorized wheelchair.
[0040] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.
[0041] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.
Claims
1. A device for moving a motorized wheelchair rider for a disabled person, comprising a connecting rod (1), characterized in that: An outer sleeve wheel (3) is welded to one end of the connecting rod (1), a rotating shaft (4) is fixedly passed through the middle position of the outer sleeve wheel (3), a wheel hub grab plate (5) is arranged at the end of the outer sleeve wheel (3) away from the connecting rod (1), the rotating shaft (4) passes through the end of the outer sleeve wheel (3) and is arranged on the inner wall of the wheel hub grab plate (5), the top and bottom of the end of the wheel hub grab plate (5) away from the outer sleeve wheel (3) are fixedly connected with clamping columns (51), an inner cavity (52) is formed on the inner wall of the wheel hub grab plate (5), an inner ratchet (53) is arranged on the inner wall of the inner cavity (52), a reset connecting column (42) is fixedly connected to the side wall of the rotating shaft (4) located on the inner wall of the inner cavity (52), and a ratchet (43) is fixedly connected to the outer wall of the reset connecting column (42).
2. The device for moving motorized wheelchair riders for the disabled according to claim 1, characterized in that: The pawl (43) is meshingly connected with the inner ratchet (53).
3. The device for moving motorized wheelchair riders for the disabled according to claim 1, characterized in that: An inner bearing (41) is fixedly connected to the outer wall of the rotating shaft (4) at one end of the inner cavity (52), and the rotating shaft (4) is rotatably connected to the inner wall of the wheel hub grab plate (5) via the inner bearing (41).
4. The device for moving motorized wheelchair riders for the disabled according to claim 1, characterized in that: One end of the connecting rod (1) away from the outer sleeve wheel (3) is fixedly connected to a handle (2).
5. The device for moving motorized wheelchair riders for the disabled according to claim 1, characterized in that: A weight-reducing cavity is provided on the outer wall of the outer sheave (3) at one end away from the hub grab plate (5).
6. The device for moving motorized wheelchair riders for the disabled according to claim 1, characterized in that: One end of the rotating shaft (4) close to the outer sleeve wheel (3) is fixedly connected to the side wall of the connecting rod (1).