Walking aid

Abstract

The application discloses an auxiliary walking device, which comprises a chassis, a first supporting member, a second supporting member, a sliding member, a seat, a handrail and wheels; the wheels are arranged on the chassis; the lower end of the first supporting member is arranged on the chassis; the lower end of the second supporting member is pivotally connected to the first supporting member or the chassis, and the upper end of the second supporting member is pivotally connected to one end of the seat; the seat is pivotally connected to the sliding member; the handrail is arranged on the sliding member; and the sliding member is arranged on the first supporting member and can slide along the central axis direction of the first supporting member, so as to drive the seat to unfold or fold relative to the first supporting member. The auxiliary walking device can assist a user to stand and walk or can be used for the user to ride, and is various in functions and convenient to use.

Description

Technical Field

[0001] This invention relates to an assistive walking device, and more particularly to an assistive walking device that can assist a user in standing and walking or allow the user to sit. Background Technology

[0002] Currently, there are many devices on the market that can assist with mobility, such as wheelchairs, electric four-wheelers, and foldable cane chairs. These devices provide some convenience for the elderly and people with mobility impairments. However, these devices have limited functions. For example, wheelchairs can only be used for seating and cannot be driven automatically, making them tiring to use. While electric four-wheelers can be driven automatically, getting on and off is inconvenient, and users face significant difficulties transitioning between sitting and standing positions. Moreover, electric four-wheelers cannot assist with walking. Foldable cane chairs, although they assist with walking and function as seats for rest, cannot be driven. Therefore, existing mobility aids are quite limited in function, inconvenient to use, and fail to meet the diverse needs of users. Summary of the Invention

[0003] The purpose of this invention is to provide a multifunctional and easy-to-use walking aid that can assist users in standing or walking or allow users to sit.

[0004] To achieve the above objectives, the auxiliary walking device provided by the present invention includes a base frame, a first support member, a second support member, a sliding member, a seat, armrests, and wheels; the wheels are disposed on the base frame; the lower end of the first support member is disposed on the base frame; the lower end of the second support member is pivotally connected to the first support member or the base frame, and the upper end of the second support member is pivotally connected to one end of the seat; the seat is pivotally connected to the sliding member; the armrests are disposed on the sliding member; the sliding member is disposed on the first support member and can slide along the central axis of the first support member to drive the seat to unfold or fold relative to the first support member.

[0005] Compared with the prior art, this invention, by setting a first support member, a second support member, and a sliding member, pivotally connects the upper end of the second support member to the seat, and the seat to the sliding member, with the sliding member slidably mounted on the first support member. Therefore, the sliding of the sliding member can drive the seat to swing, achieving the purpose of unfolding or folding the seat. When the seat is unfolded, it can be used by the user; when the seat is folded, the user can hold the armrests mounted on the sliding member to stand and walk, achieving the purpose of assisting walking. Therefore, this invention can both assist the user to stand and walk and be used by the user to sit, realizing the functions of an electric wheelchair, a four-wheeled vehicle, or a cane. It has multiple functions, and different usage states can be adjusted simply by adjusting the position of the sliding member on the first support member, making it very simple and convenient to use.

[0006] Preferably, the auxiliary walking device further includes a first drive mechanism, which can drive the slider to slide. By providing the first drive mechanism, the position of the slider relative to the first support member can be easily adjusted, thereby enabling different usage states. The adjustment is simple and effectively improves the convenience of use.

[0007] Preferably, the lower end of the first support member is pivotally connected to the base frame, and the lower end of the first support member is provided with a connector, one end of the connector being fixed to the lower end of the first support member, and the lower end of the second support member being pivotally connected to the connector.

[0008] Preferably, the walking assistance device further includes a foot pedal, which is mounted on the base frame. By including the foot pedal, the user's feet can be positioned more comfortably while driving or riding.

[0009] Specifically, the foot pedal is foldable. By making the foot pedal foldable, when the foot pedal is open, the user can place both feet on it and open the seat, thus enabling use as a wheelchair or four-wheel drive vehicle; when the foot pedal is folded, it provides space for the user to walk on the ground, and the user can hold onto the armrests with both hands, thus enabling standing and walking, achieving the function of assisting walking, which is very convenient to use.

[0010] Preferably, the seat includes a base, a seat, and a second drive mechanism. One end of the seat is pivotally connected to the base, and the second drive mechanism is disposed between the seat and the base to drive the other end of the seat towards or away from the base. By providing the second drive mechanism between the base and the seat, the seat can be adjusted relative to the base, thereby enabling the entire auxiliary walking device to have more usage states, making it more versatile and improving its convenience and applicability.

[0011] Preferably, the auxiliary walking device further includes a linkage mechanism, with the armrest pivotally connected to the sliding member. The linkage mechanism is disposed between the seat and the armrest to drive the armrest to swing. By providing the linkage mechanism, the armrest can be folded or unfolded along with the seat, improving ease of use.

[0012] Specifically, the linkage mechanism includes a linkage component, one end of which is pivotally connected to the other end of the seat, and the other end of which is pivotally connected to the armrest.

[0013] Specifically, the handrail extends into a connecting portion, which is located on the lower side of the handrail and pivotally connected to the linkage. By providing this connecting portion, the linkage can easily drive the handrail to swing, and the structure becomes more compact and rational.

[0014] Preferably, the handrail includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a handrail bar, and a handrail driving mechanism. Adjacent pairs of the first, second, third, and fourth connecting rods are pivotally connected to form a quadrilateral. The handrail bar is fixed between any one of the connecting rods, and the handrail driving mechanism is disposed between any two of them. This allows the handrail to extend and retract, enabling convenient adjustment to accommodate different usage states of the entire auxiliary walking device, thus improving ease of use and comfort.

[0015] Preferably, the auxiliary walking device further includes a backrest, which is disposed on the sliding member.

[0016] Preferably, the middle of the base frame forms a walking area for the user to walk on the ground.

[0017] Preferably, the auxiliary walking device further includes a third support member, one end of which is pivotally connected to the base frame and the other end to the sliding member, and the lower end of the first support member is pivotally connected to the base frame. By pivoting the first support member to the base frame and providing the third support member, a deformable triangle is formed between the first support member, the sliding member, the third support member, and the base frame. This allows the first support member to synchronously adjust the position of each component while the sliding member slides, resulting in a more reasonable posture for the entire auxiliary walking device under different usage conditions. Attached Figure Description

[0018] Figure 1 This is a perspective view of the assistive walking device of Embodiment 1 of the present invention in a low-position sitting posture.

[0019] Figure 2 This is another perspective view of the auxiliary walking device of Embodiment 1 of the present invention in a low-position sitting posture.

[0020] Figure 3 This is a side view of the assistive walking device of Embodiment 1 of the present invention in a low-position sitting posture.

[0021] Figure 4 This is a cross-sectional view of the auxiliary walking device according to Embodiment 1 of the present invention.

[0022] Figure 5 This is an exploded view of the auxiliary walking device according to Embodiment 1 of the present invention.

[0023] Figure 6 This is a perspective view of the walking assistance device of Embodiment 1 of the present invention in the walking assistance state.

[0024] Figure 7 This is a side view of the walking assistance device of Embodiment 1 of the present invention in the walking assistance state.

[0025] Figure 8 This is a perspective view of the auxiliary walking device of Embodiment 1 of the present invention in a standing driving state.

[0026] Figure 9 This is a side view of the auxiliary walking device of Embodiment 1 of the present invention in a standing driving state.

[0027] Figure 10 This is a perspective view of the auxiliary walking device of Embodiment 1 of the present invention in a high-position sitting posture.

[0028] Figure 11 This is a side view of the auxiliary walking device of Embodiment 1 of the present invention in a high-position sitting posture.

[0029] Figure 12 This is a perspective view of the auxiliary walking device according to Embodiment 2 of the present invention.

[0030] Figure 13 This is a side view of the auxiliary walking device according to Embodiment 2 of the present invention.

[0031] Figure 14 This is a structural diagram of the handrail of the auxiliary walking device according to Embodiment 2 of the present invention. Detailed Implementation

[0032] To illustrate the technical content, structural features, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0033] like Figures 1 to 11 As shown in the figure, the structure of the auxiliary walking device 100 according to Embodiment 1 of the present invention is illustrated.

[0034] like Figures 1 to 5As shown, the auxiliary walking device 100 of this embodiment includes a base frame 1, a first support member 2, a second support member 3, a sliding member 4, a seat 5, an armrest 6, wheels 7, and a backrest 8. The base frame 1 has a U-shaped structure, and the first support member 2, the second support member 3, the sliding member 4, the armrest 6, and the wheels 7 are symmetrically arranged on both sides of the base frame 1. There are four wheels 7, which are respectively arranged at the front end and the rear end of the base frame 1, and the wheels 7 are automatically driven by a drive motor. The lower end of the first support member 2 is arranged on the base frame 1; the lower end of the second support member 3 is arranged on the base frame 1; in this embodiment, the lower end of the first support member 2 is pivotally connected to the base frame 1, and the pivot point is A; the upper end of the second support member 3 is pivotally connected to the front end of the seat 5, and the pivot point is B; the rear end of the seat 5 is pivotally connected to a pivot seat in the middle of the sliding member 4, and the pivot point is C. The armrest 6 is arranged on the sliding member 4 and extends forward of the auxiliary walking device 100. The backrest 8 is disposed between the two sliding members 4. The sliding member 4 is sleeved onto the first support member 2 and can slide along the central axis of the first support member 2 to drive the seat 5 to unfold or fold relative to the first support member 2. Specifically, as follows:

[0035] Please refer to the following: Figure 4 and Figure 5The lower end of the first support member 2 is pivotally connected to the base frame 1. A connector 9 is provided at the lower end of the first support member 2. The auxiliary walking device 100 also includes a third support member 10. One end of the connector 9 is fixed to the lower end of the first support member 2, and the lower end of the second support member 3 is pivotally connected to the other end of the connector 9 at point D. A connecting portion 11 extends upwards from the front end of the base frame 1. One end of the third support member 10 is pivotally connected to the front end of the base frame 1 at point E, and the other end is pivotally connected to another pivot seat at the lower end of the sliding member 4 at point F. By pivoting the first support member 2 to the base frame 1, the second support member 3 to the connecting member 9, and the connecting member 9 fixed to the first support member 2, and by providing the third support member 10, a deformable triangle is formed between the first support member 2, the sliding member 4, the third support member 10, and the base frame 1. This allows the first support member 2 to synchronously adjust the position of each component while the sliding member 4 slides, resulting in a more reasonable posture for the entire auxiliary walking device 100 under different usage conditions. Specifically, since the auxiliary walking device 100 of this invention needs to switch between sitting and standing postures, the sitting backrest needs a certain backward tilt angle to meet comfort requirements, while the standing posture must remain upright to meet the needs of upright walking and safety, the third support member 10 is provided. When the sliding member 4 extends or retracts, the third support member 10 can simultaneously adjust the angle of the first support member 2 relative to the base frame 1 when switching between sitting and standing postures, thus meeting the needs of different postures. Its structure is simple, its operation is convenient, and it greatly improves the convenience and comfort of use.

[0036] Alternatively, the lower end of the first support member 2 can be fixedly disposed on the base frame 1, and the lower end of the second support member 3 can be pivotally disposed on the base frame 1. This does not affect the folding or unfolding of the seat 5, and can also achieve the effect of the first embodiment.

[0037] Please see Figure 2 and Figure 4The auxiliary walking device 100 further includes a first drive mechanism 110, which is disposed between the second support member 3 and the sliding member 4 to drive the sliding member 4 to slide along the first support member 2. Specifically, in this embodiment, the first drive mechanism 110 is an electric push rod. A first crossbar 3a is fixedly connected between the two second support members 3, and a second crossbar 4a is fixedly connected between the two sliding members 4. One end of the main body of the electric push rod is pivotally connected to the first crossbar 3a at point G, and the other end is pivotally connected to the second crossbar 4a at point H. By setting the first drive mechanism 110, the position of the sliding member 4 relative to the first support member 2 can be automatically and conveniently adjusted, thereby allowing for different usage states. The adjustment and control are simple, effectively improving the convenience of use. In addition, one end of the first drive mechanism 110 can be disposed on the base frame 1, and the output end can be disposed on the sliding member 4, which can also drive the sliding member 4 to slide along the first support member 2 to drive the seat 5 to fold or unfold.

[0038] Please see Figure 1 and Figure 6 As shown, the base frame 1 forms a walking area 101 in the middle for the user to walk on. The auxiliary walking device 100 also includes foot pedals 120, which are located on the inner front end of the base frame 1 and on both sides of the walking area 101. By setting the foot pedals 120, the user's feet can be placed more comfortably when riding. Specifically, the foot pedals 120 can rotate between the horizontal and vertical planes via a rotating shaft, achieving a foldable configuration. By setting the foot pedals 120 as a foldable structure, when the foot pedals 120 are open, the user can place their feet on them and open the seat 5, thus enabling use as a wheelchair or four-wheel drive vehicle; when the foot pedals 120 are folded, the user can walk on the ground within the walking area 101 and hold onto the armrests 6 with both hands, thereby achieving standing walking with the assistance of the auxiliary walking device 100, which is very convenient to use.

[0039] For example Figure 4 and Figure 5As shown, the seat 5 includes a base 51, a seat 52, and a second drive mechanism 53. The base 51 has a U-shaped structure, and the seat 52 is located above the base 51 with its rear end pivotally connected to the rear end of the base 51 at pivot point J. The second drive mechanism 53 is disposed between the seat 52 and the base 51 to drive the other end of the seat 52 to move closer to or away from the base 51. The second drive mechanism 53 is electrically driven, with one end pivotally connected to the rear end of the base 51 at pivot point M, and its output end pivotally connected to the lower front end of the seat 52 at pivot point O. By setting the second drive mechanism 53 between the base 51 and the seat 52, the seat 52 can be adjusted in position relative to the base 51, thereby giving the entire auxiliary walking device 100 more usable states, making it more functional, and improving its convenience and applicability.

[0040] like Figure 2 , Figure 3 and Figure 5 As shown, the auxiliary walking device 100 also includes a linkage mechanism 130. The armrest 6 is pivotally connected to another pivot seat on the upper end of the sliding member 4, with the pivot point being K, and the armrest 6 extends forward of the auxiliary walking device 100. The linkage mechanism 130 is disposed between the seat 5 and the armrest 6 to drive the armrest 6 to swing. By setting the linkage mechanism 130, the armrest 6 can be folded or unfolded with the seat 5, improving ease of use. Specifically, the linkage mechanism 130 includes a linkage member 131, with a connecting arm 61 extending from the armrest 6, the connecting arm 61 being located on the lower side of the armrest 6; one end of the linkage member 131 is pivotally connected to the other end of the seat 5, with the pivot point coinciding with the pivot point J, and the other end of the linkage member 131 is pivotally connected to the connecting arm 61, with the pivot point being N. By setting the connecting arm 61, the linkage member 131 can easily drive the armrest 6 to swing, and the structure is more compact and reasonable.

[0041] In summary, the various usage states of the auxiliary walking device 100 in this embodiment will be described in detail below:

[0042] like Figure 1 and Figure 3As shown, when driving in a normal sitting posture, the first drive mechanism 110 is in a retracted state. At this time, the first support member 2 and the second support member 3 are in a crossed state, and the slider 4 slides to the lowest end of the first support member 2. The seat 5 opens relative to the slider 4. The second drive mechanism 53 is also in a retracted state, and the seat 52 is close to the base 51, so that the entire seat 5 is in a roughly horizontal state. The armrest 6 opens relative to the slider 4. In addition, the foot pedal 120 is opened to a horizontal state. At this time, the user can sit on the seat 5 and place both feet on the foot pedal 120. By controlling the drive motor of the auxiliary walking device 100, it can be driven to move forward automatically, realizing the function of an electric four-wheeled vehicle.

[0043] Combination Figure 6 and Figure 7 As shown, when used in an assisted walking state, in a normal sitting posture, the first drive mechanism 110 is activated and its output end extends. At this time, the first drive mechanism 110 drives the sliding member 4 to slide upwards along the first support member 2. The sliding member 4 then causes the seat 5 to swing downwards as a whole, and the second support member 3 also swings accordingly, causing the seat 5 and the second support member 3 to move closer together between the two sliding members 4. Simultaneously, the sliding member 4 drives the third support member 10, which in turn causes the sliding member 4 and the first support member 2 to swing forward at a certain angle around the pivot point A, reaching a state approximately perpendicular to the base frame 1. Furthermore, the sliding member 4 drives the linkage member 131, causing the linkage member 131 to swing the armrest 6 upwards at a certain angle, bringing the armrest 6 to a horizontal state. Afterwards, the two foot pedals 120 are folded up. At this point, the user can hold onto the armrest 6 with both hands and walk within the walking area 101 with the support of the assisted walking device 100.

[0044] Combination Figure 8 and Figure 9 As shown, when driving in a standing posture, the foot pedal 120 is opened to a horizontal position in the assisted walking state. At this time, the user can stand on the foot pedal 120 and start the drive motor to drive it forward automatically.

[0045] Combination Figure 10 and Figure 11As shown, when driving in a high-sitting position, the second drive mechanism 53 is activated and its output end extends in the assisted walking state. At this time, the second drive mechanism 53 drives the seat 52 away from the base 51, causing the seat 52 to swing upwards around the pivot point J until it is approximately horizontal. The user can then drive in a higher sitting position. Alternatively, the user can get into the vehicle after adjusting to the high-sitting position, or they can get in in a normal sitting position and then adjust to the high-sitting position before use.

[0046] Compared with the prior art, this invention, by setting a first support member 2, a second support member 3, and a sliding member 4, pivotally connects the upper end of the second support member 3 to the seat 5, and the seat 5 to the sliding member 4, with the sliding member 4 slidably mounted on the first support member 2. Therefore, the sliding of the sliding member 4 can drive the seat 5 to swing, achieving the purpose of unfolding or folding the seat 5. When the seat 5 is unfolded, it can be used for the user to sit; when the seat is folded, the user can hold the armrests 6 mounted on the sliding member 4 to stand and walk, achieving the purpose of assisting walking. Therefore, this invention can both assist the user to stand and walk and provide seating, realizing the functions of an electric wheelchair, a four-wheeled vehicle, or a cane. It has multiple functions, and different usage states can be adjusted simply by adjusting the position of the sliding member 4 on the first support member 2, making it very simple and convenient to use.

[0047] like Figures 12 to 14 As shown in the figure, the structure of the auxiliary walking device 100 according to Embodiment 2 of the present invention is illustrated.

[0048] The structure of the auxiliary walking device 100' in this embodiment is basically the same as that in the previous embodiment, except for the structure of the handrail 6'. The handrail 6' in this embodiment includes a first connecting rod 6a', a second connecting rod 6b', a third connecting rod 6c', a fourth connecting rod 6d', a handrail bar 6e', and a handrail drive mechanism 6f'. Adjacent pairs of the first connecting rod 6a', second connecting rod 6b', third connecting rod 6c', and fourth connecting rod 6d' are pivotally connected to form a quadrilateral. The handrail bar 6e' is fixed between any one of them, and the handrail drive mechanism 6f' is disposed between any two of them. This allows the handrail 6' to achieve a telescopic function, thereby facilitating adjustments to accommodate different usage states of the auxiliary walking device 100' and improving ease of use and comfort. In this embodiment, the first connecting rod 6a' is provided with the connecting arm 61', and the linkage member 131' is connected to the connecting arm 61'. The pivot point between the second connecting rod 6b' and the first connecting rod 6a' coincides with the pivot point where the handrail 6' is pivotally connected to the sliding member 4'. The handrail 6' is disposed on the third connecting rod 6c'. One end of the handrail drive mechanism 6f' is pivotally connected to the first connecting rod 6a', and the output end is pivotally connected to the third connecting rod 6c'. The handrail drive mechanism 6f' is an electric push rod. In addition, the shape of the base frame 1' in this embodiment is slightly different from that in Embodiment 1, and a shock-absorbing mechanism is provided between the front wheel and the base frame 1' in this embodiment to improve the comfort of use. The functions and effects achieved by the auxiliary walking device 100' in this embodiment are basically the same as those in Embodiment 1 above, and will not be described again here.

[0049] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention shall still fall within the scope of the present invention.

Claims

1. An auxiliary walking device, characterized in that: The device includes a base frame, a first support member, a second support member, a sliding member, a seat, armrests, and wheels. The wheels are mounted on the base frame. The lower end of the first support member is mounted on the base frame. The lower end of the second support member is pivotally connected to the first support member or the base frame, and the upper end of the second support member is pivotally connected to one end of the seat. The seat is pivotally connected to the sliding member. The armrests are mounted on the sliding member. The sliding member is mounted on the first support member and can slide along the central axis of the first support member to drive the seat to unfold or fold relative to the first support member. The auxiliary walking device also includes a first drive mechanism that can drive the sliding member to slide. The lower end of the first support member is pivotally connected to the base frame, and the lower end of the first support member has a connecting member. One end of the connecting member is fixed to the lower end of the first support member, and the lower end of the second support member is pivotally connected to the connecting member. The auxiliary walking device also includes a third support member, one end of which is pivotally connected to the base frame, and the other end is pivotally connected to the sliding member. The lower end of the first support member is also pivotally connected to the base frame.

2. The auxiliary walking device as described in claim 1, characterized in that: The auxiliary walking device also includes a foot pedal, which is mounted on the base frame.

3. The auxiliary walking device as described in claim 2, characterized in that: The foot pedal is foldable.

4. The auxiliary walking device as described in claim 1, characterized in that: The seat includes a base, a seat, and a second drive mechanism. One end of the seat is pivotally connected to the base, and the second drive mechanism is disposed between the seat and the base to drive the other end of the seat to move closer to or away from the base.

5. The auxiliary walking device as described in claim 1, characterized in that: The auxiliary walking device also includes a linkage mechanism, the armrest is pivotally connected to the sliding member, and the linkage mechanism is disposed between the seat and the armrest to drive the armrest to swing.

6. The auxiliary walking device as described in claim 5, characterized in that: The linkage mechanism includes a linkage component, one end of which is pivotally connected to the other end of the seat, and the other end of which is pivotally connected to the armrest.

7. The auxiliary walking device as described in claim 6, characterized in that: The handrail extends into a connecting portion, which is located on the lower side of the handrail and pivotally connected to the linkage.

8. The auxiliary walking device as described in claim 1, characterized in that: The handrail includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a handrail bar, and a handrail driving mechanism. The first connecting rod, the second connecting rod, the third connecting rod, and the fourth connecting rod are pivotally connected to form a quadrilateral between adjacent pairs. The handrail bar is fixed between any one of them, and the handrail driving mechanism is disposed between any two of them.

9. The auxiliary walking device as described in claim 1, characterized in that: The auxiliary walking device also includes a backrest, which is disposed on the sliding member.

10. The auxiliary walking device as described in claim 1, characterized in that: The middle section of the base frame forms a walking area for the user to walk on.

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