Pedal-operated rehabilitation device for wheelchairs

Abstract

The present invention provides a pedal-type rehabilitation device for a wheelchair, comprising a first moving mechanism arranged at the bottom of the wheelchair, an electric pedal mechanism and a lifting mechanism arranged on the first moving mechanism, the electric pedal mechanism comprising a supporting plate, a pedal driving device arranged on the supporting plate, pedal members arranged on both sides of the pedal driving device, the pedal driving device being able to drive the pedal members to rotate, and the lifting mechanism comprising a first supporting plate and a lifting driving device, the first supporting plate being connected to the supporting plate. The present application can be stored at the bottom of the wheelchair under normal conditions, so as not to affect the normal use of the wheelchair. When rehabilitation training is required, the electric pedal mechanism can be extended from the bottom of the wheelchair through the first moving mechanism, so as to achieve the purpose of rehabilitation training. In addition, the present application can also use the lifting mechanism to adjust the height of the electric pedal mechanism, so that the present application has better adaptability to users of different age groups.

Description

Technical Field

[0001] The invention relates to the field of rehabilitation devices, and in particular to a pedal-type rehabilitation device for a wheelchair. Background Art

[0002] At present, in order to facilitate patients to conduct leg rehabilitation training while sitting in a wheelchair, a pedal device is usually fixed at the bottom of the front end of the wheelchair. When the patient is sitting in the wheelchair, the foot can be fixed on the pedal device for rehabilitation training similar to walking. However, the rehabilitation device fixed in front of the wheelchair will occupy a certain space, which may affect the leg activity space of the wheelchair user. For some users who have a large range of leg activities or need to adjust the leg posture frequently, this space occupation will make them feel cramped and uncomfortable. For example, it may be difficult for the user to straighten the legs or bend them at a large angle; in addition, the rehabilitation device fixed in the front may become an obstacle when the user gets on and off the wheelchair. Especially for people with limited mobility, they may need more space and more convenient access to safely transfer to or leave the wheelchair. The presence of the rehabilitation device may make this process more difficult and increase the risk of the user falling or getting injured; finally, the angle and position of the pedal rehabilitation device fixed in front of the wheelchair are relatively fixed. For some users who need multi-angle and all-round leg rehabilitation training, this fixed device may not meet the needs. For example, some rehabilitation training requires the legs to move at different heights and inclinations, and fixed-position rehabilitation devices may limit the performance of these training movements, thereby affecting the rehabilitation effect. Summary of the invention

[0003] In order to solve the above problems, the present application provides a pedal-type rehabilitation device for a wheelchair, including a first moving mechanism arranged at the bottom of the wheelchair and running through the front and back of the wheelchair, an electric foot pedal mechanism and a lifting mechanism are arranged on the first moving mechanism, the electric foot pedal mechanism includes a support plate, a foot pedal driving device is arranged on the support plate, and foot pedals are respectively arranged on both sides of the foot pedal driving device. The foot pedal driving device can drive the foot pedal to rotate along the circumferential surfaces on both sides of the foot pedal driving device, and the lifting mechanism can be moved by the first moving mechanism, and the lifting mechanism includes a first support plate and a lifting driving device for driving the first support plate to rise and fall, and the first support plate is connected to the support plate.

[0004] Furthermore, the first moving mechanism includes a first guide screw rod, which is arranged at the bottom of the wheelchair and laid along the bottom of the wheelchair from back to front, a first sliding seat is sleeved on the first guide screw rod, the first sliding seat and the first guide screw rod form a screw connection, a first rotating motor is arranged at one end of the first guide screw rod, and the lifting mechanism is installed on the first sliding seat.

[0005] Furthermore, first guide rails are arranged on both sides along the laying direction of the first guide screw rod, positioning grooves are arranged on both sides of the first guide rails, and positioning plates that can be clamped in the positioning grooves are arranged on the inner walls on both sides of the first sliding seat.

[0006] Furthermore, U-shaped connecting seats are respectively provided at the bottom of the first guide screw rod and the first rotating motor, and both ends of the connecting seats are respectively fixed to the bottom of the wheelchair.

[0007] Furthermore, the pedal drive device includes a second rotary motor, and torsion bars are arranged on both sides of the second rotary motor. One end of the torsion bar is connected to the driving end of the second rotary motor, and the other end thereof is axially connected to the pedal member.

[0008] Furthermore, the pedal member includes a sole, a first connecting member is arranged at the bottom of the sole, a first through hole is opened on the first connecting member, and the torsion bar is inserted into the first through hole to form an axial connection with the first through hole as the axis.

[0009] Furthermore, a roller is arranged at the bottom of the heel of the sole, and a groove matching the position of the roller is arranged on the supporting plate.

[0010] Furthermore, a second support plate is provided at the bottom of the front end of the sole, and the second support plate is perpendicular to the sole surface.

[0011] Furthermore, the lifting drive device includes a second guide screw and a third rotating motor vertically arranged on the first sliding seat, the first support plate is Z-shaped, one end of the first support plate is sleeved on the second guide screw and forms a screw connection with the second guide screw, and the other end of the first support plate is detachably connected to the support plate.

[0012] Furthermore, the first supporting plate and the supporting plate are provided with second through holes which are opposite to each other, a screw is inserted into the second through hole, and a roller and a supporting block are provided at the bottom of the supporting plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present application uses a first movable mechanism to enable its electric foot pedal mechanism and lifting mechanism to be stored at the bottom of the wheelchair under normal conditions, thereby not affecting the normal use of the wheelchair. When rehabilitation training is required, the first movable mechanism is used to extend the electric foot pedal mechanism and lifting mechanism from the front end of the wheelchair, thereby facilitating the patient's rehabilitation training. Compared with traditional rehabilitation devices, the present application can achieve the purpose of rehabilitation training for patients without affecting the wheelchair user. In addition, the present application can also use the lifting mechanism to adjust the height between the electric foot pedal mechanisms, so that the present application can be better adapted to users of different age groups.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the first moving mechanism of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the electric pedal mechanism of the present invention;

[0020] Figure 4 It is a structural schematic diagram of a footrest member of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the lifting mechanism of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the electric pedal mechanism of the present invention from another angle;

[0023] The reference numerals and names in the figures are as follows:

[0024] The first moving mechanism 100, the electric pedal mechanism 200, the lifting mechanism 300, the supporting plate 210, the pedal drive device 220, the pedal member 230, the first support plate 310, the lifting drive device 320, the first guide screw rod 110, the first sliding seat 120, the first rotating motor 130, the first guide rail 140, the positioning groove 141, the positioning plate 121, the connecting seat 150, the second rotating motor 221, the torsion bar 222, the sole 231, the first connecting member 232, the first through hole 233, the roller 234, the groove 211, the second support plate 235, the second guide screw rod 321, the third rotating motor 322, the second through hole 323, the screw rod 324, and the support block 213. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0026] The present invention is described in more detail. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present invention, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present invention. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0030] The preferred embodiments of the present invention will now be further described in conjunction with the accompanying drawings. Figure 1 As shown, a pedal-type rehabilitation device for a wheelchair includes a first moving mechanism 100 arranged at the bottom of the wheelchair and running through the front and back of the wheelchair, an electric pedal mechanism 200 and a lifting mechanism 300 are arranged on the first moving mechanism 100, the electric pedal mechanism 200 includes a supporting plate 210, a pedal drive device 220 is arranged on the supporting plate 210, pedal members 230 are respectively arranged on both sides of the pedal drive device 220, the pedal drive device 220 can drive the pedal member 230 to rotate along the circumferential surfaces on both sides of the pedal drive device 220, the lifting mechanism 300 can be moved by the first moving mechanism 100, the lifting mechanism 300 includes a first support plate 310 and a lifting drive device 320 for driving the first support plate 310 to rise and fall, and the first support plate 310 is connected to the supporting plate 210.

[0031] The present application is installed as a whole at the bottom of the wheelchair. Under normal circumstances, the electric pedal mechanism 200 and the lifting mechanism 300 are located at the bottom of the wheelchair, so as not to affect the normal driving and use of the wheelchair by the patient. When the patient on the wheelchair needs to perform rehabilitation training on the legs, the first moving mechanism 100 is first started to drive the electric pedal mechanism 200 and the lifting mechanism 300 to extend from the bottom to the front end of the wheelchair, and then the patient inserts and fixes the foot on the pedal member 230 of the electric pedal mechanism 200, and then the pedal drive device 220 is started to drive the pedal member 230 to rotate along both sides of the pedal drive device 220, so as to achieve rehabilitation training for the legs similar to walking. When the patient cannot insert and fix the foot on the pedal member 230 due to height or leg length problems, the lifting drive device 320 is started to drive the first support plate 310 and the support plate 210 to move upward, thereby adjusting the distance between the electric pedal mechanism 200 and the patient, so that the patient can insert and fix the foot on the pedal member 230.

[0032] The present application uses the first moving mechanism 100 to enable the electric foot pedal mechanism 200 and the lifting mechanism 300 to be stored at the bottom of the wheelchair under normal conditions, thereby not affecting the normal use of the wheelchair. When rehabilitation training is required, the first moving mechanism 100 is used to allow the electric foot pedal mechanism 200 and the lifting mechanism 300 to extend from the front end of the wheelchair, thereby facilitating the patient's rehabilitation training. Compared with traditional rehabilitation devices, the purpose of rehabilitation training for patients can be achieved without affecting the wheelchair user. In addition, the present application can also adjust the height between the electric foot pedal mechanisms 200 through the lifting mechanism 300, so that the present application can be better adapted to users of different age groups.

[0033] On the basis of the above embodiments, Figure 2 As shown, the first moving mechanism 100 includes a first guide screw rod 110, which is arranged at the bottom of the wheelchair and laid along the bottom of the wheelchair from back to front. A first sliding seat 120 is sleeved on the first guide screw rod 110, and the first sliding seat 120 forms a screw connection with the first guide screw rod 110. A first rotating motor 130 is arranged at one end of the first guide screw rod 110. When the first rotating motor 130 is started, it drives the first guide screw rod 110 to rotate, thereby driving the first sliding seat 120 to move along the first guide screw rod 110. The lifting mechanism 300 is installed on the first sliding seat 120, so when the first rotating motor 130 is started, the lifting mechanism 300 can move at the bottom of the wheelchair along the direction of the first guide screw rod 110.

[0034] In some embodiments, Figure 2 As shown, first guide rails 140 are arranged on both sides along the laying direction of the first guide screw rod 110, positioning grooves 141 are arranged on both sides of the first guide rails 140, and positioning plates 121 that can be clamped in the positioning grooves 141 are arranged on the inner walls on both sides of the first sliding seat 120. When the first sliding seat 120 moves along the first guide screw rod 110, since the positioning plates 121 are clamped in the positioning grooves 141, the first guide rails 140 can play a more precise guiding role on the moving direction of the first sliding seat 120.

[0035] In some embodiments, Figure 2 As shown, U-shaped connecting seats 150 are respectively provided at the bottom of the first guide screw rod 110 and the first rotating motor 130, and the two ends of the connecting seats 150 are respectively fixed to the bottom of the wheelchair, so as to fix the entire application to the bottom of the wheelchair.

[0036] On the basis of the above embodiments, Figure 3 and Figure 4As shown, the pedal drive device 220 includes a second rotating motor 221, and torsion bars 222 are arranged on both sides of the second rotating motor 221. One end of the torsion bar 222 is connected to the driving end of the second rotating motor 221, and the other end thereof is axially connected to the pedal member 230. When the second rotating motor 221 is started, the torsion bar 222 can be driven to rotate, thereby driving the pedal member 230 to rotate along the circumferential surfaces on both sides of the second rotating motor 221.

[0037] On the basis of the above embodiments, Figure 3 and Figure 4 As shown, the pedal member 230 includes a sole 231, a first connecting member 232 is arranged at the bottom of the sole 231, a first through hole 233 is opened on the first connecting member 232, and the torsion bar 222 is inserted into the first through hole 233 to form an axial connection with the first through hole 233 as the axis, that is, the sole 231 can rotate with the first through hole 233 as the axis. Therefore, when the patient inserts the foot into and fixes it on the sole 231, and then starts the second rotating motor 221 to drive the pedal member 230 to rotate, it can not only achieve rehabilitation training of the legs similar to walking, but also allow the patient to move the ankle part.

[0038] In some embodiments, in combination Figure 3 and Figure 4 As shown, a roller 234 is provided at the bottom of the heel position of the sole 231, and a groove 211 matching the position of the roller 234 is provided on the supporting plate 210, so that when the sole 231 rotates with the first through hole 233 as the axis, the roller 234 forms a sliding contact with the groove 211, thereby preventing the heel position of the sole 231 from scratching the supporting plate 210.

[0039] In some embodiments, in combination Figure 3 and Figure 4 As shown, a second support plate 235 is provided at the bottom of the front end of the sole 231, and the second support plate 235 is perpendicular to the surface of the sole 231, so that when the sole 231 rotates with the first through hole 233 as the axis, the second support plate 235 can prevent the front end of the sole 231 from hitting the ground, thereby causing damage to the patient's toes.

[0040] On the basis of the above embodiments, Figure 5As shown, the lifting drive device 320 includes a second guide screw rod 321 and a third rotating motor 322 vertically arranged on the first sliding seat 120, the first support plate 310 is Z-shaped, one end of the first support plate 310 is sleeved on the second guide screw rod 321 and forms a screw connection with the second guide screw rod 321, and the other end of the first support plate 310 is detachably connected to the supporting plate 210. When the third rotating motor 322 is started, the second guide screw rod 321 starts to rotate, thereby driving the first support plate 310 to move up and down along the second guide screw rod 321, and then driving the electric foot pedal mechanism 200 to move up and down.

[0041] In some embodiments, in combination Figure 5 and Figure 6 As shown, the first support plate 310 and the supporting plate 210 are provided with second through holes 323 which are opposite to each other. When the first support plate 310 and the supporting plate 210 need to be connected, the first support plate 310 and the supporting plate 210 need to be aligned with the second through holes 323 and then the screw 324 is inserted to assemble the first support plate 310 and the supporting plate 210 together, thereby assembling the electric foot pedal mechanism 200 and the lifting mechanism 300 together. Otherwise, the electric foot pedal mechanism 200 and the lifting mechanism 300 can be disassembled, so that the electric foot pedal mechanism 200 of the present application can be used alone. Based on the present embodiment, the bottom of the supporting plate 210 is provided with rollers 234 and a support block 213, so that the electric foot pedal mechanism 200 can be conveniently placed directly on the ground for transportation and use.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A pedal-operated rehabilitation device for a wheelchair, characterized in that: The invention comprises a first moving mechanism (100) arranged at the bottom of a wheelchair and passing through the front and rear of the wheelchair, an electric pedal mechanism (200) and a lifting mechanism (300) are arranged on the first moving mechanism (100), the electric pedal mechanism (200) comprises a supporting plate (210), a pedal driving device (220) is arranged on the supporting plate (210), pedal members (230) are arranged on both sides of the pedal driving device (220), the pedal driving device (220) can drive the pedal member (230) to rotate along the circumferential surfaces on both sides of the pedal driving device (220), the lifting mechanism (300) can be moved by the first moving mechanism (100), the lifting mechanism (300) comprises a first supporting plate (310) and a lifting driving device (320) for driving the first supporting plate (310) to rise and fall, and the first supporting plate (310) is connected to the supporting plate (210).

2. The pedal-type rehabilitation device for a wheelchair according to claim 1, characterized in that: The first moving mechanism (100) comprises a first guide screw (110), the first guide screw (110) is arranged at the bottom of the wheelchair and is laid along the bottom of the wheelchair from back to front, a first sliding seat (120) is sleeved on the first guide screw (110), the first sliding seat (120) and the first guide screw (110) form a screw connection, a first rotating motor (130) is arranged at one end of the first guide screw (110), and the lifting mechanism (300) is installed on the first sliding seat (120).

3. The pedal-type rehabilitation device for a wheelchair according to claim 2, characterized in that: First guide rails (140) are arranged on both sides along the laying direction of the first guide screw rod (110), positioning grooves (141) are arranged on both sides of the first guide rails (140), and positioning plates (121) that can be clamped in the positioning grooves (141) are arranged on the inner walls on both sides of the first sliding seat (120).

4. The pedal-type rehabilitation device for a wheelchair according to claim 2, characterized in that: A U-shaped connecting seat (150) is respectively arranged at the bottom of the first guide screw rod (110) and the first rotating motor (130), and both ends of the connecting seat (150) are respectively fixed to the bottom of the wheelchair.

5. The pedal-operated rehabilitation device for a wheelchair according to claim 1, characterized in that: The pedal drive device (220) comprises a second rotating motor (221), and torsion bars (222) are arranged on both sides of the second rotating motor (221). One end of the torsion bar (222) is connected to the driving end of the second rotating motor (221), and the other end is axially connected to the pedal member (230).

6. The pedal-operated rehabilitation device for a wheelchair according to claim 5, characterized in that: The pedal member (230) comprises a sole (231), a first connecting member (232) is arranged at the bottom of the sole (231), a first through hole (233) is opened on the first connecting member (232), and the torsion bar (222) is inserted into the first through hole (233) to form an axial connection with the first through hole (233) as the axis.

7. The pedal-operated rehabilitation device for a wheelchair according to claim 6, characterized in that: A roller (234) is arranged at the bottom of the heel position of the sole (231), and a groove (211) matching the position of the roller (234) is arranged on the supporting plate (210).

8. The pedal-operated rehabilitation device for a wheelchair according to claim 7, characterized in that: A second support plate (235) is provided at the bottom of the front end of the sole (231), and the second support plate (235) and the surface of the sole (231) are perpendicular to each other.

9. The pedal-operated rehabilitation device for a wheelchair according to claim 1, characterized in that: The lifting drive device (320) comprises a second guide screw (321) and a third rotating motor (322) vertically arranged on the first sliding seat (120); the first support plate (310) is Z-shaped; one end of the first support plate (310) is sleeved on the second guide screw (321) and forms a screw connection with the second guide screw (321); the other end of the first support plate (310) is detachably connected to the supporting plate (210).

10. The pedal-type rehabilitation device for a wheelchair according to claim 9, characterized in that: The first supporting plate (310) and the support plate (210) are provided with second through holes (323) which are opposite to each other, a screw rod (324) is inserted into the second through hole (323), and a roller (234) and a support block (213) are provided at the bottom of the support plate (210).

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