Electric wheelchair with auxiliary lower limb exercise function

Abstract

The utility model discloses a kind of electric wheelchair with auxiliary lower limb exercise function, it is related to electric wheelchair technical field, including electric wheelchair body, further include placing plate, placing plate is fixedly installed below electric wheelchair body, the front side of electric wheelchair body is rotatably installed with two supporting leg plates, the double legs of user who is sat on electric wheelchair body can be supported by supporting leg plate, reciprocating component for driving supporting leg plate to move is installed between placing plate and supporting leg plate, two supporting leg plates can be driven by reciprocating component with its and electric wheelchair body rotatable installation place as center synchronous or asynchronous swing, so as to drive the double legs of user can be in use electric wheelchair body Also can realize the activity exercise of lower limb, so as to can reduce the electric wheelchair body in prior art in the complication of lower limb muscle atrophy, joint stiffness and blood circulation disorder and muscle degradation etc. caused by user long-term sitting in use.

Description

Technical Field

[0001] This utility model relates to the field of electric wheelchair technology, and in particular to an electric wheelchair with an auxiliary function for lower limb exercise. Background Technology

[0002] As an important means of transportation, the market demand for electric wheelchairs continues to grow. Traditional electric wheelchairs are driven by motors and use control systems to achieve functions such as steering and speed change, focusing on solving the user's mobility needs. However, existing technology has the following significant drawbacks: traditional electric wheelchairs only focus on mobility and lack active intervention for the user's lower limb function. Prolonged sitting can lead to lower limb muscle atrophy, joint stiffness, and blood circulation disorders, further exacerbating the risk of disability and resulting in complications such as muscle degeneration due to lack of exercise. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing electric wheelchairs with lower limb exercise assistance functions, this utility model is proposed.

[0005] Therefore, the problem that this utility model aims to solve is that existing electric wheelchairs lack the function of exercising the user's lower limbs.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an electric wheelchair with lower limb exercise assistance function, including an electric wheelchair body and a placement plate, the placement plate being fixedly installed below the electric wheelchair body, two leg plates being rotatably installed on the front side of the electric wheelchair body, and each leg plate being provided with a foot pedal, and a reciprocating component for driving the leg plates to move is installed between the placement plate and the leg plates.

[0007] As a preferred embodiment of the electric wheelchair with lower limb exercise assistance function described in this utility model, the reciprocating component includes a bracket and an elastic mechanism. The bracket is installed on the side of the placement plate near the leg support plate. A rotating shaft is rotatably mounted on the bracket. Cams are installed on both sides of the rotating shaft. A drive mechanism for rotating the rotating shaft is provided on the placement plate. The elastic mechanism is used to cooperate with the cams to make the leg support plate swing back and forth.

[0008] As a preferred embodiment of the electric wheelchair with lower limb exercise assistance function described in this utility model, the drive mechanism includes a motor, which is mounted on a placement plate. An opening is provided in the middle of the bracket. A pulley is fixedly mounted on the rotating shaft, and the pulley is located at the opening. A pulley is also mounted on the output end of the motor, and a transmission belt is mounted on both pulleys.

[0009] As a preferred embodiment of the electric wheelchair with lower limb exercise assistance function described in this utility model, the elastic mechanism includes a connecting plate and a spring. Each leg plate is provided with a connecting plate on its rear side, and the connecting plate is fixedly installed on the front side of the placement plate. The spring is connected between the connecting plate and the leg plate, and the cam abuts against the rear side wall of the leg plate under the tension of the spring.

[0010] As a preferred embodiment of the electric wheelchair with lower limb exercise assistance function described in this utility model, both ends of the rotating shaft are connected to prism rods, and a sliding sleeve is slidably sleeved on the outer side of the prism rod, and the cam is installed on the outer wall of the sliding sleeve.

[0011] As a preferred embodiment of the electric wheelchair with lower limb exercise assistance function described in this utility model, wherein: a bolt passes through the outer wall of the sliding sleeve, and a threaded hole is provided at the end of the prism rod, and the bolt is threadedly engaged with the threaded hole.

[0012] As a preferred embodiment of the electric wheelchair with lower limb exercise assistance function described in this utility model, wherein: a locking component for disassembling and installing the cam is provided on the outer wall of the sliding sleeve.

[0013] As a preferred embodiment of the electric wheelchair with lower limb exercise function described in this utility model, the locking assembly includes a fixed sleeve and a threaded sleeve. The fixed sleeve is fixed on the side of the sliding sleeve near the rotating shaft. The outer circumferential wall of the sliding sleeve is also provided with a threaded groove, and the threaded sleeve is screwed onto the threaded sleeve.

[0014] As a preferred embodiment of the electric wheelchair with lower limb exercise function described in this utility model, wherein: a plurality of sliding rods are arranged on the outer wall of the sliding sleeve along its axial direction, and the sliding rods are located between the fixed sleeve and the threaded sleeve, and the cam is provided with mounting holes that match the sliding sleeve and the sliding rods.

[0015] The beneficial effects of this utility model are as follows: the leg support plates can support the legs of the user sitting on the electric wheelchair. The reciprocating components can drive the two leg support plates to swing synchronously or asynchronously with the rotation mounting point of the electric wheelchair body as the center. This allows the user's legs to exercise their lower limbs while using the electric wheelchair body, thereby reducing the occurrence of complications such as lower limb muscle atrophy, joint stiffness, blood circulation disorders, and muscle degeneration caused by prolonged sitting in existing electric wheelchairs, and improving practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of an electric wheelchair with lower limb exercise assistance function.

[0018] Figure 2 This is a side view schematic diagram of an electric wheelchair with lower limb exercise assistance function.

[0019] Figure 3 This is a schematic diagram of the reciprocating component in an electric wheelchair with lower limb exercise assistance function.

[0020] Figure 4 This is a structural diagram showing the disassembled state of the pivot shaft, prism rod, sliding sleeve, and bolts in an electric wheelchair with lower limb exercise assistance function.

[0021] Figure 5 This is a schematic diagram of the disassembled structure of a cam, sliding sleeve, and threaded sleeve in an electric wheelchair with lower limb exercise assistance function.

[0022] In the diagram: 1. Electric wheelchair body; 2. Placement plate; 3. Leg support plate; 4. Foot pedal; 5. Bracket; 6. Rotating shaft; 7. Cam; 8. Pulley; 9. Drive belt; 10. Connecting plate; 11. Spring; 12. Prismatic rod; 13. Sliding sleeve; 14. Bolt; 15. Fixing sleeve; 16. Threaded sleeve; 17. Threaded groove; 18. Mounting hole; 19. Motor; 20. Sliding rod. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Reference Figures 1-5 This embodiment of the present invention provides an electric wheelchair with lower limb exercise assistance function, including an electric wheelchair body 1. The electric wheelchair body 1 is a known existing device with electric walking function. This application only uses the electric wheelchair body 1 and does not change its function or structure, but only changes the structure of its support leg positions. Therefore, the structure and function of the electric wheelchair body 1 will not be described in detail, as it is a known device to those skilled in the art. Based on the structure of the electric wheelchair body 1 itself, it also includes a placement plate 2, which is fixedly installed below the electric wheelchair body 1. Two support legs are rotatably mounted on the front side of the electric wheelchair body 1. The leg support plate 3 supports the legs of the user sitting on the electric wheelchair body 1. Each leg support plate 3 is equipped with a footrest 4 for placing the user's feet. A reciprocating assembly is installed between the footrest plate 2 and the leg support plate 3 to drive the movement of the leg support plate 3. The reciprocating assembly can drive the two leg support plates 3 to swing synchronously or asynchronously with their rotational mounting point on the electric wheelchair body 1 as the center. This allows the user's legs to exercise their lower limbs while using the electric wheelchair body 1, thereby reducing the occurrence of complications such as lower limb muscle atrophy, joint stiffness, blood circulation disorders, and muscle degeneration caused by prolonged sitting in existing electric wheelchair bodies 1, and improving practicality.

[0027] Reference Figure 1 and Figure 5The reciprocating assembly includes a bracket 5 and an elastic mechanism. The bracket 5 is mounted on the placement plate 2 near the leg support plate 3. A rotating shaft 6 is rotatably mounted on the bracket 5, and cams 7 are mounted on both sides of the rotating shaft 6. A drive mechanism for rotating the rotating shaft 6 is provided on the placement plate 2. The elastic mechanism is used to cooperate with the cams 7 to make the leg support plate 3 swing back and forth. The drive mechanism can drive the rotating shaft 6 to rotate. With the setting of the elastic mechanism, while the rotating shaft 6 drives the cams 7 to rotate, the leg support plate 3 can realize the reciprocating swing action, realizing the activity training of the user's lower limbs and legs. The drive mechanism includes a motor 19, which is mounted on the placement plate 2. An opening is provided in the middle of the bracket 5. A pulley 8 is fixedly sleeved on the rotating shaft 6 and located at the opening. A pulley 8 is also installed at the output end of the motor 19, and a transmission belt 9 is fitted on the two pulleys 8. Through the transmission belt 9 and the two pulleys 8, the rotating shaft 6 and cams 7 are driven to rotate by the motor 19.

[0028] Reference Figure 1 , Figure 2 and Figure 3 The elastic mechanism includes a connecting plate 10 and a spring 11. Each leg plate 3 is provided with a connecting plate 10 on its rear side, and the connecting plate 10 is fixedly installed on the front side of the placement plate 2. The spring 11 is connected between the connecting plate 10 and the leg plate 3. The cam 7 abuts against the rear side wall of the leg plate 3 under the tension of the spring 11. The reciprocating swing of the leg plate 3 is realized by the elastic force of the spring 11 and the cam 7.

[0029] Reference Figure 3 and Figure 4 Both ends of the rotating shaft 6 are connected to prism rods 12, and a sliding sleeve 13 is slidably fitted on the outer side of the prism rod 12. The sliding sleeve 13 has a polygonal hole inside that matches the shape of the prism rod 12. The cam 7 is installed on the outer wall of the sliding sleeve 13. By disassembling the sliding sleeve 13, the relative position of the two cams 7 can be adjusted, thereby adjusting the relative swing amplitude of the two support legs 3. This adds different training modes and is suitable for different training modes and effects for users. A bolt 14 passes through the outer wall of the sliding sleeve 13. The end of the prism rod 12 is provided with a threaded hole. The bolt 14 is threaded into the threaded hole. The bolt 14 can be used to install and remove the sliding sleeve 13 on the prism rod 12, thereby fixing the cam 7 that changes angle.

[0030] Reference Figure 4 and Figure 5The outer wall of the sliding sleeve 13 is provided with a locking assembly for disassembling and installing the cam 7. The locking assembly includes a fixed sleeve 15 and a threaded sleeve 16. The fixed sleeve 15 is fixed on the sliding sleeve 13 near the rotating shaft 6. The outer circumferential wall of the sliding sleeve 13 is also provided with a threaded groove 17. The threaded sleeve 16 is screwed onto the threaded sleeve 16. The cam 7 can be clamped between the threaded sleeve 16 and the fixed sleeve 15 through the threaded sleeve 16 for the replacement and disassembly of the cam 7. This allows different users to use different sizes of cam 7, making replacement convenient. Multiple sliding rods 20 are provided on the outer wall of the sliding sleeve 13 along its axial direction, and the sliding rods 20 are located between the fixed sleeve 15 and the threaded sleeve 16. The cam 7 is provided with mounting holes 18 that match the sliding sleeve 13 and the sliding rods 20. The setting of the sliding rods 20 ensures that the cam 7 is stable after installation and replacement.

[0031] The working principle of this embodiment is as follows: Before use, the motor 19 is connected to the battery on the electric wheelchair body 1. When in use, the user sits on the electric wheelchair body 1 and turns on the motor 19. A control switch for controlling the rotation of the motor 19 can be installed on the armrest of the electric wheelchair body 1, which is easy to operate. The rotation of the motor 19 can drive the leg support plate 3 to rotate back and forth, thereby realizing the exercise of the user's lower limbs. By changing the relative angle of the two cams 7, different amplitudes can be achieved, and the user's two lower limbs can be adjusted synchronously or asynchronously (the different amplitudes mentioned in this embodiment refer to the misalignment amplitude between the two leg support plates 3). By removing and installing the cams 7 through the locking assembly, cams 7 of different sizes can be replaced for use, and different users can choose to use them according to their needs (multiple cams 7 of different sizes can be placed under the electric wheelchair body 1 for easy replacement later).

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electric wheelchair with lower limb exercise assistance function, comprising an electric wheelchair body (1), characterized in that: It also includes a placement plate (2), which is fixedly installed below the electric wheelchair body (1). Two leg plates (3) are rotatably installed on the front side of the electric wheelchair body (1), and each leg plate (3) is provided with a foot pedal (4). A reciprocating component for driving the leg plate (3) to move is installed between the placement plate (2) and the leg plate (3).

2. The electric wheelchair with lower limb exercise assistance function as described in claim 1, characterized in that: The reciprocating assembly includes a bracket (5) and an elastic mechanism. The bracket (5) is mounted on the side of the placement plate (2) near the support leg plate (3). A rotating shaft (6) is rotatably mounted on the bracket (5). Cams (7) are mounted on both sides of the rotating shaft (6). A drive mechanism for rotating the rotating shaft (6) is provided on the placement plate (2). The elastic mechanism is used to cooperate with the cams (7) to make the support leg plate (3) reciprocate.

3. An electric wheelchair with lower limb exercise assistance function as described in claim 2, characterized in that: The drive mechanism includes a motor (19), which is mounted on a placement plate (2). An opening is provided in the middle of the bracket (5). A pulley (8) is mounted on a fixed sleeve (15) on the rotating shaft (6). The pulley (8) is located at the opening. A pulley (8) is also mounted on the output end of the motor (19), and a transmission belt (9) is fitted on both pulleys (8).

4. An electric wheelchair with lower limb exercise assistance function as described in claim 3, characterized in that: The elastic mechanism includes a connecting plate (10) and a spring (11). The connecting plate (10) is provided on the rear side of each of the leg plates (3), and the connecting plate (10) is fixedly installed on the front side of the placement plate (2). The spring (11) is connected between the connecting plate (10) and the leg plate (3). The cam (7) abuts against the rear side wall of the leg plate (3) under the tension of the spring (11).

5. An electric wheelchair with lower limb exercise assistance function as described in claim 4, characterized in that: Both ends of the rotating shaft (6) are connected to prism rods (12), and a sliding sleeve (13) is slidably sleeved on the outer side of the prism rods (12). The cam (7) is installed on the outer wall of the sliding sleeve (13).

6. An electric wheelchair with lower limb exercise assistance function as described in claim 5, characterized in that: A bolt (14) passes through the outer wall of the sliding sleeve (13), and a threaded hole is provided at the end of the prism rod (12), and the bolt (14) is threadedly engaged with the threaded hole.

7. An electric wheelchair with lower limb exercise assistance function as described in claim 6, characterized in that: The outer wall of the sliding sleeve (13) is provided with a locking assembly for disassembling and installing the cam (7).

8. An electric wheelchair with lower limb exercise assistance function as described in claim 7, characterized in that: The locking assembly includes a fixed sleeve (15) and a threaded sleeve (16). The fixed sleeve (15) is fixed on the side of the sliding sleeve (13) near the rotating shaft (6). A threaded groove (17) is also provided on the outer circumferential wall of the sliding sleeve (13). The threaded sleeve (16) is screwed onto the threaded sleeve (16).

9. An electric wheelchair with lower limb exercise assistance function as described in claim 8, characterized in that: Multiple slide rods (20) are provided on the outer wall of the sliding sleeve (13) along its axial direction, and the slide rods (20) are located between the fixed sleeve (15) and the threaded sleeve (16).

10. An electric wheelchair with lower limb exercise assistance function as described in claim 9, characterized in that: The cam (7) is provided with mounting holes (18) that match the sliding sleeve (13) and the sliding rod (20).

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