Lower extremity rehabilitation assistive device

Abstract

The application belongs to the technical field of medical devices, and particularly relates to a lower limb rehabilitation auxiliary device. The device comprises a body, a lifting assembly arranged in the body, and a handrail assembly connected with the lifting assembly. The lifting assembly drives the handrail assembly to move up and down relative to the body. The lifting assembly comprises an electric push rod and a sliding assembly connected with the electric push rod. The handrail assembly is connected with the sliding assembly. The application sets the lifting assembly in the body, and drives the sliding assembly to move up and down along the body through the extension and retraction of the electric push rod in the lifting assembly, and then drives the handrail assembly to lift. The design solves the problem that the existing lower limb rehabilitation auxiliary device cannot adapt to users with different heights, so that the rehabilitation auxiliary device can be longitudinally adjusted according to the height of the user, thereby meeting the needs of users with different heights, improving the applicability and use effect of the device, and providing greater convenience for lower limb rehabilitation treatment.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, specifically relating to a lower limb rehabilitation assistive device. Background Technology

[0002] In the field of lower limb rehabilitation, assistive devices play a crucial role in promoting patient recovery and improving treatment outcomes. However, existing lower limb rehabilitation assistive devices lack vertical adjustment, hindering their adaptability to users of varying heights. Because individual heights differ, fixed-height assistive devices struggle to meet the needs of all users. Utility Model Content

[0003] To address the problem that existing lower limb rehabilitation assistive devices cannot adapt to users of different heights, this application provides a lower limb rehabilitation assistive device.

[0004] This application is achieved through the following technical solution:

[0005] A lower limb rehabilitation assistive device includes a body, a lifting assembly disposed within the body, and a handrail assembly connected to the lifting assembly. The lifting assembly drives the handrail assembly to move up and down relative to the body. The lifting assembly includes an electric push rod and a sliding assembly connected to the electric push rod. The handrail assembly is connected to the sliding assembly.

[0006] The handrail assembly includes a first arm assembly, a second arm assembly that is disposed opposite to the first arm assembly and cooperates to form an active space, and an adjustment mechanism for adjusting the distance between the first arm assembly and the second arm assembly. The adjustment mechanism includes a wheel, a first toothed rail disposed on the first arm assembly, and a second toothed rail disposed on the second arm assembly. The wheel has teeth that mesh with the first toothed rail and the second toothed rail respectively.

[0007] As described above, in a lower limb rehabilitation assistive device, the sliding component includes a column arranged along the height direction of the body, a telescopic rod connected to the output end of the electric push rod, and a sliding mechanism connected to the telescopic rod and slidably sleeved on the column, thereby driving the handrail assembly to connect with the sliding mechanism.

[0008] As described above, a lower limb rehabilitation assistive device includes a sliding mechanism comprising two sliding seats and a pin fixing block connected to the telescopic rod and connecting the two sliding seats. Each sliding seat includes a bushing, a connecting plate connected to the bushing and arranged around the bushing, and a bushing stop for holding the bushing within the connecting plate.

[0009] The lower limb rehabilitation assistive device described above includes a plurality of columns and a plurality of bushings corresponding one-to-one with the columns, and the connecting plate connects the plurality of bushings.

[0010] The lower limb rehabilitation assistive device described above further includes a left side clamp and a right side clamp connecting the two sliding seats, and the armrest assembly is connected to the left side clamp and the right side clamp respectively.

[0011] As described above, in a lower limb rehabilitation assistive device, a positioning hole is provided on the connecting plate corresponding to the bushing, and a fastener passes through the positioning hole to connect the connecting plate and the bushing.

[0012] As described above, in a lower limb rehabilitation assistive device, the bushing stop is provided with a first connecting hole, and the connecting plate is provided with a second connecting hole corresponding to the first connecting hole. Fasteners pass through the first connecting hole and the second connecting hole to connect the bushing stop and the connecting plate. The bushing stop is located on the upper and lower sides of the connecting plate.

[0013] The lower limb rehabilitation assistive device described above also includes a protective housing, in which the first arm assembly, the second arm assembly, and the wheel are partially nested. When the wheel rotates clockwise or counterclockwise, it causes the first arm assembly and the second arm assembly to extend or retract into the protective housing.

[0014] Compared with the prior art, this application has the following advantages:

[0015] This application discloses a lower limb rehabilitation assistive device. By incorporating a lifting component within the device and extending and retracting an electric push rod within the lifting component, a sliding component moves up and down along the device, thereby raising and lowering the handrail component. This design solves the problem that existing lower limb rehabilitation assistive devices cannot adapt to users of different heights. It enables the rehabilitation assistive device to be vertically adjusted according to the user's height, thereby meeting the needs of users of different heights, improving the applicability and effectiveness of the device, and providing greater convenience for lower limb rehabilitation treatment. Attached Figure Description

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

[0017] Figure 1 This is a three-dimensional embodiment of the present application. Figure 1 ;

[0018] Figure 2 yes Figure 1 A partially exploded view;

[0019] Figure 3 This is a three-dimensional perspective view of the sliding component in the embodiments of this application;

[0020] Figure 4 yes Figure 3 A partially exploded view;

[0021] Figure 5 yes Figure 3 The main view;

[0022] Figure 6 This is a three-dimensional embodiment of the present application. Figure 2 ;

[0023] Figure 7 yes Figure 6 A partial exploded view. Detailed Implementation

[0024] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0025] Please see Figures 1 to 7 A lower limb rehabilitation assistive device includes a body 1, a lifting assembly 2 disposed within the body 1, and a handrail assembly 3 connected to the lifting assembly 2. The lifting assembly 2 drives the handrail assembly 3 to move up and down relative to the body 1. The lifting assembly 2 includes an electric push rod 21 and a sliding assembly 22 connected to the electric push rod 21. The handrail assembly 3 is connected to the sliding assembly 22.

[0026] The handrail assembly 3 includes a first arm assembly 31, a second arm assembly 32 that is disposed opposite to the first arm assembly 31 and cooperates to form an active space 9, and an adjustment mechanism 33 for adjusting the distance between the first arm assembly 31 and the second arm assembly 32. The adjustment mechanism 33 includes a wheel 331, a first toothed rail 332 disposed on the first arm assembly 31, and a second toothed rail 333 disposed on the second arm assembly 32. The wheel 331 is provided with teeth 334 that mesh with the first toothed rail 332 and the second toothed rail 333 respectively.

[0027] In this embodiment, the preferred electric actuator is the Linac KA30-600. A lifting assembly is installed within the machine body, and the extension and retraction of the electric actuator within this assembly drives the sliding assembly to move up and down along the machine body, thereby raising and lowering the armrest assembly. This design solves the problem that existing lower limb rehabilitation assistive devices cannot adapt to users of different heights, allowing the rehabilitation assistive device to be vertically adjusted according to the user's height, thus meeting the needs of users of different heights, improving the device's applicability and effectiveness, and providing greater convenience for lower limb rehabilitation treatment. By rotating the wheel in the forward or reverse direction, the first and second toothed rails are driven by the teeth on the wheel to move the first and second arm components closer or further apart, thereby adjusting the size of the space between the first and second arm components. This makes the rehabilitation assistive device more closely fit the user's body size, thereby improving the applicability and comfort of the assistive device.

[0028] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the sliding assembly 22 includes a column 221 arranged along the height direction of the body 1, a telescopic rod 222 connected to the output end of the electric push rod 21, and a sliding mechanism 223 connected to the telescopic rod 222 and slidably sleeved on the column 221, thereby driving the handrail assembly 3 to connect with the sliding mechanism 223.

[0029] In this embodiment, the sliding component 22 is designed to allow the armrest component 3 to be vertically adjusted according to the user's height, thus meeting the needs of different users. The upright 221 is positioned along the height of the body 1, providing not only a stable support structure but also guiding the movement of the sliding mechanism. The output end of the electric actuator 21 is connected to the telescopic rod 222, and the telescopic rod 222 extends or retracts as the electric actuator 21 moves. The sliding mechanism 223 is connected to the telescopic rod 222 and slidably mounted on the upright 221, allowing the armrest component 3 to move up and down as the sliding mechanism 223 slides on the upright 221. This design not only improves the applicability of the device, allowing the rehabilitation assistive device to adapt to users of different heights, but also enables users to adjust the height of the armrest component 3 according to their needs, thus facilitating better rehabilitation training.

[0030] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the sliding mechanism 223 includes two sliding seats 2231 and a pin fixing block 2232 connected to the telescopic rod 222 and connecting the two sliding seats 2231. The sliding seat 2231 includes a bushing 22311, a connecting plate 22312 connected to the bushing 22311 and arranged around the bushing 22311, and a bushing stop 22313 for holding the bushing 22311 in the connecting plate 22312.

[0031] In this embodiment, the design of the two sliding seats 2231 provides a more stable sliding structure, enabling the handrail assembly 3 to remain stable during vertical movement. The pin fixing block 2232 is connected to the telescopic rod 222 and connects the two sliding seats 2231, allowing the sliding seats 2231 to move synchronously as the telescopic rod 222 extends or shortens. The design of the bushing 22311, connecting plate 22312, and bushing stop 22313 ensures that the sliding seats 2231 are stably fitted onto the column 221 and prevents the bushing 22311 from detaching from the connecting plate 22312. This design not only improves the stability and reliability of the sliding mechanism 223 but also makes the vertical movement of the handrail assembly 3 smoother and more precise.

[0032] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, it includes a plurality of the aforementioned columns 221 and a plurality of bushings 22311 corresponding one-to-one with the aforementioned columns 221, wherein the connecting plate 22312 connects the plurality of bushings 22311.

[0033] In this embodiment, the stability and load-bearing capacity of the sliding mechanism 223 can be improved. The design of multiple columns 221 can provide more support points, making the sliding mechanism 223 more stable when moving up and down. Multiple bushings 22311 correspond one-to-one with the columns 221, which can increase the contact area between the sliding mechanism 223 and the columns 221 and improve the smoothness of sliding. The connecting plate 22312 connects multiple bushings 22311, which can increase the structural strength of the sliding seat 2231 and enable it to withstand greater loads.

[0034] Furthermore, as a preferred embodiment of this solution and not a limitation, it also includes a left clamping plate 4 and a right clamping plate 5 connecting the two sliding seats 2231, with the armrest assembly 3 connected to the left clamping plate 4 and the right clamping plate 5 respectively.

[0035] In this embodiment, the stability and connection strength of the handrail assembly 3 can be improved. Specifically, the left clamping plate 4 and the right clamping plate 5 are respectively connected to two sliding seats 2231, which can form a stable frame structure, making the handrail assembly 3 more stable when moving up and down; at the same time, the handrail assembly 3 is connected to the left clamping plate 4 and the right clamping plate 5 respectively, which can increase the connection strength between the handrail assembly 3 and the sliding mechanism 223 and prevent the handrail assembly 3 from loosening or falling off during use.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, a positioning hole 6 is provided on the connecting plate 22312 corresponding to the bushing 22311, and a fastener passes through the positioning hole 6 to connect the connecting plate 22312 and the bushing 22311.

[0037] In this embodiment, the design of fasteners connecting the connecting plate 22312 and the bushing 22311 can improve the stability and reliability of the sliding mechanism 223. The positioning hole 6 can ensure the accurate alignment of the bushing 22311 and the connecting plate 22312, and prevent the bushing 22311 from shifting or loosening on the connecting plate 22312. The fasteners passing through the positioning hole 6 to connect the connecting plate 22312 and the bushing 22311 can increase the connection strength between the two and prevent the bushing 22311 from sliding off the connecting plate 22312.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation, the bushing stop 22313 is provided with a first connecting hole 7, and the connecting plate 22312 is provided with a second connecting hole 8 corresponding to the first connecting hole 7. Fasteners pass through the first connecting hole 7 and the second connecting hole 8 to connect the bushing stop 22313 and the connecting plate 22312. The bushing stop 22313 is located on the upper and lower sides of the connecting plate 22312.

[0039] In this embodiment, the stability and reliability of the sliding mechanism 223 can be improved. The bushing stop 22313 is located on the upper and lower sides of the connecting plate 22312, which can limit the bushing 22311 and prevent it from moving axially on the connecting plate 22312. The fastener passes through the first connecting hole 7 and the second connecting hole 8 to connect the bushing stop 22313 and the connecting plate 22312, which can increase the connection strength between the two and prevent the bushing stop 22313 from falling off the connecting plate 22312.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation, it also includes a protective housing 10, in which the first arm assembly 31, the second arm assembly 32, and the wheel 331 are partially nested within the protective housing 10. When the wheel 331 rotates clockwise or counterclockwise, it causes the first arm assembly 31 and the second arm assembly 32 to extend or retract into the protective housing 10.

[0041] In this embodiment, by partially nesting the first arm assembly, the second arm assembly, and the wheel within the protective housing, the linked components can be effectively protected, preventing external impacts or damage during use. Simultaneously, the protective housing provides a neat appearance, enhancing the overall aesthetics of the device. Furthermore, when the wheel rotates clockwise or counterclockwise, it can extend or retract the first and second arm assemblies within the protective housing, thereby adjusting the distance between the arm assemblies. The protective housing can be made of different shapes or materials to meet specific usage requirements. For example, waterproof materials can be used to protect the internal components from humid environments, or transparent materials can be used to facilitate observation of the internal components' operational status.

[0042] The working principle of this embodiment is as follows:

[0043] This application discloses a lower limb rehabilitation assistive device. By incorporating a lifting component within the device and extending and retracting an electric push rod within the lifting component, a sliding component moves up and down along the device, thereby raising and lowering the handrail component. This design solves the problem that existing lower limb rehabilitation assistive devices cannot adapt to users of different heights. It enables the rehabilitation assistive device to be vertically adjusted according to the user's height, thereby meeting the needs of users of different heights, improving the applicability and effectiveness of the device, and providing greater convenience for lower limb rehabilitation treatment.

[0044] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A lower limb rehabilitation assistive device, characterized in that, The device includes a body (1), a lifting assembly (2) disposed within the body (1), and a handrail assembly (3) connected to the lifting assembly (2). The lifting assembly (2) drives the handrail assembly (3) to move up and down relative to the body (1). The lifting assembly (2) includes an electric push rod (21) and a sliding assembly (22) connected to the electric push rod (21). The handrail assembly (3) is connected to the sliding assembly (22). The handrail assembly (3) includes a first arm assembly (31), a second arm assembly (32) which is disposed opposite to the first arm assembly (31) and cooperates to form an activity space (9), and an adjustment mechanism (33) for adjusting the distance between the first arm assembly (31) and the second arm assembly (32). The adjustment mechanism (33) includes a wheel (331), a first toothed rail (332) disposed on the first arm assembly (31), and a second toothed rail (333) disposed on the second arm assembly (32). The wheel (331) is provided with teeth (334) that mesh with the first toothed rail (332) and the second toothed rail (333) respectively.

2. The lower limb rehabilitation assistive device according to claim 1, characterized in that, The sliding assembly (22) includes a column (221) arranged along the height direction of the body (1), a telescopic rod (222) connected to the output end of the electric push rod (21), and a sliding mechanism (223) connected to the telescopic rod (222) and slidably sleeved on the column (221), thereby driving the handrail assembly (3) to connect with the sliding mechanism (223).

3. The lower limb rehabilitation assistive device according to claim 2, characterized in that, The sliding mechanism (223) includes two sliding seats (2231) and a pin fixing block (2232) connected to the telescopic rod (222) and connecting the two sliding seats (2231). The sliding seat (2231) includes a bushing (22311), a connecting plate (22312) connected to the bushing (22311) and arranged around the bushing (22311), and a bushing stop (22313) for holding the bushing (22311) in the connecting plate (22312).

4. The lower limb rehabilitation assistive device according to claim 3, characterized in that, It includes multiple columns (221) and multiple bushings (22311) corresponding to each column (221), and the connecting plate (22312) connects the multiple bushings (22311).

5. A lower limb rehabilitation assistive device according to claim 3, characterized in that, It also includes a left clamping plate (4) and a right clamping plate (5) connecting the two sliding seats (2231), and the armrest assembly (3) is connected to the left clamping plate (4) and the right clamping plate (5) respectively.

6. A lower limb rehabilitation assistive device according to claim 3, characterized in that, The connecting plate (22312) has a positioning hole (6) corresponding to the bushing (22311), and the fastener passes through the positioning hole (6) to connect the connecting plate (22312) and the bushing (22311).

7. A lower limb rehabilitation assistive device according to claim 3, characterized in that, The bushing stop (22313) is provided with a first connecting hole (7), and the connecting plate (22312) is provided with a second connecting hole (8) corresponding to the first connecting hole (7). The fastener passes through the first connecting hole (7) and the second connecting hole (8) to connect the bushing stop (22313) and the connecting plate (22312). The bushing stop (22313) is located on the upper and lower sides of the connecting plate (22312).

8. The lower limb rehabilitation assistive device according to claim 1, characterized in that, It also includes a protective housing (10), in which the first arm assembly (31), the second arm assembly (32) and the wheel (331) are partially nested. When the wheel (331) rotates forward or backward, it drives the first arm assembly (31) and the second arm assembly (32) to extend or retract into the protective housing (10).

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