A multifunctional hand rehabilitation training device

Abstract

The present invention discloses a multifunctional hand rehabilitation training device, which includes a rectangular base, a multifunctional handle, a first semi-circular ring assembly, a second semi-circular ring assembly and a sliding base. The sliding base is slidably embedded in the rectangular base. The second semi-circular ring assembly is connected to the sliding base, the first semi-circular ring assembly is slidably connected to the second semi-circular ring assembly, and the bottom end of the multifunctional handle is connected to the first semi-circular ring assembly. The present invention integrates five rehabilitation training modes, and can realize the pronation / supination, abduction / adduction training of the patient's arm, the ulnar flexion / radioulnar flexion training of the wrist, the grasping swing, lifting training and strength training of the fingers, enabling the patient to conduct comprehensive and effective daily rehabilitation training. The present invention has a simple structure, a small volume and a low cost, greatly reducing the limitations of the use environment, and can be used not only in the treatment room / hospital, but also in the home environment.

Description

Technical Field

[0001] The present invention relates to a rehabilitation training device, and more particularly to a multifunctional hand rehabilitation training device. Background Art

[0002] Among various limb dysfunctions, hand dysfunction has a great impact on life and seriously affects the patient's ability to take care of themselves. Upper limb rehabilitation equipment can assist the elderly and patients with motor dysfunction in rehabilitation training, prevent muscle atrophy, and restore the patient's arm movement ability. Most medical rehabilitation devices are bulky and not easy to move when applied in hospitals, and cannot achieve multiple degrees of freedom. To realize the home use and portability of rehabilitation robots, desktop hand rehabilitation devices have become a design trend.

[0003] Patent CN 107469290 A discloses a deformable handle for hand rehabilitation. The device includes a cylindrical main body, a diameter adjustment mechanism, a handle base, and a rehabilitation data acquisition system. The invention adopts an active rehabilitation training method. By changing the pose of the four-link mechanism, the distance between the arc-shaped housing and the central rod can be changed, thereby changing the handle diameter to meet the training needs of different patients with hand dysfunction.

[0004] Patent CN 109875841 A discloses a wrist rehabilitation device. The invention is a wrist rehabilitation device, which has a forearm support unit, a wrist varus / valgus unit, and a wrist composite unit. The forearm support base of the forearm support unit is fixedly connected to the connection support block of the wrist varus / valgus unit, and the large gear of the wrist varus / valgus unit is connected to the left support arm and the right support arm in the wrist composite unit.

[0005] It can be seen that the existing hand rehabilitation devices have problems such as a single rehabilitation training structure, certain limitations in the training parts, insufficient training intensity, poor rehabilitation effect, complex structure, and low adaptability to different scenarios. Summary of the Invention

[0006] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a multifunctional hand rehabilitation training device, which has a simple structure, a small volume, rich rehabilitation training functions, and little limitation in the use environment.

[0007] To achieve the above object, the present invention provides the following technical solution: a multifunctional hand rehabilitation training device, including a rectangular base and a multifunctional handle, further including a first semi-circular ring component, a second semi-circular ring component and a sliding base; a rectangular groove is opened on the upper surface of the rectangular base, linear rack guides are provided on the groove walls of the two long sides of the rectangular groove, and a second drive motor gear is provided on each of the two pairs of opposite sides of the sliding base corresponding to the two long sides of the rectangular groove. The sliding base is arranged in the rectangular groove of the rectangular base, and the second drive motor gear meshes with the linear rack guide; the bottom surface of the middle position of the second semi-circular ring component is connected to the central position of the upper top surface of the sliding base. A guide groove is provided in the circumferential direction of the inner circular surface of the second semi-circular ring component. A first drive motor gear is provided in the middle of the guide rail. A circular rack guide is provided in the circumferential direction of the outer circular surface of the first semi-circular ring component. The outer circular surface of the first semi-circular ring component fits with the inner circular surface of the second semi-circular ring component. The circular rack guide is embedded in the guide groove and meshes with the first drive motor gear; the multifunctional handle includes a handle head, a handle grip, a handle base and a connection shell. The handle grip is hollow inside. A second drive motor is provided at the bottom end inside the handle grip. The output shaft of the second drive motor is connected to a lead screw. A threaded slider is engaged with the lead screw. The connection shell is located inside the handle grip and its bottom end is connected to the threaded slider. A first drive motor is provided at the top end of the connection shell. The bottom end of the handle head is connected to the bottom end of the handle head. The bottom end of the handle grip is connected to the handle base through a hemispherical shaft structure. The bottom end of the handle base is connected to the top surface of the middle position of the first semi-circular ring component.

[0008] Further, two guide grooves are provided in the circumferential direction of the inner circular surface of the second semi-circular ring component, respectively located at the edges of the inner circular surface of the second semi-circular ring component, and a first drive motor gear is provided in the middle of each guide rail.

[0009] Further, two circular rack guides are provided in the circumferential direction of the outer circular surface of the first semi-circular ring component, and the positions of the two circular rack guides correspond to the positions of the two guide grooves provided in the circumferential direction of the inner circular surface of the second semi-circular ring component.

[0010] Setting two guide grooves and two circular rack guides can make the rotation of the first semi-circular ring component more stable and not prone to shaking.

[0011] Further, limit blocks are respectively provided at the two end positions of the circular rack guide.

[0012] Further, four spring columns are evenly and symmetrically arranged below the hemispherical shaft structure in the handle base, and the top ends of the four spring columns all abut against the bottom surface of the hemispherical shaft structure.

[0013] Further, a counterweight is provided inside the rectangular base; a rubber pad is provided on the bottom surface of the rectangular base; the counterweight and the rubber pad help to stabilize the whole device and increase stability to prevent tipping.

[0014] Further, the side of the rectangular base is provided with a power switch and a rehabilitation training mode selection key, both of which are connected to the driving motor gear and the driving motor; the power switch is used to control the on / off of the entire device, and the rehabilitation training mode selection key is used to select the corresponding rehabilitation training mode.

[0015] Compared with the prior art, the present invention integrates five rehabilitation training modes, and can realize the pronation / supination, abduction / adduction training of the patient's arm, the ulnar flexion / radioulnar flexion training of the wrist, the grasping swing, lifting training and strength training of the fingers, enabling the patient to conduct comprehensive and effective daily rehabilitation training; the present invention has a simple structure, small size and low cost, greatly reducing the limitations of the use environment, and can be used not only in the treatment room / hospital, but also in the home environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the assembly method of the present invention;

[0018] Figure 3 is a cross-sectional view of the structure of the multifunctional handle of the present invention;

[0019] Figure 4 is a schematic diagram of the internal structure of the handle base of the present invention;

[0020] Figure 5 is a schematic diagram of the grasping and pushing / pulling training mode of the present invention;

[0021] Figure 6 is a schematic diagram of the forearm rotation training mode of the present invention;

[0022] Figure 7 is a schematic diagram of the finger grasping swing training mode of the present invention

[0023] Figure 8 is a schematic diagram of the finger grasping and lifting training mode of the present invention

[0024] Figure 9 is a schematic diagram of the finger grasping and rotating training mode of the present invention;

[0025] In the figure: 1. Multifunctional handle; 1-1. Handle head; 1-2. Handle grip; 1-3. Hemispherical shaft structure; 1-4. Handle base; 1-5. First drive motor; 1-6. Connecting shell; 1-7. Lead screw; 1-8. Threaded slider; 1-9. Second drive motor; 1-10. Spring column; 2. First semi-circular ring assembly; 2-1. Ring rack guide; 3. Second semi-circular ring assembly; 3-1. First drive motor gear; 4. Sliding base; 4-1. Second drive motor gear; 5. Rectangular base; 5-1. Linear rack guide, 5-2. Rehabilitation training mode selection key; 5-3. Power on / off key. Detailed implementation mode

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] As Figures 1 to 9 shown, the present invention provides a technical solution: including a rectangular base 5, a multifunctional handle 1, a first semi-circular ring assembly 2, a second semi-circular ring assembly 3 and a sliding base 4.

[0029] As Figure 2 shown, a rectangular groove is provided on the upper surface of the rectangular base 5, and linear rack guides 5-1 are provided on the groove walls of the two long sides of the rectangular groove. Two pairs of opposite sides of the sliding base 4 corresponding to the two long sides of the rectangular groove are respectively provided with a second drive motor gear 4-1. The sliding base 4 is arranged in the rectangular groove of the rectangular base 5, and the second drive motor gear 4-1 meshes with the linear rack guide 5-1; when the second drive motor gear 4-1 rotates, the sliding base 4 is driven to slide back and forth in the rectangular groove through the gear-rack transmission, and the length of the rectangular groove is the sliding distance of the sliding base 4.

[0030] The bottom surface at the middle position of the second semi-circular ring component 3 is connected to the central position of the upper top surface of the sliding base 4. A guiding groove is provided in the circumferential direction of the inner circular surface of the second semi-circular ring component 3. A first driving motor gear 3-1 is provided in the middle of the guide rail. A ring rack guide rail 2-1 is provided in the circumferential direction of the outer circular surface of the first semi-circular ring component 2. The outer circular surface of the first semi-circular ring component 2 is attached to the inner circular surface of the second semi-circular ring component 3. The ring rack guide rail 2-1 is embedded in the guiding groove and meshes with the first driving motor gear 3-1. When the first driving motor gear 3-1 rotates, it drives the first semi-circular ring component 2 to make a reciprocating rotational motion along the guiding groove through the gear-rack transmission. In order to ensure that the ring rack guide rail 2-1 does not derail, limit blocks are respectively provided at the two end positions of the ring rack guide rail 2-1. When the ring rack guide rail 2-1 rotates and the limit block touches the first driving motor gear 3-1, the ring rack guide rail 2-1 will not continue to rotate. At this time, the limit block plays a limiting role.

[0031] As Figure 3 and Figure 4 shown, the multi-functional handle 1 includes a handle head 1-1, a handle grip 1-2, a handle base 1-4 and a connecting shell 1-6. The handle grip 1-2 is hollow inside. A second driving motor 1-9 is provided at the bottom end inside the handle grip 1-2. The output shaft of the second driving motor 1-9 is connected to a lead screw 1-7. A threaded slider 1-8 is engaged with the lead screw 1-7. The connecting shell 1-6 is located inside the handle grip 1-2 and its bottom end is connected to the threaded slider 1-8. When the second driving motor 1-9 works, it drives the lead screw 1-7 to rotate. The rotation of the lead screw 1-7 drives the threaded slider 1-8 and the connecting shell 1-6 to make a vertical lifting motion together. A first driving motor 1-5 is provided at the top end of the connecting shell 1-6. The bottom end of the handle head 1-1 is connected to the bottom end of the handle head 1-1. When the first driving motor 1-5 works, it drives the handle head 1-1 to rotate. The bottom end of the handle grip 1-2 is connected to the handle base 1-4 through a hemispherical shaft structure 1-3. Four spring columns 1-10 are evenly and symmetrically arranged below the hemispherical shaft structure 1-3 in the handle base 1-4. The top ends of the four spring columns 1-10 all abut against the bottom surface of the hemispherical shaft structure 1-3 to support the handle grip 1-2 in a vertical state. When the handle grip 1-2 is toggled, the handle grip 1-2 will tilt and press the spring column 1-10 in the tilted direction. When the force for toggling the handle grip 1-2 is removed, under the elastic force of the spring column 1-10, the spring column 1-10 will bounce back and push the handle grip 1-2 back to the initial vertical state, so that the handle grip 1-2 automatically returns to its position. The bottom end of the handle base 1-4 is connected to the top surface at the middle position of the first semi-circular ring component 2. The side surface of the rectangular base 5 is provided with a power switch 5-3 and a rehabilitation training mode selection key 5-2. The power switch 5-3 and the rehabilitation training mode selection key 5-2 are both connected to the driving motor gear and the driving motor.

[0032] The present invention integrates five rehabilitation training methods, and can drive patients to perform grasping-pushing-pulling training, forearm rotation training, grasping swinging training, grasping lifting training, and grasping rotation training.

[0033] As Figure 5 shown, the user grasps the handle grip rod 1-2 with the hand, and the second drive motor gear 4-1 works to drive the sliding base 4 and the handle grip rod 1-2 to slide back and forth in the rectangular groove of the rectangular base 5 for grasping-pushing-pulling training; as Figure 6 shown, the user grasps the handle grip rod 1-2 with the hand, and the first drive motor gear 3-1 works to drive the first semi-circular ring assembly 2 and the handle grip rod 1-2 to perform reciprocating rotational motion for forearm rotation training; as Figure 7 shown, the user grasps the handle grip rod 1-2 with the hand, and then swings the handle grip rod 1-2 in any direction of front, back, left, or right. The spring column 1-10 in the corresponding direction is pressed down. At this time, the spring column 1-10 will give a reaction force to the handle grip rod 1-2 to try to push the handle grip rod 1-2 back to its original position, so as to perform finger grasping swinging training; as Figure 8 shown, the user grasps the handle head 1-1 with the hand, and the second drive motor 1-9 works. By rotating the lead screw 1-7, the connecting shell 1-6 and the handle head 1-1 are driven to perform up and down lifting motion for grasping lifting training; as Figure 9 shown, the user grasps the handle head 1-1 with the hand, and the first drive motor 1-5 works to drive the handle head 1-1 to rotate. The handle head is rotated through the cooperation between the fingers and the wrist for grasping rotation training. The user switches and selects different rehabilitation training modes through the rehabilitation training mode selection key 5-2. Preferably, the rehabilitation training mode can also be selected by connecting to the screen terminal.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] The above is only a preferred embodiment of the present invention, and is not used to limit the present invention. Any minor modifications, equivalent replacements, and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A multifunctional hand rehabilitation training device, comprising a rectangular base (5) and a multifunctional handle (1), characterized in that, It further includes a first semi-circular ring component (2), a second semi-circular ring component (3) and a sliding base (4); Rectangular grooves are provided on the upper surface of the rectangular base (5). Linear rack guides (5-1) are provided on the groove walls of the two long sides of the rectangular groove. A second drive motor gear (4-1) is provided on each of the two pairs of opposite sides of the sliding base (4) corresponding to the two long sides of the rectangular groove. The sliding base (4) is arranged in the rectangular groove of the rectangular base (5), and the second drive motor gear (4-1) meshes with the linear rack guide (5-1); The bottom surface at the middle position of the second semi-circular ring component (3) is connected to the central position of the upper top surface of the sliding base (4). A guide groove is provided in the circumferential direction of the inner circular surface of the second semi-circular ring component (3). A first drive motor gear (3-1) is provided in the middle of the guide rail. An annular rack guide (2-1) is provided in the circumferential direction of the outer circular surface of the first semi-circular ring component (2). The outer circular surface of the first semi-circular ring component (2) is attached to the inner circular surface of the second semi-circular ring component (3). The annular rack guide (2-1) is embedded in the guide groove and meshes with the first drive motor gear (3-1); The multi-functional handle (1) includes a handle head (1-1), a handle grip (1-2), a handle base (1-4) and a connecting shell (1-6). The inside of the handle grip (1-2) is hollow. A second drive motor (1-9) is provided at the inner bottom end of the handle grip (1-2). The output shaft of the second drive motor (1-9) is connected to a lead screw (1-7). A threaded slider (1-8) is meshed with the lead screw (1-7). The connecting shell (1-6) is located inside the handle grip (1-2) and its bottom end is connected to the threaded slider (1-8). A first drive motor (1-5) is provided at the top end of the connecting shell (1-6). The bottom end of the handle head (1-1) is connected to the bottom end of the handle head (1-1). The bottom end outside the handle grip (1-2) is connected to the handle base (1-4) through a hemispherical shaft structure (1-3). The bottom end of the handle base (1-4) is connected to the top surface at the middle position of the first semi-circular ring component (2).

2. The multifunctional hand rehabilitation training device according to claim 1, characterized in that: Two guide grooves are provided in the circumferential direction of the inner circular surface of the second semi-circular ring component (3), respectively located at the edges of the inner circular surface of the second semi-circular ring component (3). A first drive motor gear (3-1) is provided in the middle of each guide rail.

3. A multifunctional hand rehabilitation training device according to claim 1, characterized in that: Two annular rack guides (2-1) are provided in the circumferential direction of the outer circular surface of the first semi-circular ring component (2). The positions of the two annular rack guides (2-1) correspond to the positions of the two guide grooves provided in the circumferential direction of the inner circular surface of the second semi-circular ring component (3).

4. A multifunctional hand rehabilitation training device according to claim 1, characterized in that: Limit blocks are respectively provided at the two end positions of the annular rack guide (2-1).

5. A multifunctional hand rehabilitation training device according to claim 1, characterized in that: Four spring columns (1-10) are evenly and symmetrically provided below the hemispherical shaft structure (1-3) in the handle base (1-4). The top ends of the four spring columns (1-10) all abut against the bottom surface of the hemispherical shaft structure (1-3).

6. The multifunctional hand rehabilitation training device according to claim 1, characterized in that: A counterweight is provided inside the rectangular base (5).

7. A multifunctional hand rehabilitation training device according to claim 1, characterized in that: A rubber pad is provided on the bottom surface of the rectangular base (5).

8. A multifunctional hand rehabilitation training device according to claim 1, characterized in that: The side of the rectangular base (5) is provided with a power switch (5-3) and a rehabilitation training mode selection key (5-2), and both the power switch (5-3) and the rehabilitation training mode selection key (5-2) are connected to the drive motor gear and the drive motor.

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