Multifunctional upper limb rehabilitation training device

Abstract

The utility model discloses a multifunctional upper limb rehabilitation training device which comprises a driving hand wheel and a balance weight flywheel in transmission connection with the driving hand wheel, one side of the balance weight flywheel is in transmission connection with a driving motor through a first transmission structure and a second transmission structure in sequence, and a clutch structure is arranged between the first transmission structure and the second transmission structure. When the clutch structure is in a separated state, the counterweight flywheel receives rotating power actively applied by the upper limbs of the patient through the driving hand wheel; when the clutch structure is in a meshed state, the rotating torque of the driving motor is transmitted to the counterweight flywheel through the second transmission structure and the first transmission structure, so that the upper limbs of the patient are driven to be passively trained through the driving hand wheel. The utility model aims to provide the multifunctional upper limb rehabilitation training device which can improve the flexibility and activity range of joints by actively or passively training the upper limbs of a patient, relieve joint stiffness and amyotrophy caused by cerebral apoplexy or trauma, and help to recover the muscle force of the upper limbs of the patient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rehabilitation equipment, more particularly to a multifunctional upper limb rehabilitation training device. BACKGROUND

[0002] Upper limb dysfunction is one of the common rehabilitation diseases in modern humans, which seriously affects people's daily life and mental health. Multiple sclerosis, stroke, hemiplegia, rheumatism, paraplegia, quadriplegia, Parkinson's syndrome, muscle strength disorder, craniocerebral injury, cerebral apoplexy, and cardiovascular disease can all cause upper limb dysfunction. Among them, the number of stroke patients is large, and it is a common disease and frequently-occurring disease of the nervous system. Most patients with upper limb dysfunction are caused by stroke. The rehabilitation treatment of stroke includes traditional rehabilitation treatment methods (physical therapy, occupational therapy, and speech therapy, etc.), physical factor therapy, active training of affected limbs assisted by external devices, drugs, and minimally invasive treatment.

[0003] Studies have shown that upper limb rehabilitation training plays a crucial role in the rehabilitation process of stroke patients. This training mainly focuses on enhancing the muscle strength of the upper limbs, improving flexibility, and improving motor function, thereby helping them better complete daily life activities. First, upper limb rehabilitation training helps to reduce muscle atrophy and stiffness commonly seen in stroke patients. Through a series of targeted exercises, the patient's muscles can be effectively stimulated and exercised, gradually restoring their original strength and elasticity. Second, this training can significantly improve the patient's hand functions. Stroke patients often have hand weakness, lack of flexibility, and fine motor dysfunction, among other issues. Upper limb rehabilitation training can help them improve their grip strength, finger coordination, and arm range of motion, thereby better completing daily activities such as grasping objects, dressing, and washing. In addition, upper limb rehabilitation training can also alleviate the patient's limb pain. After a stroke, patients may experience pain due to muscle stiffness, limited joint mobility, and other reasons. Through rehabilitation training, the patient's local microcirculation improves, and the flexibility of muscles and joints is enhanced, thereby helping to reduce pain and improve the patient's quality of life. Finally, upper limb rehabilitation training can also help improve the patient's psychological state. As the upper limb function gradually recovers, patients can better participate in social activities, enhance their self-confidence and self-esteem, and reduce negative emotions such as anxiety and depression.

[0004] The training method of the traditional upper limb training device mainly relies on specific equipment, through pushing, pulling, lifting, and other actions to exercise the upper limb muscle group. These training devices usually contain adjustable weights and seats to accommodate different training needs and body sizes. Trainers can choose appropriate weights and training movements according to their individual abilities and training goals to achieve the purpose of exercising muscles, improving strength, and endurance.

[0005] However, on the one hand, the conventional upper limb training device has relatively high requirements on use conditions and is relatively expensive in cost, and can usually be configured only in a special rehabilitation center, so that the upper limb dysfunction patient can only train regularly in the rehabilitation center, on the other hand, the training targets of different patients are different, but the conventional training device can usually only provide a single training mode, and it is difficult to adapt to the specific conditions of different patients. Utility model content

[0006] The utility model aims at providing a kind of multifunctional upper limb rehabilitation training device, the flexibility and range of motion of joint can be increased by the active or passive training of patient upper limb, relieve the joint stiffness and muscle atrophy caused by stroke or trauma, help to restore patient upper limb muscle strength, to solve the technical problem described in background art.

[0007] To achieve the above object, the utility model discloses a kind of technical solutions first:

[0008] A kind of multifunctional upper limb rehabilitation training device, it is crucial that it include drive hand wheel and counterweight flywheel transmission connection with the drive hand wheel, drive motor is transmission connected in sequence in the side of the counterweight flywheel via first transmission structure and second transmission structure, and clutch structure is arranged between the first transmission structure and the second transmission structure;When the clutch structure is in the state of separation, the counterweight flywheel receives the rotating power that patient upper limb actively exerts by drive hand wheel;When the clutch structure is in the state of engagement, the rotation moment of the drive motor is transmitted to the counterweight flywheel via the second transmission structure, the first transmission structure, to drive patient upper limb passive training by the drive hand wheel.

[0009] Further, the first transmission structure includes gear ring and gear, the gear ring is concentrically fixed on the side of the counterweight flywheel, and the gear is engaged in the gear ring.

[0010] Further, the second transmission structure includes worm gear and worm that are engaged with each other, the worm gear is transmission connected with the gear by clutch structure, and the worm is connected on the output shaft of the drive motor.

[0011] Further, shaft hole is formed in the center of the worm gear, and the hole wall of the shaft hole is segmented and recessed to form a plurality of bayonets that are uniformly distributed in the circumference.

[0012] Further, the clutch structure comprises an insertion rod, a first end of the insertion rod is connected with the gear, a second end of the insertion rod penetrates the shaft hole and is connected with an operating rod, a flange is further formed on the insertion rod and corresponds to the shaft hole, a mounting hole is radially formed on the flange, and a clamping ball matched with the clamping hole is assembled in the mounting hole through a spring; when the operating rod is pressed, the clamping ball can be clamped in the clamping hole to transmit the torque between the worm gear and the gear; when the operating rod is pulled, the clamping ball is separated from the clamping hole to cut off the torque transmission between the worm gear and the gear.

[0013] Further, the worm gear is installed on a vertical plate through a plane bearing.

[0014] Further, the counterweight flywheel and the driving handle are connected through a chain or a belt.

[0015] Further, a crank is connected to the shaft center of the driving handle and corresponds to the left and right arms of the patient, and a handle is connected to the second end of the crank.

[0016] Further, the driving handle, the counterweight flywheel, the first transmission structure, the second transmission structure and the clutch structure are integrated in a shell.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] (1) The utility model has both passive and active training modes. In the active training mode, the patient can actively exert the rotating power through the driving handle, so as to exercise the muscle strength and endurance of the upper limbs and improve the flexibility and range of motion of the joints. In the passive training mode, the driving motor can drive the counterweight flywheel to rotate through the meshing of the clutch structure, and then drive the patient's upper limbs to be passively trained through the driving handle, which is helpful to recover the muscle strength of the patient's upper limbs. The double-mode design makes the device adapt to the training needs of different patients and realize personalized rehabilitation training.

[0019] (2) The clutch structure is designed uniquely, the torque transmission and cut-off between the worm gear and the gear are realized through the cooperation of the insertion rod, the clamping ball and the clamping hole, the operation is simple and convenient, and the structure is stable and reliable. The transmission mode of the worm gear and the worm makes the device have high transmission ratio and transmission efficiency when transmitting power, and the gear and the gear ring can achieve certain speed reduction effect, which ensures the stability and safety of the training.

[0020] (3) All the components are integrated in a shell, the structure is compact, the occupied space is small, and the device is convenient to use in rehabilitation centers or family environment. At the same time, the transmission connection between the driving handle and the counterweight flywheel adopts a chain or a belt, which not only has stable transmission, but also is easy to maintain and replace.

[0021] (4) The left and right cranks allow patients to use both hands simultaneously for training, which improves the training effect. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the internal structure of the multifunctional upper limb rehabilitation training device in Example 1 (I);

[0024] Figure 2 This is a schematic diagram (II) of the internal structure of the multifunctional upper limb rehabilitation training device in Example 1;

[0025] Figure 3 This is a schematic diagram (III) of the internal structure of the multifunctional upper limb rehabilitation training device in Example 1;

[0026] Figure 4 This is a schematic diagram of the disengaged clutch structure in Example 1 (I);

[0027] Figure 5 This is a schematic diagram (II) of the disengaged state of the clutch structure in Example 1;

[0028] Figure 6 This is a schematic diagram (III) of the disengaged clutch structure in Example 1.

[0029] Figure 7 This is a schematic diagram (IV) of the disengaged state of the clutch structure in Example 1;

[0030] Figure 8 for Figure 7 Enlarged view of part A in the middle;

[0031] Figure 9 This is a schematic diagram of the overall structure of the multifunctional upper limb rehabilitation training device in Example 1 (I);

[0032] Figure 10 This is a schematic diagram (II) of the overall structure of the multifunctional upper limb rehabilitation training device in Example 1;

[0033] The diagram is labeled as follows: 1-Drive handwheel, 2-Counterweight flywheel, 3-First transmission structure, 4-Second transmission structure, 5-Drive motor, 6-Clutch structure, 301-Ring gear, 302-Gear, 401-Worm gear, 402-Worm, 403-Shaft hole, 404-Bay mount, 405-Surface bearing, 406-Upright plate, 601-Plug, 602-Operating lever, 603-Flange, 604-Mounting hole, 605-Spring, 606-Ball catch, 7-Chain, 8-Crank, 9-Housing. Detailed Implementation

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the utility model more clear, the following will be described in detail in combination with the drawings and specific embodiments, and it should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model.

[0035] In the description of the utility model, it should be understood that the directions or position relations indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0036] Figures 1 to 7 The first embodiment of the utility model is shown: a multifunctional upper limb rehabilitation training device, including drive hand wheel 1 and counterweight flywheel 2 transmission connection with drive hand wheel 1, drive motor 5 is transmission connected in sequence on the side of counterweight flywheel 2 through first transmission structure 3 and second transmission structure 4, and the clutch structure 6 is arranged between first transmission structure 3 and second transmission structure 4;When the clutch structure 6 is in the separation state, the counterweight flywheel 2 receives the rotation power of the patient's upper limb actively applied through drive hand wheel 1;When the clutch structure 6 is in the meshing state, the rotation torque of drive motor 5 is transmitted to counterweight flywheel 2 through second transmission structure 4, first transmission structure 3, so as to drive the patient's upper limb passive training through drive hand wheel 1.

[0037] In specific implementation, the first transmission structure 3 includes gear ring 301 and gear 302, the gear ring 301 is concentrically fixed on the side of counterweight flywheel 2, and the gear 302 is engaged in the gear ring 301. The second transmission structure 4 includes worm wheel 401 and worm 402 that are engaged with each other, the worm wheel 401 is transmission connected with gear 302 through clutch structure 6, and the worm 402 is connected on the output shaft of drive motor 5. The shaft hole 403 is formed in the center of the worm wheel 401, and the hole wall of the shaft hole 403 is segmented and recessed to form a plurality of bayonet 404 that are uniformly distributed in the circumference.

[0038] Please refer to Figure 8The clutch structure 6 comprises an insertion rod 601, the first end of which is connected with the gear 302, the tail end of which penetrates the shaft hole 403 and is connected with an operating rod 602, a flange 603 is further formed on the insertion rod 601 corresponding to the shaft hole 403, a mounting hole 604 is radially formed on the flange 603, a clamping bead 606 adapted to the bayonet 404 is assembled in the mounting hole 604 through a spring 605; when the operating rod 602 is pressed, the clamping bead 606 can be clamped in the bayonet 404 to transmit torque between the worm gear 401 and the gear 302; when the operating rod 602 is pulled, the clamping bead 606 is separated from the bayonet 404 to cut off the torque transmission between the worm gear 401 and the gear 302. The worm gear 401 is installed on a vertical plate 406 through a plane bearing 405.

[0039] As shown in the drawings, Figures 4 to 6 In this embodiment, the counterweight flywheel 2 and the driving hand wheel 1 are connected through a chain 7 or a belt drive. A crank 8 is connected to the axis of the driving hand wheel 1 corresponding to the left and right arms of the patient, and a handle is connected to the tail end of the crank 8.

[0040] As can be seen from Figure 9 and Figure 10 It can be seen that the driving hand wheel 1, the counterweight flywheel 2, the first transmission structure 3, the second transmission structure 4 and the clutch structure 6 are integrated in a shell 9.

[0041] In the embodiment, the driving motor 5 can be further equipped with a speed regulating device to adjust the training speed according to the rehabilitation progress of the patient. In addition, in order to improve the convenience and safety of the device, anti-skid lines can be provided on the driving hand wheel 1 to prevent the patient from slipping during training.

[0042] Further, the operating rod 602 of the clutch structure 6 can be arranged in a position easy to operate, so as to facilitate the patient or therapist to switch the active and passive training modes at any time. In addition, in order to enhance the stability of the device, anti-skid pads or weight blocks can also be provided at the bottom of the device to prevent movement or tilting during training.

[0043] At the same time, considering the training needs of different patients, the power and torque of the driving motor 5 can also be customized to meet the needs of patients at different rehabilitation stages. At the same time, the weight of the counterweight flywheel 2 can also be adjusted according to the strength of the patient and the training target.

[0044] In addition, some sensors such as torque sensors, speed sensors, etc. can be arranged on the shell of the device for real-time monitoring of the training of the patient. These data can be transmitted to the mobile phone or computer through wireless means such as Bluetooth or Wi-Fi for the doctor or the patient's family to view and analyze, so as to better evaluate the training effect and adjust the training plan.

[0045] In summary, the utility model has both passive and active training modes. In the active training mode, the patient can actively apply rotational power through the drive hand wheel 1 to exercise the muscle strength and endurance of the upper limbs and improve the flexibility and range of motion of the joints. In the passive training mode, the drive motor 5 can drive the counterweight flywheel 2 to rotate through the engagement of the clutch structure 6, and then drive the patient's upper limbs through the drive hand wheel 1 for passive training, which helps to restore the muscle strength of the patient's upper limbs. This dual-mode design allows the device to adapt to the training needs of different patients and achieve personalized rehabilitation training. The clutch structure 6 is designed uniquely, and the torque transmission and cutting between the worm wheel 401 and the gear 302 are achieved through the cooperation of the insertion rod 601, the clamping bead 606 and the bayonet 404, which is simple and convenient to operate and stable and reliable in structure. The transmission mode of the worm wheel 401 and the worm 402 makes the device have high transmission ratio and transmission efficiency when transmitting power, and the gear 302 and the gear ring 301 can achieve certain speed reduction effect, ensuring the stability and safety of the training. All components are integrated in a shell 9, which is compact in structure and small in space occupation, and is convenient to use in rehabilitation centers or home environment. At the same time, the transmission connection between the drive hand wheel 1 and the counterweight flywheel 2 adopts chain 7 or belt, which not only transmits stably, but also is easy to maintain and replace; the left and right cranks 8 are arranged, so that the patient can use both hands to train at the same time, improving the training effect.

[0046] Finally, it should be noted that the above disclosed technical solutions are only preferred embodiments of the utility model, and of course cannot limit the scope of the utility model, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

Claims

1. A multifunctional upper limb rehabilitation training device, characterized in that: The device comprises a driving hand wheel and a counterweight flywheel connected with the driving hand wheel, a driving motor connected with the counterweight flywheel through a first transmission structure and a second transmission structure, and a clutch structure arranged between the first transmission structure and the second transmission structure.

2. The multifunctional upper limb rehabilitation training device according to claim 1, characterized in that: The first transmission structure comprises a gear ring and a gear, the gear ring is concentrically fixed on the side of the counterweight flywheel, and the gear is engaged in the gear ring.

3. The multifunctional upper limb rehabilitation training device according to claim 2, characterized in that: The second transmission structure comprises a worm gear and a worm, the worm gear is connected with the gear through the clutch structure, and the worm is connected with the output shaft of the driving motor.

4. The multifunctional upper limb rehabilitation training device according to claim 3, characterized in that: An axle hole is arranged in the center of the worm gear, and the hole wall of the axle hole is segmented and recessed to form a plurality of uniformly distributed clamping ports.

5. The multifunctional upper limb rehabilitation training device according to claim 4, characterized in that: The clutch structure comprises a plug rod, the first end of the plug rod is connected with the gear, the tail end of the plug rod penetrates the axle hole and is connected with an operating rod, a flange is formed on the plug rod corresponding to the axle hole, an installation hole is arranged on the flange in the radial direction, a clamping ball matched with the clamping port is arranged in the installation hole through a spring, when the operating rod is pressed, the clamping ball can be clamped in the clamping port to transmit torque between the worm gear and the gear, and when the operating rod is pulled, the clamping ball is separated from the clamping port to cut off the torque transmission between the worm gear and the gear.

6. The multifunctional upper limb rehabilitation training device according to claim 5, characterized in that: The worm gear is installed on a vertical plate through a plane bearing.

7. The multifunctional upper limb rehabilitation training device according to any one of claims 1-6, characterized in that: The counterweight flywheel and the driving hand wheel are connected through a chain or a belt.

8. The multifunctional upper limb rehabilitation training device according to claim 7, characterized in that: A crank is connected with the driving hand wheel corresponding to the left and right arms of the patient, and a handle is connected with the tail end of the crank.

9. The multifunctional upper limb rehabilitation training device according to claim 1 or 8, characterized in that: The driving hand wheel, the counterweight flywheel, the first transmission structure, the second transmission structure and the clutch structure are integrated in a shell.

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