Damping-adjustable upper limb rehabilitation training device

Abstract

The utility model discloses a damping adjustable upper limb rehabilitation training device which comprises a driving wheel and a counterweight flywheel in transmission connection with the driving wheel, a crank is connected to the axis of the driving wheel, and the crank is used for receiving rotation power applied by the upper limbs of a patient; a braking structure is arranged at the position opposite to the balance weight flywheel and used for resisting the rotating torque of the balance weight flywheel so as to change training damping. The utility model aims to provide the damping-adjustable upper limb rehabilitation training device which can improve the flexibility and activity range of joints by actively training the upper limbs of a patient, relieve joint stiffness and amyotrophy caused by cerebral apoplexy or trauma, contribute to recovering the muscle force of the upper limbs of the patient and improve the rehabilitation effect of the upper limbs of the patient. Meanwhile, the training damping can be changed by applying external force to the counterweight flywheel so as to adapt to the training intensity of different patients.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rehabilitation equipment, more particularly to the adjustable damping 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 high requirements on the use conditions and is relatively expensive, and can usually only be configured 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 only provide a single training range, 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 adjustable damping upper limb rehabilitation training device, the flexibility and range of motion of joint can be increased by the active 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, simultaneously, training damping can be changed by exerting external force to counterweight flywheel, to adapt to the training intensity of different patients, to solve the technical problems described in background art.

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

[0008] A kind of adjustable damping upper limb rehabilitation training device, it is crucial that including drive wheel and the counterweight flywheel transmission connection of drive wheel, crank is connected in the drive wheel axle center, and the crank is used to receive the rotating power of patient upper limb exerted;Brake structure is arranged on the opposite position of the counterweight flywheel, and the brake structure is used to resist the moment of rotation of counterweight flywheel, to change training damping.

[0009] Further, the brake structure includes brake disc provided on the outer circumferential profile of the counterweight flywheel, brake pads are respectively provided on the left and right sides of the brake disc, and a spacing adjustment assembly is provided between the brake pads on the left and right sides.

[0010] Further, the spacing adjustment assembly includes clamping arms connected to each brake pad, two parallel arranged connecting rods are respectively hinged to each clamping arm, and the connecting rods are hingedly connected to a mounting seat at the end.

[0011] Further, a movable frame driven by hand wheel is also inserted in the mounting seat, two outwardly inclined support arms are connected to the end of the movable frame, a limiting slot is formed in the length direction of each support arm, a limiting shaft is further provided on the connecting rod close to the support arm, and the limiting shaft is constrained in the limiting slot to drive the connecting rods on both sides to tighten inwardly or expand outwardly when the movable frame moves linearly, so as to adjust the spacing of the brake pads on the left and right sides.

[0012] Further, a guiding sliding table is arranged on the mounting base, the movable frame is connected in the guiding sliding table, and a screw rod matched with the movable frame is also penetrated in the guiding sliding table, the screw rod extends out of the guiding sliding table and is connected with the hand wheel at the end thereof.

[0013] Further, the driving wheel is composed of two coaxially connected wheel discs, the wheel disc on the left side is connected with the counterweight flywheel on the left side of the brake disc through a chain or a belt, and the wheel disc on the right side is connected with the counterweight flywheel on the right side of the brake disc through a chain or a belt.

[0014] Further, a crank is arranged on the disc core of the wheel disc on the left side and the right side corresponding to the left arm and the right arm of the patient respectively, and a handle is connected at the end of the crank.

[0015] Further, a shell is further included, the driving wheel and the counterweight flywheel are integrated in the shell, the crank is supported on the shell wall of the shell through a first bearing, the rotating shaft of the counterweight flywheel is supported on the shell wall of the shell through a second bearing, and the mounting base is embedded in the shell wall of the shell.

[0016] Compared with the prior art, the device has the following beneficial effects:

[0017] (1) Through the design of the damping adjustable upper limb rehabilitation training device, not only the active training of the upper limbs of the patient is realized, the flexibility and the range of motion of the joint are increased, but also the training damping can be flexibly adjusted to adapt to the training intensity of different patients;

[0018] (2) The braking structure in the device effectively changes the rotating torque of the counterweight flywheel by adjusting the distance between the brake pieces, so as to realize the flexible adjustment of the training damping;

[0019] (3) Through the combined design of the guiding sliding table, the movable frame, the supporting arm, the parallel connecting rod and the clamping arm, the distance adjustment of the brake pieces is more convenient, and only the hand wheel needs to be rotated to realize the adjustment, and the two brake pieces adopt a translation mode when the distance changes, that is, no matter how the distance between the two brake pieces changes, the pitch angles of the two brake pieces will not change, which is beneficial to ensuring the braking effect;

[0020] (4) The double-wheel disc design of the driving wheel and the arrangement of the left and right cranks enable the patient to use both hands to train at the same time, thereby improving the training effect;

[0021] (5) The integrated design of the shell not only ensures the integrity and the aesthetics of the device, but also enhances the structural stability and the use safety of the device;

[0022] (6) The device has compact structure, low cost and is easy to transfer, can be widely used in various scenes such as home, hospital or rehabilitation center, and the patient can perform rehabilitation training without going to a specific place, thereby significantly improving the convenience of use. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be further described below in combination with the drawings and examples, wherein:

[0024] Figure 1 It is the internal structure schematic view (one) of the damping adjustable type upper limb rehabilitation training device in example one;

[0025] Figure 2 It is the internal structure schematic view (two) of the damping adjustable type upper limb rehabilitation training device in example one;

[0026] Figure 3 It is the internal structure schematic view (three) of the damping adjustable type upper limb rehabilitation training device in example one;

[0027] Figure 4 It is the internal structure schematic view (four) of the damping adjustable type upper limb rehabilitation training device in example one;

[0028] Figure 5 It is Figure 4 the local enlarged view of A part in example one;

[0029] Figure 6 It is the internal structure schematic view (five) of the damping adjustable type upper limb rehabilitation training device in example one;

[0030] Figure 7 It is Figure 6 the local enlarged view of B part in example one;

[0031] Figure 8 It is the overall structure schematic view (one) of the damping adjustable type upper limb rehabilitation training device in example one;

[0032] Figure 9 It is the overall structure schematic view (two) of the damping adjustable type upper limb rehabilitation training device in example one;

[0033] Marked in the figure: 1-drive wheel, 2-weight flywheel, 3-crank, 4-brake structure, 5-grip, 6-outer shell, 7-first bearing, 8-second bearing, 401-brake disc, 402-brake pad, 403-clamping arm, 404-connecting rod, 405-mounting seat, 406-moving frame, 407-branch arm, 408-limiting groove, 409-limiting shaft, 410-guiding sliding table, 411-screw rod, 412-hand wheel, 101-wheel disc, 102-chain. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical schemes 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 are 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 in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and are not used to indicate or imply that the devices or elements indicated must have the specific directions, be constructed and operated in the specific directions, and therefore cannot be understood as the limitation on 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 3 The first embodiment of the utility model is shown: a damping adjustable upper limb rehabilitation training device, including drive wheel 1 and counterweight flywheel 2 of drive wheel 1 transmission connection, the crank 3 is connected on the drive wheel 1 axle, the crank 3 is used to receive the rotating power of the upper limb of the patient, the brake structure 4 is arranged on the opposite position of the counterweight flywheel 2, and the brake structure 4 is used to resist the moment of inertia of the counterweight flywheel 2, so as to change the training damping.

[0037] Please refer to Figures 4 to 7In actual implementation, the braking structure 4 comprises a braking disc 401 arranged on the outer circumferential contour of the counterweight flywheel 2, and brake pads 402 are arranged on the left and right sides of the braking disc 401 respectively, and a spacing adjustment assembly is arranged between the brake pads 402 on the left and right sides. The spacing adjustment assembly comprises a clamping arm 403 connected to each brake pad 402, and two parallel arranged connecting rods 404 are hingedly connected to each clamping arm 403, and the connecting rods 404 are hingedly connected to a mounting base 405 at the ends. An activity frame 406 driven by a hand wheel 412 is also inserted into the mounting base 405, and two outwardly inclined supporting arms 407 are connected to the end of the activity frame 406, and a limiting slot 408 is formed in the length direction of each supporting arm 407, and a limiting shaft 409 is arranged on the connecting rod 404 close to the supporting arm 407, and the limiting shaft 409 is constrained in the limiting slot 408, so as to drive the connecting rods 404 on the left and right sides to be tightened inwardly or expanded outwardly when the activity frame 406 moves linearly, so as to adjust the spacing of the brake pads 402 on the left and right sides. A guide sliding table 410 is arranged on the mounting base 405, the activity frame 406 is connected in the guide sliding table 410, and a lead screw 411 matched with the activity frame 406 is also inserted into the guide sliding table 410, the lead screw 411 extends out of the guide sliding table 410 and is connected to the hand wheel 412 at the end.

[0038] In the embodiment, when the hand wheel 412 is rotated, the lead screw 411 drives the activity frame 406 to move linearly in the guide sliding table 410, and the movement of the activity frame 406 is converted into the spacing change between the brake pads 402 through the supporting arms 407, the connecting rods 404 and the clamping arms 403. In this way, the braking force applied by the brake pads 402 to the braking disc 401 can be conveniently adjusted by simply rotating the hand wheel 412, so as to realize the adjustment of the training damping. This design makes the operation of the device more convenient, and the patient or medical staff can quickly adjust the training difficulty according to the actual needs. During the training process, the patient can adjust the spacing of the brake pads 402 by rotating the hand wheel 412 according to the self condition and training needs. When it is needed to increase the training difficulty, the brake pads 402 can be rotated to approach the braking disc 401 to increase the friction force, so as to increase the training damping; on the contrary, when it is needed to reduce the training difficulty, the brake pads 402 can be rotated to move away from the braking disc 401 to reduce the friction force, so as to reduce the training damping.

[0039] In view of the interference problem of the brake disc 401 to the transmission connection, the driving wheel 1 is composed of two coaxially connected wheel discs 101 on the left and right sides. The wheel disc 101 on the left side is connected to the counterweight flywheel 2 on the left side of the brake disc 401 through a chain 102 or a belt. The wheel disc 101 on the right side is connected to the counterweight flywheel 2 on the right side of the brake disc 401 through a chain 102 or a belt. A crank 3 is arranged on the disc hub of the wheel disc 101 on the left and right sides respectively, corresponding to the left and right arms of the patient. A handle 5 is connected to the end of the crank 3.

[0040] The wheel disc 101 is connected to the counterweight flywheel 2 on one side of the brake disc 401 through a chain 102 to realize power transmission. The crank 3 is connected to the shaft center of the wheel disc 101. The patient can drive the crank 3 to rotate by holding the handle 5 and applying rotary power, thereby driving the wheel disc 101 and the counterweight flywheel 2 to rotate. The rotation of the counterweight flywheel 2 will generate a rotational torque, and the brake structure 4 will resist this rotational torque through the friction between the brake disc 401 and the brake pad 402, thereby changing the training damping.

[0041] As a preferred, in order to maintain the stability and reliability of the brake structure 4, some lubricating structure or heat dissipation structure can be arranged between the brake disc 401 and the brake pad 402 to reduce the noise, heat and wear caused by friction and prolong the service life of the device.

[0042] As shown in Figure 8 and Figure 9 , the device further comprises a housing 6, the driving wheel 1 and the counterweight flywheel 2 are integrated in the housing 6, the crank 3 is supported on the shell wall of the housing 6 through a first bearing 7, the rotating shaft of the counterweight flywheel 2 is supported on the shell wall of the housing 6 through a second bearing 8, and the mounting seat 405 is embedded in the shell wall of the housing 6.

[0043] The design of the housing 6 not only protects the mechanical structure inside the device and reduces the influence of external factors on the operation of the device, but also improves the appearance and portability of the device. The housing 6 is made of a solid and durable material, and the shell wall is soundproofed. On the one hand, it can resist collisions and scratches that may occur in daily use, and on the other hand, it can isolate noise.

[0044] In addition, in order to facilitate the use of patients, some humanized designs can be arranged on the device. For example, anti-slip texture is added at the handle 5 to improve the stability of holding; adjustment marks are arranged on the hand wheel 412 to guide the patient to correctly adjust the distance of the brake structure 4, etc.

[0045] In summary, through the design of the damping adjustable upper limb rehabilitation training device, not only the active training of the upper limb of the patient is realized, the flexibility and range of motion of the joint are increased, but also the training damping can be flexibly adjusted to adapt to the training intensity of different patients; the brake structure 4 in the device effectively changes the rotational moment of the counterweight flywheel 2 by adjusting the spacing of the brake pads 402, thereby realizing the flexible adjustment of the training damping; through the combined design of the guide sliding table 410, the movable frame 406, the branch arm 407, the parallel connecting rod 404 and the clamping arm 403, the spacing adjustment of the brake pads 402 is more convenient, only the hand wheel 412 needs to be rotated to realize it, and the two brake pads 402 adopt the translation mode when the spacing changes, that is, no matter how the spacing of the two brake pads 402 is, the pitch angle of the two brake pads 402 will not change, which is beneficial to ensure the braking effect; the double disc 101 design of the driving wheel 1 and the setting of the left and right cranks 3 enable the patient to use both hands to train at the same time, thereby improving the training effect; the integrated design of the shell 6 not only ensures the integrity and aesthetics of the device, but also enhances the structural stability and use safety of the device; the device has compact structure, low cost and is easy to transfer, and can be widely used in various scenes such as home, hospital or rehabilitation center, so that the patient can perform rehabilitation training without going to a specific place, thereby significantly improving the convenience of use.

[0046] Finally, it should be noted that the above disclosed technical solutions are only preferred embodiments of the present application, and of course cannot limit the scope of the present application, 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 present application, still belong to the scope covered by the present application.

Claims

1. A damped adjustable upper limb rehabilitation training device, characterized in that: The application relates to a training device for upper limbs, which comprises a driving wheel and a counterweight flywheel in transmission connection with the driving wheel, a crank is connected with the axis of the driving wheel and used for receiving the rotating power applied by the upper limbs of a patient; a brake structure is arranged on the counterweight flywheel in opposite positions and used for resisting the rotating moment of the counterweight flywheel to change the training damping.

2. The damping-adjustable upper limb rehabilitation training device according to claim 1, characterized in that: The brake structure comprises a brake disc arranged on the outer circumferential contour of the counterweight flywheel, brake pads are arranged on the left and right sides of the brake disc respectively, and a spacing adjusting assembly is arranged between the brake pads on the left and right sides.

3. The damping-adjustable upper limb rehabilitation training device according to claim 2, characterized in that: The spacing adjusting assembly comprises clamping arms connected with each brake pad, two parallel arranged connecting rods are hingedly connected with each clamping arm respectively, and the connecting rods are hingedly connected with an installation base at the tail ends.

4. The damping-adjustable upper limb rehabilitation training device according to claim 3, characterized in that: An activity frame driven by a hand wheel is also arranged in the installation base, two outwardly inclined supporting arms are connected with the tail end of the activity frame, a limiting slot is arranged in the length direction of each supporting arm, a limiting shaft is arranged on the connecting rod close to the supporting arm, the limiting shaft is constrained in the limiting slot, and the connecting rods on the left and right sides are driven to be tightened inwardly or expanded outwardly when the activity frame does linear motion, so that the spacing of the brake pads on the left and right sides is adjusted.

5. The damping-adjustable upper limb rehabilitation training device according to claim 4, characterized in that: A guide sliding table is arranged on the installation base, the activity frame is connected in the guide sliding table, a lead screw matched with the activity frame is also arranged in the guide sliding table, the lead screw extends out of the guide sliding table and is connected with the hand wheel at the tail end.

6. The adjustable damping upper limb rehabilitation training device according to any one of claims 2-5, characterized in that: The driving wheel is composed of two coaxially connected wheel discs, the wheel disc on the left side is connected with the counterweight flywheel on the left side of the brake disc through a chain or a belt, and the wheel disc on the right side is connected with the counterweight flywheel on the right side of the brake disc through a chain or a belt.

7. The damping-adjustable upper limb rehabilitation training device according to claim 6, characterized in that: A crank is arranged on the disc core of the wheel disc on the left and right sides corresponding to the left and right arms of the patient respectively, and a handle is connected with the tail end of the crank.

8. The adjustable damping upper limb rehabilitation training device according to any one of claims 3-5, characterized in that: The application further relates to an outer shell, the driving wheel and the counterweight flywheel are integrated in the outer shell, the crank is supported on the shell wall of the outer shell through a first bearing, the rotating shaft of the counterweight flywheel is supported on the shell wall of the outer shell through a second bearing, and the installation base is embedded in the shell wall of the outer shell.

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