Upper limb rehabilitation training device
By designing an upper limb rehabilitation training device that includes stretching and training mechanisms, the problems of stiff fingers and lack of stretching and relaxation in existing devices are solved, effectively exercising and relaxing the fingers, reducing the risk of functional degeneration.
Patent Information
- Application Number
- CN202411880270.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-03-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the training process, existing upper limb rehabilitation training devices have stiff fingers and lack of stretching and relaxation, resulting in limited flexibility and deterioration of fingers.
An upper limb rehabilitation training device is designed, including a stretching mechanism and a training mechanism. The stretching mechanism realizes the push and pulling movement of the arm through the slide rail and the counterweight frame. The training mechanism passively exercises and relaxes the fingers without active force through the arc-shaped bars and opening and closing components.
The device can effectively exercise your fingers, reduce fatigue and discomfort caused by active exercise, promote finger flexibility and normal joint movement, and reduce the risk of functional degradation.
Smart Images
Figure CN119680160A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of rehabilitation equipment, and in particular to an upper limb rehabilitation training device. Background Art
[0002] Upper limb rehabilitation training is essential for patients with stroke, trauma, postoperative rehabilitation, and other diseases that cause upper limb dysfunction. With the aging of the population, the demand for related rehabilitation is increasing. With the existing rehabilitation training devices, patients need to hold the equipment in their hands and then perform repeated pushing and pulling movements. However, during the push and pull process, the continuous holding movement will cause fatigue of the hand muscles, especially the fingers and forearm muscles, which may cause discomfort or pain in the long run. In addition, when patients perform repetitive exercises, their fingers fail to stretch and relax properly during the whole process, which not only limits the flexibility of the fingers, but also affects the normal movement of the joints. The independent movement ability of the fingers is an important part of rehabilitation. Lack of proper activities may lead to functional degradation during the rehabilitation process. Summary of the invention
[0003] In view of the deficiencies in the prior art, the present invention provides an upper limb rehabilitation training device, which has the advantage of being able to move and relax the fingers during training, thereby solving the problem of finger stiffness caused by continuously holding the device.
[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0005] An upper limb rehabilitation training device includes a base as a carrier of the entire device, a slide rail is obliquely installed on the base, and a stretching mechanism is provided on the slide rail for enhancing upper limb strength by pushing and pulling heavy objects by the arms. The base is also provided with a training mechanism, and the stretching mechanism includes a counterweight frame slidably connected to the slide rail, and the counterweight frame is provided with a handle for pushing it to move. The base is also provided with an adjustment mechanism, and the adjustment mechanism includes a transmission block fixed to the inner wall of the counterweight frame, and an arc groove is provided on the inner side of the transmission block. A load-bearing shaft is rotatably installed in the slide rail, and a plurality of resistance plates corresponding to the arc grooves are mounted on the load-bearing shaft. The training intensity can be adjusted by rotating the load-bearing shaft to make different resistance plates contact with the arc grooves.
[0006] Preferably, a worm wheel is mounted on the load-bearing shaft, a worm is rotatably mounted on the slide rail and meshes with the worm wheel for transmission, and a knob is fixedly connected to the worm.
[0007] Preferably, the training mechanism includes a bracket fixedly connected to the base, a rotating shaft is rotatably mounted on the bracket, a winding wheel is mounted on the rotating shaft, a transmission rope for pulling the counterweight frame to move is wound around the winding wheel, turntables are fixedly connected to both ends of the rotating shaft, two arc-shaped bars are eccentrically mounted on the outer side wall of the turntable, and an opening and closing component is provided on the turntable for driving the two arc-shaped bars to move in opposite directions.
[0008] Preferably, the opening and closing assembly includes a connecting shaft rotatably installed in the turntable, and bidirectional screw rods are provided on both sides of the connecting shaft. The bidirectional screw rods are threadedly connected with limit bars connected to the adjacent arc-shaped bars, and the limit bars are slidably connected to the turntable.
[0009] Preferably, a transmission shaft 1 is rotatably mounted on the turntable, and bevel gears for meshing transmission are mounted on the transmission shaft 1 and the connecting shaft. The turntable is provided with a transmission component that drives the two arc-shaped bars to open and close by rotating counterclockwise.
[0010] Preferably, the transmission assembly includes a gear ring fixed to the bracket, a transmission frame also fixed to the turntable, a transmission shaft 2 is rotatably mounted on the transmission frame, a spur gear meshing with the gear ring is mounted on the transmission shaft 2, a ratchet is fixed to the end of the transmission shaft 2, an open transmission disk is fixed to the transmission shaft 1, a pawl corresponding to the ratchet is hinged on the inner wall of the transmission disk, and a spring is fixed between the pawl and the inner wall of the transmission disk.
[0011] Preferably, the transmission rope is slidably connected to the base via a slide groove, the transmission rope is U-shaped, a lifting ring is fixedly connected to the counterweight frame, and a hook that is clamped to the lifting ring is fixedly connected to the end of the transmission rope.
[0012] Preferably, handle two is fixedly connected to both sides of the counterweight frame, and rubber sleeves are sleeved on handle one and handle two.
[0013] Preferably, a stopper for limiting the movement of the counterweight frame is fixedly connected to the slide rail, and the stopper is located obliquely above the turntable.
[0014] Preferably, cavities corresponding to the transmission blocks are provided on both sides of the slide rail, and the transmission blocks do not contact the slide rail.
[0015] By means of the above technical solution, the present invention provides an upper limb rehabilitation training device, which has at least the following beneficial effects:
[0016] 1. The upper limb rehabilitation training device, by setting up a training mechanism, can exercise the patient's fingers to a certain extent and relax the fingers. The patient does not need to use extra force, and the hands only need to be in a relaxed state to perform passive exercises. This can reduce fatigue and discomfort caused by active movement and encourage patients to perform rehabilitation training more easily.
[0017] 2. When the turntable is driven to rotate clockwise, the arc-shaped bar of the upper limb rehabilitation training device will not open or close, which can prevent the patient from interfering with the fingers by turning the turntable hard when the counterweight frame is driven to move by rotation. There is no need to worry about the fingers being affected by the opening and closing of the arc-shaped bar, and the patient can concentrate on the rotation movement, which helps to ensure the effectiveness of the exercise.
[0018] 3. In the upper limb rehabilitation training device, when the turntable rotates counterclockwise, the ratchet also rotates counterclockwise, so that the transmission disc can be driven to rotate through the ratchet, so that the arc-shaped bar opens and closes, which has the effect of relaxing the patient's fingers.
[0019] 4. The upper limb rehabilitation training device can make resistance plates with different friction coefficients contact the arc groove, so that the force required for the patient to push the limit frame is different, and then the intensity of the training can be adjusted. By adjusting the resistance, the patient can avoid applying too much force during training, effectively reducing the risk of sports injuries.
[0020] 5. The upper limb rehabilitation training device, by providing a single counterweight frame, can utilize different transmission mechanisms to achieve different types of training, which is beneficial to reducing the manufacturing cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in the front view direction;
[0023] Figure 2 It is a structural schematic diagram of the stretching mechanism of the present invention;
[0024] Figure 3 It is a structural schematic diagram of the regulating mechanism of the present invention;
[0025] Figure 4 It is a structural schematic diagram of the regulating mechanism of the present invention;
[0026] Figure 5 It is a schematic diagram of the external connection structure of the arc strip of the present invention;
[0027] Figure 6 It is a schematic diagram of the external connection structure of the turntable of the present invention;
[0028] Figure 7 For the present invention Figure 6 Enlarged view of point A.
[0029] Reference numerals:
[0030] 100, base; 101, slide rail;
[0031] 200, stretching mechanism; 201, counterweight frame; 202, handle 1; 203, handle 2; 204, stopper; 205, adjustment mechanism; 2051, load-bearing shaft; 2052, resistance sheet; 2053, transmission block; 2054, arc groove; 2055, worm wheel; 2056, worm; 2057, knob;
[0032] 300, training mechanism; 301, bracket; 302, rotating shaft; 303, winding wheel; 304, turntable; 305, arc bar; 306, transmission rope; 307, hook; 308, lifting ring; 309, opening and closing assembly; 3091, transmission shaft one; 3092, two-way screw rod; 3093, connecting shaft; 3094, bevel gear; 3095, limit strip; 310, transmission assembly; 3101, transmission frame; 3102, gear ring; 3103, transmission shaft two; 3104, spur gear; 3105, transmission disc; 3106, spring; 3107, pawl; 3108, ratchet. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0034] In recent years, with the improvement of public health awareness and the advancement of medical technology, the development and application of upper limb rehabilitation training equipment have become more and more extensive. These devices are mainly used to help patients with limited upper limb function caused by stroke, trauma, surgery, etc., to restore their hand flexibility, strength and coordination through systematic rehabilitation training. However, most of the devices on the market still have certain deficiencies in design and application, and need continuous innovation and improvement.
[0035] Some equipment designs are too simple, which limits the diversity of exercise methods and cannot meet the different functional training needs of patients. The monotony of the equipment may make patients feel bored, which in turn affects their initiative and persistence in training.
[0036] Embodiment 1:
[0037] Repetitive and single training patterns can easily make patients feel bored, which in turn reduces their enthusiasm for participating in training. This psychological impact may cause patients to lose confidence in the rehabilitation process and reduce the time and frequency of training. In order to solve the above problems, combined with Figure 1-Figure 3 As shown, an upper limb rehabilitation training device provided by the present invention includes a base 100 as a carrier of the entire device, a slide rail 101 is obliquely installed on the base 100, and a stretching mechanism 200 is provided on the slide rail 101 for enhancing the strength of the upper limbs by pushing and pulling heavy objects by the arms, which can effectively exercise the upper limb muscle groups such as shoulders, biceps and triceps, and help improve muscle strength and endurance. A training mechanism 300 for rotating the wrist is also provided on the base 100, which mainly has a training effect on the forearm and wrist.
[0038] The training intensity is difficult to adjust. There are multiple defects in the upper limb rehabilitation training device. First, if the training intensity is too low, the patient's rehabilitation process may become slow, and sufficient training stimulation cannot be obtained, resulting in insufficient muscle strength and stagnation of functional recovery; on the contrary, if the training intensity is too high, it may cause fatigue and injury to the patient, increasing the risk of sports injuries. In order to solve the above problems, the stretching mechanism 200 includes a weight frame 201 slidably connected to the slide rail 101, and the weight frame 201 is provided with a handle 202 for pushing it to move. The user holds one hand on the handle 202, and then pushes and pulls the weight frame 201. By continuing the above actions, the arm can be rehabilitated. The base 100 is also provided with an adjustment mechanism 205, which can adjust the intensity of the training according to the patient's condition;
[0039] The traditional way to adjust the training intensity is to add or remove weight blocks from the equipment, which requires disassembly or reconfiguration of the equipment, which may be cumbersome and time-consuming in actual operation, especially for patients who lack strength or flexibility, which will reduce their training enthusiasm. The adjustment mechanism 205 includes a transmission block 2053 fixed to the inner wall of the counterweight frame 201, and an arc groove 2054 is provided on the inner side of the transmission block 2053. A load-bearing shaft 2051 is rotatably installed in the slide rail 101, and the load-bearing shaft 2051 is provided with a plurality of resistance plates 2052 corresponding to the arc grooves 2054 respectively. The plurality of resistance plates 2052 are distributed around the center of the load-bearing shaft 2051, and the friction coefficient on each resistance plate 2052 gradually changes. The materials with successively decreasing friction coefficients of the plurality of resistance plates 2052 are rubber, polyurethane nylon, polytetrafluoroethylene, and metal. The training intensity is adjusted by rotating the load-bearing shaft 2051 to make different resistance plates 2052 contact with the arc grooves 2054.
[0040] Specifically, a worm wheel 2055 is mounted on the load-bearing shaft 2051, and a worm 2056 is rotatably mounted on the slide rail 101 and meshes with the worm wheel 2055. A knob 2057 is fixedly connected to the worm 2056. The knob 2057 is turned to drive the worm 2056 to rotate, and the worm 2056 drives the load-bearing shaft 2051 to rotate through the worm wheel 2055, so that the resistance plates 2052 with different friction coefficients can be brought into contact with the arc groove 2054, so that the force required for the patient to push the limit frame is different, and then the intensity of the training can be adjusted. By adjusting the resistance, the patient can avoid exerting too much force during training, which effectively reduces the risk of sports injuries.
[0041] Both sides of the weight frame 201 are fixedly connected with handles 203, and handles 1 202 and 203 are both covered with rubber sleeves. The patient can push the limit frame with two hands at the same time, and then train both arms.
[0042] Cavities corresponding to the transmission block 2053 are provided on both sides of the slide rail 101 , and the transmission block 2053 does not contact the slide rail 101 .
[0043] According to the embodiments, the resistance can be easily adjusted according to the user's physical condition and training goals through simple knob operation to meet the needs of different patients.
[0044] Embodiment 2:
[0045] Fixing the fingers in a gripping state and a single training form lead to boring patient experience and inability to activate the coordinated training of other muscle groups, which significantly limits the overall rehabilitation effect. In order to solve the above problems, combined with Figure 4 and Figure 5 As shown, on the basis of the first embodiment, the training mechanism 300 includes a bracket 301 fixedly connected to the base 100, a rotating shaft 302 is rotatably mounted on the bracket 301, a winding wheel 303 is mounted on the rotating shaft 302, a transmission rope 306 for pulling the counterweight frame 201 to move is wound around the winding wheel 303, both ends of the rotating shaft 302 are fixedly connected to a rotating disk 304, and two arc bars 305 are eccentrically mounted on the outer wall of the rotating disk 304. First, the patient's two hands are fixedly connected to the rotating disk 304, and the patient's two hands are fixedly connected to the rotating disk 304. The patient holds the arc-shaped bars 305 on both sides of the winding wheel 303 respectively, and then shakes the turntable 304 clockwise through the arc-shaped bars 305 to rotate, and the turntable 304 drives the winding wheel 303 on the rotating shaft 302 to rotate, and the winding wheel 303 rotates to wind the transmission rope 306, so that the transmission rope 306 pulls the counterweight frame 201 to move, which mainly plays a role in training the patient's wrist and forearm. The turntable 304 is provided with a switch for driving the two arc-shaped bars 305 to move in opposite directions. The closing assembly 309, then the patient stops shaking the turntable 304, and both hands are in a relaxed state. Then, the counterweight frame 201 slides obliquely downward due to its own gravity to reset. Since the transmission rope 306 and the counterweight frame 201 are in a taut state, the counterweight frame 201 will pull the transmission rope 306 when it moves, so that it drives the winding wheel 303 to rotate counterclockwise. When the winding wheel 303 rotates counterclockwise, the opening and closing assembly 309 opens and closes the two arc-shaped bars 305 on both sides. When the two arc-shaped bars 305 are opened, the patient's clenched hands are stretched open. Then the two arc-shaped bars 305 are closed, and the patient's hands are clenched together again, which can then exercise the patient's fingers to a certain extent and relax the fingers. The patient does not need to use extra force, and the hands only need to be in a relaxed state to perform passive exercises, which can reduce fatigue and discomfort caused by active movements and encourage patients to perform rehabilitation training more easily.
[0046] The opening and closing process of the arc strip 305 can directly affect the finger movements of the patient, which can not only promote blood circulation, but also effectively combat muscle sclerosis and joint stiffness.
[0047] The transmission rope 306 is slidably connected to the base 100 through a slide groove. The transmission rope 306 is U-shaped. A lifting ring 308 is fixedly connected to the counterweight frame 201. The end of the transmission rope 306 is fixedly connected to a hook 307 that is engaged with the lifting ring 308. The setting of the hook 307 and the lifting ring 308 can prevent the turntable 304 from running when the counterweight frame 201 is pushed by hand to move.
[0048] Furthermore, a stopper 204 for limiting the movement of the counterweight frame 201 is fixedly connected to the slide rail 101. The stopper 204 is located obliquely above the turntable 304 and can limit the position of the counterweight frame 201 to stop it from moving in front of the patient.
[0049] According to the embodiments, by using both hands at the same time, the upper limbs and core muscles can be effectively exercised, helping to improve the overall coordination and balance of the body.
[0050] Embodiment three:
[0051] During the training process, the fixed grip method limits the range of motion of the fingers and cannot provide training in multiple movement patterns, which leads to single muscle force, affects the overall development of the muscles, and hinders the recovery of diverse functions. In order to solve the above problems, combined with Figure 5 As shown, on the basis of the second embodiment, the opening and closing component 309 includes a connecting shaft 3093 rotatably installed in the turntable 304, and a two-way screw rod 3092 is provided on both sides of the connecting shaft 3093. The two-way screw rod 3092 is threadedly connected with a limit bar 3095 connected to the adjacent arc strip 305, and the limit bar 3095 is slidingly connected to the turntable 304. The connecting shaft 3093 drives the two-way screw rod 3092 on both sides to rotate, and the rotation of the two-way screw rod 3092 causes the limit bar 3095 to move left and right, and then the two limit bars 3095 drive the two arc strips 305 to open and close. The patient can enjoy finger exercise in a relaxed state without exerting additional force. This is especially important for patients in recovery and can effectively reduce the psychological burden during exercise.
[0052] Specifically, a transmission shaft 3091 is rotatably installed on the turntable 304, and a bevel gear 3094 of meshing transmission is set on the transmission shaft 3091 and the connecting shaft 3093. The turntable 304 is provided with a transmission component 310 which drives the two arc bars 305 to open and close by rotating counterclockwise. The connecting shaft 3093 rotates to drive the connecting shaft 3093 to rotate through the bevel gear 3094. When the turntable 304 is driven to rotate clockwise, the arc bar 305 will not open and close, which can prevent the patient from interfering with the fingers when the counterweight frame 201 is driven to move by rotating. There is no need to worry that the fingers will be affected by the opening and closing of the arc bar 305, and the patient can concentrate on the rotation action, which helps to ensure the effectiveness of the exercise. Subsequently, when the counterweight frame 201 is reset, it drives the turntable 304 to rotate counterclockwise, so that the arc bar 305 opens and closes, which can relax the fingers.
[0053] According to the embodiment, by using passive training, the patient can perceive the progress of the movement of his own fingers, which promotes his attention and participation in the rehabilitation process.
[0054] Embodiment 4:
[0055] If the fingers are passively opened during active force training, it will cause discomfort to the patient and affect the normal use of the equipment. In order to solve the above problems, Figure 6 and Figure 7 As shown, on the basis of the first embodiment, the transmission assembly 310 includes a ring gear 3102 fixedly connected to the bracket 301, a transmission frame 3101 is also fixedly connected to the rotating disk 304, a second transmission shaft 3103 is rotatably mounted on the transmission frame 3101, a spur gear 3104 meshing with the ring gear 3102 is mounted on the second transmission shaft 3103, a ratchet 3108 is fixedly connected to the end of the second transmission shaft 3103, an open transmission disk 3105 is fixedly connected to the first transmission shaft 3091, a pawl 3107 corresponding to the ratchet 3108 is hingedly connected to the inner wall of the transmission disk 3105, a spring 3106 is fixedly connected between the pawl 3107 and the inner wall of the transmission disk 3105, and when the rotating disk 304 rotates clockwise, it will also drive the spur gear 3104 to rotate. 04 rotates clockwise around the ring gear 3102. At this time, when the spur gear 3104 rotates, it will also drive the transmission shaft 2 3103 to rotate, and the transmission shaft 2 3103 drives the ratchet 3108 to rotate. The ratchet 3108 rotates clockwise to push the pawl 3107 away, but will not drive the transmission disk 3105 to rotate. Under the premise of maintaining comfort, the cooperation of the pawl 3107 and the ratchet 3108 can avoid excessive pressure on the fingers during forced action and reduce discomfort. When the turntable 304 rotates counterclockwise, the ratchet 3108 will also rotate counterclockwise, so that the transmission disk 3105 can be driven to rotate through the pawl 3107, so that the arc bar 305 can be opened and closed, which can relax the patient's fingers.
[0056] Through the above embodiments, it can be known that: first, the patient can rotate the knob 2057 according to his own situation to drive the worm 2056 to rotate, and the worm 2056 drives the load-bearing shaft 2051 to rotate through the worm wheel 2055, so that different resistance plates 2052 can be brought into contact with the arc groove 2054 to adjust the intensity of the training, and then the counterweight frame 201 can be pushed to move to perform rehabilitation training on the upper limbs. Then, the patient's two hands are respectively held on the arc bars 305 on both sides of the winding wheel 303, and then the turntable 304 is rotated clockwise through the arc bars 305. The turntable 304 drives the winding wheel 303 on the rotating shaft 302 to rotate, and the winding wheel 303 rotates to wind the transmission rope 306, so that the transmission rope 306 pulls the counterweight frame 201 to move. It mainly trains the patient's wrist and forearm. The patient stops shaking the turntable 304, and both hands are in a relaxed state. Then the counterweight frame 201 slides obliquely downward to reset due to its own gravity. Since the transmission rope 306 and the counterweight frame 201 are in a taut state, the counterweight frame 201 will pull the transmission rope 306 when it moves, so that it drives the winding wheel 303 to rotate counterclockwise. When the winding wheel 303 rotates counterclockwise, the opening and closing component 309 opens and closes the two arc-shaped bars 305 on both sides. When the two arc-shaped bars 305 are opened, the patient's clenched hands are stretched open. Then the two arc-shaped bars 305 are closed, and the patient's hands are clenched again, which can then exercise the patient's fingers to a certain extent and relax the fingers.
[0057] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An upper limb rehabilitation training device, comprising a base (100) as a carrier of the entire device, characterized in that: The base (100) is provided with a slide rail (101) which is inclined, and the slide rail (101) is provided with a stretching mechanism (200) for increasing the strength of the upper limbs by pushing or pulling a heavy object with the arms, and the base (100) is also provided with a training mechanism (300); The stretching mechanism (200) comprises a counterweight frame (201) slidably connected to the slide rail (101), the counterweight frame (201) is provided with a handle (202) for pushing it to move, and the base (100) is also provided with an adjustment mechanism (205); The adjustment mechanism (205) comprises a transmission block (2053) fixedly connected to the inner wall of the counterweight frame (201), an arc groove (2054) is provided on the inner side of the transmission block (2053), a load-bearing shaft (2051) is rotatably installed in the slide rail (101), and a plurality of resistance plates (2052) corresponding to the arc grooves (2054) are mounted on the load-bearing shaft (2051), and the training intensity is adjusted by rotating the load-bearing shaft (2051) so that different resistance plates (2052) are in contact with the arc grooves (2054).
2. The upper limb rehabilitation training device according to claim 1, characterized in that: The load-bearing shaft (2051) is sleeved with a worm wheel (2055), and a worm (2056) meshing with the worm wheel (2055) is rotatably mounted on the slide rail (101), and a knob (2057) is fixedly connected to the worm (2056).
3. The upper limb rehabilitation training device according to claim 1, characterized in that: The training mechanism (300) comprises a support (301) fixedly connected to a base (100), a rotating shaft (302) rotatably mounted on the support (301), a winding wheel (303) mounted on the rotating shaft (302), a transmission rope (306) for pulling a counterweight frame (201) to move wound around the winding wheel (303), a rotating disk (304) fixedly connected to both ends of the rotating shaft (302), two arc-shaped bars (305) eccentrically mounted on the outer side wall of the rotating disk (304), and an opening and closing assembly (309) for driving the two arc-shaped bars (305) to move in opposite directions is provided on the rotating disk (304).
4. The upper limb rehabilitation training device according to claim 3, characterized in that: The opening and closing assembly (309) comprises a connecting shaft (3093) rotatably mounted in the rotating disk (304), two-way screw rods (3092) are arranged on both sides of the connecting shaft (3093), and a limit bar (3095) connected to the adjacent arc-shaped bar (305) is threadedly connected on the two-way screw rod (3092), and the limit bar (3095) is slidably connected to the rotating disk (304).
5. The upper limb rehabilitation training device according to claim 4, characterized in that: A transmission shaft (3091) is rotatably mounted on the rotating disk (304), and bevel gears (3094) for meshing transmission are mounted on the transmission shaft (3091) and the connecting shaft (3093). A transmission assembly (310) is provided on the rotating disk (304) for driving the two arc-shaped bars (305) to open and close by rotating counterclockwise.
6. The upper limb rehabilitation training device according to claim 5, characterized in that: The transmission assembly (310) comprises a gear ring (3102) fixedly connected to a bracket (301); a transmission frame (3101) is also fixedly connected to the rotating disk (304); a transmission shaft (3103) is rotatably mounted on the transmission frame (3101); a spur gear (3104) meshing with the gear ring (3102) is mounted on the transmission shaft (3103); a ratchet (3108) is fixedly connected to the end of the transmission shaft (3103); an open transmission disk (3105) is fixedly connected to the transmission shaft (3091); a ratchet (3107) corresponding to the ratchet (3108) is hingedly connected to the inner wall of the transmission disk (3105); and a spring (3106) is fixedly connected between the ratchet (3107) and the inner wall of the transmission disk (3105).
7. The upper limb rehabilitation training device according to claim 3, characterized in that: The transmission rope (306) is slidably connected to the base (100) via a sliding groove. The transmission rope (306) is U-shaped. A lifting ring (308) is fixedly connected to the counterweight frame (201). A hook (307) that is clamped to the lifting ring (308) is fixedly connected to the end of the transmission rope (306).
8. The upper limb rehabilitation training device according to claim 1, characterized in that: The two sides of the counterweight frame (201) are fixedly connected with handles 2 (203), and handles 1 (202) and 2 (203) are both covered with rubber sleeves.
9. The upper limb rehabilitation training device according to claim 3, characterized in that: A stopper (204) for limiting the movement of the counterweight frame (201) is fixedly connected to the slide rail (101), and the stopper (204) is located obliquely above the rotating disk (304).
10. The upper limb rehabilitation training device according to claim 1, characterized in that: Cavities corresponding to the transmission block (2053) are provided on both sides of the slide rail (101), and the transmission block (2053) does not contact the slide rail (101).